Hydrogen production plant by water electrolysis and with liquid level monitoring function

Abstract

The invention relates to a hydrogen production plant by water electrolysis and with a liquid level monitoring function. The hydrogen production plant comprises a hydrogen production equipment body and magnetic level gauges. The side ends of a hydrogen separator and an oxygen separator of the hydrogen production equipment body are vertically provided with the magnetic level gauges. Each magnetic level gauge comprises a shell body, an upper connecting flange, a lower connecting flange, a flap indicator, a magnetic floater, a sewage discharging valve and liquid level sensors. Each upper connecting flange and each lower connecting flange are correspondingly arranged at the upper part and the lower part of the rear end face of the corresponding shell body. Each flap indicator is arranged on the front end face of the corresponding shell body. Each magnetic floater is arranged in the corresponding shell body. Each sewage discharging valve is arranged at the lower end of the corresponding shell body. The liquid level sensors are correspondingly arranged at a liquid level upper limit position and a liquid level lower limit position which are arranged at the side end of the corresponding shell body. Each liquid level sensor is in electrical signal connection with a rectifier cabinet which controls the hydrogen production equipment body. The hydrogen production plant is scientific and reasonable in structural design and has the advantages that the hydrogen production plant is safe and reliable, can conduct liquid level monitoring, reduces loss and guarantees normal operation of hydrogen production working.

Description

technical field [0001] The invention relates to a water electrolysis hydrogen production device, in particular to a water electrolysis hydrogen production device with a liquid level monitoring function. Background technique [0002] At present, most industrial water electrolysis hydrogen production devices use alkaline water electrolysis cells. Water electrolysis is a process in which direct current decomposes water into hydrogen and oxygen through KOH aqueous solution. The chemical reaction is as follows: Cathode: 2H 2 O+2e→H 2 +2OH-, anode: 2OH--2e→H 2 O+1 / 2O 2 , the overall reaction formula: H 2 O=H 2 +1 / 2 O 2 . [0003] The existing water electrolysis hydrogen production device consists of an electrolyzer, a hydrogen separator, an oxygen separator, a lye filter, an lye cooler, a hydrogen and oxygen lye circulation pump, a hydrogen and oxygen gas cooler, a control instrument system and a direct current power supply etc. The hydrogen, oxygen and KOH solutions gener...

AI Technical Summary

Problems solved by technology

[0004] In the water electrolysis production process, the electrolytic cell must be filled with electrolyte, and the pressure and liquid level of the hydrogen side and the oxygen side in the electrolytic cell must be equal. If the pressure difference is too large or the liquid level is too low, hydrogen gas will be generated. , Oxygen penetrates and mixes with each other through the diaphragm, resulting in the danger of explosion. At present, the display of pressure and liquid level on each side is manually monitored by liquid level gauges. Once manual monitoring is ineffective, it will cause serious losses.

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