Gravity-Actuated Sealing Plates Without Pressurized Fluid Bias

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Solution Overview

Problem

Existing systems for controlling the flow of molten sulfur rely on pressurized fluids, which require maintenance and are prone to wear, necessitating a solution that provides biasing force without the need for pressurized fluids.

Innovation Solution

A vessel with vertically oriented, O-ring equipped sealing plates that rise and fall with gravity-induced liquid pressure, allowing controlled flow through a liquid outlet when a sufficient pressure is reached, eliminating the need for pressurized fluids.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If pressurized fluid is used to provide biasing force, then reliable flow control is achieved, but device complexity and maintenance requirements increase

Engineering Contradiction:
Improveflow control reliabilityVSAvoidsystem complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The patent extracts and eliminates the pressurized fluid system from the flow control apparatus. By removing the external pressurized fluid source and using only the weight of the molten sulfur itself to provide the biasing force on the sealing plates, the system achieves reliable flow control without the complexity and maintenance requirements of pressurized fluid systems.

Inventive Principle:
Principle #2Taking out (Extraction)

Solution Approach 2:

The molten sulfur serves dual purposes: it is both the material being controlled and the source of the biasing force through its own weight. The liquid pressure generated by the molten sulfur automatically actuates the sealing plates, eliminating the need for external control systems and achieving self-regulating flow control.

Inventive Principle:
Principle #25Self-service

2Device complexity

If spring is used to provide biasing force, then simple mechanism is achieved, but wear and degradation occur over time

Engineering Contradiction:
Improvemechanism simplicityVSAvoidcomponent durability
Core Design Contradiction:
Device complexityVSReliability

Solution Approach 1:

The patent replaces the mechanical spring system with a gravity-based liquid pressure system. Instead of using elastic mechanical components that wear and degrade, the system uses the weight of molten sulfur to provide continuous biasing force on the sealing plates, eliminating wear and degradation issues associated with mechanical springs.

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

3Ease of operation

If pressurized fluid system is implemented, then flow control capability is improved, but maintenance requirements increase

Engineering Contradiction:
Improveflow control capabilityVSAvoidmaintenance requirements
Core Design Contradiction:
Ease of operationVSEase of repair

Solution Approach 1:

The patent removes the pressurized fluid system entirely, extracting only the essential function of providing biasing force. By using the weight of the molten sulfur itself to actuate the sealing plates, the system maintains effective flow control capability while eliminating all maintenance requirements associated with pressurized fluid systems.

Inventive Principle:
Principle #2Taking out (Extraction)

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 reliable and maintenance-free control of molten sulfur flow, ensuring efficient operation by utilizing gravity-induced pressure to manage the flow, reducing the reliance on pressurized fluids and minimizing wear.

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 in the sump of the vessel

Methodology Applied
Scientific EffectGravity-induced pressure: Gravitation

Data Source

PatentUS11732815B2Gravity actuated flow control apparatus and method
Publication Date: 2023.08.22 SMITH STROM W
  • US11732815B2 patent drawing
  • US11732815B2 patent drawing
  • US11732815B2 patent drawing

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.