High temperature and high pressure corrosion electrochemical measuring device and measuring method

Abstract

The invention discloses a high temperature and high pressure corrosion electrochemical measuring device and a measuring method. The measuring device comprises a high pressure kettle heating jacket, a high pressure kettle body sleeved by the high pressure kettle heating jacket, and a high pressure kettle end cover fixed on the high pressure kettle body through a high pressure kettle fastening bolt, wherein a gas inlet, an exhaust port, a pressure gauge socket and a temperature measuring blind pipe socket are formed on the high pressure kettle end cover, and screw holes into which a reference electrode, a working electrode and an auxiliary electrode can be inserted are further formed on the high pressure kettle end cover; a gas inlet pipe at the gas inlet is provided with a gas inlet stop valve for opening/closing gas inletting; an exhaust pipe at the exhaust port is provided with a gas outlet stop valve for opening/closing the gassing; the invention further discloses the measuring method of the device; the measuring device is reliable and easy to realize, the problems that the high temperature and high pressure corrosion electrochemical measuring electrode is expensive in price, difficult in manufacturing and difficult in high temperature sealing are solved; the device disclosed by the invention is simple in manufacturing, good in sealing, and capable of meeting the corrosion electrochemical measurement in high temperature and high pressure environment.

Description

technical field [0001] The invention belongs to the technical field of high-temperature and high-pressure corrosion electrochemical measurement, and in particular relates to a high-temperature and high-pressure corrosion electrochemical measurement device and a measurement method. Background technique [0002] In the high temperature and high pressure water medium environment of power plant boilers and nuclear power steam generators, due to the concentration of corrosive impurities, the corrosion of heat exchange pipes is relatively common. Electrochemical measurement technology is an important means to evaluate the corrosion resistance, corrosion behavior and mechanism of materials. However, compared with the normal temperature and pressure system, electrochemical measurement under high temperature and high pressure conditions is more difficult, mainly because it is not easy to simultaneously realize the sealing of the measurement signal transmission wire and the high tempe...

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Problems solved by technology

[0003] In order to solve the above-mentioned problems in the prior art, the object of the present invention is to provide a high-temperature and high-pressure corrosion electrochemical measurement device and measurement method. Difficult and high-temperature sealing problems; the device of the present invention is simple to manufacture, has good sealing performance, and can meet the measurement of corrosion electrochemistry in high-temperature and high-pressure environments

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