“Microbubble deaerators, also known as microbubble separators or degassers, are devices used to remove dissolved gases, primarily oxygen and carbon dioxide, from liquids. These gases can be unwanted in certain industrial and scientific processes as they can lead to issues such as corrosion, reduced efficiency, and altered chemical reactions. Microbubble deaerators are designed to efficiently and effectively remove these gases from liquids, ensuring that the liquid remains free of dissolved gases.
The basic principle behind microbubble deaerators involves creating a large surface area for the gases to escape from the liquid by introducing a fine stream of the liquid into a low-pressure environment. Here’s a simplified overview of how they work:
Inlet: The liquid containing dissolved gases enters the deaerator through an inlet port.
Deaeration Chamber: Inside the deaerator, the liquid is exposed to a low-pressure environment. This low pressure encourages the dissolved gases to come out of solution and form tiny bubbles.
Microbubble Formation: The liquid is broken up into tiny streams or droplets. As these droplets move through the low-pressure environment, the dissolved gases escape from the liquid and form microbubbles due to the reduced pressure.
Gas Separation: The microbubbles rise to the surface of the liquid in the deaeration chamber, carrying the dissolved gases with them. The surface area-to-volume ratio of the microbubbles is high, which promotes efficient gas separation.
Gas Removal: Once the microbubbles reach the surface, they burst and release the gases into the surrounding atmosphere, effectively removing them from the liquid.
Treated Liquid Outlet: The now-deaerated liquid is collected from the bottom or middle of the deaeration chamber and exits the device through an outlet port. It is now relatively free from dissolved gases.
Microbubble deaerators are commonly used in various industries, including power generation, water treatment, food and beverage processing, pharmaceuticals, and more. They help improve the efficiency and performance of systems by minimizing the presence of dissolved gases that can hinder processes or lead to equipment deterioration.
It’s worth noting that there are different designs and configurations of microbubble deaerators, including variations in how the liquid is introduced into the low-pressure chamber and how the microbubbles are separated from the liquid. The efficiency of a deaerator depends on factors such as the design, flow rate, pressure, and the nature of the liquid being treated.”