Ship maint
Ship maint
Ship maintenance services
Vessels and their equipment for maintenance、Technical activities for repair and maintenance，Designed to keep vessels in good technical condition，Ensuring navigation safety and extending service life。
What: locate and repair leaks (welding, punching, replacing pipe sections), resolve blockages (unclogging, chemical cleaning), replace damaged valves, joints, expansion joints, etc. features: responsive emergency repair, quick recovery of system functions, especially key to core system pipelines such as mainframe and boiler.
Cleaning: high pressure fresh water rinse to remove salt, sludge, grease and loose old coating. rust removal: use sandblasting (shot blasting/sanding), power tools, chemical cleaning and other methods to treat the steel to the specified cleanliness standard (such as sa2.5, st3 grade), and form a certain roughness to enhance the coating adhesion. environmental control: monitor and control the temperature, humidity and dew point of steel plate in the construction environment to ensure that it meets the requirements of paint technical specifications.
Repair mechanical equipment failures, electrical system problems, pipeline leaks, etc. recorded in this voyage report. solve all kinds of technical problems that the crew can not solve by themselves in daily maintenance.
Visual inspection: check the deck plate, aggregate (beam, longitudinal bone), hatch coaming, etc. for rust, crack, deformation and depression. thickness measurement and non-destructive testing: use ultrasonic thickness gauge to measure the thickness of steel plate, and use magnetic particle inspection (mt) and ultrasonic inspection (ut) to check the cracks and fatigue damage of welds and base metals. condition assessment: based on the inspection results, assess the degree of corrosion, loss of structural strength, and develop a maintenance level plan.
Regular inspection and maintenance: board the ship for equipment cleaning, inspection, fastening, insulation testing and performance debugging as planned. maintenance plan formulation: according to the equipment manual and specifications, tailor the maintenance cycle and plan of the whole ships electrical equipment for customers. spare parts management and supply: provide original or certified spare parts, and assist in establishing reasonable spare parts inventory.
Contents: divers or robots to inspect, clean up (marine life, entanglements). features: ships do not need to be docked, fast and convenient.
Core objective: to provide all-round professional technical support to ensure the continuous, reliable and efficient operation of the ships main propulsion engine (mainly diesel engine). its core goals are to prevent failures, ensure navigation and control costs.
Content: after the ship is docked, comprehensive inspection of the underwater hull, high-pressure fresh water flushing, rust removal (sandblasting/polishing), painting (antifouling paint/anti-corrosion paint), average repair, submarine valve box and maritime parts maintenance are carried out. features: the most comprehensive and critical statutory and in-depth maintenance is the core link of hull maintenance.
Contents: water treatment and testing (core, anti-scaling and corrosion), burner commissioning and maintenance, safety valve/alarm testing, soot blowing, sewage discharge, routine cleaning. features: periodic prevention work is the foundation to ensure the safe and economical operation of the boiler.
Contents: comprehensive inspection, high-pressure cleaning, sandblasting and rust removal, anti-corrosion/anti-fouling coating replacement, average repair, hull thickness measurement, cathodic protection (zinc block) replacement, sea valve/submarine door maintenance. features: this is the core project that can only be carried out in the dock, and it is the fundamental purpose of dock repair.
Complete regular but short-time maintenance, such as filter cleaning, valve packing replacement, local rust removal and paint touch-up, etc. supplement fuels, lubricants and various chemicals
In view of the defects found by the master/management companys pre-inspection, make urgent rectification before sailing, pass possible psc inspections with high standards, and avoid being stranded.
Main and auxiliary machines: deal with hidden dangers found in the inspection of hanging cylinders, replace spare parts, clean superchargers, etc. deck machinery: repair and maintain hydraulic systems, brakes and control systems of windlasses, cable winches, cranes/cranes. navigation and safety equipment: emergency repair of faults such as radar, gps, ais, gmdss equipment, fire alarm system, etc.
Contents: partial or overall pipeline replacement, material upgrade (such as replacement with corrosion-resistant materials), optimization of pipeline layout to adapt to new equipment or new regulations. features: improvement engineering to improve system reliability and compliance.
Content: carry out thickness measurement, non-destructive testing and pressure/tightness test on key pipelines (such as fuel oil high pressure pipe, steam pipe and hydraulic pipe) according to the specifications and requirements of classification society. features: mandatory safety verification to ensure pipeline pressure-bearing capacity and structural safety.
System upgrade and installation: integration and debugging of electric propulsion system, power station management system and digital monitoring system. professional and technical training: provide practical training for crew members on electrical equipment operation, basic maintenance and fault identification. condition assessment and life prediction: health assessment of critical equipment using professional instruments (e.g. thermal imaging, insulation diagnostics).
Remote technical support: provide fault diagnosis guidance 7x24 hours a day to assist crew in preliminary investigation and emergency recovery. on-site emergency repair service: dispatch engineers to board the ship or quickly locate and repair faults at the port to minimize downtime. fault root cause analysis: provide detailed fault reports and improvement suggestions to prevent the recurrence of problems.
Statutory and classification society inspection support: assist in completing the electrical equipment inspection during annual inspection, special inspection and dock repair to ensure one-time pass. equipment upgrade and transformation: provide electrical system transformation scheme and construction to meet new specifications (such as ballast water treatment, desulfurization tower, energy efficiency requirements). certificate and document management: maintain and update electrical equipment certificates, drawings and maintenance records.
Hatch cover repair: repair or replace rollers, sealant strips, hold-down devices, hydraulic systems to ensure weathertightness. deck dressing and coating overhaul: remove old dressing and coating, re-surface treatment (sandblasting to sa2.5 level), spray high performance anti-corrosion paint or lay fire-resistant and heat-insulating dressing. partial structural modification: deck opening, strengthening and structural modification for the installation of new equipment (such as lashing bridges, cranes, environmental protection equipment).
Local plate replacement: replace deck steel plates exceeding code allowable limits due to severe corrosion or damage. structural reinforcement: repair welding stiffeners or sheathing panels in areas with insufficient strength (such as under the base of heavy equipment and corners of hatches). crack repair: discovered fatigue cracks are sanded, grooved, re-welded, and structural details are improved to reduce stress concentrations. dent correction: for local deformation caused by collision or falling of heavy objects, pyrotechnical correction or cold working repair. anti-slip treatment: repair or re-lay deck anti-slip coating, anti-slip sand and anti-slip strips. maintenance of ancillary facilities: repair or replace mooring equipment (fairleads, cable piles) bases, railings, ladders, watertight doors, etc.
Primer: a high-performance epoxy anti-rust primer is typically sprayed within hours of sandblasting to create an anti-corrosion barrier that is tightly bonded to the steel plate. intermediate paint: provides film thickness, increases shielding, and connects primer and topcoat. top coats: provides ultimate protection and appearance color with weather resistance, chemical resistance, aesthetics and more. anti-fouling paint (specially used under the waterline of the hull): it is painted when docking. it prevents marine organisms from adhering to it through controlled release technology, reduces navigation resistance and saves fuel.
Deck/channel: coated with a high adhesion, abrasion resistant, non-slip deck paint. cabin: according to different environments such as cargo tanks (such as ballast tanks, cargo oil tanks, chemical tanks) and living areas, special coatings (such as pure epoxy, phenolic epoxy, alkyd paint, etc.) that meet imo standards are painted. repair & leveling: pre-paint and fine repair local damage, welds, corners.
Contents: repair furnace pipe/smoke pipe leakage, replace damaged furnace walls, plugs, valves, and repair burners, control systems, feed water pumps and other ancillary equipment. features: emergency response, rapid restoration of steam supply, ensuring ship power and living needs.
Contents: flue gas analysis, adjusting air-fuel ratio, thermal efficiency evaluation, providing energy-saving improvement suggestions. features: performance enhancement service, which directly helps ships reduce fuel consumption.
Contents: open the boiler, perform internal inspection (furnace, water pipe, smoke pipe, steam drum), chemical/mechanical descaling, repair of furnace refractory layer, full cleaning of water side/fire side. features: in-depth maintenance required by statutory requirements, witnessed by surveyors, to solve core problems such as fouling and corrosion.
Contents: partial derust painting of hull above waterline, maintenance of deck and superstructure, internal inspection and maintenance of ballast tanks/side tanks. features: planned maintenance, making full use of ship operation gaps, and extending dock repair cycle.
Contents: including hull thickness measurement, weld non-destructive testing, coating condition assessment, structural deformation measurement. features: scientific decision-making basis, accurate assessment of hull health and formulation of maintenance plans.
Contents: hull inspection by divers or underwater vehicle (rov), high-definition video/photography, biological attachment cleaning, local cathodic protection (zinc block/sacrificial anode) inspection and replacement. features: no docking required, saving downtime, for routine inspection, cleaning and specific inspection.
Content: under the on-site witness of the surveyor, complete the special inspection/mid-term inspection items of the hull, rudder system, shafting system, etc., and obtain the corresponding certificates. features: meet the mandatory requirements of classification societies and regulations, which is the basis for the legality of ship operation.
Contents: installation or replacement of hull (e.g. depth sounder, log probe), inspection and shift of anchor chain/anchor, repair of outboard discharge valve/side accessories. features: resolves all equipment issues outside the hull, near the waterline.
Contents: propeller inspection/polishing/repair/dynamic balancing, tail shaft withdrawal detection, tail shaft seal/bearing replacement, rudder system inspection and repair, side thruster maintenance. features: critical opportunity for in-depth disassembly overhaul of vessel dynamics and maneuverability.
What: provides genuine or certified spare parts supply, as well as remote technical guidance, crew training, drawings and solution consultation. features: powerful background support system is the guarantee of efficient maintenance.
Content: quick remote or on-site diagnosis, emergency repair and spare parts replacement for sudden faults (such as shutdown, cylinder knock, abnormal exhaust temperature, etc.). features: quick response, restore power in the shortest time, and reduce loss of suspension.
Content: carry out cylinder inspection, piston/cylinder liner/bearing bush and other key components inspection and replacement, exhaust system cleaning, turbocharger maintenance, etc. according to operating hours or maintenance cycle. features: planned in-depth maintenance to restore host performance and prevent major failures.
Content: after the ship is docked, comprehensive inspection, measurement, correction, welding repair, polishing and balancing are carried out. features: in-depth maintenance of the core, restoring the propeller to the best condition.
Content: carry out emergency repairs for sudden damage such as collision and fracture. features: quick response, with the primary goal of restoring navigation capability.
Contents: routine inspection (check corrosion, vibration, support, insulation), valve and flange maintenance, system cleaning and blowing, filter cleaning and replacement. features: active maintenance is the basis for preventing system failure.
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