| Message: | Compared with traditional shell-and-tube evaporator and condenser, using plate-type evaporator and condenser bring unimaginable benefits. Not only covering less space, saving valuable space, but also reducing investment costs and maintenance without sacrificing reliability and security. On energy saving, plate-type evaporator and condenser can carry on counter-current heat transfer evaporation, closing the temperature difference of two ends. Whereas, shell-and-tube evaporator can only carry on cross heat transfer, so that make the heated steam reduced.1.High efficiency of thermal conductionThe heat transfer coefficient of plate-type evaporator with special corrugated designs which producing high intensity turbulence has been improved greatly, comparing to shell-and-tube evaporator. The plate-type evaporator is particularly effective in high concentration and high viscosity, and can operate in the temperature difference only 3- 5℃. Steam heat pumps need to be used in tube - shell evaporators, and the secondary steam ejection ratio is very low, only 1:0.5. Because the least temperature difference of first effect evaporation of shell-and-tube evaporator need to be maintained at 15℃, it means the temperature of the steam into the shell-and-tube evaporator need to be at higher level, and can only pump small amount of low temperature of secondary steam. Whereas, the steam ejection ratio can be maintained at 1:1.25 when using plate-type evaporator, and it saves steam consumption a lot.2. Less scale and convenient maintenance.The high intensity turbulence in the whole plate not only reduces the scale, but also make it easy for chemical cleaning efficiently. Because of the less retention volume, it only needs few detergent compared with shell-and-tube evaporator. The flexible design of the plate-type evaporator means it is easier to inspect the surface of the thermal conduction, and it can be cleaned by mechanical method which is only removing the fasten bolts and loosening the pressing......url:http://www.hfmphe.com |
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