CN102360229B - Intelligent compressed air flow control device - Google Patents
Intelligent compressed air flow control device Download PDFInfo
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- CN102360229B CN102360229B CN 201110346691 CN201110346691A CN102360229B CN 102360229 B CN102360229 B CN 102360229B CN 201110346691 CN201110346691 CN 201110346691 CN 201110346691 A CN201110346691 A CN 201110346691A CN 102360229 B CN102360229 B CN 102360229B
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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 compressed air flow control device.
Background technology
The pressurized air expert proposes both at home and abroad, should provide its supply gas pressure that needs 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 according to investigation, the supply gas pressure of overwhelming majority compressed air system all is higher than the demand pressure of equipment, and certain gap is arranged, power department is in order to ensure the normal operation of gas equipment, all stayed certain surplus at 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 excessively low when preventing large flow, affects 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 inadequate with stable.Thereby solved under the prerequisite of guaranteeing the gas equipment pressure demand, reduced system's supply gas pressure, reduced to greatest extent the waste of false gas consumption, reached energy-conservation purpose.
Summary of the invention
The object of the present invention is to provide a kind of Intelligent compressed air flow control device, be used for realizing intelligentized gas supply flow control and fault judgement warning, realize preferably energy-saving effect.
For achieving the above object, the present invention realizes like this.
A kind of Intelligent compressed 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 respectively upstream pressure sensor and downstream pressure sensor signal, and upstream pressure signal shown as pressure and the fault basis for estimation, 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 by pneumatic operator, until downstream pressure equates with given goal pressure, described given goal pressure arranges (be arranged in the intelligent controller and realize) by on-the-spot.
Described Intelligent compressed air flow control device is characterized in that: described device also has control solenoid 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 by intelligent controller and open by-pass valve by control solenoid valve and the further control of angle stroke operating mechanism, the Linear regulating valve invariant position, 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 and set point number all by on-the-spot setting.
Described Intelligent compressed 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 refer to that linear pneumatic control valve opens that downstream pressure approaches the goal pressure of setting behind the setting-up time; Above-mentioned setting-up time and goal pressure all arrange by on-the-spot.
Described Intelligent compressed air flow control device is characterized in that: downstream pressure approaches 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, and then carries out the not enough warning of air demand; Described setting-up time and goal pressure all arrange by on-the-spot.
The present invention compares with existing mechanism, has advantages of following.
1, Intelligent compressed air flow control device of the present invention; it contains intelligent flow controller and control device; intelligent controller has the given signal of output; the control pneumatic control valve is exported to the function of level pressure contracting air pressure, and has on-the-spot pid parameter, the low-voltage variation adjusted; the main valve emergency protection; air demand is not enough reports to the police loss protecting, the intelligent functions such as self-starting behind the loss protecting (optional) fault self-diagnosis.
2, Intelligent compressed air flow control device of the present invention can be furnished with the maintenance valve, the maintenance of can not stopping the supple of gas or steam when system is in malfunction fully.
3, Intelligent compressed air flow control device of the present invention has self-diagnostic function, can intuitively show state, aperture and the inlet and outlet pressure of each valve on the screen of intelligent controller.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, this handkerchief picogram);
E1: pneumatic operator (can select PN3640, this handkerchief picogram);
P01: valve positioner (can select EP5, this handkerchief picogram);
V2: pneumatic by-pass valve (can select HVO) comprises E2: angle stroke operating mechanism;
V3, V4, V5(can select D341X): service valve;
V6, V7: blowoff valve;
PS1, PS2: pressure transducer;
C0: intelligent controller (can select Mitsubishi's industrial computer);
EMV: control solenoid valve.
Embodiment
See also Fig. 1, the invention discloses a kind of Intelligent compressed 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 respectively upstream pressure sensor and downstream pressure sensor signal, and upstream pressure signal shown as pressure and the fault basis for estimation, 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 by pneumatic operator, until downstream pressure equates with given goal pressure, described given goal pressure arranges (be arranged in the intelligent controller and realize) by on-the-spot.
Can realize fundamental purpose of the present invention by 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 solenoid 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 by intelligent controller and open by-pass valve by control solenoid valve and the further control of angle stroke operating mechanism, the Linear regulating valve invariant position, 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 arrange by 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 refer to that linear pneumatic control valve opens that downstream pressure approaches the goal pressure of setting behind the setting-up time; Above-mentioned setting-up time and goal pressure all arrange by on-the-spot.
Downstream pressure approaches 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, and then carries out the not enough warning of air demand; Described setting-up time and goal pressure all arrange by on-the-spot.
In addition, the present invention also can be furnished with maintenance valve V3-V5, the maintenance of can not stopping the supple of gas or steam when system is in malfunction fully.The present invention can also be furnished with blowoff valve V6, and V7 is used for the discharging that compressed air system is condensed sewage.
Being preferred embodiment of the present invention only in sum, is not to limit practical range of the present invention.Be that all equivalences of doing according to the content of the present patent application claim change and modification, all should be technology category of the present invention.
Claims (3)
1. Intelligent compressed 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 respectively upstream pressure sensor and downstream pressure sensor signal, and upstream pressure signal shown as pressure and the fault basis for estimation, 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 by pneumatic operator, until downstream pressure equates with given goal pressure, described given goal pressure arranges by on-the-spot; Described device also has control solenoid 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 by intelligent controller and open by-pass valve by control solenoid valve and the further control of angle stroke operating mechanism, the Linear regulating valve invariant position, 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 arrange by on-the-spot.
2. Intelligent compressed air flow control device according to claim 1 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 did not approach the goal pressure of setting after described linear pneumatic control valve had fault to refer to linear pneumatic control valve operation setting-up time; Above-mentioned setting-up time and goal pressure all arrange by on-the-spot.
3. Intelligent compressed air flow control device according to claim 1 and 2, it is characterized in that: downstream pressure approaches 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, and then carries out the not enough warning of air demand; Described setting-up time and goal pressure all arrange by 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 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102360229A CN102360229A (en) | 2012-02-22 |
| CN102360229B true 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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Families Citing this family (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 |
| BR202016018807U2 (en) * | 2016-08-16 | 2018-03-06 | Powermig Automação E Soldagem Ltda | ELECTRONIC PROTECTION GAS FLOW REGULATOR SYSTEM APPLIED TO WELDING EQUIPMENT |
| JP2018092248A (en) * | 2016-11-30 | 2018-06-14 | トヨタ自動車株式会社 | Method of calculating compressed air flow rate, and apparatus and program thereof |
| 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 |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6874404B1 (en) * | 1999-05-28 | 2005-04-05 | Autoquip, Inc. | Compressed air flow rate controller |
| US6223645B1 (en) * | 1999-05-28 | 2001-05-01 | Autoquip, Inc. | Compressed air flow rate controller for paint sprayer system |
| JP5030871B2 (en) * | 2008-06-18 | 2012-09-19 | 浜松ホトニクス株式会社 | 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 |
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