液下硫磺泵是四川石油管理局川西北矿区天然气净化厂硫磺生产的重要设备之一。过去使用的液下硫磺泵寿命短,检修频繁,且工作条件恶劣。对液下硫磺泵进行整改,大大延长了液下硫磺泵的使用寿命,保证了硫磺产量。现就整改过程介绍如下。整改前存在的问题 (1)液下硫磺泵(扬程30m,排量10m~3/h(见图1—a),由碳钢与铸铁制作。其蒸汽夹套与蒸汽管焊接处易腐蚀穿孔、液硫窜入泵出口蒸汽管内凝固,阻塞蒸汽,保温失效,液硫逐渐凝固,造成液下硫磺泵排量不足或无排量而停产 Liquid sulfur pump is the Sichuan Petroleum Administration Northwest Sichuan natural gas purification plant sulfur production of one of the important equipment. In the past, the liquid sulfur pump used for short life, frequent maintenance, and poor working conditions. The liquid sulfur pump rectification, greatly extending the service life of liquid sulfur pump to ensure the production of sulfur. The rectification process is as follows. Pre-reform problems (1) liquid sulfur pump (head 30m, displacement 10m ~ 3 / h (see Figure 1-a), made of carbon steel and cast iron. Steam jacket and steam pipe corrosion perforation , Liquid sulfur fleeing into the pump outlet steam pipe solidification, blocking steam, heat failure, liquid sulfur gradually solidified, resulting in liquid sulfur pump displacement or lack of displacement and discontinued