[Q&A] Catalytic Coking Reformate Blending Edition 20170925
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Participation: Prize of 5 Wealth； Correct answer: Reward of 10 wealth points ； Note: This post is valid for 48 hours. Question: Why can’t the backup pump be started if its rotor doesn’t rotate? Answer: If the backup pump does not rotate, it indicates that there is a fault in the pump’s bearing housing or inside the pump itself, or the impeller may be stuck and the shaft may be excessively bent. If attempted to start, the strong torque generated by the motor will force the pump to rotate, which can damage the internal components and lead to a shaft seizure; the motor may also experience overload and either trip its protection switch or get damaged. Use your fingers to get involved – our ultimate goal is for everyone to acquire knowledge. http://bbs.hcbbs.com/static/image/hrline/1.gif http://bbs.hcbbs.com/static/image/hrline/2.gif The answers will be announced automatically in two days. Petrochemical Zone – “Creative Ideas for Energy Saving”: The second phase of this activity is currently in full swing. http://bbs.hcbbs.com/thread-1666758-1-1.html [Daily Question] Summary post for 2017 on the blending of catalytic coking and reforming products. http://bbs.hcbbs.com/thread-1811219-1-1.html [Q&A] Summary post for 2017 on the blending of catalytic coking and reforming products. http://bbs.hcbbs.com/thread-1826018-1-1.html
Prevent shaft bending; otherwise the motor will be unable to rotate the shaft, causing the pump to stick to it and leading to secondary hazards
If the backup pump does not rotate, it indicates that there is a fault in the pump’s bearing housing or within the pump itself, or the impeller may be stuck and the shaft may be excessively bent. If attempted to start, the powerful motor force will force the pump to rotate, which can damage the internal components and lead to a shaft seizure; the motor may also experience overload and either trip its protective devices or get damaged.
If the pump cannot be rotated, it indicates a problem with the bearings; issues such as bending, rust, or sticking may be present. Attempting to start the pump prematurely could lead to shaft seizure and motor damage
Answer: When the backup pump does not start rotating, it indicates that there is a fault inside the pump’s bearing housing or within the pump itself. It could be due to excessive pressure inside the pump. In such cases, if the pressure reading is high, the pressure can be relieved; otherwise, it is necessary to contact a mechanic to disassemble the pump and determine the cause. Otherwise, once the pump is started, the powerful motor force will force the pump shaft to rotate, which can damage the internal components and lead to a shaft seizure. The motor may also trip or get damaged due to the excessive load.
If the backup pump does not rotate, it indicates that there is a fault in the pump’s bearing housing or within the pump itself, or the impeller may be stuck and the shaft may be excessively bent. If attempted to start, the powerful motor force will force the pump to rotate, which can damage the internal components and lead to a shaft seizure; the motor may also experience overload and either trip its protective devices or get damaged.
If the backup pump does not rotate, it indicates that there is a fault in the pump’s bearing housing or within the pump itself, or the impeller may be stuck and the shaft may be excessively bent. If attempted to start, the powerful motor force will force the pump to rotate, which can damage the internal components and lead to a shaft seizure; the motor may also experience overload and either trip its protective devices or get damaged.
This indicates a fault within the pump bearings or in the pump itself; attempting to start it could cause damage to the internal components, leading to a shaft seizure. The motor may also trip or burn out due to excessive load
If the backup pump does not rotate, it indicates that there is a fault in the pump’s bearing housing or inside the pump itself, or the impeller may be stuck and the shaft may be excessively bent. If attempted to start, the powerful motor force will force the pump to rotate, which can damage the internal components and lead to a shaft seizure; the motor may also experience overload and have its protection switch trip or get damaged.