CN101592169B - Pneumatic suction fan - Google Patents
Pneumatic suction fan Download PDFInfo
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- CN101592169B CN101592169B CN200910107601A CN200910107601A CN101592169B CN 101592169 B CN101592169 B CN 101592169B CN 200910107601 A CN200910107601 A CN 200910107601A CN 200910107601 A CN200910107601 A CN 200910107601A CN 101592169 B CN101592169 B CN 101592169B
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- air
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- flow chamber
- eddy flow
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Abstract
The invention discloses a pneumatic suction fan, which comprises an air inlet cavity, a cyclone cavity and an air exhaust cavity which are arranged in a shell orderly and communicated with each other; the shell is provided with a compressed air introducing channel which is communicated with a plurality of jet grooves; a jet included angle is formed between each jet groove and the center of the cyclone cavity; compressed air is jetted into the cyclone cavity through the jet grooves and forms high-speed cyclone; the high-speed cyclone forms a marginal active negative pressure area and a central passive negative pressure area in the cyclone cavity under the action of the jet included angle; and extracted air is sucked through the air inlet cavity under the action of the active and passive negative pressure areas, mixed with the high-speed compressed air through the cyclone cavity, and exhausted through the air exhaust cavity. The pneumatic suction fan quickly and highly efficiently extracts air under the combined action of the active and passive negative pressure areas; and the jet grooves can be designed into various nozzles, so that the high-speed cyclone has quick rotational speed, and simultaneously the compressed air consumption is easy to control.
Description
Technical field
The present invention relates to a kind of extractor fan, be specifically related to that a kind of rate of air sucked in required can be adjusted and pumping efficiency is high, the novel extractor fan of movement-less part.
Background technique
The fan of traditional induced draft fan general using electric drive extractor fan rotates, and the fan of rotation forms negative-pressure air-flow, thereby discharges indoor air outdoor.But in this kind extractor fan, flabellum is positioned on the exhaust passage, is not easy to directly aspirate material.
Improved extractor fan for example utilizes the ejector action of high-speed gas, lets pressurized gas pass through an annular groove, the discharge directions high velocity jet in air draft pipe, and gas quilt under the ejector action of high-speed gas is taken away.But still there are many shortcomings in this traditional Pneumatic suction fan.Because the jetburner of extractor fan is an annular groove, the diameter of annular groove is bigger, and for the ejector action of extracting gases takes place, diameter is big more, and air consumption is also big more, and the minimum air consumption that reaches the effect of bleeding is wayward.And this traditional extractor fan intake-gas only relies on the ejector action of gas, and pumping efficiency is lower.
Therefore, demand a kind of novel pneumatic extractor fan urgently to overcome the defective that exists in the existing extractor fan.
Summary of the invention
The technical problem that the present invention will solve is the deficiency that remedies above-mentioned existing technology, provide a kind of rate of air sucked in required to adjust and pumping efficiency is high, through the good novel pneumatic induced draft fan of performance.
Technical problem of the present invention solves through following technological scheme: a kind of Pneumatic suction fan, comprise shell, and offer the air-inlet cavity, eddy flow chamber and the exhaust cavity that are interconnected in the said shell successively.Offer pressurized air on the shell of said eddy flow chamber correspondence and introduce passage; Said introducing passage is communicated with some jet grooves; Be formed centrally the jet angle in each jet groove and the eddy flow chamber, pressurized air sprays into the eddy flow chamber and forms high speed cyclone via the jet groove, and said high speed cyclone is under the effect of jet angle; Form the active negative pressuren zone at edge and the passive negative pressuren zone at middle part in the eddy flow chamber; Said by extracting gases initiatively and under the effect of passive negative pressuren zone by the air-inlet cavity suction,, discharge with after the high speed pressurized gas mixes via the eddy flow chamber from exhaust cavity.
Preferably, said air-inlet cavity has the outlet that is communicated with the eddy flow chamber, and said eddy flow chamber somewhat larger in diameter is in the air-inlet cavity outlet diameter, and the diameter of said exhaust cavity is not less than the diameter in eddy flow chamber.
Preferably, the shape of quantity or the jet groove of the rate of air sucked in required of said Pneumatic suction fan through adjusting said jet groove or jet groove change with respect to the jet angle at center, eddy flow chamber.
Specifically, said pressurized air introducing passage comprises suction port, gas-entered passageway that is opened on the Pneumatic suction fan shell and the annular air cavity that is communicated with gas-entered passageway.
Said some jet grooves are communicated with said annular air cavity.
The present invention's beneficial effect compared with prior art is: 1) Pneumatic suction fan of the present invention; The exhaust passage is accessible, and through the jet groove that is formed centrally the jet angle in some and the eddy flow chamber is set, makes pressurized air spray into the eddy flow chamber via the jet groove and form high speed cyclone; Said high speed cyclone is under the effect of jet angle; Form the active negative pressuren zone at edge and the passive negative pressuren zone at middle part in the eddy flow chamber, under the effect of active and passive negative pressuren zone, extracting gases rapidly and efficiently; 2) Pneumatic suction fan of the present invention, said jet groove shape can adopt the design of multiple nozzle, makes that the high speed cyclone rotational speed in eddy flow chamber is very fast, and the pressurized gas air consumption is controlled easily simultaneously; The shape of 3) Pneumatic suction fan of the present invention, its rate of air sucked in required quantity or the jet groove through adjusting said jet groove or jet groove change with respect to the jet angle at center, eddy flow chamber, thereby can adapt to different rate of air sucked in required requirements; 4) Pneumatic suction fan of the present invention, said eddy flow chamber somewhat larger in diameter is in the air-inlet cavity outlet diameter, and the diameter of said exhaust cavity is not less than the diameter in eddy flow chamber, thereby in unobstructed exhaust passage that broadens gradually of the inner formation of said Pneumatic suction fan.
Description of drawings
Fig. 1 be Pneumatic suction fan of the present invention the structure sectional view;
Fig. 2 is the structure sectional view along A-A line among Fig. 1 of Pneumatic suction fan of the present invention.
Embodiment
Below through concrete mode of execution and combine accompanying drawing that the present invention is explained further details.
The present invention relates to a kind of Pneumatic suction fan.Please refer to Fig. 1, this pneumatic extractor fan comprises shell 10, offers the air-inlet cavity 20, eddy flow chamber 30 and the exhaust cavity 40 that are interconnected in the said shell 10 from top to down successively.
The gas of said air-inlet cavity 20 1 end faces to being extracted, the other end then forms the outlet 22 that is communicated with eddy flow chamber 30.
Said eddy flow chamber 30 somewhat larger in diameter are in the diameter of air-inlet cavity 20 outlets 22, and the diameter of said exhaust cavity 40 is not less than the diameter in eddy flow chamber 30, thereby in unobstructed exhaust passage that broadens gradually of the inner formation of said Pneumatic suction fan.
Please on the shell 10 of said eddy flow chamber 30 correspondences, offer pressurized air and introduce passage simultaneously with reference to figure 2.Said pressurized air is introduced passage and is comprised the suction port 12 that is opened on the Pneumatic suction fan shell 10, the gas-entered passageway 14 that is communicated with suction port 12 and the annular air cavity 16 that is communicated with gas-entered passageway 14.Some jet grooves 18 are communicated with said annular air cavity 16.In the Pneumatic suction fan of the present invention, the shape of said some jet grooves 18 can adopt the design of multiple nozzle, makes that the high speed cyclone rotational speed in the eddy flow chamber 30 is very fast, and the pressurized gas air consumption is controlled easily simultaneously.
Be formed centrally the jet angle in each jet groove 18 and the eddy flow chamber 30.Pressurized air sprays into 30 backs, eddy flow chamber via suction port 12, gas-entered passageway 14, annular air cavity 16 and jet groove 18 and forms high speed cyclone.Said high speed cyclone under the effect of jet angle, the passive negative pressuren zone 35 at the active negative pressuren zone 32 at 30 formation edges and middle part in the eddy flow chamber.Said by extracting gases initiatively with the effect of passive negative pressuren zone 32,35 under by air-inlet cavity 20 suction, via eddy flow chamber 30 with after the high speed pressurized gas mixes, from exhaust cavity 40 discharges.
Pneumatic suction fan of the present invention; Air-inlet cavity 20, eddy flow chamber 30 and the exhaust cavity 40 common exhaust passages of forming are accessible; And through the jet groove 18 that is formed centrally the jet angle in some and the eddy flow chamber 30 is set; Make pressurized air spray into eddy flow chamber 30 via jet groove 18 and form high speed cyclone, said high speed cyclone is done the high-speed screw motion to exhaust cavity 40 directions simultaneously, and the fringe region of high speed cyclone one side in eddy flow chamber 30 is because of the very high formation active of airspeed negative pressuren zone 32; On the other hand because high speed cyclone drives the gas of the central region in the eddy flow chamber 30; Under action of centrifugal force, the gas of the central region in the eddy flow chamber 30 can move to fringe region, thereby forms passive negative pressuren zone 35 in central region.Extraneous gas is got into by the air-inlet cavity of exhaust passage 20 under the effect of these two negative pressuren zones, at eddy flow chamber 30 and exhaust cavity 40 with after high-speed gas mixes, after exhaust cavity 40 discharges, thus realization exhausting function rapidly and efficiently.
The diameter of quantity or the jet groove 18 of the rate of air sucked in required of said Pneumatic suction fan through adjusting said jet groove 18 or jet groove 18 change with respect to the jet angle at 30 centers, eddy flow chamber, thereby can adapt to different rate of air sucked in required requirements.
Above content is to combine concrete preferred implementation to the further explain that the present invention did, and can not assert that practical implementation of the present invention is confined to these explanations.For the those of ordinary skill of technical field under the present invention, under the prerequisite that does not break away from the present invention's design, can also make some simple deduction or replace, all should be regarded as belonging to protection scope of the present invention.
Claims (4)
1. Pneumatic suction fan; Comprise shell; Offer the air-inlet cavity, eddy flow chamber and the exhaust cavity that are interconnected in the said shell successively, offer pressurized air on the shell of said eddy flow chamber correspondence and introduce passage, said introducing passage is communicated with some jet grooves; Be formed centrally the jet angle in each jet groove and the eddy flow chamber; It is characterized in that: spray into the eddy flow chamber and form high speed cyclone via the jet groove that is used to adjust rate of air sucked in required as the pressurized air of the power source of bleeding, the shape of quantity or the jet groove of the rate of air sucked in required of said Pneumatic suction fan through adjusting said jet groove or jet groove change with respect to the jet angle at center, eddy flow chamber, and said high speed cyclone is under the effect of jet angle; Form the active negative pressuren zone at edge and the passive negative pressuren zone at middle part in the eddy flow chamber; Said by extracting gases initiatively and under the effect of passive negative pressuren zone by the air-inlet cavity suction,, discharge with after the high speed pressurized gas mixes via the eddy flow chamber from exhaust cavity.
2. Pneumatic suction fan according to claim 1 is characterized in that: said air-inlet cavity has the outlet that is communicated with the eddy flow chamber, and said eddy flow chamber somewhat larger in diameter is in the air-inlet cavity outlet diameter, and the diameter of said exhaust cavity is not less than the diameter in eddy flow chamber.
3. according to any described Pneumatic suction fan of claim 1-2, it is characterized in that: said pressurized air is introduced passage and is comprised suction port, gas-entered passageway that is opened on the Pneumatic suction fan shell and the annular air cavity that is communicated with gas-entered passageway.
4. Pneumatic suction fan according to claim 3 is characterized in that: said some jet grooves are communicated with said annular air cavity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910107601A CN101592169B (en) | 2009-05-22 | 2009-05-22 | Pneumatic suction fan |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910107601A CN101592169B (en) | 2009-05-22 | 2009-05-22 | Pneumatic suction fan |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101592169A CN101592169A (en) | 2009-12-02 |
| CN101592169B true CN101592169B (en) | 2012-10-17 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200910107601A Expired - Fee Related CN101592169B (en) | 2009-05-22 | 2009-05-22 | Pneumatic suction fan |
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| Country | Link |
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| CN (1) | CN101592169B (en) |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102135105B (en) * | 2010-01-27 | 2013-06-05 | 益阳市拓达电器有限公司 | Blade-free fan |
| DE112011105574T5 (en) * | 2011-08-30 | 2014-07-10 | Luoyang Northglass Technology Co., Ltd. | Air magnification device with magnification function of air flow |
| WO2014063443A1 (en) * | 2012-10-22 | 2014-05-01 | Zhang Yuliang | Self-cooled thermal work doing method |
| JP6520088B2 (en) * | 2014-12-08 | 2019-05-29 | 東洋製罐株式会社 | Container internal drying apparatus and container internal drying method |
| JP6533386B2 (en) * | 2014-12-25 | 2019-06-19 | 日東工器株式会社 | Air tool |
| US10492370B2 (en) * | 2017-09-20 | 2019-12-03 | Cnh Industrial America Llc | Debris removal system for an agricultural harvester with improved debris flow and related extractors |
| CN113958486B (en) * | 2021-08-27 | 2023-09-12 | 浙江镕达永能压缩机有限公司 | Vapor compressor and vapor ejector composite supercharging system and method thereof |
| CN113997204B (en) * | 2021-11-09 | 2022-10-18 | 中铁工程装备集团有限公司 | Jet device for jet flow back mixing abrasive |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4033714A (en) * | 1972-04-17 | 1977-07-05 | Radiation Limited | Gaseous fuel burners |
| US4721126A (en) * | 1985-09-09 | 1988-01-26 | Kiyoshi Horii | Method of generating spiral fluid flow and the device therefor |
| CN2106931U (en) * | 1991-12-01 | 1992-06-10 | 中国矿业大学 | Rotary jet screen aspirator |
-
2009
- 2009-05-22 CN CN200910107601A patent/CN101592169B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4033714A (en) * | 1972-04-17 | 1977-07-05 | Radiation Limited | Gaseous fuel burners |
| US4721126A (en) * | 1985-09-09 | 1988-01-26 | Kiyoshi Horii | Method of generating spiral fluid flow and the device therefor |
| CN2106931U (en) * | 1991-12-01 | 1992-06-10 | 中国矿业大学 | Rotary jet screen aspirator |
Non-Patent Citations (2)
| Title |
|---|
| JP昭63-126546A 1988.05.30 |
| JP特开平7-190443A 1995.07.28 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101592169A (en) | 2009-12-02 |
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Granted publication date: 20121017 |