CN2035251U - Alarming fire-extinguishing device for leakage of liquefied petroleum gas stove - Google Patents

Abstract

The utility model belongs to leakage-proof and burning-proof safety devices of liquefied gas stoves, particularly a minitype automatic alarm fire-extinguisher, which is composed of an alarm and a fire-extinguisher, wherein, the alarm is composed of a gas-collecting box, a sounding chamber, a parting plate, a vortex hole, a sounding hole, a baffling sleeve and a sealing ring. The fire-extinguisheris composed of a launching tube, a gunpowder box, a blasting fuse, an isolating ring, an isolating pad, a cover and a supporting frame. The utility model has the advantages of strong practicality, high durability, simple structure, convenient installation and low cost. Once the gas leaks, the utility model can automatically alarm. O nce the fire occurs, the utility model can automatically extinguish the fire.

Description

Alarming fire-extinguishing device for leakage of liquefied petroleum gas stove

The utility model belongs to the safety feature that a kind of liquefied gas furnace anti-gas-leak catches fire, particularly a kind of miniature automatic warning flame snuffer.

At present, a large amount of used in LPG stove that use in city dweller and the commercial production, Tianjin, two big cities, capital promptly have user 1,400,000 approximately.Because casualty accidents such as improper use is caught fire, blast happen occasionally, cause heavy losses for the country and people's lives and properties, analyzing, take place liquefied gas furnace gas leakage according to the statistics made by the departments concerned catches fire and accounts for more than 98% of total domestic gas fire failure, ignition cause generally is cylinder for liquefied gas and is connected tight with pressure regulator or O-ring seal season cracking and losing waits and causes gas leakage and catch fire, also for want of civilian small-sized inexpensive fire distinguisher of while and can not in time put out to catch fire because of gas leakage and cause disaster.The reason that this gas leakage is caught fire is ubiquitous throughout the country.At above-mentioned situation, the investigation foreign data also has only price expensive combustable gas concentration alarm or people's manual manipulation flame snuffer, and these all can not adapt to China resident's economic capability.Therefore do not have a kind ofly when civilian or industrial liquefaction stove at present as yet, catch fire and the economical and practical safety equipment of the self-extinguishing of reporting to the police automatically at gas leakage.

The purpose of this utility model is to develop a kind ofly reports to the police once the safety feature of the self-extinguishing of catching fire automatically once leaking gas, and makes its microminiaturization, the low needs that are applicable to the general economic capability of China of price.

The technical solution of the utility model: the safety feature that this liquefied gas furnace anti-gas-leak catches fire is made up of alarm and flame snuffer, said alarm is installed in easy air-leak section between steam stove pressure regulator and the cylinder angle valve, its structure is to develop according to the principle of gas pulsation sounding, comprise collector box, the pronunciation chamber, partition, the eddy current hole, sound hole, interstage sleeve and O-ring seal, collector box and pressure regulator handwheel close proximity pronunciation chamber are in collector box, can cause the partition of eddy current to separate by one, collector box is communicated by an eddy current hole between the chamber with pronunciation, have a sound hole O-ring seal to place in the collector box on the outer wall of pronunciation chamber, interstage sleeve is placed on the gas piping; Said flame snuffer is installed on the pressure regulator dust cap, its structure comprises launching tube, gunpowder box, safety fuse, cage ring, isolating pad and lid and support, the launching tube injection orifice is aimed at the position that easily leaks gas and catch fire between cylinder angle valve and the pressure regulator, be fixed on the pressure regulator dust cap by support, the gunpowder box places the launching tube bottom, in adorn micro-gunpowder, fire extinguishing agent is some is closed by cap seal for dress in the launching tube, launching tube is equipped with safety fuse outward, introduce in the gunpowder box, cage ring and isolating pad place between gunpowder box and the fire extinguishing agent.

The course of work of the alarm in the said safety feature of the utility model: because this alarm sealing is installed in the easy air-leak section of steam stove, therefore after the liquefied gas that leaks pours collector box with himself gaseous tension, then this gas by collector box and pronunciation the eddy current hole between the chamber at the indoor generation eddy current of pronunciation, when converging through sound hole again, this swirl gas can produce certain frequency vibration sound wave when releasing, promptly as long as steam stove has gas leakage, this alarm is the energy sounding alarm just, use the steam stove person to arouse vigilance, in time get rid of principal fault to alarm no longer sounding be as the criterion, giving igniting again and using.

Flame snuffer in the said safety feature of the utility model is used with alarm, though being, its purposes take place cylinder angle valve to move back button or leakage alarm and the user fails in time to fix a breakdown and causes when gas leakage is caught fire, this flame snuffer is quick extinguishing automatically just, its course of work is: because this flame snuffer is installed on the pressure regulator dust cap, and the fire position that easily leaks gas between angle valve and the pressure regulator is aimed at for the fire extinguishing device jet mouth in the position, be in standing state, when getting final product the instantaneous ignition safety fuse when catching fire just in case leak gas, promptly can in 15 seconds, ignite gunpowder in the bucket and produce impulsive force powder extinguishing agent is ejected into the place that catches fire, make fray-out of flame.

Superiority of the present utility model is: 1, practical.The position has gas leakage to exist as long as steam stove easily leaks gas, no matter thereby the much equal alarm vibrations sounding of installation that can make of leak pressure cause that the user is vigilant; If control in time and causing when catching fire is failed in gas leakage, do not need the flame snuffer of manually-operated, installation can be in 15 seconds quick extinguishing automatically, can not cause damage; 2, economy and durability.It is little, simple in structure, easy for installation, cheap that alarm that comprises in this safety feature and flame snuffer are volume, and can use for a long time, is in good effective status.

Below further specify present technique with embodiment of the present utility model and accompanying drawing.

Accompanying drawing 1 is an overall construction drawing of the present utility model.

Accompanying drawing 2 is an A-A sectional view of the present utility model.

Wherein 13 among Fig. 1 is that cylinder angle valve, 14 is the pressure regulator handwheel, 15 is that pressure regulator, 16 is the lid of flame snuffer for interstage sleeve, 12 for O-ring seal, 1 for cylinder for liquefied gas, 11, and 2 is that support, 3 is that isolating pad, 4 is that cage ring, 5 is that safety fuse, 6 is that gunpowder box, 7 is launching tube.

8 is that pronunciation chamber, 9 is that sound hole, 10 is that collector box, 18 is that partition, 19 is the eddy current hole among Fig. 2.

Embodiment: the safety feature that the anti-gas-leak of the liquefied gas furnace that the utility model is made up of an alarm and a flame snuffer catches fire, said alarm is installed in easy air-leak section between steam stove pressure regulator 15 and the cylinder angle valve 13, structure comprises collector box 10, pronunciation chamber 8, partition 18, eddy current hole 17, sound hole 9, interstage sleeve 11 and O-ring seal 12, after the gas that leaks pours collector box 10 with himself pressure, then this gas by the eddy current hole 17 of collector box 10 and 8 of chambers of pronunciation at the indoor generation eddy current that pronounces, when this swirl gas can produce the vibration sound wave of certain frequency again when sound hole 9 releases, promptly as long as steam stove has gas leakage, this alarm will sounding alarm; Said flame snuffer is installed on the dust cap of pressure regulator 15, its structure comprise launching tube 7, gunpowder box 6, safety fuse 5, cage ring 4, isolating pad 3 and cover 1 with support 2, when leakage alarm is failed in time to fix a breakdown and caused that gas leakage is when catching fire, the safety fuse that extends 5 of flame snuffer is being drawn, the gunpowder in the bucket that promptly can ignite in 15 seconds is ejected into powder extinguishing agent to catch fire and locates to make fray-out of flame and produce impulsive force.

Alarm component can adopt moulds or thin metal is made, the desirable diameter 40mm of collector box, thick 10mm firmly; The flame snuffer parts can adopt common plastics to make, and its emission tube length can be 120mm, and diameter can be 35mm, and powder volume can be 6 milliliters in the gunpowder box, and fire extinguishing agent can be taked 40 milliliters of silication powder extinguishing agents.

Claims (1)

1, the safety feature that a kind of liquefied gas furnace anti-gas-leak catches fire, it is characterized in that it is made up of alarm and flame snuffer, said alarm is installed in easy air-leak section between steam stove pressure regulator and the cylinder angle valve, its structure comprises collector box, the pronunciation chamber, partition, the eddy current hole, sound hole, interstage sleeve and O-ring seal, collector box and pressure regulator handwheel close proximity, the pronunciation chamber is in collector box, can cause the partition of eddy current to separate by one, collector box is communicated by an eddy current hole between the chamber with pronunciation, on the outer wall of pronunciation chamber a sound hole is arranged, O-ring seal places in the collector box, and interstage sleeve is placed on the gas piping; Said flame snuffer is installed on the pressure regulator dust cap, its structure comprises launching tube, gunpowder box, safety fuse, cage ring, isolating pad and lid and support, the launching tube injection orifice is aimed at easily gas leakage and the position that catches fire between cylinder angle valve and the pressure regulator, be fixed on the pressure regulator dust cap by support, the gunpowder box places the launching tube bottom, in adorn micro-gunpowder, the dress fire extinguishing agent is some in the launching tube, by cap seal close, launching tube is equipped with safety fuse outward, introduce in the gunpowder box, cage ring and isolating pad place between gunpowder box and the fire extinguishing agent.