Multifunctional water tank for cold boot of fuel cell

Abstract

The invention discloses a multifunctional water tank for cold boot of a fuel cell. The multifunctional water tank comprises an end socket front cover, an end socket, a water tank main body and a tail gas collecting end socket. The multifunctional water tank is characterized in that the end socket front cover is provided with an air intake pipe bushing hole and a hydrogen intake pipe; the end socket is provided with at least two hydrogen intake holes, wherein a hydrogen feeding pipe which is fixedly connected with the hydrogen intake hole is arranged at one side of the end socket, and an air intake pipe which is matched with the air intake pipe bushing hole is arranged at one side of the end socket; a catalysis pipe corresponding to the hydrogen intake pipe is arranged in the water tank main body, a catalyst is arranged at the inner side of the pipe wall of the catalysis pipe, at least one heating rod is also arranged in the water tank main body, and the water tank main body is respectively provided with a cooling liquid inlet and a cooling liquid outlet; and the end socket front cover, the end socket, the water tank main body and the tail gas collecting end socket are fixedly connected in sequence. The multifunctional water tank disclosed by the invention is simple in structure and convenient to use, is connected to a circulating main pipeline of a fuel cell system in series and achieves the functions of cooling liquid storage, auxiliary heating, tail gas treatment and the like.

Description

technical field [0001] The invention relates to a water tank, in particular to a multifunctional water tank for cold start of a fuel cell. Background technique [0002] Fuel cells have the advantages of no pollution, high energy ratio, and high efficiency. At present, the automotive industry is actively promoting the commercialization of fuel cell vehicles, but there are still various challenges, such as: reliability, durability, cost and hydrogen fuel. Storage, transportation and refueling and other infrastructure construction issues. In addition to these problems, the cold start capability of fuel cell engines is also one of the important challenges restricting the commercial application of FCV (fuel cell vehicles). In order to complete the cold start process of the fuel cell stack, especially the cold start process at a temperature lower than -20°C, it is generally necessary to use an auxiliary start method. This process mainly realizes the heating up of the fuel cell t...

AI Technical Summary

Problems solved by technology

The present invention redesigns the original water tank, comprehensively utilizes the above three heating methods, increases its functions, and solves the problem of insufficient external heating power of the fuel cell during the cold start process

Images