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8 | Maintenance

22 | 36

Instruction Manual Supplement DOLPHIN VL Systems_EN_en

8.1

Maintenance Schedule

The maintenance intervals depend very much on the individual operating conditions. The intervals
given below are considered as starting values which should be shortened or extended as appropri-
ate. Particularly harsh applications or heavy duty operation, such as high dust loads in the environ-
ment or in the process gas, other contamination or ingress of process material, can make it neces-
sary to shorten the maintenance intervals significantly.

Interval

Maintenance work

Monthly

Check the machine for liquid leaks - in case of leaks have
the machine repaired (contact Busch).

Check gauges are functioning – replace if damaged.

Yearly

Clean Y-strainer.

Clean inlet screen if installed.

Drain and clean level indicator.

Flush and clean heat exchanger.

Check function of electrical control devices.

Summary of Contents for DOLPHIN VL Systems

Page 1: ...PHIN VL Systems Liquid Ring Vacuum Pumps VL 0100 A VL 0130 A VL 0170 A VL 0180 A VL 0220 A VL 0270 A VL 0320 A VL 0430 A VL 0510 A VL 0530 A VL 0630 A VL 0750 A VL 0800 A Instruction Manual Supplement...

Page 2: ...ting Lines Pipes 12 5 2 1 Operating Liquid Connection 13 6 Electrical Connection 16 6 1 Machine delivered without Control Box or Variable Speed Drive VSD 16 6 2 Machine delivered with a Variable Speed...

Page 3: ...ding 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 This instruction manual highlights poten...

Page 4: ...ruction Manual Supplement DOLPHIN VL Systems_EN_en 2 Product Description Once through system IN OUT OPV OPO ACV BF OPI ST OPC PRV CG SV LRP NRV Partial recovery system IN OUT OPO ACV BF SV LRP NRV OPD...

Page 5: ...I Level indicator LRP Liquid ring vacuum pump LS Level switch OPC Operating liquid control valve OPD Operating liquid drain OPI Operating liquid inlet OPO Operating liquid outlet overflow OPV Operatin...

Page 6: ...System NOTE Instruction manual supplement This document is a supplement to the DOLPHIN LM and LT liquid ring vacuum pump instruction manual whose content remains valid 2 1 Operating Principle 2 1 1 On...

Page 7: ...id by recovering and recircu lating 50 of the operating liquid Fresh operation liquid is added to the system via the separator makeup connection to maintain constant operating liquid temperature to th...

Page 8: ...or non hazardous area E ATEX system 2 3 Start Controls The machine comes without start controls The control of the machine is to be provided in the course of installation 2 4 Control Concept 2 4 1 Onc...

Page 9: ...inlet to be isolated whilst the strainer is cleaned Operating liquid control valve OPC allows the operating liquid flow rate to be regulated for opti mum performance of the system Suction non return v...

Page 10: ...the machine Do not lift the entire system by the vacuum pump and the motor Check the machine for transport damage To find out the weight of the machine refer to the chapter Technical Data 29 or the na...

Page 11: ...N_en 11 36 4 Storage NOTICE Storage temperature below 5 C Risk of damage to the machine Drain the operating liquid from the machine and the system before storage Or add an anti freeze solution After t...

Page 12: ...or obstructed and that the cooling air flow is not affected adversely in any other way Make sure that enough space remains for maintenance work Make sure that the machine is placed or mounted horizon...

Page 13: ...tor vent piping should not be restricted as separator vessel is not pressure rated NOTICE Discharge gas flow obstructed Risk of damage to the machine Make sure that the discharged gas will flow withou...

Page 14: ...tion 14 36 Instruction Manual Supplement DOLPHIN VL Systems_EN_en DOLPHIN VL 0100 0800 A Partial recovery IN OPO OPI OUT OPD DOLPHIN VL 0100 0800 A Total recovery Plate heat exchanger IN OPO OPI OUT O...

Page 15: ...e heat exchanger IN OPI OPD1 OUT CLO1 OPO CLI1 Connection size Machine type IN OUT OPO OPI OPD CLO CLI OPD1 CLI1 CLO1 VL 0100 0270 A G1 R2 R1 G G G G G G1 G1 VL 0320 0530 A G2 R3 R2 G G G G G1 G1 G1 V...

Page 16: ...the 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 34 o...

Page 17: ...er 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 Ris...

Page 18: ...13T Pilot Diaphragm Electrical data Ui 24 VDC Pi 5 5 W IP 65 Contact Normally closed IN OUT In IN Out OUT Coil de energised IN and OUT close Coil energized IN to OUT 6 4 2 Wiring Diagram Resistance Th...

Page 19: ...anufacturer After a few seconds of operation Turn on activate the operating and cooling liquid system device Make sure that the operating conditions comply with the Technical Data 29 or the Operating...

Page 20: ...even closing of the suction line The vapor pressure of the operating liquid and consequently the ultimate pressure can be reduced by cooling However this increases the cooling water flow considerably...

Page 21: ...f 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 touc...

Page 22: ...y operation such as high dust loads in the environ ment or in the process gas other contamination or ingress of process material can make it neces sary to shorten the maintenance intervals significant...

Page 23: ...cy 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 contamin...

Page 24: ...ny 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...

Page 25: ...x coupling flexible insert 867 0 HRC110 Coupling spare for VL 0630 A VL 0750 A VL 0800 A Intended for standard IEC motor installations 1x coupling flexible insert 867 0 HRC150 Heat exchanger for VL 01...

Page 26: ...eal version 2x End cover seals 0990 700 564 Heat exchanger service kit for VL 0100 A VL 0130 A VL 0170 A VL 0180 A VL 0220 A VL 0270 A Intended for shell and tube heat exchanger Chemical version 2x En...

Page 27: ...liquid The motor is defective Replace the motor The machine runs very noisily or rattles The operating liquid level is too high Adjust the regulating valves to drain the pump down to center line Densi...

Page 28: ...ual pressure on the suc tion connection Suction or discharge lines too long or section diameter too small Use larger diameter or shorter lines Seek advice from your local Busch representative The oper...

Page 29: ...ange C 5 40 Relative humidity at 30 C 90 Ambient pressure Atmospheric pressure Cooling liquid flow rate plate heat exchanger m3 h 0 63 0 86 1 15 1 58 1 58 2 15 Cooling liquid flow rate shell and tube...

Page 30: ...100 Ambient temperature range C 5 40 Relative humidity at 30 C 90 Ambient pressure Atmospheric pressure Cooling liquid flow rate plate heat exchanger m3 h 1 89 2 92 2 58 4 3 Cooling liquid flow rate s...

Page 31: ...40 Relative humidity at 30 C 90 Ambient pressure Atmospheric pressure Cooling liquid flow rate plate heat exchanger m3 h 0 86 1 15 1 15 0 95 0 95 1 29 Cooling liquid flow rate shell and tube heat exch...

Page 32: ...5 40 Relative humidity at 30 C 90 Ambient pressure Atmospheric pressure Cooling liquid flow rate plate heat exchanger m3 h 1 89 2 24 1 89 2 92 2 58 2 92 Cooling liquid flow rate shell and tube heat ex...

Page 33: ...hanger m3 h 2 58 3 61 3 18 4 5 Cooling liquid flow rate shell and tube heat exchanger m3 h 4 44 5 16 6 12 7 56 5 16 6 78 7 86 10 92 Maximum cooling liquid pressure bar g 10 Min operating liquid densit...

Page 34: ...ic Compatibility EMS 2014 30 EU RoHS 2011 65 EU Restriction of the use of certain hazardous substances in electrical and electronic equipment incl all related applicable amend ments and comply ies wit...

Page 35: ...afety Regulations 2008 Electromagnetic Compatibility Regulations 2016 Restriction of the use of certain hazardous substances in Electrical and Electronic Equipment Regulations 2021 and comply ies with...

Page 36: ...esence 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 Busch com...

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