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Efficient slotted multi-nozzle enhancing mixing ejector

An ejector and multi-nozzle technology, applied in the field of ejectors, can solve the problems of total pressure loss, increased length of mixing chamber, low ejection efficiency, etc., so as to reduce manufacturing difficulty, reduce exhaust noise, and improve ejection The effect of efficiency

Inactive Publication Date: 2013-06-05
中国空气动力研究与发展中心设备设计及测试技术研究所
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  • Abstract
  • Description
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  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At present, the contact area between the ejected airflow and the ejected airflow of the conventional annular slit type or single nozzle central injection ejector is small, which is not conducive to the mixing of the two airflows, which causes the length of the mixing chamber to increase and the friction loss Larger and lower ejection efficiency, the processing and manufacturing of annular slit ejectors is more difficult
In addition, due to the large difference in air pressure, speed and other parameters of the conventional ejector, the sudden contact of the two air streams will cause a certain total pressure loss.

Method used

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  • Efficient slotted multi-nozzle enhancing mixing ejector
  • Efficient slotted multi-nozzle enhancing mixing ejector
  • Efficient slotted multi-nozzle enhancing mixing ejector

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Embodiment Construction

[0032] Such as figure 1 As shown, a high-efficiency slotted multi-nozzle enhanced mixing ejector, the device includes the following parts:

[0033] 1) Ejector intake main duct 1: This main duct introduces the active airflow that plays a driving role in the ejector;

[0034] 2) Injection intake diversion pipe 2: The diversion duct diverts the airflow injected into the main intake pipe 1 and introduces it symmetrically into the gas collection chamber 3;

[0035] 3) Gas collection chamber 3: The gas collection chamber 3 stabilizes the air flow and supplies air to the injection nozzle 7;

[0036] 4) The air intake pipe 4 of the injection nozzle: the air intake pipe 4 of the nozzle draws air from the gas collection chamber 3 to supply air to the injection nozzle 7;

[0037] 5) Rear rectifying plate 5: the rear rectifying plate 5 is located downstream of the intake pipe 4 of the injection nozzle and is close to the intake pipe, and plays the role of rectification and support;

[...

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Abstract

The invention discloses an efficient slotted multi-nozzle enhancing mixing ejector. The efficient slotted multi-nozzle enhancing mixing ejector is characterized by comprising an inject gas inlet main pipe, an inject gas inlet flow dividing pipe, a gas collecting chamber, an inject nozzle gas inlet pipe, a back rectifying plate, a front rectifying plate, an inject nozzle, a straight slotted section of the inject nozzle, injected air flow gas inlet pipe, a mixing chamber and a diffuser. The efficient slotted multi-nozzle enhancing mixing ejector has the advantages of being high in inject efficiency, relatively small in energy consumption, relatively small in length, relatively low in noise and manufacturing difficulty, capable of using high-temperature etchant gas and the like.

Description

technical field [0001] The invention relates to ejector technology, in particular to an ejector capable of enhancing mixing and improving ejection efficiency. Background technique [0002] At present, the contact area between the ejected airflow and the ejected airflow of the conventional annular slit type or single nozzle central injection ejector is small, which is not conducive to the mixing of the two airflows, which causes the length of the mixing chamber to increase and the friction loss Due to the problems of large size and low injection efficiency, it is difficult to manufacture the annular slit ejector. In addition, due to the large difference in parameters such as airflow pressure and speed in conventional ejectors, the sudden contact of two airflows will cause a certain total pressure loss. Contents of the invention [0003] The purpose of the present invention is to overcome the above technical problems and provide an ejector that can enhance mixing and improv...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F04F5/16F04F5/44
Inventor 廖达雄陈振华任择斌张仕宏解志军张俊生
Owner 中国空气动力研究与发展中心设备设计及测试技术研究所
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