CN203643290U - Experimental apparatus for researching thermogravimetry and gas production characteristic of gram-level material - Google Patents
Experimental apparatus for researching thermogravimetry and gas production characteristic of gram-level material Download PDFInfo
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- CN203643290U CN203643290U CN201320881500.1U CN201320881500U CN203643290U CN 203643290 U CN203643290 U CN 203643290U CN 201320881500 U CN201320881500 U CN 201320881500U CN 203643290 U CN203643290 U CN 203643290U
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Abstract
The utility model discloses an experimental apparatus for researching the thermogravimetry and gas production characteristic of a gram-level material. The experimental apparatus comprises a console, an electronic balance, a heating furnace for heating a tested sample, a crucible for placing the tested sample and a lifting supporting frame for supporting the electronic balance, wherein the heating furnace is fixed at the side of the console; the lifting supporting frame is of an inverted L-shaped structure composed of a vertical supporting frame and a horizontal supporting plate; the bottom end of the vertical supporting frame of the lifting supporting frame is connected to a driving motor arranged in the console; the electronic balance is located above the heating furnace and is arranged on the horizontal supporting plate of the lifting supporting frame; a reaction tube is connected to the downside of the horizontal supporting plate of the lifting supporting frame through a fixed frame; the crucible is arranged in the reaction tube and is connected to a spring plate of the electronic balance through a metal wire pothook passing through the horizontal supporting plate of the lifting supporting frame. By using the experimental apparatus, the test at a large sample amount (the balance has the measuring range of 0-110g and the precision of 0.1mg) is realized, and the research on the thermogravimetry and gas production characteristic in an instant temperature rise state of the tested sample can also be realized.
Description
Technical field
The utility model relates to a kind of experimental provision.Particularly relate to a kind of gram stage material thermogravimetric and biogas production characteristics research experiment device.
Background technology
Gravitational thermal analysis method is the quality of measurement of species under programed temperature and a kind of technology of temperature relation, is the common method of research fuel combustion and pyrolysis kinetics characteristic.The instrument that is generally used for thermogravimetry (TG) is thermobalance, and general thermobalance can only be studied the material of 10mg left and right, and maximum also only has about 20mg.This example weight scope has stronger advantage for one-component Materials Measurement and analysis.But milligram level measurement range is difficult to meet the weight requirement of multi-component material thermogravimetric analysis, thus the reciprocal effect between component while being difficult to fully disclose multi-component material pyrolysis and burning.
The thermobalance now having occurred mainly contains two classes to the analytical model of sample, dynamically heating mode and isothermal mode.These two kinds of those one of pattern all require sample to put in advance reacting furnace, then reacting furnace and sample temperature programme simultaneously or be rapidly heated to design temperature.These thermogravimetric analyzers can not be realized pyrogenation and combustion state analysis and the biogas production characteristics research under the instantaneous soaking condition of sample.
Summary of the invention
Technical problem to be solved in the utility model is, provides a kind of and can realize the thermogravimetric analysis of large sample amount and realize thermogravimetric under the instantaneous soaking condition of sample and gram stage material thermogravimetric and the biogas production characteristics research experiment device of biogas production characteristics research.
The technical scheme that the utility model adopts is: a kind of gram stage material thermogravimetric and biogas production characteristics research experiment device, comprise control desk and electronic balance, the heating furnace that sample is heated, for placing the crucible of sample, and for supporting the lifting support frame of electronic balance, wherein, described heating furnace is fixed on the side of described control desk, the Γ type structure that described lifting support frame is made up of vertical support frame and horizontal supporting plate, the vertical support frame bottom of described lifting support frame connects on the drive motor being arranged in described control desk, described electronic balance be positioned at the top of described heating furnace and be arranged on described lifting support frame horizontal supporting plate above, the horizontal supporting plate of described lifting support frame below by a fixed mount coupled reaction pipe, described crucible is arranged in described reaction tube, and the tinsel hook of horizontal supporting plate by running through lifting support frame connects on the spring leaf of described electronic balance.
Described heating furnace includes furnace shell and is arranged on the heating inner liner in furnace shell, in described heating inner liner, be axially formed with the through channel of the upper and lower perforation for described reaction tube is set, the bottom of described through channel is provided with the bottom for prepurging, establishes respectively and imbed the furnace temperature collection thermopair and the Control for Kiln Temperature thermopair that are electrically connected with the temperature control unit being arranged in control desk on the courage wall of described heating inner liner.
Described reaction tube includes body, one end is inserted into the bottom of body inner side from body outside, the other end is positioned at the draft tube in body outside, be formed on the gas outlet on body, be formed on that body upper port protrudes to periphery for being stuck in the chimb on described fixed mount, cover the gland bonnet in body upper port, and one end is run through the sample temperature that described gland bonnet is inserted into the described crucible that is positioned at body inner side and is gathered thermopair, the other end of described sample temperature collection thermopair is positioned at the top of gland bonnet and is electrically connected and is arranged on the temperature control unit of control desk, the tinsel hook of described connection crucible runs through described gland bonnet and connects described electronic balance.
One end that described draft tube is positioned at reaction tube outside is connected gas cylinder by flowmeter with reduction valve successively, and described gas outlet connects gas collection bag.
Described fixed mount includes vertical and symmetrically arranged two corrosion resistant plates, the upper end of two described corrosion resistant plates is fixedly connected on the bottom of the horizontal supporting plate of described lifting support frame, and the dismountable connection one in bottom of each corrosion resistant plate is horizontally disposed for supporting the baffle plate of chimb at reaction tube upper port place.
One of the present utility model gram stage material thermogravimetric and biogas production characteristics research experiment device, realized the test of large sample amount (balance range is 0-110g, and precision is 0.1mg).It can make measured sample extend to polycomponent biased sample from one-component sample, is conducive to like this investigate the reciprocal effect between thermal weight loss phenomenon and the blending ingredients of polycomponent biased sample.Need more sample size for heterogeneous sample, correspondingly sample volume is larger, and the large body of heater in the utility model device can use volume to reach the crucible of 40ml.The utility model can also be realized thermogravimetric and the biogas production characteristics research under the instantaneous soaking condition of sample.
Accompanying drawing explanation
Fig. 1 is one-piece construction schematic diagram of the present utility model;
Fig. 2 is the utility model working state schematic representation;
Fig. 3 is the structural representation of heating furnace in the utility model;
Fig. 4 is the structural representation of the utility model reaction tube;
Fig. 5 is the structural representation of the utility model fixed mount;
Fig. 6 is the utility model Atmosphere Control and gas production system schematic.
In figure
1: tinsel hook 2: fixed mount
3: gas collection bag 4: heating furnace
5: control desk 6: electronic balance
7: lifting support frame 8: reaction tube
9: crucible 10: flowmeter
11: reduction valve 12: gas cylinder
Embodiment
Below in conjunction with embodiment and accompanying drawing, one of the present utility model gram stage material thermogravimetric and biogas production characteristics research experiment device are described in detail.
As Fig. 1, shown in Fig. 2, one of the present utility model gram stage material thermogravimetric and biogas production characteristics research experiment device, comprise control desk 5, electronic balance 6, the heating furnace 4 that sample is heated, for placing the crucible 9 of sample, and for supporting the lifting support frame 7 of electronic balance 6, wherein, described heating furnace 4 is fixed on the side of described control desk 5, the Γ type structure that described lifting support frame 7 is made up of vertical support frame and horizontal supporting plate, the vertical support frame bottom of described lifting support frame 7 connects the drive motor being arranged in described control desk 5, described electronic balance 6 be positioned at the top of described heating furnace 4 and be arranged on described lifting support frame 7 horizontal supporting plate above, the horizontal supporting plate of described lifting support frame 7 below by fixed mount 2 coupled reaction pipes 8, described crucible 9 is arranged in described reaction tube 8, and the tinsel hook 1 of horizontal supporting plate by running through lifting support frame 7 connects on the spring leaf of described electronic balance 6.Elevating lever adopts stainless steel to make, and controls the integral elevating of electronic balance 6 and reaction tube by the switch of manual control motor, can rise as required or decline certain distance.By fixed mount 2, reaction tube and lifting support frame 7 are linked together, the integrated moving of realization response pipe and lifting support frame 7.
Electronic balance adopts Chinese guidance panel, forward type Level tune bubble, and handled easily person carries out Level tune to electronic balance.In employing, deposit hanging steelyard hook, the weighing value on can simultaneous display balance, facilitates reading of data.Standard configuration RS232 communication interface, Portable computer data acquisition.Electronic balance range is 0-110g, and precision is 0.1mg, automated external calibration, standard configuration counterweight.Crucible capacity is 40ml.
As shown in Figure 3, described heating furnace 4 includes furnace shell 41 and is arranged on the heating inner liner 42 in furnace shell 41, described heating inner liner 42 adopts two semicircles of the low accumulation of heat Ultralight of high radiation fiber (a kind of fibrous material of special processing) pressing mold to be composited, heating inner liner 42 is interior to be axially formed with for described reaction tube 8 is set, the through channel 43 of lower perforation, the bottom of described through channel 43 is provided with the bottom 44 for prepurging, high temperature furnace silk and the furnace temperature of on the courage wall of described heating inner liner 42, imbedding respectively the resistance to rapid heat cycle formula being electrically connected with the temperature control unit being arranged in control desk 5 gather thermopair 45 and Control for Kiln Temperature thermopair 46.Temperature range is room temperature～1200 ℃; Fluctuate ± 1 ℃; Temperature display precision is 1 ℃.
As shown in Figure 4, described reaction tube 8 is made up of high temperature resistant, resistant material, can at 1100 ℃, use for a long time, and short time maximum operation (service) temperature can reach 1450 ℃.Described reaction tube 8 includes body 81, one end is inserted into the bottom of body 81 inner sides from body 81 outsides, the other end is positioned at the draft tube 82 in body 81 outsides, be formed on the gas outlet 83 on body 81, be formed on that body 81 upper port protrude to periphery for being stuck in the chimb 84 on described fixed mount 2, cover the gland bonnet (not shown) in body 81 upper port, and one end is run through the sample temperature that described gland bonnet is inserted into the described crucible 9 that is positioned at body 81 inner sides and is gathered thermopair 85, the other end of described sample temperature collection thermopair 85 is positioned at the top of gland bonnet and is electrically connected and is arranged on the temperature control unit of control desk 5, the tinsel hook 1 of described connection crucible 9 runs through described gland bonnet and connects described electronic balance 6.
As shown in Figure 6, one end that described draft tube 82 is positioned at reaction tube 8 outsides is connected gas cylinder 12 by flowmeter 10 with reduction valve 11 successively, and described gas outlet 83 connects gas collection bag 3.
As shown in Figure 5, described fixed mount 2 includes vertical and symmetrically arranged two corrosion resistant plates 21, the upper end of two described corrosion resistant plates 21 is fixedly connected on the bottom of the horizontal supporting plate of described lifting support frame 7, and the dismountable connection one in bottom of each corrosion resistant plate 21 is horizontally disposed for supporting the baffle plate 22 of chimb 84 at reaction tube 8 upper port places.Each described corrosion resistant plate 21 and a baffle plate 22 form a L-type structure, and two L-type structures are oppositely arranged and between two baffle plates 22, are formed with the interval identical with described reaction tube 8 diameters, thereby have formed fixed mount 2.
The temperature control unit being arranged in the utility model in control desk 5 can adopt computing machine or single-chip microcomputer or industrial computer, the input end of temperature control unit signal connects the signal output part of furnace temperature collection thermopair 45 and sample temperature collection thermopair 85, gather thermopair 45 and sample temperature by furnace temperature and gather the temperature signal that thermopair 85 collects and determine whether heating furnace needs heating, thereby heat to heating furnace by Control for Kiln Temperature thermopair 46.
The course of work of the present utility model:
1. pair sample carries out temperature programme thermogravimetric analysis: 1. lifting support frame is in rise state, test sample is put into crucible, crucible is as on tinsel hook, start the lifting support frame on control desk, crucible is declined and put into reaction tube (reaction tube is positioned at heating furnace in advance) by lifting support frame.Gland bonnet is built reaction tube.2. open the reduction valve on gas cylinder, adjust flux meter flow (as 1000ml/min) as required, to drive reaction inner air tube, after experiment starts, flowmeter flow is turned down to (as 400ml/min), in reaction tube, pass into the pyrolytic reaction environmental gas needing continuously, can guarantee like this pyrolysis atmosphere in reaction tube, and take away the gas componant producing in pyrolytic reaction process.3. on control desk, input requirement of experiment maximum temperature (as 900 ℃ or 1000 ℃) and requirement of experiment programming rate (as 50 ℃/min).Start the heating schedule of heating furnace, heating furnace starts to reaction tube heating, and control desk starts to detect and notes down the interior temperature of stove, sample temperature and example weight in whole temperature-rise period simultaneously.4. when furnace temperature reaches after preset temperature, control desk stops heating automatically, and sample experiment detects and finishes.In stove, temperature, sample temperature and example weight stop data acquisition, and control desk is preserved image data automatically.5. loosening reaction tube upper end gland bonnet, manually opened lifting support frame, links up with crucible to be lifted out heating furnace by tinsel, and heating furnace cools by air.6. close the reduction valve on gas cylinder, close flowmeter.
2. pair sample carries out instantaneous intensification thermogravimetric analysis: 1. lifting support frame, in rise state, is put into crucible by test sample, and it is upper that crucible is placed in tinsel hook, is fixed on fixed mount after reaction tube is covered to gland bonnet.2. on control desk, input requirement of experiment temperature (as 900 ℃ or 1000 ℃) and requirement of experiment programming rate (as 50 ℃/min).Start the heating schedule of stove, stove starts heating, and when furnace temperature reaches after preset temperature, stove is in keeping warm mode.3. open the reduction valve on gas cylinder, adjust flux meter flow (as 1000ml/min) as required, to drive reaction inner air tube.4. flowmeter flow is turned down to (as 400ml/min), in reaction tube, pass into the pyrolytic reaction environmental gas needing continuously, can guarantee like this pyrolysis atmosphere in reaction tube, and take away the gas componant producing in pyrolytic reaction process.Start the lifting support frame on control desk, decline together and put into heating furnace hanging on crucible on tinsel hook in reaction tube and pipe.Simultaneously control desk starts to detect and notes down sample temperature and example weight situation of change.5. in the time that test example weight no longer changes, close the heat insulation function of heating furnace, stop the heating of stove, sample experiment detects and finishes.In stove, temperature, sample temperature and example weight data stop gathering, and control desk is preserved image data automatically.6. loosening reaction tube upper end gland bonnet, manually opened lifting support frame, is lifted out heating furnace by crucible by tinsel, and heating furnace cools by air.7. close the reduction valve on gas cylinder, close flowmeter.
3. pair sample carries out biogas production characteristics research: the research of sample pyrolysis biogas production characteristics is the research contents based on sample thermogravimetric analysis basis.In laboratory sample being carried out to temperature programme thermogravimetric analysis or instantaneous intensification thermogravimetric analysis, study the gaseous product producing in this pyrolytic reaction process and become to be grouped into.Specific works process is after thermogravimetric analysis experiment starts, when control desk starts to record temperature in stove, sample temperature and example weight, be connected with the gas outlet in experimental provision with gas collection bag, according to specific experiment needs, collect at times the gaseous product that pyrolytic reaction produces.The gaseous product that collection obtains can need to carry out the detections such as follow-up gas chromatography, infrared spectrum, mass spectrum according to concrete experimental study.
Claims (5)
1. one kind of gram of stage material thermogravimetric and biogas production characteristics research experiment device, comprise control desk (5) and electronic balance (6), it is characterized in that, also be provided with the heating furnace (4) that sample is heated, for placing the crucible (9) of sample, and for supporting the lifting support frame (7) of electronic balance (6), wherein, described heating furnace (4) is fixed on the side of described control desk (5), the Γ type structure that described lifting support frame (7) is made up of vertical support frame and horizontal supporting plate, the vertical support frame bottom of described lifting support frame (7) connects on the drive motor being arranged in described control desk (5), described electronic balance (6) be positioned at the top of described heating furnace (4) and be arranged on described lifting support frame (7) horizontal supporting plate above, the horizontal supporting plate of described lifting support frame (7) below by a fixed mount (2) coupled reaction pipe (8), described crucible (9) is arranged in described reaction tube (8), and the tinsel hook (1) of horizontal supporting plate by running through lifting support frame (7) connects on the spring leaf of described electronic balance (6).
2. one according to claim 1 gram stage material thermogravimetric and biogas production characteristics research experiment device, it is characterized in that, described heating furnace (4) includes furnace shell (41) and is arranged on the heating inner liner (42) in furnace shell (41), in described heating inner liner (42), be axially formed with for described reaction tube (8) is set, the through channel (43) of lower perforation, the bottom of described through channel (43) is provided with the bottom (44) for prepurging, on the courage wall of described heating inner liner (42), establish respectively and imbed the furnace temperature collection thermopair (45) and the Control for Kiln Temperature thermopair (46) that are electrically connected with the temperature control unit being arranged in control desk (5).
3. one according to claim 1 gram stage material thermogravimetric and biogas production characteristics research experiment device, it is characterized in that, described reaction tube (8) includes body (81), one end is inserted into the bottom of body (81) inner side from body (81) outside, the other end is positioned at the draft tube (82) in body (81) outside, be formed on the gas outlet (83) on body (81), be formed on that body (81) upper port protrudes to periphery for being stuck in the chimb (84) on described fixed mount (2), cover the gland bonnet in body (81) upper port, and described gland bonnet is run through and is inserted into the sample temperature collection thermopair (85) of the described crucible (9) that is positioned at body (81) inner side in one end, the other end of described sample temperature collection thermopair (85) is positioned at the top of gland bonnet and is electrically connected and is arranged on the temperature control unit of control desk (5), the tinsel hook (1) of described connection crucible (9) runs through described gland bonnet and connects described electronic balance (6).
4. one according to claim 3 gram stage material thermogravimetric and biogas production characteristics research experiment device, it is characterized in that, one end that described draft tube (82) is positioned at reaction tube (8) outside is connected gas cylinder (12) by flowmeter (10) with reduction valve (11) successively, and described gas outlet (83) connects gas collection bag (3).
5. one according to claim 1 gram stage material thermogravimetric and biogas production characteristics research experiment device, it is characterized in that, described fixed mount (2) includes vertical and symmetrically arranged two corrosion resistant plates (21), the upper end of described two corrosion resistant plates (21) is fixedly connected on the bottom of the horizontal supporting plate of described lifting support frame (7), and the dismountable connection one in bottom of each corrosion resistant plate (21) is horizontally disposed for supporting the baffle plate (22) of chimb (84) at reaction tube (8) upper port place.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201320881500.1U CN203643290U (en) | 2013-12-26 | 2013-12-26 | Experimental apparatus for researching thermogravimetry and gas production characteristic of gram-level material |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103712881A (en) * | 2013-12-26 | 2014-04-09 | 中国人民解放军军事医学科学院卫生装备研究所 | Gram-grade material thermo-gravimetry and gas production property research experimental apparatus |
| CN104502535A (en) * | 2014-12-18 | 2015-04-08 | 东南大学 | Micro device and modeling method for studying gas-solid intrinsic chemical reaction kinetics |
| CN111205892A (en) * | 2020-01-08 | 2020-05-29 | 中广核工程有限公司 | Gasification experiment system and method suitable for solid waste |
| CN112858082A (en) * | 2021-01-05 | 2021-05-28 | 神华神东煤炭集团有限责任公司 | Weighing device and weighing method for evaluating thermal conversion of solid containing organic matters |
-
2013
- 2013-12-26 CN CN201320881500.1U patent/CN203643290U/en not_active Withdrawn - After Issue
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103712881A (en) * | 2013-12-26 | 2014-04-09 | 中国人民解放军军事医学科学院卫生装备研究所 | Gram-grade material thermo-gravimetry and gas production property research experimental apparatus |
| CN103712881B (en) * | 2013-12-26 | 2016-07-06 | 中国人民解放军军事医学科学院卫生装备研究所 | A kind of gram level material thermogravimetric and biogas production characteristics research experiment device |
| CN104502535A (en) * | 2014-12-18 | 2015-04-08 | 东南大学 | Micro device and modeling method for studying gas-solid intrinsic chemical reaction kinetics |
| CN104502535B (en) * | 2014-12-18 | 2016-03-02 | 东南大学 | For studying micro device and the modeling method of gas-solid intrinsic Chemical Kinetics |
| CN111205892A (en) * | 2020-01-08 | 2020-05-29 | 中广核工程有限公司 | Gasification experiment system and method suitable for solid waste |
| WO2021115355A1 (en) * | 2020-01-08 | 2021-06-17 | 中广核工程有限公司 | Gasification experiment system and method suitable for solid waste |
| EP4098998A4 (en) * | 2020-01-08 | 2024-04-10 | China Nuclear Power Engineering Co., Ltd. | Gasification experiment system and method suitable for solid waste |
| CN112858082A (en) * | 2021-01-05 | 2021-05-28 | 神华神东煤炭集团有限责任公司 | Weighing device and weighing method for evaluating thermal conversion of solid containing organic matters |
| CN112858082B (en) * | 2021-01-05 | 2023-03-24 | 神华神东煤炭集团有限责任公司 | Weighing device and weighing method for evaluating thermal conversion of solid containing organic matters |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20140611 Effective date of abandoning: 20160706 |
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| AV01 | Patent right actively abandoned |
Granted publication date: 20140611 Effective date of abandoning: 20160706 |
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| C25 | Abandonment of patent right or utility model to avoid double patenting |