CN115289461A - Resistance uniformity processing structure and method for air distribution plate of circulating fluidized bed boiler - Google Patents
Resistance uniformity processing structure and method for air distribution plate of circulating fluidized bed boiler Download PDFInfo
- Publication number
- CN115289461A CN115289461A CN202210932921.6A CN202210932921A CN115289461A CN 115289461 A CN115289461 A CN 115289461A CN 202210932921 A CN202210932921 A CN 202210932921A CN 115289461 A CN115289461 A CN 115289461A
- Authority
- CN
- China
- Prior art keywords
- pressure
- air
- distribution plate
- air distribution
- umbrella
- 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
- F23C—METHODS OR APPARATUS FOR COMBUSTION USING FLUID FUEL OR SOLID FUEL SUSPENDED IN A CARRIER GAS OR AIR
- F23C10/00—Fluidised bed combustion apparatus
- F23C10/18—Details; Accessories
- F23C10/20—Inlets for fluidisation air, e.g. grids; Bottoms
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23C—METHODS OR APPARATUS FOR COMBUSTION USING FLUID FUEL OR SOLID FUEL SUSPENDED IN A CARRIER GAS OR AIR
- F23C10/00—Fluidised bed combustion apparatus
- F23C10/18—Details; Accessories
- F23C10/28—Control devices specially adapted for fluidised bed, combustion apparatus
-
- 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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E20/00—Combustion technologies with mitigation potential
- Y02E20/34—Indirect CO2mitigation, i.e. by acting on non CO2directly related matters of the process, e.g. pre-heating or heat recovery
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Fluidized-Bed Combustion And Resonant Combustion (AREA)
Abstract
The invention discloses a resistance uniformity processing structure and a processing method for an air distribution plate of a circulating fluidized bed boiler, and relates to the field of primary air distribution of the circulating fluidized bed boiler; the structure mainly comprises a circulating fluidized bed primary air distribution system, an on-line pressure monitoring system below an air distribution plate and an umbrella-shaped air curtain pressure flow regulation control system; after primary air enters the air chamber, bed materials above the air distribution plate enter a fluidized state through the air distribution plate and the air cap; the pressure online monitoring system divides the lower part of the air distribution plate into areas with uniform size in a honeycomb shape, and pressure values of the areas of the measuring points below the air distribution plate are monitored in real time; when the pressure deviation of each area below the air distribution plate reaches a set threshold value, the control system automatically adjusts the pressure flow of the umbrella-shaped air curtain according to the unbalanced pressure measurement result, and the blowing amount of the air curtain is increased in the area with larger pressure below the air distribution plate.
Description
Technical Field
The invention relates to the technical field of primary air chambers of boilers, in particular to a resistance uniformity processing structure and a resistance uniformity processing method for an air distribution plate of a circulating fluidized bed boiler.
Background
The circulating fluidized bed boiler has high combustion efficiency and low pollutant discharge, is suitable for burning inferior coal, becomes one of clean coal combustion technologies with the best commercialization degree at present, and is rapidly developed to the targets of higher steam parameters, higher capacity and lower discharge. One of the basic conditions for stable operation of the circulating fluidized bed boiler is to ensure that the material in the hearth is fully fluidized, which not only depends on the material characteristics, but also is related to the air distribution characteristics of the air distribution plate, and the uniformity of the air distribution is the key for ensuring the flow quality. At present, with the continuous increase of the capacity of a circulating fluidized bed boiler, the area of an air distribution plate is greatly increased, the pressure fluctuation in an air chamber is large, and the pressure distribution below the air distribution plate is large, so that the flow distribution among air hoods is uneven, a series of hidden trouble problems are brought to the long-term stable operation of the circulating fluidized bed boiler, such as serious abrasion of the air hoods, coking, high carbon content of ash residues and the like, and even the boiler is stopped.
When the pressure deviation of a primary air chamber of the conventional circulating fluidized bed boiler is large, the conventional circulating fluidized bed boiler mainly adopts the modes of air distribution plate structure modification, air cap modification and the like, and has the problems of high modification cost, irreversible modification mode, poor modification effect and the like.
Based on the above, the invention designs a resistance uniformity treatment structure and a treatment method for an air distribution plate of a circulating fluidized bed boiler, so as to solve the problems.
Disclosure of Invention
The invention aims to solve the problems in the prior art, monitor the pressure distribution below an air distribution plate on line in real time, adjust the pressure of a part with larger pressure deviation at any time and effectively improve the air distribution uniformity of an air distribution system of a circulating fluidized bed.
In order to achieve the purpose, the invention provides the following technical scheme: the resistance uniformity processing structure of the air distribution plate of the circulating fluidized bed boiler comprises a primary air distribution system of the circulating fluidized bed, an on-line pressure monitoring system below the air distribution plate and an umbrella-shaped air curtain pressure flow regulation control system; the circulating fluidized bed boiler primary air system consists of a primary air pipeline, a primary air chamber, an air distribution plate and an air cap, and bed materials above the air distribution plate enter a fluidized state through the air distribution plate and the air cap after primary air enters the primary air chamber; the pressure online monitoring system divides the lower part of the air distribution plate into areas with uniform size in a honeycomb shape, and pressure measuring points are installed in the areas, monitoring data are transmitted to the pressure online monitoring center and the pressure data real-time monitoring terminal in real time, and the pressure value of each measuring point area below the air distribution plate is monitored in real time; umbrella form air curtain pressure flow regulation control system by booster fan entry flow control valve, booster fan export flow control valve, umbrella form air curtain pressure flow control center, umbrella form air curtain spout constitutes, the part pressurized air by a wind pipe way extraction, spout by umbrella form air curtain spout after the booster fan pressure boost, reach the settlement threshold value when each regional pressure deviation in air distributor below, umbrella form air curtain pressure flow control center is according to the umbrella form air curtain pressure flow of unbalanced pressure measurement result automatically regulated, realize each regional pressure evenly distributed in air distributor below through adjusting the air curtain power.
The invention further provides a circulating fluidized bed primary air distribution system, an on-line pressure monitoring system below an air distribution plate and an umbrella-shaped air curtain pressure and flow regulation control system.
As a further scheme of the invention, the pressure online monitoring system divides the lower part of the air distribution plate into areas with uniform size in a honeycomb shape, pressure measuring points are installed, monitoring data are transmitted to a pressure data real-time monitoring terminal in real time, the pressure value of each measuring point area below the air distribution plate is monitored in real time, and when the measured value deviation of the pressure measuring points exceeds a set threshold value, the umbrella-shaped air curtain pressure flow adjusting control system is started through a control algorithm.
The umbrella-shaped air curtain pressure flow regulating and controlling system comprises a booster fan inlet flow regulating valve, a booster fan outlet flow regulating valve, an umbrella-shaped air curtain pressure flow control center and an umbrella-shaped air curtain nozzle, wherein part of boosted air extracted by a primary air pipeline is sprayed out from the umbrella-shaped air curtain nozzle after being boosted by the booster fan, when the pressure deviation of each area below the air distribution plate reaches a set threshold value, the umbrella-shaped air curtain pressure flow control center is started by the online pressure monitoring system below the air distribution plate through a control algorithm, the umbrella-shaped air curtain pressure flow control center automatically regulates the pressure flow of the umbrella-shaped air curtain in real time according to the unbalanced pressure measurement result, and the uniform distribution of the pressure of each area below the air distribution plate is realized by regulating the strength of the air curtain.
As a further scheme of the invention, after the gas flow in the umbrella-shaped air curtain pressure flow control central pipeline is reduced by the position with large pressure deviation, the gas flow is mixed with primary air of the circulating fluidized bed boiler in an air chamber and then flows through an air distribution plate and an air cap to uniformly fluidize bed materials.
The resistance uniformity treatment method for the air distribution plate of the circulating fluidized bed boiler comprises the following steps:
the method comprises the following steps: mounting a honeycomb-shaped uniform partition below the air distribution plate and then mounting pressure measuring points; in the operation process of the circulating fluidized bed boiler, the air distribution plate pressure online monitoring system measures the pressure below the air distribution plate after partitioning in real time and transmits the pressure to the control center of the pressure online monitoring system and the terminal of the pressure online monitoring system;
step two: when the pressure measurement value deviation of the air distribution plate pressure online monitoring system exceeds a set threshold value, the pressure online monitoring system control center starts the umbrella-shaped air curtain pressure flow control system; the umbrella-shaped air curtain pressure flow control system realizes the uniform distribution of the pressure of each area below the air distribution plate by adjusting the strength of the air curtain;
step three: after receiving an execution instruction of the air distribution plate pressure on-line monitoring system, the umbrella-shaped air curtain pressure flow regulation control system sends the air extracted from the primary air system to an umbrella-shaped air curtain nozzle needing pressure through a pipeline to form an umbrella-shaped air curtain to be sprayed into an air chamber, and the umbrella-shaped air curtain pressure flow regulation control system is used for reducing the pressure of a part with large pressure deviation below the air distribution plate, so that the pressure below the air distribution plate is uniformly distributed.
Compared with the prior art, the invention has the beneficial effects that:
1. the pressure distribution below the air distribution plate is monitored in real time on line, the pressure of the part with larger pressure deviation is adjusted at any time, and the air distribution uniformity of the air distribution system of the circulating fluidized bed is effectively improved.
2. According to the invention, the air quantity of the umbrella-shaped air curtain nozzle in each area can be adjusted at any time according to the pressure deviation of the air distribution plate pressure on-line monitoring system below the air distribution plate, and the primary air pressure deviation below the air distribution plate is changed, so that the pressure below the air distribution plate is uniformly distributed.
Drawings
FIG. 1 is a schematic view of the structural layout of resistance uniformity processing of air distribution plates of a circulating fluidized bed boiler according to the present invention, wherein the schematic view of an umbrella-shaped air curtain tuyere is shown in a partially enlarged view;
fig. 2 is a schematic view of arrangement of online monitoring points below the air distribution plate.
In the drawings, the components represented by the respective reference numerals are listed below:
the system comprises a booster fan inlet flow regulating valve 1, a booster fan 2, a booster fan outlet flow regulating valve 3, an umbrella-shaped air curtain pressure flow control center 4, an air cap 5, an umbrella-shaped air curtain nozzle 6, a primary air inlet 7, an online pressure monitoring terminal 8, an air chamber 9 and an online pressure monitoring center 10.
Detailed Description
Referring to fig. 1-2, the present invention provides a technical solution: the resistance uniformity processing structure of the air distribution plate of the circulating fluidized bed boiler comprises a primary air distribution system of the circulating fluidized bed, an on-line pressure monitoring system below the air distribution plate and an umbrella-shaped air curtain pressure flow regulation control system; the primary air system of the circulating fluidized bed boiler consists of a primary air pipeline, a primary air chamber 9, an air distribution plate and an air cap 5, and bed materials above the air distribution plate enter a fluidized state through the air distribution plate and the air cap 5 after primary air enters the primary air chamber 9; the pressure online monitoring system divides the lower part of the air distribution plate into areas with uniform size in a honeycomb shape, pressure measuring points are installed, monitoring data are transmitted to the pressure online monitoring center 10 and the pressure data real-time monitoring terminal in real time, and the pressure value of each measuring point area below the air distribution plate is monitored in real time; umbrella form air curtain pressure flow regulation control system by booster fan entry flow control valve 1, booster fan export flow control valve 3, umbrella form air curtain pressure flow control center 4, umbrella form air curtain spout 6 constitutes, the part pressurized air by the extraction of a wind pipeline, spout by umbrella form air curtain spout 6 after the booster fan pressure boost, reach the settlement threshold value when each regional pressure deviation in air distributor below, umbrella form air curtain pressure flow control center 4 is according to the umbrella form air curtain pressure flow of unbalanced pressure measurement result automatically regulated, realize each regional pressure evenly distributed in air distributor below through adjusting the air curtain power.
The invention further provides a circulating fluidized bed primary air distribution system, an on-line pressure monitoring system below an air distribution plate and an umbrella-shaped air curtain pressure and flow regulation control system.
As a further scheme of the invention, the pressure online monitoring system divides the lower part of the air distribution plate into areas with uniform size in a honeycomb shape, pressure measuring points are installed, monitoring data are transmitted to a pressure data real-time monitoring terminal in real time, the pressure value of each measuring point area below the air distribution plate is monitored in real time, and when the measured value deviation of the pressure measuring points exceeds a set threshold value, the umbrella-shaped air curtain pressure flow adjusting control system is started through a control algorithm.
As a further scheme of the invention, the umbrella-shaped air curtain pressure and flow regulation and control system is composed of a booster fan inlet flow regulation valve 1, a booster fan outlet flow regulation valve 3, an umbrella-shaped air curtain pressure and flow control center 4 and an umbrella-shaped air curtain nozzle 6, wherein part of boosted air extracted by a primary air pipeline is sprayed out from the umbrella-shaped air curtain nozzle 6 after being boosted by the booster fan, when the pressure deviation of each area below the air distribution plate reaches a set threshold value, the umbrella-shaped air curtain pressure and flow control center 4 is started by the online pressure monitoring system below the air distribution plate through a control algorithm, the umbrella-shaped air curtain pressure and flow control center 4 automatically regulates the umbrella-shaped air curtain pressure and flow in real time according to the unbalanced pressure measurement result, and the uniform distribution of the pressure of each area below the air distribution plate is realized by regulating the strength of the air curtain.
As a further proposal of the invention, after the gas flow in the pipeline of the umbrella-shaped air curtain pressure flow control center 4 is reduced by the position with large pressure deviation, the gas flow is mixed with the primary air of the circulating fluidized bed boiler in the air chamber 9 and then flows through the air distribution plate and the air cap 5 to lead the bed material to be uniformly fluidized.
The resistance uniformity treatment method for the air distribution plate of the circulating fluidized bed boiler comprises the following steps:
the method comprises the following steps: mounting a honeycomb-shaped uniform partition below the air distribution plate and then mounting pressure measuring points; in the operation process of the circulating fluidized bed boiler, the air distribution plate pressure online monitoring system measures the pressure below the air distribution plate after partitioning in real time and transmits the pressure to the control center of the pressure online monitoring system and the terminal of the pressure online monitoring system;
step two: when the deviation of the pressure measurement value of the air distribution plate pressure online monitoring system exceeds a set threshold value, the pressure online monitoring system control center starts the umbrella-shaped air curtain pressure flow control system; the umbrella-shaped air curtain pressure flow control system realizes the uniform distribution of the pressure of each area below the air distribution plate by adjusting the strength of the air curtain;
step three: after receiving an execution instruction of the air distribution plate pressure on-line monitoring system, the umbrella-shaped air curtain pressure flow regulating and controlling system sends the air extracted from the primary air system to an umbrella-shaped air curtain nozzle 6 with required pressure through a pipeline to form an umbrella-shaped air curtain to be sprayed into the air chamber 9, so that the pressure of the part with larger pressure deviation below the air distribution plate is reduced, and the pressure below the air distribution plate is uniformly distributed.
Claims (6)
1. Circulating fluidized bed boiler grid plate resistance homogeneity handles structure, its characterized in that: the device comprises a circulating fluidized bed primary air distribution system, an on-line pressure monitoring system below an air distribution plate and an umbrella-shaped air curtain pressure flow regulation control system; the primary air system of the circulating fluidized bed boiler consists of a primary air pipeline, a primary air chamber (9), an air distribution plate and an air cap (5), and bed materials above the air distribution plate enter a fluidized state through the air distribution plate and the air cap (5) after primary air enters the primary air chamber (9); the pressure online monitoring system divides the lower part of the air distribution plate into areas with uniform size in a honeycomb shape, pressure measuring points are installed, monitoring data are transmitted to a pressure online monitoring center (10) and a pressure data real-time monitoring terminal in real time, and the pressure value of the area of each measuring point below the air distribution plate is monitored in real time; umbrella form air curtain pressure flow regulation control system by booster fan entry flow control valve (1), booster fan export flow control valve (3), umbrella form air curtain pressure flow control center (4), umbrella form air curtain spout (6) constitute, the part pressurized air by the extraction of a wind pipeline, spout by umbrella form air curtain spout (6) after the booster fan pressure boost, reach the settlement threshold value when each regional pressure deviation in plate below, umbrella form air curtain pressure flow control center (4) are according to the umbrella form air curtain pressure flow of unbalanced pressure measurement result automatically regulated, realize each regional pressure evenly distributed below the plate below of the plate of the cloth through adjusting the air curtain power.
2. The circulating fluidized bed boiler grid plate resistance uniformity processing structure of claim 1, wherein: the system comprises a circulating fluidized bed primary air distribution system, an on-line pressure monitoring system below an air distribution plate and an umbrella-shaped air curtain pressure flow regulation control system.
3. The circulating fluidized bed boiler air distribution plate resistance uniformity processing structure of claim 2, characterized in that: the pressure on-line monitoring system divides the lower part of the air distribution plate into areas with uniform size in a honeycomb shape, pressure measuring points are installed, monitoring data are transmitted to a pressure data real-time monitoring terminal in real time, the pressure value of each measuring point area below the air distribution plate is monitored in real time, and when the measured value deviation of the pressure measuring points exceeds a set threshold value, the umbrella-shaped air curtain pressure flow adjusting control system is started through a control algorithm.
4. The circulating fluidized bed boiler air distribution plate resistance uniformity processing structure of claim 3, characterized in that: umbrella-shaped air curtain pressure flow regulation control system is by booster fan entry flow control valve (1), booster fan export flow control valve (3), umbrella-shaped air curtain pressure flow control center (4), umbrella-shaped air curtain spout (6) constitute, the part pressurized air by the extraction of wind pipeline once, spout by umbrella-shaped air curtain spout (6) after the booster fan pressure boost, reach the settlement threshold value when each regional pressure deviation in air distributor below, air distributor below pressure on-line monitoring system starts umbrella-shaped air curtain pressure flow control center (4) through control algorithm, umbrella-shaped air curtain pressure flow control center (4) are according to the real-time automatically regulated umbrella-shaped air curtain pressure flow of unbalanced pressure measurement result, realize each regional pressure evenly distributed in air distributor below through adjusting the air curtain power.
5. The circulating fluidized bed boiler grid plate resistance uniformity processing structure of claim 1, wherein: after the gas flow in the pipeline of the umbrella-shaped air curtain pressure flow control center (4) is reduced by the position with large pressure deviation, the gas flow is mixed with primary air of the circulating fluidized bed boiler in an air chamber (9) and then flows through an air distribution plate and an air cap (5) to uniformly fluidize bed materials.
6. The resistance uniformity treatment method of the air distribution plate of the circulating fluidized bed boiler is suitable for the resistance uniformity treatment structure of the air distribution plate of the circulating fluidized bed boiler disclosed by claims 1-5, and is characterized by comprising the following steps of:
the method comprises the following steps: mounting a honeycomb-shaped uniform partition below the air distribution plate and then mounting pressure measuring points; in the operation process of the circulating fluidized bed boiler, the pressure below the air distribution plate after the partition is measured in real time by the air distribution plate pressure online monitoring system and is transmitted to the pressure online monitoring system control center and the pressure online monitoring system terminal;
step two: when the deviation of the pressure measurement value of the air distribution plate pressure online monitoring system exceeds a set threshold value, the pressure online monitoring system control center starts the umbrella-shaped air curtain pressure flow control system; the umbrella-shaped air curtain pressure flow control system realizes the uniform distribution of the pressure of each area below the air distribution plate by adjusting the strength of the air curtain;
step three: after receiving an execution instruction of the air distribution plate pressure on-line monitoring system, the umbrella-shaped air curtain pressure flow adjusting and controlling system sends the air extracted from the primary air system to an umbrella-shaped air curtain nozzle (6) needing pressure through a pipeline to form an umbrella-shaped air curtain to be sprayed into an air chamber (9) for reducing the pressure of a part with larger pressure deviation below the air distribution plate, so that the pressure below the air distribution plate is uniformly distributed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210932921.6A CN115289461B (en) | 2022-08-04 | 2022-08-04 | Resistance uniformity treatment structure and treatment method for air distribution plate of circulating fluidized bed boiler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210932921.6A CN115289461B (en) | 2022-08-04 | 2022-08-04 | Resistance uniformity treatment structure and treatment method for air distribution plate of circulating fluidized bed boiler |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN115289461A true CN115289461A (en) | 2022-11-04 |
| CN115289461B CN115289461B (en) | 2023-07-28 |
Family
ID=83826335
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210932921.6A Active CN115289461B (en) | 2022-08-04 | 2022-08-04 | Resistance uniformity treatment structure and treatment method for air distribution plate of circulating fluidized bed boiler |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115289461B (en) |
Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1997015784A1 (en) * | 1995-10-20 | 1997-05-01 | Imatran Voima Oy | Method and apparatus for controlling the temperature of the bed of a bubbling bed boiler |
| JP2004132586A (en) * | 2002-10-09 | 2004-04-30 | Kobe Steel Ltd | Fluidized bed furnace |
| CN102506410A (en) * | 2011-11-15 | 2012-06-20 | 华北电力大学（保定） | Monitoring device for running state of circulating fluidized bed boiler in power station |
| CN205119041U (en) * | 2015-10-30 | 2016-03-30 | 东方电气集团东方锅炉股份有限公司 | Circulating fluidized bed boiler cloth wind system of even cloth wind all |
| CN205746810U (en) * | 2016-07-13 | 2016-11-30 | 神华集团有限责任公司 | Air-distribution device and CFBB |
| CN107202320A (en) * | 2017-06-16 | 2017-09-26 | 天津科技大学 | A kind of adjustable fluid bed even distributing wind system and its control system |
| US20180195714A1 (en) * | 2016-05-30 | 2018-07-12 | Guangdong University Of Technology | Circular fluidizing bed combustion system with uniform airflow distributing device |
| CN209763050U (en) * | 2019-04-28 | 2019-12-10 | 内蒙古电力(集团)有限责任公司内蒙古电力科学研究院分公司 | Multi-row hole variable flow lotus root type hood of circulating fluidized bed boiler |
| CN209840410U (en) * | 2019-04-02 | 2019-12-24 | 曲靖方园环保建材有限公司 | Energy-saving boiling hot-blast furnace of machinery coal feeding |
| KR20210091617A (en) * | 2020-01-14 | 2021-07-22 | 한국전력공사 | Automatic Calculation System and Method for Combustion reaction gas Distribution Diagram Plot of Fluidized Bed Boiler |
| CN216408944U (en) * | 2021-11-03 | 2022-04-29 | 内蒙古电力(集团)有限责任公司内蒙古电力科学研究院分公司 | Primary air chamber structure of circulating fluidized bed boiler with air inlet at two sides and guide plates |
| CN216667663U (en) * | 2021-10-16 | 2022-06-03 | 菏泽民生热力有限公司 | Air distribution device for circulating fluidized bed boiler |
-
2022
- 2022-08-04 CN CN202210932921.6A patent/CN115289461B/en active Active
Patent Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1997015784A1 (en) * | 1995-10-20 | 1997-05-01 | Imatran Voima Oy | Method and apparatus for controlling the temperature of the bed of a bubbling bed boiler |
| JP2004132586A (en) * | 2002-10-09 | 2004-04-30 | Kobe Steel Ltd | Fluidized bed furnace |
| CN102506410A (en) * | 2011-11-15 | 2012-06-20 | 华北电力大学（保定） | Monitoring device for running state of circulating fluidized bed boiler in power station |
| CN205119041U (en) * | 2015-10-30 | 2016-03-30 | 东方电气集团东方锅炉股份有限公司 | Circulating fluidized bed boiler cloth wind system of even cloth wind all |
| US20180195714A1 (en) * | 2016-05-30 | 2018-07-12 | Guangdong University Of Technology | Circular fluidizing bed combustion system with uniform airflow distributing device |
| CN205746810U (en) * | 2016-07-13 | 2016-11-30 | 神华集团有限责任公司 | Air-distribution device and CFBB |
| CN107202320A (en) * | 2017-06-16 | 2017-09-26 | 天津科技大学 | A kind of adjustable fluid bed even distributing wind system and its control system |
| CN209840410U (en) * | 2019-04-02 | 2019-12-24 | 曲靖方园环保建材有限公司 | Energy-saving boiling hot-blast furnace of machinery coal feeding |
| CN209763050U (en) * | 2019-04-28 | 2019-12-10 | 内蒙古电力(集团)有限责任公司内蒙古电力科学研究院分公司 | Multi-row hole variable flow lotus root type hood of circulating fluidized bed boiler |
| KR20210091617A (en) * | 2020-01-14 | 2021-07-22 | 한국전력공사 | Automatic Calculation System and Method for Combustion reaction gas Distribution Diagram Plot of Fluidized Bed Boiler |
| CN216667663U (en) * | 2021-10-16 | 2022-06-03 | 菏泽民生热力有限公司 | Air distribution device for circulating fluidized bed boiler |
| CN216408944U (en) * | 2021-11-03 | 2022-04-29 | 内蒙古电力(集团)有限责任公司内蒙古电力科学研究院分公司 | Primary air chamber structure of circulating fluidized bed boiler with air inlet at two sides and guide plates |
Non-Patent Citations (2)
| Title |
|---|
| 孟繁明;信晓颖;薛志鹏;陈剑;: "300 MW循环流化床锅炉两侧进风风室风压均布分析及优化", 中国电力, no. 05, pages 97 - 100 * |
| 郎丽萍: "保证循环流化床锅炉布风均匀的措施", 锅炉制造, no. 02, pages 8 - 9 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN115289461B (en) | 2023-07-28 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109603525A (en) | A kind of denitration subregion spray ammonia control method based on unevenness judgement | |
| CN103939939A (en) | Digitized combustion control and optimization method and system for pulverized coal boiler | |
| CN109373347A (en) | A kind of coal-supplying amount optimal control method of unit bypass heat supply | |
| CN105318349B (en) | Fired power generating unit Primary air flow control method based on power grid frequency modulation peak regulation | |
| CN110038426A (en) | A kind of frequency modulation type is intelligent to control ammonia system and method | |
| CN207317545U (en) | A kind of kiln shares flue gas system | |
| CN109882882A (en) | Improve low NOXThe method and system of the adherent reducing atmosphere of burning boiler side wall | |
| CN113390099B (en) | Coordination control method under coal-fired cogeneration unit self-adaptive BTU | |
| CN110404650B (en) | Coal grinding system and method for safely and efficiently preparing lignite | |
| CN103418228B (en) | Intelligent sncr denitration system | |
| CN115289461A (en) | Resistance uniformity processing structure and method for air distribution plate of circulating fluidized bed boiler | |
| CN117109024A (en) | Coal-fired unit ultra-low load stable operation pulverizing system and control method | |
| CN107831656A (en) | A kind of fired power generating unit coordinated control system energy saving optimizing technology | |
| CN207701225U (en) | A kind of gas turbine fuel calorific value adjusting apparatus | |
| CN206831550U (en) | A kind of compact pulverized coal distributor | |
| CN113464931A (en) | Operation control system and method for plasma ignition pulverized coal burner | |
| CN214840781U (en) | Primary air powder amount control system suitable for peak regulation | |
| CN115183570A (en) | Mineral powder vertical mill system and automatic control method | |
| CN114719242A (en) | Method for controlling main steam pressure of circulating fluidized bed boiler directly doped with wet sludge | |
| CN110553241A (en) | temperature adjusting method for coal-fired thermal generator set of large power station boiler | |
| CN211424432U (en) | Device for blowing soot by using bypass flue gas | |
| CN210179664U (en) | Automatic flue gas temperature adjusting device | |
| CN103453665A (en) | Automatic temperature regulation control method and system for burner industrial boiler | |
| CN208703906U (en) | A kind of biomass combustion continuous regulating mechanism | |
| CN209309998U (en) | It is a kind of with coal gas be sealing coking tail gas burning process device |
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 |