摘要:
A liquid heater such as a direct electrical resistance liquid heater having multiple flow channels is provided with a temperature-sensing element in the form of a wire extending across numerous channels, preferably all of the channels, near the downstream ends of the channels. The resistance of the wire represents the average temperature of the liquid passing through all of the channels, and hence the temperature of the mixed liquid exiting from the heater. A bubble suppressing structure is provided in the vicinity of the wire.
摘要:
The invention describes a tank comprising a solution, dispersion or emulsion for selective catalytic reduction in combustion engines. The tank comprises an electrical resistive heating element immersed in the tank. The electrical resistive heating element comprises at least one heating cord. The heating cord comprises metal filaments. The metal filaments • comprise a copper layer or a layer in a copper alloy, and comprise a surrounding layer in stainless steel, • or comprise a steel layer, surrounded by a layer in copper or in a copper alloy, surrounded by a nickel, zinc or tin layer or a layer of alloys comprising such metals; • or comprise a layer of low carbon or high carbon steel, and comprise a surrounding nickel, zinc or tin layer or layer of alloys comprising such metals, and the heating cord comprises a polymer coating layer.
摘要:
A system for the transmission and conversion of the potential energy of hydrocarbon fuels to available heat, power and light. The system is particularly adapted for use with natural gas, artificial gases or any of the LPG fuels such as propane, butane, etc. According to the system of the invention, the fuel gas is mixed with air preferably in the amount providing the stoichiometric ratio to oxygen and is stored under pressure and ultimately transmitted to burner elements which are hermetically sealed except for the inlet and discharge ports, such as tubes, power sources, such as captive and free piston devices and gas turbines and light sources. The system includes special forms of equipment for mixing and pressurizing the gas and air in the correct ratio and special forms of equipment for establishing and controlling the combustion processes.
摘要:
THE NEW ACIDIC ANTIBIOTIC 18,631 R.P. IS PREPARED BY AEROBICALLY CULTIVATING STREPTOMYCES HYGROSCOPICUS DS 9,751 (NRRL 3418), STREPTOMYHCES ALBOCINERESCENS DS 21,647 (NRRL 3419) OR STREPTOMYCES ROSEOCHROMOGENES, VAR. OSCINTANS DS 12,976 (NRRL 3504) ON AN AQUEOUS NUTRIENT MEDIUM CONTAINING ADDIMILABLE SOURCES OF CARBON, NITROGEN AND INORGANIC SUBSTANCES. THE ANTIBIOTIC IS PARTICULARLY EFFECTIVE AGAINST GRAM-POSITIVE MICROORGANISMS.
摘要:
A burner for use with an induced draft furnace and which satisfies reduced nitrous oxide (NOx) emission standards is disclosed. The burner may employ a mechanical swirler that introduces a rotational vector to the emitted air and fuel mixed by the burner. By introducing the rotational vector, the resulting flame is more stable and sustainable even with the relatively low air flow afforded by an induced system. Such flame stability can be enhanced by positioning the burner directly within an inlet to a heat exchanger and manufacturing the inlet with reception surfaces that form a frusto-conically shaped flame expansion zone. In doing so, a secondary source of air is avoided and NOx emissions are reduced.
摘要:
The invention relates to a heater part, especially for a liquid fuel-operated vehicle water or air heater in the form of a supplementary heater or an auxiliary heater with a burner and a heat-exchanger. According to the invention, at least one part of a fuel heater (1) and at least one part of an electric heater (1′) are provided as a structural unit, in particular in order to retrofit or expand an electrically operated heater (1′) with a heater (1) for fuel operation.
摘要:
Method and equipment are disclosed for production of nitrogen and carbon dioxide by a dual phase combustion of a hydrocarbon fuel and air, the exhaust products of the second phase of combustion being treated in a monoethanolamine absorber by which the carbon monoxide is absorbed and the nitrogen and carbon dioxide separated. The first stage of the dual phase combustion is effected in one or more combustion prime movers or engines and the second phase of combustion is effected by the addition of fuel to the exhaust products of the engine or engines; and a compressor is driven by each engine and the separated gases are separately passed through engine-driven compressors.
摘要:
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 special forms of heat transfer devices by which the available heat, particularly of natural gas may be transferred to a water supply in a heat exchange device of special construction.
摘要:
A water heater using a planar heating element according to the embodiment of the present invention comprises a planar heating pipe coated with a planar heating material; a hot water tank including an upper surface coupled with the planar heating pipe where a first hole and a second hole are formed, a side surface surrounding an outside of the planar heating pipe where an outlet is formed, and an open lower surface; a first header provided at the upper surface to form a first housing; and a second header provided at the other end of the planar heating pipe and the open lower surface to form a second hosing where an inlet coupled with the other end of the planar heating pipe is formed. Wherein the first housing is a space defined by an inner surface of the first header and the upper surface of the hot water tank, and the second housing is a space defined by an outer surface of the planar heating pipe, an inner surface of the hot water tank, and an inner surface of the second head.