CN108266718A - The high level that waste incinerator low-lying level working medium is coupled with coal-burning boiler utilizes system - Google Patents
The high level that waste incinerator low-lying level working medium is coupled with coal-burning boiler utilizes system Download PDFInfo
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- CN108266718A CN108266718A CN201711432535.6A CN201711432535A CN108266718A CN 108266718 A CN108266718 A CN 108266718A CN 201711432535 A CN201711432535 A CN 201711432535A CN 108266718 A CN108266718 A CN 108266718A
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- coal
- waste
- burning boiler
- waste incinerator
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Classifications
-
- 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
- F22D1/32—Feed-water heaters, i.e. economisers or like preheaters arranged to be heated by steam, e.g. bled from turbines
-
- 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
- F22D1/50—Feed-water heaters, i.e. economisers or like preheaters incorporating thermal de-aeration of feed-water
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
- F23G5/00—Incineration of waste; Incinerator constructions; Details, accessories or control therefor
- F23G5/44—Details; Accessories
- F23G5/46—Recuperation of heat
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
- F23G2206/00—Waste heat recuperation
- F23G2206/20—Waste heat recuperation using the heat in association with another installation
- F23G2206/203—Waste heat recuperation using the heat in association with another installation with a power/heat generating installation
-
- 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
- Y02E20/12—Heat utilisation in combustion or incineration of waste
Abstract
The high level that waste incinerator low-lying level working medium is coupled with coal-burning boiler utilizes system.Waste incinerator, for the purpose of handling rubbish, using the waste heat boiler for burning heat in stove and being disposed with superheater, the generating efficiency of waste incinerator is very low.Present invention composition includes high-pressure heater（1）, the high-pressure heater is equipped with feed pump all the way（2）Supply line（7）With waste incinerator（3）Waste-heat oven heating surface connection, the outlet water conduits of waste incinerator（8）Converge rear and coal-burning boiler with the another way supply line of the high-pressure heater（4）Tail portion economizer（5）Connection in the supply line being connect with waste-heat oven heating surface, is respectively arranged with shut-off valve on waste incinerator outlet water conduits（6）.The present invention is applied to the high level that waste incinerator low-lying level working medium is coupled with coal-burning boiler and utilizes system.
Description
Technical field：
The present invention relates to the high levels that a kind of waste incinerator low-lying level working medium is coupled with coal-burning boiler to utilize system, and in particular to
A kind of waste incinerator working medium and coal-burning boiler coupled electricity-generation, waste incinerator low-lying level working medium by with efficient fuel coal boiler coupling
It closes, realizes that energy level shifts and is promoted to high level and utilizes system.
Background technology：
Waste incinerator utilizes the waste heat boiler for burning heat in stove and being disposed with superheater, waste heat for the purpose of handling rubbish
The generating efficiency of stove is very low, 18% ~ 25%, far below the generating efficiency of efficient fuel coal unit about 45%.Meanwhile waste incinerator
There are equipment investment height, and heating surface high temperature corrosion, tail portion low-temperature corrosion, flying dust slagging , bioxin flue gas emission indexs are low, and need
The flue gas purification systems such as individual desulphurization and denitration, dedusting are equipped with, equipment cost and operation and maintenance cost are high.
Invention content：
In order to overcome the above problem of the existing technology, the object of the present invention is to provide a kind of waste incinerator low-lying level working medium
The high level coupled with coal-burning boiler utilizes system and superheated steam production method.
Above-mentioned purpose is realized by following technical scheme：
The high level that a kind of waste incinerator low-lying level working medium is coupled with coal-burning boiler utilizes system, and composition includes：High pressure adds
Hot device, the supply line for being equipped with feed pump all the way of the high-pressure heater and the waste-heat oven heating surface of waste incinerator connect
Connect, the another way supply line of the outlet water conduits of waste incinerator and the high-pressure heater converge afterwards with coal-burning boiler
Economizer connection in tail portion in the supply line being connect with waste-heat oven heating surface, is set on waste incinerator outlet water conduits respectively
There is shut-off valve.
The high level that the waste incinerator low-lying level working medium is coupled with coal-burning boiler is produced using the superheated steam of system
Generation method feeds water and enters low-pressure heater, then enter high-pressure heaters at different levels through oxygen-eliminating device through feed pump, goes out from high-pressure heater
The working medium come is divided into two-way, wherein being sent into the economizer entrance of coal-burning boiler by feedwater piping all the way, another way is through feed pipe
Road enters the waste-heat oven burnt away the refuse through heating surfaces at different levels, and province's coal of coal-burning boiler is imported by final stage heating surface outlet conduit
Device entrance improves the inlet water temperature of coal-burning boiler coal economizer, and the waste-heat oven that the unsaturated water of low-lying level is passed through waste incineration
It with the steam/water circulating of coal-burning boiler, carries to the main steam of high level, realize energy level transfer and is promoted to high level using system, carry
The high generating efficiency of waste incinerator and coal unit, reduces the coal consumption of coal-burning boiler；The wherein final stage through waste incinerator
The unsaturated water for the low-lying level that heating surface outlet conduit comes out is the high pressure of waste heat boiler generation burnt away the refuse, super-pressure, Asia
Critical, overcritical or ultra supercritical unsaturated water.
Beneficial effects of the present invention：
1. the present invention is divided into two-way from the high-pressure heater outlet of steam turbine system, a portion low temperature unsaturated water is directly entered
Economizer entrance, another way enter the waste-heat oven heating surface burnt away the refuse, the medium temperature unsaturation work of generation by feed pump through pipeline
Matter is introduced into the economizer entrance of coal-burning boiler with low temperature unsaturation working medium, improves the inlet water temperature of economizer.It realizes with active service
Coal-burning boiler based on, the medium temperature unsaturated water that is generated using the waste heat boiler burnt away the refuse is introduced into coal-burning boiler
Economizer entrance, then be promoted to superheated steam through heating surface of coal-fired boiler, realize energy level transfer and be promoted to high level utilization
System while improving economizer inlet water temperature, also improves the quality of former waste incinerator working medium, improve waste incinerator and
The generating efficiency of coal-burning boiler reduces the coal consumption for power generation of coal unit；Waste incinerator working medium reduce, extend burn away the refuse it is remaining
The service life of hot stove heating surface.
The present invention provides the high levels that a kind of waste incinerator low-lying level working medium is coupled with efficient fuel coal boiler to utilize system
System is the high pressure that is generated using the waste heat boiler burnt away the refuse, super-pressure, subcritical, super based on the coal-burning boiler of active service
Unsaturated water is introduced into the economizer entrance of coal-burning boiler, then the heat through coal unit by critical, ultra supercritical unsaturated water
The power circulatory system is promoted to the superheated steam of high-quality, realizes energy level transfer and is promoted to high level using system, improves rubbish
Rubbish incinerator and coal unit generating efficiency reduce the coal consumption for power generation of coal unit.
For waste incineration furnace body, waste incinerator generated after burning heat by the carbonated drink side of waste incineration furnace body by
Hot face absorbs, the high pressure of generation, super-pressure, subcritical, overcritical, ultra supercritical unsaturated water；In waste incineration furnace body
Pipeline on a shut-off valve is installed, when waste incinerator is out of service, waste incineration furnace body and pulverized-coal fired boiler will be released
Coupling；For the coal-burning boiler matching high pressure of waste incineration furnace body of different capabilities, super-pressure, subcritical, overcritical, super
The working medium of postcritical different pressures and temperature is coupled respectively；For coal-burning boiler, part working medium is more than the waste incineration
Become high temperature refrigerant after the heating of hot stove heating surface with former cryogenic fluid in economizer to converge, improve economizer entrance unsaturated water
Temperature improves the quality of original waste incinerator working medium after each heating surface heating of coal-burning boiler, becomes from low-lying level working medium
For high level working medium；The working medium of waste incinerator is promoted to high level working medium from low-lying level, substantially increases waste incinerator
Generating efficiency, working medium circulation efficiency are improved by 20% to about 35%.Meanwhile the efficiency of coal unit is also improved, coal consumption is reduced,
And do not influence the steam turbine system of original coal unit.The working medium of waste incinerator is water, and the high temperature for reducing stove internal heating surface is rotten
Erosion extends the service life of heating surface.Save the steam turbine generator set system equipment and operation cost of former waste incinerator.
Description of the drawings：
Attached drawing 1 is the structure diagram of the present invention.
Specific embodiment：
Embodiment 1：
The high level that a kind of waste incinerator low-lying level working medium is coupled with coal-burning boiler utilizes system, and composition includes：High pressure adds
Hot device 1, the supply line 7 for being equipped with feed pump 2 all the way and the waste-heat oven of waste incinerator 3 of the high-pressure heater are heated
Face connects, and the another way supply line of the outlet water conduits 8 of waste incinerator and the high-pressure heater converges rear and fire coal
The tail portion economizer 5 of boiler 4 connects, in the supply line being connect with waste-heat oven heating surface, on waste incinerator outlet water conduits
It is respectively arranged with shut-off valve 6.
Embodiment 2：
The high level that above-mentioned waste incinerator low-lying level working medium is coupled with coal-burning boiler utilizes the superheated steam production method of system,
Feedwater enters low-pressure heater, then enter high-pressure heaters at different levels through oxygen-eliminating device through feed pump, the work come out from high-pressure heater
Matter is divided into two-way, wherein being sent into the economizer entrance of coal-burning boiler by feedwater piping all the way, another way enters through feedwater piping
To the waste-heat oven burnt away the refuse through heating surfaces at different levels, the economizer that coal-burning boiler is imported by final stage heating surface outlet conduit enters
Mouthful, improve the inlet water temperature of coal-burning boiler coal economizer, and by waste-heat oven of the unsaturated water of low-lying level by waste incineration and combustion
The steam/water circulating of coal burning boiler is carried to the main steam of high level, is realized energy level transfer and is promoted to high level using system, improves
The generating efficiency of waste incinerator and coal unit reduces the coal consumption of coal-burning boiler；Wherein the final stage through waste incinerator is heated
The unsaturated water for the low-lying level that face outlet conduit comes out be the waste heat boiler burnt away the refuse generate high pressure, super-pressure, it is subcritical,
Overcritical or ultra supercritical unsaturated water.
Embodiment 3：
The high level that waste incinerator low-lying level working medium according to embodiment 1 or 2 is coupled with coal-burning boiler utilizes system, from
The working medium that high-pressure heater comes out connects the tail portion economizer of coal-burning boiler by feed pump all the way, and another way is drawn by feed pump
Enter to the waste-heat oven heating surface burnt away the refuse, the unsaturated water after heating surface out is come out by pipeline and high-pressure heater
Water converge, be introduced into the economizer entrance of coal-burning boiler.
As a further improvement on the present invention, the high pressure unsaturated water of the waste incineration furnace body is burnt through pipeline and rubbish
The waste-heat oven heating surface for burning stove is connected.So set, the burn away the refuse high pressure unsaturated water of generation of waste incineration furnace body is drawn
Enter the economizer entrance to coal-burning boiler, improve the inlet water temperature of coal-burning boiler coal economizer, and the unsaturated water of low-lying level is led to
The waste-heat oven of waste incineration and the steam/water circulating of coal-burning boiler are crossed, is carried to the main steam of high level, realize energy level transfer and is promoted
To high level using system, the generating efficiency of waste incinerator and coal unit is improved, reduces the coal consumption of coal-burning boiler.
As a further improvement on the present invention, the super-pressure unsaturated water of the waste incineration furnace body is through pipeline and rubbish
The waste-heat oven heating surface of incinerator is connected.So set, the super-pressure unsaturation for generation that waste incineration furnace body is burnt away the refuse
Water is introduced into the economizer entrance of coal-burning boiler, improves the inlet water temperature of coal-burning boiler coal economizer, and by the unsaturation of low-lying level
Water is carried to the main steam of high level by the waste-heat oven of waste incineration and the steam/water circulating of coal-burning boiler, realize energy level transfer and
It is promoted to high level and utilizes system.The generating efficiency of waste incinerator and coal unit is improved, reduces the coal consumption of coal-burning boiler.
As a further improvement on the present invention, the subcritical unsaturated water of the waste incineration furnace body is through pipeline and rubbish
The waste-heat oven heating surface of incinerator is connected.So set, the subcritical unsaturation for generation that waste incineration furnace body is burnt away the refuse
Water is introduced into the economizer entrance of coal-burning boiler, improves the inlet water temperature of coal-burning boiler coal economizer, and by the unsaturation of low-lying level
Water is carried to the main steam of high level by the waste-heat oven of waste incineration and the steam/water circulating of coal-burning boiler, realize energy level transfer and
High level is promoted to using system, the generating efficiency of waste incinerator and coal unit is improved, reduces the coal consumption of coal-burning boiler.
As a further improvement on the present invention, the overcritical unsaturated water of the waste incineration furnace body is through pipeline and rubbish
The waste-heat oven heating surface of incinerator is connected.So set, the overcritical unsaturation for generation that waste incineration furnace body is burnt away the refuse
Water is introduced into the economizer entrance of coal-burning boiler, improves the inlet water temperature of coal-burning boiler coal economizer, and by the unsaturation of low-lying level
Water realizes energy level transfer and is promoted to high level using system by the waste-heat oven of waste incineration and the steam/water circulating of coal-burning boiler
System, puies forward the generating efficiency for the main steam of high level, improving waste incinerator and coal unit, reduces the coal of coal-burning boiler
Consumption.
As a further improvement on the present invention, the ultra supercritical unsaturated water of the waste incineration furnace body is through pipeline and rubbish
The waste-heat oven heating surface of rubbish incinerator is connected.So set, by waste incineration furnace body burn away the refuse generation ultra supercritical not
Saturated water is introduced into the economizer entrance of coal-burning boiler, improves the inlet water temperature of coal-burning boiler coal economizer, and by low-lying level not
Saturated water carries to the main steam of high level by the waste-heat oven of waste incineration and the steam/water circulating of coal-burning boiler, realizes that energy level turns
High level is moved and be promoted to using system, the generating efficiency of waste incinerator and coal unit is improved, reduces coal-burning boiler
Coal consumption.
As a further improvement on the present invention, the pipeline is equipped with shut-off valve.So set, when waste incinerator stops
During operation, the coupling of waste incineration furnace body and coal-burning boiler will be released.
The course of work：
Feedwater enters low-pressure heater, then enter high-pressure heaters at different levels through oxygen-eliminating device through feed pump, is divided into two-way, wherein all the way
The economizer entrance of coal-burning boiler is sent by feedwater piping, another way enters the waste-heat oven warp burnt away the refuse through feedwater piping
Heating surfaces at different levels are imported into the economizer entrance of coal-burning boiler by final stage heating surface outlet conduit, using the work of coal-burning boiler
The matter circulatory system, becomes superheated steam.
Claims (2)
1. the high level that a kind of waste incinerator low-lying level working medium is coupled with coal-burning boiler utilizes system, composition includes：High pressure
Heater, it is characterized in that：The supply line for being equipped with feed pump all the way of the high-pressure heater and waste incinerator it is remaining
After the another way supply line of the connection of hot stove heating surface, the outlet water conduits of waste incinerator and the high-pressure heater converges
It is connect with the tail portion economizer of coal-burning boiler, in supply line, the waste incineration outlet of still water pipe being connect with waste-heat oven heating surface
Shut-off valve is respectively arranged on road.
2. the high level that a kind of waste incinerator low-lying level working medium described in claim 1 is coupled with coal-burning boiler utilizes system
Superheated steam production method, it is characterized in that：Feedwater enters low-pressure heater, then add into high pressures at different levels through oxygen-eliminating device through feed pump
Hot device, the working medium come out from high-pressure heater is divided into two-way, wherein being sent into the economizer of coal-burning boiler by feedwater piping all the way
Entrance, another way enters the waste-heat oven burnt away the refuse through feedwater piping through heating surfaces at different levels, by final stage heating surface outlet conduit
The economizer entrance of coal-burning boiler is imported into, improves the inlet water temperature of coal-burning boiler coal economizer, and by the unsaturated water of low-lying level
It by the waste-heat oven of waste incineration and the steam/water circulating of coal-burning boiler, carries to the main steam of high level, realize energy level transfer and carries
High level is risen to using system, the generating efficiency of waste incinerator and coal unit is improved, reduces the coal consumption of coal-burning boiler；Its
The unsaturated water for the low-lying level that the middle final stage heating surface outlet conduit through waste incinerator comes out is the waste heat boiler burnt away the refuse
The high pressure of generation, super-pressure, subcritical, overcritical or ultra supercritical unsaturated water.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201711432535.6A CN108266718A (en) | 2017-12-26 | 2017-12-26 | The high level that waste incinerator low-lying level working medium is coupled with coal-burning boiler utilizes system |
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| CN201711432535.6A CN108266718A (en) | 2017-12-26 | 2017-12-26 | The high level that waste incinerator low-lying level working medium is coupled with coal-burning boiler utilizes system |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108870373A (en) * | 2018-08-13 | 2018-11-23 | 哈尔滨锅炉厂有限责任公司 | A kind of heating system of the raising feed temperature for waste incinerator |
| CN109372602A (en) * | 2018-09-07 | 2019-02-22 | 上海明华电力技术工程有限公司 | A kind of biomass incinerator and coal unit steam coupled system and method |
| CN109578968A (en) * | 2018-12-18 | 2019-04-05 | 华北电力大学 | A kind of coal generating system of coal-burning boiler and waste incinerator segmented couples |
| CN111853739A (en) * | 2020-08-14 | 2020-10-30 | 中国能源建设集团广东省电力设计研究院有限公司 | Sludge and fire coal integrated processing system based on steam-water coupling |
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| CN111853739A (en) * | 2020-08-14 | 2020-10-30 | 中国能源建设集团广东省电力设计研究院有限公司 | Sludge and fire coal integrated processing system based on steam-water coupling |
| CN111853739B (en) * | 2020-08-14 | 2022-03-04 | 中国能源建设集团广东省电力设计研究院有限公司 | Sludge and fire coal integrated processing system based on steam-water coupling |
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