CN202327279U - Self-operated pressure regulating valve - Google Patents

Self-operated pressure regulating valve Download PDF

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Publication number
CN202327279U
CN202327279U CN2011204799320U CN201120479932U CN202327279U CN 202327279 U CN202327279 U CN 202327279U CN 2011204799320 U CN2011204799320 U CN 2011204799320U CN 201120479932 U CN201120479932 U CN 201120479932U CN 202327279 U CN202327279 U CN 202327279U
Authority
CN
China
Prior art keywords
valve
pressure
self
pressure measuring
pilot
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
CN2011204799320U
Other languages
Chinese (zh)
Inventor
董国良
高崧
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
QINGDAO HENGBANG ELECTROMECHANICAL TECHNOLOGY Co Ltd
Original Assignee
QINGDAO HENGBANG ELECTROMECHANICAL TECHNOLOGY Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by QINGDAO HENGBANG ELECTROMECHANICAL TECHNOLOGY Co Ltd filed Critical QINGDAO HENGBANG ELECTROMECHANICAL TECHNOLOGY Co Ltd
Priority to CN2011204799320U priority Critical patent/CN202327279U/en
Application granted granted Critical
Publication of CN202327279U publication Critical patent/CN202327279U/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Abstract

The utility model discloses a self-operated pressure regulating valve, and relates to the technical field of regulating valve devices. The self-operated pressure regulating valve comprises a valve front pressure measuring tube (1), a control valve (2), a pilot valve (3), a regulating valve (4), a throttling valve (5), a valve rear pressure measuring tube (6) and a valve rear pressure measuring point (7), wherein one end of the valve front pressure measuring tube (1) is connected with the control valve (2), and the other end of the valve front pressure measuring tube (1) is connected with the front end of the pilot valve (3); the regulating valve (4) is arranged above the pilot valve (3); the rear end of the pilot valve (3) is connected with one end of the valve rear pressure measuring tube (6) through the throttling valve (5); and the other end of the valve rear pressure measuring tube (6) is connected with the valve rear pressure measuring point (7). The self-operated pressure regulating valve has the characteristics of simple structure, convenience for operation, no requirement on external energy sources, and capability of realizing regulation through one pressure variation, is applied to places where accidents easily happen due to no power or power failure, and is widely applied to the industrial production departments of natural gas exploitation and transmission, city gas, metallurgy, petroleum, chemicals and the like.

Description

Self-contained pressure regulator
Technical field:
The utility model relates to the control valve device technical field, is specifically related to self-contained pressure regulator.
Background technique:
As everyone knows, the valve internal pressure chamber of traditional self-contained pressure regulator adopts patching.And adopt its shortcoming of patching is that diaphragm is prone to aging, narrow application range; Bear pressure 1.0Mpa because work as diaphragm, when pressure medium surpassed 1.0Mpa, diaphragm was prone to break.
The model utility content:
The purpose of the utility model provides self-contained pressure regulator, and it utilizes and is transferred the variation in pressure of object own, directly drives regulating valve and reaches the purpose of regulating pressure, can be used for non-aggressive, and temperature is the pressure stability device of the gas medium of-20~+ 60 degree.
In order to solve the existing problem of background technique; The utility model is to adopt following technological scheme: it comprises behind pressure pipe 1 before the valve, control valve 2, pilot valve 3, modulating valve 4, throttle valve 5, the valve pressure point 7 behind the pressure pipe 6 and valve; An end of pressure pipe 1 is connected with control valve 2 before the valve; The other end of pressure pipe 1 is connected with the front end of pilot valve 3 before the valve; The top of pilot valve 3 is provided with modulating valve 4, and the rear end of pilot valve 3 is connected through an end of pressure pipe 6 behind throttle valve 5 and the valve, behind the valve behind the other end of pressure pipe 6 and the valve pressure point 7 be connected.
Be provided with the valve internal pressure chamber in the utility model, and valve internal pressure chamber employing piston form, eliminated shortcomings such as traditional diaphragm is aging, the Applicable scope of having widened valve, and pressure medium can be suitable for below 6.3Mpa.
The utility model utilizes is transferred the variation in pressure of object own, being transferred the pressure medium minor variations to amplify, feeds back to valve two pressure chambers through valve intelligence pilot valve, regulates valve port opening, reaches the purpose of pressure medium behind the modulating valve; Have the advantages that the pressure degree of regulation is high, need not the external energy, long service life.
The utlity model has simple in structure, easy to operate; Need not the external energy; The characteristics of regulating through the variation in pressure of self; Be applicable to the place of not having electricity or being prone to cause the accident, be widely used in natural gas at present and adopted industrial production sectors such as defeated, town gas and metallurgy, oil, chemical industry because of having a power failure.
Description of drawings:
Fig. 1 is the structural representation of the utility model.
Embodiment:
With reference to Fig. 1; This embodiment adopts following technological scheme: it comprises behind pressure pipe 1 before the valve, control valve 2, pilot valve 3, modulating valve 4, throttle valve 5, the valve pressure point 7 behind the pressure pipe 6 and valve; An end of pressure pipe 1 is connected with control valve 2 before the valve; The other end of pressure pipe 1 is connected with the front end of pilot valve 3 before the valve; The top of pilot valve 3 is provided with modulating valve 4, and the rear end of pilot valve 3 is connected through an end of pressure pipe 6 behind throttle valve 5 and the valve, behind the valve behind the other end of pressure pipe 6 and the valve pressure point 7 be connected.
Be provided with the valve internal pressure chamber in this embodiment, and valve internal pressure chamber employing piston form, eliminated shortcomings such as traditional diaphragm is aging, the Applicable scope of having widened valve, and pressure medium can be suitable for below 6.3Mpa.
The working principle of this embodiment: the working medium pressure regulator valve of flowing through in a direction indicated by the arrow, control flow velocity by valve element position and the spool that forms thus and the free basement area of valve base chamber.By means of pressure pipe 1 before the valve with upstream pressure P 1Be transferred to pilot valve 3, depend on the adjustment of setpoint adjustments handwheel, produce a corresponding operation pressure P in the pilot valve 3 S, operation pressure P SAct on film chamber under the 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 1The effect lower compression makes pilot valve 3 spools move to closing direction, and operation pressure descends, and like this, the film room pressure reduces under the control valve, P in the upper film chamber 1Increase, cause the controlling mechanism spool to move, thereby reduce P to closing direction 1,, work as P until reverting to former setting value 1During decline, action direction and above-mentioned opposite.
This embodiment is utilized and to be transferred the variation in pressure of object own, being transferred the pressure medium minor variations to amplify, feeds back to valve two pressure chambers through valve intelligence pilot valve, regulates valve port opening, reaches the purpose of pressure medium behind the modulating valve; Have the advantages that the pressure degree of regulation is high, need not the external energy, long service life.
It is simple in structure, easy to operate that this embodiment has; Need not the external energy; The characteristics of regulating through the variation in pressure of self; Be applicable to the place of not having electricity or being prone to cause the accident, be widely used in natural gas at present and adopted industrial production sectors such as defeated, town gas and metallurgy, oil, chemical industry because of having a power failure.

Claims (2)

1. self-contained pressure regulator; It is characterized in that it comprises behind pressure pipe (1) before the valve, control valve (2), pilot valve (3), modulating valve (4), throttle valve (5), the valve pressure point (7) behind the pressure pipe (6) and valve; An end of pressure pipe (1) is connected with control valve (2) before the valve; The other end of pressure pipe (1) is connected with the front end of pilot valve (3) before the valve; The top of pilot valve (3) is provided with modulating valve (4), and the rear end of pilot valve (3) is connected through an end of pressure pipe (6) behind throttle valve (5) and the valve, behind the valve behind the other end of pressure pipe (6) and the valve pressure point (7) be connected.
2. self-contained pressure regulator according to claim 1 is characterized in that being provided with the valve internal pressure chamber in the described self-contained pressure regulator, and the valve internal pressure chamber adopts the piston form.
CN2011204799320U 2011-11-28 2011-11-28 Self-operated pressure regulating valve Expired - Fee Related CN202327279U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2011204799320U CN202327279U (en) 2011-11-28 2011-11-28 Self-operated pressure regulating valve

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2011204799320U CN202327279U (en) 2011-11-28 2011-11-28 Self-operated pressure regulating valve

Publications (1)

Publication Number Publication Date
CN202327279U true CN202327279U (en) 2012-07-11

Family

ID=46439258

Family Applications (1)

Application Number Title Priority Date Filing Date
CN2011204799320U Expired - Fee Related CN202327279U (en) 2011-11-28 2011-11-28 Self-operated pressure regulating valve

Country Status (1)

Country Link
CN (1) CN202327279U (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103574116A (en) * 2012-08-05 2014-02-12 上海三洲自控仪表有限公司 Novel high-performance self-operated control valve
CN103712064A (en) * 2014-01-15 2014-04-09 青岛恒邦机电科技有限公司 Self-operated pressure regulator
CN104265964A (en) * 2014-09-12 2015-01-07 诸文伟 Natural gas meandering flow pressure regulator

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103574116A (en) * 2012-08-05 2014-02-12 上海三洲自控仪表有限公司 Novel high-performance self-operated control valve
CN103712064A (en) * 2014-01-15 2014-04-09 青岛恒邦机电科技有限公司 Self-operated pressure regulator
CN104265964A (en) * 2014-09-12 2015-01-07 诸文伟 Natural gas meandering flow pressure regulator

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Legal Events

Date Code Title Description
C14 Grant of patent or utility model
GR01 Patent grant
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20120711

Termination date: 20151128