1. Structure: The evaporator, preheater and condenser are all designed with double tube sheet, and the inner tube plate is expanded and welded externally to avoid cross contamination.
2. Separation device: three-stage separation with falling film evaporation, gravity separation and spiral flow.
3. Material: all parts in contact with raw water, pure steam, and pure steam condensed are made of SS316L.
4. Thermal preservation and insulation: the evaporator, preheater, and condenser all use aluminum silicate needle punched blanket, which has good extensibility, light weight, excellent heat insulation and strong stability.
5. Surface treatment: The internal and external surfaces are electrochemically polished to effectively ensure the smoothness of the stainless steel surface. The external surface can also be sandblasted.
6. Energy saving and consumption reduction: The evaporator and the separator form a huge communicating device, thus the heat can be fully utilized. The whole equipment can reach its maximum production capacity from standby in a short period of time. The use of liquid level to control the raw water is fully utilized to achieve full energy saving and consumption reduction. The preheater 2 uses industrial steam condensed water for preheating, which saves energy.
7. Stainless steel pipe are used as far as possible to directly stretch the elbow to avoid welding. Welding parts of pipelines and accessories should be automatically welded with argon protection (single-side welding and double-side forming process) to ensure welding quality, and electrochemical polishing after welding.
8. Provide verification materials such as endoscopic inspection photos, solder joint diagrams, pressure test and pickling passivation reports, and system design documents.
9. The control system adopts HMI+PLC fully automatic control, and the operation interface is simple. Various communication modes are available. Control system authority levels: at least three levels of authority can be set.
10. Online monitoring of parameters such as conductivity, temperature and flow. The recorder can choose a paperless recorder or a paper recorder to record and print key parameters.
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