【Q&A Question 008】2017.01.08
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This post was last edited by 955559 on 2017-7-21 at 13:14. [Q&A Question No. 008] What is the purpose of the emergency pressure relief test in a hydrogenation unit? 2017.01.08 The reference answers will be visible after responding; points are awarded by identifying the key points. (Unless otherwise specified, all questions and answers are based on hydrogenation units.) ) The purpose is to verify whether the emergency pressure relief orifices installed as per the design requirements meet the specified pressure relief speeds and ensure unobstructed pathways for pressure release, as well as to examine the vibration displacement of the flare tower and its impact on other devices. Ensure the safety and reliability of each interlock system when the reaction system is in an accident condition, and conduct an accident scenario simulation. 2017 Q&A Summary Thread (updates have begun) http://bbs.hcbbs.com/thread-1657793-1-1.html 2017 Daily Question Summary Thread (updates have begun) http://bbs.hcbbs.com/thread-1657794-1-1.html 2016 Q&A Summary Thread (updates completed) http://bbs.hcbbs.com/thread-1597792-1-1.html Xinchang Cup – 2016 Haichuan Top 10 Selection – Please recommend candidates http://bbs.hcbbs.com/thread-1654112-1-1.html Third Round of Haichuan Outstanding Management Members Selection http://bbs.hcbbs.com/thread-1655902-1-1.html (Source: Haichuan Chemical Forum)
Ensure the safety of the device and prevent accidents caused by high voltage leaking into low voltage.
Whether the pressure relief valve is functioning properly and can open correctly in an emergency
Verify the instrument readings of the quench hydrogen system, as well as the operating performance of the quench hydrogen control valves and the relationship between their opening degree and the flow rate of cold hydrogen； Check the effect of the amount of cold hydrogen on the temperature of the reaction bed layer, as well as the distribution of quench hydrogen ； Ensure the quench hydrogen system is unobstructed and fully functional.
It is an emergency pressure relief test for the device in the event of an accident, to determine whether the system’s own pressure relief mechanism and its impact on the surrounding area are safe.
(1) Verify whether the installed orifice plate meets the pressure relief requirement of 0.7 MPa/min. (2) Check whether the flare system can be used properly. (3) Check whether the logic and operation of the self-protection interlock system are accurate.
Protect the reactor and catalyst by removing the heat from inside
1. Check whether the emergency pressure relief orifice plates installed as per the design requirements meet the requirements regarding pressure release speed. 2. Calibrate the emergency pressure relief orifice plates. 3. Assess the safety and reliability of each interlock system when the reaction system is in an accident condition