Whether it is a split generator or a combined generator, it is necessary to dry and purify the output gas, that is, dehumidification and dehydrogenation (or degreasing). Here are two ways to install the hydrogen generator filter tube. .

First, the vertical type: the inlet and outlet of the hydrogen generator purification tube are at the bottom of the instrument, and the opening is upward.
1. The liner is filled in the purification pipe, and the adsorbent is charged into the liner. The hydrogen generator gas is first adsorbed by the adsorbent and then passed through the gap between the clean pipe and the liner to the bottom of the purification pipe. This method is subject to the structure and processing technology. Influence, the hydrogen generator liner is not easy to be taken out of the purification tube, and even the gas is affected by the resistance of the adsorbent without flowing through the adsorbent, causing the unfiltered gas to be directly output, and the hydrogen generator affects the normal use of the chromatogram;

2. The purification pipe is filled with a pipe adsorbent into the purification pipe. The gas is first adsorbed by the adsorbent and then output through the conduit. This method is mostly used for stainless steel pipe. The hydrogen generator but the stainless steel pipe is opaque, which is not convenient for the user to directly observe the change of the adsorbent. ; inconvenient to use.

Second, the hoisting type: the inlet and outlet of the purification pipe are in the upper part of the instrument, the outlet port is downward, and the gas from the electrolysis separation tank or the compressor of the hydrogen generator firstly flows from the air inlet protruding from the middle of the fixed cover. The bottom is passed through the inner core tube and enters the bottom of the desiccant. The hydrogen generator is then filtered by the adsorbent and then returned upward to the gas outlet around the fixed cover to ensure that the gas is effectively filtered and then output.

Due to the limitation of working principle, the humidity of the gas from the hydrogen generator and the electrolytic separation tank is relatively large. When the gas passes through the electrolytic separation tank, water vapor condenses into water droplets more or less, and the hydrogen generator is fixed by vertical installation. Tube, droplet due to gravity, will drop into the gas outlet when the filter is replaced, enter the pipeline of the chromatograph, causing pollution of the pipeline system. The hydrogen generator hoisting type avoids the above problems.

In order to reduce the humidity of the output gas of the electrolytic separation cell, some hydrogen generator manufacturers install a steam-water separator between the electrolytic cell and the purification pipe. Since the filter material in the hydrogen generator separator is mostly sintered powder metal material, electrolytic separation The undried gas output from the pool is an alkaline gas. The hydrogen gas generator alkaline gas can corrode the powder metal material in the separator and even cause blockage, which affects the normal use of the generator. In the more serious case, the hydrogen generator may cause excessive pressure due to clogging. Cause an explosion, I hope the user must pay attention to when using.

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