Daily Question » [Static Equipment – AC Version... Question 69] March 10, 2019 – Revised multiple-choice questions... Everything is going well

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bg4.png【Daily Question】 【AC Version for Static Equipment...Question 69】 March 10, 2019 – Revised multiple-choice questions...Everything is going well...........................................................................The final voting stage for the 2018 “Top 10 Outstanding Members of Haichuan” has ended – hope you’ll be nominated for this year’s list! Wishes to my friends in Haichuan: happiness every year, a harmonious family life, good fortune and success, smooth circumstances and good health, and prosperity throughout life! ........................................................................... Answers (multiple choice, multiple choice, multiple choice) please fill in in order. Reward rules: 1 wealth for participation, 3 wealth for each correct answer, up to a maximum of 10 wealth. ...........................................................................1. When aluminum and aluminum alloys are used for the pressure-bearing components of pressure vessels, their design pressure shall not exceed 16 MPa. ( )A、Correct ； B. Incorrect ； ---------------------2. The product welding test specimens shall be taken from qualified raw materials, and shall have the same standards, same grade, same thickness, and same heat treatment condition as the materials used for the containers. （）A、Correct ； B. Incorrect ； ---------------------3. In accordance with GB150, overpressure relief devices are not suitable for pressure vessels where a sudden increase in pressure may occur during operation, resulting in a reaction speed sufficient to trigger detonation. ( ) A. Correct B. Incorrect --------------------- Answers: 1. A 2. A 3. A 1. Comments: See 2.2.5.2 in TGS21-2016. 2. Comments: Basic knowledge of pressure vessel manufacturing. GB150.4, 9.1.2.2. 3. Comments: Refer to Appendix B1.3 of GB150.1. The safety relief devices specified in GB150 are not capable of providing immediate release when a detonation occurs, thereby ensuring the safety of the container; this represents the most fundamental concept of overpressure relief devices. Many designers are not very familiar with Appendix B. Safety relief devices are an important part of pressure vessels, and as designers of such vessels, it is essential to have a thorough understanding of their concepts and calculation methods. It should not be sufficient to simply specify the safety valve model based on the process conditions; it is the responsibility of the pressure vessel designers to select the appropriate safety relief devices for installation on the equipment