Roots FansThe use of the process of encountering the need for maintenance, then the Roots fan maintenance process need to master what principles? On this issue Roots fan editorial take you to understand.
1, Roots fan maintenance necessity principle:
Roots fan where the parts used, dismantled to check, nothing more than the following situations: First, the quality of the condition is still good, or wear and tear, but not for repair can continue to use; Second, there are defects, but after repair can still continue to use; Third, there are large defects, difficult to repair or repair value is not great, need to be replaced.
In the inspection process, the parts that should be repaired and replaced should be repaired and replaced in a timely manner, otherwise the inspection quality of the blower will be affected. However, if there is no impact on the parts of the blind repair, or would have been able to continue to use the parts in advance of the replacement, but also will cause waste, increase maintenance costs. Therefore, to determine whether to repair and replace parts, in general, should follow the “necessary to repair and replace” principle.
2, Roots fan maintenance reliability principles:
Defective parts need to be repaired and replaced, but whether to repair or replace, should follow the “can be used reliably” principle. Choose to repair the parts, repair should restore or basically restore the original manufacturing accuracy, to meet the machine on the technical requirements of the parts. These requirements, usually including the parts of the dimensional error, surface roughness, shape and position tolerance and surface hardness. Generally speaking, wear and tear is not too serious casing, wall panels and rotors, etc., after repairing most can be used as usual, such defects are usually chosen to repair; but bearings, gears and oil seals and other parts once the damage is difficult to repair, and forced to use often bring more trouble, so overhaul is generally chosen to replace.
3, Roots fan maintenance economy principle:
Whether or not a part that can be repaired must be repaired rather than replaced should also be compared to the economics of repair versus replacement. This comparison is not just a comparison of the repair versus replacement cost of the part, but weighs the cost of the repair against the useful life of the repair.