Climbing film type multi-effect water distillator

Abstract

The invention discloses a climbing film type multi-effect water distillator, and belongs to the field of distilled water equipment. The multi-effect water distillator comprises a frame; the frame is provided with evaporators connected sequentially through a raw water pipeline; a condensing device is arranged above the evaporators; the condensing device and the evaporators are connected with a pre-heater through a pure steam pipeline; the raw water inlet of the evaporator is connected with the pre-heater; the inner part of the evaporator is divided into four sections, namely a steam-water separation section, a reflux defoaming section, an evaporation section and a water storage chamber sequentially from top to bottom; evaporating pipes arranged longitudinally are arranged in the evaporation section; and the side walls of the evaporators are provided with through holes. In the multi-effect water distillator, the water quantity in the evaporating pipes of the evaporators is completely the same, and the evaporation quantity in the evaporating pipes is also the same in the heat exchange process, so the efficiency of the evaporating pipes is consistent; the water distribution structuresare from bottom to top, so that complete and uniform water distribution of the evaporating pipes is realized; and the multi-effect water distillator is used for preparing the distilled water by usingthe climbing film principle, so that uniform water distribution and full steam-water separation are ensured, and the medical distilled water with high efficiency and good quality is prepared.

Description

technical field [0001] The invention belongs to the field of distilled water equipment, and relates to a multi-effect distilled water equipment, in particular to a rising film type multi-effect distilled water machine. Background technique [0002] At present, the evaporation methods of domestic independent or imported multi-effect distilled water machines are all falling film. Falling film evaporation is a kind of surface evaporation in which the material liquid flows through the heating surface in the form of a liquid film. Unlike ordinary evaporation, there is no violent boiling of the material liquid during the falling film evaporation process. In the heat transfer process of falling film evaporation, the heat flux remains constant along the thickness direction of the liquid film, and the heat is released in the form of latent heat from the heating surface through the liquid film until the free surface. Evaporation generally only occurs on the surface of the liquid film...

AI Technical Summary

Problems solved by technology

[0005] In the existing distilled water models, each evaporator needs to be equipped with a preheater and condenser separately, which will increase steam consumption and energy consumption during the steam heating and condensation process, and will also make the overall equipment The structure is too large

Images