Installation for recycling sanitary water

Abstract

The present invention relates to an installation for recycling waste water coming from a sanitary equipment ( 22,23 ) and for reusing it to flush at least one toilet bowl ( 1 ), equipped with a system for saving flushing water fitted above the toilet and comprising a tank ( 3 ), a water-flushing mechanism ( 25 A, 24,17,14 ) positioned in the tank ( 3 ), a first pipe ( 21,7,15 ) to supply said waste water to the tank ( 3 ), a second pipe ( 13 A) to supply running water to the tank, a filter ( 18,20 ) and a pump ( 19 ) positioned in the first pipe, a water-level sensor ( 11 ) and a controlled stop valve ( 13 ), wherein the flushing mechanism comprises a vertical-action drain valve ( 25 A) positioned inside a flow-control tube ( 27 ) that extends over the entire height of the tank ( 3 ) and only connected to the rest of the tank ( 3 ) by one or more apertures ( 35 ) drilled in the side of said tube ( 27 ).

1 . Installation for recycling waste water from a sanitary equipment ( 22 , 23 ) and for reusing it to flush at least one toilet bowl ( 1 ), equipped with a system for saving flushing water fitted over the toilet, said water-saving system comprising a tank ( 3 ) that may comprise a water storage, a water-flushing mechanism ( 25 A, 24 , 17 , 14 ) positioned in the tank ( 3 ) to provide the water for flushing the toilet bowl ( 1 ), a first pipe ( 21 , 7 , 15 ) for supplying said waste water to the tank ( 3 ), a second pipe ( 13 A) for supplying the running water to the tank, a filter ( 18 , 20 ) and a pump ( 19 ) positioned in the first pipe, a water-level sensor ( 11 ) to control the level of used-water remaining in the tank, a controlled stop valve ( 13 ) to control the intake of running water, wherein the water-flushing mechanism comprises a vertical-action drain valve ( 25 A) positioned inside a flow-control tube ( 27 ) that extends over the entire height of the tank ( 3 ), and only connected to the rest of the tank ( 3 ) by one or more apertures ( 35 ) drilled in the side of said tube ( 27 ). 
     
     
         2 . Installation as in  claim 1 , wherein the drain valve ( 25 A) is automatically controlled by an actuator. 
     
     
         3 . Installation as in  claim 2 , wherein the actuator is a geared motor ( 14 ) linked to the valve ( 25 A) by means of a rod ( 24 ) and of a chain ( 17 ), and equipped with a cam and with positioning end stops. 
     
     
         4 . Installation as in  claim 1 , wherein the level sensor ( 11 ) comprises a probe connected to the controlled stop valve ( 13 ). 
     
     
         5 . Installation as in  claim 1 , wherein the first pipe for supplying waste water is bent so as to provide an outlet exiting at the bottom of the tank ( 3 ). 
     
     
         6 . Installation as in  claim 1 , wherein the sanitary equipment generating the waste water comprises at least a bathtub, a shower, a washbasin or a combination of these, the capacity of the tank ( 3 ) being over 150 liters. 
     
     
         7 . Installation as in  claim 6 , wherein, in the path of the waste water between the sanitary equipment ( 22 , 23 ) and the tank ( 3 ), the filter ( 18 , 20 ) is positioned upstream from the pump ( 19 ). 
     
     
         8 . Installation as in  claim 1 , wherein the filter comprises a filter cage ( 20 ) for coarse filtering, a level probe ( 18 ) with a float and “reed” contact, and an outlet towards the discharge for overflows. 
     
     
         9 . Installation as in  claim 8 , wherein the filter cage ( 20 ) comprises a preferably solid product for treating waste water that progressively dissolves when the sanitary equipment is drained. 
     
     
         10 . Installation as in  claim 1 , wherein the pump ( 19 ) is a lift pump equipped with a switch for automatic start-up as soon as a predetermined level of water is reached, a flapper and a vent. 
     
     
         11 . Installation as in  claim 1 , wherein it comprises a control system comprising an electronic terminal with a microcontroller ( 40 ). 
     
     
         12 . Installation as in  claim 11 , wherein the control system comprises a means for regulating or adjusting the volume of water provided by the activation of the flush. 
     
     
         13 . Installation as in  claim 11 , wherein the control system comprises a means for controlling the filling of the tank with running water or with waste water and for checking and displaying the status of the electronic part of the installation, pump and filter. 
     
     
         14 . Installation as in  claim 11 , wherein the terminal ( 40 ) comprises a display ( 41 ), for example a liquid crystal display, that allows to display messages. 
     
     
         15 . Installation as in  claim 11 , wherein the control system is programmed so as to periodically operate the actuator of the drain valve ( 25 A). 
     
     
         16 . Installation as in  claim 1 , wherein the first pipe for supplying waste water comprises a flow regulator. 
     
     
         17 . Installation as in  claim 1 , wherein it comprises an additional pipe ( 8 ) for releasing the overflow from the tank ( 3 ) directly into a drain pipe of the toilet ( 2 ). 
     
     
         18 . Installation as in  claim 1 , wherein the second pipe for supplying running water to the tank is connected, upstream from the controlled stop valve ( 13 ), to a device for collecting rainwater. 
     
     
         19 . Installation as in  claim 1 , wherein the toilet bowl is connected to a forced ventilation device ( 12 ).