51results about "Baffles" patented technology

A non-return valve for a flow channel has a housing and an outflow opening that can be closed by a pivoting blocking flap. The blocking flap has a dome-shaped bulge. An opening edge of the outflow opening has a hinge region for the blocking flap that transitions into a blocking flap stop region circumferentially opposite the hinge region. The blocking flap stop region is offset so that the opening edge has a progression that is curved in the circumferential direction and in the outflow direction. The housing has an indentation in the circumferential direction, which is not closed by the blocking flap such that the indentation forms a condensate chamber when the housing is inserted into the surrounding flow channel. The indentation is equipped with a flow opening, through which a condensate accumulating in the condensate chamber delimited by the indentation can flow in the interior of the housing.

The present disclosure relates to a device for heating a medium, including a burner unit and a flame tube, wherein the burner unit generates flue gas, wherein the flame tube has a flue gas inlet, a longitudinal axis, a casing extending along the longitudinal axis, and an end face opposite the flue gas inlet, wherein the flue gas passes from the burner unit into the flame tube via the flue gas inlet, wherein a plurality of recesses are located in the casing, and wherein the recesses have different dimensions and / or are distributed asymmetrically on the casing. The longitudinal axis is in a central plane, wherein a first side and a second side of the casing are formed by the central plane, and wherein recesses on the first side have smaller dimensions than recesses on the second side.

There is provided a flow-directing apparatus for a furnace for curing tobacco, the flow-directing apparatus comprising: one or more flow guides arranged to form a primary fluid flow path to guide a primary fluid flow from a primary combustion chamber of the furnace to a mixing region of the furnace; and one or more bypass channels arranged to form a secondary fluid flow path for receiving a secondary fluid flow from an inlet, wherein the secondary fluid flow path bypasses at least part of the primary fluid flow path, wherein an outlet of the one or more bypass channels is arranged to feed into the mixing region to cause the primary fluid flow and the secondary fluid flow to mix.

The invention discloses a flue gas flow equalizing device for a turning flue of a compact boiler, and relates to the technical field of flue gas flow equalizing devices. The device comprises a flow guide plate arranged at an inlet of a turning flue and used for preliminary flow guide; the different-diameter flow equalizing pore plate is arranged at the downstream of the flow guide plate, and the flue gas flow speed is balanced through the differentiated design that small holes are formed in the high flow speed position and large holes are formed in the low flow speed position; and the rectifying grid is arranged at the downstream of the reducing flow equalizing pore plate so as to further optimize the uniformity of the flow field. Through a three-stage flow equalizing system formed by the guide plates, the different-diameter flow equalizing pore plates and the rectifying grids, the problem that the flue gas flow velocity at the turning flue of the compact boiler is not uniform is solved, and while the denitration efficiency is improved, the device has the advantages of being simple in structure, low in manufacturing cost, small in occupied space and the like.

A cooking appliance comprising a heating chamber 1, a lower chamber 2 located below the bottom wall portion 11 of the heating chamber 1, and a gas burner 3 positioned inserted into a burner mounting hole 15 formed in the bottom wall portion 11 so as to extend from the heating chamber 1 to the lower chamber 2, which heats the food to be cooked with the food placed on the bottom wall portion 11, is designed to suppress the cooling of the bottom wall portion 11 by secondary air flowing into the burner mounting hole 15, thereby shortening the preheating time. [Solution] A burner enclosure member 7 is installed in the burner installation hole 15, surrounding the gas burner 3 with a gap for secondary air to flow around it, such that there is a gap between the peripheral wall surface of the burner installation hole 15 and the burner enclosure member 7. A member 72 is provided between the peripheral wall surface of the burner installation hole 15 and the burner enclosure member 7 to prevent communication between the heating chamber 1 and the lower chamber 2 through the gap.

The invention discloses a straight type waste heat recovery boiler, and relates to the technical field of boilers, the straight type waste heat recovery boiler comprises a mounting base, a vertical boiler is mounted at the top end of the mounting base, a power conversion and spraying filtering mechanism is arranged at the top end of the vertical boiler, and the power conversion and spraying filtering mechanism comprises a smoke exhaust straight cylinder; the boiler is scientific and reasonable in structure and safe and convenient to use, a power conversion and spraying filtering mechanism is arranged, the flowing speed of rising waste gas is increased through a Bernoulli air flue, the smoke exhaust effect is improved, and the smoke exhaust effect is improved. By utilizing the cooperation of a wind power rotary vane, a rotary vane connecting shaft, a central rotating shaft and a hollow vertical cylinder, the high-temperature waste gas which rapidly rises can be conveniently utilized, power is generated, the hollow vertical cylinder is pushed to rotate, and then residual impurities on the filter screen are cleaned through the cooperation of a chain wheel, a transmission chain, a driven rotating rod and a rotating scraping plate.

The present invention provides a radiant tube having a heat transfer promoter with a simple structure and the ability to further improve heat transfer efficiency. The heat transfer promoter (4) has a main body (41) disposed on the center side of the pipe (1) and a plurality of protrusions (42) protruding from the main body (41) toward the inner wall surface (1a) of the pipe (1). Multiple protrusions (42) are formed on the outer periphery of the main body (41) in a manner arranged along the circumferential direction of the pipe (1). The multiple protrusions (42) are composed of multiple first protrusions (42a) and other second protrusions (42b). The front end of the first protrusion (42a) is opposed to the inner wall surface (1a) of the pipe (1) with a gap (ΔL). The number of first protrusions (42a) is set to be greater than the number of second protrusions (42b). When the ratio of the equivalent diameter (ΔL / Dt) of the gap relative to the portion of the pipe (1) in which the heat transfer promoter (4) is arranged is set to 100% as x [%), the following formula is satisfied: 0.3% <x<7%。

A system for reducing internal combustion engine emissions includes an engine, a catalytic converter fluidly connected to a combustion chamber via an exhaust line, a glow plug positioned along the exhaust line between the catalytic converter and the combustion chamber, and a flame accelerator, without a fluid connection to a separate fuel supply. Methods of using the system include igniting a mixture of air and fuel in the exhaust line using the glow plug, producing an amount of heated combustion gas.

A fireplace enclosure is an apparatus that enables the restoration of an existing wood-burning fireplace by providing a clean surface that enables the installation of gas logs in the existing wood-burning fireplace. The apparatus preferably includes a first lateral panel, a second lateral panel, a bottom panel, and an arc-shaped panel. The first lateral panel and the second lateral panel correspond to the sections of the apparatus that cover the lateral walls of the existing fireplace. The bottom panel corresponds to the section of the apparatus that covers the bottom wall of the existing fireplace. The arc-shaped panel corresponds to the section of the apparatus that covers the back wall of the existing fireplace. In addition, the arc-shaped panel increases the structural strength of the apparatus by providing rigidity to the overall structure.

The invention provides a compact self-mixing type flow guide air bellow device. The compact self-mixing type flow guide air bellow device comprises an upper flow guide air bellow and a lower flow guide air bellow which are fixed to the inner wall of a hot air pipeline and arranged at intervals. The upper flow guide air bellow and the lower flow guide air bellow are respectively positioned on an inner ring and an outer ring of the bending section and are concentrically arranged with the bending section; hot air channels are formed between the upper flow guide air bellow and the lower flow guide air bellow and between the upper flow guide air bellow and the inner side wall of the hot air pipeline and between the lower flow guide air bellow and the inner side wall of the hot air pipeline, so that the direction of hot air entering the hot air pipeline is changed and hot air is primarily shunted; an upper flow guide air box air inlet and a lower flow guide air box air inlet are formed in the positions, corresponding to the two side walls of the upper flow guide air box and the lower flow guide air box, of the hot air pipeline correspondingly and used for being communicated with the cold air pipeline so that cold air entering the hot air pipeline can flow to the horizontal section after being mixed with hot air. The integrated flow guide air bellow device with the functions of flow guide, resistance reduction and cold and hot air mixing is designed creatively from the source, space is saved, and air duct resistance is reduced.

Method and a deep frying device for deep frying a food product in a deep frying device, wherein the deep frying device comprises a container for fat. For reducing the chances of damaging the deep frying device by the deep frying and increasing the availability, use is made of a deep frying device comprising a pipe section for hot flue gas which protrudes into the lumen of the container but is not connected to an opposite wall. The pipe section comprises - a plurality of supply pipes for the relatively hot flue gas, and - at least one outlet pipe for the relatively cold flue gas coming from the plurality of supply pipes.

A combustion system and method, particularly for use in power generation boilers, are provided. The combustion system 1 includes a burner (3, 3', 3") for supplying a mixture (8) of fuel and primary air or gas to a combustion chamber (6) via at least one fuel nozzle (4); a conduit (11, 47) in fluid communication with at least one fuel nozzle (4) for guiding the mixture (8) of fuel and primary air or gas to the at least one fuel nozzle (4); and a deflector device (21) positioned within the conduit (11, 47) upstream of the at least one fuel nozzle (4) to deflect the incoming mixture of fuel and primary air or gas. The flow (8) is deflected. The deflector device (21) includes an injection device (22) arranged to inject auxiliary gas (23) into the duct (11, 47) to deflect the incoming fuel and primary air or gas mixture (8) in a direction from the center of the duct (11, 47) to the outer region, thereby increasing the concentration of the fuel and primary air or gas mixture (8) in the outer region (17) of the fuel nozzle (4) and decreasing the concentration of the fuel and primary air or gas mixture (8) in the central section (16) of the fuel nozzle (4).

The invention provides an efficient combustor and a low-load stable combustion boiler, and relates to the field of thermal power generation, the efficient combustor comprises a mounting cylinder, a connecting disc is fixedly arranged at the rear end of the interior of the mounting cylinder, a flow equalizing assembly is arranged in the mounting cylinder, a rotational flow assembly is arranged at the front end of the flow equalizing assembly, and a flow stabilizing assembly is arranged at the front end of the rotational flow assembly; a connecting assembly is arranged at the rear end of the connecting disc, a conveying assembly is arranged in the connecting assembly, an air supply assembly is arranged behind the connecting assembly, and a combustion-supporting assembly is arranged above the connecting assembly. By means of the flow equalizing assembly, resistance is reduced at high air pressure through the flow equalizing assembly, and energy consumption of the draught fan is reduced; the flow speed is increased at low wind pressure, so that airflow distribution and flow speed are uniform, flame drift caused by non-uniform flow speed at low load is avoided, airflow is ensured to enter a combustion area at the most ideal flow speed, and the combustion stability is improved.

The invention relates to a non-return valve (1) for a flow channel (14) through which a flow of air flows, comprising a housing (2) through which air flows in an outflow direction. The non-return valve has an outflow opening (8) which can be closed by a blocking flap (3) pivotally mounted on the housing (2). The blocking flap (3) has a dome-shaped bulge (19) with an inner region (20) which is curved forwards in the outflow direction. An opening edge (16) of the outflow opening (8) of the housing (2) has a hinge region (17) in which the blocking flap (3) is pivotally mounted on the housing (2) and which transitions into a blocking flap stop region (18) arranged opposite the hinge region in the circumferential direction, said blocking flap stop region being offset in the outflow direction so that the opening edge (16) has a progression which is not only curved in the circumferential direction but also in the outflow direction. The housing (2) has an indentation (26) in the circumferential direction, said indentation not being closed by the blocking flap (3) such that the indentation (26) forms a condensate chamber (27) when the housing (2) is inserted into the surrounding flow channel (14). The indentation (26) is equipped with a flow opening (28), through which a condensate accumulating in the condensate chamber (27) delimited by the indentation (26) can flow in the interior of the housing (2), thereby bypassing the blocking flap (3), in the vicinity of the opening edge (16) of the outflow opening (8).

A radiant tube includes a conduit; and one or more heat transfer promoters disposed in the conduit, wherein the heat transfer promoter includes a body part on a center side of the conduit, and protruding parts protruding from the body part toward an inner wall surface of the conduit, the protruding parts are on an outer periphery of the body part to be arranged in a circumferential direction of the conduit, the protruding parts includes first protruding parts having a distal end portion facing the inner wall surface across a gap ΔL, and a second protruding part, the number of first protruding parts is greater than the number of second protruding parts, and a ratio (ΔL / Dt) of the gap ΔL to an equivalent diameter Dt of a conduit portion is x %, where the heat transfer promoter is disposed, and formula (1) is satisfied: 0.3%<x<7%.

The utility model relates to a heat insulation structure of a water heater, a burner is arranged in the water heater, the burner comprises an outer shell, an inner shell and a plurality of fire grate sheets, the inner shell is fixed in the outer shell, a heat insulation area is formed between the outer side wall of the inner shell and the inner side wall of the outer shell, a first air inlet structure is arranged at the bottom of the outer shell, and a second air inlet structure is arranged at the bottom of the outer shell. A second air inlet structure is arranged on the side wall of the inner shell, the bottom of the inner shell is open, the opening corresponds to the first air inlet structure, and the second air inlet structure is communicated with the interior of the inner shell and the heat insulation area. The heat insulation area is arranged on the combustor, and air in the heat insulation area is used as a medium for blocking heat radiation, so that outward transfer of heat of the combustor can be effectively reduced; and through the first air inlet structure and the second air inlet structure, external air can be fed into the inner shell, and heat of the heat insulation area can be taken away in the air conveying process.

The present invention provides a gas appliance, comprising a frame and a partition; the partition is disposed within the frame and includes a flow guide portion and a heat insulating portion. The flow guide portion and the frame define a first flow guide channel, and the flow guide portion is provided with a first air outlet, which communicates with the first flow guide channel and faces the heat insulating portion. The gas appliance provided by the present invention has a partition disposed on its inner side. The partition reduces heat transferred from the interior of the gas appliance to the gas appliance, thereby lowering the temperature of the gas appliance and reducing the impact of high temperatures generated by the burner on sheet metal components, such as the gas appliance, thereby extending the service life of sheet metal components, such as the gas appliance.

A furnace for implementing an endothermic process comprising: - a combustion chamber (1) delimited by a wall (2), - at least one tubular reactor (3) positioned in the combustion chamber (1), - at least one burner (4b) arranged in the combustion chamber (1) to supply the tubular reactor (3) with the heat necessary for the endothermic process, - the burner (4b) comprising at least one flame discharge nozzle, the nozzle being oriented along an axis (A'; A'') of the nozzle, characterized in that the chamber (1) has, on at least a portion of an internal surface of the wall (2), an internal profile (7) that is convex and curved in a direction of the axis (A'; A'') of the nozzle, the profile being adjacent to said burner (4b). Abbreviated figure: Fig. 5

A boiler according to the present invention includes: a burner for burning hydrogen fuel and combustion air to generate combustion gas; and a rectangular can body in which a plurality of water pipes are arranged at predetermined intervals in a gas flow space. The water pipes are arranged so that a longitudinal direction thereof is a vertical direction in the gas flow space, and are configured so that water is supplied from a lower end part thereof and steam is discharged from an upper end part thereof. The burner is disposed at a position biased downward in the vertical direction of the gas flow space, and ejects the combustion air or a premixed gas of the combustion air and the hydrogen fuel so as to form a main flow direction of the combustion gas in a direction perpendicular to the longitudinal direction of the water pipes facing the burner. An expansion region for expanding the flow of the combustion gas in the upward direction of the gas flow space is provided between the water pipes on the downstream side of the water pipe in the first row adjacent to the burner.

The invention discloses a fluid combustion furnace capable of achieving sufficient combustion, and relates to the technical field of fluid combustion furnaces, the fluid combustion furnace comprises a combustion furnace shell, one side of the combustion furnace shell is fixedly communicated with a heat preservation cylinder, one end of the heat preservation cylinder is fixedly communicated with a heat exchange box, and one side of the heat exchange box is fixedly communicated with a guide pipe; a processing mechanism is arranged at one end of the guide pipe and comprises a water vapor processing unit and a carbon dioxide processing unit, and according to the fluid combustion furnace capable of achieving sufficient combustion, by arranging the air guide mechanism, fluid fuel is sprayed out through the flame projector and ignited through the flame projector, so that the fluid fuel is combusted in the combustion furnace shell; when fluid fuel passes through the first partition plate and the second partition plate, the time of the fluid fuel in the combustion furnace shell can be prolonged, the combustion degree of the fluid fuel can be increased, the graphite columns can be heated through combustion of the fluid fuel, and when air passes through the space between the graphite columns, the effect of further heating the air is achieved.

A burner assembly (34) includes a conduit (100) having a plurality of ports (208) formed along a length of the conduit (100). The conduit (100) is configured to direct a flow of gas out of the conduit (100) via the plurality of ports (208). The burner assembly (34) further includes a shroud (112) extending along a length of the conduit (100) and covering at least a portion of the conduit (100). The shroud (112) is perimetrically offset from the conduit (100) to form an air passage (306) between the shroud (112) and the conduit (100) along an outer perimeter (204) of the conduit (100). The conduit (100) and the shroud (112) are configured to facilitate airflow along the air passage (306) in response to the flow of gas out of the conduit (100).

An apparatus includes a bottom, a top including an opening, a first sidewall coupled to the top and the bottom, a second sidewall coupled to the top and the bottom, an interior defined at least in part by the bottom, the top, the first sidewall, and the second sidewall, and a central vertical axis. A first vane couples to the first sidewall, within the interior, and follows a spiral trajectory about the central vertical axis in a direction between the bottom and the top. A second vane couples to the second sidewall, within the interior, and follows a spiral trajectory about the central vertical axis in the direction between the bottom and the top.

The invention discloses a gas flow channel switching structure, a combustor with the gas flow channel switching structure and a combustion furnace with the gas flow channel switching structure, the gas flow channel switching structure comprises a first baffle located in a first channel and a second baffle located in a second channel, the first baffle and the second baffle are both movable, and the first baffle is constructed to seal the first channel; the first baffle and the second baffle are in motion connection, the first baffle moves to drive the second baffle to move, and correspondingly, the second baffle moves to drive the first baffle to move. By means of the gas flow channel switching structure, automatic switching of the gas flow channels can be achieved in the process that fuel in the device is continuously reduced, and reverse smoke generated when the fuel is burnt out is prevented from entering a room.

The invention relates to the technical field of biomass boilers, in particular to a device and method for improving steam parameters of a biomass boiler. Comprising a hearth outlet flue, the upper portion of the hearth outlet flue is fixedly connected and communicated with a cooler, the cooler is fixedly connected and communicated with a tail flue, an economizer and an air pre-heater are arranged in the tail flue, the tail flue is fixedly connected and communicated with a four-way valve, the tail flue is fixedly connected with a flue gas distribution system, and the flue gas distribution system is fixedly connected with a boiler. The side, close to the hearth outlet flue, of the cooler is fixedly connected with a first cold smoke pipeline, and the first cold smoke pipeline is fixedly connected with and communicates with first spraying heads which are evenly distributed. The cold flue gas in the tail flue is pumped back into the cooler, and the cold flue gas is promoted to be mixed with the high-temperature flue gas, so that the high-temperature flue gas in the cooler is cooled to below 750 DEG C, the probability that KCl is condensed on an economizer is reduced, and the hidden danger that the surface of a heat exchanger of the tail flue is blocked when the temperature of the biomass boiler is increased is reduced.

The present disclosure relates to a combustion device capable of generating a spirally interlaced flame effect and improving combustion firepower. The combustion device includes an outer wall and an inner wall. A ventilation chamber is formed between the inner wall and the outer wall. An upper end of the inner wall is provided with a plurality of air inlet structures distributed at intervals circumferentially. A combustion chamber restricted by the inner wall is connected to the ventilation chamber through the air inlet structure. An air inlet is formed in a lower end of the inner wall. The air inlet structure includes a first air inlet hole and a guider. The guider is provided with a wind guide surface facing towards the first air inlet hole. The wind guide surface is formed by extending a connecting edge to the interior of the combustion chamber and an outlet edge in the direction of the first air inlet hole. A second air inlet hole is restricted by the outlet edge. The direction of the second air inlet hole is upwards inclined, so that gas flowing through the first air inlet hole is inclined upwards to be guided towards the interior of the inner wall.

The invention relates to a device (1) for heating a medium, comprising a burner unit (2) and a flame tube (3). The burner unit (2) generates flue gas, and the flame tube (3) has a flue gas inlet (30), a longitudinal axis (31), a casing (32) extending along the longitudinal axis (31), and an end face (33) lying opposite the flue gas inlet (30), wherein the flue gas reaches the flame tube (3) from the burner unit (2) via the flue gas inlet (30), multiple recesses (34, 34') are located in the casing (32), and the recesses (34, 34') have different dimensions and / or are distributed asymmetrically on the casing (32). The longitudinal axis (31) lies on a central plane, a first side (32') and a second side (32") of the casing (32) being defined by the central plane, and recesses (34) on the first side (32') have smaller dimensions than recesses (34') on the second side (32").

A windproof structure for the flue outlet includes a flue passage and an air deflector. The flue passage extends in a preset direction and has, in an extension direction, a first port and a second port that are in communication. The first port is configured to be in communication with the outside, and the second port is configured to be in communication with a flue pipe of the gas water heater. The air deflector is disposed outside the flue passage and located on one side of the first port facing away from the second port. The air deflector is spaced apart from the first port by a preset distance, and an orthogonal projection of the air deflector onto the first port covers the first port.

A gas burner system (12) has a gas burner with a conduit (16) through which an air-gas mixture is conducted; a variable-speed forced-air device (40) that forces air through the conduit (16); a control valve (44) that controls a supply of gas for mixture with the air to thereby form the air-gas mixture; and an electrode (30) configured to ignite the air-gas mixture so as to produce a flame (29). The electrode is further configured to measure a flame ionization current associated with the flame (29). A controller (50) is configured to actively control the variable-speed forced-air device based on the flame ionization current measured by the electrode (30) so as to automatically avoid a flame harmonic mode of the gas burner (10). Corresponding methods are provided.

The present disclosure discloses a combustion chamber and a combustion apparatus. The combustion chamber includes: a first surrounding plate located on an outer side and a second surrounding plate located on an inner side. A combustion cavity is defined by the second surrounding plate. The first surrounding plate and the second surrounding plate are spaced apart from each other to define at least one air duct in communication with the combustion cavity. Each of the at least one air duct has an air inlet hole formed in the first surrounding plate, and an air outlet hole formed in the second surrounding plate.

The present disclosure discloses a combustion chamber (100) and a combustion apparatus (1000). The combustion chamber (100) includes: a first enclosing plate (10) located on an outer side and a second enclosing plate (20) located on an inner side. A combustion cavity (21) is defined by the second enclosing plate (20). The first enclosing plate (10) and the second enclosing plate (20) are spaced apart from each other to define at least one air duct (30) in communication with the combustion cavity (21). Each of the at least one air duct (30) has an air inlet hole (11) formed in the first enclosing plate (10), and an air outlet hole (22) formed in the second enclosing plate (20).