CN104266358A - Fused salt energy storage heating heat-exchange system - Google Patents
Fused salt energy storage heating heat-exchange system Download PDFInfo
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- CN104266358A CN104266358A CN201410494419.7A CN201410494419A CN104266358A CN 104266358 A CN104266358 A CN 104266358A CN 201410494419 A CN201410494419 A CN 201410494419A CN 104266358 A CN104266358 A CN 104266358A
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Abstract
Disclosed is a fused salt energy storage heating heat-exchange system. An integrated device with a large-capacity and good thermal insulation fused salt tank, an electric heating tube for heating in a fused salt liquid and a radiation heat exchange tube which is mounted in the fused salt liquid and used for heat exchange is applied, thereby, the complicated process of fused salt energy storage and heat exchange application is simplified, and a technology of fused salt energy storage is easy to implement and extremely low in costs; direct heating is performed in the fused salt liquid so that the heating efficiency is high, radiant heat exchange is performed in the fused salt liquid so that the heat exchange efficiency is high, energy is controllable, safety and reliability are achieved, and off-peak electric energy is stored as required; the energy is used for heat supply of residential quarters in winter, the ultra-large fused salt tank is used, and heat energy is stored by the off-peak electric energy at night; high-pressure steam is generated through the heat exchange tube to push a steam turbine to generate electricity during on-peak power utilization, and insufficient power can be supplemented; compared with other energy storing methods, the method of electricity generation by the fused salt energy storage has the advantages that the investment is small, the method can rapidly take effect, the price of energy storing media is low, the source is wide, materials are easy to obtain, and the heat conversion efficiency is high.
Description
Technical field
The present invention relates to molten salt energy-storage heating technical field of heat exchange, especially relate to a kind of molten salt energy-storage heating heat-exchange system.
Background technology
At present; Supply of electric power peak-valley difference apart from power supply shortage during large, peak of power consumption, can not to satisfy the demands and the night dip electricity usage electric power energy very little, very larger than row can not be used effectively, the energy storage of electric power low ebb, balance peak valley electric power contradiction, be very necessary, what the energy storage of electric power low ebb extensively adopted at present is; Hydroenergy storage station, utilize night dip electric power, adopt large-scale water pumper that the water source of lower, the reservoir taken out toward eminence are put aside, during peak of power consumption on daytime, the drop of water is utilized to promote hydraulic turbine generating, the supply of electric power making up peak of power consumption is not enough, but, water-storage is by the restriction of geographical conditions, invest huge and conversion efficiency less than 70%, fused salt thermal storage and energy accumulation; Be an emerging energy storage technology, and the mode that molten salt energy-storage generally adopts at present is; High temperature salt cellar, low temperature salt cellar, heat exchanger, electric heater, circulating pump, cyclic high-temperature fused salt liquid, carry out heating heat exchange; For the generating of high steam pushing turbine or for resident's winter heating, current fused salt heats, circulate, store, heat transmission equipment cost is high, whole system design is complicated, and all pipeline equipments need preheating insulation, keep liquid fused salt temperature to be not less than 150 DEG C, not so the existing possibility of solidifying of liquid fused salt, and circulation more than 500 DEG C high-temp liquids, comprise heat transmission equipment, apparatus, material, in current practical application, also have a lot of problem, and high-temp liquid circulation, technical requirement is very high, there is potential safety hazard, etc. current unsurmountable shortcoming.
A kind of molten salt energy-storage heating heat-exchange system; Adopt that Large Copacity is incubated good fused salt tank, liquid fused salt does not flow, adopt the mode of carrying out heating, installing in fused salt inside radiation heat transfer pipe at fused salt inner utilization electric heating tube to carry out heat exchange, enormously simplify the complex process of fused salt heating, heat exchange, molten salt energy-storage accumulation of heat is become and implements the technology easy, cost is extremely low, a kind of molten salt energy-storage heating heat-exchange system; As required, select the size of fused salt tank, store valley electricity; Can be used for steam turbine power generation or use for the heat supply in winter of residential quarter.
Summary of the invention
The object of the invention is for current valley power energy storage mode; By condition restriction, efficiency is low, investment is large and molten salt energy-storage equipment is complicated at present, cost is high, there is the deficiencies such as potential safety hazard, not easily enforcement, and a kind of molten salt energy-storage heating heat-exchange system provided.
The technical solution adopted for the present invention to solve the technical problems is, as required, adopt large volume fused salt storage tank, additional composite heat-insulating layer, presses close to tank body part and adopts resistant to elevated temperatures aluminum silicate insulation material, middle employing multilayer rock cotton board, between shell steel plate and rock wool, polyurethane foam material is adopted to pour into about 100mm thick, shell adopts 3mm steel plate welding production, interior tank body adopts the austenite stainless steel plate welding of thickness 8-10mm heat-and corrosion-resistant to make, the present invention adopts square tank body, as volume super large can adopt circular tank, at the horizontal welding heat-and corrosion-resistant of tank body lower part, Austenitic stainless steel pipe is as heating muff, steel pipe two ends are exposed, to insert electric heater, the radical of heating muff, select according to tank body size, but required be 3 multiple, to facilitate connection three phase mains, heating muff is not less than 300mm apart from bottom, in order to avoid Long-Time Service not fusible sediment affect heating effect, heating muff one end insertion electric heater, reserve connecting line, by filled thermal insulation materials, heating muff other end insulation plug sealing thermal insulation, horizontal welding heat-and corrosion-resistant in the middle part of tank body, Austenitic stainless steel pipe is as heat exchange sleeve, and steel pipe two ends are exposed, to insert heat exchanger tube, the radical of heat exchange sleeve, select according to tank body size, heat exchanger tube adopts the stainless steel tube of heat-and corrosion-resistant, and heat exchange steel tube inserts in the middle of heat exchange sleeve, by the insulation plug at heat exchange sleeve two ends, heat exchanger tube is fixed on centre, heat exchange steel tube is radiation-absorbing warm in heat exchange sleeve, steam is produced through hyperthermia radiation by the water flowed in heat exchange steel tube, many heat exchange steel tubes are roundabout penetrates heat exchange sleeve, strengthen heat exchange steel tube caliber, increase heat exchange area, can produce high steam.
Beneficial effect of the present invention is: be incubated good fused salt tank owing to adopting Large Copacity, liquid fused salt does not flow, adopt and heat at fused salt inner utilization electric heating tube, in fused salt inside, the integrated apparatus that radiation heat transfer pipe carries out heat exchange is installed, enormously simplify fused salt and store night dip electric energy heat, the complex process of heat exchange application, molten salt energy-storage accumulation of heat is become and implements easily, the technology that cost is extremely low, the present invention adopts fused salt liquid internal directly to heat, the efficiency of heating surface is high, adopt the heat exchange of fused salt liquid internal radiation, heat exchange efficiency is high, energy-controllable, safe and reliable, as required, select the size of fused salt tank, store valley electricity, heat supply in winter for residential quarter uses, adopt ultra-large type fused salt tank, utilize night dip electric energy, heat energy storage, high steam, pushing turbine generating is produced during peak of power consumption on daytime, by heat exchanger tube, electric power when supplementing peak of power consumption is not enough, and molten salt energy-storage generating is compared with other energy storage mode, have that investment is little, instant effect, energy-accumulating medium price are low, wide material sources, draw materials easily, thermal conversion efficiency advantages of higher.
Accompanying drawing explanation
Below in conjunction with accompanying drawing, the invention will be further described.
Accompanying drawing 1 is structure chart of the present invention.
Accompanying drawing 2 is side views of fused salt tank of the present invention.
Accompanying drawing 3 is heating tube layer top views of fused salt tank of the present invention.
Accompanying drawing 4 is heat exchange tube layer top views of fused salt tank of the present invention.
Accompanying drawing 5 is structure charts of fused salt heat exchanging of the present invention generating.
In figure: 1. fused salt tank, 2. heat exchanger tube, 3. heater, 4. electromagnetic flow valve, 5. heat supply-water pump, 6. storage tank, 7. heating supply-water pump, 8. heating water tank, 9. steam-heating pipe, 10. add hot water supplying pipe, 11. heating feed pipes, 12. heating tube connectors, 13. composite heat-insulating layers, 14. fused salt tank bodies, 15. heat exchange sleeve, 16. insulation plugs, 17. heating muff insulation plugs, 18. heating muffs, 19. heater lead water, 20. thermometers, 21. temperature sensors, 22. reinforced lids, 23. fused salt tank passages, 24. fused salt liquid, 25. heating tank vapor cocks, 26. water heating tank temperature sensors, 27. heating feed pipes, 28. storage tank expansion drums, 29. heating return pipes, 30. heating tube bridge pieces, 31. steam accumulators, 32. high-pressure steam pipes, 33. steam turbine generators, 34. gas turbine exhaust gas pipes, 35. condensers, 36. cooler connecting tubes, 37. coolers, 38. condensing water conduits, 39. condensed water process tanks, 40. high temperature water tanks, 41. coolant circulation pumps.
Detailed description of the invention
The present invention includes in accompanying drawing: fused salt tank (1), heat exchanger tube (2), heater (3), electromagnetic flow valve (4), heating supply-water pump (5), storage tank (6), heating supply-water pump (7), heating water tank (8), steam-heating pipe (9), add hot water supplying pipe (10), heating feed pipe (11), heating tube connector (12), heating feed pipe (27) connects heating return pipe (29) by heating user pipe network, between be interconnected and form, wherein fused salt tank (1), by heat exchange sleeve (15), heating muff (18), fused salt tank body (14) is welded into as a whole, outside employing composite heat-insulating layer (13), the shell made by Plate Welding formed, fused salt tank (1) top is provided with charge door and reinforced lid (22), and thermometer (20) is installed, temperature sensor (21), fused salt tank passage (23), the feature of fused salt tank (1) is, fused salt tank body (14) is by heat-and corrosion-resistant, the austenite stainless steel plate welding that 8-10mm is thick is made, the present invention adopts square tank body, as volume super large can adopt circular tank, heating muff (18) is welded as a whole with fused salt tank body (14) tank body lower part is horizontal, heating muff (18) adopts heat-and corrosion-resistant, Austenitic stainless steel pipe makes, fused salt tank body (14) outer 50mm is exposed at steel pipe two ends, to insert heater (3), the radical of heating muff (18), select according to tank body size, but required be 3 multiple, to facilitate connection three phase mains, heating muff (18) is not less than 300mm apart from bottom, heater (3) is inserted in heating muff (18) one end, after drawing heater lead (19), by filled thermal insulation materials, heating muff (18) other end heating muff is incubated plug (17) sealing thermal insulation, heat exchange sleeve (15) adopts heat-and corrosion-resistant, Austenitic stainless steel pipe makes, be fixed on fused salt tank body (14) middle part, be welded as a whole with fused salt tank body (14), fused salt tank body (14) outer 50mm is exposed at steel pipe two ends, through heat exchanger tube (2) in heating muff (18) hole, by the insulation plug (16) at two ends, heat exchanger tube (2) is fixed on centre, connected by heating tube bridge piece (30) as required, wherein composite heat-insulating layer (13) internal layer of fused salt tank (1) is wrapped up by resistant to elevated temperatures alumina silicate heat-preservation cotton, moderate soak layer is rock cotton board, pour into the thick polyurethane foam material of 100mm between rock wool heat-preservation layer to shell steel plate formed, to ensure heat insulation effect.
The present invention is when night dip rate period works, heater (3) electrified regulation in the heating muff (18) of fused salt tank (1) bottom, due to heating muff (18) directly heat in fused salt liquid (24) inside, heat loss is little, the efficiency of heating surface is high, heat automatic control electric route temperature sensor (21) detection control, stop heating when fused salt liquid (24) temperature reaches 500 DEG C, during peak of power consumption heat exchange work; Heating supply-water pump (5) extracts water, by adding hot water supplying pipe (10), supply heat exchanger tube (2) generation steam, by heating tube connector (12), steam-heating pipe (9), the water in heating water tank (8) being heated, the water in heating water tank (8) from storage tank (6); Supplied by heating supply-water pump (7), heating feed pipe (11), the temperature of heating water tank (8) interior water; Controlled quantity of steam by water heating tank temperature sensor (26) detection, control circuit regulate the temperature of heating water tank (8) interior water to reach heating set requirement according to design temperature, electromagnetic flow valve (4), reach the water of heating set requirement by heating feed pipe (27), enter heating user pipe network, through heating user heat radiation backwater by heating return pipe (29), be back to storage tank (6).
The present invention is as also comprising in accompanying drawing 5 during energy storing and electricity generating, fused salt tank (1), heater (3), heating supply-water pump (5), add hot water supplying pipe (10), electromagnetic flow valve (4), heat exchanger tube (2), steam accumulator, (31), high-pressure steam pipe (32), steam turbine generator (33), gas turbine exhaust gas pipe (34), condenser (35), cooler connecting tube (36), coolant circulation pump (41), cooler (37), condensing water conduit (38), condensate treating apparatus (39), being interconnected between high temperature water tank (40) formed, and wherein heat exchanger tube (2) adds Large Diameter Pipeline, reduce the gap between heat exchange sleeve (15), increase heat exchange area, heat exchanger tube (2) adopts steel high pressure seamless pipe, by heating supply-water pump (5), add hot water supplying pipe (10), the high-temperature water provided, controlled by electromagnetic flow valve (4), the high temperature saturated vapor of steam pressure 2.7-2.8Mpa/270-280 DEG C is produced in heat exchanger tube (2), by steam accumulator (31), high-pressure steam pipe (32), promote steam turbine generator (33) generation electric energy and be delivered to electrical network, the low-pressure steam after acting is by gas turbine exhaust gas pipe (34), the high-temperature water of pressure 0.25-0.3Mpa/120-130 DEG C is become, by condensing water conduit (38) by the cooling of condenser (35), the process of condensed water process (39), flow back to high temperature water tank (40) to circulate for heating supply-water pump (5), the wherein cooling of condenser (35), by coolant circulation pump (41), cooled to outdoor large-scale cooler (37) or cooling tower by cooler connecting tube (36).
Claims (6)
1. a molten salt energy-storage heating heat-exchange system, is characterized in that, by fused salt tank (1), heat exchanger tube (2), heater (3), electromagnetic flow valve (4), heating supply-water pump (5), storage tank (6), heating supply-water pump (7), heating water tank (8), steam-heating pipe (9), add hot water supplying pipe (10), heating feed pipe (11), heating tube connector (12), heating feed pipe (27) connects heating return pipe (29) by heating user pipe network, between be interconnected and form, wherein fused salt tank (1), by heat exchange sleeve (15), heating muff (18), fused salt tank body (14) is welded into as a whole, outside employing composite heat-insulating layer (13), the shell made by Plate Welding formed, wherein fused salt tank (1) top is provided with charge door and reinforced lid (22), and thermometer (20) is installed, temperature sensor (21), fused salt tank passage (23).
2. a kind of molten salt energy-storage heating heat-exchange system according to claim 1, is characterized in that: the feature of fused salt tank (1) is, fused salt tank body (14) is by heat-and corrosion-resistant, the austenite stainless steel plate welding of the thick heat-and corrosion-resistant of 8-10mm is made, adopt square tank body, heating muff (18) is welded as a whole with fused salt tank body (14) tank body lower part is horizontal, heating muff (18) adopts heat-and corrosion-resistant, Austenitic stainless steel pipe makes, fused salt tank body (14) 50mm is exposed at steel pipe two ends, to insert heater (3), the radical of heating muff (18), select according to tank body size, but required be 3 multiple, heating muff (18) is not less than 300mm apart from bottom, heater (3) is inserted in heating muff (18) one end, draw heater lead (19), by filled thermal insulation materials, heating muff (18) other end heating muff is incubated plug (17) sealing thermal insulation.
3. a kind of molten salt energy-storage heating heat-exchange system according to claim 1, be further characterized in that: heat exchange sleeve (15) adopt heat-and corrosion-resistant, Austenitic stainless steel pipe makes, is fixed on fused salt tank body (14) middle part, is welded as a whole with fused salt tank body (14), steel pipe two ends expose in fused salt tank body (14) 50mm, heating muff (18) hole through heat exchanger tube (2), by the insulation plug (16) at two ends, heat exchanger tube (2) is fixed on centre, connected by heating tube bridge piece (30) as required.
4. a kind of molten salt energy-storage heating heat-exchange system according to claim 1, is further characterized in that: wherein fused salt tank (1) composite heat-insulating layer (13) internal layer is wrapped up by resistant to elevated temperatures alumina silicate heat-preservation cotton, moderate soak layer is rock wool, pour into 80-100mm polyurethane foam material between rock wool heat-preservation layer to shell steel plate.
5. a kind of molten salt energy-storage heating heat-exchange system according to claim 1, be further characterized in that: in the work of night dip rate period, heat automatic control electric route temperature sensor (21) detection control, stop heating when fused salt liquid (24) temperature reaches 500 DEG C.
6. a kind of molten salt energy-storage heating heat-exchange system according to claim 1, is further characterized in that: as also comprising in accompanying drawing 5 during energy storing and electricity generating, fused salt tank (1), heater (3), heating supply-water pump (5), add hot water supplying pipe (10), electromagnetic flow valve (4), heat exchanger tube (2), steam accumulator, (31), high-pressure steam pipe (32), steam turbine generator (33), gas turbine exhaust gas pipe (34), condenser (35), cooler connecting tube (36), cooler (37), condensing water conduit (38), condensed water process (39), being interconnected between high temperature water tank (40) formed, wherein heat exchanger tube (2) adds Large Diameter Pipeline, increase heat exchange area, heat exchanger tube (2) adopts steel high pressure seamless pipe.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410494419.7A CN104266358A (en) | 2014-09-24 | 2014-09-24 | Fused salt energy storage heating heat-exchange system |
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| CN201410494419.7A CN104266358A (en) | 2014-09-24 | 2014-09-24 | Fused salt energy storage heating heat-exchange system |
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| CN104843369A (en) * | 2015-04-30 | 2015-08-19 | 中冶南方工程技术有限公司 | Electrical heating structure of solar photo-thermal power generation molten salt storage tank |
| CN104964260A (en) * | 2015-07-02 | 2015-10-07 | 大连交通大学 | Device for transferring heat in solid energy storage body by means of high-temperature steam |
| CN105091333A (en) * | 2015-07-28 | 2015-11-25 | 上海电气集团股份有限公司 | Novel molten salt tank for heat storage |
| CN107238203A (en) * | 2017-07-10 | 2017-10-10 | 黄善清 | The single tank fused salt heat storage electric boiler and heat-exchange method of a kind of heat pipe heat exchanging |
| CN107537938A (en) * | 2017-09-30 | 2018-01-05 | 江苏金仕达汽配科技有限公司 | Automobile stamping heat recovery system and its control method |
| CN108007246A (en) * | 2017-11-28 | 2018-05-08 | 北京工业大学 | The regulatable low ebb electrical heating fused salt of heat exchange amount stores heat-releasing device and application method |
| CN108266791A (en) * | 2016-12-30 | 2018-07-10 | 百吉瑞（天津）新能源有限公司 | A kind of molten salt energy-storage and electric boiler complementation heating system |
| CN108534576A (en) * | 2018-06-13 | 2018-09-14 | 常州索拉尔熔盐泵阀科技有限公司 | A kind of power generation molten salt energy storage system of fired power generating unit power peak regulation |
| CN108758910A (en) * | 2018-06-20 | 2018-11-06 | 安徽南国机电科技发展有限公司 | A kind of hold over system for air-conditioner energy-accumulation |
| CN108955330A (en) * | 2018-08-20 | 2018-12-07 | 上海冀晟能源科技有限公司 | A kind of static state high-temperature fused salt tank |
| CN109059595A (en) * | 2018-10-08 | 2018-12-21 | 山东国储动力科技有限公司 | A kind of fused salt regenerative apparatus |
| WO2019080809A1 (en) * | 2017-10-24 | 2019-05-02 | 深圳市爱能森科技有限公司 | Solar thermal-biomass power generating system |
| CN110186025A (en) * | 2019-04-23 | 2019-08-30 | 李渊 | A kind of fused salt electric heat storage boiler |
| CN112963211A (en) * | 2021-03-26 | 2021-06-15 | 华能江阴燃机热电有限责任公司 | Steam turbine of cogeneration system |
| CN113028872A (en) * | 2021-04-09 | 2021-06-25 | 沈阳世杰电器有限公司 | Solid electric heat storage system capable of cutting off heat output |
| CN117968137A (en) * | 2024-03-28 | 2024-05-03 | 西安新航燃气能源有限公司 | Off-peak electricity heat storage house type heating system |
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| CN104843369A (en) * | 2015-04-30 | 2015-08-19 | 中冶南方工程技术有限公司 | Electrical heating structure of solar photo-thermal power generation molten salt storage tank |
| CN104964260A (en) * | 2015-07-02 | 2015-10-07 | 大连交通大学 | Device for transferring heat in solid energy storage body by means of high-temperature steam |
| CN104964260B (en) * | 2015-07-02 | 2017-05-31 | 大连交通大学 | The device of heat in a kind of utilization high-temperature steam trasfer of solids storage bodies |
| CN105091333A (en) * | 2015-07-28 | 2015-11-25 | 上海电气集团股份有限公司 | Novel molten salt tank for heat storage |
| CN105091333B (en) * | 2015-07-28 | 2018-03-02 | 上海电气集团股份有限公司 | A kind of heat accumulation melting salt cellar |
| CN108266791A (en) * | 2016-12-30 | 2018-07-10 | 百吉瑞（天津）新能源有限公司 | A kind of molten salt energy-storage and electric boiler complementation heating system |
| CN107238203A (en) * | 2017-07-10 | 2017-10-10 | 黄善清 | The single tank fused salt heat storage electric boiler and heat-exchange method of a kind of heat pipe heat exchanging |
| CN107537938A (en) * | 2017-09-30 | 2018-01-05 | 江苏金仕达汽配科技有限公司 | Automobile stamping heat recovery system and its control method |
| WO2019080809A1 (en) * | 2017-10-24 | 2019-05-02 | 深圳市爱能森科技有限公司 | Solar thermal-biomass power generating system |
| CN108007246A (en) * | 2017-11-28 | 2018-05-08 | 北京工业大学 | The regulatable low ebb electrical heating fused salt of heat exchange amount stores heat-releasing device and application method |
| CN108534576A (en) * | 2018-06-13 | 2018-09-14 | 常州索拉尔熔盐泵阀科技有限公司 | A kind of power generation molten salt energy storage system of fired power generating unit power peak regulation |
| CN108758910A (en) * | 2018-06-20 | 2018-11-06 | 安徽南国机电科技发展有限公司 | A kind of hold over system for air-conditioner energy-accumulation |
| CN108955330A (en) * | 2018-08-20 | 2018-12-07 | 上海冀晟能源科技有限公司 | A kind of static state high-temperature fused salt tank |
| CN108955330B (en) * | 2018-08-20 | 2024-04-26 | 上海冀晟能源科技有限公司 | Static high-temperature molten salt tank |
| CN109059595A (en) * | 2018-10-08 | 2018-12-21 | 山东国储动力科技有限公司 | A kind of fused salt regenerative apparatus |
| CN109059595B (en) * | 2018-10-08 | 2023-11-24 | 临沂智慧新能源科技有限公司 | Fused salt heat accumulation device |
| CN110186025A (en) * | 2019-04-23 | 2019-08-30 | 李渊 | A kind of fused salt electric heat storage boiler |
| CN112963211A (en) * | 2021-03-26 | 2021-06-15 | 华能江阴燃机热电有限责任公司 | Steam turbine of cogeneration system |
| CN113028872A (en) * | 2021-04-09 | 2021-06-25 | 沈阳世杰电器有限公司 | Solid electric heat storage system capable of cutting off heat output |
| CN117968137A (en) * | 2024-03-28 | 2024-05-03 | 西安新航燃气能源有限公司 | Off-peak electricity heat storage house type heating system |
| CN117968137B (en) * | 2024-03-28 | 2024-06-07 | 西安新航燃气能源有限公司 | Off-peak electricity heat storage house type heating system |
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Application publication date: 20150107 |