Nitrogen storage device

The utility model provides a nitrogen storage device, belongs to gaseous storage facilities field. Including pressurization abandonment separable set (2) and nitrogen gas storage tank (3), its characterized in that: pressurization abandonment separable set's (2) gas outlet connect the gas access of nitrogen gas storage tank (3), the liquid outlet of pressurization abandonment separable set (2) and nitrogen gas storage tank (3) is connected liquid and is expected delivery line (5), pressurization abandonment separable set's (2) air inlet pipeline on be equipped with buffer tank (1). The utility model provides a carrying out nitrogen to the storage tank and sealing the nitrogen storage device who handles usefulness, utilize the buffer tank to stablize atmospheric pressure and air current, pressurization abandonment separable set is to nitrogen gas and organic gas separation, guarantee the efficiency and the effect of separation, can be with the leading -in nitrogen gas storage tank of the nitrogen gas that puri