Range of operation and operation mode of air duct heater

China's explosion-proof electrical industry a few years ago the overall economic growth has slowed in recent years, but the air electric heater of various economic indicators still maintain a rapid growth, economic development and economic benefits have been obtained in recent years is also good. Among them, the mine explosion-proof electrical appliances along with the development of the coal industry has entered a stable and rapid development period. While the rapid development of the industry, there are several major problems: the products circulation is more chaotic, product quality problems of some small enterprises outstanding, dumping phenomenon, disrupt the normal market order, at the same time to the safe production of users buried the hidden trouble, not conducive to enterprise development and industry technology progress explosion-proof electric appliance the industry concentration is too low, too many production enterprises, and most enterprises are small in scale, low tech products of the enterprise management level is not high, the low level of technology, product updates speed.

In addition, poor ventilation environment, also need the motor with forced air cooling function to ensure the normal cooling of the motor, it is worth mentioning here is the Italy CEMP small power explosion-proof electrical advantages in forced air cooling design, the motor has been widely applied in Maoming petrochemical, Guangzhou stone, Yunnan sky, Luoyang petrochemical and other domestic many large electrical machinery enterprises, the domestic brands in other large petrochemical projects are widely used. Such as the volume of motor more stringent requirements and special features of explosion-proof appliances, the current domestic explosion-proof electrical appliance manufacturers and foreign brands there is a big gap, but also must rely on imported brands.

However, due to the complexity of the production and processing of power machinery, there will be special requirements for the technical parameters of the motor in some occasions. This kind of special requirements of explosion-proof electrical appliances at home can not be produced, even in the world only a few manufacturers can produce, must rely on imported brands, because of the outstanding advantages in high power and ultra high voltage explosion-proof electrical appliances, finally won the favor of the owner. In the process of power machinery production, sometimes due to the limitations of the space environment, the motor should not only have high explosion-proof grade and protection level, but also must have compact structure and space saving design requirements. Explosion proof electrical appliances can be used in petroleum, natural gas, power, machinery and chemical industries. In addition, it is widely used in mining, textile, metallurgy, city gas, transportation, grain and oil processing, papermaking, pharmaceutical and other industries, so do a good job of air electric heater is a part of the market, the domestic industrial brand building an upgrade.

Technological innovation is an important indicator to measure whether an enterprise is advanced, whether it has market competitiveness and whether it can keep ahead of its competitors. With the rapid development of China's mining electrical appliance market, the related core production technology application and research and development will become the focus of attention of enterprises in the industry. It is very important for enterprises to upgrade their technical specifications and improve their market competitiveness by understanding the R & D trends, process equipment, technology applications and trends of the core technology for the production of electrical appliances at home and abroad.

The air duct heater is mainly used to heat the required air flow from the initial temperature to the required air temperature, up to 850 degrees centigrade. Has been widely used in aerospace, weapons industry, chemical industry and institutions of higher learning and many other research and production laboratory. It is especially suitable for automatic temperature control and large flow high temperature combined system and accessories test. The scope of use of electric air heater width: can heating of any gas, hot air generated by dry water, not conductive, no burning, no explosion, no chemical corrosion, no pollution, safety, fast heating heating space (controlled).

Technical characteristics of air duct electric heater

1. The air can be heated to a very high temperature, up to 450 degrees Celsius, and the shell temperature is only about 50 degrees celsius.

2, high efficiency: more than 0.9.

3, temperature and cooling rate of block can reach 10 /S, fast and stable adjustment. The temperature of the air can not be controlled by the advance and hysteresis of the controlled air temperature, so the temperature control drift is not fixed, and is suitable for automatic control.

4, because of its good mechanical properties: heating body for special alloy materials, so in the high pressure air flow under the impact of it than any body of the mechanical properties and strength are good, it takes a long time for the continuous of the air heating system and accessories test has more advantages.

5, not in violation of the use of regulations, durable, life of up to decades.

6, clean air, small size, benefit the people.

The air duct electric heater is beautiful in design, simple in operation, and the board supports the electric heating pipe to reduce the vibration of the electric heating pipe, and the temperature control device is arranged in the air duct, the electric heater and the junction box. On the other hand except in control with over temperature protection, between the fan and the heater is still transport device, to ensure that the electric heater must start after the fan is started in a heater plus differential pressure device, to prevent machine fault, gas pressure passage heater generally should not exceed 0.3kg/cm2, if you need more than pressure. Please use the circulation type electric heater; low temperature heater type gas heating temperature is less than 160 DEG C; medium temperature is less than 260 DEG C; high temperature does not exceed 500 degrees. The air duct type electric heater is used for industrial air duct, air conditioning duct and various industries. The air is heated by air to increase the temperature of the output air, and the air inlet is generally inserted in the transverse opening of the air duct. According to the operating temperature of the air duct, it can be divided into low temperature, medium temperature and high temperature. According to the wind speed in the air duct, the low wind speed, medium wind speed and high wind speed can be divided.