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High-temperature-resistant immersion probe for laser-induced breakdown spectroscopy system

A laser-induced breakdown and spectroscopy system technology, applied in the field of high temperature immersion probes, can solve problems such as lack, and achieve the effects of easy use and maintenance, reduced size, and reduced burden

Active Publication Date: 2016-07-06
UNIV OF SCI & TECH OF CHINA
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Problems solved by technology

[0004] The present invention overcomes the lack of high-temperature-resistant probes designed for laser-induced breakdown spectroscopy devices for metallurgical furnaces under the atmosphere in the prior art, and realizes the automatic temperature control of the multi-layer cavity inside the probe and the combination of rapid displacement and precise positioning. GPS

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  • High-temperature-resistant immersion probe for laser-induced breakdown spectroscopy system
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  • High-temperature-resistant immersion probe for laser-induced breakdown spectroscopy system

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Embodiment Construction

[0016] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0017] The invention provides a high-temperature-resistant immersion probe for laser-induced breakdown spectroscopy system, the principle diagram of which is as follows figure 1 and figure 2 shown. The high temperature resistant pipe 6 is responsible for passing through the slag layer 3 and immersing in the high temperature melt 2; the high temperature resistant pipe sleeve 7 is used to clamp the high temperature resistant pipe 6; the heat shield 8 is used to block the heat transfer from the high temperature resistant pipe 6 to the intermediate protection pipe 11; The outer heat insulation layer 9 is responsible for blocking the radiation heat transfer from the surface of the outer melt 2 to the protective tube 11; the protective tube 11 is used to support the entire probe structure, and has several cooling gas outlets 12; the lower beam open...

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Abstract

The invention discloses a high-temperature-resistant immersion probe for a laser-induced breakdown spectroscopy system. The high-temperature-resistant immersion probe comprises a high-temperature-resistant pipe (6), a high-temperature-resistant pipe sleeve (7), a high-temperature-resistant pipe heat insulation pad (8), an external heat insulation layer (9), a middle protection pipe (11), a sealing sheet, a lens barrel, a rear end box body (20), a temperature sensor (14), an air pressure sensor (16), an air inlet (23), an air outlet (12) and a lead screw drive system (21). The high-temperature-resistant immersion probe has a function of automatically and precisely controlling the temperature of a multilayer temperature control cavity in a high temperature environment and can guarantee stable parameters of an optical element in the probe. By the adoption of a coarse-fine combination two-stage servo control system consisting of a laser distance measurer, a laser-induced breakdown spectroscopy signal and a precision lead screw, quick and accurate positioning required by measurement is realized, the working time of the laser-induced breakdown spectroscopy system is shortened, and burdens on a laser device and a signal processing unit are relieved.

Description

technical field [0001] The invention relates to the field of on-line composition analysis of molten metals, in particular to a high-temperature-resistant immersion probe with automatic temperature control and automatic positioning functions for a laser-induced breakdown spectroscopy composition measurement system. Background technique [0002] The existing technology such as Chinese patent CN101183074A describes a set of molten steel component detection and analysis device, in which the high temperature resistant immersion probe is automatically positioned by the electrode contacting the molten steel, and the optical components of the probe are cooled by air cooling, and the signal box is controlled by a constant temperature device. Constant temperature, using mechanical arm lifting and positioning, the probe shell is a high-temperature resistant metal cylinder, and the outside is coated with high-reflection and high-temperature-resistant materials. The invention points out ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N21/71G01N21/01
CPCG01N21/01G01N21/718G01N21/8507
Inventor 李永新戴海波储从州潮斌王秋平潘从元
Owner UNIV OF SCI & TECH OF CHINA
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