CN102360229A - Intelligent compressed air flow control device - Google Patents
Intelligent compressed air flow control device Download PDFInfo
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- CN102360229A CN102360229A CN2011103466917A CN201110346691A CN102360229A CN 102360229 A CN102360229 A CN 102360229A CN 2011103466917 A CN2011103466917 A CN 2011103466917A CN 201110346691 A CN201110346691 A CN 201110346691A CN 102360229 A CN102360229 A CN 102360229A
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Abstract
The invention relates to the field of energy conservation and emission reduction of an air supply system, in particular to an intelligent compressed air flow control device. The device comprises an intelligent control instrument, an upstream pressure sensor, a downstream pressure sensor, a valve positioner, a pneumatic operation mechanism and a linear pneumatic regulating valve, wherein the intelligent control instrument receives signals from the upstream pressure sensor and the downstream pressure sensor, takes an upstream pressure signal as a pressure display and fault judgment basis, compares a downstream pressure signal with a given target pressure signal, and outputs an appropriate pressure signal according to a comparison result to control the valve positioner, and the pneumatic operation mechanism further controls the opening of the linear pneumatic regulating valve until given pressure is equal to downstream pressure, wherein the given target pressure is set on site. The device is used for realizing intelligent air supply flow control and fault judgment and alarm, and has a good energy-saving effect.
Description
Technical field
The present invention relates to the energy-saving and emission-reduction field of air supply system, particularly a kind of Intelligent Compression air-flow control device.
Background technology
The pressurized air expert proposes both at home and abroad; Should its supply gas pressure that needs be provided to gas equipment, any supply gas pressure that is higher than the equipment needs all can cause the waste of tolerance; They are defined as false gas consumption to the tolerance waste that the pressure differential that is higher than the actual pressure needs causes.
Show that according to investigation the supply gas pressure of most compressed air systems all is higher than the demand pressure of equipment; And certain gap is arranged, power department has all stayed certain surplus in order to ensure the normal operation of gas equipment on supply gas pressure; Simultaneously, along with the variation of gas consumption, system's supply gas pressure also can change; Also must be with improving supply gas pressure, supply gas pressure is low excessively when preventing big flow, influences the use of gas equipment.Through system diagnostics, the working pressure flow controller cooperates gas-holder, can (supply gas pressure+0.01MPa), the pressure of just right gas equipment needs be to the user side air feed, and needn't at any time worry that in any case supply gas pressure is not enough with stable.Thereby solved under the prerequisite of guaranteeing the gas equipment pressure demand, reduced system's supply gas pressure, reduced the waste of false gas consumption to greatest extent, reached purpose of energy saving.
Summary of the invention
The object of the present invention is to provide a kind of Intelligent Compression air-flow control device, be used to realize intelligentized gas supply flow control and fault judgement warning, realize energy-saving effect preferably.
For realizing above-mentioned purpose, the present invention realizes like this.
A kind of Intelligent Compression air-flow control device is characterized in that: it comprises intelligent controller, upstream pressure sensor, downstream pressure sensor, valve positioner, pneumatic operator and linear pneumatic control valve; Described intelligent controller receives upstream pressure sensor and downstream pressure sensor signal respectively; And with upstream pressure signal as pressure display and fault judgement according to, downstream pressure signal and given goal pressure signal are made comparisons; According to the suitable pressure signal by-pass valve control steady arm of comparative result output; And further control the aperture of linear pneumatic control valve through pneumatic operator; Equate with given goal pressure that until downstream pressure described given goal pressure is through on-the-spot setting (be arranged in the intelligent controller and realize).
Described Intelligent Compression air-flow control device is characterized in that: described device also has control electromagnetic valve, angle stroke operating mechanism and pneumatic by-pass valve; If the mean value of a downstream pressure signal period is lower than given goal pressure; Then provide signal and open by-pass valve through control electromagnetic valve and the further control of angle stroke operating mechanism by intelligent controller; The linear regulation valve position is constant, and this state keeps the interval time of setting; Recover normal operating conditions after interval time; If after set point number recovered, the mean value of a downstream pressure signal period still was lower than given goal pressure, then no longer recover; Above-mentioned given goal pressure and with set point number all through on-the-spot setting.
Described Intelligent Compression air-flow control device is characterized in that: if intelligent controller detects linear pneumatic control valve fault is arranged, then close linear pneumatic control valve and pneumatic by-pass valve is opened; Described linear pneumatic control valve has fault to be meant that linear pneumatic control valve opens behind the setting-up time downstream pressure near the goal pressure of setting; Above-mentioned setting-up time and goal pressure all are provided with through on-the-spot.
Described Intelligent Compression air-flow control device is characterized in that: downstream pressure then carries out the not enough warning of air demand not near the goal pressure of setting behind linear pneumatic control valve and pneumatic by-pass valve standard-sized sheet setting-up time if intelligent controller detects; Described setting-up time and goal pressure all are provided with through on-the-spot.
The present invention compares with existing mechanism, has following advantage.
1, Intelligent Compression air-flow control device of the present invention, it contains intelligent flow controller and control device, and intelligent controller has the given signal of output; The control pneumatic control valve is exported to the level pressure function of air pressure that contracts, and has on-the-spot adjustment pid parameter, low-voltage variation; The main valve emergency protection; Air demand is not enough reports to the police loss protecting, intelligent functions such as self-starting behind the loss protecting (optional) fault self-diagnosis.
2, Intelligent Compression air-flow control device of the present invention can be furnished with the maintenance valve, the maintenance of when system is in malfunction fully, can not stopping the supple of gas or steam.
3, Intelligent Compression air-flow control device of the present invention has self-diagnostic function, can on the screen of intelligent controller, intuitively show state, aperture and the inlet and outlet pressure of each valve.And have an automatic processing capacity of fault, incorrect when valve location, or when breaking down, system can be advanced into guard mode certainly.When any fault occurring, guarantee the normal air feed of compressed air system.
Description of drawings
Fig. 1 is the structural representation of apparatus of the present invention one preferred embodiment.
Among the figure: V1: linear pneumatic control valve (can select LE33 for use, this handkerchief picogram);
E1: pneumatic operator (can select PN3640 for use, this handkerchief picogram);
P01: valve positioner (can select EP5 for use, this handkerchief picogram);
V2: pneumatic by-pass valve (can select HVO for use) comprises E2: angle stroke operating mechanism;
V3, V4, V5 (can select D341X for use): service valve;
V6, V7: blowoff valve;
PS1, PS2: pressure transducer;
C0: intelligent controller (can select Mitsubishi's industrial computer for use);
EMV: control electromagnetic valve.
Embodiment
See also Fig. 1, the invention discloses a kind of Intelligent Compression air-flow control device.As shown in the figure: it comprises intelligent controller C0, upstream pressure sensor PS1, downstream pressure sensor PS2, valve positioner P01, pneumatic operator E1 and linear pneumatic control valve V1; Described intelligent controller receives upstream pressure sensor and downstream pressure sensor signal respectively; And with upstream pressure signal as pressure display and fault judgement according to, downstream pressure signal and given goal pressure signal are made comparisons; According to the suitable pressure signal by-pass valve control steady arm of comparative result output; And further control the aperture of linear pneumatic control valve through pneumatic operator; Equate with given goal pressure that until downstream pressure described given goal pressure is through on-the-spot setting (be arranged in the intelligent controller and realize).
Can realize fundamental purpose of the present invention through above-mentioned parts and structure, compressed air require is carried out Based Intelligent Control.
Below can further increase system unit with further increase systemic-function.
Described device also has control electromagnetic valve EMV, angle stroke operating mechanism E2 and pneumatic by-pass valve V2; If the mean value of a downstream pressure signal period is lower than given goal pressure; Then provide signal and open by-pass valve through control electromagnetic valve and the further control of angle stroke operating mechanism by intelligent controller; The linear regulation valve position is constant, and this state keeps the interval time of setting; Recover normal operating conditions after interval time; If after set point number recovered, the mean value of a downstream pressure signal period still was lower than setting pressure, then no longer recover; Above-mentioned given goal pressure and set point number all are provided with through on-the-spot.
If intelligent controller detects linear pneumatic control valve fault is arranged, then close linear pneumatic control valve and pneumatic by-pass valve is opened; Described linear pneumatic control valve has fault to be meant that linear pneumatic control valve opens behind the setting-up time downstream pressure near the goal pressure of setting; Above-mentioned setting-up time and goal pressure all are provided with through on-the-spot.
Downstream pressure then carries out the not enough warning of air demand not near the goal pressure of setting behind linear pneumatic control valve and pneumatic by-pass valve standard-sized sheet setting-up time if intelligent controller detects; Described setting-up time and goal pressure all are provided with through on-the-spot.
In addition, the present invention also can be furnished with maintenance valve V3-V5, the maintenance of when system is in malfunction fully, can not stopping the supple of gas or steam.The present invention can also be furnished with blowoff valve V6, and V7 is used for the compressed air system sewage emissions of condensing.
Being merely preferred embodiment of the present invention in sum, is not to be used for limiting practical range of the present invention.Be that all equivalences of doing according to the content of claim of the present invention change and modification, all should be technological category of the present invention.
Claims (4)
1. Intelligent Compression air-flow control device, it is characterized in that: it comprises intelligent controller, upstream pressure sensor, downstream pressure sensor, valve positioner, pneumatic operator and linear pneumatic control valve; Described intelligent controller receives upstream pressure sensor and downstream pressure sensor signal respectively; And with upstream pressure signal as pressure display and fault judgement according to, downstream pressure signal and given goal pressure signal are made comparisons; According to the suitable pressure signal by-pass valve control steady arm of comparative result output; And further control the aperture of linear pneumatic control valve through pneumatic operator, equate with given goal pressure that until downstream pressure described given goal pressure is provided with through on-the-spot.
2. Intelligent Compression air-flow control device according to claim 1 is characterized in that: described device also has control electromagnetic valve, angle stroke operating mechanism and pneumatic by-pass valve; If the mean value of a downstream pressure signal period is lower than setting pressure; Then provide signal and open by-pass valve through control electromagnetic valve and the further control of angle stroke operating mechanism by intelligent controller; The linear regulation valve position is constant, and this state keeps the interval time of setting; Recover normal operating conditions after interval time; If after set point number recovered, the mean value of a downstream pressure signal period still was lower than given goal pressure, then no longer recover; Above-mentioned given goal pressure and set point number all are provided with through on-the-spot.
3. Intelligent Compression air-flow control device according to claim 2 is characterized in that: if intelligent controller detects linear pneumatic control valve fault is arranged, then close linear pneumatic control valve and pneumatic by-pass valve is opened; Downstream pressure was not near the goal pressure of setting after described linear pneumatic control valve had fault to be meant linear pneumatic control valve operation setting-up time; Above-mentioned setting-up time and goal pressure all are provided with through on-the-spot.
4. according to claim 2 or 3 described Intelligent Compression air-flow control devices; It is characterized in that: downstream pressure then carries out the not enough warning of air demand not near the goal pressure of setting behind linear pneumatic control valve and pneumatic by-pass valve standard-sized sheet setting-up time if intelligent controller detects; Described setting-up time and goal pressure all are provided with through on-the-spot.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110346691 CN102360229B (en) | 2011-11-07 | 2011-11-07 | Intelligent compressed air flow control device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110346691 CN102360229B (en) | 2011-11-07 | 2011-11-07 | Intelligent compressed air flow control device |
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| Publication Number | Publication Date |
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| CN102360229A true CN102360229A (en) | 2012-02-22 |
| CN102360229B CN102360229B (en) | 2013-03-27 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 201110346691 Expired - Fee Related CN102360229B (en) | 2011-11-07 | 2011-11-07 | Intelligent compressed air flow control device |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103274223A (en) * | 2013-06-21 | 2013-09-04 | 北京爱社时代科技发展有限公司 | Special air saving unit for pneumatic conveying and control system of special air saving unit |
| CN108121311A (en) * | 2016-11-30 | 2018-06-05 | 丰田自动车株式会社 | The computational methods of compressed air require, its computing device and storage medium |
| CN109843495A (en) * | 2016-08-16 | 2019-06-04 | 自动化及焊接机股份有限公司 | The electronic regulating system for shield gas flow rate applied to welder |
| CN111022735A (en) * | 2019-12-18 | 2020-04-17 | 中国空气动力研究与发展中心低速空气动力研究所 | TPS is experimental with quick voltage regulator device of large-traffic gas |
Citations (4)
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| US20010025566A1 (en) * | 1999-05-28 | 2001-10-04 | Elberson Michael D. | Compressed air flow rate controller for (paint sprayer system) air tools |
| US6874404B1 (en) * | 1999-05-28 | 2005-04-05 | Autoquip, Inc. | Compressed air flow rate controller |
| CN101551674A (en) * | 2009-05-13 | 2009-10-07 | 大连橡胶塑料机械股份有限公司 | Flow control system for temperature-control steam inlet and control method thereof |
| JP2010000617A (en) * | 2008-06-18 | 2010-01-07 | Hamamatsu Photonics Kk | Resin welding method |
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2011
- 2011-11-07 CN CN 201110346691 patent/CN102360229B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20010025566A1 (en) * | 1999-05-28 | 2001-10-04 | Elberson Michael D. | Compressed air flow rate controller for (paint sprayer system) air tools |
| US6874404B1 (en) * | 1999-05-28 | 2005-04-05 | Autoquip, Inc. | Compressed air flow rate controller |
| JP2010000617A (en) * | 2008-06-18 | 2010-01-07 | Hamamatsu Photonics Kk | Resin welding method |
| CN101551674A (en) * | 2009-05-13 | 2009-10-07 | 大连橡胶塑料机械股份有限公司 | Flow control system for temperature-control steam inlet and control method thereof |
Non-Patent Citations (1)
| Title |
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| 秦宏波等: "基于压力控制的工业压缩空气供需平衡控制系统的设计及应用研究", 《中国机械工程》 * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103274223A (en) * | 2013-06-21 | 2013-09-04 | 北京爱社时代科技发展有限公司 | Special air saving unit for pneumatic conveying and control system of special air saving unit |
| CN109843495A (en) * | 2016-08-16 | 2019-06-04 | 自动化及焊接机股份有限公司 | The electronic regulating system for shield gas flow rate applied to welder |
| CN108121311A (en) * | 2016-11-30 | 2018-06-05 | 丰田自动车株式会社 | The computational methods of compressed air require, its computing device and storage medium |
| CN111022735A (en) * | 2019-12-18 | 2020-04-17 | 中国空气动力研究与发展中心低速空气动力研究所 | TPS is experimental with quick voltage regulator device of large-traffic gas |
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| Publication number | Publication date |
|---|---|
| CN102360229B (en) | 2013-03-27 |
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