CN102943531A - Passive type solar heat-collection and energy-saving wall system for low-storied building - Google Patents
Passive type solar heat-collection and energy-saving wall system for low-storied building Download PDFInfo
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- CN102943531A CN102943531A CN201210520629XA CN201210520629A CN102943531A CN 102943531 A CN102943531 A CN 102943531A CN 201210520629X A CN201210520629X A CN 201210520629XA CN 201210520629 A CN201210520629 A CN 201210520629A CN 102943531 A CN102943531 A CN 102943531A
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Abstract
The invention discloses a passive type solar heat-collection and energy-saving wall system of low-storied buildings, and relates to an energy saving wall system, which solves the problems that a conventional passive type solar heat collection wall is high in wall heat transfer coefficient, large in heat loss and low in heat supply efficiency and is not beneficial to indoor heat preservation as an upper vent hole and a lower vent hole are formed in the wall when being used for indoor heat supply. The passive type solar heat-collection and energy-saving wall system comprises a glass shade, a heat collection wall, a window and a heat preservation board. The wall system further comprises a ventilation window and a heat exchange ventilation device, wherein the ventilation window is arranged on a glass surface at an upper frame of the window; the heat exchange ventilation device is arranged on the lower vent hole; the ventilation window is used for controlling the air in an air interlayer between the glass shade and the heat collection wall to flow into a room; the heat exchange ventilation device comprises a wooden frame and a heat preservation cover plate; the heat preservation cover plate is hinged with the wooden frame and covers the wooden frame; and the heat preservation cover plate is formed by two plywoods and an extruded sheet between the two plywoods. The wall system is applicable to the low-storied buildings.
Description
Technical field
The present invention relates to a kind of energy-saving wall system, be specifically related to a kind of passive type solar energy heat-collecting and energy-saving wall system.
Background technology
Northern China very long cold in winter, therefore, it is indoor heating that building need to consume a large amount of energy, mainly use at present the non-renewable resources such as coal, a large amount of greenhouse gases in this process, have been produced, seriously influenced ecological environment, the regenerative resource Substitute coal heating of therefore seeking a kind of cleaning is the fundamental way that addresses this problem.
Solar energy is inexhaustible clear energy sources, uses under construction at present solar energy to mainly contain dual mode: a kind of is solar water, and another kind is solar electrical energy generation.The former, easy to use but only be limited to resident family hot water is provided; Latter's up-front investment is high, and it is just profitable to take on a certain scale, so also restricted in the application facet of ordinary residence, solar collecting wall is that a kind of simple passive type solar energy utilizes mode, has the advantages such as simple to operate, that early investment is low.This wall structure can utilize the solar radiation on daytime to be indoor heating more fully, saves heating institute power consumption source, and can not produce the hazardous substances of contaminated environment.
It is at window that present passive solar-collected wall is used for indoor heating, offer upper vent hole and lower air vent on the lower body of wall, sunshine passes cloche, air in the air space between heating cloche and the window, according to free convection heat transfer mechanism, hot gas enters indoor through upper vent hole, indoor cold air enters air space between double-layer glass cover and the window through lower air vent, through solar energy heating, but, this kind mode is owing to offer upper vent hole at body of wall, increase the stability that the body of wall mean thermal transmittance reduces body of wall simultaneously, be unfavorable for indoor heat insulating; Offer lower air vent on the body of wall, especially night in winter, indoor heat runs off from cloche through lower air vent easily, is unfavorable for indoor heat insulating, and thermal loss is large.
Summary of the invention
The objective of the invention is for solving existing passive solar-collected wall is to offer upper vent hole and lower air vent at body of wall for indoor heating, exist wall heat transfer coefficient high, thermal loss is large, and be unfavorable for indoor heat insulating, the problem that heating efficiency is low, and then a kind of low-rise building passive type solar energy heat-collecting and energy-saving wall system is provided.
The present invention addresses the above problem the technical scheme of taking to be: low-rise building passive type solar energy heat-collecting and energy-saving wall system of the present invention comprises cloche, the thermal-arrest body of wall, window and warming plate, the metope of the glass surface of cloche and thermal-arrest body of wall be arranged in parallel, arrange fenestrate on the thermal-arrest body of wall, be equipped with warming plate on the metope of the thermal-arrest body of wall adjacent with the lower frame of window, described wall system also comprises vent window and heat exchange aerating device, be positioned on the glass surface at upper ledge place of window and be provided with vent window, offer lower blow vent on the metope of the thermal-arrest body of wall adjacent with the lower frame of window, be provided with the heat exchange aerating device on the lower blow vent, described vent window is used for the air of the air space between control cloche and the thermal-arrest body of wall to indoor circulation, described heat exchange aerating device comprises wooden frame and heat-preserving cover plate, wooden frame is arranged on the sidewall of lower blow vent, heat-preserving cover plate and wooden frame are hinged and can cover wooden frame, and described heat-preserving cover plate is made by two veneers and the extruded sheet 7-1 between two veneers.
The invention has the beneficial effects as follows: the present invention changes the state of a plurality of air vents of traditional solar collecting wall metope, and original upper vent is replaced by louver(-vre), and lower blow vent increases the heat exchange aerating device.Open the heat-preserving cover plate of heat exchange aerating device and indoor cold air can be introduced described air space, close heat-preserving cover plate at night and can prevent that indoor heat scatters and disappears in air space.When daytime, air space was put aside solar energy, open cover plate and vent window, indoor cold air enters the air space between cloche and the accumulation of heat body of wall, absorbs solar energy, cold air heating rise enter through vent window indoor, the formation natural convection that so circulates of cold air and hot air; Along with weakening of solar radiation, temperature can descend synchronously in the air space, and cover plate and vent window are closed, and has stoped the heat of indoor hot gas to scatter and disappear to the cloche side, has kept interior temperature.
The present invention has solved effectively along with the weakening of solar radiation, and temperature can descend synchronously in the cavity, and indoor heat can be by the problem of lower blow vent loss.Thermal-arrest body of wall of the present invention has reduced the metope area that punches, and increases wall total thermal resistance, reduces difficulty of construction, and can keep the complete of indoor wall, does not affect indoor attractive in appearance.Show through experimental study: thermal transmittance 0.45～0.48W/ (m of the cover plate of heat exchange aerating device of the present invention
2K), the thermal transmittance of traditional lower port is 2.8～3.1W/ (m
2K), thermal transmittance has reduced more than 83.9%, and heat output loss of the present invention has reduced more than 15.0%, and energy-conservation more than 15.0%, the heat supply of passive solar-collected wall of the present invention and the combination property of insulation are improved.
Description of drawings
Fig. 1 is that (left side is outdoor to overall structure schematic diagram of the present invention, the right side is indoor), Fig. 2 is the vent window of energy-saving wall of the present invention system and the layout schematic diagram (from the outside) of lower blow vent, Fig. 3 is that the blow vent of existing passive solar-collected wall arranges that schematic diagram is (from the outside, b is blow vent, c is the thermal-arrest wall, and d is window).
The specific embodiment
The specific embodiment one: present embodiment is described in conjunction with Fig. 1, the low-rise building passive type solar energy heat-collecting and energy-saving wall system of present embodiment comprises cloche 1, thermal-arrest body of wall 2, window 4 and warming plate 5, the metope of the glass surface of cloche 1 and thermal-arrest body of wall 2 be arranged in parallel, arrange fenestrate 4 on the thermal-arrest body of wall 2, be equipped with warming plate 5 on the metope of the thermal-arrest body of wall 2 adjacent with the lower frame of window 4, described wall system also comprises vent window 3 and heat exchange aerating device, be positioned on the glass surface at upper ledge place of window 4 and be provided with vent window 3, offer lower blow vent 2-1 on the metope of the thermal-arrest body of wall 2 adjacent with the lower frame of window 4, be provided with the heat exchange aerating device on the lower blow vent 2-1, described vent window 3 is used for the air of the air space between control cloche 1 and the thermal-arrest body of wall 2 to indoor circulation, described heat exchange aerating device comprises wooden frame 6 and heat-preserving cover plate 7, wooden frame 6 is arranged on the sidewall of lower blow vent 2-1, heat-preserving cover plate 7 and wooden frame 6 are hinged and can cover wooden frame 6, and described heat-preserving cover plate 7 is made by two veneer 7-2 and the extruded sheet 7-1 between two veneer 7-2.
Thermal-arrest body of wall 2 in the present embodiment is arranged on the collar tie beam 8.
The specific embodiment two: in conjunction with Fig. 1 present embodiment is described, the described cloche 1 of present embodiment is the double-layer glass cover.So arrange, be conducive to the insulation needs of severe cold area and cold district, satisfy the needs of actual weather.Other is identical with the specific embodiment one.
The specific embodiment three: in conjunction with Fig. 1 present embodiment is described, the described extruded sheet 7-1 of present embodiment is polystyrene thermal insulation plate.So arrange, quality is gently easy to use, and thermal and insulating performance is good, and antiseptic property is good, meets design requirement and actual insulation needs.Other is identical with the specific embodiment one.
The specific embodiment four: in conjunction with Fig. 1 present embodiment is described, the thickness of the described extruded sheet 7-1 of present embodiment is 60mm～80mm.So arrange, quality is gently easy to use, and thermal and insulating performance is good, and antiseptic property is good, meets design requirement and actual insulation needs.Other is identical with the specific embodiment one or three.
The specific embodiment five: in conjunction with Fig. 1 present embodiment is described, the thickness of the described extruded sheet 7-1 of present embodiment is 60mm.So arrange, quality is gently easy to use, and thermal and insulating performance is good, and antiseptic property is good, meets design requirement and actual insulation needs.Other is identical with the specific embodiment four.
The specific embodiment six: in conjunction with Fig. 1 and Fig. 2 present embodiment is described, the length of the described vent window 3 of present embodiment is 580mm～620mm, and the width of vent window 3 is 280mm～320mm.So arrange, meet design requirement and the needs of actual air circulation.Other is identical with the specific embodiment one.
The specific embodiment seven: in conjunction with Fig. 1 and Fig. 2 present embodiment is described, the length of the described vent window 3 of present embodiment is 600mm, and the width of vent window 3 is 300mm.So arrange, meet design requirement and the needs of actual air circulation.Other is identical with the specific embodiment six.
The specific embodiment eight: in conjunction with Fig. 1 present embodiment is described, the described heat-preserving cover plate 7 of present embodiment is rectangular slab, and the length of heat-preserving cover plate 7 is 590mm～610mm, the width 390mm～410mm of heat-preserving cover plate 7.So arrange, meet design requirement and the needs of actual air circulation.Other is identical with the specific embodiment one.
The specific embodiment nine: in conjunction with Fig. 1 present embodiment is described, the described heat-preserving cover plate 7 of present embodiment is rectangular slab, and the length of heat-preserving cover plate 7 is 600mm, the width 400mm of heat-preserving cover plate 7.So arrange, meet design requirement and the needs of actual air circulation.Other is identical with the specific embodiment eight.
Embodiment: for verifying energy-saving effect of the present invention, interior heat output by passive solar-collected wall of unit of account time, cold district is selected in the construction site, according to relevant research, has the passive solar-collected wall air space thickness of ventilation opening to be preferably in 100～130mm.The ventilation opening area A
vCross-sectional area A with cavity
sRatio should be 0.5～0.7.In the present embodiment, the air space of unit module is decided to be 100mm, and the ventilation opening area is 0.24m
2Window is the single frame and double glasses plastic-steel window, and the air-breather cover plate is hollow plywood (such as Fig. 3) before improving, and the air-breather cover plate of present embodiment is for insulation clamping plate (folder 60mm extruded sheet), such as Fig. 1～Fig. 2 (Fig. 1 is the longitudinal section of low-rise building).Main body wall is to paste the 80mm polyphenyl plate in the 370mm clay solid brick, and collar tie beam is to paste the 80mm polyphenyl plate in 370 * 250mm steel concrete.
1) wall heat transfer coefficient K is calculated as follows:
Calculate as can be known K
q=0.43W/ (m
2.K) (main body wall thermal transmittance); K
V2=0.47W/ (m
2K) (this enforcement; The lower ventilation opening extruded sheet thermal transmittance of example); K
b=0.49W/ (m
2.K) (collar tie beam thermal transmittance),
2) Outside wall average heat conducting modulus K
iCalculate:
Calculate as can be known K
i=0.44W/ (m
2.K),
3) interior heat output q by exterior wall of unit interval on the unit building area
HBe calculated as follows:
T in the formula
n---indoor calculate temperature, get 16 ℃;
t
e---outdoor mean air temperature during heating period, ℃;
A---exterior wall modified temperature difference factor;
ε
i---the correction factor of heat transfer coefficient of outer wall;
K
i---Outside wall average heat conducting modulus, W/ (m
2.K);
F
i---the area of exterior wall, m
2
A
0---building area, m
2,
The parametric t of using in the calculating
n=16.00 ℃, t
e=-8.50 ℃, a=1.00, ε
i=0.92, K
V1=3.00W/ (m
2K) (traditional ventilation opening hollow plywood thermal transmittance) is through calculating, by the heat q of traditional Nan Qiang
H1=87.79/A
0, by the heat q of present embodiment Nan Qiang
H2=74.02/A
0, the passive type solar energy heat collecting and accumulating wall heat output of present embodiment reduces 15.69%.
Claims (9)
1. low-rise building passive type solar energy heat-collecting and energy-saving wall system, described wall system comprises cloche (1), thermal-arrest body of wall (2), window (4) and warming plate (5), the metope of the glass surface of cloche (1) and thermal-arrest body of wall (2) be arranged in parallel, arrange on the thermal-arrest body of wall (2) fenestrate (4), be equipped with warming plate (5) on the metope of the thermal-arrest body of wall (2) adjacent with the lower frame of window (4), it is characterized in that: described wall system also comprises vent window (3) and heat exchange aerating device, be positioned on the glass surface at upper ledge place of window (4) and be provided with vent window (3), offer lower blow vent (2-1) on the metope of the thermal-arrest body of wall (2) adjacent with the lower frame of window (4), be provided with the heat exchange aerating device on the lower blow vent (2-1), described vent window (3) is used for the air of the air space between control cloche (1) and the thermal-arrest body of wall (2) to indoor circulation, described heat exchange aerating device comprises wooden frame (6) and heat-preserving cover plate (7), wooden frame (6) is arranged on the sidewall of lower blow vent (2-1), heat-preserving cover plate (7) and wooden frame (6) are hinged and can cover wooden frame (6), and described heat-preserving cover plate (7) is made by two veneers (7-2) and the extruded sheet (7-1) that is positioned between two veneers (7-2).
2. low-rise building passive type solar energy heat-collecting and energy-saving wall system according to claim 1, it is characterized in that: described cloche (1) is the double-layer glass cover.
3. low-rise building passive type solar energy heat-collecting and energy-saving wall system according to claim 1, it is characterized in that: described extruded sheet (7-1) is polystyrene thermal insulation plate.
4. according to claim 1 or 3 described low-rise building passive type solar energy heat-collecting and energy-saving wall systems, it is characterized in that: the thickness of described extruded sheet (7-1) is 60mm～80mm.
5. low-rise building passive type solar energy heat-collecting and energy-saving wall system according to claim 4, it is characterized in that: the thickness of described extruded sheet (7-1) is 60mm.
6. low-rise building passive type solar energy heat-collecting and energy-saving wall system according to claim 1, it is characterized in that: the length of described vent window (3) is 580mm～620mm, the width of vent window (3) is 280mm～320mm.
7. low-rise building passive type solar energy heat-collecting and energy-saving wall system according to claim 6, it is characterized in that: the length of described vent window (3) is 600mm, the width of vent window (3) is 300mm.
8. low-rise building passive type solar energy heat-collecting and energy-saving wall system according to claim 1, it is characterized in that: described heat-preserving cover plate (7) is rectangular slab, the length of heat-preserving cover plate (7) is 590mm～610mm, the width 390mm～410mm of heat-preserving cover plate (7).
9. low-rise building passive type solar energy heat-collecting and energy-saving wall system according to claim 8, it is characterized in that: described heat-preserving cover plate (7) is rectangular slab, and the length of heat-preserving cover plate (7) is 600mm, the width 400mm of heat-preserving cover plate (7).
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| Application Number | Priority Date | Filing Date | Title |
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| CN201210520629.XA CN102943531B (en) | 2012-12-06 | 2012-12-06 | Passive type solar heat-collection and energy-saving wall system for low-storied building |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210520629.XA CN102943531B (en) | 2012-12-06 | 2012-12-06 | Passive type solar heat-collection and energy-saving wall system for low-storied building |
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| CN102943531B CN102943531B (en) | 2015-04-15 |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4643246A (en) * | 1984-07-10 | 1987-02-17 | Yoshida Kogyo K. K. | Bay window with ventilator |
| CN2094609U (en) * | 1991-02-10 | 1992-01-29 | 王晓东 | Steel combined thermo-preserving closed window |
| CN101187288A (en) * | 2006-06-08 | 2008-05-28 | 李汉清 | Ventilating air conditioning window and its usage method |
| CN201902143U (en) * | 2010-01-11 | 2011-07-20 | 陈蜀乔 | Light-adjustable and cleanable solar automatic air-conditioning energy-saving vent window |
| CN202209722U (en) * | 2011-08-31 | 2012-05-02 | 石河子大学 | Solar air heat collector assembly combined with building |
| CN102759155A (en) * | 2011-04-27 | 2012-10-31 | 胡志龙 | Solar wall body air conditioner and indoor air adjusting method thereof |
-
2012
- 2012-12-06 CN CN201210520629.XA patent/CN102943531B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4643246A (en) * | 1984-07-10 | 1987-02-17 | Yoshida Kogyo K. K. | Bay window with ventilator |
| CN2094609U (en) * | 1991-02-10 | 1992-01-29 | 王晓东 | Steel combined thermo-preserving closed window |
| CN101187288A (en) * | 2006-06-08 | 2008-05-28 | 李汉清 | Ventilating air conditioning window and its usage method |
| CN201902143U (en) * | 2010-01-11 | 2011-07-20 | 陈蜀乔 | Light-adjustable and cleanable solar automatic air-conditioning energy-saving vent window |
| CN102759155A (en) * | 2011-04-27 | 2012-10-31 | 胡志龙 | Solar wall body air conditioner and indoor air adjusting method thereof |
| CN202209722U (en) * | 2011-08-31 | 2012-05-02 | 石河子大学 | Solar air heat collector assembly combined with building |
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