Motor remanufacturing market has great potential
[introduction]: China motor as motor production power, remanufacturing is an important part of industrial strength, and then the motor manufacturing energy saving is significant. Experts day before the analysis that China's motor remanufacturing market potential, energy saving effect is obvious, will become an important field of re manufacture.
Huge market potential
China's motor remanufacturing market has great potential. Statistics show that China's motor retains about 1 billion 700 million kilowatts, the annual electricity consumption of about 3 trillion kwh, motor power consumption accounted for 64% of China's electricity consumption, industrial power of 75%.
From the motor in terms of power, at present, the largest amount of mechanical equipment in China is the pump, compressor and fan, the three types of equipment accounted for 74.2% of the total amount of the motor.
From the motor in the use of units, the machinery and equipment in China is the largest amount of motor pump, transmission device, fan, compressor and mixer and other equipment, the amount accounted for the total number of 76.3% in the use of motor. The motor for motor pump in total accounted for by 50.2% units.
Motor power consumption. According to statistics, in 2014, China's total electricity consumption of motor system reached 35356 kwh, accounting for 64% of total electricity consumption. Among them, the total electricity consumption of industrial system is 28727 kilowatt hours, accounting for 71.9% of the total power consumption of industrial systems.
Low operating efficiency of motor system. The operating efficiency of motor system in China is generally low, energy consumption is higher, compared with the international advanced level to low 20%~30%. The efficiency of the unit itself is lower than that of developed countries by 3~5 percentage points.
Serious waste. In our country, many users consider and select the safety factor is too large, and the margin of the 10%~15% is usually taken. Therefore, the big horse drawn cart phenomenon is serious, long-term low load operation, resulting in a great waste. The industry generally believe that the low efficiency of the motor has 50% of the potential of energy saving, industrial energy saving must start from improving the efficiency of the motor.
Highlighting the benefits of motor Remanufacturing
Motor remanufacturing can effectively improve the efficiency of. Compared with conventional motor, the performance and protection level of high efficiency motor can be improved, and its efficiency is compared with that of Y and YKK series, which can increase 1-10 percentage point.
Higher efficiency of frequency conversion motor. By making use of the three-phase asynchronous motor, the power saving rate is more than 50%. If the relevant government departments and related industries to support the transformation of 5 million year plan to 6 million kilowatts of inefficient fan and water pump, the average annual investment of 7 billion ~80 billion yuan, the year can produce direct benefits 5 billion ~60 billion yuan, will account for 70% of the total investment.
Re manufacture of compact and efficient energy saving and environmental protection motor efficiency. The efficiency of the compact high efficiency energy saving and environmental protection motor is manufactured, and the average efficiency is increased by about 5% compared with the similar products of the common motor. According to the annual production of 2 million kilowatts of electric motor, the annual operation of 8000 hours, the electricity is 1 yuan / kWh, the use of the same general motors and other ordinary motors can save electricity 170 million yuan per year.
Re manufacture of variable speed variable speed environmental protection and energy saving motor. A double speed motor, the load for the fan, 6 pole motor power of 1000 kW, three times for fan and pump load power and speed is inversely proportional to the change, so running in the 8 pole state, the power of 420 kilowatts, such as day 1/3 of the time in the low state. The annual festival consumption of 139 thousand kwh.
Re manufacture of low voltage high power motor has the value of promotion. With a 450 kW, 4 pole motor as an example, the efficiency of 6kV high voltage motor is 94%, and the power of remanufacturing into low-voltage high-power motor, the efficiency can reach about 96.3%, such as the long-term use, running 8000 hours a year, you can buy a motor equivalent electricity price for a year according to the electricity industry and its marketing significance.
Re manufacture of copper rotor motor benefits significantly. From the International Copper Association and Yunnan copper die casting technology limited company since 2013, according to the amount of old motor selection is most widespread, most Y132-47.5kW motor type representative, in keeping the stator system unchanged, the new design of copper rotor.
The test results show that the replacement of a new copper rotor motor, its efficiency level increased from IE1 to IE3, with an increase of 2 energy efficiency rating, the motor efficiency, saving energy, the obsolete change to meet the new requirements of national energy (in accordance with GB18613-2012 Level 2) high efficiency energy-saving motor.
According to reports, the transformation of the Y132-47.5kW motor in the actual operating conditions of the power saving rate of 7.02%, such as the annual running time of 7200 hours, after the transformation of each motor can save electricity 3024kWh, save electricity about 2500 yuan.
According to the statistics of the national motor operation, in 2010 as an example, if the 50% of the motor to improve the efficiency of the motor rotor by changing the way, according to the calculation of the average saving of 4%, the annual energy savings of 53 billion kWh. At the same time, due to the replacement of the rotor to enhance the motor efficiency level is much lower than the cost, the cost of a new motor, not only can obtain good economic benefits, and can obtain good social benefits.
