CN206360739U - One kind is applied to waste incineration and generating electricity steam circulation reheating and improves heat utilization efficiency system - Google Patents
One kind is applied to waste incineration and generating electricity steam circulation reheating and improves heat utilization efficiency system Download PDFInfo
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- CN206360739U CN206360739U CN201621484706.0U CN201621484706U CN206360739U CN 206360739 U CN206360739 U CN 206360739U CN 201621484706 U CN201621484706 U CN 201621484706U CN 206360739 U CN206360739 U CN 206360739U
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- reheated steam
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E20/00—Combustion technologies with mitigation potential
- Y02E20/34—Indirect CO2mitigation, i.e. by acting on non CO2directly related matters of the process, e.g. pre-heating or heat recovery
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- 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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P80/00—Climate change mitigation technologies for sector-wide applications
- Y02P80/10—Efficient use of energy, e.g. using compressed air or pressurized fluid as energy carrier
- Y02P80/15—On-site combined power, heat or cool generation or distribution, e.g. combined heat and power [CHP] supply
Abstract
The utility model is related to a kind of waste incineration and generating electricity steam circulation reheating and improves heat utilization efficiency system, and the system includes waste heat boiler reheater, turbine high-pressure section, reheated steam import and export pipeline, reheated steam import and export header, steam type airheater bypass duct;The waste heat boiler reheater and reheated steam outlet header connect reheated steam outlet conduit, reheated steam outlet conduit connection turbine high-pressure section, turbine high-pressure section connection reheated steam inlet pipeline, steam type airheater is set to bypass on reheated steam inlet pipeline, reheated steam inlet pipeline connection reheated steam import header and waste heat boiler reheater.The utility model is simple in construction, practical, reduces steam moisture, alleviates erosion of the moist steam to blade, is effectively improved overall generating efficiency.
Description
Technical field
The utility model is related to waste incineration and generating electricity field, is specially that one kind is applied to waste incineration and generating electricity steam circulation again
Heat improves heat utilization efficiency system.
Background technology
In recent years, in incineration treatment of garbage, it is strongly required further to mitigate carrying capacity of environment, realizes the efficient of using energy source
Change, the operation of reduction refuse-burning plant and equipment maintenance cost obtain good economic benefit.Improve waste heat boiler main steam condition
(450 DEG C of sub-high pressure, 4.5MPa), it is a kind of one of method for improving the overall generating efficiency of full factory, but add superheater high temperature
The risk of corrosion, the stability reduction of equipment operation, moreover, the material of superheater must be correspondingly improved, equipment maintenance cost is high.
At present, domestic refuse thermal value is generally than relatively low, and waste incineration and generating electricity industry uses sub-high pressure Waste Heat Generation unit few,
Therefore, it is difficult to promote sub-high pressure Waste Heat Generation technology on a large scale.
Utility model content
The utility model is that on the basis of conventional garbage burning electricity generation, optimization further to steam generating system changes
Enter, from safety, economy, the angle of stable operation, the steam of part work will have been finished in steam turbine high-pressure cylinder, come back to
Reheating in the reheater in waste heat boiler is arranged on, so as to improve overall generating efficiency.
Concrete technical scheme of the present utility model is as follows:
One kind is applied to waste incineration and generating electricity steam circulation reheating and improves heat utilization efficiency system, and the system includes waste heat boiler
Reheater, turbine high-pressure section, by reheated steam import and export pipeline, reheated steam import and export header, steam type airheater
Road pipeline;The waste heat boiler reheater and reheated steam outlet header connect reheated steam outlet conduit, reheated steam outlet
Set on pipeline connection turbine high-pressure section, turbine high-pressure section connection reheated steam inlet pipeline, reheated steam inlet pipeline
Steam type airheater is bypassed, reheated steam inlet pipeline connection reheated steam import header and waste heat boiler reheater.
Further, steam type airheater bypass duct is set on described reheater inlet pipeline.
Further, electric control valve is provided with all pipelines, for adjusting reheated steam and steam air preheating
Device extraction flow.
After the utility model structure, reheated steam is extracted out from steam turbine high-pressure cylinder, and waste heat boiler reheating is entered all the way
Device, releases from steam type airheater bypass heat a Secondary Air all the way.Waste heat boiler reheater is mainly disposed to incinerator
At the flue of waste heat boiler second, convection current heated environment can be effectively adapted to, the high temperature corrosion risk of high temperature superheater is reduced.This reality
It is simple with new structure, it is practical, steam moisture is reduced, erosion of the moist steam to blade is alleviated, is effectively improved
Overall generating efficiency.
Brief description of the drawings
Fig. 1 is that waste heat boiler reheater arranges schematic diagram;
Fig. 2 is the utility model structural representation.
Embodiment
Traditional waste incineration and generating electricity uses 400 DEG C, and 4.0MPa medium pressure steam, the utility model is in rubbish
Reheater heating surface is set in rubbish waste gas of incineration boiler, it is then that the high pressure cylinder steam for having made the common steam turbine in part is whole
Extract out, heated again in the reheater for being fed in waste heat boiler setting, reheat steam temperature is reheated to primary steam temperature
After degree, it is fed again into steam turbine mesolow cylinder and generates electricity, so as to improve steam-electric power efficiency.More than sub-high pressure steam parameter
Heat boiler generating set is compared, and the utility model superheater need not use higher material, and maintenance cost is low, stable.
During due to waste incineration, extraction section steam it need to go to heat the primary and secondary air needed for waste incineration from steam turbine,
It is set to bring up to corresponding temperature.Bypass line is set in the utility model on reheated steam inlet pipeline, part is extracted
Steam goes to heat primary and secondary air, as shown in Figure 1.
The utility model is related to domestic garbage burning electricity generation field, and specially waste incineration and generating electricity steam circulation reheating is improved
Heat utilization efficiency system, including waste heat boiler reheater, turbine high-pressure section, reheated steam import and export pipeline, reheated steam enter,
Outlet header, steam type airheater bypass duct;Electric control valve is respectively provided with all pipelines.By in steam turbine high-pressure cylinder
The reheater that boiler is re-introduced into through having done the steam of part work(is reheated, and vapor (steam) temperature is increased again to initial main steam
Temperature, then leads back in steam turbine, the interior continuation of low pressure (LP) cylinder is done work, can both reduce steam moisture, mitigate moist steam to blade again
Erosion;The thermal efficiency can be improved again.Wherein, the steam needed for primary and secondary air heating is drawn from reheated steam inlet pipeline.
A kind of waste incineration and generating electricity steam circulation reheating that is applied to improves heat utilization efficiency system as shown in Figure 2, and it includes remaining
Heat boiler reheater 1 and the connection reheated steam of reheated steam outlet header 2 outlet conduit 3, the connection vapour of reheated steam outlet conduit 3
Turbine high pressure section 4, turbine high-pressure section 4 is connected sets steam empty on reheated steam inlet pipeline 5, reheated steam inlet pipeline 5
Air preheater bypass 7, the connection reheated steam import of reheated steam inlet pipeline 5 header 8 and waste heat boiler reheater 1.On pipeline
Electric control valve 6, regulation reheated steam and steam type airheater extraction flow.
After the utility model structure, reheated steam is extracted out from steam turbine high-pressure cylinder, and waste heat boiler reheating is entered all the way
Device, releases from steam type airheater bypass heat a Secondary Air all the way.Waste heat boiler reheater is mainly disposed to incinerator
At the flue of waste heat boiler second, convection current heated environment can be effectively adapted to, the high temperature corrosion risk of high temperature superheater is reduced.This reality
It is simple with new structure, it is practical, steam moisture is reduced, erosion of the moist steam to blade is alleviated, is effectively improved
Overall generating efficiency.
Claims (3)
1. one kind, which is applied to waste incineration and generating electricity steam circulation reheating, improves heat utilization efficiency system, it is characterised in that the system bag
Include waste heat boiler reheater, turbine high-pressure section, reheated steam import and export pipeline, reheated steam import and export header, steam sky
Air preheater bypass duct;The waste heat boiler reheater and reheated steam outlet header connect reheated steam outlet conduit, then
Vapours outlet conduit connection turbine high-pressure section, turbine high-pressure section connection reheated steam inlet pipeline, reheated steam import
Steam type airheater is set to bypass on pipeline, reheated steam inlet pipeline connection reheated steam import header and waste heat boiler are again
Hot device.
2. a kind of waste incineration and generating electricity steam circulation reheating that is applied to according to claim 1 improves heat utilization efficiency system,
Characterized in that, setting steam type airheater bypass duct on described reheater inlet pipeline.
3. a kind of waste incineration and generating electricity steam circulation reheating that is applied to according to claim 1 improves heat utilization efficiency system,
Characterized in that, being provided with the electric adjustable for adjusting reheated steam and steam type airheater extraction flow on all pipelines
Save valve.
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CN201621484706.0U CN206360739U (en) | 2016-12-31 | 2016-12-31 | One kind is applied to waste incineration and generating electricity steam circulation reheating and improves heat utilization efficiency system |
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CN201621484706.0U CN206360739U (en) | 2016-12-31 | 2016-12-31 | One kind is applied to waste incineration and generating electricity steam circulation reheating and improves heat utilization efficiency system |
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Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN106761991A (en) * | 2016-12-31 | 2017-05-31 | 上海康恒环境股份有限公司 | One kind is applied to waste incineration and generating electricity steam circulation reheating and improves heat utilization efficiency system |
CN108397246A (en) * | 2018-01-03 | 2018-08-14 | 武汉都市环保工程技术股份有限公司 | A kind of garbage incinerating power plant reheat system |
CN110529210A (en) * | 2019-09-11 | 2019-12-03 | 东方电气集团东方锅炉股份有限公司 | A kind of method and system that heat supply steam extraction reheats |
WO2020199098A1 (en) * | 2019-04-01 | 2020-10-08 | 深圳市能源环保有限公司 | System for increasing steam temperature of waste incinerator by utilizing leachate marsh gas |
-
2016
- 2016-12-31 CN CN201621484706.0U patent/CN206360739U/en active Active
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN106761991A (en) * | 2016-12-31 | 2017-05-31 | 上海康恒环境股份有限公司 | One kind is applied to waste incineration and generating electricity steam circulation reheating and improves heat utilization efficiency system |
CN108397246A (en) * | 2018-01-03 | 2018-08-14 | 武汉都市环保工程技术股份有限公司 | A kind of garbage incinerating power plant reheat system |
WO2020199098A1 (en) * | 2019-04-01 | 2020-10-08 | 深圳市能源环保有限公司 | System for increasing steam temperature of waste incinerator by utilizing leachate marsh gas |
CN110529210A (en) * | 2019-09-11 | 2019-12-03 | 东方电气集团东方锅炉股份有限公司 | A kind of method and system that heat supply steam extraction reheats |
CN110529210B (en) * | 2019-09-11 | 2024-05-03 | 东方电气集团东方锅炉股份有限公司 | Method and system for reheating heat supply steam extraction |
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