The petrochemical industry is an energy industry and a major raw material industry. With the rapid development of China's economy, the demand for petroleum and petroleum products such as gasoline, diesel, kerosene, and lubricating oil is increasing, and oil and natural gas are used as raw materials. The demand for three synthetic materials such as synthetic resins, synthetic rubber, and synthetic fibers will also increase greatly.
All raw materials and products of petrochemical industry contain a large amount of flammable and explosive substances, so all equipment involved in the production process must have explosion-proof function, and must be installed according to the actual technical requirements. .
Explosion-proof motor is the main power equipment, and it is the largest driving device in petrochemical production equipment. It can be used to drive pumps, fans, compressors, reducers and other transmission machinery in the petrochemical industry. It is a compulsory course for every person engaged in the petrochemical industry.
China's explosion-proof motors have been developed over the years, and the varieties are relatively complete. Especially since the reform and opening up, many foreign advanced technologies have been introduced, and the technical performance and product quality have been greatly improved. In the general petrochemical production process, the domestic explosion-proof motor can fully meet the process requirements, no matter in terms of functionality or reliability, it is not worse than foreign imported motors, and can even completely replace some foreign imported explosion-proof motors. For example, China's independent research and development of Nanyang, Jiamusi explosion-proof motor is the leader in domestic brands, but also the largest competitor of foreign explosion-proof motors in China.
However, due to the complexity of petrochemical production and processing, there are special requirements for the technical parameters of the motor in some occasions. For example: Zhonghai Shell Nanhai Petrochemical Project with a total investment of 4.3 billion US dollars, a total investment of 24 billion Nanjing Liuzi BASF 600,000 tons ethylene integration project, a total investment of 22.4 billion Shanghai Secco 900,000 tons ethylene integration project, Zhuhai BP PTA High-power, ultra-high-voltage explosion-proof motors are used in the project. These special requirements of explosion-proof motors are currently not available in China. Even in the international market, only a few manufacturers can produce them. They must rely on imported brands, and SCHORCH in Germany The outstanding advantages of high-power, ultra-high-voltage explosion-proof motors have finally won the favor of the owners. For example, in the petrochemical production process, sometimes due to the limitation of the space environment, the motor must not only have a relatively high explosion-proof grade and protection level, but also must have a compact and space-saving design requirements, and in a poorly ventilated environment. It also needs the motor to have the forced air cooling function (ie: the internal ventilation is fully enclosed) to ensure the normal heat dissipation of the motor. It is worth mentioning that the Italian CEMP low-power explosion-proof motor has obvious advantages in the design of the forced air cooling function. It has been widely used in many large domestic petrochemical enterprises such as Maoming Petrochemical, Guangzhou Petrochemical, Yunnan Yuntianhua, Luoyang Petrochemical, etc. This brand is also widely used in other large petrochemical projects in China. Such explosion-proof motors with stricter requirements on the size of the motor and special functions, the current domestic explosion-proof motor manufacturers also have a big gap compared with foreign brands, and must also rely on imported brands.
Explosion-proof motors can be used in the oil and gas, petrochemical and chemical industries. In addition, it is widely used in mining, textile, metallurgy, city gas, transportation, grain and oil processing, papermaking, medicine and other industries. Therefore, grasping the market of explosion-proof motors is an indispensable part of improving domestic industrial brand building.
Although the gap between domestic explosion-proof motors and foreign brands is shrinking, it is undeniable that the future of domestic explosion-proof motors is still very long. In summary, domestic brands still need to improve in the following aspects:
The structure is compact, and the domestic explosion-proof motor needs to be improved in terms of equipment structure. The domestic motor has the disadvantages of large, stupid and heavy, which will inevitably lead to a larger use of steel in the production of the motor and a relatively high material cost of the motor. The large size allows the user to provide more space to install the motor.