Air inlet pipe structure for dry air dehumidification and implementation method thereof

Abstract

The invention discloses an air inlet pipe structure for dry air dehumidification and an implementation method thereof. A plurality of air outlets are formed in the pouring-anchorage face of an upper anchorage device on a pulling cable, and an air outlet port of the air inlet pipe extends to close to the pouring-anchorage face of a lower anchorage device on the pulling cable. In this way, the dry air dehumidification effect of the pulling cable, especially a long pulling cable is effectively improved. The defect of the pulling cable dry air dehumidification system is effectively overcome; the pulling cable dehumidification efficiency is improved; air inlet pressure is reduced; energy source is saved; and the industrial utility value is achieved.

Description

technical field [0001] The invention relates to the technical field of bridge engineering, in particular to a dry air dehumidification intake pipe structure for bridge cables and a realization method thereof. Background technique [0002] Cable-stayed bridge is one of the important forms of design and application of modern long-span cable-carried bridge structure, and the cable is the core component of the structure, and its load-bearing and load-transmitting capacity is the key to the safe operation of the bridge. High-strength steel wire is the main body of the cable, and its performance is often degraded until failure due to its corrosion during the load-bearing process. Dry air dehumidification technology is to input dry air into the main cable of the suspension bridge through the Roots blower to reduce the humidity in the main cable and effectively prevent the corrosion of the main cable steel wire. It has been successfully used in the humidity control of the main cable...

AI Technical Summary

Problems solved by technology

However, the application of dry air dehumidification technology for cables of cable-stayed bridges has not been found so far

[0003] For the dry air dehumidification technology of the cable, the invention patent of the authorized announcement number CN103174092A (patent number: ZL201310072105.3) discloses a cable structure that can be filled with dry air and its realization method. The air inlet and outlet stainless steel pipes are respectively installed, and the dry air can be input through the steel pipes to dehumidify the interior of the cable body. Rapid loss of gas pressure, especially for longer and larger cables

Usually, the humidity in the cable body is small in the upper part and higher in the lower part, and when the dry air reaches the lower part of the cable body, the gas pressure loss is very large, which is not conducive to the removal of humidity in the cable body, which leads to low dehumidification efficiency and effect of the cable body

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