【Daily Question No. 130】May 10, 2017
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【Daily Question No. 130】May 10, 2017: （） provides oxygen for combustion, while （） serves to replenish the oxygen supply for burning and adjust the angle of the flame. The reference answers will be visible after responding; scoring is awarded by identifying the key points. (Unless otherwise specified, all questions and answers are based on hydrogenation units.) ) Scoring criteria for primary air and secondary air: 2 wealth points for incorrect answers; 3–8 points for *incomplete* answers. 10 wealth points for correct answers, with detailed explanations; 15–20 wealth points if the answer is correct but lacks sufficient details. Please use these criteria for scoring. 2017 Q&A Summary Thread (updating now) http://bbs.hcbbs.com/thread-1657793-1-1.html 2017 Daily Question Summary Thread (updating now) http://bbs.hcbbs.com/thread-1657794-1-1.html 2016 Q&A Summary Thread (already updated) http://bbs.hcbbs.com/thread-1597792-1-1.html
(The primary air from the blower) provides oxygen for combustion, while (the secondary air) serves to supplement the oxygen supply for combustion and adjust the flame angle.