【Q&A Question 143】2018.05.23
Thread Content
【Q&A Question 143】May 23, 2018: Briefly explain the reasons for the excessively high temperature of the outer wall of the heating furnace’s firebox. Reasons: ① The secondary air damper is set too low； b. Incorrect burner installation height and angle ； ②The gaps in the insulation bricks around the fire pit weren’t properly sealed. Treatment: ① Increase the secondary air damper opening and reduce the primary air damper opening ； ②Center of gravity correction ； ③Repair during maintenance. (Unless otherwise specified, all questions and answers are based on hydrogenation units.) ) Correct: 3 wealth, Incorrect: 1 wealth ； Mass posting of posts – rated based on the lowest score ； Replies that are unrelated to the answer are considered spam and will be deleted immediately. For management purposes, if you need to view content from a few days ago, please go to https://bbs.hcbbs.com/home.php?mod=space&uid=3862647&do=thread&view=me&from=space through the summary post below. The APP short-video skill competition has started! https://bbs.hcbbs.com/forum.php?mod=viewthread&tid=1951670
①The secondary air damper is set too low; b. The installation height and angle of the burner are incorrect; ② The gaps in the insulation bricks surrounding the burner area are not properly sealed.
The secondary air damper is set too low; the installation height and angle of the burners are incorrect; the gaps in the insulation bricks surrounding the fire pit have not been properly addressed
Large damper opening angle, low installation height
Reason: ① The secondary air damper is closed too tightly； b. Incorrect burner installation height and angle ； ②The gaps in the insulation bricks around the fire pit weren’t properly sealed. Treatment: ① Increase the secondary air damper opening and reduce the primary air damper opening ； ②Center of gravity correction ； ③Repair during maintenance.
The secondary air damper is set too low; the installation height and angle of the burners are incorrect; the gaps in the insulation bricks surrounding the fire pit have not been properly addressed
①The secondary air damper is closed too tightly； Incorrect burner installation height and angle ； ②The gaps in the insulation bricks around the fire pit weren’t properly sealed. Treatment: ① Increase the secondary air damper opening and reduce the primary air damper opening ； ②Center of gravity correction ； ③Repair during maintenance
Flame reversal caused by factors such as foreign object blockages； Insufficient negative pressure causes heat to accumulate in the fire pit ； Lining damaged
Reason: ① The secondary air damper is closed too tightly； b. Incorrect burner installation height and angle ； ②The gaps in the insulation bricks around the fire pit weren’t properly sealed. Treatment: ① Increase the secondary air damper opening and reduce the primary air damper opening ； ②Center of gravity correction ； ③Repair during maintenance.
Flue leakage; excessive fuel gas flow
1. Secondary air supply is inappropriate, causing the flame to burn at a lower position. 2. The burner is not installed properly. 3. The negative pressure in the furnace is too low, preventing heat from reaching the combustion chamber