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Charge Pump, Pit Pump, Coke-Cutting

Pump, Crosshead, Drill Stem Drive

Hydraulic Decoking

System

RUHRP MPENUSpecialist for Pumping Technology

C: 100 %M: 50 %Y: 0 %K: 20 %

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I N N O V A T I O N

E F F I C I E N C Y

Q U A L I T Y

Overview

Hydraulic Decoking SystemCharge Pump, Pit Pump, Coke-Cutting Pump, Crosshead, Drill Stem Drive

Design Features

Delayed Coking Conventional Delayed Coking is a useful and economical refin-

ery process to convert fractions of crude oils.

Today due to many improvements in coking and decoking tech-

niques and product demands Delayed Cokers are often built to make coke. The fresh coker feed is pumped into the fractiona-tion tower and the conditioned coker feed being pumped out

from the bottom to the furnace. Furnace effluent is feeded into

the drum with the overhead vapours returning to the fractiona-

tion tower.

Delayed Coking is a process which produces gas, gas oils and

coke. The furnace provides the heat which starts the vaporisa-tion and cracking at approximately 485°

C (905°

F). As the feed enters the drum at the bottom the cracking and polymerisation

continues until solid coke is formed and the gases go overhead

to the fractionation tower. When the drum is nearly full the feed

is switched over to the second drum.

The various types of coke produced are fuel coke, sponge coke,

needle coke and shot coke.

-

-

-45° C (-49° F) to +50° C (+122° F)

normal water, seawater

According to standard of refinery

Hydraulically (preferred), electrically or pneumatically driven Hydraulic Power Unit for hoist and Drill Stem Drive

Crosshead, running in 4 pointsHeavy load wheels, Free Fall Arrestor for high safety

Gearbox for Heavy Duty Service with grease lubricated axial bearing for high load

Combination Drilling and Cutting Tool

PLC-System for Process Data MeasurementData Logging and VisualisationAutomatic Interlocking System

Control system• PLC• Process visualization• Automatic control

Valve• Isolation valve• Drain valve

Suction line• Valve• Strainer• Instrumentation

Operator panel• Panel• Cubicle• Drill stem guide plate

Pump unit• HP-Barrel-pump• Driver, gear if app.• Lube oil system

DerrickPump area

Hoist• Hoist, hydraulic, electric, pneu• Hydraulic unit• Slack rope device

Discharge line• Decoking Control valve• Pressure Bleed valve• Instrumentation

High Pressure line• HP water hose, swivel• Drill stem• Tool

Crosshead• Crosshead, Guide rails• Free Fall Arrestor• Pulley blocks

Derrick

Drill Stem Drive• Gear• Motor, hydraulic, electric, pneu• Seal cartridge

Hydraulic Decoking System

Top deheading system• Semiautomatic: flanged/bolted• Automatic: double gate valve

Bottom deheading system• Semiautomatic: flanged/bolted• Automatic: double gate valve

Pumps• Feed Pumps• Pit Pumps

AuxiliariesPlatform

RUHRP MPENU

Figure: Components of RUHRPUMPEN -


1

System calculated, designed and manufactured for the demands of the Customer

Ambient conditions

Water

Area Classification

Hoist

Drive Unit Tools

Control System

Components in the Coker unit

Ruhrpumpen™-Components


Charge Pump, Pit Pump, Coke-Cutting Pump, Crosshead, Drill Stem Drive

Pump Unit and Main Control Panel

39

45

7

8

1

10

11

12

6

1

2 Motor – (Gear) – Pump

3

4 PLC, monitoring system and operation

switches, push buttons and lamps

11

2 33

4

9 – Automated Top Unheading (optional) Device, electrically or hydraulically driven

10 – (optional) side entry connection of feedline, separate or connected to cone

11 – (optional) automatic bottom unheading system hydraulically driven, with hanger and installation system

12 – Local (Operator) Control Panel for bottom unheading system, installed in an operator shelter (op-tional), installed for close and remote operation (not shown)

1 – Hydraulically or electrically driven

2 – Hydraulic Power Unit (in case ofhydraulically driven hoists and/or Drill Stem Drive and/or Deheading System (container version) – not shown

3 – High Pressure Water line, flex-ible hose or swing pipe

4 – Local (Operator) Control Panelfree standing or installed in operator shelter (optional) one panel for one pair of drums.

– Crosshead with Free Fall Arrestor

5 – Drill Stem Drive, hydraulically or electrically driven

6 – Single and double Pulley Block equipped with instruments for rope load and tool position

7 –

–

T-type guide rails with shims, connectors, bolts and nuts with latching mechanism and proximitor switches

8

2

Drill Stem (threaded or welded), Tool (manual switch or autoswitch tool)

Hoist

HPU

HPW

LCP

CH + FFA

DSD

PB

Guide Rails

DS + Tool

TOP-Unheading Device

Feed Entry

Bottom Unheading Device

LCP

Pump Unit Pump – (Gear) – Motor unit

LOS Lube Oil System for

DCV Decoking Control Valve

MCP Main Control Panel equipped with

Cuttingdeck with details

– Guide rails – Wheels – Free Fall Arrestor – Double block

– Simulation of broken rope

– Main gear, grease lubricated – Auxiliary gear, oil lubricated – Packing cartridge – Drive with hydraulic, electric or pneumatic motor

– High gear ratio – Main gear without sealing at the Drill Stem

– Measurement of torque and speed at the Drill Stem

– Manual override for max. torque (optional for hydraulic systems)

– Cartridge system

525 bar7,800 psi

15 rpm at 350 bar/5,200 psi

Torque Leakage

45 kN (9,9 lbsf)4,500 kg (9,912 lbsf) Compact design Low noiseup to 70 m/min

(230 ft/min)

– Slim tool, diameter 13" (310 mm)

– Low lift force – Low torque – Hydrodynamic optimised channels

– Manual/automatic switch – At the top of the tool

– Ballshape valves – No seals – Pressure operated

• Centering Device

• Safety Latches

• with Vent / Chimney

• Drill Stem Guide

– Double gate / slide valve (by others)

– Electrically (preferred) or hydraulically driven

– Adapter to guide plate – Operation via RP-control system



3 4

Guide Plate

Drill Stem Drive, electric

Tool

Crosshead with Free Fall Arrestor and Drill Stem Drive, hydraulic

HoseOperator Cubicle

Latching Device

Hoist with Slack Rope Device

Pulley Block

Tool with Guide Plate

Hoist

Operator Panel Hydraulic Power Unit

Pulley Block with Instruments

Crosshead with Drill Stem Drive

Crosshead Design

Standard components of heavy

duty industry

Functional test

Drill Stem Drive

Standard components of heavy

duty industry

High torque at the Drill Stem

Control Tool Position

Favourable maintenance

Test Condition of Drill Stem Drive

Hydro test

Functionaltest

Measurement

Hoist, Hydraulically Driven

PerformancePull force

Pull speed

(Hoist)

Combination Cutting Tool

Basic design

Switching device

Valves

Guide Plate

Basic Design

Guide Plate

Dome

Guide Beams

Top Deheading

Automatic

Top Valve with Guide Plate

Barrel-Pump

Application High pressure cutting water

Performance RangeCapacity Q up to 400 m³/h up to 1,760 gpm

Head H up to 4,000 m up to 13,120 feet

Temperature t up to 150° C up to 302° F

Speed acc. to requirement

Higher heads on requirement.

Ruhrpumpen uses their ADC Barrel pump for the Hydrau -lic Decoking service. The ADC pumps line can pump �uids up to 400 m 3/h (1,760 gpm) and a height of 4.000 m (13,120 ft). These pumps are mainly used as Water-In -jection-Pumps and Jet Pumps for hydraulic decoking in re -�neries. The pumps are of signi�cantly robust and sti� construction. They are built according to the API 610, last Edition. There are special modi�cations for the individ -ual working conditions.

The pump is mostly direct driven by a motor; high -er speeds are achievable through a drive by a gear box or a steam turbine. Lube Oil System according to API 610 and/or 614 is included in the system as a standard compo -nent.

Bearings

Forced-feed oil lubricated axial and radial bearings as sleeve bearings, oil supply by lube oil pump driven by the pump shaft and/or separate lube oil unit.

Standard Materials:Casing forged carbon or

alloy steelImpeller cast steel, alloy

steelPump shaft alloy steel

Other materials on request.

Decoking Control Valve

Pump unit Lube oil system

Centrifugal Process Pumps in barrel-type design multi-stage

Hydraulic Decoking SystemCharge Pump, Pit Pump, Coke-Cutting Pump, Crosshead, Drill Stem Drive

5

Components of cutting system

Drill Stem Drive

Our drill stem drive (DSD) can normally be installed without interruption to decoking op -erations. The DSD �ts within the existing swivel envelope (+/–3") and can be adapted to existing crossheads without modi�cation to the control limit switches or mechanical stops. Additionally, should time permit, the connec -tion to the drill stem can be re -vised from a unibolt coupling to a �anged connection or FlangeLok or equal connection.

Coke Cutting Tool

Ruhrpumpen has designed and patented a new combination drilling and cutting tool.

Basic Design – Slim tool, diameter 13 " (310 mm) – Low lift force – Low torque – Hydrodynamic optimised channels

Switching Device – Manual/automatic switch – At the top of a tool

Nozzles, Cutting – 0° – 10° up both periphery nozzles

Freefall Arrestor

Ruhrpumpen has developed freefall arrestor retro�t designs which can most times be in -stalled without interruption to your decoking operations.

Features – Operational testing easily per -formed on a routine basis

– Arrestor cables and cable guides eliminated

– Cable grippers are eliminated – TÜV (UL/FM equivalent approved, over 5,000 installa -tions)

Electric

Pneumatic Hydraulic



6

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January.2011

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