Low-temperature preheating system for engineering machine

Abstract

Disclosed is a low-temperature preheating system for an engineering machine. The bottoms of an engine oil tank and a diesel oil fuel tank are provided with a first heating pipeline and a second heating pipeline respectively, and the first heating pipeline and the second heating pipeline are each provided with a plurality of dissipating fins. An oil inlet of a fuel heater is connected with the bottom of a gasoline fuel tank, a water inlet of the fuel heater is connected with a water outlet of a warm air system through a pipeline, a water inlet of the warm air system is connected with a third water outlet on an engine assembly through a pipeline, a third water inlet on the engine assembly is connected with a second water outlet of a second heating pipeline through a pipeline, a second water inlet of the second heating pipeline is connected with a first water outlet of a first heating pipeline through a pipeline, and a second water outlet of the first heating pipeline is connected with a water outlet of the fuel heater through a pipeline. A riser tube is low in cost, iron corrosion in the casting process can be avoided, and impact formed at the bottom of a foundry furnace caused by backflow of molten metal can be effectively lowered. The system can solve the cold-boot problem, and can improve the comfort level of a driver.

Description

technical field [0001] The invention relates to the field of casting, in particular to a low-temperature preheating system for engineering machinery. Background technique [0002] At present, when construction machinery is operating in cold regions, due to special climatic conditions, the temperature of the oil in the oil tank is likely to be too low, and the high-grade diesel in the diesel fuel tank is prone to wax condensation, which makes it difficult for construction machinery to start cold. In addition, due to the difficulty in starting the construction machinery, the heating system in the cab cannot receive effective heat energy supply, and the driver sitting in the cab cannot get heating in time, and the operating comfort is poor. Contents of the invention [0003] Aiming at the problems existing in the above-mentioned prior art, the present invention provides a low-temperature preheating system for construction machinery, which can effectively solve the problem of ...

AI Technical Summary

Problems solved by technology

[0002] At present, when construction machinery is operating in cold regions, due to special climatic conditions, the temperature of the oil in the oil tank is likely to be too low, and the high-grade diesel in the diesel fuel tank is prone to wax condensation, which makes it difficult to start the construction machinery cold

In addition, due to the difficulty in starting the construction machinery, the heating system in the cab cannot receive effective heat energy supply, and the driver sitting in the cab cannot get heating in time, and the operating comfort is poor

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