Fitting assembly for treating water for heating circuits
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Solution Overview
Problem
Existing fitting arrangements for water treatment in heating circuits are complex, costly, and inefficient due to separate housings for system separators and pressure reducers, leading to high installation effort and production costs, with unknown actual filling pressure due to additional pressure drops from downstream water treatment devices.
Innovation Solution
Integration of the system separator arrangement and pressure reducer into a single housing with the water treatment device, where the pressure reducer is positioned after the water treatment device to set the actual inflation pressure, and all components are aligned in one plane for easy assembly and maintenance, using a compact design with interchangeable cartridges.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If separate housings are used for system separator and pressure reducer, then each component can be independently manufactured and maintained, but the installation effort and production costs increase significantly
Solution Approach 1:
The patent combines the system separator and pressure reducer into a single integrated housing, eliminating the need for separate housings and flange connections. This merging reduces the number of parts, simplifies assembly, and lowers production costs while maintaining the independent functionality of each component through internal separation.
2Measurement precision
If pressure reducer is mounted before water treatment device, then filling pressure can be regulated, but the actual filling pressure remains unknown due to additional pressure drop
Solution Approach 1:
The patent inverts the conventional arrangement by placing the pressure reducer after the water treatment device instead of before it. This inversion allows the pressure reducer to set the actual filling pressure directly at the point of use, eliminating the uncertainty caused by pressure drops in the water treatment device and providing precise pressure control.
3Adaptability or versatility
If multiple modules with flange connections are used, then modular assembly is possible, but the installation effort and production costs increase
Solution Approach 1:
The patent merges multiple functional modules (system separator, water treatment device, pressure reducer) into a single integrated housing with a streamlined flow path, eliminating the need for flange connections and complex modular assembly while maintaining adaptability through internal component configuration.
4Reliability
If complex cast parts with undercuts are used, then component functionality is achieved, but production costs and manufacturing complexity increase
Solution Approach 1:
The patent segments the housing into simple, production-friendly sections that can be manufactured using cost-effective methods such as stamping or extrusion, avoiding complex cast parts with undercuts. The segmentation maintains functional integrity while simplifying the manufacturing process and reducing production costs.
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 configuration results in a cost-effective, easy-to-assemble, and space-efficient solution that accurately regulates filling pressure and allows for adjustable water treatment parameters, enabling efficient water treatment and monitoring of consumables, while reducing production complexity and costs.
Implementation Method 1
a pressure reducer (72) which is located within the valve body in the flow path after the water treatment device (42) and before the outlet stopcock (20)
Implementation Method 2
a backflow preventer assembly (32, 34) having upstream and downstream check valves
Implementation Method 3
If the non-return valve is defective and the inlet pressure drops, a drain valve opens and water flows out
Data Source
Figure 1
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Figure 3
AI summary
A fitting arrangement (10) for water treatment of water for heating circuits, containing a flow-guiding common fitting housing (12) with an inlet (14) and an outlet (16) which can be installed in a pipeline leading to the heating circuit; one inlet-side shut-off valve and one outlet-side shut-off valve (16, 20) each provided on the fitting housing; a water treatment device (42) disposed in the flow path between the inlet and outlet stopcocks; a system separator assembly (84) having upstream and downstream check valves (32, 34) and a drain assembly (36); and a pressure reducer (72); is characterized in that the system separator arrangement (84) is arranged within the fitting housing (12) in the flow path after the inlet-side stopcock (18) and before the water treatment device (42); the pressure reducer (72) is arranged within the fitting housing (12) in the flow path after the water treatment device (42) and before the shut-off valve (20) on the outlet side; and the fitting housing (12) is designed in such a way that the flow through all components (18, 84, 42, 74, 20) runs in one plane.