lng heavy truck on-board cold energy utilization air-conditioning and refrigeration combined device

Abstract

The invention discloses an air-conditioning and refrigeration combination device for LNG heavy truck vehicle-mounted cold energy utilization, which includes an LNG steel cylinder, a carburetor, an air conditioner, a refrigerator, an engine and a controller. The engine is connected; the circulation pump is connected to the heat exchanger, air conditioner and refrigerator respectively through the first solenoid valve, the second solenoid valve and the third solenoid valve, and the heat exchanger, air conditioner and refrigerator are respectively connected to the carburetor through pipelines; A circulation pipeline is provided between the heat exchanger and the engine; the controller is respectively connected with the circulation pump, the first solenoid valve, the second solenoid valve and the third solenoid valve. In the present invention, the number of compressors is reduced, the fuel for driving the compressor is saved, and the cold energy in the LNG vaporization process is recovered, which plays the role of saving energy, reducing consumption, and reducing costs, and effectively relieves environmental pressure; Simple and easy to promote 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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