CN2469283Y

CN2469283Y - High pressure difference pressure regulator

Info

Publication number: CN2469283Y
Application number: CN 01214395
Authority: CN
Inventors: 张颐; 周继辉
Original assignee: Individual
Current assignee: Individual
Priority date: 2001-03-09
Filing date: 2001-03-09
Publication date: 2002-01-02
Anticipated expiration: 2011-03-09

Abstract

The utility model discloses a high pressure difference voltage regulator, mainly including a valve body, a valve seat, a valve cover, a regulation screw piston to regulate the screw rod and a shroud. The valve cover is provided with an opening spring and a membrane plate pressure block embedded with a sealing membrane, and the valve body is provided with a via hole communicated with a low pressure lower cavity and a low pressure upper cavity, and a lower pressure air tube interface communicated with the via hole. The valve body is provided with a high pressure air tube interface communicated with a high pressure hole, a throttle decompression hole and a low pressure lower cavity. The utility model can stably reduce the high pressure air with 32MPa to 0.05MPa, and has characters of high pressure difference voltage regulation performance and regulation high precision, convenient operation and stable regulation pressure.

Description

The High Pressure Difference pressure governor

The utility model relates to a kind of gas pressure controlling device, specifically a kind of High Pressure Difference pressure governor, and it is specially adapted to the production, gas for domestic use at oil gas well station and the regeneration of CNG gas station with the adjusting of atmospheric pressure and stable.

We know: in production, gas for domestic use and the CNG gas station and other defeated air supply system at oil gas well station, usually need the pressurized gas of high pressure steadily is decompressed to the pressure of setting for safe handling, the reduction valve amplitude of accommodation of generally using is less at present, generally need multi-step pressure reduction just can reach the requirement of setting pressure, and the multi-step pressure reduction equipment needed thereby is more, floor space is big, operational administrative maintenance trouble.Chinese patent CN2262147Y discloses the utility model patent that a kind of name is called " reduction valve ", it is mainly by valve body, valve gap, spool, pressure regulator and voltage stabilizer are formed, adjusting screw rod head in the pressure regulator has the flexible adjusting cap that connects, regulating cap and valve cover chamber has the locking framework that stops the rotation of adjusting cap and the pressure of regulating cap is regulated, the mechanism of lock state conversion, though it is big that this model utility has the pressure regulation amplitude, the decompression locking is reliable, easy to operate timesaving advantage, but it also only is suitable for the workplace that maximum service pressure is 1MPa, still needs multi-step pressure reduction just can finish if be used for the workplace of high pressure.

The purpose of this utility model is to propose a kind of High Pressure Difference pressure governor that can directly the pressurized gas of high pressure steadily be regulated decompression on the prior art basis.

The purpose of this utility model is achieved by the following technical solution:

A kind of High Pressure Difference pressure governor, it is mainly by the valve seat that is connected in valve body, valve gap, the adjusting plug screw and the guard shield that are fitted with adjusting screw rod constitute, Packing spring and the sealed briquette that is embedded with sealing gasket are installed in the valve seat, the spring seat of honour is installed in the valve gap, open spring, spring lower seat and the diaphragm follower that is embedded with airtight diaphragm, valve body is done through hole that is connected with low pressure cavity of resorption and low pressure epicoele and the low pressure gas interface tube that is connected with through hole, the high-pressure air pipe interface that valve body is done is by pressure hole, the expenditure and pressure hole is connected with the low pressure cavity of resorption, the relief valve connection that valve body is done, pressure gauge connection is connected with the low pressure epicoele by the hole respectively, is coated with the unlatching cylinder in valve body.Rotation adjusting screw rod adjustable settings low-pressure gas pressure backs down sealed briquette by opening cylinder, and pressurized gas enter the low pressure cavity of resorption after the decompression of expenditure and pressure hole can steadily export the gas that sets pressure.

The utility model is by the valve seat that is connected in valve body, valve gap forms low pressure cavity of resorption and low pressure epicoele, the diaphragm follower that is embedded with airtight diaphragm is installed in the valve gap, the high-pressure air pipe interface that valve body is done is connected with the low pressure cavity of resorption by the expenditure and pressure hole, valve body is coated with the unlatching cylinder, the rotation adjusting screw rod is regulated and is set low-pressure gas pressure, back down sealed briquette by opening cylinder, pressurized gas enter the low pressure cavity of resorption after the decompression of expenditure and pressure hole and the low pressure epicoele can steadily be exported the gas that sets pressure, the utlity model has simple in structure, volume is little, withstand voltage difference is big, the steady precision height of pressure regulation, the advantage of stable and reliable operation.

Fig. 1 is a structural representation of the present utility model;

Fig. 2 is A-A view of Fig. 1;

Fig. 3 is B-B view of Fig. 2.

Below in conjunction with accompanying drawing the utility model is further described:

A kind of High Pressure Difference pressure governor, it is mainly by the valve seat 2 that is connected in valve body 1, valve gap 14, the adjusting plug screw 16 and the guard shield 18 that are fitted with adjusting screw rod 17 constitute, valve seat 2 is equipped with seal ring 5 with the joint of valve body 1, can strengthen sealing effect, valve gap 14 is fixedly connected on valve body 1 by bolt 10, Packing spring 3 and the sealed briquette 6 that is embedded with sealing gasket 4 are installed in valve seat 2, the spring seat of honour 15 is installed in the valve gap 14, open spring 13, spring lower seat 12 and the diaphragm follower 20 that is embedded with airtight diaphragm 11, valve body 1 is done through hole 27 that is connected with low pressure cavity of resorption 7 and low pressure epicoele 19 and the low pressure gas interface tube 26 that is connected with through hole 27, the high-pressure air pipe interface 22 that valve body 1 is done is by pressure hole 8, expenditure and pressure hole 21 is connected with low pressure cavity of resorption 7, the relief valve connection 25 that valve body 1 is done, pressure gauge connection 28 is respectively by

hole

23,24 are connected with low pressure epicoele 19, are coated with to open cylinder 9 in valve body 1.It is work like this: high-pressure pipe is fixedly connected on high-pressure air pipe interface 22, the low pressure steam outlet pipe is fixedly connected on low pressure gas interface tube 26, safety valve is fixedly connected on relief valve connection 25, pressure gauge is fixedly connected on pressure gauge connection 28, under Packing spring 3 effects in valve seat 2, the sealing gasket 4 that embeds sealed briquette 6 is sealed expenditure and pressure hole 21, can be according to need of work, open guard shield 18, rotation adjusting screw rod 17 is set the pressure of required low-pressure gas, by opening spring 13 by spring lower seat 12, diaphragm follower 20 is depressed unlatching cylinder 9 and is backed down sealed briquette 6, at this moment the pressurized gas of high pressure by high-pressure air pipe interface 22 through pressure hole 8, enter low pressure cavity of resorption 7 behind 21 expenditure and pressures of expenditure and pressure hole, via through holes 27 enters low pressure epicoele 19 again, supply safe handling by 11 pressure stabilization functions of airtight film one-sidedness by the low pressure steam outlet pipe output low-pressure gas that is connected in low pressure gas interface tube 26, rotation adjusting screw rod 17 can be regulated the opening degree of low pressure cavity of resorption 7 easily, thus the purpose that realizes regulating low-pressure gas pressure and flow.The utlity model has easy to operate, regulate pressure steadily, can will steadily be decompressed to 0.05MPa up to the pressurized gas of 32MPa, have the function and the high advantage of degree of regulation of High Pressure Difference pressure regulation.

Claims

1. High Pressure Difference pressure governor, it is mainly by the valve seat that is connected in valve body (1) (2), valve gap (14), the adjusting plug screw (16) and the guard shield (18) that are fitted with adjusting screw rod (17) constitute, the sealed briquette (6) that it is characterized in that Packing spring (3) is installed in the valve seat (2) and be embedded with sealing gasket (4), the spring seat of honour (15) is installed in the valve gap (14), open spring (13), spring lower seat (12) and be embedded with the diaphragm follower (20) of airtight diaphragm (11), valve body (1) is done through hole (27) that is connected with low pressure cavity of resorption (7) and low pressure epicoele (19) and the low pressure gas interface tube (26) that is connected with through hole (27), the high-pressure air pipe interface (22) that valve body (1) is done is by pressure hole (8), expenditure and pressure hole (21) is connected with low pressure cavity of resorption (7), the relief valve connection (25) that valve body (1) is done, pressure gauge connection (28) is respectively by hole (23,24) be connected with low pressure epicoele (19), in valve body (1), be coated with and open cylinder (9).