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Compressor Instability with Integral Methods Episode 2 Part 3

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Tham khảo tài liệu 'compressor instability with integral methods episode 2 part 3', kỹ thuật - công nghệ, cơ khí - chế tạo máy phục vụ nhu cầu học tập, nghiên cứu và làm việc hiệu quả | Chapter 7 Health Safety and Environment 7.1 Safety Features of Blast Cleaning 7.1.1 General Safety Aspects General aspects of health safety and environment HSE for blast cleaning applications are summarised in Fig. 7.1. ISO 12944-4 states the following for surface preparation in general All relevant health and safety regulation shall be observed. Blast cleaning owns an injury potential. General sources of danger to blast cleaning operators include the following reactive forces generated by the exiting air-abrasive mixture see Sect. 6.6.4 hose movements uncontrolled escape of pressurised air damaged parts being under pressure dust and aerosol formation sound emitted from equipment and blasting jet impact from rebounding abrasive material and debris from the impact point. It is generally recommended to carry out a risk assessment of the actual environment where a blast cleaning job will be done before starting the job. This risk assessment may include French 1998 how access is to be gained is there a need for scaffolding is there confined space what is the surface like where the operators will have to stand the availability of day light or artificial light the presence of electrical supplies equipment nature of contaminate Is it toxic Is it a pathogen Is it asbestos based Is it harmful or corrosive general layout that will allow visual contact between the blast cleaning team permit requirements A. Momber Blast Cleaning Technology 295 Springer 2008 296 7 Health Safety and Environment Fig- 7-1 HSE risk analysis for blast cleaning processes Kura 2005 safety of access e.g. working on motorways or hazardous areas such as refinery where flameproof equipment and earthing to avoid static electricity may be required who or what will be affected by flying debris is noise a problem will containment be necessary where will the effluent go for wet blast cleaning and slurry blast cleaning In that context ISO 12944-4 states the following Personnel carrying out surface preparation .