Combustible gas treatment device

Abstract

The utility model relates to gas treatment technical field discloses an inflammable gas treatment device, including fire -resistant shell, the outer wall left side intercommunication of fire -resistant shell has the air inlet pipe, the outer wall middle part of air inlet pipe is connected with the support ring with screw thread, the outer wall all around of fire -resistant shell is connected with a plurality of bolts no.

Description

Technical Field

[0001] This utility model relates to the field of gas treatment technology, and in particular to a flammable gas treatment device. Background Technology

[0002] Flammable gas handling equipment is a device and system used to effectively treat flammable gases to ensure safety during production. The chemical industry, especially the production of coatings, often produces flammable and explosive gases due to the use of organic solvents. To prevent fires and explosions, the industry generally adopts fire prevention measures. Flame arresters limit the speed of flame propagation, prevent its spread, and ensure safety. With the improvement of safety awareness and technology, flame arrester designs have become more mature, taking into account both safety and ease of maintenance.

[0003] A search revealed Chinese Patent Publication No. CN207569891U, which discloses a flammable gas treatment system. This utility model's flammable gas treatment system includes a combustion chamber, a pipe, and a cooling system. The combustion chamber is a hollow cavity structure enclosed by a wall, with an opening at the top. The first end of the pipe is used to introduce flammable gas, and the second end of the pipe enters the cavity to allow the flammable gas to burn within the combustion chamber. The cooling system has heat conduction with the wall and is used to cool the wall. By setting up a combustion chamber, flammable gases are introduced into the cavity of the combustion chamber for combustion, reducing the potential damage to surrounding objects during combustion, preventing fires, and protecting the safety of personnel and property. Through heat conduction between the cooling system and the wall, the wall is cooled, thereby achieving continuous cooling of the combustion chamber and ensuring the normal operation of the flammable gas treatment system provided in this embodiment. However, in existing flammable gas treatment devices, metal mesh flame arresters are composed of multiple layers of metal mesh, which have the advantages of simple structure and low cost, but their heat dissipation performance is poor and they are prone to failure in high-temperature environments. In chemical production processes, some gases are flammable. If improperly operated at high temperatures, flammable mixtures can be formed, leading to an increased risk of explosion. Utility Model Content

[0004] To overcome the above shortcomings, this utility model provides a flammable gas treatment device, which aims to improve the problems of poor heat dissipation performance, easy failure in high temperature environment, and improper operation at high temperature, which can form flammable mixture and increase the risk of explosion.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a flammable gas treatment device, comprising a flame-arresting shell, an air inlet pipe connected to the left side of the outer wall of the flame-arresting shell, a support ring threadedly connected to the middle of the outer wall of the air inlet pipe, multiple bolts threadedly connected to the outer wall of the flame-arresting shell, multiple buckles fixedly connected to the outer wall of the flame-arresting shell, a metal sheet rotatably connected to the middle of the inner wall of the flame-arresting shell, a metal mesh fixedly connected to the right side of the outer wall of the metal sheet, a connecting pipe connected to the right side of the outer wall of the flame-arresting shell, the other end of the connecting pipe connected to a gas box, a door rotatably connected to the front side of the outer wall of the gas box, a branch pipe connected to the right side of the outer wall of the gas box, an air outlet pipe fixedly connected to the top of the outer wall of the branch pipe, and a ventilation mechanism connected to the left side of the outer wall of the flame-arresting shell, the ventilation mechanism being used to accelerate gas flow and control pressure.

[0006] The above technical solution involves the following steps: flammable gas enters the device through the inlet pipe, where a support ring ensures a stable connection and disperses pressure, allowing the gas to smoothly enter the flame arrestor shell. The gas first contacts the metal sheet, changing its flow direction and velocity, initially blocking the flame. The metal mesh absorbs heat using heat exchange and flame propagation characteristics, lowering the temperature below the ignition point of the flammable gas and extinguishing the flame. The flame-arrested gas then enters a gas tank through a connecting pipe for storage and processing. The gas tank temporarily stores the gas, providing a buffer. The gas is then discharged through branch pipes and an outlet pipe for purification and recovery. The outlet pipe is located at the top of the branch pipe for smooth gas discharge. Bolts secure the flame arrestor shell components, and buckles facilitate inspection and maintenance.

[0007] As a further description of the above technical solution:

[0008] The ventilation mechanism includes a connecting pipe, which is fixedly connected to the rear side of the outer wall of the fire-arresting shell. A protective shell is fixedly connected to the rear side of the outer wall of the connecting pipe. A motor is fixedly connected to the top of the outer wall of the protective shell. An exhaust pump is fixedly connected to the output end of the motor. Blades are rotatably connected to the middle of the inner wall of the exhaust pump. A flange pipe is connected to the left side of the outer wall of the exhaust pump.

[0009] The above technical solution provides power to the ventilation system. When the power is turned on, the ventilation pump will start running. The blades of the ventilation pump rotate, which pushes the air to flow and forms a low-pressure area. External gas is drawn into the pump through the flange pipe. The gas gains kinetic energy under the action of the blades and flows to the flame arrestor shell after being pressurized to provide a specific gas environment. The protective shell ensures the stable operation of the motor and the ventilation pump, provides support and fixation, and prevents damage and performance degradation.

[0010] As a further description of the above technical solution:

[0011] A connecting ring is fixedly connected to the middle of the outer wall of the connecting pipe, and the outer wall of the connecting ring is threaded with two threads around its perimeter.

[0012] The above technical solution involves fixing the middle of the connecting pipe with a connecting ring, and the thread on the outer wall of the connecting ring is tightly connected to the connecting pipe, which facilitates maintenance and inspection.

[0013] As a further description of the above technical solution:

[0014] The gas tank is fixedly connected to four corners at the bottom, and a door bolt is fixedly connected to the left side of the outer wall of the hatch.

[0015] The above technical solution involves installing support legs at the bottom of the gas tank to provide stable support, and fixing a door bolt on the left side of the hatch, which enhances safety and facilitates operation.

[0016] As a further description of the above technical solution:

[0017] A fixing rod is fixedly connected to the bottom of the outer wall of the fire-retardant shell, and a telescopic rod is fixedly connected to the inner wall of the outer wall of the fixing rod.

[0018] The above technical solution enhances the stability and durability of the flame arrester by using a fixed rod at the bottom of the flame arrester housing, and the telescopic rod is fixed to the inner wall of the fixed rod, further improving the stability of the flame arrester's operation.

[0019] As a further description of the above technical solution:

[0020] The outer wall of the branch pipe is fixedly connected with a fixing ring, and the outer wall of the fixing ring is threaded with three bolts.

[0021] The above technical solution achieves stability by fixing the branch pipe around the perimeter of the fixing ring and by threading the bolts.

[0022] As a further description of the above technical solution:

[0023] A sealing groove is provided on the left side of the inner wall of the flame-retardant shell, and a sealing ring is fixedly connected to the right side of the inner wall of the flame-retardant shell.

[0024] Through the above technical solution, the flame-retardant shell is fixedly connected to the sealing ring on the right side through the sealing groove on the left side, thereby ensuring its internal sealing performance.

[0025] As a further description of the above technical solution:

[0026] A baffle is fixedly connected to the left side of the outer wall of the exhaust pump, and four bolts are threaded around the outer wall of the baffle.

[0027] The above technical solution—the baffle on the left side of the exhaust pump and the bolts connected by threads around it—ensures the stable connection and safe operation of the flammable gas treatment device.

[0028] This utility model has the following beneficial effects:

[0029] 1. In this utility model, flammable gas enters the device through the air inlet pipe. The gas first encounters the metal plate, changing its flow direction and velocity. The metal mesh, as the main flame-arresting component, absorbs the heat of the flame and extinguishes it. The flame-arrested gas enters the gas box for storage and treatment through the connecting pipe. The gas is discharged through the branch pipe and the air outlet pipe for purification and recovery. The exhaust pump draws harmful gas into the air duct, filters it, and then it enters the inert gas box before being discharged along the air outlet pipe. The use of the inert gas box to treat the exhaust gas prevents flammable gas from mixing with air, reduces the risk of explosion, and ensures the safe operation of the equipment.

[0030] 2. In this utility model, the motor provides power to the ventilation system. After the power is turned on, its output end rotates, driving the ventilation pump to run. The blades of the ventilation pump rotate, pushing the air to flow and forming a low-pressure area. External gas is drawn into the pump through the flange pipe. The gas gains kinetic energy under the action of the blades and flows to the flame arrestor shell after being pressurized to provide a specific gas environment. The protective shell ensures the stable operation of the motor and the ventilation pump, while providing support and fixation to prevent damage and performance degradation. Attached Figure Description

[0031] Figure 1 This is a perspective view of a flammable gas treatment device proposed in this utility model;

[0032] Figure 2 This is a front view of a flammable gas treatment device proposed in this utility model;

[0033] Figure 3 This is a top view of a flammable gas treatment device proposed in this utility model;

[0034] Figure 4 This is a partial structural exploded view of a flammable gas treatment device proposed in this utility model;

[0035] Figure 5 This is a split view of the ventilation mechanism of a flammable gas treatment device proposed in this utility model.

[0036] Legend:

[0037] 1. Flame-arresting outer shell; 2. Ventilation mechanism; 201. Connecting pipe; 202. Protective shell; 203. Motor; 204. Exhaust pump; 205. Blade; 206. Flange pipe; 3. Inlet pipe; 4. Support ring; 5. Bolt 1; 6. Fastener; 7. Metal sheet; 8. Metal mesh; 9. Connecting pipe; 10. Gas box; 11. Door; 12. Branch pipe; 13. Outlet pipe; 14. Connecting ring; 15. Thread 2; 16. Support leg; 17. Door bolt; 18. Fixing rod; 19. Telescopic rod; 20. Sealing groove; 21. Sealing ring; 22. Fixing ring; 23. Bolt 3; 24. Baffle; 25. Bolt 4. Detailed Implementation

[0038] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0039] Reference Figure 1 , Figure 3 and Figure 4 An embodiment of this utility model provides a flammable gas treatment device, including a flame-arresting shell 1, an air inlet pipe 3 connected to the left side of the outer wall of the flame-arresting shell 1, a support ring 4 threadedly connected to the middle of the outer wall of the air inlet pipe 3, multiple bolts 5 threadedly connected to the outer wall of the flame-arresting shell 1, multiple buckles 6 fixedly connected to the outer wall of the flame-arresting shell 1, a metal sheet 7 rotatably connected to the middle of the inner wall of the flame-arresting shell 1, a metal mesh 8 fixedly connected to the right side of the outer wall of the metal sheet 7, a connecting pipe 9 connected to the right side of the outer wall of the right side of the flame-arresting shell 1, the other end of the connecting pipe 9 connected to a gas box 10, a door 11 rotatably connected to the front side of the outer wall of the gas box 10, a branch pipe 12 connected to the right side of the outer wall of the gas box 10, an air outlet pipe 13 fixedly connected to the top of the outer wall of the branch pipe 12, a ventilation mechanism 2 connected to the left side of the outer wall of the flame-arresting shell 1, the ventilation mechanism 2 being used to accelerate gas flow and control pressure, a connecting ring 14 fixedly connected to the middle of the outer wall of the connecting pipe 9, and threads 15 threadedly connected to the outer wall of the connecting ring 14.

[0040] Specifically, flammable gas enters the device through the inlet pipe 3. The support ring 4 ensures a stable connection and disperses pressure, allowing the gas to smoothly enter the flame-arresting shell 1. The gas first encounters the metal sheet 7, changing its flow direction and velocity, distributing it evenly, and initially blocking the flame. The metal mesh 8, as the main flame-arresting component, absorbs heat from the flame based on heat exchange and flame propagation characteristics, lowering the temperature below the ignition point of the flammable gas and extinguishing the flame. The flame-arrested gas then enters the gas box 10 for storage and processing through the connecting pipe 9. The gas box 10 temporarily holds the gas, providing a buffer. The gas is discharged through the branch pipe 12 and the outlet pipe 13 for purification and recovery. The outlet pipe 13 is located at the top of the branch pipe 12 to facilitate smooth gas discharge. Bolt 5 secures the flame arrestor housing 1 component, buckle 6 facilitates inspection and maintenance, hatch 11 is used for maintenance of gas box 10, door bolt 17 ensures safe closure, the exhaust pump draws harmful gas into the air inlet pipe 3, filters it and enters the inert gas box 10, and then discharges it along the air outlet pipe 13. The outer wall of the flame arrestor housing 1 is connected to the left side of the air venting mechanism 2, which is used to accelerate gas flow and control pressure. A connecting ring 14 is fixedly connected to the middle of the outer wall of the connecting pipe 9. The outer wall of the connecting ring 14 is threaded around the perimeter to achieve a tight connection with the connecting pipe 9, which facilitates maintenance and inspection.

[0041] Reference Figure 1 , Figure 2 and Figure 5 The ventilation mechanism 2 includes a connecting pipe 201, which is fixedly connected to the rear side of the outer wall of the flame arrestor shell 1. A protective shell 202 is fixedly connected to the rear side of the outer wall of the connecting pipe 201. A motor 203 is fixedly connected to the top of the outer wall of the protective shell 202. An exhaust pump 204 is fixedly connected to the output end of the motor 203. A blade 205 is rotatably connected to the middle of the inner wall of the exhaust pump 204. A flange pipe 206 is connected to the left side of the outer wall of the exhaust pump 204. Support legs 16 are fixedly connected to the four corners at the bottom of the gas box 10. A door bolt 17 is fixedly connected to the left side of the outer wall of the hatch 11. A fixing rod 18 is fixedly connected to the bottom of the outer wall of the flame arrestor shell 1. A telescopic rod 19 is fixedly connected to the inner wall of the outer wall of the fixing rod 18.

[0042] Specifically, motor 203 provides power to the ventilation system. After the power is turned on, its output end rotates, driving the ventilation pump 204 to operate. The blades 205 of the ventilation pump 204 rotate, pushing airflow and forming a low-pressure area. External gas is drawn into the pump through flange pipe 206. The gas gains kinetic energy under the action of blades 205, and after being pressurized, it flows to the flame arrestor housing 1, which may be used to provide a specific gas environment. The protective shell 202 ensures the stable operation of the motor 203 and the exhaust pump 204, while providing support and fixation to prevent damage and performance degradation. Support feet 16 are installed at the four corners of the bottom of the gas tank 10, providing stable support for the gas tank 10. A door bolt 17 is fixedly connected to the left side of the outer wall of the hatch 11. This door bolt 17 not only enhances the safety of the hatch 11, but also facilitates user operation. A fixing rod 18 is also fixedly connected to the bottom of the outer wall of the flame arrestor shell 1. This fixing rod 18 further ensures the stability and durability of the flame arrestor shell 1. A telescopic rod 19 is also fixedly connected to the inner wall of the outer wall of the fixing rod 18. The telescopic rod 19 makes the flame arrester operate more stably.

[0043] Reference Figure 1 , Figure 2 and Figure 3 A fixing ring 22 is fixedly connected around the outer wall of the branch pipe 12, and bolts 23 are threaded around the outer wall of the fixing ring 22. A sealing groove 20 is opened on the left side of the inner wall of the fire-arresting shell 1, and a sealing ring 21 is fixedly connected on the right side of the inner wall of the fire-arresting shell 1. A baffle 24 is fixedly connected on the left side of the outer wall of the exhaust pump 204, and bolts 25 are threaded around the outer wall of the baffle 24.

[0044] Specifically, the branch pipe 12 is secured by the fixing ring 22 fixedly connected around the perimeter and the threaded bolts 23. The flame arrestor shell 1 ensures internal sealing by the sealing groove 20 opened on the left and the sealing ring 21 fixedly connected on the right. The baffle 24 fixedly connected on the left side of the exhaust pump 204 and the threaded bolts 25 on the perimeter play a stabilizing and protective role, together ensuring the secure connection and safe operation of each component of the flammable gas treatment device.

[0045] Working Principle: Flammable gas enters the device through the inlet pipe 3. The support ring 4 provides fixation and support, ensuring a stable connection between the inlet pipe 3 and the flame arrestor shell 1. This helps to disperse gas pressure, allowing the gas to enter the flame arrestor shell 1 more smoothly. The gas entering the flame arrestor shell 1 first encounters the metal plate 7, which is rotatably connected to the middle of the inner wall of the flame arrestor shell 1. The metal plate 7 can change the gas flow direction and velocity to a certain extent, making the gas distribution more uniform. Simultaneously, it provides initial obstruction and separation of any existing flame, reducing the flame's energy and propagation speed. The metal mesh 8 on the right side of the metal plate 7 is the main flame-arresting component. According to heat exchange theory and flame propagation characteristics, when the flame passes through the metal mesh 8, the mesh 8, with its good thermal conductivity, quickly absorbs and dissipates the flame's heat, lowering the flame temperature below the ignition point of the flammable gas, thus preventing flame propagation and extinguishing the flame within the flame arrestor shell 1, preventing its continued spread. The gas after flame arrest passes through the connecting pipe 9. The gas enters the gas box 10 for storage and further processing. The gas box 10 serves as a temporary container for the gas, providing a buffer for subsequent gas treatment or utilization. The gas in the gas box 10 can be discharged through the branch pipe 12 and the exhaust pipe 13 for subsequent purification and recycling. The exhaust pipe 13 is located at the top of the branch pipe 12. Considering the density and flow characteristics of the gas, it is conducive to smoother gas discharge. The bolts 5 on the flame arrestor shell 1 are used to fix the relevant components of the flame arrestor shell 1 to ensure the structural stability of the device. The latch 6 facilitates the opening and closing of the flame arrestor shell 1, making it easy to inspect, maintain and replace the internal components. The hatch 11 on the gas box 10 can be used for inspection and maintenance of the inside of the gas box 10. The door bolt 17 is used to ensure the safe closure of the hatch 11 and prevent gas leakage. A vacuum pump is used to draw harmful gases from the factory into the inlet pipe 3. After being filtered by the flame arrester, the gases enter the inert gas box 10 and are then discharged along the exhaust pipe 13.

[0046] Motor 203 provides power to the entire ventilation system. After the power is turned on, its output end begins to rotate, providing the mechanical energy required for the operation of ventilation pump 204, driving the internal components of ventilation pump 204 to operate. The rotation of the output end of motor 203 is transmitted to ventilation pump 204, causing the blades 205 in the middle of the inner wall of ventilation pump 204 to start rotating. When the blades 205 rotate, they push the surrounding air or gas to flow. Inside ventilation pump 204, due to the rotation of blades 205, a low-pressure area is formed. According to the principle of fluid mechanics, gas always flows from high-pressure area to low-pressure area. Flange pipe 206 is connected to an external gas source or pipeline. Under the action of the low pressure formed inside ventilation pump 204, external gas is drawn into the system through flange pipe 206. In the exhaust pump 204, the gas drawn into the exhaust pump 204 gains kinetic energy under the action of the rotating blades 205, is pressurized and pushed to flow towards the outlet of the exhaust pump 204. Then, the gas flows to the flame arrestor housing 1 through the connecting pipe 201, possibly to provide a specific gas environment inside the flame arrestor housing 1 to assist in the flow of gas inside the flame arrestor housing 1. The protective housing 202 protects the motor 203 and the exhaust pump 204 from the influence of external environmental factors, ensuring that they can operate stably and reliably. At the same time, the protective housing 202 also provides a certain degree of support and fixation for the motor 203 and the exhaust pump 204, ensuring that they maintain the correct position and posture during operation, and avoiding damage to components and performance degradation due to vibration or other reasons.

[0047] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A flammable gas handling device comprising a flameproof enclosure (1), characterised in that: The outer wall of the fire-resistant housing (1) is connected to an air inlet pipe (3) on the left side. A support ring (4) is threadedly connected to the middle of the outer wall of the air inlet pipe (3). Multiple bolts (5) are threadedly connected to the outer wall of the fire-resistant housing (1). Multiple buckles (6) are fixedly connected to the outer wall of the fire-resistant housing (1). A metal sheet (7) is rotatably connected to the middle of the inner wall of the fire-resistant housing (1). A metal mesh (8) is fixedly connected to the right side of the outer wall of the metal sheet (7). A connecting pipe (9) is connected to the right side of the outer wall of the fire-resistant housing (1). The other end of the connecting pipe (9) is connected to a gas box (10). A door (11) is rotatably connected to the front side of the outer wall of the gas box (10). A branch pipe (12) is connected to the right side of the outer wall of the gas box (10). An air outlet pipe (13) is fixedly connected to the top of the outer wall of the branch pipe (12). A ventilation mechanism (2) is connected to the left side of the outer wall of the fire-resistant housing (1). The ventilation mechanism (2) is used to accelerate gas flow and control pressure.

2. The flammable gas treatment device according to claim 1, characterized in that: The ventilation mechanism (2) includes a connecting pipe (201), which is fixedly connected to the rear side of the outer wall of the fire-resistant housing (1). A protective shell (202) is fixedly connected to the rear side of the outer wall of the connecting pipe (201). A motor (203) is fixedly connected to the top of the outer wall of the protective shell (202). An exhaust pump (204) is fixedly connected to the output end of the motor (203). A blade (205) is rotatably connected to the middle of the inner wall of the exhaust pump (204). A flange pipe (206) is connected to the left side of the outer wall of the exhaust pump (204).

3. The flammable gas treatment device according to claim 1, characterized in that: A connecting ring (14) is fixedly connected to the middle of the outer wall of the connecting pipe (9), and a threaded second (15) is threaded around the outer wall of the connecting ring (14).

4. The flammable gas treatment device according to claim 1, characterized in that: The gas tank (10) is fixedly connected to four corners at the bottom with support legs (16), and the outer wall of the hatch (11) is fixedly connected to a door bolt (17).

5. A flammable gas treatment device according to claim 1, characterized in that: A fixing rod (18) is fixedly connected to the bottom of the outer wall of the fire-resistant shell (1), and a telescopic rod (19) is fixedly connected to the inner wall of the outer wall of the fixing rod (18).

6. The flammable gas treatment device according to claim 1, characterized in that: The outer wall of the branch pipe (12) is fixedly connected with a fixing ring (22), and the outer wall of the fixing ring (22) is threaded with bolts (23).

7. A flammable gas treatment device according to claim 1, characterized in that: A sealing groove (20) is provided on the left side of the inner wall of the fire-resistant housing (1), and a sealing ring (21) is fixedly connected to the right side of the inner wall of the fire-resistant housing (1).

8. A flammable gas treatment device according to claim 2, characterized in that: A baffle (24) is fixedly connected to the left side of the outer wall of the exhaust pump (204), and four bolts (25) are threaded around the outer wall of the baffle (24).

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