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Intelligent Pumps (Intelligent Pumps) is a general term for a pump or pump system that has some computer processing power that can partially replace artificial intelligence. With the development of science and technology, especially the rapid development of computer and information technology, the traditional pump manufacturing industry has been moving toward energy conservation, intelligence and modernization. Should be said that in the pump design, manufacture, operation, maintenance and selection, sales and Other aspects, there are intelligent space for development. However, at present, the most obvious advantage of smart pumps is energy saving and automatic control, and the first smart pump required is also due to energy saving. First, the pump energy saving potential Pump is energy-hungry, according to data, the pump power consumption accounts for about 20% of the total electricity consumption, pump motor power matching the country's total capacity of about 45% of the motor. In the oil and chemical plants, the pump power consumption is even higher, respectively 59% and 26%. Therefore, the energy saving pump is a far-reaching event. In our country, the energy loss of pump operation system in the past is very big. The adjustment of centrifugal pump adopts the methods of valve control and opening and closing bypass. According to an overseas survey, the average efficiency of 1690 pumps operating in 20 factories is only 40%, with 10% of pump efficiency being even 10%. The above figures show how huge potential for saving energy is in the pump industry. If all the pumps in service in the country can operate at a 1% efficiency improvement, the annual energy saving will be 4.4 billion kW · h, equivalent to 3.8 billion yuan of electricity (calculated at 0.865 yuan / kW · h for the peak industrial electricity in Shanghai). Pump efficiency improvement includes two aspects: First, improve the design efficiency of the pump host. As the designer in the product design, has done everything possible to improve the efficiency of the host at the design point, so to improve the efficiency of 1% is very difficult. The second is to improve the efficiency of the entire pump operation system. According to some information, the original bypass adjustment into variable speed regulation, the efficiency of the entire pump system can be increased by 30% or more. Therefore, smart pumps mean not the smart pump itself, but the pump's entire Intelligent System (Intelligent Pumping Systems). The emergence of intelligent pump, centrifugal pump into the modern mode of regulation, but also brought a new concept of management, it can be said that the pump system engineering and management of a revolution, but also the inevitable trend of the development of the pump. Centrifugal pump flow and speed of the first-order proportional to the lift proportional to the square of the speed, power and speed is proportional to the cube, so if the centrifugal pump bypass adjustment to speed adjustment, the effect will be very obvious. If the flow rate is reduced by 10% ~ 20%, the pump parameters are generally shown in Table 1 (without considering the influence of the performance curve). In fact, centrifugal pumps are affected by the performance curve. When the flow rate decreases, the lift will increase, so the lift required for the process can still be maintained, while the energy saving effect will be slightly lower than that in Table 1. The energy-saving effect of other adjustment methods is in between the two. Table 1 Centrifugal Pump Frequency Comparison and Bypass Adjustment No. Adjustment Frequency Control By-pass Adjustment 1 Flow Adjustment 100% 90% 80% 80% ~ 100% 2 Motor speed n / (r / min) 2950 3 Frequency Frequency f / Hz 50 45 40 50 4 Lift change H (%) 100 81 64 100 5 Power consumption change (%) 100 73 48 100 Second, the whole life cost The whole life cost LCC (Life Cycle Costs), also translated as "life Cycle costs "refers to the cost of the entire process from product planning to product abandonment. It includes both the producer's perspective and the consumer's perspective. However, consumers buy products from the hands of producers, therefore, product costs plus product profits, coupled with the cost of consumption, has become the user's full life cost. According to the author of "The Lifetime Costs of Pumps" [1], the life-cycle cost of a pump includes the initial installation cost, running cost (ie electricity cost), maintenance fee and other expenses. For a typical medium-sized pump plant, the share of its four-part costs is shown in Figure 1. Figure 1 pump life-cycle costs of four basic costs Figure 1 cost ratio (wages, price factors, etc.) is made with reference to foreign standards.