Air filter replacement method, air filter replacement time detecting method, air filter replacement time detecting apparatus, and fuel cell system

Abstract

The invention relates to an air filter replacement method, an air filter replacement time detecting method, an air filter replacement time detecting apparatus, and a fuel cell system. The air filter replacement method comprises: comparing the actual error value of the air pressures at the gas input end and the gas output end of an air filter to a previously obtained correspondence relation table between air pressure error values and replacement times, finding a corresponding replacement time, and replacing the air filter according to the obtained replacement time, ie., the air filter is required to be replaced when the replacement time comes. According to the present invention, the method does not give the final replacement signal, but gives the air filter replacement prompt information before the replacement time a certain time, such that the method is advanced, the relevant personnel is notified to replace the air filter in advance, and the replacement prompt is given in advance, such that the relevant personnel can know the replacement time information in advance, prepares for replacement in advance, and can smoothly replace when the replacement time comes, and the condition that the whole device cannot operate due to the replace failure caused by the incomplete replacement provision can be avoided.

Description

technical field [0001] The invention relates to an air filter replacement method, a replacement time detection method and device, and a fuel cell system. Background technique [0002] The fuel cell system mainly includes electric stack, air subsystem, hydrogen subsystem, heat dissipation subsystem, etc. The air subsystem includes air compressors, air filters, humidifiers, mufflers, intercoolers and other components. In the present application, the air filter is referred to as an air filter or an air filter for short. [0003] For example, the Chinese patent document with the authorized announcement number CN206878107U discloses a fuel cell engine, including an air supply subsystem, which includes an air filter, an air compressor, an intercooler and a humidifier connected in sequence . Among them, the fuel cell stack air must be oil-free and pure air, which needs to meet the ISO8573 cleanliness class0 standard. The quality of fuel cell air entering the stack is closely re...

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Problems solved by technology

[0007] The purpose of the present invention is to provide an air filter replacement method to solve the problem that the existing air filter replacement method is relatively lagging, and it is impossible to inform relevant personnel in advance that the air filter needs to be replaced after a certain period of time before the replacement is required. filter problem

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