CN214119099U

CN214119099U - Protection device of safety valve for natural gas opening

Info

Publication number: CN214119099U
Application number: CN202022631554.5U
Authority: CN
Inventors: 曾利平
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-11-15
Filing date: 2020-11-15
Publication date: 2021-09-03
Anticipated expiration: 2030-11-15

Abstract

The utility model provides a natural gas opens protection device who adopts relief valve, including natural gas pipe, natural gas pipe's outside fixedly connected with protective frame, the inside fixedly connected with of protective frame seals the chamber, and the inside of sealing the chamber is provided with first pressure sensor, and natural gas pipe's fixed surface is connected with the relief valve, and one side of relief valve is provided with collects the chamber, collects the first safe pipe of outer end fixedly connected with and the safe pipe of second in chamber, and natural gas pipe's fixed surface is connected with and seals the tube head. The safety valve and the pipe body structure connected with the natural gas pipe are protected through the protection frame, the first pressure sensor arranged inside the protection frame is protected through the closed cavity, the natural gas in the natural gas pipe is convenient to convey and recover through the safety pipe structure arranged on the collection cavity and the outer end, and the natural gas collected inside the collection cavity is subjected to air pressure detection through the second pressure sensor and the alarm.

Description

Protection device of safety valve for natural gas opening

Technical Field

The utility model relates to a natural gas technical field, more specifically the utility model relates to a natural gas opens protection device who adopts the relief valve.

Background

Natural gas is mainly composed of alkanes, most of which are methane, with small amounts of ethane, propane and butane, and generally contains hydrogen sulfide, carbon dioxide, nitrogen and moisture, and small amounts of carbon monoxide and trace amounts of noble gases such as helium and argon. To aid in leak detection, mercaptans, tetrahydrothiophenes, and the like are also used to odorize the natural gas before it is sent to the end user.

In the domestic natural gas pipeline gas transmission, the safe operation of the natural gas pipeline gas transmission system is directly related to the life and property safety of thousands of households. The direct-acting pressure regulators widely used at present have the pressure regulating devices separated from the safety protection devices, and the greatest weakness is that the cut-off signal is obtained from a gas transmission pipeline by a signal pipe. Because the signal tube is arranged outside the voltage regulator, and the voltage regulator is arranged outdoors, the safety protection device is easy to be damaged by external force in the operation process, and further brings great potential safety hazard to the voltage regulating device.

However, besides the safety problem of explosion caused by overpressure, the natural gas pipeline cannot directly use a safety valve to discharge overpressure natural gas into a room, which only solves the explosion problem caused by overpressure, and the leaked natural gas is also a great safety problem.

Disclosure of Invention

The utility model discloses natural gas opens protection device's that adopts the relief valve purpose and efficiency are reached by following specific technological means:

the utility model provides a natural gas opens protection device who adopts relief valve, including natural gas pipe, natural gas pipe's outside fixedly connected with protective frame, the inside fixedly connected with of protective frame seals the chamber, the inside in closed chamber is provided with first pressure sensor, natural gas pipe's fixed surface is connected with the relief valve, one side of relief valve is provided with collects the chamber, collect the first safe pipe of outer end fixedly connected with and the safe pipe of second in chamber, natural gas pipe's fixed surface is connected with and seals the tube head, the inside of first safe pipe is provided with the solenoid valve, the inside embedding of collecting the chamber is provided with second pressure sensor and alarm, natural gas pipe's outside correspondence is provided with backflow pipeline, fixedly connected with protective pipe frame between backflow pipeline and the natural gas pipe.

Further preferred embodiments: the protection frame is located natural gas pipe's outside surface, surrounds the setting to natural gas pipe's a side surface, and the surface of protection frame can set up visible plastic board.

Further preferred embodiments: the closed cavity is fixedly connected to the surface of the natural gas pipe, and the surface of the closed cavity is provided with a visible transparent layer.

Further preferred embodiments: the collecting cavity is fixedly connected with the natural gas pipe, the top end of the collecting cavity is elliptical, and the bottom end of the collecting cavity is vertically connected with the natural gas pipe.

Further preferred embodiments: the first safety pipe, the second safety pipe and the collecting cavity are communicated, and the front end of the first safety pipe is connected with the closed pipe head and is communicated with the natural gas pipe.

Further preferred embodiments: the second safety pipe is communicated with the return pipeline.

Further preferred embodiments: the second pressure sensor and the alarm are located inside the bottom end of the collecting cavity, and a filter plate is arranged between the bottom end of the collecting cavity and the top end space.

Further preferred embodiments: the return pipeline is communicated and connected with the second safety pipe at the same time.

Has the advantages that:

this kind of natural gas opens protection device who adopts the relief valve, protects relief valve and body structure that natural gas pipe connects through the protective frame.

This kind of natural gas opens protection device who adopts the relief valve reaches certain safeguard effect through the first pressure sensor of closed chamber to inside setting.

This kind of natural gas opens protection device who adopts the relief valve, through the safety tube structure of collecting chamber and outer end setting, is convenient for carry the recovery to the natural gas in the natural gas pipe.

This kind of natural gas opens the protection device who adopts the relief valve, carries out atmospheric pressure to the natural gas of collecting the intracavity portion through second pressure sensor and alarm and detects.

Drawings

Fig. 1 is a cross-sectional view of the overall structure of the present invention.

Fig. 2 is an enlarged view of the structure at a of the present invention.

In FIGS. 1-2: the natural gas pipe comprises a natural gas pipe 1, a protective frame 2, a closed cavity 3, a first pressure sensor 4, a safety valve 5, a closed pipe head 6, a first safety pipe 7, an electromagnetic valve 8, a collecting cavity 9, a second safety pipe 10, a backflow pipeline 11, a protective pipeline frame 12, a second pressure sensor 13 and an alarm 14.

Detailed Description

As shown in figures 1 to 2:

the utility model provides a natural gas opens protection device who adopts relief valve, including natural gas pipe 1, natural gas pipe 1's outside fixedly connected with protecting frame 2, protecting frame 2's inside fixedly connected with seals chamber 3, the inside of sealing chamber 3 is provided with first pressure sensor 4, natural gas pipe 1's fixed surface is connected with relief valve 5, one side of relief valve 5 is provided with collects chamber 9, collect the first safe pipe 7 of the first safe pipe of outer end fixedly connected with and the safe pipe 10 of second of chamber 9, natural gas pipe 1's fixed surface is connected with and seals tube head 6, the inside of first safe pipe 7 is provided with solenoid valve 8, the inside embedding of collecting chamber 9 is provided with second pressure sensor 13 and alarm 14, natural gas pipe 1's the outside correspondence is provided with backflow pipeline 11, fixedly connected with protective pipe frame 12 between backflow pipeline 11 and the natural gas pipe 1.

Wherein, protection frame 2 is located natural gas pipe 1's outside surface, surrounds the setting to one side surface of natural gas pipe 1, and protection frame 2's surface can set up visual plastic board, protects safety valve and body structure that natural gas pipe 1 is connected through protection frame 2.

Wherein, closed chamber 3 fixed connection is on natural gas pipe 1's surface, and closed chamber 3's surface sets up to visual stratum lucidum, reaches certain guard effect through closed chamber 3 to the inside first pressure sensor 4 that sets up.

Wherein, collect chamber 9 while fixed connection natural gas pipe 1, and collect 9 tops in chamber and set up to the ellipse circular, natural gas pipe 1 is connected perpendicularly to the bottom.

Wherein, the first safety tube 7, the second safety tube 10 and the collecting cavity 9 are arranged in a communicating way, the front end of the first safety tube 7 is connected with the closed tube head 6 and is communicated with the natural gas tube 1.

Wherein, the second safety pipe 10 is communicated with the return pipeline 11, and the natural gas in the natural gas pipe 1 is conveniently conveyed and recovered through the collecting cavity 9 and the safety pipe structure arranged at the outer end.

Wherein, second pressure sensor 13 and alarm 14 are located the bottom inside of collecting chamber 9, and set up the filter plate between the bottom of collecting chamber 9 and the headspace, carry out atmospheric pressure to the natural gas of collecting the inside collection of chamber 9 through second pressure sensor 13 and alarm 14 and detect.

Wherein, the return pipeline 11 is communicated with the second safety pipe 10 at the same time.

The working principle is as follows:

the concrete using method and the effect of this embodiment, first pressure sensor 4 detects the natural gas atmospheric pressure inside natural gas pipe 1, when atmospheric pressure detects and surpasses the setting value, cut through relief valve 5 to the natural gas inside natural gas pipe 1, avoid the natural gas to carry, at this moment solenoid valve 8 receives external control device and opens, the natural gas inside natural gas pipe 1 is carried to collecting chamber 9 through first safety pipe 7, rethread second safety pipe 10 is arranged to backflow pipeline 11, arrange external equipment, when the natural gas is collected in collecting chamber 9, collect the second pressure sensing 13 inside chamber 9 and detect it, when atmospheric pressure surpasses a definite value, through external control device and mainboard structure, control alarm 14 operates.

Claims

1. The utility model provides a protection device that natural gas opened and adopts relief valve, includes natural gas pipe (1), its characterized in that: the outer side of the natural gas pipe (1) is fixedly connected with a protection frame (2), the inner portion of the protection frame (2) is fixedly connected with a closed cavity (3), the inner portion of the closed cavity (3) is provided with a first pressure sensor (4), the surface of the natural gas pipe (1) is fixedly connected with a safety valve (5), one side of the safety valve (5) is provided with a collection cavity (9), the outer end of the collection cavity (9) is fixedly connected with a first safety pipe (7) and a second safety pipe (10), the surface of the natural gas pipe (1) is fixedly connected with a closed pipe head (6), the inner portion of the first safety pipe (7) is provided with an electromagnetic valve (8), the inner portion of the collection cavity (9) is embedded with a second pressure sensor (13) and an alarm (14), the outer side of the natural gas pipe (1) is correspondingly provided with a backflow pipeline (11), and a protection pipeline frame (12) is fixedly connected between the backflow pipeline (11) and the natural gas pipe (1).

2. The protection device for a safety valve for natural gas cut-off according to claim 1, wherein: the protection frame (2) is located the outside surface of natural gas pipe (1), surrounds the setting to a side surface of natural gas pipe (1), and the surface of protection frame (2) can set up visible plastic board.

3. The protection device for a safety valve for natural gas cut-off according to claim 1, wherein: the closed cavity (3) is fixedly connected to the surface of the natural gas pipe (1), and the surface of the closed cavity (3) is a visible transparent layer.

4. The protection device for a safety valve for natural gas cut-off according to claim 1, wherein: collect chamber (9) while fixed connection natural gas pipe (1), and collect chamber (9) top and set up to ellipse circular, natural gas pipe (1) is connected perpendicularly to the bottom.

5. The protection device for a safety valve for natural gas cut-off according to claim 1, wherein: the first safety pipe (7), the second safety pipe (10) and the collecting cavity (9) are communicated, and the front end of the first safety pipe (7) is connected with the closed pipe head (6) and is communicated with the natural gas pipe (1).

6. The protection device for a safety valve for natural gas cut-off according to claim 1, wherein: the second safety pipe (10) is communicated with the return pipeline (11).

7. The protection device for a safety valve for natural gas cut-off according to claim 1, wherein: the second pressure sensor (13) and the alarm (14) are located inside the bottom end of the collecting cavity (9), and a filter plate is arranged between the bottom end of the collecting cavity (9) and the top end space.

8. The protection device for a safety valve for natural gas cut-off according to claim 1, wherein: the return pipeline (11) is communicated and connected with the second safety pipe (10) at the same time.