Cracking of the reciprocating compressor cylinder liner
Thread Content
Today, a combustible gas was detected during the inspection of the cylinder head cover. After opening the cylinder head cover, cracks were found in the cylinder liner. What caused these cracks? The cracks were axial in nature, and after using dyeing, 8 cracks were identified.
Also, the coaxiality of the installation is not good
It might be due to factors such as material or temperature
It depends on the situation. If it’s detected during normal operation, it’s best to check the operating conditions, such as vibration levels, temperature, and other parameters. If it has just been overhauled, then the issues should be looked for in the process of maintenance. Conduct thorough analysis; to solve problems, address the root causes and avoid carelessness. Wish it gets fixed soon
1. Cracks remaining from casting. 2. Poor separation of liquids from materials causes gas to carry liquid, leading to cylinder damage. A cooling system failure caused the cylinder block to overheat.
Material issues, misalignment of the piston and cylinder during installation, presence of liquid, etc
Are there any issues with the roundness of the cylinder liner and the cylinder block? Stress exists after the cylinder liner is installed, and operational vibrations accelerate the formation of cracks
It was just overhauled a month ago, and no attention was paid to this area during the overhaul. With soapy water, no bubbles formed, indicating good airtightness. Recently, the company provided gas detectors, which detected this leak; still, no bubbles appeared when using soapy water. After opening it and cleaning it, cracks were seen on the edge of the cylinder sleeve