Cavitation of centrifugal pump is a serious damage accident of centrifugal pump. When cavitation occurs, the pump will have strong vibration and abnormal noise, which will make the pump unable to operate normally in serious cases. In the process design, the following measures can be taken to avoid cavitation: there is a certain degree of supercooling before the liquid enters the liquid pump; The pump body is installed at a lower position, so that there is a certain static pressure at the liquid inlet; Before entering the pump, pay attention to cold insulation or use vacuum pipe.
DEAR Air Separation and Qinyang Hongda Iron and Steel Co., Ltd. signed a supply contract for a set of KDON (Ar) - 7000/3000/180 air separation equipment supporting the 75-ton electric arc furnace project. This equipment is also a typical case of ultra-low pressure energy-saving air separation process flow. Users have put forward higher requirements for energy conservation, high efficiency and environmental protection of equipment. Deer Design Institute has conducted a comprehensive investigation and understanding of customer needs and site conditions, A set of advanced and reasonable design scheme has been formulated. The equipment has been successfully debugged at one time, all parameters have reached the production standard, the equipment operates stably and is energy-saving and environmentally friendly, which has created high economic benefits for customers. Hongda looks forward to cooperating with Deere again.
