PACKING BOX FOR TRANSPORTING PHWR FUEL ASSEMBLY

The present invention relates to a package box for transferring a heavy water reactor fuel assembly. The package box comprises: a rectangular bottom cell (100) which includes a first reception groove portion (110) having at least two columns of reception grooves (111) bent in parallel, and first holding bumps (120) which protrude to be higher than the first reception groove portion (110) and are provided at both end columns of the first reception groove portion (110), wherein the first holding bump (120) is arranged to protrude from an upper portion of the rectangular bottom cell (100) with a step difference with respect to the first reception groove portion (110); a middle cell (200) which is inserted into and assembled with the upper portion of the bottom cell (100), and includes a first fixing groove portion (210) having a fixing groove (211) formed to be bent to correspond to the respective reception grooves of the first reception groove portion (110) at a lower portion of the middle cell (200), and a second reception groove portion (220) having at least two columns of reception grooves (221) bent in parallel, and second holding bumps (230) which protrude to be higher than the second reception groove portion (220) and are provided at both end columns of the second reception groove portion (220) at an upper portion of the middle cell (200), wherein the second holding bump (230) is arranged to protrude from the upper portion of the middle cell (200) with a step difference with respect to the second reception groove portion (220); and a top cell (300) which is inserted into and assembled with the upper portion of the middle cell (200), and includes a second fixing groove portion (310) which is formed to be bent to correspond to the respective reception grooves of the second reception groove portion (220) at a lower portion of the top cell. According to the present invention, provided is the package box for a heavy water reactor fuel assembly which safely protects the fuel assembly from external impacts, can be easily recycled due to a single material, and can be easily handled during a transfer process. 본 발명은 중수로 연료집합체를 운반하기 위한 포장박스에 관한 것으로, 나란하게 만곡 형성된 2열 이상의 안착요홈(111)을 갖는 제1안착요홈부(110)와, 상기 제1안착요홈부(110) 보다 높게 돌출 형성되어 상기 제1안착요홈부(110)의 양 끝단 열에 마련되는 제1걸림턱(120)이 단차를 갖고 상부에 돌출되게 마련된 장방형의 바닥셀(100)과; 하부에 상기 제1안착요홈부(110)의 각 안착요홈과 대응되어 만곡 형성된 고정요홈(211)을 갖는 제1고정요홈부(210)가 마련되며, 상부에 나란하게 만곡 형성된 2열 이상의 안착요홈(221)을 갖는 제2안착요홈부(220) 및 상기 제2안착요홈부(220) 보다 높게 돌출 형성되어 상기 제2안