CN214620015U

CN214620015U - Composite fireproof air pipe

Info

Publication number: CN214620015U
Application number: CN202120408874.6U
Authority: CN
Inventors: 钟志军
Original assignee: Guangzhou Baoyuan Decoration Material Co ltd
Current assignee: Guangzhou Baoyuan Decoration Material Co ltd
Priority date: 2021-02-24
Filing date: 2021-02-24
Publication date: 2021-11-05
Anticipated expiration: 2031-02-24

Abstract

The utility model discloses a compound fire prevention tuber pipe, the pipe wall of tuber pipe is from interior to including sheet metal layer, insulating layer and flame retardant coating outward in proper order. The inner wall of the fireproof air duct of the utility model is smooth, thereby effectively reducing the possibility that the temperature of the flue gas will rise due to friction in the duct, and further increasing the fireproof aging; and meanwhile, the scale on the inner wall is reduced, the cleaning after long-term operation is convenient, and the sanitary standard requirement of a ventilation system is met.

Description

Composite fireproof air pipe

Technical Field

The utility model relates to a pipeline for the building specifically relates to a fire prevention tuber pipe of long and easily installation maintenance of fire-resistant ageing, its engineering fields such as industry and civil construction, underground construction, basement, subway are mainly applied to.

Background

At home, in the actual application process of the existing air duct system, an iron sheet air duct, a phenolic aldehyde composite air duct and a glass fiber reinforced plastic air duct are commonly used, but the fire-resistant time of the air duct system is mostly less than 1 hour, and the installation period is long; in addition, the sanitation of the air pipe is not easy to clean after reaching a certain service life, and the sanitation is difficult to reach the standard, so that the later maintenance is very difficult.

And the air port accessories of the existing fireproof air pipes have problems, and when the air port accessories need to be maintained, the air port accessories need to be integrally cut and then maintained, so that the maintenance is very inconvenient.

SUMMERY OF THE UTILITY MODEL

The utility model provides a composite fireproof air pipe, which solves the technical problem of short fireproof aging in an air pipe system; the special structure of the device makes the use and later maintenance of the device easy.

For solving the technical problem, the utility model discloses a following technical scheme:

compound fire prevention tuber pipe, the pipe wall of tuber pipe is from interior to including sheet metal layer, insulating layer and flame retardant coating outward in proper order.

Further, sheet metal layer is the steel deck, iron sheet layer or aluminium sheet layer.

Further, sheet metal layer thickness is 0.1 ~ 1.5 mm.

Further, the insulating layer is for filling the cavity layer that has inorganic glue or fire prevention to glue.

Further, the flame retardant coating is fiber reinforcement silicate PLASTIC LAMINATED, cement reinforcing silicate PLASTIC LAMINATED, or cement fibre PLASTIC LAMINATED.

Further, the fire resistive layer thickness is 6 ~ 20 mm.

Further, fire prevention tuber pipe is formed by main tuber pipe, branch tuber pipe and wind gap connection, main tuber pipe and branch tuber pipe are even as whole, branch tuber pipe has a breach, the wind gap is installed on the breach of branch tuber pipe.

Further, install the air diffuser in the wind gap.

Furthermore, the side of the fireproof air pipe is in a shape like a Chinese character 'tu'.

Compared with the prior art, the beneficial effects of the utility model are that:

1) compared with the traditional air pipe, the fireproof air pipe of the utility model utilizes the combination of metal plate layers and fireproof plate layers with different materials and different thicknesses, and the fireproof time efficiency meeting the requirement of building fireproof standards is 1 h-3 h;

2) the inner wall of the fireproof air duct of the utility model is smooth, thereby effectively reducing the possibility that the temperature of the flue gas will rise due to friction in the duct, and the fireproof time is long; because the inner wall of the fireproof air duct is smooth, the fireproof air duct is easy to clean and reach the standard even if the fireproof air duct is used for too long.

3) When the wind gap accessory of fire prevention tuber pipe needs the maintenance, do not need whole cutting fire prevention tuber pipe, only need tear the mounting of fixed wind gap accessory open and can maintain to prolonged fire prevention tuber pipe service life, it is also very convenient to maintain.

4) The metal plate layer is used by the fireproof air pipe, so that the overall rigidity and the strength of the fireproof air pipe are improved;

5) and the fire prevention tuber pipe reduces the possibility that the dust produced, satisfies the environmental protection requirement.

Drawings

The technology of the present invention will be further described in detail with reference to the accompanying drawings and detailed description:

fig. 1 is a perspective view of the fire protection duct according to embodiment 1 of the present invention.

Fig. 2 is a schematic view of a pipe wall structure of the fireproof air pipe according to embodiment 1 of the present invention.

Fig. 3 is a cut-away perspective view of the fire protection air duct (with air inlet) according to embodiment 2 of the present invention.

Fig. 4 is an elevation view of the fire protection duct according to embodiment 2 of the present invention.

1-fireproof air duct; 11-main air pipe; 12-branch air pipes; 121-notch; 13-tuyere; 14-a fixing member; 2-a metal plate layer; 3-a heat insulation layer; 4-fireproof layer.

Detailed Description

The preferred embodiments of the present invention will be described in conjunction with the accompanying drawings, and it will be understood that they are presented herein only to illustrate and explain the present invention, and not to limit the present invention.

Example 1

As shown in fig. 1-2, a wall of the composite fireproof air duct 1 according to embodiment 1 sequentially includes a metal plate layer 2, a heat insulation layer 3, and a fireproof layer 4 from inside to outside. The metal plate layer 2 is a steel plate layer, an iron plate layer or an aluminum plate layer. Because 2 inner walls of sheet metal layer are smooth, effectively reduce the flue gas because of the possibility that the friction can heat up in the pipeline, because its inner wall is smooth, even its health of service life overlength is cleared up easily, the health is up to standard easily.

As shown in fig. 2, in order to obtain a better heat insulation effect, the heat insulation layer 3 in example 1 is a cavity layer filled with inorganic glue or fireproof glue, so as to effectively prevent the heat transfer effect of an excessive temperature. In order to prevent that the flue gas temperature that the tuber pipe carried is too high, causes the reaction of conflagration, flame retardant coating 4 uses cement reinforcing silicate PLASTIC LAMINATED. Avoided the fire prevention layer too thick extravagant raw and other materials, increased the whole weight of tuber pipe, through preferred, the fire prevention layer thickness is 6 ~ 20 mm.

Example 2

As shown in fig. 3 to 4, the fire protection duct of embodiment 2 is formed by connecting a main duct 11, a branch duct 12 and an air opening 13, the main duct 11 and the branch duct 12 are connected into a whole, the branch duct 12 has a gap 121, and the air opening 13 is installed on the gap 121 of the branch duct 12. A general tuyere fixture can be mounted on the tuyere 13 by means of a fixture 4, which fixture 4 can be, for example, a self-tapping screw. The tuyere 13 may be optionally provided with a diffuser or the like. Sectioning the fireproof air pipe, wherein the sectioning direction is the direction of flue gas flow, and the side surface of the fireproof air pipe 1 is in a convex shape.

As shown in fig. 1-2, the composite fire-proof air duct 1 of embodiment 2 includes a metal sheet layer 2, a heat insulation layer 3, and a fire-proof layer 4 in sequence from inside to outside. The metal plate layer 2 is a steel plate layer, an iron plate layer or an aluminum plate layer. Because 2 inner walls of sheet metal layer are smooth, effectively reduce the flue gas because of the possibility that the friction can heat up in the pipeline, because its inner wall is smooth, even its health of service life overlength is cleared up easily, the health is up to standard easily.

As shown in fig. 2, in order to obtain a better heat insulation effect, the heat insulation layer 3 in example 2 is a cavity layer filled with inorganic glue or fireproof glue, so as to effectively prevent the heat transfer effect of an excessive temperature. In order to prevent that the flue gas temperature that the tuber pipe carried is too high, cause the reaction of conflagration, flame retardant coating 4 uses fibre reinforcement calcium silicate PLASTIC LAMINATED. Avoided the fire prevention layer too thick extravagant raw and other materials, increased the whole weight of tuber pipe, through preferred, the fire prevention layer thickness is 6 ~ 20 mm.

The working principle of the fireproof pipeline is as follows: the fan is communicated with a series of air outlets 13 through the fireproof pipeline 1, the fan is started to form negative pressure indoors, indoor polluted air is exhausted outdoors through the air outlets and the fan, and outdoor fresh air enters indoors through the air outlets.

The fire prevention tuber pipe of easily clearing up solve the hidden danger problem that exists at engineering fields such as industry and civil buildings, underground building, basement, subway air supply, discharge fume, replace traditional tuber pipe, its fire resistance limit is far more than the national standard requirement.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention in any way, so that any modification, equivalent change and modification made by the technical spirit of the present invention to the above embodiments do not depart from the technical solution of the present invention, and still fall within the scope of the technical solution of the present invention.

Claims

1. The composite fireproof air duct is characterized in that the duct wall of the air duct sequentially comprises a metal plate layer, a heat insulation layer and a fireproof layer from inside to outside.

2. The fire protection ductwork of claim 1 wherein said sheet metal layer is a steel, iron or aluminum layer.

3. The fire protection air duct of claim 2, wherein the metal sheet layer has a thickness of 0.1-1.5 mm.

4. The fire protection hose of claim 1, wherein the thermal insulation layer is a cavity layer filled with inorganic glue or fire protection glue.

5. The fire protection air duct of claim 1, wherein the fire resistant layer is a fiber reinforced silicate fire resistant panel, a cement reinforced silicate fire resistant panel, or a cement fiber fire resistant panel.

6. The fire protection air duct of claim 5, wherein the thickness of the fire protection layer is 6-20 mm.

7. The fire protection air duct according to any one of claims 1 to 6, wherein the fire protection air duct is formed by connecting a main air duct, a branch air duct and an air opening, the main air duct and the branch air duct are connected into a whole, the branch air duct has a gap, and the air opening is installed on the gap of the branch air duct.

8. The fire protection ductwork of claim 7, wherein a diffuser is mounted on said tuyere.

9. The fire protection air duct of claim 7, wherein the side of the fire protection air duct is "raised".