Automatic water discharge system for intercooler of marine diesel engine

Abstract

The invention discloses an automatic dewatering system for an intercooler of a diesel engine for ships. The automatic dewatering system for the intercooler comprises an air outlet end cover of the intercooler and an automatic dewatering valve, wherein the automatic dewatering valve comprises a valve body and a temperature sensor with double metal spiral springs, the valve body can be arranged at the bottom of the air outlet end cover of the intercooler in a rotating penetration manner through a central shaft of the valve body, and a plurality of valve dewatering holes corresponding to dewatering holes of the air outlet end cover are formed in the peripheral direction in the valve body; the tail end of the outer ring of the temperature sensor with the double metal spiral springs is fixed to the air outlet end cover of the intercooler. The automatic dewatering system for the intercooler does not need frequent dewatering maintenance or operation, so that the maintenance intensity is lowered, the situation of condensed water deposition in the intercooler is avoided, and the normal use of an engine is guaranteed.

Description

technical field [0001] The invention relates to the field of engines, in particular to an automatic water discharge system for an intercooler of a marine diesel engine. Background technique [0002] As we all know, under normal circumstances, when the intercooler of a diesel engine is cooled by seawater (marine diesel engine) or fresh water, it is necessary to reduce the supercharged high-temperature and high-pressure gas to the temperature suitable for the diesel engine to work. During the cooling process, water vapor in the intake air will be precipitated and condensed It turns into condensed water and deposits in the intercooler. The deposited condensed water hinders the flow cross section and flow resistance of the intake air after supercharging, resulting in a decrease in the cooling capacity of the intercooler, an increase in the intake resistance, and the cooling of the intercooler The capacity is also weakened, and when there is enough condensate, it will overflow th...

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Problems solved by technology

[0003] At present, manual valves are usually used for the condensate of the intercooler, and the water needs to be released during regular maintenance. However, during the operation of the diesel engine, a large amount of condensed water has often accumulated inside the intercooler. Since the condensed water cannot be monitored and discharged at all times, it will affect The cooling effect of the intercooler will increase the air intake resistance, and even cause the cylinder to work abnormally or even the diesel engine to stall after entering the cylinder. Especially in low temperature and cold areas in winter, if the condensed water is not released in time, it is easy to cause serious failures such as freezing cracks in the intercooler

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