CN107023819A - Low low-level (stack-gas) economizer Two-way Cycle heating system and Two-way Cycle heating means - Google Patents
Low low-level (stack-gas) economizer Two-way Cycle heating system and Two-way Cycle heating means Download PDFInfo
- Publication number
- CN107023819A CN107023819A CN201710365111.6A CN201710365111A CN107023819A CN 107023819 A CN107023819 A CN 107023819A CN 201710365111 A CN201710365111 A CN 201710365111A CN 107023819 A CN107023819 A CN 107023819A
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- water
- low
- stack
- gas
- economizer
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Classifications
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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
- F22D1/003—Feed-water heater systems
-
- 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
A kind of low low-level (stack-gas) economizer Two-way Cycle heating system, belongs to field of energy-saving technology, and it is included into stove wind heating system, it is characterized in that also including condensation water heating system；Stove wind heating system is connected to low low-level (stack-gas) economizer with condensation water heating system by booster pump and water regulating valve.The present invention realizes heating boiler wind pushing temperature and heat-setting water system while can reducing electric precipitation inlet flue gas temperature, realize safety and stability, the purpose applied waste heat more.
Description
Technical field
The invention belongs to power-saving technology, particularly flue gas in power station boiler heat recovery technology field.
Background technology
With country to energy-conserving and environment-protective work pay attention to day by day, thus for improve boiler thermal output it is increasingly urgent, wherein profit
It is one of maximally effective approach with boiler exhaust gas waste heat.Heat loss due to exhaust gas is decided by exhaust gas temperature and exhaust smoke level.Boiler model one
It is fixed, what exhaust smoke level was to determine.
Flue gas heat loss is mostly reduced by reducing exhaust gas temperature at present.Research shows that boiler smoke temperature is often reduced
15~20 DEG C can improve boiler thermal output 1%, therefore reduction boiler smoke temperature turns into an important way of boiler energy-saving
Footpath.
Generation current factory reduce exhaust gas temperature, and Mist heat recovering form be independent heat-setting water or
Joint steam air heater heating First air, Secondary Air, it is impossible to which rationally using fume afterheat, and operation has certain potential safety hazard, heat
Amount wastes serious, and shortage of heat is caused sometimes.
The content of the invention
It is an object of the present invention to provide safety and stability, a kind of low temperature of simple to operate, reasonable utilization boiler tail flue gas waste heat
The double heating circulation systems of economizer and its method.It improves condensing water temperature while First air and Secondary Air is heated.
A kind of low low-level (stack-gas) economizer Two-way Cycle heating means, it is characterized in that using boiler tail flue gas waste heat to entering stove wind system
System and the heating of heat-setting water system.
A kind of low low-level (stack-gas) economizer Two-way Cycle heating system, including enter stove wind heating system, it is characterized in that also including condensing
Water heating system；Stove wind heating system is connected to low temperature by booster pump and water regulating valve with condensation water heating system and saves coal
Device.
It is described enter stove wind heating system include vapor-water heat exchanger, warm-air drier, secondary warm-air drier, an air preheater, vapour
The discharge pipe of water- to-water heat exchanger is connected in parallel once warm-air drier, secondary warm-air drier；No. one time warm-air drier, secondary warm-air drier are all connected with sky
Air preheater, air preheater connection low-level (stack-gas) economizer；
Tunnel inlet where warm-air drier, a secondary warm-air drier is equipped with where regulating valve, warm-air drier, a secondary warm-air drier
Ducting outlet be provided with ducting outlet temperature sensor,
The condensation water heating system includes vapor-water heat exchanger, water water- to-water heat exchanger, water compensating valve, temperature sensor, water water- to-water heat exchanger
Air inlet connect the air outlet of vapor-water heat exchanger, the delivery port of water water- to-water heat exchanger connects the water return outlet of condensate system, this time
Return water temperature sensor is installed in water lines；The water inlet of water water- to-water heat exchanger connects condensate system by condensing water regulating valve
Delivery port, flow control valve is installed on the water inlet pipe of water water- to-water heat exchanger, the air outlet of water water- to-water heat exchanger is connected to be added into stove wind
The wind pipe of the Secondary Air of hot systems；Moisturizing motor-driven valve is installed between condensate and circulating water line.
The flue outlet of the low low-level (stack-gas) economizer is provided with stack outlet temperature sensor.
Present invention additionally comprises controller, the condensate inlet pipeline, which is installed, condenses water regulating valve, and water return pipeline is installed back
Water temperature sensor, installs moisturizing motor-driven valve additional for circulation moisturizing between condensate and circulating water line.Recirculated water side is low
Flue outlet mounting temperature sensor where booster pump, low-level (stack-gas) economizer, low-level (stack-gas) economizer import peace are installed in warm economizer import
Regulating valve is filled, backwater, which enters, installs ducting outlet mounting temperature sensor where regulating valve, warm-air drier additional before steam air heater.Low temperature saves coal
Device, which exports directly to install additional with warm-air drier UNICOM, installs liquid level gauge on vapor-water heat exchanger, vapor-water heat exchanger, vapor-water heat exchanger blowdown peace
Fill blowdown motor-driven valve.
The return water temperature sensor signal output end is connected with controller signals receiving terminal, controller signals output end with
Condense the connection of water regulating valve signal receiving end.
Stack outlet temperature sensor signal output end where low low-level (stack-gas) economizer is connected with controller signals receiving terminal, is controlled
Device signal output part processed is connected with low-level (stack-gas) economizer inlet adjusting valve signal receiving terminal.
Ducting outlet temperature sensor signal output end where warm-air drier is connected with controller signals receiving terminal, controller letter
Number output end is connected with into steam air heater regulating valve signal receiving end.
Vapor-water heat exchanger liquid level gauge signal output part is connected with controller signals receiving terminal, controller signals output end and vapour
Water- to-water heat exchanger blowdown motor-driven valve signal receiving end is connected.
Low low-level (stack-gas) economizer Two-way Cycle is heated into stove wind and condensate system, including low adding system, low low-level (stack-gas) economizer, warm
Wind device, vapor-water heat exchanger, water water- to-water heat exchanger, water charging system, draw condensate line as water inlet pipe from one low adding system entrance
Connected with water water- to-water heat exchanger, then return to another low adding system outlet；Condensate pipe pass is directly connected to heat medium water all the way
System simultaneously carries out moisturizing by motor-driven valve and pipeline, and heating agent water system installs booster pump with low low-level (stack-gas) economizer UNICOM as low
The water inlet of warm economizer, backwater converges to supercharging pump inlet after vapor-water heat exchanger respectively enters steam air heater and water water- to-water heat exchanger
Circulated.
The present invention has following beneficial effects：
（1）Traditional surplus heat of power plant recovery system utilizes the temperature for absorbing boiler tail flue gas waste-heat First air and Secondary Air,
The temperature of the present invention not only heating First air and Secondary Air, and by boiler tail waste heat heat-setting water.
（2）Traditional surplus heat of power plant recovery system utilizes the temperature for absorbing boiler tail flue gas waste-heat First air and Secondary Air
Degree, when exhaust gas temperature is reduced, recirculated water absorbs heat First air and the heat of Secondary Air is inadequate；Present invention increase carbonated drink is changed
Hot device heats the air themperature into steam air heater to heat cycles water, can avoid shortage of heat.
（3）The present invention realizes heating boiler wind pushing temperature and heat-setting water while can reducing electric precipitation inlet flue gas temperature
System, realizes safety and stability, the purpose applied waste heat more.
（4）Moisturizing of the present invention is automatically replenished using water pressure is condensed more than heating agent water pressure, is not required to increase small pump.
（5）Connection and reasonable arrangement causes Mist heat recovering to make full use of, and has both improved First air and Secondary Air temperature, heats again
Condensed water in boiler, saves coal consumption.
（6）Condensate side of the present invention is entered backwater and used across level（One low plus preceding water intaking, another low plus outlet backwater）Pressure
Power is poor, and condensate can automatic running, it is not necessary to install booster pump.
（7）Heat medium water of the present invention and condensate system are arranged apart so that heat medium water water quality requirement is relatively low, from without influenceing to condense
Water water quality.
Brief description of the drawings
Fig. 1 is the structural representation of the present invention.
In figure, 1, water water- to-water heat exchanger, 2, booster pump, 3, low low-level (stack-gas) economizer, 4, vapor-water heat exchanger, 5, a steam air heater,
6th, secondary steam air heater, 7, condensing water flow regulating valve, 8, water water- to-water heat exchanger outlet heating agent water temperature sensor, 9, water water- to-water heat exchanger
Export condensing water temperature sensor, 10, low-level (stack-gas) economizer entrance water regulating valve, 11, vapor-water heat exchanger enter steam control valve, 12,
Steam air heater entrance water regulating valve, 13, a steam air heater ducting outlet air temperature sensor, 14, secondary steam air heater enters
Saliva adjustable valve, 15, secondary steam air heater ducting outlet air temperature sensor, 16, low low-level (stack-gas) economizer exit gas temperature
Sensor, 17, moisturizing motor-driven valve, 18, air preheater, 19, electric cleaner.
Embodiment
The low-level (stack-gas) economizer Two-way Cycle of the present invention is heated into stove wind and condensate system furtherly below in conjunction with the accompanying drawings
It is bright.
As shown in figure 1, low-level (stack-gas) economizer Two-way Cycle of the present invention is heated into stove wind and condensate system, including water water- to-water heat exchanger
1st, booster pump 2, low low-level (stack-gas) economizer 3, vapor-water heat exchanger 4, steam air heater 5, secondary steam air heater 6, a condensing water flow regulating valve
7th, water water- to-water heat exchanger outlet heating agent water temperature sensor 8, water water- to-water heat exchanger outlet condensing water temperature sensor 9, low temperature save coal
Device entrance water regulating valve 10, vapor-water heat exchanger enter steam control valve 11, steam air heater entrance water regulating valve 12, a warm wind
Device ducting outlet air temperature sensor 13, secondary steam air heater entrance water regulating valve 14, secondary steam air heater ducting outlet air
Temperature sensor 15, low low-level (stack-gas) economizer exit gas temperature sensor 16, moisturizing motor-driven valve 17.
The condensate delivery port of water water- to-water heat exchanger 1 is provided with temperature sensor 9, the heat medium water delivery port of water water- to-water heat exchanger 1
Temperature sensor 8 is installed,
Water water- to-water heat exchanger 1 connects low low-level (stack-gas) economizer 3 by booster pump 2, regulating valve 10 and pipeline；Low low-level (stack-gas) economizer 3 passes through
Pipeline and electric cleaner 19 are connected, and low low-level (stack-gas) economizer exit gas temperature is provided with the output channel of low low-level (stack-gas) economizer 3
Sensor 16；
Low low-level (stack-gas) economizer 3 is also respectively connected with vapor-water heat exchanger 4 and air preheater 18；One end of vapor-water heat exchanger 4 is connected to
Trench, the other end of vapor-water heat exchanger 4 is connected to vapor-water heat exchanger and enters steam control valve 11；
Steam air heater 5 is in parallel with secondary steam air heater 6 and one end（Output end）It is connected with booster pump 2；The input of steam air heater 5
End is connected through a steam air heater ducting outlet air temperature sensor 13 with air preheater 18 all the way, another warm wind in road
Device entrance water regulating valve 12 is connected on the connecting line of water water- to-water heat exchanger and vapor-water heat exchanger；The input of secondary steam air heater 6
End is connected through secondary steam air heater ducting outlet air temperature sensor 15 with air preheater all the way, and another road is through secondary steam air heater
Entrance water regulating valve 14 is connected on the connecting line of water water- to-water heat exchanger and vapor-water heat exchanger；
The input of water water- to-water heat exchanger connects vapor-water heat exchanger all the way, and another road is added through condensing water flow regulating valve 7 and low temperature
Device is connected；
The output end of water water- to-water heat exchanger exports condensing water temperature sensor 9 through water water- to-water heat exchanger all the way and connects low temperature addition device, separately
Heating agent water temperature sensor 8 is exported through water water- to-water heat exchanger connect booster pump all the way.
Moisturizing motor-driven valve 17 is arranged between condensate and circulating water line.
The low low-level (stack-gas) economizer Two-way Cycle of the present invention is heated into stove wind and condensate system using low low-level (stack-gas) economizer by mending
Water electrically operated gate starts booster pump progress shuttling movement, low low-level (stack-gas) economizer entrance to heat medium water system water supplement after system full water
The low low-level (stack-gas) economizer exit gas temperature sensor settings of the chain target temperature of water regulating valve are automatic, to control water-carrying capacity to realize
The purpose of cooling, the chain warm-air drier ducting outlet air temperature sensor of a warm-air drier entrance water regulating valve, to control
Water-carrying capacity processed realizes the purpose of First air heating, and the secondary chain secondary warm-air drier ducting outlet of warm-air drier entrance water regulating valve is empty
Gas temperature sensor, to control water-carrying capacity to realize the purpose of Secondary Air heating, the chain water water- to-water heat exchanger of condensing water flow regulating valve
Condensing water temperature sensor is exported, to control condensing water flow to realize the purpose of condensate heating, water water- to-water heat exchanger heat-setting
Water, vapor-water heat exchanger additional heat is not enough.
Claims (9)
1. a kind of low low-level (stack-gas) economizer Two-way Cycle heating system, including enter stove wind heating system, it is characterized in that also including condensate
Heating system；Stove wind heating system is connected to low temperature by booster pump and water regulating valve with condensation water heating system and saves coal
Device.
2. a kind of low low-level (stack-gas) economizer Two-way Cycle heating system according to claim 1, it is characterized in that it is described enter the heating of stove wind
System includes vapor-water heat exchanger, warm-air drier, secondary warm-air drier, an air preheater, and the discharge pipe parallel connection of vapor-water heat exchanger is even
It is connected to warm-air drier, a secondary warm-air drier；No. one time warm-air drier, secondary warm-air drier are all connected with air preheater, and air preheater connects
Connect low-level (stack-gas) economizer；
Tunnel inlet where warm-air drier, a secondary warm-air drier is equipped with where regulating valve, warm-air drier, a secondary warm-air drier
Ducting outlet be provided with ducting outlet temperature sensor.
3. a kind of low low-level (stack-gas) economizer Two-way Cycle heating system according to claim 1, it is characterized in that the condensate is heated
System includes vapor-water heat exchanger, water water- to-water heat exchanger, water compensating valve, temperature sensor, and the air inlet connection carbonated drink of water water- to-water heat exchanger is changed
The air outlet of hot device, the delivery port of water water- to-water heat exchanger connects and is provided with backwater on the water return outlet of condensate system, the water return pipeline
Temperature sensor；The water inlet of water water- to-water heat exchanger connects the delivery port of condensate system, the heat exchange of water water by condensing water regulating valve
Flow control valve is installed, the air outlet of water water- to-water heat exchanger connects going out into the Secondary Air of stove wind heating system on the water inlet pipe of device
Wind pipeline；Moisturizing motor-driven valve is installed between condensate and circulating water line.
4. a kind of low low-level (stack-gas) economizer Two-way Cycle heating system according to claim 1, it is characterized in that the low-level (stack-gas) economizer
Flue outlet be provided with stack outlet temperature sensor.
5. a kind of low low-level (stack-gas) economizer Two-way Cycle heating system according to claim 1 ~ 4, it is characterized in that also include controller,
Return water temperature sensor signal output end is connected with controller signals receiving terminal, and controller signals output end is with condensing water regulating valve
Signal receiving end is connected；Stack outlet temperature sensor signal output end where low low-level (stack-gas) economizer and controller signals receiving terminal
Connection, controller signals output end is connected with low low-level (stack-gas) economizer inlet adjusting valve signal receiving terminal；Air channel where warm-air drier goes out
Mouth temperature sensor signal output end is connected with controller signals receiving terminal, and controller signals output end is with entering steam air heater regulation
Valve signal receiving terminal is connected；Vapor-water heat exchanger liquid level gauge signal output part is connected with controller signals receiving terminal, controller signals
Output end is connected with vapor-water heat exchanger blowdown motor-driven valve signal receiving end.
6. a kind of low low-level (stack-gas) economizer Two-way Cycle heating system according to claim 5, it is characterized in that the condensation water inlet
Pipeline installs regulating valve, and backwater mounting temperature sensor installs motor-driven valve additional as recirculated water between condensate and circulating water line
System water supplement；Booster pump is installed in the low low-level (stack-gas) economizer import in recirculated water side, and flue outlet installs temperature where low low-level (stack-gas) economizer
Regulating valve is installed in sensor, low low-level (stack-gas) economizer import, and backwater, which enters, installs regulating valve additional before steam air heater, warm-air drier place air channel goes out
Mouth mounting temperature sensor；Low low-level (stack-gas) economizer outlet is directly installed additional on vapor-water heat exchanger, vapor-water heat exchanger with warm-air drier UNICOM
Liquid level gauge is installed, motor-driven valve is installed in vapor-water heat exchanger blowdown.
7. a kind of low low-level (stack-gas) economizer Two-way Cycle heating system according to claim 1, it is characterized in that including low adding system, low
Low-level (stack-gas) economizer, steam air heater, vapor-water heat exchanger, water water- to-water heat exchanger, water charging system, draw condensate pipe from one low adding system entrance
Road is connected as water inlet pipe with water water- to-water heat exchanger, then returnes to another low adding system outlet；Condensate pipe pass is straight all the way
It is connected to heating agent water system and moisturizing is carried out by motor-driven valve and pipeline, heating agent water system installs booster pump and low low-level (stack-gas) economizer
UNICOM is as the water inlet of low low-level (stack-gas) economizer, and backwater converges after vapor-water heat exchanger respectively enters steam air heater and water water- to-water heat exchanger
Circulated to supercharging pump inlet.
8. a kind of low low-level (stack-gas) economizer Two-way Cycle heating system according to claim 1 ~ 7, it is characterized in that low low-level (stack-gas) economizer
Two-way Cycle heating means are to be heated using boiler tail flue gas waste heat to entering stove wind system and condensate system.
9. a kind of low low-level (stack-gas) economizer Two-way Cycle heating system according to claim 1 ~ 7, it is characterized in that being saved using low low temperature
Coal device, to heat medium water system water supplement, starts booster pump progress shuttling movement, low temperature by moisturizing electrically operated gate after system full water
The low low-level (stack-gas) economizer exit gas temperature sensor settings of the chain target temperature of economizer entrance water regulating valve are automatic, to control
Water-carrying capacity realizes the purpose of cooling, and the chain warm-air drier ducting outlet air themperature of a warm-air drier entrance water regulating valve is passed
Sensor, to control water-carrying capacity to realize the purpose of First air heating, the secondary chain secondary warm-air drier of warm-air drier entrance water regulating valve
Ducting outlet air temperature sensor, to control water-carrying capacity to realize the purpose of Secondary Air heating, condensing water flow regulating valve is chain
Water water- to-water heat exchanger exports condensing water temperature sensor, to control condensing water flow to realize the purpose of condensate heating, the heat exchange of water water
Device heat-setting water, vapor-water heat exchanger additional heat is not enough.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710365111.6A CN107023819A (en) | 2017-05-22 | 2017-05-22 | Low low-level (stack-gas) economizer Two-way Cycle heating system and Two-way Cycle heating means |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710365111.6A CN107023819A (en) | 2017-05-22 | 2017-05-22 | Low low-level (stack-gas) economizer Two-way Cycle heating system and Two-way Cycle heating means |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107023819A true CN107023819A (en) | 2017-08-08 |
Family
ID=59528613
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710365111.6A Pending CN107023819A (en) | 2017-05-22 | 2017-05-22 | Low low-level (stack-gas) economizer Two-way Cycle heating system and Two-way Cycle heating means |
Country Status (1)
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| CN (1) | CN107023819A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110657482A (en) * | 2019-09-30 | 2020-01-07 | 国网山东省电力公司电力科学研究院 | Heating extraction return water waste heat utilization connecting system and method |
| CN113310042A (en) * | 2021-05-21 | 2021-08-27 | 华能国际电力股份有限公司大连电厂 | Low-temperature coal-saving self-adjusting system for thermal power plant |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20110155347A1 (en) * | 2009-12-21 | 2011-06-30 | Alstom Technology Ltd. | Economizer water recirculation system for boiler exit gas temperature control in supercritical pressure boilers |
| CN202328165U (en) * | 2011-10-24 | 2012-07-11 | 中国电力工程顾问集团华东电力设计院 | Smoke energy cascaded utilization system and thermal power generator set adopting same |
| CN204853527U (en) * | 2015-06-06 | 2015-12-09 | 山东泓奥电力科技有限公司 | Plenum heating waste heat recovery system is united to low low -level (stack -gas) economizer of coal -fired unit |
| CN105240825A (en) * | 2015-11-10 | 2016-01-13 | 上海羲蓝节能环保科技有限公司 | Ultralow-emission MGGH energy conservation and environmental protection equipment and method for thermal power plant |
| CN105351915A (en) * | 2015-11-10 | 2016-02-24 | 上海羲蓝节能环保科技有限公司 | Double-circulation device and method for recovering and heating furnace-entering air through waste heat of boiler discharged smoke |
| CN105627289A (en) * | 2016-03-16 | 2016-06-01 | 天津爱尔普科技发展有限公司 | Low-temperature economizer combined air heater cyclic utilization system |
| CN105757645A (en) * | 2016-03-18 | 2016-07-13 | 中国科学院广州能源研究所 | Efficient low-grade residual heat resource utilization system for coal-fired power plant |
| CN205807384U (en) * | 2016-05-23 | 2016-12-14 | 深能合和电力（河源）有限公司 | A kind of MGGH condensation water heating system |
| CN106678771A (en) * | 2016-08-05 | 2017-05-17 | 杭州华电能源工程有限公司 | Air heater and low-low temperature economizer coupled energy-saving and environmental-friendly integrated system and method based on fluoroplastic heat exchanger |
-
2017
- 2017-05-22 CN CN201710365111.6A patent/CN107023819A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20110155347A1 (en) * | 2009-12-21 | 2011-06-30 | Alstom Technology Ltd. | Economizer water recirculation system for boiler exit gas temperature control in supercritical pressure boilers |
| CN202328165U (en) * | 2011-10-24 | 2012-07-11 | 中国电力工程顾问集团华东电力设计院 | Smoke energy cascaded utilization system and thermal power generator set adopting same |
| CN204853527U (en) * | 2015-06-06 | 2015-12-09 | 山东泓奥电力科技有限公司 | Plenum heating waste heat recovery system is united to low low -level (stack -gas) economizer of coal -fired unit |
| CN105240825A (en) * | 2015-11-10 | 2016-01-13 | 上海羲蓝节能环保科技有限公司 | Ultralow-emission MGGH energy conservation and environmental protection equipment and method for thermal power plant |
| CN105351915A (en) * | 2015-11-10 | 2016-02-24 | 上海羲蓝节能环保科技有限公司 | Double-circulation device and method for recovering and heating furnace-entering air through waste heat of boiler discharged smoke |
| CN105627289A (en) * | 2016-03-16 | 2016-06-01 | 天津爱尔普科技发展有限公司 | Low-temperature economizer combined air heater cyclic utilization system |
| CN105757645A (en) * | 2016-03-18 | 2016-07-13 | 中国科学院广州能源研究所 | Efficient low-grade residual heat resource utilization system for coal-fired power plant |
| CN205807384U (en) * | 2016-05-23 | 2016-12-14 | 深能合和电力（河源）有限公司 | A kind of MGGH condensation water heating system |
| CN106678771A (en) * | 2016-08-05 | 2017-05-17 | 杭州华电能源工程有限公司 | Air heater and low-low temperature economizer coupled energy-saving and environmental-friendly integrated system and method based on fluoroplastic heat exchanger |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110657482A (en) * | 2019-09-30 | 2020-01-07 | 国网山东省电力公司电力科学研究院 | Heating extraction return water waste heat utilization connecting system and method |
| CN113310042A (en) * | 2021-05-21 | 2021-08-27 | 华能国际电力股份有限公司大连电厂 | Low-temperature coal-saving self-adjusting system for thermal power plant |
| CN113310042B (en) * | 2021-05-21 | 2022-11-29 | 华能国际电力股份有限公司大连电厂 | Low-temperature economizer self-adjusting system for thermal power plant |
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Application publication date: 20170808 |