【Q&A Question 110】April 20, 2018
Thread Content
【Q&A Question 110】April 20, 2018: Briefly explain the reasons why a heating furnace will not ignite Possible cause: Excessive draft in the furnace chamber ； The gas contains too much air or nitrogen ； Severe gas carrying liquid ； If the burner or gas pipeline is blocked by a flame arrester ； The main fuel gas isolation valve is closed. (Unless otherwise specified, all questions and answers are based on hydrogenation units.) ) The validity period for this question is 48 hours; within those 48 hours, 10 wealth points are awarded for correct answers and 2 wealth points for incorrect ones ； If a response is given after 48 hours, the score is halved, regardless of whether it is correct or not ； 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 skills competition has begun! https://bbs.hcbbs.com/forum.php?mod=viewthread&tid=1951670
Possible cause: Excessive draft in the furnace chamber； The gas contains too much air or nitrogen ； Severe gas carrying liquid ； If the burner or gas pipeline is blocked by a flame arrester ； The main fuel gas isolation valve is closed.
The chimney draft is too strong; the gas contains too much air and nitrogen, there is severe liquid carryover in the gas, and the burner is blocked
Possible cause: Excessive draft in the furnace chamber； The gas contains too much air or nitrogen ； Severe gas carrying liquid ； If the burner or gas pipeline is blocked by a flame arrester ； The main fuel gas isolation valve is closed. ...
The draft in the furnace is too strong； The gas contains too much air or nitrogen ； Severe gas carrying liquid ； If the burner or gas pipeline is blocked by a flame arrester ； Main fuel gas isolation valve closed
(1) Excessive negative pressure in the furnace or the flue dampers not being open, resulting in positive pressure in the furnace. ? (2) Water present in the fuel gas. ? (3) Blockages in the fuel gas pipelines or nozzles, or faults with the control valves. ? (4) Interruption in the supply of fuel gas
The fuel gas is not in use, the negative pressure in the furnace is too high, and there are issues with the igniter
The main reasons why a heating furnace fails to ignite are: 1. Excessive draft in the chimney; 2. Too much air and nitrogen in the gas; 3. Severe liquid contamination in the gas; 4. Clogged burner
Excessive negative pressure in the furnace chamber； The flame arrester is blocked or the control valve is blocked ； Fuel gas pressure is too high ； The fuel gas has severe liquid carryover.
The reasons why it won’t ignite are: circuit failure, clogged burner, insufficient fuel pressure, low oil temperature, etc.
1. The air-to-fuel ratio is incorrect； 2. Igniter failure ； 3. Flame detector failure