CN105318383B - Smoke exhaust ventilator and its cigarette vapour detection method and wind speed adjusting method - Google Patents
Smoke exhaust ventilator and its cigarette vapour detection method and wind speed adjusting method Download PDFInfo
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- CN105318383B CN105318383B CN201410600112.0A CN201410600112A CN105318383B CN 105318383 B CN105318383 B CN 105318383B CN 201410600112 A CN201410600112 A CN 201410600112A CN 105318383 B CN105318383 B CN 105318383B
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Abstract
The present invention discloses a kind of smoke exhaust ventilator smokescope measuring method, the method includes passing through two light receivers, the light from same light source is detected respectively, light intensity through oil smoke area and the light intensity reflected by oil smoke area, and pass through the difference of the received light intensity of the two light receivers, come the step of judging oil smoke area oil smoke concentration or its variation tendency, receive the direction that light is received through the light receiver of oil smoke area light, direction with source emissioning light line is on same straight line, and, it is described to pass straight through the smoke exhaust ventilator smoke collecting chamber central point；It receives and is placed in a receiving hole of the smoke exhaust ventilator smoke collecting chamber one side wall by the light receiver of oil smoke area reflection light and light source.Invention additionally discloses a kind of smoke exhaust ventilators and its wind speed size Automatic adjustment method for automatically adjusting wind speed.The smoke exhaust ventilator can automatically adjust blower wind speed, facilitate operation, while being substantially prevented from kitchen fume pollution, moreover it is possible to realize energy conservation.
Description
Technical field
The present invention relates to a kind of smoke exhaust ventilator and its cigarette vapour detection method and wind speed adjusting methods.
Background technique
The ingredient of kitchen fume is extremely complex, mainly there is water, aldehyde, ketone, alcohol etc., including volatile nitrosamine, heterocycle
Mutagenesis, carcinogenic substance and tar known to aminated compounds etc., carbon monoxide and carbon dioxide etc..Existing harmful human health, again
Pollute Kitchen hygiene environment, it is necessary to abstraction in time.
The wind speed size of conventional extraction hood needs artificial adjusting, there is not enough science and accurately, extracts oil smoke and not enough meet
Health requirements, and often because forgetting to open switch for fume exhauster or need to adjust smoke exhaust ventilator in gastronomical process causes
The inconvenient phenomenon such as it is nervously fumbled.
Summary of the invention
The purpose of the present invention is to provide a kind of smoke exhaust ventilator and its detection of measurement cigarette vapour and wind speed adjusting methods, can be with
The automatic detection cigarettes such as kitchen fume and water vapour vapour concentration, and according to the concentration of practical cigarette vapour or whether there is or not control oil pumping
The blower wind speed of smoke machine, the work of intelligent control smoke exhaust ventilator achieve the purpose that purify kitchen.
As one aspect of the present invention, it is related to a kind of smoke exhaust ventilator smokescope measuring method, the method includes logical
Two light receivers are crossed, detect the light from same light source respectively, light intensity through oil smoke area and anti-by oil smoke area
The light intensity penetrated, and pass through the difference of the received light intensity of the two light receivers, to judge oil smoke area oil smoke concentration
Or the step of its variation tendency；The direction that light is received through the light receiver of oil smoke area light is received, with source emissioning light
The direction of line described passes straight through the smoke exhaust ventilator smoke collecting chamber central point on same straight line；It receives by oil smoke area
The light receiver and light source of reflection light are placed in a receiving hole of the smoke exhaust ventilator smoke collecting chamber one side wall, the light source
Light shutter is provided between the light receiver.Positional relationship between each component defined by this patent refers to,
When smoke exhaust ventilator is in use state, i.e., the smoke collecting chamber of smoke exhaust ventilator vertically downward when positional relationship.
As another aspect of the present invention, it is related to a kind of kitchen ventilator wind speed size Automatic adjustment method, including passes through two
A light receiver detects the light from same light source respectively, light intensity through oil smoke area and is reflected by oil smoke area
Light intensity, and the step of calculating the two light receivers received light intensity difference.According to two light being calculated
The received light intensity difference of line receiver, is adjusted smoke exhaust ventilator wind speed；The light received through oil smoke area light connects
The direction that device receives light is received, the direction with source emissioning light line described passes straight through the pumping on same straight line
Kitchen ventilator smoke collecting chamber central point；It receives and the smoke exhaust ventilator collection cigarette is placed in by the light receiver of oil smoke area reflection light and light source
In one receiving hole of chamber one side wall, light shutter is provided between the light source and the light receiver.
The method can also include that basis is calculated, and the received light intensity difference of two light receivers is come
The step of judging oil smoke area oil smoke concentration and/or its variation tendency.According to the cigarette vapour concentration and/or its variation tendency, to oil pumping
Smoke machine wind speed is adjusted.
The same light source can be with being infrared light supply or laser light source.The infrared light emission spectral region is in 600 waves
Number/centimetre to 4000 wave numbers/centimetre when, the signal that can be received is most stable.
Specifically, the kitchen ventilator wind speed size Automatic adjustment method includes the following steps:
Light emitters emit light towards oil smoke area；
The light that two light receivers receive the light through oil smoke area respectively and reflected by oil smoke area；
According to the strength difference of two the received light of light receiver, the wind speed of smoke exhaust ventilator is adjusted,
Or, judging oil smoke area cigarette vapour concentration and/or cigarette vapour according to the strength difference of two the received light of light receiver
Concentration variation tendency, and then according to the oil smoke area cigarette vapour concentration and/or cigarette vapour concentration variation tendency judged, adjust smoke exhaust ventilator
Wind speed.
Specifically, according to the strength difference of two the received light of light receiver, judge oil smoke area cigarette vapour concentration and/or
Cigarette vapour concentration variation tendency refers to, the strength difference and cigarette vapour of two the received light of light receiver are preset in smoke exhaust ventilator
The strength difference variation tendency of the mapping table of concentration and/or two the received light of light receiver and the variation of cigarette vapour concentration are closed
The mapping table of system, according to the strength difference and/or two received light of light receiver of two the received light of light receiver
The strength difference variation tendency of line determines the concentration and/or its variation tendency of cigarette vapour using preset mapping table.
Specifically, according to the strength difference of two the received light of light receiver, the wind speed for adjusting smoke exhaust ventilator refers to,
If the strength difference of two the received light of light receiver changes within the scope of the difference threshold of setting, rotation speed of fan is kept
It is constant.If the difference that the received transmitted ray intensity of light receiver subtracts the received reflection light intensity of light receiver is greater than
The difference threshold of setting then reduces blower wind speed；If the received transmitted ray intensity of light receiver subtracts light receiver institute
The difference for receiving reflection light intensity is less than the difference threshold of setting, then increases blower wind speed.Or, if light receiver is received
The difference that reflection light intensity subtracts the received transmitted ray intensity of light receiver is greater than the difference threshold of setting, then increases wind
Machine wind speed；If the difference that the received reflection light intensity of light receiver subtracts the received transmitted ray intensity of light receiver is small
In the difference threshold of setting, then reduce blower wind speed.
It is described according to the oil smoke area cigarette vapour concentration judged and/or cigarette vapour concentration variation tendency, adjust the wind of smoke exhaust ventilator
Speed refers to, if the variation of the oil smoke area cigarette vapour concentration judged is within the scope of the difference threshold of setting and/or cigarette vapour concentration threshold
In range, then keep rotation speed of fan constant；If the oil smoke area cigarette vapour concentration judged lower than setting cigarette vapour concentration threshold, and/
Or the value that the cigarette vapour concentration reduces is greater than the difference threshold set, then reduces rotation speed of fan；If the oil smoke area cigarette vapour judged is dense
The value that degree is greater than the cigarette vapour concentration threshold of setting and/or the cigarette vapour concentration increases is greater than the difference threshold of setting, then increases blower
Revolving speed.
The increase rotation speed of fan, which can be to increase immediately, is also possible to delay increase；The reduction can be to be subtracted immediately
It is small, it is also possible to delay and reduces.Increase blower wind speed, can rapidly siphon away the cigarette vapour in oil smoke area, prevents the oil smoke in kitchen dirty
Dye.The shadow to gas of gas range utilization efficiency can also be reduced while saving smoke exhaust ventilator electric energy by reducing blower wind speed
It rings.
As the third aspect of the invention, it is related to a kind of smoke exhaust ventilator for automatically adjusting wind speed, the smoke exhaust ventilator
One side wall is provided with a light emitters, with setting light emitters to side wall be arranged light receiver one, with set
The same side wall setting light receiver two of light emitters is set, so that the light receiver one can receive the light hair
Emitter issues and penetrates the light in oil smoke area, and light receiver two can receive the light emitters and issue and anti-through oil smoke area
The light penetrated；Light receiver one receive light direction, with light emitters transmitting light direction on same straight line,
Also, it is described to pass straight through the smoke exhaust ventilator smoke collecting chamber central point；The smoke exhaust ventilator side wall is equipped with receiving hole, the light
Receiver two and the light emitters are placed in same receiving hole, are provided between the light source and the light receiver two
Light shutter directly reaches the light receiver two with the light for preventing the light emitters from being emitted.
The light emitters can be infrared transmitter or laser emitter.
The smoke exhaust ventilator is additionally provided with controller of fan, and the air-blower control machine is received according to two light receivers
Light intensity difference or its variation tendency or cigarette vapour concentration or cigarette vapour concentration variation tendency signal, fume exhaust fan blower is sent out
Control instruction out.
After adopting the above scheme, the present invention at least can be realized it is following the utility model has the advantages that
1, when the light of light emitters transmitting passes through oil smoke area, energy is absorbed, scatter after connect by light receiver
It receives, the energy value by emitting and receiving light changes, and the concentration and its variation tendency of cigarette vapour can be measured, to control blower
Wind speed realizes the work of intelligent control smoke exhaust ventilator, achievees the purpose that purify kitchen；
2, using infrared transmitter, and make its emit spectral region 600 wave numbers/centimetre -4000 wave numbers/centimetre, and
The main component of kitchen cigarette vapour 3000 wave numbers/centimetre infrared region have absorption peak, light transmittance is low, thus in this way design more can
Accurately measure smokescope；
3, by the way that receiving hole is arranged in smoke collecting chamber one side center, transmitter and receiver is made to be mounted on receiving
In hole, such design structure is simple, is easily installed.
4, by the automatic adjustment of wind speed, in terms of gas consumption two of the power consumption of smoke exhaust ventilator and gas-cooker,
All realize energy saving purpose.
Detailed description of the invention
Fig. 1 is the decomposition texture schematic diagram for the smoke exhaust ventilator that the present invention regulates and controls wind speed with cigarette.
1 is light emitters；2 be light receiver；3 be receiving hole；4 be light shutter.
Specific embodiment
The present invention will be further explained below with reference to the attached drawings and specific examples, so that those skilled in the art can be with
It better understands the present invention and can be practiced, but illustrated embodiment is not as a limitation of the invention.
As shown in Figure 1, the smoke exhaust ventilator that the present embodiment provides automatic adjustment wind speed is installed in smoke collecting chamber side wall centre bit
There are two receiving hole 3, light emitters 1 and a light receiver 2 are placed in the same receiving hole 3, another light receiver 2
It is placed in the receiving hole 3 of opposite side, light shutter 4 is provided between the light emitters and the light receiver, to keep away
The light for exempting from light emitters sending directly reaches the light receiver in same receiving hole.The light receiver difference
The light emitters can be received to issue, light through oil smoke area and the light reflected through oil smoke area.Light emitters and
The positional relationship of light receiver, enables opposite side light receiver to receive, and is issued by light emitters and passes through oil smoke area
The light at center, ipsilateral light receiver are then to receive, the light for being issued by light emitters and being reflected by oil smoke center.
Because in general, the concentration of oil smoke center is maximum, so, it is measured to transmission or by the light of oil smoke center
As a result, best embodying the oil smoke concentration information in oil smoke area.
The light emitters can be infrared transmitter, be also possible to laser emitter.It is corresponding, the light receiver
It can be infrared light receiver, be also possible to laser pickoff.
The there is provided smoke exhaust ventilator of the present embodiment, the smoke exhaust ventilator cigarette vapour detection method used is passes through two light receivers
Device detects the light from same light source respectively, light intensity through oil smoke area and the light intensity reflected by oil smoke area, and
By the difference of the received light intensity of the two light receivers, to judge oil smoke area oil smoke concentration or its variation tendency.
Two light receivers institute can be received, by naturally occurring one between oil smoke area is reflected and is transmitted light intensity
A difference.The oil smoke concentration in this difference and oil smoke area is positively correlated or negative correlation.It is made the difference by this two light receivers
Mode, the interference of extraneous scattering light can be removed substantially.Extraneous irreflexive light influences whether that light receiver is received
The amount of working light, although irreflexive specific magnitude is difficult to determine, the influence of two light receivers is essentially identical
's.So in such a way that two light receivers make the difference, so that it may the interference of the basic extraneous scattering light of removal, without going
Consider this influence value on earth and have and is much.
In the light signal power map received by the light receiver of light emitters opposite side, interference signal (lamp
Light, barrier etc.) caused by power spectrum amplitude of variation be much larger than useful signal, and frequency is then much smaller than useful signal frequency, can
Effectively to distinguish.In light signal power map received by light emitters and ipsilateral light receiver, interference signal
Cause power spectrum amplitude of variation much larger than useful signal, and frequency is then much smaller than useful signal frequency, and change direction with it is right
Side receiver direction is identical.Data in two power maps are asked poor, it is seen then that interference signal is because amplitude changes identical, quilt
Weaken, and useful signal is then reinforced, that is to say, that the influence of interference source is eliminated.The result for seeking difference is filtered, is filtered
Except the interference signal of low frequency and the noise signal of high frequency, processing is then amplified, so that it may obtain effective light intensity signal value.
The smoke exhaust ventilator wind speed Automatic adjustment method that the present embodiment uses are as follows:
Light emitters emit light towards oil smoke area；
The light that two light receivers receive the light through oil smoke area respectively and reflected by oil smoke area；
According to the strength difference of two the received light of light receiver, the wind speed of smoke exhaust ventilator is adjusted,
Or, judging oil smoke area cigarette vapour concentration and/or cigarette vapour according to the strength difference of two the received light of light receiver
Concentration variation tendency, and then according to the oil smoke area cigarette vapour concentration and/or cigarette vapour concentration variation tendency judged, adjust smoke exhaust ventilator
Wind speed.
The strength difference of two the received light of light receiver and reflecting for cigarette vapour concentration can be preset in smoke exhaust ventilator
The mapping of the strength difference variation tendency of firing table and/or two the received light of light receiver and cigarette vapour concentration variation relation
Table, according to the intensity of the strength difference of two received light of light receiver and/or two the received light of light receiver
Difference variation tendency determines the concentration and/or its variation tendency of cigarette vapour using preset mapping table.
If the strength difference of two the received light of light receiver changes within the scope of the difference threshold of setting, keep
Rotation speed of fan is constant.If the received transmitted ray intensity of light receiver subtracts the received reflection light intensity of light receiver
Difference is greater than the difference threshold of setting, then reduces blower wind speed；If the received transmitted ray intensity of light receiver subtracts light
The difference of the received reflection light intensity of receiver is less than the difference threshold of setting, then increases blower wind speed.Or, if light receiver
The difference that the received reflection light intensity of device subtracts the received transmitted ray intensity of light receiver is greater than the difference threshold of setting,
Then increase blower wind speed；If the received reflection light intensity of light receiver subtracts the received transmitted ray intensity of light receiver
Difference be less than setting difference threshold, then reduce blower wind speed.
If the variation of the oil smoke area cigarette vapour concentration judged is within the scope of the difference threshold of setting and/or cigarette vapour concentration threshold
It is worth in range, then keeps rotation speed of fan constant；If the oil smoke area cigarette vapour concentration judged is lower than the cigarette vapour concentration threshold of setting,
And/or the value that the cigarette vapour concentration reduces is greater than the difference threshold set, then reduces rotation speed of fan；If the oil smoke area cigarette vapour judged
The value that concentration is greater than the cigarette vapour concentration threshold of setting and/or the cigarette vapour concentration increases is greater than the difference threshold of setting, then increases wind
Machine revolving speed.
The increase rotation speed of fan, which can be to increase immediately, is also possible to delay increase；The reduction can be to be subtracted immediately
It is small, it is also possible to delay and reduces.Using delay feature, motor frequent start-stop and speed change can be prevented, causes the damage of motor.Increase
Big blower wind speed, the cigarette vapour in oil smoke area can be siphoned away rapidly, prevent the fume pollution in kitchen.Reduce blower wind speed, is saving
While smoke exhaust ventilator electric energy, the influence to gas of gas range utilization efficiency can also be reduced.
The infrared light emission spectral region 600 wave numbers/centimetre to 4000 wave numbers/centimetre when, testing result is more stable
With it is reliable.
The received light intensity of light receiver of the present invention, when the output signal of used light receiver is electric current
When value, the current value that both can directly have been exported is indicated, is also possible to one light receiver of setting and is exported electric current and institute
The correspondence table of light intensity is received, and the received light intensity value of institute is obtained according to this correspondence table.That is, institute of the present invention
The light intensity of title or its variation tendency may also mean that basis should either referring to the current value that light receiver is exported
Light intensity determined by current value.Likewise, the present invention is alleged to obtain oil smoke according to the received light intensity of light receiver
The process of area's cigarette vapour concentration or its variation tendency, either directly determined using the current value that light receiver is exported,
It is also possible to determine using identified light intensity value.
When the output of used light receiver is current value, the present embodiment can be pre- in provided smoke exhaust ventilator
If the mapping table of the output current differential and cigarette vapour concentration of a light receiver.If I1, I2 are respectively light receiver
One and light receiver two output electric current, the infrared energy value that w is emitted by light emitters, when cigarette vapour concentration value be m
When, I1m=f (kw), I2m=f (gw), in formula, f is that the input-output characteristic formula of infrared receiving module (is the fixed ginseng of module
Count, can be looked into the service manual of sensor), k is that transmitted ray signal and transmitting light signal ratio, g are when smokescope is m
When smokescope is m, reflected light signal and transmitting light signal ratio.It can reflect that smog is dense by calculating (I2-I1)
The size of degree: (I2-I1) is bigger, indicates that oil smoke concentration is bigger；(I2-I1) smaller, indicate that oil smoke concentration is smaller.
The there is provided smoke exhaust ventilator of the present embodiment, inside can be equipped with light signal processing module and fan control module.?
After light receiver receives light signal to, its received light signal is sent to the light signal processing module of smoke extractor, it should
Light signal processing module show that the concentration of oil smoke area cigarette vapour becomes according to the light intensity difference of two the received light of light receiver
Change trend, and it is transferred to fan control module, concentration variation tendency of the fan control module according to oil smoke area oil smoke, adjustment
The wind speed of fume exhaust fan blower.If oil smoke area cigarette vapour concentration is increasing, the blower wind speed of smoke exhaust ventilator is improved；If oil smoke area cigarette
Vapour concentration is reducing, then reduces the blower wind speed of smoke exhaust ventilator；If oil smoke area cigarette vapour concentration is basicly stable, smoke exhaust ventilator is maintained
Blower wind speed it is constant.Either, two received light of light receiver can be preset in light signal processing module
The mapping table of strength difference and cigarette vapour concentration and/or the strength difference variation tendency of two the received light of light receiver and
The mapping table of cigarette vapour concentration variation relation, according to the strength difference and/or two light of two the received light of light receiver
The strength difference variation tendency of the received light of receiver determines the concentration and/or its variation of cigarette vapour using preset mapping table
Trend.The concentration or variation tendency are transmitted to fan control module, and fan control module is according to the cigarette vapour concentration or its variation
The blower of smoke exhaust ventilator is adjusted to corresponding wind speed by trend.
The light signal processing module can be placed in the light receiver, at the received light signal of institute
Reason, and processing result is sent to fan control module.The fan control module can be placed in controller of fan, blower control
Machine processed according to the received light intensity of institute or light intensity variation tendency or cigarette vapour concentration or cigarette vapour concentration variation tendency signal,
Control instruction is issued to fume exhaust fan blower.
Embodiment described above is only to absolutely prove preferred embodiment that is of the invention and being lifted, protection model of the invention
It encloses without being limited thereto.Those skilled in the art's made equivalent substitute or transformation on the basis of the present invention, in the present invention
Protection scope within.Protection scope of the present invention is subject to claims.
Claims (13)
1. a kind of smoke exhaust ventilator smokescope measuring method, which is characterized in that the method includes passing through two light receivers,
The light from same light source is detected respectively, light intensity through oil smoke area and the light intensity reflected by oil smoke area, and lead to
The difference of the received light intensity of the two light receivers is crossed, to judge the step of oil smoke area cigarette vapour concentration or its variation tendency
Suddenly;
The direction that light is received through the light receiver of oil smoke area light is received, the direction with source emissioning light line is in same
On straight line, also, described pass straight through the smoke exhaust ventilator smoke collecting chamber central point；
Reception is placed in one of the smoke exhaust ventilator smoke collecting chamber one side wall by the light receiver of oil smoke area reflection light and light source
In receiving hole, the light source and the reception are provided with light shutter between the light receiver of oil smoke area reflection light.
2. smoke exhaust ventilator smokescope measuring method described in claim 1, which is characterized in that the light be infrared light or
Laser beam.
3. a kind of smoke exhaust ventilator wind speed size Automatic adjustment method, which is characterized in that including passing through two light receivers, difference
The light from same light source, light intensity through oil smoke area and the light intensity reflected by oil smoke area are detected, and calculates this
The step of two light receivers received light intensity difference,
The direction that light is received through the light receiver of oil smoke area light is received, the direction with source emissioning light line is in same
On straight line, also, described pass straight through the smoke exhaust ventilator smoke collecting chamber central point；
Reception is placed in one of the smoke exhaust ventilator smoke collecting chamber one side wall by the light receiver of oil smoke area reflection light and light source
In receiving hole, the light source and the reception are provided with light shutter between the light receiver of oil smoke area reflection light；
According to the received light intensity difference of two light receivers being calculated, the step that smoke exhaust ventilator wind speed is adjusted
Suddenly；
Or according to being calculated, two light receivers received light intensity differences, come judge oil smoke area cigarette vapour concentration and/
Or its variation tendency, according to the cigarette vapour concentration and/or its variation tendency, the step of smoke exhaust ventilator wind speed is adjusted.
4. smoke exhaust ventilator wind speed size Automatic adjustment method described in claim 3, which is characterized in that the same light source is infrared
Light source or laser light source.
5. smoke exhaust ventilator wind speed size Automatic adjustment method described in claim 4, which is characterized in that the infrared light emission spectrum
Range 600 wave numbers/centimetre to 4000 wave numbers/centimetre.
6. any one of the claim 3-5 smoke exhaust ventilator wind speed size Automatic adjustment method, which is characterized in that the method packet
Include following steps:
Light emitters emit light towards oil smoke area；
The light that two light receivers receive the light through oil smoke area respectively and reflected by oil smoke area；
According to the strength difference of two the received light of light receiver, the wind speed of smoke exhaust ventilator is adjusted,
Or, judging oil smoke area cigarette vapour concentration and/or cigarette vapour concentration according to the strength difference of two the received light of light receiver
Variation tendency, and then according to the oil smoke area cigarette vapour concentration and/or cigarette vapour concentration variation tendency judged, adjust the wind of smoke exhaust ventilator
Speed.
7. smoke exhaust ventilator wind speed size Automatic adjustment method described in claim 6, which is characterized in that according to two light receivers
The strength difference of received light judges that oil smoke area cigarette vapour concentration and/or cigarette vapour concentration variation tendency refer to,
The mapping table of the strength difference of default two the received light of light receiver and cigarette vapour concentration in smoke exhaust ventilator, and/
Or the mapping table of the strength difference variation tendency of two the received light of light receiver and cigarette vapour concentration variation relation,
According to the strong of the strength difference of two received light of light receiver and/or two received light of light receiver
Difference variation tendency is spent, the concentration and/or its variation tendency of cigarette vapour are determined using preset mapping table.
8. smoke exhaust ventilator wind speed size Automatic adjustment method described in claim 7, which is characterized in that described to be connect according to two light
The strength difference of the received light of device is received, the wind speed for adjusting smoke exhaust ventilator refers to,
If the strength difference of two the received light of light receiver changes within the scope of the difference threshold of setting, blower is kept
Revolving speed is constant；
If the difference that the received transmitted ray intensity of light receiver subtracts the received reflection light intensity of light receiver is greater than
The difference threshold of setting then reduces blower wind speed；
If the difference that the received transmitted ray intensity of light receiver subtracts the received reflection light intensity of light receiver is less than
The difference threshold of setting then increases blower wind speed；
Or,
If the difference that the received reflection light intensity of light receiver subtracts the received transmitted ray intensity of light receiver is greater than
The difference threshold of setting then increases blower wind speed；
If the difference that the received reflection light intensity of light receiver subtracts the received transmitted ray intensity of light receiver is less than
The difference threshold of setting then reduces blower wind speed.
9. smoke exhaust ventilator wind speed size Automatic adjustment method described in claim 8, which is characterized in that the increase rotation speed of fan can
To be that instant increase is also possible to delay increase；The reduction can be instant reduction, is also possible to delay and reduces.
10. smoke exhaust ventilator wind speed size Automatic adjustment method described in claim 6, which is characterized in that described according to being judged
Oil smoke area cigarette vapour concentration and/or cigarette vapour concentration variation tendency, the wind speed for adjusting smoke exhaust ventilator refer to,
If the variation of the oil smoke area cigarette vapour concentration judged is within the scope of the difference threshold of setting and/or cigarette vapour concentration threshold model
In enclosing, then keep rotation speed of fan constant；
If the oil smoke area cigarette vapour concentration judged is big lower than the value that the cigarette vapour concentration threshold of setting and/or the cigarette vapour concentration reduce
In the difference threshold of setting, then reduce rotation speed of fan；
If the value that the oil smoke area cigarette vapour concentration judged is greater than the cigarette vapour concentration threshold of setting and/or the cigarette vapour concentration increases is big
In the difference threshold of setting, then increase rotation speed of fan.
11. smoke exhaust ventilator wind speed size Automatic adjustment method described in claim 10, which is characterized in that the increase rotation speed of fan
It can be to increase immediately and be also possible to delay increase；The reduction can be instant reduction, is also possible to delay and reduces.
12. a kind of smoke exhaust ventilator for automatically adjusting wind speed, which is characterized in that the one side wall of the smoke exhaust ventilator is provided with a light
Line transmitter, with setting light emitters to side wall be arranged light receiver one, with setting light emitters it is ipsilateral
Light receiver two is arranged in wall, issues so that the light receiver one can receive the light emitters and penetrates oil smoke
The light in area, light receiver two can receive the light that the light emitters are issued and reflected through oil smoke area,
The direction that light is received through the light receiver of oil smoke area light is received, the direction with source emissioning light line is in same
On straight line, also, described pass straight through the smoke exhaust ventilator smoke collecting chamber central point；
The smoke exhaust ventilator side wall is equipped with receiving hole, and the light receiver two is placed in same receiving hole with the light emitters
Interior, the light source and the reception are provided with light shutter between the light receiver of oil smoke area reflection light；
The smoke exhaust ventilator is additionally provided with controller of fan, and the air-blower control machine is according to two received light of light receiver institute
The difference of line intensity or its variation tendency or cigarette vapour concentration or cigarette vapour concentration variation tendency signal issue fume exhaust fan blower and control
System instruction.
13. automatically adjusting the smoke exhaust ventilator of wind speed described in claim 12, which is characterized in that the light emitters are infrared lights
Transmitter or laser emitter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410600112.0A CN105318383B (en) | 2014-08-01 | 2014-10-31 | Smoke exhaust ventilator and its cigarette vapour detection method and wind speed adjusting method |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2014103756805 | 2014-08-01 | ||
| CN201410375680 | 2014-08-01 | ||
| CN201410600112.0A CN105318383B (en) | 2014-08-01 | 2014-10-31 | Smoke exhaust ventilator and its cigarette vapour detection method and wind speed adjusting method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105318383A CN105318383A (en) | 2016-02-10 |
| CN105318383B true CN105318383B (en) | 2019-08-09 |
Family
ID=55197292
Family Applications (12)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410600344.6A Pending CN105318385A (en) | 2014-08-01 | 2014-10-31 | Wind speed regulating system and method for range hood |
| 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 |
| 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 |
| CN201410600029.3A Active CN105318381B (en) | 2014-08-01 | 2014-10-31 | Automatic speed regulation smoke exhaust ventilator self-checking system and self checking method |
| CN201410600325.3A Pending CN105318384A (en) | 2014-08-01 | 2014-10-31 | Range hood and wind speed regulating system and method thereof |
| 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 |
| 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 |
| CN201410600345.0A Pending CN105318386A (en) | 2014-08-01 | 2014-10-31 | Range hood capable of regulating wind speed automatically |
| 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 |
| CN201410600324.9A Pending CN105299718A (en) | 2014-08-01 | 2014-10-31 | Smoke exhauster capable of automatically adjusting wind speed |
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| 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 |
| 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 |
| CN201410600029.3A Active CN105318381B (en) | 2014-08-01 | 2014-10-31 | Automatic speed regulation smoke exhaust ventilator self-checking system and self checking method |
| CN201410600325.3A Pending CN105318384A (en) | 2014-08-01 | 2014-10-31 | Range hood and wind speed regulating system and method thereof |
| 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 |
| 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 |
| CN201410600345.0A Pending CN105318386A (en) | 2014-08-01 | 2014-10-31 | Range hood capable of regulating wind speed automatically |
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| CN201410600324.9A Pending CN105299718A (en) | 2014-08-01 | 2014-10-31 | Smoke exhauster capable of automatically adjusting wind speed |
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Also Published As
| Publication number | Publication date |
|---|---|
| CN105318383A (en) | 2016-02-10 |
| CN105318379B (en) | 2019-05-07 |
| CN105299719A (en) | 2016-02-03 |
| CN105318386A (en) | 2016-02-10 |
| CN105318381A (en) | 2016-02-10 |
| CN105299718A (en) | 2016-02-03 |
| CN105299717A (en) | 2016-02-03 |
| CN105318380A (en) | 2016-02-10 |
| CN105318385A (en) | 2016-02-10 |
| CN105318384A (en) | 2016-02-10 |
| CN105318382A (en) | 2016-02-10 |
| CN105299716A (en) | 2016-02-03 |
| CN105318379A (en) | 2016-02-10 |
| CN105318381B (en) | 2019-09-17 |
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