305results about How to "High flame temperature" patented technology

A gas turbine engine includes a combustor system including a lean premix combustor and a water delivery system. The combustor is operable with a fuel/air mixture equivalence ratio less than one and the water delivery system is configured to supply at least one of water or steam to the gas turbine engine such that either the water or the steam is injected into the combustor to control emissions generated by the combustor. As a result, nitrous oxide emissions for specified turbine operating power levels are lowered.

An intense ultraviolet radiation source is disclosed that may be operated in substantially any arbitrary gas environment, without regard to a containment envelope for the ultraviolet radiation source. The intense ultraviolet radiation source can be generated by applying a pulsed or continuous electrical discharge to a partially ionized combustion flame via two electrodes. The combustion flame and electrical discharge can be focused, contained, or confined by gas pressure, electric fields, and/or magnetic fields. Optionally, the thermal energy in the flame and the electrical discharge power input may be augmented with an electromagnetic radiation source, such as a radio-frequency induction heater, a laser, or a microwave generator. Impurities may be placed in contact with or added to the fuel and/or the oxidizer to further alter the emitted ultraviolet radiation spectral brightness as needed. The ultraviolet source may be applied to the molecular dissociation of pollutants in exhaust gas streams of combustion systems. The efficient dissociation of such pollutants requires UV in the wavelength ranges of the vacuum ultraviolet band (100 nm-180 nm) and the UV-C band (180 nm-280 nm).

The invention discloses a method for dyeing and finishing pure-cotton high-count high-density fabric, which includes steps of singeing, cold dome, desizing and boiling-off, bleaching, mercerization, dyeing, moisture absorption and breath, no-iron sorting, tentering, pre-shrinking and packaging. The fabric dyed and finished by the present invention has advantages of high rebound, moisture absorption and breath, crease-resistance and soft feel.

The invention is a high-efficiency, energy-saving and high-speed burner for a gas cooker used in catering industry and includes a burner, a pre-heater, a pre-mixing small fire burner, a fireproof fire ring, an electronic ignition system and a regulating device. After being necked down, the burning flame is ejected with high speed rotation to form the rotary rapid ejection burning flame, thereby realizing sufficient burning, facilitating boiler heating, and increasing the heating speed with low burning noise and high heat efficiency. The high-efficiency, energy-saving and high-speed burner for the gas cooker has the advantages of simple manufacture, easy maintenance, sufficient burning, high flame temperature, convenient boiler heating, improved heating speed, low power of the equipped blower fan, low burning noise, high thermal efficiency, convenient regulation, full-automatic ignition, concentrative firepower, intensive fire, energy conservation, strong adaptability, capability of meeting different requirements, wide application, easy processing, low manufacture cost and suitability for mass production.

The invention relates to a process for the treatment of gas containing mercaptans and acid gases, comprising the following steps: (1) separating the acid gases from the said gas and obtaining a sweetened gas and the flow of acid gases containing H₂S; (2) reacting the H₂S thus obtained in step (1) according to the Claus reaction; (3) concentrating themercaptans in at least one cut of the said sweetened gas; (4) extracting the mercaptans of the said cut; and further comprising: (5) transforming the mercaptans into dialkyl-disulfide (DSO); (6) hydrogenating DSO into H₂S; and (7) reacting the H₂S thus obtained at step (6) according to the Claus reaction. The invention also relates to an installation for carrying out this procedure.

A candle with transparent flame and flame temperature higher than paraffin candles consists of a fuel mix consisting of sorbitol, ethane diol and glycerol with a polyaramid wick. The candle can be used in catering and for the production of colored flames. For colored flames a colorant wick delivers the colorant to the portion of the flame that maximises the temperature and the residence time of the colorant in the flame. The colorant wick may be spirally wound around a former, heat set and then threaded with the combustion wick so that when alight the free end of the colorant wick relaxes to lie in the hottest portion of the flame.

The invention provides a high-efficiency porous medium burner used in a micro thermo photovoltaic system, relating to the technical field of combined combustion of a two-phrase gas. SiC ceramic spherules with diameter of 0.3mm to 0.35mm are filled in a shell of the burner in the form of oblique parallelepiped and then sintered with the shell to form a porous medium structure with porosity epsilon equal to 26 percent to 27 percent and a tail gas discharging channel is arranged on the external wall of the burner. The shell of the burner is processed first and then a bottom cover (3) of the burner is processed and sintered with the shell, and finally, in the interior of which the screened SiC ceramic spherules with diameter of 0.34mm are filled, after sintering, the porous medium structure is formed and the tail gas discharging channel is arranged in the interior of the shell (2) of the burner. The porous medium burner reduces the heat loss brought by increase of surface to volume ratio due to microscale, greatly improves the temperature distribution on the external wall of the burner, promotes combustion efficiency and combustion stability, lowers gas discharging temperature and heightens the temperature of the external wall, thus greatly advancing the efficiency of the whole micro thermo photovoltaic system.

The invention discloses an oxygen-enriched combustion transformation method for a garbage incineration grate furnace. The method comprises the steps that an oxygen injecting step is added before the primary air of a combustion section, namely, oxygen obtained by gasifying and pressure regulating is injected into a primary air pipeline of the combustion section, so the air is fully mixed with the normal air of the combustion section and is then injected into a hearth; injection of normal secondary air is stopped, a draught fan behind a cloth bag deduster is connected with a secondary fan by a pipeline, so circulated smoke is guided into a secondary air pipeline by the secondary draught fan, and is injected into the hearth by a secondary air opening. The invention discloses a corresponding oxygen-enriched combustion device. The excess air coefficient is reduced, the flame temperature in the furnace is improved, the combustion condition is optimized, the generation of pollutants such as dioxin is effectively inhibited, the efficient, stable and safe operation of the incineration equipment is ensured, the smoke exhaust is reduced, the smoke heat loss and output of the draught fan are reduced, the combustion efficiency is improved, and the investment and operation cost of smoke purifying equipment are favorably reduced.

The invention discloses a biomass fuel boiler which is equipped with an outer shell and an inner combustion chamber, wherein, a water storage room is arranged between a barrel and the combustion chamber, and a burner is arranged at the lower part of the combustion chamber. The biomass fuel boiler is characterized in that the burner is of a double-layer sleeve structure, wherein, the inner layer thereof is a cylinder with an open on the upper surface, and an ignition device is arranged in the middle of the bottom; an outer layer is a closed body which is communicated with a fan and is used for enclosing the inner-layer cylinder besides an open mouth; and air intakes are arranged at the middle part and the upper part of the bottom and the side of the inner-layer cylinder; and a particle fuel tank is arranged at the side of the shell, and particle fuel is connected to the burner through a twisting cage. In the invention, three types of combustion air such as upper straight air, middle spiral air and bottom raising air are formed in the burner by changing the mode of air supply, wherein, the bottom raising air enables biomass particles to suspend in the burner; the middle spiral air enables biomass fuel more dispersed and more fully burned; and the upper straight air performs secondary oxygen supply to achieve more thorough combustion and improve thermal efficiency.

The present invention discloses a double stage flame generator, comprising a housing, a first stage flame generator consisting of an ignition gun, an oil inlet tube and a carburetor, a second stage flame generator axially and concentrically sleeved inside a central ventilation chimney of the first stage flame generator. A vaporizer of the first stage flame generator is fixed inside an air distribution cylinder. The air distribution cylinder at the far end of the vaporizer is provided with a comparative long precombustion chamber. The axial center of the vaporizer of the first stage flame generator is provided with a guiding cylinder formed by circular holes. The guiding cylinder is used for placing the second stage flame generator, and is an air inlet path of part combustion promoting air. The second stage flame generator is positioned inside the guiding cylinder when the first stage flame generator is ignited, and stretches out to a coal powder combustor spout of the housing after the ignition. The flame generator has large power adjusting ratio, and is capable of realizing cooling furnace curve ignition. The temperature of flame is higher, and the rigidity of the flame is larger. The flame does not vie with the coal powder for air. The flame generator has further advantages of 100 percent gasification combustion, high combustion efficiency, low working pressure and large safety factor.

An environment protection type coal saving agent is proportionally prepared from sulfur fixating agent, combustion promoter, oxidant, puffing agent, catalyst and water. Its advantages are high effect to decrease consumption of coal and increase thermal efficiency of boiler, and no secondary pollution.

The invention provides a process for the heat treatment of steel products, in particular of steel strips or sheets, in which the product is brought from a starting temperature to a target temperature in a booster zone having at least one burner; the burner is operated with a fuel, in particular a fuel gas, and an oxygen-containing gas which contains more than 21% oxygen; and the product is brought into direct contact with the flame generated by the burner, the air ratio λ within the flame being set as a function of the starting temperature and/or the target temperature.

The invention discloses a low-carbon energy-saving gas, relating to a gas fuel, in particular to an industrial or civil gas fuel. The low-carbon energy-saving gas comprises the following components in proportion by weight: 60-80 of dimethyl ether, 20-36 of methanol, 1-3 of additive and 0-0.2 of nano nickel liquid suspension; wherein the additive comprises the following raw materials in proportion by weight: 15-25 of propyl ether, 0.3-0.7 of dicyclopentadienyl iron, 1-2 of naphthenate, 1-3 of anti-livering agent, 1-2 of preservative, 1.5-2.5 of dispersing agent, 8-12 of stabilizing agent, 1.5-2.5 of inhibiting agent, 1-1.4 of lanthanum(III) 2-ethylhexanoate and 0.2-0.4 of nano nickel liquid suspension. The invention solves the problems of overhigh cost, environment pollution and potential safety hazard in the prior art.

The invention relates to a gas burner capable of adjusting premix, and the gas burner is provided with a small nozzle gas pipe and a large nozzle gas pipe, wherein the small nozzle gas pipe is located in the center of the burner; the large nozzle gas pipe is sleeved at the outer side of the small nozzle gas center; air passages are respectively arranged between the small nozzle gas pipe and the large nozzle gas pipe and between the large nozzle gas pipe and the outer wall of the burner; gas orifices are respectively arranged at the front end faces of the small nozzle gas pipe and the large nozzle gas pipe; the front and rear ends of the small nozzle gas pipe and the large nozzle gas pipe are respectively provided with a baffle, the rear ends of the small nozzle gas pipe and the large nozzle gas pipe are communicated with gas through a gas inlet pipe and a gas control valve; and the air passages are respectively internally provided with an air swirl plate and the rear ends of the air passages are respectively provided with a baffle, the rear ends of the air passages are communicated with compressed air through the air inlet pipe and the air control valve. Gas quantity and combustion air rate ejected by the burner are both adjustable, and the gas burner has the advantages of fast burning velocity, high flame temperature, improved heat efficiency, decreased gas volume and low cost.

The present invention relates to a hydrocarbon fuel composition comprising (i) at least 99% by weight of a base gas; and (ii) additives comprising (a) 2 to 50 ppm organometallic compound; and (b) 100 to 5000 ppm aniline or substituted aniline and 100 to 5000 ppm toluidine. The present invention discloses addition of an additive or additive mixture to base fuel preferably, liquefied petroleum gas. The addition of additive mixture not only improves the properties of the base fuel for use as torch gas for cutting and welding application, but also reduces the consumption of both fuel and oxygen for cutting applications.

The invention relates to a full premixed combustion smelting method and smelting furnace for producing glass using the method, wherein the method consists of disintegrating the raw materials, mixing and loading into flame for full contact with the flame, thus realizing completely premixed combustion and smelting, the droplets formed in smelting fall into the smelting pool through colliding each other and forming shaped liquid. The disclosed method can increase utilization factor of heat energy substantially.

The invention discloses a spiral-flow type fishtail high-efficiency energy-saving burner. The spiral-flow type fishtail high-efficiency energy-saving burner comprises a burner and a hearth. The burner comprises a spiral-flow type air register, a cylindrical channel, a return pipe, combustion gas holes and an air preheater. The hearth comprises a furnace ring and an expansion cover. The expansion cover is a hollow interlayer and comprises an inner expansion cover, a middle expansion cover and a flue gas chamber between the inner expansion cover and the middle expansion cover. An upper opening of the inner expansion cover and a lower opening of the furnace ring form an annular flue gas shunting opening and the annular flue gas shunting opening is communicated with the flue gas chamber, flue gas holes, the air preheater and a gas outlet hole. The outer wall of the middle expansion cover is provided with a hot water sleeve. The hot water sleeve is provided with a water inlet and a water outlet. A temperature-resistant heat-collection corrosion-resistant sleeve is arranged in the inner expansion cover and the lower periphery of the temperature-resistant heat-collection corrosion-resistant sleeve is provided with a flue gas backflow hole communicated with the flue gas chamber. When the spiral-flow type fishtail high-efficiency energy-saving burner burns, the flame in a fishtail shape radially burns closely to the surface of the inner expansion cover, a pan clings to the furnace ring and is closely heated and high-temperature flue gas goes through the flue gas chamber from the annular flue gas shunting opening and then enters into the air preheater to heat air so that the hearth has a high temperature, foods can be heated fast and work efficiency is high. The spiral-flow type fishtail high-efficiency energy-saving burner is environmentally friendly, saves energy, can supply hot water and can effectively improve a kitchen environment.

Methods, apparatus and precursors for producing substantially water-free silica soot, preforms and glass. The methods and apparatus make substantially water-free fused silica preforms or glass by removing water as a reaction product, removing water from the atmosphere, removing water from the transport process, or combinations thereof. In a first embodiment, substantially water-free soot, preforms or glass are achieved by using a hydrogen-free fuel, such as carbon monoxide, in the deposition process. In another embodiment, a soot producing burner has parameters that enable operation on a substantially hydrogen-free fuel. End burners, which minimize water production, are also described. Such water-free methods are useful in depositing fluorine-doped soot because of the low water present and the efficiency in which fluorine is incorporated. In another embodiment, glassy barrier layer methods and apparatus are described for minimizing dopant migration, especially fluorine. Laser and induction methods and apparatus for forming the barrier layer are depicted. A chlorine, fluorine and silica precursor, such as chlorofluorosilane, may be utilized to form fluorinated soot. Other methods and apparatus are directed to combinations of conventional and substantially water-free processes. One embodiment is directed to combustion enhancing additives for addition to the substantially hydrogen-free fuels. The methods and apparatus in accordance with the invention are particularly useful for producing photomask substrates and optical fiber preforms.

The ether-hydrocarbon gas for welding and cutting metal consists of dimethyl ether 40-58 wt%, liquefied petroleum gas 23-40 wt%, pentane 15-20 wt% and additive 1-5 wt%. The ether-hydrocarbon gas for welding and cutting metal is compounded by utilizing the physical and chemical properties of dimethyl ether and the features of pentane, and has the features of low cost, less pollution and low toxicity, and may be used in replacing acetylene for welding and cutting metal. Owing to dimethyl ether containing oxygen in 35 %, using the ether-hydrocarbon gas in welding and cutting metal has 20 % lowered oxygen consumption.

The present invention relates to a dense-thin oil-saving ignition coal powder combustor. It includes combustor self-body, one-stage combustion chamber and ignition heat-source nozzle. It is characterized by that in the described combustor self-body that in the described combustor self-body inlet a dense-thin coal powder separation device is set, in the described one-stage combustion chamber interior two separation partition boards are set, said one-stage combustion chamber is divided into dense coal powder zone, thin coal powder zone and dense-thin coal powders mixing zone by means of partition boards, in the described dense coal powder zone an ignition heat-source nozzle is set. Said invention also provides the working principle of said coal powder combustor and its concrete operation method.