| 摘要 |
FIELD: oil and gas industry.SUBSTANCE: pump is started to pump one selected product from specified supplied lines to a selected bulk device. A stop device is opened, corresponding to the selected product, in an inlet distribution header of the specified at least one pump, a stop device is opened, corresponding to the selected bulk device, in an outlet distribution header of the specified at least one pump, and with the specified at least one pump they pump the appropriate selected product to selected bulk devices. After pumping of the selected product and before pumping of the other selected product they perform dosed relief of the initially selected product, filling the space between inlet and outlet distribution headers of each pump, into the line of its supply by means of its displacement by the specified other selected product. Possibility is provided to discharge the whole assortment of products into required bulk points with at least one pump in operation, even though by reduction of total plant efficiency.EFFECT: reduced required number of pumps and their summary efficiency with provision of discharge of the same volume of products, provision of the possibility to back up pumps by connection of at least one additional pump to one and more main pumps and minimisation of product mixing during their serial pumping by one and the same pump.14 cl, 6 dwg |
