KR101934986B1 - Turbine for water treatment, manufacturing method thereof and assembling jig for use therein - Google Patents

Abstract

The present invention relates to a method of manufacturing a turbine, comprising the steps of: adhering the fins of the turbine to the inner circumference of the turbine body in a state where they are fitted to each other; And a jig for use in the method. The present invention also provides a method of manufacturing a turbine.

Description

TECHNICAL FIELD [0001] The present invention relates to a turbine for water treatment, a method of manufacturing the same, and a jig for use in the same. BACKGROUND OF THE INVENTION [0002]

An embodiment of the present invention relates to a turbine used for water treatment (treatment for wastewater or sewage, treatment for improving water quality in stagnant water, etc.), a method for manufacturing the turbine, and a jig jig.

A large water tank, for example, a general large-capacity water tank, a wastewater or a water treatment tank for sewage treatment, performs stirring, circulation or aeration in order to improve water quality Is applied. For example, the water treatment bath may be a reaction vessel for a sequential batch reactor (SBR) process.

Turbines that perform agitation, circulation or abandonment of water are used not only for large water tanks but also for water quality improvement of various water bodies such as dams and lakes.

Korean Utility Model Registration No. 20-0202172 (Nov. 15, 2000) discloses a turbine used for water treatment.

The water treatment turbine is installed so that the lower part or the entire part is located in the water and is rotated around the center by the turbine drive device. The water flows into the water from the lower part through the lower inlet, And is configured to flow around the upper portion using a fin.

According to such a water treatment turbine, water can be forced to flow to improve water quality. Specifically, when the turbine is installed in the lower only water, the water from the lower part of the turbine flows out as the water, so that the water treatment effect due to the aeration action can be provided. In the case where the turbine is installed so as to be submerged in water as a whole, It is possible to provide a water treatment effect due to the water circulation between the upper and lower layers of the water.

The water treatment turbines we have looked at are usually manufactured in small quantities by order. Therefore, due to the nature of the small-scale production method, the development of the technology for improving the manufacturing efficiency and quality of the water treatment turbine has not been developed yet.

An object of the present invention is to provide a water treatment turbine which is superior in quality such as structural strength.

It is an object of the present invention to provide a jig for use in a manufacturing method of a water treatment turbine and an assembling process of the manufacturing method in terms of manufacturing efficiency and quality improvement.

The problems to be solved are not limited thereto, and other matters not mentioned can be clearly understood by those skilled in the art from the following description.

According to the embodiment of the present invention, ribs extending from the lower end portion to the upper end portion of the inner circumferential surface are arranged at intervals along the circumferential direction, the upper and lower ends of which are open, The turbine body having an insertion groove formed in the longitudinal direction of the rib; Fabricating a fin of a turbine having a vertical blade having an insertion end corresponding to the insertion groove at the base and a horizontal blade extending from the tip of the vertical blade; Obtaining a turbine body composed of the body and the fins by firmly adhering the inserted ends of the fins formed in the groove of the ribs of the manufactured body to each other using an adhesive (an adhesive material) ; After the step of obtaining the turbine main body, at least one fastening pin is passed through each of the ribs and the glued portions of the fins so as to firmly fix the body and the fins A method for manufacturing a turbine in which water is introduced from below and flows out around the upper part for forced flow for water treatment (treatment for wastewater or sewage, treatment for improvement of water quality in stagnant water such as lake water) Can be provided. For reference, the body of the turbine may be referred to as a casing or a rotor, and the fin of the turbine may be referred to as a blade.

A turbine manufacturing method according to an embodiment of the present invention includes the steps of: fabricating a turbine mount having a boss coupled with a drive shaft of a turbine drive apparatus; After the step of acquiring the turbine main body, the step of acquiring the water treatment turbine in which the boss is located at the center of the turbine main body by coupling the turbine mount manufactured on the turbine main body.

Each of the fins of the turbine may be provided with a mount nut or a plurality of mount nuts on the horizontal wing in the manufacturing of the fin. The turbine mount includes a mount rim in which the boss is positioned at a central portion in an assembling step of the turbine mount and an arm connecting the mount rim and the boss, The fins may be coupled to the mount nuts of the fins by bolts which are respectively coupled through the mount rims.

The turbine manufacturing method according to an embodiment of the present invention may further include adjusting a balance during rotation of the turbine obtained.

Here, the balance adjustment step may include detecting an unbalanced portion when the turbine rotates; And applying a weight balancer to the detected unbalanced portion. The weight balancer may be pressed by the bolt inserted into the mount nut adjacent to the unbalanced portion and coupled to the mount nut at the application of the balance.

Preferably, the body is a fiber reinforced plastic (FRP) turbine body manufactured by a hand lay-up molding method at the stage of manufacturing the body. Each of the fins is preferably a fin for a turbine of FRP manufactured by a resin transfer molding (RTM) molding method in the step of manufacturing the fin.

According to an embodiment of the present invention, there is provided a method of manufacturing a turbine, the method comprising: a body and fins disposed at an inner circumference of the body at predetermined intervals along a circumferential direction, (fins) are adhered to each other by an adhesive (adhesive material) in a fitting state and are fastened to each other by fastening pins.

According to an embodiment of the present invention, there is provided a water treatment system comprising: a main frame having a base on which a body of a water treatment turbine is placed; A plurality of fins disposed at a center of the main frame at intervals in the circumferential direction around the center of the main frame and coupled to the inner circumference of the body on the base at intervals along a circumferential direction, A plurality of clamps on the central side for urging each of them inwardly from the inside toward the outside; The fins are spaced apart from each other around the center of the main frame in the circumferential direction around the main frame and are spaced apart from each other in the circumferential direction on the inner circumference of the body on the base. A plurality of peripheral side clamps urged from the upper side to the lower side; A jig disposed in the center of the main frame and including a guide shaft in which a boss of a turbine mount to be coupled to the pins is fitted can be provided for use in a process of assembling a water turbine.

The jig according to the embodiment of the present invention may further include a plurality of support members for supporting an outer periphery of the body placed on the base around the main frame.

Each of the center-side clamps may include a clamping pin that can move linearly inward and outward relative to the body. Each of the peripheral clamps may include a clamping lever that is vertically rotatable with respect to the body.

Means for solving the problems will be more specifically and clarified through the embodiments, drawings, and the like described below. In addition, various solution means other than the above-mentioned solution means may be further proposed.

1 is a perspective view showing a water treatment turbine according to an embodiment of the present invention.
2 is a cross-sectional view showing a water treatment turbine according to an embodiment of the present invention.
3 is a perspective view showing the body of the turbine shown in Figs. 1 and 2. Fig.
4 is a perspective view showing a fin of the turbine shown in Figs. 1 and 2. Fig.
FIG. 5 is a cross-sectional view illustrating a coupling portion between the body and the pin shown in FIGS. 1 and 2. FIG.
FIG. 6 is a cross-sectional view showing a coupling portion between the pin and the turbine mount shown in FIGS. 1 and 2. FIG.
7 is a cross-sectional view showing a mold for a pin used in a turbine manufacturing method according to an embodiment of the present invention.
8 is a perspective view illustrating an assembly jig used in a turbine manufacturing method according to an embodiment of the present invention.
FIG. 9 is a perspective view showing a state where a turbine body of a water treatment turbine is applied to the assembly jig shown in FIG. 8. FIG.
10 is a plan view showing the clamping operation state of the center side clamps shown in Figs. 8 and 9. Fig.
Fig. 11 is a perspective view showing the clamping operation state of the peripheral clamps shown in Figs. 8 and 9. Fig.

Hereinafter, preferred embodiments of the present invention will be described with reference to the accompanying drawings. For a better understanding of the invention, it is to be understood that the size of elements and the thickness of lines may be exaggerated for clarity of understanding. Further, the terms used to describe the embodiments of the present invention are mainly defined in consideration of the functions of the present invention, and thus may be changed depending on the intentions and customs of the user and the operator. Therefore, the terminology should be interpreted based on the contents of the present specification throughout.

An embodiment of the present invention relates to a turbine for introducing water from the bottom for water treatment and flowing out of the upper portion to forcibly flow, a method of manufacturing such a turbine with an improved quality, It is the jig used.

[Water Treatment Turbine]

A water treatment turbine according to an embodiment of the present invention is shown in Figs.

1 and 2, the water treatment turbine according to the embodiment of the present invention includes a turbine body 10, 20 of FRP (fiber reinforced plastic) and a turbine body 10, 20 of a turbine body 10, And a turbine mount (30) of metal coupling the drive shaft (40) of the turbine drive on the center (rotation center).

The turbine bodies 10 and 20 include a body 10 having a cylindrical structure and a plurality of fins 10 disposed at an interval on the inner circumference of the body 10 along the circumferential direction of the body 10 , 20). The fins 20 are preferably arranged at equal intervals.

The body 10 is also referred to as a casing or a rotor. As shown in FIG. 3, the body 10 includes a hollow body 11 having open upper and lower ends. The body body 11 is formed in such a shape that the upper portion gradually opens. A plurality of ribs 12 having a relatively constant width and protrusion height are provided on the inner circumferential surface of the body 11.

The ribs 12 are formed to extend from the lower end portion to the upper end portion of the inner circumferential surface of the body main body 11 and are spaced apart from each other along the circumferential direction of the body proper 11 at regular intervals. On the ribs 12, an insertion groove 13 used for coupling with the pins 20 is formed in the longitudinal direction of the rib 12. The insertion groove portion 13 may be formed to have a length extending to both ends in the longitudinal direction of the rib 12.

Referring to Fig. 4, each of the fins 20 includes a vertical wing 21 having an insertion end 23 at the base and a horizontal wing 22 extending from the tip of the vertical wing 21.

The insertion end portion 23 of the pins 20 is formed in a shape corresponding to the insertion groove portion 13 of the ribs 12 of the body 10 and is fitted into each of the insertion groove portions 13.

The vertical blades (21) are mounted on the inner peripheral surface of the body body (11). The horizontal vanes 22 extend in a direction substantially perpendicular to the vertical vanes 21 and are formed substantially in parallel with the inner periphery of the body 11. [ According to the vertical blades 21 and the horizontal blades 22, a flow path is provided between the body 10 and the fins 20, respectively. Both ends of the flow path in the longitudinal direction communicate with the lower and upper periphery of the body (10).

5, the ribs 12 and the pins 20 of the body 10 are inserted into the insertion groove 13 at the insertion end 23 Are fastened to each other by the adhesive agent A, and the fastening pins P are respectively passed through a single or a plurality of fastening portions so as to be structurally fastened to each other. The pin P passed through the portions where the ribs 12 and the fins 20 are bonded to each other can be fixed in position by a screw coupling method or an adhesive finishing method.

The turbine mount 30 includes a boss 31 positioned at the center, a mount rim 32 positioned around the boss 31, and a mount rim 32 positioned at the periphery of the boss 31, And a plurality of arms 33 connected thereto. The turbine mount 30 may also be referred to as a metal ring because of its material and shape.

The boss 31 is disposed on the center of the mount rim 32. The drive shaft (40) of the turbine drive device is fitted in the boss (31) in the vertical direction. The arms 33 are preferably arranged in a radial configuration. The mount rim 32 is joined to the top of the horizontal wing 22 of the pins 20.

Referring to FIGS. 4 and 6, the combined structure of the fins 20 and the turbine mount 30 will be described with reference to FIGS. 4 and 6. A plurality of mount nuts 25 are embedded in each of the protruding portions 24 in a single or plural number. Preferably, the mount nut 25 is embedded in each of the protrusions 24 in plural numbers. Mounting nuts (25) and corresponding bolt holes are passed through the mount rim (32). The pins 20 and the turbine mount 30 are fastened to each other by the bolts B which are coupled to the mount nut 25 through the bolt holes of the mount rim 32 respectively.

The mount nut 25 has a structure in which one end is opened for screw connection with the bolt B and the other end is closed.

The water treatment turbine according to the embodiment of the present invention is installed in a state where the water is completely or partially submerged in water. When the driving shaft 40 of the turbine driving device is rotated, the driving shaft 40 rotates in the same direction as the driving shaft 40. At this time, the water flows into the flow paths between the body 10 and the fins 20 from the bottom, and is transported along the flow paths and then flows out to the periphery of the upper part (refer to FIG. 2).

Since the FRP body 10 and the FRP pins 20 are fastened to each other by the pins P while being adhered to each other by the adhesive agent A, The coupling force of the coupling portion of the body 10 and the fins 20 is applied to the load acting on the coupling portion of the body 10 and the fins 20 in the process of forcibly flowing water by applying kinetic energy to the water by the centrifugal force of the body 10 It is possible to more reliably prevent weakening.

Reference numeral W, which is not described in FIG. 6, is a weight balancer that adjusts the balance during rotation of the water treatment turbine according to the embodiment of the present invention.

The weight balancer W is inserted into any one or more of the mount nuts 25. The inserted weight balancer W is fixed in position by the urging action of the bolt B coupled to the mount nut 25. [

[Turbine Manufacturing Method]

The water treatment turbine according to the embodiment of the present invention is manufactured by manufacturing each of the body 10, the fins 20 and the turbine mount 30 and manufacturing the manufactured body 10, the fins 20, Assembling the turbine 30 to obtain a turbine, and then adjusting the balance in the rotation of the obtained turbine.

Production of the body 10

The body 10 is manufactured by a hand lay-up molding method.

A releasing agent for easy demoulding is applied to a mold having a shape corresponding to the body 10 and a gelcoat is applied on the applied releasing agent layer to smooth the surface of the body 10 to be produced.

Next, after the reinforcing fibers cut to the required size are laminated on the coated gel coat layer, the laminated reinforcing fibers are impregnated with a brush using a brush or the like, And the reinforcing fibers and the resin are uniformly pressed.

Then, after curing, demould form. Then, the body 10 having the ribs 12 formed with the body main body 11 and the insertion groove 13 is obtained. For reference, a heating device can be used for shortening the curing time.

In the manufacturing process of the turbine body 10, roving cloth, surface mat, chopped strand mat, etc. may be applied as the reinforcing fiber. The reinforcing fibers are laminated in multiple plies (for example, 7 plies). Two or more reinforcing fibers may be used. As the resin, an unsaturated polyester may be applied.

Meanwhile, the body 10 of the turbine may be manufactured by a spray-up molding method in which a resin and a chopped fiber are sprayed together using a spray gun.

Production of fin (20)

The fins 20 are manufactured by RTM (resin transfer molding) molding method and a dedicated mold (M in FIG. 7) having a cavity of a shape corresponding to the fin 20 is used do.

After the releasing agent is applied to the cavity of the mold M and the gel coat is applied, the reinforcing fibers and the mount nut 25 are disposed. A plurality of reinforcing fibers may be disposed on both sides of the cavity.

Next, resin is injected into the cavity. The resin injection process proceeds in such a manner that air is discharged from the cavity until the resin is completely filled in the entire cavity.

The pin 20 is then obtained which consists of a horizontal wing 22 with a vertical wing 21 with an insertion end 23 and a projection 24 with a mounting nut 25 embedded therein .

In the manufacturing step of the fin 20, a roving cloth, a continuous strand mat, or the like may be applied as the reinforcing fiber. Two or more reinforcing fibers may be used. As the resin, an unsaturated polyester can be applied.

Fabrication of turbine mount (30)

A turbine mount 30 composed of a boss 31, a mount rim 32 having bolt holes and a plurality of arms 33 is manufactured.

The turbine mount 30 may be coated with a coal tar epoxy paint after sanding.

Assembly of turbines

The insertion end portions 23 of the fins 20 formed in the insertion groove portion 13 of the ribs 12 of the manufactured body 10 are adhered to each other with the adhesive agent A being used. Then, the turbine body 10, 20 with the body 10 and the fins 20 is obtained.

It is preferable to clean the gel coat layer removing portion after removing the gel coat layer from the insertion grooves 13 and the insertion end portions 23 before bonding the body 10 and the fins 20. [

The process of bonding the body 10 and the fins 20 is performed by uniformly applying the adhesive A to the insertion grooves 13 and the insertion end portions 23 and then inserting the insertion end portions 13 23 are inserted, and then the pins 20 are firmly fixed so as not to move.

Next, the turbine mount 30 formed on the upper part of the obtained turbine main body 10, 20 is engaged to position the boss 31 on the center of the turbine main body 10, 20. Then, a water treatment turbine is obtained.

The coupling of the turbine bodies 10 and 20 and the turbine mount 30 proceeds by coupling the bolts B to the mount nuts 25 through the bolt holes of the mount rim 32 respectively.

The fastening of the body (10) and the fin (20)

The pins 10 and the pins 20 are structurally fastened by passing the pins P through the portions where the ribs 12 of the body 10 and the pins 20 are fitted to each other.

The holes 12 are punched in the portions where the ribs 12 and the fins 20 of the body 10 are fitted to each other and then the pin P is inserted into the perforated hole. For example, the perforated hole may be a female screw hole, and the pin P may have a male screw for engagement with a female screw hole. As another example, after inserting the pin P into the perforated hole, the perforated hole may be closed with an adhesive or the like.

Such engagement of the body 10 and the fins 20 may be accomplished prior to coupling the turbine mount 30 to the turbine bodies 10 and 20 and may include mounting the turbine mount 30 on the turbine bodies 10 and 20 Or after bonding.

Balancing

For the turbine obtained, balancing is adjusted by using a balancing machine.

First, an unbalanced portion is detected when the turbine rotates. For example, an unbalanced portion can be detected when the turbine rotates with the naked eye while slowly rotating the turbine.

Next, the weight balancer W is applied to the detected unbalanced portion. To this end, after removing the bolt (B) at the unbalanced portion, the weight balancer (W) is inserted into the mount nut (25) 25). ≪ / RTI > Alternatively, a groove may be formed on the uneven portion of the mount rim 32, and the groove may be filled with a resin as a weight balancer.

Topcoat

Finally, after the turbine is cleaned and the topcoat is applied, the production of the turbine is completed. The topcoat can repeat the brushing, drying and cleaning process.

[Assembly Jig]

An assembling jig according to an embodiment of the present invention is shown in Figs. 8 to 11. Fig.

The assembly jig according to the embodiment of the present invention is used in the turbine assembly process described above.

8 and 9, the assembly jig according to the embodiment of the present invention includes a base 110 on which the body 10 is placed, and a circular outer frame 120 connected to the upper portion of the base 110 A plurality of center side clamps 200 spaced apart from each other along the circumferential direction about the center of the main frame 100 at the center side of the base 110, A plurality of peripheral clamps 300 spaced apart from each other along the circumferential direction about the center of the main frame 100 at an upper portion of the main frame 100, A guide shaft 400 erected in a vertical direction, and a plurality of support members 500 disposed around the main frame 100.

The support members 500 are mounted at a middle portion of the outer frame 120 and are spaced apart from each other along the circumferential direction of the outer frame 120. The support members 500 support the body 10 placed on the base 110 around the body 10 to fix the position of the body 10.

The pins 20 are bonded and bonded to the body 10, which is fixed on the base 110 by the support members 500.

The central clamp 200 presses the fins 20 adhered to the body 10 from the inside to the outside with respect to the body 10 as shown in Fig. 10, and the peripheral clamps 300 push the fins 20 attached to the body 10 The fins 20 adhered to the body 10 are pressed against the body 10 from the upper side to the lower side. According to the pressing action of the clamps 200 and 300, the fins 20 adhered to the body 10 are fixed immovably. For example, a rubber material, a wood material, or a metal material may be interposed between the fins 20 and the clamps 200, 300 to prevent scratches or the like from being generated in the fins 20 due to the pressing action of the clamps 200, A buffer member made of synthetic resin or the like may be interposed.

The center side clamps 200 may include a clamp pin that can move linearly inward and outward. The peripheral clamps 300 may include a clamp lever which is rotatable in the up and down direction.

According to the assembly jig according to the embodiment of the present invention, the assembling process of the turbine can be performed quickly and accurately.

While the present invention has been described in connection with what is presently considered to be the most practical and preferred embodiments, it is to be understood that the invention is not limited to the disclosed embodiments, but, on the contrary, is intended to cover various modifications and equivalent arrangements included within the spirit and scope of the invention.

Further, the technical ideas described in the embodiments of the present invention may be performed independently of each other, or two or more may be implemented in combination with each other.

Claims (11)

Wherein a rib extending from a lower end portion to an upper end portion of the inner circumferential surface is disposed at an interval along the circumferential direction and the insertion groove portion is formed in the longitudinal direction of the rib, Fabricating a turbine body;
Fabricating a fin of a turbine having a vertical blade having an insertion end corresponding to the insertion groove at the base and a horizontal blade extending from the tip of the vertical blade;
The insertion end portions of the fins formed in the insertion groove portion of the ribs of the manufactured body are adhered to each other while being fitted to each other using an adhesive in a state where the body of the turbine is seated on the base of the assembly jig, Obtaining a turbine body;
After the step of obtaining the turbine main body, at least one pin is passed through each of the ribs and the portions where the fins are bonded to each other to fasten the body and the fins;
Fabricating a turbine mount having a boss coupled to a drive shaft of the turbine drive;
Assembling the turbine mount fabricated on the turbine body to obtain a turbine in which the boss is located in the center of the turbine body after the step of acquiring the turbine body,
A method for manufacturing a turbine, the method comprising: flowing water from a lower part for water treatment and flowing out around the upper part for forced flow;
The assembly jig includes:
A main frame having a base on which the body of the water treatment turbine is placed;
A plurality of fins of the turbine, which are disposed at the center of the main frame and spaced along the circumferential direction around the center of the main frame and are coupled to the inner circumference of the body in the circumferential direction at intervals, A plurality of center-side clamps for urging outwardly from the center side;
The fins are spaced apart from each other in the circumferential direction around the center of the main frame and spaced along the circumference of the body in the circumference of the main frame, A plurality of peripheral clamps for pressing;
And a guide shaft disposed at a center of the main frame and into which a boss of a turbine mount to be coupled to the pins is fitted. delete The method according to claim 1,
Wherein each of the fins has at least one mount nut buried on the horizontal wing in the step of manufacturing the fin,
The turbine mount
A mount rim in which the boss is positioned at a central portion in an assembling step of the turbine mount, and an arm connecting the mount rim and the boss,
The turbine mount being coupled to the mount nuts of the fins by bolts penetrating through the mount rims, respectively,
A turbine manufacturing method. The method of claim 3,
Further comprising adjusting a balance during rotation of the turbine obtained,
A turbine manufacturing method. delete delete The method according to claim 1,
The body of the turbine is a body of fiber reinforced plastic (FRP) manufactured by a hand lay up molding method,
Each of the fins of the turbine is a fin of FRP manufactured by RTM (resin transfer molding)
A turbine manufacturing method. delete A main frame having a base on which the body of the water treatment turbine is placed;
A plurality of fins of the turbine, which are disposed at the center of the main frame and spaced along the circumferential direction around the center of the main frame and are coupled to the inner circumference of the body in the circumferential direction at intervals, A plurality of center-side clamps for urging outwardly from the center side;
The fins are spaced apart from each other in the circumferential direction around the center of the main frame and spaced along the circumference of the main body in the circumference of the main frame. A plurality of peripheral clamps for pressing;
And a guide shaft disposed at a center of the main frame and into which a boss of a turbine mount to be coupled to the pins is fitted,
Assembly jigs for manufacturing turbines. The method of claim 9,
Further comprising a plurality of support members for supporting an outer periphery of the body placed on the base around the main frame,
Assembly jigs for manufacturing turbines. delete

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