The DYK air electric heater is mainly used to heat air, raising it to the required temperature for direct use or subsequent utilization. Therefore, it has a very wide range of applications. The heating temperature of this instrument can generally reach up to 850°C. Moreover, it can heat not only air but also any other gas. This heater has the advantages of being non-conductive, non-flammable, and chemically non-corrosive, making it safe and reliable to use.
Application Fields:
This instrument is mainly used to heat the required airflow from the initial temperature to the desired air temperature, up to a maximum of 850°C. It has been widely applied in aerospace, ordnance industry, chemical industry, and many scientific research and production laboratories in universities. It is particularly suitable for automatic temperature control and high-flow high-temperature combined systems and accessory tests. The instrument has a wide range of applications: it can heat any gas, producing hot air that is dry, moisture-free, non-conductive, non-flammable, non-explosive, chemically non-corrosive, pollution-free, safe, and reliable, with rapid heating of the heated space (controllable).
Technical Features:
1. It can heat air to very high temperatures, up to 450°C, while the shell temperature is only about 50°C.
2. High efficiency: up to 0.9 or more.
3. Fast heating and cooling rates, up to 10°C/s, with quick and stable regulation. There is no leading or lagging of the controlled air temperature, preventing temperature control drift, making it very suitable for automatic control.
4. Good mechanical performance: because the heating element is made of special alloy materials, it has better mechanical performance and strength under high-pressure airflow impact than any other heating element, which is particularly advantageous for systems and accessory tests that require continuous air heating over long periods.
5. Durable and long-lasting, with a service life of several decades when used in accordance with operating procedures.
6. Clean air and small size.
7. Multiple types of DYK air electric heaters can be designed according to user needs. 1. Through continuous circulation of the working fluid, the flue gas is cooled, and the air heating effect is good, without consuming steam. The power consumption of the instrument's circulation pump is only 10kW, which is very small compared to the heat recovered from the flue gas.
2. The air heater system operates at low pressure, with the medium being hot water at low temperature.
3. Increases wall temperature, reduces flue gas corrosion, and prevents ash accumulation. No soot blower is needed.
4. Compared with the heat pipe type air heater, only a circulation pump is added. Although it consumes a certain amount of electricity, it is easy to operate, safe, and reliable.
5. The air heater is easy to arrange and install, without the need to modify the flue or air duct. Due to the thermal dynamic requirements of heat pipes, the air heater is generally required to be located higher than the flue duct. The forced circulation system can be arranged according to site conditions, and the differences in pipeline resistance caused by different positions can be resolved by selecting a reasonable circulation pump head for the air electric heater.
6. The circulation pump power is 10kW, equivalent to 4kg/h of standard coal, and its heat is equivalent to the enthalpy of 30kg of steam.
7. The exhaust gas temperature of small and medium-sized power plant boilers in China is generally high. To prevent preheater corrosion, air heating is required. After adopting the forced circulation DYK air electric heater, the above contradictions can be better resolved, steam is saved, and the economic benefits are significant.
