CN204694659U - Air heat diffusion test experimental provision in loose coal - Google Patents
Air heat diffusion test experimental provision in loose coal Download PDFInfo
- Publication number
- CN204694659U CN204694659U CN201520402412.8U CN201520402412U CN204694659U CN 204694659 U CN204694659 U CN 204694659U CN 201520402412 U CN201520402412 U CN 201520402412U CN 204694659 U CN204694659 U CN 204694659U
- Authority
- CN
- China
- Prior art keywords
- splendid attire
- attire pipe
- coal body
- gas
- pipe
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Landscapes
- Measuring Temperature Or Quantity Of Heat (AREA)
Abstract
To the utility model discloses in a kind of loose coal air heat diffusion test experimental provision, comprise coal body splendid attire pipe and gas splendid attire pipe and support, support is connected with coal body splendid attire pipe, coal body splendid attire pipe one end is connected by reducer union with gas splendid attire pipe one end, the coal body splendid attire pipe other end arranges the first valve, the gas splendid attire pipe other end arranges the second valve, 3rd valve is set in reducer union, in coal body splendid attire pipe, dividing plate is set, pore offered by dividing plate, the first baroceptor installed by coal body splendid attire pipe, gas splendid attire pipe installs the second baroceptor and temperature sensor, first baroceptor and the end face stretching into coal body splendid attire pipe offers static pressure perception hole, first baroceptor and the sidewall stretching into the position of coal body splendid attire pipe offers total head perception hole, the outer wall of gas splendid attire pipe is wound with electrical heating elements.The structure of this experimental provision is simple, experiment effect good, effectively can test air heat diffusional effect in loose coal.
Description
Technical field
The utility model belongs to air heat field of diffusion technologies in loose coal, specifically relates to air heat diffusion test experimental provision in a kind of loose coal.
Background technology
Loose crushing coal body can due to the acting in conjunction of various internal and external factor, be partially formed the relatively-high temperature region in a projecting region of temperature, high-temperature area can be produced high-temperature gas product and be heated by heat radiation, heat transfer, the gas of thermal convection effect to surrounding, produce buoyancy and pressure differential effect due to variable density after gas is heated, impel gas upwards to migrate, gas around can fill up the vacancy that gas entrainment produces.High temperature dot self-loopa will be formed like this and entrainment live gas around, promote finally to develop into the development that high-temperature area is outside uncontrollable coal spontaneous combustion fire, bring great harm to the safety and Health of the safety in production in colliery and operating personnel.
Now there are some researches show that oxygen supply has extreme influence to coal fire development, and at present external mechanical is biased toward to the research of oxygen supply power source aspect more and to leak out oxygen supply, to hot loose coal body because the research of the mechanism of action of certainly entrainmenting oxygen supply process caused by density difference and influence factor is little; And loose coal entrainments the important factor in order that oxygen supply is the process such as flame range development and gaseous product diffusion And Movement certainly in real process.And at present to the coverage of high-temperature area under different temperatures to ambient gas diffusion And Movement, and affect the factor role such as temperature T, voidage ε, high temperature dot orientation θ that air heat flowing migrates and therebetween mutual relationship understand not enough.By the experiment of high temperature dot ambient gas thermal diffusion test in loose coal, find out the mutual relationship between the significance level of Different factor and each factor, better can understand the temporal and spatial evolution of freely burning fire development, and provide favourable technical support for the prevention and control of coal spontaneous combustion fire, become the technical matters that various equivalent modifications is urgently to be resolved hurrily.
Utility model content
The purpose of this utility model is to overcome above-mentioned deficiency of the prior art, provides air heat diffusion test experimental provision in a kind of loose coal.The structure of this experimental provision is simple, experiment effect good, effectively can test air heat diffusional effect in loose coal.
For achieving the above object, the technical solution adopted in the utility model is: air heat diffusion test experimental provision in loose coal, it is characterized in that: comprise the coal body splendid attire pipe for splendid attire loose coal and the gas splendid attire pipe for generation of thermal current, and for supporting the support of described coal body splendid attire pipe and gas splendid attire pipe, described support is connected with coal body splendid attire pipe; one end of described coal body splendid attire pipe is connected by reducer union with one end of gas splendid attire pipe, the other end of described coal body splendid attire pipe is provided with for closing or opening its open-ended first valve, the other end of described gas splendid attire pipe is provided with for closing or opening its open-ended second valve, the 3rd valve being communicated with gas splendid attire pipe for controlling coal body splendid attire pipe or turning off is provided with in described reducer union, dividing plate is provided with in described coal body splendid attire pipe, the thermal current described dividing plate offered in supplied gas splendid attire pipe enters the pore of coal body splendid attire pipe, described coal body splendid attire pipe is provided with and first baroceptor that insert into the inner perpendicular with it, described gas splendid attire pipe is provided with and second baroceptor that insert into the inner and temperature sensor perpendicular with it, described first baroceptor and the end face stretching into coal body splendid attire pipe offers the static pressure perception hole of laying along the first baroceptor length direction, described first baroceptor and the sidewall stretching into the position of coal body splendid attire pipe offers towards the total head perception hole of gas splendid attire pipe, the outer wall of described gas splendid attire pipe is wound with the electrical heating elements for heating its inner air.
Air heat diffusion test experimental provision in above-mentioned loose coal, it is characterized in that: described support comprises rack rod, disk and stripe board, described disk is fixedly mounted on rack rod, described disk is laid with at least two pairs of bolts hole along its circumferencial direction, described stripe board is connected one to one by bolt hole described in two bolts and a pair, on described coal body splendid attire pipe, cover has clip, described stripe board offers the mounting hole stretched into for the threaded connector on clip.
In above-mentioned loose coal, air heat diffusion test experimental provision, is characterized in that: the caliber of described coal body splendid attire pipe is less than the caliber of gas splendid attire pipe.
Air heat diffusion test experimental provision in above-mentioned loose coal, it is characterized in that: described first valve is arranged on described coal body splendid attire pipe by the first block plate with opening, described second valve is arranged on described gas splendid attire pipe by the second block plate with opening.
In above-mentioned loose coal, air heat diffusion test experimental provision, is characterized in that: described first valve, the second valve and the 3rd valve are ball valve.
In above-mentioned loose coal, air heat diffusion test experimental provision, is characterized in that: described first baroceptor extends to the central axis of coal body splendid attire pipe.
In above-mentioned loose coal, air heat diffusion test experimental provision, is characterized in that: described electrical heating elements is enclosed with layer of glass heat-insulation layer, described fiberglass insulation is enclosed with one deck tinfoil paper layer.
Air heat diffusion test experimental provision in above-mentioned loose coal, it is characterized in that: described coal body splendid attire pipe offers multiple the first threaded hole for described first baroceptor that is threaded, described gas splendid attire pipe offers the second threaded hole for described second baroceptor that is threaded and the 3rd threaded hole for the described temperature sensor that is threaded.
The utility model compared with prior art has the following advantages:
1, structure of the present utility model is simple, rationally novel in design.
2, the utility model simulates high-temperature area in loose coal by adopting heat tape single source to produce heat, and by heating compared with loose coal heat production, heat source region temperature more easily controls; And by the aperture of control second valve, the gas flow can guaranteeing to enter gas splendid attire pipe is less thus guarantee that gas splendid attire pipe easily keeps relative constant temperature.
3, the utility model is by arranging fiberglass insulation and tinfoil paper layer, forms two-layer heat-insulation layer, while raising heating efficiency, also improves the electrical insulation characteristics of device, ensure that the security of experimentation.
4, the utility model connects the angle that can change stripe board and rack rod by regulating the stripe board bolt hole different from disk, degree of regulation can reach 15 °, thus change the overall angle of coal body splendid attire pipe and gas splendid attire pipe, simulate the impact in the heated airflow thermal diffusion of different orientations place of coal body splendid attire pipe and gas splendid attire pipe, its structure is simple, can regulate the overall angle of coal body splendid attire pipe and gas splendid attire pipe flexibly, easily.
5, of the present utility model to realize cost low, and result of use is good, is convenient to promote the use of.
Below by drawings and Examples, the technical solution of the utility model is described in further detail.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Fig. 2 is the annexation schematic diagram of the utility model coal body splendid attire pipe and gas splendid attire pipe.
Fig. 3 is the structural representation of the utility model first baroceptor.
Fig. 4 is the structural representation of the utility model support.
Fig. 5 is the structural representation of the utility model clip.
Description of reference numerals:
1-coal body splendid attire pipe; 2-gas splendid attire pipe; 3-support;
3-1-rack rod; 3-2-disk; 3-3-stripe board;
3-4-bolt hole; 3-5-bolt; 3-6-mounting hole;
4-the first valve; 5-the second valve; 6-the three valve;
7-the first baroceptor; 7-1-static pressure perception hole; 7-2-total head perception hole;
7-3-the first air pressure sensing module; 7-4-the second air pressure sensing module; 7-5-housing;
8-the second baroceptor; 9-temperature sensor; 10-electrical heating elements;
11-clip; 11-1-threaded connector; 11-2-clip body;
12-reducer union; 13-the first block plate; 14-the second block plate;
15-dividing plate; 16-fiberglass insulation; 17-tinfoil paper layer.
Embodiment
Air heat diffusion test experimental provision in loose coal as shown in Figure 1, Figure 2 and Figure 3, comprise the coal body splendid attire pipe 1 for splendid attire loose coal and the gas splendid attire pipe 2 for generation of thermal current, and for supporting the support 3 of described coal body splendid attire pipe 1 and gas splendid attire pipe 2, described support 3 is connected with coal body splendid attire pipe 1; one end of described coal body splendid attire pipe 1 is connected by reducer union 12 with one end of gas splendid attire pipe 2, the other end of described coal body splendid attire pipe 1 is provided with for closing or opening its open-ended first valve 4, the other end of described gas splendid attire pipe 2 is provided with for closing or opening its open-ended second valve 5, the 3rd valve 6 being communicated with gas splendid attire pipe 2 for controlling coal body splendid attire pipe 1 or turning off is provided with in described reducer union 12, dividing plate 15 is provided with in described coal body splendid attire pipe 1, the thermal current described dividing plate 15 offered in supplied gas splendid attire pipe 2 enters the pore of coal body splendid attire pipe 1, the aperture of described pore is less than coal body particle diameter, coal body can be stoped to pass through, described coal body splendid attire pipe 1 is provided with and first baroceptor 7 that insert into the inner perpendicular with it, described gas splendid attire pipe 2 is provided with and second baroceptor 8 that insert into the inner and temperature sensor 9 perpendicular with it, described first the baroceptor 7 and end face stretching into coal body splendid attire pipe 1 offers the static pressure perception hole 7-1 laid along the first baroceptor 7 length direction, described first the baroceptor 7 and sidewall stretching into the position of coal body splendid attire pipe 1 offers towards the total head perception hole 7-2 of gas splendid attire pipe 2, the outer wall of described gas splendid attire pipe 2 is wound with the electrical heating elements 10 for heating its inner air.
In the present embodiment, produce heat simulate high-temperature area in loose coal by adopting heat tape single source, and by heating compared with loose coal heat production, heat source region temperature more easily controls; And by the aperture of control second valve 5, the gas flow can guaranteeing to enter gas splendid attire pipe 2 is less thus guarantee that gas splendid attire pipe 2 easily keeps relative constant temperature.
In the present embodiment, described first baroceptor 7 comprises the first air pressure sensing module 7-3 and the second air pressure sensing module 7-4, first air pressure sensing module 7-3 is connected with static pressure perception hole 7-1 for receiving the air-flow inputted from static pressure perception hole 7-1, second air pressure sensing module 7-4 is connected with total head perception hole 7-2 for receiving the air-flow inputted from total head perception hole 7-2, and described first air pressure sensing module 7-3 and the second air pressure sensing module 7-4 is all encapsulated in the housing 7-5 of the first baroceptor 7.
As shown in Figure 4 and Figure 5, described support 3 comprises rack rod 3-1, disk 3-2 and stripe board 3-3, described disk 3-2 is fixedly mounted on rack rod 3-1, described disk 3-2 is laid with at least two couples of bolt hole 3-4 along its circumferencial direction, described stripe board 3-3 is connected one to one by bolt hole 3-4 described in two bolt 3-5 and a pair, on described coal body splendid attire pipe 1, cover has clip 11, described stripe board 3-3 offers the mounting hole 3-6 stretched into for the threaded connector 11-1 on clip 11.
In the present embodiment, the angle that can change stripe board 3-3 and rack rod 3-1 is connected by regulating the stripe board 3-3 bolt hole 3-4 different from disk 3-2, degree of regulation can reach 15 °, thus change the overall angle of coal body splendid attire pipe 1 and gas splendid attire pipe 2, simulate the impact in the heated airflow thermal diffusion of different orientations place of coal body splendid attire pipe 1 and gas splendid attire pipe 2.Its structure is simple, can regulate the overall angle of coal body splendid attire pipe 1 and gas splendid attire pipe 2 flexibly, easily.
As shown in Figure 2, the caliber of described coal body splendid attire pipe 1 is less than the caliber of gas splendid attire pipe 2, and one end of described coal body splendid attire pipe 1 is connected with one end of gas splendid attire pipe 2 by reducer union 12, and described 3rd valve 6 is arranged in described reducer union 12.
As shown in Figure 2, described first valve 4 is arranged on described coal body splendid attire pipe 1 by the first block plate 13 with opening, thus is conveniently arranged on coal body splendid attire pipe 1 by the first valve 4; Described second valve 5 is arranged on described gas splendid attire pipe 2 by the second block plate 14 with opening, thus is conveniently arranged on gas splendid attire pipe 2 by the second valve 5.
In the present embodiment, described first valve 4, second valve 5 and the 3rd valve 6 are ball valve.
As shown in Figure 2, one end of described first baroceptor 7 extends to the central axis M of coal body splendid attire pipe 1.First baroceptor 7 can be flutterred and grasp the change of more real pressure, make the result of experiment more accurate.
As shown in Figure 2, described electrical heating elements 10 is enclosed with layer of glass heat-insulation layer 16, described fiberglass insulation 16 is enclosed with one deck tinfoil paper layer 17.By arranging fiberglass insulation 16 and tinfoil paper layer 17, forming two-layer heat-insulation layer, while raising heating efficiency, also improving the electrical insulation characteristics of device, ensure that the security of experimentation.
In the present embodiment, described coal body splendid attire pipe 1 offers multiple the first threaded hole for described first baroceptor 7 that is threaded, described gas splendid attire pipe 2 offers for the second threaded hole of described second baroceptor 8 that is threaded and the 3rd threaded hole for the described temperature sensor 9 that is threaded.Be threaded connection the first baroceptor 7, second baroceptor 8 and temperature sensor 9, while guarantee first baroceptor 7, second baroceptor 8 and temperature sensor 9 are installed, screw thread can also be utilized to realize sealing purpose.
As shown in Figure 5, described clip 11 comprises two bolted clip body 11-2, and described threaded connector 11-1 is connected on one of them clip body 11-2.
In the present embodiment, in this loose coal, air heat spreads test experimental provision in use, and be first the preparatory stage of experiment, the preparatory stage of described experiment is specially:
First choose experiment coal sample reduction and use standard sieve to sieve out 5 kinds of particle diameter coal samples, and being numbered successively as 1#, 2#, 3#, 4#, 5# according to particle size.Each for this experimental provision component is connected, open the first block plate 13 1# coal sample good for fragmentation to be loaded in coal body splendid attire pipe 1 and between the first block plate 13 and dividing plate 15, then experimental provision is installed, simultaneously the first baroceptor 7, second baroceptor 8 and temperature sensor 9 are installed setting and are put in place, and make coal body splendid attire pipe 1 and gas splendid attire pipe 2 vertically be connected on support 3, be positioned at directly over gas splendid attire pipe 2 to make coal body splendid attire pipe 1, last under the condition of closedown first valve 4, by the second valve 5 to pipeline inflation and make pressure remain on 0.2MPa, soap bubble method test unit overall tightness is smeared in employing, then the first valve 4 is opened, air-tight test terminates.Close the second valve 5 and the 3rd valve 6, keep gas splendid attire pipe 2 airtight space, the Preparatory work of experiment stage terminates.
Then enter the experimental phase, be specially:
The experimental temperature value of design temperature controller, to heat to gas splendid attire pipe 2 for electrical heating elements 10 switches on power, detected the temperature value of gas in gas splendid attire pipe 2 by temperature sensor 9, detect gas pressure change in gas splendid attire pipe 2 by the second baroceptor 8.When in gas splendid attire pipe 2, air heat source temperature T reaches temperature preset value, such as: the some temperature values etc. in 30 DEG C, 60 DEG C, 90 DEG C, 120 DEG C, 150 DEG C and 200 DEG C, temperature controller is that electrical heating elements 10 auto-breaking stops heating.When gas temperature reduces again can automatically electrified regulation to keep the relative constant temperature of gas in gas splendid attire pipe 2.The second valve 5, the 3rd valve 6 is opened after gas temperature in gas splendid attire pipe 2 is stable, hot gas in gas splendid attire pipe 2 can diffuse in coal body splendid attire pipe 1 by the pore on dividing plate 15 due to buoyancy lift and differential pressure action, reads different measuring points position gas total head E, static pressure E by multiple first baroceptors 7 in coal body splendid attire pipe 1
1.Then dynamic pressure
if assuming that density p is constant just can obtain gas velocity angle value
Then be numbered X-axis with measuring point, velocity amplitude is Y-axis, to draw under experimental temperature gas velocity v curve in loose coal.Wherein measuring point numbering is the numbering of the first baroceptor 7, and in the present embodiment, the quantity of the first baroceptor 7 is six, and so measuring point numbering is just six.By changing the temperature T of setting thermal source, carrying out many experiments according to above-mentioned step, gas flow rate curve in loose coal can be obtained under multiple different heat sources temperature T.Relatively in different heat sources temperature T situation, in loose coal, the Changing Pattern of not each measuring point speed v curve in the same time, obtains the affecting laws of heat source strength to the thermal diffusion of different distance place.
Then use 2#, 3#, 4#, 5# coal sample of different-grain diameter, repeat above experimental procedure and carry out many experiments.Different measuring points place speed v value curve in loose coal under a certain heat source temperature T (such as: 150 DEG C) under drawing different-grain diameter, and under comparing different-grain diameter situation, each measuring point velocity amplitude and Changing Pattern thereof under heat source temperature T certain condition.
Wherein, the pressure parameter of reactive flow rule can be directly detected by the first baroceptor 7, first baroceptor 7 precision can reach 1Pa, the self-diffusion effect of trickle hot-air in loose coal can be detected, improve accuracy and the practicality of experimental provision, the pressure of thermal current in gas splendid attire pipe 2 can be known by the second baroceptor 8 in real time.
Composition graphs 1 and Fig. 3, the angle of stripe board 3-3 on disk 3-2 is adjusted successively according to clockwise direction, can first adjust 30 °, that is: the stripe board 3-3 bolt hole 3-4 different from disk 3-2 is made to connect, thus change the overall angle of coal body splendid attire pipe 1 and gas splendid attire pipe 2, and then carry out above-mentioned revision test, draw a certain temperature when testing pipeline and rack rod 30 ° of angles, gas velocity v curve in different measuring points place in loose coal under a certain particle diameter, then increase angle successively gradually and carry out testing gas velocity v curve in different measuring points place in the loose coal that obtains under multiple different experiments angle, analyze the affecting laws to the thermal diffusion of different distance place when obtaining different angles θ.
Experimental data under last comprehensive domain size distribution ε, heat source strength T and azimuth angle theta, draw the impact on thermal diffusion migration in different spatial place in loose coal such as particle diameter, thermal source, orientation, that better probes into the development of coal fire entrainments oxygen supply process certainly.
The above; it is only preferred embodiment of the present utility model; not the utility model is imposed any restrictions; every above embodiment is done according to the utility model technical spirit any simple modification, change and equivalent structure transformation, all still belong in the protection domain of technical solutions of the utility model.
Claims (8)
1. air heat diffusion test experimental provision in loose coal, it is characterized in that: comprise the coal body splendid attire pipe (1) for splendid attire loose coal and the gas splendid attire pipe (2) for generation of thermal current, and for supporting the support (3) of described coal body splendid attire pipe (1) and gas splendid attire pipe (2), described support (3) is connected with coal body splendid attire pipe (1); one end of described coal body splendid attire pipe (1) is connected by reducer union (12) with one end of gas splendid attire pipe (2), the other end of described coal body splendid attire pipe (1) is provided with for closing or opening its open-ended first valve (4), the other end of described gas splendid attire pipe (2) is provided with for closing or opening its open-ended second valve (5), the 3rd valve (6) being communicated with gas splendid attire pipe (2) for controlling coal body splendid attire pipe (1) or turning off is provided with in described reducer union (12), dividing plate (15) is provided with in described coal body splendid attire pipe (1), the thermal current described dividing plate (15) offered in supplied gas splendid attire pipe (2) enters the pore of coal body splendid attire pipe (1), described coal body splendid attire pipe (1) is provided with and first baroceptor (7) that insert into the inner perpendicular with it, described gas splendid attire pipe (2) is provided with and second baroceptor (8) that insert into the inner and temperature sensor (9) perpendicular with it, the end face that described first baroceptor (7) stretches into coal body splendid attire pipe (1) offers the static pressure perception hole (7-1) of laying along the first baroceptor (7) length direction, the sidewall that described first baroceptor (7) stretches into the position of coal body splendid attire pipe (1) offers the total head perception hole (7-2) towards gas splendid attire pipe (2), the outer wall of described gas splendid attire pipe (2) is wound with the electrical heating elements (10) for heating its inner air.
2. air heat diffusion test experimental provision in loose coal according to claim 1, it is characterized in that: described support (3) comprises rack rod (3-1), disk (3-2) and stripe board (3-3), described disk (3-2) is fixedly mounted on rack rod (3-1), described disk (3-2) is gone up and is laid with at least two pairs of bolts hole (3-4) along its circumferencial direction, described stripe board (3-3) is connected one to one by two bolts (3-5) and bolt hole (3-4) described in a pair, the upper cover of described coal body splendid attire pipe (1) has clip (11), described stripe board (3-3) offers the mounting hole (3-6) stretched into for the threaded connector (11-1) on clip (11).
3. air heat diffusion test experimental provision in loose coal according to claim 1, is characterized in that: the caliber of described coal body splendid attire pipe (1) is less than the caliber of gas splendid attire pipe (2).
4. air heat diffusion test experimental provision in loose coal according to claim 1, it is characterized in that: described first valve (4) is arranged on described coal body splendid attire pipe (1) by first block plate (13) with opening, described second valve (5) is arranged on described gas splendid attire pipe (2) by second block plate (14) with opening.
5. air heat diffusion test experimental provision in loose coal according to claim 1, is characterized in that: described first valve (4), the second valve (5) and the 3rd valve (6) are ball valve.
6. air heat diffusion test experimental provision in loose coal according to claim 1, is characterized in that: described first baroceptor (7) extends to the central axis of coal body splendid attire pipe (1).
7. air heat diffusion test experimental provision in loose coal according to claim 1, it is characterized in that: described electrical heating elements (10) is enclosed with layer of glass heat-insulation layer (16), described fiberglass insulation (16) is enclosed with one deck tinfoil paper layer (17).
8. air heat diffusion test experimental provision in loose coal according to claim 1, it is characterized in that: described coal body splendid attire pipe (1) offers multiple the first threaded hole for described first baroceptor (7) that is threaded, described gas splendid attire pipe (2) offers for the second threaded hole of described second baroceptor (8) that is threaded and the 3rd threaded hole for the described temperature sensor (9) that is threaded.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520402412.8U CN204694659U (en) | 2015-06-11 | 2015-06-11 | Air heat diffusion test experimental provision in loose coal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520402412.8U CN204694659U (en) | 2015-06-11 | 2015-06-11 | Air heat diffusion test experimental provision in loose coal |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204694659U true CN204694659U (en) | 2015-10-07 |
Family
ID=54234936
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520402412.8U Expired - Fee Related CN204694659U (en) | 2015-06-11 | 2015-06-11 | Air heat diffusion test experimental provision in loose coal |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204694659U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104880484A (en) * | 2015-06-11 | 2015-09-02 | 西安科技大学 | Experimental device for testing gas heat diffusion in loose coal body |
-
2015
- 2015-06-11 CN CN201520402412.8U patent/CN204694659U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104880484A (en) * | 2015-06-11 | 2015-09-02 | 西安科技大学 | Experimental device for testing gas heat diffusion in loose coal body |
| CN104880484B (en) * | 2015-06-11 | 2017-11-24 | 西安科技大学 | Gas thermal diffusion test experimental provision in loose coal |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201307109Y (en) | Multi-parameter coupling fire spread tester | |
| CN106441907B (en) | A kind of split type heating system of constant volume combustion bomb | |
| CN104880484B (en) | Gas thermal diffusion test experimental provision in loose coal | |
| CN204575496U (en) | The gas diffusion test confined chamber of adjustable meteorologic parameter | |
| CN204694659U (en) | Air heat diffusion test experimental provision in loose coal | |
| CN203191273U (en) | Thermogravimetric analysis device for coal performance test | |
| CN204556432U (en) | Use for laboratory thermogravimetric analyzer | |
| CN201837599U (en) | High-temperature blast drying oven | |
| CN206670390U (en) | A kind of gas kiln intelligent monitor system | |
| CN204988323U (en) | Adjustable ultra -low temperature environment test device | |
| CN204495694U (en) | Flue gas in power station boiler low temperature acid dew piont corrosion experimental provision | |
| CN205229017U (en) | Weather -proof testing machine of xenon lamp | |
| CN208818638U (en) | A kind of flue gas analyzer spectrometer thermostat | |
| CN201196631Y (en) | Performance measurement system for air/fuel ratio oxygen sensor | |
| CN207779939U (en) | Carbonaceous solids substance gasification reaction rate test device | |
| CN103808560B (en) | For 500-4.2K material static mechanical properties temperature control test macro | |
| CN206089037U (en) | Powder sulphur sprays formula sulfur dioxide generator | |
| CN202853364U (en) | Furnace pressure controller for fire endurance test furnace | |
| CN202973809U (en) | Temperature control device of hot air circulating oven | |
| CN206096057U (en) | Adiabatic spontaneous combustion experimental apparatus of coal | |
| CN207881735U (en) | A kind of lambda sensor static state λ tests system | |
| CN205886907U (en) | High/low temperature alternating temperature humidity teat box | |
| CN205003126U (en) | Big board burning test device of veneer type fireproof paint | |
| CN204897999U (en) | Heat treatment furnace of multiple spot atmosphere control | |
| CN206974151U (en) | A kind of pressure proportional pulse sequence combustion control equipment applied to shuttle kiln |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20151007 Termination date: 20160611 |