CN108457905A - Volute tongue, cross flow fan, air conditioner - Google Patents
Volute tongue, cross flow fan, air conditioner Download PDFInfo
- Publication number
- CN108457905A CN108457905A CN201810427696.4A CN201810427696A CN108457905A CN 108457905 A CN108457905 A CN 108457905A CN 201810427696 A CN201810427696 A CN 201810427696A CN 108457905 A CN108457905 A CN 108457905A
- Authority
- CN
- China
- Prior art keywords
- volute tongue
- tongue
- drainage channel
- windward
- grouping teaching
- 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.)
- Granted
Links
- 230000008676 import Effects 0.000 claims description 5
- 230000002159 abnormal effect Effects 0.000 abstract description 6
- 238000010992 reflux Methods 0.000 description 7
- 238000010586 diagram Methods 0.000 description 5
- 230000004048 modification Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- 238000004378 air conditioning Methods 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000001105 regulatory effect Effects 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
- F04D17/00—Radial-flow pumps, e.g. centrifugal pumps; Helico-centrifugal pumps
- F04D17/02—Radial-flow pumps, e.g. centrifugal pumps; Helico-centrifugal pumps having non-centrifugal stages, e.g. centripetal
- F04D17/04—Radial-flow pumps, e.g. centrifugal pumps; Helico-centrifugal pumps having non-centrifugal stages, e.g. centripetal of transverse-flow type
-
- 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
- F04D29/66—Combating cavitation, whirls, noise, vibration or the like; Balancing
- F04D29/661—Combating cavitation, whirls, noise, vibration or the like; Balancing especially adapted for elastic fluid pumps
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
A kind of volute tongue of present invention offer, cross flow fan, air conditioner.The volute tongue, including volute tongue ontology, there is the volute tongue ontology grouping teaching, tongue inner flow surface, drainage channel windward, the drainage channel to be extended towards the tongue inner flow surface by described shunt windward, guide the air-flow at the grouping teaching windward into the tongue inner flow surface.A kind of volute tongue according to the present invention, cross flow fan, air conditioner can significantly reduce the abnormal sound of cross flow fan, improve the comfort of cross flow fan, air conditioner.
Description
Technical field
The invention belongs to air-conditioning technique fields, and in particular to a kind of volute tongue, cross flow fan, air conditioner.
Background technology
Existing volute tongue plays the role of dividing air-flow in through-flow, stablizes eccentric vortex, but since volute tongue itself can not basis
The adjusting of air-flow velocity and flow direction at the small spacing of tongue is realized in rotation speed of fan variation, thus when higher more compared with rated speed,
Flow velocity is excessive at its small spacing, is also easy to produce abnormal sound.
Invention content
Therefore, the technical problem to be solved in the present invention is to provide a kind of volute tongue, cross flow fan, air conditioner, can be notable
The abnormal sound of cross flow fan is reduced, the comfort of cross flow fan, air conditioner is improved.
To solve the above-mentioned problems, the present invention provides a kind of volute tongue, including volute tongue ontology, and the volute tongue ontology has windward
Grouping teaching, tongue inner flow surface, drainage channel, the drainage channel are extended by described shunt windward towards the tongue inner flow surface,
To guide the air-flow at the grouping teaching windward into the tongue inner flow surface.
Preferably, the drainage channel is curved channel.
Preferably, when volute tongue and impeller pairing assemble, the spindle central of the impeller to the tongue inner flow surface most
It is L at a distance, the drainage channel is d in the width radially of the drainage channel, is circle with the spindle central of the impeller
Heart R0 is that radius forms the first cylindrical surface, and first cylindrical surface meets at First Line, wherein R0=L+ with the grouping teaching windward
5d is that radius forms the second cylindrical surface, second cylindrical surface and the volute tongue by center of circle R1 of the spindle central of the impeller
Grouping teaching windward meet at the second line, wherein R1=R0+15d, the import of the drainage channel is in the First Line and second
On grouping teaching windward between line.
Preferably, also there is the volute tongue ontology protrusion, the protrusion to be set on the tongue inner flow surface, the drainage
The outlet in channel is located on the tongue inner flow surface between the protrusion and the grouping teaching windward.
Preferably, also there is the volute tongue ontology leeward, the leeward to be oppositely arranged with the grouping teaching windward, hang down
It is directly the first plane in the plane of the shaft of the impeller, first cylindrical surface is projected as first in first plane
Circle, projection of the grouping teaching windward in first plane intersect at A points with first circle, and the leeward is described
Projection in first plane intersects at B points with first circle, and string is a length of corresponding to the segmental arc of the first circle between A points and B points
M, the distance between grouping teaching side is h, h≤m/2 to the geometric center lines of the outlet windward described in the protrusion.
Preferably, d≤5mm.
Preferably, the drainage channel cross section is in one kind in quadrangle, circle.
Preferably, the drainage channel is multigroup, and multigroup drainage channel is set gradually along the axial direction of impeller.
The present invention also provides a kind of cross flow fan, including volute tongue, the volute tongue is above-mentioned volute tongue.
The present invention also provides a kind of air conditioner, including cross flow fan, the cross flow fan is above-mentioned cross flow fan.
It is logical to be provided with drainage creatively on the volute tongue ontology for volute tongue provided by the invention, cross flow fan, air conditioner
Road, to make the air-flow of impeller generation when with grouping teaching contacts windward, the air-flow for capableing of at least part flows through the drainage
Channel is simultaneously back to the small spacing of tongue by the tongue inner flow surface, and reflux airflow at this time has certain circumferential direction/radial direction
Flow velocity (circumferential direction/radial direction herein is on the basis of circumferential direction/radial direction of impeller) can force eccentric vortex to the side far from the volute tongue
To mobile and regions contract so that air-flow circumferential direction flow velocity Partial Conversion at tongue minimum spacing to radial flow speed namely tongue
Air-flow peripheral flow speed at small spacing reduces, and to be substantially reduced the abnormal sound at small spacing in the prior art, this is advantageous
In the comfort of promotion cross flow fan or even air conditioner in the running.
Description of the drawings
Fig. 1 is the structural schematic diagram of the volute tongue of the embodiment of the present invention；
Fig. 2 is the partial structurtes enlarged diagram at C in Fig. 1；
Fig. 3 is the relation schematic diagram of the volute tongue and the flowing of impeller air-flow of the embodiment of the present invention；
Fig. 4 is the partial schematic diagram of the drainage channel of D view directions in Fig. 3；
Fig. 5 is the partial schematic diagram of another set-up mode of the drainage channel of D view directions in Fig. 3.
Reference numeral is expressed as：
1, volute tongue ontology；11, grouping teaching windward；12, tongue inner flow surface；13, drainage channel；131, it exports；132, import；
14, raised；15, leeward；2, impeller；3, the first circle；4, eccentric vortex.
Specific implementation mode
In conjunction with referring to shown in Fig. 1 to 5, according to an embodiment of the invention, a kind of volute tongue, including volute tongue ontology 1 are provided, it is described
Volute tongue ontology 1 is with grouping teaching 11, tongue inner flow surface 12, drainage channel 13, the drainage channel 13 are divided windward by described windward
Stream interface 11 extends to the tongue inner flow surface 12, guides the air-flow at the grouping teaching windward 11 into the tongue inner flow surface
12.As described in the background art, air-flow velocity at the small spacing of tongue is realized since volute tongue itself can not change according to rotation speed of fan
With the adjusting of flow direction, thus flow velocity is excessive when higher more compared with rated speed, at small spacing, is also easy to produce abnormal sound, this
In technical solution, drainage channel 13 is provided with creatively on the volute tongue ontology 1, to which the air-flow for making impeller 2 generate exists
With when grouping teaching 11 contacts windward, the air-flow for capableing of at least part (is defined as reflux airflow, such as the drainage channel 13 in Fig. 3
In arrow flow direction shown in) flow through the drainage channel 13 and the small spacing of tongue be back to by the tongue inner flow surface 12,
Reflux airflow at this time has certain circumferential direction/radial flow speed, and (circumferential direction/radial direction herein is with circumferential direction/radial direction of impeller 2 for base
It is accurate) eccentric vortex 4 can be forced mobile to the direction far from the volute tongue and regions contract so that the air-flow at tongue minimum spacing
Air-flow peripheral flow speed at circumferential flow velocity Partial Conversion to radial flow speed namely the small spacing of tongue reduces, existing to be substantially reduced
There is the abnormal sound at small spacing in technology, this is conducive to promote the comfort of cross flow fan or even air conditioner in the running.
In order to improve the reflux airflow reflux smoothness, can make reflux airflow arrive at the small spacing of tongue at when
Between more shift to an earlier date, it is preferable that the drainage channel 13 is curved channel, the preferably gentle peace of radian variation of the curved channel
It is sliding.
When volute tongue and the pairing of impeller 2 assemble, the tongue inner flow surface 12 of the spindle central of the impeller 2 to the volute tongue
Maximum distance is L, and the drainage channel 13 is d in the width radially of the drainage channel 13, in the shaft of the impeller 2
The heart is that center of circle R0 is that radius forms the first cylindrical surface, and first cylindrical surface and the grouping teaching windward 11 of the volute tongue meet at first
Line, wherein R0=L+5d are that radius forms the second cylindrical surface, second circle by center of circle R1 of the spindle central of the impeller 2
Cylinder and the grouping teaching windward 11 of the volute tongue meet at the second line, wherein R1=R0+15d, the import 132 of the drainage channel 13
On grouping teaching windward 11 between the First Line and the second line.In the first cylindrical surface, the second cylindrical surface and the volute tongue
The region that ontology 1 intersects, i.e., on the grouping teaching windward 11 between above-mentioned First Line and the second line, air-flow velocity is higher and flows to
Smaller with contact wall surface normal direction angle, airflow kinetic energy is high herein, and also i.e. by the setting of the import 132 and this region, formation is returned
The airflow kinetic energy higher that stream has becomes apparent air-flow regulating effect at the small spacing of tongue namely this is further increased
To the effect of noise control at the small spacing of tongue.
Preferably, the volute tongue ontology 1 also there is protrusion 14, described raised 14 to be set on the tongue inner flow surface 12,
The tongue inner flow surface 12 of the outlet 131 of the drainage channel 13 between described raised 14 and the grouping teaching windward 11
On, described raised 14 can stablize the internal vortex of cross flow fan.
The air-flow radial velocity and circumferential speed value of the airflow inlet side of the tongue inner flow surface 12 are relatively low, and with gas
The flowing formed along the tongue inner flow surface 12 and impeller 2 in fit-up gap is flowed, the radial direction of corresponding air-flow and circumferential flow velocity will
It is stepped up, when the radial direction of air-flow/circumferential direction flow speed value is bigger, the reflux airflow in the drainage channel 13 is to aforementioned air-flow
Radial direction/circumferential direction flow velocity change effect it is more apparent, it is therefore preferred that the volute tongue ontology 1 also have leeward 15, it is described
Leeward 15 is oppositely arranged with the grouping teaching windward 11, and the plane perpendicular to the shaft of the impeller 2 is the first plane, described
First cylindrical surface is projected as the first circle 3 in first plane, and the grouping teaching windward 11 is in first plane
Projection justifies 3 with described first and intersects at A points, projection of the leeward 15 in first plane and first circle, 3 phases
B points are met at, a length of m of string, the geometric center lines of the outlet 131 and institute corresponding to the segmental arc of the first circle 3 between A points and B points
Stating protrusion 14, the distance between 11 side of grouping teaching is h, h≤m/2 windward described in.
To avoid the width d of the drainage channel 13 radially is excessive from causing cross flow fan outlet air sharp-decay, it is preferable that
d≤5mm。
Certainly, the cross section of the drainage channel 13 can be theoretically variously-shaped, but consider the drainage channel
13 processing and manufacturing difficulty, it is preferable that 13 cross section of the drainage channel is in one kind in quadrangle, circle.
The drainage channel 13 can be along axial one group of the setting of impeller 2, and drainage channel 13 is along impeller 2 described in one group
It is axially extending at channel-shaped, as described in Figure 4, certainly, consider the promotion of the intensity and rigidity of the volute tongue ontology 1, it is preferable that institute
It is multigroup to state drainage channel 13, and multigroup drainage channel 13 is set gradually along the axial direction of impeller 2, as shown in figure 5, multigroup described
Spacing between drainage channel 13 can be uniformly arranged and can not also be uniformly arranged.
According to an embodiment of the invention, a kind of cross flow fan, including volute tongue are also provided, the volute tongue is above-mentioned volute tongue.
According to an embodiment of the invention, a kind of air conditioner, including cross flow fan are also provided, the cross flow fan is above-mentioned
Cross flow fan.
Those skilled in the art will readily recognize that under the premise of not conflicting, above-mentioned each advantageous manner can be free
Ground combination, superposition.
The above is merely preferred embodiments of the present invention, be not intended to limit the invention, it is all the present invention spirit and
All any modification, equivalent and improvement made by within principle etc., should all be included in the protection scope of the present invention.Above only
It is the preferred embodiment of the present invention, it is noted that for those skilled in the art, do not departing from this hair
Under the premise of bright technical principle, several improvements and modifications can also be made, these improvements and modifications also should be regarded as the guarantor of the present invention
Protect range.
Claims (10)
1. a kind of volute tongue, which is characterized in that including volute tongue ontology (1), the volute tongue ontology (1) have windward grouping teaching (11),
Tongue inner flow surface (12), drainage channel (13), the drainage channel (13) is from the grouping teaching windward (11) into the tongue
Stream interface (12) extends, and guides the air-flow at the grouping teaching (11) windward into the tongue inner flow surface (12).
2. volute tongue according to claim 1, which is characterized in that the drainage channel (13) is curved channel.
3. volute tongue according to claim 2, which is characterized in that when volute tongue and impeller (2) pairing assemble, the impeller
(2) maximum distance of spindle central to the tongue inner flow surface (12) is L, and the drainage channel (13) is in the drainage channel
(13) width radially is d, is that radius forms the first cylindrical surface, institute by center of circle R0 of the spindle central of the impeller (2)
It states the first cylindrical surface and meets at First Line, wherein R0=L+5d with the grouping teaching windward (11), in the shaft of the impeller (2)
The heart is that center of circle R1 is that radius forms the second cylindrical surface, and the grouping teaching windward (11) of second cylindrical surface and the volute tongue meets at the
The import (132) of two wires, wherein R1=R0+15d, the drainage channel (13) is in meeting between the First Line and the second line
On wind grouping teaching (11).
4. volute tongue according to claim 3, which is characterized in that the volute tongue ontology (1) also has raised (14), described convex
It plays (14) to be set on the tongue inner flow surface (12), the outlet (131) of the drainage channel (13) is located at raised (14)
On the tongue inner flow surface (12) between the grouping teaching windward (11).
5. volute tongue according to claim 4, which is characterized in that the volute tongue ontology (1) also has leeward (15), described
Leeward (15) is oppositely arranged with the grouping teaching windward (11), and the plane perpendicular to the shaft of the impeller (2) is first flat
Face, first cylindrical surface are projected as the first circle (3) in first plane, and the grouping teaching windward (11) is described
Projection in one plane justifies (3) with described first and intersects at A points, projection of the leeward (15) in first plane with
First circle (3) intersects at B points, a length of m of string, the outlet corresponding to the segmental arc of the first circle (3) between A points and B points
(131) the distance between grouping teaching (11) side is h, h≤m/ to geometric center lines windward described in described raised (14)
2。
6. volute tongue according to claim 3, which is characterized in that d≤5mm.
7. volute tongue according to claim 1, which is characterized in that drainage channel (13) cross section is in quadrangle, circle
In one kind.
8. volute tongue according to claim 1, which is characterized in that the drainage channel (13) is multigroup, multigroup drainage
Channel (13) is set gradually along the axial direction of impeller (2).
9. a kind of cross flow fan, including volute tongue, which is characterized in that the volute tongue is described in any one of claim 1 to 8
Volute tongue.
10. a kind of air conditioner, including cross flow fan, which is characterized in that the cross flow fan is the through-flow described in claim 9
Wind turbine.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810427696.4A CN108457905B (en) | 2018-05-07 | 2018-05-07 | Volute tongue, cross-flow fan and air conditioner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810427696.4A CN108457905B (en) | 2018-05-07 | 2018-05-07 | Volute tongue, cross-flow fan and air conditioner |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108457905A true CN108457905A (en) | 2018-08-28 |
| CN108457905B CN108457905B (en) | 2023-11-28 |
Family
ID=63214872
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810427696.4A Active CN108457905B (en) | 2018-05-07 | 2018-05-07 | Volute tongue, cross-flow fan and air conditioner |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108457905B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114440316A (en) * | 2022-01-30 | 2022-05-06 | 广东美的暖通设备有限公司 | Air duct assembly and air conditioning equipment with same |
| CN114837957A (en) * | 2022-04-29 | 2022-08-02 | 阳光泵业(天津)有限公司 | Pump body is powerful from inhaling structure |
| WO2023103118A1 (en) * | 2021-11-30 | 2023-06-15 | Tcl空调器(中山)有限公司 | Volute structure, air duct component, and air conditioner |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB191214668A (en) * | 1911-06-23 | 1912-11-14 | Aegidius Elling | Improvements in Turbo-pumps or Fans. |
| GB876611A (en) * | 1956-12-07 | 1961-09-06 | Firth Cleveland Ltd | Improvements in or relating to machines for inducing flow of fluid for example pumpsand blowers |
| FR2906581A3 (en) * | 2006-09-29 | 2008-04-04 | Renault Sas | Pump i.e. rotating centrifugal pump, body for engine cooling system, has volute tongue traversed by channel connecting high and low pressure field zones that are located in diversion part and in collector respectively |
| CN105626581A (en) * | 2016-02-22 | 2016-06-01 | 清华大学 | Stress application centrifugal pump with pressurization hole |
| CN208153402U (en) * | 2018-05-07 | 2018-11-27 | 珠海格力电器股份有限公司 | Volute tongue, cross flow fan, air conditioner |
-
2018
- 2018-05-07 CN CN201810427696.4A patent/CN108457905B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB191214668A (en) * | 1911-06-23 | 1912-11-14 | Aegidius Elling | Improvements in Turbo-pumps or Fans. |
| GB876611A (en) * | 1956-12-07 | 1961-09-06 | Firth Cleveland Ltd | Improvements in or relating to machines for inducing flow of fluid for example pumpsand blowers |
| FR2906581A3 (en) * | 2006-09-29 | 2008-04-04 | Renault Sas | Pump i.e. rotating centrifugal pump, body for engine cooling system, has volute tongue traversed by channel connecting high and low pressure field zones that are located in diversion part and in collector respectively |
| CN105626581A (en) * | 2016-02-22 | 2016-06-01 | 清华大学 | Stress application centrifugal pump with pressurization hole |
| CN208153402U (en) * | 2018-05-07 | 2018-11-27 | 珠海格力电器股份有限公司 | Volute tongue, cross flow fan, air conditioner |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023103118A1 (en) * | 2021-11-30 | 2023-06-15 | Tcl空调器(中山)有限公司 | Volute structure, air duct component, and air conditioner |
| CN114440316A (en) * | 2022-01-30 | 2022-05-06 | 广东美的暖通设备有限公司 | Air duct assembly and air conditioning equipment with same |
| CN114440316B (en) * | 2022-01-30 | 2024-02-27 | 广东美的暖通设备有限公司 | Air duct assembly and air conditioning equipment with same |
| CN114837957A (en) * | 2022-04-29 | 2022-08-02 | 阳光泵业(天津)有限公司 | Pump body is powerful from inhaling structure |
| CN114837957B (en) * | 2022-04-29 | 2023-10-27 | 阳光泵业(天津)有限公司 | Pump body powerful self-priming structure |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108457905B (en) | 2023-11-28 |
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