An experimental control device for studying an ejector system

By designing an experimental control device for high-pressure power source pipelines and multi-stage ejector pipelines, the problem of insufficient instantaneous dynamic variable operating condition evaluation of ejector systems in existing technologies has been solved, realizing a comprehensive evaluation of ejector system performance and improving control accuracy.

CN119492552BActive Publication Date: 2026-06-02SHANGHAI JIAOTONG UNIV
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
SHANGHAI JIAOTONG UNIV
Filing Date
2024-11-15
Publication Date
2026-06-02

AI Technical Summary

Technical Problem

Existing ejector system experimental setups lack consideration for the instantaneous dynamic changing conditions of the overall system, making it difficult to evaluate the ejection coefficient and compression ratio, resulting in insufficient structural optimization.

Method used

An experimental control device was designed, comprising a high-pressure power source pipeline, a multi-stage ejector pipeline, and a control and data acquisition system. The device simulates variable operating conditions using adjustable valves and sensor transmitters, and detects and collects data to evaluate ejector performance.

Benefits of technology

This enabled a comprehensive performance evaluation of the ejector system, adapting to various variable operating conditions and improving ejection performance and system control accuracy.

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Abstract

The application provides an experimental control device for studying an ejector system, which comprises a high-pressure power source pipeline, a multi-stage ejector pipeline and a control and data acquisition system; the high-pressure power source pipeline is used for providing high-pressure gas for the multi-stage ejector pipeline, so that each stage of the multi-stage ejector pipeline can work normally; the multi-stage ejector pipeline comprises a first-stage ejector pipeline to an n-stage ejector pipeline, and each stage of the ejector pipeline is connected in series; and the control and data acquisition system is used for controlling the multi-stage ejector pipeline and collecting data. The experimental control device for studying the ejector system can study the performance of various ejector systems, so that the ejector system can meet the design target, adapt to various variable working conditions and improve the ejector performance.
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