CN201886370U - Intelligent gas flow rate and pressure controller - Google Patents
Intelligent gas flow rate and pressure controller Download PDFInfo
- Publication number
- CN201886370U CN201886370U CN2010206621224U CN201020662122U CN201886370U CN 201886370 U CN201886370 U CN 201886370U CN 2010206621224 U CN2010206621224 U CN 2010206621224U CN 201020662122 U CN201020662122 U CN 201020662122U CN 201886370 U CN201886370 U CN 201886370U
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- pressure
- sensor
- flow
- flow rate
- control system
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- Electrically Driven Valve-Operating Means (AREA)
Abstract
The utility model relates to an intelligent gas flow rate and pressure controller which consists of a pressure sensor, a flow sensor, a stepping motor, a pressure stabilization valve body and a closed-loop control system, wherein the closed-loop control system is respectively connected with the stepping motor, the pressure sensor and the flow sensor by a lead harness; the flow sensor, the pressure stabilization valve body and the pressure sensor are sequentially connected onto a gas circuit pipeline; and the stepping motor is connected onto a sliding block of a pressure stabilization valve by a shaft. As the electric pressure stabilization valve, the pressure sensor and a flow meter are matched with each other, the digital pressure control and the digital flow rate control can be realized, the effects of constant pressure output and constant flow rate can be achieved, the problem of complicated operation caused by manual adjustment is solved, and the work efficiency and the work quality can be improved; and the device can be realized by simply reforming the common pressure stabilization valve, thus being great in popularization value.
Description
Technical field
The utility model relates to a kind of intelligent gas-flow rate and pressure controller, is mainly used in the accurate control automatically of gas flow in the various air-channel systems or gaseous tension.
Background technology
In various air-channel systems such as gas chromatographic device gas circuit system, mechanical compression table and flow sensor are often used in the measurement of gaseous tension and flow, when needs adjustments of gas pressure or flow, method commonly used has following 2 kinds: the one, and valve members such as pressure maintaining valve in the employing manual shift air-channel system or flow stabilizing valve reach flow and the pressure that needs, and this method complicated operation and degree of regulation are relatively poor; The 2nd, by automatically regulating the method for solenoid valve behind the measurement gas flow, this method complex structure, involve great expense, control accuracy is relatively poor.
Summary of the invention
The technical problems to be solved in the utility model is: design a kind of intelligent gas-flow rate and pressure controller, and can be according to set pressure or automatic minute adjustment gaseous tension of flow and flow.
The technical scheme that solution the utility model problem is adopted is: this device is made up of pressure transducer, flow sensor, stepper motor, voltage stabilizing valve body and closed-loop control system, and closed-loop control system connects stepper motor, pressure transducer, flow sensor respectively through wire harness; Flow sensor, voltage stabilizing valve body, pressure transducer are connected in turn on the gas path pipe; Step motor shaft is connected on the pressure maintaining valve slide block.
Simultaneously for the security of assurance work, radially be provided with a slider waveguide rod on the pressure maintaining valve slide block, on voltage stabilizing valve body next door a photoelectrical position sensor is installed, slider waveguide rod is located between two spacing points of photoelectrical position sensor, and photoelectrical position sensor connects closed-loop control system through wire harness.
Closed-loop control system is a custom circuit, and the colleague technician all can design voluntarily, is not described further at this.
Good effect of the present utility model is: this device cooperates with pressure transducer and flowmeter by electronic pressure maintaining valve, can realize pressure on the number control and traffic figure control, reach the effect of output constant voltage and flow constant current, solve the Operating Complexity that manual shift causes, improved efficiency and work quality; Can realize this device by common pressure maintaining valve is simply transformed, have very big promotional value.
Description of drawings
Accompanying drawing is the structural principle synoptic diagram of the utility model embodiment.
Embodiment
As shown in drawings, this device is made up of pressure transducer 8, flow sensor 10, stepper motor 4, voltage stabilizing valve body 9 and closed-loop control system 1, and closed-loop control system 1 connects stepper motor 4, pressure transducer 8, flow sensor 10 respectively through wire harness 2; Flow sensor 10, voltage stabilizing valve body 9, pressure transducer 8 are connected in turn on the gas path pipe 11; Step motor shaft 6 is connected on the pressure maintaining valve slide block 7.Simultaneously for the security of assurance work, radially be provided with a slider waveguide rod 5 on the pressure maintaining valve slide block 7, a photoelectrical position sensor 3 is installed on voltage stabilizing valve body 9 next doors, slider waveguide rod 5 is located between two spacing points of photoelectrical position sensor 3, and photoelectrical position sensor 3 connects closed-loop control system 1 through wire harness 2.
This device directly is connected in the air-channel system, after gas is entered by the import of flow sensor 10, flow out by voltage stabilizing valve body 9 and gas circuit pipe 11 backs that pressure transducer 8 is installed successively, closed-loop control system 1 is according to pressure transducer 8 detected pressure maintaining valve output pressures, or compare with pressure or the flow that the user sets respectively by flow sensor 10 detected flows, send conditioning signal for then stepper motor 4, step motor shaft 6 drives pressure maintaining valve slide block 7 and moves radially the size of regulating pressure maintaining valve inner outlet flow velocity.For preventing the stepper motor safety problem that causes out of control; on device, 2 photoelectrical position sensors 3 are installed; when pressure maintaining valve guide rod 5 radially moves photoelectrical position sensor 3 with pressure maintaining valve slide block 7, force stepper motor to quit work, reach the purpose of protective device with this.The control signal that stepper motor provides according to closed-loop control system by moving axially with the inner slide block that links to each other of pressure maintaining valve, reaches the purpose of control pressure maintaining valve output pressure and delivery rate size.
Claims (2)
1. intelligent gas-flow rate and pressure controller, it is characterized in that: it is made up of pressure transducer, flow sensor, stepper motor, voltage stabilizing valve body and closed-loop control system, and closed-loop control system connects stepper motor, pressure transducer, flow sensor respectively through wire harness; Flow sensor, voltage stabilizing valve body, pressure transducer are connected in turn on the gas path pipe; Step motor shaft is connected on the pressure maintaining valve slide block.
2. intelligent gas-flow rate according to claim 1 and pressure controller, it is characterized in that: radially be provided with a slider waveguide rod on the pressure maintaining valve slide block, on voltage stabilizing valve body next door a photoelectrical position sensor is installed, slider waveguide rod is located between two spacing points of photoelectrical position sensor, and photoelectrical position sensor connects closed-loop control system through wire harness.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206621224U CN201886370U (en) | 2010-12-16 | 2010-12-16 | Intelligent gas flow rate and pressure controller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206621224U CN201886370U (en) | 2010-12-16 | 2010-12-16 | Intelligent gas flow rate and pressure controller |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201886370U true CN201886370U (en) | 2011-06-29 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010206621224U Expired - Fee Related CN201886370U (en) | 2010-12-16 | 2010-12-16 | Intelligent gas flow rate and pressure controller |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201886370U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102817695A (en) * | 2011-11-30 | 2012-12-12 | 凯迈(洛阳)机电有限公司 | Constant temperature, constant pressure and constant flow device of cooling liquid |
| CN103092222A (en) * | 2012-12-31 | 2013-05-08 | 孙晓君 | Pressure precise adjustment device |
| WO2014106437A1 (en) * | 2013-01-04 | 2014-07-10 | 北京银谷科讯信息技术有限公司 | Pressure adjusting device |
| CN105373175A (en) * | 2015-12-14 | 2016-03-02 | 天津市天环精细化工研究所 | Air flow monitoring and regulation and control device |
| CN107515630A (en) * | 2017-09-29 | 2017-12-26 | 济南思克测试技术有限公司 | The constant-voltage equipment and air permeability instrument of a kind of air permeability instrument |
| CN112505212A (en) * | 2020-12-11 | 2021-03-16 | 江苏汇环环保科技有限公司 | Pressure control device suitable for online gas chromatograph |
-
2010
- 2010-12-16 CN CN2010206621224U patent/CN201886370U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102817695A (en) * | 2011-11-30 | 2012-12-12 | 凯迈(洛阳)机电有限公司 | Constant temperature, constant pressure and constant flow device of cooling liquid |
| CN103092222A (en) * | 2012-12-31 | 2013-05-08 | 孙晓君 | Pressure precise adjustment device |
| WO2014101728A1 (en) * | 2012-12-31 | 2014-07-03 | Sun Xiaojun | Device for precisely adjusting pressure |
| WO2014106437A1 (en) * | 2013-01-04 | 2014-07-10 | 北京银谷科讯信息技术有限公司 | Pressure adjusting device |
| CN105373175A (en) * | 2015-12-14 | 2016-03-02 | 天津市天环精细化工研究所 | Air flow monitoring and regulation and control device |
| CN107515630A (en) * | 2017-09-29 | 2017-12-26 | 济南思克测试技术有限公司 | The constant-voltage equipment and air permeability instrument of a kind of air permeability instrument |
| CN112505212A (en) * | 2020-12-11 | 2021-03-16 | 江苏汇环环保科技有限公司 | Pressure control device suitable for online gas chromatograph |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: HE'NAN ZHONGFEN INSTRUMENT CO., LTD. Free format text: FORMER NAME: HENNAN ZHONGFEN APPARATUS CO., LTD. |
|
| CP01 | Change in the name or title of a patent holder |
Address after: 476000 No. 66 Tengfei Road, Shangqiu Development Zone, Henan, China Patentee after: Henan Zhongfen Instrument Co., Ltd. Address before: 476000 No. 66 Tengfei Road, Shangqiu Development Zone, Henan, China Patentee before: Hennan Zhongfen apparatus Co., Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110629 Termination date: 20171216 |