Explosion-proof motor explosion-proof principle can be divided into flameproof motors, increased safety motors, positive pressure motor, no spark motor and dust explosion-proof motor. This paper describes the five categories of motor product line and its characteristics, YB2 series flameproof three phase asynchronous motor will replace the YB series three-phase asynchronous motor YA2 series increased safety will replace the YA series, also introduced TAKW4000 of- / 2600 4000kW increased safety brushless excitation of synchronous machine. Concluded that the trend of the development of the mining and petrochemical explosion-proof motor.

    Explosion-proof motor is mainly used for coal, oil and gas, petrochemical and chemical industry. In addition, textile, metallurgy, city gas, transportation, grain and oil processing, paper making, medicine and other departments are also widely used. Explosion-proof motor as the main power equipment, typically used to drive pumps, fans, compressors and other transmission machinery.

    With the development of science and technology, production of explosion has also increased. For example, edible oil production in the past with the traditional press law process, after the 1970s, China began to introduce advanced foreign oil extraction process, but the process to be used in chemical solvents containing hexane, hexane is flammable and explosive substances; oil extraction plant became explosion danger, requires the use of explosion-proof motor and other explosion-proof electrical products. Another example, in recent years, China's highway rapid development of a large number of fuel filling stations, but also to the explosion-proof motor provides a new market.

    Product Category

    1. The motor principle can be divided into explosion-proof induction motor, explosion-proof synchronous motor and explosion-proof DC motor.

    2. Use of premises can be divided into the coal mine explosion-proof motor and factory explosion-proof motor.

    3. Can be divided into flameproof motors, increased safety motors, positive pressure motor, no spark motor and dust explosion-proof motor, explosion-proof principle.

    4. Supporting host can be divided into coal transport aircraft with explosion-proof motor, mine winch with explosion-proof motor, rock loader with explosion-proof motor, coal

    Local fan with explosion-proof motors, valves explosion-proof motors, fans, explosion-proof motor, marine explosion-proof motor, lifting metallurgical explosion-proof motor and hydrogenation unit supporting increased safety brushless excitation synchronous motor.

    In addition, you can press the rated voltage, efficiency and other technical indicators to points, such as high pressure explosion-proof motor, high efficiency explosion-proof motor, the high slip explosion-proof motor and high starting torque explosion-proof motor.

    Code:

    d flameproof e increased safety o oil-filled type q filling sand n i p positive pressure type of intrinsically safe non-sparking

    m Encapsulation NR limit simple positive pressure breathing type NZ s Special

    China will explosive substances into three categories:

The class Ⅰ: mine methane

Class II: explosive gases and vapors

Class III: explosive dust and fibers

Class II explosive gases and vapors, its major experimental safe gap (MESG) or the minimum ignition current can be divided into A, B, C levels: II A, II B, II C (MICR). C-class is most likely to explode.

    A proof mark naming rules:

If you use more than one type of composite type, you must mark the subject (note the main first) explosion-proof type, listed after the other explosion-proof type.

EEx dm II B T4, class II main flameproof and attach Encapsulation, Class B, T4 group.

    Customer requirements EEX dm II B T4, class II main flameproof and additional Encapsulation, Class B, T4.