欧冠热门

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Products
Air cooler

Brief introduction

Air cooler air cooler referred to air as a coolant, the cooler can be used also as a condenser. Air Cooler consists of tubes, brackets and fans. Air cooler hot fluid flowing in the pipe, blowing air outside the tube bundle. Since the amount of heat required for great ventilation, and air pressure is not high, so the use of axial fan (see fluid transport machinery). Bundle type and material of great influence on the performance of air coolers. Since the air-side heat transfer coefficient is very small, it is often applied in the tube fins to increase the heat transfer area and fluid turbulence, reduce the thermal resistance. Air Cooler Most of radial fins. Air cooler is usually OD 25mm light tube, fin height of 12.5mm and a low fin tube fin height of 16mm high fin tube. Fin usually with high thermal conductivity of the material (most commonly aluminum), wound or mounted to the light pipe. To strengthen the effect of heat transfer air cooler, the inlet air can water spray. This not only reduces the temperature of the air, but also increases the heat transfer coefficient. Air cooling may save a lot of water for industrial use, reduce environmental pollution, reduce infrastructure costs. Especially in water-scarce areas to air cooling instead of water cooling, you can ease the problem of insufficient water.

Structure

欧冠热门Quality air cooler consists of tubes, ventilators and framework of three parts. Including heat transfer tube bundle, tube box, side and cross beams and the like. It can be horizontal, vertical, and (the word type) three basic forms slant-style layout (Figure 2). Among them, the horizontal arrangement of large heat transfer area, uniform air distribution, heat transfer effect; when the slant arrangement, ventilator installed in herringbone central space, small footprint, compact structure. To offset the lower heat transfer coefficient on the air side of the impact, usually light tube wall mounted finned tube. Finned tube as the heat transfer tubes, the heat transfer area can be expanded. Finned tubes arranged in layers, which ends by welding or expanded joint method of connecting the header. Exhaust pipe is generally 3 to 8 rows. Series bundle size up to 12 meters. Light tube diameter of 25 mm and often 38 mm, fin height generally take 12 to 15 mm, width of the bundle 100 to 3000 mm. Finned tube air cooler is the core element in the form of equipment and materials directly affects the performance. The tubes can be carbon steel, copper, aluminum and stainless steel; fin material according to the environment and manufacturing process to determine, mostly with industrial aluminum, corrosion in demanding conditions of the manufacturing process or in special cases also the use of copper or stainless steel. Fins can be arranged horizontally or vertically. The basic form of the finned tube (Figure 3) are: around the chip, embedded chip, rolling chip, chip sets, lug type, oval tube, turbulence formula (including Spoke, shaped and slotted corrugated Wait). The structure of the main tank pipe flange, pipe-clogging and collection tube (Figure 4). The former are generally used for low-voltage, high voltage for the latter two. In order to meet the thermal expansion of the tube bundle, the header is not fixed at one end to allow displacement along the length of the tube. Fans usually Axial Fan.

欧冠热门Application

Air (air) cooler is mainly used in mobile machinery (excavators, loaders, forklifts, cranes, combines, road construction machinery, engineering machinery, etc.), air-cooled forcibly cooled to the required temperature working medium.

 

 
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