摘要:
The intake fuel charge of an internal combustion engine is heated by utilizing the heat from the exhaust gases which are controlled by a valve mounted on a shaft having a counterweight secured to the shaft to control rotation thereof. A stopper which is engaged by the counterweight is provided for limiting the extent of rotation of the shaft and a spiral bimetallic member is arranged with its inner end secured to the shaft and with its outer end adapted to engage the stopper during engine warm up at relatively low ambient temperature conditions. An engagement member is mounted on the bimetallic member to engage the stopper when the second end of the bimetallic member moves in the direction opposite the direction whereby it would normally engage the stopper. The engagement member may be mounted a distance spaced from the outer end or it may be secured in back-to-back relationship with a second stopper member being provided.
摘要:
A fluidized bed unit in which a grate is disposed in a housing to divide the housing into an upper chamber and a lower chamber. A bed of particulate material including fuel is supported by the grate and extends in the upper chamber. The lower chamber has an inlet for receiving pressurized air for passing through the lower chamber, the grate, and the bed of particulate material to fluidize the particulate material. An electrical heating unit is provided for preheating the air as it passes through the lower chamber to ignite the fuel material during startup.
摘要:
An ignition, warm-up and low-load-stabilization system for furnaces fired by pulverized coal. In conjunction with a system in which pulverized coal is sent directly from a coal mill to a load-bearing nozzle and in which combustion air is brought to the nozzles from an air preheater that uses hot furnace gases to warm the combustion air, ignitor nozzles are provided that are supplied by pipes bearing coal from which the drying air has been separated. Combustion air for the ignitor nozzles is heated by an independent heat source that heats the combustion air or a portion thereof to a temperature higher than that of the air supplied by the air preheater. Such a coal-fired ignitor burner can replace oil or gas-fired ignitors and warm-up guns and thereby reduce the amount of oil or gas used in ignition, warm-up, and low-load stabilization.
摘要:
A fuel-fired furnace for melting metal in a more efficient manner, the furnace having a burner with its combustion air being preheated by passage through an air chamber between spaced inner and outer walls of the furnace jacket and by passage through a heat exchanger through which waste combustion products pass. The jacket is double insulated and the burner is cooled by a special arrangement.
摘要:
A heating system which includes a combination of a sliding vane compressor, a positive pressure combustor and a sliding vane expander is disclosed. The components of the present system have been found to operate together to permit full use of the B.T.U. value of fuel. In an alternative embodiment, the heating system uses heat extracted from the ambient air as the heat source. The system may also be operated as an air conditioning system, rejecting heat from the system to the ambient air.
摘要:
An installation and a method for the heat treatment of refuse of any type and similar products such as low or poor quality fuels are disclosed. The installation comprises a one piece combustion chamber formed of three coaxial parts, one of which is of truncated conical shape, and another one of which comprises an opening in its vault for collection of the combustion gas in a hood sealingly mounted onto the external wall of the chamber and covering said vault opening, means being provided for imparting to said chamber an oscillating movement around its longitudinal axis in order to propel the refuse and similar products between the entrance and the exit of the chamber.
摘要:
The method disclosed includes injecting particulate fuel and a relatively small quantity of air into one end of a chamber so as to promote turbulence in the mixture during passage along the chamber to an outlet where ignition takes place. Further air is added to the mixture in the region of the outlet in sufficient quantities to permit full combustion of the entrained fuel when discharged from the outlet. Also disclosed are three alternative forms of apparatus each including a chamber for promoting turbulence. To effect turbulation, the air and fuel inlets are positioned to provide a cyclonic movement or suitable guides may be provided within the chamber to cause such movement.
摘要:
A thermal incinerator unit with an improved design that provides a gas recycle passageway means around and in combination with the combustion section to thereby limit the temperature increase through such combustion section and provide a controlled burning of the incinerated portion of the fumes. The recycle arrangement within the incineration unit is particularly applicable to the handling of a high B.t.u. content contaminated gas stream which could normally result in an excessive temperature rise across the combustion zone.