CN108798649A - It is a kind of for spontaneous combustionof coal temperature sensing with boring temperature measuring equipment - Google Patents
It is a kind of for spontaneous combustionof coal temperature sensing with boring temperature measuring equipment Download PDFInfo
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- CN108798649A CN108798649A CN201810347533.5A CN201810347533A CN108798649A CN 108798649 A CN108798649 A CN 108798649A CN 201810347533 A CN201810347533 A CN 201810347533A CN 108798649 A CN108798649 A CN 108798649A
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- signal
- measuring equipment
- signal wire
- center steering
- temperature
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- 239000003245 coal Substances 0.000 title claims abstract description 30
- 230000002269 spontaneous effect Effects 0.000 title claims abstract description 22
- 238000005553 drilling Methods 0.000 claims abstract description 39
- 230000008054 signal transmission Effects 0.000 claims abstract description 15
- 238000004891 communication Methods 0.000 claims abstract description 10
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 23
- 239000012212 insulator Substances 0.000 claims description 9
- 238000009434 installation Methods 0.000 claims description 7
- 238000007667 floating Methods 0.000 claims description 4
- 230000001681 protective effect Effects 0.000 claims description 3
- 239000011347 resin Substances 0.000 claims description 3
- 229920005989 resin Polymers 0.000 claims description 3
- 238000002485 combustion reaction Methods 0.000 description 7
- 238000000034 method Methods 0.000 description 7
- 238000001514 detection method Methods 0.000 description 6
- 238000010586 diagram Methods 0.000 description 5
- 239000013307 optical fiber Substances 0.000 description 4
- 241001074085 Scophthalmus aquosus Species 0.000 description 3
- 230000008901 benefit Effects 0.000 description 3
- 238000009529 body temperature measurement Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000012544 monitoring process Methods 0.000 description 3
- 230000002265 prevention Effects 0.000 description 3
- 230000007812 deficiency Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000004861 thermometry Methods 0.000 description 2
- 239000004677 Nylon Substances 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 238000004079 fireproofing Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229920001778 nylon Polymers 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 238000004321 preservation Methods 0.000 description 1
- 230000003449 preventive effect Effects 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 239000000523 sample Substances 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
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
- E21B47/06—Measuring temperature or pressure
- E21B47/07—Temperature
-
- 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
- E21B47/12—Means for transmitting measuring-signals or control signals from the well to the surface, or from the surface to the well, e.g. for logging while drilling
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Geophysics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Remote Sensing (AREA)
- Arrangements For Transmission Of Measured Signals (AREA)
Abstract
It is a kind of to be mounted on center steering cavity by positioning sleeve for spontaneous combustionof coal temperature sensing with temperature measuring equipment, including center steering cavity and signal transmission module, signal transmission module is bored；Signal transmission module includes signal wire, signal output end, communication cable, display, signal wire, temperature sensor and signal reception and wireless launcher, temperature sensor is mounted in drill bit, signal receives and wireless launcher connects temperature sensor by signal wire and is mounted on the outside of the afterbody drilling rod farthest from drill bit, signal output end connects display by communication cable outward, signal output end center is equipped with conductive bar, conductive bar front end is equipped with conductive hemisphere, conductive hemisphere is contacted with conducting ring, signal wire is placed in the center steering cavity and drilling rod of connection, one end connects conducting ring inner ring, the other end is connect with temperature sensor.The present invention can monitor the real time temperature in drilling.
Description
Technical field
The present invention relates to a kind of for spontaneous combustionof coal temperature sensing with temperature measuring equipment is bored, and belongs to spontaneous combustionof coal temperature sensing
Device.
Background technology
In underground coal mine, coal spontaneous combustion be influence one of the disaster of working face safety coal extraction, and wherein goaf be coal from
Fire the region that takes place frequently.Since goaf is in enclosure space, its inner space temperature everywhere can not be measured in real time, at present execute-in-place
When mostly use detection of gas method inverting goaf coal spontaneous combustion degree, and corresponding fire hazard treating measure is taken based on inversion result.
But when using this method, distinguished and admirable by underground coal mine, adopt and geology preservation is influenced, once detect significant gas
Body then loses coal and has had been introduced into self-combustible stage, cannot play preventive effect in advance, directly increases the general of fire generation
Rate improves the input of fire hazard treating.
To solve the above-mentioned problems, the temperature conditions that easy fire location can be monitored in advance, it is presently contemplated that using light
The direct temperature measurements such as fine thermometry, Thermocouples Technology and infrared detection technique.However light thermometry is in advance to goaf
Or easily fire area is laid with optical fiber, goaf temperature real-time measurement is carried out using optical time domain reflection technology, since optical fiber is general
Be laid on seat earth, collapsed by roof and mine water is influenced, this method often occur optical fiber pounded it is disconnected, optical fiber or
The problems such as temperature-sensing probe is impregnated；In addition this method needs pre-buried, and for region that is no pre-buried and having caught fire, it can not survey
Measure its internal temperature.And if by stretching into thermocouple temperature measurement in the borehole, although the temperature of space on fire can be measured sometimes
Degree, but its is complicated for operation, and influenced by drilling country rock situation and goaf Heat Conduction in Porous Media difference, accuracy and sensitivity
Property is poor.Finally, infrared detection technique is only applicable to the obvious region thermometric of skin temperature variation, is not suitable for mined out under mine
The detection of area or Abandoned Tunnel regional temperature.
It is known disclose it is a kind of for coal mine gob temperature sensing with thermometric drilling tool is bored, be to become head and brill in water
The thermometric valve block being arranged between bar, it includes center steering cavity and signal transmission feedback element, and the connecting pin that water becomes head is inserted into
The pipe fitting of center steering cavity one end, the center steering cavity other end are connect with drilling rod；It is fixed that signal transmission feedback element passes through
Position set is fitted on center steering cavity, and is equipped at intervals with conduction in the cavity between positioning sleeve and center steering cavity
Ring；Signal transmission feedback element includes signal wire I, signal wire II, signal input part and signal output end, signal wire I, signal wire
II connects together temperature sensing cable and signal input part and signal output end.The present invention is easy to operate, can not only search coverage
Profiling temperatures, temperature of the drilling along journey can also be measured when drilling rod deeply drills, to accurately detecting coal mine
Lower goaf and other fire area temperature reduce the probability of fire generation to be conducive to carry out prevention work in advance.
It is above-mentioned with bore thermometric drilling tool principle be：Thermometric valve block is connected to drilling machine water to become between head and drilling rod, in the phase of drilling
Between, continue to thermometric valve block input electrical signal from outside by signal input part, electric signal is through signal wire I, temperature sensing cable, signal
Line II reaches signal output end, and when temperature is more than the set temperature of temperature sensing cable, short circuit occurs for temperature sensing cable, and short-circuit signal is logical
It crosses signal output end and can export to coupled warning piece and send out warning.The different monitoring points of same working region and
The temperature sensing cable of different detection temperature is replaced in same monitoring point can monitor the temperature of a wide range of working region, and multiple measuring points can
To constitute temperature net, to instruct the fire such as goaf to prevent.Its existing deficiency is：What the temperature of temperature sensing cable was to determine,
After temperature reaches temperature sensing cable set temperature, temperature sensing cable fuses automatically, can not continue thermometric, that is, belongs to disposable thermometric,
And result of detection can only indicate that measured temperature is more than temperature sensing cable set temperature, but can not determine accurate temperature value.Therefore, nothing
Method realizes continuous temperature measurement.
Invention content
For overcome the deficiencies in the prior art, the present invention provide it is a kind of for spontaneous combustionof coal temperature sensing with boring thermometric dress
It sets, the real time temperature in drilling can be monitored, measured temperature is more acurrate, stable, rapid and continuous.
The present invention solve its technical problem the technical solution adopted is that：It is described between water supply installation and drilling rod
Include center steering cavity and signal transmission module with temperature measuring equipment is bored, during signal transmission module is fitted to by positioning sleeve
The heart turns round on cavity, and a pair of of floating bearing, and positioning sleeve and center steering cavity are equipped between center steering cavity and positioning sleeve
Between cavity in be equipped at intervals with conducting ring, conducting ring is sleeved on center steering cavity, and conducting ring inner ring diameter be more than center
The external loop diameter of turned cavities, insulator is filled between conducting ring and center steering cavity；The signal transmission module includes letter
Number line, signal output end, communication cable, display, signal wire, temperature sensor and signal receive and wireless launcher, temperature
Spend sensor be mounted on drill bit in, signal receive and wireless launcher by signal wire connect temperature sensor and mounted on from
The outside of the farthest level-one drilling rod of drill bit, signal output end connect display by communication cable outward, and signal output end correspondence is led
The position of electric ring is radially inserted through positioning sleeve from outside, and signal output end center is equipped with conductive bar, conductive bar front end
Equipped with conductive hemisphere, conductive hemisphere front end face is contacted with the annular outer surface of conducting ring, and signal wire is placed in the center steering of connection
In cavity and drilling rod, and signal wire one end passes through center steering cavity wall and is fixed on conducting ring inner ring, the other end and drill bit
Internal temperature sensor output end connection.
Compared with prior art, it is of the invention it is a kind of for spontaneous combustionof coal temperature sensing with boring temperature measuring equipment, it is drill-through applying
Sensor signal is reached conducting ring, conducting ring passes through conduction by Cheng Zhong by the temperature sensor of drill bit internal by signal wire
Hemisphere, conductive bar, communication cable are delivered to display, realize the monitoring of real time temperature；After applying brill, further through last
Attached signal reception and wireless launcher, connect with signal wire, obtain sensor signal, and by the signal with nothing outside grade drilling rod
Line mode is sent to receiving device, receiving device displays temperature situation of change；Above rotary drill process and after the temperature surveyed
Degree is more acurrate, stable, rapid and continuous.The present invention be directed to the temperature sensing equipment that underground coal mine coal spontaneous combustion prevention proposes.
Solves the root problem of coal spontaneous combustion prevention, i.e. temperature positions.Once coal spontaneous combustion danger zone is accurately positioned, then can grasp comprehensively
The processes such as development, the variation of coal spontaneous combustion danger zone, accurately instruct coal spontaneous combustion to prevent, meanwhile, avoid fireproofing extinguishing materials selection
Problem.Therefore, the advantages such as which has application prospect high, and potential economic benefit is big.
Description of the drawings
Present invention will be further explained below with reference to the attached drawings and examples.
Fig. 1 is the application schematic diagram of one embodiment of the invention.
Fig. 2 is one embodiment of the invention with the structural schematic diagram for boring temperature measuring equipment.
Fig. 3 is the structural schematic diagram of afterbody drilling rod in Fig. 2.
Fig. 4 is the installation diagram of signal wire in drilling rod in Fig. 2.
Fig. 5 is the structural schematic diagram of fixing sleeve in Fig. 4.
In figure：1, drilling machine, 2, water feeder, 3, high-pressure water pipe, 4, drilling rod, 4-1, afterbody drilling rod, 5, drill bit, 6, fixed
Set, 6-1, ring, 6-2, strut, 6-3, outer circle, 7, with boring temperature measuring equipment, 10, center steering cavity, 20, floating bearing, 30,
Positioning sleeve, 40, resin, 50, insulator, 60, conducting ring, 70, signal output end, 71, conductive bar, 72, spring, 73, conductive half
Ball, 80, signal wire, 81, signal wire connection socket, 82, protective case, 90, communication cable, 100, display, 110, temperature sensing
Device, 120, signal reception and wireless launcher.
Specific implementation mode
In order to make the object, technical scheme and advantages of the embodiment of the invention clearer, below in conjunction with the embodiment of the present invention
In attached drawing, technical scheme in the embodiment of the invention is clearly and completely described, it is clear that described embodiment is
A part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, ordinary skill people
The every other embodiment that member is obtained without making creative work, belongs to protection scope of the present invention.
As shown in Figure 1, it is a kind of for spontaneous combustionof coal temperature sensing with temperature measuring equipment is bored, be mounted on temperature measuring equipment 7 is bored
Between water supply installation and drilling rod 4, the water supply installation includes water feeder 2 and high-pressure water pipe 3, and 3 one end of high-pressure water pipe connects water
Source, the other end connect water feeder 2, and drilling machine 1 and drilling rod 4 are coaxial and be separately mounted to water feeder 2 and with the side for boring temperature measuring equipment 7,
The front end of drilling rod 4 is connected with drill bit 5.
In the embodiment shown in Figure 2, described to include center steering cavity 10 and signal transmission mould with brill temperature measuring equipment 7
Block, signal transmission module are fitted to by positioning sleeve 30 on center steering cavity 10, center steering cavity 10 and positioning sleeve
It is equipped with a pair of of floating bearing 20 between 30, and conducting ring is equipped at intervals in the cavity between positioning sleeve 30 and center steering cavity 10
60, conducting ring 60 is sleeved on center steering cavity 10, and the inner ring diameter of conducting ring 60 is more than the outer ring of center steering cavity 10
Diameter, fills insulator 50 between conducting ring 60 and center steering cavity 10, the material of insulator 50 is chosen as insulated nylon；Institute
The signal transmission module stated includes signal wire 80, signal output end 70, communication cable 90, display 100, signal wire 80, temperature
Sensor 110 and signal reception and wireless launcher 120, temperature sensor 110 are mounted in drill bit 5, temperature sensor 110
It is preferably installed through on 5 axial line of drill bit, signal receives and wireless launcher 120 connects temperature by signal wire 80 and passes
Sensor 110 and the outside (participating in Fig. 3) for being mounted on the afterbody drilling rod 4-1 farthest from drill bit 5, signal output end 70 is logical outward
It crosses communication cable 90 and connects display 100, the position that signal output end 70 corresponds to conducting ring 60 is radially inserted into and is worn from outside
Positioning sleeve 30 is crossed, and 70 center of signal output end is equipped with conductive bar 71,71 front end of conductive bar is equipped with conductive hemisphere 73, conductive hemisphere
73 front end faces are contacted with the annular outer surface of conducting ring 60, and signal wire 80 is placed in the center steering cavity 10 and drilling rod 4 of connection,
And 80 one end of signal wire passes through 10 side wall of center steering cavity and is fixed on 60 inner ring of conducting ring, inside the other end and drill bit 5
110 output end of temperature sensor connects.
As shown in Figure 4 and Figure 5, the signal wire 80 is supported in by fixing sleeve 6 in 4 hollow cavity of drilling rod, outside fixing sleeve 6
Portion is the outer circle 6-3 mutually fitted with 4 internal diameter of drilling rod, and 6 inside center of fixing sleeve has the ring 6-1, ring 6-1 that signal wire 80 passes through
It is connect by strut 6-2 between outer circle 6-3.The firm and extension of 80 installation site of signal wire, working performance can be improved
Service life.
Preferably, in order to ensure that conductive hemisphere 73 can be contacted with 60 outer ring of conducting ring with all-the-time stable, prolong the service life,
Spring 72 is cased in the conductive bar 71, and conductive hemisphere 73 is withstood in 72 one end of spring, the other end is located at signal output end 70
On inner wall.For better protection signal line 80, the signal wire 80 and insulator 50, center steering cavity 10 and insulator 50
Between surrounding be filled with resin 40；Meanwhile being located at the part in 4 hollow cavity of drilling rod in signal wire 80 and being cladded with protective case 82, root
According to the needs of length, more signal wires 80 can be connected by signal wire connection socket 81.
The above is only presently preferred embodiments of the present invention, not does limitation in any form to the present invention, it is every according to
According to the technical spirit of the present invention, any simple modification and same variation are made to above example, each fall within the guarantor of the present invention
Within the scope of shield.
Claims (7)
1. it is a kind of for spontaneous combustionof coal temperature sensing with temperature measuring equipment is bored, be mounted between water supply installation and drilling rod (4), it is special
Sign is：Described includes that center steering cavity (10) and signal transmission module, signal transmission module pass through with temperature measuring equipment (7) is bored
Positioning sleeve (30) is fitted on center steering cavity (10), and one is equipped between center steering cavity (10) and positioning sleeve (30)
To floating bearing (20), and conducting ring (60) is equipped at intervals in the cavity between positioning sleeve (30) and center steering cavity (10),
Conducting ring (60) is sleeved on center steering cavity (10), and the inner ring diameter of conducting ring (60) is more than center steering cavity (10)
Race diameter fills insulator (50) between conducting ring (60) and center steering cavity (10)；
The signal transmission module include signal wire (80), signal output end (70), communication cable (90), display (100),
Signal wire (80), temperature sensor (110) and signal receive and wireless launcher (120), temperature sensor (110) are mounted on
In drill bit (5), signal receives and wireless launcher (120) connects temperature sensor (110) by signal wire (80) and installs
In the outside of the afterbody drilling rod (4-1) farthest from drill bit (5), signal output end (70) is connected by communication cable (90) outward
Display (100) is connect, the position of the corresponding conducting ring (60) of signal output end (70) is radially inserted through positioning sleeve from outside
(30), and signal output end (70) center is equipped with conductive bar (71), and conductive bar (71) front end is equipped with conductive hemisphere (73), conduction half
Ball (73) front end face is contacted with the annular outer surface of conducting ring (60), and signal wire (80) is placed in the center steering cavity (10) of connection
In drilling rod (4), and signal wire (80) one end passes through center steering cavity (10) side wall and is fixed on conducting ring (60) inner ring, separately
One end temperature sensor (110) output end internal with drill bit (5) is connect.
2. it is according to claim 1 it is a kind of for spontaneous combustionof coal temperature sensing with boring temperature measuring equipment, it is characterized in that：It is described
Water supply installation include water feeder (2) and high-pressure water pipe (3), high-pressure water pipe (3) one end connects water source, and the other end connects water feeder
(2), drilling machine (1) and drilling rod (4) are coaxial and are separately mounted to water feeder (2) and with the side for boring temperature measuring equipment (7).
3. it is according to claim 1 or 2 it is a kind of for spontaneous combustionof coal temperature sensing with boring temperature measuring equipment, it is characterized in that：
The temperature sensor (110) is installed through on drill bit (5) axial line.
4. it is according to claim 1 or 2 it is a kind of for spontaneous combustionof coal temperature sensing with boring temperature measuring equipment, it is characterized in that：
Surrounding is filled with resin between the signal wire (80) and insulator (50), center steering cavity (10) and insulator (50)
(40)。
5. it is according to claim 1 or 2 it is a kind of for spontaneous combustionof coal temperature sensing with boring temperature measuring equipment, it is characterized in that：
The signal wire (80) is supported in by fixing sleeve (6) in drilling rod (4) hollow cavity, and the outside of fixing sleeve (6) is interior with drilling rod (4)
The outer circle (6-3) that diameter is mutually fitted, fixing sleeve (6) inside center have the ring (6-1) that passes through of signal wire (80), ring (6-1) with
It is connected by strut (6-2) between outer circle (6-3).
6. it is according to claim 5 it is a kind of for spontaneous combustionof coal temperature sensing with boring temperature measuring equipment, it is characterized in that：It is described
The part that signal wire (80) is located in drilling rod (4) hollow cavity is cladded with protective case (82).
7. it is according to claim 1 or 2 it is a kind of for spontaneous combustionof coal temperature sensing with boring temperature measuring equipment, it is characterized in that：
Spring (72) is also cased in the conductive bar (71), conductive hemisphere (73) is withstood in spring (72) one end, and the other end is located at signal
On the inner wall of output end (70).
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810347533.5A CN108798649B (en) | 2018-04-18 | 2018-04-18 | While-drilling temperature measuring device for coal spontaneous combustion temperature detection |
| PCT/CN2018/104642 WO2019200821A1 (en) | 2018-04-18 | 2018-09-07 | Temperature measuring-while-drilling apparatus for detecting autoignition temperature of coal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810347533.5A CN108798649B (en) | 2018-04-18 | 2018-04-18 | While-drilling temperature measuring device for coal spontaneous combustion temperature detection |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108798649A true CN108798649A (en) | 2018-11-13 |
| CN108798649B CN108798649B (en) | 2022-02-11 |
Family
ID=64094371
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810347533.5A Active CN108798649B (en) | 2018-04-18 | 2018-04-18 | While-drilling temperature measuring device for coal spontaneous combustion temperature detection |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN108798649B (en) |
| WO (1) | WO2019200821A1 (en) |
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| CN109681195A (en) * | 2019-02-25 | 2019-04-26 | 中国矿业大学(北京) | A kind of down-hole drilling is interior along journey temperature infrared test device and method |
| CN110792432A (en) * | 2019-08-27 | 2020-02-14 | 河南理工大学 | Temperature detection system and method for drilling bit of gas-containing coal layer |
| CN110888149A (en) * | 2019-11-04 | 2020-03-17 | 西安科技大学 | Coal seam fire positioning system and positioning method |
| CN111187634A (en) * | 2019-11-24 | 2020-05-22 | 石晶 | Intelligent forming, stacking and coking production method |
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