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Corrosion protection situation detecting device

A detection device and corrosion protection technology, which is applied in the field of corrosion protection status detection devices, can solve problems such as protection potential measurement that is not suitable for structures, and achieve the effects of high potential stability, stability improvement, and high structural strength

Inactive Publication Date: 2011-09-07
725TH RES INST OF CHINA SHIPBUILDING INDAL CORP
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  • Abstract
  • Description
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  • Application Information

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Problems solved by technology

Chinese patent ZL03271343.6 discloses a simulation device for testing the potential and distribution of marine engineering structures, which can be used to measure the protection potential and its distribution, but it is mainly used for simulation experimental research, and is not suitable for seawater such as ballast tanks. Measurement of Protection Potential of Structures in Alternating Dry and Wet Environment

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  • Corrosion protection situation detecting device
  • Corrosion protection situation detecting device
  • Corrosion protection situation detecting device

Examples

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Embodiment 1

[0020] This embodiment adopts a compact design, and the main structure includes a pressure-resistant housing 1, a sealing ring 2, an end cover 3, a multi-core cable installation hole 4, a central control chip 5, a data acquisition control module 6, a signal amplification and filter chip 7, Data conversion chip 8, data storage module 9, power supply control chip 10, high-efficiency power supply 11 and sensor probe 12; one end of the hollow cylindrical pressure-resistant shell 1 made of metal material die-casting is formed with a conical protruding point, and the other One end is formed with a matching round end cover 3 with a sealing ring 2, and the center of the end cover 3 is symmetrically formed with cable installation holes 4 on both sides; The electric circuit communicates with the multi-head sensor probe 12 through the cable installation hole 4 through a multi-core cable; the sensor probe 12 is connected to the internal circuit by a multi-core waterproof cable, and the pre...

Embodiment 2

[0025] This embodiment is composed of the potential data measurement and storage unit and the measuring electrode probe fixed in the pressure-resistant housing 1. It adopts a simplified structure of corrosion-resistant, pressure-resistant and waterproof seal, and the external dimensions are 110mm×600mm, weight 10kg, no need for external power supply (low power consumption, driven by built-in battery), connected with 20 high-stability silver / silver chloride reference electrodes, the detection device is installed and fixed on a ship with seawater pressure On the bilge plate of the load tank, the reference electrode potential detection probes are more evenly fixed on different parts of the ballast tank that need to be measured; the frequency of potential data collection is selected as 1 time per day; The seawater ballast tank is protected by epoxy coating and aluminum alloy sacrificial anode; when the ballast tank is loaded with seawater, the pressure sensor triggers the detectio...

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Abstract

The invention relates to a device for automatically detecting and recording storing the metal structure erosion protective state in the sea water alternation of wetting and drying or deep sea environment, belonging to the detecting device for the erosion protective state in the technical field of the electrochemistry protection. The inner-hollow columnar pressure-resistant shell cavity molded by the metal material is manufactured with inner control circuit with a data collecting unit; one end has the sealed cone protrude peak; another end has the matched circular top cover of the sealed ring;the sides of the central of the top cover are symmetrically arranged with cable installing holes; the inner control circuit is communicatively-connected to the multi-head sensor probe via the multi-chip cable and through the cable installing holes, measuring the protective parameter and the pressure and the temperature to obtain the level influence caused by the pressure and the temperature; the invention achieve the dynamic measurement and storage, obtaining the surface level distribution of the structure, and judgement and analysis; the structure is novel; and the installment is simple; theinvention has an extensive application scope and high automation, low cost, light weight, which is convenient to carry and repeatedly install and use.

Description

Technical field: [0001] The invention relates to an automatic detection and recording storage device for the corrosion protection state of metal structures in the environment of alternating dry and wet seawater, in particular to a device that can be used to evaluate the protection effect in the technical field of electrochemical protection and provide a basis for the improvement of corrosion protection measures Corrosion protection status detection device. Background technique: [0002] At present, cathodic protection technology is an important means to solve the corrosion of metal materials, and has been widely used in the corrosion protection of ships, docks, offshore oil platforms and other facilities. The effect of cathodic protection is generally judged by measuring the electrode potential. Through the detection of cathodic protection potential and its distribution, not only can we understand the protected state of metal structures, but also provide important guidance f...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N17/02
Inventor 郭为民许立坤程文华
Owner 725TH RES INST OF CHINA SHIPBUILDING INDAL CORP
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