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High-temperature thermal field and complex atmosphere environment static coupling device

An atmosphere environment and coupling device technology, applied in the direction of measuring devices, instruments, scientific instruments, etc., can solve the problems of inability to provide multi-component oxidation and corrosive atmosphere environment, low reliability of test data, single gas composition, etc., to achieve The effect of protecting the body's health, simple and reliable structure, and strong atmosphere simulation ability

Inactive Publication Date: 2015-12-09
CENT SOUTH UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the domestic high-temperature and complex atmosphere environment simulation equipment is still blank. The existing equipment is usually based on a single high-temperature furnace, and the gas composition used is single, which cannot provide a multi-component and composition-controllable oxidizing and corrosive atmosphere environment.
Existing equipment of this type generally has the disadvantages that the simulated environment is greatly different from the actual working conditions, and the reliability of the obtained test data is low.

Method used

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  • High-temperature thermal field and complex atmosphere environment static coupling device
  • High-temperature thermal field and complex atmosphere environment static coupling device
  • High-temperature thermal field and complex atmosphere environment static coupling device

Examples

Experimental program
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Effect test

Embodiment 1

[0028] Utilizing the present invention, the simulated temperature is 1500°C, and the gas composition is N 2 70%, O 2 20%, CO1%, CO 2 8%, SO 2 0.2%, SO 3 0.8% high-temperature gas atmosphere environment: put the sample to be tested in the test dish suspended by the platinum-rhodium alloy suspension wire 18, close the high-temperature atmosphere furnace 13, set the heating program, and wait until the temperature rises to 1500°C and enters the constant temperature stage. Rotate the ferrule three-way valve and close the ferrule ball valve at the same time to switch to the gas environment gas circuit. Open the switch of various types of gas high-pressure gas cylinders 15, connect the power supply of gas mass flow controller 22, set the flow value of various types of gases according to the ratio of the gas composition: N 2 ~350mL / min, O 2 ~100mL / min, CO~5mL / min, CO 2 ~40mL / min, SO 2 ~1mL / min, SO3 ~4mL / min, turn on the duct fan 28 to exhaust the exhaust gas. Data recording an...

Embodiment 2

[0030] Using the present invention to simulate the temperature is 1400°C, air+10%H 2 O water and oxygen environment: put the sample to be tested into the test dish suspended by the platinum-rhodium alloy suspension wire 18, close the high-temperature atmosphere furnace 13, set the temperature rise program, and wait for the temperature to rise to 1400°C and enter the constant temperature stage, then rotate the card Set the three-way valve, and open the ferrule ball valve at the same time, switch to the water-oxygen environment gas circuit. Set the preheating temperature on the gas preheating pipeline thermostat 5 to 100°C, turn on the gas preheating pipeline 4 and preheat for 20 minutes, then turn on the steam generator 1 and set the parameters until the generated humidity is 10% h 2 O. open N 2 and O 2 The gas high-pressure gas cylinder valve is connected to the N installed on the installation base 21 2 and O 2 The power supply of the high-precision gas mass flow control...

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Abstract

A high-temperature thermal field and complex atmosphere environment static coupling device includes a high-temperature atmosphere furnace, a gas circuit control unit and an exhaust gas excluder, the high-temperature atmosphere furnace comprises a heating chamber, the bottom of the heating chamber is provided with a gas inlet, the top of the heating chamber is provided with a gas outlet, the gas inlet of the heating chamber is connected with a gas outlet of the gas circuit control unit by a pipeline, the gas outlet of the heating chamber is connected with the exhaust gas excluder by a pipeline, the outer side of the high-temperature atmosphere furnace is provided with a weight measuring apparatus, a measuring end of the weight measuring apparatus is arranged in the heating chamber, the gas circuit control unit is connected with different gas storage high pressure gas cylinders by separate pipelines, each pipe is provided with a gas mass flow controller, the high-temperature thermal field and complex atmosphere environment static coupling device is simple and reliable in structure, easy to use and maintain, strong in atmosphere simulation capabilities, and high in use temperature, can be used for instant online measuring and recording of data, can be used for accurate and realistic simulation of aero-engine gas environment, chemical heat exchanger and other high-temperature and oxidation and corrosive atmosphere coexist actual working conditions.

Description

technical field [0001] The invention relates to a static coupling device for a high-temperature thermal field and a complex atmosphere environment. Background technique [0002] Thermal structural materials and high-temperature anti-oxidation and anti-corrosion coatings are usually used in strategic industrial fields such as aero-engines, energy, and heavy chemicals. The level of their technology is of great significance for ensuring the healthy development of the national economy and even national security. In addition to high temperature, the actual service conditions of thermal structural materials and high-temperature anti-oxidation and anti-corrosion coatings usually have various corrosive gas components. The coupling of high temperature and complex corrosive atmosphere makes the corrosion and failure mechanism of this kind of material very complicated. It is often a difficult point in the development process of this kind of material to find out the rules in order to gu...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N5/00
Inventor 肖鹏文中流李专
Owner CENT SOUTH UNIV
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