CN112697358A - Compressor valve block leak hunting testing arrangement - Google Patents
Compressor valve block leak hunting testing arrangement Download PDFInfo
- Publication number
- CN112697358A CN112697358A CN202110035549.4A CN202110035549A CN112697358A CN 112697358 A CN112697358 A CN 112697358A CN 202110035549 A CN202110035549 A CN 202110035549A CN 112697358 A CN112697358 A CN 112697358A
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- Prior art keywords
- air
- seat
- valve
- plate
- nitrogen
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M3/00—Investigating fluid-tightness of structures
- G01M3/02—Investigating fluid-tightness of structures by using fluid or vacuum
- G01M3/26—Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M3/00—Investigating fluid-tightness of structures
- G01M3/02—Investigating fluid-tightness of structures by using fluid or vacuum
- G01M3/26—Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors
- G01M3/28—Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors for pipes, cables or tubes; for pipe joints or seals; for valves ; for welds
- G01M3/2876—Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors for pipes, cables or tubes; for pipe joints or seals; for valves ; for welds for valves
Abstract
The invention discloses a leak detection testing device for a compressor valve block, which comprises a base, wherein the upper end surface of the base is fixedly connected with a top plate through symmetrical vertical plates, the upper end surface of the base is fixedly connected with a bottom plate, the bottom plate is fixedly connected with the top plate through an upright post, a moving plate is slidably connected onto the upright post, a cylinder is arranged on the top plate and is connected with the moving plate, the end surfaces of the bottom plate and the moving plate are fixedly connected with gas seats, the opposite side surfaces of the two gas seats are respectively provided with a lower valve seat and an upper valve seat, the side surfaces of the two gas seats are respectively communicated with a nitrogen system and a vacuum system, and the side surfaces of; according to the invention, the upper valve seat and the lower valve seat are hermetically arranged on the opposite side surfaces of the two gas seats, the whole equipment is subjected to airtightness detection by adopting vacuum pump for vacuumizing, nitrogen is injected, the nitrogen content is detected by using a nitrogen detector, and further the airtightness of the valve plate is detected.
Description
Technical Field
The invention relates to the technical field of valve plate detection, in particular to a compressor valve plate leak detection testing device.
Background
The compressor valve block is an important component for realizing the air suction process and the air exhaust process of the compressor, the function of controlling the flow direction of gas, the valve block of the compressor comprises an air suction valve block and an air exhaust valve block, the air suction valve block and the air exhaust valve block are arranged on two sides of the valve plate and used for air suction and air exhaust, an air suction hole and an air exhaust hole are formed in the valve plate, the air suction hole and the air exhaust hole are blocked by the air suction valve block and the air exhaust valve block correspondingly, whether the compressor can normally run or not is determined by the air tightness of the air suction valve block, the air tightness of the compressor valve block needs to be detected, only simple equipment can be used for rough detection in actual production, the air tightness detection is carried out on the compressor valve block by the aid of the current non-.
Disclosure of Invention
The invention mainly aims to provide a leak detection testing device for a valve block of a compressor, which is characterized in that an upper valve seat and a lower valve seat are hermetically arranged on the opposite side surfaces of two gas seats, the whole device is subjected to gas tightness detection by adopting vacuum pumping, then a valve group is placed, nitrogen is injected after the gas tightness detection is carried out by vacuumizing, a nitrogen detector is used for detecting the content of the nitrogen, and further the gas tightness of the valve block is detected.
In order to achieve the purpose, the invention adopts the technical scheme that: the utility model provides a compressor valve block leak hunting testing arrangement, includes the base, the up end of base passes through the riser fixed connection roof of symmetry, the up end of base is located the below fixed connection bottom plate of roof, the up end four corners of bottom plate passes through stand fixed connection roof, the sliding connection movable plate on the stand, be equipped with the slide opening with stand sliding connection on the movable plate, install the cylinder on the roof, the cylinder is connected with the movable plate, the up end of bottom plate and the equal fixed connection gas holder of the lower terminal surface of movable plate, the downside the disk seat under the end-to-end mounting of gas holder, the upside the disk seat is installed to the lower terminal surface of gas holder, two the side of gas holder communicates nitrogen gas system and vacuum system respectively, two vacuum table and nitrogen gas detector are all installed to the side of gas holder.
Preferably, the vacuum system comprises a vacuum pump, a vacuum tube and a first reversing valve, the vacuum pump is connected with the two vacuum tubes through the first reversing valve, and the two vacuum tubes are respectively communicated with the two air seats.
Preferably, the nitrogen system comprises a nitrogen source, two nitrogen pipes and a second reversing valve, wherein the nitrogen source is connected with the two nitrogen pipes through the second reversing valve, and the two nitrogen pipes are respectively communicated with the two gas seats.
Preferably, the inside of the air seat is divided into three air cavities by two partition walls, the partition walls are provided with vent holes for communicating adjacent air cavities, the two opposite end faces of the air seat are provided with air inlet holes, and the vacuum meter, the nitrogen detector, the nitrogen pipe and the vacuum pipe are communicated with the air cavities.
Preferably, the upper end face of the lower valve seat is provided with a valve seat placing groove, the middle of the valve seat placing groove is provided with an exhaust valve plate air inlet groove, the exhaust valve plate air inlet groove is communicated with an exhaust valve plate air inlet pipe, the exhaust valve plate air inlet pipe and the lower valve seat are connected into a whole, and the exhaust valve plate air inlet pipe is connected with an air inlet hole of the lower side air seat in a sealing mode.
Preferably, an air inlet groove is formed in the lower end face of the upper valve seat, an air inlet cavity communicated with the air inlet groove is formed in the upper valve seat, the air inlet cavity is communicated with an air inlet pipe of the air inlet valve plate, the air inlet pipe of the air inlet valve plate and the upper valve seat are integrally arranged, and the air inlet pipe of the air inlet valve plate is connected with an air inlet hole of the upper air seat in a sealing mode.
Preferably, two the side four corners department that the gas holder is relative all is equipped with spacing post, go up the disk seat and all be equipped with the spacing groove that corresponds with spacing post with the four corners of the side that lower disk seat is close to the gas holder.
Preferably, two opposite side surfaces of the air seat are fixedly connected with a first sealing gasket, and the lower end surface of the upper valve seat and the upper end surface of the lower valve seat are fixedly connected with a second sealing gasket.
Compared with the prior art, the invention has the following beneficial effects: according to the invention, the upper valve seat and the lower valve seat are hermetically arranged on the opposite side surfaces of the two gas seats, the whole equipment is subjected to airtightness detection by adopting vacuum pump for vacuumizing, then the valve group is placed, nitrogen is injected after airtightness detection is carried out by vacuumizing, a nitrogen detector is used for detecting the content of nitrogen, and further the airtightness of the valve plate is detected.
Drawings
FIG. 1 is a perspective view of the overall structure of the present invention;
FIG. 2 is a perspective view of another perspective of the overall structure of the present invention;
FIG. 3 is a perspective view of a portion of the present invention;
FIG. 4 is a perspective view of the connection of the air seat with the upper and lower valve seats of the present invention;
FIG. 5 is a schematic cross-sectional view of the connection of the lower valve seat and the air seat of the present invention;
FIG. 6 is a schematic cross-sectional view of the connection of the upper valve seat and the air seat of the present invention;
fig. 7 is a perspective view of the compressor valve assembly of the present invention.
In the figure: 1. a base; 2. a vertical plate; 3. a top plate; 4. a base plate; 5. a column; 6. a slide hole; 7. moving the plate; 8. a cylinder; 9. an air seat; 91. a partition wall; 92. an air cavity; 93. a vent hole; 94. an air inlet; 10. a lower valve seat; 11. an upper valve seat; 12. a vacuum gauge; 13. a nitrogen detector; 14. a vacuum pump; 15. a vacuum tube; 16. a first reversing valve; 17. a nitrogen source; 18. a nitrogen gas pipe; 19. a second reversing valve; 20. a valve seat placing groove; 21. an air inlet groove of an exhaust valve plate; 22. an air inlet pipe of an air outlet valve plate; 23. an air inlet groove of the air suction valve plate; 24. an air inlet cavity; 25. an air inlet pipe of an air suction valve plate; 26. a limiting column; 27. a limiting groove; 28. a first sealing gasket; 29. a second sealing gasket; 30. a compressor valve bank; 100. an air suction valve plate; 200. a valve seat; 300. an exhaust valve plate; 400. a suction hole; 500. an exhaust hole; 600. a first through hole; 700. and a second through hole.
Detailed Description
In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further described with the specific embodiments.
As shown in fig. 1-6, a leak detection testing device for a compressor valve plate comprises a base 1, wherein the upper end surface of the base 1 is fixedly connected with a top plate 3 through symmetrical vertical plates 2, the upper end surface of the base 1 is positioned below the top plate 3 and is fixedly connected with a bottom plate 4, four corners of the upper end surface of the bottom plate 4 are fixedly connected with the top plate 3 through upright posts 5, the upright post 5 is connected with a moving plate 7 in a sliding way, the moving plate 7 is provided with a sliding hole 6 which is connected with the upright post 5 in a sliding way, install cylinder 8 on roof 3, cylinder 8 is connected with movable plate 7, the equal fixed connection gas seat 9 of the up end of bottom plate 4 and the lower terminal surface of movable plate 7, the downside valve seat 10 under the terminal surface installation of gas seat 9, the upside valve seat 11 is installed to the lower terminal surface of gas seat 9, two the side of gas seat 9 communicates nitrogen gas system and vacuum system respectively, two vacuum meter 12 and nitrogen gas detector 13 are all installed to the side of gas seat 9.
In this embodiment, the vacuum system includes a vacuum pump 14, a vacuum tube 15 and a first reversing valve 16, the vacuum pump 14 is connected to the two vacuum tubes 15 through the first reversing valve 16, the two vacuum tubes 15 are respectively communicated with the two air seats 9, and the vacuum tubes 15 are flexible tubes, so that when the moving plate 7 moves up and down, the vacuum tubes 15 are ensured to be communicated with the air seats 9.
In this embodiment, the nitrogen system includes a nitrogen source 17, nitrogen pipes 18 and a second reversing valve 19, the nitrogen source 17 is connected to the two nitrogen pipes 18 through the second reversing valve 19, the two nitrogen pipes 18 are respectively communicated with the two gas holders 9, and the nitrogen pipes 18 are soft pipes, so that when the moving plate 7 moves up and down, the nitrogen pipes 18 are ensured to be communicated with the gas holders 9.
In this embodiment, the inside of the air seat 9 is divided into three air cavities 92 by two partition walls 91, the partition walls 91 are provided with vent holes 93 for communicating the adjacent air cavities 92, the two opposite end surfaces of the air seat 9 are provided with air inlet holes 94, and the vacuum gauge 12, the nitrogen detector 13, the nitrogen pipe 18 and the vacuum pipe 15 are all communicated with the air cavities 92.
In this embodiment, the upper end face of lower disk seat 10 is equipped with disk seat standing groove 20, the middle part of disk seat standing groove 20 is equipped with discharge valve piece inlet duct 21, discharge valve piece inlet duct 21 communicates discharge valve piece intake pipe 22, discharge valve piece intake pipe 22 and lower disk seat 10 link as an organic whole and set up, discharge valve piece intake pipe 22 and the inlet port 94 sealing connection of downside air seat 9, discharge valve piece inlet duct 21 corresponds the setting with the tongue spring of discharge valve piece.
In this embodiment, the lower end surface of the upper valve seat 11 is provided with an intake valve sheet intake groove 23, an intake cavity 24 communicated with the intake valve sheet intake groove 23 is arranged in the upper valve seat 11, the intake cavity 24 is communicated with an intake valve sheet intake pipe 25, the intake valve sheet intake pipe 25 and the upper valve seat 11 are integrally arranged, the intake valve sheet intake pipe 25 is hermetically connected with an intake hole 94 of the upper side air seat 9, and the intake valve sheet intake groove 23 corresponds to the tongue of the intake valve sheet.
In this embodiment, two four corners of the opposite side of the air seat 9 are provided with a limiting column 26, and four corners of one side of the upper valve seat 11 and the lower valve seat 10 close to the air seat 9 are provided with a limiting groove 27 corresponding to the limiting column 26.
In this embodiment, two opposite side surfaces of the air seat 9 are fixedly connected with a first sealing gasket 28, the lower end surface of the upper valve seat 11 and the upper end surface of the lower valve seat 10 are fixedly connected with a second sealing gasket 29, a sponge mat can be bonded on the bottom surface of the valve seat placing groove 20 to improve the sealing performance, the sponge mat surrounds the periphery of the exhaust valve plate air inlet groove 21, and the second sealing gasket 29 is arranged on the outer sides of the valve seat placing groove 20 and the air inlet groove 23.
The working principle of the application is as follows: through installing disk seat 11 and lower disk seat 10 in two gas seat 9's opposite flank seal, wherein go up disk seat 11 and lower disk seat 10 and carry out the isolated design according to the type of waiting to detect valves and valve block, adopt vacuum pump 14 evacuation to carry out the gas tightness to whole equipment and detect, then place valves or valve block after, the evacuation carries out the gas tightness and detects the back, pours into nitrogen gas, utilizes nitrogen gas detector 13 to detect nitrogen gas content, and then detects the gas tightness of valve block.
During specific implementation, a circular valve plate is selected as an embodiment, in actual production, different upper valve seats 11 and lower valve seats 10 are selected according to the shapes of the valve plates for air tightness detection of different valve plates, detection principles are the same, and detection of different valve plates is not described.
As shown in fig. 7, the compressor valve assembly 30 includes an air suction valve plate 100, a valve seat 200, and an air discharge valve plate 300, an air suction hole 400 and an air discharge hole 500 are formed in the valve seat 200, the air suction valve plate 100 and the air discharge valve plate 300 are respectively and fixedly connected to two side surfaces of the valve seat 200, a tongue of the air suction valve plate 100 corresponds to the air suction hole 400, a tongue of the air discharge valve plate 300 corresponds to the air discharge hole 500, a first through hole 600 corresponding to the air discharge hole 500 is formed in the air suction valve plate 100, and a second through hole 700 corresponding to the air suction hole 400 is formed in the air discharge valve plate.
Detecting the air tightness of the equipment, namely, enabling the moving plate 7 to move downwards under the action of the air cylinder 8, enabling the upper valve seat 11 and the lower valve seat 10 to be relatively tightly attached, opening the vacuum pump 14 and the reversing valve I16, observing the reading of the vacuum meter 12, when the vacuum meter 12 points to a vacuum state, sealing the whole equipment in an air tightness manner, and when the vacuum meter 12 fluctuates and the whole equipment is insufficient in tightness, detecting the air tightness of the equipment until the vacuum meter 12 points to the vacuum state;
after the air tightness detection of the equipment is finished, the vacuum state of the equipment is discharged, the moving plate 7 is moved upwards through the air cylinder 8, the upper valve seat 11 is separated from the lower valve seat 10, the compressor valve seat is placed in the valve seat placing groove 20 of the lower valve seat 10, the exhaust valve plate is placed on the lowest end face, the reed of the exhaust valve plate corresponds to the exhaust valve plate air inlet groove 21, the reed of the air suction valve plate corresponds to the exhaust valve plate air inlet groove 21, after the placement is finished, the air cylinder 8 acts on the moving plate 7 to move downwards, the exhaust valve plate is tightly attached to the bottom of the valve seat placing groove 20, the air suction valve plate is tightly attached to the lower end face of the upper valve seat 11, the vacuum pump 14 is opened, the two air seats 9 are sequentially vacuumized through switching the first reversing valve 16, the readings of the two vacuum meters 12 are observed, when the vacuum meters 12 point to the vacuum state, the compressor valve group is, re-detecting installation until the vacuum meter 12 points to a vacuum state, and ensuring the installation and sealing of the compressor valve bank;
when the airtightness of the air suction valve plate needs to be detected, a nitrogen source 17 is opened, a second reversing valve 19 is switched, so that nitrogen is input into an upper air seat 9 from the nitrogen source 17, the lower end of an upper air seat 11 is sealed against a first through hole of the air suction valve plate, the nitrogen in the air seat 9 sequentially passes through an air inlet pipe 25 of the air suction valve plate and an air inlet cavity 24 and then enters an air inlet groove 23 of the air suction valve plate, the reading of a nitrogen detector 13 on the lower air seat 9 is observed, when the air suction valve plate is good in airtightness, the reading of the nitrogen detector 13 is 0, a vacuum meter 12 on the lower air seat 9 points to a vacuum state, when the air valve plate leaks, the reading of the nitrogen detector 13 is not 0, and the vacuum meter 12;
when the airtightness of the exhaust valve plate needs to be detected, the nitrogen source 17 is opened, the second reversing valve 19 is switched, nitrogen is input into the lower side air seat 9 from the nitrogen source 17, the bottom surface of the valve seat placing groove 20 of the lower valve seat 10 seals the second through hole of the exhaust valve plate, nitrogen in the air seat 9 enters the exhaust valve plate air inlet groove 21 through the exhaust valve plate air inlet pipe 22, the reading of the nitrogen detector 13 on the upper side air seat 9 is observed, when the airtightness of the air suction valve plate is good, the reading of the nitrogen detector 13 is 0, the vacuum meter 12 on the upper side air seat 9 points to a vacuum state, when the valve plate leaks air, the reading of the nitrogen detector 13 is not 0, and the vacuum meter 12 on the upper side air seat 9 fluctuates.
While certain exemplary embodiments of the present invention have been described above by way of illustration only, it will be apparent to those of ordinary skill in the art that the described embodiments may be modified in various different ways without departing from the spirit and scope of the invention. Accordingly, the drawings and description are illustrative in nature and should not be construed as limiting the scope of the invention.
Claims (8)
1. The utility model provides a compressor valve block leak hunting testing arrangement, includes the base, its characterized in that: the upper end face of the base is fixedly connected with the top plate through symmetrical vertical plates, the upper end face of the base is located below the top plate and fixedly connected with the bottom plate, four corners of the upper end face of the bottom plate are fixedly connected with the top plate through vertical columns, a movable plate is slidably connected onto the vertical columns, a sliding hole in sliding connection with the vertical columns is formed in the movable plate, an air cylinder is installed on the top plate and connected with the movable plate, the upper end face of the bottom plate and the lower end face of the movable plate are fixedly connected with an air seat, the lower end face of the air seat is provided with a lower valve seat, the upper end face of the air seat is provided with an upper valve seat, the side faces of the air seat are communicated with a nitrogen system and a vacuum system respectively, and the side faces of.
2. The leak detection testing device for the valve plate of the compressor as claimed in claim 1, wherein: the vacuum system comprises a vacuum pump, vacuum tubes and a first reversing valve, wherein the vacuum pump is connected with the two vacuum tubes through the first reversing valve, and the two vacuum tubes are respectively communicated with the two air seats.
3. The leak detection testing device for the valve plate of the compressor as claimed in claim 2, wherein: the nitrogen system comprises a nitrogen source, two nitrogen pipes and a second reversing valve, wherein the nitrogen source is connected with the two nitrogen pipes through the second reversing valve, and the two nitrogen pipes are respectively communicated with the two gas seats.
4. The leak detection testing device for the valve plate of the compressor as claimed in claim 3, wherein: the inside three air cavities of separating into through two partition walls of air seat, set up the air vent that is used for adjacent air cavity intercommunication on the partition wall, two air inlet port has been seted up to the relative terminal surface department of air seat, and vacuum gauge, nitrogen gas detector, nitrogen gas pipe and vacuum tube all communicate with the air cavity.
5. The leak detection testing device for the valve plate of the compressor as claimed in claim 4, wherein: the upper end face of lower disk seat is equipped with the disk seat standing groove, the middle part of disk seat standing groove is equipped with the discharge valve piece air inlet duct, discharge valve piece air inlet duct intercommunication discharge valve piece intake pipe, discharge valve piece intake pipe and lower disk seat even set up as an organic whole, discharge valve piece intake pipe and the inlet port sealing connection of downside air seat.
6. The leak detection testing device for the valve plate of the compressor as claimed in claim 4, wherein: the lower end face of the upper valve seat is provided with an air inlet groove of the air suction valve plate, an air inlet cavity communicated with the air inlet groove of the air suction valve plate is arranged in the upper valve seat, the air inlet cavity is communicated with an air inlet pipe of the air suction valve plate, the air inlet pipe of the air suction valve plate and the upper valve seat are integrally arranged, and the air inlet pipe of the air suction valve plate is connected with an air inlet hole of the upper air seat in a sealing.
7. The leak detection testing device for the valve plate of the compressor as claimed in claim 1, wherein: two the side four corners department that the gas holder is relative all is equipped with spacing post, go up the disk seat and all be equipped with the spacing groove that corresponds with spacing post with the four corners of the side that the disk seat is close to the gas holder down.
8. The leak detection testing device for the valve plate of the compressor as claimed in claim 1, wherein: two the opposite side of gas seat fixed connection sealed pad one, the lower terminal surface of going up the disk seat and the up end fixed connection sealed pad two of lower disk seat.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110035549.4A CN112697358A (en) | 2021-01-12 | 2021-01-12 | Compressor valve block leak hunting testing arrangement |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110035549.4A CN112697358A (en) | 2021-01-12 | 2021-01-12 | Compressor valve block leak hunting testing arrangement |
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| Publication Number | Publication Date |
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| CN112697358A true CN112697358A (en) | 2021-04-23 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110035549.4A Pending CN112697358A (en) | 2021-01-12 | 2021-01-12 | Compressor valve block leak hunting testing arrangement |
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| CN (1) | CN112697358A (en) |
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