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Concurrent flow ultrasonic oxygen-iodine mixing nozzle

A supersonic, parallel flow technology, used in laser parts, electrical components, lasers, etc., to solve problems such as slow pipeline flow rate and O2 loss

Active Publication Date: 2014-06-25
DALIAN INST OF CHEM PHYSICS CHINESE ACAD OF SCI
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Problems solved by technology

The main advantage of these gases as carrier gases is lower cost, but since the molecular weight of these gases is greater than that of helium, the flow rate in the pipeline is correspondingly slower. , will cause greater O2(a1Δ) loss, so in this case, supersonic injection of iodine is an inevitable choice

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  • Concurrent flow ultrasonic oxygen-iodine mixing nozzle

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Embodiment Construction

[0049] A parallel-flow supersonic oxygen-iodine mixing nozzle is used for supersonic iodine-injected oxygen-iodine chemical laser light operation or parallel-flow supersonic mixed flow field research. Its main components are ( figure 1 ): Nozzle main body 1, upper flange 2, lower flange 3, oxygen nozzle 4, iodine nozzle 5, heating hole 6, disturbance fin 7.

[0050] An upper flange (2) and a lower flange 3 are respectively provided on the nozzle main body 1 of the inlet of the oxygen nozzle 4 and the outlet of the oxygen nozzle 4. The upper flange adopts a sinking design, that is, the connection surface between the upper flange and the main body is located at Below the outlet plane of the nozzle; in this way, when connecting with the upper test section, the lowest visible surface of the window of the test section can be flush with the outlet of the nozzle to facilitate the flow field test research; the lower flange 3 is connected to the singlet oxygen generator connect.

[0...

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Abstract

The invention relates to a concurrent flow ultrasonic oxygen-iodine mixing nozzle for research into light extraction operation of an ultrasonic iodine-injected chemical oxygen-iodine laser or a concurrent flow ultrasonic mixed flow field. The nozzle is mainly characterized in that an oxygen air flow and an iodine air flow are both ultrasonic and are subjected to concurrent flow mixing; an iodine nozzle outlet is provided with two rows of special disturbance fins for enhancing a mixing effect; through a flange sinking design on a nozzle module, it is ensured that a flow field is visual after flowing along a flow direction nozzle outlet, and the test research on a mixed flow field is facilitated. For realizing the aforementioned functional characteristics of the nozzle, a specific processing technology process is designed. Compared to a subsonic-speed transverse flow iodine-injected mixing nozzle commonly used on a conventional chemical oxygen-iodine laser, the iodine injection mode and structural design of the nozzle provided by the invention are novel, and convenience is provided for the design research on an ultrasonic iodine-injected chemical oxygen-iodine laser and the research on a concurrent flow ultrasonic mixed flow field.

Description

technical field [0001] The invention relates to a parallel-flow supersonic oxygen-iodine mixing nozzle, which is used for the light-emitting operation of an oxygen-iodine chemical laser for supersonic injection of iodine or the research of parallel-flow supersonic mixed flow field. Background technique [0002] The current common supersonic oxygen iodine chemical laser (COIL) generally uses iodine and its carrier gas to be injected into the subsonic section upstream of the nozzle throat. Iodine injection in the subsonic section can achieve better mixing of the injected iodine and the main oxygen flow, and the dissociation of I2 can be realized in the highly diluted O2(a1Δ) flow with helium. These gain media are then expanded in a supersonic nozzle to lower the gas flow temperature, thereby lowering the threshold yield of O2(a1Δ) required to achieve population inversion and positive gain. This method has been successfully applied in many high-efficiency COIL devices. Howeve...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01S3/0953H01S3/225
Inventor 王增强回晓康张岳龙徐明秀张朋于海军汪健房本杰多丽萍桑凤亭金玉奇
Owner DALIAN INST OF CHEM PHYSICS CHINESE ACAD OF SCI
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