Liquid ammonia was heated to 800 ~ 850 ℃, in the nickel-based catalyst, the decomposition of ammonia, hydrogen and nitrogen can be a mixed gas containing 75% H2,25% N2 of:
Ammonia bottle of ammonia evaporated after ammonia decomposition furnace into the valve control, calciner equipped with nickel-based catalyst, decomposes at a temperature of 800 ~ 850 ℃, high temperature gas cooled by the heat exchanger decomposition, and ammonia into the preheated ammonia decomposing device connected with the outlet of the molecular sieve gas purification device. Can further improve the purity of the mixture.
Ammonia bottle sent into ammonia through the ammonia valve F1, F2 to enter the carburetor (1), carburetor built with electric heating elements, electric heating elements for heating water in the carburetor, the general temperature control at 45-60 ℃, liquid ammonia in the vaporizer get warm inside pass over the heat. Vaporized into gaseous ammonia, ammonia vaporized pressure is generally controlled 0.4-0.5MPa, after ammonia gas after decompression valve, pressure at about 0.05 MPa. After the ammonia down by decay after dosing flow meter from flowing ammonia gas in a heat exchanger in heat exchange, so that the ammonia temperature by decomposing furnace out of the high-temperature gas mixture is cooled, warmed by decomposition of ammonia into the furnace is decomposed into hydrogen and nitrogen mixed gas, high-temperature mixture into the heat exchanger to cool the water cooler, and then sent to the point of use.
Duplex processes, with two parallel adsorption dryer, a job, while the other can be regenerated. Alternating work and regeneration to ensure continuous operation of equipment. Dryer work at room temperature, heated to 350 ℃ under gassing regeneration. After regeneration waste gas valve F17, through the gas-water separator vent.
Bright annealed silicon steel industry, non-ferrous metals, chrome and stainless steel and other metal materials and parts, galvanized sheet production lines, galvanized pipe production line, galvanized pipe production line, copper pipe, copper and other materials Bright annealing reducing protective gas.
Non-ferrous metal powder industry, copper-based, iron-based powder, molybdenum powder, tungsten powder, non-ferrous metal powder production and reducing protective gas industry.
Electric heating elements produce nickel wire, nickel chromium wire, molybdenum silicon rods, silicon carbide protective gas production
Brushed stainless steel wire drawing industry, bright annealed copper shielding gas
Bright annealing industry molybdenum wire, tungsten wire, tungsten electrode, molybdenum electrode, tungsten plate, molybdenum sheet, etc.
Electronic metal parts production, vacuum devices burning hydrogen treatment, the protection of sintering and sealing junction semiconductor device
Glass industry, glass industry, glass is a protective gas tin bath
Protective gas and other industries evaporated brazing welding industry.