A helium detection test device suitable for water-cooled systems

Abstract

This utility model belongs to the technical field of helium detection testing devices, and particularly relates to a helium detection testing device suitable for water-cooled systems. It includes a vacuum tank and a vacuum cover. An electron beam generator and a helium nucleus leak detector are respectively mounted on the vacuum cover. The vacuum tank also includes a storage tank and a storage cover. The storage tank has an injection port, and the storage cover has an outlet port. The vacuum tank has a docking mechanism for connecting the outlet port and the electron beam generator. The docking mechanism includes a rotating sleeve with a driven gear fixedly mounted on it. The vacuum tank also has a driving gear driven by a rotary motor. This helium detection testing device for water-cooled systems, through the gear transmission structure driven by a rotary motor, combined with the guiding action of the sliding guide rail and the guide ring groove, enables multi-directional rotation of the storage tank and the storage cover, precisely adjusting the docking position of the outlet port and the electron beam generator, significantly improving the docking accuracy.

Description

Technical Field

[0001] This utility model relates to the technical field of helium detection testing devices, and in particular to a helium detection testing device suitable for water-cooled systems. Background Technology

[0002] In industrial production, water cooling systems are widely used in many fields such as power, chemical, and metallurgy due to their high heat dissipation capacity. The sealing performance of a water cooling system is directly related to its operational safety and stability. If leaks occur, not only will heat dissipation efficiency be affected, but it may also lead to equipment failure, production interruption, or even safety accidents. Therefore, rigorous sealing testing of water cooling systems is essential.

[0003] Helium leak detection, a high-precision leak detection method, leverages the small molecular size, strong penetrability, and resistance to adsorption by other substances of helium to become an important means of testing the sealing performance of water-cooling systems. Its basic principle involves filling the water-cooling system under test with helium at a certain pressure, then placing the inner storage chamber inside a vacuum chamber, which is then evacuated. Once the vacuum chamber reaches a specified vacuum level, if a leak exists in the inner storage chamber, helium will escape from the leak point into the vacuum chamber. An electron beam generator then bombards the escaping helium, ionizing it. The ionized helium is then detected using relevant detection equipment to determine whether a leak exists in the water-cooling system and the extent of the leak.

[0004] However, when assembling the storage inner box, the electron beam generator needs to be manually connected to the gas outlet of the inner box. Since manual operation makes it difficult to ensure the accuracy of the connection, the relative position of the electron beam generator and the gas outlet of the inner box is prone to deflection. This causes the electron beam to fail to accurately and comprehensively bombard the helium gas escaping from the gas outlet of the inner box, resulting in incomplete ionization of the helium gas and causing experimental errors. Utility Model Content

[0005] In order to overcome the defects of the prior art mentioned above, the inventors conducted in-depth research and, after a great deal of creative work, completed this utility model.

[0006] Specifically, the technical problem to be solved by this utility model is to provide a helium detection test device suitable for water-cooled systems, so as to solve the technical problem that the current manual docking of the electron beam generator and the gas outlet of the inner box is prone to deflection, resulting in incomplete helium ionization and causing experimental errors.

[0007] To solve the above-mentioned technical problems, the present invention provides the following technical solution:

[0008] A helium detection test device suitable for water-cooled systems includes a vacuum tank and a vacuum cover. The vacuum tank has a vacuum chamber for testing. The vacuum cover is equipped with an electron beam generator and a helium nucleus leak detector. The vacuum chamber in the vacuum tank also has a storage tank and a storage cover. The storage tank is equipped with a gas injection port, and the storage cover is equipped with a gas outlet port adapted to the electron beam generator.

[0009] The bottom of the vacuum tank is provided with a docking mechanism for connecting the gas outlet and the electron beam generator. The docking mechanism includes a rotating sleeve fixedly installed at the bottom of the storage tank, and a driven gear is fixedly installed at one end of the rotating sleeve that protrudes from the vacuum tank. The bottom of the vacuum tank is also provided with a driving gear driven by a rotary motor, and the driving gear and the driven gear mesh with each other. The rotary motor is fixedly installed below the vacuum tank through a rotating seat.

[0010] As an improved technical solution, the rotating sleeve has symmetrically distributed lifting grooves, and a traction rod driven by a traction cylinder is slidably connected in the rotating sleeve. The traction rod is slidably arranged along the axial direction of the rotating sleeve through the lifting grooves. One end of the traction rod extending into the lifting groove is hinged to a connecting rod, and the end of the connecting rod away from the traction rod is hinged to a docking slide. The docking slide is provided with a helium docking connector corresponding to the gas injection interface, and a pipe on the helium docking connector extends out of the vacuum cover and connects to a helium tank.

[0011] As an improved technical solution, one end of the traction rod extending into the lifting groove is fixedly connected to the piston rod of the traction cylinder, and the traction cylinder is rotatably connected to the bottom end of the vacuum tank through a rotating seat.

[0012] As an improved technical solution, the inner wall of the vacuum tank is provided with a guide ring groove, and the storage cover is provided with symmetrically distributed sliding guide rails. One end of the sliding guide rail is fixedly connected to the storage cover, and the other end of the sliding guide rail extends into the guide ring groove. The storage cover is rotated along the center of the vacuum tank through the sliding guide rail.

[0013] As an improved technical solution, the end of the docking slide away from the connecting rod is connected to the slide guide rail, and the docking slide is slidably connected to the storage cover through the slide guide rail.

[0014] As an improved technical solution, the vacuum tank is further provided with symmetrically distributed sealed cylinders, and the piston rod of the sealed cylinder is fixedly installed on the vacuum cover. The vacuum cover is sealed on the vacuum tank through the sealed cylinders, and the vacuum cover and the vacuum tank are fitted with a clearance fit. The vacuum tank is also provided with a vacuum pump body for creating a vacuum chamber.

[0015] As an improved technical solution, the storage cover is detachably installed on the storage tank, the storage tank has a storage cavity for storing helium, and the storage cover is provided with a sealing valve for sealing the storage cavity in the storage tank.

[0016] After adopting the above technical solution, the beneficial effects of this utility model are:

[0017] 1. This utility model, by setting a gear transmission structure driven by a rotary motor, combined with the guiding effect of the slide rail and the guide ring groove, realizes multi-directional rotation of the storage tank and the storage cover, accurately adjusts the docking position of the gas outlet and the electron beam generator, and significantly improves the docking accuracy of the interface.

[0018] 2. This utility model uses a traction cylinder to drive the traction rod, connecting rod, and docking slide in a coordinated manner. Combined with a rotating seat, the traction cylinder rotates adaptively, achieving precise docking of the helium docking connector and the gas injection interface while avoiding interference with the rotational motion.

[0019] 3. This utility model achieves the closure of the vacuum tank by driving the vacuum cover to rise and fall with a sealed cylinder, and seals the storage cavity with a sealed valve on the storage cover, effectively preventing premature helium leakage. Attached Figure Description

[0020] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Among them:

[0021] Figure 1 This is a three-dimensional structural diagram of the helium detection test device for water-cooled systems according to this utility model.

[0022] Figure 2 This is a cross-sectional structural schematic diagram of the helium detection test device for water-cooled systems according to this utility model.

[0023] Figure 3 This is a cross-sectional structural diagram of the vacuum tank and vacuum cover of this utility model.

[0024] Figure 4 This is a schematic diagram of the cooperation structure between the storage tank and the docking mechanism of this utility model.

[0025] Figure 5 This is a schematic diagram of the installation structure of the storage tank and the docking slide of this utility model.

[0026] Figure 6 For the present utility model Figure 2A magnified structural diagram of part A.

[0027] Explanation of reference numerals in the attached figures:

[0028] 1. Vacuum tank; 101. Guide ring groove; 102. Sealed cylinder; 2. Vacuum cover; 201. Electron beam generator; 202. Helium nucleus leak detector; 3. Storage tank; 301. Gas injection port; 4. Storage cover; 401. Gas outlet port; 402. Slide guide rail; 5. Rotating sleeve; 501. Lifting groove; 6. Driven gear; 7. Driven gear; 8. Rotary motor; 9. Rotating seat; 10. Traction rod; 11. Connecting rod; 12. Docking slide; 1201. Helium docking connector; 13. Traction cylinder. Detailed Implementation

[0029] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings. Example 1

[0030] like Figures 1 to 6As shown in the figure, this embodiment provides a helium detection test device suitable for water-cooled systems. This helium detection test device for water-cooled systems includes a vacuum tank 1 and a vacuum cover 2. The vacuum tank 1 has a vacuum chamber for testing. The vacuum cover 2 is equipped with an electron beam generator 201 and a helium nucleus leak detector 202. The vacuum chamber in the vacuum tank 1 also has a storage tank 3 and a storage cover 4. The storage tank 3 has a gas injection port 301, and the storage cover 4 has a gas outlet port 401 adapted to the electron beam generator 201. The bottom end of the vacuum tank 1 has a docking mechanism for docking the gas outlet port 401 and the electron beam generator 201. The docking mechanism includes a rotating sleeve 5 fixedly installed at the bottom end of the storage tank 3. A driven gear 6 is fixedly installed at one end of the rotating sleeve 5 protruding from the vacuum tank 1. The bottom end of the vacuum tank 1 also has a driving gear 7 driven by a rotary motor 8. The driving gear 7 and the driven gear 6 are connected... Wheels 6 mesh with each other, and the rotary motor 8 is fixedly installed below the vacuum tank 1 via the rotating seat 9. The vacuum tank 1 serves as the core load-bearing component of the experiment. The vacuum chamber after the vacuum environment is the main location for helium detection experiments, which can simulate a vacuum environment to ensure the accuracy of helium detection results. The electron beam generator 201 can emit an electron beam to act on helium gas, causing the helium gas to ionize. The helium nucleus leak detector 202 can detect the ionized helium gas, realizing the detection of the water cooling system's sealing performance. The gas injection port 301 on the storage tank 3 is used to inject helium gas into the storage tank 3. The gas outlet port 401 can be docked with the electron beam generator 201 to conduct experiments. The rotary motor 8 drives the drive gear 7 to rotate, and the drive gear 7 drives the driven gear 6 to rotate. In turn, the rotating sleeve 5 drives the storage tank 3 and the storage cover 4 to rotate synchronously, realizing multi-directional docking adjustment between the gas outlet port 401 and the electron beam generator 201, ensuring docking accuracy.

[0031] The rotating sleeve 5 has symmetrically distributed lifting grooves 501, and a traction rod 10 driven by a traction cylinder 13 is slidably connected in the rotating sleeve 5. The traction rod 10 is slidably set along the axial direction of the rotating sleeve 5 through the lifting grooves 501. One end of the traction rod 10 extending into the lifting groove 501 is hinged to a connecting rod 11. The end of the connecting rod 11 away from the traction rod 10 is hinged to a docking slide 12. The docking slide 12 is provided with a helium docking connector 1201 corresponding to the gas injection interface 301. The pipe on the helium docking connector 1201 extends to the outside of the vacuum cover 2 and is connected to the helium tank. The traction cylinder 13 can drive the traction rod 10 to slide along the axial direction of the rotating sleeve 5, and drive the docking slide 12 to move through the connecting rod 11, so as to achieve precise docking or separation of the helium docking connector 1201 and the gas injection interface 301. The lifting grooves 501 provide guidance for the sliding of the traction rod 10 to ensure stable operation.

[0032] One end of the traction rod 10 extending into the lifting groove 501 is fixedly connected to the piston rod of the traction cylinder 13. The traction cylinder 13 is rotatably connected to the bottom end of the vacuum tank 1 via the rotating seat 9. When the rotating sleeve 5 drives the traction rod 10 to rotate, the traction cylinder 13 can rotate adaptively via the rotating seat 9 to avoid interfering with the rotation of the traction rod 10 and ensure that the rotation and lifting actions do not affect each other.

[0033] The inner wall of the vacuum tank 1 is provided with a guide ring groove 101, and the storage cover 4 is provided with symmetrically distributed sliding guide rails 402. One end of the sliding guide rail 402 is fixedly connected to the storage cover 4, and the other end of the sliding guide rail 402 extends into the guide ring groove 101. The storage cover 4 is rotatably set along the center of the vacuum tank 1 through the sliding guide rail 402. The guide ring groove 101 provides rotational guidance for the sliding guide rail 402. The symmetrically distributed sliding guide rails 402 can ensure the stability of the storage cover 4 during rotation and avoid deviation or shaking, further ensuring the accuracy of the test. The guide ring groove 101 is also provided with a vertical groove for easy disassembly of the sliding guide rail 402, so that the sliding guide rail 402 can be taken out from the guide ring groove 101 along this vertical groove after the experiment.

[0034] The end of the docking slide 12 away from the connecting rod 11 is connected to the slide guide rail 402, and the docking slide 12 is slidably connected to the storage cover 4 through the slide guide rail 402. The slide guide rail 402 provides guiding support for the sliding of the docking slide 12, so that the docking slide 12 moves along a fixed trajectory under the drive of the connecting rod 11, further ensuring the accuracy of the docking of the helium docking connector 1201 and the gas injection interface 301.

[0035] The vacuum tank 1 is also equipped with symmetrically distributed sealing cylinders 102, and the piston rod of the sealing cylinder 102 is fixedly installed on the vacuum cover 2. The vacuum cover 2 is sealed on the vacuum tank 1 through the sealing cylinder 102, and the vacuum cover 2 and the vacuum tank 1 are fitted with a clearance fit. The vacuum tank 1 is also equipped with a vacuum pump body for creating a vacuum chamber. The sealing cylinder 102 can drive the vacuum cover 2 to rise and fall, realize the opening and closing of the vacuum tank 1, and ensure the sealing performance. The vacuum tank 1 can extract the air in the vacuum tank 1 through the vacuum pump body to create a vacuum environment that meets the test requirements.

[0036] The storage cover 4 is detached and installed on the storage tank 3. The storage tank 3 has a storage cavity for storing helium, and the storage cover 4 is equipped with a sealing valve for sealing the storage cavity in the storage tank 3. When the storage cover 4 is closed with the storage tank 3, the sealing valve can effectively seal the storage cavity in the storage tank 3, so that the helium in the tank can only be released from the outlet port 401.

[0037] During the sealing test of the water-cooling system using the device for helium nuclei experiments, the device constructs a closed space through the vacuum tank 1 and the vacuum cover 2. The vacuum pump on the vacuum tank 1 is used to extract the internal air to form a vacuum chamber that meets the test requirements. The water-cooling system components to be tested are placed into the storage chamber of the storage tank 3. After helium is introduced into the storage tank 3, the drive gear 7 is driven to rotate by the rotary motor 8, which in turn drives the meshing driven gear 6 and the rotating sleeve 5 to rotate. This causes the storage tank 3 and the storage cover 4 to rotate along the guide ring groove 101 on the inner wall of the vacuum tank 1 with the slide rail 402. The relative position of the gas outlet 401 and the electron beam generator 201 is adjusted to complete the multi-directional docking, thereby ensuring the docking accuracy.

[0038] During this process, the electron beam generator 201 emits an electron beam into the storage cavity through the outlet port 401 after docking. The electron beam acts on the helium gas and ionizes it. If there is a leak in the water cooling system, the ionized helium gas will escape into the vacuum cavity through the leak. At this time, the helium nucleus leak detector 202 on the vacuum cover 2 accurately captures the leaking ionized helium gas, thereby determining that there is a sealing defect in the water cooling system.

[0039] During the helium transfer process, the traction cylinder 13 drives the traction rod 10 to slide axially along the lifting groove 501 of the rotating sleeve 5, and drives the docking slide 12 to move along the slide guide rail 402 through the connecting rod 11, so that the helium docking joint 1201 docks with the gas injection port 301 of the storage tank 3, and helium is introduced into the storage tank 3. During this process, the traction cylinder 13 adapts to the rotation of the rotating seat 9 to avoid interfering with the rotation of the rotating sleeve 5.

[0040] Simultaneously, the sealing cylinder 102 drives the vacuum cover 2 to rise and fall, thereby closing the vacuum tank 1. The storage tank 3 is then closed by the detachable storage cover 4. At this time, the sealing valve on the storage cover 4 seals the storage cavity to prevent premature helium leakage. After the test is completed, the traction cylinder 13 drives the traction rod 10 in the opposite direction, causing the helium docking connector 1201 to separate from the gas injection interface 301. The rotary motor 8 reverses, causing the storage tank 3 and the storage cover 4 to reset and align with the vertical groove on the guide ring groove 101. The sealing cylinder 102 drives the vacuum cover 2 to rise, and the operator opens the storage cover 4 to remove the test component, completing one helium test process.

[0041] It should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A device for helium leak testing suitable for use in a water cooling system, characterized in that: The device includes a vacuum tank (1) and a vacuum cover (2). The vacuum tank (1) is provided with a vacuum chamber for testing. The vacuum cover (2) is provided with an electron beam generator (201) and a helium nucleus leak detector (202). The vacuum chamber in the vacuum tank (1) is also provided with a storage tank (3) and a storage cover (4). The storage tank (3) is provided with a gas injection port (301), and the storage cover (4) is provided with a gas outlet port (401) adapted to the electron beam generator (201). The bottom end of the vacuum tank (1) is provided with a docking mechanism for docking the gas outlet (401) and the electron beam generator (201). The docking mechanism includes a rotating sleeve (5) fixedly installed at the bottom end of the storage tank (3), and a driven gear (6) is fixedly installed at one end of the rotating sleeve (5) protruding from the vacuum tank (1). The bottom end of the vacuum tank (1) is also provided with a driving gear (7) driven by a rotary motor (8), and the driving gear (7) meshes with the driven gear (6). The rotary motor (8) is fixedly installed below the vacuum tank (1) through a rotating seat (9).

2. The helium leak test device for water cooling system according to claim 1, wherein: The rotating sleeve (5) has symmetrically distributed lifting grooves (501), and the rotating sleeve (5) is also slidably connected to a traction rod (10) driven by a traction cylinder (13). The traction rod (10) is slidably arranged along the axial direction of the rotating sleeve (5) through the lifting grooves (501). One end of the traction rod (10) extending to the lifting groove (501) is hinged to a connecting rod (11). The end of the connecting rod (11) away from the traction rod (10) is hinged to a docking slide (12). The docking slide (12) is provided with a helium docking connector (1201) corresponding to the gas injection port (301), and the pipe on the helium docking connector (1201) extends to the outside of the vacuum cover (2) and is connected to the helium tank.

3. The helium leak test device for water cooling system according to claim 2, characterized in that: The traction rod (10) extends into the lifting groove (501) and is fixedly connected to the piston rod of the traction cylinder (13). The traction cylinder (13) is rotatably connected to the bottom of the vacuum tank (1) through the rotating seat (9).

4. The helium leak test apparatus suitable for water cooled system of claim 1, wherein: The inner wall of the vacuum tank (1) is provided with a guide ring groove (101), and the storage cover (4) is provided with symmetrically distributed sliding guide rails (402). One end of the sliding guide rail (402) is fixedly connected to the storage cover (4), and the other end of the sliding guide rail (402) extends into the guide ring groove (101). The storage cover (4) is rotated along the center of the vacuum tank (1) through the sliding guide rail (402).

5. The helium leak test apparatus for water cooled system according to claim 2, wherein: The end of the docking slide (12) away from the connecting rod (11) is connected to the slide guide rail (402), and the docking slide (12) is slidably connected to the storage cover (4) through the slide guide rail (402).

6. The helium leak test apparatus suitable for water cooled system of claim 1, wherein: The vacuum tank (1) is also provided with symmetrically distributed sealed cylinders (102), and the piston rod of the sealed cylinder (102) is fixedly installed on the vacuum cover (2), and the vacuum cover (2) is sealed on the vacuum tank (1) by the sealed cylinder (102), and the vacuum cover (2) and the vacuum tank (1) are installed with a clearance fit. The vacuum tank (1) is also provided with a vacuum pump body for creating a vacuum chamber.

7. The helium leak test apparatus for water cooled system according to claim 6, wherein: The storage cover (4) is disassembled and installed on the storage tank (3). The storage tank (3) is provided with a storage cavity for storing helium, and the storage cover (4) is provided with a sealing valve for sealing the storage cavity in the storage tank (3).

Images