Finger sleeve cleaning process and equipment used by process

Abstract

The invention discloses a finger sleeve cleaning process and equipment used by the process. The finger sleeve cleaning process comprises the following steps: S1, injecting a cleaning solution into a finger sleeve, and chemically soaking the inner part of the finger sleeve; S2, guiding compressed air into the finger sleeve, and enabling the cleaning solution in the finger sleeve to quickly discharge out of the finger sleeve; S3, injecting water into the finger sleeve through a nylon hose, and flushing dirt in the hose; S4, guiding the compressed air into the finger sleeve, and drying the innerwall of the finger sleeve by blowing to the greatest extent, thereby accomplishing pre-drying; S5, performing vacuum drying through a vacuum pump, a cold trap and multiple branches; and S6, uniformlyspraying a Nairobi lubricant to the inner wall of the finger sleeve. The finger sleeve cleaning process is simple, is relatively high in proportion of mechanically replacing labor power, is relativelysmall in labor intensity, is good in cleaning effect, is high in cleaning efficiency, can be used for easily cleaning residues adsorbed on the inner wall of the finger sleeve, does not generate radioactive dust in a cleaning process, and is environmentally friendly.

Description

technical field [0001] The invention relates to the technical field of cleaning technology and equipment, in particular to a finger casing cleaning technology and the equipment used in the technology. Background technique [0002] The core neutron flux measurement system is a key system for nuclear power plant core status monitoring, and the reliable operation of the system is an important guarantee for the safe operation of the core. The neutron flux tube is inserted into the core fuel assembly, and the outside of the tube is in direct contact with the primary circuit coolant to withstand the strongest radiation of the core; the inside of the tube is used as a channel for the neutron flux measurement probe (miniature fission chamber). The measurement probe (miniature fission chamber) passes through different finger-tubes to complete the measurement of the neutron flux level of the entire core. [0003] The measuring probe is driven by a metal spiral cable. When the cable p...

AI Technical Summary

Problems solved by technology

[0015] 1. The cleaning process is complicated, the proportion of mechanical replacement of labor is low, the labor intensity is high, the cleaning effect is average, and the cleaning efficiency is low. It is difficult to clean the residue adsorbed on the inner wall of the finger sleeve, and radioactive dust is generated during the cleaning process, which is harmful to the environment. unfriendly;

[0016] 2. The structure of the cleaning equipment is complex, the manufacturing cost is high, the use is inconvenient, the cleaning effect is average, and the cleaning efficiency is low;

The length of the finger sleeve is 14-17m (meters), and the inner diameter is 5.2mm (millimeters). It is difficult to clean the residue adsorbed on the inner wall of the finger sleeve by mechanical scrubbing, and radioactive dust is generated during the cleaning process, which is not friendly to the environment.

Images