CN117232750B - Jet vacuumizing leak detection device - Google Patents
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- CN117232750B CN117232750B CN202311510242.0A CN202311510242A CN117232750B CN 117232750 B CN117232750 B CN 117232750B CN 202311510242 A CN202311510242 A CN 202311510242A CN 117232750 B CN117232750 B CN 117232750B
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- 238000001514 detection method Methods 0.000 title claims abstract description 17
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 103
- 239000008213 purified water Substances 0.000 claims abstract description 24
- 238000007789 sealing Methods 0.000 claims abstract description 23
- 238000005086 pumping Methods 0.000 claims abstract description 6
- 238000009792 diffusion process Methods 0.000 claims description 5
- 238000009434 installation Methods 0.000 claims description 4
- 230000000694 effects Effects 0.000 description 11
- 239000003570 air Substances 0.000 description 7
- 238000000034 method Methods 0.000 description 7
- 238000012360 testing method Methods 0.000 description 4
- 230000001360 synchronised effect Effects 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 2
- 241000894006 Bacteria Species 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 239000012080 ambient air Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000000356 contaminant Substances 0.000 description 1
- 208000002925 dental caries Diseases 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 239000007791 liquid phase Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000009489 vacuum treatment Methods 0.000 description 1
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Abstract
The invention discloses a jet vacuum pumping leakage detection device, which relates to the technical field of vacuum pumping and comprises a vacuum box, a purified water tank and a high-pressure water pump which are arranged on a bottom plate, wherein a vacuum jet device is arranged on the vacuum box and connected with the high-pressure water pump, a sealing cover is arranged at the upper end of the vacuum box, a movable basin is connected in a sliding manner in the vertical direction in the vacuum box, two sealing cavities which are not communicated with each other are formed in the vacuum box through the movable basin, purified water is filled in the movable basin, a product is soaked in the purified water, two clamping plates which are symmetrically distributed in the horizontal direction are arranged above the movable basin, when the vacuum jet device works, the movable basin slides upwards in the vacuum box, and the two clamping plates synchronously move in opposite directions to clamp the product. According to the invention, when vacuumizing is performed, the forming speed of the vacuum is accelerated through the upward movement of the movable basin, and the fixing limit of the clamping plate on the product is gradually increased along with the vacuumizing, so that the stability and the safety of the product are ensured.
Description
Technical Field
The invention relates to the technical field of vacuumizing, in particular to a jet vacuumizing leakage detection device.
Background
The vacuum leak detection box is a common detection tool used for detecting the sealing performance of products. Certain products often need to maintain a certain seal during use to ensure proper operation and to prevent the ingress of bacteria or other contaminants. The vacuum leak detection box is used for testing whether the sealing performance of the product is qualified or not. The vacuum leak detection box works in the principle that a low-pressure environment is created, products are placed into the box, and vacuumizing treatment is carried out. If the product is well sealed, the vacuum will not or only slowly drop. If there is leakage or poor sealing of the product, the vacuum will drop rapidly, and a problem will be detected.
Jet evacuation is a technical method for extracting air by utilizing airflow power generated by high-speed jet. The kinetic energy generated by the high-pressure jet flow is converted into negative pressure, and ambient air is extracted, so that a vacuum or a near-vacuum environment is achieved.
When the vacuum leak detection box is subjected to vacuumizing inspection, purified water is usually added in the box body in order to protect the product. The pure water can avoid the direct contact of the product with other testing equipment, reduce the mechanical damage to the product and ensure the safety and reliability in the testing process, but in order to avoid the water in the box body from entering the vacuumizing system, a longer distance exists between the water surface and the vacuumizing air suction port, and the vacuumizing efficiency is reduced due to the existence of air in the longer distance; when the pure water is subjected to negative pressure, an acting force is applied to the product placed in the pure water, so that the product is possibly stressed unevenly, displacement or deformation is generated, and even the product is collided to cause damage; based on the above, the invention provides a jet vacuumizing leakage detection device.
Disclosure of Invention
The invention aims to provide a jet vacuumizing leakage detection device so as to solve the problems in the background art.
In order to achieve the above purpose, the technical scheme adopted by the invention is as follows:
the utility model provides a efflux evacuation leak hunting device, including installing vacuum box on the bottom plate, pure water tank and high-pressure water pump, install the vacuum ejector on the vacuum box, the vacuum ejector links to each other with high-pressure water pump, sealed lid is installed to the upper end of vacuum box, the inside of vacuum box is followed vertical direction sliding connection and is had the activity basin, the inside of vacuum box forms two sealed cavitys that are not mutually communicated through the activity basin, annotate the pure water in the activity basin, the product soaks in the pure water, the top of activity basin is provided with two splint along horizontal direction symmetric distribution, the vacuum ejector during operation, the activity basin upwards slides in the inside of vacuum box, and two splint synchronous opposite movement form the centre gripping to the product.
Preferably, two side plates which are symmetrical in front-back direction are arranged at the upper end of the movable basin, two through inclined grooves are formed in one end of each side plate, the inclined grooves are obliquely arranged in a mode of being high outside and low inside, the center of each side plate is taken as the inside, the two ends of each side plate are taken as the outside reference direction, and the two side plates are symmetrically arranged;
horizontal plates are arranged on the side walls of the vacuum box, which correspond to the two side plates respectively, the horizontal plates are arranged in parallel with the axial direction of the movable basin, and a through horizontal groove is formed at one end of each horizontal plate;
a driving rod is connected between the two oblique grooves which are symmetrical front and back in a sliding way, two ends of the driving rod are respectively connected with the two horizontal grooves in a sliding way, and the circumferential surface of the driving rod is fixedly connected with the clamping plate.
Preferably, two sliding rods are arranged on the circumferential surface of the driving rod, and the two sliding rods respectively penetrate through the two horizontal grooves movably and extend to the outer side of the vacuum box.
Preferably, a connecting rod is fixedly installed between the two sliding rods on the same side, a plurality of installation frames which are parallel to the height direction of the vacuum box are installed on the circumferential surface of the connecting rod, a roller is installed at one end of the installation frame, which is far away from the connecting rod, and the upper end surfaces of the roller and the sealing cover are positioned on the same horizontal line.
Preferably, the clamping plate is provided with a through hole.
Preferably, the sealing cover is provided with a pressure sensor.
Preferably, the water inlet end of the high-pressure water pump is connected with a water inlet pipe, the other end of the water inlet pipe extends into the purified water tank, the water outlet end of the high-pressure water pump is connected with a first connecting pipe, a first vacuum valve is installed on the first connecting pipe, the other end of the first connecting pipe is connected with a vacuum ejector, a vacuum suction inlet of the vacuum ejector is connected with a second connecting pipe, a second vacuum valve is installed on the second connecting pipe, the other end of the second connecting pipe is communicated with the vacuum tank, a water outlet pipe is installed at the other end of the vacuum ejector, and the other end of the water outlet pipe extends into the purified water tank.
Preferably, a nozzle is arranged at the water inlet of the vacuum ejector, a diffusion chamber is arranged at the water outlet of the vacuum ejector, and the diameter of the nozzle is smaller than that of the first connecting pipe.
Compared with the prior art, the invention has the following beneficial effects:
(1) According to the invention, the inner cavity of the vacuum box is divided into the upper area and the lower area by the movable basin, when the vacuum box is vacuumized, the movable basin is pushed to move upwards by the pressure difference force from the lower part, so that the volume of the upper space is reduced, the upper gas is compressed and discharged, the residue of the gas in the vacuum process is reduced, the gas residue and accumulation are avoided, the formation speed of the vacuum can be accelerated, and the vacuumizing efficiency is improved.
(2) The splint and the product are not contacted under initial condition, and the pressure of water to the product is less relatively this moment, and along with the increase of movable disk top negative pressure, the effort that water applys to the product also increases, and this leads to splint to move towards the direction that the product is close to gradually, and once the effort that water applys to the product is big enough, splint and product contact and centre gripping, ensure the stability and the security of product.
(3) Through setting up gyro wheel and splint synchronous action, when splint orientation is close to the direction motion of product, the gyro wheel also moves towards sealed lid in step, and when splint and product contact, the gyro wheel also just moves to sealed top of lid, forms to press sealed lid, has improved the connection fastness between sealed lid and the vacuum chamber.
(4) The existence of purified water on the movable basin can form a water seal, so that gas in the space below the movable basin is prevented from entering the space above the movable basin, and the maintenance of vacuum degree and the accurate test of sealing performance are ensured; the product is soaked in purified water, so that the surface of the product can be protected from being damaged, the product can be effectively prevented from being contacted with air, and the risk of oxidization or pollution is reduced.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate and together with the embodiments of the invention and do not constitute a limitation to the invention, and in which:
FIG. 1 is a schematic diagram of a whole vacuum pumping apparatus according to an embodiment of the present invention;
FIG. 2 is a schematic view of another view of the whole vacuum pumping apparatus according to the present invention;
FIG. 3 is a schematic cross-sectional view of a vacuum box according to an embodiment of the present invention;
FIG. 4 is a schematic view of the structure of the movable basin according to an embodiment of the present invention;
FIG. 5 is a schematic view showing an initial state of the clamping plate according to the embodiment of the present invention;
FIG. 6 is a schematic view showing the movement state of the clamping plate according to the embodiment of the invention;
FIG. 7 is a schematic view of a clamping plate according to an embodiment of the present invention;
fig. 8 is a schematic cross-sectional view of a vacuum ejector according to an embodiment of the present invention.
In the figure: 1. a bottom plate; 3. a purified water tank; 31. a slide rail; 4. a high pressure water pump; 6. a water inlet pipe; 7. a first connection pipe; 8. a first vacuum valve; 10. a second connection pipe; 11. a second vacuum valve; 12. a water outlet pipe; 13. a pressure sensor; 14. sealing cover;
2. a vacuum box; 21. a movable basin; 22. overlapping edges; 23. a side plate; 24. a slide block; 25. an inclined groove; 26. a driving rod; 27. a clamping plate; 271. a through hole; 28. a support frame; 29. a horizontal plate; 30. a horizontal slot;
261. a slide bar; 262. a connecting rod; 263. a mounting frame; 264. a roller;
9. a vacuum ejector; 91. a nozzle; 92. a diffusion chamber.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the invention. The components of the embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations. Thus, the following detailed description of the embodiments of the invention, as presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be made by a person skilled in the art without making any inventive effort, are intended to be within the scope of the present invention.
Referring to fig. 1-8, the present embodiment provides a jet vacuumizing leak detection device, including a vacuum box 2 installed on a base plate 1, a purified water tank 3 and a high pressure water pump 4, wherein a water inlet end of the high pressure water pump 4 is connected with a water inlet pipe 6, the other end of the water inlet pipe 6 extends into the purified water tank 3, a water outlet end of the high pressure water pump 4 is connected with a first connecting pipe 7, a first vacuum valve 8 is installed on the first connecting pipe 7, a vacuum ejector 9 is installed at the other end of the first connecting pipe 7, a nozzle 91 is arranged at a water inlet of the vacuum ejector 9, a diffusion chamber 92 is arranged at a water outlet of the vacuum ejector 9, the diameter of the nozzle 91 is smaller than that of the first connecting pipe 7, purified water is accelerated after entering the nozzle 91 through the first connecting pipe 7, a high-speed water flow is formed, the high-speed water flow passes through the diffusion chamber 92 to form a entrainment effect, a second connecting pipe 10 is connected to a vacuum suction inlet of the vacuum ejector 9, a second vacuum valve 11 is installed on the second connecting pipe 10, the other end of the second connecting pipe 10 is communicated with the vacuum box 2, a pressure sensor 12 is installed at the other end of the vacuum ejector 9, a water outlet pipe 12 is installed at the other end of the vacuum ejector 9, a pressure sensor is installed in the vacuum box 2, and a pressure sensor 13 is installed in the vacuum box 2 is sealed by a pressure sensor is installed in the vacuum box 2, and a pressure sensor 13 is installed in the vacuum box is sealed;
the inside of vacuum box 2 is along vertical direction sliding connection having movable basin 21, and the surface of movable basin 21 is provided with overlap 22, and overlap 22 assorted support frame 28 is installed to the inner chamber lower wall of vacuum box 2, erects movable basin 21 in the inside of vacuum box 2 through support frame 28, pours into pure still water to the water line position on movable basin 21, in this embodiment, sets up the upper edge of movable basin 21 to the water line, and the inner chamber of movable basin 21 is filled with pure water promptly, soaks the product in pure water again. When the product is placed in purified water for vacuumizing, the flow and impact force of the water can be utilized to help clean pollutants on the surface, and the purified water can play a role in removing dust, dirt or residues on the surface, so that the surface of the product is cleaner.
The pure water in the pure water tank 3 is pumped into the vacuum ejector 9 through the high-pressure water pump 4, jet flow is formed at the outlet of the vacuum ejector 9, entrainment flow is generated, and under the entrainment effect, air around the outlet of the vacuum ejector 9 is continuously sucked away, so that the pressure in the vacuum box 2 is reduced to be lower than the atmospheric pressure, and a certain vacuum degree is formed.
The movable basin 21 separates the inner chamber of vacuum box 2 into upper and lower two regions, and when the evacuation, the atmospheric pressure of movable basin 21 top reduces, and the atmospheric pressure of below is higher relatively, according to the differential pressure force principle that the atmospheric pressure difference produced, movable basin 21 can receive the differential pressure force from the below, promotes movable basin 21 upward movement, reduces the volume in top space to compress and discharge the gas of top, reduce the gas and remain in the vacuum in-process, avoid gas to remain and gather, can also accelerate the formation speed of vacuum, improved vacuum efficiency.
The product is soaked in purified water to play a flexible protection role, so that damage to the product is reduced, but when the high-pressure water pump 4 generates a jet effect and starts to pump air, the pressure in the vacuum box 2 is gradually reduced to form a negative pressure environment, under the negative pressure environment, the water level on the movable basin 21 is increased, the pressure of water on the product is increased by the water level increase, and an upward acting force is applied to the product, so that the product is possibly displaced, and then damaged or other adverse effects are caused among the products; in order to fix the product and ensure the stability and safety of the product, two clamping plates 27 which are symmetrically distributed along the horizontal direction are arranged above the movable basin 21 in the embodiment; when the movable basin 21 moves upwards, the two clamping plates 27 move synchronously and mutually close until the clamping plates 27 are contacted with the product, and the clamping and fixing are formed on the product, so that the product is kept stable in a vacuum environment, meanwhile, the products are kept relatively static, the mutual collision is effectively prevented, the damage risk to the product can be reduced to the greatest extent, and the safety and smooth performance of the vacuum process are ensured.
Based on the above scheme, the present embodiment uses the acting force generated when the movable basin 21 moves upwards as the driving force, so as to realize the synchronous movement of the two clamping plates 27, specifically: the upper end of the movable basin 21 is provided with two side plates 23 which are symmetrical in front-back, one end of each side plate 23 is provided with two through inclined grooves 25, each inclined groove 25 is obliquely arranged in a mode of being high outside and low inside, the center of each side plate 23 is taken as the inside, the two ends of each side plate 23 are taken as the outside reference direction, and the two side plates 23 are symmetrically arranged; horizontal plates 29 are arranged on the side walls of the vacuum box 2, which correspond to the two side plates 23 respectively, the horizontal plates 29 are arranged in parallel with the axial direction of the movable basin 21, and a through horizontal groove 30 is formed at one end of each horizontal plate 29; a driving rod 26 is connected between the two front-back symmetrical inclined grooves 25 in a sliding way, two ends of the driving rod 26 are respectively connected with the two horizontal grooves 30 in a sliding way, and the circumferential surface of the driving rod 26 is fixedly connected with the clamping plate 27. When the movable basin 21 moves upwards, the movable basin 21 drives the side plate 23 to move upwards, the side plate 23 drives the driving rod 26 to move towards the direction approaching the movable basin 21 through the inclined groove 25, and meanwhile, the driving rod 26 is limited by the horizontal groove 30, so that the driving rod 26 can only do linear movement along the horizontal groove 30 towards the direction approaching the movable basin 21, namely, the driving rod 26 drives the clamping plate 27 to move towards the direction approaching the movable basin 21.
In order to improve the stability of the upward movement of the side plate 23, in this embodiment, the two ends of the side plate 23 are both provided with sliding blocks 24, and the two sliding blocks 24 are both slidably connected with a sliding rail 31, and the sliding rail 31 is fixedly connected with the side wall of the vacuum box 2. The sliding rail 31 also limits the upward movement stroke of the movable tub 21, and prevents purified water in the movable tub 21 from flowing into the second connection pipe 10.
In the vertical direction, during initial state, splint 27 and product contact, and at this moment, the pressure of the water that the product received is less, and along with the increase of activity basin 21 top negative pressure, the effort that water applyed the product increases, and at this moment, splint 27 moves towards the direction that is close to the product gradually, and when the effort that water applyed the product made the product produce the motion, splint 27 and product contact, fix the product, prevent that the product from taking place the displacement. That is, with the vacuum pumping, the fixing of the product is gradually increased, so that stable support can be provided on the premise of ensuring the safety of the product, excessive movement of the product due to vacuum force is prevented, and the integrity of the product is protected.
When the driving rod 26 moves in the horizontal groove 30 and the inclined groove 25, the driving rod 26 may rotate, and then the clamping plate 27 rotates, so that the contact area between the clamping plate 27 and a product is reduced, in order to avoid overturning of the clamping plate 27 in the moving process, in this embodiment, two sliding rods 261 are mounted on the circumferential surface of the driving rod 26, the two sliding rods 261 respectively movably penetrate through the two horizontal grooves 30 and extend to the outer side of the vacuum box 2, and the driving rod 26 cannot overturn in the moving process due to the guiding action of the two sliding rods 261, so that the contact area between the clamping plate 27 and the product is ensured not to be reduced.
When the clamping plate 27 moves in the purified water, the water can apply a resistance to the clamping plate 27, and in order to reduce the resistance of the water, in this embodiment, the clamping plate 27 is provided with the through holes 271, and the purified water can reduce the resistance applied to the clamping plate 27 by passing through the clamping plate 27.
In this embodiment, a connecting rod 262 is fixedly installed between two sliding rods 261 on the same side, a plurality of mounting frames 263 which are parallel to the height direction of the vacuum box 2 are installed on the circumferential surface of the connecting rod 262, in this embodiment, the mounting frames 263 are in hollow L-shaped structures, a roller 264 is installed at one end of each mounting frame 263 far away from the connecting rod 262, the upper end surfaces of the roller 264 and the sealing cover 14 are located on the same horizontal line, and in this embodiment, a rounding structure is arranged on one side of the sealing cover 14, which contacts with the roller 264. When the clamping plate 27 moves towards the direction approaching to the product, the roller 264 moves towards the sealing cover 14 synchronously, and when the clamping plate 27 contacts with the product, the roller 264 moves just above the sealing cover 14 to press the sealing cover 14, so that the connection firmness between the sealing cover 14 and the vacuum box 2 is improved.
In this embodiment, the specific steps of vacuumizing the product are as follows:
s1, preparing a vacuum box 2: ensuring that the vacuum box 2 has the capability of bearing high pressure of-0.1 MPA and ensuring that the sealing cover 14 can be completely sealed;
s2, placing the product into a vacuum box 2: placing the product to be subjected to vacuum treatment into the movable basin 21;
s3, injecting purified water: purified water is injected into the movable basin 21 until reaching a predetermined water line position;
s4, completely covering the sealing cover 14 to ensure the sealing performance of the vacuum box 2;
s5, sequentially opening the first vacuum valve 8 and the second vacuum valve 11 to ensure air tightness;
s6, starting a water pump: after the vacuum valve is opened, waiting for 2 seconds, then starting the high-pressure water pump 5, and generating a jet effect by the high-pressure water pump 5 to enable the vacuum box 2 to generate vacuum;
s7, monitoring pressure: detecting the pressure condition in the vacuum box 2 by the pressure sensor 13;
s8, achieving the target vacuum degree: when the pressure sensor 13 detects that the vacuum degree reaches more than-0.95 MPA, the high-pressure water pump 5 is closed, and the second vacuum valve 11 and the first vacuum valve 8 are closed; the pure water still remains in the liquid phase when the target vacuum degree is reached, and no water vapor is formed.
S9, vacuumizing is completed: waiting for about 10 seconds, opening the second vacuum valve 11 to restore the inside of the vacuum box 2 to the normal pressure state;
s10, opening a sealing cover: opening the sealing cover 14, and taking out the vacuumized product;
s11, performing the following operation: and continuously repeating the steps, and placing the next batch of products into a vacuum box 2 for vacuumizing.
In the description of the present invention, the terms "first," "second," "another," "yet another" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more features. In the description of the embodiments of the present invention, the meaning of "plurality" is two or more, unless explicitly defined otherwise.
In the description of the present invention, it should be noted that, unless explicitly specified and limited otherwise, the terms "connected," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art. Furthermore, in the description of the present invention, unless otherwise indicated, the meaning of "a plurality" is two or more.
While embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that: many changes, modifications, substitutions and variations may be made to the embodiments without departing from the spirit and principles of the invention, the scope of which is defined by the claims and their equivalents.
Claims (6)
1. Jet vacuum pumping leak hunting device, including installing vacuum tank (2), pure water tank (3) and high-pressure water pump (4) on bottom plate (1), install vacuum ejector (9) on vacuum tank (2), vacuum ejector (9) link to each other with high-pressure water pump (4), sealed lid (14), its characterized in that are installed to the upper end of vacuum tank (2): the inside of the vacuum box (2) is connected with a movable basin (21) in a sliding manner along the vertical direction, two sealing cavities which are not communicated with each other are formed in the vacuum box (2) through the movable basin (21), purified water is filled on the movable basin (21), products are soaked in the purified water, two clamping plates (27) which are symmetrically distributed along the horizontal direction are arranged above the movable basin (21), when the vacuum ejector (9) works, the movable basin (21) slides upwards in the vacuum box (2), and the two clamping plates (27) synchronously move in opposite directions to clamp the products;
two side plates (23) which are symmetrical in front-back direction are arranged at the upper end of the movable basin (21), two through inclined grooves (25) are formed in one end of each side plate (23), the inclined grooves (25) are obliquely arranged in an outer high and inner low mode, the center of each side plate (23) is taken as the inner side, two ends of each side plate (23) are taken as the outer reference direction, and the two side plates (23) are symmetrically arranged;
horizontal plates (29) are arranged on the side walls of the vacuum box (2) corresponding to the two side plates (23), the horizontal plates (29) are arranged in parallel with the axial direction of the movable basin (21), and a through horizontal groove (30) is formed at one end of each horizontal plate (29);
a driving rod (26) is connected between the two front and back symmetrical oblique grooves (25) in a sliding way, two ends of the driving rod (26) are respectively connected with the two horizontal grooves (30) in a sliding way, and the circumferential surface of the driving rod (26) is fixedly connected with the clamping plate (27);
the water inlet end of the high-pressure water pump (4) is connected with a water inlet pipe (6), the other end of the water inlet pipe (6) extends into the purified water tank (3), the water outlet end of the high-pressure water pump (4) is connected with a first connecting pipe (7), a first vacuum valve (8) is installed on the first connecting pipe (7), the other end of the first connecting pipe (7) is connected with a vacuum ejector (9), a second connecting pipe (10) is connected with a vacuum suction inlet of the vacuum ejector (9), a second vacuum valve (11) is installed on the second connecting pipe (10), the other end of the second connecting pipe (10) is communicated with the vacuum tank (2), a water outlet pipe (12) is installed at the other end of the vacuum ejector (9), and the other end of the water outlet pipe (12) extends into the purified water tank (3).
2. The jet evacuation leak detection apparatus of claim 1, wherein: two sliding rods (261) are arranged on the circumferential surface of the driving rod (26), and the two sliding rods (261) respectively penetrate through the two horizontal grooves (30) movably and extend to the outer side of the vacuum box (2).
3. The jet evacuation leak detection apparatus as defined in claim 2, wherein: a connecting rod (262) is fixedly installed between the two sliding rods (261) on the same side, a plurality of installation frames (263) which are parallel to the height direction of the vacuum box (2) are installed on the circumferential surface of the connecting rod (262), a roller (264) is installed at one end, far away from the connecting rod (262), of the installation frames (263), and the upper end faces of the roller (264) and the sealing cover (14) are located on the same horizontal line.
4. The jet evacuation leak detection apparatus of claim 1, wherein: the clamping plate (27) is provided with a through hole (271).
5. The jet evacuation leak detection apparatus of claim 1, wherein: the sealing cover (14) is provided with a pressure sensor (13).
6. The jet evacuation leak detection apparatus of claim 1, wherein: a nozzle (91) is arranged at the water inlet of the vacuum ejector (9), a diffusion chamber (92) is arranged at the water outlet of the vacuum ejector (9), and the diameter of the nozzle (91) is smaller than that of the first connecting pipe (7).
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| CN202311510242.0A CN117232750B (en) | 2023-11-14 | 2023-11-14 | Jet vacuumizing leak detection device |
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| CN202311510242.0A CN117232750B (en) | 2023-11-14 | 2023-11-14 | Jet vacuumizing leak detection device |
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| CN117232750B true CN117232750B (en) | 2024-01-30 |
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| CN2748895Y (en) * | 2004-11-11 | 2005-12-28 | 辽河石油勘探局 | Vacuum leakage detector on gas jet fluid tank bottom |
| CN102330666A (en) * | 2011-09-08 | 2012-01-25 | 洛阳兰迪玻璃机器股份有限公司 | Vacuum system protective device, method and vacuum glass vacuum-pumping system |
| CN203441709U (en) * | 2013-06-27 | 2014-02-19 | 中国地质大学（北京） | Brazing sintering chamber vacuum-pumping system |
| KR20170038550A (en) * | 2015-09-30 | 2017-04-07 | 양락운 | Leakage test apparatus |
| CN213628198U (en) * | 2020-10-12 | 2021-07-06 | 宁夏长荣环保科技有限公司 | Jet type gas negative pressure vacuum pumping equipment |
| CN217878203U (en) * | 2022-05-17 | 2022-11-22 | 南通斯立特智能科技有限公司 | XiLin bottle leakproofness detection device |
| CN218180234U (en) * | 2022-09-26 | 2022-12-30 | 上海天普汽车零部件有限公司 | Vacuum box helium leak detection system |
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