Discussion on issues related to compressor oil stations
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Let me explain our specific situation: the pressure of the turbine control oil is 0.85 MPa, while the pressure of the lubricating oil is 0.25 MPa. The interlock value for low lubricating oil pressure is 0.18 MPA, at which point the standby pump starts automatically. However, the problem that occurred was a sudden stop of the main pump; this triggered an interlock due to low lubricating oil pressure. The backup pump started automatically after about 4 seconds, but it was not possible for the oil pressure to rise above the interlock value of 0.1 MPa within those 4 seconds. This led to the shutdown of the unit. I would like to ask fellow sailors: how do you do it? Our main pump stopped operating suddenly, and the cause has not been identified. This confuses us all.
Carefully investigate the cause from an electrical and instrumentation perspective – check whether it’s a newly installed unit or one that has undergone major repairs, and look into any recent actions taken.
Reply to 2# zhangya*ong: The accumulator is installed on the control oil pipeline, whereas it is not installed on the lubricating oil pipeline.
Reply 3# mmzsw: It’s a newly installed unit, and the instruments and electrical equipment have not revealed any issues either. The gauge only shows when the main pump stopped, but not the reason.
It’s a problem with the accumulator not being installed. Search on Haichuan; there is relevant information there.
The lubricating oil pump is interlocked with the pressure of the isolation gas in the dry gas seal; please check, based on the instrument alerts, whether the wiring of the connectors is loose or not.
Look carefully for the cause from the perspective of electrical instruments and meters; I’ve encountered such situations too!
Reply to 8# @@Start over@@ They all refuse to admit that it’s their fault. It is said that testing is possible, but the reason for the main pump stopping is unclear. We can only try to maintain the oil pressure; we don’t know much about them.
Reply to 9# JRP5160: Regarding such issues, I suggest that you first clarify the responsibilities of each department. Then check whether your door oil pump motor is overheating or experiencing excessive vibration, etc. Additionally, a high-position oil return device is installed on the pipeline for buffering. Generally, large mechanical equipment like this should be equipped with a high-level oil return device at the oil station. There’s a problem with the design of your door. `
Reply to 10# Desulfurization technology: It is available in the upper fuel tank; the problem arises mainly when the pump stops operating suddenly, and by the time the backup pump starts up to restore pressure, the compressor has already shut down.