Liquid film distributor in vertical evaporation tube

Abstract

The invention discloses a liquid film distributor in a vertical evaporation tube. The liquid membrane distributor comprises a bearing spring, an upper film distributor, a siphon, a connecting rod, spraying pipes, a lower film distributor and a suspension spring, wherein the upper end of the bearing spring is fixedly connected on an inner wall surface of a falling film tube, the lower end of the bearing spring is fixedly connected with the top of the upper film distributor, the bottom of the upper film distributor is fixedly connected with the top end of the connecting rod, the bottom end of the connecting rod is fixedly connected with the top of the lower film distributor, the siphon is arranged on a bottom surface of a liquid receiving basin in the upper film distributor, a siphon outlet is connected with inlets of the spraying pipes arranged conically, outlets of the spraying pipes are arranged above a liquid storage surface of the lower film distributor, and the top of the suspension spring is fixedly connected with a film distribution whole inner wall surface of the lower film distributor. A liquid film is distributed evenly by utilizing the liquid distributor which reciprocates to distribute liquid, falling film dry tube, channeling or plume phenomena are effectively prevented, and an effective heat transfer area is strengthened.

Description

technical field [0001] The invention belongs to the technical field of heat exchange evaporation equipment, and relates to a liquid film distributor in a vertical evaporation tube, which can be applied to an evaporator of falling film in the tube. Background technique [0002] At present, in-tube falling film evaporators are widely used in heat exchange equipment for processes involving liquid evaporation processes. In this type of heat exchange equipment, the liquid is transported by the pump to the top of the falling film tube, and through the film distributor on the top, the liquid flows down along the inner wall of the falling film tube in the form of a liquid film in the tube, and is connected with the outside of the tube. The heat exchange medium realizes heat exchange, and the solution in the tube realizes the evaporation process. Because the falling film evaporation method has the advantages of short heating time and small heat transfer temperature difference loss, ...

AI Technical Summary

Problems solved by technology

[0004] In order to overcome the uneven distribution of the liquid film in the flow process in the existing vertical evaporator tube, which leads to the phenomenon of dry surface (no liquid film wall), channel flow or stream flow, etc., and the sediment adsorbed on the surface of the falling film tube reduces the heat transfer. Quality and performance, and the gasification core adsorbed by the falling film tube is not easy to detach.

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