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Water wall metal temperature

2016-03-06View Original

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What is the temperature of the outer metal surface of the water wall in subcritical boilers? How to calculate it? What is the actual measured temperature difference between the inner and outer walls? Thank you!
Reply #22016-03-06
Temperature of the outer metal surface of the boiler water wall
Reply #32016-03-07
What is the temperature of the outer metal surface of the water wall in a 3.5 MPa saturated steam boiler? Thank you!
Reply #42016-03-07
This post was last edited by hzliangke on 2016-3-7 23:05. The temperature of the pipe depends on the temperature of the medium flowing through that section of the pipe, the heat exchange conditions within the pipe, as well as whether there is salt deposition and concentrated heat loads. For those pipes whose medium temperature, hydraulic conditions, and heat load can lead to the highest wall temperature, their temperature conditions should be calculated. When calculating the temperature conditions of the heated tube, the uneven heat absorption along the tube perimeter and the uniform distribution of heat within the tube wall must be taken into account. The increase in tube temperature or the increase in the amplitude of temperature fluctuations caused by accidental damage under normal operating conditions are not taken into account in the calculations. Calculated in accordance with the Standard Method for Hydraulic Calculation of Boiler Units

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