中文版
How to check the piston ring of ship machinery accessories? The performance of the piston ring directly affects the performance of the cylinder and the diesel engine. Therefore, the piston ring should be repaired regularly. It is a direct, simple and economical method to check the piston ring and other parts through the scavenge port to obtain the working state of the cylinder during the operation of the diesel engine.
Inspection method for piston ring of ship machinery accessories:
1. Prepare for a period of time after the diesel engine stops, remove the cover plate of the cylinder observation hole on the control side of the scavenge box and clean the observation hole. With the aid of a long handle strong light bulb into the cylinder for observation. This work should be carried out with the cooperation of two people, one to observe and one to record the observation of the piston ring of the ship engine accessories.
2. The cooling water or cooling oil should be kept circulating during the inspection, so as to check whether the piston ring of the ship machinery accessories leaks; Close the main starting valve and starting air and engage the turning machine; Turn the piston to BDC and start checking from this position. In order to observe clearly and judge correctly, the working surface of the parts must be wiped clean.
3. When observing the piston ring of the ship machinery accessories, the piston is turned up to the lower part of the scavenging port, and the cylinder wall and piston head are checked from the observation hole. When the piston goes up through the scavenge port, clean and inspect the piston head, piston ring and piston skirt working surfaces; The piston continues up to check the lower cylinder liner and the piston rod.
