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1·The mechanical seal leakage of hot oil pump has always been an important problem for oil refineries.

热油泵机械密封的泄漏一直是炼油厂关注的重要问题。

2·The welded metal bellows mechanical seal is largely used for the axial seal of hot oil pump in refinery.

焊接金属波纹管机械密封主要用于炼油厂热油泵的轴封。

3·External catalyst cooler is located between hot oil pump room, regenerator and catalyst tank, very difficult to be hoisted.

外取热器位于热油泵房、再生器、催化剂罐、大型烟道的中间，所处位置给管束吊装带来了很大的难度。

4·Flexibility design method of large scale hot oil pump inlet piping is expounded as well as the layout of pipeline, support and hanger.

介绍了大型热油泵入口管系的柔性设计方法、管道的布置方式、支吊架的设置方式。

5·At the initial stage of development, the main oil production methods give priority to hydraulic piston pump and closed hot water circulation.

开发初期，主导开采方式主要以“水力活塞泵、闭式热水循环”等采油工艺为主。

6·Pump body has a hollow sandwich, with import and export of flange, can be used in the thermal oil, steam, hot water and other media for conveying liquid and heat insulation and cooling pump.

泵体设有空心夹层，并设有进出口法兰，可用于导热油、蒸气、热水等媒体对输送的液体和泵进行加热保温及冷却。