CN103939306B - A kind of two loop-type solar heat power generation systems - Google Patents
A kind of two loop-type solar heat power generation systems Download PDFInfo
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- CN103939306B CN103939306B CN201410145572.9A CN201410145572A CN103939306B CN 103939306 B CN103939306 B CN 103939306B CN 201410145572 A CN201410145572 A CN 201410145572A CN 103939306 B CN103939306 B CN 103939306B
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03G—SPRING, WEIGHT, INERTIA OR LIKE MOTORS; MECHANICAL-POWER PRODUCING DEVICES OR MECHANISMS, NOT OTHERWISE PROVIDED FOR OR USING ENERGY SOURCES NOT OTHERWISE PROVIDED FOR
- F03G5/00—Devices for producing mechanical power from muscle energy
- F03G5/06—Devices for producing mechanical power from muscle energy other than of endless-walk type
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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
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Abstract
A kind of two loop-type solar heat power generation systems, high temperature refrigerant and the primary Ioops solar energy heating subsystem stored are obtained using solar energy heating cryogenic fluid；And heat water and steam using the high temperature refrigerant, the secondary circuit steam power power generation sub-system of the steam drive Turbo-generator Set generating of a variety of different pressures and temperature is produced, the high temperature refrigerant cooling after heating is recycled to primary Ioops solar energy heating subsystem for cryogenic fluid and continues to heat；The respective independent operating of solar energy heating subsystem and steam power power generation sub-system, is independent of each other；The system fluctuation that the uncontrollable factors such as intensity of solar radiation change, cloud block are caused can be eliminated using the present invention, and can realize that Turbo-generator Set generated output can reconcile continuous and stable electric generation, improve the generating efficiency of solar heat power generation system.
Description
Technical field
The invention belongs to solar energy thermal-power-generating technical field, more particularly to a kind of two loop-types solar heat power generation system.
Background technology
Distribution of solar energy is extensive, reserves are huge, is a kind of regenerative resource of cleaning, has broad application prospects.Mesh
Preceding solar energy generation technology mainly has two kinds of forms of photovoltaic generation and solar energy thermal-power-generating.Photovoltaic generation is to utilize semiconductor devices
Photovoltaic effect solar energy is converted into electric energy, have the advantages that reliability is high, convenient for installation and maintenance, but photovoltaic generation
It is with high costs, opto-electronic conversion it is inefficient.Solar energy thermal-power-generating is to assemble solar energy using concentrator, is absorbed through absorber
After change into heat energy, produce high-temperature steam or gas enter Turbo-generator Set and produces electric energy.Compared with photovoltaic generation, solar energy
The heat generating system quality of power supply is good, reliable.
Current solar energy thermal-power-generating technology mainly has slot type, Fresnel, tower and dish-style, wherein slot type, Fresnel
Commercialized running is realized with tower, dish-style is in the experiment and demonstration stage.
Existing solar heat power generation system generally enters steam turbine power generation using a kind of steam of parameter, and thermal-arrest averagely absorbs heat
Temperature is high, adds heat loss；The working medium gateway temperature difference is small, adds the flow and power consumption of pump, finally have impact on solar heat
The generating efficiency of electricity generation system, adds operating cost.
Intensity of solar radiation is affected by environment larger, and the factor such as day alternates with night, weather and cloud block can influence to be collected into
Solar energy, cause the uncontrollable of solar heat power generation system generated output in the process of running, influence the stabilization of system operation
Property and reliability.
The content of the invention
In order to overcome the shortcoming of above-mentioned prior art, it is an object of the invention to provide a kind of two loop-types solar heat hair
Electric system, solves the uncontrollable problem of generated output in solar heat power generation system running, improves solar heat hair
The generating efficiency of electric system.
To achieve these goals, the technical solution adopted by the present invention is：
A kind of two loop-type solar heat power generation systems, including：
High temperature refrigerant and the primary Ioops solar energy heating subsystem stored are obtained using solar energy heating cryogenic fluid；And
Water and steam are heated using the high temperature refrigerant, a variety of different pressures and the steam drive turbine generator of temperature are produced
The secondary circuit steam power power generation sub-system of unit generation, the high temperature refrigerant cooling after heating is recycled to primary Ioops for cryogenic fluid
Solar energy heating subsystem continues to heat.
The primary Ioops solar energy heating subsystem includes low-temperature storage tank 1, high temperature storage tank 4 and is connected to therebetween too
Positive energy heat collecting field 3.
Pump 2 is provided between the low-temperature storage tank 1 and solar energy heat-collection field 3, cryogenic fluid is pumped into solar energy collection
Thermal field 3 is heated.
The secondary circuit steam power power generation sub-system includes steam turbine 15, condenser 14, condensation water heater 9, deoxygenation
Device 10, low pressure feed water pump 11, high pressure water pump 12, low-pressure steam generator 8, preheater 7 and high pressure steam generator 6, one time
Road high temperature refrigerant enters high pressure steam generator 6 by high temperature storage tank 4, enters back into the low-pressure steam generator 8 and preheater of parallel connection
7, condensation water heater 9 is entered back into, cryogenic fluid is eventually become and is back to low-temperature storage tank 1；High pressure water pump 12 is by oxygen-eliminating device 10
In water deliver to preheater 7, go out preheater 7 high-pressure feed water enter high pressure steam generator 6, produce HTHP overheat steam
Vapour, the main steam mouthful driving for introducing steam turbine 15 generates electricity；Water in oxygen-eliminating device 10 is delivered to low-pressure steam hair by low pressure feed water pump 11
Raw device 8, produces low-pressure superheated steam, and the low pressure filling mouth driving for introducing steam turbine 15 generates electricity；The exhaust steam for going out steam turbine 15 enters
Condenser 14, condenses into water and delivers to condensation water heater 9 wherein, and oxygen-eliminating device 10 is sent into after being heated in condensation water heater 9.
Primary Ioops working medium pump 5 is set between the high pressure steam generator 6 and high temperature storage tank 4；The condenser 14 is with coagulating
Bear water setting condensate pump 13 between heater 9.
The working medium of the primary Ioops solar energy heating subsystem is conduction oil or fused salt.
The solar energy heat-collection field 3 is groove type solar heat collecting field, Fresnel solar energy heat-collection field or tower type solar
Heat collecting field.
The condensation water heater 9 and preheater 7 are shell-and-tube heat exchanger.
The low-pressure steam generator 8 is that direct current helix tube type, Horizontal U-shaped pipe natural recirculating type or vertical U-tube are natural
It is circulating；The high pressure steam generator 6 is that direct current helix tube type, Horizontal U-shaped pipe natural recirculating type or vertical U-tube are followed naturally
Ring type.
The steam of the different pressures and temperature, is two or more.
Compared with prior art, solar heat power generation system is divided into two loops, primary Ioops solar energy heating by the present invention
Subsystem and secondary circuit steam power power generation sub-system, the respective independent operating of the two subsystems, are independent of each other, solar radiation is strong
The change of degree only influences primary Ioops solar energy heating subsystem, and the generated output of secondary circuit steam power power generation sub-system completely may be used
Control, is not influenceed by primary Ioops.By setting the solar energy field and high temperature storage tank of different capabilities in primary Ioops, when can be achieved different
Between heat accumulation, extend system generating dutation, increase operation rate；Secondary circuit produces a variety of different pressures and the steam of temperature is incorporated to
Steam turbine, improves thermoelectrical efficiency, reduces operating cost.
Brief description of the drawings
Fig. 1 is the structural representation of the present invention.
Embodiment
Describe embodiments of the present invention in detail with reference to the accompanying drawings and examples.
As shown in figure 1, two loop-types solar heat power generation system of the invention, the system includes primary Ioops solar energy heating
System and secondary circuit steam power power generation sub-system.Solar energy heating subsystem is added by the focusing sunlight of solar energy heat-collection field 3
The working medium of hot primary Ioops, obtained high temperature refrigerant is stored in high temperature storage tank 4, is used for secondary circuit；Secondary circuit steam power is sent out
Electronic system produces a variety of different pressures and the steam of temperature using primary Ioops working medium heating water and steam in high temperature storage tank 4,
Steam turbine 15 is incorporated to, driving steam turbine generating set is generated electricity, and the primary Ioops working medium after cooling is stored in low-temperature storage tank 1.One time
The respective independent operating of road solar energy heating subsystem and secondary circuit steam power power generation sub-system, is independent of each other.
Primary Ioops solar energy heating subsystem includes low-temperature storage tank 1, high temperature storage tank 4, solar energy heat-collection field 3, pump 2 and one time
Road working medium.Its workflow is that the primary Ioops working medium stored in low-temperature storage tank 1 is pumped into solar energy heat-collection field 3, solar energy collection by pump 2
The focusing sunlight of thermal field 3 heats working medium therein, and the high temperature refrigerant after heating is stored in high temperature storage tank 4.
Secondary circuit steam power power generation sub-system includes steam turbine 15, condenser 14, condensate pump 13, condensation water heater
9th, oxygen-eliminating device 10, low pressure feed water pump 11, high pressure water pump 12, low-pressure steam generator 8, preheater 7, high pressure steam generator 6
With primary Ioops working medium pump 5.Its workflow is primary Ioops working medium pump 5 by the high temperature primary Ioops working medium pump stored in high temperature storage tank 4
Enter high pressure steam generator 6, high temperature primary Ioops working medium is divided into two parts after cooling through high pressure steam generator 6, is partly into
Low-pressure steam generator 8, another part enters preheater 7, preheats high-pressure feed water, high steam hair is entered after high-pressure feed water preheating
Raw device 6, enters condensation water heater 9 from two parts primary Ioops working medium after low-pressure steam generator 8 and the cooling of preheater 7, plus
Heat setting is born water, and the primary Ioops working medium after cooling is returned in low-temperature storage tank 1, completes the circulation of primary Ioops working medium；Condensate pump 13 will
Condensate is pumped into condensation water heater 9, and the condensate after heating enters oxygen-eliminating device 10, and feedwater is pumped into low pressure by low pressure feed water pump 11
Steam generator 8, produces the superheated steam of low pressure, introduces the low pressure filling mouth of steam turbine 15, and driving Turbo-generator Set generates electricity,
Feedwater is pumped into preheater 7 by high pressure water pump 12, and the feedwater after preheating enters high pressure steam generator 6, produces HTHP
Superheated steam, introduces the main steam mouthful of steam turbine 15, driving Turbo-generator Set generates electricity, after steam does work in steam turbine 15
Exhaust steam enters condenser 14, and water is condensed into condenser 14, completes the circulation of secondary circuit working medium.
Primary Ioops working medium can be conduction oil or fused salt in embodiment.Solar energy heat-collection field 3 can be groove type solar collection
Thermal field, Fresnel solar energy heat-collection field or tower type solar heat collecting field.Condensation water heater and preheater are pipe shell type heat exchange
Device.Low-pressure steam generator 8 and high pressure steam generator 6 can for direct current helix tube type, Horizontal U-shaped pipe natural recirculating type or
Vertical U-tube natural recirculating type.
In above-mentioned specific embodiment, steam power power generation sub-system produces 2 kinds of different pressures and the steam of temperature, but this hair
It is bright to be not limited to 2 kinds, according to the parameter of primary Ioops working medium, 2 kinds, 3 kinds, 4 kinds or more the steamings for planting different pressures and temperature can be produced
Vapour.
Claims (8)
1. a kind of two loop-types solar heat power generation system, including：
High temperature refrigerant and the primary Ioops solar energy heating subsystem stored are obtained using solar energy heating cryogenic fluid；And
Water and steam are heated using the high temperature refrigerant, the steam drive Turbo-generator Set of a variety of different pressures and temperature is produced
The secondary circuit steam power power generation sub-system of generating, the high temperature refrigerant cooling after heating is recycled to the primary Ioops sun for cryogenic fluid
Thermal sub-system can be collected to continue to heat；
The primary Ioops solar energy heating subsystem includes low-temperature storage tank (1), high temperature storage tank (4) and is connected to therebetween too
Positive energy heat collecting field (3)；
Add characterized in that, the secondary circuit steam power power generation sub-system includes steam turbine (15), condenser (14), condensate
Hot device (9), oxygen-eliminating device (10), low pressure feed water pump (11), high pressure water pump (12), low-pressure steam generator (8), preheater (7)
With high pressure steam generator (6), primary Ioops high temperature refrigerant enters high pressure steam generator (6) by high temperature storage tank (4), entered back into simultaneously
The low-pressure steam generator (8) and preheater (7) of connection, enter back into condensation water heater (9), eventually become cryogenic fluid and be back to
Low-temperature storage tank (1)；Water in oxygen-eliminating device (10) is delivered to preheater (7) by high pressure water pump (12), go out the high pressure of preheater (7) to
Water enters high pressure steam generator (6), produces the superheated steam of HTHP, introduces the main steam mouthful driving hair of steam turbine (15)
Electricity；Water in oxygen-eliminating device (10) is delivered to low-pressure steam generator (8) by low pressure feed water pump (11), is produced low-pressure superheated steam, is drawn
The low pressure filling mouth driving for entering steam turbine (15) generates electricity；The exhaust steam for going out steam turbine (15) enters condenser (14), condenses wherein
Cheng Shui delivers to condensation water heater (9), feeding oxygen-eliminating device (10) after being heated in condensation water heater (9).
2. two loop-types solar heat power generation system according to claim 1, it is characterised in that the low-temperature storage tank (1)
Pump (2) is provided between solar energy heat-collection field (3), cryogenic fluid is pumped into solar energy heat-collection field (3) heating.
3. two loop-types solar heat power generation system according to claim 1, it is characterised in that the high steam occurs
Primary Ioops working medium pump (5) is set between device (6) and high temperature storage tank (4)；Between the condenser (14) and condensation water heater (9)
Condensate pump (13) is set.
4. the two loop-type solar heat power generation systems according to claim 1-3 any claims, it is characterised in that institute
The working medium for stating primary Ioops solar energy heating subsystem is conduction oil or fused salt.
5. the two loop-type solar heat power generation systems according to claim 1-3 any claims, it is characterised in that institute
Solar energy heat-collection field (3) is stated for groove type solar heat collecting field, Fresnel solar energy heat-collection field or tower type solar heat collecting field.
6. two loop-types solar heat power generation system according to claim 5, it is characterised in that the condensation water heater
And preheater (7) is shell-and-tube heat exchanger (9).
7. two loop-types solar heat power generation system according to claim 5, it is characterised in that the low-pressure steam occurs
Device (8) is direct current helix tube type, Horizontal U-shaped pipe natural recirculating type or vertical U-tube natural recirculating type；The high steam occurs
Device (6) is direct current helix tube type, Horizontal U-shaped pipe natural recirculating type or vertical U-tube natural recirculating type.
8. two loop-types solar heat power generation system according to claim 5, it is characterised in that the different pressures and temperature
The steam of degree, is two or more.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410145572.9A CN103939306B (en) | 2014-04-11 | 2014-04-11 | A kind of two loop-type solar heat power generation systems |
| PCT/CN2015/073993 WO2015154600A1 (en) | 2014-04-11 | 2015-03-11 | Two-loop solar thermal energy power generation system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410145572.9A CN103939306B (en) | 2014-04-11 | 2014-04-11 | A kind of two loop-type solar heat power generation systems |
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| CN103939306A CN103939306A (en) | 2014-07-23 |
| CN103939306B true CN103939306B (en) | 2017-10-10 |
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| CN103939306B (en) * | 2014-04-11 | 2017-10-10 | 中国华能集团清洁能源技术研究院有限公司 | A kind of two loop-type solar heat power generation systems |
| CN105626402A (en) * | 2014-11-06 | 2016-06-01 | 中国电力工程顾问集团华北电力设计院工程有限公司 | Molten salt heat storage solar thermal power generation system |
| CN104653420A (en) * | 2015-02-09 | 2015-05-27 | 南京瑞柯徕姆环保科技有限公司 | Tower solar thermal power generation method and system using closed Brayton cycle |
| CN104653419A (en) * | 2015-02-09 | 2015-05-27 | 南京瑞柯徕姆环保科技有限公司 | Closed Brayton tower solar thermal power generation method and system |
| CN105162107A (en) * | 2015-09-25 | 2015-12-16 | 蔡泮敏 | Power supply and distribution micro-grid system based on energy storage of industrialized salt making pond |
| CN105697250A (en) * | 2016-03-16 | 2016-06-22 | 绍兴文理学院 | Tower type solar synthetic ammonia system |
| CN113931709B (en) * | 2021-09-26 | 2024-04-09 | 国核电力规划设计研究院有限公司 | Solar-assisted pressurized water reactor nuclear power station secondary loop power generation system and method |
| CN115387868B (en) * | 2022-07-21 | 2024-10-29 | 国家电投集团碳资产管理有限公司 | Waste heat utilization system and method for thermal power generating unit |
| CN115288954B (en) * | 2022-08-17 | 2024-09-03 | 西安热工研究院有限公司 | Energy cascade utilization type light coal complementary steam turbine system and power generation system |
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| CN103939306B (en) * | 2014-04-11 | 2017-10-10 | 中国华能集团清洁能源技术研究院有限公司 | A kind of two loop-type solar heat power generation systems |
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| WO2015154600A1 (en) | 2015-10-15 |
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