Hefei Sinopower Technologies Co., Ltd
The so-called photovoltaic hydrogen production is not a new concept, and its research mainly focuses on the thermochemical hydrogen production, photochemical decomposition hydrogen production, photocatalytic hydrogen production, artificial photosynthesis hydrogen production and biological hydrogen production. Among them, the technology of combining photovoltaic power generation and water electrolysis to produce hydrogen into a system is the mainstream development direction.
During the operation of the fuel cell, in order to ensure that the electrode sidewall can diffuse uniformly in the active area, the gas must be supplied in excess, and the excess gas cannot be directly discharged after reaction to avoid waste.
It is urgent to develop hydrogen energy and fuel cell industry in China. In the past 19 years, China's dependence on foreign oil and natural gas was 70.8% and 43% respectively. In recent years, the self-sufficiency rate of crude oil and natural gas has decreased year by year, and China's energy security has a certain potential threat.
Hydrogen pressure reducing valve is to control the opening of the opening and closing parts in the valve body to adjust the flow of the medium, reduce the pressure of the medium, and adjust the opening of the opening and closing parts with the help of the pressure behind the valve, so as to keep the pressure behind the valve within a certain range.
Proton exchange membrane fuel cell (PEMFC) has many advantages, such as high efficiency, clean, zero emission and so on. In practical application, 40% ~ 60% of the chemical energy of PEMFC fuel is converted into electrical energy, and most of the remaining energy is converted into heat energy.
There is a closed cavity in the solenoid valve. There are through holes in different positions. Each hole leads to different oil pipes. There is a valve in the middle of the cavity and two electromagnets on both sides. The valve body will be attracted to which side when the magnet coil is electrified.