What is the general material of the casing of ordinary motors and explosion proof motors?

The material of the shell of the explosion-proof motor in the underground coal mine shall be divided into the place of use, and the motor used for the mining face must be made of steel or cast steel, and the available cast iron material for other coal mine sites.

1. Different meanings:

1) Explosion-proof motor is a kind of motor that can be used in flammable and explosive places, and does not produce electric sparks when running.

2) Electric machinery (commonly known as "motor") refers to an electromagnetic device that converts or transmits electrical energy according to the law of electromagnetic induction.

2. Different uses:

1) Explosion-proof motors are mainly used in coal mines, oil and gas, petrochemical and chemical industries. In addition, it is also widely used in textile, metallurgy, city gas, transportation, grain and oil processing, papermaking, medicine and other departments. As the main power equipment, explosion-proof motors are usually used to drive pumps, fans, compressors and other transmission machinery.

2) Ordinary motors cannot be used in flammable and explosive occasions.

3. Different classifications:

1) Explosion-proof motor:

According to the principle of the motor:

It can be divided into explosion-proof asynchronous motors, explosion-proof synchronous motors and explosion-proof DC motors.

According to the place of use:

It can be divided into explosion-proof motors for underground coal mines and explosion-proof motors for factories.

According to the explosion-proof principle:

It can be divided into flameproof motor, increased safety motor, positive pressure motor, non-spark motor and dust explosion-proof motor.

2) Ordinary motor:

According to the type of working power supply: it can be divided into DC motor and AC motor.

According to the structure and working principle, it can be divided into DC motors, asynchronous motors, and synchronous motors.

According to the starting and operation mode, it can be divided into: capacitor starting single-phase asynchronous motor, capacitor running single-phase asynchronous motor, capacitor starting single-phase asynchronous motor and split-phase single-phase asynchronous motor.

According to the application, it can be divided into: drive motor and control motor.

According to the structure of the rotor, it can be divided into: cage induction motor (the old standard is called squirrel cage asynchronous motor) and wound rotor induction motor (the old standard is called wound asynchronous motor).

According to the running speed, it can be divided into: high-speed motor, low-speed motor, constant-speed motor, and speed-regulating motor. Low-speed motors are further divided into gear reducer motors, electromagnetic reducer motors, torque motors and claw pole synchronous motors.

Explosion-proof motors.

Its characteristics are: 1) to meet the requirements of the increased safety explosion-proof motor, take a series of reliable measures to prevent sparks, arcs and dangerous high temperatures, and can safely operate in the first dangerous place in Zone 2.

2) Brushless excitation, set up rotating rectifier disk and static excitation cabinet, the excitation control system is reliable; Accurate positive polarity slip excitation without impact; The excitation system has reliable out-of-step protection and strong ability to complete the step; The circuit design is reasonable, and the discharge resistance does not heat up during work; Wide range of excitation current adjustment.

3) Synchronous machine, AC exciter and rotating rectifier disk coaxial. The rectifier disc is located between the main motor and the exciter, or outside the bearing housing.

4) The enclosure protection level is IP54.

5) Adopt F-class insulation, and the temperature rise is assessed according to B-class.

6) Change the traditional lower water cooling to upper water cooling, that is, the water cooler is placed on the upper part of the motor.

7) Set up an increased safety moisture-proof heater, which is fixed in the cover at the bottom of the motor for heating and moisture-proof when the machine is stopped.

8) Select high-quality raw materials, and leave a large margin in electrical and mechanical calculations, which can meet the temperature requirements of operation reliability and increased safety motor.

9) Set up perfect monitoring measures; The main junction box is provided with an increased safety type self-balancing current transformer for differential protection; Platinum thermal resistance for stator winding embedding work and standby, with a graduation number of PT100; Set up a water leakage monitor to monitor the leakage of the water cooler; The two end mount sliding bearings are respectively equipped with on-site temperature display instruments and remote signal terminals.

3.Positive voltage motor is a type of positive voltage electrical equipment.

Its structural features are:

1) Equipped with a complete ventilation system, there is no structural dead angle inside the motor that may affect the ventilation.

2) The shell and pipes are made of non-combustible materials and have sufficient mechanical strength.

3) Maintain a large enough positive pressure in the shell and main pipeline relative to the outside atmosphere.

4) The motor must have safety protection devices (such as time relays and flow monitors) to ensure sufficient air exchange, and must also have automatic protection or alarm devices for air pressure undervoltage in the shell.

5) The quick door or cover on the shell must have a device interlocked with the power supply. At present, there is no unified positive pressure motor series products in China.

The explosion-proof motor is fully sealed and does not allow any gas to enter the inside of the motor, including the junction box, so as not to cause gas due to electric sparks**.

Ordinary motors do not have this sealing requirement.

To give you an address, the introduction here is very detailed, and it can be used in heavy industry and miner areas, and it is very safe.

What is the difference between an explosion-proof motor and an ordinary motor? Briefly as follows:1Explosion-proof motors are generally used in flammable and explosive occasions. 2.Explosion-proof motor junction box.

The sealing performance is better than that of ordinary motors. 3.Minimum degree of protection for explosion-proof motors.

For the vertical crack IP55, the protection level of the ordinary motor is IP23IP44IP54IP55IP56, which can be distinguished from the external closure. 4.An explosion-proof motor is a type of motor that can be used in flammable and explosive factories and does not produce electrical sparks during operation.

5.Explosion-proof and explosion-proof motors have an explosion-proof structure. When the ** occurs inside the motor, due to the protection of the flameproof structure, the electric spark will not escape from the motor shell, thus avoiding the occurrence of secondary **.

6.Explosion-proof motors are mainly used in coal mines, oil and gas, petrochemical and other industries. In addition, it is also widely used in textile, metallurgy, city gas, transportation, grain and oil processing, papermaking, medicine and other sectors.

7.As the main power equipment, explosion-proof motors are usually used to drive pumps, fans, fiber compressors and other transmission machinery.

1. The application place is different: explosion-proof motors are generally used in flammable and explosive occasions.

2. The sealing effect of the junction box is different: the sealing of the junction box of the explosion-proof motor is better than that of ordinary motors.

3. The protection level is not exactly the same: the minimum protection level of explosion-proof motors is IP55, while ordinary motors have IPIP23, IP44, IP54, IP55, IP56 and so on.

4. The operation safety is not exactly the same: the explosion-proof motor does not produce electric sparks when it runs.

5. The main purpose is not exactly the same: explosion-proof motors are mainly used for driving pumps, fans, compressors and other transmission machinery in flammable and explosive enterprises such as coal mines, oil and gas, petrochemical and chemical industries.

The occasion of use is different.

The main function of ordinary motor is to generate driving torque, as a power source for electrical appliances or various machinery, the generator is represented by the letter G in the circuit, and its main role is to use mechanical energy to convert into electrical energy.

Explosion-proof motors are generally used in flammable and explosive occasions, and do not produce electric sparks during operation.

The tightness is different.

The sealing of the explosion-proof motor junction box is better than that of ordinary motors.

The shape is different. The ordinary motor consists of a three-phase asynchronous motor structure, consisting of a stator, rotor and other accessories.

The minimum protection level of explosion-proof motors is IP55, while ordinary motors have IPIP23, IP44, IP54, IP55, IP56, etc., so they can be distinguished from the appearance.

Hello dear<> It's different. Explosion-proof motors and ordinary motors do not have exactly the same enclosure dimensions because they are designed and used differently.

Explosion-proof electric slag judges usually require special materials and structures to prevent dangerous situations such as ** or fire, so their shells are usually stronger and thicker than ordinary motors. Explosion-proof motors also need to be equipped with special components such as explosion-proof switches, junction boxes, seals, etc., to ensure their safety. In contrast, the housings of ordinary motors are usually relatively thin, and they do not need to be explosion-proof.

However, in order to ensure its normal operation and heat dissipation, the shell of the ordinary motor also needs to have a certain strength and protective performance. Although there may be some differences in the size of the case between explosion-proof motors and ordinary motors, this is not absolute. The specific situation needs to be judged and <> according to different product models and design requirements

Summary. The shell size of pro-explosion-proof motors and ordinary motors is not exactly the same. Explosion-proof motor is a special motor, its main feature is that it has explosion-proof function, which can avoid accidents such as fire or fire to a certain extent.

Therefore, the shell of an explosion-proof motor is usually made of special materials and structures to enhance its explosion-proof ability. In contrast, the housing structure of ordinary motors is relatively simple, and it is usually only made of general materials and processes to meet its basic use requirements. As a result, the enclosure size of explosion-proof motors and ordinary motors may be slightly different, but this also depends on the specific motor model and specifications.

When purchasing a motor, you need to choose the appropriate motor type and specification according to the actual needs, and pay attention to its shell size and installation requirements.

The shell size of pro-explosion-proof motors and ordinary motors is not exactly the same. Explosion-proof motor is a special motor, its main feature is that it has explosion-proof function, which can be poor to a certain extent and avoid accidents such as fire or fire in the motor. Therefore, the shell of the explosion-proof electric Hu Li machine usually adopts special materials and structures to enhance its explosion-proof ability.

In contrast, the housing structure of ordinary motors is relatively simple, and it is usually only made of general materials and processes to meet its basic use requirements. Therefore, the shell size of the explosion-proof motor and the ordinary motor may be slightly different, but it also depends on the specific motor model and specifications. When purchasing a motor, you need to choose the appropriate motor type and specification according to the actual needs, and pay attention to its shell size and installation requirements.

The pro-explosion-proof motor is a special kind of motor, which is able to operate safely in some flammable and explosive places. Compared with ordinary motors, explosion-proof motors have higher safety and reliability, and are widely used in oil, natural gas, chemical, pharmaceutical, military and other fields. The shell of the explosion-proof motor is usually made of special materials and structures, such as cast aluminum alloy, stainless steel, etc., which can provide better mechanical strength and anti-corrosion performance.

In addition, the electrical part of the explosion-proof motor also adopts a special design and process to enhance its explosion-proof performance, and the classification of explosion-proof motors is generally carried out according to the explosion-proof level, explosion-proof type and applicable place. According to the explosion-proof level, it can be divided into EXD, EXE, EXNA, EXNR, etc. According to the explosion-proof type, it can be divided into flameproof type and increased safety type.

Applicable places include oil, natural gas, chemical, divination or pharmaceutical, military and other flammable and explosive places, when using explosion-proof motors, it is necessary to pay attention to safety standards and use requirements to avoid accidents caused by improper operation and use. At the same time, the explosion-proof motor is regularly maintained and overhauled to ensure its normal operation and safe use.

Summary. The explosion-proof motor can encapsulate the motor and control device in an aluminum shell, which has multiple protection functions such as explosion-proof, fireproof and dust-proof, and is suitable for high and low temperature, strong corrosion, high labor cost and harsh environment in flammable and explosive environments.

No, the size of the explosion-proof motor shell is larger than that of the ordinary motor, and the explosion-proof motor can encapsulate the electric Lib machine and the control device in an aluminum shell, which has multiple protection functions such as explosion-proof, fireproof, and dust-proof, and is suitable for high and low temperatures, strong corrosion, high labor costs and harsh environments in flammable and explosive environments.

Can the shell of the explosion-proof motor be replaced with the shell of the ordinary Y-Ito-train motor of the same model?

No, the shell of the explosion-proof motor is different from the shell of the ordinary Y-Ito-line line, and the shell of the explosion-proof motor has steel plate welding, multi-level sealing and other technologies, which can prevent the gas in the ** gas from entering the motor and protect the safety of the motor. Since the explosion-proof motor needs to have an explosion-proof grade, the complexity of design and production is also more complex than that of ordinary Y-Ito-chop delay trains. In addition, the built-in metal isolator of the explosion-proof motor does not need to be carried by the ordinary Y-Ito-train motor, so the design and processing technology of the shell are also affected.

<> difference between explosion-proof motors and ordinary motors lies in different places of application, different sealing effects, different protection levels, and different safety performance. The details are as follows: 1. The applicable places are different.

Explosion-proof motor: used in high-risk places that are easy to burn and easy to burn. Ordinary Motor:

Use in a normal environment. 2. The sealing effect is different. Explosion-proof motors.

The junction box has a wide number of dense and very good seals. Ordinary motor: the junction box is generally sealed.

3. The level of protection is different. Explosion-proof motor: The protection level of this motor is the most compact and low-standard, IP55.

Ordinary motor: This kind of motor protection level has IPIP23, IP44, etc. 4. The safety performance is different.

Explosion-proof motor: does not generate sparks during operation. Ordinary Motor:

Sparks may occur during operation.