CN105327628A - Low-flow-resistance swirling diffusion gas-liquid mixer - Google Patents
Low-flow-resistance swirling diffusion gas-liquid mixer Download PDFInfo
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- CN105327628A CN105327628A CN201510850067.9A CN201510850067A CN105327628A CN 105327628 A CN105327628 A CN 105327628A CN 201510850067 A CN201510850067 A CN 201510850067A CN 105327628 A CN105327628 A CN 105327628A
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Abstract
The invention provides a low-flow-resistance swirling diffusion gas-liquid mixer. One end of a mixer housing is a liquid inlet, and the other end of the mixer housing is an outlet; a swirler is arranged inside the liquid inlet; the end part of the swirler is connected with a porous diffuser; the other end of the porous diffuser is connected with a porous arc-shaped baffle plate; a gas inlet is formed in the mixer housing at the porous diffuser; the middle of the inner part of the mixer housing is provided with three groups of long rib mixing units which are arranged in a staggered mode; each group of long rib mixing units consists of two semicircular ribs which are perpendicular to each other; two adjacent staggered long rib mixing units are reverse in rib rotation direction. The low-flow-resistance swirling diffusion gas-liquid mixer provided by the invention is arranged in front of a head part of a thrust chamber of a rocket engine and is used for heat exchange and mixing of two fuels to form gas flow with a uniform temperature and stable speed; the gas flow enters the thrust chamber for combustion.
Description
Technical field
The present invention relates to aerospace field, particularly relate to the high temperature difference large discharge mixing arrangement in low-temperature working parts, be specifically related to a kind of low flow resistance eddy flow diffusion air and liquid mixer.
Background technology
Blender is widely used in the every field of daily life, research and production, as petrochemical industry, Aero-Space and all kinds of testing equipment, in order to industrial operation processes such as strengthening mixing, heat transfer, absorption and heterogeneous reactions.The operation principle of blender relies on to be assembled in inner mixed cell effect, makes two kinds of fluids mutual blending, heat exchange when blender flows inside, speed uniform medium unified in outlet formation temperature.For space product, rocket engine is as the core component of rocket system, and the high reliability of its work is based upon on the high stability basis of fuel supply.The inner in-line arrangement tab construction of the many employings of existing blender, namely two kinds of fluids produce disturbance when flowing around fin, shunt, collaborate, motion that rotation etc. is complicated, impel two kinds of fluids all to reach good dispersion.Because fin is in-line arrangement mode, two kinds of fluid turbulent degree are low, and mixing, heat exchange is insufficient, and muzzle velocity, temperature uniformity are difficult to ensure, are unfavorable for the supply that fuel stabilization is homogeneous.
Summary of the invention
The technical problem to be solved in the present invention is: the deficiency improving existing structure, the problem that solution mixer outlet gas temperature, speed are uneven, a kind of low flow resistance eddy flow diffusion air and liquid mixer is provided, strengthens mixed effect from structural design, ensure that fuel supply is more reliable and more stable.
Realize the technical scheme of the object of the invention: a kind of low flow resistance eddy flow diffusion air and liquid mixer, this mixer case one end is liquid inlet, and the other end is outlet; Arrange pipe cyclone in inside, liquid inlet, the end of pipe cyclone connects porous air diffuser, and the other end of porous air diffuser connects porous curved baffle; The mixer case of porous air diffuser position offers gas access; Three groups of wrong platoon leader's fin mixed cells are set at mixer case bosom place, often organize wrong platoon leader's fin mixed cell and be made up of orthogonal two pieces of semi-circular fins, and the fin direction of rotation of adjacent two wrong platoon leader's fin mixed cells are contrary; During work, liquid enters from liquid inlet, be divided into two after flowing through pipe cyclone, and flow into porous air diffuser to rotate, gas enters from gas access, flow through porous curved baffle, gas carries out diffusion with the liquid flowed out in porous air diffuser after slowing down and mixes, three groups of wrong row's fin mixed cells are entered successively through preliminary mixed gas-liquid, gas-liquid is forced eddy flow and is divided into two fluids, and twice flow direction occurs gas-liquid changes, turbulent closure scheme, the mixture of final formation temperature, uniform composition flows out from outlet.
One as above low flow resistance eddy flow diffusion air and liquid mixer, the porous curved baffle described in it offers some row's apertures.
Remarkable result of the present invention is: low flow resistance eddy flow diffusion air and liquid mixer of the present invention, adds entrance pipe cyclone, mixed and become eddy flow mixing, improve two kinds of fluid turbulent degree, enhance mixed effect from single diffusion; Add porous air diffuser and arcuated porous baffle plate, improve diffusion velocity, extend incorporation time; Have changed fin arrangement mode and length, add irregular disturbance, cause larger turbulence intensity., estimate and verification experimental verification through numerical simulation, outlet pressure is comparatively reduced to 3% under inlet pressure meanwhile.So be referred to as low flow resistance eddy flow diffusion air and liquid mixer.Low flow resistance eddy flow diffusion air and liquid mixer of the present invention is before thrust chamber's head, and for heat exchange, the mixing of two-way fuel, homogeneous, the speed stable air-flow of formation temperature, enters thrust chamber and burn.Through repeatedly heat examination examination checking, technical feasibility, mixer outlet temperature uniformity significantly improves, and by regulating two-way fluid flow, can realize outlet temperature adjustable (± 60 DEG C).
Accompanying drawing explanation
Fig. 1 is one of the present invention low flow resistance eddy flow diffusion air and liquid mixer structural representation.
Fig. 2 is porous curved baffle schematic diagram.
In figure: 1. liquid inlet; 2. pipe cyclone; 3. porous air diffuser; 4. gas access; 5. porous curved baffle; 6. wrong row's fin mixed cell; 7. export.
Detailed description of the invention
Below in conjunction with drawings and the specific embodiments, one of the present invention low flow resistance eddy flow diffusion air and liquid mixer is described in further detail.
As shown in Figure 1, one of the present invention low flow resistance eddy flow diffusion air and liquid mixer, this mixer case one end is liquid inlet 1, and the other end is outlet 7; Arrange pipe cyclone 2 in inside, liquid inlet 1, the end of pipe cyclone 2 connects porous air diffuser 3, and the other end of porous air diffuser 3 connects porous curved baffle 5; The mixer case of porous air diffuser 3 position offers gas access 4;
Three groups of wrong platoon leader's fin mixed cells 6 are set at mixer case bosom place, often organize wrong platoon leader's fin mixed cell 6 to be made up of orthogonal two pieces of semi-circular fins, and the fin direction of rotation of adjacent two wrong platoon leader's fin mixed cells 6 is contrary, add mixing intensity, improve mixing uniformity.
During work, liquid enters from liquid inlet 1, is divided into two after flowing through pipe cyclone 2, produces radial rotary speed, and the two strands of liquid playing supination, by the aperture on porous air diffuser 3, accelerate diffusion; Gas enters from gas access 4, flow through porous curved baffle 5, gas carries out diffusion with the liquid flowed out in porous air diffuser 3 after slowing down and mixes, three groups of wrong row's fin mixed cells 6 are entered successively through preliminary mixed gas-liquid, gas-liquid is forced eddy flow and is divided into two fluids, and twice flow direction occurs gas-liquid changes, and turbulent closure scheme, the mixture of final formation temperature, uniform composition flows out from outlet 7.
As shown in Figure 2, described porous curved baffle 5 offers some row's apertures.Described porous curved baffle, reduces gas flow rate, extends the gas-liquid mixed time and reaches current balance function.
Low flow resistance eddy flow diffusion air and liquid mixer of the present invention, solves the problem of mixer outlet lack of uniformity.First, increase pipe cyclone 2 at the original liquid-inlet of blender, make liquid in rotation by the effect of pipe cyclone 2, produce radial velocity; Arrange porous air diffuser 3 in pipe cyclone 2 downstream, liquid is increased further by flow velocity radial during aperture, strengthening liquid mixes with spreading between gas; Porous curved baffle is set in downstream, gas access, in order to disturbance gas, reduces gas flow rate, extend the gas-liquid mixed time, optimize blending; Existing in-line arrangement short wing panels is changed to wrong platoon leader's fin, improves fluid turbulent degree from structural design.By eddy flow, diffusion, realize two kinds of fluids fast, Homogeneous phase mixing.
Claims (2)
1. a low flow resistance eddy flow diffusion air and liquid mixer, is characterized in that: this mixer case one end is liquid inlet (1), and the other end is outlet (7); In liquid inlet (1) inside, pipe cyclone (2) is set, the end of pipe cyclone (2) connects porous air diffuser (3), and the other end of porous air diffuser (3) connects porous curved baffle (5);
The mixer case of porous air diffuser (3) position offers gas access (4);
Three groups of wrong platoon leaders's fin mixed cell (6) are set at mixer case bosom place, often organize wrong platoon leader's fin mixed cell (6) to be made up of orthogonal two pieces of semi-circular fins, and the fin direction of rotation of adjacent two wrong platoon leader's fin mixed cells (6) is contrary;
During work, liquid enters from liquid inlet (1), be divided into two after flowing through pipe cyclone (2), and flow into porous air diffuser (3) to rotate, gas enters from gas access (4), flow through porous curved baffle (5), carry out diffusion with the liquid flowed out in porous air diffuser (3) after gas slows down to mix, three groups of wrong rows's fin mixed cell (6) are entered successively through preliminary mixed gas-liquid, gas-liquid is forced eddy flow and is divided into two fluids, and twice flow direction occurs gas-liquid changes, turbulent closure scheme, final formation temperature, the mixture of uniform composition flows out from outlet (7).
2. one according to claim 1 low flow resistance eddy flow diffusion air and liquid mixer, is characterized in that: described porous curved baffle (5) offers some row's apertures.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510850067.9A CN105327628B (en) | 2015-11-27 | 2015-11-27 | A kind of low flow resistance eddy flow diffusion air and liquid mixer |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510850067.9A CN105327628B (en) | 2015-11-27 | 2015-11-27 | A kind of low flow resistance eddy flow diffusion air and liquid mixer |
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| CN105327628A true CN105327628A (en) | 2016-02-17 |
| CN105327628B CN105327628B (en) | 2017-08-25 |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106139945A (en) * | 2016-06-27 | 2016-11-23 | 重庆赛宝工业技术研究院 | There is the flue gas mixing arrangement of low choked flow |
| CN107096405A (en) * | 2017-06-08 | 2017-08-29 | 江苏天宇石化冶金设备有限公司 | A kind of high efficient gas and liquid blender |
| CN108905661A (en) * | 2018-07-27 | 2018-11-30 | 东北石油大学 | A kind of pipe gas liquid mixer and oil field recharged waste water expose oxygen method |
| CN110030114A (en) * | 2019-03-22 | 2019-07-19 | 西安航天动力研究所 | A kind of power oscillation damping high efficiency burnt gas mixing structure |
| CN110201589A (en) * | 2019-05-10 | 2019-09-06 | 清华大学 | A kind of micro-mixer of the dispersant liquid drop in highly viscous fluid or bubble |
| CN111841351A (en) * | 2019-04-24 | 2020-10-30 | 中石化广州工程有限公司 | Natural gas drag reducer atomizing device |
| CN113856505A (en) * | 2021-10-14 | 2021-12-31 | 哈维(上海)环境科技有限公司 | Method for feeding high-concentration oxygen-enriched solution by adopting oxygen-enriched solution feeding system |
| CN115463566A (en) * | 2022-09-29 | 2022-12-13 | 上海蕙黔新材料科技有限公司 | Oxygen mixer for gas phase carbonyl synthesis of dimethyl carbonate |
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| US6830370B1 (en) * | 2000-11-28 | 2004-12-14 | Ohr Co., Ltd. | Cavitation generating device and fluid mixing device using the device |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106139945A (en) * | 2016-06-27 | 2016-11-23 | 重庆赛宝工业技术研究院 | There is the flue gas mixing arrangement of low choked flow |
| CN107096405A (en) * | 2017-06-08 | 2017-08-29 | 江苏天宇石化冶金设备有限公司 | A kind of high efficient gas and liquid blender |
| CN108905661A (en) * | 2018-07-27 | 2018-11-30 | 东北石油大学 | A kind of pipe gas liquid mixer and oil field recharged waste water expose oxygen method |
| CN108905661B (en) * | 2018-07-27 | 2021-04-27 | 东北石油大学 | Pipe flow gas-liquid mixer and oil field reinjection sewage oxygen exposure method |
| CN110030114A (en) * | 2019-03-22 | 2019-07-19 | 西安航天动力研究所 | A kind of power oscillation damping high efficiency burnt gas mixing structure |
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| CN110201589A (en) * | 2019-05-10 | 2019-09-06 | 清华大学 | A kind of micro-mixer of the dispersant liquid drop in highly viscous fluid or bubble |
| CN110201589B (en) * | 2019-05-10 | 2020-09-11 | 清华大学 | Micro mixer for dispersing liquid drops or bubbles in high-viscosity fluid |
| CN113856505A (en) * | 2021-10-14 | 2021-12-31 | 哈维(上海)环境科技有限公司 | Method for feeding high-concentration oxygen-enriched solution by adopting oxygen-enriched solution feeding system |
| CN115463566A (en) * | 2022-09-29 | 2022-12-13 | 上海蕙黔新材料科技有限公司 | Oxygen mixer for gas phase carbonyl synthesis of dimethyl carbonate |
| CN115463566B (en) * | 2022-09-29 | 2023-09-26 | 上海蕙黔新材料科技有限公司 | Oxygen mixer for synthesizing dimethyl carbonate by gas phase method carbonyl |
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| CN105327628B (en) | 2017-08-25 |
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