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  • 氢气发生器的使用方法
  • 本站编辑:上孰机电设备(上海)有限公司发布日期:2019-11-29 18:46 浏览次数:

氢气发生器的使用方法

  氢气发生器由电解池、纯水箱、氢/水分离器、收集器、干燥器、传感器、压力调节阀、开关电源等部件组成。只电解纯水即可产氢。通电后,电解池阴极产氢气,阳极产氧气,氢气进入氢气发生器。氧气排入大气。氢气发生器将氢气和水分离。氢气进入干燥器除湿后,经稳压阀、调节阀调整到额定压力(0.02~0.45Mpa可调)由出口输出。电解池的产氢压力由传感器控制在0.45Mpa左右,当压力达到设定值时,电解池电源供应切断;压力下降,低于设定值时电源恢复供电。

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  氢气发生器的使用方法:

  氢气发生器开机时,先用原料氢置换系统,从阀3放空,待系统内的高纯氮置换干净后,根据用户的原料氢内的含氢量和所需高纯氢量,参照表一数据,来选定操作温度、操作压力和驰放气量,然后再通电加热钯管,从阀2流出高纯氢。调温方法,可根据随机所带的说明书进行温度设定。从钯扩散制得的高纯氢到实际获得的高纯氢,尚需要置换阀2前管线的一段时间,通常约需2—3小时。由于氢气发生器在出厂前,都要经过产品质量检验,因此阀1和阀3管线内,充有高纯氮,阀2到管线前那段管线充有高纯氮。当氢气发生器停止使用时,应先停电,待装置冷却后各阀门都关闭再停气,以便在下次使用时减少置换系统的时间。我们对氢气发生器用合成氨原料气和电解氢做氢气源时,测得的操作温度、操作压力及驰放气量对氢气发生器纯化氢量的一些数据用户可根据自己的情况参考本表的数据来选择合适的操作条件。一般认为在钯管厚度一定的情况下,进出口压力差越大,温度越高,则氢的渗透量越大,但平均压力以8—3公斤/厘米2,操作温度为300—400℃为宜。

Use of hydrogen generators

Hydrogen generator is composed of electrolytic tank, pure water tank, hydrogen/water separator, collector, dryer, sensor, pressure regulating valve, switching power supply and other components. Hydrogen can be produced by electrolysis only of pure water. After electrification, the cathode of the electrolytic cell produces hydrogen, the anode produces oxygen, and the hydrogen enters the hydrogen generator. Oxygen is discharged into the atmosphere. A hydrogen generator separates hydrogen from water. After the hydrogen enters the dryer for dehumidification, it is adjusted to the rated pressure (adjustable from 0.02 to 0.45mpa) by the pressure regulator and regulating valve and then exported. The hydrogen production pressure of the electrolytic cell is controlled by the sensor at about 0.45mpa. When the pressure reaches the set value, the power supply of the electrolytic cell is cut off. When the pressure drops below the set value, the power supply will resume.

Usage of hydrogen generator:

Hydrogen generator powered on, first with the raw material of hydrogen displacement system, from the three empty, stay in the system of high purity nitrogen replacement after clean, according to user's raw materials needed for high purity hydrogen and hydrogen content in hydrogen content, reference to a data table, to the selected operating temperature, operating pressure and chi put gas, then electric heating tube, palladium from valve 2 high purity hydrogen. The temperature control method can be set according to the manual. From the high purity hydrogen obtained by palladium diffusion to the actual high purity hydrogen obtained, it still needs a period of time in the pipeline before the replacement valve 2, usually about 2-3 hours. Since the hydrogen generator has to pass the product quality inspection before leaving the factory, the pipelines of valve 1 and valve 3 are filled with high pure nitrogen, and the pipelines from valve 2 to the front of the pipeline are filled with high pure nitrogen. When the hydrogen generator is not in use, the power should be cut off first. After the device is cooled, all valves are closed and then the gas is stopped, so as to reduce the time for replacing the system in the next use. When we use synthetic ammonia feedstock gas and electrolytic hydrogen as hydrogen source for hydrogen generator, the measured operating temperature, operating pressure and droop discharge volume are used. For some data of purified hydrogen volume of hydrogen generator, users can refer to the data in this table to choose the appropriate operating conditions. It is generally believed that in the case of a certain palladium tube thickness, the greater the pressure difference between the inlet and outlet, the higher the temperature, the greater the amount of hydrogen penetration, but the average pressure of 8 -- 3 kg/cm 2, the operating temperature of 300 -- 400℃ is appropriate.