In addition to gas purging plug-type aircraft is a new addition to the online gas equipment, and its function is to use brick on the gas permeability of the diffusion effect of high-purity nitrogen will be dispersed into numerous small bubbles, small bubbles in the process of increased absorption and promote the development of hydrogen and some suspended impurities like floating, so as to achieve further clean-up of aluminum in liquid hydrogen and the role of impurities.

 The device has a simple structure, easy maintenance, long service life, easy to plug air permeability features such as brick.

 The device from the rack, steel shell, cover and cover open pneumatic devices, thermal insulation lining, insulation baffles, outlet devices, gas cabinets and gas flow control device to concentrate the supply of components.