某船低温库蒸发器融霜方案改进设计与应用

Improved design and application of the icehouse evaporator frost-melting scheme on a ship

某船低温库蒸发器在使用过程中先后多次出现蒸发器融霜电加热管烧坏、落水管加热丝烧坏、集水盘加热丝烧坏的现象,造成蒸发器结霜严重,集水盘结冰,冰库制冷效果变差。严重结霜容易引起蒸发器风机堵转,从而导致风机电机过载烧毁的严重后果。本文介绍了某船低温库蒸发器融霜工作原理,总结指出了设备存在的问题,分析了产生问题的根源,并针对存在的问题提出了相应的改进措施,提出了融霜改进方案应用中的注意事项。改进后蒸发器工作正常,改进方案应用效果得到了较好的验证。

There were many faults about evaporator forst-melting heater,heating wire in the rainspout and heating wire in catchment tray on a ship freezer evaporator when it was used.The faults resulted in evaporator frosting badly,catchment icingr,ifrigeration effect of icehouse falling down.Badly frosting can result in evaporator fan being stopped up.So that it results in bad result that fan electromotor burns becaouse of over loading.The paper introduces the working principle of the icehouse evaporator frost-melting on a ships,ummatizes the problem of the equipment,analyses the cause of the problem,gives the improved measures aiming at the problem correspondingly,gives the notice proceeding about the frost-melting improved scheme.The evaporator worked well.That validated the effect of the improved shceme.