Floor drain

Abstract

The invention relates to a floor drain comprising a drain compartment having a bottom, at least one side and an open upper portion. The bottom and the at least one side together define a space to collect waste water. The bottom comprises an opening for a drain trap. The floor drain further comprises a heat exchanger element, receivable in the space of the drain compartment, for transferring heat present in the waste water to fresh water. The heat exchanger element is provided with a first connection and a second connection. The first connection and the second connection are arranged inside the space of the drain compartment. A first conduit is connected to the first connection and a second conduit is connected to the second connection.

1 . A floor drain, comprising;
 a drain compartment having a bottom , at least one side and an open upper portion, wherein the bottom and the at least one side together define a space to collect waste water and wherein the bottom comprises an opening for a drain trap; and   a heat exchanger element, placed in the space of the drain compartment, for transferring heat present in the waste water to fresh water, which heat exchanger element is provided with a first connection and a second connection,   wherein the first connection and the second connection are arranged inside the space of the drain compartment, a first conduit is connected to the first connection, and a second conduit is connected to the second connection.   
     
     
         2 . The floor drain according to  claim 1 , wherein
 the first conduit is arranged to have fresh water having a first temperature and that the second conduit is arranged to have fresh water having a second temperature.   
     
     
         3 . The floor drain according to  claim 2 , wherein the heat exchanger element is pivotably arranged between a first position and a second position. 
     
     
         4 . The floor drain according to  claim 1 , wherein the drain compartment comprises at least one straight side. 
     
     
         5 . The floor drain according to  claims 4 , wherein the heat exchanger element is pivotable about an axis, which axis is substantially parallel with the at least one straight side of the drain compartment. 
     
     
         6 . The floor drain according to  claim 3 ,
 wherein the first conduit for fresh water having a first temperature and the second conduit for fresh water having a second temperature comprise a flexible material.   
     
     
         7 . The floor drain according to  claim 3 , further comprising a partition wall removably arranged within the space of the drain compartment and comprising at least one waste water outlet and a drain control unit having walls encircling the at least one waste water outlet, wherein the walls are protruding upward from the partition wall and wherein the walls are protruding above the heat exchanger element when the heat exchanger element is arranged in the first position. 
     
     
         8 . The floor drain according to  claim 1 , further comprising a cover removably arranged upon the open upper portion of the drain compartment and provided with at least one first opening via which waste water is arranged to enter the space of the drain compartment. 
     
     
         9 . The floor drain according to  claims 7 , wherein the first opening for waste water in the cover is orientated in relation to the at least one waste water outlet in the partition wall such that flow of waste water in the space of the drain compartment is directed in a direction essentially opposite to the direction of the fresh water in the heat exchanger element. 
     
     
         10 . The floor drain according to  claim 1 , further comprising a waste water guiding element removably arranged within the space of the drain compartment and arranged to slope downwards towards the heat exchanger element, with an angle in relation to the open upper portion of the drain compartment, and provided with at least one second opening via which waste water is arranged to enter the space of the drain compartment, wherein the at least one second opening is arranged in a lowermost part of the waste water guiding element. 
     
     
         11 . The floor drain according to  claim 7 , wherein the at least one second opening for waste water in the waste water guiding element is orientated in relation to the at least one waste water outlet in the partition wall such that flow of waste water in the space of the drain compartment is directed in a direction essentially opposite to the direction of the fresh water in the heat exchanger element. 
     
     
         12 . The floor drain according to  claim 10 , wherein the angle is preferably between about 0.01° and about 15°. 
     
     
         13 . The floor drain according to  claim 10 , wherein a plurality of second openings are arranged in a row. 
     
     
         14 . The floor drain according to  claim 1 , further comprising a drain trap arranged in connection to the at least one waste water outlet. 
     
     
         15 . The floor drain according to  claim 1 , wherein the fresh water inside the heat exchanger element is tap water. 
     
     
         16 . The floor drain according to  claim 1 , wherein the second conduit for fresh water having a second temperature is connected to a water valve or a mixer valve and/or a water heater.