Efficient frequency conversion pump energy saving potential
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Recently, at the "China-Denmark Climate Change Summit" co-hosted by the Danish Embassy and China's National Development and Reform Commission, a new McKinsey analysis pointed out that if all inefficient pumps are replaced by high-efficiency variable-frequency pumps, by 2020 , The emission reduction potential of carbon dioxide equivalent will be reduced to 135 million tons / year. And Denmark Grundfos developed a series of high-efficiency variable frequency pump performance is good, in environmental protection has great potential for energy saving. The company's Class A circulating pump is a high-efficiency variable frequency pump one of the models. The so-called circulating pump category is the European Pump Manufacturers Association to facilitate the choice of consumers to establish a set of energy efficiency labeling, from the best Class A to the traditional Class D. According to statistics, almost 20% of the world's electricity consumption is related to the pump system, and up to 80% to 85% of the entire pump's life cycle is spent on energy. Grundfos Class A pumps are used in a wide range of applications. In the main pump series, PT pumps are suitable for use in domestic boilers, gas (oil) boilers, home central air conditioners, electric water heaters, solar water heaters, Press the system. It can also be used in plants, hospitals, laboratories, etc. to transport and circulate fluids that resemble water. PTF pump is mainly used for corrosive liquid transport and circulation, and is suitable for the transport of clean liquid, widely used in food, pharmaceutical, water and other industries, can also be used for hot water circulation room heating, and various types of water heaters Boost and cycle. Such pumps have the advantages of low noise, no leakage, small size, light weight, long life and good reliability. The shielded pump motor stator and rotor are made of stainless steel shielded seal, when running into the motor cavity, Will play a bearing lubrication and motor cooling, while fundamentally solving the pump leakage problem. In addition, shield pump shaft and bearings made of special materials, that is, wear-resistant and anti-corrosion, increase service life and reduce noise.