CZ291293A3 - Safety fire and explosion-proof device - Google Patents

Abstract

The device consists of a housing (1) made of polyethylene a hose inside which the pyrotechnic part (3) is placed, provided with a spreading system (4), the remaining inner the hose space (2) is filled with a fire extinguishing component. In a preferred embodiment the embodiment is equipped with a pyrotechnic system with a spreading system (6) at least at one end.

Description

(57) The apparatus consists of a sleeve (1) consisting of a polyethylene hose, inside which a pyrotechnic part (3) is provided, provided with a priming system (4), the remaining interior space (2) of the hose being filled with a fire extinguishing component. In a preferred embodiment, the pyrotechnic system is provided with a self-priming system (6) at least at one end.

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The present invention relates to a design of a safety device for extinguishing fires resulting from the propagation of flame or pressure waves. This equipment is designed as a stable equipment for fire exnonovans sites.

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Of the available sources of information, fire-extinguishing structures are known, which are very complex and are based on the design of the printing container in which the fire-extinguishing agent is placed. The vessel is connected to a sensor that reams for temperature rise and flame. The sensor is further connected to the central exchange and, upon command or signal, the pressure vessel is opened and the extinguishing agent is released into the space. The opening of the pressure vessel or ^-. it is weakened at a given location, in part, by an explosion, a discovery, or mechanically, causing a 'rupture' of the membrane. ......

Another known device consists in placing the extinguishing agent in the container - or container - and by passing through the flame of the non-air pressure wave of the jerk to overturn or mechanically disturb the container and the extinguishing agent is discharged into space. The disadvantages of using these systems are, for example, that the containers filled with water must be used massively and after some distances. locations. in the galleries. Thus, the function of the mechanism already very far from the site of intervention can be due to the fact that upon shattering of the tray the arrival of:

and the effect of cooling the pre-reacted gases and thereby interrupting the heat transfer at the reaction zone is very slow and insufficient at massive explosions.

SUMMARY OF THE INVENTION The above-mentioned drawbacks are largely overcome by a new design of an automatic fire-fighting device consisting of a pyrotechnic part consisting of an automatic activation mechanism, a grating part and a propellant element and the actual fire extinguishing part itself.

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The construction of the radiator consists of a polyethylene hose in which a pyrotechnic part is housed, for example a blasting box with a 3g / m explosive charge. The remaining space of the polyethylene hose is filled with a fire extinguishing component. Thus, the device consists of two or more serially inserted pouches, one of which is an initiator and a fire-extinguishing container, which may be powder, emulsion or binary. local automatic device.

The essence of the operation of the device lies in the automatic activation of the pyrotechnic part of the device under the influence of an external stimulus (impact -, - - «change in the nature of inertia forces, or a combination with a human factor). When the pyrotechnic part is activated, the extinguishing agent is spread out of the area. '

The advantage of glowing is that it is simple and safe to function at the desired location and to maintain the required parameters of various theoliths. operating conditions. The most important advantage of the device is ,, .ze ^- with cesium ran · -;

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i.iiicisci o re η o ΐ ě ce io io io o flame or explosion, eg mine gases, dust mixtures, etc. , zni Zenieni, ntere o. - '>' «i — v ø ^- 4 Z · * kp ZO '~ * ^Z

- * V j - II * * thereby extinguishing substance óostává upstream of the reaction zone and then the arrival of the reaction zone into the extinguishing medium Latxa interrupt occurs in an exothermic reaction with the wavefront to complete the winding -explose _r re.spe.ktive fire. . ____

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The device does not require • any special demands on the operator, neoox is not a pressure something else special container.

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The fire safety and fire protection device is shown in partial cross-section in the accompanying drawings, in which Figure 1 shows a device consisting of a polyethylene neocene. Endless haoice with stored pyrotechnic part and with fire extinguishing component filling. Giant. 2 represents a device consisting of an outer casing in which a pyrotechnic system is disposed and which is additionally provided with an automatic expansion system. Giant. 3, however, the solution is in principle a jumpable nove o.

with the rozoilem that her komopr.L-ntou. Ns.

v ro i e c nuicu e rsnoeni, that stored in the internal cruote.

In Fig. 4, there is shown a device consisting of an outer housing, in the center of which is another housing with a different password. 5 shows a combination of two shells with different fire extinguishing components, the activity of which is achieved by mixing is conditioned by the pyrotechnic part.

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- 4 /, with filling · 3 g / n explosive. The remaining interior space 2 of the polyethylene hoses is filled with a fire extinguisher of the conventional type. The detonating cord is provided with a 4 'igniter system, which consists of a specially designed mini detonator initiated either by an external stimulus (from the control station) or automatically by the flame passage.

A further exemplary embodiment is shown in Fig. 2, in which the device consists of an outer casing 2 in which a pyrotechnic system consisting of a detonating cord 3 is provided, which at least at one end is provided with a self-supporting rasping system 6 operating at the end. on the principle of change of inertia moments of the whole. The inner space of the housing is filled with an extinguishing component of a conventional type such as emulsion, powder, liquid.

Next; The embodiment shown in FIG. 3 is essentially the same as in FIG. 2. but the difference is that the pyrotechnic system is housed in the inner tube 6, which in this embodiment ^- is used, the self Ni .element, /

Fig. 4 shows an exemplary embodiment consisting of an outer sleeve 2, in which space 2 a fire-extinguishing agent is stored. In the center of the apparatus there is another sleeve 5A which is filled with the extinguishing agent 3 in emulsion consistency. Středem'probíhá. pyrotechnic part 3 with priming systems 4 and .6.

Other exemplary embodiments shown in FIG. 5 consist of two housings 5 and 4A containing in their space 2 binary fire extinguishing agent components 9 and 10 which are fully functional upon activation of the pyrotechnic portion upon mixing of the binary mixture components. The pyrotechnic part 3 runs through the center with the ignition systems 4 and 6.

Safety fire and explosion-proof equipment can be manufactured in an industrial manner using conventional technologies, manufacturing processes and materials from the field of plastics and pyrotechnics production, while maintaining special conditions for its and control.

They will be used in particular in mining workshops, combustible tanks, chemical plants, in areas with a risk of explosion of gases, vapors with dusts, and in the case of a-U.

Industrial-usability

Claims (4)

PATENT CLAIMS A fire-fighting and explosion-proof device comprising: fire-extinguishing component housings and a pyrotechnic system with a fire-fighting system which releases fire-extinguishing components into space, characterized in that the housing (1) consisting of a polyethylene hose having a pyrotechnic part (3) disposed therein. (court-ble-alt-evi-oá) provided with an ignition system (4) is filled with a fire extinguishing component. t 2. Safety fire-fighting and explosion-proof equipment according to ku heh-Ί is characterized in that it consists of a housing (5) in which a pyrotechnic system is provided, provided at least at one end with an automatic ignition system (6). 3. The fire-fighting and explosion-proof device according to claim 1, characterized in that the pyrotechnic system is embedded in an inner tube (6) with a self-initiating element (7). nzrO 4. A fire-fighting and explosion-proof device according to claim 3, characterized in that in the outer casing (5) in which the powdered extinguishing agent is stored, a housing (A) filled with an extinguishing agent (8) is placed in emulsion consistency. wherein the pyrotechnic part (3) with the ignition system (4) and (6) runs through the center.