Decoking System – Winch and Rotary Joint Electric Drive

Decoking System – Winch and Rotary Joint Electric Drive

Over the past decade, many refineries have transitioned to electric drives for their coke cutting equipment to overcome compressor capacity limitations and reduce the maintenance challenges associated with traditional hydraulic power units (HPUs) and fluid lines.

To meet this industry shift, Saptora offers electric drive conversion solutions for both the decoking winch and rotary joint. These upgrades incorporate a proven Variable Frequency Drive (VFD) system that provides reliable operation with full online backup.

By replacing air- or hydraulic-driven systems, Saptora’s electric drive conversions eliminate leaks, reduce downtime, and enhance overall system reliability, while also removing the need for low-energy-density plant air and high-maintenance hydraulic power systems.

Features & Benefits

  • System Overview

    Proven across multiple global installations, Saptora’s electric drive system features two Variable Frequency Drives (VFDs) — one each for the winches and rotary joints. These VFDs are housed in two dedicated cabinets, typically installed in a non-hazardous area near the PLC panel to minimize wiring complexity for the end user.

    Each pair of VFDs is designed for dual-unit operation, with one serving as a redundant backup to ensure uninterrupted performance. The PLC manages unit selection and automatically engages the backup VFD in the event of a primary failure. A failure alarm notifies the operator of the switchover but does not interrupt the decoking operation, allowing the drum cut to be completed seamlessly.


    Benefits

    • Proven performance: Successfully implemented at multiple sites with smooth and efficient transition.

    • Enhanced reliability: When integrated with a frequency converter, the electric drive delivers consistent and dependable automated decoking performance.

    • Comprehensive testing: Every system undergoes full functional and load testing, verifying the performance of the electric winch, motor/brake, and VFD controls for trouble-free on-site commissioning.

    • Precision control: Continuous feedback from the electric motor to the VFD ensures full speed and torque control throughout operation.

    • Operator insight: The VFD control panel interfaces with the PLC to provide operators with real-time performance data and system status, improving monitoring and control efficiency.


Industries

  • Oil & Gas
    • Downstream Processing

Documents & Support

Related Literature

Saptora Decoking System Brochure