Compression Water Pressure Reducer Inverts Upstream Downstream Relationship
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing water pressure reduction systems rely on tension or traction forces, leading to stress and decreased service life, and fail to effectively mitigate high upstream water pressures, which can still damage downstream pipes and appliances due to the proportional relationship between upstream and downstream pressures.
Innovation Solution
The use of a two-chamber water pressure reducer design that employs compression forces, where a spring biases a membrane and plunger to create an inverse relationship between upstream and downstream pressures, reducing downstream pressure when upstream pressure increases, and utilizing a pressure adjustment component to control the spring's force for adjustable pressure regulation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If piston-type or membrane-type pressure reduction systems are used, then water pressure can be reduced, but tension or traction forces cause stress on components leading to decreased service life
Solution Approach 1:
The patent inverts the conventional approach by using compression forces instead of tension forces. The spring mechanism compresses the membrane toward the valve seat, rather than pulling on it with tension. This inversion eliminates the stress and wear associated with tension-based systems, thereby improving component service life and reliability.
Solution Approach 2:
The patent replaces the traditional tension-based mechanical system with a compression-based mechanical system. By substituting the force application method from tension to compression, the system reduces stress on components while maintaining pressure reduction functionality, leading to improved durability.
2Stress or pressure
If conventional pressure reducers are used, then downstream pressure is reduced, but a proportional relationship exists such that downstream pressure still increases when upstream pressure increases
Solution Approach 1:
The patent implements a feedback mechanism where the spring force responds dynamically to upstream pressure changes. When upstream pressure increases, the spring compression increases, which increases the force on the membrane and valve, thereby reducing downstream pressure. This feedback loop creates an inverse relationship between upstream and downstream pressure changes, improving the system's adaptability to pressure spikes.
Solution Approach 2:
The patent changes the operational parameter relationship from proportional to inverse by using a spring-based compression system. The spring constant and compression distance are adjusted to create an inverse pressure relationship, where increases in upstream pressure result in decreases in downstream pressure, enhancing the system's ability to handle varying upstream conditions.
3Object-affected harmful factors
If spring compression force is increased to reduce downstream pressure further, then protection against high pressure improves, but the force required to operate the valve increases
Solution Approach 1:
The patent uses the spring compression force as a counterweight to the upstream water pressure. The spring is pre-compressed to provide a baseline force that counteracts high upstream pressure, protecting downstream components. The valve seat geometry and spring placement are designed so that this counteracting force is applied efficiently without requiring excessive operating force.
Solution Approach 2:
The patent applies compression force locally at the valve seat area where it is most needed for pressure reduction. The spring force is concentrated on the membrane and valve assembly rather than being distributed throughout the entire system, providing effective high-pressure protection at the critical location while minimizing the overall force requirements for valve operation.
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
This design reduces stress on components, provides continuous and smooth pressure regulation, and effectively protects downstream pipes and appliances from high water pressures by ensuring downstream pressure remains below harmful thresholds, even during spikes in upstream pressure.
Implementation Method 1
A spring in the first chamber applies force to the membrane, biasing or flexing the membrane at least partially into the second chamber
Implementation Method 2
The membrane can have a flexing range that can allow for continuous expansion and contraction of the spring
Data Source
Figure 1
Figure 2
Figure 3~4
AI summary
A water pressure reducer using compression forces with an inverse upstream to downstream pressure relationship, and a method of operating the same, is disclosed. The water pressure reducer may include a housing defining first and second chambers separated by a membrane. Water pressure within the second chamber biases the membrane in a first direction opposite the force of a spring within the first chamber, decreasing flow through a valve seat and into downstream water lines. Decreased water pressure within the second chamber biases the membrane in a second direction, increasing flow through the valve seat and water flow to downstream pipes. Biasing of the membrane in the first direction and the second direction can occur continuously as water pressure from the upstream water line increases and decreases.