What causes the rust phenomenon of usage of 08cupvre steel

API 620 Steel Oil Tank Bottom and Shell SupportThe tank usage of 08CUPVRE steel under-bottom insulation shall be designed to resist the combined pressures from the product load, the overturning seismic load and the vertical seismic load. These seismic pressures may be combined by SRSS.The bearing ring under the shell shall be designed to resist the calculated OLE peak compressive force in the tank shell due to overturning (see API 650 oil tank, Section E.6.2.2), including dead and live loads. A 33 % increase in allowable bearing stress is permitted.

The company conducts periodic and targeted training and guidance for after-sales service personnel. As the saying goes, "no one is perfect, no gold is red", to help after-sales service personnel improve service skills and correct service attitude. Carry out relevant technical training for after-sales service personnel, so that after-sales service practitioners have professional product knowledge.

When the day light gradually decreases, the temperature of oil in the usage of 08CUPVRE steel will also decrease, the evaporation speed will gradually slow down, and the pressure in the usage of 08CUPVRE steel will also decrease. When the pressure in the usage of 08CUPVRE steel is lower than the negative pressure rating of the breathing valve, the outside air is sucked into the usage of 08CUPVRE steel through the open vacuum valve, which is the "suction" process of the oil tank.

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