HydroCOM Stepless Capacity Control System In The Application Of The Reciprocating Compressor

The 140×104t/a diesel-hydrogenated unit in Yong Ping refinery uses the Reciprocating Compressor. This compressor uses the returns of the inlet gas flow to control the outlet flow, which to a large extent consumes power in the inlet gas. So it leads to severe energy waste. Then the refinery puts HydroCOM stepless capacity control system into service. At the phase in starting compressing gas, it uses computer to deal with signals, and it keeps the opening time of intake valve for a period of time under the action of unloading device, and then it delays the closing time of intake valve. In conclusion, letting some gas return to the inlet chamber through the inlet casing, it achieves continuous regulation of air flow from 0% to 100%. Paper analyzes the current common reciprocating compressor gas regulating mode, through the comparison between them, their respective advantages and disadvantages and applications are pointed out. And then to the HydroCOM yong ping refinery use stepless air conditioning system has carried on the detailed introduction. HydroCOM is He Erbi grumman developed gas stepless regulating system, by reducing the compressor gas load, so as to reduce the compressor energy consumption as a whole. HydroCOM are the most widely used energy saving reciprocating compressor control system. Paper expounds HydroCOM system basic principle of comprehension, composition of HydroCOM system main components, and the adjustment function of each part made a specific analysis【3】. For He Erbi grumman designed for yong ping refinery hydrogenation compressors with HydroCOM system, has carried on the scene debugging. In the DCS configuration at the same time, application no disturbance switching control scheme, to achieve the smooth switching of the control system. Finally the effects of HydroCOM system is evaluated, the system is able to satisfy the requirement of process production, energy saving effect is obvious.