FIELD: pumping systems.
SUBSTANCE: design solutions are provided for the elimination of following four essential disadvantages of a traditional structure of a pump system, namely: (1) unexpected failure of a pump in a structure with a single pump, which can lead to costly damage caused by water; (2) danger of fatal high-power electric shock in case of flooding; (3) power outages from a power grid, and absence of energy supply for maintenance required pumping power, which leads to the damage caused by water; (4) unpleasant smell of stale water in a well after the period of low flooding speed with or without pumping activation.
EFFECT: principles of proposed structures described in the present document can completely eliminate four above-mentioned essential disadvantages of a structure.
21 cl, 5 dwg
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