论文部分内容阅读
众所周知,当制冷压缩机在停止工作较长时期后启动,或在带入较多液体运转时,冷冻油将会起泡沫。全封闭往复压缩机在机壳内充满吸入制冷剂的情况下,用一油加热器和蓄能器消除起泡,以防止液体压缩引起阀损坏。而全封闭回转制冷压缩机机壳内充满的是排出制冷剂,可以允许有一些泡沫存在。这是因为即使起泡发生,泡沫油也不会吸入气缸;压缩机无吸气阀,不会由于液体压缩造成损害。提高压缩机在制冷循环中的效率和能力,重要的是防止润滑油起泡及外流。
It is well known that refrigeration oils will foam when the refrigeration compressor is started after a long period of shutdown, or when more liquid is being introduced. Fully enclosed reciprocating compressor In the case of the case is full of inhaled refrigerant, the use of an oil heater and accumulator to eliminate foaming, in order to prevent liquid compression valve damage. The fully enclosed rotary refrigeration compressor housing is full of refrigerant, allowing some foam there. This is because even if foaming occurs, the foam oil will not be drawn into the cylinder; the compressor has no suction valve and will not cause damage due to liquid compression. Improve compressor efficiency and capacity in the refrigeration cycle, it is important to prevent the lubricant foaming and outflow.