CN203778234U - Internal-mixing type two-phase flow spray nozzle - Google Patents
Internal-mixing type two-phase flow spray nozzle Download PDFInfo
- Publication number
- CN203778234U CN203778234U CN201420046071.0U CN201420046071U CN203778234U CN 203778234 U CN203778234 U CN 203778234U CN 201420046071 U CN201420046071 U CN 201420046071U CN 203778234 U CN203778234 U CN 203778234U
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- nozzle
- cap
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- phase flow
- mixing
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Abstract
The utility model provides an internal-mixing type two-phase flow spray nozzle which is strong in adaptability, has outstanding energy-saving property and also has a favourable atomization effect under high flow. The internal-mixing type two-phase flow spray nozzle comprises a spray nozzle body and a spray nozzle cap, wherein the spray nozzle body is provided with a liquid channel and a gas channel, the head part of the spray nozzle cap is provided with a plurality of spray holes, the spray nozzle cap is provided with a mixing region and a spray cavity, the head of the spray nozzle cap is provided with a target nail, the target nail extends into the spray cavity from the head of the spray nozzle cap, and the liquid channel and the gas channel are respectively communicated with the mixing region.
Description
Technical field
The utility model relates to a kind of two phase flow nozzle, is specifically related to a kind of internal-mixing two phase flow nozzle.
Background technology
Mist cooling is a kind of temperature-fall period.Wherein relate to two kinds of droplet formation and evaporative coolings.It relate to one or more liquid mist are changed into fine mist and make droplet and cooling medium between comprehensive engagement on a large scale.Droplet is subject to thermal evaporation, and smaller volume, until evaporation completely.At present nozzle is the simple mechanism of realizing the atomization of liquid and contacting completely with cooling medium, existing nozzle is as far as possible little in order to ensure atomizing particle, general aperture is no more than 2mm, can leave the phenomenon of fouling, obstruction, and exist and be difficult for demolition and maintenance, mist flow is little, consumes gas flow large, the problem that atomizing effect is bad.
Utility model content
The utility model object is to provide that a kind of strong adaptability, energy-efficient performance are outstanding, also can the good internal-mixing two phase flow nozzle of atomizing effect when large flow.
To achieve these goals, the utility model adopts following scheme:
A kind of internal-mixing two phase flow nozzle, comprise nozzle body and cap of spraying nozzle, nozzle body has fluid passage and gas passage, cap of spraying nozzle head has multiple spray orifices, cap of spraying nozzle has mixed zone and spray chamber, cap of spraying nozzle head is provided with target nail, and target nail stretches in spray chamber from cap of spraying nozzle head, and fluid passage and gas passage all communicate with mixed zone.
Further, gas passage comprises multiple gas via-holes, a transition region and a gas compression district, gas via-hole is shoulder hole, be arranged on around fluid passage, transition region is communicated with respectively gas via-hole and gas compressional zone, and gas compression district is from close transition region one end to the diminishing pyramidal structure in one end, mixed zone.
Further, gas via-hole front end is provided with the flow deflector in multiple holes.
Further, nozzle body is provided with groove away from one end of cap of spraying nozzle, in this groove, sealing ring is installed.
Further, fluid passage is the feed pipe that is arranged on nozzle body center, and feed pipe head is pyramidal structure, and feed pipe has the chamber of entering and inner chamber, and entering chamber is pyramidal structure, and inner chamber is cylindrical-shaped structure.
Further, mixed zone is pyramidal structure, and little near one end of spray chamber.
Further, between nozzle body and cap of spraying nozzle, connect as one by nut.
Further, nut inside center is disposed with screwed hole, the first endoporus and the second endoporus; The first diameter of bore is greater than and the second diameter of bore, and the two is step layout; Cap of spraying nozzle middle part is cylindric, and end has protrusion step, and cap of spraying nozzle external diameter matches with the second diameter of bore.
The beneficial effects of the utility model: gas and liquid just mix this two kinds of fluids before entering cooling chamber; Nozzle energy-efficient performance is outstanding, and it is good that large flow also can have atomizing effect while reaching 20T/H, average diameter of particles 40-150um.Even if this nozzle also can atomization produce droplet in the time starting simultaneously.
Brief description of the drawings
Fig. 1 is the utility model perspective view.
Fig. 2 is the utility model another side perspective view.
Fig. 3 is the utility model cross-sectional schematic.
Fig. 4 is that the utility model master looks schematic diagram.
In figure 1, nozzle body, 2, flow deflector, 3, sealing ring, 4, nut, 5, feed pipe, 6, cap of spraying nozzle, 7, target nail, a, enter chamber, b, inner chamber, c, gas via-hole, d, transition region, e, gas compression district, f, mixed zone, g, spray chamber, h, spray orifice, 401, screwed hole, 402, the first endoporus, 403, the second endoporus, 601, protrude step.
Detailed description of the invention
Better understand the utility model for the ease of those skilled in the art, below in conjunction with the drawings and specific embodiments, the utility model is described in further details, following is only the exemplary protection domain of the present utility model that do not limit.
A kind of internal-mixing two phase flow nozzle, comprise nozzle body 1 and cap of spraying nozzle 6, nozzle body 1 has fluid passage and gas passage, cap of spraying nozzle 6 heads have 6-8 spray orifice h, and cap of spraying nozzle 6 has mixed zone f and spray chamber g, and mixed zone f is pyramidal structure, and the one end near spray chamber g is little, cap of spraying nozzle 6 heads are also provided with target nail 7, and target nail 7 stretches in spray chamber g from cap of spraying nozzle 6 heads, and fluid passage and gas passage all communicate with mixed zone f.
Gas passage comprises 8-12 gas via-hole c, a transition region d and a gas compression district e, gas via-hole c is shoulder hole, be arranged on around fluid passage, transition region d is communicated with respectively gas via-hole c and gas compressional zone e, and gas compression district e is from close transition region d one end to the diminishing pyramidal structure in f one end, mixed zone.
Gas via-hole c front end is provided with the flow deflector 2 in 6-8 hole, at a high speed other by time understand High Rotation Speed, this gas is moved around gas passage clockwise or in counter clockwise direction same, strengthen the vortex movement of this gas, play cutting steam, play current stabilization, the effect of uniform air-flow.After mixing, act on liquid, the atomization of this liquid is got back and greatly improve.
Nozzle body 1 is provided with groove away from one end of cap of spraying nozzle 6, and sealing ring 3 is installed in this groove, plays the effect of nozzle body 1 and inlet channel sealing.
Fluid passage is the feed pipe 5 that is arranged on nozzle body 1 center, and feed pipe 5 heads are pyramidal structure, and feed pipe 5 has the chamber of entering a and inner chamber b, and entering chamber a is pyramidal structure, and inner chamber b is cylindrical-shaped structure.
Between nozzle body 1 and cap of spraying nozzle 6, connect as one by nut 4, nut 4 inside center are disposed with screwed hole 401, the first endoporus 402 and the second endoporus 403; The first endoporus 402 diameters are greater than and the second endoporus 403 diameters, and the two is step layout; Cap of spraying nozzle 6 middle parts are cylindric, and end have protrude step 601, cap of spraying nozzle 6 external diameters match and the second endoporus 403 diameters.
Material of the present utility model can, according to technological requirement except adopting 316L, 310, also can adopt pottery, Haas alloy, and the Wear-resistant, high-temperature resistant resistant materials such as 254SMo, are applicable to process high temperature and abrasion feed.Containing higher CL
-, CO
3 2-, SO
4 2-under environment Deng sour corrosion material, this type of nozzle has more corrosion resistance.The utility model spray orifice aperture is 4.8-6.3mm, and its unique super large spray orifice design, has larger adaptability to impurity particle in water, and for using river, industrial circulating water user can reduce the pretreated expense of water quality.
Compressed Gas and liquid first by gas passage and fluid passage in mixed zone f internal mix, high-speed liquid is followed closely g by target and is completed after fierce mechanical collision, complete once disperse to clash into broken.The Compressed Gas of the liquids and gases passage in jet is constantly sheared at mixed zone f, and sharp impacts merges repeatedly, completes second-time breakage.Produce the bubble expanding due to the Pressure Drop explosion at spray orifice h, by drop broken rear ejection again.Complete broken for the third time.Along with tertiary crushing, form a large conical shaped spray in the multiple roundlet tapers fog-zone summation outwards spraying from spray orifice h.Cone angle (generally having 20 degree and two kinds of specifications of 55 degree) disperses ejection, pressure drop, and along with range and projected area expand gradually, drop is more and more dispersed to vaporific, reaches micron order.Fragmentation is more complete, the more remarkable effect of air-assisted atomization.Can be widely used in iron and steel, metallurgy, petroleum refining, pharmacy, chemical industry, cement, environmental protection, dedusting atomization cooling, desulphurization denitration and other association area.
The utility model gas-liquid adopts the atomization of liquid of the low gas-pressurized percussive assist of high speed.Pressure energy converts kinetic energy to, and the low gas-pressurized of this high speed produces high frictional force and shearing force, makes liquid breakup become more and more less drop until droplet.Atomizing particle is very tiny, even, can guarantee to evaporate completely.Gas-liquid two-phase is interactional, and in the situation that hydraulic pressure is constant, liquid phase flow reduces along with the increase of air pressure.Under certain gaseous pressure, gas phase flow rate reduces along with the increase of hydraulic coupling, and in the constant situation of liquid phase pressure, gas phase flow rate increases along with the increase of air pressure.Single-nozzle range of flow is large, and liquid regulates than reaching 10:1, and in fluid flow excursion, atomizing particle remains unchanged substantially, has guaranteed the flue gas conditioning effect under big yield condition.
Owing to being low pressure (air pressure generally can not exceed 4BAR), solve compressed-air actuated expensive and low nebulization efficiency.And the utility model is mach, nozzle precision is higher.Therefore the tolerance, consuming under identical atomizing effect is less.
Below only described general principle of the present utility model and preferred embodiment, those skilled in the art can make many changes and improvements according to foregoing description, and these changes and improvements should belong to protection domain of the present utility model.
Claims (8)
1. an internal-mixing two phase flow nozzle, it is characterized in that: comprise nozzle body (1) and cap of spraying nozzle (6), nozzle body (1) has fluid passage and gas passage, cap of spraying nozzle (6) head has multiple spray orifices (h), cap of spraying nozzle (6) has mixed zone (f) and spray chamber (g), cap of spraying nozzle (6) head is provided with target nail (8), and target nail (8) stretches in spray chamber from cap of spraying nozzle (6) head, and fluid passage and gas passage all communicate with mixed zone (f).
2. internal-mixing two phase flow nozzle according to claim 1, it is characterized in that: gas passage comprises multiple gas via-holes (c), a transition region (d) and a gas compression district (e), gas via-hole (c) is shoulder hole, be arranged on around fluid passage, transition region (d) is communicated with respectively gas via-hole (c) and gas compressional zone (e), and gas compression district (e) is the diminishing pyramidal structure in (f) one end from close transition region (d) one end to mixed zone.
3. internal-mixing two phase flow nozzle according to claim 1, is characterized in that: gas via-hole (c) front end is provided with the flow deflector (2) in multiple holes.
4. internal-mixing two phase flow nozzle according to claim 1, is characterized in that: nozzle body (1) is provided with groove away from one end of cap of spraying nozzle (6), and sealing ring (3) is installed in this groove.
5. internal-mixing two phase flow nozzle according to claim 1, it is characterized in that: fluid passage is for being arranged on the feed pipe at nozzle body (1) center, feed pipe head is pyramidal structure, and feed pipe has the chamber of entering (a) and inner chamber (b), enter chamber (a) for pyramidal structure, inner chamber (b) is cylindrical-shaped structure.
6. internal-mixing two phase flow nozzle according to claim 1, is characterized in that: mixed zone (f) is pyramidal structure, and little near one end of spray chamber (g).
7. according to internal-mixing two phase flow nozzle described in claim 1 to 6 any one, it is characterized in that: between nozzle body (1) and cap of spraying nozzle (6), connect as one by nut (4).
8. internal-mixing two phase flow nozzle according to claim 7, is characterized in that: nut (4) inside center is disposed with screwed hole (401), the first endoporus (402) and the second endoporus (403); The first endoporus (402) diameter is greater than and the second endoporus (403) diameter, and the two is step layout; Cap of spraying nozzle (6) middle part is cylindric, and end has protrusion step (601), and cap of spraying nozzle (6) external diameter matches with the second endoporus (403) diameter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420046071.0U CN203778234U (en) | 2014-01-24 | 2014-01-24 | Internal-mixing type two-phase flow spray nozzle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420046071.0U CN203778234U (en) | 2014-01-24 | 2014-01-24 | Internal-mixing type two-phase flow spray nozzle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203778234U true CN203778234U (en) | 2014-08-20 |
Family
ID=51314463
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420046071.0U Expired - Fee Related CN203778234U (en) | 2014-01-24 | 2014-01-24 | Internal-mixing type two-phase flow spray nozzle |
Country Status (1)
| Country | Link |
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| CN (1) | CN203778234U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105562232A (en) * | 2015-12-11 | 2016-05-11 | 中国航空工业集团公司西安飞机设计研究所 | Two nozzles capable of adjusting liquid flow |
-
2014
- 2014-01-24 CN CN201420046071.0U patent/CN203778234U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105562232A (en) * | 2015-12-11 | 2016-05-11 | 中国航空工业集团公司西安飞机设计研究所 | Two nozzles capable of adjusting liquid flow |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140820 Termination date: 20160124 |
|
| EXPY | Termination of patent right or utility model |