KR20210114121A - Portable gas combustion apparatus - Google Patents

Abstract

The purpose of the present invention is to provide a portable gas combustion device capable of keeping a safe operating temperature by blocking the transfer of heat generated during combustion to a gas container. The portable gas combustion device comprises: a hollow intake having multiple air inlets through which external air is introduced; a venturi tube provided over the intake, mixing a fuel gas injected from a nozzle of a valve casing with the air introduced through the air inlet to disperse and diffuse the mixed gas through a pressure change, and having a chamber on an upper portion which gradually increases in width in an upward direction; a heat dissipation bracket mounted on a lower end of the venturi tube and provided with multiple heat dissipation holes; multiple supports supporting the heat dissipation bracket at a predetermined height by standing in at least two directions on an upper edge of the valve casing so that the venturi tube is positioned over the intake at a predetermined distance; and a flame-forming plate mounted on the venturi tube and dispersing and distributing the mixed gas injected through the chamber into multiple fine holes.

Description

Portable Gas Combustion Apparatus {PORTABLE GAS COMBUSTION APPARATUS}

The present invention relates to a portable gas combustion appliance that can be used as both a cooking and cooking burner and a heating stove. It relates to a portable gas combustion appliance that can significantly improve combustion efficiency and heat generation performance by stably rising, and can maintain a safe operating temperature by blocking the transfer of heat generated during combustion to a gas container.

Today, as the number of people who enjoy outdoor activities such as mountain climbing, camping, and fishing increases, the demand for portable gas-fired devices used for outdoor cooking or heating is increasing.

Such a portable gas combustion device can be ignited without preheating by using liquefied butane gas filled in a disposable bomb in the form of a metal can as a fuel, and also a so-called gas that can be used for both cooking and heating according to the user's choice. The stove is the mainstream.

For example, Patent Document 1 discloses a 'burner having a fuel control unit'. That is, as shown in FIGS. 1 and 2 , the conventional portable gas combustion apparatus has an adapter 100 for connecting the fuel supply tank 101 and the fuel inlet 110 of the adapter 100. It is disposed between the combustion unit 200 in which combustion occurs while fuel is injected through the flow path, and the adapter 100 and the combustion unit 200 so that the fuel in the fuel supply tank 101 is supplied to the combustion unit 200 . a connection housing 300 to make it possible, and an inflow fuel control unit 400 provided on one side of the connection housing 300 to control the amount of fuel flowing into the fuel inlet 110 of the adapter 100; It is configured to include a fuel supply control unit 500 that adjusts the amount of fuel supplied to the combustion unit 200 .

However, since this is a simple structure that generates heat with a flame generated when air and gas are mixed and combusted in the combustion unit 200, the flame does not bloom evenly, so there is a limit that combustion efficiency and heat generation performance are considerably lowered.

In addition, there is a problem in that the heat of the combustion unit 200 is easily transferred to the fuel supply cylinder 101 , so that the fuel supply cylinder 101 cannot withstand the internal pressure due to overheating and a safety accident such as a physical explosion occurs.

In order to solve this problem, Patent Document 2, which was designed and developed by the present inventors and applied for earlier, discloses a structure for minimizing heat conduction to a gas container in the combustion process.

However, this is a structure that reduces the transfer of heat from the venturi tube to the valve casing by interposing only an insulator with low thermal conductivity between the venturi tube and the valve casing. There is a high risk of safety accidents such as overheating.

The background art or prior art described herein is information possessed by the inventor or acquired in the process of deriving the present invention, and is only intended to help understand the technical meaning of the present invention, and prior to the filing of the present invention, the technology to which this invention belongs It should be noted that it does not mean a technique widely known in the field, and the reference numerals in the prior art are independent of the reference numerals in the present invention.

KR10-1549493 B1 (2015.08.27) KR10-2018-0109281 A (2018.10.08) KR20-0268993 Y1 (2002.03.08)

Accordingly, the present inventor is an idea to solve the technical limitations and problems of the existing portable gas combustion apparatus while comprehensively considering the above-mentioned matters, by uniformly dispersing and diffusing the air and gas mixture and selecting By allowing the flame to rise stably, the combustion efficiency and heat generation performance (radiant temperature) can be greatly improved, and the heat generated during combustion can be blocked from being transferred to the gas container to maintain a safe operating temperature. As a result of continuous research to develop a portable gas combustion device of a new structure that can be used as both a cooking and cooking burner and a heating stove, depending on the choice and convenience of use and improvement of efficiency. Thus, the present invention was created.

Accordingly, it is an object and technical problem to be solved by the present invention to provide a portable gas combustion apparatus capable of blocking the transfer of heat generated during combustion of gas to a gas container.

In addition, another technical problem and object to be solved by the present invention is to provide a portable gas combustion appliance that can be used as both a cooking burner and a heating stove.

Here, the technical problems and objects to be solved by the present invention are not limited to the technical problems and objects mentioned above, and other technical problems and objects not mentioned will be clearly understood by those skilled in the art from the following description.

Specific means according to an aspect of the present invention to achieve the technical object as described above, as well as to solve the problems or technical problems of the prior art, an adapter for connecting to the nozzle of the gas container is formed at the bottom a valve casing having a gas inlet communicating with the adapter and a gas passage communicating with the gas inlet therein, a valve seat formed in the gas passage, and a gas outlet communicating with the gas passage formed at an upper portion thereof; a nozzle built in the upper part of the valve casing to eject fuel gas discharged through the gas outlet; a hollow intake mounted on the upper part of the valve casing and formed with a plurality of air inlets around which external air is introduced; A venturi tube provided on the upper side of the intake, mixing the fuel gas emitted from the nozzle with the air flowing in through the air inlet, and dispersing and diffusing it with a change in pressure, and having a chamber at the top that gradually increases in width toward the top. ; a heat dissipation bracket mounted on the lower end of the venturi tube and having a plurality of heat dissipation holes; A plurality of supports for supporting and supporting the heat dissipation bracket at a predetermined height by standing in at least two directions of the upper edge of the valve casing so that the venturi tube is positioned above the intake at a predetermined distance; A valve head is inserted into the gas flow path of the valve casing, and the gap between the valve seat and the valve head is adjusted while moving in the horizontal direction according to the rotation to adjust the amount of gas ejected from the gas container to the nozzle within a certain range. spindle to; It is mounted on the upper portion of the venturi tube and proposes a portable gas combustion apparatus, characterized in that it employs including a flame forming plate for dispersing and dispersing the mixed gas ejected through the chamber to a plurality of fine holes.

As a result, the present invention effectively blocks the heat of the venturi pipe from being transferred to the valve casing, thereby improving the safety of preventing the gas container from physically exploding due to overheating.

In addition, a preferred embodiment of the present invention includes an air conditioning ring that is fitted around the outer periphery of the intake and coupled in a screw fastening method, and controls the amount of air flowing into the venturi tube by opening and closing the air inlet according to the rotational direction. It may be configured to further include.

In addition, in a preferred embodiment of the present invention, a flange is formed protruding around the upper outer periphery of the venturi tube, a first male screw is formed on the flange, and a lower central portion is inserted for mounting on the upper portion of the venturi tube. A hole is formed, a female screw for screw coupling with the first male screw of the flange is formed inside the lower part of the insertion hole, and it further comprises a grate in which a plurality of support parts for supporting a heating object are coupled to the periphery of the upper part. It can be conveniently used for cooking and cooking according to the needs or selection of the user.

In addition, a preferred embodiment of the present invention is erected in at least two directions among the edges of the heat dissipation bracket, and further comprises a plurality of mounting brackets for fixing the flame spreader at the upper end and supporting and supporting it at a predetermined height. I can easily use it for heating according to my choice.

According to the technical idea and embodiment (embodiment) of the present invention, which is based on a unique solution to solve the above technical problem, the venturi tube is positioned at a certain distance above the intake by the heat dissipation bracket and the support. Because of its structure, it is possible to effectively block and minimize the transfer of heat generated during combustion or radiant heat of the venturi tube to the valve casing and gas container.

Therefore, even if it is used for a long time for cooking or heating, stable combustion is achieved without malfunction or damage to the valve casing, and it is possible to secure the safety of use and improve convenience by maintaining a safe operating temperature.

Moreover, the amount of external air flowing into the venturi tube through the air inlet can be adjusted by rotating the air control ring while controlling and maintaining the gas ejection amount and pressure of the gas container within a certain range, and the upper part of the venturi tube The grate for burner or the flame spreader for stove can be attached and detached, so it can be used for cooking, cooking, or heating, depending on the user's need or choice.

Therefore, since it can be used and digested at the same time by combining and juxtaposing the functions of two items in one product, it maximizes convenience, functionality and usability, and increases space efficiency by minimizing the volume during movement and storage. , it is possible to promote the benefits of use, such as improving the economic feasibility.

Here, the effects of the present invention are not limited to the above-mentioned effects, and other effects not mentioned will be clearly understood by those skilled in the art from the description of the claims.

1 is a perspective view showing an example of a portable gas combustion device according to the prior art.
FIG. 2 is an enlarged cross-sectional view showing a local part of FIG. 1 .
3 is a perspective view showing a portable gas combustion device according to a first embodiment of the present invention.
4 is a cross-sectional view showing a portable gas combustion device according to the first embodiment of the present invention.
5 is an exploded perspective view of a portable gas combustion device according to a first embodiment of the present invention.
6 is an exploded perspective view illustrating a state in which a portable gas combustion apparatus according to the first embodiment of the present invention is used as a burner.
7 is a combined perspective view illustrating a state in which a portable gas combustion apparatus according to a first embodiment of the present invention is used as a burner.
8 is an exploded perspective view of a portable gas combustion device according to a second embodiment of the present invention.
9 is a perspective view showing the use of a portable gas combustion apparatus as a stove according to a second embodiment of the present invention.

Hereinafter, an embodiment according to the present invention will be described in more detail with reference to the accompanying drawings.

Prior to this, the following terms are defined in consideration of the functions in the present invention, and it is specified that they should be interpreted as concepts consistent with the technical spirit of the present invention and meanings commonly or commonly recognized in the art.

In addition, if it is determined that a detailed description of a well-known function or configuration related to the present invention may obscure the gist of the present invention, the detailed description thereof will be omitted.

The accompanying drawings show that parts are exaggerated or simplified for the sake of convenience and clarity of explanation and understanding of the configuration and operation of the technology, and it is revealed that each component does not exactly correspond to the actual size and shape.

In addition, in this specification and/or the term "and/or" is meant to include a combination of a plurality of related described items or any of a plurality of related described items, and when a part includes a certain component, it is a particularly opposite description This does not mean that other components are excluded, but other components can be further included.

That is, it means that there is a feature, number, step, operation, component, part, or combination thereof described in this specification, and one or more other features or number, step operation component, part, or a combination thereof It is to be understood that this does not exclude the possibility of the existence or addition of those.

In addition, the meaning of the terms "unit" and "unit" means a module form that performs at least one function or a unit or role for processing a certain operation of a system, which is a combination of hardware or software or hardware and software. It may be implemented as a device or assembly capable of performing an independent operation or a means through such a method.

In addition, terms such as upper, lower, upper, lower, or upper, lower, upper, lower, front and rear, left and right are used for convenience to distinguish relative positions of each component. For example, the upper side in the drawing may be named or referred to as the upper side and the lower side as the lower side, the longitudinal direction may be named or referred to as the front-back direction, and the width direction may be named or referred to as the left/right direction.

Also, terms such as first, second, etc. may be used to describe various components. That is, terms such as 1st, 2nd, etc. may be used only for the purpose of distinguishing one component from another component. For example, a first component may be referred to as a second component without departing from the scope of the present invention, and the second component may also be referred to as a first component.

3 to 5, the portable gas combustion device 1 according to the first embodiment of the present invention is largely a valve casing 10, a nozzle 20, an intake 25, an air conditioning ring 27. , a venturi tube 30 , a heat dissipation bracket 40 , a support 45 , a spindle 50 , and a flame forming plate 60 .

The valve casing 10 controls the amount of fuel gas flowing in from the gas container C to supply it to the nozzle 20, and an adapter 11 for connecting to the nozzle at the upper part of the gas container C is formed at the lower portion. A gas inlet 12 communicating with the adapter 11 to receive gas fuel from the gas container C, and a gas passage 13 communicating with the gas inlet 12 are formed inside, and the gas passage A valve seat 14 is formed inside the (13).

In addition, a gas outlet 15 for supplying gas to the nozzle 20 while communicating with the gas flow path 13 is formed on the upper portion of the valve casing 10 .

That is, the valve casing 10 is coupled to the nozzle of the upper gas container (C) by the adapter (11).

The nozzle 20 is mounted on the upper part of the valve casing 10 to eject the gas discharged through the gas outlet 15 .

The intake 25 blocks and minimizes the transfer of heat from the flame forming plate 60 and the venturi tube 30 to the gas container C through the valve casing 10 , and fuel ejected from the nozzle 20 . It has a hollow tube shape having a predetermined length to mix gas and external air and is mounted on the upper part of the valve casing 10 as if surrounding the nozzle 20 .

In addition, a plurality of air inlets 26 , which are passages through which external air flows into the inside of the venturi tube 30 , are formed around the intake 25 .

In addition, on the outer surface around the air inlet 26 of the intake 25, a male thread (unsigned) for screwing with the air conditioning ring 27 is formed.

Here, the intake 25 may be fixed to the valve casing 10 by screw coupling.

On the other hand, an air conditioning ring 27 for controlling the amount of air flowing into the venturi tube 30 is screwed to the outer circumference of the intake 25 .

That is, the air conditioning ring 27 has a female thread (unsigned) corresponding to the male thread of the intake 25 on the inner circumferential surface of the air conditioning ring 27, so a screw fastening method on the outside of the intake 25 and adjusts the opening and closing area of the air inlet 26 while ascending and descending according to the direction of rotation.

Here, the outer circumferential surface of the air conditioning ring 27 may be formed in a circular shape, but may be formed in various shapes such as a square, a semi-circle, an oval, and the like.

In addition, the outer circumferential surface of the air conditioning ring 27 may be horizontally or inclined so as not to slip when gripped with a finger, a sawtooth shape or a jagged or rough mark.

The venturi tube 30 is spaced apart from the upper side of the intake 25 at a predetermined distance in order to cause a pressure change in the fuel gas ejected from the nozzle 20 .

That is, the venturi tube 30 mixes the fuel gas ejected from the nozzle 20 and the air introduced through the air inlet 26 , and disperses and diffuses it through a pressure change.

And the upper portion of the venturi tube 30 is formed with a chamber 31, which gradually widens in the upward direction.

That is, the chamber 31 of the venturi tube 30 is formed in a funnel shape with an open upper surface.

And a flange 32 for mounting the grate 70 is protruded around the upper outer periphery of the venturi tube 30, and the perimeter of the flange 32 is fixed to the grate 70 by a screw fastening method. A first male screw 33 is formed for

In addition, a third male screw 37 for screw coupling with the heat dissipation bracket 40 is formed around the outer periphery of the lower end of the venturi tube 30 .

Here, it is preferable to protrude a plurality of heat dissipation fins on the outer circumferential surface of the venturi tube 30 to draw heat from the inside and quickly dissipate and release it into the air.

The heat dissipation bracket 40 is mounted on the lower end of the venturi tube 30 .

And a plurality of heat dissipation holes 41 are formed inside the heat dissipation bracket 40 to dissipate the heat generated in the venturi tube 30 and also to fit and fix the upper portion of the support 45 .

That is, a screw hole 42 for screwing with the third male screw 37 at the lower end of the venturi tube 30 is formed in the inner center of the heat dissipation bracket 40 .

Here, the upper end of the support 45 may be fixed with any one of the heat dissipation holes 41 of the heat dissipation bracket 40 by bolting or screw coupling, and the lower end may be fixed with the valve casing 10 and screw coupling method. have.

The support 45 is erected in at least two directions among the edges of the upper portion of the valve casing 10 to support the venturi tube 30 and the heat dissipation bracket 40 above the intake 25 .

That is, the support 45 supports and supports the heat dissipation bracket 40 so that the venturi tube 30 is positioned at a predetermined distance above the intake 25 .

Therefore, since the valve casing 10 and the venturi tube 30 are installed with a predetermined interval and space on the intake 25 by the heat dissipation bracket 40 and the support 45, the heat of the flame forming plate 60 in the combustion process It is possible to effectively block and minimize the transfer to the gas container (C) through the valve casing (10) and the valve casing (10).

Here, it is preferable that the vertical length (height) of the support 45 is longer than the vertical length (height) of the intake 25 so that the heat dissipation bracket 40 is fixed at a constant height above the intake 25 . .

The spindle 50 adjusts the amount of gas ejected from the gas container C to the nozzle 20 in a predetermined range while moving in the horizontal direction according to the rotation in the gas flow path 13 of the valve casing 10 .

And at one end of the spindle 50 in the longitudinal direction, a valve head 51 in close contact with the valve seat 14 is formed, and at the other (opposite) end, a knob 52 for easy rotation operation is provided. It is available.

That is, a part of the spindle 50 is screwed while being inserted into the gas flow path 13 of the valve casing 10 , and the valve head 51 and the valve seat 14 of the valve casing 10 are rotated by the rotation operation. By adjusting the gap of the gas container (C), it is possible to adjust the amount of gas ejected from the nozzle (20) to a certain range.

The flame forming plate 60 is mounted as if closing the upper end of the opening of the chamber 31 in order to uniformly disperse and diffuse the mixed gas of air and fuel gas ejected through the chamber 31 into a plurality of fine holes. .

That is, the flame forming plate 60 uniformly disperses and diffuses the mixed gas discharged to the upper portion over the entire area through the fine holes to generate combustion and flame upon ignition, thereby increasing the heat generation efficiency by complete combustion, and It can reduce the emission of environmental pollutants such as carbon monoxide and nitrogen oxides due to incomplete combustion.

Here, the flame forming plate 60 is formed in the shape of a disk, and the edge portion thereof may be mounted as if it were placed on the opening of the chamber 31 .

On the other hand, the flame forming plate 60 is preferably applied by adopting a metal form, but is not limited thereto, and for example, a metal fiber, a ceramic fiber, a ceramic having a plurality of fine holes formed on the entire surface. Of course, it may be made of a porous material such as a plate, ceramic foam, or stainless plate.

In addition, the flame forming plate 60 may be formed in various shapes such as a shape corresponding to the opening of the chamber 31 in addition to the disk shape, for example, a rectangle, a semicircle, an oval, and the like.

In addition, the flame forming plate 60 may be stably fixed to the upper side of the chamber 31 while the outer circumference thereof is surrounded by the fixing cap 35 mounted to the upper portion of the venturi tube 30 by screwing.

That is, the second male screw 34 is formed on the upper outer circumferential surface of the venturi tube 30 , and the female screw is formed on the inner circumferential surface of the corresponding fixing cap 35 to form a flame in a screw tightening method. The plate 60 may stably maintain a state fixed to the upper portion of the venturi tube 30 .

In addition, a distribution plate (not shown) may be further provided in the chamber 31 to effectively mix, disperse and diffuse the fuel gas and air supplied to the flame forming plate 60 , and to prevent backfire.

That is, since the distribution plate disperses and diffuses the mixed gas of air and fuel gas in the chamber 31, and the flame forming plate 60 disperses and diffuses it again, the backfire phenomenon can be prevented as well as the air and fuel gas. The mixed gas is uniformly dispersed and diffused so that the flame rises evenly and stably from the crater, greatly improving combustion efficiency and heat generation performance.

On the other hand, as shown in FIGS. 6 and 7 , the portable gas combustion appliance 1 according to the first embodiment of the present invention has a grate ( 70) is included.

That is, an insertion hole 71 for stably mounting to the flange 32 of the venturi tube 30 is formed in the lower center of the grate 70 , and the flange 32 is located inside the lower portion of the insertion hole 71 . ) of the first male screw 33 and the female screw 72 for screw coupling are formed, and a plurality of support portions 73 for supporting the heating object are coupled to the periphery of the upper portion in at least three directions.

Here, the grate 70 can be stably supported according to the size of various cooking utensils, while minimizing the volume according to the needs and selection of the user to increase convenience and space efficiency during portability and storage. can be done

The operation and principle of operation of the portable gas combustion device 1 according to the first embodiment of the present invention configured as described above will be described as follows.

First, when the fuel gas of the gas container (C) is injected into the venturi tube 30 through the valve casing 10 and the nozzle 20, the air pressure around it drops, and the pressure change at this time causes the venturi tube ( 30) External air is naturally introduced into the intake 25 through the air inlet 26 of the intake 25 located at the bottom, and at the same time, it is sucked into the venturi tube 13 together with the fuel gas to mix and pass through. A gas is formed and supplied to the chamber 31 .

Subsequently, the mixed gas of air and fuel gas in the chamber 61 is uniformly dispersed and diffused by a separate distribution plate, which is further uniformly dispersed and diffused while passing through the flame forming plate 60 again. is emitted

Thereafter, the mixed gas is ignited by an ignition mechanism such as a lighter, and burns in all directions along the entire surface of the flame forming plate 60 , so that the flame rises evenly and stably to heat the object to be heated.

In this process, even if the flame suddenly goes counter to the flow of the mixed gas, the distribution plate blocks it safely, preventing accidents or breakdowns due to the backfire phenomenon.

That is, the combustion efficiency and heat generation performance can be greatly improved because the air and fuel gas are mixed and dispersed and diffused, resulting in an even flame.

In addition, while adjusting and maintaining the amount and pressure of the gas ejection of the gas container (C) in a certain range, the rotation operation of the air control ring (27) flows into the venturi tube (30) through the air inlet (26) and the intake (25) By regulating the amount of outside air inflow, the firepower and flame can be freely changed.

That is, the generation of a flame can be controlled by opening and closing the air inlet 26 by rotating the air control ring 27 , which is fastened with a screw to the lower part of the venturi tube 30 .

Therefore, according to the needs or selection of the user, the use can be easily changed and used as a cooking burner or a heating stove, so it is possible to solve the inconvenience of having to separately carry or store each of them.

Furthermore, since the valve casing 10 and the venturi pipe 30 are not directly connected, but are indirectly connected by the intake 25 and the heat dissipation bracket 40 and the support 45 with a certain space away from each other, the venturi It is possible to block the heat conducted from the pipe 30 to the gas container (C).

Therefore, it is possible to improve the safety of preventing the gas container (C) from physically exploding without being able to withstand the internal pressure due to a decrease in strength due to overheating.

8 and 9, the portable gas combustion device 2 according to the second embodiment of the present invention is largely a valve casing 10, a nozzle 20, an intake 25, and an air conditioning ring 27. , a venturi tube 30 , a heat dissipation bracket 40 , a mounting bracket 47 , a support 45 , a spindle 50 , and a flame forming plate 60 .

In particular, the mounting bracket 47 supports and supports the flame spreader F so that it is positioned above the venturi tube 30, and the upper end is fixed to the lower part of the flame spreader F by a fastening method such as bolting, The lower end is fixed to the edge of the heat dissipation bracket (40).

Here, the mounting bracket 47 is erected in at least two directions among the edges of the heat dissipation bracket 40 to stably support and support the flame spreader F.

That is, when the portable gas combustion device 2 is used for heating, a flame spreader (F) for heating that uses the mounting bracket 47 to spread the flame area above the venturi tube 30 and increase the heat generation performance (radiation temperature) (F) can be easily detached.

On the other hand, by further forming a bent portion vertically bent upward (unsigned) on a portion of the edge of the heat dissipation bracket 40 , it is possible to stably support and fix the mounting bracket 47 so as not to move.

Here, among the components related to the portable gas combustion device 2 according to the second embodiment of the present invention, components having the same or similar operational effects as those of the first embodiment are denoted by the same reference numerals, and A repetitive and detailed description will be omitted.

On the other hand, the present invention is not limited by the above-described embodiment and the accompanying drawings, and can be variously modified and applied in various ways not illustrated within the scope without departing from the technical spirit of the present invention, as well as each It is apparent to those of ordinary skill in the art to which the present invention pertains that it can be widely applied by changing the substitution of components and other equivalent embodiments.

Therefore, the contents related to the modification and application of the technical features of the present invention should be interpreted as being included within the technical spirit and scope of the present invention.

10: valve casing 11: adapter
12: gas inlet 13: gas flow path
14: valve seat 15: gas outlet
20: nozzle 25: intake
26: air inlet 27: air conditioning ring
30: Venturi 31: Chamber
32: flange 33: first male thread
34: second male screw 35: fixing cap
37: third male thread 40: heat dissipation bracket
41: heat radiation hole 42: screw hole
45: support 47: mounting bracket
50: spindle 51: valve head
60: flame forming plate 70: great
71: insertion hole 72: female thread
73: support C: gas container
F: flame spreader

Claims (4)

An adapter 11 for connecting to the nozzle of the gas container C is formed at the lower portion, and a gas inlet 12 communicating with the adapter 11 and a gas flow path 13 communicating with the gas inlet 12 are formed on the inside The valve casing 10 is formed, the valve seat 14 is formed in the gas passage 13, the gas outlet 15 communicating with the gas passage 13 is formed on the upper portion;
a nozzle 20 mounted on the valve casing 10 to eject fuel gas discharged through the gas outlet 15;
a hollow intake 25 mounted on the upper portion of the valve casing 10 as if surrounding the nozzle 20 and having a plurality of air inlets 26 through which external air is introduced;
It is provided on the upper side of the intake 25 and mixes the fuel gas ejected from the nozzle 20 and the air flowing in through the air inlet 26 to disperse and diffuse it through a pressure change, and gradually increase toward the upper portion upward. A venturi tube 30 having a chamber 31 having a wider width;
a heat dissipation bracket 40 mounted on the lower end of the venturi tube 30 and having a plurality of heat dissipation holes 41 formed therein;
The venturi tube 30 is positioned above the intake 25 at a certain distance, and is erected in at least two directions among the upper edges of the valve casing 10 to support the heat dissipation bracket 40 at a certain height. a plurality of supports 45 for supporting;
A valve head 51 is inserted into the gas flow path 13 of the valve casing 10 and moves in a horizontal direction according to rotation by adjusting a gap between the valve seat 14 and the valve head 51 to obtain gas. a spindle 50 for controlling the amount of gas ejected from the vessel C to the nozzle 20 in a predetermined range;
a flame forming plate 60 mounted on the venturi tube 30 and dispersing and diffusing the mixed gas ejected through the chamber 31 into a plurality of fine holes;
A portable gas combustion apparatus comprising a.
According to claim 1,
An air control ring (27) fitted around the outer circumference of the intake (25) and coupled in a screw fastening method, and opens and closes the air inlet (26) according to the rotational direction to control the amount of air flowing into the venturi tube (30) );
A portable gas combustion apparatus further comprising a.
3. The method of claim 1 or 2,
A flange 32 is formed to protrude from the upper outer periphery of the venturi tube 30, and a first male screw 33 is formed on the flange 32,
An insertion hole 71 for mounting on the upper portion of the venturi tube 30 is formed in the lower center portion, and the first male screw 33 of the flange 32 is screwed into the lower inner side of the insertion hole 71 . The female screw 72 for the grate is formed, and the support portion 73 for supporting the heating object on the periphery of the upper portion is coupled to a plurality of grates (70);
A portable gas combustion apparatus further comprising a.
3. The method of claim 1 or 2,
A plurality of mounting brackets (47) erected and fixed in at least two directions among the edges of the heat dissipation bracket (40) to support and support the flame spreader (F) positioned above the venturi tube (30);
A portable gas combustion apparatus further comprising a.

Images