KR20120091599A - Gas torch with ignition device - Google Patents

Abstract

PURPOSE: A gas torch with an ignition device is provided to easily ignite by pressing a button after opening a main fuel valve. CONSTITUTION: A gas torch with an ignition device comprises an ignition nozzle assembly(35), a fuel gas control valve(26), an oxygen gas control valve(27), and a trigger unit(20). The ignition nozzle assembly is installed in the side surface of a main nozzle(40) and generates flame for ignition. The fuel gas control valve controls fuel gas supplied to the ignition nozzle assembly. The oxygen gas control valve controls oxygen gas supplied to the ignition nozzle assembly. In the trigger unit, the fuel gas control valve and the oxygen gas control valve are opened by pressing a button.

Description

Gastort with ignition {GAS TORCH with Ignition device}

The present invention relates to a gas torch with an ignition device, and more particularly to a gas torch having an ignition device that can safely ignite the fuel gas of the main nozzle.

Gasstorch is a device used to burn gas to make a flame and to heat an object with the flame or to cut or weld a material with a heating flame.

Gas torches generate sparks by mixing oxygen with acetylene or LPG gas, which is a fuel gas, in the cutting or welding of a gas plate, and such a torch generally includes an inlet pipe through which oxygen and fuel gas are introduced, and such gas. It consists of a valve for controlling the inflow of, the main nozzle to which these gases are injected, and an ignition device for igniting the gas of the main nozzle, etc., the tip of the nozzle is attached to the tip suitable for the purpose.

There was Utility Model Registration No. 249468, “Gas Torch with Automatic Ignition Device,” filed and filed by the applicant, which opens the cock of the first fuel gas pipe to supply fuel gas. Since the gas pipe is supplied at the same time, there is a problem that excessive spark is generated at the nozzle tip when the ignition button is operated. In other words, when the cock is opened, the reactor is supplied to the ignition nozzle through the mixed gas pipe, and when the ignition button is operated, sparks are generated in the fuel gas supplied to the ignition nozzle, but the fuel gas is already supplied to the main nozzle tip. Therefore, a large amount of main nozzle gas is ignited by the spark generated from the ignition nozzle, and a large flame may be generated. Therefore, there is a risk that the worker may be injured in a burn accident.

In addition, applicant No. 20-2002-0008580, filed on March 22, 2002, Utility Model Registration No. 280189, "Gastort with automatic ignition device," refers to a nozzle tip forming a combustion main flame, and a fuel gas for ignition. It consists of supply device, ignition trigger means, fuel gas pipe, fuel gas control valve, ignition fuel gas pipe, fuel gas control valve, etc., and ignition fuel gas is supplied to the ignition device regardless of opening and closing of the main fuel gas control valve. In order to prevent excessive spark generation at the nozzle tip during ignition.

However, since the ignition fuel gas branches in front of the control valve, the ignition fuel gas is supplied to the ignition device regardless of opening and closing of the control valve, and the spark gas generated when the ignition button is pressed causes combustion of fuel gas and oxygen in the air. Ignition sparks. So there is no risk of operator getting burned. However, since the hole size of the ignition nozzle to make the auxiliary spark for ignition must be made minute, foreign substances or dust contained in the reactor fluid flowing into the ignition nozzle may block the nozzle, and the surrounding air at the time when it is not used. As the dust is sucked into the nozzle, dust or foreign substances block the nozzle holes, causing the ignition failure, and the ignition failure occurs because the ratio of the air sucked from the nozzle body and the outside of the nozzle is not constant. There was a problem.

In order to solve this problem, the present inventor applied for an improved "ignition device with gas stove" on February 26, 2009 and registered on March 11, 2010. As shown in FIG. 1, it has a body A formed therein with a mixed gas passage 11 through which the mixed gas for combustion passes, and a nozzle 12 coupled to the body to inject the mixed gas, and burns. A tip 13 for combusting the gas mixture, an ignition device coupled to an end of the nozzle 12 of the body A, a mixed gas passage 11, an oxygen inlet 1, and a fuel gas inlet of the body ( 2) It has a pipe section consisting of pipes connecting and control valves for controlling the flow of each pipe. The nozzle 12 of the body is shown integrally in the drawing, but for convenience of manufacture, the tip 13 is separately attached to the end, and the mixed gas flowing into the mixed gas passage 11 of the body is connected to the tip (through the nozzle 12). 13) is injected into the atmosphere. Several small holes are formed in the nozzle and the tip, with an oxygen injection hole in the center. The ignition device is formed integrally attached next to the nozzle of the body. A metal nozzle 16 formed in the body A adjacent to the end of the nozzle 12, an ignition nozzle 17 attached to the inside of the metal nozzle and applying an ignition spark, and an ignition nozzle installed in the mixed gas passage of the ignition nozzle. An ignition valve 40 installed between the ignition nozzle and the mixed gas passage of the body to open and close the mixed gas flow so that the spark electrode 15 and the mixed gas of the mixed gas passage of the body pass through the ignition nozzle; It is provided with a trigger means (B) for simultaneously applying a high voltage electricity to the spark electrode while opening. In the center of the metal nozzle is a mixed gas injection hole. The trigger means B includes a piezoelectric element 32 connected to the spark electrode to generate a high voltage, and an ignition button 31 to apply a mechanical force to the piezoelectric element.

In this "Gastort with ignition device", the ignition gas is taken out of the mixed gas passage of the nozzle body and sparks are generated in the ignition nozzle by the spark of the trigger electrode. . Since the oxygen pressure is high and the fuel gas pressure is low, the inexperienced person does not know how to open the fuel control valve and the oxygen control valve.

Therefore, even for beginners, there was a demand for a gas torch to reliably generate sparks for ignition regardless of the fuel mixing ratio of the main nozzle.

The present invention is to solve the problem of the ignition device of the prior art that caused the ignition failure of the ignition device and the ignition failure of the main fuel gas is not well ignited in the conventional gas torch.

The present invention is to provide a gas torch attached to the ignition device to produce a ignition spark by producing a mixed gas for ignition so that the ignition failure due to inexperienced operation of the gas control valve in the gas torch.

The present invention is to provide a gas torch having a safe fuel valve that can reduce the risk of leakage of fuel gas, so that even a beginner does not cause poor ignition.

The gas torch of the present invention is a gas torch having an ignition device for igniting fuel gas injected from the main nozzle, the ignition device being provided on the side of the main nozzle and generating an ignition spark, and an ignition nozzle assembly. A fuel gas control valve for controlling the supply of fuel gas to the fuel gas, an oxygen gas control valve for controlling the supply of oxygen gas to the ignition nozzle assembly, a piezoelectric element that generates a spark by applying a pulsed high voltage to the ignition nozzle assembly, and presses the pushbutton. The fuel gas control valve and the oxygen gas control valve are opened, the high pressure electricity is generated by the trigger means to generate a spark in the ignition nozzle assembly, and when the pressing operation is finished, the fuel gas control valve and the oxygen gas control valve are closed to provide fuel gas. And a trigger means configured to stop the supply of oxygen gas.

In addition, the gas torch of the present invention includes a main fuel valve for controlling a gas supply of a fuel gas supply line for supplying fuel gas to a main nozzle and a fuel gas control valve from a fuel gas supply line, and a main fuel valve for supplying the main nozzle from an oxygen supply line. It includes an oxygen supply valve for supplying oxygen to the fuel gas.

In the present invention, the ignition nozzle assembly includes an ignition nozzle having an oxygen through hole formed on a lower surface of a cylinder having an opening serving as a gas outlet, a plurality of fuel through holes formed on a side of the cylinder, and accommodating an ignition nozzle in an internal space, and ignition. An insulator cap that forms a metal body having a circular hole at a portion corresponding to the gas outlet of the nozzle, and supports the upper side of the fuel through holes of the ignition nozzle to be fixed in the metal body and to contain a gas chamber therein to accommodate fuel gas. And an insulator tube for passing oxygen gas into the ignition nozzle while supporting the lower surface of the ignition nozzle, and an electric wire to which a high voltage pulse of the trigger means connected to the ignition nozzle is applied, and when oxygen flows from the oxygen through hole to the opening. It is mixed with fuel gas from the fuel through hole of the nozzle and injected into the gas outlet of the ignition nozzle. When applied to a high-voltage pulse it is such that a spark is generated between the edge of the gas outlet nozzle of the ignition spark of the metal body in a mixed gas injected from the gas outlet.

The trigger means of the present invention is a piezoelectric element for generating a high voltage pulse on the conductive wire connected to the ignition nozzle, the trigger means to move the valve stem of the oxygen gas control valve and fuel gas control valve to open the valve and apply a mechanical force to the piezoelectric element It includes an operator for triggering, and a button for moving the operator to an operating position, the pressing force of the button and the timing of opening and closing the oxygen gas control valve and the fuel gas control valve and timing of generating high voltage pulses.

The gas stove of the present invention is coupled to the valve rod for rotating the valve rod, the main fuel valve for fuel supply, the valve case formed with the gas passage and the valve seat, the valve rod for opening and closing the fluid flow of the valve seat, The valve inner handle is formed with a hill and a valley, the valve outer handle formed with a valley and a hill that are engaged with the hill and the valley of the valve inner handle, and the valve outer handle is rotatable at the outer circumference of the valve inner handle. And a position fixing means for supporting and fixing the peaks and valleys of the valve outer handle to the position where the peaks and valleys of the valve inner handle engage with the valleys and the peaks of the valve inner handle.

When the gas torch of the present invention is used, ignition is assured to the ignition gas having the optimum gas mixing ratio in the ignition nozzle.

Even if you have no experience using gasstore, you can open the main fuel valve and ignite it.

This eliminates the inconvenience of having to press the ignition button several times.

In addition, since the mixed gas for combustion is supplied to the ignition nozzle only when the ignition button is pressed, there is no leakage of gas, and the spark electrode is insulated by the ceramic nozzle, thereby solving the problem of spark failure due to a short circuit.

The gas stove of the present invention can prevent safety accidents by using a gas regulating valve with improved safety. When the peak and valley of the valve outer handle are fixed to the position of the valley and the valley of the valve inner handle, turning the valve outer handle enables the valve to be operated so that the operation is very easy.

1 is a schematic view of some cross-sections and pipelines for ease of understanding known gasstoche.
2 is a schematic pipeline diagram for explaining the gas stove of the present invention.
3 is a schematic view showing an example of the gripper side configuration of the present invention;
4 is a cross-sectional view illustrating an example of a main nozzle and an ignition nozzle.
5 is a cross-sectional view of the main fuel valve of the present invention.

An embodiment of the present invention will be described with reference to the drawings.

As shown in Fig. 2, the gas torch of the present invention is a gas torch having an ignition device for igniting fuel gas injected from the main nozzle 40, the ignition device being installed on the side of the main nozzle and igniting a spark for ignition. The ignition nozzle assembly 35 to be generated, a fuel gas control valve 26 for controlling fuel gas supply to the ignition nozzle assembly, an oxygen gas control valve 27 for controlling oxygen gas supply to the ignition nozzle assembly, and an ignition nozzle When the piezoelectric element 24 and the button 21 are pressed to apply the pulse high voltage to the assembly, the fuel gas control valve and the oxygen gas control valve are opened, and the trigger means generates high voltage electricity to generate sparks in the ignition nozzle assembly. And the end of the pressing operation, the fuel gas control valve and the oxygen gas control valve are closed so that the supply of fuel gas and oxygen gas is stopped. It has a means 20.

The main fuel valve 18 for controlling the fuel gas supply to the main nozzle 40 and the fuel gas control valve 26 by connecting the connector 17 to the fuel gas supply source, and the oxygen supply line connector 16 connected to the oxygen supply source. It includes an oxygen supply valve 15 for supplying oxygen to the mixed gas supplied to the main nozzle through.

In the ignition nozzle assembly 35 of the present invention, as shown in Fig. 3, an oxygen through hole 51 is formed on the lower surface of the cylinder having the gas outlet 47, and a plurality of fuel through holes 50 are provided on the side of the cylinder. ), An ignition nozzle 49 formed therein, a metal body 45 having a circular hole 46 formed in a portion corresponding to the gas outlet of the ignition nozzle and accommodating the ignition nozzle in the inner space, and the fuel through holes of the ignition nozzle. An insulator cap 48 that supports the upper part and is fixed in the metal body 45 and forms a gas chamber therein to accommodate fuel gas, and an insulator tube that passes oxygen gas into the ignition nozzle while supporting the lower surface of the ignition nozzle. 52 and an electric wire 28 to which a high voltage pulse of the trigger means 20 connected to the ignition nozzle is applied, and when oxygen flows from the oxygen through hole 51 to the gas outlet, it exits from the fuel through hole of the ignition nozzle. Of ignition nozzle mixed with fuel gas Is injected to the exit, if the high voltage pulse applied to the insulating nozzle is ignited flame generated between the gas outlet and the edge of the metal body 45 of the ignition nozzle is ignited in the mixed gas injected from the gas outlet.

The trigger means 20 of the present invention, as shown in Figure 4, by moving the valve stems 26-1, 27-1 of the oxygen gas control valve 27 and the fuel gas control valve 26 to open and And an operator 23 for triggering by applying a mechanical force to the piezoelectric element 24, and a button 21 for moving the operator to an operating position.

The operator 23 is rotatably coupled to the frame 30 by the fixing pin 22, and when the button 21 is pressed, the connector 25 for connecting the control valve stems is pulled to open the valves. After ignition, the button is released and the valve is returned to its original position by the force of the springs 26-2 and 27-2. It is manufactured by adjusting the distance between the fixing pin, the button and the operator to suit the pressing force of the button, the opening time of the oxygen gas control valve and the fuel gas control valve, and the timing of generating the high voltage pulse.

In the method of operation, the torch of the present invention is first connected to the fuel gas supply source through the connector 17, and the oxygen supply source is connected through the connector 16, and then the main fuel valve 18 is properly opened. Reaches the nozzle tip and presses the button 20 to open the fuel gas control valve 26 and the oxygen gas control valve 27 and reach the ignition nozzle as set in advance so that a certain amount is mixed with each other. As the high voltage is generated in the piezoelectric element 24 and spark is generated between the ignition nozzle and the metal body, the ignition nozzle is ignited and thus the flame is delivered to the mail nozzle to be ignited. Ignition is ensured because the mixed gas for ignition is ideally blended with fuel gas and oxygen gas.

The male fuel valve 18 of the present invention uses the publication No. 20-2011-0000256 "Gas Control Valve" disclosed as the applicant of the present application. This is to reduce the malfunction of the gas regulating valve of the conventional torch and to make it easier to operate. As shown in Fig. 5, it is coupled to the valve case, the valve rod, and the valve rod to rotate the valve rod, and the acid and valleys on the outer circumferential portion thereof. The formed valve inner handle, the valve outer handle formed in the inner portion of the valley and the valley of the stem and the valley of the valve inner handle, and the valve outer handle is rotatably supported at the outer circumference of the valve inner handle, It includes a position fixing means for fixing the peak and the valley of the outer handle to the position of the valve and the handle of the inner handle of the valve, or fixed to a position not engaged.

The operation of this valve is as follows, where reference numerals used herein relate only to FIG. When the valve outer handle 20 is in the position as shown in FIG. 5, the valve rod 13 can not be turned because the valve outer handle is only turning back and cannot turn the valve inner handle so that the locked valve does not open. Will not. In the state shown in Figure 5 is a state in which the valve outer handle is pushed, even if the external force acts on the handle does not push further. When the operator tries to open and close the valve, the valve outer handle is moved while holding the valve outer handle and pulling in the same direction as the valve rod to move the ball 33 in the second circular groove 24 into the first circular groove 23. Is moved. Thus, the peaks and valleys of the valve outer handle are engaged with the peaks and valleys of the valve inner handle. When the valve outer handle is engaged, the valve inner handle also rotates, and the valve rod rotates to open or close the valve. When you open the valve, the gas flows so you can work with the torch. When you want to turn off the flame of the torch to complete the work or to rest, turn the valve outer handle to completely lock the gas, then push the valve outer handle to its original position (33) the second circular groove (24) ) To the position of. When the valve outer handle is in its original position, that is, the position where the ball 33 is engaged with the second circular groove 24, it is in the original position unless the valve outer handle is intentionally pulled out. Even if the operator accidentally forgets to push the valve outer handle back to its original position, the valve outer handle is pushed to its original position when the torch hits another object or a person kicks and an external force is applied. The handle is in the idle state only. Therefore, it can be said to be safer than the conventional technology. This valve prevents the leakage of gas. Detailed descriptions of these valves are cited in the publications and are not described here any further.

What has been described above is an example of the present invention and can be designed various embodiments based on the basic idea.

11: oxygen gas pipeline for cutting 12: mixed gas pipeline
13: ignition oxygen gas line 14: cutting oxygen supply valve
14-1, 15-1: Valve handle 14-2, 15-2: Valve stem
15: oxygen supply valve, 16: oxygen supply line connection
17: fuel gas supply line connection 18: main fuel valve
20: trigger means (ignition control unit) 21: button
22; Pushpin 23: operator
24: piezoelectric element 25: control valve stem connector
26: fuel gas control valve 27: oxygen gas control valve
28: ignition lead 29: ignition fuel gas line
30: frame 35: ignition nozzle assembly
40: nozzle body 41: nozzle tip
42: cutting oxygen passage 43: mixed gas passage
44: nozzle assembly screw 45: metal body
46: ignition flame exit round hole 47: gas outlet
48: insulator cap 49: ignition nozzle
50: fuel through hole 51: oxygen through hole
52: insulator tube 53: sealing screw
54: Milpe ring

Claims (5)

In a gas stove having an ignition device for igniting fuel gas injected from a main nozzle, the ignition device includes:
An ignition nozzle assembly installed on the side of the main nozzle and generating an ignition flame;
A fuel gas control valve for controlling fuel gas supply to the ignition nozzle assembly;
An oxygen gas control valve for controlling oxygen gas supply to the ignition nozzle assembly;
Pressing the button opens the fuel gas control valve and the oxygen gas control valve, generates a high voltage electricity from the piezoelectric element, generates a spark in the ignition nozzle assembly, and when the pressing operation is finished, the fuel gas control valve and the oxygen gas control valve are closed. A gas stove with an ignition device, characterized in that it comprises a trigger means configured to stop the supply of fuel gas and oxygen gas.
The method according to claim 1,
A main fuel valve for controlling the fuel gas supply from the fuel gas supply source to the main nozzle and the fuel gas control valve;
A gas torch with an ignition device, characterized in that it comprises an oxygen supply valve for supplying oxygen to the fuel gas supplied from the oxygen supply source to the main nozzle.
The method of claim 1, wherein the ignition nozzle assembly,
An ignition nozzle having an oxygen through hole formed in a lower surface of the cylinder having a gas outlet at an upper side thereof, and a plurality of fuel through holes formed at a side of the cylinder;
A metal cap accommodating the ignition nozzle in the inner space and having a circular hole formed in a portion corresponding to the gas outlet of the ignition nozzle;
An insulator cap which supports an upper portion of the fuel through-holes of the ignition nozzle to be fixed in the metal body and forms a gas chamber therein to receive fuel gas;
An insulator tube for passing oxygen gas into the ignition nozzle while supporting the lower surface of the ignition nozzle;
A wire to which a high voltage pulse of a piezoelectric element connected to the ignition nozzle is applied;
When oxygen flows from the oxygen through hole to the gas outlet, it is mixed with fuel gas from the fuel through hole of the ignition nozzle and injected into the gas outlet of the ignition nozzle. When a high voltage pulse is applied to the insulated ignition nozzle, the edge of the gas outlet of the ignition nozzle and the A ignition device with a ignition device, characterized in that a spark is generated between the metal bodies to ignite the mixed gas injected from the gas outlet. The method according to any one of claims 1 to 3,
The trigger means includes an operator to open and move the valve stem of the oxygen gas control valve and the fuel gas control valve by applying a mechanical force to the piezoelectric element, and a button for moving the operator to the operating position, characterized in that Gas torch with ignition. The method of claim 2 or 3, wherein the main fuel valve,
A valve case in which a gas passage and a valve seat are formed,
A valve rod for opening and closing a fluid flow of the valve seat,
A valve inner handle coupled to the valve rod to rotate the valve rod, and having an acid and a valley formed at an outer circumference thereof;
The valve outer handle having a valley and a hill formed in a portion of the inner side of the valve
Position fixing means for supporting the valve outer handle to be rotatable at the outer circumference of the valve inner handle, and fixed to the position where the peak and the valley of the valve outer handle is engaged with the valley and the peak of the valve inner handle or not. A gas torch with an ignition device, characterized in that it comprises a gas regulating valve.

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