CN103235005A - Air path device for heat insulation type spontaneous combustion testing device - Google Patents
Air path device for heat insulation type spontaneous combustion testing device Download PDFInfo
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- CN103235005A CN103235005A CN2013101415657A CN201310141565A CN103235005A CN 103235005 A CN103235005 A CN 103235005A CN 2013101415657 A CN2013101415657 A CN 2013101415657A CN 201310141565 A CN201310141565 A CN 201310141565A CN 103235005 A CN103235005 A CN 103235005A
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- spontaneous combustion
- preheating
- heat
- air
- combustion testing
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- 238000002485 combustion reaction Methods 0.000 title claims abstract description 20
- 230000002269 spontaneous effect Effects 0.000 title claims abstract description 20
- 238000012360 testing method Methods 0.000 title claims abstract description 19
- 238000009413 insulation Methods 0.000 title abstract 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 29
- 230000006698 induction Effects 0.000 claims description 17
- 239000007921 spray Substances 0.000 claims description 3
- 238000005507 spraying Methods 0.000 abstract 1
- 239000007789 gas Substances 0.000 description 20
- 239000003245 coal Substances 0.000 description 16
- 238000013461 design Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 230000008676 import Effects 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 230000020169 heat generation Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 230000035484 reaction time Effects 0.000 description 1
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- Investigating Or Analyzing Materials Using Thermal Means (AREA)
Abstract
The invention discloses an air path device for a heat insulation type spontaneous combustion testing device. The air path device comprises an air path assembly and a preheating assembly, wherein the air path assembly comprises an air inlet pipe and an air inlet guide pipe, the air inlet pipe is communicated with an external air supply part through an air inlet, an air outlet of the air inlet pipe is communicated with the air inlet guide pipe, the air inlet guide pipe is inserted in a reactor of the heat insulation type spontaneous combustion testing device, the preheating assembly comprises a preheating water pipe, heat source water is introduced into the preheating water pipe from a preheating water inlet, and a spraying hole facing towards the air inlet pipe is formed in the preheating water pipe. The air path device has the advantages of simple and compact structure, low cost, convenience and simplicity in operation, high automation degree, and the like, and is capable of increasing the testing precision.
Description
Technical field
The present invention is mainly concerned with coal sample checkout equipment field, refers in particular to a kind of coal sample spontaneous combustion testing apparatus that adopts the heat-insulating design.
Background technology
When the speed of coal generation heat surpassed the speed of heat radiation, the phenomenon of spontaneous combustion may appear in colliery or storage.For fear of the spontaneous combustion of coal, should reduce in the dump as far as possible coal heat generation and strengthen heat dissipation capacity as far as possible, this principle should be applied to all collieries, handle, pile up in the transportation with coal.Therefore, need carry out the spontaneous combustion test to coal sample.Generally coal sample is placed on and carries out adiabatic spontaneous combustion test in the reactor, when reactor temperature rose to T2 by T1, gas its temperature before entering reactor also should rise to T2 by T1, and its reaction time control is in tolerance band.Therefore the existing a kind of air shooter of design that needs is realized above function by this device.
Summary of the invention
The technical problem to be solved in the present invention just is: at the technical matters that prior art exists, the invention provides a kind of simple and compact for structure, with low cost, easy and simple to handle, automaticity is high, can improve the gas path device that is used for heat-insulating spontaneous combustion testing apparatus of measuring accuracy.
For solving the problems of the technologies described above, the present invention by the following technical solutions:
A kind of gas path device for heat-insulating spontaneous combustion testing apparatus, comprise gas circuit assembly and preheating assembly, described gas circuit assembly comprises draft tube and air induction conduit, described draft tube is connected with outside air supply part through air intake opening, the gas outlet of described draft tube is connected with air induction conduit, and described air induction conduit is inserted in the reactor of heat-insulating spontaneous combustion testing apparatus; Described preheating assembly comprises the preheating water pipe, imports heat source water from the preheating water inlet on the described preheating water pipe, has the spray orifice towards draft tube on the described preheating water pipe.
As a further improvement on the present invention:
Described draft tube shape in the shape of a spiral is wrapped in the outside of reactor.
The bottom of described air induction conduit is coniform.
The end that described air induction conduit inserts reactor one end is closed, offers gas port on the sidewall.
Compared with prior art, the invention has the advantages that: the gas path device for heat-insulating spontaneous combustion testing apparatus of the present invention, simple and compact for structure, with low cost, easy and simple to handle, can finish the testing process to the coal sample spontaneous combustion automatically, whole process is very reliable, the measuring accuracy height.
Description of drawings
Fig. 1 is structural principle synoptic diagram of the present invention.
Fig. 2 is the structural principle synoptic diagram of air induction conduit among the present invention.
Marginal data:
1, gas circuit assembly; 11, draft tube; 12, air induction conduit; 13, air intake opening; 14, gas outlet; 2, preheating assembly; 21, preheating water pipe; 22, preheating water inlet; 23, heat source water container; 3, reactor.
Embodiment
Below with reference to Figure of description and specific embodiment the present invention is described in further details.
As shown in Figure 1, gas path device for heat-insulating spontaneous combustion testing apparatus of the present invention, comprise gas circuit assembly 1 and preheating assembly 2, gas circuit assembly 1 comprises draft tube 11 and air induction conduit 12, draft tube 11 is connected with outside air supply part through air intake opening 13, draft tube 11 is the outside that spiral is arranged in reactor 3, and the gas outlet 14 of draft tube 11 is connected with air induction conduit 12, and air induction conduit 12 is inserted in the cup of reactor 3.Draft tube 11 can adopt the splendid copper tube of thermal conductivity, to strengthen environment temperature to the heat conduction of gas in the draft tube 11.Preheating assembly 2 comprises preheating water pipe 21, import heat source water from preheating water inlet 22 on the preheating water pipe 21, this heat source water can derive from the heat source water container 23, have the Small Holes that distributes according to certain rules on the preheating water pipe 21, this hole forms the spray orifice towards draft tube 11, hot water in the preheating water pipe 21 is ejected on the draft tube 11 from these Small Holes, simultaneously also with the heating of the water temperature around the draft tube 11.
In the present embodiment, draft tube 11 shape in the shape of a spiral is wrapped in the outside of reactor 3, and environment temperature comparatively uniformly can be provided.
In the present embodiment, as shown in Figure 2, the bottom of air induction conduit 12 is coniform, and the end that air induction conduit 12 inserts reactors 3 one ends is closed, offers gas port on the sidewall, has solved tracheae and should not insert coal sample and easy blockage problem.Gas port can be designed to follow certain rule, makes gas more evenly be transported to reactor 3 inner chamber each point places by these holes.
Principle of work: coal sample is positioned in the reactor 3, and reactor 3 is positioned in the water-bath assembly.The coefficient of heat conductivity of reactor 3 is extremely low, and by heating component the temperature of water in the water-bath assembly and the temperature difference of reactor 3 interior coal sample temperature are remained in the very low range, the oxygen that enters reactor 3 is preheated assembly 2 and is preheating to the temperature identical with coal sample before entering reactor 3, by these measures coal sample is in the adiabatic environment at the trial.The coal sample temperature was risen to 40 degree by room temperature before, the long-pending heat of oxidation self did not take place by due to the external heat in the temperature rise that makes coal sample by gas circuit assembly 1, preheating assembly 2.Make whole experiment realize full automation by control system.
Below only be preferred implementation of the present invention, protection scope of the present invention also not only is confined to above-described embodiment, and all technical schemes that belongs under the thinking of the present invention all belong to protection scope of the present invention.Should be pointed out that for those skilled in the art the some improvements and modifications not breaking away under the principle of the invention prerequisite should be considered as protection scope of the present invention.
Claims (4)
1. gas path device that is used for heat-insulating spontaneous combustion testing apparatus, it is characterized in that, comprise gas circuit assembly (1) and preheating assembly (2), described gas circuit assembly (1) comprises draft tube (11) and air induction conduit (12), described draft tube (11) is connected with outside air supply part through air intake opening (13), the gas outlet (14) of described draft tube (11) is connected with air induction conduit (12), and described air induction conduit (12) is inserted in the reactor (3) of heat-insulating spontaneous combustion testing apparatus; Described preheating assembly (2) comprises preheating water pipe (21), and described preheating water pipe (21) is gone up from preheating water inlet (22) and imported heat source water, has the spray orifice towards draft tube (11) on the described preheating water pipe (21).
2. the gas path device for heat-insulating spontaneous combustion testing apparatus according to claim 1 is characterized in that, described draft tube (11) shape in the shape of a spiral is wrapped in the outside of reactor (3).
3. the gas path device for heat-insulating spontaneous combustion testing apparatus according to claim 1 and 2 is characterized in that, the bottom of described air induction conduit (12) is coniform.
4. the gas path device for heat-insulating spontaneous combustion testing apparatus according to claim 1 and 2 is characterized in that, the end that described air induction conduit (12) inserts reactor (3) one ends is closed, offers gas port on the sidewall.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310141565.7A CN103235005B (en) | 2013-04-23 | 2013-04-23 | For the gas path device of heat-insulating spontaneous combustion testing apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310141565.7A CN103235005B (en) | 2013-04-23 | 2013-04-23 | For the gas path device of heat-insulating spontaneous combustion testing apparatus |
Publications (2)
| Publication Number | Publication Date |
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| CN103235005A true CN103235005A (en) | 2013-08-07 |
| CN103235005B CN103235005B (en) | 2016-01-27 |
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| CN201310141565.7A Expired - Fee Related CN103235005B (en) | 2013-04-23 | 2013-04-23 | For the gas path device of heat-insulating spontaneous combustion testing apparatus |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2014173208A1 (en) * | 2013-04-23 | 2014-10-30 | 湖南三德科技股份有限公司 | Adiabatic autoignition testing device |
| CN110568017A (en) * | 2019-09-03 | 2019-12-13 | 西安近代化学研究所 | Device and method for testing parameters of combustion-to-detonation process |
| CN107621480B (en) * | 2017-09-08 | 2023-07-21 | 西安科技大学 | Device and method for detecting spontaneous combustion ignition period of coal based on leading heat insulation |
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| CN2248321Y (en) * | 1996-01-18 | 1997-02-26 | 朱永裕 | Gas heating device |
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2013
- 2013-04-23 CN CN201310141565.7A patent/CN103235005B/en not_active Expired - Fee Related
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2014173208A1 (en) * | 2013-04-23 | 2014-10-30 | 湖南三德科技股份有限公司 | Adiabatic autoignition testing device |
| CN107621480B (en) * | 2017-09-08 | 2023-07-21 | 西安科技大学 | Device and method for detecting spontaneous combustion ignition period of coal based on leading heat insulation |
| CN110568017A (en) * | 2019-09-03 | 2019-12-13 | 西安近代化学研究所 | Device and method for testing parameters of combustion-to-detonation process |
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| CN103235005B (en) | 2016-01-27 |
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Granted publication date: 20160127 |