Issues to be mindful of regarding the plunger of ultra-high pressure compressors during operation
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Let’s discuss the issues that should be taken into account regarding the plungers of ultra-high pressure compressors during operation, as well as the common faults that can occur ~ What issues need to be considered when operating ultra-high pressure compressors used in the production of high-pressure polyethylene? 1. The piston inside adopts a plunger structure. High precision is required during the back-and-forth movement. What are the specific standards in this area generally? 2. Which ** are the ultra-high pressure compressors that are known to people today? Are there any domestic products used in our country’s production lines? 3. Which components are most prone to wear and tear inside, and how often do they need to be replaced? How long does a plunger generally last? 4. What are the common causes of damaged compressor pistons? Corrosion, stress. . . . ? Everyone is welcome to share their insights! ~ This post was last edited by li*ngya on 2009-3-24 16:52.]
I’m not sure about the standard; our unit uses Japanese ones, with a maximum pressure of over 2000 kilograms. The plunger generally doesn’t need to be replaced; at least we’ve never had to replace it. The combination valve and packing need to be replaced frequently; the packing has to be ground, and the valve core of the combination valve needs to be replaced, etc.
Our equipment uses Nuovo Pignone, an Italian company now part of the General Motors group. The parts that most often fail are the gaskets and the intake and exhaust valves; the cylinders generally need to be replaced every three months!
1. The plunger has high requirements regarding its swinging range; it is important to regularly check the size of the plunger, as well as its surface finish and any scratches. 2. In China, the main manufacturers of secondary compressors for high-pressure polyethylene are Buka and Nippon Polychem, with Buka holding a clear advantage. There are no domestic manufacturers that produce complete units; components such as high/low pressure packing and central combination valves are also not available domestically. The specific replacement and repair time is quite complex. The plunger has a long service life