Third-level cyclone separator with large handling capacity

Abstract

The invention relates to a third-level cyclone separator with large handling capacity, which is mainly used in an energy recycling system of a catalytic cracking unit for refining petroleum for gas-solid separation. The separator comprise a housing, a smoke outlet, a smoke inlet, a center tube, a plurality of single cyclone separators, a hanging clapboard and the like, wherein, the internal part of the housing is divided into three relatively independent spaces of an air inlet chamber, an air collecting chamber and a dust collecting chamber; a plurality of single cyclone separators are arranged in the housing in a double-ring double-layer mode; a plurality of single cyclone separators are arranged and installed in the housing according to inner and outer rings and upper and lower layers; the arrangement ensures that each cyclone separator can keep optimum pressure balance and even distribution of air quantity so as to effectively ensure device operation stability and safe running in long period; in a plane space and vertical space which are as small as possible, the cyclone separators with large handling capacity and favorable performance are arranged as much as possible, which solves the problems of loading and thermal expansion and reduces equipment investment.

Description

technical field [0001] The invention belongs to petroleum refining chemical equipment, and more specifically relates to a device for gas-solid separation in an energy recovery system of a catalytic cracking unit in petroleum refining. Background technique [0002] In the energy recovery system of the catalytic cracking unit of the refinery, the third-stage cyclone separator (abbreviated as three-cyclone) is one of its key equipment. With the development trend of large-scale units, there are more and more large-scale catalytic cracking units with a processing capacity of 4-6 million tons per year under construction and to be built at home and abroad. Currently commonly used three-rotation structure types include multi-tube vertical three-rotation and multi-tube horizontal three-rotation. In the case of large processing capacity, the above two types of three-rotors have the problems of difficulty in manufacturing and maintenance of equipment (even impossible) and unguaranteed...

AI Technical Summary

Problems solved by technology

In the case of large processing capacity, the above two types of three-rotors have the problems of difficulty in manufacturing and maintenance of equipment (even impossible) and unguaranteed performance due to the large size of the equipment, and cannot meet the requirements of large processing capacity at all.

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