LNG cold energy comprehensive recovery and utilization system for heavy commercial vehicles

Abstract

The invention discloses a comprehensive LNG (liquefied natural gas) cold energy recovery and utilization system for a heavy-duty commercial vehicle. The comprehensive LNG cold energy recovery and utilization system comprises a brake branch, a steering branch, a gas supply branch and a refrigerating branch, wherein the brake branch comprises a first flow control valve and a first air-bath gasifier which are arranged in sequence; the steering branch comprises a second flow control valve and a second air-bath gasifier which are arranged in sequence; the gas supply branch comprises a first hand-operated stop valve, a water-bath gasifier, a pressure maintaining valve, a pressure maintaining tank and an engine which are arranged in sequence; the refrigerating branch comprises a first pipeline and a second pipeline, the first pipeline comprises a third flow control valve and a heat exchanger which are connected in sequence, and the second pipeline comprises a heat exchanger, a second hand-operated stop valve, a pump and an evaporator which are connected in sequence; the brake branch, the steering branch, the gas supply branch and the inlet end of the first pipeline are connected with an LNG liquid-storage tank; and the brake branch, the steering branch, the gas supply branch and the outlet end of the first pipeline are connected with the water-bath gasifier. According to the comprehensive LNG cold energy recovery and utilization system, the heat-dissipation and refrigeration needs of the heavy-duty commercial vehicle are met without any extra power consumption.

Description

technical field [0001] The invention belongs to the technical field of cold energy recovery and utilization, and in particular relates to a comprehensive recovery and utilization system of LNG (Liquefied Natural Gas: liquefied natural gas) cold energy for heavy commercial vehicles. Background technique [0002] Energy saving is one of the top issues in current car design. For LNG heavy-duty commercial vehicles, LNG cold energy recovery has opened up a new and effective way to improve energy utilization. If the cold energy is recovered for the heat dissipation and cooling needs of the whole vehicle, it has dual meanings of energy saving and environmental protection. [0003] As we all know, the working environment of heavy-duty commercial vehicles is harsh, and both the steering system and the braking system need to control the temperature of the medium within a reasonable range. If the temperature is too high, the steering will be heavy or even stuck, and the service life o...

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Problems solved by technology

[0003] As we all know, the working environment of heavy-duty commercial vehicles is harsh, and both the steering system and the braking system need to control the temperature of the medium within a reasonable range. If the temperature is too high, the steering will be heavy or even stuck, and the service life of the braking system will be reduced; currently, a single extension tube is used. The traditional air-cooled heat dissipation of the road, this traditional air-cooled heat dissipation method, leads to frequent braking and steering problems, and a high failure rate

[0004] At the same time, the driving comfort of heavy-duty commercial vehicles has increasingly become the first choice of younger drivers. For heavy-duty commercial vehicle drivers who travel long distances or travel to mining areas, they can drink cool and delicious drinks in the car in the hot summer. Cold drinks will be a "cool" thing, but at present, most car refrigerators are semi-conductor type and compressor type refrigeration, the former cooling effect is not good, the latter is expensive, and its use in heavy commercial vehicles is almost blank; The traditional air-conditioning refrigeration of commercial vehicles requires the engine to drive the compressor, which increases the fuel consumption by about 10%, and the economy is poor

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