Hydraulic Decoking Systems Control Valve
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.
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- Marcas:
Flowserve - Aplicaciones:
Decoking, Petroleum Production and Refining - Industrias:
Heavy Oil and Upgrading, Delayed Coking - Normas:
- Misceláneo:
Three Distinct Functions
- Recirculation (bypass) flow control for pump protection
- Pre-fill of decoking lines, hoses, manifolds, etc., at a predetermined flow rate to prevent water hammer
- Full flow to the decoking tool nozzles. Very low pressure drop (high Kv [Cv]) in full flow for reduced energy consumption
Features and Benefits
- Cost-effective solution
- Design and maintenance simplicity with minimal moving parts
- No foundation required
Design Features
- Long Stroke, Single Stem Operation
- Assures no unwanted overlap of functions
- Non-Clogging Design
- Passes particles up to 3 mm (1/8 in)
- Compact Design
- Simplifies installation. Suitable for direct mounting on the jet pump
- Stainless Steel
- Inlaid at all gasket surfaces, option for fully lined body
- Valve Stem Sealing
- Using low friction elastomer rings. No adjustment…no packing required
- Proven, Replaceable, Durable Soft Seals
- Assures zero leakage with water and coke fines – no lapping required during repairs
- Instant Return
- To any operating mode upon command
- Actuation
- Limitorque® motor operator is standard. Optional double-acting pneumatic actuator with positioner is available with 5.5 bar (80 psi) to 7 bar (100 psi) air supply requirement
- Decoking Valve Upgrade Options
- A Flowserve decoking expert can help specify appropriate materials and design enhancements, controls and instrumentation for specific service requirements
Control Valve Application Photo
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Hydraulic Decoking Systems Crosshead (Free Fall Arrestor)
| Descripción: | 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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Pulley Blocks and Sheaves
| Descripción: | 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. |
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Hydraulic Decoking Systems Rotary Joint
| Descripción: | 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. |
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Hydraulic Decoking Systems AutoShift™ Cutting Tool
| Descripción: | 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. |
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Hydraulic Decoking Systems Tensiometer / Load Cell
| Descripción: | 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. |
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Hydraulic Decoking Systems Drill Stem
| Descripción: | 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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Hydraulic Decoking Systems Coke Drum Monitoring
| Descripción: | 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. |
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Hydraulic Decoking Systems Audio Monitoring System
| Descripción: | Audio monitoring systems provide critical feedback to operators and are an essential part of remotely operated coke cutting systems from Flowserve. |
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Hydraulic Decoking Systems Video Monitoring System
| Descripción: | Video monitoring systems provide critical feedback to operators and are an essential part of remotely operated coke cutting systems from Flowserve. |
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Hydraulic Decoking Systems Latching Mechanisms
| Descripción: | 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. |
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Hydraulic Decoking Systems Drill Stem Guide and Shroud Assembly
| Descripción: | 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. |
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Control System
| Descripción: | 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. |
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Decoking Hose
| Descripción: | 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. |
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Decoking Winch
| Descripción: | 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. |
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Isolation and Bleed Valves
| Descripción: | 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. |
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Hydraulic Decoking Systems Jet Pump
| Descripción: | 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. |
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