Vortex flooded direct cooling unit for parallel shared system dedicated to surface treatment industry

Abstract

The invention relates to a vortex flooded direct cooling unit with a special parallel shared system for the surface treatment industry, which includes a shell-and-tube condenser, a flooded anti-corrosion evaporator, and a first pipeline system and a second pipeline system connected between them. pipeline system, and the first pipeline system and the second pipeline system form a closed loop, the first pipeline system includes two scroll compressor units connected in parallel, and each scroll compressor unit includes a A plurality of refrigeration compressors and an oil separator connected in parallel, the refrigeration compressor is connected to the flooded anti-corrosion evaporator, the oil separator is connected to the shell-and-tube condenser, and a return circuit is connected between the oil separator and the refrigeration compressor. Oil pipeline; the second pipeline system includes a dry filter and a group of control valves connected in parallel to control different scroll compressor units. The invention has a reasonable and compact structure, and the scroll compressors are connected in parallel to form a large-capacity compressor module to realize the energy regulation function of a small unit.

Description

technical field [0001] The present invention relates to a vortex flooded refrigeration equipment, in particular to a vortex flooded chiller refrigeration equipment with a plurality of parallel compressor modules sharing the system; System, the refrigeration equipment that optimizes the oil return scheme, can also be said to be the equipment that several groups of parallel scroll compressors share a refrigeration system. Background technique [0002] The existing vortex chillers are mainly dry type, and when they are used in the industry of surface treatment or corrosive brine, they all perform indirect heat exchange through an intermediate heat exchange device. Or use an anti-corrosion heat exchanger to make a dry evaporator for heat exchange, indirect heat exchange, low energy efficiency ratio, increase intermediate links, and large investment. Although the anti-corrosion dry evaporator is direct heat exchange, it is corrosive to load cold The solvent is generally very dir...

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Problems solved by technology

Or use an anti-corrosion heat exchanger to make a dry evaporator for heat exchange, indirect heat exchange, low energy efficiency ratio, increase intermediate links, large investment, anti-corrosion dry evaporator, although it is direct heat exchange, but corrosive cold load The solvent is generally very dirty, which is not conducive to cleaning and maintenance, and the dry-type chiller is not as efficient as the flooded chiller

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