发明名称 |
METHOD AND APPARATUS FOR MEASURING THE DISTANCE OF A TURBOCOMPRESSOR'S OPERATING POINT TO THE SURGE LIMIT INTERFACE |
摘要 |
A method and apparatus are disclosed for protecting turbocompressors from unstable flow conditions (surge and stall). To accomplish this, it is necessary to easily and accurately calculate a compressor's operating point and its distance from the interface between the surge region and the stable regionthis interface is referred to as the Surge Limit Interface. The proximity of theoperating point to the Surge Limit Interface. The proximity of the operating point to the Surge Limit Interface is calculated using measurements of properties throughout the compressor-process system. It is crucial that the calculation be invariant to suction conditions, especially gas composition. Disclosed are three coordinates, Tr (reduced torque), Pr (reduced power), and Ne(equivalent speed). Each of these can be combined with other invariant parameters to construct coordinate systems in which to define the Surge Limit Interface and measure the distance of the operating point to that interface.
|
申请公布号 |
CA2146583(A1) |
申请公布日期 |
1995.10.08 |
申请号 |
CA19952146583 |
申请日期 |
1995.04.07 |
申请人 |
COMPRESSOR CONTROLS CORPORATION |
发明人 |
BATSON, BRETT W.;NARAYANAN, KRISHNAN |
分类号 |
F04D27/02;(IPC1-7):G06F19/00;G05D7/06 |
主分类号 |
F04D27/02 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|