Severe energy consumption
The motor industry has a major task in energy conservation and emission reduction. With the introduction of relevant national subsidy policies, the high-efficiency motor market is gradually optimistic in the industry, but the development and application of high-efficiency motors can achieve the energy-saving and emission reduction effect we expected. ?
As the motor industry of the basic kinetic energy industry, its task of energy conservation and emission reduction is quite significant. With the introduction of relevant national subsidy policies, the high-efficiency motor market is gradually favored by the industry, but only by the development and application of high-efficiency motors. Can we achieve the energy saving and emission reduction effect we expected?
Metal raw materials are the most basic constituent elements of motor production. The sharp increase in demand will inevitably bring huge energy consumption. According to data released by the National Development and Reform Commission, in April, the added value of industrial enterprises above designated size increased by 13.4% year-on-year, mainly in high energy consumption. Among the products, the output of steel and non-ferrous metals increased steadily, and the electricity consumption of these industries rose sharply.
The energy consumption of China's steel and non-ferrous metals industry is mainly concentrated in the three major areas of mining, smelting and processing. At present, the average energy consumption per ton of metal is still compared with the international advanced level. From the perspective of different products, the average electricity consumption of domestic electrolytic aluminum is 2% higher than the international level; the average energy consumption of copper flash furnace smelting is 20% higher than the international level; the average energy consumption of zinc smelting in kiln closed blast furnace is 33.4% higher than the international advanced level; The average energy consumption of smelting is 84.2% higher than the international advanced level. According to the National Bureau of Statistics, in 2006, the domestic electrolytic aluminum DC power consumption was 13,506 kWh per ton, the comprehensive energy consumption of alumina was 0.894 tons of standard coal per ton, and the average energy consumption of copper flash smelting was 0.606 tons of standard coal. The electricity consumption is 823 kWh per ton.
In addition to the high energy consumption of the raw materials of the products, domestic motors also have some problems in technology upgrades, and these problems cause the motor to consume a lot of energy during operation:
1. The motor system energy-saving control technology is backward and the system operation efficiency is low.
Unreasonable system matching, serious horse-drawn car phenomenon, long-term low-load operation of the equipment; motor system control to meet the process requirements as the sole target, the system adjustment mode is backward, most fans, pumps use mechanical throttling adjustment, system operating efficiency low.
China's motor system energy efficiency detection technology, system energy-saving emission reduction overall solution and energy-saving control technology, load matching matching motor and special control device matching integration technology, energy-saving effect and cost-effective to achieve the best matching system energy-saving technology, etc., basic Still in the blank.
2. The motor control full-time level is relatively backward.
The motor drive speed governor system control technology is quite different from that of foreign countries. The motor control device mainly controls to meet the process requirements. There is no special motor system energy-saving control device, and the electrode system using the variable-flow adjustment device is still a minority. To 10% of the total.
3. The development and production of special motors matching the system has just started.
At present, the specialization rate of domestic motors is progressing slowly. The reason is that China's motor industry has not paid enough attention to the development of product varieties in the development process, and the rapid response market development ability is weak, so that in many occasions, ordinary motors are used instead of special motors to operate.
Affected by factors such as high energy consumption of primary materials and technical deficiencies, the motor needs to consume a large amount of energy from manufacturing to operation, and the motor that accounts for 60% of the total electricity consumption in the country and 80% of the industrial electricity consumption has become China. The most power-hungry product.
Almost all the motors in all industries are so amazing in terms of energy consumption. High energy consumption and high emissions not only restrict the development of China's electric motors in terms of cost, but also with the introduction of carbon tariffs in various countries, the motor industry is still in the low carbon aspect of products. If the progress is slow, the motor exit will be affected.