CN204495537U - The change of tunnel smoke components and migration rule experimental system during a kind of spontaneous combustion of simulated coal - Google Patents
The change of tunnel smoke components and migration rule experimental system during a kind of spontaneous combustion of simulated coal Download PDFInfo
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- CN204495537U CN204495537U CN201420598090.4U CN201420598090U CN204495537U CN 204495537 U CN204495537 U CN 204495537U CN 201420598090 U CN201420598090 U CN 201420598090U CN 204495537 U CN204495537 U CN 204495537U
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Abstract
The experimental system of the change of tunnel smoke components and migration rule when the utility model provides a kind of spontaneous combustion of simulated coal.This experimental system comprises: coal sample heating part, for giving the energising of its heating rod rear to coal sample heat temperature raising in coal sample tank, produces flue gas during this experimental system spontaneous combustion of simulated coal; Simulation tunnel portion, comprises tank connected tunnel agent model and the multiple circular exploration hole be arranged on the agent model of tunnel with coal sample; Gas componant measurement section, for measuring the composition of described flue gas, the gas chromatographicanalyzer comprising gas collector and be connected with gas collector; Temperature sensor; Hose and connected U-shaped differential manometer, for measuring the pressure changing of described flue gas; And for observing the form of described flue gas migration rule.System that reduces the volume and weight of equipment, reduce cost of manufacture and operation easier, multiple analog condition can be set, improve dirigibility and the stability of experimental system.
Description
1. technical field
The utility model patent belongs to mine safety coal spontaneous and gets angry experiment field, the design of the change of tunnel smoke components and migration rule experimental system when being specifically related to a kind of spontaneous combustion of simulated coal.
2. background technology
During spontaneous combustion of coal, distinguished and admirablely in tunnel to be heated, temperature slowly rises, and can discharge the gases such as methane, carbon monoxide, carbon dioxide, ethane, ethene, acetylene, consumes oxygen in tunnel, atmosphere in tunnel is changed.When the intensity of a fire is aggravated gradually, when transforming freely burning fire further, air flow in laneway temperature raises further, and variable density will be comparatively obvious.
Understand and grasp atmosphere in tunnel, temperature and density change situation, to mine coal spontaneous fire prevention and the freely burning fire disaster relief significant.Tradition mine fire analogue experiment installation, mainly simulated fire occur after Regularity of Smoke Movement and on distinguished and admirable impact, wind-warm syndrome, gas, air pressure and density change in tunnel under different conditions (distinguished and admirable, coal, type of heating etc.) parameter when rarely having people to design a kind of experimental provision simulation spontaneous combustion of coal (spontaneous fire), and distinguished and admirable migration rule in tunnel.
Therefore, the change of tunnel smoke components and migration rule experimental system when being necessary to design a kind of novel spontaneous combustion of simulated coal, can grasp coal spontaneous combustion fire occur after Regularity of Smoke Movement and on distinguished and admirable impact, the Parameter Variation such as atmosphere and temperature in different coal spontaneous combustion stage tunnel under different simulated conditions can be understood again.
3. summary of the invention
The change of tunnel smoke components and migration rule experimental system when the purpose of this utility model is to design a kind of spontaneous combustion of simulated coal, for the Parameter Variation such as atmosphere and temperature and distinguished and admirable migration rule in coal spontaneous combustion stage tunnel different under simulated conditions different in experiments of measuring tunnel.
The change of tunnel smoke components and migration rule experimental system when the utility model provides a kind of spontaneous combustion of simulated coal, flue gas change in different coal spontaneous combustion stage tunnel under it is characterized in that simulating different condition, mainly comprises coal sample heating part, simulation tunnel portion, gas componant measurement section, Temperature measuring section, pressure survey portion and flue gas migration process observation section.Wherein coal sample heating part comprise coal sample tank, the heating rod be arranged in described coal sample tank, the gland bonnet being connected to described coal sample tank and the air admission hole be arranged on described gland bonnet; Simulation tunnel portion comprises tunnel agent model and is arranged at the multiple circular exploration hole on the agent model of described tunnel; The gas chromatographicanalyzer that gas componant measurement section comprises gas collector and is connected with described gas collector; The temperature indicator that Temperature measuring section comprises temperature sensor and is connected with described temperature sensor; The U-shaped differential manometer that pressure survey portion comprises hose and is connected with described hose; Flue gas migration process observation section comprises the form being arranged at described tunnel agent model.
During described spontaneous combustion of simulated coal, described in the change of tunnel smoke components and migration rule experimental system, coal sample tank is circular fine copper material, the free space of 2cm is left in lower end, at described tunnel agent model bottom opening, linked together by screw thread and coal sample tank top.
During described spontaneous combustion of simulated coal, described in the change of tunnel smoke components and migration rule experimental system, heating rod be to coal sample heat temperature raising in described coal sample tank, can produce flue gas during this experimental system spontaneous combustion of simulated coal after to its energising;
During described spontaneous combustion of simulated coal, described in the change of tunnel smoke components and migration rule experimental system, gland bonnet is circular copper material, leaves heating rod installing port and described air admission hole, and install O-ring seal additional between coal sample tank in gland bonnet centre position.
During described spontaneous combustion of simulated coal tunnel agent model described in the change of tunnel smoke components and migration rule experimental system be stainless steel with right angle bend square laneway, at agent model top, tunnel, the circular exploration hole establishing difference in functionality is stayed at diverse location place.
During described spontaneous combustion of simulated coal, gas componant measurement section described in the change of tunnel smoke components and migration rule experimental system collects flue gas in the agent model of described tunnel by staying the circular exploration hole being located at agent model top, described tunnel, and input gas chromatographicanalyzer analyzes to obtain gas constituents.
During described spontaneous combustion of simulated coal, described in the change of tunnel smoke components and migration rule experimental system, temperature sensor stretches in the agent model of described tunnel by staying the circular exploration hole being located at agent model top, described tunnel by Temperature measuring section, is read the temperature variation of diverse location in the agent model of described tunnel by connected temperature indicator.
During described spontaneous combustion of simulated coal, pressure survey portion described in the change of tunnel smoke components and migration rule experimental system is by the circular exploration hole in the agent model of described tunnel connects the pressure changing that described tunnel agent model diverse location measured by U-shaped differential manometer.
During described spontaneous combustion of simulated coal, described in the change of tunnel smoke components and migration rule experimental system, form is the square transparent window of resistant to elevated temperatures quartz glass material, and is placed on the side of described tunnel agent model; For observing by producing in described coal sample tank and entering the migration rule of the flue gas in the agent model of described tunnel.
The utility model can by regulating distinguished and admirable size, changing type of heating, using the measures such as Coal rank instead, change different conditions parameter when simulation coal spontaneous is got angry, realize for wind-warm syndrome, gas, air pressure and density change in tunnel under the different simulated conditions different coal spontaneous combustion stage, and the research of distinguished and admirable migration rule in the agent model of tunnel.This utility model can realize the measurement for the Parameter Variation such as atmosphere and temperature and distinguished and admirable migration rule in the tunnel in spontaneous combustion of coal overall process, there is small investment, the feature such as workable, each physical state parameter in tunnel got angry for research significant.
4. accompanying drawing explanation
Figure of description is shown in by concrete accompanying drawing, wherein
The change of tunnel smoke components and migration rule experimental system front elevation during Fig. 1 spontaneous combustion of simulated coal
The change of tunnel smoke components and migration rule experimental system left view during Fig. 2 spontaneous combustion of simulated coal
The change of tunnel smoke components and migration rule experimental system vertical view during Fig. 3 spontaneous combustion of simulated coal
The change of tunnel smoke components and migration rule experimental system A-A cut-open view during Fig. 4 spontaneous combustion of simulated coal
In figure, functions is: 1, gland bonnet is closed coal sample tank; 2, air admission hole is blowing air; 3, heating rod is to coal sample heat temperature raising in coal sample tank; 4, coal sample tank is splendid attire coal sample; 5, form is flue gas change in the agent model of observation tunnel; 6, temperature (or pressure) exploration hole measures gas temperature (or pressure) in the agent model of tunnel; 7, gas componant (or pressure) exploration hole derives gas in the agent model of tunnel to carry out analyzing (or measuring gaseous tension in the agent model of tunnel); 8, tunnel agent model.
5. embodiment
Below in conjunction with drawings and Examples, the utility model is further illustrated.
The change of tunnel smoke components and migration rule experimental system when the utility model is spontaneous combustion of simulated coal, this system comprises coal sample heating part, simulation tunnel portion, gas componant measurement section, Temperature measuring section, flue gas migration process observation section.
(1) coal sample loads and heating.Get appropriate coal sample to load in coal sample tank (4), then by screw thread, itself and tunnel agent model (8) are secured together.To heating rod (3) energising, and pass into appropriate air by air admission hole (2) toward coal sample tank (4).
(2) flue gas migration process is observed.To give in coal sample tank in coal sample heating process, can pass through the migration rule of tunnel agent model (8) middle flue gas when form (5) observes the different simulated conditions different coal spontaneous combustion stage.
(3) gas componant is measured.The gas componant exploration hole (7) be located on tunnel agent model (8) is stayed in utilization, the gas collection at agent model (8) diverse location place, tunnel during the coal spontaneous combustion stage different simulated conditions are different by gas collector, mensurated gas composition composition in input gas chromatographicanalyzer.
(4) temperature survey.Temperature sensor is inserted the temperature sensing hole (6) stayed and be located at the upper diverse location place of tunnel agent model (8), the gas temperature of tunnel agent model diverse location when reading different simulated conditions different coal spontaneous combustion stage by connected temperature indicator.
(5) pressure survey.Hose is inserted the pressure exploration hole ((6) and (7)) staying and be located at the upper diverse location place of tunnel agent model (8), then upper U-shaped differential manometer is connected, the pressure change of tunnel agent model (8) diverse location when reading different simulated conditions different coal spontaneous combustion stage.
Claims (8)
1. the change of tunnel smoke components and the experimental system of migration rule during spontaneous combustion of simulated coal, is characterized in that, comprising:
Coal sample heating part, comprises coal sample tank, the heating rod be arranged in described coal sample tank, the gland bonnet being connected to described coal sample tank and the air admission hole be arranged on described gland bonnet; Described heating rod gives coal sample heat temperature raising in described coal sample tank after powered up, produces flue gas during this experimental system spontaneous combustion of simulated coal;
Simulation tunnel portion, comprises tunnel agent model and is arranged at the multiple circular exploration hole on the agent model of described tunnel; Be connected with described coal sample tank bottom the agent model of tunnel;
Gas componant measurement section, for measuring the composition of described flue gas; The gas chromatographicanalyzer comprising gas collector and be connected with described gas collector;
Temperature measuring section, for measuring and read the temperature value of described flue gas; The temperature indicator comprising temperature sensor and be connected with described temperature sensor;
Pressure survey portion, the U-shaped differential manometer comprising hose and be connected with described hose; When entering described tunnel agent model for measuring by the described flue gas produced in described coal sample tank, the pressure changing at agent model diverse location place, described tunnel;
Flue gas migration process observation section, comprises the form being arranged at described tunnel agent model, observes by producing in described coal sample tank and entering the migration rule of the flue gas in the agent model of described tunnel through described form.
2. experimental system according to claim 1, is characterized in that: described coal sample tank is circular fine copper material, leaves the free space of 2cm in lower end, at described tunnel agent model bottom opening, is linked together by screw thread and described coal sample tank top.
3. experimental system according to claim 1, is characterized in that: described gland bonnet is circular copper material, leaves heating rod installing port and described air admission hole, and install O-ring seal additional between coal sample tank in gland bonnet centre position.
4. experimental system according to claim 1, is characterized in that: described tunnel agent model be stainless steel with right angle bend square laneway, at agent model top, tunnel, the circular exploration hole establishing difference in functionality is stayed at diverse location place.
5. experimental system according to claim 1, it is characterized in that: described gas componant measurement section collects flue gas in the agent model of described tunnel by staying the circular exploration hole being located at agent model top, described tunnel, and input gas chromatographicanalyzer analyzes to obtain gas constituents.
6. experimental system according to claim 1, it is characterized in that: temperature sensor stretches in the agent model of described tunnel by staying the circular exploration hole being located at agent model top, described tunnel by described Temperature measuring section, is read the temperature variation of diverse location in the agent model of described tunnel by connected temperature indicator.
7. experimental system according to claim 1, is characterized in that: described pressure survey portion is by the circular exploration hole in the agent model of described tunnel connects the pressure changing that diverse location in the agent model of described tunnel measured by U-shaped differential manometer.
8. experimental system according to claim 1, is characterized in that: described form adopts the square transparent window of resistant to elevated temperatures quartz glass material, and is placed on the side of described tunnel agent model.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201420598090.4U CN204495537U (en) | 2014-10-16 | 2014-10-16 | The change of tunnel smoke components and migration rule experimental system during a kind of spontaneous combustion of simulated coal |
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| CN201420598090.4U CN204495537U (en) | 2014-10-16 | 2014-10-16 | The change of tunnel smoke components and migration rule experimental system during a kind of spontaneous combustion of simulated coal |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107941690A (en) * | 2017-12-20 | 2018-04-20 | 中国矿业大学(北京) | It is a kind of to produce the method and device that CO is tested to coal body for impact grinding effect |
| CN110514551A (en) * | 2019-08-02 | 2019-11-29 | 华北水利水电大学 | A kind of inflammable seam fire extinguishing sprayed on material Performance Measurement System and test method |
| CN114137148A (en) * | 2021-12-01 | 2022-03-04 | 西安科技大学 | Nested open carriage coal spontaneous combustion parameter detection device |
-
2014
- 2014-10-16 CN CN201420598090.4U patent/CN204495537U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107941690A (en) * | 2017-12-20 | 2018-04-20 | 中国矿业大学(北京) | It is a kind of to produce the method and device that CO is tested to coal body for impact grinding effect |
| CN107941690B (en) * | 2017-12-20 | 2023-12-19 | 中国矿业大学(北京) | Method and device for testing CO generated by coal body aiming at impact crushing effect |
| CN110514551A (en) * | 2019-08-02 | 2019-11-29 | 华北水利水电大学 | A kind of inflammable seam fire extinguishing sprayed on material Performance Measurement System and test method |
| CN110514551B (en) * | 2019-08-02 | 2022-03-25 | 安阳工学院 | System and test method for measuring performance of fire-fighting spraying material for flammable coal seam |
| CN114137148A (en) * | 2021-12-01 | 2022-03-04 | 西安科技大学 | Nested open carriage coal spontaneous combustion parameter detection device |
| CN114137148B (en) * | 2021-12-01 | 2023-10-03 | 西安科技大学 | Nested open carriage coal spontaneous combustion parameter detection device |
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| C14 | Grant of patent or utility model | ||
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| 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: 20150722 Termination date: 20161016 |