【Q&A Question 047】2018.02.16
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【Q&A Question 047】February 16, 2018: What are the criteria for completing the heating-up process of the waste heat boiler used for hydrogen production? After boiling the furnace, the following conditions should be met: 1) There are no rust spots, oil residues, or welding slag inside the boiler ； 2) Gently wiping the inner wall of the boiler with cotton cloth can reveal its natural metal color. (Unless otherwise specified, all questions and answers are based on hydrogenation units.) ) Due to the limitations on the number of posts in the “One Question per Day” section, “One Image per Day” has been moved to the registered devices section; you can access it through the directory I posted. For management purposes, if you need to access content from a few days ago, please go to the summary post below to enter the “My Registration Season” event – (Note: This event is currently underway in the Chemical Engineering section). https://bbs.hcbbs.com/forum.php?mod=viewthread&tid=18978 For the daily questions section related to chemical engineering technology training in 2018: https://bbs.hcbbs.com/forum.php?mod=viewthread&tid=1888971 For the daily image section related to registration equipment in 2018: https://bbs.hcbbs.com/forum.php?mod=viewthread&tid=1888970 For the Q&A section related to hydrogen production and hydrogenation technologies in 2018: https://bbs.hcbbs.com/forum.php?mod=viewthread&tid=1888968 For the daily questions section related to LNG technology in 2018: https://bbs.hcbbs.com/forum.php?mod=viewthread&tid=1888973 For the Q&A section from 2017 (updates have started): https://bbs.hcbbs.com/thread-1657793-1-1.html For the daily questions section from 2017 (updates have started): https://bbs.hcbbs.com/thread-1657794-1-1.html For the daily image section from 2017: https://bbs.hcbbs.com/forum.php?mod=viewthread&tid=1875160 For the list of daily questions related to LNG in 2017: https://bbs.hcbbs.com/forum.php?mod=viewthread&tid=1804162 For the Q&A section from 2016 (all updates completed): https://bbs.hcbbs.com/thread-1597792-1-1.html
What are the criteria for completing the boiler startup in a hydrogen production waste heat boiler? When the boiler water alkalinity is within the specified range (generally ≤18 mgN/L)
After boiling the furnace, the following conditions should be met: 1) There are no rust spots, oil residues, or welding slag inside the boiler； 2) The inner wall of the boiler can reveal its natural metal color when gently wiped with cotton cloth.
After heating the furnace, the following conditions should be met: 1. There are no rust spots, oil stains, or weld slag inside the boiler. 2. Gently wiping the inner wall of the boiler with cotton cloth can reveal the true color of the metal
After boiling the furnace, the following conditions should be met: 1. There should be no rust spots, oil stains, or welding slag inside the boiler； 2. Gently wiping the inner wall of the boiler with cotton cloth can reveal its natural metal color.
After boiling the furnace, the following conditions should be met: 1) There are no rust spots, oil residues, or welding slag inside the boiler； 2) Gently wiping the inner wall of the boiler with cotton cloth can reveal its natural metal color.
1. There are no rust spots, oil stains, or welding slag inside the boiler. 2. Gently wiping the inner wall of the boiler with cotton cloth can reveal the true color of the metal
After heating the furnace, the following conditions should be met: 1. There are no rust spots, oil stains, or weld slag inside the boiler. 2. Gently wiping the inner wall of the boiler with cotton cloth can reveal the true color of the metal.
After boiling the furnace, the following conditions should be met: 1. There should be no rust spots, oil stains, or welding slag inside the boiler； 2. Gently wiping the inner wall of the boiler with cotton cloth can reveal its natural metal color.
After boiling the furnace, the following conditions should be met: 1) There are no rust spots, oil residues, or welding slag inside the boiler； 2) Gently wiping the inner wall of the boiler with cotton cloth can reveal its natural metal color.
There are no rust spots, weld slag, or oil stains inside the boiler; after wiping it with a cloth, the true color of the metal can be seen