CN102853146A - Electric valve control system - Google Patents
Electric valve control system Download PDFInfo
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- CN102853146A CN102853146A CN2012103218860A CN201210321886A CN102853146A CN 102853146 A CN102853146 A CN 102853146A CN 2012103218860 A CN2012103218860 A CN 2012103218860A CN 201210321886 A CN201210321886 A CN 201210321886A CN 102853146 A CN102853146 A CN 102853146A
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- valve
- reduction gear
- control system
- motor
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Abstract
The invention mainly discloses an electric valve control system comprising a motor, a one-stage reducer, a two-stage reducer, a three-stage reducer, a valve, a synchronous valve tracker, a single chip and a phase loss detection unit. The output of the motor is connected onto the valve by the one-stage reducer, the two-stage reducer and the three-stage reducer; the synchronous valve tracker detects the aperture of the valve and transmits an aperture signal to the single chip; the single chip obtains a step pulse signal needed by the motor through the phase loss detection unit and transmits the signal to the motor and regulate. The electric valve control system accurately detects and controls the valve position and the moment by using the single chip technology and the electric detection devices.
Description
Technical field
The present invention relates to valve technology field, special relevant with a kind of electric valve control system.
Background technique
Valve is the indispensable fluid control devices of each department of national economy such as oil, chemical industry, power station, long-distance transport pipes, shipbuilding, nuclear industry, various cryogenic engineerings.Above-mentioned industrial expansion and needs have promoted the valve actuating device industrial expansion.In recent years, when satisfying the new demand of each side high parameter, to the aspects such as structure, material and production technology of valve actuating device, to how accomplishing that improving better performance, feasibility and reduction cost etc. also pays a great deal of attention.The intelligent valve actuating device with the old-fashioned valve actuating device of tradition relatively in, because of its have use convenient, flexibility and control accuracy is high, compact structure, have reliable failure handling mechanisms and timely the advantage such as alarm mechanism, man-machine interface close friend be widely used, and the excellent advanced bus communication ability that it has has satisfied the day by day automatic system demand of high speed development fully.
As the final controlling element of valve, the most basic requirement is that valve position and moment are detected accurately and control.In order to realize above-mentioned accurate control, the inventor designs a kind of electric valve control system, and this case produces thus.
Summary of the invention
The purpose of this invention is to provide a kind of electric valve control system, adopt singlechip technology and electric detection means, valve position and moment are detected accurately and control.
In order to achieve the above object, the present invention is achieved through the following technical solutions:
A kind of electric valve control system comprises motor, first stage decelerator, two stage reduction gear, triple reduction gear, valve, valve synchronous tracer, single-chip microcomputer, phase shortage detection unit; Motor output is successively by being connected on the valve on first stage decelerator, two stage reduction gear, the triple reduction gear, the valve synchronous tracer detects the aperture of valve, and this aperture signal is delivered in the single-chip microcomputer, single-chip microcomputer draws the required stepping pulse signal of motor by the phase shortage detection unit, and this signal is delivered in the motor adjusts.
Described motor directly drives worm and gear and rotates output, and through first stage decelerator, two stage reduction gear, triple reduction gear transmission, final resultant gear ratio reaches 1000.
Described worm gear transmission ratio is 25, and the first stage decelerator velocity ratio is 3, and the two stage reduction gear velocity ratio is 3.33, and the triple reduction gear velocity ratio is 4.
Described single-chip microcomputer adopts the P87LPC76x series monolithic.
Described single-chip microcomputer is connected with display unit.
Described single-chip microcomputer is connected with voice unit.
After adopting such scheme, the present invention has many beneficial effects:
The present invention combines machinery and electron controls technology, computer technology especially, and several component just can be realized and surpass original function so that valve actuator is concentrated on by original all multiple components, this technology is a technological innovation of valve industry.This achievement is indicating that some Electric actuators also will have a wide range of applications in other field.The present invention has advanced moment and detects, and can accurately carry out valve location control, adopts single-chip microcomputer, provides prerequisite for system forms network management.
Description of drawings
Fig. 1 is the high-level schematic functional block diagram of preferred embodiment of the present invention.
Embodiment
By reference to the accompanying drawings, preferred embodiment of the present invention is described in further details.
A kind of electric valve control system, the module that comprises in the present embodiment has motor 1, first stage decelerator 2, two stage reduction gear 3, triple reduction gear 4, valve 5, valve synchronous tracer 6, single-chip microcomputer 7, phase shortage detection unit 8, can also comprise display unit 9 and voice unit 10 simultaneously.
Motor 1 is power unit of the present invention, is stepper motor in the present embodiment, and whole system power is 100W, and output revolutions is 1r/min, and the rotating speed of default motor 1 is 1000r/min.Stepper motor is according to system condition, and P=100W obtains:
Select stepper motor according to torque, the parameter of stepper motor is as shown in table 1 below:
The transmission aspect mainly relies on motor 1, first stage decelerator 2, two stage reduction gear 3, triple reduction gear 4 four to cooperate and realizes total velocity ratio 1000 in the present embodiment, specifically directly driving worm and gear by stepper motor rotates, behind worm and gear, after first stage decelerator 2, two stage reduction gear 3, triple reduction gear 4 transmissions, export again.First stage decelerator 2 in the present embodiment, two stage reduction gear 3, triple reduction gear 4 are the straight-tooth transmission.
Because total velocity ratio:
Wherein, N: the rotating speed of stepper motor, n: the revolution of output shaft.
For improving the transmission efficiency of worm and gear, a number of getting worm screw is 2.Velocity ratio is allocated as follows:
The power of motor 1 finally is connected on the valve 5 through after the transmission, and valve synchronous tracer 6 connects valve 5, detect the aperture of valve 5, valve synchronous tracer 6 is existing parts in the industry technical field, for detection of the device of valve opening, does not do here and gives unnecessary details.
Valve synchronous tracer 6 is connected to the aperture signal that collects on the single-chip microcomputer 7, and what adopt in the present embodiment is the P87LPC767 series monolithic, wherein adopts P87LPC76x, has at a high speed and crystal oscillator and the RC oscillating of low speed selection able to programme.Has wider operating voltage range.Programmable I/O mouth line output mode is selected, and can select the schmidt trigger input, the LED driver output.Inner WatchDog Timer is arranged.Antijamming capability is strong.
Single-chip microcomputer 7 at first inside carries out the valve position setting in advance, the aperture signal of the valve 5 that obtains is calculated through internal processes, obtain output value and be input in the phase shortage detection unit 8, phase shortage detection unit 8 is according to the parameter value of output in the single-chip microcomputer 7, be adjusted umber of pulse, be input to the umber of pulse of adjusting stepping in the motor 1, thereby adjust the aperture of valve, so circulation is until the aperture of valve 5 reaches certain precision.
In order to enrich function of the present invention, on single-chip microcomputer 7, also be connected with display unit 9 and voice unit 10, can intuitively show the data of whole system, simultaneously can also point out and report to the police by sound.
Above-described embodiment only is used for explaining inventive concept of the present invention, but not to the restriction of rights protection of the present invention, allly utilizes this design that the present invention is carried out the change of unsubstantiality, all should fall into protection scope of the present invention.
Claims (6)
1. an electric valve control system is characterized in that: comprise motor, first stage decelerator, two stage reduction gear, triple reduction gear, valve, valve synchronous tracer, single-chip microcomputer, phase shortage detection unit; Motor output is successively by being connected on the valve on first stage decelerator, two stage reduction gear, the triple reduction gear, the valve synchronous tracer detects the aperture of valve, and this aperture signal is delivered in the single-chip microcomputer, single-chip microcomputer draws the required stepping pulse signal of motor by the phase shortage detection unit, and this signal is delivered in the motor adjusts.
2. a kind of electric valve control system as claimed in claim 1 is characterized in that: described motor directly drives worm and gear and rotates output, and through first stage decelerator, two stage reduction gear, triple reduction gear transmission, final resultant gear ratio reaches 1000.
3. a kind of electric valve control system as claimed in claim 2, it is characterized in that: described worm gear transmission ratio is 25, and the first stage decelerator velocity ratio is 3, and the two stage reduction gear velocity ratio is 3.33, and the triple reduction gear velocity ratio is 4.
4. a kind of electric valve control system as claimed in claim 1 is characterized in that: described single-chip microcomputer employing P87LPC76x series monolithic.
5. a kind of electric valve control system as claimed in claim 1, it is characterized in that: described single-chip microcomputer is connected with display unit.
6. a kind of electric valve control system as claimed in claim 1, it is characterized in that: described single-chip microcomputer is connected with voice unit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012103218860A CN102853146A (en) | 2012-09-04 | 2012-09-04 | Electric valve control system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012103218860A CN102853146A (en) | 2012-09-04 | 2012-09-04 | Electric valve control system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102853146A true CN102853146A (en) | 2013-01-02 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012103218860A Pending CN102853146A (en) | 2012-09-04 | 2012-09-04 | Electric valve control system |
Country Status (1)
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| CN (1) | CN102853146A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2100538U (en) * | 1991-02-12 | 1992-04-01 | 刘平 | Electric operating means for partial rotary valves |
| JP2001041338A (en) * | 1999-07-29 | 2001-02-13 | Nichiden Kogyo Kk | Valve opening and closing device |
| CN1570440A (en) * | 2004-05-12 | 2005-01-26 | 郭振兴 | Intelligent type valve electrical device |
| CN201739607U (en) * | 2010-01-04 | 2011-02-09 | 攀钢集团冶金工程技术有限公司 | Electric valve actuator |
| CN202746718U (en) * | 2012-09-04 | 2013-02-20 | 绍兴文理学院 | Electric valve control system |
-
2012
- 2012-09-04 CN CN2012103218860A patent/CN102853146A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2100538U (en) * | 1991-02-12 | 1992-04-01 | 刘平 | Electric operating means for partial rotary valves |
| JP2001041338A (en) * | 1999-07-29 | 2001-02-13 | Nichiden Kogyo Kk | Valve opening and closing device |
| CN1570440A (en) * | 2004-05-12 | 2005-01-26 | 郭振兴 | Intelligent type valve electrical device |
| CN201739607U (en) * | 2010-01-04 | 2011-02-09 | 攀钢集团冶金工程技术有限公司 | Electric valve actuator |
| CN202746718U (en) * | 2012-09-04 | 2013-02-20 | 绍兴文理学院 | Electric valve control system |
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Application publication date: 20130102 |