Liquid heaters and vaporizers – Indirectly heated separate injected fluid – Submerged flame
Patent
1980-04-22
1982-02-02
Yuen, Henry C.
Liquid heaters and vaporizers
Indirectly heated separate injected fluid
Submerged flame
122 13R, F22B 102
Patent
active
043134009
ABSTRACT:
A metallic tank having an insulated interior is disclosed which exhibits unique features to enable the welding of the tank sections together without damage to the insulation. The insulating lining is installed in the multi-piece metallic tank prior to the welding of the tank sections together. A heat shield is provided between the weld area and the insulating liner to prevent damage to the nonmetallic liner during the welding process. The method of assembly allows the economical and rapid fabrication of lined metallic tanks without fear of damaging the lining material. Also, an indirect fired water heater which has a tube heat exchanger in the lined metal tank with the heat shield. The inlet and exit lines of the heat exchanger pass through a bottom plate of the tank. The tank, in such case, contains potable water which is heated by contact with the heat exchanger located within the vessel. Hot boiler water passes through the heat exchanger to heat the water in the vessel. Fittings installed through the top and/or bottom portion of the vessel wall facilitate the drawing off of the heated water and the filling of the vessel with cold water.
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Lane Joseph A.
Walker Robert
Amtrol Inc.
Yuen Henry C.
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