Inclined tube degreaser for processing oil field sewage containing polymer

Abstract

The invention discloses an inclined tube degreaser for processing oil field sewage containing polymer. The inclined tube degreaser comprises a tank, a coalescence plate, inclined tube assembly packing, two longitudinal oil collecting grooves, a sump oil collection tank and a washing tube are arranged in the tank, and a sludge discharge port is arranged at the bottom of the tank. the inclined tube degreaser further comprises an oil collection tube, distance between plates forming the coalescence plate is 5-6mm, a transverse oil collecting groove is arranged between the two longitudinal oil collecting grooves, the middle portion of the bottom of the transverse oil collecting groove is higher than two end portions, and bottoms of one ends of the two longitudinal oil collecting grooves far away from the sump oil collection tank are higher than the bottom connected with the sump oil collection tank. Ladder-shaped notches are arranged at the upper ends of the lateral walls of the transverse oil collecting groove and the two longitudinal oil collecting grooves. The bottom of the sump oil collection tank is a cone, one end portion of the oil collection tube is funnel-shaped, the other end of the oil collection tube is connected with the sump oil collection tank, a connection tube is arranged on the washing tube, and a water outlet of the connection tube is in a shape of a fish mouth. The inclined tube degreaser is high in oil removing effect, low in cost, safe in operation, convenient to operate and capable of automatically washing and reducing sump oil accumulation.

Description

technical field [0001] The invention relates to an oil field sewage treatment system, in particular to an inclined pipe degreaser for treating polymer-containing oil field sewage. Background technique [0002] Existing inclined tube degreasers (see figure 1 ) is usually treated with a combination of coalescing plates and inclined tube groups, coalescing plates ( figure 1 In 1) the orifice plate corrugated packing is used, which is installed vertically at a certain distance from the equipment inlet; the inclined pipe ( figure 1 4) The cross-section is regular hexagonal inclined tube group packing, which is installed in the middle of the equipment at a certain angle; oil collection tanks for collecting dirty oil are arranged on both sides of the equipment ( figure 1 In 3), the collected dirty oil enters the dirty oil collection tank ( figure 1 In 2), it is discharged from the oil discharge pipe; the sludge deposited at the bottom of the tank is flushed through the system ( ...

AI Technical Summary

Problems solved by technology

When the production water contains polymers, the inclined tube degreaser with the above structure will appear during use: 1. Blockage of the coalescing plate

2. After the generated dirty oil accumulates on the top of the tank, its fluidity is very poor, especially at the far end of the oil collection tank.

5. There will be a small amount of oil slick on the top of the clear water area. After a long working time, the generated oil slick will increase, which will affect the use effect of the equipment

6. The solid sediment at the bottom of the tank is not easy to be discharged from the sewage outlet due to the influence of the polymer. In severe cases, the sewage cannot be discharged, resulting in abnormal operation of the equipment

Images