CN110207854A - A kind of sensitivity in-situ check and test method for roads and tunnels heat detector - Google Patents
A kind of sensitivity in-situ check and test method for roads and tunnels heat detector Download PDFInfo
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- CN110207854A CN110207854A CN201910489787.5A CN201910489787A CN110207854A CN 110207854 A CN110207854 A CN 110207854A CN 201910489787 A CN201910489787 A CN 201910489787A CN 110207854 A CN110207854 A CN 110207854A
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- Prior art keywords
- roads
- heat detector
- tunnels
- sensitivity
- temperature
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
- G01K15/00—Testing or calibrating of thermometers
- G01K15/002—Calibrated temperature sources, temperature standards therefor
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
- G01K15/00—Testing or calibrating of thermometers
- G01K15/007—Testing
Abstract
The invention discloses a kind of sensitivity in-situ check and test methods for roads and tunnels heat detector, comprising the following steps: S1. drives thermal modules to rise using telescoping mechanism, is located at thermal modules near roads and tunnels heat detector to be measured；S2. by ground control equipment, control thermal modules provide heat to roads and tunnels heat detector to be measured；S3. by ground control equipment, the output temperature for controlling thermal modules is stepped up, is quickly heated to roads and tunnels heat detector to be measured；S4. the real time temperature of thermal modules output is obtained by temperature collecting module, and passes back to ground control equipment；S5. during heating, by ground control equipment, real time temperature is monitored, and according at each temperature, roads and tunnels heat detector to be measured whether alarm detection its sensitivity.The present invention has that safe and reliable, heating rate is fast, is influenced the advantages such as small by tunnel interior air-flow.
Description
Technical field
The present invention relates to roads and tunnels heat detectors, more particularly to a kind of spirit for roads and tunnels heat detector
Sensitivity in-situ check and test method.
Background technique
For the engineering site acceptance test of temperature sensitive type tunnel fire detection system, traditional detection method includes: simulation
The fire pot test method(s) of scene of fire applies simulated fire signal or plain type torch to fire detector and tests, by will be fiery
Close to fire detector triggering alarm.The specific implementation method of this kind of detection is direct simulated fire scene igniting at the scene,
Especially fire pot test method(s) generally requires road closure and is operated, and forbids the place operation using open fire in gas tunnel etc., for
Field Force's danger coefficient is high, should not operate repeatedly, and the scene of detection is difficult to control, and enforceability is not strong.
In order to substitute traditional fire pot test method, reinforces the operability and safety of test, nowadays also there is water bath with thermostatic control
The detection methods such as method, wherein thermostatic water-bath method needs to dismantle sensing element into independent test, departing from the typical case in tunnel
Environment, adaptability is not strong.
And the detection mode of the temperature sensitive type fire detector of indoor application is used, due to indoor environment and tunnel environment gap
Larger, the usual power of detecting instrument is smaller, influences vulnerable to tunnel longitudinal air flow, it is difficult to triggering alarm.
During atual detection, Major Difficulties are that longitudinal air flow flow velocity is throughout the year more than 1m/s, flow direction variation in tunnel
It is larger, maximum temperature and heating rate equal susceptible when detection.When longitudinal air flow flow velocity is greater than 1.5m/s, it is difficult to reach most
High-temperature；When longitudinal air flow flow velocity is greater than 3m/s, it is difficult to reach heating rate, traditional detection method is difficult to trigger alarm, also very
Difficulty is monitored detection process.
Summary of the invention
It is an object of the invention to overcome the deficiencies of the prior art and provide a kind of spirits for roads and tunnels heat detector
Sensitivity in-situ check and test method.
The purpose of the present invention is achieved through the following technical solutions: a kind of spirit for roads and tunnels heat detector
Sensitivity in-situ check and test method, comprising the following steps:
S1. it drives thermal modules to rise using telescoping mechanism, is located at thermal modules near roads and tunnels heat detector to be measured；
S2. by ground control equipment, control thermal modules provide heat to roads and tunnels heat detector to be measured；
S3. by ground control equipment, the output temperature for controlling thermal modules is stepped up, to roads and tunnels heat detector to be measured
Quickly heated；
S4. the real time temperature of thermal modules output is obtained by temperature collecting module, and passes back to ground control equipment；
S5. during heating, by ground control equipment, real time temperature is monitored, and according at each temperature, it is to be measured
Roads and tunnels heat detector whether alarm detection its sensitivity.
The beneficial effects of the present invention are: the present invention is directly by being located at the hot-die near roads and tunnels heat detector to be measured
Block heats roads and tunnels heat detector to be measured, carries out its sensitivity test to realize, has safe and reliable, heating speed
Degree is fast, is influenced the advantages such as small by tunnel interior air-flow.
Detailed description of the invention
Fig. 1 is flow chart of the method for the present invention；
Fig. 2 is the electronic schematic diagram in embodiment；
Fig. 3 is the structural schematic diagram of sensibility testing arrangement.
In figure, 1- telescopic rod, 2- ring flange, 3- cross bar, the first upright bar of 4-, 5- thermal modules, 6- temperature sensor, 7- is flexible
Bar fixed frame, the second upright bar of 8-, 9- camera.
Specific embodiment
Technical solution of the present invention is described in further detail with reference to the accompanying drawing, but protection scope of the present invention is not limited to
It is as described below.
As shown in Figure 1, a kind of sensitivity in-situ check and test method for roads and tunnels heat detector, it is characterised in that:
The following steps are included:
S1. it drives thermal modules to rise using telescoping mechanism, is located at thermal modules near roads and tunnels heat detector to be measured；
S2. by ground control equipment, control thermal modules provide heat to roads and tunnels heat detector to be measured；
S3. by ground control equipment, the output temperature for controlling thermal modules is stepped up, to roads and tunnels heat detector to be measured
Quickly heated；
S4. the real time temperature of thermal modules output is obtained by temperature collecting module, and passes back to ground control equipment；
S5. during heating, by ground control equipment, real time temperature is monitored, and according at each temperature, it is to be measured
Roads and tunnels heat detector whether alarm detection its sensitivity.
A kind of sensitivity in-situ check and test method for roads and tunnels heat detector further includes video monitoring step
It is rapid: in sensitivity test process, by the image information near image acquisition device roads and tunnels heat detector to be measured,
Pass back to ground control equipment to monitor in real time for staff.
Vcehicular tunnel is commonly optical fibre type linear temperature-sensitive detector at present, and by the principle of Raman scattering, (incident light exists
When passing through in optical fiber, the temperature as locating for optical fiber ontology is different and causes the fibre scattering rate at this different, and then influences light
The intensity for the scattering light that line transmitting terminal receives changes, to calculate temperature value) detection temperature change, to reach alarm
Function.Type of alarm: it will be installed alarm on the curb of usual every 50 meters of tunnels side and be connected with detector, thus by tunnel
It is divided into dozens of region, each regional temperature increases triggering alarm, and the alarm in the region can be by way of sound and light
It alarms, and can manually or remotely release；Sensitivity technique is carried out to heat detector, i.e., to the sky around heat detector
Gas is heated, or is directly heated to heat detector, after reaching corresponding temperature, checks the curb of tunnel side
Whether the alarm of upper installation alarms.
In embodiments herein, described image acquisition module includes camera, and the temperature collecting module includes temperature
Sensor is spent, the telescoping mechanism includes telescopic rod.System as shown in Figure 2 is constructed in this embodiment completes heat detector
Sensitivity on-site test, the system include sensibility testing arrangement and control monitoring device；
As shown in figure 3, the sensibility testing arrangement includes telescopic rod 1 and cross bar 3；The top of the telescopic rod 1 is provided with method
Blue disk 2, the cross bar 3 are fixed on the ring flange 2；The first upright bar 4 is fixed on the cross bar 3, in first upright bar 4
It is fixed with thermal modules 5；3 are further fixed on the second upright bar 8 on the cross bar, the top fixing camera 9 of second upright bar 8, and
The shooting direction of the camera is directed toward the thermal modules 5；It is further fixed in first upright bar 4 defeated for detecting thermal modules 5
The temperature sensor 6 of temperature out；The control monitoring device includes microprocessor, display screen and control panel, the micro process
Device is connected respectively at display screen, control panel, camera 9, temperature sensor 6 and thermal modules 5.In above-described embodiment, the spirit
Sensitivity test device further includes telescopic rod fixed frame 7, and the bottom end of the telescopic rod 1 is fixed on flexible across telescopic rod fixed frame 7
In bar fixed frame 7；The control monitoring device further includes power supply, battery main switch, and said supply unit is always opened with power supply
Connection connects, and the battery main switch is passed with microprocessor, display screen and control panel, camera 9, temperature respectively by power supply line
Sensor 6 and thermal modules 5 connect；
In some embodiments, the thermal modules 5 can be air-heater: the air outlet of air-heater is towards heat detector side to be measured
To being heated by cross-ventilated mode to heat detector；The temperature sensor 6 is located at the air outlet of air-heater
Place；Power switch button, air-heater gear adjusting knob and air-heater temperature adjustment knob are provided on the control panel；Institute
It states power switch button to connect with battery main switch, the air-heater gear adjusting knob and air-heater temperature adjustment knob difference
It is connect with microprocessor.When carrying out sensitivity test to roads and tunnels heat detector, the system of the embodiment is placed on
Below heat detector to be measured, hand control telescopic rod 1 drives the cross bar 3 on ring flange 2 to rise, so that air-heater is close to be measured
Then heat detector opens battery main switch by the power switch button on control panel, straight as heat source by air-heater
It connects to heat detector and heat progress sensitivity test is provided；And it is adjusted by the air-heater gear adjusting knob on control panel
Wind-speed gear adjusts air-heater leaving air temp by air-heater temperature adjustment knob, due to can directly be driven by telescopic rod 1
For heat source close to heat detector to be measured, therefore around heat detector, heating rate is fast, is influenced by tunnel interior air-flow small, and compares
It is tested in fire pot more safe and reliable；And it is provided with temperature sensor 6 and shooting direction at 5 air outlet of air-heater to refer to
To the camera 9 of the air-heater 5, the image of air outlet temperature and sensitivity test can be acquired, microprocessor is passed back to, by
Microprocessor shows air outlet temperature and the image of sensitivity test on a display screen, convenient for the work people of on-the-spot test
Member is monitored.
In further embodiments, the thermal modules can also make heat radiation tube, the temperature sensor 6 and heat radiation tube
It contacts, is provided with power switch button and heat radiation tube temperature adjustment knob on the control panel；The power switch button
It is connect with battery main switch, the heat radiation tube temperature adjustment knob is connect with microprocessor.To roads and tunnels heat detection
When device carries out sensitivity test, the system of the embodiment is placed below heat detector to be measured, hand 1 band of control telescopic rod
Cross bar 3 on dynamic ring flange 2 rises, so that heat radiation tube is contacted close to heat detector to be measured and with heat detector to be measured,
Then battery main switch is opened by the power switch button on control panel, is directly visited to temperature-sensitive from heat radiation tube as heat source
It surveys device and heat progress sensitivity test is provided；And heat radiation tube is adjusted by the heat radiation tube temperature adjustment knob on control panel
Output temperature, due to can directly by telescopic rod 1 drive heat source contact close to heat detector to be measured and with detector, therefore
Heat detector heating rate is fast, is not influenced by tunnel interior air-flow, and more safe and reliable compared to fire pot experiment；And it is arranged
There are the temperature sensor contacted with heat radiation tube 6 and shooting direction to be directed toward the camera 9 of the heat radiation tube, therefore can acquire out
The image of output temperature and sensitivity test, passes back to microprocessor, by microprocessor by output temperature and sensitivity test
Image is shown on a display screen, is monitored convenient for the staff of on-the-spot test.
To sum up, the present invention is directly by being located at the thermal modules near roads and tunnels heat detector to be measured to road tunnel to be measured
Road heat detector is heated, and carries out its sensitivity test to realize, has that safe and reliable, heating rate is fast, by tunnel
The advantages such as airflow influence is small.
It should be noted that those of ordinary skill in the art will understand that the embodiments described herein is to help
Reader is helped to understand implementation method of the invention, it should be understood that protection scope of the present invention is not limited to such special statement
And embodiment.Those skilled in the art disclosed the technical disclosures can make various do not depart from originally according to the present invention
Various other specific variations and combinations of essence are invented, these variations and combinations are still within the scope of the present invention.
Claims (6)
1. a kind of sensitivity in-situ check and test method for roads and tunnels heat detector, it is characterised in that: the following steps are included:
S1. it drives thermal modules to rise using telescoping mechanism, is located at thermal modules near roads and tunnels heat detector to be measured；
S2. by ground control equipment, control thermal modules provide heat to roads and tunnels heat detector to be measured；
S3. by ground control equipment, the output temperature for controlling thermal modules is stepped up, to roads and tunnels heat detector to be measured
Quickly heated；
S4. the real time temperature of thermal modules output is obtained by temperature collecting module, and passes back to ground control equipment；
S5. during heating, by ground control equipment, real time temperature is monitored, and according at each temperature, it is to be measured
Roads and tunnels heat detector whether alarm detection its sensitivity.
2. a kind of sensitivity in-situ check and test method for roads and tunnels heat detector according to claim 1, special
Sign is: further including video monitoring step: in sensitivity test process, passing through image acquisition device roads and tunnels sense to be measured
Image information near warm detector passes back to ground control equipment and monitors in real time for staff.
3. a kind of sensitivity in-situ check and test method for roads and tunnels heat detector according to claim 1, special
Sign is: the thermal modules are air-heater or heat radiation tube.
4. a kind of sensitivity in-situ check and test method for roads and tunnels heat detector according to claim 1, special
Sign is: described image acquisition module includes camera.
5. a kind of sensitivity in-situ check and test method for roads and tunnels heat detector according to claim 1, special
Sign is: the temperature collecting module includes temperature sensor.
6. a kind of sensitivity in-situ check and test method for roads and tunnels heat detector according to claim 1, special
Sign is: the telescoping mechanism includes telescopic rod.
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| CN201910489787.5A CN110207854A (en) | 2019-06-06 | 2019-06-06 | A kind of sensitivity in-situ check and test method for roads and tunnels heat detector |
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| CN201910489787.5A CN110207854A (en) | 2019-06-06 | 2019-06-06 | A kind of sensitivity in-situ check and test method for roads and tunnels heat detector |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112097942A (en) * | 2020-08-28 | 2020-12-18 | 清华大学 | Method and device for measuring temperature rise of electromagnetic valve head |
| CN113793468A (en) * | 2021-09-15 | 2021-12-14 | 招商局重庆公路工程检测中心有限公司 | Detection device and method for temperature sensing optical fiber of tunnel fire alarm system |
| CN114495407A (en) * | 2022-02-10 | 2022-05-13 | 广东省建设工程质量安全检测总站有限公司 | Trigger temperature detection device of portable linear cable type temperature-sensing fire detector |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112097942A (en) * | 2020-08-28 | 2020-12-18 | 清华大学 | Method and device for measuring temperature rise of electromagnetic valve head |
| CN112097942B (en) * | 2020-08-28 | 2022-07-05 | 清华大学 | Method and device for measuring temperature rise of electromagnetic valve head |
| CN113793468A (en) * | 2021-09-15 | 2021-12-14 | 招商局重庆公路工程检测中心有限公司 | Detection device and method for temperature sensing optical fiber of tunnel fire alarm system |
| CN114495407A (en) * | 2022-02-10 | 2022-05-13 | 广东省建设工程质量安全检测总站有限公司 | Trigger temperature detection device of portable linear cable type temperature-sensing fire detector |
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Application publication date: 20190906 |
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