The gas purification system of the glove box is the key to ensuring the cleanliness of the environment inside the glove box. It can be integrated into the glove box for use or used separately. The glove box gas purification system usually consists of the following parts:
1. Purification column:
Purification column function: The purification column is an important part of the gas purification system, which contains various adsorption materials used to remove moisture, oxygen, and other harmful gases from the glove box.
Purification column principle: Purification columns usually contain desiccants (such as molecular sieves, silica gel, or activated carbon) and oxygen scavengers (such as copper catalysts or titanium alloys). Desiccants remove moisture through physical adsorption, while deoxidizers remove oxygen through chemical reactions or physical adsorption.
Purification column function: Ensure that the gas environment inside the glove box meets the requirements of specific experimental or storage conditions, such as no water, no oxygen, low humidity, and low oxygen content.
2. Circulating system:
Circulation system function: The circulation system includes fans and pipes, which are used to circulate gas inside the glove box to ensure uniform distribution and effective purification of the gas.
Principle of circulation system: The fan sucks in the air inside the glove box, transports it through the pipeline to the purification column, and then returns to the glove box, forming a closed-loop system.
Principle of circulation system: The fan sucks in air from the glove box, transports it through the pipeline to the purification column, and then returns to the glove box to form a closed-loop system.
3. Regeneration system:
Regeneration system function: When the adsorption capacity of the purification column decreases to a certain level, the regeneration system is used to restore its performance.
Principle of regeneration system: The regeneration process usually involves heating the purification column to remove adsorbed materials, and filling the purification column with specific gases (such as hydrogen and argon).
Function: Extend the service life of the purification column, reduce replacement frequency, and ensure long-term stable operation of the glove box.
Function: Used in scenarios that require negative pressure or vacuum extraction
Purpose: Create and maintain a certain negative pressure inside the glove box; Vacuum the purification column during regeneration; Vacuum the transition compartment when transferring items in the glove box.
5. Valve:
Function: Used to control the flow of gas, including the entry, exit, and distribution between different system components.
Principle: Valves can open or close gas flow channels or adjust gas flow rates through physical switches or adjustments.
Function: Ensure that the gas flows along the predetermined path, achieving precise control of the gas environment inside the glove box.
The working principle of the entire gas purification system is that the circulation system inside the glove box delivers gas to the purification column for purification, and the purified gas returns to the box. When the purification tower is saturated with adsorption, the regeneration system of the glove box will be activated to restore its purification capacity.Valves play a critical control role throughout the entire process, ensuring the correct flow of gas and the safe operation of the system.
The function of the glove box gas purification system is to:
Control gas environment: The gas purification system of the glove box can control and maintain the gas environment inside the box, ensuring that experiments are conducted in an environment free of water, oxygen, low humidity, and low oxygen content.
Protecting sensitive materials: For sensitive materials or chemicals that require operation in specific gas environments, such as certain metals, semiconductor materials, etc., the gas purification system of the glove box can provide necessary protection to prevent material oxidation or hydrolysis.
Improving experimental accuracy: By maintaining a stable gas environment, the gas purification system of the glove box helps to improve the repeatability and accuracy of experiments.
Extending material lifespan: For materials that require long-term storage in glove boxes, gas purification systems can extend their service life and prevent material degradation due to environmental factors.
In summary, the gas purification system of the glove box is crucial for experiments that require specific gas environments. It ensures the success of experiments and the safety of materials by maintaining a stable and controlled internal environment of the glove box.
