CN1879975A - Ultramicro atomization spray nozzle - Google Patents
Ultramicro atomization spray nozzle Download PDFInfo
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- CN1879975A CN1879975A CN 200510079481 CN200510079481A CN1879975A CN 1879975 A CN1879975 A CN 1879975A CN 200510079481 CN200510079481 CN 200510079481 CN 200510079481 A CN200510079481 A CN 200510079481A CN 1879975 A CN1879975 A CN 1879975A
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Abstract
The invention relates to an ultra micro atom ejector, wherein it sets air channel via baffle walls at the circumference of liquid channel; said air channel is through to the ejector; the shape of baffle wall at the ejector is polygon, oblate or ellipses; the circumference of air channel is round shape; the outer surface of baffle wall are contacted with the circumference of round section at several parts, to separate the air channel at the ejection side into several air channels; and the atomizing is realized by mixing the gas ejected from ejectors and the liquid ejected from the liquid channel; the inventive dual-fluid nozzle will not be blocked.
Description
Technical field
The present invention relates to ultramicro atomization spray nozzle, what relate to is in order to gases such as water, soup, wet goods liquid-to-air are carried out mixed atomizing, and form the ultramicron that average grain diameter is counted μ m, even the two-fluid nozzle that so-called dry fog was sprayed, promptly taken place to the also wet dry state of hand contact takes place.
Background technology
During nozzle ejection liquid, in case average grain diameter is 10 μ m or following, maximum particle diameter is 50 μ m or following, contacts also imperceptible moistening spraying, is so-called dry fog even just become hand.This dry fog can not produce adhesional wetting when spraying, thereby can be suitable for the idle call nozzle, and can be widely used in other purposes.
As this ultramicro atomization spray nozzle, this case applicant provides Japanese kokai publication sho 54-111117 number (patent documentation 1), special public clear 62-14343 number (patent documentation 2), special fair 4-9104 number many patents such as (patent documentations 3).
The nozzle that is proposed in the above-mentioned patent documentation is the two-fluid spray nozzle of liquids and gases, is provided with to make front end nozzle resettlement section toward each other by bending after becoming V-shape by nozzle body branch, and is loading nozzle core respectively in the said nozzle resettlement section.The periphery of each nozzle core and nozzle resettlement section are provided with air flue between the two, and fluid path is set at the center of nozzle core, utilize the compressed air that sprays from air flue from the front opening imbitition of fluid path and form gas liquid mixture straight line takes place in the injection portion of nozzle core.By a pair of nozzle core is disposed in opposite directions, above-mentioned gas liquid mixture just can collide the ultra micro mist is taken place.
The ultramicro atomization spray nozzle of above-mentioned formation; collide mixing by spraying gas liquid mixture from the nozzle core injection portion of configuration in opposite directions; mix with gas and to realize that micronized drop can mix by further collision and realize further micronize; form the drop of above-mentioned 1～10 μ m, become the ultra micro mist of dry fog.
Like this, its advantage of said nozzle is the ultra micro mist can take place, but is difficult for taking place aspect the obstruction at the injection portion A place of nozzle core front end and reduces noise aspect that nozzle took place etc. leaveing some room for improvement.
In order to reduce particle diameter, preferably increase air supply and improve gas-water ratio.But improve the words of gas-water ratio (gas volume/liquid volume), increase air capacity, contained impurity is just separated out near jet in the empty G﹠W, the impurity of being separated out is attached on nozzle core, the nozzle body easily, especially easily be attached to the jet position of air flue, generation results in blockage.According to present inventor's test,, gas-water ratio just stops up easily in case surpassing 1000.
As the countermeasure that prevents to stop up, it is effective measures that the reduction air water recently reduces air supply, but gas-water ratio less than 1000, its problem of the nozzle of above-mentioned patent documentation 1 is that particle diameter is relatively large, can't realize the ultra micro mist.Shown in Figure 16 is to provide the present inventor for gas-water ratio, maximum particle diameter and obstruction incidence being compared the result's who is measured chart.In the middle of this chart, can confirm, in case make gas-water ratio be 1000 or above particle diameter just reduce, but stop up easily, and gas-water ratio less than 1000 just is difficult for stopping up, but the particle diameter increase.
And, also can consider to take place, but contained calcium, silica can become impurity in the water by preventing that impurities sneaks into to prevent to stop up in sealing, the air, the sealant, the cutting wet goods that are attached to feed pipe, compressed air supply pipe also can become impurity.With regard to water, install water purifior additional and use the words of pure water can remove impurity to a certain extent, but be difficult to the above-mentioned calcium, the silica that are dissolved in the water are removed fully.And, under many environmental conditions such as dust, sneak into foreign matter easily in the air, the foreign matter that stops up takes place even also be difficult to remove fully the air flue that is enough to cause small sectional area by air cleaner.
Like this, be difficult to effectively suppress, prevent to stop up take place, need the nozzle that take place to stop up be keeped in repair, thereby the problem that exists operating efficiency to reduce.
And in order to make the particle diameter micronize, needing to improve air water recently increases air supply; and need reduce the sectional area of air flue; but the sectional area of air flue is reduced, and the sound that nozzle took place just increases easily, and the sound that nozzle took place under quiet environment just becomes noise.In addition, improve gas-water ratio and also have the high problem of cost.
Summary of the invention
The present invention does in view of the above problems, its problem is, in the average grain diameter of drop is that 10 μ m or following, maximum particle diameter are in 50 μ m or the following ultramicro atomization spray nozzle, mainly suppresses the generation of stopping up, and recently realizes low sound, low cost by reducing air water.
In order to solve above-mentioned problem, the 1st invention provides a kind of ultramicro atomization spray nozzle, it is characterized in that, outer circumferential side Jie at fluid path is provided with the gas passage with partition wall, the gas passage that is communicated with jet, the profile of the injection oral-lateral of described partition wall is formed section polygon, oblate or oval-shaped abnormity, and the outer peripheral face of described gas passage forms the cross section circle, make the outer peripheral face butt of the special-shaped outer surface of described partition wall in a plurality of positions and this cross section circle, the gas passage of described ejection side is separated into a plurality of gas passages in a circumferential direction, perhaps
The outer surface of described partition wall is formed the cross section circle, and the outer peripheral face of the injection oral-lateral of described gas passage forms section polygon, oblateness or oval-shaped abnormity, with the outer peripheral face of described partition wall at a plurality of positions butt, the gas passage of described ejection side is separated into a plurality of gas passages in a circumferential direction
The periphery of the liquid that the gas that jet sprayed of a plurality of gas passages by making described separation and described fluid path are sprayed is mixed, and spraying takes place.
In the 1st invention, the ejection side of the gas passage that the easiest generation stops up is separated in a circumferential direction form a plurality of paths, and the sectional area of each path is reduced, and circular combined by cross section as mentioned above with abnormity such as section polygon, bigger middle body of its flow path area of each gas passage of being separated and narrower corner portions located are set.In case form this shape, find that according to present inventor's test mainly in the big middle body circulation of flow path area, the gas passage is difficult for stopping up gas.
And the sectional area of each gas passage that can separate by reducing strengthens gas pressure, therefore can reduce institute's gas supplied amount, thereby can reduce the main contained impurity in the air of this gas that is used as itself, the therefore generation that can suppress to stop up.
In addition, the gas passage of jet opening is divided into a plurality of, and reduces the gas flow that is circulated in each gas passage, thereby the sound that is taken place can reduce spraying the time.
Make under the occasion of gas delivery volume minimizing; Pen Wu particle diameter often becomes greatly as mentioned above, but among the present invention, by the gas passage being separated reduce the sectional area of 1 gas passage; thereby gas pressure can strengthen, thus liquids and gases both can also realize the micronize of liquid when mixing.
Test according to the present inventor can be confirmed, the gas-water ratio (gas volume/liquid volume) of the gas of the liquid of feed fluid path and supply gas path is set at less than 1000 but is 800 or above scope, just can maximum particle diameter to take place when taking place be 50 μ m or following ultra micro mist suppressing to stop up.
As above-mentioned used gas, can suit to use compressed air, but also can use pressure air from air blast from compressor.
In the nozzle of the present invention preferably, the jet of described fluid path is more outstanding than the jet of described gas passage, make gas be injected into the periphery of the liquid that fluid path sprays from the jet of described gas passage, both carry out external mix to make liquids and gases, and
Injection portion with described fluid path and gas passage is disposed in opposite directions by required interval and required angle, and make gas-liquid mixture fluid collide mixing each other in each injection portion external mix.
Like this, make through each injection portion gas-liquid mixture fluid that both mix with liquids and gases and further collide mixing, the average grain diameter that can make drop is 1 μ m～10 mu m ranges, thereby can promote the further micronize of drop.
Described fluid path and gas passage, specifically, fluid path forms along the axle center that is embedded in the 1st nozzle core in the core resettlement section of nozzle body, forms described partition wall with the perisporium of the 1st nozzle core,
And the inner peripheral surface of the 1st nozzle core and described core resettlement section between the two, the 2nd nozzle core and described the 1st nozzle core that perhaps are embedded in the described core resettlement section form described gas passage between the two, form the periphery wall of described gas passage with described core resettlement section or described the 2nd nozzle core.
Specifically, can form fluid path and gas passage by nozzle body and the 1st nozzle core, also can make the 2nd nozzle core that is disposed at the 1st central nozzle core and is embedded in the 1st nozzle core outward constitute nozzle core, and the 2nd nozzle core is fixed in the inner face of the core resettlement section of nozzle body.
Adopt which kind of method, can take metal still to take resin and formation method to utilize punching press or machining still to utilize resin forming to select corresponding to the nozzle constituent material.
Preferably, each sectional area of described a plurality of gas passages forms roughly the same sectional area, and
If the total sectional area of described a plurality of gas passages is that the sectional area of the described fluid path at S1, position that this gas passage surrounds is S2, then with S1: S2 is set at 5: 1～5: 2 scopes.
The sectional area S2 ratio between two of the total sectional area S1 of described gas passage and fluid path is the suitable scope that present inventor's repetition test is found.
And, preferably be set at S3: S2=10: 10～9: 10 scopes through each the sectional area S3 of the gas passage of over-segmentation and the sectional area S2 of fluid path.
Select in the scope that the long-pending ratio between two of described gas sectional area and liquid cross-sectional can provide according to following condition, the sectional area of 1 gas passage of wherein being separated forms the area that can suppress to stop up generation, and gas-water ratio can be controlled at above-mentioned less than 1000 but be 800 or above scope in.
And, preferably the inner peripheral surface of described a plurality of gas passages of separating or/and outer peripheral face be provided with fluororesin by rete.
Be provided with above-mentionedly by the occasion of rete, it is effective especially to form this situation of metal system for nozzle body and nozzle core, can utilize this to be made impurity contained in the gas be difficult for adhering to by rete, is effective countermeasure for the generation that prevents to stop up.
In addition, be not that nozzle body and nozzle core are formed metal system, but the occasion that nozzle body with described core resettlement section and described nozzle core are carried out resin forming, with the fluorine resin moulding, because sliding is good thereby can effectively prevent the generation of stopping up.
And, preferably the jet of described fluid path is than the outstanding 0.3～0.8mm of the jet of described gas passage, described its axis angulation of injection portion of configuration in opposite directions is set at 70 °～160 °, is set at 3～15mm from above-mentioned each jet to the distance of colliding point.
In addition, preferably described institute gas separated path forms roughly the same sectional area from the gas inflow side to gas ejection ports at axis direction, fluid path its periphery wall outstanding from gas ejection ports then forms the progressively taper of undergauge, and the jet inner circumferential surface of described fluid path forms the taper of progressively hole enlargement.Like this; its sectional area of gas separated path does not enlarge at the ejection side front end by making; make the gas that is ejected into the liquid periphery not to external diffusion; from the liquid of central-injection then by being diffused into outer circumferential side; can promote both mixing of liquids and gases, and promote the micronize of the liquid that causes by pressed gas.
Preferably, its cone angle of ejection side periphery wall of the fluid path at outstanding position is set in 15 °～40 ° scopes from described gas passage, and the cone angle of described liquid ejection outlet is set in 90 °～170 ° scopes.
This is because the present inventor finds that according to test becoming average grain diameter from the droplet-shaped of spraying is that 10 μ m or following ultra micro mist aspect are considered more suitable.
The 2nd invention provides a kind of ultramicro atomization spray nozzle, it is characterized in that,
The outer circumferential side of fluid path is provided with the gas passage that inner peripheral surface at least has the resin portion that forms even surface, the jet of described fluid path is than the outwards outstanding 0.3～0.8mm of the jet of described gas passage, form and make liquids and gases by the periphery that makes gas be ejected into the liquid that fluid path sprays both carry out the structure of external mix from the jet of described gas passage
Injection portion with described fluid path and gas passage is disposed in opposite directions, its axis angulation of the injection portion that this disposes in opposite directions is set at 70 °～160 °, be set at 3～15mm from above-mentioned each jet to the distance of colliding point, make gas-liquid mixture fluid collide mixing each other in each injection portion external mix, the average grain diameter that forms drop is at 1 μ m～10 mu m ranges, maximum particle diameter is 50 μ m or following
And make to supply with the liquid of described fluid path and supply gas path gas gas-water ratio (gas volume/liquid volume) less than 1000 but be 800 or more than.
In the described nozzle, preferably the resin portion of the inner peripheral surface of described gas passage forms with fluororesin, and its cone angle of ejection side periphery wall of the fluid path at outstanding position is set in 15 °～40 ° scopes from this gas passage, and the cone angle of described liquid ejection outlet is set in 90 °～170 ° scopes.
The nozzle of above-mentioned formation is different with the 1st invention, the gas passage is not divided into a plurality ofly, but can reduce air capacities by making gas-water ratio less than 1000, and the inner peripheral surface in the gas passage fluororesin such as exposes, and realizes the inhibition of stopping up and reduces noise.
In addition, provide a kind of ultramicro atomization spray nozzle to install parts additional in the 3rd invention, can be used for assembling air-conditioner, humidifier, cooler and other industrial uses of the ultramicro atomization spray nozzle of above-mentioned formation.
As mentioned above, ultramicro atomization spray nozzle of the present invention by forming not susceptible to plugging formation, can reduce the maintenance times taken place because of stopping up, and the occasion that is used for the industrial use that is associated with it can be enhanced productivity.
And, can realize that the ejection sound that nozzle takes place reduces, thereby the occasion of using can prevent nozzle generation noise under quiet environment.
In addition, even gas-water ratio less than 1000 also can make particle diameter form average 10 μ m degree, thereby can also realize that cost reduces.
Description of drawings
Fig. 1 is the front view of the present invention's the 1st embodiment nozzle.
Fig. 2 is the partial sectional view of the 1st embodiment.
Fig. 3 be Fig. 2 want portion's cutaway view.
Fig. 4 is the left side view of Fig. 3.
Fig. 5 is a V-V line cutaway view among Fig. 3.
Fig. 6 is the local amplification view of Fig. 3.
Fig. 7 is the cutaway view that Fig. 1 variation is shown.
Fig. 8 be the 2nd embodiment want portion's cutaway view.
Fig. 9 (A)～Fig. 9 (D) is the cutaway view that another embodiment of gas passage is shown.
Figure 10 is the cutaway view of the 3rd embodiment.
Figure 11 is the cutaway view of the variation of the 3rd embodiment.
Figure 12 is the cutaway view of the 4th embodiment.
Figure 13 illustrates the 5th embodiment, and Figure 13 (A) is the front view of injection portion, Figure 13 (B) be whole nozzle want portion's cutaway view.
Figure 14 is the vertical view of the 6th embodiment.
Figure 15 is the cutaway view of the 6th embodiment.
Figure 16 is the chart that relation between gas-water ratio, particle diameter and the obstruction is shown.
The specific embodiment
Embodiments of the present invention are described with reference to the accompanying drawings.
Fig. 1～Fig. 6 illustrates the 1st embodiment.The nozzle of the 1st embodiment be with water as liquid, compressed air as gas and be assemblied in nozzle on the air conditioner.
The nozzle of the 1st embodiment, comprises as chief component: nozzle body 1 as nozzle core with the combination of the 1st nozzle core and the 2nd nozzle core; Can adorn with the rear end side of this nozzle body 1 and to take off the liquid/gas that is connected freely and supply with adapter 2; And the nozzle core 3 that is constituted by the 1st nozzle core 30 in the core resettlement section that is equipped on nozzle body 1 respectively and the 2nd nozzle core 40.Above-mentioned the 1st, the 2nd nozzle core 30,40 is a metal system, and nozzle body 1, adapter then are resin system.
Nozzle body 1, branching portion 11 and core resettlement section 13 are tilted and outstanding setting the near ejection side, the front end face of the cylindrical portion 10 that branching portion 11 (11-1 and 11-2) is connected with adapter 2 from the rear end is the V-shape bifurcated, and core resettlement section 13 (13-1,13-2) lays respectively at each front end of above-mentioned branching portion 11.
Be embedded with nozzle core 3 (3-1,3-2) and stopper 4 (4-1,4-2) respectively in the above-mentioned core resettlement section 13 (13-1,13-2) in opposite directions, the some P1 that its central axis of spraying (central axis of nozzle core) Y1-Y1 that is sprayed from the front end injection A of portion (A1, A2) of in opposite directions nozzle core 3 (3-1 and 3-2) and Y2-Y2 are set on the central axis X-X of the cylindrical portion 10 of nozzle body 1 intersects.
The relative angle θ 1 that above-mentioned axis Y1-Y1 is become with Y2-Y2 is set in 70 °～160 ° scopes, and distance L 2 is set at respectively in 3～15mm scope between the A1 of injection portion and some P, A2 and the some P.
The path of liquid in the said nozzle main body (water) Q and gas (air) A, at first in adapter 2, be provided with gas and flow into road 2a along the axle center, and the liquid that is provided with in the outer peripheral face upper shed flows into road 2b, then at above-mentioned branching portion 11 places, respectively, gas flows into road 2a and is communicated with gas passage 11a, and liquid flows into road 2b and is communicated with fluid path 11b.
The gas passage 3a of the outer circumferential side that gas passage 11a is provided with nozzle core 3 in core resettlement section 13 is communicated with, and fluid path 11b is communicated with the fluid path 4a of stopper 4 settings, and this fluid path 4a is communicated with the fluid path of nozzle core 3.The front end injection A of portion (A1, A2) of nozzle core 3 locates, and is identical with above-mentioned patent documentation 1, and the gas A that is sprayed by the periphery gas passage carries out gas-liquid mixed from the fluid path 3b imbitition Q at center, and this fluid-mixing is collided at above-mentioned some P1 place.
The nozzle core 3 (3-1,3-2) of above-mentioned configuration in opposite directions it be shaped as identical shapedly, describes the shape of this nozzle core 3 below in detail.
Therefore, the partition wall of fluid path and gas passage utilizes the perisporium of the 1st nozzle core 30 to form, and the periphery wall of gas passage then utilizes the 2nd nozzle core 40 to form.
As shown in Figure 3, the 1st nozzle core 30 be provided with the big footpath cylindrical portion 31 that is connected with described stopper 4, with should big footpath cylindrical portion 31 continuous middle footpath cylindrical portion 32, by circular cone tube portion 33 with should in the continuous path square tube portion 34 of front end of footpath cylindrical portion 32, the profile of this square tube portion 34 forms the cross section square.In addition, the ejection side of this square tube portion 34 has the circular cone tube portion 35 towards the front end undergauge continuously.The tilt angle theta 3 of the circular cone tube portion 35 of this front end forms 15 °～40 °.
Axle center along above-mentioned big footpath cylindrical portion 31, middle footpath cylindrical portion 32, circular cone tube portion 33, square tube portion 34, circular cone tube portion 35 is provided with the fluid path 37 of cross section circle.The fluid path 4a of the stopper 4 that this fluid path 37 is connected with the rear end is connected, and the fluid path 11b of branching portion 11 is connected with this fluid path 4a.Thereby, make liquid pass through the fluid path 37 that fluid path 11b, 4a flow into the 1st nozzle core 30.
Aforesaid liquid path 37, its sectional area of fluid path 37a along big footpath cylindrical portion 31 and cylindrical portion 32 axle center, middle footpath forms identical, from near its reduced cross-sectional area of fluid path 37b the front opening of circular cone tube portion 33 to square tube portion 34, circular cone tube portion 35, make fluid path 37c form minimum sectional area with the approaching position of the openend 35a of circular cone tube portion 35 in addition, the openend 37d place that becomes the front end jet enlarges by taper to the outside.As shown in Figure 6, this taper angle theta 4 forms 90 °～170 ° scopes.
Above-mentioned big footpath cylindrical portion 31 is embedded in core resettlement section 13, and central outer peripheral face is provided with gas and flows into recess 31a, and is provided with the gas passage 31c that this gas flows into recess 31a and is communicated with the front end face 31b of big footpath cylindrical portion 31.This gas passage 31c is connected with the 1st nozzle core 30 and the 2nd nozzle core 40 gas passage 41 between the two.
Above-mentioned the 2nd nozzle core 40 is taper barrel shape roughly, form with core resettlement section 13 that the ejection side perisporium 13a of cone shape is concavo-convex chimericly to carry out embedded fixingly, and middle footpath cylindrical portion 32 to the square tube portion 34 that outer embedding is assembled into the 1st nozzle core 30 leaves the space that becomes gas passage 41.And, make the leading section 40a of the 2nd nozzle core 40 outstanding, and make the circular cone tube portion 35 of above-mentioned the 1st nozzle core 30 further give prominence to required size L3 (0.3～0.8mm) with respect to this leading section 40a center from the front end face 13b of the perisporium 13a of core resettlement section 13.
The inner peripheral surface of the 2nd nozzle core 40, form taper seat 42 from the position of rear portion side embedding until outside of rear end to the square tube portion 34 of joining with the front end face periphery of the big footpath cylindrical portion 31 of the 1st nozzle core 30, form the circular cross-section in roughly the same cross section from the front end of this taper seat 42 to the inner peripheral surface 43 of openend 40b by gas passage 41.
Therefore, as shown in Figure 5, be embedded with the cross section foursquare square tube portion 34 of the 1st nozzle core 30 in the circular inner peripheral surface 43 of the 2nd nozzle core 40, make inner peripheral surface 43 butts of 4 summit 34c, 34d, 34e, 34f and the 2nd nozzle core 40 of square tube portion 34.Thus, make inner peripheral surface 43 and the formed gas passage of square tube portion 34 outer surfaces just be separated into 4 gas passage 41a～41d between the two.Above-mentioned gas path 41a～41d just becomes roughly crescent section as shown in the figure, and the total sectional area S1 that above-mentioned crescent section is long-pending and the fluid path sectional area S2 ratio between two of square tube portion 34 are S1: S2=5: 1～5: 2.
The total sectional area S1 of the gas passage of above-mentioned crescent section is preferably 0.3～0.6mm
2Scope, fluid path sectional area S2 is preferably 0.08～0.2mm
2Scope.
In addition, fluid path is pressed the taper hole enlargement at jet, thereby jet (liquid hole) is 0.4～0.45mm
2Scope.
Therefore, gas be diverted to gas passage 41 from taper seat 42 and annulus 41e between the footpath cylindrical portion 32 be divided into gas passage 41a～41d of 4, the openend 40b by the 2nd nozzle core 40 under this minute stream mode sprays.
In addition, as shown in Figure 7, in the foursquare square tube in the cross section portion 34, also can form arc surface 34c '～34e ' by each vertex position outside, make inner peripheral surface 43 butts of this arc surface 34c '～34e ' and the 2nd nozzle core 40, the gas passage is divided into 4 paths.
And, as shown in Figure 6, in above-mentioned the 1st nozzle core 30 at least the outer peripheral face of square tube portion 34 form resin coating 50 with flatness.And though not shown, the inner peripheral surface 43 of the 2nd nozzle core 40 also is formed with resin coating.Carry out polytetrafluoroethylene (PTFE) (R) coating in the present embodiment.
In addition, also can will also comprise nozzle core in the fluorine resin moulding of the part of interior said nozzle.
As mentioned above, in the present embodiment, the gas A of supply nozzle adopts the Compressed Gas (about 3kg/cm3) from compressor, and water is as liquid Q.This water uses is water by water purifior, but not necessarily is limited to the water by water purifior.
The gas-water ratio less than 1000 of gas A and liquid Q, preferably 800～990 scopes are 900 in the present embodiment.
The following describes the effect of the nozzle that above-mentioned formation forms.
Among each A1 of nozzle ejection portion, A2, be divided into 4 the outside gas jet of gas passage 41a～41d, and liquid Q be ejected into the center of the gas A that is sprayed from the front opening of fluid path 37 from nozzle core 3.Gas A and liquid Q carry out the drop micronize that external mix makes liquid Q.In addition; the gas-liquid mixture fluid that injection portion A1, the A2 of each nozzle core 3 are mixed collides mixing each other at crosspoint P place; drop collide to mix further micronize because of this, and becoming average grain diameter is 10 μ m or following, promptly becomes 1 μ m～10 μ m, maximum particle diameter is 50 μ m or following dry fog.
In the two-fluid spray nozzle, near the jet, especially near the jet of gas passage, near the jet of gas passage, stop up easily, but near jet, the gas passage is divided into the gas passage 41a～41d of 4 crescent sections in the present embodiment, thereby be not easy to stop up.Test according to the present inventor can confirm that the obstruction incidence is compared with the nozzle of above-mentioned patent documentation 1 and reduced by 70～80% significantly.
Its 1st reason can be thought, among each gas passage 41a～41d, can produce roomy part 41a-1 at middle body, and at two side portions generation narrow 41a-2 (41b, hereinafter also identical), gas just is passed to the roomy part 41a-1 of central authorities, is not easy to stop up in this roomy part.
The 2nd reason can be thought, by being 4 with the gas passage disjunction, compares with 1 ring-type gas passage of patent documentation 1, and the sectional area of 1 gas passage sharply reduces, thereby gas pressure increases.And, the front end face of circular cone tube portion 35 to the 2 nozzle cores 40 of the 1st nozzle core 30 front ends is more outstanding, and the sectional area of 4 gas passage 41a～41d is enlarged near jet, thereby can carry out external mix with liquid Q spraying expulsion pressure gas under the situation that last instantaneous pressure is unlikely to reduce.Consequently, be 900 of less than 1000 even the minimizing of gas supplied amount is made gas-water ratio, also can make the average grain diameter of being sprayed is 10 μ m or following.Like this, just can make gas-water ratio less than 1000 and its aridity of the spraying of being sprayed is reduced, can also reduce the gas delivery volume of supply gas path, thereby also can suppress to stop up because of the impurity in the gas.
The 3rd reason can think, the side face (inner peripheral surface 43 of the outside of square tube portion 34 and the 2nd nozzle core 40) of gas passage 41a～41d is carried out polytetrafluoroethylene (PTFE) (R) coating, forms the structure that impurity is difficult for adhering to, and can suppress to stop up and take place.
And, as mentioned above, the gas passage of jet opening is divided into 4 among the present invention, and the gas flow that circulates in each gas passage is reduced, thereby the sound that is taken place can reduce spraying the time.
In addition, can also be that 900 of less than 1000 reduces the used compressed gas scale of construction by making gas-water ratio, can realize low cost.In addition, institute's gas supplied is not limited to the Compressed Gas from compressor, also can be air blast institute gas supplied.
Also have, square tube portion 34 by the 1st nozzle core 30 joins at the inner peripheral surface 43 of 4 places and the 2nd nozzle core 40, compare with leaving the situation that the complete cycle of gas passage with the 1st nozzle core 30 be disposed at the 2nd nozzle core 40 inside, can stablize and support the 1st nozzle core 30, and assembling operation is also easy.
Fig. 8 illustrates the 2nd embodiment, and the 1st embodiment forms nozzle core by the 1st nozzle core 30 and the 2nd nozzle core 40 these 2 members, but part that will be suitable with the 2nd nozzle core 40 in the present embodiment is integrally formed with the core resettlement section 11 of nozzle body 1.That is to say that nozzle core only forms the 1st nozzle core 30.
Specifically, the perisporium of identical usefulness the 1st nozzle core 30 with the 1st embodiment of the partition wall of fluid path and gas passage forms, but the periphery wall of gas passage forms with the perisporium of the core resettlement section of nozzle body.
Among the 2nd embodiment, front side at the 13a ' of hole portion of the big footpath of chimeric nozzle core 30 cylindrical portion 31 in the core resettlement section 13 ' of nozzle body 1 makes the 13b ' of conical bore portion continuous by stage portion 13c ', and is formed with the path hole 13d ' of portion of cross section circle at the nose circle of the 13b ' of this conical bore portion.The inner peripheral surface of this path hole 13d ' of portion is embedded with the square tube portion 34 of nozzle core 30, with the 1st embodiment 4 place's butts that coexist mutually, forms 4 the gas passage 41a～41ds of gas passage 41 through separating.Other formations are identical with the 1st embodiment, thereby omit explanation.
Form the formation of above-mentioned the 2nd embodiment, but only the 2nd nozzle core and nozzle body integrally formed aspect different, thereby action effect is identical with the 1st embodiment.
And though its processing of nozzle body or moulding complexity, its advantage is that the part number reduces, and assembling procedure is few.
Fig. 9 (A)～Fig. 9 (D) illustrates other embodiment of institute's gas separated path.
Specifically, the profile of the square tube portion 34 of the 1st embodiment and the 2nd embodiment the 1st nozzle core 30 forms the cross section square, and the gas passage is divided into 4, but the gas passage that will spray oral-lateral shown in other embodiment is divided into 2,3 and 6.In addition, the division number of gas passage is the upper limit with 8 degree such as branch such as grade, in case excessively divide, the sectional area of 1 gas passage becomes too small, in order to supply with the desired gas amount, it is excessive that the sectional area of nozzle core just becomes, and the area of each gas passage Breadth Maximum portion can diminish, and stops up easily on the contrary.
Something in common is that the inner peripheral surface 43 of the 2nd nozzle core 40 forms circle among Fig. 9 (A)～Fig. 9 (D), and is provided with the fluid path 37 of cross section circle at the axle center part of the square tube portion of the 1st nozzle core 30.
In addition, also the 2nd nozzle core can be set, and identical core resettlement section with the 2nd nozzle core and nozzle body with the 2nd embodiment is wholely set.
The square tube portion 34 ' of Fig. 9 (A) forms rectilinear form with 2 limits in opposite directions, and 2 limits of phase quadrature are formed arc surface, and the gas passage is divided in opposite directions 2 gas passage 41a ' and 41b '.
The square tube portion 34 ' of Fig. 9 (B) forms section triangle, makes 3 summits and inner peripheral surface 43 butts, and the gas passage is divided into 3 gas passage 41a '～41c '.
The square tube portion 34 ' of Fig. 9 (C) forms the cross section hexagon, makes 6 summits and inner peripheral surface 43 butts, and the gas passage is divided into 6 gas passage 41a '～41f '.
The outer peripheral face of the square tube portion 34 ' of Fig. 9 (D) is provided with 6 recesses at circumferencial direction, and forms the outstanding this similar star-like shape in 6 summits, makes 6 summits and inner peripheral surface 43 butts, and the gas passage is divided into 6 gas passage 41a '～41f '.
Even form wherein any shape, the sectional area S2 of the total area S1 of the sectional area of the gas passage of being cut apart and the center fluid path of square tube portion 34 still sets up above-mentioned S1: S2=5: 1～5: 2 this relations.
Figure 10 illustrates the 3rd embodiment, the gas passage of spraying oral-lateral is divided, with the 2nd nozzle core 40 " hole shape form square hole, form inner face 43 by 4 planareas ".On the other hand, the 1st nozzle core 30 sides form square tube portion the cylindrical portion 34 of cross section circle ".This cylindrical portion 34 " cylindrical be the circumscribed circle relative with the inner face 43 of square hole, in cylindrical portion 34 " and the inner face 43 of square hole be provided with the gas passage 41a that is divided into 4 between the two "～41d ".In addition, the 2nd nozzle core 40 " its any edge part of square hole of being provided with all is provided with bigger fillet.
Figure 11 illustrates the variation of the 3rd embodiment, and the hole shape of the 2nd nozzle core 40 ' is formed elliptical aperture, and the 2nd nozzle core has formed and cylindrical portion 34 " between be divided into 2 gas passage 41a ", 41b ".
As shown in Figure 10 and Figure 11, even the 1st nozzle core 30 is formed cylindrical portion 34 ", and to the 2nd nozzle core 40 " be provided with square hole, the gas passage of spraying oral-lateral is divided into a plurality of, also can obtain the action effect identical with the 1st embodiment.
Among above-mentioned the 3rd embodiment, also the 2nd variation with the 1st embodiment is identical, also the 2nd nozzle core 40 can be set ", but be wholely set with the nozzle resettlement section of nozzle body.
Figure 12 illustrates the 4th embodiment, and the gas passage is formed the part of separate paths, makes each gas separated path 41a～41d tilt to the liquid ejection outlet side.The sectional area of each gas separated path forms identical on the orthogonal direction of path axis direction.
Adopt above-mentioned formation, can make gas be ejected into the hydraulic fluid side at center, and further promote mixing of liquid and gas, realize the drop micronize from the jet of gas passage front end.
Figure 13 illustrates the 5th embodiment, and is different with the 1st～the 4th embodiment, is not to separate the gas passage in a circumferential direction, but forms the gas passage 410 of cross section annular.Specifically, the square tube portion 34 of the 1st nozzle core 30 among the 1st embodiment is in the 1st nozzle core 300 forms cylindrical portion 340, and outer peripheral face is formed the cross section circle.Thus, and be provided with the gas passage 410 of not separating in a circumferential direction between the inner peripheral surface of the cross section circle of the 2nd nozzle core 400.Other formations are identical with the 1st embodiment, thereby put on same numeral and omit explanation.
Among the 5th embodiment, make gas-water ratio less than 1000, be preferably 900～800.
Like this, form ring-type, also can be preferably 900～800 degree, reduce air capacity, suppress to stop up in the gas passage 410, and can reduce the noise that is taken place by making gas-water ratio less than 1000 even does not separate the gas passage.Other action effects are identical with the 1st embodiment, thereby omit explanation.
Figure 14 and Figure 15 illustrate the 6th embodiment, and the outer peripheral face of humidifier 60 is interval with the nozzle 50 of 4 the 1st embodiment every 90 degree.The structure that the structure of humidifier 60 forms with this case applicant's No. 2843970 communique of Japan Patent is a same structure.Among the figure, the 51st, the main body cover of humidifier 60, the 52nd, lid shell, the 53rd, feed tube for liquid, the 54th, gas supply pipe, the 55th, water storage room, the 56th, the float that the liquid measure in the water storage room is controlled, the 57th, suction hose, the 58th, gas passage, the 59th, fluid path.
In the above-mentioned humidifier 60, water in the water storage room 55 up is drawn in the fluid path 59 with suction hose 57, and flow into the described fluid path of above-mentioned the 1st embodiment of nozzle 50, gas then flow into the gas passage of nozzle 50 by gas passage 58, as the 1st embodiment is illustrated, from front end gas jet and the fluid-mixing of water of nozzle resettlement section 11-1, the 11-2 of configuration in opposite directions, above-mentioned fluid-mixing is collided mix, generation average grain diameter 10 μ m or following ultra micro mist.
[industrial applicibility]
Nozzle of the present invention can be assemblied in humidifier, air conditioner or cooling, inhibition dust, liquid cutting, thimerosal Or the used parts of the industrial uses such as spraying of fuel oil, be applicable to and need to carry out liquid spraying and not produce the machine of adhesional wetting.
[explanation of symbol]
The 1-nozzle body
The 2-adapter
The 3-nozzle core
The 4-stopper
The 11-branching portion
13-core resettlement section
30-the 1st nozzle core
34-square tube section
The 37-fluid path
40-the 2nd nozzle core
The 41-gas passage
The gas passage that 41a～41d-separates
The 42-inner peripheral surface
The 50-nozzle
The 60-humidifier
[translation in the accompanying drawing]
Fig. 1 air liquid
Fig. 2, Figure 13: gas A (compressed air) liquid Q (water)
Figure 16: maximum particle diameter; Gas-water ratio; The dry fog zone; Not susceptible to plugging zone; The easy zone of stopping up
Claims (14)
1, a kind of ultramicro atomization spray nozzle is characterized in that,
Outer circumferential side Jie at fluid path is provided with the gas passage with partition wall,
The gas passage that is communicated with jet,
The profile of the injection oral-lateral of described partition wall is formed section polygon, oblateness or oval-shaped abnormity, and the outer peripheral face of described gas passage forms the cross section circle, make the outer peripheral face butt of the special-shaped outer surface of described partition wall in a plurality of positions and this cross section circle, the gas passage of described ejection side is separated into a plurality of gas passages in a circumferential direction, perhaps
The outer surface of described partition wall is formed the cross section circle, and the outer peripheral face of the injection oral-lateral of described gas passage forms section polygon, oblateness or oval-shaped abnormity, with the outer peripheral face of described partition wall at a plurality of positions butt, the gas passage of described ejection side is separated into a plurality of gas passages in a circumferential direction
The periphery of the liquid that the gas that jet sprayed of a plurality of gas passages by making described separation and described fluid path are sprayed is mixed, and spraying takes place.
2, ultramicro atomization spray nozzle as claimed in claim 1 is characterized in that,
The jet of described fluid path is more outstanding than the jet of described gas passage, makes gas be injected into the periphery of the liquid that fluid path sprays from the jet of described gas passage, and both carry out external mix to make liquids and gases, and
Injection portion with described fluid path and gas passage is disposed in opposite directions by required interval and required angle, and make gas-liquid mixture fluid collide mixing each other in each injection portion external mix, the average grain diameter that makes drop is 1 μ m～10 mu m ranges, and maximum particle diameter is 50 μ m or following.
3, ultramicro atomization spray nozzle as claimed in claim 1 is characterized in that,
Described fluid path forms along the axle center of the 1st nozzle core in the core resettlement section that is embedded in nozzle body, forms described partition wall with the perisporium of the 1st nozzle core,
At the inner peripheral surface of the 1st nozzle core and described core resettlement section between the two, perhaps the 2nd nozzle core in being embedded in described core resettlement section and described the 1st nozzle core form described gas passage between the two, form the periphery wall of described gas passage with described core resettlement section or described the 2nd nozzle core.
4, ultramicro atomization spray nozzle as claimed in claim 1 is characterized in that,
It is long-pending that each sectional area of described a plurality of gas passages forms same cross-sectional, and
If the total sectional area of described a plurality of gas passages is that the sectional area of the described fluid path at S1, position that this gas passage surrounds is S2, then with S1: S2 is set at 5: 1～5: 2 scopes.
5, ultramicro atomization spray nozzle as claimed in claim 1 is characterized in that, make the liquid of supplying with described fluid path and supply gas path gas gas-water ratio (gas volume/liquid volume) less than 1000 but be 800 or more than.
6, ultramicro atomization spray nozzle as claimed in claim 1 is characterized in that, the inner peripheral surface of described a plurality of gas passages of separating or/and outer peripheral face be provided with fluororesin by rete.
7, ultramicro atomization spray nozzle as claimed in claim 2, it is characterized in that, the jet of described fluid path is than the outstanding 0.3～0.8mm of the jet of described gas passage, described its axis angulation of injection portion of configuration in opposite directions is set at 70 °～160 °, is set at 3～15mm from these each jets to the distance of colliding point.
8, ultramicro atomization spray nozzle as claimed in claim 2, it is characterized in that, described institute gas separated path forms roughly the same sectional area from the gas inflow side to gas ejection ports at axis direction, and form the progressively taper of undergauge from outstanding its periphery wall of fluid path of described gas ejection ports, and the jet inner circumferential surface of described fluid path forms the taper of progressively hole enlargement.
9, ultramicro atomization spray nozzle as claimed in claim 8, it is characterized in that, its cone angle of ejection side periphery wall of the fluid path at outstanding position is set in 15 °～40 ° scopes from described gas passage, and the cone angle of described liquid ejection outlet is set in 90 °～170 ° scopes.
10, ultramicro atomization spray nozzle as claimed in claim 3 is characterized in that, nozzle body and described nozzle core with described core resettlement section are formed by the fluorine resin injection mo(u)lding.
11, a kind of ultramicro atomization spray nozzle is characterized in that,
Outer circumferential side at fluid path is provided with the gas passage that has the resin portion that forms even surface at least at inner peripheral surface, the jet of described fluid path is than the outwards outstanding 0.3～0.8mm of the jet of described gas passage, form and make liquids and gases by the periphery that makes gas be ejected into the liquid that fluid path sprays both carry out the structure of external mix from the jet of described gas passage
Injection portion with described fluid path and gas passage is disposed in opposite directions, its axis angulation of the injection portion that this disposes in opposite directions is set at 70 °～160 °, be set at 3～15mm from above-mentioned each jet to the distance of colliding point, make gas-liquid mixture fluid collide mixing each other in each injection portion external mix, the average grain diameter that forms drop is at 1 μ m～10 mu m ranges, maximum particle diameter is 50 μ m or following
And make to supply with the liquid of described fluid path and supply gas path gas gas-water ratio (gas volume/liquid volume) less than 1000 but be 800 or more than.
12, ultramicro atomization spray nozzle as claimed in claim 11, it is characterized in that, the resin portion of the inner peripheral surface of described gas passage forms with fluororesin, and its cone angle of ejection side periphery wall of the fluid path at outstanding position is set in 15 °～40 ° scopes from this gas passage, and the cone angle of described liquid ejection outlet is set in 90 °～170 ° scopes.
13, a kind of ultramicro atomization spray nozzle installs parts additional, comprising: assembled air-conditioner, humidifier, cooler of ultramicro atomization spray nozzle as claimed in claim 1 etc.
14, a kind of ultramicro atomization spray nozzle installs parts additional, comprising: assembled air-conditioner, humidifier, cooler of ultramicro atomization spray nozzle as claimed in claim 11 etc.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200510079481 CN1879975A (en) | 2005-06-15 | 2005-06-15 | Ultramicro atomization spray nozzle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200510079481 CN1879975A (en) | 2005-06-15 | 2005-06-15 | Ultramicro atomization spray nozzle |
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| Publication Number | Publication Date |
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| CN1879975A true CN1879975A (en) | 2006-12-20 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200510079481 Pending CN1879975A (en) | 2005-06-15 | 2005-06-15 | Ultramicro atomization spray nozzle |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102226569A (en) * | 2011-06-03 | 2011-10-26 | 厦门水雾山环保科技有限公司 | Low-pressure nozzle for air conditioner |
| CN102513481A (en) * | 2011-12-13 | 2012-06-27 | 宁波腾工精密机械制造有限公司 | Lubricating and cooling jet nozzle for multi-station automatic cold header |
| CN105269392A (en) * | 2015-12-02 | 2016-01-27 | 四川明日宇航工业有限责任公司 | Oil-air mixing jetting, milling and lubricating system for titanium ally aviation structure part |
| CN105269393A (en) * | 2015-12-02 | 2016-01-27 | 四川明日宇航工业有限责任公司 | Oil and gas mixed injection milling and lubricating system for high-strength steel aeronautic structure parts |
| CN105345592A (en) * | 2015-12-02 | 2016-02-24 | 四川明日宇航工业有限责任公司 | Oil and gas mixed spraying, milling and lubricating system for aluminum alloy aerospace structure members |
| CN106005792A (en) * | 2016-07-18 | 2016-10-12 | 苏州大福外贸食品有限公司 | Container capable of achieving dry mist humidity control and fresh keeping of fruits and vegetables |
| CN103742121B (en) * | 2014-01-14 | 2017-01-25 | 新奥气化采煤有限公司 | underground gasification gas injection device and method |
| CN106984459A (en) * | 2016-01-20 | 2017-07-28 | 松下知识产权经营株式会社 | Sprayer unit |
| CN114682398A (en) * | 2022-04-21 | 2022-07-01 | 浙江工业大学台州研究院 | Square inner cavity nozzle with noise reduction function |
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2005
- 2005-06-15 CN CN 200510079481 patent/CN1879975A/en active Pending
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102226569A (en) * | 2011-06-03 | 2011-10-26 | 厦门水雾山环保科技有限公司 | Low-pressure nozzle for air conditioner |
| CN102226569B (en) * | 2011-06-03 | 2014-07-16 | 厦门水雾山环保科技有限公司 | Low-pressure nozzle for air conditioner |
| CN102513481A (en) * | 2011-12-13 | 2012-06-27 | 宁波腾工精密机械制造有限公司 | Lubricating and cooling jet nozzle for multi-station automatic cold header |
| CN102513481B (en) * | 2011-12-13 | 2014-09-17 | 宁波腾工精密机械制造有限公司 | Lubricating and cooling jet nozzle for multi-station automatic cold header |
| CN103742121B (en) * | 2014-01-14 | 2017-01-25 | 新奥气化采煤有限公司 | underground gasification gas injection device and method |
| CN105345592A (en) * | 2015-12-02 | 2016-02-24 | 四川明日宇航工业有限责任公司 | Oil and gas mixed spraying, milling and lubricating system for aluminum alloy aerospace structure members |
| CN105269393A (en) * | 2015-12-02 | 2016-01-27 | 四川明日宇航工业有限责任公司 | Oil and gas mixed injection milling and lubricating system for high-strength steel aeronautic structure parts |
| CN105269392A (en) * | 2015-12-02 | 2016-01-27 | 四川明日宇航工业有限责任公司 | Oil-air mixing jetting, milling and lubricating system for titanium ally aviation structure part |
| CN105345592B (en) * | 2015-12-02 | 2018-09-04 | 四川明日宇航工业有限责任公司 | Aluminium alloy aerospace component air-fuel mixture sprays milling lubricating system |
| CN106984459A (en) * | 2016-01-20 | 2017-07-28 | 松下知识产权经营株式会社 | Sprayer unit |
| CN106984459B (en) * | 2016-01-20 | 2018-12-21 | 松下知识产权经营株式会社 | Spraying device |
| CN106005792A (en) * | 2016-07-18 | 2016-10-12 | 苏州大福外贸食品有限公司 | Container capable of achieving dry mist humidity control and fresh keeping of fruits and vegetables |
| CN114682398A (en) * | 2022-04-21 | 2022-07-01 | 浙江工业大学台州研究院 | Square inner cavity nozzle with noise reduction function |
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Open date: 20061220 |