CN105570973A - Inner wall thermal heating system utilizing solar energy - Google Patents

Inner wall thermal heating system utilizing solar energy Download PDF

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Publication number
CN105570973A
CN105570973A CN201610114254.5A CN201610114254A CN105570973A CN 105570973 A CN105570973 A CN 105570973A CN 201610114254 A CN201610114254 A CN 201610114254A CN 105570973 A CN105570973 A CN 105570973A
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CN
China
Prior art keywords
heat
change material
phase
wall
coil pipe
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Pending
Application number
CN201610114254.5A
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Chinese (zh)
Inventor
朱沁萱
韩如冰
唐中华
王晶
王睿
谭静
黄虹
卿玉涛
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Southwest University of Science and Technology
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Southwest University of Science and Technology
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Application filed by Southwest University of Science and Technology filed Critical Southwest University of Science and Technology
Priority to CN201610114254.5A priority Critical patent/CN105570973A/en
Publication of CN105570973A publication Critical patent/CN105570973A/en
Pending legal-status Critical Current

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
    • F24D15/00—Other domestic- or space-heating systems
    • F24D15/02—Other domestic- or space-heating systems consisting of self-contained heating units, e.g. storage heaters
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
    • F24D19/00—Details
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24S—SOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS
    • F24S60/00—Arrangements for storing heat collected by solar heat collectors
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
    • F24D2200/00—Heat sources or energy sources
    • F24D2200/14—Solar energy
    • 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

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Sustainable Energy (AREA)
  • Building Environments (AREA)
  • Central Heating Systems (AREA)

Abstract

An inner wall thermal heating system utilizing solar energy is characterized in that a solar energy heat collector 1 is connected with a coil pipe 4 through an insulation circulating pipe 2; the coil pipe 4 is embedded in a sizing phase-change material layer 7 on the inner side of a wall; the sizing phase-change material layer 7 is clamped between concrete layers 6 on the two sides; an inlet and an outlet of the coil pipe 4 in the wall are each provided with a check valve 3; the insulation circulating pipe 2 is provided with a pump 5. The solar energy heat collector 1 is a heat collection panel, the sizing phase-change material layer 7 is a paraffin sizing phase-change material layer, and the coil pipe 4 is coiled like an S.

Description

A kind of inner wall heat-storage heating system utilizing solar energy
Technical field
The present invention relates to a kind of solar heating system utilizing inner wall phase-change material to store heat release principle, belong to the innovation and creation of energy-saving field.
Background technology
China is an energy consumption big country, and the ratio that energy for building accounts for whole society's energy consumption is about 30%, and wherein heat supply heating is with accounting for 45%, is the major fields of building energy conservation.For reducing building energy consumption, throttling again of should increasing income.Therefore, China is just wideling popularize regenerative resource range of application under construction.Solar energy is never exhausted clean energy resource, is one of mankind's important energy source that can rely on for a long time, utilizes the energy-conservation and environmental benefit that solar thermal energy is very good for space heating heating can obtain, and is a kind of very good and energy saving means of necessity.
But solar energy is a kind of unstable thermal source, the impact of cloudy day, rain, snow weather can be subject to.Though the supply of solar energy amount on or be all in time change, thus only sunshine abundance fine day just can harvest a large amount of solar heat.And the energy consumption in life mainly concentrates on morning and evening, if the solar energy on daytime temporarily can be stored, be used when being necessary, not only can improve the utilization rate of the energy but also can the scope of application be expanded.
Therefore, applied solar energy thermal-arrest of the present invention, phase-change material accumulation of heat heat release principle, collect the solar heat on daytime and be stored in the phase-change material layers of wall within the walls, at night, outdoor temperature reduces, phase change material releases heat, by the mode of radiant heat transfer to indoor heat transfer, reach the object of heating.Heating load variation supplements when can arrange auxiliary thermal source lower than the occasion (or heat supply temperature require lower than user side occasion) of regenerative apparatus ability.For collecting efficiency and heat-collecting temperature, all easier decline than summer in winter.Therefore, sun heat utilization system generally adopts boiler or heat pump as auxiliary thermal source, and the present invention does not do claim to arranging auxiliary thermal source part.
The form of current solar heat-preservation system mainly contains five kinds: underground tank, soil pipe laying, cobble heap, heat storage water tank and phase-change material.Because first two heat storage type is all subject to the impact of local geology, the hydrology, edaphic condition, thus only in specific region and of certain scale with can time be suitable for.Three, the 4th kind of heat storage type all needs the regenerative apparatus of large volume, must be of certain scale by heat, and need ensure that this system is just applicable when having an abundant heat accumulation space.Accumulation of heat of the present invention adopts the phase-change material heat storage type being attached to inner wall to overcome above deficiency, has accumulation of heat space little, and system is simple, the features such as applied range.
Phase-change material accumulation of heat is applied to some extent in building energy conservation, and applying maximum is in the walling of passive solar house.The thermal storage density of phase change heat storage material is large, and when phase transformation, output temperature is more stable.According to the operating temperature of solar-heating heating system, select suitable phase-change material, the phase transition temperature of phase-change material and the operating temperature range of system are matched.Conventional phase-change material, such as, the fusing point of polyethylene glycol 20 ~ 25 DEG C, latent heat of fusion 146kJ/kg, density of solid 1100kg/m 3, solid-state specific heat capacity is 2260kJ/kg DEG C; The fusing point of ten phosphate dihydrate disodiums 36 DEG C, latent heat of fusion 280kJ/kg, density of solid 1520kg/m 3, solid-state specific heat capacity is 1690kJ/kg DEG C, and liquid specific heat holds 1940kJ/kg DEG C.
The present invention is directed to the resident of the cold district decentralized heating that solar energy enriches, design a set of inner wall heat-storage heating system utilizing solar energy.Utilize phase-change heat storage technology, the heat storage collected by solar thermal collector daytime is in wall phase change material, night, phase change material releases heat heated to the interior space, utilize the feature that can not produce flowing during sizing phase-change material phase transformation, overcome existing solar heat-preservation system phase-change material encapsulation leakage problem.It is simple that native system has structure, good stability, applied range, the feature of environmental protection.
There is the application of solar energy phase transition wall at present.Solar energy phase transition way is placed in the outside wall surface of exterior wall by phase-change material, and when shining upon body of wall, phase-transition heat-storage, when night, outdoor temperature was very low, phase-changing wall is to indoor and outdoors heat release all simultaneously, and indoor acquisition heat plays the effect of heating.It is dissipated heat that solar energy phase transition wall is discharged into outdoor heat, and invalid, therefore, the heat that solar energy phase transition wall is collected cannot maximum be heating service.In addition the drawback that this system is maximum to eliminate the impact of solar radiation on indoor summer, causes indoor temperature too high.But instant invention overcomes above shortcoming.First, utilize solar thermal collector thermal-arrest, farthest can absorb solar radiant energy, utilize body of wall rotating jet flow, vertical body of wall and solar radiation have in very large angle in a very long time, the thermal Finite that PCM wallboard obtains.Secondly, phase-change material is placed in inner wall, and ensure that phase-change material institute liberated heat almost all can arrive indoor, heat release utilization rate is apparently higher than PCM wallboard.Finally, this system can turn off the valve of turnover coil pipe when summer, heat is stoped to enter coil pipe, phase-change material now no longer cuts any ice, indoor thermal environment is not by the impact of this heating system, meanwhile, the heat that solar heat-collection plate is collected as life heat, can also completely eliminate the side effect that solar energy phase transition wall brought in summer.Therefore, the range of application of this solar heating system will be more wide.
Summary of the invention
The present invention relates to a kind of solar heating system utilizing phase-change material to store heat release principle, belong to the innovation and creation of energy-saving field.
Basic ideas of the present invention are: daytime, and solar thermal collector collects solar heat, transfers heat to circulation pipe Inner eycle working medium, and cycle fluid is heated and unevenly occurs density contrast, flows.In heat collector and the too large occasion of the heating room discrepancy in elevation, water pump is utilized to drive cycle fluid to realize circulation.The effect of cycle fluid is transmission heat.The heat that cycle fluid is carried is passed in the qualitative phase-change material layers in body of wall by coil pipe, phase change heat storage material continues heat absorption and occurs by the solid-state phase transition process to liquid state, synchronous accumulation of heat.Meanwhile, glycol water while heat storage material, also dispel the heat to indoor, indoor temperature raised, solve room heating on daytime problem.Afternoon or evening, when the water temperature in heat collector is lower than certain value, close stop valve on coil pipe, systemic circulation stops.When indoor temperature is lower than certain setting value, the sizing phase-change material in body of wall occurs liquid to solid-state phase transition process, synchronous heat release.Indoor obtain stable heat release, thus reach the object of heating at night.
The technical solution used in the present invention is: a kind of inner wall heat-storage heating system utilizing solar energy, it is characterized in that this system comprises: solar thermal collector is connected with coil pipe by heat preserving circle tube, coil pipe is embedded in the sizing phase-change material layer inside body of wall, sizing phase-change material layer is sandwiched in the concrete layer of both sides, coil pipe import and export place in body of wall is equipped with stop valve, and heat preserving circle tube is provided with pump.Meanwhile, solar thermal collector is flat heat collection plate, and sizing phase-change material is paraffin sizing phase-change material, and the tortuous mode of coil pipe is snakelike.
accompanying drawing illustrates:it is the inner wall heat-storage heating system figure utilizing solar energy that this description comprises following two width accompanying drawing: Fig. 1.Fig. 2 is phase-changing wall profile.In figure: 1, solar thermal collector, 2, heat preserving circle tube, 3, stop valve, 4, coil pipe, 5, pump, 6, concrete layer, 7, sizing phase-change material layer.
detailed description of the invention:
Below in conjunction with accompanying drawing, the present invention will be further described.As shown in the figure, a kind of inner wall heat-storage heating system utilizing solar energy, it is characterized in that this system comprises: solar thermal collector 1 is connected with coil pipe 4 by heat preserving circle tube 2, coil pipe 4 is embedded in the sizing phase-change material layer 7 inside body of wall, sizing phase-change material layer 7 is sandwiched in the concrete layer 6 of both sides, coil pipe 4 import and export place in body of wall is equipped with stop valve 3, heat preserving circle tube 2 is provided with pump 5.Solar thermal collector 1 is flat heat collection plate, and sizing phase-change material 6 is paraffin sizing phase-change material, and the tortuous mode of coil pipe 4 is snakelike.
On daytime, the heat of collection stores in the sizing phase-change material layer in indoor wall by solar thermal collector, along with the prolongation of solar thermal collector thermal-arrest process stores amount of heat gradually.At night, when the phase transition temperature of indoor temperature lower than phase-change material, latent heat of phase change released by phase-change material, makes indoor temperature keep uniform temperature level, reaches the object of heating.
Further scheme is: if this system is applied to the area not having supply of electric power, and solar electrical energy generation electrical storage device can be utilized to provide pump electricity consumption, or utilizes wind-power electricity generation electrical storage device to provide pump electricity consumption.
Further scheme is: if this system is applied to severe cold area, and cycle fluid uses anti-icing fluid, utilizes summer during the heat of this solar energy collecting and can need utilize through indirect heat exchange.

Claims (2)

1. one kind utilizes the inner wall heat-storage heating system of solar energy, it is characterized in that this system comprises: solar thermal collector (1) is connected with coil pipe (4) by heat preserving circle tube (2), coil pipe (4) is embedded in the sizing phase-change material layer (7) inside body of wall, sizing phase-change material layer (7) is sandwiched in the concrete layer (6) of both sides, coil pipe (4) import and export place in body of wall is equipped with stop valve (3), heat preserving circle tube (2) is provided with pump (5).
2. the inner wall heat-storage heating system utilizing solar energy according to claim 1, is characterized in that solar thermal collector (1) is flat heat collection plate, and sizing phase-change material (6) is paraffin sizing phase-change material, and the tortuous mode of coil pipe (4) is snakelike.
CN201610114254.5A 2016-03-01 2016-03-01 Inner wall thermal heating system utilizing solar energy Pending CN105570973A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201610114254.5A CN105570973A (en) 2016-03-01 2016-03-01 Inner wall thermal heating system utilizing solar energy

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Application Number Priority Date Filing Date Title
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Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106051901A (en) * 2016-06-03 2016-10-26 西南交通大学 Heating system
CN106284743A (en) * 2016-10-11 2017-01-04 温州大学 Phase transition heat preserving wall and deck
CN106803609A (en) * 2017-01-17 2017-06-06 宁波大学 A kind of new-energy automobile power battery cooling system
CN107355846A (en) * 2017-07-28 2017-11-17 天津大学 A kind of phase-transition heat-storage collection cast condensing radiant panel
CN109028264A (en) * 2018-07-11 2018-12-18 重庆大学 A kind of closed heating system
CN114086703A (en) * 2021-11-19 2022-02-25 深圳中航幕墙工程有限公司 Energy-saving and heat-insulating building curtain wall structure

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3996919A (en) * 1975-11-21 1976-12-14 Sun Oil Company Of Pennsylvania System for collecting and storing solar energy
CN103528124A (en) * 2013-11-08 2014-01-22 西南科技大学 Solar heat-storage heating system
CN104746647A (en) * 2015-02-04 2015-07-01 北京工业大学 Active and passive combined annual phase-change energy storage room capable of being used all year around
CN104895218A (en) * 2015-06-23 2015-09-09 河北工业大学 Renewable energy coupled energy storage and temperature regulation wall body system and using method thereof
CN105180464A (en) * 2015-08-24 2015-12-23 北京建筑大学 Phase change wall system capable of controlling storage and release of heat
CN205037414U (en) * 2015-10-13 2016-02-17 天津城建大学 Phase -change thermal type solar energy low temperature hot water radiation heating floor
CN205402901U (en) * 2016-03-01 2016-07-27 西南科技大学 Utilize wall inner wall heat accumulation heating system of solar energy

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3996919A (en) * 1975-11-21 1976-12-14 Sun Oil Company Of Pennsylvania System for collecting and storing solar energy
CN103528124A (en) * 2013-11-08 2014-01-22 西南科技大学 Solar heat-storage heating system
CN104746647A (en) * 2015-02-04 2015-07-01 北京工业大学 Active and passive combined annual phase-change energy storage room capable of being used all year around
CN104895218A (en) * 2015-06-23 2015-09-09 河北工业大学 Renewable energy coupled energy storage and temperature regulation wall body system and using method thereof
CN105180464A (en) * 2015-08-24 2015-12-23 北京建筑大学 Phase change wall system capable of controlling storage and release of heat
CN205037414U (en) * 2015-10-13 2016-02-17 天津城建大学 Phase -change thermal type solar energy low temperature hot water radiation heating floor
CN205402901U (en) * 2016-03-01 2016-07-27 西南科技大学 Utilize wall inner wall heat accumulation heating system of solar energy

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106051901A (en) * 2016-06-03 2016-10-26 西南交通大学 Heating system
CN106284743A (en) * 2016-10-11 2017-01-04 温州大学 Phase transition heat preserving wall and deck
CN106803609A (en) * 2017-01-17 2017-06-06 宁波大学 A kind of new-energy automobile power battery cooling system
CN107355846A (en) * 2017-07-28 2017-11-17 天津大学 A kind of phase-transition heat-storage collection cast condensing radiant panel
CN109028264A (en) * 2018-07-11 2018-12-18 重庆大学 A kind of closed heating system
CN114086703A (en) * 2021-11-19 2022-02-25 深圳中航幕墙工程有限公司 Energy-saving and heat-insulating building curtain wall structure

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Application publication date: 20160511

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