CN102943531B - 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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- CN102943531B CN102943531B CN201210520629.XA CN201210520629A CN102943531B CN 102943531 B CN102943531 B CN 102943531B CN 201210520629 A CN201210520629 A CN 201210520629A CN 102943531 B CN102943531 B CN 102943531B
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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 needs to consume a large amount of energy, mainly use the non-renewable resources such as coal at present, create a large amount of greenhouse gases in this process, serious have impact on ecological environment, and the regenerative resource Substitute coal heating therefore finding a kind of cleaning is the fundamental way addressed this problem.
Solar energy is inexhaustible clear energy sources, uses solar energy to mainly contain two kinds of modes at present under construction: one is solar water, and another kind is solar electrical energy generation.The former, easy to use but be only limited to resident family hot water is provided; The latter's up-front investment is high, and needs take on a certain scale just profitable, so also restricted in the application aspect of ordinary residence, solar collecting wall is a kind of simple passive type solar energy Land use systems, has the advantages such as simple to operate, early investment is low.This wall structure can utilize the solar radiation on daytime for indoor heating more fully, save heating source of consuming energy, and the hazardous substances of contaminated environment can not be produced.
It is at window that current passive solar-collected wall is used for indoor heating, lower body of wall is offered upper vent hole and lower air vent, sunshine is through cloche, air in air space between heating cloche and window, according to free convection heat transfer mechanism, hot gas enters indoor through upper vent hole, indoor cold air enters the air space between double-layer glass cover and window through lower air vent, through solar energy heating, but, this kind of mode owing to offering upper vent hole on body of wall, add the stability that body of wall mean thermal transmittance reduces body of wall simultaneously, be unfavorable for indoor heat insulating, body of wall is offered lower air vent, especially night in winter, indoor heat easily runs off from cloche through lower air vent, and be unfavorable for indoor heat insulating, thermal loss is large.
Summary of the invention
The object of the invention is for solving existing passive solar-collected wall for indoor heating is on body of wall, offer upper vent hole and lower air vent, there is 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 is the technical scheme taked that solves the problem: low-rise building passive type solar energy heat-collecting and energy-saving wall system of the present invention comprises cloche, thermal-arrest body of wall, window and warming plate, the glass surface of cloche and the metope of thermal-arrest body of wall be arranged in parallel, thermal-arrest body of wall is arranged fenestrate, the metope of the thermal-arrest body of wall adjacent with the lower frame of window is equipped with warming plate, described wall system also comprises vent window and heat exchange aerating device, the glass surface being positioned at the window at the upper ledge place of window is provided with vent window, the metope of the thermal-arrest body of wall adjacent with the lower frame of window offers lower blow vent, lower blow vent is provided with heat exchange aerating device, described vent window is for controlling the air of the air space between cloche and 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 hinged and can wooden frame be covered, described heat-preserving cover plate is made up of two veneers and the extruded sheet between two veneers.
The invention has the beneficial effects as follows: the present invention changes the state of the multiple air vent of traditional solar collecting wall metope, and original upper vent is replaced by louver(-vre), lower blow vent increases heat exchange aerating device.Cold air inside can be introduced described air space by the heat-preserving cover plate opening heat exchange aerating device, closes heat-preserving cover plate indoor heat can be prevented to scatter and disappear in air space at night.During air space savings solar energy on daytime, open cover plate and vent window, cold air inside enters the air space between cloche and accumulation of heat body of wall, absorbs solar energy, cold air heating is risen and is entered indoor through vent window, and cold air and hot air so circulate formation natural convection; Along with weakening of solar radiation, in air space, temperature can synchronously decline, and cover plate and vent window are closed, and prevents the heat of indoor hot gas to scatter and disappear to cloche side, maintains interior temperature.
Present invention efficiently solves weakening along with solar radiation, empty cavity temperature can synchronously decline, the problem that indoor heat can be run off by lower blow vent.Thermal-arrest body of wall of the present invention decreases metope and to punch area, increases wall total thermal resistance, reduces difficulty of construction, and can holding chamber inner wall surface complete, does not affect indoor beauty.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 reduces more than 83.9%, and heat output loss of the present invention decreases more than 15.0%, energy-conservation more than 15.0%, and the heat supply of passive solar-collected wall of the present invention and the combination property of insulation are improved.
Accompanying drawing explanation
Fig. 1 is that (left side is for outdoor for overall structure schematic diagram of the present invention, right side is indoor), Fig. 2 is the vent window of energy-saving wall system of the present invention and the layout schematic diagram (side is seen outdoor) of lower blow vent, Fig. 3 is that the blow vent of existing passive solar-collected wall arranges that schematic diagram (see by side outdoor, b is blow vent, c is thermal-arrest wall, and d is window).
Detailed description of the invention
Detailed description of the invention one: composition graphs 1 illustrates present embodiment, 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 glass surface of cloche 1 and the metope of thermal-arrest body of wall 2 be arranged in parallel, thermal-arrest body of wall 2 arranges fenestrate 4, the metope of the thermal-arrest body of wall 2 adjacent with the lower frame of window 4 is equipped with warming plate 5, described wall system also comprises vent window 3 and heat exchange aerating device, the glass surface being positioned at the window at the upper ledge place of window 4 is provided with vent window 3, the metope of the thermal-arrest body of wall 2 adjacent with the lower frame of window 4 offers lower blow vent 2-1, lower blow vent 2-1 is provided with heat exchange aerating device, described vent window 3 is for controlling the air of the air space between cloche 1 and 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 is hinged and can cover wooden frame 6 with wooden frame 6, described heat-preserving cover plate 7 is made up of two veneer 7-2 and the extruded sheet 7-1 between two veneer 7-2.
Thermal-arrest body of wall 2 in present embodiment is arranged on collar tie beam 8.
Detailed description of the invention two: composition graphs 1 illustrates present embodiment, described in present embodiment, cloche 1 is double-layer glass cover.Setting like this, is conducive to the insulation needs of severe cold area and cold district, meets the needs of actual weather.Other is identical with detailed description of the invention one.
Detailed description of the invention three: composition graphs 1 illustrates present embodiment, extruded sheet 7-1 described in present embodiment is polystyrene thermal insulation plate.Setting like this, 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 detailed description of the invention one.
Detailed description of the invention four: composition graphs 1 illustrates present embodiment, described in present embodiment, the thickness of extruded sheet 7-1 is 60mm ~ 80mm.Setting like this, 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 detailed description of the invention one or three.
Detailed description of the invention five: composition graphs 1 illustrates present embodiment, described in present embodiment, the thickness of extruded sheet 7-1 is 60mm.Setting like this, 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 detailed description of the invention four.
Detailed description of the invention six: composition graphs 1 and Fig. 2 illustrate present embodiment, described in present embodiment, the length of vent window 3 is 580mm ~ 620mm, and the width of vent window 3 is 280mm ~ 320mm.Setting like this, meet design requirement the needs circulated with actual air.Other is identical with detailed description of the invention one.
Detailed description of the invention seven: composition graphs 1 and Fig. 2 illustrate present embodiment, described in present embodiment, the length of vent window 3 is 600mm, and the width of vent window 3 is 300mm.Setting like this, meet design requirement the needs circulated with actual air.Other is identical with detailed description of the invention six.
Detailed description of the invention eight: composition graphs 1 illustrates present embodiment, described in present embodiment, heat-preserving cover plate 7 is rectangular slab, and the length of heat-preserving cover plate 7 is 590mm ~ 610mm, and the width of heat-preserving cover plate 7 is 390mm ~ 410mm.Setting like this, meet design requirement the needs circulated with actual air.Other is identical with detailed description of the invention one.
Detailed description of the invention nine: composition graphs 1 illustrates present embodiment, described in present embodiment, heat-preserving cover plate 7 is rectangular slab, and the length of heat-preserving cover plate 7 is 600mm, and the width of heat-preserving cover plate 7 is 400mm.Setting like this, meet design requirement the needs circulated with actual air.Other is identical with detailed description of the invention eight.
Embodiment: for verifying energy-saving effect of the present invention, by the heat output of passive solar-collected wall in the unit of account time, cold district is selected in construction site, according to relevant research, has the passive solar-collected wall air space thickness of ventilation opening preferably at 100 ~ 130mm.Ventilation opening area A
vwith the cross-sectional area A of cavity
sratio should 0.5 ~ 0.7.In the present embodiment, the air space of unit module is decided to be 100mm, and ventilation opening area is 0.24m
2.Window is single frame and double glasses plastic-steel window, before improving, air-breather cover plate is hollow plywood (as Fig. 3), the air-breather cover plate of the present embodiment is insulation clamping plate (folder 60mm extruded sheet), as Fig. 1 ~ Fig. 2 (Fig. 1 is the longitudinal section of low-rise building).Main body wall is paste 80mm polyphenyl plate in 370mm clay solid brick, and collar tie beam is paste 80mm polyphenyl plate in 370 × 250mm steel concrete.
1) wall heat transfer coefficient K is calculated as follows:
Calculate 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 known K
i=0.44W/ (m
2.k),
3) the heat output q by exterior wall in the unit interval on unit building area
hbe calculated as follows:
T in formula
n------indoor calculate temperature, gets 16 DEG C;
T
e------outdoor mean air temperature during heating period, DEG C;
A------exterior wall modified temperature difference factor;
ε
ithe correction factor of------heat transfer coefficient of outer wall;
K
i------Outside wall average heat conducting modulus, W/ (m
2.k);
F
ithe area of------exterior wall, m
2;
A
0------building area, m
2,
The parametric t used in calculating
n=16.00 DEG C, t
e=-8.50 DEG C, a=1.00, ε
i=0.92, K
v1=3.00W/ (m
2k) (traditional ventilation opening hollow plywood thermal transmittance), through calculating, by the heat q of traditional Nan Qiang
h1=87.79/A
0, by the heat q of the present embodiment Nan Qiang
h2=74.02/A
0, the passive type solar energy heat collecting and accumulating wall heat output of the 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 glass surface of cloche (1) and the metope of thermal-arrest body of wall (2) be arranged in parallel, thermal-arrest body of wall (2) is arranged fenestrate (4), the metope of the thermal-arrest body of wall (2) adjacent with the lower frame of window (4) is equipped with warming plate (5), it is characterized in that: described wall system also comprises vent window (3) and heat exchange aerating device, the glass surface being positioned at the window (4) at the upper ledge place of window (4) is provided with vent window (3), the metope of the thermal-arrest body of wall (2) adjacent with the lower frame of window (4) offers lower blow vent (2-1), lower blow vent (2-1) is provided with heat exchange aerating device, described vent window (3) is for controlling the air of the air space between cloche (1) and 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), described heat-preserving cover plate (7) is made up of two veneers (7-2) and the extruded sheet (7-1) be 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, is characterized in that: described cloche (1) is double-layer glass cover.
3. low-rise building passive type solar energy heat-collecting and energy-saving wall system according to claim 1, is characterized in that: described extruded sheet (7-1) is polystyrene thermal insulation plate.
4. the low-rise building passive type solar energy heat-collecting and energy-saving wall system according to claim 1 or 3, 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, 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, and the width of heat-preserving cover plate (7) is 390mm ~ 410mm.
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, the length of heat-preserving cover plate (7) is 600mm, and the width of heat-preserving cover plate (7) is 400mm.
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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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| 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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| Publication Number | Publication Date |
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| CN102943531A CN102943531A (en) | 2013-02-27 |
| CN102943531B true 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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