CN203670974U - Intelligent valve driver in air-conditioner control system - Google Patents
Intelligent valve driver in air-conditioner control system Download PDFInfo
- Publication number
- CN203670974U CN203670974U CN201320768204.0U CN201320768204U CN203670974U CN 203670974 U CN203670974 U CN 203670974U CN 201320768204 U CN201320768204 U CN 201320768204U CN 203670974 U CN203670974 U CN 203670974U
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- circuit
- potentiometer
- air
- control system
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- 239000003381 stabilizer Substances 0.000 claims description 3
- 238000000034 method Methods 0.000 abstract description 11
- 238000005070 sampling Methods 0.000 abstract description 2
- 230000000087 stabilizing effect Effects 0.000 abstract 1
- 230000003044 adaptive effect Effects 0.000 description 6
- 238000009434 installation Methods 0.000 description 2
- 244000227633 Ocotea pretiosa Species 0.000 description 1
- 235000004263 Ocotea pretiosa Nutrition 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000004907 flux Effects 0.000 description 1
- 238000012905 input function Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000004321 preservation Methods 0.000 description 1
- 230000003252 repetitive effect Effects 0.000 description 1
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- Electrically Driven Valve-Operating Means (AREA)
Abstract
The utility model relates to an intelligent valve driver in an air-conditioner control system. The intelligent valve driver in the air-conditioner control system consists of a single chip microcomputer, a control signal input circuit, a feedback signal output circuit, a position feedback circuit, a key and dial switch circuit, a power failure protection memorizer, a motor driving circuit and a potentiometer, wherein the control signal input circuit, the feedback signal output circuit and the position feedback circuit are respectively connected with the single chip microcomputer, the control signal input circuit is provided with a resistor R0 for sampling a current signal and a voltage stabilizing tube Z. The feedback signal output circuit and the position feedback circuit are connected with the potentiometer W1, and the potentiometer is meshed with a valve rod of a valve. The key and dial switch circuit is provided with a self-adaption key K and a dial switch S1 for setting signal modes and control modes, wherein the signal modes and the control modes include a 0-10V or 4-20mA signal mode, a linear or equal-proportion operation mode and a forward rotation or reverse rotation mode. The intelligent valve driver in the air-conditioner control system can set different signal modes and working modes, and a self-adaption method is adopted for valves different in stroke.
Description
Technical field
The utility model relates to a kind of driver of control valve.
Background technique
Air-conditioner control system is controlled the constant of on-the-spot temperature and humidity by the liquid in adjusting pipeline or the flow of steam, and adjust flux is realized by the aperture of the modulating valve in pilot line.Valve driver is so a kind of device: receive the control signal of controller output, carry out the aperture of control valve, and send position feedback information to controller according to the size of control signal.Of a great variety due to valve, control signal and control mode that system adopts are all not quite similar, and this just requires driver must possess multi-signal input function, and possesses multiple different mode of operation.Existing domestic driver adopts traditional analog circut mode mostly,
In Installation and Debugging process, need to regulate a large amount of potentiometers could meet usage requirement.This mode, not only requires Installation and Debugging personnel through special training, and due to the impact of personal factor, and the large and not tight phenomenon of valve closing of departure usually occurs.
Summary of the invention
The utility model aims to provide intelligent type valve driver in a kind of air-conditioner control system, and it can adopt adaptive approach to the valve of different strokes.
Intelligent type valve driver in air-conditioner control system described in the utility model, it is characterized in that by single-chip microcomputer, and the control signal input circlult being connected with single-chip microcomputer respectively, feedback signal output circuit, feedback circuit, button and toggle switch circuit, power-down protection storage, motor-drive circuit and potentiometer composition, wherein control signal input circlult is provided with resistance R 0 and voltage-stabiliser tube Z that current signal is sampled; Feedback signal output circuit is all connected with potentiometer W1 with feedback circuit, and potentiometer engages with the valve rod of valve; Button and toggle switch circuit are provided with self adaption button K and are used for the toggle switch S1 of signalization mode and control mode, aspect and control mode that it arranges comprise 0～10V or 4～20mA aspect, linearity or equal proportion operating mode, forward or reverse pattern.
Preferably, power-down protection storage is 24C01 chip.
The utility model has solved the problem existing in conventional analog circuits control system, sets different aspects and mode of operation with toggle switch, and the valve of different strokes is adopted to adaptive method, and easy to use, reliability is high.
Accompanying drawing explanation
Fig. 1 is the circuit diagram of intelligent type valve driver in air-conditioner control system described in the utility model.
Embodiment
As shown in the figure; intelligent type valve driver in air-conditioner control system of the present utility model; by single-chip microcomputer; and the control signal input circlult being connected with single-chip microcomputer respectively, feedback signal output circuit, feedback circuit; button and toggle switch circuit; power-down protection storage, motor-drive circuit and potentiometer composition.
On control signal input circlult, input control signal has 0-10V and two kinds of modes of 4-20mA, and this signal follower circuit enters the A/D converter ADC0 of single-chip microcomputer.Disturb for fear of signal, adopted RC rc filter circuit in the ingress of signal.In figure, resistance R 0 is used for realizing the sampling to current signal, and Z is-12V voltage-stabiliser tube to be used for carrying out overvoltage protection.
Button and toggle switch circuit are provided with self adaption button K and toggle switch S1, and toggle switch S1 is used for signalization mode and control mode, comprises 0～10V or 4～20mA aspect, linearity or equal proportion operating mode, forward or reverse pattern.Self adaption button K is a self adaption button, exceedes after 2s when it is pressed, and driver starts adaptive process.Power-down protection storage is 24C01 chip.Adaptive process is preserved with 24C01.24C01 is the preservation 12C interface serial EEPROM chip of a 1K byte, can repeat sassafras and write 100 ten thousand times, 100 years.
Feedback signal output circuit is all connected with potentiometer W1 with feedback circuit, potentiometer W1 is used for detecting valve running position, the valve rod of it and valve engages by gear rack, in the time that valve rod moves up and down, the value of potentiometer W1 changes, and reads by the A/D converter ADCl of single-chip microcomputer.
For dissimilar valve, its maximum difference is the stroke difference of valve rod, and adaptation function is exactly to allow driver automatically identify the stroke size of valve rod.Valve rod is in the time running to two limit positions at stroke two ends, due to the spacing work of mechanical structure
With, stop motion just can be obtained the run-length data of this valve by software algorithm according to this feature by it, realizes adaptive
Function.After adaptive process starts, driver control valve rod is upwards operation first, and in stem movement process, single-chip microcomputer ceaselessly detects the voltage change of potentiometer W1.In the time that valve rod runs to position, the top, the magnitude of voltage of potentiometer W1 no longer changes, record A/D value V1 now; Then the driver control valve rod a bit of distance of operation downwards, repeats process just now, again obtains an A/D value V2, after continuous such repetitive process several times, gets the mean value of these A/D values as stroke initial data RUNmin.Driver control valve rod moves downwards, obtains another one stroke end data RUNmaX with same method.Finally these two data are saved in 24C01 chip.
Claims (2)
1. intelligent type valve driver in air-conditioner control system, it is characterized in that by single-chip microcomputer, and the control signal input circlult being connected with single-chip microcomputer respectively, feedback signal output circuit, feedback circuit, button and toggle switch circuit, power-down protection storage, motor-drive circuit and potentiometer composition, wherein control signal input circlult is provided with resistance R 0 and voltage-stabiliser tube Z that current signal is sampled; Feedback signal output circuit is all connected with potentiometer W1 with feedback circuit, and potentiometer engages with the valve rod of valve; Button and toggle switch circuit are provided with self adaption button K and are used for the toggle switch S1 of signalization mode and control mode, aspect and control mode that it arranges comprise 0～10V or 4～20mA aspect, linearity or equal proportion operating mode, forward or reverse pattern.
2. intelligent type valve driver in air-conditioner control system as claimed in claim 1, is characterized in that power-down protection storage is 24C01 chip.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320768204.0U CN203670974U (en) | 2013-11-29 | 2013-11-29 | Intelligent valve driver in air-conditioner control system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320768204.0U CN203670974U (en) | 2013-11-29 | 2013-11-29 | Intelligent valve driver in air-conditioner control system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203670974U true CN203670974U (en) | 2014-06-25 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320768204.0U Expired - Lifetime CN203670974U (en) | 2013-11-29 | 2013-11-29 | Intelligent valve driver in air-conditioner control system |
Country Status (1)
| Country | Link |
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| CN (1) | CN203670974U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109268560A (en) * | 2018-11-28 | 2019-01-25 | 航天科工哈尔滨风华有限公司电站设备分公司 | A kind of compensating of load intelligent electric executive device and its control method |
-
2013
- 2013-11-29 CN CN201320768204.0U patent/CN203670974U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109268560A (en) * | 2018-11-28 | 2019-01-25 | 航天科工哈尔滨风华有限公司电站设备分公司 | A kind of compensating of load intelligent electric executive device and its control method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: Intelligent valve driver in air-conditioner control system Effective date of registration: 20180131 Granted publication date: 20140625 Pledgee: Xi'an innovation financing Company limited by guarantee Pledgor: XI'AN CANGLONG INDUSTRIAL CO.,LTD. Registration number: 2018990000095 |
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| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| CP03 | Change of name, title or address |
Address after: 710000 F Floor, Block C, 38 Jinye Road, Xi'an High-tech Zone, Shaanxi Province Patentee after: Canglong Group Co.,Ltd. Address before: 710065 No. 66 Science and Technology Second Road, Xi'an High-tech Development Zone, Shaanxi Province Patentee before: XI'AN CANGLONG INDUSTRIAL CO.,LTD. |
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| CP03 | Change of name, title or address | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20200102 Granted publication date: 20140625 Pledgee: Xi'an innovation financing Company limited by guarantee Pledgor: XI'AN CANGLONG INDUSTRIAL CO.,LTD. Registration number: 2018990000095 |
|
| PC01 | Cancellation of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: Intelligent valve driver in air-conditioner control system Effective date of registration: 20200102 Granted publication date: 20140625 Pledgee: Xi'an innovation financing Company limited by guarantee Pledgor: Canglong Group Co.,Ltd. Registration number: Y2019990000837 |
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| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140625 |
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| CX01 | Expiry of patent term |