Tetra Pak Tetra Centri A610HGD-14C, Operator'S Manual

Page 1: ... a P a k P r o c e s s i n g C o m p o r t s Operator s Manual Tetra Centri Self cleaning Hermetic Separators A610HGD 14C H 610HGD 74C Product No 881154 03 01 881154 01 03 Book No 1271703 02 Rev 2 A Tetra Pak ...

Page 2: ... r a P a k P r o c e s s i n g C o m p o n e n t s Operator s Manual Tetra Centri Self cleaning Hermetic Separators A610HGD 14C H 610HGD 74C Product No 881154 03 01 2 881154 01 03 2 Book No 1271703 02 Rev 2 ...

Page 3: ...ba Sweden Telephone 46 8 530 650 00 Telefax 46 8 530 310 40 Printed In Sweden 01 06 Alfa Laval Tumba AB 2001 This publication or any part thereof nnay not be reproduced or transmitted by any process or means without prior written permission of Alfa Laval Tumba AB ...

Page 4: ...s 19 3 1 Basic principles 20 3 2 General 21 3 3 Throughput 22 4 Mechanical function 23 4 1 Power transmission 24 4 2 Brake 25 4 3 Sensors and indicators 26 4 4 Outlet inlet 28 4 5 Axial seals cooling system 29 4 6 Bowl 31 5 Sediment discharge function 33 5 1 Function description 34 6 Installation and first start 37 6 1 Preparations 38 6 2 Before first start 39 6 4 Operation 40 6 5 stopping 41 6 3 ...

Page 5: ...ompressed air 63 11 Interface description 65 11 1 General 66 11 2 Definitions 66 11 3 Component description and signal processing 67 11 4 Interconnection diagram for monitoring kit 72 12 Technical reference 73 12 1 Technical data 74 12 2 In and outlet pressures 76 12 3 Bowl sealing diagram 77 12 4 Basic size drawing 78 12 5 Connection list 81 12 6 Foundation drawing 84 12 7 Electric motor 86 12 8 ...

Page 6: ...on 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 ...

Page 7: ...m ...

Page 8: ...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 subsequently 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...

Page 9: ...rrect vital rotating parts could unscrew Check that the gear ratio is correct for power frequency used If incorrect subsequent 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...

Page 10: ... 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 A WARNING Crush hazards Use correct lifting tools and follow lifting instructions Do not work under a hanging load Noise hazards Use ear protection in noisy environments ...

Page 11: ...1 Safety Instructions A CAUTION Burn hazards Lubrication oil and various nnachine surfaces can be hot and cause burns Cut hazards Sharp edges on separator discs and lock ring threads can cause cuts 10 ...

Page 12: ...ich if not avoided could result in fatal Injury or fatal damage to health A WARNING Type of hazard This type of safety instruction indicates a situation which if not avoided could result in disabling Injury or disabling damage to health A CAUTION Type of hazard This type of safety instruction indicates a situation which if not avoided could result in light injury or light damage to health NOTE Thi...

Page 13: ...7K 1 Safety Instructions 12 ...

Page 14: ...2 General information Contents 2 1 Foreword 14 2 2 Identification and safety signs machine A 610HGD 14C 15 2 3 Identification and safety signs machine H 610HGD 74C 17 13 ...

Page 15: ...operate the machine and to achieve satisfactory separating results with regard to existing safety precautions and with supplementary operating routine A manual should always be available near the place of operation Keep Operating routine Lubrication Schedule etc easily visible Let all operating personnel read the manual It is important to be familiar with the Safety Precautions The manufacturing c...

Page 16: ... top part Outlet Bowl Machine bottom part Max speed bowl Direction of rotation bowl Speed motor shaft El current frequency Recommended motor power Max density of feed Max density of sediment Max density of operating liquid Process temperature min max A610HGD 14C XXXX 881154 03 01 548940 01 548931 03 561182 01 549501 05 06 50 Hz 60 Hz 6240 6235 r min 50 Hz 60 Hz 1500 1800 r min 50 Hz 60 Hz 50 Hz 60...

Page 17: ...ions can lead to fatal injury If excessive vibration occurs stop separator and keep bowl filled with liquid during rundown Out of balance vibration will become worse if bowl is not full Separator must stop rotating before any dismantling work is started A iglHSigl t vs6ses6 g S M W W W 4 Name plate Tetra Pak A Tetra Pak 6 Arrow indicating direction of rotation 8 Frequency label 50 Hz 160 Hz Space ...

Page 18: ...art Outlet Bowl Machine bottom part Max speed bowl Direction of rotation bowl Speed motor shaft El current frequency Recommended motor power Max density of feed Max density of sediment Max density of operating liquid Process temperature min max H 610HGD 74C XXXX 881154 01 03 548940 01 558820 01 549514 01 02 549501 01 02 50 Hz 60 Hz 6240 6235 r min 50 Hz 60 Hz 1500 1800 r min 50 Hz 60 Hz 50 Hz 60 H...

Page 19: ...ve vibration occurs stop separator and keep bowl filled with liquid during rundown Out of balance vibration will become worse if bowl Is not full Separator must stop rotating before any dismantling work is started m A igiliiifgi m t jsaas sssssesssaasasissss owowwwowww VBBBSSSSa mmmt sssssesssaasasissss owowwwowww VBBBSSSSa 4 Name plate Tetra Pak A Tetra Pak 6 Arrow indicating direction of rotatio...

Page 20: ...ration process Contents 3 1 Basic principles 20 3 1 1 Separation by gravity 20 3 1 2 Centrifugal separation 20 3 2 General 21 3 3 Throughput 22 3 3 1 Light phase 22 3 3 2 Air penetration inlet pressure 22 19 ...

Page 21: ...while the heavier sinks Continuous separation and sedimentation can be achieved in a settling tank having the outlets arranged at levels suited to the density ratio of the two liquid phases Any solids and heavier particles in the liquid mixture will settle and form a sediment layer on the tank bottom 3 1 2 Centrifugal separation In a rapidly rotating vessel the gravity is replaced by the centrifug...

Page 22: ... The light phase is forced along the upper sides of the discs towards the bowl centre leaves the bowl and is reforwarded by the impeller 5 The rest heavy phase and sediment moves along the undersides of the discs towards the bowl periphery where the sediment settles in the sediment space 6 The heavy phase continues along the upper side of the top disc 7 to the impeller 8 which effects the further ...

Page 23: ...ays give the same light phase flow With higher counter pressure in the light phase outlet pipe the light phase concentration will be higher A Light phase B Heavy phase 3 3 2 Air penetration I inlet pressure A prerequisite for satisfactory separation is that air is prevented from mixing with the process liquid Air penetration can occur for instance if the pressure in front of the inlet device is to...

Page 24: ...ction Contents 4 1 Power transmission 24 4 2 Brake 25 4 3 Sensors and indicators 26 4 4 Outlet inlet 28 4 4 1 Outlet pumps 28 4 4 2 Inlet device 28 4 4 3 Axial seals 28 4 5 Axial seals cooling system 29 4 6 Bowl 31 23 ...

Page 25: ...ing water inlet outlet for coil security during maintenance to have a disconnection switch installed visible from the separator The motor 1 rotates the bowl through the coupling 2 and the worm gear 6 7 The worm gear serves to adapt the bowl speed to the motor speed The number of revolutions of the bowl is a few times higher than that of the motor The bearings on the bowl spindle 5 and the worm whe...

Page 26: ... has a flexible coupling and for this reason the motor must be able to endure long run up times For this purpose the separator is equipped with a motor of frequency drive type which is similar to a standard three phase motor The long running up time Is however controlled by a frequency converter To require further information on frequency drive see 12 8 Guidelines for frequency converter drives on...

Page 27: ...allowed to vary within speed limits described in chapter 11 3 Component description and signal processing on page 67 The bracket for the speed sensor 2a and the junction box 2c are prepared for an optional speed sensor 2b if needed Vibration sensor 3 option The vibration sensor is of velocity type The signal must be converted to a signal usable in the control system When any of the two limit value...

Page 28: ...n 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 12 1 Technical data on page 74 The revolution counter should turn clockwise 27 ...

Page 29: ...e required inlet pressure is obtained directly from the supply pipe of the separator If necessary an external pump can be located before the separator 4 4 3 Axial seals The connection of the inlet and outlets to the bowl is made airtight hermetic by means of axial seals There are three seals for the outlets and one for the inlet 1 Coil spring 2 O ring 3 Support for wear ring 4 L shaped rubber 5 We...

Page 30: ...ons 2 and 3 The cooling water from the outlet seals discharges through the sediment outlet 4 and pipe 7 From the inlet seals the water flows out through outlet 5 Water pressure and flow see 12 5 Connection list on page 81 1 6 Cooling coil for oil bath 2 3 Cooling water inlet 4 Sediment outlet cooling water outlet 5 7 Indication tube for cooling water 9 Valve 10 Valve Nornnally included in the cont...

Page 31: ... be due to leaking axial seals In cases of major leakage the seals must of course be inspected and possibly replaced See Maintenance and flepa r manual Minor discoloration from possible seal leaks may occur for a short time especially when new seals have been installed This does not affect the running of the machine m M M During cleaning CIP To clean the space around the seals it is best to draw o...

Page 32: ...sediment ejections are effected are those numbered 10 14 in the list above The bowl body 1 and the bowl hood 2 which make up the casing of the bowl are held together by the large lock ring 3 Housed in the bowl are the distributor 5 the distributing cone 8 and the disc stack 6 where the separation takes place Uppermost in the disc stack is the top disc 7 NOTE Replacement of certain parts necessitat...

Page 33: ...4 6 Bowl 4 Mechanical function 32 ...

Page 34: ...5 Sediment discharge function Contents 5 1 Function description 34 33 ...

Page 35: ...ction description 1 The operating water supply pressure is increased for about 3 seconds The dosing ring chamber is filled above the operating slide When the inflow of operating water exceeds the outflow through the nozzle an increase in liquid force will occur 34 ...

Page 36: ...nderneath the sliding bowl bottom is emptied and the force directed upwards becomes less than that directed downwards The sliding bowl bottom moves downwards and sediment ejection will take place through the discharge openings in the bowl wall As soon as the level in the dosing ring chamber above the operating slide reaches the ducts operating water begins to flow into the space underneath the ope...

Page 37: ...rced upwards and the discharge openings are closed When the flow of operating water from the underside of the sliding bowl bottom has ceased the sliding bowl bottom will begin to close The outflow from the dosing ring chamber takes place through the nozzles The space underneath the sliding bowl bottom also the separating space above it become filled thus restoring the original equilibrium of force...

Page 38: ...6 Installation and first start Contents 6 1 Preparations 38 6 2 Before first start 39 6 3 First start 40 6 4 Operation 40 6 4 1 Cleaning 41 6 4 2 Separation 41 6 4 3 Operation 41 6 5 Stopping 41 37 ...

Page 39: ...rt out of the holes in weak jets During operation there will be no consumption of water when the pressure is lower than 50 kPa 0 5 bar At discharge water shall squirt out of the holes in powerful jets 4 Check that the water flow rates correspond to data in 12 5 Connection list on page 81 Water for lubrication oil cooler 409 Water for discharge 372 Water for cooling frame parts 405 and 406 NOTE Pre...

Page 40: ... for oil Assemble the bowl and the inlet and outlet parts as described in the Maintenance and Repair manual Make sure that the frame hood bolts have been tightened Make sure that the bolts for centering ring and outlets have been tightened to the correct torque See Maintenance and Repair manual Make sure that the bolts for the inlet device have been tightened Check that water and air are being sup...

Page 41: ...volution counter 6 4 Operation With the bowl closed supply water to the bowl start the feed pump Make sure that the separation inlet pressure is suitable and the throughput correct Then check outlet pressures Shut off the cooling water to the axial seals Check that the bowl is tightly closed no water in the cyclone outlet Disconnect the pipes for cooling water to the outlet seals Check for possibl...

Page 42: ...his should always be kept filled The process liquid should flow evenly in the vessel without bubbling After separation is completed carry out the cleaning programme Dismantle the bowl and check the cleaning 3 4 days after the first operation with product 6 5 Stopping The control system actuates the brake when stopping the separator Cooling water to the axial seals and air to the brake will be turn...

Page 43: ...6 1 P r e p a r a t i o n s 6 Installation and first start 42 ...

Page 44: ...7 Cleaning Contents 7 1 Check of cleaning disc pressure 44 7 1 1 Cleaning 44 7 1 2 Disc pressure 45 43 ...

Page 45: ...scs indicate bad cleaning NOTE A greyish film but not containing process liquid residues may also occur on the discs if the lye has been circulated after the acid To remove the film an extra run with acid for about 10 minutes is recommended If the bowl turns out to be badly cleaned check the temperature and concentrations of the acid and lye Correct any deviations from the recommended values Do no...

Page 46: ...the lock ring is directly opposite the corresponding mark on the bowl hood Bad bowl running vibration may be the result If so one or more extra discs must be added to the disc stack Extra discs must be located under the thick caulked discs See the Maintenance and Repair manual NOTE Insufficient compression of the disc stack can affect the bowl balance causing abnormal vibration of the machine 45 ...

Page 47: ...7 1 Check of cleaning disc pressure 7 Cleaning 46 ...

Page 48: ...8 Operating routine Contents 8 1 Checkpoints 48 8 1 1 Before start 48 8 1 2 Start and run up 48 8 1 3 Separation 49 8 1 4 Cleaning 49 8 1 5 Stop 50 47 ...

Page 49: ...he hook bolts of the outlet the screws of the frame hood and the centering ring are all tightened 2 Check that Inlet device is tightened 3 Check the oil level 8 1 2 Start and run up 4 Start the separator 5 Check the direction of rotation of the bowl see revolution counter OFF START 0 48 ...

Page 50: ...heck that the machine has correct inlet and outlet pressures Check the throughput Make sure that air is not sucked into the feed line 8 1 4 Cleaning Cleaning of machine after separation is imperative 8 When rinsing with water set the programme selector to CIP WATER Discharges will now follow at preset intervals When washing with detergent set the programme selector to CIP LYE ACID Discharges will ...

Page 51: ... automatically until the bowl has stopped 9 Stop the separator The brake is automatically energized The cooling water is shut off and the brake is disengaged automatically when the bowl has stopped A WARNING A Do not loosen any parts on the machine until the bowl has stopped completely the revolution counter is at a stand still A DANGER Emergency stop If the machine begins to vibrate during operat...

Page 52: ...9 Trouble tracing Contents 9 1 Mechanical function 52 9 2 Sediment discharge 55 9 3 Axial seals 59 51 ...

Page 53: ... motor Motor stops during start up due to overheating Thermistor relay trips due to repeated starts of motor Remove motor hood Allow motor to cool down at least 3 hours if no extra fan cooling Unusually long running up period Relay in starter has not switched over from star to delta Check setting of relay For correct times see Data sheet Unusually long running up period or starting current too hig...

Page 54: ...ting and stopping periods is normal Operation CIP Machine vibrates vibration alarm Low level Bowl out of balance due to bad cleaning incorrect assembling bad tightening of lock ring bowl assembled with parts from several bowls heavyside Establish the cause at next stop Machine vibrates vibration alarm Low level Vibration dampers worn Establish the cause at next stop Machine vibrates vibration alar...

Page 55: ... 55 Water in worm gear housing Condensation Water in worm gear housing Leakage of oil cooling coil Change or repair the coil Stopping Braking time too short Pressure of air to brake is too high Check Remedy Braking time too short Bowl is leaking See 9 2 Sediment discharge on page 55 Braking time too short Motor defect Check Remedy Braking time too short Defect in driving device Check Remedy Brakin...

Page 56: ...s Make up water pressure too low Check pressure and remedy Ejection too large more than half bowl volume Change discharge volume another dosing ring Control paring disc device clogged or incorrectly fitted Dismantle the bowl Check that operating water is being ejected through the holes in the paring disc Leakage at distributing cover for operating water Tighten the screws Change defective seals Le...

Page 57: ... for discharge programme equipment Opening time too short Extend the time Control paring disc device clogged or incorrectly fitted Dismantle the bowl Check that operating water is being ejected through the holes in the paring disc Leakage at distributing cover for operating water Tighten the screws Change defective seals Operating slide for bowl seizes Dress clean and lubricate Sliding bowl bottom...

Page 58: ... Reduce the pressure Bowl opens unintentionally during operation or uncontrolled ejection Leakage at distributing cover for operating water Tighten the screws Change defective seals Bowl opens unintentionally during operation or uncontrolled ejection Leakage between valve plugs in operating slide and sealing faces of bowl body Change valve plugs and or dress sealing faces Bowl opens unintentionall...

Page 59: ...uantity too large smalt Operating slide springs are defective Change Ejected quantity too large smalt Sliding bowl bottom seizes Check guides Lubricate Ejected quantity too large smalt Clogged drain nozzle in operating slide poor drainage Clean Ejected quantity too large smalt Leakage at seal ring of operating slide against bowl body Change seal ring Ejected quantity too large smalt Seal ring of s...

Page 60: ...t Inlet seal is leaky Exchange the seal See also below Leaky seals Normal wear Separator has been run without contact between seals and liquid Seals must never run dry Always check that liquid is fed to the seals Deposits have formed on seals because of insufficient cleaning programme Adjust the cleaning programme Bowl is out of balance See Machine vibrates vibration alarm on page 53 Frame hood is...

Page 61: ...9 3 Axial seals 9 Trouble tracing 60 ...

Page 62: ...10 Demand specification Contents 10 1 Service water 62 10 2 Compressed air 63 61 ...

Page 63: ...sponds to10 dHor12 5 E Hard water may with time form deposits in the operating mechanism The precipitation rate is accelerated with increased operating temperature and low discharge frequency These effects become more severe the harder the water is 3 Chloride content max 100 ppm NaCI equivalent to 60 mg Cl I Chloride ions contribute to corrosion on the separator surfaces in contact with the operat...

Page 64: ...tion takes place at various rates depending on the moisture content at the air inlet the temperature before and after the compressor partially lower temperature in any cold zone passed by the pipe outdoor cellar etc and the like The air must thus be dried with regard to the lowest temperature existing after the drying device so that condensate in the instruments is avoided Note that the air will a...

Page 65: ...10 2 Compressed air 10 Demand specification 64 ...

Page 66: ... description Contents 11 1 General 66 11 2 Definitions 66 11 3 Component description and signal processing 67 11 3 1 Function graph and running linnitations 71 11 4 Interconnection diagram for monitoring kit 72 65 ...

Page 67: ...sembled correctly All connections are installed according to Connection list Motor drive data Interconnection diagram and Interface description Start means The power to the separator is on The acceleration is supervised to ensure that a certain speed has been reached within a certain time See Motor Drive Data The start procedure continues until the Y D switch over has been made and a stabilization...

Page 68: ...the plant the machine must be stopped in a way that is described in EN 418 11 3 Component description and signal processing Hydraulic connections Discharge valve 375 Signal processing The control system shall contain a memory function for registration of the number of initiated discharges At indication of the absence of a discharge the operator or the control system must initiate a new discharge A...

Page 69: ...connected in series and should be connected to a thermistor relay that trips the starting equipment when the temperature exceeds the tripping level stated in the Connection list Speed sensor 741a Proximity sensor of inductive type PNP or NAMOUR standard giving number of pulses per revolution of the motor shaft See 12 5 Connection list on page 81 The bowl speed is gear ratio see 12 1 Technical data...

Page 70: ...pped automatically according to Safety stop procedure with a timer controlled stop sequence and an alarm for speed sensor failure shall be given Vibration sensor 750 optional As an option the separator can be equipped with a vibration sensor The vibration sensor is of velocity type The signal has to be converted in a special transducer in which the signal is compared with preset limit values When ...

Page 71: ...ase of a signal exceeding set point for Immediate safety stop during 3 seconds Following actions must be taken Immediate safety stop of the machine including alarm for too high vibrations Cover interlocking switch 760 optional As an option the separator can be equipped with an interlocking switch When the cover is closed the interlocking circuit in the control system is closed and the separator co...

Page 72: ...11 Interface description 11 3 Component description and signal processing 11 3 1 Function graph and running limitations A Standstill B Starting mode C Running mode D Stop mode E Safety stop mode 71 ...

Page 73: ... L J O 0 74h 74 b PNP I 5 5 u u r n tl A L J L S 0 0 J o O 6 z O s 1 D tci e t 1 741 ij NAMUR Wire colour codes BK Black BN Brown BU Blue GN YW Green yellow SIG Signal 741a Speed sensor motor shaft speed NAMOUR or PNP type 741b Speed sensor motor shaft speed NAMOUR or PNP type 750 Vibration sensor velocity transducer 760 Interlocking switch frame top part Normally open when cover not fitted 72 ...

Page 74: ...n and outlet pressures 76 12 3 Bowl sealing diagram 77 12 4 Basic size drawing 78 12 5 Connection list 81 12 6 Foundation drawing 84 12 7 Electric motor 86 12 8 Guidelines for frequency converter drives 88 12 8 1 Frequency converter 88 12 8 2 Electric motor 93 73 ...

Page 75: ...ature 0 Cto 100 C Ambient temperature 5 C to 45 C Discharge intervals 1 60 minutes Maximum allowed density of operating liquid 1000kg m3 Basic demands for PX sealing not fulfilled Only land based installations are permitted Separator bowl must be kept filled during stopping sequence Use of the machine in applications subject to hygienic demands requires an well adapted cleaning program Risk for co...

Page 76: ...ping time with brake 6 5 7 Stopping time without brake 18 Sound power sound pressure level 9 1 74 Vibration level max 7 1 9 Alarm levels for vibration monitor 9 1 4 connection 750 Volume of bowl 10 Bowl max inner diameter 405 Weight of bowl 274 Weight of separator 1021 Bowl body material AL 111 2377 There are no other materials than stainless steel in sealings and gaskets r min 50 Hz 60 Hz r min 5...

Page 77: ...0 kPa Diagram for H 610HGD 74C B kPa 1000 900 800 700 600 500 400 300 200 100 0 P A OOkPn OOkna 2 Oki P3 P4b OkP 3kP a F200 kPa DOkl 10 15 20 25 A m h Light phase Heavy phase The constant inlet pressure directly before the separator as shown in the illustration A Inlet flow B Outlet pressure for light and heavy phase The curves have been obtained when operating with water and when 10 of the total ...

Page 78: ...of the density of the solid particles only The X axis shows the density of the feed The triangular area called the Operational envelope illustrates the permissible combinations of densities where no leakage should occur ps Sediment density kg m pf Feed density kg m 1 Admitted operational area 2 Sealing not possible within this area 3 Non physical area feed density higher than sediment density A Ma...

Page 79: ...val ref 549929 rev 3 1480 1370 80 n R T i g r J 1 P n r n r n r n 370 I W W 370 830 1510 B i 560 214 _42Q_ 225 625 810 c D E F 097 6 2 t 0 48 5 j Rd70 6 220 W J S T L ZSO G S ISO GVt U J5 l so G ISO G 0 6 0 5 jasp Rd85 6 615 630 635 221 201 ISO G Va J L so C a ISO G a 010 631 78 ...

Page 80: ...B Maximum vertical displacement at the cyclone connection during operation 10 mm C Tightening torque 100 Nm D Adjusting washers max 4 pcs foot E Nut DN 101 6 SMS 1148 F Stainless steel Connections 201 220 and 221 turnable 360 All connections to be installed non loaded and flexible Data for connections see 12 5 Connection list on page 81 79 ...

Page 81: ...12 4 Basic size drawing 12 Technical reference 80 ...

Page 82: ...4 hours 304 Flushing in sediment outlet Consumption Approx 10 litres discharge 372 Inlet for discharge liquid Consumption Pressure Time See 10 1 Service water on page 62 Approx 0 4 litres discharge 200 kPa Min 0 7 sec max 4 8 sec 376 Inlet for make up liquid Consumption Pressure See 10 1 Service water on page 62 Max 10 litres discharge Min 30 kPa max 50 kPa 405 Inlet for cooling liquid frame top C...

Page 83: ...aling liquid between media and ambient area at hollow spindle Consumption See 10 1 Service water on page 62 60 80 litres h 616 Outlet for sealing liquid between media and ambient area at hollow spindle Free outlet without water trap 630 Inlet for sealing liquid between media at hermetic top Consumption See 10 1 Service water on page 62 60 80 litres h 631 Outlet for sealing liquid between media at ...

Page 84: ...pe For technical data see 11 Interface description on page 65 Inductive proximity switch 750 Unbalance sensors vibration option Type For technical data see 11 Interface description on page 65 Velocity transducer 760 Cover interlocking switch option Type For technical data see 11 Interface description on page 65 Mechanical switch 83 ...

Page 85: ...12 4 Basic size drawing 12 Technical reference 12 6 Foundation drawing Alfa Laval ref S49928 rev 2 00 A B 7 711 h 1 990 500 230 I B80 _48Q_ F 395 130 H 1400 N i_ 2100 Uln n I 700 min 2800 2100 280Q 84 ...

Page 86: ... E 3 holes M20 for horizontal adjustment F 7 holes 020 for anchorage G Center of motor H Center for lifting device I Installation acc to stated foundation forces J Floor level K Expanding concrete L Structural concrete M Anchor bolt N Service side Recommended free floor space for unloading when doing service 0 No fixed installations within this area Vertical force not exceeding 20 kN foot Horizont...

Page 87: ...e extra lubrication plate for mounting on the motor protecting hood G Drain holes 08 For horizontal mounting IM 3001 the motor has to be mounted with the drain holes facing downwards H M20x42deep Relubrication instructions Mounting Motor speed synchronous r min Reiubrication inter ambient tenr max D end als in hours when iperature is W C ND end Grease c grams pe D end quantity r bearing ND end Typ...

Page 88: ... 01 lEC 34 6 Mean sound pressure level 70 dB A at 50 Hz and 74 dB A at 60 Hz Tolerance 3 dB A Balanced with half key quality grade N acc to ISO 2373 max 2 8 mnn s rms The motor is equipped with grease nipples Relubrication information to be found on separate plate on the motor frame and in the table Relubrication instructions 155 C Drip proof 3 phase induction motor for frequency converter drive T...

Page 89: ...cables and therefore reduces costs for the electrical installation 2 A standard motor can be used this too reduce costs 3 No torque surges during start which leads to reduced load on the mechanical transmission 4 No current transients during start which leads to reduced load on the power supply system This document presents guidelines primarily for the choice and installation of frequency converte...

Page 90: ...discharge takes place i e within the period between consecutive discharges Output frequency The converter shall be set to the output frequency 50 or 60 Hz which applies for the corresponding separator A DANGER Disintegration hazard It is of utmost importance that this setting has to be double checked A faulty frequency setting can lead to overspeed with risk of a major breakdown It shall not be po...

Page 91: ...t is required that the separator shall be stopped within a given time The separator s own mechanical brake can be used to stop the separator 2 If controlled stopping is required then the separator is braked using a braking chopper which is a part of the frequency converter and an external braking resistor Braking is carried out according to an adjusted braking ramp the braking chopper and braking ...

Page 92: ...mmunication with the separator s control system The separator s control system shall be connected to the frequency converter so that start and stop of the separator can be initiated from the control panel Furthermore the control system shall monitor the separator speed via a speed sensor mounted in the separator The control system shall stop the separator if the speed should exceed or fall below t...

Page 93: ... s terminal box are made of metal so that required shielding can be obtained To reduce circuit bound electrical disturbances to the power supply the converter shall be supplied with a power supply filter 2 Immunity The signal outputs and the control connections of the converter shall conform to the requirements for immunity to electromagnetic disturbances as stated in the EMC directive or correspo...

Page 94: ...th between motor and converter At supply voltage 660 to 690 V a motor with reinforced winding insulation shall be chosen Thermal protection in motor CT motors used by Alfa Laval are provided with thermistors in the stator windings these shall therefore be connected to the motor s monitoring equipment when frequency converter drive is used If however a standard motor is used then it is recommended ...

Page 95: ...12 8 Guidelines for frequency converter drives 12 Technical reference 94 ...

Page 96: ...l Tumba AB Separator Manuals dept PPDM SE 147 80 Tumba Sweden Fax 46 8 530 310 40 Your name Address Country Company City Product Date A610HGD 14C Book No 1271703 02 Rev 2 Yes No Is it easy to find what you are looking for by using the table of contents Are the chapter and section headings clear and adequate Is the information presented in the correct order for your purposes Does the information in...

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Page 98: ...it to your local Alfa Laval representative who will advise you of current prices Your local Alfa Laval representative will also be able to help you with information regarding any other manuals Your name Address Country Company City Product Quantity H610HGD 74C Book No Date 1271703 02 Rev 2 97 ...

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Page 100: ...A Tetra Pak ...