Waterproof, heat-preservation and anti-condensation structure for external wall panel of air return passageway in clean area

Abstract

The utility model discloses a clean area air return passageway external wall panel waterproof heat preservation anti-condensation structure which comprises a clean area high-span roof cornice gutter and a low-span supporting area parapet wall, and a broken bridge heat preservation layer is arranged on the upper portion of a splicing seam between the bottom of the clean area high-span roof cornice gutter and the top of the low-span supporting area parapet wall. A telescopic color plate outer wall is fixedly arranged on the outer side of the low-span supporting area parapet wall, and the upper end of the telescopic color plate outer wall is fixedly connected with the bottom of the clean area high-span roof cornice gutter. The side, close to the air return passageway, of an abutted seam between the bottom of the high-span roof cornice gutter in the clean area and the top of the parapet wall in the low-span supporting area is sealed through an SBS waterproof roll with rock slices. The structure disclosed by the utility model has good waterproof performance, vapor permeability and vapor isolation performance, so that a building structure is not easy to dew.

Description

Technical Field

[0001] The utility model relates to the field of waterproof and thermal insulation at the eaves of a steel structure roof, and particularly relates to a waterproof, thermal insulation and anti-condensation structure for the outer wall panel of the return air duct in a clean area. Background Technique

[0002] The clean area of a high-tech electronic factory must be maintained at a specific temperature and humidity. Because a constant humidity can reduce the static charge accumulation on the surface of the clean area, thus preventing static electricity from damaging electronic products. Condensation is most likely to occur at the cold and heat bridges of the steel structure of the clean area roof and the area near the outer wall. Therefore, the clean area requires constant temperature and humidity. In winter, the temperature inside the factory building is high while the outside is low, and in summer, the temperature inside is low while the outside is high. There are support areas, clean areas and the return air duct between them. With the alternation of seasons, there is a large temperature difference between indoors and outdoors. Therefore, the waterproof, thermal insulation and anti-condensation design of the outer wall panel at the eaves of the factory building roof is crucial. Content of the Utility Model

[0003] The purpose of the utility model is to provide a waterproof, thermal insulation and anti-condensation structure for the outer wall panel of the return air duct in a clean area, so as to solve the problems put forward in the above background technique.

[0004] To achieve the above purpose, the utility model provides a waterproof, thermal insulation and anti-condensation structure for the outer wall panel of the return air duct in a clean area, which includes the eaves gutter of the high-span roof in the clean area and the parapet wall of the low-span support area. An insulating broken bridge layer is arranged above the joint between the bottom of the eaves gutter of the high-span roof in the clean area and the top of the parapet wall of the low-span support area. An expandable color steel plate outer wall is fixedly arranged on the outer side of the parapet wall of the low-span support area, and the upper end of the expandable color steel plate outer wall is fixedly connected with the bottom of the eaves gutter of the high-span roof in the clean area. And the joint between the bottom of the eaves gutter of the high-span roof in the clean area and the top of the parapet wall of the low-span support area is sealed by a SBS waterproof coiled material with rock chips on the side close to the return air duct.

[0005] In a preferred embodiment, the bottom plate of the eaves gutter of the high-span roof in the return air duct is a profiled steel sheet composite floor slab, which extends to the roof steel beam and is connected with the steel beam corbel, so as to form a flat surface at the bottom of the eaves gutter of the high-span roof in the clean area. A rubber and plastic insulation cotton thermal insulation layer is pasted on the bottom of the eaves gutter of the high-span roof in the clean area. The clean area wall on the other side of the return air duct adopts an anti-static metal rock wool sandwich panel wall.

[0006] In a preferred embodiment, the expandable color steel plate outer wall is a 0.6 mm thick color steel plate, which includes an upper L-shaped connecting part, a middle V-shaped convex part and a lower vertical connecting part. The L-shaped connecting part of the expandable color steel plate outer wall is fixed to the bottom of the eaves gutter of the high-span roof in the clean area by expansion bolts, the vertical connecting part is fixedly connected with the vertical surface of the parapet wall of the low-span support area by expansion bolts, and the end of the expandable color steel plate outer wall is sealed with structural sealant.

[0007] In a preferred embodiment, the broken-bridge insulation layer includes a rock wool board arranged on the inner side and a rock wool rod arranged on the outer side. The outer side of the rock wool rod is sealed by a SBS waterproof coil with rock chips. The SBS waterproof coil with rock chips is rolled into a semi-circular shape, and the two ends of the SBS waterproof coil with rock chips are fixedly connected to the bottom of the gutter at the eaves of the high-span roof in the clean area and the top of the parapet wall in the low-span support area respectively.

[0008] In a preferred embodiment, a layer of rubber and plastic insulation cotton insulation layer and a layer of anti-static metal rock wool sandwich panel are pasted on the outer surface of the roof steel beam at the top of the wall in the clean area.

[0009] In a preferred embodiment, rubber and plastic insulation cotton insulation layers are pasted on the inner sides of the gutter cross beam, the roof steel column and the roof steel beam.

[0010] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0011] In the present utility model, a broken-bridge insulation layer made of poor conductors (rock wool board, rock wool rod, SBS waterproof coil with rock chips, extruded polystyrene board) is used at the bottom of the gutter at the eaves of the high-span roof in the clean area and the upper part of the joint between the parapet wall of the low-span support area roof to block the thermal bridge. The outer side is enclosed with a color steel plate with a telescopic function to avoid cracking and poor sealing caused by the expansion and contraction of the outdoor temperature and the uneven settlement of the high and low spans. The waterproof coil can prevent water vapor from entering the return air duct, and at the same time prevent the water vapor from the condensation of the cold and heat bridge between the return air duct and the clean area from seeping into the building envelope structure; there is no flowing air at the joint, and when the outdoor temperature is high in summer and the temperature in the clean area is low, there will be no condensation on the inner surface of the thermal bridge part of the surface of the eaves and the return air duct in contact with the outdoor air; when the outdoor temperature is low in winter and the temperature in the clean area is high, there will be no condensation on the surface of the outer wall parapet wall in contact with the indoor air.

[0012] All structural components such as the return air duct in the present utility model, the bottom of the gutter at the eaves of the high-span roof in the clean area, the roof steel beam, and the roof steel column are pasted with rubber and plastic insulation cotton insulation layers. The wall of the clean area on the side close to the return air duct adopts an anti-static metal rock wool sandwich panel wall, and the outside of the steel structure component adjacent to it at the top is enclosed with an anti-static metal rock wool sandwich panel, and a rubber and plastic insulation cotton insulation layer is arranged inside to form an anti-condensation building envelope structure for the return air duct in the clean area. The structure of the present utility model has good waterproof performance, air permeability performance, and vapor barrier performance, making the building structure not easy to condense. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic structural diagram of the waterproof, heat insulation and anti-condensation structure of the outer wall panel of the return air duct in the clean area of the present utility model;

[0014] Figure 2 For Figure 1 The partial enlarged schematic diagram of part A in

[0015] Figure 3 Schematic diagram of the retractable color steel plate exterior wall structure of the present utility model;

[0016] Figure 4 Schematic diagram after the position adjustment of the anti-static metal rock wool sandwich panel wall of the present utility model.

[0017] Explanation of reference numerals:

[0018] 1-Clean area high-span roof eave gutter, 2-Low-span support area parapet wall, 3-Broken bridge insulation layer, 31-Rock wool board, 32-Rock wool rod, 4-Retractable color steel plate exterior wall, 41-L-shaped connecting part, 42-Middle V-shaped convex part, 43-Lower vertical connecting part, 6-SBS waterproof coiled material with rock chips, 8-Anti-static metal rock wool sandwich panel wall, 9-Rubber and plastic thermal insulation cotton insulation layer, 10-Anti-static metal rock wool sandwich panel, 101-Support area, 201-Return air duct, 301-Clean area. Specific implementation mode

[0019] Next, the technical solutions in the embodiments of the present utility model will be described clearly and completely. For the embodiments in the present utility model, all other embodiments obtained by those of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present utility model.

[0020] Embodiment 1

[0021] As Figures 1 to 4 shown, the waterproof, heat-insulating and anti-condensation structure of the exterior wall panel of the return air duct in the clean area in the preferred implementation mode of the present utility model includes the clean area high-span roof eave gutter 1 and the low-span support area parapet wall 2. A broken bridge insulation layer 3 is arranged on the upper part of the joint between the bottom of the clean area high-span roof eave gutter 1 and the top of the low-span support area parapet wall 2. A retractable color steel plate exterior wall 4 is fixedly arranged on the outer side of the low-span support area parapet wall 2, and the upper end of the retractable color steel plate exterior wall 4 is fixedly connected to the bottom of the clean area high-span roof eave gutter 1. The joint between the bottom of the clean area high-span roof eave gutter 1 and the top of the low-span support area parapet wall 2 is closed by an SBS waterproof coiled material with rock chips 6 on the side close to the return air duct 201.

[0022] Furthermore, the bottom plate of the clean area high-span roof eave gutter 1 in the return air duct 201 is a profiled steel sheet composite floor slab, which extends to the roof steel beam 11 and is connected to the steel beam corbel 12, so that a flat surface is formed at the bottom of the clean area high-span roof eave gutter 1. A rubber and plastic thermal insulation cotton insulation layer 9 is pasted on the bottom of the clean area high-span roof eave gutter 1. The clean area wall on the other side of the return air duct 201 adopts an anti-static metal rock wool sandwich panel wall 8.

[0023] Further, the retractable color steel plate exterior wall 4 is a 0.6-mm-thick color steel plate with retractable function. The retractable color steel plate exterior wall 4 includes an upper L-shaped connecting part 41, a middle V-shaped convex part 42, and a lower vertical connecting part 43. The L-shaped connecting part 41 of the retractable color steel plate exterior wall 4 is fixed to the bottom of the gutter at the eaves of the high-span roof in the clean area by expansion bolts 44. The vertical connecting part 43 is fixedly connected to the facade of the parapet wall 2 in the low-span support area by expansion bolts 44. And the ends of the retractable color steel plate exterior wall 4 are sealed with structural sealant. The design of the middle V-shaped convex part 42 enables the upper and lower deformation of the gap between the high and low-span roofs to be stretched freely, avoiding leakage caused by cracking due to deformation.

[0024] Further, the broken bridge insulation layer 3 includes a rock wool board 31 arranged on the inner side and a rock wool rod 32 arranged on the outer side. The outer side of the rock wool rod 32 is closed by a SBS waterproof coil with rock chips 6. Among them, the SBS waterproof coil with rock chips 6 is rolled into a semi-circular shape, and the upper and lower deformation of the gap between the high and low-span roofs can be stretched freely, avoiding leakage caused by condensation due to the temperature difference between the inside and outside. And the two ends of the SBS waterproof coil with rock chips 6 are respectively hot melt welded to the bottom of the gutter at the eaves of the high-span roof in the clean area and the top of the parapet wall 2 in the low-span support area.

[0025] Further, a layer of rubber and plastic insulation cotton insulation layer 9 and a layer of antistatic metal rock wool sandwich panel 10 are pasted on the outer surface of the roof steel beam 11 at the top of the clean area wall. Rubber and plastic insulation cotton insulation layers 9 are pasted on the inner sides of the gutter cross beam 13, the roof steel column 14, and the roof steel beam 11.

[0026] Example 2

[0027] Step 1: Construction of the insulation at the joint between the bottom of the gutter at the eaves of the high-span roof in the clean area and the parapet wall 2 in the low-span support area, and hot melt pasting construction of the SBS waterproof coil with rock chips 6 on the inner side of the joint. After the construction of the SBS waterproof coil with rock chips 6 is completed, install the rock wool rod 32 (select rock wool rods 32 with different diameters according to the gap size and fill the rock wool board 31. Enclose the outer side with the retractable color steel plate exterior wall 4. The L-shaped connecting part 41 of the retractable color steel plate exterior wall 4 is fixed to the bottom of the gutter at the eaves of the high-span roof in the clean area by expansion bolts 44. The vertical connecting part 43 is fixedly connected to the facade of the parapet wall 2 in the low-span support area by expansion bolts 44. The ends of the retractable color steel plate exterior wall 4 are sealed with structural sealant.

[0028] Step 2: Paste thermal insulation materials on the structural members such as the bottom of the gutter in the return air duct, the gutter cross beam, the roof steel column, and the steel beam.

[0029] Step 3: Installation of the antistatic metal rock wool sandwich panel wall 8 on the side of the return air duct close to the clean area. First, paste the rubber and plastic insulation cotton insulation layer on the top steel beam and the top of the floor slab, and then enclose the outer side with the antistatic metal rock wool sandwich panel 10.

[0030] Step 4: Installation of the light steel keel partition wall 15 on the side of the return air duct far from the clean area.

[0031] In previous projects, the installation position of the anti-static metal rock wool sandwich panel 10 was flush with the outer edge of the bottom beam of the gutter, and the top of the anti-static metal rock wool sandwich panel 10 was connected to the gutter beam 13. Compared with the conventional method, in the third step of this utility model patent, the anti-static metal rock wool sandwich panel wall 8 is translated towards the clean area ( Figure 4 The arrow in the figure indicates the moving direction), and the anti-static metal rock wool sandwich panel wall 8 is moved to be flush with the outer edge of the roof steel beam 11, and the top of the anti-static metal rock wool sandwich panel wall 8 is connected to the roof steel beam 11. Thus, the clean control of the core area of clean production is carried out in advance, so that the construction of the clean area does not need to wait until the construction of the non-core area opposite the return air duct is completed before constructing this wall, accelerating the construction progress, and the two sides can be constructed simultaneously without affecting each other.

[0032] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A waterproof, heat-insulating and anti-condensation structure for the outer wall panel of the return air duct in the clean area, comprising the eaves gutter (1) of the high-span roof in the clean area and the parapet wall (2) of the low-span support area, characterized in that: There is a broken bridge insulation layer (3) arranged above the joint between the bottom of the gutter at the eaves of the high-span roof in the clean area (1) and the top of the parapet wall of the low-span support area (2). An expandable color steel plate exterior wall (4) is fixedly arranged on the outer side of the parapet wall of the low-span support area (2). The upper end of the expandable color steel plate exterior wall (4) is fixedly connected to the bottom of the gutter at the eaves of the high-span roof in the clean area (1). The joint between the bottom of the gutter at the eaves of the high-span roof in the clean area (1) and the top of the parapet wall of the low-span support area (2) is sealed by a SBS waterproof coiled material with chips (6) on the side close to the return air duct (201).

2. The waterproof, heat-insulating and anti-condensation structure of the outer wall panel of the return air duct in the clean area according to claim 1, characterized in that: The bottom plate of the gutter at the eaves of the high-span roof in the clean area (1) in the return air duct (201) is a profiled steel sheet composite floor slab, which extends to the roof steel beam (11) and is connected to the steel beam corbel (12), so that a flat surface is formed at the bottom of the gutter at the eaves of the high-span roof in the clean area (1). A rubber and plastic insulation cotton insulation layer (9) is pasted on the bottom of the gutter at the eaves of the high-span roof in the clean area (1). The clean area wall on the other side of the return air duct (201) adopts an anti-static metal rock wool sandwich panel wall (8).

3. The waterproof, heat-insulating and anti-condensation structure of the outer wall panel of the return air duct in the clean area according to claim 2, wherein: The expandable color steel plate exterior wall (4) is a 0.6 mm thick color steel plate, including an upper L-shaped connecting part (41), a middle V-shaped convex part (42) and a lower vertical connecting part (43). The L-shaped connecting part (41) of the expandable color steel plate exterior wall (4) is fixed to the bottom of the gutter at the eaves of the high-span roof in the clean area (1) by expansion bolts (44). The vertical connecting part (43) is fixedly connected to the vertical surface of the parapet wall of the low-span support area (2) by expansion bolts (44). The end of the expandable color steel plate exterior wall (4) is sealed with structural sealant.

4. The waterproof, heat-insulating and dew-condensation-proof structure of the outer wall panel of the return air duct in the clean area according to claim 3, characterized in that: The broken bridge insulation layer (3) includes a rock wool board (31) arranged on the inner side and a rock wool rod (32) arranged on the outer side. The outside of the rock wool rod (32) is sealed by a SBS waterproof coiled material with chips (6). Among them, the SBS waterproof coiled material with chips (6) is rolled into a semi-circular shape, and the two ends of the SBS waterproof coiled material with chips (6) are respectively fixedly connected to the bottom of the gutter at the eaves of the high-span roof in the clean area (1) and the top of the parapet wall of the low-span support area (2).

5. The waterproof, heat-insulating and anti-condensation structure of the outer wall panel of the return air duct in the clean area according to claim 4, characterized in that: A layer of rubber and plastic insulation cotton insulation layer (9) and a layer of anti-static metal rock wool sandwich panel (10) are pasted on the outer surface of the roof steel beam (11) at the top of the clean area wall.

6. The waterproof, heat-insulating and anti-condensation structure of the outer wall panel of the return air duct in the clean area according to claim 5, wherein: The inner sides of the gutter cross beam (13), the roof steel column (14) and the roof steel beam (11) are all pasted with rubber and plastic insulation cotton insulation layer (9).

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