三叶罗茨风机维修时应遵循哪些原则?罗茨风机使用的期限久了，或多或少会出一些难题，罗茨风机在选择检修的情况下，我们要遵照下边几个方面标准，由于，并不一定出現常见故障的离心风机，都是有检修的必需！

　　What principles should be followed when repairing a three leaf Roots fan? Roots blower has been in use for a long time and may encounter some difficulties to some extent. When choosing maintenance for Roots blower, we need to follow the following standards. As centrifugal fans that may not necessarily have common faults are necessary for maintenance!

　　1、重要性标准

　　1. Importance criteria

　　罗茨风机凡使用过的零件，卸下来查验，无非下列几类状况：一是品质情况良好，或是虽然有损坏但未作维修还可以再次使用；二是存有缺点，但历经修补依然能够 再次使用；三是有很大的缺点，无法修补或维修使用价值并不大，必须开展拆换。

　　The parts of Roots blower that have been used, when removed for inspection, are generally in the following conditions: first, they are of good quality, or although they are damaged but not repaired, they can still be used again; The second is that it has shortcomings, but can still be reused after being repaired; Thirdly, there are significant drawbacks, such as the inability to repair or the low value of maintenance, and it is necessary to carry out disassembly and replacement.

　　查验全过程中，该修换的零件应立即修换，不然危害鼓风机电机的查验品质。但假如对沒有危害的位置盲目跟风开展维修，或是将原本能够 再次使用的零件提早拆换，又会导致消耗，提升检修花费。因而，明确零件是不是修换，整体应该遵照“必须才修换”的标准。

　　During the entire inspection process, the parts that need to be replaced should be repaired immediately, otherwise it will endanger the inspection quality of the blower motor. But if blindly following the trend for maintenance in non hazardous locations, or replacing parts that could have been reused early, it will lead to consumption and increase maintenance costs. Therefore, it is necessary to clarify whether the parts need to be repaired or not, and the overall standard should be followed to ensure that they are replaced only when necessary.

　　2、可靠性标准

　　2. Reliability standards

　　有缺陷的零件必须修换，但到底是修還是换，应遵照“能靠谱使用”的标准。选择维修的零件，维修后理应修复或大部分修复原来的生产制造精密度，考虑整个设备对零件的技术标准。这种规定，一般 包含零件的规格偏差，粗糙度，尺寸公差和表层强度等。一般说来，损坏不太比较严重的外壳、板墙和转子等，历经修补大多数能够 依旧使用，该类缺点一般 选择维修；但滚动轴承、传动齿轮及骨架密封等零件一旦毁坏就无法修补，凑合使用通常产生更大的不便，因而维修时一般选择拆换。

　　Defective parts must be repaired and replaced, but whether to repair or replace them should follow the standard of "reliable use". Choose the parts to be repaired, and after the repair, it is necessary to repair or mostly repair the original production and manufacturing precision, taking into account the technical standards of the entire equipment for the parts. This regulation generally includes specifications deviation, roughness, dimensional tolerance, and surface strength of the parts. Generally speaking, for less severely damaged casings, walls, and rotors, most of them can still be used after repair, and maintenance is generally chosen for these types of defects; However, once the components such as rolling bearings, transmission gears, and skeleton seals are damaged, they cannot be repaired, which usually causes greater inconvenience when used properly. Therefore, it is generally recommended to replace them during maintenance.

　　3、经济性标准

　　3. Economic standards

　　能够 修补的零件是不是一定开展修补，而不选择拆换，还理应对维修与拆换的经济性开展较为。这类较为，不单单是对零件的维修与重置费用开展较为，只是将维修花费和维修的使用时间开展衡量。

　　Is it necessary to carry out repairs on parts that can be repaired, rather than choosing to replace them, in order to improve the economic efficiency of maintenance and replacement. This type of comparison is not only about the cost of repairing and resetting parts, but also about measuring the cost of repair and the time it takes to use the repair.

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