Heat exchanger

摘要

A heat exchanger for a shower tray can be arranged in the bottom of the shower tray for the heat recovery from wastewater so as to heat fresh water. To this end, the heat exchanger has a planar cover plate as the drain surface over which the wastewater drains. The cover plate forms the bottom of the shower tray, over which a lid that can be removed without the use of tools is arranged as a tread plate. The heat exchanger preferably includes a distributor element, which is arranged for distributing the wastewater over the drain surface. The distributor element is preferably a retaining element, which retains the wastewater at an upper edge of the drain surface and forms an overflow along the upper edge.

主权项

1. A shower tray comprising:
a heat exchanger, wherein the heat exchanger is arranged below the shower tray for heat recovery from waste water for heating fresh water, wherein a first heat exchanger surface is in contact with the waste water and a second heat exchanger surface is in contact with the fresh water, wherein the first heat exchanger surface forms the base or a part of the base of the shower tray, wherein the first heat exchanger surface serves as a run-off surface for the waste water over which the waste water flows, and wherein the first heat exchange surface is planar, a lid is arranged above the first heat exchanger surface and serves as a foot surface or a foot plate for a user, the lid is inclined in one direction, and the first heat exchanger surface is inclined in a direction opposite to the one direction.