Issues regarding the interlock settings for the shaft bearing temperature and vibration of centrifugal compressors
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I would like to ask the experts: are there any mandatory requirements for installing interlock shutdown systems for the bearing temperature and vibration of centrifugal compressors? If so, which standard specifies it?
Expert, expert, expert! Great master, great master, great master! Please give a reply
This specification is the standard provided by the manufacturer of the production equipment, namely the equipment user manual.
Vibration and temperature have interrelated requirements, and the compressor’s manufacturer’s instructions should specify strict guidelines regarding this.
It is necessary to install it from the perspective of protecting the compressor; generally, compressor manufacturers will provide relevant requirements regarding alarms and interlocks, which are valuable
Is it not required by the standards?
And generally speaking, this chain of changes should require the highest level of permission in PLC – without it, one cannot make such changes even if they want to
This is a requirement that is necessary both to protect the crew and the production system, and to prevent greater losses or even major accidents. Interlocks must be in place for unit temperature, vibration, displacement, oil pressure, and so on.
1. Whether the temperature and vibration of the compressor shaft bearings are used to trigger an interlocked shutdown is determined by default settings provided by the manufacturer. From the manufacturer’s perspective, interlocking is generally recommended for large compressors. 2. The decision regarding whether to implement such interlocking lies with the user, as different users have varying opinions on this matter. 3. Equipment managers pay close attention to interlocking of mechanical parameters, but corresponding logic to prevent incorrect operations must also be in place
This generally requires monitoring of things such as vibration of the shaft, axial movement, temperature, pressure, and so on