How to choose a vacuum system for liquid ejectors

When selecting a liquid ejector vacuum system, there are several factors to consider to ensure that the selected system meets the specific application needs. Here are some key considerations, along with a selection guide based on them:

1. System Needs Assessment

Vacuum Requirements: Determine the desired vacuum range. Different applications require different levels of vacuum, so it is important to choose a system that can meet the target vacuum level.
Gas Flow: The gas flow rate is determined according to the needs of the application. High-flow applications require larger capacity injectors.
Media compatibility: Consider the type of media you will be working with, and ensure that the system you choose is compatible with the media to avoid corrosion or other damage.

2. Ejector type

Water ejector: suitable for occasions where the vacuum level is not too high. They have the dual role of producing vacuum and condensing vapor and are used in a wide range of applications.
Steam ejector: water vapor as the working medium, fast starting, large pumping capacity. However, it may involve high civil investment and cooling water consumption.
Air ejector: Uses compressed air or atmospheric pressure air as the working medium. The working medium consumption is large, and an air compressor with a large capacity is required.

3. Performance parameters

Efficiency: Choose a system with high efficiency to reduce energy waste and operating costs.
Stability: Ensure that the system can operate stably under various conditions, reducing failures and maintenance needs.
Reliability: Choose a proven and widely used system to improve reliability.

4. Economy

Initial investment: Consider the purchase cost of the system, including the injector, piping, control system, etc.
Operating costs: Evaluate the energy consumption, maintenance costs, and operating life of the system to determine long-term economics.

5. Manufacturers and Services

Brand reputation: Choose a manufacturer with a good reputation and a proven track record of service.
Technical support: Ensure that manufacturers are able to provide the necessary technical support and training to optimize system performance.
After-sales service: Understand the manufacturer’s after-sales service policy, including warranty period, repair response time, and spare parts supply, etc.

6. References

Check out the relevant industry reference cases to learn about the types and performance of liquid ejector vacuum systems used in similar applications.

7. Customization requirements

If standard products do not meet specific needs, consider a customized liquid ejector vacuum system. Communicate with the manufacturer to define the needs and expectations of the customization to ensure that the selected system can meet the special requirements.
When selecting a liquid ejector vacuum system, factors such as system requirements, ejector type, performance parameters, economy, manufacturer and service need to be considered. By carefully evaluating these factors and selecting the system that best suits the needs of the specific application, you can be sure that the selected system will operate efficiently, reliably, and meet long-term economic requirements.