CN217055491U - Liquid replacing device and wind generating set - Google Patents

Abstract

The liquid replacing device comprises a rack, a pump body and a switching module, wherein the pump body is fixed on the rack and is provided with a pump body liquid inlet and a pump body liquid outlet, and the pump body liquid inlet is communicated with a liquid source; the switching module comprises a main body part and a pressure detection device arranged on the main body part, wherein the main body part is provided with a first liquid inlet and a module liquid outlet, the first liquid inlet is communicated with the pump body liquid outlet through a pipeline, and the module liquid outlet is selectively communicated with a liquid inlet pipe of a cabin cooling system of the wind generating set; the pressure detection device is used for monitoring the output pressure of the pump body, and an elevator does not need to be additionally occupied, so that the effective occupancy rate of the elevator is improved.

Description

Liquid replacing device and wind generating set

Technical Field

The utility model belongs to the technical field of wind power generation, especially, relate to a liquid changes device and wind generating set.

Background

In order to maintain a good operation state of the wind turbine generator and avoid local over-high temperature, the wind turbine generator further includes a cooling system, for example, a cooling system may be disposed in the nacelle to cool down components such as a generator.

The cooling system can comprise a liquid cooling system and an air cooling system, and the liquid cooling system is widely used due to the advantages of small occupied area, high cooling efficiency and the like.

At present, when a liquid cooling system in the air is used for replacing cooling liquid, waste liquid in the cooling system is generally required to be discharged into a transit container, the transit container is conveyed to the ground by virtue of an elevator, and then new cooling liquid is conveyed to the air by virtue of the elevator and is injected into the liquid cooling system. So, the time that the change coolant liquid took is longer, needs to take the elevator for a long time, leads to the effective occupancy of elevator to reduce.

SUMMERY OF THE UTILITY MODEL

One of the main objects of the present disclosure is to provide a liquid replacing device, which is suitable for replacing the cooling liquid of the wind generating set.

Aiming at the above purpose, the present disclosure provides the following technical solutions:

in one aspect of the present disclosure, a liquid replacing device is provided, which is suitable for a wind turbine generator system, and includes a frame, a pump body and a switching module, wherein the pump body is fixed on the frame, the pump body has a pump body liquid inlet and a pump body liquid outlet, and the pump body liquid inlet is used for being communicated with a liquid source; the switching module comprises a main body part and a pressure detection device arranged on the main body part, wherein the main body part is provided with a first liquid inlet and a module liquid outlet, the first liquid inlet is communicated with the pump body liquid outlet through a pipeline, and the module liquid outlet is selectively communicated with a liquid inlet pipe of an engine room cooling system of the wind generating set through a pipeline; the pressure detection device is used for monitoring the output pressure of the pump body.

The switching module comprises a first switch valve, and the first switch valve is arranged at the module liquid outlet so as to control the module liquid outlet to be opened or closed.

Optionally, the adaptor module further includes a controller and a pressure switch, the pressure switch is configured to monitor a liquid pressure in the adaptor module, and the controller is configured to receive monitoring data of the pressure switch and control the pressure switch to be turned on or off according to the monitoring data.

Specifically, the switching module still includes flow sensor, flow sensor set up in first inlet, the controller is used for receiving flow sensor's monitoring data and according to monitoring data control the behavior of the pump body.

Furthermore, the switching module further comprises a flow control valve, the flow control valve is used for monitoring the flow of the module liquid outlet, and the controller is used for receiving monitoring data of the flow control valve and controlling the working condition of the pump body according to the monitoring data.

Another exemplary embodiment of the present disclosure, the switching module further includes a second inlet and a second switch valve, the second switch valve is disposed in the second inlet to control the second inlet to be opened or closed, the second inlet is used for communicating with a drain pipe of the cabin cooling system, and when the cabin cooling system drains liquid, the module liquid outlet is used for connecting a waste liquid collecting tank.

Optionally, the switching module further includes an emergency liquid discharge port and a third on-off valve, where the third on-off valve is disposed in the emergency liquid discharge port to control the emergency liquid discharge port to be opened or closed.

Further, the pressure detection device is a digital pressure sensor, and the digital pressure sensor is provided with a display screen so as to display monitoring data.

In another exemplary embodiment of the disclosure, the module liquid outlet is selectively connected to a liquid inlet pipe or a waste liquid collecting tank of the cabin cooling system, and when the module liquid outlet is connected to the liquid inlet pipe, liquid in the liquid source can be injected into the cabin cooling system; when the module liquid outlet is connected with the waste liquid collecting tank, waste liquid in the cabin cooling system can be discharged to the waste liquid collecting tank.

Another aspect of the present disclosure provides a wind turbine generator system including a liquid exchange device as described below.

The liquid replacement device and the wind generating set provided by the disclosure at least have the following beneficial effects: the liquid replacing device provided by the disclosure directly pumps liquid into a high-altitude cooling system by means of the pump body without additionally occupying an elevator, so that the effective occupancy rate of the elevator is improved.

Drawings

The above and/or other objects and advantages of the present disclosure will become more apparent from the following description of the embodiments taken in conjunction with the accompanying drawings, in which:

fig. 1 is a schematic structural diagram of a wind turbine generator system according to an exemplary embodiment of the present disclosure.

Fig. 2 is a schematic structural diagram of the patching module in fig. 1.

Fig. 3 is a diagram illustrating an assembled state of the pump body and the frame in fig. 1.

Description of the reference numerals:

1. a first on-off valve; 2. A second on-off valve;

3. a pressure detection device; 4. A flow control valve;

5. a pressure switch; 6. A third on-off valve;

7. an emergency drain port; 8. A flow sensor;

9. a first liquid inlet; 10. A valve seat;

21. a roller; 30. A source of liquid;

40. a waste liquid collection tank; 50. A cabin cooling system;

100. a switching module; 200. A frame;

300. a pump body; 400. A controller;

301. a liquid inlet of the pump body; 302. A pump body liquid outlet;

303. a servo motor; 304. Pump body base.

Detailed Description

Example embodiments will now be described more fully with reference to the accompanying drawings. However, it should not be understood that the embodiments of the present disclosure are limited to the embodiments set forth herein. The same reference numerals in the drawings denote the same or similar structures, and thus their detailed description will be omitted.

The present disclosure provides a wind generating set, which may include a tower, a nacelle disposed at a top end of the tower, and an impeller coupled to the nacelle, as an example, the impeller may be coupled to a generator disposed in the nacelle to drive the generator to generate electricity through rotation of the impeller.

In order to maintain a good operating environment of the wind turbine generator system, the wind turbine generator system may further include a cooling system to cool down the heat generating components. As an example, the wind park may comprise a nacelle cooling system for cooling the generator. Optionally, a cooling system may be disposed in the nacelle to cool components such as the generator.

As an example, the cabin cooling system 50 may be a liquid cooling system, the liquid cooling system may include a cooling pipe and a cooling liquid disposed in the cooling pipe, the cooling system provided by the present disclosure may include a liquid exchange device and a cooling pipe, and the present embodiment will be described by taking the cabin cooling system in the cabin as an example.

Referring to fig. 1 to 3, in detail, the liquid exchange device includes a rack 200, a pump body 300 and a switching module 100, the pump body 300 is fixed on the rack 200, the pump body 300 has a pump body liquid inlet 301 and a pump body liquid outlet 302, the pump body liquid inlet 301 is used for communicating with the liquid source 30; the switching module 100 comprises a main body part 10 and a pressure detection device 3 arranged on the main body part 10, wherein the main body part 10 is provided with a first liquid inlet 9 and a module liquid outlet, the first liquid inlet 9 is communicated with a pump body liquid outlet 302 of a pump body 300 through a pipeline, and the module liquid outlet is used for being communicated with an engine room cooling system 50 of the wind generating set; the pressure detection device 3 is used to monitor the output pressure of the pump body 300.

The utility model provides a wind generating set adds new coolant liquid through this liquid change device in to the cooling pipeline, perhaps changes the waste liquid discharge in the cooling pipeline with the help of this liquid, need not with the help of the elevator to can avoid the elevator to be taken by inefficacy, improve the effective occupancy of elevator.

For example, the adaptor module 100 may be fixed to the frame 200, but not limited thereto, and may also be fixed to the pump body 300.

The liquid replacement device can monitor the output pressure of the pump body 300 in real time by arranging the pressure detection device 3, so as to determine whether the filling pressure and the filling amount of the cooling liquid in the cabin cooling system 50 are qualified. As an example, the pressure detecting device 3 may be a digital pressure sensor, and may have a display screen to display the output pressure of the pump body 300, so that the operator can visually know the coolant filling pressure.

In the present disclosure, the liquid replacement device may be used as an external auxiliary device of the nacelle cooling system 50, and may communicate with the nacelle cooling system when the coolant needs to be injected into the nacelle cooling system 50 or when the waste liquid in the nacelle cooling system 50 needs to be discharged. So, for cabin cooling system 50's liquid change has improved the convenience through using this liquid to change the device, and the liquid changes the device and can the selective switch-on, when the liquid is changed the device and is idle, need not to monitor it to cabin cooling system 50's fortune dimension cost has been reduced.

Further, in order to improve the convenience of assembling and disassembling the liquid exchange device, the liquid pipeline in the liquid exchange device may be connected by using a quick coupling, but not limited thereto. To reduce the development cost of the liquid exchange device, the quick connector is commercially available, for example, but not limited to, the quick connector may be a ferrule type pipe connector, which will not be described herein.

Referring to fig. 2, the frame 200 that this disclosure provided can be squirrel-cage structure, and this frame 200 has and holds the chamber, and the pump body 300 can set up and should hold the intracavity, so can protect the pump body 300, avoid accidental to collide with. In the process of carrying the liquid replacement device, the frame 200 in the squirrel cage structure is convenient for an operator to grasp, thereby further improving the use convenience of the liquid replacement device. Further, the bottom of the frame 200 may be provided with a roller 21 to facilitate pushing and pulling the position of the liquid exchange device. Optionally, in order to improve the reliability of the fluid exchange device, the frame 200 further includes a parking brake (not shown) to prevent the frame 200 from rolling when the fluid exchange device is transported to a predetermined position.

The pump body 300 may be fixed to the frame 200 by a welding process, or the pump body 300 may be coupled to the frame 200 by fasteners, which are not limited herein.

As an example, the liquid exchange device further includes a servo motor 303, and an output shaft of the servo motor 303 may be connected to the pump body 300 to drive the pump body 300 to operate through the servo motor 303, that is, the servo motor 303 is used as a driving member of the pump body 300 in this embodiment, but not limited thereto. The liquid replacing device provided by the disclosure is composed of a pump body 300 and a servo motor 303 which form a power source together and provide power for the liquid replacing device.

With continued reference to fig. 1 to 3, the adaptor module 100 includes a first switch valve 1, and the first switch valve 1 is disposed at the module liquid outlet to control the module liquid outlet to open or close. In this way, the first switch valve 1 can selectively control the connection between the adaptor module 100 and the cabin cooling system, and prevent the backflow of the cooling liquid, thereby further improving the reliability of the liquid exchange device. Further, the adaptor module 100 further includes a flow sensor 8, the flow sensor 8 is disposed on the first liquid inlet 9, and the flow sensor 8 is configured to monitor a liquid flow entering the main body 10, so as to control a liquid filling flow of the cabin cooling system.

Optionally, the patching module 100 further comprises a pressure switch 5, the pressure switch 5 being configured to monitor a liquid pressure inside the patching module 100, thereby controlling a liquid filling pressure of the cabin cooling system. Therefore, the pressure switch 5 is matched with the flow sensor 8 to monitor the adding pressure and the filling flow of the cooling liquid of the cabin cooling system, and the use reliability of the liquid replacing device is further improved.

Further, the switching module 100 further includes a controller 400, and the controller 400 is configured to receive the monitoring data of the pressure switch 5 and control the pressure switch to be turned on or off according to the monitoring data. The pressure switch 5 sets a predetermined pressure, and when the actual pressure value monitored by the pressure switch 5 is smaller than the predetermined pressure, the pressure switch 5 may be in a conducting state, and at this time, the cooling liquid in the adaptor module 100 may smoothly enter the cabin cooling system. When the actual pressure value monitored by the pressure switch 5 is greater than the predetermined pressure, the controller 400 controls the pressure switch to close, and at this time, the cooling liquid in the adaptor module 100 does not enter the cabin cooling system any more, so as to implement overpressure protection on the cabin cooling system, so that the filling pressure of the cabin cooling system does not exceed the predetermined pressure. For example, the controller 400 may control the servo motor 303 to stop operating, that is, the pump body 300 to stop operating, when the pressure switch 5 is in the off state, but not limited thereto.

In addition, the controller 400 can receive the flow data from the flow sensor 8, and can control the servo motor 303 to stop operating, that is, the pump body 300 to stop operating, according to the flow data, but the invention is not limited thereto.

According to the liquid replacing device provided by the disclosure, the filling flow of the cabin cooling system is prevented from being too large or too small through the cooperation of the flow sensor 8 and the controller 400; by means of the cooperation of the pressure switch 5 and the controller 400, the cabin cooling system is prevented from being charged with too much or too little pressure. When the monitoring data of the flow sensor 8 is not within the predetermined range, the controller 400 issues a failure signal to prompt the operator. When the monitored data of the pressure switch 5 is not within the predetermined range, the controller 400 issues a failure signal to prompt the operator. The liquid replacement device can be normally operated only when both the monitoring data of the flow sensor 8 and the monitoring data of the pressure switch 5 are within the predetermined range.

In this embodiment, the liquid exchange device includes the flow sensor 8, the pressure switch 5, and the controller 400, and the coolant is safely and reliably filled into the cabin cooling system by the cooperation of the flow sensor 8, the pressure switch 5, and the controller 400, so that the use reliability of the liquid exchange device is further improved.

With continued reference to fig. 1 to 3, the adaptor module 100 further includes a flow control valve 4, the flow control valve 4 is configured to monitor a flow rate of the module liquid outlet, and the controller 400 is configured to receive monitoring data of the flow control valve 4, and control a working condition of the pump body 300 according to the monitoring data, so as to control a filling speed of the cooling liquid.

Further, in order to reduce the steps of disassembling and assembling the liquid replacement device, the switching module 100 further includes a second liquid inlet and a second switch valve 2, the second switch valve 2 is disposed on the second liquid inlet to control the second liquid inlet to be opened or closed, the second liquid inlet is used for communicating with a liquid discharge pipe of the cooling system, and the module liquid outlet is used for connecting the waste liquid collecting tank 40.

Specifically, when using liquid to change the device, be particularly useful for cabin cooling system's coolant liquid change process, can be connected second inlet with cabin cooling system's fluid-discharge tube earlier, and initially, second ooff valve 2 can be in the off-state, and cabin cooling system does not switch on through second inlet and liquid change device promptly.

Meanwhile, the first inlet 9 may be connected to the pump body outlet 302, and the pump body inlet 301 is communicated to a liquid source, and initially, the pump body 300 is not started, that is, the coolant in the liquid source cannot actively flow to the cabin cooling system in the air.

Further, the module liquid outlet may be selectively connected to the liquid inlet pipe of the waste liquid collecting tank 40 or the cabin cooling system 50, and initially, the first switch valve 1 is in a closed state, i.e. the cabin cooling system is not communicated with the liquid exchange device through the module liquid outlet.

The module outlet is connected to the waste liquid collection tank 40 or to the cabin cooling system, and needs to be determined according to different operating modes. In particular, the replacement of the cooling liquid in the cabin cooling system may generally comprise a waste liquid cleaning process and a new liquid addition process.

When cooling liquid needs to be added to the cabin cooling system, the module liquid outlet is connected with a liquid inlet pipe of the cabin cooling system. Specifically, in the process of adding the new liquid, the first on-off valve 1 is in an open state, the second on-off valve 2 is in a closed state, the pump body 300 is started, and under the pressure action of the pump body 300, the new liquid can be pressed or sucked into the pump body 300 from the liquid source, and then enters the cabin cooling system after passing through the adaptor module 100. As an example, fresh liquid may enter the pump body 300 from the pump body inlet 301, exit the pump body 300 through the pump body outlet 302, enter the adaptor module 100 through the first inlet port 9, and exit the adaptor module 100 through the module outlet to enter the cabin cooling system.

The module outlet may be connected to a waste liquid collection tank 40 when it is desired to drain the waste liquid from the cabin cooling system. Specifically, in the waste liquid cleaning process, the liquid exchange device may be used to guide the waste liquid in the cabin cooling system to be discharged into the waste liquid collecting tank 40, at which time the pump body 300 stops operating, the first on-off valve 1 is in an open state, and the second on-off valve 2 is in an open state.

Alternatively, the liquid exchange device may be arranged below the nacelle, for example, but not limited to, the liquid exchange device may be arranged on land or sea where the wind turbine is located, and since the terrain of the nacelle cooling system is higher than that of the liquid exchange device, the flow of the waste liquid may be achieved by using the difference in terrain between the liquid exchange device and the nacelle cooling system during the waste liquid cleaning process without the aid of the pump body 300.

Since the cabin cooling system is located in the air, the waste liquid in the cabin cooling system is at a high potential energy, that is, the waste liquid can flow downward under the action of gravity, and the waste liquid flowing out of the liquid discharge pipe of the cabin cooling system enters the adapter module 100 through the second liquid inlet, and then leaves the adapter module 100 through the module liquid outlet and enters the waste liquid collecting tank 40.

So, when using liquid to change the device and carrying out the coolant liquid to cabin cooling system and change, can all close first ooff valve 1 and the second ooff valve 2 of switching module 100 earlier, and be connected first inlet 9 and pump body liquid outlet 302, be connected second inlet and cabin cooling system's fluid-discharge tube, only adjust the module liquid outlet can, in the new liquid interpolation process, be connected module liquid outlet and cabin cooling system's feed liquor pipe, in order to be arranged in to the new coolant liquid of maring in the feed liquor pipe (new liquid). In the waste liquid cleaning process, the pipeline of the module liquid outlet is disconnected from the liquid inlet pipe, the pipeline is connected to the waste liquid collecting tank 40, the first switch valve 1 and the second switch valve 2 are both opened, and the waste liquid of the cabin cooling system can flow into the waste liquid collecting tank 40. The pipeline dismounting process of the liquid replacing device is reduced, and therefore the replacing efficiency of the cooling liquid of the cabin cooling system is improved.

In order to further improve the reliability of the liquid exchange device, the adaptor module 100 further includes an emergency liquid discharge port 7 and a third on-off valve 6, and the third on-off valve 6 is disposed on the emergency liquid discharge port 7 to control the emergency liquid discharge port 7 to be opened or closed. In case of a module outlet drain failure, the emergency drain port 7 may be used for draining to avoid excessive pressure in the adaptor module 100. The emergency liquid discharge port 7 is provided with a third on-off valve 6, and the opening or closing of the emergency liquid discharge port 7 is controlled by the third on-off valve 6, the third on-off valve 6 is in a closed state under normal conditions, and the third on-off valve 6 can be opened under emergency conditions such as a fault, so that pressure relief is realized. For example, the third on/off valve 6 may be a manual butterfly valve or an automatic on/off valve, but not limited thereto.

The liquid replacing device can directly convey the cooling liquid from the low potential energy position to the high potential energy position, the step that the cooling liquid of the cabin cooling system is smoother is simplified, the replacing efficiency is improved, an elevator is not needed in the process, and the effective occupancy rate of the elevator is improved.

Besides, the liquid replacing device provided by the disclosure can be selectively installed on the wind generating set, so that the wind generating set does not need to be monitored in the running process, and the operation and maintenance cost is reduced. Further, the pipeline of the liquid replacing device can be arranged outside the tower, so that the risk that the liquid replacing device is accidentally leaked to contact with electrical elements in the tower is reduced, and the use reliability of the wind generating set is further improved.

The liquid exchange device provided by the present disclosure is particularly suitable for large megawatt models, such as, but not limited to, tower heights of not less than 130 meters.

In the description of the present disclosure, it is to be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, merely for convenience in describing the present disclosure and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and therefore, should not be construed as limiting the present disclosure.

The terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present disclosure, the meaning of "a plurality" is two or more unless otherwise specified.

In the description of the present disclosure, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly, and for example, may be fixedly connected, detachably connected, or integrally connected, mechanically connected, electrically connected, or communicatively connected; they may be directly connected or indirectly connected through intervening media, or may be connected through the use of two elements or the interaction of two elements. The specific meaning of the above terms in the present disclosure can be understood in specific instances by those of ordinary skill in the art.

The described features, structures, or characteristics of the disclosure may be combined in any suitable manner in one or more embodiments. In the above description, numerous specific details are provided to give a thorough understanding of embodiments of the disclosure. One skilled in the relevant art will recognize, however, that the embodiments of the disclosure may be practiced without one or more of the specific details, or with other methods, components, materials, and so forth. In other instances, well-known structures, materials, or operations are not shown or described in detail to avoid obscuring aspects of the disclosure.

Claims (10)

1. A fluid exchange device adapted for use with a wind turbine generator system, the fluid exchange device comprising:

a frame (200);

the pump body (300) is fixed on the rack (200), the pump body (300) is provided with a pump body liquid inlet (301) and a pump body liquid outlet (302), and the pump body liquid inlet (301) is used for being communicated with a liquid source (30);

switching module (100), switching module (100) include main part (10) and set up in pressure measurement (3) on main part (10), wherein, main part (10) have first inlet (9) and module liquid outlet, first inlet (9) through the pipeline with pump body liquid outlet (302) intercommunication, module liquid outlet selectively through the pipeline with the feed liquor pipe intercommunication of wind generating set's cabin cooling system (50), pressure measurement (3) are used for the monitoring the output pressure of the pump body (300).

2. The liquid changing apparatus as claimed in claim 1, wherein the switching module (100) comprises a first on-off valve (1), and the first on-off valve (1) is disposed at the module liquid outlet to control the module liquid outlet to be opened or closed.

3. The fluid exchange device according to claim 1, wherein the adaptor module (100) further comprises a controller (400) and a pressure switch (5), the pressure switch (5) is configured to monitor the fluid pressure in the adaptor module (100), and the controller (400) is configured to receive monitoring data of the pressure switch (5) and control the pressure switch (5) to be turned on or off according to the monitoring data.

4. The fluid exchange device according to claim 3, wherein the adapter module (100) further comprises a flow sensor (8), the flow sensor (8) is disposed at the first inlet (9), and the controller (400) is configured to receive monitoring data of the flow sensor (8) and control the operating condition of the pump body (300) according to the monitoring data.

5. The fluid exchange device according to claim 3 or 4, wherein the adaptor module (100) further comprises a flow control valve (4), the flow control valve (4) is configured to monitor the flow rate of the module outlet, and the controller (400) is configured to receive monitoring data from the flow control valve (4) and control the operating condition of the pump body (300) according to the monitoring data.

6. The liquid exchange device according to claim 1, wherein the adapter module (100) further comprises a second liquid inlet and a second on-off valve (2), the second on-off valve (2) is disposed on the second liquid inlet to control the second liquid inlet to be opened or closed, the second liquid inlet is used for communicating with a liquid discharge pipe of the cabin cooling system (50), and when the cabin cooling system (50) discharges liquid, the module liquid outlet is used for connecting with a waste liquid collecting tank (40).

7. The fluid exchange device according to claim 5, wherein the adapter module (100) further comprises an emergency drain port (7) and a third on/off valve (6), wherein the third on/off valve (6) is disposed at the emergency drain port (7) to control the emergency drain port (7) to be opened or closed.

8. Liquid exchange device according to claim 1, wherein the pressure detection means (3) is a digital pressure sensor having a display screen to enable display of monitored data.

9. The fluid changing apparatus according to claim 1, wherein the module outlet is selectively connectable to an inlet pipe or a waste fluid collecting tank (40) of the cabin cooling system (50), and wherein the module outlet is connectable to the inlet pipe such that fluid from the fluid source (30) can be added to the cabin cooling system (50); when the module liquid outlet is connected to the waste liquid collection tank (40), waste liquid in the cabin cooling system (50) can be discharged to the waste liquid collection tank (40).

10. A wind park comprising a liquid exchange device according to any of claims 1 to 9.

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