BUSCH DOLPHIN LR Instruction Manual Download Page 1

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DOLPHIN LR

Liquid Ring Vacuum Pumps
LR 0110 A, LR 0140 A, LR 0210 A, LR 0300 A
LR 0420 A, LR 0580 A

Instruction Manual

0870237638 | -0001_en-US | Original instructions

9/21/2022

Summary of Contents for DOLPHIN LR

Page 1: ...ical data instruction manuals service kits DOLPHIN LR Liquid Ring Vacuum Pumps LR 0110 A LR 0140 A LR 0210 A LR 0300 A LR 0420 A LR 0580 A Instruction Manual 0870237638 0001_en US Original instructions 9 21 2022 ...

Page 2: ...uction Connection 12 5 2 2 Discharge Connection 12 5 2 3 Operating Liquid Connection 13 5 3 Operating Liquid Settings 14 5 4 Fitting the Coupling 17 6 Electrical Connection 18 6 1 Machine delivered without Control Box or Variable Speed Drive VSD 18 6 2 Machine delivered with a Variable Speed Drive Option 19 6 3 Wiring Diagram Three Phase Motor 19 7 Commissioning 21 7 1 Preventing Cavitation 22 8 M...

Page 3: ... to state of the art methods Never theless residual risks may remain as described in the following chapters and in accordance with the chapter Intended Use 8 This instruction manual highlights potential hazards where appropri ate Safety notes and warning messages are tagged with one of the keywords DANGER WARNING CAUTION NOTICE and NOTE as follows DANGER indicates an imminent dangerous situation t...

Page 4: ... Description 4 40 Instruction Manual DOLPHIN LR 0110 0580 A_EN_en 2 Product Description DOLPHIN LR 0110 A LR 0300 A OUT IN OPO SSI SSI OPI IDS DOLPHIN LR 0420 A LR 0580 A OUT IN AOUT OPO AOUT AIN SSI OPI AIN IDS ...

Page 5: ... installations where gas and liquid are discharged to open gutter both connections open Supplied only when no internal flushing 1 2 3 4 OUT OUT OUT OPO OUT OPO DC DC DC DC IN IN IN IN MKU OVF MKU OVF IDS GV PG SSC SSI CG OPC OPI ADV OPD GPD ICV SV LLI HX Description ADV Automatic drain valve CG Compound pressure gauge DC Drain connection GPD Gland packing drain GV Vacuum gauge HX Heat exchanger IC...

Page 6: ...equired to be recycled If the working liquid is recirculated in the system as shown in figure 3 then a heat exchanger should be used for cooling the liquid Figure 4 option for LR 0420 A and LR 0580 A only shows the arrangement where gas and water leave from the side flange of the vacuum pump and discharge directly into the gutter NOTICE If applying the configuration shown in figure 4 The discharge...

Page 7: ... flange 4 Standard top inlet flange The machine works on the liquid ring principle An eccentrically mounted impeller rotates in a housing partially filled with operating liquid usually water The impeller blades dip into the fluid and the centrifugal force exerted by their rotation forms a so called liquid ring within the housing The pumped medium is transported in the spaces between the blades and...

Page 8: ...late please refer to the ATEX supplement for additional safety information on operation in hazardous zones Conveying of other media leads to an increased thermal and or mechanical load on the machine and is permissible only after a consultation with Busch The machine is intended for the placement in a non potentially explosive environment The machine is capable of maintaining ultimate pressure see...

Page 9: ...he crane and slings must be capable of lifting the weight of the pump To find out the weight of the machine refer to the chapter Technical Data 32 or the name plate NP Use appropriate slings Generally the lifting point should be on the baseplate on which the machine is installed The lifting point of a bare shaft pump is shown above Check the machine for transport damage ...

Page 10: ...porary mark on the shaft to assist Replace the coupling guard taking care to align correctly and ensure that all fasteners are re placed and fully tightened Where shaft seal is gland packing loosen the packing gland plate 4 3 Long Term Over 6 Months If the machine is constructed in cast iron material Preserve internals by using a combined VPI Vapor Phase Inhibitor and Contact Inhibitor Oil at a re...

Page 11: ... any other way Make sure that enough space remains for maintenance work Make sure that the machine is placed or mounted horizontally on a flat surface Make sure that the machine is connected to an operating liquid system see Operating Liquid Connection Make sure that all provided covers guards hoods etc are mounted In case of a machine delivery without motor Make sure that the coupling is correctl...

Page 12: ... NOTICE Discharge gas flow obstructed Risk of damage to the machine Make sure that the discharged gas will flow without obstruction Do not shut off or throttle the discharge line or use it as a pressurized air source NOTICE Too high elevation or lack of separation Will cause back pressure and possible drive motor overload The discharge piping on machines without integral separator manifold should ...

Page 13: ...stallation 5 Instruction Manual DOLPHIN LR 0110 0580 A_EN_en 13 40 5 2 3 Operating Liquid Connection DOLPHIN LR 0110 A LR 0300 A F OPI H C OPO G SSI I DOLPHIN LR 0420 A LR 0580 A I G SSI F OPI H K J ADV K ...

Page 14: ... of delivery is al ways contractually agreed upon The condition of both the operating liquid and the conveyed media depend on the physical condi tions pressure and temperature At a very low pressures and sufficiently high temperatures the operating liquid can locally transfer into the vapor phase creating bubbles within the operating liquid This process is called cavitation and may deteriorate the...

Page 15: ... 69 1 32 1 76 1 56 2 34 1 76 2 34 1 96 2 62 2 08 2 78 2 16 2 96 2 30 3 15 1 10 1 32 1 30 1 56 1 47 1 76 1 63 1 96 1 73 2 78 1 80 2 16 1 92 2 30 LR 0300 A Speed r min 200 mbar m h 200 400 mbar m h 400 600 mbar m h 600 mbar m h 565 660 740 820 880 920 980 3 12 3 90 3 68 4 60 4 16 5 20 4 64 5 80 4 96 6 20 5 20 6 50 5 54 6 93 2 08 3 12 2 46 3 68 2 78 4 16 3 10 4 64 3 31 4 96 3 44 5 20 3 67 5 54 1 56 2...

Page 16: ... no particles with a diameter larger than 0 2 mm will intrude the machine neither via the process gas nor via the operating liquid Use suitable filtration as necessary The table below lists the recommended maximum levels of soluble compounds for use with ma chine in cast iron construction Calcium carbonate mg l ppm 300 PH value 6 5 9 5 Chloride mg l ppm 700 Sulphates mg l ppm 200 Nitrites mg l ppm...

Page 17: ...e of a machine supplied without a motor Fit a suitable coupling that matches the machine and motor shaft size Make sure that the coupling is sized to withstand the full motor torque Make sure that the coupling is correctly aligned according to the coupling instructions Install a protective cover or a guard Machine type Machine shaft size mm LR 0110 A LR 0140 A 50 LR 0210 A LR 0300 A 70 LR 0420 A 1...

Page 18: ...he EMC of the machine is compliant with the requirements of your supply net work system if necessary provide further interference suppression EMC of the machine see EU Declaration of Conformity 35 or UK Declaration of Conformity 36 6 1 Machine delivered without Control Box or Variable Speed Drive VSD DANGER Live wires Risk of electrical shock Electrical installation work must only be executed by q...

Page 19: ... disconnect switch provide it on the power line so that the machine is completely secured during maintenance tasks Provide an overload protection according to EN 60204 1 Connect the protective earth conductor NOTICE Incorrect connection Risk of damage to the variable speed drive The wiring diagrams given below are typical Check the connection instructions diagrams 6 3 Wiring Diagram Three Phase Mo...

Page 20: ...r is defined by the illustration below Watch the fan wheel of the motor and determine the direction of rotation just before the fan wheel stops If the rotation of the motor must be changed Switch any two of the motor phase wires For motor wiring and wiring diagrams please refer to motor manufacturers instruction man uals ...

Page 21: ...re met Before operating the machine Make sure that the operating liquid level is at the machine shaft center Check the operation of all automatic valves before start up Machines with gland packing for shaft sealing loosen the packing gland plate and apply a few drops of oil to the packing for lubricating purpose Ensure external shaft sealing liquid is available to packing gland or double cartridge...

Page 22: ... located on surfaces the operating liquid cannot intrude the cavity left by the bubble equally from all directions Instead the inflowing liquid hits the surface with high speed This causes erosion which can destroy the machine rapidly The formation of bubbles also deteriorates the pump performance Cavitation is clearly audible by its crackling noise The working pressure of the vacuum pump shall th...

Page 23: ...poisoning Risk of infection If the machine is contaminated with hazardous material Wear appropriate personal protective equipment CAUTION Hot surface Risk of burns Prior to any action requiring touching the machine let the machine cool down first Shut down the machine and lock against inadvertent start up Turn off the operating liquid system Vent the connected lines to atmospheric pressure If nece...

Page 24: ...Operating Conditions Check the operating liquid temperature see Operating Liq uid Connection Check the machine for liquid leaks in case of leaks have the machine repaired contact Busch If applicable check gland packing leakage rate 20 to 40 drips per minute and adjust as required Every 2500 operating hours Regrease the bearings The amount of grease accounts for 2 3 of the free space of the bearing...

Page 25: ...Any dismantling of the machine that goes beyond anything that is described in this manual should be done by Busch authorized technicians In case of the machine having conveyed gas that was contaminated with foreign materials which are dangerous to health Decontaminate the machine as much as possible and state the contamination status in a Dec laration of Contamination Busch will only accept machin...

Page 26: ...action requiring touching the machine let the machine cool down first Shut down the machine and lock against inadvertent start up Disconnect the power supply Vent the connected lines to atmospheric pressure Disconnect all connections If the machine is going to be stored See Storage 10 1 Dismantling and Disposal Separate special waste from the machine Dispose of special waste in compliance with app...

Page 27: ...land packing 0992 700 723 Service kit for LR 0210 A LR 0300 A Intended for standard applications with gland packing shaft seal 2x lip seal 2x valve retaining plate 2x valve plate 1x gasket set includes V seal o ring and shim ring 1x gland packing 0992 700 724 Service kit for LR 0420 A Intended for standard applications with gland packing shaft seal 2x lip seal 2x valve retaining plate 2x valve pla...

Page 28: ...he motor is defective Replace the motor Water level too high inside when starting Start with the water level specified Packing gland too tight Loosen the gland adequate ly Belt too tight Loosen the belt adequately Wear developing in the pump Turn the impeller with force and flush with water Discharge pressure too high Make sure the vent line is free of restrictions and is at least same size as pum...

Page 29: ...ting liquid The mechanical seal leaks Repair the machine contact Busch Partial clogging in the suction discharge or pressure line Remove the blockage If an inlet screen is installed it can be partially clogged Clean the inlet screen Internal parts are worn or damaged Repair the machine contact Busch Excessive leakage from the gland packing Tighten the packing gland Speed low due to slippage of the...

Page 30: ... it if necessary Belts loose Tighten the belts Suction and discharge piping is too thin Use thicker piping The machine runs too hot Insufficient air ventilation Make sure that the cooling of the machine is not imped ed by dust dirt Clean the fan cowling the fan the ventilation grill and the cooling fins of the mo tor Ambient temperature too high Observe the permitted am bient temperature see Tech ...

Page 31: ... LR 0110 0580 A_EN_en 31 40 Problem Possible Cause Remedy Vibration is high Loose contact between the baseplate and the foundation or the anchor bolts are loose Fill the space with concrete tighten the anchor bolts Alignment fail Adjust alignment ...

Page 32: ...790 980 1170 1450 790 980 1170 1450 Noise level EN ISO 2151 dB A 80 Vibration velocity unfiltered RMS mm s in s 4 5 0 18 1450 min 1 6 0 24 Max allowable gas inlet tem perature C Gas dry 120 Gas saturated 100 Ambient temperature range C 5 40 Relative humidity at 30 C 90 Ambient pressure Atmospheric pressure Operating liquid require ments once through opera tion only See Operating Liquid Settings We...

Page 33: ...565 740 880 980 565 740 880 980 Noise level EN ISO 2151 dB A 85 Vibration velocity unfiltered RMS mm s in s 4 5 0 18 Max allowable gas inlet tem perature C Gas dry 120 Gas saturated 100 Ambient temperature range C 5 40 Relative humidity at 30 C 90 Ambient pressure Atmospheric pressure Operating liquid require ments once through opera tion only See Operating Liquid Settings Weight without motor bar...

Page 34: ...500 590 740 790 372 472 530 660 Noise level EN ISO 2151 dB A 85 Vibration velocity unfiltered RMS mm s in s 4 5 0 18 Max allowable gas inlet tem perature C Gas dry 120 Gas saturated 100 Ambient temperature range C 5 40 Relative humidity at 30 C 90 Ambient pressure Atmospheric pressure Operating liquid require ments once through opera tion only See Operating Liquid Settings Weight without motor bar...

Page 35: ...e use of certain hazardous substances in electrical and electronic equipment incl all related applicable amend ments and comply ies with the following designated standards that have been used to fulfill those provisions Standards Title of the Standard EN ISO 12100 2010 Safety of machinery Basic concepts general principles of design EN ISO 13857 2019 Safety of machinery Safety distances to prevent ...

Page 36: ...016 Restriction of the use of certain hazardous substances in Electrical and Electronic Equipment Regulations 2021 and comply ies with the following designated standards that have been used to fulfill those provisions Standards Title of the Standard EN ISO 12100 2010 Safety of machinery Basic concepts general principles of design EN ISO 13857 2019 Safety of machinery Safety distances to prevent ha...

Page 37: ...Instruction Manual DOLPHIN LR 0110 0580 A_EN_en 37 40 Notes ...

Page 38: ...38 40 Instruction Manual DOLPHIN LR 0110 0580 A_EN_en ...

Page 39: ...Instruction Manual DOLPHIN LR 0110 0580 A_EN_en 39 40 ...

Page 40: ...resence In every country highly competent local personnel delivers custom tailored support backed by a global network of expertise Wherever you are Whatever your business We are there for you Local representatives and distributors Busch companies and Busch employees Busch production site www buschvacuum com 0870237638 0001_en US ...

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