KR101677053B1 - A candle type apparatus for filtering ballast water preventing galvanic corroson of filter element - Google Patents

Abstract

The present invention relates to a ballast water filtering apparatus comprising: a housing having an inlet portion and an outlet portion through which ballast water of a ship can flow in and out and is divided into an upper housing upper portion and a lower housing lower portion by a lower plate; The filter unit is disposed along a concentric circular path around the driving shaft of the driving unit, and is capable of performing filtration and backwashing. The filter unit includes a filter unit for filtering the ballast water flowing through the filter unit, and an automatic washing unit for washing foreign substances adhered to the filter unit. Wherein at least one of the filter elements comprises at least one filter element and wherein the framework of the filter element is injection molded using a plastic material so that corrosion of the dissimilar metals occurs at a location where the filter element is joined to the top, To a candle type ballast water filtration device .

Description

TECHNICAL FIELD [0001] The present invention relates to a candle type ballast water filtration device having a filter element capable of preventing corrosion between dissimilar metals. [0002] The present invention relates to a candle type ballast water filtration device,

The present invention relates to a ballast water filtering apparatus comprising: a housing having an inlet portion and an outlet portion through which ballast water of a ship can flow in and out and is divided into an upper housing upper portion and a lower housing lower portion by a lower plate; The filter unit is disposed along a concentric circular path around the driving shaft of the driving unit, and is capable of performing filtration and backwashing. The filter unit includes a filter unit for filtering the ballast water flowing through the filter unit, and an automatic washing unit for washing foreign substances adhered to the filter unit. Wherein at least one of the filter elements comprises at least one filter element and wherein the framework of the filter element is injection molded using a plastic material so that corrosion of the dissimilar metals occurs at a location where the filter element is joined to the top, To a candle type ballast water filtration device .

Ballast water means seawater filled in a vessel to maintain the balance of the ship when the vessel is stationed at a specific port and unloaded or unloaded. If a vessel filled with ballast water is stationed at a port in another country and discharges its load, ballast water on board must be discharged to the port of the country. At this time, the marine species in the seawater used as ballast water . Therefore, treatment of ballast water in ships is required prior to discharging ballast water to other countries.

FIG. 1 is a cross-sectional view of a ballast water filtration treatment apparatus (hereinafter referred to as a conventional ballast water filtration apparatus) for discharging backwash water through a lower portion of a filtration apparatus among ballast water filtration apparatuses using a conventional filter.

(Patent Literature) No. 10-1287090 (Registered on Jul. 11, 2013) "High-efficiency candle-type ballast water filtration apparatus with high-

1, a conventional ballast water filtration apparatus is provided with a conical filter 92 in a circumferential direction in a cylindrical filter body 91 and a ballast water (Hereinafter referred to as "filter water") is passed through the filter 92 inside the filtering device body 91 and then filtered to flow out the filtered ballast water (hereinafter referred to as "filtration water") to the outflow portion 99, The rotation shaft 94 passing through the body 91 of the filtration apparatus and the suction unit 95 under the filtration apparatus connected thereto are rotated through the motor 93 located above the filtration apparatus so that the flushing arm 98 The filtered water filtered inside the filtration apparatus flows into the filter by the differential pressure between the suction unit 95 and the filtration unit to clean the foreign substances adhered to the filter, (Hereinafter referred to as " backwash water ") passes through the suction portion 95, Exit through the portion 96.

However, in the conventional ballast water filtering apparatus, when used as a filtration apparatus for an oil tank, only the solid material is filtered and adhered to the filter. Therefore, when backwashing due to differential pressure, So that the filtration efficiency can be improved. However, when it is used as a marine ballast water filtration device, materials such as microorganisms and jellyfish in seawater are very viscous, so it is difficult to be easily separated and removed by differential pressure when they are attached to filter pores. The efficiency of the apparatus is significantly reduced.

Particularly, the suction unit 95 includes a flushing arm 98 which receives the driving force of the motor 93 and is in close contact with the lower surface of the lower plate 97 on which the filter 92 is positioned and rotates at a constant angular velocity along a concentric circle The suction space 981 of the flushing arm 98 is matched with the inflow hole 971 of the lower plate 97 communicating with the lower surface of the filter so that the filter 92 is backwashed. The suction space 981 is communicated with the inlet hole 971 to perform backwashing and the flushing arm 98 is moved from the backwashing inlet hole 971 to the neighboring other inlet hole 971 ' The backwashing is not performed. As shown in FIGS. 4A and 4B, in the course of backwashing, in the section where the suction space 981 starts overlapping with the inflow hole 971, The differential pressure inside the filtration device is not applied so much that the foreign substances attached to the surface of the filter 92 are not separated cleanly. As a result, as shown in FIG. 4 (c), the suction space 981 is completely covered with the inlet hole 971, so that the foreign substances adhering to the inner wall surface of the filter 92 are cleanly removed. However, since the flushing arm 98 rotates at a constant angular speed in the prior art, the state of FIG. 4 (c) lasts only for a very short time, so that the backwashing efficiency is lowered, The balancing and de-balusting of the ship must be stopped during the shortening of the life of the equipment involved in backwashing such as the suction unit 95 and frequent breakdown and backwash, . Therefore, there is a need to improve the backwashing efficiency by accurately controlling the radius of rotation of the suction portion 95. [

Since the filtration apparatus seats the lower plate 97 on the upper surface of the protrusion 91a of the housing, the upper space of the lower plate 97 where the filtered water is stored and the lower space of the lower plate 97, There is a fear that the confidentiality is not properly performed and the filtered water and the raw water are mixed.

In addition, although the ship is very vigorous due to the waves, the lid 911 of the body 91 transmits the vibration as it is on the upper side of the filtration apparatus, So that the operation efficiency is remarkably lowered.

Since the filter 92 is made entirely of metal, the filter 92 may be provided with a problem such as corrosion occurring due to contact between dissimilar metals at a portion where the filter 92 is in contact with other components such as the lower plate 97 .

SUMMARY OF THE INVENTION The present invention has been made to solve the above problems,

The object of the present invention is to provide a mesh net for filtering raw water in a frame formed by a cross member of a cross member and a vertical member intersecting the filter element easily and firmly fixed to an upper cap and a lower cap, Device.

It is an object of the present invention to provide a candle-type ballast water filtration device capable of preventing corrosion of dissimilar metals at a portion where the frame is combined with an upper plate, a lower plate, or other components by injection- .

It is an object of the present invention to provide a flushing type air conditioner which rotates through a mechanical system without transmitting the rotational force of a power means directly to the flushing arm when the flushing arm rotates between filter elements disposed on a concentric path, Type ballast water filtration device that can accurately control the flow rate of the ballast water.

An object of the present invention is to provide an electric power steering apparatus which includes a rotating shaft for receiving a driving force from a power means and a rotating body rotating in conjunction with the rotating shaft to rotate the rotating body in synchronism with the flushing arm, Type ballast water filtration device capable of precisely controlling the rotation distance of the flushing arm by causing the rotating body and the flushing arm to rotate synchronously so that the angle of rotation of the flushing arm is the same.

It is an object of the present invention to provide a washing machine capable of effectively performing backwashing by making the time when the angle formed by the straight surface of the rotary blade with the center of the rotary shaft is larger than the angle formed by the inclined surface with the center of the rotary shaft, Type ballast water filtration device that can be used in a ballast water filtration system.

SUMMARY OF THE INVENTION It is an object of the present invention to provide a candle-type ballast water filtering apparatus capable of accurately and stably rotating a rotating body by forming at least two or more rotating blades.

An object of the present invention is to provide a candle type ballast water filtration device which allows an operator to select an optimal control means according to the number of divisions of the rotating body, the thickness of the rotating shaft, the working environment, etc., .

An object of the present invention is to provide a driving device for a motor vehicle having a first driving shaft connected to a rotating plate by a driving shaft and penetrating from the outside of the housing to the inside of the housing, a second driving shaft having one side connected to the first driving shaft and the other side connected to the suction unit, Type ballast water supply unit capable of transmitting the rotational force of the driving unit to the suction unit even if the centers of the first drive shaft and the second drive shaft do not perfectly coincide with each other so that the first drive shaft and the second drive shaft are connected to each other, And a filtration device.

SUMMARY OF THE INVENTION An object of the present invention is to provide a candle-type ballast water filtration apparatus that improves airtightness through an automatic washing unit including an airtight portion so that backwash water of the suction unit does not leak to the outside of the housing along the driving shaft.

The object of the present invention is to provide an air conditioner which includes a rotor fixed to the drive shaft and rotated together with the drive shaft, and a stator fixed to a bottom plate of the housing and configured to interfere with the rotor, Type ballast water filtration apparatus, in which the above-mentioned perturbing surface is closely contacted and the backwash water is not leaked.

An object of the present invention is to provide an air conditioner in which a rotator constituting an upper side of the airtight portion is supported by a support jaw of the drive shaft and a lock member constituting a lower side of the airtight portion is received to be seated on a lower cover fixed to the housing, And a candle type ballast water filtration device in which the drive shaft is fixed so as not to deviate from a predetermined position.

An object of the present invention is to provide a candle-type ballast water filtration device including a discharge pipe sealing member for preventing backwash water from leaking at a position where the discharge portion is connected to the suction portion.

An object of the present invention is to provide a washing machine including a bushing at a connection position between the driving shaft and the suction unit to prevent backwash water flowing into the suction unit from interfering with the rotation of the driving shaft, And to provide a ballast water filtration device.

An object of the present invention is to provide a filter unit that is fixed by an engagement protrusion formed on the upper side of the housing on the upper side and fixed by a pressure contact protrusion formed on the lower side by protruding inward of the housing to press the side surface of the filter unit, Type ballast water filtration apparatus which can withstand a low vibration and can be firmly fixed in the housing and can be easily coupled to a predetermined position when the filter unit is assembled.

It is an object of the present invention to provide a position setting hole on the upper side of the filter portion and insert a positioning mechanism through the positioning hole to set the position so that the filter element and the flushing arm are correctly communicated, Type ballast water filtration apparatus.

An object of the present invention is to provide a cushioning portion having an elastic force capable of relieving vibrations transmitted to the filter portion at a position where the filter portion abuts against the housing cover to prevent the filter portion from being broken or deviated from a fixed position due to vibration and impact Type ballast water filtration device that can be used in a ballast water filtration system.

An object of the present invention is to provide a motorcycle comprising a lower cover lower portion coupled to the housing at a lower side of the housing and having a predetermined area around a portion where the drive shaft is inserted through the housing, Type ballast water filtration apparatus including a lower core positioned below the housing, wherein the airtight portion and the drive shaft can be easily positioned and not deviated from a predetermined position.

The object of the present invention is to provide a candle-type ballast watercraft capable of easily assembling and repairing the filtration device by forming a suction portion that is seated inside the housing and a discharge portion that is inserted through the inside of the housing from outside, And a filtration device.

An object of the present invention is to provide a candle-type ballast water filtration apparatus that is easy to position and assemble by allowing the filter unit to be seated on the latching jaw on the upper side of the housing, and is easy to disassemble upon repair.

In order to achieve the above-mentioned object, the present invention includes the following configuration.

A filtration apparatus according to an embodiment of the present invention includes a housing having an inlet portion and an outlet portion through which the ballast water of a ship can flow in and out and is divided into an upper portion of the upper housing and a lower portion of the lower housing by the lower plate, The filter unit is disposed along a concentric circular path around the driving shaft of the driving unit, and performs filtration and backwashing. The filter unit includes a filter unit for filtering the ballast water flowing through the filter unit, and an automatic washing unit for washing foreign substances adhered to the filter unit. Wherein the automatic washing unit comprises a suction unit for sucking backwash water which is located below the housing and includes a foreign material adhered to the filter unit, A suction unit for sucking the one side of the suction unit, The wash water is characterized in that it includes discharge portions for discharging to the outside of the housing.

The filter device according to an embodiment of the present invention is characterized in that the filter element includes a frame formed into a cylindrical shape by intersecting a plurality of crosspieces and a plurality of longitudinal members, an upper cap fitted on the upper side of the frame and coupled to the upper plate, And a mesh net which is fixed in a state surrounding the frame by the upper and lower caps and filters raw water flowing in from the inflow hole of the lower plate, .

In the filtration apparatus according to an embodiment of the present invention, the frame is formed by injection molding using a plastic material.

In the filtration apparatus according to an embodiment of the present invention, the frame may include an upper cap protrusion made of a metal material having a thread formed at an end thereof so as to be coupled to the upper cap on an upper surface thereof, And an insert having a thread of a metal material on an inner surface thereof abutting the cap protrusion, so that the frame and the upper cap can be tightly coupled.

In the filtration apparatus according to an embodiment of the present invention, the lower plate includes an inlet hole formed in a plurality of through holes along a path of a concentric circle so that the filter element can be seated, And at least one flushing arm communicating with each of the filter elements on the concentric circular path of the filter part while rotating around the center of the filter part to receive the backwash water, wherein when the flushing arm is in communication with the lower side of the inflow hole and the filter element, The foreign matter adhered to the filter element is backwashed.

In the filtration apparatus according to an embodiment of the present invention, the driving unit includes a power unit for generating power, and a control unit for mechanically controlling the rotation of the suction unit by receiving power from the power unit to perform backwashing .

In the filtration apparatus according to an embodiment of the present invention, the control means includes a rotating shaft for receiving power from the power means, and a rotating body rotating in association with the rotating shaft, wherein the rotating body is connected to the suction portion And the rotating body and the suction unit rotate in synchronization with each other.

In the filtration apparatus according to an embodiment of the present invention, the rotating body includes a rotating bar divided into a plurality of portions at a predetermined angle around the circumference, and an angle between neighboring rotating bars And is approximately the same as the angle.

In the filtration apparatus according to an embodiment of the present invention, the control means includes a rotating blade formed along a predetermined circumference of a rotating shaft, and the rotating blade is sandwiched between neighboring rotating bars to transmit the rotational force of the rotating shaft to the rotating body And rotates the rotating body.

In the filtration apparatus according to an embodiment of the present invention, the rotary vane may include a straight surface formed in a direction perpendicular to the center of the rotary shaft and an inclined surface inclined at a center of the rotary shaft. When the rotary bar is in contact with the straight surface, The rotating body is in a rotating state when the rotating body is in a stopped state and is in contact with the inclined surface, and when the rotating body is in a stopped state, the flushing arm of the suction portion covers the inflow hole to cause backwashing.

In the filtration apparatus according to an embodiment of the present invention, the angle formed between the straight surface of the rotary vane and the center of the rotary shaft is larger than the angle formed between the slanted surface and the center of the rotary shaft.

In the filtration apparatus according to an embodiment of the present invention, at least two or more rotating blades are formed on a rotating shaft, and the rotating bar is sandwiched between neighboring rotating blades to allow accurate and stable rotation. do.

In the filtration apparatus according to an embodiment of the present invention, the rotary blade is formed in a shape in which a thin flat plate having a certain thickness is spirally wound around the rotary shaft, and two inclined surfaces are formed when the rotary blade winds the rotary shaft And each of the inclined surfaces is continuously formed so as to face the rotation axis.

In the filtration apparatus according to an embodiment of the present invention, each of the rotary blades is formed of one sloped surface and one linear surface on 360 degrees of the rotary shaft, and has a cut-off area between neighboring rotary blades, So that the rotating bar can pass through without interference.

In the filtration apparatus according to an embodiment of the present invention, when the rotating body is guided by the inclined surface and is rotated by a distance of a unit, the suction unit connected to the rotating plate and the driving shaft rotates by a distance over one end, And the arm rotates so as to communicate with the other inflow hole adjacent to the inflow hole in the inflow hole.

The present invention can obtain the following effects by the above-described embodiment, the constitution described below, the combination, and the use relationship.

A mesh net for filtering raw water in a frame formed by a cross member of a cross member and a vertical member intersecting the filter element is easily and firmly fixed to an upper cap and a lower cap so that a candle type ballast water filtration apparatus having high backwashing efficiency There is an effect to provide.

The present invention has an effect of providing a candle-type ballast water filtration device capable of preventing corrosion of dissimilar metals on a portion where the frame is joined with an upper plate, a lower plate, or other components by injection molding the frame with a plastic material .

The present invention is characterized in that when the flushing arm rotates between filter elements disposed on a concentric path, the rotational distance of the flushing arm is accurately measured by rotating the flushing arm through a mechanical method without directly transmitting the rotational force of the power means Type ballast water filtration device capable of controlling the flow rate of the ballast water.

The present invention is characterized in that the driving unit includes a rotating shaft for receiving power from the power means and a rotating body rotating in conjunction with the rotating shaft to rotate the rotating body in synchronism with the flushing arm, There is an effect of providing a candle-type ballast water filtering apparatus capable of accurately controlling the rotation distance of the flushing arm by causing the rotating body and the flushing arm to rotate synchronously so that the angle of rotation of the flushing arm is the same.

The angle of the linear surface of the rotary blade with the center of the rotary shaft is larger than the angle formed by the inclined surface with the center of the rotary shaft so that the time when the rotary blade is stationary is made longer than the time when it is in the rotary state, Type ballast water filtration apparatus having the above-described structure.

The present invention has the effect of providing a candle-type ballast water filtering apparatus capable of accurately and stably rotating the rotating body by forming at least two or more of the rotating blades.

The present invention provides a candle-type ballast water filtration apparatus that allows an operator to select an optimum control means according to the number of divisions of a rotating body, the thickness of a rotating shaft, the working environment, etc., It is effective.

The present invention is characterized in that the driving shaft includes a first driving shaft connected to the rotating plate and penetrating from the outside of the housing to the inside of the housing, a second driving shaft having one side connected to the first driving shaft and the other side connected to the suction unit, Type ballast water filtration device capable of transmitting the rotational force of the driving unit to the suction unit even if the center of the first drive shaft and the second drive shaft do not perfectly match with each other so as to include the first drive shaft and the second drive shaft, .

The present invention provides a candle-type ballast water filtration apparatus that improves airtightness through an automatic washing unit including an airtight portion so that backwash water of the suction unit does not leak to the outside of the housing along the driving shaft.

The present invention is characterized in that the airtight portion includes a rotor fixed to the drive shaft and rotating together with the drive shaft, and a stator fixed to the bottom plate of the housing and not engaging with the rotor and making a sliding surface with the rotor, There is an effect of providing a candle-type ballast water filtration device in which a plunging surface is closely adhered and no backwash water is leaked.

The present invention is characterized in that a rotator constituting the upper side of the airtight portion is supported by a support jaw of the drive shaft and a lock member constituting a lower side of the airtight portion is received to be seated on a lower cover fixed to the housing, Type ballast water filtering apparatus which is fixed so as not to deviate from the predetermined position.

The present invention provides a candle-type ballast water filtration apparatus including a discharge pipe sealing member for preventing backwash water from leaking at a position where the discharge unit is connected to the suction unit.

The present invention is characterized in that the backwash water flowing into the suction portion including the bushing at the connection position of the drive shaft and the suction portion and not flowing into the suction portion is not leaked to the connection portion between the suction portion and the drive shaft, There is an effect of providing a filtration device.

The present invention is characterized in that the filter unit is fixed by an engagement protrusion formed on the upper side of the housing on the upper side and fixed by a pressure contact protrusion formed on the lower side by protruding to the inside of the housing so as to press the side surface of the filter unit, Type ballast water filtering apparatus which can be fixed firmly in the housing and can be easily coupled to a predetermined position when the filter unit is assembled.

The present invention is characterized in that a positioning hole is formed on the upper side of the filter portion and a position setting mechanism is inserted through the positioning hole so that a position can be set so that the filter element and the flushing arm can be accurately communicated, There is an effect of providing a type ballast water filtration device.

The present invention is characterized in that it includes a buffer part having an elastic force capable of relieving the vibration transmitted to the filter part at a position where the filter part abuts against the housing cover so as to prevent the filter part from being broken or deviated from its fixed position due to vibration and impact Type ballast water filtration apparatus having the above-described structure.

The present invention is characterized by a lower cover lower portion which is coupled to the housing at a lower side of the housing while receiving the drive shaft and having a constant area around a portion where the drive shaft is inserted through the housing, Type ballast water filtration device that includes the lower core positioned below the hermetic portion and the drive shaft so that the hermetic portion and the drive shaft can be easily positioned and not deviated from the fixed position.

The present invention relates to a candle type ballast water filtration device capable of easily assembling and repairing the filtration device by forming a suction part to be seated in the housing and a discharge part to be inserted into the discharge part from the outside of the housing, .

The present invention has the effect of providing a candle-type ballast water filtration device which is easy to position and assemble and which is easy to disassemble when repairing, by allowing the filter portion to be seated on the latching jaw on the upper side of the housing.

1 is a cross-sectional view of a ballast water filtration apparatus using a conventional filter
Fig. 2 is a plan view showing the inner lower plate by cutting the lower part of the filtration apparatus of Fig.
Fig. 3 is a plan view showing a state in which the flushing arm of Fig. 2 is rotated
FIG. 4 is a cross-sectional view showing a process of overlapping the inflow hole of the lower plate and the suction space of the flushing arm for explaining a backwash process occurring when the flushing arm of FIG.
5 is a perspective view showing a candle type ballast water filtration apparatus according to the present invention.
Fig. 6 is a partially cutaway perspective view showing the inside of the filtration apparatus of Fig.
Fig. 7 is an exploded perspective view showing the filtration apparatus of Fig.
Fig. 8 is a cross-sectional view of the filtration apparatus of Fig. 5 taken along line AA
Fig. 9 is an enlarged view showing a portion B in Fig. 8
Fig. 10 is a plan view showing the control means of the driving unit of Fig.
Fig. 11 is a perspective view showing the rotary blade of Fig.
Fig. 12 is a perspective view showing another embodiment of the rotary blade of Fig. 9;
13 is a view for explaining a unit of rotation distance in the present invention
Fig. 14 is a graph showing a correlation between the rotational angle of the rotating shaft and the moving distance of the rotating body in Fig. 9
Fig. 15 is a perspective view showing the drive shaft of Fig.
Fig. 16 is a perspective view showing the bushing and inlet pipe of Fig.
17 is an enlarged view showing a portion C in Fig. 8
18 is an enlarged view showing a portion D in Fig.
19 is an enlarged view showing part E of Fig.
Fig. 20 is a perspective view showing the filter unit of Fig.
Figure 21 is a perspective view of the filter element of Figure 20;
Figure 22 is an exploded perspective view showing the filter element of Figure 20;
23 is a cross-sectional view taken along the vertical direction of the G and H portions of the filter element of Fig. 20
24 is a first reference drawing for explaining a method of using the position setting mechanism
25 is a second reference diagram for explaining a method of using the positioning mechanism
26 is an enlarged view showing a portion I in Fig. 25
Fig. 27 is an enlarged view showing a portion F in Fig. 8

Hereinafter, preferred embodiments of the candle type ballast water filtration apparatus according to the present invention will be described in detail with reference to the accompanying drawings. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS In the following description of the present invention, a detailed description of known functions and configurations incorporated herein will be omitted when it may make the subject matter of the present invention rather unclear. Unless defined otherwise, all terms used herein are the same as the general meaning of the term understood by those of ordinary skill in the art to which this invention belongs and, if conflict with the meaning of the terms used herein, And the definition used in the specification.

As described above, the present invention has the object and effect of improving the backwashing efficiency. In the present invention, the backwashing efficiency is such that the foreign matter contained in the raw water is filtered by the filter element 31 for a minimum time and frequency .

5 to 27, the candle type ballast water filtering apparatus according to an embodiment of the present invention includes a housing 1 having an inlet 11 and an outlet 14 through which the ballast water of a ship can flow, A filter unit 3 located in the housing 1 for filtering the raw water a introduced through the inlet unit 11 and an automatic washing unit 5 for washing foreign matter adhered to the filter unit 3 ).

The housing (1) constitutes the body of the candle type ballast water filtration apparatus according to the present invention. The housing (1) preferably has a filter portion (3) for filtering the ballast water therein, And may be formed into a cylindrical shape so as to be able to flow without being received. The housing 1 includes an inlet 11 through which ballast water taken in from the seawater flows and an inlet 11 through which the filter unit 3 and the automatic washing unit 5 are housed in the housing 1, An outlet 14 through which the filtered water b filtered through the filter unit 3 flows out and an outlet 14 through which the housing body 12 And a housing cover 15 which is coupled with a fixing screw or the like to cover the housing body 12 and shield it from the outside and prevent damage to various devices accommodated in the housing 1.

The inlet 11 is configured to receive the ballast water taken from the seawater and is preferably formed in a cylindrical shape on one side of the housing lower portion 122. As shown in FIGS. 2 and 3, the inlet 11 is located at the bottom of the ballast water filtration apparatus, so that the raw water a passing through the inlet 11 forms a sufficient hydraulic pressure while filling the lower housing 122 Filtered through the filter element 31, and then moved to the housing upper portion 121.

The housing body 12 includes a housing lower portion 122 where the raw water a flowing through the inlet portion 11 stays circulating on the inner wall before entering the filter portion 3, A housing upper portion 121 for receiving the filter portion 3 for filtering and backwashing the incoming ballast water and a housing body 121 for receiving the upper plate 32 in the housing body 12. [ And a pressure contact protrusion 124 protruding from the inner wall surface of the housing body 12 and pressing and fixing the side surface of the lower plate 33. [

The housing lower part 122 is formed below the lower plate 33 by the lower plate 33 in the housing 1 and the raw water a introduced through the inlet part 11 is connected to the filter part 3, Is preferably formed in a cylindrical shape so as to allow the raw water a flowing through the inlet 11 to flow along the inner wall without being subjected to a large resistance before entering the filter portion 3, . The lower plate 33 of the filter unit 3 to be described later is configured such that the filter element 31 penetrates therethrough and communicates with the lower portion 122 of the housing and the raw water a which has entered through the inlet 11 passes through the lower plate 33 ), The filter element 31 enters into the filter element 31 by the pressure difference. The housing lower part 122 includes a suction part 51 and a part of the driving part 52 and a discharge part 53. The discharge part 53 may be formed in a side- have.

The housing upper part 121 is configured to receive the filter part 3 for filtration and backwashing of the ballast water and is formed on the upper side of the lower plate 33 by the lower plate 33, So that the driving shaft 523, the suction unit 51, and the filter unit 3, which will be described later, can be introduced into the housing 1. The housing upper part 121 is shielded from the outside by the housing cover 15 so that the filtered water b filtered by the filter element 31 flows only to the outflow part 14. [

The stopping protrusion 123 is a step formed along the circumferential direction on the upper surface of the housing body 12. The upper plate 32 is seated on the stopping protrusion 123 so that the filter unit 3 So that it can be fixed inside the housing body 12.

9, the pressure contact protrusion 124 protrudes from the inner wall surface of the housing body 12 toward the inside of the housing body 12 at a portion where the housing body 12 and the lower plate 33 abut each other The lower plate 33 is mounted on the upper surface of the protrusion of the housing to press the side surface of the lower plate 33. When vibration or impact is applied to the lower plate 33, In the present invention, the pressure contact protrusions 124 are formed so that the pressure contact protrusions 124 contact the side surface of the lower plate 33 And a lower plate sealing member 335 is additionally provided between the lower plate 33 and the pressure contact protrusions 124 so that the upper portion 121 and the lower portion 122 of the housing are completely sealed.

The outflow portion 14 is configured such that the raw water a flowing into the filter element 31 from the lower plate 33 flows through the filter element 31 and the filtered water b flows therein, And is formed in a cylindrical shape on one side of the housing upper portion 121.

The automatic washing unit 5 is configured to wash the foreign substances adhered to the filter unit 3 and preferably to suck backward detergent containing foreign matter adhering to the filter unit 3, A driving part 52 connected to the suction part 51 to rotate the suction part 51 and a suction part 51 for receiving one side of the suction part 51 and being sucked from the suction part 51, And a hermetic portion 54 for preventing the source water a from leaking at a position where the drive shaft 523 is inserted into the housing 1. [

The driving unit 52 is connected to one side of the suction unit 51 and rotates the suction unit 51. The driving unit 52 generates power and rotates the driving shaft 523 to rotate the flushing body 512 and the flushing arm 511). The conventional driving unit 52 directly connects the power means 521 and the driving shaft 523 to transmit the rotational force produced by the power means 521 to the suction unit 51 through the drive shaft 523, 51) is rotated at a constant angular velocity. Therefore, as shown in FIGS. 2 and 3, the flushing arm 511 continuously rotates at a predetermined angular velocity on the lower surface of the lower plate 33. Therefore, as shown in FIG. 4, The time required to communicate with the element 31 is not long and the flushing arm 511 and the filter element 31 are matched with each other as shown in FIG. The backwashing was performed in a state in which the efficiency was remarkably low because there was only an extremely short time. Accordingly, in the present invention, the suction unit 51 is divided into a stop state and a rotation state, and the time can be easily adjusted, thereby improving the backwashing efficiency of the ballast water filtration apparatus. The driving unit 52 includes a power unit 521, a control unit 522, and a driving shaft 523.

The power unit 521 generates power to rotate the suction unit 51, and preferably a motor or the like can be used.

10, the control means 522 transmits the power generated from the power means 521 to the suction portion 51 through the drive shaft 523, and the rotation distance of the suction portion 51 A rotation speed, a stop state, a time in the rotation state, and the like, and includes a rotation shaft 5221, a rotation blade 5222, and a rotation body 5223. [

The rotating shaft 5221 is directly connected to the power means 521 and rotates by the power generated by the power means 521, and preferably has a long cylindrical bar shape. The rotating shaft 5221 rotates at a constant speed but the rotation of the rotating body 5223 and the driving shaft 523 is mechanically controlled according to the shape of the rotating blade 5222 to be described later, There is an advantage that the exercise can be controlled easily.

The rotary vane 5222 is fixed at a predetermined point of the rotary shaft 5221 and is formed along a predetermined circumference of the rotary shaft 5221. The rotary vane 5221 rotates together with the rotation of the rotary shaft 5221. The rotary vane 5222 has a straight surface 5222a protruding at right angles to the center axis of the rotary shaft 5221 when viewed from the upper side of the driving unit 5221, And an inclined surface 5222b projecting at an angle.

11, the rotary vane 5222 is formed by spirally winding a thin plate having a predetermined thickness on the rotary shaft 5221 so as to continuously contact the rotary body 5223 while the rotary vane 5222 rotates, Referring to FIG. 12, in another embodiment, each of the rotary blades 5222 has one inclined surface 5222b and one linear surface 5222a on 360 degrees of the rotation axis 5221 And has a disconnected region between neighboring rotating blades 5222. The disconnected region may be formed so that the rotating body 5223 can pass through without interference. This can be appropriately selected in consideration of the number of the rotating bodies 5223 or the thickness of the rotating shaft 5221 and the like.

The rotary vane 5222 may be formed by a single blade so as to guide the rotary motion of the rotary body 5223 as described later. Preferably, the rotary vane 5222 may include a plurality of blades, 5223, and by rotating the rotating body 5223 between the plurality of blades, the rotating body 5223 can be rotated more accurately.

The rotary vane 5222 rotates together with the rotary shaft 5221 to guide the rotary motion of the rotary body 5223. When the linear surface 5222a is in contact with the rotary body 5223 while rotating, When the inclined surface 5222b is in contact with the rotating body 5223, the rotating body 5223 is pivoted in an inclined direction, so that the rotating body 5223 is rotated. According to the combination of the straight surface 5222a and the inclined surface 5222b, the rotating body 5223 may rotate the unit of two units when the rotating blades 5222 make one rotation, And the time of the suction unit 51 in the stop state and the time in the rotation state may be adjusted according to the distance between the straight surface 5222a and the inclined surface 5222b.

14, the stopping state (d) in this specification means that the straight surface 5222a abuts on the rotating body 5223 so that the rotating body 5223 does not rotate, and the rotational force of the driving unit 52 Is not transmitted to the flushing arm 511 through the driving shaft 523 and therefore the flushing arm 511 stops in a state of being aligned with the inlet hole 331 to perform backwashing. The inclined surface 5222b is in contact with the rotating body 5223 so that the rotational force of the driving unit 52 is transmitted to the flushing arm 511 through the driving shaft 523 by the rotation of the rotating body 5223, Means that the arm 511 moves from the matching inlet 331 to the inlet 331 and is not backwashed.

At least two or more rotating blades 5222 are formed on the rotating shaft 5221 and the rotating body 5223 is sandwiched between adjacent rotating blades 5222 so that the rotating blades 5222 can rotate accurately and stably. The rotor 5223 can be rotated by guiding the rotor 5223 even though the rotating blades 5222 are formed on the rotating shaft 5221. However, as compared with the case where two or more blades are formed, It is not possible to accurately control the rotating blades 5223, so that the plurality of rotating blades 5222 are formed in the present invention.

When the half of the circumference of the rotating shaft 5221 is wound around the rotating blade 5222, a portion of the rotating blade 5222 that has a straight line A slope 5222b, and a straight surface 5222a, so that two slopes 5222b are formed along a circumference of 360 degrees. Therefore, at this time, when the rotary vane 5222 rotates one turn, the rotary body 5223 rotates by a distance of two units.

Referring to FIG. 13, the rotation of a unit distance in the present invention means that the inflow hole 331 of the lower plate 33 rotates by an angle formed by the other inflow hole 331 located immediately beside it. That is, the angle? When the rotating body 5223 rotates by one unit is controlled to be equal to the angle? At which the flushing arm 511 rotates the distance between the inflow holes 331. The number of divisions of the rotating body 5223 (the number of which the rotating bar 5223a is divided at a certain angle along the circumference of the rotating plate 5223b) must be equal to the number of the driving shaft 523 Is set to be equal to the number of the inflow holes 331 formed in one concentric circle centering on the center of the inlet holes 331.

The rotary vane 5222 of Fig. 11 will be described with reference to Fig. 14 (a). For convenience of explanation, it is assumed that the combination of the straight surface 5222a, the slope surface 5222b, and the straight surface 5222a is a rotary blade 5222 that occupies the circumference of the rotation axis 5221 equally by 60 degrees. When the rotary shaft 5221 rotates from 0 to 60 degrees, the linear surface 5222a abuts on the rotary body 5223, so that the rotary body 5223 does not rotate (stop state, d) The rotating body 5223 rotates by a unit distance (rotation state, e) at a point where the rotating body 5222b abuts against the rotating body 5220 at 60 to 120 degrees and 240 to 300 degrees.

The rotary vane 5222 may be formed in a spiral shape so as to cover only a part of the rotary shaft 5221. In this case, each of the rotary vanes 5222 may include one straight surface 5222a and one inclined surface 5222b . ≪ / RTI > Therefore, at this time, when the rotary vane 5222 rotates one turn, the rotary body 5223 rotates at a distance of one end.

The rotary vane 5222 of Fig. 12 will be described with reference to Fig. 14 (b). For convenience of explanation, it is assumed that the straight surface 5222a and the inclined surface 5222b occupy the circumference of the rotation axis 5221 by 90 degrees, and the remaining rotation angle of the rotation blade 5222 is 180 degrees. When the rotation shaft 5221 rotates from 0 to 90 degrees, the linear surface 5222a abuts against the rotation body 5223, so that the rotation body 5223 does not rotate (stop state, d) The rotating body 5223 rotates by a unit distance (rotation state, e) at 90 to 180 degrees at which the rotating blade 5222 abuts, and the rotating blade 5222 is disconnected from 180 to 360 degrees The rotating body 5223 does not rotate (stop state, d).

The rotating blades 5222 may include two embodiments as described above, so that the operator can select and apply the rotating blades 5222 according to the number of divisions of the rotating body 5223. [ The number of divisions of the rotating body 5223 should be set to be equal to or larger than the number of the inlet holes 331 formed through one concentric circle centering on the driving shaft 523, that is, the number of the filter elements 31 Since the thickness of the rotary shaft 5221 is limited due to restriction of space and the like, the length of the rotary blades 5222 formed along the rotary shaft 5221 is also limited. Therefore, The shape of the rotary vane 5222 can be selected.

The rotating blade 5222 rotates together with the rotating shaft 5221 so that the rectilinear surface 5222a and the inclined surface 5222b guide the rotating body 5223. When the rotating body 5223 rotates along the straight surface 5222a, The longer the time in which the suction unit 51 is in the stopped state. Therefore, by adjusting the length of the linear surface 5222a and the inclined surface 5222b by winding the rotation axis 5221, the time of the above-described stopping state is set longer and the time of the rotation state is set shorter, .

The rotary body 5223 is configured such that the rotary head 5223a-1 connected to the drive shaft 523 through the arm is divided at an angle along the circumference of the rotary plate 5223b, So that the rotational force of the rotating shaft 5221 is transmitted to the driving shaft 523. [ The rotating body 5223 includes a rotating bar 5223a and a rotating plate 5223b.

The rotating bar 5223a is configured to be in contact with the rotating blades 5222 and to be guided by the rotating blades 5222 and includes a rotating head 5223a-1 and an arm 5223a-2.

The rotation head 5223a-1 is located in a space between the rotation blades 5222 and is rotated about the drive shaft 523 by being guided by the rotation blades 5222. The rotation blades 5222a, It is preferable that the guide grooves are formed to have a constant size so as to be guided effectively by the guide grooves. When the rotary head 5223a-1 is in contact with the straight surface 5222a, the rotary blade 5222 does not interfere with the rotation, so that it does not rotate. However, when the rotary head 5223b is in contact with the slope surface 5222b, So that it is rotated in an oblique direction. Preferably, the rotary head 5223a-1 is guided by the rotary vane 5222 and rotates itself about the arm 5223a-2 to be easily guided by the rotary vane 5222 .

The arm 5223a-2 is configured to connect the rotating head 5223a-1 to the rotating plate 5223b so that the rotating plate 5223b can rotate together when the rotating head 5223a-1 rotates . When the arm 5223a-2 is formed to have the same thickness as the rotating head 5223a-1 and is connected to the rotating plate 5223b, the amount of the rotating body 5223 that can be installed at 360 degrees is reduced, .

The rotating plate 5223b is configured to rotate by receiving the rotating force of the rotating body 5223 by the arm 5223a-2. The driving shaft 523 is connected to the center of the rotating shaft 5223b so that the rotating plate 5223b rotates The drive shaft 523 rotates. Therefore, since the rotating body 5223 is connected to the suction unit 51 and the driving shaft 523, the rotating body 5223 and the suction unit 51 rotate synchronously. That is, as described above, in the present invention, the rotation angle of the rotating body 5223 is controlled to be equal to the rotation angle of the suction unit 51.

15, the driving shaft 523 is connected to the center of the rotating plate 5223b and rotates together with the rotating plate 5223b. The driving shaft 523 penetrates the inside of the housing 1 and the outside of the housing 1, And is connected to the flushing body 512 to transmit the power generated by the power unit 521 to the suction unit 51 as described above. The driving shaft 523 is connected to the flushing body 512 across the housing lower portion 122 and the backwash water c flows in the inlet pipe 514 surrounding the driving shaft 523, The center of the rotating plate 5223b and the center of the drive shaft 523 and the center of the flushing body 512 must be aligned in a straight line so that the power of the power unit 521 can be efficiently The center axis is deviated in the manufacturing process or the assembling process, and it is difficult to align the center of the assembling and repairing. Therefore, the drive shaft 523 of the present invention includes the first drive shaft 5231, the second drive shaft 5232, and the inter-shaft coupling member 5233, so that even if the central axes are not perfectly aligned and are shifted within a certain range, 52 to the suction unit 51 efficiently.

The first driving shaft 5231 has one side connected to the rotating plate 5223b and the other side passing through the bottom surface of the housing 1 and positioned inside the inlet pipe 514 of the lower housing 122 The second driving shaft 5232 is connected to the first driving shaft 5231 and the other is connected to the flushing body 512. The shaft coupling member 5233 is connected to the first driving shaft 5231, And the second driving shaft 5232 is connected to the first driving shaft 5231 and the second driving shaft 5232 by using the projections 5233a protruding in all directions from north to south, It is possible to smoothly rotate even though the central axis of the first drive shaft 5231 and the central axis of the second drive shaft 5232 do not perfectly coincide with each other and efficiently transmit the rotational force of the drive unit 52 to the suction unit 51 . Preferably, the drive shaft 523 may be a universal joint.

The suction unit (51) sucks backwash water containing foreign matter adhered to the filter unit (3). The suction unit 51 is connected to the driving unit 52 to be described later and is rotated by the driving force of the driving unit 52 to communicate with the respective filter elements 31 in a stationary state and a rotating state. 51 are much lower in pressure than the inside of the housing 1, so that the foreign matter adhered to the inner wall of the filter element 31 as a result of the filtration operation is dropped to the suction portion 51 by the differential pressure and the gravity. At this time, the filtered water b around the filter element 31 also flows into the filter element 31 by the differential pressure and is sucked into the suction part 51. This process is called backwashing and the backwash water c, To the outside. The suction unit 51 includes a flushing arm 511, a flushing body 512, a bushing 513, an inlet pipe 514, and a connection pipe 515.

The flushing arm 511 is formed at one end of the suction unit 51 and closely contacts the lower surface of the lower plate 33 and communicates with the filter element 31 to suck backwash water c. The backwash water c which is in turn communicated with the filter element 31 while rotating around the drive shaft 523 of the driving part 52 and contains foreign matter adhered to the inner wall of the filter element 31 by differential pressure, It is a cylindrical conduit inhaling. One end of the flushing arm 511 is connected to the flushing body 512 by being bent in the direction of the flushing body 512. Since the straight surface 5222a of the rotary vane 5222 is in contact with the rotating body 5223 and the rotating body 5223 does not rotate, the rotational force of the driving unit 52 is transmitted to the driving shaft 523 The rotating force of the driving unit 52 is not transmitted to the flushing arm 511 due to the rotation of the rotating body 5223 due to the contact between the rotating body 5223 and the inclined surface 5222b of the rotating blade 5222, Is transmitted to the flushing arm 511 through the driving shaft 523 and rotated by a distance of one unit so as to pass through the communicating filter element 31 to communicate with the filter element 31 adjacent thereto. Since the filter elements 31 are mounted on the inlet 331 of the lower plate 33 and are arranged at regular intervals on a concentric circle centering on the drive shaft 523, And may have the same number of flushing arms 511. Since the concentric circles have different diameters, the suction unit 51 also has flushing arms 511 having different lengths around the drive shaft 523. Therefore, the radius of the concentric circle and the length of the flushing arm 511 are formed to be the same.

The flushing arm 511 communicates with the respective filter elements 31 to receive the backwash water c when in a stopped state and rotates along a concentric circle to communicate with the next filter element 31 when in a rotating state, And the process of receiving the backwash water (c) is repeated. As will be described later, the time during the stop state and the time during the rotation state can be determined by the operator depending on the length of the straight surface 5222a and the inclined surface 5222b of the rotary vane 5222, It is preferable to make the time longer than the time when the stop state is the rotation state.

The flushing body 512 is configured to pass backwash water c sucked through the flushing arm 511 to be guided to the inlet pipe 514 and connected to the driving shaft 523 to transmit the rotational force to the flushing arm 511 A conduit is formed by communicating with the opposite end of the flushing arm 511 in which the filter element 31 is located and is fixed to the drive shaft 523 to transmit the rotational force of the drive shaft 523 to the flushing arm 511 .

Since the flushing body 512 is connected to the drive shaft 523 and rotates together with the drive shaft 523, the backwash water c introduced from the flushing body 512 is guided and stored temporarily 514 are fixed. When the inlet pipe 514 is rotated, the backwash water c in the inlet pipe 514 is leaked and mixed with the raw water a of the lower portion 122 of the housing. A bushing 513 is positioned between the flushing body 512 and the inlet pipe 514 to maintain the airtightness between the inlet pipe 514 and the flushing body 512.

16, the bushing 513 is configured to be fixed without rotating the draw pipe 514 without being affected by the rotation of the flushing body 512 connected to the drive shaft 523, A projection 5131, and a projection 5132.

The outer circumferential surface of the bushing body 5131 is in contact with the inner circumferential surface of the inlet pipe 514 and the inner circumferential surface of the bushing body 5131 is formed to have a short length that is in contact with the outer circumferential surface of the flushing body 512 And a projection 5132 protruding toward the outer side of the bushing body 5131 is formed at an upper side of the connection member. The protrusion 5132 is accommodated in the recessed groove 5141 so as to receive the protrusion 5132 at an angle equal to a predetermined angle at which the protrusion 5132 is formed in the inlet pipe 514, Is firmly coupled to the inlet pipe (514).

The outer surface of the bushing 513 is in close contact with the inlet pipe 514 and the inner circumferential surface of the bushing 513 is in close contact with the flushing body 512. Therefore, even if the flushing body 512 rotates, Do not rotate. The bushing 513 rotates at the inner surface of the bushing 513 while the flushing body 512 rotates and the backwashing water is discharged from the close contact portion of the inlet pipe 514, the bushing body 5131, (c) may be additionally included to prevent leakage.

 The hermetic member 5134 is positioned along the outer circumferential surface of the bushing body 5131 at a portion where the bushing body 5131 abuts the inlet pipe 514 and is connected to the bushing body 5131 and the inlet pipe 514 In order to prevent the backwash water (c) from leaking from the position, preferably an O-ring can be used.

The inlet pipe 514 is connected to the flushing body 512 by the bushing 513 and the other end is connected to the bottom plate of the housing 1 to receive the driving shaft 523 therein The flushing body 512 receives the backwash water c from the flushing body 512 and temporarily stores the flushing water c until the flushing body 512 exits the flushing body 512. The raw water a of the housing bottom 122 and the backwash water c are prevented from being mixed. The inlet pipe 514 may be welded to the lower inner wall surface of the housing 1.

The inlet pipe 514 may be coupled to the bushing 513 to be fixed by the bushing 513 without receiving the rotational force of the drive shaft 523. The inlet pipe 514 may be fixed to the bushing And a groove 5141 formed at the upper side of the drawing tube 514 at an angle equal to a predetermined angle at which the projection 5132 of the bushing 513 is formed so as to be coupled with the injection tube 514 to be coupled with the injection tube 514. The projection 5132 is received in the groove 5141 so that the bushing 513 is fixedly engaged with the inlet pipe 514 and the flushing body 512 is rotated on the inner surface of the bushing 513, The inlet pipe 514 can be maintained in a fixed state even if the body 512 rotates.

The connection pipe 515 is a short-length conduit protruding from one side of the inlet pipe 514 toward the outlet 53 and may be formed integrally with the inlet pipe 514 or may be formed as a separate conduit And may be connected to the inlet pipe 514. A discharge tube sealing member 532 to be described later may be positioned to prevent leakage of the backwash water c from the connection portion between the connection tube 515 and the discharge portion 53. [

17, the discharge unit 53 is configured to receive one side of the suction unit 51 and discharge the backwash water c sucked from the suction unit 51. The suction unit 51 And the backwash water c is discharged to the outside of the housing 1 through the side wall of the housing 1. The discharge portion 53 includes a discharge pipe 531 and a discharge pipe sealing member 532.

The discharge pipe 531 is a conduit through which the backwash water c flows and one side is connected to the connection pipe 515 and the other side is exposed to the outside of the housing 1 through the housing 1. When the backwash water (c) leaks from the connection portion between the discharge pipe (531) and the connection pipe (515), the raw water (a) stored in the lower housing portion 122 and the backwash water (c) So that the discharge tube sealing member 532 is positioned at the connecting portion.

The suction tube 51 and the discharge tube 53 are formed integrally with each other so that the discharge tube 531 is connected to the connection tube 515 in a detachable manner. There was a difficulty in inserting it into the inside. Therefore, in the present invention, the discharge pipe 531 is formed to be detachable from the suction unit 51 to facilitate assembly and repair.

The discharge tube sealing member 532 is located at a portion where the discharge tube 531 is connected to the connection tube 515 and is located along the outer peripheral surface of the discharge tube 531, Thereby preventing the backwash water c from leaking. Preferably, an O-ring or the like may be used.

18 and 19, the hermetic portion 54 prevents the backwash water c introduced through the suction portion 51 from leaking to the outside of the housing 1 along the drive shaft 523 And is preferably fixed to the bottom surface of the housing 1 around the driving shaft 523 to prevent the backwash water c from flowing out of the housing 1 along the driving shaft 523. [ The airtight portion 54 includes a rotor 541, a stator 542, a support plate 543, a bearing 543a, a lower cover 544, a lower core 547, a lock member 545, ).

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The rotor 541 surrounds the drive shaft 523 and is fixed to the drive shaft 523 and rotates together with the rotor 541. The rotor 541 is rotated downward by the restoring force of the spring S provided at the recessed portion, A rotor peristaltic ring 5412 which is brought into close contact with the stator 542 by a pressure of the rotor packing 5411 in close contact with the stator 542 and a spring S And a rotor case 5414 surrounding the rotor packing 5411 and the rotor perturbation ring 5412. The capping plate 5413 includes a cap plate 5413 for transferring the restoring force of the rotor packing 5411 to the lower portion of the rotor packing 5411,

The rotor packing 5411 is configured to press down the rotor perturbation ring 5412 downward by the restoring force of the spring S provided in the recessed portion. The driving shaft 523 is connected to the driving shaft 523a having a large diameter by forming a tapered supporting step 523c at right angles in the horizontal direction at a portion where the drive shaft 523b of a narrow diameter is in close contact with the upper surface of the rotor packing 5411 The upper surface of the rotor packing 5411 is vertically contacted with the jaw of the drive shaft 523 so that the upper surface of the rotor packing 5411 supports the lower surface of the drive shaft 523a of a larger diameter, And the axial direction inner peripheral surface is in close contact with the driving shaft 523b having a narrow diameter. The shape of the rotor packing 5411 as described above is such that the upward pressure of the spring transmitted through the rotor case 5414 is transmitted to the drive shaft 523a having a large diameter to support the rotor 541 by the reaction force And fixes and fixes the rotor 541 to the drive shaft 523b of a narrow diameter.

The rotor packing 5411 has a vertically sectioned depressed portion that is opened outward. When the cap plate 5413 is seated, the spring S holding the restoring energy is seated on the depressed portion.

The rotor peristaltic ring 5412 is in close contact with the stator 542 due to the pressure of the rotor packing 5411 so that the rotor peristaltic ring 5412 is in close contact with the stator 542. Preferably, And the cap plate 5413 tightly surrounds the close contact portion with the lower surface of the rotor packing 5411 and forms the interference surface with the stator 542. Although there is a very fine gap on the surface where the stator 542 and the rotor 541 are brought into contact with each other, moisture is generated in the gap between the stator 542 and the rotor 541. Also, even when the interference surface is worn, the rotor packing 5411 is extended downward by the restoring force of the spring S, and the entire length of the rotor 541 is restored, so that the gap of the interference surface is kept constant. The rotor packing 5411, the spring S, the cap plate 5413 and the rotor perturbation ring 5412 are sealed again by the rotor case 5414 to prevent water from being introduced into the interior.

The lower surface of the stator 542 is in close contact with the upper surface of the support plate 543, and preferably the upper surface of the stator 542 is fixed to the lower surface of the support plate 543. Preferably, And can be received and fixed in a recess formed in a shape complementary to the horizontal cross section of the stator 542 from the upper surface of the support plate 543 downward. Accordingly, the stator 542 is fixed to the support plate 543 and fixed to the drive shaft 523 without rotating.

The support plate 543 fixes the stator 542 and prevents the backwash water c in the inlet pipe 514 from leaking to the outside of the housing 1, Unlike the rotor 541, the stator 542 needs to be firmly fixed, so that the stator 542 is fixed through the support plate 543 in order to avoid the influence. A bearing 543a (see FIG. 18) may be added to the inside of the support plate 543 to prevent the rotational force from being reduced by the support plate 543 when the drive shaft 523 rotates.

The lower cover 544 is formed thicker than the thickness of the housing body 12 at a portion where the driving shaft 523 is inserted through the housing 1 to fix the components of the hermetic portion 54 And includes a lower cover upper portion 544a and a lower cover lower portion 544b.

The lower cover upper portion 544a is formed in a shape such that its central portion is complementary to the outer shape of the support plate 543 so that the support plate 543 can be received and screwed into the lower cover upper portion 544a And a hermetic member 548 for preventing leakage of the backwash water c may be positioned at the connection portion with the support plate 543 (see FIG. 18).

The lower cover lower portion 544b is configured to be screwed with the lower cover upper portion 544a at a lower side of the lower cover upper portion 544a and a certain space is formed between the lower cover upper portion 544a and the lower cover upper portion 544a, So that the lower core 547 can be positioned.

The lower core 547 is inserted into a space between the lower covers 544 to fix the hermetic portion 54 so as not to be detached from the fixed position. (547a).

The lock member 545 is configured to be coupled to the drive shaft 523 so as to abut the lower surface of the support plate 543 when the drive shaft 523 is coupled to the support plate 543. Preferably, 523 and is seated in the seating groove 547a of the support plate 543. [ Therefore, even if the rotor 541 is supported by the support step 523c on the upper side of the hermetic part 54 and is pushed downward by the elastic force of the inside of the rotor 541 on the lower side, And the drive shaft 523 coupled with the lock member 545 is not pushed so that the drive shaft 523 is fixed to rotate at the correct position. Preferably, the lock member 545 may be a nut that can be screwed to the drive shaft 523.

The pressing member 546 is located between the locking member 545 and the supporting plate 543 and repulsive to a force that is downwardly biased by the elastic force of the rotor 541 due to some elasticity, The pressing member 546 can be used as a washer.

20, the filter unit 3 is disposed in the housing upper part 121 and filters the ballast water flowing through the inlet part 11. The filter unit 3 preferably has a structure in which the driving shaft 523 of the driving unit 52, A top plate 32 for fixing the upper side of the filter element 31 and an upper plate 32 for fixing the upper side of the filter element 31. The filter element 31 has a plurality of conical filter elements 31, A support plate 34 positioned and supported between the upper plate 32 and the lower plate 33 to support the upper plate 32 and the lower plate 33; And a cushioning portion 35 for relieving the shock.

Referring to FIG. 21, the filter element 31 is configured to filter foreign substances having a predetermined size or more in the raw water (a), and is preferably a conical filter having a flat area expanded from the upper side to the lower side. The ballast water flowing through the inlet 11 enters the filter element 31 and is filtered and the filtered water b moves through the inside of the housing upper portion 121 and is discharged to the suction portion 51 The foreign matters adhering to the inner wall of the filter element 31 are separated while being introduced into the filter element 31 and discharged to the outside through the suction part 51. [ One or more of the filter elements 31 may be present and arranged along one or more concentric paths having different diameters about the drive shaft 523. The filter element 31 may include a frame 311, an upper cap 313, a lower cap 315, and a mesh network 317.

22, the frame 311 includes a cross member 311a formed in a circular shape and a vertical member 311b formed in a straight line. The mesh member 317 has a skeleton to provide. An upper cap protrusion 311c is formed on the upper side of the frame 311 so as to be coupled with the upper cap 313 and has an end thread formed thereon.

Since the frame 311 is formed by plastic injection molding of the horizontal member 311a and the vertical member 311b, since the filter element 31 has the shape of a body made entirely of metal, the top plate 32, There is a problem that corrosion occurs due to contact between dissimilar metals at a portion contacting the lower plate 33 or other components. Therefore, in the present invention, the frame 311 is injection- The mesh network 317 is overlaid on the frame 311 to solve the above problem. The upper cap protrusion 311c is made of a metal material for the purpose of engaging the upper cap protrusion 313 and the upper cap 313 is made of a metal material having a portion contacting the upper cap protrusion 311c So as to include an insert 313a having a metal thread.

The upper cap 313 is coupled to the upper side of the frame 311 to fix the mesh net 317 and is coupled to the insertion hole 321 of the upper plate 32 to be described later, So that it can be fixed inside the housing (1).

The lower cap 315 is coupled to the lower side of the frame 311 to fix the mesh net 317 and is seated on the inflow hole 331 of the lower plate 33 to be described later, So that it can be fixed inside the housing (1). The frame 311 may be mounted on the lower cap 315 or may be threaded on the lower side of the frame 311 to engage with the lower cap 315.

The mesh network 317 is configured to filter foreign substances contained in the raw water a flowing into the lower side of the filter element 31 and may have any material and mesh size as long as it can perform the function.

23, when the frame 311 is coupled with the upper cap 313 and the lower cap 315, a certain space is formed outside the frame 311, and the mesh net 317 is positioned in the space . Accordingly, the mesh net 317 is firmly fixed to the outside of the frame 311 by the upper and lower caps 313 and 315, so that the conical shape is maintained. It is possible to additionally include an adhesive means in the space so that the mesh net 317 may be more firmly fixed to the frame 311, and the adhesive means may preferably use an epoxy. The mesh network 317 may be fixed to the frame 311 so as to surround the outer surface of the frame 311 and fit into the frame 311 from above the frame 311 And may be coupled with the frame 311.

The upper plate 32 forms an upper surface of the filter unit 3 and is configured to seal the upper portion of the housing 1. The upper plate 32 covers the upper part of the housing 1, (B) of the filter unit 3 housed in the filter unit 3 is isolated from the outside. The upper plate 32 is seated on the latching jaw 123 (see FIG. 8), and the housing cover 15 is coupled to the upper plate 32 to assemble the filtration apparatus. The top plate 32 also includes an insertion hole 321, a positioning hole 323, and a cover 325 (see FIG. 20).

The insertion hole 321 is formed at a position opposite to the inlet hole 331 of the lower plate 33 to receive the upper cap 313 of the filter element 31, Is formed to have a size that is equal to or slightly larger than the size of the upper cap 313 so as to be fixed.

The position setting hole 323 is formed such that a part of the insertion hole 321 is formed to be larger than the insertion hole 321 so that a positioning mechanism 7 to be described later can be introduced into the filter portion 3 And is covered by the lid 325. As shown in Fig. Preferably, one of the insertion holes 321 formed in the concentric circles of the insertion holes 321 formed along the concentric circles having different diameters may be formed by the positioning holes 323.

24, after assembling all the components of the filtration apparatus, the lid 325 is opened and the filter element 31 is taken out through the positioning hole 323, and the positioning hole 323 The position setting mechanism 7 is inserted.

The positioning mechanism 7 includes a handle 71 inserted from the upper side of the housing 1 and elongated to a length enough to pass through the filter unit 3 and a handle 71 formed at one end of the handle 71 An insert portion 72 having the same profile as the profile of the inner wall surface of the inflow hole 331 and the flushing arm 511 and a protrusion portion 72 protruding outward from a connection portion between the handle 71 and the insert portion 72, And a stopper 73 formed to be wider than the width of the inflow hole 331 to limit the degree of insertion of the insert portion 72.

25, the positioning mechanism 7 inserted into the positioning hole 323 is pushed by the insert portion 72 until the stopper 73 restricts the insertion of the positioning mechanism 7 The center of the inflow hole 331 and the center of the flushing arm 511 are matched with each other.

Referring to FIG. 26, in this specification, the term " matching " means that a hole opened on the upper surface of the flushing arm 511 is positioned so as to completely cover the inflow hole 331. [ When the above process is completed, the filter element 31 is seated again, the lid 325 is covered, and then the housing cover 15 is coupled to complete the assembly of the filtration device. As a result, the flushing arm 511 and the lower surface of the filter element 31 are matched to each other, thereby improving the backwashing efficiency. As described later, the flushing arm 511 is rotated by the driving unit 52, It becomes possible to exactly match the inlet hole 331 adjacent to the inlet hole 331 when moving from one inlet hole 331 to the adjacent inlet hole 331.

The lower plate 33 is configured to receive the lower cap 315 of the filter element 31 and to separate the housing 1 into a housing upper portion 121 and a lower housing portion 122, B of the housing upper portion 121 and the raw water a of the housing lower portion 122 from being mixed in the housing 1. [ 9, the lower plate 33 is firmly fixed in the housing 1 because the lower surface of the lower plate 33 is in contact with the side surface of the pressure contact projection 124, and the lower plate sealing member 335 completely fills the housing upper portion 121 Remove housing bottom 122. The lower plate 33 includes an inflow hole 331, a receiving groove 333, and a lower plate sealing member 335.

The inflow hole 331 is formed at a predetermined distance along a concentric circular path having a predetermined diameter around the drive shaft 523. The inflow hole 331 is formed in the housing lower portion 122 through the inflow hole 331 The raw water (a) to be stored is introduced into the filter element (31). However, the filtered water b which is not stored in the filter element 31 can not be introduced into the inflow hole 331 communicated with the flushing arm 511 by the flushing arm 511, The backwashing water c flows out from the backside of the filter element 31 by backwashing.

The raw water a is filtered only through the filter element 31 through the inflow hole 331 and the filtered water b is filtered through the inflow hole 331. Therefore, When the suction unit 51 to be described later rotates about the drive shaft 523 and communicates with one inlet hole 331 and the filter element 31 on each concentric path while flowing through the housing upper part 121, (31) and is discharged through the suction unit (51) while performing backwashing.

The inflow hole 331 is formed to penetrate the lower plate 33 in a direction opposite to the insertion hole 321. The flushing arm 511 rotates in a concentric circle from the lower side of the inflow hole 331, So as to communicate with the filter element 31 disposed along the concentric circle.

9, the receiving groove 333 is a groove that is drawn in the circumferential direction along the side surface of the lower plate 33. The lower plate sealing member 335 is fitted into the receiving groove 333, The filtration water b stored in the housing upper portion 121 and the raw water a stored in the housing lower portion 122 are not mixed with each other.

The support member 34 supports the upper plate 32 and the lower plate 33 (refer to FIG. 20). Since the filter element 31 alone may be difficult to withstand the pressure applied to the filter unit 3, The skeleton of the filter unit 3 is firmly formed by joining the supporter 34 between the upper plate 32 and the lower plate 33 so as to bear the pressure and at the same time the insertion hole 321 of the upper plate 32, The center of the inflow hole 331 of the lower plate 33 and the center of the filter plate 31 can be prevented from being displaced from the predetermined position.

27, the buffer 35 is fixed to the upper plate 32 to relieve vibrations and shock transmitted from the housing cover 15 to the filter unit 3, and includes a pressing member 351 ), Elastic means (353), and support member (355). In the conventional filtration device, since the housing cover 15 and the upper plate 32 are in direct contact with each other, the external impact is transferred to the filter as it is, and the internal structure of the housing 1 is broken, Often occurred. Further, if the upper plate 32 is made thick, the cavity of the housing body 12 and the housing lid 15 may be widened to cause leakage of the filtered water. If the upper plate 32 is thinned, there was. Therefore, in the present invention, it is not necessary to increase the thickness of the upper plate 32 for durability by providing the buffering portion 35 including the elastic means 353 between the housing lid 15 and the upper plate 32, Even if the upper plate 32 is made somewhat thinner, impact and vibration can be absorbed and alleviated through the buffering portion 35.

The urging member 351 is configured to directly abut the lower surface of the housing lid 15 and is urged downward by impact and vibration transmitted from the housing lid 15 and is urged backward by the elastic force of the elastic means 353 And is raised upward. (Pressure) acting between the housing cover 15 and the elastic means 353. The pressing member 351 includes a head 351a, a step 351b, and a body 351c.

The head 351a is configured to abut the lower surface of the housing cover 15 and the step 351b has a structure in which the elastic means 353 abuts against the lower surface thereof to support the elastic means 353 And the body 351c is inserted into the space formed by the elastic means 353 so that the pressing member 351 can be engaged with the elastic means 353. [

The elastic means 353 accommodates the pressing member 351 and absorbs the vibration transmitted by the pressing member 351, and preferably a spring can be used.

The supporting member 355 receives the pressing member 351 and the elastic means 353 and is configured to be able to be fixed to the upper plate 32. The upper case 355a and the lower case 355b And a case 355b. The upper case 355a may be inserted into an upper side of the upper plate 32 to be seated in a groove formed in the upper plate 32 and the lower case 355b may be formed in a lower side of the upper plate 32 And may be formed to be threadably engaged with the upper case 355a.

The cushioning part 35 first inserts the upper case 355a into the upper plate 32 and then inserts the pressing member 351 into the lower side of the upper case 355a and presses the body 351c The upper case 355a is tightly coupled to the upper plate 32 by threadably coupling the lower case 355b to the upper case 355a. Therefore, when the housing lid 15 presses the pressing member 351, the elastic means 353 located below the pressing member 351 is pressed downward. Since the lower surface of the elastic means 353 is supported by the support member 355, the pressing member 351 is pushed upward by the elastic force of the elastic means 353 so that the pressure by the housing lid 15 can be canceled do.

The above-described filtration apparatus according to the present invention employs a structure in which a conventional filtration apparatus can be easily assembled to overcome the disadvantage that the structure is complicated and difficult to assemble. However, due to the structural problems of the filtration device, a description of such components as simply added or coupled may be omitted for the sake of convenience.

The filtration apparatus comprises a housing 1 having an inlet 11 and an outlet 14 through which the ballast water can flow in and out of the vessel and constitutes the body of the filtering apparatus, A hermetic portion 54 for preventing the backwash water c from flowing out of the housing 1 along the driving shaft 523 by inserting the driving shaft 523 therethrough; And a filter unit (3) located inside the housing (1) and filtering the raw water (a) introduced through the inlet (11), wherein the automatic washing unit (5) (5) comprises a suction unit (51) which is located inside the housing (1) and sucks backwash water containing foreign matters adhered to the filter unit (3) from below the filter unit (3) A driving unit 52 located at a lower portion of the housing 1 and rotating the suction unit 51 mechanically, And a discharge unit 53 for receiving one side of the suction unit 51 and discharging the backwash water c sucked from the suction unit 51 to the outside of the housing 1.

First, since the driving shaft 523 penetrates the inside and the outside of the housing 1 from the bottom surface of the housing 1 as described above, it is necessary to prevent the backwash water (c) from flowing out have. Therefore, the driving shaft 523 is coupled from the upper surface of the housing 1 through the supporting plate 543 after the supporting plate 543 is screwed. At this time, the drive shaft 523 is in a state where the first drive shaft 5231 and the second drive shaft 5232 are coupled by the shaft coupling member 5233. And the airtight portion 54 is engaged with the driving shaft 523b of a narrow diameter. Since the lock member 545 is screwed to the surface of the drive shaft 523 which is exposed through the support plate 543 and exposed to the outside of the housing 1, It can be grasped exactly.

Secondly, the drive shaft 523 is coupled to the center of the rotary plate 5223b so that the drive shaft 523 can transmit the power generated by the power means 521 to the suction unit 51, and the rotary blades 5222 And the rotating body 5223 are brought into contact with each other, and then the rotating shaft 5221 and the power means 521 are connected. Therefore, the power produced by the power means 521 is transmitted to the drive shaft 523 through the rotating shaft 5221, the rotating blades 5222, the rotating body 5223, the arm 5223a-2, and the rotating plate 5223b.

Third, the driving shaft 523 and the suction unit 51 are connected. The inlet pipe 514 is positioned to surround the drive shaft 523 and the flushing body 512 is connected to the inlet pipe 514. The bushing 513 is positioned to prevent the backwash water c from leaking from the connecting portion between the inlet pipe 514 and the flushing body 512. The bushing 513 protrudes from the bushing body 5131, The formed projection 5132 is seated in the groove 5141 of the draw pipe 514 and packed to enclose the bushing 513 and the draw pipe 514. Therefore, even if the driving shaft 523 and the flushing body 512 rotate, the inlet pipe 514 can be fixed without rotating, and the backwash water c can be prevented from leaking. The discharge unit 53 is connected to the connection pipe 515 protruding from one side of the inlet pipe 514. At this time, a drain pipe sealing member 532 is disposed at a joint portion between the discharge pipe 531 and the connection pipe 515 to prevent leakage of the backwash water c.

Fourth, the filter unit 3 is positioned on the housing upper part 121 above the suction unit 51. The filter unit 3 seats the filter element 31 on the inflow hole 331 of the lower plate 33 and joins the upper plate 32 together with the support stand 34. The filter element 31 is completed by fixing the mesh net 317 to the frame 311 and fixing the mesh net 317 to the upper and lower caps 313 and 315. A lower plate sealing member 335 is coupled to the receiving groove 333 of the lower plate 33 to completely separate the upper housing part 121 and the lower housing part 122 from each other. Since the side surface of the lower plate 33 is pressed by the pressure contact protrusion 124 of the housing 1 and the upper plate 32 is seated in the latching protrusion 123 of the housing 1, (3) can be positioned exactly where it should be located. At this time, the lower surface of the lower plate 33 and the flushing arm 511 are brought into close contact with each other. Also, the shock absorber 35 may be coupled to the upper plate 32 to mitigate or cancel external shocks and vibrations transmitted from the housing lid 15 to be coupled in the following process.

Finally, the lid 325 covering the positioning hole 323 of the upper plate 32 is removed and the filter element 31 provided in the positioning hole 323 is once removed, The setting mechanism 7 is inserted so that the flushing arm 511 and the inflow hole 331 are aligned with each other. Since the suction unit 51 also rotates by one unit when the rotating body 5223 rotates by one unit in the filtration apparatus, the initial start position must match the flushing arm 511 and the inlet hole 331, The arm 511 can be matched with exactly the other inflow holes 331 in the subsequent process. The filter element 31 is joined again and the housing cover 15 is screwed to cover the cover 325 and cover the top plate 32 to complete the assembly of the filtration apparatus.

The process of filtration and backwashing using the filtration apparatus of the present invention will be described in detail. The assembly is completed through the above-described process.

The raw water a is introduced into the inlet portion 11 through the cylindrical lower portion 122 of the housing 122 to fill the lower portion 122 of the housing with a sufficient water pressure to reach the vicinity of the lower plate 33, And enters the filter element 31 through the inflow hole 331 of the lower plate 33 by a pressure difference.

The raw water a that has entered the filter element 31 passes through the mesh net 317 and is filtered to be filtered water b to be stored in the housing upper part 121. The filtered water b which is filled with the upper part 121 of the housing and flows upward flows out of the housing 1 through the outlet part 14 formed on one side of the housing upper part 121, do.

The raw water a passes through the filter element 31 and foreign matter is filtered and foreign substances gradually get caught in the mesh net 317. Therefore, it is necessary to continuously clean the filter element 31 to improve filtration efficiency. Therefore, backwashing is performed.

The flushing arm 511, the inflow hole 331 and the filter element 31 are matched at an initial starting point and the pressure of the suction portion 51 and the discharge portion 53 is much higher than that of the inside of the housing 1 The foreign matter adhering to the inner wall of the filter element 31 as a result of filtration operation is dropped to the suction part 51 by the differential pressure and the gravity. That is, the filtered water b flowing through the housing upper portion 121 flows into the filter element 31 communicating with the suction portion 51 and the discharge portion 53 through the inlet hole 331, As shown in Fig. As a result, the backwash water (c) containing the foreign substances is discharged to the outside of the housing (1) through the suction part (51) and the discharge part (53).

As described above, the flushing arm 511 rotates together with the driving unit 52 according to the rotation of the driving unit 52, and backs up the plurality of filter elements 31 in the filtration apparatus for a predetermined time. The power produced by the power means 521 rotates the rotating shaft 5221 and the rotating blades 5222 coupled to the rotating shaft 5221 guide the rotating body 5223 to rotate the driving shaft 523, And this process is as described above. The flushing arm 511 rotates so as to communicate with the filter element 31 adjacent thereto from the backwashing filter element 31 and repeats the backwashing process.

 According to the present invention, when the flushing arm 511 rotates between the filter elements 31 disposed on the concentric path, the rotational force of the power means 521 is not directly transmitted to the flushing arm 511, The rotation distance of the flushing arm 511 can be accurately controlled.

The rotary vane 5222 includes a straight surface 5222a and an inclined surface 5222b so that when the straight surface 5222a is in contact with the rotating body 5223, a rotational force is not transmitted to the flushing arm 511 When the inclined surface 5222b is in contact with the rotating body 5223, a rotational force is transmitted to the flushing arm 511 so that the adjacent filter element 513 is rotated. The length of the straight surface 5222a and the inclined surface 5222b can be used to effect backwashing by adjusting the time of the stop state and the rotation state.

Since the driving shaft 523 includes the first driving shaft 5231, the second driving shaft 5232 and the shaft coupling member 5233, the centers of the first driving shaft 5231 and the second driving shaft 5232 perfectly match The rotational force of the driving unit 52 can be transmitted to the suction unit 51. [

The filtration apparatus also includes a filtering unit 3, an automatic washing unit 5, and components for sealing the coupling parts of the respective components, so that raw water a, b) and the backwash water (c) were not mixed with each other.

The foregoing detailed description is illustrative of the present invention. In addition, the foregoing is intended to illustrate and explain the preferred embodiments of the present invention, and the present invention may be used in various other combinations, modifications, and environments. That is, it is possible to make changes or modifications within the scope of the concept of the invention disclosed in this specification, within the scope of the disclosure, and / or within the skill and knowledge of the art. The embodiments described herein are intended to illustrate the best mode for implementing the technical idea of the present invention and various modifications required for specific applications and uses of the present invention are also possible. Accordingly, the detailed description of the invention is not intended to limit the invention to the disclosed embodiments. It is also to be understood that the appended claims are intended to cover such other embodiments.

1: Housing
11:
12: housing body
121: housing upper part
122: Lower housing
123: hanging jaw
124:
14:
15: housing cover
3:
31: Filter element
311: frame 311a: transverse member 311b: vertical member 311c: upper cap projection
313: upper cap 313a: insert
315: Lower cap
317: mesh network
32: upper plate 321: insertion hole 323: positioning hole 325: cover
33: lower plate 331: inflow hole 333: receiving groove 335: lower plate sealing member
34: Support
35: buffer
351: pressing member 351a: head 351b: step 351c: body
353: Elastic means
355: Support member 355a: Upper case 355b: Lower case
5: Automatic cleaning unit
51:
511: Flushing arm
512: Flushing body
513: bushing 5131: bushing body 5132: projection 5134: airtight member
514: Inlet tube 5141: Home
515: Connector
52:
521:
522:
5221: rotating shaft 5222: rotating blade 5223: rotating body
5223a: rotating bar 5223b: rotating plate
5223a-1: rotating head 5223a-2: arm
5222a: straight surface 5222b: inclined surface
523: drive shaft 5231: first drive shaft 5232: second drive shaft
5233: inter-axis coupling member 5233a: projection
523a: drive shaft with a large diameter 523b: drive shaft with a narrow diameter
523c:
53:
531: discharge pipe
532: discharge tube sealing member
54:
541: rotor
5411: Rotor packing
5412: rotor perturbation ring 5413: cap plate
5414: Rotor case
542: stator 5421: stator perturbing ring 5422: stator packing
543: Support plate 543a: Bearing
544: Lower cover
544a: Lower cover upper part 544b: Lower cover lower part
545: Nuts
546: Washer
547: Lower core
547a: seat groove
548: sealing member
7: Positioning mechanism
71: Handle
72: insert part
73: Stopper
a: enemy
b: filtrate
c: Backwash water
d: Suspended state
e: Rotational state

Claims (15)

A housing which has an inlet portion and an outlet portion through which the ballast water of the ship can flow in and out and is divided by a lower plate into an upper housing portion and a lower housing lower portion; and a filter portion located above the housing and filtering the ballast water flowing through the inlet portion. And an automatic cleaning unit for cleaning the foreign substance adhered to the filter unit,
Wherein the filter portion includes at least one filter element positioned along a concentric path around the drive shaft of the driving portion and capable of filtration and backwashing,
The automatic washing unit includes a suction unit for sucking backwash water including a foreign matter adhered to the filter unit, the driving unit being located at a lower portion of the housing and mechanically rotating the suction unit; And a discharge unit for discharging the backwash water sucked from the suction unit to the outside of the housing,
Wherein the filter element comprises a frame formed by intersecting a plurality of crosspieces and a plurality of longitudinal members, an upper cap fitted on the upper side of the frame, a lower cap fitted on the lower side of the frame and engaged with the lower plate, And a mesh net secured to the frame by the lower cap and filtering raw water flowing from the inflow hole of the lower plate,
The frame includes an upper cap projection made of a metal material, injection molded using a plastic material, and having a screw thread formed on an upper surface thereof so as to be coupled to the upper cap,
Wherein the upper cap includes an insert having a thread of a metal material on an inner surface contacting the upper cap projection, wherein the filter element is capable of preventing corrosion between dissimilar metals. delete delete delete The method according to claim 1,
Wherein the lower plate comprises a plurality of through holes formed along the concentric path so that the filter element can be seated,
Wherein the suction portion includes at least one flushing arm that rotates about the drive shaft by the drive portion and communicates with each filter element on the concentric path of the filter portion to receive backwash water,
Wherein the foreign matter adhering to the filter element is backwashed using filtered water when the flushing arm, the inflow hole, and the lower side of the filter element are communicated with each other. One candle type ballast water filtration device. 6. The method of claim 5,
The driving unit includes power means for generating power,
And a control means for mechanically controlling the rotation of the suction portion by receiving the power from the power means to perform backwashing. The candle type ballast water filtration device equipped with the filter element capable of preventing corrosion between dissimilar metals . The method according to claim 6,
Wherein the control means includes a rotating shaft for receiving power from the power means and a rotating body rotating in conjunction with the rotating shaft, wherein the rotating body is connected to the suction portion, and the rotating body and the suction portion are rotated in synchronization with each other A candle type ballast water filtration system equipped with a filter element to prevent corrosion between dissimilar metals. 8. The method of claim 7,
Wherein the rotating body includes a rotating bar divided into a plurality of portions at a predetermined angle along a circumference of the circumference and an angle between neighboring rotating bars is substantially equal to an angle between adjacent inflow holes of the lower plate. Candle type ballast water filtration device equipped with filter element that can prevent. 9. The method of claim 8,
Wherein the control means includes a rotary blade formed along a predetermined circumference of a rotary shaft, and the rotary blade is sandwiched between adjacent rotary bars to transmit rotation force of the rotary shaft to the rotary body to rotate the rotary body. A candle type ballast water filtration system equipped with a filter element to prevent intercalation corrosion. 10. The method of claim 9,
Wherein the rotary vane includes a straight surface formed in a direction perpendicular to the center of the rotary shaft and an inclined surface inclined at a center of the rotary shaft. When the rotary bar is in contact with the straight surface and the rotary body is in a stopped state, Wherein the flushing arm of the suction unit covers the inflow hole to generate backwash when the flushing arm of the suction unit is in a stopped state. 11. The method of claim 10,
Type ballast water filtration device having a filter element capable of preventing corrosion between dissimilar metals, characterized in that the angle formed between the straight surface of the rotary blade and the center of the rotary shaft is greater than the angle formed between the straight surface of the rotary blade and the center of the rotary shaft. 12. The method according to any one of claims 9 to 11,
Wherein at least two or more rotating blades are formed on the rotating shaft, and the rotating bar is sandwiched between adjacent rotating blades so as to be able to rotate accurately and stably. Candle type ballast water filtration device installed. 12. The method of claim 11,
Wherein the rotary blades are formed in a shape in which a thin flat plate having a predetermined thickness is spirally wound around the rotary shaft, two inclined surfaces are formed when the rotary blades are wound around the rotary shaft one by one, and each of the inclined surfaces is continuously Type ballast water filtration device having a filter element capable of preventing corrosion between dissimilar metals. 13. The method of claim 12,
Each of the rotary blades has a sloped surface and a straight surface on 360 degrees of the rotary shaft and has a cut-off area between neighboring rotary blades. The cut-off area allows the rotary bar to pass through without interference. Type ballast water filtration device equipped with a filter element capable of preventing corrosion between different metals. 11. The method of claim 10,
When the rotating body is rotated by a distance of one unit as guided by the inclined surface, the suction portion rotates by a distance of one unit, and the flushing arm rotates so as to communicate with the other inflow holes adjacent to the inflow hole in the inflow hole Type ballast water filtration device equipped with a filter element capable of preventing corrosion between different metals.

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