51results about "Burner control devices" patented technology

A total primary combustion burner which includes a burner body with an air-fuel mixture chamber into which an air-fuel mixture of a fuel gas and primary air is supplied, a combustion plate portion covering an opening surface, which faces the air-fuel mixture chamber, of the burner body, and a backfire suppressing plate portion 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 obtained by sintering a laminate made by sintering an aggregate of metallic fibers or beads.

A gas destruction system using a gas destroying device communicatively coupled to an electronic controller subsystem for neutralizing unwanted gas emissions. The system includes a gas destruction device and method and can be customized to variable conditions by way of controlling available flow area. The disclosed gas destruction device includes multiple combustion manifolds separated by valves, which allow gas to flow to sets of nozzles as needed to maintain stable combustion. The system consists of multiple nozzles for gas flow, a main shutoff valve, a flow measurement sensor, and an igniter and power source. The combustion products are allowed to flow through the exhaust outlet attached to the combustor. A communicator device is included in the system to send system information, preferably wirelessly. The system can operate autonomously via local or remote controllers, or manually via local or remote commands.

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.

A regulation method of a premixed gas burner substantially and / or essentially fed by hydrogen H2 as well as a device to carry out such method is described.

Proposed is a heater (10) configured to combust a combustion mixture comprising a fuel gas with a hydrogen content of at least 80 percent and combustion air. The combustion mixture is conveyed by means of a conveying device (6) through a mixture channel (7) into a burner cavity (23) of a burner (1) and exits through a burner outlet element (4) into a combustion chamber (3) where it burns. A device for selectively adjusting the flow resistance (5) is arranged in the mixture channel (7) or in the burner cavity (23). The heater (10) enables noise-free operation of the heater (10) in all operating ranges.

Combustion device with mass flow sensor. Combustion device comprising a burner (1), a side channel (24), and a feed channel (11); wherein the side channel (24) includes an inlet, an outlet, and a mass flow sensor (13) located between the inlet and the outlet of the side channel (24); wherein the mass flow sensor (13) is configured to detect a signal corresponding to a flow rate (15) of a fluid through the side channel (24); wherein the mass flow sensor (13) is flush with the inner wall of the side channel (24) or projects into the side channel (24); wherein the side channel (24) comprises a first section and a second section; wherein the first section of the side channel (24) is different from the second section of the side channel (24); wherein the first section of the side channel (24) includes the mass flow sensor (13); and wherein the first section of the side channel (24) projects into the feed channel (11).and wherein the first section of the side channel (24) projects into the supply channel (11) such that the mass flow sensor (13) is arranged within the supply channel (11).

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

The invention relates to the technical field of heaters, in particular to a fast-heating gas heater which comprises a main body, a gas conveying device is arranged in the main body, a combustion cylinder is arranged at the top of the main body, and a first Venturi tube and a second Venturi tube are arranged in the combustion cylinder. The gas inlet end of the first Venturi tube and the gas inlet end of the second Venturi tube are arranged at the bottom of the combustion cylinder and communicated with the gas conveying device, the gas outlet end of the first Venturi tube extends to the upper portion of the combustion cylinder, and the gas outlet end of the second Venturi tube extends to the middle of the combustion cylinder. Gas can enter the combustion cylinder through the first Venturi tube and the second Venturi tube, so that the upper portion and the middle portion of the combustion cylinder are rapidly filled with the gas, the efficiency of covering the interior of the combustion cylinder by the gas is improved, finally, uniform radiation combustion is achieved by igniting the gas, and the warmer is rapid in heating, good in warming effect and high in practicability. And better use experience can be provided for the user.

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.

Methods and systems for a fire device, comprising a gaseous fuel injector configured to provide a gaseous fuel stream in a direction towards a fan lighter, wherein the fan lighter is configured to ignite the gaseous fuel stream at greater than a threshold distance above the gaseous fuel injector such that a ghost flame is formed. The gaseous fuel injector is positioned vertically below the gaseous fuel injector and vertically spaced away from the fan lighter.

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.

A method for detecting flameholding in at least one combustor of a turbine engine includes measuring dynamic pressure data of the at least one combustor of the turbine engine; converting the dynamic pressure data to frequency-domain spectral energy amplitudes for the dynamic pressure data; and comparing the spectral energy amplitudes against a dynamic amplitude threshold value to determine whether the amplitudes exceed the threshold minimum amplitude value, wherein exceeding the dynamic amplitude threshold indicates a flameholding occurrence.

Device (10) for delivering a gaseous mixture (M) of a first gas (A) and a second gas (G) which comprises: a body (10) which defines a first duct (11) in which the first gas (A) flows and a second duct (12) in which the second gas (G) flows, wherein the first duct (11) and the second duct (12) join together in a mixing zone (13). The device (10) comprises a first sensor (30a) configured to determine a flow rate, QA, of the first gas (A), and at least one of either a second sensor (30b) or a third sensor (30c) configured to determine a flow rate, QG, of the second gas (G).

A gas cooktop (1) includes: a cooktop body (10), where the cooktop body (10) is provided with a burner head (11), and fire generated by the burner head (11) is used for heating cookware (2) placed on the burner head (11); and a control system (20), where the control system (20) includes a fire detection apparatus (21) and a control apparatus (22), and the control apparatus (22) receives a signal of the fire detection apparatus (21) to control the fire of the burner head (11). The fire detection apparatus (21) is installed over the burner head (11) and is aligned with the burner head (11), and the control apparatus (22) determines, depending on whether the fire detection apparatus (21) detects the fire of the burner head (11), whether cookware (2) is placed on the burner head (11). By using such a gas cooktop (1) including the control system (20), the gas cooktop (1) automatically adjusts the fire to a minimum after a user removes a pot, thus reducing fume in a kitchen and reducing gas consumption.

The present disclosure relates to a burner apparatus (1) for a gas appliance (100; 110) and a method of manufacturing the burner apparatus (1). Further, it relates to a gas appliance (100; 110) comprising the burner apparatus (1). The burner apparatus (1) comprises a burner head (2) comprising a gas outlet (3) for provisioning a flame (20a) of a flammable gas when ignited. The burner apparatus (1) further comprises a gas conduit (4) arranged to be connectable to and extend between a gas supply (41) and the burner head (2), and configured for provisioning the flammable gas from the gas supply to the burner head (2). The burner apparatus further comprises a pilot burner unit (5) configured at least for providing a pilot flame (20c) for igniting the flammable gas, wherein the pilot burner unit comprises an igniter unit (5a) configured to ignite the flammable gas, and an oxygen depletion-sensing unit (5b). Further, the burner apparatus (1) comprises an elongated perforated gas passage (6) having one or more perforations (7) extending along at least a part of a length of at least one portion of the elongated perforated gas passage. The elongated gas passage is arranged to be connectable to and extend between the pilot burner unit and the burner head (2) such that the pilot burner unit is arranged at a distal end portion (6a) of the elongated perforated gas passage (6) with respect to the burner head (2).

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 combustion system such as a furnace or boiler includes a perforated reaction holder configured to hold a combustion reaction that produces very low oxides of nitrogen (NOx).

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 invention relates to a burner unit (23) for a furnace, in particular a continuous furnace, tunnel furnace or the like, a furnace (13) and a method for operating a furnace, wherein the burner unit has at least two burners (14) designed for the combustion of a fuel gas, wherein the burner unit has a gas line and an air line (15) for supplying the burners with fuel gas, wherein the burner unit has at least one gas metering valve in the gas line and at least one air metering valve (21) in the air line, wherein the gas metering valve and the air metering valve are controllable by means of a common control device, wherein the gas metering valve is a solenoid valve and the air metering valve is a solenoid valve (25, 26).

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