CN104437914A - Atomizing device for space spray coating - Google Patents
Atomizing device for space spray coating Download PDFInfo
- Publication number
- CN104437914A CN104437914A CN201410681910.0A CN201410681910A CN104437914A CN 104437914 A CN104437914 A CN 104437914A CN 201410681910 A CN201410681910 A CN 201410681910A CN 104437914 A CN104437914 A CN 104437914A
- Authority
- CN
- China
- Prior art keywords
- eddy flow
- section
- rotational flow
- core
- atomising device
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B1/00—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means
- B05B1/34—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to influence the nature of flow of the liquid or other fluent material, e.g. to produce swirl
- B05B1/3405—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to influence the nature of flow of the liquid or other fluent material, e.g. to produce swirl to produce swirl
Landscapes
- Nozzles (AREA)
Abstract
An atomizing device for space spray coating comprises a rotational flow cavity (1) and a rotational flow chip (2). The rotational flow cavity (1) comprises an inlet section (3), a convergence section (4) and an outlet section (5). The body of the rotational flow chip (2) is cylindrical. A central hole passageway (6) and four spiral guide passageways (7) arranged on the periphery of the central hole passageway (6) at equal intervals are arranged on the cylindrical rotational flow chip (2). The rotational flow chip (2) is arranged on the innermost side, namely, the position close to the convergence section, of the inlet section in the rotational flow cavity (1). The rotational flow cavity (1) and the rotational flow chip (2) are connected and fixed through interference fit.
Description
Technical field
The present invention relates to a kind of nozzle atomization device for space liquid spray, be applicable to, in-orbit to star catalogue equipment spraying liquid material, realize the improved properties to star catalogue equipment.
Background technology
Along with the development of satellite service technology in-orbit, assemble in-orbit, build in-orbit and will become a reality.The spacecraft assemble in-orbit, constructed in-orbit has the requirement of temperature thermal control for star catalogue.At present, all thermal control coatings of satellite equipment are all require to develop on ground according to its thickness, radiation/reflection characteristic and the adaptability to vacuum environment, spray, after film-forming, device assembles launched again and enter the orbit.And for the spacecraft assembled in-orbit, build in-orbit, then need in-orbit to star catalogue spraying thermal control coating.Outside assembling in-orbit, in-orbit structure, space spraying also can be used for extending the lifetime of satellite.Such as certain star catalogue thermal control coating or other equipment coatings performance degradation under the effect of long-term alternating hot and cold, ultra-violet radiation and particle radiation is more obvious creates remarkable impact to satellite overall performance, now spray corresponding thermal control coating by space, and make its of film-forming by component design, then within a short period of time greatly can extend the life-span of satellite.The application of above-mentioned space all needs for the specific heat control material of star catalogue even application, environmental protection material, thus makes star catalogue have corresponding thermal control and environmental protection function.
Suitable atomizing type is the key element of implementation space paint application, the specific environment for use requirement of demand fulfillment, as used special fluent material, working under space vacuum condition, needing to possess larger spraying divergence angle degree and the uniform atomizing effect etc. of excellence.
Atomizing type conventional at present mainly comprises the modes such as ultrasonic atomizatio, compression atomizing, jet atomization and mechanical impact atomization.Ultrasonic atomizatio and compression atomizing need, to nozzle transporting compressed gas body to drive atomized drop directed movement, easily to produce " gas explosion " problem in a vacuum.Jet atomization cannot be applied in a vacuum.Therefore, mechanical impact atomizing type is adopted to be the major way applied under space vacuum environment.
The bleed type of conventional mechanical impact atomizing type mainly contains simple nozzle, rotarytype injector and tapered spiral nozzle.Simple nozzle is the aperture with certain draw ratio, and primarily of entrance and converging portion composition, the difference according to converging portion shape can be divided into column type, tapered, parabolic type etc., although its atomization is comparatively even, spraying divergence angle degree is less.The core of rotarytype injector is swirler and vortex chamber, the tangential slot of liquid swirler in nozzle tangentially enters vortex chamber in direction, in vortex chamber, one side High Rotation Speed is while motion of spinning, also under the influence of centrifugal force from outlet ejection after convergent passage is accelerated, rotarytype injector has larger angle of flare, but sprays the annular atomizing effect that rear center region can form cavity.Tapered spiral nozzle is configured as gradually little multiturn helix structure, different layers cone jet face streamline is different from the angle (helical angle) in spray assembly axle center, and angle successively reduces, thus the concentric circles with uniform distances can be formed in atomization face, atomization face is generally made up of 2 ~ 4 interconnective concentric atomization circles, tapered spiral nozzle easily obtains larger spraying divergence angle, but atomization face is uneven, and hollow, beam splitting phenomenon are obvious.
Summary of the invention
Technology of the present invention is dealt with problems and is: overcome the deficiencies in the prior art, provides the nozzle atomization device that a kind of space sprays.
Technical solution of the present invention is: the atomising device of a kind of space spraying, comprises eddy flow chamber and eddy flow core; Described eddy flow chamber comprises inducer, converging portion, outlet section, and eddy flow core main body is column type, and cylinder arranges equally spaced four the spiral guide flow passage of a centre bore runner and periphery; Eddy flow core is installed on the most inboard namely near converging portion position of the inner inducer in eddy flow chamber, is connected and fixed between eddy flow chamber and eddy flow core by interference fit.
Described inducer and outlet section are column type, and converging portion is conical.
Be obliquely installed between the entrance of described spiral guide flow passage and cylinder axis.
Range of tilt angles is 22 ° ~ 26 °.
Described spiral guide flow passage cross section is that class is trapezoidal, and namely the bottom and upper segment in cross section is arc section, and dual-side is straightway, and two arc sections have the same center of circle.
The present invention compared with prior art beneficial effect is:
(1) function of this spray nozzle device is under the constraint of device geometry, the pressure energy of highly pressurised liquid is gathered together, and be converted into the kinetic energy of liquid, by the multiple impact of the inner wall of liquid and device, broken atomization occurs, finally speed as requested, angle of flare, flow externally spray in space with the form of high-velocity liquid jet simultaneously.
The Main Function in eddy flow chamber is the kinetic energy pressure energy of liquid being converted into liquid, simultaneously for fragmentation atomization provides geometrical condition.Eddy flow core is except increasing liquid kinetic energy and realizing, except the broken atomizing of liquid, also having following effect: eddy flow core centre bore runner ensures the uniform atomizing effect of Liquid inject central area; The peripheral spiral guide flow passage of eddy flow core ensures the uniform atomizing effect of Liquid inject circumferential zones (circle ring area except central area), ensures required liquid spray atomizing angle of flare simultaneously.
(2) index parameters such as the spray nozzle device spraying divergence angle in the present invention, jet velocity (or flow) can design according to the actual requirements, design have very strong flexibility.
(3) atomization method in the present invention has excellent uniform atomizing effect.
(4) fluent material in the present invention can form certain atomization diffusion angle after spray nozzle device ejection.
(5), under the atomization method in the present invention both can be operated in space vacuum environment, under surface air environment can being operated in again, the scope of application of this atomization method is expanded.
Accompanying drawing explanation
Fig. 1 is spray nozzle device configuration schematic diagram of the present invention;
Fig. 2 is spray nozzle device generalized section of the present invention.
Detailed description of the invention
As shown in Figure 1 and Figure 2, for the structure composition diagram of spray nozzle device of the present invention, one end of spray nozzle device is side, liquid inlet, and the other end is liquid outlet side, comprise: eddy flow chamber 1 and eddy flow core 2, eddy flow chamber 1 forms primarily of three parts: inducer 3, converging portion 4, outlet section 5.Eddy flow core 2 mainly comprises equally spaced four the spiral guide flow passage 7 of a centre bore runner 6 and periphery.Eddy flow core 2 is installed on the most inboard (near converging portion 4) of the inner inducer in eddy flow chamber 1, is connected and fixed between eddy flow chamber 1 and eddy flow core 2 by interference fit.
Inducer 3 and the outlet section 5 in eddy flow chamber 1 are column type, and converging portion 4 is pyramid type, and cross section is circle.The Main Function in eddy flow chamber 1 pressure energy of liquid to be atomized is converted into the kinetic energy of liquid and provides geometrical condition for the fragmentation atomization of liquid.Wherein, the accelerator of liquid mainly completes in converging portion 4.Eddy flow core 2 is column type, a centre bore runner 6 has been opened in cylindrical center, cylinder peripheral has opened four spiral guide flow passage 7, centre bore runner 6 cross section is circular, the entrance of spiral guide flow passage 7 and spray nozzle device axis direction are certain angle of inclination, cross section is that class is trapezoidal, and namely the bottom and upper segment in cross section is arc section (having the same center of circle), and dual-side is straightway.Increase runner inclination angle and can increase the tangential velocity of fluid, be conducive to improving spraying divergence angle, but runner inclination angle is crossed conference and caused atomization face uneven.Runner inclination angle is too small, is unfavorable for improving spraying divergence angle.This routine medium dip angular range is 22 ° ~ 26 °.
The Main Function of eddy flow core centre bore runner 6 is the uniform atomizing effects ensureing Liquid inject central area on the basis increasing liquid kinetic energy and realize liquid crushing atomization.The Main Function of the peripheral spiral guide flow passage 7 of eddy flow core is the uniform atomizing effects ensureing Liquid inject circumferential zones (circle ring area except central area) on the basis increasing liquid kinetic energy and realize liquid crushing atomization, ensures required Liquid inject angle of flare simultaneously.The power source promoting fluent material flowing can be priming system device, also can be high-pressure air source.
Said nozzle device is made up of metal material.Fluent material to be atomized can be a kind of solid-liquid composite material, and solid material has the features such as low-density, fine particle size, large surface-active, and liquid adjuvants material has the feature such as high viscosity, low-density.According to foregoing description, the preferred structural parameters of this device are as following table:
| Primary structure | Concrete scheme |
| The length of inducer 3 | 12mm |
| The diameter of centre bore runner 6 | 2mm |
| The external diameter of eddy flow core 2 | 12mm |
| The length of eddy flow core 2 | 5mm |
| The inclination angle of spiral guide flow passage 7 | 24° |
| The length of converging portion 4 | 5mm |
| The diameter of outlet section 3 | 8mm |
| The length of outlet section 5 | 5mm |
The concrete atomization course of work of spray nozzle device is as follows:
(1) fluent material enters spray nozzle device inside (eddy flow chamber is inner) with certain speed from eddy flow chamber entrance under the effect of certain power source.
(2) two parts have been divided into when fluent material arrives eddy flow core: a part is in the axial direction by eddy flow core centre bore runner, another part enters the spiral guide flow passage of eddy flow core periphery, due to the geometrical constraint effect of eddy flow core spiral guide flow passage and eddy flow cavity wall, fluent material possess simultaneously in axial direction with the velocity component of tangential direction.Fluent material achieves the increase of kinetic energy at eddy flow core inner, and by there is broken atomization with the multiple impact of eddy flow core inner wall.
(3) after two parts fluent material flows out the runner of eddy flow core, namely reach eddy flow chamber converging portion, fluent material accelerates further and broken atomization in converging portion.
(4) fluent material flows out eddy flow chamber converging portion arrival outlet section, and from the ejection of eddy flow chamber outlet section, defines and have certain diffusion angle and the atomization face presenting uniform atomizing jeting effect.
The unspecified part of the present invention belongs to general knowledge as well known to those skilled in the art.
Claims (5)
1. an atomising device for space spraying, is characterized in that: comprise eddy flow chamber (1) and eddy flow core (2); Described eddy flow chamber (1) comprises inducer (3), converging portion (4), outlet section (5), eddy flow core (2) main body is column type, and cylinder arranges equally spaced four the spiral guide flow passage (7) of a centre bore runner (6) and periphery; Eddy flow core (2) is installed on the most inboard namely near converging portion position of eddy flow chamber (1) inner inducer, is connected and fixed between eddy flow chamber (1) and eddy flow core (2) by interference fit.
2. the atomising device of a kind of space spraying according to claim 1, is characterized in that: described inducer (3) and outlet section (5) are column type, and converging portion (4) is conical.
3. the atomising device of a kind of space spraying according to claim 1, is characterized in that: be obliquely installed between the entrance of described spiral guide flow passage (7) and cylinder axis.
4. the atomising device of a kind of space spraying according to claim 3, is characterized in that: range of tilt angles is 22 ° ~ 26 °.
5. the atomising device of a kind of space spraying according to claim 1 or 3, it is characterized in that: described spiral guide flow passage (7) cross section is that class is trapezoidal, namely the bottom and upper segment in cross section is arc section, and dual-side is straightway, and two arc sections have the same center of circle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410681910.0A CN104437914A (en) | 2014-11-24 | 2014-11-24 | Atomizing device for space spray coating |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410681910.0A CN104437914A (en) | 2014-11-24 | 2014-11-24 | Atomizing device for space spray coating |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104437914A true CN104437914A (en) | 2015-03-25 |
Family
ID=52885117
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410681910.0A Pending CN104437914A (en) | 2014-11-24 | 2014-11-24 | Atomizing device for space spray coating |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104437914A (en) |
Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104759369A (en) * | 2015-03-26 | 2015-07-08 | 成都来宝石油设备有限公司 | Steam atomizer |
| CN104759366A (en) * | 2015-03-26 | 2015-07-08 | 成都来宝石油设备有限公司 | Cyclone atomizing nozzle |
| CN105921300A (en) * | 2016-07-05 | 2016-09-07 | 上海核工程研究设计院 | Spiral-flow type atomizer |
| CN106000690A (en) * | 2016-07-28 | 2016-10-12 | 江门市霏尼格斯淋浴制品科技有限公司 | Shower head structure |
| CN106140742A (en) * | 2016-08-29 | 2016-11-23 | 潍柴动力股份有限公司 | A kind of eddy current purging device for pipeline |
| CN107008582A (en) * | 2017-05-17 | 2017-08-04 | 大同煤矿集团有限责任公司 | Anti- stifled easy cleaning dust prevention sprinkler |
| CN108296033A (en) * | 2016-09-28 | 2018-07-20 | 洛阳德明石化设备有限公司 | A kind of method and apparatus of on-line tuning spray angle of nozzle |
| CN110076019A (en) * | 2019-05-28 | 2019-08-02 | 宁波杰敏卫浴科技有限公司 | Flow regulator |
| CN110124893A (en) * | 2019-05-24 | 2019-08-16 | 广州大学 | A kind of jetstream whirl nozzle arrangements and spraying device |
| CN110314776A (en) * | 2019-08-02 | 2019-10-11 | 中国人民解放军96771部队 | One kind can self-cleaning spray head |
| CN110465418A (en) * | 2019-09-03 | 2019-11-19 | 镇江市长江机电设备厂有限公司 | It is a kind of for being atomized the atomizer of oil purifier |
| CN110573261A (en) * | 2017-04-10 | 2019-12-13 | 天幸星科技有限公司 | fuel atomizer and method for atomizing fuel |
| CN111042735A (en) * | 2018-10-15 | 2020-04-21 | 西南石油大学 | Cut-in type direct-rotation mixed jet flow self-advancing nozzle |
| WO2021147658A1 (en) * | 2020-01-22 | 2021-07-29 | 柯敏兴 | Device for controlling shape in which liquid is discharged |
| CN117000493A (en) * | 2023-10-08 | 2023-11-07 | 江苏弗林特机电科技有限公司 | Automatic plate spraying device |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10165845A (en) * | 1996-12-10 | 1998-06-23 | Asahi Sanac Kk | Spray nozzle for high viscosity paint |
| JP2003190843A (en) * | 2001-12-26 | 2003-07-08 | Honda Motor Co Ltd | Spray nozzle |
| CN201755540U (en) * | 2010-07-28 | 2011-03-09 | 江苏武南玻璃钢有限公司 | Built-in atomization spiral piece of spray nozzle |
| CN201832732U (en) * | 2010-07-28 | 2011-05-18 | 江苏武南玻璃钢有限公司 | Helical guide spray head |
| CN202290372U (en) * | 2011-10-11 | 2012-07-04 | 浙江工业大学 | Low-voltage rotational-flow atomizing nozzle |
| CN203737451U (en) * | 2014-01-16 | 2014-07-30 | 昆明理工大学 | Swirl nozzle with spiral groove |
-
2014
- 2014-11-24 CN CN201410681910.0A patent/CN104437914A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10165845A (en) * | 1996-12-10 | 1998-06-23 | Asahi Sanac Kk | Spray nozzle for high viscosity paint |
| JP2003190843A (en) * | 2001-12-26 | 2003-07-08 | Honda Motor Co Ltd | Spray nozzle |
| CN201755540U (en) * | 2010-07-28 | 2011-03-09 | 江苏武南玻璃钢有限公司 | Built-in atomization spiral piece of spray nozzle |
| CN201832732U (en) * | 2010-07-28 | 2011-05-18 | 江苏武南玻璃钢有限公司 | Helical guide spray head |
| CN202290372U (en) * | 2011-10-11 | 2012-07-04 | 浙江工业大学 | Low-voltage rotational-flow atomizing nozzle |
| CN203737451U (en) * | 2014-01-16 | 2014-07-30 | 昆明理工大学 | Swirl nozzle with spiral groove |
Cited By (21)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104759369B (en) * | 2015-03-26 | 2018-10-30 | 成都知融智创知识产权运营有限公司 | A kind of steam atomization nozzle |
| CN104759366A (en) * | 2015-03-26 | 2015-07-08 | 成都来宝石油设备有限公司 | Cyclone atomizing nozzle |
| CN104759369A (en) * | 2015-03-26 | 2015-07-08 | 成都来宝石油设备有限公司 | Steam atomizer |
| CN105921300A (en) * | 2016-07-05 | 2016-09-07 | 上海核工程研究设计院 | Spiral-flow type atomizer |
| CN106000690A (en) * | 2016-07-28 | 2016-10-12 | 江门市霏尼格斯淋浴制品科技有限公司 | Shower head structure |
| CN106000690B (en) * | 2016-07-28 | 2019-01-04 | 广东瑞霖智能卫浴创新研究有限公司 | A kind of shower header structure |
| CN106140742B (en) * | 2016-08-29 | 2019-07-30 | 潍柴动力股份有限公司 | A kind of vortex purging device for pipeline |
| CN106140742A (en) * | 2016-08-29 | 2016-11-23 | 潍柴动力股份有限公司 | A kind of eddy current purging device for pipeline |
| CN108296033A (en) * | 2016-09-28 | 2018-07-20 | 洛阳德明石化设备有限公司 | A kind of method and apparatus of on-line tuning spray angle of nozzle |
| CN108296033B (en) * | 2016-09-28 | 2024-03-22 | 洛阳德明石化设备有限公司 | Method and equipment for online adjustment of spray angle of nozzle |
| CN110573261A (en) * | 2017-04-10 | 2019-12-13 | 天幸星科技有限公司 | fuel atomizer and method for atomizing fuel |
| CN107008582A (en) * | 2017-05-17 | 2017-08-04 | 大同煤矿集团有限责任公司 | Anti- stifled easy cleaning dust prevention sprinkler |
| CN107008582B (en) * | 2017-05-17 | 2023-09-05 | 晋能控股煤业集团有限公司 | Anti-blocking easy-cleaning dustproof spray head |
| CN111042735A (en) * | 2018-10-15 | 2020-04-21 | 西南石油大学 | Cut-in type direct-rotation mixed jet flow self-advancing nozzle |
| CN110124893A (en) * | 2019-05-24 | 2019-08-16 | 广州大学 | A kind of jetstream whirl nozzle arrangements and spraying device |
| CN110076019A (en) * | 2019-05-28 | 2019-08-02 | 宁波杰敏卫浴科技有限公司 | Flow regulator |
| CN110314776A (en) * | 2019-08-02 | 2019-10-11 | 中国人民解放军96771部队 | One kind can self-cleaning spray head |
| CN110465418A (en) * | 2019-09-03 | 2019-11-19 | 镇江市长江机电设备厂有限公司 | It is a kind of for being atomized the atomizer of oil purifier |
| WO2021147658A1 (en) * | 2020-01-22 | 2021-07-29 | 柯敏兴 | Device for controlling shape in which liquid is discharged |
| CN117000493A (en) * | 2023-10-08 | 2023-11-07 | 江苏弗林特机电科技有限公司 | Automatic plate spraying device |
| CN117000493B (en) * | 2023-10-08 | 2023-12-19 | 江苏弗林特机电科技有限公司 | Automatic plate spraying device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104437914A (en) | Atomizing device for space spray coating | |
| US20180290160A1 (en) | Pressurized air assisted full cone spray nozzle assembly | |
| CN105722601B (en) | Efficiently/low pressure catalytic cracking spray nozzle assemblies | |
| CN107120210B (en) | Supersonic jet pipe | |
| CN110500201B (en) | Head structure of inclined groove type pintle injector | |
| US9284933B2 (en) | Fuel nozzle with discrete jet inner air swirler | |
| CN109339975B (en) | Stealth exhaust pipe with adjustable conical cavity | |
| US20180195728A1 (en) | Fuel injector | |
| US6024301A (en) | Low NOx liquid fuel oil atomizer spray plate and fabrication method thereof | |
| CN106762218A (en) | A kind of method and jet pipe for improving pulse detonation engine thrust coefficient | |
| CN106801649A (en) | A kind of plug axisymmetric nozzle | |
| US20200122184A1 (en) | Low-frequency ultrasonic atomizing device having large atomization quantity | |
| US20090256010A1 (en) | Cold gas-dynamic spray nozzle | |
| EP2593273B1 (en) | Air gun | |
| CN110976120B (en) | Centrifugal paint nozzle for accelerating atomization by reverse airflow | |
| US4261517A (en) | Atomizing air metering nozzle | |
| CN103405873A (en) | Combined fine water mist sprinkler head | |
| CN109513538A (en) | The angle of condenser/evaporator blows and sprays mouth | |
| WO2019127936A1 (en) | Nozzle structure, jet device and engine | |
| CN109373350B (en) | Quartz tube nesting structure for aircraft engine nozzle | |
| US6814307B2 (en) | Low NOx liquid fuel oil atomizer spray plate and fabrication method thereof | |
| CN203389262U (en) | Combination type water mist sprayer | |
| CN111256167A (en) | Rotary oil injection rod structure | |
| CN109356748A (en) | Regenerative swirl injection atomising device | |
| CN211303463U (en) | Bubble type atomizing spray gun nozzle |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20150325 |