Heat preservation and fire prevention structure of air pipe

Abstract

The utility model provides an air pipe heat preservation fireproof structure which comprises air pipes which are detachably connected through bolts. A heat preservation layer is arranged on the peripheral side of the air pipe and comprises a plurality of sets of heat preservation nails and a plurality of sets of glass wool boards, the heat preservation nails are installed on the peripheral side of the air pipe through adhesives, and each set of glass wool boards are arranged on two adjacent sets of heat preservation nails in a clamped mode. Glass wool cloth is further arranged on the peripheral side of the air pipe and wound on the heat preservation layer, and a fireproof coating is further arranged on the outer surface of the glass wool cloth. According to the air pipe heat preservation fireproof structure, the multiple sets of glass panels are arranged on the peripheral side of the air pipe and installed on the air pipe through the heat preservation nails to form a heat preservation layer, heat transfer can be effectively prevented, the heat preservation effect of the air pipe is improved, and energy loss is reduced. The glass wool cloth is wound on the thermal insulation layer, and the glass wool cloth is soaked in the fireproof coating before being wound, so that the thermal insulation layer has good fireproof performance; and meanwhile, the fireproof coating is independently arranged on the outer surface of the glass wool cloth, so that additional fireproof protection is provided.

Description

Technical Field

[0001] The utility model belongs to the technical field of air ducts, and more specifically, particularly relates to a heat-insulating and fire-proof structure of an air duct. Background Art

[0002] Air duct refers to a pipe system used to transport air, which is usually used in the air conditioning, ventilation and heating systems of buildings. Air ducts can effectively introduce fresh air into the room, while exhausting exhaust gas and moisture, improving indoor air quality, and providing necessary support for the air conditioning, ventilation and heating systems of buildings. However, the traditional air duct has a simple structure and can only perform simple gas transportation. In the heating transportation, it cannot provide effective insulation measures, and the heat will be dissipated into the surrounding environment through the pipe wall, resulting in energy loss during the transmission process, thereby reducing the efficiency of heating. At the same time, traditional air ducts do not have effective fire prevention functions. When a fire occurs, the air duct may become a channel for the spread of fire, accelerating the spread of the fire, and posing a serious threat to people's lives and property safety. Utility Model Content

[0003] In order to solve the above technical problems, the utility model provides a heat-insulating and fire-proof structure for air ducts to solve the technical problems in the prior art that traditional air ducts cannot provide effective heat-insulating measures during heating transportation, which easily leads to energy loss; at the same time, when a fire occurs, there is no effective fire-proof function, which easily causes the fire to spread in the air duct and accelerates the spread of the fire.

[0004] The purpose and effect of the air duct insulation and fireproof structure of the utility model are achieved by the following specific technical means:

[0005] The air duct heat-insulating fireproof structure includes an air duct, which is detachably connected by bolts; an insulation layer is arranged around the air duct, and the insulation layer includes multiple groups of insulation nails and multiple groups of glass wool boards, the insulation nails are installed on the air duct by adhesive, and each group of glass wool boards is clamped on two adjacent groups of insulation nails; glass fiber cloth is also arranged around the air duct, and the glass fiber cloth is wound on the insulation layer, and a fireproof coating is also arranged on the outer surface of the glass fiber cloth.

[0006] According to a preferred embodiment, two groups of connecting blocks are provided at one end of the air duct, and connecting grooves are provided on the connecting blocks, and two groups of connecting plates are provided at the other end of the air duct; the connecting plates of one group of the air ducts are clamped in the connecting grooves of the other group of the air ducts, and multiple groups of connecting holes are provided on the connecting plates and the connecting grooves.

[0007] According to a preferred embodiment, multiple groups of connecting parts are provided at both ends of the air duct, and the connecting parts of two groups of the air ducts are connected to form a connecting sleeve; the bolt passes through the connecting sleeve and is clamped in the connecting hole, and the air ducts are detachably connected.

[0008] According to a preferred embodiment, a fixing ring 7 is provided on the air duct, and the fixing ring 7 is located at the connection between the air ducts; the fixing ring 7 is provided with a fixing sleeve corresponding to the connecting hole, and the bolt passes through the fixing sleeve and is clamped in the connecting hole, so that the air ducts are detachably connected.

[0009] According to a preferred embodiment, the thermal insulation nail is installed on the bolt, and the glass wool board is installed at the connection of the air duct through the thermal insulation nail.

[0010] According to a preferred embodiment, a plurality of groups of PVC external corner protection strips are arranged between the glass fiber cloth and the thermal insulation layer, and the PVC external corner protection strips are arranged at the four corners of the thermal insulation layer.

[0011] According to a preferred embodiment, a joint is formed between the two groups of glass wool boards, and aluminum foil glue is provided on the joint.

[0012] According to a preferred embodiment, both ends of the glass fiber cloth are adhered to the thermal insulation layer by glue.

[0013] According to a preferred embodiment, the fire retardant coating is a water-based fire retardant coating.

[0014] Compared with the prior art, the utility model has the following beneficial effects:

[0015] 1. The duct insulation and fireproof structure provides good insulation and fireproof performance by setting up insulation layer, glass cloth and fireproof coating. The insulation nails in the insulation layer are firmly fixed to the outer wall of the duct by adhesive, and the glass wool board is installed on the side of the duct by insulation nails, which can effectively prevent the transfer of heat, improve the insulation effect of the duct and reduce energy loss. The winding of glass cloth increases the stability and wind resistance of the structure. Before winding the glass cloth, it is soaked in fireproof coating to make it have good fireproof performance; at the same time, a fireproof coating is also separately provided on the outer surface of the glass cloth to provide additional fire protection, ensuring that the duct can delay the spread of fire in the event of a fire, and buy time for personnel evacuation and fire fighting.

[0016] 2. The duct insulation and fireproof structure is provided with PVC external corner protection strips between the glass cloth and the insulation layer. The PVC external corner protection strips are clamped on the four corners of the insulation layer. The PVC external corner protection strips can effectively avoid deformation of the insulation layer caused by the winding glass cloth, which results in poor appearance of the edges and corners. At the same time, the PVC external corner protection strips increase the tightness of the overall insulation of the duct and reduce the risk of condensation in the duct. After the insulation of the duct is completed, the edges and corners are clear, neat and beautiful. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the structure of the utility model after assembly.

[0018] Figure 2 It is a schematic diagram of the structure after disassembly of the first embodiment of the utility model.

[0019] Figure 3 It is a schematic diagram of the structure of the second embodiment of the utility model after being disassembled.

[0020] Figure 4 yes Figure 2 A partial enlarged view of area a.

[0021] Figure 5 It is a structural diagram of the air duct.

[0022] In the figure, the corresponding relationship between the component names and the figure numbers is as follows:

[0023] 11. Air duct; 12. Connecting block; 13. Connecting groove; 14. Connecting plate; 15. Connecting hole; 16. Connecting piece; 17. Fixing ring; 18. Fixing sleeve; 21. Insulation nail; 22. Glass wool board; 23. PVC external corner protection strip; 31. Glass cloth; 32. Fire retardant coating. DETAILED DESCRIPTION

[0024] The following is a further detailed description of the implementation of the present invention in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the technical solution of the present invention, but cannot be used to limit the protection scope of the present invention.

[0025] Embodiment 1:

[0026] like Figure 1 , 2As shown, the utility model provides an air duct insulation and fireproof structure, including an air duct 11, which is detachably connected to each other by bolts. An insulation layer is arranged on the peripheral side of the air duct 11, and the insulation layer is composed of multiple groups of insulation nails 21 and multiple groups of glass wool boards 22. The insulation nails 21 are firmly installed on the peripheral side of the air duct 11 by adhesive, and each group of glass wool boards 22 is clamped between two adjacent groups of insulation nails 21. These insulation nails 21 are evenly distributed on the peripheral side of the air duct 11 at predetermined intervals. Through the fixation of the adhesive, the insulation nails 21 are tightly combined with the air duct 11, ensuring the firm installation of the insulation layer. The glass wool board 22 is clamped on the insulation nails 21 to form a uniform and sealed insulation layer. The glass wool board 22 has excellent thermal insulation performance, can effectively prevent the transfer of heat, and ensure that the air duct system maintains a stable temperature during operation. The circumference of the air duct 11 is also covered with a layer of glass cloth 31, which is tightly wound on the insulation layer. On the outer surface of the glass cloth 31, a fireproof coating 32 is also coated, which provides additional safety for the entire air duct system. The glass cloth 31 is woven from fine glass fibers and has excellent corrosion resistance, high temperature resistance and tensile strength. By wrapping the glass cloth 31 on the insulation layer, it can not only increase the stability of the insulation layer, but also provide certain mechanical protection to prevent the insulation layer from being eroded and damaged by the external environment. Before wrapping the glass cloth 31, it is soaked in fireproof paint to give it good fireproof performance; at the same time, the fireproof coating 32 further improves the safety of the air duct system. This coating uses advanced fireproof materials, which can effectively prevent the spread of fire when a fire occurs and protect the air duct system from fire. The fireproof coating 32 has excellent thermal insulation performance, can delay the transfer of heat, and buy precious time for personnel evacuation and fire fighting.

[0027] like Figures 2 to 4As shown, two groups of connecting blocks 12 are provided at one end of the air duct 11, and connecting grooves 13 are provided on these connecting blocks 12. At the other end of the air duct 11, two groups of connecting plates 14 are provided. The connecting plates 14 of one group of air ducts 11 are clamped in the connecting grooves 13 of the other group of air ducts 11, forming a nested structure to ensure the tight connection between the air ducts 11. Multiple groups of connecting holes 15 are provided on the connecting plates 14 and the connecting grooves 13, and the existence of these connecting holes 15 makes the connection of the air duct 11 more firm and stable. Multiple groups of connecting pieces 16 are provided at both ends of the air duct 11. By connecting the connecting pieces 16 of two different groups of air ducts 11 to each other, a connecting sleeve is formed, which provides a solid foundation for the connection of the air duct 11. The bolt passes through the connecting sleeve and is clamped in the connecting hole 15, ensuring the firmness and stability of the connection. This detachable connection method allows the air ducts 11 to be easily assembled and disassembled. Insulation nails 21 are also installed on the bolts, and the glass wool board 22 is installed at the connection of the air duct 11 through the insulation nails 21. The presence of the insulation nails 21 ensures the stable installation of the glass wool board 22. They are tightly fixed on the bolts, providing insulation performance for the connection of the air duct 11.

[0028] Multiple groups of PVC external corner protection strips 23 are arranged between the glass wool cloth 31 and the insulation layer, providing reliable protection for the four corners of the insulation layer. The PVC external corner protection strips 23 are arranged at the four corners of the insulation layer, and they fit tightly together to form a protective structure. Not only does it ensure the stability and firmness of the insulation layer, but it can also effectively prevent the external corners from being damaged and eroded by the outside world. At the same time, the PVC external corner protection strips 23 can effectively avoid the deformation of the insulation layer caused by the winding glass wool cloth 31, resulting in poor angular molding of the appearance. At the same time, the setting of the PVC external corner protection strips 23 increases the tightness of the overall insulation of the air duct 11, reduces the risk of condensation of the air duct 11, and the air duct 11 is angular, neat and beautiful after the insulation is completed. A joint is formed between the two groups of glass wool boards 22, and aluminum foil glue is arranged on the joint. The application of aluminum foil glue provides excellent sealing performance for the joint, effectively preventing the penetration of gas and moisture. Both ends of the glass wool cloth 31 are firmly glued to the insulation layer by glue, ensuring a close combination between them. Carefully apply the glue evenly on both ends of the glass cloth 31 to ensure that every part is fully covered. Then, carefully press the glass cloth 31 on the insulation layer so that it fits tightly with the insulation layer without bubbles and gaps. The fire retardant coating 32 uses a water-based fire retardant coating, which uses water as a dispersion medium and is environmentally friendly, non-toxic and pollution-free. It does not produce irritating odor during use and is friendly to the human body and the environment. It also has good fireproof properties. It can form a protective film when a fire occurs, effectively preventing the spread of flames and the transfer of heat, and buying precious time for the evacuation of personnel and the protection of property.

[0029] Embodiment 2:

[0030] Based on the air duct insulation and fireproof structure provided in the first embodiment of the present application, the second embodiment of the present application proposes an air duct insulation and fireproof structure. This second embodiment is only a preferred embodiment of the first embodiment, and the implementation of the second embodiment will not affect the independent implementation of the first embodiment. The second embodiment of the present utility model will be further described below.

[0031] like Figure 3 As shown, a fixing ring 17 is sleeved on the air duct 11 and placed at the connection of the air duct 11. Corresponding to the connection hole 15 is a fixing sleeve 18 on the fixing ring 17, which provides a stable passage for the bolt. When the bolt passes through the fixing sleeve 18 and is stuck in the connection hole 15, a stable connection is formed. This detachable connection method allows the air ducts 11 to be easily assembled and disassembled, providing convenience for maintenance and replacement.

[0032] The difference between the second embodiment and the first embodiment is that a fixing ring 17 is provided at the connection of the air duct 11, which can significantly enhance the connection stability between the air ducts 11. The presence of the fixing ring 17 not only provides additional support and fixing, but also ensures the firmness of the air duct 11 at the connection. This can effectively reduce the movement and loosening of the air duct 11 during use, thereby improving the reliability and stability of the entire system. At the same time, the fixing ring 17 also plays an important role in ensuring the sealing of the connection of the air duct 11. It can effectively prevent gas or liquid from leaking from the gap at the connection of the air duct 11, ensuring the efficient transmission and utilization of energy. The remaining conditions are consistent with those of the first embodiment, so this embodiment will not be repeated.

[0033] The basic principle and main features of the present invention and the advantages of the present invention are shown and described above. For those skilled in the art, it is obvious that the present invention is not limited to the details of the above exemplary embodiments.

Claims

1. An air duct heat-insulating and fire-proof structure, comprising an air duct (11), characterized in that: The air ducts (11) are detachably connected by bolts; a heat-insulating layer is arranged around the air duct (11), and the heat-insulating layer comprises a plurality of groups of heat-insulating nails (21) and a plurality of groups of glass wool boards (22); the heat-insulating nails (21) are installed around the air duct (11) by means of an adhesive, and each group of glass wool boards (22) is clamped on two adjacent groups of heat-insulating nails (21); a glass fiber cloth (31) is also arranged around the air duct (11), and the glass fiber cloth (31) is wound on the heat-insulating layer; a fire-proof coating (32) is also arranged on the outer surface of the glass fiber cloth (31).

2. The air duct heat insulation and fireproof structure according to claim 1, characterized in that: Two groups of connection blocks (12) are provided at one end of the air duct (11), and connection grooves (13) are provided on the connection blocks (12); two groups of connection plates (14) are provided at the other end of the air duct (11); the connection plates (14) of one group of the air ducts (11) are clamped in the connection grooves (13) of the other group of the air ducts (11), and a plurality of connection holes (15) are provided on the connection plates (14) and the connection grooves (13).

3. The air duct heat insulation and fireproof structure according to claim 2 is characterized in that: Multiple groups of connecting pieces (16) are provided at both ends of the air duct (11); the connecting pieces (16) of two groups of the air ducts (11) are connected to form a connecting sleeve; the bolt passes through the connecting sleeve and is clamped in the connecting hole (15), so that the air ducts (11) are detachably connected.

4. The air duct heat insulation and fireproof structure according to claim 2, characterized in that: The air duct (11) is sleeved with a fixing ring (17), and the fixing ring (17) is located at the connection between the air ducts (11); the fixing ring (17) is provided with a fixing sleeve (18) corresponding to the connection hole (15), and the bolt passes through the fixing sleeve (18) and is clamped in the connection hole (15), so that the air ducts (11) are detachably connected.

5. The air duct heat insulation and fireproof structure according to claim 3 or 4, characterized in that: The thermal insulation nail (21) is installed on the bolt, and the glass wool board (22) is installed at the connection position of the air duct (11) through the thermal insulation nail (21).

6. The air duct heat insulation and fireproof structure according to claim 1, characterized in that: A plurality of groups of PVC external corner protection strips (23) are arranged between the glass fiber cloth (31) and the thermal insulation layer, and the PVC external corner protection strips (23) are clamped at the four corners of the thermal insulation layer.

7. The air duct heat insulation and fireproof structure according to claim 6, characterized in that: A joint is formed between the two groups of glass wool boards (22), and aluminum foil glue is provided on the joint.

8. The air duct heat insulation and fireproof structure according to claim 7, characterized in that: Both ends of the glass fiber cloth (31) are adhered to the thermal insulation layer by glue.

9. The air duct heat insulation and fireproof structure according to claim 8, characterized in that: The fireproof coating (32) is a water-based fireproof coating.

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