CN203756448U - Solar combined heat and power generation based on dual-working-medium thermal cycle - Google Patents
Solar combined heat and power generation based on dual-working-medium thermal cycle Download PDFInfo
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- CN203756448U CN203756448U CN201420150853.9U CN201420150853U CN203756448U CN 203756448 U CN203756448 U CN 203756448U CN 201420150853 U CN201420150853 U CN 201420150853U CN 203756448 U CN203756448 U CN 203756448U
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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
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/40—Solar thermal energy, e.g. solar towers
- Y02E10/46—Conversion of thermal power into mechanical power, e.g. Rankine, Stirling or solar thermal engines
Abstract
The utility model discloses a solar combined heat and power generation based on a dual-working-medium thermal cycle, and belongs to the technical field of new energy solar thermal power generation. The solar combined heat and power generation based on the dual-working-medium thermal cycle comprises a conventional Rankine cycle in which steam produced directly by solar heat collection is taken as a circulating working medium, and a low-temperature organic Rankine cycle in which a part of exhaust steam in the previous cycle is taken as a heat source, and mainly comprises a solar heat collecting system, a conventional steam combined heat and power system and a low-temperature organic Rankine power generation system. Steam with a certain pressure parameter is directly produced by using a low-cost, mature and reliable low-concentration-ratio heat-collecting way to drive a thermoelectric unit to generate power and supply heat, thereby realizing solar comprehensive thermal utilization energy supply characterized by multi-energy complementation and combined cold heat and power.
Description
Technical field
The utility model proposes a kind of solar cogeneration system based on the circulation of double-work medium heating power, belong to new energy solar energy thermal-power-generating technical field.
Background technique
Solar energy is a kind of important renewable resources, and resource distribution is extensive, suitablely develop on the spot, and be the reliable fashion of human kind sustainable development.Solar energy generation technology is the major way that solar energy large-scale commercial is utilized, can be photovoltaic generation and photothermal power generation, although ten years in the past, the former has obtained the development of blasting type, but aspect sustainable, environmental friendliness, heat accumulation and conventional energy resource coupling, the latter has stronger advantage.The abundant area of China's solar energy resources mainly concentrates on the Northwest backward in economy, and huge, the conventional fossil limited energy of economically developed eastern region energy consumption.In addition, that solar energy resources has is dispersed strong, energy flux density is low, and there is daily cycle intermittence, be subject to the large characteristic of impact in region and weather, season, the be easy to get feature of middle low temperature heat energy, the heat-storage technology of current solar thermal utilization is one of bottleneck limiting its large-scale commercial application.
Current solar energy thermal-power-generating technology, according to generating parameter, has two kinds, high temperature route and middle low temperature route.According to the distribution of solar energy resources condition, on a large scale, high parameter solar energy thermal-power-generating technology is only suitable for the economic backward area remote, scarcely populated in northwest, can only carry out single generation mode, be difficult to accomplish the solar energy composite utilization of cogeneration of heat and power, power station whole efficiency is on the low side, and need to configure regenerative system huge, that involve great expense, and the electric energy sending needs independently electrical network of investment construction, grow the conveying of distance, investment, operation cost is huge.Under the hot generation technology level of current solar energy high temperature and the limited condition of help from government policy, the hot generation technology of solar energy high temperature is difficult to large-scale commercial development.
Different from high temperature route is, in solar energy, low-temperature electricity-generating route can be suited measures to local conditions, and with multiple renewable energy sources complementation, forms production capacity source station, distributed solar energy Electricity Federation, for electric energy, refrigeration and heat supply are provided in certain area, realize energy step, comprehensive utilization.Utilize low cost, the oligomeric coke ratio thermal-arrest mode of mature and reliable comparatively, directly produce Steam Actuation thermoelectricity unit acting generating, the heat supply of certain pressure parameter, the solar energy composite heating power of realizing various energy resources complementation, cold, heat and electricity triple supply utilizes energy resource supply.This pattern is very welcome in the area such as Economy Garden, offshore islands hot and cold, the eastern developed area that electric energy consumption breach is huge, and stability, practicability and the Economy of system and the market space will more be better than high temperature route pattern.
Model utility content
The utility model provides a kind of solar cogeneration system based on the circulation of double-work medium heating power, utilize low cost, the oligomeric coke ratio thermal-arrest mode of mature and reliable comparatively, the Steam Actuation thermoelectricity unit acting generating, the heat supply that directly produce certain pressure parameter, the solar energy composite heating power of realizing various energy resources complementation, cold, heat and electricity triple supply utilizes energy resource supply.
The utility model is achieved through the following technical solutions: a kind of solar cogeneration system based on the circulation of double-work medium heating power, comprises solar thermal collection system, conventional steam cogeneration system and low temperature organic Rankine power generation system.
Described solar thermal collection system comprises solar thermal collector, thermal accumulator, feed water pump and oxygen-eliminating device; The outlet of described oxygen-eliminating device is connected with the entrance of feed water pump, feedwater delivery side of pump is connected with the entrance of solar thermal collector, described solar thermal collector outlet is connected with the entrance of three-way valve group Vi, three-way valve group Vi mono-exports and is connected with thermal accumulator entrance and another outlet is connected with an entrance of three-way valve group Vo, and the outlet of thermal accumulator is connected with another entrance of three-way valve group Vo;
Described conventional steam cogeneration system comprises steam turbine and #1 generator; An outlet of described three-way valve group Vo is connected with the main inlet throttle-stop valve of steam turbine, and steam turbine valve vapor outlet is connected with the entrance of three-way valve group Vh, and an outlet of three-way valve group Vh is connected with heat distribution pipe network; Wherein steam turbine is connected with #1 generator coaxle;
Described low temperature organic Rankine power generation system comprises vaporizer, regenerator, condenser, working medium pump, organic turbine, #2 generator, retarder, cooling tower and cooling water circulating pump, another outlet of described three-way valve group Vh is connected with the device of working medium entrance of vaporizer, the device of working medium outlet of vaporizer is connected with the entrance of oxygen-eliminating device, the organic working medium outlet of vaporizer is connected with the main inlet throttle-stop valve of organic turbine, the organic working medium entrance of vaporizer is connected with the liquid side outlet of regenerator, the valve vapor outlet of organic turbine is connected with the vapour side entrance of regenerator, the vapour side outlet of regenerator is connected with the entrance of condenser, the outlet of condenser is connected with the entrance of working medium pump, working medium delivery side of pump is connected with the liquid side entrance of regenerator, the coolant outlet of condenser is connected with cooling tower upper entrance, the lower exit of cooling tower is connected with the entrance of cooling water circulating pump, the outlet of cooling water circulating pump is connected with the cooling water inlet of condenser, the output shaft of organic turbine is connected with retarder, and retarder is connected with #2 generator.
Wherein said solar thermal collector is slot type or Fresnel.
Wherein said steam turbine is back pressure type unit.
The type of wherein said thermal accumulator is steam type thermal accumulator.
The type of wherein said organic turbine is radial-flow type.
Advantage of the present utility model is as follows:
1, low-temperature heat collection in solar energy, technology maturation is reliable, and system cost is lower, easily scale engineering application.
2, solar thermal collector adopts single loop, directly produces water vapour technology, has avoided the biography heat exchange link of double loop intermediate medium.
3, double-work medium heating power circulates, and has effectively realized the cascade utilization of solar heat, and the utilization ratio of solar energy is provided.
4, solar cogeneration, is conducive to owe abundant and the high area of energy demand is applied at solar energy resources.
5, system architecture is relatively simple, and modular design is efficiently easy for installation; Can semi-automatic or automatically move, operation operation is simple and reliable.
Brief description of the drawings
Fig. 1 is a kind of solar cogeneration system based on the circulation of double-work medium heating power of the present utility model;
Wherein 1-solar thermal collector, 2-thermal accumulator, 3-steam turbine, 4-#1 generator, 5-vaporizer, 6-regenerator, the organic turbine of 7-, 8-retarder, 9-condenser, 10-cooling tower, 11-cooling water circulating pump, 12-working medium pump, 13-feed water pump, 14-oxygen-eliminating device, 15-three-way valve group Vi, 16-three-way valve group Vo, 17-three-way valve group Vh, 18-#2 generator, 19-heat distribution pipe network.
Embodiment
Below in conjunction with accompanying drawing, the utility model is described in further detail:
As shown in Figure 1: a kind of solar cogeneration system based on the circulation of double-work medium heating power of the present embodiment, comprises solar thermal collection system, conventional steam cogeneration system and low temperature organic Rankine power generation system.
Described solar thermal collection system comprises solar thermal collector 1, thermal accumulator 2, feed water pump 13 and oxygen-eliminating device 14; The outlet of described oxygen-eliminating device 14 is connected with the entrance of feed water pump 13, the outlet of feed water pump 13 is connected with the entrance of solar thermal collector 1, described solar thermal collector outlet 1 is connected with the entrance of three-way valve group Vi15, three-way valve group Vi15 mono-exports and is connected with thermal accumulator 2 entrances and another outlet is connected with an entrance of three-way valve group Vo16, and the outlet of thermal accumulator 2 is connected with another entrance of three-way valve group Vo16;
Described conventional steam cogeneration system comprises steam turbine 3 and #1 generator 4; An outlet of described three-way valve group Vo16 is connected with the main inlet throttle-stop valve of steam turbine 3, and steam turbine 3 valve vapor outlets are connected with the entrance of three-way valve group Vh17, and an outlet of three-way valve group Vh17 is connected with heat distribution pipe network 19; Wherein steam turbine 3 is coaxially connected with #1 generator 4;
Described low temperature organic Rankine power generation system comprises vaporizer 5, regenerator 6, condenser 9, working medium pump 12, organic turbine 7, #2 generator 18, retarder 8, cooling tower 10 and cooling water circulating pump 11, another outlet of described three-way valve group Vh17 is connected with the device of working medium entrance of vaporizer 5, the device of working medium outlet of vaporizer 5 is connected with the entrance of oxygen-eliminating device 14, the organic working medium outlet of vaporizer 5 is connected with the main inlet throttle-stop valve of organic turbine 7, the organic working medium entrance of vaporizer 5 is connected with the liquid side outlet of regenerator 6, the valve vapor outlet of organic turbine 7 is connected with the vapour side entrance of regenerator 6, the vapour side outlet of regenerator 6 is connected with the entrance of condenser 9, the outlet of condenser 9 is connected with the entrance of working medium pump 12, the outlet of working medium pump 12 is connected with the liquid side entrance of regenerator 6, the coolant outlet of condenser 9 is connected with cooling tower 10 upper entrances, the lower exit of cooling tower 10 is connected with the entrance of cooling water circulating pump 11, the outlet of cooling water circulating pump 11 is connected with the cooling water inlet of condenser 9, the output shaft of organic turbine 7 is connected with retarder 8, and retarder 8 is connected with #2 generator 18.
Wherein said solar thermal collector 1 is slot type or Fresnel; Described steam turbine 3 is back pressure type unit; The type of described thermal accumulator 2 is steam type thermal accumulator; The type of described organic turbine 7 is radial-flow type.
The beneficial effect of the present embodiment is: utilize low cost, the oligomeric coke ratio thermal-arrest mode of mature and reliable comparatively, the Steam Actuation thermoelectricity unit acting generating, the heat supply that directly produce certain pressure parameter, the solar energy composite heating power of realizing various energy resources complementation, cold, heat and electricity triple supply utilizes energy resource supply.
Claims (5)
1. the solar cogeneration system based on the circulation of double-work medium heating power, comprise solar thermal collection system, conventional steam cogeneration system and low temperature organic Rankine power generation system, it is characterized in that: described solar thermal collection system comprises solar thermal collector (1), thermal accumulator (2), feed water pump (13) and oxygen-eliminating device (14); The outlet of described oxygen-eliminating device (14) is connected with the entrance of feed water pump (13), the outlet of feed water pump (13) is connected with the entrance of solar thermal collector (1), the outlet of described solar thermal collector (1) and three-way valve group Vi(15) entrance be connected, three-way valve group Vi(15) outlet is connected with thermal accumulator (2) entrance and another exports and three-way valve group Vo(16) an entrance be connected, the outlet of thermal accumulator (2) and three-way valve group Vo(16) another entrance is connected;
Described conventional steam cogeneration system comprises steam turbine (3) and #1 generator (4); Described three-way valve group Vo(16) one outlet be connected with the main inlet throttle-stop valve of steam turbine (3), steam turbine (3) valve vapor outlet and three-way valve group Vh(17) entrance be connected, three-way valve group Vh(17) one export be connected with heat distribution pipe network (19); Wherein steam turbine (3) is coaxially connected with #1 generator (4);
Described low temperature organic Rankine power generation system comprises vaporizer (5), regenerator (6), condenser (9), working medium pump (12), organic turbine (7), #2 generator (18), retarder (8), cooling tower (10) and cooling water circulating pump (11), described three-way valve group Vh(17) another outlet be connected with the device of working medium entrance of vaporizer (5), the device of working medium outlet of vaporizer (5) is connected with the entrance of oxygen-eliminating device (14), the organic working medium outlet of vaporizer (5) is connected with the main inlet throttle-stop valve of organic turbine (7), the organic working medium entrance of vaporizer (5) is connected with the liquid side outlet of regenerator (6), the valve vapor outlet of organic turbine (7) is connected with the vapour side entrance of regenerator (6), the vapour side outlet of regenerator (6) is connected with the entrance of condenser (9), the outlet of condenser (9) is connected with the entrance of working medium pump (12), the outlet of working medium pump (12) is connected with the liquid side entrance of regenerator (6), the coolant outlet of condenser (9) is connected with cooling tower (10) upper entrance, the lower exit of cooling tower (10) is connected with the entrance of cooling water circulating pump (11), the outlet of cooling water circulating pump (11) is connected with the cooling water inlet of condenser (9), the output shaft of organic turbine (7) is connected with retarder (8), and retarder (8) is connected with #2 generator (18).
2. a kind of solar cogeneration system based on the circulation of double-work medium heating power according to claim 1, is characterized in that: described solar thermal collector (1) is slot type or Fresnel.
3. a kind of solar cogeneration system based on the circulation of double-work medium heating power according to claim 1, is characterized in that: described steam turbine (3) is back pressure type unit.
4. a kind of solar cogeneration system based on the circulation of double-work medium heating power according to claim 1, is characterized in that: the type of described thermal accumulator (2) is steam type thermal accumulator.
5. a kind of solar cogeneration system based on the circulation of double-work medium heating power according to claim 1, is characterized in that: the type of described organic turbine (7) is radial-flow type.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201420150853.9U CN203756448U (en) | 2014-03-31 | 2014-03-31 | Solar combined heat and power generation based on dual-working-medium thermal cycle |
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| CN201420150853.9U CN203756448U (en) | 2014-03-31 | 2014-03-31 | Solar combined heat and power generation based on dual-working-medium thermal cycle |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103850901A (en) * | 2014-03-31 | 2014-06-11 | 中国能建集团装备有限公司南京技术中心 | Solar cogeneration system and method based on double-working medium thermodynamic cycle |
| CN107916961A (en) * | 2017-11-16 | 2018-04-17 | 中国科学院广州能源研究所 | A kind of solar energy combines gradient utilization system with natural gas cold energy |
-
2014
- 2014-03-31 CN CN201420150853.9U patent/CN203756448U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103850901A (en) * | 2014-03-31 | 2014-06-11 | 中国能建集团装备有限公司南京技术中心 | Solar cogeneration system and method based on double-working medium thermodynamic cycle |
| CN103850901B (en) * | 2014-03-31 | 2017-03-01 | 中国能建集团装备有限公司南京技术中心 | Solar cogeneration system based on double-work medium thermodynamic cycle and its using method |
| CN107916961A (en) * | 2017-11-16 | 2018-04-17 | 中国科学院广州能源研究所 | A kind of solar energy combines gradient utilization system with natural gas cold energy |
| CN107916961B (en) * | 2017-11-16 | 2020-03-24 | 中国科学院广州能源研究所 | Solar energy and natural gas cold energy combined cascade utilization system |
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Granted publication date: 20140806 Termination date: 20180331 |
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| CF01 | Termination of patent right due to non-payment of annual fee |