[Methanol Technical Version] Weekly Image - 4

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To increase the popularity of this section, special daily quizzes on equipment, processes, and safety are held, with the motto: \"Knowledge is built through accumulation.\" I hope everyone will participate actively; by learning and making progress, they can also earn wealth. What device is shown in the picture? What is its function and scope of application? A rupture disc device is an open-type pressure relief device, generally consisting of a rupture disc and a holder. A burst disc is a component that ruptures to release pressure at a specified burst pressure and temperature, while a clamp is an auxiliary component used to attach the burst disc at an appropriate location on the container. Function of the clamp: First, it ensures a firm grip around the burst disc and a tight seal ； Second, it must be matched with the burst disc element to ensure accurate rupture and pressure release at the specified burst pressure. Blade rupture disc devices are suitable for the following situations: 1. When the working medium is viscous or prone to crystallization or polymerization, which can cause the valve disc of the safety valve to stick to the valve seat or block the safety valve ； 2. Due to chemical reactions or other reasons, the pressure inside the vessel can rise sharply in an instant; the safety valve cannot open in time to release this pressure due to inertial effects ； 3. When the working medium is a highly toxic gas or an expensive gas, leaks from safety valves are inevitable, leading to environmental pollution or waste ； 4. Situations requiring complete discharge, or complete discharge without any obstacles ； 5. Other situations where safety valves are not suitable and rupture discs are applicable. Participation: Prize of 3-5 Wealth ； Correct answer: Reward of 5-10 wealth points ； Note: This post is valid for one week.