天然气三甘醇脱水装置新型滤芯设计与实用效果

A new filter element designed for TEG natural-gas dehydration device and its practical effects

为了提高滤芯在天然气脱水生产中的使用效果、延长其使用寿命、解决滤芯在天然气脱水生产过程中所面临的无法清洗、不耐压以及过滤面积浪费较大等问题,以天然气脱水工艺中广泛采用的三甘醇脱水装置滤芯为研究对象,分析了现有滤芯在脱水生产过程中的弊端与不足,指出了其整体式设计不能拆分、二次利用率低、易导致断裂、有效接触过滤面积小、端盖易脱落、过滤效率低等问题,并有针对性地提出了新型滤芯设计思路。研究结果表明:①经过对现有滤芯结构的优化,原创性地研制了一种新型结构的滤芯;②新型滤芯克服了现有技术的不足,解决了滤芯使用过程中清洗困难、过滤面积小、使用寿命短、更换频率高等问题,有效提高了滤芯的过滤效率。结论认为,该新型滤芯具有创新性、实用性,经济效益明显,后续可以根据生产实际开展现场适用性优化,进而达到提质增效的目的。

In the process of natural-gas dehydration production,filter elements cannot be cleaned and withstand pressure,and their filtration area is too wasted.So,both shortages and deficiencies of existing elements were analyzed by taking a certain filter element designed for TEG dehydration device as an example,which has been extensively used in this dehy⁃dration so as to make element's application effects better and prolong its service life.And some problems were pointed out,like an integral design without being split,low rate of secondary utilization,high break-off,a limited area of effective con⁃tact filtration,easy fall-off of end cap and low filtration efficiency.In addition,a novel filter element was put forward.Re⁃sults show that(i)this element with new structure is innovatively developed after structural optimization of those existing filters;and(ii)it can overcome many disadvantages in traditional elements,such as difficulty in cleaning,short service life,small filtration area and frequent replacement,and its filtration efficiency can also be scaled up.In conclusion,the newly designed filter element is innovative and practical with obvious economic benefits.It is essential to further optimize its ap⁃plication based on actual production in an effort to achieve one goal of improving quality and efficiency.