Efficient shower tray with a static heat recovery device integrated in its surface, accessible and easy to clean

Abstract

Efficient shower tray with a static heat recovery device integrated in its surface, accessible and easy to clean that channels used water, causing it to run over the outer surface of a flat heat exchanger integrated in the surface of the tray, while cold water which is pre-heated before being mixed circulates inside the heat exchanger, reducing the quantity of hot water required and hence the energy required for heating water. The outer surface over which used grey water runs is accessible and easy to clean, thus ensuring simple and continuous maintenance, and the flat design of the heat exchanger allows the heat exchanger to be mounted flush with a surface, with a reduced height, and to be used without restrictions by persons having reduced mobility. The assembly can accommodate a grey water lifting pump in order to conduct the water for re-use or discharge.

1 . Flat and efficient shower tray, with a flat sandwich panel-type heat recovery device integrated in its surface, placed in a side channel, accessible for cleaning, having:
 A shower platform ( 20 ) that receives the water from the shower and directs it by slopes towards the side water-flow channel ( 30 ).   The side water-flow channel ( 30 ) is located on any side of the shower platform ( 20 ).   Located in the side water-flow channel there is a heat exchanger, flat sandwich panel-type heat exchanger ( 40 ) that only comes into contact with the grey water on the upper side of the heat exchanger, which has a cold water inlet ( 50 ) and a preheated water outlet ( 60 ).   The grey water used in the shower runs along the water-flow side channel ( 30 ), in contact with the upper part of the flat sandwich panel-type heat exchanger ( 40 ), toward the grey water evacuation and collection point ( 70 ).   The grey water from the shower, leaves along its route part of the energy in the network water, which enters through the cold water inlet ( 50 ) and exits for use through the preheated water outlet ( 60 ).   
     
     
         2 . Flat and efficient shower tray, with a flat sandwich panel-type heat recovery device integrated in its surface, placed in a side channel, accessible for cleaning, according to  claim 1 , characterised in that the channel is further covered with a front lid ( 80 ) and another side lid ( 90 ) which are removable for access and cleaning of the flat sandwich panel-type heat exchanger ( 40 ).
 The function of the lids ( 80 ) and ( 90 ) is aesthetic and to provide the shower tray assembly with a flat surface.   
     
     
         3 . Flat and efficient shower tray, with a flat sandwich panel-type heat recovery device integrated in its surface, placed in a side channel, accessible for cleaning, according to  claim 1 , characterised in that it further comprises a grey water evacuation and collection point ( 70 ) which houses a grey water lifting pump ( 71 ), to direct it to the drain and/or a grey water collection tank ( 100 ).