CN1986078A - Supersonic two-phase flow sprayer with adjustable laval nozzle - Google Patents
Supersonic two-phase flow sprayer with adjustable laval nozzle Download PDFInfo
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- CN1986078A CN1986078A CN 200610097405 CN200610097405A CN1986078A CN 1986078 A CN1986078 A CN 1986078A CN 200610097405 CN200610097405 CN 200610097405 CN 200610097405 A CN200610097405 A CN 200610097405A CN 1986078 A CN1986078 A CN 1986078A
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Abstract
The present invention discloses a kind of supersonic two-phase flow sprayer with adjustable Laval nozzle. The supersonic two-phase flow sprayer includes a supersonic nozzle system comprising a high pressure steam inlet, a pressure stabilizing chamber, a front reducing pipe, a back reducing pipe, a mixing chamber and a mixed gas outlet, and a water supply system comprising a liquid/water mixture inlet, a fine water orifice assembly and a fine interval ring. The present invention has the advantages of simple structure, low cost, homogeneous fog drop size, high atomizing efficiency, great sprayed area, long striking distance and wide application range.
Description
Technical field
The present invention relates to a kind of physical mixed sprayer unit, especially a kind of heat, energy and dynamics conversion, the supersonic speed vapour-liquid two-phase mixed atomizing device that the vapour-liquid two-phase flow mixes and pump is defeated, specifically a kind of supersonic two-phase flow sprayer with adjustable laval nozzle.
Background technology
Existing agricultural plant and fire-fighting fire extinguishing sprayer unit all adopt the two-phase flow spray technique of drive of high-pressure gas, and its major defect is that spray area is little, range short, droplet particle and spray inhomogeneous.Gases at high pressure only play the driving carrier function simultaneously, can not finally participate in the work of liquid medium effectively, cause poor efficiency.The generation of gases at high pressure needs high-power compressor, and too high gas pressure also needs high-intensity tankage, increases manufacturing, maintenance, operating cost.
Summary of the invention
The energy-efficient supersonic two-phase flow sprayer with adjustable laval nozzle that the purpose of this invention is to provide a kind of no-movable part.Can be widely used in spraying fertilising, the desinsection of agricultural plant; Also can be used for the indoor sterilization in food, the medicine processing; The fire-fighting fire extinguishing and the indoor automatic control fire-fighting system that also can be used for special industry such as papermaking, electronics and warehouse.
Technical scheme of the present invention is:
A kind of supersonic two-phase flow sprayer with adjustable laval nozzle, comprise superonic flow nozzzle system that forms by high steam import (2), pressure stabilizing chamber (3), annular convergent chamber (4), annular flaring chamber (6), mixing chamber (8) and mixed gas outlet (9) and the water system of forming by mixed liquor/water inlet (1), fine hole for water spraying (7) and fine spacer ring (7a).
The flaring superonic flow nozzzle is formed with the surfaces externally and internally cooperation at the corresponding position of outer surface of inner core member (11) by the inner surface of Laval pipe (10) behind the first convergent of annular, the big I in its throat gap (5) changes with inner core member (11) relative position by regulating Laval pipe (10), thereby changes jet amount and speed when admission pressure is constant.Jet amount and speed also can realize by regulating inlet steam pressure.
The output of the mutually fine hole for water spraying group in footpath (7) that annular spread and inner core member (11) outer surface are perpendicular or tangent can change by regulating pressure of supply water (4～8 atmospheric pressure); The fine spacer ring (7a) tangent of annular spread with inner core member (11) appearance over glaze, it is formed with the surfaces externally and internally cooperation at the corresponding position of water jacket spare (12) by Laval pipe (10), can change by the size of regulating pressure of supply water or fine spacer ring, the big I of fine spacer ring changes with water jacket spare (12) relative position by regulating Laval pipe (10).
By steam regulation amount, jet velocity and output realize different gas/water than, range require, spray area, droplet granular size etc., thereby satisfy different requirements under given equipment and technology condition, realize a tractor serves several purposes.
The present invention has the following advantages:
One, simple in structure, manufacturing, maintenance, debugging convenience and operating cost are low;
Two, droplet uniform particles, the nebulization efficiency height, the particle diameter of 90% percent by volume is less than 7.5um (D
V90≤ 7.5um);
Three, big, the far firing range of spray area, adjustability is strong, applied range.Owing to adopt multinomial adjusting measure, can satisfy different requirements;
Four, this device has very strong mixing, emulsification, atomizing ability, the material of very suitable slightly solubility such as the spraying of powdery and oil-based liquid;
Five, this device no-movable part, it is convenient to clean, no equipment pollution.
Six, be the part experimental data of supersonic two-phase flow sprayer with adjustable laval nozzle of the present invention below:
Steam inlet pressure: 0.3～1.2Mpa;
Steam flow: 110～240 kilograms/hour;
Mixed liquor flow: 1000 kilograms/hour;
Range: 15～30m;
The droplet particle diameter is less than 7.5um (D
V90≤ 7.5um).
Description of drawings
Fig. 1 is one of structural representation of the present invention.
Fig. 2 is two of a structural representation of the present invention.
The specific embodiment
The present invention is further illustrated for following structure drawings and Examples.
Shown in Fig. 1～2.
Present embodiment is made up of superonic flow nozzzle air supply system and fine aperture/ring spray water system two parts.Wherein spray water system and comprise water inlet 1 and fine hole for water spraying (7) and fine spacer ring (7a), fine spacer ring (7a) forms (shown in Figure 2) by Laval pipe (10) and water jacket spare (12) cooperation; The superonic flow nozzzle air supply system is formed (shown in Fig. 1～2) by high steam import (2), pressure stabilizing chamber (3), annular convergent chamber (4), throat (5), annular flaring chamber (6), mixing chamber (8) and mixed gas outlet (9).
High steam enters pressure stabilizing chamber (3) by steam inlet (2), after annular elder generation convergent chamber (4), high steam is accelerated, when arriving throat (5), speed reaches velocity of sound (M=1), is further expanded by annular flaring chamber (6) to be accelerated into supersonic speed again, when entering mixing chamber (8), speed reaches 1000m/s, and (＜0.7bar) district, this moment, steam potential major part converted the kinetic energy of supersonic airstream to produce a low temperature (＜45 ℃) low pressure.
Fragment into the bulky grain dropping liquid by the fluid that fine aperture (7)/ring (7a) sucks naturally or mixing chamber (8) is advanced in high-pressure injection because of pressure reduction; The bulky grain dropping liquid becomes the granule dropping liquid because of the further explosion of inside and outside differential pressure, and further clash into supersonic airstream, disperse mixes and energy exchange, form tiny high speed droplet, the droplet that final high steam is condensed into forms fog from outlet (9) ejection at a high speed with the droplet that splits into, and further divide in the downstream, the particle diameter that reaches 90% percent by volume is less than 7.5um.For material such as the powdery and the oil-based liquid of slightly solubility, can on mixing chamber (8), establish charge door in addition, make that it can evenly mix with high steam, water, emulsification, atomisation.
The intensity and the steam flow of inlet steam pressure and throat gap length decision supersonic speed steam turbulent flow, intake pressure and spacer ring size decision liquid inventory reach that different vapour-liquids are when mixed, atomizing, spray effect.
Claims (2)
1, supersonic two-phase flow sprayer with adjustable laval nozzle, it is characterized in that comprising the superonic flow nozzzle system that forms by high steam import (2), pressure stabilizing chamber (3), annular convergent chamber (4), annular flaring chamber (6), mixing chamber (5) and mixed gas outlet (9), the water system of forming by mixed liquor/water inlet (1), fine hole for water spraying (7) and fine spacer ring (7a); Described pressure stabilizing chamber (3), annular convergent chamber (4), annular flaring chamber (6) are formed with the surfaces externally and internally cooperation at the corresponding position of outer surface of inner core member (11) by the inner surface of Laval pipe (10); Described fine hole for water spraying (7) is the footpath mutually fine aperture group perpendicular or tangent with inner core member outer surface (11) of annular spread; Described fine spacer ring (7a) be annular spread with the mutually tangent fine spacer ring of inner core member (11) appearance over glaze, its surfaces externally and internally by Laval pipe (10) and the corresponding position of water jacket spare (12) cooperates and forms.
2, supersonic two-phase flow sprayer with adjustable laval nozzle according to claim 1 is characterized in that water system is the not independently reinforced feed flow/powder system of multicomponent.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200610097405 CN1986078A (en) | 2006-11-03 | 2006-11-03 | Supersonic two-phase flow sprayer with adjustable laval nozzle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200610097405 CN1986078A (en) | 2006-11-03 | 2006-11-03 | Supersonic two-phase flow sprayer with adjustable laval nozzle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1986078A true CN1986078A (en) | 2007-06-27 |
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ID=38183100
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200610097405 Pending CN1986078A (en) | 2006-11-03 | 2006-11-03 | Supersonic two-phase flow sprayer with adjustable laval nozzle |
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| CN (1) | CN1986078A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102031719A (en) * | 2010-10-26 | 2011-04-27 | 华南理工大学 | Dosing device |
| CN103273070A (en) * | 2013-06-03 | 2013-09-04 | 南京雷瑞新材料科技有限公司 | Adjustable ultra-fine atomizing nozzle for titanium and titanium alloy melt |
| CN106120268A (en) * | 2016-07-29 | 2016-11-16 | 无锡小天鹅股份有限公司 | Nozzle assembly, steam raising plant and clothes-drying device for steam generator |
| CN107191928A (en) * | 2017-06-23 | 2017-09-22 | 山西大学 | A kind of multistage atomizing oil gun |
| US10107494B2 (en) | 2014-04-22 | 2018-10-23 | Universal City Studios Llc | System and method for generating flame effect |
| CN110076021A (en) * | 2019-04-23 | 2019-08-02 | 成都华以科技有限公司 | A kind of atomizer based on spiral air flow |
-
2006
- 2006-11-03 CN CN 200610097405 patent/CN1986078A/en active Pending
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102031719A (en) * | 2010-10-26 | 2011-04-27 | 华南理工大学 | Dosing device |
| CN103273070A (en) * | 2013-06-03 | 2013-09-04 | 南京雷瑞新材料科技有限公司 | Adjustable ultra-fine atomizing nozzle for titanium and titanium alloy melt |
| CN103273070B (en) * | 2013-06-03 | 2015-08-05 | 南京雷瑞新材料科技有限公司 | A kind of adjustable titanium or titanium alloy liquation ultra-fine atomization spray nozzle |
| US10107494B2 (en) | 2014-04-22 | 2018-10-23 | Universal City Studios Llc | System and method for generating flame effect |
| US11029023B2 (en) | 2014-04-22 | 2021-06-08 | Universal City Studios Llc | System and method for generating flame effect |
| CN106120268A (en) * | 2016-07-29 | 2016-11-16 | 无锡小天鹅股份有限公司 | Nozzle assembly, steam raising plant and clothes-drying device for steam generator |
| CN106120268B (en) * | 2016-07-29 | 2018-10-16 | 无锡小天鹅股份有限公司 | Nozzle assembly, steam generation facility and clothes-drying device for steam generator |
| CN107191928A (en) * | 2017-06-23 | 2017-09-22 | 山西大学 | A kind of multistage atomizing oil gun |
| CN107191928B (en) * | 2017-06-23 | 2023-09-22 | 山西大学 | Multistage atomization oil gun |
| CN110076021A (en) * | 2019-04-23 | 2019-08-02 | 成都华以科技有限公司 | A kind of atomizer based on spiral air flow |
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