Heat exchange system for recycling waste heat

Heat exchange – Regenerator – Checker brick structure

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165DIG12, 165 35, 165 40, 126299R, 237 67, 16510421, F28D 1500

Patent

active

043146015

ABSTRACT:
A heat exchange system for recycling waste heat, such as that leaving a building stack or flue, to supply heat where needed, such as to incoming fresh air or to tempered stored water of the building water storage system, wherein the building has a source of heat at a constant temperature (such as a furnace, a cooking facility, or a washing facility), from which waste heat is involved in the materials to be conveyed therefrom for discharge from the building, in which a closed circuit heat generated refrigerant flow type refrigeration system is established including a heat recovery coil in heat exchange relation to the waste heat, a heat discharge coil in heat transfer relation to the fluid to be heated at a level above that of the heat recovery coil, and a refrigerant receiver at a level adjacent the level of the heat recovery coil, with the system being charged with a halogenated hydrocarbon type refrigerant to bring the liquid level of the charge within the receiver above the level of the heat recovery coil and below the level of the heat discharge coil. The heat transferred to the refrigerant at the heat recovery coil is utilized as the sole means for freely cycling the refrigerant through the system heat pump fashion, with a liquid phase portion of the refrigerant being continuously recirculated between the receiver and the heat recovery coil, and heat charged vaporized refrigerant being supplied from the receiver to the heat discharge coil and returned in heat depleted liquid phase form to the receiver.

REFERENCES:
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patent: 1619660 (1927-03-01), Field
patent: 1765038 (1930-06-01), Wait
patent: 2083611 (1937-06-01), Marshall
patent: 2522373 (1950-09-01), Jodell
patent: 2779714 (1957-01-01), Keith
patent: 3194308 (1965-07-01), Haried
patent: 3645329 (1972-02-01), Treherne et al.
patent: 3749158 (1973-07-01), Szabo et al.
patent: 4084745 (1978-04-01), Jones
patent: 4216903 (1980-08-01), Giuffre

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