Heat insulation system for zero-energy-consumption building

Abstract

The utility model relates to the field of building heat preservation, in particular to a heat insulation system for a zero-energy-consumption building, which comprises an outer wall body, a pipeline penetrating pipe and a sleeve, the outer wall body is sequentially provided with a concrete reinforcement layer, a heat preservation layer and a decoration layer from indoor to outdoor, and the pipeline penetrating pipe sequentially penetrates through the concrete reinforcement layer, the heat preservation layer and the decoration layer. The sleeve is coaxially arranged on the periphery of the pipeline penetrating pipe in a sleeving mode, the two ends, in the axis direction of the sleeve, of the sleeve are flush with the surfaces of the two sides, in the axis direction of the sleeve, of the concrete reinforcement layer, the position between the sleeve and the pipeline penetrating pipe is filled with polyurethane sponge, the inner side of the pipeline penetrating pipe is used for allowing a pipeline to penetrate through, and the pipeline penetrating pipe is filled with two-component polyurethane sponge. A heat preservation layer is arranged on the side, close to the outdoor space, of the concrete reinforcing steel bar layer, polyurethane sponge is filled between the sleeve and the pipeline penetrating pipe, and double-component polyurethane sponge is filled in the pipeline penetrating pipe, so that the sealing performance of a building is improved, the possibility of heat loss caused by indoor and outdoor air convection is reduced, and the heat preservation performance of the building is improved.

Description

Technical Field

[0001] The present application relates to the field of building insulation, and in particular to a thermal insulation system for zero-energy buildings. Background Art

[0002] The evolution from low-energy buildings to passive low-energy buildings, zero-energy buildings, and energy-efficient buildings is an inevitable requirement for the development of building energy-saving technologies. Passive low-energy buildings utilize various energy-saving structural and construction techniques to improve the thermal insulation and airtightness of the building envelope, reducing the energy demand for cooling and heating. The sealing and airtightness requirements of building walls, such as door and window openings and pipe penetrations, are crucial factors influencing airtightness and thermal insulation performance.

[0003] In existing buildings, when pipelines are passed through walls, a hole is usually directly set between the inner and outer walls, and then a fire-proof sealing is performed. This simple setting has poor airtightness, waterproofness and thermal insulation performance, and cannot meet the building's requirements for airtightness and thermal insulation performance. Utility Model Content

[0004] In order to reduce the impact of pipeline penetration through walls on the airtightness, waterproofness and thermal insulation performance of a building and improve the thermal insulation performance of the building, the present application provides an insulation system for a zero-energy building.

[0005] The present application provides a thermal insulation system for a zero-energy building using the following technical solutions:

[0006] A thermal insulation system for a zero-energy building comprises an exterior wall body, a pipeline conduit and a sleeve, wherein the exterior wall body is provided with a concrete reinforcement layer, a thermal insulation layer and a decorative layer in sequence from indoors to outdoors, and the pipeline conduit passes through the concrete reinforcement layer, the thermal insulation layer and the decorative layer in sequence, and the sleeve is coaxially sleeved on the outer periphery of the pipeline conduit, with both ends of the sleeve along the sleeve axis being flush with the surfaces of the concrete reinforcement layer on both sides along the sleeve axis, polyurethane sponge is filled between the sleeve and the pipeline conduit, the inner side of the pipeline conduit is used for pipelines to pass through, and the pipeline conduit is filled with two-component polyurethane sponge.

[0007] By adopting the above technical solution, an insulation layer is provided on the side of the concrete reinforcement layer close to the outdoors, and polyurethane sponge is filled between the casing and the pipe through which the pipe is threaded. The pipe through which the pipe is threaded is filled with two-component polyurethane sponge, which helps to improve the sealing of the building, reduce the possibility of heat loss caused by indoor and outdoor air convection, and improve the thermal insulation performance of the building itself.

[0008] Preferably, the exterior wall body further comprises an airtight layer, and the airtight layer is connected to a side of the concrete reinforcement layer away from the insulation layer.

[0009] By adopting the above technical solution, the airtight layer is used to hinder the exchange of outdoor and indoor air, thereby improving the airtightness of the building, reducing heat loss due to air convection, and improving the thermal insulation performance of the building.

[0010] Preferably, it also includes a waterproof vapor barrier membrane and a waterproof vapor permeable membrane, the waterproof vapor barrier membrane is connected to the side of the concrete steel layer close to the airtight layer, the waterproof vapor permeable membrane is connected to the side of the concrete steel layer close to the insulation layer, and the waterproof vapor barrier membrane and the waterproof vapor permeable membrane are both arranged along the circumference of the pipeline.

[0011] By adopting the above technical solution, the waterproof vapor barrier membrane is used to prevent external water vapor from entering the room through the connection between the pipeline and the concrete steel layer, causing damage to the indoor decoration materials; while the waterproof vapor permeable membrane is waterproof, it allows the water vapor in the exterior wall body to be discharged to the outside, liquefies the dead water vapor in the exterior wall body, and reduces the possibility of moisture and mold on the exterior wall body, thereby increasing the service life of the building.

[0012] Preferably, the waterproof vapor barrier membrane is laid along the concrete steel bar layer in the direction away from the pipeline, and the laying length of the waterproof vapor barrier membrane is 200 mm. The waterproof vapor barrier membrane is laid along the axis of the pipeline away from the insulation layer, and the laying length of the waterproof vapor barrier membrane is 100 mm.

[0013] By adopting the above technical solution, the waterproof vapor barrier membrane extends from the concrete steel bar layer to the outer periphery of the pipeline, and the waterproof vapor barrier membrane extends along the axis of the pipeline away from the insulation layer, which helps to improve the sealing between the concrete steel bar layer and the airtight layer and the airtight layer and the pipeline. The laying length of the waterproof vapor barrier membrane along the concrete steel bar layer is 200mm, and the laying length of the waterproof vapor barrier membrane along the axis of the pipeline is 100mm, which helps to reduce production costs while ensuring airtightness.

[0014] Preferably, the waterproof vapor-permeable membrane is laid along the concrete steel bar layer in a direction away from the pipeline, and the laying length of the waterproof vapor-permeable membrane is 200 mm. The waterproof vapor-permeable membrane is laid along the pipeline axis in a direction away from the airtight layer, and the laying length of the waterproof vapor-permeable membrane is 100 mm.

[0015] By adopting the above technical solution, the waterproof vapor-permeable membrane extends from the concrete steel bar layer to the outer periphery of the pipeline, and the waterproof vapor-permeable membrane extends along the axis of the pipeline away from the airtight layer, which helps to improve the sealing between the concrete steel bar layer and the insulation layer and between the insulation layer and the pipeline. The laying length of the waterproof vapor-permeable membrane along the concrete steel bar layer is 200 mm, and the laying length of the waterproof vapor-permeable membrane along the axis of the pipeline is 100 mm, which helps to reduce production costs while ensuring airtightness.

[0016] Preferably, the sleeve is made of galvanized steel or PVC.

[0017] By adopting the above technical solutions, galvanized steel and PVC materials have strong corrosion resistance and fire resistance, which helps to reduce the possibility of harmful substances in the external environment causing damage to the pipeline and increase the service life of the pipeline.

[0018] Preferably, the sleeve includes a tube body and a support plate, the tube body is coaxially sleeved on the outer circumference of the pipeline pipe, the inner circumference of the tube body close to the insulation layer is coaxially connected to a limiting ring, the support plate is coaxially embedded in the tube body, the side surface of the support plate away from the insulation layer abuts against the side surface of the limiting ring close to the insulation layer, the side of the support plate close to the limiting ring is connected with a buckle, the buckle is buckled to the side surface of the limiting ring away from the insulation layer, the inner circumference of the support plate is coaxially provided with a through hole, the through hole is used for the pipeline pipe to pass through, and the wall of the through hole is in contact with the outer wall of the pipeline pipe.

[0019] By adopting the above technical solution, the support plate is provided with a through hole, which is used for the pipeline pipe to pass through, supporting the pipeline pipe, reducing the work intensity of the staff in supporting the pipeline pipe, and facilitating the staff to carry out subsequent polyurethane sponge filling.

[0020] Preferably, the sleeve further includes reinforcing ribs, which extend from the surface of the side of the limiting ring away from the insulation layer to the inner wall of the sleeve. There are a plurality of reinforcing ribs, which are evenly distributed circumferentially around the axis of the sleeve.

[0021] By adopting the above technical solution and providing reinforcing ribs, it is helpful to improve the structural strength of the pipe body and increase the service life of the pipe body.

[0022] Preferably, the casing also includes a support frame, which includes a connecting ring and a support seat. The connecting ring is coaxially embedded in the tube body, and the outer wall of the connecting ring fits with the inner wall of the tube body. The outer wall of the connecting ring is provided with an embedding groove, and the embedding groove is located on the side of the connecting ring close to the limiting ring. The number of the embedding grooves is the same as the number of reinforcing ribs and corresponds one to one. The embedding groove is used for embedding one end of the reinforcing rib away from the limiting ring. One end of the support seat is connected to the inner wall of the connecting ring, and the other end of the support seat is used to fit with the outer wall of the pipeline. There are several support seats, and the several support seats are evenly distributed circumferentially around the axis of the casing.

[0023] By adopting the above technical solution, a support seat is provided, and one end of the support seat away from the inner wall of the pipe body is in contact with the outer wall of the pipeline pipe, thereby improving the stability of the connection between the sleeve and the pipeline pipe.

[0024] Preferably, the support seat includes a fixed column, a sliding seat and a reset member, the fixed column is connected to the connecting ring, the length direction of the fixed column is parallel to the radial direction of the connecting ring, the sliding seat is slidably connected to the fixed column, the sliding direction of the sliding seat is parallel to the length direction of the fixed column, the end of the sliding seat away from the connecting ring is provided with a second chamfer, the second chamfer is located on the side of the sliding seat away from the limiting ring, the second chamfer is used for abutment of one end of the pipeline pipe, the reset member is connected between the fixed column and the sliding seat, and the reset member makes the sliding seat have a tendency to press against the outer wall of the pipeline pipe.

[0025] By adopting the above technical solution, the support seat includes a fixed column, a sliding seat and a reset member. The pipeline pipe abuts the second chamfer, and the sliding seat overcomes the elastic force of the reset member and slides, so that the sliding seat abuts the outer wall of the pipeline pipe, thereby realizing the relative fixation of the pipeline pipe and the support frame along the radial direction of the pipe body, which helps to adapt to pipeline pipes of different diameters and improve the applicability of the casing.

[0026] In summary, this application includes at least one of the following beneficial technical effects:

[0027] 1. An insulation layer is provided on the side of the concrete reinforcement layer close to the outside, and polyurethane sponge is filled between the casing and the conduit. The conduit is filled with two-component polyurethane sponge, which helps to improve the sealing of the building, reduce the possibility of heat loss caused by indoor and outdoor air convection, and improve the thermal insulation performance of the building itself;

[0028] 2. The waterproof vapor barrier membrane is used to prevent external water vapor from entering the room through the connection between the pipeline and the concrete reinforcement layer, causing damage to the interior decoration materials. The waterproof vapor permeable membrane not only waterproofs the exterior wall, but also allows the water vapor in the exterior wall to be discharged outward, liquefying the dead water vapor in the exterior wall body, which may cause the exterior wall body to become damp and moldy, thereby extending the service life of the building.

[0029] 3. The support plate is provided with a through hole for the pipe to pass through, which plays a supporting role for the pipe. A support seat is provided, and the end of the support seat away from the inner wall of the pipe body is in contact with the outer wall of the pipe, thereby improving the stability of the connection between the casing and the pipe, reducing the work intensity of the staff in supporting the pipe, and facilitating the staff to carry out subsequent polyurethane sponge filling. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 is a cross-sectional view of an insulation system for a zero-energy building.

[0031] Figure 2 It is a partial cross-sectional view of the casing and the line pipe.

[0032] Figure 3 It is a schematic diagram of the explosion structure of the casing.

[0033] Figure 4 yes Figure 2 Enlarged view of point A in the middle.

[0034] Figure 5 yes Figure 2 Enlarged view of point B in the middle.

[0035] Description of reference numerals:

[0036] 1. Exterior wall; 11. Concrete reinforcement layer; 12. Insulation layer; 13. Decorative layer; 14. Airtight layer; 15. Pipeline holes; 16. Mounting holes;

[0037] 2. Pipeline pipe;

[0038] 3. Sleeve; 31. Tube body; 32. Support plate; 321. Through hole; 322. Buckle; 323. First chamfer; 33. Limiting ring; 331. Guide groove; 332. Third chamfer; 333. Clamping groove; 34. Reinforcing rib; 35. Support frame; 351. Connecting ring; 3511. Embossed groove; 352. Support seat; 3521. Fixed column; 3522. Sliding seat; 35221. Second chamfer; 35222. Slide groove; 3523. Reset member;

[0039] 4. Polyurethane sponge;

[0040] 5. Waterproof vapor barrier membrane;

[0041] 6. Waterproof and breathable membrane;

[0042] 7. Pre-compression expansion seal ring;

[0043] 8. Silicone sealant. DETAILED DESCRIPTION

[0044] The present application is further described in detail below with reference to the accompanying drawings.

[0045] Reference Figure 1 The embodiment of the present application discloses a thermal insulation system for a zero-energy building, including an exterior wall body 1. The exterior wall body 1 includes an airtight layer 14, a concrete reinforcement layer 11, an insulation layer 12, and a decorative layer 13. The airtight layer 14, the concrete reinforcement layer 11, the insulation layer 12, and the decorative layer 13 are arranged in sequence from indoors to outdoors. The exterior wall body 1 is provided with a pipeline hole 15. The pipeline hole 15 passes through the airtight layer 14, the concrete reinforcement layer 11, the insulation layer 12, and the decorative layer 13 in sequence along the axis of the pipeline hole 15. A mounting hole 16 is coaxially provided on the wall of the pipeline hole 15. The mounting hole 16 is located in the concrete reinforcement layer 11 and passes through the concrete reinforcement layer 11 along the axis of the pipeline hole 15.

[0046] A thermal insulation system for a zero-energy building also includes a conduit 2, a pre-stressed expansion seal 7, and a silicone sealant 8. The conduit 2 is coaxially embedded in a conduit hole 15, with both sides of the conduit 2 extending out of the conduit hole 15 along the axis of the conduit 2. The pre-stressed expansion seal 7 is coaxially sleeved on the outer periphery of the conduit 2, and is located on the side of the insulation layer 12 away from the concrete reinforcement layer 11. The silicone sealant 8 is laid at the connection between the conduit 2 and the decorative layer 13, and the silicone sealant 8 is arranged around the conduit 2. The conduit 2 is used for pipelines to pass through, and the conduit 2 is filled with a two-component polyurethane sponge 4.

[0047] A thermal insulation system for a zero-energy building also includes a waterproof vapor barrier membrane 5. The membrane 5 is fixedly attached to the side of the concrete reinforcement layer 11 near the airtight layer 14 and is positioned circumferentially around the conduit 2. The membrane 5 is applied along the concrete reinforcement layer 11, away from the conduit 2, for a total length of 200 mm. The membrane 5 is also applied along the axis of the conduit 2, away from the insulation layer 12, for a total length of 100 mm.

[0048] A thermal insulation system for a zero-energy building also includes a waterproof vapor-permeable membrane 6. This membrane is fixedly attached to the side of the concrete reinforcement layer 11 near the insulation layer 12 and is positioned circumferentially around the conduit 2. The membrane 6 is applied along the concrete reinforcement layer 11, away from the conduit 2, for a total length of 200 mm. It is also applied along the axis of the conduit 2, away from the airtight layer 14, for a total length of 100 mm.

[0049] Reference Figure 1 and Figure 2, a thermal insulation system for zero-energy buildings also includes a sleeve 3. In this embodiment, the sleeve 3 is made of galvanized steel or PVC. The sleeve 3 includes a tube body 31 and a support plate 32. The tube body 31 is coaxially sleeved on the outer periphery of the pipeline pipe 2, and a polyurethane sponge 4 is filled between the tube body 31 and the pipeline pipe 2. The tube body 31 is embedded in the mounting hole 16, and the outer wall of the tube body 31 fits with the hole wall of the mounting hole 16. The two ends of the tube body 31 along the axis of the tube body 31 are flush with the surfaces of the concrete steel layer 11 on both sides along the axis of the tube body 31. A limiting ring 33 is coaxially fixedly connected to the inner wall of the tube body 31, and the limiting ring 33 is located on the side of the tube body 31 close to the insulation layer 12. The support plate 32 is coaxially embedded in the tube body 31, and the outer wall of the support plate 32 fits with the inner wall of the tube body 31. The surface of the side of the support plate 32 away from the insulation layer 12 abuts against the surface of the side of the limiting ring 33 close to the insulation layer 12. The support plate 32 is coaxially provided with a through hole 321, which is used for the pipeline pipe 2 to pass through. The wall of the through hole 321 is in contact with the outer wall of the pipeline pipe 2. The wall of the through hole 321 away from the insulation layer 12 is provided with a first chamfer 323, which is used for one end of the pipeline pipe 2 to abut.

[0050] Reference Figure 3 and Figure 4 , a buckle 322 is fixedly connected to the side of the support plate 32 close to the limiting ring 33, and the buckle 322 is buckled to the surface of the side of the limiting ring 33 away from the thermal insulation layer 12. There are a plurality of buckles 322, and the buckles 322 are evenly distributed circumferentially around the axis of the support plate 32. In this embodiment, there are three buckles 322. A guide groove 331 is provided on the side of the limiting ring 33 close to the support plate 32. The number of guide grooves 331 is the same as the number of buckles 322 and corresponds one to one. The groove wall of the guide groove 331 on the side away from the inner wall of the tube body 31 is connected to the inner side of the limiting ring 33, and the bottom of the guide groove 331 is provided with a third chamfer 332. The third chamfer 332 is located on the side of the guide groove 331 away from the inner wall of the tube body 31. The third chamfer 332 is used for the end of the buckle 322 away from the support plate 32 to abut. A clamping groove 333 is provided on one side of the limiting ring 33 away from the support plate 32 . The number of the clamping grooves 333 is the same as the number of the guide grooves 331 and they correspond one to one. The clamping grooves 333 are used for the buckles 322 to be embedded.

[0051] A reinforcing rib 34 is fixedly attached to the inner wall of the tube body 31. The length of the rib 34 is parallel to the axis of the tube body 31. The rib 34 extends from the side of the retaining ring 33 away from the insulation layer 12 to the inner wall of the sleeve 3. There are multiple reinforcing ribs 34, evenly distributed around the axis of the tube body 31. In this embodiment, there are eight reinforcing ribs 34.

[0052] Reference Figure 3 and Figure 5The sleeve 3 also includes a support frame 35. The support frame 35 includes a connecting ring 351 and a support seat 352. The connecting ring 351 is coaxially embedded in the tube body 31. The outer wall of the connecting ring 351 fits in contact with the inner wall of the tube body 31. A embedding groove 3511 is provided on the outer wall of the connecting ring 351. The embedding groove 3511 is located on the side of the connecting ring 351 close to the limiting ring 33. The number of embedding grooves 3511 is the same as the number of reinforcing ribs 34 and corresponds one-to-one. The embedding grooves 3511 are used to embed the end of the reinforcing rib 34 away from the limiting ring 33. In this embodiment, the reinforcing rib 34 is interference fit with the embedding groove 3511. There are a plurality of support seats 352, and the plurality of support seats 352 are evenly distributed circumferentially around the axis of the connecting ring 351. In this embodiment, there are three support seats 352. The support seat 352 includes a fixed column 3521, a sliding seat 3522 and a reset member 3523. One end of the fixed post 3521 is fixedly connected to the inner wall of the connecting ring 351, with the length of the fixed post 3521 parallel to the radial direction of the connecting ring 351. The sliding seat 3522 is slidably connected to the other end of the fixed post 3521, with the sliding direction of the sliding seat 3522 parallel to the length of the fixed post 3521. The end of the sliding seat 3522 closest to the inner wall of the connecting ring 351 is provided with a sliding groove 35222, and the end of the fixed post 3521 away from the inner wall of the connecting ring 351 slides into the sliding groove 35222. The end of the sliding seat 3522 away from the fixed post 3521 is provided with a second chamfer 35221, located on the side of the sliding seat 3522 where the retaining ring 33 originally existed. The second chamfer 35221 is designed to abut against one end of the line pipe 2. The reset member 3523 is connected between the sliding seat 3522 and the fixed post 3521. The reset member 3523 causes the sliding seat 3522 to press against the outer wall of the pipeline tube 2. In this embodiment, the reset member 3523 is a spring. One end of the reset member 3523 is connected to the end of the fixed post 3521 near the bottom of the slide groove 35222, and the other end of the reset member 3523 is connected to the bottom of the slide groove 35222.

[0053] The implementation principle of a thermal insulation system for a zero-energy building according to an embodiment of the present application is as follows: when pouring the concrete reinforcement layer 11, a mounting hole 16 is reserved, and the pipe body 31 is embedded in the mounting hole 16, so that the limiting ring 33 is located on the side of the concrete reinforcement layer 11 close to the outdoors. The diameter of the reinforcement pipe 2 is selected, and a support plate 32 with a through hole 321 of a corresponding diameter is selected. The buckle 322 of the support plate 32 is abutted against the third chamfer 332, so that the buckle 322 is embedded in the slot 333, thereby achieving relative fixation between the support plate 32 and the pipe body 31. The connecting ring 351 is embedded in the pipe body 31, so that the reinforcing rib 34 is embedded in the embedding slot 3511, thereby achieving relative fixation between the connecting ring 351 and the pipe body 31.

[0054] Insert the pipeline tube 2 into the tube body 31, with one end of the pipeline tube 2 abutting the second chamfer 35221. The sliding seat 3522 overcomes the disengagement of the reset member 3523 and slides toward the inner wall of the tube body 31. The pipeline tube 2 abuts the first chamfer 323, so that the pipeline tube 2 passes through the through hole 321. Fill the space between the tube body 31 and the pipeline tube 2 with polyurethane sponge 4, pass the pipeline through the pipeline tube 2, and fill the pipeline tube 2 with two-component polyurethane sponge 4.

[0055] A waterproof vapor barrier membrane 5 is laid on the side of the concrete steel layer 11 close to the interior, and an airtight layer 14 is laid on the side of the waterproof vapor barrier membrane 5 away from the concrete steel layer 11. A waterproof vapor permeable membrane 6 is laid on the other side of the concrete steel layer 11. An insulation layer 12 and a decorative layer 13 are laid in sequence on the side of the waterproof vapor permeable membrane 6 away from the concrete steel layer 11 to ensure the airtightness and thermal insulation performance of the pipeline hole 15.

[0056] The above are all preferred embodiments of the present application, and are not intended to limit the scope of protection of the present application. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the scope of protection of the present application.

Claims

1. A thermal insulation system for a zero-energy building, characterized by: The invention comprises an exterior wall body (1), a pipe (2) and a sleeve (3); the exterior wall body (1) is provided with a concrete reinforcement layer (11), a thermal insulation layer (12) and a decorative layer (13) in sequence from indoors to outdoors; the pipe (2) passes through the concrete reinforcement layer (11), the thermal insulation layer (12) and the decorative layer (13) in sequence; the sleeve (3) is coaxially sleeved on the outer periphery of the pipe (2); both ends of the sleeve (3) along the axial direction of the sleeve (3) are flush with the surfaces of both sides of the concrete reinforcement layer (11) along the axial direction of the sleeve (3); a polyurethane sponge (4) is filled between the sleeve (3) and the pipe (2); the inner side of the pipe (2) is used for pipelines to pass through; the pipe (2) is filled with a two-component polyurethane sponge (4).

2. The thermal insulation system for zero-energy buildings according to claim 1, characterized in that: The exterior wall body (1) further comprises an airtight layer (14); the airtight layer (14) is connected to a side of the concrete reinforcement layer (11) away from the thermal insulation layer (12).

3. The thermal insulation system for zero-energy buildings according to claim 2, characterized in that: It also includes a waterproof vapor barrier membrane (5) and a waterproof vapor permeable membrane (6); the waterproof vapor barrier membrane (5) is connected to the side of the concrete reinforcement layer (11) close to the airtight layer (14); the waterproof vapor permeable membrane (6) is connected to the side of the concrete reinforcement layer (11) close to the insulation layer (12); the waterproof vapor barrier membrane (5) and the waterproof vapor permeable membrane (6) are both arranged along the circumference of the pipeline (2).

4. The thermal insulation system for zero-energy buildings according to claim 3, characterized in that: The waterproof vapor barrier film (5) is laid along the concrete reinforcement layer (11) in a direction away from the pipeline (2); the laying length of the waterproof vapor barrier film (5) is 200 mm; the waterproof vapor barrier film (5) is laid along the axis of the pipeline (2) in a direction away from the insulation layer (12); the laying length of the waterproof vapor barrier film (5) is 100 mm.

5. The thermal insulation system for zero-energy buildings according to claim 3, characterized in that: The waterproof and breathable membrane (6) is laid along the concrete reinforcement layer (11) in a direction away from the pipeline (2); the laying length of the waterproof and breathable membrane (6) is 200 mm; the waterproof and breathable membrane (6) is laid along the axis of the pipeline (2) in a direction away from the airtight layer (14); the laying length of the waterproof and breathable membrane (6) is 100 mm.

6. The thermal insulation system for zero-energy buildings according to claim 1, characterized in that: The sleeve (3) is made of galvanized steel or PVC.

7. The thermal insulation system for zero-energy buildings according to claim 1, characterized in that: The sleeve (3) comprises a tube body (31) and a support plate (32); the tube body (31) is coaxially sleeved on the outer periphery of the pipeline pipe (2); the inner periphery of the tube body (31) is coaxially connected to a limiting ring (33) on one side close to the thermal insulation layer (12); the support plate (32) is coaxially embedded in the tube body (31); the surface of the side of the support plate (32) away from the thermal insulation layer (12) abuts against the limiting ring (33) close to the thermal insulation layer (12). ); a buckle (322) is connected to a side surface of the support plate (32) close to the limiting ring (33); the buckle (322) is buckled to a side surface of the limiting ring (33) away from the insulation layer (12); a through hole (321) is coaxially provided on the inner periphery of the support plate (32); the through hole (321) is used for allowing the pipe (2) to pass through; the wall of the through hole (321) is in contact with the outer wall of the pipe (2).

8. The thermal insulation system for zero-energy buildings according to claim 7, characterized in that: The sleeve (3) further comprises a reinforcing rib (34); the reinforcing rib (34) extends from a surface of a side of the limiting ring (33) away from the thermal insulation layer (12) to the inner wall of the sleeve (3); a plurality of the reinforcing ribs (34) are provided; and the plurality of the reinforcing ribs (34) are uniformly distributed circumferentially around the axis of the sleeve (3).

9. The thermal insulation system for zero-energy buildings according to claim 8, characterized in that: The sleeve (3) further comprises a support frame (35); the support frame (35) comprises a connecting ring (351) and a supporting seat (352); the connecting ring (351) is coaxially embedded in the tube body (31); the outer wall of the connecting ring (351) is in contact with the inner wall of the tube body (31); the outer wall of the connecting ring (351) is provided with an embedding groove (3511); the embedding groove (3511) is located on a side of the connecting ring (351) close to the limiting ring (33); the embedding groove (35 11) The number is the same as the number of the reinforcing ribs (34) and corresponds one to one; the embedding groove (3511) is used for embedding the end of the reinforcing rib (34) away from the limiting ring (33); one end of the support seat (352) is connected to the inner wall of the connecting ring (351); the other end of the support seat (352) is used to fit with the outer wall of the pipeline (2); a plurality of support seats (352) are provided; and the plurality of support seats (352) are evenly distributed circumferentially around the axis of the sleeve (3).

10. The thermal insulation system for zero-energy buildings according to claim 9, characterized in that: The support seat (352) includes a fixed column (3521), a sliding seat (3522) and a reset member (3523); the fixed column (3521) is connected to the connecting ring (351); the length direction of the fixed column (3521) is parallel to the radial direction of the connecting ring (351); the sliding seat (3522) is slidably connected to the fixed column (3521); the sliding direction of the sliding seat (3522) is parallel to the length direction of the fixed column (3521); the sliding seat (3522) is far A second chamfer (35221) is provided at one end away from the connecting ring (351); the second chamfer (35221) is located on a side of the sliding seat (3522) away from the limiting ring (33); the second chamfer (35221) is used for abutting one end of the pipeline pipe (2); the reset member (3523) is connected between the fixed column (3521) and the sliding seat (3522); the reset member (3523) enables the sliding seat (3522) to have a tendency to press against the outer wall of the pipeline pipe (2).

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