Hydrogen gas, chemical formula H2, the molecular weight is2.01588, Under normal temperature and pressure, it is a highly flammable gas. AlsoColorless, transparent, odorless, tasteless and insoluble in water.Hydrogen is a flammable gas, and the reducibility of hydrogen is very strong, so the safety of hydrogen is not high, at room temperature, the nature of hydrogen is very stable, not easy to occur with other substanceschemical reaction. But when the conditions change (such as ignition, heating, using a catalyst, etc.), the situation is different. For example, hydrogen is adsorbed by metals such as palladium or platinum and has strong activity (especially by palladium adsorption). Palladium has the strongest adsorption effect on hydrogen. When in the airvolume fractionFor4%-75%When encountering a fire source, it can cause an explosion.

Hydrogen gas, chemical formulaH2, the molecular weight is2.01588, Under normal temperature and pressure, it is a highly flammable gas. AlsoColorless, transparent, odorless, tasteless and insoluble in water.Hydrogen is a flammable gas, and the reducibility of hydrogen is very strong, so the safety of hydrogen is not high, at room temperature, the nature of hydrogen is very stable, not easy to occur with other substanceschemical reaction. But when the conditions change (such as ignition, heating, using a catalyst, etc.), the situation is different. For example, hydrogen is adsorbed by metals such as palladium or platinum and has strong activity (especially by palladium adsorption). Palladium has the strongest adsorption effect on hydrogen. When in the airvolume fractionFor4%-75%When encountering a fire source, it can cause an explosion.

In the current method of hydrogen preparation, the industry mainly has natural gas or water gas to prepare hydrogen, electrolyzed water, electrolytic salt water, the previous relatively primitive hydrogen preparation method.It is the hydrogen formed by the original particles in the Big Bang. Most of it is distributed in the universe and in large planets. It is the nuclear fuel of stars and the initial substance of various elements and substances in the universe. There is no primordial hydrogen on Earth because Earth's gravity cannot bind it. Only its compounds.Civilian hydrogen production methods include ammonia decomposition, active metals and acids, strong alkalis and aluminum or silicon. Generally, the production of hydrogen balloons is also a method of producing hydrogen using strong alkalis and silicon.

Hydrogen as a multi-purpose gas, including industrial use, medical use. In industry, hydrogen is the main industrial raw material, and it is also the most important industrial gas and special gas,float glassfine organic synthesis, aerospace and other aspects have a wide range of applications.At the same time, hydrogen is also an ideal secondary energy (secondary energy refers to energy that must be produced from a primary energy source such as solar energy, coal, etc.)，Under normal circumstances, hydrogen is very easy to combine with oxygen，This property makes it a natural reducing agent for use in the production of oxidation prevention，In the high-temperature processing of glass manufacturing and the manufacture of electronic microchips, hydrogen is added to the nitrogen protective gas to remove residual oxygen.，In the petrochemical industry, hydrogenation is required to refine crude oil by desulfurization and hydrocracking.，Another important use of hydrogen is in the hydrogenation of fats in margarine, cooking oils, shampoos, lubricants, household cleaners, and other products. Due to the high fuel nature of hydrogen, the aerospace industry uses liquid hydrogen as a fuel. In the industry can also be synthetic ammonia,methanol synthesisRaw materials for the synthesis of hydrochloric acid, reducing agents for metallurgy, hydrodesulfurization agents in petroleum refining, etc. In medicine, hydrogen can be used to detect the profile of the disease being treated,The molecular effects of hydrogen can be present in a variety of tissues and diseases, such as the brain, spinal cord, eye, ear, lung, heart, liver, kidney, pancreas, small intestine, blood vessels, muscle, cartilage, metabolic system, perinatal disease and inflammation, etc. Among these organs, tissues and disease states, hydrogen has the most significant therapeutic effect on organ ischemia-reperfusion injury and inflammation-related diseases.; andThe mainstream view on the pathophysiological mechanism of hydrogen therapy is still the selective antioxidant of hydrogen, and on the basis of selective antioxidant, it has been proved that hydrogen has a therapeutic effect on oxidative damage, inflammation, apoptosis and vascular dysplasia in various diseases.Hydrogen also has a therapeutic effect on central nervous system diseases, and hydrogen has a therapeutic effect on cerebrovascular diseases and Alzheimer's disease.central nervous systemDisease dysfunction has obvious protective effect, as well as cerebrovascular disease, neurodegenerative diseases, liver disease has an important role.

As hydrogen is such an important gas, we must have industrial preparation, transportation, and pipeline transportation, etc. In these processes, a step that cannot be ignored is to detect leaks,Hydrogen is a colorless, odorless, non-toxic, flammable and explosive gas. It is dangerous to explode when mixed with fluorine, chlorine, oxygen, carbon monoxide and air. Among them, the mixture of hydrogen and fluorine can explode spontaneously in low temperature and dark environment, and the mixing volume ratio with chlorine is1:1It can also explode under light., such a dangerous gas, we must also be prepared when detecting leakage.

At present, the hydrogen detection equipment mainly includes portable hydrogen detector, pump suction hydrogen detector, online hydrogen detection alarm, etc. The core of these instruments is the sensor model. A good sensor model definitely brings stable, linear and accurate hydrogen output concentration, which can know the leakage concentration in time and make the fastest response to the leakage in the first time. Shenzhen Technology Co., Ltd. Agent of the United KingdomAlphasenseHydrogen sensorH2-AFIt has the advantages of good linearity, good stability, high sensitivity and high resolution. It is the best choice for hydrogen leak detection. The main parameters are as follows:

Sensitivity:10~25nA/ppm

Overload:5000ppm
Response time: Size: Φ20.2×16.5
Hydrogen detection range:0-2000ppm