What are the types of wall axial fans? What should I pay attention to when I buy an axial fan? For ordinary people, air conditioning and exhaust fans are known to solve the air flow jam, but the word "axial Fan" is not known, many people have seen the axial fan. For example, factories, warehouses, offices, residential and other ventilation needs axial flow fan. The main use of axial fan is very common, is the same direction with the fan blade cyclone, electric fan, air conditioning outdoor machine electric fan is axial-flow running fan. It is often referred to as an axial-flow rotor because of the parallel flow of the steam to the fan shaft. Axial flow fan is usually used for the occasion with high total flow and low working pressure. The axial fan is fixed at the fixed position and moves the air. The key of axial fan is composed of Centrifugal impeller and casing. The structure is simple, but the statistical data is very high. 1. Low noise wall axial flow fan low noise wall axial flow fan from the source of sound, using the design method of low rotation, high pressure coefficient, developed a wide blade, large chord length, space torsion inclined blade type, and used special fan motor Fan has anechoic Shell, built-in sound-absorbing material, obvious noise, large air volume, small power consumption, small vibration, small shape widely used in the field, warehouse, office, residential and other places of wall-type exhaust, pipeline air supply. 2. explosion-proof Wall Axial Fan explosion-proof wall axial fan is composed of three parts: impeller group, main air tube part and air collector. The explosion-proof function can be produced according to the national explosion-proof standard according to the National Authority Department's explosion-proof certification, and work safely in the site of inflammable and explosive materials. Available in the natural environment, the Shell has selected high toughness alloy materials and high precision overall design, with high impact and impact resistance. Lifting the overall design and metal surface treatment, waterproof performance is good, can avoid water immersion and strong wavy lines invasion, with excellent corrosion resistance. Choose Special Effects, energy saving, gas-discharge lamp and high reflectors, select special effects, long life, lighting coverage, brighter metal-halide lamp and metal-halide lamp two kinds of light bulbs and a variety of output power, can Be based on the office environment, lighting characteristics and light compression strength of the actual requirements of selection. Widely used in chemical plants, coal washing plants, power plants and other petrochemical plants. The Motor and blade of the square-wall axial-flow fan are in the cylinder, the shape is square, it is easier to install the wall than the cylinder fan. The whole equipment uses CAD Cam Design Scheme, with the project investment cost, ventilation volume, low noise, low energy consumption, stable operation, long life, high efficiency and other characteristics. The unit is square in shape, beautiful in appearance, easy to install on the wall, vertical shutters are installed on the air outlet, the shutters are automatically closed, and the wind is dustproof, waterproof and beautiful, which is the best choice for cooling and ventilating on the modern site The air-sucking, environment-friendly, energy-saving square axial fan and cooling and dampness are widely used in the wall exhaust of industrial and mining enterprises, folk buildings, gymnasiums, animal husbandry and all kinds of entertainment facilities. By now, I think everyone is familiar with the axial fan. Different fans have different functions and characteristics, suitable for different sites. We can choose to buy according to our actual needs. With the development of science and technology, many problems will be solved, and more high-tech products will meet everyone's needs in life and work in the future. 1. Before choosing axial fans, it is necessary to understand the production and product quality environment of domestic axial fans, such as the varieties, specifications and special uses of the products produced, the growth of new products and the environment for promotion, etc. , so as to enrich environmental protection requirements Selecting Fan. 2. Axial flow fan selection performance, should give priority to select high, small type: The adjustment of a large range of fans, should be compared to determine the interests of the decision. 3. When choosing axial fan, must endure the axial Fan's parallel connection or series connection event. Can Not Stand, please choose the same model, the same performance of the axial flow fan combination. When series connection is used, reliable piping connection is needed between the first axial fan and the second axial fan. 4, in the choice of centrifugal axial fan, in its motor power is less than 75 kw, you can not set the starting valve. Exhaust high-temperature smoke and ambient gas, select the centrifugal boiler blower, please set the starting valve to prevent refrigeration operation overload. 5. For the ventilation system with the requirement of noise elimination, first of all, the shaft smooth fan with high circumferential velocity and low impeller speed should be selected, and it is better to follow the change of the point, and according to the propagation mode of noise and vibration generated by the ventilation system, the corresponding noise reduction and vibration reduction space are adopted. Axial flow fan and motor damping space is the same, usually can use damping substrate. Like a spring-loaded shock absorber or rubber shock absorber. 6. According to the physics and chemical property of axial flow fans, axial flow fans with different main uses are selected. When transporting explosive gas and combustible gas, please choose the axial fan with smooth explosion-proof shaft. When dust removal or conveying pulverized coal, please choose a fan or pulverized coal shaft with smooth dust removal. When conveying corrosive gas, please select the anti-corrosion shaft smooth fan. When conveying high temperature accident or high temperature gas, please select high temperature fan

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