The air spray gun is a device in which air flow and liquid flow affect each other to produce the mist, the special design of internal structure of the device can achieve even liquid and gas mixture, producing...

The air spray gun is a device in which air flow and liquid flow affect each other to produce the mist, the special design of internal structure of the device can achieve even liquid and gas mixture, producing the mist of micro drop size or coarse drop spray. Liquid spray with more fine size (30 μm or so) is usually obtained by increasing air pressure or reducing liquid pressure, resulting in high air flow rate and liquid flow rate. Heavy oil catalytic feed nozzle comprises the first mixing chamber, the second mixing chamber, the nozzle cavity and the spray head. The first mixing chamber and the second mixing chamber are fixedly arranged in the nozzle cavity, the first mixing chamber is arranged at the entrance end of the nozzle cavity, the spray head is arranged at the exit end of the nozzle cavity; it also comprises the atomizing structure, which is fixedly arranged in the nozzle cavity; the atomizing structure comprises a support and a spray body which both are fixedly connected together; the shape of the atomizing structure forms Karman Vortex Street phenomenon around. 1. Heavy oil catalytic feed nozzle makes full use of mixing the material pressure and flow rate with the steam, and two mixings are conducted in the nozzle cavity to achieve the effective mixture of oil and air. 2. The heavy oil catalytic atomizing nozzle can achieve the atomizing of oil and air sufficiently with the atomizing structure to form a cone controllable solid spray field, improving the atomizing quality. 3. The heavy oil catalytic atomizing nozzle has the advantages of simple structure, convenient operation, good operation elasticity and high reliability. The atomizing particles (D32 diameter) of the denitration gun are usually 50-100μm, and the outer drops are thick and the intermediate drops are fine, so as to ensure the best penetration capacity. If the particle is too fine, the penetrability will be poor, and the denitration efficiency will be reduced. If the particles are too thick, the overall surface area of particles will be small, and also the denitration efficiency will be reduced. Moreover, for large particles, the flow rate of flue gas will cause the failure of spray particles to be completely vaporized in a short period of time. Sometimes liquid drops will be produced, resulting in furnace tube explosion. The optimum atomizing particle size should be designed according to the specific project. The pressure liquid sulfur atomizing gun (commonly known as sulfur spray gun) is mainly used for liquid sulfur atomization process of sulfur-made acid, so as to facilitate the full combustion of sulfur. The sulfur spray gun is welded from stainless steel, and the nozzle is made of 316 stainless steel, which has good corrosion resistance and heat resistance. And the swirl cavity nozzle of unique design will be equipped to achieve good atomizing effect and long service life The shape of the product is cylindrical, and the interface part is of the outer hexagonal structure, which is convenient for inspection and maintenance. The connection mode is the internal thread connection. The atomizing field is the hollow cone field, which is often used in cement plant to increase humidity and cool down, and desulfurization and denitrification in power plants

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