Edwards B777-51-000, Инструкция по эксплуатации, Страница: 3 / 40

© Edwards Limited 2013. All rights reserved. Page i
Edwards and the Edwards logo are trademarks of Edwards Limited.
Contents
B777-50-880 Issue D
Contents
Section Page
1 Introduction ....................................................................................... 1
1.1 Scope and definitions ................................................................................................... 1
2 Technical Data .................................................................................... 3
2.1 General .................................................................................................................... 3
2.2 Pumping media ........................................................................................................... 3
2.2.1 Pumps without gas purge ............................................................................................... 4
2.2.2 Pumps with gas purge ................................................................................................... 4
2.3 Vent gas specification and vent control data ....................................................................... 5
2.4 Purge gas specification ................................................................................................. 5
2.5 Water cooling ............................................................................................................. 5
2.6 Materials exposed to gases pumped .................................................................................. 6
3 Installation ....................................................................................... 11
3.1 Unpack and inspect .....................................................................................................11
3.2 Typical installation .....................................................................................................11
3.3 Connection to the vacuum system ...................................................................................11
3.3.1 The inlet screen (supplied fitted) ....................................................................................13
3.3.2 Inlet connection .........................................................................................................13
3.3.3 Backing connection .....................................................................................................15
3.4 Vent options, vent valve connection and control ..................................................................15
3.5 Purge gas connection ...................................................................................................17
3.5.1 Connect the purge gas .................................................................................................17
3.5.2 Recommended purge gas flow ........................................................................................17
3.6 Electrical installation ..................................................................................................17
3.7 Cooling ...................................................................................................................19
3.7.1 Introduction ............................................................................................................. 19
3.7.2 Forced air cooling ....................................................................................................... 19
3.7.3 Water cooling ............................................................................................................ 19
3.8 Magnetic Fields ..........................................................................................................20
4 Operation ........................................................................................ 21
4.1 Start up ................................................................................................................... 21
4.2 Stand-by ..................................................................................................................21
4.3 Shut-down ................................................................................................................21
4.4 Safety interlocks and control system ................................................................................22
4.5 Bakeout (conflat only) .................................................................................................22
5 Maintenance ..................................................................................... 23
5.1 Introduction .............................................................................................................23
5.2 Bearing maintenance ...................................................................................................23
5.3 Rotor life ................................................................................................................. 23
5.4 Clean the pump .........................................................................................................23
5.5 Fault finding .............................................................................................................24
6 Storage and disposal ........................................................................... 27
6.1 Storage ...................................................................................................................27
6.2 Disposal ................................................................................................................... 27
dc
s/
810
8/0
8/0
8