CN219872532U - Luminous line type fire detector - Google Patents
Luminous line type fire detector Download PDFInfo
- Publication number
- CN219872532U CN219872532U CN202223413050.1U CN202223413050U CN219872532U CN 219872532 U CN219872532 U CN 219872532U CN 202223413050 U CN202223413050 U CN 202223413050U CN 219872532 U CN219872532 U CN 219872532U
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- luminous
- sensing cable
- fire detector
- fire
- light
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- 238000001514 detection method Methods 0.000 claims abstract description 45
- 239000013307 optical fiber Substances 0.000 claims abstract description 17
- 239000000835 fiber Substances 0.000 description 4
- 230000003111 delayed effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
Abstract
The utility model provides a luminous line type fire detector, which comprises a luminous temperature-sensing cable, a signal processing unit and a relay unit, wherein the signal processing unit and the relay unit are respectively connected to two ends of the luminous temperature-sensing cable; the signal processing unit comprises a detection device, a light source device, a signal output display device, a control device and a power supply, wherein the control device is electrically connected with the detection device, the light source device and the signal output display device; the luminous temperature-sensing cable comprises a luminous optical fiber and at least two heat-sensing wire cores which are twisted or arranged in parallel; when the detector detects normal, fault or fire of the luminous temperature-sensing cable, the luminous optical fibers in the luminous temperature-sensing cable respectively emit green light, yellow light and red light, so that the problem that once the detector is arranged in a long and narrow dark channel or pipe gallery, the fault temperature-sensing cable or fire source is difficult to find in time once the detector is in fault or fire is solved, and the fault or fire disposal time is greatly shortened.
Description
Technical Field
The utility model belongs to the technical field of fire detection, and relates to a luminous linear fire detector.
Background
Existing line fire detectors, as shown in FIG. 1: the temperature sensing device comprises a signal processing unit 61, a temperature sensing cable 62 and a terminal resistor 6R; one end of the temperature sensing cable 62 is connected with the signal processing unit 61, the other end is connected with the terminal resistor 6R, and the signal processing unit 61 is also connected with the power line 63. When a certain section of the temperature sensing cable 62 is heated and raised, the resistance value of the temperature sensing cable 62 changes, the signal is transmitted to the signal processing unit 61, and the signal processing unit 61 comprehensively judges the signal and then sends out an alarm signal.
In use, the temperature sensing cables are generally arranged in a long and narrow dark channel or pipe gallery and are arranged in 2-3 line type fire detectors in the same area, wherein each temperature sensing cable is laid 200-500 m long and even up to 1000 m long, the temperature sensing cables are laid in a crossed mode, and the signal processing units and the temperature sensing cables are often arranged in different areas, so that when a fire or cable fault occurs, a great deal of time is spent on finding the fire source and the temperature sensing cables, and the time for rescuing the fire or maintaining the cables is delayed.
Disclosure of Invention
In order to solve the problems, the utility model provides a luminous line type fire detector which can timely find a fire source and a fault temperature sensing cable when a fire or temperature sensing cable fails, timely rescue or maintain the fire source and the fault temperature sensing cable and is arranged in a long and narrow and dark channel or pipe gallery, and comprises a luminous temperature sensing cable, a signal processing unit and a relay unit which are respectively connected with two ends of the luminous temperature sensing cable; the signal processing unit comprises a detection device, a light source device, a signal output display device, a control device and a power supply, wherein the control device is electrically connected with the detection device, the light source device and the signal output display device; the luminous temperature-sensing cable comprises a luminous optical fiber and at least two heat-sensing wire cores which are twisted or arranged in parallel; a terminal resistor R is arranged in the relay unit; the terminal resistor R is connected with the at least two thermosensitive wire cores and the detection device to form a detection loop; one end of the luminous optical fiber is connected with the light source device, and the other end of the luminous optical fiber is connected with the relay unit.
Preferably, the parallel arrangement is a twisted structure, a parallel structure or a coaxial structure.
Preferably, the control device controls the light source device to emit green light, yellow light and red light, respectively.
Preferably, the detection circuit is a recoverable or non-recoverable detection circuit.
Preferably, the detection circuit is an analog or switching detection circuit.
Preferably, the detection circuit is a detection circuit of series thermal characteristics or parallel thermal characteristics.
According to the utility model, the luminous optical fiber loop is arranged in the existing line type fire detector, when the detector detects that the luminous temperature sensing cable is normal, fault or fire, green light, yellow light and red light are respectively emitted through the luminous optical fibers in the luminous temperature sensing cable, so that the problem that once the line type fire detector arranged in a long and narrow and dark channel or pipe gallery is in fault or fire, the fault temperature sensing cable or fire source is difficult to find in time is solved, the fault or fire disposal time is greatly shortened, and a powerful guarantee is provided for safe production.
Drawings
FIG. 1 is a schematic view of a prior art line type fire detector;
fig. 2 is a schematic diagram of a light-emitting line type fire detector according to the present utility model.
Detailed Description
The following describes a light-emitting line type fire detector according to the present utility model in detail with reference to the accompanying drawings and embodiments.
As shown in fig. 2, the luminous line type fire detector provided by the utility model comprises a signal processing unit 1, a luminous temperature sensing cable 2 and a relay unit 3.
The signal processing unit 1 comprises a detection device 11, a light source device 12, a signal output display device 13, a control device 14 and a power supply 15, wherein the control device 14 is electrically connected with the detection device 11, the light source device 12 and the signal output display device 13; the luminous temperature-sensing cable 2 comprises a luminous optical fiber 22 and at least two thermosensitive wire cores 21 which are arranged in parallel and are twisted or arranged together (the parallel arrangement can be in a twisted, parallel, coaxial or other arrangement mode); a terminal resistor R is arranged in the relay unit 3, and the terminal resistor R, the thermosensitive wire core 21 and the detection device 11 form a detection loop; one end of the light emitting fiber 22 is connected with the light source device 12, and the other end is connected with the relay unit 3.
The working principle of the luminous line type fire detector is as follows:
during normal operation, the detection device 11 detects the resistance data of the detection loop, namely the resistance data between the thermosensitive wire cores 21 in real time, when the resistance of the detection loop is detected to be in a normal range, a detection signal is transmitted to the control device 14, the control device 14 controls the light source device 12 to emit green light and transmit the luminous optical fiber 22 after judging, and meanwhile, the control signal output display device 13 outputs a normal signal; thus, the light-emitting fiber 22 emits green light to indicate that the line-type fire detector works normally and has no fire, and the outer sheath layer is generally thinner (0-2 mm) although the temperature sensing cable 2 is generally wrapped at the outermost layer, so that part of light can be transmitted through the outer sheath layer, and the light emitted by the light-emitting fiber can still be visually detected. When a short circuit occurs between the thermosensitive wire cores 21 or one of the thermosensitive wire cores is broken, the detection device 11 detects that the resistance value of the detection loop is in a fault range, and transmits a detection signal to the control device 14, and after the detection signal is judged by the control device 14, the control device 14 controls the light source device 12 to emit yellow light and transmit the luminous optical fiber 22, and simultaneously controls the signal output display device 13 to output a fault signal; thus, the light-emitting optical fiber 22 emits yellow light to indicate that the light-emitting temperature-sensing cable 2 of the line type fire detector is out of order and needs to be maintained. When the heated temperature of the light-emitting temperature-sensing cable 2 rises, the detection device 11 detects that the resistance value of the detection loop reaches the fire alarm range, the detection signal is transmitted to the control device 14, the control device 14 controls the light source device 12 to emit red light and transmit the light-emitting optical fiber 22 after judging, and meanwhile, the control signal output display device 13 outputs the fire alarm signal. In this way, the light emitting fiber 22 emits red light, indicating that the detection zone has or is about to be in fire.
The detection circuit in the utility model is a recoverable or non-recoverable detection circuit.
The detection loop is an analog or switching value detection loop.
The detection loop in the utility model is a detection loop with series thermosensitive characteristics or parallel thermosensitive characteristics.
The main key point of the utility model is that a luminous optical fiber loop is arranged in the existing line type fire detector, when the detector detects that the luminous temperature sensing cable is normal, fault or fire, green light, yellow light and red light are respectively emitted through the luminous optical fibers in the luminous temperature sensing cable, so that the problem that once the fire detector is in fault or fire, the line type fire detector arranged in a long and narrow and dark channel or pipe gallery is difficult to find the fault temperature sensing cable or fire source in time is solved. The claims describe the scope of the utility model, however, any variations that do not depart from the gist of the utility model are intended to be within the scope of the utility model.
Claims (6)
1. The luminous line type fire detector is characterized by comprising a luminous temperature-sensing cable, a signal processing unit and a relay unit, wherein the signal processing unit and the relay unit are respectively connected to two ends of the luminous temperature-sensing cable; the signal processing unit comprises a detection device, a light source device, a signal output display device, a control device and a power supply, wherein the control device is electrically connected with the detection device, the light source device and the signal output display device; the luminous temperature-sensing cable comprises a luminous optical fiber and at least two heat-sensing wire cores which are twisted or arranged in parallel; a terminal resistor R is arranged in the relay unit; the terminal resistor R is connected with the at least two thermosensitive wire cores which are arranged in parallel and the detection device to form a detection loop; one end of the luminous optical fiber is connected with the light source device, and the other end of the luminous optical fiber is connected with the relay unit.
2. A luminescent line fire detector as claimed in claim 1, wherein the parallel arrangement is a twisted configuration, a parallel configuration or a coaxial configuration.
3. The luminescent line fire detector of claim 2, wherein the control means controls the light source means to emit green light, yellow light and red light, respectively.
4. A luminescent line fire detector as claimed in claim 1 or 2 or 3, wherein the detection circuit is a recoverable or non-recoverable detection circuit.
5. A luminescent line fire detector as claimed in claim 1 or 2 or 3, wherein the detection circuit is an analog or switching detection circuit.
6. A luminescent line fire detector as claimed in claim 1, 2 or 3, wherein the detection circuit is a series or parallel thermal characteristic detection circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223413050.1U CN219872532U (en) | 2022-12-20 | 2022-12-20 | Luminous line type fire detector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223413050.1U CN219872532U (en) | 2022-12-20 | 2022-12-20 | Luminous line type fire detector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219872532U true CN219872532U (en) | 2023-10-20 |
Family
ID=88342907
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223413050.1U Active CN219872532U (en) | 2022-12-20 | 2022-12-20 | Luminous line type fire detector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219872532U (en) |
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2022
- 2022-12-20 CN CN202223413050.1U patent/CN219872532U/en active Active
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