A kind of crane and its engine system

Abstract

The invention discloses an engine system of a crane. The engine system comprises a natural gas engine (11), a liquid storage tank (12) and a vaporization assembly (13), wherein the natural gas engine (11) is arranged on a walking platform plate (30) between a crane cab (31) and a turntable (32), and the liquid storage tank (12) is used for containing liquefied natural gas (LNG); an outlet of the liquid storage tank (12) is communicated with a gas inlet of the natural gas engine (11) through the vaporization assembly (13). According to the engine system of the crane, disclosed by the invention, an LNG system consisting of the natural gas engine, the natural gas storing liquid storage tank and the vaporization assembly is arranged, the LNG is taken as a fuel, so as to meet the working needs of the crane, and the price of the fuel is relatively cheap, so that the use cost of the crane can be reduced. On the other hand, the engine system of the crane is beneficial to environmental protection; in addition, the explosion resistance of natural gas is relatively good, so that noise generated during work is relatively low. The invention further discloses the crane with the engine system.

Description

Technical field [0001] The invention relates to the technical field of engineering machinery power control, in particular to an engine system. The invention also relates to a crane having the above engine system. Background technique [0002] At present, the crane power system basically matches the diesel engine system. The diesel engine system includes a diesel engine and a fuel supply system connected to the diesel engine. The fuel supply system includes two parts, an oil inlet part and an oil return part. [0003] Please refer to figure 1 , figure 1 It is a schematic structural diagram of a typical diesel engine system in the prior art. [0004] The oil inlet part mainly includes diesel tank 6, coarse filter 5, engine oil inlet pipe 3, engine fuel supply pump 2, diesel fine filter 1, and other components; the oil return part mainly includes oil return pipe 4; when the diesel engine 7 starts, the diesel is in the engine Under the action of the fuel supply pump 2, it is pumped fro...

AI Technical Summary

Problems solved by technology

[0005] As we all know, large-scale machinery such as cranes consume a lot of diesel oil, but with the continuous exploitation of oil energy, the amount of oil is decreasing year by year, and the price of diesel oil is also increasing, resulting in higher and higher operating costs for cranes.

[0006] At the same time, due to the high sulfur content of domestic diesel oil, more impurities, and poor overall quality, it is difficult to meet the increasingly stringent emission regulations.

Moreover, the price of high-quality diesel oil is several times higher than that of ordinary diesel oil, and the cost of use is too high

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