Integrated lifting film evaporation device

Abstract

The invention relates to an integrated lifting film evaporation device which comprises a feed cavity with a feed valve, wherein a first heat conduction oil cavity with multiple evaporation tube bundles inside is formed above the feed cavity; the first heat conduction oil cavity is externally wrapped with an inverted material cavity and positioned by a support plate; an upper tube plate and a lower tube plate are fixed at the two ends of each evaporation tube bundle respectively; a corresponding circular plate is arranged on the top of the upper tube plate through a bracket; multiple baffle plates are fixed in the first heat conduction oil cavity through a distance rod; a discharge valve is arranged on one side of the material cavity, and a waste gas cavity and a gas-phase outlet are formed in the top; herringbone gas guide grids are uniformly distributed between the upper tube plate and the circular plate; a jacket is arranged around the evaporation tube bundles in the first heat conduction oil cavities; a positioning plate is arranged between the jacket and the inner tube wall of the first heat conduction oil cavity; a thread is arranged on the outer tube wall of the first heat conduction oil cavity wrapped by the material cavity; and the material cavity is externally wrapped by a second heat conduction oil cavity. The integrated lifting film evaporation device provided by the invention has the advantages of simple structure, efficient material evaporation and high recovery rate, remarkably reduces unit energy consumption and increases the economic benefits of an enterprise.

Description

technical field [0001] The invention relates to a device for liquid-liquid separation using an evaporation method, in particular to an integrated lifting film evaporation device. Background technique [0002] Rising film and falling film evaporators are used in a wide range of applications in the chemical industry and each has its own advantages. Among them, the rising film evaporator has the advantages of small footprint, low cost, strong operation controllability, and compact structure; the falling film evaporator has the advantages of high heat transfer coefficient, good thermal conductivity, easy adjustment and control, convenient and reliable, etc. However, in the long-term industrial practice, their respective shortcomings are also exposed one by one. For example, both of them have the disadvantage of too short material evaporation time in the process, which greatly affects the evaporation rate of the finished product, which directly causes the low material recovery ra...

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Problems solved by technology

However, in the long-term industrial practice, their respective shortcomings are also exposed one by one. For example, both of them have the disadvantage of too short material evaporation time in the process, which greatly affects the evaporation rate of the finished product, which directly causes the low material recovery rate. , reducing the economic benefits of the enterprise

In addition, in the existing falling film evaporation process, when the material descends and evaporates along the tube wall, the uneven distribution and poor continuity of the film on the tube wall surface also affect the evaporation effect.

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