Power-distributed diesel motor train unit cooling system based on heat treatment system

A technology of thermal management system and cooling system, applied in the direction of engine cooling, liquid cooling, coolant flow control, etc., can solve problems such as difficulty in starting, unable to start, etc., to reduce energy waste, simple and convenient installation, and save space and size and the effect of weight

Active Publication Date: 2015-01-07
CRRC DALIAN INST CO LTD
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AI Technical Summary

Problems solved by technology

Different grades of hydraulic oil have their own optimum working viscosity and minimum pour point temperature. At this temperature, the appropriate hydraulic oil that meets the standards will be difficult to start or unable to start when the external ambient temperature is low. problem, the application of the EMU will be limited to a specific external environment

Method used

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  • Power-distributed diesel motor train unit cooling system based on heat treatment system
  • Power-distributed diesel motor train unit cooling system based on heat treatment system
  • Power-distributed diesel motor train unit cooling system based on heat treatment system

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Embodiment Construction

[0018] now attached figure 1 to attach Figure 5 , the present invention is further described:

[0019] 1. The overall structure of the cooling system see figure 2 , the cooling system of this invention is composed of water cooling system, charge air cooling system, hydraulic oil cooling system, cooling fan drive system, thermal management system, etc. All cooling system components are integrated on one frame, and the frame is also integrated Engine 4, generator, control system and other components are hoisted under the frame of the EMU.

[0020] Engine 4 cooling water system mainly includes water radiator 11, expansion tank 6, water temperature control valve 12, generator bypass pipeline 13, cooling water pipeline 30; water temperature control valve 12 controls whether cooling water flows according to the set temperature The water jacket of the engine 4 is cooled by the water radiator 11 , and the cooling water flowing through the generator bypass pipeline 13 is cooled by...

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Abstract

The invention discloses a power-distributed diesel motor train unit cooling system based on a heat treatment system. A water cooling system, a supercharged air cooling system, a hydraulic oil cooling system, a cooling fan drive system and a heat treatment system are integrated to form a power pack; the water cooling system is used for cooling a water jacket of an engine (4) and a permanent magnet generator (14); the supercharged air cooling system is used for cooling the supercharged air of the engine (4); the hydraulic oil cooling system is used for cooling a fan drive system; the cooling fan drive system is used for controlling the rotating speed of a fan; the heat treatment system is used for carrying out low-temperature pre-heating and flow direction control on cooling water and hydraulic oil. The power-distributed diesel motor train unit cooling system based on the heat treatment system is easy and convenient to mount, enables the space size and weight to be reduced, enables the energy waste to be reduced, enables the engine to always locate at a good working temperature and effectively prolongs the service life of such components as engine and generator, and the application of the motor train unit is not restricted by the outside environment.

Description

technical field [0001] The invention relates to a cooling system for a diesel train set, in particular to a power distributed cooling system for a diesel train set based on a thermal management system. Background technique [0002] The EMU is an efficient means of transportation for intercity and suburban railways to achieve small formation and high density. Its formation is flexible, convenient, fast, safe, reliable and comfortable, and is favored by railway transportation and urban rail transit transportation in various countries around the world. Diesel EMUs are EMUs powered by diesel engines, and are mainly used for intercity transportation on non-electrified railways. Compared with the power centralized EMU, the power decentralized EMU is the most common EMU at home and abroad. The cooling system is an important part of the traction power package of the DMU. Its function is to ensure that the diesel engine is always at the best working temperature. The cooling system o...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F01P7/04F01P7/16B61C17/00
CPCF01P3/12F01P7/16F01P7/04B61C17/00
Inventor 周美旺王博李海伦
Owner CRRC DALIAN INST CO LTD
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