Heat transfer enhancement sublimation device

Abstract

The invention discloses a heat transfer enhancement sublimation device, which comprises a conduction oil electric heater (1), a heat transfer enhancement sublimator (8), a crystallizer (10) and a gallic acid dissolving tank (17). The heat transfer enhancement sublimation device is characterized in that concentric circle circuit interlayers from big to small are arranged in the heat transfer enhancement sublimator (8); a pipeline is formed between each two circuits; a sublimator conduction oil inlet (7) is connected with the outlet of the conduction oil electric heater (1) through a conduction oil outlet pipe (4); a sublimator conduction oil outlet (9) is connected with the inlet of the conduction oil electric heater (1) through a conduction oil return pipe (2); the lower part of the gallic acid dissolving tank (17) is connected with the upper part of the heat transfer enhancement sublimator (8) through a gallic acid dissolving tank outlet pipe (16); and the material sublimation outlet of the heat transfer enhancement sublimator (8) is connected with the material crystallization inlet of the crystallizer (10). According to the heat transfer enhancement sublimation device disclosed by the invention, the material carbonization loss during the heating process can be reduced, and the product yield is increased.

Description

technical field [0001] The invention belongs to the field of chemical equipment, and specifically relates to a pyrogallic acid enhanced heat exchange sublimation device for sublimation. Background technique [0002] The existing pyrogallic acid sublimation production devices all adopt the method of single heating at the bottom of the sublimator. Its disadvantages are: [0003] 1. The single heating at the bottom has low conversion efficiency and high energy consumption, which increases the energy cost of the product; [0004] 2. The heating surface is small, the material is too thick, and the heat transfer of the material under vacuum is poor. It leads to long production cycle, serious material carbonization loss, and reduces the output and quality of products; [0005] 3. The thermal inertia of the single heating at the bottom is large, it is difficult to achieve optimal temperature control, and the heating and cooling process is lengthened, thus prolonging the productio...

AI Technical Summary

Problems solved by technology

[0003] 1. The single heating at the bottom has low conversion efficiency and high energy consumption, which increases the energy cost of the product;

[0004] 2. The heating surface is small, the material accumulation is too thick, and the material heat transfer is poor under vacuum conditions

It leads to long production cycle, serious material carbonization loss, and reduces the output and quality of products;

[0005] 3. The thermal inertia of the single heating at the bottom is large, it is difficult to achieve optimal temperature control, and the heating and cooling process is lengthened, thus prolonging the production cycle;

[0006] 4. Only heating the bottom of the equipment will easily cause the creep of the steel plate at the bottom of the equipment and accelerate the aging process of the equipment

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