CN215763497U

CN215763497U - Safety gas pressure regulator

Info

Publication number: CN215763497U
Application number: CN202122239214.2U
Authority: CN
Inventors: 尹卫东; 杨军华; 李芹; 章文; 柳天源; 严义亮; 肖嵩; 陈立
Original assignee: Wuhan Gas Thermal Energy Service Co ltd
Current assignee: Wuhan Gas Thermal Energy Service Co ltd
Priority date: 2021-09-15
Filing date: 2021-09-15
Publication date: 2022-02-08
Anticipated expiration: 2031-09-15

Abstract

The utility model relates to the technical field of gas pressure regulators, in particular to a safe gas pressure regulator, which is characterized in that when the safe gas pressure regulator works, gas enters a valve body through an air inlet and is discharged through an air outlet, a valve pad is slightly floated through a gap arranged between a valve pad nut and the valve pad to keep balance, when the air outlet stops discharging the gas, a valve core is tightly attached to the valve pad, the rising of closing pressure is reduced, the closing pressure precision of equipment is improved, when a main skin membrane in the gas pressure regulator is damaged, and the gas pressure exceeds a limited pressure, a hook in a cutting device is disengaged, and the cut valve pad is sealed on an inlet of the valve core through the elasticity of a compression spring to block the gas and reduce the gas flowing into the downstream, so that the safety and the practicability of the equipment are improved; the valve comprises a valve body, a valve core, a connecting shaft, a valve gasket nut, a valve gasket, a sliding sleeve, a cut-off valve gasket, a compression spring, a lower cavity cover, an intermediate flange, a main leather membrane, an upper cavity cover, a buffer, a gland, a main spring, an adjusting bolt and a cut-off device.

Description

Safety gas pressure regulator

Technical Field

The utility model relates to the technical field of gas pressure regulators, in particular to a safe gas pressure regulator.

Background

A gas pressure regulator (also called a gas pressure regulator) is a device that automatically changes the flow of gas through a regulating valve to maintain a predetermined pressure of gas at an outlet. But current equipment structure is fairly simple, lacks corresponding safety mechanism, and at the gas transmission in-process, the sealed effect of case and valve pad is relatively poor, when gas pressure regulator export stops the exhaust gas, causes the pressure when closing easily and risees, and when the main involucra in gas pressure regulator damaged, gas pressure that gas pressure regulator was discharged increases, directly gushes to low reaches, makes current device trouble easily, leads to practicality and security relatively poor, consequently needs to improve current equipment.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problems, the utility model provides the safe gas pressure regulator, when the safe gas pressure regulator works, gas enters the valve body through the gas inlet and is discharged through the gas outlet, the valve pad is slightly floated through a gap arranged between the valve pad nut and the valve pad to keep balance, when the gas outlet stops discharging the gas, the valve core is tightly attached to the valve pad to reduce the rising of closing pressure, so that the precision of the closing pressure of the equipment is improved, when a main skin membrane in the gas pressure regulator is damaged and the gas pressure exceeds the limited pressure, a hook in the cutting device is disengaged, and the cutting valve pad is sealed on the inlet of the valve core through the elasticity of the compression spring to block the gas and reduce the gas flowing into the downstream, so that the safety and the practicability of the equipment are improved.

The utility model relates to a safety gas pressure regulator, which comprises a valve body, a valve core, a connecting shaft, a valve pad nut, a valve pad, a sliding sleeve, a cut-off valve pad, a compression spring, a lower cavity cover, an intermediate flange, a main leather membrane, an upper cavity cover, a buffer, a gland, a main spring, an adjusting bolt and a cutting device, wherein the left end of the valve body is provided with an air inlet, the right end of the valve body is provided with an air outlet, the inside of the valve body is provided with a metal partition plate and a valve port, the valve core, the connecting shaft, the valve pad nut, the valve pad, the sliding sleeve, the cut-off valve pad and the compression spring are all arranged inside the valve body, a certain gap is arranged between the valve pad nut and the valve pad, the sliding sleeve is slidably arranged on the valve core, the cut-off valve pad is arranged at the bottom end of the sliding sleeve, the lower cavity cover is arranged on the valve body through the intermediate flange, and the bottom end of the upper cavity cover is arranged at the top end of the lower cavity cover, an exhaust port is formed in the upper cavity cover, the main leather film is arranged between the lower cavity cover and the upper cavity cover, the main leather film is located at the top of the connecting shaft, an upper cavity and a lower cavity are formed between the lower cavity cover and the upper cavity cover, the gland is arranged on the main leather film, the main spring is arranged at the top end of the gland, the adjusting bolt is in threaded connection with the outer surface and the top end of the valve body, the adjusting bolt is located above the main spring, the bottom end of the buffer is connected with the exhaust port of the upper cavity cover, the cutting device is arranged on the outer side of the valve body and is communicated with a downstream gas pipe, the inside of the cutting device is fixedly connected with the sliding sleeve through a hook, and the bottom end of the cutting device is provided with an adjusting nut; during operation, the gas passes through the air inlet and enters into the inside to the valve body, behind the valve port, the rethread gas vent is discharged, through the clearance that is provided with between valve pad nut and the valve pad, make the valve pad trace float, keep balance, when the gas vent stops to discharge the gas, the case closely laminates with the valve pad, reduce the rising of closing pressure, make equipment closing pressure precision improve, when the main skin membrane in the gas pressure regulator damages, when gas pressure surpassed the confined pressure, the couple in the cutting device takes off and hinders, elasticity through compression spring, make the valve pad of cutting off seal the case import, block the gas, reduce the gas that flows into the low reaches, thereby improve equipment's security and practicality.

Preferably, the device also comprises a lifting ring, wherein the bottom end of the lifting ring is connected with the top end of the adjusting bolt; through stretching into the shaft-shaped object to rings, rotate rings to improve equipment's convenience.

Preferably, the valve also comprises two groups of connecting flanges, and the side ends of the two groups of connecting flanges are respectively connected with the air inlet at the left end of the valve body and the air outlet at the right end of the valve body; make things convenient for the valve body to pass through two sets of flange and gas transmission pipeline fixed connection to improve equipment's convenience.

Preferably, a handle is arranged at the front end of the valve body; the cutting device and the cutting valve pad can be conveniently reset manually, so that the practicability of the device is improved.

Preferably, the main leather membrane is made of nitrile rubber interlining; the pressure bearing of the main leather diaphragm is improved, and the failure rate of the equipment is reduced.

Compared with the prior art, the utility model has the beneficial effects that: during operation, the gas passes through the air inlet and enters into the inside to the valve body, behind the valve port, the rethread gas vent is discharged, through the clearance that is provided with between valve pad nut and the valve pad, make the valve pad trace float, keep balance, when the gas vent stops to discharge the gas, the case closely laminates with the valve pad, reduce the rising of closing pressure, make equipment closing pressure precision improve, when the main skin membrane in the gas pressure regulator damages, when gas pressure surpassed the confined pressure, the couple in the cutting device takes off and hinders, elasticity through compression spring, make the valve pad of cutting off seal the case import, block the gas, reduce the gas that flows into the low reaches, thereby improve equipment's security and practicality.

Drawings

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

FIG. 2 is a schematic left side sectional view of the present invention;

FIG. 3 is a schematic left side view of the present invention;

FIG. 4 is a left enlarged view of the cutting apparatus of the present invention;

in the drawings, the reference numbers: 1. a valve body; 2. an air inlet; 3. an exhaust port; 4. a metal separator; 5. a valve core; 6. a connecting shaft; 7. a valve gasket nut; 8. a valve pad; 9. a valve port; 10. a sliding sleeve; 11. cutting off the valve pad; 12. a compression spring; 14. a lower chamber cover; 15. a middle flange; 17. a primary skin membrane; 18. an upper chamber cover; 19. an upper chamber; 20. a lower chamber; 21 a buffer; 22. a platen; 23. a main spring; 24. adjusting the screw rod; 25. a hoisting ring; 26. a cutting device; 29. a handle; 30. adjusting the nut; 31. and connecting the flanges.

Detailed Description

To facilitate an understanding of the utility model, the utility model will now be described more fully 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 left end of the valve body 1 is provided with an air inlet 2, the right end of the valve body 1 is provided with an air outlet 3, the interior of the valve body 1 is provided with a metal clapboard 4 and a valve port 9, a valve core 5, a connecting shaft 6, a valve pad nut 7, a valve pad 8, a sliding sleeve 10, a cutting valve pad 11 and a compression spring 12 are all arranged in the valve body 1, a certain gap is arranged between the valve pad nut 7 and the valve pad 8, the sliding sleeve 10 is slidably arranged on the valve core 5, the cutting valve pad 11 is arranged at the bottom end of the sliding sleeve 10, the compression spring 12 is arranged at the top end of the sliding sleeve 10, a lower cavity cover 14 is arranged on the valve body 1 through an intermediate flange 15, the bottom end of an upper cavity cover 18 is arranged at the top end of a lower cavity cover 14, the upper cavity cover 18 is provided with an air outlet, a main membrane 17 is arranged between the lower cavity cover 14 and the upper cavity cover 18, and the main membrane 17 is positioned at the top of the connecting shaft 6, so that an upper cavity 19 and a lower cavity 20 are formed between the lower cavity cover 14 and the upper cavity cover 18, the gland 22 is arranged on the main leather membrane 17, the main spring 23 is arranged at the top end of the gland 22, the adjusting bolt 24 is in threaded connection with the outer surface and the top end of the valve body 1, the adjusting bolt 24 is positioned above the main spring 23, the bottom end of the buffer 21 is connected with the exhaust port of the upper cavity cover 18, the cutting device 26 is arranged on the outer side of the valve body 1, the cutting device 26 is communicated with a downstream gas pipe, the inside of the cutting device 26 is fixedly connected with the sliding sleeve 10 through a hook, and the bottom end of the cutting device 26 is provided with an adjusting nut 30; during operation, the gas enters into the inside of valve body 1 through air inlet 2, behind

valve port

9, 3 discharges of rethread gas vents, through the clearance that is provided with between valve gasket nut 7 and the valve gasket 8, make valve gasket 8 trace float, keep balance, when gas vent 3 stops the discharge gas, case 5 closely laminates with valve gasket 8, reduce the rising of closing pressure, make equipment closing pressure precision improve, when the main involucrum in the gas pressure regulator damages, when gas pressure surpassed confining pressure, the couple in cutting device 26 is got rid of and is hindered, elasticity through compression spring 12, make cut-off valve gasket 11 seal case 5 import, block the gas, reduce the gas that flows into the low reaches, thereby improve equipment's security and practicality.

The installation mode, the connection mode or the setting mode of the safety gas pressure regulator are all common mechanical modes, and the safety gas pressure regulator can be implemented as long as the beneficial effects of the safety gas pressure regulator can be achieved.

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 in the description of the utility model herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the utility model. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

The above description is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, several 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. A safety gas pressure regulator is characterized by comprising a valve body (1), a valve core (5), a connecting shaft (6), a valve gasket nut (7), a valve gasket (8), a sliding sleeve (10), a cut-off valve gasket (11), a compression spring (12), a lower cavity cover (14), a middle flange (15), a main leather membrane (17), an upper cavity cover (18), a buffer (21), a gland (22), a main spring (23), an adjusting bolt (24) and a cutting device (26), wherein the left end of the valve body (1) is provided with an air inlet (2), the right end of the valve body (1) is provided with an air outlet (3), a metal partition plate (4) and a valve port (9) are arranged inside the valve body (1), the valve core (5), the connecting shaft (6), the valve gasket nut (7), the valve gasket (8), the sliding sleeve (10), the cut-off valve gasket (11) and the compression spring (12) are all arranged inside the valve body (1), a certain gap is arranged between the valve gasket nut (7) and the valve gasket (8), the sliding sleeve (10) is slidably mounted on the valve core (5), the cut-off valve gasket (11) is mounted at the bottom end of the sliding sleeve (10), the compression spring (12) is mounted at the top end of the sliding sleeve (10), the lower cavity cover (14) is mounted on the valve body (1) through the middle flange (15), the bottom end of the upper cavity cover (18) is mounted at the top end of the lower cavity cover (14), the upper cavity cover (18) is provided with an exhaust port, the main leather membrane (17) is mounted between the lower cavity cover (14) and the upper cavity cover (18), the main leather membrane (17) is positioned at the top of the connecting shaft (6), so that an upper cavity (19) and a lower cavity (20) are formed between the lower cavity cover (14) and the upper cavity cover (18), the gland (22) is mounted on the main leather membrane (17), and the main spring (23) is mounted at the top end of the gland (22), adjusting bolt (24) and the top threaded connection of surface and valve body (1) to adjusting bolt (24) are located the top of main spring (23), and the bottom of buffer (21) is connected with the gas vent of upper chamber lid (18), and cutting device (26) are installed in the outside of valve body (1), and cutting device (26) are linked together with the low reaches gas-supply pipe, through couple and sliding sleeve (10) fixed connection in cutting device (26), the bottom of cutting device (26) is provided with adjusting nut (30).

2. A safety gas pressure regulator according to claim 1, further comprising a lifting ring (25), wherein the bottom end of the lifting ring (25) is connected to the top end of the adjusting bolt (24).

3. The safety gas pressure regulator according to claim 1, further comprising two sets of connecting flanges (31), wherein the side ends of the two sets of connecting flanges (31) are respectively connected with the gas inlet (2) at the left end of the valve body (1) and the gas outlet (3) at the right end of the valve body (1).

4. A safety gas pressure regulator according to claim 1, characterized in that the front end of the valve body (1) is provided with a handle (29).

5. The safety gas pressure regulator according to claim 1, wherein the main membrane (17) is made of nitrile rubber clamped cloth.