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本文介绍为降低氢空白值而试制的一种用于脉冲炉的自动恒温循环冷却水装置。实验表明,在脉冲加热法定氢中采用这种装置,效果良好。和用自来水冷却相比,氢空白值可降低几倍到十几倍。 一、装置 自动恒温循环冷却水装置由自动恒温、水循环机构及箱体三部分组成。自动恒温部分包括:①1千瓦不锈钢加热棒(插入箱体的水中),②-30～70℃电接点温度计(插入箱体的水中),③2CT—3φ5两通电磁伐(一端接
This article describes an automatic constant temperature circulating cooling water unit for a pulsed oven trial to reduce hydrogen blank values. Experiments show that in the pulsed heating of the statutory hydrogen using this device, the effect is good. Compared with tap water cooling, hydrogen blank value can be reduced several times to ten times. First, the device automatically thermostatic circulating cooling water device consists of automatic thermostat, water circulation mechanism and the box of three parts. Automatic thermostat part includes: ① 1 kW stainless steel heating rod (inserted into the water box) ② -30 ~ 70 ℃ electrical contact thermometer (inserted into the water box) ③ 2CT-3φ5 two-way electromagnetic cutting