Gas distribution device of synthesis reactor

The utility model discloses a gas distribution device of a synthesis reactor, which is composed of eight distribution plates (1). The eight distribution plates are assembled and compressed to be installed on supports (4) of the distribution plates by the aid of set screws (2), nuts (3) and compression bolts (5), so that an integral distribution member is formed. The distribution plates are vertically installed from a first layer to an eighth layer in sequence, the space between each two plates is determined by the height of a distance tube (6), and the hole diameters and the hole distances of each layer of the distribution plates are different. When the eight hole plates are stacked together, holes on each hole plate are mutually staggered so that accelerant is prevented from falling down along the holes. In addition, gas entering the reactor can be evenly distributed, reactive state is optimized, flow resistance of the gas is reduced, and reaction efficiency is improved.