Testing apparatus capable of simulating high-temperature corrosion

A high-temperature corrosion and test device technology, which is applied in measurement devices, weather resistance/light resistance/corrosion resistance, instruments, etc. Problems such as the low degree of intelligent automation

Active Publication Date: 2018-04-27
NORTHEASTERN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] However, the existing continuous weighing simulation device is limited to high-temperature gas corrosion research of materials, and there is no continuous measurement test device that can simulate the coexistence of high-temperature gas corrosion and high-temperature salt corrosion.
At the same time, the existing continuous weighing simulation test device has a low degree of intelligence and automation, and cannot display the results of the corrosion kinetic curve during t

Method used

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  • Testing apparatus capable of simulating high-temperature corrosion
  • Testing apparatus capable of simulating high-temperature corrosion
  • Testing apparatus capable of simulating high-temperature corrosion

Examples

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Comparison scheme
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Embodiment 1

[0073] This example mainly simulates the high-temperature corrosion experiment in which various sedimentary salts coexist in the waste incineration environment, and specifically includes the following steps:

[0074] Step 1: Turn on the cooling water switch and the power supply of the electric control cabinet, set the temperature raising program in the special control software, and raise the temperature in the heating furnace 19 to 800°C.

[0075] Step 2: Input the ascent speed and ascent distance as 1m / min and 0.5m respectively in the special control software, and lift the weighing device box 10 . Evenly coat the surface of super austenitic stainless steel 254SMO sample 26 with salt (40% NaCl+40% KCl+10% Na 2 SO 4+10%K 2 SO 4 ) into the corundum crucible and hung on the bottom end of the hanging wire 18 connected to the weighing device 11. In the dedicated control software, input the descending speed and the descending distance as 1m / min and 0.5m respectively, drop the we...

Embodiment 2

[0080] This embodiment mainly simulates the high-temperature corrosion experiment in which various gases coexist in the garbage incineration environment, and specifically includes the following steps:

[0081] Step 1: Turn on the cooling water switch and the power supply of the electric control cabinet, set the temperature raising program in the special control software, and raise the temperature in the heating furnace 19 to 800°C.

[0082] Step 2: Input the ascent speed and ascent distance as 1m / min and 0.5m respectively in the special control software, and lift the weighing device box 10 . The super austenitic stainless steel 254SMO sample 26 is hung on the bottom end of the hanging wire 18 connected to the weighing device 11 . In the dedicated control software, input the descending speed and the descending distance as 1m / min and 0.5m respectively, drop the weighing device case 10, lock and seal the first sealing flange 20 connecting the weighing device case 10 and the furna...

Embodiment 3

[0089] This example mainly simulates the high-temperature corrosion experiment in which various gases and deposited salts coexist in the garbage incineration environment, specifically including the following steps:

[0090] Step 1: Turn on the cooling water switch and the power supply of the electric control cabinet, set the temperature raising program in the special control software, and raise the temperature in the heating furnace 19 to 800°C.

[0091] Step 2: Input the ascent speed and ascent distance as 1m / min and 0.5m respectively in the special control software, and lift the weighing device box 10 . Evenly coat the surface of super austenitic stainless steel 254SMO sample 26 with salt (40% NaCl+40% KCl+10% Na 2 SO 4 +10%K 2 SO 4 ) into the corundum crucible and hung on the bottom end of the hanging wire 18 connected to the weighing device 11. In the dedicated control software, input the descending speed and the descending distance as 1m / min and 0.5m respectively, dro...

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Abstract

The invention relates to a testing apparatus capable of simulating high-temperature corrosion. The testing apparatus comprises a high-temperature corrosion system, a gas supply system, an electronic control system and an exhaust gas treatment system, wherein the high-temperature corrosion system comprises a heating furnace and a weighing device; the surface of a sample can be selectively coated with a variety of corrosive salt layers; the gas supply system can selectively input various corrosive gases into the heating furnace; the electronic control system comprising a weight recording unit and a displaying unit; the weight recording unit can record the real-time weight of the sample and calculate the weight gain of sample; the display unit can display an obtained kinetic curve of high-temperature corrosion; and the exhaust gas treatment system can recover the corrosive gases from the heating furnace. The testing apparatus of the invention is highly intelligent and automatic, and can display real-time kinetic curves of corrosion during simulated corrosion testing, so the system is well guaranteed in convenient study of the high-temperature corrosion behaviors and corrosion mechanisms of metal materials in environments with coexisting high-temperature gases, high-temperature salts and various corrosive media.

Description

technical field [0001] The invention relates to the technical field of corrosion simulation, in particular to a test device for simulating high-temperature corrosion. Background technique [0002] With the progress of human civilization, the continuous growth of population, and the continuous improvement of human living standards, urbanization levels, and industrial levels, various types of waste such as domestic waste, urban waste, and industrial waste are also increasing day by day, and the disposal of these wastes also increasingly severe. Waste incineration treatment is an effective means to realize the harmlessness, reduction and recycling of solid waste. It has good social and economic benefits and has been paid more and more attention by people. However, HCl, Cl 2 , SO 2 , CO and other corrosive gases and NaCl, KCl, Na 2 SO 4 、K 2 SO 4 Metal deposits such as salt cause serious high-temperature corrosion to the superheater and water wall of the incineration equi...

Claims

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Application Information

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IPC IPC(8): G01N17/00
CPCG01N17/006
Inventor 张树才李花兵姜周华张彬彬苑胜龙冯浩朱红春常朋飞李志兴吴敬玺
Owner NORTHEASTERN UNIV
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