Liquid distribution mixing device used for plate shell type heat exchanger

Abstract

A liquid distribution mixing device used for a plate shell type heat exchanger comprises a liquid distributor and an installation structure of the liquid distributor. The liquid distributor is composed of a distribution pipe, built-in nozzles and a liquid inlet connection pipe. The distribution pipe communicates with the liquid inlet connection pipe and is a hollow connection pipe with symmetrical discharging holes. The built-in nozzles are installed in the discharging holes. Outlets of the built-in nozzles are long-seam-shaped open holes, and the end surfaces of the built-in nozzles do not exceed the outer wall surface of the distribution pipe. The installation structure of the liquid distributor comprises two side plates and an arched top plate connected with the two side plates. Distribution pipe installation holes are formed in the two side plates. A liquid inlet connection pipe installation hole is formed in the center of the arched top plate. Deflectors are adjustably arranged on the periphery of the liquid inlet connection pipe installation hole with the liquid inlet connection pipe installation hole being the center. A cavity enclosed by the deflectors is a diversion trench. The distribution pipe is installed in the distribution pipe installation holes. According to the liquid distribution mixing device used for the plate shell type heat exchanger, the problem that plate shell type heat exchanger liquid distribution devices cannot conduct spraying and sufficient mixing is solved.

Description

technical field [0001] The invention belongs to the technical field of heat exchanger design and manufacture, and in particular relates to a liquid distribution and mixing device for a plate-shell heat exchanger. Background technique [0002] Plate heat exchanger is a high-efficiency and energy-saving heat exchanger, which is widely used in petroleum, petrochemical and other large-scale industrial occasions. In recent years, it has developed extremely rapidly. The liquid distribution device is a component in the plate heat exchanger, and its function is to spray liquid into another gaseous fluid to make it evenly distributed. The structure of the existing liquid distribution device is too simple, the sprayed fluid is in strands, and the effect of atomization cannot be achieved, so the effect of uniform dispersion cannot be achieved; in addition, since the liquid inlet connection is connected to the expansion joint, the thickness of the expansion joint is relatively thick Th...

AI Technical Summary

Problems solved by technology

[0003] The invention provides a liquid distribution and mixing device for a plate-shell heat exchanger, through the atomization of the long slit nozzle and the guidance and acceleration of the diversion groove composed of the deflector on the lower head of the shell side, the flow rate of the two media is optimized. Effective mixing problem while solving the problem of easy clogging of conventional hole nozzles

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