CN106287889B - The rotation speed of fan Automatic adjustment method of range hood and the regulating device for realizing this method - Google Patents
The rotation speed of fan Automatic adjustment method of range hood and the regulating device for realizing this method Download PDFInfo
- Publication number
- CN106287889B CN106287889B CN201610871188.6A CN201610871188A CN106287889B CN 106287889 B CN106287889 B CN 106287889B CN 201610871188 A CN201610871188 A CN 201610871188A CN 106287889 B CN106287889 B CN 106287889B
- Authority
- CN
- China
- Prior art keywords
- wind turbine
- range hood
- fan
- blower fan
- range
- 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.)
- Active
Links
Classifications
-
- 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
Abstract
The present invention relates to the rotation speed of fan Automatic adjustment method of range hood, the comprehensive fan performance threshold pressure differential range different as parameter setting, and the blower fan work grade for realizing different rotation speed of fan controls is marked off according to threshold pressure differential range.Pressure difference of the pressure difference between acquisition and calculating range hood smoke discharging pipe and range hood inner cavity as range hood in real time.Blower fan work grade is obtained according to the pressure difference of the range hood obtained in real time, and then realizes the adjustment control of rotation speed of fan.The invention further relates to the rotation speed of fan regulating devices of range hood, gas pressure sensor, the rotation speed of fan being connected including controller and with controller adjust circuit and control key, and the pressure difference of range hood is obtained by the calculating for detecting and controlling device of gas pressure sensor.The automatic speed regulation of the more scientific realization wind turbine of rotation speed of fan Automatic adjustment method and regulating device energy of range hood, improves the working effect of range hood.
Description
Technical field
The present invention relates to range hood technical fields, are related to a kind of rotation speed of fan Automatic adjustment method of range hood, also
It is related to a kind of regulating device for realizing the rotation speed of fan adjusting method.
Background technology
The wind turbine of existing domestic cooking fume remover usually has multi gear rotating speed handoff functionality, and operation is switched over manual key
Based on.In use, user can just go to switch after often smelling greasy smell, in addition kitchen work is complicated, user is not often due to have
Having time can not carry out speed governing in time, or forget to carry out speed governing, poor so as to cause the user experience of range hood.
It is aforementioned in order to solve the problems, such as, occur the range hood with automatic speed regulating function, this kind of range hood therewith
Entirety can divide into two classes：One is the automatic tune that the oil smoke concentration size of detection range hood smoking port carries out rotation speed of fan
Section detects smokescope including the use of smoke sensor device and detects smoking port temperature using temperature sensor, with perception heating fire
Power, and then as the foundation for adjusting rotation speed of fan；It is another then be detection smoke outlet flue resistance size carry out rotation speed of fan
Automatic adjustment includes that the modes such as electric current and voltage change by detecting motor obtain smoke outlet flue resistance size, to make
To adjust the foundation of rotation speed of fan.But individual any type method cannot all control the standard of wind turbine automatic speed regulation well
True property.For example, individually carrying out speed governing, if smoking port oil smoke concentration is smaller, range hood according to smoking port oil smoke concentration size
It is operated in bottom gear, at this time if in peak period of cooking, flue resistance is very big, then be likely to occur that oil smoke in flue pours in down a chimney shows
As；On the contrary, individually carrying out speed governing according to flue resistance size, if flue resistance is smaller, range hood is operated in bottom gear, this
Shi Ruguo user just in quick-fried, generates prodigious oil smoke, then not enough oil smoke spilling can occurs because of suction.
Invention content
First technical problem to be solved by this invention is that offer one kind can not only be simultaneously for the above-mentioned prior art
Consider that flue resistance and oil smoke concentration factor influence, while considering that the wind turbine for the range hood that fan performance changing factor influences turns
Fast Automatic adjustment method.
Second technical problem to be solved by this invention is that offer one kind being capable of timely, science for the above-mentioned prior art
Realization fan speed regulation to improve the rotation speed of fan regulating device of the range hood of fume-exhausting and mist extractor effect.
Technical solution is used by the present invention solves above-mentioned first technical problem：A kind of rotation speed of fan of range hood
Automatic adjustment method, it is characterised in that：Using fan performance as the multiple threshold pressure differential ranges of parameter setting, and then according to multiple pressures
Poor threshold range marks off the corresponding blower fan work grade for realizing different rotation speed of fan controls；
Pressure signal at detection in real time and acquisition range hood smoke outlet and the pressure signal in range hood inner cavity,
And then the pressure difference value at range hood smoke outlet and in range hood inner cavity is calculated using the real-time pressure difference as range hood；
Judge the threshold pressure differential range belonging to the real-time pressure difference of range hood, and then obtains threshold pressure differential range correspondence
Blower fan work grade, according to blower fan work grade adjust automatically control wind turbine rotating speed.
Preferably, the rotation speed of fan Automatic adjustment method of range hood includes the following steps：
Step 1, initialization；
Multiple blower fan work grades for corresponding to different rotating speeds respectively are defined, according to rotating speed sequence from small to large, fanman
Make grade and is defined as L successively1、L2、L3、……、Lm、……、Ln, wherein n is natural number, 1≤m≤n；
P=Pout-Pin, the pressure difference of wherein P expression range hoods, PoutIndicate the static pressure in range hood smoke discharging pipe
Value, Pout>=0, PinIndicate the static pressure in range hood inner cavity, Pin≤0；
R=[R1、R2、R3、……、Rm、……、Rn], Rm=(MinPm-Pm)/MinP, wherein MinP > P0, R is wind turbine
Performance down ratio value, RmIt is wind turbine in blower fan work grade LmFan performance down ratio value under state, MinPmTo inhale
Static pressure in smoke exhaust pipe of range hood road is 0, and wind turbine is according to blower fan work grade LmWith under normal performance working condition
The pressure difference absolute value of range hood, PmIt is wind turbine according to blower fan work grade LmThe actual pressure differential value of range hood when work；
Define multiple performance down ratio threshold range [MinRj,MaxRj], j is natural number, MinRjIndicate j-th of decline
Proportion threshold value range inner blower performance down ratio value minimum value, MaxRjIndicate j-th of down ratio threshold range inner blower
It can down ratio value maximum value；
When defining wind turbine according to level works such as each blower fan works, the corresponding wind in different performance down ratio threshold range
Machine property regulation coefficient lookup table { K1,K2,K3,……,Km,……,Kn, Km=[Km1,Km2,Km3,……,Kmj], wherein KmTable
Show wind turbine according to blower fan work grade LmCorresponding fan performance is adjusted in different performance down ratio threshold range when work
Coefficient lookup table, KmjIndicate wind turbine according to blower fan work grade LmIn performance down ratio threshold range [MinR when workj,
MaxRj] in corresponding fan performance adjustment factor inquiry table；
For each blower fan work grade, fan performance adjustment factor initial value K=1 is defined；
Define the corresponding threshold pressure differential range [K of each blower fan work gradei*MinPi,Ki*MaxPi], 1≤i≤n；KiIt indicates
Wind turbine is according to blower fan work grade LiCorresponding fan performance adjusts system in different performance down ratio threshold range when work
Number；MinPiIndicate the pressure difference minimum value of range hood within the scope of i-th of threshold pressure differential, MaxPiIndicate i-th of threshold pressure differential range
The pressure difference maximum value of interior range hood；
Step 2 starts range hood, and fan performance adjustment factor is set to initial value Km=1；
With any blower fan work grade LmCorresponding rotating speed opens the wind turbine in range hood；
Step 3, the in real time pressure signal at acquisition range hood smoke outlet and the pressure signal in range hood inner cavity；
Step 4 calculates the positive pressure value P at range hood smoke outlet according to the pressure signal in step 3+And range hood
Negative pressure value P- in inner cavity, and then calculate the real-time pressure difference P of range hoodm=P+-P-；
Step 5, the real-time pressure difference P according to range hoodm, calculate blower fan work grade LmUnder the conditions of fan performance decline
Ratio value Rm, to judge whether the working performance of wind turbine declines；
If it is not, then keeping current fan performance adjustment factor constant；
If it is, obtaining current wind according to performance down ratio threshold range and fan performance adjustment factor inquiry table
Machine property regulation COEFFICIENT Kmj, and then correct fan performance adjustment factor Km=Kmj；
Step 6 obtains corresponding threshold pressure differential range [K according to the current adjustment factor of wind turbinem*MinPm,Km*MaxPm],
Compare Pm、Km*MinPm、Km*MaxPmSize；
If Km*MinPm≤Pm≤Km*MaxPm, then uncomfortable rectification campaign machine job class, accordingly controls wind turbine according to former rotating speed
Run work；
If Pm< Km*MinPm, then judge whether current blower fan work grade is L1, if it is, keeping current wind
Machine job class, the corresponding wind turbine that controls runs work according to former rotating speed, if otherwise adjustment blower fan work grade is Lm-1, accordingly
New rotation speed of fan control signal is exported, the adjustment of rotational speed to control wind turbine falls to L as blower fan work gradem-1Corresponding turn
Speed；
If Pm> Km*MaxPm, then judge whether current blower fan work grade is Ln, if it is, keeping current wind
Machine job class, the corresponding wind turbine that controls runs work according to former rotating speed, if otherwise adjustment blower fan work grade rises to Lm+1,
New rotation speed of fan control signal is accordingly exported, the adjustment of rotational speed to control wind turbine is blower fan work grade for Lm+1Corresponding turn
Speed.
In order to avoid because pressure difference data caused by the factors such as voltage instability, flue pressure transient recurrent fluctuations occurs
The case where caused wind turbine frequent speed governing, in step 1, define unit timing section T, wind turbine automatic speed regulation number upper limit value
Mmax, wind turbine automatic speed regulation number M, frequent speed governing identify F；
In step 2, after starting range hood, wind turbine automatic speed regulation number is set to initial value M=0, and frequent speed governing mark is set
0, i.e. F=0；
After wind turbine starts, then timing is carried out to the working time of wind turbine；
In step 6, often then wind turbine automatic speed regulation number adds 1 to adjustment primary air fan job class automatically, judges each single
Whether position timing section T inner blower automatic speed regulation numbers are more than Mmax；
If it does, the judgement frequent speed governing of wind turbine, frequent speed governing mark F sets 1, i.e. F=1, as F=1, in the unit meter
When section T range in can only carry out blower fan work grade and rise to adjust；
If be less than, judge that wind turbine does not occur the case where frequent speed governing, wind turbine can carry out in blower fan work grade
Rising tune section can also carry out blower fan work grade and decline adjusting；
After timing time reaches unit timing section T, then speed governing number is reset, and reenters next unit timing section
The timing of T, until closing wind turbine.
Hommization, fan performance down ratio lower threshold MIN_R is defined in step 1；After starting wind turbine, work as Rm<
When MIN_R, then cleaning range hood is prompted.
Technical solution is used by the present invention solves above-mentioned second technical problem：The rotation speed of fan of range hood is adjusted
Device is connect with wind turbine to control blower fan work, it is characterised in that：Including gas pressure sensor, controller, rotation speed of fan tune
Economize on electricity road and control key；
There is positive pressure mouth and negative pressure mouth, the positive pressure mouth to pass through the first conduit and fume-exhausting on the gas pressure sensor
The smoke discharging pipe of machine is connected, and the negative pressure mouth is connected by the second conduit with the inner cavity of range hood, the atmospheric pressure
The signal wire of sensor is connected with the controller；
The rotation speed of fan adjusts circuit and is connected with controller and wind turbine respectively to be ordered according to the control of the controller
Enable the rotating speed for adjusting wind turbine；
The control key is connected with the controller with the input control order into the controller.
In order to reduce external interference factor disturbance fluctuation caused by pressure signal, the gas pressure sensor and control
Filter circuit is also associated between device.
Further include the display being connected with the controller in order to facilitate the working condition of display range hood.
Easily, the control key includes for opening and closing the on & off switch of range hood, for realizing range hood
Rotation speed of fan manual adjustment mode and automatic adjustment pattern switching mode tuning key, for adjusting mould manually in rotation speed of fan
Multiple gear keys of rotation speed of fan are adjusted under formula.
Compared with the prior art, the advantages of the present invention are as follows：The rotation speed of fan of range hood in the present invention automatically adjusts
Method and regulating device are realized and are inhaled by the detection to pressure in pressure in range hood smoke discharging pipe and range hood inner cavity
Pressure difference in smoke exhaust pipe of range hood road in pressure and range hood inner cavity between pressure is as Fan Regulation basis, i.e., from oil suction
Two aspects of cigarette and mist extractor have considered the influence on system operation factor of wind turbine.The rotation speed of fan of the range hood is adjusted automatically simultaneously
Fan performance changing factor in the long-term use, the more automatic tune for realizing wind turbine of science are also considered in section method
Speed improves the fume-exhausting of range hood and the effect of mist extractor.
Description of the drawings
Fig. 1 is the structural schematic diagram of the Fan Regulation device of range hood in the embodiment of the present invention.
Fig. 2 is the structure diagram of the Fan Regulation device of range hood in the embodiment of the present invention.
Fig. 3 is the flow chart of the rotation speed of fan Automatic adjustment method of range hood in the embodiment of the present invention.
Specific implementation mode
Below in conjunction with attached drawing embodiment, present invention is further described in detail.
As depicted in figs. 1 and 2, range hood generally includes a shell 100, has smoke inlet and smoke outlet on shell 100,
Smoke outlet on shell 100 is connected to smoke discharging pipe 101.Be provided with wind turbine 1 in shell 100, wind turbine 1 respectively with smoke inlet and smoke evacuation
Mouth is connected, and when wind turbine 1 works, can will be expelled to smoke evacuation from the oil smoke that smoke inlet enters in range hood cavity from smoke outlet
In pipeline 101, and smoke discharging pipe 101 is then connected with external common flue.
The Fan Regulation device of range hood in the present embodiment is also disposed in the shell of range hood, when in use,
The Fan Regulation device of the range hood is connected with the wind turbine 1 in range hood with cooperating, and then realizes to 1 turn of wind turbine
The adjusting control of speed.
The Fan Regulation device of the range hood includes gas pressure sensor 2, controller 3, rotation speed of fan adjusting circuit
4, control key 5, display 6 and filter circuit 7.
Wherein gas pressure sensor 2, should using smaller pressure difference sensor is influenced by ambient humidity, temperature and oil smoke
There is positive pressure mouth and negative pressure mouth, the smoke exhaust pipe which passes through the first conduit 21 and range hood on gas pressure sensor 2
Road 101 is connected, and the first conduit of this in the present embodiment 21 is connected to the connection close to range hood smoke outlet and smoke discharging pipe 101
Place.Negative pressure mouth is then connected by the second conduit 22 with the inner cavity of range hood, which can both be connected to wind turbine
It installs in spiral case, is also attached in the cavity between spiral case and shell.The signal wire 23 of gas pressure sensor 2 passes through filtering
Circuit 7 is connected with controller 3.Gas pressure sensor 2 can detect the pressure signal and negative pressure mouth of positive pressure mouth respectively
Pressure signal, and then be sent in controller 3, positive pressure mouth is calculated using controller 3 and bear after the filtered processing of pressure signal
Press the pressure difference value between mouth.
Controller 3 in the present embodiment uses existing such as microcontroller product.
Rotation speed of fan adjusts circuit 4 and then adjusts circuit 4 using existing rotation speed of fan, which adjusts circuit 4 and divide
It is not connected with controller 3 and wind turbine 1, when in use, which adjusts the control command that circuit 4 receives controller 3, real
Now to motor speed adjusting control.
6 controller 3 of display is connected, and according to the data that controller 3 transmits, range hood can be shown on display 6
Various working conditions.
Control key 5 is connected with controller 3 with the input control order into controller 3.In order to easy to operate and beautiful aobvious
Show that device 6 and control key 5 can be wholely set as touch screen.
Control key 5 in the present embodiment includes for opening and closing the on & off switch 51 of range hood, for realizing oil suction
The 1 rotating speed manual adjustment mode of wind turbine of smoke machine and the mode tuning key 52 of automatic adjustment pattern switching are used in 1 rotating speed hand of wind turbine
Multiple gear keys 53 of 1 rotating speed of wind turbine are adjusted under dynamic shaping modes.When in use, after Operation switch key 51 opens range hood,
Then operation mode adjusting key 52 can be by operating multiple gear keys 53 to realize 1 turn of wind turbine after being adjusted to manual mode
The manual adjusting of speed, controller 3 receive working according to corresponding rotating speed for 53 signal control wind turbine 1 of gear key, so then
Realize the traditional manual operation mode of range hood.If operation operation mode adjusting key 52 adjusts range hood to wind turbine
1 rotating speed automatically adjusts pattern, then realizes the automatic adjustment of wind turbine 1 by the following method.
As shown in figure 3, the rotation speed of fan Automatic adjustment method of range hood, includes the following steps：
Step 1, initialization；
Following initialization definitions are carried out in controller 3；
Multiple blower fan work grades for corresponding to different rotating speeds respectively are defined, according to rotating speed sequence from small to large, fanman
Make grade and is defined as L successively1、L2、L3、……、Lm、……、Ln, wherein n is natural number, 1≤m≤n；
P=Pout-Pin, the pressure difference of wherein P expression range hoods, PoutIndicate quiet in range hood smoke discharging pipe 101
Pressure value, Pout>=0, PinIndicate the static pressure in range hood inner cavity, Pin≤0；
R=[R1、R2、R3、……、Rm、……、Rn], Rm=(MinPm-Pm)/MinP, wherein MinP > P0, R is wind turbine
Performance down ratio value, RmIt is wind turbine 1 in blower fan work grade LmFan performance down ratio value under state, MinPmTo inhale
Static pressure in smoke exhaust pipe of range hood road 101 is 0, and wind turbine 1 is according to blower fan work grade LmWith normal performance working condition
Under range hood pressure difference absolute value, PmIt is wind turbine 1 according to blower fan work grade LmThe actual pressure differential of range hood when work
Value；
Define multiple performance down ratio threshold range [MinRj,MaxRj], j is natural number, MinRjIndicate j-th of decline
Proportion threshold value range inner blower performance down ratio value minimum value, MaxRjIndicate j-th of down ratio threshold range inner blower
It can down ratio value maximum value；
It is corresponding in different performance down ratio threshold range when defining wind turbine 1 according to level works such as each blower fan works
Fan performance adjustment factor inquiry table { K1,K2,K3,……,Km,……,Kn, Km=[Km1,Km2,Km3,……,Kmj], wherein Km
Indicate wind turbine 1 according to blower fan work grade LmWhen work in different performance down ratio threshold range corresponding fan performance tune
Save coefficient lookup table, KmjIndicate wind turbine 1 according to blower fan work grade LmIn performance down ratio threshold range [MinR when workj,
MaxRj] in corresponding fan performance adjustment factor inquiry table；Fan performance adjustment factor inquiry table in this implementation can compare
Fan performance down ratio value, which calculates, to be obtained, and can also be obtained according to test of many times, while according to different control accuracies, Km1,
Km2,Km3,……,KmjDifferent value can be taken, identical value can also be taken；
For each blower fan work grade, fan performance adjustment factor initial value K=1 is defined；
Define the corresponding threshold pressure differential range [K of each blower fan work gradei*MinPi,Ki*MaxPi], 1≤i≤n；KiIt indicates
Wind turbine 1 is according to blower fan work grade LiCorresponding fan performance adjusts system in different performance down ratio threshold range when work
Number；MinPiIndicate the pressure difference minimum value of range hood within the scope of i-th of threshold pressure differential, MaxPiIndicate i-th of threshold pressure differential range
The pressure difference maximum value of interior range hood；
Define unit timing section T, wind turbine automatic speed regulation number upper limit value Mmax, wind turbine automatic speed regulation number M, frequently adjust
Speed mark F；
Define fan performance down ratio lower threshold MIN_R；
Step 2, Operation switch key 51, controller 3 then control range hood and must electrically activate, at this point, wind turbine in controller 3
Energy adjustment factor is set to initial value K automaticallym=1, wind turbine automatic speed regulation number is set to initial value M=0, and frequent speed governing mark is set to 0,
That is F=0；
Operation mode adjusting key 52 is adjusted to 1 rotating speed of wind turbine automatic adjustment pattern；
According to the setting in controller 3, controller 3 controls motor speed and adjusts blower fan work grade L of the circuit to setm
The wind turbine 1 in range hood is opened in corresponding rotating speed control, is arranged with minimum blower fan work grade L in the present embodiment1It opens and inhales
Wind turbine 1 in kitchen ventilator；
After wind turbine 1 starts, then timing is carried out to the working time of wind turbine 1；
Step 3, gas pressure sensor 2 are acquired in real time in pressure signal and range hood at range hood smoke outlet
Pressure signal in chamber, and the pressure signal of acquisition is sent in controller 3；
Step 4, the pressure signal acquired to gas pressure sensor 2 are filtered to reduce disturbing factor to signal
The influence of accuracy, controller convert air pressure Value Data and then calculate the pressure signal that gas pressure sensor 2 acquires to and obtain
Take the positive pressure value P at range hood smoke outlet+And the negative pressure value P in range hood inner cavity-, and then calculate the reality of range hood
When pressure difference Pm=P+-P-；
Step 5, the real-time pressure difference P according to range hoodm, calculate blower fan work grade LmUnder the conditions of fan performance decline
Ratio value Rm, to judge whether the working performance of wind turbine 1 declines；
If it is not, then keeping current fan performance adjustment factor constant；
If it is, obtaining current wind according to performance down ratio threshold range and fan performance adjustment factor inquiry table
Machine property regulation COEFFICIENT Kmj, and then correct fan performance adjustment factor Km=Kmj；Compare R simultaneouslymAnd MIN_R, if Rm<
Clean prompting information is then sent to display 6 by MIN_R by controller 3, to prompt cleaning range hood；
Step 6 obtains corresponding threshold pressure differential range [K according to the current adjustment factor of wind turbine 1m*MinPm,Km*
MaxPm], compare Pm、Km*MinPm、Km*MaxPmSize；
If Km*MinPm≤Pm≤Km*MaxPm, then uncomfortable rectification campaign machine job class, corresponding controllers 3 control wind turbine 1 and press
Work is run according to former rotating speed；
If Pm< Km*MinPm, then judge whether current blower fan work grade is L1, if it is, keeping current wind
Machine job class, corresponding controllers 3 control wind turbine 1 and run work according to former rotating speed, if otherwise adjustment blower fan work grade is
Lm-1, corresponding controllers 3 export new 1 speed controling signal of wind turbine to wind turbine rotational speed regulation circuit 4, and rotation speed of fan adjusts circuit 4
The adjustment of rotational speed of control wind turbine 1 is that blower fan work grade falls to Lm-1Corresponding rotating speed；Wind turbine automatic speed regulation number M adds simultaneously
1；
If Pm> Km*MaxPm, then judge whether current blower fan work grade is Ln, if it is, keeping current wind
Machine job class, corresponding controllers 3 control wind turbine 1 and run work according to former rotating speed, if otherwise adjusted in blower fan work grade
It is upgraded to Lm+1, corresponding controllers 3 export new 1 speed controling signal of wind turbine to wind turbine rotational speed regulation circuit 4, and rotation speed of fan is adjusted
It is L that the adjustment of rotational speed that circuit 4 controls wind turbine 1, which is blower fan work grade,m+1Corresponding rotating speed, while wind turbine automatic speed regulation number M adds
1；
Judge each unit timing section T inner blower automatic speed regulation numbers M whether more than Mmax；
If it does, the judgement frequent speed governing of wind turbine, frequent speed governing mark F sets 1, i.e. F=1, as F=1, in the unit meter
When section T range in can only carry out blower fan work grade and rise to adjust；
If be less than, judge that wind turbine does not occur the case where frequent speed governing, wind turbine (1) can carry out blower fan work grade
Rise to adjust and can also carry out the decline adjusting of blower fan work grade；
After timing time reaches unit timing section T, then speed governing number is reset, and reenters next unit timing section
The timing of T；
So cycle carries out step 3 to step 6 until controller 3 receives the closing of the range hood of the input of on & off switch 51
Signal, wind turbine 1 are stopped, range hood power-off.
The rotation speed of fan Automatic adjustment method of the range hood is capable of the automatic speed regulation of timely, science realization wind turbine 1, greatly
The big effect for improving fume exhaust and mist extractor, reduces energy consumption on the basis of ensureing effective working efficiency.
Claims (7)
1. a kind of rotation speed of fan Automatic adjustment method of range hood, it is characterised in that：It is more using fan performance as parameter setting
A threshold pressure differential range, and then mark off the corresponding fanman for realizing different rotation speed of fan controls according to multiple threshold pressure differential ranges
Make grade；
Pressure signal at detection in real time and acquisition range hood smoke outlet and the pressure signal in range hood inner cavity, in turn
It calculates at range hood smoke outlet with the pressure difference value in range hood inner cavity using the real-time pressure difference as range hood；
Judge the threshold pressure differential range belonging to the real-time pressure difference of range hood, and then obtains the corresponding wind of threshold pressure differential range
Machine job class controls the rotating speed of wind turbine according to blower fan work grade adjust automatically；
Step 1, initialization；
Multiple blower fan work grades for corresponding to different rotating speeds respectively are defined, according to rotating speed sequence from small to large, blower fan work etc.
Grade is defined as L successively1、L2、L3、……、Lm、……、Ln, wherein n is natural number, 1≤m≤n；
P=Pout-Pin, the pressure difference of wherein P expression range hoods, PoutIndicate the static pressure in range hood smoke discharging pipe (101)
Value, Pout>=0, PinIndicate the static pressure in range hood inner cavity, Pin≤0；
R=[R1、R2、R3、……、Rm、……、Rn], Rm=(MinPm-Pm)/MinP, wherein MinP > P0, R is fan performance
Down ratio value, RmIt is wind turbine (1) in blower fan work grade LmFan performance down ratio value under state, MinPmFor in oil suction
Static pressure in smoke machine smoke discharging pipe (101) is 0, and wind turbine (1) is according to blower fan work grade LmWith normal performance shape
The pressure difference absolute value of range hood under state, PmIt is wind turbine (1) according to blower fan work grade LmThe reality of range hood when work
Pressure difference；
Define multiple performance down ratio threshold range [MinRj,MaxRj], j is natural number, MinRjIndicate j-th of down ratio
Threshold range inner blower performance down ratio value minimum value, MaxRjIt indicates under j-th of down ratio threshold range inner blower performance
Ratio value maximum value drops；
When defining wind turbine (1) according to level works such as each blower fan works, the corresponding wind in different performance down ratio threshold range
Machine property regulation coefficient lookup table { K1,K2,K3,……,Km,……,Kn, Km=[Km1,Km2,Km3,……,Kmj], wherein KmTable
Show wind turbine (1) according to blower fan work grade LmWhen work in different performance down ratio threshold range corresponding fan performance tune
Save coefficient lookup table, KmjIndicate wind turbine (1) according to blower fan work grade LmIn performance down ratio threshold range when work
[MinRj,MaxRj] in corresponding fan performance adjustment factor inquiry table；
For each blower fan work grade, fan performance adjustment factor initial value K=1 is defined；
Define the corresponding threshold pressure differential range [K of each blower fan work gradei*MinPi,Ki*MaxPi], 1≤i≤n；KiIndicate wind turbine
(1) according to blower fan work grade LiCorresponding fan performance adjusts system in different performance down ratio threshold range when work
Number；MinPiIndicate the pressure difference minimum value of range hood within the scope of i-th of threshold pressure differential, MaxPiIndicate i-th of threshold pressure differential range
The pressure difference maximum value of interior range hood；
Step 2 starts range hood, and fan performance adjustment factor is set to initial value Km=1；
With any blower fan work grade LmCorresponding rotating speed opens the wind turbine (1) in range hood；
Step 3, the in real time pressure signal at acquisition range hood smoke outlet and the pressure signal in range hood inner cavity；
Step 4 calculates the positive pressure value P at range hood smoke outlet according to the pressure signal in step 3+And range hood inner cavity
In negative pressure value P-, and then calculate the real-time pressure difference P of range hoodm=P+-P-；
Step 5, the real-time pressure difference P according to range hoodm, calculate blower fan work grade LmUnder the conditions of fan performance down ratio
Value Rm, to judge whether the working performance of wind turbine (1) declines；
If it is not, then keeping current fan performance adjustment factor constant；
If it is, obtaining current wind turbine according to performance down ratio threshold range and fan performance adjustment factor inquiry table
It can adjustment factor Kmj, and then correct fan performance adjustment factor Km=Kmj；
Step 6 obtains corresponding threshold pressure differential range [K according to the current adjustment factor of wind turbine (1)m*MinPm,Km*MaxPm], than
Compared with Pm、Km*MinPm、Km*MaxPmSize；
If Km*MinPm≤Pm≤Km*MaxPm, then uncomfortable rectification campaign machine job class, accordingly controls wind turbine (1) and is transported according to former rotating speed
Row work；
If Pm< Km*MinPm, then judge whether current blower fan work grade is L1, if it is, keeping current blower fan work
Grade accordingly controls wind turbine (1) and runs work according to former rotating speed, if otherwise adjustment blower fan work grade is Lm-1, corresponding to export
New wind turbine (1) speed controling signal, the adjustment of rotational speed to control wind turbine (1) fall to L as blower fan work gradem-1It is corresponding
Rotating speed；
If Pm> Km*MaxPm, then judge whether current blower fan work grade is Ln, if it is, keeping current blower fan work
Grade accordingly controls wind turbine (1) and runs work according to former rotating speed, if otherwise adjustment blower fan work grade rises to Lm+1, accordingly
Export new wind turbine (1) speed controling signal, using control the adjustment of rotational speed of wind turbine (1) as blower fan work grade be Lm+1It is corresponding
Rotating speed.
2. the rotation speed of fan Automatic adjustment method of range hood according to claim 1, it is characterised in that：In step 1,
Define unit timing section T, wind turbine automatic speed regulation number upper limit value Mmax, wind turbine automatic speed regulation number M, frequent speed governing identify F；
In step 2, after starting range hood, wind turbine automatic speed regulation number is set to initial value M=0, and frequent speed governing mark is set to 0, i.e. F
=0；
After wind turbine (1) starts, then timing is carried out to the working time of wind turbine (1)；
In step 6, often then wind turbine automatic speed regulation number adds 1 to adjustment primary air fan job class automatically, judges each unit meter
When section T inner blower automatic speed regulation numbers whether more than Mmax；
If it does, judgement wind turbine (1) frequent speed governing, frequent speed governing mark F sets 1, i.e. F=1, as F=1, in the unit meter
When section T range in can only carry out blower fan work grade and rise to adjust；
If be less than, judge that wind turbine (1) does not occur the case where frequent speed governing, wind turbine (1) can carry out blower fan work grade
Rise to adjust and can also carry out the decline adjusting of blower fan work grade；
After timing time reaches unit timing section T, then speed governing number is reset, and reenters next unit timing section T's
Timing, until closing wind turbine (1).
3. the rotation speed of fan Automatic adjustment method of range hood according to claim 1, it is characterised in that：In step 1
Define fan performance down ratio lower threshold MIN_R；After starting wind turbine (1), work as RmWhen < MIN_R, then cleaning oil suction is prompted
Smoke machine.
4. realizing the adjusting of the rotation speed of fan Automatic adjustment method of range hood as described in claims 1 to 3 any claim
Device is connect with wind turbine (1) to control wind turbine (1) work, it is characterised in that：Including gas pressure sensor (2), controller
(3), rotation speed of fan adjusts circuit (4) and control key (5)；
There is positive pressure mouth and negative pressure mouth, the positive pressure mouth to pass through the first conduit (21) and suction on the gas pressure sensor (2)
The smoke discharging pipe (101) of kitchen ventilator is connected, and the negative pressure mouth is connected by the second conduit (22) with the inner cavity of range hood,
The signal wire (23) of the gas pressure sensor (2) is connected with the controller (3)；
The rotation speed of fan adjusts circuit (4) and is connected respectively with according to the controller (3) with controller (3) and wind turbine (1)
Control command adjust wind turbine (1) rotating speed；
The control key (5) is connected with the controller (3) with the input control order into the controller (3).
5. regulating device according to claim 4, it is characterised in that：The gas pressure sensor (2) and controller (3)
Between be also associated with filter circuit (7).
6. regulating device according to claim 4, it is characterised in that：Further include be connected with the controller (3) it is aobvious
Show device (6).
7. regulating device according to claim 4, it is characterised in that：The control key (5) includes for opening and closing
The on & off switch (51) of range hood, wind turbine (1) the rotating speed manual adjustment mode for realizing range hood and automatic adjustment pattern
The mode tuning key (52) of switching, multiple gears for adjusting wind turbine (1) rotating speed under wind turbine (1) rotating speed manual adjustment mode
Key (53).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610871188.6A CN106287889B (en) | 2016-09-30 | 2016-09-30 | The rotation speed of fan Automatic adjustment method of range hood and the regulating device for realizing this method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610871188.6A CN106287889B (en) | 2016-09-30 | 2016-09-30 | The rotation speed of fan Automatic adjustment method of range hood and the regulating device for realizing this method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106287889A CN106287889A (en) | 2017-01-04 |
| CN106287889B true CN106287889B (en) | 2018-11-06 |
Family
ID=57716012
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610871188.6A Active CN106287889B (en) | 2016-09-30 | 2016-09-30 | The rotation speed of fan Automatic adjustment method of range hood and the regulating device for realizing this method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106287889B (en) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109114608B (en) * | 2017-06-26 | 2020-11-10 | 博西华电器（江苏）有限公司 | Control method for range hood and range hood |
| CN109028238B (en) * | 2018-09-29 | 2019-12-03 | 佛山市云米电器科技有限公司 | A kind of intelligent shift method with vision-based detection module kitchen ventilator |
| CN111623388B (en) * | 2019-02-28 | 2022-02-08 | 宁波方太厨具有限公司 | Self-adaptive control method for flow of range hood |
| CN110107934B (en) * | 2019-04-25 | 2020-08-11 | 宁波方太厨具有限公司 | Kitchen smoke exhaust system and method for controlling rotating speed of fan of range hood |
| CN110375362B (en) * | 2019-06-28 | 2020-08-11 | 宁波方太厨具有限公司 | Constant air volume control method for range hood |
| CN114060883A (en) * | 2021-10-28 | 2022-02-18 | 青岛海尔空调器有限总公司 | Control method and device for range hood, range hood and storage medium |
| CN114353145A (en) * | 2021-12-31 | 2022-04-15 | 北京金茂人居环境科技有限公司 | Kitchen internal and external air pressure balance control method, storage medium and electronic equipment |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08170846A (en) * | 1994-12-16 | 1996-07-02 | Tokyo Gas Co Ltd | Simultaneous air supply/exhaust range hood |
| DE10316571A1 (en) * | 2003-04-10 | 2004-10-28 | BSH Bosch und Siemens Hausgeräte GmbH | Control device for an extractor hood |
| KR100856489B1 (en) * | 2006-01-10 | 2008-09-04 | 주식회사 경동네트웍 | Accurate Pressure Sensor |
| CN103776076B (en) * | 2014-01-27 | 2017-01-04 | 西安交通大学 | Use the full-automatic continuous adjustable range hood of capacitance type sensor |
| CN105465854A (en) * | 2014-08-28 | 2016-04-06 | 博西华电器（江苏）有限公司 | Smoke lampblack machine, controlling device, and controlling method for smoke lampblack machine |
| CN105698332A (en) * | 2014-11-24 | 2016-06-22 | 深圳市共济科技有限公司 | Multi-stage automatic fan speed regulation device and speed regulation method |
-
2016
- 2016-09-30 CN CN201610871188.6A patent/CN106287889B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN106287889A (en) | 2017-01-04 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106287889B (en) | The rotation speed of fan Automatic adjustment method of range hood and the regulating device for realizing this method | |
| CN102589025B (en) | Fan speed adaptive regulation device of range hood and control method thereof | |
| CN110186092B (en) | Air volume control device and method of centralized smoke exhaust system and centralized smoke exhaust system | |
| CN104329708B (en) | Near-suction type oil smoke suction machine | |
| CN110107938B (en) | Central flue system and target air volume control method thereof | |
| CN106051875A (en) | Extractor hood with automatically controlled gears | |
| CN202470169U (en) | Device for adaptively adjusting fan speed of smoke exhauster | |
| CN206695187U (en) | A kind of cigarette stove linkage | |
| CN102022832A (en) | Water temperature control device and water temperature control method for gas water heater | |
| CN204373022U (en) | A kind of intelligent frequency-conversion range hood | |
| CN103216867A (en) | Range hood air volume and air pressure compensation system based on variable frequency motor and control method thereof | |
| CN103697517A (en) | Intelligent variable-frequency range hood | |
| CN105158504A (en) | Wind speed and wind pressure sensor for range hood and range hood | |
| CN205026824U (en) | Fresh air purifying system | |
| CN206207506U (en) | Range hood and constant air volume adjusting system thereof | |
| CN106705442A (en) | Gas water heater with self-adaption function | |
| CN202734006U (en) | Automatically air supplying system of smoke exhaust ventilator of kitchen | |
| CN204165106U (en) | Smoke exhaust ventilator | |
| CN204943602U (en) | Can the range hood of automatic open close | |
| CN206522901U (en) | Pressure-fired removes the new blower fan of haze and air port | |
| CN206055728U (en) | The rotation speed of fan self-checking device of range hood | |
| CN206247649U (en) | A kind of gas heater with adaptation function | |
| CN106755719A (en) | A kind of converter fan automatic speed regulation system | |
| CN203869130U (en) | Range hood with internal temperature probe | |
| CN206338832U (en) | A kind of blast detection automatic speed regulation circuit of lampblack absorber |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |