CN216811638U - Device for eliminating triangular area of gas extraction drilling hole sealing and multi-parameter monitoring - Google Patents
Device for eliminating triangular area of gas extraction drilling hole sealing and multi-parameter monitoring Download PDFInfo
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- CN216811638U CN216811638U CN202122263211.2U CN202122263211U CN216811638U CN 216811638 U CN216811638 U CN 216811638U CN 202122263211 U CN202122263211 U CN 202122263211U CN 216811638 U CN216811638 U CN 216811638U
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Abstract
The utility model relates to the technical field of intelligent comprehensive measurement of coal bed parameters, in particular to a device for eliminating a 'triangular region' of a gas extraction drilling hole sealing hole and monitoring multiple parameters, which comprises a perforated pipe, wherein a hole sealing pipe is connected and arranged at the end of a perforated pipe clamping groove, a tail joint is connected and arranged at the end of the perforated pipe clamping groove, and a data acquisition head is arranged at the end of the tail joint clamping groove; the monitoring device can ensure that the situations of slurry leakage and slurry leakage can not occur during grouting.
Description
Technical Field
The utility model relates to the technical field of intelligent comprehensive measurement of coal seam parameters, in particular to a device for eliminating a triangular area of a gas extraction drilling hole sealing hole and monitoring multiple parameters.
Background
With the increase of coal mining depth and intensity, coal mine safe and efficient production faces greater threat, existing theoretical research and a large number of practices show that under the influence of multiple factors such as geological structure and gas occurrence conditions, serious accidents caused by coal and gas outburst and gas explosion occur frequently, coal mine safe and efficient production is severely restricted, coal seam parameter measurement is a pioneer for gas control, and parameter measurement results of the coal seam parameter measurement become a key link for coal mine gas disaster control. However, there are many problems in gas parameter measurement and coal seam gas extraction: firstly, a conventional 'two-plugging one-grouting' hole sealing pressure measuring device externally cuts a grouting pipe and a reverse grouting pipe from a four-iron-dividing pipe or a PVC pipe, so that a 'triangular area' which cannot be completely filled exists between bags after grouting, the conditions of slurry leakage and leakage occur between 2 bags in a hole sealing grouting stage, the grouting pressure is reduced, and meanwhile, slurry cannot effectively permeate into deep cracks of surrounding rock of a drill hole, so that the hole sealing effect is influenced; secondly, the whole process is finished by manual operation by adopting a traditional method, so that the test workload is large, the timeliness is poor, the error is large, the recorded pressure value is only a sampling value in a certain observation period, and continuous dynamic monitoring cannot be realized; and thirdly, the traditional method is adopted to seal holes, which is influenced by multiple mining induced stress fields, so that a large number of joints and cracks with dynamic changes are generated, the extraction rate of the drilled gas is low, the extraction concentration is quickly attenuated, and the extraction effect does not reach the standard.
Therefore, the conventional parameter measuring means cannot accurately and quickly master the monitoring value at present, and the safety of underground engineering and constructors is more difficult to ensure.
Disclosure of Invention
The utility model aims to provide a device for eliminating a triangular area of a gas extraction drilling hole sealing and multi-parameter monitoring, so as to overcome the defects of the prior art.
In order to achieve the purpose, the utility model provides the following technical scheme:
the device for eliminating the triangular area of gas extraction drilling hole sealing and multi-parameter monitoring comprises a perforated pipe, wherein a hole sealing pipe is connected to the end of a perforated pipe clamping groove, a tail joint is connected to the end of the perforated pipe clamping groove, and a data acquisition head is arranged at the end of the tail joint clamping groove.
As a further scheme of the utility model: the pipe body of the perforated pipe is uniformly provided with air holes.
As a further scheme of the utility model: the hole sealing pipe comprises a hole sealing pipe I and a hole sealing pipe II, an extension pipe can be arranged between the hole sealing pipe I and the hole sealing pipe II, and the I lock catch end of the hole sealing pipe is directly connected with the clamping groove end of the perforated pipe.
As a further scheme of the utility model: tail-nipple, hole sealing pipe I, hole sealing pipe II and extension pipe have the looks isostructure, all are provided with the trachea that link up promptly in its inside, are provided with the slip casting pipe on trachea upside, are provided with anti-thick liquid pipe at the trachea downside.
As a further scheme of the utility model: the front end and the rear end of the perforated pipe, the tail joint, the hole sealing pipe I, the hole sealing pipe II and the extension pipe adopt the same connecting structure, namely, the tenon-and-mortise structures with round tables and prismoid shapes are arranged at the ends of the two ends of the perforated pipe, and the structure is matched with the lock catch and the lock catch matched with the clamping groove structure, so that the perforated pipe, the tail joint, the hole sealing pipe I, the hole sealing pipe II and the extension pipe are fixedly connected with each other, and the perforated pipe, the grouting pipe and the anti-grouting pipe are communicated with each other in the structure.
As a further scheme of the utility model: the grouting pipe and the anti-grouting pipe in the hole sealing pipe I are of a non-through structure, the end part of the locking side of the grouting pipe of the hole sealing pipe I is provided with a grouting pipe outlet, the middle part of the grouting pipe of the hole sealing pipe I is provided with a blasting valve, the end part of the right side of the anti-grouting pipe of the hole sealing pipe I is provided with an anti-grouting port, and the outlet of the grouting pipe is provided with a bag I and the bag I is wrapped around the hole sealing pipe I.
As a further scheme of the utility model: the grouting pipe and the anti-grouting pipe in the hole sealing pipe II and the extension pipe are of a through structure, a grouting pipe opening is formed in the middle of the grouting pipe of the hole sealing pipe II, and a hole sealing pipe II which is provided with a bag II and is wrapped by the bag II is arranged at the opening of the grouting pipe.
As a further scheme of the utility model: 16 pneumatic pipes are arranged at the inlets of a grouting pipe and a reverse grouting pipe in the tail connector, a grouting pipe valve is arranged in the grouting pipe in the grouting device, a reverse grouting pipe valve is arranged in the reverse grouting pipe in the grouting device, an air pipe valve is arranged in the middle of an air pipe in the grouting device, and an internal thread structure is arranged on the left side of the air pipe.
As a further scheme of the utility model: the data acquisition head is including the tubular structure that is located the middle part, it realizes being connected with the tail-end joint cooperation to set up external screw thread structure at tubular structure right side end, copper ring has set gradually from the right side to left side in tubular structure, pressure sensor, the solenoid valve, flow sensor, temperature sensor and methane/carbon dioxide concentration sensor, above-mentioned copper ring, pressure sensor, the solenoid valve, flow sensor, temperature sensor and methane/carbon dioxide concentration sensor pass through the wire and communicate in the singlechip, be provided with the fast interface of data transmission on the singlechip, it realizes supplying power to the singlechip to set up the fast interface of power input in singlechip one side.
Compared with the prior art, the utility model has the beneficial effects that: the monitoring device is simple in structure and easy to operate, reduces the labor cost and errors caused by reading, and can provide accurate real-time data for coal mine safety production; the monitoring device can ensure that the situations of slurry leakage and slurry leakage can not occur during grouting.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic structural view of a floral tube of the present invention;
FIG. 3 is a schematic structural diagram of a hole sealing pipe I according to the present invention;
FIG. 4 is a schematic view of an extension tube according to the present invention;
FIG. 5 is a right side view of FIG. 4;
FIG. 6 is a right side view of the middle section of FIG. 4;
FIG. 7 is a schematic structural view of a hole sealing pipe II according to the present invention;
FIG. 8 is a schematic structural view of a tail joint according to the present invention;
FIG. 9 is a schematic view of a data acquisition head according to the present invention.
In the figure: air hole (1), perforated pipe (2), bag I (3), grouting pipe outlet (4), lock catch (5), blast valve (6), anti-grout hole (7), hole sealing pipe I (8), grouting pipe (9), anti-grout pipe (10), air pipe (11), gasket (12), extension pipe (13), bag II (14), grouting pipe opening (15), hole sealing pipe II (16), grouting pipe valve (17), air pipe valve (18), screw thread (19), tail connector (20), anti-grout pipe valve (21), 16 pneumatic pipe (22), data acquisition head (23), pressure sensor (24), copper ring (25), electromagnetic valve (26), methane/carbon dioxide concentration sensor (27), temperature sensor (28), flow sensor (29), single-chip microcomputer (30), data transmission fast plug port (31), power input fast plug port (32), and drilling (33).
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention.
Referring to fig. 1-9, the technical solution of the present invention: the utility model provides an eliminate device of gas drainage drilling hole sealing "triangular space" and multi-parameter monitoring, includes floral tube 2, its characterized in that: the left end of the perforated pipe 2 is connected with a hole sealing pipe, the left end of the hole sealing pipe is connected with a tail joint 20, and the left end of the tail joint 20 is provided with a data acquisition head 23.
The air holes 1 are uniformly distributed on the pipe body of the perforated pipe 2, the hole sealing pipe comprises a hole sealing pipe I8 and a hole sealing pipe II 16, an extension pipe 13 can be arranged between the hole sealing pipe I8 and the hole sealing pipe II 16, the right end of the hole sealing pipe I8 is directly connected with the clamping groove end of the perforated pipe 2, the tail joint 20, the hole sealing pipe I8, the hole sealing pipe II 16 and the extension pipe 13 have the same structure, namely a through air pipe 11 is arranged in the hole sealing pipe I8, a grouting pipe 9 is arranged on the upper side of the air pipe 11, a back grouting pipe 10 is arranged on the lower side of the air pipe 11, the clamping grooves and the locking ends of the perforated pipe 2, the tail joint 20, the hole sealing pipe I8, the hole sealing pipe II 16 and the extension pipe 13 adopt the same connecting structure, namely, the two end ends adopt tenon and mortise structures provided with round tables and frustum shapes, and the locking groove structures matched with the locking grooves 5 and the locking structures matched with the locking grooves 5, so as to be connected and fixed with each other, and the air pipe 11 and the air pipe in the structure, The grouting pipe 9 and the anti-grouting pipe 10 are communicated with each other, the grouting pipe 9 and the anti-grouting pipe 10 in the hole sealing pipe I8 are of a non-through structure, a grouting pipe outlet 4 is arranged at the lock catch side end part of the grouting pipe 9 of the hole sealing pipe I8, a blasting valve 6 is arranged in the middle of the grouting pipe 9 of the hole sealing pipe I8, an anti-grouting port 7 is arranged at the right side end part of the anti-grouting pipe 10 of the hole sealing pipe I8, a bag I3 is arranged at the position of the grouting pipe outlet 4, the bag I3 surrounds the hole sealing pipe I8, the grouting pipe 9 and the anti-grouting pipe 10 in the hole sealing pipe II 16 and the extension pipe 13 are of a through structure, a grouting pipe opening 15 is arranged in the middle of the grouting pipe 9 of the hole sealing pipe II 16, and a bag II 14 is arranged at the grouting pipe opening 15, and the bag II 14 surrounds the hole sealing pipe II 16.
16 pneumatic pipes 22 are arranged at the inlets of the grouting pipe 9 and the backscattering pipe 10 in the tail joint 20, a grouting pipe valve 17 is arranged in the grouting pipe 9 in the grouting device, a backscattering pipe valve 21 is arranged in the backscattering pipe 10 in the grouting device, an air pipe valve 18 is arranged in the middle of an air pipe in the grouting device, and an internal thread structure is arranged on the left side of the air pipe.
The data acquisition head 23 comprises a tubular structure located in the middle, an external thread structure is arranged at the right end of the tubular structure to realize matching connection with the tail joint 20, a copper ring 25 is sequentially arranged in the tubular structure from right to left, a pressure sensor 24, an electromagnetic valve 26, a flow sensor 29, a temperature sensor 28 and a methane/carbon dioxide concentration sensor 27 are arranged in the tubular structure, the copper ring 25, the pressure sensor 24, the electromagnetic valve 26, the flow sensor 29, the temperature sensor 28 and the methane/carbon dioxide concentration sensor 27 are communicated with a single chip microcomputer 30 through wires, a data transmission quick-plugging port 31 is arranged on the single chip microcomputer 30, and a power input quick-plugging port 32 is arranged on one side of the single chip microcomputer 30 to realize power supply to the single chip microcomputer 30. Details not described in the present specification are prior art to the present invention which is well known to those skilled in the art to which the present invention pertains.
In specific use
The embodiment of the utility model mainly comprises an air hole 1, a perforated pipe 2, a bag I3, a grouting pipe outlet 4, a lock catch 5, a blasting valve 6, a back-grouting opening 7, a hole sealing pipe I8, a grouting pipe 9, a back-grouting pipe 10, an air pipe 11, a gasket 12, an extension pipe 13, a bag II 14, a grouting pipe opening 15, a hole sealing pipe II 16, a grouting pipe valve 17, an air pipe valve 18, a thread 19, a tail connector 20, a back-grouting pipe valve 21, a back-grouting pipe pneumatic pipe 22, a data acquisition head 23, a pressure sensor 24, a copper ring 25, an electromagnetic valve 26, a methane/carbon dioxide concentration sensor 27, a temperature sensor 28, a flow sensor 29, a single chip microcomputer 30, a data transmission quick-inserting port 31 and a power input quick-inserting port 32, wherein the perforated pipe 2, the hole sealing pipe I8, the extension pipe 13, the hole sealing pipe II 16 and the tail connector 20 are connected through the lock catch 5, the compacted gasket 12 achieves the sealing effect, the slurry is prevented from leaking in the grouting process and the air tightness in the later extraction process is guaranteed, the tail connector 20 and the data acquisition head 23 are connected in a thread 19 mode, the connection is that a raw rubber belt is wound on the outer threads to prevent air leakage, if extraction is only carried out, the data acquisition head 23 does not need to be installed, and the mine extraction pipe network is connected in a lock catch 5 mode.
The device of the comprehensive device for measuring the coal bed gas parameters for the mine can detect the coal bed gas pressure, the gas attenuation coefficient and the extraction radius. The device is characterized in that a grouting pipe and a slurry return pipe are arranged in an air pipe, so that the formation of the 'triangular area' is completely avoided, the hole sealing effect is improved, the extraction drilling parameters are detected in real time through a collecting head sensor and a single chip microcomputer, and the remote adjustment can be realized.
The mining pressure sensor 24, the methane/carbon dioxide concentration sensor 27, the temperature sensor 28 and the flow sensor 29 are connected with the single chip microcomputer 30 through leads, and are used for respectively collecting gas pressure or extraction negative pressure, methane concentration, carbon dioxide concentration, gas temperature, gas flow or extraction mixing amount. The data is processed by the singlechip 30 and transmitted to the network system of the coal mine through the data transmission quick-plug interface 31.
The electromagnetic valve 26 is controlled by signals transmitted from the copper ring 25 and the central control room through the data transmission quick-plug interface 31. When water is produced from the coal seam during testing or extraction, the copper ring 25 is conducted to form a passage, the single chip microcomputer 30 feeds back a signal to the central control room, the central control room does not give an instruction after the set time, and the single chip microcomputer 30 controls the electromagnetic valve 26 to be closed; when the test item is changed, the central control room sends a signal to control the opening/closing of the electromagnetic valve 26.
The grouting pipe 9, the grout reversing pipe 10 and the air pipe 11 are made of pressure-resistant materials, the perforated pipe 2, the hole sealing pipe I8, the extension pipe 13, the hole sealing pipe II 16 and the tail connector 20 are connected through lock catches, a fool-proof socket is designed at the tail of the pipe, and a gasket is arranged to guarantee air leakage/grout leakage/water leakage in the pipe. The bursting valve 6 in the pipeline of the grout reversing pipe 10 is burst after being subjected to specific pressure (the normal pressure is 1.5MPa, and the bursting valve can be replaced according to actual requirements), and the grout flows out of the bursting valve 6, fills the gap between the first bag 3 and the second bag 14, passes through the drilling hole 33 and then flows into the grout reversing pipe 10 through the grout reversing port 7.
The data acquisition head 23 is connected with the tail connector 20 in a threaded mode, and the data acquisition head 23 can be connected with a mine drainage pipeline in a locking and buckling mode.
A device for eliminating a triangular area of gas extraction drilling and sealing and multi-parameter monitoring comprises the following steps:
a. and drilling a drill hole meeting the experimental conditions in the coal body on one side of the roadway close to the working surface, and ensuring that the drill hole does not contain free water and is straight without hole collapse.
b. And calculating the length of the lower pipe according to the drilling parameter test requirement.
c. Checking whether the pipeline is defective or not, and connecting the pipeline according to requirements.
d. Connecting a tail joint, determining that the three valves are in an open state, connecting a tail joint grouting pipe with a grouting pump, selecting a proper grouting material according to requirements for grouting, closing the valve of the reverse grouting pipe after the reverse grouting pipe reverses the grout, continuing grouting, observing a pressure gauge of the grouting pump, and closing the grouting machine and closing the valve of the grouting pipe when the grout pressure of the two bags reaches the design requirements.
e. Before installing the data acquisition head, it is necessary to ensure that no water is accumulated in the trachea, and the data cable is connected to connect the power supply to ensure the normal operation of the equipment.
f. And the central console opens or closes the electromagnetic valve according to the requirement, and stores and summarizes the data.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.
Claims (9)
1. The utility model provides an eliminate device of gas drainage drilling hole sealing "triangular space" and multi-parameter monitoring, includes floral tube (2), its characterized in that: the end of the clamping groove of the perforated pipe (2) is connected with a hole sealing pipe, the end of the clamping groove of the hole sealing pipe is connected with a tail joint (20), and the threaded end of the tail joint (20) is provided with a data acquisition head (23).
2. The device for eliminating the triangular area and the multi-parameter monitoring of the gas extraction borehole sealing according to claim 1, is characterized in that: the pipe body of the perforated pipe (2) is uniformly provided with air holes (1).
3. The device for eliminating the triangular area and the multi-parameter monitoring of the gas extraction borehole sealing according to claim 1, is characterized in that: the hole sealing pipe comprises a hole sealing pipe I (8) and a hole sealing pipe II (16), an extension pipe (13) can be arranged between the hole sealing pipe I (8) and the hole sealing pipe II (16), and the lock catch end of the hole sealing pipe I (8) is directly connected with the clamping groove end of the perforated pipe (2).
4. The device for eliminating the triangular area of the gas extraction drilled hole sealing and the multi-parameter monitoring as claimed in any one of claims 1, 2 or 3, wherein: the tail joint (20), the hole sealing pipe I (8), the hole sealing pipe II (16) and the extension pipe (13) have the same structure, namely, a through air pipe (11) is arranged in the hole sealing pipe I, a grouting pipe (9) is arranged on the upper side of the air pipe (11), and a grout returning pipe (10) is arranged on the lower side of the air pipe (11).
5. The device for eliminating the triangular area and the multi-parameter monitoring in the hole sealing of the gas extraction drill hole according to claim 4, is characterized in that: the front end and the rear end of the perforated pipe (2), the tail connector (20), the hole sealing pipe I (8), the hole sealing pipe II (16) and the extension pipe (13) adopt the same connecting structure, namely, the tenon-and-mortise structure with the circular truncated cone and the frustum of a prism is arranged at the ends of the two ends of the perforated pipe, and the matched lock catch (5) and the matched clamping groove structure of the lock catch (5) are matched, so that the perforated pipe is fixedly connected with each other, and the perforated pipe (11), the grouting pipe (9) and the grout reflection pipe (10) are communicated with each other in the structure.
6. The device for eliminating the triangular area and the multi-parameter monitoring in the hole sealing of the gas extraction drill hole according to claim 4, is characterized in that: slip casting pipe (9) and anti-slip casting pipe (10) in hole sealing pipe I (8) are non-through structure, slip casting pipe export (4) are set up in slip casting pipe (9) right side tip of hole sealing pipe I (8), slip casting pipe (9) middle part at hole sealing pipe I (8) sets up blast valve (6), anti-slip casting pipe (10) hasp tip at hole sealing pipe I (8) sets up anti-grout mouth (7), wherein be provided with bag I (3) and this bag I (3) ring parcel hole sealing pipe I (8) of this department in slip casting pipe export (4).
7. The device for eliminating the triangular area and the multi-parameter monitoring in the hole sealing of the gas extraction drill hole according to claim 4, is characterized in that: the grouting pipe (9) and the anti-grouting pipe (10) in the hole sealing pipe II (16) and the extension pipe (13) are of a through structure, wherein a grouting pipe opening (15) is formed in the middle of the grouting pipe (9) of the hole sealing pipe II (16), a bag II (14) is arranged at the outlet of the grouting pipe opening (15), and the bag II (14) is wrapped around the hole sealing pipe II (16).
8. The device for eliminating the triangular area and the multi-parameter monitoring in the hole sealing of the gas extraction drill hole according to claim 4, is characterized in that: the pneumatic grouting device is characterized in that 16 pneumatic pipes (22) are arranged at inlets of a grouting pipe (9) and a reverse grouting pipe (10) in the tail joint (20), a grouting pipe valve (17) is arranged in the grouting pipe (9) in the grouting device, a reverse grouting pipe valve (21) is arranged in the reverse grouting pipe (10) in the grouting device, an air pipe valve (18) is arranged in the middle of an air pipe in the grouting device, and an internal thread structure is arranged on the side of an air pipe clamping groove.
9. The device for eliminating the triangular area and the multi-parameter monitoring of the gas extraction borehole sealing according to claim 1, is characterized in that: data acquisition head (23) are including the tubular structure that is located the middle part, set up the external screw thread structure at tubular structure right side end and realize being connected with end-piece (20) cooperation, copper ring (25) have set gradually from right side to left side in tubular structure, pressure sensor (24), solenoid valve (26), flow sensor (29), temperature sensor (28) and methane/carbon dioxide concentration sensor (27), above-mentioned copper ring (25), pressure sensor (24), solenoid valve (26), flow sensor (29), temperature sensor (28) and methane/carbon dioxide concentration sensor (27) communicate in singlechip (30) through the wire, be provided with data transmission fast interface (31) on singlechip (30), set up power input fast interface (32) in singlechip (30) one side and realize supplying power to singlechip (30).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122263211.2U CN216811638U (en) | 2021-09-17 | 2021-09-17 | Device for eliminating triangular area of gas extraction drilling hole sealing and multi-parameter monitoring |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122263211.2U CN216811638U (en) | 2021-09-17 | 2021-09-17 | Device for eliminating triangular area of gas extraction drilling hole sealing and multi-parameter monitoring |
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| Publication Number | Publication Date |
|---|---|
| CN216811638U true CN216811638U (en) | 2022-06-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122263211.2U Active CN216811638U (en) | 2021-09-17 | 2021-09-17 | Device for eliminating triangular area of gas extraction drilling hole sealing and multi-parameter monitoring |
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| Country | Link |
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| CN (1) | CN216811638U (en) |
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2021
- 2021-09-17 CN CN202122263211.2U patent/CN216811638U/en active Active
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