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 of 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 the gas and air and special forms of equipment for establishing and controlling the combustion processes.
摘要:
A firecheck to be connected to a combustible gas line and including a casing having a gas inlet, a gas outlet and an access opening. A cover plate removably encloses the access opening and a burner screen is located within the casing between the inlet and the outlet and is disposed in communication with the access opening. A control valve is disposed within the casing for controlling the flow of gas through the casing and is movable between an open position and a closed position. The valve is moved to the open position through a manually operated mechanism and is locked in the open position. On release of the locking mechanism the valve is biased to the closed position. Removal of the cover plate from the casing acts to release the locking mechanism to thereby enable the biasing means to move the valve to the closed position.
摘要:
A manifold gas valve having a plug valve with main, pilot and ignitor gas passageways therein; a knob for rotating the plug valve, a pilot burner flame responsive safety valve upstream of the plug valve and a normally closed ignitor valve in the ignitor gas passageway. There is means on said knob arranged to actuate said ignitor valve and safety valve to their open positions, when the plug valve is in the position that permits gas flow to both a pilot burner and an ignitor burner for igniting the pilot burner from a remote position but permits no gas flow to the main burner, when the knob is moved axially with respect to the plug valve.
摘要:
When explosive gases are introduced into a combustion chamber care must be taken that no pre-ignition occurs. To this end, the gas is spatially subdivided into discrete volume elements, for example by means of a bundle of tubes having an internal diameter which does not exceed twice the quenching distance of the explosive gases. Such a division ensures that the wall distances of the gas portions of one volume element are greater than their quenching distances.
摘要:
A shell is formed into a housing for an industrial burner which is connected to the end of a firetube into which the products of combustion from the burner are discharged. A sub-housing has a flame arrestor element mounted on its external surface and is connected to the burner housing to form a path for all combustion air.
摘要:
A firecheck to be installed in a combustible fuel line. The firecheck includes a casing having a gas inlet and an outlet and a burner screen is located between the inlet and outlet. A main control valve is disposed at the inlet and is biased to the closed position by a spring loaded arm. The control valve can be manually opened by a hand knob which operates through a drive mechanism, including two clutch units, and the valve is locked in the open position by a ratchet mechanism. One clutch unit can be manually disengaged to permit the control valve to close under the biasing force of the spring loaded arm, while the second clutch unit is disengaged to effect closing of the control valve by deflection of a bimetallic element located downstream and adjacent the burner screen. The outlet of the casing is provided with a pair of windows, each of which is adapted to be closed by a pivotable gate. On a detonation downstream the shock wave acts to pivot the gates to the closed position to retard the propagation of the shock wave and flame, and the flame will burn on the downstream side of the screen heating the bimetallic element to thereby close the main control valve and shut off the flow of the combustible fuel mixture.
摘要:
The gas to be burned is delivered through an annular gas inlet into a flared portion at the bottom end of the mixing tube while air is brought in through the open bottom end so that an annular curtain of flame is formed on burning. A means for preventing flashback of the flame is positioned in the upper end of the mixing tube in the form of parallel or concentric tubes. One or more shield tubes are also positioned about the upper end of the mixing tube to permit cooling of the flame by ambient air.
摘要:
Dual lever mechanisms especially well suited for use in a combination control device for gas burner apparatus having a reset operator, an electromagnetic holding device and a safety valve member, the dual lever mechanisms including a first lever having one arm actuated by the reset operator, a second arm engaging the magnet armature and a third arm spaced from the second arm and movable into engagement with a second lever for the safety valve member and pivoted in common with the first lever; lost motion is provided between the first and second levers such that the second lever is not engaged by the third arm of the first lever until the final movement of the reset operator whereupon the valve member is lifted from its seat a slight amount thereby permitting the pressure differential experienced across the valve to be balanced. A torsion spring for the second lever thereafter moves the second lever so as to fully open the safety valve.