Fractionating tower top of tower water oil separating system

The utility model provides a fractionating tower top of tower water oil separating system, the system includes oil -water separation tank and purification and separation device, and oil -water separation tank's dehydration package links to each other with the liquid material entry of purification and separation device, and the oil export of purification and separation device links to each other with oil -water separation tank's oil entry, and outer sour water system of the sour water export of purification and separation device and water oil separating system is continuous. The utility model discloses a set up the purification and separation device on the outlet pipe way that oil -water separation tank's dehydration was wrapped, has reduced the outer row of oil content in the sour water, the system does not need additionally to increase power device, relies on autogenous pressure to realize the circulation, and the flow is simple, and the equipment investment is little, and cost and energy consumption are low