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 Wysłany: Pią 22:59, 25 Lut 2011 Temat postu: rosetta stone for sale HP410 air compressor shaft |
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HP410 air compressor shaft vibration fluctuation Analysis and Treatment
Action. May 28, Zhengzhou lion Ding companies we have invited professionals vibration spectrum analyzer on the compressor line measurement, data analysis by the judge as follows: ① shell vibration acceleration values are mostly in 30ra / s below is normal. ② from the shell vibration rate, vibration mostly in the 2m / s (RMS), is normal. ③ from the eddy current sensor measured bearing vibration displacement in the 40tLm about slightly higher than normal. ④ vibration amplitude from the results of spectral analysis to see, ≤ 1/2X frequency components more obvious and accompanied by 1x frequency components. ⑤ through the analysis of their orbits, as the double-oval,[link widoczny dla zalogowanych], is precession. ⑥ flow and pressure of the transfer of cryogenic technology in 2003 No. 6 CryogenicTechnologyNo62003'39 'fault handling Huangshun Yao, Zhang million other: HP4IO air compressor shaft vibration Fluctuations and treatment did not affect the whole of the fluctuations. ⑦ by seven days of observation. The occurrence of fluctuations in the basic axis of vibration in the afternoon 12:00 ~ 0: O0 so, when temperature is too high, oil temperature between 42.5 ~ 45 ℃, the disappearance of fluctuations in the basic in the evening 23: O0 ~ 4:00 or day the temperature is low, the oil temperature between 40 ~ 41 ℃, the shaft vibration and the disappearance of the occurrence of fluctuations in oil changes and a direct link, therefore, the preliminary view that the reasons for fluctuations in shaft vibration oil whirl. Reason is that in April 2003 HP4lO compressor overhaul and replace the bearing parking (wrong port watts). In order to extend the compressor run cycle, a smaller bearing clearance adjustment, adjust the gap before and after comparison in Table 2. Smaller the compressor bearing clearance, oil rose to a height to cause oil whirl, cause the compressor shaft vibration fluctuations. Table 2 before and after repair value of bush ask gap (um) project level two three four design value (pre-gap) 30-3630-3628-3428-34 maintenance overhaul before the value of the value of 181,715,154 242ll9l8 improvements bearing clearance is too small and the increase of oil has led to the occurrence of fluctuations in the compressor shaft vibration. Adjust the bearing clearance can eliminate or reduce shaft vibration oil temperature fluctuations. Adjustment needs to stop the disintegration of the compressor bearing clearance,[link widoczny dla zalogowanych], long maintenance cycle, affecting the production of follow-up system throughout the company. We chose to transform the way the oil cooler. Changes in import and export of the two oil cooler pipes ※ ※ Figure 4 Transformation of the former oil cooler piping diagram Figure 5, transformed into oil cooler line diagram of the oil cooler replaced by the current series operation or parallel operation of a single run, can control the oil temperature down, specifically shown in Figure 4,5. After transformation, oil cooler, oil temperature can be controlled within 38 ~ 42 ℃, the compressor shaft vibration fluctuations disappear. Medical Yangqi Chang Yi City cylinder accident occurred at 17:50 on March 28, 2003, should the city of Hubei Province in the oxygenation process of medical Yangqi Chang, cylinders occurred operatives bombed to serious injuries. Xiangfan City in Hubei Province Quality and Technical Supervision, and other units of the accident was investigated. The investigation. March 28 16 pm,[link widoczny dla zalogowanych], security officers should be the city medical Yangqi Chang Lei Lee Bridge from the city back to the 29 individual dealers air bottles, followed by nine oxygen bottles sent to the distribution point, after sufficient Supply and installation Yang filling fixtures have been connected for filling cylinders, filling pressure up to 13MPa and close the main valve, Lee from west to east, from east to west by Yang Cylinder valve closed only. Lee off the third when the cylinder valve when I saw the fire one of the cylinders occurred. The bombing of the nine cylinders. There was a fly to 45 meters on the streets, and other gas cylinders was blown down, the west side of blast walls were burst, filling between the part of the wall was damaged, the roof was asbestos in the air waves lift to fly into pieces, Lee was blown coma after landing on the spot, left arm and right leg fracture, right arm amputated. ※ 7.6mm thick pieces of gas cylinders around the edge of no significant cross-section thinning, a clear plastic fracture fracture characteristics of fragments of paint finish off the bottle, the shoulder white traces of aluminum, the bottleneck with green traces. Is the moment near the end of the filling occurred, when the site was no fire, no burning debris marks (no carbon mass). Close the valve in the moment,[link widoczny dla zalogowanych], due to the residual friction ignited the combustible gas bottle, a chemical. The plant is not running Before filling, filling, the filling of no inspection records, before filling the bottle is not identified the nature of residual gas. So filling gas cylinders may contain flammable gases (according to CB7l44-1999 standard, light green for the hydrogen bottle.) Fan City, Hubei Province, Huan Huan Yang District, Taiwan, Pan Yue Chuang Village, five groups of cryogenic technology 40 · CryogenicTechnologyNQ62003 6 2003
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