CN109680816B - Temperature-control air layer blocking type heat insulation ultra-low energy consumption outer wall structure - Google Patents
Temperature-control air layer blocking type heat insulation ultra-low energy consumption outer wall structure Download PDFInfo
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- CN109680816B CN109680816B CN201910111987.7A CN201910111987A CN109680816B CN 109680816 B CN109680816 B CN 109680816B CN 201910111987 A CN201910111987 A CN 201910111987A CN 109680816 B CN109680816 B CN 109680816B
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- 238000005265 energy consumption Methods 0.000 title claims abstract description 26
- 238000009413 insulation Methods 0.000 title claims abstract description 16
- 230000000903 blocking effect Effects 0.000 title claims abstract description 12
- 238000007789 sealing Methods 0.000 claims abstract description 56
- 239000000463 material Substances 0.000 claims abstract description 5
- 239000002131 composite material Substances 0.000 claims abstract description 4
- 230000001502 supplementing effect Effects 0.000 claims description 9
- 238000009423 ventilation Methods 0.000 claims description 9
- 239000011521 glass Substances 0.000 claims description 8
- 230000000694 effects Effects 0.000 abstract description 8
- 238000004134 energy conservation Methods 0.000 abstract description 4
- 238000010438 heat treatment Methods 0.000 description 12
- 230000005855 radiation Effects 0.000 description 11
- 238000004378 air conditioning Methods 0.000 description 7
- 238000005057 refrigeration Methods 0.000 description 7
- 238000010586 diagram Methods 0.000 description 5
- 238000004321 preservation Methods 0.000 description 5
- 238000010276 construction Methods 0.000 description 3
- 239000012774 insulation material Substances 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 239000003245 coal Substances 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 239000002028 Biomass Substances 0.000 description 1
- 238000003915 air pollution Methods 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 238000005286 illumination Methods 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000008719 thickening Effects 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
- 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
- E04B1/76—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls specifically with respect to heat only
- E04B1/762—Exterior insulation of exterior walls
- E04B1/7645—Exterior insulation of exterior walls with ventilation means for the insulation
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F5/00—Air-conditioning systems or apparatus not covered by F24F1/00 or F24F3/00, e.g. using solar heat or combined with household units such as an oven or water heater
- F24F5/0075—Systems using thermal walls, e.g. double window
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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
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
- Y02B30/90—Passive houses; Double facade technology
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Physics & Mathematics (AREA)
- Structural Engineering (AREA)
- Electromagnetism (AREA)
- Civil Engineering (AREA)
- Acoustics & Sound (AREA)
- Life Sciences & Earth Sciences (AREA)
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- Chemical & Material Sciences (AREA)
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Abstract
The invention belongs to the technical field of building energy conservation, and particularly relates to a temperature-control air layer blocking type heat insulation ultra-low energy consumption outer wall structure, which comprises a multi-layer composite structure formed by an outer sealing structure, a temperature-control sealing air layer and an inner sealing structure, wherein the outer sealing structure is formed by a light-transmitting material with a low heat transfer coefficient; the inner sealing structure is formed by a wall body; the temperature-control closed air layer is an air layer formed by the middle sealing of the outer sealing structure and the inner sealing structure; the outer sealing structure is provided with a controllable air hole communicated with the temperature control sealing air layer; a temperature control device for adjusting the temperature in the temperature control closed air layer is arranged in the temperature control closed air layer. The energy-saving principle of the invention is that the temperature of the closed air layer is controlled to be consistent with the indoor temperature, so that the indoor air and the closed air layer do not generate heat transfer, thereby maintaining the indoor temperature to be basically constant, being equivalent to achieving the heat insulation effect of the indoor air and the outdoor air, being widely applied to energy-saving reconstruction of various new buildings and old buildings and having stronger popularization and application values.
Description
Technical Field
The invention belongs to the technical field of building energy conservation, and particularly relates to a temperature-control air layer blocking type heat insulation ultra-low energy consumption outer wall structure.
Background
Most areas in China need to be warmed by heat preservation equipment in winter due to the influence of temperature factors. Because the traditional heating and air conditioning consumes a large amount of coal and electricity resources and causes serious air pollution, more new energy-saving modes gradually enter the life of people along with the rapid promotion of energy-saving and emission-reducing work and the rapid development of energy-saving construction industry in the recent years. The energy saving of the building is one of the key points of energy saving work in China, and the external heat preservation of the outer wall becomes a main product of energy saving of the building.
At present, the energy conservation of the buildings in China is mainly divided into three forms:
firstly, the heat transfer coefficient of the enclosure structure is reduced, such as thickening heat insulation materials or adopting conventional heat insulation materials such as an air composite heat insulation layer, so that the energy-saving effect of the building is achieved. However, the conventional energy-saving mode does not solve the problems of outward dissipation of indoor energy and air permeation of the outer doors and windows, and the energy consumption of the part accounts for more than 80% of the total energy consumption of heating and refrigerating.
Secondly, natural energy sources such as solar energy, a ground source heat pump and the like are adopted to reduce the use of conventional energy sources, the energy-saving mode has the advantages of large initial investment, long recovery period, short equipment service life and no obvious energy-saving effect in practice.
Thirdly, the heat insulation material with stronger heat insulation performance is adopted, so that the zero-energy-consumption building with conventional energy sources such as coal, petroleum, electric power and the like is not consumed, and the building energy source demand is changed to natural energy sources such as solar energy, wind energy, shallow geothermal energy, biomass energy and the like. However, the zero-energy-consumption building is expensive in cost and has no wide applicability.
The energy-saving structures of the above buildings can not insulate indoor air from outdoor air, and indoor heating and air conditioning refrigeration are still needed. The inventor finds that no mature energy-saving heat-insulating outer wall structure exists in the market.
Disclosure of Invention
The invention provides a temperature-control air layer blocking type heat insulation ultra-low energy consumption outer wall structure, which aims to solve the problems of energy conservation and poor heat preservation effect of the existing building wall.
The energy-saving principle of the invention is as follows:
(1) Firstly, a temperature-control air layer blocking type heat-insulating ultra-low energy consumption outer wall structure energy-saving structure comprises a light-transmitting outer sealing structure with low heat transfer coefficient, a temperature-control sealing air layer and an inner sealing structure; by controlling the temperature of the closed air layer to be consistent with the indoor temperature, the indoor air and the closed air layer do not generate heat transfer, so that the indoor temperature is kept constant, and the effect of heat insulation between the indoor air and the outdoor air is achieved.
(2) Secondly, importance is attached to the influence of solar radiation heat on the closed air layer. In winter, the temperature of the air layer is mainly increased by the temperature control device, so that the external solar radiation heat is beneficial to reducing the energy consumption of the temperature control device. In summer, the temperature of the air layer is mainly reduced by the temperature control device, and the energy consumption of the temperature control device is increased by external solar radiation, so that ventilation facilities are reasonably arranged, and the air flows to take away redundant heat in the air layer.
In order to solve the technical problems, based on the energy-saving principle, the invention adopts the following technical scheme:
the utility model provides a control temperature air bed blocking type heat insulation ultra-low energy consumption outer wall structure, includes by outer closed structure, control temperature closed air bed and interior closed structure's multilayer composite construction, wherein:
the outer sealing structure is made of a light-transmitting material with low heat transfer coefficient; the inner sealing structure is formed by a wall body; the temperature-control closed air layer is an air layer formed by the middle sealing of the outer sealing structure and the inner sealing structure;
the outer sealing structure is provided with a controllable air hole communicated with the temperature-controlled sealing air layer;
and a temperature control device for adjusting the temperature in the layer is arranged in the temperature control closed air layer.
Further, the controllable air hole comprises a controllable air vent and a controllable air supplementing hole; further, the controllable ventilation hole is positioned at the upper part of the outer sealing structure, and the controllable air supplementing hole is positioned at the lower part of the outer sealing structure.
Further, the outer sealing structure is vacuum glass, a light-transmitting film or hollow glass.
Further, the thickness of the temperature-controlled closed air layer is preferably 10cm-100cm; of course, the thickness can be increased or decreased correspondingly according to the actual situation.
Further, the inner sealing structure is a block wall, a prefabricated wallboard or a glass curtain wall.
Compared with the existing building heat-insulating outer wall, the temperature-control air layer blocking type heat-insulating ultra-low energy consumption outer wall structure has the following remarkable advantages:
1. because the air layer is small in volume and good in sealing, the indoor air and the outdoor air can be insulated by controlling the temperature of the sealed air layer to be consistent with the temperature of the indoor air only with lower cost, the energy is saved by more than 60%, and the method is easy to realize and popularize.
2. In winter, the solar radiation can be used for obtaining heat, so that the temperature control energy consumption is reduced. The ventilation equipment can be started in summer to accelerate air flow through the controllable air holes, and indoor temperature is reduced.
3. Because the closed air layer can uniformly cover each room, the indoor rooms can be uniformly cooled and heated.
4. Because of strong operability, the energy-saving building energy-saving system can be widely used for energy-saving reconstruction of various new buildings and old buildings such as public buildings, houses and the like.
According to the invention, the indoor air and the outdoor air are insulated, and the aim of indoor heat preservation is achieved by controlling the temperature of the closed air layer; meanwhile, importance is attached to the influence of solar radiation heat obtaining on the closed air layer, for example, in winter, as the temperature control of the closed air layer is mainly that the temperature control device increases the temperature of the air layer, the external solar radiation heat obtaining is beneficial to reducing the energy consumption of the temperature control device; in summer, the temperature of the air layer is mainly reduced by the temperature control device, and the energy consumption of the temperature control device is increased by external solar radiation, so that ventilation facilities are reasonably arranged, and the air flows to take away redundant heat in the air layer. The invention has simple structure and strong practicability, can realize the cancellation of indoor heating and air conditioning refrigeration, can be widely used for energy-saving reconstruction of various new buildings and old buildings, and has strong popularization and application values.
Drawings
FIG. 1 is a schematic diagram of the structure of the present invention;
FIG. 2 is a schematic diagram of the summer operation of the present invention;
FIG. 3 is a winter operation schematic diagram of the present invention;
in the figure: 1. the external sealing structure, the temperature control sealing air layer, the internal sealing structure, the temperature control device, the ground heat insulation layer, the roof heat insulation layer, the controllable ventilation holes and the controllable air supplementing holes are respectively arranged on the floor, the roof heat insulation layer and the air supplementing holes.
Detailed Description
The invention provides a temperature-control air layer blocking type heat-insulating ultralow-energy-consumption outer wall structure, which insulates indoor air from outdoor air, achieves the aim of indoor heat preservation by controlling the temperature of a closed air layer, and further describes an embodiment of the invention with reference to the accompanying drawings, but is not limited by the invention.
As shown in fig. 1, a temperature-controlled air layer blocking type heat insulation ultra-low energy consumption exterior wall structure comprises: an outer sealing structure 1, a temperature control sealing air layer 2 and an inner sealing structure 3. The outer enclosure 1 is constructed of a low heat transfer coefficient light transmissive material such as, but not limited to, vacuum glass. The outer sealing structure 1 is provided with a controllable ventilation hole 7 and a controllable air supplementing hole 8, wherein the controllable ventilation hole 7 is positioned at the upper part of the outer sealing structure 1, and the controllable air supplementing hole 8 is positioned at the lower part of the outer sealing structure 1. The temperature-control closed air layer 2 is an air layer formed by closing the middle of the outer closed structure 1 and the inner closed structure 3, the thickness of the temperature-control closed air layer 2 is 10cm-50cm, and the temperature-control device 4 is arranged on the temperature-control closed air layer. The inner closure construction 3 includes, but is not limited to, a block wall, prefabricated wall panel or glass curtain wall.
The invention consists of an outer sealing structure 1, a temperature-controlled sealing air layer 2 and an inner sealing structure 3, wherein a temperature control device 4 is arranged in the temperature-controlled sealing air layer 2, and the temperature in the temperature-controlled sealing air layer 2 is adjusted by the temperature control device 4 to keep the same with the indoor temperature, so that the indoor air and the sealing air layer do not generate heat transfer, thereby keeping the indoor temperature constant, and the effect of heat insulation between the indoor air and the outdoor air is equivalent to being achieved. The outer sealing structure 1 is made of a light-transmitting material with low heat transfer coefficient, is not easy to exchange heat with the outside, reduces heat loss, and does not influence daily illumination of a house.
Fig. 3 is a schematic diagram of the winter working principle of the present invention, the outdoor temperature is lower in winter, the ventilation opening is closed, the temperature control device 4 is required to actively heat the temperature, so that the temperature control closed air layer 2 is consistent with the indoor temperature, and meanwhile, in winter, the temperature control device 4 of the closed air layer 2 mainly increases the temperature of the air layer, so that the external solar radiation heat is favorable for reducing the energy consumption of the temperature control device.
Fig. 2 is a schematic diagram of the summer working of the present invention, in which the outdoor temperature is higher than the indoor temperature in summer, the temperature control device 4 is required to actively reduce the temperature, and the energy consumption of the temperature control device is increased by external solar radiation, so that the air flows to take away the redundant heat in the air layer by opening the controllable vent hole 7 and the controllable air supplementing hole 8, the temperature is further controlled, and the indoor temperature is ensured to be stable.
Taking a certain area as an example, the invention performs economic comparison analysis with centralized heating and air conditioning refrigeration respectively.
Sample room parameters: room area: 10m×10m; layer height: 3m;
external sealing structure (north, south) area: m=60 square meters;
heat transfer coefficient of outer seal configuration: k=0.8W/(. Square meter.k).
The energy efficiency ratio of the temperature control device is 3.5 under the consideration of a conventional air conditioner; 0.55 yuan/(KW.h) of equipment electric charge;
the heating time in winter is 120 days, and the refrigerating time in summer is 100 days.
Winter heating calculation parameters: outdoor calculated temperature t1= -7 ℃; indoor (temperature-controlled closed air layer) design temperature t2=18 ℃; the temperature control equipment needs to be started for a period of time H=16h (solar radiation can be used for heating in the daytime, and the temperature of a heating closed air layer reaches the design temperature, and is calculated according to 8H solar radiation);
summer refrigeration calculation parameters: the outdoor calculated temperature t3 = 35 ℃ (the heat obtained by irradiation of the sun on the closed air layer influences the calculated result, the heat obtained by irradiation is t3' =45 ℃, and the sun irradiation time is 8 h); indoor (closed air layer) design temperature t4=26℃.
Winter comparison:
the invention seals the air layer winter heat load:
Q=KM(t2-t1)=0.8×60×（18+7）=1200W。
power consumption in winter day:
QH/3.5=1200W×16h/3.5=5.49KW•h。
the winter cost of the user is calculated by applying the invention:
5.49kw.h×0.55 yuan/(kw.h) ×120 days= 362.34 yuan.
The energy consumption is enlarged by 50 percent by considering the actual and theoretical calculation difference
The actual cost is 362.34 yuan× (1+50%) = 543.51 yuan
At present, the central heating cost is 35 yuan/m 2, and the heating cost required by the user in winter is 35 yuan/m 2 multiplied by 100m2 = 3500 yuan.
Compared with the prior art, 2956.49 yuan can be saved.
The percent savings is up to 2956.49 +.3500×100% = 84.5%
Summer comparison:
the invention has the following hour cooling load within 8 hours of solar irradiation in daytime:
Q1=KM(t3′-t4)=0.8×60×（45-26）=912W。
the remaining 16 hours of cooling load were:
Q2=KM(t3-t4)=0.8×60×（35-26）=432W。
the power consumption per day is (8hxq1+16hxq2)/(3.5=4.06 kw.h)
The invention provides a method for paying the user in summer, which comprises the following steps:
4.06kw.h×0.55 yuan/(kw.h) ×100 days= 223.3 yuan.
The energy consumption is enlarged by 50 percent by considering the actual and theoretical calculation difference
The actual cost is 223.3 yuan× (1+50%) = 334.95 yuan
If the user adopts air-conditioning refrigeration, the air-conditioning manufacturer recommends a selection standard of 200W/square meter, the user needs to select an air-conditioner with 20KW refrigeration capacity, and the air-conditioner is also started for 8 hours per day according to the air-conditioner energy consumption ratio of 3.5 for calculation
The air conditioner used a day with a power consumption of 20 KW/3.5×8h=45.68 KW.
The summer air conditioner of the user uses the following cost:
45.68kw.h×0.55 yuan/(kw.h) ×100 days= 2512.4 yuan.
2512.4-334.95 = 2177.45 yuan can be saved compared with the method.
Percent savings up to 2177.45 ≡ 2512.4 ×100% = 86.7%
Compared with the prior art, the novel energy-saving type indoor unit has the advantages that the energy-saving effect is obviously better than that of concentrated heating and air conditioning refrigeration, the novel energy-saving type indoor unit has the advantages that the novel energy-saving type indoor unit is more economical and practical, and the more the number of single residential units is, the more obvious the economic effect is.
The invention provides a temperature-control air layer blocking type heat-insulating ultra-low energy consumption outer wall structure, which aims at the defects of the prior art and provides an outer wall energy-saving structure which can insulate indoor air from outdoor air, is more energy-saving and is more economical. And the structure is simple, the practicability is strong, compared with the existing heat-insulating outer wall, the heat-insulating outer wall has relatively great innovation and relatively strong popularization and application value, and can be widely applied to the heat-insulating reconstruction of the outer wall of various buildings.
The foregoing is merely illustrative of the present invention, and the present invention is not limited thereto, and any person skilled in the art will readily recognize that variations or substitutions are within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (1)
1. A temperature-control air layer blocking type heat insulation ultra-low energy consumption outer wall structure is characterized in that:
the multi-layer composite structure comprises an outer sealing structure, a temperature control sealing air layer and an inner sealing structure, wherein:
the outer sealing structure is made of a light-transmitting material with low heat transfer coefficient; the inner sealing structure is formed by a wall body; the temperature-control closed air layer is an air layer formed by the middle sealing of the outer sealing structure and the inner sealing structure;
the outer sealing structure is provided with a controllable air hole communicated with the temperature-controlled sealing air layer;
a temperature control device for adjusting the temperature in the temperature control closed air layer is arranged in the temperature control closed air layer;
the controllable air hole comprises a controllable air vent and a controllable air supplementing hole;
the controllable ventilation hole is positioned at the upper part of the outer sealing structure, and the controllable air supplementing hole is positioned at the lower part of the outer sealing structure;
the outer sealing structure is a vacuum glass layer, a light-transmitting film or hollow glass;
the thickness of the temperature-controlled closed air layer is 10cm-100cm;
the inner sealing structure is a block wall, a prefabricated wallboard or a glass curtain wall.
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2019
- 2019-02-13 CN CN201910111987.7A patent/CN109680816B/en active Active
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| JPH0913523A (en) * | 1995-06-28 | 1997-01-14 | Fukuvi Chem Ind Co Ltd | Building of vent construction |
| CA2321243A1 (en) * | 1999-11-18 | 2001-05-18 | Shinyo Co., Ltd. | Air cycle houses and house ventilation system |
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