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42. 发明授权

US4236876A Multiple compressor system 失效
标题翻译：多压缩机系统
公开(公告)号：US4236876A
公开(公告)日：1980-12-02
申请号：US61974
申请日：1979-07-30
申请人： Bruce A. Fraser , Donald Yannascoli
发明人： Bruce A. Fraser , Donald Yannascoli
IPC分类号： F04B39/02 , F04B39/12 , F04B41/06 , F04B23/04
CPC分类号： F04B39/0246 , F04B41/06
摘要： A multi-compressor system comprising first and second stage motor-compressor units, a low pressure line for transmitting vapor from a source thereof to the first stage unit, an intermediate pressure line for transmitting vapor between the first and second stage units, a high pressure line for transmitting vapor from the second stage unit, and a bypass line for transmitting vapor from the low pressure line to the intermediate pressure line to selectively bypass the first stage unit. The first stage unit includes a first supply of lubricant, a first compressor, and a first lubricant overflow passage for passing overflow lubricant from the first supply thereof into the first compressor. The second stage unit includes a second supply of lubricant, a second compressor, and a second lubricant overflow passage for passing overflow lubricant from the second supply thereof into the second compressor. The low pressure line includes a first section, and a second section extending substantially at a right angle to the first section. The bypass line includes a first bypass section connected to the first section of the low pressure line and extending substantially collinear therewith, and a check valve for preventing vapor flow from the intermediate pressure line to the low pressure line via the bypass line.
摘要翻译：一种包括第一和第二级电动机 - 压缩机单元的多压缩机系统，用于将蒸气从其源极传送到第一级单元的低压管线，用于在第一和第二级单元之间传输蒸汽的中间压力管线，用于从第二级单元传输蒸气的管线，以及用于将蒸汽从低压管线传送到中间压力管线以选择性地绕过第一级单元的旁路管线。第一级单元包括第一供应润滑剂，第一压缩机和第一润滑剂溢流通道，用于将溢流润滑剂从第一供应通道送入第一压缩机。第二级单元包括第二供应润滑剂，第二压缩机和第二润滑剂溢流通道，用于将溢流润滑剂从第二供应源传递到第二压缩机。低压线包括第一部分和与第一部分基本上成直角延伸的第二部分。旁通管路包括连接到低压管线的第一部分并且基本上与其共同延伸的第一旁通部分，以及用于防止蒸汽从中间压力管线经由旁路管线流到低压管线的止回阀。

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