Wall penetrating body and using method thereof

Abstract

The invention discloses a wall penetrating body and a using method thereof and relates to a sleeve of a protecting pipeline for sealing, in particular to a wall penetrating body for protection sealing of nuclear power wall penetration and a using method of the wall penetrating body. The wall penetrating body comprises an outer pipe (22), an inner pipe and a corrugated pipe (26), wherein the outer pipe is used for being fixed to a wall body (21); the inner pipe is arranged inside the outer pipe (22) in a sleeve mode; the two ends of the corrugated pipe are fixed together to the outer pipe (22) and the inner pipe (20) in a sealing mode respectively. The wall penetrating body is simple in structure, low in cost, easy and convenient to operate and high in linearity, coaxiality and sealing performance. The corrugated pipe (26) is adopted to seal the inner pipe (20) which can move, and dynamic sealing with high sealing performance is achieved.

Description

technical field [0001] The invention relates to a casing for sealing protective pipes, in particular to a wall-penetrating body used for nuclear power wall-penetrating protection and sealing and a method for using the same. Background technique [0002] Beginning in the 1960s, the United Kingdom, the United States and Germany began to develop high-temperature gas-cooled reactors. In 1964, the world's first high-temperature air-cooled reactor (Dragon, 20MWth) built in cooperation with the European Community was critical. Subsequently, Germany built the 15MWe high-temperature air-cooled test reactor AVR and the 300MWe nuclear power prototype reactor THTR-300. The United States has built a 40MWe experimental high-temperature gas-cooled reactor, the Peach-Bottom reactor, and a 330MWe Fort.St.Vrain nuclear power prototype reactor. At the end of 2002, the "Generation IV Nuclear Energy System International Forum" and the U.S. Department of Energy jointly released the "Generation ...

AI Technical Summary

Problems solved by technology

However, the axial expansion of the inner tube 20 after being heated will cause relative movement with the outer tube 22 fixed on the wall with less obvious thermal expansion. If the inner tube 20 and the outer tube 22 are filled with simple sealing filler, Due to the relative movement between the inner tube 20 and the outer tube 22, the service life of the sealing filler will be very short

Unable to meet the requirements of nuclear power plants

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