Heat exchanger for a shower or bathtub
AssigneeJoulia AG
InventorsReto Schmid, Roman Svaton, Christoph Rusch
Life of this patent
Estimating the term…
Abstract
A heat exchanger for heating fresh water using heat from wastewater in a shower or bathtub. The heat exchanger has a drain pan, a heat exchanger unit that is arranged in the drain pan, and a distributing element for distributing draining wastewater over the heat exchanger unit. The heat exchanger unit has multiple tube portions that follow one another sequentially and are connected to one another by diverting portions. Each two horizontally running tube portions that follow one another and that are thus connected by a deflecting portion are arranged one over the other, and wastewater, which is dripping or flowing down, is sprinkled on or flows over the tube portions one after the other.
Claims21
A heat exchanger for heating fresh water by way of heat from waste water, at a shower or bath tub, comprising:
- a drain trough,
- at least one heat exchanger unit which is arranged in the drain trough and is provided for the connection into a fresh water feed, and
- a distribution element which is arranged for distributing running-off water over the at least one heat exchanger unit,
- wherein the at least one heat exchanger unit comprises several sequentially successive pipe sections which are connected to one another by deflection sections and which run essentially horizontally, given an orientation of the heat exchanger as in operation of the heat exchanger, wherein in each case, two horizontally running, successive pipe sections, thus ones which are connected to one another by a deflection section, are arranged above one another, and one after the other are subjected to being sprinkled or flowed over by dripping down or running down waste water, and
- further comprising a double-walled separation between regions leading fresh water and regions leading waste water, by way of an intermediate space, wherein the pipe sections are formed by double-wall pipes, and wherein
- a connection unit is present, wherein an inner region of the connection unit is separated from waste-water-leading regions in a fluid-tight manner, and conduits leading fresh water, in particular pipes and/or reinforced hoses, are arranged in the inner region of the connection unit in a single-walled manner, and the inner region is connected to an intermediate space of the double-wall pipes.
A heat exchanger for heating fresh water by way of heat from waste water, at a shower or bath tub, comprising:
- a drain trough,
- at least one heat exchanger unit which is arranged in the drain trough and is provided for the connection into a fresh water feed, and
- a distribution element which is arranged for distributing running-off water over the at least one heat exchanger unit,
- wherein the at least one heat exchanger unit comprises several sequentially successive pipe sections which are connected to one another by deflection sections and which run essentially horizontally, given an orientation of the heat exchanger as in operation of the heat exchanger, wherein in each case, two horizontally running, successive pipe sections, thus ones which are connected to one another by a deflection section, are arranged above one another, and one after the other are subjected to being sprinkled or flowed over by dripping down or running down waste water, and
- wherein connecting pieces or connection pieces are present, which each comprise one or more deflection sections in the form of deflection elements, wherein a deflection element corresponds to a conduit section with a deflection by 180° and the two ends of such a conduit section are connected in each case to a pipe section.
A heat exchanger for heating fresh water by way of heat from waste water, at a shower or bath tub, comprising:
- a drain trough,
- at least one heat exchanger unit which is arranged in the drain trough and is provided for the connection into a fresh water feed, and
- a distribution element which is arranged for distributing running-off water over the at least one heat exchanger unit,
- wherein the at least one heat exchanger unit comprises several sequentially successive pipe sections which are connected to one another by deflection sections and which run essentially horizontally, given an orientation of the heat exchanger as in operation of the heat exchanger, wherein in each case, two horizontally running, successive pipe sections, thus ones which are connected to one another by a deflection section, are arranged above one another, and one after the other are subjected to being sprinkled or flowed over by dripping down or running down waste water, and
- wherein
- a run-in region, a siphon region and a run-off region are arranged in the drain trough, through which regions waste water flows one after the other and in this sequence, on operation of the heat exchanger, wherein
- the run-in region is in air exchange with the surroundings above the heat exchanger,
- the run-off region is in air exchange with a run-off pipe-stub provided for connection to a sewage system, and
- the siphon region prevents air exchange between the run-in region and run-off region and permits the flow of fluid from the run-in region to the run-off region,
- the siphon region at a first side is delimited by a trough wall and at a second side by a damming element,
- the damming element holds back running-off waste water, so that it flows over a distribution element which distributes the waste water over the at least one heat exchanger unit.
Dependencies are inferred from the claim text.