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Device for detecting erosion corrosion of reducing pipe and detection method thereof

A technology for erosion corrosion and reducer pipes, which is applied in the field of erosion corrosion detection devices, can solve the problems that the erosion corrosion characteristics of reducer pipes and the interaction between erosion and corrosion cannot be characterized, and there are few researches on erosion corrosion of reducer pipes.

Pending Publication Date: 2020-05-12
TIANJIN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Liu Jianguo and others studied the effect of flow velocity on erosion corrosion of 90° elbow (Liu J G, BaKeDaShi W L, Li Z L, et al, Effect offflow velocity on erosion–corrosion of 90-degree horizontal elbow, Wear, 2017,376:516-525 ), Jin et al. studied the failure of three-way pipe fittings under the condition of multiphase flow erosion corrosion (Jin H, ChenX, Zheng Z, et al, Failure analysis of multiphase flow corrosion-erosion with three-way injecting water pipe, Engineering Failure Analysis ,2017,73:46-56), but there are few studies on the erosion corrosion of reducers, and the existing experimental devices cannot characterize the erosion corrosion characteristics and the interaction between erosion and corrosion in different local areas of reducers. Reducer shows great limitations in erosion corrosion

Method used

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  • Device for detecting erosion corrosion of reducing pipe and detection method thereof
  • Device for detecting erosion corrosion of reducing pipe and detection method thereof
  • Device for detecting erosion corrosion of reducing pipe and detection method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0034] A device for detecting erosion corrosion of a reducer, comprising a test device and a reducer portion,

[0035] The test device includes a screw pump 1, a control cabinet 2, a water tank 4, a flushing chamber 6 and an electrochemical test recording device. The water outlets are connected, and the water outlet of the screw pump 1 is connected with the water inlet of the flushing chamber 6 through the flushing water inlet pipeline 15, and the water outlet of the flushing chamber 6 is connected with the water inlet of the water tank 4 through the flushing water outlet pipeline 16. The pipe part is installed in the flushing chamber 6, and the reducing pipe part is connected with the flushing water inlet pipeline 15, and the electrochemical test recording device is connected with the reducing pipe part through the test wire;

[0036]The reducer part comprises a reducer mold 17, a large end groove, a variable diameter groove, a small end groove and a connector 13, and a large...

Embodiment 2

[0039] On the basis of Embodiment 1, the number of different-diameter tube molds 17 is 4, 6 or 8, the surface of the working electrode 10 is flush with the inner surface of the pipe diameter of the different-diameter tube mold 17, and the working electrode 10 is encapsulated by epoxy resin In the large end groove, the variable diameter groove and the small end groove of the reducing pipe mold 17.

Embodiment 3

[0041] On the basis of Embodiment 2, the screw pump 1 adopts an adjustable screw pump, which can adjust the flow rate of the medium in the control pipeline. A flow meter 3 is provided on the flushing water inlet pipeline 15, and a flow meter 3 is also provided in the water tank 4. The solution is mixed homogeneously with a blender 5.

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Abstract

The invention provides a device for detecting erosion corrosion of a reducing pipe and a detection method thereof. The device comprises a test device and a reducing pipe part, the test device comprises a screw pump, a control cabinet, a water tank, a scouring chamber and an electrochemical test recording device, the screw pump is arranged below the control cabinet; a water inlet of the screw pumpis communicated with a water outlet of the water tank through a water inlet pipeline; a water outlet of the screw pump is connected with a water inlet of the scouring chamber through a scouring waterinlet pipeline; wherein a water outlet of the scouring chamber is communicated with a water inlet of the water tank through a scouring water outlet pipeline, the reducing pipe part is installed in thescouring chamber and communicated with the scouring water inlet pipeline, and the electrochemical test recording device is connected with the reducing pipe part through a test wire. According to thedevice, erosion corrosion weightlessness testing and electrochemical testing of the reducing pipe are conducted at the same time, and real-time, multi-point and in-situ electrochemical measurement isachieved at different positions of the reducing pipe.

Description

technical field [0001] The invention relates to the technical field of erosion corrosion detection devices, in particular to a device for detecting erosion corrosion of different diameter pipes and a detection method thereof. Background technique [0002] At present, the experimental devices used to study pipeline erosion corrosion mainly include spray experimental devices, rotary experimental devices and pipe flow experimental devices (Rajahram S S, Harvey T J, Wood R J K, Erosion–corrosion resistance of engineering materials in various test conditions, Wear, 2009,267(1-4): 244-254); Different experimental devices, experimental methods and research methods are different. The jetting experimental device can simulate the erosion and corrosion process at any erosion speed and angle, but it cannot simulate the actual working conditions well, and the erosion intensity is greater than the actual situation, which has a certain gap with the actual erosion conditions of pumps and pi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N3/56G01N27/416G01N17/02
CPCG01N3/567G01N27/416G01N17/02G01N2203/024G01N2203/0274G01N2203/0617G01N2203/0676
Inventor 王吉会刘静波胡文彬
Owner TIANJIN UNIV
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