Application of high-purity helium gas in deep-sea diving
Helium, high-purity helium
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High purity helium is a widely used gas in deep-sea diving. Due to the extremely high water pressure in the deep sea, divers face significant challenges in their activities on the seabed. To alleviate these challenges, high-purity helium gas is introduced into diving equipment. High purity helium can effectively reduce the pressure on the human body, allowing divers to move more freely in the deep sea.
The application of high-purity helium gas in deep-sea diving is mainly reflected in two aspects: mixed gas diving and breathing gas diving.
Mixed gas diving is a diving method that utilizes a mixture of high-purity helium and oxygen gases. Mixed gas diving allows divers to engage in activities in deeper waters while also extending their diving time. In the deep sea, nitrogen gradually dissolves in divers' tissues, causing the body to produce bubbles, which is the cause of diving sickness. However, high-purity helium does not cause such problems because it is almost insoluble in tissues in the deep sea. In addition, high-purity helium has an important advantage of having a very low density, which can reduce the physical burden on divers, decrease respiratory burden, lower heart rate and blood pressure.
Breathing gas diving is a diving method that uses pure high-purity helium gas as the breathing gas. Pure high-purity helium gas does not contain oxygen, so it can only be used for short-term, deep-sea diving, and requires preparation of oxygen mixture for divers to use before entering the water. This diving method is mainly used in scientific research or high-purity fields, such as oil exploration, underwater pipeline maintenance, etc.
Overall, high-purity helium gas has significant application value in deep-sea diving. With the continuous development of modern technology, the application of high-purity helium gas in the field of diving will become increasingly widespread and in-depth. For a maritime power, developing the application of high-purity helium gas in the field of diving will be a very important task.
