Industrial integrated composite air pipe
By installing fire-resistant insulation boards and positioning blocks in composite air ducts, combined with L-shaped or V-shaped connecting flanges, multi-angle connections of composite air ducts are achieved, solving the problem of non-adjustable installation angles of existing composite air ducts, improving wind resistance and heat insulation, and making them more adaptable.
Patent Information
- Application Number
- CN202520240829.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-14
- Publication Date
- 2025-12-12
- Estimated Expiration
- 2035-02-14
AI Technical Summary
Existing composite ducts can only be installed at some common angles during connection, and the installation angle cannot be adjusted, resulting in limited applicability and difficulty in adapting to complex usage environments.
An integrated industrial composite air duct was designed. By setting a fire-resistant insulation board on the surface of the air duct substrate and setting positioning blocks and positioning grooves at the connection, positioning blocks and positioning grooves are set on the side of the fire-resistant insulation board. Combined with L-shaped or V-shaped connecting flanges, connections at different angles can be achieved.
It improves the wind resistance and heat insulation of composite air ducts, enhances fire resistance, and enables them to adapt to complex operating environments, thus expanding their applicability.
Smart Images

Figure CN223662807U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to composite air pipe technical field especially industrial integration composite air pipe. BACKGROUND
[0002] Composite air pipe is represented by calcium silicate board and rock wool composite, and is a kind of calcium silicate composite air pipe system made of calcium silicate board fireproof and heat-insulating material, which can completely replace traditional air pipe, air valve, tuyere, static pressure tank and heat-insulating material in smoke control system.Composite air pipe is a new generation of environmental protection and energy saving type smoke exhaust air pipe to replace iron sheet air pipe and glass fiber air pipe.It is made of two layers of high-strength inorganic material and one layer of thermal insulation material as base material, and is combined and connected by adhesive technology and special structure.Composite air pipe has been widely used in various fields and is suitable for various spaces, such as commercial places, sports venues, electronic and food factory production sites, supermarkets and other business sites, which can be directly connected with air fan equipment outlet or iron sheet air pipe and composite air pipe.However, the existing composite air pipe can only be connected at some common angles, and the installation angle cannot be adjusted, so the applicability is poor, and therefore the present application provides an industrial integration composite air pipe with adjustable installation angle. SUMMARY
[0003] The utility model discloses an industrial integration composite air pipe, which can improve the wind resistance, heat insulation and fire resistance of the composite air pipe by setting the heat insulation layer and the fireproof and heat-insulating layer, and the connecting flange can realize the connection of composite air pipes with different angles, has wide applicability and can adapt to complex use environment.
[0004] To achieve the above-mentioned purpose, the utility model provides an industrial integration composite air pipe, which comprises an air pipe base body, a fireproof and heat-insulating plate is arranged on the surface of the air pipe base body, connecting flanges for connection are arranged at both ends of the air pipe base body, strip-shaped fixing holes and circular fixing holes for fixation are arranged on the surface of the connecting flanges, positioning blocks and positioning grooves for positioning are arranged on the side edges of the fireproof and heat-insulating plate, and the positioning blocks and the positioning grooves are matched.
[0005] Preferably, the air pipe base body comprises a plurality of fireproof and heat-insulating plates, and adjacent fireproof and heat-insulating plates are connected by sealing strips.
[0006] Preferably, the connecting flange comprises a plurality of connecting plates, the connecting plates are arranged in L shape or V shape, the circular fixing holes are arranged on the surface of the fixing part, and the strip-shaped fixing holes are arranged on the surface of the connecting part.
[0007] Preferably, the connecting plate comprises a fixing part and a connecting part, the fixing part and the connecting part are rotationally arranged, and the included angle between the fixing part and the connecting part is 0-180°.
[0008] Preferably, the positioning block is arranged on the side edge of the fireproof and heat-insulating plate, and a clamping groove is arranged on the side surface of the positioning block.
[0009] Preferably, the positioning groove is arranged at the side edge of the refractory insulation board, the inner side of the positioning groove is provided with a cavity, the cavity is internally provided with a clamping ball, the inner side of the clamping ball is provided with a spring, and the spring is arranged in the cavity.
[0010] Preferably, a stop edge for preventing the clamping ball from falling is arranged at the opening of the cavity.
[0011] Preferably, the refractory insulation board is sequentially provided with a protective layer one, a refractory insulation layer, a heat insulation layer and a protective layer two from inside to outside.
[0012] Therefore, the industrial integrated composite air pipe adopting the above structure can improve the wind resistance, heat insulation and fire resistance of the composite air pipe by arranging the heat insulation layer and the refractory insulation layer, and the connecting flange can realize the connection of the composite air pipes with different angles, has wide applicability and can adapt to complex use environments.
[0013] The technical scheme of the utility model will be further described in detail below with reference to the drawings and embodiments. BRIEF DESCRIPTION OF DRAWINGS
[0014] Figure 1 It is a whole structure schematic view of the utility model industrial integrated composite air pipe embodiment;
[0015] Figure 2 It is Figure 1 It is an enlarged view of A;
[0016] Figure 3 It is Figure 1 It is an enlarged view of B;
[0017] Figure 4 It is a connecting plate schematic view of the utility model industrial integrated composite air pipe embodiment;
[0018] Figure 5 It is a clamping ball schematic view of the utility model industrial integrated composite air pipe embodiment;
[0019] Figure 6 It is a refractory insulation board structure schematic view of the utility model industrial integrated composite air pipe embodiment.
[0020] REFERENCE SIGNS
[0021] 1, air pipe base body; 2, connecting flange; 3, sealing strip; 4, strip-shaped fixing hole; 5, refractory insulation board; 6, clamping groove; 7, positioning block; 8, positioning groove; 9, circular fixing hole; 10, fixed part; 11, connecting part; 12, clamping ball; 13, stop edge; 14, spring; 15, cavity; 16, protective layer one; 17, refractory insulation layer; 18, heat insulation layer; 19, protective layer two. DETAILED DESCRIPTION
[0022] The technical solution of this utility model will be further described below with reference to the accompanying drawings and embodiments.
[0023] Unless otherwise defined, the technical or scientific terms used in this utility model shall have the ordinary meaning understood by one of ordinary skill in the art to which this utility model pertains. The terms "first," "second," and similar terms used in this utility model do not indicate any order, quantity, or importance, but are merely used to distinguish different components. Terms such as "comprising" or "including" mean that the element or object preceding the word encompasses the elements or objects listed following the word and their equivalents, without excluding other elements or objects. Terms such as "connected" or "linked" are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect. Terms such as "upper," "lower," "left," and "right" are used only to indicate relative positional relationships; when the absolute position of the described object changes, the relative positional relationship may also change accordingly.
[0024] Example
[0025] In this utility model, the integrated fire-resistant duct body, frame and fixing materials, sealing gaskets, insulation materials, adhesives (or bonding agents), etc., should all be Class A non-combustible. The ignition test should meet the requirements of GB 50243-2016. The non-combustible performance test should meet the requirements of GB 8624-2012. At the joints where plates are connected to form duct sections, at the connections between duct sections (including integrated fire-resistant ducts of the same or different specifications, ordinary steel plate ducts, and double-sided color steel insulated composite ducts), fans, air valves, silencers, static pressure boxes, elbows, reducers, civil engineering ducts, etc., and at the connections where air outlets are installed on the integrated fire-resistant duct, the interfaces must be tight and effective, the insulation material must not be exposed, and problems such as cold bridges, thermal bridges, and condensation should not occur.
[0026] like Figure 1 As shown, the industrial integrated composite air duct includes a duct base 1, the surface of which is covered with a fire-resistant insulation board 5. Connecting flanges 2 are provided at both ends of the duct base 1 for connection. The surface of the connecting flanges 2 is provided with strip-shaped fixing holes 4 and circular fixing holes 9 for fixing. Positioning blocks 7 and positioning grooves 8 are provided on the sides of the fire-resistant insulation board 5 for positioning, and the positioning blocks 7 and positioning grooves 8 are compatible. The duct base 1 includes several fire-resistant insulation boards 5, and adjacent fire-resistant insulation boards 5 are sealed and connected by a sealing strip 3. The sealing strip 3 improves the sealing performance of the composite air duct.
[0027] like Figure 1 and Figure 4As shown, the connecting flange 2 includes several connecting plates, which are L-shaped or V-shaped. Circular fixing holes 9 are provided on the surface of the fixing part 10, and strip-shaped fixing holes 4 are provided on the surface of the connecting part 11. The strip-shaped fixing holes 4 allow for fine-tuning of the connection position of the two duct bases 1 when connecting them, resulting in better sealing. The connecting plate includes a fixing part 10 and a connecting part 11, which are rotatably mounted. The included angle between the fixing part 10 and the connecting part 11 is 0-180°. Figure 4 The included angle between the fixing part 10 and the connecting part 11 is 90°. The rotating fixing part 10 and the connecting part 11 can be adjusted to allow the connecting flange 2 to connect to composite air ducts at different angles, thereby improving the applicability of the composite air duct and enabling the composite air duct to adapt to complex operating environments.
[0028] like Figure 2 As shown, the positioning block 7 is disposed on the side of the fire-resistant insulation board 5, and the side of the positioning block 7 is provided with a slot 6.
[0029] like Figure 3 and Figure 5 As shown, the positioning groove 8 is located on the side of the fire-resistant insulation board 5. A cavity 15 is provided inside the positioning groove 8, and a retaining ball 12 is placed inside the cavity 15. A spring 14 is located inside the retaining ball 12, and the spring 14 is also located inside the cavity 15. A retaining edge 13 is provided at the opening of the cavity 15 to prevent the retaining ball 12 from falling out. The retaining ball 12 is compatible with the retaining groove 6. During installation, the positioning block 7 is inserted into the positioning groove 8, the spring 14 is compressed, and the spring 14 pushes out the retaining ball 12. The retaining ball 12 presses against the retaining groove 6, and the positioning block 7 is locked in the positioning groove 8, preventing the composite duct from shaking, thus allowing for the next step of fixing the composite duct.
[0030] like Figure 6 As shown, the fire-resistant insulation board 5 is configured from the inside out as follows: protective layer 16, fire-resistant insulation layer 17, heat insulation layer 18, and protective layer 2 19. The protective layers protect the composite air duct, while the fire-resistant insulation layer 17 and the heat insulation layer 18 can improve the wind resistance, heat insulation, and fire resistance of the composite air duct.
[0031] In use, insert the positioning block 7 into the positioning groove 8, and the locking ball 12 presses against the locking groove 6. The positioning block 7 is locked in the positioning groove 8 to prevent the composite air duct from shaking. Then, determine the opening angle of the connecting plate according to the usage environment, and install and fix the two composite air ducts through the connecting flange 2. In addition, the connection can be further sealed and fixed as needed.
[0032] Therefore, the industrial integrated composite air duct of this utility model, by setting up a heat insulation layer and a fire-resistant heat insulation layer, can improve the wind resistance, heat insulation and fire resistance of the composite air duct. At the same time, the connecting flange can realize the connection of composite air ducts at different angles, which has wide applicability and can adapt to complex use environments.
[0033] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and not to limit it. Although the utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can still be made to the technical solution of this utility model, and these modifications or equivalent substitutions cannot cause the modified technical solution to deviate from the spirit and scope of the technical solution of this utility model.
Claims
1. An integrated industrial composite air duct, characterized in that: The duct includes a duct base, the surface of which is covered with a fire-resistant insulation board. Both ends of the duct base are provided with connecting flanges for connection. The surface of the connecting flanges is provided with strip-shaped fixing holes and circular fixing holes for fixing. The sides of the fire-resistant insulation board are provided with positioning blocks and positioning grooves for positioning, and the positioning blocks and positioning grooves are compatible with each other.
2. The industrial integrated composite air duct according to claim 1, characterized in that: The duct substrate includes several fire-resistant insulation boards, and adjacent fire-resistant insulation boards are sealed and connected by sealing strips.
3. The industrial integrated composite air duct according to claim 1, characterized in that: The connecting flange includes several connecting plates, which are configured as L-shaped or V-shaped. Circular fixing holes are provided on the surface of the fixing part, and strip-shaped fixing holes are provided on the surface of the connecting part.
4. The industrial integrated composite air duct according to claim 3, characterized in that: The connecting plate includes a fixing part and a connecting part, which are rotatably arranged, and the included angle between the fixing part and the connecting part is 0-180°.
5. The industrial integrated composite air duct according to claim 1, characterized in that: The positioning block is set on the side of the fire-resistant insulation board, and the side of the positioning block is provided with a slot.
6. The industrial integrated composite air duct according to claim 1, characterized in that: The positioning groove is set on the side of the fire-resistant insulation board. A cavity is set inside the positioning groove, and a retaining ball is set inside the cavity. A spring is set inside the retaining ball and inside the cavity.
7. The industrial integrated composite air duct according to claim 6, characterized in that: The opening of the cavity is provided with a baffle to prevent the ball from falling out.
8. The industrial integrated composite air duct according to claim 1, characterized in that: The fire-resistant insulation board is configured from the inside out as follows: protective layer one, fire-resistant insulation layer, heat insulation layer, and protective layer two.