FIELD: measurement equipment.
SUBSTANCE: system is proposed to select and account for unloading of liquid products with provision of redundancy, comprising at least two units for selection and accounting of liquid products, including a header, connected with at least two supply pipelines for supply of at least one product, a locking facility of pipelines, which provides for opening and closing of supply pipelines for supply of at least one product into the header, a filling manifold connected with the header and providing for supply of the product from the header to the product filling device into a consumer tank, a measurement facility to measure product flow rate, installed in the filling manifold downstream the header and made as capable of determining product flow rate, and a reserve measurement line comprising a reserve measurement facility to measure product flow rate and connected by piping connection lines having locking facilities, with filling manifolds of each unit upstream and downstream the measurement facilities, placed in the filling manifold of each unit. The system is made as capable of emptying headers and filling manifolds of each unit and the reserve measurement line by self-flow via the filling manifold in at least one units arranged as descending relative to headers and reserve measurement line. Other versions of the system may use units having other design.
EFFECT: due to arrangement of the measurement facility downstream the header, the number of necessary measurement facilities may be reduced, usage of the reserve measurement line makes it possible to provide for reliable and continuous operation of the system.
38 cl, 18 dwg
