Rectification equipment for high-purity diethylene glycol

Abstract

The utility model belongs to rectifying equipment technical field especially relates to a kind of rectifying equipment of high-purity diethylene glycol, including equipment support base, and distillation kettle, rectifying tower and condensing collection equipment installed on equipment support base, the discharge tap is installed in the lower end of rectifying tower. Rotatable rotary base is installed below discharge tap, and four groups of detachable collection cylinders are installed on rotary base, so that four groups of collection cylinders can be placed in four groups of placing seats on rotary base, so that rotary base drives four groups of collection cylinders to rotate periodically to the discharge port below to collect diethylene glycol, and the weight of collection cylinder is monitored in real time by pressure sensor, and then flow guide ring is arranged above rotary base, so that collection cylinder is replaced when rotating, and flow guide ring accurately guides diethylene glycol into collection cylinder through flow guide groove, without closing discharge tap.

Description

Technical Field

[0001] This utility model relates to the field of chemical production equipment technology, and in particular to a distillation device for high-purity diethylene glycol. Background Technology

[0002] Diethylene glycol, also known as diethylene glycol, is an important chemical product. It can be used directly as a solvent for various applications, a natural gas dehydrating agent, an aromatic hydrocarbon separation and extraction agent, a textile lubricant, softener, and finishing agent. It is also used as an antifreeze component in brake fluid and compressor lubricating oil, and in the formulation of cleaning agents. During the production process of diethylene glycol, various impurities are usually present. The presence of these impurities affects the performance and application range of diethylene glycol. Therefore, it is necessary to purify diethylene glycol to obtain a high-purity product. Existing diethylene glycol distillation equipment can basically meet daily usage needs, but there are still some shortcomings that require improvement.

[0003] The widely used distillation equipment for high-purity diethylene glycol requires multiple vaporization-condensation cycles to achieve separation and purification before the high-purity diethylene glycol is discharged from the bottom of the column. However, in practical applications, the discharged diethylene glycol is usually collected manually by placing a collection tube. This manual operation is not only difficult to accurately control the collection capacity of diethylene glycol, which can easily lead to insufficient collection or overflow and waste, but also requires operators to closely monitor the status of the collection tube for a long time, consuming a lot of manpower and time. To address these issues, we propose a distillation device for high-purity diethylene glycol. Utility Model Content

[0004] The purpose of this invention is to provide a distillation apparatus for high-purity diethylene glycol to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a high-purity diethylene glycol distillation device, comprising a device support base, and a distillation kettle, a distillation column, and a condensation collection device installed on the device support base. A discharge tap is installed at the lower end of the distillation column, and a rotating seat is installed at the front end of the distillation column. A rotating base is rotatably connected to the top of the rotating seat. Four sets of placement seats are evenly spaced along the axis of the rotating base on the top of the rotating base. A collection cylinder is placed inside each placement seat. A collar is fixed to the middle of the outer wall of each collection cylinder, and protruding handles are installed on both sides of the collar. A pressure sensor is installed at the bottom of the inner wall of each placement seat. A drive assembly is provided at the bottom of the rotating base. Four sets of guide rods are evenly spaced at the top of the rotating base. A flow guide ring is installed at the top of each of the four sets of guide rods. Four sets of through holes are evenly spaced on the flow guide ring, and flow guide grooves are provided between adjacent through holes. A clamping assembly is provided at the lower end of the flow guide ring.

[0006] As an improved technical solution, the drive assembly includes a gear ring fixed to the bottom of the rotating chassis, a servo motor mounted on the side end of the swivel, and a gear mounted on the output end of the servo motor, the gear meshing with the gear ring.

[0007] As an improved technical solution, the flow guide groove on the flow guide ring gradually deepens in a clockwise direction.

[0008] As an improved technical solution, the clamping assembly includes a pressure plate disposed below the guide ring, four sets of guide rods are provided with sliding sleeves on their outer sides, the four sets of sliding sleeves are connected to the outer wall of the pressure plate by connecting rods, each sliding sleeve is provided with a return spring at its top end, the return spring is wound around the outside of the guide rod, a pull handle is installed at the middle of the top end of the pressure plate, and the outer wall of the bottom end of the pressure plate is in contact with the outer wall of the top end of the collar on the collecting cylinder.

[0009] As an improved technical solution, the input terminals of the pressure sensor and the servo motor are both electrically connected to an external controller via wires.

[0010] As an improved technical solution, the four sets of through holes on the guide ring correspond to the positions of the four sets of collection cylinders on the rotating chassis.

[0011] As an improved technical solution, the two ends of the return spring are respectively connected to the outer wall of the top end of the sliding sleeve and the outer wall of the bottom end of the guide ring, and the sliding sleeve is elastically connected to the guide ring through the return spring.

[0012] After adopting the above technical solution, the beneficial effects of this utility model are:

[0013] I. This utility model features a rotatable rotating chassis installed below the discharge faucet, on which four detachable collection cylinders are mounted. These cylinders are placed in four mounting seats on the rotating chassis. The rotating chassis, driven by a drive assembly, periodically rotates the four collection cylinders to collect diethylene glycol below the discharge port. A pressure sensor monitors the weight of the collection cylinders in real time. A guide ring positioned above the rotating chassis guides the diethylene glycol into the collection cylinders precisely through a guide groove during rotation. This eliminates the need to close the discharge faucet, ensuring long-term normal operation of the equipment and eliminating the need for prolonged manual monitoring of the collection cylinders.

[0014] II. This utility model has a liftable pressure plate installed below the guide ring, which allows the return spring outside the guide rod to release its elasticity and push the sliding sleeve downward. This allows the four sets of sliding sleeves to drive the pressure plate down to the top of the collar outside the collection cylinder, forming downward pressure on the collection cylinder. This prevents the collection cylinder from shaking in the placement seat, thereby effectively improving the stability of the equipment during use. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0016] Figure 2 This is a partial structural diagram of the rotating chassis of this utility model;

[0017] Figure 3 For the present utility model Figure 2 A schematic diagram of the structure viewed from below;

[0018] Figure 4 For the present utility model Figure 1 A magnified structural diagram at point A.

[0019] In the diagram: 1. Equipment support base; 2. Distillation kettle; 3. Distillation column; 4. Condensation collection equipment; 5. Discharge tap; 6. Rotary seat; 7. Rotating base; 8. Placement seat; 9. Collection cylinder; 10. Collar; 11. Protruding handle; 12. Pressure sensor; 13. Gear ring; 14. Servo motor; 15. Gear; 16. Guide rod; 17. Flow guide ring; 18. Through hole; 19. Flow guide groove; 20. Pressure plate; 21. Sliding sleeve; 22. Return spring; 23. Pull handle. Detailed Implementation

[0020] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0021] This utility model provides a technical solution: such as Figures 1 to 4 As shown, in this embodiment, a high-purity diethylene glycol distillation device includes a device support base 1, a distillation kettle 2, a distillation column 3, and a condensation and collection device 4 installed on the device support base 1. A discharge tap 5 is installed at the lower end of the distillation column 3, and a rotating seat 6 is installed at the front end of the distillation column 3. A rotating base 7 is rotatably connected to the top of the rotating seat 6. Four sets of placement seats 8 are installed at equal intervals along the axis of the rotating base 7. A collection cylinder 9 is placed in each placement seat 8. A collar 10 is fixed in the middle of the outer wall of each collection cylinder 9. A protruding handle 11 is installed on both sides of the collar 10. A pressure sensor 12 is installed at the bottom of the inner wall of each placement seat 8. A drive assembly is provided at the bottom of the rotating base 7. Four sets of guide rods 16 are installed at equal intervals at the top of the rotating base 7. A flow guide ring 17 is installed at the top of the four sets of guide rods 16. Four sets of through holes 18 are opened at equal intervals on the flow guide ring 17. A flow guide groove 19 is provided between adjacent through holes 18. A clamping assembly is provided at the lower end of the flow guide ring 17.

[0022] By installing a rotatable rotating chassis 7 below the discharge faucet 5, and mounting four detachable collection cylinders 9 on the rotating chassis 7, the four collection cylinders 9 can be placed in four placement seats 8 on the rotating chassis 7. The rotating chassis 7 drives the four collection cylinders 9 to rotate periodically to below the discharge port for diethylene glycol collection. The pressure sensor 12 monitors the weight of the collection cylinders 9 in real time. Then, through the guide ring 17 set above the rotating chassis 7, the guide ring 17 accurately guides the diethylene glycol into the collection cylinder 9 through the guide groove 19 when the collection cylinder 9 is rotated and replaced. There is no need to close the discharge faucet 5, thus ensuring that the equipment can operate normally for a long time and that there is no need for manual monitoring of the collection status of the collection cylinders 9.

[0023] In other embodiments, the drive assembly includes a gear ring 13 fixed to the bottom of the rotating chassis 7, a servo motor 14 mounted on the side of the rotary base 6, and a gear 15 mounted on the output end of the servo motor 14, the gear 15 meshing with the gear ring 13.

[0024] When the pressure sensor 12 at the bottom of the placement seat 8 senses that the collection cylinder 9 has reached the specified weight, it sends a signal to the external controller to start the servo motor 14. The servo motor 14 drives the gear 15 to rotate, and the gear ring 13, under the action of the gear 15, drives the rotating chassis 7 to rotate 90 degrees clockwise, thereby quickly completing the replacement of the position of the collection cylinder 9 without the need for manual replacement.

[0025] In other embodiments, the guide grooves 19 on the guide ring 17 gradually deepen in a clockwise direction;

[0026] With this design, when the rotating chassis 7 drives the guide ring 17 to rotate clockwise, the diethylene glycol discharged from the discharge faucet 5 can fall into the guide groove 19, and the guide groove 19 can guide the flow into the next set of through holes 18 that move to the bottom of the discharge faucet 5, so that the discharge faucet 5 does not need to be manually closed.

[0027] In other embodiments, the clamping assembly includes a pressure plate 20 disposed below the guide ring 17, four sets of guide rods 16 are each provided with a sliding sleeve 21, the four sets of sliding sleeves 21 are all connected to the outer wall of the pressure plate 20 by a connecting rod, the top of each sliding sleeve 21 is provided with a return spring 22, the return spring 22 is wrapped around the outside of the guide rod 16, a pull handle 23 is installed in the middle of the top of the pressure plate 20, and the bottom outer wall of the pressure plate 20 is in contact with the top outer wall of the collar 10 on the collection cylinder 9;

[0028] By installing a liftable pressure plate 20 below the guide ring 17, the pressure plate 20 can be raised by pulling the handle 23, causing the pressure plate 20 to drive the four sets of sliding sleeves 21 to rise along the surface of the guide rod 16, and the sliding sleeves 21 to squeeze the return spring 22. When the pressure plate 20 rises to a suitable height, the protrusions 11 on both sides of the collar 10 can be lifted to remove the collection cylinder 9 from the placement seat 8 and pull it out laterally. Then, the empty collection cylinder 9 is put back into the placement seat 8. Then, the pulling force on the handle 23 is released, allowing the return spring 22 outside the guide rod 16 to release its elasticity and push the sliding sleeves 21 downward. The four sets of sliding sleeves 21 drive the pressure plate 20 down to the top of the collar 10 outside the collection cylinder 9, forming downward pressure on the collection cylinder 9, thereby preventing the collection cylinder 9 from shaking in the placement seat 8, thus effectively improving the stability of the equipment during use.

[0029] In other embodiments, the input terminals of both the pressure sensor 12 and the servo motor 14 are electrically connected to an external controller via wires.

[0030] This design enables the pressure sensor 12 to transmit pressure data to the controller, and then the pressure sensor 12 to control the servo motor 14 based on the pressure data.

[0031] In other embodiments, the four sets of through holes 18 on the guide ring 17 correspond to the positions of the four sets of collection cylinders 9 on the rotating chassis 7;

[0032] With this design, the discharge nozzle 5 can smoothly allow the discharged diethylene glycol to fall into the collection cylinder 9 through the through hole 18 on the guide ring 17.

[0033] In other embodiments, the two ends of the return spring 22 are respectively connected to the outer wall of the top end of the sliding sleeve 21 and the outer wall of the bottom end of the guide ring 17, and the sliding sleeve 21 is elastically connected to the guide ring 17 through the return spring 22;

[0034] This design allows the return spring 22 outside the guide rod 16 to continuously apply downward elastic force to the sliding sleeve 21, enabling the four sets of sliding sleeves 21 to drive the pressure plate 20 to move quickly to the collar 10 outside the collecting cylinder 9.

[0035] The electrical components mentioned in this article are all electrically connected to an external main controller and industrial power supply, and the main controller can be a conventional known device such as a computer that provides control.

[0036] It should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A distillation apparatus for high-purity diethylene glycol, comprising an apparatus support base (1), and a distillation kettle (2), a distillation column (3), and a condensation and collection device (4) mounted on the apparatus support base (1), characterized in that: The distillation column (3) is equipped with a discharge tap (5) at its lower end and a rotating base (6) at its front end. A rotating base (7) is rotatably connected to the top of the rotating base (6). Four sets of placement seats (8) are evenly spaced along the axis of the rotating base (7) on the top of the rotating base (7). A collection cylinder (9) is placed inside each placement seat (8). A collar (10) is fixed to the middle of the outer wall of each collection cylinder (9). A protruding handle (11) is installed on both sides of the collar (10). Pressure sensors (12) are installed on the bottom of the inner wall of the placement seat (8). A drive assembly is provided at the bottom of the rotating chassis (7). Four sets of guide rods (16) are installed at equal intervals on the top of the rotating chassis (7). A flow guide ring (17) is installed at the top of the four sets of guide rods (16). Four sets of through holes (18) are opened at equal intervals on the flow guide ring (17). A flow guide groove (19) is provided between adjacent through holes (18). A clamping assembly is provided at the lower end of the flow guide ring (17).

2. The distillation apparatus for high-purity diethylene glycol according to claim 1, characterized in that: The drive assembly includes a gear ring (13) fixed to the bottom of the rotating chassis (7), a servo motor (14) is mounted on the side of the rotating base (6), and a gear (15) is mounted on the output end of the servo motor (14), which meshes with the gear ring (13).

3. The distillation apparatus for high-purity diethylene glycol according to claim 1, characterized in that: The guide groove (19) on the guide ring (17) gradually deepens in a clockwise direction.

4. The distillation apparatus for high-purity diethylene glycol according to claim 1, characterized in that: The clamping assembly includes a pressure plate (20) disposed below the guide ring (17), and four sets of guide rods (16) are provided with sliding sleeves (21) on their outer sides. The four sets of sliding sleeves (21) are all connected to the outer wall of the pressure plate (20) by connecting rods. Each sliding sleeve (21) is provided with a return spring (22) at its top end. The return spring (22) is wrapped around the outside of the guide rod (16). A pull handle (23) is installed in the middle of the top end of the pressure plate (20). The bottom outer wall of the pressure plate (20) is in contact with the top outer wall of the collar (10) on the collecting cylinder (9).

5. A distillation apparatus for high-purity diethylene glycol according to claim 1 or 2, characterized in that: The input terminals of the pressure sensor (12) and the servo motor (14) are both electrically connected to an external controller via wires.

6. The distillation apparatus for high-purity diethylene glycol according to claim 4, characterized in that: The four sets of through holes (18) on the guide ring (17) correspond to the positions of the four sets of collection cylinders (9) on the rotating chassis (7).

7. The distillation apparatus for high-purity diethylene glycol according to claim 4, characterized in that: The two ends of the return spring (22) are respectively connected to the outer wall of the top end of the sliding sleeve (21) and the outer wall of the bottom end of the guide ring (17). The sliding sleeve (21) is elastically connected to the guide ring (17) through the return spring (22).

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