Discussion on oil pipe leakage issues in the Herbig variable flow control hydraulic system used in new hydrogen compressors!
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The new hydrogen compressor uses three-stage compression! The third-stage discharge pressure is around 12 Mpa! Stepless air volume control is used for each stage of compression! What should be done if there is oil leakage from certain pipes in the degassing valve of a hydraulic oil station with variable air volume control (sand holes appearing in those pipes)? The pressure at the hydraulic oil station is around 11 Mpa. Additionally, when the hydraulic oil pump is shut down, the equipment operates under a load of 100; during normal operation, the loads at the first, second, and third stages are around 60 each, and the return lines are all closed! Solution: Adjust all tertiary loads to 100% load, and use return lines to control pressure and pressure ratio! Shut down the hydraulic oil station pump, replace the oil hoses; after completion of these tasks, start the hydraulic oil pump, reduce the load, close the return line, and adjust to normal operation! Check the operation of the press; if any abnormalities occur, immediately start the backup unit! Stop the variable-volume air compressor! Is this approach correct? Need some advice! Improved!
I don’t think there’s any problem. If the processing time is long, it’s best to shut down the machine.
It’s all been sent here. The method is feasible; there is a design approach for compressors that involves return line control. If the pressure ratio can be controlled, it does not affect the operation of the unit at all, though the economic efficiency is lower.
It’s time to shut down and replace the oil pipe! Cut over!
The design of this system is such that in the event of a failure, it switches to operating at 100% load, and at that time operation can be stabilized by adjusting the return valve.