【Daily Question】【Static Equipment AC Version...Question 126】July 25, 2019 Multiple-choice questions...Fill-in-the-blank questions

Thread Content

bg4.png【Daily Question】【AC Version for Static Equipment...Question 126】 July 25, 2019 Multiple-choice questions...Fill-in-the-blank questions...........................................................................Reward rules: 3 Wealth points for participation, 10 Wealth points for correct answers. No scoring will be given after two days, except during holidays. ...........................................................................a. In accordance with GB150, overpressure relief devices are not applicable to pressure vessels where a sudden increase in pressure may occur during operation, and the reaction speed reaches ( ). b. Among the metal materials used for containers, titanium and its containers should not come into contact with air (), to prevent the metal from catching fire easily. ...........................................................................Comment: The safety relief devices provided by GB150 are unable to release pressure instantly when detonation occurs in the reaction, thus ensuring the safety of the container. It is the most basic concept of an overpressure relief device. 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. Comment: See Chapter 1 of the standard interpretation for JB/T 4745—2000. JB/T4734-2002 \"Welded Aluminum Containers\" and JB/T4745-2002 \"Welded Titanium Containers\" came into effect on March 1, 2003. As designers of pressure vessels, it is important to stay informed about any changes in these standards. Since many organizations are not involved in the design of non-ferrous metals, we have covered only the most basic aspects of these standards, which account for a small portion of the total score; the aim is to remind designers to keep track of developments in the industry. Answer: According to GB150, overpressure relief devices are not suitable for pressure vessels where a sudden increase in pressure may occur during operation, with the reaction speed reaching that of detonation. b Among the metal materials used for containers, titanium and its containers should not be exposed to an open flame in air, to prevent the metal from catching fire easily.