Anti-deflagration pipeline flame arrester

Abstract

The utility model discloses an anti-deflagration pipeline flame arrester, which relates to the technical field of pipeline safety and comprises a flame arrester main pipe, an air inlet pipe is arranged at one end of the flame arrester main pipe, and an air outlet pipe is arranged at the other end of the flame arrester main pipe. An air inlet connecting plate is fixedly installed on the outer side wall of the end, close to the flame arrester main pipe, of the air inlet pipe, an air outlet connecting plate is fixedly installed on the outer side wall of the end, close to the flame arrester main pipe, of the air outlet pipe, and a plurality of sliding strips are fixedly installed on the outer side wall of the main connecting plate. The sliding strips are arranged in the corresponding movable grooves in a sliding mode. Through the arrangement of the movable mounting mechanism and the connecting mechanism, after the connection of the connecting mechanism to the flame arrester main pipe, the air inlet pipe and the air outlet pipe is cancelled, the flame arrester main pipe is pushed to enable the sliding strip to move in the movable groove, and then the flame arrester main pipe can be taken down.

Description

Technical Field

[0001] The utility model relates to the technical field of pipeline safety, in particular to an anti-explosion pipeline flame arrester. Background Art

[0002] Flame arresters are safety devices used to prevent the spread of flames from flammable gases and flammable liquid vapors. They are generally installed in pipelines conveying flammable gases or on ventilated tanks to prevent the spread of flames (deflagration or detonation). The device consists of a flame arrester core, a flame arrester housing, and accessories. Flame arresters are also commonly used in pipelines conveying flammable gases. If flammable gases are ignited, the gas flame will spread to the entire pipe network. To prevent this danger, flame arresters must also be used. Flame arresters can also be used on pipelines with open flame equipment to prevent flashback accidents. However, they cannot prevent the open flame combustion of flammable gases and liquids in the open.

[0003] Publication No.: CN215537966U discloses a pipeline heat dissipation and air-venting flame arrester in the field of flame arrester technology, comprising an outer protective shell, a processing pipeline a is installed at the left end inside the outer protective shell, a processing pipeline b is installed at the right end inside the outer protective shell, a metal mesh filter element a is installed on the right side of the processing pipeline a, the metal mesh filter element a is clamped in the interior of the outer protective shell, a first processing room is provided on the right side of the metal mesh filter element a, and a high-speed exhaust fan is installed on the inner wall of the outer protective shell. The pipeline heat dissipation and air-venting flame arrester is arranged with a three-layer and two-room structure, wherein the structure of the three-layer core can improve the fire-retardant and explosion-proof capabilities of the flame arrester to a certain extent; and the two additional rooms are installed with later cooling and pressure reduction components, so that the high pressure and high temperature inside the flame arrester can be quickly discharged after the fire-retardant work is completed, thereby avoiding the accumulation of high pressure and high temperature and continuous damage to the flame arrester.

[0004] When using the above-mentioned device, each cleaning of the explosion-proof pipeline flame arrester requires first completely removing the heavy explosion-proof pipeline flame arrester from the pipeline, then removing the flame arrester core inside the flame arrester and flushing it with a high-pressure water gun containing detergent, and finally reinstalling the flame arrester on the pipeline. This method is cumbersome, significantly increases labor and time consumption, and makes the flame arrester cleaning process inefficient. Therefore, there is a need for a deflagration-proof pipeline flame arrester. Utility Model Content

[0005] The purpose of the utility model is to solve the disadvantage of the prior art that explosion-proof pipeline flame arresters are inconvenient to disassemble and clean, and to propose an explosion-proof pipeline flame arrester.

[0006] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0007] A flame arrester for explosion-proof pipes comprises a flame arrester main pipe, an air inlet pipe is provided at one end of the flame arrester main pipe, an air outlet pipe is provided at the other end of the flame arrester main pipe, a movable mounting mechanism is provided at the connection between the flame arrester main pipe, the air inlet pipe and the air outlet pipe, a connecting mechanism is provided at the connection between the flame arrester main pipe, the air inlet pipe and the air outlet pipe, and a fire arresting mechanism is provided in the flame arrester main pipe, and the movable mounting mechanism comprises a pair of main connecting plates symmetrically fixedly mounted at both ends of the outer side wall, an air inlet connecting plate is fixedly mounted on the outer side wall of one end of the air inlet pipe close to the flame arrester main pipe, and an air outlet connecting plate is fixedly mounted on the outer side wall of one end of the air outlet pipe close to the flame arrester main pipe, a pair of main connecting plates respectively correspond to the air inlet connecting plate and the air outlet connecting plate, a number of sliding bars are fixedly mounted on the outer side wall of the main connecting plate, and movable grooves are provided on the side of the air inlet connecting plate and the air outlet connecting plate close to the flame arrester main pipe, and the sliding bars are slidably arranged in the corresponding movable grooves.

[0008] It is used to facilitate the removal of the flame arrester main pipe and the cleaning of the flame arrester mechanism inside it. After canceling the connection between the flame arrester main pipe and the air inlet pipe and the air outlet pipe by the connecting mechanism, the flame arrester main pipe is pushed to make the sliding bar move in the movable groove, and the flame arrester main pipe can be removed.

[0009] Preferably, the connecting mechanism includes first threaded through holes opened at the four corners of the main connecting plate, and second threaded through holes opened at the four corners of the air inlet connecting plate and the air outlet connecting plate, and the first threaded through holes correspond to the second threaded through holes one by one;

[0010] The second threaded through hole is threaded through the internal thread to install a fastening bolt, and the fastening bolt is threadedly installed in the second threaded through hole, the second threaded through hole on the air inlet connecting plate, and the second threaded through hole on the air outlet connecting plate in sequence;

[0011] It is used to make a tight connection between the flame arrester main pipe and the air inlet pipe and the air outlet pipe. After the sliding bar is slid into the corresponding movable groove, the first threaded through hole and the second threaded through hole are made to correspond one to one. The fastening bolt is rotated so that the fastening bolt is threadedly installed on the second threaded through hole, the second threaded through hole and the second threaded through hole on the air inlet connecting plate and the air outlet connecting plate in sequence, thereby realizing a tight connection of the device and sealing the joints.

[0012] Preferably, the fire arresting mechanism includes a fire arresting core fixedly mounted in the center of the inner side wall of the flame arrester main pipe, threaded mounting rods are coaxially fixedly mounted in the center of both side walls of the fire arresting core, metal mesh disks are symmetrically arranged on both sides of the fire arresting core, limit rings are fixedly mounted on the threaded mounting rods, a threaded mounting hole is opened in the center of the metal mesh disk, and the threaded mounting rods are threadedly mounted in the threaded mounting holes;

[0013] The limiting ring is arranged between the fire arrester core and the metal mesh disk, and the outer diameter of the metal mesh disk is smaller than the inner diameter of the flame arrester main pipe;

[0014] Used to absorb the heat of the flame, the metal mesh disk increases the contact area between the flame and the cold surface. The fire-retardant core absorbs the heat of the flame through its high thermal conductivity material, reducing the flame temperature to below the ignition temperature of the combustible material, thereby extinguishing the flame. At the same time, the metal mesh disk can provide a certain filtering effect to prevent the fire-retardant core from being blocked.

[0015] Preferably, an air inlet mounting flange is fixedly mounted on one end of the air inlet pipe away from the flame arrester main pipe, a control valve is installed on the air inlet pipe, and an air outlet mounting flange is fixedly mounted on one end of the air outlet pipe away from the flame arrester main pipe.

[0016] The utility model has the following beneficial effects:

[0017] 1. By setting a movable mounting mechanism and a connecting mechanism, after canceling the connection between the flame arrester main pipe and the air inlet pipe and the air outlet pipe by the connecting mechanism, the flame arrester main pipe is pushed to make the sliding bar move in the movable groove, and the flame arrester main pipe can be removed. After the sliding bar is slid and set in the corresponding movable groove, the first threaded through hole and the second threaded through hole are made to correspond one to one, and the fastening bolt is rotated so that the fastening bolt is threadedly installed in the second threaded through hole on the air inlet connecting plate, the second threaded through hole and the second threaded through hole on the air outlet connecting plate in sequence, thereby realizing a sealed connection of the device.

[0018] 2. By setting up the fire-retardant mechanism, the metal mesh disk increases the contact area between the flame and the cold surface. The fire-retardant core absorbs the heat of the flame through its high thermal conductivity material, reducing the flame temperature below the ignition temperature of the combustible material, thereby extinguishing the flame. At the same time, the metal mesh disk can provide a certain filtering effect to prevent the fire-retardant core from being blocked. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the external structure of an anti-explosion pipeline flame arrester proposed by the utility model;

[0020] Figure 2 This is a side structural diagram of an anti-explosion pipeline flame arrester proposed by the utility model;

[0021] Figure 3 This is a schematic diagram of the separation structure of an anti-explosion pipeline flame arrester proposed by the utility model;

[0022] Figure 4 It is a structural schematic diagram of the fire-stop mechanism of the utility model.

[0023] In the figure: 1. flame arrester main pipe; 2. air inlet pipe; 3. air outlet pipe; 4. movable mounting mechanism; 41. main connecting plate; 42. air inlet connecting plate; 43. air outlet connecting plate; 44. sliding bar; 45. movable groove; 5. connecting mechanism; 51. first threaded through hole; 52. second threaded through hole; 53. fastening bolt; 6. flame arrester mechanism; 61. flame arrester core; 62. threaded mounting rod; 63. metal mesh disk; 64. limiting ring; 65. threaded mounting hole; 7. air inlet mounting flange; 8. control valve; 9. air outlet mounting flange. DETAILED DESCRIPTION

[0024] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0025] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying 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 orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0026] Reference Figure 1-4 , an anti-explosion pipeline flame arrester, including a flame arrester main pipe 1, an air inlet pipe 2 is provided at one end of the flame arrester main pipe 1, an air outlet pipe 3 is provided at the other end of the flame arrester main pipe 1, a movable mounting mechanism 4 is provided at the connection between the flame arrester main pipe 1 and the air inlet pipe 2 and the air outlet pipe 3, a connecting mechanism 5 is provided at the connection between the flame arrester main pipe 1 and the air inlet pipe 2 and the air outlet pipe 3, a fire arresting mechanism 6 is provided in the flame arrester main pipe 1, and the movable mounting mechanism 4 includes a pair of main connecting plates 41 symmetrically fixedly installed at both ends of the outer wall, the air inlet pipe An air inlet connecting plate 42 is fixedly mounted on the outer wall of one end of the pipe 2 near the flame arrester main pipe 1, and an air outlet connecting plate 43 is fixedly mounted on the outer wall of one end of the air outlet pipe 3 near the flame arrester main pipe 1. A pair of main connecting plates 41 correspond to the air inlet connecting plate 42 and the air outlet connecting plate 43 respectively. A plurality of sliding bars 44 are fixedly mounted on the outer wall of the main connecting plate 41. A movable groove 45 is provided on the side of the air inlet connecting plate 42 and the air outlet connecting plate 43 near the flame arrester main pipe 1, and the sliding bars 44 are slidably arranged in the corresponding movable grooves 45.

[0027] The connecting mechanism 5 includes first threaded through holes 51 formed at four corners of the main connecting plate 41 , and second threaded through holes 52 formed at four corners of the air inlet connecting plate 42 and the air outlet connecting plate 43 . The first threaded through holes 51 correspond to the second threaded through holes 52 one by one.

[0028] The second threaded through hole 52 is threadedly threaded with a fastening bolt 53 installed therein. The fastening bolt 53 is threadedly installed in the second threaded through hole 52 on the air inlet connecting plate 42 , the second threaded through hole 52 and the second threaded through hole 52 on the air outlet connecting plate 43 in sequence.

[0029] The fire-blocking mechanism 6 includes a fire-blocking core 61 fixedly mounted in the center of the inner wall of the flame arrester main pipe 1, and threaded mounting rods 62 are coaxially fixedly mounted in the center of the two side walls of the fire-blocking core 61. Metal mesh disks 63 are symmetrically arranged on both sides of the fire-blocking core 61, and a limit ring 64 is fixedly mounted on the threaded mounting rods 62. A threaded mounting hole 65 is opened in the center of the metal mesh disk 63, and the threaded mounting rods 62 are threadedly mounted in the threaded mounting holes 65.

[0030] The limiting ring 64 is arranged between the flame arrester core 61 and the metal mesh disk 63 . The outer diameter of the metal mesh disk 63 is smaller than the inner diameter of the flame arrester main pipe 1 .

[0031] An air inlet mounting flange 7 is fixedly mounted on one end of the air inlet pipe 2 away from the flame arrester main pipe 1 , a control valve 8 is mounted on the air inlet pipe 2 , and an air outlet mounting flange 9 is fixedly mounted on one end of the air outlet pipe 3 away from the flame arrester main pipe 1 .

[0032] In the present invention, when it is necessary to clean the inside of the flame arrester main pipe 1, the air inlet pipe 2 is closed by controlling the valve 8, the fastening bolt 53 is removed, and the flame arrester main pipe 1 is pushed so that the slide bar 44 moves in the movable groove 45. The flame arrester main pipe 1 can be removed, and the metal mesh plate 63 is rotated and disassembled to achieve cleaning of the inside of the flame arrester main pipe 1. After the cleaning is completed, the slide bar 44 is slid and set in the corresponding movable groove 45 so that the first threaded through hole 51 and the second threaded through hole 52 are one-to-one corresponding, and the first threaded through hole 51 and the second threaded through hole 52 are rotated and fastened. The bolt 53 is threadedly installed in the second threaded through hole 52 on the air inlet connecting plate 42, the second threaded through hole 52 and the second threaded through hole 52 on the air outlet connecting plate 43 in sequence to achieve a sealed connection of the device. The metal mesh disk 63 increases the contact area between the flame and the cold surface. The fire-blocking core 61 absorbs the heat of the flame through its high thermal conductivity material, so that the flame temperature drops below the ignition temperature of the combustible material, thereby extinguishing the flame. At the same time, the metal mesh disk 63 can provide a certain filtering effect to prevent the fire-blocking core 61 from being blocked.

[0033] The above is only a preferred specific implementation method of the present invention, but the protection scope of the present invention is not limited to this. Any technician familiar with the technical field within the technical scope disclosed by the present invention can make equivalent replacements or changes based on the technical solution and utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A flame arrester for preventing explosion in pipelines, comprising a flame arrester main pipe (1), an air inlet pipe (2) being provided at one end of the flame arrester main pipe (1), an air outlet pipe (3) being provided at the other end of the flame arrester main pipe (1), a movable mounting mechanism (4) being provided at the connection between the flame arrester main pipe (1) and the air inlet pipe (2) and the air outlet pipe (3), a connecting mechanism (5) being provided at the connection between the flame arrester main pipe (1) and the air inlet pipe (2) and the air outlet pipe (3), and a fire arresting mechanism (6) being provided inside the flame arrester main pipe (1), characterized in that: The movable mounting mechanism (4) comprises a pair of main connecting plates (41) symmetrically fixedly mounted on both ends of the outer wall, an air inlet connecting plate (42) is fixedly mounted on the outer wall of one end of the air inlet pipe (2) close to the flame arrester main pipe (1), and an air outlet connecting plate (43) is fixedly mounted on the outer wall of one end of the air outlet pipe (3) close to the flame arrester main pipe (1), the pair of main connecting plates (41) respectively correspond to the air inlet connecting plate (42) and the air outlet connecting plate (43), a plurality of sliding bars (44) are fixedly mounted on the outer wall of the main connecting plate (41), and movable grooves (45) are provided on one side of the air inlet connecting plate (42) and the air outlet connecting plate (43) close to the flame arrester main pipe (1), and the sliding bars (44) are slidably arranged in the corresponding movable grooves (45).

2. The anti-explosion pipeline flame arrester according to claim 1, characterized in that: The connecting mechanism (5) includes first threaded through holes (51) provided at four corners of the main connecting plate (41), and second threaded through holes (52) provided at four corners of the air inlet connecting plate (42) and the air outlet connecting plate (43), and the first threaded through holes (51) correspond to the second threaded through holes (52) one by one.

3. The anti-explosion pipeline flame arrester according to claim 2, characterized in that: The second threaded through hole (52) is threaded through the internal thread to install a fastening bolt (53), and the fastening bolt (53) is threadedly installed in the second threaded through hole (52) on the air inlet connecting plate (42), the second threaded through hole (52) and the second threaded through hole (52) on the air outlet connecting plate (43) in sequence.

4. The anti-explosion pipeline flame arrester according to claim 1, characterized in that: The fire arresting mechanism (6) comprises a fire arresting core (61) fixedly mounted at the center of the inner side wall of the fire arrester main pipe (1); threaded mounting rods (62) are coaxially fixedly mounted at the centers of both side walls of the fire arresting core (61); metal mesh disks (63) are symmetrically arranged on both sides of the fire arresting core (61); a limiting ring (64) is fixedly mounted on the threaded mounting rods (62); a threaded mounting hole (65) is provided at the center of the metal mesh disk (63); and the threaded mounting rods (62) are threadedly mounted in the threaded mounting holes (65).

5. The anti-explosion pipeline flame arrester according to claim 4, characterized in that: The limiting ring (64) is arranged between the flame arrester core (61) and the metal mesh disk (63), and the outer diameter of the metal mesh disk (63) is smaller than the inner diameter of the flame arrester main pipe (1).

6. The anti-explosion pipeline flame arrester according to claim 1, characterized in that: An air inlet mounting flange (7) is fixedly mounted on one end of the air inlet pipe (2) away from the flame arrester main pipe (1), a control valve (8) is mounted on the air inlet pipe (2), and an air outlet mounting flange (9) is fixedly mounted on one end of the air outlet pipe (3) away from the flame arrester main pipe (1).

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