【Q&A Question 052】2017.02.21
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This post was last edited by 955559 on 2017-7-21 22:02. [Q&A Question No. 052] 2017.02.21: What are the reasons for the increase in pressure inside the furnace of a heating furnace? 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.) ) 1) The air damper is opened too wide, resulting in excessive excess air ； 2) Improper adjustment of flue dampers ； 3) Flue gas exhaust fan failures, etc. Petrochemical Zone—“Creative Ideas for Energy Saving” event: http://bbs.hcbbs.com/thread-1666758-1-1.html The New Normal Cup—voting for the top 10 members of HaiChuan in 2016 is now underway; vote for the member you care most about (please cast your valuable vote for the members in the Petrochemical Zone). http://bbs.hcbbs.com/thread-1667649-1-1.html Summary thread of Q&A questions for 2017 (updates available now). http://bbs.hcbbs.com/thread-1657793-1-1.html Summary thread of daily questions for 2017 (updates available now). http://bbs.hcbbs.com/thread-1657794-1-1.html Summary thread of Q&A questions from 2016 (updates completed). http://bbs.hcbbs.com/thread-1597792-1-1.html Third-phase selection process for outstanding management members of HaiChuan. http://bbs.hcbbs.com/thread-1655902-1-1.html Petrochemical Zone—“Creative Ideas for Energy Saving” event: http://bbs.hcbbs.com/thread-1666758-1-1.html Xiaomi phones are up for grabs. Thread for collecting chemical industry technical materials in the “Petrochemical Section”. http://bbs.hcbbs.com/thread-1654603-1-1.html Many prizes are waiting for you (Source: HaiChuan Chemical Forum)
1. The air damper is opened too wide, resulting in excessive excess air. 2. The flue dampers are not adjusted properly; the flue gas exhaust fan is faulty; there is severe ash accumulation in the convection tubes or air preheater, which leads to an increase in pressure drop inside the furnace.
The opening degree of the air outlet system baffles is insufficient； Induction fan failure ；
The damper is open too wide, the flue baffle is not adjusted properly, and the exhaust fan is faulty.
The damper is opened wider, the flue baffle is closed more tightly, and the wind speed in the air increases
1) The air damper is opened too wide, resulting in excessive excess air； 2) Improper adjustment of flue dampers ； 3) Flue gas exhaust fan failures, etc.
1. The opening degree of the flue damper is low. 2. The opening degree of the air duct butterfly valve is large. 3. Excessive air supply volume. 4 The chimney height is insufficient.
1. The damper is opened too wide； 2. Improper adjustment of the flue baffle.
The air damper is opened too wide, the flue dampers are not adjusted properly, the flue exhaust fan is faulty, etc
(1) The damper is opened too wide, resulting in excessive excess air. (2) The flue dampers are not adjusted properly, the flue gas exhaust fan is faulty, and there is severe ash accumulation in the convection tubes or air preheater, leading to an increase in pressure drop inside the furnace.
The air damper is opened too wide, resulting in excessive excess air; the flue dampers are not adjusted properly; the flue gas exhaust fan is faulty; severe ash accumulation occurs in the convection tubes or air preheaters, all of which lead to an increase in pressure drop inside the furnace.