Vertical-type machining fixing cage structure device and method for pressure vessel

Abstract

The invention discloses a vertical-type machining fixing cage structure device and method for a pressure vessel. The vertical-type machining fixing cage structure device comprises a lower supporting body assembly, an upper supporting body assembly and supporting seat assemblies. The lower supporting body assembly is connected with a machine tool faceplate. The upper end and the lower end of the upper supporting body assembly are fixedly connected with the lower ends of the supporting seat assemblies and the upper end of the lower supporting body assembly correspondingly. A pressure vessel assembly is hung into the vertical-type machining fixing cage structure device which is well set up. The overall vertical-type hoisting, fixed machining and station correcting and circle rectifying functions of the pressure vessel assembly can be achieved, machining station arrangement of the pressure vessel on the machine tool faceplate is realized, and stability of the vessel in the vertical-type machining process is guaranteed. Moreover, the structure is simple, manufacturing cost is low, universality is good, and economic benefits are high.

Description

technical field [0001] The invention relates to the field of processing structures of reactor pressure vessels of nuclear power technology, in particular to a vertical processing and fixing cage structure device and method for pressure vessels. Background technique [0002] The vessel assembly of the reactor pressure vessel includes an upper cylinder, a lower cylinder, a transition section and a lower head, wherein the upper cylinder is arranged in a symmetrical orientation by 8 nozzles. The total weight of the container assembly is about 270 tons, the height is about 10 meters, and the outer diameter of the largest barrel is about 4.8 meters. Early nuclear power reactor type pressure vessels were machined in sections, and the inner wall of each cylinder was machined and then butt welded. [0003] Due to the new design requirements, the sealing surface of the container component and the inner wall of the connecting pipe need to be machined after the cylinder head is welded....

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a pressure vessel vertical processing fixed cage structure device and method to solve the problem of the vertical processing station layout of the nuclear reactor pressure vessel integral machine tool and ensure the stability of the container during processing

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