CN204678943U - A kind of single tank regenerative apparatus with phase-transition heat-storage - Google Patents
A kind of single tank regenerative apparatus with phase-transition heat-storage Download PDFInfo
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- CN204678943U CN204678943U CN201520322459.3U CN201520322459U CN204678943U CN 204678943 U CN204678943 U CN 204678943U CN 201520322459 U CN201520322459 U CN 201520322459U CN 204678943 U CN204678943 U CN 204678943U
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- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
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- Y02E60/14—Thermal energy storage
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Abstract
The utility model discloses a kind of single tank regenerative apparatus with phase-transition heat-storage, comprising: single tank storage heater, its outer top is provided with heat storage medium entrance, and outer bottom is provided with heat storage medium outlet; Thermal insulation board, it is arranged in single tank storage heater, coaxially arranged with single tank storage heater; Phase transition heat accumulation unit, it is arranged in thermal insulation board, is fixed in single tank storage heater by tube sheet, fills phase-change heat accumulation medium in phase transition heat accumulation unit; Heat release coil heat exchanger, it is arranged in the top, circular passage that thermal insulation board and single tank storage heater are formed, and the outlet of heat release coil heat exchanger and entrance export with exothermic medium with the exothermic medium entrance of energy utilization device respectively and be connected; Heating plant, it is arranged in outside single tank storage heater; Heat transfer unit (HTU), it is arranged in single tank storage heater inner bottom part, and heat transfer unit (HTU) is connected with heating plant.The beneficial effects of the utility model: the single tank regenerative apparatus adding phase-transition heat-storage, compact conformation, amount of stored heat increases; Heat release process is more stable; Operating temperature range is wide.
Description
Technical field
The utility model relates to accumulation of heat technical field of energy utilization, in particular to a kind of single tank regenerative apparatus with phase-transition heat-storage.
Background technology
Quiet " Under the Dome " of bavin is the strong flashpoint of " energy-life " problem, and the haze problem that energy resource consumption brings has focused on again the sight line of people.If do not carry out the adjustment of energy resource structure, haze problem is difficult to solve, and even can restrict the economic development of China.Therefore, Renewable Energy Development progressively becomes China's state basic policy.Accumulation of energy is the key link that regenerative resource scale utilizes, and accumulation of energy can improve solar energy high temperature efficiency of utilization, also can improve current wind-powered electricity generation, photovoltaic generation is difficult to grid-connected problem, and effectively solves electrical network peak-valley difference problem round the clock.
More ripe solar energy high temperature heat utilization heat accumulation method is two tank sensible heat accumulation of heats at present, regenerative apparatus is huge, system investments maintenance cost is high, in order to reduce accumulation of heat cost, applicant patent ZL201420140252.X and ZL201420138089.3 discloses a kind of single tank energy storage equipment and one list tank electric energy energy storage equipment, solar thermal energy or electric energy are stored in single tank with the form of sensible heat, relend and realize storing of heat energy with immersion heat exchanger and discharge, more two tank hold over system has saved cost, saves space.But this patent only achieves sensible heat accumulation of heat, and reckons without latent heat utilization, in order to improve heat storage efficiency, the utility model proposes a kind of regenerative apparatus with phase-transition heat-storage, both realizing sensible heat accumulation of heat, also realize latent-heat storage.
Utility model content
For the weak point existed in the problems referred to above, the utility model proposes and a kind of single tank regenerative apparatus with phase-transition heat-storage and using method thereof are provided, both realized sensible heat accumulation of heat, and also realized latent-heat storage.
For achieving the above object, the utility model provides a kind of single tank regenerative apparatus with phase-transition heat-storage, comprising:
Single tank storage heater, the top of its outside is provided with heat storage medium entrance, and outside bottom is provided with heat storage medium outlet;
Thermal insulation board, it is inner that it is arranged in described single tank storage heater, and coaxially arranged with described single tank storage heater;
Phase transition heat accumulation unit, it is inner that it is arranged in described thermal insulation board, and it is inner to be fixed on described single tank storage heater by tube sheet, fills phase-change heat accumulation medium in described phase transition heat accumulation unit;
Heat release coil heat exchanger, it is arranged in the top, circular passage that described thermal insulation board and described single tank storage heater are formed, and the outlet of described heat release coil heat exchanger and entrance export with exothermic medium with the exothermic medium entrance of energy utilization device respectively and be connected;
Heating plant, it is arranged in outside described single tank storage heater;
Heat transfer unit (HTU), it is arranged in described single tank storage heater inner bottom part, and described heat transfer unit (HTU) is connected with described heating plant.
Improve further as the utility model, described heating plant is solar thermal collector and/or power supply unit; Described heat transfer unit (HTU) is heat-storage plate heat exchange of heat pipe or coil pipe electric heater or cylindrical electrically heated rod.
Improve further as the utility model, the heat transfer medium outlet of described heat-storage plate heat exchange of heat pipe is connected with the heat transfer medium outlet of solar thermal collector with the heat transfer medium inlet of solar thermal collector by tube connector respectively with the heat transfer medium inlet of described heat-storage plate heat exchange of heat pipe.
Improve further as the utility model, the power import of described coil pipe electric heater or described cylindrical electrically heated rod exports with the power supply of described power supply unit and is connected.
Improve further as the utility model, described heat storage medium entrance is connected with the heat transfer medium outlet of solar thermal collector and the heat transfer medium inlet of solar thermal collector by tube connector respectively with described heat storage medium outlet.
Improve further as the utility model, in described heat release coil heat exchanger and described heat-storage plate heat exchange of heat pipe and phase transition heat accumulation unit, augmentation of heat transfer fin is arranged in the outside of pipe comb.
Improve further as the utility model, described phase transition heat accumulation unit is arranged in the inside of described thermal insulation board in the mode that pipe is arranged, and pipe row is from the horizontal by any angle.
The beneficial effects of the utility model are:
1, the single tank heat storage device structure adding phase-transition heat-storage is compact, increases than amount of stored heat with single tank of formed objects;
2, in heat release process, phase-change heat accumulation medium is in the large duration length of phase transformation range thermal discharge and variations in temperature is little, and heat release process is more stable;
3, according to the temperature requirements of energy utilization device, suitable heat transfer, accumulation of heat and phase-change heat accumulation medium can be selected, broaden the scope of work.
Accompanying drawing explanation
Fig. 1 is the structure chart of a kind of single tank regenerative apparatus with phase-transition heat-storage described in the utility model first embodiment;
Fig. 2 is the heat-accumulating process high/low temperature heat storage medium flow direction figure of the utility model first embodiment;
Fig. 3 is the heat release process high/low temperature heat storage medium flow direction figure of the utility model first embodiment;
Fig. 4 is the top view of a kind of single tank regenerative apparatus with phase-transition heat-storage described in the utility model first embodiment;
Fig. 5 is the structure chart of a kind of single tank regenerative apparatus with phase-transition heat-storage described in the utility model second embodiment;
Fig. 6 is the structure chart of a kind of single tank regenerative apparatus with phase-transition heat-storage described in the utility model the 3rd embodiment;
Fig. 7 is the structure chart of a kind of single tank regenerative apparatus with phase-transition heat-storage described in the utility model the 4th embodiment;
Fig. 8 is the structure chart of a kind of single tank regenerative apparatus with phase-transition heat-storage described in the utility model the 5th embodiment;
Fig. 9 is the structure chart of a kind of single tank regenerative apparatus with phase-transition heat-storage described in the utility model the 6th embodiment.
In figure,
1, heat storage medium entrance; 2, single tank storage heater; 3, heat release coil heat exchanger; 4, exothermic medium outlet; 5, energy utilization device; 6, exothermic medium entrance; 7, phase transition heat accumulation unit; 8, tube sheet; 9, thermal insulation board; 10, heat-storage plate heat exchange of heat pipe; 11, heat storage medium outlet; 12, heat transfer medium outlet; 13, the heat transfer medium inlet of solar thermal collector; 14, solar thermal collector; 15, the heat transfer medium outlet of solar thermal collector; 16, heat transfer medium inlet; 17, coil pipe electric heater; 18, electric heating equipment entrance; 19, power supply unit; 20, cylindrical electrically heated rod.
Detailed description of the invention
Embodiment 1, as Figure 1-4, a kind of single tank regenerative apparatus with phase-transition heat-storage described in the utility model first embodiment, comprising:
Single tank storage heater 2, the top of its outside is provided with heat storage medium entrance 1, and outside bottom is provided with heat storage medium outlet 11;
Thermal insulation board 9, it is inner that it is arranged in single tank storage heater 2, and coaxially arranged with single tank storage heater 2;
Phase transition heat accumulation unit 7, it is inner that it is arranged in thermal insulation board 9, and it is inner to be fixed on single tank storage heater 2 by tube sheet 8, fills phase-change heat accumulation medium in phase transition heat accumulation unit 7;
Heat release coil heat exchanger 3, it is arranged in the top, circular passage that thermal insulation board 9 is formed with single tank storage heater 2, and the outlet of heat release coil heat exchanger 3 exports 4 with the exothermic medium entrance 6 of energy utilization device 5 with exothermic medium respectively with entrance and is connected;
Heating plant, it is be arranged in the solar thermal collector 14 outside single tank storage heater 2;
Heat transfer unit (HTU), it is the heat-storage plate heat exchange of heat pipe 10 being arranged in single tank storage heater 2 inner bottom part;
The heat transfer medium outlet 12 of heat-storage plate heat exchange of heat pipe 10 is connected with the heat transfer medium outlet 15 of solar thermal collector 14 with the heat transfer medium inlet 13 of solar thermal collector 14 by tube connector respectively with the heat transfer medium inlet 16 of heat-storage plate heat exchange of heat pipe 10.
Wherein, heat transfer medium outlet 12, solar thermal collector 14, heat-storage plate heat exchange of heat pipe 10 and heat transfer medium inlet 16 form fluid Flow-induced vibration loop, form solar-heating device;
Exothermic medium entrance 6, heat release coil heat exchanger 3, energy utilization device 5 and exothermic medium outlet 4 forms fluid Flow-induced vibration loop, forms release device.
Augmentation of heat transfer fin can be arranged in the outside of heat release coil heat exchanger 3 and heat-storage plate heat exchange of heat pipe 10, also can not arrange.
Phase transition heat accumulation unit 7 is arranged in the inside of thermal insulation board 9 in the mode that pipe is arranged, and pipe row can become any angle with horizontal direction, and wherein, arrange phase change heat storage material in pipe comb, augmentation of heat transfer fin can be arranged in pipe comb outside, also can not arrange.Also can add the highly heat-conductive materials such as foam metal, nano material, phase transformation capsule material in the phase change heat storage material in pipe comb in phase transition heat accumulation unit 7.
Solar thermal collector 14 can be vacuum heat collection pipe, also can be light collecting heat collector, and light collecting heat collector comprises slot type, tower, butterfly and linear Fresnel formula heat collector.Heat storage medium in heat transfer medium in solar thermal collector 14 and single tank storage heater 2 can be all water, air, conduction oil, fuse salt, liquid metal or organic working medium, also can be different medium.
Fig. 2 is the flow direction of heat storage medium in single tank storage heater 2 in heat-accumulating process, and wherein, the solid the end of a thread of thick line is hot fluid flow direction, and fine rule hollow arrow is cold fluid flow direction.Fig. 3 is the flow direction of heat storage medium in single tank storage heater 2 in heat release process, and wherein, the solid the end of a thread of thick line is hot fluid flow direction, and fine rule hollow arrow is cold fluid flow direction.
The using method of a kind of single tank regenerative apparatus with phase-transition heat-storage described in the utility model first embodiment, comprising:
Heat-accumulating process: the heat-storage plate heat exchange of heat pipe 10 entering single tank storage heater 2 inner bottom part through heat transfer medium inlet 16 from the high-temperature heat-transfer medium of solar thermal collector 14 transfers heat to the heat storage medium in single tank storage heater 2, temperature reduces, heat transfer medium after cooling returns solar thermal collector 14 by heat transfer medium outlet 12, completes one and takes turns circulation; After heat storage medium absorbs heat from heat-storage plate heat exchange of heat pipe 10, temperature raises, heat storage medium after intensification flows through phase transition heat accumulation unit 7, transfer heat to the phase-change heat accumulation medium in pipe comb in phase transition heat accumulation unit 7, when the heat storage medium temperature in single tank storage heater 2 is greater than the phase-change heat accumulation medium fusing point in phase transition heat accumulation unit 7 in pipe comb, phase-change heat accumulation medium is melted, stored by latent heat of phase change, in single tank storage heater 2, heat storage medium temperature raises simultaneously.Now in tank, the flow direction of heat storage medium is as shown in Figure 2, under the effect of buoyancy lift, heat storage medium upwards flows, promote top cold fluid flows through heat release coil heat exchanger 3 place circular passage along the top of described single tank storage heater 2, promotion cold fluid annularly passage moves downward, the heat provided for heat-storage plate heat exchange of heat pipe 10 is provided in the bottom of single tank storage heater 2, until heat storage medium temperature raises in whole storage heater, completes heat-accumulating process.
Heat release process, cryogenic media from energy utilization device 5 enters heat release coil heat exchanger 3 by exothermic medium entrance 6, after absorbing heat from the heat storage medium in single tank storage heater 2, temperature raises, and the exothermic medium after intensification turns back to energy utilization device 5 from exothermic medium outlet 4 and completes heat release; In exothermic process, single tank storage heater 2 fluid flow inside direction as shown in Figure 3.Heat release coil heat exchanger 3 surrounding heat storage medium temperature reduces, heat storage medium after cooling flows downward along the annular space between thermal insulation board 9 and single tank storage heater 2 tank body, promote bottom hot fluid upwards to flow along phase transition heat accumulation unit 7, circular passage, heat release coil heat exchanger 3 place is flow through from single tank storage heater 2 top, when in single tank storage heater 2, heat storage medium temperature is reduced to the phase-change heat accumulation medium fusing point in phase-transition heat-storage pipe 7 in pipe comb, in phase transition heat accumulation unit 7, latent heat of phase change is released, in single tank storage heater 2, heat storage medium temperature declines further simultaneously, until the store heat in single tank storage heater 2 is completely released.
Fig. 4 is the top view of single tank storage heater 2 along the horizontal cross-section of a certain height, and middle hole is that heat storage medium flows through region.
Embodiment 2, as shown in Figure 5, a kind of single tank regenerative apparatus with phase-transition heat-storage described in the utility model second embodiment, similar to Example 1, difference is:
Heat transfer medium and heat storage medium are same medium, and the heat-storage plate heat exchange of heat pipe 10 of single tank storage heater 2 inner bottom part saves, and increases the size of phase transition heat accumulation unit 7 simultaneously, make it be covered with single tank storage heater 2.Eliminate heat transfer medium outlet 12 and heat transfer medium inlet 16, heat transfer medium from solar thermal collector 14 enters single tank storage heater 2 from heat storage medium entrance 1, promote cryogenic media in single tank storage heater 2 to move downward, flow out from bottom heat storage medium outlet 11, then enter solar thermal collector 14 and heat.
Embodiment 3, as shown in Figure 6, a kind of single tank regenerative apparatus with phase-transition heat-storage described in the utility model the 3rd embodiment, similar to Example 2, difference is:
Reduce the size of phase transition heat accumulation unit 7, and a coil pipe electric heater 17 is set at single tank storage heater 2 inner bottom part, simultaneously at single tank storage heater 2 outer increase power supply unit 19, coil pipe electric heater 17 is connected by electric heating equipment entrance 18 with power supply unit 19.During the solar energy deficiency that daytime is stored by solar thermal collector 14, can carry out electrical heating by coil pipe electric heater 17 in the evening, realizes heat-accumulating process.
Embodiment 4, as shown in Figure 7, a kind of single tank regenerative apparatus with phase-transition heat-storage described in the utility model the 4th embodiment, similar to Example 3, difference is:
Change coil pipe electric heater 17 into cylindrical electrically heated rod 20.
Embodiment 5, as shown in Figure 8, a kind of single tank regenerative apparatus with phase-transition heat-storage described in the utility model the 5th embodiment, similar to Example 3, difference is:
Eliminate solar thermal collector 14, realize heat-accumulating process separately through coil pipe electric heater 17.Power supply unit 19 can store electrical energy, and the electric energy of storage can be the rubbish electricity of could not get on to the Net from wind-power electricity generation, photovoltaic generation, also can be the trough-electricity in evening, to improve renewable energy utilization efficiency, can reach the object of electrical network peak load shifting simultaneously.
Embodiment 6, as shown in Figure 9, a kind of single tank regenerative apparatus with phase-transition heat-storage described in the utility model the 6th embodiment, similar to Example 5, difference is:
Change coil pipe electric heater 17 into cylindrical electrically heated rod 20.
The foregoing is only preferred embodiment of the present utility model, be not limited to the utility model, for a person skilled in the art, the utility model can have various modifications and variations.All within spirit of the present utility model and principle, any amendment done, equivalent replacement, improvement etc., all should be included within protection domain of the present utility model.
Claims (7)
1. the single tank regenerative apparatus with phase-transition heat-storage, is characterized in that, comprising:
Single tank storage heater (2), the top of its outside is provided with heat storage medium entrance (1), and outside bottom is provided with heat storage medium outlet (11);
Thermal insulation board (9), it is inner that it is arranged in described single tank storage heater (2), and coaxially arranged with described single tank storage heater (2);
Phase transition heat accumulation unit (7), it is inner that it is arranged in described thermal insulation board (9), and it is inner to be fixed on described single tank storage heater (2) by tube sheet (8), fills phase-change heat accumulation medium in described phase transition heat accumulation unit (7);
Heat release coil heat exchanger (3), it is arranged in the top, circular passage that described thermal insulation board (9) is formed with described single tank storage heater (2), and the outlet of described heat release coil heat exchanger (3) exports (4) with the exothermic medium entrance (6) of energy utilization device (5) with exothermic medium respectively with entrance and is connected;
Heating plant, it is arranged in described single tank storage heater (2) outward;
Heat transfer unit (HTU), it is arranged in described single tank storage heater (2) inner bottom part, and described heat transfer unit (HTU) is connected with described heating plant.
2. a kind of single tank regenerative apparatus with phase-transition heat-storage according to claim 1, is characterized in that, described heating plant is solar thermal collector (14) and/or power supply unit (19);
Described heat transfer unit (HTU) is heat-storage plate heat exchange of heat pipe (10) or coil pipe electric heater (17) or cylindrical electrically heated rod (20).
3. a kind of single tank regenerative apparatus with phase-transition heat-storage according to claim 2, it is characterized in that, the heat transfer medium outlet (12) of described heat-storage plate heat exchange of heat pipe (10) is connected with the heat transfer medium outlet (15) of solar thermal collector (14) with the heat transfer medium inlet (13) of solar thermal collector (14) by tube connector respectively with the heat transfer medium inlet (16) of described heat-storage plate heat exchange of heat pipe (10).
4. a kind of single tank regenerative apparatus with phase-transition heat-storage according to claim 2, it is characterized in that, the power import of described coil pipe electric heater (17) or described cylindrical electrically heated rod (20) exports (18) with the power supply of described power supply unit (19) and is connected.
5. a kind of single tank regenerative apparatus with phase-transition heat-storage according to claim 4, it is characterized in that, described heat storage medium entrance (1) and described heat storage medium are exported (11) and are connected with the heat transfer medium outlet (15) of solar thermal collector (14) and the heat transfer medium inlet (13) of solar thermal collector (14) respectively by tube connector.
6. a kind of single tank regenerative apparatus with phase-transition heat-storage according to claim 2, it is characterized in that, augmentation of heat transfer fin is arranged in the outside of described heat release coil heat exchanger (3) and described heat-storage plate heat exchange of heat pipe (10) and the middle pipe comb of phase transition heat accumulation unit (7).
7. a kind of single tank regenerative apparatus with phase-transition heat-storage according to claim 1, it is characterized in that, described phase transition heat accumulation unit (7) is arranged in the inside of described thermal insulation board (9) in the mode that pipe is arranged, and pipe row is from the horizontal by any angle.
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| CN201520322459.3U CN204678943U (en) | 2015-05-19 | 2015-05-19 | A kind of single tank regenerative apparatus with phase-transition heat-storage |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104833253A (en) * | 2015-05-19 | 2015-08-12 | 北京工业大学 | Single-tank heat storage device with phase change heat storage function and use method thereof |
| CN106014508A (en) * | 2016-07-12 | 2016-10-12 | 华北电力大学（保定） | Compressed air energy storage system |
| CN106885381A (en) * | 2017-03-23 | 2017-06-23 | 中国建筑股份有限公司 | A kind of solar energy hot hold over system |
| WO2021139122A1 (en) * | 2020-01-07 | 2021-07-15 | 南京工业大学 | Mobile phase-change heat and cold storage device |
-
2015
- 2015-05-19 CN CN201520322459.3U patent/CN204678943U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104833253A (en) * | 2015-05-19 | 2015-08-12 | 北京工业大学 | Single-tank heat storage device with phase change heat storage function and use method thereof |
| CN106014508A (en) * | 2016-07-12 | 2016-10-12 | 华北电力大学（保定） | Compressed air energy storage system |
| CN106885381A (en) * | 2017-03-23 | 2017-06-23 | 中国建筑股份有限公司 | A kind of solar energy hot hold over system |
| WO2021139122A1 (en) * | 2020-01-07 | 2021-07-15 | 南京工业大学 | Mobile phase-change heat and cold storage device |
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