Hydraulic Decoking Systems Crosshead (Free Fall Arrestor)

The crosshead and free fall arrestor unit guides and centers the rotary joint-drill stem-cutting tool assembly in the coke drum. The crosshead is designed to safely absorb all torque loads normally sustained from cutting operations.

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  • Brands:
    Flowserve
  • Applications:
    Petroleum Production and Refining, Decoking
  • Industries:
    Heavy Oil and Upgrading, Delayed Coking

Features and Benefits

  • Crossheads are available in two designs –
    • Shoe-type – Two rectangular shaped shoes which ride inside the structure’s beams
    • Wheeled-type – Four wheel blocks with spring-loaded guides in two planes ride on a track attached to the structure’s beams.
  • Free Fall Arrestor (FFA) – Ensures safe operation by preventing cutting assembly equipment from falling in the event of suspension failure. Built into the crosshead, no electric or pneumatic connections are required for activation.
    • Provides personnel and equipment safety in the event of steel wire rope failure. Prevents cutting assembly from falling and damaging the cutting deck
    • Prevents ancillary equipment damage
    • Automatically disengages upon the restoration of required rope tension
    • FFA includes cable gripping and rail gripping mechanisms as part of the standard scope of supply
  • Other crosshead and FFA components include:
    • Winch
    • Winch wire rope
    • Wire rope tension monitoring (tensiometers)
    • Lead, crown, traveling and guide blocks

 

Crosshead Application Photo

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Sistema de Equipos de Corte de Coke

Flowserve Sistema de Equipos de Corte de Coke - "Innovación del líder mundial en descarbonización hidráulica" (11" x 17")

Decoking System Equipment Innovation Poster

Flowserve Decoking Poster - Innovation from the Global Leader in Hydraulic Decoking (36" x 24")

Inovação do Líder Global em Descoqueamento Hidráulico Poster

Flowserve poster de Descoqueamento - "Inovação do Líder Global em Descoqueamento Hidráulico" (11" x 17")

Kreuzkopf und Freifallbremse

Flowserve Hydraulisches Decoking-System - Kreuzkopf und Freifallbremse

Оборудование систем гидравлического коксоудаления

Оборудование систем гидравлического коксоудаления

Hydraulische Decoking-Systeme

Hydraulische Decoking-Systeme

Equipamento para Sistemas de Descoqueamento Hidráulico

Equipamento para Sistemas de Descoqueamento Hidráulico

Equipo de sistemas de decoquización hidráulica

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Equipo de sistemas de decoquización hidráulica

Remote and Automated Hydraulic Decoking Systems

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Remote and Automated Hydraulic Decoking Systems

Decoking System Equipment Innovation Poster

Flowserve Decoking Poster - Innovation from the Global Leader in Hydraulic Decoking (11" x 17")

Crosshead and Free Fall Arrestor Bulletin

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A4

Flowserve Hydraulic Decoking System - Crosshead and Free Fall Arrestor

Hydraulic Decoking System Equipment Bulletin

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8.5 x 11
A4

Flowserve Hydraulic Decoking System Equipment

Hydraulic Decoking System Rotary Joint

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8.5 x 11
A4

Hydraulic Decoking System Rotary Joint

Pulley Blocks and Sheaves

Description: The lifting mechanism for the drill string utilizes multiple blocks and sheaves built to Flowserve specifications. Multiple sizes and load ratings are available to meet specific unit requirements.

Isolation and Bleed Valves

Description: Customized decoking ball valves are used to manage cutting water flow to the coke drums and to relieve drum pressure. The valve designs incorporate unique features that provide long life and safe operations.

Decoking Winch

Description: The decoking winch is specifically designed for use in coke cutting to raise and lower the cutting tool in the coke drums. Several unique features are incorporated to assure safe, reliable operation in the most demanding environments.

Decoking Hose

Description: Flowserve decoking hoses are designed for the harsh environment of the delayed coker. These high-pressure hoses are oil and chemical resistant and feature abrasive-resistant outer covers with multiple layers of wire reinforcement for strength and durability.

Control System

Description: The decoking operating system utilizes state-of the-art programmable controllers, monitoring equipment, and field devices with over 20 years of field-proven design techniques.

Hydraulic Decoking Systems Control Valve

Description: The Flowserve decoking control valve controls the flow from the jet pump with a single valve providing three distinct features: recirculation flow control, pre-fill and full flow to the decoking tool nozzles.

Hydraulic Decoking Systems Tensiometer / Load Cell

Description: The Flowserve compression type tensiometer replaces typical designs used for measuring cable tension. The result is a more practical load measurement system with many safety, operation and maintenance advantages.

Hydraulic Decoking Systems AutoShift™ Cutting Tool

Description: The AutoShift combination decoking tool makes remote drum decoking feasible by removing the operator from the cutting deck. Boring and cutting mode shifting is accomplished automatically and safely within the drum by water pressurization and depressurization.

Hydraulic Decoking Systems Rotary Joint

Description: The Flowserve Pacific® heavy-duty rotary joint is robustly designed to support the suspended loads experienced in coking units. Its function is to transmit cutting fluid from the stationary hose connection to the drill stem and cutting tool. Flowserve is continually upgrading its rotary joint to accommodate increasingly higher cutting pressure requirements.

Hydraulic Decoking Systems Jet Pump

Description: Built to meet or exceed ISO 13709/API 610 (BB5), latest design, the WIK is a multistage, double-case barrel pump. Its unique low specific speed hydraulics and extra heavy-duty design are especially engineered for reliable service in jet pump decoking services. The WIK is intended for special purpose, unspared, high-power density and extremely arduous conditions.

Hydraulic Decoking Systems Drill Stem Guide and Shroud Assembly

Description: The Flowserve drill stem guide and shroud can accommodate up to 305 mm (12 inches) of overall lateral misalignment. The innovative design rides on the drill stem and fully encloses the cutting tool. It diverts dangerous water flow vertically away from operators in the unlikely event a pressurized cutting tool is retracted from the drum or energized while stowed.

Hydraulic Decoking Systems Latching Mechanisms

Description: Flowserve latch mechanisms enable stowing of the crosshead when not in use, providing a safe and practical way to remove tension on the cable and winch.

Hydraulic Decoking Systems Video Monitoring System

Description: Video monitoring systems provide critical feedback to operators and are an essential part of remotely operated coke cutting systems from Flowserve.

Hydraulic Decoking Systems Audio Monitoring System

Description: Audio monitoring systems provide critical feedback to operators and are an essential part of remotely operated coke cutting systems from Flowserve.

Hydraulic Decoking Systems Coke Drum Monitoring

Description: Flowserve coke drum monitoring systems provide coke cutting personnel with positive confirmation that the coke has been removed and the cutting process can continue. The system can be integrated with the decoking control system for maximum ease-of-use or provided as a stand-alone option.

Hydraulic Decoking Systems Drill Stem

Description: Flowserve threaded drill stems are extremely durable for decoking service with a side load strength four times greater than comparable welded drill stem designs.

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