Heaters with feed and air preheated by hot flue gas and hot residue oil respectively have attracted extensive attention.
管式加热炉采用“冷进料、热油预热空气”以提高热效率，受到了广泛的注意。
Fuel oil and lubricating oil sy stems including pumps, purifiers, filters, heaters.
滑油管系，包括泵、分油机、滤器、加热器和管系状况满意，无泄漏。
High thermal utilization factor, resource as steam, electricity and heating, coal, oil, fuel heaters, etc, could be used according to the user's situation.
热利用率较高，可依用户情况选用蒸汽、电加热、燃煤、燃油、燃气炉等。
This quick valve is equipped with heaters and feedback sensors for accurately controlling the oil temperature.
此快捷阀配置有加热器和反应传感器，以精确控制油的温度。
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。
There is great energy-saving potential in the oil refineries of the P. R. China because of the shortcomings such as high temperatures of discharging gas and low heat efficiency in the heaters.
我国炼油厂加热炉普遍存在排烟温度高和热效率低的缺点，具有较大的节能改造潜力。
There is great energy-saving potential in the oil refineries of the P. R. China because of the shortcomings such as high temperatures of discharging gas and low heat efficiency in the heaters.
我国炼油厂加热炉普遍存在排烟温度高和热效率低的缺点，具有较大的节能改造潜力。
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