KR101830231B1

KR101830231B1 - Burner

Info

Publication number: KR101830231B1
Application number: KR1020160022472A
Authority: KR
Inventors: 이문규
Original assignee: 이문규
Priority date: 2016-02-25
Filing date: 2016-02-25
Publication date: 2018-02-20
Also published as: KR20170100208A

Abstract

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a burner using a fuel supply control device, and more particularly, to a burner of a burner and a stove for leisure or home and industrial boilers using a fluid such as alcohol or oil as fuel, And to prevent fire by stably cutting off fuel supply when incapable of combustion.
The present invention relates to a fuel supply system for supplying fuel through a fuel supply hose connected between a burner main body and a fuel tank and adjusting fuel supply through a fuel inflow control valve, And a supply valve is provided.

Description

Burner {Burner}

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to an alcohol burner or a petroleum burner using a fuel supply control device, and more particularly, to a burner of a burner and a stove for leisure or household and industrial boilers using a fluid such as alcohol, The fuel supply is stably supplied and burned, and at the same time, the fuel supply can be stably prevented in case of incapable combustion, thereby preventing fire.

Generally, an alcohol burner is used as a leisure alcohol burner such as domestic utility utility model No. 1985-0002681 or registered utility model innovation No. 0311261, which provides a simple way to heat food in mountains or rivers, It is applied to the boiler using alcohol burner such as alcohol.

The burners provided with such alcohol as fuel are less affected by the smell, and are preferred due to the low noise, the low fuel cost and the high safety as compared with the gas burner.

However, in order to reduce the fuel cost, when the alcohol fuel is selected and directly mixed with the alcohol contained in the fuel cell, such as the above-mentioned prior art, or when the alcohol fuel is contained in the alcohol fuel tank or the alcohol is ignited, And it is difficult to maintain the ignition continuously for a long time. That is, in the past, when the alcohol is vaporized in the air, the amount of vaporized gas which is annihilated without any resistance is increased, and accordingly, the consumption of alcohol is increased. As a result, consumption of alcohol in the storage tank is increased and it is difficult to continuously keep ignition for a long time. The problem of storing alcohol is pointed out.

In addition, the alcohol burner of the prior art has a problem that the thermal power is very weak as compared with the gas burner, so that it can not enjoy the expected effect as much as the consumed fuel.

Particularly, in a combustor such as a burner that uses oil or alcohol as a fuel in the past, an opening / closing device for regulating the amount of fuel supply or cutting off the supply of fuel is provided to stably supply fuel. However, when the combustion of the fuel is stopped due to the external influence during the fuel combustion, that is, the non-combustion condition such as the lack of ambient oxygen or the strong wind or the like, the flow rate of the fuel can be controlled through the regulator valve Fuel is supplied continuously to the outside of the combustor, and when the burned fuel approaches the combustible fuel, there is a risk of spreading into a large-sized fire. Therefore, in order to solve this problem, the temperature or heat A sensing sensor for sensing the fuel tank, and a sensor electrically connected between the fuel tank and the combustor Through the associated operation of the solenoid valve and the LES and block the fuel oil supply.

However, in the case where the fuel supply is interrupted by the use of an electric means in case of incapability of combustion as described above, there is no means for solving the problem when the power supply malfunctions, and when the power supply is interrupted, It is impossible to exclude the danger of fire and it is applicable only to a burner which uses petroleum or alcohol as fuel only in a place where electric power is supplied, and it is pointed out that electric fuel supply cutoff device is difficult to use for general purpose.

Therefore, there is an urgent need for a stable device that cuts off the supply of fuel when the fuel is not combusted without using electrical means.

[Patent Literature]

Domestic public utility model No. 1985-0002681

Registered Utility Model No. 0311261

Published Japanese Patent Application No. 2003-0041429

The present invention has a technical problem of preventing fuel supply without using electrical means when combustion of fuel is not performed.

Disclosure of Invention Technical Problem [8] The present invention provides a burner that reduces fuel consumption and maintains ignition for a long time, as well as significantly increases safety.

The present invention relates to a fuel supply system for supplying fuel through a fuel supply hose connected between a burner main body and a fuel tank and adjusting fuel supply through a fuel inflow control valve, And a supply valve is provided.

In addition, the present invention is characterized in that a fuel hose connected to a fuel storage tank is inserted into and connected to a fuel inlet located below a side of a burner main body having a fuel holding space at a lower portion thereof, and between the fuel inlet and a fuel hose connected to the fuel storage tank, And a backflow prevention filter, wherein the fuel supply valve has a double structure provided between the burner main body and the fuel inflow control valve; A nonflammable fiber disposed in the lower main body fuel storage space; A porous igniter provided on the non-combustible fiber; A vaporized gas discharge pipe inserted through a hole formed at the center of the porous pyrotechnic body and the incombustible fiber; And a fine hole nozzle coupled to the upper side of the vaporizing gas discharge pipe.

The present invention controls the amount of fuel flowing through a supplied fuel flow rate control valve to supply fuel through a fuel supply valve having a dual structure to stably supply a certain amount of fuel, The gas is sucked into the fine hole of the silicon carbide body to vaporize the fuel, so that ignition is carried out primarily, and the vaporized gas generated by the pressure generated in the alcohol staying space by the heat of the pyrotechnic body passes through the gas- So that ignition can be maintained continuously for a long period of time while reducing the amount of fuel consumption. In addition to the prevention of backfire by the gas discharge pipe, the explosion inside the fuel retention space can be eliminated, Can be largely secured, and in particular, When the combustion of the fuel is stopped by the unburned condition such as the lack of ambient oxygen or the external influence during the fuel combustion in the main body and the strong wind or the like, the fuel supply valve of the double structure is automatically shut off to prevent the inflow of the fuel supply, The fuel can be prevented from being burned due to fuel inflow into the inside of the burner and thus the safety of the burner can be secured. Which can be used in any place where there is no electric power source, and a fuel supply control device which can be used in general purpose such as an alcohol and oil burner, a boiler, a stove, and the like It is possible to provide a burner.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a perspective view of a double-structure fuel supply valve disassembled perspective view showing a fuel supply control device of the present invention. FIG.
Fig. 2 is a cross-sectional view of the fuel supply valve of the dual structure showing the fuel supply control device of the present invention
3 is a longitudinal sectional view of a fuel supply valve having a dual structure according to the present invention applied to an alcohol burner according to a first embodiment
Fig. 4 is a longitudinal sectional view of an operating state in a state where fuel is supplied in the first embodiment of the present invention
5 is a perspective view of an assembled state of the alcohol burner according to the first embodiment of the present invention.
6 is a longitudinal sectional view of a furnace installation state according to a second embodiment of the present invention
7 is a cross-sectional view

2 is a cross-sectional view of a fuel supply valve of a dual structure showing a fuel supply control device of the present invention. FIG. 2 is a cross-sectional view of a fuel supply valve according to a first embodiment of the present invention. It is an object of the present invention to provide a general-purpose fuel supply control device applicable to a burner of a petroleum burner or a boiler or a burner of a stove.

The fuel supply control device of the present invention controls the supply of fuel through the fuel supply hose 30 connected between the burner body 10 and the fuel tank 20 through the fuel inflow control valve 40 A fuel supply valve 50 having a dual structure is provided between the burner main body 10 and the fuel inflow control valve 40.

The double-structured fuel supply valve 50 includes a cylinder 51a inside the valve body 51; A valve body 52 provided inside the cylinder 51a; The valve body 52 may be formed by integrally forming an upper valve body 52a and a lower valve body 52b through an intermediate connection body 52c. A lower portion of the upper valve body 52a is positioned above the upper packing 60 provided at the upper step 51a 'inside the cylinder 51a and the lower valve body 52b is positioned above the cylinder 51a The lower packing 61 provided on the lower step 51a "

The valve body 52 can be provided with a metal material having a high or low specific gravity.

The flow rate adjusting stopper 70 is screwed to the fitting screw hole 52a 'formed in the upper center of the upper valve body 52a so that the height of the flow rate adjusting stopper 70 can be adjusted, The size of the space S1 can be increased or narrowed and the amount of fuel supplied can be adjusted. The flow rate control stopper 70 can be provided in the form of an assembly bolt.

The width of the upper valve body 52a is wider than the width of the lower valve body 52b so as to receive the fluid pressure of the fuel staying in the upper fuel retention space S1 of the cylinder 51a , And the intermediate connecting body (52c) and the lower valve body (52b) are positioned in the lower fuel retention space (S2).

When the fuel is introduced through the fuel inlet 51 '' of the valve body 51, the supply pressure of the fuel to be supplied when the fuel is introduced into the valve body 51 ' The lower valve body 52b is lifted so that the entire valve body 52 can be easily raised so that the fuel can be easily supplied. When the fuel is supplied to the burner main body 52b, The unburned fuel in the burner main body 10 flows through the fuel supply hole 12 under the burner main body 10 to the upper portion of the valve main body 10 The fluid pressure is recovered to the fuel retention space S1 and downwardly applied to the upper fuel retention space S1, and the fluid pressure strongly presses the upper surface of the upper valve body 52a, which is wide, The entire valve body 52 is lowered so that the lower edges of the upper and lower valve bodies 52a and 52b are brought into contact with the upper and lower packings 60 and 61 to block fuel supply, The fuel supplied by the dual valve elements 52a and 52b is shut off without any electrical means so that a fire caused by fuel bites can be prevented .

If only one of the upper valve body 52a or the lower valve body 52b constituting the fuel supply valve 50 is provided at the fuel inlet of the upper fuel retention space S1 or the fuel In the case of the former, the upper valve body 52a is maintained in an open state by the pressure of the fuel supplied from the lower fuel retention space S2, and when the internal combustion of the burner main body 10 is stopped Since the fuel is continuously supplied until the fuel supplied from the lower fuel retention space S2 is consumed, the fuel inlet can not be closed by only one valve body, and even if the fuel inlet is closed, the closing time becomes longer, In addition, in the case of the latter, the valve body opened when the fuel flows into the burner main body The lower valve body can not be opened when the burner body 10 is re-ignited because the fluid pressure of the fuel recovered into the lower fuel retention space S2 is strong, It can not be done properly.

However, the present invention is configured by a dual structure of two upper and lower valve bodies 52a and 52b, and is divided into an upper fuel retention space S1 and a lower fuel retention space S2, The fuel supply to the burner main body 10 is cut off more quickly and stably when the burner main body 10 is unburned. When the burner is applied to a burner requiring a large amount of fuel, It is preferable to use a metal material having a large specific gravity.

The flow rate adjusting stopper 70 according to the above construction can be loosened or tightened through the fitting screw hole 52a 'of the upper valve body 52a to set the protrusion height of the flow rate adjusting stopper 70 to be long or short When the protrusion length of the flow rate control stopper 70 is set to be long, the amount of fuel flowing into both sides of the upper valve body 52a is small, and in the opposite case, the amount of fuel flow can be increased. The fuel retention space S1 between the upper portion of the upper valve body 52a and the lower portion of the burner main body 10 is enlarged so that the burner body 10, If the combustion is not generated inside, the fluid pressure of the fuel staying in the fuel retention space S1 is largely affected. In the opposite case, the fluid pressure can be controlled to be low. In order to perform the same function, A screw 51 'is formed around the upper portion of the main body 51 and screwed into a fitting screw portion 11 provided below the burner main body 10 so that the valve main body 51 is loosened, In the case of descending from the fitting screw portion 11, it is possible to secure a large retention space in the fuel retention space S1, and in the opposite case, the size of the retention space in the fuel retention space S1 can be reduced Can perform functions have.

As described above, the flow rate control stopper 70 having the protrusion height adjusted is raised together with the valve body 52 due to the fuel inflow pressure during the inflow of fuel, and is interfaced with the outer bottom surface of the burner body 10 to prevent any further rise The fuel is supplied to the fuel supply holes 12 of the burner body 10 between the upper and lower valve bodies 52a and 52b and the upper and lower packings 60 and 61 as described later The amount of fluid pressure of the fuel recovered in the upper fuel retention space S1 when the flame is turned off due to external influences during the burning operation as described above is controlled by the flow rate control stopper 70, So that the fuel supply cutoff can be performed.

The fitting screw portion 11 provided below the burner main body 10 can be provided in the fixing bracket 11A protruded below the burner main body 10 to be provided.

A fuel supply passage S3 communicating with the lower fuel retention space S2 is formed in the lower portion of the valve body 51 so as to communicate with the fuel inlet hole 51 "formed at one side of the valve body 51 And a fuel supply hose 30 connected to the fuel tank 20 is connected to the fuel inflow hole 51 'through a fuel inflow control valve 40 and an anti-backfill filter unit 80 having a built- And the fuel is supplied through the fuel supply hose (30).

In the figure, reference numeral 90 denotes a lower support pedestal.

Hereinafter, the double-structured fuel supply valve 50 constructed as described above will be specifically described by applying it to the alcohol burner or the oil burner shown in Figs. 3 and 5.

That is, the threaded portion 51 'of the valve body 51 constituting the double-structured fuel supply valve 50 is fastened to the screw portion 11 in the fixing bracket 11A projected below the burner main body 10 The fuel inflow opening 51 'formed at one side of the valve body 51 is connected to the fuel inflow control valve 40 and the backfill prevention filter 40 in the inside of the upper fuel retention space S1, (30) connected to the fuel tank (20) through a back-flushing filter portion (80) having a built-in filter (ceramic or cotton filter made of a thin aluminum plate and coiled) And the fuel supply hose 30. The height of the fuel tank 20 is preferably set to be higher than the installation height of the burner main body 10. [

The burner body 10 in the state of being fastened as described above includes the non-combustible fiber 100 disposed on the bottom surface of the fuel retention space S such as alcohol (or petroleum) formed in the lower portion; A porous pyrotechnic body 110 provided on the incombustible fiber 100; A heating metal net 120 installed on the upper surface of the porous body 110; A vaporizing gas discharge pipe (130) installed through a hole formed at the center of the porous pyrotechnic body (110) and the incombustible fiber (100); And a fine pore (porous) nozzle 140 coupled to the upper side of the vaporizing gas discharge pipe 130.

In the drawings, at least one fuel feed hole 12 is formed on the bottom surface of the burner main body 10, 13 is an air hole, and 14 is a pedestal.

In this case, the non-combustible fibers 100 may be formed in the form of a surface or a non-woven fabric. This function is to prevent the ignition of the porous pyrotechnic body 110 from being transmitted to the valve body 51, Fuel injected through the fuel supply hole 12 is absorbed by the porous pyrotechnic body 110 through the incombustible fiber 100. In this case,

The porous pyrotechnic body 110 is a heat generating body made of silicon carbide (silicon carbide compound or mixture) formed with a large number of innumerable fine pores. When a fuel such as alcohol is ignited in the state of being absorbed in the fine pores, Accordingly, the porous pyrotechnic body 110 is ignited, thereby causing the porous pyrophoric body 110 to generate heat at a high temperature, thereby vaporizing the absorbed alcohol, and continuously generating ignition for a long period of time by the continuously generated vaporization heat And the alcohol is vaporized in the state where the alcohol is absorbed in the innumerable micropores of the porous pyrotechnic body 110, so that the consumption of alcohol can be greatly reduced.

When the porous pyrotechnic body 110 is ignited to generate heat, the exothermic temperature of the porous pyrotechnic body 110 is transferred to the fuel retention space S in the lower part of the burner body 10 to raise the internal pressure, The vaporized gas generated by the heating of the igniter 110 quickly flows into the internal pressure through the vaporizing gas inlet hole 131 of the vaporizing gas discharge pipe 130 and moves upward to the inside of the vaporizing gas discharge pipe 120 So that the ignition of the vaporized gas through the fine hole nozzle 130 and the ignition of the porous ignition member 110 is transferred to the vaporized gas ejected through the porous nozzle 140, This eliminates the risk of explosion due to the internal pressure of the alcohol staying space S due to the heat generation of the porous pyrotechnic body 100, The flame ignited from the upper side is not transmitted to the downward direction in the vaporizing gas discharge pipe 130 due to the vaporization of the vaporized gas. Particularly, if the vaporizing gas discharge pipe 130 is not installed, it is difficult to discharge the vaporized gas generated in the fuel retention space S, so that the risk of explosion due to the vaporized gas is high and the absorbing power of the introduced alcohol decreases, ) Is difficult to be continuously ignited.

The bottom surface of the vaporizing gas discharge pipe 130 is in a closed state and four vaporizing gas inlet holes 131 are formed around the bottom of the vaporizing gas outlet pipe 130, 130 may be inserted or screwed together.

Accordingly, in the present invention, ignition is continuously performed for a long time by the non-combustible fibers 100 and the porous pyrotechnic body 110, safety can be secured while fuel consumption is reduced, and the heating metal rope 120 is porous When the igniter 110 is burned, the igniter 110 generates heat by emitting the burned light, thereby making it possible to visually confirm whether or not the combustion operation is performed in the case of a colorless odorless alcohololine fuel.

The upper part of the upper surface of the porous pyrotechnic body 110 may be formed in a stepwise manner to form and provide an air staying space 111. In the upper part of the burner body 10 in which the air staying space 111 is located, So that the unburned alcohol can be burnt by the inflow of air during the ignition of the porous pyrotechnic body 110. Accordingly, the gasified gas passing through the air staying space 111 and the stay And the air introduced through the plurality of air holes 13 is mixed with the air introduced through the air holes 13 so that the thermal power to be ignited is further promoted in the air staying space 111. This thermal power is applied to the entire surface of the porous pyrotechnic body 110 It will increase the overall firepower.

In this embodiment, the upper surface of the porous pyrotechnic body 110 is ignited if the vaporized gas vaporized in the porous pyrotechnic body 110 is ignited. However, the air staying in the air retention space 111 and the porous ignition (Solidification point) is formed at a higher temperature because the vaporized gas vaporized from the sieve body 110 is mixed and ignited, so that the temperature at which the entire porous sintered body 110 is ignited is greatly increased, The ignition temperature can be greatly increased, and it is also applicable as a burner of a domestic boiler or an industrial boiler.

On the other hand, the fuel inside the fuel tank 20 flows into the fuel supply hole 30 of the burner main body 10 through the fuel supply hose 30, the backflash filter portion 80, the fuel control valve 40, the fuel supply valve 50, Fuel which is regulated in flow rate by the fuel control valve 40 is supplied to the fuel inlet hole 51 "through the fuel inlet hole 51 " Is supplied to the fuel supply passage S3 inside the valve body 51 via the fuel supply valve 53 and the supplied fuel is placed in the lower step 51a "of the lower fuel retention space S2 of the cylinder 51a by the fuel supply pressure The lower valve body 52b which has closed the fuel supply passage S3 is raised so that the fuel through the fuel supply passage S3 flows through the open passage of the lower packing 61 and the lower valve body 52b Fuel is filled into the fuel retention space S2, and by the rise of the lower valve body 52b, The intermediate connecting body 52c and the upper valve body 52a are also lifted and the upper surface of the flow rate adjusting stopper 70 is brought into contact with the lower surface of the burner body 10 to prevent the valve body 52 from rising The fuel is supplied to the upper fuel retention space S1 and the fuel supply holes 12 of the burner body 10 while controlling the amount of fuel to be supplied so that the burner body 10 is ignited as described above, The fuel supply valve 50 of the present invention operates to supply fuel to the burner main body 10 when the ignition is stopped due to the unburned condition or strong external wind while being supplied to the main body 10, The fuel supply to the fuel retention space S can be shut off without electrical means to prevent a fire caused by fuel shortage.

That is, when the ignition of the porous igniter 110 is stopped due to external influences, especially when the burner main body 10 is made of alcohol as a raw material, the alcohol emits only colorless and weak odor, The fuel in the fuel tank 20 is supplied to the fuel supply hose 30 through the backflow prevention filter unit 80 and the fuel control valve 40 through the fuel supply valve 50 and the Fuel is continuously supplied to the inside of the burner body 10 through the fuel supply hole 12 and the fuel is overflowed to the outside of the burner body 10, In this case, since the fuel absorbed in the non-combustible fiber 100 and the porous pyrotechnic body 110 is in a state in which the combustion is stopped, the remaining unburned fuel is supplied to the lower portion of the burner main body 10 hole The fluid is returned to the upper fuel retention space S1 of the valve body 51 via the valve body 12 and fluid pressure is generated in the upper fuel retention space S1 and this fluid pressure is supplied to the upper surface of the upper valve body 52a The fluid pressure is applied to press the upper valve body 52a downward, so that the entire valve body 55 is lowered to automatically shut off the fuel supply, thereby preventing a fire by the overturning.

When the fuel is shut off and the user ignites the porous pyrotechnic body 110 of the burner main body 10, the valve body 52 is raised by the fuel supply pressure again to supply the fuel, The fuel supply amount is controlled by adjusting the height of the flow rate control stopper 70 in addition to the fuel inflow control valve 40 in correspondence with the amount of combustion by ignition, The valve body 51 and the fixing bracket 11A can be adjusted by adjusting the height by screwing.

Fig. 6 is a vertical sectional view of the installation state of the second embodiment in which the present invention is applied to a stove burner. Fig. 7 is a plan view of the burner main body 10A. In this embodiment, the fuel tank 20, The fuel supply valve 50 is provided in the fuel supply hose 30 between the backflow prevention filter unit 80 and the fuel supply hose 30 so that the screw 51 ' And a fuel discharge hole 152 is formed at one side of the lid 150 so as to communicate with the fuel supply hose 30 at one side of the lid 150. [ .

The leakage preventing packing can be provided when the inner screw portion 151 of the lid 150 and the screw portion 51 'of the valve body 51 are screwed together and the width of the space of the upper fuel retention space S1' Through adjustment of the inner threaded portion 151 of the lid 150 and the threaded portion 51 'of the valve body 51.

The burner main body 10A to be applied to the hearth is provided with a support cylinder 10-2 which stands at the center of the support member 10-1 and is fixed on the circumference of the support cylinder 10-2, The combustible fiber 100 'and the porous igniter 110' are stacked in the fuel retention space S4 formed between the lower circumference of the cylinder 10-2 and the inner side surface of the support member 10-1, (10-3) in which a plurality of air holes (10-3 ') are formed above the support cylinder (10-1) So that the combustion passage 10-4 is formed. Reference numeral 10-5 in the figure denotes a vaporizing gas discharge hole pierced by the porous igniter 110 ', 10-5' is a vaporizing gas discharge pipe, and 10-5 '' is a fine pore nozzle, The combustible fiber 100 'and the porous material 100' are provided in the fuel retention space S4 on the fuel inflow hole 10-6 side, while the fuel retention space 110 'is provided in the fuel retention space S4 below the combustion passage 10-4. So as to prevent the flame from spreading toward the fuel inlet hole 10-6 by not providing the igniter 110 '.

The fuel inside the fuel tank 20 is supplied to the fuel inlet hole 10-6 of the stove burner main body 10A through the fuel supply hose 30, the fuel supply hose 30, the backfill filter unit 80, The fuel is supplied through the regulating valve 40 and the supplied fuel is absorbed by the non-combustible fiber 100 'and the porous pyrotechnic body 110' installed below the fuel retention space S4, And the flame caused by combustion rises through the combustion passage 10-4 and flows into the combustion net 10-2 'and the ignition cylinder 10-3 provided on the circumference of the support cylinder 10-2 At the same time, the heating air is mixed with the fuel introduced through the air holes 10-3 ', so that the thermal power is greatly increased to improve the function efficiency of the stove. The vaporized gas vaporized from the porous pyrotechnic body 110' Through the vaporizing gas discharge hole 10-5 'to the vaporizing gas discharge pipe 10-5 and the fine hole nozzle 10-5 " (S4) it is possible to eliminate the risk of explosion from the inside.

In this configuration, the fuel supply valve 50 is installed in the same manner as in the first embodiment. However, in order to prevent fire explosion due to the flame, the fuel tank 20 and the anti- 80, the fuel supply valve 50 is provided and provided, and the function of supplying or shutting off the fuel is the same as that described above.

However, the screw portion 51 'of the valve main body 51 is coupled to the inner screw portion 151 of the lid 150 having the fuel retention space portion S4 to engage with one end of the lid 150, The flow rate control stopper 70 rises and the fuel is supplied to the inner upper surface of the lid 150 so as to communicate with the fuel supply hose 30. [ The fuel is supplied to the fuel discharge hole 152 through the fuel supply hose 30 through the backflow prevention filter portion 80 and the flow control valve 400 through the fuel supply hole 10-6 through the inner space of the lid 150, - the fuel retention space S4 so as to meet the ignition conditions of the stove burner main body 10A and make it possible to ignite, and when the ignited flame is turned off by external influences, Can be automatically shut off without any It can provide a conductive fireplace.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed exemplary embodiments, but, on the contrary, It will be understood that various variations and applications are possible.

It is to be understood that all changes and modifications that come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein.

10, 10A: Burner main body 10-1: Support member
10-2: Support cylinder 10-2 '
10-3: Ignition cylinder 10-3 ': air hole
10-4: Combustion passage 10-5: vaporized gas discharge pipe
10-5 ': gas exhaust hole 10-5'': fine hole nozzle
10-6: fuel supply hole 11A: fixed bracket
11: screw portion 12: fuel supply hole
13: air hole 14: pedestal
20: fuel tank 30: fuel supply hose
40: Fuel inflow control valve 50: Fuel supply valve
51: valve body 51 ': threaded portion
51 ": fuel inlet hole 51a: cylinder
51a ', 51a'': upper and lower step 52:
52a, 52b: upper and lower valve bodies 52c:
52a ': screw hole 60, 61: upper and lower packing
70: Flow rate control stopper 80: Anti-backfire filter unit
90: lower support pedestal S, S4: fuel retention space
S1, S1 ': upper fuel retention space S2: lower fuel retention space
S3: fuel supply passage 100, 100 ': non-combustible fiber
110, 110 ': porous igniter 111: air staying space
120: heat generating metal net 130: vaporizing gas outlet pipe
131: vaporizing gas inlet hole 140: fine hole nozzle
150: cover 151:
152: fuel discharge hole

Claims

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A fuel supply valve 50 having a dual structure is provided in the fuel supply hose 30 between the fuel tank 20 and the backfill prevention filter unit 80. The screw 51 ' A fuel discharge hole 152 is formed at one side of the lid 150 so as to be connected to the fuel supply hose 30 through a fuel supply hose 30 at one side The burner main body 10A includes a support cylinder 10-1 and a support cylinder 10-2 covering the periphery of the support member 10-1. 2 'in the fuel retention space S4 formed between the lower periphery of the support cylinder 10-2 and the inner side surface of the support member 10-1, and the porous nonwoven fabric 100' And a plurality of air holes (10-3 ') are formed on the support member (10-1).

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14. The fuel cell according to claim 13, wherein the non-combustible fiber (100 ') and the porous nonwoven fabric (100') are disposed in the fuel retention space (S4) below the combustion passage (10-4) formed between the support cylinder (10-2) The combustible body 100 'and the porous pyrotechnic body 110' are not provided in the fuel retention space S4 on the fuel inflow hole 10-6 side. Burner.

14. The fuel supply system according to claim 13, wherein the double-structured fuel supply valve (50) comprises: a cylinder (51a) inside the valve body (51); A valve body 52 provided inside the cylinder 51a; Wherein the valve body (52) is formed by integrally forming an upper valve body (52a) and a lower valve body (52b) through an intermediate connecting member (52c).

The flow rate control stopper (70) according to claim 13, wherein a flow rate adjusting stopper (70) is screwed into a fitting screw hole (52a ') formed in the upper center of the upper valve body Characterized in that the burner

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The fuel injection valve according to claim 16, wherein the width of the upper valve body (52a) is wider than the width of the lower valve body (52b) so that the fuel pressure of the fuel staying in the upper fuel retention space (S1) , And the intermediate connecting body (52c) and the lower valve body (52b) are positioned in the lower fuel retention space (S2).