CN2445321Y - Multi-atmosphere high-temp corrosion thermobalance measuring means - Google Patents
Multi-atmosphere high-temp corrosion thermobalance measuring means Download PDFInfo
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- CN2445321Y CN2445321Y CN 00253165 CN00253165U CN2445321Y CN 2445321 Y CN2445321 Y CN 2445321Y CN 00253165 CN00253165 CN 00253165 CN 00253165 U CN00253165 U CN 00253165U CN 2445321 Y CN2445321 Y CN 2445321Y
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- thermobalance
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- reactor
- vacuum valve
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- 230000007797 corrosion Effects 0.000 title claims abstract description 12
- 238000005260 corrosion Methods 0.000 title claims abstract description 12
- 238000010438 heat treatment Methods 0.000 claims abstract description 33
- 238000005259 measurement Methods 0.000 claims description 9
- 238000012545 processing Methods 0.000 claims description 9
- 239000000203 mixture Substances 0.000 claims description 6
- 238000005303 weighing Methods 0.000 claims description 5
- 238000001816 cooling Methods 0.000 claims description 4
- 239000010453 quartz Substances 0.000 claims description 4
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 4
- 239000003708 ampul Substances 0.000 claims description 3
- 239000007789 gas Substances 0.000 description 43
- 238000000034 method Methods 0.000 description 7
- 238000006243 chemical reaction Methods 0.000 description 6
- 238000002474 experimental method Methods 0.000 description 5
- 238000007254 oxidation reaction Methods 0.000 description 4
- 230000003647 oxidation Effects 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 238000003912 environmental pollution Methods 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 238000012544 monitoring process Methods 0.000 description 2
- 239000002341 toxic gas Substances 0.000 description 2
- 230000002411 adverse Effects 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000003628 erosive effect Effects 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- 238000010304 firing Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000691 measurement method Methods 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000004088 simulation Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 238000013022 venting Methods 0.000 description 1
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- Investigating Or Analyzing Materials Using Thermal Means (AREA)
Abstract
The utility model discloses a multi-atmosphere high-temperature corrosion thermobalance measuring device, which comprises a measuring device, a heating device, a gas-mixing device and an exhaust gas treating device. The gas-mixing device is composed of multiple gas cylinders, gas mixing cylinders, an electronic flowmeter, a vacuum pump, etc., wherein, one gas cylinder is connected with a thermobalance in the measuring device orderly through a vacuum valve, a float flowmeter which is connected in parallel with the vacuum valve, and another vacuum valve by vacuum hoses. The rest gas cylinders are connected with the gas mixing cylinder through vacuum valves and the electronic flowmeter. On one hand, the output end of the gas mixing cylinder is connected with a reactor in a heating furnace through vacuum valves, and on the other hand, is separately connected with the vacuum pump and the thermobalance through vacuum valves. The exhaust gas treating device is arranged at the output end of the reactor. The utility model has no pollution and can simulate complicated atmosphere.
Description
The utility model relates to the atmosphere corrosion experimental facilities of controlling reaction atmosphere, specifically is one kind of multiple atmosphere high-temp corrosion thermal balance measuring equipments.
Oxidation mechanism and the oxidation reaction kinetics of research metal or alloy under conditions such as various temperature, gas composition, pressure need carry out oxidation experiment usually.The simplest method of this experiment is exactly that the sample of a known quality and size is placed on appropriate time in the stove, takes out sample then and makes it cooling, and thereafter, the weighing sample is to determine degree of oxidation.Its oxide film phase composition and pattern can be analyzed and be observed with X-ray diffractometer (XRD) and metallographic technique and scanning electron microscope.The degree that reaction is carried out can be weighed with the variation of weight metal and the consumption of reaction system gas.Usually adopt monitoring weightening finish method, wherein have discontinuous and two kinds of methods of continuous coverage, the discontinuous measurement method must use several samples to obtain one group of dynamics data; And continuous mode method just can provide the total overall reaction dynamics data with a sample, when adopting continuous automatic recording balance, can also disclose the many details in the course of reaction.This continuous measuring device also adopts heating furnace, vacuum pump except adopting thermobalance, mainly be at the high temperature corrosion under particular atmosphere, specific environment, yet can not satisfy the demand of measuring for the high temperature corrosion under the multiple complicated atmosphere.
In order to overcome above-mentioned deficiency, the purpose of this utility model provides a kind of pollution-free, multiple atmosphere high-temp corrosion thermal balance measuring equipment that can Simulation of Complex atmosphere.
The technical solution of the utility model is: comprise measurement mechanism and heating arrangement, described measurement mechanism mainly is made up of thermobalance and self-recording device and reactor, described thermobalance, reactor are installed in the vacuum chamber, thermobalance is positioned at the reactor top, described thermobalance has the weighing part that claims example weight to change usefulness, example weight is changed the control section that changes electric signal into be electrically connected with self-recording device; Described heating arrangement is made up of column heating furnace and automatic temperature control instrument, and described heating furnace has long heating zone, and maximum heating temperature reaches 1100 ℃, is installed in the reactor outside, is connected with automatic temperature control instrument; Described heating furnace upper/lower terminal is provided with cooling device; It is characterized in that: also comprise gas mixing device and exhaust gas processing device, described gas mixing device is by a plurality of gas cylinders, mix gas cylinder, electronic flow-meter, suspended body flowmeter and vacuum pump are formed, one of them gas cylinder passes through pipeline successively through vacuum valve, the suspended body flowmeter in parallel with vacuum valve, be connected to thermobalance in air inlet and the measurement mechanism through vacuum valve again, remaining gas cylinder by vacuum hose through vacuum valve, electronic flow-meter is to mixing gas cylinder, the output that mixes gas cylinder is connected to reactor in the heating furnace through vacuum valve on the one hand, on the other hand through vacuum valve respectively to vacuum pump and thermobalance; Described exhaust gas processing device is installed in the reactor output terminal;
Reactor is a quartz ampoule; Be provided with air inlet in the pipeline of described gas mixing device, digital vacuum is taken into account vacuum meter in the thermobalance porch.
The utlity model has following advantage:
1. be widely used.Because the utility model has added gas mixing device, can create multiple complicated atmosphere according to demand, is not limited to certain specific environment, can reappear the complicated aggressive atmosphere of multiple industrial process, applied range.
2. pollution-free.Because the utility model has adopted exhaust gas processing device, to carrying out overall treatment,, after handling, the utility model enters atmosphere again if adopt toxic gas from the combination gas behind the heating furnace internal reaction, avoided environmental pollution.
Fig. 1 is the utility model structural representation.
Below in conjunction with accompanying drawing the structure of the present utility model and the course of work are described in further detail.
As shown in Figure 1, the utility model is made up of measurement mechanism 1, exhaust gas processing device 2, heating arrangement 3 and gas mixing device 4, and wherein measurement mechanism 1 main body comprises Cahn2000 type thermobalance 11 and self-recording device 12.Cahn2000 type thermobalance 11 is made up of weighing part and control section, ready sample is hung into balance and trim, weigh up the variation of example weight during experiment by weighing part, convert electric signal to and pass to self-recording device 12 through control section, get final product the weight change of the sample under the certain experiment condition of continuous monitoring.The precision 0.01mg of balance, maximum load is 3.5g;
Heating arrangement 3 is made up of the heating furnace 31 and the automatic temperature control instrument 32 of column.The heating tape of this heating furnace 31 is longer, and firing rate is fast, and maximum heating temperature can reach 1100 ℃.Automatic temperature control instrument 32 is furnished with electronic display system, can control experimental temperature and time exactly, can set experimental temperature, experimental period, heat time heating time, temperature retention time etc. earlier, and then, 31 in heating furnace is pressed corresponding program heating and insulation.For avoiding the influence of heating furnace 31 temperature to thermobalance 11 and quartz tube reactor 13 two ends grounds, heating furnace 31 inner two ends up and down are equipped with coiling formula cooling device;
Gas mixing device 4 and exhaust gas processing device 2, described gas mixing device 4 is by a plurality of gas cylinders 41, mix gas cylinder 42, electronic flow-meter 43, suspended body flowmeter 44 and vacuum pump 45 are formed, one of them gas cylinder 41 passes through pipeline successively through vacuum valve, the suspended body flowmeter 44 in parallel with vacuum valve, be connected to thermobalance 11 in air inlet and the measurement mechanism 1 through vacuum valve again, remaining gas cylinder 41 by vacuum hose through vacuum valve, electronic flow-meter 43 is to mixed gas cylinder 42, the output that mixes gas cylinder 42 is connected to reactor 13 in the heating furnace 31 through vacuum valve on the one hand, on the other hand through vacuum valve respectively to vacuum pump 45 and thermobalance 11; Described exhaust gas processing device 2 is installed in reactor 13 output terminals;
Be provided with air inlet 46, digital vacuum meter 47 and vacuum meter 48 in the pipeline of described gas mixing device 4 in thermobalance 11 porch.
The utility model groundwork process is as follows:
Add required all gases in gas cylinder 41 respectively in proportion, present embodiment is established four gas cylinders 41, adds N respectively
2, H
2, CO
2, H
2S; electronic flow-meter 43 in the gas mixing device 4 can accurately be monitored the flow of gas simultaneously; the atmospheric condition required according to experiment; utilize corresponding computed in software to go out the flow of all gases (comprising protection gas) under certain mixed gas flow; after electronic flow-meter 43 controls, enter and mix gas cylinder 42 mixing; feed reactor 13 from the lower end of heating furnace 31, i.e. quartz ampoule in the heating furnace 31.Simultaneously feed of the erosion of the nitrogen of adverse current by the flow that calculates from an end of thermobalance 11 with protection thermobalance 11 corrosion gases along another gas circuit.All be in vacuum state in pipeline before the inflation and the thermobalance 11, in the process of inflation, reflect pressure in pipeline and the thermobalance 11 exactly by digital vacuum meter 47, when external and internal pressure is consistent, open the venting vacuum valve, make the smooth and easy circulation of combination gas, behind exhaust gas processing device 2, enter atmosphere again if adopt toxic gas then to test tail gas, avoided environmental pollution.
Claims (3)
1. one kind of multiple atmosphere high-temp corrosion thermal balance measuring equipments, comprise measurement mechanism (1) and heating arrangement (3), described measurement mechanism (1) mainly is made up of thermobalance (11) and self-recording device (12) and reactor (13), described thermobalance (11), reactor (13) are installed in vacuum chamber (14) lining, thermobalance (11) is positioned at reactor (13) top, described thermobalance (11) has the weighing part that claims example weight to change usefulness, example weight is changed the control section that changes electric signal into be electrically connected with self-recording device (12); Described heating arrangement (3) is made up of column heating furnace (31) and automatic temperature control instrument (32), and described heating furnace (31) has long heating zone, and maximum heating temperature reaches 1100 ℃, is installed in reactor (13) outside, is connected with automatic temperature control instrument (32); Described heating furnace (31) upper/lower terminal is provided with cooling device; It is characterized in that: also comprise gas mixing device (4) and exhaust gas processing device (2), described gas mixing device (4) is by a plurality of gas cylinders (41), mix gas cylinder (42), electronic flow-meter (43), suspended body flowmeter (44) and vacuum pump (45) are formed, one of them gas cylinder (41) passes through pipeline successively through vacuum valve, the suspended body flowmeter in parallel (44) with vacuum valve, be connected to thermobalance (11) in air inlet and the measurement mechanism (1) through vacuum valve again, remaining gas cylinder (41) by vacuum hose through vacuum valve, electronic flow-meter (43) is to mixing gas cylinder (42), the output that mixes gas cylinder (42) is connected to reactor (13) in the heating furnace (31) through vacuum valve on the one hand, on the other hand through vacuum valve respectively to vacuum pump (45) and thermobalance (11); Described exhaust gas processing device (2) is installed in reactor (13) output terminal.
2. according to the described multiple atmosphere high-temp corrosion thermal balance measuring equipment of claim 1, it is characterized in that: reactor (13) is a quartz ampoule.
3. according to the described multiple atmosphere high-temp corrosion thermal balance measuring equipment of claim 1, it is characterized in that: be provided with air inlet (46), digital vacuum meter (47) and vacuum meter (48) in the pipeline of described gas mixing device (4) in thermobalance (11) porch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00253165 CN2445321Y (en) | 2000-11-22 | 2000-11-22 | Multi-atmosphere high-temp corrosion thermobalance measuring means |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00253165 CN2445321Y (en) | 2000-11-22 | 2000-11-22 | Multi-atmosphere high-temp corrosion thermobalance measuring means |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2445321Y true CN2445321Y (en) | 2001-08-29 |
Family
ID=33610672
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 00253165 Expired - Fee Related CN2445321Y (en) | 2000-11-22 | 2000-11-22 | Multi-atmosphere high-temp corrosion thermobalance measuring means |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2445321Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2012079314A1 (en) * | 2010-12-16 | 2012-06-21 | 大连理工大学 | Thermobalance with controllable high heating rate |
| CN102998245A (en) * | 2011-09-19 | 2013-03-27 | 中国科学院金属研究所 | Atmosphere compatibility experimental equipment of meshed porous electrothermal material and method thereof |
| CN106769621A (en) * | 2016-11-21 | 2017-05-31 | 中国科学院上海高等研究院 | A kind of microwave Thermgravimetric Analysis Apparatus and combined system |
| CN110865000A (en) * | 2019-12-02 | 2020-03-06 | 西安特种设备检验检测院 | System and method for continuously measuring high-temperature corrosion rate of heat-resistant steel |
-
2000
- 2000-11-22 CN CN 00253165 patent/CN2445321Y/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2012079314A1 (en) * | 2010-12-16 | 2012-06-21 | 大连理工大学 | Thermobalance with controllable high heating rate |
| CN102998245A (en) * | 2011-09-19 | 2013-03-27 | 中国科学院金属研究所 | Atmosphere compatibility experimental equipment of meshed porous electrothermal material and method thereof |
| CN102998245B (en) * | 2011-09-19 | 2015-02-04 | 中国科学院金属研究所 | Atmosphere compatibility experimental equipment of meshed porous electrothermal material and method thereof |
| CN106769621A (en) * | 2016-11-21 | 2017-05-31 | 中国科学院上海高等研究院 | A kind of microwave Thermgravimetric Analysis Apparatus and combined system |
| CN110865000A (en) * | 2019-12-02 | 2020-03-06 | 西安特种设备检验检测院 | System and method for continuously measuring high-temperature corrosion rate of heat-resistant steel |
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|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |