CN101491794A - High-speed jet gas-liquid mixing-phase ejector - Google Patents
High-speed jet gas-liquid mixing-phase ejector Download PDFInfo
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- CN101491794A CN101491794A CNA2009100953478A CN200910095347A CN101491794A CN 101491794 A CN101491794 A CN 101491794A CN A2009100953478 A CNA2009100953478 A CN A2009100953478A CN 200910095347 A CN200910095347 A CN 200910095347A CN 101491794 A CN101491794 A CN 101491794A
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Abstract
The invention relates to a fluid ejector, and aims to provide a gas-liquid mixed phase ejector for ejecting at a high speed. The ejector comprises a liquid phase inlet pipe and a gas phase inlet pipe which are provided with a quick coupler respectively; the tail end of the liquid phase inlet pipe is connected with a liquid phase nozzle; the tail end of the gas phase inlet pipe is connected with a gas phase nozzle; the liquid phase nozzle is a single-hole nozzle; a flow passage from the liquid phase inlet pipe to the liquid phase nozzle has smooth transition; the gas phase inlet pipe encloses the outside of the liquid phase inlet pipe to form an annular gas phase flow passage; the gas phase nozzle encloses the outside of the liquid phase nozzle and is connected with a mixed phase flow passage; the tail end of the mixed phase flow passage is connected with an outlet nozzle; and an outlet circulation sectional area of the outlet nozzle is smaller than that of a circulation sectional area of the mixed phase flow passage. The liquid phase nozzle has high-speed outlet liquid flow, and the high-speed outlet liquid flow is interacted with high-speed gas phase flow in the mixed phase flow passage to realize atomization and once more acceleration, thereby the ejector greatly weakens boundary layer effect on the outlet, avoids that liquid drops separating from main jet flow are convergent to drop on the outlet, and can flexibly adjust and control atomization fineness and distribution.
Description
Technical field
The present invention relates to a kind of fluid ejector, more particularly, is a kind of gas-liquid mixed phase ejector of high velocity jet, belongs to the fluid atomizing spraying equipment.
Background technology
In industrial production and environment protection control flow process, run into the low discharge fluid through regular meeting and spray into the problem of mixing mutually in the big flow fluid.In this class problem, the low discharge fluid is little because of its flow, spray into reason such as limited location, occurs can only the part mixing or phenomenon such as required incorporation time is long with big flow fluid through regular meeting.When boiler applications SNCR technology is carried out nitrogen oxide control, reducing agent is sprayed into flue gas this class problem will occur.For this class problem, be not only just can to solve fully by the low flow rate liquid fluid atomizing being become granule or increasing method such as jet eddy flow degree, it has the requirement of uniqueness for atomized particle size and effluxvelocity.
Present atomizer or nozzle are emphasis to be concentrated on aspects such as little atomized particle size, strong eddy flow, the big extended corner of jet or particular spray shape mostly, and do not give due care for the penetration depth of the medium and small jet of cross jet.This class atomizer or nozzle application are technical at SNCR, focus mostly on after tending to bring reducing agent to spray into and then have the reducing agent white space at nearly burner hearth center, zone, furnace wall, thereby cause local the escaping of ammonia whole denitration rate bigger than normal on the low side, this type of problem is more outstanding greatly because of the section of burner hearth size becomes when especially being applied on the large-sized boiler.
Summary of the invention
Problems such as the muzzle velocity that existing atomizer or injector exist is low in order to solve, penetration depth deficiency the invention provides a kind of gas-liquid mixed phase ejector of high velocity jet.
The invention provides a kind of gas-liquid mixed phase ejector of high velocity jet, comprise the liquid phase inlet tube and the gas phase inlet tube that have ready-packaged joint respectively, the end of liquid phase inlet tube connects liquid-phase nozzle, and the end of gas phase inlet tube connects the gas phase nozzle; Described liquid-phase nozzle is a single-hole nozzle, the runner smooth transition from the liquid phase inlet tube to liquid-phase nozzle; Described gas phase inlet tube is enclosed in the liquid phase inlet tube outside and forms the gas phase runner of annular, and the gas phase nozzle is enclosed in the outside of liquid-phase nozzle and connects the mixed phase flow road, and the end in mixed phase flow road connects outlet mouth; The outlet flow area area of outlet mouth is less than the flow area area in mixed phase flow road.
As a kind of improvement, described mixed phase flow road length is not less than the internal diameter size of 5 times gas phase nozzle.
As a kind of improvement, the angle between the air current flow direction of the jet flow direction of described gas phase jet expansion and liquid-phase nozzle outlet is 0～45 °.
As a kind of improvement, the outlet of described gas phase nozzle is the some outlet openings that are distributed on the circumference.
As a kind of improvement, described outlet mouth is provided with some outlet openings, and each outlet opening direction becomes 0～45 ° of angle with axis.
As a kind of improvement, in the gas phase inlet tube in the described liquid-phase nozzle outside spinning disk is set, the spinning disk angle is 0～45 °.
As a kind of improvement, the inwall at longshore current body flow direction tail end place, described mixed phase flow road is provided with spinning disk along circumference.
As a kind of improvement, the ratio of latus rectum is 0～0.45 in described spinning disk height and the mixed phase flow road, and the spinning disk angle is 0～60 °.
Among the present invention, gaseous fluid can be compressed air, superheated vapour or gas fume after burning;
The speed of liquid-phase nozzle outlet is at 20～60m/s; Outlet mouth can be provided with 1～9 outlet opening, each outlet opening can for circulation area differ in size the footpath the hole; Spinning disk is set, and purpose is to make fluid form certain swirl strength in runner; The outlet opening of gas phase nozzle, the number in hole are 2～12;
Compared with prior art, the invention has the beneficial effects as follows:
1, liquid-phase nozzle outlet flow stream velocity height, and in the mixed phase flow road, interact with the high speed vapor phase stream, realize atomizing and quickening once more, with high-speed jet and the strong penetrability that guarantees the injector outlet.
2, the exit flow area of outlet mouth dwindles towards the center, has realized the acceleration of the boundary low-speed flow part of near wall in the mixed phase flow road, has weakened the exit effect of boundary layer greatly, avoids the exit drop to break away from that the main flow jet converges down droplet.
3, injector operation multistage atomizing effect atomized liquid, but flexible modulation control atomized particle size and distribution.
Description of drawings
Fig. 1: the generalized section of injector;
Fig. 2: the liquid-phase nozzle schematic diagram that is provided with swirl vane;
Fig. 3: A-A is to generalized section among Fig. 2;
Fig. 4: gas phase nozzle schematic diagram with a plurality of outlet openings;
Fig. 5: D-D is to generalized section among Fig. 4;
Fig. 6: outlet mouth schematic diagram with a plurality of outlet openings;
Fig. 7: C-C is to generalized section among Fig. 6;
Fig. 8: the mixed phase flow road schematic diagram of built-in spinning disk;
Fig. 9: B-B is to generalized section among Fig. 8.
Among the figure: liquid phase inlet tube 1, gas phase inlet tube 2, liquid-phase nozzle 3, gas phase nozzle 4, mixed phase flow road 5, outlet mouth 6, spinning disk 7.
The specific embodiment
Below in conjunction with the drawings and specific embodiments the present invention is done and to describe in further detail:
Concrete case study on implementation 1
The gas-liquid mixed phase ejector of the high velocity jet in the present embodiment adopts 304 stainless steels to process, comprise the liquid phase inlet tube 1 and the gas phase inlet tube 2 that have ready-packaged joint respectively, the end of liquid phase inlet tube 1 connects liquid-phase nozzle 3, and the end of gas phase inlet tube 2 connects gas phase nozzle 4; Described gas phase inlet tube 2 is enclosed in liquid phase inlet tube 1 outside and forms the gas phase runner of annular, and gas phase nozzle 4 is enclosed in the outside of liquid-phase nozzle 3 and connects mixed phase flow road 5, and the end in mixed phase flow road 5 connects outlet mouth 6.
Liquid phase inlet tube 1 is connected with ammonia spirit source, the compressed air source of 10% left and right sides concentration respectively by the ready-packaged joint that is threaded with gas phase inlet tube 2.Liquid phase inlet tube 1 and liquid-phase nozzle 3 welding, gas phase inlet tube 2 and 4 welding of gas phase nozzle, gas phase nozzle 4 is connected with mixed phase flow road 5 sealing threads, outlet mouth 6 and 5 welding of mixed phase flow road.
The injector course of work of the present invention is as follows: the ammonia spirit source of 10% left and right sides concentration enters liquid phase inlet tube 1, and the flow velocity in liquid phase inlet tube 1 is about 1m/s.Ammonia spirit begins to quicken after flowing into liquid-phase nozzle 3 by liquid phase inlet tube 1, arrives 40m/s at liquid-phase nozzle 3 exit flow velocitys.Compressed air source enters gas phase inlet tube 2, and flow velocity therein is about 10m/s.Compressed air begins to quicken after entering gas phase nozzle 4 by gas phase inlet tube 2, arrives 200m/s at gas phase nozzle 4 exit flow velocitys.The speed axis angle of air high-speed jet and ammoniacal liquor jet is 20 °, and ammoniacal liquor first order atomizing takes place under the effect of impact of high-speed air and mixes, and enters mixed phase flow road 5 then together.Second level atomizing and speed transmission take place, up to outlet mouth 6 exits in flow air and ammoniacal liquor drop continuation interaction together in mixed phase flow road 5.Outlet mouth exit flow area is 70% of a mixed phase flow road area.In the outlet mouth exit, because of the runner sudden contraction, third level atomizing takes place and quickens near wall place drop, then with air one superhigh speed jetting nozzle.
Concrete case study on implementation 2
Be different from embodiment 1, the gas-liquid mixed phase ejector outlet mouth 6 that the present embodiment high speed is sprayed is provided with 3 equal-sized outlet openings, and its axis angle is 30 °, liquid-phase nozzle 3 arranged outside gas phase spinning disks 7,30 ° of spinning disk angles.
Liquid phase inlet tube 1 is connected with superheated steam vapour source with the urea liquid source of 10% left and right sides concentration respectively by the ready-packaged joint that is threaded with gas phase inlet tube 2.Liquid phase inlet tube 1 and liquid-phase nozzle 3 welding, gas phase inlet tube 2 and 4 welding of gas phase nozzle, gas phase nozzle 4 and 5 welding of mixed phase flow road, outlet mouth 6 is connected with mixed phase flow road 5 sealing threads.
The injector course of work of the present invention is as follows: the urea liquid source of 10% left and right sides concentration enters liquid phase inlet tube 1, and the flow velocity in liquid phase inlet tube 1 is about 0.5m/s.Urea liquid begins to quicken after flowing into liquid-phase nozzle 3 by liquid phase inlet tube 1, arrives 60m/s at liquid-phase nozzle 3 exit flow velocitys.Superheated steam vapour source enters gas phase inlet tube 2, and flow velocity therein is about 15m/s.Superheated steam begins to quicken after entering gas phase nozzle 4 by gas phase inlet tube 2, and has certain spin intensity by gas phase spinning disk 7 time, arrives 400m/s at gas phase nozzle 4 exit axial flow velocities.The speed axis angle of superheated steam high-speed jet and urea jet is 10 °, and first order atomizing, mixing and heat transmission take place under the effect of impact of the superheated steam of high-speed rotational urea, enter mixed phase flow road 5 then together.Second level atomizing and speed transmission take place, up to outlet mouth 6 exits in flow air and urea droplets continuation interaction together in mixed phase flow road 5.Outlet mouth exit flow area is 90% of a mixed phase flow road area.In outlet mouth, because of runner sudden contraction and variation, third level atomizing takes place and quickens near wall place drop, passes through 3 outlet openings with 3 strands of pattern jetting nozzles with air one superhigh speed then.
At last, it is also to be noted that what more than enumerate only is specific embodiments of the invention.Obviously, the invention is not restricted to above embodiment, many distortion can also be arranged.
The present invention can summarize with other the concrete form without prejudice to spirit of the present invention and principal character.Therefore, no matter from which point, above-mentioned embodiment of the present invention all can only be thought can not limit the present invention to explanation of the present invention, claims have been pointed out scope of the present invention, and scope of the present invention is not pointed out in above-mentioned explanation, therefore, in implication suitable and any change in the scope, all should think to be included in the scope of claims with claims of the present invention.
Claims (8)
1, a kind of gas-liquid mixed phase ejector of high velocity jet comprises the liquid phase inlet tube and the gas phase inlet tube that have ready-packaged joint respectively, and the end of liquid phase inlet tube connects liquid-phase nozzle, and the end of gas phase inlet tube connects the gas phase nozzle; It is characterized in that described liquid-phase nozzle is a single-hole nozzle, runner smooth transition from the liquid phase inlet tube to liquid-phase nozzle; Described gas phase inlet tube is enclosed in the liquid phase inlet tube outside and forms the gas phase runner of annular, and the gas phase nozzle is enclosed in the outside of liquid-phase nozzle and connects the mixed phase flow road, and the end in mixed phase flow road connects outlet mouth; The outlet flow area area of outlet mouth is less than the flow area area in mixed phase flow road.
2, the gas-liquid mixed phase ejector of high velocity jet according to claim 1 is characterized in that, described mixed phase flow road length is not less than the internal diameter size of 5 times gas phase nozzle.
3, the gas-liquid mixed phase ejector of high velocity jet according to claim 1 is characterized in that, the angle between the air current flow direction of the jet flow direction of described gas phase jet expansion and liquid-phase nozzle outlet is 0～45 °.
4, the gas-liquid mixed phase ejector of high velocity jet according to claim 1 is characterized in that, the outlet of described gas phase nozzle is the some outlet openings that are distributed on the circumference.
5, the gas-liquid mixed phase ejector of high velocity jet according to claim 1 is characterized in that, described outlet mouth is provided with some outlet openings, and each outlet opening direction becomes 0～45 ° of angle with axis.
6, the gas-liquid mixed phase ejector of high velocity jet according to claim 1 is characterized in that, in the gas phase inlet tube in the described liquid-phase nozzle outside spinning disk is set, and the spinning disk angle is 0～45 °.
7, the gas-liquid mixed phase ejector of high velocity jet according to claim 1 is characterized in that, the inwall at longshore current body flow direction tail end place, described mixed phase flow road is provided with spinning disk along circumference.
8, the gas-liquid mixed phase ejector of high velocity jet according to claim 7 is characterized in that, the ratio of latus rectum is 0～0.45 in described spinning disk height and the mixed phase flow road, and the spinning disk angle is 0～60 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2009100953478A CN101491794A (en) | 2009-01-08 | 2009-01-08 | High-speed jet gas-liquid mixing-phase ejector |
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| CNA2009100953478A CN101491794A (en) | 2009-01-08 | 2009-01-08 | High-speed jet gas-liquid mixing-phase ejector |
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Cited By (27)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN102160964A (en) * | 2011-02-18 | 2011-08-24 | 中国航天科技集团公司第六研究院第十一研究所 | Selective non-catalytic reduction (SNCR) denitration multi-nozzle long-gun injector |
| CN102240618A (en) * | 2011-06-27 | 2011-11-16 | 无锡西姆莱斯石油专用管制造有限公司 | Adjustable borax nozzle foundation device |
| WO2012058809A1 (en) * | 2010-11-04 | 2012-05-10 | 浙江大学 | Adjustable fluid jet apparatus |
| CN102836792A (en) * | 2011-06-20 | 2012-12-26 | 杭州银轮科技有限公司 | Spray nozzle for post-treatment urea SCR (Silicon Controlled Rectifier) system of diesel engine |
| CN102840014A (en) * | 2011-06-20 | 2012-12-26 | 杭州银轮科技有限公司 | Air-assisted injection system for diesel engine urea after-treatment SCR (Selective Catalytic Reduction) system |
| CN103007869A (en) * | 2011-09-20 | 2013-04-03 | 中国石油化工股份有限公司 | Three liquid phase material feeding nozzle for caprolactam rearrangement reaction |
| CN103008136A (en) * | 2012-12-28 | 2013-04-03 | 山西泰来鸿纳科技有限公司 | Atomizer for air purification |
| CN103406219A (en) * | 2013-05-31 | 2013-11-27 | 中国商用飞机有限责任公司 | Water atomization spraying rake |
| CN103464318A (en) * | 2013-09-26 | 2013-12-25 | 无锡美灵数码科技有限公司 | Fine spray nozzle |
| WO2014183473A1 (en) * | 2013-05-15 | 2014-11-20 | 清华大学 | Ejector |
| CN104399615A (en) * | 2014-10-31 | 2015-03-11 | 中国神华能源股份有限公司 | Atomization injection device |
| CN105251629A (en) * | 2015-11-03 | 2016-01-20 | 吉首大学 | Water rotating gas direct spraying type pole plate spraying washing device |
| CN105344539A (en) * | 2014-08-21 | 2016-02-24 | 梁红燕 | Aroma atomizing device |
| CN106076136A (en) * | 2016-08-09 | 2016-11-09 | 刘文白 | A kind of on-the-spot mixing arrangement for barged-in fill Yu solidification intensifier |
| CN106076685A (en) * | 2016-07-27 | 2016-11-09 | 无锡宙斯环保喷雾设备制造有限公司 | A kind of two-fluid spray spray gun |
| CN107158912A (en) * | 2017-05-09 | 2017-09-15 | 东莞市大能环保科技有限公司 | A kind of high-temperature steam is atomized denitrification apparatus |
| CN107178409A (en) * | 2017-06-02 | 2017-09-19 | 中国北方发动机研究所(天津) | A kind of external mix formula rotary atomizing nozzle |
| CN108102754A (en) * | 2017-12-15 | 2018-06-01 | 浙江海洋大学 | A kind of gas hydrates reaction unit |
| CN108580076A (en) * | 2018-04-28 | 2018-09-28 | 北京航天发射技术研究所 | A kind of atomization nozzle and the atomization nozzle using the atomization nozzle |
| CN109723592A (en) * | 2019-03-25 | 2019-05-07 | 石田 | Cylinder internal pressure mist jet device |
| CN111744692A (en) * | 2020-06-16 | 2020-10-09 | 山东同智创新能源科技股份有限公司 | Explosion-proof atomizing spray gun capable of being applied to environment-friendly treatment of coal-to-ethylene glycol waste liquid |
| CN112316885A (en) * | 2020-09-29 | 2021-02-05 | 中国船舶重工集团公司第七一一研究所 | Gas-liquid distribution device and reaction tower |
| CN113101875A (en) * | 2020-01-13 | 2021-07-13 | 中国石油天然气集团有限公司 | Gas-liquid distributor |
| CN113734445A (en) * | 2021-09-02 | 2021-12-03 | 广西电网有限责任公司百色供电局 | Unmanned aerial vehicle electrified rust removal device and operation method thereof |
| CN114789097A (en) * | 2022-05-07 | 2022-07-26 | 中铝郑州有色金属研究院有限公司 | Double-medium gas-liquid two-phase flow mixing device |
| CN114789097B (en) * | 2022-05-07 | 2024-05-31 | 中铝郑州有色金属研究院有限公司 | Double-medium gas-liquid two-phase flow mixing device |
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2009
- 2009-01-08 CN CNA2009100953478A patent/CN101491794A/en active Pending
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2012058809A1 (en) * | 2010-11-04 | 2012-05-10 | 浙江大学 | Adjustable fluid jet apparatus |
| 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 |
| CN102160964B (en) * | 2011-02-18 | 2013-06-05 | 中国航天科技集团公司第六研究院第十一研究所 | Selective non-catalytic reduction (SNCR) denitration multi-nozzle long-gun injector |
| CN102160964A (en) * | 2011-02-18 | 2011-08-24 | 中国航天科技集团公司第六研究院第十一研究所 | Selective non-catalytic reduction (SNCR) denitration multi-nozzle long-gun injector |
| CN102836792A (en) * | 2011-06-20 | 2012-12-26 | 杭州银轮科技有限公司 | Spray nozzle for post-treatment urea SCR (Silicon Controlled Rectifier) system of diesel engine |
| CN102840014A (en) * | 2011-06-20 | 2012-12-26 | 杭州银轮科技有限公司 | Air-assisted injection system for diesel engine urea after-treatment SCR (Selective Catalytic Reduction) system |
| CN102240618A (en) * | 2011-06-27 | 2011-11-16 | 无锡西姆莱斯石油专用管制造有限公司 | Adjustable borax nozzle foundation device |
| CN103007869B (en) * | 2011-09-20 | 2015-02-25 | 中国石油化工股份有限公司 | Three liquid phase material feeding nozzle for caprolactam rearrangement reaction |
| CN103007869A (en) * | 2011-09-20 | 2013-04-03 | 中国石油化工股份有限公司 | Three liquid phase material feeding nozzle for caprolactam rearrangement reaction |
| CN103008136A (en) * | 2012-12-28 | 2013-04-03 | 山西泰来鸿纳科技有限公司 | Atomizer for air purification |
| CN103240207B (en) * | 2013-05-15 | 2015-10-28 | 清华大学 | A kind of injector |
| WO2014183473A1 (en) * | 2013-05-15 | 2014-11-20 | 清华大学 | Ejector |
| CN103406219A (en) * | 2013-05-31 | 2013-11-27 | 中国商用飞机有限责任公司 | Water atomization spraying rake |
| CN103406219B (en) * | 2013-05-31 | 2016-08-24 | 中国商用飞机有限责任公司 | A kind of water atomization spraying rake |
| CN103464318A (en) * | 2013-09-26 | 2013-12-25 | 无锡美灵数码科技有限公司 | Fine spray nozzle |
| CN103464318B (en) * | 2013-09-26 | 2015-12-02 | 无锡美灵数码科技有限公司 | Fine nozzle |
| CN105344539A (en) * | 2014-08-21 | 2016-02-24 | 梁红燕 | Aroma atomizing device |
| CN104399615A (en) * | 2014-10-31 | 2015-03-11 | 中国神华能源股份有限公司 | Atomization injection device |
| CN105251629A (en) * | 2015-11-03 | 2016-01-20 | 吉首大学 | Water rotating gas direct spraying type pole plate spraying washing device |
| CN106076685A (en) * | 2016-07-27 | 2016-11-09 | 无锡宙斯环保喷雾设备制造有限公司 | A kind of two-fluid spray spray gun |
| CN106076685B (en) * | 2016-07-27 | 2018-11-16 | 无锡宙斯环保喷雾设备制造有限公司 | A kind of two-fluid spray spray gun |
| CN106076136A (en) * | 2016-08-09 | 2016-11-09 | 刘文白 | A kind of on-the-spot mixing arrangement for barged-in fill Yu solidification intensifier |
| CN107158912A (en) * | 2017-05-09 | 2017-09-15 | 东莞市大能环保科技有限公司 | A kind of high-temperature steam is atomized denitrification apparatus |
| CN107178409A (en) * | 2017-06-02 | 2017-09-19 | 中国北方发动机研究所(天津) | A kind of external mix formula rotary atomizing nozzle |
| CN108102754A (en) * | 2017-12-15 | 2018-06-01 | 浙江海洋大学 | A kind of gas hydrates reaction unit |
| CN108580076A (en) * | 2018-04-28 | 2018-09-28 | 北京航天发射技术研究所 | A kind of atomization nozzle and the atomization nozzle using the atomization nozzle |
| CN109723592A (en) * | 2019-03-25 | 2019-05-07 | 石田 | Cylinder internal pressure mist jet device |
| CN113101875A (en) * | 2020-01-13 | 2021-07-13 | 中国石油天然气集团有限公司 | Gas-liquid distributor |
| CN113101875B (en) * | 2020-01-13 | 2022-10-04 | 中国石油天然气集团有限公司 | Gas-liquid distributor |
| CN111744692A (en) * | 2020-06-16 | 2020-10-09 | 山东同智创新能源科技股份有限公司 | Explosion-proof atomizing spray gun capable of being applied to environment-friendly treatment of coal-to-ethylene glycol waste liquid |
| CN112316885A (en) * | 2020-09-29 | 2021-02-05 | 中国船舶重工集团公司第七一一研究所 | Gas-liquid distribution device and reaction tower |
| CN113734445A (en) * | 2021-09-02 | 2021-12-03 | 广西电网有限责任公司百色供电局 | Unmanned aerial vehicle electrified rust removal device and operation method thereof |
| CN113734445B (en) * | 2021-09-02 | 2023-10-31 | 广西电网有限责任公司百色供电局 | Unmanned aerial vehicle electrified rust removing device and operation method thereof |
| CN114789097A (en) * | 2022-05-07 | 2022-07-26 | 中铝郑州有色金属研究院有限公司 | Double-medium gas-liquid two-phase flow mixing device |
| CN114789097B (en) * | 2022-05-07 | 2024-05-31 | 中铝郑州有色金属研究院有限公司 | Double-medium gas-liquid two-phase flow mixing device |
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Application publication date: 20090729 |