CN202483028U - High-efficiency solar phase-change heat-storing heat-collecting wall - Google Patents
High-efficiency solar phase-change heat-storing heat-collecting wall Download PDFInfo
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- CN202483028U CN202483028U CN2011202836908U CN201120283690U CN202483028U CN 202483028 U CN202483028 U CN 202483028U CN 2011202836908 U CN2011202836908 U CN 2011202836908U CN 201120283690 U CN201120283690 U CN 201120283690U CN 202483028 U CN202483028 U CN 202483028U
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Abstract
The utility model discloses a high-efficiency solar phase-change heat-storing heat-collecting wall, which belongs to the solar heat-storing heat-collecting device field. A phase-change material plate is attached on the surface of a building wall inside a solar heat-storing heat-collecting wall channel. Vortex generators are arranged in an array on the surface of the phase-change material plate in a way to be at a certain angle of attack so as to lead to thinned vortexes or destroy flows in a boundary layer tightly attached on the wall or increase the turbulent flow strength to enhance the heat exchanges between the surface air and the phase-change material plate. The heat-storing and heat-releasing rate of the phase-change material plate is increased. The efficacy of the solar phase-change heat-storing heat-collecting wall system is thus improved. Openings on the top and the bottom of the channel are respectively communicated with a building room and the outdoors. Different running strategies are adopted in winter and in summer. In winter, the solar phase-change heat-storing heat-collecting wall is applied for supplying heat to the indoors. In summer, the wall is applied for discharging the heat air inside the channel out and improving the comfortable degree of the indoors. The solar heat-storing heat-collecting wall which has the characteristics of simple manufacture and convenient installation has a wide application prospect and a great popularization value in the solar building field.
Description
Technical field
The utility model belongs to the heat collector field that utilizes solar heat-preservation, particularly a kind of high-efficiency solar phase-change heat-accumulation heat-collection wall.
Background technology
Problems such as energy crisis, global warming, environment pollution are the important topics of face of mankind nowadays; Make full use of natural energy resource such as solar energy; It is the effective way that reduces building energy consumption, improves indoor hot comfort; Therefore developed various solar building technology, passive type is like directly be benefited formula, heat collecting and accumulating wall type etc.The solar energy resources energy-flux density is low, intermittent and unsettled characteristics need develop energy storage technology to make full use of.In conventional passive type solar energy building, utilize the sensible heat of building space enclosing structure material (like concrete, brick) to store unnecessary solar energy daytime usually, discharge again evening to room air and improve its temperature.But the shortcoming of the sensible heat accumulation of heat of concrete, brick is that variations in temperature is big, heat storage capacity is relatively little; And phase-change material can the form with latent heat absorb or discharge great amount of heat under isothermal or approximate isothermal condition; The equivalent specific heat of latent heat of phase change in certain temperature range is far longer than the sensible heat of common common used material; So utilize phase-change material to store solar energy remarkable advantages is arranged, can further improve the thermal comfort of building, reduce auxiliary heating air conditioning energy consumption.Yet, in the formula phase-changing energy-storing solar building of directly being benefited, be about to the phase-change material plate and be arranged in the architectural exterior-protecting construction inner surface, because phase-change material plate surface is in the natural convection state with room air, convection transfer rate is little; The solar energy amount of storing receives surface film thermal conductance and the little restriction of phase-change material coefficient of thermal conductivity, has directly influenced it and has used usefulness.The phase-change material plate is arranged in the channel inner surface of heat collecting and accumulating wall, because air flowing phase has certain improvement than the formula heat exchange that directly is benefited in the passage.
The utility model content
The purpose of the utility model is to be that variations in temperature is big, heat storage capacity is relatively little to concrete, brick to the shortcoming of the sensible heat accumulation of heat of solar energy; And in the formula phase-changing energy-storing solar building of directly being benefited, be about to the phase-change material plate and be arranged in the architectural exterior-protecting construction inner surface, because phase-change material plate surface is in the natural convection state with room air, convection transfer rate is little; The solar energy amount of storing receives surface film thermal conductance and the little restriction of phase-change material coefficient of thermal conductivity; Directly influence it and used the deficiency of usefulness; A kind of high-efficiency solar phase-change heat-accumulation heat-collection wall is provided, it is characterized in that, the phase-change material plate is attached to construction wall surface in the solar heat-collection and heat-accumulation wall passage; And arrange various eddy generators on phase-change material plate surface according to meeting stream angle of attack β and array way, passage top and bottom opening respectively with build room and outdoor communicating.
Said phase-change material plate is to be packaged with phase-change material or high density polyethylene (HDPE) in gypsum plank, cement board or the metal sheet roof covering box that is mixed with phase-change material as the shaping phase-change material plate that supports.
Said phase-change material is an inorganic phase-changing material, or adds the organic phase change material of fireproofing agent.
Said eddy generator has a. triangle aerofoil profile, the trapezoidal aerofoil profile of b., c. rectangle aerofoil profile, the solid bevel semicylinder of d., the solid bevel semiellipse of e. cylinder, the hollow bevel semicylinder of f. or the hollow bevel semiellipse of g. column structure;
It is said that to meet stream angle of attack β be 0 °-90 °.
The invention has the beneficial effects as follows high-efficiency solar phase-change heat-accumulation heat-collection wall system of the present invention; Produced vortex (especially vertically whirlpool) when the air of buoyancy-driven is flowed through eddy generator because passage is interior; In the process that transports downstream, dash volume phase-change material wooden partition face consumingly, boundary layer bottom laminar flow is played disturbance and destruction, make that the heat convection between air and the phase-change material plate effectively strengthens; Improved the rate of heat release of holding of phase-change material effectively; Improve solar phase-change heat-accumulation heat-collection wall system usefulness and solar thermal utilization rate effectively, take different operation strategies respectively in winter, summer, winter is to indoor heating; Discharge hot air in the passage summer, improves indoor comfort level, helps to improve building energy consumptions such as indoor thermal comfort and reduction heating air conditioning.In addition, system's processing is simple, easy for installation.
Description of drawings
Fig. 1 is the high-efficiency solar phase-change heat-accumulation heat-collection wall system structural representation, and wherein Fig. 1 (a) is for using figure winter; Fig. 1 (b) is for using figure summer.
Fig. 2 is that the aerofoil profile eddy generator is at phase-change material plate surface arrangement sketch map.
Fig. 3 is several kinds of eddy generator sketch mapes.
The specific embodiment
The utility model provides simple, easy for installation the having of a kind of processing and manufacturing to hold the high-efficiency solar phase-change heat-accumulation heat-collection wall that utilizes the eddy generator augmentation of heat transfer that rate of heat release height, solar thermal utilization rate are high, indoor hot comfort is high.Below in conjunction with accompanying drawing the utility model is explained.
High-efficiency solar phase-change heat-accumulation heat-collection wall structural representation as shown in Figure 1.Phase-change material plate 9 is attached to construction wall 4 surfaces in the solar heat-collection and heat-accumulation wall passage 7 among the figure; And on phase-change material plate 9 surfaces meet stream angle of attack β (as shown in Figure 2) and the array way with 0 °-90 ° arranged various eddy generators 10 (as shown in Figure 2); Passage top end opening 3 and bottom opening 5 respectively with building room 1 and outdoor communicating; Solar heat-collection and heat-accumulation wall passage 7 sets out air port cover plate 11 and with the bottom air intake cover plate 6 is set by constituting at big glass plate 8 of construction wall 4 fixed outside on solar heat-collection and heat-accumulation wall passage 7 tops.Eddy generator 10 has a. triangle aerofoil profile, the trapezoidal aerofoil profile of b., c. rectangle aerofoil profile, the solid bevel semicylinder of d., the solid bevel semiellipse of e. cylinder, the hollow bevel semicylinder of f. or the hollow bevel semiellipse of g. column structure.Meet stream angle of attack β and array format and be arranged in phase-change material plate 9 surfaces; Induce vortex attenuate or disturbance and destruction to be close to the boundary layer bottom laminar flow of wall; Strengthen turbulence intensity and strengthening surface air and 9 heat exchange of phase-change material plate; Improve the rate of heat release of holding of phase-change material, thereby improved the usefulness of solar phase-change heat-accumulation heat-collection wall system.The geometry of eddy generator, size and array format, quantity require with the channel width respective design and decide, can but be not limited in pairs, arrange more, multiple row; In-line arrangement, suitable row or wrong row, stagger arrangement; It is mutual spacing and decide according to designing requirement such as sun wall, service condition at the relative position on phase-change material plate surface all around.
Said phase-change material plate 9 can be to be mixed with to be packaged with phase-change material or high density polyethylene (HDPE) (HDPE) in building materials plate (like gypsum plank, cement board etc.) or the metal sheet roof covering box of phase-change material as the shaping phase-change material plate that supports etc.; Phase-change material can be inorganic phase-changing material (such as but not limited to Na
2SO
410H
2O, CaCl
26H
2O etc.), also can be the organic phase change material (such as but not limited to paraffin, aliphatic acid etc.) that adds fireproofing agent, satisfy the building fire protection demand.Phase transition temperature is suitable, and latent heat of phase change is bigger, with climate type with the Channel Design requirement and decide;
Said high-efficiency solar phase-change heat-accumulation heat-collection wall is closed and outdoor opening by air outlet cover plate 11 and air intake cover plate 6 in the winter time; Open passage top end opening 3 and bottom opening 5; Make solar heat-collection and heat-accumulation wall passage 7 and building room 1 indoor communicating (shown in a among Fig. 1); Daytime, sunshine was radiated at phase-change material plate 9 surfaces through glass plate 8; Phase-change material fusing heat absorption also stores, and air are heated temperature and raise in the solar heat-collection and heat-accumulation wall passage 7 simultaneously, owing to exist density contrast to form natural convection (also can be on the top, bottom blower fan is installed with the raising wind speed) with indoor than cold air; Heated air is sent into indoor, thereby heating room air (give indoor heating); In evening, after air themperature reduced in the solar heat-collection and heat-accumulation wall passage 7, phase-change material solidified heat release and adds hot air, to indoor heating, improves indoor hot comfort through natural convection; And outside glass plate 8, arrange roller shutter or insulating board 12, to reduce outside radiation loss.Because the eddy generator 10 on phase-change material plate 9 surfaces is induced vortex attenuate or destruction to be close to the boundary layer of wall or is strengthened turbulence intensity and strengthening surface air and the heat exchange of phase-change material plate; That has improved phase-change material holds heat release usefulness, thereby has improved the efficient of solar phase-change heat-accumulation heat-collection wall system.Summer; Opening air outlet cover plate 11 communicates with outdoor with air intake cover plate 6; Close and indoor passage top end opening that communicates 3 and bottom opening 5 (shown in b among Fig. 1), hot air in the passage is discharged, the thermostatic characteristics during simultaneously owing to the phase-change material phase transformation through natural convection; Make biography to indoor temperature wave decay, improved indoor hot comfort.
Claims (4)
1.. high-efficiency solar phase-change heat-accumulation heat-collection wall; It is characterized in that; The phase-change material plate is attached to construction wall surface in the solar heat-collection and heat-accumulation wall passage; And arrange various eddy generators on phase-change material plate surface according to meeting stream angle of attack β and array way, passage top and bottom opening respectively with build room and outdoor communicating.
2. according to the said high-efficiency solar phase-change heat-accumulation heat-collection wall of claim 1, it is characterized in that said phase-change material plate is in gypsum plank, cement board, to add phase-change material paraffin or aliphatic acid; Or be packaged with above-mentioned phase-change material or high density polyethylene (HDPE) in the metal sheet roof covering box as the shaping phase-change material plate that supports.
3. according to the said high-efficiency solar phase-change heat-accumulation heat-collection wall of claim 1; It is characterized in that said eddy generator has a. triangle aerofoil profile, the trapezoidal aerofoil profile of b., c. rectangle aerofoil profile, the solid bevel semicylinder of d., the solid bevel semiellipse of e. cylinder, the hollow bevel semicylinder of f. or the hollow bevel semiellipse of g. column structure.
4. according to the said high-efficiency solar phase-change heat-accumulation heat-collection wall of claim 1, it is characterized in that said to meet stream angle of attack β be 0
o-90
o
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202836908U CN202483028U (en) | 2011-08-05 | 2011-08-05 | High-efficiency solar phase-change heat-storing heat-collecting wall |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202836908U CN202483028U (en) | 2011-08-05 | 2011-08-05 | High-efficiency solar phase-change heat-storing heat-collecting wall |
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| CN202483028U true CN202483028U (en) | 2012-10-10 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2011202836908U Expired - Fee Related CN202483028U (en) | 2011-08-05 | 2011-08-05 | High-efficiency solar phase-change heat-storing heat-collecting wall |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104654615A (en) * | 2013-11-17 | 2015-05-27 | 成都奥能普科技有限公司 | Low-temperature solar photovoltaic photo-thermal storage electricity and heat cogeneration system |
| CN106869307A (en) * | 2017-03-10 | 2017-06-20 | 浙江远成精工科技有限公司 | A kind of integrated house |
| CN107192287A (en) * | 2017-07-13 | 2017-09-22 | 长春工程学院 | It is a kind of that there is heating and the energy-storage wall of cooling function |
| CN110080416A (en) * | 2019-05-06 | 2019-08-02 | 黄新凯 | Build the heat preservation ventilating wall body structure in room |
| CN113819545A (en) * | 2021-07-27 | 2021-12-21 | 西安交通大学 | Wall body |
-
2011
- 2011-08-05 CN CN2011202836908U patent/CN202483028U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104654615A (en) * | 2013-11-17 | 2015-05-27 | 成都奥能普科技有限公司 | Low-temperature solar photovoltaic photo-thermal storage electricity and heat cogeneration system |
| CN106869307A (en) * | 2017-03-10 | 2017-06-20 | 浙江远成精工科技有限公司 | A kind of integrated house |
| CN107192287A (en) * | 2017-07-13 | 2017-09-22 | 长春工程学院 | It is a kind of that there is heating and the energy-storage wall of cooling function |
| CN110080416A (en) * | 2019-05-06 | 2019-08-02 | 黄新凯 | Build the heat preservation ventilating wall body structure in room |
| CN113819545A (en) * | 2021-07-27 | 2021-12-21 | 西安交通大学 | Wall body |
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Legal Events
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121010 Termination date: 20130805 |