How to handle catkins in aviation fuel
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Dear experts: The jet fuel tanks in our facility are equipped with internal floating roofs and do not have a nitrogen seal; every spring, willow and poplar fluff gets into the jet fuel through the ventilation holes. Do you have any effective solutions?
A large-mesh metal screen can be installed over the ventilation holes, but it’s important to prevent blockages by cleaning it regularly. If there is a concern that dust inhalation might affect ventilation, using a screen with a large surface area can help avoid such issues; for example, installing a cover with a relatively large filtering surface should solve the problem
The ventilation holes are fitted with downward bends and large-mesh metal screens.
Install downward bends and filters on the ventilation holes; a higher level of precision is required, and this should yield good results
Every spring in the northern regions, willow fluff and poplar fluff pose a problem by affecting the quality of aviation fuel. In addition to installing filters on the ventilation openings, the following two points should be taken into account during operations: 1. The drifting of willow fluff follows a certain pattern; it is most abundant in midday when the sunlight is strong (between 11 am and 3 pm, with slight variations depending on the region). There is less willow fluff drifting in other times of the day. It is best to avoid pouring oil or loading containers during these periods, so as to prevent the storage tanks from inhaling willow fluff through their ventilation openings while oil is being discharged. 2. If work must be carried out during the period when willow fluff is flying, it is advisable to introduce a temporary air supply line at the top of the oil tank; purified air should be supplied into the space above the floating roof inside the tank to maintain a slight positive pressure, thereby preventing willow fluff from being drawn into the tank. 3. The filter screens installed on the ventilation holes should be checked and cleaned regularly to prevent blockages.
Under normal circumstances, the receipt and dispatch of oil products cannot be decided by operators; transferring oil within a tank farm or loading it onto vehicles while avoiding certain periods of time is not practical and can only be considered in theory. It is still more convenient and feasible to install downward bends and filters at the ventilation holes.
It is better to plant fewer willow trees. Everything said upstairs is correct.