摘要:
In a liquid fuel burner wherein a fuel gasifying member is directly supported by a rotary shaft inserted in a main body of the burner for converting liquid fuel into gasified form, a water evaporation chamber of the annular shape is arranged at the corner of a top portion of the fuel gasifying member and filled therein with a water evaporation promoting material. Water is supplied to the water evaporation chamber and quickly converted into water vapor which is ejected into the fuel gasifying member through steam ejection apertures formed in the water evaporation chamber as the fuel gasifying member is rotated and performs the liquid fuel gasifying function, and the gasified fuel and water vapor form a mixture with air supplied under pressure, the mixture being ejected into the main body of the burner to sustain combustion of liquid fuel in gasified form, so that the consumption of thermal energy can be reduced by using water as part of the liquid fuel. Steam ejection apertures may also be formed in an outer wall of the water evaporation chamber to cause excess water vapor to be ejected therethrough into the main body of the burner where it burns with the flames of combustion of gasified fuel. The fuel gasifying member may include formed integrally therewith a skirt disposed at its bottom portion which is formed therein with gas ejection slits and which includes a lower portion received in a gas accumulation chamber formed in the main body of the burner to define a gasified fuel-air mixture passageway between the skirt and the gas accumulation chamber, the main body having a cold air passageway formed in its outer peripheral portion. Thus, a mixture of gasified fuel, water vapor and air can be ejected through the gasified fuel-air mixture passageway and the ejection slits to sustain combustion in a large area.
摘要:
A radiant heater in which the fuel is supplied at an inlet end of a combustion chamber, formed by an imperforate tubular shell, where combustion takes place, and the products of combustion are forced axially in one direction through the tubular shell, which is elongated to provide a substantial heat radiating wall, and out through an outlet end thereof. Surrounding the first shell, is a second tubular shell, which is concentric with the first shell to provide a second substantial heat radiating wall and an annular chamber which receives the products of combustion from the combustion chamber, directs them axially in a reverse direction, and permits them to discharge outwardly through radial outlets provided in said second radiating wall. Combustion is accomplished by a burner which is located at the inner end of the first shell to cooperate therewith and with the second shell in an effective manner to obtain maximum combustion and radiation.
摘要:
Four design variants of a full-flow burner for the thermal regeneration of a particle filter in an exhaust gas aftertreatment system of an internal combustion engine, especially a diesel engine, which is arranged fully in the tailpipe, especially in an expanded, straight coaxial tailpipe section, are suggested according to the present invention. As a result, the flow can enter a particle filter axially, which means simplified design and good temperature distribution. The full-flow burners are preheated by the heat of the exhaust gas of the engine during the start phase. The exhaust gas of the engine cools the burner surface during the phase of burner operation, so that thermal overload is avoided.
摘要:
A gasifier (17) is located at a distance (49) from an air aperture plate (35). At the outlet (42) of the gasifier there is a stationary mixing head (29) having a deflector section (31) and lateral outlets (33). Fuel is supplied coaxially through an opening (55) of the air aperture plate. A flame tube (21) surrounds the gasifier (17) and an electric heater (39) leaving an annular space (40). When the burner is started up, the electric heater (39) is switched on until the gasifier has the necessary operating temperature. Fuel is then supplied. The fuel/air mixture is ignited by an electrode (65). The flame tube (21) extends to the end of the mixing head (29), or only a little therebeyond. A flame is formed at the outlets (33) that touches the flame tube after a short travel, then emerges from it and expands. Because the flame can immediately expand, only little NO.sub.x is formed. A portion of the hot combustion gases is recirculated through the annular space (40) and sucked into the gasifier to heat the gasifier (17) after the shutoff of the electric heater (39).
摘要:
A gas turbine engine combustion apparatus for vaporizing fuel comprises a flame tube having an upstream end wall in which are located a number of flow guides having associated fuel ducts. In operation, fuel and air flow through the U-shaped duct in each guide and the fuel flows onto the inside of the end wall which acts as a vaporizing surface. The exterior of the end wall is cooled by a flow of air from the engine compressor. The invention avoids the need of vaporizing tubes within the flame tube.
摘要:
A vaporizing type liquid fuel combustion apparatus comprising a pot burner, vaporizer for vaporizing liquid fuel provided above the pot burner, a fuel supply pipe for supplying the liquid fuel to the vaporizer, a vaporized gas combustion burner which has a gas chamber connected to the vaporizer and which is arranged to heat the vaporizer, and a blower for supplying air to the pot burner and the vaporized gas combustion burner.
摘要:
A hot water heater has an inlet for liquid fuels, a plurality of inlets forresh air, an inlet for a fluid to be heated, at least two combustion stages traversed by the fuel-air mixture with catalytic combustion chambers surrounded at least partially by at least one fluid chamber filled with fluid and with an offgas heat exchanger for fluid to be heated. The heat exchanger is traversed by the offgas escaping from the combustion chambers. The first combustion stage has an evaporation chamber that has on its outside surface, at least a partial catalyst layer.