Electromagnetic Diaphragm Pump Pressure Equalization
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Solution Overview
Problem
The electromagnetic vibrating diaphragm pump faces performance degradation due to increased pressure differences between the compression chamber and the frame, which hampers diaphragm movement and fluid discharge, especially when dealing with pressurized gases like flammable gases.
Innovation Solution
The pump design includes a continuous hole in the sidewalls of the pump casing and frame, allowing communication between the suction/exhaust chamber and the frame, which equalizes pressures on both sides of the diaphragm, maintaining large vibration amplitude and efficient discharge even under high pressure conditions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the pump handles pressurized gases, then the pumping capability is improved, but the pressure difference between compression chamber and frame increases causing diaphragm movement to be hampered
Solution Approach 1:
The patent introduces a communication hole between the frame interior and the compression/exhaust chambers to equalize the pressure on both sides of the diaphragm. This pressure equalization eliminates the pressure difference that hampers diaphragm movement, allowing the pump to handle pressurized gases effectively while maintaining full diaphragm oscillation amplitude.
2Stress or pressure
If the pressure in compression chamber increases, then the discharge pressure is improved, but the vibration amplitude of diaphragm decreases due to pressure difference
Solution Approach 1:
By creating a pressure communication path through the hole in the frame, the patent ensures that the pressure in the compression and exhaust chambers is transmitted to the frame interior. This equalizes the pressure distribution around the diaphragm, maintaining large vibration amplitude even when discharge pressure is high.
3Adaptability or versatility
If the pump handles flammable pressurized gas, then the application versatility is improved, but the performance degradation occurs due to high pressure difference
Solution Approach 1:
The communication hole structure allows the pump to reliably handle flammable pressurized gases by equalizing pressures. This prevents performance degradation while expanding the pump's applicability to hazardous gas handling scenarios.
Solution Approach 2:
The hole in the frame acts as an intermediary pressure equalization path, mediating between the high-pressure compression/exhaust chambers and the frame interior. This intermediary structure enables safe and reliable handling of pressurized flammable gases without direct exposure to extreme pressure differences.
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 design enhances the pump's efficiency by reducing pressure differences, enabling effective discharge of high-pressure gases with a strong discharging force, similar to atmospheric pressure conditions, thus maintaining high performance even when handling pressurized gases.
Implementation Method 1
the oscillator 110 moves to the left due to the attraction and repulsion of north pole and south pole of the magnets 111a, 111b, when current flows into exciting coils 132 so as to generate south pole on the central part of an E-shaped iron core 131 of the electromagnet 130a
Data Source
AI summary
An electromagnetic vibrating diaphragm pump capable of increasing pump efficiency by increasing the vibration amplitude of the vibration of diaphragms even when the pressure inside a compression chamber is high. Diaphragms are fixed to both end portions of an oscillator having magnets. AC driven electromagnets are provided in a manner to face the magnets of the oscillator. A frame adhered to the outer peripheries of the diaphragms covers the electromagnet side, and pump casings cover the opposite sides. The pump casing includes a compression chamber adjacent to the diaphragm, a suction chamber connected to the compression chamber via a suction valve and an exhaust chamber connected to the compression chamber via an exhaust valve, the suction chamber or the exhaust chamber being connected to the frame via a continuous hole.