Toroidal Pressure Tank With Central Coupler For Volume And Safety

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Solution Overview

Problem

Existing pressure tanks face challenges in efficiently managing internal volume, material distribution, and safety during blowout, particularly due to the lack of control over the flow and direction of the working medium, and require complex welding processes for equipment installation.

Innovation Solution

A pressure tank design featuring a central coupler with multiple shells, where the external shells are connected through a central bush with circumferential narrowing, allowing for increased internal volume, reduced material usage, and controlled blowout direction, along with pointwise fixing of data plates for easier installation.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Device complexity

If equipment is welded on the outer shell, then the tank structure is simplified, but the tank volume increases and safety decreases due to earlier blowout

Engineering Contradiction:
Improvetank structureVSAvoidtank safety
Core Design Contradiction:
Device complexityVSReliability

Solution Approach 1:

The tank is divided into multiple shells (outer shell, intermediate shell, inner shell) with equipment welded on the inner shell rather than the outer shell. This segmentation allows the outer shell to maintain structural integrity and withstand higher pressures before blowout, while the inner shell accommodates equipment without compromising overall safety.

Inventive Principle:
Principle #1Segmentation

2Ease of manufacture

If the central tube is used without filling, then the manufacturing is simpler, but the internal volume is reduced

Engineering Contradiction:
Improvemanufacturing simplicityVSAvoidinternal volume
Core Design Contradiction:
Ease of manufactureVSVolume of stationary object

Solution Approach 1:

The central tube is designed to be filled with the stored medium (gas or liquid), allowing it to serve dual purposes: as a structural component during manufacturing and as additional storage volume during operation. This eliminates wasted space and maximizes the tank's internal volume without requiring complex additional structures.

Inventive Principle:
Principle #25Self-service

3Device complexity

If the central tube design is used, then the structure is simpler, but the level height of working medium increases and valve design becomes more complex

Engineering Contradiction:
Improvestructural complexityVSAvoidvalve design and installation
Core Design Contradiction:
Device complexityVSEase of operation

Solution Approach 1:

The patent repositions valves and connectors from the traditional central tube location to the inner shell wall, changing the spatial dimension of equipment installation. This allows valves to be mounted at optimal heights and positions on the inner shell, reducing the required level height of working medium and simplifying valve design and installation while maintaining structural simplicity.

Inventive Principle:
Principle #17Another dimension (Dimensionality change)

4Weight of moving object

If material is reduced for weight savings, then the mobility is improved, but the strength and blowout resistance decreases

Engineering Contradiction:
Improvetank weightVSAvoidblowout resistance
Core Design Contradiction:
Weight of moving objectVSStrength

Solution Approach 1:

The tank employs a composite multi-shell structure where outer shell, intermediate shell, and inner shell work together as an integrated system. This composite construction distributes stress across multiple layers, providing enhanced blowout resistance and structural strength while using optimized material thickness in each shell to minimize overall weight compared to a single thick-walled design.

Inventive Principle:
Principle #40Composite materials

Data Source

PatentEP2223005B1Pressure tank
Publication Date: 2012.09.05 ELPIGAZ SP ZOO
  • EP2223005B1 patent drawingFigure 1
  • EP2223005B1 patent drawingFigure 2~3
  • EP2223005B1 patent drawingFigure 4

AI summary

The subject of invention is the pressure tank, especially four-bottoms tank, especially the tank for volatile and liquid pressure gases as well as liquids, used in vehicles, machines, stationary and mobile devices. Pressure tank, according to the invention, creating beneficially toroidal tank, containing connected together bottoms, equipped with connector pipes for fittings, brackets for fixing the tank and cover, cover for fittings, central coupler with holes and central bush is characterized in that it comprises at least four tightly connected bottoms, where the outer, upper bottom (1) with outer, lower bottom (2) create the outer tank shell, whereas the inner, upper bottom (3) is connected to inner, lower bottom (4) through the central bush (5) and beneficially the outer shell (6) with holes (7) create the central coupler (A), containing the additional work space (B).