CN201723820U - Electronic control system for electromagnetic valve - Google Patents
Electronic control system for electromagnetic valve Download PDFInfo
- Publication number
- CN201723820U CN201723820U CN2010202421144U CN201020242114U CN201723820U CN 201723820 U CN201723820 U CN 201723820U CN 2010202421144 U CN2010202421144 U CN 2010202421144U CN 201020242114 U CN201020242114 U CN 201020242114U CN 201723820 U CN201723820 U CN 201723820U
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- Prior art keywords
- electromagnetic valve
- control system
- electronic control
- detection sensor
- electromagnetic
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Abstract
The utility model discloses an electronic control system for an electromagnetic valve, which comprises a power supply unit used for supplying power for the system, an electromagnetic valve and an electromagnet action control metal rod connected with an electromagnetic iron core of the electromagnetic valve; and the electronic control system also comprises a position detection sensor and an electromagnetic relay, wherein the position detection sensor is used for detecting the position of the electromagnet action control metal rod, the electromagnetic relay is used for controlling on/off of the electromagnetic valve, and the electromagnetic relay is connected with the position detection sensor and the electromagnetic relay respectively. The electronic control system has simple structure, is switched on or off quickly and reliably, does not need to be adjusted on site, is used and maintained conveniently, and is convenient for being popularized and used.
Description
Technical field
The utility model belongs to valve electron controls technology field, especially relates to a kind of electromagnetic valve electronic control system.
Background technique
At present, the electromagnetic valve control system that domestic manufacturer (as Shanghai steam turbine company, Nanjing steam turbine company, Wuhan steam turbine company etc.) produces, all have the driving mechanism of the control electromagnetic valve door action of mechanical motion position impact stroke switch as shown in Figure 2, be used for the control of electromagnetic valve opening process.Electromagnetic valve Machinery Control System as shown in Figure 2 is made of the first position limit switch 2-1, the second position limit switch 2-2 and metal controlling rod 2-3, metal controlling rod 2-3 and electromagnetic core link together, during the electromagnet action, metal controlling rod 2-3 touches position limit switch, and state of a control is changed.Its shortcoming is:
1, structure and installation complexity.Because when the electromagnetic valve Machinery Control System adopts the electromagnet action, drive connected metal controlling rod 2-3 touching position limit switch, state of a control is changed, system is higher to the requirement on machining accuracy of the mounting point of the first position limit switch 2-1 and the second position limit switch 2-2 and metal controlling rod 2-3, hardware has reduced the reliability of equipment with the change of meeting service time occurrence positions.
2, slow movement.Since metal controlling rod 2-3 with the collision of the first position limit switch 2-1, the second position limit switch 2-2 under just make it move contact to change, switch motion has certain time delay.
3, control procedure produces spark.Because switch motion has certain time delay, easily produce bigger electrical spark, the working life of reducing by the first position limit switch 2-1 and the second position limit switch 2-2.
4, maintenance is frequent.Because control structure adopts the machinery action mode, cause maintenance and adjustment frequent, equipment safety operation is exerted an influence.
The model utility content
Technical problem to be solved in the utility model is at above-mentioned deficiency of the prior art, propose a kind of simple in structure, switch motion is reliable rapidly, the scene does not need to adjust, operation and maintenance electromagnetic valve electronic control system easily.
For solving the problems of the technologies described above, the technical solution adopted in the utility model is: a kind of electromagnetic valve electronic control system, be included as the power subsystem, electromagnetic valve of system power supply and the electromagnet action control metallic rod of joining with electromagnetic core on the described electromagnetic valve, it is characterized in that: also comprise the electromagnetic relay that is used to detect the position-detection sensor of electromagnet action control metallic rod position and is used for the control electromagnetic valve door opening and closing state, described electromagnetic relay joins with described position-detection sensor and electromagnetic valve respectively.
Described power subsystem is for providing the D.C. regulated power supply of the voltage in the 12-24V scope.
Described electromagnetic valve is the twin coil self-holding electromagnetic valve that includes one group of starting coil L1 and one group of hold-in winding L2.
Described position-detection sensor is near switch.
Described near switch be vortex type near switch, capacitive approach switch or photoelectric near switch.
Described electromagnetic relay is the electromagnetic relay that has extinguishing arc of sealing.
The utility model compared with prior art has the following advantages:
1, simple in structure.Owing to adopt near switch as position transducer, there is not the mechanical collision movement process, can not produce the wearing and tearing of controlling component, extremely low to the required precision of the processing of parts, improved the reliability of control system.
2, switch is swift in motion reliably.Because the electromagnetic relay that has extinguishing arc that adopts sealing is as control unit, being swift in motion of switch is reliable, can reduce the influence that electrical spark produces greatly, makes the reliability of control system obtain effective guarantee.
3, operation and maintenance is convenient.Owing to be to detect and control task in system's running by finishing near the electromagnetic relay that has extinguishing arc of switch and sealing, can satisfy the requirement of electromagnetic valve control working life fully, need not frequent replacing.
4, the scene need not adjusted.Since simple in structure, need not carry out precision adjustment to the position of electromagnet action control metallic rod.
Below by drawings and Examples, the technical solution of the utility model is described in further detail.
Description of drawings
Fig. 1 is a structured flowchart of the present utility model.
Fig. 2 is the structural representation of existing electromagnetic valve Machinery Control System driving mechanism.
Fig. 3 concerns schematic representation for the position of the utility model electromagnet action control metallic rod and position-detection sensor.
Fig. 4 is the utility model one embodiment's circuit theory diagrams.
Description of reference numerals:
The 1-power subsystem; The 2-electromagnetic valve; 3-electromagnet action control metallic rod;
The 4-position-detection sensor; The 5-electromagnetic relay; 2-1-first position limit switch;
2-2-second position limit switch; 2-3-metal controlling rod.
Embodiment
As shown in Figure 1, the utility model is included as the power subsystem 1, electromagnetic valve 2 of system power supply and the electromagnet action control metallic rod 3 of joining with electromagnetic core on the described electromagnetic valve 2, also comprise the electromagnetic relay 5 that is used to detect the position-detection sensor 4 of described electromagnet action control metallic rod 3 positions and is used to control described electromagnetic valve 2 on off states, described electromagnetic relay 5 joins with described position-detection sensor 4 and electromagnetic valve 2 respectively.Described position-detection sensor 4 is near switch, described near switch be vortex type near switch, capacitive approach switch or photoelectric near switch.
In conjunction with Fig. 3 and Fig. 4, described power subsystem 1 is for providing the D.C. regulated power supply of the voltage in the 12-24V scope.Described electromagnetic valve 2 is for including the twin coil self-holding electromagnetic valve of one group of starting coil L1 and one group of hold-in winding L2.Described electromagnetic relay 5 is the electromagnetic relay that has extinguishing arc of sealing.As shown in Figure 4, the IN4007 commutation diode that is connected in parallel on electromagnetic relay 5 two ends is to be used to prevent that electromagnetic relay coil from damaging switching element at the backward voltage of outage moment generation, be connected in parallel on the capacitor C 5 at hold-in winding L2 two ends, the effect of C6 is: when the normally-closed contact that 1, guarantees electromagnetic relay disconnects, the voltage at hold-in winding two ends begins to raise from zero volt, and no-spark produces between the contact of electromagnetic relay; 2, passing through rectifier when electromagnet coil is powered, to the ripple voltage filtering of rectification output with ac power supply.The diode D8 that is connected on starting coil L1 two ends is used for discharging rapidly at the backward voltage that starting coil L1 outage makes starting coil L1 produce moment, protects rectifier cell in parallel with it and switch in series not to be reversed the voltage effect and damages; The diode D9 that is connected on hold-in winding L2 two ends is used for discharging rapidly at the backward voltage that hold-in winding L2 outage makes hold-in winding L2 produce moment, protects rectifier cell in parallel with it and switch in series not to be reversed the voltage effect and damages.
Working procedure of the present utility model is: turn on the power switch, electromagnet energising on the electromagnetic valve 2, the starting coil L1 of the low internal resistance of 30 Ω is by the electric current of about 7A, electromagnetic attraction drives the mechanical mechanism of electromagnetic valve 2 electromagnetic valve 2 is opened, the distance of electromagnet action control metallic rod 3 and position-detection sensor 4 by the 17mm of reset condition (± 0.75mm), rising to spacing is 0.5-2mm, this moment, position-detection sensor 4 detected the induced signal of electromagnet action control metallic rod 3, output one control voltage, make electromagnetic relay 5 inhale rapidly and, disconnect and to be used for the normally-closed contact of short circuit hold-in winding L2 originally, the magnet control coil is changed into 30 Ω+1100 Ω=1130 Ω by the low internal resistance of 30 original Ω, operating current reduces to about 0.2A, the electromagnetic attraction of whole winding is reduced to 1/3 when starting, and can satisfy the demand that electromagnet coil is worked over a long time.
The above; it only is preferred embodiment of the present utility model; be not that the utility model is imposed any restrictions; everyly any simple modification that above embodiment did, change and equivalent structure are changed, all still belong in the protection domain of technical solutions of the utility model according to the utility model technical spirit.
Claims (6)
1. electromagnetic valve electronic control system, be included as the power subsystem (1), electromagnetic valve (2) of system power supply and the electromagnet action control metallic rod (3) of joining with electromagnetic core on the described electromagnetic valve (2), it is characterized in that: also comprise the electromagnetic relay (5) that is used to detect the position-detection sensor (4) of described electromagnet action control metallic rod (3) position and is used to control described electromagnetic valve (2) on off state, described electromagnetic relay (5) joins with described position-detection sensor (4) and electromagnetic valve (2) respectively.
2. according to the described electromagnetic valve electronic control system of claim 1, it is characterized in that: described power subsystem (1) is for providing the D.C. regulated power supply of the voltage in the 12-24V scope.
3. according to the described electromagnetic valve electronic control system of claim 1, it is characterized in that: described electromagnetic valve (2) is for including the twin coil self-holding electromagnetic valve of one group of starting coil L1 and one group of hold-in winding L2.
4. according to the described electromagnetic valve electronic control system of claim 1, it is characterized in that: described position-detection sensor (4) is near switch.
5. according to the described electromagnetic valve electronic control system of claim 4, it is characterized in that: described near switch be vortex type near switch, capacitive approach switch or photoelectric near switch.
6. according to the described electromagnetic valve electronic control system of claim 1, it is characterized in that: described electromagnetic relay (5) is the electromagnetic relay that has extinguishing arc of sealing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202421144U CN201723820U (en) | 2010-06-28 | 2010-06-28 | Electronic control system for electromagnetic valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202421144U CN201723820U (en) | 2010-06-28 | 2010-06-28 | Electronic control system for electromagnetic valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201723820U true CN201723820U (en) | 2011-01-26 |
Family
ID=43492150
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010202421144U Expired - Lifetime CN201723820U (en) | 2010-06-28 | 2010-06-28 | Electronic control system for electromagnetic valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201723820U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102721541A (en) * | 2012-07-02 | 2012-10-10 | 山东电力集团公司电力科学研究院 | Testing device and testing method for closing time of steam extraction check valve of steam turbine |
| CN104989859A (en) * | 2015-06-26 | 2015-10-21 | 江苏永钢集团有限公司 | Intermediate relay protection device in electromagnetic valve control circuit |
| CN107031000A (en) * | 2017-05-25 | 2017-08-11 | 百汇精密塑胶模具（深圳）有限公司 | A kind of mechanism for being used to control die sinking order |
| CN110376538A (en) * | 2018-10-25 | 2019-10-25 | 智佳电子股份有限公司 | Magnet-type inductive module |
-
2010
- 2010-06-28 CN CN2010202421144U patent/CN201723820U/en not_active Expired - Lifetime
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102721541A (en) * | 2012-07-02 | 2012-10-10 | 山东电力集团公司电力科学研究院 | Testing device and testing method for closing time of steam extraction check valve of steam turbine |
| CN102721541B (en) * | 2012-07-02 | 2015-10-28 | 山东电力集团公司电力科学研究院 | Steam extraction check valve of steam turbine shut-in time method of testing |
| CN104989859A (en) * | 2015-06-26 | 2015-10-21 | 江苏永钢集团有限公司 | Intermediate relay protection device in electromagnetic valve control circuit |
| CN107031000A (en) * | 2017-05-25 | 2017-08-11 | 百汇精密塑胶模具（深圳）有限公司 | A kind of mechanism for being used to control die sinking order |
| CN107031000B (en) * | 2017-05-25 | 2023-09-19 | 百汇精密塑胶模具（深圳）有限公司 | Mechanism for controlling die opening sequence |
| CN110376538A (en) * | 2018-10-25 | 2019-10-25 | 智佳电子股份有限公司 | Magnet-type inductive module |
| CN110376538B (en) * | 2018-10-25 | 2021-09-07 | 智佳电子股份有限公司 | Magnet type induction module |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20110126 |
|
| CX01 | Expiry of patent term |