Device for quickly detecting leakage of valve by using high-pressure helium

Abstract

The utility model discloses a device for quickly detecting leakage of a valve by using high-pressure helium, which relates to the technical field of valve leakage detection and comprises a base, a valve leakage detection device, a valve leakage detection device and a valve leakage detection device, and is characterized in that the base is provided with a detection cavity for placing the valve to be detected; the detection channel comprises two channels which are formed in the base and are communicated with the detection cavity; the detection assembly comprises two detection air pipes which are connected into the corresponding channels through conveniently-disassembled mechanisms respectively; according to the device, a to-be-detected valve is firstly placed in a detection cavity, then first gas pipes of two detection gas pipes are in butt joint communication with an inlet and an outlet of the to-be-detected valve through corresponding channels, and then two stop levers are vertically inserted along guide grooves until second gas pipes are clamped by limiting grooves; at the moment, under the cooperation of the stop lever and the guide groove, the diameter of the first air pipe of the two detection air pipes is larger than that of the second air pipe, so that the two detection air pipes cannot be separated from the inlet and the outlet of the to-be-detected valve, and the detection process can be carried out.

Description

Technical Field

[0001] This utility model relates to the field of valve leak detection technology, specifically a valve leak detection device that uses high-pressure helium gas for rapid valve leak detection. Background Technology

[0002] In recent years, with weakening global demand, various industries in China have faced fierce competition, leading to frequent price wars. How to gain a foothold in this intense competition is a question manufacturers need to consider, and improving inspection efficiency while ensuring product quality is undoubtedly a simple and efficient approach.

[0003] Traditional valve inspection requires wrapping sealing tape or custom-made test connectors, and manual pre-tightening. After inspection, the connectors need to be cleaned of residual tape and re-wrapped for future connections. This is extremely inefficient for mass valve production. Utility Model Content

[0004] The purpose of this invention is to provide a device for rapid valve leak detection using high-pressure helium gas, thereby addressing the shortcomings of the prior art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a valve leak detection device using high-pressure helium gas, comprising: a base with a detection chamber for placing the valve to be tested; a detection channel including two channels on the base and communicating with the detection chamber; and a detection assembly including two detection tubes connected to the corresponding channels via a detachable mechanism, each detection tube including a first tube and a second tube connected together, wherein the diameter of the first tube is larger than the diameter of the second tube.

[0006] Preferably, the first tube of one detection tube is connected to the inlet of the valve to be tested, and the first tube of the other detection tube is connected to the outlet of the valve to be tested.

[0007] Preferably, each of the disassembly mechanisms includes a stop bar, the bottom of which has a limiting groove, and the base has a guide groove for vertical insertion of the stop bar. The stop bar slides vertically in the guide groove, causing the limiting groove to engage with the second air pipe, so that the stop bar abuts against the first air pipe.

[0008] Preferably, a positioning plate is fixedly installed on each of the second air tubes, and a positioning groove is provided on the base for the positioning plate to be embedded in. A sealing element for sealing the inlet end of the channel is fixedly connected to the positioning plate.

[0009] Preferably, the sealing element includes a sealing post fixedly connected to the positioning plate, and a sealing ring is fixedly connected to the sealing post.

[0010] Preferably, an extension rod is fixedly connected to the top of the stop bar, and the length direction of the extension rod is perpendicular to the length direction of the stop bar.

[0011] Preferably, the base is detachably connected to a cover that seals the detection chamber, the cover is fixedly connected to multiple docking posts, and the base is provided with docking grooves that correspond one-to-one with each docking post.

[0012] Preferably, a sealing soft rubber gasket is fixedly connected to the sealing surface of the cover.

[0013] Preferably, the second gas pipe of the detection gas pipe connected to the outlet of the valve to be tested is connected to an external helium detector, and the second gas pipe of the detection gas pipe connected to the inlet of the valve to be tested is connected to an external gas supply device for providing high-pressure helium.

[0014] In the above technical solution, this utility model provides a device for rapid valve leak detection using high-pressure helium. Specifically, during installation, the valve to be tested is first placed in the detection chamber. Then, the first tubes of the two detection gas tubes are respectively connected to the inlet and outlet of the valve to be tested through corresponding channels. Next, two stop rods are vertically inserted along the guide groove until the limiting groove locks the second gas tube. At this point, with the cooperation of the stop rods and the guide groove, the diameter of the first gas tube is larger than the diameter of the second gas tube, preventing the two detection gas tubes from detaching from the inlet and outlet of the valve to be tested, thus allowing the detection process to proceed. The entire process can quickly detect leaks in multiple valves; simultaneously, during the detection process, it effectively avoids excessive high-pressure helium causing the two detection gas tubes to detach from the valve to be tested, thereby affecting the detection effect. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings.

[0016] Figure 1 A schematic diagram of the overall structure provided for an embodiment of this utility model;

[0017] Figure 2 A diagram showing the open state of the cap provided in an embodiment of this utility model;

[0018] Figure 3 An exploded view of the detection component and the base provided in an embodiment of this utility model;

[0019] Figure 4 This is a schematic diagram of the detection component provided in an embodiment of the present invention.

[0020] Explanation of reference numerals in the attached figures:

[0021] 1. Base; 2. Detection chamber; 3. Channel; 4. Detection air pipe; 41. First air pipe; 42. Second air pipe; 5. Stop bar; 6. Limiting groove; 7. Guide groove; 8. Positioning plate; 9. Positioning groove; 10. Sealing column; 11. Sealing ring; 12. Extension rod; 13. Cover; 14. Connecting column; 15. Connecting groove; 16. Valve to be tested. Detailed Implementation

[0022] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings.

[0023] Please see Figure 1-4 This utility model provides a valve leak detection device using high-pressure helium gas, comprising a base 1, a detection channel 3, and a detection component. The base 1 has a detection chamber 2 for placing the valve 16 to be tested. The detection channel 3 includes two channels 3 that are opened on the base 1 and communicate with the detection chamber 2. The detection component includes two detection air tubes 4 that are respectively connected to the corresponding channels 3 by a detachable mechanism. Each detection air tube 4 includes a first air tube 41 and a second air tube 42 that are connected to each other. The diameter of the first air tube 41 is larger than the diameter of the second air tube 42.

[0024] It should be noted that the first air tube 41 of one of the detection air tubes 4 is connected to the inlet of the valve 16 to be tested, and the first air tube 41 of the other detection air tube 4 is connected to the outlet of the valve 16 to be tested.

[0025] Each disassembly mechanism includes a stop bar 5, with a limiting groove 6 at its bottom. A guide groove 7 is provided on the base 1 for vertical insertion of the stop bar 5. The stop bar 5 slides vertically within the guide groove 7, driving the limiting groove 6 to engage with the second air pipe 42, thus abutting the stop bar 5 against the first air pipe 41. It should be noted that the length of the guide groove 7 is perpendicular to the length of the channel 3. Furthermore, the side of the guide groove 7 facing the first air pipe 41 is flush with the side where the first air pipe 41 intersects with the second air pipe 42, so that after the stop bar 5 is inserted, it prevents the first air pipe 41 from detaching from the inlet or outlet of the valve 16 under test, thus affecting the detection.

[0026] Specifically, during installation, the valve to be tested 16 is first placed in the testing chamber 2. Then, the first air tubes 41 of the two testing air tubes 4 are connected to the inlet and outlet of the valve to be tested 16 through the corresponding channels 3. Next, the two stop rods 5 are vertically inserted along the guide grooves 7 until the limiting grooves 6 lock the second air tube 42. At this point, with the cooperation of the stop rods 5 and the guide grooves 7, the diameter of the first air tube 41 of the two testing air tubes 4 is larger than the diameter of the second air tube 42, so that the two testing air tubes 4 cannot detach from the inlet and outlet of the valve to be tested 16, thus allowing the testing process to proceed. The entire process can quickly realize the leak detection of multiple valves 16 to be tested; at the same time, during the testing process, it effectively avoids the two testing air tubes 4 from detaching from the valve to be tested 16 due to excessive high-pressure helium gas, thereby affecting the testing results.

[0027] Each second gas pipe 42 is fixedly mounted with a positioning plate 8. The base 1 has a positioning groove 9 for the positioning plate 8 to be embedded in. A sealing element is fixedly connected to the positioning plate 8 to seal the inlet end of the channel 3. The sealing element includes a sealing post 10 fixedly connected to the positioning plate 8, and a sealing ring 11 fixedly connected to the sealing post 10. Specifically, when the first gas pipe 41 of the two detection gas pipes 4 is connected to the inlet or outlet of the receiving valve 16, the sealing post 10 can seal the inlet end of the channel 3 to prevent helium leakage.

[0028] An extension rod 12 is fixedly connected to the top of the stop bar 5, and the length direction of the extension rod 12 is perpendicular to the length direction of the stop bar 5. The extension rod 12 facilitates the disassembly of the stop bar 5 by the staff.

[0029] The base 1 is detachably connected to a cover 13 that seals the detection chamber 2. Multiple mating posts 14 are fixedly connected to the cover 13, and the base 1 has mating grooves 15 corresponding to each mating post 14. A sealing rubber gasket is fixedly connected to the sealing surface of the cover 13. The cover 13 seals the detection chamber 2, while the sealing rubber gasket further enhances the sealing performance. Specifically, each mating post 14 is a bolt, and each mating groove 15 is a threaded groove. The bolts and their corresponding threaded grooves are connected by threads, thus achieving a sealed connection between the cover and the detection chamber 2.

[0030] It should be noted that an embedded groove is provided on the sealing surface where the base 1 and the cover 13 are sealed, and a sealing ring is provided in the embedded groove, thereby further increasing the sealing performance between the cover 13 and the base 1.

[0031] The second gas pipe 42 of the detection gas pipe 4, which connects to the outlet of the valve under test 16, is connected to an external helium detector. The second gas pipe 42 of the detection gas pipe 4, which connects to the inlet of the valve under test 16, is connected to an external gas supply device for providing high-pressure helium. During testing, the outlet switch of the valve under test 16 is closed. After helium is introduced, if the helium detector detects helium, it indicates that the valve under test 16 has a problem; if it does not detect helium, the valve under test 16 is not problematic.

[0032] The foregoing description only illustrates certain exemplary embodiments of the present invention. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A device for rapid valve leak detection using high-pressure helium gas, characterized in that, include: The base has a detection chamber for placing the valve to be tested. The detection channel includes two channels that are opened on the base and communicate with the detection cavity; The detection assembly includes two detection tubes connected to corresponding channels via a detachable mechanism. Each detection tube includes a first tube and a second tube that are connected to each other. The diameter of the first tube is larger than the diameter of the second tube.

2. The valve leak detection device using high-pressure helium gas as described in claim 1, characterized in that, One of the detection trachea's first trachea is connected to the inlet of the valve to be tested, and the other detection trachea's first trachea is connected to the outlet of the valve to be tested.

3. The valve leak detection device using high-pressure helium gas as described in claim 1, characterized in that, Each of the aforementioned disassembly mechanisms includes a stop bar, the bottom of which has a limiting groove, and the base has a guide groove for vertical insertion of the stop bar. The stop bar slides vertically within the guide groove, causing the limiting groove to engage with the second air tube, thereby engaging the stop bar with the first air tube.

4. The valve leak detection device using high-pressure helium gas as described in claim 1, characterized in that, A positioning plate is fixedly installed on each of the second air tubes. The base has a positioning groove for the positioning plate to be embedded in. A sealing element for sealing the inlet end of the channel is fixedly connected to the positioning plate.

5. A valve leak detection device using high-pressure helium gas for rapid leak detection according to claim 4, characterized in that, The sealing element includes a sealing post fixedly connected to the positioning plate, and a sealing ring is fixedly connected to the sealing post.

6. A valve leak detection device using high-pressure helium gas for rapid leak detection according to claim 3, characterized in that, An extension rod is fixedly connected to the top of the stop bar, and the length direction of the extension rod is perpendicular to the length direction of the stop bar.

7. A valve leak detection device using high-pressure helium gas for rapid leak detection according to claim 1, characterized in that, The base is detachably connected to a cover that seals the detection chamber. Multiple docking posts are fixedly connected to the cover, and the base has docking grooves that correspond one-to-one with each docking post.

8. A valve leak detection device using high-pressure helium gas for rapid leak detection according to claim 7, characterized in that, The sealing surface of the cover is fixedly connected with a sealing soft rubber gasket.

9. A valve leak detection device using high-pressure helium gas for rapid leak detection according to claim 1, characterized in that, The second tube of the test tube connected to the outlet of the valve under test is connected to an external helium detector, and the second tube of the test tube connected to the inlet of the valve under test is connected to an external gas delivery device for providing high-pressure helium.

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