A vehicle-mounted high-energy cold storage system

Abstract

The invention discloses a vehicle-mounted high-energy cold storage system, which includes an external cold storage unit and a compartment cold storage device. The external cold storage unit includes a refrigeration unit, a heat exchanger, a cold storage tank and a water pump. The device is coupled with the cold storage tank, and the top and bottom of the cold storage tank are equipped with external conduits with shut-off valves, and the external conduits are connected with low-temperature water pumps; the cold storage device for the car is mainly composed of a plurality of cold storage bars, and the cold storage bars include longitudinally arranged side by side. On the top cold storage bar at the top of the compartment and the side cold storage bars at both sides in the compartment, a drain pipe is respectively arranged at the front end of each cold storage bar. The invention innovatively adopts the separate installation of the external cold storage unit and the compartment cold storage device, which greatly reduces the vehicle load, significantly reduces the space occupied by the system, and expands the cargo loading capacity of the refrigerated truck / refrigerated truck. The cold storage adopts non-phase-change liquid cold storage liquid, with low temperature limit and high cold storage efficiency. It is a new type of energy-saving and environmentally friendly vehicle-mounted cold storage system.

Description

technical field [0001] The invention relates to the technical field of refrigeration, in particular to a vehicle-mounted high-energy cold storage system. Background technique [0002] The potential of China's cold chain logistics market is huge, and China's refrigerated truck market has developed rapidly in recent years. Refrigerated vehicles are mainly divided into mechanical refrigeration, cold storage refrigeration and liquefied gas refrigeration according to the refrigeration method. Mechanical refrigeration has problems such as complex structure, easy failure, high maintenance cost and slow cooling speed. The cooling speed of liquid nitrogen refrigeration is fast, but the cost is high; cold storage refrigeration relies on its own cold plate for cold storage to maintain the refrigerated temperature in the compartment, with low operating costs, easy maintenance and reusable cold plate, suitable for medium and short-distance transportation of refrigerated goods. It is wi...

AI Technical Summary

Problems solved by technology

Although this method is relatively energy-saving because it can be powered by an external AC power supply, it may also have the following disadvantages: (1) Since the entire refrigeration system is integrated on the vehicle body, the system is relatively bulky, resulting in a heavy load on the vehicle body and increasing fuel consumption. (2) The system needs to be independently equipped with a cold storage tank device, which takes up a lot of space in the compartment and reduces the cargo loading capacity; (3) The cold storage tank is filled with phase-change cool storage agent (which is conventionally used in existing cold storage systems), Mainly rely on solid-liquid phase change latent heat storage, there is a lower limit of phase change temperature, and the cold storage efficiency is not high; (4) The cold storage refrigeration system has undergone secondary heat exchange, and in principle there must be heat loss, which affects the efficiency of refrigeration energy consumption. decreased

However, so far, there have been no reports of a new type of vehicle-mounted cold storage system that is light in load, occupies less space in the compartment, has a lower temperature limit, high cold storage efficiency, and is energy-saving and environmentally friendly.

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