Boiling heat exchange cooling device for hydrodynamic retarder

Abstract

The invention relates to a boiling heat exchange cooling device for a hydrodynamic retarder. The boiling heat exchange cooling device for the hydrodynamic retarder comprises a water tank, a condenser and an interlayer, wherein the interlayer is arranged on the outer wall of a fixed pulley of the hydrodynamic retarder; an oil flow channel and a spiral cooling flow channel are formed in the interlayer; an inlet of the cooling flow channel is connected with an outlet of the water tank through a water pump; an outlet of the cooling flow channel is connected with an inlet of the condenser; an outlet of the condenser is connected with an inlet of the water tank; the water pump is controlled by a water pump motor; the oil flow channel comprises an oil inlet pipeline and an oil outlet pipeline; an inlet of the oil inlet pipeline is connected with oil outlets of both the water pump motor and a fan motor; an outlet of the oil inlet pipeline is connected with an oil inlet of a working chamber of the hydrodynamic retarder; an outlet of the oil outlet pipeline is connected with oil inlets of both the water pump motor and the fan motor; an inlet of the oil outlet pipeline is connected with an oil outlet of the working chamber of the hydrodynamic retarder; and the fan motor controls a cooling fan to work. The boiling heat exchange cooling device for the hydrodynamic retarder has a good cooling effect and can prevent leakage of transmission liquid.

Description

technical field [0001] The invention relates to a cooling device, in particular to a boiling heat exchange cooling device for a hydraulic retarder. Background technique [0002] The hydraulic retarder is an auxiliary braking device, and its working main chamber is composed of a fixed wheel and a moving wheel. The mechanical energy at the input end of the hydraulic retarder is almost completely converted into heat through the damping effect of the liquid flow in the working wheel, and then the heat is taken away by the circulation of the cooling medium. As a working medium, transmission fluid has dual properties of transmission and heat carrying. The cooling of the transmission fluid is thrown into the heat exchanger of the external cooling system of the hydraulic retarder through the transmission fluid. After exchanging heat with the cooling water in the heat exchanger, it recirculates into the working chamber of the hydraulic retarder. In the process of use, it is found t...

AI Technical Summary

Problems solved by technology

In the process of use, it is found that this cooling method has the following disadvantages: the transmission fluid circulates to the outside of the hydraulic retarder for heat exchange, which is prone to the risk of system leakage; the cooling effect obviously lags behind the change of the working condition of the hydraulic retarder , the temperature fluctuation of the transmission fluid is large; the flow rate of the cold cycle is controlled by the speed of the driving wheel of the hydraulic retarder, and the space for improving the cooling capacity is limited

Images