CN201779764U - Heat supply system by utilizing extracted steam in bleeder turbine to drive heat pump - Google Patents

Heat supply system by utilizing extracted steam in bleeder turbine to drive heat pump Download PDF

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Publication number
CN201779764U
CN201779764U CN 201020183874 CN201020183874U CN201779764U CN 201779764 U CN201779764 U CN 201779764U CN 201020183874 CN201020183874 CN 201020183874 CN 201020183874 U CN201020183874 U CN 201020183874U CN 201779764 U CN201779764 U CN 201779764U
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China
Prior art keywords
heat
links
pump
inlet
outlet
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Expired - Lifetime
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CN 201020183874
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Chinese (zh)
Inventor
张军
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Shenyang Huayu Ground-Source Heat Pump Heating Co., Ltd.
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Beijing Zhongke Huayu Energy Technology Development Co Ltd
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Priority to CN 201020183874 priority Critical patent/CN201779764U/en
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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
    • Y02BCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B30/00Energy efficient heating, ventilation or air conditioning [HVAC]
    • Y02B30/52Heat recovery pumps, i.e. heat pump based systems or units able to transfer the thermal energy from one area of the premises or part of the facilities to a different one, improving the overall efficiency

Abstract

The utility model relates to a heat supply system by utilizing extracted steam in a bleeder turbine to drive a heat pump and belongs to the technical field of heat supply. The system mainly comprises a boiler, the bleeder turbine, a condenser, a cooling water tower, a circulating water pump, a condensing water pump, a low-pressure bleeder heater, a deaerator, a chemical water processor and a high-pressure bleeder heater, and is characterized in that an industrial steam turbine, the open type heat pump and a heat exchanger are also included. The system can reclaim the energy taken by circulating cooling water through the heat pump; and the steam is directly utilized to drive the heat pump, part of energy of exhaust steam is used for heating circulating water in a heating pipe network, and the other part of the energy goes back to the boiler along with condensed water, so that no energy is released for nothing, and the heat loss is minimized.

Description

The system that utilizes the steam drive heat pump extracted out in the extraction turbine to carry out heat supply
Technical field
The utility model belongs to the heat supply process field, particularly carries out the system of heat supply with the steam drive heat pump of extracting out in the extraction turbine.
Background technology
At present a lot of steam power plants adopt extraction turbine to carry out cogeneration of heat and power, thereby from steam turbine, extract a part of steam out and provide heat supply for the user by the recirculated water that heat-exchanger rig heats heating network, the then pushing turbine generating of all the other steam, the steam of these pushing turbine generatings becomes the exhaust steam that can not do work again after by steam turbine acting generating, being recycled water quench during by condenser is to get back to boiler behind the aqueous water, and recirculated cooling water is taken away the heat in these exhaust steam by cooling tower and is discharged in the atmosphere.
The existing system that utilizes the steam power plant that extraction turbine carries out cogeneration of heat and power as shown in Figure 1, this system comprises: boiler 1, extraction turbine 2, condenser 3, cooling tower 4, water circulating pump 5, condensate pump 6, low pressure bleeder heater 7, oxygen-eliminating device 8, Water Treatment device 9, high pressure bleeder heater 10, heat supply network heating heat exchanger 11; Its annexation is: the vapor outlet port of boiler 1 links to each other with the inlet of extraction turbine 2, and first outlet 21 of extraction turbine 2 links to each other with the inlet 31 of condenser 3, and second of extraction turbine 2 exports 22 and links to each other with the inlet of heat supply network heating heat exchanger 11; The outlet 32 of condenser 3 links to each other with the inlet of condensate pump 6; The outlet of condensate pump 6 links to each other with low pressure bleeder heater 7, oxygen-eliminating device 8, high pressure bleeder heater 10 successively; Oxygen-eliminating device 8 also links to each other with the outlet of Water Treatment device 9; Two other of condenser 3 imported and exported with cooling tower 4, water circulating pump 5 and connected into a cooling water circulation loop; Heat supply network heating heat exchanger 11 also links to each other with the outlet 32 of condenser 3.
The course of work of said system is: the steam that boiler 1 produces enters extraction turbine 2, extraction turbine 2 has two outlets: 21 primary outlets for the steam that is used to generate electricity, 22 is extraction opening, the steam that is used to generate electricity becomes after pushing turbine 2 generating and enters condenser 3 after the exhaust steam that can not do work is come out by primary outlet 21, in condenser 3, be recycled water quench and be liquid condensed water, these condensed waters enter by condensate pump 6 and enter oxygen-eliminating device 8 after low pressure bleeder heater 7 is heated, in oxygen-eliminating device 8, enter high pressure bleeder heater 10 after the deoxygenation, entered boiler after the heating once more in high pressure bleeder heater 10, the steam of extracting out from the extraction opening 22 of extraction turbine 2 enters heat supply network heating heat exchanger 11 water the heating network is heated.And the heat of a large amount of low taste that exhaust steam contained that the steam that is used for generating electricity forms in pushing turbine 2 generating back is recycled cooling water and takes away, and discharges into the atmosphere by cooling tower 4.
Because at present the maximal efficiency of steam turbine has only about 40%, the heat energy in the steam only has and changes useful electric energy about 40% into, and all the other 60% retains in the exhaust steam, and these energy recirculated water that is cooled is taken away, and is discharged in the atmosphere by cooling tower at last.Like this, not only a large amount of heat energy are discharged in the atmosphere, cause the significant wastage of energy and to the thermal pollution of air, and because cooling circulating water evaporation in a large number the time through cooling tower, cause a large amount of wastes of water resource, the water circulating pump of cooling water and the blower fan of cooling tower also will consume a large amount of electric energy simultaneously.
Summary of the invention
The purpose of this utility model is for overcoming the weak point of prior art, a kind of system with the steam drive heat pump heat supply of extracting out in the extraction turbine is proposed, can reclaim by heat pump on the one hand and be recycled the energy (heat energy in the exhaust steam that can not do work again just) that cooling water is taken away, directly drive heat pump with steam on the other hand, energy part in the exhaust steam is used to heat the recirculated water of heating network, another part is along with condensed water is got back in the boiler, do not have energy to be discharged in vain, thermal loss is reduced.
The utility model proposes the heating system of utilizing the steam drive heat pump of extracting out in the extraction turbine, this system mainly comprises: boiler, extraction turbine, condenser, cooling tower, water circulating pump, condensate pump, low pressure bleeder heater, oxygen-eliminating device, Water Treatment device, high pressure bleeder heater; It is characterized in that, also comprise industrial steam turbine, the open-type heat pump, heat exchanger, wherein: the outlet of boiler links to each other with the inlet of extraction turbine, the primary outlet of extraction turbine links to each other with the heat of condenser inlet, the heat outlet of condenser links to each other with the inlet of condensate pump, the cold outlet of condenser links to each other with the cold inlet of open-type heat pump with the inlet of cooling tower respectively, the outlet of cold outlet of open-type heat pump and cooling tower all links to each other with the inlet of water circulating pump, the recirculated water delivery side of pump links to each other with the cold inlet of condenser, the condensate water delivery side of pump successively with the low pressure bleeder heater, oxygen-eliminating device, the high pressure bleeder heater links to each other, and the outlet of high pressure bleeder heater links to each other with the inlet of boiler; Oxygen-eliminating device also links to each other with the Water Treatment device; The extraction opening of extraction turbine links to each other with the industrial steam turbine inlet, the industrial steam turbine outlet links to each other with the heat inlet of heat exchanger, the heat outlet of heat exchanger links to each other with the inlet of condensate pump, the cold inlet of heat exchanger links to each other with the outlet of the heat of open-type heat pump, the heat inlet of open-type heat pump links to each other with the heating network backwater, and the cold outlet of heat exchanger is supplied water with heating network and linked to each other; Industrial steam turbine links to each other with the open-type heat pump by shaft joint.
Technical characterstic of the present utility model and beneficial effect:
The utility model has been done improvement on the basis of above-mentioned power plant original system: increased industrial steam turbine, open-type heat pump and heat exchanger.The utility model system can reclaim by heat pump on the one hand and be recycled the energy that cooling water is taken away, directly drive heat pump with steam on the other hand, energy part in the exhaust steam is used to heat the recirculated water of heating network, another part is along with condensed water is got back in the boiler, do not have energy to be discharged in vain, make the thermal loss minimum.
Description of drawings
Fig. 1 is conventional extraction turbine power generation and heat supply system architecture and workflow schematic diagram.
Fig. 2 carries out the structure and the workflow schematic diagram of the system of heat supply for the steam drive heat pump of extracting out with extraction turbine of the present utility model.
The specific embodiment
The method structure drawings and Examples that the steam drive heat pump with the extraction turbine extraction that the utility model proposes carries out heat supply are described in detail as follows:
Structure of the present utility model as shown in Figure 2, this system mainly comprises: boiler 1, extraction turbine 2, condenser 3, cooling tower 4, water circulating pump 5, condensate pump 6, low pressure bleeder heater 7, oxygen-eliminating device 8, Water Treatment device 9, high pressure bleeder heater 10; It is characterized in that, also comprise industrial steam turbine 12, open-type heat pump 13, heat exchanger 14, its annexation is: the outlet of boiler 1 links to each other with the inlet of extraction turbine 2, the outlet 21 of extraction turbine 2 is the primary outlet of the steam that is used to generate electricity, link to each other with the heat inlet 31 of condenser 3, the heat of condenser 3 outlet 32 links to each other with the inlet of condensate pump 6, the cold outlet 33 of condenser 3 links to each other with open-type heat pump 13 cold inlets 131 with the inlet of cooling tower 4 respectively, the outlet of 13 cold outlets 132 of open-type heat pump and cooling tower 4 all links to each other with the inlet of water circulating pump 5, the outlet of water circulating pump 5 links to each other with the cold inlet 34 of condenser 3, the outlet of condensate pump 6 successively with low pressure bleeder heater 7, oxygen-eliminating device 8, high pressure bleeder heater 10 links to each other, and the outlet of high pressure bleeder heater 10 links to each other with the inlet of boiler; Oxygen-eliminating device 8 also links to each other with Water Treatment device 9; The extraction opening 22 of extraction turbine 2 is an extraction opening, link to each other with the inlet of industrial steam turbine 12, the outlet of industrial steam turbine 12 links to each other with the heat inlet 141 of heat exchanger 14, the heat of heat exchanger 14 outlet 142 links to each other with the inlet of condensate pump 6, the cold inlet 143 of heat exchanger 14 links to each other with the heat of open-type heat pump 13 outlet 134, the heat of open-type heat pump 13 inlet 133 links to each other with the heating network backwater, and the cold outlet 144 of heat exchanger 14 links to each other with heating network water supply.Industrial steam turbine 12 links to each other with open-type heat pump 13 by (himself has) shaft joint.
Its course of work is: the steam of extracting out from the extraction opening of extraction turbine enters industrial steam turbine, industrial steam turbine drives the open-type source pump, the cold import that the cooling circulating water that is come out by the cold outlet of condenser enters the open-type heat pump, come out to get back to condenser from the cold outlet of heat pump after being cooled by water circulating pump, backwater enters heat pump from the hot import of heat pump once more, be heated and enter heat exchanger after back heat from heat pump exports out, come out to enter the heat supply network heat supply after the heating once more.Like this, can reclaim by heat pump on the one hand and be recycled the energy (heat energy in the exhaust steam that can not do manual work again just) that cooling water is taken away, directly drive heat pump with steam on the other hand, energy part in the exhaust steam is used to heat the recirculated water of heating network, another part is along with condensed water is got back in the boiler, do not have energy to be discharged in vain, make the thermal loss minimum.
The embodiment of the utility model capital equipment is respectively described below:
1) boiler 1: power plant has boiler now
2) extraction turbine 2: the existing steam turbine of power plant, extract the steam turbine that steam is supplied with hot user out from intergrade, and extraction pressure is decided according to user's the needs and the requirement of product line, can adjust within the specific limits.
3) condenser 3, cooling tower 4, water circulating pump 5, condensate pump 6, low pressure bleeder heater 7, oxygen-eliminating device 8, Water Treatment device 9, high pressure bleeder heater 10 are the existing equipment of power plant.
4) industrial steam turbine 12, are the rotary power machinery that the power conversion of steam is become mechanical power, are conventional heat supply products, and himself has shaft joint.
5) the open-type heat pump 13:
Heat pump is the principle according to contrary Carnot cycle, by importing a spot of high-grade energy, from a kind of device of occurring in nature extraction low-grade energy, is a kind of matured product.
6) heat exchanger 14:
A kind of heat exchanger is matured product, can utilize water that steam is cooled to water by it.

Claims (1)

1. system that utilizes the steam drive heat pump extracted out in the extraction turbine to carry out heat supply, this system mainly comprises: boiler, extraction turbine, condenser, cooling tower, water circulating pump, condensate pump, low pressure bleeder heater, oxygen-eliminating device, Water Treatment device, high pressure bleeder heater; It is characterized in that, also comprise industrial steam turbine, the open-type heat pump, heat exchanger, wherein: the outlet of boiler links to each other with the inlet of extraction turbine, the primary outlet of extraction turbine links to each other with the heat of condenser inlet, the heat outlet of condenser links to each other with the inlet of condensate pump, the cold outlet of condenser links to each other with the cold inlet of open-type heat pump with the inlet of cooling tower respectively, the outlet of cold outlet of open-type heat pump and cooling tower all links to each other with the inlet of water circulating pump, the recirculated water delivery side of pump links to each other with the cold inlet of condenser, the condensate water delivery side of pump successively with the low pressure bleeder heater, oxygen-eliminating device, the high pressure bleeder heater links to each other, and the outlet of high pressure bleeder heater links to each other with the inlet of boiler; Oxygen-eliminating device also links to each other with the Water Treatment device; The extraction opening of extraction turbine links to each other with the industrial steam turbine inlet, the industrial steam turbine outlet links to each other with the heat inlet of heat exchanger, the heat outlet of heat exchanger links to each other with the inlet of condensate pump, the cold inlet of heat exchanger links to each other with the outlet of the heat of open-type heat pump, the heat inlet of open-type heat pump links to each other with the heating network backwater, and the cold outlet of heat exchanger is supplied water with heating network and linked to each other; Industrial steam turbine links to each other with the open-type heat pump by shaft joint.
CN 201020183874 2010-04-30 2010-04-30 Heat supply system by utilizing extracted steam in bleeder turbine to drive heat pump Expired - Lifetime CN201779764U (en)

Priority Applications (1)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101871674A (en) * 2010-04-30 2010-10-27 北京中科华誉能源技术发展有限责任公司 System for supplying heat by utilizing steam extracted from extraction steam turbine to drive heat pump
CN105972681A (en) * 2016-05-27 2016-09-28 沈阳建筑大学 Water source heat pump-steam turbine and heat supply network complementary combined heating supply system

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101871674A (en) * 2010-04-30 2010-10-27 北京中科华誉能源技术发展有限责任公司 System for supplying heat by utilizing steam extracted from extraction steam turbine to drive heat pump
CN105972681A (en) * 2016-05-27 2016-09-28 沈阳建筑大学 Water source heat pump-steam turbine and heat supply network complementary combined heating supply system
CN105972681B (en) * 2016-05-27 2019-05-28 沈阳建筑大学 Water resource heat pump-steam turbine combining heating system complementary with heat supply network

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Legal Events

Date Code Title Description
C14 Grant of patent or utility model
GR01 Patent grant
EE01 Entry into force of recordation of patent licensing contract

Assignee: Shenyang Huayu Ground-Source Heat Pump Heating Co., Ltd.

Assignor: Beijing Zhongke Huayu Energy Technology Development Co., Ltd.

Contract record no.: 2011110000142

Denomination of utility model: System for supplying heat by utilizing steam extracted from extraction steam turbine to drive heat pump

Granted publication date: 20110330

License type: Exclusive License

Record date: 20110819

C41 Transfer of patent application or patent right or utility model
TR01 Transfer of patent right

Effective date of registration: 20110916

Address after: 110027 Shenyang City Yuhong District Ji Li Lake Street No. 36-4 3-3-8

Patentee after: Shenyang Huayu Ground-Source Heat Pump Heating Co., Ltd.

Address before: 100190 Beijing, Zhongguancun, building two, floor 333, No.

Patentee before: Beijing Zhongke Huayu Energy Technology Development Co., Ltd.

ASS Succession or assignment of patent right

Owner name: SHENYANG HUAYU GROUND SOURCE HEAT PUMP HEATING CO.

Free format text: FORMER OWNER: BEIJING ZHONGKE HUAYU ENERGY TECHNOLOGY DEVELOPMENT CO., LTD.

Effective date: 20110916

COR Change of bibliographic data

Free format text: CORRECT: ADDRESS; FROM: 100190 HAIDIAN, BEIJING TO: 110027 SHENYANG, LIAONING PROVINCE

CX01 Expiry of patent term
CX01 Expiry of patent term

Granted publication date: 20110330