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【Daily Question: Pump Equipment】Short Answer Question, 2019.2.10

2019-02-10View Original

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This post was last edited by 3983596_FPPZ on 2019-2-22 at 12:42. Rules for the bg2.png quiz: 1. If the answer is incorrect, +2 wealth will be given for active participation; if the answer is somewhat reasonable but not specific enough, +5 wealth will be given; if the answer is correct, +8 wealth will be given. 2. Rewards for answers are available once per person only. 3. Each reply allows scoring for only one person. 4. The answer and its explanation will be visible after responding. 5. The reward is valid for 48 hours; no reward will be given if the deadline is missed. The student has won another award; come by here every day. Briefly explain why pumps of the OH2 type as specified in API610 standards (horizontal pumps with pump supports and centerline support) can be used in high-temperature conditions Answer: Under high-temperature conditions, the pump body of this type, which is supported by a structure along its central axis, expands upward and downward due to heat expansion. However, the position of the axis around which it is supported remains largely unchanged. The alignment of the couplings is not affected by changes in operating temperature, and the stress on the shaft remains essentially constant; therefore, this design is often used in high-temperature applications
Reply #22019-02-10
Under high-temperature conditions, the pump body of this type, which is supported by a structure along its central axis, expands upward and downward as a result of heat expansion; however, the position of the axis around which it is supported remains largely unchanged. The alignment of the couplings is not affected by changes in temperature, and the forces acting on the shaft remain essentially constant. Therefore, this design is often used in high-temperature applications
Reply #32019-02-10
Pumps of this type are installed with their centerline aligned; the bearing housing bears the forces applied to the pump shaft and maintains the position of the rotor. Therefore, when the temperature changes, the installation centerline of the pump remains unchanged, and the alignment between the pump and the motor is not affected by temperature changes.
Reply #42019-02-10
Under high-temperature conditions, the pump body of this type, which is supported by a structure along its central axis, expands upward and downward as a result of heat expansion; however, the position of the axis around which it is supported remains largely unchanged. The alignment of the couplings is not affected by changes in temperature, and the forces acting on the shaft remain essentially constant. Therefore, this design is often used in high-temperature applications
Reply #52019-02-10
Under high-temperature conditions, the pump body of this type, which is supported by a structure along its central axis, expands upward and downward as a result of heat expansion; however, the position of the axis around which it is supported remains largely unchanged. The alignment of the couplings is not affected by changes in temperature, and the forces acting on the shaft remain essentially constant. Therefore, this design is often used in high-temperature applications
Reply #62019-02-10
Under high-temperature conditions, the pump body of this type, which is supported by a structure along its central axis, expands upward and downward as a result of heat expansion; however, the position of the axis around which it is supported remains largely unchanged. The alignment of the couplings is not affected by changes in temperature, and the forces acting on the shaft remain essentially constant. Therefore, this design is often used in high-temperature applications
Reply #72019-02-10
This post was last edited by 3983596_FPPZ on 2019-2-10 at 20:01. Happy New Year! Please help me analyze this: How did the person who posted the first reply know the answer? :L
Reply #82019-02-10
Under high-temperature conditions, the pump body of this type, which is supported by a structure along its central axis, expands upward and downward as a result of heat expansion; however, the position of the axis around which it is supported remains largely unchanged. The alignment of the couplings is not affected by changes in temperature, and the forces acting on the shaft remain essentially constant. Therefore, this design is often used in high-temperature applications
Reply #92019-02-10
It’s very simple; everyone at the Super Edition level and above can see the answer
Reply #102019-02-10
Under high-temperature conditions, the pump body of this type, which is supported by a structure along its central axis, expands upward and downward as a result of heat expansion; however, the position of the axis around which it is supported remains largely unchanged. The alignment of the couplings is not affected by changes in temperature, and the forces acting on the shaft remain essentially constant. Therefore, this design is often used in high-temperature applications
Reply #112019-02-10
After the pump body expands due to heat, the centerline of the pump shaft remains essentially unchanged

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