CN104564158A - Gas early warning device and system - Google Patents
Gas early warning device and system Download PDFInfo
- Publication number
- CN104564158A CN104564158A CN201510023986.9A CN201510023986A CN104564158A CN 104564158 A CN104564158 A CN 104564158A CN 201510023986 A CN201510023986 A CN 201510023986A CN 104564158 A CN104564158 A CN 104564158A
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- CN
- China
- Prior art keywords
- shuttle valve
- valve
- chamber
- housing
- high pressure
- 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.)
- Granted
Links
- 239000003245 coal Substances 0.000 claims abstract description 35
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims description 90
- 239000007789 gas Substances 0.000 claims description 58
- 239000011435 rock Substances 0.000 abstract description 3
- 238000000034 method Methods 0.000 abstract description 2
- 238000012360 testing method Methods 0.000 description 6
- 238000010586 diagram Methods 0.000 description 4
- 238000005065 mining Methods 0.000 description 3
- 238000005553 drilling Methods 0.000 description 2
- 238000012544 monitoring process Methods 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
- E21F17/00—Methods or devices for use in mines or tunnels, not covered elsewhere
- E21F17/18—Special adaptations of signalling or alarm devices
Landscapes
- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Indication Of The Valve Opening Or Closing Status (AREA)
Abstract
The invention provides gas early warning device and system. The gas early warning device comprises a housing, a first end cover, a second end cover, a shuttle valve, a shuttle valve set and a valve switch; when the valve switch is off, high pressure air enters a first cavity through an air inlet hole to apply a first acting force to the shuttle valve as well as enabling the shuttle valve to move in the first direction so as to seal an air outlet hole; when the valve switch is on, high pressure air in the first cavity flows through a channel in the housing to apply a second acting force to the shuttle valve to enable the throttle valve to move in the second direction so as to open the air outlet hole, and therefore; high pressure air in the housing can be exhausted through the air outlet and exploded to generate a pulse signal, and a process can accumulate the volume of gas collected in underground coal and rock of a mine according to the pulse signal. With the adoption of the gas early warning device for early warning the volume of accumulated gas in underground coal and rock of the mine, the early warning is simple, and both time and force can be saved.
Description
Technical field
The embodiment of the present invention relates to technical field of mine safety, particularly relates to a kind of methane prediction Apparatus and system.
Background technology
Along with the increase of China's demand for energy, pit mining intensity and the degree of depth are also in continuous increase, and make gas emission also in continuous increase in high methane enrichment mining area, methane accumulation may cause gas explosion accident, cause large number quipments to damage and casualties.Therefore, be necessary to grasp gas gathering amount in underground coal mine coal petrography in time, exactly.
Due to the increase of the seam mining degree of depth, need to open up darker passage by drilling, coal petrography sample is taken out again by artificial admission passage, again by the gas bearing capacity in gas surveying instrument test sample book, and need at more sampled point test gas bearing capacity, therefore, the method is more loaded down with trivial details, and compares and waste time and energy.
Summary of the invention
The invention provides a kind of methane prediction Apparatus and system, to solve in prior art by the artificial coal seam sample taking out certain depth, again by the gas bearing capacity in gas surveying instrument test sample book, and need at more sampled point test gas bearing capacity, thus cause problem that is more loaded down with trivial details, that waste time and energy.
First aspect of the present invention provides a kind of methane prediction device, comprising: housing, the first end cap, the second end cap, shuttle valve, shuttle valve sleeve and valve switch;
Wherein, described first end cap and described second end cap are fixedly connected on the two ends of described housing respectively;
Described shuttle valve sleeve to be set on described shuttle valve and to be arranged in described housing, the outer wall of described shuttle valve sleeve and the inwall of described housing are fitted, the inner space of described housing is divided into the first chamber and the second chamber by described shuttle valve sleeve, the sidewall of described first chamber is provided with air inlet, the sidewall of described second chamber is provided with steam vent, and described valve switch is arranged in described first chamber;
When described valve switch is closed, gases at high pressure enter described first chamber through described air inlet, described shuttle valve are moved to first direction seal described steam vent to apply the first active force in described shuttle valve;
When described valve switch is opened, the path that gases at high pressure in described first chamber are arranged in described housing applies the second active force to described shuttle valve to be made described shuttle valve move to second direction to open described steam vent, to make the gases at high pressure in described housing discharge and the generation pulse signal that explodes through described steam vent, and processor is made to obtain gas gathering amount in underground coal mine coal petrography according to described pulse signal.
In an embodiment of above-mentioned methane prediction device, alternatively, also comprise:
Elastic parts, described elastic parts is arranged in described second chamber, the impact force that described elastic parts is subject to for reducing described shuttle valve when described shuttle valve moves to described first direction.
In an embodiment of above-mentioned methane prediction device, alternatively, described first end cap and described second end cap are threaded with the two ends of described housing respectively.
In an embodiment of above-mentioned methane prediction device, alternatively, described valve switch is any one in electromagnetic valve, air valve and hydraulic valve.
Second aspect of the present invention provides a kind of methane prediction system, and comprise sensor, processor and the methane prediction device described in above-mentioned any one, described methane prediction device is connected with described sensor, and described sensor is connected with described processor.
Methane prediction Apparatus and system of the present invention, by when valve switch is closed, gases at high pressure enter the first chamber through air inlet, shuttle valve is moved to first direction seal steam vent to apply the first active force in shuttle valve, when valve switch is opened, the path that gases at high pressure in first chamber are arranged in housing applies the second active force to shuttle valve to be made shuttle valve move to second direction to open steam vent, discharge and the generation pulse signal that explodes through steam vent to make the gases at high pressure in housing, and make processor obtain gas gathering amount in underground coal mine coal petrography according to pulse signal, using the methane prediction device that provides of the present embodiment to carry out early warning to gas gathering amount in underground coal mine coal petrography realizes simple and time saving and energy saving.
Accompanying drawing explanation
The structural representation of a kind of methane prediction device that Fig. 1 provides for the embodiment of the present invention;
The operating principle schematic diagram of methane prediction device during the valve switch closedown that Fig. 2 provides for the embodiment of the present invention;
Fig. 3 is the operating principle schematic diagram of methane prediction device when valve switch that the embodiment of the present invention provides is opened;
The structural representation of a kind of methane prediction system 200 that Fig. 4 provides for the embodiment of the present invention.
Detailed description of the invention
The structural representation of a kind of methane prediction device that Fig. 1 provides for the embodiment of the present invention.As shown in Figure 1, the methane prediction device of the present embodiment comprises: housing 1, first end cap 2,
Second end cap 3, shuttle valve 4, shuttle valve sleeve 5 and valve switch 6.
Wherein, the first end cap 2 and the second end cap 3 are fixedly connected on the two ends of housing 1 respectively, and wherein, housing 1 can be made with stainless steel.
Shuttle valve sleeve 5 to be set on shuttle valve 4 and to be arranged in housing 1, the outer wall of shuttle valve sleeve 5 and the inwall of housing 1 are fitted, the inner space of housing 1 is divided into the first chamber 7 and the second chamber 8 by shuttle valve sleeve 5, the sidewall of the first chamber 7 is provided with air inlet 9, the sidewall of the second chamber 8 is provided with steam vent 10, and valve switch 6 is arranged in the first chamber 7.
When valve switch 6 is closed, gases at high pressure enter the first chamber 7 through air inlet 9, shuttle valve 4 are moved to first direction seal steam vent 10 to apply the first active force in shuttle valve 4.
When valve switch 6 is opened, the path that gases at high pressure in first chamber 7 are arranged in housing 1 applies the second active force to shuttle valve 4 to be made shuttle valve 4 move to second direction to open steam vent 10, to make the gases at high pressure in housing 1 discharge and the generation pulse signal that explodes through steam vent 10, and processor is made to obtain gas gathering amount in underground coal mine coal petrography according to pulse signal.
The operating principle schematic diagram of methane prediction device during the valve switch closedown that Fig. 2 provides for the embodiment of the present invention, Fig. 3 is the operating principle schematic diagram of methane prediction device when valve switch that the embodiment of the present invention provides is opened, as shown in Figure 2 and Figure 3, gases at high pressure can from air compressor air storage tank, gases at high pressure can enter the first chamber 7 by air filter, hose coupling through air inlet 9, now valve switch 6 is normally closed, and gases at high pressure can promote shuttle valve 4 and move to first direction and seal steam vent 10.It should be noted that, the direction of shuttle valve 4 movement indicated by arrow as shown in Figure 2 is first direction, is also the air current flow direction of gases at high pressure.Because gases at high pressure can be filled with gases at high pressure through the interstitial hole 12 of shuttle valve 4 from the first chamber 7 in the second chamber 8, when being full of gases at high pressure in the first chamber 7 and the second chamber 8, lifting surface area due to the shuttle valve 4 in the first chamber 7 is far longer than the lifting surface area of shuttle valve 4 in the second chamber 8, and therefore gases at high pressure can promote shuttle valve 8 and move to first direction and seal steam vent 10.
When valve switch 6 is opened, gases at high pressure in first chamber 7 are communicated with path 11, apply the second active force through path 11 to shuttle valve 4 shuttle valve 4 to be moved to second direction open steam vent 10, after steam vent 10 is opened, gases at high pressure in gases at high pressure in second chamber 8 and the first chamber 7 outwards discharge through steam vent 10 simultaneously, gases at high pressure as shown in Figure 3 outwards discharge through steam vent 10, and blast produces pulse signal, and processor is made to obtain gas gathering amount in underground coal mine coal petrography according to pulse signal.It should be noted that, the moving direction of the shuttle valve 4 indicated by arrow as shown in Figure 3 and be second direction in the opposite direction with first party, can to deploy to ensure effective monitoring and control of illegal activities around methane prediction device sensor, pulse signal is sent to processor after getting pulse signal by sensor, obtains gas gathering amount in underground coal mine coal petrography by processor according to pulse signal.
During the methane prediction device using the present embodiment to provide, only need methane prediction device to insert need test in the coal petrography of underground coal mine, pulse signal is produced to its input gases at high pressure blast, namely gas gathering amount in underground coal mine coal petrography can be obtained by processor, therefore without the need to testing gas bearing capacity by manually passing through gas surveying instrument at more sampled point, and methane prediction device placed-depth is also more shallow, also after namely getting out more shallow passage by means of only drilling, methane prediction device is inserted in coal petrography, therefore, fairly simple and time saving and energy saving.
The methane prediction device that the present embodiment provides, by when valve switch 6 is closed, gases at high pressure enter the first chamber 7 through air inlet 9, shuttle valve 4 is moved to first direction seal steam vent 10 to apply the first active force in shuttle valve 4, when valve switch 6 is opened, the path 11 that gases at high pressure in first chamber 7 are arranged in housing 1 applies the second active force to shuttle valve 4 to be made shuttle valve 4 move to second direction to open steam vent 10, discharge and the generation pulse signal that explodes through steam vent 10 to make the gases at high pressure in housing 1, and make processor obtain gas gathering amount in underground coal mine coal petrography according to pulse signal, using the methane prediction device that provides of the present embodiment to carry out early warning to gas gathering amount in underground coal mine coal petrography realizes simple and time saving and energy saving.
Further, also comprise:
Elastic parts, elastic parts is arranged in the second chamber 8, and elastic parts is used for the impact force that minimizing shuttle valve 4 is subject to when shuttle valve 4 moves to first direction.
Further, the first end cap 2 and the second end cap 3 are threaded with the two ends of housing 1 respectively.
Further, valve switch 6 is any one in electromagnetic valve, air valve and hydraulic valve.
The embodiment of the present invention also provides a kind of methane prediction system, as shown in Figure 4, the structural representation of a kind of methane prediction system 200 that Fig. 4 provides for the embodiment of the present invention, methane prediction system comprises the methane prediction device 203 mentioned in sensor 201, processor 202 and above-mentioned any embodiment, methane prediction device 203 is connected with sensor 201, and sensor 201 is connected with processor 202.
The methane prediction system that the present embodiment provides, apply above-mentioned methane prediction device, by when valve switch 6 is closed, gases at high pressure enter the first chamber 7 through air inlet 9, shuttle valve 4 is moved to first direction seal steam vent 10 to apply the first active force in shuttle valve 4, when valve switch 6 is opened, the path 11 that gases at high pressure in first chamber 7 are arranged in housing 1 applies the second active force to shuttle valve 4 to be made shuttle valve 4 move to second direction to open steam vent 10, discharge and the generation pulse signal that explodes through steam vent 10 to make the gases at high pressure in housing 1, and make processor 202 obtain gas gathering amount in underground coal mine coal petrography according to pulse signal.Because gases at high pressure and ambient gas and rock coal occur impact and explode, the gas adhered in coal seam is discharged, and produce vibration to touch the sensor of deploying to ensure effective monitoring and control of illegal activities around methane prediction device, sensor 201 is uploaded to processor 202 pulse signal, obtain gas gathering amount in underground coal mine coal petrography by processor 202 according to pulse signal, the methane prediction system using the present embodiment to provide obtains gas gathering amount and realizes simple and time saving and energy saving.
Last it is noted that above each embodiment is only in order to illustrate technical scheme of the present invention, be not intended to limit; Although with reference to foregoing embodiments to invention has been detailed description, those of ordinary skill in the art is to be understood that: it still can be modified to the technical scheme described in foregoing embodiments, or carries out equivalent replacement to wherein some or all of technical characteristic; And these amendments or replacement, do not make the essence of appropriate technical solution depart from the scope of various embodiments of the present invention technical scheme.
Claims (5)
1. a methane prediction device, is characterized in that, comprising: housing, the first end cap, the second end cap, shuttle valve, shuttle valve sleeve and valve switch;
Wherein, described first end cap and described second end cap are fixedly connected on the two ends of described housing respectively;
Described shuttle valve sleeve to be set on described shuttle valve and to be arranged in described housing, the outer wall of described shuttle valve sleeve and the inwall of described housing are fitted, the inner space of described housing is divided into the first chamber and the second chamber by described shuttle valve sleeve, the sidewall of described first chamber is provided with air inlet, the sidewall of described second chamber is provided with steam vent, and described valve switch is arranged in described first chamber;
When described valve switch is closed, gases at high pressure enter described first chamber through described air inlet, described shuttle valve are moved to first direction seal described steam vent to apply the first active force in described shuttle valve;
When described valve switch is opened, the path that gases at high pressure in described first chamber are arranged in described housing applies the second active force to described shuttle valve to be made described shuttle valve move to second direction to open described steam vent, to make the gases at high pressure in described housing discharge and the generation pulse signal that explodes through described steam vent, and processor is made to obtain gas gathering amount in underground coal mine coal petrography according to described pulse signal.
2. methane prediction device according to claim 1, is characterized in that, also comprise:
Elastic parts, described elastic parts is arranged in described second chamber, the impact force that described elastic parts is subject to for reducing described shuttle valve when described shuttle valve moves to described first direction.
3. methane prediction device according to claim 1, is characterized in that, described first end cap and described second end cap are threaded with the two ends of described housing respectively.
4. the methane prediction device according to any one of claim 1-3, is characterized in that, described valve switch is any one in electromagnetic valve, air valve and hydraulic valve.
5. a methane prediction system, is characterized in that, comprise sensor, processor and the methane prediction device according to any one of Claims 1 to 4, described methane prediction device is connected with described sensor, and described sensor is connected with described processor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510023986.9A CN104564158B (en) | 2015-01-16 | 2015-01-16 | Methane prediction Apparatus and system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510023986.9A CN104564158B (en) | 2015-01-16 | 2015-01-16 | Methane prediction Apparatus and system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104564158A true CN104564158A (en) | 2015-04-29 |
| CN104564158B CN104564158B (en) | 2016-08-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510023986.9A Active CN104564158B (en) | 2015-01-16 | 2015-01-16 | Methane prediction Apparatus and system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104564158B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113982693A (en) * | 2021-11-29 | 2022-01-28 | 平安开诚智能安全装备有限责任公司 | Remote centralized control system for underground air compressor of coal mine |
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| CN101012755A (en) * | 2007-02-11 | 2007-08-08 | 杜志刚 | Equipment for increasing gas exhaustion of coal mine bed by hole drilling |
| CN101776596A (en) * | 2010-02-03 | 2010-07-14 | 中北大学 | Gas density intelligent test system and method |
| CN201857960U (en) * | 2010-10-28 | 2011-06-08 | 煤炭科学研究总院重庆研究院 | Device for directly measuring content of gas |
| CN203531877U (en) * | 2013-10-16 | 2014-04-09 | 山西潞安集团余吾煤业有限责任公司 | Underground coal mine fracturing connecting device |
| CN103806934A (en) * | 2014-02-28 | 2014-05-21 | 山东科技大学 | High-stress low-porosity coal bed presplitting permeability-increase methane drainage system and method |
| CN204419264U (en) * | 2015-01-16 | 2015-06-24 | 平安开诚智能安全装备有限责任公司 | Methane prediction Apparatus and system |
-
2015
- 2015-01-16 CN CN201510023986.9A patent/CN104564158B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CZ14173U1 (en) * | 2004-02-20 | 2004-03-22 | Okdźádpbźáa@Ás | Device for automatic monitoring of gas wells |
| CN101012755A (en) * | 2007-02-11 | 2007-08-08 | 杜志刚 | Equipment for increasing gas exhaustion of coal mine bed by hole drilling |
| CN101776596A (en) * | 2010-02-03 | 2010-07-14 | 中北大学 | Gas density intelligent test system and method |
| CN201857960U (en) * | 2010-10-28 | 2011-06-08 | 煤炭科学研究总院重庆研究院 | Device for directly measuring content of gas |
| CN203531877U (en) * | 2013-10-16 | 2014-04-09 | 山西潞安集团余吾煤业有限责任公司 | Underground coal mine fracturing connecting device |
| CN103806934A (en) * | 2014-02-28 | 2014-05-21 | 山东科技大学 | High-stress low-porosity coal bed presplitting permeability-increase methane drainage system and method |
| CN204419264U (en) * | 2015-01-16 | 2015-06-24 | 平安开诚智能安全装备有限责任公司 | Methane prediction Apparatus and system |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113982693A (en) * | 2021-11-29 | 2022-01-28 | 平安开诚智能安全装备有限责任公司 | Remote centralized control system for underground air compressor of coal mine |
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| Publication number | Publication date |
|---|---|
| CN104564158B (en) | 2016-08-24 |
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