Vacuum ejector: operating principle, purpose, features

A vacuum ejector is a device that creates a vacuum in various systems. It operates on a simple principle: a vacuum is created by a high-speed flow of steam or gas. It is used to pump air or other gases out of a system. Let's take a closer look at the features of ejectors and their purpose.

Features of ejectors

A vacuum ejector consists of several basic elements. They are involved in creating a vacuum. How the basic parts of an ejector work:

• Steam or gas exits the nozzle at high speed.
• In the diffuser, the flow velocity slows down and the pressure drops, creating a vacuum.
• Air or gas from the pumped-out system enters the vacuum chamber.
• The pumped-out gases or steam exit the system through the outlet pipe.

Vacuum ejectors can operate without electricity. This makes them suitable for use in a variety of conditions. Due to the high velocity of the steam or gas flow, they provide fast and efficient pumping of air from the system. Ejectors have no moving parts, which makes them reliable and durable.

Ejectors are capable of creating a sufficiently high vacuum in a short time, which makes them effective in various production processes. They usually require minimal operating costs and ensure efficient use of energy. Vacuum ejectors are easy to adjust, allowing you to precisely tune the vacuum creation process to specific production requirements.

Purpose of vacuum ejectors

Vacuum ejectors are used in a wide variety of fields. They are needed wherever gases need to be pumped out and a vacuum created. Here are a few examples of ejector applications:

• They are used in the food industry for vacuum packaging of products to extend their shelf life. Vacuum removes air from the packaging, preventing bacterial growth and oxidation.
• In mechanical engineering and electronics, ejectors help create a vacuum to hold parts in place during processing or assembly. This allows for more precise work with small or complex components.
• In chemical production, ejectors are used to remove unwanted gases and vapors from reaction vessels. This helps maintain the purity and efficiency of chemical reactions.
• In medicine, they are used in artificial lung ventilation devices and in aspiration systems to remove fluids from the patient's body. In sterilization devices, they are needed to remove air from chambers before sterilizing instruments.
• In air conditioning systems and refrigerators, ejectors help remove air and moisture from pipes and components.
• In manufacturing, ejectors pump air out of distillation, evaporation, and filtration processes. They are needed to create a vacuum in packaging and sealing systems.

Thanks to their simplicity and reliability, vacuum ejectors significantly improve production processes and product quality. They are an important element of many systems. Everyone encounters the results of their work in everyday life or at work.