CN209941934U

CN209941934U - Vacuum heat insulation board

Info

Publication number: CN209941934U
Application number: CN201920221594.7U
Authority: CN
Inventors: 吴维慧
Original assignee: Shandong Xintai Energy Saving Polytron Technologies Inc
Current assignee: Shandong Xintai Energy Saving Polytron Technologies Inc
Priority date: 2019-02-22
Filing date: 2019-02-22
Publication date: 2020-01-14
Anticipated expiration: 2029-02-22

Abstract

The utility model discloses a vacuum insulation board, it includes core and compound choke membrane, the core is including stacking at least one deck glass fiber layer and at least one deck mineral wool board layer together, and the most inboard glass fiber layer that is of core is placed the core in compound choke membrane and compound choke membrane wraps up the core after the pressfitting completely and vacuums after form the vacuum insulation board and the convex-concave surface of the inboard surface formation irregular jut of compound choke membrane in the evacuation process and concave recess. The utility model discloses thermal-insulated effectual, the combustion performance of keeping warm reaches A2 level, has the advantage of avoiding panel to drop, increase of service life, shortening construction cycle and reduction construction cost.

Description

Vacuum heat insulation board

Technical Field

The utility model relates to a vacuum thermal insulation board.

Background

The heat-insulation decorative plate external wall heat-insulation system is composed of a heat-insulation decorative plate, bonding mortar, anchoring pieces, caulking materials and sealant, and is installed on the surface of an external wall of a building, so that the function of integrating heat insulation and decoration of the external wall is realized. The traditional heat-insulating decorative board is formed by compounding a heat-insulating material and a panel with a decorative surface, wherein the heat-insulating material mainly comprises organic heat-insulating materials such as a molded polystyrene board, an extruded polystyrene board and a rigid foam polyurethane board or inorganic heat-insulating materials such as rock wool, and the panel mainly comprises a calcium silicate board, a cement pressure board, a thin stone and the like.

The applicant discloses a vacuum heat insulation board formed by vacuumizing in previous patents, which comprises a core material and a composite air barrier film, wherein the core material is a fiber board or a mineral wool board or a light board made of powder materials, and the core material is formed into an integral vacuum heat insulation board by vacuumizing and pressing processes.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is to provide a vacuum insulation board convenient to mortar adhesion just can reach thermal-insulated heat preservation effect completely.

In order to solve the technical problem, the provided vacuum heat insulation board comprises a core material and a composite gas barrier film, and is characterized in that: the core material comprises at least one glass fiber layer and at least one mineral wool board layer which are stacked together, the innermost side of the core material is the glass fiber layer, the core material is placed in the composite air barrier film, the composite air barrier film completely wraps and presses the core material, the vacuum insulation board is formed after vacuumizing, and the outer surface of the inner side of the composite air barrier film forms the convex-concave surfaces of the irregular protruding parts and the concave parts in the vacuumizing process.

And after the core material is arranged in the cylindrical composite gas barrier film, the end part of the aluminum foil fiber cloth is turned upwards after being subjected to hot pressing to form a turning pressing strip, and the turning pressing strip is positioned between the inner surface of the metal decorative plate and the core material.

The composite gas barrier film is formed by compounding glass fiber cloth, a PA film, an aluminum foil, a PET film and a PE film which are sequentially arranged from outside to inside.

After the core material is completely wrapped by the composite gas barrier film, granular getters are put into the composite gas barrier film, and the getters are uniformly distributed in the glass fiber layer.

The core material comprises three layers, namely an inner glass fiber layer, a middle mineral wool board layer and an outer glass fiber layer from inside to outside in sequence.

The core material is provided with four layers which are sequentially an inner glass fiber layer, a middle mineral wool board layer, a middle glass fiber layer and an outer mineral wool board layer from inside to outside.

The outermost side of the core material is a mineral wool board layer, the outer surface of the mineral wool board layer is coated with an adhesive layer, and a tight bonding structure can be formed between the adhesive layer and the inner surface of the composite gas barrier film.

After the structure is adopted, the core material is adopted and completely wrapped in the composite gas barrier film, and the core material and the metal decorative plate are completely jointed through hot pressing and vacuumizing processes, so that the composite gas barrier film and the metal decorative plate are combined only by one layer of adhesive layer, the production process difficulty and the production cost are greatly reduced, the core material comprises at least one layer of glass fiber layer and at least one layer of mineral wool plate layer which are stacked together, the innermost side of the core material is the glass fiber layer, the core material is placed in the composite gas barrier film, the core material is completely wrapped and pressed by the composite gas barrier film and is vacuumized to form the vacuum heat insulation heat preservation plate, and the outer surface of the inner side of the composite gas barrier film forms the convex-concave surfaces of the irregular convex part and the concave part in the vacuumizing process, therefore, the mortar is coated on the inner side, the contact area between the mortar and the vacuum heat insulation heat preservation plate, the integral firmness of the vacuum heat insulation board is greatly improved, the construction process is simple, and the construction efficiency is high.

To sum up, the utility model discloses thermal-insulated effectual, the combustion performance of keeping warm reaches A2 level, has the advantage of avoiding panel to drop, increase of service life, shortening construction cycle and reduction construction cost.

Drawings

The invention will be further described with reference to the accompanying drawings:

fig. 1 is a schematic view of a manufacturing process according to an embodiment of the present invention;

FIG. 2 is a schematic sectional view taken along line A-A of FIG. 1;

FIG. 3 is a schematic structural view taken along line B-B in FIG. 1;

FIG. 4 is a schematic structural view of a core material prior to fabrication of the embodiment of FIG. 1;

fig. 5 is a schematic structural diagram of another embodiment of the present invention.

Detailed Description

Referring to fig. 1 to 4, the present invention provides an embodiment of a vacuum insulation board, which includes a composite gas barrier film 1 and a core material 2, wherein the core material is placed in the composite gas barrier film, the core material is completely wrapped and pressed by the composite gas barrier film, and then vacuumized to form a vacuum insulation board, a getter is filled in the core material or on the surface of the core material, the core material and the getter can be filled in the composite gas barrier film 1, the getter can be a non-evaporable getter or a composite getter, such as a zircaloy 16 getter, a zircaloy getter or a composite getter composed of a barium-aluminum alloy and a zircaloy 16, and the getter is used for obtaining or maintaining a vacuum state in the composite gas barrier; the composite air barrier film is formed by compounding glass fiber cloth, a PA film, an aluminum foil, a PET film and a PE film, the compounding process and the structure are the prior art, the core material 2 comprises at least one glass fiber layer 21 and at least one mineral wool board layer 22 which are stacked together, the glass fiber layer 21 is a laminated plate made of superfine glass fiber yarns, namely, a plurality of superfine glass fiber yarns are laminated to form the laminated plate, so that gaps among the superfine glass fiber yarns are not uniform, the getter can be uniformly scattered in the gaps among the superfine glass fiber yarns, two layers are arranged in the embodiment, the innermost side of the core material is the glass fiber layer 21, the outer side of the core material is the mineral wool board layer 22, the inner side is a part of the whole vacuum heat insulation board coated with mortar, the outer surface of the inner side of the composite air barrier film forms irregular convex-concave surfaces of a protruding part and a concave part in the vacuumizing process, and the glass fiber is in a laminated structure when purchased, therefore, the mineral wool board can be stacked in a mineral wool board layer when being put into the composite gas barrier film, and when the vacuum pumping is carried out, the gaps among the superfine glass fiber yarns become 0, so that the convex-concave surface is formed, and the mineral wool board has certain tensile strength and flexural strength, and the compressive strength is not less than 0.15 MPa. In this embodiment, the outside of core is the mineral wool sheet layer, and the surface coating on mineral wool sheet layer has the viscose layer and can form inseparable bonding structure with the internal surface of compound choke membrane at the viscose layer, and above-mentioned viscose layer does not show in the drawing, and the viscose layer adopts the compound adhesive that the normal atmospheric temperature bondd, and its specific structure and model are prior art, and the benefit of this kind of bonding structure lies in, even if the vacuum became invalid, also can not appear delaminating phenomenon between the surface on mineral wool sheet layer and the compound choke membrane, has strengthened the utility model discloses a durability improves its thermal-insulated effect that keeps warm.

Referring to fig. 1, the vacuum insulation panel is formed by placing the core material 2 in the composite gas barrier film 1, for example, in the state of the a-diagram of fig. 2, hot-pressing the two opposite longitudinal sides of the composite gas barrier film 1 with a device to form the longitudinal pressing strips 11 arranged longitudinally and to form the composite gas barrier film into a cylindrical shape, for example, in the state of the b-diagram of fig. 2, placing the core material in the cylindrical composite gas barrier film, hot-pressing the ends of the cylindrical composite gas barrier film, and then folding the ends upwards to form the folding pressing strips 12, the folding pressing strips 12 will be folded to the outer side surface (upper surface in the figure) of the composite gas barrier film, pressing the longitudinal pressing strips 11 downwards to the surface of the composite gas barrier film while folding upwards, to form the state of the c-diagram of fig. 2, and performing a vacuum process during the process, in such a manner that the entire core material is completely wrapped in the composite gas barrier film, thereby forming an integral unit that no longer requires an adhesive to bond it. In addition, the structure after the hot pressing enables the whole composite gas barrier film to form a sealed pocket, and even if the vacuum fails, the delamination phenomenon can be avoided.

Referring to fig. 5, the present invention provides another embodiment, the basic structure of which is the same as the above embodiment, and the difference is that the core material is provided with four layers, the core material is sequentially an inner glass fiber layer, a middle mineral wool board layer, a middle glass fiber layer and an outer mineral wool board layer from inside to outside, i.e. the glass fiber layer and the mineral wool board layer are arranged at an interval, so as to further enhance the heat insulation effect of the whole vacuum heat insulation board. Of course, the present invention may also have other embodiments, for example, the core material has three layers, and the three layers are an inner glass fiber layer, a middle mineral wool board layer, and an outer glass fiber layer, etc. from inside to outside in sequence, and the detailed description is omitted here.

Referring to fig. 1 to 4, in the manufacturing process of the vacuum insulation panel, the core material 2 is first placed into a dryer for drying at a temperature of 180-.

The utility model discloses can also have other embodiments, other technical scheme that form in the record of claim no longer carry out the repeated description one by one, the utility model discloses do not receive the restriction of above-mentioned embodiment, based on the equivalent change and the part replacement of above-mentioned embodiment are all in the utility model discloses a protection within range.

Claims

1. The utility model provides a vacuum insulation board, includes core and compound choke membrane, characterized by: the core material comprises at least one glass fiber layer and at least one mineral wool board layer which are stacked together, the innermost side of the core material is the glass fiber layer, the core material is placed in the composite air barrier film, the composite air barrier film completely wraps and presses the core material, the vacuum insulation board is formed after vacuumizing, and the outer surface of the inner side of the composite air barrier film forms the convex-concave surfaces of the irregular protruding parts and the concave parts in the vacuumizing process.

2. The vacuum insulation panel according to claim 1, wherein: and after the core material is arranged in the cylindrical composite gas barrier film, the end part of the aluminum foil fiber cloth is turned upwards after hot pressing to form a turning pressing strip, and the turning pressing strip is positioned between the inner surface of the metal decorative plate and the core material.

3. The vacuum insulation panel according to claim 1, wherein: the composite gas barrier film is formed by compounding glass fiber cloth, a PA film, an aluminum foil, a PET film and a PE film which are sequentially arranged from outside to inside.

4. A vacuum insulation panel according to any one of claims 1 to 3, wherein: after the core material is completely wrapped by the composite gas barrier film, granular getters are put into the composite gas barrier film, and the getters are uniformly distributed in the glass fiber layer.

5. A vacuum insulation panel according to any one of claims 1 to 3, wherein: the core material comprises three layers, namely an inner glass fiber layer, a middle mineral wool board layer and an outer glass fiber layer from inside to outside in sequence.

6. A vacuum insulation panel according to any one of claims 1 to 3, wherein: the core material is provided with four layers which are sequentially an inner glass fiber layer, a middle mineral wool board layer, a middle glass fiber layer and an outer mineral wool board layer from inside to outside.

7. A vacuum insulation panel according to any one of claims 1 to 3, wherein: the outermost side of the core material is a mineral wool board layer, the outer surface of the mineral wool board layer is coated with an adhesive layer, and a tight bonding structure can be formed between the adhesive layer and the inner surface of the composite gas barrier film.