Filter assembly and foreign matter discharge device including same

Abstract

To provide a filter built-up body capable of effectively filtering foreign matters included in an oil body, and to provide a foreign matter discharge device including that body.SOLUTION: A filter built-up body in this invention includes: a housing forming a flow channel so that a fluid moves along a first direction or a second direction reverse to the first one; a plate inserted in the housing and having a formed through-hole; and a plurality of protrusions provided in a protruding condition from the plate toward the second direction. The through-hole comprises a main hole formed in the plate center and a plurality of nozzles arranged so as to surround the main hole.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The present invention relates to a filter assembly and a foreign matter discharge device including the same, and more particularly to a filter assembly and a foreign matter discharge device including the same, in which protrusions protruding in the opposite direction to the flow direction of the fluid can effectively filter out foreign matter contained in the fluid. [Background technology]

[0002] When a fluid circulates along a pipe and is passed to a heat exchanger or a foreign matter discharger, foreign matter contained in the fluid may clog the pump or pipe, preventing smooth movement of the fluid within the foreign matter discharger. Summary of the Invention [Problem to be solved by the invention]

[0003] An object of the present invention is to provide a filter assembly and a foreign matter discharge device including the same, in which protrusions protruding in the opposite direction to the flow direction of a fluid can effectively filter foreign matter contained in an oil body. [Means for solving the problem]

[0004] A filter assembly according to the present invention includes a housing that forms a flow path so that a fluid moves along a first direction or a second direction opposite to the first direction; a plate that is inserted into the housing and has a through hole formed therein; and a plurality of protrusions that protrude from the plate in the second direction, the through hole comprising a main hole formed in the center of the plate and a plurality of injection holes arranged to surround the main hole.

[0005] A foreign matter discharge device according to one embodiment of the present invention includes a housing that forms a flow path for a fluid to move along a first direction or a second direction opposite to the first direction, a plate that is inserted into the housing and has a through hole formed therein, and a filter assembly that includes a plurality of protrusions that protrude from the plate in the second direction; a pump that selectively moves the fluid in the second direction; a tank that stores the wastewater as the wastewater moves in the first direction or the second direction; and a filter assembly that communicates with the pump to provide a path for the wastewater to move and that includes a filter assembly. and a pipe into which the filter assembly is inserted, wherein the through hole comprises a main hole formed in the center of the plate and a plurality of injection holes arranged to surround the main hole, and the pipe comprises an inlet pipe that guides sewage to be drawn from outside the tank into the inside of the tank, and a first pipe that has one end connected to the pump and the other end through which sewage is discharged to the outside of the tank, and the inlet pipe is branched off from a portion of the first pipe located between the filter assembly and the other end of the first pipe. [Brief explanation of the drawings]

[0006] [Figure 1] 1 is a cross-sectional view of a filter assembly according to one embodiment of the present invention. [Figure 2] FIG. 10 shows a filter assembly having a plate and multiple protrusions. [Figure 3] 1A-1C are diagrams illustrating various configurations of a filter assembly according to an embodiment of the present invention. [Figure 4] 1A-1C are diagrams illustrating various configurations of a filter assembly according to an embodiment of the present invention. [Figure 5] 1A-1C are diagrams illustrating various configurations of a filter assembly according to an embodiment of the present invention. [Figure 6] 1A-1C are diagrams illustrating various configurations of a filter assembly according to an embodiment of the present invention. [Figure 7] 1A-1C are diagrams illustrating various configurations of a filter assembly according to an embodiment of the present invention. [Figure 8]1A-1C are diagrams illustrating various configurations of a filter assembly according to an embodiment of the present invention. [Figure 9] 1A-1C are diagrams illustrating various configurations of a filter assembly according to an embodiment of the present invention. [Figure 10] 10A-10C show various configurations of a foreign body discharge device including an auxiliary filter or an auxiliary inlet. [Figure 11] 10A-10C show various configurations of a foreign body discharge device including an auxiliary filter or an auxiliary inlet. [Figure 12] 10A-10C show various configurations of a foreign body discharge device including an auxiliary filter or an auxiliary inlet. [Figure 13] 10A and 10B are diagrams showing the structure of an auxiliary pipe that is opened and closed by a cover. [Figure 14] 10A-10C show various embodiments in which the auxiliary filter is cleaned. [Figure 15] 10A-10C show various embodiments in which the auxiliary filter is cleaned. [Figure 16] 10A-10C show various embodiments in which the auxiliary filter is cleaned. [Figure 17] 1A to 1C are diagrams showing various configurations of a foreign body discharge device provided with two pumps. [Figure 18] 1A to 1C are diagrams showing various configurations of a foreign body discharge device provided with two pumps. [Figure 19] 1A to 1C are diagrams showing various configurations of a foreign body discharge device provided with two pumps. [Figure 20] 5A to 5C are diagrams illustrating the operation of a check device according to an embodiment of the present invention. [Figure 21] 5A to 5C are diagrams illustrating the operation of a check device according to an embodiment of the present invention. [Figure 22] 5A to 5C are diagrams illustrating the operation of a check device according to an embodiment of the present invention. [Figure 23] FIG. 1 is a diagram illustrating a foreign body discharge device in which a fluid circulates. [Figure 24] 10 is a cross-sectional view showing an example in which guide vanes are coupled to a filter assembly according to an embodiment of the present invention; DETAILED DESCRIPTION OF THE INVENTION

[0007] The embodiments described below are illustrative to aid in understanding the present invention, and it will be understood that the present invention can be implemented in various forms different from the embodiments described herein. However, in describing the present invention below, if a specific description of related known functions or components is deemed to obscure the gist of the present invention, such detailed description and specific illustration will be omitted. In addition, the accompanying drawings may not be drawn to scale, and the dimensions of some components may be exaggerated to aid in understanding the invention.

[0008] The terms used in this specification and claims are general terms selected in consideration of the functions of the present invention. However, such terms may change depending on the intentions of engineers in the art, legal or technical analysis, and the emergence of new technologies. In addition, some terms are arbitrarily selected by the applicant. Such terms are interpreted as having the meaning defined in this specification, and if a specific term is not defined, they may be interpreted based on the general content of this specification and common general technical knowledge in the relevant technical field.

[0009] In this specification, the terms "have," "can have," "include," or "can include" indicate the presence of a given feature (e.g., a value, function, operation, or component such as a part) and do not exclude the presence of additional features.

[0010] The present specification describes components necessary for explaining each embodiment of the present invention, but the present invention is not limited to these. Therefore, some components may be changed or omitted, and other components may be added. Furthermore, the components may be distributed and arranged in different independent devices.

[0011] Furthermore, the following describes in detail the embodiments of the present invention with reference to the accompanying drawings and the contents described in the accompanying drawings, but the present invention is not limited or restricted by the embodiments.

[0012] The present invention will now be described in detail with reference to the accompanying drawings.

[0013] Fig. 1 is a cross-sectional view of a filter assembly according to an embodiment of the present invention, and Fig. 2 is a diagram showing a filter assembly including a plate and a plurality of protrusions.

[0014] As shown in FIGS. 1 and 2, a filter assembly 1 according to an embodiment of the present invention includes a plate 10 , a plurality of protrusions 20 , and a housing 30 .

[0015] The housing 30 forms a flow path for fluid to move along a first direction (I) or a second direction opposite to the first direction. The plate 10 is inserted into the housing 30, and through holes 11 and 12 are formed. A plurality of protrusions 20 protrude from the plate 10 in the second direction (O).

[0016] When the fluid flows in the first direction (I), foreign matter (A) contained in the fluid is caught by the protrusions 20 and is collected in the filter assembly 1.

[0017] When the fluid flows in the second direction (O), the foreign matter (A) caught on the protrusions 20 is released from the protrusions 20 and removed together with the fluid.

[0018] The through holes 11, 12 include a main hole 11 formed in the center of the plate 10 and a plurality of injection holes 12 arranged to surround the main hole 11. The plurality of injection holes 12 are arranged between the plurality of protrusions 20.

[0019] Most of the fluid flows in the first direction (I) and passes through the main hole 11. When the fluid flows in the second direction (O), the fluid passes through the injection hole 12 and can remove the foreign matter (A) caught on the protrusion 20.

[0020] The multiple injection holes 12 have cross-sectional areas that gradually decrease along the second direction (O). One end 12a of each injection hole 12 on the first direction (I) side has a first diameter (d1), and the other end 12b on the second direction (O) side has a second diameter (d2), and the first diameter (d1) is larger than the second diameter (d2).

[0021] As a result, the pressure and speed of the fluid flowing in the second direction (O) increases as it passes through the injection holes 12, so that the foreign matter (A) caught on the protrusions 20 can be removed more easily.

[0022] 3 to 9 are diagrams schematically illustrating various structures of a filter assembly according to an embodiment of the present invention.

[0023] 3, at least some 20a of the plurality of protrusions 20 are formed to be inclined toward the main hole 11. This makes it possible to prevent the foreign matter (A) from passing through the main hole 11, which has a large diameter.

[0024] 4, at least some of the plurality of protrusions 20 have one end 21 bent. The one end 21 of the bent protrusions 20 is the part of the protrusions 20 that is farthest from the plate 10. This increases the area covered by the protrusions 20, allowing the protrusions 20 to more easily filter out foreign matter (A).

[0025] 5 and 6, at least some of the plurality of protrusions 20 include auxiliary protrusions 22 protruding from each side surface in the second direction (O). The auxiliary protrusions 22 are formed to be inclined upward as they are farther away from the side surface of the protrusion 20. This increases the area covered by the protrusions 20, allowing the protrusions 20 to more easily filter out foreign matter (A).

[0026] 7, at least some of the plurality of protrusions 20 include radial protrusions 23 formed at one end 21. The radial protrusions 23 are provided in plurality and have a shape that spreads radially from one end 21 of the protrusions 20. Therefore, the area covered by the protrusions 20 increases, and the protrusions 20 can more easily filter out foreign matter (A).

[0027] As shown in FIG. 8(a), the multiple protrusions 20 are formed perpendicular to the plate 10. As shown in FIG. 8(b), all of the multiple protrusions 20 are formed so as to be inclined toward the main hole 11. As shown in FIG. 8(c), all of the multiple protrusions 20 are inclined toward the main hole 11, with some of the protrusions being inclined more steeply than the other protrusions. This makes it possible to prevent foreign matter (A) from passing through the main hole 11, which has a large diameter. Furthermore, by increasing the area covered by the protrusions 20, the protrusions 20 can more easily filter out the foreign matter (A).

[0028] As shown in Figure 9(a), four main holes 11 are provided on the top, bottom, left and right sides of the plate 10, five injection holes 12 are provided between the main holes 11, and multiple protrusions 20 are formed at an angle toward each main hole 11.

[0029] As shown in Figure 9(b), one main hole 11 is provided in the center of the plate 10, and six other main holes 11 surround it and are arranged in the circumferential direction. The injection holes 12 include first injection holes 12a arranged between the six main holes 11 and second injection holes 12b surrounding the centrally located main hole 11. The protrusions 20 are formed at an angle along each main hole 11.

[0030] As shown in Figure 9(c), one large main hole 11a is provided in the center of the plate 10, and six small main holes 11b surround it and are arranged in the circumferential direction. The injection holes 12 are arranged between the six main holes 11b. The protrusions 20 are arranged to surround each of the six main holes 11b.

[0031] However, the structure of the filter assembly 1 described above is merely an example, and the shapes and numbers of the main hole 11, the injection holes 12, and the protrusions 20 are not limited to these.

[0032] 10 to 12 are diagrams showing various structures of foreign matter discharge devices including an auxiliary filter or an auxiliary inlet.

[0033] 10 to 12, a foreign matter discharge device 1000 according to one embodiment of the present invention includes the above-described filter assembly 1 and a pump 200. The pump 200 can selectively move a fluid in a second direction (O). That is, when the pump 200 is operated, the fluid flows in the second direction (O), and foreign matter trapped in the filter assembly 1 can be removed.

[0034] For example, the foreign matter discharge device 1000 is a wastewater discharge device. The wastewater discharge device is located underground in a building or the like, stores wastewater generated in the building in a tank 100, and then uses a pump 200 to discharge the wastewater to the outside.

[0035] A foreign matter discharge device 1000 according to one embodiment of the present invention includes a tank 100 and pipes 301 and 310. The tank 100 draws in and discharges wastewater. The pipes 301 and 310 communicate with a pump 200, provide a path for wastewater to travel, and a filter assembly 1 is inserted into the pipes 301 and 310. The pump 200 includes a lower hole 200a, so that wastewater traveling along the pipes 301 and 310 passes through the pump 200 and is drawn into the tank 100 via the lower hole 200a.

[0036] Furthermore, while the wastewater flows along the pipes 301 and 310, foreign matter contained in the wastewater is filtered by the filter assembly 1.

[0037] For example, the foreign object discharge device 1000 according to one embodiment of the present invention includes an inlet pipe 301 and a first pipe 310 .

[0038] The wastewater is drawn from the outside of the tank 100 into the inside of the tank 100 via the intake pipe 301.

[0039] The first pipe 310 communicates with the inlet pipe 301. One end 311a, 311b of the first pipe 310 branches and communicates with the pump 200 and the inside of the tank 100, respectively. The wastewater is discharged from the other end 312 of the first pipe 310 to the outside of the tank 100.

[0040] That is, part of the wastewater drawn into the tank 100 passes through the pump 200 and moves into the tank 100, and part of the wastewater passes through the pump 200 and moves into the tank 100 without passing through the pump 200. This allows the wastewater to be drawn into the tank 100 quickly via two routes.

[0041] One end 311 of the first pipe 310 includes a first drain portion 311 a that communicates with the pump 200 and a second drain portion 311 b that communicates with the interior of the tank 100 .

[0042] That is, the dirty water is drawn along the flow path I1 formed by the first drainage section 311a, and drawn along the path I2 formed by the second drainage section 311b.

[0043] The foreign matter discharge device 1000 further includes a valve device 400 that selectively opens and closes the second drain portion 311b. The valve device 400 can close the second drain portion 311b only when the pump 200 is driven.

[0044] That is, normally, when the pump 200 is not driven, the valve device 400 opens the second drain part 311b, so that the wastewater is smoothly drawn into the tank 100.

[0045] On the other hand, when the pump 200 is driven, the wastewater stored in the tank 100 is discharged from the tank 100 via the pump 200 and the first pipe 310. Here, because the valve device 400 closes the second drain portion 311b, the wastewater moves along the first drain portion 311b and is easily discharged toward the other end 312 of the first pipe 310 without leaking into the second drain portion 311b.

[0046] The lead-in pipe 301 has an open upper end and includes an auxiliary hole 301 a that communicates with the interior of the tank 100 .

[0047] That is, the wastewater flowing in the inlet pipe 301 is drawn into the tank 100 by gravity through one end 311a, 311b of the first pipe 310. In this case, a portion of the wastewater flowing in the inlet pipe 301 passes through the auxiliary hole 301a and is drawn into the tank 100. As a result, when a large amount of wastewater is drawn into the inlet pipe 301, the wastewater is drawn into the tank 100 through the auxiliary hole 301a, thereby preventing the accumulation of wastewater.

[0048] Furthermore, when the pump 200 is driven, the check device 500 is closed, and the wastewater in the tank 100 is discharged to the outside of the tank 100 via the first pipe 310. With the check device 500 closed in this manner, the wastewater flowing into the inlet pipe 301 passes through the auxiliary hole 301a and is smoothly drawn into the tank 100.

[0049] The filter assembly 1a, 1b includes a main filter 1a inserted into the first pipe 310 and an auxiliary filter 1b inserted into the auxiliary hole 301a.

[0050] As a result, foreign matter in the wastewater drawn in through the auxiliary hole 301a is filtered by the auxiliary filter 1b, so that the foreign matter can be prevented from flowing into the tank 100.

[0051] 12, the pump 200 is disposed outside the tank 100. Here, one section of the first drainage section 311a may be disposed outside the tank to pass through the pump 200. Because the pump 200 is disposed outside the tank 100, a normal pump can be used instead of a submersible pump, thereby reducing costs.

[0052] FIG. 13 is a diagram showing the structure of an auxiliary pipe that is opened and closed by a cover.

[0053] As shown in FIG. 13, a filter assembly 1 according to an embodiment of the present invention includes an auxiliary pipe 40 and a cover 41.

[0054] The auxiliary pipe 40 is located inside the tank 100 with one end 40a communicating with the side surface of the housing 30 and the other end 40b in an open state.

[0055] One end 41a of the cover 41 is rotatably connected to the underside of one end 40a of the auxiliary pipe, so that one end 40a of the auxiliary pipe can be selectively opened and closed.

[0056] Specifically, the cover 41 is disposed on the inlet and outlet flow paths, and rotates when pushed by the wastewater flowing in the inlet direction (I) or the outlet direction (O).

[0057] That is, when the pump 200 is operated, the cover 41 is rotated in a first direction (R1) by the sewage flowing in the discharge direction (O) to close one end 40a of the auxiliary pipe 40. Also, when the pump 200 is operated, the cover 41 is rotated in a second direction (R2) by the sewage flowing in the retraction direction (I) to open one end 40a of the auxiliary pipe 40.

[0058] As a result, part of the wastewater drawn in through the pipes 301 and 310 does not flow to the pump 200 but flows directly into the tank 100 through the auxiliary pipe 40.

[0059] Furthermore, as mentioned above, when the pump 200 is operating, the cover 41 closes one end 40a of the auxiliary pipe 40, so that the wastewater does not flow out through the auxiliary pipe 40 but is discharged stably outside the tank 100.

[0060] Furthermore, the auxiliary pipe 40 is disposed downstream of the plate 10 in the direction (I) of wastewater intake. As a result, foreign matter in the wastewater is filtered first by the multiple protrusions 20, and only wastewater that does not contain foreign matter flows into the tank 100 via the auxiliary pipe 40.

[0061] The auxiliary pipe 40 provides a bypass path for the drawn-in wastewater, so that the wastewater is dispersed through the auxiliary pipe 40 and drawn into the tank 100 without passing through the drainage pump 200.

[0062] When the amount of wastewater drawn in is large, a portion of the drawn wastewater can flow directly into the tank 100 via the auxiliary pipe 40, thereby preventing the wastewater from accumulating in the pipes.

[0063] 14 to 16 show various embodiments in which the auxiliary filter can be washed.

[0064] As shown in FIG. 14, the first pipe 310 branches off from the other end 312, opens toward the auxiliary hole 301a, and includes a cleaning section 312-1 that is disposed above the auxiliary hole 301a.

[0065] As a result, when the pump 200 is operated, some of the discharged wastewater is drawn back into the tank 100 through the cleaning section 312-1, where the auxiliary filter 1b located below the cleaning section 312-1 is cleaned by the wastewater passing through the cleaning section 312-1.

[0066] The foreign matter discharge device 1000 further includes a valve device 400b that selectively opens and closes the cleaning unit 312-1. That is, the valve device 400b opens the cleaning unit 312-1 only when cleaning of the auxiliary filter 1b is required. When cleaning of the auxiliary filter 1b is not required, the valve device 400b closes the cleaning unit 312-1, thereby preventing wastewater from leaking into the cleaning unit 312-1 and allowing it to be smoothly discharged outside the tank 100.

[0067] 15, foreign matter discharge device 1000 further includes auxiliary pump 600 that sprays cleaning water downward toward auxiliary hole 301a. Auxiliary pump 600 is a submersible pump disposed within tank 100, and sprays wastewater stored in tank 100 toward auxiliary hole 301a. This periodically cleans auxiliary filter 1b, allowing wastewater to move smoothly into tank 100 via auxiliary hole 301a, preventing wastewater from accumulating.

[0068] Furthermore, when the pump 200 is driven, the check device 500 is closed, and the wastewater in the tank 100 is discharged to the outside of the tank 100 via the first pipe 310. In this way, when the check device 500 is closed, the wastewater flowing into the inlet pipe 301 passes through the auxiliary hole 301a and is smoothly drawn into the tank 100.

[0069] As shown in Figure 16, pump 200 is disposed outside tank 100. Sewage is drawn in from outside tank 100 through inlet pipe 301. First pipe 310 is disposed outside tank 100, with one end 311a communicating with the inside of tank 100 via pump 200, and the other end 312 from which sewage is discharged.

[0070] The lead-in pipe 301 is branched at one region to include a first connecting portion 301a and a second connecting portion 301b which communicate with the first pipe 310 and the inside of the tank 100, respectively.

[0071] The filter assembly includes a main filter 1a inserted into the first pipe 310 and an auxiliary filter 1b inserted into the second connecting portion 301b.

[0072] The first pipe 310 branches off from the other end 312 and includes a cleaning section 312-1 that communicates with the second connecting section 301b.

[0073] A portion of the drawn-in wastewater is drawn into the tank 100 via the second connecting portion 301b, thereby preventing the accumulation of wastewater. In addition, an auxiliary filter 1b is disposed in the second connecting portion 301b, preventing foreign matter from entering the inside of the tank 100. In addition, a portion of the discharged wastewater washes the auxiliary filter 1b along the cleaning portion 312-1, thereby maintaining the flow rate of the drawn-in wastewater.

[0074] Furthermore, when the pump 200 is driven, the check device 500 is closed, and the wastewater in the tank 100 is discharged to the outside of the tank 100 via the first pipe 310. In this way, when the check device 500 is closed, the wastewater flowing into the inlet pipe 301 passes through the auxiliary hole 301a and is smoothly drawn into the tank 100.

[0075] 17 to 19 are diagrams showing various structures of a foreign matter discharge device provided with two pumps.

[0076] 17 to 19, the pump 200 includes a first pump 200-1 and a second pump 200-2. The foreign body removal device 1000 includes a first pipe 310, a second pipe 320, and an inlet pipe 301.

[0077] One end 311 of the first pipe 310 is connected to the first pump 200-1, and the other end 312 is used to discharge wastewater outside the tank 100.

[0078] The second pipe 320 has one end 321 connected to the second pump 200-2 and the other end 322 from which the wastewater is discharged to the outside of the tank 100.

[0079] The intake pipe 301 draws wastewater from the outside of the tank 100 into one end, and the other end branches off to communicate with a first pipe 310 and a second pipe 320, respectively.

[0080] The filter assemblies 1-1 and 1-2 are disposed in a first pipe 310 and a second pipe 320, respectively.

[0081] As a result, wastewater is drawn in and filtered by the two filter assemblies 1-1 and 1-2. After that, when the two pumps 200-1 and 200-2 are driven, the foreign matter trapped in the filter assemblies 1-1 and 1-2 is discharged to the outside of the tank 100 by the discharged wastewater.

[0082] 18 and 19, one end 311 of the first pipe 310 includes a first drainage portion 311a communicating with the first pump 200-1 and a second drainage portion 311b communicating with the interior of the tank 100. Similarly, one end 321 of the second pipe 320 includes a third drainage portion 321a communicating with the second pump 200-2 and a fourth drainage portion 321b communicating with the interior of the tank 100. The foreign matter discharge device 1000 further includes a first valve device 400a that selectively opens and closes the second drainage portion 311b and a second valve device 400b that selectively opens and closes the fourth drainage portion 321b.

[0083] As a result, a portion of the drawn-in wastewater is drawn directly into the tank 100 via the second drainage section 311b and the fourth drainage section 321b without passing through the pumps 200-1 and 200-2, thereby preventing the accumulation of wastewater.

[0084] When the first pump 200-1 is driven, the first valve device 400a closes the second drain part 311b, and when the second pump 200-2 is driven, the second valve device 400b closes the fourth drain part 321b.

[0085] This makes it possible to prevent the discharged wastewater from returning into the tank 100 again via the second drainage part 311b or the fourth drainage part 321b.

[0086] As shown in FIG. 18, the first and second pumps 200-1, 200-2 are arranged inside the tank 100, but this is not limited thereto, and as shown in FIG. 19, the first and second pumps 200-1, 200-2 can also be arranged outside the tank 100.

[0087] 20 to 22 are diagrams illustrating the operation of a check device according to one embodiment of the present invention.

[0088] Specifically, Figure 20 is an oblique view of a check device 500 according to one embodiment of the present invention, and Figures 21 and 22 are cross-sectional views showing the operation of the check device 500 when the pump 200 is not operating and when it is operating, respectively.

[0089] As shown in FIGS. 20 to 22, the check device 500 includes a main body 510 having open ends 511 and 512, and a disk 520 rotatably connected to one end 511 of the main body 510.

[0090] The check device 500 can allow wastewater to flow only in the inlet direction (I) in a specific area of ​​the pipes 301 and 310. The check device 500 is horizontally disposed at the point where the inlet pipe 301 meets the first and second pipes 310 and 320, and can prevent the backflow of wastewater discharged by the pump 200.

[0091] The check device 500 has a generally cylindrical shape, but is not limited to this, and may have various shapes such as a square prism or a triangular prism depending on the shape and use of the pipes 301, 310.

[0092] The main body 510 is formed with a downstream end 511 inclined upward along the wastewater inlet direction (I) based on the inlet direction (I). The disk 520 has a shape corresponding to the end 511 of the main body 510, and an upper end 521 is rotatably hinged to the main body 510.

[0093] As shown in FIG. 21, when the pump 200 is not operating, the disk 520 is positioned vertically due to its own weight, which causes wastewater to flow in the inlet direction (I) between the disk 520 and one end 511 of the main body 510.

[0094] Furthermore, although not shown, the disk 520 is pushed by the drawn-in wastewater and rotates in one direction (clockwise in FIG. 20), thereby allowing the wastewater to flow more smoothly in the drawing-in direction (I).

[0095] When the pump 200 is operating, the disk 520 is pushed by a portion of the discharged wastewater and rotates in one direction (counterclockwise in FIG. 22), thereby closing one end 511 of the main body 510.

[0096] As a result, the wastewater discharged by the pump 200 is stably discharged to the outside of the tank 100 via the first and second pipes 310, 320 without backflowing.

[0097] Foreign matter (A) in the discharged wastewater adheres to the disc 520 while the pump 200 is operating, and when the drainage pump 200 stops operating, it falls under its own weight onto one end 511 of the main body 510 having the aforementioned inclination and the underside of the closed disc 520.

[0098] As a result, the foreign matter (A) does not accumulate in the check device 500 while adhering to the disc 520, and the disc 520 can easily rotate and open one end 511 of the main body 510, thereby more efficiently preventing the backflow of discharged wastewater.

[0099] FIG. 23 is a diagram schematically illustrating a foreign body discharge device in which a fluid circulates.

[0100] As shown in FIG. 23, the foreign matter discharge device 1000 includes a pipe 300, an inlet pipe 310, a discharge pipe 320, a first valve device 400a, and a second valve device 400b.

[0101] The pipe 300 provides a path for circulating a fluid. For example, the fluid circulates along the pipe 300, and its temperature is changed by the target device 700 and the heat exchanger 800. For example, the target device 700 is a device that maintains a constant water temperature, such as a bathroom or a swimming pool. For example, the fluid can circulate by removing heat from the target device 700 and then receiving heat from the heat exchanger 800. The fluid circulates along the pipe 300 by a circulation pump (P). However, the target device 700 and the heat exchanger 800 are not limited to the above examples, and the fluid can also circulate along the pipe 300 without heat exchange.

[0102] The intake pipe 310 draws cleaning water from the outside by the pump 200, and one end of the intake pipe 310 communicates with the first point 300a of the pipe 300.

[0103] One end of the outlet pipe 320 communicates with a second point 300b of the pipe, which is upstream of the first point 300a.

[0104] The first valve device 400a can selectively open or close one of one end of the inlet pipe 310 and the downstream side of the first point 300a.

[0105] The second valve device 400b can selectively open or close one of one end of the discharge pipe 320 and the upstream side of the second point 300b.

[0106] The filter assembly 1 is inserted into the pipe 300 between a first point 300a and a second point 300b.

[0107] For example, when the circulation pump (P) is operating and the fluid is circulating, the first valve device 400a closes one end of the inlet pipe 310 and the second valve device 400b closes one end of the outlet pipe 320.

[0108] As a result, the circulating fluid does not leak to the outside and can circulate stably along the pipe 300. During this time, foreign matter contained in the fluid is filtered by the filter assembly 1.

[0109] When cleaning of the filter assembly 1 is required, the first valve device 400a closes the downstream side of the first point 300a, and the second valve device 400b closes the upstream side of the second point 300b. Thereafter, the pump 200 is driven, and cleaning water passes through the inlet pipe 310, between the first point 300a and the second point 300b of the pipe 300, and the discharge pipe 320, thereby discharging the foreign matter filtered by the filter assembly 1 to the outside of the pipe 300.

[0110] FIG. 24 is a cross-sectional view showing an example in which guide vanes are coupled to a filter assembly according to an embodiment of the present invention.

[0111] 24, the filter assembly 1' has a plate 10' disposed on the floor of a housing 30' and a plurality of protrusions 20' disposed on the plate 10'. One side of the housing 30' is provided with a sewage inlet 30a' into which sewage flows, and the upper side of the housing 30' is provided with a sewage outlet 30b' through which sewage is discharged to the outside.

[0112] The filter assembly 1' has the same configuration as the filter assembly 1 described above, but differs from the filter assembly 1 in that a guide vane 34' is disposed below the housing 30'.

[0113] The guide vane 34' is disposed in an auxiliary housing 32' connected to the lower part of the housing 30' by a flange connection method. The guide vane 34' can uniformly distribute wastewater flowing into the auxiliary housing 32' through the first port 37' connected to the pump 200 and the multiple holes 33' over the entire area of ​​the plate 10'.

[0114] As a result, the wastewater flowing from the auxiliary housing 32' into the housing 30' is dispersed evenly without being concentrated in a part of the many holes 10a' of the plate 10', thereby maintaining a smooth flow.

[0115] In FIG. 24, reference numeral 39' denotes a second port for drawing wastewater into the tank 100 described above.

[0116] Although the preferred embodiments of the present invention have been illustrated and described above, the present invention is not limited to the specific embodiments described above, and various modifications can be made by anyone having ordinary skill in the art to which the invention pertains without departing from the gist of the present invention as claimed in the claims, and such modifications are within the scope of the claims. [Explanation of symbols]

[0117] 1 Filter assembly 1a Main filter 1b Auxiliary filter 1-1 Filter assembly 1-2 Filter assembly 10 plates 10' Plate 10a' hole 11 Through hole, main hole 11a Large main hole 11b Small main hole 12 Through hole, injection hole 12a First injection hole 12b Second injection hole 20 protrusions 20' protrusion 20a Inclined protrusion 21 One end of the protrusion 22 Auxiliary projection 23 Radial projection 30 Housing 30' Housing 30a' Sewage inlet 30b' Sewage discharge section 32' Auxiliary Housing 37' First Port 39' Second Port 40 Auxiliary pipe 41 Cover 100 Tanks 200 pump 200a lower hole 300 Pipes 300a First Location 300b Second Location 301 Pipes, lead-in pipes 301a First connecting part 301b Second connecting part 310 First pipe, lead-in pipe 311a One end of the first pipe, first drainage section 311b One end of the first pipe, second drainage section 312 other end of first pipe 320 Second pipe, discharge pipe 321 one end 322 other end 400 Valve Device 400a First valve device 400b Second valve device 500 Check Device 510 main unit 511 one end 512 other end 520 disc 521 Upper end 600 Auxiliary Pump 700 Target Device 800 Heat exchange equipment 1000 Foreign matter ejector O Second Direction I. First Direction A. Foreign body P Circulation Pump

Claims

1. a housing defining a flow path for fluid to move along a first direction or a second direction opposite the first direction; a plate inserted into the housing and having a through hole formed therein; a plurality of protrusions protruding from the plate in the second direction; The through hole is a main hole formed at the center of the plate; a plurality of injection holes arranged to surround the main hole.

2. 2. The filter assembly according to claim 1, wherein the plurality of injection holes have cross-sectional areas that progressively decrease along the second direction.

3. The filter assembly according to claim 1 , wherein at least some of the plurality of protrusions are formed to be inclined toward the main hole.

4. The filter assembly according to claim 1 , wherein one end of at least some of the plurality of protrusions is bent.

5. 2. The filter assembly according to claim 1, wherein at least a portion of the plurality of protrusions includes auxiliary protrusions protruding from each side surface in the second direction.

6. 2. The filter assembly according to claim 1, wherein at least some of the plurality of protrusions have a shape that spreads radially from one end.

7. a filter assembly including: a housing that forms a flow path for wastewater to move along a first direction or a second direction opposite to the first direction; a plate that is inserted into the housing and has a through hole formed therein; and a plurality of protrusions that protrude from the plate in the second direction; a pump for selectively moving wastewater in the second direction; a tank in which the wastewater is stored by moving the wastewater in the first direction or the second direction; a pipe communicating with the pump to provide a path for wastewater to travel and into which the filter assembly is inserted; The through hole is a main hole formed at the center of the plate; a plurality of injection holes arranged to surround the main hole, The pipe is An inlet pipe for guiding wastewater from the outside of the tank to the inside of the tank; a first pipe having one end connected to the pump and the other end through which wastewater is discharged to the outside of the tank; The foreign object discharge device according to claim 1, wherein the inlet pipe is branched off from a portion of the first pipe located between the filter assembly and the other end of the first pipe.

8. an auxiliary pipe, one end of which is connected to the side of the pipe and the other end of which is open and located within the tank; a cover rotatably connected to a lower side of one end of the auxiliary pipe; The auxiliary pipe is disposed downstream of the plate based on the direction in which the wastewater is drawn in, 8. The foreign object discharging device according to claim 7, wherein the cover closes one end of the auxiliary pipe when the pump is operating, and opens one end of the auxiliary pipe when the pump is not operating.

9. further comprising a check device disposed at a point where the inlet pipe and the first pipe meet; The non-return device includes a body that is open at both ends and a disk rotatably coupled to one end of the body; The foreign object discharging device according to claim 7, wherein one end of the body is inclined upward along a direction in which wastewater is drawn in.

10. one end of the first pipe includes a first drainage portion communicating with the pump and a second drainage portion communicating with an interior of the tank; 8. The foreign object discharging device according to claim 7, further comprising a valve device for selectively opening and closing the second drainage portion.

11. 8. The foreign object discharge device according to claim 7, wherein the inlet pipe has an open upper end and includes an auxiliary hole communicating with the inside of the tank, and the filter assembly is inserted into the first pipe and the auxiliary hole of the inlet pipe.

12. 12. The foreign object discharging device according to claim 11, wherein the first pipe has a cleaning portion branched off from the other end thereof, opening toward the auxiliary hole, and disposed above the auxiliary hole.

13. 13. The foreign matter discharge device according to claim 12, further comprising a valve device for selectively opening and closing the cleaning section.

14. 12. The foreign object discharging device according to claim 11, further comprising an auxiliary pump for spraying cleaning water downward toward the auxiliary hole.

15. the pump is disposed outside the tank; the inlet pipe includes a second connecting portion having a branched region, the second connecting portion being in communication with the first pipe and the inside of the tank, The filter assembly is inserted between the first pipe and the second connecting portion, 8. The foreign object discharging device according to claim 7, wherein the first pipe includes a cleaning section branched off from the other end and communicating with the second connecting section.

16. The pump further includes a first pump and a second pump, and a second pipe having one end connected to the second pump and the other end through which wastewater is discharged to the outside of the tank; The other end of the inlet pipe is branched and communicates with the first pipe and the second pipe, respectively.

8. The foreign object discharging device according to claim 7, wherein the filter assemblies are disposed in the first pipe and the second pipe, respectively.

17. one end of the first pipe includes a first drainage portion communicating with the first pump and a second drainage portion communicating with an interior of the tank; one end of the second pipe includes a third drainage portion communicating with the second pump and a fourth drainage portion communicating with an interior of the tank; 17. The foreign object discharging device according to claim 16, further comprising a first valve device for selectively opening and closing the second drainage portion, and a second valve device for selectively opening and closing the fourth drainage portion.

18. The intake pipe has one end connected to a first point of the first pipe, a discharge pipe having one end communicating with a second point upstream of the first point of the first pipe; a first valve device for selectively opening and closing one of the ends of the intake pipe and the downstream side of the first point; a second valve device selectively opening and closing one of the end of the discharge pipe and the upstream side of the second point; 8. The foreign object discharging device according to claim 7, wherein the filter assembly is inserted between the first point and the second point of the first pipe.

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