Навигация, радары, прокладка, корректура, GMDSS, каргопланы и все остальное, чем занимается палубная команда.
Модераторы: Breeze, TakeR
Доброго времени суток Господа.
кто знает отменили ли годовой pressure test of cargo line на танкерах. Онид супер сказал что уже не надо делать экипажем а только в Dry Dock и только не грузом а водой или азотом. Но на всновании каких циркуляров ответа так и не получил.
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Зарегистрирован: 24 май 2006, 18:34 Сообщения: 18
Должность: Старший помощник
Тип судов: Газовозы
Репутация: 0
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Vessel Inspection Questionnaires for Oil Tankers, Combination Carriers, Shuttle Tankers, Chemical Tankers and Gas Tankers, Seventh Edition (VIQ 7) | | | | 8.3 Are cargo pump performance curves available, are deck officers aware of the test requirements for the cargo lines, vapour lines and inert gas lines in good order and is there recorded evidence of regular testing where applicable? The presence of any latent defect in the cargo system will usually reveal itself when the system is pressurised during the discharge operation. It is good practice to pressure test cargo lines on a periodic basis, depending on the trade of the ship. Although these pressure tests may provide an indication of the system’s condition at the time of the test, they should not be considered a substitute for regular external inspection of the pipeline system and periodic internal inspections, particularly at known failure points, such as pump discharge bends and stub pipe connections. (ISGOTT 7.3.2) Pipelines should be visually examined and subjected to routine pressure tests to verify their condition. Other means of non-destructive testing or examination, such as ultrasonic wall thickness measurement, may be considered appropriate, but should always be supplemented by visual examination. (ISGOTT 10.11.3) Notes: A vessel's 'Oil Transfer System' should be tested to 100% of their rated working pressure (Sometimes referred to as Maximum Allowable Working Pressure - MAWP) at least annually. 'Oil Transfer Systems' should be tested to 1.5 times their rated working pressure at least twice within any five-year period. Pipelines should be marked with the date of test and the test pressure. A vessel's 'Oil Transfer System' includes the discharge pump and piping between the pump and the vessel's manifold, excluding any non-metallic hoses. In this case the MAWP can be assumed to be either the pressure at which the transfer piping relief valve is set or, where no relief valve (s) are fitted, the maximum discharge pressure that can be developed by the vessel's pump. For centrifugal pumps this is the pressure developed by the pump at zero flow conditions. Pressure testing should be a hydrostatic test, pressure testing using compressed air or inert gas is not acceptable. Note: This includes corrosion of bolts and flanges on dresser couplings. | | | | |
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Зарегистрирован: 10 мар 2006, 04:33 Сообщения: 4139
Откуда: Новороссийск
Должность: Плотник
Тип судов: Нефтяные танкера
Репутация: 1500
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