High temperature gas cooled reactor steam generator inner part hoisting appliance and hoisting method

The invention discloses a high temperature gas cooled reactor steam generator inner part hoisting appliance and a method for hoisting an inner part by the hoisting appliance. The hoisting appliance comprises an annular hoisting beam, a hoisting beam pull rod and a self-locking mechanism which are sequentially connected, wherein the annular hoisting beam is connected with hook heads of a travelingcrane so that the hoisting appliance can be moved; the self-locking mechanism is used for hoisting the inner part, and when the hoisting appliance is in a free state, the hook head I and the hook headII can hook the lower edge of a hoisting hole under the gravity action of the self-locking mechanism so that the inner part can be stably hoisted; and after being hoisted to a specific position, theinner part is separated from the hoisting appliance by tightening the hook head I and the hook head II, so that hoisting of the inner part is completed. According the hoisting appliance and the methodfor hoisting the inner part