Necessity of proper selection of pump

The pump is a universal mechanical equipment for a wide, it is widely used in petroleum, chemical, metallurgy, mining, shipbuilding, electric power industry, agriculture, civil and defense departments, occupies an important position in the national economy. According to statistics, China's pump output reached 5 million 256 thousand units. Pump power consumption accounts for more than 21% of the national electricity consumption. So it is very important to reduce the energy consumption of the pump and to save energy. In recent years, we pump a lot of industry design and development of energy efficient products, such as IHF, CQB, FSB, UHB and other types of pumps, reducing the energy consumption of the pump has played a positive role.
But in various fields of national economy, because of the unreasonable selection, many pumps are in the unreasonable operation condition, the operation efficiency is low, and a lot of energy is wasted. Because of the selection of the pump is not reasonable, can not be used, or the use of maintenance costs increase, low economic efficiency. Thus, a reasonable choice of pump is also important to save energy. The so-called reasonable selection of pumps, is to consider the pump unit and pump station investment and operation costs and other comprehensive technical and economic indicators, so that it is in line with the principles of economic, security, applicable. Specifically, the following aspects: must meet the requirements of using the flow and head, which requires the pump operating time point (intersection curve and performance characteristics of the pump device) to keep running at high efficiency range, so that power is both easy to damaged parts. The selected water pump has the advantages of small size, light weight, low cost, good performance and high efficiency. Has a good anti cavitation performance, this can reduce the pumping station the depth of excavation, not to pump cavitation, smooth operation and long life. Pumping station according to the selected pump, the project investment is low, low operating costs.