Installation of the compressor probe and zero setting of the monitor. Theoretically, there is no other metal within 2 times the diameter of the front end of the probe. When the probe is loaded from the outside to the inside, although the gap voltage indication meets the design requirements, sometimes the front end of the probe is not exposed, which is caused by the induced voltage of the mounting hole. The illusion of. The improved installation method should first make the probe touch the journal gently, then gradually withdraw, measure the high and low voltage of the probe in the linear range, and then confirm and fix it. Pay special attention to the fixed torque, and the shielding layer of the probe output line should be one end. Correct grounding; zero setting is one of the major false alarms in the shaft displacement system. These values ​​are not constant with respect to the high-level and high-interlocking of the shaft displacement.

In the past, when the instrument was set up, the instrument personnel did not dock with the mechanical installer. If the actual axis is not considered and set according to a certain fixed value, it will obviously bring hidden danger to the operation of the unit.

If the ambient temperature of the probe exceeds the specified value, offset and measurement errors may occur, and false alarms and malfunctions may occur. The turbine section of the unit (ie GT201) has four measuring probes, which greatly affect the working environment of the instrument probe (the ambient temperature is above 70e) due to the large amount of ultra-high pressure steam leaking from the process. In the actual maintenance, the thermal insulation rock wool was removed, and a protective shell was made at the same time. The shell was placed around the probe, and a large amount of instrument wind or factory wind was introduced into the shell, thus basically ensuring the instrument. Stable operation. The outlet temperature of each section of the cracking gas compressor of each section of the outlet temperature interlocking system is not directly involved in the control. In order to prevent hydrocarbon coking polymerization, a water cooler is provided between each section.

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