CN206514282U - Drive small machine cold end waste heat comprehensive utilization system in a kind of thermal power plant blower fan vapour Electricity Federation - Google Patents

Drive small machine cold end waste heat comprehensive utilization system in a kind of thermal power plant blower fan vapour Electricity Federation Download PDF

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Publication number
CN206514282U
CN206514282U CN201720178380.7U CN201720178380U CN206514282U CN 206514282 U CN206514282 U CN 206514282U CN 201720178380 U CN201720178380 U CN 201720178380U CN 206514282 U CN206514282 U CN 206514282U
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China
Prior art keywords
power plant
electricity federation
thermal power
vapour electricity
blower fan
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CN201720178380.7U
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Chinese (zh)
Inventor
赵兴春
张伏叶
张芳绮
陈卓
高晓频
郑冠捷
刘立成
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Northwest Electric Power Design Institute of China Power Engineering Consulting Group
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Northwest Electric Power Design Institute of China Power Engineering Consulting Group
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    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E20/00Combustion technologies with mitigation potential
    • Y02E20/34Indirect CO2mitigation, i.e. by acting on non CO2directly related matters of the process, e.g. pre-heating or heat recovery
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02PCLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P80/00Climate change mitigation technologies for sector-wide applications
    • Y02P80/10Efficient use of energy, e.g. using compressed air or pressurized fluid as energy carrier

Abstract

The utility model discloses a kind of thermal power plant blower fan vapour Electricity Federation and drives small machine cold end waste heat comprehensive utilization system, including closed cycle water route and thermal power plant air preheater gas bypass, the cooling circulating water water route of turbine condenser is driven in closed cycle water route as vapour Electricity Federation, while heating the cold First air of heat power plant boiler and/or cold Secondary Air;Thermal power plant air preheater gas bypass is used to heat vapour Electricity Federation drive steam turbine condensate and high-pressure feed water, the cold end exhaust gas heat of steam turbine is rationally driven using blower fan vapour Electricity Federation, it is to avoid energy loss.

Description

Drive small machine cold end waste heat comprehensive utilization system in a kind of thermal power plant blower fan vapour Electricity Federation
【Technical field】
The utility model belongs to thermal power plant energy-conserving and emission-cutting technology, is related to a kind of thermal power plant blower fan vapour Electricity Federation and drives small Machine cold end waste heat comprehensive utilization system.
【Background technology】
Thermal power plant power of fan is very high, influences very big to station service power consumption rate.In order to reduce station service power consumption rate, many power plant adopt With vapour drive blower or vapour Electricity Federation drive blower.But it is less efficient because blower fan small turbine power is smaller, so these schemes Economize on electricity, but do not economize on coal.Solution never economize on coal the very corn of a subject be that improve small turbine be evacuated energy utilization rate, cold end steam discharge Loss is a small turbine energy loss very big part, therefore rational can solve existing scheme using cold end steam discharge energy The problem of not economizing on coal.
【Utility model content】
The utility model aims to overcome that a kind of the not enough electric there is provided thermal power plant blower fan vapour of prior art Connection drives small machine cold end waste heat comprehensive utilization system, reclaims vapour Electricity Federation and drives the loss of Turbine Cold Junction steam discharge, reaches the mesh economized on coal, economized on electricity 's.
To reach above-mentioned purpose, the utility model patent, which is adopted the following technical scheme that, to be achieved:
Small machine cold end waste heat comprehensive utilization system is driven in a kind of thermal power plant blower fan vapour Electricity Federation, including closed cycle water route and Thermal power plant air preheater gas bypass;Drive steam turbine condensing in the vapour Electricity Federation that closed cycle water route includes connecting by pipeline Device, First air heater and/or Secondary Air heater, the cooling that turbine condenser is driven in closed cycle water route as vapour Electricity Federation are followed Huan Shui water routes, while heating the cold First air of heat power plant boiler and/or cold Secondary Air;Thermal power plant air preheater flue gas The first low-level (stack-gas) economizer and the second low-level (stack-gas) economizer, the first low-level (stack-gas) economizer and the second low-level (stack-gas) economizer difference are provided with bypass Turbine high-pressure feedwater and condensate are driven for heating vapour Electricity Federation.
Further, First air heater and Secondary Air heater, First air heater and two are connected in closed cycle water route Secondary wind heater is connected in the cooling circulating water water route that turbine condenser is driven in vapour Electricity Federation by two branch roads, in two branch roads It is respectively connected with regulating valve and shut-off valve.
Further, enclosed expansion tank and booster are connected with closed cycle water route.
Further, it is connected with heat exchanger in closed cycle water route.
Further, it is mounted on electronic flue gas regulation in the flue of heat power plant boiler and air preheater gas bypass Baffle door.
Further, closed cycle water route, heat power plant boiler exhanst gas outlet, inlet air of boiler mouthful are mounted on temperature pick-up Device.
Further, it is condensing-type that steam turbine is driven in vapour Electricity Federation.
Small machine cold end waste heat comprehensive utilization system is driven in thermal power plant blower fan vapour Electricity Federation of the present utility model, including enclosed is followed The cold of turbine condenser is driven as vapour Electricity Federation in ring water route and thermal power plant air preheater gas bypass, closed cycle water route But recirculated water water route, while heating the cold First air of heat power plant boiler and/or cold Secondary Air;Thermal power plant air preheater Gas bypass is used to heat vapour Electricity Federation drive steam turbine condensate and high-pressure feed water, rationally drives the cold of steam turbine using blower fan vapour Electricity Federation Hold exhaust gas heat, it is to avoid energy loss.
The utility model drives small machine only for vapour Electricity Federation, it is small it is confidential ask as the small machine of high back pressure, specific back pressure is according to working as ground vapour As condition and steam turbine exert oneself it is detailed examine, the utility model energy-saving effect substantially, invest low, simple system, solve vapour Electricity Federation The economize on electricity of drive scheme is not economized on coal problem, there is fine economic value and social value.
【Brief description of the drawings】
Fig. 1 is a kind of example structure schematic diagram of the present utility model;
Fig. 2 is another example structure schematic diagram of the present utility model;
In figure:1- air preheaters;2- boilers;The electronic gas proportioning damper doors of 3-;The low-level (stack-gas) economizers of 41- first;42- Two low-level (stack-gas) economizers;5- First air heaters;6- Secondary Air heaters;Drive turbine condenser in 7- vapour Electricity Federation;8- encloseds expand Water tank;9- heat exchangers;10- boosters.
【Embodiment】
The application particular content is described in detail below in conjunction with the drawings and specific embodiments.
Small machine cold end waste heat comprehensive utilization system is driven in thermal power plant blower fan vapour Electricity Federation of the present utility model,
As depicted in figs. 1 and 2, the small machine in thermal power plant blower fan vapour Electricity Federation of the present utility model drives cold end residual heat integrative and utilized System, including closed cycle water route and thermal power plant air preheater gas bypass;Closed cycle water route includes passing through pipeline Drive turbine condenser 7, First air heater 5 and/or Secondary Air heater 6, the conduct of closed cycle water route in the vapour Electricity Federation of connection The cooling circulating water water route of turbine condenser 7 is driven in vapour Electricity Federation, while heating the cold First air of heat power plant boiler and/or cold two Secondary wind;
The first low-level (stack-gas) economizer 41 and the second low-level (stack-gas) economizer are provided with the air preheater gas bypass of thermal power plant 42, the first low-level (stack-gas) economizer 41 and the second low-level (stack-gas) economizer 42 are respectively used to heating vapour Electricity Federation and drive turbine high-pressure feedwater and condense Water.
First air heater 5 and Secondary Air heater 6, First air heater 5 and Secondary Air are connected in closed cycle water route Heater 6 is connected in the cooling circulating water water route that turbine condenser 7 is driven in vapour Electricity Federation by two branch roads, in two branch roads It is connected with regulating valve and shut-off valve.
Enclosed expansion tank 8, booster 10 and heat exchanger 9 are connected with closed cycle water route.Heat power plant boiler 2 Electronic gas proportioning damper door 3 is mounted in flue and air preheater gas bypass.
Closed cycle water route, the exhanst gas outlet of heat power plant boiler 2, inlet air of boiler mouthful are mounted on temperature transmitter, vapour It is condensing-type that steam turbine is driven in Electricity Federation.
Preferred embodiment of the present utility model is the foregoing is only, it is all at this not to limit the utility model Within the spirit and principle of utility model, any modification, equivalent substitution and improvements done etc. should be included in the utility model Within the scope of.

Claims (7)

1. small machine cold end waste heat comprehensive utilization system is driven in a kind of thermal power plant blower fan vapour Electricity Federation, it is characterised in that:Including enclosed Circulation waterway and thermal power plant air preheater gas bypass;
Closed cycle water route include by pipeline connect vapour Electricity Federation drive turbine condenser (7), First air heater (5) and/ Or Secondary Air heater (6), closed cycle water route as vapour Electricity Federation drive turbine condenser (7) cooling circulating water water route, together The cold First air of Shi Jiare heat power plant boilers and/or cold Secondary Air;
The first low-level (stack-gas) economizer (41) and the second low-level (stack-gas) economizer are provided with the air preheater gas bypass of thermal power plant (42), the first low-level (stack-gas) economizer (41) and the second low-level (stack-gas) economizer (42) are respectively used to heating vapour Electricity Federation and drive turbine high-pressure feedwater And condensate.
2. small machine cold end waste heat comprehensive utilization system is driven in thermal power plant blower fan vapour Electricity Federation according to claim 1, it is special Levy and be:First air heater (5) and Secondary Air heater (6), First air heater (5) and two are connected in closed cycle water route Secondary wind heater (6) is connected in the cooling circulating water water route that turbine condenser (7) is driven in vapour Electricity Federation by two branch roads, two Regulating valve and shut-off valve are respectively connected with branch road.
3. small machine cold end waste heat comprehensive utilization system is driven in thermal power plant blower fan vapour Electricity Federation according to claim 1 or 2, its It is characterised by:Enclosed expansion tank (8) and booster (10) are connected with closed cycle water route.
4. small machine cold end waste heat comprehensive utilization system is driven in thermal power plant blower fan vapour Electricity Federation according to claim 3, it is special Levy and be:Heat exchanger (9) is connected with closed cycle water route.
5. small machine cold end waste heat comprehensive utilization system is driven in thermal power plant blower fan vapour Electricity Federation according to claim 3, it is special Levy and be:Electronic gas proportioning damper is mounted in the flue and air preheater gas bypass of heat power plant boiler (2) Door (3).
6. small machine cold end waste heat comprehensive utilization system is driven in thermal power plant blower fan vapour Electricity Federation according to claim 3, it is special Levy and be:Closed cycle water route, heat power plant boiler (2) exhanst gas outlet, inlet air of boiler mouthful are mounted on temperature transmitter.
7. small machine cold end waste heat comprehensive utilization system is driven in thermal power plant blower fan vapour Electricity Federation according to claim 3, it is special Levy and be:It is condensing-type that steam turbine is driven in vapour Electricity Federation.
CN201720178380.7U 2017-02-24 2017-02-24 Drive small machine cold end waste heat comprehensive utilization system in a kind of thermal power plant blower fan vapour Electricity Federation Active CN206514282U (en)

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Application Number Priority Date Filing Date Title
CN201720178380.7U CN206514282U (en) 2017-02-24 2017-02-24 Drive small machine cold end waste heat comprehensive utilization system in a kind of thermal power plant blower fan vapour Electricity Federation

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Application Number Priority Date Filing Date Title
CN201720178380.7U CN206514282U (en) 2017-02-24 2017-02-24 Drive small machine cold end waste heat comprehensive utilization system in a kind of thermal power plant blower fan vapour Electricity Federation

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CN206514282U true CN206514282U (en) 2017-09-22

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112160807A (en) * 2020-08-25 2021-01-01 光大环境科技(中国)有限公司 Incineration power generation system

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112160807A (en) * 2020-08-25 2021-01-01 光大环境科技(中国)有限公司 Incineration power generation system

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