CN204491855U - The anti-heat bridge structure of a kind of building wall pipe - Google Patents

Abstract

The utility model discloses a heat-proof bridge structure of building wall-through pipes, which belongs to the technical field of building wall-through-pipe heat bridge construction. The structural composition is that the building wall pipe is covered with a casing, and the annular area at the end of the casing and the building wall pipe is sealed with a columnar sealing strip. The gap between the casing and the annular hole in the wall is filled and sealed with thermal insulation materials. The facades on both sides of the base wall of the pipe outlet hole are sealed with glass fiber alkali-resistant mesh cloth and crack-resistant mortar. The outer wall of the building wall pipe is made of double-layer staggered seam insulation panels and the outer decorative protective surface. The building wall sleeve The pipe opening at the end of the boundary contact area between the insulating plate at the extending end of the pipe and the outer decorative protective surface is sealed with waterproof tape. Four sealing technical measures, staggered seam thermal insulation joint structure, clear structure structure, which is conducive to the treatment and construction of thermal bridge joints of building through-wall pipes, improves the standardization of thermal bridge construction, and improves the energy saving and sealing of building walls Effect.

Description

A heat-resistant bridge structure of building through-wall pipes

technical field

The utility model relates to a thermal bridge construction technology of building wall-through pipes, in particular to a heat-proof bridge structure of building wall-through pipes.

Background technique

Reinforced concrete beams and columns embedded in building walls, concrete ribs or metal embedded parts in external walls and roof panels, metal sleeves of wall-penetrating pipes contacting walls, joints between external walls and windows, external overhangs The connection between the outdoor platform and the building structure, etc., all have structural and structural technical requirements for thermal bridge treatment in thermal insulation and energy-saving construction. Thermal bridge is the weak link of building thermal insulation and energy saving. If it is not handled or handled properly, it will cause energy loss and waste to energy saving and thermal insulation. It belongs to the weak link of energy-saving construction technology. In the process of thermal insulation and energy-saving design, it is necessary to check and calculate the temperature of the inner surface of the thermal bridge to prevent condensation in the room. At present, there are still unrelated problems in the thermal bridge treatment, such as thermal bridge integration calculation, thermal bridge structure structure, thermal bridge construction technology, etc., which bring constraints to the progress of energy-saving technology and the construction management of low-energy passive building energy-saving technology.

Utility model content

The utility model provides an anti-thermal bridge structure of building wall pipes, which aims to solve the technical problem of thermal bridge defect structure between building wall pipes and walls, and meet the technical problems of thermal bridge construction of building walls.

The utility model adopts the following technical solutions: a heat-proof bridge structure of building wall-piercing pipes, including building wall-piercing pipes passing through the wall; the building wall-piercing pipes are covered with sleeves; The gaps are filled with thermal insulation fillers; anti-crack mortar and glass fiber alkali-resistant grid cloth are installed on the openings of the building through-wall pipes and the facades on both sides of the wall; staggered joint insulation panels are fixed on the outside of the wall A waterproof adhesive tape is fixed between the casing and the staggered seam insulation board, and a cylindrical casing sealing strip is respectively provided in the annular area between the two ends of the casing and the building wall pipe.

It is further as follows: the inside of the wall is provided with a decorative protection surface inside the wall, and the thermal insulation filler, anti-crack mortar and glass fiber alkali-resistant grid cloth are located on the inside of the decorative protection surface inside the wall; the staggered seam The outer side of the insulation board is provided with a decorative protective surface outside the wall, and the waterproof tape is located inside the outer decorative protective surface of the wall.

The staggered seam insulation board adopts double layers, and the joints of the inner layer and the second layer are staggered to ensure the reliability and airtightness of the paste.

The outer diameter of the casing is 20-30mm larger than that of the building wall-piercing pipe, and the length of the casing is 10-20mm smaller than the thickness of the wall with thermal insulation boards with staggered joints.

The opening of the wall-through pipe of the building and the facades on both sides of the wall are bonded and sealed with crack-resistant mortar and glass fiber alkali-resistant mesh cloth, and the sticking range extends 100mm outward along the outside of the opening.

In the intersection area of the extension end of the building wall pipe, the staggered seam insulation board and the outer decorative protective surface of the wall, the waterproof tape has a bandwidth of not less than 30 mm, and is wound and overlapped by no less than 3 circles along the casing.

The thermal insulation filling body adopts air-drying polyurethane foam filler, and the fire resistance level is B1 level.

The technical measures of four seals are adopted, including the heat insulation and sealing of the cylindrical casing sealing strip in the annular gap between the building wall pipe and the casing, the heat insulation and heat insulation sealing of the annular area between the casing and the wall opening, and the construction. The anti-crack sealing of the façade on both sides of the base wall at the outlet of the wall-pipe, the waterproof sealing of the intersection area of the building wall-piercing casing, the staggered insulation board and the decorative protective surface on the outside of the wall have improved the performance of the building wall-piercing pipe. Improve the thermal insulation efficiency, improve the energy-saving efficiency of the building wall, and avoid the formation of thermal bridges between the building wall pipe and the wall.

The utility model adopts casing protection, four sealing technical measures, and staggered seam thermal insulation joint structure, and the structural structure has clear layers, which is beneficial to the processing and construction of thermal bridge joints of building wall pipes, and improves the standardization of thermal bridge construction. Improve the energy-saving effect of building walls.

Description of drawings

Fig. 1 is a structural representation of the utility model.

In the figure: 1. Building wall pipe; 2. Thermal insulation filling body; 3. Staggered joint insulation board; 4. Glass fiber alkali-resistant mesh cloth; 5. Crack-resistant mortar; 6. Waterproof tape; 7. Sleeve ; 8. Cylindrical casing sealing strip; 9. Decorative protective surface on the outside of the wall; 10. Decorative protective surface on the inside of the wall.

Detailed ways

Below is a specific embodiment of the utility model, now in conjunction with accompanying drawing 1 the utility model is described further.

In a residential project, the wall is a reinforced concrete shear wall with a thickness of 180mm, and the heat transfer coefficient of the wall is required to be no more than 0.34 (W/m ² ·K). The structural form of a heat-resistant bridge is adopted for ventilation pipes and water supply and drainage pipes .

As shown in Figure 1, a building through-the-wall pipe heat-proof bridge structure, the building through-the-wall pipe 1 passes through the casing 7, the casing 7 passes through the wall, and the insulation filling is filled between the casing 7 and the wall Body 2, thermal insulation filling body 2 adopts air-dry polyurethane foam filler, and the fire resistance level is B1; the opening of the building through-wall pipe 1 and the facades on both sides of the wall are made of crack-resistant mortar 5 and glass fiber resistant Alkali grid cloth 4 is bonded and sealed with one piece, and the pasting range extends 100mm outward along the top of the hole; on the outside of the wall, the staggered insulation board 3 is pasted. Stagger the positions of the pasting joints to ensure the reliability and airtightness of the pasting; set the anti-aging waterproof tape 6 in the intersection area of the building through-wall pipe 1 extended end, the staggered seam insulation board 3 and the outer decorative protective surface 9 of the wall for sealing, waterproof tape 6. The width is not less than 30 mm, and the winding and overlapping of the casing 7 are not less than 3 times; a columnar casing sealing strip 8 is respectively provided in the annular area between the two ends of the casing 7 and the building wall pipe 1, and the outside of the casing 7 The diameter is 20-30mm larger than the outer diameter of the building wall-through pipe 1, and the length of the casing 7 is 10-20mm smaller than the thickness of the wall with the staggered joint thermal insulation board 3; the inner side of the wall is bonded with the decorative protective surface 10 inside the wall; The outer side of the plate 3 is bonded to the outer decorative protective surface 9 of the wall.

The heat-proof bridge structure adopts four sealing technical measures in sequence, including the heat insulation seal of the cylindrical casing sealing strip in the annular gap between the building wall pipe and the casing, and the thermal insulation insulation in the annular area between the casing and the wall opening. Heat sealing, anti-crack sealing of the façade on both sides of the base wall at the outlet of the building wall pipe, waterproof sealing of the intersection area of the building wall casing sleeve extension, the staggered joint insulation board and the outer decorative protective surface of the wall. Adopting a building wall pipe heat-proof bridge structure to solve the technical problem of thermal bridge construction on the building wall, the energy-saving method of thermal bridge treatment, the heat transfer coefficient does not exceed 0.34 (W/m ² ·K), and the expected energy-saving goal of the design is achieved .

Claims (7)

1. build the anti-heat bridge structure of wall pipe, comprise the building wall pipe (1) through body of wall; It is characterized in that: the upper cover of described building wall pipe (1) has sleeve pipe (7); Thermal insulation obturator (2) is filled with between described sleeve pipe (7) and body of wall; Go out hole in building wall pipe (1), the two side ends facade of body of wall is provided with anticracking grout (5) and the alkaline-resisting grid cloth of glass fiber (4); Fissure of displacement heat preservation plate material (3) is fixed with in wall outer side; Between described sleeve pipe (7) and fissure of displacement heat preservation plate material (3), be fixed with adhesive waterproof tape (6), between sleeve pipe (7) two ends and building wall pipe (1), annular section is respectively provided with a column pipe weather strip (8).

2. the anti-heat bridge structure of one building wall pipe according to claim 1, it is characterized in that: be provided with inside described body of wall inside body of wall and decorate protection face (10), described thermal insulation obturator (2), anticracking grout (5) and the alkaline-resisting grid cloth of glass fiber (4) are positioned at inside body of wall decorates protection face (10) inner side; Described fissure of displacement heat preservation plate material (3) outside is provided with wall outer side decoration protection face (9), and described adhesive waterproof tape (6) is positioned at wall outer side decoration protection face (9) inner side.

3. the anti-heat bridge structure of one building wall pipe according to claim 1 and 2, is characterized in that: described fissure of displacement heat preservation plate material (3) adopts double-deck, and internal layer stickup piece and the second layer are pasted piece position and mutually staggered, and ensure the firm and tightness of pasting.

4. the anti-heat bridge structure of one building wall pipe according to claim 1 and 2, it is characterized in that: described sleeve pipe (7) external diameter 20-30mm larger than building wall pipe (1) external diameter, sleeve pipe (7) length 10-20mm less of the thickness of wall body of band fissure of displacement heat preservation plate material (3).

5. the anti-heat bridge structure of one building wall pipe according to claim 1 and 2, it is characterized in that: described building wall pipe (1) go out hole, body of wall two side ends facade adopt anticracking grout (5) and the alkaline-resisting grid cloth of glass fiber (4) be respectively bonded and sealed together, stickup scope along lateral, hole extension 100mm.

6. the anti-heat bridge structure of one building wall pipe according to claim 1 and 2, it is characterized in that: at described building wall pipe (1) overhanging end, fissure of displacement heat preservation plate material (3) and wall outer side decoration protection face (9) intersectional region, adhesive waterproof tape (6) is wide is no less than 30mm, is wound around overlap is no less than 3 circles along sleeve pipe (7).

7. the anti-heat bridge structure of one building wall pipe according to claim 1 and 2, is characterized in that: described thermal insulation obturator (2) adopts air drying type polyurethane foam filler, and fire resistance rating is B1 level.