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蔬菜电热温床的主要电气设备是电加温线和控温仪,附属设备是开关、导线等。一、电加温线电加温线是将电能转换成热能的器件。目前主要用它给土壤加热以提高地温。电加温线由塑料绝缘层、合金材料的电热丝和两端导线接头构成。上海市农机所实验厂、营口市农机所试制厂生产的电加温线等已供应全国各地,它们的主要技术参数和价格如表。
Vegetable electric hotbed of the main electrical equipment is electric heating and temperature control device, ancillary equipment is the switch, wire and so on. First, the electric heating line Electric heating line is the electrical energy into heat devices. At present it is mainly used to heat the soil to improve the ground temperature. Electric heating line by the plastic insulation layer, the heating wire alloy material and both ends of the wire connector. Shanghai Agricultural Machinery Experimental Factory, Yingkou Agricultural Machinery Factory trial production of electric heating lines have been supplied throughout the country, their main technical parameters and prices such as table.