If the original unit is inefficient or has a partial modification method, it is recommended to redesign a centrifugal compressor that meets the energy saving requirements, or a partial modification to increase the compressor flow. It mainly includes: (1) increasing the suction pressure, reducing the suction temperature, increasing the mass flow rate; (2) increasing the compressor speed and increasing the flow rate; (3) increasing the width of the flow passage portion of the main components of the impeller diffuser, changing the impeller blades and The geometric mounting angle of the diffuser vanes; (4) the use of rotatable inlet vanes to adjust the inlet angle of the impeller and diffuser. According to statistics, after the partial transformation of the compressor, the flow rate can be increased by 15%, and the unit can save 5% or more. The centrifugal load compressor group of the local load working point of the unit can be reasonably selected. The vast majority adopts the imported adjustable guide vane to adjust the cooling capacity. When the adjustable vanes have different corners, according to the characteristic curve of the unit, as the load of the unit decreases, the energy head of the centrifugal compressor also decreases. Because the evaporating temperature increases and the condensation temperature decreases, the unit's The local load point is substantially in a straight line, and the slope of the line depends on the extent to which the energy head decreases with load. In order to operate at high efficiency, it is more reasonable to use multiple units in parallel. Another advantage of using multiple units in parallel is that it can expand the cooling capacity adjustment range of the system and avoid the bypass adjustment method, thus saving energy. For units with a running load of less than 10% and 20%, it is meaningless to continue to maintain the machine operation due to the sharp increase in energy consumption costs. Other cooling methods should be considered. Proper operation and maintenance of the unit Proper operation and maintenance can operate the centrifugal compressor unit under relatively good conditions, such as: excessive or insufficient liquid filling of the evaporator, oil in the evaporator, and poor closing of the bypass valve. Common operational problems, such as timely treatment and resolution, can significantly reduce the energy consumption of the unit. For the evaporator, the excess liquid filling or insufficient liquid filling can be judged by the suction superheat of the compressor. If the suction superheat is too high, There may be insufficient filling, and vice versa. Therefore, during the operation of the unit, attention should be paid to observing the suction superheat of the compressor and making corresponding operations in time. Best Mixer Shower,Bath Shower Mixer,Bath And Shower Mixer,Wall Mounted Shower Mixer Kaiping City Yibiao Sanitary Ware Co., Ltd. , https://www.faucetaoli.com