Plant for desalinating water of a water supply system and method for desalinating water of a water supply system by means of said plant

Abstract

Plant for desalinating water of a water supply system, which comprises one or more tanks for accumulating water (2) in an immiscible manner, in order to store a softened supply thereof, provided with a first inlet connection (3) and with a first outlet connection (4) respectively connected to a feeding pipe (5) connected to the water supply system (50) and to an extraction pipe (6) for supplying users. The plant (1) also comprises a filtering unit (10) for water softening, for example obtained with a flow-through condenser (10") or with a reverse osmosis membrane filter (10'), connected in parallel to the tank (2) with second inlet connection (1 1) and second outlet connection (12) respectively hydraulically connected to the first inlet connection (3) and to the first outlet connection (4) of the tank (2). Circulating means (13) are provided which can be activated to force at least one water flow to be treated to pass through the filtering unit (10), producing a filtered water flow, which is progressively stored in the tank (2) according to a filling direction (VI) thereof. Operatively, the feeding pipe (5) of the water supply system (50) forces, when the user requests water, a water flow intended for use to flow through the tank (2), causing the at least partial evacuation of the filtered water volume that was stored therein in an immiscible manner, in an evacuation direction (V2) opposite the filling direction (VI) with which the filtered water flow had been previously stored in the tank 2.

Description

technical field [0001] According to the preambles of the respective independent claims, the invention relates to a device for desalination of water of a water supply system and in particular a method of desalination of water of a water supply system using said device. [0002] The devices and methods described above are primarily intended for use in a domestic environment to soften water from a waterworks distributed throughout the water supply system. [0003] In such domestic environments, it is often necessary to use water with a low mineral content (i.e. water with a low salt content) for food use and above all for drinking, as well as for specific applications such as washing machines, especially for dishwashers and washing machines). Drinking water is usually purchased bottled, while water for specific applications is usually softened by means of suitable devices located inside or outside the household appliance. Very hard water creates limescale deposits in sanitary s...

AI Technical Summary

Problems solved by technology

[0023] A further disadvantage of known types of filtration equipment is the low softened water production capacity unless very large and expensive equipment is used

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