Water-cooled diesel generator set cooling system for sand pump vessel

Abstract

The invention belongs to the technical field of machinery, and relates to a water-cooled diesel generator set cooling system for a sand pump vessel. The water-cooled diesel generator set cooling system for the sand pump vessel is provided with a seawater pump; the output end of the external seawater pump communicates with a seawater inlet III in a diesel engine, and a belt pulley is arranged at the free end of the diesel engine; the external seawater pump is driven through the diesel engine, and outboard seawater is pumped into the cooling system; the seawater entering the diesel engine is divided into two parts through a water distribution structure, one part is distributed into a generator seawater pipeline through the water distribution structure, and the other part enters the seawater pipeline of the diesel engine; and after an intercooler is cooled, the seawater flows out of the diesel engine and enters a shell-and-tube heat exchanger, meanwhile, high-temperature fresh water of the diesel engine also flows out of the diesel engine to enter the shell-and-tube heat exchanger, and the high-temperature fresh water is cooled in the shell-and-tube heat exchanger and then returns to the diesel engine. According to the water-cooled diesel generator set cooling system for the sand pump vessel, the adaptability of a generator set in the environments with large silt such as inland rivers and offshore is greatly improved.

Description

technical field [0001] The invention belongs to the technical field of machinery, and relates to a cooling system of a water-cooled diesel generator set for a sand suction ship. Background technique [0002] The traditional marine diesel generator set adopts high and low temperature water double cycle cooling system, and the low temperature cooling water directly uses seawater or inland river water as the cooling medium. Seawater or river water is sucked into the low-temperature pipeline of the diesel engine by the seawater pump of the diesel engine, then cools the air cooler, heat exchanger, etc. in turn, and finally flows out of the diesel engine. [0003] However, sand suction boats are often used in inland rivers and offshore seas. During sand suction operations, the sediment content of river water and sea water rises sharply. After a large amount of sand enters the diesel engine, it is easy to cause blockage of the diesel engine plate heat exchanger and sea water pump, ...

AI Technical Summary

Problems solved by technology

[0003] However, sand suction boats are often used in inland rivers and offshore seas. During sand suction operations, the sediment content of river water and sea water rises sharply. After a large amount of sand enters the diesel engine, it is easy to cause blockage of the diesel engine plate heat exchanger and sea water pump, reducing the exchange rate. At the same time, the maintenance and replacement cycle of heat exchanger and sea water pump is shortened, which seriously affects the performance of diesel engine

In addition, when the water-cooled motor is used in the generator set, the diesel engine also needs to provide cooling water for the water-cooled motor. The flow rate of the seawater pump on the original diesel engine body can no longer meet the water separation requirements.

The traditional marine diesel generator set cooling system scheme can no longer meet the operating environment of sand suction ships

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