Device for recovering heat from wastewater, thermal system including such a device, and method
OwnerAlain Moureinventor
Life of this patent
Estimating the term…
Abstract
This heat recovery device is of the type comprising a vat for holding wastewater and a heat exchanger comprising at least one heat exchange plate comprising two opposite faces and an inner pipe for circulation of a heat transfer fluid between the two surfaces. According to one aspect of the invention, the or each plate is arranged in a heat exchange compartment of the vat so that the wastewater circulates substantially vertically from bottom upwards along the two opposite faces of the or each plate between an inlet of the heat exchange compartment located in the lower portion and an outlet of the heat exchange compartment located in the upper portion. Application to thermal systems with heat pump.
Claims13
1-11. (canceled)
A heat recovery device for recovering heat from wastewater comprising a vessel for the retention of wastewater and a heat exchanger having at least one plate including a two sided heat exchange and an opposite inner pipe for circulating a heat transfer fluid between the two sides, wherein each plate is disposed in a heat exchanger compartment of the tank so that the wastewater flows substantially vertically from bottom to top along both sides of the heat exchanger or opposite of each plate between an inlet of the heat exchanger located at the bottom and an outlet of the heat exchanger compartment located at the top.
The heat recovery device according to claim 2, wherein the inner pipe and the plates of a group of plates are arranged in the same heat exchanger compartment and are connected in parallel to fluidly supply coolant.
A method for recovering heat from waste water, the wastewater being circulated substantially vertically from a bottom area to a top area along two opposite sides of a heat exchanger plate including a conduit for internal circulation of a heat transfer fluid between the two opposite sides of the plate heat exchanger.
Dependencies are inferred from the claim text.