Liquid heaters and vaporizers – Film
Patent
1979-12-05
1981-07-14
Yuen, Henry C.
Liquid heaters and vaporizers
Film
122 40, 122183, 122460, F22B 2700
Patent
active
042780500
ABSTRACT:
Steam is generated by moving liquid into contact with a (pre-heated) heat retaining substance, typically metal. The heat retaining subtance is maintained at essentially a predetermined temperature by a heat responsive switch that electrically commences and terminates the combustion of fuel for heating the heat retaining substance. Fluid is moved into contact with the heat retaining substance in response to pressure changes in the apparatus so that the pressure within the apparatus is maintained at essentially a predetermined pressure. Superheated gas (steam) may or may not be formed in the process. An expanded surface area for heating the heat retaining substance is provided; an expanded surface area for heating fluid by the heat retaining substance is provided; and an expanded surface area for heating liquid by superheated gas, if present, is provided for generation of steam. Typically an annular combustion chamber is provided and alternate fuels may be used including liquid fuel, gaseous fuel, and/or powdered solid fuel which is mixed with a gaseous substance (air or concentrated nitrogen) and injected into the combustion chamber. Combustion may take place in the presence of air or concentrated oxygen. A molecular air separator may be used for providing concentrated oxygen and/or concentrated nitrogen.
REFERENCES:
patent: 1090779 (1914-03-01), Dailey
patent: 1527740 (1925-02-01), Lipshitz
patent: 1616143 (1927-02-01), Schnepp
patent: 1706360 (1929-03-01), Newhouse
patent: 1802578 (1931-04-01), Schnepp
patent: 1806216 (1931-05-01), Plummer
patent: 2033185 (1936-03-01), Dodd
patent: 2790428 (1957-04-01), Buttler
patent: 3607117 (1971-09-01), Shaw
patent: 3636929 (1972-01-01), Sanders
patent: 3723047 (1973-03-01), Bandelet de Livois
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