Equipment Diagnosis

Toward the goal of steady and continuous operation of equipment and facilities

In general condition of machine is easily confirmed by daily checking of machine, archive of operating log, operating circumstance. But Hitachi's advanced diagnosis technologies are able to inspect the progress of machine deterioration more strictly and quantitatively.

Our experts apply the dingnosis technologies to a lot of equipment shown below.

Diagnosis Technology

Ultrasonic corrosion diagnosis

Hitachi's ultrasonic diagnosis can inspect corrosion progress inside of vessels and equipment without dismantling. Also this inspection is availabele during machine running and operating.

• Estimating carrion condition of cast iron and carbon steel by using a master evaluation curve created based on the characteristics of ultrasonic diagnosis detector.
• Corroded condition (area and depth) and wall thickness is visually displayed on monitor
• Ultrasonic diagnosis system is consisted of potable PC and handy type detector, which is optimal for onsite working.

Measurement principles

Pulsation analysis of piping systems (reciprocating compressors)

Hitachi improves piping vibration trouble caused by pressure pulsation from reciprocating compressors.

• Analysis of piping vibration
• Performance problem caused by compressor's valve malfunction
• Analysis of instability of safety relief valve

Features

• Vibration simulation and analysis for improvement of high vibration
• Pulsation analysis of piping system is available for both Hitachi reciprocating compressors and other supplier's.

Other Diagnosis technologies

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