Testing device

Abstract

The utility model discloses a testing device, and belongs to the field of testing. The testing device comprises a cooling loop and a detection component, the cooling loop comprises a liquid storage component, a first connecting component, a power component and a heat exchange component, and the first connecting component is communicated among the liquid storage component, the power component and the heat exchange component; the power part is configured to drive the cooling liquid in the liquid storage part to circularly flow in the cooling loop; the detection component comprises a test tank arranged in the cooling loop, the test tank comprises a tank body and a plurality of metal hanging pieces arranged in the tank body, each metal hanging piece is detachably connected with the tank body, cooling liquid can enter the tank body and flow out of the tank body through the metal hanging pieces, namely, the cooling liquid can make contact with the metal hanging pieces, and the metal hanging pieces are arranged in the tank body. Therefore, the corrosivity of the cooling liquid can be quantitatively tested through the plurality of metal hanging pieces.

Description

Technical Field

[0001] The present application relates to the field of testing, and in particular to a testing device. Background Art

[0002] As a green and clean energy, wind energy has developed rapidly in recent years. When wind turbines are working, they will generate a lot of heat, so a cooling system is needed to cool them. The common cooling system is based on coolant cooling.

[0003] The coolant may corrode during the circulation process, causing fixed precipitation in the cooling system, resulting in blockage of the filter element at the inlet of the circulation pump, which in turn causes the unit to shut down and seriously affects the power generation. Therefore, it is of great significance to quantitatively test the corrosiveness of the coolant. Utility Model Content

[0004] An embodiment of the present application provides a testing device that can quantitatively test the corrosiveness of coolant in a cooling system.

[0005] In a first aspect, an embodiment of the present application provides a testing device, comprising:

[0006] A cooling circuit, comprising a liquid storage component, a first connecting component, a power component and a heat exchange component, wherein the first connecting component is connected between the liquid storage component, the power component and the heat exchange component, and the power component is configured to drive the coolant in the liquid storage component to circulate in the cooling circuit;

[0007] The detection component includes a test tank arranged in a cooling circuit, the test tank includes a tank body and a plurality of metal hanging plates arranged in the tank body, each metal hanging plate is detachably connected to the tank body, and the coolant can enter the tank body and flow out of the tank body through the plurality of metal hanging plates.

[0008] In an embodiment of the present application, the testing device includes a cooling circuit and a detection component, wherein the cooling circuit includes a liquid storage component, a first connecting component, a power component and a heat exchange component, the first connecting component is connected between the liquid storage component, the power component and the heat exchange component, and the power component is configured to drive the coolant in the liquid storage component to circulate in the cooling circuit; the detection component includes a test tank arranged in the cooling circuit, the test tank includes a tank body and a plurality of metal hanging plates arranged in the tank body, each metal hanging plate is detachably connected to the tank body, the coolant can enter the tank body and flow out of the tank body through the plurality of metal hanging plates, that is, the coolant can contact the plurality of metal hanging plates, so the corrosiveness of the coolant can be quantitatively tested through the plurality of metal hanging plates. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] In order to more clearly illustrate the technical solution of the embodiments of the present application, the following is a brief introduction to the drawings required for use in the embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0010] Figure 1 A schematic diagram of the structure of a testing device provided in an embodiment of the present application;

[0011] Figure 2 A schematic diagram of the structure of a test tank provided in an embodiment of the present application;

[0012] Figure 3 A schematic diagram of the structure of another testing device provided in an embodiment of the present application;

[0013] Figure 4 A schematic diagram of the structure of another testing device provided in an embodiment of the present application;

[0014] Figure 5 A schematic diagram of the structure of a heating circuit of a test device provided in an embodiment of the present application;

[0015] Figure 6 A schematic diagram of the connection relationship of some components of a testing device during an actual test provided in an embodiment of the present application. DETAILED DESCRIPTION

[0016] The features and exemplary embodiments of various aspects of the present application will be described in detail below. In order to make the purpose, technical solutions and advantages of the present application clearer, the present application will be further described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described herein are only intended to explain the present application, rather than to limit the present application. For those skilled in the art, the present application can be implemented without the need for some of these specific details. The following description of the embodiments is only to provide a better understanding of the present application by illustrating the examples of the present application.

[0017] As a green and clean energy, wind energy has developed rapidly in recent years. When wind turbines are working, they will generate a lot of heat, so a cooling system is needed to cool them. The common cooling system is based on coolant cooling.

[0018] The coolant may corrode during the circulation process, causing fixed precipitation in the cooling system, resulting in blockage of the filter element at the inlet of the circulation pump, which in turn causes the unit to shut down and seriously affects the power generation. Therefore, it is of great significance to quantitatively test the corrosiveness of the coolant.

[0019] The test device provided in the present application includes a cooling circuit and a detection component, wherein the cooling circuit includes a liquid storage component, a first connecting component, a power component and a heat exchange component, the first connecting component is connected between the liquid storage component, the power component and the heat exchange component, and the power component is configured to drive the coolant in the liquid storage component to circulate in the cooling circuit; the detection component includes a test tank arranged in the cooling circuit, the test tank includes a tank body and a plurality of metal hanging plates arranged in the tank body, each metal hanging plate is detachably connected to the tank body, the coolant can enter the tank body and flow out of the tank body through the plurality of metal hanging plates, that is, the coolant can contact the plurality of metal hanging plates, so the corrosiveness of the coolant can be quantitatively tested through the plurality of metal hanging plates.

[0020] The testing device provided in this application is introduced in detail below.

[0021] Figure 1 This is a schematic diagram of the structure of a test device provided in an embodiment of the present application, wherein arrows indicate the flow direction of the coolant. Figure 1 As shown, the testing device 10 may include a cooling circuit 101 and a detection component 102 .

[0022] The cooling circuit 101 is used to simulate the cooling circuit in the actual wind power system to cool the target cooling object. The target cooling object can be an object that generates a lot of heat. In the embodiment of the present application, the target cooling object can be used to simulate the gear box, generator, converter, etc. in the wind turbine generator set. The temperature of the target cooling object can be reduced by the cooling circuit 101 to prevent the target cooling object from being damaged due to excessive temperature.

[0023] For example, Figure 1 As shown, the cooling circuit 101 may include a liquid storage component 1010 , a first connecting component 1011 , a power component 1012 , and a heat exchange component 1013 .

[0024] The liquid storage component 1010 is used to store a coolant, and the coolant may be, for example, a liquid with ethylene glycol or propylene glycol as a main component, or other types of coolants, depending on actual conditions during specific implementation.

[0025] The first connecting component 1011 is connected to the liquid storage component 1010, the power component 1012 and the heat exchange component 1013, so that the liquid storage component 1010, the power component 1012 and the heat exchange component 1013 form a circulation loop. The first connecting component 1011 and the liquid storage component 1010, the power component 1012 and the heat exchange component 1013 are all detachably connected, so as to facilitate the replacement of the first connecting component 1011. Exemplarily, the first connecting component 1011 and the liquid storage component 1010, the power component 1012 and the heat exchange component 1013 can be connected by mechanical threads.

[0026] For example, the first connection component 1011 may be a metal tube or a rubber tube such as an EPDM tube. Of course, other forms of pipelines may also be used, which are not limited in the present embodiment.

[0027] The power component 1012 is used to drive the coolant in the liquid storage component 1010 to circulate in the cooling circuit 101. For example, the power component 1012 can drive the coolant to circulate in the cooling circuit 101 at a specified flow rate to achieve a smooth temperature reduction. Exemplarily, the power component 1012 can be a mechanical pump.

[0028] The heat exchange component 1013 is used to realize the exchange and transfer of heat energy of the coolant, and may include one or more heat exchange channels. When the heat exchange component 1013 includes multiple heat exchange channels, the multiple heat exchange channels may be connected in series or in parallel.

[0029] When multiple heat exchange channels are connected in series, that is, the coolant passes through the first heat exchange channel in sequence, and can continue to pass through the second heat exchange channel, and so on, until it passes through the last heat exchange channel. This method can increase the heat dissipation area of ​​the coolant and improve the heat dissipation efficiency of the coolant.

[0030] When multiple heat exchange channels are connected in parallel, the coolant can pass through one of the heat exchange channels, and different heat exchange channels can use different heat exchange media. For example, heat exchange channel C can use coolant as the heat exchange medium, and heat exchange channel D can use air as the heat exchange medium.

[0031] Exemplarily, the heat exchange component 1013 may include a heat exchanger and a radiator, and each of the heat exchanger and the radiator may include one or more. The material of the heat exchange component 1013 of the test device 10 in this embodiment may be the same as the material of the actual heat exchange component in the wind turbine generator set, so that the corrosiveness of the coolant in the actual wind turbine generator set can be accurately evaluated.

[0032] The detection component 102 is configured to detect the corrosiveness of the coolant. Figure 1 As shown, the detection component 102 may include a test tank 1021, which may be made of metal or non-metal. The test tank 1021 may include a tank body 1022 and a plurality of metal hanging pieces A disposed in the tank body 1022. Figure 1 Taking two metal hanging pieces A as an example, in actual application, there may be more metal hanging pieces A. The materials of the multiple metal hanging pieces A may be the same or different.

[0033] The tank body 1022 provides a special space for testing the coolant. During actual testing, the coolant can enter the tank body 1022 and flow out of the tank body 1022 through the plurality of metal hangers A. By comparing the weights of the front and rear metal hangers A, the corrosiveness of the coolant can be quantitatively tested.

[0034] In the embodiment of the present application, each metal hanger A is detachably connected to the tank body 1022, so that the metal hanger A can be flexibly replaced to meet testing requirements.

[0035] The test device 10 provided in the embodiment of the present application can simulate the process of coolant flowing through various components in an actual wind turbine generator set, and effectively evaluate the corrosiveness of the coolant by allowing the coolant to enter the tank body 1022 and flow out of the tank body 1022 through multiple metal hangers A. In addition, by comparing the weight of the metal hangers A before and after the test, the corrosiveness of the coolant can be quantitatively tested.

[0036] In some embodiments, Figure 2 As shown, the test tank 1021 also includes a support frame 1023 disposed in the tank body 1022, and multiple metal hanging pieces A are detachably connected to the tank body 1022 through the support frame 1023. At least one metal hanging piece A is movably disposed relative to the support frame 1023 to contact or separate from an adjacent metal hanging piece A.

[0037] Figure 2 Taking three metal hangers A as an example, for the convenience of description, the embodiment of the present application uses different identifiers to represent each metal hanger A, for example, A1, A2 and A3 can be used to represent different metal hangers.

[0038] In the embodiment of the present application, the metal hanger A1, the metal hanger A2 and the metal hanger A3 are detachably connected to the tank body 1022 through the support frame 1023, so that the metal hanger A1, the metal hanger A2 and the metal hanger A3 can be easily replaced. In addition, at least one of the metal hanger A1, the metal hanger A2 and the metal hanger A3 is movably arranged relative to the support frame 1023.

[0039] Taking the movable arrangement of the metal hanging piece A1 relative to the support frame 1023 as an example, by moving the metal hanging piece A1, the metal hanging piece A1 can be brought into contact with or separated from the metal hanging piece A2. When the metal hanging piece A1 is in contact with the metal hanging piece A2, the contact area between the metal hanging piece A1 and the metal hanging piece A2 can also be adjusted by moving the metal hanging piece A1.

[0040] In some embodiments, the metal hanging sheet A1, the metal hanging sheet A2 and the metal hanging sheet A3 may all be arranged to move relative to the support frame 1023. For example, in some scenarios, the metal hanging sheet A2 may be in contact with the metal hanging sheet A3, and the metal hanging sheet A2 may be separated from the metal hanging sheet A1; or, the metal hanging sheet A1 and the metal hanging sheet A3 may be in contact with the metal hanging sheet A2; or, the metal hanging sheet A1, the metal hanging sheet A3 and the metal hanging sheet A2 may be separated.

[0041] Among the multiple metal hangers A provided in the embodiment of the present application, at least one metal hanger A can be moved relative to the support frame 1023. By adjusting the metal hanger A that can move relative to the tank body 1022, it can be made to contact or separate from the adjacent metal hanger A, thereby testing the corrosiveness of the coolant in different scenarios.

[0042] In some embodiments, at least two of the multiple metal hangers, such as metal hanger A1, metal hanger A2, and metal hanger A3, may be made of different materials. For example, the materials of metal hanger A1 and metal hanger A2 may be different, or the materials of metal hanger A1 and metal hanger A3 may be different, or the materials of metal hanger A2 and metal hanger A3 may be different, or the materials of metal hanger A1, metal hanger A2, and metal hanger A3 may all be different. The metal hangers of different materials, such as metal hanger A1 and metal hanger A2, have the same contact area with the coolant. In this way, the corrosiveness of the coolant to the metal hangers of different materials can be tested.

[0043] For example, when two or more metal coupons A are made of the same material, the contact areas between the metal coupons A of the same material and the coolant may be the same or different. When the contact areas between the metal coupons A of the same material and the coolant are the same, multiple metal coupons A may be weighed and averaged to serve as the test result of the corrosiveness of the coolant to the metal coupons A of the same material. When the contact areas between the metal coupons A of the same material and the coolant are different, the corrosiveness of the coolant to the metal coupons A of the same material may be tested when the contact areas between the coolant and the metal coupons A are different.

[0044] Exemplarily, the plurality of metal hangers A may include at least two of copper hangers, tin hangers, steel hangers, cast iron hangers, aluminum hangers, and stainless steel hangers. For example, in some embodiments, the plurality of metal hangers A may include copper hangers and tin hangers, in some embodiments, the plurality of metal hangers A may include copper hangers, cast iron hangers, and aluminum hangers, and in some embodiments, the plurality of metal hangers A may include copper hangers, aluminum hangers, and stainless steel hangers. Of course, other combinations are also possible, and the embodiments of the present application are not specifically limited.

[0045] In the embodiment of the present application, metal hangers A of different materials are arranged in the test tank 1021, and the metal hangers A of different materials can be combined as needed, so that the corrosiveness of the same coolant to the metal hangers of different materials can be quantitatively tested.

[0046] In some embodiments, Figure 3 As shown, the detection component 102 may further include a test mirror 1024, which may be disposed on the first connecting component 1011 and detachably connected to the first connecting component 1011. The embodiment of the present application does not limit the specific position of the test mirror 1024, for example, it may be disposed at the outlet of the power component 1012, or between the heat exchange component 1013 and the liquid storage component 1010, or at any other position in the cooling circuit 101. The test mirror 1024 is configured to monitor the color change of the coolant in the cooling circuit 101.

[0047] For example, the coolant in the liquid storage component 1010 is a colorless and transparent liquid. If the coolant reacts with the metal hanger A, the color of the coolant may change, for example, from colorless to other colors. Therefore, the test mirror 1024 can be used to monitor whether the color of the coolant in the cooling circuit 101 changes, and then the corrosiveness of the coolant can be qualitatively tested.

[0048] In some embodiments, Figure 3 As shown, the detection component 102 may further include a filter element 1025. Exemplarily, the filter element 1025 may be located downstream of the power component 1012 and upstream of the heat exchange component 1013, that is, the filter element 1025 may be disposed between the outlet of the power component 1012 and the inlet of the heat exchange component 1013, and is respectively connected to the outlet of the power component 1012 and the inlet of the heat exchange component 1013 through the first connecting component 1011, so that the coolant can pass through the filter element 1025. Of course, the filter element 1025 may also be disposed at other positions, for example, it may be disposed downstream of the heat exchange component 1013 and upstream of the liquid storage component 1010, that is, disposed between the outlet of the heat exchange component 1013 and the inlet of the liquid storage component 1010.

[0049] The filter element 1025 is configured to filter impurities within the cooling circuit 101. The embodiment of the present application does not limit the specific structure of the filter element 1025. For example, it may include a skeleton, a filter layer, and a sealing ring, wherein the skeleton is a supporting structure of the filter element 1025 and may be made of different materials. The filter layer is used to filter impurities within the cooling circuit 101, and the sealing ring is used to seal the filter element 1025 to prevent leakage of coolant.

[0050] When the coolant reacts with the metal coupon A, impurities may be generated. Therefore, the filter element 1025 may be checked regularly to see if there are any impurities, thereby qualitatively testing the corrosiveness of the coolant to the metal coupon A.

[0051] In some embodiments, the heat exchange component 1013 may include a heat exchanger 1014 and a radiator 1015, wherein the heat exchanger 1014 and the radiator 1015 may each include one or more. Figure 4 Take a heat exchanger 1014 and a radiator 1015 as an example. The heat exchanger 1014 can simulate the heat exchanger in an actual wind turbine generator set, and the radiator 1015 can simulate the radiator in an actual wind turbine generator set, so that the corrosiveness of the coolant in a real scene can be effectively tested.

[0052] In some embodiments, the heat exchanger 1014 can be located downstream of the power component 1012 and upstream of the test tank 1021, that is, the heat exchanger 1014 can be set between the outlet of the power component 1012 and the inlet of the test tank 1021, and connected to the power component 1012 and the test tank 1021 through the first connecting component 1011 respectively, so that the coolant can flow through the heat exchanger 1014 to achieve heat dissipation.

[0053] In some embodiments, the radiator 1015 can be located downstream of the test tank 1021 and upstream of the heat exchanger 1014, that is, the radiator 1015 can be set at the outlet of the test tank 1021 and the inlet of the heat exchanger 1014, and connected to the test tank 1021 and the heat exchanger 1014 through the first connecting component 1011 respectively, so that the coolant flowing through the heat exchanger 1014 can continue to dissipate heat through the radiator 1015, further reducing the temperature of the coolant.

[0054] Figure 4 The above is only an example of a positional relationship between the heat exchanger 1014 and the radiator 1015 in the cooling circuit 101. In actual testing, there may be other positional relationships. For example, the heat exchanger 1014 and the radiator 1015 may exchange positions, or the heat exchanger 1014 may be arranged downstream of the liquid storage component 1010 and upstream of the power component 1012.

[0055] In some embodiments, the heat exchange component 1013 may include at least a first heat exchange channel and a second heat exchange channel, wherein the first heat exchange channel and the second heat exchange channel may be connected in series or in parallel.

[0056] For example, when the first heat exchange channel and the second heat exchange channel are connected in series, illustratively, after the coolant flows into the first heat exchange channel and flows out of the first heat exchange channel, it can continue to flow into the second heat exchange channel and flow out of the second heat exchange channel, and continue to flow through other components, thereby increasing the heat dissipation area of ​​the coolant and accelerating the heat dissipation.

[0057] When the first heat exchange channel and the second heat exchange channel are connected in parallel, one of the channels can be selected according to the test requirements to allow the coolant to flow through the channel. For example, the coolant can flow through the first heat exchange channel or the second heat exchange channel.

[0058] For example, when the first heat exchange channel and the second heat exchange channel are connected in parallel, the first heat exchange channel and the second heat exchange channel may also use different heat exchange media, for example, the first heat exchange channel may use coolant as the heat exchange medium, and the second heat exchange channel may use air as the heat exchange medium. During actual testing, a suitable heat exchange channel may be selected according to the type of cooling medium used by the cooling circuit 101.

[0059] In the embodiment of the present application, illustratively, the heat exchanger 1014 and the radiator 1015 may each include two heat exchange channels, wherein the heat exchange medium of the two heat exchange channels of the heat exchanger 1014 may both be coolant, and the heat exchange medium of the two heat exchange channels of the radiator 1015 may be air and coolant, respectively. In actual testing, the coolant may flow through one heat exchange channel of the radiator 1015 and two heat exchange channels of the heat exchanger 1014 to achieve effective heat dissipation.

[0060] The embodiment of the present application utilizes the heat exchanger 1014 and the radiator 1015 to simulate the heat exchanger and the radiator in actual working conditions, which can effectively test the corrosiveness of the coolant under actual working conditions. At the same time, the heat exchanger and the radiator include at least two heat exchange channels. During actual testing, the heat exchange channel through which the coolant flows can be flexibly selected, thereby testing the corrosiveness of the coolant in a variety of scenarios.

[0061] In some embodiments, Figure 5 As shown, the test device 10 may also include a heating circuit 103, and the heating circuit 103 may include a temperature control component 1031, a second connecting component 1032 and a third connecting component 1033, wherein the temperature control component 1031 is used to change the temperature of the coolant in the liquid storage component 1010, so that the temperature of the coolant flowing through the cooling circuit 101 can meet the test requirements.

[0062] Exemplarily, the outlet of the temperature control component 1031 can be connected to the inlet of the liquid storage component 1010 through the second connecting component 1032, and the outlet of the liquid storage component 1010 can be connected to the inlet of the temperature control component 1031 through the third connecting component 1033. Driven by the power component 1012, the heat source in the temperature control component 1031 can enter the liquid storage component 1010 from the outlet of the temperature control component 1031 through the second connecting component 1032, heat the coolant in the liquid storage component 1010, and then flow back to the temperature control component 1031 from the outlet of the liquid storage component 1010 through the third connecting component 1033, forming a heating circuit.

[0063] Exemplarily, the temperature control component 1031 may be composed of a heating component and a cooling component. For example, the temperature control component 1031 may be a dual-channel heat exchanger, in which one channel is a heating channel and the other channel is a cooling channel. The cooling liquid in the liquid storage component 1010 may be heated through the heating channel to increase the temperature of the cooling liquid; the cooling liquid in the liquid storage component 1010 may be cooled through the cooling channel to reduce the temperature of the cooling liquid, so as to meet the test requirements in different scenarios.

[0064] Exemplarily, the temperature control component 1031 may also be a temperature simulation device, which can simulate the temperature change of the target cooling object during operation, and change the temperature of the coolant based on the temperature change of the target cooling object. The temperature simulation device can, for example, simulate the temperature change of the gearbox, generator or converter in the wind turbine generator set during operation, and change the temperature of the coolant based on the temperature change of the gearbox, generator or converter.

[0065] The testing device 10 of the embodiment of the present application includes not only a cooling circuit 101, but also a heating circuit 103, that is, two circulation circuits. The temperature of the coolant in the cooling circuit 101 can be changed through the heating circuit 103, so that the corrosiveness of the coolant at different temperatures can be tested, making the test more comprehensive.

[0066] In some embodiments, a sampling port may also be provided at the bottom of the radiator 1015 to sample the coolant through the sampling port to detect whether there are impurities in the coolant, thereby testing the corrosiveness of the coolant.

[0067] In some embodiments, the cooling circuit 101 may also include components such as a thermometer, a pressure gauge, a flow meter, and a fluid replenishment component, wherein the thermometer is used to monitor the temperature of the coolant in the cooling circuit 101, the pressure gauge is used to monitor the pressure in the liquid storage component 1010, the flow meter is used to monitor the flow rate of the coolant, and the fluid replenishment component is used to replenish the coolant in the liquid storage component 1010 in real time, so that the coolant in the test tank 1021 can flow out of the tank body 1022 through multiple metal hanging plates A to meet the test requirements.

[0068] Figure 6 An exemplary schematic diagram of the connection relationship of some components of the test device 10 during actual testing is listed. Figure 6 The components are connected in sequence. Except for the detection component 102, the other components can simulate the materials and parameters of the corresponding components in the actual working conditions, so that the corrosiveness of the coolant in the actual working conditions can be accurately tested.

[0069] For example, the corrosiveness of the coolant can be tested when the temperature of the coolant is 75°C and the operating pressure of the coolant is 0.8 bar. When the operating pressure of the coolant changes by more than 5% but less than 10%, the state of the filter element 1025 can be checked. When the operating pressure of the coolant changes by more than 10%, the test is stopped. When the test is stopped or the test duration reaches a preset duration, the metal coupon can be removed and the corrosiveness of the coolant can be evaluated by the weight loss of the metal coupon.

[0070] In the embodiment of the present application, a metal hanger A is provided in the test tank 1021, and a filter element 1025 and a test mirror 1024 are provided in the cooling circuit 101. The metal hanger A may include a variety of materials, so that the corrosiveness of the coolant in different scenarios can be effectively tested, and the problem of the wind turbine being shut down and the power generation being affected due to the inlet of the power component 1012 being blocked under actual working conditions can be avoided.

[0071] It should be clear that the various embodiments in this specification are described in a progressive manner, and the same or similar parts between the various embodiments can be referred to each other, and each embodiment focuses on the differences from other embodiments. For the wind power generation system embodiment, the relevant parts can refer to the description part of the wind turbine generator set embodiment. The present application is not limited to the specific structure described above and shown in the figures. Those skilled in the art can make various changes, modifications and additions after understanding the spirit of the present application. In addition, for the sake of brevity, a detailed description of the known technology is omitted here.

[0072] Those skilled in the art should understand that the above embodiments are exemplary rather than restrictive. Different technical features appearing in different embodiments can be combined to achieve beneficial effects. Based on the study of the drawings, the specification and the claims, those skilled in the art should be able to understand and implement other variations of the disclosed embodiments. In the claims, the term "comprising" does not exclude other devices or steps; the quantifier "one" does not exclude multiple; the terms "first" and "second" are used to indicate names rather than to indicate any specific order. Any figure marks in the claims should not be understood as limiting the scope of protection. The functions of multiple parts appearing in the claims can be implemented by a single hardware or software module. The appearance of certain technical features in different dependent claims does not mean that these technical features cannot be combined to achieve beneficial effects.

Claims

1. A testing device, characterized in that: include: A cooling circuit, comprising a liquid storage component, a first connecting component, a power component and a heat exchange component, wherein the first connecting component is connected between the liquid storage component, the power component and the heat exchange component, and the power component is configured to drive the coolant in the liquid storage component to circulate in the cooling circuit; The detection component includes a test tank arranged in the cooling circuit, the test tank includes a tank body and a plurality of metal hanging plates arranged in the tank body, each of the metal hanging plates is detachably connected to the tank body, and the coolant can enter the tank body and flow out of the tank body through the plurality of metal hanging plates.

2. The testing device according to claim 1, characterized in that: The test tank also includes a support frame arranged in the tank body, and a plurality of metal hanging plates are detachably connected to the tank body through the support frame. At least one metal hanging plate is movably arranged relative to the support frame to contact or separate from an adjacent metal hanging plate.

3. The testing device according to claim 1, characterized in that: At least two of the plurality of metal hanging sheets are made of different materials, and the contact areas between the metal hanging sheets of different materials and the coolant are the same.

4. The testing device according to any one of claims 1 to 3, characterized in that: The plurality of metal hangers include at least two of copper hangers, tin hangers, steel hangers, cast iron hangers, aluminum hangers, and stainless steel hangers.

5. The testing device according to any one of claims 1 to 3, characterized in that: The detection component further includes a test mirror, which is disposed on the first connecting component and is configured to monitor a color change of the coolant in the cooling circuit.

6. The testing device according to any one of claims 1 to 3, characterized in that: The detection component also includes a filter element, which is located downstream of the power component and upstream of the heat exchange component, and is connected to the power component and the heat exchange component through the first connecting component respectively. The filter element is configured to filter impurities in the cooling circuit.

7. The testing device according to any one of claims 1 to 3, characterized in that: The heat exchange component includes a heat exchanger and a radiator; The heat exchanger is located downstream of the power component and upstream of the test tank, and is communicated with the power component and the test tank respectively through the first connecting component; The radiator is located downstream of the test tank and upstream of the heat exchanger, and is communicated with the test tank and the heat exchanger respectively through the first connecting component.

8. The testing device according to any one of claims 1 to 3, characterized in that: The heat exchange component includes at least a first heat exchange channel and a second heat exchange channel, and the first heat exchange channel and the second heat exchange channel are connected in series or in parallel.

9. The testing device according to any one of claims 1 to 3, characterized in that: The testing device also includes: The heating circuit includes a temperature control component, a second connecting component and a third connecting component, wherein the outlet of the temperature control component is connected to the inlet of the liquid storage component through the second connecting component, the outlet of the liquid storage component is connected to the inlet of the temperature control component through the third connecting component, and the temperature control component is configured to change the temperature of the coolant in the liquid storage component.

10. The testing device according to claim 9, characterized in that: The temperature control component includes a temperature simulation device, which is configured to simulate the temperature change of the target cooling object during operation and change the temperature of the coolant based on the temperature change of the target cooling object.

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