Geological exploration high-temperature drilling temperature measuring device

Abstract

The utility model relates to the technical field of coal mine disaster management and drilling exploration temperature measurement, in particular to a geological exploration high-temperature drilling temperature measuring device which comprises a horizontally-arranged mounting seat, a cable storage unit is mounted at the top of the mounting seat, a temperature measuring optical fiber is wound on the cable storage unit, and the temperature measuring optical fiber is wound on the mounting seat. A cable position picking mechanism is installed on the top of the portion, on the front side of the cable storage unit, of the installation base, walking wheels are installed in two wheel carriers arranged at the bottom of the rear side of the installation base in a spaced mode respectively, and a thermocouple temperature measuring probe is installed at the temperature measuring end of the temperature measuring optical fiber. The geological prospecting high-temperature drilling temperature measuring device is convenient to operate when drilling temperature measurement is carried out, a manual and automatic integrated defensive line structure is adopted, the temperature measuring optical fiber can be effectively guided through the centralizing guider when the temperature measuring optical fiber is automatically lowered, collision damage caused by contact between a thermocouple temperature measuring probe and a hole wall is avoided, and safety is high when the temperature measuring optical fiber is lowered.

Description

Technical Field

[0001] The utility model relates to the technical field of coal mine geological disaster control and drilling exploration temperature measurement, in particular to a geological exploration high-temperature drilling temperature measurement device. Background Art

[0002] In the process of coal mining, with the widespread adoption of comprehensive mining technology, the disadvantages of high intensity of one-time mining, high caving space, relatively large air supply volume of the working face, large amount of coal left after one-time mining, and serious air leakage have been exposed, resulting in frequent spontaneous fires in the goaf. In order to ensure the safety of the mine, it is necessary to adopt the drilling exploration method and implement drilling temperature measurement to determine the fire zone and stratum conditions, and provide a basis for geological disaster control.

[0003] The existing temperature measurement method mainly relies on various temperature sensors connected to wires to measure in the borehole, and the temperature is read by a ground data acquisition instrument. For example, a temperature acquisition device is disclosed in the patent document with patent publication number CN209326828U. Its temperature measurement principle is mainly to set a formation temperature sensor at the borehole, and then use the temperature acquisition device to complete the borehole temperature measurement.

[0004] However, in the actual drilling process, due to the spontaneous combustion of residual coal, the temperature in the hole reaches over 300°C, and the geological conditions in the borehole are complex. In addition, the borehole is deep and long, and a wide measurement range is required. This puts high demands on the temperature measuring instrument's abrasion resistance, high temperature resistance, and long-term accurate measurement under complex working conditions.

[0005] The existing technology usually requires that the key parts such as sensors and temperature measuring lines be insulated and reinforced to reduce the ambient temperature of key components of the instrument and improve wear resistance so that the instrument can meet normal working conditions to cope with high temperature and complex formation temperature measurement tasks; however, this method will result in high instrument modification costs, and the size of the instrument will become larger due to the modification, which will also lead to larger requirements for the size of the wellbore, and will cause the lowering measurement and recovery process to be time-consuming and labor-intensive. Therefore, it is very necessary to propose an economical, practical and easy-to-operate borehole temperature measurement device.

[0006] To this end, the utility model proposes a new structure of a high-temperature drilling temperature measuring device for geological exploration in view of the above technical problems, so as to better solve the problems existing in the prior art. Utility Model Content

[0007] The utility model is to solve one of the above technical problems, and the technical scheme adopted is: a geological exploration high-temperature drilling temperature measuring device, comprising a horizontally arranged mounting seat, a cable storage unit is installed on the top of the mounting seat, a temperature measuring optical fiber is wound on the cable storage unit, a cable positioning mechanism is installed on the top of the mounting seat on the front side of the cable storage unit, the temperature measuring end of the temperature measuring optical fiber bypasses the end of the cable positioning mechanism and extends vertically downward to the inside of the borehole at the corresponding position in a working state, a mobile power supply is fixedly installed on the top of the mounting seat on the rear side of the cable storage unit, a data acquisition instrument is installed on the top of the cable storage unit, the wiring terminal of the data acquisition instrument is connected with the end signal of the temperature measuring optical fiber, walking wheels are respectively installed in two wheel frames spaced apart at the bottom of the rear side of the mounting seat, front end supports are respectively fixedly installed on the bottom of the mounting seat on the front side of the two walking wheels, and a thermocouple temperature measuring probe is installed on the temperature measuring end of the temperature measuring optical fiber.

[0008] In any of the above schemes, preferably, the cable storage unit includes a U-shaped frame fixedly mounted on the top of the middle section of the mounting seat, a horizontal axle is installed inside the U-shaped frame, and both ends of the horizontal axle are respectively mounted in grooves arranged in the middle of the vertical sections on both sides of the U-shaped frame, and the top of each groove is open, and a servo motor is fixedly mounted on the outer wall of the vertical section of the U-shaped frame on one side, the servo motor is fixedly connected to the corresponding end of the horizontal axle, and a rope drum is fixedly sleeved and installed on the outer wall of the horizontal axle, the temperature measuring optical fiber is wound on the middle rope groove of the rope drum, and end baffles are fixedly mounted on both ends of the rope drum, and limiting guide rods are respectively arranged at intervals around the rope drum, and the two ends of each limiting guide rod are respectively fixed to the vertical sections corresponding to the U-shaped frame.

[0009] In any of the above schemes, it is preferred that the cable positioning mechanism includes a servo electric cylinder arranged at the top center of the mounting seat on the front side of the rope winding drum, the lower end of the servo electric cylinder is movably hinged on the lower ear seat, and the lower ear seat is fixed on the top of the mounting seat, and a side support unit is arranged on the mounting seat on the front side of the servo electric cylinder, and the side support unit is used to complete the lateral support and inclination adjustment of the servo electric cylinder, and a cable guide is installed at the end of the piston rod of the servo electric cylinder.

[0010] In any of the above schemes, it is preferred that the cable guide includes a first wheel frame fixedly mounted on the end of the piston rod of the servo electric cylinder, a first guide rope roller is movably mounted in the mounting cavity of the first wheel frame, and the temperature measuring end of the temperature measuring optical fiber bypasses the first guide rope roller and extends vertically downward into the drill hole.

[0011] Preferably, in any of the above schemes, a second wheel frame is arranged at intervals on the outside of the first wheel frame, a second guide rope roller is movably installed in the installation cavity of the second wheel frame, connecting studs are symmetrically and spaced apart in the space on the lower sides of the first wheel frame and the second wheel frame, a space for the temperature measuring end of the temperature measuring optical fiber to pass through is formed between the two connecting studs, the ends of each connecting stud respectively pass through the bottom plate of the first wheel frame and the bottom plate of the second wheel frame on the corresponding side and are respectively locked on the bottom plate of the first wheel frame and the bottom plate of the second wheel frame by two locking nuts at corresponding positions, and a space for the temperature measuring optical fiber to pass through is formed between the first guide rope roller and the second guide rope roller.

[0012] In any of the above schemes, preferably, a control motor is fixedly mounted on the outer side wall corresponding to the second wheel frame, and the motor shaft of the control motor is used to be coaxially fixedly connected to the corresponding end of the central axis of the second guide rope roller.

[0013] In any of the above schemes, it is preferred that the side support unit includes an obliquely arranged supporting electric cylinder, the lower end of the supporting electric cylinder is hinged on the lower supporting ear seat, the upper end of the piston rod of the supporting electric cylinder is movably hinged on the upper supporting ear seat, and the upper supporting ear seat is fixed on the outer side wall of the cylinder barrel of the servo electric cylinder.

[0014] In any of the above schemes, it is preferred that the temperature measuring end of the temperature measuring optical fiber is a thermocouple temperature measuring probe, and the outside of the armored protective tube is connected to the upper end of the armored protective tube is fixed to the outer wall of the temperature measuring optical fiber through a connecting end cover, and an external thread is provided on the outer wall of the armored protective tube, and a straightening guide is screwed and installed on the external thread section of the armored protective tube.

[0015] In any of the above schemes, it is preferred that the straightening guide includes a through screw tube screwed on the outer side wall of the external thread of the armored protective tube, an internal thread is arranged on the inner side wall of the through screw tube, and a plurality of vertical grooves are evenly spaced along the circumference of the outer side wall of the through screw tube, and a plurality of guide rollers are installed in each of the vertical grooves from top to bottom, and both ends of the central axis of each guide roller are movably inserted in the rotating holes of the corresponding side walls of the vertical grooves, and the outer side walls of each guide roller extend to the outside of the vertical grooves and are used to abut against the inner wall of the drilled hole.

[0016] In any of the above solutions, it is preferred that the servo electric cylinder adopts a servo electric cylinder structure with a self-locking piston rod.

[0017] In any of the above solutions, preferably, a handrail frame is fixedly mounted on the rear side of the mounting seat.

[0018] In any of the above schemes, preferably, the temperature measuring optical fiber includes a temperature measuring optical fiber body located in the center, a thermal insulation layer is coated on the periphery of the temperature measuring optical fiber body, and an armor layer is coated on the periphery of the thermal insulation layer.

[0019] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0020] The utility model is a geological exploration high-temperature drilling temperature measuring device, which is easy to operate when measuring the temperature of a borehole and adopts a manual-automatic integrated defense line structure. The temperature measuring optical fiber can be effectively guided by a straightening guide when it is automatically lowered, thereby avoiding collision damage caused by contact between the thermocouple temperature measuring probe and the hole wall, and has high safety during lowering.

[0021] 2. The temperature measurement optical fiber with external protection can transmit the temperature measurement signal to the existing data acquisition instrument in real time, read and record the temperature measurement data in real time, and accurately obtain the temperature measurement value. It is suitable for various deep drilling temperature measurements.

[0022] 3. The servo electric cylinder provided in this device can be used as a telescopic arm and lifted as needed. At the same time, it can be lifted to different inclination angles and heights as needed in conjunction with the corresponding side support unit. It can be extended and raised according to the position of the drilling hole, and can be folded and lowered during transportation, which is convenient to operate. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the technical solution of the specific implementation of the utility model, the following will briefly introduce the drawings required for the specific implementation. In all the drawings, similar elements or components are generally identified by similar reference numerals. In the drawings, each element or component is not necessarily drawn according to the actual scale.

[0024] Figure 1 It is a schematic diagram of the structure of the utility model in use state.

[0025] Figure 2 It is a front structural schematic diagram of the cable storage unit of the present utility model.

[0026] Figure 3 It is a side structural schematic diagram of the U-shaped frame of the utility model.

[0027] Figure 4 It is a schematic diagram of the three-dimensional structure of the temperature measuring optical fiber wound on the rope drum of the utility model.

[0028] Figure 5 It is a schematic diagram of the partially enlarged structure of the temperature measuring end of the temperature measuring optical fiber of the utility model.

[0029] Figure 6 It is a schematic diagram of the cross-sectional structure of the temperature measuring optical fiber of the present utility model.

[0030] Figure 7It is a schematic diagram of the three-dimensional structure of the centralizing guide of the utility model.

[0031] Figure 8 It is a schematic diagram of the top view of the structure of the centralizing guide of the utility model.

[0032] Fig. 9 It is an enlarged structural schematic diagram of the cable guide of the utility model.

[0033] In the figure, 1, mounting base; 2, temperature measuring optical fiber; 201, temperature measuring optical fiber body; 202, thermal insulation layer; 203, armor layer; 3, drilling; 4, mobile power supply; 5, data acquisition instrument; 6, wheel frame; 7, running wheel; 8, thermocouple temperature measuring probe; 9, U-shaped frame; 10, horizontal wheel shaft; 11, card slot; 12, servo motor; 13, rope drum; 14, end stopper; 15, limit guide rod; 16, servo motor Cylinder; 17. Lower ear seat; 18. First wheel frame; 19. First guide rope roller; 20. Second wheel frame; 21. Second guide rope roller; 22. Locking nut; 23. Control motor; 24. Support electric cylinder; 25. Lower support ear seat; 26. Upper support ear seat; 27. Armored protection tube; 28. Straightening guide; 29. ​​Through screw tube; 30. Vertical slot; 31. Guide roller; 32. Handrail frame; 33. Connecting stud. DETAILED DESCRIPTION

[0034] The following is a detailed description of the embodiments of the technical solution of the utility model in conjunction with the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the utility model, and are therefore only used as examples, and cannot be used to limit the scope of protection of the utility model. Figure 1-Figure 9 as shown in .

[0035] Embodiment 1: The present invention is used to solve the problem that existing temperature measuring instruments cannot accurately and conveniently measure the temperature inside the temperature hole under ultra-high temperature and complex geological conditions, and effectively overcomes the problem that the probe and temperature measuring optical fiber 2 in the prior art are not resistant to high temperature and grinding.

[0036] A high-temperature drilling temperature measuring device for geological exploration is hereby provided, comprising a horizontally arranged mounting seat 1, a cable storage unit is installed on the top of the mounting seat 1, a temperature measuring optical fiber 2 is wound on the cable storage unit, a cable positioning mechanism is installed on the top of the mounting seat 1 on the front side of the cable storage unit, the temperature measuring end of the temperature measuring optical fiber 2 bypasses the end of the cable positioning mechanism and extends vertically downward to the inside of the borehole 3 at the corresponding position in a working state, a mobile power supply 4 is fixedly installed on the top of the mounting seat 1 on the rear side of the cable storage unit, a data acquisition instrument 5 is installed on the top of the cable storage unit, the wiring terminal of the data acquisition instrument 5 is signal-connected with the end of the temperature measuring optical fiber 2, walking wheels 7 are respectively installed in two wheel frames 6 spaced apart at the bottom of the rear side of the mounting seat 1, front end supports are respectively fixedly installed on the bottom of the mounting seat 1 in front of the two walking wheels 7, and a thermocouple temperature measuring probe 8 is installed at the temperature measuring end of the temperature measuring optical fiber 2.

[0037] The geological exploration high-temperature drilling 3 temperature measuring device in the utility model relies on the cable storage unit to store the temperature measuring optical fiber 2 as a whole. When the temperature of the drilling hole 3 needs to be measured, the cable positioning mechanism can quickly drive it to extend and lift it to a suitable high-temperature position. The temperature measuring optical fiber 2 is lowered by manual or electric control so that the temperature measuring end of the temperature measuring optical fiber 2 is continuously extended downward to a suitable depth. When measuring the temperature, the thermocouple temperature measuring probe 8 is used to complete the temperature measurement.

[0038] A pair of running wheels 7 arranged at the rear of the mounting base 1 can facilitate carrying and moving. The front end support member cannot be moved when it falls to the ground, which is convenient for fixing the entire device to prevent displacement. The mobile power supply 4 at the rear is detachable and supplies power to various electrical equipment through the power interface.

[0039] In any of the above schemes, it is preferred that the cable storage unit includes a U-shaped frame 9 fixedly mounted on the top of the middle section of the mounting seat 1, and a horizontal axle 10 is installed inside the U-shaped frame 9, and the two ends of the horizontal axle 10 are respectively mounted in the slots 11 set in the middle of the vertical sections on both sides of the U-shaped frame 9, and the tops of each of the slots 11 are open. A servo motor 12 is fixedly mounted on the outer wall of the vertical section of the U-shaped frame 9 on one side, and the servo motor 12 is fixedly connected to the corresponding end of the horizontal axle 10, and a rope drum 13 is fixedly sleeved and installed on the outer wall of the horizontal axle 10, and the temperature measuring optical fiber 2 is wound on the middle rope groove of the rope drum 13, and end baffles 14 are fixedly mounted on both ends of the rope drum 13, and limiting guide rods 15 are respectively arranged at intervals around the rope drum 13, and the two ends of each limiting guide rod 15 are respectively fixed on the vertical sections corresponding to the U-shaped frame 9.

[0040] The entire cable storage unit relies on the rope drum 13 to complete the winding of the temperature measuring optical fiber 2. At the same time, under the action of the servo motor 12, it can ensure that it remains fixed during normal transportation to prevent it from being decoupled.

[0041] In any of the above schemes, it is preferred that the cable positioning mechanism includes a servo electric cylinder 16 arranged at the top center of the mounting seat 1 on the front side of the rope drum 13, the lower end of the servo electric cylinder 16 is movably hinged on the lower ear seat 17, and the lower ear seat 17 is fixed on the top of the mounting seat 1, and a side support unit is arranged on the mounting seat 1 on the front side of the servo electric cylinder 16, and the side support unit is used to complete the lateral support and inclination adjustment of the servo electric cylinder 16, and a cable guide is installed at the end of the piston rod of the servo electric cylinder 16.

[0042] When the cable positioning mechanism is working, the extension angle and height of the cable guide at its front end can be driven by controlling the extension and contraction of the servo electric cylinder 16, so as to facilitate the control of the lowering position of the temperature measuring optical fiber 2 passing thereon.

[0043] In any of the above schemes, it is preferred that the cable guide includes a first wheel frame 18 fixedly mounted on the end of the piston rod of the servo electric cylinder 16, a first guide rope roller 19 is movably mounted in the mounting cavity of the first wheel frame 18, and the temperature measuring end of the temperature measuring optical fiber 2 bypasses the first guide rope roller 19 and extends vertically downward into the borehole 3.

[0044] In the cable guide, the temperature measuring optical fiber 2 is relied on to pass around the first guide rope roller 19 from top to bottom and then move vertically downward to ensure the stability of the guide rope of the temperature measuring optical fiber 2.

[0045] In any of the above schemes, it is preferred that a second wheel frame 20 is spaced apart on the outside of the first wheel frame 18, a second guide rope roller 21 is movably installed in the installation cavity of the second wheel frame 20, and connecting studs 33 are symmetrically and spaced apart in the space on the lower sides of the first wheel frame 18 and the second wheel frame 20, respectively, and a space for the temperature measuring end of the temperature measuring optical fiber 2 to pass through is formed between the two connecting studs 33, and the ends of each connecting stud 33 respectively pass through the bottom plate of the first wheel frame 18 and the bottom plate of the second wheel frame 20 on the corresponding side and are respectively locked on the bottom plate of the first wheel frame 18 and the bottom plate of the second wheel frame 20 by two locking nuts 22 at corresponding positions, and a space for the temperature measuring optical fiber 2 to pass through is formed between the first guide rope roller 19 and the second guide rope roller 21.

[0046] The coordination of the first guide rope roller 19 and the second guide rope roller 21 can effectively ensure the effective positioning of the passing temperature measuring optical fiber 2, prevent it from swinging, and ensure stability during pay-off; at the same time, each locking nut 22 can be adjusted according to the thickness of the temperature measuring optical fiber 2 to achieve matching, and the adaptability is stronger.

[0047] In any of the above schemes, preferably, a control motor 23 is fixedly mounted on the corresponding outer side wall of the second wheel frame 20, and the motor shaft of the control motor 23 is used to be coaxially fixedly connected to the corresponding end of the central axis of the second guide rope roller 21.

[0048] The control motor 23 cooperates with the second guide rope roller 21 to guide the temperature measuring optical fiber 2 for lowering and paying out the wire, thereby ensuring the smoothness of lowering and paying out the wire.

[0049] In any of the above schemes, it is preferred that the side support unit includes an obliquely arranged supporting electric cylinder 24, the lower end of the supporting electric cylinder 24 is hinged on the lower supporting ear seat 25, the upper end of the piston rod of the supporting electric cylinder 24 is movably hinged on the upper supporting ear seat 26, and the upper supporting ear seat 26 is fixed on the outer wall of the cylinder barrel of the servo electric cylinder 16.

[0050] Controlling the extension of the supporting electric cylinder 24 can drive the swing angle of the servo electric cylinder 16 above it, so as to facilitate controlling the position of the temperature measuring optical fiber 2 above the entire servo electric cylinder 16 for lowering and releasing the wire.

[0051] Embodiment 2: Compared with Embodiment 1, this embodiment is different in that it also includes the following technical features:

[0052] At the temperature measuring end of the temperature measuring optical fiber 2 is a thermocouple temperature measuring probe 8, and an armored protective tube 27 is connected to the outside. The upper end of the armored protective tube 27 is fixed to the outer wall of the temperature measuring optical fiber 2 by connecting the end cover. An external thread is provided on the outer wall of the armored protective tube 27, and a straightening guide 28 is screwed and installed on the external thread section of the armored protective tube 27.

[0053] The thermocouple temperature measuring probe 8 has an armored protective tube 27, which can provide better protection for the probe and should not affect the normal operation of temperature measurement accuracy.

[0054] In addition, the straightening guide 28 arranged on the outside of the thermocouple temperature measuring probe 8 can ensure that the probe is always located near the center of the borehole 3 during the lowering process, solving the problem of circling against the wall, ensuring that the real-time measured temperature is the actual temperature in the hole, and reducing the interference of the thermocouple temperature measuring probe 8 sticking to the wall on the accuracy of the measured temperature.

[0055] In any of the above schemes, it is preferred that the straightening guide 28 includes a through screw 29 screwed on the outer wall of the external thread of the armored protective tube 27, an internal thread is provided on the inner wall of the through screw 29, and a plurality of vertical slots 30 are evenly spaced along the circumference of the outer wall of the through screw 29, and a plurality of guide rollers 31 are installed at intervals from top to bottom in each of the vertical slots 30, and both ends of the central axis of each guide roller 31 are movably inserted in the rotating holes of the corresponding side walls of the vertical slots 30, and the outer walls of each guide roller 31 extend to the outside of the vertical slots 30 and are used to abut against the inner wall of the borehole 3.

[0056] The righting guides 28 in the righting guide 28 are connected with each other by threaded engagement, which can ensure the convenience of installation and disassembly, and at the same time, the righting guides 28 of different sizes can be selected and replaced according to the size of the aperture of the borehole 3; when the righting guide 28 is lowered, a plurality of guide rollers 31 are used to guide the temperature measuring end of the temperature measuring optical fiber 2, which is the thermocouple temperature measuring probe 8, to prevent it from sticking to the wall and ensure smoothness when lowering.

[0057] The threaded connection installation method can facilitate disassembly and assembly during transportation and disassembly and maintenance, maximize economic benefits, and overcome the defect that the optical fiber cannot be cut off in the past.

[0058] In any of the above schemes, it is preferred that the servo electric cylinder 16 adopts a servo electric cylinder structure with a self-locking piston rod. The self-locking electric cylinder structure can ensure that the piston rod does not rotate when moving, thereby maintaining its operational stability.

[0059] In any of the above solutions, preferably, an armrest frame 32 is fixedly mounted on the rear side of the mounting seat 1. By grasping the armrest frame 32, the smoothness and labor saving when the entire device is shifted can be ensured, and the operation is more convenient.

[0060] In any of the above schemes, it is preferred that the temperature measuring optical fiber 2 includes a temperature measuring optical fiber body 201 located in the center, a thermal insulation layer 202 is coated on the periphery of the temperature measuring optical fiber body 201, and an armor layer 203 is coated on the periphery of the thermal insulation layer 202.

[0061] The temperature measuring optical fiber body 201 is subjected to heat insulation armoring treatment, and has good heat insulation, wear resistance and tensile strength, ensuring that the optical fiber can work normally for a long time in the high temperature environment of the temperature measuring optical fiber 2 and in complex formations.

[0062] Among them, the first guide rope roller 19 adopts a pulley meter, and the temperature measuring optical fiber 2 is wound around the pulley meter. When the temperature measuring optical fiber 2 is lowered, every 10 turns of the pulley is 1m, that is, the temperature at the position 1m below the orifice is measured and recorded; the pulley meter is connected to the data acquisition instrument 5 signal and transmits the measurement data in real time.

[0063] Specific working principle: When the device is in electric start mode, the temperature measuring optical fiber 2 is autonomously lowered by controlling the drive of the motor 23. The lowering speed can be adjusted by the data acquisition instrument 5 to ensure that the lowering speed is uniform. Under this condition, continuous multi-point real-time measurement can be performed, forming good continuity in time and space, and realizing full-hole all-round temperature measurement, which is convenient for forming full-hole depth, time, and temperature curves, providing a powerful reference for fire zone judgment and formation analysis, overcoming the defects of single-point measurement of existing equipment, and improving the overall performance.

[0064] Among them, the thermocouple temperature measuring probe 8 has high accuracy, small deviation, large range, and a measuring range of -50°C-1300°C, which can meet the needs of precise measurement.

[0065] The temperature measuring optical fiber 2 is lowered by electric drive, which can ensure a smooth and continuous lowering rate, and can effectively measure the temperature changes of the entire borehole 3 in all time and space, overcoming the defects of manual lowering and single-point measurement in existing measurements, and providing a strong basis for fire zone judgment and geological survey.

[0066] The above embodiments are only used to illustrate the technical solution of the utility model, rather than to limit it. Although the utility model is described in detail with reference to the above embodiments, ordinary technicians in this field should understand that they can still modify the technical solutions recorded in the above embodiments, or replace some or all of the technical features therein with equivalents. These modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the utility model. For technicians in this technical field, any replacement improvements or changes made to the implementation methods of the utility model fall within the protection scope of the utility model.

[0067] The matters not described in detail in the present invention are all known technologies to those skilled in the art.

Claims

1. A high-temperature drilling temperature measuring device for geological exploration, Features: The invention comprises a horizontally arranged mounting seat, a cable storage unit is installed on the top of the mounting seat, a temperature measuring optical fiber is wound on the cable storage unit, a cable positioning mechanism is installed on the top of the mounting seat on the front side of the cable storage unit, the temperature measuring end of the temperature measuring optical fiber bypasses the end of the cable positioning mechanism and extends vertically downward to the inside of the drill hole at the corresponding position in a working state, a mobile power supply is fixedly installed on the top of the mounting seat on the rear side of the cable storage unit, a data acquisition instrument is installed on the top of the cable storage unit, a wiring terminal of the data acquisition instrument is signal-connected with the end of the temperature measuring optical fiber, traveling wheels are respectively installed in two wheel frames spaced apart at the bottom of the rear side of the mounting seat, front end supports are respectively fixedly installed on the bottom of the mounting seat in front of the two traveling wheels, and a thermocouple temperature measuring probe is installed on the temperature measuring end of the temperature measuring optical fiber.

2. A high-temperature drilling temperature measuring device for geological exploration according to claim 1, Features: The cable storage unit includes a U-shaped frame fixedly mounted on the top of the middle section of the mounting seat, a horizontal axle is installed inside the U-shaped frame, and both ends of the horizontal axle are respectively mounted in slots arranged in the middle of the vertical sections on both sides of the U-shaped frame, and the top of each slot is open, and a servo motor is fixedly mounted on the outer wall of the vertical section of the U-shaped frame on one side, the servo motor is fixedly connected to the corresponding end of the horizontal axle, and a rope drum is fixedly sleeved and installed on the outer wall of the horizontal axle, the temperature measuring optical fiber is wound on the middle rope groove of the rope drum, and end baffles are fixedly mounted on both ends of the rope drum, and limiting guide rods are respectively arranged at intervals around the rope drum, and the two ends of each limiting guide rod are respectively fixed to the vertical sections corresponding to the U-shaped frame.

3. A geological exploration high temperature drilling temperature measuring device according to claim 2, Features: The cable positioning mechanism includes a servo electric cylinder arranged at the top center of the mounting seat on the front side of the rope drum, the lower end of the servo electric cylinder is movably hinged on the lower ear seat, and the lower ear seat is fixed on the top of the mounting seat. A side support unit is arranged on the mounting seat on the front side of the servo electric cylinder, and the side support unit is used to complete the lateral support and inclination adjustment of the servo electric cylinder. A cable guide is installed at the end of the piston rod of the servo electric cylinder.

4. A geological exploration high temperature drilling temperature measuring device according to claim 3, Features: The cable guide includes a first wheel frame fixedly mounted on the end of the piston rod of the servo electric cylinder, a first guide rope roller is movably mounted in the mounting cavity of the first wheel frame, and the temperature measuring end of the temperature measuring optical fiber bypasses the first guide rope roller and extends vertically downward into the borehole.

5. A geological exploration high temperature drilling temperature measuring device according to claim 4, Features: A second wheel frame is arranged at intervals on the outside of the first wheel frame, and a second guide rope roller is movably installed in the installation cavity of the second wheel frame. Connecting studs are symmetrically and spaced apart in the space on the lower sides of the first wheel frame and the second wheel frame, and a space for the temperature measuring end of the temperature measuring optical fiber to pass through is formed between the two connecting studs. The ends of each connecting stud pass through the bottom plate of the first wheel frame and the bottom plate of the second wheel frame on the corresponding side, and are locked on the bottom plate of the first wheel frame and the bottom plate of the second wheel frame by two locking nuts at corresponding positions, and a space for the temperature measuring optical fiber to pass through is formed between the first guide rope roller and the second guide rope roller.

6. A geological exploration high temperature drilling temperature measuring device according to claim 5, Features: A control motor is fixedly mounted on the outer side wall corresponding to the second wheel frame, and the motor shaft of the control motor is used to be coaxially fixedly connected with the corresponding end of the central axis of the second guide rope roller.

7. A geological exploration high temperature drilling temperature measuring device according to claim 6, Features: The side support unit includes an inclined supporting electric cylinder, the lower end of which is hinged on a lower supporting ear seat, the upper end of a piston rod of the supporting electric cylinder is movably hinged on an upper supporting ear seat, and the upper supporting ear seat is fixed on the outer side wall of the cylinder barrel of the servo electric cylinder.

8. A geological exploration high temperature drilling temperature measuring device according to claim 7, Features: At the temperature measuring end of the temperature measuring optical fiber is a thermocouple temperature measuring probe, the outside of which is sleeved with an armored protective tube. The upper end of the armored protective tube is fixed to the outer wall of the temperature measuring optical fiber through a connecting end cover. An external thread is provided on the outer wall of the armored protective tube, and a straightening guide is screwed and installed on the external thread section of the armored protective tube.

9. A geological exploration high temperature drilling temperature measuring device according to claim 8, Features: The straightening guide includes a through screw tube screwed on the outer wall of the external thread of the armored protective tube, an internal thread is arranged on the inner wall of the through screw tube, and a plurality of vertical grooves are evenly arranged along the circumference of the outer wall of the through screw tube. A plurality of guide rollers are installed at intervals from top to bottom in each of the vertical grooves, and both ends of the central axis of each guide roller are movably inserted in the rotating holes of the corresponding side walls of the vertical grooves. The outer walls of each guide roller extend to the outside of the vertical grooves and are used to abut against the inner wall of the drilled hole.

10. A geological exploration high temperature drilling temperature measuring device according to claim 9, Features: The servo electric cylinder adopts a servo electric cylinder structure with a piston rod self-locking type; A handrail frame is fixedly mounted on the rear side of the mounting seat; The temperature measuring optical fiber comprises a temperature measuring optical fiber body located in the center, a heat preservation and heat insulation layer is coated on the periphery of the temperature measuring optical fiber body, and an armor layer is coated on the periphery of the heat preservation and heat insulation layer.

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