CN206094003U - Realize that ultralow load safety ring of coal fired boiler protects degree of depth peak regulation device of operation - Google Patents
Realize that ultralow load safety ring of coal fired boiler protects degree of depth peak regulation device of operation Download PDFInfo
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- CN206094003U CN206094003U CN201621095179.4U CN201621095179U CN206094003U CN 206094003 U CN206094003 U CN 206094003U CN 201621095179 U CN201621095179 U CN 201621095179U CN 206094003 U CN206094003 U CN 206094003U
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- scr denitration
- economizer
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Abstract
The utility model provides a realize that ultralow load safety ring of coal fired boiler protects degree of depth peak regulation device of operation mainly includes boiler, economizer and SCR denitration device, and the flue gas that the boiler came out is sent to SCR denitration device via the flue behind the economizer, boiler lower part inboard sets up the auxiliary combustion device, set up auxiliary heating device on economizer and SCR denitration device's the connection flue, the auxiliary combustion device is delivered to through the connecting line all the way in the fuel source, and auxiliary heating device is delivered to on another way. The utility model discloses designed the ultralow load safety ring of coal fired boiler in the device and protected auxiliary combustion device and the auxiliary heating device who moves, realized that coal fired boiler protects the operation by 40% low load operation to 25% ultralow load degree of depth peak regulation safety ring. Through combining together technique of surely firing and low -load natural gas heating SCR entry flue -gas temperature technique in the boiler low -load natural gas stove, realize boiler degree of depth peak regulation.
Description
Technical field
This utility model is related to a kind of depth peak adjusting device for realizing the operation of coal-burning boiler ultra-low load safety and environmental protection, belongs to
Energy-saving and environmental protection technical field, it is adaptable to the depth peak regulation of coal-burning boiler and environmentally friendly overall process, the ultralow row of full load
Put.
Background technology
With energy-saving and emission-reduction work lasting propulsion, coal-burning power plant to energy-saving and environment protection emission requirement also more and more
It is high.At present, because electric energy is superfluous, electricity market in drop electricity price, drop using hour, low battery rate of increase, underload rate it is " double
Drop is double low " state, fired power generating unit is forced long-term underrun or frequently carries out depth peak regulation to meet the requirement of electrical network, conventional
The not combustion-supporting minimum steady combustion load of the lower boiler of design is 40% rated load, while SCR denitration equipment is in the rated load of boiler 60%
Hereinafter cannot put into operation, it is impossible to meet the requirement of environmentally friendly minimum discharge standard, how to ensure boiler ultra-low load flameholding, environmental protection
Equipment bringing normally into operation, realizes that depth peak regulation that coal-burning boiler safety and environmental protection runs becomes that thermal power plant faces in the urgent need to address
Global question.
In order to realize the depth peak regulation that coal-burning boiler ultra-low load safety and environmental protection runs, it is necessary to develop a kind of new skill
Art, meets coal-burning boiler and stably burns under ultra-low load state, SCR denitration equipment overall process, full load operation, is meeting electricity
Environmentally friendly minimum discharge is realized in the case of net demand, country and place correlation environmental requirement is reached.
The content of the invention
The purpose of this utility model is to provide a kind of depth peak regulation for realizing the operation of coal-burning boiler ultra-low load safety and environmental protection
Device, which solves coal-burning boiler and stably burns under ultra-low load state, and SCR denitration equipment overall process, complete negative
Lotus is put into operation, and environmentally friendly minimum discharge is realized in the case where electrical network demand is met, and reaches country and place correlation environmental requirement.
Concrete technical scheme of the present utility model is as follows：
It is a kind of to realize the depth peak adjusting device that coal-burning boiler ultra-low load safety and environmental protection runs, mainly including boiler, province's coal
Device and SCR denitration equipment, boiler flue gas out is sent to SCR denitration equipment, the lower portion thereof Jing after economizer via flue
Inner side to arrange and arrange assisted heating device, fuel on the connection flue of assisted combustion device, the economizer and SCR denitration equipment
Source Jing connecting lines deliver to all the way assisted combustion device, and assisted heating device is delivered on another road.
It is of the present utility model it is further design be：
Effusion meter, stop valve and pressure-regulating valve are sequentially provided with assisted combustion device and the connecting line of fuels sources.
Stop valve, effusion meter and pressure-regulating valve are sequentially provided with assisted heating device and the connecting line of fuels sources.
Assisted combustion device and assisted heating device are respectively arranged with control system.
Coal-burning boiler ultra-low load is referred in rated load 25%-40% loading condiction.
Fuels sources are natural gas, methanol, micro- oil plus pure oxygen.
Assisted combustion device and assisted heating device are constituted by lighter, burner and controller.
This utility model has the advantage that compared to existing technology：
1st, devise in this utility model device coal-burning boiler ultra-low load safety and environmental protection operation assisted combustion device and
Assisted heating device, realizes that coal-burning boiler is run by 40% underrun to 25% ultra-low load depth peak regulation safety and environmental protection.It is logical
Cross and stable combustion technology in boiler at low load natural gas stove and underload natural gas heating SCR inlet flue-gas temperature technology combine,
Realize boiler for deeply peak regulation.
2nd, assisted combustion device is combustion-supporting to boiler fuel in this utility model, realizes boiler more than 25% rated load
Stable burning.
3rd, to flue gas, flue gas increasing extent of temperature is 0-40 DEG C to assisted heating device, realize SCR denitration equipment overall process,
Full load puts into operation.
4th, environmentally friendly minimum discharge is realized in the case where electrical network demand is met, country and place correlation environmental requirement is reached.
Description of the drawings
Fig. 1 is this utility model device schematic flow sheet.
In figure, 1- boilers；2- economizers；3- assisted heating devices；4-SCR denitration devices；5- fuels sources；6th, 11- flows
Meter；7th, 10- stop valves；8th, 12- pressure-regulating valves；9- assisted combustion devices.
Specific embodiment
Below in conjunction with the accompanying drawings, structure of the present utility model and operation principle are further illustrated.
As shown in figure 1, of the present utility model realize the depth peak adjusting device that coal-burning boiler ultra-low load safety and environmental protection runs,
The device mainly includes boiler 1, economizer 2 and SCR denitration equipment 4, and the flue gas out of boiler 1 is Jing after economizer 2, then process sets
The assisted heating device 3 put on the connection flue of economizer 2 and SCR denitration equipment 4 is heated, and reaches SCR denitration equipment 4
The flue-gas temperature scope of bringing normally into operation, is then sent to SCR denitration equipment 4；The lower inside of boiler 1 is provided with assisted combustion device 9,
The fuel of boiler 1 is carried out combustion-supporting, in the case of ultra-low load, boiler fuel combustion not exclusively fires baking, flue-gas temperature compared with
It is low, full combustion of fuel is made by assisted combustion device 9.
The device course of work is divided into boiler, and surely combustion and SCR denitration equipment overall process, full load run two parts, wherein
Assisted combustion device 9 and assisted heating device 3 are provided with control system, for the control of stream oriented device.Fuel needed for the device
The Fuel Selection natural gas in source 5, methanol or micro- oil and oxygen mix etc., a part of fuel from fuels sources 5 sequentially passes through stream
Assisted combustion device 9 is sent into after gauge 6, stop valve 7, the regulation of pressure-regulating valve 8, combustion-supporting, realization is carried out to the fuel of boiler 1
Boiler 1 stably burns under the ultra-low load operating mode more than rated load 25%-40%.
Another part fuel from fuels sources 5 send after stop valve 10, effusion meter 11, the regulation of pressure-regulating valve 12
Enter assisted heating device 3, the flue gas from economizer is heated, the increasing extent of temperature of flue gas is 0-40 DEG C, true by adjusting
Protect the entrance flue gas temperature of SCR denitration equipment 4 to control in scope of design, to ensure SCR denitration equipment overall process, full load input
Operation, realizes that coal-burning boiler ultra-low load safety and environmental protection runs.
Claims (7)
1. it is a kind of to realize the depth peak adjusting device that coal-burning boiler ultra-low load safety and environmental protection runs, mainly including boiler, economizer
With SCR denitration equipment, boiler flue gas out is sent to SCR denitration equipment Jing after economizer via flue, it is characterised in that institute
Auxiliary is arranged on the connection flue for stating lower portion thereof inner side setting assisted combustion device, the economizer and SCR denitration equipment to add
Thermal, fuels sources Jing connecting line delivers to all the way assisted combustion device, and assisted heating device is delivered on another road.
2. device according to claim 1, it is characterised in that on the assisted combustion device and the connecting line of fuels sources according to
It is secondary to be provided with effusion meter, stop valve and pressure-regulating valve.
3. device according to claim 2, it is characterised in that on the assisted heating device and the connecting line of fuels sources according to
It is secondary to be provided with stop valve, effusion meter and pressure-regulating valve.
4. device according to claim 3, it is characterised in that the assisted combustion device and assisted heating device are respectively provided with
There is control system.
5. according to the arbitrary described device of claim 1-4, it is characterised in that the coal-burning boiler ultra-low load is referred to specified negative
Lotus 25%-40% loading condictions.
6. device according to claim 5, it is characterised in that the fuels sources are natural gas, methanol or micro- oil plus pure oxygen.
7. device according to claim 1, it is characterised in that the assisted combustion device and assisted heating device are by igniting
Device, burner and controller composition.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621095179.4U CN206094003U (en) | 2016-09-30 | 2016-09-30 | Realize that ultralow load safety ring of coal fired boiler protects degree of depth peak regulation device of operation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621095179.4U CN206094003U (en) | 2016-09-30 | 2016-09-30 | Realize that ultralow load safety ring of coal fired boiler protects degree of depth peak regulation device of operation |
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| Publication Number | Publication Date |
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| CN206094003U true CN206094003U (en) | 2017-04-12 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201621095179.4U Active CN206094003U (en) | 2016-09-30 | 2016-09-30 | Realize that ultralow load safety ring of coal fired boiler protects degree of depth peak regulation device of operation |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107255269A (en) * | 2017-06-07 | 2017-10-17 | 国电科学技术研究院 | Station boiler system and station boiler integrate the method that gasification of biomass afterburning improves afterbody cigarette temperature |
| CN108087904A (en) * | 2017-12-01 | 2018-05-29 | 重庆富燃科技股份有限公司 | The method of boiler whole process denitration |
| CN109705920A (en) * | 2019-01-22 | 2019-05-03 | 哈尔滨锅炉厂有限责任公司 | Gasification of biomass couples coal unit power generator |
| CN109966915A (en) * | 2019-03-29 | 2019-07-05 | 北京国电龙源环保工程有限公司 | A kind of gasification of biomass coupling coal-burning boiler full load SCR denitration system and process |
-
2016
- 2016-09-30 CN CN201621095179.4U patent/CN206094003U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107255269A (en) * | 2017-06-07 | 2017-10-17 | 国电科学技术研究院 | Station boiler system and station boiler integrate the method that gasification of biomass afterburning improves afterbody cigarette temperature |
| CN108087904A (en) * | 2017-12-01 | 2018-05-29 | 重庆富燃科技股份有限公司 | The method of boiler whole process denitration |
| CN108087904B (en) * | 2017-12-01 | 2024-04-19 | 重庆富燃科技股份有限公司 | Method for denitration of boiler in whole course |
| CN109705920A (en) * | 2019-01-22 | 2019-05-03 | 哈尔滨锅炉厂有限责任公司 | Gasification of biomass couples coal unit power generator |
| CN109966915A (en) * | 2019-03-29 | 2019-07-05 | 北京国电龙源环保工程有限公司 | A kind of gasification of biomass coupling coal-burning boiler full load SCR denitration system and process |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 210046 Qixia, Jiangsu Province, Wonderland Road, No. 10, Patentee after: GUODIAN SCIENCE AND TECHNOLOGY RESEARCH INSTITUTE Co.,Ltd. Address before: 210046 Qixia, Jiangsu Province, Wonderland Road, No. 10, Patentee before: Guodian Science and Technology Research Institute |
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| CP01 | Change in the name or title of a patent holder | ||
| CP03 | Change of name, title or address |
Address after: 210023 fairyland Road, Qixia District, Nanjing, Jiangsu Province, No. 10 Patentee after: National Energy Group Science and Technology Research Institute Co.,Ltd. Address before: 210046 fairyland Road, Qixia District, Nanjing, Jiangsu Province, No. 10 Patentee before: GUODIAN SCIENCE AND TECHNOLOGY RESEARCH INSTITUTE Co.,Ltd. |
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| CP03 | Change of name, title or address | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20230329 Address after: 210031 No. 10, Pudong Road, Pukou District, Jiangsu, Nanjing Patentee after: GUODIAN ENVIRONMENTAL PROTECTION RESEARCH INSTITUTE Co.,Ltd. Patentee after: National Energy Group Science and Technology Research Institute Co.,Ltd. Address before: 210023 No. 10 Xianjing Road, Qixia District, Nanjing City, Jiangsu Province Patentee before: National Energy Group Science and Technology Research Institute Co.,Ltd. |
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