Underground ventilation structure for radioactive waste cavern disposal and ventilation and filtration method

Abstract

The invention discloses an underground ventilation structure for radioactive waste cavern disposal and a ventilation and filtration method. The underground ventilation structure comprises a mechanical fan room, a filtration fan room and a natural ventilation air duct, wherein the mechanical fan room, the filtration fan room and the natural ventilation air duct are arranged in the same excavation cavern; the mechanical fan room is arranged on the rear side of an air inlet tunnel; the filtration fan room is positioned on the rear side of the mechanical fan room; the filtration fan room is arranged on the front side of an air exhaust tunnel; the natural ventilation air duct is positioned on the upper half part of the cavern and is positioned on the upper parts of the mechanical fan room and the filtration fan room; and a fan is arranged in the mechanical fan room. According to the structure provided by the invention, in the same excavation cavern, natural ventilation, mechanical ventilation, filtration ventilation and building (structure) integration are realized by utilizing the spatial height difference of local expanding excavation and front-and-back sequential position integration, the construction scale and excavation size of an underground cavern group are reduced to the greatest degree, and high technical and economic performance can be obtained.

Description

technical field [0001] The invention belongs to the technical field of rock cave disposal engineering for low- and medium-level radioactive solid waste, and in particular relates to an underground ventilation structure structure and a ventilation filtering method for radioactive waste rock cave disposal. Background technique [0002] The cavern disposal project for solid waste with low and medium radioactive levels is set in an underground closed space, and there are personnel activities in the underground cavern system during the operation period. In order to ensure the safety of cavern disposal and personnel operation, an underground ventilation system should be installed. The system needs to meet: 1. The concentration requirements of harmful gases in the air during the operation period; 2. Air humidity requirements; 3. Radioactive aerosol filtration and treatment requirements; 4. , green energy saving and environmental protection requirements. Therefore, the application ...

AI Technical Summary

Problems solved by technology

[0004] The present invention makes full use of the space effect of the underground cavern, and in a single cavern, carries out the integrated arrangement of the natural ventilation channel, the mechanical ventilation channel and its equipment, and the radioactive gas filtering equipment system, and overcomes the fact that the existing single ventilation technical scheme cannot meet the needs of disposal in the cavern. Insufficient requirements for ventilation, filtration and energy saving, providing an underground ventilation structure structure and ventilation filtration method for radioactive waste cavern disposal

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