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Internal rotational flow and external jet flow cross hole ejector

An injector and cross-hole technology, which is applied to the field of inner swirl and outer-jet cross-hole injectors, can solve the problems of lowering the appearance quality of polysilicon, unfavorable product handling and sales, burning flow, etc., and achieves improving fluid mixing uniformity and fogging. effect of fogging effect, strengthening effect of fogging effect

Pending Publication Date: 2022-07-01
DALIAN UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in the process, unqualified polysilicon will be generated, and in severe cases, molten silicon phenomena such as burning will occur, which greatly reduces the appearance quality of polysilicon, which is not conducive to product processing and sales.

Method used

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  • Internal rotational flow and external jet flow cross hole ejector
  • Internal rotational flow and external jet flow cross hole ejector
  • Internal rotational flow and external jet flow cross hole ejector

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] refer to figure 1 As shown, the present invention discloses an inner swirl outer jet cross-hole injector, including an injector body 1; the injector body 1 includes a first cavity 11, a second cavity 12, a third cavity 13, a first cavity The channel 14, the second channel 15 and the third channel 16; the first cavity 11 is arranged in the middle part of the injector body 1; the second cavity 12 is arranged outside the first cavity 11; the third cavity 13 is arranged in the The outside of the two cavities 12 ; the first cavity 11 and the second cavity 12 are communicated through the first channel 14 ; the first cavity 11 , the second cavity 12 and the third cavity 13 are all coaxial.

[0034] The first channel 14 is provided with a total of 3 layers, and each layer is provided with 8, which are evenly distributed around the outer wall of the first cavity 11 in a circular array; the third channel 16 is provided with a total of 8, which is uniformly distributed in the thir...

Embodiment 2

[0040] like Figure 7 As shown, on the premise of setting basically the same as that of Embodiment 1, only the axes of the first channel 14 and the third channel 16 are rotated around the axis of the injector body 1 by a certain angle in the horizontal direction, so that the first channel 14 and the The axis of the third channel 16 does not intersect with the axis of the injector body 1, which further enhances the fluid disturbance and improves the atomization effect.

[0041] In the present invention, the injector body is divided into three cavities for feeding three different fluids. The second fluid enters the second cavity and forms a swirling flow through the second channel, and then injects into the first cavity at a high speed. The first fluid in a cavity collides, strengthens the atomization effect of the first fluid and the second fluid, and is fully mixed. The mixed fluid passes through the second channel and is ejected at high speed, which further enhances the distu...

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Abstract

The invention discloses an inner rotational flow outer jet flow cross hole ejector which comprises a first cavity, a second cavity, a third cavity, a first channel, a second channel and a third channel, the first cavity is communicated with the second cavity through the first channel, a second through hole is formed in the lower end of the first cavity, and a third through hole is formed in the lower end of the third cavity. When fluid is jetted, second fluid enters the second cavity, forms rotational flow through the first through hole to be jetted into the first cavity, collides with the first fluid and is mixed with the first fluid, the mixed fluid generates disturbance through the second through hole, mixed gas turbulence is enhanced, the atomization effect is improved, and meanwhile third fluid enters the third cavity, forms rotational flow through the third through hole and is jetted out. The device is simple in structure and collides with the mixed fluid, the atomization effect is enhanced, the whole device can effectively improve the fluid mixing uniformity and the atomization effect, the spray particle size is reduced by 25% or above under the same spraying pressure, and the fluid evaporation, atomization and mixing efficiency is improved by 50% or above.

Description

technical field [0001] The invention relates to the technical field of ejectors, and more particularly to an inner swirling outer jet cross-hole ejector. Background technique [0002] The ejector is used in many kinds of spraying, spraying, oil spraying, sandblasting, spraying and other equipment, plays an important role, and is a very critical component that affects the effect of fluid atomization. Injectors are widely used in the industry. But at present, most injectors have poor fluid mixing uniformity, large spray particle size, and low fluid evaporation, atomization and mixing efficiency. [0003] For example, in the process of in-cylinder fuel atomization in the field of internal combustion engines, the atomization effect of fuel has a great influence on the fuel combustion effect, which directly affects the emission of pollutants. With the increasingly stringent national emission regulations, the requirements for fuel injectors are becoming more and more stringent. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B05B7/04B05B7/06
CPCB05B7/04B05B7/06
Inventor 隆武强田华崔靖晨田江平陈晓瑜赵成微于聪张振先礼博董东升
Owner DALIAN UNIV OF TECH