CN220589254U

CN220589254U - Filtering device for technical water supply system of small hydropower station

Info

Publication number: CN220589254U
Application number: CN202322159316.2U
Authority: CN
Inventors: 杨其勇; 徐世光; 王剑锋; 王正红; 刘建文; 张家磊; 左金标; 杨云锐; 普晓祥
Original assignee: Yunnan Xinjing Electric Power Co ltd
Current assignee: Yunnan Xinjing Electric Power Co ltd
Priority date: 2023-08-11
Filing date: 2023-08-11
Publication date: 2024-03-15
Anticipated expiration: 2033-08-11

Abstract

The utility model relates to the technical field of hydropower station water supply systems, in particular to a filtering device of a small hydropower station technical water supply system, which comprises an overflow tank, wherein the outer side of the top of the overflow tank is connected with a water supply tank through a siphon pipeline, the top of the water supply tank is provided with a steel plate filter screen assembly, the steel plate filter screen assembly comprises a filter screen with a rectangular structure, the outer side top of the filter screen is provided with a baffle, the surface of the filter screen is provided with a plurality of small holes, and the outer side of an opening of the top of the water supply tank is provided with a retaining wall. In the small hydropower station technical water supply system filtering device, water supply in the hydropower station technical water supply system is filtered by combining siphoning, a steel plate filter screen and pool precipitation filtration, so that the water quality difference and blockage phenomena of the generator set technical water supply system are effectively solved, the device can stably operate under various complex water quality conditions, the safety and stability of the generator set technical water supply system are improved, and the safety production risk of a power plant is reduced.

Description

Filtering device for technical water supply system of small hydropower station

Technical Field

The utility model relates to the technical field of hydropower station water supply systems, in particular to a filtering device of a small hydropower station technical water supply system.

Background

The generator set bearing technology water supply system adopts the pressure steel pipe overflow pool to take water, the pressure steel pipe overflow pool has poor water quality and many impurities, contains a large amount of wood, sediment, fallen leaves and other impurities, and when the generator set technology water supply system operates, a large amount of wood, sediment, fallen leaves and other impurities enter the generator set technology water supply system, so that cooling water of a generator bearing cooling system is blocked or interrupted, the performance of the generator cooling system is reduced or lost, the temperature of a generator set bearing oil system is increased, the generator bearing tiles are extremely easy to burn, and huge economic loss is brought to a power plant. The bearing bush of the generator is potentially harmful to safe, stable and reliable operation, and the safe production of the generator is threatened.

Disclosure of Invention

The utility model aims to provide a filtering device for a small hydropower station technical water supply system, which is used for solving the problems that the pressure steel pipe overflow pool provided in the background art is poor in water quality and contains a large amount of sundries such as wood, sediment, fallen leaves and the like, and when the generator technical water supply system operates, the sundries such as the wood, the sediment, the fallen leaves and the like enter the generator set technical water supply system.

In order to achieve the above purpose, the utility model provides a filtering device for a small hydropower station technical water supply system, which comprises an overflow tank, wherein the outer side of the top of the overflow tank is connected with a water supply tank through a siphon pipeline, the top of the water supply tank is provided with a steel plate filter screen assembly, the steel plate filter screen assembly comprises a filter screen with a rectangular structure, the outer side top of the filter screen is provided with a baffle, the surface of the filter screen is provided with a plurality of small holes, the outer side of the top opening of the water supply tank is provided with a retaining wall, the outer wall of the retaining wall is provided with a water supply pipe close to the upper part, the height of the overflow tank is larger than that of the water supply tank, the height of the siphon pipeline close to the end of the overflow tank is higher than that of the water supply tank, and the end close to the water supply tank is positioned above the steel plate filter screen assembly.

Preferably, the height of the baffle is 4mm, the small holes of the filter screen are of a circular structure, the diameter of the small holes is 4mm, the small holes are arranged in a matrix, and the distance between the circle centers of the small holes is 9mm.

Preferably, the retaining walls are 2000mm long and wide and 600mm high.

Preferably, a bracket is arranged at the top opening of the water supply tank, and the top of the bracket supports the steel plate filter screen assembly.

Preferably, the number of the filter screens is two, the length and the width of each filter screen are 900mm, and a partition plate is arranged between the two filter screens.

Preferably, the inside of overflow pond is equipped with interior pond, bottom one side of overflow pond is connected with the inlet tube, the outer wall in the pond is run through to the one end of inlet tube, the inside top in overflow pond is equipped with the outlet pipe, the top and the end of siphon pipeline of outlet pipe are connected.

Preferably, the bottom end of the water outlet pipe is vertically arranged on the inner wall of the overflow tank through a fixing frame.

Compared with the prior art, the utility model has the beneficial effects that:

in the small hydropower station technical water supply system filtering device, water supply in the hydropower station technical water supply system is filtered by combining siphoning, a steel plate filter screen and pool precipitation filtration, so that the water quality difference and blockage phenomena of the generator set technical water supply system are effectively solved, the device can stably operate under various complex water quality conditions, the safety and stability of the generator set technical water supply system are improved, and the safety production risk of a power plant is reduced. The difficult problem of the technical water supply system of the generator set in complex water quality condition is truly reduced to the greatest extent, and the economic operation of the generator set is greatly improved.

Drawings

FIG. 1 is a schematic diagram of the overall structure of the present utility model;

FIG. 2 is a schematic view showing the construction of a water supply tank according to the present utility model;

FIG. 3 is a schematic view of a steel screen assembly according to the present utility model;

FIG. 4 is a schematic diagram showing the internal structure of the overflow tank in the present utility model.

The meaning of each reference sign in the figure is:

1. an overflow pool; 11. an inner pool; 12. a water inlet pipe; 13. a water outlet pipe; 131. a fixing frame; 2. a siphon line; 3. a water supply tank; 31. a retaining wall; 32. a water supply pipe; 33. a bracket; 4. a steel plate filter screen assembly; 41. a baffle; 42. a filter screen; 43. a partition board.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

The utility model provides a filtering device of a water supply system of a small hydropower station technology, which is shown in fig. 1-4 and comprises an overflow tank 1, wherein the overflow tank 1 is used for carrying out preliminary overflow filtration after water enters, the outer side of the top of the overflow tank 1 is connected with a water supply tank 3 through a siphon pipeline 2 for carrying out siphon filtration on the water, the top of the water supply tank 3 is provided with a steel plate filter screen assembly 4 used for further filtering the water through a filter screen 42, the steel plate filter screen assembly 4 comprises a filter screen 42 with a rectangular structure, the outer side top of the filter screen 42 is provided with a baffle 41 used for blocking filtered impurities so as to enable the filtered impurities to be collected, the surface of the filter screen 42 is provided with a plurality of small holes for facilitating the water to pass through, the outer side of an opening of the top of the water supply tank 3 is provided with a retaining wall 31, the outer wall of the retaining wall 31 is provided with a water supply pipe 32 near the upper part, the height of the overflow tank 1 is larger than the height of the water supply tank 3, the end of the siphon pipeline 2 near the overflow tank 1 is higher than the end height near the water supply tank 3, and the end near the water supply tank 3 is located above the steel plate filter screen assembly 4, so that siphon pipeline can ensure that water can carry out siphon motion.

In this embodiment, the height of the baffle 41 is 4mm, the small holes of the filter screen 42 are of a circular structure, the diameter is 4mm, the small holes are arranged in a matrix, the center distance between the small holes is 9mm, the large-particle impurities are prevented from entering the technical water supply system of the generator set.

Specifically, the retaining walls 31 are 2000mm long and wide and 600mm high, and can block water.

Further, the top opening of the water supply tank 3 is provided with a support 33, the top of the support 33 supports the steel plate filter screen assembly 4, the steel plate filter screen assembly 4 is convenient to place and detach, and certain impurities are convenient to collect and then detach for cleaning.

Further, the number of the filter screens 42 is two, the length and width of each filter screen 42 are 900mm, a partition plate 43 is arranged between the two filter screens 42, and the two filter screens 42 are assembled together, so that the filtering range can be enlarged.

Further, the inside of overflow pond 1 is equipped with interior pond 11, bottom one side of overflow pond 1 is connected with inlet tube 12, the outer wall of pond 11 is run through to the one end of inlet tube 12, the inside top of overflow pond 1 is equipped with outlet pipe 13, the top and the end of siphon pipeline 2 of outlet pipe 13 are connected, after the water got into interior pond 11, block impurity through interior pond 11, after the water level risen, water overflows from the lateral wall of interior pond 11, get into between the outer wall of overflow pond 1 inner wall and interior pond 11, can block some impurity, then be connected through outlet pipe 13 and the end of siphon pipeline 2 and carry out siphon filtration, during the siphon, impurity can not rise along siphon pipeline 2 because of the action of gravity, consequently, can play fine filter effect.

Further, the bottom end of the water outlet pipe 13 is vertically installed on the inner wall of the overflow tank 1 through the fixing bracket 131, so that the vertical stability of the water outlet pipe 13 is ensured.

When the filtering device for the small hydropower station technical water supply system is used, the device is assembled firstly, then water is introduced into the inner tank 11 of the overflow tank 1 from the water inlet pipe 12, then part of larger impurities are blocked by the inner tank 11, after the water level rises, the water overflows from the side wall of the inner tank 11, enters between the inner wall of the overflow tank 1 and the outer wall of the inner tank 11, can block some impurities, then is connected with the end of the siphon pipeline 2 through the water outlet pipe 13 for siphon filtering, and during siphon, the impurities can not rise along the siphon pipeline 2 due to the action of gravity, so that part of impurities can be filtered further, then water enters the steel plate filter assembly 4, the water enters the water supply tank 3 through the filter screen 42, the impurities are blocked and collected in the steel plate filter assembly 4, the steel plate filter assembly 4 is cleaned regularly, the water is deposited in the water supply tank 3 for a period of time, and when the water level rises to the position of the retaining wall 31, the deposited and filtered water is discharged into the hydropower station technical water supply system through the water supply pipe 32.

The foregoing has shown and described the basic principles, principal features and advantages of the utility model. It will be understood by those skilled in the art that the present utility model is not limited to the above-described embodiments, and that the above-described embodiments and descriptions are only preferred embodiments of the present utility model, and are not intended to limit the utility model, and that various changes and modifications may be made therein without departing from the spirit and scope of the utility model as claimed. The scope of the utility model is defined by the appended claims and equivalents thereof.

Claims

1. The utility model provides a little hydropower station technical water supply system filter equipment, includes overflow pond (1), its characterized in that: the utility model discloses a water supply tank, including overflow pond (1), siphon pipeline (2) are connected with water supply tank (3) in the top outside of overflow pond (1), the top of water supply tank (3) is provided with steel sheet filter screen subassembly (4), steel sheet filter screen subassembly (4) are including filter screen (42) of rectangle structure, the outside top of filter screen (42) is equipped with baffle (41), a plurality of apertures have been seted up on the surface of filter screen (42), the top opening part outside of water supply tank (3) is equipped with barricade (31), the outer wall of barricade (31) is close to upper portion and is equipped with delivery pipe (32), the height of overflow pond (1) is greater than the height of water supply tank (3), the end height that siphon pipeline (2) is close to overflow pond (1) is higher than the end height that is close to water supply tank (3), the end that is close to water supply tank (3) is located the top of steel sheet filter screen subassembly (4).

2. The small hydropower station technical water supply system filtering device according to claim 1, wherein: the height of the baffle plate (41) is 4mm, the small holes of the filter screen (42) are of a circular structure, the diameter of the small holes is 4mm, the small holes are arranged in a matrix, and the distance between the circle centers of the small holes is 9mm.

3. The small hydropower station technical water supply system filtering device according to claim 1, wherein: the retaining walls (31) are 2000mm long and wide and 600mm high.

4. The small hydropower station technical water supply system filtering device according to claim 1, wherein: the top opening of the water supply tank (3) is provided with a bracket (33), and the top of the bracket (33) supports the steel plate filter screen assembly (4).

5. The small hydropower station technical water supply system filtering device according to claim 1, wherein: the number of the filter screens (42) is two, the length and the width of each filter screen (42) are 900mm, and a partition plate (43) is arranged between the two filter screens (42).

6. The small hydropower station technical water supply system filtering device according to claim 1, wherein: the inside of overflow pond (1) is equipped with interior pond (11), bottom one side of overflow pond (1) is connected with inlet tube (12), the outer wall in pond (11) is run through to the one end of inlet tube (12), the inside top in overflow pond (1) is equipped with outlet pipe (13), the top and the end of siphon pipeline (2) of outlet pipe (13) are connected.

7. The small hydropower station technical water supply system filtering device according to claim 6, wherein: the bottom end of the water outlet pipe (13) is vertically arranged on the inner wall of the overflow tank (1) through a fixing frame (131).