Radiator sealing performance detection equipment

Abstract

The utility model provides a radiator sealing performance detection device. The radiator sealing performance detection device comprises an oil storage device, a heating device and an output device. A liquid heat dissipation medium is stored in the oil storage device; the heating device is communicated with the oil storage device, and the heating device is configured to extract a heat dissipation medium from the oil storage device, heat the extracted heat dissipation medium and convey the heated heat dissipation medium to the oil storage device; the output device is communicated with the oil storage device, and the output device is configured to convey at least part of the heat dissipation medium in the oil storage device to a radiator to be detected when the temperature of the heat dissipation medium in the oil storage device is within a target temperature range; and determining a result of sealing detection of the radiator according to whether the radiator leaks the radiating medium or not. According to the utility model, the detection result of the sealing detection of the radiator based on the radiator sealing detection equipment is more accurate.

Description

Technical Field

[0001] This application relates to the technical field of sealing detection equipment, and in particular to a radiator sealing detection equipment. Background Art

[0002] The sealing performance of a radiator is one of its important performances. A radiator sealing detection equipment can be used to detect the sealing performance of a radiator.

[0003] Currently, the radiator sealing detection equipment generally includes a storage tank and a conveying device. The storage tank stores a liquid heat dissipation medium for injection into the radiator, and the conveying device is connected between the radiator to be detected and the storage tank. When using the radiator sealing detection equipment to detect the sealing performance of a radiator, the liquid heat dissipation medium in the storage tank can be conveyed into the radiator through the conveying device until the total amount of the liquid heat dissipation medium in the radiator meets certain conditions. Then, the inside of the radiator is pressurized for a period of time, and it is observed whether the radiator leaks the liquid heat dissipation medium to obtain the sealing detection result.

[0004] However, during the actual process of using the radiator for heat dissipation, the temperature of the liquid heat dissipation medium in the radiator is generally relatively high. Based on this, when using the normal-temperature liquid heat dissipation medium in the storage tank to detect the sealing performance of the radiator, the temperature of the liquid heat dissipation medium in the radiator during the sealing detection of the radiator will differ significantly from the highest temperature of the liquid heat dissipation medium in the radiator during actual use of the radiator. Therefore, the detection result of using the current radiator sealing detection equipment to detect the sealing performance of the radiator is relatively inaccurate. Summary of the Utility Model

[0005] In order to solve the problem that the detection result of using the current radiator sealing detection equipment to detect the sealing performance of the radiator is relatively inaccurate, this application provides a radiator sealing detection equipment, which can make the detection result of detecting the sealing performance of the radiator based on this radiator sealing detection equipment more accurate.

[0006] In a first aspect, an embodiment of this application provides a radiator sealing detection equipment, including: an oil storage device, a heating device, and an output device; the oil storage device stores a liquid heat dissipation medium; the heating device is connected to the oil storage device, and the heating device is configured to extract the heat dissipation medium from the oil storage device, heat the extracted heat dissipation medium, and convey the heated heat dissipation medium to the oil storage device; the output device is connected to the oil storage device, and the output device is configured to convey at least part of the heat dissipation medium in the oil storage device to the radiator to be detected when the temperature of the heat dissipation medium in the oil storage device is within a target temperature range, so as to determine the result of the sealing detection of the radiator according to whether the radiator leaks the heat dissipation medium.

[0007] In a first possible implementation manner, in combination with the first aspect described above, the heating device includes a heat transfer oil tank, a heat exchanger, a first circulation assembly, and a second circulation assembly; the heat transfer oil tank stores heat transfer oil, a heater is arranged in the heat transfer oil tank, and the heater is configured to heat the heat transfer oil in the heat transfer oil tank; the first circulation assembly is connected between the oil storage device and the heat exchanger, and the first circulation assembly is configured to drive a heat dissipation medium to flow between the oil storage device and the heat exchanger; the second circulation assembly is connected between the heat transfer oil tank and the heat exchanger, and the second circulation assembly is configured to drive the heat transfer oil to flow between the heat transfer oil tank and the heat exchanger; the heat exchanger is configured to perform heat exchange on the heat transfer oil and the heat dissipation medium entering the heat exchanger, so as to heat the heat dissipation medium entering the heat exchanger.

[0008] In a second possible implementation manner, in combination with the first possible implementation manner described above, the first circulation assembly includes a first heat dissipation medium pipe, a heat dissipation medium circulation pump, a second heat dissipation medium pipe, and a third heat dissipation medium pipe; one end of the first heat dissipation medium pipe is connected to the oil storage device, and the other end of the first heat dissipation medium pipe is connected to the liquid inlet of the heat dissipation medium circulation pump; one end of the second heat dissipation medium pipe is connected to the liquid outlet of the heat dissipation medium circulation pump, and the other end of the second heat dissipation medium pipe is connected to the heat exchanger; one end of the third heat dissipation medium pipe is connected to the heat exchanger, and the other end of the third heat dissipation medium pipe is connected to the oil storage device.

[0009] In a third possible implementation manner, in combination with the first possible implementation manner described above, the second circulation assembly includes a first heat transfer oil pipe, a second heat transfer oil pipe, a heat transfer oil circulation pump, and a third heat transfer oil pipe; one end of the first heat transfer oil pipe is connected to the heat transfer oil tank, and the other end of the first heat transfer oil pipe is connected to the heat exchanger; one end of the second heat transfer oil pipe is connected to the heat exchanger, and the other end of the second heat transfer oil pipe is connected to the liquid inlet of the heat transfer oil circulation pump; one end of the third heat transfer oil pipe is connected to the liquid outlet of the heat transfer oil circulation pump, and the other end of the third heat transfer oil pipe is connected to the heat transfer oil tank.

[0010] In a fourth possible implementation manner, in combination with the first possible implementation manner described above, both the heat transfer oil tank and the heat exchanger are wrapped with a heat insulation layer formed by a material with a melting point higher than the maximum temperature within the target temperature range.

[0011] In a fifth possible implementation manner, in combination with the first aspect described above, the output device includes an output pipeline for transporting at least part of the heat dissipation medium in the oil storage device to a detachable radiator of a power transformer serving as a radiator to be detected.

[0012] In a sixth possible implementation manner, in combination with the first aspect or any possible implementation manner of the first aspect, the radiator sealing detection device further includes a gas supply device; the output device is further configured to stop delivering the heat dissipation medium to the radiator after the volume of the heat dissipation medium in the radiator is equal to the volume threshold; the gas supply device is in communication with the radiator, and the gas supply device is configured to deliver gas to the radiator after the output device stops outputting the heat dissipation medium to the radiator, so as to determine the result of the sealing detection of the radiator according to whether the radiator leaks the heat dissipation medium after pressurizing the heat dissipation medium in the radiator.

[0013] In a seventh possible implementation manner, in combination with the first aspect or any possible implementation manner of the first aspect, a temperature probe with a detection accuracy of ±0.5 degrees Celsius is provided in the oil storage device, so that the target temperature range is 124.5 degrees Celsius to 125.5 degrees Celsius.

[0014] In an eighth possible implementation manner, in combination with the first aspect or any possible implementation manner of the first aspect, the radiator sealing detection device further includes an observation stand, and the observation stand is connected to the radiator.

[0015] As can be seen from the above technical solutions, the radiator sealing detection device includes a heating device. When performing the sealing detection, the heating device can extract the heat dissipation medium from the oil storage device, heat the extracted heat dissipation medium, and then the heating device delivers the heated heat dissipation medium back to the oil storage device until the temperature of the heat dissipation medium in the oil storage device is within the target temperature range. Then, at least part of the heat dissipation medium in the oil storage device is delivered to the radiator to be detected. Next, the heat dissipation medium injected into the radiator can be pressurized so that the temperature and pressure of the heat dissipation medium in the radiator both reach the preset detection conditions. Then, observe whether the radiator leaks the heat dissipation medium for a period of time to obtain the sealing detection result. Thus, the heating device in the radiator sealing detection device can heat the heat dissipation medium in the oil storage device, and the conveying device can deliver the heat dissipation medium with a temperature within the target temperature range into the radiator. Compared with directly delivering the room-temperature heat dissipation medium into the radiator, the radiator sealing detection device in the embodiment of the present application injects the heat dissipation medium with a higher temperature into the radiator, thereby reducing the temperature difference between the temperature of the heat dissipation medium in the radiator during the sealing detection of the radiator and the highest temperature of the heat dissipation medium in the radiator during actual use of the radiator, that is, the working conditions during actual use can be simulated when detecting the radiator. Therefore, the detection result of the sealing detection of the radiator based on the radiator sealing detection device can be made more accurate. Description of the Drawings

[0016] Figure 1It is a schematic diagram of a radiator sealing detection device provided by an embodiment of the present application;

[0017] Figure 2 It is a schematic diagram of a heating device provided by an embodiment of the present application.

[0018] List of reference numerals:

[0019] Detailed implementation manners

[0020] To make the objectives, technical solutions and advantages of the present application clearer, the embodiments of the present application will be further described in detail below with reference to the accompanying drawings.

[0021] In the description of the present application, it should be understood that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the accompanying drawings. It is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present application.

[0022] As described above, the current radiator sealing detection device generally includes a storage tank and a conveying device. The storage tank stores a liquid heat dissipation medium for injection into the radiator, and the conveying device is connected between the radiator to be detected and the storage tank. When using the radiator sealing detection device to detect the sealing performance of the radiator, the liquid heat dissipation medium in the storage tank can be conveyed into the radiator through the conveying device until the total amount of the liquid heat dissipation medium in the radiator meets certain conditions. Then, the inside of the radiator is pressurized for a period of time, and it is observed whether there is leakage of the liquid heat dissipation medium in the radiator to obtain the sealing detection result. However, during the actual heat dissipation process of the radiator, the temperature of the liquid heat dissipation medium in the radiator is generally relatively high. Based on this, using the liquid heat dissipation medium at room temperature in the storage tank for the radiator sealing detection will result in a large difference between the temperature of the liquid heat dissipation medium in the radiator during the sealing detection of the radiator and the highest temperature of the liquid heat dissipation medium in the radiator during the actual use of the radiator. Therefore, the detection result of using the current radiator sealing detection device to detect the sealing performance of the radiator is relatively inaccurate.

[0023] In the embodiment of the present application, when using a radiator sealing detection device to detect the sealing performance of a radiator, first, a heating device can extract a heat dissipation medium from an oil storage device and heat the extracted heat dissipation medium. Then, the heating device conveys the heated heat dissipation medium back to the oil storage device until the temperature of the heat dissipation medium in the oil storage device is within the target temperature range. Next, at least part of the heat dissipation medium in the oil storage device is conveyed to the radiator to be detected. Subsequently, the heat dissipation medium injected into the radiator can be pressurized so that the temperature and pressure of the heat dissipation medium in the radiator both reach the preset detection conditions. After that, observe whether the radiator leaks the heat dissipation medium for a period of time to obtain the sealing detection result. Thus, the heating device in the radiator sealing detection device can heat the heat dissipation medium in the oil storage device, and the conveying device can convey the heat dissipation medium within the target temperature range into the radiator. Compared with directly conveying the room-temperature heat dissipation medium into the radiator, the radiator sealing detection device in the embodiment of the present application injects the heat dissipation medium with a higher temperature into the radiator, thereby reducing the temperature difference between the temperature of the heat dissipation medium in the radiator during the sealing detection of the radiator and the highest temperature of the heat dissipation medium in the radiator during actual use of the radiator, that is, the working conditions during actual use can be simulated during the detection of the radiator. Therefore, the detection result of the sealing performance of the radiator based on the radiator sealing detection device can be made more accurate.

[0024] The radiator sealing detection device provided by the embodiment of the present application will be described in detail below with reference to the accompanying drawings.

[0025] Figure 1 FIG. is a schematic diagram of a radiator sealing detection device provided by an embodiment of the present application. As Figure 1 shown, the radiator sealing detection device provided by the embodiment of the present application includes: an oil storage device 1, a heating device 2, and an output device 3; a liquid heat dissipation medium is stored in the oil storage device 1; the heating device 2 is connected to the oil storage device 1 and is configured to extract the heat dissipation medium from the oil storage device 1, heat the extracted heat dissipation medium, and convey the heated heat dissipation medium back to the oil storage device 1; the output device 3 is connected to the oil storage device 1 and is configured to convey at least part of the heat dissipation medium in the oil storage device 1 to the radiator 6 to be detected when the temperature of the heat dissipation medium in the oil storage device 1 is within the target temperature range, so as to determine the result of the sealing detection of the radiator 6 according to whether the radiator 6 leaks the heat dissipation medium.

[0026] Optionally, the specific type of the heat dissipation medium is related to the specific type of the radiator 6. In a specific embodiment, when the radiator 6 is a detachable radiator of a power transformer, the heat dissipation medium is transformer oil.

[0027] In an embodiment of the present application, when using a radiator sealing detection device to detect the sealing performance of a radiator 6, first, a heating device 2 can extract a heat dissipation medium from an oil storage device 1 and heat the extracted heat dissipation medium. Then, the heating device 2 conveys the heated heat dissipation medium back to the oil storage device 1 until the temperature of the heat dissipation medium in the oil storage device 1 is within a target temperature range. Next, at least a part of the heat dissipation medium in the oil storage device 1 is conveyed to the radiator 6 to be detected. Then, the heat dissipation medium injected into the radiator 6 can be pressurized so that the temperature and pressure of the heat dissipation medium in the radiator 6 both reach preset detection conditions. Then, observe whether the radiator 6 leaks the heat dissipation medium for a period of time, especially at positions such as the welds of the radiator 6, to obtain a sealing detection result. For example, if the leakage of the heat dissipation medium is observed during this period of time, it is determined that the sealing detection result is unqualified; if no leakage of the heat dissipation medium is observed during this period of time, it is determined that the sealing detection result is qualified. Thus, the heating device 2 in the radiator sealing detection device can heat the heat dissipation medium in the oil storage device 1, and the conveying device can convey the heat dissipation medium with a temperature within the target temperature range into the radiator 6. Compared with directly conveying the room-temperature heat dissipation medium into the radiator 6, the radiator sealing detection device in the embodiment of the present application injects a heat dissipation medium with a higher temperature into the radiator 6, thereby reducing the temperature difference between the temperature of the heat dissipation medium in the radiator 6 during the sealing detection of the radiator 6 and the highest temperature of the heat dissipation medium in the radiator 6 during actual use of the radiator 6, that is, the working conditions during actual use can be simulated when detecting the radiator 6. Therefore, the detection result of detecting the sealing performance of the radiator 6 based on the radiator sealing detection device can be made more accurate.

[0028] Further, the radiator sealing detection device heats the heat dissipation medium in the oil storage device 1 by extracting the heat dissipation medium from the oil storage device 1, heating it, and conveying the heated heat dissipation medium back to the oil storage device 1. This heating method has a high heating efficiency, can make the heating more uniform, and saves energy.

[0029] In addition, by setting the heating device 2, the heating range of the heat dissipation medium can be greatly increased, and the applicability of the radiator sealing detection device can be improved.

[0030] It should be noted that when observing whether the radiator 6 leaks the heat dissipation medium for a period of time, the duration of this period of time is usually greater than 1 hour, such as 2 hours or 3 hours, etc. The embodiment of the present application does not limit this.

[0031] Optionally, the oil storage device 1 can be a tank or a box, etc. The embodiment of the present application does not limit this.

[0032] Figure 2 is a schematic diagram of a heating device provided by an embodiment of the present application. AsFigure 1 and Figure 2 As shown in Figure 2 , the heating device 2 includes a heat transfer oil tank 21, a heat exchanger 22, a first circulation assembly 23 and a second circulation assembly 24; a heat transfer oil is stored in the heat transfer oil tank 21, and a heater (not shown in the figure) is provided in the heat transfer oil tank 21. The heater is configured to heat the heat transfer oil in the heat transfer oil tank 21; the first circulation assembly 23 is connected between the oil storage device 1 and the heat exchanger 22, and the first circulation assembly 23 is configured to drive the heat dissipation medium to flow between the oil storage device 1 and the heat exchanger 22; the second circulation assembly 24 is connected between the heat transfer oil tank 21 and the heat exchanger 22, and the second circulation assembly 24 is configured to drive the heat transfer oil to flow between the heat transfer oil tank 21 and the heat exchanger 22; the heat exchanger 22 is configured to exchange heat between the heat transfer oil and the heat dissipation medium entering the heat exchanger 22, so as to heat the heat dissipation medium entering the heat exchanger 22. Among them, the heat exchanger 22 can be a brazed heat exchanger 22 or the like to make the heat exchange efficiency as high as possible.

[0033] It should be noted that the flow channels of the heat transfer oil and the heat dissipation medium inside the heat exchanger 22 are not connected, so the heat transfer oil and the heat dissipation medium inside the heat exchanger 22 will not be mixed. The specific flow channels of the heat transfer oil and the heat dissipation medium inside the heat exchanger 22 in the embodiments of the present application are not limited.

[0034] In the embodiments of the present application, by driving the heat dissipation medium in the oil storage device 1 to flow between the oil storage device 1 and the heat exchanger 22 through the first circulation assembly 23, it can be realized that the heating device 2 extracts the heat dissipation medium from the oil storage device 1 and transports the heated heat dissipation medium to the oil storage device 1. At the same time, by driving the heat transfer oil to flow between the heat transfer oil tank 21 and the heat exchanger 22 through the second circulation assembly 24, the second circulation assembly 24 can drive the heat transfer oil heated by the heater in the heat transfer oil tank 21 to flow back to the heat transfer oil tank 21 after passing through the heat exchanger 22. Based on this, the heat exchanger 22 can exchange heat between the heat transfer oil and the heat dissipation medium entering the heat exchanger 22 to heat the heat dissipation medium entering the heat exchanger 22, realizing the heating of the extracted heat dissipation medium by the heating device 2. Thus, the heating device 2 realizes the heating of the heat dissipation medium through the double-circulation mode of the heat dissipation medium circulation driven by the first circulation assembly 23 and the heat transfer oil circulation driven by the second circulation assembly 24. Compared with the mode of only driving the heat dissipation medium circulation, the efficiency of heating the heat dissipation medium can be further improved, and energy can be further saved.

[0035] In a possible implementation manner, as Figure 1 and Figure 2As shown, the first circulation component 23 includes a first heat dissipation medium pipe 231, a heat dissipation medium circulation pump 232, a second heat dissipation medium pipe 233, and a third heat dissipation medium pipe 234; one end of the first heat dissipation medium pipe 231 is connected to the oil storage device 1, and the other end of the first heat dissipation medium pipe 231 is connected to the liquid inlet of the heat dissipation medium circulation pump 232; one end of the second heat dissipation medium pipe 233 is connected to the liquid outlet of the heat dissipation medium circulation pump 232, and the other end of the second heat dissipation medium pipe 233 is connected to the heat exchanger 22; one end of the third heat dissipation medium pipe 234 is connected to the heat exchanger 22, and the other end of the third heat dissipation medium pipe 234 is connected to the oil storage device 1.

[0036] In a specific embodiment, as Figure 1 and Figure 2 shown, the heating device 2 further includes a housing 25, a first outer pipe 26, and a second outer pipe 27. The heat-conducting oil tank 21 and the heat exchanger 22 are both located inside the housing 25. An inlet seat 28 and an outlet seat 29 are also provided inside the housing 25. One end of the first heat dissipation medium pipe 231 is connected through the inlet seat 28 to one end of the first outer pipe 26 passing through the housing 25, and the other end of the first outer pipe 26 is connected to the oil storage device 1 to achieve the connection between one end of the first heat dissipation medium pipe 231 and the oil storage device 1; one end of the third heat dissipation medium pipe 234 for connecting to the oil storage device 1 is connected through the outlet seat 29 to one end of the second outer pipe 27 passing through the housing 25, and the other end of the second outer pipe 27 is connected to the oil storage device 1 to achieve the connection between the other end of the third heat dissipation medium pipe 234 and the oil storage device 1.

[0037] When the first circulation component 23 drives the heat dissipation medium to flow between the oil storage device 1 and the heat exchanger 22, it is the heat dissipation medium circulation pump 232 that drives the heat dissipation medium in the oil storage device 1 to flow through the first outer pipe 26, the inlet seat 28, the first heat dissipation medium pipe 231, the circulation pump 232, and the second heat dissipation medium pipe 233 to the heat exchanger 22, and then flows back to the oil storage device 1 through the third heat dissipation medium pipe 234, the outlet seat 29, and the second outer pipe 27.

[0038] In the embodiment of the present application, when the first circulation component 23 drives the heat dissipation medium to flow between the oil storage device 1 and the heat exchanger 22, it is the heat dissipation medium circulation pump 232 that drives the heat dissipation medium in the oil storage device 1 to flow through the first heat dissipation medium pipe 231 and the second heat dissipation medium pipe 233 to the heat exchanger 22, and then flows back to the oil storage device 1 through the third heat dissipation medium pipe 234. Thus, by adopting the first circulation component 23 including multiple heat dissipation medium pipes and the heat dissipation medium circulation pump 232, the circulation of the heat dissipation medium can be simply and efficiently driven, saving costs.

[0039] In a possible implementation manner, as Figure 1 and Figure 2As shown, the second circulation component 24 includes a first heat-conducting oil pipe 241, a second heat-conducting oil pipe 242, a heat-conducting oil circulation pump 243, and a third heat-conducting oil pipe 244; one end of the first heat-conducting oil pipe 241 is communicated with the heat-conducting oil tank 21, and the other end of the first heat-conducting oil pipe 241 is communicated with the heat exchanger 22; one end of the second heat-conducting oil pipe 242 is communicated with the heat exchanger 22, and the other end of the second heat-conducting oil pipe 242 is communicated to the liquid inlet of the heat-conducting oil circulation pump 243; one end of the third heat-conducting oil pipe 244 is communicated to the liquid outlet of the heat-conducting oil circulation pump 243, and the other end of the third heat-conducting oil pipe 244 is communicated with the heat-conducting oil tank 21.

[0040] When the second circulation component 24 drives the heat-conducting oil to flow between the heat-conducting oil tank 21 and the heat exchanger 22, it is the heat-conducting oil circulation pump 243 that drives the heat-conducting oil in the heat-conducting oil tank 21 to flow through the first heat-conducting oil pipe 241 into the heat exchanger 22, and then flows back to the heat-conducting oil tank 21 through the second heat-conducting oil pipe 242, the heat-conducting oil circulation pump 243, and the third heat-conducting oil pipe 244 in sequence.

[0041] In the embodiment of the present application, when the second circulation component 24 drives the heat-conducting oil to flow between the heat-conducting oil tank 21 and the heat exchanger 22, it is the heat-conducting oil circulation pump 243 that drives the heat-conducting oil in the heat-conducting oil tank 21 to flow through the first heat-conducting oil pipe 241 into the heat exchanger 22, and then flows back to the heat-conducting oil tank 21 through the second heat-conducting oil pipe 242 and the third heat-conducting oil pipe 244. Thus, by adopting the second circulation component 24 including a plurality of heat-conducting oil pipes and the heat-conducting oil circulation pump 243, the circulation of the heat-conducting oil can be simply and efficiently driven, saving costs.

[0042] Optionally, in the heat exchanger 22, the end of the second heat dissipation medium pipe 233 communicated with the heat exchanger 22 is lower than the end of the third heat dissipation medium pipe 234 communicated with the heat exchanger 22, and the end of the second heat-conducting oil pipe 242 communicated with the heat exchanger 22 is higher than the end of the first heat-conducting oil pipe 241 communicated with the heat exchanger 22. Thus, the flow direction of the heat dissipation medium in the heat exchanger 22 is from bottom to top, and the flow direction of the heat-conducting oil in the heat exchanger 22 is from top to bottom, and the two directions are opposite, which can improve the heat exchange efficiency between the heat dissipation medium and the heat-conducting oil in the heat exchanger 22.

[0043] In a possible implementation manner, heat insulation layers formed of materials with a melting point higher than the maximum temperature within the target temperature range are provided outside both the heat-conducting oil tank 21 and the heat exchanger 22 (the heat insulation layers are not shown in the drawings). Thus, the heat consumption of the heat dissipation medium entering the heat-conducting oil tank 21 and the heat exchanger 22 can be reduced, and the utilization rate of the heat generated by the heater in the heat-conducting oil tank 21 is improved.

[0044] Optionally, a heat-insulating layer formed of a material with a melting point higher than the maximum temperature within the target temperature range may also be provided outside other components in the heating device 2. For example, a heat-insulating layer may be provided outside the first heat dissipation medium pipe 231, the second heat dissipation medium pipe 233, and the third heat dissipation medium pipe 234 in the heating device 2, as well as outside the first heat conduction oil pipe 241, the second heat conduction oil pipe 242, and the third heat conduction oil pipe 244. The embodiments of the present application do not limit this.

[0045] In addition, the melting point of the heat-insulating layer being greater than the maximum temperature within the target temperature range can reduce the possibility of the heat-insulating layer melting due to overheating of the heat dissipation medium. For example, based on the target temperature range being 124.5 °C to 125.5 °C, the heat-insulating layer can be made of glass wool, etc.

[0046] In a possible implementation, a temperature probe with a detection accuracy of ±0.5 °C is provided in the oil storage device (1) so that the target temperature range is 124.5 °C to 125.5 °C. Thus, it is possible to meet the requirement of performing a sealing test on the radiator 6 by injecting a heat dissipation medium of about 125 °C into the radiator 6.

[0047] In a specific embodiment, the temperature probe is connected to a temperature controller (such as a PID (Proportion Integration Differentiation) temperature controller). The temperature controller is connected to the heat exchanger. During the use of the radiator sealing detection device, the temperature probe will feedback the temperature of the heat dissipation medium in the oil storage device 1 to the temperature controller. The temperature controller determines whether the temperature is 125 °C to control the heat exchange speed of the heat exchanger so as to quickly maintain the temperature of the heat dissipation medium feedback by the temperature probe to the oil storage device 1 at about 125 °C. However, due to the accuracy of the temperature probe being ±0.5 °C, when the temperature of the heat dissipation medium feedback by the temperature probe to the oil storage device 1 is maintained at about 125 °C, the actual temperature of the heat dissipation medium in the oil storage device 1 is basically between 124.5 °C and 125.5 °C, that is, the target temperature range is basically 124.5 °C to 125.5 °C.

[0048] Based on the above settings of the temperature probe and the temperature controller, after the temperature probe feedbacks the temperature of the heat dissipation medium in the oil storage device 1 to the temperature controller, the temperature controller can control the output device 3 to transport at least part of the heat dissipation medium in the oil storage device 1 to the radiator 6 to be detected, so as to realize automatically controlling the output device 3 to start working.

[0049] Based on the above settings of the temperature probe, the temperature probe can be connected to a display device, such as a display screen, etc. The display device is used to display the temperature of the heat dissipation medium in the oil storage device 1 fed back by the temperature probe. After the operator observes that the temperature of the heat dissipation medium in the oil storage device 1 fed back by the temperature probe is within the target temperature range, the output device 3 can be manually adjusted so that the output device 3 transports at least part of the heat dissipation medium in the oil storage device 1 to the radiator 6 to be detected, so as to manually control the output device 3 to start working.

[0050] Based on this, the internal control board of the heater in the heat transfer oil tank 21 can be adjusted so that the internal control board controls the maximum temperature reached by the heating wire of the heater to be greater than the maximum temperature within the target temperature range. For example, the internal control board can be made to control the maximum temperature reached by the heating wire of the heater to be 130 degrees Celsius or 135 degrees Celsius, etc.

[0051] In a possible implementation, the flash point of the heat transfer oil is greater than the flash point of the heat dissipation medium. Thus, the situation of the heat transfer oil smoking or even burning during the operation of the radiator sealing detection device can be reduced, improving safety. For example, based on the target temperature range being 124.5 degrees Celsius to 125.5 degrees Celsius, the heat transfer oil can be dimethyl silicone oil, etc.

[0052] In a possible implementation, as Figure 1 shown, the output device 3 includes an output pipeline 31. The output pipeline 31 is used to transport at least part of the heat dissipation medium in the oil storage device 1 to the detachable radiator of the power transformer that is the radiator 6 to be detected. One end of the output pipeline 31 communicates with the oil storage device 1, and the other end of the output pipeline 31 communicates with the port of the radiator 6 for introducing the heat dissipation medium. A pressure pump 32 is provided on the output pipeline 31 to control the heat dissipation medium in the oil storage device 1 to be transported into the radiator 6 through the output pipeline 31, or to stop this transportation.

[0053] In a possible implementation, as Figure 1 shown, the radiator sealing detection device further includes a gas supply device 4; the output device 3 is further configured to stop transporting the heat dissipation medium to the radiator 6 after the volume of the heat dissipation medium in the radiator 6 is equal to the volume threshold; the gas supply device 4 communicates with the radiator 6, and the gas supply device 4 is configured to transport gas to the radiator 6 after the output device 3 stops outputting the heat dissipation medium to the radiator 6, so as to, after pressurizing the heat dissipation medium in the radiator 6, determine the result of the sealing detection of the radiator 6 according to whether the radiator 6 leaks the heat dissipation medium.

[0054] Among them, the volume threshold can be equal to the volume of the radiator 6 for storing the heat dissipation medium, or can be less than this volume. For example, the volume threshold is 99% or 95% of the volume of the radiator 6 for storing the heat dissipation medium, etc. The embodiments of the present application do not limit this.

[0055] In a specific embodiment, the gas supply device 4 includes a gas tank 41 and a ventilation pipe 42. The gas tank 41 is used to store gas. One end of the ventilation pipe 42 is connected to the gas tank 41, and the other end of the ventilation pipe 42 is connected to the air intake port of the radiator 6. An air pump is provided in the gas tank 41 to control the gas in the gas tank 41 to be transported into the radiator 6 through the ventilation pipe 42, or to stop such transportation, thereby realizing the gas supply device 4 to transport gas to the radiator 6 and stop transporting gas to the radiator 6.

[0056] In the embodiment of the present application, starting from the output device 3 transporting the heat dissipation medium in the oil storage device 1 to the radiator 6 to be detected, when the volume of the heat dissipation medium in the radiator 6 is equal to the volume threshold, the transportation of the heat dissipation medium to the radiator 6 can be stopped, and gas can be transported to the radiator 6 through the gas supply device 4, so as to pressurize the heat dissipation medium in the radiator 6. Therefore, it is possible to realize the airtightness detection of the radiator 6 through the high-temperature and high-pressure heat dissipation medium in the radiator 6.

[0057] Optionally, a flow monitor can be provided on the output pipe 31 to monitor the volume of the heat dissipation medium flowing into the radiator 6. Based on this, when the flow monitor monitors that the volume of the heat dissipation medium flowing into the radiator 6 is equal to the volume threshold, the transportation of the heat dissipation medium to the radiator 6 can be stopped by automatically or manually closing the valve provided on the output pipe 31, and the gas supply device 4 can be made to transport gas to the radiator 6 by automatically or manually opening the valve provided on the ventilation pipe 42.

[0058] Thus, through the radiator airtightness detection device in the embodiment of the present application, not only can the airtightness detection of the radiator 6 be realized through the heat dissipation medium at 60 ± 5°C and a pressure of 200 kPa in the radiator 6 (that is, meeting the requirement of "the airtightness test of the radiator, no leakage at an oil temperature of 60 ± 5°C and a pressure of 200 kPa" recorded in IEC60076-22-2 "Power Transformer and Reactor Accessories - Part 6: Removable Radiator" Section 6.1.1), but also the airtightness detection of the radiator 6 can be realized through the heat dissipation medium at about 125°C and 1 kg / cm² (equal to 0.1 MPa) in the radiator 6, so that during the airtightness detection process of the radiator 6, the temperature and pressure of the heat dissipation medium in the radiator 6 can both reach the detection conditions with relatively high requirements.

[0059] In one possible implementation, such as Figure 1As shown, the radiator sealing detection device further includes an observation stand 5, and the observation stand 5 is connected to the radiator 6. Thus, it is convenient for the staff to observe on the observation stand 5 whether there is leakage of the heat dissipation medium in the radiator 6. For example, the radiator sealing detection device includes a placement stand, the observation stand 5 is connected to the placement stand, and the radiator 6 is connected to the observation stand 5 through the placement stand. When the radiator sealing detection device is working, the radiator 6 is installed on the placement stand, and the staff stands on the observation stand 5 to observe whether there is leakage of the heat dissipation medium in the radiator 6.

[0060] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not expressly listed, or further includes elements inherent to such process, method, article or device. Without further limitation, an element defined by the statement "including a..." does not exclude the existence of additional identical elements in the process, method, article or device including the element.

[0061] Finally, it should be noted that the above are only the preferred embodiments of the present utility model, which are only used to illustrate the technical solutions of the present utility model and are not used to limit the protection scope of the present utility model. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model are all included within the protection scope of the present utility model.

Claims

1. A radiator sealing detection device, characterized in that: include: An oil storage device (1), a heating device (2) and an output device (3); The oil storage device (1) stores liquid heat dissipation medium; The heating device (2) is in communication with the oil storage device (1), and the heating device (2) is configured to extract heat dissipation medium from the oil storage device (1), heat the extracted heat dissipation medium, and transport the heated heat dissipation medium to the oil storage device (1); The output device (3) is in communication with the oil storage device (1), and the output device (3) is configured to, when the temperature of the heat dissipation medium in the oil storage device (1) is within a target temperature range, transport at least part of the heat dissipation medium in the oil storage device (1) to the radiator (6) to be tested, so as to determine a result of a sealing test on the radiator (6) according to whether the radiator (6) leaks the heat dissipation medium.

2. The radiator sealing detection device according to claim 1, characterized in that: The heating device (2) comprises a heat-conducting oil tank (21), a heat exchanger (22), a first circulation component (23) and a second circulation component (24); The heat-conducting oil tank (21) stores heat-conducting oil, and a heater is provided in the heat-conducting oil tank (21), and the heater is configured to heat the heat-conducting oil in the heat-conducting oil tank (21); The first circulation component (23) is connected between the oil storage device (1) and the heat exchanger (22), and the first circulation component (23) is configured to drive the heat dissipation medium to flow between the oil storage device (1) and the heat exchanger (22); The second circulation component (24) is connected between the heat transfer oil tank (21) and the heat exchanger (22), and the second circulation component (24) is configured to drive the heat transfer oil to flow between the heat transfer oil tank (21) and the heat exchanger (22); The heat exchanger (22) is configured to perform heat exchange between the heat transfer oil and the heat dissipation medium entering the heat exchanger (22), so as to heat the heat dissipation medium entering the heat exchanger (22).

3. The radiator sealing detection device according to claim 2, characterized in that: The first circulation component (23) comprises a first heat dissipation medium pipe (231), a heat dissipation medium circulation pump (232), a second heat dissipation medium pipe (233) and a third heat dissipation medium pipe (234); One end of the first heat dissipation medium pipe (231) is connected to the oil storage device (1), and the other end of the first heat dissipation medium pipe (231) is connected to the liquid inlet of the heat dissipation medium circulation pump (232); One end of the second heat dissipation medium pipe (233) is connected to the liquid outlet of the heat dissipation medium circulation pump (232), and the other end of the second heat dissipation medium pipe (233) is connected to the heat exchanger (22); One end of the third heat dissipation medium pipe (234) is in communication with the heat exchanger (22), and the other end of the third heat dissipation medium pipe (234) is in communication with the oil storage device (1).

4. The radiator sealing detection device according to claim 2, characterized in that: The second circulation component (24) comprises a first heat transfer oil pipe (241), a second heat transfer oil pipe (242), a heat transfer oil circulation pump (243) and a third heat transfer oil pipe (244); One end of the first heat-conducting oil pipe (241) is in communication with the heat-conducting oil tank (21), and the other end of the first heat-conducting oil pipe (241) is in communication with the heat exchanger (22); One end of the second heat transfer oil pipe (242) is in communication with the heat exchanger (22), and the other end of the second heat transfer oil pipe (242) is in communication with the liquid inlet of the heat transfer oil circulation pump (243); One end of the third heat transfer oil pipe (244) is connected to the liquid outlet of the heat transfer oil circulation pump (243), and the other end of the third heat transfer oil pipe (244) is connected to the heat transfer oil tank (21).

5. The radiator sealing detection device according to claim 2, characterized in that: The heat-conducting oil tank (21) and the heat exchanger (22) are both wrapped with a heat-insulating layer formed by a material having a melting point higher than the maximum temperature within the target temperature range.

6. The radiator sealing detection device according to claim 1, characterized in that: The output device (3) comprises an output pipe (31) for conveying at least part of the heat dissipation medium in the oil storage device (1) to a detachable heat sink of a power transformer serving as a heat sink (6) to be tested.

7. The radiator sealing detection device according to any one of claims 1 to 6, characterized in that: The radiator sealing detection device further comprises an air supply device (4); The output device (3) is further configured to stop supplying the heat dissipation medium to the heat dissipation medium after the volume of the heat dissipation medium in the heat dissipation medium (6) is equal to a volume threshold; The gas supply device (4) is in communication with the radiator (6). The gas supply device (4) is configured to deliver gas to the radiator (6) after the output device (3) stops outputting the heat dissipation medium to the radiator (6), so as to determine the result of the sealing test on the radiator (6) according to whether the radiator (6) leaks the heat dissipation medium after pressurizing the heat dissipation medium in the radiator (6).

8. The radiator sealing detection device according to any one of claims 1 to 6, characterized in that: The oil storage device (1) is provided with a temperature probe with a detection accuracy of ±0.5 degrees Celsius, so that the target temperature range is 124.5 degrees Celsius to 125.5 degrees Celsius.

9. The radiator sealing detection device according to any one of claims 1 to 6, characterized in that: The radiator sealing detection device further comprises an observation frame (5), wherein the observation frame (5) is connected to the radiator (6).

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