Fuel cell tramcar heat comprehensive utilization method and device

Abstract

The invention discloses a fuel cell tramcar heat comprehensive utilization method and a fuel cell tramcar heat comprehensive utilization device, belongs to the technical field of fuel cell application, and solves the problem of fuel cell tramcar heat comprehensive utilization. A cooling fluid outlet pipeline of a fuel cell is connected with a cooling circulating pump; a cooling circulating pump outlet pipeline is connected with a cooling fluid inlet of a radiator group; the cooling fluid outlet of the radiator group is connected with a cooling fluid inlet of the fuel cell; a fresh air preheater is arranged between a fresh air filter and an air return duct; a heating radiator is arranged in a carriage; a main radiator is arranged on the roof of a tramcar; the heating radiator and the fresh air preheater supply heat for the carriage in winter, and the remaining waste heat of the fuel cell is born by the main radiator; an exhaust duct radiator is arranged in the carriage, waste exhaust is taken as a cold source in summer, and the remaining waste heat of the fuel cell is born by the main radiator; under the working conditions in spring and autumn transition seasons, the main radiator bears all remaining waste heat release of the fuel cell. The fuel cell tramcar heat comprehensive utilization method and the fuel cell tramcar heat comprehensive utilization device are mainly used for the fuel cell tramcar heat comprehensive utilization.

Description

technical field [0001] The invention belongs to the field of fuel cell application technology, in particular to the heat comprehensive application technology of fuel cell vehicles. Background technique [0002] A fuel cell is a power generation device that generally uses hydrogen and oxygen as a reactive substance and converts chemical energy into electrical energy through an electrochemical reaction. Since its power generation process does not involve the combustion of fuel, it is not limited by the Carnot cycle, and its power generation efficiency is as high as 40-50%. , and the product is only water, and will not produce nitrogen, sulfur, carbon and other oxides. It is extremely clean and efficient, and has the advantages of high power density and energy density and a wide power range. Fuel cell trams carry their own active power source and are as flexible as internal combustion engine vehicles. They completely get rid of the line traction power supply system, can greatly...

AI Technical Summary

Problems solved by technology

Fuel cell vehicles often only have the main radiator: in winter, the waste heat of the fuel cell cannot be used, and a special electric heater is required to consume electric energy to heat the cabin; while in summer, because the temperature in the cabin is lower than the ambient temperature, the waste cooling radiator with low temperature The wind cannot be used. On the other hand, due to the high ambient temperature in summer and the high heat dissipation pressure of the main radiator, a single main radiator cannot use the waste cooling and exhaust air cooling capacity to achieve a reasonable combination of the two.

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