How do intelligent inspection devices affect the display of compressor inlet pressure
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Our facility has a reciprocating hydrogen compressor that has experienced unplanned shutdowns on multiple occasions for unknown reasons. The day before yesterday, when the field operator approached with the intelligent inspection device, the control room immediately notified that the inlet pressure of the hydrogen compressor had suddenly increased ； The field technician immediately moved away; this reminded him of the previous incident when the inlet pressure of the hydrogen compressor suddenly increased, causing an interlock shutdown, and in that case too, a smart inspection device was used to carry out inspections in the area. After multiple tests, it was proven that the intelligent inspection device does indeed have an impact on the remote display of pressure. I’d like to ask the experts: what is the principle behind this?
Indeed, there are cases like what you mentioned, which are caused by signal interference; it is recommended to take relevant shielding measures at the remote transmission points! Here, we used to have significant interference from walkie-talkies as well as from certain instrument indicators; so we replaced them all, and now there’s no more interference issue!
I communicated with the technical staff in charge of shipping at our company. The reasoning is the same: given the difficulty in determining whether the signal from the intelligent inspection device and the remote pressure signal from the hydrogen pressure compressor are on the same frequency ； First, check whether there are any damages or breaks in the shielding of the pressure transmission signal wire of the hydrogen pressure compressor; if so, repair it before conducting the test. I look forward to identifying the real cause and sharing it with my colleagues.
Looking forward to sharing so that more people can avoid unnecessary detours.