摘要
目前油田普遍使用压力滤罐对采出水进行过滤,为了提高水处理效果必须定期对过滤罐进行反冲洗。理论上反冲洗时间越长,清洗效果越好,但反冲洗时间过长会增加反冲洗泵运转时间,不利于节能。通常核桃壳滤罐的反冲洗时间要求为20 min。通过摸索合理的反冲洗强度,使冲洗水流剪力与摩擦力达到最佳范围,实现了每座滤罐减少反冲洗时间5 min,降低了反冲洗泵运转时率。按10座滤罐计算,每天节电30.8 k Wh,达到节能的目的。
At present, the oil field widely uses pressure filter tank to filter the produced water, in order to improve the water treatment effect,the filter tank must be regularly backwashed. Theo-retically the longer backwashing time, the better the cleaning effect, but too long anti-wash time will increase the backwash pump running time, which is not conducive to save energy. Usually walnut shell filter backwash time requires for 20 minutes. By exploring a reasonable backwashing strength, so that the rinse water shear force and friction can achieve the best range to let each tank reduce the backwash time by 5 minutes, which reduces the backwash pump operation rate. Taking 10 filter cans as example, the method can daily save electricity by 30.8 Kwh, which achieves the purpose of energy conservation.
出处
《石油石化节能》
2017年第10期34-36,共3页
Energy Conservation in Petroleum & PetroChemical Industry
关键词
反冲洗强度
反冲洗时间
水流剪力
摩擦力
backwashing strength
backwashing time
water shear force
friction
