Ethyl acetate synthesis reboiler with uniformly distributed feed liquid

Abstract

The utility model relates to the technical field of ethyl acetate synthesis processing, in particular to an ethyl acetate synthesis reboiler capable of uniformly distributing feed liquid, which comprises a reaction kettle, a solution inlet is formed in the right position of the surface of the bottom of the reaction kettle, a reboiler base is connected to the surface of the right side of the reaction kettle through a flange, a flow guide pipe is installed on the surface of the left side of the reboiler base, and the driving motor is arranged on the right position of the surface of the front side of the reaction kettle; a driving shaft is arranged at the output end of the driving motor, and first stirring blades distributed circumferentially are arranged on the outer surface of the driving shaft; according to the reaction kettle, the driving motor is arranged and can drive the driving shaft to rotate during operation, so that the first stirring blades on the surface of the driving shaft are driven to stir a solution in the reaction kettle, the solution can be in full contact with the surface of the flow guide pipe, the heating uniformity is improved, and the heat exchange distillation rate is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of ethyl acetate synthesis and processing, in particular to a reboiler for ethyl acetate synthesis with uniform distribution of liquid materials. Background Art

[0002] When ethyl acetate is synthesized and processed, a reboiler is usually installed inside or outside the rectifying column. The solution is introduced into the heat exchanger, and the solution is heated by means of heat exchange to make the solution boil and the generated steam is guided back into the rectifying column for treatment.

[0003] When the existing reboiler for ethyl acetate synthesis is in use, a stirring device is usually not added inside, resulting in a higher temperature of the solution near the heat exchange tube and a lower temperature of the solution far from the heat exchange tube. The overall heating of the solution is uneven, increasing the time required for the solution to boil and affecting the distillation progress.

[0004] Therefore, aiming at the problem that when the above-mentioned reboiler for ethyl acetate synthesis is in use, the solution is in a static state inside the reboiler and the heat exchange efficiency is low due to uneven heating, a reboiler for ethyl acetate synthesis with uniform distribution of liquid materials can be designed. By setting a driving motor to drive the rotation of the main shaft, the first stirring blades on its surface can be driven to stir the solution inside the reaction kettle, improving the uniformity of the solution heating and thus improving the heat exchange and distillation rate. Summary of the Utility Model

[0005] In order to overcome the problem that when the existing reboiler for ethyl acetate synthesis is in use, a stirring device is usually not added inside, the overall heating of the solution is uneven, showing a state of cold and hot stratification, increasing the time required for the solution to boil and affecting the distillation progress.

[0006] The technical solution of the utility model is: a reboiler for ethyl acetate synthesis with uniform distribution of liquid materials, including a reaction kettle; further including a driving motor, a main shaft and first stirring blades. A solution inlet is arranged at the right position on the bottom surface of the reaction kettle, a product outlet is arranged at the left position on the bottom surface of the reaction kettle, a gas outlet is arranged at the middle position on the top surface of the reaction kettle, the right surface of the reaction kettle is connected to a reboiler base through a flange, a diversion pipe is installed on the left surface of the reboiler base, a driving motor is arranged at the right position on the front surface of the reaction kettle, the output end of the driving motor is provided with a main shaft, and circumferentially distributed first stirring blades are arranged on the outer surface of the main shaft.

[0007] Preferably, by setting a driving motor, when operating, it will drive the driving shaft to rotate, thereby driving the first stirring blade on the surface of the driving shaft to stir the solution inside the reaction kettle, so that the solution can fully contact the surface of the diversion pipe, improving the uniformity of heat reception, thereby increasing the heat exchange and distillation rate, and thus solving the problem that the existing reboiler for ethyl acetate synthesis does not have a stirring device inside the container during use, resulting in insufficient contact between the solution and the surface of the heat exchange device and uneven heat reception, which in turn affects the heat exchange and distillation rate.

[0008] As a preference, a driven shaft is rotationally and sealingly connected to the middle position of the front side surface of the reaction kettle. A circumferentially distributed second stirring blade is installed at a position near the rear of the outer surface of the driven shaft. By setting the driven shaft, when the driven shaft rotates, it will drive the second stirring blade on its surface to rotate, thereby cooperating with the first stirring blade to improve the stirring effect.

[0009] As a preference, meshing teeth are installed at positions near the front of the outer surfaces of the driving shaft and the driven shaft. A transmission belt is sleeved on the outer surfaces of the driving shaft and the driven shaft. The engaging teeth on the inner surface of the transmission belt are engaged with the meshing teeth. By setting the transmission belt, when the driving shaft rotates, the meshing teeth on its surface are engaged with the engaging teeth on the inner surface of the transmission belt, thereby driving the transmission belt to rotate, and similarly driving the driven shaft to rotate.

[0010] As a preference, a baffle is installed at a position near the left inside the reaction kettle. A lifting plate is slidably connected inside the baffle. By setting the baffle, the liquid level height inside the reaction kettle can be controlled to prevent the liquid level from being lower than the overall height of the diversion pipe and causing dry burning.

[0011] As a preference, a sealing gasket is provided at a position corresponding to the lifting plate on the upper side of the inner surface of the reaction kettle. The sealing gasket is attached to the upper surface of the lifting plate. By setting the sealing gasket, when the lifting plate rises, the top will be attached to the sealing gasket, thereby partitioning the inside of the reaction kettle and reducing the steam flow space, increasing the distillation rate.

[0012] As a preference, a sleeve is provided at a position corresponding to the lifting plate on the upper surface of the reaction kettle. A rotating rod is threadedly connected to the inner surface of the sleeve. The bottom surface of the rotating rod is rotatably connected to the top surface of the lifting plate. By setting the rotating rod, when the rotating rod is rotated clockwise, it will drive the lifting plate to descend, thereby discharging the heat-exchanged solution, and when rotated counterclockwise, it can drive the lifting plate to rise and thus be attached to the sealing gasket.

[0013] Preferably, a flow dividing plate is arranged at the middle position inside the reboiler base, a high-temperature fluid inlet is arranged on the upper surface of the reboiler base, and a condensate pipe orifice is arranged on the bottom surface of the reboiler base. By arranging the flow dividing plate, it can be ensured that the high-temperature fluid can smoothly enter from the upper pipe orifice of the heat conduction pipe and discharge from the lower pipe orifice, and the cold and hot fluids will not contact each other inside the reboiler base, thereby improving the heat exchange quality.

[0014] The beneficial effects of the present utility model are as follows:

[0015] 1. By arranging a driving motor, when it operates, it will drive the driving shaft to rotate, thereby driving the first stirring blade on the surface of the driving shaft to stir the solution inside the reaction kettle, so that the solution can fully contact the surface of the diversion pipe, improving the uniformity of heat reception, and thus improving the heat exchange and distillation rate, thereby solving the problem that in the existing reboiler for ethyl acetate synthesis, no stirring device is arranged inside the container, and the solution does not fully contact the surface of the heat exchange device, resulting in uneven heat reception and further affecting the heat exchange and distillation rate;

[0016] 2. By arranging a driven shaft, when the driven shaft rotates, it will drive the second stirring blade on its surface to rotate, thereby cooperating with the first stirring blade to improve the stirring effect. And by arranging a transmission belt, when the driving shaft rotates, the meshing teeth on its surface are engaged with the teeth on the inner surface of the transmission belt, thereby driving the transmission belt to rotate, and similarly driving the driven shaft to rotate. Description of the Drawings

[0017] Figure 1 Shown is a three-dimensional structural schematic diagram of a reboiler for ethyl acetate synthesis with uniform distribution of liquid materials of the present utility model;

[0018] Figure 2 Shown is a three-dimensional structural schematic diagram of the mounting base of a reboiler for ethyl acetate synthesis with uniform distribution of liquid materials of the present utility model;

[0019] Figure 3 Shown is a half-sectional three-dimensional structural schematic diagram of the mounting base of a reboiler for ethyl acetate synthesis with uniform distribution of liquid materials of the present utility model;

[0020] Figure 4 Shown is a three-dimensional structural schematic diagram of the first stirring blade of a reboiler for ethyl acetate synthesis with uniform distribution of liquid materials of the present utility model;

[0021] Figure 5 Shown is a three-dimensional structural schematic diagram of the baffle of a reboiler for ethyl acetate synthesis with uniform distribution of liquid materials of the present utility model.

[0022] Description of the reference numerals: 1, reactor; 2, solution inlet; 3, product outlet; 4, gas outlet; 5, reboiler base; 6, high-temperature fluid inlet; 7, condensate pipe orifice; 8, diversion pipe; 9, drive motor; 10, driving shaft; 11, first stirring blade; 12, driven shaft; 13, second stirring blade; 14, meshing teeth; 15, drive belt; 16, baffle plate; 17, gasket; 18, lifting plate; 19, sleeve; 20, rotating rod; 21, flow dividing plate. Detailed implementation mode

[0023] The present utility model will be further described below in conjunction with the accompanying drawings and embodiments.

[0024] Please refer to Figures 1-5 , the present utility model provides an embodiment: a reboiler for synthesizing ethyl acetate with uniform distribution of feed liquid, comprising a reactor 1; further comprising a drive motor 9, a driving shaft 10 and a first stirring blade 11. A solution inlet 2 is arranged at the right position on the bottom surface of the reactor 1, a product outlet 3 is arranged at the left position on the bottom surface of the reactor 1, a gas outlet 4 is arranged at the middle position on the top surface of the reactor 1, the right surface of the reactor 1 is connected with a reboiler base 5 through a flange, a diversion pipe 8 is installed on the left surface of the reboiler base 5, a drive motor 9 is arranged at the right position on the front surface of the reactor 1, the output end of the drive motor 9 is provided with a driving shaft 10, and a circumferentially distributed first stirring blade 11 is arranged on the outer surface of the driving shaft 10. By arranging the drive motor 9, when operating, it will drive the driving shaft 10 to rotate, thereby driving the first stirring blade 11 on the surface of the driving shaft 10 to stir the solution inside the reactor 1, so that the solution can fully contact the surface of the diversion pipe 8, improving the uniformity of heat reception, and thus improving the heat exchange and distillation rate.

[0025] Please refer to Figures 1-5, in this embodiment, a driven shaft 12 is rotatably and sealingly connected to the middle position of the front side surface of the reaction kettle 1. A circumferentially distributed second stirring blade 13 is installed at a position near the rear of the outer surface of the driven shaft 12. By providing the driven shaft 12, when the driven shaft 12 rotates, it will drive the second stirring blade 13 on its surface to rotate, so as to cooperate with the first stirring blade 11 to improve the stirring effect. Meshing teeth 14 are installed at positions near the front of the outer surfaces of the driving shaft 10 and the driven shaft 12. A transmission belt 15 is sleeved on the outer surfaces of the driving shaft 10 and the driven shaft 12. The engaging teeth on the inner surface of the transmission belt 15 are engaged with the meshing teeth 14. By providing the transmission belt 15, when the driving shaft 10 rotates, the meshing teeth 14 on its surface are engaged with the engaging teeth on the inner surface of the transmission belt 15, thereby driving the transmission belt 15 to rotate, and similarly driving the driven shaft 12 to rotate. A baffle 16 is installed at a position near the left inside of the reaction kettle 1. A lifting plate 18 is slidably connected to the inside of the baffle 16. By providing the baffle 16, the liquid level height inside the reaction kettle 1 can be controlled to avoid dry burning when the liquid level height is lower than the overall height of the diversion pipe 8.

[0026] Please refer to Figures 3-5 , in this embodiment, a sealing gasket 17 is provided at a position on the upper side of the inner surface of the reaction kettle 1 corresponding to the lifting plate 18. The sealing gasket 17 is attached to the upper surface of the lifting plate 18. By providing the sealing gasket 17, when the lifting plate 18 rises, the top will be attached to the sealing gasket 17, thereby partitioning the inside of the reaction kettle 1 and reducing the flow space of the steam to improve the distillation rate. A sleeve 19 is provided at a position on the upper surface of the reaction kettle 1 corresponding to the lifting plate 18. A rotating rod 20 is threadedly connected to the inner surface of the sleeve 19. The bottom surface of the rotating rod 20 is rotatably connected to the top surface of the lifting plate 18. By providing the rotating rod 20, when the rotating rod 20 is rotated clockwise, the lifting plate 18 will be driven to descend, so that the heat-exchanged solution can be discharged. When rotated counterclockwise, the lifting plate 18 can be driven to rise and fit with the sealing gasket 17. A flow dividing plate 21 is provided at the middle position inside the reboiler base 5. A high-temperature fluid inlet 6 is provided on the upper surface of the reboiler base 5. A condensing pipe orifice 7 is provided on the bottom surface of the reboiler base 5. By providing the flow dividing plate 21, it can be ensured that the high-temperature fluid can smoothly enter from the upper pipe orifice of the heat conduction pipe and discharge from the lower pipe orifice, and the hot and cold fluids will not contact each other inside the reboiler base 5, thereby improving the heat exchange quality.

[0027] When working, by setting the driven shaft 12, when the driven shaft 12 rotates, it will drive the second stirring blade 13 on its surface to rotate, so as to cooperate with the first stirring blade 11 to improve the stirring effect. And by setting the transmission belt 15, when the driving shaft 10 rotates, the meshing teeth 14 on its surface are engaged with the engaging teeth on the inner surface of the transmission belt 15, so as to drive the transmission belt 15 to rotate. Similarly, the driven shaft 12 is driven to rotate. And by setting the baffle plate 16, the liquid level height inside the reactor 1 can be controlled to avoid the situation of dry burning due to the liquid level height being lower than the overall height of the diversion pipe 8. And by setting the gasket 17, when the lifting plate 18 rises, the top will fit with the gasket 17, so as to partition the inside of the reactor 1, reduce the flow space of steam, and improve the distillation rate. And by setting the rotating rod 20, when the rotating rod 20 is rotated clockwise, the lifting plate 18 will be driven to descend, so that the solution after heat exchange can be discharged. When rotated counterclockwise, the lifting plate 18 can be driven to rise, so as to fit with the gasket 17. And by setting the flow dividing plate 21, it can ensure that the high-temperature fluid can smoothly enter from the upper pipe orifice of the heat conduction pipe and discharge from the lower pipe orifice, and the hot and cold fluids will not contact each other inside the reboiler base 5, so as to improve the heat exchange quality.

[0028] Through the above steps, by setting the drive motor 9, when operating, it will drive the driving shaft 10 to rotate, so as to drive the first stirring blade 11 on the surface of the driving shaft 10 to stir the solution inside the reactor 1, so that the solution can fully contact the surface of the diversion pipe 8, improve the uniformity of heat reception, and thus improve the heat exchange and distillation rate, so as to solve the problem that the existing reboiler for ethyl acetate synthesis does not have a stirring device inside the container during use, the solution does not fully contact the surface of the heat exchange device, resulting in uneven heat reception, and further affecting the heat exchange and distillation rate.

Claims

1. A reboiler for ethyl acetate synthesis with uniform distribution of feed liquid, comprising a reaction kettle (1); characterized in that: The reactor (1) further comprises a driving motor (9), a driving shaft (10) and a first stirring blade (11); a solution inlet (2) is arranged at the right position of the bottom surface of the reactor (1); a product outlet (3) is arranged at the left position of the bottom surface of the reactor (1); a gas outlet (4) is arranged at the middle position of the top surface of the reactor (1); the right side surface of the reactor (1) is connected to a reboiler base (5) via a flange; a flow guide pipe (8) is installed on the left side surface of the reboiler base (5); a driving motor (9) is arranged at the right position of the front side surface of the reactor (1); a driving shaft (10) is arranged at the output end of the driving motor (9); and first stirring blades (11) distributed circumferentially are arranged on the outer surface of the driving shaft (10).

2. The ethyl acetate synthesis reboiler with uniform liquid distribution according to claim 1, characterized in that: A driven shaft (12) is rotatably sealed and connected to the middle of the front side surface of the reactor (1), and a circumferentially distributed second stirring blade (13) is installed at a rear position of the outer surface of the driven shaft (12).

3. The ethyl acetate synthesis reboiler with uniform liquid distribution according to claim 2, characterized in that: Meshing teeth (14) are installed at the front positions of the outer surfaces of the driving shaft (10) and the driven shaft (12); a transmission belt (15) is sleeved on the outer surfaces of the driving shaft (10) and the driven shaft (12); and the locking teeth on the inner surface of the transmission belt (15) mesh with the meshing teeth (14).

4. The reboiler for ethyl acetate synthesis with uniform liquid distribution according to claim 1, characterized in that: A baffle plate (16) is installed on the left side of the interior of the reaction kettle (1), and a lifting plate (18) is slidably connected to the interior of the baffle plate (16).

5. The reboiler for ethyl acetate synthesis with uniform liquid distribution according to claim 4, characterized in that: A sealing gasket (17) is provided at a position on the upper side of the inner surface of the reaction kettle (1) corresponding to the lifting plate (18), and the sealing gasket (17) is in contact with the upper surface of the lifting plate (18).

6. The reboiler for ethyl acetate synthesis with uniform liquid distribution according to claim 4, characterized in that: A sleeve (19) is provided at a position on the upper surface of the reaction kettle (1) corresponding to the lifting plate (18), a rotating rod (20) is threadedly connected to the inner surface of the sleeve (19), and the bottom surface of the rotating rod (20) is rotatably connected to the top surface of the lifting plate (18).

7. The reboiler for ethyl acetate synthesis with uniform liquid distribution according to claim 1, characterized in that: A diverter plate (21) is arranged at the middle position inside the reboiler base (5), a high-temperature fluid inlet (6) is arranged on the upper surface of the reboiler base (5), and a condensation pipe opening (7) is arranged on the bottom surface of the reboiler base (5).

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