KR100827030B1 - Pipe type back fire arrestor for water gas - Google Patents

Abstract

A pipe type backfire arrester for water gas is provided to effectively prevent backfire, directly install the backfire arrester on a pipeline of water gas, filter alien substances such as water and the like contained in water gas, prevent ceramic particle-supporting meshes from slipping within a pipe, prevent deterioration in physical properties of packings or loss in elasticity of a rubber tube due to a flame during backfire, and prevent diffusion of the flame during backfire of the flame. A pipe type backfire arrester for water gas comprises: a first connecting pipe(110) and a second connecting pipe(120) that are connected to a pipeline; a backfire preventing part(130) installed within the first connecting pipe to allow water gas to be supplied in one direction only; and a filter part(140) installed between the first and second connecting pipes to filter alien substances in water gas. The first connecting pipe includes a polygonal body(112) of which an outer side is formed in the form of a polygonal length member, the polygonal body having a female screw part(118) and a male screw part(116) respectively formed on both sides thereof and a through hole(114) formed therein. The second connecting pipe includes a polygonal body(122) of which an outer side is formed in the form of a polygonal length member, the polygonal body having a female screw part(126) formed on both ends thereof and a projecting part(124) formed on an inner part thereof. The backfire preventing part includes a nozzle pipe(132) of which a rear end is opened, of which a front end is closed, which has a nozzle hole(132a) formed in one side of the front end thereof, and of which a rear portion is installed in the through hole of the first connecting pipe, and a rubber tube(134) inserted onto an outer side of the nozzle pipe. The filter part includes a pipe(142) which has a male screw part(142a) formed on both ends thereof and a catching projection(142b) formed on an inner side of one end thereof, ceramic particles(144) filled in the pipe, stainless steel meshes(146) disposed at both sides of the ceramic particles to contain the ceramic particles, and fluoro-rubber packings(148) which have receiving grooves(148a) formed on inner sides thereof to insert the meshes into the receiving grooves, and which support the meshes in the pipe.

Description

Pipe type backfire arrestor for water gas {Pipe type back fire Arrestor for Water Gas}

1 is a block diagram of a conventional watertight flame arrester,

2 is a perspective view of a pipe type flashback preventing device for water gas of the present invention;

3 is an exploded perspective view of a pipe type flashback prevention device for water gas of the present invention;

Figure 4 is a cross-sectional view of the pipe-type backfire prevention device for water gas of the present invention,

5A and 5B are sectional views of the operation of the pipe-type flashback preventing device for water gas of the present invention.

※ Explanation of code for main part of drawing

110: first connector, 112: polygon body, 114: through hole,

116: male part, 118: female part, 120: second connector,

122: polygon body, 124: protrusion, 126: female thread,

130: flashback prevention unit, 132: nozzle tube, 132a: nozzle ball,

134: rubber tube, 140: filter part, 142: tube

142a: male thread portion, 142b: locking jaw, 144: ceramic particles,

146: mesh, 148: packing, 148a: receiving groove

The present invention relates to a water-type pipe backfire prevention device which can be installed directly on a water gas pipe line regardless of an installation place by providing a dry backfire prevention device having a simple configuration.

"Water gas" refers to a gas in which hydrogen and oxygen are mixed in an ideal ratio of 2: 1, which is a mixture of hydrogen and oxygen produced by electrolysis of water, which is completely pollution-free, complete combustion, thermonuclear reaction characteristics, Water gas has unique characteristics such as wave resistance, but is being applied only to some industrial fields.

As is well known, a water gas generator that produces water gas electrolyzes 1 liter of water to produce about 1,860 liters of water gas, while on the contrary, 1,860 liters of water gas is filled in a sealed pressure vessel and burned by sparks. As soon as the pressure peak reaches 0.5 MPa during 44 minutes of explosion duration, it immediately causes a pressure drop, and at the same time as the inner pressure of low pressure, the volume decreases to 1/860 and forms a vacuum level.

In other words, the phenomenon that 1 liter of water is produced again and the remaining volume becomes a vacuum is called implosion, and this implosion is interpreted in a completely different concept from the explosion generated during the combustion process such as LPG fuel. As such, the phenomenon of implosion can be effectively used to prevent backfire by using the watertight flashback prevention principle.

As shown in Fig. 1, the watertight flame retardation principle is constructed so that the water gas flows through the tank containing the liquid to rise to the bubble state and then is supplied to the next step so that the revolving flame cannot pass through the liquid. However, in the case of the existing gas, a large pressure is generated due to the explosion phenomenon, and the liquid is turned upside down so that this watertight backfire principle cannot be used.

On the other hand, in case of water gas, only the sound of "clicking" when backfired and the instantaneous vacuum state does not affect the flow of the gas so that it can be used with peace of mind. It can be said that the use range is infinite because water gas can be applied to the anti-backfire principle.

However, the conventional flashback prevention device using the watertight flashback principle as described above has restrictions on the installation location, such as liquid fluctuations in a place where vibration is severely generated, and requires a lot of space for installation. have.

The present invention is a pipe type flashback prevention device for water gas, which is designed to solve the problems as described above. When the rubber tube is inserted into the outside of the nozzle tube in which the nozzle hole is formed, the rubber tube is moved in the supply direction of the water gas. When the supply pressure decreases, the nozzle hole is opened by increasing the supply pressure. On the contrary, when the supply pressure decreases, the nozzle hole is shielded by the elasticity of the rubber tube, and even when the pressure outside the rubber tube increases due to the backfire of the flame. It is an object of the present invention to provide a pipe-type backfire prevention device for water gas which effectively prevents backfire by being shielded.

In particular, it is an object of the present invention to provide a pipe-type backfire prevention apparatus for water gas that can be installed directly on the water gas pipe line regardless of the installation place by providing a dry backfire prevention apparatus having a simple configuration as described above.

An object of the present invention is to provide a pipe-type backfire prevention device for water gas, by providing a filter unit to filter out foreign substances such as water in the water gas.

In addition, the present invention also provides a pipe-type backfire prevention device for water gas, in which a network disposed on both sides of the ceramic particles for filtering is fixed in the tube by packing to prevent the mesh supporting the ceramic particles from slipping in the tube. There is a purpose.

In addition, it is an object of the present invention to provide a pipe-type backfire prevention device for water gas, in which the packing is made of a fluororubber material and prevents the physical properties of the packing from being deteriorated by a flame when backfired.

On the other hand, the water gas is passed through the gap between the ceramic particles, the water gas is supplied at a constant speed and pressure, and during the backfire of the flame to prevent the spread of the flame by preventing the spread of the flame by allowing the ceramic particles and the network to act as a firewall Its purpose is to provide a type flashback arrestor.

In the present invention, the water-type pipe backfire prevention device comprises a rubber tube covering the outside of the nozzle hole made of fluororubber material, and prevents the elastic force from being lost while the physical properties of the rubber tube are changed by the flame during backfire. The purpose is to provide a flashback protection device.

Pipe-type backfire prevention apparatus for water gas to achieve the above object comprises: a first connection pipe connected to the water gas supply line by forming a through-hole inside; and piped to the water gas supply line together with the first connection pipe A second connection tube connected to the rear end, and a rear end thereof is opened, and a front end thereof is shielded, and a nozzle hole is formed at one end of the nozzle tube, and a rear end thereof is installed in the through hole of the first connection tube, and rubber is inserted into the outside of the nozzle tube. Flashback prevention unit forming a tube; And, it is achieved by providing a pipe-type backfire prevention device for water gas comprising a filter unit for connecting the pipes between the first and the second connecting pipe to filter foreign matter in the gas passing through the inside.

The filter part of the pipe-type backfire prevention apparatus for water gas of the present invention includes a tube body, a plurality of ceramic particles inserted into the inside of the tube body, and a net body inserted into both sides of the ceramic particles to preserve the state of accommodating the ceramic particles. It is desirable to.

The filter unit may further include a packing in close contact with the inside of the tube by forming an accommodating groove for fixing the net body, and the packing is preferably made of a fluororubber material.

On the other hand, the pipe body is formed on the inside of one end of the jaw, the second connecting port connected to the pipe body is a water-type pipe backfire prevention device, characterized in that forming a protrusion.

The rubber tube of the pipe-type backfire prevention apparatus for water gas of the present invention is preferably made of a fluororubber material.

Hereinafter, a preferred embodiment of the pipe-type backfire prevention apparatus for water gas of the present invention will be described in detail with reference to the accompanying drawings.

1 is a perspective view of a pipe-type backfire prevention apparatus for water gas of the present invention, and FIG. 2 is an exploded perspective view of the pipe-type backfire prevention apparatus for water gas of the present invention.

Pipe-type flashback prevention apparatus of this invention as shown in the figure is installed in the 1st connection pipe 110, the 2nd connection pipe 120, and the said 1st connection pipe 110 connected to the piping line (L). To prevent the water gas from being supplied only in one direction, the backfire prevention unit 130 and a filter unit installed between the first connection pipe 110 and the second connection pipe 120 to filter foreign matter in the water gas ( 140).

The first connector 110 has female threads 118 and male threads 114 formed on both sides of the polygonal body 112 having a polygonal length member on the outside thereof, respectively, and the inner side of the polygonal body 112. The through hole 114 is formed.

The second connection pipe 120 has female threads 126 formed at both ends of the polygonal body 122 having a polygonal length member on the outside thereof, and a protrusion 124 is formed on the inside thereof.

The flashback prevention unit 130 has a rear end is opened, the front end is closed and the nozzle hole 132a is formed on one side of the front end so that the rear end is installed in the through hole 114 of the first connection pipe 110, the nozzle tube 132 And a rubber tube 134 inserted into the outside of the nozzle tube 132.

Here, the rubber tube 134 is composed of a fluorine rubber material, such fluorine rubber (Fluoro rubber) is a synthetic rubber, also known as Viton rubber, excellent heat resistance, cold resistance, oil resistance, chemical resistance, Containing 50% or more of fluorine atoms, the physical properties are less deteriorated even under the temperature condition of 200 ° C, and depending on the conditions, it can be applied when exposed to a short time even at 300 ° C or more.

That is, when the water gas is ejected through the nozzle hole 132a in a state where the rubber tube 134 is fitted to the outside of the nozzle tube 132, a portion corresponding to the nozzle hole 132a is extended to allow the water gas to pass therethrough. On the contrary, when the flame is backfired toward the gas supply source, pressure is applied to the outside of the rubber tube 134 so that the rubber tube 132 is in close contact with the nozzle tube 132 to shield the nozzle hole 132a, and the rubber tube of rubber material. Since 134 shields the nozzle hole 132a by its elasticity, the back flow of the flame is prevented.

The filter unit 140 is a tubular body 142 having male threads 142a formed at both ends and a locking jaw 142b formed at one end thereof, and ceramic particles 144 being filled into the tubular body 142. ), A stainless steel mesh 146 disposed on both sides of the ceramic particles 144 and the accommodating groove 148a into which the mesh 146 is inserted in order to preserve the accommodating state of the ceramic particles 144. It is configured to include a fluorine rubber packing 148 formed on the inside to support the network 146 in the tube 142.

The ceramic particles 144 of the filter unit 140 are divided into predetermined regions, and are divided into a plurality, and the net 146 is disposed between the regions.

Therefore, as the water gas passes between the ceramic particles 144 of the filter unit 140, foreign substances such as moisture included in the water gas are adsorbed to the ceramic particles 144, thereby improving combustion efficiency of the water gas.

In addition, the water gas is supplied at a constant speed and pressure as the water gas passes through the gaps between the ceramic particles 144, and when the flame is backfired, the ceramic particles 144 and the mesh 146 serve as a firewall, so Diffusion is prevented.

Hereinafter, the coupling and action of the pipe-type backfire prevention device for water gas of the present invention having the above configuration will be described.

4 is a cross-sectional view of a pipe type flashback prevention apparatus for water gas of the present invention.

Referring to the drawings, the male screw portion 116 formed on one side of the first connection pipe 110 is assembled into the water gas supply pipe line L, and the through hole 114 formed inside the first connection pipe 110. The back end of the nozzle tube 132 of the flashback prevention unit 130 is fixedly installed, and the rubber tube 134 of the fluororubber material is inserted into the outside of the nozzle tube 132 so that the nozzle of the nozzle tube 132 is inserted into the nozzle tube 132. The ball 132a is elastically shielded.

In addition, any one male screw portion 142a of the male screw portion 142a formed at both ends of the female screw portion 118 of the first connecting pipe 110 is formed at both ends of the pipe body 142 of the filter portion 140. .

In the tube 142 of the filter unit 140, the packing 148 into which the mesh 146 is inserted into the receiving groove 148a is inserted, and then ceramic particles 144 having a predetermined size are inserted into the tube 142. A predetermined amount is filled, and the packing 148 into which the mesh 146 is inserted into the insertion groove is inserted into the tube 142 to preserve the accommodating state of the ceramic particles 144, and the multi-step is performed to improve the filter performance. The ceramic particles 144 are inserted and the mesh 146 and the packing 148 are respectively disposed outside the ceramic particle 144 region to preserve the accommodating state of the ceramic particles 144.

Here, the packing 148 inserted into the rear end side of the tubular body 142 is caught by the catching jaw 142b formed in the rear end inner side of the tubular body 142 to prevent the separation to the first connecting pipe 110.

Then, the female threaded portion 126 of the second connecting pipe 120 is fastened to the male threaded portion 142a formed at the other end of the tubular body 142. At this time, the protrusion 124 formed inside the second connecting pipe 120. The packing 148 and the ceramic particles 144 inserted into the tube 142 are supported by the packing 148 of the other end inserted into the tube 142 on the opposite side of the locking step 142b. This prevents the flow inside.

In particular, since the packing 148 is made of a fluororubber material, slipping in the tubular body 142 is prevented, and durability and lifespan are increased because the packing 148 is not damaged by the flashing flame.

In addition, the filter unit 140 is assembled between the first connecting pipe 110 and the second connecting pipe 120, the outer side of the first connecting pipe 110 and the second connecting pipe 120. Each of the polygonal bodies 112 and 114 having a polygonal length member shape, respectively, is easily disassembled and assembled during replacement and maintenance of the filter unit 140 and the flashback prevention unit 130.

When the water gas pipe line (L) is connected to the female screw portion 126 of the other end of the second connection pipe 120 assembled at the other end of the filter unit 140 as described above, the assembly is completed.

5A and 5B of the accompanying drawings are sectional views of the flashback prevention part 130 of the pipe type flashback prevention device for water gas according to the present invention. Referring to the drawings, the operation of the flashback prevention part 130 will be described with reference to the drawings. As the rubber tube 134 inserted into the nozzle hole 132a of the nozzle tube 132 is elastically increased by the supply pressure of the water gas, the water gas is filtered through the nozzle hole 132a. It is supplied to the part 140 side.

However, if a pressure difference occurs between the supply side and the combustion side of the water gas, for example, by closing the shutoff valve to shut off the water gas supply, the pressure on the supply side (left side in the drawing) decreases and Since the pressure is relatively high, the flame will flash back towards the low pressure supply side.

In this case, when the supply of water gas from the supply side is blocked as shown in FIG. 5B, the rubber tube 134 shields the nozzle hole 132a of the nozzle tube 132 due to the elastic force of the rubber tube 134 made of fluororubber material. (Iii) to prevent the flame from flashing back to the supply side.

In addition, since the pressure applied from the right side of the drawing on the back of the flame pressurizes the outside of the rubber tube 134, the rubber tube 134 is in close contact with the outside of the nozzle tube 132, thereby preventing the flame from backing to the supply side. .

The pipe-type backfire prevention device for water gas of the present invention as described above inserts a rubber tube into the outside of the nozzle tube in which the nozzle hole is formed, and when the rubber tube moves in the supply direction of the water gas, the rubber tube is stretched by the supply pressure. On the contrary, when the supply pressure decreases, the nozzle hole is shielded by the elasticity of the rubber tube, and the nozzle hole is prevented even when the pressure outside the rubber tube increases due to the backfire of the flame. It works.

In particular, by providing a dry flashback prevention device having a simple configuration as described above, there is also an effect that can be installed directly on the water gas pipe line irrespective of the installation place.

The pipe-type backfire prevention apparatus for water gas of this invention has an effect which filters the foreign material, such as water in a water gas, by providing a filter part.

In addition, there is also an effect of preventing the network supporting the ceramic particles from slipping in the tube by allowing the network disposed on both sides of the ceramic particles for filtering to be fixed in the tube by the packing.

In addition, the packing is made of a fluororubber material, there is also an effect of preventing the deterioration of the physical properties of the packing by the flame when backfired.

On the other hand, as the water gas passes through the gaps between the ceramic particles, the effect of providing the water gas at a constant speed and pressure is generated, and the flame is prevented from spreading because the ceramic particles and the network act as a firewall when the flame is backfired. It is effective.

The pipe-type backfire prevention device for water gas of the present invention has a rubber tube covering the outside of the nozzle hole made of fluororubber material to increase durability by preventing the elastic force from being lost while the physical properties of the rubber tube are deteriorated by the flame when backfired. There is.

Claims (6)

A first connection pipe which forms a through hole inside and is connected to a water gas supply line; A second connecting pipe connected to the water gas supply line together with the first connecting pipe; A backfire prevention part having a rear end opening and a front end shielding and forming a nozzle hole at one end of the nozzle, a nozzle tube having a rear end installed in the through hole of the first connecting pipe, and a rubber tube inserted into the outside of the nozzle pipe; And, A pipe-type backfire prevention device for water gas, comprising a filter unit for filtering foreign substances in the gas passing through the pipe by being connected between the first and second connection pipes. The method of claim 1, The filter unit includes a pipe body, a plurality of ceramic particles inserted into the inside of the pipe, and a pipe-type backfire for water gas, characterized in that it includes a net body inserted into both sides of the ceramic particles to preserve the state of accommodating the ceramic particles. Prevention device. The method of claim 2, The filter unit further comprises a packing for forming a receiving groove for fixing the net body on the inner side in close contact with the inside of the tubular pipe-type flashback prevention device. The method of claim 3, wherein The packing is a pipe-type backfire prevention device for water gas, characterized in that the fluorine rubber material. The method according to any one of claims 2 to 4, The pipe body is formed on the inside of one end of the locking jaw, the second connecting port connected to the pipe body is a water-type pipe backfire prevention device, characterized in that forming a protrusion. The method of claim 1, The rubber tube is a pipe-type backfire prevention device for water gas, characterized in that made of a fluorine rubber material.

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