Purging (gas)

Imagine you have a jar of cookies, but some of those cookies are stale or yucky. You don't want those bad cookies mixed in with the good ones, so you take them out and throw them away. This is similar to what happens when we purge gas.

In certain industries, such as manufacturing or even food processing, it's important to make sure that there are no harmful chemicals or contaminants in the equipment or product being made. So, before starting a new production cycle, they need to get rid of any leftover gas or substances from the previous cycle. This process of removing unwanted gases is called purging.

To purge gas, you need to force in a new substance (like air or nitrogen) that will push out the old gas. You can think of it like blowing up a balloon. When you blow air into it, it pushes out any old air that was already in there. Once all the old gas is removed, the new gas can be safely used in the next production cycle.

So, purging is like cleaning out the stale cookies from the jar so that you can enjoy a fresh batch next time. It's a way to make sure that the equipment and materials used in certain industries are safe and free from harmful contaminants.