CN220749222U

CN220749222U - Safety valve for natural gas pipeline

Info

Publication number: CN220749222U
Application number: CN202322278903.3U
Authority: CN
Inventors: 魏瑞福
Original assignee: Global-Set Valve Components Jiangsu Co ltd
Current assignee: Global-Set Valve Components Jiangsu Co ltd
Priority date: 2023-08-23
Filing date: 2023-08-23
Publication date: 2024-04-09
Anticipated expiration: 2033-08-23

Abstract

The utility model discloses a safety valve for a natural gas pipeline, which relates to the technical field of natural gas valves and comprises a valve body and a conveying pipe, wherein a leakage blocking reminding mechanism comprises a movable barrel, a movable plate, an alarm, an electric push rod, a first sealing gasket and a second sealing gasket, the movable barrel is arranged in the valve body, a movable groove is formed in the movable barrel, and a second spring is fixedly arranged in the movable groove; according to the technical scheme provided by the utility model, the leakage blocking reminding mechanism is adopted, when the second sealing gasket is damaged and leaked, the leaked gas can be in contact with the detector, after the detector detects the combustible gas, the detector alarms and transmits signals to the alarm, the electric push rod is started by the alarm and gives out sound alarm, the electric push rod stretches out to extrude the second sealing gasket to one side, so that the tightness of the joint of the valve body and the conveying pipe is improved, the leakage of the gas can be reduced, the leakage condition of personnel in a home is reminded, and the occurrence of safety accidents is reduced.

Description

Safety valve for natural gas pipeline

Technical Field

The utility model relates to the technical field of natural gas valves, in particular to a safety valve for a natural gas pipeline.

Background

Natural gas is one of safer fuel gases, which does not contain carbon monoxide, is lighter than air, is not easy to accumulate to form explosive gas, and has relatively higher safety than other fuel bodies, so that the natural gas has been increasingly applied to daily life of people.

At present, a sealing gasket for sealing is usually arranged between a valve and a natural gas pipeline, the existing natural gas valve has certain defects in use, a large amount of impurities can be adhered to the valve under the condition of long-term use, and the impurities can be permeated into the valve through gaps of the valve, so that the sealing gasket is influenced, but the valve is not provided with safety protection measures, when the sealing gasket is damaged, natural gas can leak indoors, if the state that the indoor natural gas is in a high concentration can not be found in time, safety accidents are extremely easy to cause.

Disclosure of Invention

The utility model aims to solve the technical problem of overcoming the defects of the prior art and providing a safety valve for a natural gas pipeline, which is used for solving the problem that the sealing gasket cannot be found in time after damage and air leakage occur in the prior art.

In view of the above, the utility model provides a safety valve for a natural gas pipeline, which comprises a valve body and a conveying pipe, wherein a valve clack and an adjusting piece are arranged in the valve body, and a leakage blocking reminding mechanism is arranged in the valve body;

the leakage blocking reminding mechanism comprises a movable barrel, a movable plate, an alarm, an electric push rod, a first sealing pad and a second sealing pad, wherein the movable barrel is installed inside the valve body, a movable groove is formed in the movable barrel, a second spring is fixedly installed inside the movable groove, the movable plate is fixedly installed at one end of the second spring, a circulating groove is formed in the movable plate, a detector is fixedly installed inside the circulating groove, the electric push rod is fixedly installed inside the valve body, the first sealing pad is fixedly installed at the output end of the electric push rod, and the second sealing pad is fixedly installed at one side of the first sealing pad.

Optionally, the alarm is fixedly installed inside the valve body.

Optionally, the adjusting member is rotatably connected inside the valve body, and the valve clack is fixedly installed at one end of the adjusting member.

Optionally, the valve body is internally provided with a movable cavity, a guide rail is fixedly arranged in the movable cavity, the movable cylinder is slidably connected to the side wall of the guide rail, and the movable cylinder is positioned in the movable cavity.

Optionally, a first spring is fixedly installed in the movable cavity, and the first spring is fixedly installed between one side of the movable cylinder and the inner wall of the movable cavity.

Optionally, a pressing plate is fixedly installed at one end of the movable plate, an inclined plate is fixedly installed at one side of the valve body, and a chamfer matched with the inclined plate is formed in one side of the pressing plate.

Optionally, a thread is formed at one end of the valve body, and a thread groove matched with the thread is formed in the inner wall of the conveying pipe.

From the above technical solutions, the embodiment of the present utility model has the following advantages:

1. according to the safety valve for the natural gas pipeline, the leakage blocking reminding mechanism is adopted, when the second sealing gasket is damaged and leaked, the leaked gas can be in contact with the detector, after the detector detects the combustible gas, the detector gives out a warning and transmits a signal to the alarm, the electric push rod is started by the alarm and gives out a sound warning, the electric push rod extends out to extrude the second sealing gasket to one side, so that the tightness of the joint of the valve body and the conveying pipe is improved, the leakage of the gas can be reduced, the leakage condition of personnel in a home is reminded, and the occurrence of safety accidents is reduced.

2. According to the safety valve for the natural gas pipeline, the movable plate can be always positioned between the movable cylinder and the conveying pipe through the arrangement of the second spring, and when the conveying pipe is required to be installed through the arrangement of the pressing plate, the pressing plate is pushed to one side of the movable groove by the inclined plate through pushing the movable cylinder into the movable cavity, so that the conveying pipe is more convenient to install, and the pressing plate or the movable plate is prevented from influencing the installation.

These features and advantages of the present utility model will be disclosed in detail in the following detailed description and the accompanying drawings.

Drawings

The utility model is further described with reference to the accompanying drawings:

FIG. 1 is a schematic diagram of the structure of the present utility model;

FIG. 2 is a schematic cross-sectional view of the present utility model;

fig. 3 is an enlarged schematic view of the structure of fig. 2 a according to the present utility model.

Reference numerals illustrate: 1. a valve body; 2. a delivery tube; 3. a movable cylinder; 5. an adjusting member; 6. a valve flap; 7. a movable cavity; 8. a guide rail; 9. a first spring; 10. a movable groove; 11. a second spring; 12. a movable plate; 13. a flow channel; 14. a detector; 15. a pressing plate; 16. a sloping plate; 17. an electric push rod; 18. a first gasket; 19. a second gasket; 20. an alarm.

Detailed Description

The technical solutions of the embodiments of the present utility model will be explained and illustrated below with reference to the drawings of the embodiments of the present utility model, but the following embodiments are only preferred embodiments of the present utility model, and not all embodiments. Based on the examples in the implementation manner, other examples obtained by a person skilled in the art without making creative efforts fall within the protection scope of the present utility model.

The following describes a safety valve for a natural gas pipeline according to an embodiment of the present utility model in detail with reference to the accompanying drawings.

Example 1

For easy understanding, referring to fig. 1 to 3, an embodiment of a safety valve for a natural gas pipeline provided by the utility model includes a valve body 1 and a delivery pipe 2, wherein a valve clack 6 and an adjusting member 5 are arranged in the valve body 1, and a leakage blocking reminding mechanism is arranged in the valve body 1;

the leakage blocking reminding mechanism comprises a movable barrel 3, a movable plate 12, an alarm 20, an electric push rod 17, a first sealing pad 18 and a second sealing pad 19, wherein the movable barrel 3 is installed inside a valve body 1, a movable groove 10 is formed in the movable barrel 3, a second spring 11 is fixedly installed inside the movable groove 10, the movable plate 12 is fixedly installed at one end of the second spring 11, a circulating groove 13 is formed in the movable plate 12, a detector 14 is fixedly installed inside the circulating groove 13, the detector 14 is a combustible gas alarm, the electric push rod 17 is fixedly installed inside the valve body 1, the first sealing pad 18 is fixedly installed at the output end of the electric push rod 17, the second sealing pad 19 is fixedly installed on one side of the first sealing pad 18, the alarm 20 is fixedly installed inside the valve body 1, the alarm 20 is connected with the detector 14 and the electric push rod 17, the electric push rod 17 is provided with a plurality of first sealing pads 18 and the second sealing pads 19 are circular ring pads.

It should be noted that, the second sealing gasket 19 is located the junction of conveyer pipe 2 and valve body 1, play sealed effect, first sealing gasket 18 is located inside valve body 1, when second sealing gasket 19 appears damaging the gas leakage, the gas that leaks can flow out through the clearance between movable tube 3 and the conveyer pipe 2, the gas that leaks can pass through circulation groove 13 and with the inside detector 14 of circulation groove 13 this moment, after detecting combustible gas, can report to the police and transmit the signal to alarm 20, start electric putter 17 and send audible alarm through alarm 20, make electric putter 17 stretch out, at this moment first sealing gasket 18 can extrude second sealing gasket 19 to one side, increase the leakproofness of valve body 1 and conveyer pipe 2 junction, so can reduce the gas leakage and remind the personnel at home to appear leaking the condition, make it close the master valve as early as possible, and handle the gas leakage condition, thereby reduce the circumstances of emergence incident.

In some embodiments, as shown in fig. 2, the adjusting member 5 is rotatably connected inside the valve body 1, and the valve flap 6 is fixedly installed at one end of the adjusting member 5.

The valve flap 6 can be controlled by rotating the adjusting member 5, so that the opening and closing of the valve can be controlled.

In some embodiments, as shown in fig. 3, one end of the valve body 1 is provided with threads, and the inner wall of the conveying pipe 2 is provided with a thread groove matched with the threads.

The pipe 2 and the valve body 1 can be attached by rotating the pipe 2 and the valve body 1 thereafter by providing a screw and a screw groove.

Example 2

In some embodiments, as shown in fig. 2, a movable cavity 7 is formed inside the valve body 1, a guide rail 8 is fixedly mounted inside the movable cavity 7, the movable cylinder 3 is slidably connected to the side wall of the guide rail 8, the movable cylinder 3 is located inside the movable cavity 7, a first spring 9 is fixedly mounted inside the movable cavity 7, the first spring 9 is fixedly mounted between one side of the movable cylinder 3 and the inner wall of the movable cavity 7, a pressing plate 15 is fixedly mounted at one end of the movable plate 12, an inclined plate 16 is fixedly mounted at one side of the valve body 1, and a chamfer matched with the inclined plate 16 is formed at one side of the pressing plate 15.

It should be noted that, through setting up the second spring 11 can make fly leaf 12 be located between fly leaf 3 and the conveyer pipe 2 all the time, when needs installation conveyer pipe 2 through setting up clamp plate 15, through pushing into the activity chamber 7 inside with fly leaf 3, make clamp plate 15 by swash plate 16 push to activity groove 10 one side, make conveyer pipe 2 installation more convenient, avoid clamp plate 15 or fly leaf 12 to influence the installation.

The detector 14, the electric push rod 17 and the alarm 20 are well known components and will not be described in detail herein.

Working principle: during installation, through pushing the movable cylinder 3 into the movable cavity 7, the pressing plate 15 is pushed to one side of the movable groove 10 by the inclined plate 16, then the conveying pipe 2 and the valve body 1 rotate behind the inclined plate, the conveying pipe 2 and the valve body 1 can be installed, when the second sealing gasket 19 is damaged and air leakage occurs during use, leaked air flows out through a gap between the movable cylinder 3 and the conveying pipe 2, the leaked air can pass through the circulation groove 13 and is in contact with the detector 14 in the circulation groove 13, after the detector 14 detects combustible gas, the detector can warn and transmit signals to the alarm 20, the electric push rod 17 is started through the alarm 20 and gives out sound alarm, the electric push rod 17 extends out, and at the moment, the first sealing gasket 18 can squeeze the second sealing gasket 19 to one side to increase the sealing performance of the joint of the valve body 1 and the conveying pipe 2, so that leakage of air can be reduced and leakage conditions of personnel at home can be reminded.

The above embodiments are merely for illustrating the technical solution of the present application, and not for limiting the same; although the present application has been described in detail with reference to the foregoing embodiments, it should be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the corresponding technical solutions.

Claims

1. A safety valve for natural gas pipelines, characterized in that: the air leakage blocking reminding device comprises a valve body (1) and a conveying pipe (2), wherein a valve clack (6) and an adjusting piece (5) are arranged inside the valve body (1), and an air leakage blocking reminding mechanism is arranged inside the valve body (1);

the utility model provides a gas leakage shutoff reminding mechanism includes movable cylinder (3), fly leaf (12), alarm (20), electric putter (17), first sealed pad (18) and second sealed pad (19), inside valve body (1) is installed to movable cylinder (3), inside movable groove (10) of having seted up of movable cylinder (3), inside fixed mounting of movable groove (10) has second spring (11), fly leaf (12) fixed mounting is in second spring (11) one end, circulation groove (13) have been seted up inside of fly leaf (12), circulation groove (13) internally fixed mounting has detector (14), electric putter (17) fixed mounting is in inside valve body (1), first sealed pad (18) fixed mounting is in electric putter (17) output, second sealed pad (19) fixed mounting is in first sealed pad (18) one side.

2. A safety valve for a natural gas pipeline as claimed in claim 1, wherein: the alarm (20) is fixedly arranged inside the valve body (1).

3. A safety valve for a natural gas pipeline as claimed in claim 1, wherein: the regulating piece (5) is rotationally connected inside the valve body (1), and the valve clack (6) is fixedly arranged at one end of the regulating piece (5).

4. A safety valve for a natural gas pipeline as claimed in claim 1, wherein: the valve is characterized in that a movable cavity (7) is formed in the valve body (1), a guide rail (8) is fixedly arranged in the movable cavity (7), the movable cylinder (3) is slidably connected to the side wall of the guide rail (8), and the movable cylinder (3) is located in the movable cavity (7).

5. A safety valve for a natural gas pipeline as defined in claim 4, wherein: the movable cavity (7) is internally and fixedly provided with a first spring (9), and the first spring (9) is fixedly arranged between one side of the movable cylinder (3) and the inner wall of the movable cavity (7).

6. A safety valve for a natural gas pipeline as claimed in claim 1, wherein: the movable plate (12) one end fixed mounting has clamp plate (15), valve body (1) one side fixed mounting has swash plate (16), clamp plate (15) one side seted up with swash plate (16) assorted chamfer.

7. A safety valve for a natural gas pipeline as claimed in claim 1, wherein: one end of the valve body (1) is provided with threads, and the inner wall of the conveying pipe (2) is provided with thread grooves matched with the threads.