US 12,228,293 B2
Heating system
Sridhar Deivasigamani, Peoria, IL (US); and Sivaprasad Akasam, Dunlap, IL (US)
Assigned to Intellihot, Inc., Galesburg, IL (US)
Filed by Intellihot, Inc., Galesburg, IL (US)
Filed on Sep. 10, 2020, as Appl. No. 17/016,471.
Prior Publication US 2022/0074604 A1, Mar. 10, 2022
Int. Cl. F24D 17/02 (2006.01); F24D 17/00 (2022.01); F24D 19/10 (2006.01); F24H 1/12 (2022.01); F24H 7/02 (2022.01)
CPC F24D 17/02 (2013.01) [F24D 17/0005 (2013.01); F24D 17/0073 (2013.01); F24D 19/1054 (2013.01); F24H 1/121 (2013.01); F24H 7/02 (2013.01); F24D 2200/123 (2013.01)] 16 Claims
OG exemplary drawing
 
1. An under sink heating system configured to be adapted to a sink drain of a sink, said under sink heating system comprising:
(a) a drainage tube comprising a J bend drainage tube configured to be adapted to the sink drain, said J bend drainage tube comprises a curved tube portion for holding contents disposed through the sink drain into said drainage tube;
(b) a water conductor comprising an inlet and an outlet, said inlet configured for receiving a domestic water flow;
(c) a valve configured to cooperate with a fluid moving device which together operable to selectively circulate a heat transfer fluid in at least one of a first fluid circuit and a second fluid circuit;
(d) a heat exchanger and a blower operable to supply a stream of fluid over said heat exchanger, wherein said heat exchanger is fluidly connected to said first fluid circuit, wherein said heat exchanger being disposed to transfer heat between said heat transfer fluid and said heat exchanger whereby heat is transferred between said heat transfer fluid and said stream of fluid in an ambient under the sink over said heat exchanger;
(e) a coil fluidly connected to said second fluid circuit, wherein said coil is configured to be disposed on said drainage tube to transfer heat between said heat transfer fluid and said coil, whereby heat is transferred between said heat transfer fluid and the contents of said drainage tube;
(f) a final heat exchanger configured for thermally coupling said first fluid circuit and said water conductor and thermally coupling said second fluid circuit and said water conductor, whereby heat is transferred between said heat transfer fluid to the domestic water flow;
(g) a tank comprising a bath, each of a portion of said first fluid circuit and a portion of said second fluid circuit disposed through said bath of said tank is a heat exchanger being disposed to transfer heat between said bath and said heat transfer fluid, wherein said bath comprises a phase change material (PCM); and
(h) a control device operable to control said fluid moving device to circulate said heat transfer fluid in said first fluid circuit, said blower and said valve by disposing said valve in a first position in response to a first hot water demand, said control device being further operable to control said fluid moving device to circulate said heat transfer fluid in said second fluid circuit and said valve by disposing said valve in a second position in response to a second hot water demand, said control device being further operable to control said fluid moving device to circulate said heat transfer fluid in said first fluid circuit, said blower and said valve by disposing said valve in a first position in response to a first thermal charging demand and said control device being further operable to control said fluid moving device to circulate said heat transfer fluid in said second fluid circuit and said valve by disposing said valve in a second position in response to a second thermal charging demand.