Falling film evaporator
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How is the distributor of a falling film evaporator designed?
1# chih6511 can be designed based on the structure of the liquid distributor; Tianjin University has patented products for this.
For alkali evaporation, a falling film evaporator was used, with the distributor design being determined by the requirements specified in the process. I don’t think the distributor is that important; as long as it can distribute the fluid evenly, that’s sufficient. What’s really crucial is the liquid distribution tube that surrounds the heat exchange tubes.
Regarding falling film evaporation, I recommend consulting the Department of Process Equipment and Control Engineering at Hebei University of Technology; they have great expertise in this field, and they also possess their own patented technologies for the liquid distribution devices used in falling film evaporators
I have worked on the liquid distribution tube, but what is the structure of the distributor – a cone sleeve? If a distributor isn’t used, will the performance be very poor?
Whether the material can be evenly coated directly affects the evaporation efficiency. The film formers/distributors of tubular and plate evaporators have different structures. Generally speaking, fully welded plate evaporators are easier to coat with a film, and they also yield the best results. You can consult companies such as Lanzhou Hengda Petrochemical Machinery Company and Lanzhou Petroleum Machinery Research Institute; they are leaders in China in terms of evaporation technology and engineering experience. For reference only.
It is generally referred to as a distributor; see http://bbs.hcbbs.com/viewthread.php?tid=135618. The replies in several posts above are all the same – they’re not here to post nonsense, right?
I’ll create this design! ! Bro, tell you about my design! Just install a spiral liquid distribution tube at each end of the heat exchange tube, and that’s it! (I was working on vertical falling-film evaporators at that time; a total of 2 units of this type were designed, all of them vertical. I’m not sure if there are any horizontal versions either!) ）