A three-phase separation device used under pressure

Abstract

The invention discloses a three-phase separation device for an under-pressure condition. The three-phase separation device comprises a barrel. A spray pipe is arranged in the middle of the barrel. A gas-liquid separation part is arranged above the spray pipe, a liquid-solid separation part is arranged below the spray pipe, and a solid residue discharging part is arranged below the liquid-solid separation part. The top of the gas-liquid separation part is arranged on an end cover connected with the top of the barrel in a sealed mode, and a gas outlet is formed in the end cover. A liquid-phase outlet is formed in the barrel wall of the liquid-solid separation part. A drain outlet is formed in the bottom of the solid residue discharging part. A stock solution inlet is formed in the middle of the device and provided with the spray pipe, the spray pipe stretches into the barrel of the device, and discharging of gas-phase impurities in effluent is achieved on the upper portion of the device; a liquid-solid separation effect is achieved through a filter in the middle of the device; a spiral backing is arranged at the bottom of the device, and the effects of sealing and discharging of solid-phase residues are achieved. A gas-liquid separator and an electric brush type self-cleaning filter are combined together, and continuous gas-liquid-solid three-phase online separation is achieved. The integration of a system is improved.

Description

【Technical field】 [0001] The invention belongs to the fields of gas-liquid separation and liquid-solid separation, and in particular relates to a three-phase separation device under pressure. 【Background technique】 [0002] Crude oil contains natural gas and sand after extraction from oil wells, which need to be separated before transportation. The treated purified crude oil and natural gas are exported as products. There are generally two methods for the separation of crude oil produced from oil wells in oil fields. One is to first separate natural gas, and then perform solid filtration to finally obtain purer crude oil. This method occupies an area of The area is large and the separation efficiency is low; one is to use a three-phase separator, and the conventional three-phase separator is separated by gravity sedimentation. However, with the increase in the amount of crude oil produced, the separation efficiency of conventional three-phase separators cannot meet the requ...

AI Technical Summary

Problems solved by technology

[0004] The object of the present invention is to provide a kind of three-phase separation device under pressure to solve the problems in the background technology in the process of gas-liquid-solid three-phase separation under pressure. It also realizes the continuous slagging of the system, which can be widely used in the separation treatment of fluids containing both gas phase and solid phase impurities.

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