CN105509274A - Spray nozzle and induction type air regulating equipment - Google Patents
Spray nozzle and induction type air regulating equipment Download PDFInfo
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- CN105509274A CN105509274A CN201410620389.XA CN201410620389A CN105509274A CN 105509274 A CN105509274 A CN 105509274A CN 201410620389 A CN201410620389 A CN 201410620389A CN 105509274 A CN105509274 A CN 105509274A
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Abstract
The invention discloses a spray nozzle. The spray nozzle comprises an inner cavity, wherein a radial section of the inner cavity is in the shape of a polygon which is formed by combining a plurality of sides with the same structures; each side is provided with a first distance and a second distance to the vertical axis of the spray nozzle; and the first distance is not equal to the second distance. The invention further provides induction type air regulating equipment applying the spray nozzle. After the spray nozzle provided by the invention is applied to the induction type air regulating equipment, regenerated noises of the induction type air regulating equipment within unit time can be reduced under the same working condition (namely air speed, flowing through the spray nozzle, of air-feeding air flow being same), and anti-condensing and anti-dewing capacity of the spray nozzle are improved.
Description
Technical field
The invention belongs to air regulator noise elimination technique field, be specifically related to a kind of nozzle of induction air conditioning equipment.
Background technology
Induction air conditioning equipment is the one in numerous air-conditioning sort product, multiplexly requires high environment in comfortableness, as office, meeting room, book reading room, cinema, high-grade hotel.Adopts compared with fan coil units+air outlet combine with current a lot of air-conditioning equipment, the induction air conditioning equipment of employing nozzle utilizes air induction principle transmission airflow, and without the need to configuring blower fan, motor, therefore noise is lower.
With reference to figure 1 and Fig. 2, the new wind that indoor air-conditioning system needs by induction air conditioning equipment is sent to the static pressure chamber of induction air adjuster inside by primary air piping, this new wind ensures that air conditioning applications place health of people is breathed necessary, or through the First air of AHU process.New wind is sent with higher wind speed through nozzle 1 again, higher speed air-flow produces local decompression at persuader inner chamber, the partial air (be called as Secondary Air) of indoor close to persuader return air inlet 2 surface is sucked, is induced in persuader, the air be induced, sucked flows through heat exchanger and carries out heat exchange, is namely cooled (summer condition) or is heated (winter condition).After Secondary Air mixes in persuader hybrid chamber with First air, send into indoor by slot outlet 3.
The primary performance requirement of induction air conditioning equipment is low noise, and the noise of unit product needs lower than 39db (A) under normal circumstances.Under the prerequisite meeting this requirement, the refrigeration of unit same specification product (refer to same size or appearance and size, same First air air quantity and First air EAT, provide same water side chilled water or hot water Inlet and outlet water temperature and discharge), heating capacity size becomes the leading indicator weighing properties of product quality, is also the primary concern of economic indicator.
The key technical indexes such as unit refrigeration, heating capacity, pressure loss size, regenerated noise value of induction air conditioning equipment depends on the induction ratio of induction type air-conditioning equipment, the i.e. ratio of secondary air flow and primary air flow to a great extent.Under the condition that the wind speed of First air air-supply airflow passes nozzle is identical, the regenerated noise value produced while obtaining same induction ratio, the size of the pressure loss are all by relevant with the factor such as the dew point of the rate of change of adopted nozzle material, nozzle chamber section configuration and section, nozzle (i.e. condensation-proof condense ability).
With reference to figure 3 and Fig. 4, the nozzle of prior art adopts metal material, is provided with through hole, and form the inner chamber that feed general mood stream flows through, inner chamber is cylindric or circular cone column.Although the resistance of air-supply air-flow is less, but the break-in of air-flow can not be there is, refraction and reflection or local eddy currents flowing, and this air-flow molecule laterally or refraction break-in, reflection or local eddy currents motion be required for reducing noise, therefore prior art level of noise is higher.
Summary of the invention
The object of the present invention is to provide a kind of new nozzle arrangements, wind can be reduced and make an uproar, and promote condensation-proof condensation ability.
For achieving the above object, the invention provides a kind of nozzle, comprise inner chamber, inner chamber radial section is polygon, and this polygon is that many mutually isostructural limits combine, wherein, every bar limit is provided with the first Distance geometry second distance to the nozzle longitudinal axis, and the first distance is unequal with second distance.
Preferably, while be set to arc, the summit of arc and the distance of the nozzle longitudinal axis are the first distance, and the distance of the tie point between arc and the nozzle longitudinal axis is second distance, and the first distance is greater than second distance.
Another preferred embodiment in, while be set to straight line, the vertical range of straight line and the nozzle longitudinal axis is the first distance, and the distance of the tie point between straight line and the nozzle longitudinal axis is second distance, and the first distance is less than second distance.
Preferably, surface of internal cavity comprises at least one damping piece.
Further, damping piece is hemispherical projection.
Preferably, damping piece is at least two, and has gap between damping piece, and gap is mutually through.
Preferably, nozzle is quality of rubber materials.
The present invention also provides a kind of induction air adjuster, comprises nozzle, and nozzle chamber radial section is polygon, polygon is combined by many mutually isostructural limits, wherein, every bar limit is provided with the first Distance geometry second distance to the nozzle longitudinal axis, and the first distance is unequal with second distance.
Preferably, while be set to arc, the summit of arc and the distance of the nozzle longitudinal axis are the first distance, and the distance of the tie point between arc and the nozzle longitudinal axis is second distance.
Preferably, nozzle chamber surface comprises at least one damping piece.
Compared with prior art, after nozzle provided by the invention is applied to induction air conditioning equipment, the regenerated noise that can reduce unit induction air conditioning equipment under identical working condition and the condensation-proof condensation ability improving nozzle.
Accompanying drawing explanation
Fig. 1 is a kind of air-supply schematic diagram of induction air conditioning equipment;
Fig. 2 is the air-supply schematic diagram of another induction air conditioning equipment;
Fig. 3 is the top view of existing nozzle;
Fig. 4 is the sectional view of Fig. 3 along E-E direction;
Fig. 5 is the structural representation of nozzle one embodiment of the present invention;
Fig. 6 is the top view of nozzle one embodiment of the present invention;
Fig. 7 is the sectional view of Fig. 6 along D-D direction;
Fig. 8 is the profilograph of the another embodiment of nozzle of the present invention;
Fig. 9 is the structural representation of the projection of nozzle one embodiment of the present invention.
Detailed description of the invention
Describe the present invention below with reference to detailed description of the invention shown in the drawings.But these embodiments do not limit the present invention, the structure that those of ordinary skill in the art makes according to these embodiments, method or conversion functionally are all included in protection scope of the present invention.
Nozzle of the present invention is nonmetallic elastic material, and be preferably base material with rubber, unit weight is not more than 900kg/m
3.Rubber has certain elasticity, makes shaping nozzle and has stronger wear-resistant, shock resistance, resist oxygen aging, water resistance, and be easy to processing, can meet the requirement of nozzle effective flow area value homogeneity that same induction type air-conditioning equipment is installed.Nonmetallic material thermal conductivity factor is little, and make nozzle have superior condensation-proof condensation feature, especially when induction type air-conditioning equipment is in summer condition, effect is more obvious.
With reference to figure 5 and Fig. 7, nozzle 1 inner chamber is tapered configuration, and namely long-pending air opening end 20 radial section that is greater than of air intake vent end 10 radial section amasss.
Inner chamber radial section is polygon, and this polygon is that many mutually isostructural limits combine, and wherein, every bar limit is provided with the first Distance geometry second distance to the nozzle longitudinal axis, and the first distance is unequal with second distance.
Advantageously, by this structure, during air-supply airflow passes, except the flowing along nozzle-axis direction except, air-flow molecule also reflect producing with sagittal plane upper part break-in, reflects and local eddy currents is moved, change airflow direction.
And, the polygonized structure of this symmetry makes air-supply air-flow fluid kinetic property of all directions on nozzle radial section convergent, namely the VELOCITY DISTRIBUTION of all directions is identical with variation characteristic, and the change that air-supply air-flow molecular flow occurs in nozzle chamber surface process is tangential, refraction and reflection characteristic etc. have homoplasy.
In one embodiment, variable cross-section regular polygon limit number > 4, produces the refraction of air-supply air-flow particle, reflection break-in and local eddy currents to obtain suitable probability, thus reaches the expection object of reduction and absorption of noise.
Preferred limit number is 5 or 6.
Preferably, while be set to arc, the summit of arc and the distance of the nozzle longitudinal axis are the first distance, and the distance of the tie point between arc and the nozzle longitudinal axis is second distance, and the first distance is greater than second distance.
Concrete, with reference to figure 6, surface of internal cavity comprises more than one parabolic surface, makes inner chamber radial section present the shape being similar to flower.The number of parabolic surface is not limited to diagram quantity.
Another preferred embodiment in, while be set to straight line, the vertical range of straight line and the nozzle longitudinal axis is the first distance, and the distance of the tie point between straight line and the nozzle longitudinal axis is second distance, and the first distance is less than second distance.
Advantageously, by this structure, ensure that in the process of air-supply airflow passes nozzle, certain refraction, reflection and local eddy currents occur air-flow particle, namely produce a noise elimination absorbing and the contained acoustic energy of air-supply air-flow is converted into frictional heat energy thus the condition of reducing noise.Meanwhile, the pressure loss produced in air-supply airflow passes nozzle process is made to drop to minimum.
In one embodiment, nozzle chamber surface has the damping piece of vibration damping, sound absorption.Concrete, nozzle chamber surface comprises at least one micro-dimension projection 31.Projection 31 is not limited to the quantity of present embodiment, can reach in the scope increasing the object that air-flow and nozzle chamber face rub and can arrange varying number.
When projection 31 is two or more, have preset distance between projection 31, to make nozzle chamber surface form a large amount of microvoids, these spaces are mutually through.During airflow passes nozzle chamber surface, air-supply air-flow and nozzle chamber surface porosity produce and rub and damping action, and part acoustic energy is converted into heat energy.The contact of local eddy currents air-flow and projection 31 and friction enhance this motion, thus enhance the effect reducing noise.
With reference to figure 8 and Fig. 9, nozzle chamber surface arranges the semi-spherical shape projection 31 of micro-dimension.
Projection 31 also can be the column structure with circle or polygonal cross-section, or acicular texture, or the band shape in palisade-like lengthwise, or is the multi-plane structure (not shown) of diamond sample.
The bearing of trend of projection 31 is preferably suitably perpendicular to the direction that air-flow enters.
The arrangement mode preference rule of projection 31, equidistant.
Said nozzle surface of internal cavity micro-dimension projection 31 is a kind of resistance noise reduction structure in essence, has comparatively significantly effect, and have superior condensation-proof dewing function for the noise reducing middle and high frequency.
Nozzle of the present invention and prior art metallic nozzle are carried out noise figure detection, and condition is as follows:
Induction type air-conditioning equipment configures installation 134 nozzles altogether, and the equivalent circulation diameter of nozzle is 6mm.Its valid circulation area is 0.00377m
2.The position of noise measuring point is: from air outlet apart from being 1m, it is 24 points that detection is counted, along the even value of induction type air-conditioning equipment air outlet length direction.In table 1, noise figure is 24 mean values detecting noise figure, and noise figure unit is sound pressure level.In noise detecting process, its ambient noise is not more than 25db (A).From table 1, nozzle noise figure of the present invention is lower than prior art, and air quantity is larger, and effect is more obvious.
After nozzle of the present invention is applied to induction air conditioning equipment, can promote sound absorption, vibration damping efficiency, the regeneration noise that equipment produces is lower, also improves the condensation-proof condensation ability of nozzle.
Be to be understood that, although this description is described according to embodiment, but not each embodiment only comprises an independently technical scheme, this narrating mode of description is only for clarity sake, those skilled in the art should by description integrally, technical scheme in each embodiment also through appropriately combined, can form other embodiments that it will be appreciated by those skilled in the art that.
A series of detailed description listed is above only illustrating for feasibility embodiment of the present invention; they are also not used to limit the scope of the invention, all do not depart from the skill of the present invention equivalent implementations done of spirit or change all should be included within protection scope of the present invention.
Claims (10)
1. a nozzle, comprises inner chamber, it is characterized in that, the inner chamber radial section of described nozzle is polygon, and described polygon is that many mutually isostructural limits combine, wherein, every bar limit is provided with the first Distance geometry second distance to the nozzle longitudinal axis, and described first distance is unequal with described second distance.
2. nozzle according to claim 1, it is characterized in that, described limit is set to arc, the summit of described arc and the distance of the described nozzle longitudinal axis are the first distance, the distance of the tie point between described arc and the described nozzle longitudinal axis is second distance, and described first distance is greater than described second distance.
3. nozzle according to claim 1, it is characterized in that, described limit is set to straight line, and the vertical range of described straight line and the described nozzle longitudinal axis is the first distance, the distance of the tie point between described straight line and the described nozzle longitudinal axis is second distance, and described first distance is less than described second distance.
4. nozzle according to claim 1, is characterized in that, described surface of internal cavity comprises at least one damping piece.
5. nozzle according to claim 4, is characterized in that, described damping piece is hemispherical projection.
6., according to the arbitrary described nozzle of claim 4 or 5, it is characterized in that, described damping piece is at least two, and has gap between described damping piece, and described gap is mutually through.
7. nozzle according to claim 1, is characterized in that, described nozzle is quality of rubber materials.
8. an induction air adjuster, comprise nozzle, it is characterized in that, described nozzle comprises inner chamber, described inner chamber radial section is polygon, and described polygon is combined by many mutually isostructural limits, wherein, every bar limit is provided with the first Distance geometry second distance to the nozzle longitudinal axis, and described first distance is unequal with described second distance.
9. induction air adjuster according to claim 8, it is characterized in that, described limit is set to arc, and the summit of described arc and the distance of the described nozzle longitudinal axis are the first distance, and the distance of the tie point between described arc and the described nozzle longitudinal axis is second distance.
10. induction air adjuster according to claim 8, is characterized in that, described nozzle chamber surface comprises at least one damping piece.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410620389.XA CN105509274A (en) | 2014-11-07 | 2014-11-07 | Spray nozzle and induction type air regulating equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410620389.XA CN105509274A (en) | 2014-11-07 | 2014-11-07 | Spray nozzle and induction type air regulating equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105509274A true CN105509274A (en) | 2016-04-20 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410620389.XA Pending CN105509274A (en) | 2014-11-07 | 2014-11-07 | Spray nozzle and induction type air regulating equipment |
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| CN (1) | CN105509274A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112696812A (en) * | 2020-12-31 | 2021-04-23 | 华北电力大学 | High-speed jet flow-based fan-driven-free air supply device at tail end of air conditioner |
Citations (12)
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|---|---|---|---|---|
| DE3343731A1 (en) * | 1982-12-01 | 1984-06-14 | Henning 8270 Höjbjerg Frandsen | Air distributing element in the form of a so-called nozzle crown, especially for arrangement on downward-directed blow-in pipes in poultry farm buildings or the like |
| JPH02171544A (en) * | 1988-11-12 | 1990-07-03 | Schako Metallwarenfab Ferdinand Schad Kg | Nozzle type air injector |
| EP0616177A1 (en) * | 1993-03-19 | 1994-09-21 | Schako Metallwarenfabrik Ferdinand Schad Kg | Nozzle outlet |
| CN2251112Y (en) * | 1995-10-24 | 1997-04-02 | 河南八方科贸公司 | Rotatable head controllable air quantity noise reduction blast jet |
| JPH09280638A (en) * | 1996-04-16 | 1997-10-31 | Matsushita Seiko Co Ltd | Device for blowing air out |
| US6004204A (en) * | 1995-03-10 | 1999-12-21 | Luminis Pty Ltd. | Induction nozzle and arrangement |
| JP2001201162A (en) * | 2000-01-21 | 2001-07-27 | Kankyo Engineering:Kk | Blow-off hole device |
| CN2777414Y (en) * | 2002-03-28 | 2006-05-03 | 妥思空调设备(苏州)有限公司 | Air port |
| CN201041399Y (en) * | 2007-04-24 | 2008-03-26 | 崔国华 | Tuyere device |
| CN103196215A (en) * | 2012-01-05 | 2013-07-10 | 木村工机株式会社 | Air blowout device |
| CN104101067A (en) * | 2014-07-08 | 2014-10-15 | 长兴百叶龙演出有限公司 | Air outlet device of air conditioner in theater |
| CN204254832U (en) * | 2014-11-07 | 2015-04-08 | 俞文伟 | Nozzle and induction air conditioning equipment |
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2014
- 2014-11-07 CN CN201410620389.XA patent/CN105509274A/en active Pending
Patent Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3343731A1 (en) * | 1982-12-01 | 1984-06-14 | Henning 8270 Höjbjerg Frandsen | Air distributing element in the form of a so-called nozzle crown, especially for arrangement on downward-directed blow-in pipes in poultry farm buildings or the like |
| JPH02171544A (en) * | 1988-11-12 | 1990-07-03 | Schako Metallwarenfab Ferdinand Schad Kg | Nozzle type air injector |
| EP0616177A1 (en) * | 1993-03-19 | 1994-09-21 | Schako Metallwarenfabrik Ferdinand Schad Kg | Nozzle outlet |
| US6004204A (en) * | 1995-03-10 | 1999-12-21 | Luminis Pty Ltd. | Induction nozzle and arrangement |
| CN2251112Y (en) * | 1995-10-24 | 1997-04-02 | 河南八方科贸公司 | Rotatable head controllable air quantity noise reduction blast jet |
| JPH09280638A (en) * | 1996-04-16 | 1997-10-31 | Matsushita Seiko Co Ltd | Device for blowing air out |
| JP2001201162A (en) * | 2000-01-21 | 2001-07-27 | Kankyo Engineering:Kk | Blow-off hole device |
| CN2777414Y (en) * | 2002-03-28 | 2006-05-03 | 妥思空调设备(苏州)有限公司 | Air port |
| CN201041399Y (en) * | 2007-04-24 | 2008-03-26 | 崔国华 | Tuyere device |
| CN103196215A (en) * | 2012-01-05 | 2013-07-10 | 木村工机株式会社 | Air blowout device |
| CN104101067A (en) * | 2014-07-08 | 2014-10-15 | 长兴百叶龙演出有限公司 | Air outlet device of air conditioner in theater |
| CN204254832U (en) * | 2014-11-07 | 2015-04-08 | 俞文伟 | Nozzle and induction air conditioning equipment |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112696812A (en) * | 2020-12-31 | 2021-04-23 | 华北电力大学 | High-speed jet flow-based fan-driven-free air supply device at tail end of air conditioner |
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Application publication date: 20160420 |
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