CN205261626U - Automatic boiler control system - Google Patents
Automatic boiler control system Download PDFInfo
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- CN205261626U CN205261626U CN201521018082.9U CN201521018082U CN205261626U CN 205261626 U CN205261626 U CN 205261626U CN 201521018082 U CN201521018082 U CN 201521018082U CN 205261626 U CN205261626 U CN 205261626U
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- control system
- flue gas
- combustion chamber
- automatic control
- air
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Abstract
The utility model belongs to the technical field of boiler control system, a automatic boiler control system is disclosed. This control system includes feed arrangement, combustion chamber, fume extractor, steam pressure sensor, steam temperature sensor, smoke detection ware, central controller, feeding conveyer, air -blower, grate governor and draught fan. The utility model discloses automatic boiler control system can realize the multiplex control to the feeding and the burning of fuel in drawing the detection of flue gas the entry control system, effectively reduces atmospheric pollutants's production and can make fuel be in the efficient fired state.
Description
Technical field
The utility model relates to boiler control system technical field, relates in particular to a kind of boiler automatic control system.
Background technology
Boiler is a kind of energy conversion, and its chemical energy by fuel combustion is converted to the heat energy of steam or high-temperature water. In combustion apparatus part, heat is constantly emitted in fuel combustion, produces a large amount of high-temperature flue gas simultaneously, and flue gas is finally discharged by fume extractor. Boiler is widely used in the productive life of modern society, the existing boiler majority taking coal, oil or living beings as fuel is difficult to reach " emission standard of air pollutants for boilers " requirement (GB13271-2014), especially in the not clean-burning situation of fuel, pollute more serious.
In actual motion, controlling boiler combustion is to save the energy in optimum state, reduces the key that pollutant produces. And the combustion process of boiler except with being designed with of boiler itself outside the Pass, more with one line boiler workman's operation is closely bound up. Manual operation is difficult to accurate control, and boiler can not be moved in optimum state, has not only wasted the energy, and has produced a large amount of atmosphere pollutions. Therefore, need badly and a kind ofly can effectively reduce the generation of atmosphere pollution and can make fuel in the boiler boiler automatic control system in efficient burning state.
Utility model content
Technical problem to be solved in the utility model, is to provide a kind of and can effectively reduces the generation of atmosphere pollution and can make fuel in the boiler boiler automatic control system in efficient burning state.
The utility model solves the problems of the technologies described above adopted technical scheme:
A kind of boiler automatic control system, comprise feed arrangement, combustion chamber and fume extractor, described feed arrangement is delivered to fuel in described combustion chamber, the flue gas that described burning Indoor Combustion produces enters fume extractor and is discharged by described fume extractor, described boiler automatic control system also comprises steam pressure sensor, vapor (steam) temperature sensor, flue gas detector, central controller, feeding conveyor, air blast, fire grate governor and air-introduced machine, described steam pressure sensor is inputted described central controller for detection of the steam pressure in combustion chamber and by institute's measuring pressure, described vapor (steam) temperature sensor is inputted described central controller for detection of the vapor (steam) temperature in combustion chamber and by measured temperature, gas componant in the flue gas that described flue gas detector produces for detection of described combustion chamber, concentration also will detect data and input described central controller, the output of described central controller respectively with described feeding conveyor, air blast, fire grate governor and air-introduced machine connect, described feeding conveyor drives into materials device the fuel in described combustion chamber is supplied with and regulated, described air blast, fire grate governor and air-introduced machine regulate the air quantity in described combustion chamber.
As the further improvement of technique scheme, described air blast comprises primary air fan and overfire air fan.
As the further improvement of technique scheme, described flue gas detector comprises oxygen detection module.
As the further improvement of technique scheme, described flue gas detector comprises hydrocarbon detection module.
As the further improvement of technique scheme, described flue gas detector comprises oxynitrides detection module.
As the further improvement of technique scheme, described flue gas detector comprises sulfur dioxide detection module.
The beneficial effects of the utility model are:
The utility model boiler automatic control system is introduced the detection of flue gas in control system, can realize charging to fuel and the multiple control of burning, effectively reduces the generation of atmosphere pollution and can make fuel in efficient fired state.
Brief description of the drawings
Fig. 1 is the structure chart of the utility model boiler automatic control system;
Fig. 2 is the structural representation of the Steam pressure control of the utility model boiler automatic control system;
Fig. 3 is the flow chart of the Steam pressure control of the utility model boiler automatic control system;
Fig. 4 is the structural representation of the vapor (steam) temperature control of the utility model boiler automatic control system;
Fig. 5 is the flow chart of the vapor (steam) temperature control of the utility model boiler automatic control system;
Fig. 6 is the structural representation of the oxygen concentration control of the utility model boiler automatic control system;
Fig. 7 is the flow chart of the oxygen concentration control of the utility model boiler automatic control system;
Fig. 8 is the structural representation of the hydrocarbon concentration control of the utility model boiler automatic control system;
Fig. 9 is the flow chart of the hydrocarbon concentration control of the utility model boiler automatic control system;
Figure 10 is the structural representation of the oxynitride concentration control of the utility model boiler automatic control system;
Figure 11 is the flow chart of the oxynitride concentration control of the utility model boiler automatic control system.
Detailed description of the invention
Below with reference to embodiment and accompanying drawing, the technique effect of design of the present utility model, concrete structure and generation is clearly and completely described, to understand fully the purpose of this utility model, feature and effect. Obviously; described embodiment is a part of embodiment of the present utility model, instead of whole embodiment, based on embodiment of the present utility model; other embodiment that those skilled in the art obtains under the prerequisite of not paying creative work, all belong to the scope that the utility model is protected. In addition, all connection/annexations that relate in patent, not singly refer to that member directly joins, and refer to and can, according to concrete performance, connect auxiliary by adding or reducing, and form more excellent draw bail. Each technical characterictic in the utility model, can combination of interactions under the prerequisite of not conflicting conflict.
Please refer to Fig. 1, the utility model boiler automatic control system comprises feed arrangement, combustion chamber, fume extractor, steam pressure sensor, vapor (steam) temperature sensor, flue gas detector, central controller, feeding conveyor, air blast, fire grate governor and air-introduced machine; Air blast comprises primary air fan and overfire air fan.
Feed arrangement is delivered to fuel in combustion chamber, the flue gas that burning Indoor Combustion produces enters fume extractor and is discharged by fume extractor, steam pressure sensor is for detection of the steam pressure in combustion chamber and by institute's measuring pressure input central controller, vapor (steam) temperature sensor is for detection of the vapor (steam) temperature in combustion chamber and measured temperature is inputted to central controller, gas componant in the flue gas that flue gas detector produces for detection of combustion chamber, concentration also will detect data input central controller, the output of central controller respectively with feeding conveyor, air blast, fire grate governor and air-introduced machine connect, feeding conveyor drives into materials device the fuel in combustion chamber is supplied with and regulated, primary air fan, overfire air fan, fire grate governor and air-introduced machine regulate the air quantity in combustion chamber.
Flue gas detector comprises oxygen detection module, hydrocarbon detection module, oxynitrides detection module and sulfur dioxide detection module.
Each sensor assembly in flue gas detector is by the data input central processing unit gathering, by central processing unit, the data of input and predefined optimum working parameter are contrasted, then control the operation of feeding conveyor, primary air fan, overfire air fan, fire grate governor and air-introduced machine, adjust the course of conveying of fuel, adjustment air quantity is supplied with, make burning reach optimum state, reduce the generation of pollutant.
The utility model Automatic Control of Boiler method comprises Automatic Control of Boiler method, comprises the steps:
S1, charging, feed arrangement is delivered to fuel in combustion chamber.
S2, pressure, temperature detection, steam pressure sensor detects the steam pressure in combustion chamber and institute's measuring pressure is inputted to described central controller, and vapor (steam) temperature sensor detects and measured temperature is inputted to central controller the vapor (steam) temperature in combustion chamber.
S3, flue gas inspection, flue gas detector detects the gas componant in the flue gas producing in combustion chamber, concentration and surveyed data is inputted to central controller.
S4, burning are controlled, central controller contrasts the data that obtain and predefined optimum working parameter, control again feeding conveyor the supply of fuel is regulated, control primary air fan, overfire air fan, fire grate governor and air-introduced machine air quantity is regulated.
The utility model Automatic Control of Boiler method adopts steam pressure sensor to gather the steam pressure in combustion chamber, by the vapor (steam) temperature in vapor (steam) temperature sensor collection combustion chamber, gathers the oxygen concentration at combustor exit place by flue gas detector, carbonomonoxide concentration, gas concentration lwevel, nitric oxide concentration, content of nitrogen dioxide, sulfur dioxide concentration, flue gas detector is processed after gathering primary data automatically, exports following parameter: gas concentration lwevel, carbonomonoxide concentration, sulfur dioxide concentration, combustion efficiency value, excess air, flue gas loss, the dew point of special fuel, oxynitrides content etc., above-mentioned each sensor is connected with central controller respectively, and the data that collect are transported to central controller, and central controller compared with the parameter setting, feeds back to feeding conveyor by result the data of collecting, primary air fan, overfire air fan, fire grate governor and air-introduced machine, adjust the operational factor of each parts, makes boiler operatiopn in optimum state, reduces the generation of pollutant.
Fig. 2 and Fig. 3 are respectively modular structure figure and the flow chart of boiler pressure control. In burning control steps, the force value that central controller reception steam pressure sensor records also contrasts with default pressure limit; When pressure is during lower than default pressure limit, increase the rotating speed of primary air fan, fire grate governor and feeding conveyor, reduce the rotating speed of air-introduced machine, until reach default pressure limit simultaneously; When pressure is during higher than default pressure limit, reduce the rotating speed of primary air fan, fire grate governor and feeding conveyor, increase the rotating speed of air-introduced machine, until reach default pressure limit simultaneously.
Particularly, the current signal process A/D module of steam pressure sensor conversion is to central controller, central processing unit receives pressure signal, if pressure is lower than default pressure limit, by regulating the frequency converter of primary air fan to increase primary air fan rotating speed, by regulating the frequency converter of air-introduced machine to reduce air-introduced machine rotating speed, by regulating the frequency converter of feeding conveyor to increase feeding conveyor rotating speed, arrange the frequency converter of governor by regulating stove to increase fire grate governor rotating speed, and then make pressure rise, reach critical field; If pressure, higher than default pressure limit, can make pressure drop by contrary adjusting, reach setting range.
Fig. 4 and Fig. 5 are respectively modular structure figure and the flow chart of boiler steam temperature control. In burning control steps, the temperature value that central controller reception vapor (steam) temperature sensor records also contrasts with default temperature range; When temperature is during lower than default temperature range, increase the rotating speed of fire grate governor, reduce the rotating speed of overfire air fan, until reach default temperature range simultaneously; When temperature is during higher than default temperature range, reduce the rotating speed of fire grate governor, increase the rotating speed of overfire air fan, until reach default temperature range simultaneously.
Fig. 6 and Fig. 7 are respectively modular structure figure and the flow chart of Oxygen control. In flue gas inspection step, the oxygen detection module in flue gas detector detects the oxygen concentration in flue gas and institute's measured value is inputted to central controller; In burning control steps, central controller receive the oxygen density value that records of flue gas detector also with default oxygen concentration scope contrast, in the time that the oxygen concentration of flue gas is too high, reduce post-blast machine rotating speed until reach default oxygen concentration scope.
Fig. 8 and Fig. 9 are respectively modular structure figure and the flow chart of hydrocarbon control. In flue gas inspection step, the hydrocarbon detection module in flue gas detector is to the carbon monoxide in flue gas and gas concentration lwevel detects and institute's measured value is inputted to central controller; In burning control steps, central controller receives the carbon monoxide that records of flue gas detector and gas concentration lwevel value and the ratio of the two and default ratio range is contrasted, in the time that the concentration ratio of carbon monoxide and carbon dioxide is too high, the rotating speed that reduces feeding conveyor and fire grate governor increases the rotating speed of primary air fan until reach default ratio range simultaneously.
Particularly, carbonomonoxide concentration adopts electrochemical sensor to detect, and carbon dioxide adopts NDIR sensor to detect, and testing result is with CO/CO2Form be delivered to central controller, what in the lower proof of ratio combustion chamber, burning was carried out is more abundant, if ratio is too high, insufficient or confession hypoxgia shows to burn, need to regulate the rotating speed of feeding conveyor, fire grate governor and primary air fan, increase fuel combustion time and oxygen-supplying amount.
In addition, in flue gas detector, be also provided with carbon monoxide sensing protector, in the time that carbonomonoxide concentration in flue gas exceeds CO sensor measurement scope (> 4000ppm), CO sensor can cut out automatically, and the built-in air douche pump of instrument can be opened automatically, extract fresh air and be supplied to CO sensor, realize real time protection; When carbonomonoxide concentration is during lower than 1600ppm, flushing pump will quit work, and measurement restarts. In this process, can not have influence on the normal amount cls analysis of other sensors.
Figure 10 and Figure 11 are respectively modular structure figure and the flow chart of oxynitrides control. In flue gas inspection step, the oxynitrides detection module in flue gas detector is to the nitric oxide in flue gas and content of nitrogen dioxide detects and institute's measured value is inputted to central controller; In burning control steps, central controller receives the concentration value of the nitric oxide that records of flue gas detector and nitrogen dioxide and the concentration value recording and default concentration range is contrasted, in the time that the concentration value recording is too high, reduce the rotating speed of primary air fan, overfire air fan and fire grate governor until reach default concentration range.
Particularly, nitric oxide and content of nitrogen dioxide adopt electrochemical sensor to detect, and testing result is with NOxRepresent. NOxAs the air pollutants of a quasi-representative, concentration is more low better, as the NO of burning generationxWhen too high, can, by regulating oxygen-supplying amount, create local low-oxygen environment, make it to be reduced to N2。
Sulfur dioxide mainly adopts electrochemical sensor to detect, with SO2Concentration is that output signal is sent to central controller, because the chemical property of sulfide, not the adjusting in combustion process can reduce, and needs based on fuel, combustion case to adopt the front desulfurization of different burnings or the rear desulfurization industry of burning, and this control system is for SO2Concentration is taking monitoring as main, if its concentration is far more than normal combustion standard, system can be sent instruction, transfers Artificial Control to by automatic control, checks SO2Concentration over-standard reason is also taked corresponding pollution treatment measure.
More than that preferred embodiment of the present utility model is illustrated, but the utility model is not limited to described embodiment, those of ordinary skill in the art also can make all equivalent variations or replacement under the prerequisite without prejudice to the utility model spirit, and the distortion that these are equal to or replacement are all included in the application's claim limited range.
Claims (6)
1. a boiler automatic control system, comprise feed arrangement, combustion chamber and fume extractor, described feed arrangement is delivered to fuel in described combustion chamber, the flue gas that described burning Indoor Combustion produces enters fume extractor and is discharged by described fume extractor, it is characterized in that: described boiler automatic control system also comprises steam pressure sensor, vapor (steam) temperature sensor, flue gas detector, central controller, feeding conveyor, air blast, fire grate governor and air-introduced machine, described steam pressure sensor is inputted described central controller for detection of the steam pressure in combustion chamber and by institute's measuring pressure, described vapor (steam) temperature sensor is inputted described central controller for detection of the vapor (steam) temperature in combustion chamber and by measured temperature, gas componant in the flue gas that described flue gas detector produces for detection of described combustion chamber, concentration also will detect data and input described central controller, the output of described central controller respectively with described feeding conveyor, air blast, fire grate governor and air-introduced machine connect, described feeding conveyor drives into materials device the fuel in described combustion chamber is supplied with and regulated, described air blast, fire grate governor and air-introduced machine regulate the air quantity in described combustion chamber.
2. boiler automatic control system as claimed in claim 1, is characterized in that: described air blast comprises primary air fan and overfire air fan.
3. boiler automatic control system as claimed in claim 1 or 2, is characterized in that: described flue gas detector comprises oxygen detection module.
4. boiler automatic control system as claimed in claim 1 or 2, is characterized in that: described flue gas detector comprises hydrocarbon detection module.
5. boiler automatic control system as claimed in claim 1 or 2, is characterized in that: described flue gas detector comprises oxynitrides detection module.
6. boiler automatic control system as claimed in claim 1 or 2, is characterized in that: described flue gas detector comprises sulfur dioxide detection module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521018082.9U CN205261626U (en) | 2015-12-09 | 2015-12-09 | Automatic boiler control system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521018082.9U CN205261626U (en) | 2015-12-09 | 2015-12-09 | Automatic boiler control system |
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| CN205261626U true CN205261626U (en) | 2016-05-25 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201521018082.9U Expired - Fee Related CN205261626U (en) | 2015-12-09 | 2015-12-09 | Automatic boiler control system |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105465822A (en) * | 2015-12-09 | 2016-04-06 | 深圳粤通新能源环保技术有限公司 | Boiler automatic control system and method |
| CN106016346A (en) * | 2016-05-28 | 2016-10-12 | 许昌东方热力有限公司 | High-efficiency automatic boiler air volume adjusting device |
| CN111911904A (en) * | 2020-07-23 | 2020-11-10 | 山西晋路同创信息技术有限公司 | New energy boiler Internet of things data acquisition control system and acquisition method thereof |
| CN112610979A (en) * | 2020-12-17 | 2021-04-06 | 武汉蓝颖新能源有限公司 | Biomass boiler environmental protection and energy saving control system |
| CN112984521A (en) * | 2021-01-27 | 2021-06-18 | 上海瑢域节能环保科技有限公司 | Automatic energy-saving waste incinerator of feeding |
-
2015
- 2015-12-09 CN CN201521018082.9U patent/CN205261626U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105465822A (en) * | 2015-12-09 | 2016-04-06 | 深圳粤通新能源环保技术有限公司 | Boiler automatic control system and method |
| CN106016346A (en) * | 2016-05-28 | 2016-10-12 | 许昌东方热力有限公司 | High-efficiency automatic boiler air volume adjusting device |
| CN111911904A (en) * | 2020-07-23 | 2020-11-10 | 山西晋路同创信息技术有限公司 | New energy boiler Internet of things data acquisition control system and acquisition method thereof |
| CN112610979A (en) * | 2020-12-17 | 2021-04-06 | 武汉蓝颖新能源有限公司 | Biomass boiler environmental protection and energy saving control system |
| CN112984521A (en) * | 2021-01-27 | 2021-06-18 | 上海瑢域节能环保科技有限公司 | Automatic energy-saving waste incinerator of feeding |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160525 Termination date: 20211209 |
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| CF01 | Termination of patent right due to non-payment of annual fee |