CN105569213A - Solar phase change heat storage wall and ventilation system provided with same - Google Patents
Solar phase change heat storage wall and ventilation system provided with same Download PDFInfo
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- CN105569213A CN105569213A CN201511025153.2A CN201511025153A CN105569213A CN 105569213 A CN105569213 A CN 105569213A CN 201511025153 A CN201511025153 A CN 201511025153A CN 105569213 A CN105569213 A CN 105569213A
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- 238000005338 heat storage Methods 0.000 title claims abstract description 113
- 238000009423 ventilation Methods 0.000 title claims abstract description 70
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 100
- 239000011521 glass Substances 0.000 claims abstract description 28
- 239000012071 phase Substances 0.000 claims description 90
- 239000012782 phase change material Substances 0.000 claims description 24
- 239000000463 material Substances 0.000 claims description 17
- 230000007704 transition Effects 0.000 claims description 12
- 239000012074 organic phase Substances 0.000 claims description 5
- 239000011248 coating agent Substances 0.000 claims description 4
- 238000000576 coating method Methods 0.000 claims description 4
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 3
- 229910052802 copper Inorganic materials 0.000 claims description 3
- 239000010949 copper Substances 0.000 claims description 3
- 239000011464 hollow brick Substances 0.000 claims description 3
- 238000010438 heat treatment Methods 0.000 abstract description 14
- 238000005265 energy consumption Methods 0.000 abstract description 8
- 230000000694 effects Effects 0.000 abstract description 6
- 238000001816 cooling Methods 0.000 abstract description 4
- 230000005855 radiation Effects 0.000 description 10
- 230000009466 transformation Effects 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 239000003094 microcapsule Substances 0.000 description 4
- 238000005728 strengthening Methods 0.000 description 4
- 238000004134 energy conservation Methods 0.000 description 3
- 230000000704 physical effect Effects 0.000 description 3
- 230000001172 regenerating effect Effects 0.000 description 3
- 238000009825 accumulation Methods 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 238000007731 hot pressing Methods 0.000 description 2
- 230000006698 induction Effects 0.000 description 2
- 238000011160 research Methods 0.000 description 2
- 241000628997 Flos Species 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000001680 brushing effect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 230000020169 heat generation Effects 0.000 description 1
- 238000013021 overheating Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 230000001932 seasonal effect Effects 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
Classifications
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B2/00—Walls, e.g. partitions, for buildings; Wall construction with regard to insulation; Connections specially adapted to walls
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/62—Insulation or other protection; Elements or use of specified material therefor
- E04B1/74—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F7/00—Ventilation
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- 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
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/62—Insulation or other protection; Elements or use of specified material therefor
- E04B1/74—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls
- E04B2001/742—Use of special materials; Materials having special structures or shape
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F7/00—Ventilation
- F24F2007/0025—Ventilation using vent ports in a wall
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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 invention provides a solar phase change heat storage wall and a ventilation system provided with the same. The solar phase change heat storage wall is formed by connecting a high-temperature phase change layer, a medium-temperature phase change layer and a low-temperature phase change layer sequentially, wherein the phase change temperatures of the high-temperature phase change layer, the medium-temperature phase change layer and the low-temperature phase change layer are set from high to low. A glass cover plate is arranged on the south side of the outer wall of the ventilation system; the rest part of the ventilation system is composed of an enclosure structure; an outdoor air inlet is formed in the upper part of the north side of the outer wall; and an outdoor air outlet is formed in the upper part of the south side. The solar phase change heat storage wall is positioned in the outer wall and close to the glass cover plate; the high-temperature phase change layer faces south; and an upper vent hole and a lower vent hole are formed in the upper part and lower part of the solar phase change heat storage wall respectively. A hot water system penetrates through the solar phase change heat storage wall to perform heat exchange. The solar phase change heat storage wall can overcome shortcomings of a conventional heat collection wall, has the advantages of good heat storage capability, diversified functions, simplicity for operation and no energy consumption, can achieve the effects of cooling by ventilation and domestic water heating in summer, and can be used for providing heat in winter, thereby having good application prospects.
Description
Technical field
The present invention relates to a kind of solar energy utilization system, be specifically related to a kind of solar energy phase-change heat storage wall and the ventilation system with solar energy phase-change heat storage wall.
Background technology
Prediction industrial research institute " 2013-2017 China's intelligent building industry market prospect and investment strategy planning application are reported " data show, and China's building energy consumption proportion in energy wastage in bulk or weight rises to 27.45%.The energy consumption of HVAC and hot water system accounts for again more than 60% of building total energy consumption, and building energy conservation reduces discharging has become the problem needing solution badly.China is populous, and Habitation form is various, although Development of Urbanization is rapid, still there is in vast rural area and region, ground, urban family's separate house that a large amount of structure is relatively simple, energy consumption level is high.The energy-saving and emission-reduction measure of separate house is still a problem being worth research.
Within 2006, country has promulgated " People's Republic of China's Renewable Energy Law ", advocates the utilization of regenerative resource, increases energy resource supply, realizes the sustainable development of economic society.Regenerative resource comprises solar energy, wind energy, water energy, tide energy etc.In view of unstability and the regional disparity of the regenerative resources such as wind energy, water energy, be difficult to effectively utilize and promote in building energy conservation, and distribution of solar energy is extensive, aboundresources, but utilize form still more single, the form that utilizes in separate house provides hot water based on solar energy collector.Along with the continuous combination of architecture-integral technology and solar utilization technique, have reason to believe that solar energy is played an important role in the building energy conservation in future.
Phase-change material (PCM-PhaseChangeMaterial) refers to and varies with temperature and change the material that physical property also can provide latent heat.The process changing physical property is called phase transition process, and at this moment phase-change material will absorb or discharge a large amount of latent heat.This material, once be widely used in human lives, will become the best environmental protection carrier of energy-conserving and environment-protective, be classified as national research and development utilize sequence in China.Its heat storage capacity is large, and thermal inertia is strong, is applied in building structure, can stablizes interior temperature as constructional materials, improves indoor thermal comfort.Meanwhile, phase-change material huge number, physical property is also had nothing in common with each other, and can carry out the selection of phase-change material according to the operating characteristic in a certain house.
Indoor natural ventilating still leans on the effect of hot pressing and blast, and generally hot pressing is less with pressure blast, the effective ventilation of indoor very difficult formation.Without the separate house of central heating, wall form is simple, and constructional materials heat storage capacity is poor, can not make full use of the solar radiation heating indoor air on daytime in winter, needs winter the extra energy that consumes to heat.The appearance of Trombe wall (thermal-arrest wall) is the breakthrough of zero energy consumption strengthening indoor natural ventilating and heat supply in winter, it is made up of heavy body of wall and glass cover-plate separated by a distance, form air duct therebetween, regulated the performance of thermal-arrest wall by the keying of Various Seasonal to different ventilation opening.But traditional thermal-arrest wall, heat storage capacity is weak, function singleness, can only be used for heating or aeration-cooling, and easily occurs over-heating in summer, the larger situation of diurnal temperature fluctuations in winter.
Application number be 201310062987.5 Chinese patent disclose a kind of building nature ventilation system of Non-energy-consumption, this system adopts Trombe wall technology, and wind induction type rotary rowed blast cap is set at air duct top, wind induction type is set at air intake and rotates air intake cap, strengthening indoor natural ventilating.But its thermal-arrest body of wall is common wall, and heat storage capacity is limited, function singleness.And be difficult to application in the winter time under operating mode, can not accomplish the self-loopa heating of indoor air flow, heating effect is poor, even reduces interior temperature.
Summary of the invention
The object of the present invention is to provide a kind of solar energy phase-change heat storage wall and the ventilation system with solar energy phase-change heat storage wall, its diverse in function, simple to operate, do not consume the energy, the shortcoming of traditional Trombe wall (thermal-arrest wall) can be overcome.
For achieving the above object, the present invention by the following technical solutions:
A kind of solar energy phase-change heat storage wall, this solar energy phase-change heat storage wall connects and composes successively by being filled with the high-temperature-phase change layer of phase-change material, middle temperature phase change layer and low-temperature phase change layer, and the phase transition temperature of the phase-change material of filling in high-temperature-phase change layer, middle temperature phase change layer and low-temperature phase change layer reduces successively.
The outside of described high-temperature-phase change layer is provided with the outer thermal-insulated blind that can be elevated, and the outside of low-temperature phase change layer is provided with the interior thermal-insulated blind that can be elevated.
The external surface of described high-temperature-phase change layer scribbles heat absorbing coating.
In described high-temperature-phase change layer, middle temperature phase change layer and low-temperature phase change layer, the phase-change material of filling is inorganic phase-changing material or organic phase change material, and the phase transition temperature of the phase-change material of filling in high-temperature-phase change layer is 38 ~ 42 DEG C, the phase transition temperature of the interior phase-change material of filling of middle temperature phase change layer is 28 ~ 32 DEG C, the phase transition temperature of the interior phase-change material of filling of low-temperature phase change layer is 18 ~ 22 DEG C.
The exterior wall of this ventilation system is made up of space enclosing structure and glass cover-plate, and wherein the east of exterior wall, west, north, upper and lower side are all made up of space enclosing structure, and the southern side of exterior wall is made up of glass cover-plate; And the top of the space enclosing structure of north side is provided with outdoor air intake, the top of glass cover-plate is provided with outdoor air outlet; Be provided with solar energy phase-change heat storage wall and hot water system within the walls outward, wherein solar energy phase-change heat storage wall is arranged near glass cover-plate, and the high-temperature-phase change layer of solar energy phase-change heat storage wall is towards south, air duct is left between solar energy phase-change heat storage wall and glass cover-plate, be provided with ventilation opening between solar energy phase-change heat storage wall and the space enclosing structure of upside, between solar energy phase-change heat storage wall and the space enclosing structure of downside, be provided with lower ventilation opening; Outdoor air intake, outdoor air outlet, upper ventilation opening and lower ventilation opening are equipped with the verge board that can open and close; Hot water system carries out heat exchange through the low-temperature phase change layer of solar energy phase-change heat storage wall.
Described hot water system is made up of water tank, water knockout drum, water collector, outlet valve and some thermal-arrest water pipes, wherein water tank is arranged on the top of the space enclosing structure of upside and is connected with water knockout drum, the two ends of every root thermal-arrest water pipe are connected with water collector with water knockout drum respectively, all vertical the burying of all thermal-arrest water pipes is overlying in the low-temperature phase change layer of solar energy phase-change heat storage wall, water knockout drum and burying of water collector level are overlying in the low-temperature phase change layer of solar energy phase-change heat storage wall, and outlet valve is positioned at the outside of solar energy phase-change heat storage wall and is connected with water collector.
The material of described water knockout drum, thermal-arrest water pipe and water collector is copper.
Described space enclosing structure is hollow brick wall.
Described glass cover-plate is double layer glass.
Compared with prior art, beneficial effect of the present invention is:
Solar energy phase-change heat storage wall provided by the invention, wherein be provided with the phase change layer of three grades of different phase transition temperatures, and when building and use, the state that the phase transition temperature being set to phase change layer from south to north reduces successively, like this when heat accumulation, absorb solar radiation by the high-temperature-phase change layer in most southern side, and conduct heat to middle temperature phase change layer and low-temperature phase change layer gradually, the amount of stored heat of this heat accumulation wall can be improved; And in exothermic process, heated interior temperature by low-temperature phase change layer, and heat the cold water in hot water system, the heat in middle temperature phase change layer and high-temperature-phase change layer supplements successively in low-temperature phase change layer, can Exotherm Time be extended, and overcome the unstability of solar energy.
Further, solar energy phase-change heat storage wall provided by the invention, at the external surface brushing heat absorbing coating of high-temperature-phase change layer, can strengthen its absorbing solar energy.And at the liftable outer thermal-insulated blind of the arranged outside of high-temperature-phase change layer, when putting down outer thermal-insulated blind and sheltering from high-temperature-phase change layer, can stop that high-temperature-phase change layer absorbs solar radiation, and the environment heat release to external world of high-temperature-phase change layer can be stopped.Simultaneously at the liftable interior thermal-insulated blind of the arranged outside of low-temperature phase change layer, when putting down interior thermal-insulated blind and sheltering from low-temperature phase change layer, the environment heat release to external world of low-temperature phase change layer can be stopped.
Ventilation system with solar energy phase-change heat storage wall provided by the invention, can overcome the shortcoming of traditional Trombe wall (thermal-arrest wall), and its heat storage capacity is strong, and diverse in function is simple to operate, and does not consume the energy.Can play aeration-cooling in summer and heat the effect of living water use, can be used for heating in the winter time, overcoming the problem that traditional solar energy heating ventilation system is difficult under operating mode apply in the winter time.Ventilation system with solar energy phase-change heat storage wall provided by the invention, when summer, solar energy phase-change heat storage wall is utilized daytime to absorb solar radiation, strengthening indoor natural ventilating and heating living water use, utilize the heat that solar energy phase-change heat storage wall is saved night, strengthening indoor natural ventilating and heating living water use can be continued, therefore, it is possible to improve air quality and reduce building energy consumption; Time in the winter time, solar energy phase-change heat storage wall is utilized daytime to absorb solar radiation, indoor air flow self-loopa is heated, heat to indoor, heating effect is good, utilizes the heat that solar energy phase-change heat storage wall is saved night, can continue indoor air flow self-loopa is heated, heat to indoor, heating effect is good, therefore, it is possible to reduce indoor heat load.So the ventilation system with solar energy phase-change heat storage wall provided by the invention can effectively overcome traditional solar collecting wall function singleness, summer day overheated with cross cold and that diurnal temperature fluctuations is larger problem night in winter, have a good application prospect.
Accompanying drawing explanation
Fig. 1 is the structural representation of the ventilation system with solar energy phase-change heat storage wall provided by the invention.
Fig. 2 is the structural representation with hot water system in the ventilation system of solar energy phase-change heat storage wall provided by the invention.
Fig. 3 is the schematic diagram of the pattern that works by day in winter of the ventilation system with solar energy phase-change heat storage wall provided by the invention.
Fig. 4 is the schematic diagram of pattern of working at night in winter of the ventilation system with solar energy phase-change heat storage wall provided by the invention.
Fig. 5 is the schematic diagram of the summer day mode of operation of the ventilation system with solar energy phase-change heat storage wall provided by the invention.
Fig. 6 is the schematic diagram of pattern of working at night in summer of the ventilation system with solar energy phase-change heat storage wall provided by the invention.
Wherein: 1 be water tank, 2 be upper ventilation opening, 3 be outdoor air outlet, 4 be water knockout drum, 5 be glass cover-plate, 6 be outer thermal-insulated blind, 7 be air duct, 8 be water collector, 9 be lower ventilation opening, 10 be high-temperature-phase change layer, 11 be middle temperature phase change layer, 12 be thermal-arrest water pipe, 13 be low-temperature phase change layer, 14 be interior thermal-insulated blind, 15 be outlet valve, 16 be outdoor air intake, 17 for space enclosing structure.
Detailed description of the invention
Below in conjunction with accompanying drawing, the present invention is described in further details.
The total design of the present invention is: based on trombe wall principle, the solar energy phase-change heat storage wall with multi-level phase change point is adopted to substitute traditional heavy body of wall, wall performance is promoted, a kind of solar energy phase-change heat storage wall provided by the invention and function utilizing solar energy to strengthen indoor natural ventilating cooling, heat supply in winter summer can be reached with the ventilation system of solar energy phase-change heat storage wall while enriching thermal-arrest wall function.In order to describe technology contents of the present invention and structure and object in detail, be specifically introduced below in conjunction with accompanying drawing.
As shown in Figure 1, solar energy phase-change heat storage wall provided by the invention, connected and composed according to this by phase transition temperature high-temperature-phase change layer 10 from high to low, middle temperature phase change layer 11 and low-temperature phase change layer 13, and be provided with mobilizable outer thermal-insulated blind 6 in the outside of high-temperature-phase change layer 10, be provided with mobilizable interior thermal-insulated blind 14 in the outside of low-temperature phase change layer 13.Wherein the external surface of high-temperature-phase change layer 10 scribbles the heat absorbing coating of black, and inner filling phase-change microcapsule, phase-change material can be inorganic phase-changing material, organic phase change material, transformation temperature about 40 DEG C.Phase-change microcapsule is filled in middle temperature phase change layer 11 inside, and phase-change material can be inorganic phase-changing material, organic phase change material, phase transformation temperature points about 30 DEG C.Phase-change microcapsule is filled in low-temperature phase change layer 13 inside, and phase-change material can be inorganic phase-changing material, organic phase change material, transformation temperature about 20 DEG C.
When building in house and use this solar energy phase-change heat storage wall, make high-temperature-phase change layer 10 towards south, low-temperature phase change layer 13 is exposed to the north, and arranges ventilation opening 2 on the top of this solar energy phase-change heat storage wall, and bottom arranges lower ventilation opening 9.
As seen from Figure 1, Figure 2, the ventilation system with solar energy phase-change heat storage wall provided by the invention, it is specifically configured to: be made up of space enclosing structure 17, glass cover-plate 5, solar energy phase-change heat storage wall, hot water system and ventilation opening.The exterior wall of this ventilation system is made up of space enclosing structure 17 and glass cover-plate 5, and wherein space enclosing structure 17 is hollow brick wall, and glass cover-plate 5 is double layer glass.The east of exterior wall, west, north, upper and lower side are all made up of space enclosing structure 17, and the southern side of exterior wall is made up of glass cover-plate 5.Be provided with solar energy phase-change heat storage wall and hot water system within the walls outward, and exterior wall offers ventilation opening.Ventilation opening comprises ventilation opening 2, lower ventilation opening 9, outdoor air intake 16 and outdoor floss hole 3, and outdoor air intake 16, outdoor air outlet 3, upper ventilation opening 2 and lower ventilation opening 9 are equipped with the verge board that can open and close.Concrete, the top of north side space enclosing structure 17 is provided with outdoor air intake 16, and the top of southern side glass cover-plate 5 is provided with outdoor air outlet 3.Solar energy phase-change heat storage wall is arranged near glass cover-plate 5, and high-temperature-phase change layer 10 is towards south, leaves air duct 7 between solar energy phase-change heat storage wall and glass cover-plate 5.Be provided with ventilation opening 2 between the space enclosing structure 17 of solar energy phase-change heat storage wall and upside, between the space enclosing structure 17 of solar energy phase-change heat storage wall and downside, be provided with lower ventilation opening 9.Hot water system is connected to form successively by water tank 1, water knockout drum 4, thermal-arrest water pipe 12, water collector 8, outlet valve 15.Hot water system is that reversed return type is arranged, comprising some thermal-arrest water pipes 12, the two ends of every root thermal-arrest water pipe 12 are connected with water collector 8 with water knockout drum 4 respectively.Vertical the burying of thermal-arrest water pipe 12 is overlying in the low-temperature phase change layer 13 of solar energy phase-change heat storage wall, water knockout drum 4 and burying of water collector 8 level are overlying in the low-temperature phase change layer 13 of solar energy phase-change heat storage wall, water knockout drum 4, water collector 8 and thermal-arrest water pipe 12 and the phase-change microcapsule close contact in low-temperature phase change layer 13.Water tank 1 is arranged on the top of the space enclosing structure 17 of upside, and is connected with water knockout drum 4 by pipeline.Outlet valve 15 is positioned at the outside of solar energy phase-change heat storage wall, and is connected with water collector 8 by pipeline.The material of water knockout drum 4, thermal-arrest water pipe 12, water collector 8 is high thermal conductivity copper.
As shown in Figure 2, the workflow of hot water system is: be that water tank 1 injects a certain amount of cold water by domestic running water system, water flows into water knockout drum 4 under gravity, flow in each thermal-arrest water pipe 12 by water knockout drum 4 again, thermal-arrest water pipe 12 absorbs heat from solar energy phase-change heat storage wall, cold water in thermal-arrest water pipe 12 is heated, and converges in water collector 8.When house needs to use domestic hot-water, open outlet valve 15 and release hot water.Winter, hot water system was stopped using.
The mode of operation of the ventilation system with solar energy phase-change heat storage wall provided by the invention in the winter time under daytime, night in winter, summer day, night in summer four kinds of typical conditions is introduced below in conjunction with accompanying drawing.
As shown in Figure 3, the mode of operation on the daytime in winter of the ventilation system with solar energy phase-change heat storage wall provided by the invention is: air outlet 3 and outdoor air intake 16 outside close chamber, open ventilation opening 2 and lower ventilation opening 9, rise outer thermal-insulated blind 6 and interior thermal-insulated blind 14.Hot water system is stopped using.Solar radiation is by arriving solar energy phase-change heat storage wall after glass cover-plate 5, absorbed by solar energy phase-change heat storage wall, solar energy phase-change heat storage wall is heated, and the phase-change material in solar energy phase-change heat storage wall in each phase change layer reaches respective transformation temperature fusing and carries out phase-transition heat-storage.The radiant heat that glass cover-plate 5 and air layer inhibit solar energy phase-change heat storage wall to absorb outwards scatters and disappears, and the air in air duct 7 is subject to solar radiation, and produces heat convection with solar energy phase-change heat storage wall, and hot air rises and enters indoor by upper ventilation opening 2.The cold air of indoor bottom is inhaled in air duct 7 by lower ventilation opening 9.To indoor heat release while of solar energy phase-change heat storage wall, heating indoor air.Therefore, room air defines thermal cycle flowing, effectively raises indoor thermal comfort.
As shown in Figure 4, the mode of operation at the night in winter of the ventilation system with solar energy phase-change heat storage wall provided by the invention is: close all ventilation openings, and thermal-insulated blind 14 in rising, falls outer thermal-insulated blind 6.Hot water system is stopped using.The heat that daytime stores discharges by each phase change layer of solar energy phase-change heat storage wall gradually, and the air near solar energy phase-change heat storage wall is heated, and is passed through flowing to indoor heating with indoor air flow by the air-flow heated.Because phase-change material heat storage capacity is large, thermal inertia is strong, can heat for a long time at night.Meanwhile, outer thermal-insulated blind 6 stops the heat of solar energy phase-change heat storage wall to scatter and disappear to outside.
As shown in Figure 5, the mode of operation of the summer day of the ventilation system with solar energy phase-change heat storage wall provided by the invention is: open outdoor air intake 16, outdoor air outlet 3 and lower ventilation opening 9, ventilation opening 2 is closed in pass, rise outer thermal-insulated blind 6, fall interior thermal-insulated blind 14, hot water system normally uses.Solar radiation is absorbed by solar energy phase-change heat storage wall, and solar energy phase-change heat storage wall is heated, and the phase-change material in each phase change layer of solar energy phase-change heat storage wall reaches respective transformation temperature fusing and carries out phase-transition heat-storage.Bury the thermal-arrest water pipe 12 overlayed in solar energy phase-change heat storage wall and absorb heat generation hot water, reduce the heat of solar energy phase-change heat storage wall.Air in air duct 7 is subject to solar radiation and solar energy phase-change heat storage wall dispels the heat and rises, and is discharged by outdoor air outlet 3.Outdoor air is inhaled into indoor by outdoor air intake 16, mixes with room air, then is inhaled in air duct 7 by lower ventilation opening 9.Therefore, indoor define good natural ventilation, effectively reduce interior temperature.
As shown in Figure 6, the mode of operation at the night in summer of the ventilation system with solar energy phase-change heat storage wall provided by the invention is: with the mode of operation of summer day, namely outdoor air intake 16, outdoor air outlet 3 and lower ventilation opening 9 is opened, ventilation opening 2 is closed in pass, rise outer thermal-insulated blind 6, fall interior thermal-insulated blind 14, hot water system normally uses.The heat that daytime stores discharges by each phase change layer of solar energy phase-change heat storage wall gradually, and the air in air duct 7 rises by the heat radiation of solar energy phase-change heat storage wall, is discharged by outdoor air outlet 3.Outdoor Cryogenic air is inhaled into indoor by outdoor air intake 16, mixes, then be inhaled in air duct 7 by lower ventilation opening 9 with room air.Because solar energy phase-change heat storage phase-change material heat storage capacity is within the walls large, thermal inertia is strong, and can dispel the heat to air duct 7 for a long time, night still can strengthen indoor natural ventilating, and supplies domestic hot-water.
Above-mentioned particular content in conjunction with the accompanying drawings just schematically; not form limiting the scope of the invention; belonging to the researcher in field on a kind of solar energy phase-change heat storage wall provided by the invention and the basis with the ventilation system of solar energy phase-change heat storage wall, do not need to pay creative work and the various amendment made or distortion still in protection scope of the present invention.
Claims (9)
1. a solar energy phase-change heat storage wall, it is characterized in that: this solar energy phase-change heat storage wall connects and composes successively by being filled with the high-temperature-phase change layer (10) of phase-change material, middle temperature phase change layer (11) and low-temperature phase change layer (13), and the phase transition temperature of the phase-change material of filling in high-temperature-phase change layer (10), middle temperature phase change layer (11) and low-temperature phase change layer (13) reduces successively.
2. solar energy phase-change heat storage wall according to claim 1, it is characterized in that: the outside of described high-temperature-phase change layer (10) is provided with the outer thermal-insulated blind (6) that can be elevated, the outside of low-temperature phase change layer (13) is provided with the interior thermal-insulated blind (14) that can be elevated.
3. solar energy phase-change heat storage wall according to claim 1, is characterized in that: the external surface of described high-temperature-phase change layer (10) scribbles heat absorbing coating.
4. according to the solar energy phase-change heat storage wall in claim 1-3 described in any one, the phase transition temperature of the phase-change material that the phase transition temperature of the phase-change material that it is characterized in that: the phase-change material of filling in described high-temperature-phase change layer (10), middle temperature phase change layer (11) and low-temperature phase change layer (13) is inorganic phase-changing material or organic phase change material, the phase transition temperature of the phase-change material of filling in high-temperature-phase change layer (10) is 38 ~ 42 DEG C, fill in middle temperature phase change layer (11) is 28 ~ 32 DEG C, fill in low-temperature phase change layer (13) is 18 ~ 22 DEG C.
5. with the ventilation system of the solar energy phase-change heat storage wall in claim 1-4 described in any one, it is characterized in that: the exterior wall of this ventilation system is made up of space enclosing structure (17) and glass cover-plate (5), wherein the east of exterior wall, west, north, upper and lower side are all made up of space enclosing structure (17), and the southern side of exterior wall is made up of glass cover-plate (5); And the top of the space enclosing structure of north side (17) is provided with outdoor air intake (16), the top of glass cover-plate (5) is provided with outdoor air outlet (3); Be provided with solar energy phase-change heat storage wall and hot water system within the walls outward, wherein solar energy phase-change heat storage wall is arranged near glass cover-plate (5), and the high-temperature-phase change layer (10) of solar energy phase-change heat storage wall is towards south, air duct (7) is left between solar energy phase-change heat storage wall and glass cover-plate (5), be provided with ventilation opening (2) between the space enclosing structure (17) of solar energy phase-change heat storage wall and upside, between the space enclosing structure (17) of solar energy phase-change heat storage wall and downside, be provided with lower ventilation opening (9); Outdoor air intake (16), outdoor air outlet (3), upper ventilation opening (2) and lower ventilation opening (9) are equipped with the verge board that can open and close; Hot water system carries out heat exchange through the low-temperature phase change layer (13) of solar energy phase-change heat storage wall.
6. the ventilation system with solar energy phase-change heat storage wall according to claim 5, it is characterized in that: described hot water system is by water tank (1), water knockout drum (4), water collector (8), outlet valve (15) and some thermal-arrest water pipes (12) are formed, wherein water tank (1) is arranged on the top of the space enclosing structure (17) of upside and is connected with water knockout drum (4), the two ends of every root thermal-arrest water pipe (12) are connected with water collector (8) with water knockout drum (4) respectively, all vertical the burying of all thermal-arrest water pipes (12) is overlying in the low-temperature phase change layer (13) of solar energy phase-change heat storage wall, water knockout drum (4) and burying of water collector (8) level are overlying in the low-temperature phase change layer (13) of solar energy phase-change heat storage wall, outlet valve (15) is positioned at the outside of solar energy phase-change heat storage wall and is connected with water collector (8).
7. the ventilation system with solar energy phase-change heat storage wall according to claim 6, is characterized in that: the material of described water knockout drum (4), thermal-arrest water pipe (12) and water collector (8) is copper.
8. the ventilation system with solar energy phase-change heat storage wall according to claim 5, is characterized in that: described space enclosing structure (17) is hollow brick wall.
9. the ventilation system with solar energy phase-change heat storage wall according to claim 5, is characterized in that: described glass cover-plate (5) is double layer glass.
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