The system is based on the disintegrating property that a stream of crude oil produces, when it impacts on the foundations with a mass mass. The mass can be broken down with two systems: Large flow of liquid, insert a low pressure
Mixing is achieved by introducing the jets into the tanks by: the loops of the floating roof supports, removing the supports themselves; inserting them through existing outlets or maintenance holes; cutting holes in the floating roof; passing them through maintenance holes in the cover.
This system is particularly useful when the crude oil dregs need to be mixed in temperatures lower than 30°C and for tanks with diameters up to 50 metres. For tanks with diameters greater than this, it is advisable to install four jet systems to speed up mixing times to ensure the most effective treatment .
This system is capable of producing a flow rate of 250 cu m/hr at a pressure of 9 bars, enough to feed two mixing systems simultaneously, each capable of producing jets at 9 bars with a flow rate of over 100 cu m/hr, with a range of over 25 metres.
This system requires that the empty space between the level of the dregs and the floating roof be filled with nitrogen, in order to ensure an oxygen content in the atmosphere of less than 8%, so as to prevent any electrostatic charges from the jets from producing an explosive mixture.
A notable benefit of the long-range jet system is that it can mix a level of dregs and liquid crude oil of up to 70 cm, without introducing any additional liquid crude oil, because the high power of the jet will dislodge semi-solid dregs located underneath a mass of liquid.
Effegi designs and produces systems that are safe and respect the environment.
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