Pressure relief device of reaction kettle

Abstract

The utility model discloses a pressure relief device of a reaction kettle, and particularly relates to the technical field of pressure relief of reaction kettles. The pressure relief device comprises a reaction kettle body, the top end of the reaction kettle body is provided with a reaction kettle pressure relief device, the reaction kettle pressure relief device comprises a pressure relief shell, positioning holes are formed in the periphery of the inner side of the pressure relief shell, positioning rods are inserted into the positioning holes, pressure relief cylinders are fixedly connected to the positioning rods, and pressure relief holes are formed in the bottom sides of the pressure relief cylinders. A pressure relief assembly is installed in the pressure relief cylinder and comprises a top cover, the top cover is connected with the top side of the pressure relief shell through a bolt, the bottom side of the top cover is fixedly connected with a hollow cylinder, the bottom side of the hollow cylinder is fixedly connected with a cylinder cover, and the cylinder cover is connected with the pressure relief cylinder through a bolt. According to the pressure relief device, under the action of the telescopic rod and the spring, the rubber plug moves upwards to be far away from the pressure relief hole for pressure relief, pressure is discharged through the vent groove and the vent hole, in addition, the pressing plate extrudes the extrusion block by rotating the screw rod, the compression amount of the spring can be changed, and the pressure relief pressure can be adjusted.

Description

Technical Field

[0001] This utility model relates to the field of pressure relief technology for reaction vessels, specifically a pressure relief device for reaction vessels. Background Technology

[0002] Reactors are typically sealed containers to ensure effective internal reactions. However, the gases produced during the reaction can easily cause the internal pressure to rise. The main function of a reactor pressure relief device is to prevent damage or explosion due to overpressure, thereby protecting personnel and property. Traditional pressure relief devices are usually disposable and require reinstallation after use, which is very troublesome. Moreover, the pressure relief device remains open even when the internal pressure leaks to the normal value, affecting the purity of the substances inside the reactor.

[0003] Meanwhile, traditional pressure relief devices use an integrated installation method, and sometimes the cylinder and other structures are damaged due to large impacts during the pressure relief process, requiring replacement. However, the integrated structure is not convenient for disassembly and replacement, which affects the pressure relief of the reactor. Utility Model Content

[0004] Technical problem: Existing pressure relief devices use an integrated installation method, and sometimes the cylinder and other structures are damaged due to large impacts during the pressure relief process, requiring replacement. However, the integrated structure is not convenient for disassembly and replacement, which affects the pressure relief of the reactor. This utility model proposes a pressure relief device for a reactor.

[0005] Technical Solution: A pressure relief device for a reactor includes a reactor body. A pressure relief device is installed on the top of the reactor body. The pressure relief device includes a pressure relief shell. Positioning holes are formed around the inner side of the pressure relief shell. Positioning rods are inserted into each positioning hole. A pressure relief cylinder is fixedly connected to each positioning rod. A pressure relief hole is formed on the bottom side of the pressure relief cylinder. A pressure relief assembly is installed inside the pressure relief cylinder. The pressure relief assembly includes a top cover. The top cover is connected to the top side of the pressure relief shell by bolts. A hollow cylinder is fixedly connected to the bottom side of the top cover. A cylinder cover is fixedly connected to the bottom side of the hollow cylinder. The cylinder cover is bolted to the pressure relief cylinder.

[0006] Preferably, the pressure relief shell has vent holes spaced equidistantly around its upper perimeter.

[0007] Preferably, a screw is threadedly connected to the center of the top cover, a pressure plate is fixedly connected to the bottom side of the screw, and an extrusion block is slidably connected inside the hollow cylinder, with the extrusion block located below the pressure plate.

[0008] Preferably, a telescopic rod is bolted to the bottom side of the extrusion block, and a spring is provided on the outside of the telescopic rod.

[0009] Preferably, a rubber plug is provided on the bottom side of the telescopic rod and the spring, and a sealing element is provided on the outer wall of the rubber plug.

[0010] Preferably, the rubber plug is disposed inside the pressure relief hole, and the rubber plug is in contact with the inner wall of the pressure relief hole.

[0011] Preferably, a ventilation groove is provided at the edge of the cylinder cover.

[0012] Beneficial effects: The significant features of this utility model compared with the prior art are:

[0013] (1) This utility model uses bolts to connect the pressure relief device of the reactor to the pressure relief shell. When it needs to be replaced or repaired, the top cover is removed and the whole thing is pulled out. The bolts on the cylinder cover are removed to separate it from the pressure relief cylinder. The extrusion block, telescopic rod, spring and rubber plug can be taken out and replaced and maintained. The split type is more convenient to disassemble and repair than the integrated installation method in the comparison document.

[0014] (2) When the pressure is released, the rubber plug is squeezed. Under the action of the telescopic rod and the spring, the rubber plug moves up and moves away from the pressure relief hole to release pressure. The pressure is discharged through the vent groove and the vent hole. In addition, by rotating the screw, the pressure plate squeezes the compression block, which can change the compression of the spring and adjust the pressure of the pressure relief. Attached Figure Description

[0015] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0016] Figure 2 This is a cross-sectional view of the pressure relief device for the reactor of this utility model;

[0017] Figure 3 This is a schematic diagram of the disassembled structure of this utility model;

[0018] Figure 4 This is a schematic diagram of the structure of the rubber plug of this utility model;

[0019] In the diagram: 1. Reactor body; 2. Reactor pressure relief device; 21. Pressure relief shell; 211. Vent hole; 212. Positioning hole; 22. Pressure relief cylinder; 221. Pressure relief hole; 222. Positioning rod; 23. Pressure relief assembly; 231. Top cover; 232. Screw; 233. Pressure plate; 234. Extrusion block; 235. Cylinder cover; 236. Hollow cylinder; 237. Vent groove; 238. Telescopic rod; 239. Spring; 2391. Rubber plug; 2392. Seal. Detailed Implementation

[0020] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0021] This utility model provides a technical solution: such as Figure 1 As shown in this embodiment, a reactor pressure relief device includes a reactor body 1, and a reactor pressure relief device 2 is installed on the top of the reactor body 1.

[0022] like Figure 3 and Figure 4 As shown, the pressure relief device 2 of the reactor includes a pressure relief shell 21. Vent holes 211 are equidistantly arranged around the top perimeter of the pressure relief shell 21. Positioning holes 212 are arranged around the inner perimeter of the pressure relief shell 21. Positioning rods 222 are inserted into each positioning hole 212. The positioning rods 222 and positioning holes 212 allow for the installation of a pressure relief cylinder 22. The pressure relief cylinder 22 is fixedly connected to the positioning rods 222. A pressure relief hole 221 is provided on the bottom side of the pressure relief cylinder 22. A pressure relief assembly 23 is installed inside the pressure relief cylinder 22. The pressure relief assembly 23 includes a top cover 23. 1. The top cover 231 is bolted to the top side of the pressure relief shell 21. A hollow cylinder 236 is fixedly connected to the bottom side of the top cover 231. A cylinder cover 235 is fixedly connected to the bottom side of the hollow cylinder 236. A venting groove 237 is provided at the edge of the cylinder cover 235. The cylinder cover 235 is bolted to the pressure relief cylinder 22. A telescopic rod 238 is bolted to the bottom side of the compression block 234. A spring 239 is provided on the outside of the telescopic rod 238. The telescopic rod 238 can limit the spring 239 to prevent the spring 239 from shifting during pressure relief compression. A rubber plug 2391 is provided on the bottom side of spring 238 and spring 239. A sealing element 2392 is provided on the outer wall of the rubber plug 2391. The sealing element 2392 can seal the rubber plug 2391 when there is no pressure relief. The rubber plug 2391 is located in the pressure relief hole 221. When pressure is relieved, the rubber plug 2391 is squeezed. Under the action of telescopic rod 238 and spring 239, the rubber plug 23911 moves upward and moves away from the pressure relief hole 221 to relieve pressure. The pressure is discharged through vent groove 237 and vent hole 211. The rubber plug 2391 fits against the inner wall of the pressure relief hole 221. The pressure relief device 2 of the reactor is connected to the pressure relief shell 21 by bolts. When replacement or maintenance is required, the top cover 231 is removed and the whole thing is pulled out. The bolts on the cylinder cover 235 are removed to separate it from the pressure relief cylinder 22. The extrusion block 234, telescopic rod 238, spring 239 and rubber plug 2391 can then be taken out and replaced for maintenance. The split type is more convenient for disassembly and maintenance than the integrated installation method of the comparison document.

[0023] like Figure 2As shown, a screw 232 is threadedly connected to the middle of the top cover 231, and a pressure plate 233 is fixedly connected to the bottom side of the screw 232. A compression block 234 is slidably connected inside the hollow cylinder 236. The compression block 234 is located below the pressure plate 233. By rotating the screw 232, the pressure plate 233 compresses the compression block 234, thereby changing the compression amount of the spring 239 and enabling it to adjust the pressure of the pressure relief.

[0024] This utility model provides a pressure relief device for a reactor. The specific working principle is as follows: During pressure relief, the rubber plug 2391 is lifted by the telescopic rod 238 and spring 239, allowing pressure to be released through the pressure relief hole 221 until it is discharged through the vent groove 237 and vent hole 211. When the pressure drops to a safe pressure value, the rebound force of the spring 239 is greater than the pressure generated by the gas, causing the rubber plug 2391 to reset and close the pressure relief hole 221 again, thus restoring the reactor to a safe pressure range. When the pressure relief needs to be adjusted, the user rotates the screw 232, causing the pressure plate 233 to press the compression block 234, which in turn compresses the telescopic rod 238 and spring 239. If subsequent maintenance or replacement is required, the top cover 231 can be removed and pulled out as a whole, and the bolts on the cylinder cover 235 can be removed to separate it from the pressure relief cylinder 22 for inspection.

Claims

1. A pressure relief device for a reaction vessel, comprising a reaction vessel body (1), characterized in that: The reactor body (1) is equipped with a reactor pressure relief device (2) at its top. The pressure relief device (2) of the reactor includes a pressure relief shell (21). The pressure relief shell (21) has positioning holes (212) around its inner side. Positioning rods (222) are inserted into each positioning hole (212). A pressure relief cylinder (22) is fixedly connected to the positioning rod (222). A pressure relief hole (221) is opened on the bottom side of the pressure relief cylinder (22). A pressure relief assembly (23) is installed inside the pressure relief cylinder (22). The pressure relief assembly (23) includes a top cover (231). The top cover (231) is connected to the top side of the pressure relief shell (21) by bolts. A hollow cylinder (236) is fixedly connected to the bottom side of the top cover (231). A cylinder cover (235) is fixedly connected to the bottom side of the hollow cylinder (236). The cylinder cover (235) is bolted to the pressure relief cylinder (22).

2. The pressure relief device for a reaction vessel according to claim 1, characterized in that: Ventilation holes (211) are equidistantly arranged around the top of the pressure relief shell (21).

3. The pressure relief device for a reaction vessel according to claim 1, characterized in that: The top cover (231) is threaded with a screw (232) in the middle, and a pressure plate (233) is fixedly connected to the bottom side of the screw (232). An extrusion block (234) is slidably connected inside the hollow cylinder (236), and the extrusion block (234) is located below the pressure plate (233).

4. The pressure relief device for a reaction vessel according to claim 3, characterized in that: The bottom side of the extrusion block (234) is bolted with a telescopic rod (238), and a spring (239) is provided on the outside of the telescopic rod (238).

5. A pressure relief device for a reaction vessel according to claim 4, characterized in that: The telescopic rod (238) and the bottom side of the spring (239) are provided with rubber plugs (2391), and the outer wall of the rubber plugs (2391) is provided with sealing elements (2392).

6. A pressure relief device for a reaction vessel according to claim 5, characterized in that: The rubber plug (2391) is disposed inside the pressure relief hole (221), and the rubber plug (2391) is in contact with the inner wall of the pressure relief hole (221).

7. A pressure relief device for a reaction vessel according to claim 1, characterized in that: A ventilation groove (237) is provided at the edge of the cylinder cover (235).

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