A cyclone electrostatic coalescence device

Abstract

The invention discloses a cyclone electrostatic coalescing device, which comprises a coalescing main body, a top blocking assembly, a bottom blocking assembly, an electrode assembly, and a transformer assembly; the coalescing main body includes a cylinder, and an inlet is arranged on the left side of the upper part of the cylinder The upper right side of the cylinder body is provided with an exhaust pipe; the top plugging component is fixedly connected to the top of the cylinder body, the bottom plugging component is fixedly connected to the bottom of the cylinder body, and the center of the bottom plugging component is provided with an outlet pipe; The electrode assembly is arranged inside the barrel, and the transformer assembly is arranged inside the barrel. The swirl electrostatic coalescence device of the present invention adopts the synergistic effect of the electric field and the swirl field, and the electric field promotes the mutual attraction and collision of the water droplets in the oil to merge into large water droplets; on the one hand, the swirl field improves the collision intensity and frequency of the water droplets in the oil, and accelerates the coalescence of the water droplets On the other hand, the water droplets in the oil gather to form a water film on the inner wall of the cylinder, which further increases the electric field strength in the annular flow channel and improves the coalescence efficiency of the water droplets in the oil.

Description

technical field [0001] The invention belongs to the technical field of multiphase separation of oil and gas gathering and transportation systems, and in particular relates to a swirl electrostatic coalescence device, which improves the collision intensity and frequency of water droplets in oil through the synergistic effect of a swirl field and an electric field, and accelerates the coalescence process of water droplets. Realize efficient demulsification of oil-water emulsion. Background technique [0002] With major oilfields entering the middle and late stages of development and the use of enhanced oil recovery methods such as surfactants and polymer flooding, the crude oil extracted from the ground often contains a large amount of associated water, forming a stable crude oil emulsion. Water in crude oil will not only increase the load on equipment during storage and transportation and fuel consumption when heating up, but also cause scaling and corrosion of metal pipes an...

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Problems solved by technology

The internal flow of the electrostatic coalescence device disclosed in the above-mentioned patent is mainly laminar flow or turbulent flow, and the oil-water separation only relies on the action of electric field and gravity field. When the distance between water droplets is far away, the induced dipole force is weak, the collision frequency is low, and the coalescence effect is poor; And all are equipped with high-voltage wiring joints, the operation safety of the device is not high

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