CN207960604U - A kind of one hole multistage gas pressure real-time monitoring device of mine - Google Patents
A kind of one hole multistage gas pressure real-time monitoring device of mine Download PDFInfo
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- CN207960604U CN207960604U CN201820354558.3U CN201820354558U CN207960604U CN 207960604 U CN207960604 U CN 207960604U CN 201820354558 U CN201820354558 U CN 201820354558U CN 207960604 U CN207960604 U CN 207960604U
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Abstract
The utility model provides a kind of one hole multistage gas pressure real-time monitoring device of mine, including steel pipe, distribution is provided at least three gas pressure sensors along its length on the outer wall of steel pipe, two of which gas pressure sensor is respectively arranged at the both ends of steel pipe, tubulose hardness PVC covers are arranged with outside each gas pressure sensor, stomata is offered on tubulose hardness PVC covers, each gas pressure sensor is respectively connected with data line, and data line is extended to the same end of steel pipe by steel duct, it is sealed by sealing device in steel pipe between two neighboring gas pressure sensor, it is arranged with hydraulic sealing device outside steel pipe between two neighboring gas pressure sensor.To solve the problems, such as that existing gas pressure measurement device much cannot be satisfied modern mine safety production requirement.The utility model belongs to coal-bed gas pressure monitoring field.
Description
Technical field
The utility model is related to a kind of gas pressure real-time monitoring devices, belong to coal-bed gas pressure monitoring field.
Background technology
Gas is colourless, tasteless gas, and the relative density to air is 0.554, and gas is close in normal conditions
Degree is 0.716kg/m3, and the penetrating power of gas is 1.6 times of air, is insoluble in water, cannot maintain to breathe, reach a certain concentration
When, it can make one to suffocate because of anoxic.In coal body or country rock, gas is with existing for free state and sorption state.Gas does not help
Combustion, but after it is mixed into a certain concentration with air, meeting fire can burn, explode.It will produce 3 fatal factors when gas explosion：
Explosive flame, explosion wave and toxic and harmful gas.Gas explosion not only causes a large amount of casualties, but also can be serious
It destroys mine facility, interrupt production.Mine gas explosion often causes coal-dust explosion, mine fire, roadway to cave in emit with top plate
Fall equal secondary disasters.Whether Gas Explosion Accidents in Coal Mines is the disaster of most serious in mine accident, so surpassing for gas pressure
Limit, has produced various types of gas pressure measurement devices.But with the fast development of coal production technical merit, coal mine
Production capacity greatly improve, the depth of exploitation also greatly increases, same mine gas occurrence condition also more aobvious complexity, outburst amount
Also it greatly increases, previous gas pressure measurement device much cannot be satisfied the requirement of modern mine safety production.
Invention content
The purpose of this utility model is that：A kind of one hole multistage gas pressure real-time monitoring device of mine is provided, to solve
Existing gas pressure measurement device much cannot be satisfied the problem of modern mine safety production requirement.
To solve the above problems, quasi- use such a one hole multistage gas pressure real-time monitoring device of mine, including steel
It manages, is distributed along its length on the outer wall of steel pipe and is provided at least three gas pressure sensors, two of which gas pressure passes
Sensor is respectively arranged at the both ends of steel pipe, and tubulose hardness PVC covers, tubulose hardness are arranged with outside each gas pressure sensor
Stomata is offered on PVC covers, gas pressure sensor is fixed on by tubulose hardness PVC covers on steel pipe, such as：It can be in steel pipe
Outer wall opens up card slot, and tubulose hardness PVC covers are arranged in card slot, to realize gas pressure sensor and tubulose hardness PVC covers
Fixation, each gas pressure sensor is respectively connected with data line, and data line extends to steel pipe by steel duct
The same end, passes through to be connect with external host etc., in the steel pipe between two neighboring gas pressure sensor and seals dress
Set sealing, i.e., by the sealing device by the steel pipe inner chamber sealed separation between two neighboring gas pressure sensor, adjacent two
It is arranged with hydraulic sealing device outside steel pipe between a gas pressure sensor, since the use of the steel pipe is put it into coal
In the exploration hole that is drilled out of layer, to by the vestibule sealed separation between two neighboring gas pressure sensor.
In aforementioned monitoring device, the sealing device is sealing-plug, and data line passes through sealing-plug and stretches out；
In aforementioned monitoring device, the hydraulic sealing device is hollow elastic sealing ring, i.e., annular sealing of hole capsule, and should
Elastic sealing ring is also associated with water injection pipe, and by water injection pipe, into ring, water filling makes elastic sealing ring expand, thus by steel pipe and brill
It is sealed between hole, by drilling subsection, every section monitors air pressure by a gas pressure sensor；
In aforementioned monitoring device, tubulose hardness PVC covers long 20cm, diameter 20mm, is opened up on the tube wall of tubulose hardness PVC covers
There is fine and closely woven hole, to realize that inner and outer air pressure is identical, while sensor being avoided to be damaged；
In use, be drilled with exploration hole towards coal seam by coal mining, exploration hole aperture 65mm, hole depth 500m, steel pipe is long
501m, caliber 10mm, the gas pressure sensor totally three, first gas pressure sensor is set to the data on steel pipe
Transmission line exit, second gas pressure sensor and first gas pressure sensor are separated by 242.5m, third gas
Pressure sensor is set to away from steel pipe other end 17.5m, and the steel pipe other end extends to the bottom of exploration hole.
Compared with prior art, multiple gas pressure sensors are arranged by being distributed on steel pipe in the utility model, are using
When, only it need to be drilled with exploration hole towards coal seam carry out level by coal mining, then extended to steel pipe in exploration hole, then close to hydraulic pressure
Seal apparatus water-filling makes it that will be sealed between steel pipe and exploration hole, you can the segmented pressure in multistage coal seam is carried out using sensor
Monitoring, monitors seam gas content, guarantee is provided for the safety of pit mining in real time；The utility model operation side
Just, simple in structure, the sealing of hole capsule fabulous, easy to operate using sealing of hole effect is sealed, and monitoring part is reusable；
The data collection of measurement can be got up, the exploitation that mine is measured it after being handled has prodigious referential and practicability；
Pipe range and pressure sensor quantity can be changed with actual needs, solve existing coal-bed gas monitoring device excessively unification,
It is less the real-time monitoring of pressure, monitoring data misregister or be not easy is arranged, the technical problems such as device is not easily recycled.
Description of the drawings
Fig. 1 is cross-sectional view when the utility model uses in exploration hole.
Specific implementation mode
It is new to this practicality below in conjunction with attached drawing to keep the purpose of this utility model, technical solution and advantage clearer
Type is described in further detail, it should be understood that specific embodiment described herein is only to explain the utility model, not
For limiting the utility model.
Embodiment：
Referring to Fig.1, the present embodiment provides a kind of one hole multistage gas pressure real-time monitoring device of mine, including steel pipe 1, steel
Distribution setting along its length is there are three gas pressure sensor 2 on the outer wall of pipe 1,1 long 501m of steel pipe, caliber 10mm, and first
A gas pressure sensor 2 is set to one end of steel pipe 1, and second gas pressure sensor 2 and first gas pressure sense
Device 2 is separated by 242.5m, and third gas pressure sensor 2 is set to away from 1 other end 17.5m of steel pipe, and each gas pressure passes
Tubulose hardness PVC covers 3 are arranged with outside sensor 2, tubulose hardness PVC covers 3 long 20cm, diameter 20mm, and tubulose hardness PVC covers on 3
Fine and closely woven stomata is offered, aperture is less than or equal to 3mm, to realize that inner and outer air pressure is identical, while sensor being avoided to be damaged, gas
Pressure sensor 2 is fixed on by tubulose hardness PVC covers 3 on steel pipe 1, such as：Card slot can be opened up in the outer wall of steel pipe 1, it will
Tubulose hardness PVC covers 3 are arranged in card slot, to realize the fixation of gas pressure sensor 2 and tubulose hardness PVC covers 3, Mei Geqi
Pressure sensor 2 is respectively connected with data line 5, and data line 5 inside steel pipe 1 by extending to the one of aforementioned steel pipe 1
End passes detection signal, the steel between two neighboring gas pressure sensor 2 to be connect with external host etc.
It is sealed by sealing device 4 in pipe 1, i.e., by the sealing device 4 by the steel pipe 1 between two neighboring gas pressure sensor 2
Bore seal separates, and sealing device 4 is sealing-plug, and data line 5 passes through sealing-plug and stretches out, and two neighboring gas pressure passes
It is arranged with hydraulic sealing device 6 outside steel pipe 1 between sensor 2, since the use of the steel pipe 1 is to put it into be drilled out in coal seam
Exploration hole in, to by the vestibule sealed separation between two neighboring gas pressure sensor 2.
Hydraulic sealing device 6 is hollow elastic sealing ring, i.e., annular sealing of hole capsule, sealing of hole capsule is currently used envelope
Hole tool, and the elastic sealing ring is also associated with water injection pipe, water injection pipe also by being drawn in steel pipe 1, is noted by water injection pipe into ring
Water makes elastic sealing ring expand, to be sealed between steel pipe 1 and drilling, then by the water filling seal of tube, and by drilling subsection, every section
Air pressure is monitored by a gas pressure sensor 2；
As requested using drill bit, horizontal drilling operation is carried out from exploitation towards coal seam, gaging hole 7, hole is pried into coal seam
Diameter 65mm, hole depth 500m withdraw from drilling rod after drilling depth reaches the predetermined area, are cleaned to drilling with clear water, then
Sensor is sent into exploration hole 7 using steel pipe 1, i.e., the other end of aforementioned steel pipe 1 is extended to the bottom of exploration hole 7, by host
It is partially disposed on desk, connects the data line 5 of pressure sensor, the injection pressure water into hydraulic sealing device 6, pressure
Power reaches 4MPa or so, and capsule is made to expand, and fills hole, to which exploration hole 7 is divided into several sections, opens host and carries out gas pressure
Power monitors, real time monitoring.
Claims (4)
1. a kind of one hole multistage gas pressure real-time monitoring device of mine, including steel pipe (1), the outer wall upper edge length of steel pipe (1)
Directional spreding is provided at least three gas pressure sensors (2), and two of which gas pressure sensor (2) is respectively arranged at steel
The both ends of (1) are managed, each gas pressure sensor (2) is arranged with tubulose hardness PVC covers (3), tubulose hardness PVC covers (3) outside
On offer stomata, each gas pressure sensor (2) is respectively connected with data line (5), and data line (5) is by steel
The same end of steel pipe (1) is extended to inside pipe (1), passes through sealing in the steel pipe (1) between two neighboring gas pressure sensor (2)
Device (4) seals, and hydraulic sealing device (6) is arranged with outside the steel pipe (1) between two neighboring gas pressure sensor (2).
2. a kind of one hole multistage gas pressure real-time monitoring device of mine according to claim 1, it is characterised in that：It is described close
Seal apparatus (4) is sealing-plug, and data line (5) passes through sealing-plug and stretches out.
3. a kind of one hole multistage gas pressure real-time monitoring device of mine according to claim 1, it is characterised in that：The water
Pressure sealing device (6) is hollow elastic sealing ring, and the elastic sealing ring is also associated with water injection pipe.
4. a kind of one hole multistage gas pressure real-time monitoring device of mine according to claim 1, it is characterised in that：Tubulose is hard
Property PVC cover (3) long 20cm, diameter 20mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820354558.3U CN207960604U (en) | 2018-03-15 | 2018-03-15 | A kind of one hole multistage gas pressure real-time monitoring device of mine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820354558.3U CN207960604U (en) | 2018-03-15 | 2018-03-15 | A kind of one hole multistage gas pressure real-time monitoring device of mine |
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| Publication Number | Publication Date |
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| CN207960604U true CN207960604U (en) | 2018-10-12 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201820354558.3U Active CN207960604U (en) | 2018-03-15 | 2018-03-15 | A kind of one hole multistage gas pressure real-time monitoring device of mine |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108412486A (en) * | 2018-03-15 | 2018-08-17 | 贵州大学 | A kind of one hole multistage gas pressure real-time monitoring device of mine and its installation method |
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2018
- 2018-03-15 CN CN201820354558.3U patent/CN207960604U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108412486A (en) * | 2018-03-15 | 2018-08-17 | 贵州大学 | A kind of one hole multistage gas pressure real-time monitoring device of mine and its installation method |
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