CN106290260B - Flue gas detection device - Google Patents
Flue gas detection device Download PDFInfo
- Publication number
- CN106290260B CN106290260B CN201610712156.1A CN201610712156A CN106290260B CN 106290260 B CN106290260 B CN 106290260B CN 201610712156 A CN201610712156 A CN 201610712156A CN 106290260 B CN106290260 B CN 106290260B
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- CN
- China
- Prior art keywords
- flue gas
- sampling
- channel
- smoke
- flue
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 title claims abstract description 97
- 239000003546 flue gas Substances 0.000 title claims abstract description 97
- 238000001514 detection method Methods 0.000 title claims abstract description 46
- 238000005070 sampling Methods 0.000 claims abstract description 92
- 239000000779 smoke Substances 0.000 claims abstract description 78
- 239000010410 layer Substances 0.000 claims description 12
- 230000031700 light absorption Effects 0.000 claims description 6
- 239000011229 interlayer Substances 0.000 claims description 3
- 230000001678 irradiating effect Effects 0.000 claims 1
- 230000002035 prolonged effect Effects 0.000 abstract description 3
- 230000009286 beneficial effect Effects 0.000 description 7
- 230000000694 effects Effects 0.000 description 3
- 238000009434 installation Methods 0.000 description 2
- 239000006233 lamp black Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000006096 absorbing agent Substances 0.000 description 1
- 238000010411 cooking Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 239000004071 soot Substances 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/17—Systems in which incident light is modified in accordance with the properties of the material investigated
- G01N21/47—Scattering, i.e. diffuse reflection
- G01N21/49—Scattering, i.e. diffuse reflection within a body or fluid
- G01N21/53—Scattering, i.e. diffuse reflection within a body or fluid within a flowing fluid, e.g. smoke
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24C—DOMESTIC STOVES OR RANGES ; DETAILS OF DOMESTIC STOVES OR RANGES, OF GENERAL APPLICATION
- F24C15/00—Details
- F24C15/20—Removing cooking fumes
- F24C15/2021—Arrangement or mounting of control or safety systems
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
- Y02A50/20—Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters
Abstract
The invention discloses a smoke detection device which is used for being arranged outside a flue and communicated with the inside of the flue through an opening on the flue, and comprises a shell, wherein a sampling smoke suction inlet, a sampling smoke travel channel, a sampling smoke outlet, a sampling fan used for sucking smoke in the flue to the sampling smoke suction inlet and leading out the smoke from the sampling smoke outlet after passing through the sampling smoke travel channel, and a photoelectric sensor module used for detecting the smoke concentration in the sampling smoke travel channel are arranged in the shell. The flue gas detection device is arranged outside the flue, is not easily affected by vibration of the wind wheel motor in the flue, and is convenient to install and replace; in addition, compared with the existing photoelectric sensor which is directly arranged in the flue, the photoelectric sensor module in the shell cannot be exposed in the flue, so that the detection accuracy of the photoelectric sensor module is ensured, and the service life of the photoelectric sensor module is prolonged.
Description
[ technical field ]
The invention relates to a smoke detection device.
[ background Art ]
In the use process of the existing household range hood on the market, the wind power of the range hood is required to be manually adjusted in a kitchen according to specific cooking content, so that the household range hood is not very convenient for users.
The existing smoke ventilator with the oil smoke detection function is generally provided with a naked sensor directly to detect the oil smoke condition, and has the following technical difficulties:
1. various smog gases are mixed differently, and very easy greasy dirt remains, and the oil smoke covers in whole sensor easily after using for a period to cause the degree of accuracy that detects to reduce, so, the user need often clean the sensor surface, and it is unfavorable for actual use.
2. In practice, the soot passing through the sensor may be a burst, which greatly increases the difficulty of detecting accuracy.
3. When the photoelectric sensor is used for detecting the lampblack, the inside of the cavity is directly provided with the transmitting unit and the reflecting unit which are easily affected due to irregular vibration of the wheel motor in the lampblack absorber, the transmitting unit and the reflecting unit are easily inconsistent in vibration, and the result deviation detected by the reflecting unit is easily caused to be very large.
Therefore, how to overcome the above-mentioned drawbacks has become an important issue to be solved by the person skilled in the art.
[ summary of the invention ]
The invention overcomes the defects of the technology, and provides the flue gas detection device which is of a single structure and is convenient to be integrally arranged on the outer wall of the flue after actual production and manufacture.
In order to achieve the above purpose, the present invention adopts the following technical scheme:
the utility model provides a flue gas detection device for install outside flue 101 and through trompil and flue 101 internal phase on flue 101, it is including casing 1, be equipped with sampling flue gas sunction inlet 2, sampling flue gas stroke passageway, sampling flue gas guiding out mouth 4 in the casing 1, be used for with in the flue 101 flue gas is inhaled to sampling flue gas sunction inlet 2 and pass behind the sampling flue gas stroke passageway follow sampling fan 5 that sampling flue gas guiding out mouth 4 was derived, and be used for detecting the photoelectric sensor module 6 of flue gas concentration in the sampling flue gas stroke passageway.
The above-mentioned a flue gas detection device, the photoelectric sensor module 6 includes the light emitter 61 used for emitting the light source to illuminate the flue gas in the sampling flue gas travel path and the light receiver 62 used for receiving the scattered light of the flue gas in the sampling flue gas travel path and converting the scattered light intensity information into the electric signal output, the light emitter mounting groove 11 and the light receiver mounting groove 12 which are vertically communicated with the sampling flue gas travel path are respectively arranged in the shell 1, the opening orientation of the light emitter mounting groove 11 is mutually perpendicular to the opening orientation of the light receiver mounting groove 12, the light emitter 61 is arranged in the light emitter mounting groove 11 and the emitting direction is perpendicular to the sampling flue gas travel path, and the light receiver 62 is arranged in the light receiver mounting groove 12 and the receiving direction is perpendicular to the sampling flue gas travel path.
In the above-mentioned smoke detection device, a light absorption groove 7 for absorbing transmitted light to prevent the transmitted light from being reflected back into the sampling smoke path is provided in the housing 1 on the other side of the sampling smoke path opposite to the light emitter mounting groove 11, and an inclined wall surface 71 for preventing the transmitted light from being reflected back into the sampling smoke path is provided in the light absorption groove 7.
The smoke detection device comprises a cavity section channel 31 for premixing smoke, a reciprocating flow guide section channel 32 for guiding smoke at a constant speed, a straight section detection channel 33 for detecting smoke by the photoelectric sensor module 6 and a smoke output section channel 34, wherein the cavity section channel 31 is communicated with the smoke suction inlet 2, and the smoke output section channel 34 is communicated with the smoke guide outlet 4.
In one of the above-mentioned flue gas detecting apparatuses, a temperature sensor 311 and a humidity sensor 312 are disposed in the chamber-type section channel 31.
The above-mentioned a flue gas detection device, the casing 1 is in a box shape, and has an upper layer structure and a lower layer structure therein, the cavity section channel 31 and the reciprocating type diversion section channel 32 are located in the same layer, the straight line section detection channel 33 and the flue gas output section channel 34 are located in another layer, and an interlayer connection section channel 35 is connected between the reciprocating type diversion section channel 32 and the straight line section detection channel 33.
In the flue gas detection device, the sampling fan 5 is arranged at the sampling flue gas outlet 4.
In the above-mentioned smoke detection device, a plurality of connecting lugs 13 extend from the outer wall of the housing 1, screw holes 131 are formed in the connecting lugs 13, and the housing 1 is fixed on the outer wall of the flue 101 by installing screws on the screw holes 131.
Compared with the prior art, the invention has the beneficial effects that:
1. the flue gas detection device is arranged outside the flue, is not easily affected by vibration of the wind wheel motor in the flue, and is convenient to install and replace; in addition, compared with the existing photoelectric sensor which is directly arranged in the flue, the photoelectric sensor module in the shell cannot be exposed in the flue, so that the detection accuracy of the photoelectric sensor module is ensured, and the service life of the photoelectric sensor module is prolonged.
2. The sampling smoke suction inlet, the sampling smoke travel channel, the sampling smoke outlet, the sampling fan and the photoelectric sensor module are all arranged in one shell, so that the device is convenient to be integrally installed on a flue after being assembled, and is convenient for the whole replacement of the device; in addition, under the condition that a sampling fan is not adopted, the speed of the flue gas outside the shell is reduced after the flue gas outside the shell enters the sampling flue gas suction inlet, the effect that the flue gas outside the shell continuously enters the sampling flue gas suction inlet is bad for the accuracy of detection of the photoelectric sensor module is achieved.
3. The light emitter and the light receiver are not directly arranged in the sampling smoke travel channel, but are respectively arranged in the light emitter mounting groove and the light receiver mounting groove which are vertically communicated with the sampling smoke travel channel, so that the light emitter and the light receiver are beneficial to not influencing the flow of smoke when detecting work, the stability of detection is beneficial to reducing the probability that the smoke covers the light emitter and the light receiver.
4. In specific implementation, the flue gas outside the shell may be a burst, so that in order to make the concentration of the sampled flue gas in the sampling flue gas travel channel consistent with the average concentration of the flue gas outside the shell, the flue gas is premixed uniformly through the front cavity type section channel, then the flue gas is guided uniformly through the reciprocating type guide section channel, the effect of the straight section detection channel is to facilitate the detection of the vertical emission and the receiving of the flue gas, and the flue gas is uniformly mixed and guided uniformly and then passes through the straight section detection channel, so that the data detected by the photoelectric sensor module can be changed smoothly to reflect the average concentration change of the flue gas flowing outside the shell.
[ description of the drawings ]
FIG. 1 is a schematic view of the installation of the present apparatus on a flue.
Fig. 2 is a perspective view of the present case.
Fig. 3 is a bottom view of fig. 2.
Fig. 4 is a cross-sectional view at A-A in fig. 3.
FIG. 5 is a cross-sectional view taken along line C-C of FIG. 3, with the dashed arrows indicating the flow direction of the flue gas in the straight-run detection channel.
Fig. 6 is a cross-sectional view taken at E-E in fig. 3.
Fig. 7 is an exploded view of the present case.
Detailed description of the preferred embodiments
The features of the invention and other related features are described in further detail below by way of example in conjunction with the following figures to facilitate understanding by those skilled in the art:
as shown in fig. 1-7, a flue gas detection device is used for being installed outside a flue 101 and communicating with the flue 101 through opening holes in the flue 101, and comprises a shell 1, wherein a sampling flue gas suction inlet 2, a sampling flue gas travel channel, a sampling flue gas outlet 4, a sampling fan 5 used for sucking flue gas in the flue 101 to the sampling flue gas suction inlet 2 and guiding out from the sampling flue gas outlet 4 after passing through the sampling flue gas travel channel, and a photoelectric sensor module 6 used for detecting the flue gas concentration in the sampling flue gas travel channel are arranged in the shell 1.
As described above, the working principle of the scheme is as follows:
during operation, the sampling fan 5 sucks the flue gas in the flue 101 to the sampling flue gas suction inlet 2, and the flue gas is guided out from the sampling flue gas guiding outlet 4 after passing through the sampling flue gas travel channel, and in this process, the photoelectric sensor module 6 detects the flue gas concentration.
As described above, the flue gas detection device is arranged outside the flue 101, is not easily affected by the vibration of the wind wheel motor in the flue 101, and is convenient to install and replace; in addition, compared with the existing photoelectric sensor which is directly arranged in the flue 101, the photoelectric sensor module 6 in the shell 1 is not exposed in the flue 101, so that the detection accuracy of the photoelectric sensor module 6 is ensured, and the service life of the photoelectric sensor module 6 is prolonged.
As described above, the sampling smoke suction inlet 2, the sampling smoke travel channel, the sampling smoke outlet 4, the sampling fan 5 and the photoelectric sensor module 6 are all arranged in the shell 1, so that the device is convenient to be assembled and then integrally installed on the flue 101, and the whole replacement of the device is convenient; in addition, under the condition that the sampling fan 5 is not provided, the speed of the flue gas outside the shell 1 is reduced after the flue gas enters the sampling flue gas suction inlet 2, which affects the follow-up entering of the flue gas outside the shell 1, and is not beneficial to the accuracy of the detection of the photoelectric sensor module 6.
As described above, in the embodiment, the photoelectric sensor module 6 includes the light emitter 61 for emitting light source to irradiate the smoke in the sampling smoke path and the light receiver 62 for receiving the scattered light of the smoke in the sampling smoke path and converting the scattered light intensity information into the electric signal output, the light emitter mounting groove 11 and the light receiver mounting groove 12 are respectively provided in the housing 1, which are vertically communicated with the sampling smoke path, the light emitter mounting groove 11 is oriented to be mutually perpendicular to the light receiver mounting groove 12, the light emitter 61 is mounted in the light emitter mounting groove 11 and the emitting direction is perpendicular to the sampling smoke path, the light receiver 62 is mounted in the light receiver mounting groove 12 and the receiving direction is perpendicular to the sampling smoke path, so that the light emitter 61 and the light receiver 62 are not directly provided in the sampling smoke path but are respectively provided in the light emitter mounting groove 11 and the light receiver mounting groove 12 which are vertically communicated with the sampling smoke path, which is beneficial to the light emitter 61 and the light receiver 62 do not affect the flow during the detection operation, the stability of the detection is beneficial, and the probability of covering the smoke to the light emitter 61 and the light receiver 62 is beneficial to be reduced.
As described above, in the embodiment, the light absorption groove 7 for absorbing the transmitted light to prevent the transmitted light from being reflected back into the sampling smoke path is provided in the housing 1 at the other side of the sampling smoke path opposite to the light emitter mounting groove 11, and the inclined wall surface 71 for preventing the transmitted light from being reflected back into the sampling smoke path is provided in the light absorption groove 7, so that the interference of the transmitted light is eliminated.
As described above, in the embodiment, the sampling smoke travel channel includes a cavity-type segment channel 31 for premixing smoke, a reciprocating-type flow guide segment channel 32 for guiding smoke at a uniform speed, a straight-going segment detection channel 33 for detecting smoke by the photoelectric sensor module 6, and a smoke output segment channel 34, which are sequentially communicated, the cavity-type segment channel 31 is communicated with the sampling smoke suction inlet 2, and the smoke output segment channel 34 is communicated with the sampling smoke outlet 4.
As described above, in a specific implementation, the flue gas outside the housing 1 may be a burst, so that in order to make the concentration of the sampled flue gas in the sampling flue gas travel channel consistent with the average concentration of the flue gas outside the housing 1, the flue gas is premixed uniformly through the front cavity section channel 31, then the flue gas is guided uniformly through the reciprocating guiding section channel 32, the effect of the straight section detection channel 33 is to facilitate the straight flue gas and the vertical emission and the detection of the photoelectric sensor module 6, and the flue gas is guided uniformly and uniformly, and then passes through the straight section detection channel 33, so that the data detected by the photoelectric sensor module 6 can be changed smoothly, so as to reflect the average concentration change of the flue gas flowing outside the housing 1.
As described above, in the embodiment, the cavity-type segment channel 31 is provided with a temperature sensor 311 and a humidity sensor 312.
As described above, in the embodiment, the casing 1 is in a box shape, and has an upper layer structure and a lower layer structure therein, the cavity-type section channel 31 and the reciprocating-type flow-guiding section channel 32 are located in the same layer, the straight-running section detecting channel 33 and the smoke output section channel 34 are located in another layer, and an interlayer connecting section channel 35 is connected between the reciprocating-type flow-guiding section channel 32 and the straight-running section detecting channel 33, so that compact and effective smoke flow guiding is conveniently performed in the limited internal space of the casing 1.
As described above, in the specific implementation, the sampling fan 5 is disposed at the sampling flue gas outlet 4, so that the installation of the sampling fan 5 with a larger volume is facilitated.
As described above, in the specific implementation, the outer wall of the housing 1 is extended with a plurality of connection lugs 13, the connection lugs 13 are provided with screw holes 131, and the housing 1 is fixed on the outer wall of the flue 101 by installing screws on the screw holes 131.
As described above, the present disclosure protects a smoke detection device, and all technical schemes which are the same as or similar to the structure of the present disclosure should be shown as falling within the protection scope of the present disclosure.
Claims (4)
1. A flue gas detection device, characterized in that the flue gas detection device is used for being installed outside a flue gas channel (101) and is communicated with the flue gas channel (101) through a hole formed in the flue gas channel (101), the flue gas detection device comprises a shell (1), a sampling flue gas suction inlet (2), a sampling flue gas travel channel, a sampling flue gas outlet (4), a sampling fan (5) used for sucking flue gas in the flue gas channel (101) to the sampling flue gas suction inlet (2) and passing through the sampling flue gas travel channel and then leading out from the sampling flue gas outlet (4), and a photoelectric sensor module (6) used for detecting the concentration of flue gas in the sampling flue gas travel channel, wherein the photoelectric sensor module (6) comprises a light emitter (61) used for emitting light sources for irradiating the flue gas in the sampling flue gas travel channel and a light receiver (62) used for receiving scattered light of the flue gas in the sampling flue gas travel channel and converting scattered light intensity information into electric signals to be output, a light emitter mounting groove (11) and a light receiver mounting groove (12) which are respectively arranged in the shell (1) and are vertically communicated with the sampling flue gas travel channel, the light emitter mounting groove (11) and the light receiver mounting groove (12) are vertically oriented to the light emitter mounting groove (61) in the direction perpendicular to the sampling passage (61), the light receiver (62) is arranged in the light receiver mounting groove (12) and the receiving direction is perpendicular to the sampling smoke travel channel, the sampling smoke travel channel comprises a cavity section channel (31) for premixing smoke, a reciprocating flow guide section channel (32) for guiding smoke at a uniform speed, a straight section detection channel (33) for detecting smoke by the photoelectric sensor module (6) and a smoke output section channel (34), the cavity section channel (31) is communicated with the sampling smoke suction inlet (2), and the smoke output section channel (34) is communicated with the sampling smoke guide outlet (4);
the shell (1) is in a box shape, an upper layer structure and a lower layer structure are arranged in the shell, the cavity type section channel (31) and the reciprocating type flow guide section channel (32) are positioned in the same layer, the straight section detection channel (33) and the smoke output section channel (34) are positioned in the other layer, and an interlayer connection section channel (35) is connected between the reciprocating type flow guide section channel (32) and the straight section detection channel (33);
the light absorption groove (7) is arranged in the shell (1) at the other side of the sampling smoke travel channel opposite to the light emitter mounting groove (11) and used for absorbing the transmitted light to prevent the transmitted light from being reflected back into the sampling smoke travel channel, and an inclined wall surface (71) is arranged in the light absorption groove (7) and used for preventing the transmitted light from being reflected back into the sampling smoke travel channel.
2. A smoke detection device according to claim 1, characterised in that a temperature sensor (311) and a humidity sensor (312) are provided in the chamber-type section channel (31).
3. A flue gas detection device according to any one of claims 1-2, characterized in that the sampling fan (5) is arranged at the sampling flue gas outlet (4).
4. A smoke detection device according to any one of claims 1-2, characterised in that a number of connection lugs (13) extend from the outer wall of the housing (1), said connection lugs (13) being provided with screw holes (131), the housing (1) being fastened to the outer wall of the flue (101) by means of mounting screws in said screw holes (131).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610712156.1A CN106290260B (en) | 2016-08-24 | 2016-08-24 | Flue gas detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610712156.1A CN106290260B (en) | 2016-08-24 | 2016-08-24 | Flue gas detection device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106290260A CN106290260A (en) | 2017-01-04 |
| CN106290260B true CN106290260B (en) | 2023-07-28 |
Family
ID=57616015
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610712156.1A Active CN106290260B (en) | 2016-08-24 | 2016-08-24 | Flue gas detection device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106290260B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP7045348B2 (en) * | 2019-05-21 | 2022-03-31 | Ckd株式会社 | Filter device |
| CN110608984A (en) * | 2019-09-25 | 2019-12-24 | 佛山市顺德区美的洗涤电器制造有限公司 | Oil smoke detection component and kitchen appliance |
| CN111631613B (en) * | 2020-05-14 | 2022-05-20 | 华帝股份有限公司 | Cooking equipment with absolute humidity sensor and control method thereof |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100557408C (en) * | 2007-10-08 | 2009-11-04 | 西安电子科技大学 | Fume emission on-line continuous detecting system sampling apparatus |
| JP5579899B2 (en) * | 2013-05-22 | 2014-08-27 | 能美防災株式会社 | Photoelectric smoke detector |
| CN203894139U (en) * | 2014-05-30 | 2014-10-22 | 宁波方太厨具有限公司 | Cooking fume particle testing device of extractor hood |
| CN105444238A (en) * | 2016-01-07 | 2016-03-30 | 深圳市天环通科技有限公司 | Laser oil fume sensing device and oil fume detecting method thereof |
| CN205384206U (en) * | 2016-01-29 | 2016-07-13 | 中绿环保科技股份有限公司 | Extraction formula low concentration dust meter |
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2016
- 2016-08-24 CN CN201610712156.1A patent/CN106290260B/en active Active
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| CN106290260A (en) | 2017-01-04 |
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