Liquid distributing structure of distillation equipment

Abstract

The invention discloses a liquid distributing structure of distillation equipment, and the liquid distributing structure is used in the distillation equipment provided with a shell and a heat exchangetube array. The liquid distributing structure comprises a liquid spraying cavity and liquid separating devices, wherein the base plate of the liquid spraying cavity is a perforated plate in which a plurality of liquid separating holes are formed, and the liquid separating holes and the heat exchange tube array are arranged correspondingly; a liquid inlet is formed in the top of the liquid spraying cavity; each liquid separating device comprises a liquid separating sheet support and a liquid separating sheet; and each liquid separating sheet is fixed inside the corresponding heat exchange tubethrough the corresponding liquid separating sheet support, each liquid separating sheet and the axis of the corresponding heat exchange tube are arranged vertically or at an included angle of greaterthan 45 degrees, and a gap is formed between the edge of each liquid separating sheet and the inner wall of the corresponding heat exchange tube. According to the liquid distributing structure, liquid can be distributed onto each heat exchange tube uniformly, due to the fact that the liquid is distributed uniformly, the evaporation of the liquid is facilitated, the liquid is prevented from beingheated non-uniformly to cause liquid scaling of inside the heat exchange tubes, and moreover, the liquid distributing structure also has the advantages of being simple, easy in installation, convenient to use and unlikely to block.

Description

technical field [0001] The invention relates to the technical field of distillation equipment, in particular to a liquid distribution structure of distillation equipment. Background technique [0002] Distillation is a thermodynamic separation process. It utilizes the different boiling points of the components in the mixed liquid or liquid-solid system to evaporate the low-boiling components and then condense them to separate the entire components. There are two types of evaporation and condensation. A union of unit operations. Compared with other separation methods, such as extraction, filtration and crystallization, its advantage is that it does not need to use other solvents other than the system components, so as to ensure that no new impurities will be introduced. [0003] The liquid distribution technology of the existing distillation or concentration equipment is relatively backward. For example, in the liquid distribution structure of the falling film evaporator, th...

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Problems solved by technology

[0006] In view of this, the present invention provides a liquid distribution structure of distillation equipment to solve the problems mentioned in the background technology section above, so that the liquid can be evenly distributed to each heat exchange tube, and because the liquid is evenly distributed, there is It is beneficial to the evaporation of the liquid, prevents the liquid from scaling in the heat exchange tube caused by uneven heating, and also has the advantages of simple structure, easy installation, convenient use, and not easy to block

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