Analysis on the Current Situation of Small and Medium - sized Motor Market in China
Analysis on the Current Situation of Small and Medium - sized Motor Market in China
In order to comprehensively enhance the level of motor energy efficiency, the Ministry of Industry and Information Technology in the country began in 2012 to carry out a three-year "motor energy efficiency plan." In the national policy of a strong impetus, China's small and medium-sized three-phase induction motor overall energy efficiency has been greatly improved, but the status quo and the status of the state there is still a certain gap. The future of China still need to increase efforts to promote efficient motor, eliminated in the use of inefficient motor, the development of efficient motor remanufacturing, and comprehensively promote the motor products to high efficiency, high reliability, lightweight, miniaturization of the direction of further promote energy conservation work The
1, the product situation
In 2014, the production of small and medium-sized three-phase asynchronous motors increased from 2013 to 192.8 million kilowatts, driven by industrial policies such as the National Energy Conservation Huimin Project and the National Motor Energy Efficiency Improvement Program (2013-2015) To 3.5%, the number of motor units produced 2,839 million units. Domestic sales of small and medium-sized three-phase asynchronous motor products also increased, with annual sales of 16.35 million kilowatts, an increase of 5.32% compared to 2013. At present, the domestic production of small and medium-sized motor to 2,4,6 pole-based, 8-pole and more products accounted for less proportion. According to the power calculation, in 2014 China's small and medium-sized three-phase asynchronous motor, 4-pole motor share the highest, about 64.5%. Followed by 2-pole motor, accounting for about 16.8%. 8 pole and above the motor ratio is very small, about 4.5%.
2, energy efficiency level
China in May 2012 issued a mandatory national standard GB18613-2012 "small and medium-sized three-phase asynchronous motor energy efficiency rating and energy efficiency rating", provides the general purpose of small and medium-sized three-phase induction motor energy efficiency products at all levels. According to the latest survey learned that in 2014 the domestic motor production is still 3 and 3 energy efficiency of the following motor, according to power calculation, a class of energy efficiency products accounted for only 0.33%, no sales in the country, are export products; 2 energy efficiency products accounted for 9.09%, but there are many for export, in the domestic market sales of motor, efficient motor only 4.03%; 3 products accounted for 38.37%; still have not reached the new standard 3 of the following three products, accounting for about 52.21%.
3, the export situation
According to customs data show that China's motor exports in 2014 to 7.496 billion US dollars, compared with last year, basically flat, a slight increase of 4.99%; imports are no longer two years before the strong growth momentum, the total amount of 3.676 billion US dollars, an increase of basic Flat, down slightly 1.68%.
From the customs data analysis, in 2014 China's exports of 8 categories of motor products with no significant changes in exports in previous years, the export of the most important products are still single-phase AC motor, while the other types of exports have increased slightly. Import, China's motor imports mainly to other motor (power less than or equal to 37.5W), imports amounted to 1.368 billion US dollars, accounting for 37.22%, down 9.83%.
In 2014, the average price of motor exports increased by 2.75%. In addition to the impact of rising raw material costs, the increase in the output of high-efficiency motors will inevitably lead to an increase in the proportion of its exports. Due to the high technological content of high-efficiency motors compared with conventional motors, High, then to a certain extent, will inevitably lead to a significant increase in motor export prices.
According to the results of the survey for the GB18613-2012 limited range of energy efficiency products at all levels of the export situation analysis, the domestic production of a motor are used for export, two motors in 62.35% of the motor for export, indicating that the domestic efficient motor The demand to be further improved.
4, representative enterprises
According to the China Electrical Equipment Industry Association statistics show that the national small and medium-sized motor industry output of more than 600 million kw representative of a total of 10 enterprises, both in terms of market size or technological development are far ahead, is a typical representative enterprises, as shown in the table below The
5, the use of motor status
From the use of power point of view, the current Chinese motor with the largest amount of machinery and equipment for the pump, compressor and fan, the three types of equipment, the total motor consumption accounted for 74.2% of the total, in addition to these three types of equipment, the motor is also a large number of applications Mixers, conveyors, crushers and other equipment.
From the use of the number of units, the current Chinese motor with the largest amount of machinery and equipment for the pump, transmission devices, fans, compressors and mixers and other equipment, the amount of motor used in the total number of 76.3%. Which used for all types of pumps accounted for the total number of motor used in the number of 50.2%.
6, operational analysis
The average annual running time of the motor is the cement industry, the average motor running time of 5,780 hours, followed by the steel industry, the average motor running time of 5,427 hours. The average annual operating time of the motor in the coal industry is 4,280 hours, mainly related to the harsh environment of the coal industry, flammable and explosive places are more, the general motor running time is less than 16 hours a day.
Average operating time of motor in different industries (unit: hours)
According to the motor user research, as well as with the motor manufacturing enterprises and energy-saving enterprises to verify that the general industry in China's industrial system, the average motor load rate of more than 70%, of which the highest load rate is the oil and petrochemical industry, the average load rate Up to 74.5%, the lowest is the steel industry, the average load rate of 72.9%. For the new motor, users take into account the cost of the problem, the general will choose the appropriate capacity of the motor, to avoid the "big horse car" phenomenon.
The state of the three-phase asynchronous motor three operating areas made the following provisions: load rate between 70% to 100% for the economic operation area; load rate of 40% to 70% between the general operating area; load rate of 40% The following is a non-economically operational area.
7, energy-saving technology in the future direction
(1) efficient
Improve the efficiency of the motor has become one of the largest energy-saving industries. International governments and organizations have studied energy efficiency programs for various motor systems in different application areas and in different industrial sectors, developed energy efficiency guidelines, standards and regulations, and developed relevant green energy-saving products such as: IEC unified global motor energy efficiency And test methods standards: the European Union EuroDEEM, the United States MMASTER motor system energy efficiency platform; the EU's ecological design plan. China has been actively promoting and supporting efficient motor and motor system energy conservation project development and implementation. Efficient, ultra-efficient small and medium-sized motor, speed motor, motor system energy-saving control products such as development and electrical and green energy-saving technology research has become a development trend.
(2) high reliability
Reliability has always been an important consideration for the user to select the motor. The longer life of the motor, the more compact structure is the embodiment of high reliability. Motor life and long temperature and temperature has a very large relationship, improve motor efficiency, reduce the temperature rise, can effectively extend the life of the motor. Direct drive system motor structure is more compact, can achieve the highest dynamic performance, accuracy and cost-effectiveness. Due to the abandonment of mechanical transmission components, such as reducer and belt, thus simplifying the mechanical design, significantly improve the availability and reduce operating costs.
(3) Lightweight, miniaturized
The weight of the motor, the miniaturization can effectively save the material, save space, more and more favored by the users. Many products on the motor volume and weight also put forward a very high demand, which in the oil, chemical, coal and other applications reflect the more obvious. In order to achieve the goal of lightening and miniaturization, in the design process, the use of advanced technology and high-quality materials, and adhere to optimize the design principles, effective materials in the same conditions, the unit power of the weight is reduced, is the future development trend.