CN104826888A - Air amplifier capable of increasing air flow - Google Patents
Air amplifier capable of increasing air flow Download PDFInfo
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- CN104826888A CN104826888A CN201510185729.5A CN201510185729A CN104826888A CN 104826888 A CN104826888 A CN 104826888A CN 201510185729 A CN201510185729 A CN 201510185729A CN 104826888 A CN104826888 A CN 104826888A
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Abstract
The invention provides an air amplifier capable of increasing air flow, which comprises an outer sleeve and a lining inserted in the outer sleeve, wherein the outer sleeve is provided with a through hole, and the part of the lining corresponding to the through hole is in a furled shape, so that a closed space formed between the outer sleeve and the lining is communicated with the through hole and is used for receiving external compressed air; a gap communicated with the closed space is formed between the air inlet end part of the lining and the outer sleeve, and the gap is communicated with an air channel in the lining; the inner wall of the air inlet end part is in a round angle shape, so that air flowing in through the through hole, the closed space and the gap generates a coanda effect on the round angle-shaped inner wall. After adopting above-mentioned technical scheme, the velocity of flow that can increase the air outflow to can be according to the real-time adjustment of operating mode.
Description
Technical field
The present invention relates to cooling device field, particularly relate to a kind of air amplifier increasing air mass flow.
Background technology
In prior art, the strengthening mechanism mainly press quenching of aluminium extruded section, general production procedure is: extruding-quenching-fracture-aligning-sawing-frame up-timeliness.The effect of quenching directly has influence on the mechanical property of section bar, and the decrease speed of quenching segment type material temperature is directly proportional to section bar performance, and in quenching section, existing conventional method is blower fan cooling and Water cooling.Wherein blower fan cooling provides air-flow to carry out cooling down high-temperature section bar by the blower fan of section bar discharging opening.
The online air cooling system of existing extruding board, be adopt blower fan air blast mode, wind-force dispersion is not concentrated, and wind intensity is inadequate.Therefore, need a kind of provide powerful and and the device of wind-force concentrated, the aluminium section bar to quenching carries out blower fan cooling.
Summary of the invention
In order to overcome above-mentioned technological deficiency, the object of the present invention is to provide a kind of air amplifier increasing air mass flow, it can amplify control flow and flow velocity, and can adjust flow and the flow velocity of air-out according to duty requirements.
The invention discloses a kind of air amplifier increasing air mass flow, comprise overcoat and the interior liner inserting in described overcoat, described overcoat offers a through hole, the part of the corresponding described through hole of described liner is in drawing shape in, the confined space formed between described overcoat with described liner is communicated with, for receiving external compression air with described through hole; The air inlet end of described liner has a gap be communicated with described confined space with described outer inner room, and described gap is communicated with the air duct of described liner; The inwall of described air inlet end is radiussed, makes to produce Coanda effect through described through hole, confined space, gap leaked-in air in described radiussed inwall.
Preferably, described liner has external screw thread, and described overcoat has internal thread, and described external screw thread and screw-internal thread fit make described liner and overcoat interference fit.
Preferably, the outer surface of described liner is provided with a groove, and a sealing ring is located in described groove, isolated described confined space.
Preferably, described overcoat has a brace table near the end of gas outlet, for an accommodating centring ring; Described centring ring can banding to change the air mass flow of described liner.
Preferably, the outer wall of described overcoat is arranged with a retainer plate, by described retainer plate, described air amplifier is connected with miscellaneous part.
Preferably, the radial width of described liner increases along air inlet to the direction of gas outlet, gradually to increase air-out area.
Preferably, described overcoat is provided with an annular boss near the part of air inlet, for supporting described liner; Described annular boss and described liner are matched in clearance.
After have employed technique scheme, compared with prior art, there is following beneficial effect:
1. the inflow path of external compression air and outflow path are in oppositely, can increase the compressed-air actuated rate of outflow further, improve the effect of Coanda effect;
2. adjust the sectional area of gas port by centring ring in good time, thus change the flow and flow velocity of discharging air.
Accompanying drawing explanation
Fig. 1 is the liner sectional view met in the air amplifier of one embodiment of the present invention;
Fig. 2 is the inner lining structure schematic diagram met in the air amplifier of one embodiment of the present invention;
Fig. 3 is the overcoat sectional view met in the air amplifier of one embodiment of the present invention;
Fig. 4 is the jacket structure schematic diagram met in the air amplifier of one embodiment of the present invention;
Fig. 5 is the sectional view of the air amplifier meeting one embodiment of the present invention;
Fig. 6 is the STRUCTURE DECOMPOSITION figure of the air amplifier meeting one embodiment of the present invention.
Reference numeral:
100-air amplifier;
110-overcoat, 111-through hole, 112-brace table, 113-centring ring, 114-retainer plate, 115-annular boss;
120-liner, 121-air inlet end, 122-groove, 123-sealing ring;
130-confined space;
140-gap;
150-air inlet;
160-gas outlet.
Detailed description of the invention
Advantage of the present invention is set forth further below in conjunction with accompanying drawing and specific embodiment.
Composition graphs 1 to Fig. 6, for the liner 120 of air amplifier 100 of the present invention and overcoat 110 combine after structural representation.In the present invention, air amplifier 100 includes an overcoat 110 and liner 120, inserts in overcoat 110 in liner 120, forms this air amplifier 100.In order to provide external compression air to air amplifier 100, overcoat 110 offers a through hole 111, this through hole 111 is communicated with external compressed air source and overcoat 110 is inner, to should through hole 111, the part of its liner 120 relative in the outlet side of overcoat 110 inside is in drawing shape in, the i.e. segment section inward collapsible of liner 120, form one and be similar to bell-mouthed structure, then form a confined space 130 between furlling part and overcoat 110, this confined space 130 is communicated with through hole 111, and external compression air transfers in this confined space 130 after through hole 111 is sent into.Simultaneously, after liner 120 is fixedly connected with overcoat 110, have gap 140 between the two, and this gap 140 is communicated with the air duct of confined space 130 with liner 120 inside respectively, thus through hole 111, confined space 130, gap 140 define one for the circulation passage of external compression air circulation.In this embodiment, gap 140 is formed in the air inlet end 121 of liner 120, namely in liner 120 near the end of air inlet 150.Then in order to coordinate the air flowed out from gap 140, the inwall of the air inlet end 121 of liner 120 is radiussed, the design of this radiussed, the air flowed out from gap 140 is circulated along radiused surface, and flow along the direction of air inlet 150 to gas outlet 160, thus form negative pressure in liner 120 inside, increase speed and the air velocity of the suction of liner 120 inner air further.With conventional design difference be, because compressed air needs to flow to gap 140 with the direction of reverse liner 120 inner air flowing from confined space 130 in advance, flow out along fillet inwall from gap 140 with the direction of forward liner 120 inner air flowing again, the air velocity that the fold back design of this air flowing makes fillet place flow is faster, which increases the Coanda effect (Coanda Effect) of the fluid at fillet place.
Simultaneously known, because compressed air is flowed out by said flow passage, form negative pressure, the air intake near air inlet 150, not only increases the speed of charge air flow, also achieves the object increasing air-flow simultaneously.
Further, consult Fig. 5, liner 120 has internal thread, overcoat 110 has external screw thread, external screw thread and screw-internal thread fit, makes liner 120 and overcoat 110 interference fit, not only increase the degree that closely cooperates of liner 120 and overcoat 110, and both airtight relations are better.
Optional or preferably, in order to the obturation effect between further airtight liner 120 and overcoat 110, liner 120 surface is provided with a groove 122, and a sealing ring 123 is provided with in this groove 122, when liner 120 and overcoat 110 in conjunction with time, sealing ring 123 is close to overcoat 110 inwall and liner 120 outer wall respectively, with isolated confined space 130.
Further, the overcoat 110 of air amplifier 100 has a brace table 112 near the end of gas outlet 160, brace table 112 is arranged a centring ring 113, this centring ring 113 is set in the outside of overcoat 110 and liner 120, for the end of fastening outer sleeve 110 and the combination of liner 120.Be understandable that, this centring ring 113 is collapsible or extend out, when centring ring 113 shrinks, the liner 120 at centring ring 113 place and overcoat 110 part are also by corresponding contraction, then the area of the flow area at gas outlet 160 place reduces, and the air mass flow flowed out is reduced, otherwise, when centring ring 113 extends out, the air mass flow of outflow increases.The centring ring 113 that this is collapsible or extend out can adopt flexible structural design, or is changed the position of brace table 112 in overcoat 110, to reach the effect of centring ring 113 banding liner 120.
Optional or preferably, the outer wall of overcoat 110 is provided with a retainer plate 114 further, can be connected as cooled lathe with external component, thus the position of fixed air amplifier 100.
Consult Fig. 6, clearly demonstrate air amplifier 100 of the present invention in this STRUCTURE DECOMPOSITION figure by sealing ring 123, centring ring 113, interfix retainer plate 114 from-inner-to-outer, ensure that liner 120 and overcoat 110, overcoat 110 are errorless with the connection of external component.
Continue to consult Fig. 1 or Fig. 5, in one embodiment of the present invention, the radial width of liner 120 increases gradually along the direction of air inlet 150 to gas outlet 160, namely in sectional view, the inwall of liner 120 in outer expanding shape, to increase the air-out area of gas outlet 160.Known is, according to the general principle of air amplifier 100, the flow velocity multiple that air amplifies only flows into the area of section S1 of position and the area of section S2 of overcoat 110 and liner 120 junction ratio with compressed air is relevant, therefore, increase the area of section of gas outlet 160, correspondingly can increase air-out area.
In another preferred embodiment, overcoat 110 is provided with an annular boss 115 near the part of air inlet 150, and this annular boss 115 is connected with the end of air inlet 150 alternatively, to form the ora terminalis of air inlet 150 smoothly.This annular boss 115 can be used for support liner 120, and with liner 120 matched in clearance, to form previously described gap 140.As in the previous paragraph, the area ratio of S1 and S2 is larger, and air velocity is faster, and this boss can reduce the area of section S2 of overcoat 110 and liner 120 junction further, thus improves the effect of air amplification.
Should be noted that, embodiments of the invention have preferably implementation, and not any type of restriction is done to the present invention, any person skilled in art of being familiar with may utilize the technology contents of above-mentioned announcement change or be modified to equivalent effective embodiment, in every case the content of technical solution of the present invention is not departed from, the any amendment done above embodiment according to technical spirit of the present invention or equivalent variations and modification, all still belong in the scope of technical solution of the present invention.
Claims (7)
1. can increase an air amplifier for air mass flow, comprise overcoat and the interior liner inserting in described overcoat, it is characterized in that,
Described overcoat offers a through hole, and the part of the corresponding described through hole of described liner, in drawing shape in, makes the confined space formed between described overcoat with described liner be communicated with described through hole, for receiving external compression air;
The air inlet end of described liner has a gap be communicated with described confined space with described outer inner room, and described gap is communicated with the air duct of described liner;
The inwall of described air inlet end is radiussed, makes to produce Coanda effect through described through hole, confined space, gap leaked-in air in described radiussed inwall.
2. air amplifier as claimed in claim 1, is characterized in that,
Described liner has external screw thread, and described overcoat has internal thread, and described external screw thread and screw-internal thread fit make described liner and overcoat interference fit.
3. air amplifier as claimed in claim 1, is characterized in that,
The outer surface of described liner is provided with a groove, and a sealing ring is located in described groove, isolated described confined space.
4. air amplifier as claimed in claim 3, is characterized in that,
Described overcoat has a brace table near the end of gas outlet, for an accommodating centring ring;
Described centring ring can banding to change the air mass flow of described liner.
5. air amplifier as claimed in claim 1, is characterized in that,
The outer wall of described overcoat is arranged with a retainer plate, by described retainer plate, described air amplifier is connected with miscellaneous part.
6. air amplifier as claimed in claim 1, is characterized in that,
The radial width of described liner increases along air inlet to the direction of gas outlet, gradually to increase air-out area.
7. air amplifier as claimed in claim 1, is characterized in that,
Described overcoat is provided with an annular boss near the part of air inlet, for supporting described liner;
Described annular boss and described liner are matched in clearance.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510185729.5A CN104826888B (en) | 2015-04-17 | 2015-04-17 | Air amplifier capable of increasing air flow |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510185729.5A CN104826888B (en) | 2015-04-17 | 2015-04-17 | Air amplifier capable of increasing air flow |
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| CN104826888A true CN104826888A (en) | 2015-08-12 |
| CN104826888B CN104826888B (en) | 2017-07-07 |
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| CN201510185729.5A Active CN104826888B (en) | 2015-04-17 | 2015-04-17 | Air amplifier capable of increasing air flow |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102018108722A1 (en) | 2018-04-12 | 2019-10-17 | Pro-Iroda Industries, Inc. | Combustion device with an airflow amplifier |
| CN110514389A (en) * | 2019-09-30 | 2019-11-29 | 西南科技大学 | A kind of hole wall porosity of wind tunnel test is continuously adjusted device and experimental method |
| CN110686850A (en) * | 2019-09-30 | 2020-01-14 | 中国空气动力研究与发展中心高速空气动力研究所 | Test device and test method for continuously adjusting opening-closing ratio of transonic test section |
| US10670263B2 (en) | 2017-01-26 | 2020-06-02 | Pro-Iroda Industries, Inc. | Burning device with an air amplifier |
| CN112669730A (en) * | 2020-12-30 | 2021-04-16 | 重庆平安标牌制作有限公司 | Heat dissipation structure for luminous character |
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| US6240911B1 (en) * | 1998-06-12 | 2001-06-05 | Competition Cams, Inc. | Air amplifier for nitrous oxide injection application |
| GB2431124A (en) * | 2005-10-15 | 2007-04-18 | John Alan Coller | Amplifying the flow in a generator of smoke or fog |
| CN201771874U (en) * | 2010-08-05 | 2011-03-23 | 无锡英威华耀科技有限公司 | Air jetting amplifier |
| CN203685712U (en) * | 2014-01-03 | 2014-07-02 | 谭文玉 | Air amplifier |
| CN203717474U (en) * | 2014-02-17 | 2014-07-16 | 鹤山市雷迅新农机械科技有限公司 | Negative-pressure air amplifier for energy saver of numerical control quantum hydrogen-oxygen internal combustion engine |
| CN204099127U (en) * | 2014-03-24 | 2015-01-14 | 华北电力大学 | A kind of wind-power generating system |
| CN204638762U (en) * | 2015-04-17 | 2015-09-16 | 苏州铭德铝业有限公司 | A kind of air amplifier increasing air mass flow |
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2015
- 2015-04-17 CN CN201510185729.5A patent/CN104826888B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6240911B1 (en) * | 1998-06-12 | 2001-06-05 | Competition Cams, Inc. | Air amplifier for nitrous oxide injection application |
| GB2431124A (en) * | 2005-10-15 | 2007-04-18 | John Alan Coller | Amplifying the flow in a generator of smoke or fog |
| CN201771874U (en) * | 2010-08-05 | 2011-03-23 | 无锡英威华耀科技有限公司 | Air jetting amplifier |
| CN203685712U (en) * | 2014-01-03 | 2014-07-02 | 谭文玉 | Air amplifier |
| CN203717474U (en) * | 2014-02-17 | 2014-07-16 | 鹤山市雷迅新农机械科技有限公司 | Negative-pressure air amplifier for energy saver of numerical control quantum hydrogen-oxygen internal combustion engine |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10670263B2 (en) | 2017-01-26 | 2020-06-02 | Pro-Iroda Industries, Inc. | Burning device with an air amplifier |
| DE102018108722A1 (en) | 2018-04-12 | 2019-10-17 | Pro-Iroda Industries, Inc. | Combustion device with an airflow amplifier |
| CN110514389A (en) * | 2019-09-30 | 2019-11-29 | 西南科技大学 | A kind of hole wall porosity of wind tunnel test is continuously adjusted device and experimental method |
| CN110686850A (en) * | 2019-09-30 | 2020-01-14 | 中国空气动力研究与发展中心高速空气动力研究所 | Test device and test method for continuously adjusting opening-closing ratio of transonic test section |
| CN110514389B (en) * | 2019-09-30 | 2020-11-24 | 西南科技大学 | Hole wall opening-closing ratio continuously adjustable device for wind tunnel test and test method |
| CN110686850B (en) * | 2019-09-30 | 2021-07-27 | 中国空气动力研究与发展中心高速空气动力研究所 | Test device and test method for continuously adjusting opening-closing ratio of transonic test section |
| CN112669730A (en) * | 2020-12-30 | 2021-04-16 | 重庆平安标牌制作有限公司 | Heat dissipation structure for luminous character |
| CN112669730B (en) * | 2020-12-30 | 2022-07-08 | 重庆平安标牌制作有限公司 | Heat dissipation structure for luminous character |
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| Publication number | Publication date |
|---|---|
| CN104826888B (en) | 2017-07-07 |
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Address after: 215143 No. 2779, Taidong Road, Huangdai Town, Xiangcheng District, Suzhou City, Jiangsu Province Patentee after: Zhongyifeng Jinyi (Suzhou) Technology Co.,Ltd. Address before: 215143 building B, No. 1, Yongchun industrial building, Huangdai Panyang Industrial Park, Xiangcheng District, Suzhou, Jiangsu Province Patentee before: SUZHOU MINGDE ALUMINUM Co.,Ltd. |