CN202645893U - Fused salt hot working system of secondary reflective tower type solar photo-thermal power station - Google Patents
Fused salt hot working system of secondary reflective tower type solar photo-thermal power station Download PDFInfo
- Publication number
- CN202645893U CN202645893U CN 201220354697 CN201220354697U CN202645893U CN 202645893 U CN202645893 U CN 202645893U CN 201220354697 CN201220354697 CN 201220354697 CN 201220354697 U CN201220354697 U CN 201220354697U CN 202645893 U CN202645893 U CN 202645893U
- Authority
- CN
- China
- Prior art keywords
- heat
- steam generator
- pipeline
- heat absorber
- fused salt
- 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.)
- Expired - Lifetime
Links
Images
Classifications
-
- 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
Landscapes
- Engine Equipment That Uses Special Cycles (AREA)
Abstract
A fused salt hot working system of a secondary reflective tower type solar photo-thermal power station solves a problem that system cost and technical risk are obstinately high since a convention fused salt hot working system of a solar photo-thermal power station adopts a high tower to collect heat and uses a heat absorber at the top of the high tower, the high position of the heat absorber at the top of the high tower causes difficulty in mounting and maintenance and high system cost and extra loss, and heat absorption and storage use steam, oil and the other work substances. Fluid of the work substances is injected into a cold fused salt injection pipeline; the cold fused salt injection pipeline is communicated with a cold cylinder; the cold cylinder and the heat absorber are communicated via a heat absorber cold fused pipeline; two ends of the heat absorber fused salt pipeline are respectively communicated with the heat absorber and a hot cylinder; two ends of a steam generator fused salt pipeline are respectively communicated with the hot cylinder and a steam generator; the steam generator and the cold cylinder are communicated via the steam generator cold fused salt pipeline; and the steam generator and a generation system are communicated via the steam generator steam pipeline. The fused salt hot working system, provided by the utility model, is applied to secondary reflective tower type photo-thermal power stations.
Description
Technical field
The utility model relates to a kind of fused salt heat power engineering system, is specifically related to a kind of secondary reflection tower type solar photo-thermal power station fused salt heat power engineering system.
Background technique
Existing tower type solar photo-thermal power station is the primary event formula, and heat absorber is installed in the optically focused column overhead, and heat absorption is adopted different working medium with accumulation of heat working medium, heat absorption working medium be generally water, oil, etc., that accumulation of heat working medium is generally is oily, salt or porous ceramics.In the fused salt heat power engineering system of existing tower type solar photo-thermal power station, sunlight focuses on the cat head heat absorber through heliostat field, and transform light energy becomes heat energy, the heat absorption working medium that is transported to heat absorber through pump is taken away, direct or indirect generating steam, driving steam turbine rotates, the generating of steam turbine drive motor.In order to realize the steady and continuous generating, usually need to set up heat-stored device, when sunshine is sufficient, it is for subsequent use that the heat of will having more than needed carries out accumulation of heat by heat-stored device, when sunshine deficiency or night, opens heat-stored device, directly or indirectly produce steam, driving steam turbine rotates, the generating of steam turbine drive motor.For the thermal-arrest high tower of primary event, heat absorber is arranged in cat head, is subjected to the impact of cat head wind speed, and the thermal loss of heat absorber outside is larger; The heat absorber system of large volume is installed at high tower brings many difficult problems to engineering, and hoisting process is higher to environmental requirement, risk is very big; In the heat power engineering system running, need the high-lift high temperature refrigerant pump of configuration, heat absorption working medium is pumped into the heat absorber of cat head, the consumption of the investment of increase system and station service; Heat absorption working medium pipeline from ground to the high tower heat absorber is longer, and system complex when cost promotes, has also increased the difficulty of risk of leakage and maintenance overhaul.For water/steam heat power engineering system, heat absorption working medium is water, water is transported to the heat absorber that is positioned at cat head by pump, after in heat absorber, being heated, undergo phase transition, become high temperature and high pressure steam, a part of steam directly enters steam turbine, another part steam enters one-level thermal accumulator (drum), carry out the steam accumulation of heat, some steam enters the heat accumulation heat exchanger, heat transferred is come the low-temperature heat accumulating working medium of self cooling tank, it is for subsequent use to enter hot tank accumulation of heat after the heat absorption of accumulation of heat working medium heats up, when sunshine deficiency or night, open one-level thermal accumulator and hot tank, produce steam by steam generator, driving steam turbine rotates, the generating of steam turbine drive motor.Be subjected to the affected by high of steam under the condition of high temperature, whole system is in the high-voltage operation state, and system cost is high, and system's operation risk is large, and safety and reliability is poor.
For the heat power engineering system that adopts conduction oil, conduction oil is only applicable to the occasion below 400 ℃, has limited the focus temperature of tower system receiver.Condition of high temperature oil is bled into atmosphere, becomes poisonous flammable explosive gas, easy initiation fire, and oil is expensive.For the air heat power engineering system, heat absorption working medium is air, air is heated to high temperature in the cat head heat absorber, a part of High Temperature High Pressure air directly enters gas turbine power generation, and another part high temperature air enters thermal accumulator (porous ceramics), carry out the porous ceramics accumulation of heat, when sunshine deficiency or night, open thermal accumulator, produce steam by steam generator, driving steam turbine rotates, the generating of steam turbine drive motor.Be subjected to low impact of air calorific value, the design difficulty of heat absorber is large, and it is overheated very easily to produce, and the thermal efficiency is low.
To sum up, the problem that existing solar energy cogeneration power plant fused salt heat power engineering system in use exists is that existing solar energy cogeneration power plant fused salt heat power engineering system adopts the high tower thermal-arrest and uses the cat head heat absorber, because cat head heat absorber position height makes its installation and maintenance difficulty, system cost and added losses high, heat absorption, heat accumulation use steam, wet goods working medium, make the high problem of system cost and technical risk.
The model utility content
The purpose of this utility model provides a kind of secondary reflection tower type solar photo-thermal power station fused salt heat power engineering system, adopt the high tower thermal-arrest and use the cat head heat absorber to solve existing solar energy cogeneration power plant fused salt heat power engineering system, because cat head heat absorber position height makes its installation and maintenance difficulty, system cost and added losses high, heat absorption, heat accumulation use steam, wet goods working medium, make the high problem of system cost and technical risk.
The utility model is to address the above problem the technological scheme of taking to be: described secondary reflection tower type solar photo-thermal power station fused salt heat power engineering system comprises heat absorber, cold tank, hot tank, steam generator, sloppy heat salt fills pipeline, heat absorber sloppy heat salt pipeline, heat absorber hot melt salt pipeline, steam generator hot melt salt pipeline, steam generator sloppy heat salt pipeline, delivery (pipe) line, the steam generator steam pipework, heliostat field, the working medium fluid, power generation system and secondary reflection mirror, described heat absorber, cold tank, hot tank, steam generator, heliostat field and power generation system are all landed setting, described secondary reflection mirror is installed on the pylon, described working medium fluid is the fused salt fluid, described working medium fluid is injected into sloppy heat salt and fills in the pipeline, described sloppy heat salt fills pipeline and is communicated with cold tank, pass through heat absorber sloppy heat salt pipeline connection between cold tank and the heat absorber, one end of heat absorber hot melt salt pipeline is communicated with heat absorber, the other end of heat absorber hot melt salt pipeline is communicated with hot tank, one end of steam generator hot melt salt pipeline is communicated with hot tank, the other end of steam generator hot melt salt pipeline is communicated with steam generator, pass through steam generator sloppy heat salt pipeline connection between steam generator and the cold tank, steam generator is communicated with by the steam generator steam pipework with power generation system, also is communicated with delivery (pipe) line on the steam generator.
The beneficial effects of the utility model are: in the utility model " secondary reflection " refer to sunlight through the heliostat field reflect focalization to the secondary reflection mirror, again through secondary reflection mirror reflect focalization to heat absorber, the utility model is given full play to the characteristics of secondary reflection system, heat absorber, cold tank, hot tank, steam generator, heliostat field and power generation system all landed installation is set on the ground, be convenient to installation and maintenance, install firm, reduce pipeline electrical tracing power consumption and transfer pump lift, reduce added losses; Working medium fluid of the present utility model is the fused salt fluid, and the working medium fluid adopts cheap fused salt to make heat absorption and accumulation of heat share same working medium as heat absorption and accumulation of heat working medium, need not to arrange two-stage heat-storage and heat accumulation heat exchanger, and the utility model is simplified greatly; The utility model is in no pressure running state and whole service process without phase transformation, effectively reduces technical risk; The thermal capacitance of the working medium fluid in the utility model is large, and it is compacter that the structure of the heat absorber in the utility model is compared with prior art designed, and also reduced manufacture cost when effectively reducing heat waste; The heat storage capacity of the working medium fluid in the utility model is strong, makes the utility model realize long-term continuously power supply.
Description of drawings
Fig. 1 is flow process frame diagram of the present utility model.
Embodiment
Embodiment one: in conjunction with Fig. 1 explanation, secondary reflection tower type solar photo-thermal power station fused salt heat power engineering system comprises heat absorber 1, cold tank 2, hot tank 3, steam generator 4, sloppy heat salt fills pipeline 5, heat absorber sloppy heat salt pipeline 6, heat absorber hot melt salt pipeline 7, steam generator hot melt salt pipeline 8, steam generator sloppy heat salt pipeline 9, delivery (pipe) line 10, steam generator steam pipework 11, heliostat field 12, working medium fluid 13, power generation system 14 and secondary reflection mirror 15, described heat absorber 1, cold tank 2, hot tank 3, steam generator 4, heliostat field 12 and power generation system 14 are all landed setting, described secondary reflection mirror 15 is installed on the pylon, described working medium fluid 13 is the fused salt fluid, described working medium fluid 13 is injected into sloppy heat salt and fills in the pipeline 5, described sloppy heat salt fills pipeline 5 and is communicated with cold tank 2, be communicated with by heat absorber sloppy heat salt pipeline 6 between cold tank 2 and the heat absorber 1, one end of heat absorber hot melt salt pipeline 7 is communicated with heat absorber 1, the other end of heat absorber hot melt salt pipeline 7 is communicated with hot tank 3, one end of steam generator hot melt salt pipeline 8 is communicated with hot tank 3, the other end of steam generator hot melt salt pipeline 8 is communicated with steam generator 4, be communicated with by steam generator sloppy heat salt pipeline 9 between steam generator 4 and the cold tank 2, steam generator 4 is communicated with by steam generator steam pipework 11 with power generation system 14, also is communicated with delivery (pipe) line 10 on the steam generator 4.Power generation system 14 in the present embodiment comprises steam turbine and motor, the generating of steam turbine drive motor, its process is that steam that steam generator 4 produces enters driving steam turbine running work in the steam turbine of power generation system 14, the generating of steam turbine drive motor by steam conveying pipeline 11; Pylon in the present embodiment is identical with pylon structure of the prior art, and only highly different, the pylon height in the present embodiment is 80～120 meters.
Embodiment two: in conjunction with Fig. 1 explanation, the fluid of working medium described in the present embodiment 13 is the fluid-mixing of sodium nitrate and potassium nitrate.This fluid is the working medium fluid 13 of molten state, draws with the fluid-mixing of sodium nitrate and the potassium nitrate model utility better effects if as working medium fluid 13 through experiment.This fused salt density is large, regularly can reduce the equipment volume of regenerative system in thermal capacity one; Fused salt cheap can reduce the whole investment in power station; Fused salt is nontoxic, is liquid under the high-temperature pressure, and is non-volatile, non-inflammable explosive article, and system reliability is good.Other composition and annexation are identical with embodiment one.
Embodiment three: in conjunction with Fig. 1 explanation, the sodium nitrate in the fluid of working medium described in the present embodiment 13 and the mass ratio of potassium nitrate are 3: 2.This mass ratio is the optimal proportion that the technical program is implemented, the fused salt of this ratio begins fusing in the time of 220 ℃, stable 600 ℃ of following thermal characteristicss, and the thermal efficiency is high, satisfy the operating temperature in 450～550 ℃ in tower photo-thermal power station, can guarantee that generating efficiency brings up to 40%.Other composition and annexation are identical with embodiment one or two.
Working principle:
Sunlight through heliostat field 12 reflect focalizations to secondary reflection mirror 15, again through secondary reflection mirror 15 reflect focalizations to heat absorber 1, the working medium fluid 13 of the low temperature in the cold tank 2 is transported to ground heat absorber 1 by heat absorber sloppy heat salt pipeline 6, the working medium fluid 13 of low temperature is heated to form high temperature in heat absorber 1 working medium fluid 13 enters hot tank 3 by heat absorber hot melt salt pipeline 7 afterwards, then enter steam generator 4 by steam generator hot melt salt pipeline 8, after in steam generator 4, carrying out the salt solution heat exchange, the working medium fluid 13 of high temperature becomes the working medium fluid 13 of low temperature to be got back in the cold tank 2, and the steam that produces in the steam generator 4 is transported to power generation system 14 by steam conveying pipeline 11.
Claims (3)
1. secondary reflection tower type solar photo-thermal power station fused salt heat power engineering system, described secondary reflection tower type solar photo-thermal power station fused salt heat power engineering system comprises heat absorber (1), cold tank (2), hot tank (3), steam generator (4), sloppy heat salt fills pipeline (5), heat absorber sloppy heat salt pipeline (6), heat absorber hot melt salt pipeline (7), steam generator hot melt salt pipeline (8), steam generator sloppy heat salt pipeline (9), delivery (pipe) line (10), steam generator steam pipework (11), heliostat field (12), working medium fluid (13), power generation system (14) and secondary reflection mirror (15), it is characterized in that described heat absorber (1), cold tank (2), hot tank (3), steam generator (4), heliostat field (12) and power generation system (14) are all landed setting, described secondary reflection mirror (15) is installed on the pylon, described working medium fluid (13) is the fused salt fluid, described working medium fluid (13) is injected into sloppy heat salt and fills in the pipeline (5), described sloppy heat salt fills pipeline (5) and is communicated with cold tank (2), be communicated with by heat absorber sloppy heat salt pipeline (6) between cold tank (2) and the heat absorber (1), one end of heat absorber hot melt salt pipeline (7) is communicated with heat absorber (1), the other end of heat absorber hot melt salt pipeline (7) is communicated with hot tank (3), one end of steam generator hot melt salt pipeline (8) is communicated with hot tank (3), the other end of steam generator hot melt salt pipeline (8) is communicated with steam generator (4), be communicated with by steam generator sloppy heat salt pipeline (9) between steam generator (4) and the cold tank (2), steam generator (4) is communicated with by steam generator steam pipework (11) with power generation system (14), also is communicated with delivery (pipe) line (10) on the steam generator (4).
2. described secondary reflection tower type solar photo-thermal power station fused salt heat power engineering system according to claim 1 is characterized in that described working medium fluid (13) is the fluid-mixing of sodium nitrate and potassium nitrate.
3. described secondary reflection tower type solar photo-thermal power station fused salt heat power engineering system according to claim 1 and 2 is characterized in that sodium nitrate in the described working medium fluid (13) and the mass ratio of potassium nitrate are 3: 2.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220354697 CN202645893U (en) | 2012-07-20 | 2012-07-20 | Fused salt hot working system of secondary reflective tower type solar photo-thermal power station |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220354697 CN202645893U (en) | 2012-07-20 | 2012-07-20 | Fused salt hot working system of secondary reflective tower type solar photo-thermal power station |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202645893U true CN202645893U (en) | 2013-01-02 |
Family
ID=47415010
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220354697 Expired - Lifetime CN202645893U (en) | 2012-07-20 | 2012-07-20 | Fused salt hot working system of secondary reflective tower type solar photo-thermal power station |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202645893U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102748252A (en) * | 2012-07-20 | 2012-10-24 | 哈尔滨汽轮机厂辅机工程有限公司 | Molten salt thermal system for secondary reflection tower-type solar photothermal power station |
| CN103775144A (en) * | 2013-08-15 | 2014-05-07 | 王天祥 | High-condensation and solar photo-thermal direct evaporation type fluid positive pressure circulation power generation system |
-
2012
- 2012-07-20 CN CN 201220354697 patent/CN202645893U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102748252A (en) * | 2012-07-20 | 2012-10-24 | 哈尔滨汽轮机厂辅机工程有限公司 | Molten salt thermal system for secondary reflection tower-type solar photothermal power station |
| CN103775144A (en) * | 2013-08-15 | 2014-05-07 | 王天祥 | High-condensation and solar photo-thermal direct evaporation type fluid positive pressure circulation power generation system |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN204187873U (en) | A kind of energy storage type solar superheated steam boiler adopting heat-conducting oil | |
| CN208380763U (en) | A kind of Bretton solar-thermal generating system of improvement | |
| CN204610203U (en) | A kind of adiabatic compression air energy-storage and the integrated system of solar energy | |
| CN204420949U (en) | A kind of energy storage type solar steam boiler adopting Molten Salt Heat Transfer heat accumulation | |
| CN205047262U (en) | Super supercritical carbon dioxide power generation system based on secondary reflection spotlight heat absorption technique | |
| CN105201579A (en) | Supercritical carbon dioxide power generation system based on secondary reflection condensation heat-absorption technique | |
| CN203704396U (en) | Solar thermal power generation, heat transfer and heat storage system based on double molten salt | |
| CN106322822B (en) | Dissolve cold-hot combined supply system and method that light is abandoned in abandonment | |
| CN109883230A (en) | Fused salt thermal storage and energy accumulation electricity generation system and energy-accumulating power station comprising it | |
| CN102748252A (en) | Molten salt thermal system for secondary reflection tower-type solar photothermal power station | |
| CN104864613A (en) | Heat storage device | |
| CN107989757A (en) | Solar air turbine power generation system and its control method with heat storage function | |
| CN107328120A (en) | A kind of energy storage heat-exchange system of high and low temperature fused salt | |
| CN102889698A (en) | Solar energy storage system | |
| CN102865686A (en) | Solar heat-collecting tube expansion mechanism | |
| CN202645893U (en) | Fused salt hot working system of secondary reflective tower type solar photo-thermal power station | |
| CN205478136U (en) | Reduce structure of tower solar photothermal power of fused salt station heat waste | |
| CN207365478U (en) | A kind of energy storage heat-exchange system of high and low temperature fused salt | |
| CN106121942A (en) | A kind of supercritical solar power station using liquid lead bismuth heat transfer and heat accumulation | |
| CN202885310U (en) | Solar thermal collecting tube expansion device | |
| CN102980169A (en) | Thermodynamic system combined with solar energy water heat absorption device and low limit load boiler | |
| CN202747471U (en) | Solar heat storing and heating system | |
| CN103511207B (en) | A kind of tower type solar power generation system of regenerative heat exchange integration | |
| CN207393399U (en) | Dish-style solar-thermal generating system | |
| CN202955886U (en) | Solar energy storage system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130102 |
|
| CX01 | Expiry of patent term |