CN111678167A - Ultra-supercritical coal-fired unit boiler full-air-powder online control system - Google Patents
Ultra-supercritical coal-fired unit boiler full-air-powder online control system Download PDFInfo
- Publication number
- CN111678167A CN111678167A CN202010609840.3A CN202010609840A CN111678167A CN 111678167 A CN111678167 A CN 111678167A CN 202010609840 A CN202010609840 A CN 202010609840A CN 111678167 A CN111678167 A CN 111678167A
- Authority
- CN
- China
- Prior art keywords
- monitoring unit
- online monitoring
- air
- unit
- powder
- 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.)
- Granted
Links
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23N—REGULATING OR CONTROLLING COMBUSTION
- F23N1/00—Regulating fuel supply
- F23N1/08—Regulating fuel supply conjointly with another medium, e.g. boiler water
- F23N1/10—Regulating fuel supply conjointly with another medium, e.g. boiler water and with air supply or draught
- F23N1/102—Regulating fuel supply conjointly with another medium, e.g. boiler water and with air supply or draught using electronic means
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P90/00—Enabling technologies with a potential contribution to greenhouse gas [GHG] emissions mitigation
- Y02P90/02—Total factory control, e.g. smart factories, flexible manufacturing systems [FMS] or integrated manufacturing systems [IMS]
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 an ultra-supercritical coal-fired unit boiler full air-powder online control system which comprises a monitoring unit, wherein the monitoring unit comprises a coal powder concentration online monitoring unit, a coal powder fineness online monitoring unit, a secondary air online monitoring unit, a primary air online monitoring unit, an over-fire air online monitoring unit, a fly ash carbon content online monitoring unit, a carbon monoxide online monitoring unit and an air-powder balance distributor control unit, the output end of the monitoring unit is electrically connected with a signal processing unit cabinet in a one-way mode, the output end of the signal processing unit cabinet is connected with an upper computer control unit in a one-way signal mode, and the signal processing unit cabinet comprises a CAN and a protocol converter. The invention solves the problems that the existing coal-fired boiler can not effectively measure and control the parameters of air, powder, ash and flue gas of the boiler, can only carry out combustion control (such as oxygen quantity, steam parameters and the like) through overall parameters, and the operating condition of the boiler is far deviated from the optimal value.
Description
Technical Field
The invention relates to the technical field of coal-fired unit boilers, in particular to an ultra-supercritical coal-fired unit boiler full-air-powder online control system.
Background
The coal-fired boiler is a coal-fired boiler which is a heat energy power device for heating heat medium water or other organic heat carriers (such as heat conduction oil and the like) to a certain temperature (or pressure) by burning the coal in a hearth to release heat energy, and is mainly classified according to purposes and divided into a coal-fired water boiler (supplying boiled water), a coal-fired hot water boiler (heating and bathing), a coal-fired steam boiler (supplying steam), a coal-fired heat conduction oil boiler (boiling and drying) and the like.
The existing coal-fired boiler can not effectively measure and control the parameters of air, powder, ash and flue gas of the boiler, and can only carry out combustion control (such as oxygen quantity, steam parameters and the like) through overall parameters, and the operating condition of the boiler is far away from the optimal value; burner with low "air-coal ratio": the excessively high carbon content and reducing atmosphere of the fly ash are generated, so that the combustion efficiency is reduced, the fly ash is easy to coke and deposit ash, the water-cooled wall is subjected to high-temperature corrosion, and the pipe blockage can be caused; the uneven coal powder amount is superposed with the difference of air supply amount in each pipeline, so that the coal powder concentration at the outlet of each combustor is seriously uneven, and the coal powder mass flow deviation among the combustors can reach +/-30% at most; too high NOx emissions will be generated in burners with a high "windcoal ratio".
Disclosure of Invention
The invention aims to provide an ultra-supercritical coal-fired unit boiler full air-powder online control system, which has the advantage of being capable of effectively measuring and controlling boiler air, powder, ash and flue gas parameters, and solves the problems that the existing coal-fired boiler cannot effectively measure and control the boiler air, powder, ash and flue gas parameters, combustion control (such as oxygen quantity, steam parameters and the like) can only be carried out through the whole parameters, and the operating condition of the boiler is far deviated from the optimal value.
In order to achieve the purpose, the invention provides the following technical scheme: the utility model provides an ultra supercritical coal-fired unit boiler full air powder on-line control system, includes the monitoring unit, the monitoring unit includes buggy concentration on-line monitoring unit, buggy fineness on-line monitoring unit, overgrate air on-line monitoring unit, wind on-line monitoring unit, burn out wind on-line monitoring unit, flying dust carbon content on-line monitoring unit, carbon monoxide on-line monitoring unit and wind power balance distributor control unit, the one-way electric connection of monitoring unit's output has the signal processing unit cabinet, the one-way signal connection of signal processing unit cabinet's output has upper computer control unit, the signal processing unit cabinet includes CAN and protocol converter, buggy concentration on-line monitoring unit, buggy fineness on-line monitoring unit, overgrate air on-line monitoring unit, wind on-line monitoring unit, burn out wind on-line monitoring unit, flying dust carbon content on-line monitoring unit, fly ash carbon content on-, The output of carbon monoxide on-line monitoring unit and fan-dust balance distributor control unit all with the one-way electric connection of input of CAN, the one-way electric connection of output and the input of protocol converter of CAN, the one-way signal connection of output and the input of host computer control unit of protocol converter, the one-way electric connection of output of host computer control unit has DCS display element.
Preferably, the number of the CAN is eight, and the CAN is respectively and electrically connected with the output ends of the pulverized coal concentration online monitoring unit, the pulverized coal fineness online monitoring unit, the secondary air online monitoring unit, the primary air online monitoring unit, the over fire air online monitoring unit, the fly ash carbon content online monitoring unit, the carbon monoxide online monitoring unit and the air-powder balance distributor control unit, and the CAN is electrically connected with the input end of the protocol converter in a one-way mode through a CAN bus.
Preferably, the output end of the protocol converter is connected with the input end of the upper computer control unit through an ethernet signal.
Preferably, the model of the primary air online monitoring unit is D/3-FLM, and the model of the fly ash carbon content online monitoring unit is D/3-CTY.
Preferably, the pulverized coal concentration online monitoring unit, the pulverized coal fineness online monitoring unit, the secondary air online monitoring unit, the primary air online monitoring unit and the over-fire air online monitoring unit form an air-powder online measuring unit, and the model of the air-powder online measuring unit is D/3-SCM.
Preferably, the control method of the ultra-supercritical coal-fired unit boiler full-air-powder online control system comprises the following steps:
a: the method comprises the steps of respectively carrying out online monitoring on air and powder through a coal powder concentration online monitoring unit, a coal powder fineness online monitoring unit, a secondary air online monitoring unit and a primary air online monitoring unit, monitoring the overfire air through the overfire air online monitoring unit, monitoring the absolute value or the relative value of the carbon content of the fly ash through a fly ash carbon content online monitoring unit, and monitoring the carbon monoxide content of a combustion chamber through a carbon monoxide online monitoring unit;
b: after the measured data are comprehensively analyzed, the angle of the inlet of the pulverized coal distributor is automatically adjusted through the control unit of the air-powder balance distributor (the disturbance to pulverized coal flow and air flow is reduced to the maximum extent by adopting a grid butterfly design), and the aim of balancing the concentration and the air quantity of the pulverized coal in each powder conveying pipeline is fulfilled;
c: monitoring result information is transmitted into a corresponding CAN, then the information is transmitted to a protocol converter through a CAN bus, the information is converted into a network signal form through the protocol converter and is transmitted to an upper computer control unit, and the network signal form is displayed on a DCS display unit through the upper computer control unit, so that the control effect is achieved.
Compared with the prior art, the invention has the following beneficial effects:
the coal-fired boiler has the advantages of being capable of effectively measuring and controlling boiler air, powder, ash and flue gas parameters, and solves the problems that the existing coal-fired boiler cannot effectively measure and control the boiler air, powder, ash and flue gas parameters, combustion control can only be carried out through integral parameters (such as oxygen quantity, steam parameters and the like), and the operating condition of the boiler deviates from an optimal value far.
Drawings
FIG. 1 is a schematic diagram of the system of the present invention;
FIG. 2 is a schematic diagram of a monitoring unit system of the present invention;
fig. 3 is a schematic diagram of the signal processing unit cabinet system of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-3, an ultra-supercritical coal-fired unit boiler total air-powder online control system comprises a monitoring unit, wherein the monitoring unit comprises a coal powder concentration online monitoring unit, a coal powder fineness online monitoring unit, a secondary air online monitoring unit, a primary air online monitoring unit, an over-fire air online monitoring unit, a fly ash carbon content online monitoring unit, a carbon monoxide online monitoring unit and a coal powder balance distributor control unit, the coal powder concentration online monitoring unit meets the requirements of continuously, stably and accurately measuring the coal powder concentration and being free of maintenance in a overhaul period, the measuring precision is better than 2%, and the repeatability is better than 0.1%; the coal powder fineness on-line monitoring unit consists of a full-automatic coal powder sampler and a coal powder fineness on-line display system, meets the requirements of continuously, stably and accurately measuring the coal powder fineness and being free of maintenance in a maintenance period, has the measuring precision of better than 2 percent and the repeatability of better than 0.1 percent, is AMQ-II type in the model of the full-automatic coal powder sampler, adopts constant-speed and equal-circular-ring design, fully-automatically and dynamically extracts coal powder samples in a powder conveying pipeline, and provides reliable calibration basis for the continuous and real-time monitoring of the coal powder fineness; the secondary air on-line monitoring unit meets the requirements of continuously, stably and accurately measuring the air volume (air speed) in the powder conveying pipeline and being free of maintenance in a overhaul period, the measurement precision requirement is better than 1%, and the repeatability is better than 0.1%; the primary air on-line monitoring unit meets the requirements of continuously, stably and accurately measuring the inlet air quantity (wind speed) of the coal mill and being free of maintenance in a overhaul period, the measurement precision requirement is better than 1%, and the repeatability is better than 0.1%; the over-fire air on-line monitoring unit meets the requirements of continuously, stably and accurately measuring the air quantity of over-fire air (compensation air) and being free of maintenance in a overhaul period, the measurement precision requirement is better than 3%, and the repeatability is better than 0.1%; the fly ash carbon content on-line monitoring unit meets the requirements of continuously, stably and accurately measuring and displaying the absolute value or the relative value of the fly ash carbon content and being free of maintenance in a overhaul period, the measurement precision requirement is better than 1 percent, and the repeatability is better than 0.1 percent; the carbon monoxide on-line monitoring unit meets the requirements of continuously, stably and accurately measuring the carbon monoxide content of the combustion chamber and being free of maintenance in a overhaul period, the measurement precision requirement is better than 1 percent, and the repeatability is better than 0.1 percent; the output end of the monitoring unit is unidirectionally and electrically connected with a signal processing unit cabinet, the output end of the signal processing unit cabinet is unidirectionally and electrically connected with an upper computer control unit, the signal processing unit cabinet comprises a CAN and a protocol converter, the output ends of a pulverized coal concentration online monitoring unit, a pulverized coal fineness online monitoring unit, a secondary air online monitoring unit, a primary air online monitoring unit, an over-fire air online monitoring unit, a fly ash carbon content online monitoring unit, a carbon monoxide online monitoring unit and a pulverized coal balance distributor control unit are unidirectionally and electrically connected with the input end of the CAN, the output end of the CAN is unidirectionally and electrically connected with the input end of the protocol converter, the pulverized coal balance distributor control unit is a physical core execution unit of a boiler pulverized coal full-parameter automatic control system, a direct current frequency conversion servo mechanism is adopted, and the balance of air volume and pulverized coal concentration among powder feeding pipes is required to be adjusted on the, the state is adjusted at any time according to the running condition of the combustion chamber so as to achieve the optimal running effect, the output end of the protocol converter is in one-way signal connection with the input end of the upper computer control unit, the output end of the upper computer control unit is in one-way electrical connection with a DCS display unit, all the measurement parameters and the system running state of the boiler wind-powder full-parameter automatic control system need to be completely displayed on the DCS display unit of the power plant, intelligent system analysis software is equipped, and the display content comprises the real-time data of the system running state, a wind-powder tangent circle diagram, a bar diagram, a historical trend diagram and the like;
the number of the CAN is eight, and the CAN is respectively and electrically connected with the output ends of the pulverized coal concentration online monitoring unit, the pulverized coal fineness online monitoring unit, the secondary air online monitoring unit, the primary air online monitoring unit, the over-fire air online monitoring unit, the fly ash carbon content online monitoring unit, the carbon monoxide online monitoring unit and the air powder balance distributor control unit, and the CAN is unidirectionally and electrically connected with the input end of the protocol converter through a CAN bus;
the output end of the protocol converter is connected with the input end of the upper computer control unit through an Ethernet signal;
the model of the primary air online monitoring unit is D/3-FLM, the primary air online monitoring unit is used for monitoring inlet air and over-fire air of the coal mill in real time, the model of the fly ash carbon content online monitoring unit is D/3-CTY, the fly ash carbon content online monitoring unit carries out continuous monitoring on the fly ash carbon content, and provides an absolute value or a relative value of the fly ash carbon content of the boiler system in real time for analysis and decision of the control system;
the online pulverized coal concentration monitoring unit, the online pulverized coal fineness monitoring unit, the online secondary air monitoring unit, the online primary air monitoring unit and the online burnout air monitoring unit form an online air-powder measuring unit, the model of the online air-powder measuring unit is D/3-SCM, and the online air-powder measuring unit is used for measuring the air volume, the pulverized coal concentration and the pulverized coal fineness in the powder conveying pipeline in real time;
the coal-fired boiler has the advantages of being capable of effectively measuring and controlling parameters of boiler air, powder, ash and flue gas, solving the problems that the existing coal-fired boiler cannot effectively measure and control the parameters of boiler air, powder, ash and flue gas, combustion control can be carried out only through integral parameters (such as oxygen quantity, steam parameters and the like), and the operating condition of the boiler deviates from an optimal value by far;
a full-wind-powder online control system control method for an ultra-supercritical coal-fired unit boiler comprises the following steps:
a: the method comprises the steps of respectively carrying out online monitoring on air and powder through a coal powder concentration online monitoring unit, a coal powder fineness online monitoring unit, a secondary air online monitoring unit and a primary air online monitoring unit, monitoring the overfire air through the overfire air online monitoring unit, monitoring the absolute value or the relative value of the carbon content of the fly ash through a fly ash carbon content online monitoring unit, and monitoring the carbon monoxide content of a combustion chamber through a carbon monoxide online monitoring unit;
b: after the measured data are comprehensively analyzed, the angle of the inlet of the pulverized coal distributor is automatically adjusted through the control unit of the air-powder balance distributor (the disturbance to pulverized coal flow and air flow is reduced to the maximum extent by adopting a grid butterfly design), and the aim of balancing the concentration and the air quantity of the pulverized coal in each powder conveying pipeline is fulfilled;
c: monitoring result information is transmitted into a corresponding CAN, then the information is transmitted to a protocol converter through a CAN bus, the information is converted into a network signal form through the protocol converter and is transmitted to an upper computer control unit, and the network signal form is displayed on a DCS display unit through the upper computer control unit, so that the control effect is achieved.
In summary, the following steps: this ultra supercritical coal-fired unit boiler full wind powder on-line control system, through buggy concentration on-line monitoring unit, buggy fineness on-line monitoring unit, overgrate air on-line monitoring unit, the on-line monitoring unit of wind, the on-line monitoring unit of flying dust carbon content, carbon monoxide on-line monitoring unit, wind powder balance distributor control unit, the signal processing unit cabinet, the cooperation of host computer control unit and DCS display element is used, solved current coal-fired boiler and can't carry out effective measurement and control to boiler wind, powder, ash and flue gas parameter, can only carry out combustion control (like oxygen content, steam parameter etc.) through whole parameter, the problem of boiler operation operating condition skew optimal value far away.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (6)
1. The utility model provides an ultra supercritical coal-fired unit boiler full wind powder on-line control system, includes monitoring unit, its characterized in that: the monitoring unit comprises a pulverized coal concentration online monitoring unit, a pulverized coal fineness online monitoring unit, a secondary air online monitoring unit, a primary air online monitoring unit, an over-fire air online monitoring unit, a fly ash carbon content online monitoring unit, a carbon monoxide online monitoring unit and a pulverized coal balance distributor control unit, wherein the output end of the monitoring unit is unidirectionally and electrically connected with a signal processing unit cabinet, the output end of the signal processing unit cabinet is unidirectionally and electrically connected with an upper computer control unit, the signal processing unit cabinet comprises a CAN and a protocol converter, and the output ends of the pulverized coal concentration online monitoring unit, the pulverized coal fineness online monitoring unit, the secondary air online monitoring unit, the primary air online monitoring unit, the over-fire air online monitoring unit, the fly ash carbon content online monitoring unit, the carbon monoxide online monitoring unit and the pulverized coal balance distributor control unit are all unidirectionally and electrically connected with the input end of the CAN, the output of CAN and the one-way electric connection of protocol converter's input, protocol converter's output and upper computer control unit's the one-way signal connection of input, upper computer control unit's the one-way electric connection of output has DCS display element.
2. The ultra-supercritical coal-fired unit boiler full-air-powder online control system according to claim 1, characterized in that: the number of the CAN is eight, and the CAN is respectively and electrically connected with the output ends of the pulverized coal concentration online monitoring unit, the pulverized coal fineness online monitoring unit, the secondary air online monitoring unit, the primary air online monitoring unit, the over fire air online monitoring unit, the fly ash carbon content online monitoring unit, the carbon monoxide online monitoring unit and the air powder balance distributor control unit, and the CAN is electrically connected with the input end of the protocol converter in a one-way mode through a CAN bus.
3. The ultra-supercritical coal-fired unit boiler full-air-powder online control system according to claim 1, characterized in that: the output end of the protocol converter is connected with the input end of the upper computer control unit through an Ethernet signal.
4. The ultra-supercritical coal-fired unit boiler full-air-powder online control system according to claim 1, characterized in that: the model of the primary air online monitoring unit is D/3-FLM, and the model of the fly ash carbon content online monitoring unit is D/3-CTY.
5. The ultra-supercritical coal-fired unit boiler full-air-powder online control system according to claim 1, characterized in that: the pulverized coal concentration online monitoring unit, the pulverized coal fineness online monitoring unit, the secondary air online monitoring unit, the primary air online monitoring unit and the over-fire air online monitoring unit form an air-powder online measuring unit, and the model of the air-powder online measuring unit is D/3-SCM.
6. The method for controlling the ultra-supercritical coal-fired unit boiler full-air-powder online control system according to any one of claims 1 to 5, characterized by comprising the following steps of:
a: the method comprises the steps of respectively carrying out online monitoring on air and powder through a coal powder concentration online monitoring unit, a coal powder fineness online monitoring unit, a secondary air online monitoring unit and a primary air online monitoring unit, monitoring the overfire air through the overfire air online monitoring unit, monitoring the absolute value or the relative value of the carbon content of the fly ash through a fly ash carbon content online monitoring unit, and monitoring the carbon monoxide content of a combustion chamber through a carbon monoxide online monitoring unit;
b: after the measured data are comprehensively analyzed, the angle of the inlet of the pulverized coal distributor is automatically adjusted through the control unit of the air-powder balance distributor (the disturbance to pulverized coal flow and air flow is reduced to the maximum extent by adopting a grid butterfly design), and the aim of balancing the concentration and the air quantity of the pulverized coal in each powder conveying pipeline is fulfilled;
c: monitoring result information is transmitted into a corresponding CAN, then the information is transmitted to a protocol converter through a CAN bus, the information is converted into a network signal form through the protocol converter and is transmitted to an upper computer control unit, and the network signal form is displayed on a DCS display unit through the upper computer control unit, so that the control effect is achieved.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010609840.3A CN111678167B (en) | 2020-06-30 | 2020-06-30 | Ultra-supercritical coal-fired unit boiler full-air-powder online control system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010609840.3A CN111678167B (en) | 2020-06-30 | 2020-06-30 | Ultra-supercritical coal-fired unit boiler full-air-powder online control system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111678167A true CN111678167A (en) | 2020-09-18 |
| CN111678167B CN111678167B (en) | 2022-07-12 |
Family
ID=72437546
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010609840.3A Active CN111678167B (en) | 2020-06-30 | 2020-06-30 | Ultra-supercritical coal-fired unit boiler full-air-powder online control system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111678167B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113834093A (en) * | 2021-11-01 | 2021-12-24 | 西安热工研究院有限公司 | Boiler oxygen content wide load optimization control system |
Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04222315A (en) * | 1990-03-14 | 1992-08-12 | Babcock & Wilcox Co:The | Device for monitoring and controlling pulverized coal flow |
| ZA9937B (en) * | 1999-01-05 | 2000-03-29 | Bharat Heavy Electricals | Coupled gasifier. |
| CN202371749U (en) * | 2011-03-25 | 2012-08-08 | 李玲 | Single-fire-nozzle air powder on-line accurate control system for pulverized coal boiler |
| CN102661613A (en) * | 2012-05-10 | 2012-09-12 | 北京华电天仁电力控制技术有限公司 | Air and powder dynamic balancing method based on on-line measurement of coal powder distribution |
| CN203259378U (en) * | 2013-04-26 | 2013-10-30 | 吉林省电力有限公司电力科学研究院 | Boiler thermal test flue gas and temperature calibration device |
| CN103939939A (en) * | 2014-03-13 | 2014-07-23 | 青岛立宇科技开发有限公司 | Digitized combustion control and optimization method and system for pulverized coal boiler |
| CN104696950A (en) * | 2013-12-06 | 2015-06-10 | 烟台龙源电力技术股份有限公司 | A W-flame boiler with a plurality of groups of overfire air nozzles |
| CN204830009U (en) * | 2015-08-04 | 2015-12-02 | 北京能为科技股份有限公司 | A device for measuring buggy concentration and wind speed in pulverized coal boiler pipeline |
| CN108826352A (en) * | 2018-04-09 | 2018-11-16 | 南京新瓦特智控科技有限公司 | A kind of intelligence coal powder density speed fineness on-line monitoring leveling system and its method |
| CN110426494A (en) * | 2019-08-08 | 2019-11-08 | 艾俊清 | Method based on the reduction unburned carbon in flue dust monitored on-line of water cooling wall region CO in furnace |
| CN110906360A (en) * | 2019-11-28 | 2020-03-24 | 安诺克斯(北京)环境科技有限公司 | Working condition control system and method and main control unit |
-
2020
- 2020-06-30 CN CN202010609840.3A patent/CN111678167B/en active Active
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04222315A (en) * | 1990-03-14 | 1992-08-12 | Babcock & Wilcox Co:The | Device for monitoring and controlling pulverized coal flow |
| ZA9937B (en) * | 1999-01-05 | 2000-03-29 | Bharat Heavy Electricals | Coupled gasifier. |
| CN202371749U (en) * | 2011-03-25 | 2012-08-08 | 李玲 | Single-fire-nozzle air powder on-line accurate control system for pulverized coal boiler |
| CN102661613A (en) * | 2012-05-10 | 2012-09-12 | 北京华电天仁电力控制技术有限公司 | Air and powder dynamic balancing method based on on-line measurement of coal powder distribution |
| CN203259378U (en) * | 2013-04-26 | 2013-10-30 | 吉林省电力有限公司电力科学研究院 | Boiler thermal test flue gas and temperature calibration device |
| CN104696950A (en) * | 2013-12-06 | 2015-06-10 | 烟台龙源电力技术股份有限公司 | A W-flame boiler with a plurality of groups of overfire air nozzles |
| CN103939939A (en) * | 2014-03-13 | 2014-07-23 | 青岛立宇科技开发有限公司 | Digitized combustion control and optimization method and system for pulverized coal boiler |
| CN204830009U (en) * | 2015-08-04 | 2015-12-02 | 北京能为科技股份有限公司 | A device for measuring buggy concentration and wind speed in pulverized coal boiler pipeline |
| CN108826352A (en) * | 2018-04-09 | 2018-11-16 | 南京新瓦特智控科技有限公司 | A kind of intelligence coal powder density speed fineness on-line monitoring leveling system and its method |
| CN110426494A (en) * | 2019-08-08 | 2019-11-08 | 艾俊清 | Method based on the reduction unburned carbon in flue dust monitored on-line of water cooling wall region CO in furnace |
| CN110906360A (en) * | 2019-11-28 | 2020-03-24 | 安诺克斯(北京)环境科技有限公司 | Working condition control system and method and main control unit |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113834093A (en) * | 2021-11-01 | 2021-12-24 | 西安热工研究院有限公司 | Boiler oxygen content wide load optimization control system |
Also Published As
| Publication number | Publication date |
|---|---|
| CN111678167B (en) | 2022-07-12 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103244964B (en) | Combustion optimization control system based on acoustically-measured hearth temperature field, and control method thereof | |
| CN103277784B (en) | Supercritical coal-fired units pendant superheater tube wall temperature early warning optimal control method | |
| CN105605609B (en) | A kind of power plant boiler burning oxygen amount optimization method | |
| CN112664975B (en) | Air volume control method suitable for pulverized coal fired boiler | |
| CN107543199A (en) | A kind of pulverized-coal fired boiler online detection of primary air and burning optimization management system | |
| CN113266843A (en) | Combustion optimization method, system and device for coal-fired boiler | |
| CN201748468U (en) | Flue gas oxygen content control system of gas boiler | |
| CN109519960B (en) | Pulverized coal furnace combustion regulation and control method based on-line monitoring of oxygen content and carbon content in fly ash | |
| CN103486563B (en) | Supercritical once-through boiler capable of firing eastern Junggar coal | |
| CN111678167B (en) | Ultra-supercritical coal-fired unit boiler full-air-powder online control system | |
| CN110864855B (en) | Device and method for measuring air leakage rate of air preheater of utility boiler under medium and low load | |
| CN202216277U (en) | Automatic control device for a combustor type industrial boiler | |
| CN113760018A (en) | Power station boiler balanced combustion optimization method based on data driving | |
| CN207539925U (en) | Station boiler secondary air register adjusts wind control system automatically | |
| CN207600230U (en) | Sintering ignition furnace fuel control system | |
| CN202371749U (en) | Single-fire-nozzle air powder on-line accurate control system for pulverized coal boiler | |
| CN202141070U (en) | Combustion control device for gas injection boilers in oil fields | |
| CN204830009U (en) | A device for measuring buggy concentration and wind speed in pulverized coal boiler pipeline | |
| CN113032970A (en) | Method and system for measuring oxygen content of flue gas of power station | |
| CN102278821A (en) | Moving-grate-type boiler energy-saving constant-temperature automatic control method and device | |
| CN107869729A (en) | Station boiler secondary air register adjusts air control system and method automatically | |
| CN111413129A (en) | Boiler combustion efficiency on-line monitoring device | |
| CN214472527U (en) | Cold coal gas efficiency on-line analysis system | |
| CN214468585U (en) | Boiler wall-mounted air device based on combustor near-wall surface atmosphere soft measurement | |
| CN113639266B (en) | Fine combustion air distribution control system and method for four-corner tangential boiler |
Legal Events
| 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 | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |