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Sacrificial anode deep sea performance in-situ testing apparatus and sacrificial anode deep sea performance in-situ testing method

A sacrificial anode, in-situ testing technology, applied in the measurement device, by removing certain components, weighing, instruments, etc., can solve the problems of measurement result error, limited measurement time, inability to fully simulate the real environment of the deep sea, etc., to achieve continuous Measurement, the effect of long working hours

Inactive Publication Date: 2017-12-22
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

[0007] (1) The existing deep-sea in-situ test technology cannot meet the long-term test requirements for sacrificial anode performance: the power supply cannot guarantee the long-term measurement requirements during unattended measurement; the mother ship and umbilical cable guarantee are required for manned monitoring, and the measurement time is limited
[0008] (2) The working voltage and current of the sacrificial anode cannot be continuously measured, and the long-term performance evaluation of the sacrificial anode cannot be realized
[0009] (3) The laboratory simulation test results cannot fully simulate the real environment of the deep sea, and there are errors in the measurement results

Method used

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  • Sacrificial anode deep sea performance in-situ testing apparatus and sacrificial anode deep sea performance in-situ testing method

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Experimental program
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Embodiment 1

[0062] as attached figure 1 As shown, a sacrificial anode deep-sea performance in-situ testing device of the present invention includes a pressure-resistant sealed cabin 1 , a sacrificial anode performance testing module 2 , an electrode probe assembly 4 and a power supply 3 . Among them, the sacrificial anode performance test module 2 is located in the pressure-resistant sealed cabin 1; the electrode probe assembly 4 is integrated on the outside of one end of the pressure-resistant sealed cabin 1, and is in contact with seawater corrosion liquid; the sacrificial anode performance test module 2 is connected by the power supply 3 Power is supplied and connected to the electrode probe assembly 4 through a watertight cable 5 .

[0063] 1.1 Pressure-resistant sealed cabin 1

[0064] The pressure-resistant sealed cabin 1 includes a cylinder body and an end cover. The inside of the cylinder body is hollow, and the end part is tightly matched with the end cover to form a waterproof ...

Embodiment 2

[0084] An in-situ test method for sacrificial anode deep-sea performance of the present invention is based on the in-situ test device for sacrificial anode deep-sea performance in Embodiment 1, and specifically includes the following steps:

[0085] Assemble the watertight joint 6 to the inner end cap 121 by thread, then install the support rod 123 on the watertight joint 6 by thread, then fix the sacrificial anode performance testing module 2 on the support rod 123 through the nut, and again set the performance of the sacrificial anode The test end and the power supply end of the test module 2 are respectively connected to the watertight joint 6 through a signal cable and a power cable, and finally the inner end cover 121 is installed to the inner cylinder 122 through threads.

[0086] Insert the inner sealing cylinder 12 into the outer sealing cylinder 11 through the fixing ring 124, then connect the watertight joint 6 of the inner sealing cylinder 12 with the watertight join...

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Abstract

The present invention provides a sacrificial anode deep sea performance in-situ testing apparatus and a sacrificial anode deep sea performance in-situ testing method, and belongs to the technical field of deep sea corrosion protection and cathode protection. The testing apparatus comprises a pressure-resistant sealing cabinet, a sacrificial anode performance testing module positioned in the pressure-resistant sealing cabinet, an electrode probe assembly integrated at the outer portion of the pressure-resistant sealing cabinet and contacting a seawater corrosion liquid, and a power supply, wherein the pressure-resistant sealing cabinet is a waterproof sealing structure formed by matching a cylinder and end covers in a sealed manner, and the sacrificial anode performance testing module is connected to the power supply, is electrified by the power supply, and is electrically connected to the external electrode probe assembly through a water sealing electric cable. According to the present invention, with the apparatus and the method, the in-situ, self-sustaining, long-time and continuous measurement of the sacrificial anode deep sea environment working potential and the working current can be achieved, the characteristics of high-pressure resistance and long working time can be provided, the service performance of various types of sacrificial anodes in deep sea environments can be deep studied, and the technical support can be provided for the deep sea engineer equipment cathode protection design and the efficient deep sea anode development.

Description

technical field [0001] The invention relates to a sacrificial anode deep-sea performance in-situ test device and a test method, which belong to the technical field of deep-sea corrosion protection and cathodic protection, and are widely used in the measurement of sacrificial anode working potential, working current and current efficiency, especially deep-sea performance testing. Background technique [0002] The deep sea is rich in oil, natural gas and combustible ice resources, which has become a research hotspot in the 21st century. Breakthroughs have been made in deep sea oil and gas development technology, and a large number of deep sea engineering equipment has been put into use. Corrosion is a common problem faced by marine engineering equipment, and sacrificial anode protection is one of the most effective ways to solve equipment corrosion. Zinc alloy sacrificial anodes, aluminum alloy sacrificial anodes, magnesium alloy sacrificial anodes, and iron alloy sacrificial a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N5/04G01N17/00
CPCG01N5/04G01N17/006
Inventor 侯建邢少华郭为民张海兵
Owner 725TH RES INST OF CHINA SHIPBUILDING INDAL CORP