Steam-liquid separator for crude oil extraction and evaporation

Abstract

The invention relates to a crude oil extraction and evaporation vapor-liquid separator, which belongs to vapor-liquid separating equipment. The crude oil extraction and evaporation vapor-liquid separator comprises a cylinder body, a feed opening, an air outlet and a discharge opening, wherein a sieve plate is arranged below one side of the feed opening inside the cylinder body; sieve pores are uniformly arranged on the sieve plate; and a riser is arranged on the sieve plate. Due to arrangement of the sieve plate inside the cylinder body, liquid the sieve plate form an included angle and mutually impact at high speed and then the liquid is sputtered, so as to change the operating track of the liquid in the cylinder body, to increase the centrifugal turning radius of the liquid and to prolong the operating route, thereby prolonging the centrifugal time, increasing the instant vacuum degree, and contributing to gas volatilization, making gas and the liquid easier and more complete to separate.

Description

Technical field [0001] The invention belongs to vapor-liquid separation equipment, in particular to a vapor-liquid separator used in the evaporation and separation process of leaching crude oil. Background technique [0002] The process of producing crude oil by leaching method includes raw material pretreatment and oil leaching. The mixed oil after leaching is evaporated for the first time, and the concentration of the mixed oil is increased to 60-65%; after the second evaporation, the concentration of the mixed oil reaches 90%. ~95%; the solvent mixed gas discharged during the evaporation process is separated by the vapor-liquid separator and recovered by the cooling system for recycling. The equipment is cylindrical, with an inverted funnel-shaped top, an air outlet in the center, a funnel-shaped lower part, a liquid collection bin, and a feed inlet in the tangential direction on the side. The vapor-liquid mixture enters the vapor-liquid separator along the tangential dir...

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Problems solved by technology

Because the space in the gas-liquid separator is too large, the force of the liquid is relatively small when spraying, the radius of rotation becomes smaller, the instantaneous vacuum degree becomes smaller, and the separation effect decreases.

In the actual application of crude oil production by leaching method, due to the reduced solvent boiling effect, the complete separation of solvent and crude oil cannot be satisfied under normal temperature conditions, and the solvent content in crude oil exceeds the standard. The oil temperature is too high, the color of the crude oil changes, which increases the difficulty of the subsequent process of the salad oil workshop, reduces the refining rate, and the melting consumption is high, and the steam consumption is too high

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