CN211850124U

CN211850124U - PEC wall

Info

Publication number: CN211850124U
Application number: CN201921700240.7U
Authority: CN
Inventors: 王金彪
Original assignee: Taizhou Yanconcrete Construction Technology Co ltd; Shanghai Electric Research Concrete Building Science And Technology Group Co ltd
Current assignee: Taizhou Yanconcrete Construction Technology Co ltd; Shanghai Electric Research Concrete Building Science And Technology Group Co ltd
Priority date: 2019-10-10
Filing date: 2019-10-10
Publication date: 2020-11-03
Anticipated expiration: 2029-10-10

Abstract

The utility model discloses a PEC wall relates to energy-conserving wall body's technical field, including polylith SPF board, polylith SPF board splices each other and forms the wall body skeleton, the wall body skeleton is equipped with places the space, it is equipped with the cotton layer of heat preservation in the space to place, the cotton layer of heat preservation and SPF board butt, the fixed OSB board that is equipped with on the cotton layer side of heat preservation, the fixed waterproof ventilated membrane that is equipped with in one side of the cotton layer of heat preservation is dorsad to the OSB board, waterproof ventilated membrane deviates from one side of OSB board and fixes and be equipped with the exterior finishing board, be equipped with the water strip between exterior finishing board and the waterproof ventilated membrane, water strip length direction and direction of height syntropy set up and set firmly on waterproof ventilated membrane, the fixed fire. The wall has the excellent effects of low heat transfer coefficient, high air tightness, strong heat insulation performance, low cold bridge effect, less noise pollution and field dust emission, light dead weight and the like.

Description

PEC wall

Technical Field

The utility model relates to a technical field of energy-conserving wall body, more specifically say, it relates to a PEC wall.

Background

The prefabricated concrete wall panel is a reinforced concrete plate type member for building assembly, which is processed in a prefabrication factory or a building site, and is called a wall panel or a wall panel for short. The prefabricated concrete wallboard is adopted to build the assembled large-plate building, so that the factory and mechanical construction degree can be improved, the field wet operation is reduced, the field labor is saved, the seasonal influence is overcome, and the building construction period is shortened.

The prior Chinese utility model with publication number CN208396066U discloses a novel self-heat-insulation PEC structure outer wall, which comprises a PEC wall; the PEC wall is externally coated with a rock wool plate; an ALC plate is arranged outside the rock wool plate; the ALC board is fixedly connected with the PEC wall through a plurality of expansion type anchor bolts; the expansion anchor bolt penetrates through the rock wool plate; and polymer waterproof cement mortar is arranged outside the ALC board.

However, the above structural exterior wall components include cement mortar concrete materials, but cause many defects to the wall body due to the characteristics of the concrete materials, such as: the self-weight is heavy, the number of cold bridges is large, the building energy consumption is high, the modulization and standardization degree are relatively low, and the like, and improvement is urgently needed.

SUMMERY OF THE UTILITY MODEL

To this problem in the practical application, the utility model aims to provide a PEC wall, concrete scheme is as follows:

the utility model provides a PEC wall, includes polylith SPF board, polylith SPF board splices each other and forms wall body skeleton, wall body skeleton is equipped with places the space, it is equipped with the cotton layer of heat preservation in the space to place, the cotton layer of heat preservation with SPF board butt, the fixed OSB board that is equipped with on the cotton layer side of heat preservation, the OSB board is kept away from the fixed waterproof ventilated membrane that is equipped with in one side on the cotton layer of heat preservation, waterproof ventilated membrane deviates from the fixed exterior finishing board that is equipped with in one side of OSB board, exterior finishing board with be equipped with the water strip between the waterproof ventilated membrane, water strip length direction and direction of height syntropy set up and set firmly in on the waterproof ventilated membrane, the cotton layer of heat preservation deviates from the fixed fire-resistant gypsum board that is equipped.

Through the technical scheme, the PEC wall structure is integrally set to be a combination of a wood structure and a steel structure, the heat transfer coefficient of the wood structure is lower than that of concrete, and the heat transfer coefficient of the brickwork body is 4.2 times that of wood, so that the heat transfer coefficient of the wall is effectively reduced. Through setting up waterproof ventilated membrane, set up waterproof ventilated membrane laminating on the OSB board, effectively ensured in the construction, the number of times index N50 of taking a breath of building can reach 1.5, improves the gas tightness of wall. Through setting up the heated board, effectively improved the thermal insulation performance of wall. And the low heat transfer coefficient of the PEC wall and the thermal inertia energy of the wood are combined, so that the cold bridge effect in the whole building is effectively reduced, the use efficiency of heating and cooling equipment is improved, and the annual energy consumption of the heating and cooling equipment is further reduced. Meanwhile, the PEC wall designed by the scheme can effectively reduce the using amount of concrete and water on the building site, reduce the generation amount of solid garbage and sewage, effectively control noise pollution and reduce on-site dust.

Preferably, a plurality of the SPF boards are fixedly connected by screws.

Through above-mentioned technical scheme, utilize the screw to make the SPF board connect more firmly, but the wall body skeleton is whole to be formed by the concatenation of polylith SPF board, can design the wall body skeleton of different shape size structures according to different mounted position and construction scheme to improve PEC wall's suitability.

Preferably, the edge of the waterproof breathable film is coated to the end part of the heat-preservation cotton layer.

Through above-mentioned technical scheme, if meet the rain, the rainwater drips from top to bottom along the direction of height, has soaked the cotton layer of heat preservation from the cotton layer top of heat preservation to, easily moist in south air, through wrapping up waterproof ventilated membrane in the cotton layer surface of heat preservation, avoid the cotton layer of heat preservation to meet the water and wet and weaken the thermal insulation performance of self.

Preferably, wear to be equipped with the flashing board on the exterior finish board, the flashing board sets up along direction of height downward sloping, flashing board lateral buckling laminate in waterproof ventilated membrane deviates from one side of OSB board.

Through the technical scheme, the flashing plate is utilized so as to drain rainwater downwards away from the PEC wall along the height direction, and the drainage function of the PEC wall is enhanced by combining the water guiding strips.

Preferably, be equipped with the polylith on the outer veneer the flashing board, the water flowing strip sets up adjacent between the flashing board and with the flashing board butt.

Through the technical scheme, the flashing plate and the water guiding strip form a plate layer which is attached to the waterproof breathable film, the integral drainage and waterproof performance of the PEC wall is enhanced, and water drops or water is prevented from permeating into the PEC wall from a gap between the flashing plate and the water guiding strip.

Preferably, the thickness of the fire-resistant gypsum board is set to 13-17 mm.

Preferably, the thickness of the heat preservation cotton layer is set to be 130-150 mm.

Preferably, the thickness of the OSB plate is set to 7.5-11.5 mm.

Preferably, the thickness of the water-repellent strip is set to be 13-19 mm.

Preferably, the thickness of the outer facing plate is set to be 9-30 mm.

Compared with the prior art, the beneficial effects of the utility model are as follows:

(1) the PEC wall structure is integrally set to be a combination of a wood structure and a reinforced concrete structure, the heat transfer coefficient of the wood structure is lower than that of concrete, and the heat transfer coefficient of a brickwork body is 4.2 times that of wood, so that the heat transfer coefficient of the wall is effectively reduced;

(2) by arranging the waterproof breathable film, the waterproof breathable film is arranged on the OSB plate in a fitting manner, so that the ventilation frequency index N50 of a building can reach 1.5 in the building construction, and the air tightness of the wall is improved;

(3) through setting up the heated board, effectively improved the thermal insulation performance of wall. In addition, the low heat transfer coefficient of the PEC wall and the thermal inertia energy of the wood are combined, so that the cold bridge effect in the whole building is effectively reduced, the use efficiency of heating and cooling equipment is improved, and the annual energy consumption of the heating and cooling equipment is further reduced;

(4) the PEC wall designed by the scheme can effectively reduce the using amount of concrete and water in a building site, reduce the generation amount of solid waste and sewage, effectively control noise pollution and reduce site dust;

(5) because wooden structure weight is lighter, can effectively reduce the holistic weight of wall, the constructor ligature construction of being convenient for effectively saves the time limit for a project.

Drawings

FIG. 1 is an overall schematic view of a PEC wall;

fig. 2 is an exploded schematic view of a PEC wall.

Reference numerals: 1. an SPF board; 2. a wall skeleton; 3. a placement space; 4. a heat insulation cotton layer; 5. an OSB board; 6. a waterproof breathable film; 7. an exterior veneer; 8. water-guiding strips; 9. a fire resistant gypsum board; 10. flashing board.

Detailed Description

The present invention will be described in further detail with reference to the following examples and drawings, but the embodiments of the present invention are not limited thereto.

As shown in fig. 1 and 2, a PEC wall comprises a plurality of SPF plates 1 in a long plate shape, wherein four SPF plates 1 are fixedly connected with each other by screws to form a wall skeleton 2 in a rectangular frame shape (only two SPF plates 1 on opposite sides are shown in fig. 2), a hollow part in the middle of the wall skeleton 2 forms a placing space 3 for installing an insulating cotton layer 4, and the insulating cotton layer 4 is filled and installed in the placing space 3 to abut against the SPF plates 1. In the embodiment, the thickness of the heat insulation cotton layer 4 is preferably set to be 140mm, and the SPF board 1 and the heat insulation cotton layer 4 are set to be the same in thickness.

The side of the heat preservation cotton layer 4 close to the outdoor is provided with an OSB plate 5 through screw fixation, and in the embodiment, the thickness of the OSB plate 5 is preferably set to be 9.5 mm. One side of the OSB plate 5 departing from the heat preservation cotton layer 4 is pasted with a waterproof breathable film 6 through glue, and the thickness of the waterproof breathable film 6 is set to be 0.25 mm. Wherein, the edge of the waterproof breathable film 6 is coated to the end part of the heat preservation cotton layer 4. Meanwhile, the same-direction water-guiding strips 8 are arranged on one side of the waterproof breathable film 6, which is far away from the OSB plate 5, along the height direction. Preferably, the thickness of the water-repellent strip 8 is set to 15 mm.

An outer decorative board 7 is laid on one side of the water-proof strip 8, which deviates from the water-proof breathable film 6, so that the overall attractiveness of the wall body is improved, the water-proof strip 8 is arranged between the outer decorative board 7 and the water-proof breathable film 6, and preferably, the thickness of the outer decorative board 7 is set to be 10 mm. Wherein, a plurality of recesses have been seted up along width direction on the exterior finish board 7, and flashing board 10 is worn to be equipped with by the recess internal fixation, and flashing board 10 deviates from the one end of water strip 8 along the direction of height downward sloping so that the rainwater is discharged along the direction that deviates from the PEC wall. Meanwhile, one end of the flashing 10 adjacent to the water-following strip 8 is disposed in parallel with the water-following strip 8, so that the flashing 10 is integrally formed in a V-shape having an angle of more than 90 degrees but less than 180 degrees. Preferably, the flashing board 10 is close to the cotton layer 4 one side of heat preservation and is adjacent lug setting, and the water guiding strip 8 sets up between adjacent lug and with flashing board 10 butt.

Further, a fireproof gypsum board 9 is installed on one side of the heat preservation cotton layer 4 close to the indoor space (i.e. the side of the heat preservation cotton layer 4 far away from the OSB board 5), and the thickness of the fireproof gypsum board 9 is preferably set to be 15 mm.

The PEC wall structure is integrally set to be a combination of a wood structure and a steel structure, the heat transfer coefficient of the wood structure is lower than that of concrete, and the heat transfer coefficient of a brickwork body is 4.2 times that of wood, so that the heat transfer coefficient of the wall is effectively reduced. Through setting up waterproof ventilated membrane 6, set up waterproof ventilated membrane 6 laminating on OSB board 5, effectively ensured in the construction, the number of times index N50 of taking a breath of building can reach 1.5, improves the gas tightness of wall. Through setting up the heated board, effectively improved the thermal insulation performance of wall. And the low heat transfer coefficient of the PEC wall and the thermal inertia energy of the wood are combined, so that the cold bridge effect in the whole building is effectively reduced, the use efficiency of heating and cooling equipment is improved, and the annual energy consumption of the heating and cooling equipment is further reduced. Meanwhile, the PEC wall designed by the scheme can effectively reduce the using amount of concrete and water on the building site, reduce the generation amount of solid garbage and sewage, effectively control noise pollution and reduce on-site dust. Meanwhile, the weight of the wood structure is light, so that the overall weight of the wall can be effectively reduced, binding construction by constructors is facilitated, and the construction period is effectively shortened.

It is above only the utility model discloses a preferred embodiment, the utility model discloses a scope of protection does not only confine above-mentioned embodiment, the all belongs to the utility model discloses a technical scheme under the thinking all belongs to the utility model discloses a scope of protection. It should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.

Claims

1. The PEC wall is characterized by comprising a plurality of SPF plates (1) and a plurality of SPF plates (1) which are spliced with each other to form a wall framework (2), wherein the wall framework (2) is provided with a placing space (3), a heat-insulating cotton layer (4) is arranged in the placing space (3), the heat-insulating cotton layer (4) is abutted against the SPF plates (1), an OSB plate (5) is fixedly arranged on one side surface of the heat-insulating cotton layer (4), a waterproof breathable film (6) is fixedly arranged on one side of the OSB plate (5) deviating from the heat-insulating cotton layer (4), an outer decorative panel (7) is fixedly arranged on one side of the waterproof breathable film (6) deviating from the OSB plate (5), a water guiding strip (8) is arranged between the outer decorative panel (7) and the waterproof breathable film (6), and the length direction and the height direction of the water guiding strip (8) are arranged in the same direction and fixedly arranged on the waterproof breathable film (6), one side of the heat-insulating cotton layer (4) departing from the OSB board (5) is fixedly provided with a fireproof gypsum board (9).

2. The PEC wall of claim 1, wherein a plurality of SPF plates (1) are fixedly connected by screws.

3. The PEC wall of claim 1, wherein the waterproof breathable membrane (6) is wrapped around the edge to the end of the insulating cotton layer (4).

4. The PEC wall according to claim 1, wherein a flashing plate (10) is arranged on the exterior decorative panel (7) in a penetrating manner, the flashing plate (10) is arranged in a downward inclination along a height direction, and one side of the flashing plate (10) is bent and attached to one side of the waterproof and breathable membrane (6) facing away from the OSB panel (5).

5. The PEC wall according to claim 4, wherein the exterior facing panel (7) is provided with a plurality of flashing panels (10), the flashing strips (8) being disposed between adjacent flashing panels (10) and abutting the flashing panels (10).

6. The PEC wall of claim 1, wherein the thickness of the fire-resistant gypsum board (9) is set to 13-17 mm.

7. The PEC wall of claim 1, wherein the insulating cotton layer (4) is provided with a thickness of 130-150 mm.

8. The PEC wall of claim 1, wherein the OSB panel (5) is provided with a thickness of 7.5-11.5 mm.

9. The PEC wall of claim 1, wherein the thickness of the flashing (8) is set to 13-19 mm.

10. The PEC wall of claim 1, wherein the thickness of the exterior facing sheet (7) is set to 9-30 mm.