2024 Author: Howard Calhoun | [email protected]. Last modified: 2023-12-17 10:16
To ensure that the passion for diving does not bring unpleasant surprises, but only brings pleasure, you must follow strict rules for preparing for immersion in water. Proper filling of oxygen cylinders is one of the most important but dangerous procedures in this training.
Cylinder capacities can be filled with ordinary air or special mixtures of gas pumped into them using a compressor. At high depth pressure, impurities in gas mixtures can become life-threatening, so filling cylinders with compressed gases should be completely excluded.
Fill oxygen cylinders only in specialized places, for example, where they sell underwater equipment. When refilling oxygen cylinders, there are a few important things to consider:
- Be extremely careful when transferring oxygen.
- Use only labeled oxygen cylinders.
- Oxygen cylinders must have a mixture indicator.
Carbon dioxide and carbon monoxide, oil and grease particles from the compressor and other impurities that clogbreathing mixture - all of them can cause the death of the driver.
Causes of an oxygen cylinder explosion
When working with oxygen, an explosion of an oxygen cylinder can occur at any time, the causes of which can be:
- Corrosion of the inner wall of the balloon.
- Carelessness while pumping oxygen.
- Damage to the thread or neck where the valve is attached.
An explosion of an oxygen cylinder can also be triggered by a sharp drop in temperature of the filled tank and air. A powerful compressor, pumping uncooled air, heats up the cylinder. After refueling, the metal part of the cylinder cools faster than the hot air inside it, and this, in turn, produces additional loads on the walls of the tank.
It is during this critical stress that the risk of an explosion appears. Therefore, the cooling process is the most dangerous part of the oxygen cylinder filling process.
Oxygen cylinders should preferably be stored filled, which greatly reduces the risk of dangerous elements (particles of diesel fuel, gasoline, sea water, toxic gases, colonies of microorganisms) getting inside the tank, subsequently threatening both the life and he alth of the scuba diver.
Oxygen filling station
This station usually includes an oxygen concentrator with the required capacity, connecting fittings and a high pressure oxygen compressor.
For example, a complex that consists of an oxygen concentrator and a corresponding compressor, the capacity of which is 8 liters per minute at a pressure of 150 atm, can charge two forty-liter cylinders per day. This complex can completely solve the problem of oxygen supply. For example, an ambulance station.
The high capacity oxygen concentrator can fill up to 100 oxygen cylinders per day when using a compressor with the appropriate capacity.
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