CN108253495A - A kind of kitchen ventilator that can improve pressure differential - Google Patents
A kind of kitchen ventilator that can improve pressure differential Download PDFInfo
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- CN108253495A CN108253495A CN201810188647.XA CN201810188647A CN108253495A CN 108253495 A CN108253495 A CN 108253495A CN 201810188647 A CN201810188647 A CN 201810188647A CN 108253495 A CN108253495 A CN 108253495A
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- Prior art keywords
- concentric tube
- oil smoke
- pressure differential
- separation assembly
- kitchen ventilator
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- 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
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Separating Particles In Gases By Inertia (AREA)
- Ventilation (AREA)
Abstract
A kind of kitchen ventilator that can improve pressure differential is provided with smoke machine main body and can improve the oil smoke separation assembly of pressure differential, and the transmission of oil smoke separation assembly is assemblied in smoke machine body interior.The rotating speed of the oil smoke separation assembly is 50r/min~30000r/min.The oil smoke separation assembly of the kitchen ventilator can rotate, and can greatly improve the speed of internal gas, so as to improve inside kitchen ventilator with the pressure differential of external environment, substantially increase oil absorbing effect.The oil smoke separation assembly also has generates additional centrifugal force to soot gas, can effectively remove soot particles, be avoided that and contacted containing a large amount of soot particles gases with wind wheel, greatly improves the separating effect of soot particles and reduces the noise generated due to wind wheel accumulates oil stain.
Description
Technical field
The present invention relates to kitchen ventilator field, more particularly to a kind of kitchen ventilator that can improve pressure differential.
Background technology
The range hood of the prior art only rely on substantially wind wheel rotation detach oil smoke, the internal pressure of range hood with
Ambient exterior atmospheric pressure difference is lacked, so that separating effect is low can only to remove fraction soot particles, the gas of discharge also remains largely
Soot particles, cause air pollution.
Therefore, in view of the shortcomings of the prior art, providing a kind of kitchen ventilator that can improve pressure differential to solve prior art deficiency
It is very necessary.
Invention content
A kind of kitchen ventilator that can improve pressure differential is provided it is an object of the invention to avoid the deficiencies in the prior art part.
The oil smoke separation assembly of the kitchen ventilator can rotate, and can greatly improve the speed of internal gas, so as to improve inside kitchen ventilator with
The pressure differential of external environment, substantially increases oil absorbing effect.
The above-mentioned purpose of the present invention is realized by following technological means.
A kind of kitchen ventilator that can improve pressure differential is provided, smoke machine main body is provided with the oil smoke that can improve pressure differential and detaches group
Part, the transmission of oil smoke separation assembly are assemblied in smoke machine body interior.
The rotating speed of the oil smoke separation assembly is 50r/min~30000r/min.
It is further preferred that the rotating speed of above-mentioned oil smoke separation assembly is 100r/min~20000r/min.
Preferably, above-mentioned oil smoke separation assembly is provided with oil smoke separation main body and variable speed electric motors, particularly, and oil smoke separation main body is with becoming
Speed motor is sequentially connected, and variable speed electric motors, particularly is electrically connected with external power supply.
Preferably, above-mentioned oil smoke separation main body is equipped with concentric tube, rotary shaft and the multiple eaves portion structures of a plurality of middle overlapping of axles,
Rotary shaft is fixedly connected respectively with one end of a plurality of concentric tube, and multiple eaves portion structures are in around setting and be fixedly installed in correspondence
Concentric tube the other end, rotary shaft and variable speed electric motors, particularly are sequentially connected.
Preferably, above-mentioned oil smoke separation assembly is provided with sheet metal, and sheet metal fixing assembling is in the outer of oil smoke separation assembly
Surface.
Lower section is defined as towards the side on ground when oil smoke separation assembly is installed, and therefrom the outside concentric tube of axis is successively
The 1st concentric tube is defined as ..., the i-th concentric tube ..., the (n-1)th concentric tube, the n-th concentric tube, and 2≤i≤n and n are
Positive integer.
The height of 1st concentric tube is H1..., the height of the i-th concentric tube is Hi..., the height of the (n-1)th concentric tube
It spends for Hn-1, the height of the n-th concentric tube is Hn, H1Value it is maximum, HnValue it is minimum.
Preferably, above-mentioned oil smoke separation main body is additionally provided with vortex generating means group, and vortex generating means group is fixedly mounted
In the outer surface of concentric tube and the junction of eaves portion structure and concentric tube is surrounded on, vortex generating means group is simultaneously installed on eaves portion knot
The upper surface of structure.
Each vortex generating means group occurs sub-device by one or more vortex of the same eaves portion structure in place and forms.
Preferably, above-mentioned sheet metal fixing assembling is in the surface of vortex generating means group.
Preferably, above-mentioned vortex generating means group is provided with m, and m is the arbitrary positive integer more than 0, and m vortex fills
Group is put to be fixedly installed in the outer surface of concentric tube respectively and be surrounded on the junction of eaves portion structure and concentric tube.
Preferably, above-mentioned concentric tube is the line segment that is made of multistage broken line around concentric tube formed by axis one week, with one heart
For vortex position occurs for the position that the adjacent two lines section of inside pipe wall intersects.
Preferably, the diameter of one end of above-mentioned concentric tube is more than the diameter of the other end.
Preferably, the other end of above-mentioned concentric tube is at least fixedly connected there are one eaves portion structure.
Preferably, above-mentioned concentric tube is provided with disturbing flow device, and disturbing flow device is seamless around the one end for being connected to concentric tube
End.
Preferably, above-mentioned eaves portion structure setting has multiple through-holes.
Preferably, above-mentioned smoke machine main body is provided with shell, exhausting component and oil collector sump tank, and exhausting component fixing assembling is in outer
The inside of shell, the transmission of oil smoke separation assembly are assemblied in the inside of shell and positioned at the lower sections of exhausting component, and oil collector sump tank is assemblied in
The bottom of shell.
Preferably, above-mentioned shell be provided with multiple housing inlets and with the matched annular lamina of multiple housing inlets, ring
Shape piece be fixedly mounted or be integrally connected to the corresponding inner surface of shell and with positioned at the edge of housing inlet, annular lamina with it is outer
Shell air inlet corresponds.
Preferably, above-mentioned exhausting component setting wind turbine, wind wheel and spiral case, wind turbine and wind wheel are assemblied in inside spiral case, wind wheel
It being sequentially connected with wind turbine, spiral case is fixedly installed in the inside of shell, and the air inlet of spiral case is communicated with the gas outlet above concentric tube,
The gas outlet of spiral case is communicated with the gas outlet of smoke machine main body.
A kind of kitchen ventilator that can improve pressure differential of the present invention is provided with smoke machine main body and can improve the oil smoke point of pressure differential
From component, the transmission of oil smoke separation assembly is assemblied in smoke machine body interior.The rotating speed of the oil smoke separation assembly for 50r/min~
30000r/min.The oil smoke separation assembly of the kitchen ventilator can rotate, and can greatly improve the speed of internal gas, so as to improve oil
With the pressure differential of external environment inside smoke machine, oil absorbing effect is substantially increased.The oil smoke separation assembly, which also has, produces soot gas
Raw additional centrifugal force, can effectively remove soot particles, be avoided that and contacted containing a large amount of soot particles gases with wind wheel, greatly improved
The noise that the separating effect of soot particles and reduction generate due to wind wheel accumulates oil stain.
Description of the drawings
Using attached drawing, the present invention is further illustrated, but the content in attached drawing does not form any limit to the present invention
System.
Fig. 1 is a kind of structure diagram of kitchen ventilator embodiment 1 that can improve pressure differential of the present invention.
Fig. 2 is oil smoke separation assembly rotating speed and wind speed relational graph.
Fig. 3 is that the oil smoke in Fig. 1 detaches agent structure schematic diagram.
Fig. 4 is the high-level schematic of concentric tube in Fig. 1.
Fig. 5 is the shell of the present invention and the stereoscopic schematic diagram of oil collector sump tank.
Fig. 6 is the oil smoke body gas flow simulating figure of the present invention.
Fig. 7 is the oil smoke separation assembly structure diagram of embodiment 3.
In Fig. 1 to 7, include：
Position 1112, rotation occur for oil smoke separation assembly 1, oil smoke separation main body 11, concentric tube 111, disturbing flow device 1111, vortex
Shaft 112, eaves portion structure 113, through-hole 1131, vortex generating means group 114, variable speed electric motors, particularly 12, sheet metal 13,
Shell 2, housing inlet 21, annular lamina 22,
Oil collector sump tank 3, exhausting component 4, wind wheel 41, wind turbine 42, spiral case 43.
Specific embodiment
Technical scheme of the present invention is described further with the following Examples.
Embodiment 1.
A kind of kitchen ventilator that can improve pressure differential as shown in Figures 1 to 6, is provided with smoke machine main body and can improve pressure differential
Oil smoke separation assembly 1, the transmission of oil smoke separation assembly 1 are assemblied in smoke machine body interior.Currently preferred oil smoke separation assembly 1
Rotating speed is the arbitrary rotating speed of 100r/min~20000r/min, or the arbitrary rotating speed of 50r/min~30000r/min, tool
Depending on the implementation condition of body is with actual conditions.
It is lower according to Bernoulli's theorem internal pressure when the wind speed of the higher internal gas of rotating speed is bigger, therefore and external rings
Pressure between border is bigger, so as to which the soot gas of external environment tends to enter inside oil smoke, oil smoke separation assembly 1
Rotating speed and the relationship of internal gas speed are as shown in Figure 2.
Oil smoke separation assembly 1 is provided with oil smoke separation main body 11 and variable speed electric motors, particularly 12, oil smoke separation main body 11 and speed change electricity
Machine 12 is sequentially connected, and variable speed electric motors, particularly 12 is electrically connected with external power supply.
Oil smoke separation main body 11 is equipped with concentric tube 111, rotary shaft 112 and the multiple eaves portion structures 113 of a plurality of middle overlapping of axles,
Rotary shaft 112 is fixedly connected respectively with one end of a plurality of concentric tube 111, and multiple eaves portion structures 113 are in around setting and fixed
The other end of corresponding concentric tube 111 is installed on, rotary shaft 112 is sequentially connected with variable speed electric motors, particularly 12.
When oil smoke separation assembly 1 is installed lower section, and the therefrom outside concentric tube 111 of axis are defined as towards the side on ground
Be defined as the 1st concentric tube successively ..., the i-th concentric tube ..., the (n-1)th concentric tube, the n-th concentric tube, and 2≤i≤n and
N is positive integer.
The height of 1st concentric tube is H1..., the height of the i-th concentric tube is Hi..., the height of the (n-1)th concentric tube
It spends for Hn-1, the height of the n-th concentric tube is Hn, H1Value it is maximum, HnValue it is minimum.
Oil smoke separation main body 11 is additionally provided with vortex generating means group 114, and vortex generating means group 114 is fixedly installed in together
The outer surface of heart pipe 111 and the junction for being surrounded on eaves portion structure 113 and concentric tube 111, vortex generating means group 114 are simultaneously installed
In the upper surface of eaves portion structure 113.Each vortex generating means group 114 is by one of the same eaves portion structure 113 in place or more
Sub-device composition occurs for a vortex.
Vortex generating means group 114 is provided with m, and m is the arbitrary positive integer more than 0, m vortex generating means group 114
It is fixedly installed in the outer surface of concentric tube 111 respectively and is surrounded on the junction of eaves portion structure 113 and concentric tube 111.The present invention
Vortex generating means group 114 effect be make soot gas generate vortex, so as to improve the ability of de-oiling.
The concentric tube 111 of the n=3 of the present embodiment, i.e. the present embodiment are provided with 3.The present embodiment m=2, i.e. vortex occur
Device group 114 is set as 2, and one is set to the 3rd concentric tube, another is set to the 2nd concentric tube.The concentric tube of the present invention
111 numbers can be arbitrary positive integer, and it is arbitrary that vortex generating means group 114 can be less than or equal to 111 number of concentric tube
Positive integer.
Concentric tube 111 is the line segment that is made of multistage broken line around concentric tube 111, concentric tube 111 formed by axis one week
For vortex position 1112 occurs for the position that the adjacent two lines section of inner wall intersects.The effect of 111 shape of concentric tube of the present invention is
Soot gas can be made to generate vortex in 111 inner wall of concentric tube, improve the efficiency of removing oil smoke.
The diameter of one end of concentric tube 111 is more than the diameter of the other end.One end of concentric tube 111 is connects with exhausting component 4
The one end connect, as 111 gas outlet of concentric tube, the other end of concentric tube 111 is the air inlet of concentric tube 111, according to venturi
Effect is it is found that the bigger flow velocity of area that flows through of fluid is smaller, i.e., the speed of one end of gas concentric pipe 111 is more than concentric tube 111
Other end speed.Again according to Bernoulli's theorem it is found that the speed of gas to get over high pressure smaller, therefore concentric tube 111 and exhausting
The end pressure that component 4 connects is big, and the pressure of the air inlet of concentric tube 111 is small, so as to increase the air inlet of concentric tube 111 with
The pressure differential of external environment from soot gas is promoted to enter, improves oil absorbing effect.
The other end of the concentric tube 111 of the present invention can be at least fixedly connected there are one eaves portion structure 113, can also be concentric
The other end of pipe 111 is only fixedly connected with an eaves portion structure 113.The other end of 1st concentric tube of the present embodiment is connected with two
Eaves portion structure 113.Two eaves portion structures 113 effect of 1st concentric tube connection be the reduction of the 1st concentric tube and the 2nd concentric tube it
Between spatial volume, so as to reduce the area of the air inlet of the 2nd concentric tube, improve gas admission velocity, increase concentric tube 111
The internal pressure differential with exterior space.
Concentric tube 111 is provided with disturbing flow device 1111, and disturbing flow device 1111 is seamless around being connected to the one of concentric tube 111
The end at end.The effect of disturbing flow device 1111 is that soot gas is made to generate vortex, so as to improve the ability of de-oiling.
Eaves portion structure 113 is provided with multiple through-holes 1131.The effect of through-hole 1131 is can be rotated in oil smoke separation assembly 1
When, the elaioleucite of bulky grain will be pooled, is detached from inside oil smoke separation assembly 1, greatly improves the separating effect of soot particles.
Smoke machine main body is provided with shell 2, exhausting component 4 and oil collector sump tank 3, and 4 fixing assembling of exhausting component is in shell 2
Portion, oil smoke separation assembly 1 is driven the inside for being assemblied in shell 2 and the lower section for being located at exhausting component 4, oil collector sump tank 3 are assemblied in outer
The bottom of shell 2.
Shell 2 be provided with multiple housing inlets 21 and with multiple 21 matched annular laminas 22 of housing inlet, annular lamina
22 integrally connected shell, 2 corresponding inner surface and with positioned at the edge of housing inlet 21, annular lamina 22 and housing inlet 21
It corresponds, annular lamina 22 of the invention can also be fixedly installed in shell, depending on specific embodiment is with performance.
The effect of annular lamina 22 is that soot gas is made to generate vortex, while prevent soot particles from throwing away again when entering shell 2
During oil smoke separation assembly 1 exterior space is thrown away from the housing inlet 21 of shell 2.
Exhausting component 4 sets wind turbine 42, wind wheel 41 and spiral case 43, wind turbine 42 and wind wheel 41 to be assemblied in inside spiral case 43, wind
Wheel 41 is sequentially connected with wind turbine 42, and spiral case 43 is fixedly installed in the inside of shell 2, on the air inlet of spiral case 43 and concentric tube 111
The gas outlet of side communicates, and the gas outlet of spiral case 43 is communicated with the gas outlet of smoke machine main body.
The operation principle of the kitchen ventilator is：Kitchen ventilator is opened, motor drives oil smoke separation assembly 1, the wind wheel of exhausting component 4
41 rotate simultaneously, and soot particles are by seven layer separations inside kitchen ventilator, and most almost the gas of cleaning is arranged again through gas outlet finally
Go out.This seven layer separation is specific as follows：
First layer separation, inertial separation：Oil smoke enters via the housing inlet 21 of shell 2 inside smoke machine, and oil smoke enters
Enter annular lamina 22 after housing inlet 21, because of 2 inside of shell and 21 area of pressure differential and housing inlet of external environment
Cataclysm, air velocity can accelerate, and moment of inertia also relatively increases.And oil smoke can form very thin around annular lamina 22
Boundary layer, and because the housing inlet 21 and annular lamina 22 of shell 2 are in angle, oil smoke is forced to flow downward along annular lamina 22
Oil smoke separation assembly 1 is just up flowed into afterwards, therefore heavier oil separates in downward inertia motion with crude oil plume field
The oil collector sump tank 3 in 2 bottom of shell is collected in movement down, realizes first time inertial separation.
Second layer separation, cyclonic separation：Soot particles by the first layer separation are in the direction of annular lamina 22 by lower turn
Flowing in further occur flow field separation, soot particles flow field detach under cause unsteady flow field, be further formed vortex.
Flow field or vortex can interact influence with neighbouring flow field or vortex, and the flow field for not stopping spinning is formed in annular lamina 22, this
When rotating vortex reach maximum vorticity.The lighter oil smoke of remaining part can not be parked in the rotating vortex accumulation of annular lamina 22, when
When running up to constant weight, flow field branch is unable to hold out the weight of oil droplet, will fall downwards or flow to oil collector sump tank along annular lamina 22
3。
Third layer separation, centrifugal force separate：Eaves portion structure 113 follows the rotation of concentric tube 111 to form centrifugal force, centrifugal force with
The attraction interaction of exhausting component 4.After second detaches, the lighter oil smoke of remaining part is entering concentric tube 111
When first touch the outermost end of eaves portion structure 113 and enter back into concentric tube 111, the centrifugal force of 113 outermost end of eaves portion structure can be portion
Shunting body or soot particles are taken away or stop into 111 inside of concentric tube and move outward, then got rid of with higher tangential velocity
Go out, being thrown out of particle can fall in annular lamina 22, and oil collector sump tank 3 is flow to finally along annular lamina 22.
4th layer separation, inertial separation and centrifugal force separate：After third layer separation, the oil smoke of remaining lighter weight is same
When acted on by centrifugal force and attraction, but opposite attraction is more than centrifugal force.A portion of these oil smoke can be through
Through-hole 1131 is crossed to flow to adjacent eaves portion structure 113, because effect of inertia pool with other oil smoke or soot particles it is larger
Soot particles flow down, and because of centrifugal force effect, soot particles and to be thrown away compared with high tangential velocity finally along annular lamina 22
It flow to oil collector sump tank 3.
Layer 5 detaches, the cyclone centrifugal force of concentric tube 111 and the secondary generation that is vortexed：111 inner wall of concentric tube rotates to be formed
Cyclone, concentric tube 111 be low-pressure area under the action of the centrifugal force, fluids within pipes or particle etc. toward duct wall move, tube wall shape
Into high tangential velocity, part oil smoke is blocked flowing up.It is vortexed in addition, remaining oil smoke can be formed in vortex generator,
Do not stop spinning, capture oil smoke and oil smoke is not allowed to flee from pipeline.After attraction and centrifugal force remove, the secondary vortices of spinning are not stopped
The oil smoke for flowing and high tangential motion being carried out in tube wall can be collected because gravity flows downward to oil collector sump tank 3 along inner tubal wall.
Layer 6 detaches, and disturbing flow device 1111 detaches：The disturbing flow device 1111 of 111 one end of concentric tube produces remaining oil smoke
Hair tonic life flow field separation, detaches by flow field, part oil smoke because stopping during the unstability in flow field not toward flowing in length and certainly
The vortex of rotation captures oil smoke.
Layer 7 detaches, 41 centrifugal force separate of wind wheel：After the first six layer separation, it is left a small amount of very light soot particles
The wind wheel 41 of exhausting component 4 is sucked due to pressure differential, the wind wheel 41 of rotation forms centrifugal force and remaining a small amount of soot particles are got rid of
Onto the inner wall of wind turbine 42, last almost clean gas is discharged external through gas outlet.
The oil smoke separation assembly 1 of the kitchen ventilator can rotate, and can greatly improve the speed of internal gas, so as to improve oil smoke
With the pressure differential of external environment inside machine, oil absorbing effect is substantially increased.The oil smoke separation assembly 1, which also has, generates soot gas
Additional centrifugal force can effectively remove soot particles, be avoided that and contacted containing a large amount of soot particles gases with wind wheel 41, greatly improved
The noise that the separating effect of soot particles and reduction generate due to wind wheel 41 accumulates oil stain.
Embodiment 2.
A kind of kitchen ventilator that can improve pressure differential, other features are same as Example 1, the difference lies in：The present embodiment
N=4, i.e. the concentric tube 111 of the present embodiment is provided with 4.The present embodiment m=2, i.e. vortex generating means group 114 are set as 2
A, one is set to the 4th concentric tube, another is set to the 3rd concentric tube.The concentric tube 111 of the present embodiment and eaves portion knot simultaneously
Structure 113 corresponds.
This can improve the kitchen ventilator of pressure differential compared with Example 1, increase a concentric tube 11111, that is, increase
Spatial volume of the oil smoke separation assembly 1 inside shell 2 so as to reduce the area of 111 air inlet of concentric tube, improves gas
Admission velocity increases by 111 inside of concentric tube and the pressure differential of exterior space, so as to improve the rate of departure of soot particles.
Embodiment 3.
A kind of kitchen ventilator that can improve pressure differential, as shown in fig. 7, other features are same as Example 1, difference exists
In：The oil smoke separation assembly 1 of the present embodiment is additionally provided with sheet metal 13, and 13 fixing assembling of sheet metal is in oil smoke separation assembly 1
Outer surface.The effect of sheet metal 13 is the relatively high oil smoke of temperature by can be because of sheet metal during sheet metal 13 made of metal material
13 surface temperature is low and condenses so as to detach oil smoke.13 fixing assembling of sheet metal is in the surface of vortex generating means group 114.
Compared with Example 1, the soot gas of the present embodiment easily condenses, and the deoiling effect of the kitchen ventilator is more preferable.
Finally it should be noted that the above embodiments are merely illustrative of the technical solutions of the present invention rather than the present invention is protected
The limitation of range, although being explained in detail with reference to preferred embodiment to the present invention, those of ordinary skill in the art should manage
Solution, can be modified or replaced equivalently technical solution of the present invention, without departing from the essence and model of technical solution of the present invention
It encloses.
Claims (10)
1. a kind of kitchen ventilator that can improve pressure differential, it is characterised in that：It is provided with smoke machine main body and the oil smoke of pressure differential can be improved
Separation assembly, the transmission of oil smoke separation assembly are assemblied in smoke machine body interior；
The rotating speed of the oil smoke separation assembly is 50r/min~30000r/min.
2. a kind of kitchen ventilator that can improve pressure differential according to claim 1, it is characterised in that：The oil smoke separation assembly
Rotating speed be 100r/min~20000r/min.
3. a kind of kitchen ventilator that can improve pressure differential according to claim 1, it is characterised in that：The oil smoke separation assembly
Oil smoke separation main body and variable speed electric motors, particularly are provided with, oil smoke separation main body is sequentially connected with variable speed electric motors, particularly, variable speed electric motors, particularly and external electrical
Source is electrically connected.
4. a kind of kitchen ventilator that can improve pressure differential according to claim 3, it is characterised in that：The oil smoke detaches main body
Be equipped with concentric tube, rotary shaft and the multiple eaves portion structures of a plurality of middle overlapping of axles, rotary shaft respectively with one end of a plurality of concentric tube
It is fixedly connected, multiple eaves portion structures are in around the other end for setting and being fixedly installed in corresponding concentric tube, rotary shaft and speed change
Motor drive connects；
The oil smoke separation assembly is provided with sheet metal, and sheet metal fixing assembling is in the outer surface of oil smoke separation assembly.
5. a kind of kitchen ventilator that can improve pressure differential according to claim 4, it is characterised in that：Oil smoke separation assembly is pacified
Lower section is defined as towards the side on ground during dress, and therefrom the outside concentric tube of axis is defined as the 1st concentric tube successively ...,
I-th concentric tube ..., the (n-1)th concentric tube, the n-th concentric tube, and 2≤i≤n and n are positive integer；
The height of 1st concentric tube is H1..., the height of the i-th concentric tube is Hi..., the height of the (n-1)th concentric tube is
Hn-1, the height of the n-th concentric tube is Hn, H1Value it is maximum, HnValue it is minimum.
6. a kind of kitchen ventilator that can improve pressure differential according to claim 5, it is characterised in that：The oil smoke detaches main body
Vortex generating means group is additionally provided with, vortex generating means group is fixedly installed in the outer surface of concentric tube and is surrounded on eaves portion structure
With the junction of concentric tube, vortex generating means group and the upper surface for being installed on eaves portion structure；
Each vortex generating means group occurs sub-device by one or more vortex of the same eaves portion structure in place and forms.
7. a kind of kitchen ventilator that can improve pressure differential according to claim 6, it is characterised in that：The sheet metal fixes dress
Surface assigned in vortex generating means group.
8. a kind of kitchen ventilator that can improve pressure differential according to claim 7, it is characterised in that：The vortex generating means
Group is provided with m, and m is the arbitrary positive integer more than 0, and m vortex generating means group is fixedly installed in the appearance of concentric tube respectively
Face and the junction for being surrounded on eaves portion structure and concentric tube.
9. a kind of kitchen ventilator that can improve pressure differential according to claim 8, it is characterised in that：The concentric tube is by more
Concentric tube formed by the circular axis of line segment that section broken line forms one week, the position that the adjacent two lines section of concentric inside pipe wall intersects is
Position occurs for vortex；
The diameter of one end of the concentric tube is more than the diameter of the other end；
The other end of the concentric tube is at least fixedly connected there are one eaves portion structure；
The concentric tube is provided with disturbing flow device, and disturbing flow device is seamless around the end of the one end for being connected to concentric tube；
The eaves portion structure setting has multiple through-holes.
10. a kind of kitchen ventilator that can improve pressure differential according to claim 9, it is characterised in that：The smoke machine main body is set
Shell, exhausting component and oil collector sump tank are equipped with, exhausting component fixing assembling is in the inside of shell, the transmission assembling of oil smoke separation assembly
In the inside of shell and positioned at the lower section of exhausting component, oil collector sump tank is assemblied in the bottom of shell；
The shell be provided with multiple housing inlets and with the matched annular lamina of multiple housing inlets, annular lamina be fixedly mounted
Or be integrally connected to the corresponding inner surface of shell and with positioned at the edge of housing inlet, annular lamina with housing inlet one by one
It is corresponding；
The exhausting component setting wind turbine, wind wheel and spiral case, wind turbine and wind wheel are assemblied in inside spiral case, and wind wheel connects with wind turbine transmission
It connects, spiral case is fixedly installed in the inside of shell, and the air inlet of spiral case is communicated with the gas outlet above concentric tube, the gas outlet of spiral case
It is communicated with the gas outlet of smoke machine main body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810188647.XA CN108253495B (en) | 2018-03-07 | 2018-03-07 | Range hood capable of improving pressure difference |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810188647.XA CN108253495B (en) | 2018-03-07 | 2018-03-07 | Range hood capable of improving pressure difference |
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| Publication Number | Publication Date |
|---|---|
| CN108253495A true CN108253495A (en) | 2018-07-06 |
| CN108253495B CN108253495B (en) | 2023-01-03 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810188647.XA Active CN108253495B (en) | 2018-03-07 | 2018-03-07 | Range hood capable of improving pressure difference |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2210448A (en) * | 1987-09-30 | 1989-06-07 | Tiong Ee Ong | Cooker hood with oil extraction |
| US5395410A (en) * | 1993-12-21 | 1995-03-07 | Jang; Sun-Sing | Fume exhauster |
| CN2348289Y (en) * | 1998-10-28 | 1999-11-10 | 卞应元 | Cooking fume collecting air exhauster |
| CN205842814U (en) * | 2016-07-14 | 2016-12-28 | 黄震 | A kind of smoke exhaust ventilator reducing environmental pollution |
-
2018
- 2018-03-07 CN CN201810188647.XA patent/CN108253495B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2210448A (en) * | 1987-09-30 | 1989-06-07 | Tiong Ee Ong | Cooker hood with oil extraction |
| US5395410A (en) * | 1993-12-21 | 1995-03-07 | Jang; Sun-Sing | Fume exhauster |
| CN2348289Y (en) * | 1998-10-28 | 1999-11-10 | 卞应元 | Cooking fume collecting air exhauster |
| CN205842814U (en) * | 2016-07-14 | 2016-12-28 | 黄震 | A kind of smoke exhaust ventilator reducing environmental pollution |
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| Publication number | Publication date |
|---|---|
| CN108253495B (en) | 2023-01-03 |
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