Fuel cell system and vehicle

Abstract

The invention relates to a fuel cell system and a vehicle. The fuel cell system comprises an entire vehicle heat management and fuel cell system; the fuel cell system comprises an outer circulating pipeline and an inner circulating pipeline; the inner circulating pipeline and the outer circulating pipeline perform the heat exchange through a heat exchanger, an inner circulating pump and a deionizator are arranged on the inner circulating pipeline; on the one hand, the inner circulating pipeline is greatly reduced in comparison with the original circulating pipeline length, and the amount of the flexible metal pipes and the metal bend joints and reducing the production quantity of the lithium ion from the root, the burden borne by the deionizator is relieved, and the service life can be improved by 4-5 times; on the other hand, the energy transfer of the inner circulating pipeline and the outer circulating pipeline is uninvolved with the cooling liquid interchange, the ion produced in the outer circulating pipeline cannot enter the inner circulating pipeline and cannot cause burden on the deionizator, no matter how high the ion content in the outer circulating pipeline is, the ion cannot circulate and flow in the fuel cell, and the insulation performance of the fuel cell system cannot be greatly influenced.

Description

technical field [0001] The present invention relates to a fuel cell system and a vehicle. Background technique [0002] A hydrogen fuel cell is a battery that uses hydrogen as fuel and oxygen as an oxidant to convert chemical energy into electrical energy through an electrochemical reaction. It is a reverse reaction of electrolyzing water, generating water and heat during the reaction. When the fuel cell is working, the hydrogen electrode is negatively charged due to excess electrons, and the oxygen electrode is positively charged due to the lack of electrons. Hydrogen fuel cell is a clean and environmentally friendly new energy for people to solve the energy crisis. At present, hydrogen fuel cell systems face problems such as short life, high cost, poor environmental applicability, high failure rate, and complex system structure. Domestic hydrogen fuel cell manufacturers are all It is in its infancy, and its overall strength and technology integration capabilities are insu...

AI Technical Summary

Problems solved by technology

At present, the mainstream layout is that the radiator is arranged on the roof, and the heat dissipation pipe is coiled on the roof for a long distance. If the heat dissipation pipe is too long, a lot of metal hoses or metal elbow joints will be used, because metal is easy to cool in a high temperature environment. Ions are generated in the liquid, and there are metal radiators and water pumps on the cycle. In a high-temperature environment, a large number of ions will be formed in the cooling liquid in the cycle. Due to the conductivity of the ions, when passing through the interior of the fuel cell, it will cause The insulation performance of the fuel cell is reduced. In order to ensure that the insulation value of the fuel system is above the safe value, a deionizer will be added to the cooling cycle to reduce the ion concentration of the coolant.

Since the metal components in the pipeline, radiators, water pumps, etc. release ions continuously during the circulation of the coolant, a deionizer needs to be replaced in an average of 1-2 months, and the cost of the deionizer is high, and each deionizer The cost of the system is about 2,000 yuan, and the maintenance cost is also very high. It is impossible to further improve the insulation resistance of the system. At the same time, the coolant needs to be replaced regularly. Replace it with a new coolant made of deionized water to reduce the ion content in the coolant.

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