1083 results about "Combustion chamber" patented technology

The present application relates to the technical field of engine, and discloses a combustion system, a gas engine and a combustion system design method, a second fuel injection hole sprays an oil jet to ignite a part of natural gas jets on the same side of the second fuel injection hole, and under the action of a vortex in a combustion chamber, with the second fuel injection hole continuously spraying the oil jet, a flame formed by the oil jet igniting the natural gas jets gradually becomes longer along the vortex direction, so that the oil jet sprayed by the second fuel injection hole ignites the natural gas jets on the side of the natural gas injector opposite to the fuel injector; the oil jet sprayed by the first fuel injection hole ignites the remaining natural gas jets, so that the oil jets sprayed by the fuel injector on both sides of a reference line can achieve the maximum ignition effect, all the natural gas jets are ignited by using the least oil jet, the ignition effect of igniting the natural gas by using the fuel is improved, the thermal efficiency is higher, and the emission is lower.

A method (100) for adjusting the timing of fuel injection into a combustion chamber (24) of a compression ignition engine (12), the method (100) comprising: Detect (102), via an electronic control (60), a request to generate zero torque by the motor; Switching off (104), via the electronic control (60), of the fuel supply to the combustion chamber (24) during the detected requirement to generate a torque of zero; Issue (106), via the electronic control (60), a command to inject a test quantity of fuel into the combustion chamber (24) while the detected requirement to generate zero torque exists; Assess (108), via the electronic control (60), a time delay (74) between the command given to inject the test fuel quantity and the start of the injection of the test fuel quantity; Determine (110), via the electronic control (60), a compensation for the assessed time delay (74); Detect (116), via the electronic control (60), a request to generate a positive torque by the motor and commands (118), via the electronic control (60), a shift in the timing of fuel injection into the combustion chamber (24) by the determined compensation during positive torque generation by the engine.

The invention relates to a containerized method for the thermal treatment of contaminated solids, pasteous materials, and waste. The system comprises at least one thermally insulated container designed to minimize heat loss and enable material loading from a liftable top panel or a side panel, as well as at least one heat production unit featuring a burner control system and a combustion chamber capable of achieving oxidizing conditions for the complete destruction of contaminants. The method provides simultaneous thermal treatment of materials and vapor-phase contaminant destruction, supported by a ventilation system and a monitoring system for real-time adjustments. In a second aspect, the invention provides a containerized device with comparable operational features, designed for portability and modular deployment, facilitating on-site remediation in remote locations.

A water-cooled fully premixed burner includes an open-top gas distribution chamber, a water-cooling pipe, a burner element, a gas guide pipe, and an air-gas premixing device. The gas distribution chamber has perforations on its wall panel. The burner element is corrugated, with the crests forming the combustion chamber. The top and side walls of the combustion chamber have top combustion holes and side combustion holes, respectively. The burner element is embedded within the gas distribution chamber, with the troughs opposite the perforations. The water-cooling pipe passes through the perforations and engages with the troughs for heat exchange. The gas guide pipe connects to the air-gas premixing device and the gas distribution chamber. The burner element's corrugated design, with the water-cooling pipe located within the troughs, results in a low temperature rise in the combustion chamber formed by the corrugations, leading to complete combustion and low nitrogen content. Furthermore, the heat load decreases minimally during prolonged combustion, resulting in energy savings.

The present application relates to a kind of energetic metal powder combustion reactor and combustion method, reactor includes combustion chamber, high-temperature reflux chamber, first burner, chamber, second burner and cyclone concentrator, the top of combustion chamber is provided with combustion chamber outlet;High-temperature reflux chamber is arranged in the lower portion of combustion chamber, and is communicated with combustion chamber;The outer wall upper portion of high-temperature reflux chamber is equipped with burner arrangement surface;First burner is arranged on burner arrangement surface, and is communicated with high-temperature reflux chamber;Chamber is arranged in the lower portion of high-temperature reflux chamber, and is communicated with high-temperature reflux chamber;Second burner is arranged in the lower portion of chamber, and is communicated with chamber;Cyclone concentrator is connected with first burner, second burner respectively by pipeline;High concentration energetic metal powder and low concentration energetic metal powder enter the combustion in reactor from different channels, reactor rapidly heats up the energetic metal powder in it and burns, and the burnout is good, while the generation amount of NOx is reduced.

There is provided a method (300) for controlling an injector (1) for an engine, the injector comprising an actuator (6) and a valve (2) which is engageable with a valve seat (5) of the injector, the valve comprising an elastomer seal (4) disposed at an end of the valve proximal to the valve seat, the actuator being configured to receive a drive signal (11.2) to move the valve towards and away from the valve seat to control injection of gaseous fuel into an associated engine combustion chamber, the method comprising: determining (302) a soak time, wherein the soak time is a time interval between a most recent power-off time of the engine and a subsequent power-on time of the engine; determining (304) a peak current (A1) and / or a duration (T2-T1) for an initial portion of the drive signal for the actuator as a function of the determined soak time; and applying (306) the initial portion of the drive signal to the actuator, using the peak current and / or for the duration, to move the valve from a closed state to an open state.

The application discloses a catalytic combustion heater principle prototype, which comprises an air tank, a methane tank, a mixed gas tank and a combustion chamber, the air tank is connected with the mixed gas tank through a connecting pipeline, the gas outlet of the mixed gas tank is connected with the methane tank and the combustion chamber through two connecting pipelines respectively, the top of the combustion chamber is provided with a mixed gas inlet, and a blower is arranged outside the combustion chamber, the application simulates the operation state of the underground catalytic combustion heater, high-temperature tail gas released by catalytic combustion mixed gas is used for heating oil shale layers, so that the oil shale is pyrolyzed to obtain the purpose of exploiting oil and gas, the simulation reference result of the experimental prototype can be understood as the actual operation result, the application not only reduces the exploitation cost of the oil shale in-situ conversion exploitation, but also improves the oil and gas exploitation efficiency, reduces the exploitation cost and reduces the harm of the toxic tail gas generated by incomplete combustion to animals, plants and the environment caused by direct release of the toxic tail gas into the atmosphere.

A combustor assembly (3) for a gas turbine unit (1) comprises at least one combustor unit (7) provided with a liner (16) extending substantially along a combustor axis (B); the combustor unit (7) comprising a first-stage combustor (8) and a second-stage combustor (9), which is arranged downstream the first-stage combustor (8) along the gas flow direction (G); the first-stage combustor (8) comprising a first-stage burner (11), fed with first-stage fuel and first-stage air, and a first-stage combustion chamber (12), where the first-stage fuel is burned; wherein the second-stage combustor (9) comprises a second-stage burner (13) and a second-stage combustion chamber (14); the second-stage burner (13) being arranged downstream of the first-stage combustion chamber (12); the second-stage combustion chamber (14) being fed with hot gas leaving the first-stage combustion chamber (12) and passing through the second-stage burner (13), with dilution air and with a second-stage fuel; wherein the dilution air and the second-stage fuel are injected simultaneously within the second-stage burner (13).

The utility model discloses a wind volume self -adaptation heat accumulation type organic waste gas treatment integrated machine relates to heat accumulation type organic waste gas treatment technical field, including no. The utility model discloses a solenoid valve, wind speed and volume sensor, temperature sensor and control module are set up, so that wind speed and volume sensor can carry out real -time monitoring to the wind speed and volume of inside flow of no.

The dual-fuel engine piston capable of reducing methane emission comprises a piston body, a concave pit is formed in the top face of the piston body to serve as a combustion chamber, the top face of the piston body is connected with the side face of the piston body through a flow guide face, and the combustion chamber is communicated with the flow guide face through a plurality of vortex grooves. A set included angle is formed between the vortex groove and the tangent line of the outer circumference of the combustion chamber; according to the utility model, the flow guide surface is arranged between the piston top surface and the piston side surface, so that natural gas in the backlash can be guided into the combustion chamber for combustion, and methane emission is further reduced. A vortex groove is formed in the top face of the piston, natural gas in a side gap passes through a flow guide face to a motion chamber in a combustion chamber and inevitably passes through the vortex groove, airflow is guided by the vortex groove to form a certain vortex in a cylinder, later-stage combustion is accelerated, combustion is more sufficient, and methane emission is further reduced.

The invention relates to a device (8) for distributing at least one fuel flow of a fuel supply circuit, in particular of a turbine combustion chamber of an aircraft, the device (8) comprising a rotating body (80) extending around a longitudinal axis (A), said body (80) comprising: an internal flow duct (800) for a first fuel flow, the internal flow duct extending along the axis (A) through the body (80); a first annular portion (81) configured to form an outlet passage for a second fuel flow, and comprising at least one aperture (810) for passing the second fuel flow; and an external annular groove (820) in fluid communication with the at least one aperture (810) in the first portion (81).

The application belongs to the field of burner design, and particularly relates to a micro-size direct-injection premixed burner, which comprises a fuel inlet pipe, a fuel pressure stabilizing cavity, a micro-mixing pipe, a connecting arm and an end plate. The fuel inlet pipe, the fuel pressure stabilizing cavity and the micro-mixing pipe are sequentially arranged from front to back, and the fuel inlet pipe, the fuel pressure stabilizing cavity and the micro-mixing pipe are in communication with each other. Fuel is introduced into the fuel inlet pipe and flows into the fuel pressure stabilizing cavity. The micro-mixing pipe comprises a fuel pipe and an air pipe. One end of the fuel pipe is connected with the fuel pressure stabilizing cavity, and the other end of the fuel pipe is connected with one end of the air pipe. The other end of the air pipe is connected with a combustion chamber flame tube. The air pipe can receive air. The fuel in the fuel pressure stabilizing cavity is supplied into the air pipe in a direct-injection mode to mix with the air, and a premixed gas is supplied into the combustion chamber flame tube. The micro-size premixed combustion mode, the coaxial direct-injection fuel-air mixing scheme and the array micro-mixing pipe scheme can realize lower NOx emission when the synthetic gas is burned and improve the stability of the emission performance.

A combustor (100) for a gas turbine comprising a combustion chamber (102) having an inlet (104). The combustion chamber inlet (104) is defined by a burner (30). The burner comprises a pilot burner section (200) centred on the centre axis (Y); a swirler section (300) comprising vanes (302) which extend radially outwards from the pilot burner section (200); and a main burner section (400) which extends radially outwards from, and surrounds, the swirler section (300).

The utility model relates to the technical field of carbonization furnace, and disclose self -heating sectional type biomass carbonization furnace, including heat -exchangeable heating part and carbonization part, the carbonization part detachably set in heating part top, and heating part top recess forms the recess, the carbonization part outside forms the protruding part matched with recess, and the carbonization part inside forms the inner chamber containing raw material to be carbonized, the heating part inside forms the combustion chamber containing fuel, and heating part one side opens and forms the feeding hole communicated with combustion chamber, the utility model discloses through setting detachable heating part and carbonization part, utilize the protruding part on carbonization part and recess on heating part and engage, make carbonization part install to the top of heating part, when needing to maintain device, if carbonization part goods heating part one of parts is damaged, only need to maintain corresponding heating part goods or carbonization part, do not need integral dismounting replacement, reduce the difficulty of maintenance and use cost in later period, improve maintenance efficiency.

This invention discloses a dual-component thrust attitude control engine, comprising a mounting plate, a swirling mixer, an igniter, and a combustion chamber nozzle. The mounting plate contains two isolated gas chambers, each with an intake pipe connected to its inlet and an on / off controllable solenoid valve at its outlet. The two inlets of the swirling mixture are connected to the outlets of the two gas chambers, and the outlet of the swirling mixer is connected to the inlet of the combustion chamber nozzle. The swirling mixer is used to swirl and mix the gas input into it before outputting it. The igniter is used to ignite the mixed gas input into the combustion chamber nozzle. The combustion chamber nozzle is used to supply the combusted mixed gas for combustion output. This configuration solves the problem that existing technologies cannot simultaneously achieve compact structure, high mixing efficiency, and excellent thermal management performance.

Provided are a dual fuel injector, an engine, and a control method for a dual fuel injector, relating to the technical field of engines. The dual fuel injector includes a fuel oil supply passage, a gaseous fuel supply passage, and a fuel injection portion. The fuel oil supply passage is used for delivering fuel oil, the gaseous fuel supply passage is used for delivering gaseous fuel, the fuel injection portion is used for being in communication with a combustion chamber, and the fuel injection portion is selectively in communication with the fuel oil supply passage, and the fuel injection portion is selectively in communication with the gaseous fuel supply passage.

This invention relates to a rapid prediction system and method for combustion characteristics of pure hydrogen micro-mixed combustors based on CNN. The invention addresses the problem of long design cycles for micro-mixed pure hydrogen combustors. By constructing a dataset representing the relationship between "inlet conditions and combustion characteristics," this invention enables rapid prediction of the combustion characteristics of pure hydrogen micro-mixed combustors based solely on the inlet conditions, significantly accelerating the variable operating condition design cycle. The prediction system includes a data acquisition module, a data preprocessing module, a dataset partitioning module, a prediction model construction module, a combustion characteristic prediction module, and a model update and optimization module. This invention belongs to the field of micro-mixed combustion technology.

The present invention is applied to the technical field of gas turbines. Disclosed are a multi-fuel mixing nozzle for a gas turbine, and a combustion chamber and a combustion method. Output ends of a fuel gas premixing passage, a fuel gas diffusion passage and a radial rapid-mixing air passage are configured to sequentially communicate with a swirl premixed gas output passage in a fuel nozzle body. When a low-reactivity fuel gas is combusted, a premixed fuel gas containing the low-reactivity fuel gas is mixed with radial rapid-mixing air in the swirl premixed gas output passage and is outputted, or is sequentially mixed with a high / low-reactivity fuel gas ejected from the fuel gas diffusion passage and the radial rapid-mixing air and is outputted, thereby achieving stable combustion. When only the high-reactivity fuel gas is combusted, the high-reactivity fuel gas is outputted into the swirl premixed gas output passage through the fuel gas diffusion passage, and undergoes multiple cross-jets with upstream swirl air and the downstream radial rapid-mixing air, thereby achieving rapid mixing and low-nitrogen combustion.

A cylindrical body includes a plurality of annular members. The annular member each have an outer circumferential wall section, an inner circumferential wall section which is disposed further inward than the outer circumferential wall section and defines a cooling flow path between the inner circumferential wall section and the outer circumferential wall section, and a plurality of cooling fins which are disposed in the cooling path and connect the other circumferential wall section and the inner circumferential wall section; the outer circumferential wall section has a plurality of inlet holes which cause compressed air to be introduced from an intra-case flow path to the cooling path; the inner circumferential wall section has a plurality of outlet holes which cause compressed air to be discharged from the cooling path to a combustion chamber; and the plurality of annular members are connected to each other along an axis X.

Provided is a radiant heating device. The radiant heating device according to the present disclosure comprises: a combustion chamber body having a combustion chamber therein; a burner configured to preheat the combustion chamber by supplying fuel and an oxidizer and, after preheating, to supply only fuel into the combustion chamber; an oxidizer injection nozzle for supplying the oxidizer to the combustion chamber; and a gas discharge pipe for discharging exhaust gas circulated in the combustion chamber.

A fuel supply system (1) for an internal combustion engine (10) designed as a reciprocating piston engine with a crankshaft and several combustion chambers (11, 12, 13, 14, 15, 16), in particular one powered by hydrogen, comprises a fuel rail (20, 24, 25) to which several fuel injectors (8) are connected via supply lines (22, 23, 28). At least one resonator valve (27, 30, 31) is arranged between the fuel rail (20, 24, 25) and the fuel injectors (8), the latter being designed for actuation depending on the crankshaft angle (α).

A non-propulsive turbomachine (2) for an aircraft (M) fuel conditioning system (Q) comprising: a first compressor (21), a combustion chamber (23) supplied by a first airflow (A1) flowing in a general supply channel (30) connected to the first compressor (21), a second compressor (22) connected to the general supply channel (30) by a first sampling channel (31), so as to be supplied with a second airflow (A2) from the first compressor (21), and to a cabin air conditioning device (6), a single gas turbine (24) connected to both the first compressor (21) and the second compressor (22) by a single turbomachine shaft (25), a second sampling channel (33) connecting the general supply channel (30) and the cabin air conditioning device (6), and at least one sampling valve (4),mounted on the first sampling channel (31) and configured to allow or prevent the circulation of the second airflow (A2) in the sampling channel (31). Abstract figure: Figure 3,

Disclosed is a steam generating device capable of avoiding dry burning damage of heat exchange pipes, comprising: a burner; a first heat exchange assembly provided with a combustion chamber for combustion of the burner, defining a first flue gas flow channel and a main heat exchange flow channel; water in the main heat exchange flow channel is partially vaporized by heat exchange with flue gas in the first flue gas flow channel, and a steam-water mixed fluid with a temperature above 90 DEG C is output; a second heat exchange assembly defining a second flue gas flow channel and a steam generating flow channel; the second flue gas flow channel is communicated with the downstream of the first flue gas flow channel in the flue gas flow direction, and the steam generating flow channel is communicated with the downstream of the main heat exchange flow channel in the water flow direction; the steam-water mixed fluid in the steam generating flow channel is heat exchanged with flue gas in the second flue gas flow channel to form steam; and the second heat exchange assembly has a steam output end for outputting steam.

The present invention relates to a method for controlling combustion speed through equivalence ratio stratification of an internal combustion engine using hydrogen fuel. By controlling the combustion speed, thermal efficiency can be improved by reducing heat transfer losses, heat transfer losses can be reduced and effective power can be generated by improving the initial combustion speed including the flame development period, and nitrogen oxide emissions can be reduced by lowering the overall average temperature of the combustion chamber.

A batch-type annealing furnace is disclosed. A batch-type annealing furnace according to an embodiment may include: an annealing chamber accommodating a material coil; a combustion chamber provided with a burner jetting a flame and partitioned in a state capable of ventilation with the annealing chamber; a blowing fan providing a blowing force such that a fluid in the combustion chamber is blown to the annealing chamber; a duct guiding a flow of the fluid blown from the combustion chamber to the annealing chamber; and a nozzle connected to the duct to inject the fluid guided to the annealing chamber through the duct onto the coil.

The utility model discloses an oil vaporization combustion structure of liquid fuel combustion body's, including base, vaporization combustion cylinder and cyclone air inlet cylinder, the export of oil inlet is equipped with atomization combustion net in, be equipped with vaporization combustion sticky net in vaporization combustion chamber, vaporization combustion sticky net is close to the inside wall of vaporization combustion cylinder, be equipped with the through -hole of being convenient for liquid fuel ejection on vaporization combustion sticky net. Compared with prior art, the atomization combustion net in the oil inlet meets the primary ignition condition of liquid fuel, after ignition success, liquid fuel is directly sprayed into vaporization combustion chamber, and under the cyclone effect, can be dispersed more widely, and the area of vaporization combustion sticky net is larger, and it is easier to disperse and form oil film, and the liquid fuel that is not completely vaporized will be thrown on vaporization combustion sticky net, and form oil film and burn, be favorable to the vaporization combustion of liquid fuel, and the double -deck vaporization combustion sticky net structure design can realize liquid fuel better dispersion and vaporization combustion, and adapt to high temperature environment.

A dual-premixed ammonia burner relates to the field of ammonia combustion equipment. Addressing the problems of high ignition energy, slow combustion speed, poor flame stability, and difficulty in achieving stable combustion in large proportions with ammonia, this invention employs a dual premixing structure of auxiliary fuel gas premixed with ammonia and air premixed with ammonia, combined with a three-stage coaxial air duct and a regenerative pre-combustion chamber to achieve stable combustion. The burner includes an ignition gun, a primary air regulating damper, a secondary air regulating damper, a volute-shaped air casing, a primary air annular duct, swirl vanes, an annular ammonia multi-nozzle header, a pre-combustion chamber, a tertiary air multi-nozzle annular pipe, a flame monitor, and dual ammonia and auxiliary fuel inlets. This invention allows for wide load adjustment from 30% to 100%, no flameout at low loads, high burnout rate, and low nitrogen oxide emissions. It can operate with a large proportion of ammonia or pure gas, features a reasonable structure, reliable ignition, and stable safety, and is suitable for zero-carbon retrofitting and efficient utilization of green ammonia in industrial boilers, kilns, and other thermal equipment.

An aspect of the present disclosure provides a flow channel cap plate that constitutes a combustion chamber assembly including a combustion chamber and a plurality of insulating pipelines disposed on left / right side surfaces of the combustion chamber, the flow channel cap plate forming an insulating flow channel by covering the front surface of the combustion chamber, the flow channel cap plate including an inlet part including an inlet, and an inlet flow channel cap covering the front surface of the combustion chamber, an inlet space part is formed by covering the front surface of the combustion chamber with the inlet flow channel cap, the inlet is an entrance of the insulating flow channel, the plurality of insulating pipelines include a plurality of inlet insulating pipelines, and the inlet space part is a space that communicates the inlet with the plurality of inlet insulating pipelines.