Self-cleaning filtering device and system for water turbine

Abstract

The utility model discloses a self-cleaning filtering device and system used for a water turbine, the self-cleaning filtering device used for the water turbine comprises a shell, a filtering piece, an unblocking unit, an opening and closing unit and a monitoring unit, the shell comprises an outer shell, the outer shell is provided with a cavity, and the filtering piece is arranged in the cavity; a water inlet, a water outlet and a drain outlet which are communicated with the cavity are formed in the shell; the filtering piece is arranged in the cavity, the inlet end of the filtering piece is communicated with the water inlet and the sewage draining exit, and the outlet end of the filtering piece is communicated with the water outlet. The self-cleaning water turbine has the advantages that silt or broken stone in water can be filtered through the filtering part and prevented from entering the water turbine, the working state of the filtering part can be monitored in real time through the monitoring unit, after the filtering part is blocked, the self-cleaning function of the filtering part can be achieved through the blocking clearing unit, and the service life of the filtering part is prolonged. Manual regular blockage cleaning for the filtering piece is not needed, and the operation is very convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of hydropower generation, in particular to a self-cleaning filtering device and system for a water turbine. Background Art

[0002] A water turbine is a power machine that converts the energy of water flow into rotational mechanical energy. It is widely used in hydropower stations to drive generators to generate electricity. In a hydropower station, water in the upstream reservoir is led to the water turbine through a water diversion pipe, which pushes the runner of the water turbine to rotate and drives the generator to generate electricity.

[0003] When the existing water turbine (such as a water turbine guide vane mechanism disclosed in the application number 202221317638.4) is in use, the water introduced into the water turbine carries sediment or gravel. When the sediment or gravel enters the water turbine, it not only easily wears the guide vanes and runner of the water turbine, but also easily blocks the pipeline. Since there is no filtering system at the inlet end of the water turbine, the sediment or gravel cannot be filtered. At the inlet end of a small number of water turbines, a filter screen is set to intercept the sediment or gravel, but the sediment easily blocks the mesh holes, and it is necessary to clean the filter screen manually at regular intervals, which is rather troublesome. Summary of the Utility Model

[0004] The purpose of the utility model is to overcome the above technical deficiencies and propose a self-cleaning filtering device and system for a water turbine, so as to solve the technical problem that in the prior art, when a filter screen is set at the inlet end of the water turbine to intercept sediment or gravel, it is necessary to clean the filter screen manually at regular intervals, which is rather troublesome.

[0005] To achieve the above technical purpose, the technical solution of the utility model provides a self-cleaning filtering device for a water turbine, including:

[0006] A housing, which includes an outer shell. The outer shell has a cavity, and an inlet, an outlet and a sewage outlet communicating with the cavity are opened on the outer shell;

[0007] A filter element, which is arranged in the cavity. Its inlet end is communicated with the inlet and the sewage outlet, and its outlet end is communicated with the outlet;

[0008] A clogging cleaning unit, which is used for cleaning the clogging of the filter element;

[0009] An opening and closing unit, which is used for opening or closing the sewage outlet;

[0010] A monitoring unit, which is electrically connected with both the clogging cleaning unit and the opening and closing unit, and is used for collecting and analyzing the pressure values at the inlet and the outlet.

[0011] Further, the water inlet is located at the top of the housing, and the water outlet and the sewage outlet are both located at the bottom of the housing.

[0012] Further, the diameter of the water outlet is larger than that of the sewage outlet.

[0013] Further, the filter element is of a tubular structure.

[0014] Further, the housing is of a tubular structure. The housing further includes a first partition, a second partition and a third partition. The first partition, the second partition and the third partition are all fixedly arranged at intervals along the axial direction of the housing in the cavity, so as to sequentially separate an inlet cavity, a filtering cavity, a sewage cavity and a receiving cavity in the cavity. A first through hole is formed in the first partition, and the first through hole is used to communicate the inlet cavity and the filtering cavity. A second through hole is formed in the second partition, and the second through hole is used to communicate the filtering cavity and the sewage cavity. The water inlet is communicated with the inlet cavity, the water outlet is communicated with the filtering cavity, the sewage outlet is communicated with the sewage cavity. The filter element is arranged along the axial direction of the housing in the filtering cavity, and two ends of the filter element are respectively abutted against the first partition and the second partition, and two ends of the filter element are respectively communicated with the first through hole and the second through hole.

[0015] Further, the blockage clearing unit includes a rotating shaft, a brush and a rotation driving member. The rotating shaft is arranged along the axial direction of the housing and penetrates through the inlet cavity, the filter element and the sewage cavity. One end of the rotating shaft is rotatably connected to the housing, and the other end of the rotating shaft is rotatably connected to the third partition. The brush is arranged in the filter element, a fixing part of the brush is fixedly connected to the rotating shaft, and a bristle part of the brush is abutted against the inner side wall of the filter element. The rotation driving member is fixedly arranged in the receiving cavity, and an output end of the rotation driving member is fixedly connected to the other end of the rotating shaft for driving the rotating shaft to rotate.

[0016] Further, the opening and closing unit includes an opening and closing plate and a driving assembly. The opening and closing plate is hermetically and slidably arranged in the sewage cavity. The driving assembly is connected to the opening and closing plate and is used to drive the opening and closing plate to move along the axial direction of the housing so that the opening and closing plate reaches a first position or a second position. When the opening and closing plate reaches the first position, the sewage outlet is separated from the second through hole. When the opening and closing plate reaches the second position, the sewage outlet is communicated with the second through hole.

[0017] Further, the driving assembly includes a plurality of connecting rods, a moving disk, and a telescopic driving member. Each of the connecting rods is arranged along the axial direction of the housing. One end of each connecting rod is located in the sewage chamber and is fixedly connected to the opening and closing plate. The other end of each connecting rod slidably penetrates through the third partition plate and extends into the receiving chamber. The moving disk is arranged in the receiving chamber and is fixedly connected to the other end of each connecting rod. The telescopic driving member is fixedly connected to the housing, and the output end of the telescopic driving member is fixedly connected to the moving disk for driving the moving disk to move along the axial direction of the housing.

[0018] Further, the monitoring unit includes a first pressure sensor, a second pressure sensor, and a controller. The first pressure sensor is arranged at the water inlet for collecting the pressure value at the water inlet. The second pressure sensor is arranged at the water outlet for collecting the pressure value at the water outlet. The input end of the controller is electrically connected to both the first pressure sensor and the second pressure sensor for obtaining and analyzing the pressure values collected by the first pressure sensor and the second pressure sensor. The output end of the controller is electrically connected to both the rotation driving member and the telescopic driving member for controlling the start and stop of the rotation driving member and the telescopic driving member.

[0019] On the other hand, the present utility model further provides a self-cleaning filtration system for a water turbine, including a plurality of the above-mentioned self-cleaning filtration devices for a water turbine, a water inlet pipeline, a water outlet pipeline, a sewage pool, a sewage discharge pipeline, and a driving pump. The water inlet pipeline includes a main water inlet pipe and a plurality of branch water inlet pipes. One end of the main water inlet pipe is communicated with the water diversion pipe, and one end of each branch water inlet pipe is communicated with the other end of the main water inlet pipe. The other end of each branch water inlet pipe is respectively communicated with the corresponding water inlet. The water outlet pipeline includes a main water outlet pipe and a plurality of branch water outlet pipes. One end of the main water outlet pipe is communicated with the inlet end of the water turbine, and one end of each branch water outlet pipe is communicated with the other end of the main water outlet pipe. The other end of each branch water outlet pipe is respectively communicated with the corresponding water outlet. The sewage discharge pipeline includes a main sewage discharge pipe and a plurality of branch sewage discharge pipes. One end of the main sewage discharge pipe is communicated with the sewage pool, and one end of each branch sewage discharge pipe is communicated with the other end of the main sewage discharge pipe. The other end of each branch sewage discharge pipe is respectively communicated with the corresponding sewage discharge port. The driving pump is communicated with the sewage pool for pumping out the sewage in the sewage pool.

[0020] Compared with the prior art, the beneficial effects of the present utility model include: during use, the water inlet is connected to the water inlet pipe, and the water outlet is connected to the inlet end of the water turbine. Water in the upstream reservoir enters the water inlet pipe and then enters the cavity along the water inlet. Sediment or gravel in the water is intercepted by the filter element. As more and more sediment or gravel is intercepted, the filter element will become blocked. The monitoring unit can collect and analyze the pressures at the water inlet and the water outlet. When the pressure at the water outlet is equal to the pressure at the water inlet, the sewage outlet is in a closed state. When the pressure at the water outlet is less than the pressure at the water inlet, the clogging removal unit is activated. The clogging removal unit clears the filter element, and the opening and closing unit is activated. The sewage outlet is in an open state, and the sewage is discharged along the sewage outlet. This filtering device can filter sediment or gravel in the water through the filter element to prevent sediment or gravel from entering the water turbine. It can monitor the working state of the filter element in real time through the monitoring unit. After the filter element is blocked, the self-cleaning function of the filter element can be realized through the clogging removal unit, and there is no need to manually clean the filter element regularly, which is very convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 is a perspective structural schematic diagram of a self-cleaning filtration system for a water turbine provided by the present utility model;

[0022] Figure 2 is a perspective structural schematic diagram of a self-cleaning filtration device for a water turbine provided by the present utility model;

[0023] Figure 3 is Figure 2 a cross-sectional view of a self-cleaning filtration device for a water turbine in

[0024] Figure 4 is Figure 3 a cross-sectional view of a self-cleaning filtration device for a water turbine in

[0025] In the figure: 100 - housing, 110 - outer shell, 111 - cavity, 1111 - water inlet cavity, 1112 - filtration cavity, 1113 - sewage discharge cavity, 1114 - receiving cavity, 112 - water inlet, 113 - water outlet, 114 - sewage discharge port, 120 - first partition, 121 - second through hole, 130 - second partition, 131 - second through hole, 140 - third partition, 200 - filter element, 300 - blockage cleaning unit, 310 - rotating shaft, 320 - brush, 330 - rotation driving member, 400 - opening and closing unit, 410 - opening and closing plate, 420 - driving assembly, 421 - connecting rod, 422 - moving disk, 423 - telescopic driving member, 500 - water inlet pipeline, 510 - main water inlet pipe, 520 - branch water inlet pipe, 600 - water outlet pipeline, 610 - main water outlet pipe, 620 - branch water outlet pipe, 700 - sewage pool, 800 - sewage discharge pipeline, 810 - main sewage discharge pipe, 820 - branch sewage discharge pipe. Detailed implementation manners

[0026] In order to make the purpose, technical solution and advantages of the present utility model clearer and more understandable, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present utility model and are not used to limit the present utility model.

[0027] The present utility model provides a self-cleaning filtration device for a water turbine, and its structure is as Figure 2 - Figure 4 shown, including a housing 100, a filter element 200, a blockage cleaning unit 300, an opening and closing unit 400 and a monitoring unit. The housing 100 includes an outer shell 110, the outer shell 110 has a cavity 111, and a water inlet 112, a water outlet 113 and a sewage discharge port 114 communicating with the cavity 111 are opened on the outer shell 110; the filter element 200 is arranged in the cavity 111, its inlet end is communicated with the water inlet 112 and the sewage discharge port 114, and its outlet end is communicated with the water outlet 113; the blockage cleaning unit 300 is used for cleaning the blockage of the filter element 200; the opening and closing unit 400 is used for opening or closing the sewage discharge port 114; the monitoring unit is electrically connected to both the blockage cleaning unit 300 and the opening and closing unit 400, and is used for collecting and analyzing the pressure values at the water inlet 112 and the water outlet 113.

[0028] In use, connect the water inlet 112 to the water inlet pipe, and connect the water outlet 113 to the inlet end of the water turbine. The water in the upstream reservoir enters the water inlet pipe and enters the cavity 111 along the water inlet 112. The sediment or gravel in the water is intercepted by the filter element 200. As more and more intercepted sediment or gravel accumulates, the filter element 200 will become blocked. The monitoring unit can collect and analyze the pressures at the water inlet 112 and the water outlet 113. When the pressure at the water outlet 113 is equal to the pressure at the water inlet 112, the sewage outlet 114 is in a closed state. When the pressure at the water outlet 113 is less than the pressure at the water inlet 112, the clogging removal unit 300 is activated. The clogging removal unit 300 clears the clogging of the filter element 200, and the opening and closing unit 400 is activated. The sewage outlet 114 is in an open state, and the sewage is discharged along the sewage outlet 114. This filtering device can filter the sediment or gravel in the water through the filter element 200 to prevent the sediment or gravel from entering the water turbine. The working state of the filter element 200 can be monitored in real time through the monitoring unit. After the filter element 200 is blocked, the self-cleaning function of the filter element 200 can be realized through the clogging removal unit 300, and there is no need to manually clean the filter element 200 regularly, which is very convenient.

[0029] As a preferred embodiment, please refer to Figure 2 and Figure 3 , the water inlet 112 is located at the top of the housing 110 to facilitate the water in the upstream to enter the cavity 111 along the water inlet 112 through the water inlet pipe. The water outlet 113 and the sewage outlet 114 are both located at the bottom of the housing 110 to facilitate drainage.

[0030] As a preferred embodiment, please refer to Figure 3 , the diameter of the water outlet 113 is larger than the diameter of the sewage outlet 114, so that the drainage capacity of the sewage outlet 114 is less than the drainage capacity of the water outlet 113. During the process of clearing the clogging of the filter element 200, the pressure at the water outlet 113 will gradually return to the initial state, and the monitoring unit monitors the self-cleaning degree of the filter element 200.

[0031] As a preferred embodiment, please refer to Figure 3 , the filter element 200 is of a tubular structure. The arc-shaped wall of the filter element 200 is composed of a filter net, and an inlet end is formed in the middle hole area of the filter element 200.

[0032] As a preferred embodiment, please refer to Figure 3 and Figure 4, the housing 110 is a tubular structure. The housing 100 further includes a first partition 120, a second partition 130, and a third partition 140. The first partition 120, the second partition 130, and the third partition 140 are all fixedly provided in the cavity 111 at intervals along the axial direction of the housing 110, so as to sequentially separate an inlet chamber 1111, a filtering chamber 1112, a sewage discharge chamber 1113, and a receiving chamber 1114 in the cavity 111. A first through hole 121 is formed in the first partition 120, and the first through hole 121 is used to communicate the inlet chamber 1111 and the filtering chamber 1112. A second through hole 131 is formed in the second partition 130, and the second through hole 131 is used to communicate the filtering chamber 1112 and the sewage discharge chamber 1113. The water inlet 112 is communicated with the inlet chamber 1111, the water outlet 113 is communicated with the filtering chamber 1112, and the sewage outlet 114 is communicated with the sewage discharge chamber 1113. The filter element 200 is arranged in the filtering chamber 1112 along the axial direction of the housing 110. Both ends of the filter element 200 are tightly abutted against the first partition 120 and the second partition 130 respectively. Both ends of the filter element 200 are communicated with the first through hole 121 and the second through hole 131 respectively. The filter element 200 can be positioned by the first partition 120 and the second partition 130, which is convenient for arranging the blockage clearing unit 300 and the opening and closing unit 400 in the sewage discharge chamber 1113 and the receiving chamber 1114.

[0033] As a preferred embodiment, please refer to Figure 3 and Figure 4 , the blockage clearing unit 300 includes a rotating shaft 310, a brush 320, and a rotation driving member 330. The rotating shaft 310 is arranged along the axial direction of the housing 110 and penetrates through the inlet chamber 1111, the filter element 200, and the sewage discharge chamber 1113. One end of the rotating shaft 310 is rotatably connected to the housing 110, and the other end of the rotating shaft 310 is rotatably connected to the third partition 140. The brush 320 is arranged in the filter element 200. The fixing part of the brush 320 is fixedly connected to the rotating shaft 310, and the bristles part of the brush 320 is tightly abutted against the inner side wall of the filter element 200. The rotation driving member 330 is fixedly arranged in the receiving chamber 1114, and the output end of the rotation driving member 330 is fixedly connected to the other end of the rotating shaft 310 for driving the rotating shaft 310 to rotate. When the filter element 200 is blocked, the rotation driving member 330 is started to drive the rotating shaft 310 to rotate and drive the brush 320 to rotate. During the rotation of the brush 320, the surface of the filter element 200 will be brushed.

[0034] As a preferred embodiment, please refer to Figure 3, the opening and closing unit 400 includes an opening and closing plate 410 and a driving assembly 420. The opening and closing plate 410 is hermetically and slidably arranged in the sewage chamber 1113. The driving assembly 420 is connected to the opening and closing plate 410 and is used to drive the opening and closing plate 410 to move axially along the housing 110, so that the opening and closing plate 410 reaches the first position or the second position. When the opening and closing plate 410 reaches the first position, the sewage outlet 114 is separated from the second through hole 131. When the opening and closing plate 410 reaches the second position, the sewage outlet 114 is communicated with the second through hole 131. The water in the upstream reservoir enters the water diversion pipe and enters the water inlet chamber 1111 along the water inlet 112, then enters the middle hole area of the filter element 200 along the first through hole 121. The filtered water enters the filter chamber 1112 and is discharged into the water turbine along the water outlet 113. When the filter element 200 is blocked, the rotation driving member 330 is started to drive the rotating shaft 310 to rotate and drive the brush 320 to rotate. During the rotation of the brush 320, the surface of the filter element 200 will be scrubbed. The driving assembly 420 is started to drive the opening and closing plate 410 to reach the second position. When the opening and closing plate 410 reaches the second position, the sewage outlet 114 is communicated with the second through hole 131, and the sewage enters the sewage chamber 1113 along the second through hole 131 and is discharged along the sewage outlet 114.

[0035] As a preferred embodiment, please refer to Figure 4 , the driving assembly 420 includes a plurality of connecting rods 421, a moving disk 422 and a telescopic driving member 423. Each of the connecting rods 421 is arranged axially along the housing 110. One end of each connecting rod 421 is located in the sewage chamber 1113 and is fixedly connected to the opening and closing plate 410. The other end of each connecting rod 421 slidably penetrates through the third partition plate 140 and extends into the receiving chamber 1114. The moving disk 422 is arranged in the receiving chamber 1114 and is fixedly connected to the other end of each connecting rod 421. The telescopic driving member 423 is fixedly connected to the housing 110. The output end of the telescopic driving member 423 is fixedly connected to the moving disk 422 and is used to drive the moving disk 422 to move axially along the housing 110. When the telescopic driving member 423 is started, it drives the moving disk 422 to move axially along the housing 110 and drives the opening and closing plate 410 to move axially along the housing 110 through each connecting rod 421, so that the opening and closing plate 410 reaches the first position or the second position.

[0036] As a preferred embodiment, the monitoring unit includes a first pressure sensor, a second pressure sensor and a controller. The first pressure sensor is disposed at the water inlet 112 for collecting the pressure value at the water inlet 112. The second pressure sensor is disposed at the water outlet 113 for collecting the pressure value at the water outlet 113. The input end of the controller is electrically connected to both the first pressure sensor and the second pressure sensor for obtaining and analyzing the pressure values collected by the first pressure sensor and the second pressure sensor. The output end of the controller is electrically connected to both the rotation driving member 330 and the telescopic driving member 423 for controlling the start and stop of the rotation driving member 330 and the telescopic driving member 423. When the pressure at the water outlet 113 is equal to the pressure at the water inlet 112, the sewage outlet 114 is in a closed state. When the pressure at the water outlet 113 is less than the pressure at the water inlet 112, the rotation driving member 330 is started to drive the brush 320 to brush the filter member 200, and the telescopic driving member 423 is started to drive the opening and closing plate 410 to reach the second position, and the sewage outlet 114 is communicated with the second through hole 131, and the sewage is discharged along the sewage outlet 114.

[0037] Please refer to Figure 1 , based on the above self-cleaning filtration device for a water turbine, the present invention further provides a self-cleaning filtration system for a water turbine, including a plurality of the above self-cleaning filtration devices for a water turbine, a water inlet pipeline 500, a water outlet pipeline 600, a sewage pool 700, a sewage discharge pipeline 800 and a driving pump. The water inlet pipeline 500 includes a main water inlet pipe 510 and a plurality of branch water inlet pipes 520. One end of the main water inlet pipe 510 is communicated with the water diversion pipe, and one end of each branch water inlet pipe 520 is communicated with the other end of the main water inlet pipe 510. The other ends of the branch water inlet pipes 520 are respectively communicated with the corresponding water inlets 112. The water outlet pipeline 600 includes a main water outlet pipe 610 and a plurality of branch water outlet pipes 620. One end of the main water outlet pipe 610 is communicated with the inlet end of the water turbine, and one end of each branch water outlet pipe 620 is communicated with the other end of the main water outlet pipe 610. The other ends of the branch water outlet pipes 620 are respectively communicated with the corresponding water outlets 113. The sewage discharge pipeline 800 includes a main sewage discharge pipe 810 and a plurality of branch sewage discharge pipes 820. One end of the main sewage discharge pipe 810 is communicated with the sewage pool, and one end of each branch sewage discharge pipe 820 is communicated with the other end of the main sewage discharge pipe 810. The other ends of the branch sewage discharge pipes 820 are respectively communicated with the corresponding sewage outlets 114. The driving pump is communicated with the sewage pool for pumping out the sewage in the sewage pool, which can improve the filtration effect of water and ensure the stability of the total water inlet volume of the water turbine.

[0038] In order to better understand the present invention, the following Figure 1 - Figure 4 The working principle of the technical solution of the utility model is described in detail:

[0039] When in use, one end of the main water inlet pipe 510 is connected to the water diversion pipe, one end of the main water outlet pipe 610 is connected to the inlet end of the turbine, and one end of the main sewage pipe 810 is connected to the pool. Water from the upstream reservoir enters the water diversion pipe and enters each water inlet cavity 1111 along the water inlet pipeline 500. The mud or gravel in the water is intercepted by the filter element 200. The filtered water enters the filter cavity 1112 and enters the water outlet pipeline 600 along the water outlet 113, and then enters In the turbine, as more and more mud or gravel is intercepted, the filter element 200 will be blocked, and the pressure value at the water inlet 112 can be collected through the first pressure sensor, and the pressure value at the water outlet 113 can be collected through the second pressure sensor. When the pressure at the water outlet 113 is equal to the pressure at the water inlet 112, the sewage outlet 114 is in a closed state. When the pressure at the water outlet 113 is less than the pressure at the water inlet 112, the rotating drive element 330 is started. The rotating shaft 310 is driven to rotate, and the brush 320 is driven to rotate. During the rotation of the brush 320, the surface of the filter element 200 is scrubbed. The telescopic driving member 423 is started to drive the movable plate 422 to move along the axial direction of the housing 110, and the opening and closing plate 410 is driven to move along the axial direction of the housing 110 through each of the connecting rods 421, so that the opening and closing plate 410 reaches the second position, the sewage outlet 114 is connected to the second through hole 131, and the sewage is discharged along the second through hole 131. The sewage is discharged from the sewage outlet 114 and enters the water pool along the sewage pipe 800. The filtering device can filter the mud or gravel in the water through the filter element 200 to prevent the mud or gravel from entering the turbine. The working state of the filter element 200 can be monitored in real time by the monitoring unit. When the filter element 200 is blocked, the self-cleaning function of the filter element 200 can be realized by the clearing unit 300. There is no need to manually clear the filter element 200 regularly, which is very convenient.

[0040] The utility model provides a self-cleaning filter device and system for a water turbine, which has the following beneficial effects:

[0041] (1)The pressure value at the water inlet 112 can be collected through the first pressure sensor, and the pressure value at the water outlet 113 can be collected through the second pressure sensor. When the pressure at the water outlet 113 is equal to the pressure at the water inlet 112, the sewage outlet 114 is in a closed state. When the pressure at the water outlet 113 is less than the pressure at the water inlet 112, the rotation driving member 330 is started, and the telescopic driving member 423 is started, enabling the self-start of the rotation driving member 330 and the telescopic driving member 423.

[0042] (2)This filtration system can improve the filtration effect of water and ensure the stability of the total water intake of the water turbine.

[0043] (3)This filtration device can filter sediment or gravel in water through the filter element 200 to prevent sediment or gravel from entering the water turbine. The working state of the filter element 200 can be monitored in real time through the monitoring unit. After the filter element 200 is blocked, the self-cleaning function of the filter element 200 can be achieved through the clogging removal unit 300, eliminating the need for manual regular clogging removal of the filter element 200, which is very convenient.

[0044] The specific implementation manners of the present utility model described above do not constitute a limitation on the protection scope of the present utility model. Any other corresponding changes and deformations made according to the technical concept of the present utility model shall be included within the protection scope of the claims of the present utility model.

Claims

1. A self-cleaning filtration device for a water turbine, characterized in that, Comprising: A housing, which includes an outer shell, a first partition, a second partition and a third partition. The outer shell is a tubular structure and has a cavity. An inlet, an outlet and a sewage discharge port communicating with the cavity are provided on the outer shell. The first partition, the second partition and the third partition are all fixedly arranged in the cavity at intervals along the axial direction of the outer shell, so as to sequentially separate an inlet cavity, a filtration cavity, a sewage discharge cavity and a receiving cavity in the cavity. A first through hole is provided on the first partition, and the first through hole is used to communicate the inlet cavity and the filtration cavity. A second through hole is provided on the second partition, and the second through hole is used to communicate the filtration cavity and the sewage discharge cavity. The inlet is communicated with the inlet cavity, the outlet is communicated with the filtration cavity, and the sewage discharge port is communicated with the sewage discharge cavity; A filter element, arranged in the cavity, whose inlet end is communicated with the inlet and the sewage discharge port, and whose outlet end is communicated with the outlet. The filter element is a tubular structure and is arranged in the filtration cavity along the axial direction of the outer shell. Both ends of the filter element are tightly abutted against the first partition and the second partition respectively, and both ends of the filter element are communicated with the first through hole and the second through hole respectively; A clogging clearing unit, used for clearing the clogging of the filter element; An opening and closing unit, used for opening or closing the sewage discharge port; A monitoring unit, electrically connected to both the clogging clearing unit and the opening and closing unit, for collecting and analyzing the pressure values at the inlet and the outlet.

2. The self-cleaning filtration device for a water turbine according to claim 1, characterized in that, The inlet is located at the top of the outer shell, and both the outlet and the sewage discharge port are located at the bottom of the outer shell.

3. The self-cleaning filtration device for a water turbine according to claim 1, wherein, The caliber of the outlet is larger than that of the sewage discharge port.

4. The self-cleaning filtration device for a water turbine according to claim 1, characterized in that, The clogging clearing unit includes a rotating shaft, a brush and a rotation driving member. The rotating shaft is arranged along the axial direction of the outer shell and penetrates through the inlet cavity, the filter element and the sewage discharge cavity. One end of the rotating shaft is rotatably connected to the outer shell, and the other end of the rotating shaft is rotatably connected to the third partition. The brush is arranged inside the filter element. The fixing part of the brush is fixedly connected to the rotating shaft, and the bristles part of the brush is tightly abutted against the inner side wall of the filter element. The rotation driving member is fixedly arranged in the receiving cavity, and the output end of the rotation driving member is fixedly connected to the other end of the rotating shaft for driving the rotating shaft to rotate.

5. The self-cleaning filtration device for a water turbine according to claim 4, characterized in that, The opening and closing unit includes an opening and closing plate and a driving assembly. The opening and closing plate is hermetically and slidably arranged in the sewage discharge cavity. The driving assembly is connected to the opening and closing plate for driving the opening and closing plate to move along the axial direction of the outer shell, so that the opening and closing plate reaches a first position or a second position. When the opening and closing plate reaches the first position, the sewage discharge port is separated from the second through hole. When the opening and closing plate reaches the second position, the sewage discharge port is communicated with the second through hole.

6. The self-cleaning filtration device for a water turbine according to claim 5, characterized in that, The driving assembly includes a plurality of connecting rods, a moving disk and a telescopic driving member. Each of the connecting rods is arranged along the axial direction of the housing. One end of each connecting rod is located in the sewage chamber and is fixedly connected to the opening and closing plate. The other end of each connecting rod slidably penetrates through the third partition plate and extends into the receiving chamber. The moving disk is arranged in the receiving chamber and is fixedly connected to the other end of each connecting rod. The telescopic driving member is fixedly connected to the housing, and the output end of the telescopic driving member is fixedly connected to the moving disk for driving the moving disk to move along the axial direction of the housing.

7. The self-cleaning filtration device for a water turbine according to claim 6, characterized in that, The monitoring unit includes a first pressure sensor, a second pressure sensor and a controller. The first pressure sensor is arranged at the water inlet for collecting the pressure value at the water inlet. The second pressure sensor is arranged at the water outlet for collecting the pressure value at the water outlet. The input end of the controller is electrically connected to both the first pressure sensor and the second pressure sensor for obtaining and analyzing the pressure values collected by the first pressure sensor and the second pressure sensor. The output end of the controller is electrically connected to both the rotation driving member and the telescopic driving member for controlling the start and stop of the rotation driving member and the telescopic driving member.

8. A self-cleaning filtration system for a water turbine, characterized in that, It includes a plurality of self-cleaning filtering devices for a water turbine as described in any one of claims 1-7, a water inlet pipeline, a water outlet pipeline, a sewage pool, a sewage discharge pipeline and a driving pump. The water inlet pipeline includes a main water inlet pipe and a plurality of branch water inlet pipes. One end of the main water inlet pipe is communicated with the water diversion pipe. One end of each branch water inlet pipe is communicated with the other end of the main water inlet pipe. The other end of each branch water inlet pipe is respectively communicated with the corresponding water inlet. The water outlet pipeline includes a main water outlet pipe and a plurality of branch water outlet pipes. One end of the main water outlet pipe is communicated with the inlet end of the water turbine. One end of each branch water outlet pipe is communicated with the other end of the main water outlet pipe. The other end of each branch water outlet pipe is respectively communicated with the corresponding water outlet. The sewage discharge pipeline includes a main sewage discharge pipe and a plurality of branch sewage discharge pipes. One end of the main sewage discharge pipe is communicated with the sewage pool. One end of each branch sewage discharge pipe is communicated with the other end of the main sewage discharge pipe. The other end of each branch sewage discharge pipe is respectively communicated with the corresponding sewage outlet. The driving pump is communicated with the sewage pool for pumping out the sewage in the sewage pool.

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