剖析压缩机壳体发生裂纹的启事(国外英文资料).doc

分析压缩机壳体产生裂纹的原因(国外英文资料) Analyze the causes of cracks in the compressor casing The quality of the shell Thats basically impossible. Because the compressor has been in the water pressure and tightness test and the test machine before leaving the factory. Improper operation If operators in front of the compressor operation is not in strict accordance with the operating rules check the compressor, the machine cause compressor pressure-out exhaust valve does not open, or a compressor before starting into liquid and without a lot of propane to drainage, with a strong impact that Yin and Yang between rotor, its load capacity than the shell. Poor quality of maintenance When the compressor is repaired, it is improper to apply force to the compressor casing. 2, when the compressor maintenance after removal of the bearing and rotor of the Yin and Yang of assembly quality is poor, Yin and Yang rotor phase suppress caused the load capacity than the shell. The compressor comes in and goes into the propane liquid Compressor machine into a large amount of liquid propane, Yin and Yang between rotor produced strong impact, the impact energy through the shaft and bearing to the compressor shell crack. The propane fluid enters the compressor Discount can be seen from the above points, screw compressor rotor turns motionless or shell crack, which are linked to the compressor with liquid rev machine or run into a lot of liquid in the process of the relevant, the following is the cause of the air compressor with liquid rev machine analysis is as follows: 1) design failure. The structure and working principle of the screw compressor can be seen that the screw compressor is not allowed to carry liquid in the gas that is required to be inhaled at start-up time. The inlet piping of the 1.2m m3 gas processing plant in the tower has a liquid collector to prevent the propane fluid from entering the body. However, due to design error, the screw compressor should be placed the entrance of the pipe