Rubber and plastic flame-retardant thermal-insulation ventilating duct

Abstract

The utility model relates to the technical field of ventilating ducts, in particular to a rubber and plastic flame-retardant heat-preservation ventilating duct which comprises an air duct body, a rubber and plastic heat-preservation layer is arranged on one side of the air duct body and fixedly connected with a heat-insulation layer, a heat-insulation layer is arranged on one side of the rubber and plastic heat-preservation layer, and the rubber and plastic heat-preservation layer is fixedly connected with the heat-insulation layer. A flame-retardant layer is arranged on one side of the heat insulation layer; when open fire is generated near the air pipe body, the flame-retardant layer on the outermost layer of the air pipe body can be ignited to be damaged in a long-time combustion environment, at the moment, the fire extinguishing agent in the fire extinguishing cavity between the flame-retardant layer and the heat insulation layer can be discharged out of flames sprayed to the outer side of the damage part along the damage part, and then the flames are extinguished; according to the air pipe, flame spreading can be effectively blocked, the flame retarding effect on the flame is improved, the air pipe is simple, effective and convenient to use, the reinforcing device can provide certain supporting and lifting force, then the rubber and plastic heat preservation layer, the heat insulation layer and the flame retarding layer are connected and fixed to the outer side of the air pipe body, and the use stability is improved.

Description

Technical Field

[0001] This utility model relates to the field of ventilation duct technology, specifically a rubber and plastic flame-retardant and heat-insulating ventilation duct. Background Technology

[0002] Flame-retardant and heat-insulating rubber and plastic ventilation ducts typically consist of, from the inside out, the duct body, a rubber and plastic insulation layer, a heat insulation layer, and a flame-retardant layer. The duct body serves as the channel for air transport. The rubber and plastic insulation layer wraps around the outside of the duct body, providing thermal insulation. The heat insulation layer further enhances the insulation effect, while the flame-retardant layer provides fire protection.

[0003] Most rubber and plastic materials have a flame retardant rating of B1 (flame-retardant). Although they can delay the spread of fire, they may still be ignited in high flame intensity and long-term combustion environments (such as special places like chemical workshops and large warehouses), and their flame retardant effect is poor.

[0004] In view of this, we propose a rubber and plastic flame-retardant heat-insulating ventilation duct. Utility Model Content

[0005] The purpose of this utility model is to provide a rubber and plastic flame-retardant heat-insulating ventilation duct to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A flame-retardant and heat-insulating ventilation duct made of rubber and plastic includes a duct body, a rubber and plastic insulation layer on one side of the duct body and a heat insulation layer fixedly connected to it, a heat insulation layer on one side of the rubber and plastic insulation layer and a heat insulation layer fixedly connected to it, a flame-retardant layer on one side of the heat insulation layer, a fire extinguishing chamber between the heat insulation layer and the flame-retardant layer, a fire extinguishing agent inside the fire extinguishing chamber, and a reinforcement device on the outside of the flame-retardant layer.

[0008] When an open flame is generated near the duct body, the outermost flame-retardant layer of the duct body will be ignited and damaged under prolonged combustion. At this time, the extinguishing agent in the fire extinguishing chamber between the flame-retardant layer and the heat insulation layer will be discharged along the damaged area and sprayed towards the flame outside the damaged area, thereby extinguishing the flame. This can effectively prevent the spread of the flame and improve the flame-retardant effect. It is simple, effective and easy to use. The reinforcement device can provide a certain supporting force, thereby connecting and fixing the rubber and plastic insulation layer, heat insulation layer and flame-retardant layer to the outside of the duct body, improving the stability of use.

[0009] Preferably, the reinforcement device includes multiple support plates disposed on the outside of the flame-retardant layer, and the side wall of the support plate abuts against the side wall of the flame-retardant layer. The side wall of the support plate is provided with support bolts, and one end of the support bolts penetrates through the flame-retardant layer, the heat insulation layer and the rubber and plastic insulation layer and is fixedly connected to the side wall of the duct body.

[0010] By using a tray and support bolts together, the rubber and plastic insulation layer, heat insulation layer, and flame retardant layer are all fixedly connected to the side wall of the tray. The support bolts fixedly connected to the side wall of the tray form a support position, and the side wall of the support bolt abuts against the side wall of the flame retardant layer, thereby firmly fixing the rubber and plastic insulation layer, heat insulation layer, and flame retardant layer to the outside of the tray, improving stability during use and making it convenient to use.

[0011] Preferably, the rubber-plastic insulation layer has an internal filling cavity, and the filling cavity is filled with ceramic fibers;

[0012] By adding ceramic fibers to the internal filling cavity of the rubber and plastic insulation layer, the high temperature resistance of the rubber and plastic insulation layer is improved, making it easier to use.

[0013] Preferably, a high-strength fiber mesh is provided inside the rubber and plastic insulation layer on both sides of the ceramic fiber;

[0014] By setting a high-strength fiber mesh inside the rubber and plastic insulation layer, the impact and tear resistance of the rubber and plastic insulation layer is improved, without significantly increasing the weight.

[0015] Preferably, the side wall of the duct body is provided with multiple reinforcing grooves, and the inside of the reinforcing grooves is provided with reinforcing ribs;

[0016] By installing reinforcing ribs, the overall rigidity of the duct body is enhanced through structural mechanics, reducing the risk of localized damage.

[0017] Preferably, the sidewall of the pallet has an arc-shaped angle;

[0018] By setting rounded corners, the edges of the pallet are prevented from being too sharp when handling the duct body, thus avoiding scratches to operators and improving operational safety.

[0019] Preferably, the outer side of the flame-retardant layer is coated with a corrosion-resistant coating;

[0020] By spraying a corrosion-resistant coating, a physical barrier is formed to resist the erosion of organic solvents and acids and alkalis, thus extending the service life.

[0021] Compared with the prior art, the beneficial effects of this utility model are:

[0022] 1. This type of rubber and plastic flame-retardant insulated ventilation duct, when an open flame is generated near the duct body, will cause the outermost flame-retardant layer of the duct body to be ignited and damaged under prolonged combustion. At this time, the extinguishing agent in the fire extinguishing chamber between the flame-retardant layer and the insulation layer will be discharged along the damaged area and sprayed towards the flame outside the damaged area, thereby extinguishing the flame. It can effectively prevent the spread of flames and improve the flame-retardant effect. It is simple, effective and easy to use. The reinforcement device can provide a certain supporting force, thereby connecting and fixing the rubber and plastic insulation layer, insulation layer and flame-retardant layer to the outside of the duct body, improving the stability of use. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0024] Figure 2 This is one of the side view structural schematic diagrams of this utility model;

[0025] Figure 3 This is the second side view schematic diagram of the structure of this utility model;

[0026] Figure 4 for Figure 3 Enlarged structural diagram of section A in the middle.

[0027] In the diagram: 1. Duct body; 2. Rubber and plastic insulation layer; 3. Heat insulation layer; 4. Flame retardant layer; 5. Fire extinguishing chamber; 6. Fire extinguishing agent; 7. Support plate; 8. Support bolt; 9. Filling chamber; 10. Ceramic fiber; 11. High-strength fiber mesh; 12. Reinforcing groove; 13. Reinforcing rib; 14. Arc corner; 15. Corrosion-resistant coating. Detailed Implementation

[0028] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0029] In the description of this application, it should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. For ease of description, the dimensions of the various parts shown in the drawings are not drawn to actual scale. Techniques, methods, and devices known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and devices should be considered part of the specification. In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters in the following drawings denote similar items; therefore, once an item is defined in one drawing, it need not be further discussed in subsequent drawings.

[0030] Please see Figures 1-4 As shown, this utility model provides a technical solution:

[0031] A flame-retardant and heat-insulating ventilation duct made of rubber and plastic includes a duct body 1, a rubber and plastic insulation layer 2 on one side of the duct body 1, and the rubber and plastic insulation layer 2 is fixedly connected to a heat insulation layer 3. A heat insulation layer 3 is also fixedly connected to the rubber and plastic insulation layer 2 on one side of the heat insulation layer 3. A flame-retardant layer 4 is provided on one side of the heat insulation layer 3, and a fire extinguishing chamber 5 is provided between the heat insulation layer 3 and the flame-retardant layer 4. The fire extinguishing chamber 5 contains a fire extinguishing agent 6, and a reinforcing device is provided on the outside of the flame-retardant layer 4. When an open flame is generated near the duct body 1, the flame extinguishing agent 6 will extinguish the flame after prolonged combustion. Under certain environmental conditions, the outermost flame-retardant layer 4 of the duct body 1 may be ignited and damaged. At this time, the extinguishing agent 6 in the fire extinguishing chamber 5 between the flame-retardant layer 4 and the heat insulation layer 3 will be discharged along the damaged area and sprayed towards the flame outside the damaged area, thereby extinguishing the flame. This can effectively block the spread of the flame and improve the flame-retardant effect. It is simple, effective and easy to use. The reinforcement device can provide a certain supporting force, thereby connecting and fixing the rubber and plastic insulation layer 2, the heat insulation layer 3 and the flame-retardant layer 4 to the outside of the duct body 1, improving the stability of use.

[0032] In this embodiment, the reinforcement device includes multiple support plates 7 disposed on the outside of the flame-retardant layer 4, with the sidewall of the support plate 7 abutting against the sidewall of the flame-retardant layer 4. The sidewall of the support plate 7 is provided with a support bolt 8, and one end of the support bolt 8 penetrates through the flame-retardant layer 4, the heat insulation layer 3, and the rubber and plastic insulation layer 2 and is fixedly connected to the sidewall of the duct body 1. By using the support plates 7 and the support bolt 8 together, the rubber and plastic insulation layer 2, the heat insulation layer 3, and the flame-retardant layer 4 are all fixedly connected to the sidewall of the support plate 7. The support bolt 8 fixedly connected to the sidewall of the support plate 7 forms a support position, and the sidewall of the support bolt 8 abuts against the sidewall of the flame-retardant layer 4, thereby tightly fixing the rubber and plastic insulation layer 2, the heat insulation layer 3, and the flame-retardant layer 4 to the outside of the support plate 7, improving stability during use and facilitating use.

[0033] In this embodiment, the rubber and plastic insulation layer 2 has a filling cavity 9 inside, and ceramic fibers 10 are provided inside the filling cavity 9; by adding ceramic fibers 10 to the filling cavity 9 inside the rubber and plastic insulation layer 2, the high temperature resistance of the rubber and plastic insulation layer 2 is improved, making it convenient to use.

[0034] In this embodiment, a high-strength fiber mesh 11 is provided inside the rubber and plastic insulation layer 2 on both sides of the ceramic fiber 10; by providing a high-strength fiber mesh 11 inside the rubber and plastic insulation layer 2, the impact resistance and tear resistance of the rubber and plastic insulation layer 2 are improved, while the weight is not significantly increased.

[0035] In this embodiment, the side wall of the duct body 1 is provided with a plurality of reinforcing grooves 12, and the interior of the reinforcing grooves 12 is provided with reinforcing ribs 13; by setting the reinforcing ribs 13, the reinforcing ribs 13 enhance the overall rigidity of the duct body 1 through structural mechanics, reducing the risk of local damage.

[0036] In this embodiment, the side wall of the pallet 7 is provided with an arc-shaped corner 14; by setting the arc-shaped corner 14, the edges and corners of the pallet 7 are not too sharp when the air duct body 1 is being transported, so as to avoid scratching the operator and improve the safety of operation.

[0037] In this embodiment, a corrosion-resistant coating 15 is sprayed on the outer side of the flame-retardant layer 4; by spraying the corrosion-resistant coating 15, a physical barrier is formed to resist the corrosion of organic solvents and acids and alkalis, thus extending the service life.

[0038] In this embodiment, when an open flame is generated near the duct body 1, the outermost flame-retardant layer 4 of the duct body 1 will be ignited and damaged under prolonged combustion conditions. At this time, the extinguishing agent 6 in the fire extinguishing chamber 5 between the flame-retardant layer 4 and the insulation layer 3 will be discharged along the damaged area and sprayed towards the flame outside the damaged area, thereby extinguishing the flame. This can effectively prevent the spread of the flame and improve the flame-retardant effect. It is simple, effective and easy to use. The reinforcement device can provide a certain supporting force, thereby connecting and fixing the rubber-plastic insulation layer 2, the insulation layer 3 and the flame-retardant layer 4 to the outside of the duct body 1, improving the stability of use.

[0039] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A rubber and plastic flame-retardant heat-insulating ventilation duct, comprising a duct body (1), characterized in that: The duct body (1) has a rubber and plastic insulation layer (2) on one side, and the rubber and plastic insulation layer (2) is fixedly connected to the heat insulation layer (3). The rubber and plastic insulation layer (2) has a heat insulation layer (3) on one side, and the rubber and plastic insulation layer (2) is fixedly connected to the heat insulation layer (3). The heat insulation layer (3) has a flame retardant layer (4) on one side, and a fire extinguishing chamber (5) is provided between the heat insulation layer (3) and the flame retardant layer (4). The fire extinguishing chamber (5) is provided with a fire extinguishing agent (6) inside, and a reinforcement device is provided on the outside of the flame retardant layer (4).

2. The rubber-plastic flame-retardant heat-insulating ventilation duct according to claim 1, characterized in that: The reinforcement device includes multiple support plates (7) set on the outside of the flame retardant layer (4), and the side wall of the support plate (7) abuts against the side wall of the flame retardant layer (4). The side wall of the support plate (7) is provided with support bolts (8), and one end of the support bolts (8) penetrates the flame retardant layer (4), the heat insulation layer (3) and the rubber and plastic insulation layer (2) and is fixedly connected to the side wall of the air duct body (1).

3. The rubber-plastic flame-retardant heat-insulating ventilation duct according to claim 1, characterized in that: The rubber and plastic insulation layer (2) has a filling cavity (9) inside, and the filling cavity (9) is filled with ceramic fibers (10).

4. The rubber-plastic flame-retardant heat-insulating ventilation duct according to claim 3, characterized in that: The rubber and plastic insulation layer (2) on both sides of the ceramic fiber (10) is provided with a high-strength fiber mesh (11).

5. The rubber-plastic flame-retardant heat-insulating ventilation duct according to claim 1, characterized in that: The side wall of the duct body (1) is provided with multiple reinforcing grooves (12), and the interior of the reinforcing grooves (12) is provided with reinforcing ribs (13).

6. The rubber-plastic flame-retardant heat-insulating ventilation duct according to claim 2, characterized in that: The side wall of the tray (7) is provided with an arc-shaped corner (14).

7. The rubber-plastic flame-retardant heat-insulating ventilation duct according to claim 1, characterized in that: The flame-retardant layer (4) is coated with a corrosion-resistant coating (15) on its outer side.

Images