Explosion-proof centrifugal fanCommon problems: Explosion-proof centrifugal fan is the centrifugal fan that can be used in flammable and explosive material factories, and it does not cause spark discharge during operation. Explosion-proof fans are mainly used in coal mining, petrochemical, petrochemical equipment and chemical industry. In addition, it is also used in textiles, metallurgical industry, liquefied gas in large cities, transportation, food processing, paper industry, medicine and medicine.
Explosion-proof centrifugal fanAs a key electromechanical equipment, explosion-proof fans are generally used to drive pumps, centrifugal fans, refrigeration compressors and other transmission system mechanical equipment. Following the development trend of high-tech and manufacturing, sites with explosion risks are constantly increasing.
For example, the production and manufacturing of vegetable oil used to use the traditional extraction process. In our country, we just started to introduce the overseas excellent extraction oil processing technology, but this processing technology must use organic chemical organic solvents with hexane, which is easy to use. Inflammable and explosive chemicals; therefore, the leaching oil production workshop becomes an explosion risk site, and explosion-proof fans and other explosion-proof electrical products must be used. Another example is the rapid development of roads in my country in recent years, and the appearance of a large number of gasoline and diesel filling stations has also shown a new sales market for explosion-proof fans. According to the principle of the motor, it can be divided into explosion-proof asynchronous motor, Linqing anti-corrosion centrifugal fan with quality assurance explosion-proof synchronous motor and explosion-proof DC brushless motor.
According to the application site, it can be divided into explosion-proof fans for coal mines and explosion-proof fans for processing plants. According to the basic principle of explosion-proof type, it can be divided into explosion-proof motor, increased-safety motor, positive pressure motor, flame-free motor and smoke and dust explosion-proof fan. According to the server of supporting facilities, it can be divided into explosion-proof fans for medium and mine transporters, explosion-proof fans for medium and mine winches, explosion-proof fans for rock loaders, explosion-proof fans for medium and mining fans, explosion-proof fans for gate valves, explosion-proof fans for centrifugal fans, and explosion-proof ships for ships. Fans, explosion-proof fans for lifting and hoisting metallurgical industries, and increased-safety brush motors, excitation regulators, synchronous motors for supporting facilities of hydrogenation equipment, etc. In addition, it can be classified according to performance indicators such as rated current and high efficiency, such as high-pressure explosion-proof fans, high-efficiency explosion-proof fans, high-slip explosion-proof fans, and high-starting torque explosion-proof fans. Available places for FRP centrifugal fans: FRP centrifugal fans are commonly used in manufacturing industries such as chemical plants, metallurgy, electronic devices, chemical fibers, pharmaceuticals, instrument panels, electroplating processes, and scientific research.
Explosion-proof centrifugal fanThe quality assurance leaf installation angle should be the same, and exceed the regulation of stable operation in the same plane. The assembly of large and medium-sized axial flow fans should be carried out in accordance with the requirements of the technical documentation of the machinery and equipment. Both the pp centrifugal fan and the glass fiber reinforced plastic centrifugal fan are classified as anti-corrosion centrifugal fans. They have mutual corrosion resistance and corrosion resistance. They are both common types of organic waste gas transportation and organic waste gas equipment supporting facilities. Then their difference depends on where ?
(1) The difference of centrifugal fan materials: pp centrifugal fan is made of polypropylene plastic injection molding, glass fiber reinforced plastic centrifugal fan is made of epoxy resin polyester.
(2) Compared with general pp plastic centrifugal fans and FRP centrifugal fans, the overall pressure of FRP centrifugal fans is higher than that of the overall FRP centrifugal fans, but now pp centrifugal fans have developed this new type of high-pressure centrifugal fans with a working pressure of 7000Pa, which can be used for high pressure. The usage of pressure transportation.
(3) The pp centrifugal fan should be simpler than the glass fiber reinforced plastic centrifugal fan in the manufacturing process. The price is slightly more cost-effective than the FRP centrifugal fan.
(4) The pp plastic fan is not allowed to be used to remove corrosive vapors such as aromatic compounds, aliphatic and alicyclic nitrogen oxide compounds, halogen compounds, and macrolides.
Explosion-proof centrifugal fanIt is a mechanical device that uses the keyed chemical energy to increase the air pressure and send the steam in parallel. This is this kind of driven fluid machinery. Centrifugal fans are generally used for natural ventilation, dust exhaust and water cooling for processing plants, coal mines, tunnel construction, closed cooling towers, cars, ships and buildings; natural ventilation and induced air for heating furnaces and industrial furnaces; air conditioning Water cooling and natural ventilation in equipment and electrical products; air drying and selection of cereals; air source in wind tunnels and air cushioning and promotion of hovercraft, etc.
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