CN87203195U

CN87203195U - Gas driven valve of the gas stove

Info

Publication number: CN87203195U
Application number: CN 87203195
Authority: CN
Inventors: 季振业
Original assignee: LIAOHE PETROLEUM SCHOOL
Current assignee: LIAOHE PETROLEUM SCHOOL
Priority date: 1987-04-25
Filing date: 1987-04-25
Publication date: 1988-01-06

Abstract

The utility model discloses a gas driven valve of the gas stove for civilian use and industrial use. The gas driven valve of the gas stove can automatic close the strobe of the stove in the condition of abruptly stopping gas of a supply gas pipe, the main structure is that the gas source of a center chamber is controlled by making use of a spring and a valve plate, and therefore, the purpose of automatic closing the gas source in the state of stopping gas is achieved. The utility model has the advantages of simple device, convenient operation. The explosion accidents are effective avoided, and safety using gas is achieved; the utility model equally has the effect of safety and proof explosion when the gas driven valve is used on an industrial gas heating stove.

Description

Gas driven valve of the gas stove

The utility model belongs to a kind of civilian and industrial body of heater pneumatic safety device.

Now use gas cooking range, can not be under the situation of stopping the supple of gas or steam closed shutter automatically, therefore be prone to accidents, as: coal gas (or rock gas) cooking stove that family uses, meet the situation of stopping the supple of gas or steam,, when pipeline comes gas again, might cause gas from cooking stove, to overflow if the user does not in time close the cooking stove valve, when gas reaches finite concentration, can cause and poison and fire accident; And for example in metallurgical machinery sector, be in the transmission system under the normal operation, in running, can cause pneumatic actuator system to quit work because end air feed, when air feed once more, operator are not owing to notice that the pneumatic actuator system that can be worked is suddenly damaged or be fatal.

For addressing this problem, common way is when supply air line is stopped the supple of gas or steam, and the operator will in time close the body of heater gate rapidly, but this way is very insecure, often because personnel's thought paralysis can be brought the person and economic loss.

The purpose of this utility model provides a kind of body of heater valve pneumatic safety device of improvement type, and it can solve under supply air line is stopped the supple of gas or steam situation suddenly, and automatic-closing valve guarantees to use gas safety, avoids the generation of accidents such as exploding.

The utility model is to realize like this

To scheme is that example is illustrated:

Input adapter (7) is connect mutually with the combustible gas air inlet pipeline, and out splice going splice (9) connects (not drawing among the figure) with the cooking stove gate.

One, the configuration state under the ventilation situation:

During use, at first press hand push button 1, at this moment, diaphragm 8, spool 4 and valve block 5 move down, and make air inlet input duct gas enter central chamber 10 through valve block, after inflammable gas flows into central chamber, gas divides two-way to advance again, and one the tunnel through inclined hole 11, enters chamber 13, when the pressure of diaphragm upper gas during greater than the active force of spring 12, even hand leaves hand button 1; Diaphragm 8, spool 4 and valve block 5 residing positions remain input gas and central chamber 10 connects.Another road inflammable gas supplies to get fire usefulness through delivery outlet to cooking stove.

After the use, close body of heater gate (not drawing among the figure), at this moment, still have gas to exist in central chamber 10 and the chamber 13; Diaphragm, spool, and valve block invariant position (with above-mentioned use time position identical) still keep on-state between air inlet inlet opening and central chamber 10, the delivery outlet, re-use as need, and the body of heater valve of need outwarding winding can be lighted cooking stove again.

Two, the configuration state under the situation of stopping the supple of gas or steam:

When body of heater is in the normal combustion position, as run into pipeline and stop the supple of gas or steam suddenly, at this moment, the inflammable gas in valve body central chamber 10 and the chamber 13, advance body of heater emptying through the pipeline delivery outlet, this moment, the upper pressure of diaphragm 8 disappeared owing to stop the supple of gas or steam flame from horizontal blanking, and spring automatically resets, valve block is under spring 12 effects, automatically the gas-entered passageway of closing center chamber 10, even so just can realize pipeline cooking stove switch patent during air feed again, the inflammable gas in the external pipe can not enter cooking stove.

During only needing in valve inner, the utility model bores an inclined hole 11 between chamber and the chamber, and adorn a spring 12 at the air inlet nose end of valve body 6, just can be by starting under the button situation, make the chamber 13 in the valve body keep certain pressure, realize that valve block 5 keeps normally open, can close the air inlet duct automatically again when stopping the supple of gas or steam, so structure is simple especially.Simultaneously, because the utility model starting point not only be the state automatic-closing valve of stopping the supple of gas or steam, and mode of operation is without any specific (special) requirements.

Concrete structure of the present utility model is provided by following examples and accompanying drawing thereof.

Figure is the sectional drawing according to the pneumatic Safety valve of gas range that the utility model proposes.

This device comprises a metal valve body shell 3, outer casing underpart connects the air inlet duct with screw thread, sidepiece connects the output duct, valve body 6 is arranged in the shell, it is the circular valve that is assembled into three plexiglass materials, the hand button on valve body top, pass valve chamber 13, can contact with the diaphragm 8 of its underpart when pressing, the material of diaphragm is that nitrile rubber is made, and a Cylinder spool 4 is housed in the bottom of diaphragm, contact with central chamber 10 and valve block 5, valve block plays the duct effect of shutoff central chamber, and diaphragm can be given valve block 5 with propagation of pressure again by spool under pressure, force valve block to move down, open the duct of central chamber 10, thereby external gas is entered in the valve body, supported spring 12 is equipped with at the following position of valve block 5, can be under the gas circuit pipeline be stopped the supple of gas or steam situation, automatically reset and promote valve block 5 shutoff central chamber ducts, gas causes accident by valve body when preventing air feed, thereby plays safe effect.

The spool position of this device connects a central chamber, it is a cross duct that is drilled in valve body, one termination output duct, the other end links by inclined hole 11 and chamber 13, and all the other ends and valve block 5 join, when valve block moves down can with air inlet duct UNICOM, between central chamber and chamber, be drilled with a diameter in addition and be 1.5～5 millimeters inclination duct, its objective is the gas of central chamber is introduced in the chamber 13 that for improving the air inlet effect, this inclination angle, duct is best for 30 °～70 °.

In addition,, can also be used for the industrial combustion gas oven, play the safety anti-explosive effect equally as long as this device adds the amplifying device of the single gas control two position three-way valve of one-level.

The utility model is only limited to the external world stops the supple of gas or steam and uses under the situation, and to being in the cooking stove of getting fire as because of the personal factor stove fire extinguishes, the utility model does not have safety effect just the cooking stove gate is not closed so again.

Claims

1, the pneumatic safety valve of a kind of civilian and industrial body of heater, form by shell 3, spool 4, valve block 5, valve body 6, diaphragm 8, hand button 1, valve chamber 13, outer casing underpart connects the air inlet duct, and sidepiece connects the output duct, and a valve body is arranged in the shell, and it is the circular valve that is combined into three blocks of plexiglass, button 1 is on the other hand arranged at valve body top, the button bottom is a diaphragm, and a cylindrical body spool is equipped with in the diaphragm bottom, and spool contacts with valve block, supported spring is equipped with in the bottom of valve block, it is characterized in that:

Have in the described valve body 6 of A a central chamber 10 and with air inlet duct and cooking stove UNICOM.

Being drilled with a diameter between described chamber 13 of B and the central chamber is that 1.5～5 millimeters inclination angles are the inclination duct between 30 °～70 °.

One spring 12 is arranged at the described chamber of C 13 bottoms.

2, pneumatic safety valve according to claim 1 is characterized in that inclined hole 11 and chamber 13 UNICOMs.