KR20020073316A - Arclamp flamethrower with waterproof, explosion proof and warning function - Google Patents

Abstract

PURPOSE: An arc lamp type flame projector with waterproofing and explosion-proofing functions is provided in which the burner is not ignited even though a burner where an ignitor is being operated contacts combustible gas or material. CONSTITUTION: The arc lamp type flame projector with waterproofing, explosion-proofing, indication and alarm functions comprises a nozzle(117); an O-ring(104) inserted into an O-ring groove of a fourth outer circumferential surface of the nozzle(117); an insulator(116) inserted into an electrode inserting hole for igniting the nozzle(117); an ignition electrode(103) inserted and cohered onto the central part of the nozzle(117); a flame eye(118) inserted into a flame eye inserting hole of the nozzle(117); an actuator(115) inserted into an actuator inserting hole of the nozzle(117); a flame stabilizer installed on the upper part of the nozzle(117); a flame stabilizer left support(114); a flame stabilizer right support(109); a ring(108) inserted into a ring inserting hole of the flame stabilizer right support(109); a translucent cap(102); a ring(105) inserted into a ring inserting hole of the translucent cap(102); a chain(119) which is formed by linking together metallic rings connecting a ring(108) inserted into the ring inserting hole of the flame stabilizer right support(109) with a ring inserted into the ring inserting hole of the translucent cap(102); a moisture-proofing box(112); an O-ring(106) inserted into an O-ring groove on the top surface of the moisture-proofing box(112); an O-ring(111) inserted into an O-ring groove on the inner side of a first outer circumferential surface inserting hole of a nozzle for the moisture-proofing box(112); a lock nut(110) which is coupled to a male screw part for coupling lock nuts of the nozzle(117) so that the moisture-proofing box(112) is closely adhered to the lower part of a second outer circumferential surface of the nozzle; a trans for ignition(107) mounted inside the moisture-proofing box(112); a b contact point limit switch(113) mounted inside the moisture-proofing box(112); and an arc lamp type flame projector control circuit.

Description

Arc lamp flamethrower with waterproof, explosion proof and warning function

※ The technical field to which the present invention belongs is as follows.

The present invention relates to an arc lamp flame thrower having a waterproof explosion-proof and display and alarm function. Arclamp type flamethrower refers to a device that discharges and burns contents to the outside quickly to prevent the spread of disasters when an abnormality such as a leak or fire occurs in a storage tank, tank lorry, reactor, or tower.

※ The prior art related to the arc lamp flamethrower is as follows.

The prior art related to the arc lamp type flame thrower has a flare stack, and the installation position and height of the flare stack are directly below the flare stack in accordance with the provisions of Section 2, Section 6, Vent Stack Flare Stack, of the Ministry of Commerce, Industry and Energy. The radiant heat to the surface of the earth should be less than 4000 [kal / m ² · h]. However, in case of more than 4000 [kal / m ² · h], this is not the case where access is controlled, and the flare stack structure is designed to burn the gas transported by the emergency transport facility and safely discharge it to the atmosphere. It is necessary to install an automatic ignition system that can be operated at all times and not to turn off the pilot burner, or to maintain the function of the automatic ignition system completely. Also, the author is Kim Byung-hoo, signature of Perfect Gas Engineer, February 20, 2001 The first edition issuing and issuing the book. The 248P Flare Stack is a device that quickly releases and burns the contents to the outside to prevent the spread of disasters in case of abnormalities such as leaks or fires in reactors, towers, tanks, etc. Say. Applicable when the gas released is flammable and burns to eliminate hazards.

The contents (gas + liquid) discharged from the reactor, tower, tank, etc. (gas + liquid) are separated from the knockout drum, so they are transported to the seal drum to remove liquid components and prevent re-liquefaction, and from the drum back to the flare stack. It is always ignited by the pilot flame and released into the atmosphere.

Combustion occurs at the top tip of the flare stack, which generates a large amount of heat during combustion. In order to prevent secondary damage due to this heat, the height of the flare stack should be determined. In general, the height of the flare stack should be determined so that the radiant heat reaching the surface just below the flare stack is less than 4,000 kcal / m ² · h.

A pilot burner should be installed at the top tip of the flare stack to be able to burn out any gas or vapor emitted at any time, and be able to withstand strong winds or rainstorms, and a flame detector should be installed to enable re-ignition automatically when extinguishing. Should be monitored at all times. The fuel gas supplied to the pilot burner is a gas other than the exhaust gas so that the pressure flow rate is constant.

The rate of flame discharge at the burner tip should be within 20-50% of the speed of sound. Too fast will make a noise and too slow may damage the burner tip.

In case of burning the gas mixed with oxygen, there is a risk of backfire. Therefore, install a shield drum to prevent air from entering the flare system. In addition, in case of gas having a wide explosive range such as hydrogen or acetylene, a flashback arrestor is installed. If knocked away from the process area, install a knockout drum. The stack is purged with nitrogen at all times and replaced with nitrogen even after use.

The problems of the prior art flare stack are as follows.

If flammable gas leaks on the flare stack's pilot burner for 24 hours, the pilot burner may be a source of ignition and cause a fire.In order to prevent this, even if the pilot burner is installed at a high position, the flammable gas leaks lighter than air. The pilot burner is the source of ignition and causes a fire, and the fuel gas supplied to the pilot burner has to be supplied as a separate gas instead of the exhaust gas. In the case of the torch wrap, the temperature of the flame is increased and the direction of heat emission is increased. Although adjustable, the flare stack cannot adjust the direction of heat release.

In addition, when the flare stack releases flammable gas without burning the pilot burner for 24 hours, when the ignition is combusted by the auto ignition device and burned and released to the atmosphere, the auto ignition device malfunctions. There is a problem that there is no device for alarm and display. That is, it can be confirmed only at the moment of performing the performance test of the automatic ignition device.

In addition, the flame in the flare stack is bent by the wind, and when the flare stack is installed at a low position, it may cause a fire in an adjacent building or may be formed at the discharge port of a spring type safety valve such as an explosion accident in a storage tank of Gwangju Marine City Gas. The flame is bent by the wind, causing the storage tank to heat up. In other words, there is a problem that the discharge port in the flare stack can not be installed at a position low from the ground.

As described above, the flare stack has a problem in that the pilot burner becomes an ignition source when the flammable gas leaks. Accordingly, an object of the present invention is to provide an arc-lamp flamethrower having a waterproof and explosion-proof function that does not ignite even when a combustor in operation with an ignition device is in contact with flammable gas and a combustible material. The flame in Esau is bent by the wind, so the discharge hole in the flare stack has a problem that it can not be installed at a position lower than the ground. Therefore, the present invention forms an flame, such as the flame of the torch lamp, so that the flame does not bend by the wind even if installed in a low position from the ground, the arc lamp flamethrower having a function of flame stability that can control the direction of heat emission It is an object of the present invention to provide an automatic ignition device when ignited by an automatic ignition device when releasing flammable gas from the flare stack, without ignition for 24 hours, as described above. There is a problem that there is no device to alarm and display the failure of the auto ignition system when a failure occurs. In the present invention, the operation of the automatic ignition device is turned on by turning on the arc lamp, such as a street lamp or lighthouse, so that anyone can check the operation of the automatic ignition device 24 hours in the workplace and the workplace where the automatic ignition device is installed. It is an object of the present invention to provide an arclamp flamethrower having a function of automatically operating an autoignition device, and an arclamp flamethrower control circuit that can alarm the failure of an autoignition device and the operation of a combustor. It is an object of the present invention.

1 is a cross-sectional view of the arc lamp flamethrower

2 is a nozzle cross-sectional view

3 is a flame ballast cross section

4 is a flame ballast plan view

5 is a translucent cap top view

6 is a moisture proof box top view

7 is a top view of the nozzle and flame stabilizer pedestal

8 is a control circuit diagram of the arc lamp flamethrower

9 is a block diagram of an uninterruptible power supply

10 is a schematic diagram of underground explosion-proof LPG storage tank automatic explosion prevention and removal fire extinguishing facility

11 is a schematic diagram of a ground type LPG storage tank automatic explosion prevention and removal fire extinguishing facility

12 is a schematic diagram of LPG tank lorry automatic explosion prevention and removal fire extinguishing facility

13 is a schematic diagram of LPG storage tank automatic explosion prevention and removal fire extinguishing system of LPG package tank system

14 is a schematic diagram of a pressure-sensitive open large-capacity combustible gas storage tank automatic explosion prevention equipment

15 is a schematic diagram of a pressure-opening large-capacity combustible gas storage tank automatic explosion prevention equipment

Fig. 16 is a power cutoff circuit diagram of a contact pressure switch;

Fig. 17 is a power cutoff circuit diagram by a b contact pressure switch.

[Explanation of symbols on the main parts of the drawings]

101, flame ballast 116, insulator

102, translucent cap 117, nozzle

103, ignition electrode 118, flameeye

104, O-ring 119, chain

105, ring 120, AC pressure power supply of uninterruptible power supply

106, O-ring 121, output of uninterruptible power supply

107, ignition transformer 122, uninterruptible power supply

108, ring 123, bell

109, flame stabilizer right foot 124, flameeye relay

110, Locknut 125, Battery

111, o-ring 126, buzzer

112, moisture proof box 201, LPG storage tank

113, b contact limit switch 202, thermosensitive valve

114, flame stabilizer left base 203, arc lamp type flamethrower

115, actuator 204, spring-loaded safety valve

When explaining the construction and operation in detail by the accompanying drawings for the arc lamp flame thrower implemented in the present invention in order to achieve the object of the present invention as follows.

※ In order to achieve the object of the present invention, the components of the arc lamp type flamethrower implemented in the present invention and the coupling relationship between the components are as follows.

This will be described with reference to the accompanying drawings (Figs. 1 to 8).

A nozzle inlet 117-10, which is a large-diameter fluid passage, is formed below the inner central portion, and a nozzle outlet 117-, which is a fluid ejection outlet that gradually reduces the circular cross-sectional area in the upper portion of the nozzle inlet 117-10, which is a large-diameter fluid passage. 1) to form a tapered male thread 117-9 on the lower peripheral face of the longitudinal direction, and a lock nut coupling male thread portion 117-8 to the upper circumferential surface of the tapered male thread 117-9, The first outer circumferential surface 117-7 is formed on the upper portion of the lock nut coupling male thread portion 117-8 to match the outer diameter of the lock nut coupling male thread portion 117-8, and the first outer circumferential surface 117-7 is provided. The second outer circumferential surface 117-5 is formed to protrude from the upper portion of the second outer surface, and the third outer circumferential surface 117-4 is formed on the upper portion of the second outer circumferential surface 117-5 to be smaller than the outer diameter of the second outer circumferential surface 117-5. The fourth outer circumferential surface 117-3 is formed on the upper portion of the third outer circumferential surface 117-4 and smaller than the outer diameter of the third outer circumferential surface 117-4. Outer diameter of outer peripheral surface (117-3) The fifth outer circumferential surface 117-2 is formed smaller, and the actuator insertion hole 117-11 penetrating the left side of the upper end surface of the third outer circumferential surface 117-4 and the lower end of the second outer circumferential surface 117-5 is formed. In addition, an O-ring groove 117-12 is formed in the fourth outer circumferential surface 117-3, and penetrates the lower end of the second outer circumferential surface 117-5 on the left and right sides of the upper end surface of the fourth outer circumferential surface 117-3. A flame-eye insertion hole 117-13 which forms an ignition electrode insertion hole 117-6 and penetrates the lower end of the second outer circumferential surface 117-5 at the rear of the upper end of the fourth outer circumferential surface 117-3. A nozzle formed with;

An O-ring 104 inserted into an O-ring groove 117-12 of the fourth outer circumferential surface 117-3 of the nozzle 117;

An insulator 116 inserted into the ignition electrode insertion hole 117-6 of the nozzle 117;

An ignition electrode 103 inserted into and in close contact with the center of the insulator 116;

A flame eye 118 inserted into the flame eye insertion hole 117-3 of the nozzle 117;

An actuator (115) inserted into an actuator insertion hole (117-11) of the nozzle (117);

It is installed on the top of the nozzle 117 and forms a plurality of air suction holes 101-1 on the left side of the short pipe, and forms a plurality of air suction holes 101-2 on the right side of the short pipe, and the front surface of the short pipe. A flame stabilizer (101) having a plurality of air suction holes (101-3) formed therein and a plurality of air suction holes (101-4) formed at the rear of the short pipe;

A rectangular bar is bent at a right angle, and one end thereof is formed with a curved portion 114-1 to be in close contact with the left side of the second outer circumferential surface 117-5 of the nozzle 117. A flame stabilizer (101) left pedestal (114) which arc-welds (114-2) the outer peripheral surface (117-5), the other end and the lower end of the flame stabilizer (101);

A rectangular bar is bent at a right angle, and one end thereof is formed with a curved portion 109-1 to be in close contact with the right side of the second outer circumferential surface 117-5 of the nozzle 117. 2 the outer peripheral surface 117-5 is arc welded 109-2, and a ring insertion hole 109-3 is formed at the right side thereof, the other end and the lower end of the flame stabilizer 101 and the arc welding 109-4 A flame stabilizer right pedestal 109;

A ring 108 inserted into the ring insertion hole 109-3 of the flame stabilizer right foot 109;

In the cylinder which is inserted into the fourth outer circumferential surface 117-3 of the nozzle 117 and the bottom surface is opened to the atmosphere to form an empty space therein, a protrusion 102-1 is formed on the outer circumferential surface of the lower cylinder, and the protrusion A translucent cap 102 having a ring insertion hole 102-2 formed in 102-1;

A ring 105 inserted into the ring insertion hole 102-2 of the translucent cap 102;

The ring 108 inserted into the ring insertion hole 109-3 of the flame stabilizer right foot 109 is connected to the ring 105 inserted into the ring insertion hole 102-2 of the translucent cap 102. A chain 119 formed by stitching a plurality of metal rings together;

The cylinder is inserted into the first outer circumferential surface 117-7 of the nozzle 117 to be in close contact with the lower end of the second outer circumferential surface 117-5 so that the upper surface is opened to the atmosphere to form an empty space therein. An O-ring groove 112-1 is formed in the circular surface, a first outer circumferential surface 117-7 of the nozzle 117 is formed in the inner center of the cylinder, and an insertion hole 112-2 is formed, and the first outer circumferential surface of the nozzle is inserted. An O-ring groove 112-3 is formed inside the hole 112-2, and the female thread portion 112- for conduit connection is formed next to the first outer circumferential surface insertion hole 112-2 of the nozzle so as to be eccentric with the center of the cylinder. A moisture proof box 112 which forms 4);

An O-ring 106 inserted into an O-ring groove 112-1 on the top surface of the moisture-proof box 112;

An O-ring 111 inserted into an O-ring groove 112-3 inside the first outer circumferential surface insertion hole 112-2 of the nozzle of the moisture-proof box 112;

A lock nut 110 coupled to the lock nut coupling male screw part 117-8 of the nozzle 117 to closely contact the moisture proof box 112 to a lower end of the second outer circumferential surface 117-5 of the nozzle;

An ignition transformer 107 mounted inside the moisture proof box 112;

A b contact limit switch 113 mounted inside the moisture proof box 1120;

An ignition transformer 107 for the uninterruptible power supply 122, the AC input power supply 120 of the uninterruptible power supply 122, the output 121 of the uninterruptible power supply, and the output 121 of the uninterruptible power supply. B contact limit switch 113 and a bell at the output of the uninterruptible power supply, and the arc generating circuit which connects the primary side of the shunt, and connects the ignition electrode 103 to the secondary side of the ignition transformer 107. The flame-eye relay 124 is connected to the operation alarm circuit of the arc lamp type flamethrower which connected 123 in series, and the output 121 of the uninterruptible power supply, and the flame-eye 118 is connected to the flame-eye relay 124. Is connected to the output 121 of the uninterruptible power supply, and the arc lamp flamethrower comprising a failure alarm circuit of the arc generating circuit in which the flame eye relay b contact 124-1 and the buzzer 126 are connected in series. It is characterized by including the control circuit (Fig. 8).

※ Embodiments of the arc lamp flame thrower implemented in the present invention to achieve the above object is as follows.

① Arc lamp to be able to reproduce the action of each component and the arc lamp flamethrower in the coupling relationship between the components and the components of the arclamp flamethrower implemented in the present invention to achieve the above object Basic data generated during the manufacture of flamethrowers are as follows.

Embodiments are also described with reference to Figs.

The nozzle 117 forms a nozzle inlet 117-10, which is a large-diameter fluid passage, below the inner central portion, and gradually reduces the circular cross-sectional area on the upper portion of the nozzle inlet 117-10, which is a large-diameter fluid passage. The in-nozzle outlet 117-1 is formed, a tubular tapered male thread 117-9 is formed on the longitudinal lower outer peripheral surface, and a lock nut coupling male thread portion 117- is formed on the upper outer peripheral surface of the tubular tapered male thread 117-9. 8) and a first outer circumferential surface 117-7 is formed on the upper portion of the lock nut coupling male thread portion 117-8 to match the outer diameter of the lock nut coupling male thread portion 117-8, and the first The second outer circumferential surface 117-5 is formed to protrude above the outer circumferential surface 117-7, and the third outer circumferential surface (117-5) is smaller than the outer diameter of the second outer circumferential surface 117-5 on the upper portion of the second outer circumferential surface 117-5. 117-4, a fourth outer circumferential surface 117-3 is formed on the third outer circumferential surface 117-4, which is smaller than the outer diameter of the third outer circumferential surface 117-4, and a fourth outer circumferential surface 117-3. In the upper part of the fourth fourth The fifth outer peripheral surface 117-2 is formed smaller than the outer diameter of the main surface 117-3, and the actuator is inserted through the left side of the upper end surface of the third outer peripheral surface 117-4 and the lower end of the second outer peripheral surface 117-5. A hole 117-11 is formed, an O-ring groove 117-12 is formed in the fourth outer circumferential surface 117-3, and a second outer circumferential surface (left and right sides of the upper end surface of the fourth outer circumferential surface 117-3) A flame penetrating through the lower end of the 117-5 to form the electrode insertion hole 117-6, and penetrates the lower end of the second outer peripheral surface 117-5 behind the upper end of the fourth outer peripheral surface 117-3. The material of the nozzle 117 in which the eye insertion holes 117-13 are formed may be made of stainless steel or a material having heat resistance of stainless steel or higher, and suitable for contact fluid, and the nozzle 117 should be used. It is a conduit for discharging the fluid flowing into the nozzle inlet 117-10 to the nozzle outlet 117-1, and converts the pressure energy of the fluid into velocity energy and is installed at the top of the nozzle 117. The pressure inside the ballast 101 becomes negative pressure, and air is supplied by the air intake holes 101-1, 101-2, 101-3, and 101-4 of the flame stabilizer 101 and the air intake holes 101-1, 101-2, 101-3, and 101-4. Inhalation into the flame stabilizer 101 and mixing with the fluid ejected from the nozzle outlet 117-1 promotes combustion to increase the temperature of the flame and prevents the flame from being bent by the wind. In other words, temperature is a measure of the intensity of thermal movement of molecules, and the average kinetic energy of gas molecules is proportional to the absolute temperature, and the average velocity of hydrogen molecules is 1,800 [m / sec] at 0 [℃] and 2,150 at 100 [℃]. [m / sec]. Oxygen-acetylene flame in the oxygen-acetylene torch used in gas welding is slightly burned after opening the acetylene valve and ignited with an ignition lighter. Adjust the valves individually to adjust the neutral flame to the appropriate size. At this time, the flame temperature is low in the carbonized flame state, so the length of the flame is long and the wind is bent, but in the state of neutral flame, the flame temperature is high and the length of the flame is short and it is not easily bent in the wind. In other words, as the temperature of the combustion gas discharged from the flame stabilizer 101 by the nozzle 117 and the flame stabilizer 101 increases, the average velocity of the combustion gas molecules increases, so that the combustion gas does not bend in the wind. When the diameter of the nozzle outlet 117-1 is set to 4 [mm] and the propane gas from the propane container is ejected at an atmospheric temperature of 20 [° C.] without a decompression device, the air intake from the flame stabilizer of the general torch lamp is applied to the flame stabilizer. Air at the bottom of the flame stabilizer 101 and at the air intake holes 101-1, 101-2, 101-3, 101-4 of the flame stabilizer 101 to the inside of the flame stabilizer 101. When inhaled and burned, white flaming flames were generated, so the flames were not easily bent in the wind.

The O-ring 104 is inserted into the O-ring groove 117-2 of the fourth outer circumferential surface 117-3 of the nozzle 117 and is disposed between the fourth outer circumferential surface 117-3 and the translucent cap 102. To keep the flammable gas and water from penetrating the inside of the translucent cap 102, the airtightness is maintained and the material is suitable for rubber or contact fluid, but if the arc lamp flamethrower is operated, stop the O-ring ( 104 is a consumable to be replaced.

The insulator 116 is inserted into the ignition electrode insertion hole 117-6 of the nozzle 117, and the material is one having a maximum allowable temperature of 180 [° C.] or more, such as raw mica, asbestos, porcelain, and the like. The outer circumferential surface of the circumferential surface) is applied to the ignition electrode insertion hole 117-6 after applying an adhesive, and is for insulation to block the flow of electricity between the ignition electrode 103 and the nozzle 117.

The ignition electrode 103 is inserted into and adhered to the center of the insulator 116 and is made of stainless steel or brass to ignite the combustible gas ejected from the nozzle outlet 117-1 of the nozzle 117. An arc was continuously generated for 24 hours to prevent ignition failure.

The flame eye 118 is inserted into the flame eye insertion hole 117-3 of the nozzle 117, and the flame eye uses a phototube to transmit a light detection signal to the flame eye relay 124. When the arc light generated by the electrode 103 touches, a photocurrent caused by electrons emitted from the cathode of the phototube flows, which is amplified by the flame eye relay 124 and the flame eye relay 124 is operated to operate the flame eye relay b contact 124. -1) is opened and the buzzing of the buzzer 126 is stopped. In addition, if the arc does not occur in the ignition electrode 103, that is, if the flame eye 118 does not detect the arc light, the flame eye relay 124 returns and the flame eye relay b contacts 125 closes the flame eye relay b. The buzzer 126 connected in series with the contact 124-1 will be bright. In other words, the flame eye 118 is used for detecting the arc of the ignition electrode 103, and the flame eye 118 is sometimes deteriorated with blue light. At this time, when the spacing of the electrodes of the ignition electrode 103 is reduced, blue arc light is generated, and when the spacing of the electrodes is enlarged, scarlet arc light is generated. That is, the distance between the electrodes should be adjusted so that no abnormality occurs in the performance of the flame eye 118.

The actuator 115 is inserted into the actuator insertion hole 117-11 of the nozzle 1170, and the actuator 115 refers to a portion that detects a mechanical input of the b-contact limit switch 113, and of the nozzle 117 When the translucent cap 102 is inserted into the fourth outer circumferential surface 117-3, the lower end of the protrusion 102-1 of the translucent cap 102 presses the actuator 115 and the b contact limit switch 113 is opened. At this time, even if the hand is removed from the translucent cap 102, the translucent cap 102 is in close contact with the O-ring 104 inserted into the O-ring groove 117-2 of the fourth outer circumferential surface 117-3 of the nozzle 117. B contact limit switch 113 is kept open, but when the combustible gas is ejected from the nozzle outlet 117-1 of the nozzle 117, the translucent cap 102 is released by the pressure of the combustible gas. The b contact limit switch 113 returns and closes, and the bell 123 connected in series to the b contact limit switch 113 is moved. Departure from the arclamp flamethrower of 102 indicates the operation of the arclamp flamethrower, ie the bellows 123 of the bell warns of an emergency, the outer diameter of the actuator 115 being the nozzle 117. The inner diameter of the actuator insertion hole 117-11 is less than 0.0001 [mm] or less than 0.0005 [mm], and grease is applied to the outer circumferential surface of the actuator 115, and the actuator insertion hole 117-11 of the nozzle 117 is applied. ) To prevent rainwater and combustible gas from entering the actuator insertion hole 117-11 from penetrating into the moisture proof box 112.

The flame stabilizer 101 is installed above the nozzle 117 and forms a plurality of air suction holes 101-1 on the left side of the short pipe, and a plurality of air suction holes 101-2 on the right side of the short pipe. And a flame stabilizer (101) having a plurality of air suction holes (101-3) formed on a front surface of the short pipe, and a plurality of air suction holes (101-4) formed on a rear surface of the short pipe. The inside of the flame stabilizer 101 becomes negative pressure due to the combustible gas ejected from the nozzle outlet 117-1 of the lower portion of the flame stabilizer 101 and the air suction holes 101-1 and 101- of the flame stabilizer 101. 2, 101-3, 101-4 intake air into the flame stabilizer 101 and mix with combustible gas ejected from the nozzle outlet 117-1 to promote combustion to increase the temperature of the flame and flame It is possible to control the direction of heat release in the arc lamp flamethrower by preventing it from being bent by wind. If the direction of heat emission can be adjusted, even if a high-rise building is located adjacent to the place where the arc lamp-type flamethrower is installed, the arc-lamp-type flamethrower operates and there is no damage such as a fire in the high-rise building even if heat emission starts. The material of flame stabilizer 101 is made of stainless steel or brass but suitable for the contact fluid.

The flame stabilizer left pedestal 114 and the flame stabilizer right pedestal 109 bend the square bar at a right angle, and one end thereof is curved to closely contact the left side of the second outer peripheral surface 117-5 of the nozzle 117 ( 114-1), arc surface 114-2 and curved portion 114-1 and second outer circumferential surface 117-5, arc end 114 with the other end and the lower end of flame stabilizer 101 -3) one side of the flame stabilizer 101, the left pedestal 114 and the square bar is bent at a right angle, one end of the curved portion 109 in close contact with the right side of the second outer peripheral surface (117-5) of the nozzle 117 -1), arc-welding 109-2 on the curved portion 109-1 and the second outer circumferential surface 117-5, and a ring insertion hole 109-3 on the right side thereof, and the other end And the flame stabilizer right foot 109 of the lower end of the flame stabilizer 101 and the arc welder 109-4 serves to fix the flame stabilizer 101 to the upper portion of the nozzle 117. The material is made of stainless steel or Use brass but brass In this case, the arc welding 114-2, 114-3, 109-2, 109-4 should be gas welding.

The translucent cap 102 is inserted into the fourth outer circumferential surface 117-3 of the nozzle 117 and has a projection 102-on the outer circumferential surface of the lower portion of the cylinder in a cylinder whose bottom surface is open to the atmosphere to form an empty space therein. 1) and the translucent cap 102 having the ring insertion hole 102-2 formed in the protrusion 102-1 has the upper ignition electrode 103 of the nozzle outlet 117-1 of the nozzle 117. ), The arc is continuously generated for 24 hours, and there is a waterproof and explosion-proof function to prevent the occurrence of fire by preventing external combustible gas and rain water from contacting the nozzle outlet 117-1 and the ignition electrode 103. . In addition, in the translucent cap 102 inserted into the nozzle 117, the ignition electrode 103 on the nozzle 117, and the fourth outer circumferential surface 117-3 of the nozzle 117, the translucent cap 102 is provided. Arc lamps become arc lamps due to the arc discharge occurring 24 hours inside the arc lamps, and the arc lamp flamethrowers should be installed at the highest place in the site. The lighting of the arc lamp of the radiator can be confirmed. The lighting of the arc lamp has a display function of indicating that the arc generating circuit is normal in the arc lamp flamethrower control circuit (Fig. 8). In other words, regardless of knowledge, anyone with normal eyesight has the effect of being a watchdog who monitors the presence of an abnormal arcing circuit. In addition, when the combustible gas is ejected from the nozzle outlet 117-1 of the nozzle 117, the translucent cap 102 is separated by the pressure of the combustible gas, and the combustible gas flows into the flame stabilizer 101. The material of the translucent cap 102 uses a plastic with UV protection.

The chain 119 is inserted into the ring 108 inserted into the ring insertion hole 109-3 of the flame stabilizer right foot 109 and the ring insertion hole 102-2 of the translucent cap 102. When the flammable gas is ejected from the nozzle outlet 117-1 of the nozzle 117 by forming a plurality of metal rings connecting the ring 105, the translucent cap 102 is formed by the pressure of the flammable gas. It is for preventing falling to the ground to prevent the falling and falling to the ground when it is separated from the (117).

The moisture proof box 112 is inserted into the first outer circumferential surface 117-7 of the nozzle 117 to be in close contact with the lower end of the second outer circumferential surface 117-5 so that the upper surface is opened to the atmosphere and the empty space therein. The O-ring groove 112-1 is formed in the cylinder surface in the cylinder which forms the shape, and the 1st outer peripheral surface 117-7 and the insertion hole 112-2 of the said nozzle 117 are formed in the inner center part of the cylinder. An O-ring groove 112-3 is formed inside the first outer circumferential surface insertion hole 112-2 of the nozzle, and next to the first outer circumferential surface insertion hole 112-2 of the nozzle so as to be eccentric with the center of the cylinder. The moisture proof box 112 having the female threaded portion 112-4 for conduit connection is equipped with an ignition transformer 107 and a b contact limit switch 113 therein, and an ignition electrode 103 and a flame eye ( 118), the wires of the ignition transformer 107 and the b contact limit switch 113 are to be made in a moisture proof box, and the material of the moisture proof box 112 is made of stainless steel or brass. The.

The O-ring 106 is inserted into the O-ring groove 112-1 of the upper surface of the moisture-proof box 112, and prevents moisture and flammable gas from penetrating into the moisture-proof box 112, the material is rubber Use

The O-ring 111 is inserted into the O-ring groove 112-3 inside the first outer circumferential surface insertion hole 112-2 of the nozzle of the moisture-proof box 112, moisture and flammable gas is moisture-proof box ( It is prevented from penetrating the inside of 112 and the material is rubber.

The lock nut 110 is coupled to the lock nut coupling male thread part 117-8 of the nozzle 117 and inserted into the O-ring groove 112-1 of the upper surface of the moisture proof box 112 ( 106 is in close contact with the lower end of the second outer peripheral surface (117-5) of the nozzle 117 to prevent moisture and flammable gas from penetrating the interior of the moisture-proof box 112, the material is stainless steel or brass.

The arc lamp flamethrower control circuit includes an uninterruptible power supply 122, an arc generator circuit, an operation alarm circuit of the arc lamp flamethrower, and a failure alarm circuit of the arc generator circuit.

The uninterruptible power supply 122 is a device for supplying power to the load continuously through the inverter 132 from the storage battery 125 when the AC input power 120 or the generator is a power source of the load in normal times. The configuration of the uninterruptible power supply 122 changes the circuit breaker 130, the input transformer 128, and the AC input power 120 of the AC input power 120 of the uninterruptible power supply 122 into DC input power. The rectifier and charger unit 131 for charging the battery 124 in a high quality state, the inverter unit 132 for converting DC power into high quality AC power, the output transformer 129 and the inverter unit 132 Synchronous transfer switch unit 134 for switching to the preliminary commercial power supply 127 in case of overload and abnormality, the battery 125 connected to the outputs of the rectifier and charger unit 131, and the DC input power supply of the battery 125 And a circuit breaker 133 and an output 121 of the uninterruptible power supply 122.

The uninterruptible power supply 122 is installed in the main office where people are constantly working and installed in the LPG tank lorry, which is a storage tank fixed to a vehicle, is installed at the rear of the driver's seat, and the inverter unit in case of power failure in the uninterruptible power supply 122. The battery 125, which supplies DC power to (INVERTER) and supplies power uninterruptively to the load for a predetermined time, adjusts the voltage generated from the generator installed in the vehicle by adjusting the voltage regulator to store the automotive battery that is being charged by the constant voltage charging method. As the battery 125 for the uninterruptible power supply and the output of the generator, the LPG tank lorry must be able to supply sufficient load current while driving and the current required to keep the battery 125 fully charged, but the arc generating circuit is added as a load. If the installed state and the discharge amount is larger than the charge amount, the battery 125 is discharged, the lead-acid battery Since the specific gravity of the electrolyte decreases, the specific gravity is measured regularly, and when the value is less than 1.220 (20 ℃), it should be charged immediately.The method of charging is to charge a relatively short time with a large current in a short time using a rapid charger. In this case, the vehicle generator capacity should be increased. In addition, while the LPG tank lorry is parked in the LPG charging station, the AC input power supply 120 of the uninterruptible power supply 122 must be supplied.

The arc generating circuit connects the primary side of the ignition transformer 107 to the output 121 of the uninterruptible power supply and connects the ignition electrode 103 to the secondary side of the ignition transformer 107. When the translucent cap 102 is released from the flammable gas by the pressure of the flammable gas, the flammable gas is ejected. If the flammable gas has a greater specific gravity than the air, the flame falls to the ground and a fire occurs, and the specific gravity is smaller than the air. Even in the case of LNG, the ignition failure should never occur when the flammable gas is ejected from the arc lamp flamethrower because the fire occurs by spreading horizontally even when the wind blows or the temperature is low. For this reason, the ignition electrode 103 is allowed to generate an arc for 24 hours, and, for example, the LPG filling station by the translucent cap 102, the ignition electrode 103 inside the translucent cap 102 at any position in the site. ), You can see that the arc is occurring, that is, the lighting of the arc lamp, and the residents around the LPG charging station can also check the lighting of the arc lamp at any time. In addition, on December 2, 1984, MIC, a toxic substance in central India, flowed out of the flare stack without being burned to the outside, causing more than 2,000 fatalities and more than 5,000 fatal injuries. Residents living in D will instinctively monitor the lighting and extinguishing of arc lamps under threats to property and life.

The operation alarm circuit of the arc lamp flamethrower uses the b contact limit switch 113 and the bell 123 connected in series to the output 121 of the uninterruptible power supply, so that the protrusion 102 of the translucent cap 102 is normally used. The lower end of -1) presses the actuator 115 of the b contact limit switch 113 and the b contact limit switch 113 is opened. However, when the translucent cap 102 is released due to the pressure of combustible gas in the arc lamp type flamethrower, the b contact limit switch 113 returns and closes and is connected to the bell 123 connected in series to the b contact limit switch 113. The current flows into the bell 123, and the bell 123 must be installed in the main office where the person is constantly working so that evacuation and fire suppression can proceed quickly. The b contact limit switch 113 is opened by pressing the actuator 115 using the spring push button type limit switch, and should be used to return by the force of the spring when the actuator is released.

The fault alarm circuit of the arc generating circuit connects an AC power input terminal of the flame eye relay 124 to an output 121 of the uninterruptible power supply, and a flame eye 118 to a detection circuit terminal of the flame eye relay 124. And the flame eye relay b contact 124-1 and the buzzer 126 are connected in series to the output 121 of the uninterruptible power supply, so that the ignition electrode 103 inside the translucent cap 102 is connected. If an arc is generated and the arc lamp is turned on, the arc generating circuit is normal. If the arc lamp is off, the arc generating circuit is broken. However, if the arc lamp cannot be monitored with the naked eye for 24 hours and the arc lamp goes out, it is necessary to immediately alert and recover to normal. In boilers, the flameeyes can detect the flames in the burner, but they are kept at a considerable distance from the ignition electrodes and cannot detect arcs at the ignition electrodes. However, in the fault alarm circuit of the arc generating circuit, the flame eye 118 is close to the arc generating part of the ignition electrode 103 to detect the arc generation. The flame eye relay 124 and the buzzer 126 are installed together with the bell 123 in the main office where a person is constantly working.

② The usage of arc lamp type flamethrower is as follows.

1. Before explaining how to use the arclamp flamethrower, the basic theory will be explained.

※ If LPG storage tank is installed underground, spring type safety valve does not work in case of fire. The vapor pressure of propane at 30 [° C] is 9.9 [Kg _f / cm ² ], the vapor pressure of butane at 30 [° C] is 2.3 [Kg _f / cm ² ], and the set pressure of the spring type safety valve is 18 [Kg _f / cm ² ]. In case of fire in the upper part of the storage tank, cold air flows into the top of the storage tank due to convection to prevent overheating of the storage tank, and the LPG liquid is cooled by the absorption of latent heat of evaporation of LPG vapor from the storage tank. The upper part of the storage tank is cooled by the LPG vapor flowing out of the. When LPG liquid is cooled, it prevents excessive rise of LPG vapor pressure and prevents excessive rise of LPG vapor pressure by the thermal insulation effect in the ground. I never do that. This can be seen from the fact that the spring-type safety valve, the main safety valve of the storage tank, does not operate at the fire site.

However, the fact that the storage tank does not explode does not cause any problems, and radiant heat from the upper flame of the storage tank, heat absorption from the atmosphere, and heat absorption from the ground provide sufficient latent heat for evaporation of LPG liquid in the storage tank. The formation of a large flame on the top of the tank has the problem of enveloping adjacent buildings in flame and promoting the explosion of the tank lorry adjacent to the storage tank. The point here is that in order to prevent the explosion of the storage tank, it is necessary to prevent the internal pressure of the storage tank from rising so that the spring type safety valve does not operate. In other words, the storage tank does not explode unless the spring-loaded safety valve is in operation.

※ The expansion rate according to the temperature change of LPG liquid is about 20 times that of propane and about 9 times that of normal butane, and when the liquid ratio of normal butane is 100 [%] at 15 [℃], it is 103 [ %], 110 [%] at 60 [° C]. The safety guarantee temperature of the disposable gas lighter is indicated at 55 [° C]. This is a temperature that can be displayed when the disposable gas lighter does not explode even at least 60 [° C]. When the air temperature is about 19 [℃], the height of the liquid column of disposable gas writer is 41 [mm], and the height of the gas phase space is 10 [mm]. When water is boiled in the coffee pot, it reaches 100 [℃]. When the disposable gas writer is put into the coffee pot, after 6 seconds, the gas leaks from the nozzle of the gas writer to form a gas bubble, which starts to rise above the surface. After the height of the liquid column rises about 1.5 [mm], the gas writer explodes. The explosion takes about 10 seconds. Here, when the normal butane of 19 [℃] rises to 60 [℃], the height of the liquid column in the gas writer should be increased by about 3 [mm]. do. In other words, due to the natural convection of normal butane liquid, the temperature of the upper normal butane liquid in the gas writer is high and the temperature of the lower normal butane liquid in the gas writer is low. It is determined by the temperature of normal butane liquid, not by the average temperature of normal butane liquid above and below. The point here is that in order to prevent the explosion of gas lighters, the temperature of the upper liquid level of the gas lighter must be lowered to lower the vapor pressure of the butane butane, that is, the upper liquid level of the LPG storage tanks to prevent the explosion of the LPG storage tanks on the ground. The LPG vapor pressure must be lowered by lowering the temperature of the spring, but the spring type safety valve has a set pressure of 18Kg _f / cm ^2, so it is not possible to lower the temperature of the upper liquid level of the LPG storage tank in case of fire.

※ If the propane liquid temperature reaches 45 [℃] in case of fire at 15 [℃], the liquid capacity of 90 [%] of LPC storage tank will be 99.99 [%] of the storage tank. The author is Kim Byung-hoo, the signature of Perfect Gas Engineers, published on February 20, 2001, the issuer of the book publishing company, and the 2nd tank lorry on the ground during the explosion of the Bucheon Daeseong Gas Station on September 11, 1998 at 821P. The liquid inside was released through the safety valve and the tank exploded. It should be noted that the LPG in the tank expands to prove that the liquid volume in the storage tank is 100 [%], and the spring-loaded safety valve is installed at the top of the storage tank meteorological section so that the liquid capacity is 100 [. This is because the liquid can be ejected only in the case of%]. The point is that to prevent the LPG storage tank explosion, the liquid tank should not be prevented in case of fire in the storage tank, and the spring type safety valve cannot prevent the liquid tank from occurring in the LPG storage tank.

2. The usage of arc lamp type flamethrower is as follows.

It demonstrates based on attached drawing (FIGS. 10-13). FIG. 10 is a schematic diagram of an underground explosion-type LPG storage tank automatic explosion prevention and removal fire extinguishing facility, FIG. 11 is a schematic diagram of a ground-type LPG storage tank automatic explosion prevention and removal fire extinguishing facility, and FIG. 13 is an LPG storage tank of an LPG package tank system. Automatic explosion prevention and removal fire extinguishing facility system diagram.

※ When the heat-opening valve 202 heats and opens when there is a fire in or around the LPG storage tank 201, the LPC vapor of the LPG storage tank 201 is discharged to the arc lamp flamethrower 203, The translucent cap 102 of the arclamp flamethrower 203 breaks off and is ignited by an arc generated at the ignition electrode 103 for 24 hours to start emitting the flame from the arclamp flamethrower 203. bWhen the contact limit switch 113 returns and closes, an electric current flows in the bell 123, and the bell 123 moves to alert the operation of the arc lamp flamethrower and the LPG storage tank 201 due to absorption of the latent heat of evaporation of the LPG. Outside of the), the water vapor in the air is condensed and frozen and attached to the surface of the LPG storage tank 201 in the frost state to prevent the drop in tensile strength due to the flame of the LPG storage tank 201, LPG storage tank 201 Inside of the arclamp flamethrower (203 The pressure equalization between the atmosphere and the LPG storage tank 201 proceeds to obtain a low evaporation temperature and a large evaporation latent heat close to the atmospheric pressure, so that the temperature and pressure drops sharply, and the flame outside the LPG storage tank 201 decreases rapidly. The phenomenon that the flame is extinguished is to prevent and extinguish the explosion of the LPG storage tank 201, at this time the spring-type safety valve 204 does not operate. This is because the internal pressure of the LPG storage tank 201 is maintained at a pressure close to atmospheric pressure.

※ When there is no fire in the LPG storage tank 201 or its surroundings, the arc lamp flame thrower 203 is turned on for 24 hours by the arc generated from the ignition electrode 103 and the ignition electrode ( If the arc does not occur in 103, the flame eye relay 124 is returned, the flame eye relay b contact 124-1 is closed and a current flows through the buzzer 126 so that the buzzer 126 is movable and the arc lamp flamethrower By turning off (203), the failure of the arc generating circuit can be confirmed visually. In addition, even during a power failure, the control circuit of the arc lamp flamethrower 203 may operate normally by the uninterruptible power supply 122.

This will be described with reference to the accompanying drawings (Figs. 14 to 17). 14 is a schematic diagram of an automatic explosion prevention facility for decompression open-type large-scale flammable gas storage tanks, and FIG. 15 is a schematic diagram of an automatic explosion prevention facility for pressurized open-type large-capacity flammable gas storage tanks, and FIG. Is a power cut-off circuit diagram by the b contact pressure switch.

※ When the operation air pressure is charged to the compressed air engine 303 through the hose valve 305, when the combustible gas storage tank 302 or the fire occurs, the closed sprinkler head 301 heats up. When opened, the operating air pressure charged in the compressed air engine 303 is released, and when the operating air pressure is lost in the cylinder or the diaphragm operated valve, the pressure reducing open valve 304 is opened to operate, and the thermosensitive valve 202 is opened. When the heat is opened and the pressure is opened, the pressure-opening valve 306 is opened by the operating air pressure filled in the compressed air engine 303, and the pressure-opening valve 306 opens the valve when the operating air pressure is supplied from the cylinder or the diaphragm valve. Says the valve.

When the decompression open valve 304 or the pressurization open valve 306 is opened, the combustible gas of the combustible gas storage tank 302 is discharged to the arc lamp flamethrower 203, and the flame is discharged from the arc lamp flamethrower 203. When it starts to spin, the temperature and pressure of the flammable gas storage tank 302 drops sharply, and when the flammable gas is butane, the diameter of the nozzle outlet 117-1 of the arc lamp flame thrower 203 is set to a large diameter. Within 10 minutes, the scale of the pressure gauge installed in the flammable gas storage tank 302 becomes 0 [Kg _f / cm ² ]. At this time, the spring type safety valve 204 does not operate.

※ When the magnetic contactor is normally urged and the closed sprinkler head 301 or the thermosensitive valve 202 is opened, the a contact pressure switch 307 returns or the b contact pressure switch 308 is opened. The main contact point 402 of the magnetic contactor connected to the secondary side of the parking short circuit 401 is opened to the circuit breaker 404 for the compressor, the submersible pump circuit breaker 405 and the liquid pump breaker 406. Supply is interrupted.

As described above, the present invention provides an O-ring inserted into the O-ring groove 117-2 of the fourth outer circumferential surface 117-3 of the nozzle 117, and the fourth outer circumferential surface 117-3 of the nozzle 117. Even if an arc is generated for 24 hours in the ignition electrode 103 installed inside the translucent cap 102 by the translucent cap 102 inserted into the water, the water splashes or the contact of flammable gas with the outer surface of the translucent cap 102. This does not penetrate into the interior of the translucent cap 102. In the event of a flammable gas leak, the compressor, liquid pump and submersible pump will be shut off and the valves installed on the pipeline will be shut off. This will block the flammable gas outflow and the flammable gas will diffuse into the atmosphere. Therefore, if the concentration of flammable gas in the atmosphere is not within the explosive range, no explosion of flammable gas occurs. That is, although it is possible to cope with the leakage of the flammable gas, it is not necessary to make the fire occur by contacting the flammable gas to the pilot burner installed in the flare stack. For this reason, the arc lamp type flame thrower 203 has a waterproof and explosion-proof function that is not available in a conventional flare stack and a boiler, so that the flame can be discharged at a lower position from the ground than the flare stack.

In addition, the flame in the flare stack may be bent by the wind, and when installed at a low position from the ground, the flame may be adjacent to a high-rise building. However, the arc lamp flame thrower 203 may be installed at the top of the nozzle 117. The air is stabilized by the flame stabilizer 101 and the air by the air intake holes 101-1, 101-2, 101-3, and 101-4 of the flame stabilizer 101 and the flame stabilizer 101. Inhaled inside and mixed with the fluid ejected from the nozzle outlet 117-1 to promote combustion to increase the temperature of the combustion gas discharged from the flame stabilizer 101, so that the average kinetic energy of the gas molecules is commensurate with the absolute temperature When the average velocity of the gas molecules is large, it is not easily bent in the wind, and the direction of the flame discharge in the flame stabilizer 101 is determined by the release of the flame in the flame stabilizer 101 when there is a high-rise building on the left side of the flame stabilizer 101. To The arc lamp type flame thrower 203 has a function to control the direction of flame discharge, such as to prevent fire of a high-rise building by emitting it to the right side of a floor building. It is possible to release the flame and shorten the length of the pipe from the flammable gas storage tank to the arc lamp flamethrower, so that the pressure loss and potential energy difference due to the flow of the combustible gas in the pipe becomes small, so that the pressure inside the flammable gas storage tank It is effective to keep it low.

In addition, the arc lamp type flame thrower 203 is always lit by the arc generated by the ignition electrode 103 installed inside the translucent cap 102 for 24 hours while maintaining the waterproof and explosion-proof functions. If the arc does not occur in the electrode 103, the arc lamp is turned off, and the employee who works at the place where the arc lamp flamethrower 203 is installed and the residents in the neighborhood have a display function that can check the lighting and turn off the arc lamp. There is an effect that a maintenance-free supervisor who monitors the failure of the generation circuit occurs.

In addition, the arc lamp type flame thrower 203 has a flame eye installed in close proximity to the arc generating portion of the ignition electrode 103 when no arc occurs in the ignition electrode 103 installed inside the translucent cap 102. 118, the flame eye relay 124 is returned, the flame eye relay b contact (124-1) is closed, the current flows through the buzzer 126, the alarm function of the buzzer 126 to be alerted to alert the failure of the arc generating circuit This has the effect of alerting the person concerned to the failure of the arcing circuit. In the case of a boiler, if the flame eye 118 is installed to detect an arc generated by the ignition electrode 103, fuel may continue to be supplied even when the ignition electrode 103 does not ignite. Is installed to detect only combustion flames.

In addition, when the flammable gas is discharged from the arc lamp flamethrower 203, the translucent cap 102 is separated and ignited by an arc generated for 24 hours at the ignition electrode 103 to be flamed in the arc lamp flamethrower 203. When the b contact limit switch 113 returns and closes, the current flows through the bell 123 and the bell 123 moves to alert the operation of the arc lamp flamethrower 203. There is an effect of alerting and informing the operation of the arc lamp flamethrower 203.

Claims (1)

A nozzle inlet 117-10, which is a large-diameter fluid passage, is formed below the inner central portion, and a nozzle outlet 117-, which is a fluid ejection outlet that gradually reduces the circular cross-sectional area in the upper portion of the nozzle inlet 117-10, which is a large-diameter fluid passage. 1) to form a tapered male thread 117-9 on the lower peripheral face of the longitudinal direction, and a lock nut coupling male thread portion 117-8 to the upper circumferential surface of the tapered male thread 117-9, A first outer circumferential surface 117-7 is formed on the upper portion of the lock nut coupling male thread portion 117-8 to match the outer diameter of the lock nut coupling male thread portion 117-8, and the first outer circumferential surface 117-7 is provided. The second outer circumferential surface 117-5 is formed to protrude from the upper portion of the second outer surface, and the third outer circumferential surface 117-4 is formed on the upper portion of the second outer circumferential surface 117-5 to be smaller than the outer diameter of the second outer circumferential surface 117-5. The fourth outer circumferential surface 117-3 is formed on the upper portion of the third outer circumferential surface 117-4 and smaller than the outer diameter of the third outer circumferential surface 117-4. Outside of outer peripheral surface (117-3) The fifth outer circumferential surface 117-2 is formed smaller, and the actuator insertion hole 117-11 penetrating the left side of the upper end surface of the third outer circumferential surface 117-4 and the lower end of the second outer circumferential surface 117-5 is formed. In addition, an O-ring groove 117-12 is formed in the fourth outer circumferential surface 117-3, and penetrates the lower end of the second outer circumferential surface 117-5 on the left and right sides of the upper end surface of the fourth outer circumferential surface 117-3. A flame-eye insertion hole 117-13 which forms an ignition electrode insertion hole 117-6 and penetrates the lower end of the second outer circumferential surface 117-5 at the rear of the upper end of the fourth outer circumferential surface 117-3. A nozzle formed with; An O-ring 104 inserted into an O-ring groove 117-12 of the fourth outer circumferential surface 117-3 of the nozzle 117; An insulator 116 inserted into the ignition electrode insertion hole 117-6 of the nozzle 117; An ignition electrode 103 inserted into and in close contact with the center of the insulator 116; A flame eye 118 inserted into the flame eye insertion hole 117-3 of the nozzle 117; An actuator (115) inserted into an actuator insertion hole (117-11) of the nozzle (117); It is installed on the top of the nozzle 117 and forms a plurality of air suction holes 101-1 on the left side of the short pipe, and forms a plurality of air suction holes 101-2 on the right side of the short pipe, and the front surface of the short pipe. A flame stabilizer (101) having a plurality of air suction holes (101-3) formed therein and a plurality of air suction holes (101-4) formed at the rear of the short pipe; A rectangular bar is bent at a right angle, and one end thereof is formed with a curved portion 114-1 to be in close contact with the left side of the second outer circumferential surface 117-5 of the nozzle 117. A flame stabilizer (101) left pedestal (114) which arc-welds (114-2) the outer peripheral surface (117-5), the other end and the lower end of the flame stabilizer (101); A rectangular bar is bent at a right angle, and one end thereof is formed with a curved portion 109-1 to be in close contact with the right side of the second outer circumferential surface 117-5 of the nozzle 117. 2 the outer peripheral surface 117-5 is arc welded 109-2, and a ring insertion hole 109-3 is formed at the right side thereof, the other end and the lower end of the flame stabilizer 101 and the arc weld 109-4 A flame stabilizer right pedestal 109; A ring 108 inserted into the ring insertion hole 109-3 of the flame stabilizer right foot 109; In the cylinder which is inserted into the fourth outer circumferential surface 117-3 of the nozzle 117 and the bottom surface is opened to the atmosphere to form an empty space therein, a protrusion 102-1 is formed on the outer circumferential surface of the lower cylinder, and the protrusion A translucent cap 102 having a ring insertion hole 102-2 formed in 102-1; A ring 105 inserted into the ring insertion hole 102-2 of the translucent cap 102; The ring 108 inserted into the ring insertion hole 109-3 of the flame stabilizer right foot 109 is connected to the ring 105 inserted into the ring insertion hole 102-2 of the translucent cap 102. A chain 119 formed by stitching a plurality of metal rings together; The cylinder is inserted into the first outer circumferential surface 117-7 of the nozzle 117 to be in close contact with the lower end of the second outer circumferential surface 117-5 so that the upper surface is opened to the atmosphere to form an empty space therein. An O-ring groove 112-1 is formed on the upper surface, a first outer circumferential surface 117-7 of the nozzle 117, an insertion hole 112-2 is formed in the inner central portion of the cylinder, and a first outer circumferential surface of the nozzle is inserted. An O-ring groove 112-3 is formed on the inner side of the diaphragm 112-2, and the female thread portion 112 for conduit connection is formed next to the first outer circumferential surface insertion hole 112-2 of the nozzle so as to be eccentric with the center of the cylinder. A moisture proof box (112) forming -4); An O-ring 106 inserted into an O-ring groove 112-1 on the top surface of the moisture-proof box 112; An O-ring 111 inserted into an O-ring groove 112-3 inside the first outer circumferential surface insertion hole 112-2 of the nozzle of the moisture-proof box 112; A lock nut 110 coupled to the lock nut coupling male screw part 117-8 of the nozzle 117 to closely contact the moisture proof box 112 to a lower end of the second outer circumferential surface 117-5 of the nozzle; An ignition transformer 107 mounted inside the moisture proof box 112; A b contact limit switch 113 mounted inside the moisture proof box 1120; An ignition transformer 107 for the uninterruptible power supply 122, the AC input power supply 120 of the uninterruptible power supply 122, the output 121 of the uninterruptible power supply, and the output 121 of the uninterruptible power supply. B contact limit switch 113 and a bell at the output of the uninterruptible power supply, and the arc generating circuit which connects the primary side of the shunt, and connects the ignition electrode 103 to the secondary side of the ignition transformer 107. The flame-eye relay 124 is connected to the operation alarm circuit of the arc lamp type flamethrower which connected 123 in series, and the output 121 of the uninterruptible power supply, and the flame-eye 118 is connected to the flame-eye relay 124. Is connected to the output 121 of the uninterruptible power supply, and the arc lamp flamethrower comprising a failure alarm circuit of the arc generating circuit in which the flame eye relay b contact 124-1 and the buzzer 126 are connected in series. Waterproof and explosion-proof characterized by including a control circuit (Fig. 8) And arclamp flamethrowers with alarm and indication.