CLEANING OF EQUIPMENT FOR OXYGEN SERVICE - AIGA

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A) Venting B) Filter C) Pump Applications: Fig. 9. Wash cabin for manual cleaning. 41 <strong>AIGA</strong> 012/04 This type of equipment is suitable mainly for intermittent cleaning of small parts where all surfaces can be directly inspected. Examples are cleaning in connection with repair and maintenance work. Components cleaned by this method must be carefully checked for a residue from the cleaning solvent. 5 Auxiliary Equipment Beside the equipment necessary for the cleaning process, there are also different kinds of equipment, which decrease the amount of waste and may save a lot of money. 5.1 Particle Removal from Process Liquids The removal of particles from re-circulating process liquids is essential in order to minimise the wear on mechanical parts like pumps and valves and to avoid clogging the spray nozzles. The particles can be removed as sediment from the tanks or by different types of filters e.g. wire screen filters in the piping system. 5.2 Oil Separation The lifetime and efficiency of cleaners and rinsing water depends on the maintenance of the original composition of these liquids. By re-circulating purified process liquids, considerable savings can be obtained in chemicals, water and waste dumping costs. The oil in the spent cleaner or rinsing water can exist Fig, free oil or as an emulsion. Free oil can be separated by means of gravity, by filtration or by adsorption. Examples of equipment used are oil skimmer, lamella separator, coalescence filter, oil adsorbing bag filter, and propylene filter.
42 <strong>AIGA</strong> 012/04 Emulsified oil can be removed by ultra filtration, chemical decomposition, micro filtration, and adsorption or biological treatment. Evaporators and vapour compression apparatus are also used. 5.3 Vapour Emission Control The control of vapour emission from solvent based cleaning equipment is essential from an environmental as well as safety viewpoint. In carbon or molecular sieve adsorption equipment, he vapour in the vent air is trapped in adsorption beds. When the beds are saturated, they are regenerated by steam or hot gas. Cryogenic condensation can also be applied, atone or in combination with carbon filter. The solvent is condensed from the vent air in a heat exchanger cooled with liquid nitrogen. 6 Figure Index The following figure sources have been utilised Fig. 1 Company catalogue. Alfred K5rcher GmbH & Co. Fig. 2 J. Skogsmo, C. Norrby, "Handbok i Industriell Rengoring", The Swedish Institute of Production Engineering Research (IVF), 1994. Fig. 3 Own sketch. Fig. 4 Company brochure. Langeds Mekaniska AB. Fig. 5 J. Skogsmo, C. Norrby,"Handbok i Industriell Rengoring", The Swedish Institute of Production Engineering Research (I VF), 1994. Company brochure. Viverk Fbrsâljnings AB. Fig. 7 J. Skogsmo, C. Norrby, "Handbok i Industriell Rengoring", The Swedish Institute of Production Engineering Research (IVF), 1994. Fig. 8 J. Skogsmo, C. Norrby, "Handbok i Industtiell Rengoring", The Swedish Institute of Production Engineering Research (IVF), 1994. Fig. 9 J. Skogsmo, C. Norrby, 'Handbok i Industriell Rengoring", The Swedish Institute of Production Engineering Research (IVF), 1994.
Page 1 and 2: CLEANING OF EQUIPMENT FOR OXYGEN SE
Page 3 and 4: Acknowledgement AIGA 012/04 This do
Page 5 and 6: AIGA 012/04 6.4 Acceptance Criteria
Page 7 and 8: 2 AIGA 012/04 The phase-out schedul
Page 9 and 10: - frequently - occasionally 4 AIGA
Page 11 and 12: 6 AIGA 012/04 As a final stage in t
Page 13 and 14: 8 AIGA 012/04 Hydrochloric and nitr
Page 15 and 16: 10 AIGA 012/04 4.2.3.4 Notes on Sol
Page 17 and 18: 12 AIGA 012/04 f) An aqueous cleani
Page 19 and 20: 14 AIGA 012/04 Operators carrying o
Page 21 and 22: 5.1.2 Wire Brushes 16 AIGA 012/04 W
Page 23 and 24: 18 AIGA 012/04 These characteristic
Page 25 and 26: Solvent (trival / common name) CHLO
Page 27 and 28: Table 3: Acid chemical cleaning mat
Page 29 and 30: 6 Inspection methods and acceptance
Page 31 and 32: The amount of contaminants in a sam
Page 33 and 34: 6.4.1 Odour Test 28 AIGA 012/04 If
Page 35 and 36: 30 AIGA 012/04 Cleaned components s
Page 37 and 38: 32 AIGA 012/04 Appendix B: Cleaning
Page 39 and 40: 3.2 Wash Cabins for Manual Cleaning
Page 41 and 42: A) Heating element B) Lifting beam
Page 43 and 44: 38 AIGA 012/04 with flushing / spra
Page 45: D) Closed cleaner reservoir E) Clea
Page 49 and 50: 4.4 Post Fabrication Cleaning 44 AI
Page 51 and 52: 46 AIGA 012/04 Appendix D: Detergen
Page 53 and 54: 48 AIGA 012/04 Fig 1. High pressure
Page 55 and 56: 50 AIGA 012/04 Appendix F: Cleaning
Page 57 and 58: A) Jet tube B) Injection C) Condens
Page 59 and 60: 1. Material / Size Appendix I: Clea

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