CN202267226U - Automatic control system of coal burning boiler - Google Patents
Automatic control system of coal burning boiler Download PDFInfo
- Publication number
- CN202267226U CN202267226U CN2011203672765U CN201120367276U CN202267226U CN 202267226 U CN202267226 U CN 202267226U CN 2011203672765 U CN2011203672765 U CN 2011203672765U CN 201120367276 U CN201120367276 U CN 201120367276U CN 202267226 U CN202267226 U CN 202267226U
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- China
- Prior art keywords
- coal
- air
- frequency transformer
- control system
- feeder
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- Expired - Fee Related
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Abstract
The utility model discloses an automatic control system of a coal burning boiler. The automatic control system comprises an oil supply pump, a blower, a coal feeder and an induced draft fan, and is characterized in that: the oil supply pump is connected with an oil supply pump frequency transformer; the blower is connected with a blower frequency transformer; the coal feeder is connected with a coal feeder frequency transformer; the induced draft fan is connected with an induced draft fan frequency transformer; the oil supply pump frequency transformer, the blower frequency transformer, the coal feeder frequency transformer and the induced draft fan frequency transformer are connected with a programmable controller through a circuit respectively; the programmable controller is connected with a human-machine interface through a circuit; an automatic switching knob, an air-coal ratio adjusting knob and a power supply indicating lamp are arranged on the human-machine interface; and a touch operation is adopted. The automatic control system can automatically adjust the air-coal ratio to ensure that the boiler is always in the optimal burning state to save electricity and coal.
Description
Technical field
The utility model relates to the boiler combustion system field, particularly a kind of coal-burning boiler automatic control system.
Background technology
Coal-burning boiler is with the heat transferred recycle oil that produces through fire coal; The recycle oil that contains heat gets into forming machine or other equipment that need heat; The working condition of boiler: motors such as air blast, air-introduced machine, fire grate all are power frequency operations, and adjustings such as the adjusting of drum, air inducing amount, the adjusting of coal-supplying amount, combustion case all are to lean on to regulate manually, and automatic controlling level is low; The quality of boiler combustion situation relies on fireman's operant level fully; Not only fireman's labour intensity is big, and does not realize continuous closed-loop control, and the operational efficiency of boiler is restricted.
Such method of operation is from the angle of power consumption and Coal-fired capacity, and the cost of its operation is appreciable, and conserve space wherein is quite big.
The utility model content
In order to overcome the defective that above-mentioned prior art exists, the utility model provides a kind of coal-burning boiler automatic control system, and it is good to be applied to the boiler combustion effect; Heat utilization efficiency is high, makes burning more stable, more economical, controls more steady; Make boiler be in optimal combustion state, energy saving all the time.
To achieve these goals, the technical scheme of the utility model is following:
The coal-burning boiler automatic control system comprises oil feed pump, air blast, feeder and air-introduced machine, is characterized in; Said oil feed pump connects the oil feed pump frequency converter; Air blast connects the blower variable frequency device, and feeder connects the feeder frequency converter, and air-introduced machine connects the air-introduced machine frequency converter; Said oil feed pump frequency converter, blower variable frequency device, feeder frequency converter are connected Programmable Logic Controller through circuit respectively with the air-introduced machine frequency converter, and said Programmable Logic Controller connects man-machine interface through circuit again.
Further, automatic switchover knob, coal-air ratio adjusting knob and power supply indicator are set on the said man-machine interface, each function knob adopts touch screen operation, and is easy to use.
Gather the numerical information of air blast, feeder and air-introduced machine through said Programmable Logic Controller; The frequency converter corresponding through suitable regulating command makes the speed of air blast, feeder and air-introduced machine reach in good time proportioning; Make coal-air ratio be in optimum state, the thermal efficiency of boiler is maximum.
When the air quantity in the boiler and coal amount proportioning are not good, through corresponding frequency converter information is transferred to said Programmable Logic Controller, Programmable Logic Controller is regulated the speed of air blast, feeder and air-introduced machine again through analyzing and processing, makes it to reach best wind coal proportion.
The beneficial effect of the utility model is, can effectively regulate coal-air ratio, makes boiler be in optimal combustion state, energy saving all the time.
Description of drawings
Fig. 1 is the structural representation of the utility model.
The specific embodiment:
For the creation characteristic, the technological means that make the utility model and reach purpose and be easy to understand and understand, further set forth the utility model below in conjunction with specific embodiment.
Embodiment:
Referring to Fig. 1; The coal-burning boiler automatic control system; Comprise oil feed pump 3, air blast 4, feeder 5, air-introduced machine 6, oil feed pump frequency converter 31, blower variable frequency device 41, feeder frequency converter 51, air-introduced machine frequency converter 61; The Programmable Logic Controller 1 that is connected respectively with each frequency converter, and the man-machine interface 2 that is connected with Programmable Logic Controller 1 circuit.
Wherein, automatic switchover knob, coal-air ratio adjusting knob and power supply indicator are set on the man-machine interface 2, each function knob adopts touch screen operation, and is easy to use.
The action principle of the utility model is:
Gather the numerical information of air blast 4, feeder 5 and air-introduced machine 6 through said Programmable Logic Controller 1; Make air blast 4, feeder 5 reach in good time proportioning through the corresponding frequency converter of suitable regulating command with the speed of air-introduced machine 6; Make coal-air ratio be in optimum state, the thermal efficiency of boiler is maximum.
When the air quantity in the boiler and coal amount proportioning are not good; Through corresponding frequency converter information is transferred to said Programmable Logic Controller 1; Programmable Logic Controller 1 is regulated the speed of air blast 4, feeder 5 and air-introduced machine 6 again through analyzing and processing, makes it to reach best wind coal proportion.
This cover control system is oil temperature supplying, the oil return temperature difference according to the heat conducting oil boiler combustion system, and the speed of control air blast, air-introduced machine, feeder and oil circulating pump is to reach good combustion efficiency and lower power consumption.
More than show and described the advantage of basic principle, principal character and the utility model of the utility model.The technical staff of the industry should understand; The utility model is not restricted to the described embodiments; The principle of describing in the foregoing description and the specification that the utility model just is described; The utility model also has various changes and modifications under the prerequisite that does not break away from the utility model spirit and scope, and these variations and improvement all fall in the utility model scope that requires protection.The utility model requires protection domain to be defined by appending claims and equivalent thereof.
Claims (2)
1. the coal-burning boiler automatic control system comprises oil feed pump, air blast, feeder and air-introduced machine, it is characterized in that; Said oil feed pump connects the oil feed pump frequency converter; Air blast connects the blower variable frequency device, and feeder connects the feeder frequency converter, and air-introduced machine connects the air-introduced machine frequency converter; Said oil feed pump frequency converter, blower variable frequency device, feeder frequency converter are connected Programmable Logic Controller through circuit respectively with the air-introduced machine frequency converter, and said Programmable Logic Controller connects man-machine interface through circuit again.
2. coal-burning boiler automatic control system according to claim 1 is characterized in that, automatic switchover knob, coal-air ratio adjusting knob and power supply indicator are set on the said man-machine interface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203672765U CN202267226U (en) | 2011-09-30 | 2011-09-30 | Automatic control system of coal burning boiler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203672765U CN202267226U (en) | 2011-09-30 | 2011-09-30 | Automatic control system of coal burning boiler |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202267226U true CN202267226U (en) | 2012-06-06 |
Family
ID=46158019
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011203672765U Expired - Fee Related CN202267226U (en) | 2011-09-30 | 2011-09-30 | Automatic control system of coal burning boiler |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202267226U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103292315A (en) * | 2013-06-17 | 2013-09-11 | 中山市兴和生物能源科技有限公司 | Biomass burner |
| CN103307756A (en) * | 2013-07-18 | 2013-09-18 | 青岛特利尔新能源有限责任公司 | Control system for water-coal-slurry heat-conducting oil boiler |
| CN113137766A (en) * | 2021-04-22 | 2021-07-20 | 江西江右净达热能科技有限公司 | Boiler automation control system |
-
2011
- 2011-09-30 CN CN2011203672765U patent/CN202267226U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103292315A (en) * | 2013-06-17 | 2013-09-11 | 中山市兴和生物能源科技有限公司 | Biomass burner |
| CN103307756A (en) * | 2013-07-18 | 2013-09-18 | 青岛特利尔新能源有限责任公司 | Control system for water-coal-slurry heat-conducting oil boiler |
| CN113137766A (en) * | 2021-04-22 | 2021-07-20 | 江西江右净达热能科技有限公司 | Boiler automation control system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120606 Termination date: 20120930 |