CN108661950A - Spiral case, wind turbine and refrigeration equipment - Google Patents
Spiral case, wind turbine and refrigeration equipment Download PDFInfo
- Publication number
- CN108661950A CN108661950A CN201810622873.4A CN201810622873A CN108661950A CN 108661950 A CN108661950 A CN 108661950A CN 201810622873 A CN201810622873 A CN 201810622873A CN 108661950 A CN108661950 A CN 108661950A
- Authority
- CN
- China
- Prior art keywords
- volute tongue
- spiral case
- ventilation opening
- shape portion
- snail shape
- 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.)
- Pending
Links
- 238000005057 refrigeration Methods 0.000 title claims abstract description 10
- 238000009423 ventilation Methods 0.000 claims abstract description 98
- 241000237858 Gastropoda Species 0.000 claims abstract description 95
- 238000013022 venting Methods 0.000 claims description 9
- 230000002093 peripheral effect Effects 0.000 claims description 7
- 210000002105 tongue Anatomy 0.000 description 106
- 238000013461 design Methods 0.000 description 10
- 230000000694 effects Effects 0.000 description 7
- 238000000034 method Methods 0.000 description 5
- 230000005540 biological transmission Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 230000004308 accommodation Effects 0.000 description 2
- 238000004378 air conditioning Methods 0.000 description 2
- 238000010009 beating Methods 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 230000003993 interaction Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 230000003068 static effect Effects 0.000 description 2
- 230000008901 benefit Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000005713 exacerbation Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000009527 percussion Methods 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
- 238000010992 reflux Methods 0.000 description 1
- 238000004088 simulation Methods 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/40—Casings; Connections of working fluid
- F04D29/42—Casings; Connections of working fluid for radial or helico-centrifugal pumps
- F04D29/4206—Casings; Connections of working fluid for radial or helico-centrifugal pumps especially adapted for elastic fluid pumps
- F04D29/422—Discharge tongues
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/40—Casings; Connections of working fluid
- F04D29/42—Casings; Connections of working fluid for radial or helico-centrifugal pumps
- F04D29/4206—Casings; Connections of working fluid for radial or helico-centrifugal pumps especially adapted for elastic fluid pumps
- F04D29/4226—Fan casings
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/40—Casings; Connections of working fluid
- F04D29/42—Casings; Connections of working fluid for radial or helico-centrifugal pumps
- F04D29/44—Fluid-guiding means, e.g. diffusers
- F04D29/441—Fluid-guiding means, e.g. diffusers especially adapted for elastic fluid pumps
Abstract
The invention discloses a kind of spiral case, wind turbine and refrigeration equipment, the spiral case includes：Snail shape portion and volute tongue.There is the reception room for accommodating impeller in snail shape portion, the axis in snail shape portion extends along the longitudinal direction, there is the first ventilation opening and the second ventilation opening in snail shape portion, axis direction of second ventilation opening along snail shape portion is arranged, radial direction of second ventilation opening along snail shape portion is arranged, and second ventilation opening is located on the upside of snail shape portion, first ventilation opening is connected to the reception room with second ventilation opening；The volute tongue is set to the left side of second ventilation opening and extends along the longitudinal direction, and the volute tongue tilts 3 ° to 10 ° relative to the axis in snail shape portion.Volute tongue according to the ... of the embodiment of the present invention can improve airflow efficiency, and reduce pneumatic noise to a certain extent.
Description
Technical field
The present invention designs air stream drives equipment technical field, be specifically designed a kind of spiral case, the wind turbine with the spiral case and
Refrigeration equipment with the wind turbine.
Background technology
Spiral case primarily serves the effect of water conservancy diversion in centrifugal blower, and the air-flow that impeller is collected is directed to the outlet of spiral case,
Air-flow transfer pressure in the middle part of flow process is converted into static pressure.Spiral case is periodically patted at volute tongue by impeller, and outlet
The influence of airflow direction, air-flow is more disorderly, and air velocity is smaller, and static pressure is larger, and there are apparent Secondary Flows, and in its circumferential direction
Gradually weaken position.Under big flow operating mode, there are vortexes, larger to flow effect at volute outlet, at volute tongue influence compared with
It is small；Under low flow rate condition, volute tongue gap is larger by vortes interference, and there are serious reflux, and flows severe exacerbation with air-flow.
Invention content
First aspect present invention is to propose a kind of spiral case, can improve airflow efficiency to a certain extent.
Second aspect of the present invention is to provide a kind of wind turbine with the spiral case.
Third aspect present invention is to provide a kind of refrigeration equipment with the wind turbine.
The spiral case of embodiment according to a first aspect of the present invention, including：Snail shape portion and volute tongue.Have in snail shape portion and is used for
Accommodate the reception room of impeller, the axis in snail shape portion extends along the longitudinal direction, have in snail shape portion the first ventilation opening and
Second ventilation opening, axis direction of second ventilation opening along snail shape portion are arranged, and second ventilation opening is along the snail shape
The radial direction in portion is arranged, and second ventilation opening is located on the upside of snail shape portion, first ventilation opening and described second
Ventilation opening is connected to the reception room；The volute tongue is set to the left side of second ventilation opening and extends along the longitudinal direction, and institute
The axis that volute tongue is stated relative to snail shape portion tilts 3 ° to 10 °.
Volute tongue according to the ... of the embodiment of the present invention can improve airflow efficiency to a certain extent.
In addition, spiral case according to the above embodiment of the present invention, can also have following additional technical characteristic：
In one embodiment of the invention, the volute tongue is arrived relative to the angle of inclination in snail shape portion at 3.72 °
7.11 in the range of °.
In one embodiment of the invention, on direction from front to back, first ventilation opening is set to the snail shape
On the antetheca in portion, the volute tongue is tilted to the left relative to the axis in snail shape portion on direction from front to back.
In one embodiment of the invention, the surface of the volute tongue is the smooth surface vertically extended.
In one embodiment of the invention, the table of the volute tongue is intercepted with the plane perpendicular to the axis in snail shape portion
Face forms volute tongue molded line, and the volute tongue molded line is arc-shaped.
In one embodiment of the invention, the radius of the volute tongue molded line on front side of the volute tongue is less than on rear side of the volute tongue
The radius of volute tongue molded line；Or the radius of the volute tongue molded line on front side of the volute tongue is less than the radius of the volute tongue molded line on rear side of the volute tongue
1 millimeter to 4 millimeters；Or the difference of the radius of the volute tongue molded line on rear side of the volute tongue and the radius of the volute tongue molded line on front side of the volute tongue
Value is suitable for the ratio of the outer diameter of the impeller of storage with the snail shape portion in the range of 0.5% to 2%.
In one embodiment of the invention, range of the radius of the volute tongue molded line of the volute tongue at 11 millimeters to 14 millimeters
It is interior；Or the radius of the volute tongue molded line of the volute tongue is suitable for the ratio 5% to 7% of the outer diameter of the impeller of storage with snail shape portion
In range.
In one embodiment of the invention, the surface of the volute tongue and the inner peripheral surface in snail shape portion are tangent.
In one embodiment of the invention, to intercept spiral case when institute perpendicular to the plane of the axis in snail shape portion
The inner peripheral surface for stating the surface and snail shape portion of volute tongue is tangent.
In one embodiment of the invention, the right of second ventilation opening is along the interior table with snail shape portion right side wall
Face flushes in the up-down direction.
In one embodiment of the invention, at least part on the front edge of second ventilation opening is from the bottom up
It gradually turns forward to form tilting section on direction.
In one embodiment of the invention, the tilting section is located at the rear side on the front edge of second ventilation opening.
In one embodiment of the invention, the width dimensions of the tilting section in left-right direction are at 8 millimeters to 40 millimeters
In the range of；Or the width dimensions of the tilting section in left-right direction are suitable for the ratio of the outer diameter of the impeller of storage with snail shape portion
Value is in the range of 4.40% to 22%.
In one embodiment of the invention, the spiral case further includes：Air dam, the bottom of the air dam and described the
The week of two ventilation openings along being connected, so that the air dam is connected to second ventilation opening, and limits side in the air dam
The cavity for forming third venting mouth is opened wide in face.
In one embodiment of the invention, the front side of the air dam is opened wide and forms the third venting mouth.
In one embodiment of the invention, the air dam includes：Bottom plate and side plate, the bottom plate are logical with described second
The front edge in air port be connected with left margin be connected and to far from second ventilation opening direction horizontal extension；The side plate is extremely
A part of less is in be open forward and along the U-shaped board around the extension of the direction of second ventilation opening, and the side plate is vertically square
To extension, the side plate cooperatively forms the cavity with the bottom plate.
In one embodiment of the invention, the lower edge of the side plate successively with the right of the bottom plate along, described the
The right edge of two ventilation openings, the left margin of the back edge of second ventilation opening, the back edge of the bottom plate and the bottom plate
It is connected.
In one embodiment of the invention, the width dimensions of the bottom plate in left-right direction are more than second ventilation opening
Width dimensions in left-right direction.
In one embodiment of the invention, the width dimensions on front side of the air dam in left-right direction are more than the wind-guiding
The width dimensions of the rear side in portion in left-right direction, and in projection in left-right direction, the projection of the air dam is fallen described
The rear side of air dam.
In one embodiment of the invention, at least part of the air dam is integrally formed with snail shape portion.
In one embodiment of the invention, snail shape portion includes：Hub disk, shroud and coaming plate.The shroud is spaced apart
Ground is set to before the hub disk；The coaming plate surrounds the annular for having opening in top, the coaming plate and the shroud and institute
It states hub disk to be connected, and the coaming plate limits the reception room between the shroud and the hub disk, the coaming plate top
Opening combines to form second ventilation opening with the shroud and hub disk, the first ventilation opening described in projection along the longitudinal direction
It falls on the inside of the coaming plate.
The wind turbine of embodiment according to a second aspect of the present invention, including：Spiral case and impeller.The spiral case is according to snail above-mentioned
Shell；The impeller is rotatably arranged in snail shape portion.
In one embodiment of the invention, the blade of the impeller is non-uniform thickness curved blade.
The refrigeration equipment of embodiment according to a third aspect of the present invention, including wind turbine above-mentioned.
Description of the drawings
Fig. 1 is the schematic diagram of the spiral case of one embodiment of the invention.
Fig. 2 is the front view of spiral case in Fig. 1.
Fig. 3 is the vertical view of spiral case in Fig. 1.
Fig. 4 is the schematic diagram of spiral case in another direction in Fig. 1.
Fig. 5-Fig. 8 is the schematic diagram of the refrigeration equipment of one embodiment of the invention in different directions.
Reference numeral：Spiral case 1, snail shape portion 11, volute tongue 12, the first ventilation opening 101, the second ventilation opening 102, reception room 103,
Air dam 13, bottom plate 131, side plate 132, hub disk 111, shroud 112, coaming plate 113, tilting section 104, third venting mouth 105,
The radius R1 of the volute tongue molded line of 12 front side of volute tongue, the radius R2 of the volute tongue molded line of 12 rear side of volute tongue, volute tongue 12 and snail
The angle theta of the axis holder in shape portion 11.
Specific implementation mode
The embodiment of the present invention is described below in detail, examples of the embodiments are shown in the accompanying drawings, wherein from beginning to end
Same or similar label indicates same or similar element or element with the same or similar functions.Below with reference to attached
The embodiment of figure description is exemplary, it is intended to for explaining the present invention, and is not considered as limiting the invention.
As shown in Figure 1 to Figure 4, the spiral case 1 of embodiment according to a first aspect of the present invention, including：Snail shape portion 11 and volute tongue 12.
Wherein, impeller (not shown), rotation certain driving air-flow of the impeller in snail shape portion 11, shape can be placed in snail shape portion 11
The structure to circulate at certain driving air-flow.
Specifically, having the reception room 103 for accommodating impeller in snail shape portion 11, the axis in snail shape portion 11 is along front and back
To extension, there is the first ventilation opening 101 and the second ventilation opening 102, axis of second ventilation opening 102 along snail shape portion 11 in snail shape portion 11
Line direction is arranged, and radial direction of second ventilation opening 102 along snail shape portion 11 is arranged, and the second ventilation opening 102 is located at snail shape portion 11
Upside, the first ventilation opening 101 are connected to reception room 103 with the second ventilation opening 102, wherein the first ventilation opening 101 and second is divulged information
One in mouthfuls 102 can be formed as air inlet, and another in the first ventilation opening 101 and the second ventilation opening 102 can be with shape
As air outlet.Preferably set the first ventilation opening 101 to air inlet, the second ventilation opening 102 is set as air outlet, that is,
It says, in the wind turbine with the spiral case 1, exist in the driving effect of impeller, air-flow can enter in spiral case 1 from air inlet, and
It is sent out from air outlet.
Volute tongue 12 is set to the left side of the second ventilation opening 102 and extends along the longitudinal direction.
Preferably, volute tongue 12 tilts 3 ° to 10 ° relative to the axis in snail shape portion 11, that is to say, that volute tongue 12 and snail shape portion
The angle theta of 11 axis holder is in the range of 3 ° to 10 °.
Volute tongue 12 according to the ... of the embodiment of the present invention, can improve airflow efficiency to a certain extent.Furthermore it is also possible to reduce
Pneumatic noise.
Specifically, for being compared with volute tongue 12 in the related technology, the skill of the present invention is conveniently clearly demonstrated
Art scheme.It advises by impeller periodically beating and the influence in exit flow direction at straight volute tongue 12, air-flow is more disorderly, production
Raw larger rotational noise, therefore design a kind of incline tongue 12, it is intended to weaken impeller and interact with the periodical of volute tongue 12,
The pressure fluctuation that formation acts on volute tongue 12 is poor, to reduce the pneumatic property rotational noise that wind turbine or even air-conditioning generate.
The design effect of three kinds of incline tongues 12 is calculated using the method for numerical simulation, primary study target is fan delivery
And noise, calculate effect such as the following table 1.Understand that wherein 12 noise reduction of R=11-14mm incline tongues is most by numerical result
It is good, 3.1dB can be reduced on the basis of prototype.Shown in table 1 present invention need technical solution to be protected in the related technology
Other schemes comparison, the advantage of technical scheme of the present invention can be become apparent from.
Table 1
Wherein, R=11-14mm refers to R1 with R2 in the range of 11 millimeters to 14 millimeters, certainly, above description
Only a preferred embodiment of the present invention is not construed as limiting the scope of the present invention.In addition, about R1, R2 points
Not Biao Shi the radius of circular arc of surface interception of 12 rear and front end of volute tongue volute tongue 12 is arranged to the surface of rear and front end certainly
Shape after interception is circular shape, and the preferred embodiment of the present invention, is not to the scope of the present invention
Limitation, in addition, have in the following description about R1, R2 further clearly explanation.
In addition, it should also be noted that, at least part of the molded line shape in snail shape portion 11 in the present invention can be spiral shell
The molded line such as rotation, double helix, to realize the driving and circulation of air-flow.
Volute tongue 12 in the present invention can be located at the left side of the second ventilation opening 102 and to the right towards the second ventilation opening 102
Protrusion can also be similarly that the right side of the second ventilation opening 102 is arranged and is protruded to the left towards the second ventilation opening 102.
With reference to figure 3, in one embodiment of the invention, volute tongue 12 relative to snail shape portion 11 angle of inclination at 3.72 °
To in the range of 7.11 °.It can be reached with inclined 12 air quantity of volute tongue of the angular range and noise it can be seen from table above
To maximum equilibrium, to realize the balance of air quantity and noise.
Furthermore it is preferred that volute tongue 12 could be provided as 5.45 ° relative to the angle of inclination in snail shape portion 11.
Certainly, volute tongue 12 is not limited only to this relative to the angle of inclination in snail shape portion 11 in the application, in environmental noise, wind
Amount require it is lower in the case of, volute tongue 12 or other angle of inclination, for example, the inclining relative to snail shape portion 11 of volute tongue 12
Rake angle is set as 2.5 °, 3.9 °, 4.8 °, 7.0 °, 9.8 °, 10.8 ° etc..
Such as Fig. 1, in one embodiment of the invention, on direction from front to back, the first ventilation opening 101 is set to snail shape
On the antetheca in portion 11, volute tongue 12 is tilted to the left relative to the axis in snail shape portion 11 on direction from front to back.So as to subtract
The noise of little airflow.
Referring to figs. 1 to Fig. 4, further, the surface of volute tongue 12 is the smooth surface vertically extended.Air-flow can be with
Steadily by volute tongue 12, to the noise for avoiding turbulent air flow from generating, also avoid due to air-flow it is unstable caused by energy
Loss improves air quantity.
Preferably, with reference to Fig. 2, the surface to intercept volute tongue 12 perpendicular to the plane of the axis in snail shape portion 11 forms volute tongue type
Line, volute tongue molded line are arc-shaped.Further improve the stationarity of air-flow.
Further, the radius R1 of the volute tongue molded line of 12 front side of volute tongue is less than the radius of the volute tongue molded line of 12 rear side of volute tongue
R2 can preferably form incline tongue 12 above-mentioned by the variation of radius, improve the wind effect of spiral case 1.
Preferably, it is less than the volute tongue molded line of 12 front side of volute tongue with reference to Fig. 2, the radius R2 of the volute tongue molded line of 12 rear side of volute tongue
The difference of radius R1 is 1 millimeter to 4 millimeters.That is, the value of R2-R1 is in the range of 1 millimeter to 4 millimeters, certain R1-R2
Value can not also within the scope of this, for example, the value of R2-R1 can be 0.5 millimeter, 1.5 millimeters, 2.8 millimeters, 4.8 millimeters
Etc..
It can be advantageous to the circle center line connecting of all volute tongue molded line in volute tongue 12 is aligned parallel to 1 axis of spiral case, and
The whole inclination of volute tongue 12 is realized only by the radius change of volute tongue molded line, it can also be by the whole installation on the surface of volute tongue 12
At inclined form.
Wherein, in the present invention axis holder in volute tongue 12 and snail shape portion 11 angle theta, following understanding can be done：
Line segment with the surface of volute tongue 12 near 102 right side of the second ventilation opening is reference, the line segment and snail shape portion 11
The angle of axis is θ.
Furthermore it is also possible to by the radius of the radius R1 of the volute tongue molded line of 12 rear side of volute tongue and the volute tongue molded line of 12 front side of volute tongue
The difference R2-R1 of R2 is suitable for the ratio of the outer diameter R3 of the impeller of storage with snail shape portion 11 in the range of 0.5% to 2%.Also
It is to say, for the value of (R2-R1)/R3 in the range of 0.5% to 2%, the value of certain (R2-R1)/R3 can not also be in this range
It is interior, for example, the value of (R2-R1)/R3 can be 0.3%, 1.5%, 2.5%, 3% etc..
In one embodiment of the invention, range of the radius of the volute tongue molded line of volute tongue 12 at 11 millimeters to 14 millimeters
It is interior.
Preferably, R1=11 millimeters, R2=14 millimeters.
Furthermore it is also possible to which the radius of the volute tongue molded line of volute tongue 12 and snail shape portion 11 to be suitable for the ratio of the outer diameter of the impeller of storage
In the range of value 5% to 7%.
Advantageously, the surface of volute tongue 12 and the inner peripheral surface in snail shape portion 11 are tangent.Surface that can be by volute tongue 12 and snail shape
The inner peripheral surface in portion 11 is tangent and the surface of volute tongue 12 and the upper surface of following bottom plates 131 are tangent, to limit the table of volute tongue 12
Face is formed, in addition, in the radius of engagement volute tongue molded line, you can determine the angle of inclination of volute tongue 12, the shape etc. of volute tongue 12.
The surface and snail shape portion 11 of volute tongue 12 when preferably, to intercept spiral case 1 perpendicular to the plane of the axis in snail shape portion 11
Inner peripheral surface it is tangent.
As a comparison with conventional spiral case 1, by impeller periodically beating and exit flow direction at conventional straight volute tongue 12
Influence, air-flow is more disorderly, generates larger rotational noise, therefore designs a kind of incline tongue 12, it is intended to weaken impeller with
The periodical interaction of volute tongue 12, the pressure fluctuation that formation acts on volute tongue 12 is poor, is generated to reduce wind turbine or even air-conditioning
Pneumatic property rotational noise.
With reference to Fig. 2 and Fig. 4, in one embodiment of the invention, the right of the second ventilation opening 102 is along right with snail shape portion 11
The inner surface of side wall flushes in the up-down direction.The size of the second ventilation opening 102 can be increased to a certain extent, improve air-supply
Amount.
Referring to Fig.1 and Fig. 4, in one embodiment of the invention, at least part on the front edge of the second ventilation opening 102
It gradually turns forward to form tilting section 104 on direction from the bottom up.Air quantity can be further promoted, moreover, tilting section
14 can effectively guide airflow, and to reduce the turbulent flow and noise of air-flow, effectively realizing reduces energy loss, section
Energy, noise reduction etc..
Referring to Fig.1 and Fig. 4, further, tilting section 104 is located at the rear side on the front edge of the second ventilation opening 102.
Preferably, the width dimensions of tilting section 104 in left-right direction are in the range of 8 millimeters to 40 millimeters.
Alternatively, it is also possible to which the width dimensions in left-right direction of tilting section 104 and snail shape portion 11 to be suitable for the impeller of storage
The ratio of outer diameter is in the range of 4.40% to 22%.
Tilt outlet design parameter is the tilting procedure of 8mm to 30mm, is tilted to the greatest extent ensure simultaneously again needed for
1 thickness of spiral case.Compared to prototype, discharge area is increased, air quantity is the product with muzzle velocity and discharge area, therefore
This designs the air quantity that can increase wind turbine；Again because wind turbine is axial exit design, similarly there is air-flow in axial outlet wall
Periodic percussion, the design of this tilt outlet can weaken impeller and the axial effect for turning to wall surface, so as to reduce wind turbine
Aerodynamic noise.
In addition, on the direction far from volute tongue, the width dimensions of tilting section gradually increase, it is preferable that the second ventilation opening 102
The inside edge of the part of upper neighbouring volute tongue does not tilt, and since the precalculated position on the second ventilation opening 102, the second ventilation opening
102 inside edge starts to tilt.In addition, in remoter position at a distance from volute tongue, 102 inclined size of the second ventilation opening is gradual
Increase.In other words, the surface of tilting section (leads to forward, to far from second in other words gradually downward on the direction far from volute tongue
The direction etc. in air port 102) it tilts.
The ratio of the width dimensions of 102 front side of width dimensions and the second ventilation opening of tilting section in left-right direction can be 1
To in the range of 1/10, and tilting section can be covered up to the side far from volute tongue on the second ventilation opening 102.In addition, tilting section is left
The spacing of the initial position at end and the volute tongue is L1, and the width of the front side of the second ventilation opening 102 in left-right direction is L2, L1/
L2 can be in the range of 0.01 to 0.6.
Referring to figs. 1 to Fig. 4, in one embodiment of the invention, spiral case 1 further includes：Air dam 13, the bottom of air dam 13
Portion, along being connected, so that air dam 13 is connected to the second ventilation opening 102, and is limited with the week of the second ventilation opening 102 in air dam 13
Go out side and opens wide the cavity for forming third venting mouth 105.
Referring to Fig.1, further, the front side of air dam 13 is opened wide and forms third venting mouth 105.
Referring to Fig.1, it is preferable that air dam 13 includes：Bottom plate 131 and side plate 132, bottom plate 131 and the second ventilation opening 102
Front edge be connected with left margin be connected and to far from the second ventilation opening 102 direction horizontal extension；At least part of side plate 132
In opening forward and along the U-shaped board extended around the direction of the second ventilation opening 102, and side plate 132 vertically extends, side plate
132 cooperatively form cavity with bottom plate 131.
Advantageously, referring to Fig.1, the lower edge of side plate 132 is successively with the right of bottom plate 131 along the right side of, the second ventilation opening 102
Edge, the back edge of the second ventilation opening 102, the back edge of bottom plate 131 and bottom plate 131 left margin be connected.
In addition, referring to Fig.1, the width dimensions of bottom plate 131 in left-right direction are more than the second ventilation opening 102 in left-right direction
Width dimensions.
In one embodiment of the invention, the width dimensions of 13 front side of air dam in left-right direction are more than air dam 13
The width dimensions of rear side in left-right direction, and in projection in left-right direction, the projection of air dam 13 is fallen in air dam 13
Rear side.
As a comparison with conventional spiral case 1, conventional spiral case 1 is axial admission, and the gas into spiral case 1 is made through impeller
With then going out stream along radially outlet under the guide functions of four sections of 1 curves of spiral case, there are one to ask for such inlet and outlet mode
Topic, gas can occupy more spaces along inlet and outlet section, and it is a kind of small especially to have to design in the limited space of window air conditioner
Space and spiral case of good performance 1.
Conventional radial outlet is changed to axial outlet by the design spiral case 1, and air-flow is by similar " U " types channel, Ke Yiman
The sufficient better air-suction state of window air conditioner and go out stream mode.
With reference to Fig. 5-Fig. 8, the top of spiral case 1 is capped the closing of structure 2, therefore, air dam 13 above-mentioned and closure construction 2
Between will be formed there is the shape being open with front side and bottom surface, specifically, U-shaped side plate 132, bottom plate 131 and covering
Structure 2 has cooperatively formed wind guide chamber, the reception room in the bottom connection snail shape portion of wind guide chamber, the open-front of wind guide chamber, therefore,
When air-flow is sent to the second ventilation opening 102 from reception room, under the guiding function of wind guide chamber, air-flow will be before wind guide chamber
Face is sent out and (is namely sent out from third venting mouth).In addition, from the first ventilation opening in attached drawing 4 as can be seen that snail shape portion
It is formed in the front side in snail shape portion, therefore, air-flow enters reception room from the first ventilation opening, enters wind guide chamber by the second ventilation opening,
It is sent by third venting mouth, to form U-shaped air-supply.
Certainly, air-flow can also from third venting mouth after wind guide chamber, the second ventilation opening, reception room from the first ventilation opening
It sends out, this process is inverse process above-mentioned, is no longer described in detail herein.
Wherein, heat exchange structure can be set before snail shape portion, in addition, as can be seen that bottom plate from the embodiment of front
The front side wall in snail shape portion has been stretched out in 131 front side, therefore, one will be formed between bottom plate 131 and the front side wall in snail shape portion
Accommodation space, at this point it is possible to be arranged heat exchange structure in this accommodation space.
Correspondingly, when which being applied in heat transmission equipment (such as window air conditioner), the antetheca in snail shape portion can be set
It is set to the form sunk in heat transmission equipment, thus easily can place heat exchange structure on the antetheca in snail shape portion.
Certainly, above description is only certain specific embodiments of the invention, is not to the scope of the present invention
Limitation.For example, heat exchange structure can also be arranged to other positions by the present invention.
Closure construction 2 in the present invention can be the structures such as the top plate of heat transmission equipment.
It will be observed from the foregoing that the inner space of air dam 13 gradually extends out on direction from back to front.And
The rear portion of the inner space of air dam 13 is connected to reception room.
In one embodiment of the invention, at least part of air dam 13 is integrally formed with snail shape portion 11.
Referring to figs. 1 to Fig. 4, in one embodiment of the invention, snail shape portion 11 includes：It hub disk 111, shroud 112 and encloses
Plate 113.Shroud 112 is set to before hub disk 111 at interval；Coaming plate 113 surrounds the annular for having opening in top, coaming plate
113 are connected with shroud 112 and hub disk 111, and coaming plate 113 limits reception room 103, coaming plate between shroud 112 and hub disk 111
The opening on 113 tops is combined with shroud 112 and hub disk 111 forms the second ventilation opening 102, first in projection along the longitudinal direction
Ventilation opening 101 is fallen in 113 inside of coaming plate.
The wind turbine of embodiment according to a second aspect of the present invention, including：Spiral case 1 and impeller.Spiral case 1 is according to spiral case above-mentioned
1；Impeller is rotatably arranged in snail shape portion 11.
1 structure of spiral case above-mentioned is utilized in wind turbine according to the ... of the embodiment of the present invention, can improve air output and reduce and send
Wind noise, to improve the overall performance of wind turbine.
In one embodiment of the invention, the blade of impeller is non-uniform thickness curved blade.
The refrigeration equipment of embodiment according to a third aspect of the present invention, including wind turbine above-mentioned.
Refrigeration equipment in the present invention can be window air conditioner etc..
In addition, in the present invention each parameter value, the following table 2 can be referred to.
Table 2
In the description of the present invention, it is to be understood that, term "center", " longitudinal direction ", " transverse direction ", " length ", " width ",
" thickness ", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom" "inner", "outside", " up time
The orientation or positional relationship of the instructions such as needle ", " counterclockwise ", " axial direction ", " radial direction ", " circumferential direction " be orientation based on ... shown in the drawings or
Position relationship is merely for convenience of description of the present invention and simplification of the description, and does not indicate or imply the indicated device or element must
There must be specific orientation, with specific azimuth configuration and operation, therefore be not considered as limiting the invention.
In addition, term " first ", " second " are used for description purposes only, it is not understood to indicate or imply relative importance
Or implicitly indicate the quantity of indicated technical characteristic.Define " first " as a result, the feature of " second " can be expressed or
Implicitly include at least one this feature.In the description of the present invention, the meaning of " plurality " is at least two, such as two, three
It is a etc., unless otherwise specifically defined.
In the present invention unless specifically defined or limited otherwise, term " installation ", " connected ", " connection ", " fixation " etc.
Term shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integral；Can be that machinery connects
It connects, can also be electrical connection；It can be directly connected, can also can be indirectly connected through an intermediary in two elements
The interaction relationship of the connection in portion or two elements, unless otherwise restricted clearly.For those of ordinary skill in the art
For, the specific meanings of the above terms in the present invention can be understood according to specific conditions.
In the present invention unless specifically defined or limited otherwise, fisrt feature can be with "above" or "below" second feature
It is that the first and second features are in direct contact or the first and second features pass through intermediary mediate contact.Moreover, fisrt feature exists
Second feature " on ", " top " and " above " but fisrt feature be directly above or diagonally above the second feature, or be merely representative of
Fisrt feature level height is higher than second feature.Fisrt feature second feature " under ", " lower section " and " below " can be
One feature is directly under or diagonally below the second feature, or is merely representative of fisrt feature level height and is less than second feature.
In the description of this specification, reference term " one embodiment ", " some embodiments ", " example ", " specifically show
The description of example " or " some examples " etc. means specific features, structure, material or spy described in conjunction with this embodiment or example
Point is included at least one embodiment or example of the invention.In the present specification, schematic expression of the above terms are not
It must be directed to identical embodiment or example.Moreover, particular features, structures, materials, or characteristics described can be in office
It can be combined in any suitable manner in one or more embodiments or example.In addition, without conflicting with each other, the skill of this field
Art personnel can tie the feature of different embodiments or examples described in this specification and different embodiments or examples
It closes and combines.
Although the embodiments of the present invention has been shown and described above, it is to be understood that above-described embodiment is example
Property, it is not considered as limiting the invention, those skilled in the art within the scope of the invention can be to above-mentioned
Embodiment is changed, changes, replacing and modification.
Claims (24)
1. a kind of spiral case, which is characterized in that including：
There is in the snail shape portion reception room for accommodating impeller, the axis in snail shape portion to prolong along the longitudinal direction in snail shape portion
It stretches, there is the first ventilation opening and the second ventilation opening, axis side of second ventilation opening along snail shape portion in snail shape portion
To setting, radial direction of second ventilation opening along snail shape portion is arranged, and second ventilation opening is located at the snail shape
On the upside of portion, first ventilation opening is connected to the reception room with second ventilation opening；
Volute tongue, the volute tongue is set to the left side of second ventilation opening and extends along the longitudinal direction, and the volute tongue is relative to institute
The axis for stating snail shape portion tilts 3 ° to 10 °.
2. spiral case according to claim 1, which is characterized in that spiral case according to claim 1, which is characterized in that
The volute tongue relative to snail shape portion angle of inclination in the range of 3.72 ° to 7.11 °.
3. spiral case according to claim 1, which is characterized in that on direction from front to back, first ventilation opening is set
In on the antetheca in snail shape portion, the volute tongue inclines to the left relative to the axis in snail shape portion on direction from front to back
Tiltedly.
4. spiral case according to claim 1, which is characterized in that the surface of the volute tongue be vertically extend it is smooth
Curved surface.
5. spiral case according to claim 3, which is characterized in that intercept institute perpendicular to the plane of the axis in snail shape portion
The surface for stating volute tongue forms volute tongue molded line, and the volute tongue molded line is arc-shaped.
6. spiral case according to claim 5, which is characterized in that
The radius of volute tongue molded line on front side of the volute tongue is less than the radius of the volute tongue molded line on rear side of the volute tongue；Or
The radius of volute tongue molded line on front side of the volute tongue is less than 1 millimeter to 4 millimeters of the radius of the volute tongue molded line on rear side of the volute tongue；
Or
Difference and the snail of the radius of volute tongue molded line on rear side of the volute tongue with the radius of the volute tongue molded line on front side of the volute tongue
Shape portion is suitable for the ratio of the outer diameter of the impeller of storage in the range of 0.5% to 2%.
7. spiral case according to claim 5 or 6, which is characterized in that
The radius of the volute tongue molded line of the volute tongue is in the range of 11 millimeters to 14 millimeters；Or
The radius of the volute tongue molded line of the volute tongue is suitable for the ratio 5% to 7% of the outer diameter of the impeller of storage with snail shape portion
In range.
8. spiral case according to claim 1, which is characterized in that the inner peripheral surface phase on the surface of the volute tongue and snail shape portion
It cuts.
9. spiral case according to claim 1, which is characterized in that intercept institute perpendicular to the plane of the axis in snail shape portion
It is tangent to state the surface of the volute tongue and the inner peripheral surface in the snail shape portion when spiral case.
10. spiral case according to claim 1, which is characterized in that the right edge and the snail shape portion of second ventilation opening
The inner surface of right side wall flushes in the up-down direction.
11. spiral case according to claim 1, which is characterized in that at least part on the front edge of second ventilation opening
It gradually turns forward to form tilting section on direction from the bottom up.
12. spiral case according to claim 11, which is characterized in that the tilting section is located at the front of second ventilation opening
The rear side on edge.
13. spiral case according to claim 12, which is characterized in that
The width dimensions of the tilting section in left-right direction are in the range of 8 millimeters to 40 millimeters；Or
The ratio that the width dimensions of the tilting section in left-right direction are suitable for the outer diameter of the impeller of storage with snail shape portion exists
In the range of 4.40% to 22%.
14. the spiral case according to any one of claim 1-6,8-13, which is characterized in that the spiral case further includes：
Air dam, week of the bottom of the air dam and second ventilation opening is along being connected, so that the air dam and described the
Two ventilation openings are connected to, and are limited side in the air dam and opened wide the cavity for forming third venting mouth.
15. spiral case according to claim 14, which is characterized in that the front side of the air dam opens wide that form the third logical
Air port.
16. spiral case according to claim 15, which is characterized in that the air dam includes：
Bottom plate, the bottom plate is connected with the front edge of second ventilation opening and left margin to be connected and divulges information to far from described second
The direction horizontal extension of mouth；
At least part of side plate, the side plate is forward and U-shaped along extending around the direction of second ventilation opening in opening
Plate, and the side plate vertically extends, the side plate cooperatively forms the cavity with the bottom plate.
17. spiral case according to claim 16, which is characterized in that the lower edge of the side plate right side with the bottom plate successively
Edge, the right edge of second ventilation opening, the back edge of second ventilation opening, the back edge of the bottom plate and the bottom
The left margin of plate is connected.
18. spiral case according to claim 16, which is characterized in that the width dimensions of the bottom plate in left-right direction are more than institute
State the width dimensions of the second ventilation opening in left-right direction.
19. spiral case according to claim 15, which is characterized in that the width dimensions on front side of the air dam in left-right direction
More than the rear side width dimensions in left-right direction of the air dam, and in projection in left-right direction, the air dam
Projection falls the rear side in the air dam.
20. spiral case according to claim 14, which is characterized in that at least part of the air dam and snail shape portion
It is integrally formed.
21. the spiral case according to any one of claim 1-6,8-13, which is characterized in that snail shape portion includes：
Hub disk；
Shroud, the shroud are set to before the hub disk at interval；
Coaming plate, the coaming plate surround the annular for having opening in top, and the coaming plate is connected with the shroud and the hub disk, and
The coaming plate limits the reception room, opening and the shroud on the coaming plate top between the shroud and the hub disk
It combines to form second ventilation opening with hub disk, the first ventilation opening described in projection along the longitudinal direction is fallen in the coaming plate
Side.
22. a kind of wind turbine, which is characterized in that including：
Spiral case, the spiral case are the spiral case according to any one of claim 1-21；
Impeller, the impeller are rotatably arranged in snail shape portion.
23. wind turbine according to claim 22, which is characterized in that the blade of the impeller is non-uniform thickness curved blade.
24. a kind of refrigeration equipment, which is characterized in that include the wind turbine according to claim 22 or 23.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810622873.4A CN108661950A (en) | 2018-06-15 | 2018-06-15 | Spiral case, wind turbine and refrigeration equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810622873.4A CN108661950A (en) | 2018-06-15 | 2018-06-15 | Spiral case, wind turbine and refrigeration equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108661950A true CN108661950A (en) | 2018-10-16 |
Family
ID=63774864
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810622873.4A Pending CN108661950A (en) | 2018-06-15 | 2018-06-15 | Spiral case, wind turbine and refrigeration equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108661950A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1417530A (en) * | 2001-11-08 | 2003-05-14 | 三星电子株式会社 | Integral air conditioner with fan shell |
| US20050214114A1 (en) * | 2004-03-25 | 2005-09-29 | Yu-Nien Huang | Centrifugal fan |
| CN201116543Y (en) * | 2007-11-28 | 2008-09-17 | 四川长虹电器股份有限公司 | Centrifugal fan casing |
| CN102022383A (en) * | 2009-09-11 | 2011-04-20 | 珠海格力电器股份有限公司 | Air-conditioner air duct device and air-conditioner |
| CN102297157A (en) * | 2010-06-25 | 2011-12-28 | 山洋电气株式会社 | Centrifugal fan |
| CN203201872U (en) * | 2013-04-27 | 2013-09-18 | 中联重科股份有限公司 | Centrifugal fan and volute thereof and snow blowing machine |
| CN208669692U (en) * | 2018-06-15 | 2019-03-29 | 广东美的制冷设备有限公司 | Spiral case, blower and refrigeration equipment |
-
2018
- 2018-06-15 CN CN201810622873.4A patent/CN108661950A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1417530A (en) * | 2001-11-08 | 2003-05-14 | 三星电子株式会社 | Integral air conditioner with fan shell |
| US20050214114A1 (en) * | 2004-03-25 | 2005-09-29 | Yu-Nien Huang | Centrifugal fan |
| CN201116543Y (en) * | 2007-11-28 | 2008-09-17 | 四川长虹电器股份有限公司 | Centrifugal fan casing |
| CN102022383A (en) * | 2009-09-11 | 2011-04-20 | 珠海格力电器股份有限公司 | Air-conditioner air duct device and air-conditioner |
| CN102297157A (en) * | 2010-06-25 | 2011-12-28 | 山洋电气株式会社 | Centrifugal fan |
| CN203201872U (en) * | 2013-04-27 | 2013-09-18 | 中联重科股份有限公司 | Centrifugal fan and volute thereof and snow blowing machine |
| CN208669692U (en) * | 2018-06-15 | 2019-03-29 | 广东美的制冷设备有限公司 | Spiral case, blower and refrigeration equipment |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| KR102002412B1 (en) | Indoor unit of air conditioner and controlling method of the air conditioner | |
| CN1914424B (en) | Impeller for blower and air conditioner having the same | |
| JP6463548B2 (en) | Axial blower and outdoor unit | |
| KR101698788B1 (en) | Sirocco fan and Air condtioner having the same | |
| CN210688635U (en) | Air duct assembly and air conditioner with same | |
| US20090255654A1 (en) | Centrifugal Fan and Air Conditioner Using the Same | |
| CN108661929B (en) | Centrifugal fan and ceiling embedded air conditioner indoor unit | |
| JP2022500590A (en) | Forward / reverse rotation fan | |
| JPH035633A (en) | Air conditioning device | |
| US7967557B2 (en) | Multiblade centrifugal blower | |
| JP7308985B2 (en) | Centrifugal blower and air conditioner | |
| CN113994102B (en) | Axial fan, blower device, and refrigeration cycle device | |
| CN210196137U (en) | Centrifugal fan, volute thereof and household appliance | |
| CN208669692U (en) | Spiral case, blower and refrigeration equipment | |
| KR20140034383A (en) | Air conditioner | |
| JP3544325B2 (en) | Centrifugal blower impeller and air conditioner | |
| CN108661950A (en) | Spiral case, wind turbine and refrigeration equipment | |
| CN112050296B (en) | Air conditioner | |
| JPH0539930A (en) | Air conditioner | |
| JPH0593523A (en) | Air conditioner | |
| JP6710337B2 (en) | Air conditioner | |
| JP5590016B2 (en) | Turbo fan, air conditioner | |
| JP3775973B2 (en) | Blower and refrigerator-freezer using it | |
| CN109611381A (en) | A kind of blower noise-reduction method and low noise blower | |
| JPH0224056Y2 (en) |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |