A stray current detection device for seawater pipelines of marine ships

A stray current detection device technology, applied in the direction of current indication, voltage polarity indication, measurement using digital measurement technology, etc., to achieve the effect of eliminating hidden dangers of stray current and convenient installation

Active Publication Date: 2018-09-04
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

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  • A stray current detection device for seawater pipelines of marine ships
  • A stray current detection device for seawater pipelines of marine ships
  • A stray current detection device for seawater pipelines of marine ships

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Embodiment Construction

[0022] Such as figure 1 , figure 2 with image 3 As shown, a marine vessel seawater pipeline stray current detection device includes a water pipe section 1 connected with a raw seawater pipeline 5 through a flange 6 and an integrated detection module 2 arranged on the outer side 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 surface and outer surface of the water pipe section 1, the surface of the flange 6 and the bolt hole are provided with an insulating coating 4 for strict insulation treatment. The insulating coating of this embodiment adopts a polyether ether ketone coating, or polyether For coatings with similar insulating effects such as tetrafluoroethylene coating, the thickness of the insulatin...

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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 seawater pipeline stray current detection device applied to marine ships. Background technique [0002] Stray current refers to the current flowing outside of the designed or specified circuit. Stray current generally has a current leakage source, and the current is then transmitted along the metal pipe. When current flows from the 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 intense corrosion, high intensity, great harm, and strong randomness. Stray current corrosion occurs frequently and causes serious consequences in urban infrastructure such as subways, light rails, underground pipelines, ships, and marine engineering. The control method of stray current is fundamentally to eliminate the source of stray current and isolate all possible stray currents flo...

Claims

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Application Information

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Patent Type & Authority Patents(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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