CN102182712A - Fan - Google Patents
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- Publication number
- CN102182712A CN102182712A CN2011101168769A CN201110116876A CN102182712A CN 102182712 A CN102182712 A CN 102182712A CN 2011101168769 A CN2011101168769 A CN 2011101168769A CN 201110116876 A CN201110116876 A CN 201110116876A CN 102182712 A CN102182712 A CN 102182712A
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- CN
- China
- Prior art keywords
- relief opening
- flow
- guiding surface
- nozzle
- annular
- 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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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D25/00—Pumping installations or systems
- F04D25/02—Units comprising pumps and their driving means
- F04D25/08—Units comprising pumps and their driving means the working fluid being air, e.g. for ventilation
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04F—PUMPING OF FLUID BY DIRECT CONTACT OF ANOTHER FLUID OR BY USING INERTIA OF FLUID TO BE PUMPED; SIPHONS
- F04F5/00—Jet pumps, i.e. devices in which flow is induced by pressure drop caused by velocity of another fluid flow
- F04F5/14—Jet pumps, i.e. devices in which flow is induced by pressure drop caused by velocity of another fluid flow the inducing fluid being elastic fluid
- F04F5/16—Jet pumps, i.e. devices in which flow is induced by pressure drop caused by velocity of another fluid flow the inducing fluid being elastic fluid displacing elastic fluids
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04F—PUMPING OF FLUID BY DIRECT CONTACT OF ANOTHER FLUID OR BY USING INERTIA OF FLUID TO BE PUMPED; SIPHONS
- F04F5/00—Jet pumps, i.e. devices in which flow is induced by pressure drop caused by velocity of another fluid flow
- F04F5/44—Component parts, details, or accessories not provided for in, or of interest apart from, groups F04F5/02 - F04F5/42
- F04F5/46—Arrangements of nozzles
Abstract
The invention relates to a bladeless fan device for generating airflow; the fan device is provided with a nozzle having an internal channel; one side of the internal channel, which is adjacent to a flow-leading surface, is provided with an insulating layer; the internal channel is divided into a main channel and a noise-reducing space adjacent to the flow-leading surface by the insulating layer; and the noise-reducing space can reduce the noise of the fan. The invention also relates to a nozzle used in the fan device.
Description
Technical field
The present invention relates to relate to fan assembly, relate in particular to a kind of no blade fan and tuyere assembly thereof.
Background technique
Common fan is a blade type, and blade relies on its lift angle in rotary course, forms wind-force forward.This traditional fan, its air-out is interrupted, wind-force pulsation ground impacts and have discomfort on human body.
People utilized the enlarge-effect on continuous air-out principle and coanda surface afterwards, had produced no blade fan, had solved the problems referred to above.On May 6th, 2009 disclosed " fan ", just belong to no blade fan as Chinese patent literature CN101424279A, this disclosure of the Invention a kind of fan assembly that is used to produce air stream.The vaneless fan assembly that is provided comprises nozzle and the member that is used to produce by the air-flow of nozzle.Nozzle comprises the inner passage, be used to receive from the relief opening of the air-flow of inner passage and the coanda surface of next-door neighbour's relief opening location, and relief opening is arranged to steering flow and is flow through the coanda surface.This fan provides and need not the device that blade fan just can produce air-flow and cooling air flow, promptly produces air-flow with the on-bladed fan.
Yet, in realize using, still being apparent not enough of aforementioned patent technology, air quantity hour, effective not as good as conventional fan, when air quantity was big, because of relief opening goes out the wind speed height, whole wind produced ear-piercing dry sound, when air output was big again, tuyere can produce shake, does not meet usage requirement.
Summary of the invention
Main purpose of the present invention is to overcome the deficiency that above-mentioned prior art easily produces dry sound, and the fan of the dry sound of a kind of difficult generation is provided.
Purpose of the present invention can be achieved through the following technical solutions:
A kind of no blade fan device that is used to produce air stream, this fan assembly comprises nozzle and passes through the member of the air-flow of described nozzle with generation, described nozzle comprises the inner passage, be used to receive from the relief opening of the air-flow of described inner passage and the flow-guiding surface that is close to described relief opening location, described relief opening is set to steering flow and flows through described flow-guiding surface, it is characterized in that: described inner passage has a separation layer near a side of described flow-guiding surface, and described separation layer is defined as described inner passage in the dry space that falls of main passage and close described flow-guiding surface.
Fan assembly is characterized in that: described nozzle is annular, or roughly is annular, or is circular at least in part.
Fan assembly is characterized in that: described relief opening is annular, or roughly is annular, or is circular at least in part.
Fan assembly is characterized in that: described relief opening has axis, and described flow-guiding surface is extended symmetrically about this axis.
Fan assembly is characterized in that: the angle between described flow-guiding surface and the described axis at 10 ° to the scope of 14 ° of degree.This angle is meant in passing through the plane of axis, the angle between flow-guiding surface and the axis.
Fan assembly is characterized in that: described angle is further defined to 11 ° or 12 ° or 12.5 ° or 13 °.
Fan assembly is characterized in that: described relief opening and described inner passage are concentric.
Fan assembly is characterized in that: described relief opening, described inner passage, described to fall dry space three be concentric.
Fan assembly is characterized in that: described separation layer has an inclined-plane, and this inclined-plane is defined as described main passage near the space greater than the relative the other end, the space of an end of relief opening.
Fan assembly, it is characterized in that: described nozzle is annular, described relief opening is an annular, described relief opening has axis, described flow-guiding surface is extended symmetrically about this axis, and the angle between described flow-guiding surface and the described axis is 12 °, and described relief opening, described inner passage, described to fall dry space three be concentric, described separation layer has an inclined-plane, and this inclined-plane is defined as described main passage near the space greater than the relative the other end, the space of an end of relief opening.
Purpose of the present invention can also be achieved through the following technical solutions:
A kind of nozzle that is used to not have blade fan, this nozzle is the annular around an axis symmetry, it is characterized in that: vane and back vane before this nozzle comprises, preceding vane and back vane define the inner passage of annular jointly, this nozzle also comprises the relief opening of annular, relief opening defines for the gap at the place of closing by preceding vane and back vane in front/rear vane and forms, the outer wall of back vane constitutes flow-guiding surface, the inboard of back vane is provided with separation layer, and separation layer is defined as described inner passage in the dry space that falls of main passage and close described flow-guiding surface.
Nozzle according to claim 11 is characterized in that: described relief opening for the annular, described flow-guiding surface is extended symmetrically about described axis, the angle between described flow-guiding surface and the described axis 10 ° to the scope of 14 ° of degree, preferred value is 12 °.
Nozzle according to claim 11 is characterized in that: described separation layer has an inclined-plane, and this inclined-plane is defined as described main passage near the space greater than the relative the other end, the space of an end of relief opening.
Nozzle is characterized in that: described fall dry space be the annular enclosed space.
Nozzle is characterized in that: preceding vane, back vane and separation layer all are plastic materialss, and described back vane and described separation layer combine by the plastically welding mode.
Fan assembly of the present invention, the inner passage has a separation layer near a side of described flow-guiding surface, and separation layer is defined as described inner passage the main passage and near the dry space that falls of flow-guiding surface, compared with prior art, is difficult for producing dry sound.Tuyere of the present invention also has and falls this characteristics technical characteristics of dry space, so concurrent application.
Description of drawings
Fig. 1 is the schematic representation of first embodiment of the invention.
Fig. 2 is the local enlarged diagram at A place among Fig. 1.
Fig. 3 is in the first embodiment of the invention, angle between flow-guiding surface and the axis and air-supply effect test schematic representation.
Embodiment
The invention will be further described below in conjunction with accompanying drawing.
With reference to figure 1, Fig. 2, first embodiment of the invention is a kind of no blade fan device that is used to produce air stream, this fan assembly comprises nozzle 10 and passes through the member 20 of the air-flow of described nozzle 10 with generation, described nozzle 10 comprises inner passage 101, be used to receive from the relief opening 102 of the air-flow of described inner passage 101 and the flow-guiding surface 106 that is close to described relief opening 102 location, described relief opening 102 is set to steering flow and flows through described flow-guiding surface 106, described inner passage 101 has a separation layer 103 near a side of described flow-guiding surface 106, and described separation layer 103 is defined as described inner passage 101 in the dry space 104 that falls of main passage 105 and close described flow-guiding surface.
In the present embodiment, described nozzle 10 is an annular, should be appreciated that the replacement scheme as present embodiment, and described nozzle 10 also can roughly be an annular, or is circular at least in part.
In the present embodiment, described relief opening 102 is an annular, should be appreciated that the replacement scheme as present embodiment, and described relief opening 102 also can roughly be an annular, or is circular at least in part.In the present embodiment, described relief opening 102 has axis 107, and described flow-guiding surface 106 is extended symmetrically about this axis 107.In the present embodiment, the angle between described flow-guiding surface 106 and the described axis 107 is 12 °; When the replacement scheme that should be understood that as present embodiment, the angle between described flow-guiding surface 106 and the described axis 107 is arranged to other angle through checking, also can realize purpose of the present invention as 11 ° or 11.5 ° or 12.5 ° or 13 °.With upper angle is empirical value, with reference to figure 3, provided the experimental technique of the angle between described flow-guiding surface 106 and the described axis 107 and the effect of blowing, present embodiment has the spiral that is driven by brushless electric machine and goes out wind apparatus in member 20 inside, the rotating speed of brushless electric machine is chosen to be 8500 commentaries on classics/min, and the diameter of flow-guiding surface 106 is 310mm, and this moment, the air quantity of relief opening was 49 gallons/s, if, this value is set at 49 gallons/s by the rotating speed of regulating brushless electric machine because of deficiency or above 49 gallons/s.First group of test is identical for given one group of other parameter, only flow-guiding surface 106 is different with the angle between the described axis 107 goes out wind apparatus, the rotating speed of attention by regulating brushless electric machine all is set at 49 gallons/s with the airflow value of relief opening, test the air supplying distance that wind apparatus of different angles with same weathercock, hiking up 15 ° of angles with the wind weathercock is example, and the data that the inventor obtains are as follows:
Flow-guiding surface and axis angle a1, a2, a3 ... an------air supplying distance L
6°------5m
7°------6.5m
8°------7.1m
9°------7.7m
10°-----8.5m
11°------9.3m
12°------9.5m
13°------9.3m
14°------8m
15°------6.5m
The inventor is parameter such as the diameter by single ground conversion flow-guiding surface 106, exhaust port air output again, though find that air supplying distance changes to some extent, but the relation of flow-guiding surface and axis angle and air supplying distance is constant, and promptly the air-supply effect is imitated in 10 ° to 14 ° scope.
In the present embodiment, described relief opening 102, described inner passage 101, described to fall dry space 104 threes be concentric.
In the present embodiment, described separation layer 103 has an inclined-plane, more particularly, is to prolong the axis 107 symmetrically arranged conical surfaces, and this inclined-plane is defined as described main passage 105 near the space greater than the relative the other end, the space of an end of relief opening 102.
In the present embodiment, described fall dry space 104 be the sealing the space.As the replacement scheme of present embodiment, it also can be open falling dry space, as in the direction towards exhaust port perforate being set, can further reduce the weight of fan.
Second embodiment of the present invention is a kind of tuyere, be with the difference of first embodiment of the invention, this nozzle is further defined to the annular around an axis symmetry, vane and back vane before this nozzle comprises, preceding vane and back vane define the inner passage of annular jointly, this nozzle also comprises the relief opening of annular, relief opening defines for the gap at the place of closing by preceding vane and back vane in front/rear vane and forms, the outer wall of back vane constitutes flow-guiding surface, the inboard of back vane is provided with separation layer, and separation layer is defined as described inner passage in the dry space that falls of main passage and close described flow-guiding surface.Described to fall dry space be totally enclosed space, and preceding vane, back vane and separation layer all are plastic materialss, and described back vane and described separation layer combine by the plastically welding mode.
Claims (15)
1. no blade fan device that is used to produce air stream, this fan assembly comprises nozzle and passes through the member of the air-flow of described nozzle with generation, described nozzle comprises the inner passage, be used to receive from the relief opening of the air-flow of described inner passage and the flow-guiding surface that is close to described relief opening location, described relief opening is set to steering flow and flows through described flow-guiding surface, it is characterized in that: described inner passage has a separation layer near a side of described flow-guiding surface, and described separation layer is defined as described inner passage in the dry space that falls of main passage and close described flow-guiding surface.
2. fan assembly according to claim 1 is characterized in that: described nozzle is annular, or roughly is annular, or is circular at least in part.
3. fan assembly according to claim 1 is characterized in that: described relief opening is annular, or roughly is annular, or is circular at least in part.
4. fan assembly according to claim 3 is characterized in that: described relief opening has axis, and described flow-guiding surface is extended symmetrically about this axis.
5. fan assembly according to claim 4 is characterized in that: the angle between described flow-guiding surface and the described axis at 10 ° to the scope of 14 ° of degree.
6. fan assembly according to claim 5 is characterized in that: described angle is further defined to 11 ° or 12 ° or 12.5 ° or 13 °.
7. fan assembly according to claim 1 is characterized in that: described relief opening and described inner passage are concentric.
8. fan assembly according to claim 1 is characterized in that: described relief opening, described inner passage, described to fall dry space three be concentric.
9. according to any described fan assembly of claim, it is characterized in that: described separation layer has an inclined-plane, and this inclined-plane is defined as described main passage near the space greater than the relative the other end, the space of an end of relief opening.
10. fan assembly according to claim 1, it is characterized in that: described nozzle is annular, described relief opening is an annular, described relief opening has axis, described flow-guiding surface is extended symmetrically about this axis, angle between described flow-guiding surface and the described axis is 12 °, described relief opening, described inner passage, described to fall dry space three be concentric, described separation layer has an inclined-plane, and this inclined-plane is defined as described main passage near the space greater than the relative the other end, the space of an end of relief opening.
11. nozzle that is used to not have blade fan, this nozzle is the annular around an axis symmetry, it is characterized in that: vane and back vane before this nozzle comprises, preceding vane and back vane define the inner passage of annular jointly, this nozzle also comprises the relief opening of annular, relief opening defines for the gap at the place of closing by preceding vane and back vane in front/rear vane and forms, the outer wall of back vane constitutes flow-guiding surface, the inboard of back vane is provided with separation layer, and separation layer is defined as described inner passage in the dry space that falls of main passage and close described flow-guiding surface.
12. nozzle according to claim 11, it is characterized in that: described relief opening is annular, described flow-guiding surface is extended symmetrically about described axis, the angle between described flow-guiding surface and the described axis 10 ° to the scope of 14 ° of degree, preferred value is 12 °.
13. nozzle according to claim 11 is characterized in that: described separation layer has an inclined-plane, and this inclined-plane is defined as described main passage near the space greater than the relative the other end, the space of an end of relief opening.
14., it is characterized in that according to claim 11 or 13 described nozzles: described fall dry space be the annular enclosed space.
15. nozzle according to claim 14 is characterized in that: preceding vane, back vane and separation layer all are plastic materialss, and described back vane and described separation layer combine by the plastically welding mode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011101168769A CN102182712A (en) | 2011-05-07 | 2011-05-07 | Fan |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011101168769A CN102182712A (en) | 2011-05-07 | 2011-05-07 | Fan |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102182712A true CN102182712A (en) | 2011-09-14 |
Family
ID=44568982
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011101168769A Pending CN102182712A (en) | 2011-05-07 | 2011-05-07 | Fan |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102182712A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102367814A (en) * | 2011-09-30 | 2012-03-07 | 王宁雷 | Nozzle of bladeless fan |
| CN102661294A (en) * | 2012-04-10 | 2012-09-12 | 魏建峰 | Bladeless fan |
| CN103375442A (en) * | 2012-04-11 | 2013-10-30 | 江西维特科技有限公司 | Bladeless fan and nozzle thereof |
| CN105134653A (en) * | 2012-12-11 | 2015-12-09 | 晋江市东亨工业设计有限公司 | Airflow jetting device used for bladeless fan |
| CN105275892A (en) * | 2015-11-06 | 2016-01-27 | 西安近代化学研究所 | Remote-delivery bladeless ventilating system used in gunpowder and explosive field |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1892117A (en) * | 2005-07-04 | 2007-01-10 | 牛忠臣 | Air collecting-discharging device |
| WO2009000978A2 (en) * | 2007-05-25 | 2008-12-31 | Liebherr-Aerospace Toulouse Sas | Gas mixing pump with variable injection section |
| CN101424279A (en) * | 2007-09-04 | 2009-05-06 | 戴森技术有限公司 | Fan |
| CN202091269U (en) * | 2011-05-07 | 2011-12-28 | 应辉 | Fan device and tuyere thereof |
-
2011
- 2011-05-07 CN CN2011101168769A patent/CN102182712A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1892117A (en) * | 2005-07-04 | 2007-01-10 | 牛忠臣 | Air collecting-discharging device |
| WO2009000978A2 (en) * | 2007-05-25 | 2008-12-31 | Liebherr-Aerospace Toulouse Sas | Gas mixing pump with variable injection section |
| CN101424279A (en) * | 2007-09-04 | 2009-05-06 | 戴森技术有限公司 | Fan |
| CN202091269U (en) * | 2011-05-07 | 2011-12-28 | 应辉 | Fan device and tuyere thereof |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102367814A (en) * | 2011-09-30 | 2012-03-07 | 王宁雷 | Nozzle of bladeless fan |
| CN102661294A (en) * | 2012-04-10 | 2012-09-12 | 魏建峰 | Bladeless fan |
| CN102661294B (en) * | 2012-04-10 | 2014-10-29 | 宁波宏钜电器科技有限公司 | Bladeless fan |
| CN103375442A (en) * | 2012-04-11 | 2013-10-30 | 江西维特科技有限公司 | Bladeless fan and nozzle thereof |
| CN105134653A (en) * | 2012-12-11 | 2015-12-09 | 晋江市东亨工业设计有限公司 | Airflow jetting device used for bladeless fan |
| CN105134653B (en) * | 2012-12-11 | 2017-05-17 | 晋江市东亨工业设计有限公司 | Airflow jetting device used for bladeless fan |
| CN105275892A (en) * | 2015-11-06 | 2016-01-27 | 西安近代化学研究所 | Remote-delivery bladeless ventilating system used in gunpowder and explosive field |
| CN105275892B (en) * | 2015-11-06 | 2017-08-08 | 西安近代化学研究所 | The teletransmission of explosive wastewater field is without leaf ventilating system |
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Effective date of abandoning: 20110914 |
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