Anti-polymerization kettle bottom ball valve

Abstract

The utility model relates to an anti-polymerization kettle bottom ball valve which comprises a ball valve body used for being installed at the bottom of a reaction kettle, a valve element used for closing and opening the reaction kettle is arranged in the ball valve body, and a kettle bottom ball valve flange used for being connected with a flange of the reaction kettle is arranged on the ball valve body. A plurality of process holes used for injecting process media are formed in the circumferential direction of the kettle bottom ball valve flange and are communicated with the reaction kettle. The kettle bottom ball valve not only can prevent polymerization of materials in a'dead zone ', but also improves production efficiency, and saves labor and time cost.

Description

Technical Field

[0001] This utility model relates to the field of bottom ball valve technology, and in particular to an anti-polymerization bottom ball valve. Background Technology

[0002] The bottom ball valve is a ball valve installed at the bottom of the reactor. Its function is to control the discharge of materials inside the reactor. When the materials in the reactor participate in the reaction, the bottom ball valve is in the closed state. When the reaction is over, the bottom ball valve opens to discharge the materials. After the materials are discharged, the valve is closed.

[0003] In the petrochemical industry, such as PVC and polyolefin production, liquid materials undergo chemical reactions in reactors. During this process, the materials need to be continuously stirred by an agitator to prevent aggregation. Aggregated materials are in powder form and have an adsorption effect. They will continuously adhere to the inner walls of valves and pipes. Over time, this accumulation will cause pipe blockage and valve jamming, making it impossible to open or close the valves.

[0004] In existing reactor bottom ball valves, due to structural limitations, a "dead zone" inevitably exists between the valve core and the bottom of the reactor when the valve is closed. This "dead zone" refers to the area within the reactor where materials cannot be agitated. Because the materials in the "dead zone" cannot be stirred, they aggregate and continuously adhere to the surrounding pipe walls and the valve core. Over time, this polymer buildup accumulates, eventually clogging the pipes or even jamming the valve, severely impacting production.

[0005] The existing solution to this problem is to periodically shut down the production line, disassemble the bottom ball valve, clean the pipes and valves, and then reinstall the valves for use. This solution not only reduces the production line's efficiency but also increases time and labor costs for cleaning. Utility Model Content

[0006] The technical problem to be solved by this utility model is to provide an anti-polymerization bottom ball valve, which can not only prevent the polymerization of materials in the "dead zone", but also improve production efficiency and save labor and time costs.

[0007] The technical solution adopted by this utility model to solve its technical problem is: a bottom ball valve for preventing polymerization, including a ball valve for installation at the bottom of the reactor, wherein the ball valve is provided with a valve core for closing and opening the reactor, and a bottom ball valve flange for connecting with the flange flange of the reactor is provided on the ball valve, and a plurality of process holes for injecting process medium are provided along the circumference of the bottom ball valve flange, and the process holes are connected to the reactor.

[0008] In one embodiment, the process port of the anti-polymerization bottom ball valve is provided with a ferrule connector for injecting process media. One end of the ferrule connector is sealed to the process port, and the other end of the ferrule connector is used to connect to an external process media intake device.

[0009] In one embodiment, the process port of the anti-polymerization bottom ball valve is provided with a check valve at the end near the reactor to prevent material from flowing out of the reactor.

[0010] In one embodiment, the bottom ball valve flange of the anti-polymerization bottom ball valve is connected to the flange of the reactor via a bolt assembly.

[0011] In one embodiment, the anti-polymerization bottom ball valve is provided with a drive mechanism for rotating the valve core to open and close the reactor.

[0012] In one embodiment, the reactor containing the anti-polymerization bottom ball valve is equipped with a stirrer for stirring the materials.

[0013] In one embodiment, the process medium of the anti-polymerization bottom ball valve is water.

[0014] The beneficial effects of this application are as follows:

[0015] This application provides a bottom ball valve for preventing material aggregation in a dead zone. By setting multiple process holes on the flange of the bottom ball valve for intake of process media, the valve can prevent material aggregation in the dead zone, eliminating the need for regular cleaning, saving time and labor costs, and improving production efficiency. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the anti-polymerization bottom ball valve according to an embodiment of this application;

[0017] in:

[0018] 1. Ball valve; 11. Valve core; 12. Bottom ball valve flange; 13. Process hole; 14. Compression fitting; 15. Check valve; 16. Bolt assembly; 17. Drive mechanism; 2. Reactor; 21. Flange flange; 22. Agitator; 23. Dead zone. Detailed Implementation

[0019] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0020] like Figure 1As shown, an embodiment of this application provides an anti-polymerization bottom ball valve, including a ball valve 1 for installation at the bottom of a reactor 2. The ball valve 1 is provided with a valve core 11 for closing and opening the reactor 2. The ball valve 1 is provided with a bottom ball valve flange 12 for connection with the flange flange 21 of the reactor 2. A plurality of process holes 13 for injecting process media are provided along the circumference of the bottom ball valve flange 12. The process holes 13 are connected to the reactor 2.

[0021] Specifically, multiple process holes 13 are arranged circumferentially along the bottom ball valve flange 12. When the materials in the reactor 2 undergo a chemical reaction, the external intake device injects the process medium into the "dead zone 23" of the reactor 2 through the process holes 13. This causes the materials in the "dead zone 23" of the reactor 2 to be agitated by the stirrer 22 inside the reactor 2, effectively preventing the aggregation of materials. The input pressure of the intake device is greater than the pressure inside the reactor 2 to ensure a certain pressure difference and prevent backflow of materials in the reactor 2.

[0022] In the above structure, by setting multiple process holes 13 for receiving process media, the aggregation of materials in the "dead zone 23" of the reactor 2 can be prevented, eliminating the need for regular cleaning, saving time and labor costs, and improving production efficiency.

[0023] like Figure 1 As shown, in one embodiment, the process port 13 of the anti-polymerization bottom ball valve is provided with a ferrule connector 14 for injecting process media. One end of the ferrule connector 14 is sealed to the process port 13, and the other end is used to connect to an external process media intake device. When the ferrule connector 14 is connected to the intake device, the pressure of the injected process media is set to be greater than the pressure inside the reactor 2, ensuring a certain pressure difference. The ferrule connector 14 facilitates connection to the intake device, improves intake efficiency, and also facilitates sealing of the process port.

[0024] like Figure 1 As shown, in one embodiment, a check valve 15 is provided at the end of the process port 13 of the anti-polymerization bottom ball valve near the reactor 2 to prevent material from flowing out of the reactor 2. The check valve 15 effectively prevents material from flowing out of the reactor 2.

[0025] like Figure 1 As shown, in one embodiment, the bottom ball valve flange 12 of the anti-polymerization bottom ball valve is connected to the flange 21 of the reactor 2 by a bolt assembly 16. This arrangement improves the connection strength between the bottom ball valve flange 12 and the flange 21, and also facilitates disassembly and installation.

[0026] like Figure 1As shown, in one embodiment, the ball valve 1 of the anti-polymerization bottom ball valve is equipped with a drive mechanism 17 for driving the valve core 11 to rotate and open and close the reactor 2. The drive mechanism 17 drives the valve core 11 to rotate 90 degrees clockwise to open the reactor 2, and the drive mechanism 17 drives the valve core 11 to rotate 90 degrees counterclockwise to close the reactor 2. This arrangement facilitates the rotation of the valve core 11 and improves the rotation efficiency of the valve core 11.

[0027] like Figure 1 As shown, in one embodiment, the reactor 2 with the anti-polymerization bottom ball valve is equipped with a stirrer 22 for stirring the materials. The stirrer 22 facilitates the stirring of the liquid materials in the reactor 2, improving the efficiency of the chemical reaction.

[0028] like Figure 1 As shown, in one embodiment, the process medium of the anti-polymerization bottom ball valve is water. This configuration prevents the material from polymerizing while remaining uninvolved in the material's chemical reaction.

[0029] The embodiments described above are merely illustrative of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. A ball valve for preventing polymerization at the bottom of an autoclave, characterized in that, Includes a ball valve (1) for installation at the bottom of the reactor (2), wherein the ball valve (1) is provided with a valve core (11) for closing and opening the reactor (2), and the ball valve (1) is provided with a bottom ball valve flange (12) for connection with the flange flange (21) of the reactor (2), and a plurality of process holes (13) for injecting process medium are provided along the circumference of the bottom ball valve flange (12), and the process holes (13) are connected to the reactor (2).

2. The anti-polymerization bottom ball valve according to claim 1, characterized in that, The process hole (13) is provided with a ferrule connector (14) for injecting process medium. One end of the ferrule connector (14) is sealed to the process hole (13), and the other end of the ferrule connector (14) is used to connect to an external process medium intake device.

3. The anti-polymerization bottom ball valve according to claim 1, characterized in that, The process port (13) is equipped with a check valve (15) at one end near the reactor (2) to prevent the material inside the reactor (2) from flowing out.

4. The anti-polymerization bottom ball valve according to claim 1, characterized in that, The bottom ball valve flange (12) is connected to the flange flange (21) of the reactor (2) by a bolt assembly (16).

5. The anti-polymerization bottom ball valve according to claim 1, characterized in that, The ball valve (1) is provided with a drive mechanism (17) for driving the valve core (11) to rotate to open and close the reactor (2).

6. The anti-polymerization bottom ball valve according to claim 1, characterized in that, The reactor (2) is equipped with a stirrer (22) for stirring the materials.

7. The anti-polymerization bottom ball valve according to claim 1, characterized in that, The process medium is water.

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