CN203837309U - Fused salt self-evacuating system for photo-thermal power generation - Google Patents
Fused salt self-evacuating system for photo-thermal power generation Download PDFInfo
- Publication number
- CN203837309U CN203837309U CN201420237342.0U CN201420237342U CN203837309U CN 203837309 U CN203837309 U CN 203837309U CN 201420237342 U CN201420237342 U CN 201420237342U CN 203837309 U CN203837309 U CN 203837309U
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- China
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- fused salt
- storage tank
- power generation
- thermal power
- photo
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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
Abstract
The utility model provides a fused salt self-evacuating system for photo-thermal power generation and relates to the field of solar thermal power generation systems. The fused salt self-evacuating system comprises a fused salt storage tank, a fused salt heating device and a fused sale discharging pool. The fused salt storage tank and the fused salt heating device are connected in a sealed mode through two communicating pipelines. The fused salt heating device comprises a fused salt heating furnace and a fused salt circulating storage tank. The fused salt heating furnace and the fused salt circulating storage tank are connected through two circulating pipelines so that a fused salt circulating loop can be formed. The fused salt storage tank is connected with the fused sale discharging pool through an evacuating pipeline. A high-temperature fused salt blow-off valve is installed on the evacuating pipeline. According to the fused salt self-evacuating system for photo-thermal power generation, when the system breaks down and all devices can not be operated, fused salt in the system can be guided out in time, all the fused salt in the system can be discharged depending on the dead weight of the fused salt before the fused salt is condensed, and the phenomenon that the devices are scraped due to the fact that the fused salt is condensed in the devices and the pipelines can be avoided.
Description
Technical field
The utility model relates to solar heat power generation system field, is specifically related to a kind of fused salt for photo-thermal power generation from emptying system.
Background technology
In solar energy thermal-power-generating, fused salt, as a kind of heat-storage medium (approaching water) of high heat capacity, has been widely used in solar energy thermal-power-generating technology.The serviceability temperature interval of fused salt is 250 ℃～565 ℃, thermograde reaches more than 300 ℃, and fused salt remains liquid condition in this is interval, so fused salt pipe-line system pressure is very little, in operation interval, fused salt can store the heat that is approximately three times in water under low-pressure state, and this just makes it in commercial Application, have very large advantage.Research shows, uses the generating of high temperature nitric acid fused salt can make solar power station operating temperature bring up to 450-500 ℃, so just makes steam turbine generating efficiency bring up to 40%.In addition, use fuse salt also can make heat accumulation efficiency improve 2.5 times, thereby reduce the volume of heat storage container.But fused salt also has larger shortcoming, easy coagulability, when systemic breakdown all devices cannot turn round, if can not timely the fused salt in system be derived, after temperature is lost, in system, fused salt all condenses, and all e-quipment and pipes all will be faced with and scrap when the time comes, and the loss causing is inestimable.So how safely and effectively the intrasystem fused salt of emptying becomes an important topic of current solar energy thermal-power-generating.Before my company, there is such patent, 201320096444.0 the large-scale fused salt tank arrangement for heat reservoir, this patent and this patent belong to the part in solar energy optical-thermal electric power station system together, and this patent is fused salt storage tank, the technical description that this patent is system evacuation.
Utility model content
The technical problem to be solved in the present invention is: propose a kind of photo-thermal power generation energy-storage system Molten salt heating system, be intended to solve fused salt heat reservoir when running into emergency case as extensive long-term power-off and equipment fault, the safety dumping problem of fused salt in system.
Technical problem to be solved in the utility model realizes by the following technical solutions:
For the fused salt of photo-thermal power generation, from an emptying system, it is characterized in that: comprise fused salt storage tank, fused salt firing equipment and fused salt discharge pond, between described fused salt storage tank and fused salt firing equipment by two airtight connections of connecting pipe; Described fused salt firing equipment comprises fused salt heating furnace and fused salt circulating storage tank, between described fused salt heating furnace and fused salt circulating storage tank, by two circulation lines, connects into fused salt closed circuit; Described fused salt storage tank is connected with fused salt discharge pond by emptying pipeline, on described emptying pipeline, high-temperature molten salt exhaust-valve is installed.
Described fused salt storage tank arranges one or more, between plural fused salt storage tank, by molten salt pipeline, is communicated with.
Described fused salt discharge pond is positioned at the extreme lower position of whole system.
Described fused salt heating furnace is positioned at the extreme higher position of whole system.
The bottom of described fused salt storage tank and fused salt circulating storage tank is respectively equipped with delivery pipe, and delivery pipe is provided with valve.
Two described connecting pipes, two circulation lines and emptying pipeline all keep the angle of inclination of 3～8 ° with horizontal direction.
Fused salt in fused salt heating furnace and fused salt circulating storage tank all enters in fused salt storage tank through connecting pipe, then enters fused salt discharge pond by fused salt storage tank.
The beneficial effects of the utility model are:
The utility model provides a kind of fused salt for photo-thermal power generation from emptying system, when systemic breakdown all devices cannot turn round, can in time the fused salt in system be derived, can be before fused salt condenses, rely on the deadweight of fused salt that intrasystem fused salt is all discharged, avoid fused salt to condense in e-quipment and pipe and cause equipment scrapping.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
In figure: 1, fused salt heating furnace; 2, fused salt circulating storage tank; 3, fused salt storage tank; 4, fused salt discharge pond; 5 first circulation lines; 6, the second circulation line; 7, the first connecting pipe; 8 second connecting pipes; 9, emptying pipeline; 10 high-temperature molten salt control valves; 11, high-temperature molten salt exhaust-valve; 12 first high-temperature melting salt pumps; 13, the second high-temperature melting salt pump.
The specific embodiment
For technological means, creation characteristic that the utility model is realized, reach object and effect is easy to understand, below in conjunction with specific embodiments and the drawings, further set forth the utility model, but following embodiment is only preferred embodiment of the present utility model, not all.Embodiment based in embodiment, those skilled in the art are other embodiment that obtains under the prerequisite of not making creative work, all belongs to the protection domain of this patent.
As shown in Figure 1, a kind of fused salt for photo-thermal power generation is from emptying system, comprises fused salt storage tank 3, fused salt firing equipment and fused salt discharge pond 4, between fused salt storage tank 3 and fused salt firing equipment by two connecting pipes (7,8) airtight connection.
Fused salt firing equipment comprises fused salt heating furnace 1 and fused salt circulating storage tank 2, between fused salt heating furnace 1 and fused salt circulating storage tank 2, by two circulation lines (5,6), connect into fused salt closed circuit, article two, circulation line (5,6) is respectively the first circulation line 5 and the second circulation line 6, the first circulation line 5 two ends connect respectively fused salt heating furnace 1 upper end and fused salt circulating storage tank 2 upper ends, and the second circulation line 6 two ends connect respectively fused salt heating furnace 1 lower end and the first high-temperature melting salt pump 12 that is arranged on fused salt circulating storage tank 2 upper ends.
Fused salt storage tank 3 is connected with fused salt discharge pond 4 by emptying pipeline 9, on emptying pipeline 9, high-temperature molten salt exhaust-valve 11 is installed.
Article two, connecting pipe (7,8) is respectively the first connecting pipe 7 and the second connecting pipe 8, on the second connecting pipe 8, high-temperature molten salt control valve 10 is installed, the second connecting pipe 8 two ends connect respectively the lower end of fused salt circulating storage tank 2 and the upper end of fused salt storage tank 3, and the first connecting pipe 7 two ends connect respectively the upper end of the second high-temperature melting salt pump 13 with the fused salt storage tank 3 that are arranged on fused salt circulating storage tank 2 upper ends.
Working-flow is:
During normal work, fused salt is in fused salt circulating storage tank 2, by the first high-temperature melting salt pump 12 and the second circulation line 6, enter in fused salt heating furnace 1, by the first circulation line 5, got back in fused salt circulating storage tank 2, so circulation, when temperature of molten salt reaches after design temperature again, via the second high-temperature melting salt pump 13 and the first connecting pipe 7, enter in fused salt storage tank 3 and store.
When there is emergency case, all devices shuts down, and the fused salt in fused salt heating furnace 1 relies on gravity by the second circulation line 6, flows in fused salt circulating storage tank 2; Open high-temperature molten salt control valve 10, the fused salt in fused salt circulating storage tank 2 relies on gravity, by the second connecting pipe 8, flows in fused salt storage tank 3; Open high-temperature molten salt exhaust-valve 11, the fused salt in fused salt storage tank 3 all relies on gravity to flow in fused salt discharge pond 4.
More than show and described basic principle of the present utility model, principal character and advantage of the present utility model.The technical staff of the industry should understand; the utility model is not restricted to the described embodiments; what in above-described embodiment and description, describe is only preference of the present utility model; be not used for limiting the utility model; do not departing under the prerequisite of the utility model spirit and scope; the utility model also has various changes and modifications, and these changes and improvements all fall within the scope of claimed the utility model.The claimed scope of the utility model is defined by appending claims and equivalent thereof.
Claims (6)
- For the fused salt of photo-thermal power generation from an emptying system, it is characterized in that: comprise fused salt storage tank, fused salt firing equipment and fused salt discharge pond, between described fused salt storage tank and fused salt firing equipment by two airtight connections of connecting pipe; Described fused salt firing equipment comprises fused salt heating furnace and fused salt circulating storage tank, between described fused salt heating furnace and fused salt circulating storage tank, by two circulation lines, connects into fused salt closed circuit; Described fused salt storage tank is connected with fused salt discharge pond by emptying pipeline, on described emptying pipeline, high-temperature molten salt exhaust-valve is installed.
- 2. the fused salt for photo-thermal power generation according to claim 1, from emptying system, is characterized in that: described fused salt storage tank arranges one or more, between plural fused salt storage tank, by molten salt pipeline, is communicated with.
- 3. the fused salt for photo-thermal power generation according to claim 1, from emptying system, is characterized in that: described fused salt discharge pond is positioned at the extreme lower position of whole system.
- 4. the fused salt for photo-thermal power generation according to claim 1, from emptying system, is characterized in that: described fused salt heating furnace is positioned at the extreme higher position of whole system.
- 5. the fused salt for photo-thermal power generation according to claim 1, from emptying system, is characterized in that: the bottom of described fused salt storage tank and fused salt circulating storage tank is respectively equipped with delivery pipe, and delivery pipe is provided with valve.
- 6. the fused salt for photo-thermal power generation according to claim 1, from emptying system, is characterized in that: two described connecting pipes, two circulation lines and emptying pipeline all keep the angle of inclination of 3～8 ° with horizontal direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420237342.0U CN203837309U (en) | 2014-05-09 | 2014-05-09 | Fused salt self-evacuating system for photo-thermal power generation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420237342.0U CN203837309U (en) | 2014-05-09 | 2014-05-09 | Fused salt self-evacuating system for photo-thermal power generation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203837309U true CN203837309U (en) | 2014-09-17 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420237342.0U Expired - Fee Related CN203837309U (en) | 2014-05-09 | 2014-05-09 | Fused salt self-evacuating system for photo-thermal power generation |
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| Country | Link |
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| CN (1) | CN203837309U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105910303A (en) * | 2016-05-30 | 2016-08-31 | 华电电力科学研究院 | Self purification structure and method for solar energy thermal power plant adopting fused salt as medium |
| CN108120022A (en) * | 2018-01-17 | 2018-06-05 | 东方电气集团东方锅炉股份有限公司 | The heating unit and heating means of fused salt in a kind of heat reservoir |
| CN110530039A (en) * | 2019-09-04 | 2019-12-03 | 中国电建集团中南勘测设计研究院有限公司 | A kind of the fused salt emptying device and method of fused salt linear Fresnel formula heat collector |
-
2014
- 2014-05-09 CN CN201420237342.0U patent/CN203837309U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105910303A (en) * | 2016-05-30 | 2016-08-31 | 华电电力科学研究院 | Self purification structure and method for solar energy thermal power plant adopting fused salt as medium |
| CN108120022A (en) * | 2018-01-17 | 2018-06-05 | 东方电气集团东方锅炉股份有限公司 | The heating unit and heating means of fused salt in a kind of heat reservoir |
| CN108120022B (en) * | 2018-01-17 | 2023-06-02 | 东方电气集团东方锅炉股份有限公司 | Molten salt heating device and method in heat storage system |
| CN110530039A (en) * | 2019-09-04 | 2019-12-03 | 中国电建集团中南勘测设计研究院有限公司 | A kind of the fused salt emptying device and method of fused salt linear Fresnel formula heat collector |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140917 |