The detailed classification of nozzles of heat and mass transfer apparatuses is proposed. Examples of the constructive design of new types of domestic and foreign disordered and ordered nozzles are given. Nozzle apparatuses remain one of the most spread type of equipment for mass transfer. This is first of all due to relative simplicity of the production of elements of nozzle and also absence of necessity in devices for distribution of treated phases by each single element (in comparison, for example, with plate and film mass transfer apparatuses) 1, 2.
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