Abstract: An air-cooled condensing heat exchanger system (“ACHX”) installed in a fossil power plant flue gas treatment system recovers water and low temperature waste heat from boiler flue gas for advanced coal fired power plant applications. More particularly, the ACHX system recovers water from combustion flue gas by phase change. To recover water from flue gas, the ACHX system uses ambient air from an air intake installed on the stack to cool down the flue gas in the ACHX.

Abstract: An integrated reaction condensing heat exchanger system (“IRCHX”) may be installed in a fossil power plant flue gas treatment system. More particularly, the IRCHX system may be used for recovering water from combustion flue gas by phase change to reduce fresh water consumption in fossil power plants including coal-, oil- and gas-fired plants. To recover water from flue gas, the IRCHX system may be installed in a current flue gas treatment system in a new or existing power plant, which allows power plants to save fresh water consumption up to 20%. Additionally, it benefits: 1) low temperature heat recovery after economizer, 2) lower exhaust temperature of flue gas at stack, 3) lower moisture contents in exhaust flue gas at stack, and 4) reduced acid emission in flue gas at stack.

Abstract: A steam generator including a steam chamber defining an enclosed fluid chamber with a plurality of tubes passing through the steam chamber, a combustion chamber defining a closed fluid chamber and an air channel coupled to a burner, and a heat transfer section defining a closed fluid chamber and an air passage in fluid communication with a vacuum source, in which the burner generates a heated air mixture, the vacuum source draws the heated air mixture from the combustion chamber air channel, through the steam chamber plurality of tubes and through the heat transfer section air passage so as to heat fluid passing through the heat transfer section, the steam chamber and the combustion chamber fluid chamber.

Abstract: Provided is a boiler equipped with a burner capable of realizing a reduction in emission of harmful substances using a liquid fuel such as kerosene or A-type heavy oil. A burner (20) is equipped with a nozzle part (22) spraying a liquid fuel into a combustion chamber (16) in a boiler body (10) formed by using a plurality of water tubes; provided around the nozzle part (22) is an air jetting part (27) constructed to control flow of air jetted from the air jetting part (27) so as to avoid short-passing of a gas produced by the burner (20) through a gas discharge port provided in the boiler body (10).

Abstract: An improved process and article of manufacture to advance heater performance and reduce the cost of delayed coker charge heaters. Such improved performance is realized by routing delayed coker feedstock through a double row, double fired, heating conduit thus creating a channel to contain previously heated flue gas and resulting in the introduction of downflow, backside convective heat transfer to the interior portion of the heating conduit. When replacing the present art's single row coker tubes with the double row heating conduit afforded by the instant invention, the backside convective heat transfer introduced to the interior portion of the heating conduit eliminates the necessity of double firing the present art's single row coker heater tubes to achieve similar results.

Abstract: An improved process and article of manufacture to effectuate pressure reduction in a delayed coker charge heater's radiant heat section outlet and feedstock process coil, by upflowing coker feedstock through a single or double row, single or double fired, feedstock process coil. The innovative upflowing of coker feedstock as disclosed by the present invention allows BFW/Steam injection and vaporizing hydrocarbons to rise in the same flow direction as the coker feedstock, resulting in an enhanced mixing of fluid film and coker feedstock. Such enhanced mixing, in turn, increases heat transfer rates to the feedstock. As coker charge heater burners are commonly located in the bottom of the heater, the lower portion of the heater is typically the location of highest processing temperatures and tube side fouling.

Abstract: A system for the conversion of the potential energy of hydrocarbon fuels to heat, the system being particularly adapted to the use of the available heat in the heating of a fluid, especially water. The system includes a special form of heat transfer device by which the available heat, particularly of natural gas, may be transferred to a water supply in a heat exchange device of special construction.

Abstract: A steam generator is fired by a fossil fuel burner. The generator is shown as producing approximately 80% quality steam to be injected into oil wells to promote secondary recovery. The flame body from the burner is propagated along the longitudinal axis of a horizontally extended cylindrical chamber. Water and/or steam is passed through tubes mounted on the internal walls of the cylindrical chamber in order that they may absorb radiant heat from the flame body. The heat absorbing tubes are divided into groups, or sets, to establish the rate of water and/or steam flow through the tubes. The tubes within each group are extended as a plurality of reaches the length of the cylinder and are joined to each other by 180.degree. bends of that part of the tube between reaches. Each reach of each tube group is arranged on the internal wall of the cylinder to result in uniform exposure of the tube groups to the radiant heat.

Abstract: A central heating furnace has an outer casing, a tube system containing the heat carrying medium and a burner, e.g. an oil-burner, to heat this medium. The tube system is placed along the major part of the inner surfaces of the casing. The burner is so placed, in connection with the furnace, that in operation its flame will be directed vertically downwards and is thereby surrounded by a tube spiral communicating with the tube system containing the heat carrying medium.