Inventor (s): Bohdan Romanyshyn y César Romero Franco

Description of the invention

The water saving line of the invention is of the type comprising a general entry from the general supply network, with a non-return valve. From this arises a cold pipe (that is, provided and connected to circulate cold water) with a bypass to a heater or water boiler that feeds a hot pipe (ie, planned and connected to circulate hot water on demand). In the pipeline, at least one outlet tap is connected to both pipes. To this known variant, the following novel features are added: the tap (at least one) has a thermostat in the hot pipe that controls a deviation of the hot pipe to the cold pipe. If the temperature of the water in the hot pipe is lower than a set value, preferably adjustable, the water in the hot pipe will flow to the cold pipe.

To ensure that the hot pipe is at higher pressure, when the heater does not have the means to do so, the pipeline has an auxiliary pump in the hot pipe. Normally it will be at the heater outlet, but it may be at another point in the hot pipe.

The thermostat and diverter assembly can be incorporated into the body of the faucet or form additional equipment connected to the faucet.

In a preferred embodiment, the bypass has a non-return valve.

Object of the invention

In residences, shops and other facilities, there is a drinking water inlet that goes on the one hand to the outlets of "cold" water, that is to say without heating, and on the other hand to a heater or boiler. From that boiler or heater (hereinafter only "heater") there is a new pipe that carries "hot" water, that is, at a higher temperature than the input, to the different exits or faucets.

However, in the morning or when a hot water outlet has not been used for a long time, the water in the pipe has cooled down so it is not useful. The user must let the contents of the pipeline go out until the water leaving the heater at that moment reaches the outlet. In some installations it can cause the waste of several liters of water.

One method of avoiding that waste is to store the "chilled" water in a tank (that is, hot water that is now at a lower temperature). From that deposit you can fill the tanks, use for irrigation… So that water is used. However, unless complex equipment is installed, emptying the tank must be manual.

The present invention relates to a cold and hot water pipe, which is configured and has elements that allow saving water. 

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