Anti-leakage device for reaction kettle

Abstract

The utility model relates to the field of petrochemical equipment, in particular to a reaction kettle leakproof device which comprises a kettle body, a feeding port is formed in the top of the kettle body, a discharging port is formed in the bottom of the kettle body, a supporting frame is arranged on the outer side of the kettle body in a surrounding mode, a stirring shaft which can be rotatably installed is arranged on the inner side of the reaction kettle, and a driving piece used for driving the stirring shaft to rotate is arranged at the bottom of the kettle body. The kettle body is provided with a discharge port, the discharge port is connected with and provided with a filling pipeline, the kettle body at the discharge port is provided with an anti-splashing mechanism, and the anti-splashing mechanism comprises an outer pipe hermetically sleeved at the discharge port, a detection element arranged on the discharge port, and a flexible sleeve connected to the end part of the outer pipe and extending to cover the filling pipeline; an inert gas device is installed on the outer pipe in a communicating mode, the inert gas device comprises a gas tank and an on-off electromagnetic valve for controlling on-off of the gas tank, and the detection element is in electric signal connection with the on-off electromagnetic valve. The anti-leakage device is applied to the anti-leakage function of the reaction kettle in the reaction process of petrochemical raw materials.

Description

Technical Field

[0001] This utility model relates to the field of petrochemical equipment, specifically to a reaction vessel leak prevention device. Background Technology

[0002] A steam reactor is an industrial device that uses steam as a heat source for physical or chemical reactions of materials. It is widely used in industries such as chemical, pharmaceutical, food, and petroleum. It typically consists of a reactor body, a reactor lid, a heating system, a stirring system, sealing and transmission components, and is also equipped with auxiliary devices such as thermometers, pressure gauges, and safety valves.

[0003] As shown in the applicant's earlier application CN 220126201 U, a specific structure currently in use is proposed, which is a high-temperature steam reactor for chemical use, comprising a reactor and a water sprayer. The reactor has a feed inlet at the top and a discharge outlet at the bottom. A support frame surrounds the outside of the reactor, and a stirring shaft is provided inside the reactor. The stirring shaft is rotatably connected to the reactor. A drive unit is provided at the bottom of the reactor, and the rotating shaft of the drive unit passes through the bottom of the reactor and is fixedly connected to the stirring shaft. A horizontal partition is provided on the side of the reactor away from the drive unit. The end of the stirring shaft away from the drive unit is rotatably connected to the horizontal partition. A cleaning assembly is provided at the middle of the stirring shaft. The cleaning assembly includes a water storage tank. A storage box is provided on the outside of the water storage tank. The water sprayer is located in the storage box. A connection hole is opened on the side of the water storage tank near the water sprayer. The connection hole is connected to the input end of the water sprayer. A connecting ring is provided on the side of the horizontal partition near the water storage tank. The connecting ring is rotatably connected to the water storage tank.

[0004] In application, some of the chemical raw materials inside the reactor may have corrosive, volatile or other harmful properties to operators. In particular, at the discharge port, when the connection between the receiving carrier and the reactor is not tight enough or the installation is not in place, material leakage or even spraying is more likely to occur, which will affect operational safety. Utility Model Content

[0005] Therefore, this utility model provides a reaction vessel leak prevention device, which solves the problem that the current reaction vessel discharge end does not have a leak prevention function and has low safety.

[0006] To achieve the above objectives, this utility model is implemented through the following technical solution:

[0007] A leak-proof device for a reaction vessel includes a vessel body with an inlet at the top and an outlet at the bottom. A support frame is arranged around the outside of the vessel body. A rotatably mounted stirring shaft is provided inside the reaction vessel. A drive unit for rotating the stirring shaft is provided at the bottom of the vessel body. A filling pipeline is connected to the outlet. An anti-splash mechanism is provided on the vessel body at the outlet. The anti-splash mechanism includes an outer tube sealed at the outlet, a detection element arranged on the outlet, and a flexible sleeve connected to the end of the outer tube and extending to cover the filling pipeline. An inert gas device, which is a gas cylinder and an opening and closing solenoid valve for controlling the opening and closing of the gas cylinder, is connected to the outer tube. The detection element is electrically connected to the opening and closing solenoid valve.

[0008] Preferably, the detection element is a light and temperature sensor array arranged in a ring on the inner wall of the outer tube.

[0009] Preferably, the detection element is an electronic pressure gauge and / or a mass flow meter installed at the outlet of the outer tube.

[0010] Preferably, a water storage tank is connected to the outer pipe.

[0011] Preferably, the radial dimension of the flexible sleeve gradually decreases from one end of the outer tube.

[0012] By adopting the aforementioned technical solution, the beneficial effects of this utility model are:

[0013] This technical solution addresses the current high-temperature steam reactor by installing an anti-splash mechanism at its outlet. When a leak occurs in the reactor, the detection element can detect and reflect the status at the outlet in a timely and accurate manner. Combined with the arrangement of the outer tube and flexible sleeve, it achieves multiple protections and active intelligent protection.

[0014] Its core features a double-sealed outer tube and a tapered flexible sleeve design, forming a dynamic physical barrier. Experimental data shows that this reduces the risk of splashing and diffusion by more than 85%. Simultaneously, the outer tube connects to an inert gas device, which rapidly injects inert gas in case of anomalies, ensuring an oxygen concentration of less than 10% within the pipeline, effectively suppressing the combustion of flammable materials and creating positive pressure isolation. The intelligent monitoring system uses a ring-shaped array of light-emitting temperature sensors, or parameters detected by electronic pressure gauges and mass flow meters, to trigger a three-level response mechanism controlled by the PLC: Level 1 warning activates gas protection; Level 2 linkage closes the feed valve and opens the water tank; Level 3 emergency forced shutdown with audible and visual alarms. The environmental treatment module uses the directional flow guidance of the fluororubber flexible sleeve and its superhydrophobic coating to precisely guide leaked materials into the collection device, thus achieving complete safety protection and green collection and treatment. Attached Figure Description

[0015] Figure 1This is a schematic diagram of the overall structure of an embodiment of the present utility model;

[0016] Figure 2 This is a schematic diagram of the upper spraying mechanism in an embodiment of the present invention.

[0017] Reference numerals: 1. Vessel body; 11. Inlet; 12. Outlet; 13. Support frame; 14. Stirring shaft; 15. Drive component; 16. Filling pipeline; 2. Anti-splash mechanism; 21. Outer pipe; 22. Detection element; 23. Flexible sleeve; 24. Inert gas device; 241. Gas tank; 242. Solenoid valve; 25. Electronic pressure gauge; 26. Mass flow meter; 3. Water storage tank. Detailed Implementation

[0018] The following will describe the implementation of this utility model in detail with reference to specific embodiments, so that the process of how this utility model uses technical means to solve technical problems and achieve technical effects can be fully understood and implemented accordingly.

[0019] Example

[0020] refer to Figure 1 and Figure 2 A leak-proof device for a reaction vessel includes a vessel body 1. The vessel body 1 has an inlet 11 at the top and an outlet 12 at the bottom. A support frame 13 is arranged around the outer side. A rotatably mounted stirring shaft 14 is located inside the reaction vessel. A drive unit 15 for rotating the stirring shaft 14 is located at the bottom of the vessel body 1. A filling pipeline 16 is connected to the outlet 12. An anti-splash mechanism 2 is provided on the vessel body 1 at the outlet 12. The anti-splash mechanism 2 includes a sealing sleeve fitted at the outlet 12. The outer tube 21, the detection element 22 arranged on the discharge port 12, and the flexible sleeve 23 connected to the end of the outer tube 21 and extending to cover the filling pipeline 16, wherein the sealed outer tube 21 of the discharge port 12 forms the first physical barrier, and the radial dimension of the flexible sleeve 23 gradually decreases from one end of the outer tube 21, which is a tapered flexible sleeve 23, which can adapt to filling pipelines 16 with different diameters and can form a dynamic seal through the shrinkage structure. Experimental data shows that it can reduce the risk of splash diffusion by more than 85%.

[0021] An inert gas device 24 is connected and installed on the outer pipe 21. The inert gas device 24 consists of a gas tank 241 and an opening and closing solenoid valve 242 that controls the opening and closing of the gas tank 241. The detection element 22 is electrically connected to the opening and closing solenoid valve 242. When an abnormality is detected, the inert gas device 24 (such as a nitrogen tank 241) connected to the outer pipe 21 can inject inert gas instantaneously through the solenoid valve, so that the oxygen concentration in the pipeline is <10%, effectively inhibiting the combustion of combustibles (lowering the ignition point by 50-100°C), and at the same time forming a positive pressure barrier to prevent material leakage.

[0022] In this embodiment, the detection element 22 is a light temperature sensor array arranged in a ring on the inner wall of the outer tube 21, with 30° intervals and a temperature measurement accuracy of ±1.5℃; at the same time, an electronic pressure gauge 25 (0-2.5MPa range) and a mass flow meter 26 (±0.15% accuracy) are also arranged at the discharge port 12 at the front end of the outer tube 21, thus forming a multi-parameter redundant detection structure.

[0023] Meanwhile, a water storage tank 3 is connected to the outer pipe 21 to realize the water supply design. For certain acid and alkali leaks, the water supply from the storage tank 3 can quickly neutralize the pH value. This technical solution is designed for current high-temperature steam reactors. The anti-splash mechanism 2 is set at the discharge port 12 for protection. When the reactor leaks, the detection element 22 can detect and reflect the status at the discharge port 12 in a timely and accurate manner. With the arrangement of the outer pipe 21 and the flexible sleeve 23, multiple protections and active intelligent protection are achieved.

[0024] Its core design employs a double-sealed outer tube 21 and a tapered flexible sleeve 23 to form a dynamic physical barrier. Experimental data shows that this can reduce the risk of splashing and diffusion by more than 85%. Simultaneously, the outer tube 21 is connected to an inert gas device 24, which rapidly injects inert gas when an anomaly is detected, ensuring the oxygen concentration in the pipeline is <10%, effectively suppressing the combustion of combustibles and creating positive pressure isolation. The intelligent monitoring system uses a ring-shaped light temperature sensor array spaced out, or parameters such as electronic pressure gauges 25 and mass flow meters 26 to detect and trigger a three-level response mechanism controlled by the PLC: Level 1 warning activates gas protection; Level 2 linkage closes the feed valve and opens the water storage tank 3; Level 3 emergency forced shutdown with audible and visual alarms. Structurally, the flexible sleeve 23, made of fluororubber, allows for directional flow guidance and, with its superhydrophobic coating, accurately guides leaked materials into the collection device, thus achieving complete safety protection and green collection and treatment.

[0025] Although the present invention has been specifically shown and described in conjunction with preferred embodiments, those skilled in the art should understand that various changes in form and detail may be made to the present invention without departing from the spirit and scope of the present invention as defined in the appended claims, and all such changes shall be within the scope of protection of the present invention.

Claims

1. A leak-proof device for a reaction vessel, comprising a vessel body (1), wherein the vessel body (1) has an inlet (11) at the top and an outlet (12) at the bottom, and a support frame (13) is arranged around its outer side; a rotatably mounted stirring shaft (14) is provided inside the reaction vessel; and a driving component (15) for rotating the stirring shaft (14) is provided at the bottom of the vessel body (1), characterized in that: The discharge port (12) is connected to the filling pipeline (16). An anti-splash mechanism (2) is provided on the vessel body (1) at the discharge port (12). The anti-splash mechanism (2) includes an outer tube (21) sealed and fitted at the discharge port (12), a detection element (22) arranged on the discharge port (12), and a flexible sleeve (23) connected to the end of the outer tube (21) and extending to cover the filling pipeline (16). An inert gas device (24) is connected and installed on the outer tube (21). The inert gas device (24) is a gas tank (241) and an opening and closing solenoid valve (242) that controls the opening and closing of the gas tank (241). The detection element (22) is electrically connected to the opening and closing solenoid valve (242).

2. The anti-leakage device for a reaction vessel according to claim 1, characterized in that: The detection element (22) is a light and temperature sensor array arranged in a ring on the inner wall of the outer tube (21).

3. The reaction vessel leak-proof device according to claim 1, characterized in that: The detection element (22) is an electronic pressure gauge (25) and / or a mass flow meter (26) installed at the outlet (12) at the front end of the outer tube (21).

4. The anti-leakage device for a reaction vessel according to claim 1, characterized in that: A water storage tank (3) is connected to the outer pipe (21).

5. A reaction vessel leak-proof device according to any one of claims 1-4, characterized in that: The radial dimension of the flexible sleeve (23) gradually decreases from one end of the outer tube (21).

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