How to determine the size of a steam drum
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For the drum heat exchanger in a synthesis reactor, given the temperature, heat load, and circulation water volume, how can the geometric dimensions of the drum be determined? Are there any reference materials I can look at? This post was last edited by liming730 on 2009-2-11 15:36.]
Is it also related to the pressure at which steam is generated? If there are any experts who know the answer, please send me some information. My email address is lb7209@163.com
Once the temperature of the water vapor is known, the vapor grade should be determined. Looking forward to experts!
First, determine the size of the liquid phase space; if it is a heat exchanger, the size is determined based on the heat exchange area, while if the heat exchanger is external, the size is determined based on the liquid phase residence time. After that, determine the size of the gas phase space, which can be taken to be about half of the size of the liquid phase space.
The steam volume in the drum is given by V = steam generation rate * specific volume of steam / volume load of the steam space. For the volume load of the steam space, values ranging from P10.8 to 15.2 MPa can be used; 220 can be adopted, or even 160. The volume of the drum is then 2V. The height of the steam space should be no less than 500 mm; generally, 0.6 m is sufficient to prevent steam from carrying water droplets. The time from low water level alarm to complete drying of water vapor should not be less than 6 minutes. Attention should also be paid to the spacing between the openings of the downcomer and the upcomer.