CN201649359U - Plywood type moisture-resistant lightweight firewall - Google Patents

Abstract

The utility model is a splint-type moisture-resistant lightweight firewall, which includes a fire-proof board and a flame-retardant cotton layer sandwiched in the fire-proof board, wherein a moisture-proof film is arranged between the fire-proof board and the flame-resistant cotton layer. The utility model cuts off the passage of water vapor penetration by adding a moisture-proof film to achieve the moisture-proof effect, avoids the deformation of the flame-retardant cotton layer due to moisture, prolongs the service life of the firewall, and improves the fire-proof effect. The heat has a good reflection effect, which effectively improves the fire resistance of the fireproof partition wall, and can also prevent the rock wool fiber from leaking out during long-term use, and keep the environment clean, which is economical and practical.

Description

Plywood type moisture-resistant lightweight firewall

technical field

The utility model relates to the field of construction engineering, in particular to a splint type lightweight firewall.

Background technique

The structure of the existing lightweight fireproof partition wall is fireproof board-rock wool layer-fireproof board. In the actual application process, it often occurs that the rock wool filling layer falls and deforms, resulting in uneven fireproof performance of the lightweight fireproof partition wall. After a period of time, the fire resistance time requirement of the original design could not be met. At the same time, after several years of use, the outer plywood bulged due to extrusion, which affected the flatness of the wall.

The reason is mainly because rock wool is a discontinuous flocculent fiber material of artificial light silicate. The outer panels and joints penetrate to the inside of the lightweight firewall. When the partial pressure of water vapor penetrating into the rock wool layer is greater than the saturated vapor pressure corresponding to the temperature there, condensation and dampness will occur in the rock wool, resulting in deformation and drop. Especially in the rainy and humid areas in the south, the air humidity is high, and the deformation of rock wool is more obvious. Therefore, it is very important to design an economical and practical moisture-resistant lightweight firewall.

Contents of the invention

In order to solve the above problems, the purpose of this utility model is a splint-type moisture-resistant lightweight firewall, which has a good moisture-proof effect and improves the uniformity of the fireproof performance of the firewall.

The purpose of this utility model is achieved as follows: a splint type moisture-resistant lightweight firewall, including a fireproof board and a flame-retardant cotton layer sandwiched in the fireproof board, is characterized in that: the fireproof board and the flame-retardant cotton layer There is a moisture-proof membrane in the room.

The shape and size of the moisture-proof film are similar to the shape and size of the fireproof board.

The moisture-proof film is plastic film or metal foil, and the metal foil is preferably aluminum foil.

The flame retardant wool layer is rock wool layer, mineral wool layer or glass wool layer.

The utility model cuts off the passage of water vapor penetration by adding a moisture-proof film to achieve the moisture-proof effect, avoids the deformation of the flame-retardant cotton layer due to moisture, prolongs the service life of the firewall, and improves the fire-proof effect. The heat has a good reflection effect, which effectively improves the fire resistance of the fireproof partition wall, and can also prevent the rock wool fiber from leaking out during long-term use, and keep the environment clean, which is economical and practical. .

Description of drawings

Fig. 1 is the elevation schematic view of the utility model;

Fig. 2 is the section A-A of Fig. 1 .

Detailed ways

As shown in the figure, the utility model is a splint-type moisture-resistant lightweight firewall, which includes a fireproof board 1 and a flame-retardant cotton layer 3 sandwiched in the fireproof board 1. A moisture-proof film 2 is provided between them. The shape and size of the moisture-proof film 2 are similar to those of the fireproof board 1 , and cover the inner surface of the fireproof board 1 completely as far as possible, so as to completely and effectively block water vapor. The fireproof board 1 includes transverse keels 11 and vertical keels 12 that intersect vertically and horizontally. Generally, the moisture-proof film is made of plastic film or metal foil, the metal foil is preferably aluminum foil, and the flame-retardant cotton layer is made of rock wool layer, mineral wool layer or glass wool layer.

As shown in Figure 2, the structure of the utility model is light steel keel fireproof board 1-moisture-proof film 2-flame-retardant cotton layer 3 (rock wool)-moisture-proof film 2-light steel keel fireproof board 1.

In the splint-type lightweight firewall structure, due to the condensation of water vapor in the air, the increase in weight and humidity of rock wool exceeds the allowable increase in its own weight and humidity, that is, Δω＞[Δω] ([Δω] is the allowable increase in weight and humidity of the material amount), resulting in rock wool falling and deforming, which weakens the fireproof performance of the lightweight firewall, and causes the outer plate to bulge and affect the appearance. The utility model prevents the water vapor in the air from penetrating into the rock wool by adding a moisture-proof film 2 on both sides of the flame-retardant cotton layer 3, so that the structural performance of the lightweight firewall is stable, and the moisture-proof film layer has a certain effect on the radiant heat generated when a fire occurs. Good reflection effect, so that the lightweight firewall can achieve the best fire prevention effect and ensure the long-term flatness of the outer wall, and it can also prevent the rock wool fiber from leaking out during long-term use and keep the environment clean.

Claims (5)

1. a clamping plate type moisture resistance light fire-proof wall comprises PLASTIC LAMINATED and is sandwiched in the interior retardant cotton layer of PLASTIC LAMINATED, it is characterized in that: be provided with moisture sealer between described PLASTIC LAMINATED and the retardant cotton layer.

2. clamping plate type moisture resistance light fire-proof wall according to claim 1 is characterized in that: described moisture sealer shape size is similar with PLASTIC LAMINATED shape size.

3. clamping plate type moisture resistance light fire-proof wall according to claim 1, it is characterized in that: described moisture sealer is plastic sheeting or metal forming.

4. clamping plate type moisture resistance light fire-proof wall according to claim 3, it is characterized in that: described metal forming is an aluminium foil.

5. clamping plate type moisture resistance light fire-proof wall according to claim 1, it is characterized in that: described retardant cotton layer is rock wool layer, mineral wool layer or glass wool layer.

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