Hehe! This post has been closed! Hehe, just posting a ‘No Entry’ notice!

If you have any questions, you can communicate with the moderator via private message; the purpose of these management measures is to create a better environment for communication among everyone, and mutual understanding is essential

After all, a forum is a platform for mutual assistance and understanding. I hope that everyone will show more understanding and support, and that friends as well as forum administrators can resolve any misunderstandings, so that there can be more support and progress in the future

1. As professional engineering and technical personnel, whether we are working or speaking as such, we should avoid being too extreme in our views! We come to the HaiChuan Chemical Forum in order to acquire more professional knowledge and help others solve problems at work. By emphasizing the importance of putting theory into practice, I mean that one should spend 1 hour understanding that, as a qualified engineering technician, it is not enough to learn theoretical knowledge in school; it is also necessary to apply that knowledge in practice. When faced with problems at work, one should read more, study relevant standards, discuss with colleagues, and share meaningful issues with other forum members for discussion! 2、This post doesn’t involve any level of abuse of power or misbehavior, right! 3. Everyone should use their professional knowledge to solve the problems encountered at work and within HaiChuan, so as to continuously expand our knowledge and make HaiChuan stronger. OK! Send me a message if you have any questions!

I will answer your question: The pipes are buried 1 meter underground, which provides insulation. Whether it is necessary to insulate crude oil pipelines depends on an economic analysis. If the cost of insulation and the amount of heat loss are high (there is generally a specified payback period, around 7 years; this can vary), insulation is not applied if the costs cannot be recouped within that time. Based on my calculations over more than 20 years, insulation is not cost-effective for crude oil pipelines with a diameter greater than 350 mm; its use is not recommended. For pipelines with a diameter of around 300 mm, it’s worth considering insulation, while for those with a diameter of around 200 mm, insulation is indeed cost-effective.

This post was last edited by oil transfer arm on 2010-6-4 08:20. At Hai Chuan, both learning and participation are emphasized; if you feel anything is not appropriate, feel free to communicate more. There’s no need to get angry over such minor matters, as that would go against our principle of \"embracing all things.\" “The word “reveal” reminds me of the phrases in old textbooks like “revealing the ×× nature of ×× society”, haha.

I changed the title first! To clarify: I encountered problems at work that day, and even after asking several people, I couldn’t figure it out! To be honest, I don’t know where I can find any materials to refer to! As mentioned on the 5th floor, I have 20 years of experience – I’ve only been working for two years! Compare them! 1: Before posting this thread, I sent a letter to moderator France of W, right, moderator France? Did you not reply to me? 2: If the question moderator thinks it’s simple and moves it down, how can I, as a beginner, improve? Please put yourself in their shoes – what does a moderator even mean? Those are all elites from their respective regions! There are too many simple questions for elites! 3: When the post was scheduled to be hidden, it wasn’t specified that it would only be hidden for 1 hour. I just hope that in the future, when dealing with similar situations, the moderators will think more about others! Finally, I must say my problem still hasn’t been solved! Once the problem is solved, I’ll delete the post! Excuse me, HCF: by \"insulation\" I mean whether insulation is necessary. Since crude oil has high viscosity, would the lack of insulation affect fluid flow? I’m worried that it might solidify and cause blockages! (This factory is located near Thailand, Vietnam, and Malaysia)

Reply to 4# wjqtide, moderator, do you know? Your reply left me both amused and puzzled! First of all, I don’t think I’m extreme ； “\"Solving problems at work for others\" – in that case, moderators should not create difficulties for those who want to help others (by moving posts down) ； Secondly, posts are dropped after one hour – why isn’t this clearly stated during the operation? Third, it helps you understand that to be a competent engineering technician, one must not only acquire theoretical knowledge in school but also apply it in practice. When facing problems at work, one should read more, study relevant standards, discuss with colleagues, and share meaningful issues with friends on forums for further discussion! ” ； (One should use professional knowledge to solve the problems encountered at work and with Haichuan Zhong.) I really don’t understand what these two sentences mean Is it related to my post? The moderators are trying to do what’s best for me, but it still feels strange, which is why it’s both amusing and frustrating! Finally, in response to the second point mentioned by the moderator: I am puzzled by your action of \"going downward\". It might be because you’re too self-centered and don’t think much before making decisions or taking action! (Note: This refers only to this action on the forum, and has nothing to do with the moderator’s real life or work.) If moderator w believes that this post has harmed you or wronged you, please forgive us. Because we should put ourselves in others’ shoes, right!