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Oerlikon Leybold Vacuum 129 78, Installation And Operating Instructions Manual

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Oerlikon Leybold Vacuum 129 78 Installation And Operating Instructions Manual Download Page 18

3.3

Connecting the cold head

Insulation vacuum

The cold head can be installed in any position. The cold head is delivered
complete with a weld-on pipe or with a flange for installation in a system.

The copper flanges have holes with an M4 thread. They are used to fasten
parts to be cooled.

Connect the cold head to the compressor unit. Refer to the Operating
Instructions for the compressor unit.

The refrigerating stages have to be thermally vacuum insulated from the
environment (

p

#

5 · 1 0

- 2

mbar

) to be able to cool the cold heads. We will

gladly be of assistance in selecting a suitable vacuum pump.

Do not interchange the high-pressure- with the low-pressure connections.
Wrong connection may damage the cold head.

Installation

18

GA12119_002_A3 - 01/2012 - © Oerlikon Leybold Vacuum

NOTICE

Summary of Contents for 129 78

Page 1: ...Part Numbers 893 04 893 05 129 78 842 040 842 030 842050V000X COOLPOWER 5 100 5 100 T 7 25 140 T 50 Cold Heads Installation and Operating Instructions GA12119_002_A3 ...

Page 2: ...echnical Data 9 1 4 Ordering Data 11 2 Transportation and Storing 15 3 Installation 16 3 1 Conforming Utilization 16 3 1 1 Non conforming utilization 16 3 2 Unpacking and Checking the Delivery 17 3 3 Connecting the cold head 18 3 4 Electrical Connection 19 3 5 Installing the Flexible Pressure Lines 20 4 Operation 23 4 1 Removing from Service 24 5 Maintenance 25 5 1 Oerlikon Leybold Vacuum Service ...

Page 3: ...ated and maintained by trained personnel only Consult local state and national agencies regarding specific requirements and regulations Address any further safety operation and or maintenance questions to our nearest office DANGER indicates an imminently hazardous situation which if not avoided will result in death or serious injury WARNING indicates a potentially hazardous situation which if not ...

Page 4: ...ompressors pressure lines and electrical connecting lines 6 For its conforming utilisation the cold head must be installed within an insulating vacuum The operator is responsible for properly designing the vacuum vessel 7 All lines which are used electric lines and pressure lines must be undamaged 8 Do not lay flexible pressure lines along passageways risk of damage and corrosion 9 Always maintain...

Page 5: ... death or severe injury can result 4 After all servicing work running of an electrical safety test is mandatory 5 Do not expose the cold head to splash or drip water 6 Lay the connecting lines so that they cannot be damaged Protect the lines against humidity and contact with water 7 When storing the cold head and the connecting cables in a humid atmosphere then these components may corrode Corrosi...

Page 6: ...ulating vacuum must be provided with a safety valve which opens when a leak occurs between the high pressure helium and the insulating vacuum when frozen gases which collect because of leaks in the insulating vacuum are released when shutting down and warming the cold head 2 The safety valve present at the cold head must not be blocked or modified 3 The cold head is operated through the connected ...

Page 7: ...tating control valve 1 8 controls the movement of the displacer the expansion of the helium gas in the cold head and the pneumatic drive of the displacement piston The control valve is mounted on the shaft of a synchronous motor 1 9 which is supplied with electric power from the compressor unit The frequency of the compressor piston movement is 2 Hz at a line frequency of 50 Hz 2 4 Hz at a line fr...

Page 8: ...ration stage copper flange 2 Expansion volume 2nd stage 3 Displacer piston 2nd stage 4 1st refrigeration stage copper flange 5 Expansion volume 1st stage 6 Displacer piston 1st stage 7 Weld on pipe Flange for Part Nos 893 04 and 842 030 8 Control valve 9 Synchronous motor 10 Helium high pressure connection 11 Safety valve 12 Helium low pressure connection 9 8 7 6 5 4 3 2 1 ...

Page 9: ... to 20 K approx 55 min Permissible ambient temperature 10 40 C He filling pressure at room temperature 1 16 1 bar Opening pressure of safety valve 28 bar He connections Self sealing fittings 1 2 m 2 Weight excluding power cord approx 8 kg Connection for mounting on the system Flange Weld on pipe Weld on pipe Flange DN 160 ISO K 130 mm 130 mm DN 160 ISO K Holes with a thread M4 at the copper flange...

Page 10: ...rmissible ambient temperature 10 40 C He filling pressure at room temperature 1 Opening pressure of safety valve 28 bar He connections Self sealing fittings 1 2 m 2 Weight excluding power cord approx 8 kg Connection for mounting on the system Weld on pipe Weld on pipe 130 mm 130 mm Holes with a thread M4 at the copper flanges 1st stage 8 8 2nd stage 6 Length of power cord to the compressor unit Ty...

Page 11: ... 60 Hz 1ph 840000V2210 Mains power cord for COOLPAK 6000 3 5 m long 4x4mm2 with CE plug 32 A 6h 3 N PE 893 95 3 5 m long 4xAWG 12 with NEMA plug L16 20P 20 A 480 V 893 96 Mains power cord for COOLPAK 6200 also suitable for COOLPAK 6000 with conductor ferrules 4xAWG 10 10 m long 840 111 20 m long 840 112 COOLPAK water cooled compressor unit The helium connections of the compressor units listed here...

Page 12: ...00 Part No 893 05 COOLPOWER 5 100 T Part No 129 78 135 108 5 80 110 19 47 5 6 27 92 2 115 6 32 2 129 474 5 149 117 5 105 40 60 105 M4 13 5 13 5 128 7 127 47 5 130 129 COOLPOWER 5 100 Part No 893 04 135 108 5 80 277 5 19 47 5 6 27 92 2 115 6 32 2 129 474 5 149 117 5 105 40 60 105 M4 13 5 13 5 128 7 127 47 5 DN 160 ISO K ...

Page 13: ...dimensions in mm A B Ansicht A Ansicht B 3 0 6x60 4 5 8 x 4 5 47 5 125 5 69 87 490 M4 40 60 M4x7 82 1 18 3 ca 120 ca 120 6 135 COOLPOWER 7 25 Ø 105 Ø 115 Ø 105 6 DN 160 ISO K 12 148 5 346 ca 121 M 4 10 Mid of clamp Ø 60 Heli Coil M4 7 deep 22 5 45 Length 4 5 m COOLPOWER 140 T View B View A ...

Page 14: ...rawing dimensions in mm ø69 149 5 0 3 A A 364 75 31 5 117 5 8 x 4 5 1 6 x 2 2 5 2 2 5 1 1 3 A Gewinde M2 thread M2 M4 ø 6 9 0 3 13 5 27 A 400000867 1x Flansch DN100 CF drehbar COOLPOWER 50 Cat No 842050V0000 365 ø69 117 75 31 5 11 8 ø87 13 5 27 22 5 60 COOLPOWER 50 Cat No 842050V0001 ...

Page 15: ...upports such as the original packaging for storage and shipment The cold head must not be picked up by the second cooling stage for shipment It can be handled at the motor and the connection flange Fig 3 Cold Head COOLPOWER 5 100 1 2nd refrigeration stage copper flange 2 1st refrigeration stage copper flange 3 Weld on pipe or flange 4 Electrical connection cable to compressor unit Separate cable f...

Page 16: ...evices must not be disabled 2 Use of helium which is not pure a purity of 99 999 or higher is required or other gases 3 Operation at helium pressures higher than those specified 4 Use of the cold head in environments which demand a type of pro tection in excess of IP 54 and altitude above 1000 m 5 Operation without connected helium pressure lines and compressor 6 Removal covering or obstructing wa...

Page 17: ... the packaging materials The shipping container and packaging materials must be kept in the case of return shipments becoming necessary Check that the equipment is complete and carefully examine it visually If any damage is discovered report it immediately to the forwarding agent and insurer If the damaged part has to be replaced please get in touch with Oerlikon Leybold Vacuum In order to prevent...

Page 18: ... Connect the cold head to the compressor unit Refer to the Operating Instructions for the compressor unit The refrigerating stages have to be thermally vacuum insulated from the environment p 5 10 2 mbar to be able to cool the cold heads We will gladly be of assistance in selecting a suitable vacuum pump Do not interchange the high pressure with the low pressure connections Wrong connection may da...

Page 19: ...0 5 0 W Q2 300 0 50 100 150 200 250 K T2 25 15 5 100 7 25 Refrigerating capacity 1 of the 1st stage as a function of temperature T1 of the 1st stage 2nd stage 2 0 Q Q Refrigerating capacity 2 of the 2nd stage as a function of tem perature T2 of the 2nd stage 1st stage T1 80 K constant Q Operation with the recommended compressor unit at 50 Hz measured under standard acceptance conditions Cold head ...

Page 20: ...Do not use solvents to clean the connections The connections must not be greased or oiled Check the correct fit of the flat gaskets in the screwed fittings with external thread Replace missing or damaged gaskets To mount the pressure lines only use the supplied fork wrenches or fork wrenches approved by Oerlikon Leybold Vacuum Only connect or disconnect pressure lines if the compressor unit is tur...

Page 21: ...s and protect these against tripping and damage Installation 21 GA12119_00_A3 01 2012 Oerlikon Leybold Vacuum Fig 6 Mounting and removing self sealing screw fittings Fixing the screw fitting on the compressor unit Fixing the screw fitting on the cold head Removing the screw fitting from the compressor unit Removing the screw fitting from the cold head turn hold up loosen Cold head Compressor unit ...

Page 22: ...e pressure gauge and correct it if required The correct filling pressures and the filling process are described in the Operating Instructions for the compressor Detach flexlines only with the compressor unit switched off the cold head warmed up and when the pressure is below 28 bar 406 psig 2 8 MPa See Section 4 1 for details Detach the flexlines by unscrewing the couplings in reverse order Once t...

Page 23: ...ated as described as follows t0 cooldown time of cold head without components average refrigerating capacity of the cold head C heat capacity of the additional components between 300 and 20 K 300 K C m i ci T dT i 20 K m mass c T specific heat The following values can be inserted for the integral 300 K Material ci T dT 20 K Copper 79 Ws g 1 Aluminium 170 Ws g 1 Stainless steel 81 Ws g 1 The follow...

Page 24: ...s when selec ting suitable temperature monitors and temperature controllers 4 1 Removing from Service Switch off the compressor unit Allow the cold head to warm up before detaching the flexlines Loosening the flexlines with the cold head at low temperatures can result in a loss of helium Detaching the flexlines with the cold head at low temperature can when they heat up result in a rise in pressur...

Page 25: ... only by trained and qualified service personnel 5 1 Oerlikon Leybold Vacuum Service Whenever you send us in equipment indicate whether the equipment is contaminated or is free of substances which could pose a health hazard If it is contaminated specify exactly which substances are involved You must use the form we have prepared for this purpose A copy of the form has been reproduced at the end of...

Page 26: ...at compressor unit Use special adapter to relieve the pres sure at the cold head high pressure inta ke Check the control disk and the valve Purge and refill with ultra pure helium while the cold head motor is running Install a new oil adsorber Proceed as for contamination check direction of rotation Increase insulating vacuum to 10 3 mbar Install a new displacer piston Install a new control valve ...

Page 27: ...plant operator The cold head incorporates pressurized vessels When disposing of pressurized vessels please observe the relevant national safety regulations The cold head may have been contaminated by the process or by environmental influences In this case the equipment must be decontami nated in accordance with the relevant regulations Oerlikon Leybold Vacuum offers this service at fixed prices Fu...

Page 28: ...28 GA12119_002_A3 01 2012 Oerlikon Leybold Vacuum ...

Page 29: ...29 GA12119_00_A3 01 2012 Oerlikon Leybold Vacuum ...

Page 30: ...e of oil ForeVacuum Pumps Application Process B Condition of the equipment No1 Yes No Contamination No1 Yes 1 1 Has the equipment been used toxic 2 Drained Product service fluid corrosive 3 All openings sealed airtight flammable 4 Purged explosive 2 If yes which cleaning agent radioactive 2 and which method of cleaning microbiological 2 1 If answered with No go to D other harmful substances C Desc...

Page 31: ...31 GA12119_00_A3 01 2012 Oerlikon Leybold Vacuum Notes ...

Page 32: ... 33 00 Fax 33 4 75 82 92 69 marketing vacuum vc oerlikon com Great Britain Oerlikon Leybold Vacuum UK LTD Silverglade Business Park Leatherhead Road Unit 2 KT9 2QL Chessington Surrey London Sales Phone 44 13 7273 7300 Fax 44 13 7273 7301 sales vacuum ln oerlikon com Service Phone 44 20 8971 7030 Fax 44 20 8971 7003 service vacuum ln oerlikon com Italy Oerlikon Leybold Vacuum Italia S r l Via Trasi...

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