Insulating, flame-retardant and fireproof flexible connection ventilation pipe

Abstract

The utility model relates to the technical field of flexible connection ventilation pipes, and discloses an insulating flame-retardant fireproof flexible connection ventilation pipe, which comprises a pipe body, a ventilation port, a flange port and a flame-retardant aramid fiber thread, joints at the two ends of the pipe body are spliced in a staggered manner and are sewn by flame-retardant aramid fibers, and glass fiber silica gel composite materials with the thickness of 0.1 mm are additionally arranged at the sewn joints of the pipe body and are sewn. According to the utility model, the whole ventilation pipe adopts a multi-layer structure design, the pipe body air duct is designed into a two-layer structure with the thickness of 1.5 mm, the joints of the pipe body are spliced in a staggered manner and are sewn by flame-retardant aramid fibers, and glass fiber silica gel with the thickness of 0.1 mm is additionally arranged at the sewn joints and is sewn. The flange port and the ventilation port are both made of two layers of gray glass fiber silica gel composite materials with the thickness of 0.5 mm in a wrapping and seaming mode, so that the flange port and the ventilation port have the advantages of being free of air leakage, firm and durable, and the flange port and the ventilation port are mainly made of flame-retardant silica gel, glass fiber cloth and aramid fiber flame-retardant lines.

Description

Technical Field

[0001] The utility model relates to the technical field of flexible connection ventilation pipes, in particular to an insulated, flame-retardant and fireproof flexible connection ventilation pipe. Background Art

[0002] Flexible joint ventilation ducts are used in rail transportation, such as elevator shafts, subways, high-speed railways and other working conditions with both vibration and pressure. Flexible joint ventilation ducts play an important role in building and industrial ventilation systems. Their flexibility and functionality make them widely used in various ventilation systems.

[0003] Common daily flexible ventilation ducts are mostly made of nylon cloth coated with PVC adhesive layer, which has certain cost advantages. They will age after 2 to 3 years of use, but are more prone to aging at high temperatures above 80 degrees. When a fire occurs, PVC and nylon will fail in 3 to 5 minutes at high temperatures, and will produce toxic smoke, endangering the environment and personal safety.

[0004] Therefore, those skilled in the art provide an insulated, flame-retardant, and fireproof flexible connection ventilation pipe to solve the problems raised in the above background technology. Utility Model Content

[0005] The purpose of this utility model is to overcome the shortcomings of the prior art. The utility model proposes an insulated, flame-retardant, fire-resistant flexible connection ventilation duct. The entire ventilation duct adopts a multi-layer structure design. The pipe body air duct is designed as a two-layer structure with a thickness of 1.5mm. The pipe body joints are staggered and sewn with flame-retardant aramid thread. Then, 0.1mm thick glass fiber silicone is added to the sewn joints and sewn. The flange port and ventilation port are both sandwiched and sewn with two layers of 0.5mm thick gray glass fiber silicone composite material, making it airtight and durable. In addition, the three main materials of this design, flame-retardant silicone, glass fiber cloth, and aramid flame-retardant thread, all have flame-retardant, high temperature resistance, and aging resistance.

[0006] To achieve the above objectives, the present invention provides the following technical solutions:

[0007] An insulated, flame-retardant, fireproof, flexible-connected ventilation pipe, comprising a pipe body, a ventilation port, a flange port, and a flame-retardant aramid thread. The pipe body is composed of two layers of 1.5 mm thick glass fiber silicone composite material, and the joints at both ends of the pipe body are staggered and sewn with flame-retardant aramid thread. The sewn joints of the pipe body are covered with a 0.1 mm thick glass fiber silicone composite material and then sewn. The flange port and ventilation port are each covered with two layers of 1.5 mm thick glass fiber silicone composite material and two layers of 0.5 mm thick gray glass fiber silicone composite material, which are then sewn together.

[0008] Through the above technical solution, the entire ventilation duct adopts a multi-layer structure, with the pipe body air duct designed as a two-layer structure with a thickness of 1.5mm. The pipe body joints are staggered and sewn with flame-retardant aramid thread. 0.1mm thick glass fiber silicone is added to the sewn joints and sewn. The flange end and ventilation port are both sandwiched and sewn with two layers of 0.5mm thick gray glass fiber silicone composite material, making it airtight and durable. The three main materials of this design—flame-retardant silicone, glass fiber cloth, and aramid flame-retardant thread—are all flame-retardant, heat-resistant, and aging-resistant, ensuring that it will not oxidize or crack for many years.

[0009] Furthermore, the first layer of the 1.5mm thick glass fiber silicone composite material with a flame retardant insulation is a silicone layer, which is made of 100F6-70A flame retardant silicone raw material and calendered to a thickness of 0.55mm. The second layer is made of 0.4mm thick alkali-free glass fiber, and the third layer is made of 100F6-70A flame retardant silicone raw material and calendered to a thickness of 0.55mm, with a total thickness of 1.5mm.

[0010] Through the above technical solution, the first layer of the insulating flame retardant and fireproof 1.5mm thick glass fiber silicone composite material is a silicone layer, which uses 100F6-70A Lai flame retardant silicone raw material to be calendered to a thickness of 0.55mm. The second layer uses 0.4mm thick alkali-free glass fiber, and the third layer uses 100F6-70A Lai flame retardant silicone raw material to be calendered to a thickness of 0.55mm. The total thickness is 1.5mm, which can increase its fastness and avoid the lack of overlapping parts at the splicing, which affects the product assembly due to thickness.

[0011] Furthermore, the first layer of the insulating flame retardant and fireproof 0.1mm thick glass fiber silicone composite material is a silicone layer, which is made of 100F6-70A Lai flame retardant silicone raw material and calendered to a thickness of 0.05mm. The second layer is made of 0.05mm thick alkali-free glass fiber, which is calendered, with a total thickness of 0.1mm.

[0012] Through the above technical solution, the first layer of the insulating flame retardant and fireproof 0.1mm thick glass fiber silicone composite material is a silicone layer, which is made of 100F6-70A Lai flame retardant silicone raw material and calendered to a thickness of 0.05mm. The second layer is made of 0.05mm thick alkali-free glass fiber calendered, with a total thickness of 0.1mm. The outer layer at the splicing point is sewn and bound with a 0.1mm thick glass fiber silicone composite material, making the product more beautiful and more solid.

[0013] Furthermore, the insulating flame retardant and fireproof 0.5mm thick gray glass fiber silicone composite material has a middle layer of 0.3mm thick alkali-free glass fiber, and both sides are made of 100F6-60A Lai flame retardant silicone raw material, which is calendered, with a total thickness of 0.5mm;

[0014] Through the above technical solution, the middle layer of the insulating flame-retardant and fire-proof 0.5mm thick gray glass fiber silicone composite material is made of 0.3mm thick alkali-free glass fiber, and the 100F6-60A flame-retardant silicone raw material is selected on both sides for calendering. The design of the gray glass fiber silicone composite material can improve the sealing and firmness of the ventilation duct.

[0015] Furthermore, the four corners of the ventilation port are all sewn with clamp fixing belts through flame-retardant aramid thread;

[0016] Through the above technical solution, clamp fixing strips are sewn at the four corners of the ventilation port through flame-retardant aramid thread, thereby facilitating the restriction of the clamp position during installation and use of the ventilation pipe.

[0017] Furthermore, the flange port is evenly provided with a plurality of flange holes;

[0018] Through the above technical solution, multiple flange holes are evenly opened on the flange port to facilitate the installation of the entire ventilation pipe during use.

[0019] The utility model has the following beneficial effects:

[0020] 1. This utility model proposes an insulated, flame-retardant, fireproof flexible-connected ventilation duct. The duct adopts a multi-layer design, with the duct body air duct designed as a two-layer structure with a thickness of 1.5mm. The duct body joints are spliced ​​together using staggered stitching and sewn with flame-retardant aramid thread. 0.1mm thick glass fiber silicone is then added to the sewn joints and sewn together. The flange and ventilation ports are both sandwiched and sewn with two layers of 0.5mm thick gray glass fiber silicone composite material, making it airtight and durable. The three main materials of this design—flame-retardant silicone, glass fiber cloth, and aramid flame-retardant thread—are all flame-retardant, heat-resistant, and aging-resistant, ensuring long-term oxidation and cracking resistance. The duct has a service life of over 10 years and can operate normally in operating environments ranging from -40°C to 150°C. Its flame retardancy meets UL94V0 requirements, and its smoke and toxic combustion performance tests meet the requirements of EN45545-2:2013 for R7 materials and fire risk level HL2. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is an axonometric drawing of an insulated, flame-retardant, fire-resistant flexible-connected ventilation pipe proposed in the present invention;

[0022] Figure 2 This is a cross-sectional view of an insulated, flame-retardant, fireproof flexible connection ventilation pipe proposed by the present invention;

[0023] Figure 3 This is a front view of an insulated, flame-retardant, fireproof flexible connection ventilation pipe proposed by the utility model;

[0024] Figure 4 for Figure 2 Enlarged view of point A in the middle.

[0025] Legend:

[0026] 1. Pipe body; 2. Ventilation port; 3. Flange port; 4. Clamp fixing strap; 5. Flange hole; 6. Flame-retardant aramid thread. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0028] Reference Figures 1 to 4 The utility model provides an embodiment: an insulated flame-retardant and fireproof flexible connection ventilation pipe, comprising a pipe body 1, a ventilation port 2, a flange port 3 and a flame-retardant aramid thread 6, the pipe body 1 is composed of two layers of 1.5mm thick glass fiber silicone composite material, and the joints at both ends of the pipe body 1 are staggered and sewn with flame-retardant aramid thread 6, and 0.1mm thick glass fiber silicone composite material is added to the sewn joints of the pipe body 1 and sewn, the flange port 3 and the ventilation port 2 are both covered with two layers of 1.5mm thick glass fiber silicone composite material and two layers of 0.5mm thick gray glass fiber silicone composite material in sequence and then sewn by sewing technology, by adopting a multi-layer structure design for the entire ventilation pipe, the pipe body air duct is designed into a two-layer structure with a thickness of 1.5mm, the pipe body joints are staggered and sewn with flame-retardant aramid thread, and then 0.1mm thick glass fiber silicone is added to the sewn joints and sewn. The flange port and ventilation port are wrapped and sewn with two layers of 0.5mm thick gray glass fiber silicone composite material, making it airtight and durable. The three main materials of this design, flame retardant silicone, glass fiber cloth, and aramid flame retardant thread are all flame retardant, high temperature resistant, and aging resistant, so that it can be prevented from oxidation and cracking all year round.

[0029] The first layer of the insulating flame retardant and fireproof 1.5mm thick glass fiber silicone composite material is a silicone layer, which uses 100F6-70A Lai flame retardant silicone raw material to be calendered to a thickness of 0.55mm, the second layer uses 0.4mm thick alkali-free glass fiber, and the third layer uses 100F6-70A Lai flame retardant silicone raw material to be calendered to a thickness of 0.55mm, with a total thickness of 1.5mm. The first layer of the insulating flame retardant and fireproof 1.5mm thick glass fiber silicone composite material is a silicone layer, which uses 100F6-70A Lai flame retardant silicone raw material to be calendered to a thickness of 0.55mm, the second layer uses 0.4mm thick alkali-free glass fiber, and the third layer uses 100F6-70A Lai flame retardant silicone raw material to be calendered to a thickness of 0.55mm, with a total thickness of 1.5mm. The three layers are made of 100F6-70A flame retardant silicone material and calendered to a thickness of 0.55mm, with a total thickness of 1.5mm, which can increase its fastness and avoid the thickness affecting the product assembly due to the lack of overlapping parts at the joints. The first layer of the insulating flame retardant and fireproof 0.1mm thick glass fiber silicone composite material is a silicone layer, which is made of 100F6-70A flame retardant silicone material and calendered to a thickness of 0.05mm. The second layer is made of 0.05mm thick alkali-free glass fiber, which is calendered, with a total thickness of 0.1mm. The first layer of the insulating flame retardant and fireproof 0.1mm thick glass fiber silicone composite material is a silicone layer. The 100F6-70A flame retardant silicone material is calendered to a thickness of 0.05mm. The second layer is calendered with 0.05mm thick alkali-free glass fiber, with a total thickness of 0.1mm. The outer layer of the splicing is sewn and bound with a 0.1mm thick glass fiber silicone composite material to make the product more beautiful and stronger. The middle layer of the insulating flame retardant and fireproof 0.5mm thick gray glass fiber silicone composite material is calendered with 0.3mm thick alkali-free glass fiber. The 100F6-60A flame retardant silicone material is calendered on both sides, with a total thickness of 0.5mm. The insulating flame retardant and fireproof 0.5mm thick gray glass fiber silicone The middle layer of the adhesive composite material is made of 0.3mm thick alkali-free glass fiber, and the 100F6-60A flame retardant silicone raw material is selected on both sides and is calendered. The design of the gray glass fiber silicone composite material can improve the sealing and firmness of the ventilation pipe. The four corners of the ventilation port 2 are sewn with a clamp fixing belt 4 through a flame retardant aramid line 6. The four corners of the ventilation port are sewn with a clamp fixing belt through a flame retardant aramid line to facilitate the restriction of the clamp position during installation and use of the ventilation pipe. The flange port 3 is evenly provided with multiple flange holes 5. The flange port is evenly provided with multiple flange holes for easy installation of the entire ventilation pipe when in use.

[0030] Working principle: The whole ventilation duct adopts a multi-layer structure design, and the pipe body air duct is designed as a two-layer structure with a thickness of 1.5mm. The pipe body joints are staggered and sewn with flame-retardant aramid thread, and then 0.1mm thick glass fiber silicone is added to the sewn joints and sewn. The flange port and the ventilation port are sandwiched and sewn with two layers of 0.5mm thick gray glass fiber silicone composite material to make it airtight and durable. The three main materials of this design, flame-retardant silicone, glass fiber cloth, and aramid flame-retardant thread are all flame-retardant, high-temperature resistant, and aging-resistant, so that it can be oxidized and cracked all year round, and the service life is more than 10 years. It can operate normally in the operating environment of -40 to 150℃. The glass fiber silicone cloth is flame-retardant and fire-resistant, and can reach UL94-V0 level. The main component is silicon element. Even if smoke is produced after combustion, the toxic performance meets the R7 material and fire risk requirements of EN45545-2:2013. Grade HL2 requirements, good aging performance, can achieve ten years without oxidation or cracking under normal conditions, the flange adopts a multi-layer structure to increase the tensile strength, the flange adopts a clamping process, the sealing performance is good, the rail locomotive will not leak from the flange edge during normal ventilation, the ventilation duct body adopts 2 layers of 1.5mm thick glass fiber silicone composite material, even if there are hard objects or sand and gravel in the air duct, it will not be easily punctured, the joints of the ventilation duct body are staggered splicing and sewn with flame-retardant aramid thread, and then 0.1mm thick glass fiber silicone is added to the sewn joints and sewn to increase its tensile strength and prevent overlapping at the joints to affect the unevenness of the flange, so as to better achieve sealing performance.

[0031] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent replacements for some of the technical features therein. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. An insulated flame-retardant and fireproof flexible connection ventilation pipe, comprising a pipe body (1), a ventilation port (2), a flange port (3) and a flame-retardant aramid wire (6), characterized in that: The pipe body (1) is composed of two layers of 1.5 mm thick glass fiber silicone composite material, and the joints at both ends of the pipe body (1) are staggered and sewn with flame-retardant aramid thread (6). The sewn joints of the pipe body (1) are covered with 0.1 mm thick glass fiber silicone composite material and sewn together. The flange port (3) and the ventilation port (2) are both covered with two layers of 1.5 mm thick glass fiber silicone composite material and two layers of 0.5 mm thick gray glass fiber silicone composite material in sequence and then sewn together by sewing.

2. The insulated flame-retardant and fireproof flexible connection ventilation pipe according to claim 1, characterized in that: The first layer of the insulating flame retardant and fireproof 1.5mm thick glass fiber silicone composite material is a silicone layer, which is made of 100F6-70A Lai flame retardant silicone raw material and calendered to a thickness of 0.55mm. The second layer is made of 0.4mm thick alkali-free glass fiber, and the third layer is made of 100F6-70A Lai flame retardant silicone raw material and calendered to a thickness of 0.55mm, with a total thickness of 1.5mm.

3. The insulated flame-retardant and fireproof flexible connection ventilation pipe according to claim 1, characterized in that: The first layer of the insulating flame retardant and fireproof 0.1mm thick glass fiber silicone composite material is a silicone layer, which is made of 100F6-70A Lai flame retardant silicone raw material and calendered to a thickness of 0.05mm. The second layer is made of 0.05mm thick alkali-free glass fiber, with a total thickness of 0.1mm.

4. The insulated flame-retardant and fireproof flexible connection ventilation pipe according to claim 1, characterized in that: The insulating flame retardant and fireproof 0.5mm thick gray glass fiber silicone composite material has a middle layer of 0.3mm thick alkali-free glass fiber and two sides are made of 100F6-60A Lai flame retardant silicone raw material, with a total thickness of 0.5mm.

5. The insulated flame-retardant and fireproof flexible connection ventilation pipe according to claim 1, characterized in that: The four corners of the ventilation port (2) are all sewn with clamp fixing belts (4) through flame-retardant aramid yarn (6).

6. The insulated flame-retardant and fireproof flexible connection ventilation pipe according to claim 1, characterized in that: The flange port (3) is evenly provided with a plurality of flange holes (5).

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