炎検知装置

JP7891936B2Inactive Publication Date: 2026-07-17NOHMI BOSAI LTD
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Patent Information

Authority / Receiving Office
JP · JP
Patent Type
Patents
Current Assignee / Owner
NOHMI BOSAI LTD
Filing Date
2023-01-26
Publication Date
2026-07-17
Estimated Expiration
Not applicable · inactive patent

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Patent Text Reader

Abstract

To provide a flame detecting device which can protect a light receiving window of a flame detector from being soiled by weather, and can reduce a workload during installation and maintenance inspection.SOLUTION: A flame detecting device comprises: a flame detector having a light receiving element which receives, as infrared light, radiant energy of a flame occurring in an effective monitoring space of a monitoring area, and outputting a fire signal when detecting an occurrence of a fire based on an amount of light received by the light receiving element; and a reflection case having a reflection surface which reflects the infrared light generated in the effective monitoring space and focuses the reflected infrared light onto the light receiving element.SELECTED DRAWING: Figure 1
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