Venturi Tube Pool Spraying Device for Air-Water Mixing
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Solution Overview
Problem
Current spraying devices for pools fail to achieve desired spraying effects, such as effective water mist or air-water mixture, and do not adequately enhance oxygen content or water purity.
Innovation Solution
A Venturi tube with a first and second opening and an air vent is used to create a negative pressure, allowing air to mix with water flow, forming a high-speed jet or mist for enhanced oxygenation and purification, while preventing scale formation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If conventional spraying devices are used, then water flow can be delivered to the pool, but the spraying effect is insufficient and cannot achieve required atomization or high-speed jet formation
Solution Approach 1:
The patent employs a Venturi tube structure that utilizes hydraulic principles to create a negative pressure zone at the throat portion, automatically drawing in air through the air vent and mixing it with the water flow. This pneumatic-hydraulic mechanism eliminates the need for complex mechanical pumps or motors to generate spray effects, achieving high-speed water jets and mist formation through pure fluid dynamics while keeping the device structure simple.
Solution Approach 2:
The Venturi tube design changes the cross-sectional area parameter along the flow path, with the throat portion having a smaller diameter than the inlet and outlet openings. This geometric parameter change creates the negative pressure zone necessary for air entrainment and spray formation, transforming the water flow characteristics without adding mechanical complexity.
2Manufacturing precision
If water flow rate is increased to improve spraying effect, then better atomization can be achieved, but scale formation in the tube increases
Solution Approach 1:
By using the Venturi effect to generate high-velocity water flow through the throat portion, the system achieves effective atomization and spray formation. The high velocity created by the pressure differential not only improves spraying performance but also generates sufficient shear force to prevent scale adhesion to the tube walls, eliminating the need for separate anti-scaling mechanisms.
3Device complexity
If simple spray structures are used, then device complexity is reduced, but oxygen content increase and water purification effects are insufficient
Solution Approach 1:
The Venturi tube structure automatically entrains air into the water flow through the air vent, creating an air-water mixture that enhances oxygen dissolution in the pool water. The high-velocity jet and mist formation increase the surface area for gas-liquid contact, improving oxygenation and water purification without requiring complex aeration devices or chemical treatment 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
The device produces a high-speed water mist or air-water mixture for improved user experience, increased oxygen content, and enhanced water purity, with reduced scale formation.
Implementation Method 1
The Venturi tube has a throat portion arranged between the first opening and the second opening, and a tube diameter of the throat portion is less than an opening diameter of the first opening and less than an opening diameter of the second opening. When the water flow flows through the throat portion, it has an increased flow velocity since the tube diameter shrinks. As a result, the water flow forms a negative pressure near the throat portion, so that outside air enters the Venturi tube through the air vent under the negative pressure
Data Source
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AI summary
The present disclosure relates to a spraying device (10) including a Venturi tube (200). Two ends of the Venturi tube are provided with a first opening (213) and a second opening (221) respectively, and a sidewall of the Venturi tube is provided with an air vent (223). The Venturi tube has a throat portion (212) arranged between the first opening and the second opening, and a tube diameter of the throat portion is less than an opening diameter of the first opening and less than an opening diameter of the second opening. The first opening is used for communicating with a water supply, and the air vent is used for communicating with external atmosphere. The spraying device and a pool including the same can produce spraying effects meeting requirements.