A vacuum refrigerated truck

Abstract

The invention relates to a vacuum refrigerator car which is characterized in that the vacuum refrigerator car comprises a vacuum compartment with a heat insulation layer, the vacuum compartment is fixed to the top of a car chassis, at least one group of U-shaped rack pipes is arranged in the vacuum compartment, radiant panels are arranged on pipes of the U-shaped rack pipes, a heat insulation door and a vacuum door are arranged at the rear end of the vacuum compartment, a refrigerator is mounted outside the vacuum compartment and communicated with the U-shaped rack pipes, a vacuum pump, a humidifying ventilation device and a power generation device are fixedly arranged on the car chassis, the vacuum pump and the humidifying ventilation device are respectively communicated with the inside of the vacuum compartment, the power generation device is electrically connected with an electrical cabinet arranged outside the vacuum compartment, the electrical cabinet is electrically connected with the refrigerator, the vacuum pump and the humidifying ventilation device, and a touch screen electrically connected with the electrical cabinet is arranged in a cab of the car and electrically connected with temperature, pressure and humidity sensing elements arranged in the vacuum compartment. The vacuum technology is organically combined with radiant heat transfer refrigeration technology, and the vacuum refrigerator car can be widely applied to preservation of various fresh agricultural products and food preservation and transportation process.

Description

Technical field [0001] The invention relates to a food refrigerated transportation tool, in particular to a vacuum refrigerated vehicle suitable for fresh agricultural products transportation. Background technique [0002] According to an expert survey, the annual loss rate of vegetables in my country exceeds 20%. Among them, the loss rate of leafy vegetables exceeds 30%. Only 60% to 70% of vegetables can be effectively used every year. According to estimates by relevant experts from the Ministry of Agriculture, the post-production loss rates of my country’s grain, potatoes, fruits, and vegetables are 7% to 11%, 15% to 20%, 15% to 20%, and 20% to 25%, which are far higher than the average of developed countries. The loss rate, converted into economic losses, amounts to more than 300 billion yuan, which is equivalent to the input and output of more than 100 million mu of cultivated land being wasted, and it mainly occurs in the storage and transportation links. [0003] Refrigeratio...

AI Technical Summary

Problems solved by technology

However, the air in the vacuum environment is thin, and as the vacuum degree increases, the convective heat transfer capacity decreases, resulting in the weakening of the convective heat transfer effect of the air cooler, or the requirement for maintaining low temperature cannot be met, or a larger power refrigeration unit is required, and the power of the refrigeration unit increases. , energy consumption is bound to increase

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