CN103406219A - Water atomization spraying rake - Google Patents
Water atomization spraying rake Download PDFInfo
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- CN103406219A CN103406219A CN2013102151603A CN201310215160A CN103406219A CN 103406219 A CN103406219 A CN 103406219A CN 2013102151603 A CN2013102151603 A CN 2013102151603A CN 201310215160 A CN201310215160 A CN 201310215160A CN 103406219 A CN103406219 A CN 103406219A
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Abstract
The invention relates to a water atomization spraying rake. The water atomization spraying rake comprises at least one spray nozzle, an air tube and a water tube, wherein air is conveyed by the air tube in the length direction of the water atomization spraying rake; at least one air supply branch tube extends out of the air tube, one end of each air supply branch tube is connected to the air tube, and the other end of each air supply branch tube is communicated with the spray nozzle so as to convey the air to the spray nozzle; water is conveyed by the water tube in the length direction of the water atomization spraying rake, at least one water supply branch tube extends out of the water tube, one end of each water supply branch tube is connected to the water tube, and the other end of each water supply branch tube is communicated with the spray nozzle so as to convey the water to the spray nozzle; the water supply branch tubes are coaxially arranged in the air supply branch tubes; the water tube and the air tube are coaxially arranged in the mode that the water tube is surrounded by the air tube.
Description
Technical field
The present invention relates to a kind of water atomization spraying rake, especially, the present invention relates to a kind of spraying rake that can produce water smoke in low temperature environment.
Background technology
In the Airworthiness Certification process of large-scale civilian carrier, regulation according to 25 ones 1093 (b) they (2) of CCAR (CCAR), the applicant need prove that the whirlpool engine that falls can work under defined terms in its whole flight power bracket, and on engine, parts of air intake system or airframe components, is not unfavorable for engine running or causes power or the ice of thrust heavy losses is assembled.Specifically, according to afore mentioned rules, every whirlpool engine that falls must be not less than 3 grams/rice at-9～-1 ℃, Liquid water content
3, water is under the atmospheric conditions of water droplet state (mean effective diameter is not less than 20 microns), carry out ground idle speed operation 30 minutes, the now bleed used of Engine Anti-Ice is in its critical condition, and has no adverse effect, and with take-off power, does of short duration running with rear engine.
The desired icing meteorological condition of above-mentioned seaworthiness condition is difficult to look at occurring in nature and obtains, and therefore need to provide a kind of ice-formation condition simulation system.
In order to simulate desired icing meteorological condition in the Airworthiness Certification process, in prior art, there is a kind of simulation system, this system comprises sprayer unit, water supply installation, compressed air source unit, air source apparatus and measure and control device.Sprayer unit comprises spraying rake, tracheae and the water pipe with nozzle, water supply installation and compressed air source unit respectively with tracheae and cross current, so that water and gas (as pressure-air) to be provided to nozzle, air source apparatus is simulated wind-tunnel, uniform and stable air stream is delivered to sprayer unit, and measure and control device is controlled the operation of whole simulation system.
Because the icing meteorological condition of simulating belongs to cryogenic conditions below freezing, therefore there is a kind of like this possibility, that is, before sprayer unit was by the water smoke ejection, the water droplet in water smoke froze.This icing phenomenon can affect the simulation to the weather environment that freezes.Particularly, the nozzle of sprayer unit is exposed under low temperature environment, thereby nozzle temperature is lower, when being used for forming the water process nozzle of water smoke, can experiencing the larger temperature difference, thereby further increase the possibility of freezing.
Therefore, for the ice-formation condition simulation system, need to prevent that the pipeline in sprayer unit from producing the larger temperature difference, avoiding on sprayer unit, the phenomenon of freezing especially occurs at the nozzle place.
Summary of the invention
Therefore, the present invention is based on above-mentioned the problems of the prior art and makes, its purpose is to provide a kind of spraying of water atomization for ice-formation condition simulation system rake, and this water atomization spraying rake can avoid occurring the phenomenon of freezing, and particularly can avoid at the nozzle place, occurring to freeze.
The present invention realizes above-mentioned purpose by a kind of water atomization spraying rake with following structure.This water atomization spraying rake comprises: at least one nozzle; Tracheae, this tracheae is carried air along the length direction of water atomization spraying rake, and at least one gas manifold extends from tracheae, and an end of gas manifold is connected in tracheae, and the other end of gas manifold is connected with nozzle, so that air is delivered to nozzle; And water pipe, this water pipe is carried water along the length direction of water atomization spraying rake, and at least one water supply arm extends from water pipe, and an end of water supply arm is connected in water pipe, and the other end of water supply arm is connected with nozzle, so that water is delivered to nozzle; Wherein, in the present invention, the arm that supplies water at least is arranged among gas manifold coaxially.
Preferably, water pipe and tracheae also can arrange coaxially, thereby tracheae surrounds water pipe.
By the spraying rake of said structure, in the water supply air feed path in water supply arm and gas manifold scope, the air feed path surrounds for water passage at least, thereby, for the water extraction of carrying for water passage supplies insulation, also can the shower nozzle of nozzle be heated simultaneously.Thus, the phenomenon of freezing occurs in the rake of can avoiding spraying under the icing meteorological condition of simulation.
In spraying rake of the present invention, the structure of nozzle comprises: nozzle body, this nozzle body comprises two coaxial tubular structures, two coaxial tubular structures limit central passage and surround coaxially the circular passage of central passage, central passage is connected with the water supply arm, and circular passage is connected with gas manifold; And shower nozzle, this shower nozzle is being provided with centre bore and around the annular converging passageway of centre bore near a side place of nozzle body, and be provided with spray orifice in the side away from nozzle body, the annular converging passageway is the form of convergent towards the direction of spray orifice, wherein, centre bore is connected with central passage, and annular converging passageway is connected with circular passage.
In such nozzle arrangements, annular converging passageway has the effect of assembling gas flow, thus the gas flow that makes to flow out annular converging passageway before entering spray orifice, assemble, and also can mix mutually with the current that flow out centre bore.
Like this, for spraying of the present invention rake, in the water supply air feed path before the spray orifice of nozzle, the air feed path can surround all the time for water passage, thereby provides better insulation effect for current.
Alternatively, water atomization spraying rake of the present invention also includes insulation material.This insulation material surrounds water pipe and tracheae, to play insulation effect.
Water atomization spraying rake of the present invention can comprise the guiding device that is aerofoil profile enveloping surface shape, in this guiding device to major general's insulation material, tracheae and water pipe is enclosed in.
Further, water atomization spraying rake structure of the present invention also can be applicable to the water atomization spraying rake of segmented water supply air feed form.
The accompanying drawing explanation
Fig. 1 is the stereogram of water atomization spraying rake of the present invention.
Fig. 2 is the piping arrangement of water atomization spraying rake of the present invention, wherein, the guiding device of this spraying rake and heat-insulation layer is removed to the pipeline of being arranged to clearly show wherein.
Fig. 3 is the cross-sectional view along the water atomization spraying rake of the present invention of the intercepting of the line A-A in Fig. 1.
The specific embodiment
Below, with reference to the accompanying drawing of specification, specific embodiments of the invention are described.Just the preferred embodiment of the present invention shown in accompanying drawing, the technical staff in association area can make various equivalent transformations to details wherein, and these equivalent transformations are equally within protection domain of the presently claimed invention.
Fig. 1 shows the stereogram of water atomization spraying rake 1 of the present invention.As can see from Figure 1, the outer surface of spraying rake 1 forms the aerofoil profile envelope surface, forms guiding device 3 by this aerofoil profile envelope surface.This guiding device 3 makes to flow through the steady air current of this spraying rake 1.A plurality of nozzles 2 are from stretching out the body of spraying rake 1.
In Fig. 2, schematically show the line arrangement of spraying rake 1.In the present invention, water pipe 5(is shown in to Fig. 3) be arranged in coaxially among tracheae 4, therefore, in Fig. 2, only have tracheae 4 visible.Tracheae 4 is connected with not shown compressed air source unit, and extends along the length direction of spraying rake 1, thereby transports the gas from compressed air source unit along the length direction of spraying rake 1, and this gas can be preferably gases at high pressure.At least one gas manifold 41 stretches out from tracheae 4.A plurality of gas manifolds 41 have been shown in Fig. 2 and from tracheae 4, have stretched out, an end of these gas manifolds 41 is connected on tracheae 4, and the other end is connected with nozzle 2.
Similarly, the water pipe 5 be arranged on coaxially in tracheae 4 is connected with not shown water supply installation, and also along the length direction extension of spraying rake 1, the length direction of rake 1 transports the water of self-water-supplying device thereby spray in edge.The water of supplying can be for example purified water.At least one water supply arm 51(is shown in Fig. 3) from water pipe 5, stretch out, and should among the gas manifold 41 of a correspondence, extend coaxially by water supply arm 51.Thus, this water supply arm 51 together is connected on same nozzle 2 with its corresponding gas manifold 41.
Forward now Fig. 3 to.Fig. 3 is the sectional view of the spraying rake 1 that intercepts along the line A-A in Fig. 1, wherein clearly showing the internal structure of spraying rake 1.
As shown in Figure 3, the outer surface of spraying rake 1 forms the aerofoil profile enveloping surface, to form guiding device 3.Tracheae 4 and water pipe 5 are arranged on the inside of spraying rake 1.In addition, also be provided with alternatively support frame 7 in the inside of spraying rake 1, for further strengthening the intensity of spraying rake 1.In spraying rake 1, also be filled with insulation material 6, this insulation material 6 surrounds tracheae 4 and water pipe 5, is incubated with gas and the water that tracheae 4 and water pipe 5 are carried.
Below, gas set in spraying rake 1 and the circulation path of water are elaborated.It should be noted that, the spraying rake 1 in Fig. 3 is the form of two-part water supply air feed, therefore in sectional view shown in Figure 3, shows two tracheaes and two water pipes.At this, we only are elaborated to one group of tracheae and water pipe.
Such as already mentioned previously, in Fig. 3, clearly illustrate, water pipe 5 is arranged among corresponding tracheae 4 coaxially, that is and, tracheae 4 surrounds water pipe 5.Among the water supply arm 51 stretched out water pipe 5 is arranged on the gas manifold 41 of the correspondence of stretching out from tracheae 4 coaxially.At gas manifold 41 and water supply arm 51, be provided with nozzle 2 away from an end place of tracheae 4 and water pipe 5.Nozzle 2 comprises nozzle body 21 and shower nozzle 22.Nozzle body 21 consists of two coaxial tubular structures, thereby in nozzle body 21, forms central passage 23 and surround coaxially the circular passage 24 of this central passage 23.Wherein, water supply arm 41 can insert in central passage 23, or otherwise the water supply arm is connected with central passage.Correspondingly, 24 of the circular passages in nozzle body 21 are connected with gas manifold 41.
One end of shower nozzle 22 is provided with centre bore 25, and the other end is provided with spray orifice 27.One end of centre bore 25 is connected with the central passage 23 of nozzle body 21, and the other end is connected with spray orifice 27.Around centre bore 25, be provided with ring-type converging passageway 26, these ring-type converging passageway 26 1 ends are connected with the circular passage 24 of nozzle body 21, the other end is towards the direction convergent of spray orifice 27, thereby make pressure-air and water mixed before entering spray orifice 27, and, together from spray orifice 27 ejections, realize thus the water sprayed is carried out the effect of atomization.
By above-described line arrangement, the centre bore 25 in the central passage 23 from the current of water supply installation in the nozzle body 21 of water pipe 5, water supply arm 51, nozzle 2 and the shower nozzle 22 of nozzle 2; And from the circular passage 24 of gas flow in the nozzle body 21 of tracheae 4, gas manifold 41 and nozzle 2 of compressed air source unit, subsequently, the effect by the ring-type converging passageway 26 in the shower nozzle 22 of nozzle 2 can coalescence mix gas flow with the water that leaves centre bore 25 before entering spray orifice 27.Finally, the gas flow mixed and current are from spray orifice 27 ejections shower nozzle 22.
Can see, from compressed air source unit and water supply installation, start until before entering the spray orifice 27 of nozzle 2, path for delivery of gas surrounds the path for delivery of water all the time, thereby the gas in the air feed path can be used as thermal source, the water in water passage is incubated.Especially, because the shower nozzle of nozzle, particularly nozzle is exposed under the icing meteorological condition of simulating, therefore more obvious in the gas heat insulating effect of this position.
Above specific embodiments of the invention are described, and those skilled in the art can carry out apparent modification to the present invention on the basis of this specific embodiment, and within such modification drops on protection scope of the present invention equally.
For example, in above-mentioned specific embodiment, from water pipe, centre bore and the ring-type converging passageway of tracheae up to shower nozzle, the air feed path surrounds all the time for water passage, so that water is surrounded.But, as shown in Figure 3, owing in the spraying rake, being provided with insulation material 6 to surround this water pipe and tracheae.In the case, water pipe and tracheae can arrange coaxially.
Shown in accompanying drawing of the present invention, it is being the spraying rake of two-part water supply air feed form.But this spraying rake is not segmented yet,, includes only one group of tracheae and water pipe that is.On the other hand, the spraying rake that this spraying rake can be the multisection type water supply air feed form more than two sections, namely can comprise two groups of above tracheae and water pipes.
Claims (7)
1. a water atomization spraying is harrowed, and described water atomization spraying rake comprises:
At least one nozzle;
Tracheae, described tracheae is carried air along the length direction of described water atomization spraying rake, at least one gas manifold extends from described tracheae, one end of described gas manifold is connected in described tracheae, the other end of described gas manifold is connected with described nozzle, so that described air is delivered to described nozzle; And
Water pipe, described water pipe is carried water along the length direction of described water atomization spraying rake, and at least one water supply arm extends from described water pipe, and an end of described water supply arm is connected in described water pipe, the other end of described water supply arm is connected with described nozzle, so that described water is delivered to described nozzle;
It is characterized in that, described water supply arm is arranged among described gas manifold coaxially.
2. water atomization spraying rake as claimed in claim 1, is characterized in that, is arranged among described tracheae described water pipe coaxial.
3. water atomization spraying rake as claimed in claim 1, is characterized in that, described nozzle comprises:
Nozzle body, described nozzle body comprises two coaxial tubular structures, described two coaxial tubular structures limit central passage and surround coaxially the circular passage of described central passage, described central passage is connected with described water supply arm, and described circular passage is connected with described gas manifold; And
Shower nozzle, described shower nozzle is being provided with centre bore and around the annular converging passageway of described centre bore near a side place of described nozzle body, and be provided with spray orifice in the side away from described nozzle body, described annular converging passageway is the form of convergent towards the direction of described spray orifice, wherein, described centre bore is connected with described central passage, and described annular converging passageway is connected with described circular passage.
4. water atomization spraying rake as claimed in claim 3, is characterized in that, under the effect of described annular converging passageway, the gas flow that flows out described annular converging passageway can coalescence mix with the current that flow out described centre bore mutually before entering described spray orifice.
5. water atomization spraying rake as claimed in claim 1, is characterized in that, described water atomization spraying rake also comprises that insulation material, described insulation material surround described water pipe and described tracheae.
6. water atomization spraying rake as claimed in claim 5, is characterized in that, described water atomization spraying rake also comprises guiding device, and described guiding device is the shape of aerofoil profile enveloping surface, and in to the described insulation material of major general, described tracheae and described water pipe, being enclosed in.
7. water atomization spraying rake as claimed in claim 1, is characterized in that, the water atomization spraying rake that described water atomization spraying rake is segmented water supply air feed form.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310215160.3A CN103406219B (en) | 2013-05-31 | 2013-05-31 | A kind of water atomization spraying rake |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310215160.3A CN103406219B (en) | 2013-05-31 | 2013-05-31 | A kind of water atomization spraying rake |
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| CN103406219A true CN103406219A (en) | 2013-11-27 |
| CN103406219B CN103406219B (en) | 2016-08-24 |
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| CN201310215160.3A Active CN103406219B (en) | 2013-05-31 | 2013-05-31 | A kind of water atomization spraying rake |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109876936A (en) * | 2014-02-21 | 2019-06-14 | 纽勤公司 | Liquid dispenser, nozzle assembly and its assembling and application method |
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| JP2003135619A (en) * | 2001-11-01 | 2003-05-13 | Mitsubishi Heavy Ind Ltd | Two-fluid fixed fire extinguishing device |
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| CN201684687U (en) * | 2009-12-15 | 2010-12-29 | 重庆典绿科技发展有限公司 | Low-temperature frost-prevention spraying system |
| CN102085452A (en) * | 2010-11-29 | 2011-06-08 | 中国环境科学研究院 | Reducing agent atomization spray gun for selective non-catalytic reduction denitration process |
| CN102914416A (en) * | 2012-09-20 | 2013-02-06 | 同济大学 | Direct-cooling freezing wind tunnel realization method and direct-cooling freezing wind tunnel realization system |
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2013
- 2013-05-31 CN CN201310215160.3A patent/CN103406219B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003135619A (en) * | 2001-11-01 | 2003-05-13 | Mitsubishi Heavy Ind Ltd | Two-fluid fixed fire extinguishing device |
| CN201135939Y (en) * | 2007-12-12 | 2008-10-22 | 珠海格力电器股份有限公司 | Spraying, snow falling device for environmental simulation |
| CN101491794A (en) * | 2009-01-08 | 2009-07-29 | 浙江大学 | High-speed jet gas-liquid mixing-phase ejector |
| CN201684687U (en) * | 2009-12-15 | 2010-12-29 | 重庆典绿科技发展有限公司 | Low-temperature frost-prevention spraying system |
| CN102085452A (en) * | 2010-11-29 | 2011-06-08 | 中国环境科学研究院 | Reducing agent atomization spray gun for selective non-catalytic reduction denitration process |
| CN102914416A (en) * | 2012-09-20 | 2013-02-06 | 同济大学 | Direct-cooling freezing wind tunnel realization method and direct-cooling freezing wind tunnel realization system |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109876936A (en) * | 2014-02-21 | 2019-06-14 | 纽勤公司 | Liquid dispenser, nozzle assembly and its assembling and application method |
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| CN103406219B (en) | 2016-08-24 |
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