CN101255923A - Gas cutting-off valve for intelligent industry combustion - Google Patents
Gas cutting-off valve for intelligent industry combustion Download PDFInfo
- Publication number
- CN101255923A CN101255923A CNA2007101757358A CN200710175735A CN101255923A CN 101255923 A CN101255923 A CN 101255923A CN A2007101757358 A CNA2007101757358 A CN A2007101757358A CN 200710175735 A CN200710175735 A CN 200710175735A CN 101255923 A CN101255923 A CN 101255923A
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- valve
- control
- damping
- solenoid valve
- control signal
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Abstract
The present invention comprises an electromagnetic valve, a damp part, an opening regulation snail, a damp cavity electromagnetic switch, an electronic circuit board and so on. When the damp cavity is electrified, the valve can open slowly and reducing valve opening shake caused by exterior disturb and control signal fluctuate when adjusting proportion to ensure the steady gas flow. The circuit design of electromagnetic valve makes the valve has open and cut off function as common electromagnetic valve, also receives control of exterior proportion signal to alter flux. The opening regulation snail on the air damp part can determine the final position of the damp piston and ensures the maximum flow of valve.
Description
Technical field
The present invention relates to a kind of collect machinery and electronic control be the industrial fuel gas safety shut-off valves of one.It has gas safety cut-off, slowly opens multiple functions such as flow control and ratio adjusting.
Technical background
Along with the enforcement of China's West-East National Gas Transmission Project, a large amount of clean rock gases begin to obtain using at industrial field.Simultaneously, rock gas is a kind of very easily blast, dangerous very high fuel.Use rock gas to become the main problem of pendulum in face of end user and equipment manufacturers efficiently safely.The product of existing home and abroad production firm only has one or binomial function, if will finish complete control, also need add peripheral unit, and the cost height is installed complicated.
In order to solve the problem of existing product, this intelligent industry combustion gas valve is introduced traditional electromagnetic valve with controllable silicon technology and pneumatic damping control technique especially.This valve collection combustion gas is fast and safely cut off, slowly opened, multiple functions such as flow control and ratio adjusting.And available standards 4-20mA industry control message, the control valve aperture is regulated gas flow.
Summary of the invention
The present invention includes with the bottom: 1. valve body 2. valve ports 3. move iron core 4. coils 5. static iron cores 6. damping cavity 7. damping cavity pistons 8. aperture adjusting screw 9. damping cavity magnetic switch 10. electronic circuit boards 11. circuit board shells.
The technological scheme that technical solution problem of the present invention adopts is:
1. the solenoid valve top installs a damping cavity additional, and the piston in the damping cavity directly is connected with the moving iron core of bottom control valve switch, makes the unlatching of valve be subjected to damping piston control.Designed a little magnetic switch in the damping cavity especially, the magnetic field that utilizes solenoid valve oneself to produce, control damping cavity function.Both, after the solenoid valve energising, attract the magnetic switch iron core, and made switch on, damping cavity produces damping; After the solenoid valve outage, coil loses electromagnetic attraction, and switch is opened under spring action, and the damping of damping cavity reduces greatly, guarantees the quick closedown of valve.
2. in the power supply circuits of traditional electrical magnetic coil, add controllable silicon electric power adjustment module and trigger, make solenoid valve reach corresponding aperture by the control requirement with standard industry control signal 4-20mA, thus control combustion flow.Install a logic judging circuit in addition additional in circuit, only control signal occurring, and signal is during greater than 4mA, solenoid valve is just carried out proportional control, when control signal does not have or during less than 4mA, valve will be in full-gear.
Purpose of the present invention, feature and advantage will be elaborated by specific embodiments.
Description of drawings
The structure principle chart of Fig. 1 intelligent electromagnetic valve under off-position
The structure principle chart of Fig. 2 intelligent electromagnetic valve under "on" position
Fig. 3 intelligent electromagnetic valve circuit control principle figure
Specific embodiments
By following steps, but the concrete working procedure of this valve of detail knowledge:
1. after the solenoid valve energising, electromagnetic coil gets electric generating an electromagnetic field, and attracts moving iron core to move upward, and opens valve.In moving iron core moved upward process, piston produced damping function in the damping cavity, made moving iron core slowly to move upward, and had realized the slow unlatching of valve.The slow unlatching of valve strengthens gas flow gradually, avoids a large amount of combustion gas to enter burner hearth suddenly, causes detonation.
2. a little magnetic switch is arranged in the damping cavity bottom.After energising, the soft magnetic bodies of this switch is attracted by following big electromagnetic coil and damping cavity is diffused mouth close, and the damping cavity bottom cuts off with extraneous, produces damping when damping piston moves.After the electromagnetic coil outage, this switch is opened under the effect of spring, and the damping of damping cavity reduces greatly, thereby realizes the quick closedown of valve.
3. the air damping component upper ends has an aperture adjusting screw, the length that this screw stretches in damping cavity, determined damping piston final for the position, thereby the maximum open position of decision valve has been determined the peak rate of flow of valve.By regulating this screw, can change the peak rate of flow of valve.
4. on the valve circuit plate, designed a control signal identification switch especially.The effect of this switch is that power supply voltage directly drives solenoid valve and opens when outside disproportional control signal or signal intensity during less than 4mA; After control signal occurred, solenoid valve was by control signal command control gas flow.
5. open and after ratio control signal occurred, the power supply of electromagnetic coil was subjected to scaling signal and SCR control on the solenoid valve, and electromagnetic force is changed when valve energising, thus the unlatching size of control valve.Valve port rubber external form makes gas flow and control ratio signal be simple linear relationship through particular design.
6. when ratio was regulated after energising, the pneumatic damping chamber can be slowed down because the valve opening that external disturbance and control signal fluctuation cause shakes, to guarantee fuel gas flow stably.
7. after power supply is cut off, the electromagnetic coil dead electricity, static iron core loses magnetic force, and damping cavity magnetic switch dead electricity is opened, and loses damping, and moving iron core quick closedown under spring reaction power is to cut off fuel gas flow.
This beneficial effect of the invention is: on a magnetic valve, realize gas safety cut-off by machinery and Electronic Design combination, slowly open stream The multi-functionals such as amount control and ratio adjusting.
Claims (4)
1, a kind of intelligent gas safety cut-off solenoid valve comprises:
Critical pieces such as electromagnetic valve body, damped part, aperture adjusting screw, damping cavity magnetic switch, electronic circuit board.
It is by the switching of magnetic switch in the control damping cavity, the movement velocity of control damping piston in the chamber.When valve opening, magnetic switch is closed in the damping cavity, produces damping, realizes the slow unlatching of valve.When the valve outage was closed, damper switch was opened, and weakens damping greatly, realizes the quick closedown of valve.
2, according to the intelligent gas safety cut-off solenoid valve of claim 1, also comprise:
Circuit design makes the power supply of the coil of solenoid valve, can pass through SCR control, accepts outside scaling signal control, and electromagnetic force is changed, thus the unlatching size of control valve.
Valve port rubber external form makes gas flow and control ratio signal be simple linear relationship through particular design.
The control signal identification switch has also designed a control signal identification switch especially on the circuit board.The effect of this switch is that power supply voltage directly drives solenoid valve and opens when outside disproportional control signal or signal intensity during less than 4mA; After control signal occurred, solenoid valve was by control signal command control gas flow.
3, according to the intelligent gas safety cut-off solenoid valve of claim 1, wherein another effect in pneumatic damping chamber is, after the valve energising, when the beginning ratio is regulated, slow down because the valve opening that external disturbance and control signal fluctuation cause shakes, to guarantee fuel gas flow stably.
4, according to the intelligent gas safety cut-off solenoid valve of claim 1, wherein the aperture adjusting screw on the air damping parts can determine the position that damping piston is final, has determined the peak rate of flow of valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007101757358A CN101255923A (en) | 2007-10-11 | 2007-10-11 | Gas cutting-off valve for intelligent industry combustion |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007101757358A CN101255923A (en) | 2007-10-11 | 2007-10-11 | Gas cutting-off valve for intelligent industry combustion |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101255923A true CN101255923A (en) | 2008-09-03 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2007101757358A Pending CN101255923A (en) | 2007-10-11 | 2007-10-11 | Gas cutting-off valve for intelligent industry combustion |
Country Status (1)
| Country | Link |
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| CN (1) | CN101255923A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102927340A (en) * | 2011-08-12 | 2013-02-13 | 邹燕 | Gas emergency cut-off valve |
| CN102966742A (en) * | 2012-11-16 | 2013-03-13 | 广州市精鼎电器科技有限公司 | Flow-limiting fuel gas proportional valve |
| CN104344052B (en) * | 2013-07-30 | 2017-02-08 | 卡尔冬斯燃烧自控系统（上海）有限公司 | Electromagnetic valve |
| CN108006267A (en) * | 2017-07-13 | 2018-05-08 | 宁波方太厨具有限公司 | A kind of gas stove valve |
| CN110657279A (en) * | 2019-10-12 | 2020-01-07 | 深圳市凌宝电子有限公司 | Solenoid valve capable of identifying on-off state |
| CN112555487A (en) * | 2018-06-15 | 2021-03-26 | 杭州三花研究院有限公司 | Electric valve |
-
2007
- 2007-10-11 CN CNA2007101757358A patent/CN101255923A/en active Pending
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102927340A (en) * | 2011-08-12 | 2013-02-13 | 邹燕 | Gas emergency cut-off valve |
| CN102927340B (en) * | 2011-08-12 | 2014-07-02 | 邹燕 | Gas emergency cut-off valve |
| CN102966742A (en) * | 2012-11-16 | 2013-03-13 | 广州市精鼎电器科技有限公司 | Flow-limiting fuel gas proportional valve |
| CN102966742B (en) * | 2012-11-16 | 2014-08-20 | 广州市精鼎电器科技有限公司 | Flow-limiting fuel gas proportional valve |
| CN104344052B (en) * | 2013-07-30 | 2017-02-08 | 卡尔冬斯燃烧自控系统（上海）有限公司 | Electromagnetic valve |
| CN108006267A (en) * | 2017-07-13 | 2018-05-08 | 宁波方太厨具有限公司 | A kind of gas stove valve |
| CN108006267B (en) * | 2017-07-13 | 2024-02-20 | 宁波方太厨具有限公司 | Valve body of gas stove |
| CN112555487A (en) * | 2018-06-15 | 2021-03-26 | 杭州三花研究院有限公司 | Electric valve |
| CN110657279A (en) * | 2019-10-12 | 2020-01-07 | 深圳市凌宝电子有限公司 | Solenoid valve capable of identifying on-off state |
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Legal Events
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Open date: 20080903 |