加氢反应器器壁中可移动原子氢浓度探测电化学氢探头

ELECTROCHEMICAL HYDROGEN PROBE FOR DETECTING CONCENTRATION OF MOBILE ATOMIC HYDROGEN IN THE WALL OF HYDROGENATION REACTOR

应用Devanathan-Stachurski电化学氢渗透速率的测定原理和杜元龙的发明专利；研制了一种在加氢反应器上使用的电化学氢探头（HR型氢探头）该探头在循环冷却水温低于323K的温度以下变化时．其背景电流密度小于0．6μA·cm－2．温度对稳态氢渗透电流密度有较大的影响，测量过程中需要恒定氢探头的温度，经对HR型氢探头标定，用i∞＝1195iH表示稳态氢渗透电流密度．能精确地计算出金属材料中可移动原子氢的浓度。

Based on the principle of Devanathan-Stachurski cell and the patent by Yuanlong Du,an electrochemical hydrogen probe (Model HR probe) used to detect atomic hydrogen content in the wall of hydrogenation reactor was developed. The base current density of the probe is less than 0.6 μA.cm-2below 323 K cyclic water which cooled the probe. The temperature of the cyclic water influences the permeation current density at the steady state strongly. Therefore, the probe temperature should be kept constant during the measurement. Calibrated by a Devanathan-Stachurski cell, a precise value of the current density of atomic hydrogen oxidation reaction could be obtained by the equation i∞=1.195iH,where too is the steady current density of atomic hydrogen oxidation and iH the current density obtained from Model HR probe directly. The presented probe could be applied to measure the hydrogen content in the structures with high temperature.