1、间隙增大
1, gap enlargement
A、 主机的阴阳转子间的距离增大。带来的直接后果是压缩机在压缩的过程中泄漏（即回渗漏）增大，排出机器的压缩空气体积变小。体现在效率方面就是压缩机的压缩效率降低。
The distance between the A and the rotors of the Yin and Yang of the main engine increases. The direct consequence is that the compressor leaks during the compression process (i.e., back leakage), and the volume of compressed air discharged from the compressor becomes smaller. In terms of efficiency, compression efficiency of compressors is reduced.
B、阴阳转子与后端盖和轴承处的间隙增大，主要会影响到压缩机的密封性和压缩效率，同时对阴阳转子的使用寿命会产生很大的影响，因为很多机械故障初成因都是轴承与主轴之间的间隙造成的。
The gap between the B, the Yin and Yang rotor and the rear end cover and the bearing is increased, which will affect the sealing and compression efficiency of the compressor. At the same time, it will have a great influence on the life of the Yin and Yang rotor, because many of the original causes of mechanical failure are made between the clearance between the bearing and the spindle.
2、磨损增大
2. Increasing wear and tear
众所周知，只要是机械在运转都存在磨损，正常情况下因为有润滑液润滑，磨损会减轻很多，但长期高速运转，磨损是在慢慢增大的。以高端轴承为例：在近乎不可能的条件下（如长期空转、润滑液足够干净、冷却系统足够好、及使用环境温度、湿度等等），也只能保证数年。就压缩机主机而言，除轴承外还存在其它部件的磨损。如轻微磨损不采取正确的预防措施，很容易导致磨损增大、造成其它主要部件的损坏和磨损。
As we all know, as long as the machinery is worn, the wear will be reduced in normal condition because of lubrication, but the wear is slowly increasing for a long time. Take the high end bearing as an example: in the near impossible conditions (such as long term air rotation, sufficient clean of the lubricating fluid, good cooling system enough, and the use of ambient temperature, humidity, etc.), only a few years can be guaranteed. As far as compressor host is concerned, there are other parts wear out besides bearings. If minor wear is not taken correctly, it will easily lead to wear and tear, causing damage and wear of other main components.
3、部件变形
3, component deformation
空气压缩机主机是压缩机的核心压缩部件，其内部部件长期处于高温、高压的环境中，再加上高速的运转，时间一长必然存在部件变形的现象。同时，造成变形的原因还有使用环境因素，而空气压缩机一般使用的环境的空气中都会有尘埃和杂质，这些细小的固体物质在进入机器后，日积月累若结成较大的固体块，就有可能造成阴阳转子变形，间隙增大，严重的会导致主机卡死。
The main compressor is the core compression component of the compressor. Its internal components are in the environment of high temperature and high pressure for a long time, and the high speed operation is added, and the deformation of the parts is inevitable for a long time. At the same time, the cause of deformation and the use of environmental factors, and the air compressor generally used in the environment of the air will have dust and impurities, these tiny solid substances, after entering the machine, when the accumulation of large solid blocks, it may cause the deformation of the Yin and Yang rotor, the gap increases, serious will lead to The host card is dead.
4、部件损坏
4, part damage
在空气压缩机主机部分的易损部件主要有：各种垫片、密封圈、轴油封等，尤其是轴油封，长期处于高温、高压、和高速运转的环境中，其使用寿命比大大缩短。其损坏的直接后果是造成压缩机漏油，如未能及时发现，则会造成阴阳转子和轴承因缺少润滑而烧毁。
In the main parts of the air compressor, the main parts of the vulnerable parts are: various gaskets, seals, shaft oil seals, etc., especially the shaft oil seal, in a long time in high temperature, high pressure, and high-speed operation of the environment, its service life ratio is greatly shortened. The direct consequence of its damage is the leakage of oil from the compressor. If it fails to be detected in time, it will cause the rotor and bearing of the Yin and yang to burn down due to lack of lubrication.
5、成本增加
5. Increase in cost
这里成本指保养成本和电力成本。由于空气压缩机主机在长时间运转未大修，部件磨损增大，一些磨损的杂质留在主机腔内，会造成润滑液寿命缩短，同时，由于杂质的原因，油气分离器芯和油过滤期的使用时间大大缩短，造成保养成本增加。在电力成本方面，由于磨擦增大和压缩效率降低，必然会造成电力成本增大。另、由于压缩机主机的原因造成的气量下降、压缩空气品质下降也会造成生产成本的间接增大。
The cost here refers to the maintenance cost and the electricity cost. As the main engine of the air compressor has not been overhauled for long time, the wear and tear of the components are increased and some of the worn impurities are left in the host cavity, and the life of the lubricating fluid will be shortened. At the same time, because of the impurities, the use time of the oil and gas separator and the oil filtration period is greatly shortened, and the maintenance cost is increased. In the aspect of power cost, the increase of friction and the reduction of compression efficiency will inevitably result in the increase of power cost. In addition, the reduction of gas consumption and reduction of compressed air quality due to compressor main engine will also lead to indirect increase of production cost.
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