CN207212328U - For coal mine gob temperature sensing with brill thermometric drilling tool - Google Patents
For coal mine gob temperature sensing with brill thermometric drilling tool Download PDFInfo
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- CN207212328U CN207212328U CN201721156673.1U CN201721156673U CN207212328U CN 207212328 U CN207212328 U CN 207212328U CN 201721156673 U CN201721156673 U CN 201721156673U CN 207212328 U CN207212328 U CN 207212328U
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- drilling rod
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Abstract
It is a kind of for coal mine gob temperature sensing with boring thermometric drilling tool, the temperature measuring valve block that water becomes between head and drilling rod includes center steering cavity and signal transmission feedback element, water becomes the pipe joint of connection end insertion center steering cavity one end of head, and the center steering cavity other end is connected with drilling rod；Signal transmits feedback element and coordinated by positioning sleeve on center steering cavity, and is interval with conducting ring in the cavity between positioning sleeve and center steering cavity；Signal transmission feedback element includes signal wire I, signal wire II, signal input part and signal output part, and signal wire I, signal wire II connect together temperature sensing cable and signal input part and signal output part.The utility model is easy to operate, it is capable of the profiling temperatures of search coverage, temperature of the drilling along journey can also be measured when drilling rod deeply drills, so as to detects coal mine gob and other fire area temperature exactly, be advantageous to carry out prevention work in advance, reduce the probability of fire generation.
Description
Technical field
The utility model is related to a kind of drilling tool, it is specifically a kind of for coal mine gob temperature sensing with boring thermometric
Drilling tool, belong to underground coal mine detection device.
Background technology
In underground coal mine, coal spontaneous combustion is to influence one of disaster of working face safety coal extraction, and wherein goaf be coal from
Fire the region that takes place frequently.Because goaf is in closing space, its inner space temperature everywhere can not be measured in real time, at present execute-in-place
When use detection of gas method inverting goaf coal spontaneous combustion degree more, and corresponding fire hazard treating measure is taken based on inversion result.
But when in this way, by underground coal mine it is distinguished and admirable, adopt and geology preservation is influenceed, once detect significant gas
Body, then lose coal and had been introduced into self-combustible stage, it is impossible to play preventive effect in advance, directly increase the general of fire generation
Rate, improve the input of fire hazard treating.
It is such in order to solve the problems, such as, the temperature conditions of easy fire location can be monitored in advance, it is presently contemplated that using
The direct temperature measurements such as Fiber Optic Pyrometer, Thermocouples Technology and infrared detection technique.But light thermometry is in advance to mined out
Area or easy fire area laying optical fiber, carry out goaf temperature real-time measurement, due to optical fiber one using optical time domain reflection technology
As be laid on seat earth, collapsed by roof and mine water influenceed, this method optical fiber often occurs and pounded disconnected, optical fiber
Or temperature-sensing probe the problems such as being soaked；In addition this method needs pre-buried, and for region that is no pre-buried and having caught fire, can not
Measure its internal temperature.And if by stretching into thermocouple temperature measurement in the borehole, although space on fire can be measured sometimes
Temperature, but its complex operation, and influenceed by drilling country rock situation and goaf Heat Conduction in Porous Media difference, accuracy and quick
Perception is poor.Finally, infrared detection technique is only applicable to the obvious region thermometric of skin temperature change, is not suitable for adopting under mine
Dead zone or the detection of Abandoned Tunnel regional temperature.
The content of the invention
In view of the above-mentioned problems of the prior art, the purpose of this utility model is to provide, a kind of to be used for underground coal mine mined out
Area's temperature sensing with thermometric drilling tool is bored, the temperature and its changing rule of goaf danger zone can be real-time monitored, with profit
In carrying out prevention work in advance, it is further able to reduce fire hazard treating input, improves field work safe and economy.
To achieve the above object, the technical solution adopted in the utility model is：One kind is used for coal mine gob temperature
Detection becomes head and drilling rod with brill thermometric drilling tool, including water, and the water, which becomes between head and drilling rod, is provided with temperature measuring valve block, temperature measuring valve block
Including center steering cavity and signal transmission feedback element, the water becomes the pipe of connection end insertion center steering cavity one end of head
Joint, the male connection of the center steering cavity other end and the female adapter of drilling rod are connected；
The signal transmission feedback element is coordinated by positioning sleeve to be arranged on center steering cavity, the center steering chamber
A pair of floating bearings are provided between body and positioning sleeve, and conduction is interval with the cavity between positioning sleeve and center steering cavity
Ring, conducting ring are enclosed on center steering cavity, and conducting ring inner ring diameter is more than center steering cavity race diameter, conducting ring with
Insulator is filled between center steering cavity；The signal transmission feedback element includes signal wire I, signal wire II and structure
Identical signal input part and signal output part, the signal input part and signal output part correspond to the position of conducting ring all from outer
Portion is radially inserted through positioning sleeve, and signal input part, signal output part center are all provided with conductive bar, before the conductive bar
End is provided with conductive hemisphere, and conductive hemisphere front end face contacts with the annular outer surface of conducting ring；
The signal wire I, signal wire II are placed in the center steering cavity and drilling rod of connection, and the one end of signal wire I passes through
Center steering cavity wall and the conducting ring inner ring for being fixed on signal input part corresponding position, the other end is with being fixed on drilling rod
Temperature sensing cable input connection；The one end of signal wire II, which passes through center steering cavity wall and is fixed on signal output part, corresponds to position
The conducting ring inner ring at place is put, the other end is connected with the temperature sensing cable output end being fixed on drilling rod.
Further, in order to ensure that conductive hemisphere can be contacted with conducting ring outer ring with all-the-time stable, increase the service life, institute
State and spring is cased with conductive bar, and spring one end withstands conductive hemisphere, the other end is located at signal input part or signal where it
On the inwall of output end.
Preferably, the signal input part and signal output part all have two, are set side by side along positioning sleeve length direction respectively
On positioning sleeve.
Preferably, the temperature sensing cable is located in the locating slot on drilling rod surface, and the locating slot is set along run of steel direction
On its external wall, and locating slot both ends are provided with through hole, and temperature sensing cable is laid in locating slot, and drilling rod is inserted in both ends from through hole
It is interior.
Further, laying high-strength high temperature-resistant resin in locating slot, high-strength high temperature-resistant resin covering temperature sensing cable, two
End is fixed on drilling rod by jump ring respectively.
Preferably, the insulator is insulated nylon.
Further, signal wire I, signal wire II and its through center steering cavity wall space between fill
There is resin.
Preferably, in order to ensure the normal supply of cooling water, water becomes centriciput movable sleeve and is provided with rotary sleeve, the rotary sleeve
On have a water inlet, the water channel that the water inlet is become in head by water is connected together with connection end.
Device of the present utility model is connected into rig water to become between head and drilling rod, during drilling, from outside by signal
Input continues to reach signal output through signal wire I, temperature sensing cable, signal wire II to temperature measuring valve block input electrical signal, electric signal
End, when temperature exceedes the design temperature of temperature sensing cable, short circuit occurs for temperature sensing cable, and short-circuit signal can be with by signal output part
Output to coupled warning piece sends warning.The different monitoring points of same working region and same monitoring point change
The temperature sensing cable of different detection temperatures can monitor the temperature of a wide range of working region, and multiple measuring points may be constructed temperature net, use
To instruct the fire such as goaf to prevent and treat.
The utility model and the existing equipment matching degree height of drilling in colliery, can be operated with in-site installation.Because it is located at drilling tool
In, it will not be influenceed by the pressure in coal seam or other foreign impacts during measurement；Need not be pre-buried, measurement position can be selected flexibly；
Under practical state, can not only search coverage profiling temperatures, drilling can also be measured when drilling rod deeply drills along journey
Temperature, be highly suitable for the monitoring temperature in the easily ignitable hidden region of underground coal mine.Its set point temperature detects and drilling edge
The testing result of journey temperature changing trend mutually can confirm and supplement, and make it have the higher degree of accuracy and sensitivity, can
The temperature of coal mine gob and other fire areas is detected exactly, so as to be advantageous to carry out prevention work in advance, is instructed
The preventing and treating of working face fire, the probability for reducing fire generation, the input cost of fire hazard treating is finally greatly reduced, is improved existing
The security of field operation.
Brief description of the drawings
Fig. 1 is temperature measuring valve block structure schematic diagram of the present utility model；
Fig. 2 is the partial sectional view of the utility model drilling rod；
Fig. 3 is Fig. 2 top view；
Fig. 4 is the schematic diagram that the utility model water becomes head；
In figure, 1. water change head, 11. rig connectors, 12. rotary sleeves, 12a. water inlets, 13. connection ends, 14. water channels,
2. temperature measuring valve block, 21. center steering cavitys, 21a. pipe joints, 21b. male connections, 22. positioning sleeves, 23. times
Rotating shaft is held, 24. conducting rings, 25. insulators,
3. drilling rod, 31. female adapters, 32. joints, 33. temperature sensing cables, 33a. locating slots, 33b. through holes, 33c. are high-strength
Degree fire resistant resin, 33d. jump rings,
40a. conductive bars, 40b. conduction hemisphere, 40c. springs, 40d. resins, 41. signal wires I, 42. signal wires II, 43.
Signal input part, 44. signal output parts.
Embodiment
The utility model is described in further detail below in conjunction with the accompanying drawings.
As shown in Figures 1 to 4, it is a kind of to become for coal mine gob temperature sensing with brill thermometric drilling tool, including water
First 1 and drilling rod 3, the water, which becomes between first 1 and drilling rod 3, is provided with temperature measuring valve block 2, and temperature measuring valve block 2 includes the He of center steering cavity 21
Signal transmits feedback element, and the rig connector 11 that rig becomes first 1 with water is connected, and center go back to is inserted in the connection end 13 that water becomes first 1
Turn the pipe joint 21a of the one end of cavity 21, the male connection 21b and drilling rod 3 of the other end of center steering cavity 21 internal thread connect
First 31 are connected, and the other end of drilling rod 3 connects a drill bit (not shown) by joint 32；The signal transmits feedback element
Coordinated by positioning sleeve 22 and be arranged on center steering cavity 21, one is provided between the center steering cavity 21 and positioning sleeve 22
To floating bearing 23, and conducting ring 24 is interval with the cavity between positioning sleeve 22 and center steering cavity 21, conducting ring 24
Be enclosed on center steering cavity 21, and the inner ring diameter of conducting ring 24 is more than the race diameter of center steering cavity 21, conducting ring 24 with
Insulator 25 is filled between center steering cavity 21；Signal transmission feedback element include signal wire I 41, signal wire II 42,
And structure identical signal input part 43 and signal output part 44, the signal input part 43 and signal output part 44 are corresponding to lead
The position of electric ring 24 is all radially inserted through positioning sleeve 22, and signal input part 43, the center of signal output part 44 from outside
Conductive bar 40a is all provided with, the conductive bar 40a front ends are provided with conductive hemisphere 40b, conductive hemisphere 40b front end faces and conducting ring 24
Annular outer surface contact；44 external warning piece of signal output part.
The signal wire I 41, signal wire II 42 are placed in the center steering cavity 21 and drilling rod 3 of connection, and signal wire I 41
One end is through the side wall of center steering cavity 21 and is fixed on the inner ring of conducting ring 24 of the corresponding position of signal input part 43, the other end
It is connected with the input of temperature sensing cable 33 being fixed on drilling rod 3；The one end of signal wire II 42 passes through the side wall of center steering cavity 21 simultaneously
It is fixed on the inner ring of conducting ring 24 of the corresponding position of signal output part 44, the other end and the temperature sensing cable 33 being fixed on drilling rod 3
Output end connects.
Preferably, spring 40c is cased with the conductive bar 40a, and conductive hemisphere 40b, the other end are withstood in spring 40c one end
On the signal input part 43 or the inwall of signal output part 44 being located at where it.Such setting can effectively avoid drilling process
It is middle because caused by external force rigid collision trigger loose contact the problems such as, spring 40c can absorb impact, ensure that conductive hemisphere
40b can be contacted with the outer ring of conducting ring 24 with all-the-time stable.
Preferably, the signal input part 43 and signal output part 44 all have two, respectively along the length direction of positioning sleeve 22
Be located at side by side on positioning sleeve 22, correspondingly, signal wire I 41, signal wire II 42 have two respectively, two signal wires I 41 respectively with
The conducting ring 24 of two present positions of signal input part 43 contacts, and is connected jointly with the input of temperature sensing cable 33 on drilling rod 3；
Conducting ring 24 of two signal wires II 42 respectively with two present positions of signal output part 44 contacts, and jointly with drilling rod 3
The output end of temperature sensing cable 33 connects.Two signals export input simultaneously, enhance the intensity of signal feedback, ensure the stabilization of measurement
Property and accuracy rate.
Preferably, as shown in Figure 2 to Figure 3, the temperature sensing cable 33 is located in the locating slot 33a on the surface of drilling rod 3, described fixed
Position groove 33a is set on its external wall along the length direction of drilling rod 3, and locating slot 33a both ends are provided with through hole 33b, and temperature sensing cable 33 is laid
In locating slot 33a, and both ends are out of through hole 33b insertion drilling rods 3.
Further, in order to avoid in drilling rod rotary course with rock collision caused by frictional force and high temperature failure temperature-sensitive
Cable 33, ensure that the installation of temperature sensing cable 33 consolidates, high-strength high temperature-resistant resin 33c, the resistance to height of high intensity are laid in locating slot 33a
Warm resin 33c covers temperature sensing cable 33, and both ends are fixed on drilling rod 3 by jump ring 33d respectively.
Preferably, the insulator 25 is insulated nylon.
Further, in order to ensure being insulated between signal wire I 41, signal wire II 42 and center steering cavity 21, signal wire I
41st, signal wire II 42 and its through the side wall of center steering cavity 21 space between be filled with resin 40d.
Preferably, as shown in figure 4, water, which becomes first 1 middle part movable sleeve, is provided with rotary sleeve 12, there is water inlet on the rotary sleeve 12
The water channel 14 that 12a, the water inlet 12a are become in first 1 by water is connected together with connection end 13.Become first 1 by water in rig
Drive in the rotary course of drilling rod 3, rotary sleeve 12 will not turn round, and cooling water can enter from water inlet 12a, pass through water channel 14
Inputted with connection end 13 into back-connected drilling rod 3, so as to which the rotation of drilling rod 3 does not interfere with the normal supply of cooling water.
Operation principle：Before use, according to detection need select needed for model temperature sensing cable 33, the temperature sensing cable 33 of selection
Detection temperature should be less than the temperature value of coal seam theory spontaneous combustion, and the temperature sensing cable 33 chosen in advance is installed to previously described
Position.Rig, water are become after first 1, temperature measuring valve block 2, drilling rod 3 and drill bit connect, start to drill, during drilling, from outer
Portion is continued to the input electrical signal of temperature measuring valve block 2 by signal input part 43, and electric signal is through signal wire I 41, temperature sensing cable 33, signal
Line II 42 reaches signal output part 44, and when temperature exceedes the design temperature of temperature sensing cable 33, short circuit occurs for temperature sensing cable 33, short
Road signal is exported to coupled warning piece, warning piece by signal output part 44 includes PLC and warning lamp,
PLC receives i.e. controllable warning lamp luminous alarm after signal.In real work, the difference monitoring in same working region
The temperature of a wide range of working region can be monitored by putting and changed in same monitoring point the temperature sensing cable of different detection temperatures, multiple
Measuring point may be constructed temperature net, to instruct the fire such as goaf to prevent and treat, improves operating efficiency, reduces disaster hidden-trouble.
Claims (8)
1. a kind of become head (1) and drilling rod (3) for coal mine gob temperature sensing with brill thermometric drilling tool, including water, its
It is characterised by, the water, which becomes between head (1) and drilling rod (3), is provided with temperature measuring valve block (2), and temperature measuring valve block (2) includes center steering chamber
Body (21) and signal transmission feedback element, the water become connection end (13) insertion center steering cavity (21) one end of head (1)
Pipe joint (21a), the male connection (21b) of center steering cavity (21) other end and the female adapter (31) of drilling rod (3)
It is connected；
The signal transmission feedback element is coordinated by positioning sleeve (22) to be arranged on center steering cavity (21), and the center is returned
Turn to be provided with a pair of floating bearings (23) between cavity (21) and positioning sleeve (22), and positioning sleeve (22) and center steering cavity (21)
Between cavity in be interval with conducting ring (24), conducting ring (24) is enclosed on center steering cavity (21), and conducting ring (24)
Inner ring diameter is more than center steering cavity (21) race diameter, and insulation is filled between conducting ring (24) and center steering cavity (21)
Body (25)；It is defeated that the signal transmission feedback element includes signal wire I (41), signal wire II (42) and structure identical signal
Enter the position of end (43) and signal output part (44), the signal input part (43) and the corresponding conducting ring (24) of signal output part (44)
Put and be all radially inserted through positioning sleeve (22) from outside, and signal input part (43), signal output part (44) center are all set
There is conductive bar (40a), conductive bar (40a) front end is provided with conductive hemisphere (40b), conductive hemisphere (40b) front end face and conduction
The annular outer surface contact of ring (24)；
The signal wire I (41), signal wire II (42) are placed in the center steering cavity (21) and drilling rod (3) of connection, and signal
Line I (41) one end is through center steering cavity (21) side wall and is fixed on the conducting ring of signal input part (43) corresponding position
(24) inner ring, the other end are connected with temperature sensing cable (33) input being fixed on drilling rod (3)；Signal wire II (42) one end passes through
Center steering cavity (21) side wall and conducting ring (24) inner ring for being fixed on signal output part (44) corresponding position, the other end with
Temperature sensing cable (33) output end connection being fixed on drilling rod (3).
2. it is according to claim 1 for coal mine gob temperature sensing with boring thermometric drilling tool, it is characterised in that
Spring (40c) is cased with the conductive bar (40a), and conductive hemisphere (40b) is withstood in spring (40c) one end, the other end is located at it
On the signal input part (43) at place or the inwall of signal output part (44).
3. it is according to claim 1 for coal mine gob temperature sensing with boring thermometric drilling tool, it is characterised in that
The signal input part (43) and signal output part (44) all have two, and it is fixed to be located at side by side along positioning sleeve (22) length direction respectively
On position set (22).
4. it is according to claim 1 for coal mine gob temperature sensing with boring thermometric drilling tool, it is characterised in that
The temperature sensing cable (33) is located in the locating slot (33a) on drilling rod (3) surface, and the locating slot (33a) is along drilling rod (3) length side
To setting on its external wall, and locating slot (33a) both ends are provided with through hole (33b), and temperature sensing cable (33) is laid on locating slot (33a)
In, and both ends are out of through hole (33b) insertion drilling rod (3).
5. it is according to claim 4 for coal mine gob temperature sensing with boring thermometric drilling tool, it is characterised in that
Laying high-strength high temperature-resistant resin (33c) in locating slot (33a), high-strength high temperature-resistant resin (33c) covering temperature sensing cable (33),
Both ends are fixed on drilling rod (3) by jump ring (33d) respectively.
6. it is according to claim 1 for coal mine gob temperature sensing with boring thermometric drilling tool, it is characterised in that
The insulator (25) is insulated nylon.
7. it is according to claim 1 for coal mine gob temperature sensing with boring thermometric drilling tool, it is characterised in that
Signal wire I (41), signal wire II (42) and its through center steering cavity (21) side wall space between filled with tree
Fat (40d).
8. it is according to claim 1 for coal mine gob temperature sensing with boring thermometric drilling tool, it is characterised in that
Water becomes movable sleeve in the middle part of head (1) and is provided with rotary sleeve (12), has water inlet (12a), the water inlet on the rotary sleeve (12)
The water channel (14) that (12a) is become in head (1) by water is connected together with connection end (13).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721156673.1U CN207212328U (en) | 2017-09-11 | 2017-09-11 | For coal mine gob temperature sensing with brill thermometric drilling tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721156673.1U CN207212328U (en) | 2017-09-11 | 2017-09-11 | For coal mine gob temperature sensing with brill thermometric drilling tool |
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| Publication Number | Publication Date |
|---|---|
| CN207212328U true CN207212328U (en) | 2018-04-10 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721156673.1U Active CN207212328U (en) | 2017-09-11 | 2017-09-11 | For coal mine gob temperature sensing with brill thermometric drilling tool |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107503741A (en) * | 2017-09-11 | 2017-12-22 | 中国矿业大学 | It is a kind of for coal mine gob temperature sensing with boring thermometric drilling tool |
-
2017
- 2017-09-11 CN CN201721156673.1U patent/CN207212328U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107503741A (en) * | 2017-09-11 | 2017-12-22 | 中国矿业大学 | It is a kind of for coal mine gob temperature sensing with boring thermometric drilling tool |
| CN107503741B (en) * | 2017-09-11 | 2023-08-15 | 中国矿业大学 | While-drilling measurement Wen Zuanju for coal mine underground goaf temperature detection |
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