19results about "Burner control devices" patented technology

A burner includes an atomizing chamber, a flame tube in front of the atomizing chamber adapted to direct combusting fuel introduced by the atomizing chamber along an interior of the flame tube, and a controller. The controller is programmed to independently control rate of fuel flow to the atomizing chamber, rate of atomizing air flow to the atomizing chamber, and rate of combustion air to the flame tub. The controller is also programmed to perform operations including regulating, based on output of a gas sensor, at least the rate of combustion air to the flame tube to substantially maintain a first predetermined amount of excess air in the flame tube.

To suppress back fire as much as possible while suppressing pressure loss even in a case when a fuel gas is a hydrogen gas, in an all primary combustion burner which includes a burner body 1 having an air-fuel mixture chamber 11 to which the air-fuel mixture of the fuel gas and primary air is supplied, and a combustion plate portion 2 covering an opening face 12 of the burner body facing the air-fuel mixture chamber, and in which a back fire suppression plate portion 3 opposed to the combustion plate portion at an interval is disposed, and the air-fuel mixture passing through the back fire suppression plate portion is injected from the combustion plate portion to be burned.SOLUTION: A back fire suppression plate portion has a sintered compact sheet 33 obtained by sintering a laminate on which metallic fiber or metallic beads are laminated.SELECTED DRAWING: Figure 4

Various embodiments include a combustion apparatus. An example apparatus includes: a burner; a side duct; and a feed duct. The side duct comprises an inlet, an outlet, and a mass flow sensor between the inlet and the outlet of the side duct. The mass flow sensor is configured to detect a signal corresponding to an amount of flow of a fluid through the side duct. The side duct comprises a first portion and a second portion. The first portion of the side duct comprises the mass flow sensor. The first portion of the side duct is arranged within the feed duct.

A method for the failsafe and lean ignition of a fuel gas-air mixture on a gas burner (6), which is mixed in a mixing device (4) arranged upstream of the gas burner (6). A control valve (2) along the fuel gas flow path has an actuator (21) and a throttle element (23), moved by the actuator (21), for the closed-loop control of a flow rate of the fuel gas flowing into the mixing device (4). A test is performed to determine whether the throttle element (23) is in the throttle reference position when the actuator (21) is in the actuator reference position. The throttle element (23) is moved in a flow rate-increasing manner starting at a start time (tD). The flow rate-increasing movement of the throttle element (23) is stopped as soon as at least one of multiple predetermined termination conditions occurs.

A one-piece combination valve, including: a valve body, provided with an air guide chamber and an air inlet chamber, the air guide chamber being configured with a first air outlet and a second air outlet; an electromagnetic valve assembly, fixedly connected to the valve body; and a plug valve assembly, connected to the valve body. A plug valve core of the plug valve assembly is driven under force to translate toward an electromagnetic valve core of the electromagnetic valve assembly and to be abutted against the electromagnetic valve core, so that the air guide chamber is in communication with the air inlet chamber, or a plug valve core of the plug valve assembly is driven under force to be rotated about a central axis of its own, so that at least one of the first air outlet and the second air outlet is / are in communication with the air guide chamber.

A burner includes a fuel supply part that supplies fuel to a combustion chamber, an air supply part that includes a blower that blows air to the combustion chamber according to rotation of the blower and an air supply duct connected to the blower so that air is delivered to the blower from the outside, an ignition part that generates a spark so that the supplied fuel and air are ignited, a pressure acquisition part connected to the air supply duct so that a pressure of the air supplied to the air supply part is acquired, and a processor electrically connected to the air supply part and the pressure acquisition part and controlling the blower so that a speed of the rotation of the blower is increased when a pressure value acquired by the pressure acquisition part is less than a predetermined reference pressure value.

To provide a combustion device capable of eliminating an erroneous backfire detection, improving accuracy of backfire detection, and suitably suppressing its components from being thermally damaged by a backfire flame.SOLUTION: A combustion device C comprising a combustion unit 4 for combusting fuel gas, a mixed gas supply path 3 for supplying the combustion unit 4 with mixed gas of fuel gas and air, and a flame sensor 5 positioned in the mixed gas supply path 3 or disposed on a position facing the same, and capable of optically detecting a backfire flame when a backfire occurs from the combustion unit 4 in the direction of the mixed gas supply path 3, is characterized by further comprising a shield 6 that prevents a backfire flame and flame light of normal combustion respectively, from proceeding to the flame sensor 5 from the combustion unit 4.SELECTED DRAWING: Figure 1

A method for detecting flame holding in at least one combustor of a turbine engine includes measuring dynamic pressure data of at least one combustor of the turbine engine, converting the dynamic pressure data into a frequency domain spectral energy amplitude of the dynamic pressure data, and comparing the spectral energy amplitude to a dynamic amplitude threshold to determine whether the amplitude exceeds a threshold minimum amplitude value, wherein exceeding the dynamic amplitude threshold indicates the occurrence of flame holding.

The invention relates to a gas cooking and / or gas grilling system (1) comprising: a main valve (3); a plurality of burner units (4) each having a valve (5); a pilot burner (6) having a flame detector (7) and an ignition electrode (8); and a control device (9); wherein the main valve (3) is connected or can be connected on the input side to a gas inlet (10) for connection to a gas source and is connected on the output side to each of the valves (5) of the burner units (4) and to the pilot burner (6), wherein the pilot burner (6) has a pipe (13) which is arranged on the burner units (4) and has a plurality of gas outlets (22), wherein the flame detector (7) is arranged at one end (14, 15) of the pipe (13) and wherein the ignition electrode (8) is arranged at another end (14, 15) of the pipe (13), wherein the control device (9) is designed to logically release the valves (5) of the burner units (4) for actuation when the flame detector (7) has detected a flame. The invention also relates to a pilot burner (6) and to a method for starting a gas cooking or gas grilling system (1).

A burner includes a mixing chamber having therein a space in which fuel and air are mixed to form a mixture, a chamber lower cover that is coupled to the mixing chamber while covering an opening formed in the mixing chamber in a reference direction and has a combustion opening opened in the reference direction, a porous distribution unit that includes a metallic sintered material, through which the mixture passes in the reference direction, and covers the combustion opening, a distribution plate that has a plurality of distribution through-holes, through which the mixture passing through the porous distribution unit passes, and covers the combustion opening on the downstream side of the porous distribution unit in the reference direction, and an ignition unit that covers the combustion opening on the downstream side of the distribution plate to ignite the mixture passing through the distribution plate.

The present invention provides a fireplace flame-extinguishing method operating in a fireplace, including the following steps: S1: when a shutdown command is received, stopping a heating element from heating a liquid fuel in a vaporization chamber of a vaporization device; and S2: injecting a liquid fuel having a temperature lower than a boiling point of the liquid fuel into the vaporization chamber of the vaporization device, to decrease a temperature of the liquid fuel in the vaporization chamber below the boiling point of the liquid fuel. According to the fireplace flame-extinguishing method of the present invention, the liquid fuel having the temperature lower than the boiling point of the liquid fuel is injected into the vaporization chamber during a flame-extinguishing stage to quickly decrease the temperature of the liquid fuel in the vaporization chamber below the boiling point of the liquid fuel, reducing an amount of a vaporized fuel outputted to the burner, thereby realizing quick flame extinguishment. The present invention further provides a fireplace.

The present invention provides a fireplace flame-extinguishing method, including the following steps: S1: when a shutdown command is received, stopping a heating element from heating a liquid fuel in a vaporization chamber of a vaporization device; and S2: injecting a liquid fuel having a temperature lower than a boiling point of the liquid fuel into the vaporization chamber of the vaporization device, to decrease a temperature of the liquid fuel in the vaporization chamber below the boiling point of the liquid fuel. According to the present invention, the liquid fuel having the temperature lower than the boiling point of the liquid fuel is injected into the vaporization chamber during a flame-extinguishing stage to quickly decrease the temperature of the liquid fuel in the vaporization chamber, reducing an amount of a vaporized fuel outputted to the burner, thereby realizing quick flame extinguishment. The present invention further provides a fireplace.

A burner includes a mixing chamber having therein a space in which fuel and air are mixed to form a mixture, a chamber lower cover that is coupled to the mixing chamber while covering an opening formed in the mixing chamber in a reference direction and has a combustion opening opened in the reference direction, a porous distribution unit that includes a metallic sintered material, through which the mixture passes in the reference direction, and covers the combustion opening, a distribution plate that has a plurality of distribution through-holes, through which the mixture passing through the porous distribution unit passes, and covers the combustion opening on the downstream side of the porous distribution unit in the reference direction, and an ignition unit that covers the combustion opening on the downstream side of the distribution plate to ignite the mixture passing through the distribution plate.

To suppress NOx generation amount in an ammonia combustion burner.SOLUTION: An ammonia combustion burner related to at least one embodiment of this disclosure is an ammonia combustion burner for burning ammonia fuel by a boiler, and includes: a combustion air nozzle for ejecting combustion air; a first ammonia injection nozzle disposed in the combustion air nozzle to inject ammonia fuel in the combustion air nozzle; and a flame holder disposed downstream of the first ammonia injection nozzle. The combustion air nozzle is configured to eject partially premixed fuel of part of the combustion air and the ammonia fuel injected from the first ammonia injection nozzle and remaining part of the combustion air.SELECTED DRAWING: Figure 2

A total primary combustion burner which includes a burner body 1 with an air-fuel mixture chamber 11 into which an air-fuel mixture of a fuel gas and primary air is supplied, a combustion plate portion 2 covering an opening surface 12, which faces the air-fuel mixture chamber, of the burner body, and a backfire suppressing plate portion 3 disposed opposite the combustion plate portion with a gap inside the air-fuel mixture chamber. The air-fuel mixture passing through the backfire suppressing plate portion ejects from the combustion plate portion and undergoes combustion. The total primary combustion burner is configured so that backfire can be suppressed as much as possible while suppressing pressure loss, even when using hydrogen as the fuel gas. The backfire suppressing plate portion has a sintered sheet 33, 5 made by sintering an aggregate of metallic fibers or beads.

A heating and cooking apparatus HC that heats and cooks food to be heated and cooked by combusting a fuel gas, which includes: burners each of which has a tubular and elongated burner body, and multiple burner ports opened at intervals in each burner body in a longitudinal direction; infrared radiation members each of which is disposed opposite a corresponding burner body, each infrared radiation member being elongated in the longitudinal direction of each burner body and radiating infrared by being heated; and thermocouples each of which detects a flame generated when the fuel gas is supplied to each burner, ejects from each burner port, and is combusted. Even when the heating and cooking apparatus is configured such that hydrogen as the fuel gas, ejecting from each burner port, is diffused and combusted, a yield strength of each thermocouple cannot be reduced, and hydrogen flame can be detected reliably.

Provided is a combustion device, including: a burner including an ammonia injection nozzle having an injection port that faces an inner space of a furnace; and an adjustment structure configured to adjust an opening area of the injection port.

An appliance includes a chassis, a griddle body coupled to the chassis, a burner assembly coupled to the chassis, and a sensor coupled to the chassis. The burner assembly is positioned below the griddle body and is spaced away from the griddle body. The burner assembly includes a burner tube coupled to the chassis and a burner body coupled to the burner tube. The burner body has a burner body first end and a burner body second end. The burner body defines an burner aperture positioned between the burner body first end and the burner body second end. The sensor extends axially through the burner aperture such that a distal end of the sensor is positioned proximate the griddle body.

A burner and methods of using the burner. The burner produces a flame from combustion air and fuel gas. Flue gas, also produced, can be withdrawn and recycled to the burner. A cooling or condition gas, such as ambient air, may be mixed with the flue gas to reduce its temperature. The burner may also utilize a stage injection so that a portion of the produced flue gas is recycled internally.