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Power transmission line concrete rod weld joint corrosion prevention method

A technology for transmission lines and concrete poles, which is applied in the field of high-voltage transmission line operation, maintenance, and overhaul equipment to achieve obvious anti-corrosion, improved anti-corrosion performance, and durable material selection

Inactive Publication Date: 2013-01-30
ELECTRIC POWER RES INST STATE GRID JIANGXI ELECTRIC POWER CO +1
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004]The exposed welds of common concrete poles are susceptible to corrosion by various corrosive gases in the atmosphere, ultraviolet rays and frosty rainwater

Method used

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  • Power transmission line concrete rod weld joint corrosion prevention method
  • Power transmission line concrete rod weld joint corrosion prevention method
  • Power transmission line concrete rod weld joint corrosion prevention method

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Embodiment Construction

[0016] The specific embodiment of the present invention is as figure 1 , figure 2 shown.

[0017] The embodiment of the present invention adopts the concrete pole welding seam protection device to protect the concrete pole welding seam of the power transmission line. The weld protection device for concrete rods is composed of two left-right symmetrical semicircular protective covers 1. The semicircular protective covers 1 are made of cast aluminum. The outer diameter of the rod is the same, the upper and lower ends of the inner cylindrical surface of the semicircular cylindrical protective cover 1 are processed with grooves perpendicular to the semicircular cylindrical surface along the inner arc surface; the sealing ring 2 with a rectangular cross section is embedded in the protective cover In the grooves on the inner surface of the upper and lower ends, evenly tighten the protective cover to fasten the lock, and wrap the protective device tightly around the weld of the c...

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Abstract

The invention discloses a power transmission line concrete rod weld joint corrosion prevention method. According to the method, a protection device with the inner diameter equal to the outer diameter of a concrete rod and being provided with upper and lower seal rings is adopted to isolate the corrosive damage from corrosive gases of all kinds outside, ultraviolet as well as frost and rain water to the weld joints and the metal at the heat affected zone of the weld joints of the power transmission line concrete rod so as to improve the corrosion resistance of the concrete rod. The method has an obvious effect of preventing the corrosions at the weld joints and the metal at the heat affected zones of the weld joints of the power transmission line concrete rod, and can effectively prevent power failure in large area caused by collapse of the power transmission line concrete rod due to the cracking of the concrete rod caused by corrosion of the weld joints. Therefore, the method can improve the production safety level of power transmission and distribution. The method is applicable for protection for weld joints of power transmission line concrete rods and concrete frames of transform substations.

Description

[0001] technical field [0002] The invention relates to a metal anticorrosion protection method for the weld seam of a concrete pole of a power transmission line and the heat-affected zone of the weld seam, and belongs to the technical field of high-voltage power transmission line operation maintenance and overhaul equipment. Background technique [0003] Concrete poles are indispensable and important components in transmission and distribution networks and substations. In the technical field of high-voltage transmission line operation, maintenance and repair equipment, concrete pole weld seam anticorrosion is an important guarantee for the safe production of transmission and distribution lines. Its safe operation is directly related to the power grid. Safety and stability and reliability of power supply to users. [0004] The exposed welds of general concrete poles are susceptible to corrosion by various corrosive gases in the atmosphere, ultraviolet rays, and frost and...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E04B1/64E04H12/12
Inventor 焉华赵康文涂湛
Owner ELECTRIC POWER RES INST STATE GRID JIANGXI ELECTRIC POWER CO
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