Tank balance elbow dismantles and installation isolated plant, including the crossbeam, the left middle part of crossbeam leads to the groove along the left side that left right direction was equippedwith rectangular shape, the middle part on crossbeam right side leads to the groove along the right side that left right direction was equipped with rectangular shape, the middle part on crossbeam top is equipped with the boss, the middle part of boss is equipped with the heavy groove of bearing frame installation, the center that tank bottom portion is sunk in the bearing frame installation is equipped with circular shape screw rod via hole along vertical direction, the lateral wall branch maybe use the arc of the centre of a circle of screw rod via hole as the center about the heavy grooveof bearing frame installation, bearing frame installation is sunk the left bearing frame that the lower part of groove left side wall was equipped with the concave yield lateral wall and is clamped the groove, bearing frame installation is sunk the right bearing frame that the lower part of groove right side wall was equipped with the concave yield lateral wall and is clamped the groove. Its aim at provide one kind can let maintenance person person can be fast, the efficient lifts balance elbow or install off from the balance elbow seat, improves the work efficiency that maintenance person person maintained the tank transmission case to the tank balance elbow dismantles and installation isolated plant that damages appears in the spare part that can avoid being correlated with.