CN217059227U

CN217059227U - Valve tightness detection device

Info

Publication number: CN217059227U
Application number: CN202220027539.6U
Authority: CN
Inventors: 廖卫东
Original assignee: Wuhan Hankewei Valve Co ltd
Current assignee: Wuhan Hankewei Valve Co ltd
Priority date: 2022-01-07
Filing date: 2022-01-07
Publication date: 2022-07-26
Anticipated expiration: 2032-01-07

Abstract

The utility model relates to the technical field of valve detection, in particular to a valve tightness detection device, which is characterized in that a valve is placed at the top end of a bottom gas transmission pipe, then the valve is extended through a first hydraulic cylinder, two groups of sealing rings are respectively larger than the top end and the bottom end of the valve for sealing, then the valve is closed, gas is discharged into the bottom of the valve through an inflating device, then the air at the top of the valve is discharged through a vacuumizing device, the gas tightness of the valve is detected, and meanwhile, the valve is covered through a protection device, so that the detection precision of equipment and the practicability of the equipment are improved; the valve protection device comprises a fixing device, an inflating device, a vacuumizing device and a protection device, wherein the inflating device, the vacuumizing device and the protection device are all installed on the fixing device, the inflating device inflates air into the valve, the vacuumizing device pumps out air in the valve, and the protection device covers the valve.

Description

Valve tightness detection device

Technical Field

The utility model relates to a technical field that the valve detected especially relates to a leakproofness detection device of valve.

Background

After the valve is processed, need carry out the sampling and detect, detect the gas tightness of valve, but current check out test set structure is fairly simple, aerifys the gas tightness that detects the valve through the inside to the valve, detects the precision lower, leads to the practicality relatively poor, consequently needs to improve current equipment.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problem, the utility model provides a put the valve on the top of bottom gas-supply pipe, later extend through first pneumatic cylinder, make two sets of sealing washers be greater than the top and the bottom of valve respectively and seal, later close the valve, go into the bottom in the valve with gas through aerating device, later through the air escape at evacuating device with top in the valve, detect the gas tightness of valve, carry out the cage to the valve through protector simultaneously, thereby improve the detection precision of equipment and the leakproofness detection device of a valve of the practicality of equipment.

The utility model discloses a tightness detection device of a valve, which comprises a fixing device, an inflation device, a vacuumizing device and a protecting device, wherein the inflation device, the vacuumizing device and the protecting device are all arranged on the fixing device;

the fixing device comprises a base, a plurality of groups of support columns, a top plate, two groups of gas pipes, two groups of sealing rings, a display screen, a first hydraulic cylinder, a lifting plate and a plurality of groups of sliding sleeves, the bottom of the top plate is connected with the top of the base through a plurality of groups of support columns, the bottom of the display screen is connected with the top of the base, the top of the first hydraulic cylinder is connected with the bottom of the top plate, the top of the lifting plate is connected with the bottom of the first hydraulic cylinder, the plurality of groups of sliding sleeves are respectively sleeved on the plurality of groups of support columns in a sliding mode, the side ends of the plurality of groups of sliding sleeves are respectively connected with the left end and the right end of the lifting plate, one ends of the two groups of gas pipes are respectively connected with the top of the base and the bottom of the lifting plate, and the two groups of sealing rings are respectively connected with the other ends of the two groups of gas pipes;

put the valve on the top of bottom gas-supply pipe, later extend through first pneumatic cylinder, make two sets of sealing washers be greater than the top and the bottom of valve respectively and seal, later close the valve, arrange gas into the bottom in the valve through aerating device, later discharge the air at top in the valve through evacuating device, detect the gas tightness of valve, carry out the cage to the valve through protector simultaneously to improve equipment's detection precision and equipment's practicality.

Preferably, the inflation device comprises an exhaust pump, a first air pressure sensor and a first air conveying hose, wherein the top end of the exhaust pump is connected with the bottom end of the base, an air suction port is formed in the left end of the exhaust pump, an air exhaust port is formed in the right end of the exhaust pump, the first air pressure sensor is mounted on the inner wall of the bottom air conveying pipe, one end of the first air conveying hose is communicated with the inside of the bottom air conveying pipe, and the cold end of the first air conveying hose is connected with the air exhaust port of the exhaust pump; open the air pump, go into the inside to first baroceptor with the air through first air transmission hose, pressurize the bottom in the valve, detect the atmospheric pressure change in the air transmission pipe of bottom through first baroceptor simultaneously to show to the display screen on, thereby improve equipment's practicality.

Preferably, the vacuumizing device comprises a vacuum pump, a second gas conveying hose, a third gas conveying hose and a second air pressure sensor, the bottom end of the vacuum pump is connected with the top end of the top plate, a suction port is formed in the bottom end of the vacuum pump, a discharge port is formed in the side end of the vacuum pump, the top end of the second gas conveying hose is connected with the suction port of the vacuum pump, the left end of the third gas conveying hose is communicated with the inside of the top gas conveying pipe, and the bottom end of the second gas conveying hose is installed on the third gas conveying hose; open the vacuum pump, through the cooperation of second gas transmission hose and third gas transmission hose with the air escape at top in the valve, with the top evacuation in the valve, detect the atmospheric pressure change in the gas transmission pipe in top through first baroceptor simultaneously to show to the display screen on, thereby improve equipment's practicality.

Preferably, the protection device comprises two groups of side wall plates, two groups of second hydraulic cylinders and two groups of arc-shaped protection plates, the bottom ends of the two groups of side wall plates are connected with the top end of the base, one ends of the two groups of second hydraulic cylinders are respectively connected with the side ends of the two groups of side wall plates, and the other ends of the two groups of second hydraulic cylinders are respectively installed at one ends of the two groups of arc-shaped protection plates; after the valve was cliied to two sets of sealing washers, extend through two sets of second pneumatic cylinders, make two sets of arc backplate enclose the valve, block the piece that splashes when the valve is broken to improve equipment's security.

Preferably, the air purifier further comprises a first filter tank, a second filter tank, a plurality of groups of first filter screens and a plurality of groups of second filter screens, wherein the top end of the first filter tank is connected with the bottom end of the base, the bottom end of the second filter tank is connected with the top end of the lifting plate, an air suction port of the exhaust pump is communicated with the interior of the first filter tank, a ventilation port is formed in the left end of the first filter tank, the bottom end of the second air hose and the top end of the third air hose are communicated with the interior of the second filter tank, and the plurality of groups of first filter screens and the plurality of groups of second filter screens are respectively installed in the first filter tank and the second filter screens; the air enters the inside of the first filter box, is filtered by the first filter screens, and then is sucked out by the exhaust pump from the first filter box, so that the dust entering the exhaust pump is reduced, meanwhile, the air is discharged into the inside of the second filter box by the third air hose, and after being filtered by the second filter screens, the air in the second filter box is sucked out by the vacuum pump, so that the dust entering the vacuum pump is reduced, and the failure rate of the equipment is reduced.

Preferably, the device also comprises a plurality of groups of screws and a plurality of groups of bases, wherein the top ends of the plurality of groups of screws are in threaded connection with the bottom end of the base, and the bottom ends of the plurality of groups of screws are respectively connected with the top ends of the plurality of groups of bases; through rotating the multiunit screw rod, make the bottom of multiunit base support subaerial, adjust the equilibrium of equipment to improve equipment's practicality.

Preferably, the hydraulic cylinder further comprises a plurality of groups of connecting flanges, one ends of the plurality of groups of connecting flanges are respectively connected with the other ends of the plurality of groups of second hydraulic cylinders, and the other ends of the plurality of groups of connecting flanges are respectively fixedly connected with one ends of the plurality of groups of arc-shaped protection plates; through setting up multiunit flange, make things convenient for the staff to dismantle two sets of arc backplate to improve equipment's convenience.

Compared with the prior art, the beneficial effects of the utility model are that: put the valve on the top of bottom gas-supply pipe, later extend through first pneumatic cylinder, make two sets of sealing washers be greater than the top and the bottom of valve respectively and seal, later close the valve, arrange gas into the bottom in the valve through aerating device, later discharge the air at top in the valve through evacuating device, detect the gas tightness of valve, carry out the cage to the valve through protector simultaneously to improve equipment's detection precision and equipment's practicality.

Drawings

Fig. 1 is a schematic front sectional view of the present invention;

FIG. 2 is an enlarged view of the part A of FIG. 1;

fig. 3 is a schematic view of the shaft measuring and enlarging structure of the protection device of the present invention;

in the drawings, the reference numbers: 1. a base; 2. a support pillar; 3. a top plate; 4. a gas delivery pipe; 5. a seal ring; 6. a display screen; 7. a first hydraulic cylinder; 8. a lifting plate; 9. a sliding sleeve; 10. an exhaust pump; 11. a first air pressure sensor; 12. a first gas hose; 13. a vacuum pump; 14. a second gas hose; 15. a third gas hose; 16. a second barometric pressure sensor; 17. a side wall panel; 18. A second hydraulic cylinder; 19. an arc-shaped guard plate; 20. a first filter tank; 21. a second filter tank; 22. A first filter screen; 23. a second filter screen; 24. a screw; 25. a base; 26. and connecting the flanges.

Detailed Description

In order to facilitate understanding of the present invention, the present invention will be described more fully hereinafter with reference to the accompanying drawings. The present invention may be embodied in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.

Example 1

The inflating device, the vacuumizing device and the protective device are all arranged on the fixing device, the inflating device inflates air into the valve, the vacuumizing device extracts air in the valve, and the protective device covers the valve;

the fixing device comprises a base 1, a plurality of groups of supporting columns 2, a top plate 3, two groups of gas transmission pipes 4, two groups of sealing rings 5, a display screen 6, a first hydraulic cylinder 7, a lifting plate 8 and a plurality of groups of sliding sleeves 9, wherein the bottom end of the top plate 3 is connected with the top end of the base 1 through the plurality of groups of supporting columns 2, the bottom end of the display screen 6 is connected with the top end of the base 1, the top end of the first hydraulic cylinder 7 is connected with the bottom end of the top plate 3, the top end of the lifting plate 8 is connected with the bottom end of the first hydraulic cylinder 7, the plurality of groups of sliding sleeves 9 are respectively sleeved on the plurality of groups of supporting columns 2 in a sliding mode, the side ends of the plurality of groups of sliding sleeves 9 are respectively connected with the left end and the right end of the lifting plate 8, one ends of the two groups of gas transmission pipes 4 are respectively connected with the top end of the base 1 and the bottom end of the lifting plate 8, and the two groups of sealing rings 5 are respectively connected with the other ends of the two groups of gas transmission pipes 4;

the inflation device comprises an exhaust pump 10, a first air pressure sensor 11 and a first air conveying hose 12, wherein the top end of the exhaust pump 10 is connected with the bottom end of the base 1, an air suction port is formed in the left end of the exhaust pump 10, an air exhaust port is formed in the right end of the exhaust pump 10, the first air pressure sensor 11 is installed on the inner wall of the bottom air conveying pipe 4, one end of the first air conveying hose 12 is communicated with the inside of the bottom air conveying pipe 4, and the cold end of the first air conveying hose 12 is connected with the air exhaust port of the exhaust pump 10;

put the valve on the top of bottom gas-supply pipe 4, later extend through first pneumatic cylinder 7, make two sets of sealing washer 5 be greater than the top and the bottom of valve respectively and seal, later close the valve, through opening air pump 10, go into the inside to first baroceptor 11 with the air discharge through first air hose 12, pressurize the bottom in the valve, the atmospheric pressure change in the gas-supply pipe 4 of bottom is detected through first baroceptor 11 simultaneously, and show to on display screen 6, detect the gas tightness of valve, carry out the cage to the valve through protector simultaneously, thereby improve equipment's the detection precision and the practicality of equipment.

Example 2

the vacuumizing device comprises a vacuum pump 13, a second gas conveying hose 14, a third gas conveying hose 15 and a second air pressure sensor 16, the bottom end of the vacuum pump 13 is connected with the top end of the top plate 3, a suction port is formed in the bottom end of the vacuum pump 13, a discharge port is formed in the side end of the vacuum pump 13, the top end of the second gas conveying hose 14 is connected with the suction port of the vacuum pump 13, the left end of the third gas conveying hose 15 is communicated with the inside of the top gas conveying pipe 4, and the bottom end of the second gas conveying hose 14 is installed on the third gas conveying hose 15;

put the valve on the top of bottom gas-supply pipe 4, later extend through first pneumatic cylinder 7, make two sets of sealing washer 5 be greater than the top and the bottom of valve respectively and seal, later close the valve, through opening vacuum pump 13, through the air escape at top in the cooperation of second gas hose 14 and third gas hose 15 with the valve, take out the top evacuation in the valve, simultaneously detect the atmospheric pressure change in the top gas-supply pipe 4 through first baroceptor 11, and show to on display screen 6, detect the gas tightness of valve, carry out the cage to the valve through protector simultaneously, thereby improve the detection precision of equipment and the practicality of equipment.

As shown in fig. 1 to 3, the device for detecting the sealing performance of a valve of the present invention, when in operation, firstly, by rotating a plurality of screw rods 24, the bottom of a plurality of bases 25 is supported on the ground, the balance of the device is adjusted, then the valve is placed on the top of a bottom gas pipe 4, then the first hydraulic cylinder 7 is extended, two sets of sealing rings 5 are respectively larger than the top and the bottom of the valve for sealing, then the valve is closed, air enters the first filtering box 20, after being filtered by a plurality of sets of first filtering screens 22, the air pump 10 sucks out the air in the first filtering box 20, the air is discharged into the first pressure sensor 11 through a first gas hose 12, the bottom in the valve is pressurized, and simultaneously, the air pressure change in the bottom gas pipe 4 is detected through the first pressure sensor 11 and displayed on a display screen 6, then the third air hose 15 emits the air into the inside of the second filter box 21, after being filtered by the multiple groups of second filter screens 23, the vacuum pump 13 sucks out the air in the second filter box 21, the top in the valve is vacuumized, meanwhile, the air pressure change in the top air pipe 4 is detected through the first air pressure sensor 11 and is displayed on the display screen 6, the air tightness of the valve is detected, meanwhile, the two groups of second hydraulic cylinders 18 extend, the two groups of arc-shaped guard plates 19 enclose the valve, and the splashed fragments can be blocked when the valve is broken.

The utility model discloses the main function who realizes does: the air tightness of the valve is detected in a mode that one side is inflated and the other side is inhaled.

The sealing performance detection device of the valve of the utility model adopts a common mechanical mode, such as an installation mode, a connection mode or a setting mode, and can be implemented as long as beneficial effects can be achieved; the utility model discloses a leakproofness detection device's of valve first pneumatic cylinder 7, air pump 10, vacuum pump 13 and second pneumatic cylinder 18 for purchase on the market, this industry technical staff only need according to its subsidiary service instruction install and operate can, and need not the technical staff in the field and pay out creative work.

All technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications and variations can be made without departing from the technical principle of the present invention, and these modifications and variations should also be regarded as the protection scope of the present invention.

Claims

1. The device for detecting the sealing performance of the valve is characterized by comprising a fixing device, an inflating device, a vacuumizing device and a protecting device, wherein the inflating device, the vacuumizing device and the protecting device are all arranged on the fixing device;

the fixing device comprises a base (1), a plurality of groups of supporting columns (2), a top plate (3), two groups of gas transmission pipes (4), two groups of sealing rings (5), a display screen (6), a first hydraulic cylinder (7), a lifting plate (8) and a plurality of groups of sliding sleeves (9), wherein the bottom end of the top plate (3) is connected with the top end of the base (1) through the plurality of groups of supporting columns (2), the bottom end of the display screen (6) is connected with the top end of the base (1), the top end of the first hydraulic cylinder (7) is connected with the bottom end of the top plate (3), the top end of the lifting plate (8) is connected with the bottom end of the first hydraulic cylinder (7), the plurality of groups of sliding sleeves (9) are respectively sleeved on the plurality of groups of supporting columns (2) in a sliding manner, the side ends of the plurality of groups of sliding sleeves (9) are respectively connected with the left end and the right end of the lifting plate (8), one end of the two groups of gas transmission pipes (4) is respectively connected with the top end of the base (1) and the bottom end of the lifting plate (8), the two groups of sealing rings (5) are respectively connected with the other ends of the two groups of air delivery pipes (4).

2. The device for detecting the sealing property of the valve according to claim 1, wherein the inflation device comprises an exhaust pump (10), a first air pressure sensor (11) and a first air hose (12), the top end of the exhaust pump (10) is connected with the bottom end of the base (1), an air suction port is arranged at the left end of the exhaust pump (10), an exhaust port is arranged at the right end of the exhaust pump (10), the first air pressure sensor (11) is installed on the inner wall of the bottom air pipe (4), one end of the first air hose (12) is communicated with the inside of the bottom air pipe (4), and the cold end of the first air hose (12) is connected with the exhaust port of the exhaust pump (10).

3. The device for detecting the sealing performance of the valve according to claim 1, wherein the vacuum pumping device comprises a vacuum pump (13), a second gas transmission hose (14), a third gas transmission hose (15) and a second air pressure sensor (16), the bottom end of the vacuum pump (13) is connected with the top end of the top plate (3), the bottom end of the vacuum pump (13) is provided with a suction port, the side end of the vacuum pump (13) is provided with a discharge port, the top end of the second gas transmission hose (14) is connected with the suction port of the vacuum pump (13), the left end of the third gas transmission hose (15) is communicated with the inside of the top gas transmission pipe (4), and the bottom end of the second gas transmission hose (14) is mounted on the third gas transmission hose (15).

4. The device for detecting the sealing performance of the valve according to claim 1, wherein the protecting device comprises two sets of side wall plates (17), two sets of second hydraulic cylinders (18) and two sets of arc-shaped protecting plates (19), the bottom ends of the two sets of side wall plates (17) are connected to the top end of the base (1), one ends of the two sets of second hydraulic cylinders (18) are respectively connected to the side ends of the two sets of side wall plates (17), and the other ends of the two sets of second hydraulic cylinders (18) are respectively mounted at one ends of the two sets of arc-shaped protecting plates (19).

5. The device for detecting the sealing performance of the valve according to claim 2 or 3, further comprising a first filtering box (20), a second filtering box (21), a plurality of groups of first filtering screens (22) and a plurality of groups of second filtering screens (23), wherein the top end of the first filtering box (20) is connected with the bottom end of the base (1), the bottom end of the second filtering box (21) is connected with the top end of the lifting plate (8), the air suction port of the exhaust pump (10) is communicated with the inside of the first filtering box (20), the left end of the first filtering box (20) is provided with an air vent, the bottom end of the second air conveying hose (14) and the top end of the third air conveying hose (15) are both communicated with the inside of the second filtering box (21), and the plurality of groups of first filtering screens (22) and the plurality of groups of second filtering screens (23) are respectively installed inside the first filtering box (20) and the second filtering screens (23).

6. The device for detecting the sealing performance of the valve according to claim 1, further comprising a plurality of sets of screws (24) and a plurality of sets of bases (25), wherein the top ends of the plurality of sets of screws (24) are all in threaded connection with the bottom end of the base (1), and the bottom ends of the plurality of sets of screws (24) are respectively connected with the top ends of the plurality of sets of bases (25).

7. The device for detecting the sealing performance of the valve according to claim 4, further comprising a plurality of sets of connecting flanges (26), wherein one ends of the plurality of sets of connecting flanges (26) are respectively connected with the other ends of the plurality of sets of second hydraulic cylinders (18), and the other ends of the plurality of sets of connecting flanges (26) are respectively fixedly connected with one ends of the plurality of sets of arc-shaped protection plates (19).