A Vertical Tube Falling Film Absorption Reactor

Abstract

A vertical tube falling film absorption reactor, comprising an upper tube box, a lower tube box and a shell, the shell is arranged between the upper tube box and the lower tube box and is respectively sealed and connected with the upper tube box and the lower tube box. The upper and lower ends are respectively provided with tube sheets, and a vertical tube bundle is provided between the two tube sheets. A membrane distribution device is provided in the shell. The membrane distribution device includes an upper liquid distribution plate, a lower liquid distribution plate and an upper liquid distribution plate. The upper cylindrical overflow plate, the lower liquid distribution plate tube hole on the lower liquid distribution plate and the heat exchange tube passing through the lower liquid distribution plate tube hole are provided with a film cloth ring gap, and the lower liquid distribution plate tube hole is provided with an annular gap. There are centering protrusions for centering the heat exchange tubes, and spiral grooves are arranged on the outer walls of the heat exchange tubes. The invention adopts a more reasonable film distributing device, so as to achieve the purpose of uniform distribution of liquid film and stable film formation, avoid dry wall phenomenon, and greatly improve the efficiency of heat and mass transfer.

Description

technical field [0001] The invention relates to an absorption reaction device, in particular to a vertical tube falling film absorption reactor. Background technique [0002] As a high-efficiency energy-saving equipment, absorption reactor is widely used in the production of chemical industry, refrigeration, waste heat recovery and other industries. In the current market, the most common absorption reactors are mainly horizontal tube falling film absorption reactors and vertical tube falling film absorption reactors (hereinafter referred to as vertical tube falling film absorption reactors). [0003] The tube bundle in the vertical tube falling film absorption reactor is a vertical heat exchange tube, and the cooling medium is passed through the heat exchange tube, and the solution outside the heat exchange tube is evenly distributed on the outer wall of the heat exchange tube through the film distribution device, and the solution is in the form of a falling film in the exch...

AI Technical Summary

Problems solved by technology

Uneven cloth film will affect the absorption of gas in the shell side and reduce the heat and mass transfer efficiency; when the dry wall phenomenon is serious, it will cause damage to the heat exchange tube, eventually lead to equipment shutdown, and even cause safety accidents, which will bring a lot of losses to the enterprise Economic losses

Images