Short path molecular distillation equipment manufacturers provide you with new molecular distillation equipment, short path molecular distillation equipment prices, short path molecular equipment operation methods
The molecular distillation equipment manufacturers will introduce the working principle of the molecular distillation equipment, the characteristics and applications of the molecular distillation equipment, and what precautions should be taken before the molecular distillation equipment runs.
Molecular distillation is a separation technology that utilizes the difference in molecular free path when lightly reconstituted molecules in the liquid phase escape from the liquid phase main body. In a high vacuum environment, the average free path of vapor molecules is greater than that between the evaporation surface and the condensation surface. The distance between them can be used to separate the liquid mixture by using the difference in evaporation rate of each component in the feed liquid. At a certain temperature, the lower the pressure, the greater the mean free path of the gas molecules. When the pressure of the evaporation space is very low, and the condensation surface is close to the evaporation surface, and the vertical distance between them is smaller than the average free path of the gas molecules, the vapor molecules vaporized from the evaporation surface can directly reach the condensation surface without colliding with other molecules and condense. . The basic conditions for achieving molecular distillation are: the molecular free path for light component molecules to escape is equal to the distance between the heating surface and the condensing surface, and it can correctly reach the built-in condenser to achieve capture; and the molecular free path for molecular components to escape It should be less than the distance between the heating surface and the condensation surface, so that it does not reach the built-in condenser, and the built-in condenser only captures the molecules of the light components, so as to realize the separation of light components.
The corresponding equipment for molecular distillation is short-path distillation equipment. Its evaporation efficiency is very high, which can reduce the retention time and has a small time delay. The system is composed of high borosilicate glass 3.3, 316L stainless steel, and PTFE, so it has excellent protection. Corrosion ability; the main body is made of high borosilicate glass 3.3, and the operation process of the entire process can be well observed.
The built-in condenser and the main evaporator of the molecular distillation equipment are designed as a whole and integrated production, which reduces the installation difficulty, reduces the connection interface, increases the vacuum tightness, and reduces the possibility of air leakage due to the interface seal. The ring is linearly sealed, and the horseshoe clip is fastened for easy installation and disassembly. Both are fixed in the movable frame, with a small footprint and easy movement.
When starting work, you must keep the machine running from low to high speed. At the same time, you must keep the machine stopped rotating before shutting down. After each use of the molecular distillation equipment, it should be cleaned in time to keep the machine clean and clean, so as to better improve the performance of the machine. Therefore, regular cleaning of the seal ring is a necessary maintenance measure. It must be paid attention during the use. Moisture-proof and waterproof performance, so as not to cause conduction phenomenon.
When disassembling the flange screw of a molecular distillation device, the corner should be removed or tightened, and it should be carried out in accordance with the steps, especially when disassembling, and confirm that there is no liquid before removing, so as to prevent the liquid from spraying out, and pay attention that no one is under the nozzle. When the evaporator is overhauled, the materials should be cleaned, washed with hot water, and then washed out with cold water. At the same time, it is necessary to check whether the relevant valve can be shut down, or add a blind plate to prevent material from escaping during the maintenance process and hurting people.
The molecular distillation device is equipped with multiple temperature measurement points, which can determine the position of the sensitive plate, determine whether the operation of the tower is stable, and learn the essentials of operation; learn the control and adjustment of the pressure and reflux ratio, can be detected online; and observe the raw materials by heating, which can achieve a variety Feed heat condition feed.
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