A vacuum distillation device

Abstract

The utility model relates to the technical field of distillation equipment, specifically a reduced-pressure vacuum distillation device, including a workbench, a vacuum distillation container, a sealed collection hood and a condenser. The top of the vacuum distillation container is connected to the sealed collection hood through the condenser, and is connected to a reduced-pressure regulator; the condenser is covered with a semiconductor refrigerator. The utility model forms a reduced-pressure vacuum distillation system through a vacuum distillation container, a sealed collection hood and a condenser. The vacuum distillation container serves as the main distillation space and can withstand work under reduced-pressure conditions. The sealed collection hood ensures the sealing of the distillation process and prevents leakage of the distilled material. The condenser is used to condense the distilled steam into liquid for easy collection. The semiconductor refrigerator on the outside of the condenser can quickly and effectively reduce the temperature of the condenser, improve the condensation efficiency, and ensure that the distilled material can be fully condensed. Through the cooperation of the reduced-pressure cylinder and the reciprocating cylinder, the internal pressure of the distillation container can be accurately adjusted.

Description

Technical Field

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

[0002] The vacuum distillation device is mainly used to distill and separate substances under reduced pressure. By reducing the pressure in the system, high-boiling point substances can be evaporated at a lower temperature, thereby achieving separation and purification of complex mixtures. This device is particularly suitable for compounds that have been thermally decomposed, oxidized or polymerized before reaching the boiling point during atmospheric distillation. Through vacuum distillation, the decomposition of substances at high temperatures can be avoided to ensure the quality and activity of the product. Today's vacuum distillation devices are too simple in structure, have poor vacuum stability, and poor condensation effect, and cannot meet the needs of use. Utility Model Content

[0003] The utility model aims to provide a reduced pressure vacuum distillation device to solve the problem that the reduced pressure vacuum distillation device mentioned in the background technology is too simple in structure, poor in reduced pressure stability, poor in condensation effect and cannot meet the use requirements.

[0004] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0005] A reduced pressure vacuum distillation device comprises a workbench for reduced pressure vacuum distillation, a vacuum distillation container and a sealed collection cover are installed on the top of the workbench, the top of the vacuum distillation container is connected to the top of the sealed collection cover through a condenser, and a reduced pressure regulator is also connected to the vacuum distillation container;

[0006] The condenser tube is arranged to be tilted downward, and a semiconductor refrigerator is provided on the outside;

[0007] The pressure reducing regulator includes a pressure reducing cylinder and a reciprocating cylinder installed on the pressure reducing cylinder. A piston that is adapted to and slidably fits with the inner diameter of the pressure reducing cylinder is installed at the bottom of the piston rod of the reciprocating cylinder. The bottom of the pressure reducing cylinder is inserted into a vacuum distillation container and is coaxially connected with a vacuum pressure reducing pipe. An air inlet pipe is installed at the bottom of the outer wall of the pressure reducing cylinder. Both the vacuum pressure reducing pipe and the air inlet pipe are installed with a one-way valve.

[0008] Preferably, the vacuum distillation container is in a hollow spherical shape and is made of transparent tempered glass with a thickness of 1-3 mm.

[0009] Preferably, the top surface of the workbench is provided with a groove matching the size of the bottom surface of the vacuum distillation container, and an electric heating base is installed in the groove.

[0010] Preferably, a sealing ring seat is embedded and installed on the top surface of the sealed collecting hood, and the condenser tube is plug-fitted into the sealing ring seat.

[0011] Preferably, a collection container is provided in the sealed collection cover, and a groove which is adapted to the size of the collection container and is plug-fitted therein is formed on the top surface of the workbench.

[0012] Preferably, the sealed collecting cover is made of transparent tempered glass with a thickness of 1-3 mm, and the outer wall is provided with an anti-slip cover with a width of 1-1.5 cm.

[0013] Preferably, a threaded connection seat threadably connected to the workbench is provided at the bottom of the sealed collecting cover.

[0014] Compared with the prior art, the beneficial effects of the utility model are:

[0015] 1. In this vacuum distillation device, a complete vacuum distillation system is formed by the vacuum distillation container, the sealed collection cover and the condenser. The vacuum distillation container, as the main distillation space, can withstand the work under the reduced pressure state; the sealed collection cover ensures the sealing of the distillation process and prevents the leakage of the distilled material; the condenser is used to condense the distilled steam into liquid for easy collection. The semiconductor refrigerator set on the outside of the condenser can quickly and effectively reduce the temperature of the condenser, improve the condensation efficiency, and ensure that the distilled material can be fully condensed. Through the cooperation of the vacuum cylinder and the reciprocating cylinder, the internal pressure of the distillation container is accurately adjusted. The piston of the reciprocating cylinder slides in the vacuum cylinder, and the pressure is adjusted by changing the volume in the vacuum cylinder. The operation is simple. The vacuum pressure reduction pipe and the air inlet pipe are both equipped with a one-way valve to ensure the unidirectional flow of the gas, prevent gas backflow and leakage, and further improve the safety and stability of the device.

[0016] 2. In this reduced pressure vacuum distillation device, the top surface of the workbench is provided with a groove that matches the size of the bottom surface of the vacuum distillation container. An electric heating base is installed in the groove, so that the vacuum distillation container can be stably placed on the workbench, and the electric heating base can provide it with a uniform heat source to ensure the smooth progress of the distillation process.

[0017] 3. In the reduced pressure vacuum distillation device, a collection container for collecting condensed liquid is arranged in the sealed collection cover, and a groove which is adapted to the size of the collection container and plug-in fits the top surface of the workbench is provided, so that the collection container can be stably placed on the workbench, facilitating the collection and transfer of the liquid. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, further detailed explanation is provided, but the accompanying drawings do not constitute a limitation to the present invention.

[0019] Figure 1 It is a schematic diagram of the structure of the utility model;

[0020] Figure 2 It is a schematic diagram of the cross-sectional structure of the utility model;

[0021] Figure 3 It is a schematic diagram of the cross-sectional structure of the pressure reducing regulator of the utility model.

[0022] The meaning of the symbols in the figure:

[0023] 10. Workbench; 11. Electric heating base;

[0024] 20. Vacuum distillation container;

[0025] 30. Condenser tube; 31. Semiconductor refrigerator;

[0026] 40. Sealed collecting cover; 41. Sealing ring seat; 42. Collecting container; 43. Threaded connection seat;

[0027] 50. Pressure reducing regulator; 51. Pressure reducing cylinder; 52. Reciprocating cylinder; 53. Piston rod; 54. Piston; 55. Air exhaust pressure reducing pipe; 56. Air inlet pipe; 57. One-way valve. DETAILED DESCRIPTION

[0028] The following will combine the embodiments of the utility model and the drawings of the specification to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0029] In the description of the present invention, it should be understood that the terms "center", "vertical", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicating orientations or positional relationships are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0030] A reduced pressure vacuum distillation apparatus, such as Figure 1-Figure 3 As shown, it includes a workbench 10 for reduced pressure vacuum distillation, a vacuum distillation container 20 and a sealed collection cover 40 are installed on the top of the workbench 10, the top of the vacuum distillation container 20 is connected to the top of the sealed collection cover 40 through a condenser 30, and a reduced pressure regulator 50 is also connected to the vacuum distillation container 20; the condenser 30 is arranged to be inclined downward, and a semiconductor refrigerator 31 is sleeved on the outside; the reduced pressure regulator 50 includes a reduced pressure cylinder 51 and a reciprocating cylinder 52 installed on the reduced pressure cylinder 51, a piston 54 that is adapted to the inner diameter size of the reduced pressure cylinder 51 and slidably matched is installed at the bottom of the piston rod 53 of the reciprocating cylinder 52, the bottom of the reduced pressure cylinder 51 is inserted into the vacuum distillation container 20 and is coaxially connected with a vacuum exhaust pipe 55, an air inlet pipe 56 is installed at the bottom of the outer wall of the reduced pressure cylinder 51, and a one-way valve 57 is installed in the vacuum exhaust pipe 55 and the air inlet pipe 56, and a complete reduced pressure vacuum distillation system is formed by the arranged vacuum distillation container 20, the sealed collection cover 40 and the condenser 30. The vacuum distillation container 20 is the main distillation space and can withstand work under reduced pressure; the sealed collection cover 40 ensures the sealing of the distillation process and prevents leakage of the distilled material; the condenser 30 is used to condense the distilled steam into liquid for easy collection. The semiconductor refrigerator 31 set on the outside of the condenser 30 can quickly and effectively reduce the temperature of the condenser, improve the condensation efficiency, and ensure that the distilled material can be fully condensed. Through the cooperation of the decompression cylinder and the reciprocating cylinder, the internal pressure of the distillation container is accurately adjusted. The piston 54 of the reciprocating cylinder 52 slides in the decompression cylinder 51, and the pressure is adjusted by changing the volume in the decompression cylinder 51. The operation is simple. The vacuum decompression pipe 55 and the air inlet pipe 56 are both equipped with a one-way valve 57 to ensure the unidirectionality of the gas flow, prevent gas backflow and leakage, and further improve the safety and stability of the device.

[0031] It is worth noting that the vacuum distillation container 20 is in the shape of a hollow sphere and is made of 1-3 mm thick transparent tempered glass, so that the container can withstand pressure changes in a vacuum environment while maintaining sufficient transparency to facilitate observation of the distillation process.

[0032] Furthermore, the top surface of the workbench 10 is provided with a groove that matches the size of the bottom surface of the vacuum distillation container 20, and an electric heating base 11 is installed in the groove, so that the vacuum distillation container 20 can be stably placed on the workbench, and the electric heating base 11 can provide it with a uniform heat source to ensure the smooth progress of the distillation process.

[0033] Among them, a sealing ring seat 41 is embedded in the top surface of the sealing collection cover 40, and the condenser 30 and the sealing ring seat 41 are plugged in and matched, which not only ensures the sealing, but also makes the installation and disassembly of the condenser easy, thereby improving the maintainability of the equipment.

[0034] Specifically, a collection container 42 for collecting condensed liquid is provided in the sealed collection cover 40, and a groove which is adapted to the size of the collection container 42 and is plugged in and fits with the top surface of the workbench 10, so that the collection container can be stably placed on the workbench, facilitating the collection and transfer of liquid.

[0035] It is worth noting that the sealed collection cover 40 is made of transparent tempered glass with a thickness of 1-3 mm. The outer wall is provided with an anti-slip cover with a width of 1-1.5 cm, so that the operator can clearly observe the liquid collection in the collection cover, and the anti-slip cover ensures the anti-slip effect.

[0036] In addition, a threaded connection seat 43 threadably connected to the workbench 10 is provided at the bottom of the sealed collecting cover 40, so that the collecting cover can be firmly fixed on the workbench, and the disassembly and cleaning of the collecting cover is also convenient.

[0037] The working principle of the reduced pressure vacuum distillation device is as follows: the operator puts the substance to be distilled into the vacuum distillation container 20, inserts the bottom of the reduced pressure cylinder 51 into the vacuum distillation container 20, connects the vacuum reduction pipe 55, starts the reciprocating cylinder 52, and makes the piston 54 reciprocate in the reduced pressure cylinder 51. The pressure in the vacuum distillation container 20 is gradually reduced by changing the volume in the reduced pressure cylinder 51. During the decompression process, a pressure gauge can be set inside to observe the internal pressure to ensure that the pressure is controlled within the required range. When the pressure in the vacuum distillation container 20 reaches the preset value, the distilled substance is heated to generate steam. The steam passes through the condenser 30 and is quickly condensed into liquid under the action of the semiconductor refrigerator 31. The condensed liquid flows into the collection device for subsequent processing.

[0038] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only preferred examples of the utility model and are not used to limit the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection of the utility model is defined by the attached claims and their equivalents.

Claims

1. A reduced pressure vacuum distillation apparatus, comprising a workbench (10) for reduced pressure vacuum distillation, characterized in that: A vacuum distillation container (20) and a sealed collection cover (40) are installed on the top of the workbench (10); the top of the vacuum distillation container (20) is connected to the top of the sealed collection cover (40) via a condenser (30); and a pressure reducing regulator (50) is also connected to the vacuum distillation container (20); The condenser tube (30) is arranged to be inclined downward, and is covered with a semiconductor refrigerator (31) on the outside; The pressure reducing regulator (50) comprises a pressure reducing cylinder (51) and a reciprocating cylinder (52) mounted on the pressure reducing cylinder (51); a piston (54) matching and slidingly fitting the inner diameter of the pressure reducing cylinder (51) is mounted at the bottom of the piston rod (53) of the reciprocating cylinder (52); the bottom of the pressure reducing cylinder (51) is inserted into a vacuum distillation container (20) and is coaxially connected with a vacuum pressure reducing pipe (55); an air intake pipe (56) is mounted at the bottom of the outer wall of the pressure reducing cylinder (51); and a one-way valve (57) is mounted in both the vacuum pressure reducing pipe (55) and the air intake pipe (56).

2. The reduced pressure vacuum distillation apparatus according to claim 1, characterized in that: The vacuum distillation container (20) is in the shape of a hollow sphere and is made of a transparent tempered glass material with a thickness of 1-3 mm.

3. The reduced pressure vacuum distillation apparatus according to claim 2, characterized in that: The top surface of the workbench (10) is provided with a groove matching the size of the bottom surface of the vacuum distillation container (20), and an electric heating base (11) is installed in the groove.

4. The reduced pressure vacuum distillation apparatus according to claim 1, characterized in that: A sealing ring seat (41) is embedded and installed on the top surface of the sealing collection cover (40), and the condenser tube (30) is plug-fitted into the sealing ring seat (41).

5. The reduced pressure vacuum distillation apparatus according to claim 1, characterized in that: A collection container (42) is arranged in the sealed collection cover (40), and a groove which is adapted to the size of the collection container (42) and can be plugged in and matched is provided on the top surface of the workbench (10).

6. The reduced pressure vacuum distillation apparatus according to claim 1, characterized in that: The sealed collecting cover (40) is made of transparent tempered glass with a thickness of 1-3 mm, and an anti-slip cover is arranged on the outer wall, and the width of the anti-slip cover is 1-1.5 cm.

7. The reduced pressure vacuum distillation apparatus according to claim 1, characterized in that: A threaded connection seat (43) threadably connected to the workbench (10) is provided at the bottom of the sealed collection cover (40).

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