Fireproof structure for petrochemical engineering safety production

Abstract

The utility model belongs to the technical field of petrochemical engineering safety, and particularly relates to a flame arresting structure for petrochemical engineering safety production, which comprises a lower shell, a plurality of sliding grooves are arranged on the inner wall of the lower shell, a lifting ring is mounted on a sliding block, an iron sheet is mounted on the bottom side of the lifting ring, a fixing ring is mounted on the inner wall of the lower shell, and the fixing ring is fixed on the lower shell. A pulse electromagnet is installed on the fixing ring, a plurality of springs are installed between the fixing ring and the lifting ring, a fire retardant core is placed on the supporting frame, the pulse electromagnet is magnetized, the moment that the pulse electromagnet generates magnetic force attracts an iron sheet to move towards the pulse electromagnet, then the magnetic force disappears, and the springs push the fire retardant core to vertically move upwards. The magnetic force is matched with the thrust of the spring, so that the fire-retardant core generates high-frequency vibration, particles attached to the fire-retardant core are shaken off in the vibration process of the fire-retardant core, blocking in a small channel in the fire-retardant core is avoided, the anti-blocking effect of the fire-retardant structure is improved, and the use effect of the fire-retardant structure is kept.

Description

Technical Field

[0001] The utility model relates to the technical field of petrochemical safety, in particular to a flame arrestor structure for petrochemical safety production. Background Technique

[0002] With the continuous development of China's national economy, China's oil consumption has been increasing year by year. The status of oil production in the national economy is getting higher and higher, and its role is getting bigger and bigger. In petrochemical production, a flame arrestor structure is generally required to play a safety role.

[0003] A Chinese patent with the publication number CN 209790670 U discloses a safe and stable flame arrester, including an upper shell. A lower shell is placed below the upper shell. A plurality of first reinforcing protrusions are fixedly connected to the outer side of the lower shell, and a plurality of second reinforcing protrusions are fixedly connected to the outer side of the upper shell. A first support block is fixedly connected to the upper end inside the lower shell, and a second support block is fixedly connected to the bottom end inside the upper shell. Grooves are formed on the opposite sides of the first support block and the second support block. A hollow cylinder is placed between the two grooves. A plurality of first partition blocks are fixedly connected to the inside of the hollow cylinder. A second partition block is fixedly connected above each first partition block. A second flame arrestor plate is placed on the lower surface of each first partition block, and a first flame arrestor plate is placed on the upper surface of each second partition block. The structure of the utility model is simple and worthy of promotion.

[0004] The existing flame arrestor structure blocks the propagation path of flames and heat radiation by being installed on petrochemical pipelines, effectively isolating and controlling the spread of fire. After long-term use, dust particles are easily attached to the inside of the flame arrestor core in the flame arrestor structure, causing blockage and being difficult to clean, resulting in a decline in the use effect of the flame arrestor structure and poor anti-blocking effect of the flame arrestor structure. Therefore, a flame arrestor structure for petrochemical safety production is proposed to solve the above problems. Content of the Utility Model

[0005] In order to make up for the deficiencies of the prior art and solve the problems existing in the prior art, the utility model proposes a flame arrestor structure for petrochemical safety production.

[0006] The technical solution adopted by the present utility model to solve its technical problems is a flame arrester structure for petrochemical safety production, including a lower housing. A controller is installed on the side wall of the lower housing. A plurality of chutes are opened on the inner wall of the lower housing. Sliders are assembled in the chutes. A lifting ring is installed on the sliders. An iron sheet is installed on the bottom side of the lifting ring. The iron sheet is of a ring structure. A fixed ring is installed on the inner wall of the lower housing. A pulse electromagnet is installed on the fixed ring. The pulse electromagnet is of a ring structure. The pulse electromagnet is connected to the controller through an internal circuit. A plurality of springs are installed between the fixed ring and the lifting ring. A support frame is installed on the top side of the lifting ring. A support rod is installed on the support frame. A thread is opened on the top side of the support rod. A fixed cover is installed on the support rod through the thread. A flame arrester core is placed on the support frame. The flame arrester core is made of stainless steel. The inside of the flame arrester core is composed of multiple layers of overlapping metal corrugated nets. Through magnetization by the pulse electromagnet, the iron sheet is instantaneously attracted by the magnetic force generated by the pulse electromagnet and moves towards the pulse electromagnet. Then the magnetic force disappears, and the spring pushes the flame arrester core to move vertically upward. The cooperation of the magnetic force and the thrust of the spring enables the flame arrester core to generate high-frequency vibration. During the vibration process of the flame arrester core, the particles attached to it are shaken off, avoiding blockage in the small channels inside the flame arrester core, which is beneficial to improving the anti-blocking effect of the flame arrester structure and maintaining the use effect of the flame arrester structure.

[0007] Preferably, a cylindrical housing is welded to the lower housing. An upper housing is placed on the cylindrical housing. A plurality of heat dissipation plates are installed on the outer wall of the cylindrical housing. The heat dissipation plates are of a ring structure. A first connection ring is installed on the bottom side of the lower housing. A plurality of first connection holes are opened on the first connection ring. A first mounting plate is welded to the outer wall of the lower housing. A plurality of first mounting holes are opened on the first mounting plate. A second connection ring is installed on the top side of the upper housing. A plurality of second connection holes are opened on the second connection ring. A second mounting plate is welded to the outer wall of the upper housing. A plurality of second mounting holes are opened on the second mounting plate. A plurality of bolts are installed between the second mounting plate and the first mounting plate. When the airflow with flames is transmitted through the pipeline at the front end, the flames propagate in the countless small channels of the flame arrester core. Due to the good heat conductivity of the channel walls, the heat of the flames is quickly conducted, causing the flame temperature to drop, so that the combustion cannot be maintained. At the same time, when the flames collide with the wall of the device, energy conversion occurs, reducing the temperature and intensity of the flames, thereby preventing the further propagation of the flames. By installing heat dissipation plates on the outer wall of the cylindrical housing, the heat dissipation area is increased, which is beneficial to improving the heat dissipation efficiency.

[0008] The beneficial effects of the present utility model are as follows:

[0009] 1. The utility model magnetizes through a pulsed electromagnet. When the pulsed electromagnet generates magnetic force, it instantaneously attracts the iron sheet to move towards the pulsed electromagnet. Then, the magnetic force disappears, and the spring pushes the flame arrester core to move vertically upward. The cooperation of the magnetic force and the thrust of the spring enables the flame arrester core to generate high-frequency vibration. During the vibration process of the flame arrester core, the particles attached to it are shaken off, avoiding blockage in the small channels inside the flame arrester core, which is beneficial to improving the anti-blocking effect of the flame arrester structure and maintaining the use effect of the flame arrester structure.

[0010] 2. When the utility model transmits the airflow with flame through the pipeline at the front end, the flame propagates in the countless small channels of the flame arrester core. Due to the good heat conductivity of the channel wall, the heat of the flame is quickly conducted, causing the flame temperature to drop, so that the combustion cannot be maintained. At the same time, when the flame collides with the wall of the device, energy conversion occurs, reducing the temperature and intensity of the flame, thus preventing the further propagation of the flame. By installing heat dissipation plates on the outer wall of the cylindrical shell, the heat dissipation area is increased, which is beneficial to improving the heat dissipation efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0012] Figure 1 It is a first perspective three-dimensional structure schematic diagram;

[0013] Figure 2 It is a three-dimensional structure schematic diagram inside the lower shell;

[0014] Figure 3 It is a three-dimensional structure schematic diagram at the support frame;

[0015] Figure 4 It is a three-dimensional structure schematic diagram at the flame arrester core;

[0016] Figure 5 It is a three-dimensional structure schematic diagram at the heat dissipation plate.

[0017] In the figure: 1, lower shell; 2, controller; 3, chute; 4, slider; 5, lifting ring; 6, iron sheet; 7, fixed ring; 8, pulsed electromagnet; 9, spring; 10, support frame; 11, support rod; 12, fixed cover; 13, flame arrester core; 14, cylindrical shell; 15, upper shell; 16, heat dissipation plate; 17, first connection ring; 18, first connection hole; 19, first mounting plate; 20, first mounting hole; 21, second connection ring; 22, second connection hole; 23, second mounting plate; 24, second mounting hole; 25, bolt. Detailed implementation manners

[0018] The following will clearly and completely describe the technical solutions in the embodiments of the present utility model with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0019] Please refer to Figures 1-4As shown in the figure, a flame arrester structure for petrochemical safety production includes a lower housing 1. A controller 2 is installed on the side wall of the lower housing 1. A plurality of chutes 3 are opened on the inner wall of the lower housing 1. Sliders 4 are assembled in the chutes 3. A lifting ring 5 is installed on the slider 4. An iron sheet 6 is installed on the bottom side of the lifting ring 5. The iron sheet 6 is of a ring structure. A fixing ring 7 is installed on the inner wall of the lower housing 1. A pulse electromagnet 8 is installed on the fixing ring 7. The pulse electromagnet 8 is of a ring structure. The pulse electromagnet 8 is connected to the controller 2 through an internal circuit. A plurality of springs 9 are installed between the fixing ring 7 and the lifting ring 5. A support frame 10 is installed on the top side of the lifting ring 5. A support rod 11 is installed on the support frame 10. A thread is opened on the top side of the support rod 11. A fixing cover 12 is installed on the support rod 11 through the thread. A flame arrester core 13 is placed on the support frame 10. The flame arrester core 13 is made of stainless steel. The inside of the flame arrester core 13 is composed of multiple layers of overlapping metal corrugated nets; during operation, the existing flame arrester structure blocks the propagation path of flames and heat radiation by being installed on petrochemical pipelines, effectively isolating and controlling the spread of fires. After the flame arrester core 13 inside the flame arrester structure has been used for a long time, dust particles are likely to adhere to its inside, causing blockage and being difficult to clean, resulting in a decline in the use effect of the flame arrester structure, and the anti-blocking effect of the flame arrester structure is poor. By fixedly installing the second connection ring 21 and the first connection ring 17 on the upper housing 15 and the lower housing 1 on the petrochemical pipeline, there are countless small channels in the flame arrester core 13. The controller 2 passes a sine current through a wire into the pulse electromagnet 8, causing the pulse electromagnet 8 to be magnetized. The sine current will switch between positive and negative half-cycles. At the moment when the sine current switches between positive and negative half-cycles, the current disappears. The switching frequency of the positive and negative half-cycles of the sine current is very high. Therefore, the magnetic field frequency generated by the pulse electromagnet 8 is also very high. The magnetic force generated by the pulse electromagnet 8 is also instantaneous. The magnetic force generated by the pulse electromagnet 8 instantaneously attracts the iron sheet 6 to move towards the pulse electromagnet 8. The iron sheet 6 drives the lifting ring 5 to move vertically downward. The lifting ring 5 drives the support frame 10 to move vertically downward. The support frame 10 drives the flame arrester core 13 thereon to move vertically downward. Then the magnetic force disappears. Under the thrust of the spring 9, the spring 9 pushes the lifting ring 5 to move vertically upward. The lifting ring 5 drives the support frame 10 to move vertically upward. The support frame 10 drives the flame arrester core 13 to move vertically upward. Due to the extremely high switching frequency of the occurrence and disappearance of the magnetic field, the cooperation of the magnetic force and the thrust of the spring 9 causes the flame arrester core 13 to generate high-frequency vibrations. During the vibration process of the flame arrester core 13, the particles attached to it are shaken off, avoiding blockage in the small channels inside the flame arrester core 13, which is beneficial to improving the anti-blocking effect of the flame arrester structure and maintaining the use effect of the flame arrester structure.

[0020] Please refer to Figure 5As shown, a cylindrical shell 14 is welded to the lower shell 1, and an upper shell 15 is placed on the cylindrical shell 14. A plurality of heat dissipation plates 16 are installed on the outer wall of the cylindrical shell 14. The heat dissipation plates 16 are in an annular structure. A first connection ring 17 is installed on the bottom side of the lower shell 1, and a plurality of first connection holes 18 are formed in the first connection ring 17. A first mounting plate 19 is welded to the outer wall of the lower shell 1, and a plurality of first mounting holes 20 are formed in the first mounting plate 19. A second connection ring 21 is installed on the top side of the upper shell 15, and a plurality of second connection holes 22 are formed in the second connection ring 21. A second mounting plate 23 is welded to the outer wall of the upper shell 15, and a plurality of second mounting holes 24 are formed in the second mounting plate 23. A plurality of bolts 25 are installed between the second mounting plate 23 and the first mounting plate 19; during operation, after the existing flame retardant structure retards the fire in the petrochemical pipeline, it cannot dissipate heat quickly, resulting in poor heat dissipation effect on the device. When the airflow with flames is transmitted through the pipeline at the front end, the flames propagate in the countless small channels of the flame retardant core 13. Due to the good heat conductivity of the channel walls, the heat of the flames is quickly conducted, causing the flame temperature to drop, so that the combustion cannot be maintained. At the same time, when the flames collide with the wall of the device, energy conversion occurs, reducing the temperature and intensity of the flames, thereby preventing the further propagation of the flames. By installing the heat dissipation plates 16 on the outer wall of the cylindrical shell 14, the heat dissipation area is increased, which is beneficial to improving the heat dissipation efficiency.

[0021] Working principle: The existing fire-blocking structure blocks the propagation path of flames and heat radiation by being installed on petrochemical pipelines, effectively isolating and controlling the spread of fire. After long-term use, the fire-blocking core 13 inside the fire-blocking structure is prone to being clogged with dust particles and is difficult to clean, resulting in a decline in the use effect of the fire-blocking structure and poor anti-blocking effect. By fixedly installing the second connecting ring 21 and the first connecting ring 17 on the upper shell 15 and the lower shell 1 on the petrochemical pipeline, there are countless small channels in the fire-blocking core 13. The controller 2 passes a sine current through a wire into the pulsed electromagnet 8, causing the pulsed electromagnet 8 to be magnetized. The sine current will switch between positive and negative half-cycles. At the moment of each positive and negative half-cycle switch of the sine current, the current disappears. Since the switching frequency of the positive and negative half-cycles of the sine current is very high, the magnetic field frequency generated by the pulsed electromagnet 8 is also very high. The magnetic force generated by the pulsed electromagnet 8 is also instantaneous. At the moment when the pulsed electromagnet 8 generates magnetic force, it attracts the iron sheet 6 to move towards the pulsed electromagnet 8. The iron sheet 6 drives the lifting ring 5 to move vertically downward, the lifting ring 5 drives the support frame 10 to move vertically downward, and the support frame 10 drives the fire-blocking core 13 thereon to move vertically downward. Then the magnetic force disappears, and under the thrust of the spring 9, the spring 9 pushes the lifting ring 5 to move vertically upward, the lifting ring 5 drives the support frame 10 to move vertically upward, and the support frame 10 drives the fire-blocking core 13 to move vertically upward. Due to the extremely high switching frequency of the occurrence and disappearance of the magnetic field, the cooperation of the magnetic force and the thrust of the spring 9 causes the fire-blocking core 13 to generate high-frequency vibration. During the vibration process of the fire-blocking core 13, the particles attached to it are shaken off, avoiding blockage in the small channels inside the fire-blocking core 13, which is beneficial to improving the anti-blocking effect of the fire-blocking structure and maintaining the use effect of the fire-blocking structure. The existing fire-blocking structure cannot dissipate heat quickly after blocking the petrochemical pipeline, resulting in poor heat dissipation effect of the device. When a gas flow with flames is transmitted through the pipeline at the front end, the flames propagate in the countless small channels of the fire-blocking core 13. Due to the good heat conductivity of the channel walls, the heat of the flames is quickly conducted, causing the flame temperature to drop, so that combustion cannot be maintained. At the same time, when the flames collide with the wall of the device, energy conversion occurs, reducing the temperature and intensity of the flames, thereby preventing the further propagation of the flames. By installing heat dissipation plates 16 on the outer wall of the cylindrical shell 14, the heat dissipation area is increased, which is beneficial to improving the heat dissipation efficiency.

[0022] The above shows and describes the basic principle, main features and advantages of the present invention. Those skilled in the art of this industry should understand that the present invention is not limited by the above embodiments. What is described in the above embodiments and the specification only illustrates the principle of the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the present invention claimed.

Claims

1. A fire - blocking structure for petrochemical safety production, characterized in that: It includes a lower housing (1), a controller (2) is installed on the side wall of the lower housing (1), a plurality of chutes (3) are formed on the inner wall of the lower housing (1), sliders (4) are assembled in the chutes (3), a lifting ring (5) is installed on the sliders (4), an iron sheet (6) is installed on the bottom side of the lifting ring (5), the iron sheet (6) is of an annular structure, a fixed ring (7) is installed on the inner wall of the lower housing (1), a pulse electromagnet (8) is installed on the fixed ring (7), the pulse electromagnet (8) is of an annular structure, the pulse electromagnet (8) is connected to the controller (2) through an internal circuit, a plurality of springs (9) are installed between the fixed ring (7) and the lifting ring (5), a support frame (10) is installed on the top side of the lifting ring (5), a support rod (11) is installed on the support frame (10), a thread is provided on the top side of the support rod (11), a fixed cover (12) is installed on the support rod (11) through the thread, a fire retardant core (13) is placed on the support frame (10), the fire retardant core (13) is made of stainless steel, and the inside of the fire retardant core (13) is composed of multiple layers of overlapping metal corrugated nets.

2. The flame arrester structure for petrochemical safety production according to claim 1, characterized in that: A cylindrical housing (14) is welded on the lower housing (1), and an upper housing (15) is placed on the cylindrical housing (14).

3. A flame arrester structure for petrochemical safety production according to claim 2, characterized in that: A plurality of heat dissipation plates (16) are installed on the outer wall of the cylindrical housing (14), and the heat dissipation plates (16) are of an annular structure.

4. A flame arrester structure for petrochemical safety production according to claim 1, characterized in that: A first connection ring (17) is installed on the bottom side of the lower housing (1), and a plurality of first connection holes (18) are formed in the first connection ring (17).

5. A flame arrester structure for petrochemical safety production according to claim 1, characterized in that: A first mounting plate (19) is welded on the outer wall of the lower housing (1), and a plurality of first mounting holes (20) are formed in the first mounting plate (19).

6. The fire prevention structure for petrochemical safety production according to claim 2, characterized in that: A second connection ring (21) is installed on the top side of the upper housing (15), a plurality of second connection holes (22) are formed in the second connection ring (21), a second mounting plate (23) is welded on the outer wall of the upper housing (15), a plurality of second mounting holes (24) are formed in the second mounting plate (23), and a plurality of bolts (25) are installed between the second mounting plate (23) and the first mounting plate (19).

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