Hydropower station cooling water recycling equipment

Abstract

The utility model provides cooling water recycling equipment for a hydropower station, which relates to the technical field of hydropower station equipment and comprises a pool body, one end of the pool body is communicated and fixedly provided with a water inlet pipe, a water pump is arranged in the pool body, a water inlet pipe of the water pump is communicated with an inner cavity of the pool body, and a water pump drainage pipe extends out of the pool body. A water storage tank is placed in the pool body, a water leakage tank is formed in the bottom of the water storage tank and penetrates through the water storage tank, the section of the water leakage tank is arranged to be strip-shaped, a lifting mechanism is installed on the pool body, the lifting mechanism is connected with the water storage tank and used for driving the water storage tank to move up and down, and a plurality of heat dissipation fins distributed at equal intervals are fixedly installed on the two sides of the pool body. The cooling fins extend into the pool body, cleaning mechanisms are arranged on the two sides of the pool body and used for cleaning the surfaces of the cooling fins, each cleaning mechanism comprises two side plates fixedly installed on the pool body, and a movable base is arranged between the two side plates.

Description

Technical Field

[0001] The utility model relates to the technical field of hydropower station equipment, in particular to cooling water circulation equipment for a hydropower station. Background Art

[0002] During the operation of the hydroelectric generator set of a hydropower station, not only the upper guide bearing, thrust bearing and lower guide bearing of the generator and the guide bearing of the turbine will generate a lot of heat. When the temperature rises, a lot of heat will also be generated between the generator rotor and the stator, and the heat generated is greater than that generated at the bearings. The temperature increase at each bearing of the hydroelectric generator set will greatly reduce the performance of the bearing lubricating oil, deteriorate the working environment of the bearing, and affect the normal operation of the hydroelectric generator set. In order to make the bearing work in a normal environment, the bearing needs to be cooled to remove the heat generated during operation in time.

[0003] For example, the automatic circulating cooling device for the hydropower station unit with the publication number CN1865692A includes a heat pipe evaporator for cooling the heating components of the turbine generator to remove heat and a heat pipe condenser placed in water to cool the steam of the heat pipe working medium. The heat pipe evaporator and the heat pipe condenser contain a closed vacuum chamber, and the two ends of the working medium steam riser and the working medium condensate descender are respectively connected to the heat pipe evaporator and the heat pipe condenser to form a closed vacuum loop for the heat pipe working medium circulation. Compared with the circulating water cooling device of the hydropower station in the prior art, the present invention saves the circulating water pump and the circulating water pool, reduces the equipment investment and operation cost, improves the reliability of the safe operation of the equipment, and completely solves the problem of water quality treatment of cooling water for the hydropower station unit.

[0004] However, during the use of existing hydropower station cooling water recycling equipment, dust is easily contaminated and accumulated on the heat dissipation structure. The accumulation of dust on the heat dissipation structure will form a heat insulation layer, which increases the thermal resistance between the heat dissipation equipment and the air, making it difficult for heat to be effectively dissipated into the air. Due to the reduction in heat dissipation efficiency, the temperature inside the equipment will gradually increase. For key equipment in the hydropower station, such as generator sets, the high temperature environment will have an adverse effect on their performance and life. For this reason, we propose a hydropower station cooling water recycling equipment. Utility Model Content

[0005] In view of the deficiencies of the prior art, the utility model provides a cooling water recycling device for a hydropower station, which solves the problems raised by the above-mentioned background technology.

[0006] To achieve the above objectives, the utility model is implemented through the following technical solutions: a cooling water circulation device for a hydropower station, comprising a tank body, one end of which is connected to and fixedly installed with a water inlet pipe, a water pump is installed in the tank body, the water inlet pipe of the water pump is connected to the tank body cavity, and the water pump discharge pipe extends to the outside of the tank body.

[0007] A water tank is placed in the pool body, and a leakage groove is opened at the bottom of the water tank, the leakage groove runs through the water tank and the cross-section of the leakage groove is set to be strip-shaped, a lifting mechanism is installed on the pool body, the lifting mechanism is connected to the water tank, the lifting mechanism is used to drive the water tank to move up and down, a plurality of equally distributed heat dissipation fins are fixedly installed on both sides of the pool body, the heat dissipation fins extend into the interior of the pool body, a cleaning mechanism is set on both sides of the pool body, the cleaning mechanism is used to clean the surface of the heat dissipation fins, the cleaning mechanism includes two side panels fixedly mounted on the pool body, a movable seat is provided between the two side panels, a plurality of cotton blocks are fixedly connected to the movable seat, the cotton blocks are respectively located between adjacent heat dissipation fins, the cotton blocks are in contact with the heat dissipation fins, a moving component is provided between the two side panels, the moving component is connected to the movable seat and is used to drive the cotton blocks to move.

[0008] As a further technical solution of the utility model, the moving assembly includes two guide rods arranged at intervals, a screw rod and a first motor. The guide rod passes through the movable seat and the end is fixedly connected to the side plate. The screw rod passes through the movable seat and is threadedly connected to the movable seat. The end of the screw rod can be rotatably mounted on the side plate. The first motor is fixedly mounted on the side plate and the output shaft is fixedly connected to the screw rod.

[0009] As a further technical solution of the utility model, the lifting mechanism includes two groups of symmetrically distributed lifting components, the lifting components include a bracket, the bracket is fixedly connected to one side of the pool body, a rotating shaft is rotatably installed on the bracket, two interval-arranged winding wheels are fixedly installed on the rotating shaft, a rope body is fixedly connected inside the winding wheel, and the other end of the rope body is fixedly connected to the water tank.

[0010] As a further technical solution of the utility model, two guide wheels arranged at intervals are rotatably mounted on the pool body, and the rope body passes through the guide wheels.

[0011] As a further technical solution of the utility model, a second motor is fixedly mounted on the bracket, and the output shaft of the second motor is fixedly connected to the rotating shaft.

[0012] As a further technical solution of the utility model, a temperature detector is installed on the pool body.

[0013] The utility model provides a cooling water recycling device for a hydropower station, which has the following beneficial effects compared with the prior art:

[0014] 1. This design is a cooling water recycling equipment for a hydropower station. The water inlet pipe is connected to the water outlet of the turbine. Hot water enters the pool through the water inlet pipe. The heat inside the pool is dissipated by the heat dissipation fins, thereby performing secondary cooling on the turbine cooling water, improving the utilization rate of the cooling water and ensuring the normal operation of the generator-related components at high temperatures. By arranging a heat pipe in the pool, the heat pipe absorbs the waste heat and recovers the waste heat for building heating or power generation.

[0015] 2. This design of a hydropower station cooling water recycling equipment can clean the dust on the surface of the cooling fins during the movement of the cotton block, reducing the thermal resistance of the cooling fins, and the heat can be more smoothly dissipated into the air through the cooling fins, thereby improving the heat dissipation efficiency. Dust may contain corrosive substances, and long-term attachment to the cooling fins will accelerate the corrosion of metal parts. Regular cleaning can reduce this corrosion and extend the service life of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural schematic diagram of a cooling water recycling equipment for a hydropower station;

[0017] Figure 2 A top view of a cooling water recycling device for a hydropower station;

[0018] Figure 3 It is a side view of a cooling water recycling equipment for a hydropower station;

[0019] Figure 4 It is a cross-sectional view of a cooling water recycling device for a hydropower station.

[0020] In the figure: pool body 1, water inlet pipe 2, water pump 3, water storage tank 4, leakage tank 5, heat dissipation fins 6, side plate 7, movable seat 8, cotton block 9, guide rod 10, screw rod 11, first motor 12, bracket 13, rotating shaft 14, winding wheel 15, rope body 16, guide wheel 17, second motor 18. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0022] See also Figure 1-4 The utility model provides a technical solution for cooling water recycling equipment of a hydropower station:

[0023] A cooling water recycling device for a hydropower station comprises a tank body 1, one end of which is connected to and fixedly installed with a water inlet pipe 2, a water pump 3 is installed in the tank body 1, the water inlet pipe of the water pump 3 is connected to the inner cavity of the tank body 1, and the discharge pipe of the water pump 3 extends to the outside of the tank body 1. A water storage tank 4 is placed in the pool body 1, and a leakage groove 5 is opened at the bottom of the water storage tank 4. The leakage groove 5 runs through the water storage tank 4 and the cross-section of the leakage groove 5 is set to a strip shape. A lifting mechanism is installed on the pool body 1, and the lifting mechanism is connected to the water storage tank 4. The lifting mechanism is used to drive the water storage tank 4 to move up and down. A plurality of equidistantly distributed heat dissipating fins 6 are fixedly installed on both sides of the pool body 1, and the heat dissipating fins 6 extend to the inside of the pool body 1. A cleaning mechanism is set on both sides of the pool body 1, and the cleaning mechanism is used to clean the surface of the heat dissipating fins 6. The cleaning mechanism includes two side panels 7 fixedly mounted on the pool body 1, and a movable seat 8 is provided between the two side panels 7. A plurality of cotton blocks 9 are fixedly connected to the movable seat 8. The cotton blocks 9 are respectively located between adjacent heat dissipating fins 6, and the cotton blocks 9 are in contact with the heat dissipating fins 6. A moving component is set between the two side panels 7, and the moving component is connected to the movable seat 8 and is used to drive the cotton blocks 9 to move. The water inlet pipe 2 is connected to the water outlet of the turbine, and hot water enters the pool body 1 through the water inlet pipe 2. The heat inside the pool body 1 is dissipated through the heat dissipation fins 6, thereby performing secondary cooling on the turbine cooling water, thereby improving the utilization rate of the cooling water and ensuring that the relevant components of the generator operate normally at high temperatures. By arranging a heat pipe in the pool body 1, the heat pipe absorbs the waste heat and recovers the waste heat for building heating or power generation.

[0024] Among them, a heat pipe is arranged in the pool body 1, and the outer end of the heat pipe is delayed to the external utilization position. The moving assembly includes two guide rods 10 arranged at intervals, a screw rod 11 and a first motor 12. The guide rod 10 passes through the movable seat 8 and the end is fixedly connected to the side plate 7. The screw rod 11 passes through the movable seat 8 and is threadedly connected to the movable seat 8. The end of the screw rod 11 is rotatably mounted on the side plate 7. The first motor 12 is fixedly mounted on the side plate 7 and the output shaft is fixedly connected to the screw rod 11. The lifting mechanism includes two groups of symmetrically distributed lifting assemblies, and the lifting assembly includes a bracket 13, which is fixedly connected to one side of the pool body 1. A rotating shaft 14 is rotatably mounted on the bracket 13. Two winding wheels 15 arranged at intervals are fixedly mounted on the rotating shaft 14. A rope body 16 is fixedly connected inside the winding wheel 15, and the other end of the rope body 16 is fixedly connected to the water storage tank 4. Two guide wheels 17 arranged at intervals are rotatably mounted on the pool body 1, and the rope body 16 passes through the guide wheels 17. The brackets 13 are all fixedly mounted with a second motor 18, and the output shaft of the second motor 18 is fixedly connected to the rotating shaft 14. A temperature detector is installed on the pool body 1. The water tank 4 is placed in the pool body 1 and filled with hot water. During the heat dissipation process, the second motor 18 drives the reel 15 to rotate, and the reel 15 reels the rope 16 and can lift the water tank 4 to a high place. The water tank 4 is separated from the water surface, and the water in it is discharged from the drain tank 5, thereby driving the water in the pool body 1 to flow.

[0025] The working principle of the utility model is as follows: the water inlet pipe 2 is connected to the water outlet of the turbine, hot water enters the pool body 1 through the water inlet pipe 2, and the heat inside the pool body 1 is dissipated through the heat dissipation fins 6, thereby performing secondary cooling on the cooling water of the turbine, improving the utilization rate of the cooling water, and ensuring that the relevant components of the generator operate normally at high temperatures. By arranging a heat pipe in the pool body 1, the heat pipe absorbs the waste heat and recycles the waste heat for building heating or power generation. The first motor 12 drives the screw rod 11 to rotate, which can drive the movable seat 8 to move along the direction of the guide rod 10. The cotton block 9 on the movable seat 8 can clean the dust on the surface of the heat dissipation fin 6 during the movement, and the thermal resistance of the heat dissipation fin 6 is reduced. The heat can be more smoothly dissipated into the air through the heat dissipation fins, thereby improving the heat dissipation efficiency. The dust may contain corrosive substances, and long-term attachment to the heat dissipation fins will accelerate the corrosion of metal parts. Regular cleaning can reduce this corrosion effect and extend the service life of the equipment.

[0026] The water storage tank 4 is placed in the pool body 1 and filled with hot water. During the heat dissipation process, the second motor 18 drives the winding wheel 15 to rotate. The winding wheel 15 winds up the rope body 16 and can lift the water storage tank 4 to a high place. The water storage tank 4 is separated from the water surface, and the water therein is discharged from the leakage tank 5, thereby driving the water in the pool body 1 to flow, which can accelerate the heat dissipation rate of the circulating water.

[0027] The above is only a preferred embodiment of the present invention. It should be noted that, for ordinary technicians in the technical field, several improvements and modifications can be made without departing from the principle of the present invention, and these improvements and modifications should also be regarded as the protection scope of the present invention. The structures, devices and operating methods not specifically described and explained in the present invention shall be implemented according to the conventional means in the field unless otherwise specified and limited.

Claims

1. A cooling water recycling equipment for a hydropower station, characterized in that: The invention comprises a pool body (1), one end of which is connected to and fixedly mounted with a water inlet pipe (2), a water pump (3) is mounted inside the pool body (1), the water inlet pipe of the water pump (3) is connected to the inner cavity of the pool body (1), and the drainage pipe of the water pump (3) extends to the outside of the pool body (1); A water storage tank (4) is placed in the pool body (1), a water leakage groove (5) is provided at the bottom of the water storage tank (4), the water leakage groove (5) penetrates the water storage tank (4) and the cross section of the water leakage groove (5) is arranged in a strip shape, a lifting mechanism is installed on the pool body (1), the lifting mechanism is connected to the water storage tank (4), the lifting mechanism is used to drive the water storage tank (4) to move up and down, a plurality of equidistantly distributed heat dissipation fins (6) are fixedly installed on both sides of the pool body (1), the heat dissipation fins (6) extend into the interior of the pool body (1), and both sides of the pool body (1) are arranged A cleaning mechanism is provided, the cleaning mechanism being used to clean the surface of the heat dissipation fins (6), the cleaning mechanism comprising two side panels (7) fixedly mounted on the pool body (1), a movable seat (8) being provided between the two side panels (7), a plurality of cotton blocks (9) being fixedly connected to the movable seat (8), the cotton blocks (9) being respectively located between adjacent heat dissipation fins (6), the cotton blocks (9) being in contact with the heat dissipation fins (6), a moving component being provided between the two side panels (7), the moving component being connected to the movable seat (8) and being used to drive the cotton blocks (9) to move.

2. A cooling water recycling equipment for a hydropower station according to claim 1, characterized in that: The moving assembly comprises two guide rods (10) arranged at intervals, a screw rod (11) and a first motor (12); the guide rod (10) passes through the movable seat (8) and the end thereof is fixedly connected to the side plate (7); the screw rod (11) passes through the movable seat (8) and is threadedly connected to the movable seat (8); the end of the screw rod (11) is rotatably mounted on the side plate (7); the first motor (12) is fixedly mounted on the side plate (7) and the output shaft is fixedly connected to the screw rod (11).

3. A cooling water recycling equipment for a hydropower station according to claim 2, characterized in that: The lifting mechanism comprises two groups of symmetrically distributed lifting components, the lifting components comprising a bracket (13), the bracket (13) being fixedly connected to one side of the pool body (1), a rotating shaft (14) being rotatably mounted on the bracket (13), two intervally arranged winding wheels (15) being fixedly mounted on the rotating shaft (14), a rope body (16) being fixedly connected inside each of the winding wheels (15), and the other end of the rope body (16) being fixedly connected to the water storage tank (4).

4. A cooling water recycling equipment for a hydropower station according to claim 3, characterized in that: The pool body (1) is rotatably mounted with two guide wheels (17) arranged at intervals, and the rope body (16) passes through the guide wheels (17).

5. A cooling water recycling equipment for a hydropower station according to claim 4, characterized in that: A second motor (18) is fixedly mounted on each of the brackets (13), and an output shaft of the second motor (18) is fixedly connected to the rotating shaft (14).

6. A cooling water recycling equipment for a hydropower station according to claim 5, characterized in that: A temperature detector is installed on the cell body (1).

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