CN102966783B - Electric control system for normally closed gas safety solenoid valves - Google Patents
Electric control system for normally closed gas safety solenoid valves Download PDFInfo
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- CN102966783B CN102966783B CN201210479201.5A CN201210479201A CN102966783B CN 102966783 B CN102966783 B CN 102966783B CN 201210479201 A CN201210479201 A CN 201210479201A CN 102966783 B CN102966783 B CN 102966783B
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Abstract
The invention discloses an electric control system for normally closed gas safety solenoid valves, which comprises a temperature-controlled switch unit, a delayed switching unit and a switch unit, the temperature-controlled switch unit, the delayed switching unit and the switch unit are sequentially connected in series between a pre-controller power supply and a valve load, a capacitor step-down unit is also connected between the pre-controller power supply and the valve load, the input ends of the capacitor step-down unit and the input ends of the temperature-controlled switch unit are electrically connected with the pre-controller power supply, and the output ends of the capacitor step-down unit and the output ends of the switch unit are connected with the valve load through a full-wave rectification unit. Compared with the prior art, the system not only can ensure that a valve has enough opening power, but also can ensure that the valve can operate with the lowest energy consumption, the lowest voltage and the minimum current after being opened, and guarantees the lowest temperature rise of the heat effect of electrification, thus eliminating accidents caused by the electric spark produced by the switch element or the heating and short-circuiting of the a solenoid or the like in the process of electrification.
Description
Technical field
The present invention relates to fuel gas safe electromagnetic valve electric control field, relate in particular to a kind of normal close type fuel gas safe electromagnetic valve automatical control system.
Background technique
Along with the needs that domestic production, living facilities automation are controlled, before the several years, many producers are just from external introduction normal close type fuel gas safe electromagnetic valve.For realizing the nationalization part of this serial solenoid valve, producer has carried out the development after equipment introduction, but show through market survey no matter these series product are that import or the domestic running coil (valve load) that all exists generate heat, running temperature is high, coil burns out, and causes the phenomenon of wire short-circuiting.Have a strong impact on gas burning system and normally produced, serious more can cause raw gas explosion accident, had major safety risks.And gas electromagnetic valve is the switch gear in fuel gas transportation pipeline, and gas electromagnetic valve automatical control system is the core of solenoid valve system.For the problems referred to above, we carry out finding that it is to cause because the Control System Design in this type of fuel gas safe electromagnetic valve exists defect after research of technique.
Summary of the invention
In view of this, technical problem to be solved by this invention is: provide that a kind of running temperature is low, coil not easy burn-out and the better normal close type fuel gas safe electromagnetic valve of Security automatical control system.
In order to achieve the above object, the present invention adopts following technological scheme to realize:
A kind of normal close type fuel gas safe electromagnetic valve automatical control system, wherein, comprise and be connected between higher level's control gear power supply and valve load and the temperature switch device of connecting successively each other, delay switching device and switch gear, between described higher level's control gear power supply and valve load, be also connected with capacitance decompression device, the input end of described capacitance decompression device and the input end of described temperature switch device are electrically connected at described higher level's control gear power supply, the output terminal of described capacitance decompression device and the output terminal of described switch gear are all connected in described valve load by full-wave fairing attachment.
As preferably, described capacitance decompression device comprises capacitor C 1 and is connected in parallel on the resistance R 1 in capacitor C 1.
As preferably, described delay switching device is vibration/timer circuit device able to programme.
As preferably, described switch gear is controllable silicon contactless switching device.
As shown from the above technical solution, the invention has the beneficial effects as follows:
Compared to existing technology, the present invention is by being provided with capacitance decompression device, full-wave fairing attachment, delay switching device, switch gear and temperature switch device, make it can guarantee that valve has and enough open valve power, can guarantee again with lowest energy consumption, minimum voltage and minimum current, to move after valve opening, guaranteed the lowest temperature rise of energising thermal efficiency, thus the accident that the electrical spark that elimination causes because of switching element in galvanization or coil heating short circuit etc. cause.
Accompanying drawing explanation
Fig. 1 is circuit theory schematic diagram of the present invention.
Fig. 2 is circuit theory one-line schematic diagram of the present invention.
Fig. 3 is the structural representation of the present invention while being installed on solenoid valve.
Fig. 4 is the local structure for amplifying schematic diagram at A place in Fig. 3.
1, capacitance decompression device; 2, full-wave fairing attachment;
3, switch gear; 4, delay switching device;
5, temperature switch device; 6, valve load;
7, control circuit board.
Embodiment
In order to make those skilled in the art can further understand feature of the present invention and technology contents, refer to following about detailed description of the present invention and accompanying drawing.
Refer to shown in Fig. 1 and Fig. 4, the invention provides a kind of normal close type fuel gas safe electromagnetic valve automatical control system, wherein, comprise and be connected between higher level's control gear power supply and valve load 6 and the temperature switch device 5 of connecting successively each other, delay switching device 4 and switch gear 3, between described higher level's control gear power supply and valve load 6, be also connected with capacitance decompression device 1, the input end of the input end of described capacitance decompression device 1 and described temperature switch device 5 is electrically connected at described higher level's control gear power supply, the output terminal of the output terminal of described capacitance decompression device 1 and described switch gear 3 is all connected in described valve load 6 by full-wave fairing attachment 2.As preferably, described capacitance decompression device comprises capacitor C 1 and is connected in parallel on the resistance R 1 in capacitor C 1, and described delay switching device 4 is vibration/timer circuit device able to programme, and described switch gear is controllable silicon contactless switching device.The present invention can be arranged on capacitance decompression device, full-wave fairing attachment, switch gear and delay switching device on a control circuit board 7.As shown in Figures 3 and 4, the mounting point of control circuit board 7, and the mounting point of temperature switch device and coil (valve load).
Concrete each Unit Design control module is following explanation respectively:
1, adopt capacitance decompression device:
Conventional step-down is resistance step-down, half-wave step-down etc., but native system adopts capacitance decompression.Its advantage is according to the logical stopping direct current that exchanges of electric capacity, with capacitive reactance, the principle of mating with load impedance etc., with the size of Capacity, adjusts optimum operation voltage.Simultaneously capacitance decompression has also been evaded the defect of the loss electric energy heating that other step-down modes such as resistance cause.
2, take full-wave fairing attachment:
In the design of this type of valve, all can occur because actuating coil produces electric induction with iron core and housing, thereby frame produced the phenomenon that eddy current mutual inductance circulation produces heat in the past.The present takes the mode of full direct current can eliminate this defect, makes power factor and solenoid valve inhale journey moment and is much improved.
3, take controllable silicon contactless switching device to switch startup:
Take controllable silicon contactless switching device to switch after startup, through capacitance decompression, guaranteed low voltage power supply, thereby eliminated the explosive harm in gas facility of switching due to the wrong point of relay that the spark that produces brings.As can be seen here, adopt controllable silicon to switch more reliable than relay switch.
4, take delay switching device:
This device is during this control starts, full voltage power supply to be converted to the core of capacitance decompression power supply.This device energising can timing automatic be closed the 8th pin current potential after driving valve, turns low potential.Controllable silicon trigger voltage is closed, thereby impel controlled power-off to transfer valve low voltage power supply to.When guaranteeing best low voltage, the operation of little electric current small-power, also obtained best power savings.
5, temperature switch device:
Temperature switch device is this valve automatical control system safety protection device.Once automatical control system is malfunctioning, or other reasons causes valve winding heating, and its thermal switch can cut off automatically from external control power supply, and auto-breaking closes valve, thereby has played self diagnosis protective function.Meanwhile to upper level, carry switching value signal, notify higher level to post a letter or participate in controlling.
6, adopt hermetically sealed modular designs:
This device is in order to eliminate the phenomenon that exposes of gas facility electricity consumption, and spy adopts hermetically sealed design, thereby has eliminated because of the generation that electrical spark causes the accidents such as gas explosion that electrical equipment produces.
Its working principle is as follows:
When solenoid valve need leave valve startup, during by higher level's control gear input AC 220v voltage, wherein control system is through U1-8 output high petential, through Q1, V2 controllable silicon VTH2 conducting C1 electric capacity short circuit, through the full wave rectifier of D2 bridge heap, make electromagnetic valve coil obtain full voltage DC electrical source, electric valve is opened.Now for stablizing valve iron-core coil open mode, through 10 second time of U1 time delay (adjustable) No. 8 pin output low potential V2 photoelectricity action, VTH2 controllable silicon is closed, this is through C1 capacitor step-down, D1 full wave rectifier makes valve winding transfer low voltage to, little electric current keeps normal operation, to arrive optimum operation power rating.This figure forms temperature control self-diagnosis system by CK1, CK2, being embedded in coil inside or valve housing inwall takes the circumstances into consideration to set, when valve is controlled its running temperature of malfunctioning coil fault when abnormal, its CK1, CK2 be output switch amount signal at once, in time outside throttle down, switching value signal is impelled to higher level's power-off and signal simultaneously, guarantee system security of operation.
Former solenoid valve data contrast as following table with using the solenoid valve test data after this control module newly developed:
Technical performance and Economic and Efficiency Analysis:
1, technical performance
From test data and current each user, use actual conditions, this series of valves product technical performance after this design improvement obviously improves.
Concrete following some explanation:
Valve running current of the present invention significantly declines, and power consumption significantly declines, and energy-saving effect is obvious, and the valve power consumption after improvement is original sixth.
Because electric current significantly declines, its running temperature is also down under normal temperature state and is moved, and operational safety significantly strengthens thus, frequently burns coil hidden danger and thoroughly eliminates, and coil extends working life, and safe handling property obtains Reliable guarantee.
Because running temperature is normal temperature, its valve increases substantially working life.
2, economic benefit and social benefit
This research and development of products success is a contribution greatly to country, society, enterprise.Make a concrete analysis of as follows:
Energy-saving benefit is obvious:
Former valve: operating voltage 220Vac, operating current 1.26A, power consumption 236W,
After improvement: operating voltage 220Vac, operating current 0.18A, power consumption 40W,
Its loss power minimizing value: 236-40=196W
Annual operation can be economized on electricity: 196W * 24 hour * 365 days=1716.96KWh.
Therefore, final statistic is very large, and the economic benefit of visible energy-saving consumption-reducing is huge.
(2) Safety performance improves
From security standpoint analysis, the running temperature extra-high-speed of former valve, burns out coil and happens occasionally.This is a large serious potential safety hazard at gas burning system.
Once coil temperature is too high to be burnt out on fire to be exactly a major accident, now to eliminate this hidden danger, guarantee safety, also produced immeasurable intangible benefit.
But the foregoing is only better possible embodiments of the present invention, not in order to limit to the scope of the claims of the present invention, thus the equivalent structure that all utilizations specification of the present invention and accompanying drawing content are done variation, all in like manner within the scope of the present invention.
Claims (4)
1. a normal close type fuel gas safe electromagnetic valve automatical control system, it is characterized in that, comprise and be connected between higher level's control gear power supply and valve load and the temperature switch device of connecting successively each other, delay switching device and switch gear, between described higher level's control gear power supply and valve load, be also connected with capacitance decompression device, the input end of described capacitance decompression device and the input end of described temperature switch device are electrically connected at described higher level's control gear power supply, the output terminal of described capacitance decompression device and the output terminal of described switch gear are all connected in described valve load by full-wave fairing attachment.
2. normal close type fuel gas safe electromagnetic valve automatical control system as claimed in claim 1, is characterized in that, described capacitance decompression device comprises capacitor C 1 and is connected in parallel on the resistance R 1 in capacitor C 1.
3. normal close type fuel gas safe electromagnetic valve automatical control system as claimed in claim 2, is characterized in that, described delay switching device is vibration/timer circuit device able to programme.
4. normal close type fuel gas safe electromagnetic valve automatical control system as claimed in claim 3, is characterized in that, described switch gear is controllable silicon contactless switching device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210479201.5A CN102966783B (en) | 2012-11-21 | 2012-11-21 | Electric control system for normally closed gas safety solenoid valves |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210479201.5A CN102966783B (en) | 2012-11-21 | 2012-11-21 | Electric control system for normally closed gas safety solenoid valves |
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| Publication Number | Publication Date |
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| CN102966783A CN102966783A (en) | 2013-03-13 |
| CN102966783B true CN102966783B (en) | 2014-12-03 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210479201.5A Active CN102966783B (en) | 2012-11-21 | 2012-11-21 | Electric control system for normally closed gas safety solenoid valves |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106594359B (en) * | 2016-12-19 | 2019-02-19 | 西安欧中材料科技有限公司 | Solenoid valve auto-adjusting circuit and its method |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2463637Y (en) * | 2001-01-02 | 2001-12-05 | 永嘉县嘉泰机器有限公司 | Variable voltage drive solenoid valve |
| CN2721998Y (en) * | 2004-05-26 | 2005-08-31 | 马卫民 | Impulsing electromagnetic valve with double magnets |
| CN202972125U (en) * | 2012-11-21 | 2013-06-05 | 浙江汉特姆阀门有限公司 | Electronic control system for normally closed gas safety solenoid valve |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH1153038A (en) * | 1997-08-06 | 1999-02-26 | Toyota Motor Corp | Actuator driving circuit |
| JP5185651B2 (en) * | 2008-02-19 | 2013-04-17 | 株式会社ベン | Power supply unit for solenoid valve |
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2012
- 2012-11-21 CN CN201210479201.5A patent/CN102966783B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2463637Y (en) * | 2001-01-02 | 2001-12-05 | 永嘉县嘉泰机器有限公司 | Variable voltage drive solenoid valve |
| CN2721998Y (en) * | 2004-05-26 | 2005-08-31 | 马卫民 | Impulsing electromagnetic valve with double magnets |
| CN202972125U (en) * | 2012-11-21 | 2013-06-05 | 浙江汉特姆阀门有限公司 | Electronic control system for normally closed gas safety solenoid valve |
Non-Patent Citations (2)
| Title |
|---|
| JP特开2009-197832A 2009.09.03 * |
| JP特开平11-53038A 1999.02.26 * |
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Denomination of invention: Electric control system of normally closed gas safety solenoid valve Effective date of registration: 20221109 Granted publication date: 20141203 Pledgee: Agricultural Bank of China Limited Qingtian County sub branch Pledgor: ZHEJIANG HANTEMU VALVE MANUFACTURE Co.,Ltd. Registration number: Y2022330003010 |