Detonator Securement Device for Accidental Ignition Prevention
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Solution Overview
Problem
Existing detonator arrangements lack sufficient safety measures during handling, transportation, and storage, as they can unintentionally ignite and cause detonation, leading to potential hazards and increased costs due to classification requirements.
Innovation Solution
A detonator arrangement with a movable securement device that can be positioned to prevent or allow the transfer of the initiation charge's detonation to the base charge, featuring an insulating layer and a housing design that controls deflagration to detonation transition, ensuring the detonator remains unfired in secure mode and fires only when intentionally activated.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a safety distance between primary charge and main charge is used (DE2900067), then some security degree is reached, but the detonator will still fire once the ignition of the delay charge is achieved
Solution Approach 1:
The initiation charge is divided into two separate components: a connector containing the initiation charge and a body containing the base charge. These components are kept physically separated by a securement device until activation, preventing any unintended interaction while allowing controlled detonation when needed.
Solution Approach 2:
The securement device acts as an intermediary barrier between the initiation charge and the base charge. It physically prevents the transfer of detonation from the initiation charge to the base charge during storage and handling, but can be removed or actuated to allow controlled detonation when intended use is required.
2Reliability
If the detonator is designed with higher safety measures, then accidental detonation is prevented, but packaging density increases and costs increase due to hazard classification requirements
Solution Approach 1:
The securement device is designed to be movable relative to the detonator components. It can be in a secured position during storage and transport to prevent firing, and then moved or actuated during intended use to allow controlled detonation. This dynamic capability enables dense packaging while maintaining safety during storage.
3Reliability
If the securement device is positioned to prevent detonation transfer, then safety is improved, but the detonator cannot be activated
Solution Approach 1:
The securement device is pre-positioned in a secured state during storage, transport, and handling to prevent any accidental detonation. The detonator is designed to be ready for use but held in check by the securement device, which can be quickly removed or actuated when intended use is required, enabling both safety during storage and ease of activation when needed.
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 enhanced safety design prevents accidental detonation, allowing for denser packaging and reduced costs by meeting lower hazard classification standards, while ensuring the detonator can be safely handled, transported, and stored without risk of unintentional ignition.
Implementation Method 1
the securement device when in said second position is disposed to ensure a transition from deflagration to detonation of said initiation charge
Implementation Method 2
the ignition of the initiation charge will be strong enough to initiate the base charge, whereby detonation of the base charge is avoided
Implementation Method 3
an insulating layer is disposed between the initiation charge and the base charge
Data Source
Figure 1A~2B
Figure 3A~4B
AI summary
A detonator arrangement (10) comprising a detonator (1) having an initiation charge (2) and a base charge (3), which initiation charge (2) is arranged to initiate a detonation of said base charge (3), characterized in that the said detonator arrangement (10) comprises a securement device (5, 72, 64) movable in relation to the detonator (1), which securement device (5, 72, 64) can be disposed in a first position arranged to prevent a transfer of the detonation of the initiation charge (2) to the base charge (3), whereby the detonation of the base charge is avoided, and in a second position arranged to allow the transfer of the detonation of the initiation charge (2) to the base charge (3), whereby the detonation of the base charge is obtained.