CN208139354U - A kind of novel center circle cellular type rectification plate of range hood - Google Patents
A kind of novel center circle cellular type rectification plate of range hood Download PDFInfo
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- CN208139354U CN208139354U CN201820192441.XU CN201820192441U CN208139354U CN 208139354 U CN208139354 U CN 208139354U CN 201820192441 U CN201820192441 U CN 201820192441U CN 208139354 U CN208139354 U CN 208139354U
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- oil smoke
- air draft
- cowling panel
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- cover
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Abstract
The utility model discloses a kind of novel center circle cellular type rectification plate of range hood, the surrounding annular air draft region including rectangular cowling panel (1) and oil smoke shroud rim (3) and oil smoke cover cover mouth；Center hole (2) are provided on the rectangular cowling panel (1)；The center hole (2) is directly against wind passage mouth, air draft, center air draft in generation, the oil smoke air-flow that left kitchen range or right kitchen range largely rise is directed to oil smoke cover center quickly to siphon away, uniform wind speed existing for the surrounding annular air draft region of the oil smoke cover cover mouth (4) siphons away remaining a small amount of oil smoke at oil smoke shroud rim (3), prevents fumes escaping.Compared with prior art, the utility model can improve original cowling panel oil smoke trapping path, obtain better oil smoke trapping effect, improve oil smoke arresting efficiency.
Description
Technical field
The present invention relates to field of kitchen electric appliance, more particularly to the household cooker hood with cowling panel.
Background technique
Cooking fume pollutant can cause to seriously affect to the physical and mental health of Kitchen hygiene environment and operator.With people
Improvement of living standard, more stringent requirements are proposed to Air Quality in Kitchen by people.Improve the contaminant trapping energy of kitchen ventilator
Power can significantly improve Kitchen hygiene environment, reduce the health threat to kitchen operation personnel, while reducing cooking fume pair
The pollution of atmospheric environment, is of great significance.
Kitchen ventilator is made of blower and petticoat pipe, and the structure type of petticoat pipe influences the distribution of air-flow, to affect kitchen ventilator
Oil smoke trapping effect.Ventilation velocity positioned at common petticoat pipe cover mouth face is unevenly distributed, and average ventilation velocity is smaller.If in cover
One piece of cowling panel (also referred to as smoke deflector, wherein rectangular relatively conventional) is arranged in mouth face, then cover mouth air draft region will be reduced to petticoat pipe
The annular region that edge and cowling panel edge are constituted, air draft wind speed greatly increase, along cowling panel wall surface stream after gas stream of pollution rising
To cover mouth air draft region, air draft air current composition is optimized；Improve oil smoke arresting efficiency.Currently, rectification plate technique is in practical life
It is also widely applied in production.
The range hood for having cowling panel currently on the market is that one piece of left side is arranged in body face exhaust fume collecting hood air inlet position
Right symmetrical smoke deflector, such as Chinese patent 200910096759.3 (CN101514823), 201620176406.X
(CN205402856U).However, household gas range is usually dual-range-head at present, in daily cooking process, since chief cooker is usual
Only one, only uses a kitchen range generally to carry out the biggish operation of the fume pollutions amount such as cooking or frying, another kitchen range
Simple operations, the fume pollution amounts of generation such as idle or progress boiling are smaller.It is necessary to be carried out according to actual use feature to it
It improves, to reach better oil smoke trapping effect, specific aim improves oil smoke arresting efficiency.
Oil smoke oil smoke arresting efficiency is divided into arresting efficiency of oil smoke and two by Chinese patent 201711254268.8
Secondary arresting efficiency.Wherein as an arresting efficiency becomes larger, secondary arresting efficiency becomes smaller, and in secondary arresting efficiency and kitchen room
Oil smoke concentration is directly related, and secondary arresting efficiency is bigger, and oil smoke concentration is higher in the room of kitchen.Therefore, oil smoke is improved once to trap
Efficiency is to develop the core content of efficient kitchen ventilator.This patent is imitated using the rectification of an arresting efficiency evaluation rectification plate of range hood
Fruit.
Summary of the invention
It is an object of the invention to overcome the shortcomings of prior art, a kind of novel center hole rectification plate of range hood is proposed,
By designing a center hole, realizes more effective cowling panel oil smoke and trap new path.
A kind of novel center hole rectification plate of range hood schematic diagram cowling panel of the invention, including rectangular cowling panel 1 and oil
The surrounding annular air draft region at petticoat pipe edge 3 and oil smoke cover cover mouth；Center hole 2 is provided on the rectangular cowling panel 1；It is described
Center hole 2 is directly against wind passage mouth, air draft, center air draft in generation, the oil smoke that left kitchen range or right kitchen range are largely risen
Air-flow is directed to oil smoke cover center and quickly siphons away, uniform wind speed existing for the surrounding annular air draft region of the oil smoke cover cover mouth,
Remaining a small amount of oil smoke is siphoned away from oil smoke shroud rim 3, prevents fumes escaping.
Compared with prior art, the present invention can improve original cowling panel oil smoke trapping path, obtain better oil smoke and catch
Collect effect, improves oil smoke arresting efficiency.
Detailed description of the invention
Fig. 1 is a kind of novel center hole rectification plate of range hood schematic diagram of the invention；
Fig. 2 is the kitchen model schematic for simplation verification of the present invention；
Fig. 3 is the original cowling panel kitchen ventilator and novel center hole cowling panel kitchen ventilator mould for simplation verification of the present invention
Type figure, (3a) original cowling panel kitchen ventilator model, (3b) novel center hole cowling panel kitchen ventilator model；
Fig. 4 is the analog result figure of arresting efficiency of original cowling panel and novel center hole cowling panel；
Fig. 5 be under same traffic the kitchen ventilator of the kitchen ventilator of original cowling panel and novel center hole cowling panel in room
The flow field simulation speed cloud atlas in the section Y=1.55m；(5a) original cowling panel kitchen ventilator flow field simulation speed cloud atlas, (5b) is novel
Center hole cowling panel kitchen ventilator model flow field simulation speed cloud atlas；
Fig. 6 is oil smoke concentration analog result cloud of the kitchen ventilator in the room section Y=1.55m of novel center hole cowling panel
Figure.
Appended drawing reference：1, rectangular cowling panel, 2, center hole, 3, oil smoke shroud rim, 4, oil smoke cover cover mouth.
Specific embodiment
The present invention is described in detail with reference to the accompanying drawings and detailed description.Following embodiment is only used for more clear
Illustrate to Chu technical solution of the present invention, and not intended to limit the protection scope of the present invention.
As shown in Figure 1, being a kind of novel center hole rectification plate of range hood schematic diagram cowling panel schematic diagram of the invention.It should
Novel rectifying plate includes now widely used rectangular cowling panel 1 and oil smoke shroud rim 3；At rectangular cowling panel center setting center
Circular hole 2 (i.e. the oval opening at cowling panel center), directly against wind passage mouth, ventilation velocity is larger in generation, the air draft at center
The oil smoke air-flow that left kitchen range or right kitchen range largely rise is directed to oil smoke cover center quickly to siphon away；Four chow ring of oil smoke cover cover mouth
There is also uniform wind speed in shape air draft region, and remaining a small amount of oil smoke is siphoned away from oil smoke cover porch to be prevented from escaping.
Novel center hole rectification plate of range hood improves oil smoke trapping path, and oil smoke can be effectively controlled, and realization is efficiently caught
Collection.
The present invention is applied in kitchen model as shown in Figure 2, carries out simplation verification to its arresting efficiency effect of optimization.Mould
Quasi- verification process is as follows：
It will be such as original square cowling panel kitchen ventilator model in Fig. 3 and with novel center hole cowling panel kitchen ventilator model point
Not Jia Ru kitchen model carry out CFD simulation, center hole area be 0.02m2, account for rectification plate suqare about 10%.Range hood is whole
Flowing plate is different, and other conditions and setting are consistent.Smoke particle object is loaded after the convergence of flow field, uses Chinese patent
Its particle capture efficiency is calculated in the simulation of 201711254268.8 methods, is illustrated in figure 4 two kinds of cowling panels and once traps effect
The analog result figure of rate a, it is known that arresting efficiency of center hole cowling panel is much higher than original cowling panel, oil smoke trapping effect
Fruit is more preferably.
As shown in figure 5, for the oil smoke of the kitchen ventilator of original cowling panel and novel center hole cowling panel under same traffic
Machine, can in the flow field simulation speed cloud atlas in room Y=1.55m (Y is the reference axis in Fig. 2, indicates room width direction) section
It is not present with finding out since two sides air draft air-flow enters the low velocity eddy that smoke chamber generates collision and formed, the air draft at center
The fume pollution air-flow main body generated is directly controlled.Analysis is it is found that the average speed of center circle hole face is flat greater than surrounding cover mouth
Equal speed, control range is larger, and the oil smoke air-flow generated in the pot of the right enters the air draft control area of circular hole, quilt quickly after rising
Circular hole air draft is taken away.Therefore, oil smoke air-flow is mainly drained from the circular hole at center, and nubbin is drained from surrounding cover mouth.Oil smoke
Air-flow reaches the speed control range that cowling panel takes the lead in into center hole after rising due to heat buoyancy, most of oil smoke directly from
Drain at center hole, motion path shortens, and efflux time shortens.Achieve the purpose that quickly to drain oil smoke, reduces oil smoke expansion
A possibility that excessive is dissipated, the anti-interference ability of oil smoke trapping is enhanced.
As shown in fig. 6, being oil smoke concentration mould of the kitchen ventilator in the room section Y=1.55m of novel center hole cowling panel
Quasi- result cloud atlas, it is seen that most of high concentration oil smoke directly enters petticoat pipe from center hole, remaining a part is caught from right cover mouth
Collection, and seldom away from the trapping of pollution sources farther away left hood mouth, is mainly used for mending wind, reduces that oil smoke is excessive to be diffused into indoor wind
Danger.
Claims (1)
1. a kind of novel center hole rectification plate of range hood, including rectangular cowling panel (1) and oil smoke shroud rim (3) and oil smoke cover cover
The surrounding annular air draft region of mouth；It is characterized in that, being provided with center hole (2) on the rectangular cowling panel (1)；The center
Circular hole (2) is directly against wind passage mouth, air draft, center air draft in generation, the cooking fume that left kitchen range or right kitchen range are largely risen
Stream is directed to oil smoke cover center and quickly siphons away, uniform wind speed existing for the surrounding annular air draft region of the oil smoke cover cover mouth (4),
Remaining a small amount of oil smoke is siphoned away at oil smoke shroud rim (3), prevents fumes escaping.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820192441.XU CN208139354U (en) | 2018-02-05 | 2018-02-05 | A kind of novel center circle cellular type rectification plate of range hood |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820192441.XU CN208139354U (en) | 2018-02-05 | 2018-02-05 | A kind of novel center circle cellular type rectification plate of range hood |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208139354U true CN208139354U (en) | 2018-11-23 |
Family
ID=64285456
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820192441.XU Expired - Fee Related CN208139354U (en) | 2018-02-05 | 2018-02-05 | A kind of novel center circle cellular type rectification plate of range hood |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208139354U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108253486A (en) * | 2018-02-05 | 2018-07-06 | 天津大学 | A kind of novel center circle cellular type rectification plate of range hood |
| CN111156558A (en) * | 2020-02-18 | 2020-05-15 | 杭州老板电器股份有限公司 | Range hood control method with drainage function and range hood |
-
2018
- 2018-02-05 CN CN201820192441.XU patent/CN208139354U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108253486A (en) * | 2018-02-05 | 2018-07-06 | 天津大学 | A kind of novel center circle cellular type rectification plate of range hood |
| CN111156558A (en) * | 2020-02-18 | 2020-05-15 | 杭州老板电器股份有限公司 | Range hood control method with drainage function and range hood |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20181123 Termination date: 20210205 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |