Hot oil pump should pay attention to during the repair process
Hot oil pump is an ideal hot oil circulation pump or heat transfer pump. It is an ideal supporting pump for heat exchange equipment. Kunshan Orange pump industry provides maintenance instructions and maintenance for customers during the maintenance process. Assembly drawings, the following are the main considerations:
When disintegrating:
1. Use a dial indicator to measure the balance plate clearance before disassembling the thrust bearing and make a record;
2. When disassembling the hot oil pump, all parts must be marked according to the original assembly order so as to avoid confusion and wrong loading during reassembly;
3. Small parts (such as keys) that are not convenient for marking can be placed together with the impeller or guide vane (middle section) of the same level;
4. When you disintegrate, you can intuitively feel if there are abnormal parts, such as with loosening;
Parts maintenance:
1. Visually check whether the surface of each part is normal, and each mating surface must be free of bumps, scratches, or rust;
2. Dosage has measured whether the key matching parts tolerances are qualified;
3. The amount of clearance between the impeller seal ring, the housing seal ring, the guide vane seal ring, the interstage sleeve, etc. is within the tolerance range, and if the wear is too great, it needs to be replaced;
4. Check the bearing is in good condition;
5. All seals and seals are best replaced;
Reload:
1. Install the rotor first and perform the dynamic balance test again;
2. Reinstall the parts in the reverse order of dismantling the pump. When reloading, pay attention to the clearance value at each sealing ring again to ensure that it is correct;
3. The total rotor volume should be measured before installing the balance plate;
4. After installing the balance disk, measure the rotor semi-string amount;
5. Compared with the total and semi-string quantities required on the general assembly drawing of the manufacturer, it should basically meet the requirements of the drawings. Generally, the semi-string quantity is about half of the total string quantity;
6. Evenly tighten the main bolts and pay attention to the angle;
7. Suction a gauge on the shaft, and rotate the shaft to make a watch on the balance plate. The tolerance shall be in accordance with the requirements of the drawings. Generally it shall not exceed 0.06;
8. When installing the thrust bearing, attention should be paid to adjusting the clearance of the balance plate. The adjustment ring of the bearing should be used to adjust the balance plate clearance to the drawing requirements;
When disintegrating:
1. Use a dial indicator to measure the balance plate clearance before disassembling the thrust bearing and make a record;
2. When disassembling the hot oil pump, all parts must be marked according to the original assembly order so as to avoid confusion and wrong loading during reassembly;
3. Small parts (such as keys) that are not convenient for marking can be placed together with the impeller or guide vane (middle section) of the same level;
4. When you disintegrate, you can intuitively feel if there are abnormal parts, such as with loosening;
Parts maintenance:
1. Visually check whether the surface of each part is normal, and each mating surface must be free of bumps, scratches, or rust;
2. Dosage has measured whether the key matching parts tolerances are qualified;
3. The amount of clearance between the impeller seal ring, the housing seal ring, the guide vane seal ring, the interstage sleeve, etc. is within the tolerance range, and if the wear is too great, it needs to be replaced;
4. Check the bearing is in good condition;
5. All seals and seals are best replaced;
Reload:
1. Install the rotor first and perform the dynamic balance test again;
2. Reinstall the parts in the reverse order of dismantling the pump. When reloading, pay attention to the clearance value at each sealing ring again to ensure that it is correct;
3. The total rotor volume should be measured before installing the balance plate;
4. After installing the balance disk, measure the rotor semi-string amount;
5. Compared with the total and semi-string quantities required on the general assembly drawing of the manufacturer, it should basically meet the requirements of the drawings. Generally, the semi-string quantity is about half of the total string quantity;
6. Evenly tighten the main bolts and pay attention to the angle;
7. Suction a gauge on the shaft, and rotate the shaft to make a watch on the balance plate. The tolerance shall be in accordance with the requirements of the drawings. Generally it shall not exceed 0.06;
8. When installing the thrust bearing, attention should be paid to adjusting the clearance of the balance plate. The adjustment ring of the bearing should be used to adjust the balance plate clearance to the drawing requirements;
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