【Daily Question No. 031】2017.01.31

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This post was last edited by 955559 on 2017-7-31 at 15:38. [Daily Question No. 031] January 31, 2017: Before starting the water operation of the equipment, it is necessary to run （　） through the pipelines and equipment in order to remove any dirt or slag from them, thus creating the conditions for the water operation. 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.) ) Rinse the new Chang Cup with water–Voting for the 2016 HaiChuan Top 10 Members has begun; choose the member you care about the most (please cast your valuable vote for those from the Petrochemical Division). http://bbs.hcbbs.com/thread-1667649-1-1.html Summary post of Q&A questions for 2017 (updates available now). http://bbs.hcbbs.com/thread-1657793-1-1.html Summary post of daily questions for 2017 (updates available now). http://bbs.hcbbs.com/thread-1657794-1-1.html Summary post of Q&A questions from 2016 (all updates completed). http://bbs.hcbbs.com/thread-1597792-1-1.html Third round of HaiChuan’s Outstanding Management Member selection. http://bbs.hcbbs.com/thread-1655902-1-1.html Petrochemical Division – “Creative Ideas for Energy Saving” campaign. http://bbs.hcbbs.com/thread-1666758-1-1.html Xiaomi phones are up for grabs. Summary post collecting chemical industry technical materials from the “Petrochemical Section”. http://bbs.hcbbs.com/thread-1654603-1-1.html Many prizes await you (Source: HaiChuan Chemical Forum)