Safe hydrogenation reaction kettle

Abstract

The utility model discloses a safety hydrogenation reaction kettle, which relates to the technical field of reaction kettles and comprises a kettle body, a discharge valve fixedly mounted on the lower surface of the kettle body, a temperature adjusting mechanism fixedly mounted on the side wall of the kettle body, and a kettle cover fixedly mounted on the upper surface of the kettle body through bolts. Gas conveying units are fixedly mounted on the lower surface of the interior of the kettle body and the lower surface of the kettle cover, and a feeding valve, a detection unit and a mixing unit are fixedly mounted on the kettle cover. The device has the beneficial effects that through reverse rotation of the main shaft and the rotary drum, the disc turbine blade mechanism, the inclined blade turbine blade mechanism and the vertical blade mechanism cooperatively stir and mix materials at multiple angles, through rotation of the first gas distribution disc, rotational flow distribution of hydrogen at the upper end of the kettle body is achieved, gas dissipation is reduced, and the retention time is prolonged; hydrogen is dispersed to the lower end of the kettle body through the second gas distribution disc, and the hydrogen distributed in multiple dimensions is matched with the material mixing unit, so that the hydrogen utilization rate and the reaction efficiency are greatly improved.

Description

Technical Field

[0001] The utility model relates to the technical field of reactors, in particular to a safe hydrogenation reactor. Background Art

[0002] The hydrogenation reactor is a key equipment used for catalytic hydrogenation reactions. It adopts advanced catalytic technology and can efficiently catalyze various chemical reactions, including liquid-phase, gas-phase and solid-phase reactions, by regulating factors such as temperature, pressure and catalyst. It can reduce the reaction activation energy and increase the reaction rate, thereby achieving efficient energy conversion and material conversion.

[0003] After searching, the patent application with Chinese patent publication number CN221062725U discloses a safe hydrogenation reactor, which mainly uses a stirring component to ensure that when other substances are added to the working tank, they will not adhere to the inner wall of the working tank, thereby ensuring the completeness and efficiency of the reaction.

[0004] A comparison with the existing technologies in related fields shows that the existing reactors have a single stirring method, which limits the flow direction of the materials and makes it difficult to achieve sufficient mixing of the materials and hydrogen. In addition, due to the light weight of hydrogen, the hydrogen in the materials is very easy to overflow, resulting in a short residence time of hydrogen in the materials. The hydrogen and the materials cannot effectively contact each other, resulting in low reaction efficiency and quality. Utility Model Content

[0005] The purpose of this utility model is to provide a safe hydrogenation reactor in order to solve the above problems.

[0006] The utility model achieves the above-mentioned purpose through the following technical solutions:

[0007] A safe hydrogenation reactor comprises a reactor body, a discharge valve fixedly mounted on the lower surface of the reactor body, a temperature regulating mechanism fixedly mounted on the side wall of the reactor body, a reactor cover fixedly mounted on the upper surface of the reactor body by bolts, a gas delivery unit fixedly mounted on the inner lower surface of the reactor body and the lower surface of the reactor cover, and a feeding valve, a detection unit and a mixing unit fixedly mounted on the reactor cover;

[0008] The mixing unit includes a main shaft and a rotating drum. The rotating drum is rotatably mounted on the kettle cover. An oblique-blade turbine blade mechanism and a vertical blade mechanism are fixedly mounted on the rotating drum. The main shaft is rotatably connected in the rotating drum. A disc turbine blade mechanism is fixedly mounted on the lower end of the main shaft. Both the main shaft and the rotating drum are connected to a drive assembly, which is fixedly mounted on the upper surface of the kettle cover. The vertical blade mechanism is located between the oblique-blade turbine blade mechanism and the disc turbine blade mechanism, and the disc turbine blade mechanism is located at the bottom. The number of blades on the disc turbine blade mechanism, the vertical blade mechanism and the oblique-blade turbine blade mechanism gradually decreases from bottom to top.

[0009] Furthermore, the drive assembly includes a first power mechanism and a second power mechanism, both of which are fixedly mounted on the upper surface of the kettle cover, the output shaft of the first power mechanism is fixedly connected to the main shaft, the output shaft of the second power mechanism is fixedly connected to the gear transmission mechanism, and the gear transmission mechanism is fixedly connected to the rotating drum.

[0010] Furthermore, the gas delivery unit includes a third power mechanism, a pipe, a first air guide and a second air guide. The third power mechanism and the first air guide are both fixedly mounted on the kettle cover. The pipe is rotatably arranged on the kettle cover. A through hole connected to the first air guide is provided on the pipe. The pipe and the first air guide are sealed and rotatably connected. Both ends of the pipe are fixedly connected to the output shaft of the third power mechanism and the first gas distribution plate. The first gas distribution plate is connected to the first air guide through the pipe. The second air guide is fixedly mounted inside the kettle body and is located below the disc turbine blade mechanism. The second air guide is rotatably connected to the lower end of the main shaft. An air guide cavity is provided inside the lower end of the main shaft. The lower end of the main shaft is fixedly mounted with the second gas distribution plate. The second gas distribution plate is located between the disc turbine blade mechanism and the second air guide.

[0011] Furthermore, the gas outlet end surface of the first gas distribution plate is in an inverted cone shape.

[0012] Furthermore, the detection unit includes a temperature sensor and a gas concentration sensor, and the temperature sensor and the gas concentration sensor are both fixedly mounted on the lower surface of the kettle cover.

[0013] Furthermore, a pressure relief valve communicating with the kettle body is fixedly mounted on the upper surface of the kettle cover.

[0014] The beneficial effects compared with the prior art are as follows:

[0015] 1. The main shaft and the drum rotate in opposite directions, driving the disc turbine blade mechanism, the oblique-blade turbine blade mechanism and the vertical blade mechanism to work together, turning the mixed material from different angles to form a multi-dimensional material flow, which greatly improves the mixing uniformity and contact adequacy of the material and hydrogen, and significantly enhances the efficiency and quality of the mixing reaction.

[0016] 2. The third power mechanism drives the first gas distribution plate to rotate, realizing the swirl distribution of hydrogen at the upper end of the kettle body, reducing gas escape and increasing residence time. At the same time, the second gas distribution plate disperses the hydrogen to the lower end of the kettle body. The multi-dimensional distribution of hydrogen cooperates with the mixing unit to greatly improve the hydrogen utilization rate and reaction efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0018] Figure 1 This is a schematic diagram of the first cross-sectional structure of a safe hydrogenation reactor described in the utility model;

[0019] Figure 2 This is a safe hydrogenation reactor described in the utility model Figure 1 A in the middle is an enlarged structural diagram;

[0020] Figure 3 This is a safe hydrogenation reactor described in the utility model Figure 1 The enlarged structural diagram at B in the middle;

[0021] Figure 4 This is a schematic diagram of the second cross-sectional structure of a safe hydrogenation reactor described in the present invention;

[0022] Figure 5 This is a schematic diagram of the first axonometric structure of a safe hydrogenation reactor described in the utility model;

[0023] Figure 6 This is a safe hydrogenation reactor described in the utility model Figure 5 The enlarged structural diagram at C in the middle;

[0024] Figure 7 This is a second axonometric structural diagram of a safe hydrogenation reactor described in the utility model.

[0025] The following are the descriptions of the reference numerals:

[0026] 1. Kettle body; 2. Kettle cover; 301. First power mechanism; 302. Main shaft; 303. Disc turbine blade mechanism; 304. Second power mechanism; 305. Gear transmission mechanism; 306. Rotating drum; 307. Pitch-blade turbine blade mechanism; 308. Vertical blade mechanism; 401. Third power mechanism; 402. Pipe fittings; 403. First gas distribution plate; 404. First air guide member; 405. Second air guide member; 406. Second gas distribution plate; 407. Air guide cavity; 5. Temperature control mechanism; 6. Temperature sensor; 7. Gas concentration sensor; 8. Feeding valve; 9. Discharge valve; 10. Pressure relief valve. DETAILED DESCRIPTION

[0027] like Figure 1-Figure 7As shown, a safe hydrogenation reactor comprises a reactor body 1, a discharge valve 9 is fixedly installed on the lower surface of the reactor body 1, a temperature regulating mechanism 5 is fixedly installed on the side wall of the reactor body 1, a reactor cover 2 is fixedly installed on the upper surface of the reactor body 1 by bolts, a gas delivery unit is fixedly installed on the inner lower surface of the reactor body 1 and the lower surface of the reactor cover 2, a feeding valve 8, a detection unit and a mixing unit are fixedly installed on the reactor cover 2, the reactor body 1 is sealed by the reactor cover 2, the temperature and gas concentration in the reactor body 1 are detected by the detection unit, the temperature in the reactor body 1 can be adjusted according to the detected temperature and reaction requirements by the temperature regulating mechanism 5, the material to be reacted is added to the reactor body 1 through the feeding valve 8, hydrogen is transported into the reactor body 1 through the gas delivery unit, the material and hydrogen are stirred and mixed by the mixing unit, so that the hydrogen and the material are fully contacted and mixed to ensure the efficiency and quality of the reaction, and after the reaction is completed, the material after the reaction is discharged through the discharge valve 9;

[0028] like Figure 1 、 Figure 3 、 Figure 4 、 Figure 6 As shown, the mixing unit includes a main shaft 302 and a rotating drum 306. The rotating drum 306 is rotatably mounted on the kettle cover 2. An oblique-blade turbine blade mechanism 307 and a vertical blade mechanism 308 are fixedly mounted on the rotating drum 306. The main shaft 302 is rotatably connected to the rotating drum 306. A disc turbine blade mechanism 303 is fixedly mounted on the lower end of the main shaft 302. Both the main shaft 302 and the rotating drum 306 are connected to a driving assembly, which is fixedly mounted on the upper surface of the kettle cover 2. The vertical blade mechanism 308 is located between the oblique-blade turbine blade mechanism 307 and the disc turbine blade mechanism 303. The disc turbine blade mechanism 303 is located at the bottom. During operation, the main shaft 302 and the rotating drum 306 are driven to rotate by the driving assembly. The rotation directions of the main shaft 302 and the rotating drum 306 are opposite. The disc turbine blade mechanism 303 is driven to rotate by the main shaft 302 to generate axial and radial mixed flows, which push the material to move in the bottom area of ​​the kettle. The inclined-blade turbine blade mechanism 307 and the vertical blade mechanism 308 are driven to rotate by the rotating drum 306. The inclined-blade turbine blade mechanism 307 drives the reaction material to rotate and generates radial shear force in the rotating material. The vertical blade mechanism 308 drives the material to rotate and forms turbulence in the rotating material to increase fluid resistance. The disc turbine blade mechanism 303, the inclined-blade turbine blade mechanism 307 and the vertical blade mechanism 308 drive the material to be tumbled and mixed at different angles, thereby improving the multidimensionality of the material flow, ensuring that the material and hydrogen are fully contacted and mixed, and improving the efficiency and quality of the mixing reaction.

[0029] like Figure 1 、 Figure 4 、 Figure 6 、 Figure 7As shown, the driving assembly includes a first power mechanism 301 and a second power mechanism 304, and the first power mechanism 301 and the second power mechanism 304 are both fixedly mounted on the upper surface of the kettle cover 2. The output shaft of the first power mechanism 301 is fixedly connected to the main shaft 302, and the output shaft of the second power mechanism 304 is fixedly connected to the gear transmission mechanism 305, and the gear transmission mechanism 305 is fixedly connected to the rotating drum 306. The main shaft 302 is driven to rotate by the first power mechanism 301, and the second power mechanism 304 drives the rotating drum 306 to rotate through the gear transmission mechanism 305. The rotation directions of the first power mechanism 301 and the second power mechanism 304 are opposite. The first power mechanism 301 and the second power mechanism 304 are used to achieve the adjustment requirements of different speeds, meet the diverse requirements of stirring intensity and flow field form in different reaction stages and different material properties, accurately control the mixing process, and improve the controllability and effect of the reaction.

[0030] like Figure 1 、 Figure 3 、 Figure 4 As shown, the number of blades on the disc turbine blade mechanism 303, the vertical blade mechanism 308 and the oblique blade turbine blade mechanism 307 gradually decreases from bottom to top. The arrangement of different numbers of blades on the disc turbine blade mechanism 303, the vertical blade mechanism 308 and the oblique blade turbine blade mechanism 307 can generate different forces on the material during rotation, reasonably distribute the stirring power, optimize the flow field distribution, and increase the effect of material tumbling and mixing.

[0031] like Figure 1-Figure 7As shown, the gas delivery unit includes a third power mechanism 401, a pipe 402, a first air guide 404 and a second air guide 405. The third power mechanism 401 and the first air guide 404 are both fixedly mounted on the kettle cover 2. The pipe 402 is rotatably arranged on the kettle cover 2. Both ends of the pipe 402 are fixedly connected to the output shaft of the third power mechanism 401 and the first gas distribution plate 403. The first gas distribution plate 403 is connected to the first air guide 404 through the pipe 402. The second air guide 405 is fixedly mounted inside the kettle body 1 and is located below the disc turbine blade mechanism 303. The second air guide 405 is rotatably connected to the lower end of the main shaft 302. The lower end of the main shaft 302 is internally connected to the first air guide 404. An air guide cavity 407 is provided, and a second gas distribution plate 406 is fixedly installed at the lower end of the main shaft 302. The second gas distribution plate 406 is located between the disc turbine blade mechanism 303 and the second air guide 405. The first air guide 404 and the second air guide 405 are connected to an external hydrogen delivery device. A through hole connected to the first air guide 404 is provided on the pipe 402. The gas in the first air guide 404 enters the pipe 402 through the through hole. The pipe 402 and the first air guide 404 are sealed and rotatably connected. During operation, the external hydrogen delivery device delivers hydrogen to the first air guide 404 and the second air guide 405. The hydrogen passes through the first air guide 404 and the pipe. 402 enters the first gas distribution plate 403 and is ejected through the first gas distribution plate 403. The hydrogen ejected from the first gas distribution plate 403 enters the upper end of the kettle body 1. At the same time, the third power mechanism 401 drives the first gas distribution plate 403 to rotate through the pipe 402. The rotation of the first gas distribution plate 403 drives the gas at the upper end of the kettle body 1 to rotate, so that the gas is swirl-distributed. The force of the rotation of the first gas distribution plate 403 drives the gas to enter the reaction material in the kettle body 1, reducing the accumulation of gas at the upper end of the kettle body 1, reducing the escape of gas, and increasing the residence time of the gas in the reaction material, so that the gas and the reaction material can fully contact and react. When the first gas distribution plate 403 sprays hydrogen, part of the gas enters the gas guide cavity 407 at the lower end of the main shaft 302 through the second gas guide 405, and then enters the second gas distribution plate 406 through the gas guide cavity 407, and then sprays out from the second gas distribution plate 406. At the same time, the second gas distribution plate 406 is driven to rotate by the main shaft 302, so that the second gas distribution plate 406 disperses the gas to the lower end of the inner part of the kettle body 1. The first gas distribution plate 403 and the second gas distribution plate 406 realize multi-dimensional distribution of hydrogen at the top and bottom of the reactor, and cooperate with the mixing unit to make the hydrogen and materials fully contact and react, thereby improving the hydrogen utilization rate and reaction efficiency.

[0032] like Figure 2 、 Figure 4As shown, the gas outlet end surface of the first gas distribution plate 403 is in an inverted cone shape. Through the inverted cone design, the first gas distribution plate 403 can better drive the airflow when rotating, so that the airflow forms a swirl distribution.

[0033] like Figure 2 As shown, the detection unit includes a temperature sensor 6 and a gas concentration sensor 7, which are both fixedly mounted on the lower surface of the kettle cover 2. During operation, the temperature sensor 6 can monitor the temperature inside the kettle body 1 in real time. According to the temperature detected by the temperature sensor 6, the temperature control mechanism 5 can adjust the temperature inside the kettle body 1 so that the kettle body 1 is at the optimal reaction temperature. The gas concentration inside the kettle body 1 is monitored in real time by the gas concentration sensor 7, which is convenient for controlling the gas concentration inside the kettle body 1. The temperature sensor 6 and the gas concentration sensor 7 make it easy for the staff to understand the working environment inside the kettle body 1 in a timely manner, and can make timely adjustments as needed to ensure safety and stability during the reaction and improve the efficiency of the reaction.

[0034] like Figure 4-Figure 7 As shown, a pressure relief valve 10 connected to the kettle body 1 is fixedly installed on the upper surface of the kettle cover 2. The pressure relief valve 10 is connected to an external exhaust gas treatment device. During operation, when the pressure in the kettle body 1 exceeds a set threshold, part of the gas in the kettle body 1 is discharged through the pressure relief valve 10 to reduce the pressure in the kettle, effectively preventing dangerous accidents such as explosion caused by excessive pressure in the kettle body 1, ensuring the safety of the entire reactor and operators, and improving safety.

[0035] Working principle: Figure 1 、 Figure 3 、 Figure 4 、 Figure 6 、 Figure 7 As shown, the material to be reacted is added to the kettle body 1 through the feeding valve 8, the main shaft 302 is driven to rotate by the first power mechanism 301, the second power mechanism 304 drives the drum 306 to rotate through the gear transmission mechanism 305, and the disc turbine blade mechanism 303 is driven to rotate by the main shaft 302, thereby generating an axial and radial mixed flow, which promotes the movement of the material in the bottom area of ​​the kettle, and the inclined blade turbine blade mechanism 307 and the vertical blade mechanism 308 are driven to rotate by the drum 306. The materials are driven by the disc turbine blade mechanism 303, the inclined blade turbine blade mechanism 307 and the vertical blade mechanism 308 to be tumbled and mixed at different angles, thereby improving the multidimensionality of the material flow;

[0036] At the same time, if Figure 1-Figure 7As shown, the external hydrogen delivery device delivers hydrogen to the first gas guide 404 and the second gas guide 405. The hydrogen enters the first gas distribution plate 403 through the first gas guide 404 and the pipe 402, and is ejected through the first gas distribution plate 403. The hydrogen ejected from the first gas distribution plate 403 enters the upper end of the kettle body 1. At the same time, the third power mechanism 401 drives the first gas distribution plate 403 to rotate through the pipe 402. The rotation of the first gas distribution plate 403 drives the gas at the upper end of the kettle body 1 to rotate, so that the gas is swirl-distributed. Part of the gas enters the gas guide cavity 407 at the lower end of the main shaft 302 through the second gas guide member 405, then enters the second gas distribution plate 406 through the gas guide cavity 407, and is ejected from the second gas distribution plate 406. At the same time, the second gas distribution plate 406 is driven to rotate by the main shaft 302, so that the second gas distribution plate 406 disperses the gas to the lower end of the interior of the reactor body 1. The first gas distribution plate 403 and the second gas distribution plate 406 achieve multi-dimensional distribution of hydrogen at the top and bottom of the reactor, which facilitates full contact and mixing between the material and the hydrogen.

[0037] like Figure 1 、 Figure 2 、 Figure 4-Figure 7 As shown, during the reaction process, the temperature inside the kettle body 1 can be monitored in real time by the temperature sensor 6. According to the temperature detected by the temperature sensor 6, the temperature inside the kettle body 1 is adjusted by the temperature control mechanism 5, and the gas concentration inside the kettle body 1 is monitored in real time by the gas concentration sensor 7. During the working process, when the pressure inside the kettle body 1 exceeds the set threshold, part of the gas in the kettle body 1 is discharged through the pressure relief valve 10 to improve safety. After the reaction is completed, the material after the reaction is completed is discharged through the discharge valve 9.

[0038] 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 to the above embodiments. The above embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention, and such changes and improvements shall fall within the scope of the present invention as claimed.

Claims

1. A safe hydrogenation reactor, characterized in that: The invention comprises a kettle body (1), a discharge valve (9) is fixedly mounted on the lower surface of the kettle body (1), a temperature regulating mechanism (5) is fixedly mounted on the side wall of the kettle body (1), a kettle cover (2) is fixedly mounted on the upper surface of the kettle body (1) by means of bolts, a gas delivery unit is fixedly mounted on the inner lower surface of the kettle body (1) and the lower surface of the kettle cover (2), and a feeding valve (8), a detection unit and a mixing unit are fixedly mounted on the kettle cover (2); The mixing unit comprises a main shaft (302) and a rotating drum (306). The rotating drum (306) is rotatably mounted on the kettle cover (2). A tilted-blade turbine blade mechanism (307) and a vertical blade mechanism (308) are fixedly mounted on the rotating drum (306). The main shaft (302) is rotatably connected to the rotating drum (306). A disc turbine blade mechanism (303) is fixedly mounted on the lower end of the main shaft (302). The main shaft (302) and the rotating drum (306) are connected to each other. They are all connected to a drive assembly, which is fixedly mounted on the upper surface of the kettle cover (2); the vertical blade mechanism (308) is located between the oblique-blade turbine blade mechanism (307) and the disc turbine blade mechanism (303); the disc turbine blade mechanism (303) is located at the bottom; the number of blades on the disc turbine blade mechanism (303), the vertical blade mechanism (308) and the oblique-blade turbine blade mechanism (307) gradually decreases from bottom to top.

2. A safe hydrogenation reactor according to claim 1, characterized in that: The driving assembly comprises a first power mechanism (301) and a second power mechanism (304), wherein the first power mechanism (301) and the second power mechanism (304) are both fixedly mounted on the upper surface of the kettle cover (2), the output shaft of the first power mechanism (301) is fixedly connected to the main shaft (302), and the output shaft of the second power mechanism (304) is fixedly connected to a gear transmission mechanism (305), and the gear transmission mechanism (305) is fixedly connected to the rotating drum (306).

3. A safe hydrogenation reactor according to claim 1, characterized in that: The gas delivery unit comprises a third power mechanism (401), a pipe (402), a first air guide (404) and a second air guide (405), wherein the third power mechanism (401) and the first air guide (404) are both fixedly mounted on the kettle cover (2), the pipe (402) is rotatably arranged on the kettle cover (2), a through hole communicating with the first air guide (404) is provided on the pipe (402), the pipe (402) and the first air guide (404) are sealed and rotatably connected, and both ends of the pipe (402) are fixedly connected to the output shaft of the third power mechanism (401) and the first gas distribution plate (405). 3), the first gas distribution plate (403) is connected to the first gas guide member (404) through the pipe (402), the second gas guide member (405) is fixedly installed inside the kettle body (1), and is located below the disc turbine blade mechanism (303), the second gas guide member (405) is rotatably connected to the lower end of the main shaft (302), and a gas guide cavity (407) is provided inside the lower end of the main shaft (302), and the second gas distribution plate (406) is fixedly installed on the lower end of the main shaft (302), and the second gas distribution plate (406) is located between the disc turbine blade mechanism (303) and the second gas guide member (405).

4. A safe hydrogenation reactor according to claim 3, characterized in that: The gas outlet end surface of the first gas distribution plate (403) is in an inverted cone shape.

5. A safe hydrogenation reactor according to claim 1, characterized in that: The detection unit comprises a temperature sensor (6) and a gas concentration sensor (7), and both the temperature sensor (6) and the gas concentration sensor (7) are fixedly mounted on the lower surface of the kettle cover (2).

6. A safe hydrogenation reactor according to claim 1, characterized in that: A pressure relief valve (10) communicating with the kettle body (1) is fixedly mounted on the upper surface of the kettle cover (2).

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