Facial I Hou Cheng|Laigang Tianyuan Gas Company Steel City, Laiwu City 271126 GT087L3K1 Air Compressor Impeller Online Cleaning System Application I. Overview: GT087L3K1 air compressor is a device produced by Atlascopco, Germany, used for Laiwu Tianyuan Gas Co., Ltd. One-hour oxygen-making unit, since the four units were put into operation in 2004-2005, the operating conditions have been relatively stable. In the past one or two years, there has been a start after the shutdown, and the vibration values ​​of the various levels, especially the secondary vibration, After that, the nozzles of the suction pipes of each stage enter the impellers of the air compressor to clean the ash on the surface of the impeller, thereby eliminating the opportunity, reducing the vibration at all levels, and ensuring the safe and stable operation of the air compressor. The flow chart is as follows: the wheel does not clean; 7, open the air compressor secondary gas cooler manual drain valve; level, three-stage vibration value.

For the phenomenon of pressure gauge 3, see the above figure, disassemble the secondary and tertiary suction pipes and find that the secondary and tertiary impellers are heavily ashed. See the following figure for flushing the ash with a high pressure water gun, and clean and clean the impeller blade flow passage. After the impeller is cleaned, see the following figure to install the pipeline and then start the vibration at all levels to return to the normal value. According to this situation, study and analyze the solution to the ash accumulation of the air compressor impeller.

Second, the solution: 1, regular replacement of the air filter device filter cartridge, regular parking for the impeller to wash; air compressor operation when cleaning, can avoid the loss caused by shutdown; analysis of the above two options, the installation of online impeller cleaning device It has a positive effect on ensuring safe and stable operation.

Third, the air compressor impeller online cleaning device: air compressor impeller cleaning device is to use purely installed impeller cleaning device to test, online cleaning time air compressor secondary and tertiary vibration is normal, the first stage impeller cleaning will appear flow, pressure Unstable phenomenon, summed up the cleaning process precautions are as follows: when the machine is parked, it is forbidden to operate the water spray system), the cleaning time is 10-15 days once; in the closed state; 4. After several tests, the operation rules for cleaning the impeller are as follows: : Add water to the plug at the front of the pump until the water discharge valve discharges water; the water pressure control valve to water pressure is 10-12Bar (pressure gauge 1); the third-stage water spray valve pressure is 4Bar (pressure gauge 3) Observe the vibration of the air compressor for 1 minute. After no abnormality, adjust the third-stage water spray pressure to 6 Bar (pressure gauge 3), then observe the vibration of the air compressor for 1 minute, and adjust the pressure to 8 Bar after no abnormality. Table 1 Online cleaning device Clean water standard compressor stage / Compressor all stages of total water consumption (Litres) tank volume (Litres) steam 7 water quality / Quality salt residue / Residual sulphate content / Conte Nt carbonate content / Content mineral-free water quality / Quality citrate content / Content 3), continue to observe the vibration of the air compressor for 1 minute, after the abnormality, adjust the pressure to 10Bai' (pressure gauge 3), observe empty After the vibration of the press is abnormal, it is cleaned for 12 minutes. If the vibration is abnormal during the cleaning process, the pump will be stopped immediately. 4. After the third-stage impeller is cleaned, the three-stage spray valve will be closed to stop the cleaning; the pressure of the entire secondary spray valve is 4Bar (pressure gauge 2), observe the vibration of the air compressor for 1 minute. After no abnormality, adjust the secondary spray pressure to 6Bai' (pressure gauge 2), and then observe the vibration of the air compressor for 1 minute, no abnormality. Adjust the pressure to 8Bai' (pressure gauge 2), continue to observe the vibration of the air compressor for 1 minute, adjust the pressure to 10Bai' (pressure gauge 2) after no abnormality, observe the vibration of the air compressor at all levels, and then clean 18 minutes, if the vibration is abnormal during the cleaning process, stop the pump immediately; 6. After the second impeller is cleaned, close the secondary spray valve and stop the cleaning; good; drain valve, close the valve after the water is drained; movement, temperature, pressure , flow and other parameters.

V. Impeller online cleaning water quality requirements: The clean water used in the impeller online cleaning device should be strictly in accordance with Table 1; it is very important to use the above standard water purification to ensure that the water does not contain chloride. Do not use turbine condensate (flow from the steam trap) Water), unsuitable water will cause foreign impurities to adhere to the impeller, resulting in secondary impregnation of the impeller.

Sixth, cleaning verification: Taiwan GT087L3K1 air compressor installed impeller online cleaning device, after nearly half a year of use, the effect is good, we use the opportunity of maintenance to open the air compressor secondary pipeline inspection impeller, the surface is very clean, without any accumulation of ash See the picture below: There is no high vibration at all levels during the operation.

The application of the impeller online cleaning system plays an important role in eliminating the ash accumulation of the air compressor impeller, reducing the vibration of the air compressor, and ensuring the safe and stable operation of the air compressor, laying a solid foundation for our future equipment maintenance and maintenance. S

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