We are top quality ice machines manufacturer .Our products are cube ice machine ,ice block machine ,ice tube machine ,ice flake machine ,ice plate machine ,cold room ,ultra-low temperature chiller.And the evaporator has shell-and-tube heat exchanger ,plate type heat exchanger and plate-and-tube type heat exchanger .
However ,plate tube type heat exchanger has simple structure, and is low cost, easy to damage, and no drive fan, so not only reliable and low noise when plate and tube heat exchanger pipe work due to the temperature of the working fluid along the condensing coil decreasing backplane uneven temperature, and therefore non-isothermal heat back natural convection and radiation heat transfer, while there are also thermal itself.It is ok to freeze inside the tube .But shell-and-tube heat exchanger and plate type heat exchanger both can't freeze inside them otherwise they damage.
The ultra-low temperature chiller use plate tube type heat exchanger .There are two kinds of ultra-low temperature evaporators which are ammonia system evaporators and fluorine system evaporators .
ammonia system evaporator
fluorine system evaporator