PL397546A1 - Retention tank with gravity flushing system - Google Patents

Abstract

The subject of the invention is a tank with a gravitational rinsing system, the main advantage of which is the use of sewage as a rinsing medium. Retention tank containing a flow chamber, one or more accumulation chambers (2), coupled to each of the accumulation chambers (2), the external flushing chamber is characterized by having an internal flushing chamber (3) located in the space of the accumulation chamber (2) supported on supports (14) with a height of 0.5 to 1.5 m above its bottom (8), located outside the central part of this chamber (2) towards its rear wall (22). The washing chamber (3) from the side of the flow chamber (1) is connected to it by a trough (12), the bottom of which at the entrance to its internal space is located at the height of maximum filling and also at this level from the opposite wall of this chamber (3) connected there is a trough (21) connecting it with the external flushing chamber (4) located at a height of 0.5 to 1.0 m above the bottom (8) of the accumulation chamber (2) of the tank. In the wall (15) of the internal washing chamber (3) from the flow chamber side (1) there are windows (16) with valves, which are used to dump accumulated sewage. The retention tank is also characterized by the fact that the upper periphery of the inner flushing chamber (3) and the external flushing chamber (4) constitute the support plate of the retention tank floor.