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    Improve the thermal efficiency of W radiant tubes

    時(shí)間:2020-06-13   訪問量:1473
    Improve the thermal efficiency of W radiant tubes

    The W radiation tube has the advantages of large combustion space, large heat transfer area, and high thermal efficiency. The radiant tube is a radiant tube that ensures a controlled atmosphere in the furnace. Easy to control, installation and maintenance temperature, easy to seal. The uniformity of the temperature distribution on the surface of the radiant tube is an important technical indicator to measure the performance of the radiant tube. Affect the heating capacity, heating quality and service life of the radiant tube. The radiant tube burner is the core component of the radiant tube heating device. The structural design of the burner directly determines the temperature distribution on the surface of the radiant tube. The proper burner structure should make the air and gas mixture in the radiant tube reach the appropriate strength. If the mixing intensity of air and gas is too low, the mixing time will be extended, the flame will be extended, and the gas will not burn completely, causing unnecessary waste. Even the burning flame may escape from the exhaust port of the radiant tube, reducing the thermal efficiency of the radiant tube, and the temperature distribution on the surface of the radiant tube is uneven. If the air and gas mix strongly, it will cause unnecessary waste. If the temperature is too high, the mixing time is shortened, the flame is too short, the end of the radiant tube cannot be completely heated, and the temperature distribution on the surface of the radiant tube is uneven.


    In order to improve the heating efficiency of the W radiant tube, the shape of the radiant tube can be designed as a three-dimensional curve or the surface area of the radiant tube can be increased. The research on improving the thermal efficiency and surface temperature uniformity of the radiant tube has gone beyond the scope of the radiant tube and developed to a higher level of super system. The main research direction of improving the service life of the radiant tube is to improve the stress state of the radiant tube, and the main measure is to improve the flexibility of the radiant tube. Through the analysis and summary of the main performance of the radiant tube based on the evolution theory of triz technology, it can be seen that the future development of the radiant tube will mainly follow the direction of the super system. In order to improve the performance of the radiant tube, the performance of each subsystem of the radiant tube should be comprehensively considered, and new subsystems should be continuously introduced. In addition, in order to improve the heating efficiency of the radiant tube, the main consideration should be to increase the surface area of the radiant tube. During the improvement process, the effect of the radiant tube geometry on the heating efficiency of the radiant tube was mainly studied. Therefore, the research and development of radiant tubes in these two directions will play an important role in improving the overall performance of radiant tubes.

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