Reduced pressure distillation device

Abstract

The utility model discloses a reduced pressure distillation device, which relates to the technical field of distillation devices and comprises a distillation furnace and a condensation cylinder, the condensation cylinder is positioned on one side of the distillation furnace and is matched with the distillation furnace, a plurality of electric heating wires are arranged on the inner wall of the distillation furnace, and a pressure reduction mechanism is arranged at the top of the distillation furnace. The pressure reducing mechanism comprises an L-shaped pressure reducing pipe, a sealing ring, a sealing shaft and a connecting rod, and the L-shaped pressure reducing pipe is located at the top of the distillation furnace and fixedly connected with the distillation furnace. The sealing shaft is reset through the two reset springs, so that the L-shaped pressure reducing pipe is sealed through the sealing shaft and the sealing ring, foreign materials such as external dust are prevented from entering the distillation furnace, the structure can automatically realize pressure reduction when high pressure occurs in the distillation furnace, and safety accidents caused by overlarge pressure in the distillation furnace are avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of distillation devices, in particular to a vacuum distillation device. Background Art

[0002] Distillation is a thermodynamic separation process that utilizes the different boiling points of components in a mixed liquid or liquid-solid system to evaporate the low-boiling-point component and then condense it to separate the entire component. It is a unit operation process that combines the two unit operations of evaporation and condensation.

[0003] A Chinese utility model patent with application number 201821655355.4 proposes a vacuum distillation device for purification, comprising: a distillation kettle; a stirring device is arranged in the distillation kettle; the stirring device comprises a rotating motor, the rotating motor is connected to a sun gear, and the sun gear is respectively meshed with three planetary gears along the circumferential direction; it also comprises a gear ring meshed with the three planetary gears; the three planetary gears are respectively rotatably connected to a fixed frame located inside the distillation kettle, the sun gear is fixedly connected to a stirring shaft, and a stirring blade is arranged on the stirring shaft, and side scrapers are symmetrically arranged on the gear ring, the side scrapers are attached to the side walls of the distillation kettle, and lower scrapers are connected between the bottoms of the symmetrical side scrapers, and the lower scrapers are attached to the bottom plate of the distillation kettle; by providing a sun gear and a gear ring with opposite rotation directions, convection is formed during the stirring process, the mixing and stirring are more uniform, and the distillation speed is accelerated; and a side scraper is provided for cleaning the adhesives on the inner wall of the distillation kettle, so that the adhesives in the distillation kettle can be better mixed and distilled.

[0004] After the improvement, the above device is equipped with a sun gear that rotates in the opposite direction to the gear ring, so that convection is formed during the stirring process, the mixing and stirring are more uniform, and the distillation speed is accelerated. However, during the heating process, as the temperature rises, the pressure inside the distillation device will increase. Once the pressure is too high, there will be a safety hazard. For this reason, we proposed a vacuum distillation device. Utility Model Content

[0005] In view of the deficiencies in the prior art, the utility model provides a vacuum distillation device to solve the problems raised in the above background technology.

[0006] To achieve the above objectives, the utility model is implemented through the following technical solutions: a vacuum distillation device, comprising a distillation furnace and a condensing cylinder, the condensing cylinder is located on one side of the distillation furnace and cooperates with it, the inner wall of the distillation furnace is provided with a plurality of electric heating wires, the top of the distillation furnace is provided with a vacuum mechanism, the vacuum mechanism comprises an L-shaped vacuum tube, a sealing ring, a sealing shaft and a connecting rod, the L-shaped vacuum tube is located at the top of the distillation furnace and is fixedly connected with it, the sealing ring is located inside the L-shaped vacuum tube and is fixedly connected with it, a vacuum hole is provided inside the sealing ring, the sealing shaft cooperates with the vacuum hole, the connecting rod is located inside the L-shaped vacuum tube and is slidably connected with it, a mounting plate is fixedly installed inside the L-shaped vacuum tube, a T-shaped slide is provided on the top of the mounting plate, two reset springs are fixedly installed inside the T-shaped slide, a T-shaped slider is slidably connected inside the T-shaped slide and between the two reset springs, the T-shaped slider is fixedly connected to the connecting rod, the T-shaped slider is located between the two reset springs and is fixedly connected with them, and a water-repellent non-woven fabric is provided at one end of the sealing ring.

[0007] Preferably, a connecting pipe is fixedly connected to the top of the distillation furnace, and the connecting pipe is arranged to be inclined downward. The connecting pipe is fixedly connected to the condensing cylinder, and an outer condensing chamber is arranged inside the condensing cylinder. An inner cylinder is fixedly installed inside the condensing cylinder. A heat dissipation port is opened on the top of the condensing cylinder, and a water-repellent non-woven fabric is arranged on the outside of the heat dissipation port. By filling the outer condensing chamber with cold water, the cooling of the distilled water can be accelerated, and its cooling can be further accelerated through the heat dissipation port.

[0008] Preferably, a serpentine tube is fixedly installed inside the condensing cylinder, and the serpentine tube passes through the inner cylinder and is connected with the outer condensing chamber. The serpentine tube can accelerate the cooling of the condensed water entering the condensing cylinder.

[0009] Preferably, a feeding pipe is fixedly connected to the top of the distillation furnace, and a sealing cover is threadedly connected to the top of the feeding pipe. A threaded groove is provided on the outer side of the feeding pipe, and a threaded ring is provided on the inner wall of the sealing cover. The threaded ring is threadedly connected to the threaded groove, and the sealing cover can be sealed by the provided threaded groove and threaded ring.

[0010] Preferably, a counterweight ball is fixedly installed at one end of the sealing ring, and the counterweight ball is fixedly connected to a water-repellent non-woven fabric. A guide plate is fixedly installed at one end of the sealing ring, and a guide groove is provided on the top of the guide plate. The water-repellent non-woven fabric can prevent water loss, and the water can be transported back to the interior of the distillation furnace through the guide plate and the guide groove.

[0011] Preferably, a motor is fixedly installed on the top of the distillation furnace, a stirring roller is rotatably connected to the inside of the distillation furnace, the output end of the motor is fixedly connected to one end of the stirring roller, and a plurality of stirring paddles are fixedly installed on the outside of the stirring roller. The arranged stirring paddles and stirring shaft can make the material inside the distillation furnace heated evenly.

[0012] Preferably, an activated carbon plate is clamped at one end of the L-shaped pressure reducing tube, a clamping block 1 is fixedly installed on the outer side of the L-shaped pressure reducing tube, and a clamping block 2 is fixedly connected to one end of the activated carbon plate, and the clamping block 2 is clamped with the clamping block 1. The exhaust gas can be purified by the set activated carbon plate to avoid environmental pollution, and the activated carbon plate can be replaced by the set clamping block 1 and the clamping block 2, thereby improving the purification effect.

[0013] Preferably, one end of the condensing cylinder is fixedly connected to a drain pipe, and an electromagnetic valve is fixedly installed on the outer side of the drain pipe, so that the distilled water inside the condensing cylinder can be discharged through the provided drain pipe.

[0014] Preferably, a control panel is fixedly installed at one end of the distillation furnace, and the solenoid valve, motor and electric heating wire are electrically connected to the control panel. The above structure is controlled by the control panel, so that the user can control the device conveniently.

[0015] The utility model provides a vacuum distillation device, which has the following beneficial effects:

[0016] 1. The reduced pressure distillation device continuously heats the electric heating wire, and the pressure inside the distillation furnace continuously increases, thereby pushing the sealing shaft to move through the T-shaped slider and the T-shaped slide groove, squeezing one of the return springs and stretching the other return spring, so that the sealing shaft and the sealing ring are no longer sealed, and the pressure reducing hole leaks out, so that the gas can be quickly discharged at this time, and the water molecules in the gas are blocked by a pair of water-repellent non-woven fabrics to avoid waste of raw materials. After the decompression is completed, the sealing shaft is reset by two return springs, so that the L-shaped decompression tube is sealed by the sealing shaft and the sealing ring, thereby preventing external dust and other debris from entering the distillation furnace. Therefore, the structure can automatically achieve decompression when high pressure appears inside the distillation furnace, avoiding safety accidents caused by excessive pressure inside the distillation furnace.

[0017] 2. The vacuum distillation device transports water droplets formed by the condensation of part of the steam to the inside of the condensation cylinder through the provided connecting pipe, thereby cooling the outer condensation chamber by filling it with cold water, and the provided serpentine pipe and heat dissipation port facilitate rapid cooling, thereby greatly improving the cooling speed of the distilled water through triple cooling. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1It is a schematic diagram of the structure of the utility model;

[0019] Figure 2 It is a cross-sectional view of the utility model;

[0020] Figure 3 This is a cross-sectional view of the feeding pipe of the utility model;

[0021] Figure 4 It is a cross-sectional view of the L-shaped pressure reducing pipe of the utility model.

[0022] In the figure: 1. distillation furnace; 2. condensation cylinder; 3. control panel; 4. motor; 5. feeding pipe; 6. sealing cover; 7. connecting pipe; 8. drain pipe; 9. solenoid valve; 10. heat dissipation port; 12. outer condensation chamber; 13. inner cylinder; 14. serpentine pipe; 15. stirring roller; 16. stirring paddle; 17. electric heating wire; 18. L-shaped pressure reducing pipe; 19. sealing ring; 20. counterweight ball; 21. water-repellent non-woven fabric 1; 22. guide plate; 23. guide groove; 24. connecting rod; 25. clamping block 1; 26. clamping block 2; 27. activated carbon plate; 28. mounting plate; 29. ​​T-shaped slide groove; 30. reset spring; 31. T-shaped slider; 32. sealing shaft; 33. pressure reducing hole; 35. threaded groove; 36. threaded ring. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0024] See also Figures 1 to 4The utility model provides a technical solution: a vacuum distillation device, including a distillation furnace 1 and a condensation cylinder 2, the condensation cylinder 2 is located on one side of the distillation furnace 1 and cooperates with it, the inner wall of the distillation furnace 1 is provided with a plurality of electric heating wires 17, and the raw materials inside the distillation furnace 1 are heated by the electric heating wires 17, and a vacuum mechanism is provided on the top of the distillation furnace 1, the vacuum mechanism includes an L-shaped vacuum tube 18, a sealing ring 19, a sealing shaft 32 and a connecting rod 24, the L-shaped vacuum tube 18 is located on the top of the distillation furnace 1 and is fixedly connected thereto, the sealing ring 19 is located inside the L-shaped vacuum tube 18 and is fixedly connected thereto, a vacuum hole 33 is provided inside the sealing ring 19, the sealing shaft 32 cooperates with the vacuum hole 33, the connecting rod 24 is located inside the L-shaped vacuum tube 18 and is slidably connected thereto, a mounting plate 28 is fixedly installed inside the L-shaped vacuum tube 18, and a T-shaped slide groove 2 is provided on the top of the mounting plate 28 9. Two return springs 30 are fixedly installed inside the T-shaped slide groove 29. A T-shaped slider 31 is slidably connected inside the T-shaped slide groove 29 and located between the two return springs 30. The T-shaped slider 31 is fixedly connected to the connecting rod 24. The T-shaped slider 31 is located between the two return springs 30 and fixedly connected thereto. A water-repellent non-woven fabric 21 is provided at one end of the sealing ring 19. When the inside of the distillation furnace 1 becomes hotter and hotter, the pressure also becomes greater and greater, so that the pressure will push the sealing shaft 32 to slide through the T-shaped slider 31 and the T-shaped slide groove 29, thereby leaking the pressure reducing hole 33 and causing gas to flow out from the inside, thereby reducing the pressure inside the distillation furnace 1. After the pressure returns to normal, the T-shaped slider 31 is reset by the two reset springs 30, thereby driving the sealing shaft 32 to reset, sealing the pressure reducing hole 33, and preventing water loss through the water-repellent non-woven fabric 21.

[0025] A connecting pipe 7 is fixedly connected to the top of the distillation furnace 1. The connecting pipe 7 is arranged to be tilted downward. The connecting pipe 7 is fixedly connected to the condensation cylinder 2. An outer condensation chamber 12 is arranged inside the condensation cylinder 2. An inner cylinder 13 is fixedly installed inside the condensation cylinder 2. A heat dissipation port 10 is opened on the top of the condensation cylinder 2. A water-repellent non-woven fabric 2 is arranged on the outside of the heat dissipation port 10. Part of the steam and water droplets generated inside the distillation furnace 1 are transported to the inside of the condensation cylinder 2 through the connecting pipe 7, and the outer condensation chamber 12 is filled with cold water to accelerate the cooling rate of the distilled water. The cooling rate is further accelerated through the heat dissipation port 10, and the water loss is avoided through the water-repellent non-woven fabric 2. A serpentine tube 14 is fixedly installed inside the condensation cylinder 2. The serpentine tube 14 passes through the inner cylinder 13 and is connected with the outer condensation chamber 12. The cold water inside the outer condensation chamber 12 can be transported through the serpentine tube 14, and it passes through the inner cylinder 13, thereby further improving the cooling of the distilled water.

[0026] A feeding pipe 5 is fixedly connected to the top of the distillation furnace 1, and a sealing cover 6 is threadedly connected to the top of the feeding pipe 5. A threaded groove 35 is provided on the outer side of the feeding pipe 5, and a threaded ring 36 is provided on the inner wall of the sealing cover 6. The threaded ring 36 is threadedly connected to the threaded groove 35. Through the cooperation of the threaded groove 35 and the threaded ring 36, the sealing cover 6 can be opened, and after the raw materials are added, it can be sealed. A balancing weight ball 20 is fixedly installed at one end of the sealing ring 19, and the balancing weight ball 20 is fixedly connected to a water-repellent non-woven fabric 21. A guide plate 22 is fixedly installed at one end of the sealing ring 19, and a guide groove 23 is provided on the top of the guide plate 22. The water-repellent non-woven fabric 21 can block water molecules to avoid waste of raw materials. A motor 4 is fixedly installed on the top of the distillation furnace 1, and a stirring roller 15 is rotatably connected to the inside of the distillation furnace 1. The output end of the motor 4 is fixedly connected to one end of the stirring roller 15, and a plurality of stirring paddles 16 are fixedly installed on the outer side of the stirring roller 15. The cooperation of the stirring roller 15 and the stirring paddle 16 can make the internal raw materials heated evenly. An activated carbon plate 27 is clamped at one end of the L-shaped pressure reducing tube 18, and a clamping block 25 is fixedly installed on the outer side of the L-shaped pressure reducing tube 18. One end of the activated carbon plate 27 is fixedly connected to a clamping block 26, and the clamping block 26 is clamped with the clamping block 1 25. The exhausted gas can be purified by the set activated carbon plate 27, and the activated carbon plate 27 can be replaced by the set clamping block 1 25 and the clamping block 26, so as to improve the purification effect. One end of the condensation cylinder 2 is fixedly connected to a drain pipe 8, and an electromagnetic valve 9 is fixedly installed on the outer side of the drain pipe 8. The distilled water inside the condensation cylinder 2 can be discharged through the set drain pipe 8. A control panel 3 is fixedly installed at one end of the distillation furnace 1, and the electromagnetic valve 9, the motor 4 and the electric heating wire 17 are all electrically connected to the control panel 3. The set control panel 3 can facilitate the user to operate the device.

[0027] In summary, when the vacuum distillation device is used, the sealing cover 6 is opened, the raw materials to be distilled are added into the distillation furnace 1 from the feeding pipe 5, and the electric heating wire 17 is started through the control panel 3 for heating. When the pressure inside the distillation furnace 1 continues to increase, the sealing shaft 32 will be pushed to slide through the T-shaped slider 31 and the T-shaped slide groove 29, thereby leaking the pressure reducing hole 33, allowing the gas to flow out from the inside, thereby reducing the pressure inside the distillation furnace 1. After the pressure returns to normal, the T-shaped slider 31 is reset by the two reset springs 30, thereby driving the sealing shaft 3 2 is reset, and the pressure reducing hole 33 is sealed, and the loss of water molecules is avoided by the water-repellent non-woven fabric 21, thereby avoiding the waste of raw materials. The water droplets formed by the steam and part of the steam enter the interior of the condensing cylinder 2 through the connecting pipe 7. The outer condensing chamber 12 is filled with cold water, which is beneficial to speed up the cooling speed of the water droplets and uncondensed steam. The serpentine tube 14 and the heat dissipation port 10 can dissipate the heat of the clean water with increased heat, so that the serpentine tube 14, the outer condensing chamber 12 and the heat dissipation port 10 are used to perform triple heat dissipation, thereby speeding up its cooling speed.

[0028] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A vacuum distillation apparatus, comprising a distillation furnace (1) and a condensation cylinder (2), characterized in that: The condensing cylinder (2) is located on one side of the distillation furnace (1) and cooperates with it. The inner wall of the distillation furnace (1) is provided with a plurality of electric heating wires (17). The top of the distillation furnace (1) is provided with a pressure reducing mechanism, and the pressure reducing mechanism includes an L-shaped pressure reducing tube (18), a sealing ring (19), a sealing shaft (32) and a connecting rod (24). The L-shaped pressure reducing tube (18) is located on the top of the distillation furnace (1) and is fixedly connected with it. The sealing ring (19) is located inside the L-shaped pressure reducing tube (18) and is fixedly connected with it. A pressure reducing hole (33) is opened inside the sealing ring (19). The sealing shaft (32) cooperates with the pressure reducing hole (33). The connecting rod (24) The invention is located inside the L-shaped pressure reducing tube (18) and is slidably connected thereto. A mounting plate (28) is fixedly installed inside the L-shaped pressure reducing tube (18). A T-shaped slide groove (29) is provided on the top of the mounting plate (28). Two return springs (30) are fixedly installed inside the T-shaped slide groove (29). A T-shaped slider (31) is slidably connected inside the T-shaped slide groove (29) and located between the two return springs (30). The T-shaped slider (31) is fixedly connected to the connecting rod (24). The T-shaped slider (31) is located between the two return springs (30) and is fixedly connected thereto. A water-repellent non-woven fabric (21) is provided at one end of the sealing ring (19).

2. A vacuum distillation apparatus according to claim 1, characterized in that: The top of the distillation furnace (1) is fixedly connected with a connecting pipe (7), the connecting pipe (7) is arranged to be inclined downward, the connecting pipe (7) is fixedly connected to the condensation cylinder (2), an outer condensation chamber (12) is arranged inside the condensation cylinder (2), an inner cylinder (13) is fixedly installed inside the condensation cylinder (2), a heat dissipation port (10) is opened at the top of the condensation cylinder (2), and a water-repellent non-woven fabric is arranged on the outer side of the heat dissipation port (10).

3. A vacuum distillation apparatus according to claim 2, characterized in that: A serpentine tube (14) is fixedly installed inside the condensation cylinder (2), and the serpentine tube (14) passes through the inner cylinder (13) and is connected to the outer condensation chamber (12).

4. A vacuum distillation apparatus according to claim 1, characterized in that: A feeding pipe (5) is fixedly connected to the top of the distillation furnace (1), and a sealing cover (6) is threadedly connected to the top of the feeding pipe (5). A threaded groove (35) is provided on the outer side of the feeding pipe (5), and a threaded ring (36) is provided on the inner wall of the sealing cover (6), and the threaded ring (36) is threadedly connected to the threaded groove (35).

5. A vacuum distillation apparatus according to claim 1, characterized in that: A weight ball (20) is fixedly mounted on one end of the sealing ring (19), and the weight ball (20) is fixedly connected to a water-repellent non-woven fabric (21). A guide plate (22) is fixedly mounted on one end of the sealing ring (19), and a guide groove (23) is provided on the top of the guide plate (22).

6. A vacuum distillation apparatus according to claim 1, characterized in that: A motor (4) is fixedly installed on the top of the distillation furnace (1), and a stirring roller (15) is rotatably connected inside the distillation furnace (1). The output end of the motor (4) is fixedly connected to one end of the stirring roller (15), and a plurality of stirring paddles (16) are fixedly installed on the outer side of the stirring roller (15).

7. A vacuum distillation apparatus according to claim 1, characterized in that: An activated carbon plate (27) is clamped to one end of the L-shaped pressure reducing pipe (18), a clamping block (25) is fixedly installed on the outside of the L-shaped pressure reducing pipe (18), a clamping block (26) is fixedly connected to one end of the activated carbon plate (27), and the clamping block (26) is clamped to the clamping block (25).

8. A vacuum distillation apparatus according to claim 1, characterized in that: One end of the condensation cylinder (2) is fixedly connected to a drainage pipe (8), and an electromagnetic valve (9) is fixedly installed on the outside of the drainage pipe (8).

9. A vacuum distillation apparatus according to claim 8, characterized in that: A control panel (3) is fixedly mounted on one end of the distillation furnace (1), and the solenoid valve (9), the motor (4) and the electric heating wire (17) are all electrically connected to the control panel (3).

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