Heat-Blocking Diaphragm Support for High-Flow Booster Pumps
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Solution Overview
Problem
The increasing flow rates in booster pumps lead to excessive heating of motors and bearings, which reduces the service life and reliability of the diaphragm due to rapid heat transfer, resulting in high fault rates.
Innovation Solution
A support mechanism with a heat-blocking member embedded in a guide groove on the base to reduce heat transfer between the base and diaphragm, using materials like PA6+30GF or ceramics, and a tapered guide groove design for accurate positioning and assembly.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the flow rate of the booster pump is increased to meet market demands, then the productivity is improved, but the temperature of the diaphragm increases due to heat transfer from the bearing support, reducing reliability
Solution Approach 1:
The patent introduces a heat-blocking member as an intermediary component positioned between the bearing support and the diaphragm. This heat-blocking member acts as a thermal barrier that interrupts the direct heat transfer path from the heated bearing support to the diaphragm, thereby protecting the diaphragm from excessive temperature while allowing the pump to operate at higher flow rates
Solution Approach 2:
The patent segments the base structure by dividing it into functionally distinct parts: the bearing support portion and the diaphragm support portion, separated by the heat-blocking member. This segmentation allows each component to perform its specific function independently - the bearing support handles mechanical loads and generates heat, while the heat-blocking member prevents heat transfer, and the diaphragm support maintains diaphragm positioning without exposing it to harmful temperatures
2Productivity
If the flow rate is increased to meet enhanced user needs, then the productivity improves, but the heating phenomenon of motors and bearings becomes more obvious, leading to temperature increase and reduced service life
Solution Approach 1:
The heat-blocking member serves as a thermal intermediary that blocks heat flow from the bearing support to the diaphragm. By positioning this heat-blocking member in the thermal path, the patent effectively decouples the temperature conditions at the bearing support from those at the diaphragm, allowing the diaphragm to remain at lower temperatures even when the pump operates at high flow rates with increased heating
Solution Approach 2:
The patent applies local quality by giving different thermal properties to different parts of the base structure. The heat-blocking member is specifically designed with heat-blocking properties (using materials like PA6+30GF or ceramics) to create a localized thermal barrier, while other parts of the structure maintain their original thermal characteristics for their respective functions
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 heat-blocking member effectively reduces diaphragm temperature, prolongs its service life, and lowers fault rates while maintaining high flow rates, optimizing the structure and reducing costs.
Implementation Method 1
a heat-blocking member provided at the base, and the heat-blocking member is partially embedded in the guide groove, the heat-blocking member is configured to support a diaphragm
Data Source
AI summary
A support mechanism includes a base including a guide groove, and a heat-blocking member provided at the base and partially embedded in the guide groove. The heat-blocking member is configured to support a diaphragm and drive the diaphragm to move. A cross-sectional area of the guide groove gradually decreases along a depth direction of the guide groove.