【Daily Question 2019】Hydrogen production and hydrogenation section – Question No. 039
Thread Content
【Daily Question 2019】Hydrogen production and hydrogenation section – Question No. 039: For pressure pipes in hydrogenation units that operate at high temperatures, a rapid drop in temperature can cause significant contraction stresses in the pipe walls. In severe cases, this can lead to cracks, deformation of the pipes, loosening of components, and leaks at the connection points; therefore, it is necessary to control the rate of temperature reduction. Judgment Reference answer: Correct. (Unless otherwise specified, all questions and answers are based on hydrogenation units.) ) Correct: 3 wealth, Incorrect: 1 wealth ； Mass posting of posts – rated based on the lowest score ； Replies that are unrelated to the answer are considered spam and will be deleted immediately. For management purposes, if you need to view content from a few days ago, please go to https://bbs.hcbbs.com/home.php?mod=space&uid=3862647&do=thread&view=me&from=space through the summary post below
Correct; rapid cooling and pressure reduction can easily cause thermal expansion and contraction due to sudden changes in temperature and pressure affecting the material. Moreover, for hydrogenation processes, a dehydrogenation step needs to be considered
For pressure pipes in hydrogenation units that operate at high temperatures, a rapid cooling can cause significant contraction stresses in the pipe walls; in severe cases, this can lead to cracks, deformation, loosening of components, and leaks at the connection points. Therefore, it is necessary to control the rate of cooling. Correct