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JP2014043795A Surge generation preventing device and compressor incorporating the same 审中-公开
标题翻译：防爆装置和压缩机的防锈产生装置
公开(公告)号：JP2014043795A
公开(公告)日：2014-03-13
申请号：JP2012185777
申请日：2012-08-24
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： TAWARA KOICHI , SUZUKI KITAMI , ORIGASA HIDEAKI , MIYANAGA TAKESHI
IPC分类号： F04D27/02
摘要： PROBLEM TO BE SOLVED: To provide a surge generation preventing device capable of preventing surge, and easily grasping an operating state of a compressor, and a compressor incorporating the surge generation preventing device.SOLUTION: A surge generation preventing device 10 includes polytropic head calculating means 13 acquiring information on a suction flow rate, a suction pressure Ps, a suction temperature Ts, a discharge pressure Pd and a discharge temperature Td of a compressor 1, and calculating a polytropic head value hpol, molecular weight estimating means 14 estimating a molecular weight MW' of a gas on the basis of the polytropic head value, surge determining means 18 for determining whether surge is generated or not by using a calculated value h not including the molecular weight MW' of the gas on the basis of the surge generation information from an operating point of the compressor 1, performance characteristic calculating means 15 calculating performance characteristic of the compressor 1 by using the estimated molecular weight MW', and operating state calculating means 16 calculating the performance characteristic, the operating point of the compressor and the surge generation information, to the information indicating the relationship between the suction flow rate of the gas and the polytropic head value, and outputting the same to a display unit 17.
摘要翻译：要解决的问题：提供一种能够防止浪涌并且容易掌握压缩机的运行状态的喘振产生防止装置以及包括浪涌产生防止装置的压缩机。解决方案：浪涌产生防止装置10包括多变头计算装置 13获取关于压缩机1的吸入流量，吸入压力Ps，吸入温度Ts，排出压力Pd和排出温度Td的信息，并计算多变性头部值hpol，分子量估计装置14估计分子量基于多变头值的气体的MW'，用于基于浪涌产生信息使用不包括气体的分子量MW'的计算值h来确定是否产生浪涌的浪涌判定装置18 从压缩机1的操作点，计算性能特性的性能特征计算装置15 通过使用估计分子量MW'的压缩机1和运算状态计算装置16计算表示气体的吸入流量和气体的吸入流量之间的关系的信息，该运算状态计算装置16计算压缩机的性能特征，压缩机的工作点和浪涌产生信息多角度头值，并将其输出到显示单元17。

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