【Q&A Question 135】2017.05.15
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This post was last edited by 955559 on 2017-7-21 22:55. [Q&A Question 135] 2017.05.15: Under what circumstances should a motor be stopped urgently? The reference answers will be visible after responding; scoring is granted by identifying the key points. (Unless otherwise specified, all questions and answers are based on hydrogenation units.) ) (1) When it endangers personal safety ； (2) When the motor smokes, emits an odor, or catches fire ； (3) When significant vibration or axial movement occurs ； (4) The airframe or bearings heat up to their limit ； (5) The motor rotates slowly and makes abnormal noises. Scoring criteria: 2 Wealth points for incorrect responses; *incomplete* answers earn 3–8 points. 10 Wealth points for correct answers, with detailed explanations; responses that are correct but lack sufficient details earn 15–20 Wealth points. Please score according to these criteria. Note: If there are editing records after answering, only those who participated will be given points. For continuous malicious spamming, 2 points will be deducted each time, with no upper limit. Pure numbers, pure emojis, or random letters unrelated to the answer are all considered malicious spamming; points will start to be deducted after three warnings. 2017 Q&A Summary Thread (updates starting now) http://bbs.hcbbs.com/thread-1657793-1-1.html 2017 Daily Question Summary Thread (updates starting now) http://bbs.hcbbs.com/thread-1657794-1-1.html 2016 Q&A Summary Thread (updates completed) http://bbs.hcbbs.com/thread-1597792-1-1.html
When personal safety is at risk, when the motor smokes, emits an unpleasant odor or catches fire, when there is severe vibration or axial movement, when the temperature of the motor body or bearings is excessively high, or when the motor speed is abnormal
The pump failed, there were problems with the motor bearings, and a fire broke out
Leaks cannot be controlled, and fires are out of control
①When personal safety is at risk. ②When the motor is smoking, emitting an odor, or catching fire. ③When there is significant vibration or axial movement. ④The fuselage or bearings heat up to their limit.
The motor bearing temperature is extremely high, smoking occurs, the motor vibrates abnormally, and there are leaks in equipment such as pumps
① Times when human safety is at risk. ② When the motor is smoking, emitting an odor, or catching fire. ③ When there is significant vibration or axial oscillation. ④ The body or shaft heats up to its limit. ⑤ The motor rotates slowly and makes abnormal noises
The motor vibrates heavily； There is severe abnormal noise, and the motor generates a lot of heat ； Emergency stop in case of threat to personal safety
Revealing fire, vibration, excessive temperature, vacuum loss, and abnormal conditions of the device
When personal safety is at risk. When the motor is smoking or emitting an odor, or is on fire. When there is significant vibration or axial movement. When the fuselage or bearings heat up to their limit. The motor rotates slowly and makes abnormal noises.
1. Motor shaft clamp； 2. Failure of the compressor unloader causes overpressure at the outlet ； 3. Compressor liquid slugging, cylinder collision ； 4. Motor stator temperature exceeds limit ；