Vehicle-mounted cold energy utilization and air conditioning refrigeration combination device for LNG (liquefied natural gas) heavy truck

Abstract

The invention discloses a vehicle-mounted cold energy utilization and air conditioning refrigeration combination device for a LNG (liquefied natural gas) heavy truck. The vehicle-mounted cold energy utilization and air conditioning refrigeration combination device comprises an LNG steel cylinder, a vaporizer, an air conditioner, a refrigerator, an engine and a controller, wherein the LNG steel cylinder is connected with the vaporizer through a pipeline; the vaporizer is connected with a circulating pump and an engine respectively; the circulating pump is connected with a heat exchanger, an air conditioner and the refrigerator through a first solenoid valve, a second solenoid valve and a third solenoid valve respectively; the heat exchanger, the air conditioner and the refrigerator are connected with the vaporizer through a pipeline respectively; a circulating pipeline is arranged between the heat exchanger and the engine; the controller is connected with the circulating pump, the first solenoid valve, the second solenoid valve and the third solenoid valve respectively. According to the vehicle-mounted cold energy utilization and air conditioning refrigeration combination device, a compressor is reduced, fuels for driving the compressor to operate are saved, the cold energy in a LNG gasification process is recycled, effects of saving the energy, reducing the consumption and reducing the cost are achieved, and the environment pressure is effectively relieved. Moreover, the vehicle-mounted cold energy utilization and air conditioning refrigeration combination device is simple in structure, simple in process and convenient to popularize and use.

Description

technical field [0001] The invention relates to the technical field of vehicle-used air-conditioning and refrigerator equipment, in particular to an air-conditioning and refrigeration combined device for utilizing cold energy on-board LNG heavy trucks. Background technique [0002] In recent years, the utilization of LNG (liquefied natural gas) in the field of transportation has become a highlight in the development of the natural gas industry. The National Natural Gas Development "Twelfth Five-Year Plan" clearly encourages efficient natural gas utilization projects such as LNG vehicles and marine fuels. The new version of "Natural Gas Utilization Policy" in October 2012 also listed natural gas vehicles as a priority development category. With the support of national policies, many local governments have promoted the "oil-to-gas" transformation of buses and taxis in the public transportation field and put forward clear goals. Therefore, LNG has achieved rapid development as...

AI Technical Summary

Problems solved by technology

The existing LNG truck air-conditioning systems are all traditional electric compression air-conditioning, which not only consumes part of the on-board fuel, but also increases the pressure on the environment due to the use of freon refrigerants

At the same time, for heavy-duty trucks, the drivers are on the go all year round, the working conditions are difficult, and the diet is limited, and truck drivers often hope to have a convenient diet during long-distance transportation. At present, it is unrealistic to carry food with the truck, and it is easy to spoil. Having a 3-5 day fresh food storage unit on board would be a welcome addition to truck drivers

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