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    • 5. 发明申请
    • METHODS AND SYSTEMS FOR COMPRESSOR OPERATION
    • 压缩机操作的方法和系统
    • US20110113797A1
    • 2011-05-19
    • US13003942
    • 2008-07-23
    • Fabienne PeyaudJeanPhilippe GouxDavid VeillonFrederic Brisset
    • Fabienne PeyaudJeanPhilippe GouxDavid VeillonFrederic Brisset
    • F25B1/00F25B43/02
    • F25B49/02F25B41/04F25B2400/01F25B2500/26F25B2500/31F25B2600/025
    • There is provided a refrigeration system (10) comprising a compressor (12) having a suction (11) and a discharge (13), a heat rejecting heat exchanger. (14), an expansion valve (16), and a heat accepting heat exchanger (18). Preferably the system (10) comprises any one or more of: a pressure equalisation valve (4O3 42) for equalising the pressure differential between the compressor suction (11) and compressor discharge (13); a liquid valve (44), preferably a liquid solenoid valve or an electronic expansion valve, the liquid. valve (44) arranged in a flow line (24) between the heat rejecting heat exchanger (14) and the expansion valve (16); and a check valve (46), preferably a solenoid valve or an electronic expansion valve, arranged in a flow line (22) between the heat rejecting heat exchanger (14) and the compressor (12). The valves (40, 42, 44, 46) are operated in a variety of manners upon compressor shutdown and startup to avoid damage to the components of the compressor (12). Preferably the system further comprises means for heating at least one component of the compressor (12) and preferably also control means for activating the heating means when appropriate, such as when compressor startup is required, and starting the compressor after heating.
    • 提供一种制冷系统(10),其包括具有吸入口(11)和排出口(13)的压缩机(12),热排出热交换器。 (14),膨胀阀(16)和受热热交换器(18)。 优选地,系统(10)包括用于均衡压缩机吸入口(11)和压缩机排出口(13)之间的压力差的均压阀(403,42)中的任何一个或多个; 液体阀(44),优选液体电磁阀或电子膨胀阀,液体。 设置在排热热交换器(14)和膨胀阀(16)之间的流路线(24)中的阀(44); 以及布置在排热热交换器(14)和压缩机(12)之间的流动管线(22)中的止回阀(46),优选地是电磁阀或电子膨胀阀。 在压缩机关闭和启动时,阀(40,42,44,46)以各种方式操作,以避免损坏压缩机(12)的部件。 优选地,系统还包括用于加热压缩机(12)的至少一个部件的装置,并且优选地还包括用于在适当时激活加热装置的控制装置,例如当需要压缩机启动时,以及在加热之后启动压缩机。