It vertical or horizontal installation, usually oil, steam or tube type or belt type electric heaters heating.
它垂直或水平安装，通常用油、蒸汽或筒式或带式电热器加热。
2
The utility model discloses a steamheating device for rereeling machines and silk cocoon reeling machines in silk industry, mainly composed of a steam input tube and a condensation returning tube.
本实用新型公开了一种用于丝绸业中复摇机、缫丝机的蒸汽加热装置。
3
The utility model discloses a steam-free alcohol distillation tower which comprises a tower body and a heating device; the heating device is in annular coiled tube structure;