CN214662306U

CN214662306U - Explosion-proof regulating valve for flowmeter

Info

Publication number: CN214662306U
Application number: CN202120032247.7U
Authority: CN
Inventors: 许啸
Original assignee: Suzhou Industrial Park Shiyun Precision Industry Co ltd
Current assignee: Suzhou Industrial Park Shiyun Precision Industry Co ltd
Priority date: 2021-01-07
Filing date: 2021-01-07
Publication date: 2021-11-09
Anticipated expiration: 2031-01-07

Abstract

The utility model discloses an explosion-proof governing valve for flowmeter, including the change valve body, the bottom of change valve body is provided with interior pressure change-over valve, and presses change-over valve and change valve body fixed connection in, the top of pressing interior pressure change-over valve is provided with the flashboard center pin, and the flashboard center pin sets up to the integral type structure with interior pressure change-over valve look, one side of flashboard center pin is provided with the ordinary pressure delivery outlet. This explosion-proof governing valve for flowmeter, when the adjusting valve body closed, the pressure of input port department will increase, the automatic control valve plate of negative pressure import department will open and make during gaseous entering pressure release bottle this moment, move downwards through gaseous promotion rubber ring piston, and after the pressure of input port department is normal, pressure spring will be ejecting again the automatic control valve plate to closed valve, the resistance through the rubber ring piston reduces the velocity of flow of gas like this, unnecessary gas can be stored in the inside of pressure release bottle simultaneously.

Description

Explosion-proof regulating valve for flowmeter

Technical Field

The utility model relates to a governing valve technical field, in particular to explosion-proof governing valve for flowmeter.

Background

The regulating valve is also called a control valve, and in the field of industrial automation process control, the final control element for changing the process parameters of medium flow, pressure, temperature, liquid level and the like by power operation through receiving the control signal output by a regulating control unit. Generally consisting of an actuator and a valve. If according to the stroke characteristic, the regulating valve can be divided into a straight stroke and an angular stroke; the pneumatic regulating valve, the electric regulating valve and the hydraulic regulating valve can be divided into three types according to the power used by the matched executing mechanism; the method is divided into three types, namely a linear characteristic, an equal percentage characteristic and a parabolic characteristic according to functions and characteristics of the method. The regulating valve is suitable for air, water, steam, various corrosive media, slurry, oil and other media.

The pressure of a medium flowing through a valve in the opening and closing process of the conventional regulating valve is higher than that of other areas of a pipeline, so that the friction between the medium and the pipe wall at the position is increased, the pipe orifice at the position of the valve is aged, and finally the condition of bursting occurs.

SUMMERY OF THE UTILITY MODEL

The utility model discloses a main aim at provides an explosion-proof governing valve for flowmeter can effectively improve the pressure that explains current governing valve when opening and close in-process medium flow through valve department in the background art and will be higher than other regions of pipeline, and the friction between the pipe wall of medium and this department will increase like this to lead to the valve department mouth of pipe ageing, the problem that bursts finally appears.

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

the utility model provides an explosion-proof governing valve for flowmeter, includes the modulating valve body, the bottom of modulating valve body is provided with interior pressure change-over valve, and presses change-over valve and modulating valve body fixed connection in, the top of pressing the change-over valve in interior is provided with the flashboard center pin, and the flashboard center pin sets up to the integral type structure with interior pressure change-over valve look, one side of flashboard center pin is provided with the ordinary pressure delivery outlet, and the opposite side of flashboard center pin is provided with the negative pressure input port, the inside of ordinary pressure delivery outlet and negative pressure input port is provided with the automatic control valve plate, and the automatic control valve plate is connected with ordinary pressure delivery outlet and negative pressure input port laminating, the below of automatic control valve plate is provided with pressure spring, and the automatic control valve plate passes through pressure spring and is connected with interior pressure change-over valve, the bottom of pressing the change-over valve in interior is provided with bottle sleeve pipe, and the below of pressing the change-over valve is provided with the pressure relief bottle.

Preferably, the top of the pressure relief bottle is provided with a fixed bottle seal, the fixed bottle seal is connected with the pressure relief bottle in a combined manner, a threaded bottle opening is arranged above the fixed bottle seal, and the threaded bottle opening is rotatably connected with the bottle body sleeve through an internal thread.

Preferably, be provided with the rubber ring piston in the pressure release bottle, and rubber ring piston and pressure release bottle telescopic connection, the bottom of pressure release bottle is provided with the pressure discharge valve mouth, and pressure discharge valve mouth and pressure release bottle combination are connected.

Preferably, both sides of the flashboard center shaft are provided with limiting rubber strips, and the limiting rubber strips are connected with the flashboard center shaft through screws.

Preferably, one end of the regulating valve body is provided with an output port, the other end of the regulating valve body is provided with an input port, and the outer surfaces of the output port and the input port are provided with flange plates.

Preferably, an electromagnetic controller is arranged above the adjusting valve body and connected with the adjusting valve body through a bolt, and a wiring end is arranged at the top of the electromagnetic controller.

Compared with the prior art, the utility model discloses following beneficial effect has: this explosion-proof governing valve for flowmeter, when the adjusting valve body closed, the pressure of input port department will increase, the automatic control valve plate of negative pressure import department will open and make during gaseous entering pressure release bottle this moment, move downwards through gaseous promotion rubber ring piston, and after the pressure of input port department is normal, pressure spring will be ejecting again the automatic control valve plate to closed valve, the resistance through the rubber ring piston reduces the velocity of flow of gas like this, unnecessary gas can be stored in the inside of pressure release bottle simultaneously.

Drawings

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

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

FIG. 3 is a schematic structural view of the internal pressure switching valve of the present invention;

fig. 4 is a schematic view of the cross-sectional structure of the internal pressure switching valve of the present invention.

In the figure: 1. a regulating valve body; 2. an output port; 3. an input port; 4. an electromagnetic controller; 5. a terminal; 6. an internal pressure switching valve; 7. a pressure relief bottle; 8. a pressure relief valve nozzle; 9. fixing the bottle seal; 10. a threaded bottle mouth; 11. a rubber ring piston; 12. a gate plate central shaft; 13. a limiting rubber strip; 14. an atmospheric pressure output port; 15. a negative pressure input port; 16. a self-control valve plate; 17. a bottle body sleeve; 18. a pressure spring.

Detailed Description

For making the technical means, creation characteristics, achievement purpose and efficiency of the utility model easily understand and understand, it is right below the technical scheme of the utility model to carry out further detailed explanation.

As shown in fig. 1 to 4, an explosion-proof regulating valve for a flow meter in this embodiment includes a regulating valve body 1, an internal pressure switching valve 6 is disposed at the bottom of the regulating valve body 1, the internal pressure switching valve 6 is fixedly connected to the regulating valve body 1, a central shutter plate shaft 12 is disposed at the top of the internal pressure switching valve 6, the central shutter plate shaft 12 and the internal pressure switching valve 6 are integrated, a normal pressure output port 14 is disposed at one side of the central shutter plate shaft 12, a negative pressure input port 15 is disposed at the other side of the central shutter plate shaft 12, a self-control valve plate 16 is disposed inside the normal pressure output port 14 and the negative pressure input port 15, a pressure spring 18 is disposed below the self-control valve plate 16, the self-control valve plate 16 is connected to the internal pressure switching valve 6 through the pressure spring 18, a bottle sleeve 17 is disposed at the bottom of the internal pressure 6, and the pressure relief bottle 7 is arranged below the internal pressure change-over valve 6, when the regulating valve body 1 is closed, the pressure at the input port 3 is increased, at the moment, the self-control valve plate 16 at the negative pressure input port 15 is opened to enable the gas to enter the pressure relief bottle 7, the rubber ring piston 11 is pushed downwards by the gas to move, and when the pressure at the input port 3 is normal, the pressure spring 18 pushes the self-control valve plate 16 out again to close the valve.

In this embodiment, the top of the pressure relief bottle 7 is provided with a fixed bottle seal 9, the fixed bottle seal 9 is connected with the pressure relief bottle 7 in a combined manner, a threaded bottle opening 10 is arranged above the fixed bottle seal 9, and the threaded bottle opening 10 is connected with the bottle sleeve 17 in a rotating manner through an internal thread, so that the assembly and disassembly are facilitated.

In this embodiment, be provided with rubber ring piston 11 in the pressure release bottle 7, and rubber ring piston 11 and pressure release bottle 7 telescopic connection, the bottom of pressure release bottle 7 is provided with pressure discharge valve mouth 8, and pressure discharge valve mouth 8 and pressure release bottle 7 built-up connection, and the resistance through rubber ring piston 11 reduces gaseous velocity of flow, and unnecessary gas can be stored in the inside of pressure release bottle 7 simultaneously.

In this embodiment, the both sides of flashboard center pin 12 all are provided with spacing adhesive tape 13, and spacing adhesive tape 13 passes through the screw connection with flashboard center pin 12, and spacing adhesive tape 13 both can promote the leakproofness of the inside flashboard of regulating valve body 1 and interior pressure change-over valve 6, can also carry on spacingly to the automatic control valve plate 16 of flashboard center pin 12 both sides simultaneously, makes the automatic control valve plate 16 height keep equal with the level of flashboard center pin 12.

In this embodiment, one end of the regulating valve body 1 is provided with the output port 2, and the other end of the regulating valve body 1 is provided with the input port 3, and the outer surfaces of the output port 2 and the input port 3 are provided with the flange plate, so that the sealing performance of the joint is ensured.

In the embodiment, an electromagnetic controller 4 is arranged above the regulating valve body 1, the electromagnetic controller 4 is connected with the regulating valve body 1 through bolts, and a wiring terminal 5 is arranged at the top of the electromagnetic controller 4, so that remote control operation can be realized.

It should be noted that, the utility model relates to an explosion-proof regulating valve for flowmeter, when using, when the regulating valve body 1 is closed, the pressure of input port 3 will increase, at this moment, the automatic control valve plate 16 of negative pressure input port 15 department will open and make gas enter into pressure release bottle 7, move downwards through gas promotion rubber ring piston 11, and when the pressure of input port 3 department is normal, pressure spring 18 will push out automatic control valve plate 16 again, thereby close the valve, reduce the velocity of flow of gas through the resistance of rubber ring piston 11, unnecessary gas can be stored in the inside of pressure release bottle 7 simultaneously, and when opening the internal flashboard of regulating valve body 1 or after the gas saturation in pressure release bottle 7, can open the pressure release valve mouth 8 of pressure release bottle 7 bottom, make the bottle inside and external environment form a pressure differential, the valve plate inside ordinary pressure delivery outlet 14 and negative pressure input port 15 is in the open state in this process, causing the gas to merge into the main conduit.

The basic principles and the main features of the invention and the advantages of the invention have been shown and described above. It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the foregoing embodiments and descriptions are provided only to illustrate the principles of the present invention without departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. The utility model provides an explosion-proof governing valve for flowmeter which characterized in that: including the adjusting valve body (1), the bottom of adjusting valve body (1) is provided with interior pressure change-over valve (6), and interior pressure change-over valve (6) and adjusting valve body (1) fixed connection, the top of interior pressure change-over valve (6) is provided with flashboard center pin (12), and flashboard center pin (12) and interior pressure change-over valve (6) look and set up to integral type structure, one side of flashboard center pin (12) is provided with ordinary pressure delivery outlet (14), and the opposite side of flashboard center pin (12) is provided with negative pressure input port (15), the inside of ordinary pressure delivery outlet (14) and negative pressure input port (15) is provided with automatic control valve plate (16), and automatic control valve plate (16) and ordinary pressure delivery outlet (14) and negative pressure input port (15) laminating are connected, the below of automatic control valve plate (16) is provided with pressure spring (18), and automatic control valve plate (16) are connected with interior pressure change-over valve (6) through pressure spring (18), the bottom of the internal pressure conversion valve (6) is provided with a bottle sleeve (17), and a pressure relief bottle (7) is arranged below the internal pressure conversion valve (6).

2. The explosion-proof regulating valve for the flowmeter of claim 1, wherein: the pressure relief bottle is characterized in that a fixed bottle seal (9) is arranged at the top of the pressure relief bottle (7), the fixed bottle seal (9) is connected with the pressure relief bottle (7) in a combined mode, a threaded bottle opening (10) is arranged above the fixed bottle seal (9), and the threaded bottle opening (10) is connected with a bottle body sleeve (17) in a rotating mode through internal threads.

3. The explosion-proof regulating valve for the flowmeter of claim 1, wherein: be provided with rubber ring piston (11) in pressure release bottle (7), and rubber ring piston (11) and pressure release bottle (7) telescopic connection, the bottom of pressure release bottle (7) is provided with pressure discharge valve mouth (8), and pressure discharge valve mouth (8) and pressure release bottle (7) built-up connection.

4. The explosion-proof regulating valve for the flowmeter of claim 1, wherein: and the two sides of the gate plate central shaft (12) are provided with limiting rubber strips (13), and the limiting rubber strips (13) are connected with the gate plate central shaft (12) through screws.

5. The explosion-proof regulating valve for the flowmeter of claim 1, wherein: one end of the regulating valve body (1) is provided with an output port (2), the other end of the regulating valve body (1) is provided with an input port (3), and flange plates are arranged on the outer surfaces of the output port (2) and the input port (3).

6. The explosion-proof regulating valve for the flowmeter of claim 1, wherein: an electromagnetic controller (4) is arranged above the adjusting valve body (1), the electromagnetic controller (4) is connected with the adjusting valve body (1) through bolts, and a wiring end (5) is arranged at the top of the electromagnetic controller (4).