Fire-fighting detection device

Abstract

The utility model discloses a fire-fighting detection device which is characterized in that each detector is provided with a fixed angle detection surface, the fixed angle detection surfaces of adjacent detectors are mutually overlapped, and all overlapped detection surfaces form a fire alarm unit; after the scheme is adopted, the detection area is arranged in different areas, and the alarm can be triggered only after the two mutually overlapped detection surfaces simultaneously monitor thermal runaway, so that accurate positioning is provided for the fire spraying situation in different areas; the overlapped part of the two adjacent small-angle detection surfaces of the two spaced detectors is positioned at the position of the lithium battery of the electric bicycle, so that a false alarm condition is avoided.

Description

Technical Field

[0001] The utility model relates to a fire-fighting facility, in particular to a device used for fire-fighting detection. Background Art

[0002] There are nearly 300 million electric bicycles in my country. In the early days, electric bicycles were parked and charged randomly, which caused many fires. Later, the country issued regulations to standardize electric bicycle sheds for parking and charging electric bicycles. Electric bicycle manufacturers generally design detection and protection technologies for overheating, overcurrent, and overvoltage during the charging process, but fires still occur. The existing fire detection schemes are: one is the flame sensor detection scheme. Since there is a process from thermal runaway to fire of the lithium battery of electric bicycles, this flame detection scheme is obviously delayed, and the lithium battery is not easy to extinguish after catching fire, causing great property losses; the second is thermal imaging detection. This scheme has high equipment cost and is easily affected by the environment, such as people lighting and smoking, electric bicycles blocking each other and various models, and different battery installation positions, which are prone to false alarms. Utility Model Content

[0003] The utility model aims to provide a fire detection device with low cost and accurate zoning detection.

[0004] To achieve the above-mentioned purpose, the utility model provides a fire detection device, comprising a plurality of detectors arranged at intervals, wherein the detectors are connected to a fire control system, wherein each of the detectors is provided with a fixed-angle detection surface, the fixed-angle detection surfaces of adjacent detectors overlap with each other, and all overlapping detection surfaces constitute a fire information alarm unit, each detector is provided with a plurality of small detection units, each small detection unit detects a small-angle detection surface, and the control detection surfaces of all small detection units of each detector are combined into the aforementioned fixed-angle detection surface, and the height of the overlapping portion of the two adjacent small-angle detection surfaces of the two spaced detectors is greater than the height of the detected fire source.

[0005] The detector is provided with at least three infrared sensor diodes for detecting the infrared intensity of the burning flame. The infrared sensor diodes correspond to a small-angle detection surface, and a shielding sleeve is arranged outside each infrared sensor diode.

[0006] The detectors are arranged under the roof of the electric bicycle shed, and the fixed-angle detection surfaces of all the detectors cover all the electric bicycle parking spaces.

[0007] After adopting the above scheme, the utility model divides the detection area into zones, and the alarm can only be triggered when two overlapping detection surfaces simultaneously monitor thermal runaway, thereby providing precise positioning for zoned fire extinguishing; since the overlapping parts of the two adjacent small-angle detection surfaces of the two spaced detectors are positioned at the position of the lithium battery of the electric bicycle, false alarms will not occur. BRIEF DESCRIPTION OF THE DRAWINGS

[0008] Figure 1 This is a schematic diagram of the control and measurement partitions of the utility model;

[0009] Figure 2 This is a schematic diagram showing the structure of the detector of the present utility model.

[0010] Description of labels:

[0011] 1. Detector; 11. Infrared sensor diode; 12. Shielding sleeve; 2. Fixed-angle detection surface; 21. Fire information alarm unit; 22. Small detection unit; 23. Overlapping part; 3. Detection of fire source height; 4. Carport. DETAILED DESCRIPTION

[0012] In order to explain the technical content, structural features, achieved objectives and effects of the present invention in detail, the following is a detailed description in conjunction with the implementation modes and the accompanying drawings.

[0013] See also Figure 1 as well as Figure 2 The fire detection device of the utility model is applied to an electric bicycle shed or a charging station (it can also be applied to other fire detection). Six detectors 1 are arranged at intervals on the shed 4. The number of detectors is related to the number of the shed 4 and the electric vehicle parking spaces below. The detectors 1 are connected to the fire control system. Each detector 1 is provided with 5 fan-shaped infrared sensor diodes 11. A shielding sleeve 12 is arranged outside the infrared sensor diode 11. Since the shielding sleeve 12 is arranged outside the infrared sensor diode 11, the infrared sensor diode 11 forms a small angle detection unit 22. The small angle detection units 22 of the five infrared sensor diodes 11 constitute a fixed angle detection surface 2 of the detector ( Figure 1 Six triangles in the figure), the fixed-angle detection surfaces 2 of two adjacent detectors overlap each other, and the fixed-angle detection surfaces of all detectors cover all electric bicycle parking spaces. All overlapping detection surfaces constitute a fire intelligence alarm unit 21, and the alarm can only be triggered after the infrared sensor diodes 11 of the two overlapping small-angle detection units 22 of the fire intelligence alarm unit 21 simultaneously detect thermal runaway. The height of the overlapping part 23 of the two adjacent small-angle detection surfaces of the two spaced detectors is greater than the height 3 of the electric bicycle battery (detecting the fire source), and each infrared sensor diode 11 is provided with an independent IP address, so that at least two to three infrared sensor diodes 11 can accurately detect thermal runaway of the lithium battery, which can provide accurate alarm positioning, so that the fire control system can accurately open the corresponding partition sprinkler to start working.

[0014] The above description is only an embodiment of the utility model, and does not limit the patent scope of the utility model. Any equivalent shape or structural transformation made by using the contents of the utility model specification and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the utility model.

Claims

1. A fire detection device, comprising a plurality of detectors arranged at intervals, the detectors being connected to a fire control system, characterized in that: Each of the detectors is provided with a fixed-angle detection surface, and the fixed-angle detection surfaces of adjacent detectors overlap with each other. All overlapping detection surfaces constitute a fire information alarm unit. Each detector is provided with a number of small detection units, and each small detection unit detects a small-angle detection surface. The control and detection surfaces of all small detection units of each detector are combined into the aforementioned fixed-angle detection surface, and the height of the overlapping part of the two adjacent small-angle detection surfaces of the two spaced detectors is greater than the height of the detected fire source.

2. The fire detection device according to claim 1, characterized in that: The detector is provided with at least three infrared sensor diodes for detecting the infrared intensity of the burning flame. The infrared sensor diodes correspond to a small-angle detection surface, and a shielding sleeve is arranged outside each infrared sensor diode.

3. The fire detection device according to claim 1, characterized in that: The detectors are arranged under the roof of the electric bicycle shed, and the fixed-angle detection surfaces of all the detectors cover all the electric bicycle parking spaces.

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