A high temperature gas-cooled reactor reactor pressure vessel inspection device

Abstract

The technology belongs to the field of pressure vessel inspection devices, and in particular relates to a high-temperature gas-cooled reactor pressure vessel inspection device. The inspection device 1 is located between the outer cylinder wall 2 of the pressure vessel and the cabin cylinder wall 3. The inspection device 1 includes a circular guide rail 4, a track running trolley 5, a lifting rod 6, a two-axis scanner 7, a positioning pin pointing mechanism 8, and a circular guide rail. 4 is a whole ring spliced ​​by a plurality of arc guide rails; the track running trolley 5 is located on the circular guide rail 4 and can move along the track; a lifting rod 6 is installed on the track running trolley 5, and the lower end of the lifting rod 6 carries a positioning pin to point to the mechanism 8. It can be controlled and fixed with the positioning pin at the bottom of the pressure vessel. The lower end of the lifting rod 6 of the present invention carries a positioning pin pointing mechanism 8, which can be controlled and fixed with the positioning pin at the bottom of the pressure vessel.

Description

technical field [0001] The technology belongs to the field of pressure vessel inspection devices, and in particular relates to a high-temperature gas-cooled reactor pressure vessel inspection device. Background technique [0002] High-temperature gas-cooled reactors are nuclear reactors that use helium as a coolant and have a high outlet temperature. With the support of the national "863" program, since the mid-1980s, China has carried out research and development of high-temperature gas-cooled experimental reactors, one of the fourth-generation advanced nuclear energy system technologies. This type of reactor also has a nuclear reactor pressure vessel similar to a pressurized water reactor. The reactor pressure vessel is an airtight container that accommodates the nuclear reaction and withstands its huge operating pressure. It is the key equipment in the high-temperature gas-cooled reactor nuclear power plant. Absolutely safe and reliable during the lifetime of the nuclea...

AI Technical Summary

Problems solved by technology

To sum up the above situation, a set of reactor pressure vessel inspection device that can be implemented remotely is needed. At present, there is no inspection technology for high temperature gas-cooled reactor commercial power plant reactor pressure vessel in the world. It is necessary to independently design a nuclear power plant reactor pressure vessel inspection device for this type of reactor. , the inspection device inspects from the outside of the pressure vessel

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