Ship repairs For ships that have been out of service, repairs to restore seaworthiness and hull strength are required, such as repairs to the wreck of sunken ships and fire ships. This type of repair project is huge, requires huge amounts of money, has a long ship repair period, and has poor economic results. It is now rare. Diesel engine repair

(2) Organization and management of ship repair

1. Establish ship repair system-maintenance, management and repair system

Take "precautionary measures" for ships, that is, maintenance by the crew during daily operations. The better the maintenance, the more effective the preventive measures, the smaller the scope of the repair works; conversely, if the "repair measures" are appropriate, the quality of the ship will be repaired. High, the repair cycle is short, and the longer it can ensure that the repaired ship maintains normal technical conditions in operation, the easier it will be for the crew to perform maintenance.

2. Pay attention to ship repair technology, shorten ship repair cycle and improve economic efficiency.

(1) Preliminarily check and determine the scope of the project to be repaired, fill out the ship repair list, and make sure to complete all the necessary preparations for the repair project in the shortest time;

(2) Establish a normal and appropriate relationship among ship-using units, ship-repairing units, and surveying units to ensure the quality and speed of ship-repairing;

(3) Fixed-point ship repairs, such as repairs of ships on the Yangtze River in shipyards along the Yangtze River;

(4) Carry out ship repairs in accordance with the "Technical Standards for Hull Repairs" promulgated by the Ministry of Communications, and select the most reasonable ship repair plan and ship repair technology based on the specific conditions of each factory.

(3) Main tasks of ship repair

1. Preparatory work: Remove the hull components that need to be repaired, and remove the machinery, piping, furniture, and equipment that hinder the work.

2. The basic work is the repair work to directly eliminate the defects of the hull, that is, repair or re-make the dismantled parts, such as parts and components, and then assemble them. After installation, a test is needed to check whether the performance has been restored, improved or improved.

3. Auxiliary work provides convenient work for preparation work and basic work, including erecting scaffolding for the work site; connecting power and energy such as oxygen, alkyne, wind, electricity, water, etc.; material preparation; lifting and transportation during ship repair; repairing Clean up the site after completion.