Gravity Sealing Plate Flow Control for Molten Sulfur
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Solution Overview
Problem
Existing systems for controlling the flow of molten sulfur rely on pressurized fluids, which require maintenance and can degrade over time, posing challenges in providing a consistent biasing force for fluid flow control.
Innovation Solution
A vessel with vertically oriented, O-ring equipped sealing plates that rise and fall with gravity-induced liquid pressure, allowing fluid communication with a liquid outlet only when sufficient pressure is reached, eliminating the need for pressurized fluids by utilizing the weight of the liquid and its vapor pressure for flow control.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If pressurized fluid is used to provide biasing force, then flow control function is achieved, but system complexity and maintenance requirements increase
Solution Approach 1:
The patent removes the pressurized fluid system entirely and replaces it with a gravity-based sealing plate mechanism. The biasing force is now provided by the weight of the sealing plates themselves, eliminating the need for external pressurized fluid supplies, pumps, and associated control systems, thereby reducing device complexity while maintaining flow control reliability
Solution Approach 2:
The sealing plates are designed to be self-actuating through gravity. When liquid level rises, the plates automatically lift due to buoyancy and weight distribution; when liquid level drops, they automatically return to sealing position under their own weight. This self-service mechanism eliminates the need for external pressurized fluid systems, reducing both device complexity and maintenance requirements
2Reliability
If pressurized fluid system is used, then flow control is achieved, but maintenance requirements increase over time
Solution Approach 1:
The sealing plates are designed as simple, robust components made from readily available materials that can withstand repeated cycles of lifting and sealing. Their simple construction makes them inexpensive to replace if wear occurs, and their gravity-based operation eliminates the complex pressurized fluid components that would require extensive maintenance, thereby improving ease of repair while maintaining flow control consistency
Solution Approach 2:
By removing the pressurized fluid system entirely, the patent eliminates pumps, pressure vessels, seals, and control valves that would all require periodic maintenance. The remaining gravity-based sealing plate system has minimal moving parts and no consumable fluids, dramatically reducing maintenance requirements while maintaining reliable flow control
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 solution provides a reliable and maintenance-free method for controlling molten sulfur flow, ensuring efficient fluid communication without the need for pressurized fluids, thereby reducing operational costs and extending system lifespan.
Implementation Method 1
a pair of connected, horizontally oriented, O-ring equipped sealing plates that are designed to rise and fall as a pair in response to gravity provided liquid pressure
Implementation Method 2
a vapor space pressure equalization line
Data Source
AI summary
Embodiments of a flow control apparatus of the present invention generally include a vessel equipped with a substantially vertical, bottom-feeding liquid inlet line, a vapor space pressure equalization line, and a liquid outlet, wherein the vessel contains a pair of connected, horizontally oriented, O-ring and/or piston ring equipped sealing plates that are designed to rise and fall as a pair in response to gravity provided liquid pressure in the sump of the vessel, whereby an elevation of the sealing plates provides the liquid in fluid communication with the liquid outlet via internal orifices fluidly connected to one or more fluid conduits. Embodiments of a method of using embodiments of an apparatus of the present invention to control liquid flow are also provided.