3BHE024577R0101 PPC907BE 3BHE024855R0101 UFC921A101 Compressor safe operation interlock is used to control the compressor start/stop and operating status of the most important key equipment, the main control objects include the main steam solenoid valves, governors, high-voltage electrical interlocks (electric tractor unit), adjustable static lobe, anti-surge valve fast-opening solenoid valves, non-return valves. The main control objects include main steam solenoid valve, governor, high-voltage electrical interlock (electric tractor unit), adjustable static lobe, anti-surge valve fast-opening solenoid valve and non-stop valve. In the process of unit operation, a variety of interlocking functions according to a certain sequence of interrelated to achieve the interlocking control of the compressor unit to ensure the safety of the unit. Its functions include: start interlock, static leaf release, automatic operation, reverse flow protection, interlocking stop.

3BHE024577R0101 PPC907BE 3BHE024855R0101 UFC921A101 Ensure that the external conditions and internal conditions that must be present before the unit is started are all in accordance with the requirements. External conditions mainly include lubricating oil temperature (>20℃), lubricating oil pressure (>150kpa), power oil pressure (>11.0mpa), static lobe position (fully closed), anti-surge valve position (fully open) and so on. Internal conditions mean that the status of various internal memories used for unit safety interlocking must all be reset before switching on.

3BHE024577R0101 PPC907BE 3BHE024855R0101 UFC921A101 refers to the operating condition of the unit after the safety unlock has been released. In the process of starting the unit, adjustable static leaf, anti-surge valve and the backstop valve must be locked in the safe position, when the rated speed of stable operation, press the “automatic operation”, the unit is unlocked to the process of loading the air supply, adjustable static leaf, anti-surge valve can begin to automatically adjust.