CN205243924U - Device is prevented leaking by fan air intake - Google Patents
Device is prevented leaking by fan air intake Download PDFInfo
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- CN205243924U CN205243924U CN201521068831.9U CN201521068831U CN205243924U CN 205243924 U CN205243924 U CN 205243924U CN 201521068831 U CN201521068831 U CN 201521068831U CN 205243924 U CN205243924 U CN 205243924U
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- China
- Prior art keywords
- impeller
- conical ring
- air inlet
- air intake
- welding circle
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/70—Wind energy
- Y02E10/72—Wind turbines with rotation axis in wind direction
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Abstract
The utility model discloses a device is prevented leaking by fan air intake, including impeller body, impeller body comprises impeller hub disk, impeller blade, impeller front disc and air intake welding circle, the impeller blade equipartition is on the impeller hub disk, and impeller front disc welds in the front end of impeller blade, impeller front disc's front end is connected with the air intake welding circle of loudspeaker form, the fixed cover in one side of impeller front disc and air intake welding circle junction has conical ring, and conical ring welds in the air intake welding and circle, the utility model discloses add conical ring on traditional fan wheel basis, when the joint gap of air current from impeller shroud and air intake welding circle spilt, conical ring played the vortex effect for impeller front disc forms effective runner with the joint gap of air intake welding circle is unable, thereby can lower the holistic leakage quantity of letting out, therefore plays the effect that improves fan efficiency.
Description
Technical field
The utility model relates to blower fan field, specifically a kind of air inlet device for preventing leakage.
Background technology
Blower fan is that China is called for short the custom of gas compression and gas conveying machinery, and usually said blower fan comprises: ventilation blower,Air blast, wind-driven generator. Gas compression and gas conveying machinery are the mechanical energy of rotation to be converted to gas pressure can and moveCan, and the machinery that gas is transferred out.
The main structural components of blower fan be impeller, casing, air inlet, support, motor, belt pulley, shaft coupling, muffler,Driving member (bearing) etc.
The air inlet mechanism of blower fan is generally made up of shroud and impeller, and blower fan is in the process of actual operation, between shroud and impellerCan produce situation about revealing, the whole efficiency of blower fan be reduced greatly, thereby need to be improved this.
Utility model content
The purpose of this utility model is to provide a kind of air inlet device for preventing leakage, proposes to solve in above-mentioned background technologyProblem.
For achieving the above object, the utility model provides following technical scheme:
A kind of air inlet device for preventing leakage, comprises impeller bodies, and described impeller bodies is by impeller hub disk, impeller blade, leafWheel shroud and air inlet welding circle forms, and described impeller blade is distributed on impeller hub disk, impeller shroud be welded in impeller blade beforeEnd; The front end of impeller shroud is connected with trumpet-shaped air inlet welding circle; Described impeller shroud and air inlet welding circle junctionA side be fixed with conical ring, and conical ring to be welded in air inlet welding circle upper, the inner side of conical ring and impeller shroud and enterThe junction of air port welding circle is oppositely arranged; Therefore when air-flow spills from the joint gap of impeller shroud and air inlet welding circleTime, conical ring plays flow-disturbing effect, makes the joint gap of impeller shroud and air inlet welding circle cannot form effective runner,Thereby can lower overall leakage rate, thereby play the effect that improves fan efficiency.
As further program of the utility model: described conical ring adopts steel or aluminium alloy to make.
As further scheme of the utility model: the thickness of described conical ring is 2mm-4mm.
As further scheme of the utility model: described conical ring and impeller shroud front end maximum transversal spacing size are 3mm。
Compared with prior art, the beneficial effects of the utility model are: the utility model increases on traditional draught fan impeller basisIf conical ring, in the time that air-flow spills from the joint gap of impeller shroud and air inlet welding circle, conical ring plays flow-disturbing effect,Make the joint gap of impeller shroud and air inlet welding circle cannot form effective runner, thereby can lower overall leakageAmount, thereby play the effect that improves fan efficiency.
Brief description of the drawings
Fig. 1 is the structural representation of a kind of air inlet device for preventing leakage of the utility model.
Fig. 2 is the partial schematic diagram of a kind of air inlet device for preventing leakage of the utility model.
In figure: 1-air inlet welding circle, 2-conical ring, 3-impeller shroud.
Detailed description of the invention
Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the utility model embodiment is carried out clearlyChu, intactly description, obviously, described embodiment is only the utility model part embodiment, instead of wholeEmbodiment. Based on the embodiment in the utility model, those of ordinary skill in the art are not making under creative work prerequisiteThe every other embodiment obtaining, belongs to the scope that the utility model is protected.
Refer to Fig. 1～2, in the utility model embodiment, a kind of air inlet device for preventing leakage, comprises impeller bodies,Described impeller bodies is made up of impeller hub disk, impeller blade, impeller shroud 3 and air inlet welding circle 1, and described impeller blade is uniformOn impeller hub disk, impeller shroud 3 is welded in the front end of impeller blade; The front end of impeller shroud 3 is connected with trumpet-shaped air intakeMouth welding circle 1; Described impeller shroud 3 is fixed with conical ring 2 with a side of air inlet welding circle 1 junction, and taperRing 2 is welded on air inlet welding circle 1, the junction of the inner side of conical ring 2 and impeller shroud 3 and air inlet welding circle 1Be oppositely arranged; Therefore in the time that air-flow spills with the joint gap of air inlet welding circle 1 from impeller shroud 3, conical ring 2 playsFlow-disturbing effect, makes impeller shroud 3 and the joint gap of air inlet welding circle 1 cannot form effective runner, thereby canLower overall leakage rate, thereby play the effect that improves fan efficiency.
Described conical ring 2 adopts steel or aluminium alloy to make.
The thickness of described conical ring 2 is 2mm-4mm.
Described conical ring 2 is 3mm with impeller shroud 3 front end maximum transversal spacing sizes.
Operation principle of the present utility model is: impeller shroud 3 is fixed with taper with a side of air inlet welding circle 1 junctionRing 2, and conical ring 2 is welded on air inlet welding circle 1, and weld with impeller shroud 3 and air inlet the inner side of conical ring 2Circle 1 junction is oppositely arranged, therefore in the time that air-flow encloses 1 joint gap and spills from impeller shroud 3 and air inlet welding,Conical ring 2 plays flow-disturbing effect, makes impeller shroud 3 and the joint gap of air inlet welding circle 1 cannot form effective streamRoad, thus overall leakage rate can be lowered, thereby play the effect that improves fan efficiency.
To those skilled in the art, obviously the utility model is not limited to the details of above-mentioned example embodiment, Er QieDo not deviate from the situation of spirit of the present utility model or essential characteristic, can realize the utility model with other concrete form.Therefore, no matter from which point, all should regard embodiment as exemplary, and be nonrestrictive, this practicality is newThe scope of type is limited by claims instead of above-mentioned explanation, is therefore intended to be equal to containing of important document by what drop on claimAll changes in justice and scope are included in the utility model. Any Reference numeral in claim should be considered as to restrictionRelated claim.
In addition although should be appreciated that this description is described according to embodiment, be not that each embodiment only comprises,A technical scheme independently, this narrating mode of description is only for clarity sake, those skilled in the art should be byDescription is done as a whole, and the technical scheme in each embodiment also can be through appropriately combined, and forming those skilled in the art canWith other embodiments of understanding.
Claims (4)
1. an air inlet device for preventing leakage, comprises impeller bodies, described impeller bodies by impeller hub disk, impeller blade,Impeller shroud (3) and air inlet welding circle (1) form, and described impeller blade is distributed on impeller hub disk, impeller shroud (3)Be welded in the front end of impeller blade; The front end of impeller shroud (3) is connected with trumpet-shaped air inlet welding circle (1); Its featureBe, described impeller shroud (3) is fixed with conical ring (2) with a side of air inlet welding circle (1) junction, andIt is upper that conical ring (2) is welded in air inlet welding circle (1), the inner side of conical ring (2) and impeller shroud (3) and air inletThe junction of welding circle (1) is oppositely arranged.
2. air inlet device for preventing leakage according to claim 1, is characterized in that, described conical ring (2) is adoptedMake with steel or aluminium alloy.
3. air inlet device for preventing leakage according to claim 1, is characterized in that, described conical ring (2)Thickness is 2mm-4mm.
4. air inlet device for preventing leakage according to claim 1, is characterized in that, described conical ring (2) withImpeller shroud (3) front end maximum transversal spacing size is 3mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521068831.9U CN205243924U (en) | 2015-12-22 | 2015-12-22 | Device is prevented leaking by fan air intake |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521068831.9U CN205243924U (en) | 2015-12-22 | 2015-12-22 | Device is prevented leaking by fan air intake |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205243924U true CN205243924U (en) | 2016-05-18 |
Family
ID=55943010
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201521068831.9U Active CN205243924U (en) | 2015-12-22 | 2015-12-22 | Device is prevented leaking by fan air intake |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205243924U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107917100A (en) * | 2017-10-26 | 2018-04-17 | 珠海格力电器股份有限公司 | The connection structure and air-conditioning of baffle liner and fan impeller front disc |
| CN107965475A (en) * | 2017-05-09 | 2018-04-27 | 宁波方太厨具有限公司 | A kind of noise reducing type radial fan |
| CN109931291A (en) * | 2019-05-08 | 2019-06-25 | 泛仕达机电股份有限公司 | A kind of rotary collector |
-
2015
- 2015-12-22 CN CN201521068831.9U patent/CN205243924U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107965475A (en) * | 2017-05-09 | 2018-04-27 | 宁波方太厨具有限公司 | A kind of noise reducing type radial fan |
| CN107917100A (en) * | 2017-10-26 | 2018-04-17 | 珠海格力电器股份有限公司 | The connection structure and air-conditioning of baffle liner and fan impeller front disc |
| CN107917100B (en) * | 2017-10-26 | 2019-03-26 | 珠海格力电器股份有限公司 | The connection structure and air-conditioning of baffle liner and fan impeller front disc |
| CN109931291A (en) * | 2019-05-08 | 2019-06-25 | 泛仕达机电股份有限公司 | A kind of rotary collector |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: Device is prevented leaking by fan air intake Effective date of registration: 20180713 Granted publication date: 20160518 Pledgee: Feidong SME financing Company limited by guarantee Pledgor: ANHUI GUOMAO ELECTRICAL EQUIPMENT CO., LTD. Registration number: 2018340000308 |