CN216242530U

CN216242530U - Automatic opening and closing pressure relief explosion-proof safety valve for pipeline system

Info

Publication number: CN216242530U
Application number: CN202122626387.XU
Authority: CN
Inventors: 张宗锋
Original assignee: Exxon Industries Huizhou Co ltd
Current assignee: Exxon Industries Huizhou Co ltd
Priority date: 2021-10-29
Filing date: 2021-10-29
Publication date: 2022-04-08
Anticipated expiration: 2031-10-29

Abstract

The utility model relates to the technical field of safety valves, in particular to an automatic opening and closing pressure relief and explosion prevention safety valve for a pipeline system, which comprises a first chamber, the lower end surface of the first chamber is communicated with an air inlet, the upper end surface of the first chamber is provided with a first through hole, a second chamber is arranged on the upper end surface of the first chamber and positioned at the periphery of the first through hole, a second through hole is arranged on the upper end surface of the second chamber, a push block is arranged in the second through hole, the end surface of the outer side of the push block is provided with threads, the push block is in threaded connection with the second through hole, a limit plate is arranged on the lower end surface of the push block, the automatic opening and closing pressure relief and explosion prevention safety valve for the pipeline system solves the problems that the prior art can not conveniently adjust the pressure threshold value, and the alarm can not be given when the pressure is released so as to inform the operator that the safety valve starts to work.

Description

Automatic opening and closing pressure relief explosion-proof safety valve for pipeline system

Technical Field

The utility model relates to the technical field of safety valves, in particular to an automatic opening and closing pressure relief and explosion prevention safety valve for a pipeline system.

Background

The safety valve is in a normally closed state under the action of external force, when the medium pressure in equipment or a pipeline rises and exceeds a specified value, the medium pressure in the pipeline or the equipment is prevented from exceeding a special valve of a specified value by discharging the medium to the outside of the system, the safety valve belongs to the class of automatic valves, and is mainly used for boilers, pressure vessels and pipelines, the control pressure does not exceed the specified value, and plays an important role in protecting personal safety and equipment operation, and the safety valve can be used only by a pressure test, but the existing safety valve cannot conveniently adjust a pressure threshold value, and cannot alarm to inform an operator that the safety valve starts working when working, and an operator is reminded to check and repair.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the defects that the pressure threshold value cannot be conveniently adjusted, an alarm cannot be given to inform an operator that the safety valve starts working during pressure relief and the like in the prior art, and provides an automatic opening and closing pressure relief and explosion prevention safety valve of a pipeline system.

In order to achieve the purpose, the utility model adopts the following technical scheme:

an automatic opening and closing pressure relief and explosion prevention safety valve of a pipeline system is designed, and comprises a first cavity, wherein an air inlet is communicated with the lower end face of the first cavity, a first through hole is formed in the upper end face of the first cavity, a second cavity is arranged on the upper end face of the first cavity and positioned at the periphery of the first through hole, a second through hole is formed in the upper end face of the second cavity, a push block is arranged in the second through hole, threads are arranged on the outer end face of the push block, the push block is in threaded connection with the second through hole, a limit plate is arranged on the lower end face of the push block, a telescopic rod is arranged on the lower end face of the limit plate, a base is rotatably connected to the bottom of the telescopic rod, a sealing block is arranged on the lower end face of the base and abutted against the first through hole, and a spring is connected between the upper end face of the base and the lower end face of the limit plate, the sound-producing device comprises a shell, a through groove is formed in one side end face of the shell, a baffle is inserted in the through groove, a third through hole is formed in the upper end face of the baffle, an elastic sheet is arranged on the upper end face of the baffle close to the third through hole, and one end of the elastic sheet extends to the position above the third through hole.

Preferably, a magnet is arranged on the upper end face of the baffle and is attracted with the outer end face of the shell.

Preferably, a first sealing gasket is arranged on the lower end face of the air inlet.

Preferably, a turntable is arranged on the upper end face of the push block, and anti-skid grains are arranged on the end face of the outer side of the turntable.

Preferably, a first sealing gasket is arranged at the abutting position of the sealing block and the first through hole.

The utility model provides an automatic opening and closing pressure relief and explosion prevention safety valve for a pipeline system, which has the beneficial effects that: through the push block which is in threaded connection with the second through hole, the push block can be rotated to push the limiting plate to compress the spring, so that the elastic force of the spring is changed, and the other end of the spring pushes the base to change the abutting force between the sealing block and the first through hole; through the arranged sound-producing device, when the airflow is discharged from the air outlet, the airflow passes through the elastic sheet, so that the elastic sheet vibrates and produces sound; through the telescopic link that sets up, can make sealed piece along telescopic link vertical displacement, prevent the skew in order to cause sealing performance to reduce.

Drawings

Fig. 1 is a schematic structural diagram of an automatic opening and closing pressure relief and explosion prevention safety valve of a pipeline system provided by the utility model;

FIG. 2 is an enlarged structural diagram of an area A of the automatic opening and closing pressure relief and explosion prevention safety valve of the pipeline system provided by the utility model;

fig. 3 is a schematic cross-sectional structural view of an automatic opening and closing pressure relief and explosion prevention safety valve of a pipeline system according to the present invention.

In the figure: 1. a first chamber; 101. a first through hole; 102. a first gasket; 2. an air inlet; 201. a second gasket; 3. a second chamber; 301. a second through hole; 4. an air outlet; 5. a housing; 501. a through groove; 502. a baffle plate; 503. a magnet; 504. a third through hole; 505. a spring plate; 6. a sealing block; 7. a base; 8. a telescopic rod; 9. a spring; 10. a limiting plate; 11. a push block; 1101. a thread; 12. a turntable; 1201. and (4) anti-skid lines.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in 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.

Referring to fig. 1-3, an automatic opening and closing pressure relief and explosion protection safety valve for a pipeline system comprises a first chamber 1, an air inlet 2 is communicated with the lower end face of the first chamber 1, a first through hole 101 is arranged on the upper end face of the first chamber 1, a second chamber 3 is arranged on the upper end face of the first chamber 1 and positioned at the periphery of the first through hole 101, a second through hole 301 is arranged on the upper end face of the second chamber 3, a push block 11 is arranged in the second through hole 301, a thread 1101 is arranged on the outer end face of the push block 11, the push block 11 is in threaded connection with the second through hole 301, a limit plate 10 is arranged on the lower end face of the push block 11, a telescopic rod 8 is arranged on the lower end face of the limit plate 10, a base 7 is rotatably connected to the bottom of the telescopic rod 8, a sealing block 6 is arranged on the lower end face of the base 7, the sealing block 6 is abutted to the first through hole 101, a spring 9 is connected between the upper end face of the base 7 and the lower end face of the limit plate 10, the gas outlet 4 is communicated with one side end face of the second chamber 3, the output end of the gas outlet 4 is communicated with a sound producing device, the sound producing device comprises a shell 5, a through groove 501 is formed in one side end face of the shell 5, a baffle plate 502 is inserted in the through groove 501, a third through hole 504 is formed in the upper end face of the baffle plate 502, an elastic sheet 505 is arranged on the upper end face of the baffle plate 502 close to the third through hole 504, and one end of the elastic sheet 505 extends to the upper side of the third through hole 504.

The push block 11 which is in threaded connection with the second through hole 301 can rotate the push block 11 to enable the push block 11 to push the limiting plate 10 to enable the spring 9 to be compressed, so that the elastic force of the spring 9 is changed, and the other end of the spring 9 pushes the base 7 to enable the abutting force between the sealing block 6 and the first through hole 101 to be changed; the arranged sound generating device can enable the elastic sheet 505 to vibrate and generate sound when the air flow is discharged from the air outlet 4 and passes through the elastic sheet 505; the telescopic rod 8 can enable the sealing block 6 to vertically displace along the telescopic rod 8, and the sealing performance is prevented from being reduced due to deviation.

A working mode; during operation, with this relief valve through air inlet 2 and pipeline continuous, it makes ejector pad 11 promote limiting plate 10 and makes spring 9 compress to rotate ejector pad 11, change the elasticity size of spring 9 with this, and make spring 9's the other end promote base 7 and make the butt dynamics between sealed piece 6 and the first through-hole 101 change, when the pipeline internal pressure is greater than spring 9 thrust, atmospheric pressure promotes sealed piece 6 and upwards removes, the air current gets into second chamber 3 and discharges from gas outlet 4 from first chamber 1, can pass through shell fragment 505 when the air current is discharged from gas outlet 4, make shell fragment 505 vibrate and sound, when intraductal pressure is less than spring 9's thrust, spring 9 promotes sealed piece 6 and resets.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and equivalent alternatives or modifications according to the technical solution of the present invention and the inventive concept thereof should be covered by the scope of the present invention.

Claims

1. The utility model provides a piping system automatic start-stop pressure release explosion-proof relief valve, includes first cavity (1), its characterized in that: the lower end face of the first cavity (1) is communicated with an air inlet (2), the upper end face of the first cavity (1) is provided with a first through hole (101), the upper end face of the first cavity (1) is provided with a second cavity (3) at the periphery of the first through hole (101), the upper end face of the second cavity (3) is provided with a second through hole (301), a push block (11) is arranged in the second through hole (301), the outer end face of the push block (11) is provided with threads (1101), the push block (11) is in threaded connection with the second through hole (301), the lower end face of the push block (11) is provided with a limiting plate (10), the lower end face of the limiting plate (10) is provided with a telescopic rod (8), the bottom of the telescopic rod (8) is rotatably connected with a base (7), and the lower end face of the base (7) is provided with a sealing block (6), seal block (6) with first through-hole (101) butt, the up end of base (7) with be connected with spring (9) between the lower terminal surface of limiting plate (10), the intercommunication has gas outlet (4) on the side end surface of second chamber (3), the output intercommunication of gas outlet (4) has pronunciation device, pronunciation device includes shell (5), logical groove (501) have been seted up on the side end surface of shell (5), it has baffle (502) to peg graft in logical groove (501), third through-hole (504) have been seted up on the up end of baffle (502), be close to on the up end of baffle (502) third through-hole (504) are provided with shell fragment (505), the one end of shell fragment (505) extends to the top of third through-hole (504).

2. The automatic opening and closing pressure relief and explosion prevention safety valve for the pipeline system according to claim 1, wherein: and a magnet (503) is arranged on the upper end face of the baffle (502), and the magnet (503) is attracted with the outer end face of the shell (5).

3. The automatic opening and closing pressure relief and explosion prevention safety valve for the pipeline system according to claim 1, wherein: and a second sealing gasket (201) is arranged on the lower end surface of the air inlet (2).

4. The automatic opening and closing pressure relief and explosion prevention safety valve for the pipeline system according to claim 1, wherein: the upper end face of the push block (11) is provided with a turntable (12), and the outer end face of the turntable (12) is provided with anti-skid grains (1201).

5. The automatic opening and closing pressure relief and explosion prevention safety valve for the pipeline system according to claim 1, wherein: and a first sealing gasket (102) is arranged at the abutting position of the sealing block (6) and the first through hole (101).