CN201399583Y - Atomizing nozzle of superfine powder preparation device - Google Patents
Atomizing nozzle of superfine powder preparation device Download PDFInfo
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- CN201399583Y CN201399583Y CN2009200710880U CN200920071088U CN201399583Y CN 201399583 Y CN201399583 Y CN 201399583Y CN 2009200710880 U CN2009200710880 U CN 2009200710880U CN 200920071088 U CN200920071088 U CN 200920071088U CN 201399583 Y CN201399583 Y CN 201399583Y
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Abstract
The utility model relates to an atomizing nozzle of a superfine powder preparation device, which comprises a nozzle mouth, a liquid guide cavity, an annular ring, a circular seam, an air intake cavityand a cooling water cavity, wherein the lower end of the liquid guide cavity is communicated with the nozzle mouth; the cooling water cavity is arranged at the upper end of the outer side of the liquid guide cavity and encircles the liquid guide cavity; the air intake cavity is arranged at the lower end of the outer side of the liquid guide cavity and encircles the liquid guide cavity; the annular ring is communicated with the air intake cavity through the circular seam; the medial axis of the annular ring is perpendicular to that of the circular seam; the annular ring is communicated with the nozzle mouth through an opening on the side wall of the nozzle mouth; and the medial axis of the annular ring intersects that of the liquid guide cavity at the lower part of the nozzle mouth. The atomizing nozzle of the superfine powder preparation device can disorder and crush high-temperature alloy liquid streams to form vaporous liquid drips for rapid condensation, thereby achieving better spraying, atomization and deposition effects and obtaining powder with excellent performance.
Description
Technical field
The utility model relates to a kind of atomizer, relates in particular to a kind of atomizer of superfines preparation facilities.
Background technology
At present, energy savings and resource make resource utilization the highest, the trend of technical development when energy resource consumption is minimum.Researching and developing energy-efficient, environmental protection means of transport is the developing direction of 21st century.Energy-conservation and environmental protection is the hot subject of contemporary society's research, also is the key of sustainable development.
Compare with powder metallurgical technique with conventional casting ingot process, spray deposition processing has unique advantage.As a kind of novel rapid solidification technique, the product of reaction-injection moulding has tiny equiax crystal and spheroidal structure, solid solubility is big, degree of oxidation is little, the characteristics that density is high at first do not have in the inside metallurgical imperfection of traditional ingot casting and the liquid Surface-micromachining processes such as built-up welding or thermal spraying inevitably blemish.And the operation of producing is simple, and cost is low, and higher jet deposition efficient is arranged.
In the reaction-injection moulding equipment, the position of most critical is exactly an atomizer.Under the injection of high energy gas, metal liquid stream is broken down into the drop in the certain size scope.Drop by with the convection current of ambient gas and towards periphery radiation loss heat, and different according to the size of aloft drop and drop temperature, with liquid state, solid-state or semisolid is quickened flight to matrix.
At present, the restriction condition of reaction-injection moulding equipment application development is a technological problems.One, lithosomic body density, all once not enough; Two, it is restricted to make part dimension.Two problems finally all are summed up as on the atomizer performance, and traditional atomizer jet-stream wind stability is bad, and each is not high to symmetry, and jet speed is not high enough.
The utility model content
The utility model provides a kind of jet-stream wind flow velocity higher more stable according to deficiency of the prior art, and spray angle is reasonable, and the atomizer of the superfines preparation facilities of processing feasibility is arranged.
For achieving the above object, the utility model is achieved through the following technical solutions:
A kind of atomizer of superfines preparation facilities comprises: jet hole, liquid guiding cavity, annular distance, circumferential weld, inlet chamber and cooling water cavity; Wherein, the lower end of liquid guiding cavity is communicated with jet hole; The outer upper end of liquid guiding cavity is provided with and is surrounded on its cooling water cavity on every side, and the lower end, the outside of liquid guiding cavity also is provided with and is surrounded on its inlet chamber on every side; Annular distance is communicated with inlet chamber by circumferential weld, and the axis of annular distance is vertical with the axis of circumferential weld, and the opening of annular distance on the jet hole sidewall is communicated with jet hole, and intersect below jet hole the axis of annular distance and the axis of liquid guiding cavity.
Described annular distance is the laval structure of convergence-divergence form, and the scope of the angle theta between the axis of annular distance and the axis of liquid guiding cavity is 20 ° to 45 °.
Preferably, described jet hole sidewall is connected with 18 annular distances of evenly arranging.
One side of described cooling water cavity is provided with water inlet pipe and outlet pipe.
Described inlet chamber is communicated with air inlet pipe, and air inlet pipe and inlet chamber side are tangent.
The atomizer of superfines preparation facilities of the present utility model has following characteristics:
1, atomizer is by being provided with the annular distance of laval structure, make gas jet break through the velocity of sound barrier, reach in the past the unapproachable G/M of nozzle than (that is: gas liquid ratio, the mass ratio of the molten metal that flows out gaseous mass that goes out from nozzle ejection and the liquid guiding cavity), can high temperature alloy liquid stream is disorderly broken, form vaporific drop and rapid condensation, reach better jet atomization and deposition effect, obtain the lithosomic body of excellent performance;
2, spray angle is determined can obtain better collection rate at 20 °～45 °, reduces the deposition porosity;
3, the Inlet Manifold Design of inlet chamber becomes cut-in type, guarantees the homogeneity of each hole injection air pressure;
4, introduce cooling chamber, can carry out the water-cooled cooling, guarantee nozzle stable operation.
Description of drawings
The sectional structure schematic diagram of the atomizer of Fig. 1 the utility model superfines preparation facilities.
The upward view of the atomizer of Fig. 2 the utility model superfines preparation facilities.
The vertical view of the atomizer inlet chamber of Fig. 3 the utility model superfines preparation facilities.
The vertical view of the atomizer cooling water cavity of Fig. 4 the utility model superfines preparation facilities.
The specific embodiment
The atomizer of superfines preparation facilities comprises: jet hole 1, liquid guiding cavity 2, annular distance 3, inlet chamber 4, cooling water cavity 5 and circumferential weld 6 as shown in Figures 1 and 2.Wherein, the lower end of liquid guiding cavity 2 is communicated with jet hole 1; The outer upper end of liquid guiding cavity 2 is provided with and is surrounded on its cooling water cavity 5 on every side, and the lower end, the outside of liquid guiding cavity 2 also is provided with and is surrounded on its inlet chamber 4 on every side; Annular distance 3 is communicated with inlet chamber 4 by circumferential weld 6, the axis of annular distance 3 is vertical with the axis of circumferential weld 6, the opening of annular distance 3 on jet hole 1 sidewall is communicated with jet hole 1, the axis of annular distance 3 is vertical with the axis of circumferential weld 6, and intersect below jet hole 1 axis of the axis of annular distance 3 and liquid guiding cavity 2.
The structure of annular distance 3 is the laval structure of convergence-divergence form, and the angle theta between the axis of the axis of annular distance 3 and liquid guiding cavity 2 is 30 °, and jet hole 1 is communicated with liquid guiding cavity 2, and the sidewall of jet hole 1 communicates with 18 annular distances 3 of evenly arranging.Inlet chamber 4 is the cut-in type inlet chamber, guarantees homogeneity and stability that each annular distance 3 sprays air pressure.Air inlet pipe 7 is positioned at the side of inlet chamber 4, along level and smooth the cutting into of inlet chamber 4 inwalls.Gases at high pressure eject from annular distance 3, and molten metal bath is from ejecting 1 along liquid guiding cavity 2 from jet hole, because the convergence of annular distance 3-divergence form structure, gas jet breaks through the velocity of sound barrier, can reach better jet atomization and deposition effect.The side of cooling water cavity 5 is provided with water inlet pipe 8 and outlet pipe 9, and water inlet pipe 8 and outlet pipe 9 are placed side by side.Water circulates in cooling water cavity 5, is used for cooling jet, guarantees that nozzle normally moves.
The vertical view of the atomizer inlet chamber of the utility model superfines preparation facilities as shown in Figure 3, air inlet pipe 7 is communicated with inlet chamber 4, and the side of the axis of air inlet pipe 7 and inlet chamber 4 is tangent.
The vertical view of the atomizer cooling water cavity of the utility model superfines preparation facilities as shown in Figure 4, cooling water cavity 5 is communicated with water inlet pipe 8 and outlet pipe 9 respectively, during atomizer work, running water or other cooling mediums enter cooling water cavity 5 by water inlet pipe 8, after cooling water cavity 5 inner loop, flow out through outlet pipe 9.By the operating temperature of the cooling medium circulation in cooling water cavity 5 reduction atomizer, guarantee nozzle function stability.
Claims (5)
1, a kind of atomizer of superfines preparation facilities comprises: jet hole, liquid guiding cavity, annular distance, circumferential weld, inlet chamber and cooling water cavity; Wherein, the lower end of liquid guiding cavity is communicated with jet hole; The outer upper end of liquid guiding cavity is provided with and is surrounded on its cooling water cavity on every side, and the lower end, the outside of liquid guiding cavity also is provided with and is surrounded on its inlet chamber on every side; Annular distance is communicated with inlet chamber by circumferential weld, and the axis of annular distance is vertical with the axis of circumferential weld, and the opening of annular distance on the jet hole sidewall is communicated with jet hole, and intersect below jet hole the axis of annular distance and the axis of liquid guiding cavity.
2, the atomizer of superfines preparation facilities according to claim 1 is characterized in that: described annular distance is the laval structure of convergence one divergence form, and the value of the angle theta between the axis of annular distance and the axis of liquid guiding cavity is 20 ° to 45 °.
3, the atomizer of superfines preparation facilities according to claim 1 is characterized in that: the sidewall of described jet hole communicates with 18 annular distances of evenly arranging.
4, the atomizer of superfines preparation facilities according to claim 1 is characterized in that: described cooling water cavity one side is connected with water inlet pipe and outlet pipe.
5, the atomizer of superfines preparation facilities according to claim 1 is characterized in that: described inlet chamber is communicated with air inlet pipe, and air inlet pipe and inlet chamber side are tangent.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200710880U CN201399583Y (en) | 2009-04-24 | 2009-04-24 | Atomizing nozzle of superfine powder preparation device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200710880U CN201399583Y (en) | 2009-04-24 | 2009-04-24 | Atomizing nozzle of superfine powder preparation device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201399583Y true CN201399583Y (en) | 2010-02-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009200710880U Expired - Lifetime CN201399583Y (en) | 2009-04-24 | 2009-04-24 | Atomizing nozzle of superfine powder preparation device |
Country Status (1)
| Country | Link |
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| CN (1) | CN201399583Y (en) |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102489711A (en) * | 2011-12-06 | 2012-06-13 | 中南大学 | Gas atomization nozzle for preparing superfine metal powder |
| CN102528035A (en) * | 2011-12-31 | 2012-07-04 | 西北工业大学 | System and method for forming disk part by performing two-stage atomizing and spraying |
| CN103846449A (en) * | 2014-03-12 | 2014-06-11 | 张家港振江粉末冶金制品有限公司 | Powder making device for powder metallurgy |
| CN103846448A (en) * | 2014-03-04 | 2014-06-11 | 常州元一新材料科技有限公司 | Preparation method of ultra-low-oxygen spherical micron copper powder |
| CN104353839A (en) * | 2014-10-17 | 2015-02-18 | 同济大学 | Supersonic atomizing nozzle with single-stage laval and hartmann combined structure |
| CN104368820A (en) * | 2014-10-17 | 2015-02-25 | 同济大学 | Laval and hartmann structure integrated type supersonic-speed atomizing nozzle |
| CN107377984A (en) * | 2017-09-20 | 2017-11-24 | 中国科学院金属研究所 | A kind of double coupled gas atomizers |
| CN108941588A (en) * | 2018-07-27 | 2018-12-07 | 中南大学 | A kind of preparation method of laser forming Ni-base Superalloy Powder |
| CN109570518A (en) * | 2019-01-22 | 2019-04-05 | 上海材料研究所 | A kind of supersonic gas atomization spray disk for metal powder preparation |
| CN114131031A (en) * | 2021-10-21 | 2022-03-04 | 深圳市万泽航空科技有限责任公司 | Middle leaky ladle system with spray disc protection function and installation method |
-
2009
- 2009-04-24 CN CN2009200710880U patent/CN201399583Y/en not_active Expired - Lifetime
Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102489711A (en) * | 2011-12-06 | 2012-06-13 | 中南大学 | Gas atomization nozzle for preparing superfine metal powder |
| CN102528035A (en) * | 2011-12-31 | 2012-07-04 | 西北工业大学 | System and method for forming disk part by performing two-stage atomizing and spraying |
| CN103846448B (en) * | 2014-03-04 | 2016-02-10 | 常州元一新材料科技有限公司 | The preparation method of the spherical Micron Copper Powder of a kind of Ultra Low-oxygen |
| CN103846448A (en) * | 2014-03-04 | 2014-06-11 | 常州元一新材料科技有限公司 | Preparation method of ultra-low-oxygen spherical micron copper powder |
| CN103846449B (en) * | 2014-03-12 | 2015-10-21 | 张家港振江粉末冶金制品有限公司 | A kind of Powder metallurgical powder manufacture device |
| CN103846449A (en) * | 2014-03-12 | 2014-06-11 | 张家港振江粉末冶金制品有限公司 | Powder making device for powder metallurgy |
| CN104368820A (en) * | 2014-10-17 | 2015-02-25 | 同济大学 | Laval and hartmann structure integrated type supersonic-speed atomizing nozzle |
| CN104353839A (en) * | 2014-10-17 | 2015-02-18 | 同济大学 | Supersonic atomizing nozzle with single-stage laval and hartmann combined structure |
| CN104368820B (en) * | 2014-10-17 | 2016-08-24 | 同济大学 | A kind of ultrasonic nebulization jet nozzle merging laval Yu hartmann structure |
| CN104353839B (en) * | 2014-10-17 | 2016-08-24 | 同济大学 | A kind of single-stage merges the ultrasonic nebulization jet nozzle of laval Yu hartmann structure |
| CN107377984A (en) * | 2017-09-20 | 2017-11-24 | 中国科学院金属研究所 | A kind of double coupled gas atomizers |
| CN108941588A (en) * | 2018-07-27 | 2018-12-07 | 中南大学 | A kind of preparation method of laser forming Ni-base Superalloy Powder |
| CN109570518A (en) * | 2019-01-22 | 2019-04-05 | 上海材料研究所 | A kind of supersonic gas atomization spray disk for metal powder preparation |
| CN109570518B (en) * | 2019-01-22 | 2022-07-08 | 上海材料研究所 | Supersonic gas atomization spray disk for metal powder preparation |
| CN114131031A (en) * | 2021-10-21 | 2022-03-04 | 深圳市万泽航空科技有限责任公司 | Middle leaky ladle system with spray disc protection function and installation method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20100210 |