CN111637442A - Configuration self-adaptive efficient flexible clean coal-fired power generation system and operation method - Google Patents
Configuration self-adaptive efficient flexible clean coal-fired power generation system and operation method Download PDFInfo
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- CN111637442A CN111637442A CN202010445476.1A CN202010445476A CN111637442A CN 111637442 A CN111637442 A CN 111637442A CN 202010445476 A CN202010445476 A CN 202010445476A CN 111637442 A CN111637442 A CN 111637442A
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- economizer
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F22—STEAM GENERATION
- F22D—PREHEATING, OR ACCUMULATING PREHEATED, FEED-WATER FOR STEAM GENERATION; FEED-WATER SUPPLY FOR STEAM GENERATION; CONTROLLING WATER LEVEL FOR STEAM GENERATION; AUXILIARY DEVICES FOR PROMOTING WATER CIRCULATION WITHIN STEAM BOILERS
- F22D1/00—Feed-water heaters, i.e. economisers or like preheaters
- F22D1/36—Water and air preheating systems
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
- B01D53/86—Catalytic processes
- B01D53/8621—Removing nitrogen compounds
- B01D53/8625—Nitrogen oxides
- B01D53/8631—Processes characterised by a specific device
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F22—STEAM GENERATION
- F22D—PREHEATING, OR ACCUMULATING PREHEATED, FEED-WATER FOR STEAM GENERATION; FEED-WATER SUPPLY FOR STEAM GENERATION; CONTROLLING WATER LEVEL FOR STEAM GENERATION; AUXILIARY DEVICES FOR PROMOTING WATER CIRCULATION WITHIN STEAM BOILERS
- F22D5/00—Controlling water feed or water level; Automatic water feeding or water-level regulators
- F22D5/26—Automatic feed-control systems
- F22D5/34—Applications of valves
Abstract
The invention discloses a configuration self-adaptive high-efficiency flexible clean coal-fired power generation system and an operation method thereof. Meanwhile, the cascade utilization of energy is realized by adjusting the flow ratio of the air preheater and the pre-economizer, and the energy utilization efficiency in a flexible operation mode is improved. The invention can be used for the flexibility modification, energy-saving emission-reduction modification and new unit design of the coal-fired power plant.
Description
Technical Field
The invention belongs to the field of coal-fired power generation, and particularly relates to a configuration self-adaptive efficient flexible clean coal-fired power generation system and an operation method.
Background
The main characteristics of energy resources in China are rich coal, poor oil and little gas, and in order to guarantee energy safety, coal is used as the main body of primary energy consumption in China for a long time in the future. Of these, over 50% of the coal (which proportion will also rise year by year) is used for power generation. The long-term goal of energy development in China is to promote energy production and consumption revolution and construct a clean, low-carbon, safe and efficient energy system. Therefore, the installed capacity of renewable energy power generation in China is rapidly increased. However, the time-varying characteristics of wind energy and solar energy generation are strong, and the problems of wind and light abandonment are severe due to the insufficient peak regulation capability of the power grid in China.
Therefore, the operation characteristics of the thermal system of the coal-fired power generating unit are changed from a steady-state working condition as a main mode and a frequent peak regulation as a main mode, and the thermal system is in a peak regulation operation process for a long time. Selective Catalytic Reduction (SCR) is the most widely used denitration technology in coal-fired power plants. However, the inlet flue gas temperature of the SCR denitration device is reduced at low load, so that the SCR denitration device deviates from a temperature operation section, and the flue gas denitration efficiency of the coal-fired power plant is greatly reduced. Therefore, development of a wide-load denitration coal-fired power generation system suitable for a flexible operation mode of a coal-fired power plant is urgently needed.
However, the existing system structure capable of realizing the wide-load denitration of the coal-fired power generation system has the problems of influencing the efficiency of the coal-fired power plant and the like.
Disclosure of Invention
In order to overcome the problems in the prior art, the invention aims to provide a configuration self-adaptive high-efficiency flexible clean coal-fired power generation system and an operation method thereof. Meanwhile, the cascade utilization of energy is realized by adjusting the flow ratio of the air preheater and the pre-economizer, and the energy utilization efficiency in a flexible operation mode is improved.
In order to achieve the purpose, the invention adopts the following technical scheme:
a configuration self-adaptive high-efficiency flexible clean coal-fired power generation system comprises an economizer 2 and an SCR denitration device 4 which are sequentially arranged in a flue of a boiler 1 along the flow direction of flue gas, wherein the rear flue of the SCR denitration device 4 is divided into two parallel separated flues, a first flue gas baffle 51 and an air preheater 53 are sequentially arranged on one side of the separated flue along the flow direction of the flue gas, and a second flue gas baffle 52, a first shunting pre-economizer 54 and a second shunting pre-economizer 55 are arranged on the other side of the separated flue along the flow direction of the flue gas;
the lower port of the economizer 2 is connected with the water outlet of the shunting first pre-economizer 54 through a second water supply regulating valve 302 and a first water supply regulating valve 301 through a pipeline; a pipeline between the second water supply regulating valve 302 and the first water supply regulating valve 301 is connected with a water wall water supply inlet through a fifth water supply regulating valve 305; the upper port of the economizer (2) is connected with a water-cooled wall water supply inlet through a third water supply regulating valve 303; the upper port of the economizer (2) is connected with the water outlet of the shunting first pre-economizer 54 through a fourth water supply regulating valve 304 and a sixth water supply regulating valve 306; the water-cooled wall water supply inlet is connected with the water outlet of the shunting first pre-economizer 54 through a seventh water supply regulating valve 307; the water outlet of the first shunting pre-economizer 54 is connected with the water outlet of the high-pressure heater group 6 through a ninth feed water regulating valve 309, is converged and then is connected with the water inlet of the first shunting pre-economizer 54 through an eighth feed water regulating valve 308; the water inlet of the first shunting pre-economizer 54 is connected with the water outlet of the second shunting pre-economizer 55; the water inlet of the second shunting pre-economizer 55 is connected with the water outlet of the water feeding pump 7 through a tenth water feeding regulating valve 310; the water inlet of the high-pressure heater group 6 is connected with the water outlet of the feed pump 7.
The area of the first flow-dividing pre-economizer 54 is 0.1 to 0.3 times of the area of the economizer 2.
The area of the first shunting pre-economizer 54 is 0.5 to 0.8 times that of the second shunting pre-economizer 55.
The first water supply regulating valve 301, the second water supply regulating valve 303, the third water supply regulating valve 303 and the fourth water supply regulating valve 304 are electric automatic regulating valves.
The operation method of the configuration self-adaptive flexible cleaning cooperative coal-fired power generation system is characterized in that part of feed water of the high-pressure heater group 6 is heated by the first shunt pre-economizer 54 and then is fed into the economizer 2, part of the feed water is directly fed into the economizer 2, the downstream and upstream relations between flue gas and feed water in the economizer (2) are changed by adjusting the regulating valve groups from the first feed regulating valve 301 to the seventh feed regulating valve 307, so that the inlet flue gas temperature of the SCR denitration device 4 is regulated to meet the requirement of the working temperature interval of the SCR denitration device 4, and the specific regulating method is that the inlet flue gas temperature of the SCR denitration device 4 is measured:
1) if the temperature of the flue gas at the inlet of the SCR denitration device 4 is measured to be higher than the highest working temperature, firstly closing the seventh water supply regulating valve 307, if the temperature of the flue gas at the inlet of the SCR denitration device 4 is still higher than the highest working temperature, closing the fourth water supply regulating valve 304, the fifth water supply regulating valve 305 and the sixth water supply regulating valve 306, and opening the first water supply regulating valve 301, the second water supply regulating valve 302 and the third water supply regulating valve 303, so that the feed water enters the economizer (2) from the lower port of the economizer (2) and then flows out from the upper port of the economizer (2) to enter a water-cooled wall, and at the moment, the flue gas in the economizer (2) and the feed water are in a countercurrent relationship; meanwhile, the opening degree of the first flue gas baffle 51 is increased, and the opening degree of the second flue gas baffle 52 is reduced, so that the outlet water temperature of the first shunting pre-economizer 54 is reduced;
2) if the measured inlet temperature of the SCR denitration device 4 is lower than the highest working temperature, gradually opening a fourth water supply regulating valve 304, a fifth water supply regulating valve 305 and a sixth water supply regulating valve 306, and gradually closing a first water supply regulating valve 301 and a third water supply regulating valve 303, so that the feed water enters the economizer (2) from the upper port of the economizer (2) and then flows out from the lower port of the economizer (2) to enter a water-cooled wall, and at the moment, the flue gas in the economizer (2) is in a forward flow relation with the feed water; if the temperature of the flue gas at the inlet of the SCR denitration device 4 is still lower than the lowest working temperature, gradually opening a No. seven water supply regulating valve 307, so that part of the water supply directly enters the water-cooled wall through a bypass; meanwhile, the opening degree of the first flue gas baffle 51 is reduced, and the opening degree of the second flue gas baffle 52 is increased, so that the outlet water temperature of the first shunting pre-economizer 54 is increased;
when the coal-fired power generation system needs to rapidly increase the load, the opening degree of a tenth water supply regulating valve 310 is increased, the opening degree of an eighth water supply regulating valve 308 is reduced, the opening degree of a ninth water supply regulating valve 309 is increased, the outlet water part of a water supply pump 7 is sent to a second shunting pre-economizer 55 through a bypass to be heated and then sent to a first shunting pre-economizer 54 to be heated, so that the steam extraction quantity of a steam turbine of a high-pressure heater group 6 is reduced, and the output power of the steam turbine is increased.
The working temperature range of the SCR denitration device 4 is 300-400 ℃;
the opening degrees of the first smoke baffle 51 and the second smoke baffle 52 are adjusted, and the operation target is that the smoke temperature at the smoke outlet is the lowest.
The smoke flow of the second smoke baffle 52 accounts for 20-40% of the total smoke flow.
The system can flexibly adjust the heat absorption distribution in the economizer, simultaneously realize the accurate control of the inlet temperature of the SCR denitration device, and simultaneously obtain the highest coal-fired power generation efficiency under the limitation of the denitration operation efficiency. The invention can be used for the flexibility modification, energy-saving emission-reduction modification and new unit design of the coal-fired power plant.
Compared with the prior art, the invention has the following advantages:
(1) the invention can enlarge the denitration operation interval of the SCR system and realize high-efficiency denitration under all working conditions;
(2) compared with the flue gas bypass technology, the invention can improve the boiler efficiency by 0.3-0.8%;
(3) the invention can realize the variable load operation of the coal-fired generator set with the load of more than 3 percent of rated load/minute, and simultaneously improves the power generation efficiency and the denitration efficiency of the coal-fired generator set during the rapid variable load operation.
Drawings
FIG. 1 is a schematic diagram of the system of the present invention.
FIG. 2 is a comparative graph of SCR inlet flue gas temperature for a coal-fired power generating unit.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
As shown in fig. 1, the configuration self-adaptive high-efficiency flexible clean coal-fired power generation system comprises an economizer 2 and an SCR denitration device 4 which are sequentially arranged in a flue of a boiler 1 along a flue gas flow direction, wherein a rear flue of the SCR denitration device 4 is divided into two parallel divided flues, a first flue gas baffle 51 and an air preheater 53 are sequentially arranged on one side of the divided flue along the flue gas flow direction, and a second flue gas baffle 52, a first shunting pre-economizer 54 and a second shunting pre-economizer 55 are arranged on the other side of the divided flue along the flue gas flow direction; the lower port of the economizer 2 is connected with the water outlet of the shunting first pre-economizer 54 through a second water supply regulating valve 302 and a first water supply regulating valve 301 through a pipeline; a pipeline between the second water supply regulating valve 302 and the first water supply regulating valve 301 is connected with a water wall water supply inlet through a fifth water supply regulating valve 305; the upper port of the economizer (2) is connected with a water-cooled wall water supply inlet through a third water supply regulating valve 303; the upper port of the economizer (2) is connected with the water outlet of the shunting first pre-economizer 54 through a fourth water supply regulating valve 304 and a sixth water supply regulating valve 306; the water-cooled wall water supply inlet is connected with the water outlet of the shunting first pre-economizer 54 through a seventh water supply regulating valve 307; the water outlet of the first shunting pre-economizer 54 is connected with the water outlet of the high-pressure heater group 6 through a ninth feed water regulating valve 309, is converged and then is connected with the water inlet of the first shunting pre-economizer 54 through an eighth feed water regulating valve 308; the water inlet of the first shunting pre-economizer 54 is connected with the water outlet of the second shunting pre-economizer 55; the water inlet of the second shunting pre-economizer 55 is connected with the water outlet of the water feeding pump 7 through a tenth water feeding regulating valve 310; the water inlet of the high-pressure heater group 6 is connected with the water outlet of the feed pump 7.
As a preferred embodiment of the invention, the area of the first flow splitting pre-economizer 54 is 0.1 to 0.3 times of the area of the economizer 2, so that the technical economy of the system is best, and the system efficiency is highest.
As a preferred embodiment of the present invention, the area of the first flow splitting pre-economizer 54 is 0.5 to 0.8 times the area of the second flow splitting pre-economizer 55, so that the technical economy of the system is best and the system efficiency is highest.
In a preferred embodiment of the present invention, the first water supply regulating valve 301, the second water supply regulating valve 303, the third water supply regulating valve 303 and the fourth water supply regulating valve 304 are electric automatic regulating valves, so that the regulating performance of the system can be improved.
The invention relates to an operation method of a configuration self-adaptive flexible cleaning cooperative coal-fired power generation system, wherein part of feed water of a high-pressure heater group 6 is heated by a first shunt pre-economizer 54 and then is fed into an economizer 2, part of the feed water is directly fed into the economizer 2, and the downstream and upstream relations between flue gas and feed water in the economizer (2) are changed by adjusting a regulating valve group from a first feed regulating valve 301 to a seventh feed regulating valve 307, so that the inlet flue gas temperature of an SCR denitration device 4 is regulated to meet the requirement of the working temperature interval of the SCR denitration device 4, and the specific regulating method comprises the following steps of measuring the inlet flue gas temperature of the SCR denitration device 4:
1) if the temperature of the flue gas at the inlet of the SCR denitration device 4 is measured to be higher than the highest working temperature, firstly closing the seventh water supply regulating valve 307, if the temperature of the flue gas at the inlet of the SCR denitration device 4 is still higher than the highest working temperature, closing the fourth water supply regulating valve 304, the fifth water supply regulating valve 305 and the sixth water supply regulating valve 306, and opening the first water supply regulating valve 301, the second water supply regulating valve 302 and the third water supply regulating valve 303, so that the feed water enters the economizer (2) from the lower port of the economizer (2) and then flows out from the upper port of the economizer (2) to enter a water-cooled wall, and at the moment, the flue gas in the economizer (2) and the feed water are in a countercurrent relationship; meanwhile, the opening degree of the first flue gas baffle 51 is increased, and the opening degree of the second flue gas baffle 52 is reduced, so that the outlet water temperature of the first shunting pre-economizer 54 is reduced;
2) if the measured inlet temperature of the SCR denitration device 4 is lower than the highest working temperature, gradually opening a fourth water supply regulating valve 304, a fifth water supply regulating valve 305 and a sixth water supply regulating valve 306, and gradually closing a first water supply regulating valve 301 and a third water supply regulating valve 303, so that the feed water enters the economizer (2) from the upper port of the economizer (2) and then flows out from the lower port of the economizer (2) to enter a water-cooled wall, and at the moment, the flue gas in the economizer (2) is in a forward flow relation with the feed water; if the temperature of the flue gas at the inlet of the SCR denitration device 4 is still lower than the lowest working temperature, gradually opening a No. seven water supply regulating valve 307, so that part of the water supply directly enters the water-cooled wall through a bypass; meanwhile, the opening degree of the first flue gas baffle 51 is reduced, and the opening degree of the second flue gas baffle 52 is increased, so that the outlet water temperature of the first shunting pre-economizer 54 is increased;
when the coal-fired power generation system needs to rapidly increase the load, the opening degree of a tenth water supply regulating valve 310 is increased, the opening degree of an eighth water supply regulating valve 308 is reduced, the opening degree of a ninth water supply regulating valve 309 is increased, the outlet water part of a water supply pump 7 is sent to a second shunting pre-economizer 55 through a bypass to be heated and then sent to a first shunting pre-economizer 54 to be heated, so that the steam extraction quantity of a steam turbine of a high-pressure heater group 6 is reduced, and the output power of the steam turbine is increased.
The working temperature range of the SCR denitration device 4 is 300-400 ℃;
the opening degrees of the first smoke baffle 51 and the second smoke baffle 52 are adjusted, and the operation target is that the smoke temperature at the smoke outlet is the lowest.
The flue gas flow of the second flue gas baffle 52 accounts for 20% -40% of the total flue gas flow, so that the boiler has the highest operation efficiency.
The system can switch the system configuration when the unit operates in different intervals, so that the temperature of the flue gas at the SCR inlet is maintained in the operation interval with the most suitable SCR denitration catalyst activity. As shown in FIG. 2, the system and the operation method of the invention are adopted by a certain coal-fired power generating unit, and the flue gas temperature at the SCR inlet can be controlled to be above 310 ℃ in the whole load rate interval of 0.3-1.0 by calculation.
Meanwhile, the invention can improve the efficiency of the coal-fired generator set, maintain the regular efficiency to be more than 92% under each load rate, and improve the boiler efficiency by 0.3% -0.8% compared with the flue gas bypass technology.
In addition, the invention can improve the climbing speed of the unit, a certain coal-fired power generating unit adopts the system and the operation method of the invention, the variable load speed can be improved to more than 3 percent of rated load/minute through calculation, and the denitration efficiency of the SCR device can be ensured by adjusting the opening degree of the related valve.
Claims (8)
1. A configuration self-adaptive high-efficiency flexible clean coal-fired power generation system is characterized in that: the boiler comprises an economizer (2) and an SCR denitration device (4) which are sequentially arranged in a flue of a boiler (1) along a flue gas flow direction, wherein a rear flue of the SCR denitration device (4) is divided into two parallel separated flues, a first flue gas baffle (51) and an air preheater (53) are sequentially arranged on one side of the separated flue along the flue gas flow direction, and a second flue gas baffle (52), a first shunting pre-economizer (54) and a second shunting pre-economizer (55) are arranged on the other side of the separated flue along the flue gas flow direction;
the lower port of the economizer (2) is connected with a water outlet of a shunting first pre-economizer (54) through a second water supply regulating valve (302) and a first water supply regulating valve (301) by pipelines; a pipeline between the second water supply regulating valve (302) and the first water supply regulating valve (301) is connected with a water supply inlet of the water wall through a fifth water supply regulating valve (305); the upper port of the economizer (2) is connected with a water-cooled wall water supply inlet through a third water supply regulating valve (303); the upper port of the economizer (2) is connected with the water outlet of the shunting first pre-economizer (54) through a fourth water supply regulating valve (304) and a sixth water supply regulating valve (306); a water-cooled wall water supply inlet is connected with a water outlet of a shunting first pre-economizer (54) through a seventh water supply regulating valve (307); the water outlet of the first shunting pre-economizer (54) is connected with the water outlet of the high-pressure heater group (6) through a ninth feed water regulating valve (309), is converged and then is connected with the water inlet of the first shunting pre-economizer (54) through an eighth feed water regulating valve (308); the water inlet of the first shunting pre-economizer (54) is connected with the water outlet of the second shunting pre-economizer (55); the water inlet of the second shunting pre-economizer (55) is connected with the water outlet of the water feeding pump (7) through a tenth water feeding regulating valve (310); the water inlet of the high-pressure heater group (6) is connected with the water outlet of the feed pump (7).
2. A configuration adaptive high efficiency flexible clean coal fired power generation system as defined in claim 1 wherein: the area of the first flow-dividing pre-coal economizer (54) is 0.1 to 0.3 times of the area of the coal economizer (2).
3. A configuration adaptive high efficiency flexible clean coal fired power generation system as defined in claim 1 wherein: the area of the first shunting pre-economizer (54) is 0.5 to 0.8 times that of the second shunting pre-economizer (55).
4. A configuration adaptive high efficiency flexible clean coal fired power generation system as defined in claim 1 wherein: the first water supply regulating valve (301), the second water supply regulating valve (303), the third water supply regulating valve (303) and the fourth water supply regulating valve (304) are electric automatic regulating valves.
5. A method of operating a configured adaptive flexible clean cooperative coal fired power generation system as defined in any one of claims 1 to 4, wherein: the method is characterized in that part of feed water of a high-pressure heater group (6) is heated by a shunting pre-economizer (54) and then is sent into the economizer (2), part of feed water is directly sent into the economizer (2), and the downstream and upstream relations between flue gas and feed water in the economizer (2) are changed by adjusting regulating valve groups from a feed water regulating valve (301) to a feed water regulating valve (307), so that the inlet flue gas temperature of an SCR denitration device (4) is regulated to meet the working temperature interval requirement of the SCR denitration device (4), and the specific regulating method comprises the following steps of measuring the inlet flue gas temperature of the SCR denitration device (4):
1) if the measured temperature of the flue gas at the inlet of the SCR denitration device (4) is higher than the highest working temperature of the SCR denitration device, firstly closing a seventh water supply regulating valve (307), if the temperature of the flue gas at the inlet of the SCR denitration device (4) is still higher than the highest working temperature of the SCR denitration device, closing a fourth water supply regulating valve (304), a fifth water supply regulating valve (305) and a sixth water supply regulating valve (306), and opening a first water supply regulating valve (301), a second water supply regulating valve (302) and a third water supply regulating valve (303), so that the feed water enters the economizer (2) from the lower port of the economizer (2) and then flows out from the upper port of the economizer (2) to enter a water-cooled wall, and at the moment, the flue gas in the economizer (2) and the; meanwhile, the opening degree of the first flue gas baffle (51) is increased, and the opening degree of the second flue gas baffle (52) is reduced, so that the water temperature at the outlet of the first shunting pre-economizer (54) is reduced;
2) if the inlet temperature of the SCR denitration device (4) is measured to be lower than the highest working temperature, gradually opening a fourth water supply regulating valve (304), a fifth water supply regulating valve (305) and a sixth water supply regulating valve (306), and gradually closing a first water supply regulating valve (301) and a third water supply regulating valve (303), so that the water supply enters the economizer (2) from the upper port of the economizer (2) and then flows out from the lower port of the economizer (2) to enter a water-cooled wall, and at the moment, the flue gas in the economizer (2) is in a forward flow relation with the water supply; if the flue gas temperature at the inlet of the SCR denitration device (4) is still lower than the lowest working temperature, gradually opening a No. seven water supply regulating valve (307) to ensure that part of the water supply directly enters a water-cooled wall through a bypass; meanwhile, the opening degree of the first flue gas baffle (51) is reduced, and the opening degree of the second flue gas baffle (52) is increased, so that the outlet water temperature of the first shunting pre-economizer (54) is increased;
when the coal-fired power generation system needs to rapidly increase the load, the opening of a ten water supply regulating valve (310) is increased, the opening of an eight water supply regulating valve (308) is reduced, the opening of a nine water supply regulating valve (309) is increased, the outlet water part of a water supply pump (7) is sent to a second shunting pre-economizer (55) through a bypass to be heated and then sent to a first shunting pre-economizer (54) to be heated, and therefore the steam extraction quantity of a steam turbine of a high-pressure heater group (6) is reduced, and the output power of the steam turbine is increased.
6. The method of claim 5, wherein the method comprises the steps of: the working temperature range of the SCR denitration device (4) is 300-400 ℃.
7. The method of claim 5, wherein the method comprises the steps of: the opening degrees of the first smoke baffle (51) and the second smoke baffle (52) are adjusted, and the operation target is that the smoke temperature at the smoke outlet is the lowest.
8. The method of claim 7, wherein the method comprises the steps of: the smoke flow of the second smoke baffle (52) accounts for 20-40% of the total smoke flow.
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| CN202010445476.1A CN111637442B (en) | 2020-05-24 | 2020-05-24 | Configuration self-adaptive efficient flexible clean coal-fired power generation system and operation method |
| PCT/CN2021/078893 WO2021238321A1 (en) | 2020-05-24 | 2021-03-03 | Efficient and flexible clean coal-fired power generation system having adaptive configuration, and operating method |
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| CN202010445476.1A CN111637442B (en) | 2020-05-24 | 2020-05-24 | Configuration self-adaptive efficient flexible clean coal-fired power generation system and operation method |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112524592A (en) * | 2020-11-30 | 2021-03-19 | 浙江浙能兰溪发电有限责任公司 | Method and system for linearly controlling constant design value of smoke discharge temperature of coal-fired boiler |
| WO2021238321A1 (en) * | 2020-05-24 | 2021-12-02 | 西安交通大学 | Efficient and flexible clean coal-fired power generation system having adaptive configuration, and operating method |
| WO2021238322A1 (en) * | 2020-05-24 | 2021-12-02 | 西安交通大学 | Efficient, clean and flexible cooperative coal-fired power generation system and operation method |
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| CN114797452B (en) * | 2022-04-18 | 2023-08-15 | 西安热工研究院有限公司 | Adjustable bypass injection device and adjusting method |
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| WO2021238321A1 (en) * | 2020-05-24 | 2021-12-02 | 西安交通大学 | Efficient and flexible clean coal-fired power generation system having adaptive configuration, and operating method |
| WO2021238322A1 (en) * | 2020-05-24 | 2021-12-02 | 西安交通大学 | Efficient, clean and flexible cooperative coal-fired power generation system and operation method |
| CN112524592A (en) * | 2020-11-30 | 2021-03-19 | 浙江浙能兰溪发电有限责任公司 | Method and system for linearly controlling constant design value of smoke discharge temperature of coal-fired boiler |
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| WO2021238321A1 (en) | 2021-12-02 |
| CN111637442B (en) | 2021-07-09 |
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