CN206833692U - Evaluate and test the experimental rig of the anti-dust glitch performance of smoke detector - Google Patents
Evaluate and test the experimental rig of the anti-dust glitch performance of smoke detector Download PDFInfo
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- CN206833692U CN206833692U CN201720506436.7U CN201720506436U CN206833692U CN 206833692 U CN206833692 U CN 206833692U CN 201720506436 U CN201720506436 U CN 201720506436U CN 206833692 U CN206833692 U CN 206833692U
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Abstract
The utility model provides one kind by experiment casing, the experimental rig for the evaluation and test anti-dust glitch performance of smoke detector that dust generator and test parameters supervising device are formed, two smoke detectors can be fixed on fixed disk in experiment casing, include top mix dust area and bottom dust settling area in experiment casing, experiment casing side wall corresponding to the top mix dust area, which is provided with, mends dirt mouth, the dust generator is connected with the benefit dirt mouth, the experiment casing bottom is connected with circulating pump, the circulating pump is connected to dust transfer passage and dust emission passage, the drifting dust mouth of the dust transfer passage is located in the top mix dust area, the dust emission passage is connected with the dust-exhausting port of the experiment casing.The utility model experimental rig is accurately controlled dust concentration and increased under smaller concentration with given pace, tests the response condition of smoke detector, assesses the ability of the anti-dust glitch of smoke detector.
Description
Technical field：
Smoke detector performance detection is the utility model is related to, it is particularly a kind of to be used to evaluate and test smoke detector anti-dust wink
The experimental rig of state jamming performance.
Background technology：
Because smoke detector uses light scattering principle more, in the presence of air-flow, dust enters the detection cavity of detector
It is interior, light scattering signal can be produced, causes detector simulation value to raise in a short time and produce false alarm, therefore is hanged in air
Floating dust is the main reason for triggering smoke detector false alarm.Fire safety science international association (IAFSS), American National
The portion that standard technique research institute (NIST) and fire fire-fighting IEEE of the U.S. (SFPE) make, which is assessed, to be pointed out, room,
Between 67% to 86%, also very big space needs for commercial building, the smoke detector system reliability of public organizations
Lifting.
For the detector of different brands because its identification algorithm and detection cavity configuration are different, it resists the short time of dust
Glitch performance is different.And in practical engineering application, the dust concentration of different places has larger difference, such as common
Residential houses particulate in air content is relatively low, and the place such as semi-enclosed venue, tunnel then can be relatively higher, and out of doors,
Industrial site and environmental disturbances may then have higher dust concentration than more serious place.Therefore, smoke detector should
According to its anti-dust glitch ability, applied to specific Environment space.But at present, still lacking both at home and abroad being capable of quantitative assessment
The experimental rig and method of the anti-dust glitch performance of smoke detector.
GB/T2423.37-2006/IEC60068-2-68:1994《Electric and electronic product environmental test》Electrotechnical, electronic is produced
Product define different " sand and dust test " methods, and primary evaluation sand and dust influence on the generality of electric and electronic product, such as sand and dust
Cause blocking of stuck contact fault, motion bearings, surface abrasion and air vent or filter etc..These test methods for
It is inappropriate to test wrong report caused by fire detector is disturbed due to dust or operating point drift, therefore in detection report
Alert field is never tested fire detector using these test methods.In addition, GB/T2423.37-2006/
IEC60068-2-68:1994《Electric and electronic product environmental test》Specified in sand dust test chamber can not control dust concentration
It is stable, therefore cannot be used for carrying out quantitative smoke detector dust pollution experiment.
U.S. UL standards UL268-2006《Smoke detectors for fire alarm signaling system》
(smoke fire detector) and UL217-2015《Standard for safety smoke alarms》(smoke alarm safety
Standard) in define fire detector dust test method, the purpose of this method is test fire detector in big concentration dust
Whether normal work is remained to after pollution.But experimental rig can not realize the quantitative control of internal dust concentration in the experiment, can not
Carry out the quantitative assessment of the anti-dust glitch performance of smoke detector.
Utility model content：
The problem of existing for prior art, the purpose of this utility model are that providing one kind is used to evaluate and test smoke detector
The experimental rig of anti-dust glitch performance, the anti-dust glitch performance for correct evaluation smoke detector provide science
Foundation.
To achieve the above object, the experiment of the evaluation and test anti-dust glitch performance of smoke detector provided by the utility model
Device, including experiment casing, dust generator and test parameters supervising device, the roof inner side of the experiment casing, which is provided with, to be visited
Survey device fixed disk, the test parameters supervising device include airspeedometer on the detector fixed disk, Hygrothermograph and
Optics kapnometer in the experiment casing, two are symmetrically arranged with its axle center on the detector fixed disk
Detector base；Include top mix dust area and bottom dust settling area, the top mix dust in the experiment casing
Experiment casing side wall corresponding to area, which is provided with, mends dirt mouth, and heater, the experiment casing bottom are provided with the bottom dust settling area
Portion is connected with circulating pump, and the circulating pump is connected to dust transfer passage and dust emission passage, and the dust conveying is logical
The drifting dust mouth in road is located in the top mix dust area, and the dust emission passage and the dust-exhausting port of the experiment casing connect
Connect, which is provided with electrically operated valve；The dust generation that the dust generator includes air compressor, is connected with air compressor
Device, the dust generator are connected by pipeline with the benefit dirt mouth.
The experiment casing also includes switch board, and the switch board controls the circulating pump, heater, described electronic
The control panel of the startup and closing of valve, the airspeedometer and the Hygrothermograph and the switch board is linked by serial ports.
The dust generator, which is provided with, to be used to control the knob for adding dirt speed, and the dust generator adds dirt speed model
Enclose for 0.3~50mg/s.
The vertical range of experiment casing side wall where the drifting dust mouth to the benefit dirt mouth is equal to the drifting dust mouth to institute
State the vertical range of experiment casing roof.
The airflow direction of straight line where two detector bases perpendicular to the drifting dust mouth.
The dust optical concentration m value measurement ranges of the optics kapnometer are at least 0-2dB/m, and measurement accuracy is
0.01dB/m。
Dust concentration scope in the experiment casing is (1mg/m3-500mg/m3) ± 10%
As shown from the above technical solution, the beneficial effects of the utility model：
When being tested using experimental rig of the present utility model, dust concentration is accurately controlled under smaller concentration with one
Constant speed rate increases, and simulates space dust and produce the change similar to fire hazard aerosol fog, tests the response condition of smoke detector, comments
The ability of the anti-dust glitch of smoke detector is estimated, so as to the Environment space for being adapted to use for determination smoke fire detector
Foundation is provided.
Brief description of the drawings：
Fig. 1 is the experimental rig for the evaluation and test anti-dust glitch performance of smoke detector that the utility model embodiment provides
Structural representation；
Fig. 2 is the structural representation of detector fixed disk in Fig. 1；
In the present embodiment：1- experiment casings, 2- detector fixed disks, 3- optics kapnometers, 4- Hygrothermographs, 5- wind speed
Meter, 6- drifting dust mouths, 7- mend dirt mouth, 8- dust generators, 9- air compressors, 10- circulating pumps, 11- heaters, 12- motor-driven valves
Door, 13- dust-exhausting ports, 14- switch boards, 15- detector bases, 16- controls and display device junction, 17- airflow directions, 18-
Dust transfer passage, 19- dust emission passages.
Embodiment：
With reference to the accompanying drawings and examples, the utility model is described in further detail.Following examples are used to illustrate
The utility model, but it is not limited to the scope of the utility model.
As shown in figure 1, the utility model provides a kind of experiment dress for evaluating and testing the anti-dust glitch performance of smoke detector
Put, including experiment casing 1, dust generator and test parameters supervising device.The experiment casing 1 includes upper and lower two parts,
Upper part is the cube shaped of 1000mm × 1000mm × 1000mm, and its inner space is top mix dust area, and lower part is
The base length of side is 1000mm, and a height of 1000mm square cone shape, its inner space is bottom dust settling area.The top
The left side wall of experiment casing 1 corresponding to mix dust area, which is provided with, mends dirt mouth 7, described to mend dirt mouth 7 and the top mix dust area
The vertical range of bottom surface is 100mm.The leading flank of the experiment casing is door that can be manually opened.
Heater 11 is provided with the bottom dust settling area, the inside of experiment casing 1 can be heated, range up to 50
DEG C, and play a part of drying, make in experiment casing 1 humiture within the specific limits；The bottom of experiment casing 1 is connected with
Circulating pump 10, the circulating pump 10 are connected to dust transfer passage 18 and dust emission passage 19, and the dust conveying is logical
The drifting dust mouth 6 in road 18 is located in the top mix dust area, the dust emission passage 19 and the dust discharge of the experiment casing 1
Mouth 13 connects, and which is provided with electrically operated valve 12；The sample box 1 also includes switch board 14, and the switch board 14 controls described
The startup and closing of circulating pump 10, the heater 11 and the electrically operated valve 12.
The dust generator includes air compressor 9 and dust generator 8, powder caused by the dust generator 8
Dirt is entered in experiment casing 1 by the benefit dirt mouth 7.The dust generator 8 is connected by serial ports with computer, can be led to
The startup of the programme-control dust generator 8 crossed in computer is closed, and can control dust generator plus dirt speed, the powder
Dirt generator adds dirt speed range to be 0.3~50mg/s.
The test parameters supervising device includes optics kapnometer 3, airspeedometer 5, Hygrothermograph 4, the experiment casing 1
Roof on the inside of be provided with a diameter of 240mm detector fixed disk 2, as shown in Fig. 2 the airspeedometer 5 and the Hygrothermograph 4
It is installed on the detector fixed disk 2, the optics kapnometer 3 is fixed in the experiment casing 1 and positioned at described
Top mix dust area, on the detector fixed disk 2 on its axle center before and after be symmetrically arranged with two detector bases 15
For fixing smoke detector, the vertical range of the left side wall of experiment casing 1 where the drifting dust mouth 6 to the benefit dirt mouth 7 etc.
The vertical range of the roof of experiment casing 1 is arrived in the drifting dust mouth 6, is 200mm；And where two detector bases 15
Straight line perpendicular to the airflow direction of the drifting dust mouth 6, therefore the air-flow that two smoke detectors are subject to is uniform, dust concentration
It is basically identical.The control panel of the airspeedometer 5 and the Hygrothermograph 4 and the switch board 14 is linked by serial ports, therefore,
Temperature, humidity and wind speed in experiment casing 1 can real-time displays on the control panel；The optics kapnometer 3 passes through serial ports
It is connected with computer, for gathering the dust optical concentration data in experiment casing 1 near the detector fixed disk 2, and
By Real time vision, the dust optical concentration m value measurement ranges of the optics kapnometer 3 are at least up to 0~2dB/
M, precision 0.01dB/m, computer is the data fed back according to optics kapnometer 3, come adjust dust generator 8 plus dirt
Speed and then regulation and the dust concentration in Control experiment casing 1.
During experiment, compressed air caused by the air compressor 9 flows through the dust generator 8, and dust leads to
Cross the benefit dirt mouth 7 to enter in experiment casing 1, the circulating pump 10 can control experiment casing 1 to be internally formed the gas of stable circulation
Stream, reference picture 1, can blow out the dust for being partly deposited to the bottom dust settling area so that powder from the drifting dust mouth 6 again
Dirt forms peripheral passage, and further, the dust generator 8, which is provided with, is used for the knob that control adds dirt speed, described in regulation
Knob can carry out micro benefit dirt during dust circulation, and this closed-loop control can realize that dust concentration exists in the experiment casing 1
(1mg/m3-500mg/m3) ± 10% controllable.The watt level of the circulating pump 10 can adjust, and its power bracket should cause described
Air velocity near detector fixed disk 2 is adjustable in the range of 0~2m/s, and adjustable accuracy should reach 0.05m/s.The experiment
Standard atmospheric pressure is remained in casing 1.
When carrying out the evaluation and test of the anti-dust glitch performance of smoke detector using above-mentioned experimental rig, in order that sense cigarette is visited
Device is surveyed according to its anti-dust glitch ability, applied to specific Environment space, smoke as shown in table 1 is now provided and visits
The anti-dust glitch ability rating standard of device is surveyed, the anti-dust interference ability of smoke detector is judged according to table 1 and fits
In the place used.
The anti-dust glitch capacity sizing of the point-type smoke detection of table 1
The key parameter basis of design being related in table 1：
The dust optical concentration m values and light extinction rate data of same grade can convert mutually, and correspond.
M values 0.5dB/m is with reference to the standard GB/T 4715-1993 cancelled《Spot-type smoke detector technology will
Ask and test method》The one-level sensitivity requirement of medium sensitivity division.Detector applied to general place is arranged on highest spirit
The dust concentration for the glitch that when worst (anti-dust glitch ability) can be resisted is general place and environment during sensitivity
The classification foundation than more serious place is disturbed, i.e., detector is not alarmed when dust concentration reaches the parameter, and the anti-dust of detector is done
It is most strong to disturb ability, meets I grade of requirement, detector can be applied to environmental disturbances than more serious place.
Light extinction rate 2%/m is standard GB/T 15631-2008《Extraordinary fire detector》The response lag of middle air suction type point
Sensitive and common value parameter in class method, response lag is common more than 2%/m type photodetectors.I.e. glitch is tested
When, detector is not alarmed when dust concentration reaches the parameter, then detector has certain anti-dust interference ability, meets II grade
It is required that it can be applied to general place.
Standard GB/T 15631-2008《Extraordinary fire detector》It is sensitive in the response lag sorting technique of middle air suction type
With highly sensitive value parameter：Response lag is more than 0.8%/m and is less than or equal to 2%/m to be sensitive, then when glitch is tested, powder
Detector is not alarmed when dust concentration reaches 0.8%/m, then detector anti-dust interference ability is poor, is met III grade of requirement, can be answered
For clean place；Response lag is less than 0.8%/m to be highly sensitive, and detector dust concentration when glitch is tested reaches
Alarmed before 0.8%/m, detector does not have anti-dust interference ability, meets IV grade of requirement, is adapted to be used in dustless place.
Embodiment 1：
Certain model smoke fire detector will be installed in tunnel, and the model detector needs to carry out I and II grade dust
Glitch is tested.Using the experimental rig of the anti-dust glitch performance of above-mentioned evaluation and test smoke detector, to the model sense cigarette
Fire detector anti-dust interference ability carries out experiment evaluation and test：
(1) experimental condition is set：It is less than 0.01dB/m including the initial concentration of dust in experiment casing；Temperature is 23 ± 5
℃；Relative humidity is ＜ 25%；Smoke detector surrounding flow flow velocity is 0.5 ± 0.1m/s；
(2) 2 model smoke fire detectors are chosen, its response lag sets identical；By the described 2 model sense cigarettes
Fire detector is arranged on the detector fixed disk in experiment casing, is connected to fire alarm control unit by bus, is made it
In normal monitoring state and stable operation 15min；
(3) start heater and circulating pump, make chamber body temperature, relative humidity and smoke detector surrounding flow stream
Speed reaches experimental condition requirement；Start air compressor and dust generator, the speed for being passed through dust meet 0.19dBm-1min-1
≤△m/△t≤0.418dBm-1min-1(refer to standard GB/T 4715-2005《Spot-type smoke detector》Annex H is tried
Fire sighting SH2- cotton cord hidden combustion fires figure is H.3), when m values reach 0.5dB/m, the described 2 model smoke fire detectors are not sent out
Go out fire alarm signal；
(4) conclusion is judged：The model detector meets I grade of requirement, has stronger anti-dust interference ability, is adapted to use
In environmental disturbances than more serious place (including tunnel place).
Embodiment 2：
Certain model smoke fire detector will be installed in certain hotel's evacu-ation walk, elevator cup, room, model detection
Device needs to carry out the experiment of I and II grade dust glitch.Utilize the anti-dust glitch performance of above-mentioned evaluation and test smoke detector
Experimental rig, experiment evaluation and test is carried out to the model smoke fire detector anti-dust interference ability：
(1) experimental condition is set：It is less than 0.01dB/m including the initial concentration of dust in experiment casing；Temperature is 23 ± 5
℃；Relative humidity is ＜ 25%；Smoke detector surrounding flow flow velocity is 0.5 ± 0.1m/s；
(2) 2 model smoke fire detectors are chosen, its response lag sets identical；By the described 2 model sense cigarettes
Fire detector is arranged on the detector fixed disk in experiment casing, is connected to fire alarm control unit by bus, is made it
In normal monitoring state and stable operation 15min；
(3) start heater and circulating pump, make chamber body temperature, relative humidity and smoke detector surrounding flow stream
Speed reaches experimental condition requirement；Start air compressor and dust generator, the speed for being passed through dust meet 0.19dBm-1min-1
≤△m/△t≤0.418dBm-1min-1(refer to standard GB/T 4715-2005《Spot-type smoke detector》Annex H is tried
Fire sighting SH2- cotton cord hidden combustion fires figure is H.3), when m values reach 0.088dB/m, wherein a model smoke fire detector hair
Go out fire alarm signal, the another model smoke fire detector does not send fire alarm signal；
(4) conclusion is judged：The model detector is unsatisfactory for II grade of requirement, and anti-dust ability is poor, is not suitable for being used in one
As place (including hotel's evacu-ation walk, elevator cup, room etc.).
Embodiment 3：
Certain model air suction type smoke fire detector will be installed in certain large-scale computer room, and the model detector needs carry out III
Tested with IV grade dust glitch.Using the experimental rig of the anti-dust glitch performance of above-mentioned evaluation and test smoke detector,
Experiment evaluation and test is carried out to the model smoke fire detector anti-dust interference ability：
(1) experimental condition is set：It is less than 0.01dB/m including the initial concentration of dust in experiment casing；Temperature is 23 ± 5
℃；Relative humidity is ＜ 25%；Smoke detector surrounding flow flow velocity is 0.5 ± 0.1m/s；
(2) 2 model smoke fire detectors are chosen, its response lag sets identical；By the described 2 model sense cigarettes
Fire detector is arranged on the detector fixed disk in experiment casing, is connected to fire alarm control unit by bus, is made it
In normal monitoring state and stable operation 15min；
(3) start heater and circulating pump, make chamber body temperature, relative humidity and smoke detector surrounding flow stream
Speed reaches experimental condition requirement；Start air compressor and dust generator, the speed for being passed through dust meets：0.015dBm- 1min-1≤△m/△t≤0.1dBm-1min-1(refer to standard GB/T 4715-2005《Spot-type smoke detector》4.1.5
Save the measurement of response lag), when m values reach 0.035dB/m, the described 2 model smoke fire detectors do not send fire
Calamity alarm signal；
(4) conclusion is judged：The model detector meets III grade of requirement, is mountable to clean place (including large-scale computer room).
The smoke detector of selection is all given tacit consent in above-mentioned 3 embodiments to break down, because being to smoke detector
Anti-dust interference ability evaluated and tested, it is necessary to which smoke detector is evaluated and tested under normal operation.
Finally it should be noted that：Various embodiments above is only to illustrate the technical solution of the utility model, rather than it is limited
System；Although the utility model is described in detail with reference to foregoing embodiments, one of ordinary skill in the art should
Understand：It can still modify to the technical scheme described in foregoing embodiments, either to which part or whole
Technical characteristic carries out equivalent substitution；And these modifications or replacement, the essence of appropriate technical solution is departed from this practicality newly
Type claim limited range.
Claims (7)
- A kind of 1. experimental rig for evaluating and testing the anti-dust glitch performance of smoke detector, it is characterised in that including：Chamber Body, dust generator and test parameters supervising device, the roof inner side of the experiment casing is provided with detector fixed disk, described Test parameters supervising device is including the airspeedometer on the detector fixed disk, Hygrothermograph and located at the experiment casing Interior optics kapnometer, two detector bases are symmetrically arranged with its axle center on the detector fixed disk；It is described Include top mix dust area and bottom dust settling area, experiment casing corresponding to the top mix dust area in experiment casing Side wall, which is provided with, mends dirt mouth, is provided with heater in the bottom dust settling area, the experiment casing bottom is connected with circulating pump, institute State circulating pump and be connected to dust transfer passage and dust emission passage, the drifting dust mouth of the dust transfer passage is positioned at described In the mix dust area of top, the dust emission passage is connected with the dust-exhausting port of the experiment casing, which is provided with electrically operated valve； The dust generator that the dust generator includes air compressor, is connected with air compressor, the dust generator lead to Piping is connected with the benefit dirt mouth.
- 2. the experimental rig of the evaluation and test anti-dust glitch performance of smoke detector as claimed in claim 1, it is characterised in that： The experiment casing also includes switch board, and the switch board controls the circulating pump, the heater, the electrically operated valve to open The control panel of dynamic and closing, the airspeedometer and the Hygrothermograph and the switch board is linked by serial ports.
- 3. the experimental rig of the evaluation and test anti-dust glitch performance of smoke detector as claimed in claim 1, it is characterised in that： The dust generator, which is provided with, to be used to control the knob for adding dirt speed, and the dust generator adds dirt speed range to be 0.3 ~50mg/s.
- 4. the experimental rig of the evaluation and test anti-dust glitch performance of smoke detector as claimed in claim 1, it is characterised in that： The vertical range of experiment casing side wall where the drifting dust mouth to the benefit dirt mouth is equal to the drifting dust mouth to the chamber The vertical range of body roof.
- 5. the experimental rig of the evaluation and test anti-dust glitch performance of smoke detector as claimed in claim 4, it is characterised in that： The airflow direction of straight line where two detector bases perpendicular to the drifting dust mouth.
- 6. the experimental rig of the evaluation and test anti-dust glitch performance of smoke detector as claimed in claim 1, it is characterised in that： The dust optical concentration m value measurement ranges of the optics kapnometer are at least 0-2dB/m, measurement accuracy 0.01dB/m.
- 7. the experimental rig of the evaluation and test anti-dust glitch performance of smoke detector as claimed in claim 1, it is characterised in that： Dust concentration scope in the experiment casing is (1mg/m3-500mg/m3) ± 10%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720506436.7U CN206833692U (en) | 2017-05-09 | 2017-05-09 | Evaluate and test the experimental rig of the anti-dust glitch performance of smoke detector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720506436.7U CN206833692U (en) | 2017-05-09 | 2017-05-09 | Evaluate and test the experimental rig of the anti-dust glitch performance of smoke detector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206833692U true CN206833692U (en) | 2018-01-02 |
Family
ID=60770658
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720506436.7U Withdrawn - After Issue CN206833692U (en) | 2017-05-09 | 2017-05-09 | Evaluate and test the experimental rig of the anti-dust glitch performance of smoke detector |
Country Status (1)
| Country | Link |
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| CN (1) | CN206833692U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106935005A (en) * | 2017-05-09 | 2017-07-07 | 公安部沈阳消防研究所 | Evaluate and test the experimental rig and method of the anti-dust glitch performance of smoke detector |
-
2017
- 2017-05-09 CN CN201720506436.7U patent/CN206833692U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106935005A (en) * | 2017-05-09 | 2017-07-07 | 公安部沈阳消防研究所 | Evaluate and test the experimental rig and method of the anti-dust glitch performance of smoke detector |
| CN106935005B (en) * | 2017-05-09 | 2022-06-28 | 应急管理部沈阳消防研究所 | Test device and method for evaluating dust transient interference resistance of smoke detector |
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| CP01 | Change in the name or title of a patent holder |
Address after: 110034 No. 218-20, Wen Da Road, Huanggu District, Shenyang, Liaoning. Patentee after: Shenyang Institute of Fire Protection, Ministry of Emergency Management Address before: 110034 No. 218-20, Wen Da Road, Huanggu District, Shenyang, Liaoning. Patentee before: Shenyang Fire-Extiquishing Inst., Public Security Ministry |
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| AV01 | Patent right actively abandoned |
Granted publication date: 20180102 Effective date of abandoning: 20220628 |
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| AV01 | Patent right actively abandoned |
Granted publication date: 20180102 Effective date of abandoning: 20220628 |
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| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |