The inner diameter tolerance of the hub sleeve is based on the matching journal, which ensures that the matching clearance between the shaft and the hole meets the technical requirements; the outer diameter tolerance is based on the hole expanded by the impeller, and the two must be interference fit and pressed by cold pressing. (Because the expansion coefficient of titanium is very small, if the method of heating the impeller is used, the hub sleeve will be loosened after the impeller is cooled); after the insert is completed, the through hole is drilled on the rear cover of the impeller and the shoulder of the hub sleeve, and the through hole is worn. Stainless steel pin riveting (Because the welding requirements of titanium are very strict, and it is easy to cause deformation of the hub sleeve, it is not suitable to use the welding process to fix), so that the hub sleeve can be fixed axially and the torque can be transmitted. After the keyway is machined on the hub sleeve, it can be assembled. The above method is used to fundamentally solve the wear problem of the impeller hub and achieve the expected effect. Due to a variety of factors, compressors often experience a decline in production capacity. Below, talk about the main ways to improve the production capacity of piston gas compressors. Increase the cooling effect and reduce the gas temperature. The volume of the compressor cylinder is constant. Therefore, it is necessary to lower the temperature of the gas to ensure the cooling effect of the cylinder water jacket and the cooler. The measures are: regularly clean the cylinder water jacket and cooler to remove slime and scale to ensure the cooling effect. Increase the amount of water supplied. If it is found that the compressor temperature is too high due to insufficient water supply, increase the amount of cooling water to reduce the outlet temperature and the corresponding cylinder cavity temperature. Reduce the temperature of the circulating water. When the supplied cooling water temperature is high (especially in summer), fresh cold water should be supplied, or the water should be cooled and recycled. The use of better water cooling water is the fundamental way to prevent scaling. The water quality can be achieved by precipitation, filtration purification or chemical softening. Bathroom Brass Tube,Shape Brass Tube,Seamless Brass Tube,Copper Alloy Tube Brass TAICANG CITY JINXN COPPER TUBE CO.,LTD , http://www.jinxincopperpipes.com
August 13, 2024