CN216768475U

CN216768475U - Safety valve for gas storage tank

Info

Publication number: CN216768475U
Application number: CN202220472796.0U
Authority: CN
Inventors: 叶盛
Original assignee: Individual
Current assignee: Zhongbai Valve Co.,Ltd.
Priority date: 2022-03-07
Filing date: 2022-03-07
Publication date: 2022-06-17
Anticipated expiration: 2032-03-07

Abstract

The utility model discloses a safety valve for a gas storage tank, which comprises a valve body, wherein a first valve core and a second valve core are arranged inside the valve body; the first valve core comprises a valve clack and a valve rod arranged on the other surface of the valve clack, the valve rod penetrates through the end cover and then slides on the end cover, and a spring is arranged on the valve rod and is used for urging the first valve core to be abutted against the second valve core; the second valve core comprises a support plate and a connecting rod mounted on the support plate; the circle centers of the connecting rod and the supporting plate are provided with air inlets, the valve clack is driven to move upwards through the air inlets, so that an air source enters the space between the valve clack and the supporting plate through the air inlets, and then the air source is discharged through a round hole formed in the valve clack and an air outlet formed in the valve rod. Therefore, the device simplifies the structure of the existing valve body, is convenient for connecting the valve body with the gas storage tank and assembling and disassembling the equipment, and further reduces the production, assembly and maintenance costs of the safety valve.

Description

Safety valve for gas storage tank

Technical Field

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

Background

The safety valve is a special valve which is in a normally closed state under the action of external force, when the pressure of a medium in equipment or a pipeline rises to exceed a specified value, the medium pressure in the pipeline or the equipment is prevented from exceeding the specified value by discharging the medium to the outside of the system, belongs to the automatic valve class, is mainly used for boilers, pressure vessels and pipelines, controls the pressure to be not more than the specified value, and plays an important role in protecting personal safety and equipment operation. However, the internal structure of the existing safety valve is complex and precise, so that the safety valve is inconvenient to assemble, short in service life and high in maintenance cost.

SUMMERY OF THE UTILITY MODEL

The present invention is directed to a safety valve for an air tank, which solves the above problems in the related art.

In order to achieve the purpose, the utility model provides the following technical scheme: a safety valve for an air storage tank comprises a valve body, wherein a first valve core and a second valve core are arranged inside the valve body; the valve body is connected with one end of the valve body through an end cover and connected with the other end of the valve body through a connecting piece, so that the first valve core and the second valve core are assembled in the valve body; the first valve core comprises a valve clack and a valve rod arranged on the other surface of the valve clack; the valve rod is also provided with a spring, and the spring urges the first valve core to abut against the second valve core; the second valve core comprises a support plate and a connecting rod mounted on the support plate; the connecting rod with the centre of a circle department of backup pad is equipped with the air inlet, through the air supply that the air inlet was introduced, impels the valve clack upwards removes to get into the air supply through the air inlet valve the valve clack with between the backup pad, the rethread the round hole that is equipped with on the valve clack and the gas outlet that is equipped with on the valve rod is with the air supply discharge.

As a preferred technical scheme of the utility model: still be equipped with the bolt on the valve clack, just still be equipped with on the backup pad with the slot of bolt looks adaptation.

As a preferred technical scheme of the utility model: the connecting rod with the connecting piece sets up with one heart, just the connecting rod towards the one end of connecting piece through the external screw thread that is equipped with the internal thread hole screw-thread fit that is equipped with on the connecting piece.

As a preferred technical scheme of the utility model: the both ends of connecting piece all are equipped with connecting portion, and pass through connecting portion with the one end screw-thread fit of valve body, so that realize the valve body with the dismouting of connecting piece.

As a preferred technical scheme of the utility model: the end cover is in threaded fit with the other end of the valve body.

By adopting the technical scheme, the utility model has the beneficial effects that: 1. because the valve body is arranged and the first valve core and the second valve core are arranged in the valve body, and the first valve core is driven to move in the valve body through the spring, the basic function of the valve body is further completed;

2. the two valve cores are assembled in the valve body by the connecting piece and the end cover, so that the internal structure of the valve body is simplified, and the end cover and the connecting piece are movably connected with the valve body, so that the valve body can be directly manufactured by adopting a pipeline, the manufacturing cost of the valve body is reduced, meanwhile, all parts can be independently produced, the assembly line operation is facilitated, and the production and assembly cost of the equipment can be reduced;

3. the connecting piece is arranged, so that the valve body can be conveniently installed on the air storage tank even if the second valve core is assembled in the valve body, and the end cover is arranged, so that the first valve core can be conveniently assembled and disassembled and replaced;

4. in conclusion, the device simplifies the structure of the existing valve body, is convenient for the connection of the valve body and the gas storage tank and the assembly and disassembly of the equipment, further reduces the production, assembly and maintenance costs of the safety valve, and particularly, all parts of the equipment can be completely disassembled, so that the volume of the equipment is reduced, and the transportation and storage of the equipment are facilitated.

Drawings

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

FIG. 2 is a partial cross-sectional view of the body construction of the present invention;

FIG. 3 is a schematic view of a main structure of a first valve cartridge according to the present invention;

FIG. 4 is a schematic structural diagram of a second valve cartridge of the present invention;

fig. 5 is a schematic view of the main structure of the connector of the present invention.

In the figure: 1. an end cap; 2. a valve body; 3. a connecting member; 4. a spring; 5. a first valve spool; 6. an air outlet; 7. a second valve core; 8. an air inlet; 9. a connecting rod; 10. a support plate; 11. a slot; 12. a valve stem; 13. a valve flap; 14. a bolt; 15. a circular hole; 16. an internally threaded bore; 17. a connecting portion.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the utility model and are not to be construed as limiting the utility model. In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "upper surface", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are only for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically connected, electrically connected or can communicate with each other; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

Referring to fig. 1-5, an embodiment of the present invention is shown: a safety valve for a gas storage tank comprises a valve body 2, wherein a first valve core 5 and a second valve core 7 are arranged inside the valve body 2; the first valve core 5 and the second valve core 7 are assembled in the valve body 2 by connecting the end cover 1 with one end of the valve body 2 and connecting the connecting piece 3 with the other end of the valve body 2; the first valve core 5 comprises a valve clack 13 and a valve rod 12 arranged on the other surface of the valve clack 13; the valve rod 12 is also provided with a spring 4, and the spring 4 urges the first valve core 5 to be abutted against the second valve core 7; the second spool 7 includes a support plate 10 and a link 9 mounted on the support plate 10; the air inlet 8 is arranged at the circle center of the connecting rod 9 and the supporting plate 10, the valve clack 13 is enabled to move upwards through an air source introduced through the air inlet 8, so that the air source enters between the valve clack 13 and the supporting plate 10 through the air inlet 8, and then the air source is discharged through the round hole 15 arranged on the valve clack 13 and the air outlet 6 arranged on the valve rod 12.

In summary, the valve body 2 is arranged, the first valve core 5 and the second valve core 7 are arranged in the valve body 2, and the first valve core 5 is urged to move in the valve body 2 by the spring 4, so that the basic functions of the valve body 2 are completed; meanwhile, the two valve cores are assembled in the valve body 2 by using the connecting piece 3 and the end cover 1, so that the internal structure of the valve body 2 is simplified;

on the basis, the end cover 1 and the connecting piece 3 are movably connected with the valve body 2, so that the valve body 2 can be directly made of pipelines, the manufacturing cost of the valve body 2 is reduced, and further, all parts of the equipment can be independently produced, the streamlined operation is facilitated, and the production and assembly cost of the equipment can be reduced;

further, even if the connecting piece 3 is arranged and the second valve core 7 is assembled in the valve body 2, the valve body 2 is convenient to mount on the air storage tank, and meanwhile, the arrangement of the end cover 1 is convenient to assemble the first valve core 5 and also convenient to disassemble, assemble and replace the first valve core 5;

in conclusion, the device simplifies the structure of the existing valve body, is convenient for the connection of the valve body 2 and the gas storage tank and the assembly and disassembly of the equipment, further reduces the production, assembly and maintenance costs of the safety valve, and particularly, all parts of the equipment can be completely disassembled, so that the volume of the equipment is reduced, and the transportation and storage of the equipment are facilitated.

In order to further improve the sealing performance of the device, a latch 14 is further arranged on the valve flap 13, and a slot 11 matched with the latch 14 is further arranged on the support plate 10. Because the bolt 14 is matched and connected with the slot 11, the bolt 14 can be used for sealing the air inlet 8, and the leakage of an air source is reduced.

On the basis of the scheme, the connecting rod 9 and the connecting piece 3 are arranged concentrically, and one end, facing the connecting piece 3, of the connecting rod 9 is in threaded fit with the internal threaded hole 16 formed in the connecting piece 3 through the arranged external thread, so that the second valve spool 7 is reliably connected with the connecting piece 3.

Further, the both ends of connecting piece 3 all are equipped with connecting portion 17, and pass through connecting portion 17 with the one end screw-thread fit of valve body 2, so that realize valve body 2 with the dismouting of connecting piece 3.

Further, the end cap 1 is screw-engaged with the other end of the valve body 2.

Through the mode, the assembly process of the equipment is further simplified, and the equipment is further convenient for maintenance personnel to overhaul and maintain and replace parts.

The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the described embodiments. It will be apparent to those skilled in the art that various changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the utility model, and the scope of protection is still within the scope of the utility model.

Claims

1. A relief valve that gas holder was used which characterized in that: the valve comprises a valve body (2), wherein a first valve core (5) and a second valve core (7) are arranged in the valve body (2);

the valve body (2) is connected with one end of the valve body (2) through an arranged end cover (1) and connected with the other end of the valve body (2) through an arranged connecting piece (3), so that the first valve core (5) and the second valve core (7) are assembled in the valve body;

the first valve core (5) comprises a valve clack (13) and a valve rod (12) arranged on the other surface of the valve clack (13);

the valve rod (12) is also provided with a spring (4), and the spring (4) urges the first valve core (5) to be abutted against the second valve core (7);

the second valve core (7) comprises a support plate (10) and a connecting rod (9) arranged on the support plate (10);

connecting rod (9) with the centre of a circle department of backup pad (10) is equipped with air inlet (8), through the air supply that air inlet (8) were introduced, makes valve clack (13) rebound to get into the air supply through air inlet (8) valve clack (13) with between backup pad (10), the rethread round hole (15) that are equipped with on valve clack (13) and gas outlet (6) that are equipped with on valve rod (12) discharge the air supply.

2. A safety valve for a gas tank according to claim 1, wherein: still be equipped with bolt (14) on valve clack (13), just still be equipped with on backup pad (10) with slot (11) of bolt (14) looks adaptation.

3. A safety valve for a gas tank according to claim 1 or 2, characterized in that: the connecting rod (9) and the connecting piece (3) are concentrically arranged, and the connecting rod (9) faces one end of the connecting piece (3) and is in threaded fit with an internal thread hole (16) formed in the connecting piece (3) through an external thread formed in the connecting piece.

4. A safety valve for a gas tank according to claim 3, wherein: the both ends of connecting piece (3) all are equipped with connecting portion (17), and pass through connecting portion (17) with the one end screw-thread fit of valve body (2), so that realize valve body (2) with the dismouting of connecting piece (3).

5. A safety valve for a gas tank according to claim 4, wherein: the end cover (1) is in threaded fit with the other end of the valve body (2).