CN204186541U - Fuse salt heat-accumulation solar heat generating system - Google Patents

Fuse salt heat-accumulation solar heat generating system Download PDF

Info

Publication number
CN204186541U
CN204186541U CN201420656701.6U CN201420656701U CN204186541U CN 204186541 U CN204186541 U CN 204186541U CN 201420656701 U CN201420656701 U CN 201420656701U CN 204186541 U CN204186541 U CN 204186541U
Authority
CN
China
Prior art keywords
heat
subtense angle
accumulation
thermal
arrest
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
CN201420656701.6U
Other languages
Chinese (zh)
Inventor
田增华
李惠民
魏春岭
张钧
武耀勇
田景奎
吴真
任要中
杜金锋
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.)
North China Power Engineering Co Ltd of China Power Engineering Consulting Group
Original Assignee
North China Electric Power Design Institute of China Power Engineering Consulting Group Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by North China Electric Power Design Institute of China Power Engineering Consulting Group Corp filed Critical North China Electric Power Design Institute of China Power Engineering Consulting Group Corp
Priority to CN201420656701.6U priority Critical patent/CN204186541U/en
Application granted granted Critical
Publication of CN204186541U publication Critical patent/CN204186541U/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • 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
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00Energy generation through renewable energy sources
    • Y02E10/40Solar thermal energy, e.g. solar towers

Abstract

Fuse salt heat-accumulation solar heat generating system of the present utility model, comprise the thermal-arrest subtense angle be connected successively, heat accumulation subtense angle, steam generation subtense angle and power generation sub-system, thermal-arrest subtense angle connects heat accumulation subtense angle, heat accumulation subtense angle connects steam generation subtense angle, steam generation subtense angle connects power generation sub-system, by improving steam generation subtense angle and thermal-arrest subtense angle, the annexation of heat accumulation subtense angle, improve the electric load output stability of power generation sub-system, system exports electric load and does not change by solar radiation change, greatly reduce fluctuation of load, improve the operability that power station entirety controls.

Description

Fuse salt heat-accumulation solar heat generating system
Technical field
The present invention relates to a kind of slot type fuse salt heat-accumulation solar heat generating system, particularly a kind of slot type fuse salt heat-accumulation solar heat generating system stablizing output power load.
Background technique
Trough type solar power generation full name is " generating of groove type paraboloid light collection solar ", its device a kind of reflected by sunlight by groove type paraboloid reflecting mirror and focus on heat collecting pipe, heat-conducting fluid in heating heat collecting pipe, in pipe, water is heated into water vapor by heat-exchange system by heat-conducting fluid, drives the clean energy resource utilized device of Turbo-generator Set generating.
Trough type solar power generation technology is the most ripe in the world at present, is also the solar energy thermal-power-generating technology that commercialized running project is maximum.The advantage of trough type solar power generation technology is: system architecture is compact, and its solar heat radiation collection device floor space is than tower and little 30%-50% that is dish-style system; Component form needed for the manufacture of groove type paraboloid heat-collecting devcie is few, easily realizes standardization, is applicable to batch production; Parabolic trough concentrators processing for focusing sunlight is simple, and manufacture cost is lower; Solar groove type generating does not need too high building, and its tracking system only needs one dimension on-axis tracking can realize the real-time tracking of multiple heat collector, reduces tracking system difficulty and expense.
But also there are problems in existing solar parabolic through power generation system.Existing solar parabolic through power generation system as shown in Figure 1 mainly comprises following four subtense angles.
(1) thermal-arrest subtense angle, is the core of system, is made up of groove type paraboloid reflecting mirror, receiver and tracking means.Hot receiver adopts electron tubes type, and tracking mode adopts one dimension to follow the tracks of, and can adopt north-south arrangement.
(2) steam generation subtense angle, is made up of preheater, steam generator, superheater and reheater.When working medium is conduction oil, adopts double loop, after namely conduction oil is heated in receiver, enter in steam generation subtense angle and produce superheated vapor, superheated vapor enters the generating of turbine generator subtense angle.
(3) power generation sub-system, fundamental composition and conventional power generation usage equipment similar, but need to configure a kind of dedicated control device, for the switching between solar heating system and auxiliary energy system, or for solar heating system and supplementary energy heating system hybrid working.
(4) heat accumulation subtense angle, conduction oil provides heat and stores by day, and under nighttime conditions, the energy that solar heat power generation system can rely on hot energy-storage system to store maintains system and normally runs the regular hour.
Above-mentioned conduction oil flows through thermal-arrest subtense angle, heat accumulation subtense angle and steam generation subtense angle, and conduction oil is heat-absorbing medium in thermal-arrest subtense angle, is heat release and heat-absorbing medium, as exothermic medium in steam generation subtense angle in heat accumulation subtense angle.The thermal-arrest Jing Chang that the heat of conduction oil comes from thermal-arrest subtense angle absorbs solar radiation, part conduction oil enters steam generation subtense angle, a part enters exchange and the storage that heat accumulation subtense angle carries out heat, when there is no the sun, thermal-arrest subtense angle heat supply or heat supply cannot produce fluctuation, and energy storage subtense angle just can provide heat.To a certain extent, temperature and the flow of conduction oil change with the change of solar radiation, cause the change of steam parameter in steam generation subtense angle, and then easily cause the fluctuation of load that in power generation sub-system, steam turbine is exerted oneself.Although be configured with energy storage subtense angle in system, energy storage device can be called when generation fluctuation exerted oneself by steam turbine and eliminate fluctuation of load, but go out hot channel and the thermal-arrest subtense angle of heat accumulation subtense angle share a conveyance conduit, proceed to exothermic phase need certain hour by filling the heat stage, generation time is poor, the load variations of steam turbine cannot be eliminated during this period of time, add great difficulty to Control of Power Plant.
Therefore, how ensureing that the load of exerting oneself in steam generation subtense angle in steam parameter and power generation sub-system keeps stable, do not produce fluctuation, is current problem demanding prompt solution.
Summary of the invention
Namely of the present invention solved technical problem is providing a kind of slot type fuse salt heat-accumulation solar heat generating system stablizing output power load.
The technology used in the present invention means are as described below.
A kind of fuse salt heat-accumulation solar heat generating system, comprise thermal-arrest subtense angle, heat accumulation subtense angle, steam generation subtense angle and power generation sub-system, described thermal-arrest subtense angle connects heat accumulation subtense angle, and heat accumulation subtense angle connects steam generation subtense angle, and steam generation subtense angle connects power generation sub-system.
Described heat accumulation subtense angle, comprise the salt storage tank, conduction oil-fused salt heat exchanging device and the low-temperature molten salt storage tank that are connected successively, described steam generation subtense angle comprises the superheater, steam generator and the preheater that are connected successively, also comprise reheater, described salt storage tank connects filter and reheater, described low-temperature molten salt storage tank connects preheater and reheater, and conduction oil-fused salt heat exchanging device connects thermal-arrest subtense angle.
Described superheater is connected steam turbine in power generation sub-system and condensing plant with reheater.
Described thermal-arrest subtense angle comprises thermal-arrest Jing Chang.Carry on heat conducting oil pipe at thermal-arrest Jing Chang and be provided with oil expansion tank and Heat-transfer Oil Pump.
The beneficial effect that the present invention produces: slot type thermal-arrest, fused salt and steam 3 loops form slot type fused salt heat-accumulation solar heat generating system of the present invention.Change the combination of heat accumulation subtense angle and thermal-arrest subtense angle thermal-arrest electric field, thermal-arrest subtense angle is connected directly between on energy storage subtense angle, heat accumulation subtense angle is made to play the effect of a heat " buffer memory ", namely a large amount of heat energy is stored in fused salt tank, can ensure stable, transfer heat is to steam generation subtense angle endlessly, when there is no solar radiation or solar radiation produces fluctuation, the heat that thermal-arrest subtense angle provides can produce fluctuation, but the temperature of fused salt huge in fused salt tank can not produce and significantly fluctuate, output and the steam parameter of high-temperature molten salt can not be affected, namely the conduction oil Parameters variation caused because of solar radiation fluctuation can not have an impact to steam generation subtense angle, be only energy storage subtense angle heat storage can in fuse salt liquid level change along with the change of conduction oil parameter.Solve heat accumulation subtense angle to proceed to the time difference of exothermic phase by filling heat and cause steam generation subtense angle and power generation sub-system to produce the problem of fluctuation simultaneously.This greatly improves the stability that dynamic power island electric load exports, and system exports electric load and do not change by solar radiation change, greatly reduces fluctuation of load, improves the operability that power station entirety controls.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of the solar parabolic through power generation system of existing band fused salt heat reservoir.
Fig. 2 is the schematic diagram of fuse salt heat-accumulation solar heat generating system of the present invention.
Embodiment
The present invention's protection a kind of slot type fuse salt heat-accumulation solar heat generating system as shown in Figure 2; comprise thermal-arrest subtense angle 1, heat accumulation subtense angle 2, steam generation subtense angle 3 and power generation sub-system 4; of the present inventionly to focus on; described thermal-arrest subtense angle 1 connects heat accumulation subtense angle 2; heat accumulation subtense angle 2 connects steam generation subtense angle 3, and steam generation subtense angle 3 connects power generation sub-system 4.
Comprise in described thermal-arrest subtense angle 1 and collect solar energy thermal-radiating thermal-arrest mirror field 11.Heat accumulation subtense angle 2 comprises the salt storage tank 21, conduction oil-fused salt heat exchanging device 22 and the low-temperature molten salt storage tank 23 that are connected successively.Described conduction oil-fused salt heat exchanging device 22 connects conduction oil output terminal and the input end of thermal-arrest subtense angle 1, i.e. conduction oil-fused salt heat exchanging device 22 and thermal-arrest mirror field 11 are connected to become the suction-heat release loop of a conduction oil.Oil expansion tank 12 and Heat-transfer Oil Pump 13 can be provided with, for the flowing of conduction oil provides power carrying on the pipeline of conduction oil to thermal-arrest mirror field 11.
Described steam generation subtense angle 3, comprises the superheater 31, steam generator 32 and the preheater 33 that are connected successively, also comprises reheater 34.Described salt storage tank 21 connects filter 31 and reheater 34 respectively by pipeline, and low-temperature molten salt storage tank 23 connects preheater 33 and reheater 34 respectively by pipeline, forms the suction-heat release loop of 2 fused salts sharing energy storage subtense angle.
Also comprise power generation sub-system 4, comprise steam turbine 41, condensing plant 43 and condensate pump 44, steam turbine 41 connects generator 42 and form Turbo-generator Set.Above-mentioned superheater 31 is all connected steam turbine 41 with reheater 34, after steam turbine 41 connects condensing plant 43 and condensate pump 44, be connected with preheater 33, steam turbine 41 is also direct to be connected with reheater 34, forms the suction-heat release loop of 2 steam electric powers sharing steam turbine 41.
According to the above-mentioned structure to slot type fuse salt heat-accumulation solar heat generating system and annexation, below its working method is specifically described.
Suction-heat release the loop of conduction oil.
Conduction oil is heated to 390 DEG C by 290 DEG C in thermal-arrest mirror field 11, and 390 DEG C of conduction oils are by conduction oil-fused salt heat exchanging device 22 heat release of heat accumulation subtense angle 2 subsequently, and the conduction oil after heat release becomes 290 DEG C, gets back to thermal-arrest Jing Chang and again absorbs heat.
Suction-heat release the loop of fused salt.
286 DEG C of low-temperature molten salts in low-temperature molten salt storage tank 23 deliver to conduction oil-fused salt heat exchanging device 22 by low-temperature molten salt pump 231, by carrying out heat exchange with 390 DEG C of conduction oils, enter salt storage tank 21 store heat after 286 DEG C of low-temperature molten salts are heated to 386 DEG C.Simultaneously, the 386 DEG C of high-temperature molten salts flowed out in salt storage tank 21, sent into superheater 31 and reheater 34 heated feed water of steam generation subtense angle 3 by high-temperature melting salt pump 211, the 286 DEG C of low-temperature molten salts flowed out after heat release carry out the exchange heat of a new round by flowing to conduction oil-fused salt heat exchanging device 22 after low-temperature molten salt storage tank 23.In the exothermic process of above-mentioned fused salt, 386 DEG C of high-temperature molten salts pass through vaporizer 32 and preheater 33 heat release more successively after passing through superheater 31, and then flow back to low-temperature molten salt storage tank 23, ensure that making full use of of heat.
Suction-heat release the loop of steam electric power.
At superheater 31 and reheater 34 place after absorbing high-temperature molten salt liberated heat, the high-temperature vapor providing 371 DEG C promotes Turbo-generator Set generating in power generation sub-system 4, the exhaust steam produced after Turbo-generator Set generating becomes water of condensation after condensing plant 43 condensation, sent in steam generation subtense angle 3 by condensate pump 44 and carry out new round heat absorption, or the exhaust steam of 245 DEG C produced after Turbo-generator Set generating is sent into reheater 34 and is carried out new round heat absorption.
Above slot type thermal-arrest, fused salt and steam 3 loops form slot type fused salt heat-accumulation solar heat generating system of the present invention.Thermal-arrest subtense angle 1 is connected on energy storage subtense angle 2, heat accumulation subtense angle 2 plays the effect of a heat " buffer memory ", namely a large amount of heat energy is stored in fused salt tank, can ensure stable, transfer heat is to steam generation subtense angle endlessly, when there is no solar radiation or solar radiation produces fluctuation, the heat that thermal-arrest subtense angle provides can produce fluctuation, but the temperature of fused salt huge in fused salt tank can not produce and significantly fluctuate, output and the steam parameter of high-temperature molten salt can not be affected, namely the conduction oil Parameters variation caused because of solar radiation fluctuation can not have an impact to steam generation subtense angle, be only energy storage subtense angle heat storage can in fuse salt liquid level change along with the change of conduction oil parameter, solve heat accumulation subtense angle to proceed to the time difference of exothermic phase by filling heat and cause steam generation subtense angle and power generation sub-system to produce the problem of fluctuation simultaneously.This greatly improves the stability that dynamic power island electric load exports, and system exports electric load and do not change by solar radiation change, greatly reduces fluctuation of load, improves the operability that power station entirety controls.

Claims (5)

1. a fuse salt heat-accumulation solar heat generating system, comprise thermal-arrest subtense angle, heat accumulation subtense angle, steam generation subtense angle and power generation sub-system, it is characterized in that, described thermal-arrest subtense angle connects heat accumulation subtense angle, heat accumulation subtense angle connects steam generation subtense angle, and steam generation subtense angle connects power generation sub-system.
2. fuse salt heat-accumulation solar heat generating system as claimed in claim 1, it is characterized in that, described heat accumulation subtense angle, comprise the salt storage tank, conduction oil-fused salt heat exchanging device and the low-temperature molten salt storage tank that are connected successively, described steam generation subtense angle comprises the superheater, steam generator and the preheater that are connected successively, also comprise reheater, described salt storage tank connects superheater and reheater, described low-temperature molten salt storage tank connects preheater and reheater, and conduction oil-fused salt heat exchanging device connects thermal-arrest subtense angle.
3. fuse salt heat-accumulation solar heat generating system as claimed in claim 2, is characterized in that, described superheater is connected steam turbine in power generation sub-system and condensing plant with reheater.
4. the fuse salt heat-accumulation solar heat generating system as described in as wherein arbitrary in claims 1 to 3, it is characterized in that, described thermal-arrest subtense angle comprises thermal-arrest Jing Chang.
5. fuse salt heat-accumulation solar heat generating system as claimed in claim 4, is characterized in that, carries on heat conducting oil pipe be provided with oil expansion tank and Heat-transfer Oil Pump at thermal-arrest Jing Chang.
CN201420656701.6U 2014-11-06 2014-11-06 Fuse salt heat-accumulation solar heat generating system Active CN204186541U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201420656701.6U CN204186541U (en) 2014-11-06 2014-11-06 Fuse salt heat-accumulation solar heat generating system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201420656701.6U CN204186541U (en) 2014-11-06 2014-11-06 Fuse salt heat-accumulation solar heat generating system

Publications (1)

Publication Number Publication Date
CN204186541U true CN204186541U (en) 2015-03-04

Family

ID=52618550

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201420656701.6U Active CN204186541U (en) 2014-11-06 2014-11-06 Fuse salt heat-accumulation solar heat generating system

Country Status (1)

Country Link
CN (1) CN204186541U (en)

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105387636A (en) * 2015-12-21 2016-03-09 九格能源科技(天津)有限公司 Linear Fresnel transmission type fused salt stored energy utilization system
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
CN105650900A (en) * 2015-12-30 2016-06-08 中海阳能源集团股份有限公司 Groove type solar high-temperature heat collecting device and method for thickened oil steam injection production through groove type solar high-temperature heat collecting device
CN106321382A (en) * 2016-09-07 2017-01-11 华中科技大学 Solar photothermal combined power generation system
CN106438237A (en) * 2015-08-10 2017-02-22 中国电力工程顾问集团华北电力设计院有限公司 Molten salt and conduction oil double heat storage solar thermal power generating system
CN106918030A (en) * 2017-01-11 2017-07-04 华北电力大学 A kind of coal-saving high temperature tower-type solar thermal complementation coal fired power plant integrated system
CN107466353A (en) * 2015-04-21 2017-12-12 通用电器技术有限公司 Fused salt leads directly to steam generator
CN108291532A (en) * 2015-10-28 2018-07-17 千代田化工建设株式会社 Device of solar generating and its control method
CN108533467A (en) * 2018-02-26 2018-09-14 华北电力大学 A kind of slot type of power regulation, tower photo-thermal and photovoltaic can heat accumulation electricity generation systems
CN109654756A (en) * 2018-12-28 2019-04-19 中国葛洲坝集团装备工业有限公司 A kind of fused salt heat reservoir and its heat change method for solar energy thermo-power station

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
CN107466353A (en) * 2015-04-21 2017-12-12 通用电器技术有限公司 Fused salt leads directly to steam generator
CN106438237A (en) * 2015-08-10 2017-02-22 中国电力工程顾问集团华北电力设计院有限公司 Molten salt and conduction oil double heat storage solar thermal power generating system
CN108291532A (en) * 2015-10-28 2018-07-17 千代田化工建设株式会社 Device of solar generating and its control method
CN105387636A (en) * 2015-12-21 2016-03-09 九格能源科技(天津)有限公司 Linear Fresnel transmission type fused salt stored energy utilization system
CN105650900A (en) * 2015-12-30 2016-06-08 中海阳能源集团股份有限公司 Groove type solar high-temperature heat collecting device and method for thickened oil steam injection production through groove type solar high-temperature heat collecting device
CN105650900B (en) * 2015-12-30 2018-08-21 中海阳能源集团股份有限公司 A kind of groove type solar high-temperature heat-gathering device and its method for heavy oil steam injection recovery
CN106321382A (en) * 2016-09-07 2017-01-11 华中科技大学 Solar photothermal combined power generation system
CN106918030A (en) * 2017-01-11 2017-07-04 华北电力大学 A kind of coal-saving high temperature tower-type solar thermal complementation coal fired power plant integrated system
CN108533467A (en) * 2018-02-26 2018-09-14 华北电力大学 A kind of slot type of power regulation, tower photo-thermal and photovoltaic can heat accumulation electricity generation systems
CN109654756A (en) * 2018-12-28 2019-04-19 中国葛洲坝集团装备工业有限公司 A kind of fused salt heat reservoir and its heat change method for solar energy thermo-power station

Similar Documents

Publication Publication Date Title
CN204186541U (en) Fuse salt heat-accumulation solar heat generating system
CN105626402A (en) Molten salt heat storage solar thermal power generation system
JP6340473B2 (en) Solar and biomass energy integrated power generation optimization combined system
US4146057A (en) Thermal buffer system
CN102182997B (en) Binary working medium combined type solar heat absorber and supporting device
CN203394692U (en) Tower-type solar power generation system adopting two different molten salts
CN102146899B (en) Multi-tower binary-working-medium solar high-temperature heat power generation system
CN103277272A (en) Wind energy and groove-type solar all-in-one power generating system
CN103939306B (en) A kind of two loop-type solar heat power generation systems
CN202673591U (en) Trough and tower solar hybrid power generation system
CN106438237A (en) Molten salt and conduction oil double heat storage solar thermal power generating system
CN204984748U (en) Dual heat -retaining solar thermal power generation system of fuse salt and conduction oil
CN204648712U (en) A kind of solar parabolic through power generation system
CN206111443U (en) Trough type solar thermal power generation system system
CN107542631B (en) A kind of 3 tank heat storage type points-line focus mixing heat collecting field solar heat power generation system
CN105222368A (en) Based on the solar energy cascade heating high-temperature heat collection system of Molten Salt Heat Transfer accumulation of heat
CN106225541A (en) The tower solar-thermal generating system of the many heat collectors of single column formula
CN202673592U (en) Slot type solar-gas combined cycle generation system
CN102661259B (en) Integrated solar thermal power generation system
CN103742373A (en) Tower solar thermal power plant utilizing supercritical water heat absorber and molten salt heat storage
CN204460763U (en) Adopt the tower type solar solar-thermal generating system of fused salt working medium
CN105756873A (en) Solar steam direct power generation system with heat storage function
CN204200498U (en) Superhigh temperature groove type solar solar-thermal generating system
CN203362422U (en) Trough type solar and organic Rankine cycle (ORC) power generation system
CN202673593U (en) Trough and Fresnel solar heat hybrid power generation system

Legal Events

Date Code Title Description
C14 Grant of patent or utility model
GR01 Patent grant
C56 Change in the name or address of the patentee

Owner name: CHINA POWER ENGINEERING CONSULTING GROUP NORTH CHI

Free format text: FORMER NAME: NORTH CHINA ELECTRIC POWER DESIGN INSTITUTE OF CHINA POWER ENGINEERING CONSULTING GROUP CORPORATION

CP01 Change in the name or title of a patent holder

Address after: 100120 Beijing city Xicheng District Street No. 24

Patentee after: NORTH CHINA POWER ENGINEERING CO., LTD. OF CHINA POWER ENGINEERING CONSULTING GROUP

Address before: 100120 Beijing city Xicheng District Street No. 24

Patentee before: North China Electric Power Design Institute of China Power Engineering Consulting Group Corporation