Condensing device for acetonitrile rectification

Abstract

The utility model belongs to the technical field of acetonitrile rectification devices, and particularly relates to a condensing device for acetonitrile rectification, which comprises a condensing tank, a shunting pipe fixedly connected in the condensing tank, a water pump fixedly connected on the upper surface of the shunting pipe, a water pipe fixedly connected at the input end of the water pump, and a water pipe fixedly connected at the output end of the water pump, a first annular pipe is fixedly connected to the outer wall of the flow dividing pipe, a first spray head is fixedly connected into the first annular pipe, a second annular pipe is fixedly connected to the outer wall of the flow dividing pipe, and a second spray head is fixedly connected into the second annular pipe. According to the device, the water tank and the water pump are connected through the water pipe, water is pumped out and conveyed to the shunting pipe, then enters the annular pipe I and the annular pipe II, is sprayed through the spray head I and the spray head II and is fully mixed with acetonitrile steam, and the pump body I and the pump body II work to enable a condensing agent to circularly flow in the condensing pipe, so that the acetonitrile steam is cooled; therefore, the condensation effect of acetonitrile is improved.

Description

Technical Field

[0001] This utility model belongs to the technical field of acetonitrile distillation apparatus, specifically a condenser for acetonitrile distillation. Background Technology

[0002] In the production of acetonitrile, acetonitrile needs to be separated and purified by a distillation unit. After separation and purification by the distillation unit, acetonitrile vapor is generated and discharged through the gas outlet pipe at the top of the distillation unit. A condenser is needed to cool and absorb the discharged acetonitrile vapor and convert it into liquid.

[0003] In the existing technology for condensing acetonitrile vapor, an absorbent is usually added directly to the condenser and mixed with the acetonitrile vapor. The absorbent is usually water. After being added to the condenser, the absorbent will sink to the bottom of the device, while the acetonitrile vapor will float upwards and cannot mix fully with the absorbent, thus affecting the condensation effect of the acetonitrile vapor. Summary of the Invention

[0004] The purpose of this invention is to provide a condensation device for acetonitrile distillation that can fully mix the absorbent with acetonitrile vapor, thereby improving the condensation effect of acetonitrile.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows: a condensing device for acetonitrile distillation is provided, comprising a condensing tank, a distribution pipe fixedly connected inside the condensing tank, a water pump fixedly connected to the upper surface of the distribution pipe, a water pipe fixedly connected to the input end of the water pump, and the output end of the water pump fixedly connected inside the distribution pipe. A first ring pipe is fixedly connected to the outer wall of the distribution pipe, a first nozzle is fixedly connected inside the first ring pipe, a second ring pipe is fixedly connected to the outer wall of the distribution pipe, and a second nozzle is fixedly connected inside the second ring pipe. The first ring pipe and the second ring pipe are fixedly connected inside the condensing tank.

[0006] Optionally, a pump body one is fixedly connected to the outer wall of the condenser, a condenser pipe is fixedly connected to the output end of the pump body one, the condenser pipe is fixedly connected to the inside of the condenser, and a pump body two is fixedly connected to the outer wall of the condenser, the input end of the pump body two is fixedly connected to the inside of the condenser pipe.

[0007] Optionally, a motor is fixedly connected to the upper surface of the condenser, a rotating rod is fixedly connected to the output end of the motor, the rotating rod is rotatably connected to the inside of the condenser, and a stirring blade is fixedly connected to the outer wall of the rotating rod.

[0008] Optionally, an air inlet pipe is fixedly connected to the inside of the condenser, and a piston plate is slidably connected to the inside of the air inlet pipe.

[0009] Optionally, an electric telescopic rod is fixedly connected inside the intake pipe, and the output end of the electric telescopic rod is fixedly connected to the outer wall of the piston plate.

[0010] Optionally, an exhaust pipe is fixedly connected inside the condenser, and a discharge valve is fixedly connected inside the condenser.

[0011] Compared with the prior art, the present invention has the following beneficial effects:

[0012] 1. This utility model connects a water tank to a water pipe, and uses a water pump combined with the water pipe to draw water out and transport it to the inside of the distribution pipe. The water enters the inside of ring pipe one and ring pipe two through the distribution pipe, and is then sprayed through multiple nozzles one and two to fully mix the water and acetonitrile vapor. Pump body one and pump body two work to make the condenser circulate inside the condenser tube. The condenser is used to cool the acetonitrile vapor inside the condenser tank, thereby improving the condensation effect of acetonitrile.

[0013] 2. This utility model uses a motor to drive the rotating rod and stirring blade to rotate. The rotation of the stirring blade stirs the liquid produced by condensation, while water and acetonitrile vapor are fully mixed. The electric telescopic rod inside the air inlet pipe is activated, which drives the piston plate to slide. During the air intake process, the piston plate can be pushed out to allow gas to enter the interior of the condenser. After the air intake is completed, the piston plate slides into the interior of the air inlet pipe to block the liquid produced by condensation from entering the interior of the air inlet pipe. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

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

[0016] Figure 2 This is a cross-sectional structural diagram of the present invention;

[0017] Figure 3 This is a schematic diagram of the structure of the nozzle of this utility model;

[0018] Figure 4 This is a schematic diagram of the structure of the condenser tube of this utility model;

[0019] Figure 5 This is a schematic diagram of the air intake pipe of this utility model.

[0020] In the diagram: 1. Condenser tank; 2. Diverter pipe; 3. Water pump; 4. Water pipe; 5. Ring pipe one; 6. Nozzle one; 7. Ring pipe two; 8. Nozzle two; 9. Pump body one; 10. Condenser pipe; 11. Pump body two; 12. Motor; 13. Rotating rod; 14. Stirring blade; 15. Air inlet pipe; 16. Electric telescopic rod; 17. Piston plate; 18. Exhaust pipe; 19. Discharge valve. Detailed Implementation

[0021] To make the technical problems, technical solutions, and beneficial effects of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0022] It should be noted that when a component is referred to as being "fixed to" or "set on" another component, it can be directly on or indirectly on that other component. When a component is referred to as being "connected to" another component, it can be directly connected to or indirectly connected to that other component.

[0023] It should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0024] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0025] The present invention will now be described. A condensing device for acetonitrile distillation includes a condenser tank 1, a distributor pipe 2 fixedly connected inside the condenser tank 1, a water pump 3 fixedly connected to the upper surface of the distributor pipe 2, a water pipe 4 fixedly connected to the input end of the water pump 3, and the output end of the water pump 3 fixedly connected inside the distributor pipe 2. A first ring pipe 5 is fixedly connected to the outer wall of the distributor pipe 2, and a first nozzle 6 is fixedly connected inside the first ring pipe 5. Multiple first nozzles 6 are provided. A second ring pipe 7 is fixedly connected to the outer wall of the distributor pipe 2, and a second nozzle 8 is fixedly connected inside the second ring pipe 7. Multiple second nozzles 8 are provided, and the spray direction of the spray holes of the first nozzle 6 and the second nozzle 8 is vertically downward. Ring pipe 5 and ring pipe 7 are fixedly connected inside the condenser tank 1. Pump body 9 is fixedly connected to the outer wall of the condenser tank 1. The output end of pump body 9 is fixedly connected to condenser pipe 10. Condenser pipe 10 is fixedly connected to the inside of the condenser tank 1. Pump body 11 is fixedly connected to the outer wall of the condenser tank 1. The input end of pump body 11 is fixedly connected to the inside of condenser pipe 10. The input end of pump body 9 and the output end of pump body 11 are both connected to the condenser box through connecting pipes for pumping refrigerant.

[0026] The present invention provides a condensation device for acetonitrile distillation, which, compared with the prior art, enables the absorbent to be fully mixed with acetonitrile vapor, thereby improving the condensation efficiency of acetonitrile vapor.

[0027] Please refer to another embodiment of this utility model as well. Figures 1 to 5 A motor 12 is fixedly connected to the upper surface of the condenser 1. A rotating rod 13 is fixedly connected to the output end of the motor 12. The rotating rod 13 is rotatably connected inside the condenser 1. An stirring blade 14 is fixedly connected to the outer wall of the rotating rod 13. An air inlet pipe 15 is fixedly connected inside the condenser 1. A piston plate 17 is slidably connected inside the air inlet pipe 15. The outer wall of the piston plate 17 fits against the inner wall of the air inlet pipe 15 to form a sealing structure. An electric telescopic rod 16 is fixedly connected inside the air inlet pipe 15. The output end of the electric telescopic rod 16 is fixedly connected to the outer wall of the piston plate 17. An exhaust pipe 18 is fixedly connected inside the condenser 1. A discharge valve 19 is fixedly connected inside the condenser 1.

[0028] Working Principle: Before use, assemble this invention with the distillation apparatus. Connect the condenser 1, pump 3, pump body 9, pump body 11, motor 12, and electric telescopic rod 16 to the remote control device. Control the temperature of the condenser 1 to be below 81.6℃ using the remote control device. Fix the water pipe 4 inside the water tank. Connect the input end of pump body 9 and the output end of pump body 11 to the condenser via connecting pipes. Connect the inlet pipe 15 to the outlet pipe inside the distillation apparatus. During operation, first start the electric telescopic rod 16. Use the output end of the electric telescopic rod 16 to push the piston plate 17, causing it to slide out of the inlet pipe 15. At this time, acetonitrile vapor enters the condenser 1 through the inlet pipe 15. After the acetonitrile vapor stops emitting, start the electric telescopic rod 16 again, pulling the piston plate 17 so that it slides into the inlet pipe 15 to form a seal. Simultaneously, as the acetonitrile vapor enters the condenser 1, the water pump 3 starts, pumping water through the water pipe 4 to the inside of the distributor pipe 2. After water enters the interior of the diversion pipe 2, it is diverted into the interior of ring pipe 5 and ring pipe 7. The water is sprayed through multiple nozzles 6 and 8. As the acetonitrile vapor rises inside the condenser tank 1, it mixes thoroughly with the sprayed water. At the same time, pumps 9 and 11 are started. Pump 9 draws the refrigerant into the interior of the condenser tube 10, and pump 11 draws the refrigerant out of the condenser tube 10 and transports it back into the condenser box, so that the refrigerant circulates inside the condenser tube 10. The refrigerant cools the acetonitrile vapor. The acetonitrile vapor is cooled while mixing with water and then condenses into liquid, falling to the bottom of the condenser tank 1. During the spraying of water by nozzles 6 and 8, motor 12 is started, which drives the rotating rod 13 and stirring blade 14 to rotate and stir the liquid, helping the water and acetonitrile vapor to mix thoroughly. Water vapor is generated during the condensation process and is discharged through exhaust pipe 18. After condensation, discharge valve 19 is opened to discharge the condensed liquid for recycling.

Claims

1. A condensing apparatus for acetonitrile distillation, comprising a condenser (1), characterized in that: A diversion pipe (2) is fixedly connected inside the condenser (1). A water pump (3) is fixedly connected to the upper surface of the diversion pipe (2). A water pipe (4) is fixedly connected to the input end of the water pump (3). The output end of the water pump (3) is fixedly connected inside the diversion pipe (2). A first ring pipe (5) is fixedly connected to the outer wall of the diversion pipe (2). A first nozzle (6) is fixedly connected inside the first ring pipe (5). A second ring pipe (7) is fixedly connected to the outer wall of the diversion pipe (2). A second nozzle (8) is fixedly connected inside the second ring pipe (7). The first ring pipe (5) and the second ring pipe (7) are fixedly connected inside the condenser (1).

2. The condenser for acetonitrile distillation as described in claim 1, characterized in that: A pump body (9) is fixedly connected to the outer wall of the condenser (1). A condenser tube (10) is fixedly connected to the output end of the pump body (9). The condenser tube (10) is fixedly connected to the inside of the condenser (1). A pump body (11) is fixedly connected to the outer wall of the condenser (1). The input end of the pump body (11) is fixedly connected to the inside of the condenser tube (10).

3. The condenser for acetonitrile distillation as described in claim 1, characterized in that: A motor (12) is fixedly connected to the upper surface of the condenser (1), and a rotating rod (13) is fixedly connected to the output end of the motor (12). The rotating rod (13) is rotatably connected inside the condenser (1), and a stirring blade (14) is fixedly connected to the outer wall of the rotating rod (13).

4. The condenser for acetonitrile distillation as described in claim 1, characterized in that: An air inlet pipe (15) is fixedly connected inside the condenser (1), and a piston plate (17) is slidably connected inside the air inlet pipe (15).

5. The condenser for acetonitrile distillation as described in claim 4, characterized in that: An electric telescopic rod (16) is fixedly connected inside the air intake pipe (15), and the output end of the electric telescopic rod (16) is fixedly connected to the outer wall of the piston plate (17).

6. The condenser for acetonitrile distillation as described in claim 1, characterized in that: An exhaust pipe (18) is fixedly connected inside the condenser (1), and a discharge valve (19) is fixedly connected inside the condenser (1).

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