66 results about "Fuel gas" patented technology

A system, including, a turbine combustor, including, a first wall disposed about a flow path of hot combustion gases, a second wall disposed about the first wall, and a damping system disposed between the first and second walls, wherein the damping system is configured to dampen vibration, and the damping system is tuned to dynamic drivers in the turbine combustor.

The invention discloses a directional pyrolysis method of combustible wastes. The method comprises the following steps: putting the combustible wastes into a pyrolysis furnace; carrying out air replacement on the pyrolysis furnace, namely feeding nitrogen into the pyrolysis furnace and discharging air from the pyrolysis furnace; maintaining the nitrogen pressure in the pyrolysis furnace within 0.05MPa to 0.1MPa; starting the heating to enter pyrolysis states, namely entering different pyrolysis steps according to different pyrolysis demands for the combustible wastes, wherein the different pyrolysis demands comprise the following steps: obtaining pyrolytic carbon of the combustible wastes, obtaining a pyrolytic tar of the combustible wastes and obtaining a pyrolytic combustible gas of the combustible wastes. According to the method, the combustible wastes are directionally pyrolyzed into the organic carbon, the high-calorific-value gas and the tar by regulating the pyrolysis temperature, the pyrolysis pressure, the heating rate and the catalyst adding mode through the utilization of calorific values of the combustible wastes, so that the utilization rate of the combustible solid wastes is greatly improved; the air is isolated, so that the combustion of the carbon and the volatilization of heavy metals and chlorine are reduced. Thus, the discharge of dioxin is below 0.1ng/Nm<3>.

An air-oil cooler (AOC) for a gas turbine engine is disclosed. The AOC may comprise an oil inlet, an oil outlet, and heat exchange elements between the oil inlet and the oil outlet. The AOC may be longitudinally positioned between a fan and a V-groove of the engine and radially spaced between a low pressure compressor and a low pressure compressor panel. A gas turbine engine comprising an AOC is disclosed. The AOC of the engine may comprise an oil inlet, an oil outlet, and heat exchange elements between the oil inlet and the oil outlet. The AOC of the engine may be longitudinally positioned between a fan and a V-groove of the engine and radially spaced between a low pressure compressor and a low pressure compressor panel. A method of operating an AOC for use on a gas turbine engine is also disclosed.

The invention discloses a method for separating low-carbon olefin gas. The method is used for overcoming the disadvantages in existing low-carbon olefin separation methods that cryogenic separation is complicated in process flow, large in investment and the like. The method comprises the following steps: the low-carbon olefin gas enters a deethanization tower after the low-carbon olefin gas is compressed and dried, a tower bottom material flow of the deethanization tower is conveyed to a depropanization and propylene distillation system so as to separate polymer-grade propylene products, and a tower top material flow of the deethanization tower enters a demethanization tower; and a tower bottom material flow of the demethanization tower is conveyed to an acetylene converter and an ethylene distillation tower, a tower top material flow of the demethanization tower is conveyed to an absorption tower and is in contact with an absorbent, a tower top gaseous-phase material flow of the absorption tower is output or enters a fuel gas system, and a tower bottom material flow of the absorption tower is conveyed to the deethanization tower. The method disclosed by the invention has the advantage that the cryogenic separation is simple in process flow and small in investment and can be used for producing target products, such as polymer-grade ethylene, polymer-grade propylene and the like.

The invention relates to a reforming apparatus made of LTCC and a manufacturing method therefor. The reforming apparatus includes an upper cover made of ceramic material, having a fuel inlet at one side thereof, and an evaporator made of ceramic layers formed integrally with the upper cover, having a flow path to gasify fuel introduced through the upper cover. In the reforming apparatus, a reformer made of ceramic layers is formed at one side of the evaporator, having a catalyst in a flow path thereof to reform fuel gas entering from the evaporator into hydrogen. A CO remover made of ceramic layers is formed integrally with the reformer, having a catalyst to remove CO from reformed gas entering from the reformer. A lower cover is formed integrally at one side of the CO remover, having a reformed gas outlet to emit the reformed gas to the outside.

A method for assembling a gas turbine engine is provided. The method comprises coupling a first turbine nozzle within the engine, coupling a second turbine nozzle circumferentially adjacent the first turbine nozzle such that a gap is defined between the first and second turbine nozzles and providing at least one spline seal including a substantially planar body. The method also comprises forming at least one catch to extend outward from the body portion of the at least one spline seal, and inserting the at least one spline seal into a slot defined in at least one of the first and second turbine nozzles to facilitate reducing leakage through said gap, such that a portion of the at least one spline seal is received within a recess defined within the turbine nozzle slot to facilitate retaining the at least one spline seal within the turbine nozzle slot.

A gas turbine engine system includes a gas turbine engine using vaporized liquefied gas as fuel. The gas turbine engine is configured to ingest intake air from an intake port and direct exhaust gases to an exhaust port. The gas turbine engine system also includes a heat exchanger with a heat transfer fluid therein. The heat exchanger is configured to create at least a part of the fuel by heating the liquefied gas. The gas turbine engine system also includes an intake air temperature control circuit. The intake air temperature control circuit includes conduits configured to direct the heat transfer fluid to the intake port and the exhaust port. The gas turbine engine system also includes a control system configured to selectively direct the heat transfer fluid to one of the intake port and the exhaust port.

The present invention provides a biomass gasification furnace frees of crash, humidity resistant, having no tar, anti-burn-out. It is a flammable gas updaught household gasification furnace converted by the luminous burning pyrolytic reaction utilizing eagro-sylvo-pastoral waste biomass. The invention can easily compress pudgy biomass and pack in column bale fuel via setting opening feed inlet, arranging biomass binder, convenient to put in the furnace, needless being crashed; vapor continuously steamed is chiling and bead slides in the water tank along the inclined edge and exhaust accompanied by return tube via setting tapered condensed water collecting furnace lid, this resolving the problem of unburning when the water content of the biomass is higher; the residual tar of the high temperature fuel gas is further cracked via setting fuel gas guide port in the burning high temperature region and importing in the setted high temperature fuel gas detention timelag loop; The effects of unbiassed burning, non carbon, timely blanking and no empty burning are achieved by setting ring rotary inlet device and axial rotary driving dust blanking in the burning region.

A gas turbine engine including a component having a first and a second component that are attached or integrally formed with each other. The first and the second component define an enclosed void. An insert is positioned within the enclosed void which is formed of a material having a relatively low Young's modulus. The insert may prevent resin from filling the enclosed void during assembly/manufacture of the component, while also reducing a weight of the component and an amount of stress on the component. The component may be a fan platform positioned between a plurality of fan blades, an outlet guide vane, or another component of the gas turbine engine.

The invention discloses a reverse flow combustor and a double-wall elbow structure thereof and relates to the field of aero-engines. The double-wall elbow structure comprises an inner elbow wall and an outer elbow wall; in the flowing direction of fuel gas, the inner elbow wall is divided into an upper inner elbow wall section and a lower inner elbow wall section, cooling structures of the two regions are different, the upper inner elbow wall section is provided with multiple rows of diverging holes, besides the fact that certain included angles are formed between the diverging holes and the wall of the upper inner elbow wall section, certain deflection included angles are formed between the diverging holes and the flowing direction of the fuel gas, and compound angles are formed; the lower inner elbow wall section is provided with a plurality of rows of diverging holes, certain included angles are formed between the diverging holes and the wall of the lower inner elbow wall section, and deflection included angles are not formed; and the inner elbow wall is sleeved with the outer elbow wall, a middle cavity is formed between the inner elbow wall and the outer elbow wall, and impactholes are formed in a shell of the outer elbow wall. By means of the elbow structure, the peak wall temperature at the start section of the inner elbow wall and the wall temperature gradient of an elbow can be effectively reduced, and therefore the strength of the elbow is improved, and the service life of the elbow is prolonged.

Method, apparatus and breathable compositions for protecting a person from reactive oxygen species in the body are described. The invention involves providing a person with a breathing gas composition comprising at least one fuel gas compound. Apparatus and methods for providing such breathing gas compositions are described.

A fuel cooled cooling air heat exchanger includes a fuel injector and an airflow body. The fuel injector has a fuel flow passage formed therein that includes a fuel inlet port and a fuel outlet port. The airflow body is coupled to and surrounds at least a portion of the fuel injector. The airflow body has an inner surface that is spaced apart from the fuel injector to define an airflow passage between the airflow body and the fuel injector, and the airflow passage includes an air inlet port and an air outlet port.

The invention relates to a flow guiding disc of a group injection flow complemented-burning type gas burner, in particular to a flow guiding disc for guiding flowing direction of main complemented-burning gas in the gas burner and belongs to the technical field of the gas burner. A main burning soft-fire path is arranged at the center of a disc body, and a plurality of complemented-burning soft-fire paths are arranged on an outer ring of the main burning soft-fire path. A plurality of round main burning moderate-fire paths are arranged on outer rings of the complemented-burning soft-fire paths. A plurality of complemented-burning moderate-fire paths are arranged on outer rings of the main burning moderate-fire paths, and a plurality of main burning big-fire paths are arranged on outer rings of the complemented-burning moderate-fire paths. Complemented-burning big-fire paths are arranged on outer rings of the main burning big-fire paths. The flow guiding disc of the group injection flow complemented-burning type gas burner is simple, compact and reasonable in structure, complete and stable in burning and high in flame temperature, reduces emission, saves energy sources and improves burning heat efficiency.

Provided is a fuel cell system that performs a warm-up operation by reducing a supply of oxidant gas to a fuel cell, the system having: a fuel cell; and a control unit that regulates amounts of oxidant gas and fuel gas supplied to the fuel cell and controls a power-generation state of the fuel cell. During the warm-up operation with a reduced supply of oxidant gas to the fuel cell, the control unit varies a voltage of the fuel cell for a short period of time to obtain current-voltage characteristics which indicate a relationship of an output voltage and an output current of the fuel cell, calculates an effective catalyst area of the fuel cell based on the obtained current-voltage characteristics, and determines whether the warm-up operation of the fuel cell can be stopped or not based on the calculated effective catalyst area.

The invention relates to an upper-air-intake dual-ring combustor which comprises a base, nozzles, a foundation seat and burner caps. The base is embedded on a panel and is internally provided with a fuel gas channel; the nozzles comprise a first nozzle and a second nozzle communicating with the fuel gas channel; the foundation seat is supported on the base and comprises an inner-ring seat body andan outer-ring seat body arranged on the periphery of the inner-ring seat body at an interval; the inner-ring seat body is provided with an inner injection pipe; the outer-ring seat body is provided with an outer injection pipe; the burner caps comprise an inner-ring burner cap and an outer-ring burner cap; the inner-ring burner cap covers the inner-ring seat body in a matching way; an inner-ringgas mixing chamber is formed between the inner-ring burner cap and the inner-ring seat body; the outer-ring burner cap covers the outer-ring seat body in a matching way; an outer-ring gas mixing chamber is formed between the outer-ring burner cap and the outer-ring seat body; a temperature sensing probe stretching out to the upper part of the inner-ring burner cap is arranged in the inner-ring seat body; and a check ring is arranged on the top face of the inner-ring burner cap in an upward extending way along the circumferential direction, and is located on the inner circumference of a fire hole of the inner-ring burner cap. According to the upper-air-intake dual-ring combustor, the influences of flame, smoke and the like on the temperature rise of the temperature sensing probe can be reduced, so that the temperature measurement accuracy and the service life of the temperature sensing probe are improved and prolonged.

A gas turbine engine has a fan drive turbine for driving a gear reduction. The gear reduction drives a fan rotor. A lubrication system supplies oil to the gear reduction, and includes a lubricant pump to supply an air/oil mixture to an inlet of a deaerator. The deaerator includes a separator for separating oil and air, delivering separated air to an air outlet, and delivering separated oil back into an oil tank. The separated oil is first delivered into a pipe outwardly of the oil tank, and then into a location beneath a minimum oil level in the tank. Air within the oil tank moves outwardly through an air exit into the deaerator. A method of designing a gas turbine engine is also disclosed.

The invention discloses a method for preparing hydrogen by utilizing waste biomass, and the method comprises the following steps of: firstly, processing the waste biomass into semi-finished product fluid slurry; then, carrying out water vapor gasification treatment on the semi-finished product fluid slurry, thus obtaining crude oil; carrying out supercritical water gasification treatment on the crude oil, thus obtaining crude bio-gas; and finally, carrying out low-temperature transformation treatment on the crude bio-gas, thus obtaining transformed gas. The hydrogen is prepared by two-step gasification and low-temperature transformation, so that the biomass gasification efficiency is high, tar carbon deposit blockage can be avoided, continuous feeding is realized, and the prepared hydrogen is high in purity; furthermore, in the low-temperature transformation treatment, precious metals and rare-earth elements are added on the basis of a copper-zinc-aluminum catalyst, so that the reaction temperature is remarkably reduced, the activity and stability of the catalyst are improved, and the conversion rate of CO is high during the low-temperature transformation treatment.

An electrolyte membrane 16 is arranged inside first and second frames 13 and 14. The electrolyte membrane 16 has a first surface, on which an anode side electrocatalytic layer 17 is superimposed, and a second surface, on which a cathode side electrocatalytic layer 18 is superimposed. The electrocatalytic layer 17 has a surface on which an anode side gas flow path formation body 21 including a gas flow path 21c for supplying fuel gas is superimposed. Further, the electrocatalytic layer 18 has a surface on which a cathode side gas flow path formation body 22 including a gas flow path 22c for supplying oxidation gas is superimposed. The first and second gas flow path formation bodies 21 and 22 have surfaces on which first and second separators 23 and 24 are superimposed, respectively.

A combustion apparatus includes a combustion chamber, a pre-chamber and a first device for mixing a fuel with an oxidant, the first device being located upstream of the pre-chamber. The combustion chamber and the pre-chamber share a common first and second wall spaced to each other building a cavity. The first wall exhibits at least one first opening in the area of the combustion chamber for introducing a coolant into the cavity. Further, the combustion apparatus has a channel for feeding the oxidant to the first device, whereby the channel is formed by a housing element of the combustion apparatus and the common first wall of the combustion chamber and the pre-chamber. The at least one first opening is located in the area of the combustion chamber. The first wall exhibits at least one second opening, located in the area of the pre-chamber, for introducing the coolant into the cavity.

The invention relates to the technical field of gas devices, in particular to a gas burner and a gas stove. The gas burner comprises a flange connecting plate, an end seal plate, a rectangular bottom plate and an arc gas screen. The arc gas screen is fixed to the two sides of the rectangular bottom plate. A mixed gas cavity with the semi-arc section is formed between the rectangular bottom plate and the arc gas screen. The flange connecting plate and the end seal plate are arranged at the front end and the rear end of the mixed gas cavity correspondingly, and the flange connecting plate is provided with an air inlet. The gas burner further comprises a fairing arranged in the mixed gas cavity, through holes or through grooves are evenly distributed in the fairing, a gas homogenizing cavity is formed in the fairing, and the air inlet communicates with the gas homogenizing cavity. The invention further discloses the gas stove. The gas stove comprises the above gas burner and a furnace cavity. Compared with ordinary gas burners, the gas burner can better save energy, and normal usage and service life of the stove can be guaranteed.

A home appliance with a cooktop and an oven cavity. A gas-operable burner for heating the cavity to a cooking temperature and including a gas mixing pipe is mounted to the appliance with a bracket and has an inlet for intake of gas and air for combustion, the gas mixing pipe being mounted to the appliance with a bracket. A ventilation channel extends through the appliance body. A fan is in fluid communication with the ventilation channel for creating an airstream within the ventilation channel. An air conduit extends between the ventilation channel and the gas mixing pipe, with an air conduit inlet in the airstream and an air conduit outlet adjacent the gas mixing pipe to direct air from the airstream to the gas mixing pipe for combustion with the gas and air. An air conduit stabilization apparatus mounts the air conduit to the gas mixing pipe bracket.

The invention discloses a jet engine, which comprises a shell with exhaust holes, a rotor which is arranged in the shell and can be rotated, and at least one jet device, wherein the rotor is fixedly arranged on an output shaft supported by a bearing; the jet device is arranged on the periphery of the rotor and generates propulsion by combusting fuel gas to cause the rotor to rotate; and the jet device comprises a combustion chamber with a jet exhaust, an ignition device, an oxygen therapy trachea and a hydrogen therapy trachea. Compared with the prior piston type engine, the jet engine has the characteristics of simple structure, small volume, light weight, few components, easy processing and manufacture, low fault rate, low manufacturing and using cost, fast starting, high rotating speed, high efficiency of heat engine, high power, stable running, small noise, no air pollution, small abrasion of accessories, long service life and so on, and is suitable for various vehicles or power generating machines.

The invention discloses a combined method for treating kitchen waste and waste plastics to prepare hydrogen-rich fuel gas. The method comprises the following steps: crushing the collected kitchen waste and waste plastics, and conveying the crushed material to a supercritical water gasification reaction kettle, wherein the reaction kettle is filled with nitrogen gas; heating and pressurizing the reaction kettle by using an electric heater to 420 DEG C and 23-25 MPa, respectively; performing a reaction continuously for 40-60 min, and stirring the material at the rotation speed of 100-150 rpm byusing a magnetic stirrer; after the reaction is completed, cooling the reaction kettle to room temperature by using cooling water; and collecting the high-quality hydrogen-rich fuel gas by using an air pump, drying the gas, and performing storage. The method can realize the efficient treatment of the kitchen waste and the waste plastics; the synthesis gas produced by the kitchen waste and the waste plastics combined with supercritical water gasification has a high hydrogen concentration and high quality; and the secondary pollution to the environment in the treatment process is greatly reduced.