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热油泵对于热裂化装置来说,就像人的心脏一样重要。热油泵所接触的是高温高压的油,因此制作热油泵的材料要好,安装的质量要高,操作也比较复杂。常用的热油泵有多极离心泵和往复泵两种。多级离心泵有蒸汽透平带动的,也有用电动机带动的,它的特点是压力高、效率高、不易磨坏;级越多,压力越高,流量也越均匀,对于平稳控制加热炉的流量和温度是很有利的。但是这种泵在检修和操作时都比较复杂,对材料和配件的要求也较高;泵本身没有压力时抽不上油,所以在设计安装时,
Thermal pumps are as important to thermal cracking units as the human heart. Hot oil pump is exposed to high temperature and pressure of the oil, so the production of hot oil pump material is better, the installation of higher quality, the operation is more complicated. Commonly used hot pump multi-pole centrifugal pump and reciprocating pump two. Multistage centrifugal pump with steam turbine driven, but also useful motor driven, it is characterized by high pressure, high efficiency, easy to wear; the more the level, the higher the pressure, the more uniform flow, for a smooth control of the furnace Flow and temperature are very favorable. However, this pump in the overhaul and operation are more complex, higher requirements for materials and accessories; pump itself is not pumping pressure when the pressure is not so in the design and installation,