Mechanism of impurity mixing and purity assurance measures during the filling process of carbon dioxide small cylinder
Publish Time: 2024-12-03
Carbon dioxide small cylinder is widely used in many fields, such as food preservation, fire fighting, medical treatment, etc. The purity of the filling gas is crucial. During the filling process, impurity mixing is a key issue that needs to be studied in depth and controlled.
The mechanism of impurity mixing is relatively complex. First, the gas source itself may contain trace impurities. If the production process of carbon dioxide is not perfect, impurities such as hydrogen, oxygen, nitrogen and some organic or inorganic compounds may remain. Secondly, the filling equipment and pipelines are another important source of impurities. During the long-term use of equipment and pipelines, the inner wall will absorb or retain some substances, such as metal oxides, grease, moisture, etc. When carbon dioxide gas flows through these parts, these substances may fall off and mix into the gas. In addition, the cleanliness of the filling environment will also affect the purity of the gas. If the air cleanliness of the filling workshop is not high, impurities such as dust and microorganisms may enter the small cylinder during filling.
In order to ensure the purity of the gas used to fill carbon dioxide small cylinder, a series of effective measures need to be taken. In terms of gas source, advanced preparation and purification technologies should be adopted, such as deep purification of carbon dioxide through low-temperature distillation, adsorption, membrane separation and other methods, and the impurity content of the gas source should be strictly controlled at an extremely low level. For filling equipment and pipelines, regular cleaning, passivation and drying should be carried out to remove adsorbents and residues on the inner wall, and high-purity materials should be used to manufacture equipment and pipelines to reduce the possibility of impurity precipitation. In terms of filling environment, a clean workshop should be established, equipped with an air purification system, and the number of dust particles, humidity and microbial content in the workshop should be controlled to ensure the cleanliness of the filling environment. In addition, high-precision filters and purity detection devices should be set up during the filling process to monitor and filter impurities in the gas in real time. Once an abnormal purity is found, the filling operation can be adjusted or stopped in time.
Only by deeply understanding the impurity mixing mechanism during the filling process of carbon dioxide small cylinder and strictly implementing corresponding purity assurance measures can we ensure that the carbon dioxide gas in the small cylinder after filling has high purity, meet the strict requirements of various industries on carbon dioxide quality, and ensure the safety, efficiency and reliability of related applications.
