Equipment for testing performance of anti-icing coating of wind power blade

Abstract

The utility model provides a wind power blade anti-icing coating performance test device which comprises a heat preservation chamber, a fixing mechanism arranged on the inner side of the heat preservation chamber and a test plate fixedly installed on the fixing mechanism, a sealing door is hinged to the outer side of the heat preservation chamber, and a controller is fixedly installed on the outer side of the sealing door. According to the performance test equipment for the anti-icing coating of the wind power blade, the side face of the test plate can be sealed through a first heat insulation baffle and a second heat insulation baffle while a first nut and a second nut are tightened, and then the test plate is directly cooled through cold air conveyed in a cold air conveying pipe; the temperature of the test board can be detected through the infrared temperature sensor, the conveying amount of cold air in the cold air conveying pipe can be controlled through the controller, so that the temperature of the surface of the test board is controlled, only the test board is cooled by adopting the structure, the overall space in the equipment does not need to be cooled, and the cost is reduced. And the energy loss is low.

Description

Technical Field

[0001] The utility model relates to the technical field of anti-icing coating performance testing, and specifically discloses a wind turbine blade anti-icing coating performance testing device. Background Art

[0002] Anti-icing coating can prevent ice from forming on the surface of wind turbine blades. After the anti-icing coating is applied to the surface of wind turbine blades, the wind turbine blades need to be tested for icing. During the test, existing test equipment needs to cool down the entire space inside the equipment to achieve cooling of the wind turbine blades. The energy loss is large, and the surfaces of other detection components in the equipment are also prone to icing. During the water spraying operation, the atomized water needs to be blown onto the wind turbine blades by a fan to simulate normal icing conditions. Therefore, a separate air cooling device needs to be set up to cool the air before the fan supplies air, resulting in a large overall power consumption of the equipment. Utility Model Content

[0003] In view of the above-mentioned defects or shortcomings in the prior art, the present application aims to provide a wind turbine blade anti-icing coating performance test device, comprising an insulation chamber, a fixing mechanism arranged inside the insulation chamber and a test plate fixedly installed on the fixing mechanism, a sealed door is hinged on the outside of the insulation chamber, a controller is fixedly installed on the outside of the sealed door, an infrared temperature sensor and an ice sensor electrically connected to the controller are fixedly sleeved inside the top of the insulation chamber, a cold air delivery pipe and a cold air return pipe located inside the test plate are arranged on the inside of the insulation chamber, a first connecting pipe is fixedly installed on one side of the insulation chamber by bolts, a second connecting pipe is fixedly installed on one side of the first connecting pipe by bolts, a fan electrically connected to the controller is fixedly installed on one side of the second connecting pipe by bolts, a third connecting pipe is fixedly installed on one side of the fan by bolts, a fourth connecting pipe is connected to the side of the insulation chamber away from the first connecting pipe, a water storage tank is connected between the fourth connecting pipe and the third connecting pipe, a water spraying mechanism is arranged between the water storage tank and the first connecting pipe, and a water temperature sensor electrically connected to the controller is connected to the bottom of one side of the water storage tank.

[0004] Preferably, one end of the cold air delivery pipe located outside the insulation chamber is connected to a gas flow rate control valve electrically connected to the controller, and the bottom of the insulation chamber is connected to a return pipe connected to the outside of the bottom end of the fourth connecting pipe.

[0005] Preferably, a wind speed sensor electrically connected to the controller is fixedly mounted inside the second connecting pipe.

[0006] Preferably, the water spraying mechanism includes a water spraying pipe arranged inside the first connecting pipe and a water suction pipe connected to the top of the water tank, the outer side of the top end of the water spraying pipe is connected to an atomizing nozzle located inside the first connecting pipe, the outer side of the bottom end of the water spraying pipe is connected to a flow meter electrically connected to the controller, the outer side of the top end of the water suction pipe is connected to a water pump electrically connected to the controller, and the water pump is connected to the flow meter through a water pipe.

[0007] Preferably, the fixing mechanism includes a first fixing rod, a second fixing rod and a third fixing rod arranged on the inner side of the insulation chamber, the outer sides of the first fixing rod, the second fixing rod and the third fixing rod are commonly fixedly sleeved with a first heat insulation baffle, the outer sides of one end of the first fixing rod, the second fixing rod and the third fixing rod are commonly movably sleeved with a second heat insulation baffle located on the outer side of the test plate, the outer sides of the ends of the first fixing rod and the second fixing rod extending out of the second heat insulation baffle are both threadedly sleeved with a first nut, and the outer side of the end of the third fixing rod extending out of the second heat insulation baffle is threadedly sleeved with a second nut.

[0008] Preferably, the test plate is made of the same material as the wind turbine blade, and an anti-icing coating is coated on the outer surface of the test plate.

[0009] Beneficial effects:

[0010] 1. The wind turbine blade anti-icing coating performance test equipment can seal the side of the test plate through the first insulation baffle and the second insulation baffle while tightening the first nut and the second nut, and then directly cool the test plate through the cold air transported inside the cold air delivery pipe, and can detect the temperature of the test plate through the infrared temperature sensor and control the delivery amount of the cold air inside the cold air delivery pipe through the controller, so as to control the temperature of the test plate surface. This structure only cools the test plate, and there is no need to cool the entire space inside the equipment, and its energy loss is low.

[0011] 2. The wind turbine blade anti-icing coating performance test equipment can transport water atomized by the atomizing nozzle to the outer surface of the test plate through the drive of the fan, so that the equipment can simulate the conditions of icing on the surface of the wind turbine blade, and the temperature of the air will decrease after contacting the test plate. The reduced temperature air can pass through the fourth connecting pipe through the water tank to cool the water inside the water tank. At the same time, the air flowing into the water tank driven by the fan can be transported to the inside of the pipeline again through the third connecting pipe for recycling. This structure can make full use of the contact between the cold air and the test plate for heat exchange, realize continuous cooling of the air inside the pipeline, and does not require a separate air cooling device, so that the overall power consumption of the equipment is relatively low. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Other features, objects and advantages of the present application will become more apparent by reading the detailed description of non-limiting embodiments made with reference to the following drawings:

[0013] Figure 1 It is a schematic diagram of the structure of the utility model;

[0014] Figure 2 It is a partial schematic diagram of the structure of the utility model;

[0015] Figure 3 It is a schematic diagram of the fixing mechanism of the utility model;

[0016] Figure 4 It is a partial schematic diagram of the fixing mechanism of the utility model;

[0017] Figure 5 This is a control block diagram of the structure of the utility model.

[0018] In the figure: 1. Insulation chamber; 2. Fixing mechanism; 21. First fixing rod; 22. Second fixing rod; 23. Third fixing rod; 24. First heat insulation baffle; 25. Second heat insulation baffle; 26. First nut; 27. Second nut; 3. Test board; 4. Sealed door; 5. Controller; 6. Infrared temperature sensor; 7. Ice sensor; 8. Cold air delivery pipe; 9. Cold air return pipe; 10. Bolt; 11. First connecting pipe; 12. Second connecting pipe; 13. Fan; 14. Third connecting pipe; 15. Fourth connecting pipe; 16. Water storage tank; 17. Water spraying mechanism; 171. Water spraying pipe; 172. Water pumping pipe; 173. Atomizing nozzle; 174. Flow meter; 175. Water pump; 176. Water pipe; 18. Water temperature sensor; 19. Wind speed sensor. DETAILED DESCRIPTION

[0019] The present application is further described in detail below in conjunction with the accompanying drawings and embodiments. It is to be understood that the specific embodiments described herein are only used to explain the relevant utility model, rather than to limit the utility model. It is also necessary to explain that, for ease of description, only the parts related to the utility model are shown in the accompanying drawings.

[0020] The accompanying drawings in the embodiments of the present invention: different types of section lines in the drawings are not marked according to national standards, nor do they impose any requirements on the materials of the components. Instead, they are used to distinguish the cross-sectional views of the components in the drawings.

[0021] See also Figure 1-5A wind turbine blade anti-icing coating performance test device comprises an insulation chamber 1, a fixing mechanism 2 arranged inside the insulation chamber 1 and a test plate 3 fixedly installed on the fixing mechanism 2, a sealing door 4 is hinged on the outside of the insulation chamber 1, a controller 5 is fixedly installed on the outside of the sealing door 4, an infrared temperature sensor 6 and an ice sensor 7 electrically connected to the controller 5 are fixedly mounted on the top of the insulation chamber 1, the infrared temperature sensor 6 and the ice sensor 7 can be used to detect the temperature and ice of the test plate 3 respectively, a cold air delivery pipe 8 and a cold air return pipe 9 located inside the test plate 3 are arranged on the inside of the insulation chamber 1, a first connecting pipe 11 is fixedly installed on one side of the insulation chamber 1 by bolts 10, a second connecting pipe 12 is fixedly installed on one side of the first connecting pipe 11 by bolts 10, and the second connecting pipe 12 is fixedly installed on one side of the first connecting pipe 11 by bolts 10, and the second connecting pipe 12 is fixedly installed on one side of the first connecting pipe 11 by bolts 10. A fan 13 electrically connected to the controller 5 is fixedly installed on one side of the tube 12 by bolts 10. The fan 13 is driven to supply air to the surface of the test board 3, thereby performing an icing condition mode in a windy state. A third connecting pipe 14 is fixedly installed on one side of the fan 13 by bolts 10. A fourth connecting pipe 15 is connected to the side of the insulation chamber 1 away from the first connecting pipe 11. A water tank 16 is connected between the fourth connecting pipe 15 and the third connecting pipe 14. A water spraying mechanism 17 is provided between the water tank 16 and the first connecting pipe 11. A water temperature sensor 18 electrically connected to the controller 5 is connected to the bottom of one side of the water tank 16. The water temperature sensor 18 can detect the temperature of the water inside the water tank 16 to ensure that the surface of the test board 3 will not freeze due to excessively high water temperature.

[0022] Among them, one end of the cold air delivery pipe 8 located on the outside of the insulation chamber 1 is connected to a gas flow rate control valve electrically connected to the controller 5. The gas flow rate control valve can control the flow of cold air delivered to the inside of the cold air delivery pipe 8, thereby ensuring that the cold air delivery pipe 8 can deliver sufficient cold air to cool the test board 3. The bottom of the insulation chamber 1 is connected to a reflux pipe connected to the outside of the bottom end of the fourth connecting pipe 15. Through the reflux pipe, the water inside the insulation chamber 1 can flow back to the inside of the water storage tank 16 through the reflux pipe and the fourth connecting pipe 15 for recycling.

[0023] Among them, the internal fixed sleeve of the second connecting tube 12 is equipped with a wind speed sensor 19 electrically connected to the controller 5. The wind speed delivered by the fan 13 can be detected through the wind speed sensor 19, and then the rotation speed of the fan 13 is controlled and adjusted through the controller 5 to ensure that the fan 13 can simulate the wind speed of icing conditions, and at the same time ensure that the water sprayed by the atomizing nozzle 173 can be quickly transported to the surface of the test plate 3 under the flow of air.

[0024] Among them, the water spraying mechanism 17 includes a water spraying pipe 171 arranged inside the first connecting pipe 11 and a water suction pipe 172 connected to the top of the water storage tank 16. The outer side of the top end of the water spraying pipe 171 is connected to an atomizing nozzle 173 located on the inner side of the first connecting pipe 11, and the outer side of the bottom end of the water spraying pipe 171 is connected to a flow meter 174 electrically connected to the controller 5. The outer side of the top end of the water suction pipe 172 is connected to a water pump 175 electrically connected to the controller 5. The water pump 175 is connected to the flow meter 174 through a water pipe 176. The flow meter 174 can detect the flow of water delivered to the inside of the water spraying pipe 171, and then the drive of the water pump 175 is controlled by the controller 5, so as to control and adjust the amount of water sprayed from the atomizing nozzle 173.

[0025] Among them, the fixing mechanism 2 includes a first fixing rod 21, a second fixing rod 22 and a third fixing rod 23 arranged on the inner side of the insulation chamber 1, and the outer sides of the first fixing rod 21, the second fixing rod 22 and the third fixing rod 23 are commonly fixedly sleeved with a first heat insulation baffle 24, and the outer sides of the first fixing rod 21, the second fixing rod 22 and one end of the third fixing rod 23 are commonly movably sleeved with a second heat insulation baffle 25 located on the outer side of the test plate 3, and the outer sides of the first fixing rod 21 and the second fixing rod 22 extending out of the second heat insulation baffle 25 are both threadedly sleeved with a first nut 26, and the outer sides of the third fixing rod 23 extending out of the second heat insulation baffle 25 are threadedly sleeved with a second nut 27, and the first heat insulation baffle 24 and the second heat insulation baffle 25 can be used to shield and seal both sides of the test plate 3 to prevent cold air from diffusing to the outside of the test plate 3.

[0026] Among them, the test plate 3 is made of the same material as the wind turbine blade, and an anti-icing coating is coated on the outer surface of the test plate 3. This structure enables the equipment to simulate the icing conditions of the wind turbine blade under normal conditions, so as to accurately detect the performance of the anti-icing coating.

[0027] When the equipment is working, the test board 3 is placed on the outside of the third fixing rod 23 and supported by the first heat insulation baffle 24. After the second heat insulation baffle 25 is mounted on the outside of the first fixing rod 21, the second fixing rod 22 and the third fixing rod 23, the first nut 26 and the second nut 27 are screwed on to complete the installation of the test board 3. The sealing door 4 is closed, and cold air is transported to the inside of the test board 3 through the cold air delivery pipe 8. The test board 3 is cooled by the cold air, and the gas formed after cooling is refluxed through the cold air return pipe 9. The temperature of the test board 3 is detected by the infrared temperature sensor 6, and the gas flow rate control valve is controlled by the controller 5 to control the cold air flow into the cold air delivery pipe 8. This can simulate the freezing temperature of the wind turbine blade surface under normal conditions. The water in the water storage tank 16 can be transported to the spray nozzle by driving the water pump 175. Inside the water pipe 171, the water inside the water spray pipe 171 is atomized by the atomizing nozzle 173 and then sprayed out. The air in the pipe is driven by the fan 13 to flow. The air flow rate generated by the fan 13 is detected by the wind speed sensor 19. The atomized water is driven by the flow of air to be transported to the surface of the test plate 3. The temperature of the air decreases after contacting the surface of the test plate 3. The cooled air is transported to the inside of the water tank 16 through the fourth connecting pipe 15. The water inside the water tank 16 is cooled by driving the air inside the water tank 16 and then transported to the inside of the third connecting pipe 14. Driven by the fan 13, the cold air is circulated and utilized. When the ice sensor 7 detects that the surface of the test plate 3 is frozen, the device is shut down by the controller 5 to complete the test. The contents not described in detail in this specification belong to the prior art known to professional and technical personnel in this field.

[0028] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present application will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0029] The above description is only a preferred embodiment of the present application and an explanation of the technical principles used. Those skilled in the art should understand that the scope of the utility model involved in the present application is not limited to the technical solution formed by a specific combination of the above technical features, but should also cover other technical solutions formed by any combination of the above technical features or their equivalent features without departing from the concept of the utility model. For example, the above features are replaced with the technical features with similar functions disclosed in the present application (but not limited to) by each other to form a technical solution.

Claims

1. A wind turbine blade anti-icing coating performance testing device, comprising an insulation chamber (1), a fixing mechanism (2) arranged inside the insulation chamber (1), and a test plate (3) fixedly mounted on the fixing mechanism (2), characterized in that: The outer side of the insulation chamber (1) is hinged with a sealed door (4), the outer side of the sealed door (4) is equipped with a controller (5), the top of the insulation chamber (1) is internally provided with an infrared temperature sensor (6) and an ice sensor (7) electrically connected to the controller (5), the inner side of the insulation chamber (1) is provided with a cold air delivery pipe (8) and a cold air return pipe (9) located inside the test plate (3), one side of the insulation chamber (1) is equipped with a first connecting pipe (11) by means of bolts (10), one side of the first connecting pipe (11) is equipped with a second connecting pipe (12) by means of bolts (10), and the second connecting pipe (12) is connected to the test plate (3). A fan (13) electrically connected to the controller (5) is installed on one side of the heat preservation chamber (2) by means of bolts (10); a third connecting pipe (14) is installed on one side of the fan (13) by means of bolts (10); a fourth connecting pipe (15) is connected to the side of the heat preservation chamber (1) away from the first connecting pipe (11); a water storage tank (16) is connected between the fourth connecting pipe (15) and the third connecting pipe (14); a water spraying mechanism (17) is provided between the water storage tank (16) and the first connecting pipe (11); a water temperature sensor (18) electrically connected to the controller (5) is connected to the bottom of one side of the water storage tank (16).

2. The wind turbine blade anti-icing coating performance testing equipment according to claim 1 is characterized by: One end of the cold air delivery pipe (8) located outside the insulation chamber (1) is connected to a gas flow rate control valve electrically connected to the controller (5), and the bottom of the insulation chamber (1) is connected to a return pipe connected to the outside of the bottom end of the fourth connecting pipe (15).

3. The wind turbine blade anti-icing coating performance testing equipment according to claim 1 is characterized by: The second connecting pipe (12) is internally mounted with a wind speed sensor (19) which is electrically connected to the controller (5).

4. The wind turbine blade anti-icing coating performance testing equipment according to claim 1 is characterized by: The water spray mechanism (17) comprises a water spray pipe (171) arranged inside the first connecting pipe (11) and a water pumping pipe (172) connected to the top of the water storage tank (16); the outer side of the top end of the water spray pipe (171) is connected to an atomizing nozzle (173) located inside the first connecting pipe (11); the outer side of the bottom end of the water spray pipe (171) is connected to a flow meter (174) electrically connected to the controller (5); the outer side of the top end of the water pumping pipe (172) is connected to a water pump (175) electrically connected to the controller (5); and the water pump (175) is connected to the flow meter (174) through a water pipe (176).

5. The wind turbine blade anti-icing coating performance testing equipment according to claim 1 is characterized by: The fixing mechanism (2) comprises a first fixing rod (21), a second fixing rod (22) and a third fixing rod (23) which are arranged inside the heat preservation chamber (1); the outer sides of the first fixing rod (21), the second fixing rod (22) and the third fixing rod (23) are collectively sleeved with a first heat insulation baffle (24); the outer sides of one end of the first fixing rod (21), the second fixing rod (22) and the third fixing rod (23) are collectively sleeved with a second heat insulation baffle (25) located outside the test plate (3); the outer sides of one end of the first fixing rod (21) and the second fixing rod (22) extending outside the second heat insulation baffle (25) are both threadedly sleeved with a first nut (26); the outer sides of one end of the third fixing rod (23) extending outside the second heat insulation baffle (25) are threadedly sleeved with a second nut (27).

6. The wind turbine blade anti-icing coating performance testing equipment according to claim 1 is characterized by: The test plate (3) is made of the same material as the wind turbine blade, and an anti-icing coating is coated on the outer surface of the test plate (3).

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