CN106285626B - Gas emission initial velocity measuring device - Google Patents
Gas emission initial velocity measuring device Download PDFInfo
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- CN106285626B CN106285626B CN201610676142.9A CN201610676142A CN106285626B CN 106285626 B CN106285626 B CN 106285626B CN 201610676142 A CN201610676142 A CN 201610676142A CN 106285626 B CN106285626 B CN 106285626B
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- grouting
- inflation
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- 238000007789 sealing Methods 0.000 claims abstract description 60
- 230000005540 biological transmission Effects 0.000 claims abstract description 28
- 238000005553 drilling Methods 0.000 claims abstract description 6
- 238000000034 method Methods 0.000 claims abstract description 6
- 230000000149 penetrating effect Effects 0.000 claims abstract description 4
- 239000002775 capsule Substances 0.000 claims description 43
- 238000012545 processing Methods 0.000 claims description 23
- 239000004570 mortar (masonry) Substances 0.000 claims description 6
- 238000004891 communication Methods 0.000 claims description 5
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 claims description 3
- 229910052744 lithium Inorganic materials 0.000 claims description 3
- 230000008054 signal transmission Effects 0.000 claims description 2
- 238000005259 measurement Methods 0.000 abstract description 15
- 238000012986 modification Methods 0.000 abstract description 7
- 230000004048 modification Effects 0.000 abstract description 7
- 238000007639 printing Methods 0.000 abstract description 3
- 239000003245 coal Substances 0.000 description 5
- 238000007569 slipcasting Methods 0.000 description 4
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000010276 construction Methods 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000004973 liquid crystal related substance Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
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Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B47/00—Survey of boreholes or wells
-
- G—PHYSICS
- G08—SIGNALLING
- G08C—TRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILAR SIGNALS
- G08C17/00—Arrangements for transmitting signals characterised by the use of a wireless electrical link
- G08C17/02—Arrangements for transmitting signals characterised by the use of a wireless electrical link using a radio link
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- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Geology (AREA)
- General Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- Geophysics (AREA)
- Computer Networks & Wireless Communication (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Arrangements For Transmission Of Measured Signals (AREA)
- Measuring Fluid Pressure (AREA)
Abstract
The invention discloses a device for measuring the initial velocity of gas emission, which comprises a hole packer for sealing and drilling a hole to form a gas chamber, a measuring pipe penetrating through the hole packer and extending to the gas chamber, and a data acquisition instrument arranged on the measuring pipe; the data acquisition instrument comprises a wireless data transmission module for wirelessly transmitting acquired data to an external terminal; according to the device for measuring the initial gas emission speed, the wireless data transmission module is implanted into the data acquisition instrument, so that wireless transmission can be realized, manual on-site recording is not needed, the measurement efficiency can be improved, complicated data line connection in the data reading and printing processes is avoided, the wireless data transmission module can be wirelessly connected with an external terminal, and data transmission, sharing and searching are facilitated; the automatic recording mode effectively avoids potential manual modification and human errors, and improves the reliability of the measurement result.
Description
Technical Field
The invention relates to a flow velocity measuring device, in particular to a gas emission initial velocity measuring device.
Background
Coal and gas outburst is one of the main disasters seriously threatening the safety production of coal mines; for decades, China has made a great deal of and highly effective research on the anti-outburst medicine, and a set of 'four-in-one' comprehensive anti-outburst system is formed; the initial gas emission speed is an important index for predicting the outburst risk of coal and gas or testing the effect of outburst prevention measures; the initial velocity of gas emission from a drilled hole is generally measured by feeding a hole packer into a position at a suitable distance from the front of the drilled hole within a predetermined time after drilling of the coal seam is completed, sealing the drilled hole to form a gas chamber, and measuring the maximum emission amount of the gas chamber having a specific length. The existing gas emission initial velocity measuring device comprises a hole packer, a measuring pipe which penetrates through the hole packer and extends to a gas chamber, and a data acquisition instrument which is arranged on the measuring pipe, wherein the data acquisition instrument acquires flow data and displays the flow data, the flow data is manually recorded on the spot, the measuring efficiency is low, the data is not convenient to transmit, share and look up, the possibility of artificial modification and artificial error exists, and the reliability of a measuring result is low.
Therefore, in order to solve the above problems, it is necessary to improve the existing gas emission initial velocity measuring apparatus, so as to improve the measuring efficiency, facilitate the transmission, sharing and lookup of data, effectively avoid human modification and human error, and improve the reliability of the measuring result.
Disclosure of Invention
In view of the above, the present invention provides a device for measuring an initial velocity of a gas emission, which can improve measurement efficiency, facilitate data transmission, sharing and lookup, effectively avoid human modification and human error, and improve reliability of a measurement result.
The invention relates to a gas emission initial velocity measuring device, which comprises a hole packer used for sealing a drilled hole to form a gas chamber, a measuring pipe penetrating through the hole packer and extending to the gas chamber, and a data acquisition instrument arranged on the measuring pipe; the data acquisition instrument comprises a wireless data transmission module for wirelessly transmitting acquired data to an external terminal.
Further, the data acquisition instrument still includes processing controller, is used for surveying the pressure sensor who surveys buret air current pressure in the survey in real time and is used for the power for each power consumption part power supply, wireless data transmission module, pressure sensor and power all link to each other with processing controller, the pressure signal transmission that pressure sensor gathered to processing controller and handle by processing controller and transmit to external terminal through wireless data transmission module after for speed signal.
Furthermore, the measuring pipe is provided with a throttling pipe section, the outlet end of the throttling pipe section is connected with a nozzle, and the pressure sensor is arranged in the throttling pipe section.
Furthermore, the data acquisition instrument also comprises a display, and the input end of the display is connected with the output end of the processing controller.
Further, the data acquisition instrument further comprises an indicator light, and the indicator light is connected with the processing controller.
Furthermore, the wireless data transmission module adopts a Bluetooth communication module.
Further, the processing controller is of a single chip microcomputer structure; the power supply adopts an explosion-proof lithium battery.
Further, the hole sealing device comprises a first hole sealing capsule and a second hole sealing capsule which are sequentially arranged along the drilling direction, and a grouting gap is formed between the first hole sealing capsule and the second hole sealing capsule; the measuring device further comprises an inflating assembly used for inflating the first hole sealing capsule and the second hole sealing capsule and a grouting assembly used for filling sealing mortar into the grouting gap.
Further, the inflation assembly comprises an inflation tube, a gas pressure transmitter and a pressure gauge; one end of the inflation tube penetrates through the first hole sealing capsule and then extends into the second hole sealing capsule, the other end of the inflation tube is connected with the gas pressure feeder, and the pressure gauge is arranged on the inflation tube and detects the air pressure value in the inflation tube in real time; the part of the inflation tube, which is positioned in the first hole sealing capsule, is provided with a first inflation hole, and the part of the inflation tube, which is positioned in the second hole sealing capsule, is provided with a second inflation hole.
Further, the slip casting subassembly includes slip casting pipe and grouting pump, the one end of slip casting pipe is passed and is extended in the slip casting clearance behind the first hole sealing capsule, and the other end links to each other with the grouting pump.
The invention has the beneficial effects that: according to the device for measuring the initial gas emission speed, the wireless data transmission module is implanted into the data acquisition instrument, so that wireless transmission can be realized, manual on-site recording is not needed, the measurement efficiency can be improved, complicated data line connection in the data reading and printing processes is avoided, the wireless data transmission module can be wirelessly connected with an external terminal, and data transmission, sharing and searching are facilitated; the automatic recording mode effectively avoids potential manual modification and human errors, and improves the reliability of the measurement result.
Drawings
The invention is further described below with reference to the following figures and examples:
FIG. 1 is a schematic structural view of the present invention;
fig. 2 is a schematic view of the communication principle of the data acquisition instrument of the present invention.
Detailed Description
Fig. 1 is a schematic structural diagram of the present invention, and fig. 2 is a simplified communication principle diagram of the data acquisition instrument of the present invention, as shown in the figure: the gas emission initial velocity measuring device of the embodiment comprises a hole packer 1 for sealing a drill hole 9 to form a gas chamber 9a, a measuring pipe 2 penetrating through the hole packer 1 and extending to the gas chamber 9a, and a data acquisition instrument 3 arranged on the measuring pipe 2; the data acquisition instrument 3 comprises a wireless data transmission module 31 for wirelessly transmitting acquired data to the external terminal 8; when the method is used, a drill hole 9 with the depth and the size meeting the requirements is drilled in a coal seam by adopting a conventional method, the hole packer 1 is connected with the measuring pipe 2, the hole packer 1 is conveyed into a preset position of the drill hole 9 and seals the drill hole 9, a gas chamber 9a is formed between the bottom of the drill hole 9 and the hole packer 1 at the moment, the measuring pipe 2 is connected with the data acquisition instrument 3, and the gas data of the drill hole 9 at different times can be measured by the data acquisition instrument 3; because the wireless data transmission module 31 is implanted in the data acquisition instrument 3, wireless transmission can be realized, manual on-site recording is not needed, the measurement efficiency can be improved, complicated data line connection in the data reading and printing processes is avoided, the wireless data transmission module 31 can be wirelessly connected with the external terminal 8, and data transmission, sharing and lookup are facilitated; the automatic recording mode effectively avoids potential manual modification and human errors, and improves the reliability of the measurement result.
In this embodiment, the data acquisition instrument 3 further includes a processing controller 32, a pressure sensor 33 for detecting the pressure of the airflow in the measurement tube 2 in real time, and a power supply 34 for supplying power to each electric component, the wireless data transmission module 31, the pressure sensor 33, and the power supply 34 are all connected to the processing controller 32, and a pressure signal acquired by the pressure sensor 33 is transmitted to the processing controller 32, processed into a speed signal by the processing controller 32, and then transmitted to the external terminal 8 through the wireless data transmission module 31; in the determination, the accurate measurement of the gas flow rate is very important, but if the existing flowmeter is directly adopted, the flowmeter can interfere the fluid form during measurement, the measurement error is large, and a measurement dead zone exists; the data acquisition instrument 3 of the device acquires pressure signals through the pressure sensor 33 and converts the pressure signals into flow velocity signals through a corresponding data processing algorithm in the processing controller 32, and the device has the advantages of simple structure, low cost, convenient use and high measurement precision; the processing controller 32 is a single chip microcomputer structure, for example, an AT89S51 single chip microcomputer, and realizes encoding of binary signals; the power supply 34 can adopt an explosion-proof lithium battery, so that the safety coefficient is high, and effective power supply is realized; the wireless data transmission module 31 can adopt a Bluetooth communication module, and has strong anti-interference capability, good confidentiality and low power consumption; in addition, the data acquisition instrument 3 may further include a display 35 and an indicator light 36, wherein an input end of the display 35 is connected to an output end of the processing controller 32, and the indicator light 36 is connected to the processing controller 32; the display 35 is a liquid crystal display screen which displays the measurement result in real time, and the indicator light 36 is an LED light which respectively corresponds to the display states of different parameters; all the components of the data acquisition instrument 3 can be integrally designed on a shell, so that the portable data acquisition instrument is convenient to carry and simple and convenient to operate; the shell can be also provided with related keys, and the keys can be operated to transmit the measured process data and results to other receiving ends through the wireless data transmission module 31.
In this embodiment, the measuring tube 2 is provided with a throttle section 2a, an outlet end of the throttle section 2a is connected with the nozzle 5, and the pressure sensor 33 is arranged in the throttle section 2 a; the measuring tube 2 is preferably made of a flexible tube (such as a rubber tube), can be coiled up when not being measured and is convenient to carry, and can be directly loosened when being used and sent to a preset position of a drill hole 9, so that the pipeline connection time can be saved, and meanwhile, the adaptability to nonlinear drill holes is strong; the throttle pipe section 2a is separable from or integral with the measuring pipe 2; the throttling element is arranged in the throttling pipe section 2a, so that the pressure of gas can be reduced, and because differential pressure is generated in front of and behind the throttling element, the corresponding differential pressure can be measured through the pressure sensor 33, so that the purpose of measuring flow is achieved, and the measuring accuracy can be effectively improved; the throttle pipe sections 2a are fitted with respective nozzles 5.
In this embodiment, the hole sealing device includes a first hole sealing capsule 11 and a second hole sealing capsule 12 sequentially arranged along the direction of the borehole 9, and a grouting gap 9b is formed between the first hole sealing capsule 11 and the second hole sealing capsule 12; the measuring device also comprises an inflation component for inflating the first sealing capsule 11 and the second sealing capsule 12 and a grouting component for pouring sealing mortar into the grouting gap 9 b; the hole sealing capsules (comprising the first hole sealing capsules 11 and the second hole sealing capsules 12) can be matched with the drill holes 9 through expansion, so that the hole sealing capsules adapt to the rugged structure of the drill holes 9 and achieve a sealing effect; the sealing performance can be improved by adopting a structure that the front and the rear hole sealing capsules are matched; in addition, through pouring the sealing mortar between two hole sealing capsules, the sealing mortar fills up the grouting clearance 9b and the rugged part between the hole sealing capsules and the hole wall of the drill hole 9, so that effective sealing can be realized, the grouting area can be limited, and the operation in actual construction is facilitated.
In this embodiment, the inflation assembly includes an inflation tube 41, a gas pressure transmitter 42 and a pressure gauge 43; one end of the inflation tube 41 penetrates through the first hole sealing capsule 11 and then extends into the second hole sealing capsule 12, the other end of the inflation tube is connected with the gas pressure transmitter 42, and the pressure gauge 43 is arranged on the inflation tube 41 and detects the air pressure value in the inflation tube 41 in real time; a first inflation hole (not shown in the figure) is formed in the part, located in the first hole sealing capsule 11, of the inflation pipe 41, and a second inflation hole (not shown in the figure) is formed in the part, located in the second hole sealing capsule 12, of the inflation pipe; the inflation tube 41 is preferably a flexible tube, and has strong adaptability to nonlinear drilling; the gas pressure transmitter 42 can be of an electronic type or a manual driving type, and is convenient to carry; the pressure gauge 43 is convenient for monitoring the state of the hole packer 1; the structure can quickly and effectively seal the drill hole 9, and the measuring efficiency is improved; the front end and the rear end of the first hole sealing capsule 11 and the second hole sealing capsule 12 are respectively provided with a corresponding quick pipe joint so as to facilitate the connection of related pipelines and prevent the air leakage phenomenon of the hole sealing capsules; the first inflation hole and the second inflation hole can be connected with an upper air valve.
In this embodiment, the grouting assembly includes a grouting pipe 61 and a grouting pump 62, one end of the grouting pipe 61 extends into the grouting gap 9b after passing through the first hole sealing capsule 11, and the other end is connected with the grouting pump 62; the grouting pipe 62 is preferably a flexible pipe, and has strong adaptability to nonlinear drilling; the grouting pump 62 pours the sealing mortar into the grouting gap 9b through the grouting pipe 61, and the grouting pump is simple in structure, easy to realize and beneficial to improving the determination efficiency.
Finally, the above embodiments are only for illustrating the technical solutions of the present invention and not for limiting, although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications or equivalent substitutions may be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all of them should be covered in the claims of the present invention.
Claims (6)
1. A gas emission initial velocity measuring device comprises a hole packer used for sealing a drilled hole to form a gas chamber, a measuring pipe penetrating through the hole packer and extending to the gas chamber, and a data acquisition instrument arranged on the measuring pipe; the method is characterized in that: the data acquisition instrument comprises a wireless data transmission module for wirelessly transmitting acquired data to an external terminal;
the hole sealing device comprises a first hole sealing capsule and a second hole sealing capsule which are sequentially arranged along the drilling direction, and a grouting gap is formed between the first hole sealing capsule and the second hole sealing capsule; the measuring device also comprises an inflation assembly for inflating the first hole sealing capsule and the second hole sealing capsule and a grouting assembly for filling sealing mortar into the grouting gap;
the inflation assembly comprises an inflation tube, a gas pressure transmitter and a pressure gauge; one end of the inflation tube penetrates through the first hole sealing capsule and then extends into the second hole sealing capsule, the other end of the inflation tube is connected with the gas pressure feeder, and the pressure gauge is arranged on the inflation tube and detects the air pressure value in the inflation tube in real time; a first inflation hole is formed in the part, positioned in the first hole sealing capsule, of the inflation pipe, and a second inflation hole is formed in the part, positioned in the second hole sealing capsule, of the inflation pipe; the grouting assembly comprises a grouting pipe and a grouting pump, one end of the grouting pipe penetrates through the first hole sealing capsule and then extends into the grouting gap, and the other end of the grouting pipe is connected with the grouting pump; the data acquisition instrument still includes processing controller, is used for surveying the pressure sensor who surveys buret air current pressure in the survey in real time and is used for the power for each power consumption part power supply, wireless data transmission module, pressure sensor and power all link to each other with processing controller, the pressure signal transmission that pressure sensor gathered transmits to processing controller and is handled by processing controller and transmits to external terminal through wireless data transmission module after being speed signal.
2. The device for measuring initial velocity of gas emission according to claim 1, wherein: the measuring pipe is provided with a throttling pipe section, the outlet end of the throttling pipe section is connected with a nozzle, and the pressure sensor is arranged in the throttling pipe section.
3. The device for measuring initial velocity of gas emission according to claim 2, wherein: the data acquisition instrument further comprises a display, and the input end of the display is connected with the output end of the processing controller.
4. The device for measuring initial velocity of gas emission according to claim 3, wherein: the data acquisition instrument further comprises an indicator light, and the indicator light is connected with the processing controller.
5. The device for measuring initial velocity of gas emission according to claim 1, wherein: the wireless data transmission module adopts a Bluetooth communication module.
6. The device for measuring initial velocity of gas emission according to claim 1, wherein: the processing controller is of a single chip microcomputer structure; the power supply adopts an explosion-proof lithium battery.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610676142.9A CN106285626B (en) | 2016-08-16 | 2016-08-16 | Gas emission initial velocity measuring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610676142.9A CN106285626B (en) | 2016-08-16 | 2016-08-16 | Gas emission initial velocity measuring device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106285626A CN106285626A (en) | 2017-01-04 |
| CN106285626B true CN106285626B (en) | 2020-02-11 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201610676142.9A Active CN106285626B (en) | 2016-08-16 | 2016-08-16 | Gas emission initial velocity measuring device |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114608637A (en) * | 2022-02-10 | 2022-06-10 | 浙江探芯科技有限公司 | Data receiving equipment, system and method for detecting capsule |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102121376B (en) * | 2010-01-11 | 2013-11-27 | 河南理工大学 | Intelligent coal seam gas pressure tester |
| CN201687464U (en) * | 2010-06-02 | 2010-12-29 | 平顶山市碧源科技有限公司 | Drilling gas inrush initial velocity measurement device |
| CN203644127U (en) * | 2013-11-14 | 2014-06-11 | 西安上尚机电有限公司 | Mechanical structure of pipeline card metering switch |
| CN204827340U (en) * | 2015-06-15 | 2015-12-02 | 华北科技学院 | Novel capsule hole packer |
| CN105735967B (en) * | 2016-04-12 | 2018-09-21 | 中国矿业大学 | Method for measuring initial velocity of gas emission in drill hole |
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