Separation type intercooling control method of cooling water system of diesel locomotive engine

A technology for cooling water systems and internal combustion locomotives, which is applied to the control of coolant flow, engine cooling, internal combustion piston engines, etc. It can solve the problems that the design method cannot meet the requirements, and achieve the effect of improving environmental protection requirements and improving performance

Inactive Publication Date: 2016-11-23
CRRC DALIAN CO LTD
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  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

The issues of energy saving and environmental protection are gradually put on the agenda. It is obvious that the design methods of the existing technology can no longer meet the requirements for the concept of energy saving and environmental protection.

Method used

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  • Separation type intercooling control method of cooling water system of diesel locomotive engine
  • Separation type intercooling control method of cooling water system of diesel locomotive engine

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Embodiment Construction

[0014] Now combined with figure 1 And figure 2 To further explain the invention, the highest ambient temperature rarely occurs in the actual use of locomotives and the locomotive is not always working under full load. The lower the ambient temperature or the lower the power of the locomotive, the heat dissipation capacity of the high-temperature radiator and the inter-cooling radiator The greater the margin. At this time, the heat dissipation capacity of the high-temperature cooling water is obviously excessive. If this excess heat dissipation capacity can be applied to the intercooling water system, it will obviously play a positive role in improving the performance of the diesel engine and reducing emissions.

[0015] The invention is applied to the cooling water system of a turbocharged diesel engine, and defines a cooling water system that has the ability to use a part of the cooling capacity to enhance the intake air of the intercooler when the cooling capacity of the cooli...

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Abstract

The invention discloses a separation type intercooling control method of a cooling water system of a diesel locomotive engine. The separation type intercooling control method comprises two cooling water loops, namely a high-temperature cooling water loop and an intercooling water loop; the high-temperature cooling water loop comprises a high-temperature water pump, a diesel engine and a high-temperature heat radiator; the intercooling water loop comprises an intercooling water pump, an intercooling device and an intercooling heat radiator; the high-temperature cooling water loop and the intercooling water loop are connected through a valve A and a valve B; two ends of the valve A are connected with an outlet of the intercooling water pump and an inlet of the high-temperature water pump respectively; two ends of the valve B are connected with an outlet of the high-temperature water pump and an inlet of the intercooling water pump respectively; the valve A is controlled by a valve controller A and the valve B is controlled by a valve controller B; a control computer outputs a control signal to the valve controller A and the valve controller B; a temperature sensor is used for detecting a high-temperature outlet water temperature T of the diesel engine and transmitting a detected signal to the control computer; the separation type intercooling control method has an active effect on improvement of performances of the diesel engine and emission reduction.

Description

Technical field [0001] The invention relates to the control field of diesel engine cooling water systems for diesel locomotives, in particular to a separation type intercooling control method for the cooling water system of diesel locomotives diesel engines. Background technique [0002] The cooling water system of diesel locomotive turbocharged diesel engine is divided into high temperature cooling water system and intercooling water system (intercooling water system is also called low temperature cooling water system). The high temperature cooling water system and the intercooling water system are two completely independent cooling water circulation systems. The radiator of the cooling water system is designed separately through two completely independent circulation systems. After the diesel engine starts, the high-temperature water pump and the inter-cooling water pump start to work. The water pump feeds the cooling water into the diesel engine's water inlet pipe, and the cool...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F01P7/14F02B29/04
CPCF01P7/14F01P2007/146F02B29/0443Y02T10/12
Inventor 陆洋董志忠陶红杰韩亮高俊帅王小博
Owner CRRC DALIAN CO LTD
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