CN201568085U - Cogeneration device for directly recycling waste heat of exhaust steam from power station steam turbine with absorption type heat pump - Google Patents
Cogeneration device for directly recycling waste heat of exhaust steam from power station steam turbine with absorption type heat pump Download PDFInfo
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- CN201568085U CN201568085U CN 200920351179 CN200920351179U CN201568085U CN 201568085 U CN201568085 U CN 201568085U CN 200920351179 CN200920351179 CN 200920351179 CN 200920351179 U CN200920351179 U CN 200920351179U CN 201568085 U CN201568085 U CN 201568085U
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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
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
- Y02B30/52—Heat 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 cogeneration system for directly recycling waste heat of exhaust steam from power station steam turbine with absorption type heat pump, which is used for recycling the waste heat of the exhaust steam from the power station steam turbine. The utility model comprises a power plant boiler (1), a steam turbine (2), a generator (3), a steam turbine exhaust steam pipe (4), a direct air cooling condenser (20), a cooling fan (21), an exhaust steam condensate pump (8), a steam extraction condensate return boiler pipe (9), an absorption type heat pump (10), a hot water return pipe (11), a hot water outtake pipe (12) and a steam turbine steam extraction pipe (13). The absorption type heat pump (10) comprises a generator (14), a condenser (15), an absorber (16) and an evaporator (17). The utility model is characterized in that a low-pressure steam pipe from the steam turbine (2) is divided into two ways that one is connected with the direct air cooling condenser (20) by the steam turbine exhaust steam pipe (4) and the other thereof with the evaporator (17) of the absorption type heat pump (10) by a steam turbine exhaust steam intake evaporator pipe (19). The utility model can more effectively recycle the condensation heat of the low-grade exhaust steam in the power station, based on no change to the back pressure of the exhaust steam, which reduces the temperature loss, increases the hot water supply temperature, and decreases the system investment and the operating cost.
Description
(1) technical field
The utility model relates to a kind of absorption heat pump and directly reclaims power station steam turbine exhausted spare heat cogenerator.Be used to reclaim the power station steam turbine exhausted spare heat.
(2) background technique
Hot water pipe nets such as China's winter heating, concentrated supply of heating in the city, production technology central heat supply adopt thermoelectricity plant's cogeneration central heat supply pattern under many circumstances.Even under the heat supply operating mode, the low-grade exhausted spare heat behind a large amount of steam turbine power generations is also arranged owing to can't utilize, be discharged in the atmosphere by circulating water (generally passing through cooling tower) or air cooling system, influence the overall efficiency of using energy source.
As shown in Figure 1, at present central heat supply hot water generally adopts the medium pressure steam that power plant steam turbine extracts (be generally 0.3～1.0MPa) by the direct heat hot water central heat supply of vapor-water heat exchanger, the low-grade exhausted spare heat behind the steam turbine power generation can't utilize.In order effectively to utilize exhausted spare heat, also has a kind of mode at present as shown in Figure 2, adopt the remaining hot water system to extract that (the water-cooled unit directly adopts cooling circulating water system by condenser the waste heat of turbine discharge, air cooling system need be set up condenser, waste heat water pump and respective line system etc.), adopt the absorption heat pump technology (to be generally 0.3～1.0MPa) driving by drawing gas of steam turbine, extraction enters the remaining hot water heat of absorption heat pump vaporizer, heating central heat supply hot water, realize that the turbine discharge waste heat extracts, realize energy-saving benefit, the required distance of this kind mode absorption type heat pump assembly and turbine discharge system is not high, can far can be near, relatively flexibly.But this kind extracts the turbine discharge waste heat indirectly by remaining hot water, can increase the power consumption of remaining hot water system investment (particularly to air cooling system), water pump, because the temperature loss that steam discharge and remaining hot water heat exchange cause influences unfavorable factors such as central heat supply water temperature liter.
(3) summary of the invention
The purpose of this utility model is to overcome above-mentioned deficiency, provide a kind of effective recycling more power station low-grade steam discharge heat of condensation, reduce temperature loss not changing under the steam discharge back pressure prerequisite, improve the hot water supply water temperature, the absorption heat pump of investment of minimizing system and operating cost directly reclaims power station steam turbine exhausted spare heat cogenerator.
The purpose of this utility model is achieved in that a kind of absorption heat pump directly reclaims power station steam turbine exhausted spare heat cogenerator, comprise boiler of power plant, steam turbine, generator, the turbine discharge pipe, direct air condensed steam device, cooling blower, the steam discharge condensate pump, water twice-cooked stir-frying boiler tube with fixed attention draws gas, absorption heat pump, hot water return pipe, hot water outlet pipe and extracted steam from turbine pipe, described absorption heat pump comprises generator, condenser, adsorber and vaporizer, be characterized in the low pressure steam pipe that steam turbine is discharged is divided into two the tunnel, the turbine discharge pipe of leading up to links to each other with direct air condensed steam device, and another road is advanced evaporator tube by turbine discharge and linked to each other with the vaporizer of absorption heat pump.
The beneficial effects of the utility model are:
The utility model adopts the absorption heat pump technology to reclaim the turbine discharge heat of condensation, utilize (general 0.3～1.0MPa) steam (the 60% left and right sides heat) driving of drawing gas of steam turbine, power station steam turbine is discharged low pressure steam and is directly entered absorption heat pump vaporizer heat exchange in-tube condensation by pipeline, reclaim steam discharge heat of condensation (40% left and right sides heat), for production technology and life provide central heat supply hot water (100% heat), heat-exchange system in the middle of saving is gone, minimizing system investment (for air cooling system) and water pump power consumption, eliminate the heat exchange temperature loss, make the easier utilization of exhausted spare heat, improve cogeneration central heating system comprehensive energy utilization ratio.Improve maximum heat capacity about 70% not increasing under the thermal source situation, realize economic benefit and social benefits such as dilatation, energy-conservation, reduction of discharging.Because generating back steam turbine exhaust pressure is low, is not suitable for remote conveying, above scheme is suitable for absorption heat pump unit and is placed on the occasion nearer apart from exhaust steam pipe.
(4) description of drawings
Fig. 1 was for passed through the direct heat hot water central heating system of vapor-water heat exchanger schematic representation in the past.
Fig. 2 reclaimed power station steam turbine exhausted spare heat cogeneration system schematic representation for adopt absorption heat pump in the past.
Fig. 3 directly reclaims power station steam turbine exhausted spare heat cogenerator schematic representation for the utility model absorption heat pump.
Among the figure:
Boiler of power plant 1, steam turbine 2, generator 3, turbine discharge pipe 4, steam discharge condensate pump 8, water twice-cooked stir-frying boiler tube 9 with fixed attention draws gas, absorption heat pump 10, hot water return pipe 11, the hot water outlet pipe 12, extracted steam from turbine pipe 13, generator 14, condenser 15, adsorber 16, vaporizer 17, the steam discharge water of condensation goes out evaporator pump 18, turbine discharge advances evaporator tube 19, direct air condensed steam device 20, cooling blower 21, steam-water heat exchanging unit 22, circulating water goes out evaporator tube 23, circulating water advances evaporator tube 24.
(5) embodiment
Be illustrated in figure 3 as the power plant that adopts air directly to cool off turbine discharge, adopt absorption heat pump directly to reclaim power station steam turbine exhausted spare heat cogenerator schematic representation.It goes out evaporator pump 18 and turbine discharge by boiler of power plant 1, steam turbine 2, generator 3, turbine discharge pipe 4, direct air condensed steam device 20, cooling blower 21, steam discharge condensate pump 8, draw gas with fixed attention water twice-cooked stir-frying boiler tube 9, absorption heat pump 10, hot water return pipe 11, hot water outlet pipe 12, extracted steam from turbine pipe 13, steam discharge water of condensation and advances the absorption heat pump that evaporator tube 19 and control system (not shown) etc. constitute and directly reclaim power station steam turbine exhausted spare heat cogenerator.Described absorption heat pump 10 is made up of generator 14, condenser 15, adsorber 16 and vaporizer 17.Be characterized in the low pressure steam pipe that steam turbine is discharged is divided into two the tunnel, the turbine discharge pipe 4 of leading up to links to each other with direct air condensed steam device 20, and another road is advanced evaporator tube 19 (can be single or many) by turbine discharge and linked to each other with absorption heat pump vaporizer 17.When the heat supply operating mode is moved, extract with extracted steam from turbine pipe 13 and (to be generally 0.3～1.0MPa) steam enters absorption heat pump as driving heat source generator 14 heat releases.Turbine discharge advances in the heat exchanging tube of vaporizer 17 that evaporator tube 19 preferentially enters absorption heat pump to condense by turbine discharge, extract the turbine discharge waste heat, the hot water that adds heat absorber and condenser by absorption type heat pump system, realize the turbine discharge heat recovery, for production technology and life provide central heat supply hot water.The residue low pressure steam that can't all utilize enters be cooled circulating water cooling of direct air condensed steam device 20.
Above absorption heat pump reclaims directly that absorption heat pump can be single cover or many covers in the scheme of power station steam turbine exhausted spare heat cogenerator.Can be single-effect type absorption heat pump, dual effect absorption heat pump, two-stage type absorption heat pump.
Claims (3)
1. an absorption heat pump directly reclaims power station steam turbine exhausted spare heat cogenerator, comprise boiler of power plant (1), steam turbine (2), generator (3), turbine discharge pipe (4), direct air condensed steam device (20), cooling blower (21), steam discharge condensate pump (8), water twice-cooked stir-frying boiler tube (9) with fixed attention draws gas, absorption heat pump (10), hot water return pipe (11), hot water outlet pipe (12) and extracted steam from turbine pipe (13), described absorption heat pump (10) comprises generator (14), condenser (15), adsorber (16) and vaporizer (17), it is characterized in that the low pressure steam pipe that steam turbine (2) is discharged is divided into two the tunnel, the turbine discharge pipe (4) of leading up to links to each other with direct air condensed steam device (20), and another road is advanced evaporator tube (19) by turbine discharge and linked to each other with the vaporizer (17) of absorption heat pump (10).
2. a kind of absorption heat pump according to claim 1 directly reclaims power station steam turbine exhausted spare heat cogenerator, it is characterized in that described absorption heat pump (10) is single cover or many covers.
3. a kind of absorption heat pump according to claim 1 and 2 directly reclaims power station steam turbine exhausted spare heat cogenerator, it is characterized in that described absorption heat pump (10) is single-effect type absorption heat pump, dual effect absorption heat pump or two-stage type absorption heat pump.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200920351179 CN201568085U (en) | 2009-12-21 | 2009-12-21 | Cogeneration device for directly recycling waste heat of exhaust steam from power station steam turbine with absorption type heat pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200920351179 CN201568085U (en) | 2009-12-21 | 2009-12-21 | Cogeneration device for directly recycling waste heat of exhaust steam from power station steam turbine with absorption type heat pump |
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| Publication Number | Publication Date |
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| CN201568085U true CN201568085U (en) | 2010-09-01 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 200920351179 Expired - Fee Related CN201568085U (en) | 2009-12-21 | 2009-12-21 | Cogeneration device for directly recycling waste heat of exhaust steam from power station steam turbine with absorption type heat pump |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101968236A (en) * | 2010-09-03 | 2011-02-09 | 北京中科华誉能源技术发展有限责任公司 | System for realizing combined heating based on extraction steam for heating and lithium bromide unit |
| CN102062472A (en) * | 2011-01-06 | 2011-05-18 | 双良节能系统股份有限公司 | Heat supplying system capable of directly recovering sewage flash steam residual heat by utilizing absorption heat pump set |
| CN102721094A (en) * | 2012-06-14 | 2012-10-10 | 华电电力科学研究院 | Heating system for recycling waste heat of open circulating water in power plant |
-
2009
- 2009-12-21 CN CN 200920351179 patent/CN201568085U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101968236A (en) * | 2010-09-03 | 2011-02-09 | 北京中科华誉能源技术发展有限责任公司 | System for realizing combined heating based on extraction steam for heating and lithium bromide unit |
| CN102062472A (en) * | 2011-01-06 | 2011-05-18 | 双良节能系统股份有限公司 | Heat supplying system capable of directly recovering sewage flash steam residual heat by utilizing absorption heat pump set |
| CN102721094A (en) * | 2012-06-14 | 2012-10-10 | 华电电力科学研究院 | Heating system for recycling waste heat of open circulating water in power plant |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: SHUANGLIANG ECO-ENERGEY SYSTEMS CO.,LTD. Free format text: FORMER OWNER: SHUANGLIANG AIR CONDITIONING EQUIPMENT CO LTD, JIANGSU Effective date: 20100909 |
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| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20100909 Address after: 214444 Jiangsu city of Jiangyin Province Li Town Road No. 1 West Patentee after: Shuangliang Energy Saving System Co., Ltd. Address before: 214444 Jiangsu city of Jiangyin Province Li Town Road No. 1 West Patentee before: Shuangliang Air Conditioning Equipment Co., Ltd., Jiangsu |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100901 Termination date: 20171221 |