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2. 发明公开

EP0398436A1 Compressor control system to improve turndown and reduce incidents of surging 有权
标题翻译： Verdichterregelsystem zur Verbesserung derMindestfördermengeund zur Verminderung des Pumpens。
公开(公告)号：EP0398436A1
公开(公告)日：1990-11-22
申请号：EP90201227.7
申请日：1990-05-14
申请人： ELLIOTT TURBOMACHINERY COMPANY, INC.
发明人： Heckel, Bruce G.
IPC分类号： F04D27/02
CPC分类号： F04D27/0284
摘要： A method and apparatus for regulating the operation of a compressor system including a compressor (2) moving a gas from an intake conduit (4) through a discharge conduit (6) to a gas storage reservoir (8) are disclosed. In accordance with the method, an unload valve (24) in an unload conduit (22) connected to the discharge conduit (6) is initially fully closed and an inlet valve (18) in the intake conduit (4) is initially fully opened. Then the inlet valve (18) is closed by an amount necessary to maintain the discharge pressure at a design pressure level and at a gas flow rate between the design flow level and a minimum flow level. When the gas flow rate drops below the minimum flow level, the inlet valve (18) is maintained in its last position and the unload valve (24) is opened by an amount necessary to maintain the discharge pressure below a first pressure level set higher than the design pressure level. If the unload valve (24) remains open beyond a position set point for longer than a first predetermined period of time, the unload valve (24) is fully opened and the inlet valve (18) is fully closed. Then if the system pressure drops below a second pressure level lower than the design pressure, the control steps discussed above are repeated.
摘要翻译：公开了一种用于调节压缩机系统的操作的方法和装置，该压缩机系统包括将气体从进气管道（4）通过排放管道（6）移动到气体储存器（8）的压缩机（2）。根据该方法，连接到排放管道（6）的卸载导管（22）中的卸载阀（24）最初完全关闭，并且进气管道（4）中的入口阀（18）最初完全打开。然后，入口阀（18）被关闭以将排放压力维持在设计压力水平和设计流量水平和最小流量水平之间的气体流量所需的量。当气体流速低于最小流量时，入口阀（18）保持在其最后位置，并且卸载阀（24）打开一定量，以将排出压力维持在高于设计压力水平。如果卸载阀（24）保持打开超过位置设定点超过第一预定时间段，则卸载阀（24）完全打开，进气阀（18）完全关闭。然后，如果系统压力低于低于设计压力的第二压力水平，则重复上述控制步骤。

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