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ProductsHebei Runfeng cryogenic equipment Co., Ltd. is a new high-tech enterprise specializing in the design, manufacture and research of low-temperature pressure vessels.
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NewsThe company invests a large amount of income every year for the development and test of new technologies and new products. Strive to create a standard enterprise in low temperature industry.
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27
2023
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04
What are the norms to pay attention to when using liquid oxygen dewar bottles?
Dewar bottle, commonly known as a gas tank, is a stainless steel pressure vessel using vacuum insulation. Its main function is to store . Transportation of liquid oxygen. Liquid nitrogen. Liquid argon or carbon dioxide. LNG is a reliable and economical device for the transport of cryogenic liquid gases. Of course, this means that its operation and use must be standardized, otherwise accidental injuries and dangers can occur. Therefore, what should we pay attention to in our daily life?
1. Remember not to open the booster valve when not using Dewar bottles (cans) for storage. Check if the booster valve is closed, otherwise the gas inside the tank will leak.
2. After stopping use, remember to close the open booster valve and open only the booster valve when in use.
3. When using, when the booster valve is completely open, the pressure drop of the pressure gauge of the Dewar bottle (tank) no longer increases, that is, there is no liquid phase in the tank, only the gas phase.
4. Dewar bottle (tank) in the use of the process of checking the connections (dynamic). Static sealing point) whether air leakage, frost in the use of the process is a normal phenomenon, and Dewar bottle (tank) leakage is easy to confuse.
5. When the booster valve is open, the system pressure must not be greater than the design pressure, when the system pressure is too high, close the booster valve can not be controlled; quickly open the air valve, for the system pressure relief, find out the cause and then put into use.
6. Check the Dewar bottle (tank) pressure, try to check every half hour. When the Dewar bottle (tank) pressure is low, you should properly open or open the large system booster valve to pressurize the system and avoid low liquid level.
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