CN103235005B - For the gas path device of heat-insulating spontaneous combustion testing apparatus - Google Patents
For the gas path device of heat-insulating spontaneous combustion testing apparatus Download PDFInfo
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- CN103235005B CN103235005B CN201310141565.7A CN201310141565A CN103235005B CN 103235005 B CN103235005 B CN 103235005B CN 201310141565 A CN201310141565 A CN 201310141565A CN 103235005 B CN103235005 B CN 103235005B
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- Prior art keywords
- heat
- draft tube
- spontaneous combustion
- testing apparatus
- preheating
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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 18
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 29
- 230000006698 induction Effects 0.000 claims abstract description 20
- 230000008676 import Effects 0.000 claims abstract description 4
- 239000007921 spray Substances 0.000 claims abstract description 4
- 238000006243 chemical reaction Methods 0.000 claims description 3
- 230000002687 intercalation Effects 0.000 claims description 3
- 238000009830 intercalation Methods 0.000 claims description 3
- 239000007789 gas Substances 0.000 description 20
- 239000003245 coal Substances 0.000 description 16
- 238000000034 method Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 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
- 230000006872 improvement 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
- 230000017525 heat dissipation Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 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
- 238000012546 transfer Methods 0.000 description 1
Abstract
The invention discloses 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 preheating water pipe, described preheating water pipe imports heat source water from preheating water inlet, described preheating water pipe has towards the spray orifice of draft tube.The present invention have simple and compact for structure, with low cost, easy and simple to handle, automaticity is high, can improve the advantages such as measuring accuracy.
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 adopting heat-insulating to design.
Background technology
When the speed that coal produces heat exceedes the speed of heat radiation, the phenomenon of spontaneous combustion may be there is in colliery or storage.In the transport of in order to avoid the spontaneous combustion of coal, should the generation of the heat of coal be reduced as far as possible and strengthen heat dissipation capacity as far as possible in dump, this principle should be applied to all collieries, process, piling up with coal.Therefore, need to carry out spontaneous combustion test to coal sample.General coal sample being put carries out adiabatic spontaneous combustion test in the reactor, and when reactor temperature rises to T2 by T1, gas before entering the reactor its temperature also should rise to T2 by T1, and its reaction time controls in tolerance band.Therefore now need design a kind of air shooter, realize above function by this device.
Summary of the invention
The technical problem to be solved in the present invention is just: for prior art exist technical matters, 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 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 preheating water pipe, described preheating water pipe imports heat source water from preheating water inlet, described preheating water pipe has towards the spray orifice of draft tube.
As a further improvement on the present invention:
Described draft tube is wrapped in the outside of reactor in the shape of a spiral.
The bottom of described air induction conduit is coniform.
The end of described air induction conduit intercalation reaction device one end is closed, and sidewall offers gas port.
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, automatically can complete the testing process to coal sample spontaneous combustion, whole process is very reliable, and measuring accuracy is high.
Accompanying drawing explanation
Fig. 1 is structural principle schematic diagram of the present invention.
Fig. 2 is the structural principle schematic diagram of air induction conduit in 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 outside being arranged in reactor 3 in spiral shape, 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.The copper tube that draft tube 11 can adopt thermal conductivity splendid, to strengthen the heat transfer of environment temperature to gas in draft tube 11.Preheating assembly 2 comprises preheating water pipe 21, preheating water pipe 21 imports heat source water from preheating water inlet 22, this heat source water can derive from a heat source water container 23, preheating water pipe 21 has the Small Holes distributed according to certain rules, this hole forms the spray orifice towards draft tube 11, hot water in preheating water pipe 21 is ejected into draft tube 11 from these Small Holes, simultaneously also by the water temp. heating of draft tube 11 surrounding.
In the present embodiment, draft tube 11 is wrapped in the outside of reactor 3 in the shape of a spiral, can provide comparatively uniform environment temperature.
In the present embodiment, as shown in Figure 2, the bottom of air induction conduit 12 is coniform, and the end of air induction conduit 12 intercalation reaction device 3 one end is closed, and sidewall offers gas port, solves 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 place by this some holes.
Principle of work: coal sample be positioned in reactor 3, reactor 3 is positioned in water-bath assembly.The coefficient of heat conductivity of reactor 3 is extremely low, and make the temperature difference of coal sample temperature in the temperature of water in water-bath assembly and reactor 3 remain in a very low range by heating component, the oxygen entering 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 an adiabatic environment at the trial.Before coal sample temperature from ambient rises to 40 degree, make the temperature rise of coal sample by caused by external heat by gas circuit assembly 1, preheating assembly 2, self do not occur to be oxidized accumulated heat.Whole experimentation is made to realize full automation by control system.
Below be only the preferred embodiment of the present invention, protection scope of the present invention be not only confined to above-described embodiment, all technical schemes belonged under thinking of the present invention all belong to protection scope of the present invention.It should be pointed out that for those skilled in the art, some improvements and modifications without departing from the principles of the present invention, should be considered as protection scope of the present invention.
Claims (4)
1. the gas path device 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), described preheating water pipe (21) imports heat source water from preheating water inlet (22), described preheating water pipe (21) has towards the spray orifice of draft tube (11).
2. the gas path device for heat-insulating spontaneous combustion testing apparatus according to claim 1, is characterized in that, described draft tube (11) is wrapped in the outside of reactor (3) in the shape of a spiral.
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 of described air induction conduit (12) intercalation reaction device (3) one end is closed, and sidewall offers gas port.
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 |
|---|---|
| CN103235005A CN103235005A (en) | 2013-08-07 |
| CN103235005B true 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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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103235004B (en) * | 2013-04-23 | 2015-12-23 | 湖南三德科技股份有限公司 | A kind of heat-insulating spontaneous combustion testing apparatus |
| 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 |
| CN110568017B (en) * | 2019-09-03 | 2022-03-29 | 西安近代化学研究所 | Device and method for testing parameters of combustion-to-detonation process |
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2013
- 2013-04-23 CN CN201310141565.7A patent/CN103235005B/en not_active Expired - Fee Related
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| CN103235005A (en) | 2013-08-07 |
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Granted publication date: 20160127 |