A fireproof and explosion-resistant isolation structure for chemical plants

Abstract

The present invention discloses a fireproof and explosion-proof isolation structure for a chemical plant, which includes a top plate, two side plates, a front panel and a rear panel. The top of the two side plates is fixedly provided with the top plate, and the front and rear sides of the two side plates are respectively fixedly provided with the front panel and the rear panel. Door frames are respectively arranged on the two side plates, and protective doors are installed on the door frames, forming a fireproof and explosion-proof cabinet body. An air storage tank for storing fire extinguishing gas is installed on the bottom surface of the top plate, and an exhaust mechanism is arranged on the air storage tank. By arranging the air storage tank and the exhaust mechanism in the fireproof and explosion-proof cabinet body, when an explosion occurs to the items in the device, the impact force generated by the explosion will release the fire extinguishing gas stored in the air storage tank through the exhaust mechanism, thereby playing a role in extinguishing the fire.

Description

Technical Field

[0001] The present invention relates to the technical field of chemical plant safety, and particularly relates to a fire-proof and explosion-resistant isolation structure for chemical plants. Background Art

[0002] A chemical plant refers to a factory engaged in the chemical industry. Along with the rapid development of the Chinese economy, the prices of chemical products in China have been rising steadily. Since the chemical industry is engaged in the chemical industry within the chemical plant, and the chemical industry refers to the process industry in which chemical methods play a major role in the production process. Chemical methods generally refer to the separation of reagents using chemical reagents. Since chemical supplies are flammable, explosive, etc., it is easy to cause fires and explosions accidentally, bringing devastating harm. Therefore, a fire-proof and explosion-resistant isolation structure is needed to isolate such items.

[0003] Chinese Patent No. CN202122699023.4 discloses a fire-proof and explosion-resistant cabinet, including a cabinet body. A venting opening is provided at the top of the cabinet body. A fire-proof cabinet door is installed on one side of the cabinet body. The cabinet body includes a frame and steel plates. Steel plates are installed on both the outer side and the inner side of the frame. Fire-proof cotton is filled between the sandwich layers formed by the steel plates. In this utility model, by filling fire-proof cotton and a cooling medium between the sandwich layers of the steel plates, the fire resistance time of the cabinet body can be increased in case of a fire, thereby enhancing the safety performance.

[0004] However, the above technical solutions still have the following deficiencies: they can only isolate fires and explosions, and cannot extinguish fires inside the cabinet, and the safety needs to be improved. Summary of the Invention

[0005] In view of the problems existing in the prior art, the purpose of the present invention is to provide a fire-proof and explosion-resistant isolation structure for chemical plants. When an explosion occurs to the items inside the cabinet, the impact force generated by the explosion will release the fire extinguishing gas stored in the gas storage tank through the exhaust mechanism, thereby solving the problem of fire extinguishing.

[0006] The technical solution of the present invention is as follows:

[0007] A fire-proof and explosion-resistant isolation structure for chemical plants includes a top plate, two side plates, a front panel and a rear panel. The top plate is fixedly provided at the top of the two side plates. The front panel and the rear panel are respectively fixedly provided on the front and rear sides of the two side plates. Door frames are respectively provided on the two side plates, and a protective door is installed on the door frames, constituting a fire-proof and explosion-resistant cabinet body. An air storage tank for storing fire extinguishing gas is installed on the bottom surface of the top plate, and an exhaust mechanism is provided on the air storage tank.

[0008] Further, the exhaust mechanism includes a fixed cylinder, a piston piece and a piston rod. The fixed cylinder penetrates through the bottom surface of the air storage tank and is installed on the inner top surface of the air storage tank. A set of ventilation holes are provided on the fixed cylinder inside the air storage tank. A piston piece is slidably connected inside the fixed cylinder. A piston rod is installed on the bottom surface of the piston piece. A pushing component for pushing the piston rod to move upward is provided on the top plate.

[0009] Further, the pushing component includes a set of telescopic rods, a set of mounting blocks and a movable plate. A pair of telescopic rods are fixedly provided on the bottom surface of the top plate. A mounting block is installed at the lower end of each telescopic rod. Slots are provided on the opposite sides of the two mounting blocks. A movable plate is inserted between the two slots. The top surface of the movable plate is in contact with the lower end of the piston rod.

[0010] Further, a second fixing block and a third fixing block are sequentially installed on the inner wall of the fixed cylinder from top to bottom; two elastic plates are installed on the bottom surface of the piston piece. A first fixing block is installed on each of the opposite sides of the two elastic plates. The first fixing block is located between the second fixing block and the third fixing block.

[0011] Further, an installation cylinder is installed on the inner top surface of the air storage tank. Internal threads are provided on the inner wall of the installation cylinder. External threads are provided on the outer surface of the fixed cylinder. The fixed cylinder is threadedly connected to the installation cylinder. A sealing sleeve is fixedly sleeved on the fixed cylinder.

[0012] Further, the sealing sleeve is made of rubber.

[0013] Further, an injection pipe is installed on the top surface of the top plate. A one-way valve is installed inside the injection pipe. One end of the injection pipe penetrates through the top plate and is fixedly connected and communicated with the air storage tank. A sealing plug is inserted into the other end of the injection pipe.

[0014] Further, a number of threaded cylinders are installed on both of the two side plates. Mounting bolts matching the threaded cylinders are installed through the rear panel. One ends of the mounting bolts are respectively threadedly connected to their corresponding threaded cylinders.

[0015] Further, mounting plates are installed on the side plates, the front panel and the rear panel. A set of mounting holes are provided through the mounting plates.

[0016] Further, handles are installed on the opposite sides of the two side plates. The handles are made of stainless steel.

[0017] Compared with the prior art, the beneficial effects of the present invention:

[0018] 1) In the present invention, by arranging a gas storage tank and an exhaust mechanism inside a fireproof and explosion-proof cabinet, when an explosion occurs to the articles inside the device, the impact force generated by the explosion will release the fire extinguishing gas stored in the gas storage tank through the exhaust mechanism, thereby playing a role in extinguishing the fire;

[0019] 2) In the present invention, by arranging a first fixing block, a second fixing block and a third fixing block, when the piston piece moves upward, the first fixing block will move above the second fixing block, further preventing the piston piece from moving downward by itself, and then discharging the fire extinguishing gas in the gas storage tank through the ventilation holes and the fixed cylinder, thereby playing a role in extinguishing the fire;

[0020] 3) In the present invention, by arranging an elastic plate, after the fire extinguishing gas in the gas storage tank is used for fire extinguishing once, by squeezing the two elastic plates in opposite directions and then pulling the elastic plates downward, the piston piece is driven to move downward, so that the piston piece re-blocks the ventilation holes, thus facilitating the next use;

[0021] 4) On the top surface of the top plate of the present invention, an injection pipe is installed. A one-way valve is installed inside the injection pipe, and a sealing plug is inserted at the end of the injection pipe. When the fire extinguishing gas in the gas storage tank is used up, by removing the sealing plug on the injection pipe, fire extinguishing gas is re-injected into the gas storage tank through the injection pipe, thus facilitating the next use;

[0022] 5) In the present invention, by arranging the protective door on the side, the impact on the protective door during an explosion accident can be avoided, which is convenient for protecting the protective door. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 is a top view structural schematic diagram of the present invention;

[0024] Figure 2 is a front view structural schematic diagram of the present invention;

[0025] Figure 3 is a rear view of the present invention;

[0026] Figure 4 is a side view of the present invention;

[0027] Figure 5 is of the present invention Figure 1 an enlarged schematic diagram of part A;

[0028] Figure 6 is of the present invention Figure 2 an enlarged schematic diagram of part B;

[0029] Figure 7 is of the present invention Figure 2 an enlarged schematic diagram of part C;

[0030] Figure 8 is of the present invention Figure 7 an enlarged schematic diagram of part D.

[0031] In the figure: 11, top plate; 12, side plate; 13, front panel; 14, door frame; 15, rear panel; 16, mounting plate; 17, mounting hole; 18, handle; 19, protective door; 21, mounting bolt; 22, threaded cylinder; 31, telescopic rod; 32, mounting block; 33, movable plate; 4, gas storage tank; 41, injection pipe; 42, one-way valve; 43, sealing plug; 44, mounting cylinder; 5, fixed cylinder; 51, ventilation hole; 52, piston piece; 53, piston rod; 54, sealing sleeve; 55, elastic plate; 56, first fixing block; 57, second fixing block; 58, third fixing block. Detailed implementation manner

[0032] In order to make the technical means, creative features, achieved purposes and functions of the present invention easy to understand, the present invention will be further described below in conjunction with specific embodiments and drawings. However, the following embodiments are only the preferred embodiments of the present invention, not all of them. Based on the embodiments in the implementation manner, other embodiments obtained by those skilled in the art without creative labor all belong to the protection scope of the present invention. Embodiment 1

[0033] As Figures 1 - 8 shown, a fireproof and explosion-proof isolation structure for a chemical plant includes a top plate 11. A front panel 13, two side plates 12 and a rear panel 15 are fixedly connected to the bottom surface of the top plate 11. Two door frames 14 are respectively provided on the two side plates. A protective door 19 is installed on each door frame 14 to form a fireproof and explosion-proof cabinet body. A gas storage tank 4 for storing fire extinguishing gas is installed on the bottom surface of the top plate 11. The fire extinguishing gas is carbon dioxide, and an exhaust mechanism is provided on the gas storage tank 4.

[0034] In this embodiment, specifically, the exhaust mechanism includes a fixed cylinder 5. The fixed cylinder 5 penetrates the bottom surface of the gas storage tank 4 and is installed on the inner top surface of the gas storage tank 4. A group of ventilation holes 51 are provided in the fixed cylinder 5 located inside the gas storage tank 4. A piston piece 52 is slidably connected in the fixed cylinder 5. A piston rod 53 is installed on the bottom surface of the piston piece 52. A pushing component for pushing the piston rod 53 to move upward is provided on the top plate 11; when the pushing component moves the piston rod 53 upward, the piston rod 53 will push the piston piece 52 to move upward, so that the piston piece 52 no longer blocks the ventilation holes 51, and then releases the fire extinguishing gas stored in the gas storage tank 4, thereby playing a role in extinguishing fire.

[0035] In this embodiment, specifically, the pushing component includes two telescopic rods 31. Installation blocks 32 are installed at the lower ends of the two telescopic rods 31. Slots are formed on the opposite sides of the two installation blocks 32. A movable plate 33 is inserted between the two slots. The top surface of the movable plate 33 contacts the lower end of the piston rod 53. When an item inside the device explodes, the impact force generated by the explosion will push the movable plate 33 upward, thereby pushing the two telescopic rods 31 to expand and contract. The upwardly moving movable plate 33 will push the piston rod 53 and the piston piece 52 upward, so that the piston piece 52 no longer blocks the ventilation hole 51.

[0036] In this embodiment, specifically, a plurality of threaded cylinders 22 are installed on the two side plates 12. Mounting bolts 21 matching the threaded cylinders 22 are installed through the rear panel 15. One ends of the multiple mounting bolts 21 are respectively threadedly connected to the multiple threaded cylinders 22. By providing the mounting bolts 21 and the threaded cylinders 22, it is convenient to install the rear panel 15 on the two side plates 12.

[0037] In this embodiment, specifically, mounting plates 16 are installed on the side plates 12, the front panel 13, and the rear panel 15. A plurality of mounting holes 17 are formed through the mounting plates 16. By providing the mounting plates 16 and the mounting holes 17, it is convenient to fix the side plates 12, the front panel 13, and the rear panel 15 to the ground.

[0038] In this embodiment, specifically, handles 18 are installed on the opposite sides of the two side plates 12. The handles 18 are made of stainless steel. Stainless steel is the abbreviation of stainless acid-resistant steel. Steel types that are resistant to weak corrosive media such as air, steam, and water or have stainless properties are called stainless steel; while steel types that are resistant to chemical corrosive media (chemical corrosion such as acids, alkalis, and salts) are called acid-resistant steel. By providing the handles 18, it is convenient to carry and move the device.

[0039] Working principle: Flammable and explosive items are stored in a chemical plant, and this device is required to isolate such items. During specific use, by lifting the handles 18, the two side plates 12 are lifted and moved, so that the items to be explosion-proof are placed between the two side plates 12. Then, the rear panel 15 is installed on the two side plates 12 through the multiple mounting bolts 21, thereby surrounding the items to be explosion-proof. Then, the multiple mounting plates 16 are fixed to the ground by using multiple steel nails to penetrate the mounting holes 17.

[0040] When an item inside the device explodes, the impact force generated by the explosion will push the movable plate 33 upward, thereby pushing the two telescopic rods 31 to expand and contract. The upwardly moving movable plate 33 will push the piston rod 53 and the piston piece 52 upward, so that the piston piece 52 no longer blocks the ventilation hole 51, thus facilitating the release of the fire extinguishing gas stored in the gas storage tank 4, thereby playing a role in extinguishing the fire.

[0041] Among them, by arranging two protective doors 19 on the side, the protective doors 19 can be avoided from being impacted in an explosion accident, which facilitates the protection of the protective doors 19. At the same time, it can also prevent the debris produced by the explosion from affecting the normal opening of the protective doors 19. Example 2

[0042] like Figure 7 As shown, while other parts are the same as those in Example 1, the difference between this embodiment and Example 1 is that a second fixing block 57 and a third fixing block 58 are installed on the inner wall of the fixed cylinder 5 in sequence from top to bottom; two elastic plates 55 are installed on the bottom surface of the piston plate 52, and a first fixing block 56 is installed on the opposite sides of the two elastic plates 55, and the first fixing block 56 is located between the second fixing block 57 and the third fixing block 58.

[0043] Working principle: When the device inside this device explodes, the impact force generated by the explosion will push the movable plate 33 to move upward, and then push the two telescopic rods 31 to extend and retract. The upward moving movable plate 33 will push the piston rod 53 and the piston plate 52 to move upward. When the piston plate 52 moves upward, it will drive the two elastic plates 55 to move upward and cause the two elastic plates 55 to deform, so that the first fixed block 56 moves to the second fixed block 57, thereby preventing the piston plate 52 from moving downward on its own, thereby facilitating the discharge of the fire extinguishing gas in the gas storage box 4 through the vent 51 and the fixed cylinder 5, thereby playing a fire extinguishing role. Example 3

[0044] like Figure 8 As shown, while all other aspects are identical to those of Example 1, this embodiment differs from Example 1 in that a mounting tube 44 is mounted on the inner top surface of the air storage tank 4. The inner wall of the mounting tube 44 is internally threaded. The outer surface of the fixing tube 5 is internally threaded, and the fixing tube 5 is threadedly connected to the mounting tube 44. A sealing sleeve 54 is fixedly mounted on the fixing tube 5. The sealing sleeve 54 is made of rubber. Rubber is a highly elastic polymer material with reversible deformation. It is highly elastic at room temperature and can undergo significant deformation under minimal external force, returning to its original shape upon removal of the external force. Rubber is a completely amorphous polymer with a low glass transition temperature and a high molecular weight, often exceeding several hundred thousand.

[0045] Working principle: After the fire extinguishing gas in the gas storage box 4 is used to extinguish a fire, the position of the piston plate 52 needs to be reset for the next use. The specific operation is as follows: the movable plate 33 is removed from between the two mounting blocks 32, and then the two elastic plates 55 are squeezed in opposite directions, so that the two elastic plates 55 drive the two first fixed blocks 56 to move in opposite directions, and then the elastic plates 55 are pulled downward to drive the piston plate 52 to move downward, so that the first fixed block 56 is located between the second fixed block 57 and the third fixed block 58, so that the piston plate 52 blocks the vent hole 51 again.

[0046] When resetting the position of the piston piece 52, the fixed cylinder 5 can also be rotated to separate the fixed cylinder 5 from the mounting cylinder 44, and then the fixed cylinder 5 can be taken out of the air storage tank 4. Then, the two elastic plates 55 are squeezed in opposite directions, and the piston piece 52 is pressed downward, so that the first fixing block 56 is located between the second fixing block 57 and the third fixing block 58, and the piston piece 52 re-blocks the ventilation hole 51. Then, the fixed cylinder 5 is reconnected to the mounting cylinder 44.

[0047] Among them, by providing the mounting cylinder 44, it is convenient to remove the fixed cylinder 5 from the air storage tank 4, so as to facilitate the replacement of the fixed cylinder 5 in the later stage. Embodiment 4

[0048] As Figure 6 shown, under the condition that other parts are the same as those in Embodiment 1, the difference between this embodiment and Embodiment 1 is that an injection gas pipe 41 is installed on the top surface of the top plate 11, a one-way valve 42 is installed in the injection gas pipe 41, one end of the injection gas pipe 41 penetrates through the top plate 11 and is fixedly connected and communicated with the air storage tank 4, and a sealing plug 43 is inserted on the other end of the injection gas pipe 41.

[0049] Working principle: After the fire extinguishing gas in the air storage tank 4 extinguishes the fire once, then reset the position of the piston piece 52 to make the piston piece 52 block the ventilation hole 51 again. Then, pull out the sealing plug 43 on the injection gas pipe 41, and inject the fire extinguishing gas into the air storage tank 4 again through the injection gas pipe 41, so as to facilitate the next use.

[0050] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. The above embodiments and the descriptions in the specification are only preferred examples of the present invention and do not limit 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. The scope of protection claimed by the present invention is defined by the appended claims and their equivalents.

Claims

1. A fireproof and explosion-resistant isolation structure for a chemical plant, comprising a top plate (11), two side plates (12), a front panel (13) and a rear panel (15). The top plate (11) is fixedly provided at the tops of the two side plates (12). The front panel (13) and the rear panel (15) are respectively fixedly provided on the front and rear surfaces of the two side plates (12). Door frames (14) are respectively provided on the two side plates (12), and a protective door (19) is installed on the door frames (14) to form a fireproof and explosion-resistant cabinet body, characterized in that A gas storage tank (4) for storing fire extinguishing gas is installed on the bottom surface of the top plate (11), and an exhaust mechanism is provided on the gas storage tank (4); The exhaust mechanism includes a fixed cylinder (5), a piston piece (52) and a piston rod (53). The fixed cylinder (5) penetrates the bottom surface of the gas storage tank (4) and is installed on the inner top surface of the gas storage tank (4). A set of ventilation holes (51) are provided in the fixed cylinder (5) located inside the gas storage tank (4). A piston piece (52) is slidably connected inside the fixed cylinder (5). A piston rod (53) is installed on the bottom surface of the piston piece (52). A pushing component for pushing the piston rod (53) to move upward is provided on the top plate (11); The pushing component includes a set of telescopic rods (31), a set of mounting blocks (32) and a movable plate (33). A pair of telescopic rods (31) are fixedly provided on the bottom surface of the top plate (11). The lower end of each telescopic rod (31) is installed with a mounting block (32). Slots are provided on the opposite sides of the two mounting blocks (32). A movable plate (33) is inserted between the two slots. The top surface of the movable plate (33) is in contact with the lower end of the piston rod (53); A second fixing block (57) and a third fixing block (58) are sequentially installed on the inner wall of the fixed cylinder (5) from top to bottom; Two elastic plates (55) are installed on the bottom surface of the piston piece (52). A first fixing block (56) is installed on each of the opposite sides of the two elastic plates (55). The first fixing block (56) is located between the second fixing block (57) and the third fixing block (58); An injection pipe (41) is installed on the top surface of the top plate (11). A one-way valve (42) is installed inside the injection pipe (41). One end of the injection pipe (41) penetrates the top plate (11) and is fixedly connected and communicated with the gas storage tank (4). A sealing plug (43) is inserted into the other end of the injection pipe (41).

2. The fireproof and explosion-resistant isolation structure for a chemical plant according to claim 1, wherein An installation cylinder (44) is installed on the inner top surface of the gas storage tank (4). Internal threads are provided on the inner wall of the installation cylinder (44). External threads are provided on the outer surface of the fixed cylinder (5). The fixed cylinder (5) is threadedly connected to the installation cylinder (44). A sealing sleeve (54) is fixedly sleeved on the fixed cylinder (5).

3. A fireproof and explosion-resistant isolation structure for a chemical plant according to claim 2, characterized in that The sealing sleeve (54) is made of rubber material.

4. A fireproof and explosion-resistant isolation structure for a chemical plant according to claim 1, characterized in that A number of threaded cylinders (22) are installed on both of the two side plates (12). Installation bolts (21) matching the threaded cylinders (22) are installed through the rear panel (15). One end of each installation bolt (21) is threadedly connected to its corresponding threaded cylinder (22).

5. The fireproof and explosion-proof isolation structure for a chemical plant according to claim 4, characterized in that Mounting plates (16) are installed on the side plates (12), the front panel (13) and the rear panel (15). A set of mounting holes (17) are provided through the mounting plates (16).

6. The fireproof and explosion-resistant isolation structure for a chemical plant according to claim 5, characterized in that Handles (18) are installed on the opposite sides of the two side plates (12). The handles (18) are made of stainless steel.

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