Dividing device for eccentric inner cylinder assembly of heat exchange unit of high-temperature gas cooled reactor

Abstract

The invention discloses a dividing device for an eccentric inner cylinder assembly of a heat exchange unit of a high-temperature gas cooled reactor. The dividing device is connected to the end of the eccentric inner cylinder assembly and comprises a dividing device body and a transitional supporting block. The dividing device body is arranged to be in a circular disc shape. A plane is arranged at the circular disc top of the dividing device body, and a threaded hole is formed in the circular disc bottom of the dividing device body. The inner side face of the dividing device body is provided with a core shaft and a groove formed along the circumference of the core shaft. The dividing device body, the core shaft and the groove are arranged to be of an endocentric structure. The end of the eccentric inner cylinder assembly is clamped in the groove to enable the core shaft to be inserted into the inner circle of the eccentric inner cylinder assembly. The transitional supporting block is arranged in the groove of the circular disc bottom of the dividing device body and makes contact with a screw arranged in the threaded hole to enable the transitional supporting block to tightly clamp the end of the eccentric inner cylinder assembly. According to the dividing device for the eccentric inner cylinder assembly of the heat exchange unit of the high-temperature gas cooled reactor, the problem of dividing slotting of an existing inner cylinder assembly is solved, and meanwhile the accuracy of dividing slotting of the inner cylinder assembly is further ensured.

Description

Technical field [0001] The invention relates to a high-temperature gas-cooled reactor, and more specifically, to an indexing device for an eccentric inner cylinder assembly of a heat exchange unit of a high-temperature gas-cooled reactor. Background technique [0002] The high-temperature gas-cooled reactor belongs to the fourth-generation nuclear reactor technology. The heat exchange unit is the core component of the high-temperature gas-cooled reactor nuclear power plant, and the inner cylinder assembly is the key support component in the heat exchange unit, such as figure 1 As shown, the main external dimensions of the inner cylinder assembly are: the outer diameter D is 279.4 ~ 279.8 mm, the length is 8815 mm, and the material is 6625 high temperature nickel-based alloy. The outer circle of the inner cylinder assembly is provided with a three-quarter groove 20 with a width of 10~10.1mm and a depth of 3~3.2mm. The radial angle of the three grooves is required to be 120°±20′, an...

AI Technical Summary

Problems solved by technology

[0005] In view of the above-mentioned defects in the prior art, the object of the present invention is to provide an indexing device for the eccentric inner cylinder assembly of the heat exchange unit of the high temperature gas-cooled reactor, which solves the problem of indexing and slotting the existing inner cylinder assembly, At the same time, it also ensures the accuracy of the indexing and slotting of the inner cylinder assembly

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