Telescopic tube telescopic tube Figure _ _ canvas Qingyun Dahang

High temperature telescopic tube diameter: 76mm - 1500mm diameter size of any temperature: -30 ° --450 ° (according to customer requirements to strengthen the material to achieve a higher temperature) Working Pressure: 450mmWG / (to strengthen the material according to customer requirements to meet higher working pressure) wind speed: 30 m / sec (depending on the diameter size) Purpose: plant, electronic equipment, sewer, metallurgy, moisture, emissions, cooling, ventilation engineering of drainage environmental smoke, moisture, dust, high-temperature gas, ventilation, etc. telescopic tube change the tube or bellows connected to the larger pipeline stretching temperature is a protective measure. Since the solid thermal expansion and contraction, the amount of change in length was not much, but it happens to impede the deformation of the object, there is a huge force. For example, the cross-sectional area of ??1 cm 2, a length of one meter of steel bars, when the temperature rises 40 ℃, elongation of only about 0.0005 meters. If you do not let it spread out, it would limit its objects produce 104 Newton force. The larger cross-sectional area, the greater the force. To do this in engineering technology for power generated by the thermal expansion, should consider taking the necessary measures. For example, steel bridges must put an end mounting on movable carriage, so that the bridge can freely stretch. Another example is laying tracks, are also leaving room for expansion segment.