The valve plates and cushion plates of reciprocating compressors tend to break easily
Thread Content
This post was last edited by xbb0520 on 2017-7-18 at 10:14. Recently, the five-stage gas valves in compressors tend to fail, mainly due to the breakage of the valve plates and cushioning elements; the duration of operation before failure is as short as 2 days, with a maximum of 15 days. Excluding oil-water issues and gas problems, please help analyze what could be the cause. In this section, the working pressure is around 7.0 MPa at the inlet and around 15 MPa at the outlet; the compressing medium is carbon dioxide. If there are any good valve manufacturers, you can also recommend them.
You have quite a lot of series here; indeed, the pressure is pretty high. Have you consulted the valve manufacturer? For example, Holbig
Consider the temperature issue: high temperatures can lead to scale formation, causing uneven stress on the valve discs.
Material, measure the dimensions; perhaps the size is not appropriate, there is a deviation
Maintenance is not as simple as just replacing a part; it’s best to carefully analyze whether there are any issues with the manufacturing process. Sometimes, the frequent failure of a part is merely a superficial symptom – it’s necessary to look beyond the surface to understand the underlying cause in order to resolve the problem properly.
Is the fifth section a series-connected cylinder? Is the valve disc made of metal? Try using PEEK instead
Both the valve disc and the buffer pad are brand new
Yes, in series configuration – can PEEK be used in the high-temperature and high-pressure sections?
Judging from the disassembly, there is no issue with buildup; you can take a look at the images I just uploaded