Air tightness detection device

Abstract

The utility model relates to an air tightness detection device. The air tightness detection device comprises a reservoir, a pressure test pump and a pressure detection member. The reservoir is used for storing water; the pressure testing pump is provided with a first liquid passing opening, a second liquid passing opening and a third liquid passing opening, the second liquid passing opening and the third liquid passing opening are both communicated with the first liquid passing opening, the first liquid passing opening of the pressure testing pump is communicated with the reservoir, the second liquid passing opening of the pressure testing pump is used for being communicated with a water inlet of a tested part, and the third liquid passing opening of the pressure testing pump is used for being communicated with a water outlet of the tested part; the pressure detection piece is used for detecting the water pressure in the detected part. The first liquid passing port of the pressure test pump is communicated with the reservoir, and the second liquid passing port of the pressure test pump is communicated with the water inlet of the detected part, so that the pressure test pump can provide pressure so as to guide water in the reservoir into the detected part, and the pressure detection piece is arranged on the pipeline between the pressure test pump and the detected part so as to detect the pressure of the detected part. Therefore, the water pressure in the detected part can be detected, whether water leakage exists in the detected part or not is judged, and timely feedback is carried out in time.

Description

Technical Field

[0001] This application relates to the field of sealing test technology, and in particular to airtightness testing devices. Background Technology

[0002] In existing technologies, the conventional method for testing the sealing performance of water-cooled plates is to attach color-developing paper to the interface of the water-cooled plate. If the interface leaks water or the airtightness of the interface is insufficient, the color-developing paper will change color when it comes into contact with water, thus revealing the leak at the interface of the water-cooled plate. However, the color development of the color-developing paper when it comes into contact with water is obtained through careful observation by the naked eye, which makes the feedback on the leak at the interface of the water-cooled plate untimely and poses a safety hazard. Utility Model Content

[0003] Therefore, it is necessary to provide an airtightness detection device to address the technical problem of untimely feedback on water leakage at the interface of the water-cooled plate in the existing technology, which poses a safety hazard.

[0004] An airtightness detection device, comprising:

[0005] A water storage tank, wherein the water storage tank is used to store liquid water;

[0006] A pressure testing pump, comprising a first liquid inlet and a second liquid inlet and a third liquid inlet, both connected to the first liquid inlet; the first liquid inlet of the pressure testing pump is connected to the water storage tank; the second liquid inlet of the pressure testing pump is connected to the water inlet of the part under test; and the third liquid inlet of the pressure testing pump is connected to the water outlet of the part under test.

[0007] A pressure detection element, used to detect the water pressure inside the tested part.

[0008] In one embodiment, the pressure detection element is disposed on the pipeline between the second liquid inlet of the pressure testing pump and the water inlet of the tested part.

[0009] In one embodiment, the airtightness testing device further includes a pressure regulating valve, which is disposed on the pipeline between the water storage tank and the first liquid inlet of the test pump, and is used to regulate the outlet water pressure of the test pump.

[0010] In one embodiment, the airtightness testing device further includes a controller, which is electrically connected to the test pump, the pressure regulating valve, and the pressure detection element. The controller is used to control the pressure regulating valve to change the outlet water pressure of the test pump, and the pressure detection element is used to detect the water pressure information inside the tested part under different outlet water pressures of the test pump. The controller is configured to control the test pump to shut down when the pressure difference of the different water pressure information detected by the pressure detection element is greater than a preset value.

[0011] In one embodiment, the airtightness testing device further includes a flow detection element, which is used to detect the water flow velocity inside the tested part.

[0012] In one embodiment, the flow detection element is disposed on the pipeline between the third inlet of the pressure test pump and the outlet of the tested component.

[0013] In one embodiment, the airtightness detection device further includes a temperature detection element, which is used to detect the temperature of the tested part in order to determine the location of the leak.

[0014] In one embodiment, the airtightness testing device further includes a worktable and a positioning element. The worktable is used to support the part under test, and the positioning element is connected to the worktable and used to connect the part under test to fix the part under test to the worktable.

[0015] In one embodiment, the airtightness testing device further includes a protective shell for fitting over the part under test, and the protective shell has a clearance hole for allowing the pipeline between the pressure testing pump and the part under test to pass through.

[0016] In one embodiment, the lower end of the protective shell has a drain hole, and the airtightness testing device further includes a water tank, the inlet of which is connected to the drain hole.

[0017] Beneficial effects:

[0018] The airtightness testing device provided in this embodiment includes a water storage tank, a pressure testing pump, and a pressure detection element. The water storage tank is used to store water. The pressure testing pump has a first liquid inlet and a second liquid inlet and a third liquid inlet, both connected to the first liquid inlet. The first liquid inlet of the pressure testing pump is connected to the water storage tank, the second liquid inlet of the pressure testing pump is connected to the water inlet of the part under test, and the third liquid inlet of the pressure testing pump is connected to the water outlet of the part under test. The pressure detection element is used to detect the water pressure inside the part under test. In this application, the first liquid inlet of the pressure testing pump is connected to the water storage tank, and the second liquid inlet of the pressure testing pump is connected to the water inlet of the part under test, so that the pressure testing pump can provide pressure to introduce water from the water storage tank into the part under test. Through the pressure detection element, the water pressure inside the part under test can be detected, and based on the water pressure provided by the pressure testing pump, it can be determined whether there is water leakage inside the part under test, so as to timely determine the airtightness of the part under test, provide timely feedback, and improve safety performance. The third liquid inlet of the pressure testing pump is connected to the outlet of the tested part, so as to drain the water in time and facilitate the recycling of water in the reservoir. No additional water replenishment is required, which improves the adaptability of the tightness testing device. Attached Figure Description

[0019] Figure 1 Schematic diagram of the airtightness detection device provided by an embodiment of the present application Figure 1 .

[0020] Figure 2 Schematic diagram of the airtightness detection device provided by an embodiment of the present application with the protective shell removed.

[0021] Figure 3 Schematic diagram of the airtightness detection device provided by an embodiment of the present application Figure 2 .

[0022] Reference numerals in the drawings:

[0023] 100 - water storage tank; 110 - water conduit; 210 - pressure test pump; 211 - second liquid inlet; 212 - third liquid inlet; 220 - pressure regulating valve; 230 - pressure gauge panel; 240 - water inlet pipe; 250 - water outlet pipe; 310 - pressure detection component; 320 - controller; 330 - flow detection component; 340 - temperature detection component; 410 - workbench; 420 - protective shell; 430 - observation window; 440 - handle; 500 - tested part. Detailed implementation manners

[0024] In order to make the above - mentioned objects, features and advantages of the present application more obvious and understandable, the following will describe the detailed implementation manners of the present application with reference to the accompanying drawings. Many specific details are set forth in the following description in order to fully understand the present application. However, the present application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without departing from the connotation of the present application. Therefore, the present application is not limited by the specific embodiments disclosed below.

[0025] In the description of the present application, it should be understood that if terms such as "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. appear, the orientation or positional relationship indicated by these terms is based on the orientation or positional relationship shown in the drawings, and 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. <00Furthermore, where the terms "first" and "second" appear, these terms are for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined with "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, where the term "multiple" appears, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0027] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0028] In this application, unless otherwise expressly specified and limited, the use of descriptions such as "above" or "below" the second feature indicates that the first and second features are in direct contact or indirect contact via an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. Similarly, "below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0029] It should be noted that if an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. If an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. If so, the terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used in this application are for illustrative purposes only and do not represent the only possible implementation.

[0030] See Figure 1 and Figure 2 , Figure 1 Schematic diagram of a tightness detection device provided in an embodiment of this application Figure 1 . Figure 2This is a schematic diagram of an airtightness testing device provided in an embodiment of this application with the protective shell removed. The airtightness testing device provided in an embodiment of this application includes a water storage tank 100, a pressure testing pump 210, and a pressure testing element 310. The water storage tank 100 is used to store water. The pressure testing pump 210 has a first liquid inlet and a second liquid inlet 211 and a third liquid inlet 212, both connected to the first liquid inlet. The first liquid inlet of the pressure testing pump 210 is connected to the water storage tank 100. The second liquid inlet 211 of the pressure testing pump 210 is used to connect to the water inlet of the part under test 500, and the third liquid inlet 212 of the pressure testing pump 210 is used to connect to the water outlet of the part under test 500. The pressure testing element 310 is used to detect the water pressure inside the part under test 500.

[0031] Specifically, in this application, the first inlet of the pressure testing pump 210 is connected to the water storage tank 100, and the second inlet 211 of the pressure testing pump 210 is connected to the water inlet of the tested part 500. This allows the pressure testing pump 210 to provide pressure to introduce water from the water storage tank 100 into the tested part 500. By setting a pressure detection element 310, the water pressure inside the tested part 500 can be detected. Based on the water pressure provided by the pressure testing pump 210, it can be determined whether there is any leakage inside the tested part 500, and the airtightness of the tested part 500 can be judged in a timely manner, providing timely feedback and improving safety performance. The third inlet 212 of the pressure testing pump 210 is connected to the water outlet of the tested part 500, thereby draining water into the water storage tank 100 in a timely manner, facilitating the recycling of water in the water storage tank 100, eliminating the need for additional water replenishment, and improving the adaptability of the airtightness testing device.

[0032] It should be noted that the tested component 500 in this application has a water system, which is composed of multiple pipes and connectors. The water outlet and water inlet of the tested component 500 refer to the water outlet and water inlet of the water system within the tested component 500. During testing, all pipes and connectors within the tested component 500 need to be properly connected. In this embodiment, the tested component 500 is a water-cooled plate, but it is not limited to this.

[0033] Furthermore, the airtightness testing device also includes a water inlet pipe 110, through which the water storage tank 100 and the first liquid inlet of the pressure testing pump 210 are connected, thereby enabling water pumping and drainage. The airtightness testing device also includes a water inlet pipe 240, through which the second liquid inlet 211 of the pressure testing pump 210 is connected to the water inlet of the tested part 500. The airtightness testing device also includes a water outlet pipe 250, through which the third liquid inlet 212 of the pressure testing pump 210 is connected to the water outlet of the tested part 500.

[0034] See Figure 1 and Figure 2In one embodiment, the pressure detection element 310 is disposed on the pipeline between the second liquid inlet 211 of the pressure test pump 210 and the water inlet of the tested part 500.

[0035] Specifically, when the tested part 500 leaks water, the air pressure in the inlet pipe 240 changes before the air pressure in the outlet pipe 250. Therefore, by installing the pressure detection element 310 in the inlet pipe 240, the change in water pressure within the tested part 500 can be detected more promptly, improving feedback timeliness and thus enhancing the performance of the airtightness testing device. Preferably, the pressure detection element 310 is a pressure sensor.

[0036] See Figure 1 and Figure 2 In one embodiment, the air tightness testing device further includes a pressure regulating valve 220, which is disposed on the pipeline between the water storage tank 100 and the first liquid inlet of the pressure test pump 210. The pressure regulating valve 220 is used to adjust the outlet water pressure of the pressure test pump 210, so that the air tightness of the tested part 500 under different water pressure conditions can be detected by the pressure detection element 310, so as to realize the detection of the pressure resistance value of the tested part 500, thereby improving the adaptability of the air tightness testing device.

[0037] See Figure 1 and Figure 2 In one embodiment, the airtightness testing device further includes a controller 320, which is electrically connected to the test pump 210, the pressure regulating valve 220, and the pressure detection element 310. The controller 320 is used to control the pressure regulating valve 220 to change the outlet water pressure of the test pump 210. The pressure detection element 310 is used to detect the water pressure information inside the tested part 500 under different outlet water pressures of the test pump 210. The controller 320 is configured to control the test pump 210 to shut down when the pressure difference of the different water pressure information detected by the pressure detection element 310 is greater than a preset value.

[0038] Specifically, the controller 320 can control the pressure regulating valve 220 to change the outlet pressure of the test pump 210, so that the test pump 210 provides different pressures. Thus, when the pressure resistance value of the tested part 500 is tested, if the outlet pressure of the test pump 210 increases and the tested part 500 cannot withstand the pressure at this time, and water leaks at the joints, seals, etc. of the tested part 500, the controller 320 will detect a pressure difference greater than the preset value, and thus respond quickly to control the test pump 210 to shut down, so as to avoid causing safety hazards.

[0039] This embodiment uses the pressure testing pump 210 providing a first pressure value and a second pressure value as an example for explanation. The controller 320 controls the pressure testing pump 210 to provide the first pressure value for pumping water, so that water in the reservoir 100 flows into the tested component 500. Then, the pressure detection element 310 transmits the detected first water pressure value to the controller 320. After the tested component 500 drains water, the controller 320 controls the pressure regulating valve 220 to change the outlet pressure of the pressure testing pump 210, so that the pressure testing pump 210 provides a second pressure value greater than the first pressure value for pumping water, so that water in the reservoir 100 flows into the tested component 500. Then, the pressure detection element 310 transmits the detected second water pressure value to the controller 320, allowing the controller 320 to obtain the pressure difference value based on the first and second water pressure values. If the pressure difference is greater than the preset value and remains therefore for a period of time, the tested part 500 is judged to be leaking; if the pressure difference is less than or equal to the preset value, the tested part 500 is judged not to be leaking, thus accurately determining the airtightness of the tested part 500. When the controller 320 determines that the tested part 500 is leaking, the controller 320 can issue a warning signal for timely feedback, promptly notifying the operator and improving safety.

[0040] It should be noted that when the differential pressure value is greater than the preset value and is maintained for a period of time, the controller 320 will determine that the tested part 500 is leaking water, thereby eliminating the error problem caused by water flow fluctuation and improving the reliability of the airtightness detection device.

[0041] It should be noted that, in this embodiment, the pressure provided by the test pump 210 can be in multiple sets, and gradient tests can be performed. For example, the pressure values ​​are 0.5 MPa, 1 MPa, 1.5 MPa, and 2 MPa. Through multiple sets of tests, the accuracy of the airtightness test of the tested part 500 can be further improved.

[0042] Furthermore, the pressure test pump 210 is equipped with a pressure gauge 230, which allows the pressure provided by the pressure test pump 210 to be obtained for direct observation.

[0043] See Figure 1 and Figure 2 In one embodiment, the airtightness testing device further includes a flow detection element 330, which is used to detect the water flow velocity within the tested part 500.

[0044] Specifically, when the tested component 500 leaks, the water flow velocity inside the component 500 changes. By detecting the water flow velocity through the flow detection element 330, the airtightness of the tested component 500 can be accurately detected. Furthermore, when the pressure detection element 310 malfunctions, the airtightness of the tested component 500 can be accurately determined through the detection value of the flow detection element 330, thus improving the reliability of the airtightness detection device. Preferably, the flow detection element 330 is a flow sensor.

[0045] See Figure 1 and Figure 2 In one embodiment, the flow detection element 330 is disposed on the pipeline between the third liquid inlet 212 of the pressure test pump 210 and the outlet of the tested part 500.

[0046] Specifically, the flow detection element 330 is installed on the outlet pipe 250. When the tested part 500 leaks, the change in water flow velocity in the outlet pipe 250 will be greater than the change in water flow velocity in the inlet pipe 240. By placing the flow detection element 330 on the outlet pipe 250, the change in water flow velocity can be detected more accurately, thereby accurately determining whether the tested part 500 is leaking and improving the accuracy and sensitivity of the airtightness judgment of the tested part 500.

[0047] Furthermore, the flow detection device 330 is electrically connected to the controller 320. The flow detection device 330 transmits the detected water flow velocity information to the controller 320. The controller 320 determines whether the tested part 500 is leaking water based on the water flow velocity information. When the controller 320 determines that the tested part 500 is leaking water, it issues an alarm message.

[0048] See Figure 1 , Figure 2 and Figure 3 , Figure 3 Schematic diagram of a tightness detection device provided in an embodiment of this application Figure 2 In one embodiment, the airtightness testing device further includes a temperature detection element 340 for detecting the temperature of the part 500 under test.

[0049] Specifically, when the tested component 500 leaks water, the temperature of the leaking area differs from other areas. This allows for accurate determination of the leak location based on the temperature differences between different areas of the tested component 500, improving the performance of the airtightness testing device. The temperature detection element 340 monitors the temperature change of the tested component 500 from before to after pressure testing. It can monitor the temperature of components requiring water cooling, facilitating the iteration and cooling verification of water-cooled components. Preferably, the temperature detection element 340 is a thermometer.

[0050] Furthermore, the temperature detection element 340 is electrically connected to the controller 320, thereby enabling the temperature information to be transmitted to the controller 320, which then determines the location of the leak in the tested part 500 based on the temperature information.

[0051] See Figure 1 , Figure 2 and Figure 3 In one embodiment, the airtightness testing device further includes a worktable 410 and a positioning element. The worktable 410 supports the part 500 to be tested, and the positioning element is connected to the worktable 410 and used to connect the part 500 to be tested, thereby fixing the part 500 to be tested on the worktable 410 to prevent displacement of the part 500 during the test, reducing interference with the data and improving the accuracy of the airtightness testing device in testing the airtightness of the part 500. The positioning element is a clamp, which facilitates the installation and removal of the part 500 to be tested, improving assembly efficiency.

[0052] See Figure 1 , Figure 2 and Figure 3 In one embodiment, the airtightness testing device further includes a protective shell 420, which is used to cover the part under test 500, and the protective shell 420 has a clearance hole for the pipeline between the test pressure pump 210 and the part under test 500 to pass through.

[0053] Specifically, the protective shell 420 prevents the tested part 500 from flying out and injuring people due to water leakage and instantaneous pressure relief, thus improving the safety of the airtightness testing device.

[0054] Furthermore, the protective shell 420 has an observation window 430 on its upper part, which facilitates observation of the part under test 500.

[0055] Furthermore, a handle 440 is provided on the top of the protective shell 420 to facilitate the handling of the protective shell 420. There are two handles 440, which are respectively located on both sides of the observation window 430.

[0056] See Figure 1 , Figure 2 and Figure 3 In one embodiment, the lower end of the protective shell 420 has a drain hole, and the airtightness testing device also includes a water tank. The water inlet of the water tank is connected to the drain hole, so that the water leaking from the tested part 500 can be collected and treated to avoid environmental impact.

[0057] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0058] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this patent application should be determined by the appended claims.

Claims

1. An airtightness testing device, characterized in that, The airtightness detection device includes: A water storage tank, wherein the water storage tank is used to store liquid water; A pressure testing pump, comprising a first liquid inlet and a second liquid inlet and a third liquid inlet, both connected to the first liquid inlet; the first liquid inlet of the pressure testing pump is connected to the water storage tank; the second liquid inlet of the pressure testing pump is connected to the water inlet of the part under test; and the third liquid inlet of the pressure testing pump is connected to the water outlet of the part under test. A pressure detection element, used to detect the water pressure inside the part being tested.

2. The airtightness testing device according to claim 1, characterized in that, The pressure detection device is installed on the pipeline between the second liquid inlet of the pressure test pump and the water inlet of the part being tested.

3. The airtightness testing device according to claim 1, characterized in that, The airtightness testing device also includes a pressure regulating valve, which is installed on the pipeline between the water storage tank and the first liquid inlet of the test pump. The pressure regulating valve is used to adjust the outlet water pressure of the test pump.

4. The airtightness testing device according to claim 3, characterized in that, The airtightness testing device also includes a controller, which is electrically connected to the test pump, the pressure regulating valve, and the pressure detection element. The controller is used to control the pressure regulating valve to change the outlet water pressure of the test pump. The pressure detection element is used to detect the water pressure information inside the tested part under different outlet water pressures of the test pump. The controller is configured to control the test pump to shut down when the pressure difference of the different water pressure information detected by the pressure detection element is greater than a preset value.

5. The airtightness testing device according to claim 1, characterized in that, The airtightness testing device also includes a flow detection element, which is used to detect the water flow velocity inside the tested part.

6. The airtightness testing device according to claim 5, characterized in that, The flow detection device is installed on the pipeline between the third liquid inlet of the test pump and the outlet of the tested part.

7. The airtightness testing device according to any one of claims 1-6, characterized in that, The airtightness testing device also includes a temperature detection element, which is used to detect the temperature of the tested part in order to determine the location of the leak.

8. The airtightness testing device according to any one of claims 1-6, characterized in that, The airtightness testing device further includes a worktable and a positioning component. The worktable is used to support the part under test, and the positioning component is connected to the worktable and used to connect the part under test to fix the part under test to the worktable.

9. The airtightness testing device according to any one of claims 1-6, characterized in that, The airtightness testing device also includes a protective shell, which is used to cover the part under test, and the protective shell has a clearance hole for the pipeline between the pressure testing pump and the part under test to pass through.

10. The airtightness testing device according to claim 9, characterized in that, The lower end of the protective shell has a drain hole, and the airtightness testing device also includes a water tank, the inlet of which is connected to the drain hole.

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