A hydroxybutyl vinyl ether reactor

Abstract

The utility model relates to a kind of hydroxybutyl vinyl ether reaction kettle in the technical field of reaction kettle equipment, including reaction kettle, reaction kettle is spherical, reaction kettle is equipped with heat exchange jacket, and medium inlet and medium outlet are equipped on heat exchange jacket;Reaction kettle is equipped with stirring assembly and scraping component in, and stirring assembly includes shaft one, and shaft one is connected with stepper motor one, and stirring rod is equipped on shaft one, and scraping component includes shaft two, and shaft two is connected with stepper motor two, and scraping rod is equipped on shaft two, and scraping rod is the arc shape matched with reaction kettle inner wall.This utility model reaction kettle is spherical, reduces dead angle, and stirring assembly can carry out efficient and sufficient stirring operation to the material in reaction kettle, so that the material in reaction kettle is heated more evenly, reaction is sufficient, and scraping rod avoids the adhesion of material on reaction kettle inner wall, improves the sufficiency and efficiency of reaction.

Description

Technical Field

[0001] This utility model belongs to the technical field of reaction vessel equipment, and specifically relates to a hydroxybutyl vinyl ether reaction vessel. Background Technology

[0002] The acetylene process for producing 4-hydroxybutylvinyl ether generally includes the following steps: 1,4-butanediol is added to a reactor, the temperature is raised to 60–200°C, potassium hydroxide is added, the mixture is stirred, a vacuum is maintained, and the dehydration reaction temperature is controlled at 60–200°C. After the dehydration reaction is complete, potassium 1,4-butanediol is obtained. The potassium 1,4-butanediol and 1,4-butanediol are mixed, acetylene is introduced, and the reaction temperature is controlled at 80–150°C and the acetylene gas pressure at 0.1–2 MPa. After the reaction is complete, the mixture is transferred to a distillation column for rectification to obtain 4-hydroxybutylvinyl ether. In the aforementioned dehydration and mixing processes, all are carried out inside a reactor. A heat exchange jacket is installed outside the reactor, through which a heat exchange medium is circulated to heat or cool the materials inside the reactor. However, existing reactors often have many dead zones, leading to insufficient mixing during stirring. Material in these dead zones is continuously heated and tends to stick to the reactor's inner wall, hindering the reaction and production. Therefore, a new hydroxybutyl vinyl ether reactor is urgently needed to solve these technical problems. Utility Model Content

[0003] The purpose of this utility model is to address the shortcomings of the existing technology by providing a hydroxybutyl vinyl ether reactor, including a reactor that is spherical and has a heat exchange jacket outside the reactor, with a medium inlet and a medium outlet on the heat exchange jacket;

[0004] The reactor is equipped with a stirring assembly and a scraping assembly. The stirring assembly includes a first rotating shaft connected to a first stepper motor and a stirring rod on the first rotating shaft. The scraping assembly includes a second rotating shaft connected to a second stepper motor and a scraping rod on the second rotating shaft. The scraping rod is arc-shaped and fits against the inner wall of the reactor.

[0005] It should be noted that the spherical shape of the reactor reduces dead corners inside the vessel, and the stirring rod and scraper rod allow for more thorough mixing, reducing material residue on the inner wall of the reactor.

[0006] Preferably, the upper end of the second rotating shaft passes through the reactor and is connected to a bevel gear, which meshes with the second bevel gear. The second bevel gear is connected to a stepper motor, which is fixed to the outer wall of the reactor. The second rotating shaft has a vertical receiving cavity inside. A support plate is fixed to the top of the second rotating shaft, and the first stepper motor is fixed to the support plate. The first stepper motor is connected to an external power supply through a conductive slip ring, so that the first stepper motor does not affect its own operation when rotating with the second rotating shaft. The lower end of the first rotating shaft extends into the receiving cavity and is rotatably connected to the bottom of the receiving cavity through a bearing. The upper end of the first rotating shaft extends from the top of the receiving cavity, passes through the support plate, and is connected to the first stepper motor. The first rotating shaft is rotatably connected to the support plate through a bearing.

[0007] The central part of the receiving cavity is provided with a transmission cavity. A bevel gear three is fixed on a rotating shaft one in the transmission cavity. The stirring rod includes a horizontal rod and stirring blades. Multiple stirring blades are fixed on the horizontal rod. One end of the horizontal rod extends into the transmission cavity and is connected to a bevel gear four. The bevel gear four meshes with the bevel gear three. The horizontal rod is rotatably connected to the side wall of the transmission cavity through a bearing three.

[0008] It should be noted that when stepper motor 2 rotates, bevel gear 2 drives bevel gear 1 to rotate, which in turn drives shaft 2 to rotate. Shaft 2 drives the scraper rod and stirring rod to rotate around the central axis of shaft 2 (achieving horizontal stirring). At this time, stepper motor 1 rotates with shaft 2. When stepper motor 1 is working, it drives shaft 1 to rotate, bevel gear 3 to rotate, which in turn drives bevel gear 4 to rotate. The stirring rod rotates on its own, and the horizontal rod drives the stirring blades to rotate (achieving vertical stirring), further improving the stirring effect.

[0009] Preferably, at least two stirring rods are provided, and each stirring rod is evenly distributed around the circumference of the bevel gear three.

[0010] Preferably, the transmission cavity is spherical. This reduces the accumulation of material on the outer wall of the transmission cavity.

[0011] Preferably, the reactor is equipped with inlet and outlet pipes, a temperature sensor, and a pressure sensor. The temperature and pressure sensors can monitor the temperature and pressure inside the reactor, allowing for pressure adjustment by opening the inlet and outlet pipes as needed, and control of the circulation rate of the heat exchange medium in the heat exchange jacket to alter the heating effect. This makes the conditions inside the reactor more suitable for the reaction of the materials.

[0012] Preferably, the upper part of the reactor is provided with an openable feed inlet, and the bottom of the reactor is provided with a discharge pipe, which is equipped with a switch valve.

[0013] This invention also includes other components that enable the normal operation of a hydroxybutyl vinyl ether reactor, such as control components for controlling the circulation of the heat exchange medium in the heating jacket (e.g., a circulation pump), control components for stepper motor one, control components for stepper motor two, control components for switching valves, control components for temperature sensors, control components for pressure sensors, and control components for the inlet valve, all of which are conventional technologies in the field. Furthermore, devices or components not specified in this invention, such as temperature sensors, pressure sensors, switching valves, and circulation pumps, all employ conventional technologies and equipment in the field.

[0014] Working principle: Materials enter the reactor through the feed inlet. A heat exchange medium is introduced into the heat exchange jacket to heat the materials inside the reactor. At this time, stepper motor 2 rotates, and bevel gear 2 drives bevel gear 1 to rotate, which in turn drives shaft 2 to rotate. Shaft 2 drives the scraper and stirring rod to rotate around the central axis of shaft 2 (achieving horizontal stirring). Stepper motor 1 rotates with shaft 2. When stepper motor 1 is working, it drives shaft 1 to rotate, bevel gear 3 to rotate, which in turn drives bevel gear 4 to rotate. The stirring rod rotates on its own, and the horizontal rod drives the stirring blades to rotate (achieving vertical stirring), further improving the stirring effect, making the heating more uniform, and the reaction more thorough and efficient.

[0015] The present invention has the following advantages: the spherical shape of the reactor reduces dead corners, and the stirring component can perform efficient and thorough stirring of the materials in the reactor, making the materials in the reactor heat more evenly and react more fully. The scraper rod prevents the materials from sticking to the inner wall of the reactor, improving the fullness and efficiency of the reaction, which is beneficial to production. Attached Figure Description

[0016] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0017] Figure 1 This is a schematic diagram of the structure of a hydroxybutyl vinyl ether reactor in an embodiment of this utility model.

[0018] In the diagram: 1. Reactor; 2. Heat exchange jacket; 3. Medium inlet; 4. Discharge pipe; 5. Feed inlet; 6. Medium outlet; 7. Rotating shaft two; 8. Receiving cavity; 9. Rotating shaft one; 10. Bevel gear three; 11. Bevel gear four; 12. Horizontal rod; 13. Stirring blade; 14. Bevel gear one; 15. Bevel gear two; 16. Stepper motor two; 17. Support plate; 18. Stepper motor one; 19. Scraper rod; 20. Inlet and outlet air pipes. Detailed Implementation

[0019] The present invention will now be clearly described with reference to the accompanying drawings and specific embodiments. This description is merely for explaining the present invention and is not intended to limit it. Any modifications, equivalent substitutions, improvements, etc., made by those skilled in the art based on the embodiments of the present invention without inventive effort to obtain all other embodiments should be included within the protection scope of the present invention.

[0020] Example 1

[0021] like Figure 1 As shown, this utility model provides a hydroxybutyl vinyl ether reactor, including a reactor 1, which is spherical, and a heat exchange jacket 2 is provided outside the reactor 1. The heat exchange jacket 2 is provided with a medium inlet 3 and a medium outlet 6.

[0022] The reactor 1 is equipped with a stirring assembly and a scraping assembly. The stirring assembly includes a rotating shaft 9 connected to a stepper motor 18, and a stirring rod mounted on the rotating shaft 9. The scraping assembly includes a rotating shaft 7 connected to a stepper motor 16, and a scraping rod 19 mounted on the rotating shaft 7. The scraping rod 19 is arc-shaped and fits against the inner wall of the reactor 1. The spherical shape of the reactor 1 reduces dead corners inside the reactor, and the stirring rod and scraping rod 19 allow for more thorough stirring and reduce material residue on the inner wall of the reactor 1.

[0023] The upper end of the rotating shaft 7 passes through the reactor 1 and is connected to a bevel gear 14. The bevel gear 14 meshes with a bevel gear 15. The bevel gear 15 is connected to a stepper motor 16. The stepper motor 16 is fixed on the outer wall of the reactor 1. The rotating shaft 7 has a vertical receiving cavity 8. The top end of the rotating shaft 7 is fixed with a support plate 17. The stepper motor 18 is fixed on the support plate 17. The stepper motor 18 is connected to an external power supply through a conductive slip ring, so that the stepper motor 18 does not affect its own operation when rotating with the rotating shaft 7. The lower end of the rotating shaft 9 extends into the receiving cavity 8 and is rotatably connected to the bottom of the receiving cavity 8 through a bearing 1. The upper end of the rotating shaft 9 extends from the top of the receiving cavity 8 and passes through the support plate 17 and is connected to the stepper motor 18. The rotating shaft 9 is rotatably connected to the support plate 17 through a bearing 2.

[0024] The middle part of the receiving cavity 8 is provided with a transmission cavity. A bevel gear 10 is fixed on the rotating shaft 9 in the transmission cavity. The stirring rod includes a horizontal rod 12 and stirring blades 13. Multiple stirring blades 13 are fixed on the horizontal rod 12. One end of the horizontal rod 12 extends into the transmission cavity and is connected to a bevel gear 11. The bevel gear 11 meshes with the bevel gear 10. The horizontal rod 12 is rotatably connected to the side wall of the transmission cavity through a bearing 3. Stepper motor 16 rotates, bevel gear 15 drives bevel gear 14 to rotate, which in turn drives shaft 7 to rotate. Shaft 7 drives scraper rod 19 and stirring rod to rotate around the central axis of shaft 7 (achieving horizontal stirring). At this time, stepper motor 18 rotates with shaft 1. When stepper motor 18 is working, it drives shaft 9 to rotate, bevel gear 10 to rotate, which in turn drives bevel gear 11 to rotate. The stirring rod rotates, and horizontal rod 12 drives stirring blade 13 to rotate (achieving vertical stirring), further improving the stirring effect.

[0025] At least two stirring rods are provided, and each stirring rod is evenly distributed around the circumference of the bevel gear 310.

[0026] The transmission cavity is spherical, which reduces the accumulation of material on the outer wall of the transmission cavity.

[0027] The upper part of the reactor 1 is provided with an openable feed inlet 5, and the bottom of the reactor 1 is provided with a discharge pipe 4, which is equipped with a switch valve.

[0028] Materials enter the reactor through the feed inlet. A heat exchange medium (such as steam or heat transfer oil) is introduced into the heat exchange jacket to heat the materials inside the reactor. At this time, stepper motor 2 rotates, and bevel gear 2 drives bevel gear 1 to rotate, which in turn drives shaft 2 to rotate. Shaft 2 drives the scraper and stirring rod to rotate around the central axis of shaft 2 (achieving horizontal stirring). Stepper motor 1 rotates with shaft 2. When stepper motor 1 is working, it drives shaft 1 to rotate, bevel gear 3 to rotate, which in turn drives bevel gear 4 to rotate. The stirring rod rotates on its own, and the horizontal rod drives the stirring blades to rotate (achieving vertical stirring), further improving the stirring effect, making the heating more uniform, and the reaction more thorough and efficient.

[0029] Example 2

[0030] The difference between this embodiment and Embodiment 1 is that the reactor 1 is equipped with an inlet / outlet pipe 20, a temperature sensor, and a pressure sensor. The temperature and pressure sensors can monitor the temperature and pressure inside the reactor 1. As needed, the inlet / outlet pipe 20 can be opened to adjust the pressure, and the circulating pump can be controlled to change the circulation rate of the heat exchange medium (steam or heat transfer oil) in the heat exchange jacket 2, thereby altering the heating or cooling effect. This makes the conditions inside the reactor 1 more suitable for the reaction of the materials.

[0031] The stepper motor (step 1), motor 2, circulating pump, temperature sensor, pressure sensor, conductive slip ring, inlet and outlet air pipes, and switching valves involved in the above embodiments 1 and 2 are all existing technologies. This application does not make any improvements to them, but only utilizes their existing functions. For their specific structure and principle, please refer to the product manual or existing technical data, which are all existing technologies.

[0032] The embodiments of this utility model have been described above. These descriptions are exemplary and not exhaustive, nor are they limited to the disclosed embodiments. Many modifications and variations will be apparent to those skilled in the art without departing from the scope and spirit of the described embodiments. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A hydroxybutyl vinyl ether reaction vessel, comprising a reaction vessel, characterized in that: The reactor is spherical, and a heat exchange jacket is provided outside the reactor. The heat exchange jacket is provided with a medium inlet and a medium outlet. The reactor is equipped with a stirring assembly and a scraping assembly. The stirring assembly includes a first rotating shaft connected to a first stepper motor and a stirring rod on the first rotating shaft. The scraping assembly includes a second rotating shaft connected to a second stepper motor and a scraping rod on the second rotating shaft. The scraping rod is arc-shaped and fits against the inner wall of the reactor.

2. The hydroxybutyl vinyl ether reactor according to claim 1, characterized in that: The upper end of the second rotating shaft passes through the reactor and is connected to a bevel gear. The bevel gear meshes with the second bevel gear. The second bevel gear is connected to a stepper motor. The stepper motor is fixed on the outer wall of the reactor. The second rotating shaft has a vertical receiving cavity. A support plate is fixed to the top of the second rotating shaft. The first stepper motor is fixed on the support plate. The lower end of the first rotating shaft extends into the receiving cavity and is rotatably connected to the bottom of the receiving cavity through a bearing. The upper end of the first rotating shaft extends from the top of the receiving cavity, passes through the support plate, and is connected to the first stepper motor. The first rotating shaft is rotatably connected to the support plate through a bearing. The central part of the receiving cavity is provided with a transmission cavity. A bevel gear three is fixed on a rotating shaft one in the transmission cavity. The stirring rod includes a horizontal rod and stirring blades. Multiple stirring blades are fixed on the horizontal rod. One end of the horizontal rod extends into the transmission cavity and is connected to a bevel gear four. The bevel gear four meshes with the bevel gear three. The horizontal rod is rotatably connected to the side wall of the transmission cavity through a bearing three.

3. The hydroxybutyl vinyl ether reactor according to claim 2, characterized in that: At least two stirring rods are provided, and each stirring rod is evenly distributed around the circumference of the bevel gear three.

4. The hydroxybutyl vinyl ether reactor according to claim 2, characterized in that: The transmission cavity is spherical.

5. The hydroxybutyl vinyl ether reactor according to claim 1, characterized in that: The reactor is equipped with inlet and outlet pipes, a temperature sensor, and a pressure sensor.

6. The hydroxybutyl vinyl ether reactor according to claim 1, characterized in that: The upper part of the reactor is provided with an openable feed inlet, and the bottom of the reactor is provided with a discharge pipe, which is equipped with a switch valve.

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