【Daily Question】0912 Design of Tower Containers

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This post was last edited by HSLJHZ on 2015-9-13 at 13:04. In order to increase the popularity of the heat exchange section, a \"Question of the Day\" activity has been introduced in the tower equipment section; this helps to foster active technical exchanges while also providing members with certain financial rewards. This is my first attempt at posting; please offer me lots of guidance. [Question of the Day] (Multiple-choice question) Which of the following statements about steel tower-type containers are correct? A. The minimum thickness of the tower body made of high-alloy steel shall not be less than 3 mm. B. The minimum thickness of the skirt cylinder, including the corrosion allowance, shall not be less than 6 mm. C. When a conical skirt is used, the half-cone apex angle should not exceed 15°. D. When the outlet pipe is connected via flanges inside the skirt, the inner diameter of the reinforcement tube passage should be greater than the outer diameter of the flange. Correct answers: BCD. The reason why A is incorrect is as follows: A. The minimum thickness of the tower body does not include the corrosion allowance; for carbon steel and low-alloy steel, it is 2/1000 of the inner diameter, with a minimum value of 3 mm ； For high-alloy steel, it shall not be less than 2 mm. Post your answer as a reply; participating in the quiz earns you +2 wealth points (automatic addition of wealth points is enabled; no additional points or comments will be given if your answer is incorrect). Answering all questions correctly grants an additional +3 to +8 wealth points. Those who provide thorough analysis and explanations for the questions or their answers, or who include detailed calculation processes, will receive extra wealth point rewards. If your answer is correct and your analysis and explanation are accurate, it will be marked as the best reply (or the best assistance). Feel free to answer the questions. Note: We will close this post after 24 hours to reveal the answers and explanations, as well as the best response (the best help provided). Attraction Bonus: If you post a topic in this section within two days to provide a detailed explanation of the knowledge points covered in this question, please reply to this post to inform us, and we will have a moderator award you +Attraction. It is not allowed to simply copy and paste; original content is preferred, with at least some organization by the user along with personal insights and opinions. After registration, we will rank participants based on the content of their posts: the last-place participant will receive +1 charm, the second-to-last +2 charm, and so on, with the highest score earning +5 charm.