Low-low-sulfur oil cooling system

Abstract

The invention relates to a low-low-sulfur oil cooling system which comprises a ship water chilling unit, a refrigerant water pump module and a water and oil heat exchanging system, wherein the ship water chilling unit is connected with the refrigerant water pump module for providing low-temperature refrigerant water, and the refrigerant water pump module is connected with the water and oil heat exchanging system for realizing that oil in the water and oil heat exchanging system is cooled by using the low-temperature refrigerant water. The low-low-sulfur oil and fuel oil temperature refrigerant water with sulfur content being less than 0.1 percent is provided for water and oil heat exchange by using the ship water chilling unit, the fuel temperature can be effectively reduced, and the fuel viscosity is improved. The system has the advantages of simple structure, stability of operation, safety and reliability and convenience for maintenance, and can provide low-sulfur with high viscosity and good lubricating performance; and the problem that a ship diesel engine and a fuel oil supply system are easily worn by directly using the low-sulfur fuel is effectively solved.

Description

technical field [0001] The invention relates to a sulfur oil cooling system, in particular to a system for cooling low and low sulfur oil with a sulfur content less than 0.1%. Background technique [0002] The international standards on sulfide emissions from ships are becoming increasingly stringent. According to the requirements of the EU standard 2005 / 33 / EC, starting from January 1, 2010, all ships berthing in EU ports for more than 2 hours shall not use fuel oil with a sulfur content exceeding 0.1%; Since January 1, 2012, California, the United States shall not use fuel oil with a sulfur content exceeding 0.1% in waters within 24 nautical miles from the California coastline; the amendment to Annex VI of the MARPOL Convention clearly requires that: since January 1, 2015 The sulfur content of fuel oil used by ships in sulfur emission control areas shall not exceed 0.1%. At present, the vast majority of ships use high-sulfur heavy sulfur fuel oil. The diesel engine and fue...

AI Technical Summary

Problems solved by technology

At present, the vast majority of ships use high-sulfur heavy sulfur fuel oil. The diesel engine and fuel supply system are designed according to the viscosity and lubricating performance of traditional heavy fuel oil. Reduced lubricating performance of fuel oil increases the wear of diesel engine and oil supply system, which easily leads to hidden dangers in operation and ship safety

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