Large-scale box body device for operating state safety injection pump environment test and test method

The invention discloses a large-scale box body device for a running-state safety injection pump environment test, and the device comprises a box body, a hot air cavity is formed above an upper air distribution pore plate, an air return cavity is formed below a lower air return pore plate, a vertical air duct is laid along the inner side of the vertical side wall of the box body, and the vertical air duct is upwards communicated with the hot air cavity. The vertical air duct is downwards communicated with the air return cavity, the safety injection pump is located in a cavity between the upperair distribution pore plate and the lower air return pore plate, the safety injection pump comprises an electrical control part, a hydraulic drive part and a water inlet and return part, and the safety injection pump is vertically arranged so that the electrical control part, the hydraulic drive part and the water inlet and return part can be sequentially arranged from top to bottom. Two reservedpipe holes for water pipes