Air inlet reaction kettle
By designing a combination structure of the hollow shaft and the air inlet in the reactor, the problems of reaction liquid backflow and mist blockage with small ventilation volume in the late reaction period are solved, and the stability and safety of the reaction are achieved.
Patent Information
- Application Number
- CN202421394970.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-18
- Publication Date
- 2025-04-25
- Estimated Expiration
- 2034-06-18
AI Technical Summary
The existing reactors may easily lead to the reaction liquid backflow during the late reaction period, poor removal of reaction heat, and the gas phase entrained mist precipitation of crystals blocking the circulation inhalation port, resulting in abnormal reaction.
An air intake reactor is designed. By extending the hollow shaft outside the kettle body and setting an air intake port outside the kettle, it avoids the problem of mist precipitation and blockage. At the same time, a gas-type stirrer is installed in the kettle body to remove the gas distributor to prevent the reaction liquid from pouring in.
It effectively avoids the problem of reaction liquid backflow and poor reaction heat removal when the ventilation volume is small in the later stage of the reaction, and prevents the mist from precipitating and blocking the circulation inhalation port, ensuring the stability and safety of the reaction.
Smart Images
Figure CN222789219U_ABST
Abstract
Description
Technical Field
[0001] The present application belongs to the technical field of reactors, and in particular, relates to an air intake reactor. Background Art
[0002] Generally, there are two methods for gas-liquid or gas-liquid-solid reactions: one is to install a self-priming agitator in the reactor, the second is a loop reactor, and the third is bottom air intake. All three methods can increase the gas content in the liquid phase, enhance gas-liquid mass transfer, and promote the reaction.
[0003] When the gas in the gas phase space in the reactor cannot be used for circulation, for example, when mist is entrained in the gas phase and the mist will crystallize and block the circulation pipe mouth, the self-priming agitator and loop reactor method will no longer be applicable; when the reaction is intermittent, the ventilation is large in the early stage of the reaction and small in the later stage, resulting in the gas distributor being unable to take both into account and causing risks. For example, in the later stage of pure oxygen oxidation reaction, the reaction liquid will flow back into the distributor to react with oxygen, resulting in poor removal of reaction heat and causing risks. The self-priming agitator method is not applicable; the loop reactor method can only pump air for normal pressure oxidation reaction, and the small amount of gas in the later stage of the reaction cannot be evenly mixed with the liquid in the tank, affecting the reaction. Utility Model Content
[0004] The present application provides an air intake reactor, which solves the problem of poor reaction heat removal caused by backflow of reaction liquid when the ventilation volume is small in the late stage of the reaction, and the blockage of the circulating air intake port by crystals precipitated by mist entrained in the gas phase.
[0005] An embodiment of the present application provides an air intake reactor, comprising a reactor body, an air intake mechanism is provided above the reactor body, the air intake mechanism is provided with an air inlet, a stirring mechanism is provided in the middle of the reactor body and the air intake mechanism, the stirring mechanism is provided with a hollow shaft, and the top of the hollow shaft is connected to the air inlet.
[0006] In one embodiment,
[0007] The air intake mechanism also includes an air chamber, the air inlet is connected to the top of the air chamber, one side of the air chamber is connected to a liquid inlet, a water jacket is provided on the outer periphery of the air chamber, and a fixing piece is provided at the bottom of the air chamber.
[0008] In one embodiment,
[0009] The water jacket is connected to a water outlet on one side and to a water inlet on the other side, a viewing window is provided below the water outlet, and the viewing window passes through the water jacket and is connected to the air chamber; a mechanical seal is provided at the inner bottom of the air chamber, and the mechanical seal comprises a mechanical seal static ring and a mechanical seal dynamic ring, the mechanical seal static ring is fixedly connected to the bottom of the air chamber, and the mechanical seal dynamic ring is fixedly connected to the hollow shaft; a liquid seal is provided in the air chamber.
[0010] In one embodiment,
[0011] A terminal stirrer is arranged at the bottom of the hollow shaft, and an air distribution stirrer is arranged on the terminal stirrer.
[0012] In one embodiment,
[0013] The stirring mechanism comprises a reducer, and the reducer is connected to the air chamber through the fixing member.
[0014] In one embodiment,
[0015] The stirring mechanism also includes a motor arranged at one side of the air intake mechanism, and a first supporting frame is arranged below the motor.
[0016] In one embodiment,
[0017] The reducer and the first support frame are fixedly connected via a second support frame.
[0018] In one embodiment,
[0019] The stirring mechanism further comprises a frame arranged below the second supporting frame, a mechanical seal is arranged at the lower part of the frame, and the mechanical seal is connected to the kettle body through a third supporting frame.
[0020] In one embodiment,
[0021] The hollow shaft is connected to the air chamber, the end stirrer and the kettle body.
[0022] In one embodiment,
[0023] Baffles are arranged on the inner circumference of the kettle body.
[0024] The present application provides an air intake reactor, in which a hollow shaft is extended out of the reactor body, and an air inlet is also arranged outside the reactor, so as to avoid abnormal reaction caused by crystals precipitated from the gas phase in the reactor and blocking the circulating air intake port. The air intake mechanism seals the gas in the air chamber, and the operating pressure in the reactor body is not restricted. An air distribution agitator is added, and the gas distributor can be removed to avoid the reaction liquid with low ventilation volume in the later stage of the reaction from flowing back into the gas distributor, causing an exothermic reaction in the distributor, thereby causing the risk of poor removal of reaction heat, such as oxidation reactions, especially pure oxygen oxidation reactions. The air inlet of the present application can also be used for liquid inlet. For example, for reactions that require dripping control, the dripping liquid entering the reaction liquid can be quickly dispersed by the self-priming agitator, thereby enhancing mass transfer and reducing the problem of excessive local concentration. Agitators can be selected in a variety of ways without restriction. BRIEF DESCRIPTION OF THE DRAWINGS
[0025] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.
[0026] Figure 1 It is a schematic diagram of the structure of a filter plate agitator reactor;
[0027] Figure 2 It is a schematic diagram of the structure of the air intake device;
[0028] Figure 3 It is a schematic diagram of the mechanical seal structure;
[0029] Figure 4 This is a schematic diagram of the structure of a propeller agitator reactor.
[0030] Explanation of symbols in the figure:
[0031] A. Air intake mechanism; 1. Air inlet; 2. Liquid inlet; 3. Air chamber; 4. Water jacket; 5. Water inlet; 6. Fixing parts; 7. Speed reducer; 8. Motor; 9. Water outlet; 10. Window; 11. Mechanical seal; 12. Liquid seal; 13. First support frame; 14. Second support frame; 15. Propeller agitator; 16. Frame; 17. Mechanical seal; 18. Hollow shaft; 19. Kettle body; 20. Baffle; 21. Air distribution agitator; 22. Filter plate agitator; 23. Third support frame; 24. Mechanical seal dynamic ring; 25. Mechanical seal static ring. DETAILED DESCRIPTION
[0032] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present application more clear, the present application is further described in detail. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.
[0033] In one embodiment, a gas-intake reactor, such as Figure 1 As shown, it includes a kettle body 19, an air intake mechanism A is provided above the kettle body 19, the air intake mechanism A is provided with an air inlet 1, a stirring mechanism is provided in the middle of the kettle body 19 and the air intake mechanism A, the stirring mechanism is provided with a hollow shaft 18, and the top of the hollow shaft 18 is connected to the air inlet 1; Figure 2 As shown, the air intake mechanism A also includes an air chamber 3, an air inlet 1 is connected to the top of the air chamber 3, one side of the air chamber 3 is connected to the liquid inlet 2, a water jacket 4 is arranged on the periphery of the air chamber 3, one side of the water jacket 4 is connected to the water outlet 9, and the other side is provided with a water inlet 5; a viewing window 10 is arranged below the water outlet 9, and the viewing window 10 passes through the water jacket 4 and is connected to the air chamber 3; a mechanical seal 11 is arranged at the bottom of the air chamber 3, as shown in FIG. Figure 3As shown, the mechanical seal 11 includes a mechanical seal static ring 25 and a mechanical seal dynamic ring 24, the mechanical seal static ring 25 is fixedly connected to the bottom of the air chamber 3, and the mechanical seal dynamic ring 24 is fixedly connected to the hollow shaft 18; a liquid seal 12 is arranged in the air chamber 3; the stirring mechanism also includes a fixing member 6 arranged at the bottom of the air chamber 3, a reducer 7 is arranged below the fixing member 6, and the reducer 7 is connected to the air chamber 3 through the fixing member 6; a motor 8 is arranged on one side of the air intake mechanism A, a first support frame 13 is arranged below the motor 8, and the reducer 7 and the first support frame 13 are fixedly connected through the second support frame 14; a frame 16 is arranged below the second support frame 14, and a mechanical seal 17 is arranged at the lower part of the frame 16, and the mechanical seal 17 runs through the frame 16 and is connected to the kettle body 19 through the third support frame 23; an end stirrer is arranged at the bottom of the hollow shaft 18, and the end stirrer can be a stirrer of various types, Figure 1 The filter plate agitator 22 is Figure 4 It is a propulsion agitator 15; an air distribution agitator 21 is arranged above the end agitator, and an air distribution blade is arranged on the air distribution agitator 21; a hollow shaft 18 connects the air chamber 3, the end agitator and the inside of the kettle body 19; baffles 20 are evenly arranged on the circumference of the inside of the kettle body 19.
[0034] Specifically, the air intake mechanism A can be at the upper part of the reducer, or can be designed at the position of the frame 16; the kettle body 19 provides a reaction place, the air inlet 1 is connected to the air chamber 3, the reaction gas enters the air chamber 3 through the air inlet 1, and then passes through the hollow shaft 18, is thrown out from the rotating end agitator, and is distributed in the kettle liquid; the liquid inlet 2 is used to send a suitable liquid into the air chamber 3 to form a liquid seal 12, the water jacket 4 is connected to the outside of the air chamber 3 to form a circumferential surround, the water jacket 4 is provided with a water inlet 5 and a water outlet 9, and the heat generated by the friction of the mechanical seal 11 transmitted by the liquid seal 12 is taken away by the flow of water; the mechanical seal dynamic ring 24 is located on the upper part of the mechanical seal static ring 25, the mechanical seal static ring 25 and the mechanical seal dynamic ring 24 form a sealing surface, and the sealing surface is immersed in the liquid seal 12; the liquid seal 12 is a liquid, which flows into the air chamber 3 through the liquid inlet 2, the liquid level exceeds the sealing surface, the air inlet 1 is at a certain distance from the liquid level of the liquid seal 12, and the liquid seal in the air chamber 3 can be observed through the window 10 12; the liquid seal has two functions, one is to seal the gas in the gas chamber to prevent it from leaking into the atmosphere, and the other is to transfer the heat generated by the friction of the mechanical seal 11 to the water jacket 4 through the liquid seal 12; the reducer 7 is used to reduce speed so that the rotation speed of the hollow shaft 18 meets the design value. The motor 8 and the reducer 7 transmit power through belts or gears to form a drive device to provide power for the end agitator and the hollow shaft 18; the fixing member 6 fixes the air chamber 3 and the reducer 7, and the first support frame 13, the second support frame 14 and the third support frame 23 are all used for fixing; the baffle 20 is fixed to the inner wall of the kettle to eliminate the vortex and strengthen the mixing; the hollow shaft 18 extends out of the reducer 7, passes into the air chamber 3, and the middle part of the hollow shaft 18 is connected. The reaction gas passes through the hollow shaft 18 to reach the filter plate agitator 22 or the propeller agitator 15 and enters the inside of the kettle body 19; the air distribution agitator 21 can rotate to facilitate the uniform dispersion of the gas in the kettle body 19.
[0035] The present application provides an air intake reactor, comprising a reactor body, an air intake mechanism is arranged above the reactor body, the air intake mechanism is provided with an air inlet, a stirring mechanism is arranged in the middle of the reactor body and the air intake mechanism, the stirring mechanism is provided with a hollow shaft, and the top of the hollow shaft is connected with the air inlet; the present application extends the hollow shaft out of the reactor body, and the air inlet is also arranged outside the reactor, which can avoid abnormal reaction caused by the gas phase in the reactor entraining mist and foam and precipitating crystals blocking the circulating air intake port, the air intake mechanism seals the gas in the air chamber, the operating pressure in the reactor body is not restricted, and the addition of an air distribution agitator can eliminate the gas distribution The device can prevent the reaction liquid with low ventilation volume from flowing back into the gas distributor in the later stage of the reaction, causing an exothermic reaction in the distributor, thereby causing the risk of poor removal of reaction heat. For example, in oxidation reactions, especially pure oxygen oxidation reactions, the air inlet of the present application can also be used for liquid inlet. For example, in reactions that require dripping control, the dripping liquid can be quickly dispersed by the self-priming agitator when it enters the reaction liquid, thereby enhancing mass transfer and reducing the problem of excessive local concentration. The agitator can be selected in a variety of ways without restriction. The self-priming agitator and the end agitator cooperate with each other, and the gas and liquid are well mixed, which is conducive to the stable progress of the reaction.
[0036] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of this application, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.
[0037] The above description is only a preferred embodiment of the present application and is not intended to limit the present application. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present application should be included in the protection scope of the present application.
Claims
1. An air intake reactor, comprising a reactor body, characterized in that: An air intake mechanism is arranged above the kettle body, and the air intake mechanism is provided with an air inlet. A stirring mechanism is arranged in the middle of the kettle body and the air intake mechanism, and the stirring mechanism is provided with a hollow shaft, and the top of the hollow shaft is connected with the air inlet.
2. The air intake reactor according to claim 1, characterized in that: The air intake mechanism also includes an air chamber, the air inlet is connected to the top of the air chamber, one side of the air chamber is connected to a liquid inlet, a water jacket is provided on the outer periphery of the air chamber, and a fixing piece is provided at the bottom of the air chamber.
3. The air intake reactor according to claim 2, characterized in that: The water jacket is connected to a water outlet on one side and to a water inlet on the other side, a viewing window is provided below the water outlet, and the viewing window passes through the water jacket and is connected to the air chamber; a mechanical seal is provided at the inner bottom of the air chamber, and the mechanical seal comprises a mechanical seal static ring and a mechanical seal dynamic ring, the mechanical seal static ring is fixedly connected to the bottom of the air chamber, and the mechanical seal dynamic ring is fixedly connected to the hollow shaft; a liquid seal is provided in the air chamber.
4. The air intake reactor according to claim 1, characterized in that: A terminal stirrer is arranged at the bottom of the hollow shaft, and an air distribution stirrer is arranged on the terminal stirrer.
5. The air intake reactor according to claim 2, characterized in that: The stirring mechanism comprises a reducer, and the reducer is connected to the air chamber through the fixing member.
6. The air intake reactor according to claim 5, characterized in that: The stirring mechanism also includes a motor arranged at one side of the air intake mechanism, and a first supporting frame is arranged below the motor.
7. The air intake reactor according to claim 6, characterized in that: The reducer and the first support frame are fixedly connected via a second support frame.
8. The air intake reactor according to claim 7, characterized in that: The stirring mechanism further comprises a frame arranged below the second supporting frame, a mechanical seal is arranged at the lower part of the frame, and the mechanical seal is connected to the kettle body through a third supporting frame.
9. An air intake reactor according to any one of claims 2 or 4, characterized in that: The hollow shaft is connected to the air chamber, the end stirrer and the kettle body.
10. The air intake reactor according to claim 1, characterized in that: Baffles are arranged on the inner circumference of the kettle body.