Structure suitable for penetrating pipeline through outer wall of fabricated ultra-low-energy-consumption building

Abstract

The utility model relates to the field of building outer walls, in particular to a pipeline penetrating structure suitable for an outer wall of a fabricated ultra-low-energy-consumption building, which comprises a prefabricated concrete sandwich outer wall component and an outer wall pipeline penetrating structure, the prefabricated concrete sandwich outer wall component is characterized in that the prefabricated concrete sandwich outer wall component is formed by combining a prefabricated concrete outer acanthus (1), a sandwich heat preservation layer (2) and a prefabricated concrete inner acanthus (3), a pipeline (6), heat preservation rock wool (4), a waterproof vapor-permeable film (8) and a waterproof vapor-proof film (9) are arranged in a prefabricated component reserved hole (12), and an exhaust windproof cover (5) and building sealant (7) are further arranged on the outdoor side. The indoor side further comprises a connecting device (10) and a rubber and plastic heat preservation device (11). By the adoption of the technical scheme, the problems of broken bridge heat preservation, air tightness and waterproof leakproofness of the outer wall hole penetrating position of the ultralow-energy-consumption fabricated building are solved, the durability of the building is improved, the installation speed of the building is increased, and building industrialization and green development are promoted.

Description

Technical Field

[0001] The present invention relates to the field of building exterior walls, and particularly to a structure for pipes passing through the exterior wall of a prefabricated ultra-low energy consumption building. Background Art

[0002] Prefabricated buildings and ultra-low energy consumption buildings have developed rapidly in recent years and are an important direction for the development of building low-carbon energy conservation. The number of design projects is gradually increasing, and the development prospect is very broad. In the current building technology system, there are few cases of combining the two technologies of prefabricated buildings and ultra-low energy consumption buildings. Especially when the prefabricated concrete sandwich exterior wall panel system is used for the exterior enclosure of prefabricated buildings, there is less technical content that needs to meet the requirements of ultra-low energy consumption buildings, and there is a lack of invention and application of integrated technologies.

[0003] The main characteristics of ultra-low energy consumption buildings include high-performance thermal insulation exterior walls and airtightness characteristics, especially reflected in the building exterior enclosure system. The situation of pipes passing through holes in the exterior wall of ultra-low energy consumption buildings is an important node for the thermal insulation broken bridge and airtightness design of the exterior enclosure. Prefabricated concrete sandwich exterior wall panels are common exterior wall systems in prefabricated buildings, especially prefabricated residential buildings. When prefabricated ultra-low energy consumption buildings adopt the prefabricated concrete sandwich exterior wall panel system, some exterior walls need to be reserved with holes and designed for pipes to pass through the exterior wall to meet the requirements of external air intake and exhaust for indoor fresh air ventilation integrated machines. In this case, the position of the hole in the exterior wall not only needs to meet the structural design requirements of the prefabricated sandwich panel for the exterior enclosure of prefabricated buildings, but also needs to meet the design requirements of the thermal insulation broken bridge and airtightness continuity of ultra-low energy consumption buildings, and has relatively high requirements for the node structure.

[0004] The existing ultra-low energy consumption exterior wall pipe-passing technology is relatively mature. The utility model patent of "An Ultra-Low Energy Consumption Building Exterior Wall Pipe CN217153307U" discloses an ultra-low energy consumption building exterior wall pipe, which is composed of a PVC inner pipe, an outer pipe, a large flange, a small flange, a waterproof and airtight membrane, heat insulation materials, and a temporary dust-proof net. The PVC inner pipe and the outer pipe are fixedly connected through the large flange and the small flange. The waterproof and airtight membrane is pasted on the large flange. The temporary dust-proof net is installed at the outer end of the PVC inner pipe. The gap between the PVC inner pipe and the outer pipe is filled with heat insulation materials, and finally this product is made. This product has a simple structure, convenient on-site construction, controllable construction quality, reduces material waste, the installation quality of the inner pipe is flat, and it is not easy to cause condensation and mildew at the pipe position. The utility model patent of "A Pipe Passing Through an Exterior Wall CN218118905U" provides a pipe passing through an exterior wall, including a wall body, a heat insulation layer embedded inside the wall body, and at least one pipe passing through the wall. The outer layer of the pipe is wrapped with an ALC board. An alkali-resistant fiberglass mesh is provided on the surface of the wall body, and the alkali-resistant fiberglass mesh covers the end face of the ALC board. By wrapping the ALC board outside the pipe, the waterproof structure between the wall body and the pipe is strengthened, the wall structure of the pipe passing through the exterior wall has good airtightness, the engineering quality is improved, and better waterproof, sound insulation, wind blocking, and heat insulation effects can be achieved. The waterproof effect of this utility model is good, avoiding the maintenance cost caused by the leakage of the wall body in the later stage and saving the maintenance cost.

[0005] The existing technical means can separately meet the structural requirements of pipes passing through the exterior wall in ultra-low energy consumption buildings or prefabricated buildings, but cannot meet the structural requirements of pipes passing through the exterior wall in prefabricated concrete sandwich exterior wall prefabricated ultra-low energy consumption buildings. It cannot ensure the broken bridge thermal insulation performance and the continuity of the airtightness of ultra-low energy consumption buildings at the pipe passing positions, nor can it adapt to the production and installation requirements of prefabricated concrete sandwich exterior walls and cannot provide effective on-site installation guidance. The structure for pipes passing through the exterior wall of a prefabricated ultra-low energy consumption building provided by the present invention can effectively solve the above problems and ensure the thermal insulation performance, airtightness performance of the building, and the feasibility of on-site construction. Summary of the Invention

[0006] Aiming at the problems in the background technology, in order to solve the broken bridge thermal insulation performance, airtightness performance, waterproof and airtight performance, and the feasibility of construction and installation at the nodes where pipes pass through the exterior wall in the prefabricated concrete sandwich exterior wall system of ultra-low energy consumption prefabricated buildings, improve the building performance, and shorten the construction period, the present invention proposes a structure for pipes passing through the exterior wall of a prefabricated ultra-low energy consumption building.

[0007] The invention is suitable for a structure for passing pipes through the exterior wall of an assembled ultra-low energy consumption building, including a precast concrete sandwich exterior wall component and a structure for passing pipes through the exterior wall, and is characterized in that: the precast concrete sandwich exterior wall component is composed of a precast concrete outer blade 1, a sandwich insulation layer 2 and a precast concrete inner blade 3, and a pipe 6, an insulating rock wool 4, a waterproof vapor-permeable membrane 8, and a waterproof vapor-blocking membrane 9 are arranged in a reserved hole 12 of the precast component, and also includes an exhaust wind shield 5 and a building sealant 7 on the outdoor side, and also includes a connecting device 10 and a rubber-plastic insulation 11 on the indoor side.

[0008] Furthermore, the prefabricated component reserved hole 12 is prefabricated on the prefabricated concrete sandwich exterior wall component during the factory production process. The prefabricated component reserved hole 12 passes through the three-layer component of the prefabricated concrete outer blade 1, the sandwich insulation layer 2 and the prefabricated concrete inner blade 3 during the factory prefabrication process, and the pipe 6 is located in the prefabricated component reserved hole 12.

[0009] Furthermore, the waterproof vapor-permeable membrane 8 is located on the outdoor side of the precast concrete inner blade 3 and is connected to it, with a connection length greater than 40 mm, and is connected to the pipe 6, with a connection length greater than 40 mm. The waterproof vapor-isolating membrane 9 is located on the indoor side of the precast concrete inner blade 3 and is connected to it, with a connection length greater than 40 mm, and is connected to the pipe 6, with a connection length greater than 40 mm.

[0010] Furthermore, the reserved opening 12 of the prefabricated component should be compatible with the size of the thermal insulation rock wool 4 and the pipe 6, and the thickness of the thermal insulation rock wool 4 is 30-50 mm.

[0011] Furthermore, the exhaust wind shield 5 is located outside the room and connected to the pipe 6. The exhaust wind shield 5 is on the precast concrete outer blade 1. The building sealant 7 is located around the contact position between the exhaust wind shield 5 and the precast concrete outer blade 1.

[0012] Furthermore, the rubber-plastic insulation 11 is located on the indoor side and surrounds the pipe 6 , and the connecting device 10 is located on the indoor side and connected to the pipe 6 .

[0013] Furthermore, the thermal insulation rock wool 4 is prefabricated in a factory into matching sizes and shapes.

[0014] Furthermore, the building sealant 7 is a silicone sealant.

[0015] Furthermore, the sandwich insulation layer 2 is a composite insulation structure formed by stacking one or more of rock wool insulation board, vacuum insulation board, extruded polystyrene board, graphite polystyrene board, and rigid foam polyurethane insulation board.

[0016] Compared with the existing practices, the present invention has the following beneficial effects:

[0017] Adopting the present invention

[0018] Since the reserved holes 12 of the precast components are precast during the factory production process, on-site hole drilling and on-site construction are avoided, the construction efficiency of the building exterior wall is improved, and the dimension and position accuracy of the exterior wall holes are improved.

[0019] Since the waterproof and breathable membrane 8 is located on the outdoor side of the precast concrete inner leaf 3 and is connected thereto, the connection length is greater than 40 mm, and it is connected to the pipe 6, the connection length is greater than 40 mm, which ensures the waterproof and breathable performance and airtight performance of the exterior wall through-pipe facing the outdoor side, ensures the firm bonding of the waterproof and breathable membrane with the structure and the pipe, and avoids the falling off or separation of the waterproof and breathable membrane during the later use process.

[0020] Since the waterproof and vapor barrier membrane 9 is located on the indoor side of the precast concrete inner leaf 3 and is connected thereto, the connection length is greater than 40 mm, and it is connected to the pipe 6, the connection length is greater than 40 mm, which ensures the waterproof and breathable performance and airtight performance of the exterior wall through-pipe facing the indoor side, ensures the firm bonding of the waterproof and vapor barrier membrane with the structure and the pipe, and avoids the falling off or separation of the waterproof and vapor barrier membrane during the later use process.

[0021] Since the reserved holes 12 of the precast components are adapted to the sizes of the thermal insulation rock wool 4 and the pipe 6, and the thermal insulation rock wool 4 is prefabricated into matching sizes and shapes in the factory, the installation speed and accuracy of the thermal insulation and the pipe on-site are greatly improved, the construction efficiency is improved, and the airtight performance and thermal insulation and heat insulation performance of the node position are enhanced.

[0022] Since the rubber and plastic thermal insulation 11 is located around the pipe 6 on the indoor side, the thermal insulation performance before the pipe passes through the exterior wall structure and is connected to the connection device 10 on the indoor side is improved, the heat loss is reduced, the influence of the air temperature in the pipe on the indoor temperature fluctuation is reduced, and the indoor comfort is improved. Description of the Drawings

[0023] Figure 1 It is a structure applicable to the air duct passing through the exterior wall of an assembled passive ultra-low energy consumption building;

[0024] Figure 2 It is a hole-retaining structure for a precast concrete sandwich exterior wall of an assembled passive ultra-low energy consumption building;

[0025] Description of the Reference Numerals:

[0026] 1 - Precast concrete outer leaf; 2 - Sandwich thermal insulation; 3 - Precast concrete inner leaf; 4 - Thermal insulation rock wool; 5 - Exhaust and wind-proof cover;

[0027] 6 - Pipe; 7 - Building sealant; 8 - Waterproof and breathable membrane; 9 - Waterproof and vapor barrier membrane; 10 - Connection device; 11 - Rubber and plastic thermal insulation;

[0028] 12 —— Reserved hole. Detailed implementation manners

[0029] The following specific embodiments illustrate the specific implementation manners of the present utility model. Those skilled in the art can easily understand other advantages and effects of the present utility model from the content disclosed in this specification. The specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0030] Specific example 1:

[0031] Referring to Figures 1 to 2 , the present utility model provides a structure applicable to the pipeline passing through the exterior wall of an assembled ultra-low energy consumption building.

[0032] The exterior wall of the assembled ultra-low energy consumption building described above includes a precast concrete outer leaf board 1, a sandwich thermal insulation 2, and a precast concrete inner leaf board 3. These components are prefabricated in a factory to form a standardized product and transported to the construction site for installation.

[0033] The precast concrete outer leaf board 1 is a 60-mm reinforced concrete precast wall.

[0034] The precast concrete inner leaf board 3 is a 200-mm reinforced concrete precast wall.

[0035] The sandwich thermal insulation 2 is an integrated thermal insulation composed of 30-mm rigid polyurethane foam + 30-mm vacuum adiabatic thermal insulation board + 30-mm rigid polyurethane foam. Each layer of thermal insulation is prefabricated and processed in a factory to ensure that the exterior wall of the building meets the thermal insulation requirements of an ultra-low energy consumption building.

[0036] The reserved hole 12 is a 300-mm circular hole, which is reserved during the production of the exterior wall of the assembled ultra-low energy consumption building in a precast component factory.

[0037] The reserved hole 12 should be filled with extruded polystyrene board as a protection measure in the precast component factory, and the filled extruded polystyrene board should be removed after the component is transported to the site.

[0038] During on-site installation, first pass the pipeline 6 through the reserved hole 12, and fill the void within the range of the precast concrete inner leaf board 3 with thermal insulation rock wool 4.

[0039] The pipeline 6 has a diameter of 200 mm and is an air duct made of PVC material, which has a certain heat bridge breaking function to avoid heat loss and cold bridge.

[0040] One side of the waterproof and breathable membrane 8 is pasted on the outdoor side of the precast concrete inner leaf board 3 with a pasting length of 40 mm, and the other side is pasted on the pipeline 6 with a pasting length of 40 mm.

[0041] One side of the waterproof and vapor barrier film 9 is pasted on the indoor side of the precast concrete inner leaf panel 3 with a pasting length of 40 mm, and the other side is pasted on the pipeline 6 with a pasting length of 40 mm.

[0042] Subsequently, the remaining gap between the reserved hole 12 and the pipeline 6 is filled with thermal insulation rock wool 4 to ensure that the rock wool is tightly and densely filled.

[0043] The thermal insulation rock wool 4 is prefabricated in the factory into a ring-shaped product with a thickness of 50 mm, and can be quickly installed in matching with the pipeline 6 on site.

[0044] On the indoor part of the pipeline 6, a rubber and plastic thermal insulation 11 is nested and installed on the outside, and the pipeline 6 is connected to the connecting device 10.

[0045] The connecting device 10 is the main part of the ultra-low energy consumption fresh air integrated machine installed indoors.

[0046] The exhaust and windproof cover 5 is buckled on the outside of the end of the pipeline 6 on the outdoor side and fixed to the precast concrete outer leaf panel 1 by screws. A building sealant 7 is applied to the circumferential gap around the contact position between the exhaust and windproof cover 5 and the precast concrete outer leaf panel 1 to ensure firm installation and dense sealing at the joint.

[0047] The building sealant 7 should be a silicone sealant.

[0048] Finally, on the indoor side, an interior decoration project is constructed on the inner side of the precast concrete inner leaf panel 3 by applying 15 mm mortar and interior wall paint, ensuring that the mortar effectively covers the waterproof and vapor barrier film 9 on the indoor side and ensuring the continuity of the building airtight layer.

[0049] Specific example 2:

[0050] Refer to Figures 1 to 2 , the present utility model provides a structure suitable for a pipeline passing through the outer wall of an assembled ultra-low energy consumption building.

[0051] The outer wall of the assembled ultra-low energy consumption building includes a precast concrete outer leaf panel 1, a sandwich thermal insulation 2, and a precast concrete inner leaf panel 3. These components are prefabricated in the factory to form standardized products and transported to the construction site for installation.

[0052] The precast concrete outer leaf panel 1 is a 60 mm reinforced concrete precast wall.

[0053] The precast concrete inner leaf panel 3 is a 200 mm reinforced concrete precast wall.

[0054] The sandwich thermal insulation 2 is a composite thermal insulation composed of 150 mm rigid polyurethane foam + 50 mm rock wool insulation board. Each layer of thermal insulation is laid in layers during the production process of the precast components in the precast component factory to ensure that the outer wall of the building meets the thermal insulation requirements of ultra-low energy consumption buildings.

[0055] The reserved hole 12 is a 200-mm circular hole, which is reserved during the production of the precast components of the exterior wall of the prefabricated ultra-low energy consumption building in the precast component factory.

[0056] The reserved hole 12 shall be filled with extruded polystyrene board in the precast component factory as a protective measure, and the filled extruded polystyrene board shall be removed after the component is transported to the site.

[0057] During on-site installation, first pass the pipeline 6 through the reserved hole 12, and fill the gap within the range of the precast concrete inner leaf 3 with thermal insulation rock wool 4.

[0058] The pipeline 6 has a diameter of 120 mm and is a gas exhaust pipeline, including an out-wall pipe part and an indoor pipeline part.

[0059] One side of the waterproof and breathable membrane 8 is pasted on the outdoor side of the precast concrete inner leaf 3 with a pasting length of 50 mm, and the other side is pasted on the pipeline 6 with a pasting length of 50 mm.

[0060] One side of the waterproof and vapor barrier membrane 9 is pasted on the indoor side of the precast concrete inner leaf 3 with a pasting length of 50 mm, and the other side is pasted on the pipeline 6 with a pasting length of 50 mm.

[0061] Subsequently, fill the remaining gap between the reserved hole 12 and the pipeline 6 with thermal insulation rock wool 4 to ensure that the rock wool is filled tightly and densely.

[0062] The thermal insulation rock wool 4 is prefabricated into an annular product with a thickness of 50 mm in the factory and can be quickly installed in matching with the pipeline 6 on site.

[0063] On the indoor part of the pipeline 6, a rubber and plastic thermal insulation 11 is nested and installed on the outside, and the pipeline 6 is connected to the connecting device 10.

[0064] The connecting device 10 is an indoor gas wall-mounted boiler.

[0065] The exhaust windproof cover 5 is made of metal material, buckled on the outside of the end of the pipeline 6 on the outdoor side, and fixed to the precast concrete outer leaf 1 by screws. A building sealant 7 is applied to the surrounding gap at the contact position between the exhaust windproof cover 5 and the precast concrete outer leaf 1 to ensure firm installation and tight sealing at the joint.

[0066] The building sealant 7 shall be a silicone sealant.

[0067] Finally, on the indoor side, an interior decoration project is constructed on the inner side of the precast concrete inner leaf 3 by applying 15-mm mortar and interior wall paint to ensure that the mortar effectively covers the waterproof and vapor barrier membrane 9 on the indoor side and ensures the continuity of the building airtight layer.

[0068] The above specific embodiments are only used to illustrate the technical solutions of the present invention rather than to limit them. Although the present invention has been described in detail with reference to the examples, those of ordinary skill in the art should understand that the technical solutions of the present invention can be modified or equivalently replaced without departing from the spirit of the technical solutions of the present invention. This structure protects the airtightness of the position where the pipeline penetrates the building exterior wall, and effectively ensures the heat insulation performance of the building exterior wall and that the exterior wall system will not be eroded by external rainwater.

Claims

1. Applicable to the structure of outer wall pipe penetration of assembled ultra-low energy consumption buildings, including prefabricated concrete sandwich outer wall components and the structure of outer wall pipe penetration, characterized by: The precast concrete sandwich exterior wall component is composed of a precast concrete outer blade (1), a sandwich insulation layer (2) and a precast concrete inner blade (3). A pipeline (6), insulation rock wool (4), a waterproof vapor permeable membrane (8) and a waterproof vapor barrier membrane (9) are arranged in a reserved hole (12) of the precast component. The outdoor side also includes an exhaust wind shield (5) and a building sealant (7), and the indoor side also includes a connection device (10) and rubber-plastic insulation (11).

2. The structure for passing pipes through the exterior walls of assembled ultra-low energy consumption buildings according to claim 1 is characterized in that: The prefabricated component reserved opening (12) is formed on the prefabricated concrete sandwich exterior wall component during the factory production process. The prefabricated component reserved opening (12) passes through the three-layer component of the prefabricated concrete outer blade (1), the sandwich insulation layer (2) and the prefabricated concrete inner blade (3) during the factory prefabrication process. The pipeline (6) is located in the prefabricated component reserved opening (12).

3. The structure for passing pipes through the exterior walls of assembled ultra-low energy consumption buildings according to claim 2 is characterized in that: The waterproof vapor-permeable membrane (8) is located on the outdoor side of the precast concrete inner blade (3) and is connected to it, with a connection length greater than 40 mm, and is connected to the pipeline (6), with a connection length greater than 40 mm. The waterproof vapor-isolating membrane (9) is located on the indoor side of the precast concrete inner blade (3) and is connected to it, with a connection length greater than 40 mm, and is connected to the pipeline (6), with a connection length greater than 40 mm.

4. The structure for passing pipes through the exterior walls of assembled ultra-low energy consumption buildings according to claim 3 is characterized in that: The reserved opening (12) of the prefabricated component should be compatible with the size of the thermal insulation rock wool (4) and the pipe (6), and the thickness of the thermal insulation rock wool (4) is 30-50 mm.

5. The structure for passing pipes through the exterior walls of assembled ultra-low energy consumption buildings according to claim 4 is characterized in that: The exhaust wind shield (5) is located on the outdoor side and connected to the pipeline (6). The exhaust wind shield (5) is on the precast concrete outer blade (1). The building sealant (7) is located around the contact position between the exhaust wind shield (5) and the precast concrete outer blade (1).

6. The structure for passing pipes through the exterior walls of assembled ultra-low energy consumption buildings according to claim 5 is characterized in that: The rubber-plastic insulation (11) is located on the indoor side and surrounds the pipe (6), and the connecting device (10) is located on the indoor side and connected to the pipe (6).

7. The structure for passing pipes through the exterior walls of assembled ultra-low energy consumption buildings according to claim 6 is characterized in that: The building sealant (7) is a silicone sealant.

8. The structure for passing pipes through the exterior walls of assembled ultra-low energy consumption buildings according to claim 7 is characterized in that: The thermal insulation rock wool (4) is prefabricated in a factory into matching sizes and shapes.

9. The structure for passing pipes through the exterior walls of assembled ultra-low energy consumption buildings according to claim 8 is characterized in that: The sandwich insulation layer (2) is a composite insulation structure formed by stacking one or more of the following: rock wool insulation board, vacuum insulation board, extruded polystyrene board, graphite polystyrene board, and rigid foam polyurethane insulation board.

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