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Seawater-ice crystal two-phase flow pipeline erosion corrosion experiment device

A technology of erosion corrosion and experimental equipment, applied in the direction of measuring equipment, weather resistance/light resistance/corrosion resistance, weighing by removing certain components, etc., can solve the problems of less data, high erosion corrosion rate, dispersion, etc., and achieve structural Reasonable, scientific principle, high promotion and application value effect

Pending Publication Date: 2020-06-23
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 erosion and corrosion experiments of other solid particles on the elbow are mainly concentrated on the centerline of the outer arch of the elbow, the 45° position of the elbow, or a few special position measuring points on the elbow surface. The data obtained are few and scattered, and it is impossible to obtain the entire The erosion corrosion distribution of the elbow, and the erosion corrosion rate of the straight pipe section near the elbow is ignored (the erosion corrosion rate at this position is also relatively large), and there is little research on the erosion corrosion experiment of the straight pipe section near the elbow

Method used

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  • Seawater-ice crystal two-phase flow pipeline erosion corrosion experiment device
  • Seawater-ice crystal two-phase flow pipeline erosion corrosion experiment device
  • Seawater-ice crystal two-phase flow pipeline erosion corrosion experiment device

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Experimental program
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Effect test

Embodiment 1

[0024] The main structure of the seawater-ice crystal two-phase flow pipeline erosion corrosion experiment device involved in this embodiment is as follows figure 1 As shown, it includes the experimental pipeline 1, the water tank 2, the corrosion-resistant and wear-resistant pump 3, the electromagnetic flowmeter 4, the diaphragm pressure gauge 5 and the test elbow 6. The experimental pipeline 1 is led from the water tank 2 and connected to the corrosion-resistant and wear-resistant pump 3, The electromagnetic flowmeter 4, the diaphragm pressure gauge 5 and the test elbow 6 form a ring structure and then are connected back to the water tank 2. The test elbow 6 is located at the first turn of the test pipe 1; the test pipe 1 is also provided with a ball valve 7 and Check valve 8, ball valve 7 is located between water tank 2 and corrosion-resistant and wear-resistant pump 3, check valve 8 is located between corrosion-resistant and wear-resistant pump 3 and electromagnetic flowmeter...

Embodiment 2

[0027] During the experiment of the seawater-ice crystal two-phase flow pipeline erosion corrosion experiment device involved in this embodiment, the specific process is divided into three stages: pre-experiment preparation, erosion corrosion experiment and post-experiment treatment:

[0028] Cut the B10 copper-nickel alloy into a rectangular parallelepiped with a size of 8mm×6mm×5mm. On the rectangular parallelepiped, a screw hole for the screw 67 to pass through is opened. The oil is removed with acetone, and the grease in the screw hole is cleaned, and then 240#- Polish the surface with 1000# water matte paper, clean it with absolute ethanol, dry it in a vacuum drying oven for 12 hours after dehydration, and obtain the experimental sample; use an electronic balance with an accuracy of 0.01mg to weigh the mass of the experimental sample before the experiment; (weighing) In order to make the weighing data more accurate, before each weighing, the balance should be leveled and warm...

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Abstract

The invention belongs to the field of metal corrosion protection. The invention relates to a seawater-ice crystal two-phase flow pipeline erosion corrosion experiment device. A main body structure comprises an experiment pipeline, a water tank, a corrosion-resistant and wear-resistant pump, an electromagnetic flowmeter, a diaphragm pressure gauge and a test bent pipe. A large number of measuring points are arranged on the inner side of the detachable test bent pipe, erosion corrosion weight loss at different local positions of the bent pipe can be measured, erosion corrosion rate distributionat different positions of the bent pipe can be drawn, flowing of natural seawater and ice crystals and ice crystal distribution conditions can be observed through the transparent pipeline, and in addition, after the high-speed camera is additionally arranged, the movement and collision process of the ice crystals in the transparent pipeline can be shot; the experimental device is scientific in principle and reasonable in structure, has very high popularization and application values, can complete erosion corrosion experiments of the copper-nickel alloy seawater pipeline under the working condition of ice crystal-containing natural seawater, and realizes solid particle motion observation, particle distribution observation, erosion corrosion morphology test at different positions of the bentpipe and erosion corrosion weightlessness test in a two-phase flow pipeline.

Description

Technical field: [0001] The invention belongs to the field of metal corrosion protection, and relates to a seawater-ice crystal two-phase flow pipeline scouring corrosion experiment device to realize solid particle movement observation, particle distribution observation, and erosion corrosion morphology at different positions of the elbow in the two-phase flow pipeline Test and erosion corrosion weight loss test. Background technique: [0002] The Arctic has very important navigation resources. It connects the Pacific Ocean and the Atlantic Ocean geographically, and can provide navigation channels along the Eurasian coastline through the Kara Sea, the Laptev Sea, the East Siberian Sea, and the Chukchi Sea. The Arctic waterway mainly includes the Northeast Passage and the Northwest Passage. With global climate change, sea ice in the Arctic Ocean is rapidly retreating, and ice-free windows of different durations appear in the Northeast Passage and Northwest Passage every summer. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N3/56G01N3/06G01N5/04G01N17/00
CPCG01N3/565G01N3/068G01N3/06G01N5/04G01N17/002G01N17/006G01N2203/024G01N2203/0676G01N2203/0641
Inventor 彭文山段体岗刘少通郭为民侯健
Owner 725TH RES INST OF CHINA SHIPBUILDING INDAL CORP