【Daily Question】10.11 True or False: Air purging method (+20 wealth)
Thread Content
This post was last edited by Guan Gongyu on 2015-10-11 at 14:08. True or False: Air purging should be carried out in the order of purging the main lines first and then the branch lines; for the branch lines, a method of intermittent purging in turns should be used. ( ) Correct: +5 wealth; Explanation: +10 wealth; Sharing work experiences: +20 wealth
Yes, purging is generally carried out following the principle of \"purging the main pipes first and then the branch pipes\", as well as from top to bottom. In steam pipeline systems, purging should be done in the order of main lines first and then branch lines; for branch pipes, a method of intermittent purging in turns should be used
Air purging should be carried out in sequence, starting with the main lines and then the branch lines; for the branch lines, a method of intermittent purging in turns should be used. (Correct)
Correct------------------------Start with the main pipe before moving on to the branch pipes, from top to bottom; blow out the branch pipes in turn at intervals
Air purging should be carried out in sequence, starting with the main lines and then the branch lines; for the branch lines, a method of intermittent purging in turns should be used. ( √ )
Air purging should be carried out in sequence, starting with the main lines and then the branch lines; for the branch lines, a method of intermittent purging in turns should be used. ( √ )
Air purging should be carried out in sequence, starting with the main lines and then the branch lines; for the branch lines, a method of intermittent purging in turns should be used. (Correct)
Correct. The general requirements for pipeline purging are: equipment and pipelines that are not allowed to be purged should be isolated from the purging system. Before pipeline purging, orifice plates, control valves connected by flanges, main valves, throttle valves, safety valves, instruments, etc., should not be installed. For the aforementioned valves and instruments that are connected by welding, protective measures such as providing a bypass flow path or removing the seals should be taken. The purging sequence should follow the order of main pipes, branch pipes, and drain pipes; any dirt expelled during purging must not enter the pipes that have already been successfully purged. The dirt discharged during purging must not contaminate the environment; random discharge is strictly prohibited. A no-entry zone should be established before purging. No other operations that could affect cleanliness shall be carried out after the pipeline has been successfully purged.