JPH0411190A - Fireproof window - Google Patents

Abstract

PURPOSE: To prevent the breaking of double glazing window panes by holding a section between the double window panes under an airtight state and arranging a thermal fuse melted when air in an opening reaches a fixed temperature in a fire in an airtight manner. CONSTITUTION: Double glazing window panes 4 are composed of a pressure- resistant window pane 7 and a heat-resistant window pane 8 integrally connected so as to have a required opposed space through an annular spacer 5. The outer circumferential section of the spacer 5 is filled with fillers 16 and a section between both window panes 7, 8 is held under an airtight state, and a thermal fuse 9 is inserted into a through-hole 10 in an airtight manner. When air in the space 6 reaches a fixed high temperature in a fire, the fuse is melted, and air at high pressure and the high temperature is discharged to the outside from the through-hole 10. Accordingly, the possibility of the breaking of the double glazing window panes can be eliminated at the pressure of high-temperature air while a fire, smoke, a gas or the like is interrupted surely and the spread of the fire can be prevented.

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a fire protection window that normally has good transparency and can block flames, smoke, gas, etc. in the event of a fire.

(Prior art) For example, fire windows formed on the outer panels of ships' cabins usually include
In addition to having good transparency, it can withstand waves, wind pressure, etc., and is also able to block flames, smoke, gas, etc. in the event of a fire, so it is generally a multilayer structure with excellent pressure and heat resistance. Installing window glass. This double-layer window glass consists of a pair of window glasses that are integrally connected with a required gap between them via a spacer.

(Problems to be Solved by the Invention) In the above-mentioned conventional fire protection windows equipped with double-pane glass, when a fire occurs, the air sealed in the gap between both window glasses thermally expands due to the high heat and the window glass There was a risk that the original purpose of blocking flames and preventing the spread of fire could not be achieved.

The present invention has been made in view of the above-mentioned conventional problems, and an object of the present invention is to provide a fire protection window that normally maintains good transparency of the double-layered window glass and prevents the double-layered window glass from being destroyed in the event of a fire. There is.

(Means for Solving the Problems) The structure of the present invention for achieving the above object will be explained using FIG. 1 corresponding to an embodiment. In a fire protection window equipped with a double-glazed window glass 4, which is integrally connected with a spacer 5 interposed between the inner surfaces thereof so as to have a required opposing gap 6, the air in the gap 6 is A configuration is adopted in which exhaust means 9 or 18 is provided to exhaust the high temperature air to the outside when the high temperature reaches a predetermined temperature.

(Function) In the above configuration, if a fire occurs, the double-paned window glass 4
The air inside is heated and expands, increasing the air pressure, but when it reaches a predetermined high temperature, the high temperature air inside the double-pane window glass 4 is exhausted to the outside by the exhaust means 9 or 18.
Breaking of the double-layer window glass 4 is prevented.

(Embodiment) FIG. 2 shows a fire protection window which is an embodiment of the present invention, and as shown in FIG. It consists of a double-layered window glass 4 attached to the outdoor side surface of the opening 2 via a window frame 3, and as shown in FIG. It is composed of a pressure-resistant window glass 7 and a heat-resistant window glass 8 that are integrally connected to each other so as to have a required facing gap 6 therebetween, and the spacer 5
The outer periphery of the window glass 7.8 is filled with a filler 16 such as hot-melt butyl rubber to maintain the space between the window glasses 7.8 in an airtight state.

Further, as shown in FIG. 1, reference numeral 9 denotes a temperature fuse (exhaust means) that is airtightly inserted into through holes lo formed at appropriate intervals in the spacer, and is connected to the cylindrical casing 9a and the casing. It consists of a fuse body 9b with a low melting point (for example, a melting temperature of 125°C) filled in the interior of the fuse body 9a, and the through hole 10 of the spacer 5 is normally closed to prevent external air from entering the gap 6 of the double-layer window glass 4. In the event of a fire, when the air in the gap 6 reaches a predetermined high temperature, it will melt and the high-pressure, high-temperature air in the gap 6 will pass through the through-hole 10 and double. The liquid is discharged to the outside of the window glass 4.

In FIG. 1, reference numeral 11 denotes a heat-reflecting film consisting of a transparent heat-reflecting layer and a resin film such as a polyester film attached to the inner surface of the heat-resistant window glass 8, which protects the heat-resistant window glass from high heat during a fire. 8 and also serves to prevent the glass from scattering in the event of breakage. If the heat ray reflective film 11 is also attached to the inner surface of the pressure-resistant window glass 7, as shown by the imaginary line in the figure, the heat resistance performance as a fire protection window will be further improved.

The window frame 3 includes a window frame main body 12 having a cross-section shape welded to the hull outer plate 1, a window glass holding frame 13, and the holding frame 1.
A heat-resistant packing 15 is interposed between the double-layer window glass 4, the window frame body 12, and the window glass holding frame 13, and a heat-resistant A sex seal 19 is enclosed. Further, 17 is a desiccant filled inside the spacer 5.

Although the temperature fuse 9 was used as the exhaust means in the above embodiment, an air pressure regulating valve 18 may be used instead, as shown in FIG. 4. The valve 18 includes a cylindrical valve body 18a that is hermetically fitted into a through hole 10 formed in the spacer 5.
It consists of an airtight ball 18b housed inside the valve body 18a, and a spring 18c that biases the ball 18b in the valve closing direction. This prevents external air from entering the gap 6, and in the event of a fire, when the air pressure in the gap 6 reaches a predetermined high pressure, the high pressure causes the ball 18b to spring into the spring 18c.
It is pushed down against the pressure and becomes a released state, and the high-pressure high-temperature air in the gap 6 is discharged to the outside of the double-paned window glass 4.

Further, in the embodiment of the present invention, the pressure-resistant window glass 7 is arranged on the indoor side, and the heat-resistant window glass 8 is arranged on the outdoor side, but the present invention is not limited to this, and the heat-resistant window glass 7 is arranged on the indoor side. It goes without saying that the same effect can be achieved even if a pressure-resistant window glass is placed on the outside of the room.

(Effects of the Invention) According to this invention, when the air in the gap between the double-panel windows becomes hot due to a fire occurring indoors or outdoors, the high-temperature air in the gap is exhausted to the outside by the exhaust means. , there is no risk of the double-glazed window glass being destroyed by the pressure of high-temperature air within the gap, and it blocks fire, smoke, gas, etc.
Fire spread can be reliably prevented.

If a heat-reflecting film is attached to the inner surface of a heat-resistant window glass, the heat-resistance performance of the window glass will be further improved, and even if the window glass is damaged, it will prevent it from escaping. can.

Furthermore, if a temperature fuse is used as the above-mentioned exhaust means, normally the through-hole formed in the spacer that maintains the above-mentioned gap is reliably closed, and when a fire occurs, it is immediately melted to open the above-mentioned through-hole, and the high temperature inside the gap is Air can be quickly exhausted to the outside.

Furthermore, if an air pressure regulating valve is used as the exhaust means, the through hole formed in the spacer is normally closed securely, just like the temperature fuse, and in the event of a fire, the through hole is immediately opened due to the pressure increase due to high temperature. As a result, the high temperature air within the gap can be quickly discharged to the outside.

[Brief explanation of drawings]

Fig. 1 is a vertical cross-sectional view of the main parts of a fire protection window according to an embodiment of the present invention, the left side of Fig. 2 is a front view of the same fire protection window, the right side of Fig. 2 is a rear view of the same fire protection window, and Fig. 3 is a front view of the same fire protection window. FIG. 2 is a view taken along arrows 2--m in FIG. 2, and FIG. 4 is a vertical cross-sectional view of a main part of a fire protection window according to another embodiment of the present invention. 4... Double-layer window glass, 5... Spacer, 6... Gap, 7... Pressure-resistant window glass, 8... Heat-resistant window glass, 9... Temperature fuse (exhaust means), 18... Air pressure regulating valve (exhaust means). Figure 1 Alunae Machinery Co., Ltd. Maki Figure Figure 1

Claims (4)

[Claims] (1) A fire protection system equipped with a double-layer window glass in which a pressure-resistant window glass and a heat-resistant window glass are integrally connected to each other with a required facing gap between the inner surfaces of the two. A fireproof window comprising an exhaust means for discharging the high temperature air to the outside when the air within the gap reaches a predetermined high temperature. (2) The fire protection window according to claim 1, wherein a heat ray reflective film is adhered to the inner surface of the heat-resistant window glass. (3) The exhaust means comprises a thermal fuse that is hermetically fitted into a through hole formed in the spacer and melts when the air within the gap reaches a predetermined high temperature.
Or a fire protection window as described in 2. (4), the exhaust means is hermetically inserted into the through hole formed in the spacer, and takes advantage of the fact that when the air in the gap reaches a predetermined high temperature, the air pressure becomes high;
A fire protection window according to claim 1 or 2, comprising an air pressure regulating valve that is opened by the air pressure.