Falling-film material distributor and falling-film evaporation heater with falling-film material distributor

Abstract

The invention discloses a falling film material distributor. The falling film material distributor is characterized in comprising a bottom plate and a cofferdam which are fixed together; the cofferdamis fixed to a circle of the bottom plate and located on the upper portion of the bottom plate, a large number of upward balance pipes are fixed to the bottom plate, inner holes of the balance pipes are vertically communicated with through holes in the bottom plate, a large number of distribution holes are further formed in gaps, located in the balance pipes, of the bottom plate, and a plurality of downward positioning pins are fixed to the bottom plate. The falling-film material distributor has the beneficial effects that a disc type perforated distributor is adopted, the plurality of distribution holes are formed in the bottom disc, and the cofferdam is arranged at the periphery of the disc, so that materials can be maintained at a certain height, the distribution of the materials is facilitated, and the problem of uniform distribution of the materials in a heat exchange tube is solved. The falling film material distributor does not need very high machining precision and mounting precision, and is convenient to mount and maintain.

Description

technical field [0001] The invention relates to the technical field of chemical machinery, in particular to a falling film material distributor and a falling film evaporation heater therein. Background technique [0002] Falling film evaporation is to add the feed liquid from the upper tube box of the heating chamber of the falling film evaporator, and distribute it evenly into each heat exchange tube through the liquid distribution and film forming device. flow up and down. During the flow process, it is heated and vaporized by the shell-side heating medium, and the generated steam and liquid phase enter the separation chamber of the evaporator together, and the vapor and liquid are fully separated to complete the evaporation process. The key component of the falling film evaporator is the material distributor, and the design of the material distributor has a great influence on the performance of the falling film evaporator. The invention solves the problem of uneven mate...

AI Technical Summary

Problems solved by technology

There are many forms of distributors. At present, overflow distributors, plug distributors, and cone distributors are commonly used. Overflow distributors have higher requirements for processing accuracy and installation, and plug distributors have greater flow resistance. , easy to block, inconvenient to install and maintain, suitable for cleaning materials

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