Composite Fire Detector with Peripheral Inlets
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Solution Overview
Problem
Conventional composite fire detectors face challenges in achieving a wide detection range due to complex structures and potential directional dependencies affecting the detection of carbon monoxide, smoke, and heat.
Innovation Solution
A composite fire detector design featuring a housing with carbon monoxide, smoke, and heat detectors arranged at different heights, with inlets arranged at regular intervals around the periphery, allowing for a wide detection area without the need for complex structures, and ensuring non-directional detection capabilities.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional composite fire detectors are designed with multiple detection components, then detection functionality is improved, but device complexity increases
Solution Approach 1:
The patent combines carbon monoxide detection, smoke detection, and heat detection functions into a single integrated detector body. Multiple detection components are merged into one unified device, achieving comprehensive fire detection while maintaining structural simplicity through functional integration.
Solution Approach 2:
The detector body is designed to perform multiple detection functions simultaneously - detecting carbon monoxide concentration, smoke density, and temperature changes. This multi-functional design allows a single device to cover various fire detection needs without requiring separate specialized detectors.
2Area of stationary object
If detectors are arranged to cover wide detection area, then detection coverage is improved, but device complexity increases
Solution Approach 1:
The detector body is segmented into distinct functional zones with separate inlet ports for carbon monoxide, smoke, and heat detection arranged at different heights. This segmentation allows each detection component to operate independently while maintaining an overall simple cylindrical structure, achieving wide detection coverage without complex internal arrangements.
Solution Approach 2:
The patent utilizes vertical dimension by arranging detection components and inlet ports at different heights within the cylindrical detector body. This three-dimensional arrangement enables comprehensive detection coverage in multiple directions and atmospheric layers without requiring a complex horizontal expansion of the device structure.
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 design enables effective detection of carbon monoxide, smoke, and heat over a wide range, regardless of mounting direction, while preventing directional dependencies that could impact detection properties, thus meeting international standards like prEN54-31.
Implementation Method 1
a carbon monoxide detector (4) configured to detect carbon monoxide
Implementation Method 2
a smoke detector (5) configured to detect smoke
Implementation Method 3
a heat detector (6) configured to detect heat
Data Source
Figure 1~2
Figure 3
Figure 4
AI summary
A composite fire detector (1) includes: a housing (3); a carbon monoxide detector (4) configured to detect carbon monoxide; a smoke detector (5) configured to detect smoke; and a heat detector (6) configured to detect heat. The carbon monoxide detector (4), the smoke detector (5) and the heat detector (6) are arranged at different heights in the housing (3). A periphery of the housing (3) is shaped like a circle. The housing (3) is formed with: carbon monoxide inlets (37) arranged at regular intervals in a peripheral direction of the housing (3); smoke inlets (38) arranged at regular intervals in the peripheral direction of the housing (3); and heat inlets (39) arranged at regular intervals in the peripheral direction of the housing (3).