CN216643268U

CN216643268U - Pressure reducing device of natural gas pressure regulating valve

Info

Publication number: CN216643268U
Application number: CN202220162004.XU
Authority: CN
Inventors: 夏鹏; 王新跃; 黄青伟; 付维召; 焦有厅
Original assignee: Hebei Credit Gas Equipment Co ltd
Current assignee: Hebei Credit Gas Equipment Co ltd
Priority date: 2022-01-21
Filing date: 2022-01-21
Publication date: 2022-05-31
Anticipated expiration: 2032-01-21

Abstract

The utility model relates to the technical field of pressure reducing devices of natural gas pressure regulating valves, and provides a pressure reducing device of a natural gas pressure regulating valve, which comprises a box body, wherein an air inlet is arranged on the left end face of the box body, a box cover is rotatably connected to the upper edge of the rear end face of the box body through a hinge, a display screen is arranged on the upper end face of the box cover, a fixing bolt is arranged on the front edge of the upper end face of the box cover, an air outlet is arranged on the right end face of the box body, the air inlet is fixedly communicated with a pressure reducing box through a communicating pipe, the left end face of the pressure reducing box is fixedly communicated with a connecting pipe, the connecting pipe is fixedly communicated with the air outlet, a pressure reducing device is arranged in the inner cavity of the pressure reducing box, and a fixing cylinder is fixedly communicated with the upper end face of the pressure reducing box. Through above-mentioned technical scheme, the pressure relief device of having solved the natural gas air-vent valve among the prior art is inconvenient seals fixedly to the air inlet and leads to the natural gas to leak, inconvenient warning when internal pressure is too high reminds personnel to carry out the problem of inspection.

Description

Pressure reducing device of natural gas pressure regulating valve

Technical Field

The utility model relates to the technical field of pressure reducing devices of natural gas pressure regulating valves, in particular to a pressure reducing device of a natural gas pressure regulating valve.

Background

Natural gas is a combustible gas existing in nature, is a fossil fuel, and comprises gases formed in various natural processes in an air space, a water space and a rock space, and the definition of 'natural gas' which is commonly used for a long time is a narrow definition from the energy perspective, and refers to a mixture of hydrocarbon and non-hydrocarbon gases which are naturally accumulated in a stratum, and the pressure of the natural gas needs to be reduced through a pressure reducing device before the natural gas is put into use.

But when the pressure relief is arranged again to the pressure relief device of current natural gas air-vent valve, the inconvenience seals the air inlet and fixes and lead to the natural gas to leak, and the pressure relief device of current natural gas air-vent valve when internal pressure was too high moreover, the inconvenient warning personnel of reminding inspect.

SUMMERY OF THE UTILITY MODEL

The utility model provides a pressure reducing device of a natural gas pressure regulating valve, which solves the problems that in the prior art, the pressure reducing device of the natural gas pressure regulating valve is inconvenient to seal and fix an air inlet, so that natural gas is leaked, and when the internal pressure is too high, an alarm is inconvenient to remind a person to check.

The technical scheme of the utility model is as follows: the power distribution box comprises a box body, box left end face is provided with the air inlet, box rear end face top edge department is connected with the case lid through hinge rotation, the case lid up end is provided with the display screen, edge is provided with the gim peg before the case lid up end, the box right-hand member face is provided with the gas vent, the air inlet has the decompression box through the fixed intercommunication of communicating pipe, the fixed intercommunication of decompression box left end face has the connecting pipe, the fixed intercommunication gas vent of connecting pipe, the interior chamber of decompression box is provided with pressure relief device, the fixed intercommunication of decompression box up end has a fixed section of thick bamboo, the fixed section of thick bamboo up end evenly is provided with the pressure release mouth, the pressure relief device outside is provided with sealing device.

Preferably, decompression box inner chamber fixedly connected with L type stopper, L type stopper adopts the rubber material to make.

Preferably, the upper end face of the communicating pipe is uniformly provided with a pressure gauge, the pressure gauge is electrically connected with the display screen through an electric wire, a buzzer is arranged inside the upper end face of the box cover, and the buzzer is electrically connected with the display screen through an electric wire.

Preferably, the pressure reducing device comprises a sealing cover, a first spring, a threaded rod, a rotating cover and a sealing plate, the outer portion of the fixing cylinder is connected with the rotating cover in a sliding mode, the threaded rod is fixedly connected to the upper wall of the inner cavity of the rotating cover, the outer portion of the threaded rod is connected with the sealing plate in a threaded mode, the first spring is fixedly connected to the lower end face of the sealing plate, the sealing cover is fixedly connected to one end face of the sealing plate is far away from the first spring, and the sealing cover is connected to the outer portion of the threaded rod in a sliding mode.

Preferably, the inner cavity of the pressure reducing box is rotatably connected with a threaded rod through a bearing, a rubber layer is arranged on the lower end face of the sealing cover, and the sealing plate is made of rubber.

Preferably, sealing device is including bracing piece, T type spout, second spring, T type slide bar and sealed piece, the outside fixedly connected with bracing piece of threaded rod, a threaded rod terminal surface is kept away from to the bracing piece is provided with T type spout, T type spout inner chamber bottom fixedly connected with second spring, T type spout inner chamber bottom one end fixedly connected with T type slide bar is kept away from to the second spring, a second spring terminal surface fixedly connected with sealed piece is kept away from to T type slide bar, sealed piece adopts the stereoplasm rubber material to make.

Preferably, the terminal surface is provided with natural gas inductive probe under the case lid, natural gas inductive probe passes through electric wire electric connection display screen, the terminal surface is provided with the latex pad under the case lid.

Preferably, a glass window is arranged on the upper end face of the box cover.

The working principle and the beneficial effects of the utility model are as follows:

1. in the utility model. Utilize the air inlet to communicate outside natural gas line through the personnel, then recycle outside natural gas line cooperation air inlet and arrange the natural gas into in the communicating tube, make communicating pipe shunt the atmospheric pressure that reduces the natural gas and arrange into in the decompression box, and utilize the manometer to carry out the detected pressure to the natural gas of reposition of redundant personnel, give the display screen through the electric wire transmission when pressure is too high, recycle the display screen and open bee calling organ and report to the police and remind personnel, thereby the pressure relief device of having solved current natural gas air-vent valve when inside pressure is too high, inconvenience is reported to the police and is reminded personnel and carry out the trouble of inspection. Hold through the personnel and rotate the lid and rotate the threaded rod, make the threaded rod open fixed section of thick bamboo through the thread drive closing plate, then make first spring bounce sealed lid again, reuse sealed lid is connected with L type stopper block through the rubber layer of terminal surface down and is sealed fixed, leads to the trouble that natural gas leaked when the pressure relief device of avoiding current natural gas air-vent valve is discharged again and is pressed the pressure release. Hold through the personnel and rotate the lid and rotate the threaded rod, make the threaded rod open fixed section of thick bamboo through the screw thread transmission closing plate, and recycle the threaded rod and rotate the bracing piece, make the bracing piece drive T type slide bar and sealed piece through T type spout, then make the second spring in the T type spout inner chamber bounce T type slide bar and sealed piece seal fixedly communicating pipe, and bounce sealed lid through the first spring of cooperation again, make sealed lid be connected with L type stopper block through the rubber layer of terminal surface down and seal fixedly, thereby when having solved the pressure relief device of current natural gas air-vent valve and having discharged the pressure relief again, the inconvenience seals the trouble that fixed leads to the natural gas leakage to the air inlet.

Drawings

The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.

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

FIG. 2 is a rear view of the present invention;

FIG. 3 is a schematic view of a partially sectioned structure of the case of the present invention;

FIG. 4 is a schematic view of a half-section structure of the case body of the present invention;

in the figure: 1. a box body; 2. an air inlet; 3. a box cover; 4. a display screen; 5. a fixing bolt; 6. an exhaust port; 7. a hinge; 8. a communicating pipe; 9. a decompression box; 10. a pressure reducing device; 101. a sealing cover; 102. a first spring; 103. a threaded rod; 104. rotating the cover; 105. a sealing plate; 11. an L-shaped limiting block; 12. a sealing device; 1201. a support bar; 1202. a T-shaped chute; 1203. a second spring; 1204. a T-shaped slide bar; 1205. a sealing block; 13. a connecting pipe; 14. a pressure gauge; 15. a fixed cylinder; 16. a pressure relief port; 17. a natural gas sensing probe; 18. a latex pad; 19. a buzzer; 20. a glass window;

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any inventive step, are intended to be within the scope of the present invention.

Example 1

As shown in fig. 1 to 4, the present embodiment provides a pressure reducing device for a natural gas pressure regulating valve, which comprises a box body 1, an air inlet 2 is arranged on the left end face of the box body 1, a box cover 3 is rotatably connected to the upper edge of the rear end face of the box body 1 through a hinge 7, a display screen 4 is arranged on the upper end face of the box cover 3, a fixing bolt 5 is arranged on the front edge of the upper end face of the box cover 3, an exhaust outlet 6 is arranged on the right end face of the box body 1, the air inlet 2 is fixedly communicated with a pressure reducing box 9 through a communicating pipe 8, a connecting pipe 13 is fixedly communicated with the left end face of the pressure reducing box 9, the connecting pipe 13 is fixedly communicated with the exhaust outlet 6, a pressure reducing device 10 is arranged in the inner cavity of the pressure reducing box 9, a fixed cylinder 15 is fixedly communicated with the upper end face of the pressure reducing box 9, pressure relief ports 16 are uniformly arranged on the upper end face of the fixed cylinder 15, a sealing device 12 is arranged outside the pressure reducing device 10, an L-shaped limiting block 11 is fixedly connected to the inner cavity of the pressure reducing box 9, the L-shaped limiting block 11 is made of rubber material, the upper end face of the communicating pipe 8 is evenly provided with a pressure gauge 14, the pressure gauge 14 is electrically connected with the display screen 4 through an electric wire, the inner part of the upper end face of the box cover 3 is provided with a buzzer 19, and the buzzer 19 is electrically connected with the display screen 4 through an electric wire. The natural gas is communicated through the gas inlet 2 by a person, then the natural gas is discharged into the communicating pipe 8 by matching the external natural gas pipeline with the gas inlet 2, the communicating pipe 8 is used for shunting the natural gas to reduce the gas pressure of the natural gas and discharging the natural gas into the pressure reducing box 9, the pressure gauge 14 is used for detecting the pressure of the shunted natural gas, the natural gas is transmitted to the display screen 4 through an electric wire when the pressure is overhigh, the buzzer 19 is opened by the display screen 4 to alarm and remind the person, thereby solving the problem that the pressure reducing device of the existing natural gas pressure regulating valve is inconvenient for the alarm and remind the person to check when the internal pressure is overhigh, the pressure reducing device 10 comprises a sealing cover 101, a first spring 102, a threaded rod 103, a rotating cover 104 and a sealing plate 105, the rotating cover 104 is slidably connected outside the fixed cylinder 15, the threaded rod 103 is fixedly connected on the upper wall of the inner cavity of the rotating cover 104, and the threaded rod 103 is connected with the sealing plate 105 through threads, the lower end face of the sealing plate 105 is fixedly connected with a first spring 102, one end face of the first spring 102, which is far away from the sealing plate 105, is fixedly connected with a sealing cover 101, and the outside of the threaded rod 103 is slidably connected with the sealing cover 101. A person holds the rotating cover 104 to rotate the threaded rod 103, the threaded rod 103 opens the fixed cylinder 15 through the threaded transmission sealing plate 105, then the first spring 102 bounces the sealing cover 101, the sealing cover 101 is clamped and connected with the L-shaped limiting block 11 through the rubber layer on the lower end face to carry out sealing and fixing, the trouble of natural gas leakage caused by re-pressure discharge and pressure relief of a pressure reducing device of the conventional natural gas pressure regulating valve is avoided, the threaded rod 103 is rotatably connected with the inner cavity of the pressure reducing box 9 through a bearing, the rubber layer is arranged on the lower end face of the sealing cover 101, the sealing plate 105 is made of rubber, the sealing device 12 comprises a supporting rod 1201, a T-shaped sliding groove 1202, a second spring 1203, a T-shaped sliding rod 1204 and a sealing block 1205, the supporting rod 1201 is fixedly connected with the outside of the threaded rod 103, the T-shaped sliding groove 1202 is arranged on one end face of the supporting rod 1201 far away from the threaded rod 103, and the second spring 1203 is fixedly connected with the bottom of the inner cavity of the T-shaped sliding groove 1202, one end, far away from the bottom of the inner cavity of the T-shaped sliding chute 1202, of the second spring 1203 is fixedly connected with a T-shaped sliding rod 1204, one end face, far away from the second spring 1203, of the T-shaped sliding rod 1204 is fixedly connected with a sealing block 1205, and the sealing block 1205 is made of hard rubber materials. A person holds the rotating cover 104 to rotate the threaded rod 103, the threaded rod 103 opens the fixed cylinder 15 through the threaded transmission sealing plate 105, the threaded rod 103 is reused to rotate the supporting rod 1201, the supporting rod 1201 drives the T-shaped sliding rod 1204 and the sealing block 1205 through the T-shaped sliding groove 1202, then the second spring 1203 in the inner cavity of the T-shaped sliding groove 1202 is used for bouncing the T-shaped sliding rod 1204 and the sealing block 1205 to seal and fix the communicating pipe 8, the sealing cover 101 is bounced by matching with the first spring 102, the sealing cover 101 is clamped and connected with the L-shaped limiting block 11 through the rubber layer on the lower end face to seal and fix, and therefore the problem that natural gas leaks due to the fact that the gas inlet is sealed and fixed when the pressure reducing device of the existing natural gas pressure regulating valve is used for pressure relief again is solved, the natural gas sensing probe 17 is arranged on the lower end face of the box cover 3, and the natural gas sensing probe 17 is electrically connected with the display screen 4 through an electric wire, the lower end face of the case cover 3 is provided with an emulsion pad 18, and the upper end face of the case cover 3 is provided with a glass window 20.

The present invention is not limited to the above preferred embodiments, and any modifications, equivalent substitutions, improvements, etc. within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The pressure reducing device of the natural gas pressure regulating valve is characterized by comprising a box body (1), wherein an air inlet (2) is formed in the left end face of the box body (1), a box cover (3) is rotatably connected to the upper edge of the rear end face of the box body (1) through a hinge (7), a display screen (4) is arranged on the upper end face of the box cover (3), a fixing bolt (5) is arranged on the front edge of the upper end face of the box cover (3), an air outlet (6) is formed in the right end face of the box body (1), the air inlet (2) is fixedly communicated with a pressure reducing box (9) through a communicating pipe (8), the left end face of the pressure reducing box (9) is fixedly communicated with a connecting pipe (13), the connecting pipe (13) is fixedly communicated with the air outlet (6), a pressure reducing device (10) is arranged in the inner cavity of the pressure reducing box (9), and a fixing cylinder (15) is fixedly communicated with the upper end face of the pressure reducing box (9), the pressure relief device is characterized in that the upper end face of the fixed cylinder (15) is uniformly provided with a pressure relief opening (16), and a sealing device (12) is arranged outside the pressure relief device (10).

2. The pressure reducing device of a natural gas pressure regulating valve according to claim 1, characterized in that an L-shaped limiting block (11) is fixedly connected to the inner cavity of the pressure reducing box (9), and the L-shaped limiting block (11) is made of rubber.

3. The pressure reducing device of the natural gas pressure regulating valve according to claim 1, characterized in that the upper end surface of the communicating pipe (8) is uniformly provided with a pressure gauge (14), the pressure gauge (14) is electrically connected with the display screen (4) through an electric wire, the inner part of the upper end surface of the box cover (3) is provided with a buzzer (19), and the buzzer (19) is electrically connected with the display screen (4) through an electric wire.

4. The pressure reducing device of the natural gas pressure regulating valve according to claim 1, wherein the pressure reducing device (10) comprises a sealing cover (101), a first spring (102), a threaded rod (103), a rotating cover (104) and a sealing plate (105), the rotating cover (104) is connected to the outside of the fixed cylinder (15) in a sliding manner, the threaded rod (103) is fixedly connected to the upper wall of the inner cavity of the rotating cover (104), the sealing plate (105) is connected to the outside of the threaded rod (103) in a threaded manner, the first spring (102) is fixedly connected to the lower end face of the sealing plate (105), the sealing cover (101) is fixedly connected to one end face, away from the sealing plate (105), of the first spring (102), and the sealing cover (101) is connected to the outside of the threaded rod (103) in a sliding manner.

5. The pressure reducing device of the natural gas pressure regulating valve according to claim 4, characterized in that the inner cavity of the pressure reducing box (9) is rotatably connected with a threaded rod (103) through a bearing, the lower end surface of the sealing cover (101) is provided with a rubber layer, and the sealing plate (105) is made of rubber.

6. The pressure reducing device of the natural gas pressure regulating valve according to claim 4, characterized in that the sealing device (12) comprises a supporting rod (1201), a T-shaped chute (1202), a second spring (1203), a T-shaped sliding rod (1204) and a sealing block (1205), the supporting rod (1201) is fixedly connected to the outside of the threaded rod (103), the T-shaped chute (1202) is arranged on one end face of the supporting rod (1201) far away from the threaded rod (103), the second spring (1203) is fixedly connected to the bottom of the inner cavity of the T-shaped chute (1202), the T-shaped sliding rod (1204) is fixedly connected to one end of the second spring (1203) far away from the bottom of the inner cavity of the T-shaped chute (1202), the sealing block (1205) is fixedly connected to one end face of the T-shaped sliding rod (1204) far away from the second spring (1203), and the sealing block (1205) is made of hard rubber.

7. The pressure reducing device of the natural gas pressure regulating valve according to claim 1, characterized in that a natural gas sensing probe (17) is arranged on the lower end face of the box cover (3), the natural gas sensing probe (17) is electrically connected with the display screen (4) through an electric wire, and a latex pad (18) is arranged on the lower end face of the box cover (3).

8. The pressure reducing device of a natural gas pressure regulating valve according to claim 1, characterized in that the upper end face of the case cover (3) is provided with a glass window (20).