Difference between pure steam generator and multi effect distilled water machine

What is the difference between a pure steam generator and a multi effect distilled water machine? The details are as follows: (1) the application of different pure steam generators is a kind of equipment which uses deionized water as raw material water and uses steam heating to produce pure steam It has reasonable structure, simple operation, high thermal efficiency and low energy consumption It is an ideal equipment for sterilization and disinfection in hospitals, pharmaceutical, electronic, food and beverage industries, as well as the equipment meeting the cGMP standard in pharmaceutical industry The multi effect distilled water machine is a new product developed by our company through introducing, digesting and absorbing foreign advanced technology in combination with national conditions, and each index reaches the international level of similar products (2) The feed water of different pure steam generators is delivered to the tube side of the decontamination column and heat exchanger through a feed pump, and the liquid level is controlled by the liquid level gauge After the industrial steam or heating water enters the heat exchanger, the raw water is heated to the evaporation temperature, and a strong heat cycle is formed in the two columns Pure steam will be produced in the evaporator (except for the pollution column) The low speed of the steam and the height of the column will remove any small water drop that may not be pure under the action of gravity According to the working pressure difference between the evaporators, the multi effect distilled water machine can reduce the energy level step by step and use for seven times, achieving the ideal effect of saving energy steam, purified water and no cooling water On the other hand, each evaporator is equipped with three-stage demisting and separating devices, which are gravity sedimentation, spiral turbulence and wire mesh, so that the quality of distilled water produced is better (3) Different processes The purified water of pure steam generator flows into the feed water filter through multistage pump pressurization, and then enters the feed water preheater through flowmeter After the feed water is preheated, it flows out of the preheater and enters the upper part of the evaporator for falling film spray It is heated and evaporated by the boiler steam in the shell side of the evaporator The secondary steam generated by evaporation enters the pure steam generator The pure steam filter catches the liquid drop entrained in the secondary steam The dry pure steam is output to the user for use, and the remaining feed water is discharged as the concentrated water The raw water of multi effect distilled water machine is heated by industrial steam in the primary preheater, and after entering each effect preheater, it is heated by secondary steam; after entering the condenser, it is heated by secondary steam and distilled water; then on the top of the evaporator, it is evenly distributed into the evaporation column through the water separation device, forming a thin-film water flow in the evaporation column; these water flows are quickly evaporated because they are thin, resulting in Secondary steam: raw water not evaporated is sent to the next effect as raw water of secondary effect evaporator Key words: pure steam generator, multi effect distilled water machine, falling film evaporator, box filter press