A wind power generation liquid cooling pipeline system flow resistance detection device

Abstract

The application discloses a kind of wind power generation liquid cooling pipeline system flow resistance detection equipment, it is related to pipeline detection technical field.The detection box is equipped with temperature regulating mechanism and drying treatment mechanism in inside, water storage tank side wall is connected with backwater pipe, backwater pipe right side end is connected with lead-out pipe, the output end of water guide pump is connected with output pipe, output pipe right side end is connected with lead-in pipe, and the right side end of lead-out pipe and lead-in pipe is equipped with connecting mechanism.This equipment integrates water storage, temperature regulation, flow resistance detection, drying treatment and other functions, can complete flow resistance test under multiple working conditions such as cold water, normal temperature water and high temperature water in single system, realize accurate temperature control of cooling liquid in different temperature range by integrating temperature regulating mechanism and secondary heating tank, simulate temperature change working condition in actual operation, cooperate with the real-time data acquisition of inlet pressure sensor and outlet pressure sensor, provide more comprehensive test for liquid cooling system design, significantly improve test efficiency and equipment utilization.

Description

Technical Field

[0001] This invention relates to the field of pipeline testing technology, and in particular to a flow resistance testing device for a wind power generation liquid cooling pipeline system. Background Technology

[0002] As a crucial carrier of clean energy, wind power equipment generates significant heat during operation, particularly in its core components such as generators and converters. To prevent high temperatures from impacting equipment performance and lifespan, modern wind turbines commonly employ liquid-cooled piping systems for active cooling. This system uses circulating coolant to remove heat from the power generation unit. The design and flow resistance characteristics of the liquid-cooled piping directly determine the heat dissipation efficiency. Excessive flow resistance can lead to insufficient coolant flow, resulting in localized overheating or even equipment failure. Therefore, precise testing of the piping flow resistance is essential before system installation to ensure that heat dissipation performance meets design requirements.

[0003] Traditional flow resistance testing equipment mostly uses the room temperature water flow test method, which can only obtain flow resistance data under a single operating condition and cannot simulate the complex scenario of coolant temperature changes in actual operation. In addition, the inlet and outlet of liquid cooling pipelines are usually connected by flanges, and bolts need to be repeatedly disassembled and installed and gaskets need to be added during testing, which is not only time-consuming, but also poses a risk of leakage. Summary of the Invention

[0004] The purpose of this invention is to provide a flow resistance detection device for a wind power generation liquid cooling pipeline system, which solves the technical problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a flow resistance testing device for a wind power generation liquid cooling pipeline system, comprising a testing box, wherein the testing box is provided with a water storage tank, a water pump, a temperature regulating mechanism and a drying mechanism, wherein the temperature regulating mechanism is used for temperature regulation of the water used for flow resistance testing;

[0006] A storage box is fixedly connected to the outer wall of the testing box. An output pipe is fixedly connected to the output end of the water pump. An inlet pipe is fixedly connected to the port of the output pipe. A return pipe is fixedly connected to the right side wall of the water storage tank. An outlet pipe is fixedly connected to the end of the return pipe away from the water storage tank. A connecting mechanism is provided on the right side of both the outlet pipe and the inlet pipe. Both the outlet pipe and the inlet pipe are connected to the pipeline system to be tested through the connecting mechanism.

[0007] Preferably, the temperature regulation mechanism includes an evaporative cooling outer chamber, a compressor, a condensing heating outer chamber, and a secondary heating chamber, all fixedly installed inside the detection chamber. The evaporative cooling outer chamber is equipped with an evaporative heat absorption tube, and the condensing heating outer chamber is equipped with a condensing heat dissipation tube. Both the evaporative heat absorption tube and the condensing heat dissipation tube are S-shaped.

[0008] Preferably, the input end of the condenser heat dissipation pipe is connected to the output end of the compressor, the output end of the condenser heat dissipation pipe is connected to a cooler connecting pipe, the end of the cooler connecting pipe away from the condenser heat dissipation pipe is connected to the input end of the evaporator heat absorption pipe, and the output end of the evaporator heat absorption pipe is connected to the input end of the compressor.

[0009] Preferably, a water pumping pipe is fixedly connected to the lower end of the evaporative cooling outer box, the lower end of the water pumping pipe passes through the upper side wall of the water storage tank and extends to the bottom of the water storage tank, an input pipe is fixedly connected to the upper end of the side wall of the evaporative cooling outer box, the end of the input pipe away from the evaporative cooling outer box is connected to the input end of the water pump, a water pumping solenoid valve is provided on the water pumping pipe, and a main water valve is provided on the input pipe.

[0010] Preferably, a heating water inlet pipe is fixedly connected to the water pumping pipe, and a heating solenoid valve is installed on the heating water inlet pipe. The water pumping solenoid valve is located on the side of the connection between the water pumping pipe and the heating water inlet pipe, near the evaporative cooling outer box. The end of the heating water inlet pipe away from the water pumping pipe is fixedly connected to the lower end of the condensing heating outer box. A secondary heating pipe is fixedly connected to the right side of the condensing heating outer box. The right side of the secondary heating pipe is connected to the secondary heating box. An electric heating plate is installed inside the secondary heating box. A high-temperature water pipe is fixedly connected to the right side of the secondary heating box. The end of the high-temperature water pipe away from the secondary heating box is connected to the input pipe. A high-temperature water solenoid valve is installed on the high-temperature water pipe.

[0011] Preferably, the connecting mechanism includes a connecting plate, a rod is provided on the left side of the connecting plate, a connecting internal gear ring is rotatably connected to the left end of the connecting plate, a driven gear is threadedly connected to the rod, the right end of the driven gear is rotatably connected to the left end of the connecting plate, the external teeth of the driven gear mesh with the internal teeth of the connecting internal gear ring, a receiving groove is provided on the side wall of the rod, a baffle is provided in the receiving groove, the two connecting plates are respectively connected to the right end of the inlet tube and the right end of the outlet tube, the distance between the inner walls of the left and right sides of the receiving groove is greater than the depth of the receiving groove, the front and rear sides of the baffle are rotatably connected to the front and rear sides of the receiving groove, a connecting groove is provided at the lower end of the baffle, a support spring is fixedly connected to the inner wall of the connecting groove, and the end of the support spring away from the connecting groove is fixedly connected to the lower inner wall of the receiving groove.

[0012] Preferably, a tube is fixedly connected to the right end of the connecting plate, and a connecting hole is provided in the middle of the connecting plate. The two tubes are connected to the inlet tube and the outlet tube respectively through the connecting hole. A sealing gasket is provided on the right end of the connecting plate. The right end of the insert rod passes through the connecting plate and the sealing gasket in sequence and extends to the right side of the sealing gasket. The insert rod and the connecting plate are slidably connected by a limiting slide. A sealing ring is provided on the outer wall of the tube. The outer diameter of the right end of the sealing ring is smaller than the outer diameter of the left end of the sealing ring.

[0013] Preferably, the drying mechanism includes a blower and a hot air duct. The output end of the blower is fixedly connected to a cold air duct. The end of the cold air duct away from the blower is connected to a secondary heating pipe. The hot air duct is connected to a high-temperature water pipe. The end of the hot air duct away from the high-temperature water pipe is connected to an output pipe. An output solenoid valve is provided on the output pipe.

[0014] Preferably, the inlet tube is equipped with an inlet pressure detection sensor, and the outlet tube is equipped with an outlet pressure detection sensor.

[0015] Preferably, the water storage tank has two stabilizing plates on its inner side, each with several water passage holes. The two stabilizing plates divide the water storage tank into three cavities. An ultrasonic liquid level detection sensor is installed on the upper inner wall of the water storage tank, located inside the middle cavity. A filter screen is installed inside the water storage tank, and the connection between the return water pipe and the water storage tank is located above the filter screen.

[0016] Compared with related technologies, the flow resistance detection device for a wind power generation liquid cooling pipeline system provided by the present invention has the following advantages:

[0017] 1. This invention provides a flow resistance testing device for a wind power generation liquid cooling pipeline system. This device integrates functions such as water storage, temperature regulation, flow resistance testing, and drying treatment. It can complete flow resistance testing under various operating conditions, including cold water, normal temperature water, and high temperature water, in a single system. By integrating a temperature regulation mechanism and a secondary heating chamber, it achieves precise temperature control of the coolant within different temperature ranges, simulating actual temperature changes during operation. Combined with real-time data acquisition from inlet and outlet pressure sensors, it provides more comprehensive testing for liquid cooling system design, significantly improving testing efficiency and equipment utilization.

[0018] 2. This invention provides a flow resistance testing device for a liquid-cooled pipeline system for wind power generation. The temperature regulation mechanism adopts a composite method combining compressor refrigeration and condensation heat recovery, which not only achieves rapid cooling of the experimental water, but also utilizes the heat emitted by the refrigeration system to preheat the water, which is energy-saving and environmentally friendly. The electric heating plate provides auxiliary heating and can accurately control the temperature of high-temperature water to meet different testing standards.

[0019] 3. This invention provides a flow resistance testing device for a wind power generation liquid-cooled pipeline system. The testing chamber is equipped with a drying mechanism. The drying mechanism uses the system's waste heat to preheat the blown-in cold air, forming hot air to blow away residual moisture from the tested liquid-cooled pipeline, effectively removing water stains and preventing water stains from affecting subsequent tests or equipment lifespan, thereby improving the equipment's maintenance convenience and testing consistency.

[0020] 4. This invention provides a flow resistance testing device for a wind power generation liquid cooling pipeline system. It uses inlet and outlet pressure sensors to detect the pressure difference across the pipeline in real time. Combined with a stable cavity design, it ensures accurate liquid level detection. The data is displayed intuitively on the screen, allowing users to quickly obtain flow resistance calculation results and improving the reliability and repeatability of test data. The connection mechanism uses gear and ring drive to achieve the extension and locking of the insertion rod. With the help of sealing gaskets and sealing rings, it ensures the sealing and stability of the connection with the liquid cooling pipeline flange. It is easy to operate, reliable in connection, and suitable for testing scenarios with frequent disassembly and assembly. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0022] Figure 2 This is a schematic diagram of the internal structure of the detection box of the present invention;

[0023] Figure 3 This is a schematic diagram of the overall structure of the present invention from another angle;

[0024] Figure 4 This is a schematic diagram of the flow resistance detection structure of the present invention;

[0025] Figure 5 For the present invention Figure 4 Enlarged view of point A in the middle;

[0026] Figure 6 This is a partial cross-sectional schematic diagram of the temperature regulating mechanism of the present invention;

[0027] Figure 7 This is a schematic diagram showing the positional relationship between the temperature regulating mechanism and the drying mechanism of the present invention;

[0028] Figure 8 This is a schematic cross-sectional view of the secondary heating box of the present invention;

[0029] Figure 9 This is a schematic diagram of the connection mechanism of the present invention;

[0030] Figure 10 This is a schematic diagram of the connection mechanism of the present invention from another angle;

[0031] Figure 11 This is a cross-sectional schematic diagram of the present invention in use;

[0032] Figure 12 This is a schematic cross-sectional view of the storage slot structure of the present invention;

[0033] Figure 13 This is a schematic cross-sectional view of the water storage tank of the present invention.

[0034] In the diagram: 1. Detection box; 2. Water storage tank; 3. Ultrasonic liquid level sensor; 4. Filter screen; 5. Storage box; 6. Inlet pipe; 7. Outlet pipe; 8. Connecting mechanism; 801. Connecting plate; 802. Insert pipe; 803. Sealing ring; 804. Sealing gasket; 805. Connecting internal gear ring; 806. Insert rod; 807. Driven gear; 808. Storage slot; 809. Baffle; 810. Connecting slot; 811. Support spring; 9. Inlet pressure sensor; 10. Outlet pressure sensor; 11. Temperature regulation mechanism; 1101. Pumping pipe; 1102. Pumping solenoid valve; 1103. Evaporative cooling outer box; 1104. Compressor; 1105. Condensing heating outer box; 1106. Refrigerator 1107. Connecting pipe; 1108. Evaporation heat absorption pipe; 1109. Condensation heat dissipation pipe; 1110. Heating water inlet pipe; 1111. Heating solenoid valve one; 1111. Input pipe; 1112. Main water valve; 1113. Secondary heating pipe; 1114. Heating solenoid valve two; 1115. Secondary heating box; 1116. High-temperature water pipe; 1117. High-temperature water solenoid valve; 1118. Electric heating plate; 12. Liquid cooling pipeline connection flange; 13. Drying treatment mechanism; 1301. Blower; 1302. Cold air pipe; 1303. Cold air valve; 1304. Hot air pipe; 1305. Hot air valve; 14. Water pump; 15. Output pipe; 16. Return water pipe; 17. Output solenoid valve; 18. Stabilizing plate; 19. Water passage hole. Detailed Implementation

[0035] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0036] Example 1:

[0037] Please see Figure 1 - Figure 8 The present invention provides a technical solution: a flow resistance testing device for a wind power generation liquid cooling pipeline system, including a testing box 1. The testing box 1 is equipped with a water storage tank 2, a water pump 14, a temperature regulating mechanism 11 and a drying treatment mechanism 13. The temperature regulating mechanism 11 is used to regulate the temperature of the water used for flow resistance testing.

[0038] A storage box 5 is fixedly connected to the outer wall of the test box 1. An output pipe 15 is fixedly connected to the output end of the water pump 14. An inlet pipe 6 is fixedly connected to the port of the output pipe 15. A return pipe 16 is fixedly connected to the right side wall of the water storage tank 2. An outlet pipe 7 is fixedly connected to the end of the return pipe 16 away from the water storage tank 2. A connecting mechanism 8 is provided on the right side of both the outlet pipe 7 and the inlet pipe 6. Both the outlet pipe 7 and the inlet pipe 6 are connected to the pipeline system to be tested through the connecting mechanism 8.

[0039] An inlet pressure sensor 9 is installed on the inlet pipe 6, and an outlet pressure sensor 10 is installed on the outlet pipe 7. During the test, the inlet pressure sensor 9 and the outlet pressure sensor 10 on the inlet pipe 6 and the outlet pipe 7 are used to detect the pressure before and after the liquid cooling pipeline system, and then the flow resistance is calculated. The monitoring data is displayed on the display screen. When the device is not in use, the inlet pipe 6, the outlet pipe 7 and the two connecting mechanisms 8 are placed in the storage box 5.

[0040] The temperature control mechanism 11 includes an evaporative cooling outer box 1103, a compressor 1104, a condensing heating outer box 1105, and a secondary heating box 1115, which are fixedly installed inside the detection box 1. An evaporative heat absorption tube 1107 is installed inside the evaporative cooling outer box 1103, and a condensing heat dissipation tube 1108 is installed inside the condensing heating outer box 1105. Both the evaporative heat absorption tube 1107 and the condensing heat dissipation tube 1108 are S-shaped.

[0041] The input end of the condenser heat dissipation tube 1108 is connected to the output end of the compressor 1104. The output end of the condenser heat dissipation tube 1108 is connected to the refrigerant connecting pipe 1106. The end of the refrigerant connecting pipe 1106 away from the condenser heat dissipation tube 1108 is connected to the input end of the evaporator heat absorption tube 1107. The output end of the evaporator heat absorption tube 1107 is connected to the input end of the compressor 1104.

[0042] When it is necessary to introduce cold water for flow resistance testing in cold water condition, only the pumping solenoid valve 1102, the main water valve 1112, and the output solenoid valve 17 need to be opened, while other valves are closed. The compressor 1104 is turned on, and the water pump 14 is used to pump water. The water in the storage tank 2 is introduced into the evaporative cooling outer box 1103 through the pumping pipe 1101. The refrigerant absorbs heat when passing through the evaporative heat absorption pipe 1107, thereby cooling the water introduced into the evaporative cooling outer box 1103. The cooled water enters the liquid cooling pipeline system through the inlet pipe 6, the water pump 14, the output pipe 15, and the inlet pipe 6. After circulating in the liquid cooling pipeline system, it flows back into the storage tank 2 through the outlet pipe 7 and the return water pipe 16.

[0043] A water pumping pipe 1101 is fixedly connected to the lower end of the evaporative cooling outer box 1103. The lower end of the water pumping pipe 1101 passes through the upper side wall of the water storage tank 2 and extends to the bottom of the water storage tank 2. An input pipe 1111 is fixedly connected to the upper end of the side wall of the evaporative cooling outer box 1103. The end of the input pipe 1111 away from the evaporative cooling outer box 1103 is connected to the input end of the water pump 14. A water pumping solenoid valve 1102 is installed on the water pumping pipe 1101, and a main water valve 1112 is installed on the input pipe 1111.

[0044] A heating water inlet pipe 1109 is fixedly connected to the water pumping pipe 1101. A heating solenoid valve 1110 is installed on the heating water inlet pipe 1109. A pumping solenoid valve 1102 is located on the side of the connection between the water pumping pipe 1101 and the heating water inlet pipe 1109, near the evaporative cooling outer box 1103. The end of the heating water inlet pipe 1109 away from the water pumping pipe 1101 is fixedly connected to the lower end of the condensing heating outer box 1105. A secondary heating pipe 1113 is fixedly connected to the right side of the condensing heating outer box 1105. A solenoid valve 1113 is installed on the secondary heating pipe 1113. Thermo-electromagnetic valve 1114, the right end of secondary heating pipe 1113 is connected to secondary heating box 1115, electric heating plate 1118 is installed inside secondary heating box 1115, high temperature water pipe 1116 is fixedly connected to the right end of secondary heating box 1115, the end of high temperature water pipe 1116 away from secondary heating box 1115 is connected to input pipe 1111, high temperature water solenoid valve 1117 is installed on high temperature water pipe 1116, the connection between high temperature water pipe 1116 and input pipe 1111 is located between main water valve 1112 and water pump 14;

[0045] When high-temperature water testing is required, open heating solenoid valve 1110, heating solenoid valve 2114, high-temperature water solenoid valve 1117, and output solenoid valve 17, while closing other valves. Turn on compressor 1104 and use water pump 14 to pump water. Room temperature water enters the condensing and heating outer chamber 1105 through water pumping pipe 1101 and heating inlet pipe 1109. In the condensing and heating outer chamber 1105, the room temperature water is heated by the heat released from the liquefaction of gaseous coolant. The heated water then enters the liquid cooling pipeline system through secondary heating pipe 1113, secondary heating chamber 1115, inlet pipe 1111, water pump 14, output pipe 15, and inlet pipe 6. When it is necessary to increase the temperature of the experimental water, simply turn on electric heating plate 1118 for secondary heating.

[0046] The drying processing unit 13 includes a blower 1301 and a hot air duct 1304. The output end of the blower 1301 is fixedly connected to a cold air duct 1302. A cold air valve 1303 is provided on the cold air duct 1302. A hot air valve 1305 is provided on the hot air duct 1304. The end of the cold air duct 1302 away from the blower 1301 is connected to a secondary heating pipe 1113. The hot air duct 1304 is connected to a high-temperature water pipe 1116. The end of the hot air duct 1304 away from the high-temperature water pipe 1116 is connected to an output pipe 15. An output solenoid valve 17 is provided on the output pipe 15. The connection between the hot air duct 1304 and the output pipe 15 is located on the side of the output solenoid valve 17 away from the water pump 14.

[0047] When it is necessary to clean water stains inside the product, open the cold air valve 1303 and the hot air valve 1305, close the other valves, and use the blower 1301 to introduce cold air into the secondary heating box 1115. The residual heat in the secondary heating box 1115 is used to heat the drying air, and then it is introduced into the liquid cooling pipeline system to be tested through the inlet pipe 6 and the output end. This achieves automatic purging of residual water in the pipeline after testing, avoiding the impact of residual liquid in the liquid cooling pipeline system on the subsequent use of the equipment.

[0048] Example 2:

[0049] Please see Figure 9 - Figure 13 As shown, based on Embodiment 1, the present invention provides a technical solution: the connecting mechanism 8 includes a connecting plate 801, a rod 806 is provided on the left side of the connecting plate 801, a connecting internal gear ring 805 is rotatably connected to the left end of the connecting plate 801, a driven gear 807 is threadedly connected to the rod 806, the right end of the driven gear 807 is rotatably connected to the left end of the connecting plate 801, the external teeth of the driven gear 807 mesh with the internal teeth of the connecting internal gear ring 805, a receiving groove 808 is provided on the side wall of the rod 806, a baffle 809 is provided in the receiving groove 808, and the two connecting plates 801 are respectively connected to the right end of the inlet tube 6 and the right end of the outlet tube 7. The sides are connected, and the distance between the inner walls of the left and right sides of the storage groove 808 is greater than the depth of the storage groove 808. The front and rear side walls of the baffle 809 are rotatably connected to the front and rear side inner walls of the storage groove 808, respectively. A connecting groove 810 is opened at the lower end of the baffle 809. A support spring 811 is fixedly connected to the inner side wall of the connecting groove 810. The end of the support spring 811 away from the connecting groove 810 is fixedly connected to the lower inner wall of the storage groove 808. The driven gear 807 is driven to rotate by the cooperation of the connecting internal gear ring 805 and the driven gear 807. Then, the movement of the insertion rod 806 in the left and right directions is realized by the cooperation of the driven gear 807 and the insertion rod 806.

[0050] A tube 802 is fixedly connected to the right end of the connecting plate 801. A connecting hole is provided in the middle of the connecting plate 801. The two tubes 802 are connected to the inlet tube 6 and the outlet tube 7 through the connecting hole, respectively. A sealing gasket 804 is provided on the right end of the connecting plate 801. The right end of the insert rod 806 passes through the connecting plate 801 and the sealing gasket 804 in sequence and extends to the right side of the sealing gasket 804. The insert rod 806 and the connecting plate 801 are slidably connected through a limiting slide. A sealing ring 803 is provided on the outer wall of the tube 802. The outer diameter of the right end of the sealing ring 803 is smaller than the outer diameter of the left end of the sealing ring 803. The sealing ring 803 and the sealing gasket 804 are used to ensure the sealing at the connection.

[0051] Two stabilizing plates 18 are provided on the inner side of the water storage tank 2. Each of the two stabilizing plates 18 has several water passage holes 19. The two stabilizing plates 18 divide the water storage tank 2 into three cavities. The water passage holes 19 ensure the connection between the three cavities. At the same time, the two stabilizing plates 18 ensure the stability of the water surface in the middle cavity, thereby ensuring the accuracy of the ultrasonic liquid level detection sensor 3. The ultrasonic liquid level detection sensor 3 is provided on the upper inner wall of the water storage tank 2. The ultrasonic liquid level detection sensor 3 is located inside the middle cavity. A filter screen 4 is provided on the inner side of the water storage tank 2. The connection between the return water pipe 16 and the water storage tank 2 is located above the filter screen 4. The filter screen 4 can filter impurities carried in during the circulation of the circulating detection water.

[0052] Working principle: In use, the connecting mechanism 8 on the inlet pipe 6 is connected to the liquid cooling pipeline connecting flange 12 at the input end of the liquid cooling pipeline system, and the connecting mechanism 8 on the outlet pipe 7 is connected to the liquid cooling pipeline connecting flange 12 at the output end of the liquid cooling pipeline system. During connection, the right end of the insertion rod 806 passes through the connecting hole on the liquid cooling pipeline connecting flange 12, and the right end of the insertion tube 802 is inserted into the liquid cooling pipeline connecting flange 12. After the receiving groove 808 moves to the right end of the liquid cooling pipeline connecting flange 12, the baffle 809 pops out under the action of the supporting spring 811. Then, the connecting internal gear ring 805 is rotated, and through the engagement of the connecting internal gear ring 805 and the driven gear 807, the driven gear 807 is driven. 07 rotates, and as the driven gear 807 rotates, the insertion rod 806 moves away from the end of the liquid cooling pipeline connection flange 12. This, in turn, utilizes the cooperation of the baffle 809 and the connecting plate 801 to ensure a tight fit between the liquid cooling pipeline connection flange 12 and the sealing gasket 804 on the right side of the connecting plate 801. Simultaneously, the sealing ring 803 ensures a seal at the connection. When it is necessary to introduce cold water for a flow resistance test in cold water mode, only the pumping solenoid valve 1102, the main water valve 1112, and the output solenoid valve 17 need to be opened, while other valves are closed. The compressor 1104 is turned on, and the water pump 14 is used to pump water. Water in the storage tank 2 is introduced from the pumping pipe 1101 into the evaporative cooling outer casing 1103, utilizing the control... The refrigerant absorbs heat as it passes through the evaporation heat absorption pipe 1107, thereby cooling the water introduced into the evaporative cooling outer chamber 1103. The cooled water then flows through the inlet pipe 6, the water pump 14, the outlet pipe 15, and the inlet pipe 6 into the liquid cooling pipeline system. After circulating in the liquid cooling pipeline system, it flows back into the water storage tank 2 through the outlet pipe 7 and the return water pipe 16. When a high-temperature water test is required, the heating solenoid valve 1110, the heating solenoid valve 2 1114, the high-temperature water solenoid valve 1117, and the output solenoid valve 17 are opened, while other valves are closed. The compressor 1104 is turned on, and the water pump 14 is used to pump water. Room temperature water enters the condenser from the water inlet pipe 1101 and the heating inlet pipe 1109. In the condensation and heating chamber 1105, room temperature water is heated by the heat released from the liquefaction of gaseous coolant. The heated water then passes through the secondary heating pipe 1113, the secondary heating chamber 1115, the input pipe 1111, the water pump 14, the output pipe 15, and the inlet pipe 6 before entering the liquid cooling pipeline system. When it is necessary to increase the temperature of the experimental water, the electric heating plate 1118 can be turned on for secondary heating. During the test, the inlet pressure detection sensor 9 and the outlet pressure detection sensor 10 on the inlet pipe 6 and the outlet pipe 7 respectively detect the pressure before and after the liquid cooling pipeline system, which facilitates the calculation of flow resistance. At the same time, the monitoring data is displayed on the display screen.After testing, the test water in the liquid-cooled piping system is cleaned. During cleaning, the cold air valve 1303 and hot air valve 1305 are opened, while other valves are closed. Cold air is introduced into the secondary heating chamber 1115 using the blower 1301. The residual heat in the secondary heating chamber 1115 heats the drying air, which is then introduced into the liquid-cooled piping system to be tested through the inlet pipe 6 and the outlet end. This automatically purges residual water from the piping after testing, preventing residual liquid in the liquid-cooled piping system from affecting the subsequent use of the equipment. For disassembly, the baffle 809 is manually pressed into the receiving slot 808, and the connecting internal gear ring 805 is rotated. When the left end of the baffle 809 moves to the inside of the connecting hole on the liquid-cooled piping connecting flange 12, the liquid-cooled piping connecting flange 12 can be removed for testing the next product.

[0053] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A flow resistance testing device for a wind power generation liquid cooling pipeline system, comprising a testing box (1), characterized in that: The inside of the test box (1) is equipped with a water storage tank (2), a water pump (14), a temperature regulation mechanism (11) and a drying treatment mechanism (13). The temperature regulation mechanism (11) is used to regulate the temperature of the water used for flow resistance testing. The outer wall of the test box (1) is fixedly connected to a storage box (5), the output end of the water pump (14) is fixedly connected to an output pipe (15), the port of the output pipe (15) is fixedly connected to an inlet pipe (6), the right side wall of the water storage tank (2) is fixedly connected to a return pipe (16), the end of the return pipe (16) away from the water storage tank (2) is fixedly connected to an outlet pipe (7), the right side ends of the outlet pipe (7) and the inlet pipe (6) are both provided with a connecting mechanism (8), and the outlet pipe (7) and the inlet pipe (6) are both connected to the pipeline system to be tested through the connecting mechanism (8); The connecting mechanism (8) includes a connecting plate (801), a plug rod (806) is provided on the left side of the connecting plate (801), a connecting internal gear ring (805) is rotatably connected to the left end of the connecting plate (801), a driven gear (807) is threadedly connected to the plug rod (806), the right end of the driven gear (807) is rotatably connected to the left end of the connecting plate (801), the external teeth of the driven gear (807) mesh with the internal teeth of the connecting internal gear ring (805), a storage groove (808) is provided on the side wall of the plug rod (806), and a baffle (809) is provided in the storage groove (808). The two connecting plates (801) are respectively connected to the right end of the inlet tube (6) and the right end of the outlet tube (7). The distance between the inner walls of the left and right sides of the receiving groove (808) is greater than the depth of the receiving groove (808). The front and rear sides of the baffle (809) are rotatably connected to the inner walls of the front and rear sides of the receiving groove (808). A connecting groove (810) is provided at the lower end of the baffle (809). A support spring (811) is fixedly connected to the inner wall of the connecting groove (810). The end of the support spring (811) away from the connecting groove (810) is fixedly connected to the lower inner wall of the receiving groove (808).

2. The flow resistance detection device for a wind power generation liquid cooling pipeline system according to claim 1, characterized in that: The temperature regulation mechanism (11) includes an evaporative cooling outer box (1103), a compressor (1104), a condensing heating outer box (1105), and a secondary heating box (1115) fixedly installed inside the detection box (1). An evaporative heat absorption tube (1107) is provided inside the evaporative cooling outer box (1103), and a condensing heat dissipation tube (1108) is provided inside the condensing heating outer box (1105). Both the evaporative heat absorption tube (1107) and the condensing heat dissipation tube (1108) are S-shaped.

3. The flow resistance detection device for a wind power generation liquid cooling pipeline system according to claim 2, characterized in that: The input end of the condenser heat dissipation pipe (1108) is connected to the output end of the compressor (1104). The output end of the condenser heat dissipation pipe (1108) is connected to the refrigerator connecting pipe (1106). The end of the refrigerator connecting pipe (1106) away from the condenser heat dissipation pipe (1108) is connected to the input end of the evaporator heat absorption pipe (1107). The output end of the evaporator heat absorption pipe (1107) is connected to the input end of the compressor (1104).

4. The flow resistance detection device for a wind power generation liquid cooling pipeline system according to claim 3, characterized in that: The lower end of the evaporative cooling outer box (1103) is fixedly connected to a water pumping pipe (1101). The lower end of the water pumping pipe (1101) passes through the upper side wall of the water storage tank (2) and extends to the bottom of the water storage tank (2). The upper end of the side wall of the evaporative cooling outer box (1103) is fixedly connected to an input pipe (1111). The end of the input pipe (1111) away from the evaporative cooling outer box (1103) is connected to the input end of the water pump (14). A water pumping solenoid valve (1102) is provided on the water pumping pipe (1101), and a water guide main valve (1112) is provided on the input pipe (1111).

5. The flow resistance detection device for a wind power generation liquid cooling pipeline system according to claim 4, characterized in that: A heating water inlet pipe (1109) is fixedly connected to the water pumping pipe (1101). A heating solenoid valve (1110) is installed on the heating water inlet pipe (1109). The water pumping solenoid valve (1102) is located on the side of the connection between the water pumping pipe (1101) and the heating water inlet pipe (1109) near the evaporative cooling outer box (1103). The end of the heating water inlet pipe (1109) away from the water pumping pipe (1101) is fixedly connected to the lower end of the condensing heating outer box (1105). The right side of the condensing heating outer box (1105) is... A secondary heating tube (1113) is fixedly connected to the end of the secondary heating tube (1113). The right end of the secondary heating tube (1113) is connected to the secondary heating box (1115). An electric heating plate (1118) is installed inside the secondary heating box (1115). A high-temperature water pipe (1116) is fixedly connected to the right end of the secondary heating box (1115). The end of the high-temperature water pipe (1116) away from the secondary heating box (1115) is connected to the input pipe (1111). A high-temperature water solenoid valve (1117) is installed on the high-temperature water pipe (1116).

6. The flow resistance detection device for a wind power generation liquid cooling pipeline system according to claim 1, characterized in that: The right end of the connecting plate (801) is fixedly connected to the insertion tube (802). A connecting hole is provided in the middle of the connecting plate (801). The two insertion tubes (802) are connected to the inlet tube (6) and the outlet tube (7) respectively through the connecting hole. A sealing gasket (804) is provided on the right end of the connecting plate (801). The right end of the insertion rod (806) passes through the connecting plate (801) and the sealing gasket (804) in sequence and extends to the right side of the sealing gasket (804). The insertion rod (806) and the connecting plate (801) are slidably connected through a limiting slide. A sealing ring (803) is provided on the outer wall of the insertion tube (802). The outer diameter of the right end of the sealing ring (803) is smaller than the outer diameter of the left end of the sealing ring (803).

7. The flow resistance detection device for a wind power generation liquid cooling pipeline system according to claim 1, characterized in that: The drying processing mechanism (13) includes a blower (1301) and a hot air pipe (1304). The output end of the blower (1301) is fixedly connected to a cold air pipe (1302). The end of the cold air pipe (1302) away from the blower (1301) is connected to a secondary heating pipe (1113). The hot air pipe (1304) is connected to a high-temperature water pipe (1116). The end of the hot air pipe (1304) away from the high-temperature water pipe (1116) is connected to an output pipe (15). An output solenoid valve (17) is provided on the output pipe (15).

8. The flow resistance detection device for a wind power generation liquid cooling pipeline system according to claim 1, characterized in that: The inlet tube (6) is equipped with an inlet pressure detection sensor (9), and the outlet tube (7) is equipped with an outlet pressure detection sensor (10).

9. The flow resistance detection device for a wind power generation liquid cooling pipeline system according to claim 1, characterized in that: The water storage tank (2) has two stabilizing plates (18) on its inner side. Each of the two stabilizing plates (18) has several water passage holes (19). The two stabilizing plates (18) divide the water storage tank (2) into three cavities. An ultrasonic liquid level detection sensor (3) is provided on the upper inner wall of the water storage tank (2). The ultrasonic liquid level detection sensor (3) is located inside the middle cavity. A filter screen (4) is provided inside the water storage tank (2). The connection between the return water pipe (16) and the water storage tank (2) is located above the filter screen (4).

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