CN215759601U - Large-span air film ultra-low temperature environment heat insulation device - Google Patents

Abstract

The utility model discloses a large-span air film ultra-low temperature environment heat insulation device, wherein the heat insulation device comprises an air film and a heat insulation paste layer, and the edge of the air film is sealed on a base body to define a building space; the heat insulation paste layer is located in the building space and is pasted on the inner wall of the air film through the adhesive. The large-span gas film ultra-low temperature environment heat insulation device provided by the embodiment of the utility model has good heat insulation and preservation effects, is particularly suitable for ultra-low temperature environments such as a refrigeration house, a ski field and the like, meets the requirements of the heat insulation and preservation effects in the environments, and reduces the energy consumption and the operation cost. In addition, the service life is long, and the structure is simple.

Description

Large-span air film ultra-low temperature environment heat insulation device

Technical Field

The utility model relates to an air film building, in particular to a large-span air film ultralow-temperature environment heat insulation device.

Background

The air film building refers to a building structure system which uses a special building film material as a shell and is provided with a set of intelligent electromechanical equipment to provide positive pressure of air in the air film building so as to support a building main body.

The air film building is mostly applied to scenes such as stadiums, warehouses, industrial plants, cold storages, ski resorts and the like, wherein when the air film building is applied to ultralow temperature environments such as the cold storages, the ski resorts and the like, the requirement on the heat preservation and heat insulation performance of an air film is high, for example, the temperature of the cold storages needs to be maintained at 18 ℃ below zero or lower, the temperature of the ski resorts needs to be maintained at 5 ℃ below zero, under the ultralow temperature environments, the heat preservation and heat insulation performance of the traditional method is poor, the energy needed for maintaining the temperature is extremely high, for example, the electric energy consumed by one cold storage per day needs tens of thousands of degrees, and the operation cost is too high. In order to popularize and apply the industry, the creation of a gas film with high heat insulation performance is always the direction of technical attack of the technical technicians in the industry.

Referring to fig. 1 to 2, in the related art, an air film insulation structure is disclosed, in which a plurality of air pillows 11 'are disposed on an inner wall of an air film 10', and insulation material 12 'is filled in the air pillows 11', and in the air film insulation structure, a position between two adjacent air pillows 11 'cannot be covered by the insulation material 12', so that a cold bridge phenomenon is easily formed at a position between two adjacent air pillows 11 'due to a temperature difference between the inside and the outside of the air film 10', and the cold bridge phenomenon is an important factor of high energy consumption. In addition, because the sheet-shaped thermal insulation material 12 ' needs to be inserted into the air pillow 11 ' in an inflated state of the air pillow 11 ' when the thermal insulation material 12 ' is filled, the thermal insulation material 12 ' usually cannot completely fill the air pillow 11 ' due to difficult construction factors, and the positions of the two sides of the thermal insulation material 12 ' which are not filled in the air pillow will also increase power consumption, and the thermal insulation effect is poor, so that the thermal insulation requirement in an ultra-low temperature environment is difficult to meet.

SUMMERY OF THE UTILITY MODEL

The present invention is directed to solving, at least to some extent, one of the technical problems in the related art. Therefore, the utility model aims to provide a large-span gas film ultralow-temperature environment heat insulation device.

The utility model provides a large-span air film ultra-low temperature environment heat insulation device, which comprises:

the edge of the air film is sealed on the substrate to define a building space;

the flexible heat-insulation adhesive material layer is adhered to the inner wall or the outer wall of the air film through an adhesive;

the flexible heat insulation sticking layer comprises a plurality of flexible heat insulation sheets, and the flexible heat insulation sheets are sequentially stuck and fixed on the inner wall of the air film through an adhesive in a preset direction; and a splicing seam is arranged between every two adjacent flexible heat insulation sheets and is filled with a joint filling adhesive.

As a further improvement of the utility model, still include a plurality of sealed curtains, it is a plurality of sealed curtain sets up along horizontal or vertical interval, every sealed curtain with inject between the flexible adiabatic laminating layer and aerify the chamber, and every sealed curtain covers an adjacent two rows piece seam between the flexible adiabatic sheet is followed piece seam extends.

As a further improvement of the present invention, the sealing curtain has opposite first and second edges, the first edge is bonded to two adjacent rows of one of the flexible heat insulating sheets, and the second edge is bonded to two adjacent rows of the other of the flexible heat insulating sheets.

As a further improvement of the utility model, the splicing seam is a step-shaped splicing seam.

As a further improvement of the utility model, the splicing seams on two adjacent rows of flexible heat-insulating sheets are arranged in a staggered manner.

As a further improvement of the utility model, the extending direction of the air inflation cavity is consistent with that of the splicing seam, and the air inflation cavity is filled with inert gas.

As a further improvement of the utility model, the gas film device further comprises a steel cable net, wherein the steel cable net is bound outside the gas film, and the lower peripheral edge of the steel cable net is fixed on the base body.

As a further improvement of the utility model, still include the ground heat insulation layer, the ground heat insulation layer lays subaerial in the building space, the edge of ground heat insulation layer is followed the surface extension of base member, and with flexible adiabatic laminating layer seamless connection.

As a further improvement of the utility model, the splicing seam is covered by self-adhesive heat preservation adhesive tape.

As a further improvement of the utility model, the flexible heat-insulating adhesive tape is arranged between the gas film and the protective film.

Advantageous effects

According to the large-span air film ultra-low temperature environment heat insulation device provided by the embodiment of the utility model, after the air film is inflated, the flexible heat insulation adhesive layer is adhered to the inner wall of the air film, and can uniformly cover the inner wall of the air film, and the flexible heat insulation adhesive layer has good heat insulation performance and low heat conductivity coefficient, so that the problems that the heat insulation material is not completely filled and the heat insulation material is lost between two adjacent air pillows due to the fact that the air pillow structure is arranged on the inner wall of the air film in the related technology are solved, the good heat insulation effect is ensured, the large-span air film ultra-low temperature environment heat insulation device is particularly suitable for ultra-low temperature environments such as a refrigeration house and a ski resort, the heat insulation effect requirement under the environment is met, and the energy consumption and the operation cost are reduced. In addition, the flexible heat insulation paste layer is positioned on the inner wall of the air film and isolated from the external environment, and the flexible heat insulation paste layer has good heat insulation effect, long service life and simple structure. Furthermore, the flexible heat insulation material layer is made of flexible materials, and because the internal pressure of the air film is not constant and constant, the internal pressure can be increased or decreased along with the change of the external climate conditions, the air film can contract or expand under different internal pressures, and also can generate lateral displacement deformation in typhoon climate, the flexible heat insulation material layer made of the flexible materials can deform along with the deformation of the air film due to the property of extension deformation, and therefore, the problems of falling, cracking, damage and the like can not be generated.

Utilize the step patchwork seam X10 that first overlap joint portion 111 and second overlap joint portion 112 overlap joint formed, on the one hand, when can guaranteeing to connect between two adjacent thermal-insulated heat preservation diaphragms, area of contact is bigger, when the joint filling adhesive fills, it is more firm reliable to connect, on the other hand, when gas film 10 inflation, even relative motion distance is great between two adjacent flexible heat insulation sheet 11, patchwork seam X10 can not fracture completely, therefore, the holistic tensile strength of flexible heat insulation flitch layer has been improved, guarantee that adiabatic effect is more reliable.

Additional aspects and advantages of the utility model will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the utility model.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.

FIG. 1 is a sectional view of a related art air film insulation structure;

FIG. 2 is an enlarged view of a portion of FIG. 1 at A;

FIG. 3 is a cross-sectional view of one embodiment of the large-span gas film ultra-low temperature environment thermal insulation apparatus of the present invention;

FIGS. 4a to 4b are top views of 7 tiling modes of flexible heat-insulating sheets in the large-span air film ultra-low temperature environment heat-insulating device of the present invention;

FIG. 5 is a partial enlarged view at B in FIG. 3;

FIG. 6 is an enlarged partial view of another embodiment shown at B in FIG. 3;

FIG. 7 is a partial enlarged view of a self-adhesive heat-insulating tape added to a splicing seam in the large-span air film ultra-low temperature environment heat-insulating device of the present invention;

FIG. 8 is a cross-sectional view of another embodiment of the large span gas film ultra-low temperature environment thermal insulation apparatus of the present invention;

FIG. 9 is an enlarged partial view of one embodiment at C of FIG. 3;

fig. 10 is a schematic structural view of another embodiment of the present invention, in which the edge of the air film 10 is fixed to the substrate 14 by pre-buried aluminum groove extrusion sealing.

Reference numerals:

the related technology comprises the following steps:

10', a gas film;

11', an air pillow;

12', a heat insulating material;

the application:

10. a gas film;

p10, building space;

11. a flexible insulating sheet;

x10, splicing and sewing;

111. a first lap joint portion;

112. a second lap joint portion;

12. a steel cord;

13. a sealing curtain;

131. a first edge;

132. a second edge;

p13, inflation lumen;

14. a substrate;

15. pressing a plate;

16. pre-burying a rod;

17. locking the nut;

18. a ground heat insulating layer;

19. an aluminum card slot member;

20. anticorrosive wood;

21. a protective film;

22. self-adhesive heat preservation sticky tape.

The implementation, functional features and advantages of the objects of the present invention will be further explained with reference to the accompanying drawings.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary and intended to be illustrative of the present invention and should not be construed as limiting the present invention, and all other embodiments that can be obtained by one skilled in the art based on the embodiments of the present invention without inventive efforts shall fall within the scope of protection of the present invention.

In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "circumferential," "radial," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the present invention and to simplify the description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be considered limiting of the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.

In the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In the present invention, unless otherwise expressly stated or limited, "above" or "below" a first feature means that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact with each other via another feature therebetween. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

The large-span air film ultra-low temperature environment heat insulation device and the processing technology thereof according to the embodiment of the utility model are described in detail below with reference to the attached drawings.

Referring to fig. 3 to 10, the large-span air film ultra-low temperature environment insulation apparatus provided by the embodiment of the utility model includes an air film 10 and a flexible insulation patch layer.

Specifically, the edges of the air film 10 are sealed to the substrate 14 to define an architectural space P10. The ground is preformed with a base 14, and the base 14 can be formed by pouring concrete or can be a counterweight object.

The flexible heat insulation flitch layer is located in building space P10, just the subsides of flexible heat insulation flitch layer are established the inner wall or the outer wall of air film 10, preferred inner wall, the subsides of flexible heat insulation flitch layer are established when on the inner wall of air film 10, reduce the heat exchange between air film 10 and the external environment through the heat exchange of flexible heat insulation flitch layer.

The flexible heat-insulating adhesive layer can be made of flexible heat-insulating materials with low heat conductivity coefficient, such as flexible rubber-plastic heat-insulating materials and the like, and is light in weight, flexible materials are flexible and can be bent by elasticity, construction in a sticking mode is convenient, and in addition, the heat conductivity coefficient is low, and the heat-insulating effect is good.

According to the large-span air film ultra-low temperature environment heat insulation device provided by the embodiment of the utility model, after the air film is inflated, the flexible heat insulation adhesive layer is adhered to the inner wall of the air film, and can uniformly cover the inner wall of the air film, and the flexible heat insulation adhesive layer has good heat insulation performance and low heat conductivity coefficient, so that the problems that the heat insulation material is not completely filled and the heat insulation material is lost between two adjacent air pillows due to the fact that the air pillow structure is arranged on the inner wall of the air film in the related technology are solved, the good heat insulation effect is ensured, the large-span air film ultra-low temperature environment heat insulation device is particularly suitable for ultra-low temperature environments such as a refrigeration house and a ski resort, the heat insulation effect requirement under the environment is met, and the energy consumption and the operation cost are reduced. In addition, the flexible heat insulation paste layer is positioned on the inner wall of the air film and isolated from the external environment, and the flexible heat insulation paste layer has good heat insulation effect, long service life and simple structure. Further, because the internal pressure of the air film is not constant, the internal pressure can be increased or decreased along with the change of the external climate conditions, the air film 10 can contract or expand under different internal pressures, and can also generate lateral displacement deformation in typhoon weather, and the flexible heat insulation material layer can deform along with the deformation of the air film 10 due to the expansion deformation performance, so that the problems of falling, cracking, damage and the like can not be generated.

Referring to fig. 3, in some embodiments of the present invention, a steel cable net is further included, the steel cable net is bound outside the air film 10, and the lower periphery of the steel cable net is fixed on the base 14.

In this embodiment, a steel cable net may be additionally disposed outside the single-layer air film 10, the air film 10 is covered by the steel cable net, and the steel cable net has a binding effect on the air film 10, so as to improve the tensile strength of the air film 10, so that the air film 10 can be applied to large-span air film 10 buildings, for example, large-span air film 10 buildings such as a refrigerator.

It should be noted that the steel cable net generally comprises a plurality of criss-cross steel cables 12, the steel cables 12 cover the outer wall of the air film 10, the lower ends of the steel cables 12 are fixed to the base 14, and the steel cable net formed by the steel cables 12 can provide tension in the longitudinal direction and the transverse direction, thereby improving the tensile strength of the air film 10 in the longitudinal direction and the transverse direction.

Referring to fig. 3 to 4a to 4g, in one embodiment of the present invention, the flexible heat insulation patch layer includes a plurality of flexible heat insulation sheets 11, and the plurality of flexible heat insulation sheets 11 are sequentially adhered and fixed on the inner wall of the air film by an adhesive in a predetermined direction. Preferably, the size of each flexible heat insulation paste layer is as follows: the length is 2 meters to 5 meters, and the width is 0.5 meters to 2 meters, so, through piecing together in proper order, make the inner wall of air film 10 evenly covered by flexible thermal insulation sheet 11 completely, and, also, convenient in the construction.

It should be noted that the tiling direction and the tiling rule of the plurality of flexible heat-insulating sheets 11 can be freely selected as required, for example, the flexible heat-insulating sheets can be sequentially tiled in the longitudinal direction and the transverse direction, arranged side by side in multiple rows, and the like, and the flexible heat-insulating sheets with shapes can be cut as required at irregular positions such as three-dimensional arched surfaces and corners, and arranged in irregular rows, as shown in fig. 4a to 4g, 7 different tiling modes are shown.

Because the height and the form of the air film 10 can change when the air pressure of the air film 10 changes, at the moment, the air film 10 can be pulled in the transverse direction and the longitudinal direction, the flexible heat insulation sheets 11 are spliced in the longitudinal direction and/or the transverse direction, the flexible heat insulation sheets 11 can be bonded with the air film 10 more firmly, particularly to the arc-shaped curved surface part, in addition, when the air film 10 is stressed, the flexible heat insulation sheets 11 can extend and retract along with the deformation of the air film, and the problems that the flexible heat insulation sheets 11 fall off, break and the like are prevented. In addition, the flexible heat insulation sheet 11 is generally made of flexible heat insulation material, such as flexible foam rubber plastic heat insulation material with a closed-cell structure, which has good elasticity and 180-degree bending property, does not break or bend, has low heat conductivity coefficient (lambda is less than or equal to 0.034W/m.K) and excellent fireproof performance (B1 grade), is applied at a temperature range of-50 ℃ to 105 ℃, is easy to install, is safe and environment-friendly, does not absorb water, and is mildew-proof and antibacterial.

Advantageously, between two adjacent flexible insulating sheets 11 there is a patchwork X10, said patchwork X10 being filled by caulking glue. On one hand, the abutted seams X10 between two adjacent flexible heat-insulating sheets 11 are filled and sealed by using the joint mixture, so that the flexible heat-insulating attached material layer forms a whole without gaps, the heat-insulating effect is better, on the other hand, the joint mixture generally has a certain expansion coefficient, and the joint mixture is not easy to crack when the gas film 10 is stressed transversely and/or longitudinally, so that the two flexible heat-insulating sheets 11 are ensured to be connected reliably, and the flexible heat-insulating sheets 11 are not easy to break.

Referring to fig. 4a to 4b, in one embodiment of the utility model, a plurality of said flexible insulating sheets 11 are arranged in a plurality of rows on said air film; each row of flexible heat insulation sheets 11 is formed by sequentially splicing a plurality of flexible heat insulation sheets 11 along one direction in the longitudinal direction and the transverse direction, a plurality of rows of flexible heat insulation sheets 11 are sequentially spliced along the other direction in the longitudinal direction and the transverse direction, and splicing seams X10 on two adjacent rows of flexible heat insulation sheets 11 are arranged in a staggered mode.

That is, the plurality of flexible heat insulation sheets 11 are sequentially tiled in one of the longitudinal direction and the transverse direction to form a row of flexible heat insulation sheets 11, and then the plurality of rows of flexible heat insulation sheets 11 are sequentially tiled in the other of the longitudinal direction and the transverse direction, for example, the plurality of flexible heat insulation sheets 11 in the same row are sequentially tiled in the longitudinal direction, and the plurality of rows of flexible heat insulation sheets 11 are sequentially tiled in the transverse direction, so that the heat insulation and preservation material layer can be tiled and completely covers the outer wall of the air film 10. Further, the patchwork seams X10 on two adjacent rows of flexible insulating sheets 11 are arranged offset. The splicing seams X10 can be dispersed at different positions, and the tensile property is improved. It is to be understood that the tiling direction of the flexible heat-insulating sheet 11 is not limited to the transverse or longitudinal tiling described in the above embodiments, and any other tiling direction may be adopted, and the tiling direction of the flexible heat-insulating sheet 11 is not limited to the present application.

Furthermore, the patchwork X10 between two adjacent flexible insulating sheets 11 may be of different shapes, for example, a "one-line" patchwork X10 (as shown in fig. 5), a "Z" or a stepped patchwork X10 (as shown in fig. 6).

Referring to fig. 6, in one embodiment of the present invention, a first overlapping portion 111 is formed along an extending projection of a splicing edge of one of two adjacent flexible heat-insulating sheets 11, a second overlapping portion 112 is formed along an extending projection of a splicing edge of the other of two adjacent flexible heat-insulating sheets 11, and the first overlapping portion 111 overlaps the second overlapping portion 112 and forms a zigzag splicing seam X10.

In this embodiment, utilize "Z" font piece together seam X10 that first overlap joint portion 111 and second overlap joint portion 112 looks overlap joint formed, on the one hand, when can guaranteeing to connect between two adjacent thermal-insulated heat preservation diaphragms, area of contact is bigger, when the joint mixture fills, it is more firm reliable to connect, on the other hand, when gas film 10 expands, even relative motion distance is great between two adjacent flexible adiabatic sheets 11, piece together seam X10 can not fracture completely, therefore, the holistic tensile properties of flexible adiabatic laminating layer has been improved, it is more reliable to guarantee adiabatic effect.

Referring to fig. 3, in one embodiment of the present invention, the large-span air film ultra-low temperature environment insulation apparatus further comprises a ground insulation layer 18, wherein the ground insulation layer 18 is laid on the ground of P10 in the building space, and the edge of the ground insulation layer 18 extends along the surface of the substrate 14 and is seamlessly connected with the flexible insulation coating layer.

In this embodiment, the ground heat insulating layer 18 extends upward from the surface of the base 14, and the lower periphery of the flexible heat insulating sticker layer is seamlessly connected to the portion of the ground heat insulating layer 18 extending upward, for example, by bonding with an adhesive, so that the building space P10 of the integral air film is completely wrapped by the heat insulating material (the flexible heat insulating sticker layer and the ground heat insulating layer 18), and the joint does not have a gap, thereby avoiding a cold bridge phenomenon that may occur and improving the heat insulating effect.

Referring to fig. 7 to 8, in some embodiments of the present invention, a plurality of sealing curtains 13 are further included, a plurality of the sealing curtains 13 are arranged at intervals along a transverse direction or a longitudinal direction, an inflation cavity P13 is defined between each sealing curtain 13 and the thermal insulation patch layer, each sealing curtain 13 covers a splicing seam X10 between two adjacent rows of the flexible thermal insulation sheets 11 and extends along the splicing seam X10, and the inflation cavity P13 is adapted to be inflated with inert gas.

That is, a patchwork X10 is formed between any adjacent two rows of the flexible heat insulating sheets 11 in each row of the flexible heat insulating sheets 11, and the patchwork X10 extends in a predetermined direction, for example, when a plurality of rows of the flexible heat insulating sheets 11 are arranged side by side in the lateral direction, a patchwork X10 formed between adjacent two rows of the flexible heat insulating sheets 11 extends in the longitudinal direction. The number of the sealing curtains 13 is equal to that of the splicing seams X10 formed among the rows of the flexible heat-insulating sheets 11, the sealing curtains correspond to one another one by one, each sealing curtain 13 is connected to the heat-insulating and heat-preserving material layer in a sealing mode to form a closed inflation cavity P13, the corresponding splicing seam X10 is located in the inflation cavity P13, the extension directions of the inflation cavity P13 and the splicing seams X10 are consistent, the splicing seams X10 are sealed in the inflation cavity P13, and inert gas can be filled in the inflation cavity P13.

In this embodiment, on the one hand, seal through sealed curtain 13 in piece joint X10 department, can ensure that the connection sealing effect of piece joint X10 department is better, improves thermal-insulated heat preservation effect. On the other hand, as mentioned above, in the use of the air film 10 in building, the air film 10 may be subjected to height and form changes, such as air pressure changes inside the air film 10, and the air film 10 is subjected to tension in the transverse direction and the longitudinal direction, in which case, the adjacent two rows of flexible heat insulating sheets 11 are also subjected to tension. Although in the foregoing embodiments, the filling of the joint adhesive in the patched joint X10 and the compression property of the thermal insulation material itself are adopted, so that the problem of cracking of the patched joint X10 can be effectively prevented to a certain extent, after long-term use, the flexible thermal insulation sheet 11 is aged, the patched joint X10 still has the possibility of cracking, and after cracking, the thermal insulation effect is reduced, and by arranging the sealing curtain 13 at the patched joint X10, even in the case of cracking of the patched joint X10, because the patched joint X10 is sealed by the sealing curtain 13 and the inflation cavity P13 inside the patched joint X10 is filled with inert gas, the good thermal insulation effect can still be maintained, and the reliability and durability of the thermal insulation effect of the gas film 10 building are improved.

Referring to fig. 8, in an embodiment of the present invention, the sealing curtain 13 has a first edge 131 and a second edge 132 opposite to each other, the first edge 131 is adhered to one of the two adjacent rows of the flexible heat insulation sheets 11, and the second edge 132 is adhered to the other of the two adjacent rows of the flexible heat insulation sheets 11, so that, on one hand, the first edge 131 and the second edge 132 are respectively adhered and fixed to the two adjacent flexible heat insulation sheets 11, which facilitates the construction of the sealing curtain 13 and can achieve a good sealing effect, and on the other hand, the first edge 131 and the second edge 132 are respectively adhered and fixed to the two adjacent flexible heat insulation sheets 11 to form a bridging structure, and when the two adjacent flexible heat insulation sheets 11 are subjected to an excessive tensile force, the sealing curtain 13 can enhance the connection strength and prevent cracking and other problems.

Optionally, the splicing seams are covered by the self-adhesive heat-insulating tape 22 (see fig. 7), so that the splicing seams X10 are protected by the self-adhesive heat-insulating tape 22, which can improve the connection strength of the splicing positions and the heat insulation effect of the splicing positions.

In one embodiment of the present invention, the air film 10 is further provided with a door opening, and the door opening is provided with a heat insulation curtain, so that the heat insulation curtain is used for preventing cold air at the position of the door opening from leaking outwards.

Referring to fig. 9, in one embodiment of the utility model, the edge of the gas film 10 is press sealed to the substrate 14 by a press assembly.

That is to say, the edge of the air film 10 is pressed and sealed on the substrate 14 by a pressing component, for example, in the example of fig. 9, the edge of the air film 10 is pressed and sealed on the top surface of the substrate 14 by the pressing component, so that the air film 10 can form a seal with the substrate 14, and by the pressing action of the pressing component on the edge of the air film 10, a better sealing effect can be achieved, and the air tightness of the air film 10 is improved.

Illustratively, the pressing components each comprise a pressing plate 15, a pre-embedded rod 16 and a locking nut 17, wherein the pressing plate 15 is positioned above the edge of the air film 10; the lower end of an embedded rod 16 is embedded in the base body 14, the upper end of the embedded rod 16 extends out of the base body 14 and sequentially penetrates through the edge of the air film 10 and the pressing plate 15, and a locking nut 17 is in threaded fit with the upper end of the embedded rod 16 and applies pressure to the pressing plate 15 to press and seal the edge of the air film 10 on the base body 14.

Referring to fig. 10, in another embodiment of the present invention, the edge of the air film 10 is fixed to the substrate 14 by pre-buried aluminum groove extrusion sealing. Illustratively, an aluminum clamping groove piece 19 is embedded in the base body in advance, an opening is formed in the top of the aluminum clamping groove piece 19, the lower edge of the air film 10 is placed in the aluminum clamping groove piece 19, a corrosion-proof wood 20 is inserted into the opening, the lower edge of the air film 10 is clamped in the aluminum clamping groove piece 19 through the corrosion-proof wood 20, and the lower edge of the air film 10 is fixed with the base body 14 in a sealing mode.

Referring to fig. 8, in some embodiments of the present invention, the large-span gas film ultra-low temperature environment insulation apparatus further includes a protective film 21, the protective film 21 is located inside the gas film 10, and the lower edge of the protective film is hermetically fixed on the substrate 14, and the flexible thermal insulation plaster layer is located between the gas film 10 and the protective film 21.

In this embodiment, set up protection film 21 in the inboard of air film 10, both can protect flexible adiabatic paster to avoid damaging, also can keep apart indoor humid air, avoid producing mould, also avoid the moisture absorption to aggravate, influence structure safety, still conveniently carry out interior decoration beautification on protection film 21.

The embodiment of the utility model also provides a large-span air film 10 ultra-low temperature environment heat insulation construction process, which comprises the following steps:

the edges of the air film 10 are first sealingly secured to the substrate 14 and define an architectural space P10.

And sequentially splicing a plurality of flexible heat-insulating sheet materials 11 on the inner wall of the air film 10 along a preset direction under the state that the building space P10 is inflated and the preset air pressure is maintained, so that a flexible heat-insulating material splicing layer is formed on the inner wall of the air film 10.

In one embodiment of the present invention, the sequentially tiling of the plurality of flexible heat insulating sheets 11 on the inner wall of the gas film 10 in a predetermined direction includes:

the inner wall of the gas film 10 is first purified.

And then coating a membrane surface treating agent base layer on the inner wall of the air film 10, and coating an adhesive layer on the membrane surface treating agent base layer.

Finally, the flexible heat insulation sheet 11 is spread on the inner wall of the air film 10, so that the flexible heat insulation sheet 11 is adhered and fixed to the inner wall of the air film 10 through the adhesive layer.

The inner wall surface of the gas film 10 is free of impurities such as dust through purification treatment, the film surface treating agent base layer is convenient to brush, the binding force of the adhesive layer can be improved through the film surface treating agent base layer, the bonded flexible insulating sheet is not prone to falling off, and the bonding is firmer and more reliable.

According to the large-span air film ultra-low temperature environment heat insulation process provided by the embodiment of the utility model, after the air film is inflated, the flexible heat insulation adhesive layer is adhered to the inner wall of the air film, and can uniformly cover the inner wall of the air film, and the flexible heat insulation adhesive layer has good heat insulation performance and low heat conductivity coefficient, so that the problems that the heat insulation material is not completely filled and the heat insulation material is lost between two adjacent air pillows due to the fact that the air pillow structure is arranged on the inner wall of the air film in the related technology are solved, the good heat insulation effect is ensured, the process is particularly suitable for ultra-low temperature environments such as a refrigeration house and a ski resort, the heat insulation effect requirement in the environment is met, and the energy consumption and the operation cost are reduced. In addition, the flexible heat insulation paste layer is positioned on the inner wall of the air film and isolated from the external environment, and the flexible heat insulation paste layer has good heat insulation effect, long service life and simple structure. Furthermore, the flexible heat insulation adhesive material layer is made of flexible materials, and because the internal pressure of the air film is not constant and constant, the internal pressure can be increased or decreased along with the change of the external climate conditions, the air film 10 can contract or expand under different internal pressures, and also can generate lateral displacement deformation in typhoon climate, therefore, the flexible heat insulation material layer made of the flexible materials can deform along with the deformation of the air film 10 due to the performance of extension deformation, and the problems of falling, cracking, damage and the like can not be generated.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the utility model. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.

The above description is only a preferred embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications and equivalents of the technical solutions of the present invention, which are made by using the contents of the present specification and the accompanying drawings, or directly/indirectly applied to other related technical fields, are included in the scope of the present invention.

Claims (10)

1. The utility model provides a large-span gas film ultra-low temperature environment heat-insulating device which characterized in that includes:

the edge of the air film is sealed on the substrate to define a building space;

the flexible heat-insulation adhesive material layer is adhered to the inner wall or the outer wall of the air film through an adhesive;

the flexible heat insulation material sticking layer comprises a plurality of flexible heat insulation sheets, and the flexible heat insulation sheets are sequentially stuck and fixed on the inner wall of the air film through an adhesive in a preset direction; and a splicing seam is arranged between every two adjacent flexible heat insulation sheets and is filled with a joint filling adhesive.

2. The large-span gas film ultra-low temperature environment insulation device according to claim 1, further comprising a plurality of sealing curtains, wherein a plurality of sealing curtains are arranged at intervals along the transverse direction or the longitudinal direction, an air inflation cavity is defined between each sealing curtain and the flexible insulation material layer, and each sealing curtain covers and extends along the splicing seam between two adjacent rows of the flexible insulation sheets.

3. The large-span gas film ultra-low temperature environmental insulation apparatus of claim 2, wherein the sealing curtain has opposing first and second edges, the first edge being bonded to one of the two adjacent rows of the flexible insulation sheets and the second edge being bonded to the other of the two adjacent rows of the flexible insulation sheets.

4. The large-span gas film ultra-low temperature environment insulation apparatus of claim 1, wherein the patched seam is a step-shaped patched seam.

5. The large-span gas film ultra-low temperature environment insulation device according to claim 1, wherein the patchwork seams on two adjacent rows of flexible insulation sheets are arranged in a staggered manner.

6. The large-span gas film ultra-low temperature environment thermal insulation device according to claim 1, wherein the extension direction of the inflation cavity is consistent with that of the splicing seam, and the inflation cavity is filled with inert gas.

7. The large-span gas film ultra-low temperature environmental insulation apparatus according to claim 1, further comprising a wire mesh, said wire mesh being bound outside said gas film, a lower peripheral edge of said wire mesh being fixed to said base.

8. The large-span gas film ultra-low temperature environment insulation apparatus of claim 1, further comprising a ground insulation layer laid on the ground within the building space, edges of the ground insulation layer extending along the surface of the substrate and seamlessly connecting with the flexible insulation precoat.

9. The large-span gas film ultra-low temperature environmental insulation apparatus of claim 1, wherein the patchwork seams are covered by self-adhesive thermal tape.

10. The large-span gas film ultra-low temperature environment insulation device according to claim 1, further comprising a protection film, wherein the protection film is located inside the gas film, the lower edge of the protection film is fixed on the substrate in a sealing mode, and the flexible heat insulation paste layer is located between the gas film and the protection film.

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