CN105352101B - Indoor ventilator unit based on Coanda effect - Google Patents
Indoor ventilator unit based on Coanda effect Download PDFInfo
- Publication number
- CN105352101B CN105352101B CN201510905580.3A CN201510905580A CN105352101B CN 105352101 B CN105352101 B CN 105352101B CN 201510905580 A CN201510905580 A CN 201510905580A CN 105352101 B CN105352101 B CN 105352101B
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- CN
- China
- Prior art keywords
- air
- coanda
- aerofoil profile
- profile piece
- plate
- 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.)
- Expired - Fee Related
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F7/00—Ventilation
- F24F7/007—Ventilation with forced flow
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
- F24F13/24—Means for preventing or suppressing noise
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
- F24F13/24—Means for preventing or suppressing noise
- F24F2013/247—Active noise-suppression
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Jet Pumps And Other Pumps (AREA)
- Air-Flow Control Members (AREA)
Abstract
Based on the indoor ventilator unit of Coanda effect, including Coanda aerofoil profile piece, arc cover plate, bottom plate, side plate, enter air duct, annular frame and frequency conversion fan.Coanda aerofoil profile piece, arc cover plate and side plate are arranged on bottom plate, arc cover plate, which is arranged on Coanda aerofoil profile piece, has the upper end of smooth surface arc flow guiding head, two blocks of side plates are separately mounted to the both sides of Coanda aerofoil profile piece and arc cover plate, air-inlet cavity is formed by Coanda aerofoil profile piece, arc cover plate, side plate and bottom plate, bar shaped air outlet is provided between the arc flow guiding head and arc cover plate of Coanda aerofoil profile piece；Enter air duct on bottom plate, and communicated with air-inlet cavity, the setting height(from bottom) for entering air duct is less than bar shaped air outlet, to reduce air-flow in noise caused by air-inlet cavity outflow；Annular frame is arranged on into the bore of air duct one end, and frequency conversion fan is located at into the bore of air duct, and is fixed by screws on annular frame.
Description
Technical field
The present invention relates to ventilation unit, the indoor ventilator unit of Coanda effect is based particularly on.
Background technology
Indoor ventilator unit is by the means such as ventilation dilution or ventilation exclusion, controlAir pollutantsPropagation and danger
Evil, realize a kind of architectural environment control technology of indoor air environment quality assurance.Although room ventilation dress now on the market
Put that species is various, but is all to be aerated ventilation by the mode of initial velocity jet mostly, it is small to the range of disturbance of room air,
Scavenging efficiency is relatively low, and the comfortable sexual experience of people is poor, and blade rotates shear flow and produces noise, influences usage experience.
The content of the invention
The purpose of the present invention is overcome the deficiencies in the prior art, and provides a kind of fresh air induction room based on Coanda effect
Interior ventilation unit.It has not only taken into account the ventilation purposes of the blowing feeling that conventional fan band gives people and common aeration device, also solves
Conventional fan blade rotates the problem of producing noise and penetrating flowing out stream comfort difference.
The technical scheme is that：Based on the indoor ventilator unit of Coanda effect, including Coanda aerofoil profile piece, arc
Cover plate, bottom plate, side plate, enter air duct, annular frame and frequency conversion fan.
One end of Coanda aerofoil profile piece is the arc flow guiding head with smooth surface.
Metal gauze is installed on annular frame.
Coanda aerofoil profile piece, arc cover plate and side plate are arranged on bottom plate, and arc cover plate is arranged on Coanda aerofoil profile piece tool
There is the upper end of smooth surface arc flow guiding head, two blocks of side plates are separately mounted to the both sides of Coanda aerofoil profile piece and arc cover plate, by
Coanda aerofoil profile piece, arc cover plate, side plate and bottom plate composition air-inlet cavity, arc flow guiding head and the arc cover plate of Coanda aerofoil profile piece
Between be provided with bar shaped air outlet；Enter air duct on bottom plate, and communicated with air-inlet cavity, the setting height(from bottom) for entering air duct is less than bar shaped
Air outlet, to reduce air-flow in noise caused by air-inlet cavity outflow；Annular frame is arranged on into the bore of air duct one end, is become
Frequency blower fan is located at into the bore of air duct, and is fixed by screws on annular frame.
Further technical scheme is the present invention：The nozzle for entering air duct on bottom plate is provided with air heater, passes through sky
Air-flow of the hot-air heater heating into air-inlet cavity.
In use, by the wall of the installation of the indoor ventilator unit based on Coanda effect indoors, enter air duct and outdoor
Communicate, start frequency conversion fan, outdoor fresh air is induced into interior.
Further technical scheme is the present invention：Two indoor ventilator units based on Coanda effect are passed through into connection
Plate is linked together, and forms a combined indoor ventilator unit, and connecting plate is arranged on by screw and is based on Coanda effect
Indoor ventilator unit bottom plate on, the arc cover plate of the indoor ventilator unit based on Coanda effect is mutually corresponding, in bottom plate
It is upper that outer cover is provided with by screw, cuboid air-inlet cavity is formed between the inwall and bottom plate of outer cover, two are provided with outer cover
For installing the air intake frame of filter screen, air intake frame is corresponding with entering air duct respectively, and filter screen is arranged on air intake inframe.
In use, start frequency conversion fan, frequency conversion fan by room air from air intake frame be pumped into cuboid air-inlet cavity, then from
Enter air duct and enter air-inlet cavity, and flowed out from bar shaped air outlet, the air after outflow is bent by Coanda aerofoil profile piece outer wall Coanda
The water conservancy diversion in face drives Interior Space circulation, so as to realize indoor a wide range of organized airflow circulating.
The present invention has the following advantages that compared with prior art：
1st, fresh air requirement is met.Indoor ventilator unit patch wall installation based on Coanda effect, is lured using outdoor fresh air
Lead, air quantity can be determined according to the resh air requirement demand in specific function room, frequency conversion fan can realize that air quantity is adjustable.
2nd, energy consumption is small, noise is low.Indoor ventilator unit based on Coanda effect is induced using part fresh air, i.e., using small
Flow induces stream, and inductivity is up to 10~15 times, and this air quantity for passing through blower fan can significantly reduce, will to the power of blower fan
Asking can also substantially reduce；Induced using air outlet and Coanda curved surface, it is common big to realize that the induction air-out of low discharge small-power produces
The air-out effect of power fan, so as to reduce power consumption more than 30%；The smooth surface of arc flow guiding head can be reduced due to air-flow
Run into sharp object and produce sinuous flow noise.
3rd, air-flow is soft, comfortableness is good.Air is flowed out by air outlet, along drive surrounding gas while Coanda non-plane motion
Body moves, and air-flow penetrates that flowing out stream is softer than simple, increases the scope of circulating internal air, indoor environment is more easypro
It is suitable.
4th, good appearance, safe to use.Coanda aerofoil profile piece is curved-surface structure, novel appearance fashion；Built in blower fan, avoid
Because of caused by the high-speed rotation of blade personal injury.
5th, two indoor ventilator units based on Coanda effect are linked together by connecting plate, forms a combination
The indoor ventilator unit of type, it is not necessary to which outdoor fresh air is induced, and room air is pumped into cuboid from air intake frame and entered by frequency conversion fan
Wind chamber, then enter air-inlet cavity from air duct is entered, and flowed out from bar shaped air outlet, the air after outflow is by Coanda aerofoil profile piece outer wall
The water conservancy diversion of Coanda curved surface drives Interior Space circulation, so as to realize indoor a wide range of organized airflow circulating.
Below in conjunction with figure, the invention will be further described with embodiment.
Brief description of the drawings
Accompanying drawing 1 is the structural representation of the present invention；
Accompanying drawing 2 is the A-A sectional views in accompanying drawing 1；
Accompanying drawing 3 is the structural representation of annular frame；
Accompanying drawing 4 is the B-B sectional views in accompanying drawing 3；
Accompanying drawing 5 is combined indoor ventilator unit structural representation.
Embodiment
Embodiment one：Based on the indoor ventilator unit of Coanda effect, including Coanda aerofoil profile piece 1, arc cover plate 2, bottom
Plate 3, side plate 4, enter air duct 5, annular frame 6 and frequency conversion fan 7.
One end of Coanda aerofoil profile piece 1 is the arc flow guiding head 1-1 with smooth surface.
Metal gauze 6-1 is installed on annular frame 6.
Coanda aerofoil profile piece 1, arc cover plate 2 and side plate 4 are arranged on bottom plate 3, and arc cover plate 2 is arranged on Coanda aerofoil profile
Piece 1 has smooth surface arc flow guiding head 1-1 upper end, and two blocks of side plates 4 are separately mounted to Coanda aerofoil profile piece 1 and arc cover plate
2 both sides, air-inlet cavity 10, the arc of Coanda aerofoil profile piece 1 are formed by Coanda aerofoil profile piece 1, arc cover plate 2, side plate 4 and bottom plate 3
Bar shaped air outlet 9 is provided between shape flow guiding head 1-1 and arc cover plate 2.Enter air duct 5 on the bottom plate 3, and with the phase of air-inlet cavity 10
Logical, the setting height(from bottom) for entering air duct 5 is less than bar shaped air outlet 9, flows out caused noise in air-inlet cavity 10 to reduce air-flow.Annular
Framework 6 is arranged on into the bore of the one end of air duct 5, and frequency conversion fan 7 is located at into the bore of air duct 5, and is fixed by screws in
On annular frame 6.
Embodiment two：The present embodiment includes all technical characteristic in embodiment one, and the difference with embodiment one is, the bottom of at
The nozzle for entering air duct 5 on plate 3 is provided with air heater 8, the air-flow by the heating of air heater 8 into air-inlet cavity 10.
Embodiment three, two indoor ventilator units based on Coanda effect are linked together by connecting plate 14, group
The indoor ventilator unit combined into one, connecting plate 14 are arranged on the indoor ventilator unit based on Coanda effect by screw
Bottom plate 3 on, the arc cover plate 2 of the indoor ventilator unit based on Coanda effect is mutually corresponding, is pacified on bottom plate 3 by screw
Equipped with outer cover 11, cuboid air-inlet cavity 15 is formed between the inwall and bottom plate 3 of outer cover 11, is used on outer cover 11 provided with two
The air intake frame 12 of filter screen 13 is installed, air intake frame 12 is corresponding with entering air duct 5 respectively, and filter screen 13 is arranged in air intake frame 12.
Claims (2)
1. based on the indoor ventilator unit of Coanda effect, it is characterized in that：Two room ventilations based on Coanda effect are filled
Put and linked together by connecting plate, form a combined indoor ventilator unit, connecting plate is arranged on by screw and is based on
On the bottom plate of the indoor ventilator unit of Coanda effect, the arc cover plate of the indoor ventilator unit based on Coanda effect is mutually right
Should, outer cover is provided with by screw on bottom plate, cuboid air-inlet cavity is formed between the inwall and bottom plate of outer cover, on outer cover
Provided with two air intake frames for being used to install filter screen, air intake frame is corresponding with entering air duct respectively, and filter screen is arranged on air intake inframe；
The described indoor ventilator unit based on Coanda effect includes Coanda aerofoil profile piece, arc cover plate, bottom plate, side plate, entered
Air duct, annular frame and frequency conversion fan；
One end of Coanda aerofoil profile piece is the arc flow guiding head with smooth surface；
Metal gauze is installed on annular frame；
Coanda aerofoil profile piece, arc cover plate and side plate are arranged on bottom plate, and arc cover plate is arranged on Coanda aerofoil profile piece with flat
The upper end of sliding curved surface arc flow guiding head, two blocks of side plates are separately mounted to the both sides of Coanda aerofoil profile piece and arc cover plate, by Koln
Air-inlet cavity is formed up to aerofoil profile piece, arc cover plate, side plate and bottom plate, between the arc flow guiding head and arc cover plate of Coanda aerofoil profile piece
Provided with bar shaped air outlet；Enter air duct on bottom plate, and communicated with air-inlet cavity, the setting height(from bottom) for entering air duct is less than bar shaped air-out
Mouthful, to reduce air-flow in noise caused by air-inlet cavity outflow；Annular frame is arranged on into the bore of air duct one end, frequency conversion wind
Machine is located at into the bore of air duct, and is fixed by screws on annular frame.
2. the indoor ventilator unit as claimed in claim 1 based on Coanda effect, it is characterized in that：Enter air duct on bottom plate
Nozzle be provided with air heater, by air heater heating into air-inlet cavity air-flow.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510905580.3A CN105352101B (en) | 2015-12-10 | 2015-12-10 | Indoor ventilator unit based on Coanda effect |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510905580.3A CN105352101B (en) | 2015-12-10 | 2015-12-10 | Indoor ventilator unit based on Coanda effect |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105352101A CN105352101A (en) | 2016-02-24 |
| CN105352101B true CN105352101B (en) | 2018-01-02 |
Family
ID=55328120
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510905580.3A Expired - Fee Related CN105352101B (en) | 2015-12-10 | 2015-12-10 | Indoor ventilator unit based on Coanda effect |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105352101B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105571041B (en) * | 2016-02-26 | 2018-09-14 | 福建新大陆电脑股份有限公司 | A kind of doublet type confined space extraneous gas barrier equipment |
| CN105737317B (en) * | 2016-02-26 | 2018-09-14 | 福建新大陆电脑股份有限公司 | A kind of extraneous gas barrier equipment of the confined space of more air guide holes |
| CN106765785B (en) * | 2017-01-19 | 2022-05-03 | 南华大学 | Air-conditioning plant roof air film cooling device based on coanda effect |
| CN108591135A (en) * | 2018-06-11 | 2018-09-28 | 南华大学 | Tapered air persuader |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000130808A (en) * | 1998-08-21 | 2000-05-12 | Daikin Ind Ltd | Air suction/air diffusion apparatus |
| CN102200022A (en) * | 2011-04-20 | 2011-09-28 | 杭州行者工业产品设计事务所 | Tunnel ventilation system |
| CN102644997A (en) * | 2011-10-11 | 2012-08-22 | 漆一伟 | Air exchanger |
| GB2511757A (en) * | 2013-03-11 | 2014-09-17 | Dyson Technology Ltd | A fan assembly |
| CN203962432U (en) * | 2014-06-30 | 2014-11-26 | 广东美的环境电器制造有限公司 | Fan |
| CN104220282A (en) * | 2012-03-28 | 2014-12-17 | 丰田自动车株式会社 | Vehicle air-conditioning device |
| CN204061244U (en) * | 2014-08-28 | 2014-12-31 | 广东美的环境电器制造有限公司 | Fan |
| CN205227662U (en) * | 2015-12-10 | 2016-05-11 | 南华大学 | Indoor ventilation unit based on koln reaches effect |
-
2015
- 2015-12-10 CN CN201510905580.3A patent/CN105352101B/en not_active Expired - Fee Related
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000130808A (en) * | 1998-08-21 | 2000-05-12 | Daikin Ind Ltd | Air suction/air diffusion apparatus |
| CN102200022A (en) * | 2011-04-20 | 2011-09-28 | 杭州行者工业产品设计事务所 | Tunnel ventilation system |
| CN102644997A (en) * | 2011-10-11 | 2012-08-22 | 漆一伟 | Air exchanger |
| CN104220282A (en) * | 2012-03-28 | 2014-12-17 | 丰田自动车株式会社 | Vehicle air-conditioning device |
| GB2511757A (en) * | 2013-03-11 | 2014-09-17 | Dyson Technology Ltd | A fan assembly |
| CN203962432U (en) * | 2014-06-30 | 2014-11-26 | 广东美的环境电器制造有限公司 | Fan |
| CN204061244U (en) * | 2014-08-28 | 2014-12-31 | 广东美的环境电器制造有限公司 | Fan |
| CN205227662U (en) * | 2015-12-10 | 2016-05-11 | 南华大学 | Indoor ventilation unit based on koln reaches effect |
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| Publication number | Publication date |
|---|---|
| CN105352101A (en) | 2016-02-24 |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180102 Termination date: 20211210 |
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| CF01 | Termination of patent right due to non-payment of annual fee |