CN103712064A - Self-operated pressure regulator - Google Patents
Self-operated pressure regulator Download PDFInfo
- Publication number
- CN103712064A CN103712064A CN201410017527.5A CN201410017527A CN103712064A CN 103712064 A CN103712064 A CN 103712064A CN 201410017527 A CN201410017527 A CN 201410017527A CN 103712064 A CN103712064 A CN 103712064A
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- China
- Prior art keywords
- valve
- pressure
- self
- pressure tapping
- pressure pipe
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Abstract
The invention discloses a self-operated pressure regulator which can eliminate membrane aging and widen the application range of a valve. The self-operated pressure regulator is characterized by comprising an upstream pressure tapping pipe (1), a control valve (2), a director (3), a regulating valve (4), a throttling valve (5), a downstream pressure tapping pipe (6) and a downstream pressure tapping point (7), one end of the upstream pressure tapping pipe (1) is connected with the control valve (2), the other end of the upstream pressure tapping pipe (1) is connected with the front end of the director (3), the regulating valve (4) is connected with the upper end of the director (3), the rear end of the director (3) is connected with one end of the downstream pressure tapping pipe (6) through the throttling valve (5), and the other end of the downstream pressure tapping pipe (6) is connected with the downstream pressure tapping point (7).
Description
Technical field
The present invention relates to control valve device field, be specifically related to a kind ofly can occasionally eliminate that diaphragm is aging, the self-contained pressure regulator of the Applicable scope of widening valve.
Background technique
As everyone knows, the valve internal pressure chamber of traditional self-contained pressure regulator adopts patching.And adopt its shortcoming of patching, it is easily aging, narrow application range of diaphragm; Because when diaphragm bears pressure 1.0Mpa, when pressure medium surpasses 1.0Mpa, diaphragm easily breaks.
Summary of the invention
The object of this invention is to provide and a kind ofly eliminate that diaphragm is aging, the self-contained pressure regulator of the Applicable scope of widening valve.
In order to solve the existing problem of background technique, the present invention is by the following technical solutions: self-contained pressure regulator, it is characterized in that by pressure pipe before valve (1), control valve (2), pilot valve (3), modulating valve (4), throttle valve (5), after pressure pipe after valve (6) and valve, pressure point (7) forms, wherein, before valve, one end of pressure pipe (1) is connected with control valve (2), before valve, the other end of pressure pipe (1) is connected with the front end of pilot valve (3), modulating valve (4) is connected with the upper end of pilot valve (3), the rear end of pilot valve (3) is connected with one end of pressure pipe after valve (6) by throttle valve (5), the other end of pressure pipe after valve (6) is connected with pressure point (7) after valve.
Described control valve is provided with valve internal pressure chamber in (2), and valve internal pressure chamber adopts piston form.
Effect of the present invention is: self-contained pressure regulator, is comprised of pressure point after pressure pipe and valve after pressure pipe, control valve, pilot valve, modulating valve, throttle valve, valve before valve.
Control valve in the present invention (2) is provided with valve internal pressure chamber, and valve internal pressure chamber employing piston form, has eliminated the shortcomings such as traditional diaphragm is aging, the Applicable scope of having widened valve, and pressure medium can be suitable for below 6.3 Mpa.
The present invention utilizes and is adjusted the pressure of object own to change, and by valve intelligence pilot valve, being adjusted pressure medium minor variations to amplify, feeds back to valve two pressure chambers, regulates valve port opening, reaches the object of pressure medium after modulating valve; Have pressure degree of regulation high, without the feature of the external energy, long service life.
It is simple in structure, easy to operate that the present invention has, need not the external energy, pressure by self changes the feature regulate, is applicable to without electricity or the place that easily causes the accident because having a power failure, has now been widely used in natural gas and has adopted the industrial production sectors such as defeated, town gas and metallurgy, oil, chemical industry.
Below in conjunction with drawings and Examples, the present invention is described further.
Accompanying drawing explanation
Accompanying drawing is the structural representation of invention.
Embodiment
In accompanying drawing, self-contained pressure regulator, by pressure point 7 after pressure pipe 6 and valve after pressure pipe before valve 1, control valve 2, pilot valve 3, modulating valve 4, throttle valve 5, valve, formed, wherein, before valve, one end of pressure pipe 1 is connected with control valve 2, and before valve, the other end of pressure pipe 1 is connected with the front end of pilot valve 3, and modulating valve 4 is connected with the upper end of pilot valve 3, the rear end of pilot valve 3 is connected with one end of pressure pipe after valve 6 by throttle valve 5, and after valve, the other end of pressure pipe 6 is connected with pressure point after valve 7.
Control valve is provided with valve internal pressure chamber in (2), and valve internal pressure chamber adopts piston form.
Working principle of the present invention: the working medium modulating valve of flowing through in a direction indicated by the arrow, by valve element position and the spool forming thus and the free basement area control of valve base chamber flow velocity.By means of pressure pipe before valve 1 by upstream pressure P
1be transferred to pilot valve 3, depend on the adjustment of setpoint adjustments handwheel, corresponding operation pressure P of the interior generation of pilot valve 3
s, operation pressure P
sact on film chamber under control valve, setting pressure P
1act on upper film chamber, upstream pressure communicates with pilot valve 3 feedback signal mouths, as setting pressure P
1during rising, pilot valve 3 inner springs are at P
1effect lower compression makes pilot valve 3 spools move to closing direction, and operation pressure declines, and like this, under control valve, film room pressure reduces, P in upper film chamber
1increase, cause controlling mechanism spool to move to closing direction, thereby reduce P
1, until revert to former setting value, work as P
1during decline, action direction is contrary to the above.
The present invention utilizes and is adjusted the pressure of object own to change, and by valve intelligence pilot valve, being adjusted pressure medium minor variations to amplify, feeds back to valve two pressure chambers, regulates valve port opening, reaches the object of pressure medium after modulating valve; Have pressure degree of regulation high, without the feature of the external energy, long service life.
It is simple in structure, easy to operate that the present invention has, need not the external energy, pressure by self changes the feature regulate, is applicable to without electricity or the place that easily causes the accident because having a power failure, has now been widely used in natural gas and has adopted the industrial production sectors such as defeated, town gas and metallurgy, oil, chemical industry.
Claims (2)
1. self-contained pressure regulator, it is characterized in that by pressure pipe before valve (1), control valve (2), pilot valve (3), modulating valve (4), throttle valve (5), after pressure pipe after valve (6) and valve, pressure point (7) forms, wherein, before valve, one end of pressure pipe (1) is connected with control valve (2), before valve, the other end of pressure pipe (1) is connected with the front end of pilot valve (3), modulating valve (4) is connected with the upper end of pilot valve (3), the rear end of pilot valve (3) is connected with one end of pressure pipe after valve (6) by throttle valve (5), the other end of pressure pipe after valve (6) is connected with pressure point (7) after valve.
2. self-contained pressure regulator according to claim 1, it is characterized in that being provided with valve internal pressure chamber in described control valve (2), and valve internal pressure chamber adopts piston form.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410017527.5A CN103712064A (en) | 2014-01-15 | 2014-01-15 | Self-operated pressure regulator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410017527.5A CN103712064A (en) | 2014-01-15 | 2014-01-15 | Self-operated pressure regulator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103712064A true CN103712064A (en) | 2014-04-09 |
Family
ID=50405266
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410017527.5A Pending CN103712064A (en) | 2014-01-15 | 2014-01-15 | Self-operated pressure regulator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103712064A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106838403A (en) * | 2017-03-07 | 2017-06-13 | 德阀机械（上海）有限公司 | A kind of self-operated type piston the needle valve |
| CN112943990A (en) * | 2021-01-18 | 2021-06-11 | 先尼科化工（上海）有限公司 | Remote setting self-operated pressure regulating valve |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN200999969Y (en) * | 2007-02-08 | 2008-01-02 | 张永亮 | Pipeline pressure regulating apparatus |
| CN201187611Y (en) * | 2008-05-08 | 2009-01-28 | 四川华林自控科技有限公司 | Self-operated type pressure regulating valve |
| JP2010265963A (en) * | 2009-05-13 | 2010-11-25 | Yazaki Corp | Check valve incorporated with liquid sealing prevention mechanism |
| CN202327279U (en) * | 2011-11-28 | 2012-07-11 | 青岛恒邦机电科技有限公司 | Self-operated pressure regulating valve |
-
2014
- 2014-01-15 CN CN201410017527.5A patent/CN103712064A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN200999969Y (en) * | 2007-02-08 | 2008-01-02 | 张永亮 | Pipeline pressure regulating apparatus |
| CN201187611Y (en) * | 2008-05-08 | 2009-01-28 | 四川华林自控科技有限公司 | Self-operated type pressure regulating valve |
| JP2010265963A (en) * | 2009-05-13 | 2010-11-25 | Yazaki Corp | Check valve incorporated with liquid sealing prevention mechanism |
| CN202327279U (en) * | 2011-11-28 | 2012-07-11 | 青岛恒邦机电科技有限公司 | Self-operated pressure regulating valve |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106838403A (en) * | 2017-03-07 | 2017-06-13 | 德阀机械（上海）有限公司 | A kind of self-operated type piston the needle valve |
| CN106838403B (en) * | 2017-03-07 | 2019-05-07 | 德阀机械（上海）有限公司 | A kind of self-operated type piston the needle valve |
| CN112943990A (en) * | 2021-01-18 | 2021-06-11 | 先尼科化工（上海）有限公司 | Remote setting self-operated pressure regulating valve |
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|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C12 | Rejection of a patent application after its publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20140409 |