|국가/구분||United States(US) Patent 등록|
|국제특허분류(IPC7판)||G05D-011/00 G05B-011/42 F04D-017/12 F04D-027/00 G05B-019/416 F04D-027/02 F02C-009/18|
|발명자 / 주소|
|출원인 / 주소|
|대리인 / 주소||
|인용정보||피인용 횟수 : 0 인용 특허 : 16|
A method and apparatus for surge prevention control for multistage compressors with at least two stages, at least one flow measuring device, and one overall surge recycle valve is disclosed. Furthermore, a method of accurate calculation of surge limit line for overall multistage compressor using one available flow measuring device is also disclosed. The method of surge prevention calculates multistage compressor's surge limit line as a product of individual stages surge limit lines that differs from those revealed in the prior art. This method allows acc...
1. An apparatus for surge prevention control, said apparatus comprising: multistage compressors with at least two stages, at least one flow measuring device, and one surge valve, said stages each being equipped with a PID surge prevention controller and said multistage compressors being capable of performing at least a six-step method comprising processor-executed steps using mathematical capabilities implementing control of controller, the method steps comprising: first, determining a surge limit line set point of each compressor stage (ksuv) as a funct...