CN105299719A - Smoke exhauster as well as smoke detection method and wind speed adjusting method thereof - Google Patents
Smoke exhauster as well as smoke detection method and wind speed adjusting method thereof Download PDFInfo
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- CN105299719A CN105299719A CN201410600639.3A CN201410600639A CN105299719A CN 105299719 A CN105299719 A CN 105299719A CN 201410600639 A CN201410600639 A CN 201410600639A CN 105299719 A CN105299719 A CN 105299719A
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Abstract
The invention discloses smoke concentration detection method for a smoke exhauster. The method comprises the steps that the intensity of light which comes from a determined light source and passes through an oil smoke area is detected, and the smoke concentration at the oil smoke area and/or the smoke concentration change trend are/is determined. The invention further discloses a wind speed automatic adjusting method for the smoke exhauster. The method comprises the step that the intensity/or the intensity change trend of the light which comes from the determined light source and passes through the oil smoke area of the smoke exhauster is detected. The invention also discloses the smoke exhauster which is capable of automatically adjusting the wind speed. A light emitter and a light receiver are correspondingly arranged on two opposite side walls of the smoke exhauster, so that the light which is emitted by the light emitter and passes through the oil smoke area of the smoke exhauster can be received by the light receiver. According to the smoke exhauster which is capable of automatically adjusting the wind speed, the wind speed of a fan can be automatically adjusted; the operation is convenient; and while the smoke pollution in a kitchen is fully avoided, an energy-saving effect can also be realized.
Description
Technical field
The present invention relates to a kind of smoke exhaust ventilator and cigarette vapour detection method thereof and wind speed control method.
Background technology
The composition of kitchen fume is very complicated, mainly contains water, aldehyde, ketone, alcohol etc., comprising the known mutagenesis such as volatile nitrosamine, heterocyclic amine compound, carcinogenic substance and tar, carbon monoxide and carbon dioxide etc.Existing harmful health, pollutes Kitchen hygiene environment again, must extract in time.
The wind speed size of conventional extraction hood needs artificial adjustment, there is inadequate science accurate, extract oil smoke and meet health requirements not, and often open switch for fume exhauster because forget in gastronomical process or need to regulate smoke exhaust ventilator to cause the inconvenient phenomenons such as in a rush.
Summary of the invention
A kind of smoke exhaust ventilator and mensuration cigarette vapour thereof is the object of the present invention is to provide to detect and wind speed control method, it can detect the cigarette such as kitchen fume and water vapour vapour concentration automatically, and according to the concentration of actual cigarette vapour or with or without the blower fan wind speed controlling smoke exhaust ventilator, Based Intelligent Control smoke exhaust ventilator works, and reaches the object in purification kitchen.
As one aspect of the present invention, relate to a kind of smoke exhaust ventilator smokescope assay method, described method comprises detection from determining light source, through the light intensity in oil smoke district, judges the step of oil smoke district cigarette vapour concentration and/or cigarette vapour change in concentration trend.
Described light can be IR or laser beam.
As another aspect of the present invention, relate to a kind of smoke exhaust ventilator wind speed Automatic adjustment method, described method comprises detection from determining light source, through the described light intensity in smoke exhaust ventilator oil smoke district or the step of its variation tendency.According to detect from determining light source, through light intensity or its variation tendency in described smoke exhaust ventilator oil smoke district, smoke exhaust ventilator wind speed is regulated.
Described method can also comprise, according to detect from determining light source, through light intensity or its variation tendency in described smoke exhaust ventilator oil smoke district, judge the step of cigarette vapour concentration and/or cigarette vapour change in concentration trend.According to this cigarette vapour concentration and/or cigarette vapour change in concentration trend, to the step that smoke exhaust ventilator wind speed regulates.
Describedly determine that light source can be infrared light supply or LASER Light Source.Described infrared light emission spectral region 600 wave numbers/centimetre-4000 wave numbers/centimetre time, strong to the penetration power of oil smoke district cigarette vapour, testing result is more stable and reliable.
Specifically, described smoke exhaust ventilator wind speed Automatic adjustment method, comprises the steps:
Light emitters is towards oil smoke district emission of light;
Light receiver receives light emitters and launches and pass the light in described oil smoke district;
According to intensity and/or the variation trends of described light receiver received light line, regulate the wind speed of smoke exhaust ventilator, or, according to intensity and/or the variation trends of described light receiver received light line, judge oil smoke district cigarette vapour concentration and/or cigarette vapour change in concentration trend, and then according to judged oil smoke district cigarette vapour concentration and/or cigarette vapour change in concentration trend, regulate the wind speed of smoke exhaust ventilator.
More specifically, according to intensity and/or the variation trends of described light receiver received light line, judge that oil smoke district cigarette vapour concentration and/or cigarette vapour change in concentration trend refer to, the intensity of light receiver received light line and the mapping table of cigarette vapour concentration is preset in smoke exhaust ventilator, and/or the mapping table of difference between the intensity of the intensity of described reception light and the light emitted line of light emitters and cigarette vapour change in concentration relation, according to the intensity of light receiver received light line, or the difference between the intensity of the intensity of described reception light and the light emitted line of light emitters, utilize the concentration of the mapping table determination cigarette vapour preset.
More specifically, the described intensity according to described light receiver received light line and/or variation trends, regulate the wind speed of smoke exhaust ventilator to refer to, if the change of this light intensity is within the scope of the difference threshold of setting and/or in light intensity threshold range, then keep rotation speed of fan constant; If this light intensity is lower than the light intensity threshold value of setting, and/or the value of this light intensity reduction is greater than the difference threshold of setting, then increase rotation speed of fan; If this light intensity is greater than the light intensity threshold value of setting, and/or the value of this light intensity increase is greater than the difference threshold of setting, then reduce rotation speed of fan.
More specifically, described according to judged oil smoke district cigarette vapour concentration and/or cigarette vapour change in concentration trend, the wind speed of smoke exhaust ventilator is regulated to refer to, if the change of the oil smoke district cigarette vapour concentration judged is within the scope of the difference threshold of setting, and/or within the scope of cigarette vapour concentration threshold, then keep rotation speed of fan constant; If the oil smoke district cigarette vapour concentration judged is lower than the cigarette vapour concentration threshold of setting, and/or the value of this cigarette vapour concentration reduction is greater than the difference threshold of setting, then reduce rotation speed of fan; If the oil smoke district cigarette vapour concentration judged is greater than the cigarette vapour concentration threshold of setting, and/or the value of this cigarette vapour concentration increase is greater than the difference threshold of setting, then increase rotation speed of fan.
Described increase rotation speed of fan can be instant increase also can be postpone to increase; Described reduction can be instant reduction, also can be to postpone to reduce.
As the 3rd aspect of the present invention, relate to a kind of smoke exhaust ventilator of automatic adjustment wind speed, the two opposite sides correspondence of described smoke exhaust ventilator is provided with light emitters and light receiver, can receive described light emitters send and the light passing smoke exhaust ventilator oil smoke district to make described light receiver.
Described light emitters can be infrared transmitter or generating laser.
Described light emitters and the preferred correspondence of light receiver are arranged at the described smoke exhaust ventilator left and right sides.Described smoke exhaust ventilator left and right sides wall can arrange accommodation hole respectively, and described light emitters and described light receiver are contained in described accommodation hole respectively.
Further, described smoke exhaust ventilator is also provided with controller of fan, and described air-blower control machine, according to received light intensity or light intensity variation tendency or cigarette vapour concentration or cigarette vapour change in concentration trend signal, sends control instruction to fume exhaust fan blower.
After adopting such scheme, the present invention at least can realize following beneficial effect:
1, when the light of light emitters transmitting is through oil smoke district, energy is absorbed, received by light receiver after scattering, by transmitting and receiving the energy value change of light, concentration and the variation tendency thereof of cigarette vapour can be recorded, thus control blower fan wind speed, realize the work of Based Intelligent Control smoke exhaust ventilator, reach the object in purification kitchen;
2, infrared transmitter is adopted, and the spectral region making it launch 600 wave numbers/centimetre-4000 wave numbers/centimetre, and the main component of kitchen cigarette vapour 3000 wave numbers/centimetre region of ultra-red have absworption peak, light transmittance is low, and therefore like this design more can accurately measure smokescope;
3, by arranging accommodation hole in center, smoke collecting chamber one side, make transmitter and receiver be mounted in accommodation hole, such project organization is simple, is easy to install.
4, by the automatic adjustment of wind speed, from the power consumption of smoke exhaust ventilator and gas consumption two aspects of gas-cooker, energy-conservation object is all achieved.
Accompanying drawing explanation
Fig. 1 is the decomposition texture schematic diagram of the present invention with the smoke exhaust ventilator of cigarette regulation and control wind speed.
1 is light emitters; 2 is light receiver; 3 is accommodation hole.
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, the invention will be further described, can better understand the present invention and can be implemented, but illustrated embodiment is not as a limitation of the invention to make those skilled in the art.
As shown in Figure 1, the present embodiment provide and automatically regulate the smoke exhaust ventilator of wind speed to be respectively arranged with accommodation hole 3 at smoke collecting chamber left and right sides wall, light emitters 1 and light receiver 2 are contained in accommodation hole 3 respectively.Described light receiver can receive described light emitters and send and the light passing smoke exhaust ventilator oil smoke district.
This light emitters can be infrared transmitter, also can be generating laser.Corresponding, this light receiver can be infrared light receiver, also can be laser pickoff.
Smoke exhaust ventilator that the present embodiment provides, the smoke exhaust ventilator cigarette vapour detection method adopted is, light emitters launches infrared light or laser towards oil smoke district, by detecting from this light emitters, and through the infrared light in oil smoke district or the light intensity of laser or its variation tendency, judge oil smoke district cigarette vapour concentration and/or cigarette vapour change in concentration trend.
The smoke exhaust ventilator wind speed Automatic adjustment method that the present embodiment adopts is:
Light emitters is towards oil smoke district emission of light;
Light receiver receives light emitters and launches and pass the light in described oil smoke district;
According to intensity and/or the variation trends of described light receiver received light line, regulate the wind speed of smoke exhaust ventilator, or, according to intensity and/or the variation trends of described light receiver received light line, judge oil smoke district cigarette vapour concentration and/or cigarette vapour change in concentration trend, and then according to judged oil smoke district cigarette vapour concentration and/or cigarette vapour change in concentration trend, regulate the wind speed of smoke exhaust ventilator.
If the change of received light line strength is within the scope of the difference threshold of setting and/or in light intensity threshold range, then keep rotation speed of fan constant; If received light line strength is lower than the light intensity threshold value of setting, and/or the value of received light line strength reduction is greater than the difference threshold of setting, illustrates that the cigarette vapour concentration in oil smoke district becomes large, then increase rotation speed of fan, to take the cigarette vapour in oil smoke district away as far as possible, prevent kitchen pollution; If received light line strength is greater than the light intensity threshold value of setting, and/or the value of received light line strength increase is greater than the difference threshold of setting, illustrate that the cigarette vapour concentration in oil smoke district diminishes, then reduce rotation speed of fan, while reduction fan energy consumption, reduce blower fan exhausting to the impact of combustion gas utilization ratio.
Smoke exhaust ventilator that the present embodiment provides, the intensity of light receiver received light line and the mapping table of cigarette vapour concentration can be preset in smoke exhaust ventilator, and/or the mapping table of difference between the intensity of the intensity of described reception light and the light emitted line of light emitters and cigarette vapour change in concentration relation, according to the intensity of light receiver received light line, or the difference between the intensity of the intensity of described reception light and the light emitted line of light emitters, utilize the mapping table preset, concentration and its variation tendency of cigarette vapour can be determined.
If the change of the oil smoke district cigarette vapour concentration judged is within the scope of the difference threshold of setting, and/or within the scope of cigarette vapour concentration threshold, then keep rotation speed of fan constant; If the oil smoke district cigarette vapour concentration judged is lower than the cigarette vapour concentration threshold of setting, and/or the value of this cigarette vapour concentration reduction is greater than the difference threshold of setting, then reduce rotation speed of fan, while reduction fan energy consumption, reduces blower fan exhausting to the impact of combustion gas utilization ratio; If the oil smoke district cigarette vapour concentration judged is greater than the cigarette vapour concentration threshold of setting, and/or the value of this cigarette vapour concentration increase is greater than the difference threshold of setting, then increase rotation speed of fan, to take the cigarette vapour in oil smoke district away as far as possible, prevent kitchen pollution.
Described increase rotation speed of fan can be instant increase also can be postpone to increase; Described reduction can be instant reduction, also can be to postpone to reduce.Use delay feature, motor frequent start-stop and speed change can be prevented, cause the damage of motor.
Described infrared light emission spectral region 600 wave numbers/centimetre-4000 wave numbers/centimetre time, strong to the penetration power of oil smoke district cigarette vapour, testing result is more stable and reliable.
Light receiver received light line strength of the present invention, when the output signal of used light receiver is for current value, both can directly represent with exported current value, also can be the corresponding table that a light receiver output current and received light line strength are set, and obtain received light intensity value according to this corresponding table.That is, the light intensity alleged by the present invention or its variation tendency, both can refer to the current value that light receiver exports, and also can refer to according to the determined light intensity of this current value.Same, the alleged process obtaining oil smoke district cigarette vapour concentration or its variation tendency according to light receiver received light line strength of the present invention, both can be that the current value directly utilizing light receiver to export is determined, also can be utilize determined light intensity value to determine.
Smoke exhaust ventilator that the present embodiment provides, inside can be provided with light signal processing module and fan control module.After light receiver receives light signal, its received light line signal is sent to the light signal processing module of smoke extractor, this light signal processing module according to it in a period of time, in such as 2 seconds, the light intensity value of the multiple light received (both can be represent with the current value that light receiver exports, also can represent with the light intensity value after converting), draw the change in concentration trend of oil smoke district cigarette vapour, and sent to fan control module, fan control module is according to the change in concentration trend of oil smoke district oil smoke, the wind speed of adjustment fume exhaust fan blower.If oil smoke district cigarette vapour concentration in increase, then improves the blower fan wind speed of smoke exhaust ventilator; If oil smoke district cigarette vapour concentration in reduction, then reduces the blower fan wind speed of smoke exhaust ventilator; If oil smoke district cigarette vapour concentration is basicly stable, then the blower fan wind speed maintaining smoke exhaust ventilator is constant.Or, the intensity of light receiver received light line and the corresponding table of cigarette vapour concentration can be preset in light signal processing module, or difference between the intensity of described reception light and the intensity of the light emitted line of light emitters and the corresponding table between cigarette vapour concentration.After light receiver receives the light that light emitters launches, its received light line signal is sent to the light signal processing module of smoke extractor, light signal processing module can according to the intensity of received light line, or the difference between the intensity of the intensity of described reception light and the light emitted line of light emitters, determines concentration or its variation tendency of cigarette vapour in the correspondence table preset.This concentration or variation tendency are transmitted to fan control module, and the blower fan of smoke exhaust ventilator, according to this cigarette vapour concentration or its variation tendency, is adjusted to corresponding wind speed by fan control module.
Described light signal processing module can be placed in described light receiver, processes, and result is sent to fan control module to received light signal.Described fan control module can be placed in controller of fan, and air-blower control machine, according to received light intensity or light intensity variation tendency or cigarette vapour concentration or cigarette vapour change in concentration trend signal, sends control instruction to fume exhaust fan blower.
The above embodiment is only that protection scope of the present invention is not limited thereto in order to absolutely prove the preferred embodiment that the present invention lifts.The equivalent alternative or conversion that those skilled in the art do on basis of the present invention, all within protection scope of the present invention.Protection scope of the present invention is as the criterion with claims.
Claims (19)
1. a smoke exhaust ventilator smokescope assay method, is characterized in that, described method comprises detection from determining light source, through the light intensity in oil smoke district, judges the step of oil smoke district cigarette vapour concentration and/or cigarette vapour change in concentration trend.
2. smoke exhaust ventilator smokescope assay method described in claim 1, is characterized in that, described light is IR or laser beam.
3. a smoke exhaust ventilator wind speed Automatic adjustment method, is characterized in that, described method comprises detection from determining light source, through the described light intensity in smoke exhaust ventilator oil smoke district or the step of its variation tendency.
4. smoke exhaust ventilator wind speed Automatic adjustment method described in claim 3, it is characterized in that, described method also comprise according to detect from determining light source, through light intensity or its variation tendency in described smoke exhaust ventilator oil smoke district, to the step that smoke exhaust ventilator wind speed regulates.
5. smoke exhaust ventilator wind speed Automatic adjustment method described in claim 3, it is characterized in that, described method also comprises, according to detect from determining light source, through light intensity or its variation tendency in described smoke exhaust ventilator oil smoke district, judge the step of cigarette vapour concentration and/or cigarette vapour change in concentration trend.
6. smoke exhaust ventilator wind speed Automatic adjustment method described in claim 5, is characterized in that, described method also comprises according to this cigarette vapour concentration and/or cigarette vapour change in concentration trend, to the step that smoke exhaust ventilator wind speed regulates.
7. smoke exhaust ventilator wind speed Automatic adjustment method described in claim 3, is characterized in that, describedly determines that light source is infrared light supply or LASER Light Source.
8. smoke exhaust ventilator wind speed Automatic adjustment method described in claim 7, is characterized in that, described infrared light emission spectral region 600 wave numbers/centimetre to 4000 wave numbers/centimetre.
9. smoke exhaust ventilator wind speed Automatic adjustment method described in any one of claim 3-8, it is characterized in that, described method comprises the steps:
Light emitters is towards oil smoke district emission of light;
Light receiver receives light emitters and launches and pass the light in described oil smoke district;
According to intensity and/or the variation trends of described light receiver received light line, regulate the wind speed of smoke exhaust ventilator,
Or, according to intensity and/or the variation trends of described light receiver received light line, judge oil smoke district cigarette vapour concentration and/or cigarette vapour change in concentration trend, and then according to judged oil smoke district cigarette vapour concentration and/or cigarette vapour change in concentration trend, regulate the wind speed of smoke exhaust ventilator.
10. smoke exhaust ventilator wind speed Automatic adjustment method described in claim 9, is characterized in that, according to intensity and/or the variation trends of described light receiver received light line, judges that oil smoke district cigarette vapour concentration and/or cigarette vapour change in concentration trend refer to,
The intensity of light receiver received light line and the mapping table of cigarette vapour concentration is preset in smoke exhaust ventilator, and/or the mapping table of difference between the intensity of the intensity of described reception light and the light emitted line of light emitters and cigarette vapour change in concentration relation,
According to the intensity of light receiver received light line, or the difference between the intensity of the intensity of described reception light and the light emitted line of light emitters, utilize the concentration of the mapping table determination cigarette vapour preset.
Described in 11. claims 9, smoke exhaust ventilator wind speed Automatic adjustment method, is characterized in that, the described intensity according to described light receiver received light line and/or variation trends, regulates the wind speed of smoke exhaust ventilator to refer to,
If the change of this light intensity is within the scope of the difference threshold of setting and/or in light intensity threshold range, then keep rotation speed of fan constant;
If this light intensity is lower than the light intensity threshold value of setting, and/or the value of this light intensity reduction is greater than the difference threshold of setting, then increase rotation speed of fan;
If this light intensity is greater than the light intensity threshold value of setting, and/or the value of this light intensity increase is greater than the difference threshold of setting, then reduce rotation speed of fan.
Described in 12. claims 11, smoke exhaust ventilator regulates the method for wind speed automatically, it is characterized in that, described increase rotation speed of fan can be instant increase also can be postpone to increase; Described reduction can be instant reduction, also can be to postpone to reduce.
Described in 13. claims 9, smoke exhaust ventilator wind speed Automatic adjustment method, is characterized in that, described according to judged oil smoke district cigarette vapour concentration and/or cigarette vapour change in concentration trend, regulates the wind speed of smoke exhaust ventilator to refer to,
If the change of the oil smoke district cigarette vapour concentration judged is within the scope of the difference threshold of setting, and/or within the scope of cigarette vapour concentration threshold, then keep rotation speed of fan constant;
If the oil smoke district cigarette vapour concentration judged is lower than the cigarette vapour concentration threshold of setting, and/or the value of this cigarette vapour concentration reduction is greater than the difference threshold of setting, then reduce rotation speed of fan;
If the oil smoke district cigarette vapour concentration judged is greater than the cigarette vapour concentration threshold of setting, and/or the value of this cigarette vapour concentration increase is greater than the difference threshold of setting, then increase rotation speed of fan.
Described in 14. claims 13, smoke exhaust ventilator regulates the method for wind speed automatically, it is characterized in that, described increase rotation speed of fan can be instant increase also can be postpone to increase; Described reduction can be instant reduction, also can be to postpone to reduce.
15. 1 kinds of automatic smoke exhaust ventilators regulating wind speed, it is characterized in that, the two opposite sides correspondence of described smoke exhaust ventilator is provided with light emitters and light receiver, can receive described light emitters send and the light passing smoke exhaust ventilator oil smoke district to make described light receiver.
Automatically regulate the smoke exhaust ventilator of wind speed described in 16. claims 15, it is characterized in that, described light emitters is infrared transmitter or generating laser.
Automatically regulate the smoke exhaust ventilator of wind speed described in 17. claims 15, it is characterized in that, described light emitters and light receiver correspondence are arranged at the described smoke exhaust ventilator left and right sides.
Automatically regulate the smoke exhaust ventilator of wind speed described in 18. claims 17, it is characterized in that, described smoke exhaust ventilator left and right sides wall arranges accommodation hole respectively, and described light emitters and described light receiver are contained in described accommodation hole respectively.
Automatically the smoke exhaust ventilator of wind speed is regulated described in 19. claims 15, it is characterized in that, described smoke exhaust ventilator is also provided with controller of fan, described air-blower control machine, according to received light intensity or light intensity variation tendency or cigarette vapour concentration or cigarette vapour change in concentration trend signal, sends control instruction to fume exhaust fan blower.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410600639.3A CN105299719A (en) | 2014-08-01 | 2014-10-31 | Smoke exhauster as well as smoke detection method and wind speed adjusting method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2014103756805 | 2014-08-01 | ||
| CN201410375680 | 2014-08-01 | ||
| CN201410600639.3A CN105299719A (en) | 2014-08-01 | 2014-10-31 | Smoke exhauster as well as smoke detection method and wind speed adjusting method thereof |
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| CN105299719A true CN105299719A (en) | 2016-02-03 |
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| CN201410600325.3A Pending CN105318384A (en) | 2014-08-01 | 2014-10-31 | Range hood and wind speed regulating system and method thereof |
| CN201410600026.XA Active CN105318379B (en) | 2014-08-01 | 2014-10-31 | Smoke exhaust ventilator and its cigarette vapour detection method and wind speed adjusting method |
| CN201410600344.6A Pending CN105318385A (en) | 2014-08-01 | 2014-10-31 | Wind speed regulating system and method for range hood |
| CN201410600639.3A Pending CN105299719A (en) | 2014-08-01 | 2014-10-31 | Smoke exhauster as well as smoke detection method and wind speed adjusting method thereof |
| CN201410600027.4A Pending CN105318380A (en) | 2014-08-01 | 2014-10-31 | Range hood and lampblack detection method and wind speed regulating method of range hood |
| CN201410600043.3A Pending CN105299717A (en) | 2014-08-01 | 2014-10-31 | Smoke exhauster capable of automatically adjusting wind speed |
| CN201410600047.1A Pending CN105318382A (en) | 2014-08-01 | 2014-10-31 | Range hood capable of regulating wind speed automatically |
| CN201410600031.0A Pending CN105299716A (en) | 2014-08-01 | 2014-10-31 | Smoke exhauster as well as smoke detection method and wind speed adjusting method thereof |
| CN201410600345.0A Pending CN105318386A (en) | 2014-08-01 | 2014-10-31 | Range hood capable of regulating wind speed automatically |
| CN201410600029.3A Active CN105318381B (en) | 2014-08-01 | 2014-10-31 | Automatic speed regulation smoke exhaust ventilator self-checking system and self checking method |
| CN201410600324.9A Pending CN105299718A (en) | 2014-08-01 | 2014-10-31 | Smoke exhauster capable of automatically adjusting wind speed |
| CN201410600112.0A Active CN105318383B (en) | 2014-08-01 | 2014-10-31 | Smoke exhaust ventilator and its cigarette vapour detection method and wind speed adjusting method |
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| CN201410600026.XA Active CN105318379B (en) | 2014-08-01 | 2014-10-31 | Smoke exhaust ventilator and its cigarette vapour detection method and wind speed adjusting method |
| CN201410600344.6A Pending CN105318385A (en) | 2014-08-01 | 2014-10-31 | Wind speed regulating system and method for range hood |
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| CN201410600027.4A Pending CN105318380A (en) | 2014-08-01 | 2014-10-31 | Range hood and lampblack detection method and wind speed regulating method of range hood |
| CN201410600043.3A Pending CN105299717A (en) | 2014-08-01 | 2014-10-31 | Smoke exhauster capable of automatically adjusting wind speed |
| CN201410600047.1A Pending CN105318382A (en) | 2014-08-01 | 2014-10-31 | Range hood capable of regulating wind speed automatically |
| CN201410600031.0A Pending CN105299716A (en) | 2014-08-01 | 2014-10-31 | Smoke exhauster as well as smoke detection method and wind speed adjusting method thereof |
| CN201410600345.0A Pending CN105318386A (en) | 2014-08-01 | 2014-10-31 | Range hood capable of regulating wind speed automatically |
| CN201410600029.3A Active CN105318381B (en) | 2014-08-01 | 2014-10-31 | Automatic speed regulation smoke exhaust ventilator self-checking system and self checking method |
| CN201410600324.9A Pending CN105299718A (en) | 2014-08-01 | 2014-10-31 | Smoke exhauster capable of automatically adjusting wind speed |
| CN201410600112.0A Active CN105318383B (en) | 2014-08-01 | 2014-10-31 | Smoke exhaust ventilator and its cigarette vapour detection method and wind speed adjusting method |
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Also Published As
| Publication number | Publication date |
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| CN105299717A (en) | 2016-02-03 |
| CN105318386A (en) | 2016-02-10 |
| CN105318383B (en) | 2019-08-09 |
| CN105299718A (en) | 2016-02-03 |
| CN105318380A (en) | 2016-02-10 |
| CN105318382A (en) | 2016-02-10 |
| CN105318381A (en) | 2016-02-10 |
| CN105318379B (en) | 2019-05-07 |
| CN105299716A (en) | 2016-02-03 |
| CN105318384A (en) | 2016-02-10 |
| CN105318385A (en) | 2016-02-10 |
| CN105318383A (en) | 2016-02-10 |
| CN105318379A (en) | 2016-02-10 |
| CN105318381B (en) | 2019-09-17 |
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