CN104766432B - Smoke-temperature sensing fire detector - Google Patents
Smoke-temperature sensing fire detector Download PDFInfo
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- CN104766432B CN104766432B CN201510120644.9A CN201510120644A CN104766432B CN 104766432 B CN104766432 B CN 104766432B CN 201510120644 A CN201510120644 A CN 201510120644A CN 104766432 B CN104766432 B CN 104766432B
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- Prior art keywords
- kernel
- optical fiber
- flue
- infundibulate
- support
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- 239000013307 optical fiber Substances 0.000 claims abstract description 57
- 239000000523 sample Substances 0.000 claims abstract description 29
- 239000000779 smoke Substances 0.000 claims abstract description 20
- 238000006243 chemical reaction Methods 0.000 claims abstract description 19
- 230000005693 optoelectronics Effects 0.000 claims abstract description 16
- 230000005540 biological transmission Effects 0.000 claims description 16
- 239000000835 fiber Substances 0.000 claims description 13
- 239000002131 composite material Substances 0.000 claims description 6
- 238000010276 construction Methods 0.000 claims description 6
- 239000000463 material Substances 0.000 claims description 6
- 239000007787 solid Substances 0.000 claims 1
- 230000035945 sensitivity Effects 0.000 abstract description 5
- 238000002955 isolation Methods 0.000 abstract description 2
- 230000003287 optical effect Effects 0.000 abstract description 2
- 238000001514 detection method Methods 0.000 description 12
- 238000012544 monitoring process Methods 0.000 description 12
- 235000019504 cigarettes Nutrition 0.000 description 7
- 230000006378 damage Effects 0.000 description 4
- 239000000126 substance Substances 0.000 description 4
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- 230000006855 networking Effects 0.000 description 3
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- 230000005611 electricity Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000002360 explosive Substances 0.000 description 2
- 238000001914 filtration Methods 0.000 description 2
- 239000003292 glue Substances 0.000 description 2
- 239000003595 mist Substances 0.000 description 2
- 230000008447 perception Effects 0.000 description 2
- 230000005622 photoelectricity Effects 0.000 description 2
- 229920000297 Rayon Polymers 0.000 description 1
- 230000033228 biological regulation Effects 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
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- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
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- 230000007935 neutral effect Effects 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
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- 229920005989 resin Polymers 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 230000000391 smoking effect Effects 0.000 description 1
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- 231100000331 toxic Toxicity 0.000 description 1
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Classifications
-
- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B17/00—Fire alarms; Alarms responsive to explosion
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- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Fire-Detection Mechanisms (AREA)
- Alarm Systems (AREA)
- Fire Alarms (AREA)
Abstract
A kind of temperature-sensitive smoke fire detector, including probe, the probe include kernel, infundibulate flue and opacus filter-type shell；Infundibulate flue is arranged in opacus filter-type shell, and infundibulate flue includes pars infundibularis and the straight sections being connected, and kernel is arranged on the straight sections of infundibulate flue；Kernel includes kernel housing and refractive body, and refractive body is arranged in kernel housing and is oppositely arranged with the optical fiber pigtail through kernel housing, and gap is provided between refractive body and optical fiber pigtail end face；Opacus filter-type shell includes chassis, shutter and support, and support is screwed in the lower edge on chassis, and shutter is screwed in the bottom of support.The present invention perceives scene temperature and smokescope using special probe, and is connected probe and opto-electronic conversion and data processor by optical fiber, realizes optical transport and electrical isolation；On the basis of guaranteeing to detect Initial Stage of Fire temperature and smog in time, reliability and the sensitivity of detector are substantially increased.
Description
Technical field
The present invention relates to fire-fighting equipment technical field, particularly a kind of fire detector.
Background technology
Fire is that have one of disaster of grave danger and destruction to human life's property and natural, ecological, is strengthened to fire
Early warning and early detection so that fire suppression in the early stage, the loss that fire causes is reduced to greatest extent has great meaning
Justice.
Being used to detect the product of fire in the market mainly has two major classes, and a class is smoke detector, and a class is temperature-sensitive
Detector.Feeling the general principle of cigarette class detector is:The light that luminous tube is sent enters photoelectric receiving tube, luminous tube through air refraction
The light beam of generation and the main lobe of reception pipe receive direction at an angle；When non smoke by the refraction of air, reception pipe is received
Light it is seldom；In the presence of having smog in air, smoke particles produce refraction to light, the light increase for receiving reception pipe, smog
Concentration is bigger, and refraction light is more, and the light that reception pipe is received is more, and the signal of output is stronger；The signal that reception pipe is exported is set
Ding Valve values, just can send alarm signal after smokescope reaches certain value, reach that early stage finds out the purpose of fire.It is such to visit
Survey device is point detector, and itself carries power supply（Battery）For luminous tube, reception pipe and sound and light alarm device normal work；Wanting
Seek not high occasion（Such as hotel room）Use this scheme more.Heat detector is to perceive temperature using thermally sensitive material
Degree change（Such as thermistor, optical fiber transmission line etc.）, certain value is set, when temperature rises to the setting value（Or temperature rise is in regulation
It is interior to reach the setting value）When send sound and light alarm signal, so as to detect the generation of fire.Such detector can make point-type
Or line style；To be varied with temperature using one section of optical fiber geometry or physics occur for Linear optical fiber heat fire detector, its principle
Change, so that the parameter for changing the light transmitted in optical fiber comes sense temperature or thermograde, reaches the purpose of detection fire.
Luminous tube, reception pipe, alarm appliance and the battery of existing smoke point detector are all arranged in a shell,
Installed in the position to be detected.It has the disadvantage：1. battery will be changed on time, and detector is equal to illusory, hair if changing not in time
Raw failing to report phenomenon；2. when fire occurs, even if detector normally sends sound and light alarm signal, if unattended on the spot, it can also make a gift of
Mistake the chance and cause fire spread；If 3. detector is arranged on corrosivity and has flammable explosive substance（Gas or liquid object）Field
Close, the faint spark produced by battery loose contact can fire hazard, detector is become disaster hidden-trouble；4. monitoring point is worked as
Temperature is raised quickly during generation fire, and hydraulic performance decline or even damage, shadow occurs in some electronic devices under unexpected high-temperature condition
Ring Normal Alarm；If 5. detector is arranged on high voltage or toxic and harmful gas occasion, battery is changed inherently big into one
Problem.Disadvantages mentioned above limits the performance of its application and detection performance.
Existing point heat detector, its shortcoming is as smoke point detector.
Existing linear optical fiber heat detector can isolate monitoring point and electric part space, and its electric part is often
Using mains-supplied, the detecting head installed in monitoring point is one section of optical fiber, the characteristics of with corrosion-resistant, electromagnetism interference, preferably
Ground overcomes the shortcoming that above-mentioned point detector is present.But, this sensor is arranged on the position that need to be detected except detection section optical fiber
Outside, remaining optical fiber will be then environmentally isolated with being detected, and cause the detector to be arranged on the innerland in detected region, such as will
Detection optical fiber section（1m or so）Installed in position near the window, remaining optical fiber out of doors, causes space exploration to be limited, it is impossible in time
The information of Initial Stage of Fire is detected, sensitivity and the reliability of detection is greatly reduced.
In addition, current smoke detector is only sensitive to smog, heat detector is only temperature sensitive, and fire occurs just
Phase, possible smog is larger, and this can be perceived to smoke detector, but temperature sensitive type detector can not then be perceived；May also smog it is little
Simply naked light burn, this can be perceived to heat detector but smoke detector can not be perceived, it is seen then that no matter it is separately installed that spy
Survey device and be all unable to the different types of fire of complete perception.Therefore cigarette can be felt and the optical-fiber type fire of energy temperature-sensitive by developing same detector
Fire detector, so that overcome above-mentioned listed shortcoming, it is necessary, and fire detection technology will be promoted to create a new situation.
The content of the invention
It can feel cigarette and the optical fiber type fire detector of energy temperature-sensitive in view of the deficiencies of the prior art, the present invention provides a kind of,
On the basis of guaranteeing to detect Initial Stage of Fire temperature and smog in time, its reliability and sensitivity are further improved.
In order to solve the above technical problems, the technical solution used in the present invention is as follows.
Temperature-sensitive smoke fire detector, including the probe equipped with optical fiber pigtail for detecting temperature and smokescope, the spy
Head includes kernel, infundibulate flue and opacus filter-type shell；The infundibulate flue is arranged in opacus filter-type shell,
Infundibulate flue includes pars infundibularis and the straight sections being connected, and kernel is arranged on the straight sections of infundibulate flue；The kernel bag
Kernel housing and refractive body are included, refractive body is arranged in kernel housing and is oppositely arranged with the optical fiber pigtail through kernel housing, instead
The gap passed through for smog is provided between body of light and optical fiber pigtail end face；The opacus filter-type shell includes chassis, shutter
And the support of infundibulate flue is installed, support is screwed in the lower edge on chassis by locator card, and shutter is screwed in support
Bottom.
Above-mentioned temperature-sensitive smoke fire detector, the kernel housing is the rectangle constituted by connecting on four sides without hamper
Body, the right side of kernel housing is provided with optical fiber pigtail lock chamber, and the left side of kernel housing is provided with the fixation of fixed refractive body
Groove.
Above-mentioned temperature-sensitive smoke fire detector, the refractive body is the sheet fold-type composite construction that thermo-sensitive material is made, piece
The refractive body of shape fold-type composite construction includes the horizontal plane and the oblique facade in kernel housing being arranged in fixed groove, institute
The axis for stating oblique facade and optical fiber pigtail is in leave to pass through for smog between the α angles reflected for light, oblique facade and optical fiber pigtail end face
Gap.
Above-mentioned temperature-sensitive smoke fire detector, the bottom of the infundibulate flue pars infundibularis is provided with grating ring, the grating ring
Between support and shutter.
Above-mentioned temperature-sensitive smoke fire detector, the support includes the support arm and inner support being fixedly connected by screw,
The upper end of support arm is screwed in the lower edge on chassis by locator card, and shutter is screwed in the bottom of support arm；Inner support is set
Between support arm and chassis；The pars infundibularis of the infundibulate flue is positioned by support arm, and the straight sections of infundibulate flue are led to
Cross inner support positioning.
Above-mentioned temperature-sensitive smoke fire detector, the probe connects an opto-electronic conversion and data processing by Transmission Fibers
Device, the optical fiber pigtail of probe and one end of Transmission Fibers are connected by optical fiber articulation, and the other end connection photoelectricity of Transmission Fibers turns
Change and data processor；The output port of the opto-electronic conversion and data processor connects audible-visual annunciator and 485/USB respectively
Converter.
As a result of above technical scheme, the invention technological progress is as follows.
Optical fiber perceives scene temperature and cigarette using special probe only as transmission line as detector in the present invention
Mistiness degree, and will be popped one's head in and opto-electronic conversion and data processor connection by optical fiber, realize optical transport and electrical isolation；
Guarantee to detect in time on the basis of Initial Stage of Fire temperature and smog, substantially increase reliability and the sensitivity of detector.
The present invention can monitoring temperature variable gradient and smog simultaneously, to the few cigarette class condition of a fire of naked light and the thickness class condition of a fire can early detection,
Directly instead of while install temperature sensitive type and sense cigarette two kinds of detectors of type, detect the scheme of different fire, save it is a large amount of install and
Maintenance cost.
The probe of the present invention is all made using resistant material, available for the monitoring with corrosive atmosphere, such as chemical industry
Department, harbour warehouse, large ship etc.；Because transmission medium of the invention in monitored environment is light, therefore can be safe
Use the detection in inflammable and explosive environment, such as cable duct, dust workshop, chemicals warehouse, fireworks and firecrackers manufacturing enterprise, large-scale grain
Storehouse, heap coal yard, ammunition depot, chemical plant, pharmaceutical factory etc.；The present invention does transmission channel using optical fiber, makes detection site and photoelectricity
Realized between conversion and data processor it is preferable be electrically isolated, therefore can be safely used for high voltage electric equipment, the monitoring of transformer station,
It can be directly mounted on high-tension apparatus or near high-tension apparatus, and not by electromagnetic interference.It is also possible to apply the invention to power system
In, can be in partial short-circuit（Such as small current neutral grounding, end insulation breakdown causes short-circuit between conductors to trigger large area off-grid etc.）It is preceding or
Early detection hidden danger occurs for fire, so as to avoid the generation of major accident.
Brief description of the drawings
Fig. 1 is general structure block diagram of the invention；
Fig. 2 is the assembling structure schematic diagram of probe；
Fig. 3 is the structural representation of kernel housing in probe；
Fig. 4 is the structural representation of refractive body in probe.
Each label is expressed as in figure：1st, pop one's head in, 11, kernel, 111, kernel housing, 112, fixed groove, 113, refractive body,
12nd, optical fiber pigtail, 13, infundibulate flue, 14, support arm, 15, inner support, 16, shutter, 17, chassis, 18, grating ring, 2, optical fiber
Articulation, 3, opto-electronic conversion and data processor, 4, Transmission Fibers, 5, power supply, 6, audible-visual annunciator, 7,485/USB converters.
Embodiment
Below in conjunction with the drawings and specific embodiments, the present invention will be described in further detail.
Temperature-sensitive smoke fire detector of the present invention, its structured flowchart are as shown in figure 1, including probe 1, optical fiber articulation 2, light
Electricity conversion and data processor 3, Transmission Fibers 4, power supply 5, audible-visual annunciator 6 and 485/USB converters 7.Pop one's head in for visiting
Optical fiber pigtail 12 is housed, the outer end of optical fiber pigtail passes through optical fiber articulation 2 and Transmission Fibers 4 in testing temperature and smokescope, probe
One end is connected, the other end connection opto-electronic conversion and data processor 3 of Transmission Fibers 4；The output end connection opto-electronic conversion of power supply 5
And the power end of data processor 3, for being powered for it；The output port of electricity conversion and data processor 3 connects acousto-optic respectively
Alarm 6 and 485/USB converters 7.
The structure of probe 1 is as shown in Fig. 2 including kernel 11, infundibulate flue 13 and opacus filter-type shell, kernel peace
In infundibulate flue 13, infundibulate flue 13 is arranged in opacus filter-type shell.
Kernel includes kernel housing 111 and refractive body 113, and refractive body 113 is arranged in kernel housing, and with through kernel
The optical fiber pigtail 12 of housing is oppositely arranged, and the gap passed through for smog is provided between refractive body and optical fiber pigtail end face.
The structure of kernel housing 111 is as shown in figure 3, rectangle uncovered box body to be constituted by connecting on four sides, wall thickness 1mm,
The right side of kernel housing is provided with optical fiber pigtail lock chamber, for through optical fiber pigtail and being fixed in kernel housing；Kernel
The left side of housing is provided with fixed groove 112, for fixing refractive body.In the present embodiment, refractive body is fixed using resin glue
In fixed groove.
Refractive body is the sheet fold-type composite construction that thermo-sensitive material is made, and the refractive body of sheet fold-type composite construction includes peace
Horizontal plane in fixed groove and the oblique facade in kernel housing, as shown in figure 4, the tiltedly axis of facade and optical fiber pigtail
Between be in the α angles reflected for light, the gap passed through for smog is left between oblique facade and optical fiber pigtail end face.Refractive body it is compound anti-
Penetrating principle is：Light injects oblique facade from optical fiber pigtail, and is reflected back optical fiber by oblique facade；When having cigarette between oblique facade and fiber end face
During mist particle, the intensity of reflected light can change；When the temperature varies, refractive body, which can also produce deformation, makes reflected light
Intensity changes；（Except the scope of room temperature ± 20 DEG C）I.e. either smog change or fire occur after temperature become
Change or two kinds of factors occur simultaneously, can all cause the change of intensity of reflected light, when intensity of reflected light rate of change reaches setting
During value, you can be judged as Initial Stage of Fire early warning.The present invention can be by accurately calculating the inclination alpha and reflecting surface and optical fiber end of reflecting surface
The gap width in face, you can ensure the variability in the same direction of reflected light caused by the change of thermograde and smokescope, it is ensured that
The compatibility of two kinds of different factors.
Opacus filter-type shell includes chassis 17, shutter 16 and the support for installing infundibulate flue, and it is fixed that support passes through
Position card is screwed in the lower edge on chassis, and shutter is screwed in the bottom of support, and used in blinds is in filtering out compared with bigger material.Support includes
The support arm 14 and inner support 15 being fixedly connected by screw, the upper end of support arm 14 is screwed under chassis 17 by locator card
Edge, shutter 16 is screwed in the bottom of support arm 14；Inner support 15 is arranged between support arm 14 and chassis 17.
Infundibulate flue 13 includes pars infundibularis and the straight sections being connected, and the straight sections of infundibulate flue are provided with a kernel
Mounting hole, for installing kernel 11.The pars infundibularis of infundibulate flue 13 is positioned by support arm 14, the straight tube of infundibulate flue 13
Portion is positioned by inner support 15.Fixed in the present embodiment between infundibulate flue and support arm and inner support by bonding way.
The design of funnel type flue improves the sensitivity to smog and hot-air perception.
The bottom of infundibulate flue pars infundibularis is provided with grating ring 18, and grating ring is located between support and shutter, rise filter and
Filter dirt effect.When smog enters the pars infundibularis of infundibulate flue from grating ring surrounding, grating ring can be by larger dust particle and straight
Penetrate light to filter out, smog is accumulated the refractive body that the larger smog of concentration is sent into straight sections kernel by the pars infundibularis of infundibulate flue
Gap between optical fiber pigtail, smog and temperature information are gathered for kernel.Pair that the present invention is made up of shutter and flue grating ring
The opacus filtration of weight, substantially increases the accuracy detected to Initial Stage of Fire.
The operation principle of the present invention is as described below：
Opto-electronic conversion and data processor produce light source, and probe is transported to by optical fiber, after being reflected by refractive body and edge
Fiber reflection turns back, the optical fiber directional coupler pickup reflected light in opto-electronic conversion and data processor.When probe sense temperature
Or after smog, reflective light intensity is modulated by temperature or smog, now reflect photogenerated electric signal also indirectly it is modulated, to by
Electric signal to modulation is handled and just can obtain temperature or the full information of smog, so as to detect the initial generation of fire.When
One in temperature or smog information exceed setting threshold value when, opto-electronic conversion and data processor are just sent to audible-visual annunciator
Sound and light alarm control signal, audible-visual annunciator sends sound and light alarm.
When the present invention is installed, the kernel with optical fiber pigtail is arranged on to the kernel mounting hole of infundibulate flue straight sections first
It is interior, then the infundibulate flue with kernel is fixed on support center（With screw or viscose glue）, optical fiber pigtail stretch out support outside；Secondly
Chassis is screwed in building on top, support and chassis are spun by locator card, and shutter is screwed in by locator card
Below support；Then one end of Transmission Fibers is connected with opto-electronic conversion and data processor；Finally by the optical fiber pigtail in probe
Optical fiber articulation is installed in the one end stretched out outside detecting head, then the other end of optical fiber articulation is connected with Transmission Fibers；So as to group
Into an independent probe unit.
Above-mentioned probe unit can be used alone, if configuration 9V power supplys, and data output end is passed through into 485/USB converters
It is connected with microcomputer.If discord microcomputer is connected, the control of the audible-visual annunciator of probe unit in opto-electronic conversion and data processor
Also local sound and light alarm can be completed under system.
Probe unit in the process of running can be by the temperature jump and the quick change two of smokescope produced except fire
The interference of many factors beyond the factor of kind, such as：The slow change interference of ambient humidity, the fluctuation interference of power supply, electromagnetic wave it is dry
Disturb, environment temperature（Mist）Interference, the sudden and violent interference of outdoor-monitoring point sand dust, optical fiber produced by mechanical damage or damage disturbed,
Interference that artificial smoking is caused and other many industry disturbances etc., if these interference, which can not be excluded effectively, can all cause wrong report
It is alert.The present invention sets interference threshold, gradient cycle and the modes such as Jing Valve values of Baoing by recording interference value size, excludes except temperature
False alarm caused by the interference that degree mutation and smokescope quickly change beyond two kinds of factors, it is ensured that the detection of probe unit
Energy uniformity and repeatability, it is ensured that the flexibility of networking and security.
The present invention can also carry out flexible networking, pure photo detecting unit long lifespan, freedom from repairs, be particularly suitable for use in large-scale community,
Factories and miness, market, large-scale Industry system remote monitoring, multiple spot monitoring.When multiple probe unit networkings monitor multiple skies on-line simultaneously
Between when putting, as long as being that multiple probe units are powered with 9V power bus, the data output of each opto-electronic conversion and data processor
End is connected by 485/USB converters with microcomputer respectively, you can composition shows and controlled multiple monitoring unit by a microcomputer
Monitor network.By the multipoint data of monitoring net by wired or wireless mode teletransmission, Surveillance center that can be in the distance is simultaneously
The real-time working condition of multiple spot in in-service monitoring and control net.
Claims (4)
1. temperature-sensitive smoke fire detector, including the probe (1) equipped with optical fiber pigtail (12) for detecting temperature and smokescope, its
It is characterised by：The probe (1) includes kernel (11), infundibulate flue (13) and opacus filter-type shell；The infundibulate
Flue (13) is arranged in opacus filter-type shell, and infundibulate flue (13) includes pars infundibularis and the straight sections being connected, kernel
(11) straight sections of infundibulate flue are arranged on；The kernel includes kernel housing (111) and refractive body (113), refractive body
(113) it is arranged in kernel housing and is oppositely arranged with the optical fiber pigtail (12) through kernel housing, refractive body and optical fiber pigtail end face
Between be provided with the gap passed through for smog；The opacus filter-type shell includes chassis (17), shutter (16) and installed
The support of infundibulate flue, support is screwed in the lower edge on chassis by locator card, and shutter is screwed in the bottom of support；
The kernel housing (111) is the rectangle uncovered box body constituted by connecting on four sides, and the right side of kernel housing is set
There is optical fiber pigtail lock chamber, the left side of kernel housing is provided with the fixed groove (112) of fixed refractive body；
The refractive body is the sheet fold-type composite construction that thermo-sensitive material is made, and the refractive body of sheet fold-type composite construction includes peace
Horizontal plane in fixed groove and the oblique facade in kernel housing, the axis of the oblique facade and optical fiber pigtail are in supply light
The gap passed through for smog is left between the α angles of reflection, oblique facade and optical fiber pigtail end face.
2. temperature-sensitive smoke fire detector according to claim 1, it is characterised in that：The infundibulate flue pars infundibularis
Bottom is provided with grating ring (18), and the grating ring is located between support and shutter.
3. temperature-sensitive smoke fire detector according to claim 2, it is characterised in that：The support includes solid by screw
Surely the support arm (14) and inner support (15) connected, the upper end of support arm (14) is screwed in the following of chassis (17) by locator card
Edge, shutter (16) is screwed in the bottom of support arm (14)；Inner support (15) is arranged between support arm (14) and chassis (17)；
The pars infundibularis of the infundibulate flue (13) is positioned by support arm (14), and the straight sections of infundibulate flue (13) pass through inner support
(15) position.
4. temperature-sensitive smoke fire detector according to claim 3, it is characterised in that：The probe (1) passes through transmission light
Fine (4) connect an opto-electronic conversion and data processor (3), and the optical fiber pigtail (12) of probe passes through light with one end of Transmission Fibers (4)
Fine articulation (2) connection, the other end connection opto-electronic conversion and data processor (3) of Transmission Fibers (4)；The opto-electronic conversion and
The output port of data processor (3) connects audible-visual annunciator (6) and 485/USB converters (7) respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510120644.9A CN104766432B (en) | 2015-03-19 | 2015-03-19 | Smoke-temperature sensing fire detector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510120644.9A CN104766432B (en) | 2015-03-19 | 2015-03-19 | Smoke-temperature sensing fire detector |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104766432A CN104766432A (en) | 2015-07-08 |
| CN104766432B true CN104766432B (en) | 2017-08-25 |
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ID=53648231
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510120644.9A Expired - Fee Related CN104766432B (en) | 2015-03-19 | 2015-03-19 | Smoke-temperature sensing fire detector |
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| CN105488942A (en) * | 2016-01-21 | 2016-04-13 | 李文田 | Small fire detector |
| JP7088751B2 (en) * | 2018-06-15 | 2022-06-21 | 矢崎総業株式会社 | Mounting structure of smoke exhaust temperature sensor |
| CN109816924B (en) * | 2019-03-19 | 2024-03-22 | 浙江东方职业技术学院 | Correlation formula smoke transducer |
| CN110246296A (en) * | 2019-06-11 | 2019-09-17 | 应急管理部四川消防研究所 | Fire detection monitoring system and its implementation applied to city integrated piping lane |
| CN110567850A (en) * | 2019-08-26 | 2019-12-13 | 苏州双刘精密仪器有限公司 | High-sensitivity optical fiber sensing system based on big data analysis |
| CN113223265A (en) * | 2020-12-23 | 2021-08-06 | 青岛鼎信通讯消防安全有限公司 | Multi-scene smoke detector based on bidirectional blue light detection and self-adaptive identification method |
| CN113327393A (en) * | 2021-05-25 | 2021-08-31 | 威海海洋职业学院 | Ship fire monitoring and early warning device based on machine learning |
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|---|---|---|---|---|
| CH638101A5 (en) * | 1979-05-21 | 1983-09-15 | Cerberus Ag | FIRE DETECTORS. |
| CN2742431Y (en) * | 2004-11-15 | 2005-11-23 | 中国科学院合肥智能机械研究所 | Fire probe device |
| AT502655B1 (en) * | 2006-06-28 | 2007-05-15 | Schweighofer Franz | Rotation symmetric ceiling light for use in room, has admission region formed in heat storing way and end region formed in heat rejecting way proximate to smoke detector for causing temperature difference along air inlet connecting piece |
| CN201274081Y (en) * | 2008-09-25 | 2009-07-15 | 王荣庆 | Cartridge type smoke alarm |
| GB2489039B (en) * | 2011-03-17 | 2013-07-03 | Ddc Ltd | Recessed smoke or heat detector |
| CN202795641U (en) * | 2012-08-03 | 2013-03-13 | 武汉发博科技有限公司 | Reflecting type point-pattern optical fiber smoke and temperature sensing fire detector |
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2015
- 2015-03-19 CN CN201510120644.9A patent/CN104766432B/en not_active Expired - Fee Related
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| CN104766432A (en) | 2015-07-08 |
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Effective date of registration: 20171214 Address after: Li Zhuang Jie lotus 071000 area in Hebei city of Baoding province No. 139 2-2-602 Patentee after: Chen Dayong Address before: 071005 Baoding, Baoding, Hebei, 2 unit 602 Patentee before: Baoding Li Dou Electronic Science and Technology Co., Ltd. |
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Granted publication date: 20170825 Termination date: 20180319 |