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Experiment device for simulating atomic oxygen oxidation ground of super-high temperature heat-protection material

A heat-proof material, ground simulation technology, applied in material excitation analysis, mechanical excitation analysis, etc.

Active Publication Date: 2011-09-07
HARBIN INST OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In order to solve the problem that there is no experimental device for simulating the high temperature, low pressure and atomic oxygen oxidation of ultra-high temperature heat-resistant materials in real service environments, the present invention further provides a ground simulation experimental device for atomic oxygen oxidation of ultra-high temperature heat-resistant materials

Method used

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  • Experiment device for simulating atomic oxygen oxidation ground of super-high temperature heat-protection material
  • Experiment device for simulating atomic oxygen oxidation ground of super-high temperature heat-protection material
  • Experiment device for simulating atomic oxygen oxidation ground of super-high temperature heat-protection material

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specific Embodiment approach 1

[0007] combine figure 1 , Figure 5 Describe this embodiment, it comprises quartz tube 1, atomic oxygen generator 2, electromagnetic induction heating device 3 and pressure control device 4, and the atomic oxygen output end of atomic oxygen generator 2 is connected to the atomic oxygen input of quartz tube 1 The air output end of the quartz tube 1 is connected to the air input end of the pressure control device 4, and the output end of the electromagnetic induction heating device 3 is respectively connected to an input end of the induction heating coil 9 sleeved on the outer wall of the middle part of the quartz tube 1.

[0008] This experimental device is an experimental device that can reproduce the environment of high temperature, low pressure, and atomic oxygen during the flight of a hypersonic vehicle, and it is an experimental device for studying the oxidation behavior of conductive heat-resistant materials. ℃, and the pressure ranges from 10 to 5000Pa, the device can g...

specific Embodiment approach 2

[0009] combine figure 2 , Figure 5 Describe this embodiment, the atomic oxygen generator 2 of this embodiment comprises an oxygen cylinder 18, a pressure reducing valve 17, a flow control valve 14, a microwave generator 5, a jet flow control valve 15 and an excitation chamber 16, and the output end of the oxygen cylinder 18 is connected At the input end of the pressure reducing valve 17, the output end of the pressure reducing valve 17 is connected to the input end of the flow control valve 14, and the oxygen output end of the flow control valve 14 is connected to the oxygen input end of the microwave generator 5, and the oxygen output end of the microwave generator 5 The output end is connected to the input end of the jet control valve 15 , the output end of the jet control valve 15 is connected to the input end of the excitation chamber 16 , and the output end of the excitation chamber 16 is connected to the atomic oxygen input end of the quartz tube 1 . Other components ...

specific Embodiment approach 3

[0010] combine image 3 , Figure 5 Describe this embodiment, the pressure control device 4 of this embodiment includes a vacuum pump 10, an exhaust pipe 11, a thermocouple vacuum gauge 12 and a pressure-sensitive vacuum gauge 13, the air output end of the quartz tube 1 is connected to the air input end of the vacuum pump 10, The air output end of the vacuum pump 10 is connected to the air input end of the exhaust pipe 11 , and the internal pressure signal output end of the quartz tube 1 is respectively connected to the input ends of the thermocouple vacuum gauge 12 and the pressure sensitive vacuum gauge 13 . Other components and connections are the same as those in Embodiment 1.

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Abstract

The invention relates to an experiment device for simulating atomic oxygen oxidation ground of a super-high temperature heat-protection material, and the device provided by the invention can be used for solving the problem that no device capable of simulating the high-temperature, low-pressure and atomic oxygen oxidation environments exists, and is suitable for simulating the atomic oxygen oxidation environment of the super-high temperature heat-protection material in different states. The experiment device provided by the invention comprises a quartz tube, an atomic oxygen generating device,an electromagnetic induction heating device and a pressure control device, wherein the output end of the atomic oxygen generating device is connected to the atomic oxygen input end of the quartz tube; the air output end of the quartz tube is connected with the air input end of the pressure control device; and the output end of the heating device is respectively connected with one input end of theinduction heating coil which is sheathed on the external wall of the middle of the quartz tube. The experiment device provided by the invention meets the experiment requirements of the atomic oxygen oxidation of the heat-protection material of a hypersonic aircraft at the temperature of 1000-2000 DEG C and the pressure of 10-5000Pa and is suitable for the oxidation action research under the atomic oxygen environment of the high-temperature material.

Description

technical field [0001] The invention relates to a ground simulation experiment device for atomic oxygen oxidation of an ultra-high temperature heat-resistant material. Background technique [0002] The reentry speed of the earth orbiter and other planetary probes, such as the lunar probe, is about the first and second cosmic speeds, and the reentry speed of the intercontinental missile warhead is about 7km / s, and the reentry vehicle has a high initial kinetic energy. At the same time, it is affected by the gravitational field of the earth, and it also has extremely high potential energy. As the altitude drops, this energy is converted into kinetic energy, and the aircraft will have a very high flight speed. Compression causes the temperature to rise rapidly, making the surface temperature of the hypersonic vehicle close to 2000°C; during the actual flight of the vehicle, due to the high-speed flight characteristics, the gas on the surface of the vehicle’s structural material...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N21/70
Inventor 孟松鹤金华陈红波白光辉解维华许承海
Owner HARBIN INST OF TECH
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