CN109979155A - A kind of smoke detection labyrinth - Google Patents
A kind of smoke detection labyrinth Download PDFInfo
- Publication number
- CN109979155A CN109979155A CN201910317266.1A CN201910317266A CN109979155A CN 109979155 A CN109979155 A CN 109979155A CN 201910317266 A CN201910317266 A CN 201910317266A CN 109979155 A CN109979155 A CN 109979155A
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- China
- Prior art keywords
- reception pipe
- transmitting tube
- optical axis
- pipe
- smoke detection
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- 239000000779 smoke Substances 0.000 title claims abstract description 33
- 238000001514 detection method Methods 0.000 title claims abstract description 22
- 230000003287 optical effect Effects 0.000 claims abstract description 33
- 230000001154 acute effect Effects 0.000 claims abstract description 4
- 210000003027 ear inner Anatomy 0.000 claims abstract 13
- 238000009434 installation Methods 0.000 claims description 13
- 230000000149 penetrating effect Effects 0.000 claims 1
- 235000019504 cigarettes Nutrition 0.000 description 5
- 230000035945 sensitivity Effects 0.000 description 5
- 239000000428 dust Substances 0.000 description 4
- 230000001186 cumulative effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000006698 induction Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 1
- 239000003086 colorant Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000003595 mist Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B17/00—Fire alarms; Alarms responsive to explosion
- G08B17/10—Actuation by presence of smoke or gases, e.g. automatic alarm devices for analysing flowing fluid materials by the use of optical means
- G08B17/103—Actuation by presence of smoke or gases, e.g. automatic alarm devices for analysing flowing fluid materials by the use of optical means using a light emitting and receiving device
- G08B17/107—Actuation by presence of smoke or gases, e.g. automatic alarm devices for analysing flowing fluid materials by the use of optical means using a light emitting and receiving device for detecting light-scattering due to smoke
Landscapes
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Investigating Or Analysing Materials By Optical Means (AREA)
Abstract
The present invention provides a kind of smoke detection labyrinths, chamber is measured including labyrinth and intracavitary two groups of transmitting tubes and reception pipe are measured set on the labyrinth, wherein, angle of the optical axis of first transmitting tube respectively between the optical axis of the first reception pipe and the optical axis of the second reception pipe is equal and is acute angle, so that the first transmitting tube constitutes backward light path with the first reception pipe and the second reception pipe respectively；Angle of the optical axis of second transmitting tube respectively between the optical axis of the first reception pipe and the optical axis of the second reception pipe is equal and is obtuse angle, so that the second transmitting tube constitutes preceding Xiang Guanglu with the first reception pipe and the second reception pipe respectively.The smoke detection labyrinth has the advantages that design science, improves the responding ability to various smog, reduces wrong report, mutually calibration.
Description
Technical field
The present invention relates to smoke detector fields, specifically, relate to a kind of smoke detection labyrinth.
Background technique
Widely used smoke detector has ion smoke detector and photoelectric smoke to visit in automatic fire alarm system
Survey two kinds of device.Ion smoke detector is preferable to various open fire smoke detection effects, can also detect to smoldering fire smog, but due to
It is easy affected by environment, and false alarm rate is higher, and the pollution sources containing low energy, is unable to satisfy and wants to Product Green environmental protection
It asks, is replaced by optical detector of fire smoke substantially.
Currently, the smoke fire detector of commercial type is all using infrared beam scattering principle, related sense cigarette
It detects labyrinth white biggish to partial size or grey smoke detection sensitivity is higher, but to the lesser black smoke detection of partial size
Sensitivity is poor.To improve sensitivity of the existing smoke detector to the smaller black smog of partial size, frequently with reduction alarm threshold value
Mode, but when have the very slight colors such as dust, smoke from cigarette smog interference when, the smokescope of very little will be such that detector goes out
It is now exported more than the response of alarm threshold value, the phenomenon that false alarm usually occurs.
Existing smoke detector is all equipped with a transmitting tube, when transmitting tube damages, often to dismantle then
Again dress shell calibration, it is time-consuming and laborious.
In order to solve the above problems, people are seeking always a kind of ideal technical solution.
Summary of the invention
The purpose of the present invention is in view of the deficiencies of the prior art, to provide a kind of design science, improve to various smog
Responding ability, reduce wrong report, the smoke detection labyrinth mutually calibrated.
To achieve the goals above, the technical scheme adopted by the invention is that: a kind of smoke detection labyrinth, including labyrinth survey
Amount chamber and measure intracavitary two groups of transmitting tubes and reception pipe set on the labyrinth, wherein the optical axis of the first transmitting tube is respectively with the
Angle between the optical axis of one reception pipe and the optical axis of the second reception pipe is equal and is acute angle, thus the first transmitting tube respectively with
First reception pipe and the second reception pipe constitute backward light path；The optical axis of second transmitting tube respectively with the optical axis of the first reception pipe and
Angle between the optical axis of two reception pipes is equal and is obtuse angle, so that the second transmitting tube connects with the first reception pipe and second respectively
Xiang Guanglu before closed tube is constituted.
Described on base, first transmitting tube and second transmitting tube are controlled by individual control switch and are opened and closed.
It is described on base, first transmitting tube, second transmitting tube, first reception pipe and second reception pipe
Front end be respectively mounted lens.
It is described on base, shielding case is installed in first reception pipe and the second reception pipe.
Described on base, the installation site of first transmitting tube, first reception pipe and second reception pipe is located at
On same circumference in same plane, the installation position of first transmitting tube, first reception pipe and second reception pipe
Line constitutes isosceles triangle between setting.
It is described on base, the installation site of second transmitting tube be located at first transmitting tube, first reception pipe and
The top of the installation site of second reception pipe.
Described on base, first transmitting tube emits blue visible light, and second transmitting tube emits infrared light；Alternatively,
First transmitting tube emits infrared light, and second transmitting tube emits blue visible light.
The present invention has substantive distinguishing features outstanding and significant progress compared with the prior art, and specifically, the present invention adopts
Designed with three-dimensional structure, to optical path and two groups of backward light paths before two groups of composition, and the first reception pipe both done before connect to optical path
It receives device and does backward light path receiving device again, the second reception pipe, which had not only been done, preceding to optical path receiving device but also makees backward light path receiver
Part, so that light intensity is strengthened, the cumulative ability improved to smog response of two reception signals, without turning down induction
Threshold value also eliminates the need for reporting phenomenon caused by the reason by mistake.
Two transmitting tubes form two groups of optical paths, and in final operation deterministic process, the average value of desirable two groups of data is sentenced
Determine the degree that dust accumulates in labyrinth, slowly varying dust accumulation is compensated, pollution alarm is issued after exceeding.
In the case where two transmitting tubes are symmetrically installed, two transmitting tubes can be calibrated each other, when a certain transmitting tube failure,
Fault message can be quickly known using the data that another transmitting tube obtains, and can temporarily be worked on instead of failure emitter.
Detailed description of the invention
Fig. 1 is the structural schematic diagram in smoke detection labyrinth in the present invention.
Fig. 2 is the structural schematic diagram in smoke detection labyrinth in other embodiments.
In figure: 1. first transmitting tubes；2. the second transmitting tube；3. the first reception pipe；4. the second reception pipe.
Specific embodiment
Below by specific embodiment, technical scheme of the present invention will be described in further detail.
As shown in Figure 1, a kind of smoke detection labyrinth, measures chamber including labyrinth and measures intracavitary two groups set on the labyrinth
Transmitting tube and reception pipe, wherein the optical axis of the first transmitting tube 1 light with the optical axis of the first reception pipe 3 and the second reception pipe 4 respectively
Angle between axis is equal and is acute angle, so that the first transmitting tube 1 is constituted with the first reception pipe 3 and the second reception pipe 4 respectively
Backward light path；The optical axis of second transmitting tube 2 folder between the optical axis of the first reception pipe 3 and the optical axis of the second reception pipe 4 respectively
Angle is equal and is obtuse angle, so that the second transmitting tube 2 constitutes preceding Xiang Guanglu with the first reception pipe 3 and the second reception pipe 4 respectively.The
One reception pipe 3 receive one group before to optical path and one group of backward light path, the second reception pipe 4 also receive one group before to optical path and one
Group backward light path improves light intensity, the cumulative responding ability improved to smog of two reception signals.
In the present embodiment, the installation site of first transmitting tube 1, first reception pipe 3 and second reception pipe 4
On the same circumference being in the same plane, first transmitting tube 1, first reception pipe 3 and second reception pipe 4
Between installation site line constitute isosceles triangle, the installation site of first transmitting tube 2 be located at first transmitting tube 1,
The top of the installation site of first reception pipe 3 and second reception pipe 4；Two transmitting tubes are symmetrically installed, can be each other
Calibration can quickly know fault message using the data that another transmitting tube obtains, and being capable of temporary generation when a certain transmitting tube failure
It works on for failure emitter.
In other embodiments, as shown in Fig. 2, first transmitting tube 1, second transmitting tube 2,3 and of the first reception pipe
Second reception pipe 4 is respectively positioned in same plane.
First transmitting tube 1 emits blue visible light, and second transmitting tube 2 emits infrared light, alternatively, described first
Transmitting tube 1 emits infrared light, and second transmitting tube 2 emits blue visible light；Smog of the blue visible light to fire early stage
Grain and partial size are sensitive less than the response of the open fire of 0.4 μm of particle, and infrared light responds spirit to the glow grey white cigarette of generation of timber, continuous rope
It is quick, by blue visible light and infrared light Combination Design, can take into account to the biggish white cigarette of partial size and the lesser black smoke of partial size
Sensitivity extremely early finds fire hazard in Initial Stage of Fire, improves the Stability and veracity to fire detection.
First transmitting tube 1 and second transmitting tube 2 are controlled by individual control switch to be opened and closed；In use, according to
Difference needs, and can use individually, can also be used in conjunction with.
In order to meet the needs of different installation sites, first transmitting tube 1, second transmitting tube 2, described first are connect
The front end of closed tube 3 and second reception pipe 4 is respectively mounted lens.
In order to shield outside electromagnetic interference, shielding case is installed in first reception pipe 3 and the second reception pipe 4.
Working principle:
The combination of blue visible light and infrared light takes into account the sensitivity to the biggish white cigarette of partial size and the lesser black smoke of partial size, mentions
Stability and veracity of the height to fire detection.
When smog enters detector labyrinth, the blue visible light (infrared light) of the first transmitting tube 1 transmitting and the second transmitting
The infrared light (blue visible light) that pipe 2 emits, encounters smoke particle and scatters, and the first reception pipe 3 is received from the first hair
The light before the light and the second transmitting tube 2 of 1 backward light path of pipe to optical path is penetrated, the second reception pipe 4 receives backward from the first transmitting tube 1
To the light of optical path before the light of optical path and the second transmitting tube 2, the light intensity that receives is reinforced, it is not necessary to reduce induction threshold value, reduce pair
The wrong report of dust, water mist.
When calibration, two transmitting tubes are individually enabled, if one of reception pipe can not receive normal scattering light,
The then reception pipe failure does not receive another transmitting when two reception pipes can receive the normal value of one of transmitting tube
When the normal value of pipe, then another transmitting tube failure, is repaired to facilitate and adjust.
Finally it should be noted that: the above embodiments are merely illustrative of the technical scheme of the present invention and are not intended to be limiting thereof；To the greatest extent
The present invention is described in detail with reference to preferred embodiments for pipe, it should be understood by those ordinary skilled in the art that: still
It can modify to a specific embodiment of the invention or some technical features can be equivalently replaced；Without departing from this hair
The spirit of bright technical solution should all cover within the scope of the technical scheme claimed by the invention.
Claims (7)
1. a kind of smoke detection labyrinth, it is characterised in that: measure chamber including labyrinth and measure intracavitary two groups set on the labyrinth
Transmitting tube and reception pipe, wherein the optical axis of the first transmitting tube optical axis with the optical axis of the first reception pipe and the second reception pipe respectively
Between angle it is equal and be acute angle, thus the first transmitting tube constituted respectively with the first reception pipe and the second reception pipe after Xiang Guang
Road；Angle of the optical axis of second transmitting tube respectively between the optical axis of the first reception pipe and the optical axis of the second reception pipe is equal and equal
For obtuse angle, thus the second transmitting tube constituted respectively with the first reception pipe and the second reception pipe before Xiang Guanglu.
2. smoke detection labyrinth according to claim 1, it is characterised in that: first transmitting tube and second transmitting
Pipe is controlled by individual control switch and is opened and closed.
3. smoke detection labyrinth according to claim 1 or 2, it is characterised in that: first transmitting tube, second hair
The front end for penetrating pipe, first reception pipe and second reception pipe is respectively mounted lens.
4. smoke detection labyrinth according to claim 3, it is characterised in that: in first reception pipe and the second reception pipe
Shielding case is installed.
5. according to claim 1,2 or 4 described in any item smoke detection labyrinths, it is characterised in that: first transmitting tube, institute
It states on the same circumference that the installation site of the first reception pipe and second reception pipe is in the same plane, first transmitting
Line constitutes isosceles triangle between pipe, first reception pipe and the installation site of second reception pipe.
6. smoke detection labyrinth according to claim 5, it is characterised in that: the installation site of second transmitting tube is located at
The top of the installation site of first transmitting tube, first reception pipe and second reception pipe.
7. according to claim 1, the described in any item smoke detection labyrinths in 2,4 or 6, it is characterised in that: first transmitting tube
Emit blue visible light, second transmitting tube emits infrared light；Alternatively, first transmitting tube emits infrared light, described the
Two transmitting tubes emit blue visible light.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910317266.1A CN109979155A (en) | 2019-04-19 | 2019-04-19 | A kind of smoke detection labyrinth |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910317266.1A CN109979155A (en) | 2019-04-19 | 2019-04-19 | A kind of smoke detection labyrinth |
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| Publication Number | Publication Date |
|---|---|
| CN109979155A true CN109979155A (en) | 2019-07-05 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910317266.1A Pending CN109979155A (en) | 2019-04-19 | 2019-04-19 | A kind of smoke detection labyrinth |
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| Country | Link |
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| CN (1) | CN109979155A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110992638A (en) * | 2019-12-24 | 2020-04-10 | 无锡商业职业技术学院 | Calibration method and calibration device for smoke detector |
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|---|---|---|---|---|
| US4857895A (en) * | 1987-08-31 | 1989-08-15 | Kaprelian Edward K | Combined scatter and light obscuration smoke detector |
| US20020153499A1 (en) * | 2001-04-19 | 2002-10-24 | Ulrich Oppelt | Scattered light smoke alarm |
| CN1680982A (en) * | 2004-04-06 | 2005-10-12 | 诺瓦尔有限公司 | Fire disaster identifying method and fire alarm therefor |
| CN1949285A (en) * | 2006-10-31 | 2007-04-18 | 中国科学技术大学 | Photoelectric smoke sensing fire detecting method and apparatus based on depolarization rate |
| CN200963473Y (en) * | 2006-10-31 | 2007-10-24 | 中国科学技术大学 | Photoelectric smoke-sensitive fire detecting device based on depolarization rate |
| CN101656011A (en) * | 2009-05-27 | 2010-02-24 | 北京奥腾讯达科技有限公司 | Universal smoke fire detector |
| CN101833840A (en) * | 2010-05-14 | 2010-09-15 | 公安部沈阳消防研究所 | Front/back scattering combined spot-type photoelectric smoke detector and detection method thereof |
| US20140168647A1 (en) * | 2012-12-18 | 2014-06-19 | Excelitas Canada, Inc. | Integrated smoke cell |
| CN109601019A (en) * | 2016-08-25 | 2019-04-09 | 西门子瑞士有限公司 | For carrying out the method for fire detection and such scattered light smoke warner according to scattering light principle, by for connecting different wave length alternately with the other LED unit for the other optical pulse strikes for scattering angular |
| CN209842824U (en) * | 2019-04-19 | 2019-12-24 | 汉威科技集团股份有限公司 | Smoke detection labyrinth |
-
2019
- 2019-04-19 CN CN201910317266.1A patent/CN109979155A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4857895A (en) * | 1987-08-31 | 1989-08-15 | Kaprelian Edward K | Combined scatter and light obscuration smoke detector |
| US20020153499A1 (en) * | 2001-04-19 | 2002-10-24 | Ulrich Oppelt | Scattered light smoke alarm |
| CN1680982A (en) * | 2004-04-06 | 2005-10-12 | 诺瓦尔有限公司 | Fire disaster identifying method and fire alarm therefor |
| CN1949285A (en) * | 2006-10-31 | 2007-04-18 | 中国科学技术大学 | Photoelectric smoke sensing fire detecting method and apparatus based on depolarization rate |
| CN200963473Y (en) * | 2006-10-31 | 2007-10-24 | 中国科学技术大学 | Photoelectric smoke-sensitive fire detecting device based on depolarization rate |
| CN101656011A (en) * | 2009-05-27 | 2010-02-24 | 北京奥腾讯达科技有限公司 | Universal smoke fire detector |
| CN101833840A (en) * | 2010-05-14 | 2010-09-15 | 公安部沈阳消防研究所 | Front/back scattering combined spot-type photoelectric smoke detector and detection method thereof |
| US20140168647A1 (en) * | 2012-12-18 | 2014-06-19 | Excelitas Canada, Inc. | Integrated smoke cell |
| CN109601019A (en) * | 2016-08-25 | 2019-04-09 | 西门子瑞士有限公司 | For carrying out the method for fire detection and such scattered light smoke warner according to scattering light principle, by for connecting different wave length alternately with the other LED unit for the other optical pulse strikes for scattering angular |
| CN209842824U (en) * | 2019-04-19 | 2019-12-24 | 汉威科技集团股份有限公司 | Smoke detection labyrinth |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110992638A (en) * | 2019-12-24 | 2020-04-10 | 无锡商业职业技术学院 | Calibration method and calibration device for smoke detector |
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