CN201568085U - Absorption heat pump directly recovers steam turbine exhaust heat cogeneration device of power station - Google Patents
Absorption heat pump directly recovers steam turbine exhaust heat cogeneration device of power station Download PDFInfo
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- CN201568085U CN201568085U CN200920351179.XU CN200920351179U CN201568085U CN 201568085 U CN201568085 U CN 201568085U CN 200920351179 U CN200920351179 U CN 200920351179U CN 201568085 U CN201568085 U CN 201568085U
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- heat pump
- steam
- absorption heat
- steam turbine
- pipe
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- 238000010521 absorption reaction Methods 0.000 title claims abstract description 45
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 43
- 238000001816 cooling Methods 0.000 claims abstract description 12
- 239000006200 vaporizer Substances 0.000 claims description 10
- 230000009977 dual effect Effects 0.000 claims description 2
- 238000009833 condensation Methods 0.000 abstract description 7
- 230000005494 condensation Effects 0.000 abstract description 7
- 239000002918 waste heat Substances 0.000 abstract description 6
- 239000006096 absorbing agent Substances 0.000 abstract description 2
- 238000000605 extraction Methods 0.000 abstract description 2
- 238000005086 pumping Methods 0.000 abstract 1
- 238000005516 engineering process Methods 0.000 description 5
- 239000000284 extract Substances 0.000 description 5
- 239000007789 gas Substances 0.000 description 5
- 238000010438 heat treatment Methods 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000010248 power generation Methods 0.000 description 2
- 239000008400 supply water Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 230000005619 thermoelectricity Effects 0.000 description 1
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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
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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
- Y02E20/14—Combined heat and power generation [CHP]
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- Engine Equipment That Uses Special Cycles (AREA)
Abstract
本实用新型一种吸收式热泵直接回收电站汽轮机排汽余热热电联供装置，用于回收电站汽轮机排汽余热。包括电厂锅炉(1)、汽轮机(2)、发电机(3)、汽轮机排汽管(4)、直接空冷凝汽器(20)、冷却风机(21)、排汽凝水泵(8)、抽汽凝水回锅炉管(9)、吸收式热泵(10)、热水回水管(11)、热水出水管(12)和汽轮机抽汽管(13)，所述吸收式热泵(10)包括发生器(14)、冷凝器(15)、吸收器(16)和蒸发器(17)，其特点是将汽轮机(2)排出的低压蒸汽管分成二路，一路通过汽轮机排汽管(4)与直接空冷凝汽器(20)相连，另一路通过汽轮机排汽进蒸发器管(19)与吸收式热泵(10)的蒸发器(17)相连。本实用新型能更加有效回收利用电站低品位排汽冷凝热，在不改变排汽背压前提下减少温度损失，提高热水供水温度，减少系统投资和运行成本。
The utility model relates to an absorption heat pump device for directly recovering the steam exhaust waste heat of a steam turbine in a power station, which is used for recovering the steam turbine exhaust heat of a power station. Including power plant boiler (1), steam turbine (2), generator (3), steam turbine exhaust pipe (4), direct air-cooled condenser (20), cooling fan (21), exhaust steam condensate pump (8), pumping Condensed water returns to the boiler pipe (9), absorption heat pump (10), hot water return pipe (11), hot water outlet pipe (12) and steam turbine extraction pipe (13), and the absorption heat pump (10) includes Generator (14), condenser (15), absorber (16) and evaporator (17), which are characterized in that the low-pressure steam pipe discharged from the steam turbine (2) is divided into two paths, and one path passes through the steam turbine exhaust pipe (4) It is connected with the direct air-cooled condenser (20), and the other is connected with the evaporator (17) of the absorption heat pump (10) through the exhaust steam of the steam turbine into the evaporator pipe (19). The utility model can more effectively recycle and utilize the condensation heat of the low-grade exhaust steam of the power station, reduce the temperature loss without changing the back pressure of the exhaust steam, increase the temperature of the hot water supply, and reduce system investment and operating costs.
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 |
|---|---|---|---|
| CN200920351179.XU CN201568085U (en) | 2009-12-21 | 2009-12-21 | Absorption heat pump directly recovers steam turbine exhaust heat cogeneration device of power station |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920351179.XU CN201568085U (en) | 2009-12-21 | 2009-12-21 | Absorption heat pump directly recovers steam turbine exhaust heat cogeneration device of power station |
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| Publication Number | Publication Date |
|---|---|
| CN201568085U true CN201568085U (en) | 2010-09-01 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200920351179.XU Expired - Fee Related CN201568085U (en) | 2009-12-21 | 2009-12-21 | Absorption heat pump directly recovers steam turbine exhaust heat cogeneration device of power station |
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| CN (1) | CN201568085U (en) |
Cited By (4)
| 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 |
| CN115355557A (en) * | 2022-08-17 | 2022-11-18 | 国能清远发电有限责任公司 | Absorption heat pump steam turbine waste heat recovery system and control method for solar energy collection |
-
2009
- 2009-12-21 CN CN200920351179.XU patent/CN201568085U/en not_active Expired - Fee Related
Cited By (4)
| 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 |
| CN115355557A (en) * | 2022-08-17 | 2022-11-18 | 国能清远发电有限责任公司 | Absorption heat pump steam turbine waste heat recovery system and control method for solar energy collection |
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Legal Events
| 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 |
|
| 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 |