Oil and gas pipeline flame arrester with self-cleaning function

Abstract

The invention discloses an oil and gas pipeline flame arrester with a self-cleaning function, belongs to the field of flame arresters, and can realize that in the use process of the pipeline flame arrester, if inflammable gas in a pipeline is ignited, gas flames can be spread into a flame arresting core base, a first flame arresting core pipe orifice, a second flame arresting core pipe orifice and a third flame arresting core pipe orifice; according to the invention, the generated flame is changed into a plurality of fine flames after passing through a plurality of fine channels which are distributed in a staggered manner, and the flame gradually consumes the combustion energy on the walls of the channels through heat transfer, so that the temperature of the flame is reduced to be below an ignition point, and the flame is prevented from spreading; and the cleaning mechanism adsorbs particle dust and combustion impurities in the pipeline gas and cleans the inner walls of the fire-retardant core base, the first fire-retardant core, the second fire-retardant core and the third fire-retardant core, so that the situation that the channel wall is blocked due to coverage of the combustion impurities after long-time use of the fire-retardant core base, the first fire-retardant core, the second fire-retardant core and the third fire-retardant core is prevented.

Description

Technical Field

[0001] The invention relates to the field of flame arresters, and more particularly to an oil and gas pipeline flame arrester with a self-cleaning function. Background Art

[0002] Flame arresters are designed and manufactured based on the principle that flames are extinguished due to heat loss when passing through the narrow pores of a heat conductor. The flame barrier layer structure of the flame arrester includes gravel type, wire mesh type or corrugated type. It is suitable for combustible gas pipelines, such as gasoline, kerosene, light diesel, benzene, toluene, crude oil and other oil storage and filling or flare systems, gas purification and ventilation systems, gas analysis systems, coal mine gas emission systems, heating furnace fuel gas pipelines, and can also be used in acetylene, oxygen, nitrogen, and natural gas pipeline products.

[0003] At present, during the use of flame arresters, flames may occur inside the pipeline due to the combustion of internal gas under high temperature. The flame can be blocked by the flame arrester to prevent it from spreading further. However, in current technology, after each fire-blocking operation, some post-combustion impurities will be attached to the inner wall or surface of the fire-blocking core inside the flame arrester. After long-term use, the surface or inner wall of the fire-blocking core will be blocked, so that it cannot be used again. The flame arrester needs to be disassembled and then its fire-blocking core needs to be flushed, which makes the working steps more cumbersome and also reduces the working efficiency. Summary of the invention

[0004] 1. Technical issues to be solved

[0005] In view of the problems existing in the prior art, the purpose of the present invention is to provide an oil and gas pipeline flame arrester with a self-cleaning function, which can realize that when the pipeline flame arrester is in use, if the flammable gas inside the pipeline is ignited, the gas flame will spread to the flame arrester core base, the first flame arrester core, the second flame arrester core and the third flame arrester core pipe mouth, and the generated flame will become a number of small flames after passing through a plurality of staggered small channels, and the flame will gradually consume the energy of combustion on the channel wall through heat transfer, so that the flame temperature drops below the ignition point, preventing the occurrence of flame spread, and in the process of flame burning, the cleaning mechanism will adsorb the particulate dust and combustion impurities inside the pipeline gas, and clean the inner walls of the fire arrester core base, the first fire arrester core, the second fire arrester core and the third fire arrester core to prevent the channel wall from being blocked due to the coverage of combustion impurities under long-term use.

[0006] 2. Technical solution

[0007] To solve the above problems, the present invention adopts the following technical solutions.

[0008] A flame arrester for an oil and gas pipeline with a self-cleaning function comprises a flame arrester, wherein two symmetrical flanges are fixedly connected to the outer end of the flame arrester, a flame arrester core base is fixedly connected between the inner walls of the flame arrester, a first flame arrester core, a second flame arrester core and a third flame arrester core are arranged between the inner walls of the flame arrester core base, the first flame arrester core is located on the left side of the second flame arrester core, the second flame arrester core is located on the right side of the third flame arrester core, threaded rods are inserted into the flame arrester core base, the first flame arrester core, the second flame arrester core and the third flame arrester core, a fixing nut is threadedly connected to the outer end of the threaded rod, the fixing nut is located on the right side of the third fire arrester core, a cleaning mechanism is arranged between the flame arrester core base, the first flame arrester core, the second flame arrester core and the inner walls of the third fire arrester core, and when the pipeline flame arrester is in During use, if the flammable gas inside the pipeline is ignited, the gas flame will spread to the fire barrier core base, the first fire barrier core, the second fire barrier core and the third fire barrier core pipe mouth. The generated flame will become several small flames after passing through multiple staggered small channels. The flame gradually consumes the energy of combustion on the channel wall through heat transfer, thereby reducing the flame temperature to below the ignition point and preventing the spread of flame. In the process of flame burning, the cleaning mechanism will adsorb the particulate dust and combustion impurities inside the pipeline gas, and clean the inner walls of the fire barrier core base, the first fire barrier core, the second fire barrier core and the third fire barrier core to prevent the channel wall from being blocked due to the coverage of combustion impurities under long-term use.

[0009] Furthermore, the cleaning mechanism includes a plurality of cleaning balls provided on the inner walls of the fire-blocking core base, the first fire-blocking core, the second fire-blocking core and the third fire-blocking core, the outer ends of the cleaning balls are provided with a plurality of evenly distributed fine through holes, the outer ends of the cleaning balls are provided with a plurality of evenly distributed adsorption holes, the adsorption holes are located on the outsides of the fine through holes, sealing sheets are embedded between the inner walls of the adsorption holes, an adsorption mechanism is provided in the cleaning ball, and an anti-adhesion mechanism is provided on the outer ends of the cleaning balls, when the flammable gas inside the pipeline is ignited and the gas flame propagates to the inside of the fire-blocking core base, the first fire-blocking core, the second fire-blocking core and the third fire-blocking core pipe openings, the cleaning ball shakes under the flow of gas and interacts with the fire-blocking core base, the first fire-blocking core, the second fire-blocking core and the third fire-blocking core. Friction is performed between the fire core and the third fire-blocking core, and the combustion impurities adsorbed on the surface are wiped and adsorbed. At the same time, under the action of the fine through holes, some combustion impurities during gas combustion are also adsorbed, thereby avoiding the fire-blocking core base, the first fire-blocking core, the second fire-blocking core and the third fire-blocking core channel wall being blocked due to excessive adsorption of combustion impurities. In addition, during the ignition of the gas, due to the action of high temperature, the sealing sheet is deformed and shrinks inward due to the heat, and the adsorption holes are in a flow state at this time, so that some combustion impurities in the gas can be stored inside the cleaning ball, avoiding excessive combustion impurities inside the flame arrester and on the surface of the fire-blocking core base, the first fire-blocking core, the second fire-blocking core and the third fire-blocking core.

[0010] Furthermore, the adsorption mechanism includes a dust absorption pad arranged in the cleaning ball, the inner wall of the dust absorption pad is fixedly connected with a fiber layer, a plurality of evenly distributed fiber ropes are fixedly connected between the fiber layer and the inner wall of the dust absorption pad, a plurality of evenly distributed traction ropes are fixedly connected between the cleaning ball and the inner wall of the dust absorption pad, a light contact layer is fixedly connected to the inner wall of the fiber layer, a magnet is arranged in the light contact layer, and a secondary adsorption mechanism is arranged at the outer end of the dust absorption pad. When part of the combustion passes through the adsorption holes to clean the inside of the ball, the dust absorption pad will absorb the combustion impurities entering and adsorb them, so as to prevent the multiple adsorption holes from opening and the adsorption holes below from The gas in the gas will then flow out again, completing the collection of combustion impurities. At the same time, under the action of the fiber rope, the fiber layer gradually absorbs the harmful gas in the gas to the fiber rope, so that the harmful gas spreads throughout the fiber rope, and the light-contact layer on the inner wall purifies the harmful gas. When the gas flame burns in an absolutely magnetic state, the magnet shakes under the action of the airflow, allowing the cleaning ball to absorb combustion impurities. When the flame is not burning, the magnet is in a magnetic state, so it can be absorbed on the surface of the fire-blocking core base, the first fire-blocking core, the second fire-blocking core and the third fire-blocking core, avoiding the phenomenon of gas disorder in the flame arrester.

[0011] Furthermore, the secondary adsorption mechanism includes a plurality of elastic rods fixedly connected to the outer end of the dust absorption pad, the upper end of the elastic rod is fixedly connected to a storage ball, a load-bearing ball is arranged inside the storage ball, a plurality of evenly distributed connecting ropes are fixedly connected between the load-bearing ball and the inner wall of the storage ball, a plurality of evenly distributed storage balls are fixedly connected to the inner wall of the storage ball, the storage ball is located outside the connecting rope, the storage ball is filled with shell powder, a powder outlet hole is drilled at the outer end of the storage ball, a T-shaped hole is drilled at the outer end of the storage ball, the powder outlet hole is connected to the T-shaped hole, when the dust absorption pad completes the adsorption of combustion impurities, Due to the long-term absorption of impurities by the dust suction pad, the adsorption effect of its surface is reduced. At the same time, since the adsorption holes are still in an open and closed state, the elastic rods swing under the flow of gas and the shaking of the cleaning ball, causing the load-bearing balls to swing around the storage balls and squeeze multiple storage balls. As a result, the shell powder inside gradually flows from the powder outlet to the T-shaped hole under the action of pressure and is released to the outside. The combustion impurities that are not absorbed on the outside are absorbed by the shell powder floating in the air and fall on the surface of the dust suction pad, thereby improving its adsorption efficiency for combustion impurities.

[0012] Furthermore, a filter screen is fixedly connected between the inner walls of the T-shaped hole, and the filter screen is made of stainless steel. By setting the filter screen, when the shell powder flows into the inside of the T-shaped hole, the solidified particles are decomposed into powder again under the action of pressure through the filter screen and released at the T-shaped hole, so as to improve the adsorption efficiency of the shell powder on combustion impurities.

[0013] Furthermore, the anti-adhesion mechanism includes a plurality of fixed rods embedded in the outer end of the cleaning ball, the upper end of the fixed rod is fixedly connected to a liquid storage ball, the outer end of the fixed rod is drilled with a emitting hole, the emitting hole is connected to the liquid storage ball, and a barrier sealing piece is fixedly connected between the inner walls of the emitting hole, the barrier sealing piece is located at the lower side of the liquid storage ball, and sodium octadecanoate powder is filled between the liquid storage ball and the barrier sealing piece. When the cleaning ball collides with the inner walls of the fire-blocking core base, the first fire-blocking core, the second fire-blocking core and the third fire-blocking core, the liquid storage ball on its surface first contacts the inner wall, and then Under the action of force, the liquid storage ball is compressed and deformed, thereby shrinking inward, squeezing the sodium octadecanoate powder toward one side of the barrier seal, and the barrier seal is opened and closed due to the extrusion, causing the sodium octadecanoate powder to flow from the emission holes to the inner wall surfaces of the fire-blocking core base, the first fire-blocking core, the second fire-blocking core and the third fire-blocking core, thereby reducing the adhesion of combustion impurities to the inner wall, making it easier for the fine through holes to wipe and absorb impurities on the surface, and reducing the blockage of the fire-blocking core base, the first fire-blocking core, the second fire-blocking core and the third fire-blocking core due to excessive impurities.

[0014] Furthermore, the fire-blocking core base, the first fire-blocking core, the second fire-blocking core and the third fire-blocking core are all staggered, and the metal mesh filter elements of the fire-blocking core base, the first fire-blocking core, the second fire-blocking core and the third fire-blocking core are made of stainless steel with a diameter of 0.23-0.315 mm. By staggering the fire-blocking core base, the first fire-blocking core, the second fire-blocking core and the third fire-blocking core, the gas flame can gradually become smaller when passing through the channel wall of the fire-blocking core base, the first fire-blocking core, the second fire-blocking core and the third fire-blocking core, so that when the burning combustible gas passes through the narrow channel, the collision probability of the free radicals with the channel wall increases, and the free radicals participating in the reaction decrease. When the channel wall is narrowed to a certain extent, the collision between the free radicals and the channel wall dominates. Due to the sharp decrease in the number of free radicals, the reaction cannot continue, that is, the combustion reaction cannot continue to propagate through the flame arrester, thereby greatly reducing the phenomenon of gas flame combustion.

[0015] Furthermore, a plurality of evenly distributed flow direction marking grooves are drilled at the outer end of the flame arrester, and the flow direction marking grooves are consistent with the gas flow direction. By setting the flow direction marking grooves, it is convenient for technicians to know the flow direction of the medium after installing the flame arrester.

[0016] Furthermore, the traction rope is made of activated carbon fiber material. By setting the traction rope made of activated carbon fiber material, the traction rope can have the function of absorbing combustion impurities and harmful gases in addition to the traction function, further enhancing the efficiency of impurity cleaning and the space for storing impurities inside the cleaning ball.

[0017] 3. Beneficial effects

[0018] Compared with the prior art, the advantages of the present invention are:

[0019] (1) This solution can achieve that when the pipeline flame arrester is in use, if the flammable gas inside the pipeline is ignited, the gas flame will spread to the flame arrester core base, the first flame arrester core, the second flame arrester core and the third flame arrester core pipe mouth. The generated flame will become several small flames after passing through a plurality of staggered small channels. The flame gradually consumes the energy of combustion on the channel wall through heat transfer, so that the flame temperature drops below the ignition point, preventing the occurrence of flame spread. During the flame burning process, the cleaning mechanism adsorbs the particulate dust and combustion impurities inside the pipeline gas, and cleans the inner wall of the flame arrester core base, the first flame arrester core, the second flame arrester core and the third flame arrester core to prevent the channel wall from being blocked due to the coverage of combustion impurities during long-term use.

[0020] (2) The cleaning mechanism includes a plurality of cleaning balls provided on the inner walls of the fire-blocking core base, the first fire-blocking core, the second fire-blocking core and the third fire-blocking core, a plurality of evenly distributed fine through holes are drilled on the outer ends of the cleaning balls, a plurality of evenly distributed adsorption holes are drilled on the outer ends of the cleaning balls, the adsorption holes are located outside the fine through holes, a sealing sheet is embedded between the inner walls of the adsorption holes, an adsorption mechanism is provided inside the cleaning ball, and an anti-adhesion mechanism is provided on the outer ends of the cleaning balls. When the flammable gas inside the pipeline is ignited and the gas flame propagates to the inside of the fire-blocking core base, the first fire-blocking core, the second fire-blocking core and the third fire-blocking core, the cleaning ball shakes under the flow of gas and contacts the fire-blocking core base, the first fire-blocking core, the second fire-blocking core and the third fire-blocking core. At the same time, under the action of the fine through holes, some of the combustion impurities during gas combustion will also be adsorbed, thereby avoiding the blockage of the flame arrester core base, the first flame arrester core, the second flame arrester core and the third flame arrester core channel walls due to excessive adsorption of combustion impurities, and in the process of gas ignition, due to the action of high temperature, the sealing sheet is deformed and shrinks inward due to the heat, and the adsorption holes are in a flow state at this time, so that some of the combustion impurities in the gas can be stored inside the cleaning ball, avoiding excessive combustion impurities inside the flame arrester and on the surface of the flame arrester core base, the first flame arrester core, the second flame arrester core and the third flame arrester core.

[0021] (3) The adsorption mechanism includes a dust pad inside the cleaning ball, a fiber layer is fixedly connected to the inner wall of the dust pad, a plurality of evenly distributed fiber ropes are fixedly connected between the fiber layer and the inner wall of the dust pad, a plurality of evenly distributed traction ropes are fixedly connected between the cleaning ball and the inner wall of the dust pad, a light touch layer is fixedly connected to the inner wall of the fiber layer, a magnet is arranged in the light touch layer, and a secondary adsorption mechanism is arranged at the outer end of the dust pad. When part of the combustion passes through the adsorption hole to clean the inside of the ball, the dust pad will absorb the combustion impurities entering and adsorb them to prevent them from flowing out again from the lower adsorption hole due to the opening of multiple adsorption holes, thereby completing To collect combustion impurities, at the same time, through the action of the fiber rope, the fiber layer gradually absorbs harmful gases in the gas to the fiber rope, so that the harmful gases spread throughout the fiber rope, and the photocontact layer on the inner wall purifies the harmful gases. When the gas flame burns in an absolutely magnetic state, the magnet shakes under the action of the airflow, allowing the cleaning ball to absorb combustion impurities. When the flame is not burning, the magnet is in a magnetic state, so it can be adsorbed on the surface of the fire-blocking core base, the first fire-blocking core, the second fire-blocking core and the third fire-blocking core, avoiding the phenomenon of gas disorder in the flame arrester.

[0022] (4) The secondary adsorption mechanism includes a plurality of elastic rods fixedly connected to the outer end of the dust suction pad, a storage ball fixedly connected to the upper end of the elastic rod, a load-bearing ball arranged inside the storage ball, a plurality of evenly distributed connecting ropes fixedly connected between the load-bearing ball and the inner wall of the storage ball, a plurality of evenly distributed storage balls fixedly connected to the inner wall of the storage ball, the storage ball is located outside the connecting rope, the storage ball is filled with shell powder, a powder outlet hole is bored at the outer end of the storage ball, a T-shaped hole is bored at the outer end of the storage ball, the powder outlet hole is connected to the T-shaped hole, when the dust suction pad completes the adsorption of combustion impurities, due to the long time, the dust suction pad absorbs After too many impurities are attached, the adsorption effect of its surface is reduced. At the same time, since the adsorption holes are still in an open and closed state, under the flow of gas and the shaking of the cleaning ball, the elastic rod swings, causing the load-bearing ball to swing around the storage ball, squeezing multiple storage balls, causing the shell powder inside to gradually flow from the powder outlet to the T-shaped hole under the action of pressure and then be released to the outside, while the combustion impurities that are not adsorbed on the outside are adsorbed by the shell powder floating in the air and fall on the surface of the dust pad, thereby improving its adsorption efficiency for combustion impurities.

[0023] (5) A filter screen is fixedly connected between the inner walls of the T-shaped hole. The filter screen is made of stainless steel. By setting the filter screen, when the shell powder flows into the inside of the T-shaped hole, the solidified particles are decomposed into powder again under the action of pressure through the filter screen and released at the T-shaped hole, so as to improve the adsorption efficiency of the shell powder on combustion impurities.

[0024] (6) The anti-adhesion mechanism includes a plurality of fixed rods embedded in the outer end of the cleaning ball, the upper end of the fixed rod is fixedly connected to a liquid storage ball, the outer end of the fixed rod is drilled with a emitting hole, the emitting hole is connected to the liquid storage ball, and a barrier sealing piece is fixedly connected between the inner walls of the emitting hole, the barrier sealing piece is located at the lower side of the liquid storage ball, and sodium octadecanoate powder is filled between the liquid storage ball and the barrier sealing piece. When the cleaning ball collides with the inner wall of the fire-blocking core base, the first fire-blocking core, the second fire-blocking core and the third fire-blocking core, the liquid storage ball on its surface first contacts the inner wall, and under the action of the force, the liquid storage ball The ball is deformed under pressure and shrinks inward, squeezing the sodium octadecanoate powder toward one side of the barrier seal, which opens and closes due to the squeezing, causing the sodium octadecanoate powder to flow from the emission holes to the inner wall surfaces of the fire-blocking core base, the first fire-blocking core, the second fire-blocking core and the third fire-blocking core, thereby reducing the adhesion of combustion impurities to the inner wall, making it easier for the fine through holes to wipe and absorb impurities on the surface, and reducing the blockage of the fire-blocking core base, the first fire-blocking core, the second fire-blocking core and the third fire-blocking core due to excessive impurities.

[0025] (7) The fire-blocking core base, the first fire-blocking core, the second fire-blocking core and the third fire-blocking core are all staggered, and the metal mesh filter elements of the fire-blocking core base, the first fire-blocking core, the second fire-blocking core and the third fire-blocking core are made of stainless steel with a diameter of 0.23-0.315 mm. By staggering the fire-blocking core base, the first fire-blocking core, the second fire-blocking core and the third fire-blocking core, the gas flame can gradually become smaller when passing through the channel wall of the fire-blocking core base, the first fire-blocking core, the second fire-blocking core and the third fire-blocking core, so that when the burning combustible gas passes through the narrow channel, the collision probability of the free radicals with the channel wall increases, and the free radicals participating in the reaction decrease. When the channel wall is narrowed to a certain extent, the collision between the free radicals and the channel wall dominates. Due to the sharp decrease in the number of free radicals, the reaction cannot continue, that is, the combustion reaction cannot continue to propagate through the flame arrester, thereby greatly reducing the phenomenon of gas flame combustion.

[0026] (8) A plurality of evenly distributed flow direction marking grooves are drilled on the outer end of the flame arrester. The flow direction marking grooves are consistent with the gas flow direction. By setting the flow direction marking grooves, the technicians can know the flow direction of the medium after installing the flame arrester.

[0027] (9) The traction rope is made of activated carbon fiber material. By setting the traction rope made of activated carbon fiber material, the traction rope can have the function of absorbing combustion impurities and harmful gases in addition to the traction function, further enhancing the efficiency of impurity cleaning and the space for storing impurities inside the cleaning ball. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 It is a schematic diagram of the overall three-dimensional structure of the present invention;

[0029] Figure 2It is a schematic diagram of the three-dimensional structure of multiple fire-blocking cores of the present invention;

[0030] Figure 3 It is a schematic diagram of the three-dimensional structure after multiple fire-blocking cores of the present invention are assembled;

[0031] Figure 4 It is a schematic diagram of the three-dimensional structure of the fire-blocking core channel wall of the present invention;

[0032] Figure 5 It is a structural schematic diagram of the cleaning mechanism of the present invention;

[0033] Figure 6 It is a structural schematic diagram of the secondary adsorption mechanism of the present invention;

[0034] Figure 7 It is a schematic structural diagram of the anti-adhesion mechanism of the present invention.

[0035] Description of the numbers in the figure:

[0036] 100 flame arrester, 200 flange, 300 flame arrester core base, 400 first flame arrester core, 500 second flame arrester core, 600 third flame arrester core, 700 threaded rod, 800 fixing nut, 900 cleaning mechanism, 901 cleaning ball, 902 fine through hole, 904 adsorption hole, 905 sealing sheet, 906 dust absorption pad, 907 fiber layer, 908 light contact layer, 909 magnet, 9010 fiber rope, 9011 traction rope, 1000 secondary adsorption mechanism, 1001 elastic rod, 1002 storage ball, 1003 load-bearing ball, 1004 connecting rope, 1005 storage ball, 1006 shell powder, 1007 powder outlet hole, 1008 T-shaped hole, 1100 anti-adhesion mechanism, 1101 fixing rod, 1102 liquid storage ball, 1103 sodium octadecanoate powder, 1104 dispersing hole, 1105 barrier sealing sheet. DETAILED DESCRIPTION

[0037] The following will combine the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all the embodiments. All other embodiments obtained by ordinary technicians in this field without creative work based on the embodiments of the present invention belong to the scope of protection of the present invention.

[0038] In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "top / bottom" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific position, be constructed and operated in a specific position, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0039] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "provided with", "mounted / connected", "connected", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0040] Example:

[0041] See also Figure 1-7A flame arrester for an oil and gas pipeline with a self-cleaning function comprises a flame arrester 100, wherein two symmetrical flanges 200 are fixedly connected to the outer end of the flame arrester 100, a flame arrester core base 300 is fixedly connected between the inner walls of the flame arrester 100, a first flame arrester core 400, a second flame arrester core 500 and a third flame arrester core 600 are arranged between the inner walls of the flame arrester core base 300, the first flame arrester core 400 is located on the left side of the second flame arrester core 500, and the second flame arrester core 500 is located on the right side of the third flame arrester core 600, a threaded rod 700 is inserted into the flame arrester core base 300, the first flame arrester core 400, the second flame arrester core 500 and the third flame arrester core 600, a fixing nut 800 is threadedly connected to the outer end of the threaded rod 700, and the fixing nut 800 is located on the right side of the third flame arrester core 600, and the inner walls of the flame arrester core base 300, the first flame arrester core 400, the second flame arrester core 500 and the third flame arrester core 600 are arranged between the inner walls. A cleaning mechanism 900 is provided. When the pipeline flame arrester is in use, if the flammable gas inside the pipeline is ignited, the gas flame will spread to the flame arrester core base 300, the first flame arrester core 400, the second flame arrester core 500 and the third flame arrester core 600. The generated flame will become several small flames after passing through a plurality of staggered small channels. The flame gradually consumes the energy of combustion on the channel wall through heat transfer, thereby reducing the flame temperature to below the ignition point and preventing the flame from spreading. During the burning process of the flame, the cleaning mechanism 900 adsorbs the particulate dust and combustion impurities inside the pipeline gas, and cleans the inner walls of the flame arrester core base 300, the first flame arrester core 400, the second flame arrester core 500 and the third flame arrester core 600 to prevent the channel wall from being blocked due to the coverage of combustion impurities under long-term use.

[0042] See also Figure 4-5The cleaning mechanism 900 includes a plurality of cleaning balls 901 provided on the inner walls of the fire-blocking core base 300, the first fire-blocking core 400, the second fire-blocking core 500 and the third fire-blocking core 600, a plurality of evenly distributed fine through holes 902 are drilled on the outer ends of the cleaning balls 901, a plurality of evenly distributed adsorption holes 904 are drilled on the outer ends of the cleaning balls 901, the adsorption holes 904 are located on the outsides of the fine through holes 902, and sealing sheets 905 are embedded between the inner walls of the adsorption holes 904, an adsorption mechanism is provided in the cleaning ball 901, and an anti-adhesion mechanism 1100 is provided on the outer ends of the cleaning balls 901. When the flammable gas inside the pipeline is ignited and the gas flame propagates to the inside of the pipe openings of the fire-blocking core base 300, the first fire-blocking core 400, the second fire-blocking core 500 and the third fire-blocking core 600, the cleaning ball 901 shakes under the flow of the gas and interacts with the fire-blocking core base 300, the first fire-blocking core 40 0. The second fire-blocking core 500 and the third fire-blocking core 600 are rubbed to wipe and adsorb the combustion impurities adsorbed on their surfaces. At the same time, under the action of the fine through holes 902, some combustion impurities during gas combustion will also be adsorbed, thereby avoiding the fire-blocking core base 300, the first fire-blocking core 400, the second fire-blocking core 500 and the third fire-blocking core 600. The channel wall is blocked due to excessive adsorption of combustion impurities, and in the process of gas ignition, due to the action of high temperature, the sealing sheet 905 is deformed and shrinks inward due to heat, and the adsorption hole 904 is in a flow state at this time, so that some combustion impurities in the gas can be stored inside the cleaning ball 901, avoiding excessive combustion impurities in the flame arrester 100 and on the surface of the fire-blocking core base 300, the first fire-blocking core 400, the second fire-blocking core 500, and the third fire-blocking core 600.

[0043] See also Figure 5The adsorption mechanism includes a dust absorption pad 906 provided in the cleaning ball 901, a fiber layer 907 is fixedly connected to the inner wall of the dust absorption pad 906, a plurality of evenly distributed fiber ropes 9010 are fixedly connected between the fiber layer 907 and the inner wall of the dust absorption pad 906, a plurality of evenly distributed traction ropes 9011 are fixedly connected between the cleaning ball 901 and the inner wall of the dust absorption pad 906, a light contact layer 908 is fixedly connected to the inner wall of the fiber layer 907, a magnet 909 is provided in the light contact layer 908, and a secondary adsorption mechanism 1000 is provided at the outer end of the dust absorption pad 906. When part of the combustion passes through the adsorption hole 904 to clean the inside of the ball 901, the dust absorption pad 906 absorbs the combustion impurities entering and adsorbs them to prevent the multiple adsorption holes 904 from opening and the adsorption holes below from 904 flows out again to complete the collection of combustion impurities. At the same time, under the action of fiber rope 9010, fiber layer 907 gradually absorbs harmful gases in the gas to fiber rope 9010, so that the harmful gases spread throughout fiber rope 9010, and the light contact layer 908 on the inner wall purifies the harmful gases. When the gas flame burns in an absolutely magnetic state, magnet 909 shakes under the action of airflow, so that cleaning ball 901 can absorb combustion impurities. When the flame is not burning, magnet 909 is in a magnetic state, so it can be adsorbed on the surface of fire-blocking core base 300, first fire-blocking core 400, second fire-blocking core 500 and third fire-blocking core 600, so as to avoid causing gas disorder in flame arrester 100.

[0044] See also Figure 5-6The secondary adsorption mechanism 1000 includes a plurality of elastic rods 1001 fixedly connected to the outer end of the dust absorption pad 906, a storage ball 1002 is fixedly connected to the upper end of the elastic rod 1001, a load-bearing ball 1003 is arranged inside the storage ball 1002, a plurality of evenly distributed connecting ropes 1004 are fixedly connected between the load-bearing ball 1003 and the inner wall of the storage ball 1002, a plurality of evenly distributed storage balls 1005 are fixedly connected to the inner wall of the storage ball 1002, the storage ball 1005 is located outside the connecting rope 1004, the storage ball 1005 is filled with shell powder 1006, a powder outlet hole 1007 is drilled at the outer end of the storage ball 1005, a T-shaped hole 1008 is drilled at the outer end of the storage ball 1002, the powder outlet hole 1007 is connected to the T-shaped hole 1008, when the dust absorption pad 906 is completed After the adsorption of combustion impurities in pairs, due to the long time, the dust pad 906 adsorbs too many impurities and its surface adsorption effect is reduced. At the same time, since the adsorption hole 904 is still in an open and closed state, under the flow of gas and the shaking of the cleaning ball 901, the elastic rod 1001 swings, causing the load-bearing ball 1003 to swing around the storage ball 1002, squeezing the multiple storage balls 1005, causing the shell powder 1006 inside to gradually flow from the powder outlet 1007 to the T-hole 1008 under the action of pressure, and then released to the outside, while the combustion impurities that are not adsorbed on the outside are adsorbed by the shell powder 1006 floating in the air, and then fall on the surface of the dust pad 906, thereby improving its adsorption efficiency for combustion impurities.

[0045] See also Figure 6 A filter screen is fixedly connected between the inner walls of the T-shaped hole 1008, and the filter screen is made of stainless steel. By setting the filter screen, when the shell powder 1006 flows into the inside of the T-shaped hole 1008, the solidified particles thereof will be decomposed into powder again under the action of pressure through the filter screen, and then released at the T-shaped hole 1008, so as to improve the adsorption efficiency of the shell powder 1006 on combustion impurities.

[0046] See also Figure 5 and 7The anti-adhesion mechanism 1100 includes a plurality of fixed rods 1101 embedded at the outer end of the cleaning ball 901, a liquid storage ball 1102 is fixedly connected to the upper end of the fixed rod 1101, a scattering hole 1104 is drilled at the outer end of the fixed rod 1101, the scattering hole 1104 is connected to the liquid storage ball 1102, a barrier sealing piece 1105 is fixedly connected between the inner walls of the scattering hole 1104, the barrier sealing piece 1105 is located at the lower side of the liquid storage ball 1102, and sodium octadecanoate powder 1103 is filled between the liquid storage ball 1102 and the barrier sealing piece 1105. When the cleaning ball 901 collides with the inner walls of the fire-blocking core base 300, the first fire-blocking core 400, the second fire-blocking core 500 and the third fire-blocking core 600, the liquid storage ball 1102 on its surface first contacts the inner wall of the fire-blocking core base 300, the first fire-blocking core 400, the second fire-blocking core 500 and the third fire-blocking core 600. The inner wall of the fire-blocking core 300, the first fire-blocking core 400, the second fire-blocking core 500 and the third fire-blocking core 600 are touched by the liquid storage ball 1102, which is compressed and deformed under the action of the force, thereby shrinking inward, squeezing the sodium octadecanoate powder 1103 toward one side of the barrier seal 1105, and the barrier seal 1105 is deformed and opened due to the squeezing, causing the sodium octadecanoate powder 1103 to flow from the emission hole 1104 to the inner wall surface of the fire-blocking core base 300, the first fire-blocking core 400, the second fire-blocking core 500 and the third fire-blocking core 600, thereby reducing the adhesion of combustion impurities to the inner wall, making it convenient for the fine through hole 902 to wipe and absorb the impurities on the surface, and reducing the blockage of the fire-blocking core base 300, the first fire-blocking core 400, the second fire-blocking core 500 and the third fire-blocking core 600 due to excessive impurities.

[0047] See also Figure 1-2 The fire-blocking core base 300, the first fire-blocking core 400, the second fire-blocking core 500 and the third fire-blocking core 600 are all staggered, and the metal mesh filter element of the fire-blocking core base 300, the first fire-blocking core 400, the second fire-blocking core 500 and the third fire-blocking core 600 is made of a stainless steel material with a diameter of 0.23-0.315 mm. By staggering the fire-blocking core base 300, the first fire-blocking core 400, the second fire-blocking core 500 and the third fire-blocking core 600, the gas flame can gradually become smaller when passing through the channel wall of the fire-blocking core base 300, the first fire-blocking core 400, the second fire-blocking core 500 and the third fire-blocking core 600, so that When the burning combustible gas passes through a narrow channel, the probability of collision between the free radicals and the channel wall increases, and the free radicals participating in the reaction decrease. When the channel wall is narrow to a certain extent, the collision between the free radicals and the channel wall dominates. Since the number of free radicals decreases sharply, the reaction cannot continue, that is, the combustion reaction cannot continue to propagate through the flame arrester, thereby greatly reducing the phenomenon of gas flame combustion. A plurality of evenly distributed flow direction marking grooves are drilled at the outer end of the flame arrester 100, and the flow direction marking grooves are consistent with the gas flow direction. By setting the flow direction marking grooves, the technicians can know the flow direction of the medium after installing the flame arrester 100.

[0048] See also Figure 5The traction rope 9011 is made of activated carbon fiber material. By setting the traction rope 9011 made of activated carbon fiber material, the traction rope 9011 can have the function of absorbing combustion impurities and harmful gases in addition to the traction function, thereby further enhancing the efficiency of impurity cleaning and the space for storing impurities inside the cleaning ball 901.

[0049] The above is only a preferred specific implementation manner of the present invention; but the protection scope of the present invention is not limited thereto; any technician familiar with the technical field within the technical scope disclosed by the present invention; any equivalent replacement or change based on the technical solution and improved concept of the present invention shall be covered by the protection scope of the present invention.

Claims

1. An oil and gas pipeline flame arrester with a self-cleaning function, comprising a flame arrester (100), characterized in that: The outer end of the flame arrester (100) is fixedly connected to two mutually symmetrical flanges (200); a fire-blocking core base (300) is fixedly connected between the inner walls of the flame arrester (100); a first fire-blocking core (400), a second fire-blocking core (500) and a third fire-blocking core (600) are arranged between the inner walls of the fire-blocking core base (300); the first fire-blocking core (400) is located on the left side of the second fire-blocking core (500); the second fire-blocking core (500) is located on the right side of the third fire-blocking core (600); A threaded rod (700) is inserted into the fire core base (300), the first fire retardant core (400), the second fire retardant core (500) and the third fire retardant core (600); a fixing nut (800) is threadedly connected to the outer end of the threaded rod (700); the fixing nut (800) is located on the right side of the third fire retardant core (600); and a cleaning mechanism (900) is provided between the inner walls of the fire retardant core base (300), the first fire retardant core (400), the second fire retardant core (500) and the third fire retardant core (600).

2. The oil-gas pipeline flame arrester with self-cleaning function according to claim 1, characterized in that: The cleaning mechanism (900) comprises a fire-blocking core base (300), a first fire-blocking core (400), a second fire-blocking core (500), and a plurality of cleaning balls (901) provided on the inner walls of the third fire-blocking core (600); a plurality of uniformly distributed fine through holes (902) are drilled on the outer ends of the cleaning balls (901); a plurality of uniformly distributed adsorption holes (904) are drilled on the outer ends of the cleaning balls (901); the adsorption holes (904) are located outside the fine through holes (902); a sealing sheet (905) is embedded between the inner walls of the adsorption holes (904); an adsorption mechanism is provided inside the cleaning balls (901); and an anti-adhesion mechanism (1100) is provided on the outer ends of the cleaning balls (901).

3. The oil-gas pipeline flame arrester with self-cleaning function according to claim 2, characterized in that: The adsorption mechanism comprises a dust absorption pad (906) disposed in a cleaning ball (901); a fiber layer (907) is fixedly connected to the inner wall of the dust absorption pad (906); a plurality of evenly distributed fiber ropes (9010) are fixedly connected between the fiber layer (907) and the inner wall of the dust absorption pad (906); a plurality of evenly distributed traction ropes (9011) are fixedly connected between the cleaning ball (901) and the inner wall of the dust absorption pad (906); a light touch layer (908) is fixedly connected to the inner wall of the fiber layer (907); a magnet (909) is disposed in the light touch layer (908); and a secondary adsorption mechanism (1000) is disposed at the outer end of the dust absorption pad (906).

4. The oil-gas pipeline flame arrester with self-cleaning function according to claim 3, characterized in that: The secondary adsorption mechanism (1000) comprises a plurality of elastic rods (1001) fixedly connected to the outer end of the dust absorption pad (906), the upper end of the elastic rod (1001) being fixedly connected to a storage ball (1002), a load-bearing ball (1003) being arranged inside the storage ball (1002), a plurality of evenly distributed connection ropes (1004) being fixedly connected between the load-bearing ball (1003) and the inner wall of the storage ball (1002), and the storage ball (1002 ) is fixedly connected to the inner wall with a plurality of evenly distributed storage balls (1005), the storage balls (1005) are located outside the connecting rope (1004), the storage balls (1005) are filled with shell powder (1006), the outer end of the storage balls (1005) is provided with a powder outlet hole (1007), the outer end of the storage ball (1002) is provided with a T-shaped hole (1008), and the powder outlet hole (1007) is connected to the T-shaped hole (1008).

5. The oil-gas pipeline flame arrester with self-cleaning function according to claim 4, characterized in that: A filter screen is fixedly connected between the inner walls of the T-shaped hole (1008), and the filter screen is made of stainless steel.

6. The oil-gas pipeline flame arrester with self-cleaning function according to claim 2, characterized in that: The anti-adhesion mechanism (1100) comprises a plurality of fixed rods (1101) embedded at the outer end of the cleaning ball (901); the upper end of the fixed rod (1101) is fixedly connected to a liquid storage ball (1102); the outer end of the fixed rod (1101) is provided with a dispensing hole (1104); the dispensing hole (1104) is connected to the liquid storage ball (1102); a barrier sealing sheet (1105) is fixedly connected between the inner walls of the dispensing hole (1104); the barrier sealing sheet (1105) is located at the lower side of the liquid storage ball (1102); and sodium octadecanoate powder (1103) is filled between the liquid storage ball (1102) and the barrier sealing sheet (1105).

7. The oil-gas pipeline flame arrester with self-cleaning function according to claim 1, characterized in that: The fire-blocking core base (300), the first fire-blocking core (400), the second fire-blocking core (500) and the third fire-blocking core (600) are all staggered, and the metal mesh filter elements of the fire-blocking core base (300), the first fire-blocking core (400), the second fire-blocking core (500) and the third fire-blocking core (600) are made of stainless steel material with a diameter of 0.23-0.315 mm.

8. The oil-gas pipeline flame arrester with self-cleaning function according to claim 1, characterized in that: The outer end of the flame arrester (100) is provided with a plurality of evenly distributed flow direction marking grooves, and the flow direction marking grooves are consistent with the gas flow direction.

9. The oil-gas pipeline flame arrester with self-cleaning function according to claim 3, characterized in that: The traction rope (9011) is made of activated carbon fiber material.

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