Booster Pump Valve Core Support With Heat-Blocking Diaphragm Interface
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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+30 GF or ceramics, and a tapered guide groove design for precise 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 pumping capacity is improved, but the heating phenomenon of motors and bearings becomes more obvious and the diaphragm temperature increases
Solution Approach 1:
A heat-blocking member is introduced as an intermediary component between the base and the diaphragm. This heat-blocking member is made of materials with low thermal conductivity (such as PA6+30 GF or ceramics) to interrupt the heat transfer path from the motor and bearings to the diaphragm, thereby reducing diaphragm temperature while maintaining high flow rate operation
Solution Approach 2:
The base structure is segmented by dividing it into an upper base and a lower base with the heat-blocking member positioned between them. This segmentation allows the heat-blocking member to be independently installed and positioned to effectively block heat transfer to the diaphragm while maintaining the structural integrity and high flow rate capability of the pump
2Device complexity
If the base directly contacts the diaphragm to provide support, then the structural simplicity is maintained, but the heat transfer rate from the bearing support to the diaphragm increases
Solution Approach 1:
The heat-blocking member serves as an intermediary component inserted between the base and the diaphragm contact interface. This intermediary element maintains the mechanical support function while blocking thermal energy transfer, thereby extending diaphragm service life without significantly increasing structural complexity
Solution Approach 2:
The heat-blocking member is made from composite materials or materials with specific thermal properties (such as PA6+30 GF or ceramics) that provide both mechanical support capability and low thermal conductivity, allowing the structure to maintain simplicity while improving reliability by reducing heat transfer to the diaphragm
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, lowers fault rates, and optimizes the structure for high-flow rate operations while 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 valve core assembly includes an eccentric wheel including a shaft body, a support mechanism sleeved on the shaft body, and a diaphragm connected to the support mechanism. An included angle is formed between an axis of the shaft body and a rotation axis of the eccentric wheel. An intersection point of the rotation axis and the axis of the shaft body is located on a surface of the diaphragm or within the diaphragm.