Nuclear power plant head package mobile cable bridge apparatus

Abstract

The invention provides a nuclear power plant head package mobile cable bridge apparatus which includes: an integrated head package assembly which is provided with a core shroud thereon; the side of the core shroud is provided with a cable connection board and a cable arrangement platform; the cable arrangement platform is intended for assignment and fixing of cables at the side of the core shroud and also positioning of nuclear and non-nuclear cables on the head package; the side of the core shroud is also provided with a first cable socket connector; the first cable socket connector is fixed to the cable connection board. The nuclear power plant head package mobile cable bridge apparatus is also provided with a second cable socket connector which is configured to be mounted or dismounted in cooperation with the first socket connector. The nuclear power plant head package mobile cable bridge apparatus is arranged on the integrated head package assembly and a civil engineering plane through track arrangement. During material changing, part of the track is dismounted through moving the cable bridge apparatus, so that hoisting weight of the integrated head package assembly is reduced and the risk of lifting the integrated head package assembly structure is mitigated.

Description

technical field [0001] The invention relates to the design of a nuclear reactor in a nuclear power plant, in particular to a mobile cable bridge device at the pile top of the nuclear power plant. Background technique [0002] The nuclear reactor is located in the containment of the nuclear power plant and is one of the key equipments of the nuclear steam supply system. Among them, the integrated reactor roof assembly is a major device on the reactor that integrates several equipment or components with different functional requirements on the reactor roof to simplify the refueling operation of the reactor. [0003] Various nuclear and non-nuclear grade cables, such as control rod drive mechanism cables, pile top neutron fluence rate measurement system cables, and control rod drive mechanism rod position indicator cables, reach the entrance of the main control room on the civil construction platform through the integrated stack top assembly And connected with the main control...

AI Technical Summary

Problems solved by technology

When the span between the civil construction platform and the integrated pile top is large or the cable bridge on the civil construction platform needs to cross other devices such as refueling tracks, the height of the cable bridge is high when it is turned up, and it is also very difficult to realize the turning operation of the cable bridge.

[0007] In the patent "a cable bridge structure for nuclear power plant pile top cable layout" (patent number: 2013100119232), the movement of the mobile cable bridge is driven by a rack and pinion pair, and the transmission is stable, but the guide rail structure is relatively complicated

During the movement of the cable tray, the bending of the cable drag chain is also more complicated, and the design is more difficult

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