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Sea ship seawater pipeline stray current detection device

A technology of stray current and detection device, which is applied in the direction of current indication, voltage polarity indication, and measurement using digital measurement technology to achieve the effect of eliminating the hidden danger of stray current and facilitating installation.

Active Publication Date: 2016-01-06
725TH RES INST OF CHINA SHIPBUILDING INDAL CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The mature stray current products on the market are produced by British Radiodetection Company, German Siemens Company, and Swiss Sechron Company. There are also domestic companies that are tracking and preparing related equipment and applying them to soil pipelines and subways. Products for seawater pipeline stray currents are also available. No

Method used

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  • Sea ship seawater pipeline stray current detection device
  • Sea ship seawater pipeline stray current detection device
  • Sea ship seawater pipeline stray current detection device

Examples

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Embodiment Construction

[0022] like figure 1 , figure 2 and image 3 As shown, a device for detecting stray currents in seawater pipelines of marine ships includes a water pipe section 1 connected to the original seawater pipeline 5 through a flange 6, and an integrated detection module 2 arranged on the outer wall of the water pipe section 1 . The material of the water pipe section 1 can be copper alloy, titanium alloy and other metal materials resistant to seawater erosion and corrosion, and the pipe diameter ranges from 30 to 100 mm to match the size of the original seawater pipeline 5 at the deployment location.

[0023] The end faces and outer surfaces on both sides of the water pipe section 1, the surface of the flange 6 and the bolt holes are all provided with an insulating coating 4 for strict insulation treatment. For coatings with similar insulating effects such as tetrafluoroethylene coatings, the thickness of the insulating coating should be controlled at 2 to 5 mm.

[0024] The surf...

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Abstract

The invention provides a sea ship seawater pipeline stray current detection device. The sea ship seawater pipeline stray current detection device comprises a water supplying pipe segment connected with an original seawater pipeline through a flange and an integrated detection module arranged on the outer side wall of the water supplying pipe segment. Two side end surfaces, a flange surface and bolt holes of the water supplying pipe segment are respectively provided with an insulating coating. The integrated detection module comprises a current fettering unit, a weak current detection unit, an accumulation unit, an over-current alarm unit and a display unit. The current fettering unit is mainly based on an idea of first insulation and then local connection, two ends of the water supplying pipe segment are electrically connected with the original seawater pipeline through metal wires or alloy wires excellent in electric conductivity; the surface of the integrated detection module is covered by an electromagnetic shielding layer; and a reinforcing pipe segment is arranged on the outer layer of the electromagnetic shielding layer. The sea ship seawater pipeline stray current detection device can be used for realizing sea ship seawater pipeline stray current detection; and according to the magnitude and direction of a detected current, a stray current source is effectively searched, and stray current corrosion of the pipeline is effectively controlled.

Description

technical field [0001] The invention relates to a stray current detection device, in particular to a sea water pipeline stray current detection device applied to ocean ships. Background technique [0002] Stray current refers to the current flowing outside the designed or specified circuit. Stray currents generally have a source of current leakage, and the current is then transported along the metal conduit. When current flows from a metal surface into the soil or electrolyte, stray current corrosion occurs at the location where the current flows. Stray current corrosion has the characteristics of high corrosion intensity, great harm, and strong randomness. Stray current corrosion occurs frequently in urban infrastructure such as subways, light rails, and underground pipelines, and in the fields of ships and ocean engineering, and has caused serious consequences. The control method of stray current is fundamentally to eliminate the source of stray current and isolate all ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01R19/25G01R19/14
Inventor 刘广义张繁李亮黄国胜李相波闫永贵孙明先
Owner 725TH RES INST OF CHINA SHIPBUILDING INDAL CORP
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