The развитие тенденция на помпа енергоспестяване технология в Китай

At present, vector-controlled inverters have been widely used in the stepless speed regulation of AC motors in general machinery, textile, printing and dyeing, papermaking, steel rolling, chemical and other industries in many electric driving occasions at home and abroad, which have obviously achieved energy-saving effects and meet the requirements of process and automatic speed regulation. However, it has not been fully used in the application field of fans and pumps. The main reason for this is that there is not enough understanding of the large amount of energy savings that can be saved by the loads of fans and pumps. Therefore, we will introduce the energy-saving principle and application status of fans and pumps to customers. The electricity consumption of fans and pumps accounts for more than 60% of industrial electricity consumption, and if we can fully use frequency converters in this field to carry out frequency conversion stepless speed regulation, it is a policy to rejuvenate the country for the development of processing and manufacturing industry and serious shortage of electricity. A fan is a device for transferring gases. A water pump is a device that transports water or other liquids. Both are essentially the same in terms of their structure and how they work. Let's take the fan as an example. Natural ventilation cooling tower, circulating water pump, circulating water pipeline and pipeline accessories are an important part of the circulating water system of the power plant. The core part of the circulating water system design is the rational selection and configuration of natural ventilation cooling tower and circulating water pump, which has the most investment cost and the most complex construction in the construction of circulating water system, and has the greatest impact on the total investment of the power plant. It directly affects the unit cost of power engineering construction and the payback period of power plant investment. The optimal design of the water supply system is the basis for the selection of the system scheme, and the annual cost of the circulating water pump motor has the greatest impact on the scheme design. On the premise of ensuring the safe operation of the steam turbine and generating power at full load, how to reduce the annual cost of the motor is worth thinking about for every engineering designer.