CN207961075U - fan and range hood - Google Patents
fan and range hood Download PDFInfo
- Publication number
- CN207961075U CN207961075U CN201820039741.4U CN201820039741U CN207961075U CN 207961075 U CN207961075 U CN 207961075U CN 201820039741 U CN201820039741 U CN 201820039741U CN 207961075 U CN207961075 U CN 207961075U
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- CN
- China
- Prior art keywords
- wind turbine
- spiral case
- deflector
- water conservancy
- conservancy diversion
- 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.)
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 39
- 239000006096 absorbing agent Substances 0.000 abstract 3
- 239000006233 lamp black Substances 0.000 abstract 3
- 239000000463 material Substances 0.000 description 5
- 230000003068 static effect Effects 0.000 description 5
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 4
- 239000003546 flue gas Substances 0.000 description 4
- 239000007789 gas Substances 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 230000008859 change Effects 0.000 description 3
- 210000000078 claw Anatomy 0.000 description 3
- 238000013016 damping Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 230000009467 reduction Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000000465 moulding Methods 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 238000010992 reflux Methods 0.000 description 2
- 239000011347 resin Substances 0.000 description 2
- 229920005989 resin Polymers 0.000 description 2
- 230000035939 shock Effects 0.000 description 2
- 239000000779 smoke Substances 0.000 description 2
- 238000010146 3D printing Methods 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 230000001186 cumulative effect Effects 0.000 description 1
- 229910003460 diamond Inorganic materials 0.000 description 1
- 239000010432 diamond Substances 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 230000008030 elimination Effects 0.000 description 1
- 238000003379 elimination reaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000003116 impacting effect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 230000011218 segmentation Effects 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Landscapes
- Structures Of Non-Positive Displacement Pumps (AREA)
- Hydraulic Turbines (AREA)
Abstract
The utility model relates to a lampblack absorber technical field especially relates to a fan and lampblack absorber that has this fan. The fan comprises a volute and an impeller, wherein the impeller is positioned in the volute, and a flow guide grid net is fixedly arranged at an air inlet of the volute and used for guiding and dividing airflow. The utility model discloses in, through the fixed water conservancy diversion grid network that is provided with in the air intake department of spiral case, can fall into a plurality of strand airflows with whole strand of air current, above-mentioned strand airflow is guided fan impeller blade department, arranges the air current to the lampblack absorber outside through the blade. Because the air current is divided into a plurality of strands, the impact of the air current on the impeller can be reduced, and the air current can flow more smoothly through diversion.
Description
Technical field
The utility model is related to kitchen ventilator technical field more particularly to a kind of wind turbine and with the kitchen ventilator of the wind turbine.
Background technology
Currently used noise control technique has noise elimination, sound absorption, sound insulation, vibration isolation, damping etc., mainly in noise source, make an uproar
It controls and handles in terms of acoustic propagation approach and recipient.Common noise reduction schemes have：(1) common alternating current generator is replaced
For direct current variable frequency motor；(2) molded line for changing volute of blower keeps gas flowing more smooth；(3) change the structure of spiral case volute tongue,
So that air-flow is reduced the impact at volute tongue, reduces the generation of noise；(4) optimize blade wheel structure, reduce vortex and generate；(5) it uses
Acoustic damping materials weaken noise from the propagation path of sound.
But the oily waste treatment of the high cost and later stage of acoustic damping materials is a more difficult problem captured.And it will hand over
Can galvanic electricity machine be changed to direct current generator, first have to make manufacturer receive in view of the rising range of cost, need with that more
Change a series of and relevant interface of motor.The modes such as change volute tongue, spiral case inlet pressure and blade wheel structure must then be thrown in early period
Enter a large amount of work to be designed and verify, and since structural modification is larger, this kind reduces the mode of noise often only new
It is used on product.
Also have in the prior art and deflector is set at fan inlet, which can eliminate blower interior air-flow product
Matter reduces the whirlpool at air inlet in babinet, improves the flow quality of fan inlet to a certain extent.Due to
The air inlet of wind turbine is larger, forms negative pressuren zone when motor runs at high speed at impeller, and air-flow high speed flows to the region.Due to air inlet
Mouthful it is in full opening-wide state, just forms one whole strand of air-flow at this time to gushing at impeller, air flow rate is faster, and air-flow is to impeller
The impact force of generation is bigger.And due to generating reflux at the top of gas shock to impeller, the process arranged outside air-flow can be generated
It is certain to hinder, and the kinetic energy of air-flow is made also to have a degree of loss.
It is, therefore, desirable to provide a kind of wind turbine, can solve the problems, such as that range hood fan noise is big in the prior art.
Utility model content
The purpose of this utility model is that proposing a kind of wind turbine and kitchen ventilator, range hood fan noise can be reduced, increased
Static pressure improves user experience.
For this purpose, the utility model uses following technical scheme：
A kind of wind turbine, including spiral case and impeller are provided, the impeller is located in the spiral case, which is characterized in that described
The air inlet of spiral case is fixedly installed water conservancy diversion grid screen and divides for air-flow to be oriented to.
Preferably, the water conservancy diversion grid screen includes multiple deflectors, multiple demarcation strips are provided between the deflector
By the space segmentation between deflector.
Preferably, the deflector is centroclinal to the air inlet close to one end of the spiral case.
Preferably, the deflector is annular slab, multiple deflectors are arranged concentrically, and the deflector outer diameter or
The length of side gradually increases from inside to outside.
Preferably, the water conservancy diversion grid screen is bowl structure, and the non-co-planar setting of multiple deflectors.
Preferably, the deflector forms mesh with the demarcation strip, the mesh form is polygon, described polygon
Shape number of edges is no less than four.
Preferably, water conservancy diversion grid screen periphery is provided with stationary jaw, the stationary jaw is connect with the spiral case；
The stationary jaw quantity is no less than two.
Preferably, being provided with screw hole on the stationary jaw, the stationary jaw is by being arranged on the spiral case
Air inlet ring threaded hole be fixedly connected with the spiral case.
Preferably, the water conservancy diversion grid screen is an integral structure.
The utility model additionally provides a kind of kitchen ventilator, including wind turbine described above.
The utility model advantageous effect：
It, can be by whole stock air-flow by being fixedly installed water conservancy diversion grid screen in the air inlet of spiral case in the utility model
It is divided into several drafts, above-mentioned little airflow is directed at fan impeller blade, and air-flow is discharged to outside kitchen ventilator by blade
Portion.Since if air-flow is divided into carried interest, impact of the air-flow to impeller can be reduced, and by water conservancy diversion, air-flow can be made to flow
It is more smoothly.
The effect of deflector is air-flow to be more directed into the air inlet of spiral case for being oriented to air-flow, and separate
Plate is then and then to reduce impact of the air-flow to impeller for whole stock air-flow to be divided into several aliquots, and by water conservancy diversion, can make
Air-flow flowing is more smoothly.
Water conservancy diversion grid screen is bowl structure, this kind of structure can make air-flow more enter air inlet.
The purpose that stationary jaw is arranged is in order to which the water conservancy diversion grid screen is integrally attached to scroll outer, due to being set on claw
It is equipped with screw hole, which can be fixedly connected with stationary jaw by the air inlet ring threaded hole on spiral case, this kind of connection side
Formula, without carrying out secondary operation to spiral case, it will be able to realize the positioning to stationary jaw.
The water conservancy diversion grid screen is an integral molding structure, this kind of structure can facilitate manufacture, and saves the processing and manufacturing time.
A kind of kitchen ventilator is additionally provided in the utility model, which is internally provided with above-mentioned wind turbine, can use
Noise is reduced in the process, while can also increase the static pressure of wind turbine, and then quickly excludes oil smoke by the air outlet of wind turbine,
Flue gas in kitchen is avoided to gather reduction user experience.
Description of the drawings
Fig. 1 is the structural schematic diagram of wind turbine provided by the utility model；
Fig. 2 is the structural schematic diagram of water conservancy diversion grid screen in Fig. 1；
Fig. 3 is the front view of water conservancy diversion grid screen in Fig. 2；
Fig. 4 is the sectional view of Fig. 3；
Fig. 5 is the structural schematic diagram of the other angles of water conservancy diversion grid screen in Fig. 1.
In figure：
1, spiral case；
2, impeller；
3, water conservancy diversion grid screen；31, deflector；32, demarcation strip；
4, stationary jaw；41, screw hole；
5, air inlet ring；51, mounting hole.
Specific implementation mode
In order to enable those skilled in the art to better understand the technical solutions of the present invention, below in conjunction with the accompanying drawings and pass through
Specific implementation mode further illustrates the technical solution of the utility model.
A kind of wind turbine is provided in the present embodiment, the fan noise drop that the noise which sends out is not improved relatively
It is low.As shown in Figure 1, including spiral case 1 and impeller 2, wherein impeller 2 is located in spiral case 1, is set in the air inlet fixation of spiral case 1
It is equipped with water conservancy diversion grid screen 3.Water conservancy diversion grid screen 3 is specifically located on the lateral wall of spiral case 1.Between the water conservancy diversion grid screen 3 and spiral case 1
It is additionally provided with air inlet ring 5, mounting hole 51 is provided on air inlet ring 5 for wearing screw by water conservancy diversion grid screen 3 and air inlet ring 5 simultaneously
It is fixed on spiral case 1.
Above-mentioned water conservancy diversion grid screen 3 is an integral molding structure, and can specifically be obtained by 3D printing, the water conservancy diversion grid screen 3 by
Nonmetallic materials are made, and specific material can be plastics or photosensitive resin.Wherein photosensitive resin has high intensity, high temperature resistant and waterproof
Characteristic, water conservancy diversion grid screen 3 use this kind of material, can effectively prevent high-temperature flue gas from impacting the water conservancy diversion grid screen 3 for a long time and make
It is deformed at the water conservancy diversion grid screen 3.As shown in Figure 2-5, which includes multiple deflectors 31, is provided between deflector 31
Divide in the space that multiple demarcation strips 32 form adjacent baffle 31.And then water conservancy diversion grid screen 3 can be made to divide the flow into multiply
Draft enter in air inlet, wherein deflector 31 include two kinds of straight plate and annular slab.No matter above-mentioned deflector
Which kind of plate 31 be, deflector 31 is required to close to one end of spiral case 1 to the centroclinal setting of air inlet in the present embodiment.
When deflector 31 is annular slab, multiple deflectors 31 are arranged concentrically, and 31 outer diameter of deflector is gradual from inside to outside
Increase.The annular slab can be circular ring shape plate or rectangular loop plate, at this time deflector 31 close to one end of air inlet to air inlet
Direction tilt, i.e. the generally annular hang plate of deflector 31, as shown in figure 4, the angle of inclination of deflector 31 from inside to outside by
Cumulative big, signified angle of inclination is the angle of inclination of deflector with respect to the horizontal plane in the present embodiment.This kind of set-up mode energy
So that air-flow is entered blower interior along 31 inclined direction of deflector, the air-flow of multiply shallow bid is effectively inducted into wind turbine
It is interior.Water conservancy diversion grid screen 3 is bowl structure, 31 non-co-planar setting of multiple deflectors, and then intake is made to increase simultaneously.By Fig. 4 and
Shown in Fig. 5, which is bowl structure, this kind of structure can make air-flow flowing more smoothly.When annular slab is annulus
When shape plate, demarcation strip 32 is arranged along annular slab radial direction, i.e., demarcation strip 32 is arranged from air inlet to external radiation, 31 liang of deflector
32 quantity of demarcation strip of end setting differs, and is arranged with specific reference to the deflector 31 of minimum outer diameter in two adjacent baffles 31.When
So, demarcation strip 32 can be circumferentially evenly distributed in distribution；It can also be circumferentially non-to be uniformly arranged.But in order to ensure to be divided
At draft uniformly flow into air inlet, make 2 uniform force of impeller, selection demarcation strip 32 is circumferential in the present embodiment is distributed on
On guide plate.
When deflector 31 is straight plate, using air inlet central axes as symmetry axis, multiple deflectors 31 are symmetrical arranged, and
Inclined direction positioned at multiple deflectors 31 of the air inlet central axes phase the same side is identical, this kind of structure can ensure deflector
31 divide the flow into multiple drafts with the cooperation of demarcation strip 32；When wind turbine operates, the whole stock air-flow entered from air inlet is logical
It crosses deflector 31 and demarcation strip 32 is divided into the air-flows of various shallow bids and is directed at 2 blade of impeller, by blade by gas
Stream is discharged to outside kitchen ventilator, and then can prevent from generating reflux at the top of gas shock to impeller, prevents impeller to row outside air-flow
Process generates obstruction, keeps air-flow flowing more smooth.
Deflector 31 forms mesh with demarcation strip 32, and mesh form is round or polygon, and polygon number of edges is no less than
Four.The shape of demarcation strip 32 can be linear plate or annular slab, and mesh form is quadrangle in the present embodiment, in other realities
It applies and can also be pentagon or hexagon or polygon in example.Wherein quadrangle can be rectangle, trapezoidal or diamond shape etc..It is above-mentioned more
Side shape number of edges is limited to no less than four, it is therefore an objective to and prevent polygon number of edges from causing incoming air area to reduce when selecting three, due to
The area of triangle is minimum in polygon, for this purpose, flue gas suction caused by this kind restriction can avoid incoming air area from reducing
It is low.
As shown in Figs. 1-5, which is provided with stationary jaw 4, and stationary jaw 4 is fixed with spiral case 1 to be connected
It connects.Wherein, 4 quantity of stationary jaw is no less than two, and stationary jaw 4 by the air inlet ring threaded hole that is arranged on spiral case 1 with
Spiral case 1 is fixedly connected.The water conservancy diversion grid screen 3 and air inlet ring 5 directly can be shared identical air inlet ring spiral shell by this kind of set-up mode
Pit thereby reduces the difficulty of processing to spiral case 1, but also this kind of structure is more easily installed.In order to by the airflow fence
Grid 3 is firmly arranged on spiral case 1, and the quantity of stationary jaw 4 is three in the present embodiment, and three claws constitute one equilateral three
Angular, i.e., the angle between each claw is 120 °.Since triangular structure is relatively stable, the water conservancy diversion grid can be made secured
Be fixed on spiral case 1.Setting is there are six threaded hole wherein on spiral case 1, and the quantity of stationary jaw 4 can be in other embodiments
It is identical as the quantity of threaded hole.
Above-mentioned wind turbine was can be found that with wind turbine in the prior art in testing：Using kitchen ventilator after water conservancy diversion grid screen 3
Air quantity variation it is little, air quantity variation can be ignored, and the maximum static pressure in wind turbine is maximum relative to the wind turbine in comparative example
For static pressure, 10Pa or so is improved, and noise declines 0.5dBA.
When the water conservancy diversion grid screen 3 is installed, installation is fixed by the air inlet ring threaded hole being arranged on spiral case 1, is installed
When, it needs air inlet ring 5 being arranged between water conservancy diversion grid screen 3 and spiral case 1, screw sequentially passes through screw hole 41,51 and of mounting hole
Air inlet ring threaded hole (not shown), and then effectively the water conservancy diversion grid screen 3 can be fixedly mounted.Due to being set on spiral case 1
The air inlet ring threaded hole set has setting on existing spiral case 1, this kind of structure eliminates the secondary operation to spiral case 1, makes existing
Some kitchen ventilators can use the water conservancy diversion grid screen 3 provided in the present embodiment.
A kind of kitchen ventilator is additionally provided in the present embodiment, includes the wind turbine as provided in the present embodiment.Inside the kitchen ventilator
It is provided with above-mentioned wind turbine, noise can be reduced in use, while the static pressure of wind turbine can also be increased, and then quickly will
Oil smoke is excluded by the air outlet of wind turbine, and flue gas in kitchen is avoided to gather reduction user experience.
The kitchen ventilator includes shell and the wind turbine that is arranged in shell, and wherein there are two air inlet, shells for housing bottom setting
It is provided with air outlet at the top of body, wind turbine setting is connected close to upper position and the volute of blower 1 with air outlet inside housings, wind
Air inlet ring 5 is installed, air inlet ring 5 is fixedly connected by screw with spiral case 1 at the air inlet of machine spiral case 1.
Note that have been shown and described above the utility model basic principles and main features and the utility model it is excellent
Point.It should be understood by those skilled in the art that the utility model is not limited to the embodiments described above, the above embodiment and say
Only illustrate the principles of the present invention described in bright book, on the premise of not departing from the spirit and scope of the utility model, this
Utility model will also have various changes and improvements, and these various changes and improvements fall within the scope of the claimed invention,
The claimed range of the utility model is defined by the appending claims and its equivalent thereof.
Claims (10)
1. a kind of wind turbine, including spiral case (1) and impeller (2), the impeller (2) is located in the spiral case (1), and feature exists
In the air inlet of the spiral case (1) is fixedly installed water conservancy diversion grid screen (3) and divides for air-flow to be oriented to.
2. wind turbine according to claim 1, which is characterized in that the water conservancy diversion grid screen (3) includes multiple deflectors (31),
Multiple demarcation strips (32) are provided between the deflector (31) to divide the space between deflector (31).
3. wind turbine according to claim 2, which is characterized in that the deflector (31) is close to one end of the spiral case (1)
It is centroclinal to the air inlet.
4. wind turbine according to claim 2 or 3, which is characterized in that the deflector (31) is annular slab, multiple described to lead
Flowing plate (31) is arranged concentrically, and the deflector (31) outer diameter or the length of side gradually increase from inside to outside.
5. wind turbine according to claim 4, which is characterized in that the water conservancy diversion grid screen (3) is bowl structure, and multiple institutes
State the non-co-planar setting of deflector (31).
6. wind turbine according to claim 4, which is characterized in that the deflector (31) forms net with the demarcation strip (32)
Hole, the mesh form are polygon, and the polygon number of edges is no less than four.
7. wind turbine according to claim 1, which is characterized in that water conservancy diversion grid screen (3) periphery is provided with stationary jaw
(4), the stationary jaw (4) connect with the spiral case (1)；Stationary jaw (4) quantity is no less than two.
8. wind turbine according to claim 7, which is characterized in that be provided with screw hole (41), institute on the stationary jaw (4)
Stationary jaw (4) is stated to be fixedly connected with the spiral case (1) by the air inlet ring threaded hole being arranged on the spiral case (1).
9. wind turbine according to claim 1, which is characterized in that the water conservancy diversion grid screen (3) is an integral structure.
10. a kind of kitchen ventilator, which is characterized in that including such as claim 1-9 any one of them wind turbine.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820039741.4U CN207961075U (en) | 2018-01-10 | 2018-01-10 | fan and range hood |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820039741.4U CN207961075U (en) | 2018-01-10 | 2018-01-10 | fan and range hood |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207961075U true CN207961075U (en) | 2018-10-12 |
Family
ID=63732498
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820039741.4U Active CN207961075U (en) | 2018-01-10 | 2018-01-10 | fan and range hood |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207961075U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109794411A (en) * | 2019-03-05 | 2019-05-24 | 中建材（合肥）粉体科技装备有限公司 | A kind of high-efficient powder concentrator that wind field is uniformly distributed |
| CN110017302A (en) * | 2018-01-10 | 2019-07-16 | 青岛海尔智慧厨房电器有限公司 | Fan and range hood |
-
2018
- 2018-01-10 CN CN201820039741.4U patent/CN207961075U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110017302A (en) * | 2018-01-10 | 2019-07-16 | 青岛海尔智慧厨房电器有限公司 | Fan and range hood |
| CN109794411A (en) * | 2019-03-05 | 2019-05-24 | 中建材（合肥）粉体科技装备有限公司 | A kind of high-efficient powder concentrator that wind field is uniformly distributed |
| CN109794411B (en) * | 2019-03-05 | 2024-05-28 | 中建材（合肥）粉体科技装备有限公司 | Efficient powder selecting machine with uniformly distributed wind fields |
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