The working principle of the liquid ejector vacuum system mainly involves the fluid dynamics and physical principles, which can be divided into the following key steps and principles:
Liquid Supply System
The liquid is piped from the source such as a storage tank, water pump, etc., to the nozzle.
Liquid supply systems typically include components such as liquid storage tanks, pumps, and piping.
Pipes
The liquid passes through the hose before entering the nozzle from the supply system.
The role of the throat is to accelerate the liquid and form a high-speed flow, which is based on Bernoulli’s law in fluid mechanics, which states that the pressure decreases when the flow rate increases.
Nozzle
The nozzle is the core component of a liquid ejector and usually consists of a small hole.
As the liquid passes through the nozzle, it is sprayed at high velocity through a small hole. The shape and size of the nozzle affects the flow rate and angle of the jet.
Controls
The control unit is used to adjust the flow rate and spray angle of the liquid.
Common control devices include handles, valves, and electronic control systems.
Vacuum generation
The gas inside the injector is pumped out so that a lower air pressure is formed inside the injector.
This creates a vacuum inside the injector that provides the conditions for subsequent gas injections.
Gas injection and jet force generation
In a vacuum, an external gas is introduced into the injector by controlling the valve of the injector.
Due to the difference in internal and external air pressure, the outside gas will quickly enter the inside of the injector and form a high-velocity air flow.
When the high-velocity air flow is ejected from the nozzle, the air flow energy increases, and according to the law of conservation of momentum, the increase in the momentum of the air flow leads to an increase in the corresponding reaction force, resulting in the jet force.
Features & Applications
High efficiency: In a vacuum environment, the vacuum ejector can produce a greater ejection force due to the lower density of the gas and the higher injection velocity.
Flexibility: By changing the structure and parameters of the injector, the magnitude and direction of the ejector force can be adjusted to suit different application needs.
Wide application: Vacuum ejectors are widely used in spraying, cleaning, drying and other fields in industrial production, and are also used in particle suspension and gas transmission experiments in scientific experiments.
In summary, the liquid ejector vacuum system uses fluid mechanics and physical principles to form a vacuum environment inside the ejector through the steps of liquid supply, acceleration, injection and gas extraction, and generates jet force through high-speed air flow to meet the application needs of different fields.
