Condensing gathering separator for separating lubricating oil from refrigerant

Abstract

The invention provides a condensing gathering separator for separating lubricating oil from refrigerant. The condensing gathering separator comprises a cylindrical separator shell, a top cover, a bottom oil-gathering chamber, a hollow annular adsorbing filter, at least one horizontal baffle, a cooling coil, a mixer air inlet, a refrigerant outlet and a lubricating oil outlet, wherein the cylindrical separator shell is vertically placed along axial direction; the top cover and the bottom oil-gathering chamber are respectively mounted at the upper and lower ends of the shell; the hollow annular adsorbing filter is mounted at the lower end of the hollow top cover; the horizontal baffle is mounted under the adsorbing filter on an inner wall of the shell; an outer edge of the horizontal baffle exceeds the radial center of the shell; the cooling coil passes through each baffle in turn; two ends of the cooling coil respectively extend out of the shell; a cooling medium inlet is arranged at one end while a refrigerating medium outlet is arranged at the other end; the mixer air inlet is arranged on one side of the lower part of the shell; the refrigerant outlet is arranged at the top of the shell; and the lubricating oil outlet is arranged at the lower end of the bottom oil-gathering chamber. The condensing gathering separator is simple and compact in structure; various separating effects, such as impacting, condensing gathering, gravity settling, adsorbing filtering, and the like, are integrated in one separator; the refrigerant and the lubricating oil are thoroughly separated; and the higher demand on separating the lubricating oil from the refrigerant is met.

Description

technical field [0001] The invention belongs to the field of separators, in particular to a condensation trap separator for separating lubricating oil from refrigerant. Background technique [0002] The liquefaction process technology using multiple mixed refrigerants has been successfully applied in the field of liquefied natural gas for many years, and has become the leading liquefaction technology in the field of liquefied natural gas, accounting for more than 90% of the large-scale liquefaction plants in this field. The low-pressure mixed refrigerant liquefaction process technology is similar to it in terms of refrigeration principle. The core refrigeration effect is still the throttling effect of the actual gas. The difference is that its core is based on the self-recuperation of the mixed refrigerant to achieve low-temperature refrigeration. (such as ZL200910090844.9). Compared with the high-pressure refrigeration process used in the traditional LNG process, the low-p...

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Problems solved by technology

Most of these oil separation methods are simple in structure and can meet the requirements of general refrigeration systems, but it is difficult to meet the requirements of low-pressure mixed refrigerant liquefaction technology for oil separation effects

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