Low-energy-consumption airtight heat preservation structure for pipeline out of roof

Abstract

The utility model discloses a low-energy-consumption airtight heat preservation structure for a pipeline out of a roof. The airtight heat preservation structure comprises a roof plate, a roof heat preservation layer, a pipeline, a sleeve, a first pipeline heat preservation layer, a second pipeline heat preservation layer, an indoor waterproof layer, an outdoor waterproof layer, an additional waterproof layer, a vapor barrier layer and a waterproof cover. The sleeve is made of UPVC (Unplasticized Polyvinyl Chloride) and is pre-embedded in the roof The pipeline penetrates through the sleeve, and the top of the pipeline is not lower than the top of the sleeve; a first pipeline thermal insulation layer is arranged in an area between the sleeve and the pipeline; an indoor waterproof layer is arranged at the bottom of the first pipeline heat preservation layer. The indoor part of the pipeline is wrapped with a second pipeline heat preservation layer. The roof insulating layer is laid above the roof panel, a vapor barrier layer is laid at the bottom of the roof insulating layer, and an outdoor waterproof layer and an additional waterproof layer are laid at the top of the roof insulating layer; at the joint of the top of the roof heat preservation layer and the sleeve, the outdoor waterproof layer is folded upwards and extends upwards along the outer wall of the sleeve; a waterproof cover is arranged on the outer wall of the sleeve and located at the closing-up position of the vertical extending section of the outdoor waterproof layer.

Description

Technical Field

[0001] The utility model relates to the technical field of building energy conservation, in particular to a low-energy consumption airtight and heat-insulating structure for roof-piercing pipelines. Background Art

[0002] The position where equipment pipelines pierce through the roof is often a place where indoor and outdoor heat exchange and gas exchange in buildings are relatively frequent and have a greater impact on building energy consumption. If the structure design of the roof-piercing pipeline is unreasonable, it will lead to excessive indoor and outdoor heat exchange and even water seepage, resulting in large fluctuations in indoor temperature and humidity, which not only affects indoor comfort but also increases the energy consumption of the indoor air-conditioning system.

[0003] The conventional method for pipelines to pierce through the roof is as follows: a steel casing is embedded in the roof slab. After the roof-piercing pipeline passes through the casing, the area between the pipeline and the casing is filled with rock wool and fireproof mud for sealing. This structure has the following deficiencies: the steel casing has a large heat conductivity, accelerating indoor and outdoor heat exchange; it is not easy to bond between the steel casing and the roof slab, and the fireproof mud in the casing is prone to cracking and falling off, making both places prone to gaps, and this structure lacks necessary waterproof and vapor barrier measures to effectively seal the gaps.

[0004] Although various existing roof-piercing pipeline structures have improved the above deficiencies, the technical solutions are still not comprehensive enough. Therefore, it is urgent to develop a roof-piercing pipeline structure that has multiple airtight and heat-insulating effects both horizontally and vertically, thereby greatly reducing building energy consumption. Content of the Utility Model

[0005] The main technical problem to be solved by the utility model is to provide a low-energy consumption airtight and heat-insulating structure for roof-piercing pipelines, which has multiple airtight and heat-insulating effects both horizontally and vertically, thereby greatly reducing building energy consumption.

[0006] To solve the above technical problems, the utility model provides a low-energy consumption airtight and heat-insulating structure for roof-piercing pipelines, which includes a roof slab, a roof heat-insulating layer, a pipeline, a casing, a first pipeline heat-insulating layer, a second pipeline heat-insulating layer, an indoor waterproof layer, an outdoor waterproof layer, a vapor barrier layer, and a waterproof cover;

[0007] The casing is embedded in the roof slab and communicates with the indoor and outdoor spaces; the pipeline passes through the casing, and the top of the pipeline is not lower than the top of the casing; a first pipeline heat-insulating layer is arranged in the annular area between the casing and the pipeline;

[0008] The indoor waterproof layer is arranged at the bottom of the first pipeline heat-insulating layer; the indoor part of the pipeline is wrapped with a second pipeline heat-insulating layer, and the top of the second pipeline heat-insulating layer extends to the bottom of the indoor waterproof layer;

[0009] A roof insulation layer is laid above the roof slab, and the roof insulation layer laterally wraps the sleeve; a vapor barrier layer is laid at the bottom of the roof insulation layer; an outdoor waterproof layer is laid at the top of the roof insulation layer; at the junction of the top of the roof insulation layer and the sleeve, the outdoor waterproof layer is turned up and extends upward along the outer wall of the sleeve.

[0010] A waterproof cover is provided on the outer wall of the sleeve, and the waterproof cover is located at the closing opening of the vertical extension section of the outdoor waterproof layer.

[0011] In a preferred embodiment, the sleeve is made of a section of UPVC round pipe.

[0012] In a preferred embodiment, the sleeve includes an annular top cover, and the inner diameter of the top cover is equal to the outer diameter of the pipe; a sealant is provided at the junction of the top cover and the pipe.

[0013] In a preferred embodiment, an additional waterproof layer is provided on the inner side of the outdoor waterproof layer; at the junction of the top of the roof insulation layer and the sleeve, the additional waterproof layer extends horizontally for a certain length and vertically to the top of the outdoor waterproof layer.

[0014] In a preferred embodiment, at the junction of the bottom of the roof insulation layer and the sleeve, the vapor barrier layer is turned up and extends along the outer wall of the sleeve to wrap the sleeve.

[0015] In a preferred embodiment, the indoor waterproof layer is turned down at the position where it intersects with the pipe and extends downward along the outer wall of the pipe to wrap the pipe; the part of the indoor waterproof layer away from the pipe extends outward and adheres to the bottom of the roof slab.

[0016] In a preferred embodiment, the waterproof cover includes a circle of waterproof cover plates and fasteners; the top of the waterproof cover plate is hermetically connected to the sleeve through the fasteners, and the bottom projects outward and covers the top of the vertical extension section of the outdoor waterproof layer.

[0017] In a preferred embodiment, the structure further includes a leveling layer; the leveling layer is provided between the roof slab and the roof insulation layer.

[0018] In a preferred embodiment, the structure further includes a protective layer; the protective layer is provided above the outdoor waterproof layer; the protective layer is provided with a drainage slope, and the thickness gradually decreases from the side close to the sleeve to the surrounding.

[0019] In a preferred embodiment, the structure further includes a plurality of sealant layers; the sealant layers are provided at the closing openings of the indoor waterproof layer, the outdoor waterproof layer and the vapor barrier layer.

[0020] Compared with the prior art, the technical solution of the present utility model has the following beneficial effects:

[0021] The roof outlet pipe structure provided by the present utility model uses a pre-embedded sleeve made of UPVC material, which not only realizes tight bonding with the roof slab, but also has low heat conductivity, reducing the heat exchange and gas exchange between the interior and exterior of the building;

[0022] The roof outlet pipe structure provided by the present utility model is provided with two insulation layers horizontally and multiple waterproof and vapor barrier layers vertically, having better airtight and heat insulation performance;

[0023] Therefore, the roof outlet pipe structure provided by the present utility model effectively blocks the indoor-outdoor exchange, greatly improves the indoor comfort, and also significantly reduces the building energy consumption. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a schematic diagram of the airtight and heat insulation structure of the low-energy roof outlet pipe in this preferred embodiment.

[0025] The labels in the figure are: 1 - pipe, 2 - ventilation cap, 3 - fastener, 4 - waterproof cover plate, 5 - outdoor waterproof coiled material, 6 - additional waterproof coiled material, 7 - rock wool insulation layer, 8 - sleeve, 9 - roof insulation layer, 10 - vapor barrier coiled material, 11 - indoor insulation layer, 12 - waterproof and vapor barrier film, 13 - roof slab, 14 - leveling layer, 15 - protective layer; 301 - iron hoop, 302 - fastening bolt, 801 - top cover. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0026] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the drawings in the embodiments of the present utility model; obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0027] In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by the terms "upper", "lower", "inside", "outside", "top / bottom end", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be construed as a limitation of the present utility model. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance.

[0028] In the description of the present utility model, it should be noted that unless otherwise clearly specified and defined, terms such as "installation", "provided with", "sheathed / connected", "connection", etc. should be understood in a broad sense. For example, "connection" can be a wall-mounted connection, a detachable connection, or an integral connection, it can be a mechanical connection or an electrical connection, it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0029] As Figure 1 shown, the embodiment of the present utility model provides a low-energy consumption airtight and heat-insulating structure for pipes emerging from the roof, which includes a pipe 1, a ventilation cap 2, a fastener 3, a waterproof cover plate 4, an outdoor waterproof coiled material 5, an additional waterproof coiled material 6, a rock wool heat-insulating layer 7, a casing 8, a top cover 801, a roof heat-insulating layer 9, a vapor barrier coiled material 10, an indoor heat-insulating layer 11, a waterproof and vapor barrier film 12, a roof slab 13, a leveling layer 14 and a protective layer 15. Generally speaking, the rock wool heat-insulating layer 7, the indoor heat-insulating layer 11 and the roof heat-insulating layer 9 enable the pipe structure emerging from the roof to have a double heat-insulating effect transversely; the outdoor waterproof coiled material 5, the additional waterproof coiled material 6 and the waterproof and vapor barrier film 12 enable the pipe structure emerging from the roof to have multiple waterproof and airtight effects longitudinally.

[0030] The casing 8 is vertically embedded in the roof slab 13 and communicates with the indoor and outdoor spaces, and the bottom of the casing 8 is flush with the bottom of the roof slab 13. In this preferred embodiment, the casing 8 is a section of UPVC round pipe with a diameter 200 mm wider than the diameter of the pipe 1. The pipe 1 is inserted into the casing 8 and its top is 500 mm higher than the casing 8. The ventilation cap 2 is provided at the top of the pipe 1 to block a part of the rainwater from entering the pipe 1. An annular area is enclosed between the casing 8 and the pipe 1, and the rock wool heat-insulating layer 7 is arranged in the annular area as the first pipe heat-insulating layer of the pipe structure emerging from the roof. The pipe 1 and the casing 8 are coaxially arranged so that the thickness of the rock wool heat-insulating layer 7 is 100 mm at each place. The casing 8 includes an annular top cover 801, the inner diameter of the top cover 801 is equal to the outer diameter of the pipe 1, and sealant is provided at the junction with the pipe 1 to prevent moisture from entering the rock wool heat-insulating layer 7.

[0031] The waterproof vapor barrier film 12 is pasted at the bottom of the rock wool insulation layer 7. The waterproof vapor barrier film 12 is folded down at the position where it meets the pipe 1 and extends downward along the outer wall of the pipe 1 for at least 40 mm to wrap the pipe 1. The part of the waterproof vapor barrier film 12 away from the pipe 1 extends outward and adheres to the bottom of the roof slab 13, and the distance from the outer edge of the waterproof vapor barrier film 12 to the pipe 1 is not less than 160 mm. In actual engineering, a layer of plastering mortar is built at the bottom of the waterproof vapor barrier film 12. In order to prevent the plastering mortar from falling off and affecting the normal operation of the waterproof vapor barrier film 12, a layer of alkali-resistant fiberglass mesh can be laid at the bottom of the waterproof vapor barrier film 12 to reinforce the plastering mortar.

[0032] The indoor part of the pipe 1 is wrapped with the indoor insulation layer 11, which serves as the second pipe insulation layer of the roof outlet pipe structure. The top of the indoor insulation layer 11 extends to the bottom of the waterproof vapor barrier film 12. In this preferred embodiment, the indoor insulation layer 11 is made of a rubber and plastic insulation board or centrifugal glass wool. To achieve a better insulation effect, the wrapping thickness is not less than 60 mm.

[0033] Now, a frame description is made for the roof structure layering of the roof outlet pipe structure in this preferred embodiment. As Figure 1 shown, in the vertical direction: a leveling layer 14 is poured on the top of the roof slab 13. Above the leveling layer 14, the vapor barrier coil 10, the roof insulation layer 9, and the outdoor waterproof coil 5 are laid from low to high respectively; on the top of the outdoor waterproof coil 5, a protective layer 15 is poured; in the area near the casing 8, an additional waterproof coil 6 is additionally laid at the bottom of the outdoor waterproof coil 5.

[0034] The roof insulation layer 9 is laid on the top of the leveling layer 14 and wraps the casing 8 from the side. The materials and thicknesses of the leveling layer 14 and the roof insulation layer 9 are in accordance with the conventional construction standards of building engineering and are not described restrictively in this article. Between the leveling layer 14 and the roof insulation layer 9, a layer of the vapor barrier coil 10 is laid as the vapor barrier layer of the roof outlet pipe structure. At the junction of the bottom of the roof insulation layer 9 and the casing 8, the vapor barrier coil 10 is folded up and extends upward along the outer wall of the casing 8 for at least 100 mm to wrap the casing 8.

[0035] In this preferred embodiment, the outdoor waterproof layer of the roof outlet pipe structure uses the outdoor waterproof coiled material 5, and the additional waterproof layer uses the additional waterproof coiled material 6. The outdoor waterproof coiled material 5 is laid on the top of the roof insulation layer 9. At the junction of the top of the roof insulation layer 9 and the casing 8, the outdoor waterproof coiled material 5 is folded upward and extends upward along the outer wall of the casing 8 by at least 250 mm to wrap the casing 8. To achieve a better waterproof effect, an additional layer of additional waterproof coiled material 6 is laid on the inner side of the outdoor waterproof coiled material 5, that is, the side closer to the roof insulation layer 9 or the casing 8. The material and thickness of the additional waterproof coiled material 6 are the same as those of the outdoor waterproof coiled material 5. At the junction of the top of the roof insulation layer 9 and the casing 8, the additional waterproof coiled material 6 extends horizontally by at least 250 mm and vertically to the top of the outdoor waterproof coiled material 5.

[0036] On the top of the outdoor waterproof coiled material 5, the protective layer 15 is cast with cement mortar to prevent the outdoor waterproof coiled material 5 and the roof insulation layer 9 from aging rapidly under the action of environmental factors. The protective layer 15 is provided with a drainage slope of 3% - 5%, and the thickness gradually decreases from the side close to the casing 8 to the surrounding.

[0037] As Figure 1 shown, a circle of the waterproof cover plate 4 and the fasteners 3 are arranged on the outer wall of the casing 8, and the height is at the closing part of the vertical extension section of the outdoor waterproof coiled material 5. In this preferred embodiment, the waterproof cover plate 4 is made of a section of galvanized steel plate with a thickness of 3 mm; the fasteners 3 include two iron hoops 301 with a width of 20 mm and a thickness of 3 mm and two groups of fastening bolts 302 with a diameter of 6 mm and a length of 20 mm. The top of the waterproof cover plate 4 is sleeved on the outer wall of the casing 8 flatly, and the iron hoops 301 are surrounded on the periphery. The fastening bolts 302 are arranged at the closed part of the iron hoops 301. By tightening the iron hoops 301, the cover plate and the casing 8 are hermetically connected. The bottom of the waterproof cover plate 4 projects outward to cover the top of the vertical extension section of the outdoor waterproof coiled material 5 to prevent precipitation from seeping into the outdoor waterproof coiled material 5 and the additional waterproof coiled material 6 from the closing part.

[0038] To improve the waterproof and heat preservation effect, sealant is applied at the closing parts of the waterproof and vapor barrier film 12, the outdoor waterproof coiled material 5, the additional waterproof coiled material 6 and the vapor barrier coiled material 10.

[0039] The technical solution of this embodiment will be further described below in combination with the construction steps of the roof outlet pipe structure:

[0040] (1) When pouring the roof slab 13, the casing 8 is embedded at the roof-piercing part of the pipe 1;

[0041] (2) Insert the pipeline 1 into the casing 8 and fix it at the axial position of the casing 8. Install a vent cap 2 at the top of the pipeline 1; fill rock wool in the annular area between the casing 8 and the pipeline 1; after the filling is completed, install the top cover 801 at the top of the casing 8 for sealing, and apply sealant at the joint between the top cover 801 and the pipeline 1;

[0042] (3) After the construction of the leveling layer 14 on the roof is completed, lay the vapor barrier sheet 10 on the leveling layer 14; the vapor barrier sheet 10 needs to be turned up and attached to the surface of the casing 8, and the turning-up height is not less than 100 mm; apply sealant at the closing of the vapor barrier sheet 10;

[0043] (4) Lay the roof insulation layer 9 above the vapor barrier sheet 10. Subsequently, at the joint between the top of the roof insulation layer 9 and the casing 8, lay an additional waterproof sheet 6; the additional waterproof sheet 6 extends horizontally and vertically by at least 250 mm; apply sealant at the closing of the horizontal extension section of the additional waterproof sheet 6;

[0044] (5) Lay a layer of outdoor waterproof sheet 5 on the top of the roof insulation layer 9; the outdoor waterproof sheet 5 needs to be turned up and attached to the surface of the casing 8, and the top extends to be flush with the additional waterproof sheet 6; apply sealant at the closing of the vertical extension section of the outdoor waterproof sheet 5;

[0045] (6) Install a waterproof cover plate 4 on the casing 8, and the installation height is at the closing of the outdoor waterproof sheet 5; fit an iron hoop 301 around the outer periphery of the waterproof cover plate 4, and insert a fastening bolt 302 at the closing of the iron hoop 301; tighten the fastening bolt 302 to fix the waterproof cover plate 4 on the casing 8;

[0046] (7) Pour a protective layer 15 with cement mortar on the outdoor waterproof sheet 5; the protective layer 15 is provided with a drainage slope of 3% - 5%;

[0047] (8) After confirming that the rock wool in the casing 8 is filled densely, paste a waterproof and vapor barrier film 12 at its bottom; one side of the waterproof and vapor barrier film 12 is attached to the pipeline 1, and the fitting length is not less than 40 mm, and the other side extends outward and is attached to the bottom of the roof slab 13, and the distance from the outer edge to the pipeline 1 is not less than 160 mm; apply sealant at the closing of the waterproof and vapor barrier film 12;

[0048] (9) Hang an alkali-resistant fiberglass mesh below the waterproof and vapor barrier film 12; after the concealed acceptance is qualified, plaster with cement mortar at the bottom of the waterproof and vapor barrier film 12.

[0049] (10) In the indoor part of the pipeline 1, the pipeline 1 is wrapped with rafter plastic insulation material or centrifugal glass wool, and the wrapping thickness is not less than 60 mm.

[0050] The above is only a preferred specific implementation method of the utility model, but the design concept of the utility model is not limited to this. Any technician familiar with the technical field who uses this concept to make non-substantial changes to the utility model within the technical scope disclosed by the utility model shall be deemed to infringe the protection scope of the utility model.

Claims

1. A low-energy consumption roof pipe airtight insulation structure, characterized by: It includes a roof panel, a roof insulation layer, a pipe, a casing, a first pipe insulation layer, a second pipe insulation layer, an indoor waterproof layer, an outdoor waterproof layer, a vapor barrier layer and a waterproof cover; The casing is pre-buried in the roof panel to connect indoor and outdoor spaces; the pipeline is inserted into the casing, and the top is not lower than the top of the casing; a first pipeline insulation layer is arranged in the annular area between the casing and the pipeline; The indoor waterproof layer is arranged at the bottom of the first pipe insulation layer; the indoor part of the pipe is wrapped with a second pipe insulation layer, and the top of the second pipe insulation layer extends to the bottom of the indoor waterproof layer; A roof insulation layer is laid above the roof panel, and the roof insulation layer laterally wraps the sleeve; the vapor barrier layer is laid at the bottom of the roof insulation layer; and the outdoor waterproof layer is laid on the top of the roof insulation layer; At the junction of the top of the roof insulation layer and the sleeve, the outdoor waterproof layer is folded upward and extends upward along the outer wall of the sleeve; The waterproof cover is arranged on the outer wall of the sleeve, and the waterproof cover is located at the closing part of the vertical extension section of the outdoor waterproof layer.

2. A low-energy consumption rooftop pipe airtight insulation structure according to claim 1, characterized in that: The sleeve is a section of UPVC round pipe.

3. The low-energy consumption rooftop pipe airtight insulation structure according to claim 1 is characterized by: The sleeve comprises an annular top cover, the inner diameter of which is equal to the outer diameter of the pipe; and a sealant is provided at the junction of the top cover and the pipe.

4. The low-energy consumption rooftop pipe airtight insulation structure according to claim 1 is characterized by: An additional waterproof layer is arranged on the inner side of the outdoor waterproof layer; at the junction of the top of the roof insulation layer and the sleeve, the additional waterproof layer extends a certain length in the horizontal direction and extends to the top of the outdoor waterproof layer in the vertical direction.

5. The low-energy consumption rooftop pipe airtight insulation structure according to claim 1 is characterized by: At the junction between the bottom of the roof insulation layer and the sleeve, the vapor barrier layer is folded and extends along the outer wall of the sleeve to wrap the sleeve.

6. The low-energy consumption rooftop pipe airtight insulation structure according to claim 1 is characterized by: The indoor waterproof layer is folded downward at the position where it intersects with the pipe, and extends downward along the outer wall of the pipe to wrap the pipe; the part of the indoor waterproof layer away from the pipe extends outward and is attached to the bottom of the roof panel.

7. The low-energy consumption rooftop pipe airtight insulation structure according to claim 1 is characterized by: The waterproof cover comprises a circle of waterproof cover plates and fasteners; the top of the waterproof cover plate is tightly connected to the sleeve through the fasteners, and the bottom is extended outwards and covers the top of the vertical extension section of the outdoor waterproof layer.

8. The low-energy consumption rooftop pipe airtight insulation structure according to claim 1 is characterized by: The structure also includes a leveling layer; the leveling layer is arranged between the roof panel and the roof insulation layer.

9. The low-energy consumption rooftop pipe airtight insulation structure according to claim 1, characterized in that: The structure also includes a protective layer; the protective layer is arranged above the outdoor waterproof layer; the protective layer is provided with a drainage slope, and the thickness gradually decreases from the side close to the casing to the surrounding areas.

10. The low-energy consumption rooftop pipe airtight insulation structure according to claim 1, characterized in that: The structure also includes a plurality of sealing adhesive layers; the sealing adhesive layers are arranged at the joints of the indoor waterproof layer, the outdoor waterproof layer and the vapor barrier layer.

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