CN2195703Y

CN2195703Y - Safety device for multi-function gaseous-burner

Info

Publication number: CN2195703Y
Application number: CN 94238876
Authority: CN
Inventors: 杨建成; 须惠良
Original assignee: 袁国华
Priority date: 1994-06-13
Filing date: 1994-06-13
Publication date: 1995-04-26
Anticipated expiration: 2004-06-13

Abstract

The utility model provides a safety device for a combustion gas appliance, which is composed of a power supply, a pulse igniter, a burner, a flame detector, an electronic timer, a timer, an alarm buzzer and a flameout safety protecting valve. If an accident flameout happens when the combustion gas appliance works, the utility model can automatically reignite to make the gas burn again. If the gas can not be ignited after reignition, a gas supply valve is quickly closed to cut off the air supply, and the alarm buzzer send out alarm sounds at the same time; thereby, the accidents, such as poisoning, fire hazard, explosion, etc., which are caused by the external leakage of combustion gas can be prevented. The utility model also has the timing function, and is applicable to the combustion gas appliances, such as gas water heaters, gas warmers, gas burning roasters, etc.

Description

Safety device for multi-function gaseous-burner

The utility model relates to a kind of safety guard of gas appliance; particularly a kind ofly can light a fire automatically once more when on the family expenses gas-cooker, running into accident extinguishing; as igniting is invalid automatically once more, can closes source of the gas automatically and send flame-out warning and be provided with time-controlled safety guard.

Use similar gas appliance safety guard generally can only when the burner accident extinguishing, close source of the gas automatically now.It moves magnetic valve by the thermocouple effect and controls gas source switch.Because thermocouple heats up, cooling needs certain hour; the time that magnetic valve action control fuel gas source valve Push And Release is used is longer; particularly flame-out to close time of source of the gas to the protective device action longer from burner; during this period of time just may leak more combustion gas, cause unsafe factor.In addition, this device as supporting use then need two protective devices on family expenses combustion gas eyes kitchen range, and cost is just high, in making, low-grade kitchen range raise the price more.

The purpose of this utility model is to provide a kind of multi-functional gas appliance safety guard; meet accident when flame-out at gas appliance; can not only in time close source of the gas; and igniting once more automatically earlier; can burner be lighted once more; as light a fire in the time of to light combustion gas once more after taking place to stop working; the valve of safety guard is action rapidly; close the air feed path immediately; simultaneously alarm buzzer sends alarm signal, prevents the combustion gas accidents such as causing poisoning, fire and blast that leaks effectively.The safety protective device also is provided with timing controlled burning time.

Fig. 1 is a theory diagram of the present utility model,

Fig. 2 is the section of structure of flame-out safety protective valve.

Principle of the present utility model is to realize like this. It is made up of power supply, pulse igniter, burner, flame detector, electronic timer, timer, alarm buzzer and flame-out safety protective valve. Pulse igniter, flame detector, electronic timer, alarm buzzer all join with power supply. Flame detector is made up of flame sensor, amplifier and comparator, and it can in time detect burner is burning or flameout state, and can send that corresponding signal controlling pulse igniter is lighted a fire again and electronic timer picks up counting when flame-out recording.

Flame-out safety protective valve is made up of safety valve shell＜11 〉, valve rod＜13〉assembly, magnetic valve＜3〉assembly, valve gap＜4〉assembly and air inlet connecting bend＜9 〉.Valve rod＜13〉assembly is arranged in the safety valve shell＜11 〉, it is by valve rod＜13 〉, ring washer＜5 〉, two identical spring(-supported) mounts＜6 〉, compression spring＜7〉are formed, with safety valve shell＜11〉contact position sealing ring＜8 〉,＜12〉are housed, valve gap＜4〉assembly is made up of valve gap＜4〉push rod＜1〉and adjusting nut＜2 〉.Adjusting nut＜2〉can be regulated the size of push rod＜1〉telescopic displacement on push rod＜1 〉, the part that push rod＜1〉is gone up in valve gap＜4〉has a locating slot.Valve gap＜4〉assembly and magnetic valve＜3〉fuse.There is positioning head to locate on magnetic valve＜3〉termination with the locating slot on the push rod＜1 〉.Air inlet pipe connecting bend＜9〉one ends and safety valve shell＜11〉outlet side join, and sealing ring＜10〉sealing is equipped with in the junction, and the other end and gas appliance pipeline are connected to the burner gauge tap.The inlet end of safety valve shell＜11〉links to each other with fuel gas source.

When gas appliance uses, press earlier lower push-rod＜1 〉, the positioning head of magnet valve＜3〉enters positioning and fixing in the locating slot of push rod＜1 〉, and back down valve rod＜13 〉, the gap that combustion gas is just opened between the valve face by safety valve shell＜11〉and valve rod＜13 〉, flow to air inlet pipe connecting bend＜9〉through the gas outlet of safety valve casing＜11〉and enter into the gauge tap of gas appliance, meanwhile, push rod＜1〉makes pulse igniter, flame detector, electronic timer, alarm buzzer and power connection.At this moment open the gauge tap of gas appliance, combustion gas promptly enters burner, and by the pulse igniter igniting, lights combustion gas, and gas appliance is with regard to operate as normal.If the combustion gas that has unexpected situation to make to burn in the burner is extinguished, then the flame detector in the safety guard promptly records the signal of fray-out of flame, instruction takes place immediately make electronic timer timework, and pulse igniter is lighted a fire once more.If pulse igniter is lighted combustion gas, igniter promptly quits work, and electronic timer also promptly quits work, and recovers zero-bit.If pulse igniter repeatedly can not be lighted combustion gas, then electronic timer one is to the time of reserving in advance in leaking the gas quantity safe range, promptly sending signal reports to the police alarm buzzer, start magnetic valve＜3〉simultaneously, electromagnetic attraction makes positioning head leave the locating slot of push rod＜1 〉, under compression spring＜7〉effect of valve rod＜13〉assembly, make valve rod close air supply channel, push rod＜1〉ejects automatically, cut off power supply simultaneously, thereby prevented that effectively combustion gas from leaking, avoided poisoning, the generation of accident such as fire or blast.

The utility model is compared with present use similar techniques, can light a fire once more when under the accidentalia effect combustion gas being extinguished and light combustion gas.If igniting can not be lighted combustion gas and just be closed gas source valve automatically once more, alarm buzzer is given the alarm remind the user.Protective device also is provided with the function of predetermined combustion time.A family expenses eyes kitchen range is provided with this sampling device needs only a cover, cost is low, and volume is little, and is safe and reliable, easy to install.

The utility model is same applicable on gas heater, combustion gas heating gas, gas burning roastor and other gas appliance.

Claims

1, a kind of multifunctional fuel apparatus safety guard comprises power supply, pulse igniter, burner, flame detector, electronic timer, timer, alarm buzzer and flame-out safety protective valve, it is characterized in that:

A. flame detector is made up of flame sensor, amplifier and comparator, and it can in time detect burner is burning or flameout state, sends that corresponding signal controlling pulse igniter is lighted a fire once more and electronic timer picks up counting when flame-out recording;

B. flame-out safety valve is by safety valve shell＜11 〉, valve rod＜13〉assembly, magnetic valve＜3〉assembly, valve gap＜4〉assembly and air inlet connecting bend＜9〉form, safety valve shell＜11〉in valve rod＜13 are arranged assembly, it is by valve rod＜13 〉, ring washer＜5 〉, two identical spring(-supported) mount＜6 〉, compression spring＜7〉form, with safety valve shell＜11〉there are sealing ring＜8 contact position 〉,＜12 〉, valve gap＜4〉assembly is by valve gap＜4 〉, push rod＜1〉and adjusting nut＜2 form, adjusting nut＜2〉in push rod＜1 on can regulate push rod＜1 the telescopic displacement size, push rod＜1〉go up be contained in valve gap＜4 in part one locating slot is arranged, valve gap＜4〉assembly and magnetic valve＜3〉assembly fuses, one positioning head is arranged on the magnetic valve termination, can with push rod＜1 on locating slot location, air inlet pipe connecting bend＜9〉an end and safety valve shell＜11 the outlet side join, sealing ring＜10 are equipped with in the junction〉sealing, the other end and gas appliance pipeline are connected to the burner gauge tap.

2, multifunctional fuel apparatus safety guard as claimed in claim 1, its feature can be provided with timing controlled burning time.

3, multifunctional fuel apparatus safety guard as claimed in claim 1, its feature can be installed on gas heater, fuel gas heating apparatus, gas burning roastor and other gas appliances.