Multiphase flow assembled closed coagulation settling device

Abstract

A multiphase flow assembly type closed coagulation settling device comprises a tank, a water inlet segment A, a flocculation mixed reaction segment B, a coalescence separation segment C, a coalescence separation segment C, a steady flow segment E and a water outlet segment F, wherein the tank is designed in a closed manner, and the water inlet segment A, the flocculation mixed reaction segment B, the coalescence separation segment C, the coalescence separation segment D, the steady flow segment E and the water outlet segment F are arranged in a left-to-right order; the water segment is communicated with the flocculation mixed reaction segment through a water inlet chamber, and grid flocculation is added in a flocculation cylinder, so medicine mixing and reacting effects are improved through utilizing the grid flocculation reaction; and sewage treated by the flocculation mixed reaction segment sequentially goes through the above two coalescence separation segments, oil comes up, mud sinks, and the treated sewage goes through the steady flow segment, enters the water outlet segment and is discharged by a water outlet tube. The device has the advantages of no oxygen exposure points because of tight pressure in the whole course, good separation effect because of the high treatment efficiency, corrosion resistant filler, stable separation effect, adjustable inclined plate interval, convenient dismounting and recondition because of the assembly type structure, occupied land saving because of the high integrated level, convenient operation because of the high automation degree, and convenient construction and short period because of the prefabricated whole skid.

Description

technical field [0001] The invention relates to a multi-phase flow assembly researched and developed for the problems of conventional coagulation and settling tanks in oilfield sewage stations, such as water exposure to oxygen, difficulty in oil collection, poor sludge discharge effect, large tank body and large area occupation, and poor efficiency in treating sewage containing aggregates. Type closed coagulation sedimentation device, the purpose is to further improve the treatment efficiency of conventional sewage and sewage with low polymer content, improve the treatment effect, and reduce the difficulty of operation and management. Background technique [0002] At present, most of the coagulation-settling devices in sewage treatment stations in domestic oilfields use vertical coagulation-settling tanks. However, this type of device has a large tank body, occupies a large area, has low efficiency in separating poly-containing sewage, and has a long hydraulic retention time....

AI Technical Summary

Problems solved by technology

[0002] At present, most of the coagulation-settling devices in sewage treatment stations in domestic oilfields use vertical coagulation-settling tanks. However, this type of device has a large tank body, occupies a large area, has low efficiency in separating poly-containing sewage, and has a long hydraulic retention time. During the operation, conventional coagulation settling tanks have problems such as water exposure to oxygen, difficulty in oil collection, and poor sludge discharge effect, which affect the efficiency of sewage treatment to a certain extent and increase the difficulty of operation and management of sewage stations.

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