Xi'an Simo as a Explosion Proof Motor supplier. Our motor products are widely used in many industries, including high-tech fields such as electric power, coal mining, petroleum, metallurgy, railways, transportation, chemical industry, agriculture, water conservancy and aerospace. At the same time, we are also designated as a supplier of auxiliary motors by the Ministry of Railways and General Electric. We always adhere to the market-oriented and customer-oriented business philosophy. Our products not only cover sales and service networks across the country, but are also exported to more than 40 countries and regions in North America, Europe, Africa, the Middle East and Southeast Asia.
What is explosion proof motor?
This series of Flame-proof motor accords with GB/T 755 Rotation Electric Motor: Rating And Performance, GB/T 3836.1-2021 Explosive Environment Part 1: General Requirements, GB/T 3836.2-2021 Explosive Environment Part 2: Equipments Protected by Explosion Proof Housing “d” and MT451-2011 Coal Mine Explosion Proof Low Voltage Three Phase Asynchronous Motor Safety Performance General Technical Regulations. The Flame-proof marks are: Ex db Ⅰ Mb、Ex db ⅡA T4 Gb、Ex db ⅡB T4 Gb、Ex db ⅡC T4 Gb.
Ex db Ⅰ Mb is suitable for electric equipments used in gas environment and underground areas of coal mine with Mb equipment protection grade.
Ex db ⅡB T4 Gb is suitable for factory used equipments of category II class B, temperature class: T1, T2, T3, T4 explosive gas mixed places with Gb equipment protection grade, which can replace equipments of category II class A.
Ex db ⅡC T4 Gb is suitable for factory used equipments of category II class C temperature class: T1, T2, T3, T4 explosive gas mixed places, with Gb equipment protection degree.
The housing of this series of motor adopts high strengthened gray casting steel and high quality anti-corrosion painting progress, so that it can bear the explosive mixture which getting into the housing through any contacting face or structure clearance from exploding inside without any housing damage. Also it will avoid the ignition of explosive gas environment which caused by one or multiple kinds of gas or steam so as to ensure the safety of environment. This series of motor has advantages such as excellent Flame-proof performance, high reliability, compact structure, high efficiency, energy-saving, safe, environment protection, low vibration, low noise, easy to install and maintain, etc.
This series of motor can be applied to drive different kinds of general machines, such as ideal transportation machineries of compressor, pump, crusher, windlass, centrifuge, cutting machine and so on.
What are the advantages of simo explosion proof motor
Safe
The motor uses a housing made of high-strength materials that can withstand the internal explosion pressure and prevent sparks, heat or arc from spreading to the external environment. Explosion-proof sealing materials and sealing structure are used in key parts to effectively prevent gas or dust from entering the motor.
Environmental-friendly
The motor adopts optimized rotor structure to reduce energy consumption and carbon emissions. Through intelligent control technology such as frequency converter to achieve energy saving operation and reduce energy waste.
High Efficiency
The Explosion Proof Motor uses a forced air cooling, water cooling or oil cooling system to ensure that the motor maintains a suitable temperature when working efficiently. Prevent overheating and improve energy efficiency through intelligent temperature control system.
Low Vibration
The motor adopts high-quality bearings to reduce friction and vibration. Bearing lubrication system design is reasonable to ensure long-term smooth operation.
Low Noise
The motor uses a low noise fan and ventilation structure to reduce air flow noise. The housing is designed with acoustic characteristics in mind to increase sound insulation.
Easy to Maintain
Explosion Proof Motors use wear - and corrosion-resistant materials to reduce failure rates and extend maintenance cycles. Reduce maintenance frequency with high quality seals and lubrication systems.
Types of explosion proof motor
YBX3 Series High Efficiency Explosion Proof Motor
YBX3-series high efficiency Flame-proof three phase asynchronous motor has advantages such as excellent Flame-proof property, high efficiency, energy saving, large temperature rise margin, long operation life, good property, low vibration, advanced Flame-proof structure, good starting performance, good-looking appearance, high reliability and no sparking while operating. This series of motor is mainly applied to drive equipments of coal mine, petroleum and gas, petrochemical industry, such as water pump, blower, compressor, conveyor and other machines.
YBK3 Series Coal Mine Explosion Proof Motor
This series coal mine underground Flame-proof three phase asynchronous motor is newly developed by our company based on YBX3-series high efficiency Flame-proof three-phase asynchronous motor which combines advanced electromagnetic structure, processing technology and materials. This series of motor is accord with Chinese Flame-proof standard GB/T 3836.1, GB/T 3836.2 and MT 451-2011. The coolant mode is IC411, the Flame-proof mark is Ex db Ⅰ Mb. The motor performance meets with the requirements of China Flame-proof motor industry standard JB/T9593.1-2015 Specification of Fameproof Three-Phase Asynchronous Motor for mines Part 1: YBK3-series Flame-proof Three-Phase Asynchronous Motors for Coal Mines (Frame Size. H80 to 355). The efficiency is accord with grade 3 energy efficiency standard in GB18163-2020, which is equivalent to IE3 in IEC60034-30 Single Speed Three Phase Squirrel Cage Induction Motor Efficiency Grade.
YBX4 Series Explosion Proof Motor
YBX4-series high efficiency Flame-proof three-phase asynchronous motor has advantages such as excellent Flame-proof property, high efficiency, energy saving, large temperature rise margin, long operation life, good property, low vibration, advanced Flame-proof structure, good starting performance, good-looking appearance, high reliability and no sparking while operating. This series of motor is mainly applied to drive equipments of coal mine, petroleum and gas, petrochemical industry, such as water pump, blower, compressor, conveyor and other machines.
YBBP Series Explosion-proof Variable Frequency Motor
This series of motor is accord with Chinese Flame-proof standard GB/T 3836.1 and GB/T 3836.2. The motor property meets with the requirements of industry standard JB/T11201.1-2011 Variable Frequency Flame-proof Three Phase Electric Asynchronous Motor Technical Condition: Part 1: YBBP Series Flame-proof Three Phase Electric Asynchronous Motor (Frame Size. H80~355). Or JB-T 11201.2-2015 Variable Frequency Flame-proof Three Phase Electric Asynchronous Motor Technical Condition: Part 2: YBBP Series Flame-proof (Ex d ⅡC T1～T4 ) Variable Frequency Three Phase Electric Asynchronous Motor (Frame Size. H80~355). The coolant mode is IC416, the Flame-proof mark is Ex db Ⅰ Mb 、Ex db ⅡB T4 Gb和 Ex db ⅡC T4 Gb, which can replace Ex db ⅡA T1 Gb 、Ex db ⅡA T2 Gb、Ex db ⅡA T3 Gb、Ex db ⅡA T4 Gb、Ex db ⅡB T1 Gb、Ex db ⅡB T2 Gb、Ex db ⅡB T3 Gb、Ex db ⅡC T1 Gb、Ex db ⅡC T2 Gb、Ex db ⅡC T3 Gb.
YBF3 Series Explosion Proof Motor For Fan
This series of motor is developed by our company independently, which is totally closed, self cooling, squirrel cage flame-proof three phase asynchronous motors. The coolant mode is IC411, Flame-proof mark is Ex db Ⅰ Mb, This series of motor is accord with Flame-proof standard GB/T 3836.1 and GB/T 3836.2. The motor efficiency is accord with the grade 3 efficiency standard in GB 18613-2020, and it is equivalent to grade IE3 in international standard IEC60034-30 Single Speed Three Phase Squirrel Cage Induction Motor Efficiency Grades. The contour dimension is accord with the industrial standard.
YB2, YBX2 (H355~H560) Series 6kV/10kV High Voltage Explosion Proof Motor
YB2 and YBX2 series high voltage Flame-proof three-phase asynchronous motor (Frame Size. H355~560) is accord with Chinese Flame-proof standard GB/T 3836.1 and GB/T 3836.2. The coolant mode is IC411, and the Flame-proof mark is Ex db ⅡB T4 Gb, which can replace Ex db ⅡA T1 Gb 、Ex db ⅡA T2 Gb、Ex db ⅡA T3 Gb、Ex db ⅡA T4 Gb、Ex db ⅡB T1 Gb、Ex db ⅡB T2 Gb、Ex db ⅡB T3 Gb.
This series of motor has advantages, such as excellent Flame-proof property, high reliability, compact structure, safe, environment protection, low vibration, low noise, easy to install and maintain. And it can replace YB560~710 series (IC511 tube cooling structure) high voltage Flame-proof three phase asynchronous motor.
This series of motor can be widely applied to drive different kinds of general machines, such as compressor, water pump, crusher, windlass, centrifuge, cutting machine, conveyors and so on. YB2, YBX2 series high voltage Flame-proof three-phase asynchronous motor can always provide excellent driving power and meet well the customer’s need no matter in indoor, outdoor, plateau, damp-heat type or other working conditions.
Common materials of explosion proof motor
Cooper
Copper can be drawn into flat shapes to form rectangular winding wires. Rectangular winding wires are integral components in compact and high-performance applications like electric vehicle motors, EV power trains etc.
Steel
Silicon steel offers good shielding properties against electromagnetic interference. Therefore, it is useful in equipment where the radiation needs minimizing, such as medical instrumentation or transport systems like railroads.
Cast Iron
Cast iron is a good choice for an engine block. It is easily sand cast, easy to machine, capable to resist piston wear quite well, and inexpensive as a material.
Silicon steel sheet
The silicon steels are produced in two forms, highly textured grain-oriented alloys and alloys in which the grains are not oriented. Grain orientation is carried out to align the magnetic easy axis.
Application of simo explosion proof motor
Crushers: Explosion Proof Motor for crusher is mainly used in the environment with flammable and explosive materials, such as coal mine, petrochemical, natural gas and other places. The Explosion Proof Motor can effectively prevent the explosion accident caused by the spark or high temperature generated by the motor operation.
Water pumps: An Explosion Proof Motor for water pumps is a motor specifically designed to prevent the risk of explosion or fire in hazardous environments. These motors are commonly used in industrial environments containing flammable gases, vapors or dust, such as petrochemical plants, mines, pharmaceutical plants and grain processing plants. Explosion Proof Motors ensure the safety of equipment and personnel by limiting sparks, heat or arc leakage inside the motor through special structures and materials.
Windlass: Explosion Proof Motor for winch is a motor specially designed to prevent explosion or fire in hazardous environments. This kind of motor is widely used in petroleum, chemical industry, mines, coal mines, offshore platforms and other flammable and explosive occasions to ensure the safety of personnel and equipment. Explosion Proof Motors, through their special design and manufacturing process, are able to operate safely in environments containing flammable gases, steam or dust.
Compressors: Explosion Proof Motors for compressors are motors specifically designed for use in potentially explosive environments, ensuring safe and efficient operation in compressor applications. Compressors are widely used in chemical, petroleum, natural gas, pharmaceutical and other industries, which often involve flammable and explosive gases or dust. Therefore, the use of Explosion Proof Motors is essential to ensure safety.
Centrifuge: Explosion Proof Motors for centrifuges are specially designed for centrifuge equipment used in flammable and explosive environments. Such motors are widely used in pharmaceutical, chemical, petroleum, food processing and other industries, because these industries often involve flammable and explosive gases, vapors or dust. The Explosion Proof Motor is designed to prevent any spark, heat or arc generated inside the motor from posing a threat to the surrounding environment, ensuring the safe operation of the centrifuge in dangerous environments.
Mechanical transmission equipments: An Explosion Proof Motor for transmission machinery is a motor specially designed for safe operation in flammable and explosive environments. Such motors are often used in applications requiring high reliability and safety, such as chemical plants, petroleum refining, natural gas exploitation, pharmaceutical plants, mines and other industrial fields. There may be flammable gases, steam, dust, etc., in these environments, if appropriate explosion-proof equipment is not used, it may lead to serious accidents such as explosions or fires. Through special structural design and material selection, the Explosion Proof Motor ensures that it can operate safely and reliably under harsh conditions.
How to maintain explosion proof motor
Operation Environment
Elevation of motor installation point shall be within 1000m, otherwise, please consult the manufacturer whether to reduce power or to implement insulation class increasing treatment. Ambient air max temperature shall be within 40 ℃ and mini temperature is minus 15℃.
Motor Installation
Motor must be mounted in flameproof marks allowed safety environment. It shall guarantee firm foundation when mounting motor, so as to the motor has minimum vibration during running process; the foundation shall adopt firm concrete foundation and have sufficient depth; depending on installation dimension on the outside drawing, position of the foundation bolt is determined; generally, burying depth of the foundation bolt is 20-30 times as much as diameter of the foundation bolt. The foundation bolt hole shall have proper margin, thus facilitating regulation.
Motor Operation
To protect motor flameproof surface from chipping, scratching or rust during process of motor installation, dismantling and maintenance in case of failure of flameproof performance!
Motor Maintenance
When the motor is stopped for more than one month, environment of the motor is relatively wet and often has relatively high temperature change; it shall electrify damp-proof heating device of the motor frequently or continuously, an inspect at regular time so that the damp-proof heater is under a normal working state.
Components of explosion proof motor
1. Grease
The series of motors, for general purpose, shall adopt 3# general lithium-base lubricating grease as bearing grease.
2. Sliding Bearing
Sliding bearings are lightweight and have a long operating life while introducing minimal vibrations or noise. Sliding bearings made of resin material for slippery surfaces or shafts, that are suited to a wide range of fields and machine components with their lighter weight, lower cost and versatility compared to metal.
3. Coil
The working principle of motor coil is based on the interaction of electromagnetic induction and electromagnetic force A magnetic field is generated when a current passes through the coil.
4. Insulation Material
Insulation materials used in motors include many types, which can be mainly divided into the following categories: Film and composite materials for electrical purposes. The choice of these materials depends on the operation and performance requirements of the motor to ensure the safe operation and stability of the motor.
5. Silicon Steel Sheet
The use of silicon steel sheet can make this phenomenon obvious, and the magnetic properties of iron core are stable In addition, these characteristics of silicon steel sheet enable the motor to work more stably and efficiently during operation, thus prolonging the service life and maintenance cost of the motor Therefore, silicon steel sheet is an indispensable and important material in motor manufacturing.
6. Explosion-proof components
Parts constituting flameproof casing of motor include: frame, end cover, bearing inner cover, terminal box base, terminal box cover, insulator, junction hopper as well as ferrules and seal rings of various line outlets and inlets.
Process of explosion proof motor
| Winding | Shaft | Frame processing | Motor painting |
Stator and Rotor Assembly
The stator and rotor are precisely aligned to ensure even concentricity and clearance. Use special tools for assembly to avoid damage to parts.
Bearing Installation
Bearings need to be cleaned and lubricated before installation to ensure good running condition. Professional installation tools are used to ensure that bearings are installed in place and avoid premature bearing damage.
Motor Housing Assembly
The shell components need to undergo strict dimensional checks to ensure the tightness of the assembly. Use explosion-proof bolts and sealing gaskets to fix, to ensure the overall sealing performance of the motor.
Junction Box Installation
The electrical connection in the junction box must be explosion-proof to ensure the reliability of the connection. Explosion-proof sealing materials are used at the connection between the junction box and the motor body to prevent gas or dust from penetrating.
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