Diffuser Tube Drill Holes for Uniform Gas Dispersion

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Solution Overview

Problem

Conventional gas extinguishing systems are not suited for gridded structural systems like small-parts storage systems, as they struggle to effectively and gently disperse inert gas due to the complex layout and high density of partitions, leading to inadequate fire suppression and potential damage to stored materials.

Innovation Solution

A gas extinguishing system featuring a diffuser tube with multiple drill holes and a pressure reducer with a baffle, allowing for radial introduction of inert gas and gentle flooding, ensuring even distribution and minimizing pressure-related damage, while maintaining compatibility with standard gas extinguishing system configurations.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If conventional gas extinguishing systems are used in gridded structural systems, then the system structure can be maintained, but the inert gas cannot be effectively dispersed and fire suppression is inadequate

Engineering Contradiction:
Improvefire suppression effectivenessVSAvoidsystem adaptability to gridded structures
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The diffuser tube is segmented with multiple drill holes distributed along its length, allowing the inert gas to be dispersed into multiple smaller jets rather than a single concentrated stream. This segmentation enables effective penetration and distribution of inert gas throughout the gridded storage structure, resolving the contradiction between maintaining system structure and achieving effective fire suppression.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The invention transitions from conventional linear nozzle arrangements to a multi-dimensional diffuser tube with drill holes distributed along its entire length. This dimensional change allows inert gas to be introduced radially in multiple directions simultaneously, improving dispersion effectiveness in the three-dimensional gridded storage environment without complicating the overall system architecture.

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

2Productivity

If high pressure inert gas is introduced rapidly, then fire suppression speed is improved, but stored materials may be damaged by pressure effects

Engineering Contradiction:
Improvefire extinguishing speedVSAvoidpressure damage to stored materials
Core Design Contradiction:
ProductivityVSObject-affected harmful factors

Solution Approach 1:

The high-pressure inert gas stream is segmented into multiple smaller jets through the distributed drill holes in the diffuser tube. This segmentation allows the total gas flow to maintain high extinguishing speed while each individual jet has reduced pressure, preventing pressure-related damage to stored materials while achieving rapid fire suppression.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The diffuser tube acts as an intermediary component between the high-pressure gas source and the stored materials. It mediates the pressure reduction and distributes the gas flow in a controlled manner, enabling rapid inert gas introduction without directly exposing stored materials to damaging pressure shocks.

Inventive Principle:
Principle #24Intermediary (Mediator)

3Object-affected harmful factors

If inert gas is introduced gently to avoid damage, then stored materials are protected, but fire suppression effectiveness is reduced

Engineering Contradiction:
Improveprotection of stored materialsVSAvoidfire suppression effectiveness
Core Design Contradiction:
Object-affected harmful factorsVSReliability

Solution Approach 1:

The gas introduction system segments the flow into multiple controlled jets through distributed drill holes. This allows gentle, controlled introduction of inert gas that protects stored materials from pressure damage while maintaining sufficient cumulative gas flow to achieve effective fire suppression through widespread distribution.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The diffuser tube creates locally optimized gas flow patterns by distributing drill holes along its length. Each location receives appropriately scaled gas flow tailored to the local storage environment, enabling gentle gas introduction that protects materials while maintaining overall fire suppression effectiveness through coordinated local actions.

Inventive Principle:
Principle #3Local quality

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 system achieves effective and uniform dispersal of inert gas in gridded structural systems, ensuring efficient firefighting without damaging stored materials, and is easily integratable with existing gas extinguishing system designs and configurations.

Implementation Method 1

The diffuser tube (7) is designed to redirect the inert gas flow from the longitudinal direction of the diffuser tube (7) into a radial direction relative to the diffuser tube (7) and non-reactively release the inert gas into the protected area (14). At least a portion of the inert gas provided by the inert gas source (2) can be introduced radially into the protected area (14) relative to the longitudinal direction of the diffuser tube (7).

Methodology Applied
Scientific EffectDiffusion: Diffusion

Implementation Method 2

the diffuser system (4) has a pressure reducer (8) allocated to the at least one diffuser tube (7), wherein the pressure reducer (8) is, in terms of the flow, disposed between the tubing system (3) and the at least one diffuser tube (7).

Methodology Applied
Scientific EffectPressure reduction: Pressure Drop

Data Source

PatentUS9956444B2Gas extinguishing system
Publication Date: 2018.05.01 WAGNER GROUP GMBH
  • US9956444B2 patent drawing
  • US9956444B2 patent drawing
  • US9956444B2 patent drawing

AI summary

The present invention relates to a gas extinguishing system for a predefined protected area, particularly small-parts storage systems, wherein the gas extinguishing system comprises an inert gas source and a diffuser system fluidly connected to the inert gas source by a tubing system. The diffuser system comprises a diffuser tube having a plurality of drill holes provided in the surface of the diffuser tube and a pressure reducer allocated to the diffuser tube. In order to be able to achieve non-interactiveness with respect to the diffuser system from the standpoint of the design of the gas extinguishing system, the inventive provides for designing the diffuser system such that a primary baffle pressure measured in absolute bar is at least twice as high as the internal pressure of the diffuser tube during the flooding period dimensioned for the protected area and that the internal pressure of the diffuser tube during the dimensioned flooding period is at a maximum of 2 bar absolute.