KR101303655B1 - A Ballast Water Filter Equipment having compact and enhanced operating efficiency - Google Patents

Abstract

The present invention relates to a filtration apparatus for treating ballast water by a filtration method, and in particular, in the ballast water filtration apparatus, in consideration of a special installation environment of a filtration apparatus mounted on a vessel, filter backwashing among the components concentrated on the filtration apparatus. By discharging the discharge part and the back washing line for the discharge of afterwards to the lower part of the filtration device, it is possible to simplify the structure and reduce the space for the installation of the upper part of the filtration device, as well as to support the filtration device. The compact space can be compacted by utilizing the lower space existing between the devices, and can be efficiently managed by integrating the foreign substance discharge and back pressure management of the filtration unit, and also prevents damage to the device and ensures durability. The present invention relates to a ballast water filtration device for improving operability.

Description

Ballast Water Filter Equipment having compact and enhanced operating efficiency

The present invention relates to a filtration apparatus for treating ballast water by a filtration method, and in particular, in the ballast water filtration apparatus, in consideration of a special installation environment of a filtration apparatus mounted on a vessel, filter backwashing among the components concentrated on the filtration apparatus. By discharging the discharge part and the back washing line for the discharge of afterwards to the lower part of the filtration device, it is possible to simplify the structure and reduce the space for the installation of the upper part of the filtration device, as well as to support the filtration device. The compact space can be compacted by utilizing the lower space existing between the devices, and can be efficiently managed by integrating the foreign substance discharge and back pressure management of the filtration unit, and also prevents damage to the device and ensures durability. The present invention relates to a ballast water filtration device for improving operability.

Ballast water means seawater filled in the ballast tanks in order to maintain the balance of the ship when the ship is operated without luggage.

With the increase of international trade volume, the marine transportation ratio is increasing, and as the number of vessels increases and the size of vessels increases rapidly, the volume of ballast water used by vessels is greatly increasing. As the amount of ballast water used in vessels increases, the number of cases of harms caused by marine ecosystems due to foreign marine species is also increasing. In order to solve these international environmental problems, the International Maritime Organization (IMO) The International Convention on the Control and Management of Ballast Water and Sediments of Ships has been completed, and a new ballast water treatment system has been installed on ships newly constructed from 2009.

Conventionally, a method for treating ballast water has been a method of exchanging ballast water at sea or treating it on land. However, there is an inefficient disadvantage, and a method of installing a ballast water treatment facility in a ship has been widely used. In particular, the filtration method using a filter is mainly used as a treatment method used in a ballast water treatment facility. As the size of a large vessel increases, the necessity of treating a large amount of ballast water increases in large vessels, and accordingly, a large amount of ballast water Ballast water filtration device that can treat the is used.

1 is a side view of a conventional ballast water filtration device.

However, the conventional ballast water filtration device, as shown in Figure 1, the drive unit for driving the backwashing device for backwashing the filtration unit included in the filtration device (a) as well as the discharge portion for discharging the foreign matter after backwashing Since both (b) and its piping line (c) have a structure concentrated on the upper part of the filtration device, the work is cumbersome during installation, replacement and dismantling due to the mixing of the above components, especially in a special environment such as a ship. Considering that the space where the filtration device is installed is also very narrow (a space such as a machine room is relatively narrowly designed to secure a space for a ship's unique purpose), the space above the filtration device is very narrow. In the structure in which the components are concentrated on the upper part of the filtration device, there is a problem inevitably increasing maintenance difficulty.

In addition, as each component of the filtration device is concentrated on the upper part of the filtration device, the upper space required for installation and dismantling of the filtration device must also increase, so that a separate upper space for the filtration device must be secured in a special environment called a ship. There is also a problem that causes an inefficient spatial structure.

In particular, due to the discharge portion (b) located above the filtration device and its piping line (c), it is more difficult to easily discharge the foreign matters and problems of back pressure during the back washing process, and the pipe moves from the upper side to the lower side again. As a result, there is a problem of pipe loss and area increase.

In addition, in the conventional filtration apparatus, in the process of backwashing the filtration unit, there is a lack of means for fundamentally preventing the components used in the backwashing apparatus from colliding with each other. There is no technical configuration to solve the problem, the problem caused by the ballast water which is left inside the filtration device during the stoppage, or the problem related to the airtightness of the filter to prevent the unfiltered ballast water from leaking. .

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

An object of the present invention is to disperse the discharge portion and the back washing line for discharging the foreign matter after the filter backwashing in consideration of the special installation environment of the filtration device mounted on the vessel to the bottom of the filtration device By simplifying the structure and reducing the space for installing the upper part of the filtration device, as well as providing a compact and operable ballast water filtration device that can efficiently manage foreign matter discharge and back pressure management of the filtration unit. will be.

It is another object of the present invention to prevent damage to the device and to improve durability, including dual triple related components which can prevent the automatic washing part components moving in and out of the filter unit in the filtration unit from being bumped and damaged in advance. It is to provide a ballast water filtration device to increase the compact and operable.

Still another object of the present invention is to provide a ballast water filtration device which increases compactness and operability, which can discharge all ballast water in the filtration device when not in operation, and can increase the convenience of airtightness and replacement of the filter.

Compact and operable ballast water filtration device for achieving the above object of the present invention includes the following configuration.

Ballast water filtration device compact and operable according to an embodiment of the present invention includes a filtration unit in the body having an inlet and an outlet through which the ballast water flows in and out to remove foreign substances in the ballast water, the filtration unit is inside the body A filter for filtering the ballast water flowing through the filter, and an automatic washing unit for backwashing the foreign matter attached to the filter, wherein the automatic washing unit is driven to drive the automatic washing unit by a signal from the controller, A suction part for suctioning foreign substances attached to the filter, and a discharge part for discharging the foreign substances sucked from the suction part, wherein the discharge part has a discharge tube which is a passage through which the foreign substances are discharged and is located below the body of the filtration unit. By communicating with the filter, the space efficiency in the vessel is increased and the simple structure Characterized in that can be achieved.

According to another embodiment of the present invention, in the ballast water filtration apparatus according to the present invention, the drive unit is located above the body, the drive unit is separated from the discharge pipe to form a simple structure to increase the maintenance efficiency It features.

According to another embodiment of the present invention, in the ballast water filtration apparatus according to the present invention, the suction part is connected to a suction rod for suctioning foreign substances attached to the filter, and a stopper at one side of the core acting as a rotating shaft for rotating the suction rod. It is provided with, characterized in that when the stopper is in contact with the body by limiting the movement of the core to prevent the suction rod from being damaged by hitting the body.

According to another embodiment of the present invention, in the ballast water filtration apparatus according to the present invention, the drive unit is a drive shaft rotated and moved by a drive motor, the contact means attached to one side of the drive side, and the suction unit A pair of first limit switches which are spaced up and down by Shanghai equal intervals to be in contact with the contact means, and a pair of second which are further spaced apart from each other further up and down than the first limit switches to set the Shanghai copper limit section of the suction unit. Including a limit switch, when the contact means is moved beyond the separation interval of the first limit switch to limit the movement of the suction portion by the second limit switch double to prevent the suction portion from colliding with the body damage It features.

According to another embodiment of the present invention, in the ballast water filtration apparatus according to the present invention, a drain line is formed at the lower portion of the body, and when the operation of the filtration device is stopped, the ballast water in the body is drained to the drain line. It prevents the corrosion of the inside of the body due to the standing ballast water, and the upper portion of the body includes an air injection portion for injecting air into the body, when the ballast water in the body to drain the air through the drain line It is characterized in that the injection can remove the foreign matter attached to the inside of the body.

According to another embodiment of the present invention, in the ballast water filtration apparatus according to the present invention, the upper side is coupled to the upper surface of the body, the lower side is coupled to the partition wall of the body, the upper and lower ends of the filter It is attached to the seat seated in direct contact with the body, and the O-ring is located on the contact surface of the seat and the body, it is possible to prevent the ballast water before the filtration inside the filter flows into the contact surface between the filter and the body by the filtration pressure. It features.

According to another embodiment of the present invention, in the ballast water filtration apparatus according to the present invention, the sheet on the upper side of the filter contacts the downwardly protruding piece of the upper cover plate which blocks the filter opening formed in the upper surface of the body, Since the O-ring is inserted into the O-ring groove formed in the downward protrusion of the upper cover plate, it is possible to easily replace the O-ring by removing only the upper cover plate, characterized in that the O-ring replacement operation can be easily performed.

According to another embodiment of the present invention, in the ballast water filtration apparatus according to the present invention, the sheet under the filter contacts the protruding pieces surrounding the ballast inlet hole formed in the body partition wall, and the O-ring is disposed under the filter. Since it is inserted into the second O-ring groove formed in the seat, it is possible to replace the O-ring by separating only the filter, it is characterized in that the O-ring replacement can be easily performed.

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

The present invention by dispersing the discharge portion and the back washing line for discharging the foreign matter after the filter backwash of the components concentrated in the upper part of the filter in consideration of the special installation environment of the filtration device mounted on the ship, In addition to simplifying the structure and reducing the space for installing the upper portion of the filtration device, it has the effect of efficiently managing foreign matter discharge and back pressure management of the filtration unit.

The present invention includes dual triple related components which can prevent the damage of the automatic washing unit moving in order to backwash the filter in the filtration unit in advance, thereby preventing damage to the device and ensuring durability. Has the effect.

The present invention can discharge all the ballast water in the filtration device when not in operation, and has the effect of improving the airtightness of the filter and the convenience of replacement.

1 is a side view of a conventional ballast water filtration device
Figure 2 is an exploded perspective view of the ballast water filtration apparatus according to an embodiment of the present invention
3 is a cross-sectional view of the filtration device of FIG.
4 is a plan view of the filtration device of FIG.
5 is a bottom view of the filtration device of FIG.
6 is a cross-sectional view showing the relationship between the back washing line and the back pressure prevention tank.
7 is an enlarged view of portion 'A' of FIG. 3 showing the relationship between the stopper and the bushing.
8 is an enlarged view of a portion 'B' of FIG. 3 showing a detailed configuration of a driving unit;
9 is a cross-sectional view showing a state where the drain line and the air injection unit is located
FIG. 10 is an enlarged view of a portion 'C' of FIG. 3 showing a coupling relationship between an upper side of a filter and FIG.
11 is a cross-sectional view showing the coupling relationship of the upper side of the conventional filter
12 is an enlarged view of a portion 'D' of FIG. 3 showing a coupling relationship under the filter.

Hereinafter, with reference to the accompanying drawings, preferred embodiments of the ballast water filtration device to increase the compact and operability according to the present invention will be described in detail. 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.

Figure 2 is an exploded perspective view of the ballast water filtration device according to an embodiment of the present invention, Figure 3 is a cross-sectional view of the filtration device of Figure 2, Figure 4 is a plan view of the filtration device of Figure 2, Figure 5 is 6 is a cross-sectional view showing the relationship between the back washing line and the back pressure preventing tank, and FIG. 7 is an enlarged view of part 'A' of FIG. 3 showing the relationship between the stopper and the bushing, and FIG. 3 is an enlarged view of part 'B' of FIG. 3 showing a detailed configuration of a driving unit, FIG. 9 is a cross-sectional view showing a state where a drain line and an air injection unit are located, and FIG. 3 is an enlarged view of part 'C', FIG. 11 is a cross-sectional view showing a coupling relationship of a conventional filter upper side, and FIG. 12 is an enlarged view of part 'D' of FIG. 3 showing a coupling relationship of a filter lower side.

First, referring to Figures 2 to 5 for the basic structure of the ballast water filtration apparatus according to an embodiment of the present invention, the ballast water filtration device according to an embodiment of the present invention inlet 110 in which the ballast water flows in and out And a filtration unit included in the body 10 having the outlet portion 120 and the filtration unit, the filtration unit includes a filter 20 for filtering ballast water flowing in the body 10, and the filter 20. It includes an automatic washing unit 30 for backwashing the foreign matter attached to (that is, not shown a separate reference numeral for the filtration unit, which is a unit consisting of the filter 20 and the automatic washing unit 30 it means).

The body 10 is a part forming the outer skeleton of the ballast water filtration apparatus according to the present invention, the ballast water introduced into the interior through the inlet 110 of the body 10 is filtered in the body 10 Foreign matters are filtered and processed while passing through the unit, and then discharged through the outlet 120 of the body 10. The outlet portion 120 of the body 10 is preferably located above the inlet portion 110, the inside of the body 10, as shown in Figure 3, between the inlet portion 110 The filter chamber 161 is formed by the lower surface 150 forming the lowermost surface of the body 10 and the partition wall 140 forming the intermediate surface and temporarily storing the ballast water flowing into the inlet 110 before the treatment. And the upper surface 130 forming the uppermost surface of the partition wall 140 and the body 10 with the outlet portion 120 interposed therebetween and filtered through the filter 20 and the filter 20. After filtration chamber 162 may be formed to store the treated ballast water. The filter inlet hole 131 is formed through the upper surface 130 to allow the filter 20 to enter the body 10, and is coupled to the filter inlet hole 131 after the filter 20 is installed. The upper cover plate 170 to close it is combined. The partition wall 140 has a ballast water inlet 141 formed therethrough so that the ballast water temporarily stored in the filtration chamber 161 can be introduced into the filter 20, and surrounds the ballast water inlet 141. Protruding pieces 142 which are in contact with the inner surface of the lower side of the filter 20 may be formed so that the lower side of the 20 may be stably fixed.

The filter 20 is configured to remove the foreign matter by filtering the ballast water introduced into the body 10, the filter 20 is inserted into the body 10 through the filter inlet 131 is the post-filtration chamber 162 The bottom of the filter 20 is fixed to the partition wall 140, the upper surface 130 of the upper side, respectively. When the filter 20 is installed, the ballast water temporarily stored in the filtration chamber 161 through the inlet 110 is introduced into the filter 20 through the ballast water inlet 141 to filter 20 As the foreign matter is filtered through the inner peripheral surface of the filter 20 while moving to the post-filtration chamber 162 through. The filter 20 may be preferably formed in a cylindrical shape, and foreign substances such as particles and particles are filtered in the process of filtering the ballast water to the filter 20. If such filtration continues, foreign matters may accumulate on the inner circumferential surface of the filter 20, and the filtration function may be degraded, and the pressure inside the filter may be excessively increased, thereby causing a risk factor. The foreign material removal operation of the inner circumferential surface is performed (that is, the first pressure sensor 40 installed on the upper surface 130 or the outlet 120 side of the body 10 to measure the pressure of the post-filtration chamber 162). Compared to the pressure measured by the, measured by the second pressure sensor 50 is installed on the inlet 110 side of the body 10 to measure the pressure inside the filtration chamber 161 and / or the filter 20 If the pressure becomes excessively higher than a predetermined range, since the filtration function is lowered as well as a risk factor due to the overpressure, the foreign material removal operation by the automatic washing unit 30 is performed under the control of a controller (not shown).

The automatic washing unit 30 is configured to backwash the foreign matter attached to the filter 20. For this purpose, the automatic washing unit 30 drives the automatic washing unit by a signal of a controller (not shown) ( 310, a suction part 320 connected to the driving part 310 to suck foreign matter attached to the filter 20, and a discharge part 330 to discharge the foreign matter sucked from the suction part 320. It may include.

The driving unit 310 provides power for operating the automatic cleaning unit 30, and uses the power to rotate and / or move the suction unit 320, which will be described later, and generally provides driving power. The driving motor 311 and one end is connected to the driving motor 311, the core of the suction unit 320 to be described later that is connected to the other end while being rotated and / or moved by receiving power from the driving motor 311 It may include a drive shaft 312 to rotate and / or move in conjunction with (322). At this time, in order to specify the shankdong interval of the drive shaft 312, the drive shaft 312 has a separate contact means 313, which is formed in a plate shape so as to contact a pair of limit switches to be described later An example) and a pair of first limit switches 314 spaced up and down by a contact interval between the contact means 313 (which corresponds to the shank east distance of the drive shaft 312) are disposed. When the driving shaft 312 moves up and down, the contact means 313 contacts the lower first limit switch 314 so as to move upward. On the contrary, the contact means 313 moves upwardly. 314) has a structure to move downward.

The suction unit 320 is connected to the driving unit 310 and sucks foreign substances attached to the filter 20 while moving. The suction unit 320 includes a suction rod 321 for sucking foreign substances adhered to the filter 20, The suction rod 321 is connected to the driving shaft 310 of the driving unit 310 at a predetermined distance along the longitudinal direction and connected to the driving shaft 312 of the driving unit 310 to rotate And a core 322 acting as a rotation axis for rotating the suction rod 321 while moving up and down. The suction rod 321 has a foreign material and a backwashing water attached to the inner circumferential surface of the filter 20 through a suction port 3211 formed at the center thereof while one end thereof is in contact with or very close to the inner circumferential surface of the filter 20. The filtered ballast water outside the filter 20 is sucked together with the foreign matter attached to the inside of the filter 20 by the suction pressure at the suction port 3211, which is passed back from the outside of the filter 20 to the backwash water. And the like to be moved to the core 322, and the core 322 has a discharge part to be described later through a conduit formed in a lengthwise direction with foreign substances sucked from each suction rod 321 and the like. 330 to allow it to be discharged.

The discharge portion 330 is a portion for discharging the foreign matter sucked by the suction unit 320, one end of the discharge pipe 331 which is the discharge passage of the foreign matter is in communication with the core 322 and the other end is in communication with the outside As a result, foreign matters and the like are discharged from the core 322 to the outside. An exhaust valve 3311 is connected to one side of the discharge pipe 331, and the exhaust valve 3311 is connected to one side of the discharge pipe 331 to suction / absorb foreign substances attached to the filter 20. It is controlled by a controller (not shown) to provide a suction force for discharge. That is, when the exhaust valve 3311 is opened, the discharge pipe 331, the core 322, and the suction bar 321 may be at atmospheric pressure, ie, high inside the filtration chamber 162 or inside the filter 20. Since a low air pressure is formed compared to the air pressure, the ballast water inside the filtration chamber 162 is sucked into the suction bar 321 having a low air pressure, and foreign substances attached to the inner circumferential surface of the filter 20 are also sucked together (at this time, suction The ballast water of the post-filtration chamber 162 serves as the backwash water), and when the exhaust valve 3311 is closed, suction of the backwash water and the foreign matter is stopped.

In the ballast water filtration apparatus according to an embodiment of the present invention, in particular, the discharge pipe 331 which is a passage for discharging the foreign matter from the discharge portion 330 is located below the body 10, the body 10 By forming the back washing line 332 to the outside to discharge the foreign matter from the lower, it is characterized in that it can achieve a simple structure and increase the space efficiency in the vessel.

That is, as pointed out as a problem of the prior art, in the conventional ballast water filtration device, the drive unit (a) for driving the backwashing device for backwashing the filtration unit included in the filtration device, as well as discharge the foreign matter after backwashing. Since the discharge part (b) and the pipe line (c) to take the structure is concentrated on the upper part of the filtering device (see Fig. 1), the installation work on the upper part of the filtering device in which the above components are mixed, as well as replacement and In the future, there was a problem that the work becomes cumbersome even when dismantling, especially in a special environment such as a ship, the space in which the filtration device as the present invention is installed is very narrow (a space such as a machine room in order to secure a wide space for a ship's unique purpose) So that the upper space of the filtration device is also very narrow accordingly, In the structure in which the various components are concentrated, the maintenance difficulty is inevitably increased. Furthermore, as each component of the filtration apparatus is concentrated at the upper portion of the filtration apparatus, the upper space required for installation and dismantling must also be increased, In addition to securing a separate upper space for the filtration device in a special installation environment such as a ship, the lower space formed between the filtration device and the bottom surface by a pedestal supporting the filtration device at the bottom is not utilized. There is also a problem that causes.

Therefore, in the present invention, in order to fundamentally solve the above-described conventional problems, as shown in FIGS. 2 to 5, the discharge pipe 331 which is a passage through which foreign substances are discharged from the discharge part 330, the body The back washing line 332 is located at the lower part of the body 10 and protrudes to the outside through the lower surface 150 of the body 10, and then directed to the outside from the lower part of the body 10. It forms a structure to form. In the structure of the present invention as described above, the driving unit 310 is disposed on the upper portion of the body 10, the discharge portion 330 is separately disposed in the lower portion of the body 10, all the configuration is the body ( 10) It is not necessary to secure the space above the filtration device larger than necessary in a special environment such as a ship by eliminating the problems of the prior art concentrated on the upper side of the vessel. Since the outlet portion 330 is positioned in the lower space by using the lower space formed between the bottom surfaces, the utilization of the space is increased, as well as the discharge portion located at the upper portion and the pipe line extending downward again as before. It is not necessary to configure additional piping, such as a piping line, so that the device can be made compact, and in particular, the operator can filter the filtration plant during installation, replacement, and dismantling of the discharge unit 330. It is possible to install, replace and dismantle the discharge part 330 located under the filtration device without going up to the upper part of the device and increasing convenience of maintenance and convenience of maintenance (as well as the body). (10) Installation, replacement, and dismantling of the driving unit 310 or each component of the filtration device in the upper part may also be easily performed since the discharge part 330 of the upper part of the filtration device is separated into the lower part). In addition, since the discharge pipe 331 extends downward rather than upward as in the prior art, when the foreign matter sucked in the back washing process through the discharge pipe 331, foreign matter moves more easily along the discharge pipe 331. Back pressure in the discharge pipe 331 (because the moving direction is coincident with the gravity direction) ('back pressure used in the present invention, by suctioning foreign matter attached to the inner peripheral surface of the filter 20 through the discharge pipe 331 and discharged) In order to reduce the pressure formed in the discharge pipe 331 outside the filter 20 (that is, after the filtration chamber 162) or the pressure inside the filter 20, a large amount of foreign matter or backwash moves to the discharge pipe 331. As the filling of the discharge pipe 331 is full, the pressure in the discharge pipe 331 rises from low pressure to high pressure, thereby forming a pressure that makes it difficult to suck foreign substances attached to the inner circumferential surface of the filter 20. In other words, as the back pressure increases, it is not easy to discharge foreign substances through the discharge pipe 331, so it is important to adjust the pressure so that the back pressure in the discharge pipe 331 does not increase. Can be reduced even more.

In addition, in the present invention, the components of the automatic washing unit 30 are frequently collided with the upper and lower parts of the body 10 in the process of operating the automatic washing unit 30 to backwash the foreign matter attached to the filter 20. It may include technical configurations that can be more fundamentally prevented from being damaged by. That is, in the present invention, as shown in FIGS. 3 and 7, a position lower than one side of the core 322 of the suction part 320, that is, the lowermost suction rod 321 attached to the core 322, and / or A separate stopper 3221 is provided at a position higher than the uppermost suction rod 321 attached to the core 322, so that when the stopper 3221 contacts the body 10, By limiting the shankdong to prevent the suction rod 321 is damaged by hitting the body (10).

As described above, the suction part 320 moves the core 322 in conjunction with the rotation and the shankdong of the drive shaft 312 so as to backwash the foreign matter attached to the inner peripheral surface of the filter 20. The suction rod 321 attached to the to be able to suck the foreign matter attached to the inner circumferential surface while rotating and moving the inner circumferential surface of the filter 20, when the core 322 is excessively moved up and down the core ( The suction rod 321 located at the bottom of the 322 may hit the body 10, that is, the partition wall 140 of the filtration chamber 162, or the suction rod 321 located at the top of the core 322. ) Hits the body 10, that is, the upper surface 130 of the post-filtration chamber 162 to cause a problem of damage, in order to prevent this more fundamentally, the core of the suction unit 320 One side of the 322, that is, the lowermost suction rod 321 attached to the core 322 In the lower position (see FIG. 7), a separate stopper 3221 is provided so that the stopper 3221 contacts the body 10, that is, the partition wall 140 while the core 322 moves downward. By limiting the shankdong of the core 322 to prevent the suction rod 321 is damaged by hitting the body (10). For reference, in FIG. 3, an example in which the stopper 3221 is provided at a position higher than the uppermost suction rod 321 attached to the core 322 is not illustrated, but the stopper 3221 may have a core as necessary. It may be further formed at a position higher than the uppermost suction rod 321 attached to 322. At this time, the stopper 3221 is in contact with the partition wall 140 and / or the upper surface 130 is necessary to prevent damage due to the contact, for this purpose in the present invention as shown in FIG. In addition to installing a separate bushing 143 on the partition wall 140 to which the stopper 3221 comes into contact, the stopper 3221 is formed of a metal material and the bushing 143 is made of a non-metal material, in particular, a self-lubricating plastic, By forming a plastic material such as polypropylene (PP) or nylon, it is possible to prevent the stopper 3221 or the partition wall 140 (or the bushing 143) from being damaged even after frequent contact and bumping.

3 and 8, in addition to the pair of first limit switches 314 and the contact means 313 of the driving unit 310 described above, a pair of the first limit is further provided. The contact means 313 further includes a pair of second limit switches 315 spaced upward and downward from the switch 314 so as to set a Shanghai copper limit section of the core 322 of the suction part 320. In the case of moving beyond the separation interval of the first limit switch 314 is detected by the second limit switch 315 by double limiting the movement of the core 322 of the suction unit 320 The suction part 320, more specifically, the suction rod 321 may be prevented from being damaged by hitting the body 10.

That is, as described above, in the driving unit 310, in order to specify the distance between the driving shaft 312, a separate contact means 313 is attached to the drive shaft 312, the contact means 313 A pair of first limit switches 314 spaced vertically and spaced apart from each other (W1, which corresponds to the shank dong spacing of the drive shaft 312) by placing the gap between the drive shafts 312 When the contact means 313 is in contact with the lower first limit switch 314 to change the direction of movement in the upward movement, on the contrary, the contact means 313 is in contact with the upper limit switch 314 In this case, an abnormality caused by frequent contact between the contact means 313 and the first limit switch 314 or an abnormality of a control signal of a controller (not shown) is adopted. The contact means 31 for 3) may continue to move beyond the first limit switch 314, and if this occurs, the suction rod 321 of the suction unit 320 hits the body 10 and is damaged. In the present invention, as shown in FIG. 8, the upper and lower portions of the pair of first limit switches 314 may be further added to the first limit switch 314 as shown in FIG. 8. The second limit switch 315 is disposed to be further spaced apart from each other (in this case, the interval W2 between the second limit switch 315 is the suction rod 321 of the core 322 is the body 10 It should be within the range that does not touch). As described above, the second limit switch 315 located above the pair of second limit switches 315 is higher than the first limit switch 314 located above the one of the pair of first limit switches 314. The second limit switch 315 is disposed further apart from each other, and the second limit switch 315 located below the pair of second limit switches 315 is positioned below the first limit switch 314 of the pair of first limit switches 314. 8, the contact means 313 continuously moves downward beyond the lower first limit switch 314 as illustrated in FIG. 8. When the 313 contacts the lower second limit switch 315, the second limit switch 315 transmits the contact signal to a controller (not shown) so that the driving shaft 312 is provided with the contact means 313. This can be controlled so that it no longer moves downward. In this case, the circuit in which the second limit switch 315 is connected to a controller (not shown) forms a separate circuit separate from the circuit in which the first limit switch 314 is connected to a controller (not shown). Even if the contact means 313 continues to move beyond the first limit switch 314 due to a circuit abnormality between the first limit switch 314 and the controller (not shown), the second limit switch 315 may be used. When the circuit between the control unit (not shown) operates normally and the contact means 313 contacts the second limit switch 315, the second limit switch 315 transmits the contact signal to the control unit (not shown). The drive shaft 312 to which the contact means 313 is attached is to be controlled so as not to move any more.

In addition, the second limit switch 315 is positioned to face the first limit switch 314, so that the second limit even when the separation distance between the first limit switch 314 and the second limit switch 315 is narrow. The switch 315 may allow the contact means 313 to be detected accurately. That is, if the second limit switch 315 is spaced up and down at the same position as the first limit switch 314, if the second limit switch 315 is not sufficiently spaced apart from the first limit switch 314, After the contact means 313 passes the first limit switch 314 and before the second limit switch 315 contacts, the interference between the first limit switch 314 and the second limit switch 315 already occurs. As a result, the second limit switch 315 may not be able to accurately detect the contact means 313. Thus, as shown in FIG. 8, the second limit switch 315 may be replaced by the first limit switch ( By placing it in a position opposite to 314, the gap between the second limit switch 315 and the first limit switch 314 is narrow (that is, the suction rod 321 is the most suitable for backwashing the filter 20). Body at the low or highest position ( 10, the second limit switch 315 is able to accurately detect the contact means 313 without interference with the first limit switch 314, even if the separation interval with the narrow), the suction rod 321 is the body ( It is possible to prevent double damage accurately by hitting 10).

In addition, in the present invention, as shown in Figures 3, 5 and 9, the drain line 180 with a separate control valve 181 is formed on the lower portion of the body 10, the operation of the filtration device is stopped In this case, the ballast water inside the body 10 may be drained to the drain line 180 to prevent corrosion of the inside of the body 10 due to standing ballast water.

That is, the ballast water filtration device of the present invention often occurs when the ballast water filtration device is stopped, such as when the vessel is anchored for a long time due to the nature of being mounted on the vessel, the filtration device does not operate for a long time If the ballast water is left standing in the body 10 of the filtration device, the ballast water containing salt may cause corrosion to the inside of the body 10 due to the characteristics of the ballast water containing salt. There is a problem that will adversely affect.

Therefore, in the present invention, as shown in Figures 3, 5 and 9, a separate control valve 181 is attached to the lower portion of the body 10, more specifically, the lower surface 150, which is the lowest of the body 10 A drain line 180 (for reference, the control valve 181 may be omitted). As such, when the filtration device is not operated for a long time through the drain line 180 formed on the body 10, that is, the lower surface 150, which is the lowest position below the filtration chamber 161, the control of the drain line 180 is performed. Since the valve 181 can be opened to discharge the ballast water accumulated in the pre-filtration chamber 161 and the post-filtration chamber 162 to the outside through the drain line 180, the pre-filtration chamber 161 of the body 10. After filtration and inside the chamber 162, the ballast water is completely discharged and is not left. Therefore, it is possible to fundamentally prevent problems such as corrosion occurring in the body 10 due to salinity of ballast water accumulated in the body 10 without being discharged as in the related art. The position where the drain line 180 is installed is preferably formed in communication with the lowest portion of the lower surface 150.

In addition, in the present invention, in addition to the drain line 180 formed below the body 10, an air injection unit 190 for injecting air into the body 10 in addition to the upper portion of the body 10 Including the ballast water in the body 10 may inject air during drainage through the drain line 180 to remove foreign substances attached to the inside of the body 10.

That is, as shown in Figures 3, 4 and 9, the air injection to inject air toward the inside of the body 10 from the top of the body 10, that is, the upper surface 130 of the body 10 Part 190 (which is connected to a compressor or the like for providing air or compressed air to inject air or compressed air into the body 10, and may include a control opening and closing valve for adjusting the injection) In this case, air (or compressed air) is injected into the body 10 through the air injection unit 190 at the time of draining (discharging) the ballast water in the body 10 through the drain line 180. 10 allows the ballast water in 10 to be quickly discharged through the drain line 180. The ballast water accumulated in the filtration chamber 162 due to the air injection through the air injection unit 190 passes through the filter 20 and passes through the ballast water inlet hole 141 under the filter 20. ) To be finally discharged through the drain line 180. At this time, the effect that the foreign matter attached to the inner surface of the body 10 can be discharged together from the inner surface by the pressure in accordance with the air injection by the air injection unit 190 can also be expected. In addition, the air injection unit 190 is used as a configuration to inject a separate compressed air, but if necessary discharge the ballast water discharged through the drain line 180 by discharging the air in the body (10) Configurations such as vents can also be utilized to facilitate the operation.

In addition, in the present invention, as shown in Figures 3, 10 and 12, the upper side of the filter 20 is coupled to the upper surface 130 of the body 10, the lower side of the partition wall of the body (10) It is coupled to the 140, and the upper and lower ends of the filter 20 has a form that is attached to the seat 210 is seated in direct contact with the body 10.

However, referring to FIG. 11, in the conventional case, in order to maintain the airtightness of the coupling portion between the upper side of the filter 20 and the body 10 as described above (the coupling portion between the lower side of the filter 20 and the body 10). The same may be applied to maintain airtightness), the upper cover plate 170 that covers the filter inlet hole 131 formed on the upper surface 130 of the body 10, the sheet 210 directly above the filter 20 Rather than being in direct contact with the downwardly protruding piece 171), a separate rubber packing (d) is applied between the upper sheet 210 of the filter 20 and the downwardly protruding piece 171, and more specifically, The sheet 210 has a structure to cover a separate rubber packing (d, forming a cross-section of the '┏┓' shape as shown in Figure 11). However, in such a conventional structure, as the foreign matters are attached to the inner peripheral surface of the filter 20, the pressure inside the filter 20 becomes high and the pressure outside the filter 20 becomes relatively low. As the pressure of the ballast water trying to escape from the inside of the filter 20 is increased, the pressure at which the ballast water tries to escape through the coupling portion between the upper side of the filter 20 and the body 10 is also increased. (20) The phenomenon in which the rubber packing (d) covering the upper sheet (210) is peeled out of the filter (20) by the pressure often occurs, and the rubber packing (d) is removed from the filter (20). A problem arises in that the unfiltered ballast water inside the filter 20 leaks to the outside of the filter 20 as it is through the upper gap (of course, the same problem also occurs under the filter 20).

Therefore, in the present invention, in order to solve the problem according to the coupling structure between the conventional filter 20 and the body 10 as described above, as shown in Figure 3 and 10, the sheet 210 and the upper side of the filter 20 and A separate O-ring 60 is placed on the contact surface between the downwardly protruding pieces 171 of the upper cover plate 170 of the body 10, so that the filter 20 is controlled by the filtration pressure (that is, the pressure difference between the inside and the outside of the filter 20). It is possible to prevent the ballast water from flowing into the contact surface gap between the filter 20 and the body 10, that is, the downward protrusion 171 of the upper cover plate 170.

That is, in the present invention, instead of the rubber packing (d) covering the sheet 210 of the filter 20 as in the prior art, the seat 210 fixed to the filter 20 is directly the body 10, that is, the upper portion By contacting the downward projection 171 of the cover plate 170, but by placing a separate O-ring 60 on the contact surface between the sheet 210 and the downward projection 171 of the upper cover plate 170, The ballast water before filtration inside the filter 20 by the O-ring 60 flows out of the filter 20 through a contact surface gap between the sheet 210 and the downwardly protruding piece 171 of the upper cover plate 170. Will be prevented. Since the O-ring 60 is located in the recessed groove formed in the sheet 210 or the upper cover plate 170, the downward protrusion 171, the conventional rubber packing () even in the filtration pressure inside the filter 20 As shown in FIG.

In this case, in particular, in the upper side of the filter 20, the O-ring 60 is inserted into the O-ring groove 172 formed in the downwardly protruding piece 171 of the upper cover plate 170, as shown in FIG. 10. By taking the, it is possible to easily replace the O-ring 60 by removing only the upper cover plate 170, it characterized in that to easily perform the O-ring 60 replacement.

That is, the O-ring 60 included to maintain the airtightness of the upper portion of the filter 20 as described above is inserted into the O-ring groove 172 formed in the downward protrusion piece 171 of the upper cover plate 170. If possible, when the replacement or maintenance work for the O-ring 60, the upper cover plate 170 is only to separate from the body 10, the downward projection piece of the upper cover plate 170 Since the O-ring 60 located in the O-ring groove 172 formed in the can be easily separated and replaced, the O-ring 60 can be replaced in a short time and the convenient operation can be performed. If it is assumed that the O-ring groove 172 is formed on the surface of the sheet 210 on the upper side of the filter 20, unlike in Figure 10, the upper cover plate 170 for the replacement of the O-ring 60 In addition to the separation of the filter 20 in addition to the operation to be pulled out in the body 10 must be further proceeded (even if, even if the replacement operation of the O-ring 60 without the filter 20 is not removed, This is because the worker must go up to the upper side of the body 10 and work through the inside of the filter inlet hole 131. It is obvious that this is not easy), replacement or maintenance of the O-ring 60 will have a much more complicated and time-consuming problem. Therefore, in the present invention, by forming the O-ring groove 172 to be fixed to the O-ring 60 as described above in the downward protrusion piece 171 of the upper cover plate 170, the convenience and speed of the replacement operation It can be secured.

In addition, in the present invention, unlike the upper side of the filter 20, as shown in FIG. 12 below the filter 20, the seat 210 of the lower side of the filter 20 is the partition wall 140 of the body 10 Is in contact with the protruding piece 142 surrounding the ballast inlet hole 141 formed therein, wherein the O-ring 60 is formed in the second O-ring groove 211 formed in the seat 210 under the filter 20. By taking the structure to be inserted, it is possible to easily replace the O-ring 60 by removing only the filter 20, it is possible to easily perform the replacement of the O-ring 60 of the lower side of the filter 20.

That is, unlike the upper side of the filter 20, the seat 210 attached to the lower side of the filter 20 protrudes around the ballast inlet hole 141 in the partition wall 140 of the body 10. In contact with the protruding piece 142 is formed to be coupled, wherein the O-ring 60 included for airtightness in the contact surface between the sheet 210 and the protruding piece 142 below the filter 20 is firmly When the second O-ring groove 211 which is formed to be seated and fixed is formed to be recessed to the seat 210 surface of the lower side of the filter 20, the replacement of the O-ring 60 under the filter 20 is performed. The O-ring located in the second O-ring groove 211 recessed in the seat 210 surface below the filter 20 when only the filter 20 is separated from the body 10 when the maintenance work is required. 60) can be easily removed and replaced, so the O-ring (60) can be replaced in a short time and is convenient. You will be able to proceed with this work. It is assumed that the second o-ring groove 211 is formed on the surface of the protruding piece 142 protruding from the ballast inlet hole 141 in the partition wall 140 of the body 10, unlike in FIG. In this case, only the separation of the upper cover plate 170 and the filter 20 is insufficient for the replacement of the O-ring 60 positioned below the filter 20, and additionally, the suction part 320 in the body 10 is disposed. In addition, since the operator must enter the narrow body 10 and perform the replacement work in the body 10, the replacement or maintenance of the O-ring 60 located below the filter 20 is more complicated. And you will have a lot of time-consuming problems. Accordingly, in the present invention, by replacing the second O-ring groove 211 to be fixed to the seat 210 surface of the lower side of the filter 20, the O-ring 60 in the lower position of the filter 20 as described above, the replacement For the operation, if only the filter 20 is pulled out from the body 10 to the outside, the O-ring 60 attached thereto can be easily replaced from the outside, thereby ensuring convenience and speed.

In addition, in the present invention to prevent the back pressure is formed in the discharge pipe 331 and / or the back washing line 332 more fundamentally, as shown in Figure 6 to prevent back pressure on the back washing line 332 Including the tank 333, the back washing water and the foreign matter of the back washing line 332 is primarily stored in the back pressure preventing tank 333 to prevent the back pressure is increased on the back washing line 332. can do.

The back pressure prevention tank 333 has a configuration such as a storage tank forming an internal space capable of storing water, and is located in the middle of the back washing line 332. Therefore, the backwashing water and the foreign matter, which were moved along the backwashing line 332, are introduced into the back pressure preventing tank 333 in the middle and temporarily stored. That is, in the case of the conventional case in which only the back washing line 332 is formed long, the back washing water and the foreign matter, which are moved along the back washing line 332, are weakened in the flow moving along the back washing line 332. It is accumulated in the pipeline of the instant back washing line 332 to increase the rate of blocking the pipeline of the back washing line 332 and thereby increase the pressure in the back washing line 332, that is, the back pressure, as in the present invention By forming a separate back pressure preventing tank 333 in the middle of the washing line 332, the backwash water and the foreign matter flowing through the back washing line 332 is temporarily stored in the back pressure preventing tank 333 in the middle, As in the prior art, it is quickly moved from the back washing line 332 to the back pressure prevention tank 333 without being stuck in the middle of the long back washing line 332, thereby preventing the back washing line 332 from being blocked. Even if the back pressure does not increase It can be prevented.

As shown in FIG. 6, the back pressure preventing tank 333 is formed such that the outlet 3332 is discharged lower than the inlet 3331 to allow the backwash water to flow into the tank, and thus the back pressure preventing tank 333. The water level can be maintained lower than the inlet (3331), the backwash water flowing into the back pressure prevention tank 333 in the back washing line 332 through the inlet (3331) can be moved smoothly without clogging. The back pressure can be prevented from increasing so much in advance.

In addition, the back pressure prevention tank 333 artificially includes a water level measuring sensor 3333 for measuring the water level in the tank, and a backwash water stored in the tank when the water level measured by the water level measuring sensor 3333 is greater than or equal to a predetermined height. It is possible to include a pump 3334 operating to allow for faster discharge, to maintain the water level in the tank below a certain height at all times to prevent an increase in back pressure on the backwash line 332. That is, the present invention is provided with a water level measuring sensor (3333) for measuring the water level in the tank separately in the back pressure prevention tank 333, through which the water level in the tank is a certain height (usually the same as the height of the inlet 3331) If the height rises above) by detecting this to operate the pump 3332 installed in the outlet 3332 line to allow the backwash water, etc. stored in the tank to be discharged faster through the outlet 3332 artificially, the tank By maintaining the water level does not rise above a certain height it can be prevented in advance so that the back pressure does not increase by that much.

While the present invention has been described in connection with what is presently considered to be practical exemplary embodiments, it is to be understood that the invention is not limited to the disclosed embodiments, but, on the contrary, Should be interpreted as belonging to the scope.

10: Body
110: inlet 120: outlet 130: upper surface 131: filter inlet
140: partition 141: ballast water inlet 142: protrusion 143: bushing
150: lower surface 151: pedestal 161: pre-filtration chamber 162: post-filtration chamber
170: upper cover plate 171: downward projection 172: O-ring groove
180: drain line 181: control valve 190: air inlet
20: Filter
210: seat 211: second O-ring groove
30: automatic cleaning unit
310: driving unit 311: driving motor 312: driving shaft
313: contact means 314: first limit switch 315: second limit switch
320: suction part 321: suction rod 322: core 3221: stopper
330: discharge portion 331: discharge pipe 3311: exhaust valve
332: backwash line
333: back pressure prevention tank 3331: inlet 3332: outlet
3333: level sensor 3334: pump
40: first pressure sensor 50: second pressure sensor
60: O-ring
* Code related to the prior art
a: drive part b: discharge part c: piping line d: rubber packing

Claims (8)

In the ballast water filtration device that includes a filtration unit in the body having an inlet and an outlet through which the ballast water flows in and out, and removes foreign substances in the ballast water,
The filtration unit includes a filter for filtering the ballast water flowing through the body, and an automatic washing unit for backwashing the foreign matter attached to the filter,
The automatic washing unit includes a driving unit for driving the automatic washing unit according to a signal from the control unit, a suction unit connected to the driving unit to suck foreign substances attached to the filter, and a discharge unit for discharging foreign substances sucked from the suction unit; ,
The discharge part is a discharge pipe which is a passage for discharging the foreign matter is located in the lower portion of the body to communicate with the filter of the filtration unit, to increase the space efficiency in the vessel and achieve a simple structure,
The suction part is provided with a stopper on one side of the core that is connected to the suction rod for sucking the foreign matter attached to the filter and acts as a rotating shaft for rotating the suction rod, to limit the movement of the core when the stopper is in contact with the body The ballast water filtering device to increase the compact and operable, characterized in that the suction rod can prevent damage to the body hit. The method of claim 1,
The drive unit is located in the upper portion of the body, the drive unit is arranged separately from the discharge pipe to form a simple structure, it is possible to increase the maintenance efficiency, compact and operable ballast water filtration device. delete The method of claim 1,
The drive unit is a pair of first limits that are rotated and moved by the drive motor, the contact means attached to one side of the drive shaft, and a pair of first limit to be in contact with the contact means spaced up and down by the distance between the shank and the east A switch and a pair of second limit switches that are further spaced apart from each other further up and down than the first limit switch to set a Shanghai copper limit section of the suction unit,
Compact and operable when the contact means is moved beyond the separation interval of the first limit switch to prevent the suction part hits the body by damaging the movement of the suction part by the second limit switch double. Ballast water filtration to raise the pressure. The method of claim 1,
A drain line is formed at the lower part of the body, and when the operation of the filtration device is stopped, the ballast water in the body is drained to the drain line to prevent corrosion of the inside of the body due to the accumulated ballast water.
The upper portion of the body includes an air injection portion for injecting air into the body, it is possible to remove the foreign matter attached to the inside of the body by injecting air when draining the ballast water in the body through the drain line Ballast water filtration device which improves the compact and operability. The method of claim 1,
The filter has an upper side coupled to an upper surface of the body, a lower side coupled to a partition wall of the body, and a sheet which is seated in direct contact with the body is attached to the upper and lower ends of the filter, and an O-ring is attached to the contact surface between the sheet and the body. In this position, the ballast water filtration device with a compact and operable, characterized in that the filtration pressure to prevent the ballast water before filtration inside the filter flows into the gap between the contact surface of the filter and the body. The method according to claim 6,
The sheet on the upper side of the filter is in contact with the downward protrusion of the upper cover plate to block the filter inlet formed in the upper surface of the body, and the O-ring is inserted into the O-ring groove formed in the downward protrusion of the upper cover plate, Compact and operable ballast water filtration device, characterized in that the O-ring can be replaced only by removing the upper cover plate, so that the O-ring can be easily replaced. The method according to claim 6,
The sheet under the filter contacts the protruding piece surrounding the ballast inlet hole formed in the body partition wall, and the O-ring is inserted into the second O-ring groove formed in the sheet under the filter so that only the filter is removed. Compact and operable ballast water filtration device, characterized in that the O-ring replacement can be easily performed.

Images