A kind of solar irradiation bends down to get the mid-movable sunshading system of external window of building of heating rate
Technical field
The present invention relates to mid-movable sunshading system, the abat vent between espespecially a kind of double layer glass has the mid-movable sunshading system of external window of building that interlayer can ventilate between the radiation function that flashes back the sunlight, the double layer glass.
Background technology
China Xia Redong cryogenic region (comprising hot summer and warm winter region), because the solar radiation in summer causes building energy consumption very high, and constantly increase with global wanning, Xia Redong cryogenic region summer air-conditioning energy consumption for cooling is about more than the twice of winter heating energy consumption, mainly due to summer temperature rising and sunlight the architectural exterior-protecting construction radiant temperature is caused, particularly be subjected to the building east window of direct sunlight, window in the south and western window.Therefore at external window of building external sunshade being set is the most effective measures that reduce energy consumption of air conditioning in summer.But, inject sunlight the winter of Xia Redong cryogenic region and can reduce building heating energy consumption again, therefore, the external sunshade of exterior window setting should be movable external sunshade, the transmitance of its solar radiation in summer is more low more energy-conservation.The aluminium alloy louver curtain that transmitance and shading coefficient are lower and weaving roller shade are that multistory building adopts more external sunshade system.But in the high level of typhoon region and super highrise building, adopt this class movable external sunshade system, have certain potential safety hazard; If in design of glass lighting roof, adopt this class movable external sunshade system, can affect durability because of wind and rain, can't normally use; The building that has then has specific (special) requirements, should not adopt movable external sunshade because of outward appearance.For this reason, only have the mid-movable sunshading system of employing, namely interlayer arranges the movable sunshade curtain between two hollow glasss of exterior window, to satisfy above-mentioned safe, durable, appearance requirement.But the metal louvres curtain that the movable sunshade curtain that present mid-movable sunshade adopts is identical with common external sunshade or weaving Folding curtain, honeycomb curtain, roller shade, national standard only has do not have under the ultraviolet radiation obvious variable color, the phenomenon of fading for abat vent, and the metal louvres curtain should satisfy, and deviation of gloss requires, the adhesive power requirement.
When the above-mentioned type abat vent is used for external sunshade system, good heat insulation and heat control energy-saving effect is arranged, when but same abat vent is used for mid-shading system, than the solar radiation of external sunshade system heat is much higher, near the heat that gets of internal sunshade system, the heat-insulating and energy-saving effect of mid-shading system is undesirable.
Summary of the invention
The technical assignment of technical problem to be solved by this invention and proposition is that the defective that above-mentioned prior art exists is improved and improved, a kind of abat vent with the higher efficient that flashes back the sunlight (being reflectivity) is provided, has the mid-movable sunshading system of external window of building (comprising curtain wall and lighting roof) of interlayer ventilation function, outer thin interior thick double-layer glass, improve effect of heat insulation, reach indoor solar radiation heat to reach to reduce by exterior window, and then reduce the purpose of the summer air-conditioning energy consumption for cooling of building.
For this reason, the present invention takes following technical scheme: a kind of solar irradiation bends down to get the mid-movable sunshading system of external window of building of heating rate, comprise the outer leaf frame and be installed in inside and outside double layer glass on the outer leaf frame, place movable sunshade curtain between the double layer glass and the control device of movable sunshade curtain, it is characterized in that the outer surface of described movable sunshade curtain adopts mirror-reflection to process or be coated with reflective heat-insulation paint; Be installed in the upper and lower fluid sealant between the double layer glass and bury respectively upper and lower air chimney underground, the horizontal segment of upper and lower air chimney passes the outer wall of outer leaf frame, the mouth of pipe of the vertical section of upper air chimney down and place interlayer between the double layer glass, the mouth of pipe of the vertical section of lower air chimney up and place interlayer between the double layer glass, summer, upper and lower air chimney opening ventilated, and seal upper and lower air chimney with the pipe lid other seasons.
When existing movable external sunshade places sash outer, having outer leaf can only be the restriction of casement window, mid-movable sunshade curtain of the present invention is placed in the double layer glass middle (being interlayer) of outer leaf frame, so outer leaf without limits, it can be flat opening, can be outer pushing-type, also can be fixed.Winter and transition season, mid-abat vent be upper volume all, guarantees that indoor lighting illumination and sunlight incident make indoor intensification, reduce energy consumption; The mid-abat vent of Clear Days Summer outer leaf can put down, and blocks direct sunlight or diffusion sunlight, reduces the indoor intensification that solar irradiation causes in the hope of reaching.But the mid-shading system that adopts common abat vent is than the external sunshade system that adopts identical common abat vent, and is indoor that heat is still much higher.Among the building trade standard JG/T251-200 of the People's Republic of China (PRC) " sunshade metal louvres curtain for building ", coating performance requirement to aluminium alloys, steel sun-shading louver curtain, only have deviation of gloss, weatherability, adhesive power, impact-resistant performance requirement, do not have the index of blind outside reflectivity.Among the building trade standard JG/T255-2009 " built-in (namely mid-) sunshade hollow glass product ", more do not relate to the requirement of sunshine reflectivity.
Therefore the present invention is directed to mid-abat vent and introduce the requirement that improves the sunshine reflectivity, outer surface to the metal louvres curtain of mid-shading system adopts mirror-reflection or is coated with reflective heat-insulation paint, the mirror-reflection of the outer surface of metal louvres curtain is processed, can be that level aluminum paste coating is electroplated in polishing technology or coating technique or high reflection, form the light reflecting layer; The reflective coating of the outer surface of metal louvres curtain is processed, and can adopt light color to contain emulsion coatings or the high reflective aluminum silver paste coating of hollow ceramic bubble, brushes or sprays, and forms inferior reflection layer; Outer surface brushing reflective aluminum silver paste coating to the fabric folded curtain of mid-shading system, honeycomb curtain, roller shade forms inferior reflection layer, improves the abat vent outer surface to the reflectivity of sunshine, reduces sunlight and enters indoor transmitance; Reduce simultaneously the intensification of abat vent itself, also namely reduced the intensification of air between the double-layer glass, and then reduced and to enter indoor heat, improved effect of heat insulation, reached the purpose of saving energy consumption of air conditioning system in buildings.
Because double-layer glass hollow closed state has kept heat-insulating property and the energy-saving effect in exterior window winter when not changing in the winter time.
By improving the abat vent reflectivity, when interlayer ventilate to reduce between the double-layer glass temperature, enter indoor heat in order further to reduce solar irradiation, adjust internal and external layers of glass thickness, namely reduce glass outer thickness, increase inner layer glass thickness, namely keeping under the double layer glass gross thickness permanence condition, reduce outer thickness of hollow glass, increase the internal layer thickness of hollow glass, the thickness range of outer hollow glass is 3-5mm, and the thickness range of internal layer hollow glass is 7-9mm, and namely the internal layer hollow glass is thicker than outer hollow glass, reduced the thermal transmittance of inner layer glass, can further reduce summer and enter indoor heat.
Mid-movable sunshading system of the present invention has the outer thin interior thick characteristics of the higher efficient that flashes back the sunlight, interlayer ventilation function and double-layer glass, effectively improved effect of heat insulation, reach reduction and reached indoor solar radiation heat by exterior window, and then reduced the purpose of the summer air-conditioning energy consumption for cooling of building; Can be used for the heat insulation of external window of building, curtain wall and design of glass lighting roof, realized building energy conservation.
The invention will be further described below in conjunction with specification drawings and specific embodiments.
Description of drawings
Fig. 1 is structural representation of the present invention.
The specific embodiment
The mid-movable sunshading system of external window of building as shown in Figure 1, it is by outer leaf frame 1 and be installed in the inside and outside double layer glass on the outer leaf frame, the control device that places the movable sunshade curtain 4 between the double layer glass to reach for control movable sunshade curtain forms.
1. the reflection of abat vent lateral surface is processed:
The present invention is directed to mid-shading system and introduce the requirement that improves the sunshine reflectivity, outer surface to the metal louvres curtain of mid-shading system adopts mirror-reflection or brushing reflective heat-insulation paint technology to form the reflective insulation coating, outer surface brushing reflective aluminum silver paste coating to the fabric folded curtain of mid-shading system, honeycomb curtain, roller shade, improve the abat vent outer surface to the reflectivity of sunshine, reduce sunlight and enter indoor transmitance.
The mirror-reflection of the outer surface of metal louvres curtain is processed, and can be that level aluminum paste coating is electroplated in polishing technology or coating technique or high reflection, forms the light reflecting layer.The reflective coating of the outer surface of metal louvres curtain is processed, and can adopt light color to contain emulsion coatings or the high reflective aluminum silver paste coating of hollow ceramic bubble, brushes or sprays, and forms inferior reflection layer.Outer surface for the Folding curtain of textile material, honeycomb curtain, roller shade sprays high reflective aluminum silver paste coating, forms inferior reflection layer.
The metal louvres curtain sheet of mirror-reflection can directly adopt plating or the compacting of polishing mirror aluminum alloy band to shape, its solar reflectance can reach 86-99%, also can adopt high reflection to electroplate the brushing of level aluminum paste coating on metal louvres curtain sheet, because of its reflective light intensity, the mid-shading system of employing mirror-reflection metal louvres curtain can be used for the sunshade of architectural lighting roof, and the sunshade of the less demanding highrise building exterior window in focus ring border.
Brushing reflective coating on the metal louvres curtain sheet outer surface, can adopt light color to contain emulsion coatings or the high reflective aluminum silver paste coating of hollow ceramic bubble, because these coating and metal louvres curtain chip surface all have good adhesive property, blind sheet outer surface sunshine reflectivity is reached more than 80%, since be diffuse reflection, little for the surrounding enviroment impact.
The outer surface of the Folding curtain of textile material, honeycomb curtain, roller shade sprays high reflective aluminum silver paste coating, because aluminium-silver size coating and textile material have good caking property, can satisfy simultaneously the deformation requirements of folding, the spool of abat vent, blind sheet outer surface sunshine reflectivity is reached more than 80%, since be diffuse reflection, little for the surrounding enviroment impact.
2. the interlayer ventilation is processed between the double layer glass:
In view of Xia Redong cryogenic region (comprising hot summer and warm winter region) energy consumption of air conditioning in summer is much higher than the characteristic of winter heating energy consumption, in the winter time, interlayer keeps certain sealing between the double-layer glass, has certain heat-insulating property; In summer, interlayer can have certain ventilation between the double-layer glass, reduces the temperature of interlayer, has namely reduced the hull-skin temperature of inner layer glass, although heat-insulating property has certain decline, heat-proof quality can improve greatly, near the effect of external sunshade.Utilize the interlayer interval greater than 20 millimeters space, bury at a certain distance broken line type ventilation small tubes (internal diameter 8-10 millimeter) in the upper and lower fluid sealant 5,6 between double-layer glass underground, upper and lower air chimney 7,8 horizontal segment pass the outer wall of window sash frame, the mouth of pipe of upper air chimney 7 down and place interlayer between the double layer glass, can rainwater-proof, the mouth of pipe of lower air chimney 8 up and place interlayer between the double layer glass, summer, opening ventilated, seal with the pipe lid other seasons, keep the certain sealing of interlayer, to guarantee the heat-insulating property of exterior window.
3. adjust the thickness of double-layer glass:
Enter indoor heat in order further to reduce solar irradiation, adjust internal and external layers of glass thickness, the thickness range of outer hollow glass 3 is 3-5mm, the thickness range of internal layer hollow glass 2 is 7-9mm, namely reduce glass outer thickness, increase inner layer glass thickness, namely under glass gross thickness permanence condition, reduced the thermal transmittance of inner layer glass, can further reduce summer and enter indoor heat.