Direct-current driven freezing and refrigerating car

Abstract

The invention provides a direct-current driven freezing and refrigerating car. The direct-current driven freezing and refrigerating car comprises a carriage, and is characterized by further comprising a refrigerating system, a cold storage system and a multi-power supplying system, wherein the refrigerating system comprises a direct current refrigerating compressor, a refrigerator, a liquid storing device, a dry filter, a first solenoid valve, a first expansion valve, an evaporator and a gas-liquid separating device which are sequentially connected to form a loop; the cold storing system comprises a direct current refrigerating compressor, a condenser, a liquid storing device, a dry filter, a second solenoid valve, a second expansion valve, a cold storing device and a gas-liquid separating device which are sequentially connected to form a loop; the evaporator and the cold storing device are both arranged in the carriage; the multi-power supplying system is used for supplying power to the direct current refrigerating compressor; and the multi-power supplying system comprises a direct current switch power supply, a storage battery, a direct current generator, a first switch and a second switch. With the adoption of the direct-current driven freezing and refrigerating car under the scheme, the temperature in the carriage of the freezing and refrigerating car can be reliably ensured, thus, the risks in cold-chain transportation are greatly reduced; and the direct-current driven freezing and refrigerating car is convenient to use and low in operating cost, and can greatly reduce tail gas emission.

Description

technical field [0001] The invention relates to a refrigerated vehicle, in particular to a refrigerated vehicle driven by direct current. Background technique [0002] With the rapid growth of the population on the earth and the improvement of human living standards, the available energy in the world is becoming less and less, and the environmental pollution is becoming more and more serious. Energy conservation and environmental protection have become the common goals pursued by all countries in the world. [0003] In the cold chain transportation industry, refrigerated vehicles occupy a very important position. In the prior art, the following three methods are mainly used to provide cooling capacity for refrigerated vehicles: independent refrigerating units, non-independent refrigerating units and cold storage device units. [0004] The independent refrigeration unit includes an independent engine, a mechanically driven refrigeration compressor and an evaporator, etc. The...

AI Technical Summary

Problems solved by technology

Obviously, the cooling capacity of this method is limited, that is, when the cooling capacity of the cold storage device is exhausted, the temperature in the compartment will rise rapidly, so that the whole cold chain transportation cannot be guaranteed, which brings a lot of pressure on the transportation of refrigerated and frozen foods and medicines. to risk

In addition, this type of power supply system can only be used when parking, that is, it can only store cold when the car is stopped, and its use is subject to certain restrictions.

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