Motor system energy saving settles in the national energy conservation and emission reduction key areas
There are many types of motor products in China, but the efficiency is not high. Compared with developed countries, the average efficiency is 3-5 percentage points lower, and the operating efficiency is 10-20 percentage points lower. According to the investigation of the air-conditioning and refrigeration market, there are about 100 million industrial motors, 25 million compressors and 30 million fans and pumps in China. But there are only 30-50 companies with the ability to design, produce, and test high-efficiency motors. Some industrial motor system users lack understanding of the economic benefits brought by the energy saving of the motor system, or have obstacles to the technical problems of energy-saving transformation of the motor system, and lack of effective information platform to share the successful experience in energy-saving transformation of the motor system.
Motor is an important industrial energy-consuming equipment, widely used in pumps, fans, compressors, transmission machinery and other fields, and its power consumption accounts for more than 60% of China's total industrial power consumption. The domestic project of energy saving of motor system is listed as one of the 12 key energy-saving projects in China, and it is the key area of national energy conservation and emission reduction work. According to the reporter of the Refrigeration Express, in order to promote the implementation of the energy-saving project of the motor system, the China National Institute of Standardization, the Energy Conservation Service Industry Committee of the China Energy Conservation Association, the China Investment Promotion Office of the United Nations Industrial Development Organization, and the University of Coimbra, Portugal, jointly designed and implemented China's motor system energy conservation challenge project under the framework of the EU SWITCH-ASIA project. In the past three years since the implementation of the project, more than 1,500 industrial motor users have benefited from achieving an annual emission reduction of more than 1 million tons of carbon dioxide.
Due to the large amount of motor use, the National Development and Reform Commission attaches great importance to the promotion of high-efficiency motor products. The three-year energy-saving product Huimin project will strengthen the promotion and use of energy-efficient products through financial subsidies, and improve the energy efficiency of energy-using products. It is understood that in the next three years, we will promote 10 types of products such as air conditioners, refrigerators, flat-panel TVs and motors with energy efficiency rating of 1 or higher.
According to relevant experts from the China National Institute of Standardization, the high-efficiency motor market accounts for only 10%-15% of the total market, and 90% of these high-efficiency motors are used for export. Market research shows that the sales price of high-efficiency motors and ordinary motors is 70 yuan/kw-90 yuan/kw and about 40 yuan/kw, respectively. In addition, the motor system is inefficient and operates at low efficiency for a long time. The motor system is unreasonably matched, and the big horse-drawn car phenomenon is serious. From the 400 cases of the project, the potential for motor improvement is very large, almost half. At present, advanced technology mainly relies on imports, which is expensive, and good technology applications are not extensive. Due to various reasons such as system, technology and enterprise awareness, there is a lot of room for improvement in energy-saving retrofit of China's motor system. If the operational efficiency is increased by 2%, it will save 20 billion kWh nationwide.