CN104676066A - Power-off driving device for gas cut-off valve - Google Patents
Power-off driving device for gas cut-off valve Download PDFInfo
- Publication number
- CN104676066A CN104676066A CN201310625081.XA CN201310625081A CN104676066A CN 104676066 A CN104676066 A CN 104676066A CN 201310625081 A CN201310625081 A CN 201310625081A CN 104676066 A CN104676066 A CN 104676066A
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- CN
- China
- Prior art keywords
- valve
- circuit
- gas
- power
- cut
- 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.)
- Pending
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/02—Actuating devices; Operating means; Releasing devices electric; magnetic
- F16K31/06—Actuating devices; Operating means; Releasing devices electric; magnetic using a magnet, e.g. diaphragm valves, cutting off by means of a liquid
- F16K31/0675—Electromagnet aspects, e.g. electric supply therefor
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Mechanical Engineering (AREA)
- Magnetically Actuated Valves (AREA)
Abstract
The invention discloses a power-off driving device for a gas cut-off valve, belongs to accessories of gas valves, and in particular discloses a valve accessory for cutting off gas in emergency by electrically cutting off and manually recovering manner. The power-off driving device for the gas cut-off valve comprises a driving circuit and an electromagnetic coil power supply circuit; the driving circuit is that a capacitive and resistance voltage drop device is connected with a bridge type rectifier circuit and then sequentially connected with a first-stage triode amplifying circuit and a second-stage triode amplifying circuit; a relay coil is connected to a triode collecting electrode of the second-stage amplifying circuit; the electromagnetic coil power supply circuit is that one end connected with the output end of the AC bridge type rectifier circuit is grounded, and while the other end is grounded after passing through two electrolytic capacitors, a gas cut-off valve electromagnetic coil and a relay contact which are sequentially connected in parallel through diodes. With the adoption of the device, the requirement that the cut-off valve is in the closed state while power of can be achieved.
Description
Technical field
The invention belongs to gas valve annex, particularly adopt the valve accessories of the emergency cut-off combustion gas of electronic cut-out hand reset mode.
Background technique
In order to ensure that the valve of some emergency cut-off fuel gas transportation pipelines when there is accident or other potential safety hazards is installed in security needs in gas ductwork, conventional ZCRD series open type gas emergency cut-off valve is exactly a kind of preferably, and this valve keeps valve normally open without the need to electricity consumption.But valve is still in opening-wide state when occurring that unexpected abnormal accident causes power failure, there is potential safety hazard, do not meet " gas service pipe should establish manual repid cut-off valve and emergency automatic shutoff valve: must be in closed condition (open type) when emergency automatic shutoff valve has a power failure " requirement that standard GB/T 50028--2006 " Code for design of city gas engineering " specifies.
Summary of the invention
In order to overcome the deficiency that must be in closed condition when existing emergency automatic shutoff valve can not reach power failure, the invention provides a kind of gas cut off valve power-off drive unit, use this gas cut off valve power-off drive unit existing ZCRD series open type gas emergency cut-off valve can be realized must being in when having a power failure the requirement of closed condition.
The technical solution adopted for the present invention to solve the technical problems is: a kind of gas cut off valve power-off drive unit, it is characterized in that: comprise drive circuit and solenoid circuit, described drive circuit is that capacitance resistance dropping equipment connects bridge rectifier, then first order transistor amplifier is connected successively, second level transistor amplifier, the transistor collector of second level amplification circuit is connected to relay coil, described solenoid circuit is the bridge rectifier output terminal one end ground connection connecting Ac, the other end connects two electrolytic condenser in parallel successively by diode, gas cut off valve electromagnetic coil, ground connection after relay contact.
When the working principle of device disclosed by the invention is energising after resistance-capacitance depressurization low tension rectification through amplifier to relay coil, relay normally-closed contact is in turnoff state, gas cut off valve electromagnetic coil no current passes through, high-tension electricity after rectification filters through diode and charges to high power capacitor, charging terminates substantially not consume electric energy afterwards, the relay coil power-off when there is powering-off state, relay contact is in closed state, capacitor discharge gas cut off valve electromagnetic coil is energized, and under its effect, gas cut off valve is closed.
Gas cut off valve power-off drive unit disclosed by the invention can realize cut-off valve throttle down when power-off, existing ZCRD series open type gas emergency cut-off valve can be realized the requirement that must be in closed condition when having a power failure.
Accompanying drawing explanation
Accompanying drawing 1 is structural representation of the present invention,
In figure, 1. capacitance resistance dropping equipment, 2. low pressure bridge rectifier, 3. first order transistor amplifier, 4. second level transistor amplifier, 5. relay coil, 6. high pressure bridge rectifier, 7. diode, two capacitors of 8. parallel connection, 9. gas cut off valve electromagnetic coil, 10. relay contact.
Embodiment
The specific embodiment of the present invention is, as shown in the figure:
Embodiment 1, a kind of gas cut off valve power-off drive unit, it is characterized in that: comprise drive circuit and solenoid circuit, described drive circuit is that capacitance resistance dropping equipment 1 connects low pressure bridge rectifier 2, then first order transistor amplifier 3 is connected successively, second level transistor amplifier 4, the transistor collector of second level amplification circuit is connected to relay coil 5, described solenoid circuit is the bridge rectifier 6 output terminal one end ground connection connecting Ac, the other end connects two electrolytic condenser 8 in parallel successively by diode 7, gas cut off valve electromagnetic coil 9, ground connection after relay contact 10.
Claims (2)
1. a gas cut off valve power-off drive unit, it is characterized in that: comprise drive circuit and solenoid circuit, described drive circuit is that capacitance resistance dropping equipment connects bridge rectifier, then first order transistor amplifier is connected successively, second level transistor amplifier, the transistor collector of second level amplification circuit is connected to relay coil, described solenoid circuit is the bridge rectifier output terminal one end ground connection connecting Ac, the other end connects two capacitors in parallel successively by diode, gas cut off valve electromagnetic coil, ground connection after relay contact.
2. gas cut off valve power-off drive unit according to claim 1, is characterized in that: the transistor base of described first order transistor amplifier is equipped with voltage-stabiliser tube.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310625081.XA CN104676066A (en) | 2013-11-29 | 2013-11-29 | Power-off driving device for gas cut-off valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310625081.XA CN104676066A (en) | 2013-11-29 | 2013-11-29 | Power-off driving device for gas cut-off valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104676066A true CN104676066A (en) | 2015-06-03 |
Family
ID=53311489
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310625081.XA Pending CN104676066A (en) | 2013-11-29 | 2013-11-29 | Power-off driving device for gas cut-off valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104676066A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2144387Y (en) * | 1992-12-02 | 1993-10-20 | 江毅 | Electronic ballast for dc fluorescent lamp |
| DE202006018756U1 (en) * | 2006-12-08 | 2007-03-01 | Wissenschaftliche Gerätebau Dr.-Ing. Herbert Knauer GmbH | Valve e.g. shut-off valve, for controlling flow of e.g. gas, has switch with change-over switch for connecting electric motor in actuating position in series switching with capacitor to power supply device that supplies voltage to actuator |
| CN101126467A (en) * | 2007-08-13 | 2008-02-20 | 欧好光电控制技术（上海）有限公司 | Solenoid valve for gas automatic cutting in emergency |
| CN201190824Y (en) * | 2008-04-29 | 2009-02-04 | 济南铭迪机械制造有限公司 | Gas emergency cut-off valve |
| CN101640097A (en) * | 2009-07-14 | 2010-02-03 | 北京市燕山工业燃气设备有限公司 | Electromagnetic coil circuit |
| JP4774207B2 (en) * | 2004-12-02 | 2011-09-14 | 株式会社カワデン | Shut-off valve |
| CN202852133U (en) * | 2012-06-20 | 2013-04-03 | 朱崇新 | Automatic type electromagnetic rapid gas safe stop valve |
-
2013
- 2013-11-29 CN CN201310625081.XA patent/CN104676066A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2144387Y (en) * | 1992-12-02 | 1993-10-20 | 江毅 | Electronic ballast for dc fluorescent lamp |
| JP4774207B2 (en) * | 2004-12-02 | 2011-09-14 | 株式会社カワデン | Shut-off valve |
| DE202006018756U1 (en) * | 2006-12-08 | 2007-03-01 | Wissenschaftliche Gerätebau Dr.-Ing. Herbert Knauer GmbH | Valve e.g. shut-off valve, for controlling flow of e.g. gas, has switch with change-over switch for connecting electric motor in actuating position in series switching with capacitor to power supply device that supplies voltage to actuator |
| CN101126467A (en) * | 2007-08-13 | 2008-02-20 | 欧好光电控制技术（上海）有限公司 | Solenoid valve for gas automatic cutting in emergency |
| CN201190824Y (en) * | 2008-04-29 | 2009-02-04 | 济南铭迪机械制造有限公司 | Gas emergency cut-off valve |
| CN101640097A (en) * | 2009-07-14 | 2010-02-03 | 北京市燕山工业燃气设备有限公司 | Electromagnetic coil circuit |
| CN202852133U (en) * | 2012-06-20 | 2013-04-03 | 朱崇新 | Automatic type electromagnetic rapid gas safe stop valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20150603 |
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| WD01 | Invention patent application deemed withdrawn after publication |