High temperature high pressure acoustic emission electrochemistry simulation experiment apparatus capable of loading stress
A simulation experiment device, high temperature and high pressure technology, applied in the direction of material analysis, measurement device, scientific instrument, etc. using the acoustic emission technology, can solve the problem of the electrochemical corrosion rate of the acoustic emission signal, etc., to achieve practical design, avoid attenuation, Guaranteed reproducibility
Inactive Publication Date: 2013-07-31
BC P INC CHINA NAT PETROLEUM CORP +1
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[0005] The present invention provides a high-temperature and high-pressure acoustic emission electrochemical simulation experiment device capable of loading stress to solve the problem of the relationship between the acoustic emission signal and the electrochemical corrosion rate that cannot be obtained under actual production conditions (high temperature, high pressure, and stress). question
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[0041] In order to have a clearer understanding of the technical features, purposes and effects of the present invention, the specific implementation manners of the present invention will now be described with reference to the accompanying drawings.
[0042] like Figure 5 As shown, the high-temperature and high-pressure acoustic emission electrochemical simulation experimental device capable of loading stress according to an embodiment of the present invention includes:
[0043]An autoclave, the autoclave has an inner cavity, and a test piece 5 is arranged in the inner cavity. The autoclave uses high-temperature-resistant glass fiber reinforced plastics with high strength, corrosion resistance, light weight, electrical insulation, and low thermal conductivity, and can be heated at 150 ° C. The following long-term use can not only meet the strength requirements of high-voltage resistance, but also realize the electrical insulation between the test piece and the surrounding con...
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The invention provides a high temperature high pressure acoustic emission electrochemistry simulation experiment apparatus capable of loading stress. The apparatus comprises: a pressure kettle, wherein the pressure kettle is provided with an inner cavity, and a specimen is arranged inside the inner cavity; stretching test systems installed on both ends of the specimen, wherein the tension test system stretches the specimen, tests and obtains tension and a strain signal of the specimen; a solution circulation inflation system connected with the inner cavity of the pressure kettle and provided for providing a solution required by an experiment for the pressure kettle; acoustic emission probes arranged on both ends of the specimen and provided for testing an acoustic signal of the specimen; an electrochemistry test system connected with the specimen and the pressure kettle, and provided for applying polarization current on the specimen to carry out polarization, testing and obtaining an electrochemistry signal; and a data collector for collecting the simultaneously measured strain signal, the electrochemistry signal and the acoustic emission signal. With the present invention, controllable pressurizing, controllable heating and controllable inflation can be performed, and an actual working condition of the on-site material is well simulated.
Description
technical field [0001] The invention relates to the technical field of non-destructive testing, in particular to a high-temperature and high-pressure acoustic emission electrochemical simulation experiment device capable of loading stress. Background technique [0002] Equipment pipelines in petroleum, petrochemical, nuclear industry, electric power and other industrial fields have been used in high temperature, high pressure, and multi-corrosive medium environments for a long time. Electrochemical corrosion and stress corrosion cracking (SCC) of equipment pipelines are the main causes of damage. Thin, perforated, cracked, ruptured, etc. may cause leakage of toxic, high temperature, flammable, explosive, and radiative media, which in turn may cause fire and explosion, environmental pollution, casualties, property damage, and other accidents, seriously threatening the safe production of enterprises. [0003] As the main means of corrosion research, electrochemical technology ...
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IPC IPC(8): G01N17/02G01N29/14G01N3/56
Inventor 罗方伟孙文勇牛蕴赵永涛胡家顺刘文才梁爽马红玉
Owner BC P INC CHINA NAT PETROLEUM CORP
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