The structure of the quality Above 3000L Pure Steam Generator includes the rack, distillation column and preheater bank. The structure is characterized in that: the preheater group consists of at least two preheaters, and the two preheaters are connected at the bottom by connecting pipes. The tops of the two preheaters of Above 3000L Pure Steam Generator are respectively provided with an input port and an output port, and the side walls of the lower portion are provided with a sewage outlet and a condensate water outlet respectively.The upper side wall of the quality Above 3000L Pure Steam Generator distillation column is provided with a raw water input port and a steam output port, the other side is provided with a steam inlet, and the bottom is provided with a condensate water outlet and a sewage outlet. The condensate outlet of the Above 3000L Pure Steam Generator distillation column is connected to the preheater, and the blowdown outlet is connected to the preheater.
The output port of the quality Above 3000L Pure Steam Generator preheater is connected to the raw water input port of the distillation column through a pipe, and the pipe of the input port of the preheater is connected to a multi-stage water pump and a casing heat exchanger. And the input end of Above 3000L Pure Steam Generator casing heat exchanger is connected with the multi-stage water pump, and the output end is connected with the input port of the preheater group. The above-mentioned distillation column, preheater bank, casing heat exchanger and multi-stage water pump are placed in the frame of the quality Above 3000L Pure Steam Generator.