Heat exchange – Structural installation
Patent
1995-01-17
1998-04-21
Ford, John K.
Heat exchange
Structural installation
165154, 165909, F28D 710, F24H 112
Patent
active
057408572
ABSTRACT:
This invention for use with a water-using system is directed to a heat recovery and storage device adapted to recover heat from warm waste liquid and transfer it to cooler supply water where the flows of both waste liquid and supply water are intermittent and not necessarily contemporaneous, and to store the warmed supply water until required for use. This invention comprises an internal high-thermal-conductivity waste liquid transmission pipe enclosed by a low-thermal-conductivity supply water reservoir pipe, the ends of the resulting storage reservoir being enclosed by end-plates incorporating an inlet and a discharge coupling means for installing the device into the waste liquid pipe of a building in place of a section of that pipe, the inlet and outlet coupling being so aligned that the internal surfaces of the waste liquid pipe from the building, the inlet coupling, the heat recovery and storage device's internal waste liquid transmission pipe, the outlet coupling, and the waste liquid outlet pipe to the waste disposal means, respectively are aligned without obstruction so that the waste liquid flow is not impeded. The endplates may also be adapted to accommodate other pipes, such as that leading to the condenser of an airconditioner, from which heat may be transferred to the supply water. A cool supply water injection means is disposed in the lower portion of the reservoir and a tapping means for warmed supply water is disposed in the upper portion thereof.
REFERENCES:
patent: 2047757 (1936-07-01), Welch
patent: 3802499 (1974-04-01), Garcea
patent: 4256170 (1981-03-01), Crump
patent: 4304292 (1981-12-01), Cardone et al.
patent: 4352391 (1982-10-01), Jonsson
patent: 4619311 (1986-10-01), Vasile et al.
patent: 5287913 (1994-02-01), Dunning et al.
Harris, Jr. Wilfred L.
Thompson John G.
Ford John K.
Parker Sheldon H.
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