CN100545537C - Inducer for low noise of train air-conditioning - Google Patents
Inducer for low noise of train air-conditioning Download PDFInfo
- Publication number
- CN100545537C CN100545537C CNB200710039119XA CN200710039119A CN100545537C CN 100545537 C CN100545537 C CN 100545537C CN B200710039119X A CNB200710039119X A CN B200710039119XA CN 200710039119 A CN200710039119 A CN 200710039119A CN 100545537 C CN100545537 C CN 100545537C
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- air
- plenum chamber
- blending bin
- persuader
- low noise
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Abstract
A kind of inducer for low noise of train air-conditioning belongs to the noise reduction technology field.The present invention includes: air outlet, blending bin, return air inlet, homogenating plate, plenum chamber, air inlet, nozzle or spout, air outlet is positioned at whole persuader top, blending bin is positioned at persuader inside below air outlet, the return air inlet opening is in the blending bin side, homogenating plate is positioned at plenum chamber inside, plenum chamber is positioned at persuader inside below blending bin, and link to each other with blending bin, air inlet is positioned at the persuader downside and links to each other with plenum chamber, be provided with dividing plate between blending bin and the plenum chamber, the surface of nozzle or spout dividing plate between blending bin and plenum chamber.That the present invention combines is simple in structure, compact dimensions and low noise effect, has satisfied train to little space, low noise demand.
Description
Technical field
What the present invention relates to is the device in a kind of noise reduction technology field, specifically is a kind of low noise of train air-conditioning persuader.
Background technology
Since the seventies, noise pollution is polluted as air pollution, water and is put into international public hazards, and world environments meeting in 1979 is just listed noise pollution in and is one of least endurable disaster of the mankind.The harm of noise on human body at first shows the harm to the sense of hearing, people's ear will be felt to feel bad in entering a noisy environment, even also can feel to have the sound after leaving, this phenomenon is called auditory fatigue, belong to temporary physiological phenomenon, the inner ear organ does not sustain damage, but if permanent living in this kind environment, it is hard of hearing to produce noise-induced, even deaf.Secondly, be in the excitement and inhibition disequilibrium that can cause people's cerebral cortex in the noise circumstance, cause conditioned reflex not normal, form dizziness, headache, nervous, absent minded, clinical being called " neurosis ".In addition, noise also can exert an influence to people's psychology, and particularly on the railroad train passenger vehicle, it is tired out that people own will feel by bus, if train noise is crossed the sense tired out that conference increases the people, irritated sense more need not be talked comfortableness.And, use persuader because it just in position near the window, is close to human body substantially, and its noise objective is most important to the use of the type air-conditioning system as train, therefore, air-conditioning noise is the important performance evaluation index of of train air-conditioning.
The induction air-conditioning system has the not available advantage of other air-conditioning system in air-conditioned passenger train (comprising double-deck air-conditioned passenger train) and high-speed railway passenger, persuader is the end equipment of induction air-conditioning system, being the important component part of induction air-conditioning system, also is the emphasis of research.As a kind of novel train carriage air-conditioning system, train carriage almost still is a blank out with persuader Research of Noise Reduction at home.
Find through literature search prior art, Chinese patent application number: CN02215332.2, denomination of invention is: air-conditioning ceiling mounting type persuader, this patent relates to a kind of invention of air-conditioning ceiling mounting type persuader, combine the air-flow distribution character of furred ceiling air diffuser and the energy-saving effect of hydrophily cooling, make the indoor air flow tissue reasonable, evenly the indoor temperature field, velocity field and concentration field provide comfortable indoor environment; Be applicable to the low-temperature air conditioner system,, can improve the temperature of sending into room air, avoided the problem of air-supply dewfall by inducing and mixing room air.But because this invention is at the air-conditioning persuader that is applied in the building, so can't realize application for the low noise air-conditioning persuader in the very strict train of space requirement.
Summary of the invention
The objective of the invention is to overcome traditional architecture with the defective that the air-conditioning persuader takes up room greatly, noise is high, a kind of low noise air-conditioning persuader at train is provided.Make the present invention simple in structure, production cost obviously reduces.
The present invention realizes with crossing following technical scheme, the present invention includes: air outlet, blending bin, return air inlet, homogenating plate, plenum chamber, air inlet, nozzle or spout.Air outlet is positioned at whole persuader top, blending bin is positioned at persuader inside below air outlet, the return air inlet opening is in the blending bin side, homogenating plate is positioned at plenum chamber inside, plenum chamber is positioned at persuader inside below blending bin, and links to each other with blending bin, and air inlet is positioned at the persuader downside and links to each other with plenum chamber, be provided with dividing plate between blending bin and the plenum chamber, the surface of nozzle or spout dividing plate between blending bin and plenum chamber.
Should adopt full air induction air-conditioning system on the train, required refrigeration duty is all born by air (wind) in the car.This persuader is not with the secondary cooling coil, and actual is a special air-supply arrangement, can induce the room air of some, reaches the effect that increases air output and reduce supply air temperature difference.Entered in the persuader of air-conditioned room by blower fan through the air (wind) that focuses on, persuader is the local facility (or being called end equipment) that is divided in each compartment.Wind enters the plenum chamber of persuader by air inlet, through nozzle or spout to penetrate at a high speed.Owing to spray the ejector action of air-flow at a high speed, in persuader, cause negative pressure, room air (be return air, be called secondary wind again) is inhaled into persuader, and primary and secondary air is mixed the back in blending bin and is sent by the persuader air outlet.Give, return air inlet adopts the strip air port, to increase the air port area as far as possible, obtains bigger induction ratio and lower noise.The width of control return air inlet is below 90mm, in order to avoid the short circuit phenomenon of a wind of the excessive generation of width is directly sprayed by return air inlet after promptly a wind is sprayed by nozzle or spout.
The present invention adopts the spout form reducing cost, direct opening on the dividing plate between blending bin and the plenum chamber, and the arrangement mode of spout adopts double.Be provided with homogenating plate in the plenum chamber, make plenum chamber can with wind average distribute to each spout, reduce system noise.It is little that the present invention takies the train space, and the 70dB of actual measurement noise ratio Ministry of Railways regulation is low more than 20%.The present invention is simple in structure, and therefore production cost reduces more than 1/4th.
Description of drawings
Fig. 1 structural plan of the present invention schematic diagram
Fig. 2 structure elevational schematic view of the present invention
Fig. 3 structure top cross sectional view of the present invention
The specific embodiment
Below embodiments of the invention are elaborated: present embodiment has provided detailed embodiment and process being to implement under the prerequisite with the technical solution of the present invention, but protection scope of the present invention is not limited to following embodiment.
As shown in Figure 1-Figure 3, present embodiment comprises: air outlet 1, blending bin 2, return air inlet 3, homogenating plate 4, plenum chamber 5, air inlet 6, nozzle or spout 7.
Send into the air inlet 6 that is positioned at the persuader downside and links to each other by blower fan through the air (wind) that focuses on plenum chamber 5, be positioned at persuader inside below blending bin 2 and the dynamic pressure that wind is produced of coupled plenum chamber 5 can be converted into static pressure to greatest extent, and give each nozzle or spout 7 with its mean allocation, the homogenating plate 4 that is positioned at plenum chamber 5 inside simultaneously with wind average distribute to each nozzle or spout 7, air-flow is from nozzle that is positioned at blending bin 2 and plenum chamber 5 baffle surface or spout 7 ejection at a high speed, in the inner negative pressure that forms of persuader, under suction function, be positioned at persuader inside the blending bin below the air outlet 12 make wind with by opening after the secondary wind that the return air inlet 3 of blending bin 2 sides sucks fully mixes, send via the air outlet 1 that is positioned at whole persuader top.
When the present embodiment persuader uses, be installed on air-conditioned passenger train vehicle window bottom, and between two relative seats, so the size of persuader has been subjected to strict restriction, the air blow and return mode of persuader send side to return formula on being simultaneously.
Present embodiment persuader size (length * wide * height) is 500mm * 80mm * 500mm.
Wind air inlet 6 calibers of present embodiment are decided to be 130mm * 70mm.Under this caliber, design air flow down in the pipe wind speed be 5.7m/s, this wind speed state next time noise that wind produces less than 27dB.
Under the prerequisite that satisfies the compartment space requirement, the sectional area of plenum chamber 5 is big as far as possible with respect to wind air inlet 6 calibers, and the height of plenum chamber 5 also will improve as far as possible, and the dynamic pressure of such wind could be converted into static pressure to greatest extent.Present embodiment plenum chamber 5 sizes (length * wide * height) are: 500mm * 80mm * 250mm.
Present embodiment installs homogenating plate 4 additional at 180mm place, distance plenum chamber 5 bottom surface, and homogenating plate 4 is designed to orifice plate.The circular hole that to open 5 * 35 diameters on the orifice plate be 10mm, the length of orifice plate and width and plenum chamber 5 are measure-alike.
Present embodiment adopts double spout 7, and spout 7 adopts circular hole, and aperture 22.5mm amounts to 16 spouts.
The height of blending bin 2 should be big slightly, generally is controlled within the scope of 250mm-300mm, can make air-flow steady like this, and present embodiment blending bin 2 sizes (length * wide * height) are 500mm * 80mm * 250mm.
Present embodiment is determined air port 3 areas by total blast volume and wind speed, is specially 460mm * 80mm, send, return air inlet adopts the strip air port, is specially 480mm * 60mm.
Claims (8)
1, a kind of inducer for low noise of train air-conditioning, it is characterized in that: comprising: air outlet, blending bin, return air inlet, homogenating plate, plenum chamber, air inlet, nozzle or spout, air outlet is positioned at whole persuader top, blending bin is positioned at persuader inside below air outlet, the return air inlet opening is in the blending bin side, homogenating plate is positioned at plenum chamber inside, plenum chamber is positioned at persuader inside below blending bin, and link to each other with blending bin, air inlet is positioned at the persuader downside and links to each other with plenum chamber, be provided with dividing plate between blending bin and the plenum chamber, the surface of nozzle or spout dividing plate between blending bin and plenum chamber;
Described plenum chamber, its length * wide * height is of a size of 500mm * 80mm * 250mm.
2, this inducer for low noise of train air-conditioning according to claim 1 is characterized in that, described persuader, and its length * wide * height is of a size of 500mm * 80mm * 500mm.
3, this inducer for low noise of train air-conditioning according to claim 1 is characterized in that, described homogenating plate is located at apart from 180mm place, plenum chamber bottom surface, and homogenating plate is an orifice plate.
4, this inducer for low noise of train air-conditioning according to claim 3 is characterized in that, the circular hole that it is 10mm that described orifice plate is provided with 5 * 35 diameters, and the length of orifice plate is identical with the length and the width dimensions of width and plenum chamber.
5, this inducer for low noise of train air-conditioning according to claim 1 is characterized in that, described spout is double spout, and spout adopts circular hole, and the aperture is 22.5mm, amounts to 16 spouts.
6, this inducer for low noise of train air-conditioning according to claim 1 is characterized in that, described blending bin, and its length * wide * height is of a size of 500mm * 80mm * 250mm.
7, this inducer for low noise of train air-conditioning according to claim 1 is characterized in that, described return air inlet is the strip air port, and it is of a size of 460mm * 80mm.
8, this inducer for low noise of train air-conditioning according to claim 1 is characterized in that, described air outlet is the strip air port, and it is of a size of 480mm * 60mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB200710039119XA CN100545537C (en) | 2007-04-05 | 2007-04-05 | Inducer for low noise of train air-conditioning |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB200710039119XA CN100545537C (en) | 2007-04-05 | 2007-04-05 | Inducer for low noise of train air-conditioning |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101033883A CN101033883A (en) | 2007-09-12 |
| CN100545537C true CN100545537C (en) | 2009-09-30 |
Family
ID=38730550
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB200710039119XA Expired - Fee Related CN100545537C (en) | 2007-04-05 | 2007-04-05 | Inducer for low noise of train air-conditioning |
Country Status (1)
| Country | Link |
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| CN (1) | CN100545537C (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103245043B (en) * | 2013-05-14 | 2016-09-07 | 杭州国电能源环境设计研究院有限公司 | Variable air rate temperature air blowing inlet device |
| CN105546778B (en) * | 2015-12-20 | 2018-05-04 | 西安建筑科技大学 | A kind of plenum chamber for realizing balanced ventilation |
| CN105465984B (en) * | 2015-12-29 | 2018-03-30 | 美的集团武汉制冷设备有限公司 | Turbulence plate and air-conditioning |
| CN105532314B (en) * | 2016-01-11 | 2019-03-19 | 中国农业科学院作物科学研究所 | A kind of the low concentration of carbon dioxide incubator and control method of basic scientific research |
| CN107036225A (en) * | 2016-02-03 | 2017-08-11 | 佛瑞德（郑州）工业有限公司 | Ondol persuader |
| CN107490172A (en) * | 2017-09-05 | 2017-12-19 | 中环智创（北京）科技有限公司 | Low noise air-supply injector |
-
2007
- 2007-04-05 CN CNB200710039119XA patent/CN100545537C/en not_active Expired - Fee Related
Non-Patent Citations (2)
| Title |
|---|
| 列车用诱导空调系统特性的优化设计. 胡松涛，曹志坤，裴念强，王刚.山东制冷空调. 2005 |
| 列车用诱导空调系统特性的优化设计. 胡松涛，曹志坤，裴念强，王刚.山东制冷空调. 2005 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101033883A (en) | 2007-09-12 |
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Granted publication date: 20090930 Termination date: 20120405 |