CN216643201U

CN216643201U - Manual and pneumatic integrated valve

Info

Publication number: CN216643201U
Application number: CN202123198464.2U
Authority: CN
Inventors: 陈志勇; 柳文星
Original assignee: YICHANG JIANGXIA MARINE MACHINERY CO Ltd
Current assignee: YICHANG JIANGXIA MARINE MACHINERY CO Ltd
Priority date: 2021-12-20
Filing date: 2021-12-20
Publication date: 2022-05-31
Anticipated expiration: 2031-12-20

Abstract

A manual and pneumatic integrated valve comprises a pneumatic opening and closing valve, a manual opening and closing valve and a pressure release valve, wherein the interiors of the pneumatic opening and closing valve, the manual opening and closing valve and the pressure release valve are mutually communicated; the utility model combines the manual valve and the pneumatic valve into an integrated mechanism, is provided with the safety pressure relief device, integrates multiple functions of manual control, pneumatic control, automatic safety pressure relief and the like of the valve, and has stronger popularization.

Description

Manual and pneumatic integrated valve

Technical Field

The utility model belongs to the technical field of valve application, and particularly relates to a manual and pneumatic integrated valve.

Background

Stop valves are often used as control elements for controlling the on-off of cryogenic fluid in cryogenic liquid storage and transportation and cryogenic liquefaction systems. In the traditional low-temperature stop valve, an actuating mechanism of the traditional stop valve is purely pneumatic or manual, and a pneumatic device has no manual operation function, so that the continuous development of the traditional stop valve is restricted; when the pneumatic-manual mechanism is combined together, the device is actually formed by connecting a plurality of valves through air ducts, the volume of the combination is usually larger and the number of joints is more, the requirement on the sealing property among all the parts is higher, and the external leakage of the stop valve is easily caused in a low-temperature system.

Disclosure of Invention

In view of the technical problems in the background art, the manual and pneumatic integrated valve provided by the utility model combines the manual valve and the pneumatic valve into an integrated mechanism, is provided with the safety pressure relief device, integrates multiple functions of manual control, pneumatic control, automatic safety pressure relief and the like of the valve, and has strong popularization.

In order to solve the technical problems, the utility model adopts the following technical scheme to realize:

the utility model provides a manual and pneumatic integrative valve, includes pneumatic on-off valve, manual on-off valve and relief valve, and the inside of pneumatic on-off valve, manual on-off valve and relief valve communicates each other, and the lateral wall department intercommunication of pneumatic on-off valve has the intake pipe, and the lateral wall department intercommunication of manual on-off valve has the outlet duct, and the outer wall department of pneumatic on-off valve, manual on-off valve and relief valve all is equipped with the link plate, be connected with the protective bar between the link plate.

In the preferred scheme, the inside of pneumatic on-off valve is equipped with the pneumatic control cavity, and the inside of manual on-off valve is equipped with the manual control cavity, and the inside of relief valve is equipped with the pressure release cavity, the pressure release cavity sets up in the middle of the pneumatic control cavity and the pneumatic control cavity, and when pneumatic on-off valve and manual on-off valve all were in the open mode, pneumatic control cavity, pressure release cavity and manual control cavity communicate each other and link up each other with intake pipe and outlet duct.

In the preferred scheme, the pneumatic opening and closing valve comprises a control gas chamber and a pneumatic control chamber, a pneumatic opening and closing mechanism is arranged in the control gas chamber, a control gas port is formed in the control gas chamber, the pneumatic control chamber is communicated with the pressure release chamber, and a gas hole is formed in the side wall of the pneumatic control chamber.

In a preferred scheme, the pressure relief valve comprises a valve body shell, a threaded pipe, a sealing plate, a spring and an adjusting knob; screwed pipe and closing plate are installed in the valve body shell, have seted up the pressure release hole on the valve body shell, screwed pipe and pressure release cavity screw thread intercommunication, and the closing plate sets up the upper end opening part of screwed pipe, the closing plate passes through spring coupling and is connected and can slide from top to bottom in the valve body shell with adjust knob's lower extreme, adjust knob and valve body shell threaded connection.

In the preferred scheme, the lower end face of the manual opening and closing valve is in threaded connection with a threaded rod, one end of the threaded rod is connected with a manual opening and closing mechanism inside a manual control chamber, and the other end of the threaded rod is connected with a rotating disc.

This patent can reach following beneficial effect:

1. the device combines the manual valve device and the pneumatic valve device into an integrated structure, realizes the dual control functions of manual operation and pneumatic operation of the valve, and realizes the dual safety of valve control;

2. the device reduces the connection of air pipes, and improves the overall sealing property and stability of the device;

3. the device is also provided with an automatic pressure relief device, so that the connection of the safety valve can be reduced, and the function of automatic pressure relief is realized.

Drawings

The utility model is further illustrated by the following examples in conjunction with the accompanying drawings:

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

FIG. 2 is a plan view of the overall structure of the present invention;

FIG. 3 is a schematic diagram of the pneumatic opening and closing valve of the present invention;

fig. 4 is a structural sectional view of the pressure relief valve of the present invention.

In the figure: the pneumatic opening and closing valve comprises a pneumatic opening and closing valve 1, a control gas chamber 101, a control gas port 102, a gas hole 103, a manual opening and closing valve 2, a threaded rod 201, a rotating disc 202, a pressure release valve 3, a valve body shell 301, a threaded pipe 302, a sealing plate 303, a spring 304, an adjusting knob 305, a pressure release hole 306, an air inlet pipe 4, an air outlet pipe 5, a connecting plate 6, a protective rod 7, a pneumatic control chamber 8, a pressure release chamber 9 and a manual control chamber 10.

Detailed Description

As shown in fig. 1, a manual and pneumatic integrated valve comprises a pneumatic opening and closing valve 1, a manual opening and closing valve 2 and a pressure release valve 3, wherein the interiors of the pneumatic opening and closing valve 1, the manual opening and closing valve 2 and the pressure release valve 3 are communicated with each other, a gas inlet pipe 4 is communicated with the side wall of the pneumatic opening and closing valve 1, a gas outlet pipe 5 is communicated with the side wall of the manual opening and closing valve 2, gas enters the interior of the integrated valve through the gas inlet pipe 4, sequentially passes through the pneumatic opening and closing valve 1, the manual opening and closing valve 2 and the pressure release valve 3 and is finally guided out through the gas outlet pipe 5; pneumatic on-off valve 1, manual on-off valve 2 and relief valve 3's outer wall department all is equipped with even board 6, even be connected with protective rod 7 between the board 6, even board 6 and protective rod 7 can make more stable and the fastening of connecting between each valve, and protective rod 7 still has the effect of protection valve body and anticollision in addition.

Preferably, as shown in fig. 2, a pneumatic control chamber 8 is arranged inside the pneumatic opening and closing valve 1, a manual control chamber 10 is arranged inside the manual opening and closing valve 2, a pressure relief chamber 9 is arranged inside the pressure relief valve 3, and the pressure relief chamber 9 is arranged between the manual control chamber 10 and the pneumatic control chamber 8;

when the pneumatic opening and closing valve 1 and the manual opening and closing valve 2 are both in an opening state, the pneumatic control chamber 8, the pressure relief chamber 9 and the manual control chamber 10 are communicated with each other and communicated with the air inlet pipe 4 and the air outlet pipe 5, and special emphasis is needed to be placed on that the whole manual and pneumatic integrated valve device is in an opening state only when the pneumatic opening and closing valve 1 and the manual opening and closing valve 2 are opened simultaneously;

when one of the pneumatic opening and closing valve 1 and the manual opening and closing valve 2 is in a closed state, the pneumatic control chamber 8, the pressure relief chamber 9 and the manual control chamber 10 are in a blocking state, and the integrated valve is in a closed state;

the pressure release cavity 9 is in a closed state under the normal condition, when the air pressure inside the pressure release cavity 9 is too high, the pressure release cavity 9 can be automatically opened and releases the pressure inside the whole valve body, and the internal mechanism of the valve body is guaranteed not to be damaged.

The preferable scheme is as shown in fig. 1, the pneumatic on-off valve 1 comprises a control gas chamber 101 and a pneumatic control chamber 8, a pneumatic on-off mechanism is arranged in the control gas chamber 101, a control gas port 102 is arranged on the control gas chamber 101, the pneumatic control chamber 8 is communicated with a pressure relief chamber 9, and a gas hole 103 is formed in the side wall of the pneumatic control chamber 8;

when the pneumatic opening and closing valve 1 needs to be opened, high-pressure gas is introduced through the gas hole 103, so that the pneumatic opening and closing mechanism in the gas chamber 101 can be controlled to open the valve.

As shown in fig. 4, the relief valve 3 includes a valve body housing 301, a threaded pipe 302, a sealing plate 303, a spring 304, and an adjusting knob 305; the threaded pipe 302 and the sealing plate 303 are arranged in the valve body shell 301, the valve body shell 301 is provided with a pressure relief hole 306, the threaded pipe 302 is in threaded communication with the pressure relief chamber 9, the sealing plate 303 is arranged at an opening at the upper end of the threaded pipe 302, the sealing plate 303 is connected with the lower end of the adjusting knob 305 through a spring 304 and can slide up and down in the valve body shell 301, and the adjusting knob 305 is in threaded connection with the valve body shell 301;

when the air pressure in the decompression chamber 9 is too high, because the decompression chamber 9 is communicated with the threaded pipe 302, the air in the decompression chamber 9 can generate upward thrust on the sealing plate 303, the sealing plate 303 slides upward and compresses the spring 304, and when the sealing plate 303 moves above the decompression hole 306, the overpressure air can be exhausted from the decompression hole 306;

in addition, the position of the lower end of the adjusting knob 305 in the valve body shell 301 can be changed by rotating the adjusting knob 305, so as to change the initial compression amount of the spring 304, further adjust the initial pressure of the sealing plate 303, and change the critical value of the pressure relief valve 3 according to the principle.

Preferably, as shown in fig. 3, the lower end surface of the manual opening and closing valve 2 is in threaded connection with a threaded rod 201, one end of the threaded rod 201 is connected with a manual opening and closing mechanism inside the manual control chamber 10, and the other end of the threaded rod 201 is connected with a rotating disc 202;

when the manual opening and closing valve 2 needs to be opened and closed, the threaded rod 201 can drive the manual opening and closing mechanism inside the manual control chamber 10 to complete dependent opening and closing actions only by manually rotating the rotating disc 202.

The above-described embodiments are merely preferred embodiments of the present invention, and should not be construed as limiting the present invention, and the scope of the present invention is defined by the claims, and equivalents including technical features described in the claims. I.e., equivalent alterations and modifications within the scope hereof, are also intended to be within the scope of the utility model.

Claims

1. The utility model provides a manual and pneumatic integrative valve, includes pneumatic on-off valve (1), manual on-off valve (2) and relief valve (3), its characterized in that: the inside intercommunication each other of pneumatic on-off valve (1), manual on-off valve (2) and relief valve (3), the lateral wall department intercommunication of pneumatic on-off valve (1) has intake pipe (4), and the lateral wall department intercommunication of manual on-off valve (2) has outlet duct (5), and the outer wall department of pneumatic on-off valve (1), manual on-off valve (2) and relief valve (3) all is equipped with even board (6), be connected with protective bar (7) between even board (6).

2. A manual and pneumatic integrated valve according to claim 1, wherein: the inside of pneumatic on-off valve (1) is equipped with pneumatic control cavity (8), and the inside of manual on-off valve (2) is equipped with manual control cavity (10), and the inside of relief valve (3) is equipped with pressure release cavity (9), pressure release cavity (9) set up in the middle of manual control cavity (10) and pneumatic control cavity (8), and when pneumatic on-off valve (1) and manual on-off valve (2) all were in the on-state, pneumatic control cavity (8), pressure release cavity (9) and manual control cavity (10) communicate each other and link up each other with intake pipe (4) and outlet duct (5).

3. Manual and pneumatic integrated valve according to claim 2, characterized in that: pneumatic on-off valve (1) is including controlling gaseous room (101) and pneumatic control cavity (8), be equipped with pneumatic opening and closing mechanism in controlling gaseous room (101), be equipped with control gas port (102) on controlling gaseous room (101), pneumatic control cavity (8) are linked together and are seted up gas pocket (103) in lateral wall department with pressure release cavity (9).

4. Manual and pneumatic integrated valve according to claim 2, characterized in that: the pressure relief valve (3) comprises a valve body shell (301), a threaded pipe (302), a sealing plate (303), a spring (304) and an adjusting knob (305); threaded pipe (302) and sealing plate (303) are installed in valve body shell (301), have seted up pressure release hole (306) on valve body shell (301), threaded pipe (302) and pressure release cavity (9) screw thread intercommunication, the upper end opening part of threaded pipe (302) that sealing plate (303) set up, sealing plate (303) are connected through spring (304) and are connected and can slide from top to bottom in valve body shell (301) with the lower extreme of adjust knob (305), adjust knob (305) and valve body shell (301) threaded connection.

5. Manual and pneumatic integrated valve according to claim 2, characterized in that: the lower end face of the manual opening and closing valve (2) is in threaded connection with a threaded rod (201), one end of the threaded rod (201) is connected with a manual opening and closing mechanism inside a manual control chamber (10), and the other end of the threaded rod (201) is connected with a rotating disc (202).