Power interactions of scroll compressor elements

Abstract

The subject of our research is a scroll compressor. With its large number of advantages over reciprocating compressors in the form of overall, mass and production characteristics, they have their own difficulties associated with the theory of stability of a movable scroll during the operation process. As you know, a complex system of forces acts on the spiral, is very variable in magnitude and direction, for the period of one orbital revolution of the spiral. It should be noted that in modern designs of scroll compressors in the axial direction, a movable scroll has most often a one-sided rigid support - a thrust bearing. Moving the movable spiral in the opposite direction is limited only by the force of the gas axial pressure, which does not guarantee it saving its original position, at least within the gaps, touching the movable and stationary spirals, which is unacceptable. Next, we consider the basic calculation equations associated with the stability of a moving spiral.

To the issue of optimising the performance of a scroll compressor as part of a CO2 booster refrigerating machine in order to increase its efficiency

“…Анализ источников [9][10][11], показал, что основные потери при работе компрессора на высоких давлениях в закритической зоне, как правило, складываются из внутренних, преимущественно вызванных протечками рабочего вещества и внешних потерь на трение. Вопрос силовых факторов и энергетических потерь был рассмотрен в работах [12,13], при этом выводы, сделанные, в работе [13], дают достаточное основание полагать о возможности решения данного вопроса на стадии проектирования. Согласно выводов из работ [9,16], процесс протечек в рабочей части СПК остаётся в достаточной степени не предсказуемым.…”