CN203909971U - Tunnel fire alarm system based on three-wavelength infrared flame detector - Google Patents
Tunnel fire alarm system based on three-wavelength infrared flame detector Download PDFInfo
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- CN203909971U CN203909971U CN201420321860.0U CN201420321860U CN203909971U CN 203909971 U CN203909971 U CN 203909971U CN 201420321860 U CN201420321860 U CN 201420321860U CN 203909971 U CN203909971 U CN 203909971U
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- infrared flame
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Abstract
The utility model discloses a tunnel fire alarm system based on a three-wavelength infrared flame detector. The system comprises a monitoring center, a first alarm controller, a signal transmission device and terminal devices. A fire alarm computer of the monitoring center is communicated and connected with the fire alarm controller via a gateway. The terminal devices are arranged in every interval of preset distance along a tunnel direction. Each terminal device comprises the three-wavelength infrared flame detector and a comprehensive panel which are separately installed on the side wall of a tunnel. The comprehensive panel is internally provided with a manual alarm button and a fire alarm module. The three-wavelength infrared flame detector is arranged above the comprehensive panel and connected with the fire alarm module in the comprehensive panel via a cable. A signal in the comprehensive panel is uploaded to the fire alarm controller via the signal transmission device. The three-wavelength infrared flame detector is adopted so that reliability is high and rate of false alarm is low. The three-wavelength infrared flame detector and the comprehensive panel are separated so that the visual angle of the flame detector is ensured not to be blocked, leakage alarm does not occur and artificial alarm is facilitated.
Description
Technical field
The utility model relates to tunnel Fire-alarming System, relates in particular to a kind of tunnel Fire-alarming System based on three-wavelength infrared flame detector.
Background technology
Flame detecting fire alarm system in tunnel is generally to use Double-wavelength infrared flame detector at present, and an infrared sensor is surveyed flame, and wavelength is 4.3 μ m; As a reference, wavelength is 3.8 μ m or 5.0 μ m to another infrared sensor, detects high temperature interference source or low temperature interference source.Reference wavelength only has one, cannot comprehensively detect high temperature and low temperature interference source, and detector rate of false alarm is higher.
Tunnel Flame detector and manual pull station are generally all arranged on combination order panel, because need being arranged on apart from ground 1.5m left and right, manual pull station is easy to the height that people presses, cause flame detector setting height(from bottom) too low, easily by artificial destruction, and exist and survey visual angle and blocked and occur the risk failed to report by oversize vehicle.
Equipment in tunnel Fire-alarming System generally uses the communications cable to connect, and loop maximum distance is no more than 2km, in long tunnel, must increase fire alarm control unit quantity or communication relays is installed, and system is complexity and relaying poor effect comparatively.
Utility model content
The technical problems to be solved in the utility model is to be easily blocked and to occur failing to report for the installation site of tunnel Flame detector in prior art, and while measurement, reference wavelength only has one, cannot comprehensively detect high temperature and low temperature interference source, the defect that detector rate of false alarm is higher, provides a kind of tunnel Fire-alarming System based on three-wavelength infrared flame detector.
The utility model solves the technical scheme that its technical matters adopts:
A kind of tunnel Fire-alarming System based on three-wavelength infrared flame detector is provided, this system comprises Surveillance center, fire alarm control unit, signal transmission apparatus and terminal device, and wherein the fire alarm computing machine of Surveillance center is by gateway and fire alarm control unit communication connection;
Along tunnel direction, be provided with terminal device every predeterminable range, this terminal device comprises the three-wavelength infrared flame detector and the combination order that are arranged on separately tunnel-side, is provided with manual pull station and fire alarm module in combination order; Three-wavelength infrared flame detector is placed in combination order top, is connected with the fire alarm module in combination order by cable;
Signal in combination order is uploaded to fire alarm control unit by signal transmission apparatus.
In system described in the utility model, described signal transmission apparatus comprises the first photoelectric conversion module, optical fiber and the second photoelectric conversion module, manual pull station in combination order is connected with the first photoelectric conversion module by communication bus with fire alarm module, convert the electrical signal to light signal, again by optical fiber by optical signal transmission to the second photoelectric conversion module, light signal is reduced into electric signal, is uploaded to fire alarm control unit.
In system described in the utility model, in described combination order, be also provided with pilot lamp.
In system described in the utility model, described pilot lamp comprises alarm lamp, power light and malfunction indicator lamp.
In system described in the utility model, described three-wavelength infrared flame detector is arranged on tunnel-side apart from floor level 2.7-3.5m; Combination order is arranged on height in tunnel-side, and manual pull station base is 1.3-1.5m apart from floor level.
In system described in the utility model, described predeterminable range is 50m.
In system described in the utility model, three-wavelength infrared flame detector is fixed on tunnel-side by mounting bracket, and the jib-length of mounting bracket and level angle are all adjustable.
The beneficial effect that the utility model produces is: the utility model adopts three-wavelength infrared flame detector, reliability is high, rate of false alarm is low, only real flame is produced to alerting signal, can effectively avoid the impact of daylight, car bulb, houselights, high temperature heat source etc.Three-wavelength infrared flame detector separates with combination order, and three-wavelength infrared flame detector is installed on combination order top, can ensure that flame detector is not by artificial destruction, and can prevent from being stopped detection visual angle and extending the response time by oversize vehicle, even fails to report.Manual pull station is arranged on below, is easy to artificial warning.
Brief description of the drawings
Below in conjunction with drawings and Examples, the utility model is described in further detail, in accompanying drawing:
Fig. 1 is three-wavelength infrared flame detector tunnel Fire-alarming System composition diagram of the present utility model;
Fig. 2 is combination order of the present utility model and three-wavelength infrared flame detector connection diagram.
Number in the figure explanation
1-three-wavelength infrared flame detector, 2-combination order
3-cable, 4-flame detector mounting bracket
5-alarm lamp, 6-power light
7-malfunction indicator lamp, 8-manual pull station.
Embodiment
In order to make the purpose of this utility model, technical scheme and advantage clearer, below in conjunction with drawings and Examples, the utility model is further elaborated.Should be appreciated that specific embodiment described herein is only in order to explain the utility model, and be not used in restriction the utility model.
As shown in Figure 1, during the utility model is implemented, tunnel Fire-alarming System based on three-wavelength infrared flame detector comprises Surveillance center, fire alarm control unit, signal transmission apparatus and terminal device, and wherein the fire alarm computing machine of Surveillance center is by gateway and fire alarm control unit communication connection; Fire alarm control unit carries out protocol conversion by gateway, with the data interaction of fire alarm computer realization and the Long-distance Control of network mode and Surveillance center.
Along tunnel direction, be provided with terminal device every predeterminable range, this terminal device comprises the three-wavelength infrared flame detector and the combination order that are arranged on separately tunnel-side, is provided with manual pull station and fire alarm module in combination order; Three-wavelength infrared flame detector is placed in combination order top, is connected with the fire alarm module in combination order by cable.Signal in combination order is uploaded to fire alarm control unit by signal transmission apparatus.
Three-wavelength infrared flame detector is the flame detector that current stability is the highest, cost performance is optimum.Its reliability is high, rate of false alarm is low, can effectively avoid the interference of daylight, car bulb, houselights, high temperature heat source etc.; Highly sensitive, detection range is far away, can within the 30s time, respond the flame situation outside 30m; Shell adopts Seal Design, and degree of protection is high, dustproof and waterproof.Therefore, three-wavelength infrared flame detector is applicable to being applied in tunnel Fire-alarming System very much.Combination order also adopts waterproofing design, and the high humidity environment in tunnel even directly water rinses the normal operation that all can not affect fire alarm system.
In tunnel, needing 24V direct current fire-fighting power supply is three-wavelength flame detector and combination order power supply, can a 24V direct current fire-fighting power supply be installed every 1km.
As shown in Figure 2, in the utility model embodiment, three-wavelength infrared flame detector 1 separates and is installed on tunnel-side with combination order 2, between connect with cable 3.
Three-wavelength infrared flame detector 1 is fixed on tunnel-side by mounting bracket 4, mounting bracket 4 can change jib-length and level angle flexibly, flame detector is fixed on to most suitable detecting location, generally flame detector is arranged on to tunnel-side apart from floor level 2.7 ~ 3.5m.
Fire alarm module is installed in combination order casing, receives flame detector signal.
On combination order panel, pilot lamp can be installed, pilot lamp can be divided into 7 three kinds of alarm lamp 5, power light 6 and malfunction indicator lamp.Alarm lamp 5 is red, and power light 6 is green, and malfunction indicator lamp 7 is yellow.
Manual pull station 8 is also installed on combination order panel.Combination order is arranged on tunnel-side, ensures that the height on manual pull station base is 1.3 ~ 1.5m.
The detection range of three-wavelength infrared flame detector is 60m, all covers for realizing tunnel, and in an embodiment of the present utility model, every 50m installs a three-wavelength flame detector and a combination order.In combination order, be provided with manual pull station, fire alarm module and pilot lamp.The fire alarm signal of three-wavelength infrared flame detector output is relay dry contact signal, is uploaded to the fire alarm module in combination order.
Signal transmission apparatus comprises the first photoelectric conversion module, optical fiber and the second photoelectric conversion module, manual pull station in combination order is connected with the first photoelectric conversion module by communication bus with fire alarm module, convert the electrical signal to light signal, again by optical fiber by optical signal transmission to the second photoelectric conversion module, light signal is reduced into electric signal, be uploaded to fire alarm control unit, every a pair of photoelectric conversion module is responsible for the signal transmission of 2km with interior terminal device.Utilize photoelectric conversion module and Optical Fiber Transmission, can avoid the decay of electric signal cable transmission, break through the limitation of communication loop length, can make a controller cover farthest 20km tunnel, reduce system complexity, improve the utilization factor of fire alarm control unit, reduce costs largely.
The utlity model has following superior effect:
1) three-wavelength infrared flame detector reliability is high, rate of false alarm is low, only real flame is produced to alerting signal, can effectively avoid the impact of daylight, car bulb, houselights, high temperature heat source etc.;
2) three-wavelength infrared flame detector separates with combination order, can ensure that manual pull station is arranged on the position apart from floor level 1.3 ~ 1.5m, is easy to artificial warning; Flame detector is arranged on the position apart from floor level 2.7m ~ 3.5m, avoids artificial destruction, prevents from being stopped detection visual angle and extending the response time by oversize vehicle, even fails to report.
3) three-wavelength infrared flame detector and combination order all adopt waterproofing design, and the high humidity environment in tunnel even directly water rinses the normal operation that all can not affect fire alarm system;
4) use photoelectric conversion module, convert the electrical signal to light signal, by optical fiber transmitting, fire alarm control unit is the longest can cover 20km tunnel, reduces system complexity, improves the utilization factor of fire alarm control unit, reduces costs largely.
Should be understood that, for those of ordinary skills, can be improved according to the above description or convert, and all these improvement and conversion all should belong to the protection domain of the utility model claims.
Claims (7)
1. the tunnel Fire-alarming System based on three-wavelength infrared flame detector, it is characterized in that, this system comprises Surveillance center, fire alarm control unit, signal transmission apparatus and terminal device, and wherein the fire alarm computing machine of Surveillance center is by gateway and fire alarm control unit communication connection;
Along tunnel direction, be provided with terminal device every predeterminable range, this terminal device comprises the three-wavelength infrared flame detector and the combination order that are arranged on separately tunnel-side, is provided with manual pull station and fire alarm module in combination order; Three-wavelength infrared flame detector is placed in combination order top, is connected with the fire alarm module in combination order by cable;
Signal in combination order is uploaded to fire alarm control unit by signal transmission apparatus.
2. system according to claim 1, it is characterized in that, described signal transmission apparatus comprises the first photoelectric conversion module, optical fiber and the second photoelectric conversion module, manual pull station in combination order is connected with the first photoelectric conversion module by communication bus with fire alarm module, convert the electrical signal to light signal, again by optical fiber by optical signal transmission to the second photoelectric conversion module, light signal is reduced into electric signal, be uploaded to fire alarm control unit.
3. system according to claim 1, is characterized in that, is also provided with pilot lamp in described combination order.
4. system according to claim 3, is characterized in that, described pilot lamp comprises alarm lamp, power light and malfunction indicator lamp.
5. system according to claim 1, is characterized in that, described three-wavelength infrared flame detector is arranged on tunnel-side apart from floor level 2.7-3.5m; Combination order is arranged on tunnel-side, and manual pull station base is 1.3-1.5m apart from floor level.
6. system according to claim 1, is characterized in that, described predeterminable range is 50m.
7. system according to claim 1, is characterized in that, three-wavelength infrared flame detector is fixed on tunnel-side by mounting bracket, and the jib-length of mounting bracket and level angle are all adjustable.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420321860.0U CN203909971U (en) | 2014-06-17 | 2014-06-17 | Tunnel fire alarm system based on three-wavelength infrared flame detector |
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| CN201420321860.0U CN203909971U (en) | 2014-06-17 | 2014-06-17 | Tunnel fire alarm system based on three-wavelength infrared flame detector |
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| CN203909971U true CN203909971U (en) | 2014-10-29 |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105354974A (en) * | 2015-11-30 | 2016-02-24 | 无锡拓能自动化科技有限公司 | Flame detection method based on three-wavelength infrared flame detector |
| CN105513261A (en) * | 2015-11-30 | 2016-04-20 | 无锡拓能自动化科技有限公司 | Three-wavelength infrared flame detector |
| CN108144240A (en) * | 2018-02-08 | 2018-06-12 | 海宁欧康电子科技有限公司 | A kind of spark detection and quenching control device with dust and moisture effect |
| CN110533873A (en) * | 2019-08-14 | 2019-12-03 | 吴飞宇 | For the flame detection method of fire mobile in tunnel |
| CN111692979A (en) * | 2020-06-17 | 2020-09-22 | 中交一公局厦门工程有限公司 | System and method for detecting height of tunnel secondary lining cloth based on thermal imaging |
| CN113313903A (en) * | 2021-04-06 | 2021-08-27 | 中国船舶重工集团公司第七0三研究所 | Multi-parameter data fusion fire judgment method |
| CN113409535A (en) * | 2021-04-29 | 2021-09-17 | 辛米尔视觉科技(上海)有限公司 | Tunnel flame detection system based on computer vision and artificial intelligence algorithm |
-
2014
- 2014-06-17 CN CN201420321860.0U patent/CN203909971U/en active Active
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105354974A (en) * | 2015-11-30 | 2016-02-24 | 无锡拓能自动化科技有限公司 | Flame detection method based on three-wavelength infrared flame detector |
| CN105513261A (en) * | 2015-11-30 | 2016-04-20 | 无锡拓能自动化科技有限公司 | Three-wavelength infrared flame detector |
| CN108144240A (en) * | 2018-02-08 | 2018-06-12 | 海宁欧康电子科技有限公司 | A kind of spark detection and quenching control device with dust and moisture effect |
| CN110533873A (en) * | 2019-08-14 | 2019-12-03 | 吴飞宇 | For the flame detection method of fire mobile in tunnel |
| CN111692979A (en) * | 2020-06-17 | 2020-09-22 | 中交一公局厦门工程有限公司 | System and method for detecting height of tunnel secondary lining cloth based on thermal imaging |
| CN113313903A (en) * | 2021-04-06 | 2021-08-27 | 中国船舶重工集团公司第七0三研究所 | Multi-parameter data fusion fire judgment method |
| CN113409535A (en) * | 2021-04-29 | 2021-09-17 | 辛米尔视觉科技(上海)有限公司 | Tunnel flame detection system based on computer vision and artificial intelligence algorithm |
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