介绍了利用霞普气制作的预热装置，实现了压缩机焊接机壳不需进炉就能预热的关键。

Preheating unit by using Xiapu gas is introduced, the key point that welding casing can be preheated without getting into furnace has been achieved.

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机组装有进气预热器，可选装燃油加热器和冷却液加热器等冷启动装置，解决机组在低温、高海拔地区的发动机起动难问题。

With cold starting devices, such as inlet pre-heater, optional fuel heater and coolant heater, the unit has solved the difficult starting problem under low temperature and high altitude areas.

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并可选配硅油风扇、进气预热和燃油预热装置，更适用于高寒工作环境。

Adjusting to freezing region working condition, can be equipped with silicon oil fan, intake pre-heater and fuel oil pre-heater.

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