METHOD OF STRIKING BALANCE OF TRADE AT OIL STORAGE DEPOTS AND FILLING STATIONS IN OIL PRODUCT RECEPTION, STORAGE AND SALE IN OIL PRODUCT SUPPLY SYSTEMS AND SYSTEM TO THIS END Russian patent published in 2013 - IPC B67D7/24 

FIELD: transport.

SUBSTANCE: invention relates to automated assessment of incoming products and striking the balance continuously between oil products sales at said depots and filling stations in real time mode. Proposed method comprises fitting the instrumentation in tanks for arbitrary division of actual amount of oil products in tank Aa in n equal portions with weight ΔAa= Aa/n in every said portion. Appropriate magnitude of the amount for every portion ΔAa equal to ΔMd-Md/n=ΔAa' is defined in store accounting. Oil product is sold via automatic filling riser stock-taking assy or that of fuel distribution column. Results of oil product measurements at stock-taking assy and for tank are registered. Note here that density of sold oil product amount is defined by readings of density metre mounted at tank discharge pipe outlet to determine the magnitude and sign of discrepancy between sold amount as-measured by stock-taking meter and amount ΔAa'. Then, oil product amount in balance sheets as related to that measured by said assy ΔA"асн" is decreased by preset magnitude is oil product amount sold via stock-taking assy ΔA"асн" exceeds that fed from the tank, or increased if ΔA"асн" is underscored relative to ΔAa'. Sold oil product amounts are corrected with limits of balance sheet data so that difference between the amount of oil product fed from the tank ΔAa'*k and that as-measured by stock-taking assy ΔA"асн"*k asymptotically tends to zero ΔAa'*k-ΔA"асн"*k>0, where k is oil product issue jobs number to terminate oil product sale at reaching preset magnitude of oil product residue in the tank.

EFFECT: minimised unbalance as specified by existing standards, higher accuracy of unbalance determination in real time mode.

6 cl, 1 dwg