CN203024632U - Combined type phase-change material heat storing and heat transferring unit pipe - Google Patents

Combined type phase-change material heat storing and heat transferring unit pipe Download PDF

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Publication number
CN203024632U
CN203024632U CN2012207317682U CN201220731768U CN203024632U CN 203024632 U CN203024632 U CN 203024632U CN 2012207317682 U CN2012207317682 U CN 2012207317682U CN 201220731768 U CN201220731768 U CN 201220731768U CN 203024632 U CN203024632 U CN 203024632U
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China
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phase
heat
storing
change material
change
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Expired - Fee Related
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CN2012207317682U
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Chinese (zh)
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崔海亭
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Hebei University of Science and Technology
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Hebei University of Science and Technology
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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
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/14—Thermal energy storage
    • 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
    • Y02E70/00—Other energy conversion or management systems reducing GHG emissions
    • Y02E70/30—Systems combining energy storage with energy generation of non-fossil origin

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  • Heat-Pump Type And Storage Water Heaters (AREA)
  • Engine Equipment That Uses Special Cycles (AREA)

Abstract

The utility model discloses a combined type phase-change material heat storing and heat transferring unit pipe. The unit pipe is provided with a center pipe, and 24 heat storing heat transfer unit pipes which are separated annular containers are arranged on the center pipe in a welding and sleeving manner, and phase-change materials are filled in the separated annular containers; eight annular containers of the 24 heat storing and heat transferring units serve as a section, each section is made of the phase-change materials with the same melting points, the phase-change materials are successively a NaF-60KF, 80.5LiF-19.5CaF2, and KF-15CaF2, and the phase-transition temperatures of the thermal storage phase-change materials in the heat storing and heat transferring unit pipes can be selected according to the different solar radiation heat currents, and all the heat storage materials are simultaneously melted; and the phase-change materials with three phase-transition temperatures are utilized to replace the phase-change material with the signal phase-transition temperature, a temperature changing combined phase-change energy storing system is formed, the heat storing speed and the heat discharging speed are accelerated, and the efficiency of a system is improved.

Description

A kind of Multiple phase change materials regenerative heat exchange unit pipes
Technical field
The utility model relates to a kind of energy storage and releasing device, relates in particular to a kind of Multiple phase change materials regenerative heat exchange unit pipes.
Background technology
Space station solar thermal power electricity generation system is utilized the amplitude transformer intercepting solar energy of parabolic type, and it is gathered in the cylindrical cavity of heat absorption/storage heater, be absorbed energy transform into heat energy, wherein a part of thermal energy transfer to cycle fluid to drive thermo-mechanical power generation, another part heat is encapsulated in a plurality of toroidal containers in the regenerative heat exchange unit pipes, and the phase change heat storage material in toroidal container absorbs by fusing and stores.In the track shade phase, phase change heat storage material solidifies heat release near transformation temperature, serves as the heat engine thermal source and comes heat cycles working medium, and making the space station be in shade still can the continuous operation generating during phase.
In existing heat absorption/storage heater structure, 23 regenerative heat exchange unit pipes are parallel is evenly distributed on cylindrical heat-absorbing chamber inwall, is sleeved on outside regenerative heat exchange unit pipes pipe by 24 heat storage container element solder.Thermal storage unit is the toroidal container that separates one by one, and inside fills the single phase-change material that fusing point is the 80.5LiF-19.5CaF2 of 1042K.
In the difference of axis direction outer wall sun incident hot-fluid and the difference of inwall Temperature of Working, cause the melting rate of each thermal storage unit that a great difference is arranged due to the regenerative heat exchange unit pipes, very little in the phase change heat storage material melting rate variation of inner capacitance divider of orbital period.Caused like this waste of latent-heat storage ability, increased mass of system, also caused the sender property outlet temperature than great fluctuation process.
Summary of the invention
The utility model provides a kind of Multiple phase change materials regenerative heat exchange unit pipes of simple in structure, easy to process, function admirable.For this reason, the technical solution adopted in the utility model is as follows:
The utility model mainly comprises central tube, and on central tube, welding is set with 24 regenerative heat exchange unit, the toroidal container of described regenerative heat exchange unit for separating, and toroidal container inside is filled with phase-change material.In described 24 thermal storage units from the left side to the right side every 8 toroidal containers be one section, every section phase-change material that adopts identical fusing point, phase-change material is followed successively by NaF-60KF, 80.5LiF-19.5CaF 2, KF-15CaF 2
The utlity model has compact conformation, the characteristics that easy to process, heat transfer efficiency is high, in the regenerative heat exchange unit pipes, the phase transition temperature of heat accumulating phase change material is to choose according to the difference of solar radiation hot-fluid, can guarantee that all heat-storing materials melt simultaneously, utilize the phase-change material of the phase-change material replacement single-phase temperature of 3 kinds of phase transition temperatures, thereby form the phase-change accumulation energy system of alternating temperature combination, can not only accelerate energy storage, exoergic speed, and efficiency of utilization improves obviously.This has the space solar hold over system of strict demand significant for heat accumulation or heat release time.With the phase-change material heat exchange unit pipe analysis contrast of single-phase temperature, adopt syllogic combined phasetransform heat-storing material heat exchange unit pipe that the hot property of heat dump is had clear improvement, improved shade phase sender property outlet temperature, be conducive to improve the efficient of system; Reduce the maximum temperature of working medium, be conducive to improve the reliability of heat exchange unit pipe; Reduce the fluctuation of heat dump outlet temperature, improved the utilization rate of phase change heat storage material latent heat, be conducive to reduce mass of system.
Description of drawings
Fig. 1 is the cylindrical structural schematic diagram of heat absorption/storage heater of the present utility model.
Fig. 2 is the structural representation of a kind of Multiple phase change materials regenerative heat exchange of the utility model unit pipes.
In figure, 1-Multiple phase change materials regenerative heat exchange unit pipes, 2-working medium fluid intake pipe, 3-working medium fluid outlet pipe, 4-entrance ring main, 5-exports ring main, the circular cylindrical cavity of 6-heat absorption/storage heater, 7 – regenerative heat exchange unit pipes first paragraphs, 8-regenerative heat exchange unit pipes second segment, the 3rd section of 9-regenerative heat exchange unit pipes.
The specific embodiment
In order to understand better the utility model, below in conjunction with accompanying drawing, the utility model is done to describe further.As shown in Figure 1, its structure comprises circular cylindrical cavity 6, regenerative heat exchange unit pipes 1, working medium fluid intake pipe 2, working medium fluid outlet pipe 3, entrance ring main 4 and outlet ring main 5.As shown in Figure 2, holding phase-change material in the regenerative heat exchange unit pipes in first paragraph 7 in toroidal container is that to hold phase-change material in toroidal container in NaF-60KF, second segment 8 be 80.5LiF-19.5CaF 2, to hold phase-change material in toroidal container in the 3rd section 9 be KF-15CaF 2
When heat absorption/storage heater is worked, sunshine period, enter the interior Solar heat flow radiation part thermal energy transfer of heat absorption/storage heater cavity 6 to cycle fluid, cycle fluid flows into entrance ring main 4 through working medium fluid intake pipe 2 and is assigned to each regenerative heat exchange unit pipes 1, after the cycle fluid temperature improves, be pooled to outlet ring main 5, flow into turbine expansion acting through working medium fluid outlet pipe 3, to drive thermo-mechanical power generation; The toroidal container outer surface of another part heat energy heating regenerative heat exchange unit pipes 1 makes the phase change heat storage material fusing in it, and the phase change heat storage material heat absorption in toroidal container is liquid with thermal energy storage by Solid State Transformation.In the track shade phase, phase change heat storage material solidifies heat release near transformation temperature, serves as the heat engine thermal source and comes heat cycles working medium, and making the space station be in shade still can the continuous operation generating during phase.

Claims (2)

1. a Multiple phase change materials regenerative heat exchange unit pipes, is characterized in that, it has central tube, and on central tube, welding is set with 24 regenerative heat exchange unit, the toroidal container of described regenerative heat exchange unit for separating, and toroidal container inside is filled with phase-change material.
2. according to a kind of Multiple phase change materials regenerative heat exchange unit pipes claimed in claim 1, it is characterized in that, in described 24 thermal storage units from the left side to the right side every 8 toroidal containers be one section, every section phase-change material that adopts identical fusing point, phase-change material is followed successively by NaF-60KF, 80.5LiF-19.5CaF 2, KF-15CaF 2
CN2012207317682U 2012-12-27 2012-12-27 Combined type phase-change material heat storing and heat transferring unit pipe Expired - Fee Related CN203024632U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2012207317682U CN203024632U (en) 2012-12-27 2012-12-27 Combined type phase-change material heat storing and heat transferring unit pipe

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2012207317682U CN203024632U (en) 2012-12-27 2012-12-27 Combined type phase-change material heat storing and heat transferring unit pipe

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CN203024632U true CN203024632U (en) 2013-06-26

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104713398A (en) * 2013-12-17 2015-06-17 昆山巨仲电子有限公司 Energy storage module and energy storage element thereof
TWI561775B (en) * 2013-12-18 2016-12-11 Kunshan Jue Chung Electronics Co Ltd Energy storing assembly and energy storing unit thereof
CN106247837A (en) * 2016-09-26 2016-12-21 苏州科技大学 A kind of bucket shape phase-transition heat-storage component
TWI572832B (en) * 2014-11-10 2017-03-01 昆山巨仲電子有限公司 Energy storage tank with function of fixing energy storage unit
CN108151568A (en) * 2017-11-21 2018-06-12 浙江大学 A kind of combined type phase change heat accumulator

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104713398A (en) * 2013-12-17 2015-06-17 昆山巨仲电子有限公司 Energy storage module and energy storage element thereof
TWI561775B (en) * 2013-12-18 2016-12-11 Kunshan Jue Chung Electronics Co Ltd Energy storing assembly and energy storing unit thereof
TWI572832B (en) * 2014-11-10 2017-03-01 昆山巨仲電子有限公司 Energy storage tank with function of fixing energy storage unit
CN106247837A (en) * 2016-09-26 2016-12-21 苏州科技大学 A kind of bucket shape phase-transition heat-storage component
CN108151568A (en) * 2017-11-21 2018-06-12 浙江大学 A kind of combined type phase change heat accumulator
CN108151568B (en) * 2017-11-21 2019-11-26 浙江大学 A kind of combined type phase change heat accumulator

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C17 Cessation of patent right
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Granted publication date: 20130626

Termination date: 20131227