Flushing device for cooler of wind generating set and wind power generation system

Abstract

The utility model discloses a wind generating set cooler flushing device and a wind power generation system, which comprise a water storage part and a water delivery component, the water storage part is used for storing flushing water, and the water storage part is positioned at the bottom of a tower drum of the wind power generation system; the water conveying assembly comprises a water pump, a motor, a water inlet pipe and a water outlet pipe, the tower inner water pipe extends to the top of the tower barrel and is connected with the high-pressure water gun, and water is sucked out of the water storage part and conveyed into a wind turbine generator cabin along the tower inner water pipe. The water storage portion is arranged at the bottom of the tower barrel, manual high-altitude carrying is omitted, labor intensity and climbing risks are reduced, the water conveying assembly directly conveys water to the top of the tower through a water pipe in the tower, the operation process is simplified, the high-pressure water pump and the motor work cooperatively, stable water pressure conveying to a cabin is guaranteed, and the traditional problem of insufficient lift is solved; dirt of the cooler is rapidly removed, efficiency is improved, heat dissipation performance is guaranteed, operation safety and equipment durability are both considered, and efficient and reliable support is provided for unit operation and maintenance.

Description

TECHNICAL FIELD

[0001] The utility model relates to wind power generation equipment technical field, concretely relates to a kind of wind turbine generator unit cooler flushing device and wind power generation system. BACKGROUND

[0002] At present, water pump is widely used in high-pressure water gun, oil circuit and pressure system, usually driven by motor. Ordinary water pump mainly uses single-phase electricity and lithium battery as power source, and the water outlet pressure is determined by impeller size, pump body shape and rotation speed. For the flushing needs of wind turbine generator unit cooler, there are many deficiencies in the high-pressure water pump on the market. These water pumps are often limited by height, voltage and other factors, which are not convenient to use in the maintenance of wind turbine generator unit.

[0003] Traditional water pump needs artificial to take water storage container and water pump to tower, and then can start working, which increases operation difficulty and labor cost, and the working pressure of the commonly used flushing device is about 1Mpa, which cannot meet the requirements of wind turbine generator unit cooler flushing, the water outlet efficiency is low, and the flushing time is long. The utility model provides a new solution to the above problems. UTILITY MODEL CONTENT

[0004] The utility model discloses in order to overcome at least one of the above-mentioned shortcomings, provide a kind of wind turbine generator unit cooler flushing device and wind power generation system. The purpose of the utility model can be achieved by using the following technical solutions:

[0005] The first aspect of the application provides a kind of wind turbine generator unit cooler flushing device, applied to wind power generation system, the flushing device includes:

[0006] Water storage part, for storing flushing water, the water storage part is located at the bottom of the tower drum of wind power generation system;

[0007] Water delivery assembly, the water delivery assembly includes water pump, motor, water inlet pipe and water outlet pipe, the water inlet end of the water pump is connected with the water storage part by the water inlet pipe, the water outlet end of the water pump is connected with the tower inner water pipe on the tower drum by the water outlet pipe, the tower inner water pipe extends to the top of tower drum and is connected with high-pressure water gun, for water from the water storage part is sucked and transported to wind turbine generator cabin along the tower inner water pipe.

[0008] In a kind of implementable manner, the water storage part includes:

[0009] Water storage container, the water storage container is equipped with water inlet and water valve.

[0010] In an embodiment, the motor drives the water pump to deliver water in the water storage part to the washing position at the top of the tower at a pressure of not less than 100 m, and the working pressure of the water pump is not less than 10 MPa.

[0011] In an embodiment, the motor comprises a three-phase asynchronous motor, the power of the three-phase asynchronous motor is not less than 5 kW, and the water pump is rigidly connected to the motor through a shaft coupling.

[0012] In an embodiment, the wind turbine generator set cooler flushing device further comprises:

[0013] An electric control box is configured to be connected to a power supply, and comprises a contactor and a switch, which are configured to manually or automatically control the operating state of the motor.

[0014] In an embodiment, the water delivery assembly further comprises:

[0015] A pressure switch is arranged on the water outlet pipe and connected to the electric control box, and is configured to send an alarm and / or automatically turn on a circuit to start the motor when detecting that the water pressure is lower than a preset threshold, and send an alarm and / or automatically turn off a circuit to stop the motor when the water pressure reaches a rated pressure.

[0016] In an embodiment, the water delivery assembly further comprises:

[0017] A return water pipe is connected to the water outlet pipe through a tee joint, and is configured to recycle residual water.

[0018] A return water valve is arranged on the return water pipe.

[0019] In an embodiment, the wind turbine generator set cooler flushing device further comprises a trolley, and the trolley comprises:

[0020] A support plate is arranged on the support plate, and the water storage part and the water delivery assembly are arranged on the support plate.

[0021] A moving wheel is arranged on the support plate.

[0022] A handle is arranged on one side of the support plate, and is configured to push or pull the trolley to move.

[0023] In a first aspect, the application provides a wind power generation system, which comprises any one of the wind turbine generator set cooler flushing devices in the first aspect; and

[0024] A tower is arranged with a high-pressure water gun.

[0025] A tower water pipe is arranged to extend from the bottom of the tower to the top of the tower and connected to the high-pressure water gun.

[0026] In an implementation, the wind power generation system comprises:

[0027] A ladder is longitudinally arranged on the tower barrel, the flushing device is located at the bottom of the tower barrel, and the tower internal water pipe extends to the high-pressure water gun along the ladder.

[0028] The wind turbine cooling device and the wind power generation system according to the present disclosure have the beneficial technical effects that: the water storage part is arranged at the bottom of the tower barrel, manual high-altitude carrying is omitted, labor intensity and climbing risk are reduced, the water delivery assembly directly delivers water to the top of the tower by using the tower internal water pipe, an operation process is simplified, the high-pressure water pump and the motor work cooperatively, water pressure is stably delivered to the nacelle, a traditional insufficient lift problem is solved, precise flushing by the high-pressure water gun is combined, cooling device dirt is quickly removed, efficiency is improved and heat dissipation performance is guaranteed, operation safety and equipment durability are taken into account, efficient and reliable support is provided for unit operation and maintenance. BRIEF DESCRIPTION OF DRAWINGS

[0029] In the drawings, the following is shown by way of example and without limitation:

[0030] Figure 1 A structure schematic view of the wind power generation system according to an embodiment of the present disclosure is shown;

[0031] Figure 2 Another structure schematic view of the wind power generation system according to an embodiment of the present disclosure is shown;

[0032] Figure 3 Still another structure schematic view of the wind power generation system according to an embodiment of the present disclosure is shown;

[0033] Figure 4 Yet another structure schematic view of the wind power generation system according to an embodiment of the present disclosure is shown;

[0034] Figure 5 A structure schematic view of the flushing device according to an embodiment of the present disclosure is shown;

[0035] Figure 6 Another structure schematic view of the flushing device according to an embodiment of the present disclosure is shown;

[0036] Figure 7 Still another structure schematic view of the flushing device according to an embodiment of the present disclosure is shown;

[0037] Figure 8 Yet another structure schematic view of the flushing device according to an embodiment of the present disclosure is shown.

[0038] In the drawings:

[0039] 100, flushing device; 200, high-pressure water gun; 300, tower drum; 310, ladder; 320, water pipe in tower;

[0040] 1, trolley; 11, support plate; 12, handle; 13, moving wheel;

[0041] 2, water storage part; 21, water storage container; 22, water inlet; 23, water outlet valve;

[0042] 3, water delivery assembly; 31, water pump; 32, motor; 33, water inlet pipe; 34, water outlet pipe; 35, pressure switch; 36, water return pipe; 37, water return valve;

[0043] 4, electric control box. DETAILED DESCRIPTION

[0044] In the following detailed disclosure, referring to the drawings, these embodiments are fully described, so that the technical scheme of the utility model is more clear and explicit to those skilled in the art, and the following described embodiments are not limited to this, and the utility model is further described in detail in combination with embodiments and drawings.

[0045] In the utility model, the terms "first", "second", "third" are only for the purpose of description, and cannot be understood as indicating or implying relative importance; the term "multiple" refers to two or more than two, unless otherwise explicitly limited. The terms "mounting", "connection", "connection", "fixing" and the like should be understood in a broad sense, for example, "connection" can be fixed connection, or detachable connection, or integrally connected; "connection" can be directly connected, or indirectly connected through an intermediate medium. For those skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0046] In the description of the utility model, it is understood that the terms "upper", "lower", "left", "right", "front", "rear" and the like indicate the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the utility model and simplifying the description, and are not indicative or implied that the device or unit referred to must have a specific direction, a specific orientation and operation, therefore, it cannot be understood as a limitation of the utility model.

[0047] The first aspect of the present application is as follows: Figures 1-8As shown, a wind turbine cooling device flushing device is provided for a wind power system, the flushing device 100 comprises a water storage part 2 and a water delivery assembly 3, the water storage part 2 is used for storing flushing water, and the water storage part 2 is located at the bottom of the tower 300 of the wind power system; the water delivery assembly 3 comprises a water pump 31, a motor 32, a water inlet pipe 33 and a water outlet pipe 34, the water inlet end of the water pump 31 is connected with the water storage part 2 through the water inlet pipe 33, the water outlet end of the water pump 31 is connected with the tower water pipe 320 on the tower 300 through the water outlet pipe 34, the tower water pipe 320 extends to the top of the tower 300 and is connected with the high-pressure water gun 200, and is used for sucking water from the water storage part 2 and delivering the water to the inside of the nacelle of the wind turbine 32 along the tower water pipe 320.

[0048] The wind turbine cooling device flushing device provided by the embodiment has the advantages that Figures 1-4 As shown, the water storage part 2 is arranged at the bottom of the tower 300 of the wind power system to store flushing water, and it is not necessary to manually carry the water storage container 21 to the high-altitude operation position, so that the labor intensity of the operator and the climbing risk are significantly reduced, the water source is directly delivered to the top of the tower by the water delivery assembly 3 through the public tower water pipe 320 arranged on the tower 300, and the cumbersome process of frequently going up and down the tower 300 in the traditional way is avoided, so that the overall operation steps of the flushing operation are simplified.

[0049] The wind turbine cooling device flushing device provided by the embodiment has the advantages that the water delivery assembly 3 cooperates with the motor 32 to work, so that the water can be stably delivered from the bottom of the tower 300 to the position of the cooling device in the nacelle at the top, the problem of water pressure attenuation caused by insufficient lift in the traditional device is overcome, the dust, oil stains and other impurities accumulated on the surface of the cooling device can be quickly removed through the precise spraying of the high-pressure water gun 200, the flushing efficiency is improved, and the heat dissipation performance of the cooling system is ensured.

[0050] The wind turbine cooling device flushing device provided by the embodiment has the advantages that through the layout of the movable water storage part 2 and the fixed tower water pipe 320, the flushing process can be quickly started when the cooling device suddenly blocks or fails, the downtime for maintenance is shortened, the continuous and stable operation of the wind turbine is ensured, the loss of power generation caused by overheating of the equipment is reduced, the operation safety, equipment durability and maintenance economy are taken into account, and efficient and reliable technical support is provided for the daily operation and maintenance of the wind turbine.

[0051] In an implementation manner, as shown in Figures 5-8 The water storage part 2 comprises a water storage container 21, and the water storage container 21 is provided with a water inlet 22 and a water outlet valve 23.

[0052] The water storage container 21 can directly use external water source to quickly supplement flushing water through the water inlet 22 arranged at the top, without complex operation or special tools, which significantly improves the water supplement efficiency. The drain valve 23 at the bottom supports quick emptying of residual water or impurities in the container, facilitating regular cleaning and maintenance, avoiding long-term water accumulation causing container corrosion or microbial growth, and prolonging the service life of the water storage container 21.

[0053] The water storage container 21 is located at the bottom of the tower 300, and the water inlet 22 and the drain valve 23 are also located near the ground, so that the operator can complete the water supplement and drainage operation without climbing or using high-altitude equipment, further reducing the operation risk, supporting quick replacement or maintenance, reducing the overall system downtime caused by single component failure, and reducing the maintenance cost.

[0054] It can be understood that the water-cooled heat dissipation wind turbine generator set uses the high specific heat capacity of liquid to quickly absorb and transfer heat, significantly improving the heat dissipation efficiency and reducing the maintenance cost.

[0055] In an implementation, the motor 32 drives the water pump 31 to pressurize and deliver water in the water storage part 2 to the flushing position at the top of the tower 300, the head of the water pump 31 is not less than 100 m, and the working pressure of the water pump 31 is not less than 10 Mpa.

[0056] The high-lift water pump 31 can break through the limitation of gravity on water flow, directly deliver water from the bottom water storage part 2 to the top of the tower through pressurization, avoid the flow attenuation or flow interruption problem caused by insufficient pressure in the traditional delivery mode, and ensure the continuity and reliability of high-altitude flushing operation. The pressurized delivery system adopts integrated design, which can independently complete the high-pressure water delivery task without relying on external auxiliary booster equipment, significantly reducing the equipment occupation space.

[0057] In an implementation, the motor 32 includes a three-phase asynchronous motor 32, the power of the three-phase asynchronous motor 32 is not less than 5 kW, and the water pump 31 and the motor 32 are rigidly connected through a shaft coupling.

[0058] The water pump 31 is directly connected with the three-phase asynchronous motor 32 through a rigid coupling. The power transmission path is short and has no intermediate loss, ensuring that the water pump 31 continuously and stably operates under high pressure conditions, avoiding water pressure fluctuations caused by transmission looseness or slipping, and ensuring the uniformity and impact force of the flushing water flow. The water pump 31 realizes high-lift and high-pressure water delivery based on the driving force of the motor 32, can overcome the resistance caused by the vertical height of the tower cylinder 300, ensures the stable pressure of the water flow from the bottom water storage part 2 to the top of the tower, meets the continuous high-pressure water flow required for the cooler flushing, and avoids the problem of incomplete cleaning caused by insufficient pressure. The three-phase asynchronous motor 32 has the characteristics of simple structure and strong overload capacity, and the rigid connection design with the water pump 31 reduces the occupied space of additional transmission components, supports quick disassembly and maintenance at the bottom of the tower cylinder 300, and reduces the operation and maintenance complexity.

[0059] The power of the three-phase asynchronous motor 32 is not less than 5 kW, which can provide sufficient power support for the water pump 31, ensure that the motor 32 will not reduce efficiency or stop due to overload when delivering high-lift (≥100 m) and high-pressure (≥10 MPa) water flow, and is suitable for vertical water delivery scenarios that need to overcome gravity resistance, ensuring stable operation of the system under high load.

[0060] In an implementable manner, as shown in Figures 5-8 The wind turbine generator set cooler flushing device further includes an electric control box 4 for connecting a power supply. The electric control box 4 includes a contactor and a switchable switch for manually or automatically controlling the operating state of the motor 32.

[0061] The electric control box 4 integrates a 5P leakage protection air switch, a contactor and a switchable switch to form a multi-layer safety barrier. The leakage protection function can quickly cut off abnormal current to prevent electric shock risk; the overload and overcurrent protection mechanism automatically identifies load abnormalities to avoid damage to equipment due to short circuit or current impact, significantly improving system operation safety. The switchable switch supports free switching between manual and automatic control modes to meet different scene requirements. The manual mode is convenient for debugging or emergency intervention; the automatic mode relies on the electromagnetic drive characteristics of the contactor to realize remote and precise control of load start and stop, adapting to the flexible operation needs of the wind turbine generator set under different environmental conditions. The contactor controls the closure of the contact through the coil magnetic field, has fast action response and long contact life, ensures the stable on-off of large current load, and solves the problem that the traditional flushing device 100 in the prior art needs one person to monitor and one person to operate when operating in the wind turbine 32 set to prevent electric shock.

[0062] In an implementable manner, as shown in Figures 5-7As shown, the water delivery assembly 3 further comprises a pressure switch 35 arranged on the water outlet pipe 34 and connected with the electric control box 4, which sends an alarm and / or automatically turns on the circuit to start the motor 32 when detecting that the water pressure is below a preset threshold, and sends an alarm and / or automatically turns off the circuit to stop the motor 32 when the water pressure reaches the rated pressure.

[0063] The pressure switch 35 can monitor the water pressure change of the water outlet pipe 34 in real time, automatically trigger the start and stop of the motor 32, and realize closed-loop control of the water delivery system. When the pressure is below the threshold, the motor 32 is quickly started to supplement the pressure, avoiding the decrease of water delivery efficiency or the idling of the equipment due to insufficient pressure; after the pressure meets the standard, the motor is automatically stopped to prevent energy waste and ensure the system operates as needed, significantly improving the energy efficiency ratio. When the pressure is abnormal, such as leakage or blockage, the pressure switch 35 feeds back a fault signal through the alarm function, facilitating the operator to quickly locate the problem. Combined with the circuit protection mechanism of the electric control box 4, the power supply can be cut off before the pressure is out of control, avoiding the damage of the equipment due to continuous low pressure or the risk of pipe rupture caused by high pressure, and enhancing the safety of the system.

[0064] The precise control based on the pressure threshold can reduce the number of frequent start and stop of the motor 32, and reduce mechanical impact and electrical element wear. At the same time, the intervention of the pressure switch 35 ensures that the system always operates within the rated pressure range, avoiding problems such as seal wear, pump overheating, etc. caused by overpressure or underpressure, prolonging the service life of key components such as water pump 31 and valve. At the same time, it can also reduce the need for manual inspection, especially in remote or complex environments, it can maintain stable operation independently, and the pressure switch 35 cooperates with the electric control box 4 to quickly lock the fault range, shorten the maintenance response time, and reduce downtime loss and operation and maintenance costs.

[0065] In an implementation manner, as shown in Figures 5-7 The water delivery assembly 3 further comprises a backwater pipe 36 and a backwater valve 37, the backwater pipe 36 is connected with the water outlet pipe 34 through a tee joint for recycling residual water, and the backwater valve 37 is arranged on the backwater pipe 36.

[0066] The backwater pipe 36 is connected with the water outlet pipe 34 through a tee joint to form a closed circulation path, which can direct the residual water in the pipe back to the water storage container 21 under the condition of system shutdown or low pressure. The backwater valve 37 realizes precise recycling through opening and closing control, avoiding waste of water resources due to stagnation or discharge. The backwater pipe 36 and the backwater valve 37 work together to realize efficient use of water resources through closed-loop recycling and emptying mechanism.

[0067] In an implementation manner, as shown in Figures 5-8As shown, the wind turbine generator set cooler flushing device further comprises a trolley 1, the trolley 1 comprises a support plate 11, a moving wheel 13 and a handle 12, the water storage part 2 and the water delivery assembly 3 are arranged on the support plate 11, the moving wheel 13 is arranged on the support plate 11, and the handle 12 is arranged on one side of the support plate 11 and used for pushing or dragging the trolley 1 to move.

[0068] The trolley 1 can be placed in the pickup truck compartment, which greatly improves the portability. The trolley 1 is designed by combining the support plate 11, the moving wheel 13 and the handle 12, the support plate 11 provides a stable supporting platform for the water storage part 2 and the water delivery assembly 3, preventing the parts from deviating or the connection from loosening due to bumps during movement, the moving wheel 13 can be configured with a locking or shock absorption function to keep the trolley 1 stationary during fixed-point operation, reducing the risk of accidental displacement caused by water flow impact or operation vibration, and realizing the convenient transfer of the flushing device 100 on the wind turbine generator set site. The staff can easily push or drag the trolley 1 to the designated position, which is especially suitable for complex terrain operation requirements, reduces the time-consuming of equipment transportation, and improves the maintenance response efficiency.

[0069] The first aspect of the present application, as Figures 1-8 As shown, a wind power generation system is provided, comprising the wind turbine generator set cooler flushing device of any one of the first aspect; and a tower cylinder 300 and a tower internal water pipe 320, the tower cylinder 300 is provided with a high-pressure water gun 200, and the tower internal water pipe 320 extends from the bottom of the tower cylinder 300 to the top of the tower cylinder 300 and is connected with the high-pressure water gun 200.

[0070] The tower internal water pipe 320 extends vertically along the tower cylinder 300 and is directly connected with the top high-pressure water gun 200, forming an embedded public water supply channel, without the need for temporary external pipeline layout or relying on manual carrying equipment climbing operation. The high-pressure water gun 200 is fixed to the outer wall of the tower cylinder 300 or the nacelle platform, which can directly perform high-pressure flushing on the blades, coolers or nacelle shell, significantly reducing the frequency of high-altitude climbing and the risk of personnel falling, while shortening the operation preparation time. The tower internal water pipe 320 reuses the existing structural space of the wind turbine generator set, avoiding the need to erect independent water supply facilities, and the integrated design of the tower internal water pipe 320 and the tower cylinder 300 can resist harsh environmental disturbances such as strong winds and vibrations, ensuring the stability of water flow delivery, the water source at the bottom of the tower cylinder 300 directly reaches the high-altitude operation point through the vertical pipeline, reducing the intermediate transfer link, and improving the water resource utilization efficiency.

[0071] The tower internal water pipe 320 can be made of steel wire braided rubber hose, which has good high-pressure resistance and wear resistance.

[0072] The high-pressure water gun 200 can be an adjustable high-pressure water gun 200, which controls the opening and closing of the water and the shape of the outlet water through the terminal control switch, performs directional flushing on the key components of the wind turbine generator set, effectively removes dirt, and ensures the heat dissipation efficiency and equipment performance recovery.

[0073] The quick connector is made of stainless steel material, can resist high pressure impact of the pipeline system and frequent disassembly and assembly operation, avoids deformation, cracking or sealing failure of the traditional plastic connector caused by mechanical stress or repeated friction, and significantly improves the reliability of the connector under complex working conditions such as long-term vibration and temperature change.

[0074] In an implementation manner, as shown in Figures 1-4 The wind power generation system includes a ladder 310 longitudinally arranged on the tower drum 300, the washing device 100 is located at the bottom of the tower drum 300, and the tower water pipe 320 extends along the ladder 310 to the high-pressure water gun 200.

[0075] The rigid frame of the ladder 310 provides natural guidance and uniform force support for the water pipe, avoids pipeline deviation or wear caused by vibration or wind load of the tower drum 300, reduces the dependence on additional installation supports, reduces system complexity, and is convenient, firm and reliable to use without disassembly.

[0076] In specific implementation, the motor 32 is connected with the water pump 31 through a shaft coupling, the water inlet pipe 33 of the water pump 31 is connected to a position about 8 cm away from the bottom of the water storage container 21; the water outlet pipe 34 and the water return pipe 36 are connected to the water outlet pipe 34 of the water pump 31 through a tee joint, the water return pipe 36 is provided with a water return valve 37; the other end of the water return pipe 36 is connected to a high position of the water storage container 21, about 15 cm away from the upper opening; the tower water pipe 320 is fixed on the ladder 310 of the tower drum 300, one end of the tower water pipe 320 is connected to the high-pressure water gun 200, and the water gun is provided with replaceable extension joints to change the water outlet track and shape; the tower water pipe 320 is connected to the water outlet of the water pump 31 through a water outlet pipe 34 about 20 m long, and the tower water pipe 320 serves as a public water pipe and can be repeatedly used. After the water pump 31, the motor 32, the water pipe, the water storage container 21 and the water gun are connected to the power supply, the 5P leakage protection air switch is closed, and the power supply is ready. Then the automatic button is pressed, the contactor is attracted, the motor 32 is powered, the water pump 31 is driven to suck and send water, the water is sucked out of the water storage container 21, sent to the pipeline and sent to the nacelle of the wind turbine 32 along the pipeline. If the water gun is not operated at this time, the control circuit is disconnected when the pressure of the water pump 31 reaches the rated bearing pressure of the pressure switch 35, the contactor is disconnected, and thus the motor 32 and the water pump 31 stop working. After the manual button is pressed, the contactor is attracted, the motor 32 is powered, the water pump 31 is driven to suck and send water, the water is sucked out of the water storage container 21, sent to the pipeline and sent to the nacelle of the wind turbine 32 along the pipeline. The pressure mode is continuous pressure.

[0077] In the description of the present specification, the description of the terms "one embodiment", "some embodiments", "a specific embodiment" and the like means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. In the present specification, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0078] The above is only the preferred embodiment of the present application, and is not intended to limit the present application. For those skilled in the art, the present application can have various changes and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

[0079] In view of the above detailed description, these and other changes can be made to these embodiments, and the present written description includes the best mode of the embodiments disclosed by the best mode. The patent scope obtained by the present application is defined by the claims, and the claims are not limited by the disclosure, and the protection scope of the present application is not limited thereto. Any skilled person in the art, according to the technical scheme and concept of the present application, makes equivalent replacement or change within the scope disclosed by the present application, which is within the protection scope of the present application.

Claims

1. A wind turbine generator set cooler flushing device, characterized by, The flushing device is applied to a wind power generation system, and comprises: a water storage part (2) for storing water for flushing, which is located at the bottom of a tower (300) of the wind power generation system; a water delivery assembly (3) comprising a water pump (31), a motor (32), an inlet pipe (33) and an outlet pipe (34), the inlet end of the water pump (31) being connected with the water storage part (2) through the inlet pipe (33), the outlet end of the water pump (31) being connected with an inner tower water pipe (320) on the tower (300) through the outlet pipe (34), the inner tower water pipe (320) extending to the top of the tower (300) and being connected with a high-pressure water gun (200) for sucking water out of the water storage part (2) and delivering the water to the inside of a nacelle of a wind turbine generator set along the inner tower water pipe (320).

2. A wind turbine generator set cooler flushing device according to claim 1, characterized in that, The water storage part (2) comprises: a water storage container (21) provided with a water inlet (22) and a water outlet valve (23).

3. The wind turbine generator set cooler flushing device according to claim 1, characterized by, The motor (32) drives the water pump (31) to pressurize and deliver water in the water storage part (2) to a flushing position at the top of the tower (300), the lift of the water pump (31) is not less than 100 m, and the working pressure of the water pump (31) is not less than 10 Mpa.

4. The wind turbine generator set cooler flushing device according to claim 3, characterized by, The motor (32) comprises a three-phase asynchronous motor (32) with a power not less than 5 kW, and the water pump (31) is rigidly connected with the motor (32) through a shaft coupling.

5. A wind turbine generator set cooler flushing device according to claim 3 or 4, characterised in that, Further comprising: an electric control box (4) for connecting a power supply, which comprises a contactor and a switchable switch for manually or automatically controlling the operating state of the motor (32).

6. The wind turbine generator set cooler flushing device according to claim 5, wherein, The water delivery assembly (3) further comprises: a pressure switch (35) arranged on the outlet pipe (34) and connected with the electric control box (4), which sends an alarm and / or automatically connects a circuit to start the motor (32) when detecting that the water pressure is lower than a preset threshold, and sends an alarm and / or automatically disconnects a circuit to stop the motor (32) when the water pressure reaches a rated pressure.

7. The wind turbine generator set cooler flushing device according to claim 5, wherein, The water delivery assembly (3) further comprises: a backwater pipe (36) connected with the outlet pipe (34) through a three-way joint for recycling residual water; a backwater valve (37) arranged on the backwater pipe (36).

8. The wind turbine generator set cooler flushing device according to claim 1, wherein, Further comprising a trolley (1) comprising: a support plate (11) on which the water storage part (2) and the water delivery assembly (3) are arranged; moving wheels (13) arranged on the support plate (11); a handle (12) arranged on one side of the support plate (11) for pushing or dragging the trolley (1) to move.

9. A wind power system characterized by The wind turbine generator set cooler flushing device comprises the trolley (1) and the wind turbine generator set cooler flushing device. The tower (300) is provided with the high-pressure water gun (200). A tower inner water pipe (320) extending from the bottom of the tower drum (300) to the top of the tower drum (300) and connected with the high-pressure water gun (200).

10. The wind power generation system according to claim 9, characterized by Comprise: A ladder (310) longitudinally arranged on the tower drum (300), the flushing device is located at the bottom of the tower drum (300), and the tower inner water pipe (320) extends along the ladder (310) to the high-pressure water gun (200).

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