Wind power cooling liquid high and low temperature cycle testing machine

Abstract

The utility model provides a kind of wind power cooling liquid high-low temperature circulation test machine, it is related to wind power equipment test field, including test body;The inside of the test body is equipped with liquid storage tank, circulating pump is fixedly installed in the middle of the rear side wall of liquid storage tank, circulating pump penetrates test body, detection module is fixedly installed in the left side of circulating pump, heating controller is fixedly installed in the bottom of the front side wall of test body, refrigerating machine is symmetrically installed on the left and right side walls of liquid storage tank;The wind power cooling liquid high-low temperature circulation test machine utilizes the density, viscosity, heat conductivity coefficient sensor of circulating pump outlet, can obtain the multiple key performance parameters of cooling liquid in dynamic circulation process synchronously, reduce static detection deviation, to solve the problem that cycle condition matching is poor, static detection deviation is big, temperature regulation is not accurate, inconvenient operation, test result is not accurate and not comprehensive.

Description

Technical Field

[0001] This utility model relates to the field of wind power equipment testing technology, and in particular to a high and low temperature cycle testing machine for wind power coolant. Background Technology

[0002] In the wind power industry, the performance of coolant directly affects the operating efficiency and lifespan of wind turbines. With the continuous development of wind power technology, the environment in which wind turbines operate is becoming increasingly complex, placing higher demands on the stability, fluidity, and thermal conductivity of coolant under high and low temperature conditions. Existing coolant circulation testing machines have low matching degree between the cyclic operating conditions simulation and actual wind turbines, and cannot accurately reproduce the circulation state of different equipment. The testing methods are mostly static testing, which makes it difficult to simultaneously obtain multiple key parameters such as density, viscosity, and thermal conductivity during dynamic circulation, resulting in large testing deviations. Furthermore, the lack of a precise temperature feedback and control mechanism leads to insufficient accuracy of test results. Utility Model Content

[0003] This utility model relates to a high and low temperature cycle test machine for wind power coolant, in order to solve the problems mentioned in the background art, such as the low matching degree between the cycle conditions of existing coolant cycle test machines and actual equipment, the difficulty in simultaneously acquiring multiple parameters during static testing, large deviations, inaccurate temperature feedback control, and inconvenient operation, resulting in insufficient accuracy and comprehensiveness of test results.

[0004] This utility model provides a high and low temperature cycle testing machine for wind power coolant, specifically including: a testing machine body; a liquid storage tank is installed inside the testing machine body, a circulation pump is fixedly installed in the middle of the rear side wall of the liquid storage tank, the circulation pump runs through the testing machine body, a detection module is fixedly installed on the left side of the circulation pump, a heating controller is fixedly installed at the bottom of the front side wall of the testing machine body, and coolers are symmetrically installed on the left and right side walls of the liquid storage tank.

[0005] Furthermore, the bottom of the inner cavity of the test body is symmetrically provided with baffles, the top of the baffles is connected to the bottom of the liquid storage tank and forms an independent space, and the bottom of the heating controller is fixedly connected with an electric heating tube, which is evenly wound around the bottom of the liquid storage tank and located in the cavity formed between the two baffles of the test body.

[0006] Furthermore, an inlet pipe is fixedly connected to the top center of the left side wall of the liquid storage tank, an outlet pipe is fixedly connected to the bottom center of the right side wall of the liquid storage tank, a filling port is opened at the left center of the top end face of the liquid storage tank, a sealing plug is installed in the filling port, and a temperature sensor is fixedly installed at the center of the top end face of the liquid storage tank.

[0007] Furthermore, the cooler uses semiconductor cooling chips that are closely attached to the left and right outer walls of the liquid storage tank.

[0008] Furthermore, the circulation pipe fixedly connected to the inlet end of the circulation pump is connected to the outlet pipe of the storage tank, and the circulation pipe fixedly connected to the outlet end of the circulation pump is connected to the inlet pipe of the storage tank. A flow regulating valve is fixedly installed at the connection between the circulation pipe and the inlet pipe.

[0009] Furthermore, the detection module includes a density sensor, a viscosity sensor, and a thermal conductivity sensor, all of which are fixedly installed on the circulation pipe at the outlet of the circulation pump.

[0010] This utility model provides a high and low temperature cycling test machine for wind power coolant, which has the following features:

[0011] Beneficial effects:

[0012] 1. By creating independent spaces through baffles, heat loss from the electric heating element is reduced. Combined with the semiconductor cooling chip and electric heating element, rapid and uniform high and low temperature regulation of the coolant is achieved. The closed-loop circulation circuit and flow control valve accurately simulate the actual circulation conditions of different wind power equipment, improving the fit of the test conditions. On the other hand, by using density, viscosity, and thermal conductivity sensors at the outlet of the circulation pump, multiple key performance parameters of the coolant can be acquired simultaneously during the dynamic circulation process, reducing static detection deviations. Furthermore, the temperature sensor provides real-time temperature data feedback to accurately control the high and low temperature circulation state, comprehensively and accurately completing the performance test of the coolant in high and low temperature environments, providing a reliable basis for evaluating its applicability.

[0013] 2. This testing machine allows for convenient addition or replacement of coolant through the reservoir filling port. After starting the circulation pump to form a closed loop, it uses a heating controller and a cooler to achieve high and low temperature circulation regulation. The flow rate is adjusted using a flow regulating valve, allowing the detection module to simultaneously detect parameters such as the density, viscosity, and thermal conductivity of the coolant under dynamic flow conditions. The entire process is convenient to operate and can accurately match actual working conditions, ensuring the comprehensiveness and reference value of the test results. Attached Figure Description

[0014] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings of the embodiments will be briefly described below.

[0015] The accompanying drawings described below are only related to some embodiments of the present invention and are not intended to limit the scope of the present invention.

[0016] In the attached diagram:

[0017] Figure 1 This is a schematic diagram of the right front side axial view structure of this utility model;

[0018] Figure 2 This is a schematic diagram of the rear axial view structure of this utility model;

[0019] Figure 3 This is a schematic diagram of the cross-sectional structure of the test body of this utility model;

[0020] Figure 4 This is a top view of the structure of this utility model;

[0021] Figure 5 This is a schematic diagram of the longitudinal section of the test body of this utility model;

[0022] Figure 6 This is a cross-sectional structural diagram of the test body and liquid storage tank of this utility model.

[0023] In the diagram, the correspondence between component names and drawing numbers is as follows:

[0024] 1. Test body; 101. Baffle plate; 2. Liquid storage tank; 201. Liquid inlet pipe; 202. Liquid outlet pipe; 203. Filling port; 3. Heating controller; 301. Electric heating element; 4. Refrigerator; 5. Temperature sensor; 6. Circulation pump; 601. Circulation pipe; 602. Flow regulating valve; 7. Density sensor; 8. Viscosity sensor; 9. Thermal conductivity sensor. Detailed Implementation

[0025] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the described embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0026] Example 1: As shown in the attached document Figure 1 To be continued Figure 6 As shown:

[0027] This utility model provides a high and low temperature circulation test machine for wind power coolant, comprising: a test body 1, a liquid storage tank 2 installed inside the test body 1, a circulation pump 6 fixedly installed in the middle of the rear side wall of the liquid storage tank 2, the circulation pump 6 penetrating the test body 1, a detection module fixedly installed on the left side of the circulation pump 6, a heating controller 3 fixedly installed at the bottom of the front side wall of the test body 1, coolers 4 symmetrically installed on the left and right side walls of the liquid storage tank 2, baffles 101 symmetrically arranged at the bottom of the inner cavity of the test body 1, the top of the baffles 101 connected to the bottom of the liquid storage tank 2 and forming an independent space, and an electric heating tube 301 fixedly connected to the bottom of the heating controller 3, the electric heating tube 301 being evenly wound around the bottom of the liquid storage tank 2 and located between the two baffles 101 of the test body 1. In the cavity formed between 1, the cooler 4 uses a semiconductor cooling chip that is closely attached to the left and right outer walls of the liquid storage tank 2. Specifically, the independent space formed by the baffle plate 101 can reduce the influence of the external environment on the heating efficiency of the electric heating tube 301, reduce the heat loss to other areas of the test body 1, and improve the utilization rate of heating energy. The electric heating tube 301 is evenly wound around the bottom of the liquid storage tank 2, which can make the coolant in the liquid storage tank 2 heat more evenly and avoid abnormal coolant performance caused by local overheating. The semiconductor cooling chip is closely attached to the side wall of the liquid storage tank 2, which can improve the cooling efficiency by increasing the contact area. Moreover, the symmetrical installation on the left and right sides can realize the rapid and uniform cooling of the coolant. Together with the heating device, it forms a highly efficient high and low temperature cycle regulation system, which greatly improves the response speed and accuracy of temperature control.

[0028] The liquid storage tank 2 has an inlet pipe 201 fixedly connected to the top center of the left side wall, and an outlet pipe 202 fixedly connected to the bottom center of the right side wall. Both the inlet pipe 201 and the outlet pipe 202 penetrate the side wall of the test body 1. A filling port 203 is provided at the center of the left side of the top end face of the liquid storage tank 2, and a sealing plug is installed in the filling port 203. A temperature sensor 5 is fixedly installed at the center of the top end face of the liquid storage tank 2. Specifically, the positions of the inlet pipe 201 and the outlet pipe 202 are designed to cooperate with the circulation pipe 601 to form a smooth coolant circulation path. The filling port 203 facilitates quick addition or replacement of the coolant to be tested, avoiding local stagnation during circulation. The sealing plug effectively prevents coolant leakage due to evaporation or pressure changes during high and low temperature cycling, while also preventing external impurities from entering the reservoir 2 and contaminating the coolant, ensuring the purity of the test sample. The temperature sensor 5 is installed at the top center of the reservoir 2, which can monitor the overall temperature of the coolant in the tank in real time, reducing detection errors caused by local temperature differences, and providing accurate temperature feedback signals for adjusting the heating controller 3 and the cooler 4, ensuring temperature control accuracy.

[0029] The circulation pump 6 is fixedly connected to the inlet pipe 601 and the outlet pipe 202 of the storage tank 2. The circulation pump 6 is fixedly connected to the outlet pipe 601 and the inlet pipe 201 of the storage tank 2. A flow regulating valve 602 is fixedly installed at the connection between the circulation pipe 601 and the inlet pipe 201. Specifically, the circulation pump 6, the inlet pipe 201, and the outlet pipe 202 form a closed loop through the circulation pipe 601, which can drive the coolant to flow continuously between the storage tank 2 and the circulation pipe 601, simulating the actual circulation state of the coolant in wind power equipment. The flow regulating valve 602 is installed at the connection between the circulation pipe 601 and the inlet pipe 201, which can accurately regulate the flow rate of the coolant entering the storage tank 2, thereby flexibly controlling the flow rate of the entire circulation system. It can be specifically adjusted according to the coolant circulation speed requirements of different models of wind power equipment, making the test conditions more in line with the actual working conditions and improving the reference value of the test results.

[0030] The detection module includes a density sensor 7, a viscosity sensor 8, and a thermal conductivity sensor 9. These sensors are all fixedly installed on the circulation pipe 601 at the outlet of the circulation pump 6. Specifically, since the coolant in the circulation pipe 601 at the outlet of the circulation pump 6 is in a dynamic flow state, installing the sensors here allows for real-time detection of the coolant's performance parameters under these flowing conditions. This more closely approximates the actual working state of the coolant in wind power equipment, avoiding parameter deviations caused by static detection. The simultaneous operation of the density sensor 7, viscosity sensor 8, and thermal conductivity sensor 9 allows for the synchronous acquisition of multiple key performance indicators of the coolant during high and low temperature cycling, comprehensively reflecting the performance change patterns of the coolant. This provides multi-dimensional data support for evaluating the stability and applicability of the coolant, significantly improving the comprehensiveness and accuracy of the test results.

[0031] The specific usage and function of this embodiment are as follows:

[0032] When using this wind power coolant high and low temperature cycling test machine, first add the coolant to be tested through the filling port 203 of the storage tank 2 and cover it with the sealing plug. Start the circulation pump 6 to make the coolant circulate in the closed loop formed by the storage tank 2 and the circulation pipe 601. Adjust the temperature of the coolant in the storage tank 2 through the heating controller 3 and the cooler 4. Adjust the circulation flow rate using the flow regulating valve 602. At the same time, with the help of the density sensor 7, viscosity sensor 8 and thermal conductivity sensor 9 on the circulation pipe 601 at the outlet of the circulation pump 6, the performance parameters of the coolant under different temperature and flow rate conditions are detected in real time, thereby completing the high and low temperature cycling performance test of the coolant under simulated actual working conditions.

[0033] Example 2:

[0034] Aluminum heat sink fins are fixedly installed on the outside of the thermoelectric cooler 4. A ventilation gap is reserved between the heat sink fins and the rear side wall of the test body 1. A louvered ventilation opening is opened on the test body 1 at the position corresponding to the heat sink fins. When the thermoelectric cooler is working, it will generate reverse waste heat. The heat sink fins can expand the heat dissipation area and form a natural convection air channel with the ventilation openings to quickly remove the waste heat from the test body 1. This avoids the accumulation of waste heat, which will cause the internal ambient temperature of the test body 1 to rise. This reduces the heat loss of the cooler 4 and improves the cooling efficiency. It is especially suitable for long-term high-load high and low temperature cycle test scenarios.

Claims

1. A high and low temperature cycling test machine for wind power coolant, characterized in that, The test body (1) includes a liquid storage tank (2) installed inside the test body (1). A circulation pump (6) is fixedly installed in the middle of the rear side wall of the liquid storage tank (2). The circulation pump (6) passes through the test body (1). A detection module is fixedly installed on the left side of the circulation pump (6). A heating controller (3) is fixedly installed at the bottom of the front side wall of the test body (1). Coolers (4) are symmetrically installed on the left and right side walls of the liquid storage tank (2).

2. The high and low temperature cycling test machine for wind power coolant according to claim 1, characterized in that, The bottom of the inner cavity of the test body (1) is symmetrically provided with baffles (101). The top of the baffles (101) is connected to the bottom of the liquid storage tank (2) and forms an independent space. The bottom of the heating controller (3) is fixedly connected with an electric heating tube (301). The electric heating tube (301) is evenly wound around the bottom of the liquid storage tank (2) and located in the cavity formed between the two baffles (101) of the test body (1).

3. The high and low temperature cycling test machine for wind power coolant according to claim 1, characterized in that, An inlet pipe (201) is fixedly connected to the middle of the top of the left side wall of the liquid storage tank (2), an outlet pipe (202) is fixedly connected to the middle of the bottom of the right side wall of the liquid storage tank (2), a filling port (203) is opened at the middle of the left side of the top end face of the liquid storage tank (2), a sealing plug is installed in the filling port (203), and a temperature sensor (5) is fixedly installed at the middle of the top end face of the liquid storage tank (2).

4. The high and low temperature cycling test machine for wind power coolant according to claim 1, characterized in that, The cooler (4) uses a semiconductor cooling chip that is attached to the left and right outer walls of the liquid storage tank (2).

5. The high and low temperature cycling test machine for wind power coolant according to claim 1, characterized in that, The circulation pipe (601) fixedly connected to the inlet end of the circulation pump (6) is connected to the outlet pipe (202) of the storage tank (2), and the circulation pipe (601) fixedly connected to the outlet end of the circulation pump (6) is connected to the inlet pipe (201) of the storage tank (2). A flow regulating valve (602) is fixedly installed at the connection between the circulation pipe (601) and the inlet pipe (201).

6. The high and low temperature cycling test machine for wind power coolant according to claim 1, characterized in that, The detection module includes a density sensor (7), a viscosity sensor (8), and a thermal conductivity sensor (9). The density sensor (7), viscosity sensor (8), and thermal conductivity sensor (9) are all fixedly installed on the circulation pipe (601) at the outlet of the circulation pump (6).

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