Darui Electric recommends for you
DYK air electric heater is mainly used to heat air, raising the air to the required temperature for direct use or subsequent utilization. Therefore, its application range is very wide. The upper limit of heating temperature can generally reach 850°C. It can not only heat air but also any other gas. Moreover, this heater has the advantages of being non-conductive, non-combustible, and free from chemical corrosion, making it safe and reliable to use.
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 circulating pump is only 10kW, which is extremely small compared to the thermal power recovered from the flue gas.
2. The air heater system operates at low pressure, with the medium being hot water at a low temperature.
3. Increases wall temperature, reduces flue gas corrosion, and prevents ash accumulation. No soot blower is required.
4. Compared with the heat pipe type air heater, only a circulating pump is added. Although it consumes a certain amount of electrical energy, 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 and air ducts. Due to the thermal power requirements of the heat pipe, the air duct where the heater is located is generally required to be higher than the flue. The forced circulation system can choose the layout position according to site conditions, and the difference in pipeline resistance caused by different positions is solved by selecting a reasonable circulating pump head of the air electric heater.
6. The power of the circulating pump 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 station boilers in China is generally high. To prevent preheater corrosion and heat the air, the use of forced circulation DYK air electric heater can better solve the above contradictions, save steam, and have obvious economic benefits.
Application fields:
This instrument is mainly used to heat the required air flow from the initial temperature to the required air temperature, up to 850°C. It has been widely used in aerospace, weapon industry, chemical industry, universities, and many other scientific research and production laboratories. It is especially suitable for automatic temperature control and high-flow high-temperature combined systems and accessory tests. The instrument has a wide range of uses: it can heat any gas, producing hot air that is dry, non-conductive, non-combustible, non-explosive, non-corrosive, non-polluting, safe, and reliable, with rapid heating of the heated space (controllable).
Technical features:
1. It can heat air to a very high temperature, 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 fast and stable adjustment. There is no lead or lag in 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 material, under the impact of high-pressure air flow, its mechanical performance and strength are better than any other heating element, which is more advantageous for systems and accessory tests that require continuous air heating for a long time.
5. Durable and long-lasting, with a service life of decades when used in accordance with operating procedures.
6. Clean air, small size.
7. Multiple types of DYK air electric heaters can be designed according to user needs.
Note: The above information and technical parameters are compiled and released by Yangzhou Darui Electric Co., Ltd.
