Overhaul of GEA screw compressor imported from Germany (comparable to York)
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Germany's GEA refrigeration industrial refrigeration mainly includes: SSP1 screw compressor, SP1 single-stage screw compressor unit, SP2 two-stage screw compressor unit, SPDuo double-head screw compressor unit, Cascade cascade ultra-low temperature unit, are widely used in the petrochemical industry. GEA screw compressor is finished using the most advanced German technology. The design pressure of the compressor shell is 2.8MPA, and the maximum strength pressure can reach 4.3MPA. Compressor 5: 6 yin and yang rotor tooth ratio, cutting-edge precise processing technology makes the pressure difference between adjacent rotor cavities of the rotor smaller, and the volumetric efficiency is high! The internal volume ratio is adjustable, so that the internal compression ratio of the unit can be matched with the outside of the unit at any time, effectively preventing losses caused by over- and under-compression. The shaft seal is at the low-pressure end, coupled with the control accuracy, the overall compressor is reliable and stable, and its performance far exceeds that of domestically produced compressors. Ellen GEA Grasso screw compressor: The rotor was locked with the wall. We overhauled the compressor, cleaned the inside of the system and the heat exchanger, and conducted an overall overhaul of the circuit. The GEA screw compressor started up and ran stably.
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If not, then I'm here to apologize to you, I'm sorry.
I work in maintenance, I hope you can read what I posted before commenting, because writing this is not easy.
I'm curious, since it's a maintenance company, why don't you post a complete set of maintenance pictures, just the appearance? Is it a synchronized gear, or is it not a synchronized gear? What model of bearing? Back-to-back or face-to-face installation? What kind of bearing is on the other end? (I have repaired one machine and the other end has a sliding bearing). The most important step in the maintenance of this equipment is that the back of the impeller cannot collide with your picture 5, that is, the back clearance of the blade needs to be controlled. How many levels can you control? What's the total amount? Where can I add or subtract pads to control this gap? I hope those doing maintenance work on the front line, especially those who have the opportunity to take photos on site, can share it with others and learn from it. * study * . There are actually a lot of pictures of the appearance and hoisting process that can be found on Baidu, but they are not very meaningful.
This post was last edited by YORK Industrial Freezing on 2017-6-6 00:48. You can check out the yfg compressor overhaul I posted before. It is more detailed. I have offended you in some places. I apologize to you. If you have any questions, feel free to ask. You can’t find gea screw machines online, but all you can find are piston machines.
Thank you for your hard work. This is a GEA Grasso screw compressor. Is it used in refrigeration systems? This compressor has no gears, it is a yin and yang screw rotor. There is no impeller, and it is not a centrifuge!
What a post, I feel like I’m spraying. GEA refrigeration screw has gone out of business, and the technicians have been taken over by Howden.