Dehumidification system used for inhaul cable protection, anchoring and air inflow

A protective cover and air intake pipe technology, applied to bridge parts, bridge erection/assembly, measuring devices, etc., can solve potential safety hazards, hinder traffic operations, etc., prevent oxidation and corrosion, improve service life, and save maintenance and operating costs Effect

Pending Publication Date: 2020-09-11
SHANGHAI PUJIANG CABLE +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The cost of changing the cable will exceed the manufacturing cost of the stay cable itself by several times
In addition, the construction of the cable replacement will seriously hinder the traffic operation and cause safety hazards

Method used

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  • Dehumidification system used for inhaul cable protection, anchoring and air inflow
  • Dehumidification system used for inhaul cable protection, anchoring and air inflow
  • Dehumidification system used for inhaul cable protection, anchoring and air inflow

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Embodiment Construction

[0018] Specific embodiments of the present invention will be further described in detail below. It should be understood that the description of the embodiments of the present invention here is not intended to limit the protection scope of the present invention.

[0019] Such as Figure 1 to Figure 3 As shown, it is a schematic structural diagram of the dehumidification system used for cable protection and anchoring air intake provided by the present invention. The dehumidification system used for cable protection and anchoring air intake includes a cable body 10, an upper anchor protection mechanism 20 arranged on the cable body 10, and an upper anchor protection mechanism 20 arranged on the cable body 10. The lower anchor protection mechanism 30, and a control device 40 electrically connected with the upper and lower anchor protection mechanisms 20, 30. It is conceivable that the dehumidification system used for cable protection and anchoring air intake also includes other ...

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Abstract

A dehumidification system used for inhaul cable protection, anchoring and air inflow comprises an inhaul cable body, an upper anchorage device protection mechanism and a lower anchorage device protection mechanism. The upper anchorage device protection mechanism comprises an upper cable guide pipe, an upper anchorage device protection cover, an air inlet base, an air inlet pipe and a pressure sensor. The air inlet pipe is communicated with the inhaul cable body so as to press protective gas into the inhaul cable body. The lower anchorage device protection mechanism comprises a rainproof cover,a lower anchorage device protection cover, an air leakage base and a lower anchorage temperature and humidity sensor. The lower anchorage temperature and humidity sensor is used for detecting the temperature and humidity in the lower anchorage device protection cover, introducing protective gas from the air inlet pipe according to the temperature value and the humidity value, and then enabling the pressure in the inhaul cable body to reach a preset value under the monitoring of the pressure sensor. According to the dehumidification system for inhaul cable protection, anchoring and air inflow,oxidation corrosion of steel wires in the cable strands of the inhaul cable due to too high relative humidity can be prevented, so that the service life of the inhaul cable can be greatly prolonged,and the maintenance and operation cost of a bridge is saved.

Description

technical field [0001] The invention relates to the technical field of cable manufacture for bridges, in particular to a dehumidification system for cable protection, anchoring and air intake. Background technique [0002] Cables are the main load-bearing components of some bridges or other buildings, and the life of the cables also determines the life of the entire bridge. At present, the design life of cable-stayed bridges is more than 100 years, and its working environment is across rivers and seas, so its temperature and humidity change greatly, and the corrosion of the steel wires of the cables is also very severe. At present, the actual service life of cable-stayed cables for cable-stayed bridges is only about 20 years. The reason is that the main protection is achieved by galvanized steel wire protection, extruded double-layer high-density polyethylene on the outer layer, and filling grease in the cable body. However, in actual use, with the use of the cable, the ant...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E01D21/00E01D19/16G01D21/02
CPCE01D19/16E01D21/00G01D21/02
Inventor 汤亮张海良俞建群顾庆华何旭初
Owner SHANGHAI PUJIANG CABLE
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