CN206258335U - Fuel conflagration specificity analysis device - Google Patents
Fuel conflagration specificity analysis device Download PDFInfo
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- CN206258335U CN206258335U CN201621331750.8U CN201621331750U CN206258335U CN 206258335 U CN206258335 U CN 206258335U CN 201621331750 U CN201621331750 U CN 201621331750U CN 206258335 U CN206258335 U CN 206258335U
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Abstract
The utility model provides a kind of fuel conflagration specificity analysis device, and it includes:Gas supply mechanism, it includes combustion-supporting gas cylinder and cooling gas cylinder;Combustion reaction mechanism, it is provided with trestle table, trestle table is provided with the gentle temperature controller of arm hanging type day, arm hanging type balance underhung has the crucible that can contain fuel sample to be detected, mobile heating furnace is provided with below trestle table, heating furnace has the combustion chamber that can accommodate the crucible, and combustion chamber can be connected with combustion-supporting gas cylinder and cooling gas cylinder respectively, thermocouple is respectively equipped with crucible and in the furnace wall of heating furnace, thermocouple is electrically connected with temperature controller;Tail gas measuring mechanism, it includes flue gas analyzer, and combustion chamber is connected by discharge pipe with flue gas analyzer.The utility model can carry out conflagration to fuel sample, and the tail gas that it burns is tested and analyzed, easy to operate more accurately to study its combustion dynamics, and experiment is accurately and reliably.
Description
Technical field
The utility model is related to a kind of analytical equipment, specifically a kind of fuel conflagration specificity analysis device, more specifically
Be that a kind of wide range suitable for solid fuels such as coal, semi-coke or oil shales can realize the fast of exhaust emissions on-line checking
Fast combustion characteristic analysis device.
Background technology
The solid fuels such as coal are the important basic energy resources of China, by coal resources in China and oil, natural gas, water energy and
The primary energy resource such as nuclear energy is compared, and the resource reserve conversion verified is standard coal, and coal accounts for more than 85%.China " is with coal
The energy consumption structure of master " is poor with the situation of American-European countries " based on oil, supplemented by coal, natural gas, water power, nuclear energy are supplement "
Not significantly, coal in China consumption figure is accounted for cannot in 70% or so of total energy consumption figure, and such energy resource structure short-term
Change.Relevant research shows that the flue gas of coal burning discharge has become one of main source of China's atmosphere pollution, how high
The utilization coal resources of effect, cleaning, are the key points for being effectively improved State of Air pollution.
Power plant mainly carries out energy supply in the way of coal burning, in order to be able to the combustibility of more Accurate Prediction coal, people
Do not turn off send novelty measuring technology, in recent years, thermal analysis system has been widely used in terms of the combustibility of Study on Coal,
Thermogravimetry can continuously be measured during coal combustion and obtain the much informations such as temperature, weight, with measurement it is accurate, can
It is reproducible and can eliminate external diffusion under the influence of operate the advantages of, and turned into study Dynamic Characteristics of Coal Combustion strong work
Tool, the utilization coal resources for instructing how more efficient cleaning.
At present, domestic some scholars use thermogravimetric analysis (Thermogravimetric Analysis, TG or TGA) to me
The combustion characteristics of the fuel such as state's coal carries out system research and analysis, has obtained the one of the combustion characteristics that can reflect the fuel such as coal
Serial index, these indexs are to the design of power plant boiler and how the resource such as more efficient utilization coal has important guidance
Effect.But, traditional thermogravimetric analysis there are problems that following:(1) in the prior art by thermogravimetric analyzer to coal etc.
Fuel carries out thermogravimetric analysis, to reflect the combustion dynamics of the fuel such as coal, but the program of traditional thermogravimetric analyzer
Heat up more slow, fuel is also that burning is completed in continuous temperature-rise period, and in actual condition, fuel is added and has been fired
Expect in the stove of burning, fuel can be brought rapidly up and burn, and be a kind of quick oxygen diffusion combustion, and the liter of fuel gently burns
It is to be completed in very of short duration time, therefore, traditional thermogravimetric analysis can not meet fuel combustion characteristics research under actual conditions
Need;(2) traditional thermobalance range is smaller, and its crucible can only add more than ten milligrams every time as a microreactor
Powdered sample, and actual production process is burnt during patch fuel is put into boiler, therefore by traditional heat
The combustion characteristics that balance research obtains powdered samples is quite different with the combustion characteristics of the bulk sample being actually needed;(3) pass
The thermogravimetric analyzer of system only produces very small amount tail gas, it is difficult to carry out the collection of tail gas because adding the amount of sample seldom after burning
And further detect tail gas, even if having collected a small amount of tail gas being detected, also with Actual combustion discharge flue gas composition difference compared with
Greatly, thus traditional thermogravimetric analyzer be difficult to discharge flue gas composition and its pollution condition accurately tested and analyzed.
In view of the problem that above-mentioned prior art is present, the present inventor combines the design for many years of related manufacture field and uses
Experience, there is provided a kind of fuel conflagration specificity analysis device overcomes drawbacks described above.
Utility model content
The purpose of this utility model is to provide a kind of fuel conflagration specificity analysis device, and it can be carried out to fuel sample
Conflagration, and the tail gas that it burns is tested and analyzed, more accurately to study its combustion dynamics, operation side
Just, test accurately and reliably.
Above-mentioned purpose of the present utility model can be realized using following technical proposal:
The utility model provides a kind of fuel conflagration specificity analysis device, and it includes:Gas supply mechanism, it includes
Combustion-supporting gas cylinder and cooling gas cylinder;Combustion reaction mechanism, it is provided with trestle table, and the trestle table is provided with the gentle temperature of arm hanging type day
Controller, the arm hanging type balance underhung has the crucible that can contain fuel sample to be detected, is set below the trestle table
Have a mobile heating furnace, the heating furnace has a combustion chamber that can accommodate the crucible, the combustion chamber can respectively with it is described
Combustion-supporting gas cylinder is connected with the cooling gas cylinder, and thermocouple is respectively equipped with the crucible and in the furnace wall of the heating furnace, described
Thermocouple is electrically connected with the temperature controller;Tail gas measuring mechanism, it includes flue gas analyzer, and the combustion chamber is by discharge
Pipe is connected with the flue gas analyzer.
In a preferred embodiment, the heating furnace is connected with a lifting motor, and setting is not up in the heating furnace
In the state of temperature, the heating furnace is separated with the trestle table, and the crucible is located at outside the combustion chamber of the heating furnace, institute
State and insulation division board is provided between heating furnace and the crucible;In the state of the heating furnace reaches the design temperature, institute
State heating furnace to be connected with trestle table sealing, the crucible for containing the fuel sample to be detected is located at the heating furnace
In combustion chamber.
In a preferred embodiment, the lower surface of the trestle table is provided with sealing flange, the upper table of the heating furnace
Face is provided with lower sealing flange, and the upper sealing flange can be connected with the lower sealing flange sealing.
In a preferred embodiment, the heating furnace has upper end open and lower ending opening, the upper end of the heating furnace
The combustion chamber, the cross section of the upper end open size more than the crucible of the heating furnace are formed between opening and lower ending opening
Size, the lower ending opening of the heating furnace is connected with the discharge pipe.
In a preferred embodiment, the gas supply mechanism also includes gas-flow rate controller, the gas flow
The arrival end of controller is connected with the combustion-supporting gas cylinder and the cooling gas cylinder respectively, the port of export of the gas-flow rate controller
Can be connected with the combustion chamber by supply pipe.
In a preferred embodiment, the spout of the supply pipe is located at the top of the crucible, is located in the crucible
In the state of in the combustion chamber, the spout of the supply pipe is located at the upper end open of the heating furnace.
In a preferred embodiment, the Tail gas measuring mechanism also includes wide-mouth bottle, and cooling is arranged outside the wide-mouth bottle
Water jacket, the discharge pipe is connected by the wide-mouth bottle with the flue gas analyzer.
In a preferred embodiment, the bottleneck of the wide-mouth bottle is provided with the seal rubber plug of interspersed connecting tube, the discharge
Pipe can be connected away from one end of the combustion chamber through the seal rubber plug and with the wide-mouth bottle, and the wide-mouth bottle is by described
Connecting tube is connected with the flue gas analyzer.
In a preferred embodiment, the fuel conflagration specificity analysis device also includes computer controls mechanism,
The computer controls mechanism electrically connects with the arm hanging type balance, the temperature controller and the flue gas analyzer respectively.
In a preferred embodiment, the range of the arm hanging type balance is 500 grams.
The characteristics of the utility model fuel conflagration specificity analysis device and advantage are:
1st, combustion reaction mechanism of the present utility model sets moveable heating furnace, and design temperature is reached with heating furnace
Before, crucible is located at outside the combustion chamber of heating furnace, and insulation division board is set between heating furnace and crucible, make treating in crucible
Detection fuel sample is influenceed in room temperature state without the temperature by heating furnace, and after heating furnace reaches design temperature, quickly
Mobile heating furnace, makes crucible be located in the combustion chamber of heating furnace, realizes the fuel sample conflagration to be detected in crucible, more very
The combustion position of fuel in real simulating reality, more accurately studies the combustion dynamics of fuel, how higher to instructing
The fuel sources such as effect, the utilization coal for more cleaning are significant, and easy to operate, cost performance is high, and certainty of measurement is high;
2nd, the utility model is by setting the arm hanging type balance of wide range, compared to only can be suitably used for more than ten in the prior art
For the small-range balance of the powdered sample of milligram, can realize to a large amount of samples (particularly solid block sample) in fast quick burning
The real-time weighing of mass change during burning, charge is big, and passes through discharge pipe at the lower ending opening of the combustion chamber of heating furnace
Connection Tail gas measuring mechanism, substantial amounts of tail gas (such as SO for producing burning2、NOxDeng) flue gas point is collected into by discharge pipe
Detected in analyzer, while by the wide-mouth bottle for being arranged with cooling jacket being arranged in the middle of discharge pipe and flue gas analyzer,
Tail gas is lowered the temperature, beneficial to the analysis of exhaust gas composition content, certainty of measurement is high, applied widely;
3rd, the utility model is by setting computer controls mechanism, and the fuel sample that arm hanging type balance is weighed is burned
The temperature of heating furnace and the surface temperature of fuel sample and flue gas analyzer of real-time quality, the thermocouple measurement in real time in journey
The exhaust gas composition content of real-time detection feeds back to computer controls mechanism in real time, with intuitively by thermogravimetric curve (i.e. TG curves)
Showed with the change curve of time and/or temperature with exhaust gas composition content, realized to fuel conflagration and combustion tail gas
Synchronous on-line checking, beneficial to research fuel combustion dynamics.
Brief description of the drawings
In order to illustrate more clearly of the technical scheme in the utility model embodiment, below will be to needed for embodiment description
The accompanying drawing to be used is briefly described, it should be apparent that, drawings in the following description are only some realities of the present utility model
Example is applied, for those of ordinary skill in the art, on the premise of not paying creative work, can also be according to these accompanying drawings
Obtain other accompanying drawings.
Fig. 1 is a structural representation of the utility model fuel conflagration specificity analysis device;
Fig. 2 is another structural representation of the utility model fuel conflagration specificity analysis device.
Drawing reference numeral explanation:
1 combustion-supporting gas cylinder, 2 cooling gas cylinders, 3 gas-flow rate controllers, 4 arm hanging type balances, 5 temperature controllers, 6 trestle tables, 7
Thermocouple, 8 crucibles, 9 heating furnaces, 10 computer controls mechanisms, sealing flange on 11,12 times sealing flanges, 13 combustion chambers, 14 protect
Warm division board, 15 discharge pipes, 16 first wide-mouth bottles, 17 second wide-mouth bottles, 18 cooling jackets, 19 flue gas analyzers, 20 connecting tubes,
21 supply pipes.
Specific embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the utility model embodiment is carried out
Clearly and completely describe, it is clear that described embodiment is only a part of embodiment of the utility model, rather than whole
Embodiment.Based on the embodiment in the utility model, those of ordinary skill in the art are not under the premise of creative work is made
The every other embodiment for being obtained, belongs to the scope of the utility model protection.
As depicted in figs. 1 and 2, the utility model provides a kind of fuel conflagration specificity analysis device, and it includes:Gas
Feed mechanism, it includes combustion-supporting gas cylinder 1 and cooling gas cylinder 2;Combustion reaction mechanism, it is provided with trestle table 6, on the trestle table 6
Arm hanging type balance 4 and temperature controller 5 are provided with, the underhung of arm hanging type balance 4 has can contain fuel sample to be detected
Crucible 8, the lower section of the trestle table 6 is provided with mobile heating furnace 9, and the heating furnace 9 has the combustion that can accommodate the crucible 8
Chamber 13 is burnt, the combustion chamber 13 can be connected with the combustion-supporting gas cylinder 1 and the cooling gas cylinder 2 respectively, in the crucible 8 and described
Thermocouple 7 is respectively equipped with the furnace wall of heating furnace 9, the thermocouple 7 is electrically connected with the temperature controller 5;Tail gas measuring machine
Structure, it includes flue gas analyzer 19, and the combustion chamber 13 is connected by discharge pipe 15 with the flue gas analyzer 19.
Specifically, air or oxygen can be contained in combustion-supporting gas cylinder 1, for the combustion reaction in combustion chamber 13 or combustion-supporting,
Nitrogen or other inert gases can be contained in cooling gas cylinder 2, to realize combustion chamber 13 and earthenware after the completion of burning to heating furnace 9
The cooling of crucible 8;Crucible 8 is alumina crucible, for containing fuel sample, its high temperature for being resistant to 1600 DEG C;Temperature controller 5
In on trestle table 6 and being located at the side of arm hanging type balance 4, its with the crucible 8 and positioned at fuel sample surface to be detected
Thermocouple 7 is electrically connected, with the surface temperature of real-time monitoring fuel sample, and with the electricity of thermocouple 7 in the furnace wall of heating furnace 9
Connection, to monitor the real time temperature of heating furnace 9, meanwhile, heating furnace 9 can be electric furnace, and it can be straight by manipulating temperature detect switch (TDS)
Control heating-up temperature and the heat time is connect, or the temperature detect switch (TDS) of heating furnace 9 is electrically connected with temperature controller 5, by temperature
Controller 5 directly controls heating-up temperature and the heat time of heating furnace 9.
Further, the range of the arm hanging type balance 4 is 500 grams, crucible 8 is contained to be detected within 500 grams
Fuel sample, realizes high-acruracy survey of the fuel sample within 500 grams, and certainty of measurement is high, specifically, arm hanging type balance 4
In on trestle table 6, and crucible 8 is suspended in the lower section of trestle table 6 by its suspending rod, to measure the fuel in crucible 8 in real time
The quality of sample, wherein, the suspending rod of arm hanging type balance 4 can be hung down by the edge of trestle table 6, it is also possible in trestle table 6
Middle part open up perforate, the suspending rod of arm hanging type balance 4 is hung down from the tapping of trestle table 6, the size of the perforate is with lucky
Can be advisable by the suspending rod of arm hanging type balance 4, to avoid excessive combustion tail gas in fuel combustion process by the perforate
Cause leakage.
Further, the heating furnace 9 is connected with a lifting motor (not shown), is not up in the heating furnace 9
In the state of design temperature, the heating furnace 9 is separated (as shown in Figure 2) with the trestle table 6, and the crucible 8 is located at described
Outside the combustion chamber 13 of heating furnace 9, insulation division board 14 is provided between the heating furnace 9 and the crucible 8;In the heating furnace 9
Reach in the state of the design temperature, the heating furnace 9 is connected (as shown in Figure 1) with the sealing of the trestle table 6, contain described
The crucible 8 of fuel sample to be detected is located in the combustion chamber 13 of the heating furnace 9, the combustion-supporting gas cylinder 1 and the burning
Chamber 13 is connected, the combustion-supporting gas for making the fuel sample to be detected in crucible 8 be provided in the heating furnace 9 and combustion-supporting gas cylinder 1 of high temperature
In the presence of conflagration, the fuel sample described to be detected in the crucible 8 burn completely after in the state of, the cooling
Gas cylinder 2 is connected with the combustion chamber 13, and combustion chamber 13 and crucible 8 are cooled down with by cooling gas, wherein, thermal insulation separation
It is made of refractory brick outside one layer of aluminosilicate fiber cotton of parcel from plate 14, to play heat-insulated and sealing function, has both isolated and added
Hot stove 9 and crucible 8, it is to avoid the temperature of the fuel sample to be detected in crucible 8 before the temperature influence burning of heating furnace 9, but it is close
Heating furnace 9 is sealed, it is to avoid the temperature in heating furnace 9 is scattered away.
Further, as depicted in figs. 1 and 2, the lower surface of the trestle table 6 is provided with sealing flange 11, described to add
The upper surface of hot stove 9 is provided with lower sealing flange 12, and the upper sealing flange 11 can be connected with the lower sealing flange 12 sealing, with
Ensure the sealing of junction by sealing flange, it is to avoid combustion tail gas are largely leaked from junction, specifically, upper sealing flange 11
Can be sealed by screw with lower sealing flange 12 and be connected, other connected modes can be also used certainly, this is not restricted, upper sealing
High temperature resistant pad can be provided between flange 11 and lower sealing flange 12, to avoid the high temperature of heating furnace 9 to the He of upper sealing flange 11
Lower sealing flange 12 etc. causes fire damage, and the center of the central and lower sealing flange 12 of upper sealing flange 11 opens up one and opens respectively
Hole, and the perforate of the two is corresponding, two sizes of perforate can be advisable by the suspending rod of arm hanging type balance 4, without too
Greatly, revealed with reducing the upper end open of combustion tail gas self-heating stove 9 as far as possible, it is preferred that the size of the perforate of upper sealing flange 11 and
The size of the perforate of lower sealing flange 12 less than the size of the upper end open of heating furnace 9, separated with trestle table 6 in heating furnace 9 and
When heating furnace 9 is in temperature-rise period, insulation division board 14 can be located on the lower sealing flange 12 of heating furnace 9 and cover heating
The upper end open of stove 9, it is to avoid the temperature in heating furnace 9 is scattered away or produces influence to the crucible 8 of the top of heating furnace 9, meanwhile, support
The upper sealing flange 11 that the lower surface of platform 6 is provided with can also play a part of buffering to moving up for heating furnace 9.
Further, as depicted in figs. 1 and 2, the heating furnace 9 has upper end open and lower ending opening, the heating furnace 9
Upper end open and lower ending opening between form the combustion chamber 13, the upper end open size of the heating furnace 9 is more than the earthenware
The cross section size of crucible 8, is enable crucible 8 to be freed in and out by the upper end open of heating furnace 9 in the moving process of heating furnace 9 and added
The combustion chamber 13 of hot stove 9, the lower ending opening of the heating furnace 9 is connected with the discharge pipe 15, will be burnt with by discharge pipe 15
Combustion tail gas in chamber 13 are collected into tails assay mechanism and are analyzed detection, specifically, heating furnace 9 is tubular type may move resistance
Stove, the combustion chamber 13 of heating furnace 9 is in inverted necking doleiform (as shown in Figure 1), both beneficial to crucible 8 it is comprehensive receive heating furnace
9 high temperature, makes fuel sample conflagration to be detected, and it is laggard by the necking of combustion chamber 13 to obtain buffering beneficial to combustion tail gas
Enter discharge pipe 15, and then realize the collection of the combustion tail gas of Large Copacity.
Further, as depicted in figs. 1 and 2, the gas supply mechanism also includes gas-flow rate controller 3, the gas
The arrival end of body flow quantity control instrument 3 is connected with the combustion-supporting gas cylinder 1 and the cooling gas cylinder 2 respectively, the gas flow control
The port of export of instrument 3 can be connected by supply pipe 21 with the combustion chamber 13, with what is needed according to actual conditions or actual tests
Condition, the gas flow size that regulation passes through gas-flow rate controller 3, while can also be controlled by gas-flow rate controller 3 logical
The gas time, to be adapted to various operating condition of test;Further, the spout of the supply pipe 21 is located at the top of the crucible 8,
In the state of the crucible 8 is located in the combustion chamber 13, the spout of the supply pipe 21 is located at the upper end of the heating furnace 9
At opening, specifically, supply pipe 21 is ridden upon on trestle table 6 after being extended out from the port of export of gas-flow rate controller 3, and it is curved
Extended downwardly by the perforate at the middle part of trestle table 6 after folding and be located at the top of crucible 8, in making combustion process, the spray of supply pipe 21
Mouthful it is located at the upper end open of heating furnace 9, preferably, the horizontal direction center line of the spout of supply pipe 21 and upper sealing flange 11
Concordantly, as shown in figure 1, the horizontal direction center line for wherein going up sealing flange 11 is upper surface and the following table of sealing flange 11
Medium line between face, with the combustion-supporting gas sprayed by supply pipe 21, and hinders the upper end open of combustion tail gas self-heating stove 9
Excessive leakage, it is ensured that substantial amounts of combustion tail gas smoothly can enter flue gas analyzer 19 by discharge pipe 15, it is ensured that detection knot
Fruit it is accurate.
Further, as depicted in figs. 1 and 2, the Tail gas measuring mechanism also includes wide-mouth bottle, is arranged outside the wide-mouth bottle
Cooling jacket 18, the discharge pipe 15 is connected by the wide-mouth bottle with the flue gas analyzer 19, it is preferred that the wide-mouth bottle
Bottleneck be provided with the seal rubber plug of interspersed connecting tube 20, the discharge pipe 15 can be through described away from one end of the combustion chamber 13
Seal rubber plug is simultaneously connected with the wide-mouth bottle, and the wide-mouth bottle is connected by the connecting tube 20 with the flue gas analyzer 19,
The combustion tail gas in combustion chamber 13 is cooled down in wide-mouth bottle by entering after discharge pipe 15, make the combustion tail gas after cooling again
Into flue gas analyzer 19, it is to avoid flue gas analyzer 19 is damaged by high-temp combustion tail gas, wherein, cooling jacket 18 can be to include
The closing water jacket of cooling water, or be provided with circulation taps cooling jacket 18, i.e., by circulating taps can realization
To the cooling water that is passed through of the interior circulation of cooling jacket 18, the depth that discharge pipe 15 is located in wide-mouth bottle is located at wide-mouth bottle more than connecting tube
Interior depth, makes the combustion tail gas entered in wide-mouth bottle fully be cooled down in wide-mouth bottle, and wherein wide-mouth bottle can also be multiple,
In one embodiment, the wide-mouth bottle is two, and is respectively designated as the first wide-mouth bottle 16 and the second wide-mouth bottle 17, and discharge pipe 15 is worn
The seal rubber plug of the first wide-mouth bottle 16 is crossed, (such as Fig. 1 is connected by a connecting tube between the first wide-mouth bottle 16 and the second wide-mouth bottle 17
It is shown), the connecting tube 20 on the seal rubber plug of the second wide-mouth bottle 17 connects the inner chamber of the second wide-mouth bottle 17 and flue gas analyzer 19
Connect, make combustion tail gas by entering flue gas analyzer 19 after the buffering of two or more wide-mouth bottles and cooling, realize to combustion
Burn the thorough cooling of tail gas.
Further, as depicted in figs. 1 and 2, the fuel conflagration specificity analysis device also includes computer controls
Mechanism 10, the computer controls mechanism 10 divides with the arm hanging type balance 4, the temperature controller 5 and the flue gas respectively
Analyzer 19 is electrically connected, the combustion that the thermocouple 7 in the real-time quality of the fuel sample that arm hanging type balance 4 is measured, crucible 8 is measured
Expect real time temperature, the flue gas analysis of the heating furnace 9 that the real time temperature of sample surfaces, the thermocouple 7 in the furnace wall of heating furnace 9 are measured
The component of the combustion tail gas in combustion chamber 13 that instrument 19 is measured, feeds back to computer controls mechanism 10 in real time, and realization is adopted in real time
Collection, and so that intuitively thermogravimetric curve (i.e. TG curves) and exhaust gas composition content to be presented with the change curve of time and/or temperature
Out, wherein, between computer controls mechanism 10 and arm hanging type balance 4, temperature controller 5 and flue gas analyzer 19 can by number
The feedback transmission of data is realized according to transmission line.
The kinetics of combustion that the utility model fuel conflagration specificity analysis device is applied to various fuel samples is analyzed,
Be particularly well-suited to the bulky grains such as coal, semi-coke or oil shale solid fuel kinetics of combustion analysis, its can temperature be 0~
1500 DEG C, pressure be normal pressure under complete, specifically operationally, heating furnace 9 is minimized by position by lifting motor first, make
Heating furnace 9 is located at the lower section of the crucible 8 for holding fuel sample to be detected, and lid sets thermal insulation separation at the upper end open of heating furnace 9
From plate 14, crucible 8 is influenceed without the heating furnace 9 by lower section in room temperature state, then, set the intensification journey of heating furnace 9
Sequence and design temperature, open circulation taps, start the cycle over the cooling water in cooling jacket 18, and fuel sample to be detected is put
Enter in crucible 8, thermocouple 7 inserted in crucible 8 and fuel sample surface to be detected is contacted, start to heat heating furnace 9,
Heating furnace 9 is set to be heated up with certain heating rate, after heating furnace 9 is heated to design temperature and keeps stabilization, opening is helped
Fuel gas bottle 1, the ventilation flow rate of adjusting gas flow controller 3, the baseline in the display interface of computer controls mechanism 10 is steady
After fixed, insulation division board 14 is removed, by lifting motor by the quickly upper shifting of heating furnace 9, and make the lower sealing flange 12 of heating furnace 9
Upper sealing flange 11 with trestle table 6 is tightly connected, and crucible 8 is completely in the high-temperature region of heating furnace 9, in crucible 8
Fuel sample to be detected conflagration in the presence of the high temperature and combustion-supporting gas of heating furnace 9, in burning produce tail gas by
Central aperture size in upper sealing flange 11 and lower sealing flange 12 is smaller and in the case where the injection pressure of supply pipe 21 is acted on, and leads to
Cross discharge pipe 15 and enter cooling in the first wide-mouth bottle 16, enter back into cooling in the second wide-mouth bottle 17, the combustion tail gas after cooling lead to
Cross connecting tube 20 and enter analyzed detection in flue gas analyzer 19, after after fuel sample burning completely, close combustion-supporting gas cylinder 1, beat
Open cooling gas cylinder 2, adjusting gas flow controller 3, with by supply pipe 21 to being passed through cooling gas (such as nitrogen in combustion chamber 13
Gas) cooled down, treat that the temperature of the detection of the thermocouple 7 in crucible 8 is down to 100 DEG C or so, heating furnace 9 is dropped by lifting motor
To extreme lower position, natural cooling, and close the circulation taps of cooling jacket 18, cooling gas cylinder 2, the and of temperature controller 5
The equipment such as flue gas analyzer 19.In experiment, every test data feeds back to computer controls mechanism 10 after being collected, combustion
Expect that the weight of sample and the change curve of temperature, combustion tail gas composition and content can be with the change curve etc. of time or temperature
Directly read in computer controls mechanism 10, with direct, synchronous on-line checking burning sample quality, temperature and burning tail
Gas, realizes the TG curves and fume emission curve of fuel sample under more accurate measurement different temperatures, more accurately to study
Kinetics of combustion.
The characteristics of the utility model fuel conflagration specificity analysis device and advantage are:
1st, combustion reaction mechanism of the present utility model sets moveable heating furnace 9, and design temperature is reached with heating furnace 9
Before, crucible 8 is located at outside the combustion chamber 13 of heating furnace 9, and insulation division board 14 is set between heating furnace 9 and crucible 8, make earthenware
Fuel sample to be detected in crucible 8 is in room temperature state without being influenceed by the temperature of heating furnace 9, and reaches setting in heating furnace 9
After temperature, quick mobile heating furnace 9 makes crucible 8 be located in the combustion chamber 13 of heating furnace 9, realizes the fuel to be detected in crucible 8
Sample conflagration, the combustion position of fuel in more real simulating reality, the kinetics of combustion for more accurately studying fuel is special
Property, to instructing the fuel sources such as utilization coal that is how more efficient, more cleaning significant, easy to operate, cost performance is high,
Certainty of measurement is high;
2nd, the utility model is by setting the arm hanging type balance 4 of wide range, compared to only can be suitably used for ten in the prior art
For several milligrams of small-range balances of powdered sample, can realize to a large amount of samples (particularly solid block sample) quick
The real-time weighing of mass change in combustion process, charge is big, and by row at the lower ending opening of the combustion chamber 13 of heating furnace 9
The connection Tail gas measuring of outlet pipe 15 mechanism, substantial amounts of tail gas (such as SO for producing burning2、NOxDeng) be collected by discharge pipe 15
Detected in flue gas analyzer 19, while being arranged with cooling by being arranged in the middle of discharge pipe 15 and flue gas analyzer 19
The wide-mouth bottle of water jacket 18, lowers the temperature to tail gas, and beneficial to the analysis of exhaust gas composition content, certainty of measurement is high, applied widely;
3rd, the utility model by setting computer controls mechanism 10, fire by the fuel sample that arm hanging type balance 4 is weighed
The temperature of heating furnace 9 and the surface temperature of fuel sample and flue gas of real-time quality, thermocouple 7 measurement in real time during burning
The exhaust gas composition content of the real-time detection of analyzer 19 feeds back to computer controls mechanism 10 in real time, with intuitively by thermogravimetric curve
(i.e. TG curves) and exhaust gas composition content are showed with the change curve of time and/or temperature, are realized to fuel conflagration
With the synchronous on-line checking of combustion tail gas, beneficial to research fuel combustion dynamics.
The schematical specific embodiment of the utility model is the foregoing is only, and is not used to limit model of the present utility model
Enclose.Any those skilled in the art, the equivalent variations made on the premise of principle of the present utility model and design is not departed from
With modification, protection domain of the present utility model all should be belonged to.
Claims (10)
1. a kind of fuel conflagration specificity analysis device, it is characterised in that the fuel conflagration specificity analysis device bag
Include:
Gas supply mechanism, it includes combustion-supporting gas cylinder and cooling gas cylinder;
Combustion reaction mechanism, it is provided with trestle table, and the trestle table is provided with the gentle temperature controller of arm hanging type day, the arm
Formula balance underhung has the crucible that can contain fuel sample to be detected, and mobile heating is provided with below the trestle table
Stove, the heating furnace has can accommodate the combustion chamber of the crucible, the combustion chamber can respectively with the combustion-supporting gas cylinder and described
Cooling gas cylinder is connected, and thermocouple, the thermocouple and the temperature are respectively equipped with the crucible and in the furnace wall of the heating furnace
Degree controller electrical connection;
Tail gas measuring mechanism, it includes flue gas analyzer, and the combustion chamber is connected by discharge pipe with the flue gas analyzer.
2. fuel conflagration specificity analysis device according to claim 1, it is characterised in that the heating furnace and a liter
Drop motor is connected, and in the state of the heating furnace is not up to design temperature, the heating furnace is separated with the trestle table, institute
Crucible is stated outside the combustion chamber of the heating furnace, insulation division board is provided between the heating furnace and the crucible;Described
Heating furnace is reached in the state of the design temperature, and the heating furnace is connected with trestle table sealing, contains described to be detected
The crucible of fuel sample is located in the combustion chamber of the heating furnace.
3. fuel conflagration specificity analysis device according to claim 2, it is characterised in that the following table of the trestle table
Face is provided with sealing flange, and the upper surface of the heating furnace is provided with lower sealing flange, the upper sealing flange can with it is described under it is close
Envelope flange seal is connected.
4. fuel conflagration specificity analysis device according to claim 1, it is characterised in that the heating furnace has upper
End opening and lower ending opening, form the combustion chamber, the heating furnace between the upper end open and lower ending opening of the heating furnace
Cross section size of the upper end open size more than the crucible, the lower ending opening of the heating furnace is connected with the discharge pipe.
5. fuel conflagration specificity analysis device according to claim 1, it is characterised in that the gas supply mechanism
Also include gas-flow rate controller, the arrival end of the gas-flow rate controller respectively with the combustion-supporting gas cylinder and the cooling gas
Bottle is connected, and the port of export of the gas-flow rate controller can be connected by supply pipe with the combustion chamber.
6. fuel conflagration specificity analysis device according to claim 5, it is characterised in that the spout of the supply pipe
Positioned at the top of the crucible, in the state of the crucible is located in the combustion chamber, the spout of the supply pipe is located at institute
State at the upper end open of heating furnace.
7. fuel conflagration specificity analysis device according to claim 1, it is characterised in that the Tail gas measuring mechanism
Also include wide-mouth bottle, cooling jacket is arranged outside the wide-mouth bottle, the discharge pipe is by the wide-mouth bottle and the flue gas analysis
Instrument is connected.
8. fuel conflagration specificity analysis device according to claim 7, it is characterised in that the bottleneck of the wide-mouth bottle
Be provided with the seal rubber plug of interspersed connecting tube, the discharge pipe away from the combustion chamber one end can through the seal rubber plug and with
The wide-mouth bottle connection, the wide-mouth bottle is connected by the connecting tube with the flue gas analyzer.
9. fuel conflagration specificity analysis device according to claim 1, it is characterised in that the fuel conflagration
Specificity analysis device also includes computer controls mechanism, the computer controls mechanism respectively with the arm hanging type balance, described
Temperature controller and the flue gas analyzer are electrically connected.
10. fuel conflagration specificity analysis device according to claim 1, it is characterised in that the arm hanging type balance
Range be 500 grams.
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CN201621331750.8U CN206258335U (en) | 2016-12-07 | 2016-12-07 | Fuel conflagration specificity analysis device |
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CN201621331750.8U CN206258335U (en) | 2016-12-07 | 2016-12-07 | Fuel conflagration specificity analysis device |
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Granted publication date: 20170616 Termination date: 20191207 |