CN219622027U

CN219622027U - Vertical dislocation sandwich heat preservation wall suitable for assembled passive room

Info

Publication number: CN219622027U
Application number: CN202321329895.4U
Authority: CN
Inventors: 刘建飞; 李振兴; 张建斌; 丁亚静; 杜志杰
Original assignee: China Institute of Building Standard Design and Research Co Ltd
Current assignee: China Institute of Building Standard Design and Research Co Ltd
Priority date: 2023-05-30
Filing date: 2023-05-30
Publication date: 2023-09-01
Anticipated expiration: 2033-05-30

Abstract

The utility model discloses a vertical misplacement sandwich heat-insulating wall body suitable for an assembled passive room, which comprises two sandwich heat-insulating walls arranged side by side and a cast-in-situ section arranged in a vertical joint between the two sandwich heat-insulating walls, wherein each sandwich heat-insulating wall comprises an outer leaf plate, a heat-insulating layer and an inner leaf plate. The heat preservation layers of the two sandwich heat preservation walls are spliced to form a vertical splice; the outer blades are spliced to form a vertical tongue-and-groove joint; the edge joint is staggered with the tongue-and-groove joint. The heat insulating layer is respectively provided with a waterproof steam barrier film and a waterproof steam permeable film at the inner side and the outer side of the position corresponding to the cast-in-situ section; the waterproof vapor-permeable membranes of the two sandwich heat-insulating walls are mutually overlapped, the waterproof vapor-barrier membranes of the two sandwich heat-insulating walls are mutually overlapped, and the overlapped part of the waterproof vapor-permeable membranes and the overlapped part of the waterproof vapor-barrier membranes cover the splice joint of the heat-insulating layers. The utility model improves the heat insulation and heat preservation performance and air tightness performance of the assembled sandwich heat preservation wallboard by improving the structures such as tongue-and-groove joints, vertical seam staggering and the like so as to meet the performance requirements of heat insulation, air tightness and the like of a passive room.

Description

Vertical dislocation sandwich heat preservation wall suitable for assembled passive room

Technical Field

The utility model relates to the technical field of assembled buildings, in particular to a heat insulation technology of an assembled passive room, and specifically relates to a vertical misplacement sandwich heat insulation wall body suitable for the assembled passive room.

Background

The sandwich heat-insulating wall board is a wall body commonly used in an assembled building and consists of an inner leaf board, a heat-insulating layer and an outer leaf board. In the construction process of the assembled building, vertical joints of every two walls are connected with cast-in-situ sections, the common practice is that the length of a heat insulation layer and an outer leaf plate of the sandwich heat insulation wallboard is longer than that of an inner leaf plate, and the middle vertical joints are plugged by filling various glue materials in later period. The traditional assembled sandwich heat-insulating wallboard only considers the requirement of the original assembled building in the prefabrication process, the outer leaf plate is not provided with a vertical tongue-and-groove when the vertical joint is spliced, the heat-insulating layer and the spliced joint of the outer leaf plate are positioned at the same position, and after the assembly is completed, the heat-insulating layer and the spliced joint are filled with various rubber materials, but the requirements of strict heat insulation and heat preservation and good air tightness of a passive room are still difficult to meet. The vertical joint is provided with a cast-in-situ hidden post, so that wet operation is realized, and various unpredictable factors in the construction process can lead to the heat transfer coefficient of the heat insulation layer to be increased so that the heat insulation material at the vertical joint is invalid. And if the joint between the heat insulation layer and the outer blade plate is damaged at the same position, the probability is greatly increased.

Disclosure of Invention

The utility model aims to provide a vertical misplacement sandwich heat-insulating wall body suitable for an assembled passive room, and aims to improve the structure of the assembled sandwich heat-insulating wall board so as to meet the performance indexes such as heat insulation, air tightness and the like of the passive room. The utility model aims at realizing the following technical scheme:

the vertical misplacement sandwich heat-insulating wall body comprises two sandwich heat-insulating walls which are arranged side by side and a cast-in-situ section which is arranged between the two sandwich heat-insulating walls, wherein each sandwich heat-insulating wall is formed by sequentially superposing an outer leaf plate, a heat-insulating layer and an inner leaf plate from outside to inside, and the inner leaf plates of the two sandwich heat-insulating walls are recessed towards two sides from other parts of the sandwich heat-insulating walls, so that a vertical seam between the two sandwich heat-insulating walls is formed, and the cast-in-situ section is arranged in the vertical seam, and two sides of the cast-in-situ section are respectively connected with the ends of the inner leaf plates of the two sandwich heat-insulating walls; the heat preservation layers of the two sandwich heat preservation walls are spliced and connected, and a vertical splice is formed at the joint; the outer blades of the two sandwich heat-insulating walls are spliced and connected, and a vertical tongue-and-groove seam is formed at the joint; the edge joints of the heat preservation layer are staggered with the tongue-and-groove joints of the outer leaf plates, and the staggered distance is 190 mm-210 mm; the heat-insulating layers of the two sandwich heat-insulating walls are respectively provided with a waterproof steam-isolating film and a waterproof steam-permeable film at the inner side and the outer side of the position corresponding to the cast-in-situ section; and the waterproof vapor-permeable membranes of the two sandwich heat-insulating walls are mutually overlapped; the waterproof steam-isolating films of the two sandwich heat-insulating walls are mutually overlapped; the overlap joint of the waterproof vapor-permeable membrane and the overlap joint of the waterproof vapor-permeable membrane cover the seam of the heat preservation layer, so that the double-layer waterproof vapor-permeable membrane and the double-layer waterproof vapor-permeable membrane are respectively arranged at the inner side and the outer side of the seam of the heat preservation layer.

The tongue-and-groove seams of the outer blades are vertical seam seams with non-linear cross sections, wherein the two edges of the outer blades are matched and spliced.

The shape of the tongue-and-groove is further optimized, and the cross section of the tongue-and-groove of the outer blade is any one of S-shaped, wave-shaped, tooth-shaped, fold-line-shaped and mortise-and-tenon-shaped.

For further optimization of the laying of the waterproof and vapor-permeable membrane, the left end and the right end of the waterproof and vapor-permeable membrane respectively exceed the joints of the cast-in-situ section and the left end and the right end of the inner blade plate by 300mm.

For further optimization of the waterproof and vapor-permeable membrane laying, the left end and the right end of the waterproof and vapor-permeable membrane respectively exceed the joints of the cast-in-situ section and the left end and the right end of the inner blade plate by 300mm.

Further, the thickness of the inner leaf plate is 200mm.

The utility model has the beneficial effects that:

1) The vertical seam between the heat preservation layers of every two adjacent sandwich heat preservation walls and the tongue-and-groove seam between the outer leaf plates are arranged in a staggered mode, the vertical through seam between every two adjacent sandwich heat preservation walls in the prior art is adjusted to be a staggered seam, and the two adjacent sandwich heat preservation walls are shielded and protected mutually, so that adverse factors such as bleeding penetrating into the heat preservation layers and subsequent glue material immersing or cracking during construction can be effectively relieved, and the fault tolerance of the performance index of the finished passive house is improved.

2) The shape of the vertical tongue-and-groove structure of the outer blade is conducive to forming a closed outer heat-insulating whole.

3) The vertical seam between the heat insulating layers is provided with a double-layer steam-isolating waterproof film and a double-layer steam-transmitting film, which is beneficial to preventing bleeding and subsequent glue from entering the heat insulating material during construction.

4) The staggered heat-insulating layer can provide certain construction self-comparison inspection capability, and the construction effect taking the continuous and smooth heat-insulating layer as an index is inspected.

The utility model will be described in further detail with reference to the drawings and the detailed description.

Drawings

FIG. 1 is a schematic cross-sectional structure (top view) of the present utility model;

fig. 2 is a schematic partial structure (section a) of fig. 1.

Reference numerals:

1. an outer leaf; 2. waterproof vapor-permeable membrane; 3. a heat preservation layer; 4. waterproof vapor barrier film; 5. an inner leaf; 6. a cast-in-place section; 1-1, tongue-and-groove joint of the outer blade; 3-3, splicing seams of the heat preservation layer.

Detailed Description

Example 1

As shown in fig. 1, the vertical misplacement sandwich heat-insulating wall suitable for the assembled passive house comprises two sandwich heat-insulating walls arranged side by side and a cast-in-situ section 6 arranged between the two sandwich heat-insulating walls, wherein each sandwich heat-insulating wall is formed by sequentially superposing an outer leaf plate 1, a heat-insulating layer 3 and an inner leaf plate 5 from outside to inside. Wherein the outer blade plate and the inner blade plate are made of concrete, and the waterproof vapor-permeable membrane and the waterproof vapor-barrier membrane are made of different polymer materials polymerized by tetrafluoroethylene. The heat insulating layer is made of common inorganic and organic materials and composite materials. The thickness of the inner leaf plate is 200mm.

The inner leaves 5 of the two sandwich heat-insulating walls are recessed towards two sides from other parts of the sandwich heat-insulating walls, so that a vertical seam between the two sandwich heat-insulating walls is formed, and the cast-in-situ section 6 is arranged in the vertical seam, and two sides of the cast-in-situ section are respectively connected with the ends of the inner leaves 5 of the two sandwich heat-insulating walls.

As shown in fig. 2, the heat insulation layers 3 of the two sandwich heat insulation walls are spliced and connected, and a vertical splice is formed at the joint; the outer blades 1 of the two sandwich heat-insulating walls are spliced and connected, and a vertical tongue-and-groove seam is formed at the joint; the edge joint 3-3 of the heat preservation layer is staggered with the tongue-and-groove joint 1-1 of the outer blade plate, and the staggered distance in the embodiment is 200mm.

As shown in fig. 2, the heat-insulating layers 3 of the two sandwich heat-insulating walls are respectively provided with a waterproof steam-isolating film 4 and a waterproof steam-permeable film 2 at the inner side and the outer side of the position corresponding to the cast-in-situ section 6; and the waterproof vapor-permeable membranes 2 of the two sandwich heat-insulating walls are mutually overlapped; the waterproof steam barrier films 4 of the two sandwich heat-insulating walls are mutually overlapped; the overlap joint part of the waterproof vapor-permeable membrane and the overlap joint part of the waterproof vapor-permeable membrane cover the seam 3-3 of the heat preservation layer, so that the inner side and the outer side of the seam 3-3 of the heat preservation layer are respectively provided with a double-layer waterproof vapor-permeable membrane 4 and a double-layer waterproof vapor-permeable membrane 2. In order to ensure the effect, the cross section of the tongue-and-groove joint 1-1 of the outer blade is any one of S-shaped, wave-shaped, fold line-shaped, tooth-shaped and mortise-and-tenon-shaped. The rabbet 1-1 is internally provided with a PE rod, and weather-proof glue is used for glue spraying treatment. In this embodiment, the shape of a fold line. The arrangement can prevent mortar and bleeding caused by wet operation of the hidden column from entering the gap of the heat insulation layer, and external dislocation can prevent water vapor and the like in various external environments from directly entering the heat insulation gap.

In the embodiment, the left and right ends of the waterproof steam barrier 4 respectively exceed the joints of the cast-in-situ section 6 and the left and right ends of the inner blade 5 by 300mm. The left and right ends of the waterproof and vapor-permeable membrane 2 respectively exceed the joints of the cast-in-situ section 6 and the left and right ends of the inner blade 5 by 300mm.

The above examples are only a part of the present utility model and not all the embodiments of the present utility model are covered, and those skilled in the art can obtain more embodiments without any inventive effort on the basis of the above examples and the accompanying drawings, and therefore, all embodiments obtained without any inventive effort are included in the scope of the present utility model.

Claims

1. The utility model provides a vertical dislocation sandwich heat preservation wall body suitable for assembled passive room, includes two sandwich heat preservation walls that set up side by side and sets up cast-in-place section (6) between two sandwich heat preservation walls, and every sandwich heat preservation wall is by outer leaf (1), heat preservation (3) and interior leaf (5) are by outer to interior stack in proper order and constitute its characterized in that:

the inner leaves (5) of the two sandwich heat-insulating walls are recessed towards two sides from other parts of the sandwich heat-insulating walls, so that a vertical seam between the two sandwich heat-insulating walls is formed, and the cast-in-situ section (6) is arranged in the vertical seam, and two sides of the cast-in-situ section are respectively connected with the ends of the inner leaves (5) of the two sandwich heat-insulating walls;

the heat preservation layers (3) of the two sandwich heat preservation walls are spliced and connected, and a vertical splice is formed at the joint; the outer blades (1) of the two sandwich heat-insulating walls are spliced and connected, and a vertical tongue-and-groove seam is formed at the joint; the edge joint (3-3) of the heat preservation layer is staggered with the tongue-and-groove joint (1-1) of the outer blade plate, and the staggered distance is 190 mm-210 mm;

the heat insulation layers (3) of the two sandwich heat insulation walls are respectively provided with a waterproof steam barrier film (4) and a waterproof steam permeable film (2) at the inner side and the outer side of the position corresponding to the cast-in-situ section (6); and the waterproof vapor-permeable membranes (2) of the two sandwich heat-insulating walls are mutually overlapped; the waterproof steam-isolating films (4) of the two sandwich heat-insulating walls are mutually overlapped; the lap joint part of the waterproof vapor-permeable membrane and the lap joint part of the waterproof vapor-permeable membrane cover the seam (3-3) of the heat preservation layer, so that the inner side and the outer side of the seam (3-3) of the heat preservation layer are respectively provided with a double-layer waterproof vapor-permeable membrane (4) and a double-layer waterproof vapor-permeable membrane (2).

2. The vertical dislocated sandwich insulation wall suitable for prefabricated passive rooms of claim 1, wherein: the tongue-and-groove joint (1-1) of the outer blade is a vertical joint with a non-linear cross section formed by matching and splicing the edges of the two outer blades.

3. The vertical dislocated sandwich insulation wall suitable for prefabricated passive rooms of claim 2, wherein: the cross section of the tongue-and-groove joint (1-1) of the outer blade is any one of S-shaped, wave-shaped, tooth-shaped, fold line-shaped and mortise-tenon shaped.

4. The vertical dislocated sandwich insulation wall suitable for prefabricated passive rooms of claim 1, wherein: the left and right ends of the waterproof steam barrier film (4) respectively exceed the joints of the left and right ends of the rear cast-in-situ section (6) and the inner blade plate (5) by 300mm.

5. The vertical dislocated sandwich insulation wall suitable for prefabricated passive rooms of claim 1, wherein: the left and right ends of the waterproof vapor-permeable membrane (2) respectively exceed the joints of the cast-in-situ section (6) and the left and right ends of the inner blade plate (5) by 300mm.

6. The vertical dislocated sandwich insulation wall suitable for prefabricated passive rooms of claim 1, wherein: the thickness of the inner blade plate (5) is 200mm.