Electric puller device

Abstract

The invention discloses an electric puller device. The electric puller device comprises a supporting mechanism, a guiding mechanism, positioning mechanisms, a lifting plate assembly and a first electric execution mechanism. The supporting mechanism comprises a horizontally-arranged first support; the guiding mechanism comprises two guide rails which are parallel with each other and are arranged on the first support at an interval; the multiple positioning mechanisms are detachably connected to the two guide rails respectively and used for fixing a hack of a fuel assembly to the two guide rails; the lifting plate assembly is arranged at one end of each guide rail and provided with guiding holes corresponding to rod-penetrating holes in the hack, and heating rods of the fuel assembly are loaded or unloaded through the guiding holes; the first electric execution mechanism is fixed to the end away from the lifting plate assembly and used for pulling the heating rods into the rod-penetrating holes in the hack. The electric puller device can avoid that in the process of rod penetrating, due to uneven stress, the hack is damaged, and the surfaces of the heating rods are scratched, and can efficiently complete penetration work of the heating rods and meet the requirements for assembly of different types of testing rod bundles.

Description

technical field [0001] The invention relates to the field of nuclear reactor test research, in particular to an electric puller device used in the assembly and disassembly of test heating rod bundles. Background technique [0002] The critical heat flux test, thermal diffusivity measurement test, flow heat transfer test, pressure drop measurement test, etc. of fuel assembly bundles are important basis for the design of nuclear power plant fuel assemblies, and the effect of the assembly and disassembly of the experimental heating rod bundles will affect Experimental results have a direct impact. In addition to the low-efficiency manual disassembly and assembly methods for the assembly and disassembly of existing experimental heating rod bundles, most of them use some disassembly equipment for nuclear fuel assemblies in nuclear power plants and molds in the petrochemical field. The bundles have certain limitations, which cannot meet the purpose of convenient and quick disasse...

AI Technical Summary

Problems solved by technology

This equipment is only suitable for the demoulding application of drilling tools, and can only meet the demoulding of a single drilling tool. It cannot fix the position of the test grid, and cannot meet the demand for the assembly of test rod bundles with high precision requirements.

[0005] Therefore, it is necessary to provide a method that can avoid grid damage and heating rod surface scratches caused by uneven force during the rod threading process, can efficiently complete the heating rod threading work, and can meet different types of test rod bundle assembly The special device of demand, to solve the above-mentioned deficiencies in the prior art

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