Inducer Cavitation Testing with Simulated Inlet Gas Evolution
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Solution Overview
Problem
Existing inducer test methods fail to simulate the working condition of inlet gas gradual evolution, making it difficult to study low-temperature cavitation effectively.
Innovation Solution
A device and method that simulate inlet gas gradual evolution by controlling liquid temperature and gas introduction using a temperature control assembly and delivery pump, with optical probes to monitor gas content, enabling visual observation and data collection for inducer cavitation testing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If conventional test methods are used, then the test setup is simple, but they cannot simulate inlet gas gradual evolution conditions
Solution Approach 1:
The test system is divided into multiple independent modules: liquid storage tank, temperature control assembly, gas storage tank, delivery pump, and inducer test assembly. Each module performs a specific function, allowing the system to simulate complex inlet gas gradual evolution conditions while maintaining manageable complexity through modular design.
Solution Approach 2:
Gas is pre-stored in the gas storage tank and liquid is pre-cooled in the temperature control assembly before being delivered to the inducer test assembly. This preliminary preparation enables the system to rapidly establish desired test conditions and simulate gradual gas evolution at the inlet.
2Reliability
If theoretical modeling or numerical simulation is used, then the research scope can be expanded, but they cannot achieve expected research objects for low-temperature cavitation
Solution Approach 1:
The delivery pump acts as an intermediary device that precisely controls the mixing ratio and flow rate of liquid and gas before they enter the inducer test assembly. This intermediary control mechanism enables accurate simulation of gradual gas evolution conditions, providing reliable experimental data for low-temperature cavitation research.
Solution Approach 2:
The system dynamically adjusts key parameters including temperature (through the temperature control assembly), gas content (through the delivery pump mixing ratio), and pressure (through the vacuum pump) to simulate various low-temperature cavitation conditions. These parameter changes enable the system to achieve research objectives that cannot be obtained through theoretical modeling alone.
3Measurement precision
If optical probes are added to monitor gas content, then measurement precision improves, but device complexity increases
Solution Approach 1:
The optical probe replaces complex mechanical measurement methods for gas content detection. By using optical principles instead of mechanical sensors, the system achieves high measurement precision for gas content monitoring while avoiding the complexity of mechanical measurement systems.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Accurately simulates inlet gas evolution conditions, providing detailed data for numerical simulation correction and identifying effective cavitation inhibition measures.
Implementation Method 1
The temperature control assembly is configured for controlling the temperature of the liquid medium from the first liquid storage tank into the inducer cavitation test assembly
Implementation Method 2
An optical probe is provided on a pipeline between the outlet of the temperature control assembly and the inlet of the inducer cavitation test assembly. The optical probe is configured for detecting the content of gas entering into the inducer cavitation test assembly
Implementation Method 3
The vacuum pump is located on a pipeline between the outlet of the first liquid storage tank and the inlet of the inducer cavitation test assembly
Implementation Method 4
The heater is connected with the temperature control assembly, and the heater is configured for heating the temperature control assembly
Data Source
AI summary
A device for testing a low-temperature cavitation of an inducer and a test method are provided. The device includes an inducer cavitation test assembly, a first liquid storage tank configured for storing a liquid medium therein and having an outlet connected with an inlet of the temperature control assembly, and a temperature control assembly having an outlet connected with an inlet of the inducer cavitation test assembly. An outlet of the inducer cavitation test assembly is connected with an inlet of the first liquid storage tank. The temperature control assembly is configured for controlling the temperature of the liquid medium from the first liquid storage tank into the inducer cavitation test assembly. The inlet of the inducer cavitation test assembly is connected with a gas storage tank for conveying gas. The inducer cavitation test assembly is configured for testing an inducer.