Pressure Reducing Valve With Integrated Shut-Off Switching
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Solution Overview
Problem
Existing pressure reducing valves require a separate shut-off valve for functionality, leading to increased space and cost requirements.
Innovation Solution
A pressure reducing valve with a switch valve unit that can operate in multiple states, allowing it to function both as a pressure reducing valve and a shut-off valve without the need for a separate shut-off valve, by connecting and disconnecting the pressure zone on the membrane to the inlet and outlet pressure zones.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a separate shut-off valve is installed in series connection with the pressure reducing valve, then the shut-off function is achieved, but the space requirement and cost increase
Solution Approach 1:
The patent combines the pressure reducing valve and shut-off valve into a single integrated device. The valve insert serves dual functions: it acts as a shut-off mechanism when closed and as a pressure reducing element when open, eliminating the need for a separate shut-off valve and reducing installation space requirements
Solution Approach 2:
The valve insert is designed to perform multiple functions within a single component. It can completely close to provide shut-off functionality and partially open to provide pressure reduction, making one component serve multiple purposes that previously required separate valves
2Reliability
If a separate shut-off valve is installed in series connection with the pressure reducing valve, then the shut-off function is achieved, but the cost increases
Solution Approach 1:
By merging the shut-off valve and pressure reducing valve into a single integrated device with a multi-functional valve insert, the patent reduces the total number of components that need to be manufactured, assembled, and installed, thereby reducing overall manufacturing and installation costs
3Stress or pressure
If the pressure zone on the second side of the membrane is permanently connected to the inlet pressure zone, then the membrane experiences higher pressure, but the pressure reducing valve function cannot be achieved
Solution Approach 1:
The patent implements a dynamic connection system where the switch valve unit can change the connectivity state of the pressure zone on the second side of the membrane. The connection between this pressure zone and either the inlet or outlet pressure zone is not fixed but can be switched, allowing the system to adapt between different operational modes (pressure reduction vs. shut-off)
Solution Approach 2:
The switch valve unit responds to operating conditions by switching between different connection states. When pressure reduction is needed, it connects the membrane's second side to the outlet pressure zone; when shut-off is needed, it connects to the inlet pressure zone, creating a feedback-based control system that adapts to operational requirements
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
Enables the elimination of the need for a separate shut-off valve, reducing space and cost requirements while maintaining dual functionality.
Implementation Method 1
A first force provided by the spring element acts on a first side of the membrane which tends to open the valve insert
Implementation Method 2
A second force depending on the outlet pressure within the outlet pressure zone acts on a second side of the membrane which tends to close the valve insert
Data Source
Figure 1
Figure 2~4
AI summary
Pressure reducing valve (10), comprising a housing (11) having an inlet (12) providing an inlet pressure zone (13) and an outlet (14) providing an outlet pressure zone (15), further comprising a valve insert (16) positioned within the housing (11), said the valve insert (16) connects the inlet pressure zone (13) to the outlet pressure zone (15) when the valve insert is opened, said the valve insert (16) separates the inlet pressure zone (13) from the outlet pressure zone (15) when the valve insert is closed, wherein the valve insert (16) comprises a a spring element (18) and a membrane (19). The pressure reducing valve (10) comprises a switch valve unit (23) being coupled to the inlet pressure zone (13), the outlet pressure zone (15) and to a pressure zone (20) positioned on a side of the membrane (19) such that in a first switching state of the switch valve unit (23) the pressure zone (20) positioned on the second side of the membrane (19) is connected to outlet pressure zone (15) and disconnected from the inlet pressure zone (13) thereby providing a pressure reducing valve function of the pressure reducing valve (10), and that in a second switching state of the switch valve unit (23) the pressure zone (20) positioned on the second side of the membrane (19) is connected to inlet pressure zone (13) and disconnected from the outlet pressure zone (15) thereby providing a shut off valve function of the pressure reducing valve (10).