CN-121993040-A - Laser-drilling tool collaborative rock breaking drilling system under high-temperature and high-stress condition

CN121993040ACN 121993040 ACN121993040 ACN 121993040ACN-121993040-A

Abstract

The invention discloses a laser-drilling tool collaborative rock breaking drilling system under the condition of high temperature and high stress, which comprises an integrated control box, a control panel arranged on the outer wall of one side of the integrated control box and a hollow column vertically arranged on one side of the integrated control box, wherein an integrated data wire is arranged on the outer wall of one side of the integrated control box, the integrated control box is used for sending collaborative control instructions to all other modules, the control panel is used for providing a man-machine interaction interface so as to display the state of the system and receive the input instructions of operators, and the hollow column is used as a main body bearing structure and an internal channel of the system. The invention uses the cooling protection module as the laser emission module and the drilling tool module in the working state to provide a cooling passage so as to collect and guide out the waste heat generated by the heating component and avoid the defects of more heat dissipation points, low cooling efficiency.

Inventors

HE ZHIQIANG
Yang Zundong
He Kunchen
ZHOU XUEMIN
WANG YUNLONG
YANG LEI
ZHAO XIYUAN
TANG RUIFENG
Tan Yuanling
ZHANG YANG
LUO CHANGYUAN

Assignees

四川大学

Dates

Publication Date: 20260508
Application Date: 20260213

Claims (9)

1. The laser-drilling tool collaborative rock breaking drilling system under the high-temperature and high-stress condition is characterized by comprising an integrated control box (1), a control panel (2) arranged on the outer wall of one side of the integrated control box (1) and a hollow column (4) vertically arranged on one side of the integrated control box (1), wherein an integrated data wire (3) is arranged on the outer wall of one side of the integrated control box (1), the integrated control box (1) is used for sending collaborative control instructions to all other modules, the control panel (2) is used for providing a man-machine interaction interface so as to display the state of the system and receive input instructions of operators, the hollow column (4) is used as a main body bearing structure and an internal channel of the system, the integrated data wire (3) penetrates through an internal cavity of the hollow column (4), a cooling protection module (5) is arranged at the lower end of the hollow column (4), a laser emission module (7) is arranged in the central position of the cooling protection module (5) for mechanically breaking rocks, and the cooling protection modules (5) on the left side and the right side are both internally provided with laser emission modules (7) for weakening the laser to the laser-broken rocks to be used for high-energy rock breaking.
2. The laser-drilling tool collaborative rock breaking drilling system under the high-temperature and high-stress condition according to claim 1, wherein the integrated control box (1) is electrically connected with the laser emitting module (7), the drilling tool module (6) and the cooling protection module (5) through the integrated data wire (3) so as to acquire temperature, stress and running state information in real time, and dynamically adjust the emitting parameters of the laser emitting module (7), the mechanical action parameters of the drilling tool module (6) and the cooling strength of the cooling protection module (5) according to the temperature, the stress and the running state information.
3. The laser-drilling tool collaborative rock breaking drilling system under the high-temperature and high-stress condition according to claim 1, wherein the laser emitting directions of the two laser emitting modules (7) form an acute preset included angle with the mechanical axis of the drilling tool module (6), and the laser emitting directions are focused on the surface of rock to be broken in front of the drilling tool module (6) to form a laser pretreatment area.
4. The laser-drilling tool collaborative rock-breaking drilling system under the high-temperature and high-stress condition according to claim 1, wherein the laser emitting module (7) is configured to be capable of switching between a continuous output mode and a pulse output mode according to the instruction of the integrated control box (1) and dynamically adjusting the output power and the light spot scanning track.
5. The collaborative rock-breaking drilling system with a laser-drilling tool under high temperature and high stress conditions according to claim 1, wherein a laser generator is installed inside the hollow column (4), at least one energy-transmitting optical fiber is contained in the integrated data wire (3), one end of the energy-transmitting optical fiber is connected to the laser generator in the hollow column (4), and the other end is connected to a focusing output head of the laser emitting module (7) in the cooling protection module (5).
6. The laser-drilling tool collaborative rock breaking drilling system under the high-temperature and high-stress condition according to claim 1, wherein the cooling protection module (5) comprises a supporting shell (501) fixedly connected to the lower end of the hollow column (4), a partition plate (504) arranged at the bottom end of the supporting shell (501) and an outer conical closing shell (502) concentrically bolted and fixed at the bottom end of the partition plate (504), a spiral cooling pipe (506) is arranged at the position of a vertical central axis inside the outer conical closing shell (502), the drilling tool module (6) is positioned on the inner side of the spiral cooling pipe (506), a plane part (503) is arranged on the left inner wall and the right inner wall of the outer conical closing shell (502), a laser emission module (7) is arranged on the plane part (503), a liquid inlet joint (505) connected with a liquid inlet of the spiral cooling pipe (506) is arranged on one side of the top end of the partition plate (504), and a temperature sensor (507) electrically connected with the input end of the integrated control box (1) is arranged on the outer wall of one side of the outer conical closing shell (502).
7. The laser-drilling tool collaborative rock-breaking drilling system under the high-temperature and high-stress condition according to claim 6, wherein the supporting shell (501) and the partition plate (504) are internally provided with through holes (508), an electromagnetic valve is detachably arranged at the opening position of the lower end of the spiral cooling pipe (506), and the input end of the electromagnetic valve is electrically connected with the output end of the integrated control box (1).
8. The laser-drilling tool collaborative rock-breaking drilling system under the high-temperature and high-stress condition according to claim 6, wherein the drilling tool module (6) comprises a middle shell (601) coaxially arranged on the inner side of a spiral cooling pipe (506), a hydraulic motor (602) arranged at the lower end of the middle shell (601) and an end socket (603) fixedly connected with the lower end of an output shaft of the hydraulic motor (602) through an elastic sleeve pin type coupling, and a drill bit (604) is fixed at the lower end of the end socket (603).
9. The laser-drilling tool collaborative rock breaking drilling system under the high-temperature and high-stress condition according to claim 8, wherein the upper end of the middle shell (601) is fixedly connected with the bottom end of the partition plate (504).

Description

Laser-drilling tool collaborative rock breaking drilling system under high-temperature and high-stress condition Technical Field The invention relates to the technical field of drilling tools, in particular to a laser-drilling tool collaborative rock breaking drilling system under high-temperature and high-stress conditions. Background With the improvement of deep mineral resources (such as coal mines and metal mines with the burial depth exceeding 1000 m) and geothermal resource development requirements, the drilling operation is increasingly severe in the environment, on one hand, the stratum temperature is increased along with the increase of the burial depth, the environment temperature of a part of areas can reach 200-350 ℃, the tolerance upper limit of the conventional drilling equipment is far exceeded, on the other hand, the deep rock is under the action of the pressure of an overburden stratum, the stress generally reaches 50-150MPa, the rock hardness and brittleness are obviously improved, and the rock breaking difficulty is greatly increased. The current rock breaking technology is mainly divided into three types, namely single laser rock breaking, namely rock is locally softened or melted by laser irradiation, the rock strength is reduced, but a laser generator is difficult to dissipate heat under a high-temperature environment, power attenuation or element burning is easy to occur, laser irradiation is easy to cause melting and agglomeration of the rock surface, the subsequent rock breaking resistance is increased, single mechanical drilling tool is used for breaking the rock by mechanical cutting of a drilling tool bit, the wear rate of the tool bit under high stress is 3-5 times that of the conventional environment, a drill rod is easy to bend or break due to stress impact, the drilling efficiency is only 40-60% of that of the conventional environment, and the laser-drilling tool is used for breaking the rock cooperatively, namely a small amount of cooperative scheme is combined with the advantages of the two, but the laser generator is not designed for the high-temperature high-stress environment, namely the laser generator of the current scheme is of conventional model, no high-temperature heat dissipation or heat insulation structure is not suitable, and the element of the laser generator is burnt due to the high temperature or heat insulation structure under the high-temperature (more than 200 ℃) environment, and the fault rate is higher. Disclosure of Invention The invention aims to provide a laser-drilling tool collaborative rock breaking drilling system under the condition of high temperature and high stress so as to solve the problems in the prior art. The technical scheme includes that the laser-drilling tool collaborative rock breaking drilling system comprises an integrated control box, a control panel arranged on the outer wall of one side of the integrated control box and a hollow column vertically arranged on one side of the integrated control box, wherein an integrated data wire is arranged on the outer wall of one side of the integrated control box, the integrated control box is used for sending collaborative control instructions to all other modules, the control panel is used for providing a man-machine interaction interface so as to display the state of the system and receive input instructions of operators, the hollow column is used as a main body bearing structure and an internal channel of the system, the integrated data wire penetrates through an internal cavity of the hollow column, a cooling protection module is arranged at the lower end of the hollow column, a laser emission module is arranged in the cooling protection module at the central position in the cooling protection module, and the laser emission modules are used for emitting high-energy laser to the rock to be broken so as to thermally weaken the rock to be broken. Preferably, the integrated control box is electrically connected with the laser emission module, the drilling tool module and the cooling protection module through the integrated data wires, so as to acquire temperature, stress and running state information in real time, and dynamically adjust emission parameters of the laser emission module, mechanical action parameters of the drilling tool module and cooling strength of the cooling protection module according to the temperature, stress and running state information. Preferably, the laser emitting directions of the two laser emitting modules form an acute angle with the mechanical axis of the drilling tool module, and the laser emitting directions are focused on the surface of the rock to be crushed in front of the drilling tool module to form a laser pretreatment area. Preferably, the laser emission module is configured to switch between a continuous output mode and a pulse output mode according to the instruction of the integrated control box, and dynamically adjust the output power and the lig