Self-Supporting Boiler Cascade Unit for Faster Installation
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Solution Overview
Problem
Existing cascade units for heating systems with multiple boilers require extensive on-site installation work and precise adjustments, leading to potential errors and increased costs due to the need for suspending boilers from walls or ceilings, which complicates the hydraulic connection and weight distribution.
Innovation Solution
A self-supporting cascade unit design that integrates a support frame for attaching boilers, allowing for prefabrication and easy transport, reducing on-site installation efforts by connecting only to the heating network, fuel, exhaust, and electrical lines at minimal points, and featuring a modular structure for adaptable heating output.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If boilers are suspended from wall or ceiling using separate frames or supports, then the boiler weight is properly supported, but the installation work on site increases and positioning precision requirements increase
Solution Approach 1:
The patent combines the support frame function with the cascade unit structure itself. The cascade unit's housing and mounting elements are integrated to directly support the boiler weight, eliminating the need for separate wall or ceiling suspension frames. This merging reduces the number of components and simplifies the overall installation process while maintaining adequate support capacity.
Solution Approach 2:
The cascade unit is designed to perform multiple functions: hydraulic connection between boilers, structural support for the boilers, and positioning alignment. By making the cascade unit multi-functional, the patent eliminates the need for dedicated separate support structures, thereby reducing installation complexity while maintaining strength requirements.
2Strength
If boilers are mounted on wall or ceiling with separate frames, then the boiler weight is properly supported, but extensive on-site installation work and precise positioning are required
Solution Approach 1:
The support frame and cascade unit are designed as pre-assembled integrated components that can be prepared in advance. The mounting elements and alignment features are built into the cascade unit structure before delivery to the installation site, reducing the time required for on-site assembly and positioning work.
3Device complexity
If cascade unit is designed without integrated support frame, then the hydraulic connections can be simplified, but the boiler weight cannot be supported and separate mounting is required
Solution Approach 1:
The patent merges the hydraulic connection function with the structural support function in a single integrated cascade unit design. The housing and mounting elements of the cascade unit simultaneously provide both hydraulic pathways and mechanical support for the boilers, eliminating the need for separate support structures while maintaining hydraulic connection simplicity.
Data Source
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AI summary
The unit has two central heating boilers (2) e.g. condensing boilers, and a hydraulic guide (5) that is connected with a feed and a return of the boilers and with heating circuit feed (55) and return (56). A horizontally running boiler feed-accumulator (3) and a boiler return-manifold (4) are connected with the guide and are arranged with connection pieces (32, 42) for connection of the heating circuit feed and the return. The unit forms an integral supporting frame (10), where one of the boilers is attached to the frame.