CN203603989U - Combined heating and power system with waste heat recycling function - Google Patents

Combined heating and power system with waste heat recycling function Download PDF

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Publication number
CN203603989U
CN203603989U CN201320744475.2U CN201320744475U CN203603989U CN 203603989 U CN203603989 U CN 203603989U CN 201320744475 U CN201320744475 U CN 201320744475U CN 203603989 U CN203603989 U CN 203603989U
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China
Prior art keywords
steam
heat supply
supply network
communicated
power
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CN201320744475.2U
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Chinese (zh)
Inventor
张培华
廖光明
尉万红
杨玉环
鲍明刚
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SHANXI PINSHUO WASTE COAL POWER GENERATION Co Ltd
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SHANXI PINSHUO WASTE COAL POWER GENERATION Co Ltd
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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
    • Y02E20/14Combined heat and power generation [CHP]
    • 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
    • Y02P80/15On-site combined power, heat or cool generation or distribution, e.g. combined heat and power [CHP] supply

Abstract

The utility model belongs to the technical field of combined heating and power and particularly relates to a combined heating and power system with a waste heat recycling function. The combined heating and power system with the waste heat recycling function mainly solves the problems of insufficient heat supply and energy waste and environmental pollution caused by emission of waste steam of a steam turbine in an existing combined heating and power technology. In order to solve the technical problems, the combined heating and power system is characterized by comprising an auxiliary steam header main pipe, an electric generator, a steam exhaust device b, a peak-load calorifier, a heat supply network user, the steam turbine, an air cooling island, a steam exhaust device a, a condenser, a steam-driven small steam turbine, a booster pump and an absorption heat pump. Through the adoption of the technical scheme, the combined heating and power system with the waste heat recycling function can fully, reasonably and effectively recycle waste heat of the waste steam of the steam turbine, reduce losses of a cold source of the steam turbine, improve the generating efficiency of a whole plant and solve the problems of insufficient heat supply and environmental pollution. The combined heating and power system with the waste heat recycling function has the advantages of saving energy, reducing consumption, meeting the requirements of the heat supply network user for heat supply and preventing environmental pollution.

Description

A kind of combined hot chp system of heat recovery
Technical field
The utility model belongs to cogeneration technical field, is specifically related to a kind of combined hot chp system of heat recovery.
Background technique
Cogeneration technology is generally drawing gas as thermal source of employing steam turbine, thermotropism network users heating when driving generator generating, but along with the continuous increase of city heat supply area, the design heat capacity of cogeneration unit faces deficiency, and the discharge of turbine discharge waste heat, fume afterheat simultaneously causes a large amount of wastes and the environmental pollution of the energy.
Summary of the invention
The purpose of this utility model is the energy waste that causes of the discharge in order to solve chillout that existing cogeneration technology exists, exhaust steam in steam turbine and the problem of environmental pollution, and a kind of combined hot chp system of heat recovery is provided.
For solving the problems of the technologies described above, the technical solution adopted in the utility model is:
A kind of combined hot chp system of heat recovery, it comprises the female pipe of auxiliary vapour header, generator, steam exhaust device b, peak load calorifier and heat supply network user, also comprise steam turbine, Air-Cooling Island, steam exhaust device a, vapour condenser, the little steam turbine of steam-operating, booster pump and absorption heat pump, described heat supply network user's water outlet and the water intake of vapour condenser are communicated with by heat supply network circulation loop, the water outlet of vapour condenser is communicated with by heat supply network circulation loop with the water intake of booster pump, the water outlet of booster pump is communicated with by heat supply network circulation loop with the water intake of absorption heat pump, the water outlet of absorption heat pump is communicated with by heat supply network circulation loop with the water intake of peak load calorifier, the water outlet of peak load calorifier is communicated with by heat supply network circulation loop with heat supply network user's water intake, the exhaust steam steam-expelling port of steam turbine and the steam inlet of Air-Cooling Island and the steam inlet of vapour condenser are by exhaust steam pipeline connection, the drain opening of Air-Cooling Island drain opening and vapour condenser is communicated with by hydrophobic pipeline with steam exhaust device a, the female pipe of auxiliary vapour header is communicated with by steam pipework with the steam inlet of the little steam turbine of steam-operating and the steam inlet of peak load calorifier, the little steam turbine of steam-operating is connected by coupling with generator and booster pump, the steam ouput of the little steam turbine of steam-operating is communicated with by steam pipework with the steam inlet of absorption heat pump, the drain opening of absorption heat pump and the drain opening of peak load calorifier are communicated with by hydrophobic pipeline with steam exhaust device b.
The combined hot chp system of heat recovery of the present utility model, adopt above technological scheme, can fully, rationally and effectively recycle the waste heat of exhaust steam in steam turbine, reduce steam turbine cold source energy, improve full factory generating efficiency, solved the problem of chillout and environmental pollution simultaneously.The utlity model has advantage energy-saving and cost-reducing, that solution heat supply network user heats demand and environmental pollution.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Embodiment
As shown in drawings, the combined hot chp system of a kind of heat recovery in the present embodiment, it comprises the female pipe 5 of auxiliary vapour header, generator 7, steam exhaust device b8, peak load calorifier 11 and heat supply network user 12, also comprise steam turbine 1, Air-Cooling Island 2, steam exhaust device a3, vapour condenser 4, the little steam turbine 6 of steam-operating, booster pump 9 and absorption heat pump 10, described heat supply network user's 12 water outlet is communicated with by heat supply network circulation loop with the water intake of vapour condenser 4, the water outlet of vapour condenser 4 is communicated with by heat supply network circulation loop with the water intake of booster pump 9, the water outlet of booster pump 9 is communicated with by heat supply network circulation loop with the water intake of absorption heat pump 10, the water outlet of absorption heat pump 10 is communicated with by heat supply network circulation loop with the water intake of peak load calorifier 11, the water outlet of peak load calorifier 11 is communicated with by heat supply network circulation loop with heat supply network user 12 water intake, the steam inlet of the exhaust steam steam-expelling port of steam turbine 1 and the steam inlet of Air-Cooling Island 2 and vapour condenser 4 is by exhaust steam pipeline connection, the drain opening of Air-Cooling Island 2 drain opening and vapour condenser 4 is communicated with by hydrophobic pipeline with steam exhaust device a3, the female pipe 5 of auxiliary vapour header is communicated with by steam pipework with the steam inlet of the little steam turbine 6 of steam-operating and the steam inlet of peak load calorifier 11, the little steam turbine 6 of steam-operating is connected by coupling with generator 7 and booster pump 9, the steam ouput of the little steam turbine 6 of steam-operating is communicated with by steam pipework with the steam inlet of absorption heat pump 10, the drain opening of the drain opening of absorption heat pump 10 and peak load calorifier 11 is communicated with by hydrophobic pipeline with steam exhaust device b8.
Below in conjunction with accompanying drawing, the runnability of the combined hot chp system to above-mentioned heat recovery is described below:
Heat supply network user 12 temperature are that first the heat supply network backwater of 25~35 ℃ passes through the heat that absorbs steam turbine 1 exhaust steam in vapour condenser 4, temperature rises to 60~70 ℃, then enter in the booster pump 9 that the little steam turbine 6 of steam-operating drives and boost, reach the requirement of heat supply network pressure of supply water, enter again and in absorption heat pump 10, absorb little steam turbine 6 exhaust steam of steam-operating, the heat of other exhaust steam in steam turbine or hot-water heating backwater, temperature rises to 80~90 ℃, finally enter the heat that absorbs the auxiliary vapour of the female pipe 5 of auxiliary vapour header in peak load calorifier 11, temperature rises to 100~120 ℃, reach the requirement of heat supply network supply water temperature, supply with heat supply network user 12, the little steam turbine 6 of steam-operating also drives generator 7 work generatings in driving booster pump 9 to work.
The working steam of the little steam turbine 6 of above-mentioned steam-operating is by the female pipe 5 of auxiliary vapour header, and the high temperature heat source of absorption heat pump 10 is from the exhaust steam of the little steam turbine 6 of steam-operating, and the low-temperature heat source of absorption heat pump 10 is exhaust steam in steam turbine or the hot-water heating backwater from other unit by AB direction.
Above-mentioned steam turbine 1 enters the exhaust steam amount of Air-Cooling Island 2 under the prerequisite that assurance Air-Cooling Island in winter 2 does not freeze and fan does not turn, the exhaust steam interior heating heat supply network of vapour condenser 4 circulating water that enters as much as possible.
Above-mentioned vapour condenser 4 and Air-Cooling Island 2 are hydrophobic to steam exhaust device a3, absorption heat pump 10 high temperature heat sources are hydrophobic and peak load calorifier 11 is hydrophobic to steam exhaust device b8, absorption heat pump 10 low-temperature heat sources are hydrophobic to venting gas appliance b8 by CD direction during from the exhaust steam in steam turbine of other unit, and low-temperature heat source circulates to plumbing pipe by CD direction is hydrophobic during from hot-water heating backwater.

Claims (1)

1. the combined hot chp system of a heat recovery, it comprises the female pipe of auxiliary vapour header (5), generator (7), steam exhaust device b(8), peak load calorifier (11) and heat supply network user (12), it is characterized in that: also comprise steam turbine (1), Air-Cooling Island (2), steam exhaust device a(3), vapour condenser (4), the little steam turbine of steam-operating (6), booster pump (9) and absorption heat pump (10), described heat supply network user's (12) water outlet is communicated with by heat supply network circulation loop with the water intake of vapour condenser (4), the water outlet of vapour condenser (4) is communicated with by heat supply network circulation loop with the water intake of booster pump (9), the water outlet of booster pump (9) is communicated with by heat supply network circulation loop with the water intake of absorption heat pump (10), the water outlet of absorption heat pump (10) is communicated with by heat supply network circulation loop with the water intake of peak load calorifier (11), the water outlet of peak load calorifier (11) is communicated with by heat supply network circulation loop with heat supply network user's (12) water intake, the steam inlet of the steam inlet of the exhaust steam steam-expelling port of steam turbine (1) and Air-Cooling Island (2) and vapour condenser (4) is by exhaust steam pipeline connection, the drain opening of Air-Cooling Island (2) drain opening and vapour condenser (4) and steam exhaust device a(3) be communicated with by hydrophobic pipeline, the female pipe of auxiliary vapour header (5) is communicated with by steam pipework with the steam inlet of the little steam turbine of steam-operating (6) and the steam inlet of peak load calorifier (11), the little steam turbine of steam-operating (6) is connected by coupling with generator (7) and booster pump (9), the steam ouput of the little steam turbine of steam-operating (6) is communicated with by steam pipework with the steam inlet of absorption heat pump (10), the drain opening of the drain opening of absorption heat pump (10) and peak load calorifier (11) and steam exhaust device b(8) be communicated with by hydrophobic pipeline.
CN201320744475.2U 2013-11-22 2013-11-22 Combined heating and power system with waste heat recycling function Active CN203603989U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201320744475.2U CN203603989U (en) 2013-11-22 2013-11-22 Combined heating and power system with waste heat recycling function

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Application Number Priority Date Filing Date Title
CN201320744475.2U CN203603989U (en) 2013-11-22 2013-11-22 Combined heating and power system with waste heat recycling function

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104501275A (en) * 2014-12-21 2015-04-08 中国能源建设集团山西省电力勘测设计院 Stepped heating and supplying system sufficiently utilizing waste heat of power plant
CN106224023A (en) * 2016-07-26 2016-12-14 西安交通大学 A kind of combined cycle indirect air cooling system
CN106988813A (en) * 2017-05-15 2017-07-28 华电电力科学研究院 The system and method that a kind of utilization waste heat drives process equipment

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104501275A (en) * 2014-12-21 2015-04-08 中国能源建设集团山西省电力勘测设计院 Stepped heating and supplying system sufficiently utilizing waste heat of power plant
CN106224023A (en) * 2016-07-26 2016-12-14 西安交通大学 A kind of combined cycle indirect air cooling system
CN106224023B (en) * 2016-07-26 2019-02-05 西安交通大学 A kind of combined cycle indirect air cooling system
CN106988813A (en) * 2017-05-15 2017-07-28 华电电力科学研究院 The system and method that a kind of utilization waste heat drives process equipment
CN106988813B (en) * 2017-05-15 2019-04-09 华电电力科学研究院 A kind of system and method using waste heat driving process equipment

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