35results about How to "Not easy to temper" patented technology

The invention relates to a burner, which comprises a gas mixing chamber for mixing gas and air, and is characterized in that: a cover plate is detachably arranged on the top of the gas mixing chamber; and a plurality of fire holes which allow flame to pass through are distributed on the cover plate at intervals. Compared with the prior art, the burner has the advantages that: the cover plate is arranged on the top of the gas mixing chamber, is provided with the fire holes and can effectively buffer the pressure of the flame jetted from jet orifices, so that floating flame is formed on the surface of the cover plate; and the whole burner is difficult to temper.

The invention relates to a hydrogen energy vehicle power system for ambient air purification. The hydrogen energy vehicle power system comprises a transmission system, a hydrogen fuel engine, a metal hydride storage tank, a hydrogen compression unit, a hydrogen stabilized tank, an inverter, a, electric-generator, an expansion machine, a storage battery and an exhaust gas disposal system. The storage battery is electrically connected with a power bus and the inverter, and the inverter is electrically connected with the electric-generator; the metal hydraulic storage tank is connected with the hydrogen fuel engine through the hydrogen compression unit and the hydrogen stabilized tank, and an exhaust outlet of the hydrogen fuel engine is connected with the exhaust gas disposal system through a turbo charger; the hydraulic fuel engine or / and the number one electric-generator is / are connected with a power combiner, the expansion machine is connected with the power combiner, and the power combiner is connected with the transmission system through a transmission shaft. By the combination of the hydrogen fuel engine with the electric-generator, operation efficiency of the hydrogen energy vehicle power system is improved; by recycling exhaust heat, atmospheric pollution is reduced, and natural environment is favorably protected.

The invention discloses a combustion improver for liquefied natural gas. The combustion improver comprises, by weight, 20-35 parts of tung oil, 10-25 parts of ethanol, 10-30 parts of n-butanol, 10-27 parts of cyclopentanol, 12-32 parts of ethylene glycol monobutyl ether, 5-20 parts of methyl ethyl ketone and 2-12 parts of borane tetrahydrofuran. The combustion improver has the advantages that the calorific value of the fuel gas can be increased effectively, the combustion speed of the liquefied natural gas can be increased greatly, high temperature can be obtained by combustion in oxygen, the liquefied natural gas with the combustion improver can effectively replace acetylene and be used for flame welding and cutting of metal, the firing point of fuel can be lowered, fuel can be saved, and deep application of the fuel can be achieved.

The invention discloses a roasting gun device. The roasting gun device comprises a support, a gun body and a gun head, wherein the middle part of the gun body is of a sleeve structure with an inner layer charged with fuel gas and an outer layer charged with compressed air, a bearing seat for allowing the gun body to rotate around the support is arranged on the rear part of the gun body, and a fuel gas connector and a compressed air connector are formed in the rear part of the gun body; a fuel gas-air mixing pipe and a secondary mixing and decompression pipe for supplementing air and balancing a gas pressure are arranged on the front part of the gun body; the support is used for installing and supporting the gun body and enabling the gun body to rotate and move around an axis in the horizontal direction; a main fire hole is formed in the middle of the gun head, and 18-28 auxiliary fire holes are distributed around the gun head; and the outer layer of the gun head is a heat-collecting cover. According to the roasting gun device disclosed by the invention, a fuel and air are uniformly mixed, air needed for combustion can be automatically balanced, and the temperature of the gun head can be lowered, so that the problems of poor roasting effect and unsafety of unshaped casting material products in scrap copper smelting, and anode copper casting dies are solved.

The invention relates to an industrial welding and cutting gas prepared by refining biogas. The biogas is taken as a main fuel, and a multifunctional catalyst is added into the biogas in a volume ratio of 15:100,000 to form the industrial welding and cutting gas, wherein the multifunctional catalyst mainly comprises the following components in part by mass: 20 to 25 parts of No.200 solvent gasoline, 15 to 20 parts of hexahydrotoluene, 10 to 15 parts of butyl acetate, 8 to 10 parts of glycol dimethyl ether, 6 to 12 parts of methyl ethyl ketone, 5 to 18 parts of n-butyl cyclohexane, 5 to 15 parts of n-butyl acetate, 6 to 12 parts of p-tert-Butylphenol and 4 to 6 parts of organic boride. The multifunctional catalyst and the biogas are matched, so that the dissolubility and dispersity of various fuels are improved, the fuels well dissolve and adsorb the methane gas, the quality of the fuels is improved, the flame temperature of the methane combusted in oxygen is improved to reach the combustion temperature of acetylene gas, and the aim of replacing the acetylene gas is fulfilled.

The invention provides a cutting gas capable of increasing combustion heat efficiency of a methane gas and a preparation method of the cutting gas. The cutting gas comprises a catalysis warming agent and the methane gas, wherein the catalysis warming agent comprises the following components in parts by weight: 10-30 parts of 190# solvent gasoline, 10-25 parts of petroleum ether, 20-30 parts of absolute ethyl alcohol, 10-15 parts of allyl alcohol, 10-15 parts of acetone, 10-15 parts of propargyl alcohol, 5-10 parts of raw tung oil, 3-5 parts of simethicone, 0.5-1.5 parts of potassium ferricyanide and 1-3 parts of nicotine nitrile. The invention further relates to the preparation method of the cutting gas. The cutting gas capable of increasing the combustion heat efficiency of the methane gas has the advantages of remarkable energy saving efficiency, high combustion speed, high flame temperature, high cutting level and the like. The cutting gas capable of increasing the combustion heat efficiency of the methane gas, provided by the invention is capable of saving the fuel by above 20 percent and oxygen by above 25 percent when applied to a flame welding and cutting process.

The invention relates to an intelligent and anti-corrosive type metal fiber surface burner, comprising a burner head, a separated type long-open-fire automatic ignition device, a gas-air mixing system and an intelligent control module, wherein the separated type long-open-fire automatic ignition device is arranged at one side of the burner head and is used for igniting the burner head; the gas-air mixing system is connected with the burner head and is used for conveying air-gas mixing gas needed by burning for the burner head; the intelligent control module is connected with the separated type long-open-fire automatic ignition device and is used for controlling the ignition of the separated type long-open-fire automatic ignition device; and the intelligent control module is connected with the gas-air mixing system and is used for controlling and adjusting the flow of air-gas mixing gas conveyed by the gas-air mixing system. The intelligent and anti-corrosive type metal fiber surface burner has the advantages that the corrosion problem of soup and juice and the like is solved, the maintenance cost is reduced, the emission is low, the efficiency is high and the intelligent electrodeless-load adjustment can be realized.