Jet Regulator Swirl Zone for Boiling Water Spray Reduction
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Solution Overview
Problem
Conventional jet regulators fail to prevent spraying of boiling hot water, which expands and forms uneven jets with excessive gas, and similarly struggle to minimize CO2 escape in sparkling water, leading to reduced CO2 content in the dispensed water.
Innovation Solution
A jet regulator with a cylindrical housing featuring a swirl creating portion for rotational acceleration of water, an expansion zone for centrifugal separation of fluid and gas, and a guide portion for deceleration and axial guidance, allowing for efficient fluid/gas separation and reduced spraying, along with optional laminar jet regulator and gas discharge features for enhanced performance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional jet regulators are used for boiling water, then the water can be dispensed, but the water jet emerges unevenly with excessive spray due to gas expansion
Solution Approach 1:
The jet regulator is divided into distinct functional zones: a swirl creating portion with helical flow guide, an expansion zone for centrifugal separation, and a guide portion for deceleration. This segmentation allows each zone to address specific aspects of the problem, with the expansion zone specifically designed to separate gas from water to reduce spray
Solution Approach 2:
The expansion zone acts as an intermediary region between the swirl creating portion and the guide portion. It provides a transition space where centrifugal force can separate gas bubbles from the water stream before the water is decelerated and guided axially, preventing gas from reaching the outlet with the water jet
2Object-generated harmful factors
If the temperature of boiling water is lowered to prevent spraying, then spray is reduced, but the purpose of providing boiling hot water is defeated
Solution Approach 1:
The expansion and gas formation, which initially cause spray problems, are converted into a beneficial separation mechanism. The gas bubbles rise to the center due to centrifugal force in the expansion zone, while the water is pushed to the periphery and then decelerated axially. This transforms the harmful gas-water mixture into a separated flow pattern that reduces spray while maintaining temperature
3Volume of moving object
If the jet regulator is designed for compact size, then it can be used in concentric arrangements, but the internal flow paths become constrained
Solution Approach 1:
The helical flow guide in the swirl creating portion utilizes the angular dimension to rotational accelerate the water stream. This three-dimensional flow path allows the water to gain rotational velocity without increasing the axial length of the device, enabling effective centrifugal separation in a compact volume while maintaining high flow rates
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 solution effectively reduces spraying of boiling water and increases CO2 content in sparkling water by 30%, while maintaining a compact design suitable for high-temperature and high-flow applications, ensuring a smooth, laminar water jet discharge without gas bubbles.
Implementation Method 1
an expansion zone, following the swirl creating portion, in which the rotationally accelerated stream of water can flow under the action of centrifugal force in the region of the housing inner wall
Implementation Method 2
As a result of this cyclone effect, there is thus fluid/gas separation, and the gas phase can be discharged or emerge separately via the inner region
Data Source
AI summary
A jet regulator for a fitting for dispensing boiling water is provided. The jet regulator includes a substantially cylindrical housing with an inlet opening and an outlet opening, and a swirl creating portion, arranged in the region of the inlet opening, with a substantially helically extending flow guide for rotationally accelerating a stream of water flowing through, an expansion zone, following the swirl creating portion, in which the rotationally accelerated stream of water can flow under the action of centrifugal force in the region of the housing inner wall, and a guide portion, in which the rotational movement of the stream of water is decelerated and the latter is guided in a longitudinal direction.