CN106642607A - Linear control method for split multi-blade regulating air valve - Google Patents
Linear control method for split multi-blade regulating air valve Download PDFInfo
- Publication number
- CN106642607A CN106642607A CN201510727421.9A CN201510727421A CN106642607A CN 106642607 A CN106642607 A CN 106642607A CN 201510727421 A CN201510727421 A CN 201510727421A CN 106642607 A CN106642607 A CN 106642607A
- Authority
- CN
- China
- Prior art keywords
- air valve
- split
- control method
- opening degree
- multipage
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/30—Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/70—Control systems characterised by their outputs; Constructional details thereof
- F24F11/72—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure
- F24F11/74—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure for controlling air flow rate or air velocity
- F24F11/745—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure for controlling air flow rate or air velocity the air flow rate increasing with an increase of air-current or wind pressure
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/50—Control or safety arrangements characterised by user interfaces or communication
- F24F11/56—Remote control
- F24F11/59—Remote control for presetting
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Fuzzy Systems (AREA)
- Mathematical Physics (AREA)
- Signal Processing (AREA)
- Flow Control (AREA)
Abstract
The invention discloses a linear control method for a split multi-blade regulating air valve and provides a control method. According to the method, an opening degree instruction of a controller is corrected, and the correction result is output as an instruction, so that opening degree projection areas of the split multi-blade regulating air valve linearly correspond to 0-100% opening degree instructions of the controller. Thus, the control effect is improved for the split multi-blade regulating air valve during PID control of the air volume and the air pressure, and PID control stability of the air volume and the air pressure is improved.
Description
Technical field
The present invention relates to a kind of control method of split multipage adjusting air valve, specifically a kind of to make the implementing result of split multipage adjusting air valve keep the control method of linear relationship with control command.
Background technology
Split multipage adjusting air valve is air quantity, the wind pressure regulator commonly used in heating and ventilation project, and it realizes the regulation to air quantity by the rotational angle of the split multipage air valve blades of adjustment.The executing agency of split multipage adjusting air valve receives 0 ~ 100% opening control signal, linearly corresponds to 0 ~ 90 ° of opening angle, realizes the continuously adjustabe of opening angle.However, real valve opening result is the projected area of split multipage valve area, rather than opening angle.The projected area correspondence opening angle of split multipage valve area is nonlinear function, so as to cause controller to send 0 ~ 100% opening degree command corresponding to valve opening result for non-linear, adjust to the PID of air quantity, blast and bring difficulty, it is difficult to realize stability contorting.
The content of the invention
The invention provides a kind of control method, controller opening degree command is modified, using the result of amendment as order output, 0 ~ 100% opening degree command for sending the area linear correspondence controller of split multipage adjusting air valve aperture projection, split multipage adjusting air valve is set to improve control effect in air quantity, the PID control of blast, the PID control stability for making air quantity, blast is improved.
The Mathematical Modeling of split multipage adjusting air valve aperture projected area is：S=K*(1-COS（0.9*CV）).
In formula, S is the projected area of split multipage adjusting air valve aperture, and K is the standard-sized sheet area constant of split multipage adjusting air valve, and CV is controller opening degree command, CV ∈（0,100）.
Revised opening degree command：CVc= ACOS(1-0.01*CV)/0.9 .
Implementing result：S=K*0.01*CV.So as to set up the linear relationship of S and controller opening degree command CV.
Description of the drawings
Fig. 1：Flow chart of the present invention.
Fig. 2：Control order and valve opening angular dependence figure.
Fig. 3：Control order and valve opening perspective plane graph of a relation.
Specific embodiment
Below in conjunction with the accompanying drawings and embodiment is described in further details to the present invention.
Such as accompanying drawing 1, by control command CV of split multipage adjusting air valve 0 ~ 100%, revised control command CVc=ACOS (1-0.01*CV)/0.9 is obtained after being modified, revised control command CVc is converted to into corresponding 0-10V or 4-20mA control signals by the DA of controller, fan valve executor then presses control signal execution action, split multipage adjusting air valve is set to obtain corresponding opening angle, such as accompanying drawing 2.Then split multipage adjusting air valve aperture projected area S=K* (1-COS are obtained（0.9* ACOS(1-0.01*CV)/0.9）), such as accompanying drawing 3.
The present invention have modified the nonlinear characteristic of electronic split multipage air-valve, and in air quantity, the PID control of blast control effect is improve, and the PID control stability for making air quantity, blast is improved.
Claims (4)
1. a kind of linear control method of split multipage adjusting air valve, it is characterised in that the opening degree command of controller is modified using correction algorithm, so that split multipage adjusting air valve aperture projected area linearly corresponds to 0 ~ 100% opening degree command of controller.
2. control method according to claim 1, it is characterised in that controller opening degree command CV ∈（0,100）.
3. control method according to claim 1, it is characterised in that the Mathematical Modeling for setting up split multipage adjusting air valve aperture projected area is S=K* (1-COS（0.9*CV）).
4. control method according to claim 1, it is characterised in that revised opening degree command CVc=
ACOS(1-0.01*CV)/0.9。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510727421.9A CN106642607A (en) | 2015-11-02 | 2015-11-02 | Linear control method for split multi-blade regulating air valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510727421.9A CN106642607A (en) | 2015-11-02 | 2015-11-02 | Linear control method for split multi-blade regulating air valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106642607A true CN106642607A (en) | 2017-05-10 |
Family
ID=58811008
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510727421.9A Pending CN106642607A (en) | 2015-11-02 | 2015-11-02 | Linear control method for split multi-blade regulating air valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106642607A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1085310A (en) * | 1992-09-26 | 1994-04-13 | 三洋电机株式会社 | The control method of air regulator |
| CN2269548Y (en) * | 1996-08-31 | 1997-12-03 | 南通市海峰空调设备有限责任公司 | Gear split multiple blade regulating valve |
| CN2777412Y (en) * | 2005-02-25 | 2006-05-03 | 沈新荣 | Electric dynamically regulated on-pressure related variable air flow terminal apparatus |
| JP2013137140A (en) * | 2011-12-28 | 2013-07-11 | Azbil Corp | Air volume control system and air volume control method |
| CN104154635A (en) * | 2014-08-14 | 2014-11-19 | 河海大学常州校区 | Variable air volume room temperature control method based on fuzzy PID and prediction control algorithm |
| CN104806773A (en) * | 2015-05-12 | 2015-07-29 | 江苏欧标有限公司 | High-accuracy adjusting butterfly valve |
| CN104949283A (en) * | 2015-06-30 | 2015-09-30 | 上海卓思智能科技有限公司 | Air valve adjusting method and system for controlling air volume |
-
2015
- 2015-11-02 CN CN201510727421.9A patent/CN106642607A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1085310A (en) * | 1992-09-26 | 1994-04-13 | 三洋电机株式会社 | The control method of air regulator |
| CN2269548Y (en) * | 1996-08-31 | 1997-12-03 | 南通市海峰空调设备有限责任公司 | Gear split multiple blade regulating valve |
| CN2777412Y (en) * | 2005-02-25 | 2006-05-03 | 沈新荣 | Electric dynamically regulated on-pressure related variable air flow terminal apparatus |
| JP2013137140A (en) * | 2011-12-28 | 2013-07-11 | Azbil Corp | Air volume control system and air volume control method |
| CN104154635A (en) * | 2014-08-14 | 2014-11-19 | 河海大学常州校区 | Variable air volume room temperature control method based on fuzzy PID and prediction control algorithm |
| CN104806773A (en) * | 2015-05-12 | 2015-07-29 | 江苏欧标有限公司 | High-accuracy adjusting butterfly valve |
| CN104949283A (en) * | 2015-06-30 | 2015-09-30 | 上海卓思智能科技有限公司 | Air valve adjusting method and system for controlling air volume |
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| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20170510 |