Heat-pipe wiped-film short-distance distiller

Abstract

A heat-pipe wiped-film short-distance distiller is novel liquid-liquid separation equipment, which is composed of a heat pipe, a feed liquid distributor, a wiped-film device, an evaporating surface, a condensing surface, an electric heating element, a temperature control unit and the like. The heat-pipe wiped-film short-range distiller is characterized in that the outer surface of the heat generation segment at the upper part of the heat pipe is taken as the evaporating surface for heating feed liquid to be separated; and an automatic-control electrical heating system is provided so that a heating surface can freely set heating temperature according to the need and can heat the feed liquid to be separated without coking at a constant and uniform temperature. The feed liquid forms a uniform liquid film and is fully stirred by scraping and wiping through the wiped-film device, thus strengthening the heat and mass transfer process and realizing high effective separation of light components and heavy components. The heat-pipe wiped-film short-distance distiller is particularly suitable for separation of mixed liquid with high molecular weight, high boiling point, high viscosity and thermal sensitivity; and the distiller can be widely applied to petrochemical industry, biochemical industry, fine chemical industry, commodity chemicals, pharmaceutical industry, flavors and fragrances industry, pesticides industry, plastics industry and the like.

Description

technical field [0001] The invention relates to a short-distance distillation equipment, in particular to a heating surface that can set the heating temperature arbitrarily according to the needs, and can heat the material liquid to be separated at a constant temperature and uniform temperature, so that the heating surface does not coke and realizes high-efficiency separation. A heat pipe wiped film short path distiller. Background technique [0002] Short-path distillation technology is a special liquid-liquid high-tech separation technology. The short-path still is the key equipment in short-path distillation technology. It breaks through the principle of conventional distillation to separate substances by boiling point difference. The component molecules are easier to be heated and evaporated than the heavy component molecules. After escaping the liquid film, they condense rapidly on the condensation surface after a short distance, which overcomes the constraints of the v...

AI Technical Summary

Problems solved by technology

They all use the sensible heat of the heat medium to heat the material liquid, and a circulation pump must be used to circulate the heat medium, which increases power consumption and unreliable factors. In addition, there must be a temperature difference between the inlet and outlet of the heat medium, resulting in The temperature of the heating surface is uneven, which affects the separation efficiency and product quality, and may cause coking due to local overheating.

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