SEWAGE PUMPING STATION WITH SYSTEM OF PROTECTION AGAINST HYDRAULIC SHOCK Russian patent published in 2020 - IPC E03F5/22 

FIELD: municipal services.

SUBSTANCE: invention relates to water disposal. Sewage pumping station includes a receiving reservoir, a sewage supply pipeline, at least two pumps connected to pressure pipelines with check valves. Device is additionally equipped with suction pipelines of pumps connecting receiving tank with pumps, at least two pressure water conduits, at least two vertical columns, at least, two opposed flow check valves, connecting manifold connected to at least two pressure water lines with at least two opposite check valves, with at least two pressure lines so that connection points of pressure pipelines and opposite directed check valves coincide. Vertical columns are connected with opposite check valves, check valves are located between pumps and connecting manifold, and opposed flow check valves are installed so that at movement of liquid upwards they are closed, and at movement downwards – they are opened. Vertical columns in upper points of vertical columns are connected to atmosphere at level H≥H_{p wl}+L, where H_{p wl} - difference of elevation marks of upper point of pressure water lines and upper point of connecting manifold, L is the pressure loss in the pressure water line from the point of its connection to the connecting manifold to the elevation point of pressure water conduits.

EFFECT: higher reliability of the device.

1 cl, 2 dwg