1.冷炉点火后，控制升温速度10℃/时，直到90—95℃。因为冷炉时油的粘度大，受热面管内流速较低，管壁油膜较厚，传热条件差，如升温速度过快，容易使局部油膜温度过高。
2.95—110℃范围是驱赶系统内残存水分和热传导液所含微量水分阶段。升温速度控制在0—5℃/时范围，视脱水情况决定。当膨胀器放空管处排汽量较大，底部有水击声，管道振动加速，各处压力表指针摆动幅度较大时，必须停止升温，保持恒温状态，必要时可打炉门减弱燃烧。这个阶段时间的长短，视系统内残存水分的多少和热传导液的质量不同而异，短的可以十几个小时，长的可能达数天，在95—110℃之间反复几次，才能将水分排净。不能盲目加快升温脱水过程，因为一旦系统内水分剧烈蒸发汽化，体积将急剧膨胀，不仅可能引起“突沸”，使油位急剧膨胀而大量喷出，而且可能会使整个系统压力急剧升高，导致受压元件破裂，酿成严重事故。
3.当炉内和管道中响声变小，循环油泵不再出现抽空现象(泵出口压力降至0.1MPa以下，有沉重的喘气声)时，以5℃/时的速度再升温，但不能超过120℃，直到放空管不再有汽体排出为止。此时，压力表指针停止波动即为脱水合格。
4.脱水过程完成后，以30℃/时的速度继续升温，但仍应注意可能会有残余水蒸发，随时停止升温。当温度达到210—230℃时要停下来，这时主要为脱出热传导液中的烃组份。热传导液中烃组分的存在，使闪点降低，一旦泄漏，引起爆燃的可能性就增大。在液相供炉的热载体炉中，烃组分以气相存在，会造成“气阻”，使循环泵压不稳，流量不降甚到中断。
中译英：
1 Boiler ignition, control temperature rising speed of10 DEG C /, until 90℃ - 95 ℃. Because the cold furnace oil viscosity, heating surface tube flow rate is low, the pipe wall oil film thickness, heat transfer conditions, such as temperature rising speed, easy to make the local oil film temperature too high.
2 95- 110℃is driven system residual moisture and heat conduction liquid phase trace moisture. Temperature control in 0℃ - 5 ℃/ range, depending on the dehydration of decision. When the expander discharge pipe at the exhaust amount is larger, at the bottom of a water hammer in pipeline sound, vibration acceleration, pressure gauge pointer swing throughout the large amplitude, must stop heating, remains constant, if necessary, make reduced combustion furnace door. This stage time, depending on the quantity of water remaining inside the system and heat conduction liquid quality vary, short can be a dozen hours, long may be up to several days, at 95- 110 ℃repeated several times, to the water drain. Not blindly to accelerate warming dehydration process, because once the system water intense evaporation, volume expansion, not only may lead to" boil", so the oil level expands quickly emitted large quantities, but also may cause the whole system pressure increases sharply, leading to compression element rupture, causing a serious accident.
3 When the furnace and pipeline noise decrescent, circulating pump no longer appear to phenomenon(the pump outlet pressure to below 0.1MPa, heavy breathing), at 5 ℃/ speed when heating up again, but not more than120 ℃, until there is no longer a steam vent pipe discharge date. At this point, the pressure gauge pointer stop fluctuation is dehydrated qualified.
4 Dehydration process is completed, with 30 ℃/ speed when temperatures continue to rise, but still should notice there may be residual water evaporation, to stop heating. When the temperature reached 210℃ - 230 ℃to stop, then mainly out of heat conduction in liquid hydrocarbon component. Heat conduction liquid hydrocarbon components in existence, the flash point is reduced, once the leakage caused by explosion, the possibility of increasing. In the liquid phase for furnace heat carrier furnace, hydrocarbon component in a gas phase, will result in a " choke", so that the pump pressure instability, flow does not drop even interrupt.
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