FO Purifier FOPX610使用手册说明书.pdf

ALFA LAVAL SEPARAT 0 NFOPX 610TFD-24Separator Manual朋1214雷童12M232 口2 盟Prndud MnSnnk MnA Alfa LavalAlfa Laval Separation AB Separator Manuals,dept.SKEL S-147 80 Tumba,SwedenTelephone:[phone]Telefax:[phone]Printed in Sweden,98-10 Alfa Laval Separation AB 1998This publication or any part thereof may not be reproduced or transmitted by any process or means without prior written permission of Alfa Laval Separation AB.Contents1 Read this first 72 Safety Instructions 93 Separator Basics 153.1 Basic principles of separation 163.2 Design and function 193.3 Definitions 304 Operating Instructions 314.1 Operating routine 325 Service Instructions 375.1 Periodic maintenance 395.2 Maintenance Logs 435.3 Check points at Intermediate Service(IS)515.4 Check points at Major Service(MS)685.5 Lifting instructions 825.6 Cleaning 835.7 When changing oil 885.8 Vibration 925.9 Common maintenance directions 946 Dismantling/Assembly 996.1 Introduction 1006.2 Inlet/outlet,frame hood(IS)1026.3 Bowl hood and disc stack(IS)1076.4 Bowl body andoperating mechanism(IS)1206.5 Operating water device(IS)13136.6 Vertical driving device(MS)6.7 Horizontal driving device(MS)1401547 Trouble-tracing 16771 FOPX mechanical functions 1687.2 FOPX separating functions 1727.3 Vibration switch(option)1758 Technical Reference 1778.1 Technical data 1788.2 Connection list 1808.3 Interface description 1828.4 Water quality 1868.5 Lubricants 1878.6 Drawings 1968.7 Storage and installation 205Index 2154Study instruction manuals and observe the warnings before installation,operation,service and maintenance.Not following the instructions can result in serious accidents.In order to make the information clear only foreseeable conditions have been considered.No warnings are given,therefore,for situations arising from the unintended usage of the machine and its tools.561 Read this firstThis manual is designed for operators and service engineers working with the Alfa Laval separator FOPX610TFD-24.For information concerning the function of the separator,see chapter 13 Separator Basics on page 15 and chapter 8 Technical Reference on page 177.If the separator has been delivered and installed by Alfa Laval as part of a processing system,this manual is a part of the System Manual.In this case,study carefully all the instructions in the System Manual.In addition to this Separator Manual a Spare Parts Catalogue,SPC is supplied.二。8900SSeparator Manual and Spare Parts CatalogueThis Separator Manual consists of:Safety InstructionsPay special attention to the safety instructions for the separator.Not following the safety instructions can cause accidents resulting in damage to eq uipment and serious injury to personnel.Separator BasicsRead this chapter if you are not familiar with this type of separator.Operating InstructionsThis chapter contains operating instructions for the separator only.71 Read this firstService InstructionsThis chapter gives instructions for daily checks,cleaning,oil changes,servicing and check points.Dismantling/AssemblyThis chapter contains step-by-step instructions for dismantling and assembly of the separator for service and repair.Trouble-tracingRefer to this chapter if the separator functions abnormally.If the separator has been installed as part of a processing system always refer to the Troubletracing part of the System Manual first.Technical ReferenceThis chapter contains technical data concerning the separator and drawings.IndexThis chapter contains an alphabetical list of subjects,with page references.82 Safety InstructionsThe centrifugal separator includes parts that rotate at high speed.This means that:Kinetic energy is high Great forces are generated Stopping time is longManufacturing tolerances are extremely fine.Rotating parts are carefully balanced to reduce undesired vibrations that can cause a breakdown.Material properties have been considered carefully during design to withstand stress and fatigue.The separator is designed and supplied for a specific separation duty(type of liq uid,rotational speed,temperature,density etc.)and must not be used for any other purpose.Incorrect operation and maintenance can result in unbalance due to build-up of sediment,reduction of material strength,etc.,that subseq uently could lead to serious damage and/or injury.The following basic safety instructions therefore apply：Use the separator only for the purpose and parameter range specified by Alfa Laval.Strictly follow the instructions for installation,operation and maintenance.Ensure that personnel are competent and have sufficient knowledge of maintenance and operation,especially concerning emergency stopping procedures.Use only Alfa Laval genuine spare parts and the special tools supplied.92 Safety InstructionsADANGERDisintegration hazards Use the separator only for the purpose and parameter range specified by Alfa Laval.If excessive vibration occurs,stop separator and keep bowl filled with liq uid during rundown.When power cables are connected,always check direction of motor rotation.If incorrect,vital rotating parts could unscrew.Check that the gear ratio is correct for power freq uency used.If incorrect,subseq uent overspeed may result in a serious break down.Welding or heating of parts that rotate can seriously affect material strength.Wear on the large lock ring thread must not exceed safety limit.（|）-mark on lock ring must not pass opposite（|）-mark by more than specified distance.Inspect regularly for corrosion and erosion damage.Inspect freq uently if process liq uid is corrosive or erosive.二EL900S二99900S102 Safety InstructionsADANGEREntrapment hazards Make sure that rotating parts have come to a complete standstill before starting any dismantling work.To avoid accidental start,switch off and lock power supply before starting any dismantling work.Assemble the machine completely before start.All covers and guards must be in place.Electrical hazards Follow local regulations for electrical installation and earthing(grounding).AWARNINGCrush hazards Use correct lifting tools and follow lifting instructions.Do not work under a hanging load.Noise hazards Use ear protection in noisy environments.二二 900S二。L900SLEgoos二 9 B o o s112 Safety InstructionsACAUTIONBurn hazardss LO Lubrication oil and various machine surfaces can be hot and cause burns.Cut hazards Sharp edges on separator discs and lock ring threads can cause cuts.g122 Safety InstructionsWarning signs in the textPay attention to the safety instructions in this manual.Below are definitions of the three grades of warning signs used in the text where there is a risk for injury to personnel.ADANGERType of hazardThis type of safety instruction indicates a situation which,if not avoided,could result in fatal injury or fatal damage to health.AWARNINGType of hazardThis type of safety instruction indicates a situation which,if not avoided,could result in disabling injury or disabling damage to health.ACAUTIONType of hazardThis type of safety instruction indicates a situation which,if not avoided,could result in light injury or light damage to health.NOTEThis type of instruction indicates a situation which,if not avoided,could result in damage to the eq uipment.132 Safety Instructions143 Separator BasicsContents3.1 Basic principles of separation 163.2 Design and function 193.2.13.2.23.2.33.2.43.2.53.2.6Overview 19Mechanical power transmission 20Sensors and indicators 21Process main parts 24Separating function 27Sludge discharge cycle 283.3 Definitions 30153.1 Basic principles of separation3 Separator Basics3.1 Basic principles of separationThe purpose of separation can be:to free a liq uid of solid particles,to separate two mutually insoluble liq uids with different densities while removing any solids presents at the same time,to separate and concentrate solid particles from a liq uid.Separation by gravityA liq uid mixture in a stationary bowl will clear slowly as the heavy particles in the liq uid mixture sink to the bottom under the influence of gravity.A lighter liq uid rises while a heavier liq uid and solids sink.Continuous separation and sedimentation can be achieved in a settling tank having outlets arranged according to the difference in density of the liq uids.Heavier particles in the liq uid mixture will settle and form a sediment layer on the tank bottom.Centrifugal separationIn a rapidly rotating bowl,the force of gravity is replaced by centrifugal force,which can be thousands of times greater.Separation and sedimentation is continuous and happens very q uickly.The centrifugal force in the separator bowl can achieve in a few seconds what takes many hours in a tank under influence of gravity.Sedimentation in a settling tank,with outlets making it possible to separate the lighter liquid parts from the heavierThe centrifugal solution163 Separator Basics3.1 Basic principles of separationSeparating temperaturesFor some types of process liq uids(e.g.mineral oils)a high separating temperature will normally increase the separation capacity.The temperature influences oil viscosity and density and should be kept constant throughout the separation.ViscosityLow viscosity facilitates separation.Viscosity can be reduced by heating.二。二。010High viscosity(with low temperature)二二10010Low viscosity(with high temperature)173.1 Basic principles of separation3 Separator BasicsDensity difference(specific gravity ratio)The greater the density difference between the two liq uids,the easier the separation.The density difference can be increased by heating.High density(with low temperature)二。二000二 6LIOOI0Low density(with high temperature)183 Separator Basics3.2 Design and function3.2 Design and function3.2.1 OverviewThe separator comprises a processing part and a driving part.It is driven by an electric motor(9).Mechanically,the separator machine frame is composed of a bottom part,a top part and a frame hood.The motor is flanged to the frame as shown in the illustration.The frame feet(6)are vibration damping.The bottom part of the separator contains the horizontal driving device(4),driving shaft with couplings(7,8),a worm gear(5)and a vertical spindle(3).The bottom part also contains an oil bath for the worm gear,a brake and a revolution counter.The frame top part and the frame hood contain the processing parts of the separator,the inlet,outlets and piping(1).The liq uid is cleaned in the separator bowl(2).This is fitted on the upper part of the vertical spindle and rotates at high speed in the space formed by the frame top part and frame hood.The bowl also contains the discharge mechanism which empties the sludge from the bowl.The main inlets and outlets are shown with connection numbers in the illustration.These numbers correspond with the numbers used in the connection list and the basic size drawing which can be found in chapter u8 Technical Reference on page 177.二CO089。1.Inlet and outlet device2.Bowl3.Vertical driving device with bowl spindle4.Horizontal driving device5.Worm gear6.Frame feet7.Friction coupling8.Elastic coupling9.Electric motor2O1.Dirty oil inlet206.Displacement/conditioning water inlet220.Clean oil outlet221.Water outlet222.Sludge discharge outlet372.Bowl opening water inlet376.Bowl closing and make-up water inlet193.2 Design and function3 Separator Basics3.2.2 Mechanical power transmissionThe main parts of the power transmission between motor and bowl are illustrated in the figure.The friction coupling ensures a gentle start and acceleration and at the same time prevents overloading of the worm gear and motor.The worm gear has a ratio which increase the bowl speed several times compared with the motor speed.For correct ratio see chapter u8.1 Technical data on page 178.To reduce bearing wear and the transmission of bowl vibrations to the frame and foundation,the top bearing of the bowl spindle is mounted in a spring casing.The worm wheel runs in a lubricating oil bath.The bearings on the spindle and the worm wheel shaft are lubricated by the oil splash produced by the rotating worm wheel.I-127.Bowl spindle2.Top bearing and spring casing3.Worm wheel4.Worm5.Friction coupling6.Worm wheel shaftBrakeThe separator is eq uipped with a brake to be used when stopping the separator.The use of the brake reduces the retardation time of the bowl and critical speeds will therefore be q uickly passed.The brake lining acts on the outside of the coupling pulley.Applying(on)and releasing(off)of brake203 Separator Basics3.2 Design and function3.2.3 Sensors and indicatorsRevolution counter(1)A revolution counter indicates the speed of the separator and is driven from the worm wheel shaft.The correct speed is needed to achieve the best separating results and for reasons of safety.The number of revolutions on the revolution counter for correct speed is shown in chapter“8 Technical Reference on page 177.Refer to name plate for speed particulars.Sight glass The sight glass shows the oil level in the worm gear housing.Indicating pressure gauge(3)During normal operation,the indicating pressure gauge in the water outlet will indicate pressure of less than 1 bar.If the pressure increases and exceeds 1 bar,this indicates abnormal operating conditions for the separator caused by:increased back pressure in the clean oil outlet,clogged disc stack.See also chapter“726 High pressure in water outlet on page 174.1.Revolution counter2.Sight glass3.Indicating pressure gauge4.Sight glass wiper5.Back pressure gauge6.Vibration switch(option)7.Cover interlocking switch(option)二58900Sight glass wiper(4)Cleaning of the sight glass for separated water has to be done freq uently.The advantages of the wiper are:it is not necessary to stop the separator in order to be able to clean the glass.water contents in the oil can be checked at a glance.poor performance of the separator can be checked;i.e.no water separated out.Clean the sight glass by turning it around the scraper二 ZCOO9O0213.2 Design and function3 Separator BasicsBack pressure gauge(5)Correct limits for the back pressure in the clean oil outlet can be found in chapter u8.2 Connection list on page 180.Increasing back pressure in the clean oil outlet can be caused by:restriction in the outlet piping,e.g.a buckled or bent pipe,increased throughput,increased viscosity,decreased separating temperature.Vibration switch(6,option)The vibration switch,properly adjusted,trips on a relative increase in vibration.The vibration switch is sensitive to vibration in a direction perpendicular to its base.It contains a vibration detecting mechanism that actuates a snap-action switch when the selected level of vibration is exceeded.After the switch has tripped it must be reset manually by pressing the button on the switch.Reset push button on vibration switchCover interlocking switch(7,option)When req uired,the cover interlocking switch should be connected to the starter eq uipment so that starting of the motor is prevented when the separator hood is not(completely)closed.223 Separator Basics