An intensive cooling system for construction machinery

Abstract

The invention relates to an intensive type heat-dissipating method for engineering machinery, in particular to an intensive type heat-dissipating system for the engineering machinery. The intensive type heat-dissipating system comprises a system heat collection device, a single radiator, a cooling fan and a vehicle coolant driving system. The system heat collection device is divided into single spaces through separating boards in a closed space. A plurality of vehicle system heat source radiators formed by U-shaped pipe bundle type heat exchange structures are arranged in the single spaces. Heat of each heat source system can be transmitted to coolants based on flow of the coolants. The single radiator has the structural features of high heat dissipating efficiency, and is suitable for space limitation of an engine compartment. The cooling fan is an axial flow fan which is driven by a hydraulic motor to rotate. The vehicle coolant driving system is formed by a driving oil pump, a control valve, a driving motor and a pipeline system. The intensive type heat-dissipating system is suitable for an efficient heat dissipating method with requirements for multiple heat source systems and large heat dissipating capacity in the engineering machinery, ensures requirements for the temperature state of the various systems in the engineering machinery, and improves operation efficiency and reliability of vehicles.

Description

technical field [0001] The invention relates to an intensive heat dissipation method of a construction machinery heat dissipation system, in particular to an efficient heat dissipation method suitable for multi-heat source systems of construction machinery and requiring large heat dissipation. Background technique [0002] The heat dissipation system of construction machinery is a key system to ensure the temperature requirements of the engine cooling system in the vehicle system, the engine charge air cooling requirements, the transmission system temperature requirements, the hydraulic system temperature requirements, and the cab air conditioning system cooling temperature requirements. With the continuous improvement of vehicle system energy saving and emission requirements, the application of engine exhaust gas recirculation system (ie EGR) and the limitation of brake fluid temperature in wet hydraulic braking system have increased the load of vehicle cooling system. Heat...

AI Technical Summary

Problems solved by technology

However, the traditional heat dissipation method combined with a single fan and multiple radiators is limited by the fan size characteristics, driving characteristics, noise restrictions, limited by the combination of multiple radiators, and limited by the space form of the power cabin, so it is difficult to balance efficiently and reliably Operating temperature requirements for each system of the vehicle

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