CN2072412U

CN2072412U - Automatic foam fire extinguisher for storehouse

Info

Publication number: CN2072412U
Application number: CN 90209853
Authority: CN
Inventors: 李德贵
Original assignee: Individual
Current assignee: Individual
Priority date: 1990-07-05
Filing date: 1990-07-05
Publication date: 1991-03-06

Abstract

An automatic foam fire extinguisher for a storehouse comprises an inner container 1, an outer container 3, an inner container plug 2, an outer plug 7, a bottom cover 5, a nozzle 8 and the like. The fire extinguishing device is characterized in that the charging reserved space of the inner container 1 is smaller than that of the outer container 3, the diameter of the inner container plug 2 is larger than that of the outer plug 7, after charging, under the heating condition, the inner container plug 2 is firstly flushed by the evaporation pressure in the inner container 1, so that acid-base solutions in the inner container and the outer container are mixed, high-pressure carbon dioxide gas is generated, the outer plug 7 is flushed, and the fire extinguishing device is sprayed to a preset area to perform the fire extinguishing function. The utility model has the advantages of simple structure, low cost, practicality and automatic starting. Has the advantages of common foam fire extinguisher, electric control automatic fire extinguisher, etc.

Description

Automatic foam extinguisher for storehouse

The utility model belongs to fire plant, the foam Automatic Fire Extinguisher of more specifically saying so and being used for storehouse.

Common foam annihilator is manually operated, under the unmanned state, perhaps is subjected to the restriction of the intensity of a fire, geographical position, particular surroundings, and under the situation that the fire fighter can not be close, the regular-type foam fire extinguisher just can not be gone the function of executing its fire-fighting fire extinguishing.Temperature control, light-operated and cigarette control automatic fire extinguisher commonly used at present, what adopt mostly is the working method of direct electrical equipment sensing and control, perhaps change out machinery is carried out in level signal output with control working method by other sensing element, this class automatic fire extinguisher existence causing easily misoperation, the price height, do not have electricity shortcoming such as just can not work, and make application be subjected to certain restriction.

The purpose of this utility model is to overcome regular-type foam fire extinguisher and electrical sensing, the deficiency of electrical control automatic fire extinguisher and a kind of nothing electricity operation that designs, and starting automatically, cheap difference simple in structure are held the differential foam Automatic Fire Extinguisher of temperature sense.

Technical solution of the present utility model is: adopt difference to hold the principle of warm pressure-sensitive difference, be provided with the temperature-sensitive starting device on the basis of common foam annihilator, and realize the function of self-extinguishing.Mainly be made of inner bag, outer courage and bottom, the inner bag suspension is in outer courage inside, and outer courage is acid cavity volume, and inner bag is alkaline cavity volume; Inner bag is separated with acid cavity volume by inner bag plug press seal.It is bigger that the diameter of inner bag plug designs, and is 3-8 times of outer plug, and the charging headspace of inner bag is than the little 4-20 of charging headspace times of outer courage, and the acid solution that the alkaline solution of inner bag filling is filled than outer courage is easier to volatilization.Wash open earlier at the back inner bag plug that is heated guaranteeing like this, acid-base solution mixed, and produce the high-pressure carbon dioxide fire-fighting fire extinguishing, on bottom, have guiding gutter, the size of guiding gutter less than inner bag plug diameter greater than the height of inner bag plug.

Fig. 1 is the structural representation of storehouse foam Automatic Fire Extinguisher;

Fig. 2, Fig. 3 are the part drawing of storehouse foam Automatic Fire Extinguisher.

Below in conjunction with accompanying drawing storehouse foam Automatic Fire Extinguisher is described in further detail:

In the inner bag 1 alkaline solution is housed, inner bag plug 2 sealings of jumping a queue completely cut off itself and outer courage 3.The diameter of inner bag plug 2 is bigger, is 3-8 times of outer plug 7, and polytetrafluoroethylmaterial material is made; Outer courage 3 to be connected with plain cushion 12 jointly by six nuts 11 with bottom 4 and to form an acid cavity volume in order sealing, and is lined with asbestos pad 5 between outer courage 3 and the bottom 4; Inner bag 1 suspension can mix in order to guarantee acid ﹠ alkali liquid liquid well in the inside of outer courage 3.Inner bag 1 is propped certain height by outer courage base plate 6, and outer courage base plate 6 structure charts as shown in Figure 2; Outer plug 7 is filled on the spout on the bottom 48, fills in 7 structure outward as shown in Figure 3; In the inboard of spout 8, design has a guiding gutter 9, and the size of guiding gutter 9 greater than its thickness, after stoping inner bag plug 2 to be gone out, is blocked spout 8 less than the diameter of inner bag plug 2, and the inside at inner bag 1 and outer courage 3 is provided with the charging waterline, to guarantee the accurate of headspace; Suspension ring 10 of welding on the courage 3 are convenient to the suspension of fire extinguisher outside.

During use, soda acid medicinal powder that will be identical with the regular-type foam fire extinguisher is mixed with acid-base solution, and alkaline solution is loaded on inner bag 1 to waterline, compresses inner bag plug 2; Acid solution is loaded on outer courage 3 to waterline, covers bottom 4, compress, press outer plug 7 at last, be inverted and hang on the anchor point with nut.Be heated when reaching more than 80 ℃, the inside and outside courage of foam Automatic Fire Extinguisher all will produce certain evaporating pressure, because the charging headspace of inner bag 1 is greater than 4-20 times of outer courage, evaporating pressure in the inner bag 1 will be higher than outer courage like this, simultaneously, the lifting surface area of inner bag plug 2 is also filled in 7 big 10-50 times outward, can guarantee effectively that inner bag plug 2 is prior to outer plug 7 startings, and acid-base solution is mixed and generation high-pressure carbon dioxide gas, wash outer plug 7 open and spray the function of execution automatic fire control fire extinguishing to the fate.

The utility model compared with prior art, have simple in structurely, cheap, it is unattended not have electricity, automatically starting, have concurrently regular-type foam fire extinguisher and automatically controlled automatic fire extinguisher the advantages such as length, be the fire fighting extinguisher of the indispensability in the emphasis fire-fighting zones such as storehouse, tank farm.

Claims

1, a kind of storehouse foam Automatic Fire Extinguisher is made up of inner bag 1, outer courage 3, bottom 5, spout 8 etc., it is characterized in that adding on the said inner bag 1 being plugged with inner bag plug 2, adds on the spout 8 and fills in 7 beyond the Great Wall, and spout 8 inboards have guiding gutter 9;

2, foam Automatic Fire Extinguisher as claimed in claim 1, the diameter that it is characterized in that inner bag plug 2 are 3-8 times of outer plug 7;

3, foam Automatic Fire Extinguisher as claimed in claim 1, the charging headspace that it is characterized in that inner bag 1 are than the little 4-20 of charging headspace of outer courage 3 doubly;

4, foam Automatic Fire Extinguisher as claimed in claim 1 is characterized in that the diameter of the size of guiding gutter 9 less than inner bag plug 2, greater than its height.