Vahterus Plate - Table of Contents

1 General 7
1.1 Introduction 7
1.2 Products 8
1.3 Structure 11
1.4 Technicalspecications 11
2 Assembly of the Heat Exchanger 13
2.1 Lifting 13
2.2 Pipes 14
2.2.1 General 14
2.2.2 Steam application (Condensers) 16
2.3 Insulation 17
2.4 Pressure test 17
2.5 Mounting brackets 18
3 Permitted Conditions for Operating 19
3.1 Design 19
3.2 Fluids 20
3.3 Flow rates 22
4 Operation 23
4.1 Principle of the Heat Exchanger 23
4.1.1 Liquid–Liquid 24
4.1.2 Condenser 25
4.1.3 DX-Evaporator 25
4.1.4 Flooded Evaporator 26
4.1.5 Droplet Separator 27
4.1.6 Steam Generator (Kettle) 28
4.1.7 Exhaust Gas Economiser (EGE) 28
4.2 General start-up 29
4.3 General shut down 30
4.4 Start-up and shut down of steam applications 31
4.5 Recommended periodical inspections of PSHEs 36
5 Cleaning the Heat Exchanger 37
5.1 General 37
5.2 Recommendations for cleaning 38
5.2.1 Backwardsow 39
5.2.2 Chemical cleaning 40
5.2.3 Mechanical cleaning 41
5.2.4 Analysis after cleaning 42
5.3 Openable model 42
5.3.1 Preparations 43
5.3.2 Opening the exchanger and removing the plate pack 43
5.3.3 Mounting the plate pack 45
5.3.4 Bolt/nut tightening pattern 46
6 Expandable Plate Pack 47
7 Spare Parts / Special Tools 48
8 Packing and Storage 48
Contents