Low-pressure-drop liquid collector applicable to large tower

Abstract

The invention discloses a low-pressure-drop liquid collector applicable to a large tower. Parallel rectangular strip holes are formed in the baseboard surface of an oil sump tank, the percentage of opening is 50% or above of the sectional area of the tower, the baseboard is slantly downward in the directions of the strip holes to be completely connected with a tower wall, and the rectangular strip holes are completely connected to a steam raising cylinder wall; the steam raising cylinder wall is in the shape of a strip groove, the cross section in the strip direction is of a regular trapezoid structure, and vertical plates are arranged at two ends; layer tower type top plates are mounted at the upper end of the regular trapezoid cylinder wall respectively, the bottommost plate of the layer tower type top plate stretches out of the regular trapezoid cylinder wall by 10 to 200 mm, and the connecting lines of the inner edges and the outer edges of the layer tower top plates are of umbrella-type structures respectively; two ends of the layer tower type top plate are sealed and connected by using the vertical plates at the two ends of the steam raising cylinder wall or stretch out of the vertical plates at the two ends of the steam raising cylinder wall by 10 mm or above.

Description

[0001] 1. Technical field [0002] The invention provides a low pressure drop liquid collector suitable for large towers, and relates to the field of separation towers. [0003] 2. Background technology [0004] With the heavy and inferior quality of crude oil and the large-scale production of unconventional heavy and inferior oil such as shale oil, oil sand oil, heavy (thick) oil, super heavy oil, deep oil, asphalt, and coal tar in the future, it is difficult to directly As raw material for catalytic cracking of heavy oil. Improve the decompression extraction rate, strive to produce more catalytic cracking or hydrocracking raw materials, and reduce the yield of residual oil. It is the refining enterprise's overall plan to optimize the production of downstream coking and catalytic cracking or hydrocracking units, maximize the use of resources and improve efficiency. inevitable choice. Distillate oil extracted under vacuum is mainly used as raw material for catalytic cracking ...

AI Technical Summary

Problems solved by technology

In recent years, large-scale tower liquid collectors (oil collection tanks) mostly adopt the strip-shaped long groove type for the convenience of design, manufacture, and installation. This structure has a certain effect on gas distribution, but it is limited to the structure and cannot play a good role. vapor distribution effect

The inventor once invented the pagoda-type liquid collector (oil collecting tank) with layered structure, ZL96205156. Up to 90%, the pressure drop is extremely low, and the liquid residence time is short; the umbrella structure ensures that the liquid is collected completely and the gas is evenly distributed; The utilization rate of the board is greatly reduced, and the difficulty of structure manufacturing and installation is becoming more and more

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