초록 ▼

A heat exchanger for use with a pottery kiln or the like includes a plurality of tubes for carrying air aligned by and arrayed in groups in a vertical array from the cool end to the hot end of the flue of the kiln. Connecting passageways are provided vertically between successive groups of tubes, fo

A heat exchanger for use with a pottery kiln or the like includes a plurality of tubes for carrying air aligned by and arrayed in groups in a vertical array from the cool end to the hot end of the flue of the kiln. Connecting passageways are provided vertically between successive groups of tubes, for directing air from each group of tubes through the next hotter group, to heat the air gradually and in stages as it passes therethrough. As many sets of progressively hotter tubes may be used as required for raising the air therein to a desired temperature. Also, the number and size of tubes may vary overall as well as from group to group, according to the size of kiln and temperature to which the air is to be raised. The final group of tubes is provided with a connection to the combustion chamber of the kiln for mixing therein with fuel to provide flame to the firing chamber thereof. A blower is provided at the inlet of the first group of tubes for moving the air downward through the tubes to be heated and to confine mixing of air and fuel and combustion thereof to the combustion chamber.

대표청구항 ▼

A pottery kiln comprising a firing chamber, a combustion chamber including fuel supply means and air supply means and connected with said firing chamber for providing flame thereto, first means comprising flue means having a hot end thereof communicating with said firing chamber and a cool end commu

A pottery kiln comprising a firing chamber, a combustion chamber including fuel supply means and air supply means and connected with said firing chamber for providing flame thereto, first means comprising flue means having a hot end thereof communicating with said firing chamber and a cool end communicating with outside air for providing a draft to said firing chamber and for carrying exhaust therefrom, and second means comprising air passageway means in thermal contact with said flue means for heating air in said passageway means, said passageway means including air inlet means adjacent said cool end of said flue means and air outlet means adjacent said hot end of said flue means, said air outlet means comprising said air supply means for said combustion chamber, blower means for moving air through said passageway from said air inlet means to said air outlet means for providing heated air to said combustion chamber to facilitate combustion with said fuel therein and for confining mixing and combustion of said air with fuel to said combustion chamber and wherein one of first and second means includes an elongate substantially vertical chamber and the other of said first and second means includes a plurality of tubular members extending substantially horizontally across said chamber at vertically spaced intervals along its vertical length and means interconnecting vertically adjacent ones of said tubular members for heating said air substantially in stages as it passes in thermal contact with said flue means from said cool end to said hot end of said flue means.