滤料板结层的形成与破板结方式探讨
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摘要
过滤罐是油田水处理的重要设施,过滤形成滤料板结层是一种常见的必然现象,而在滤料的反冲洗过程中,若不能及时有效地将板结层破碎掉,将造成反冲洗憋压,滤料流失,影响过滤效果。板结层的形成受进水水质、滤料颗粒、离子成垢以及滤料再生等多方面的因素影响,同时,滤料的板结也影响到滤层过滤孔隙、过滤周期以及滤料反冲洗的难易程度,目前大多采用搅拌方式来实现滤料的破板结功能,存在成本高、易损坏、运行时率低等问题。钢片静态切割是较为经济实用的滤料破板结方式,具有结构简单、造价低廉、无运行部件、无电能消耗、无需人工干预等特点;另外,气水反冲洗也具有较强的破板结作用。
The filtration tank is an important facility for oilfield water treatment. It is a common and inevitable phenomenon that filter material hardened layer is formed due to filtration. In the backwashing process of filter material,if the hardened layer cannot be broken up in time and effectively,backwashing pressure will be built and filter material will be lost,thus affecting the filtering effect. The formation of hardened layer is influenced by many factors, such as water quality, particle size of filter material,ion scaling and filter material regeneration. At the same time,the hardening of filter material also affects the filtering pore,filtering cycle and the difficulty degree of filter material backwashing. At present,although the stirring method is mostly used to realize the function of breaking filter material hardening,there are some problems such as high cost, easy damage and low running rate. Static cutting of steel sheet is a more economical and practical way to break filter material hardening. It has the characteristics of simple structure,low cost,no running parts,no power consumption,no manual intervention and so on. In addition,air-water backwashing also has a strong breaking effect.
The filtration tank is an important facility for oilfield water treatment. It is a common and inevitable phenomenon that filter material hardened layer is formed due to filtration. In the backwashing process of filter material,if the hardened layer cannot be broken up in time and effectively,backwashing pressure will be built and filter material will be lost,thus affecting the filtering effect. The formation of hardened layer is influenced by many factors, such as water quality, particle size of filter material,ion scaling and filter material regeneration. At the same time,the hardening of filter material also affects the filtering pore,filtering cycle and the difficulty degree of filter material backwashing. At present,although the stirring method is mostly used to realize the function of breaking filter material hardening,there are some problems such as high cost, easy damage and low running rate. Static cutting of steel sheet is a more economical and practical way to break filter material hardening. It has the characteristics of simple structure,low cost,no running parts,no power consumption,no manual intervention and so on. In addition,air-water backwashing also has a strong breaking effect.
引文
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[2]柏松林.含聚污水石英砂过滤罐的结构优化[J].油气田地面工程,2011,30(5):38-39.BAI Songlin.Structural optimization of polymer-contained sewage in quartz sand filter tank[J].Oil-Gas Field Surface Engineering,2011,30(5):38-39.
[3]李涛.低压反冲洗过滤器处理油田采出水[J].油气田地面工程,2010,29(4):49-50.LI Tao.Oilfield produced water treatment by low-pressure backwashing filer[J].Oil-Gas Field Surface Engineering,2010,29(4):49-50.
[4]宋磊.油田含油污水反冲洗过滤器的设计[D].哈尔滨:哈尔滨工业大学,2016:16-27.SONG Lei.The design of oil water backwashing filter[D].Harbin:Harbin Institute of Technology,2016:16-27.
[5]李化民,苏显举,马文铁,等.油田含油污水处理[M].北京:石油工业出版社,1992:185.LI Huamin,SU Xianju,MA Wentie,et al.Oilfield produced water treatment[M].Beijing:Publishing House of Oil Industry,1992:185.
[6]夏楠.油田采出水在用过滤器技术对比[J].油气田地面工程,2017,36(12):53-55.XIA Nan.Comparison of the filter technology used for oilfield produced water[J].Oil-Gas Field Surface Engineering,2017,36(12):53-55.
[7]古文革,房永,赵秋实.多层静态切割破板结过滤器及方法:201810580027.0[P].2018-09-04.GU Wenge,FANG Yong,ZHAO Qiushi.The method of destruction hardening filter by multilayer static cutting:201810580027.0[P].2018-09-04.
[8]夏福军,任彦中,隋向楠,等.气水反冲洗工艺提高油田采出水过滤器再生效果[J].油气田环境保护,2014,24(4):42-43.XIA Fujun,REN Yanzhong,SUI Xiangnan,et al.Gas water back-flushing process technology to improve the effect of oilfield produced water filter regeneration[J].Environmental Protection of Oil&Gas Fields,2014,24(4):42-43.
[9]陈鹏,陈忠喜,白春云,等.大庆油田采出水处理工艺技术现状及其认识[J].油气田地面工程,2018,37(7):23-24.CHEN Peng,CHEN Zhongxi,BAI Chunyun,et al.Technology current situation and understanding of the treatment process of produced water in Daqing Oilfield[J].Oil-Gas Field Surface Engineering,2018,37(7):23-24.
[10]马荣.含聚污水石英砂滤料板结机理与措施研究[J].油气田地面工程,2018,37(9):10-13.MA Rong.Study on the mechanism and measures of silicate sand filter material hardening in polymer wastewater[J].Oil-Gas Field Surface Engineering,2018,37(9):10-13.