CN109539302A - Gas fired-boiler gas regulating device - Google Patents
Gas fired-boiler gas regulating device Download PDFInfo
- Publication number
- CN109539302A CN109539302A CN201811622929.2A CN201811622929A CN109539302A CN 109539302 A CN109539302 A CN 109539302A CN 201811622929 A CN201811622929 A CN 201811622929A CN 109539302 A CN109539302 A CN 109539302A
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- China
- Prior art keywords
- boiler
- module
- gas
- blower
- gas flow
- 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.)
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- 230000001105 regulatory effect Effects 0.000 title claims abstract description 18
- 238000006243 chemical reaction Methods 0.000 claims abstract description 20
- 238000001514 detection method Methods 0.000 claims abstract description 14
- 238000007689 inspection Methods 0.000 claims 1
- 239000007789 gas Substances 0.000 abstract description 47
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 abstract description 3
- 239000003546 flue gas Substances 0.000 abstract description 3
- 230000008859 change Effects 0.000 abstract description 2
- 238000011897 real-time detection Methods 0.000 description 4
- 239000000567 combustion gas Substances 0.000 description 3
- 230000009466 transformation Effects 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000003750 conditioning effect Effects 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000004069 differentiation Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 238000012886 linear function Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23N—REGULATING OR CONTROLLING COMBUSTION
- F23N3/00—Regulating air supply or draught
- F23N3/002—Regulating air supply or draught using electronic means
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Regulation And Control Of Combustion (AREA)
Abstract
The invention discloses a kind of gas fired-boiler gas regulating devices, including boiler body, PID controller, gas flow detection module, signal conversion module, frequency converter and blower, boiler body is equipped with valve, PID controller is electrically connected with valve, gas flow detection module is set at valve, and the input terminal of signal conversion module is electrically connected with gas flow detection module, and frequency converter is electrically connected with the output end of signal conversion module, blower is connect with frequency converter, and blower is corresponding with boiler body.Boiler flue gas flow signal is directly acquired by gas flow detection module, and gas flow signal is sent to signal conversion module, flow module is converted to the input control signal of frequency converter by signal conversion module, realize the frequency conversion of frequency converter, to change the rotational frequency of blower, so that the air quantity for entering boiler body is adjusted, the adjustable range of air quantity is refined, to improve the degree of regulation of air quantity.
Description
Technical field
The invention belongs to a kind of flue gas conditioning devices of gas fired-boiler, adjust and fill more particularly, to a kind of gas fired-boiler combustion gas
It sets.
Background technique
The control for thering is damper aperture to control and pass through variable frequency adjustment air capacity into the control mode of boiler air amount
Two kinds.In both control modes, due to the non-linearity of damper aperture and load relationship, damper aperture and reality
It is difficult to realize accurately control into burner hearth air capacity.Existing inlet air of boiler amount is to be opened according to gas flow signal by valve
Degree connecting rod direct regulation and control damper aperture control actually enters the air quantity of boiler, since the control of the aperture of connecting rod and air door is all
Mechanically actuated, such control mode error is big, and degree of regulation is not high.
Summary of the invention
The purpose of the present invention is to provide a kind of gas fired-boiler combustion gas tune for being able to solve at least one of above problem
Regulating device.
According to an aspect of the invention, there is provided a kind of gas fired-boiler gas regulating device, including boiler body, PID
Controller, gas flow detection module, signal conversion module, frequency converter and blower, boiler body are equipped with valve, PID controller
It is electrically connected with valve, gas flow detection module is set at valve, and the input terminal and gas flow of signal conversion module detect mould
Block electrical connection, frequency converter are electrically connected with the output end of signal conversion module, and blower is connect with frequency converter, blower and boiler body phase
It is corresponding.
The beneficial effects of the present invention are: directly acquiring boiler flue gas flow signal by gas flow detection module, and will
Gas flow signal is sent to signal conversion module, and flow module is converted to the input control of frequency converter by signal conversion module
Signal processed, realizes the frequency conversion of frequency converter, to change the revolving speed of blower, that is, realizes the rotational speed regulation of blower, so that into
Air quantity to boiler body is adjusted.The gas fired-boiler gas regulating device is banned through the big minor adjustment of throttle opening as a result,
Inlet air of boiler amount, refines the adjustable range of air quantity, to improve the degree of regulation of air quantity.
In some embodiments, gas fired-boiler gas regulating device further includes pressure detecting module, pressure detecting module
It is correspondingly arranged with boiler body, pressure detecting module is electrically connected with PID controller.It, can as a result, by being equipped with pressure detecting module
With the steam pressure that real-time detection boiler body discharges, conducive to the monitoring of the working condition of boiler body.
In some embodiments, gas fired-boiler gas regulating device further includes pressure setting module, pressure setting module
It is electrically connected with pressure detecting module, pressure setting module is electrically connected with PID controller.Pass through pressure detecting module pair as a result,
Boiler body discharges the detection of steam pressure, and is compared with the preset pressure value of pressure setting module, controls by PID
After device processed is compared, further and then the degree of regulation of air quantity can be improved accurate frequency converter to the rotational speed regulation of blower.
In some embodiments, blower is three-phase blower.Thus, it is possible to meet the requirement of blower.
Detailed description of the invention
Fig. 1 is the operation principle schematic diagram of gas fired-boiler gas regulating device of the invention.
Specific embodiment
The invention will now be described in further detail with reference to the accompanying drawings.
Referring to Fig.1.Gas fired-boiler gas regulating device, including boiler body 1, PID controller (Proportion
Integration Differentiation, i.e. proportional-integral derivative controller) 2, gas flow detection module 3, signal turn
Block 4, frequency converter 5 and blower 6 are changed the mold, boiler body 1 is equipped with valve 11, and PID controller 2 is electrically connected with valve 11 by conducting wire,
Gas flow detection module 3 is set at valve 11, and the input terminal of signal conversion module 4 is with gas flow detection module 3 by leading
Line electrical connection, frequency converter 5 are electrically connected with the output end of signal conversion module 4 by conducting wire, and blower 6 is connect with frequency converter 5, blower
6 is corresponding with boiler body 1, i.e., blower 6 conveys air quantity to boiler body 1.In actual use, valve 11 passes through motor
Size is opened in control, and PID controller 2 is connect with the motor by conducting wire, so that PID controller can be convenient control valve 11 and beat
Size is opened, convenient for inputting the control of air quantity.
When in use, gas flow detection module 3 can enter valve with real-time detection to the gas fired-boiler gas regulating device
The gas flow of door 11, and gas flow signal is transferred to signal conversion module 4；Gas flow signal passes through signal modulus of conversion
Input control signal after functional transformation in block 4 as frequency converter 5；Wherein, the functional transformation in signal conversion module 4 includes
But it is not limited to: proportion function, once linear function or according to the nonlinear fitting curve under different load, through signal conversion module
Control signal after 4 transformation as inlet air of boiler amount, and it is delivered to frequency converter 5.Turning for blower 6 is controlled finally by frequency converter 5
Speed realizes that blower 6 conveys the adjusting of air quantity.
Gas fired-boiler gas regulating device of the invention further includes pressure detecting module 7, pressure detecting module 7 and boiler sheet
Body 1 is correspondingly arranged, and pressure detecting module 7 is electrically connected with PID controller 2.
Gas fired-boiler gas regulating device further includes pressure setting module 8, pressure setting module 8 and pressure detecting module 7
Electrical connection, pressure setting module 8 are electrically connected with PID controller 2.
When in use, pressure detecting module 7 can detecte the steam pressure of the release of boiler body 1；Pressure setting module 8 can
To preset ideal vapour pressure force value；The actual steam pressure value and pressure that pressure detecting module 7 measures set mould
The desired vapor pressure value of block 8 is delivered at PID controller 2, and the numerical value of 2 pairs of the two of PID controller is compared, then right
The openings of sizes of valve 11 is adjusted, and improves the degree of regulation of air quantity, so that the intake of boiler body 1 meets use and wants
It asks, reaches energy-saving effect.
Blower 6 is three-phase blower, convenient for controlling the intake of boiler body 1.
In summary, gas fired-boiler gas regulating device of the invention passes through simultaneously to 11 combustion gas stream of valve of gas fired-boiler
The real-time detection and boiler body 1 of amount generate the real-time detection of steam pressure；Pass through opening for 2 control valve 11 of PID controller
Mouth size, and by the rotational speed regulation of Frequency Converter Control blower, to improve the degree of regulation of amount of air of gas boiler.
What has been described above is only a preferred embodiment of the present invention, it is noted that for those of ordinary skill in the art
For, without departing from the concept of the premise of the invention, various modifications and improvements can be made, these belong to the present invention
Protection scope.
Claims (4)
1. gas fired-boiler gas regulating device, which is characterized in that including boiler body (1), PID controller (2), gas flow inspection
Module (3), signal conversion module (4), frequency converter (5) and blower (6) are surveyed, the boiler body (1) is equipped with valve (11), described
PID controller (2) is electrically connected with valve (11), and the gas flow detection module (3) is set at valve (11), and the signal turns
The input terminal of mold changing block (4) is electrically connected with gas flow detection module (3), the frequency converter (5) and signal conversion module (4)
Output end electrical connection, the blower (6) connect with frequency converter (5), and the blower (6) is corresponding with boiler body (1).
2. gas fired-boiler gas regulating device according to claim 1, which is characterized in that further include pressure detecting module
(7), the pressure detecting module (7) is correspondingly arranged with boiler body (1), the pressure detecting module (7) and PID controller
(2) it is electrically connected.
3. gas fired-boiler gas regulating device according to claim 2, which is characterized in that further include pressure setting module
(8), the pressure setting module (8) is electrically connected with pressure detecting module (7), and the pressure setting module (8) is and PID control
Device (2) electrical connection.
4. described in any item gas fired-boiler gas regulating devices according to claim 1~3, which is characterized in that the blower (6)
For three-phase blower.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811622929.2A CN109539302A (en) | 2018-12-28 | 2018-12-28 | Gas fired-boiler gas regulating device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811622929.2A CN109539302A (en) | 2018-12-28 | 2018-12-28 | Gas fired-boiler gas regulating device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109539302A true CN109539302A (en) | 2019-03-29 |
Family
ID=65857178
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811622929.2A Pending CN109539302A (en) | 2018-12-28 | 2018-12-28 | Gas fired-boiler gas regulating device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109539302A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201496998U (en) * | 2009-09-02 | 2010-06-02 | 江西中船航海仪器有限公司 | Control system of mixed oil-gas burner |
| CN201748468U (en) * | 2010-08-11 | 2011-02-16 | 杨现立 | Flue gas oxygen content control system of gas boiler |
| CN104534505A (en) * | 2014-12-31 | 2015-04-22 | 重庆川然节能技术有限公司 | Energy-saving and safe burning control system and method |
| CN205717312U (en) * | 2016-03-11 | 2016-11-23 | 湖南工程学院 | Intelligent boiler combustion control device |
| CN107120677A (en) * | 2017-06-01 | 2017-09-01 | 上海联达节能科技有限公司 | The method and system that a kind of combustion-supporting wind pressure of heating furnace is automatically controlled |
| CN208804710U (en) * | 2018-12-28 | 2019-04-30 | 广东省特种设备检测研究院佛山检测院 | Gas fired-boiler gas regulating device |
-
2018
- 2018-12-28 CN CN201811622929.2A patent/CN109539302A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201496998U (en) * | 2009-09-02 | 2010-06-02 | 江西中船航海仪器有限公司 | Control system of mixed oil-gas burner |
| CN201748468U (en) * | 2010-08-11 | 2011-02-16 | 杨现立 | Flue gas oxygen content control system of gas boiler |
| CN104534505A (en) * | 2014-12-31 | 2015-04-22 | 重庆川然节能技术有限公司 | Energy-saving and safe burning control system and method |
| CN205717312U (en) * | 2016-03-11 | 2016-11-23 | 湖南工程学院 | Intelligent boiler combustion control device |
| CN107120677A (en) * | 2017-06-01 | 2017-09-01 | 上海联达节能科技有限公司 | The method and system that a kind of combustion-supporting wind pressure of heating furnace is automatically controlled |
| CN208804710U (en) * | 2018-12-28 | 2019-04-30 | 广东省特种设备检测研究院佛山检测院 | Gas fired-boiler gas regulating device |
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