Table Of Contents - Vahterus Plate & Shell Fully Installation, Operation & Maintenance Manual

1 GENERAL ...................................................................................................... 5
1.1 INTRODUCTION ............................................................................................... 5
1.2 PRODUCTS ...................................................................................................... 5
1.3 STRUCTURE ..................................................................................................... 6
1.4 TECHNICAL CHARASTERISTICS .................................................................... 6
2 ASSEMBLY OF THE HEAT EXCHANGER .............................................................. 7
2.1 LIFTING ............................................................................................................. 7
2.2 PIPES ................................................................................................................ 8
2.2.1 GENERAL ............................................................................................. 8
2.2.2 STEAM APPLICATIONS (CONDENSER) ............................................. 9
2.3 INSULATION ................................................................................................... 10
2.4 PRESSURE TEST ........................................................................................... 10
2.5 MOUNTING BRACKETS ................................................................................. 10
3 PERMITTED CONDITIONS FOR OPERATING .................................................10
3.1 DESIGN ........................................................................................................... 10
3.2 FLUIDS .............................................................................................................11
3.3 FLOW RATES .................................................................................................. 12
4 OPERATION ................................................................................................ 12
4.1 PRINCIPLE OF THE HEAT EXCHANGER ...................................................... 12
4.1.1 LIQUID - LIQUID ................................................................................ 13
4.1.2 CONDENSER ..................................................................................... 14
4.1.3 DX-EVAPORATOR .............................................................................. 14
4.1.4 FLOODED EVAPORATOR .................................................................. 15
4.1.5 DROPLET SEPARATOR ..................................................................... 15
4.1.6 STEAM GENERATOR (KETTLE) ........................................................ 16
4.1.7 EXHAUST GAS ECONOMICER (EGE) .............................................. 16
4.2 GENERAL START-UP ..................................................................................... 16
4.3 GENERAL SHUT DOWN ................................................................................ 17
4.4 START-UP AND SHUT DOWN OF STEAM APPLICATIONS .......................... 17
4.5 RECOMMENDED PERIODICAL INSPECTIONS OF PSHE
HEAT EXCHANGERS ..................................................................................... 20
5 CLEANING THE HEAT EXCHANGER ......................................................... 20
5.1 GENERAL ....................................................................................................... 20
5.2 RECOMMENDATIONS FOR CLEANING ........................................................ 21
5.2.1 BACKWARDS FLOW .......................................................................... 21
5.2.2 CHEMICAL CLEANING ...................................................................... 22
5.2.3 MECHANICAL CLEANING ................................................................. 23
5.2.4 ANALYZE AFTER CLEANING ............................................................ 23
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