摘要:
A main burner 22, a pilot burner 25, and a lead-in pipe 29 supplying combustion exhaust to the pilot burner 25 are arranged in a combustion chamber R2. A flame arrester 27 with small holes 27 a is provided at a bottom plate 13. Furthermore, a primary thermocouple 26 detecting the flame state of the pilot burner 25 and a secondary thermocouple 28 detecting the temperature in the combustion chamber R2 are connected in series but with opposite polarities. When the flame arrester 27 clogs up with fine particles, the pilot burner 25, which sucks in combustion exhaust, performs abnormal combustion before the main burner 22, which is detected by the primary thermocouple 26 and the secondary thermocouple 28, whereupon the combustion with the main burner 22 is stopped. Thus, incomplete combustion due to blocking of the air supply path can be prevented.
摘要:
A programmable burner for gas stoves, which is constituted by a gas burner and a safety valve that includes a thermocouple, which is located in coincidence with an external edge of the burner. The safety valve is maintained open when the thermocouple is detecting the presence of a flame on the gas burner and is closed when the burner has been turned off. An electrode is placed near of the external periphery of the burner for igniting. A spark generation module is connected with the electrode for generating the sparks for igniting the burner. A spark interrupter is connected to the spark generation module, the spark interrupter being located over a burner knob that is connected to the safety valve, for activating or deactivating the spark generation of the spark generation module. Finally a programmable device is connected with the thermocouple and the security valve, for programming the ignition time of the burner in accordance with a preestablished operation time by user.
摘要:
A burner apparatus is operated in a plurality of distinct modes. In a startup mode, flows of oxidant and primary fuel are ignited by an igniter and are provided simultaneously with a flow of secondary fuel until a process chamber reaches the auto-ignition temperature of the secondary fuel. In a subsequent mode, flows of oxidant and secondary fuel are provided simultaneously to the exclusion of a flow of primary fuel.
摘要:
When an error occurs to a combustion device, a microcomputer inside a control apparatus for the combustion device closes a safety valve thereby stopping gas supply to a gas burner. In a conventional control apparatus, when a power source resetting is actuated with a power switch, the safety valve is opened to supply the gas burner with gas even though the cause for the error has not been resolved. As a solution, when an error occurs, the fact of such an occurrence is stored in a nonvolatile memory, i.e., electrically erasable programmable read-only memory, EEPROM. It is so arranged that, unless the reset switch is operated, the memory in the EEPROM is not reset. After resetting, the memory in the EEPROM is read out. As long as the reset has not been made, the safety valve is not opened, but the program immediately proceeds to a state in which the operation of the reset switch is held in suspension.
摘要:
A method for determining a soot charge in a combustion chamber includes measuring a spatial distribution of at least one parameter characteristic of a combustion by monitoring a flame in the combustion chamber. The at least one parameter allows a conclusion concerning a soot charge in the combustion chamber during operation and the at least one parameter is a temperature and/or a carbon monoxide content. The soot charge is determined based on the measuring step and by using a comparison with given conversion curves. A device for determining a soot charge in a combustion chamber is also provided.
摘要:
A communication and data interpreting system for detecting and converting and combining multiple analog signals from flame detectors into a single analog signal and RS 485 for transmission. This system also uses an analog clamping circuit to generate the analog signal from flame rod sensors and a load resistor and a high voltage generator for generating the signal in an UV sensing tube. The input signals are then multiplexed and sent to a microcomputer. The microcomputer uses a diode and a solid state relay circuit to generate a compatible signal output to a burner control.
摘要:
A system and method provide a container holding a candle, a covering portion that can cover an opening of the container holding the candle, a device that automatically extinguishes the candle utilizing the covering portion and an attachment portion shaped to fit around the opening of the container holding the candle. The attachment portion can be removeably secured to the container via a securing system. The attachment portion can also be coupled to the covering portion and the device that automatically extinguishes the candle.
摘要:
A fire display apparatus comprises a structural base plate supported in a horizontal attitude within a clay, or other fire resistant bowl. The base plate supports an annular burner tube on a outer, upwardly facing surface, the burner tube providing outwardly directed plural burner apertures adapted for directing flames in an outward direction. The base plate also supports a burner fence positioned in spaced-apart relationship with the burner apertures and adapted for directing the flames upwardly away from the outer face of the base plate. Burner gas is conducted to the space between the bowl interior and the underside of the base plate. Here, gas valves and a flame sensor provide automated flame monitoring and control. A system control unit is heat insulated using standoffs, an insulating mat and a heat cage.
摘要:
A smoke density monitor for mounting on a ship smokestack. The smoke density monitor provides a transmitter head and a receiver head mounted to a smokestack. The transmitter head and receiver head are optically connected with a density monitor by means of fiber-optic lines. The density monitor is electrically connected to an alarm monitor, which at pre-set smokestack smoke densities activates an alarm and/or shuts down the ship's burner(s). An optional recorder may be connected to the alarm monitor to preserve a record of smoke density. Each transmitter and recorder head has an optical head slidably attached to a head housing for ease of servicing and maintenance. Each head housing incorporates an exit chamber, a trap chamber and a head chamber. The head chamber houses an optical head lens. The trap chamber provides the capability of trapping particulates to prevent their adhesion to the optical head lens. Sealing air is pumped into the exit chamber by a sealing air supply, and exits the exit chamber through an exit chamber mouth into the smokestack bore. The continuous flow of sealing air through each head housing helps keep dust and smoke in the chimney bore from coating the optical head lens, which would produce erroneous results. A sealing air fitting valve regulates the rate of sealing air flow through the head housing.
摘要:
The present invention provides a laser-based method and apparatus that uses absorption spectroscopy to detect the mole fraction of CO2 in a high temperature gas stream. In a preferred embodiment, a distributed feedback based diode laser sensor operating at a wavelength near 1996.89 nm (5007.787 cmnull1) interrogates the R(50) transition of the null1null2null2nullnull3 CO2 absorption band in the near infrared. This transition is specifically chosen based on its superior linestrength and substantial isolation from interfering absorption by high-temperature H2O, CO, NH3, N2O, NO, and other species commonly present in combustion or other high-temperature gas flows.