Laser microwave combined rock cracking experimental device

Abstract

The utility model particularly relates to a laser and microwave combined rock cracking experiment device, and belongs to the field of rock cracking experiment devices. The laser and microwave combined rock cracking experiment device comprises an experiment cavity, a bearing part, a laser component and a microwave component. The bearing part is accommodated in the experiment cavity and is used for placing a sample; the laser part is used for emitting laser to irradiate a sample, the microwave part is used for emitting microwaves to irradiate the sample, and the laser part and the microwave part are respectively arranged on different sides of the experiment cavity. The microwave component and the laser component jointly act on the sample, so that an experimenter can conveniently research mechanism changes of the sample in a microwave and laser coupled environment, and theoretical and data support is provided for subsequent research.

Description

Technical Field

[0001] The utility model belongs to the field of rock fracturing experimental devices, and particularly relates to a laser-microwave combined rock fracturing experimental device. Background Art

[0002] Traditional rock breaking methods such as blasting and mechanical breaking often have problems such as high energy consumption, large vibration, and significant impact on the surrounding environment. As non-contact energy transfer methods, laser and microwave technologies can achieve precise heating and local damage of the rock surface with their unique penetrability, focusing ability, and thermal effect. Therefore, applying laser and microwave technologies to the drilling technology field can significantly improve the drilling efficiency. In summary, how to study the mechanism of rock fracturing under the laser-microwave coupling effect and then provide theoretical and data support for the laser-microwave combined rock breaking technology is a technical problem that needs to be solved urgently. Content of the Utility Model

[0003] The purpose of the utility model is to provide a laser-microwave combined rock fracturing experimental device, which can be used to study the mechanism of rock fracturing under the laser-microwave coupling effect.

[0004] To achieve the above-mentioned utility model purpose, the technical solution adopted by the utility model is: The embodiment of the present application provides a laser-microwave combined rock fracturing experimental device, including an experimental chamber, a supporting part, a laser component, and a microwave component. The supporting part is accommodated in the experimental chamber and is used to place the specimen. The laser component is used to emit laser light to irradiate the specimen, and the microwave component is used to emit microwave radiation to the specimen. The laser component and the microwave component are respectively arranged on different sides of the experimental chamber.

[0005] In some embodiments, the connection part between the laser component and the experimental chamber is arranged at the top of the experimental chamber, and the connection part between the microwave component and the experimental chamber is arranged at the side of the experimental chamber.

[0006] In some embodiments, the microwave component includes a microwave head and a microwave duct, and the microwave duct is connected to the microwave head and the experimental chamber.

[0007] In some embodiments, there are multiple connection parts between the microwave duct and the experimental chamber.

[0008] In some embodiments, the microwave head is provided with a water load.

[0009] In some embodiments, the microwave duct is provided with a three-pin tuner.

[0010] In some embodiments, the experimental chamber is provided with a camera component for photographing the specimen.

[0011] In some embodiments, the experimental chamber is further provided with a temperature measuring component.

[0012] In some embodiments, a humidistat is further included, and the humidifying channel and the dehumidifying channel of the humidistat are respectively communicated with the experimental chamber.

[0013] In some embodiments, an air chamber is further included, and the air chamber is communicated with the humidifying channel.

[0014] The utility model has the following beneficial effects:

[0015] By the combined action of the microwave component and the laser component on the specimen, it is convenient for the experimenter to study the mechanism changes of the specimen in the environment of microwave and laser coupling, providing theoretical and data support for subsequent research. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a schematic structural diagram of the experimental device for laser-microwave combined rock fracture of the utility model;

[0017] Figure 2 is Figure 1 an enlarged view of part A of

[0018] Reference numerals in the drawings: 1 - experimental chamber, 2 - supporting part, 3 - specimen, 4 - laser component, 5 - imaging component, 6 - temperature measuring component, 7 - microwave component, 8 - microwave duct, 9 - microwave head, 10 - three-pin tuner, 11 - waveguide power meter, 12 - humidistat, 13 - humidifying channel, 14 - dehumidifying channel, 15 - air chamber, 16 - connector, 17 - clamp, 18 - limiting groove, 19 - connection hole, 20 - communication channel. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0019] The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. If not specifically specified, the technical means used in the embodiments are conventional means well known to those skilled in the art.

[0020] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by the terms "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing the present utility model, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present utility model.

[0021] An embodiment of the present application provides a laser-microwave combined rock fracturing experimental device, which includes an experimental chamber 1, a supporting part 2, a laser component 4, and a microwave component 7. The supporting part 2 is accommodated in the experimental chamber 1 and is used to place a specimen 3. The laser component 4 is used to emit laser light to irradiate the specimen 3, and the microwave component 7 is used to emit microwave radiation to the specimen 3. The laser component 4 and the microwave component 7 are respectively arranged on different sides of the experimental chamber 1.

[0022] The experimental chamber 1 is used to provide a chamber for laser and microwave coupling tests on the specimen 3. The wall surface of the experimental chamber 1 can be made of a transparent material, which is convenient for experimental personnel to observe the situation inside the experimental chamber 1.

[0023] The supporting part 2 can be a high-temperature weighing sensor. The specimen 3 is placed on the measuring end of the high-temperature weighing sensor, and the high-temperature weighing sensor can measure the mass change of the specimen 3 caused by temperature changes. The structure and working principle of the high-temperature weighing sensor are well-known to those skilled in the art. Generally speaking, by electrically connecting the high-temperature weighing sensor to a processor, the high-temperature weighing sensor can weigh the weight of the specimen 3 and transmit the value to the processor.

[0024] The structure and working principle of the laser component 4 are well-known to those skilled in the art. Generally speaking, the laser component 4 includes a laser and a laser head. The laser generated by the laser is transmitted to the laser head through an optical fiber, and the laser is focused by the laser head and then irradiated on the specimen 3.

[0025] The working principle of the microwave component 7 is well-known to those skilled in the art. Generally speaking, the microwave component 7 includes a microwave head 9. The microwave head 9 generates microwaves, which are transmitted to the experimental chamber 1 through a microwave waveguide 8, so that the microwaves can be radiated into the experimental chamber 1.

[0026] By the combined action of the microwave component 7 and the laser component 4 on the specimen 3, it is convenient for experimental personnel to study the mechanism changes of the specimen 3 in the environment of microwave and laser coupling, providing theoretical and data support for subsequent research.

[0027] The laser component 4 and the microwave component 7 are respectively arranged on different sides of the experimental cavity 1, which enables experimenters to control environmental variables and conduct various experiments without replacing the specimen 3. For example, the experimenter can only turn on the laser component 4 and turn off the microwave component 7. The laser component 4 generates laser light that irradiates the specimen 3, facilitating the study of the mechanism changes of the specimen 3 in the laser environment. Further, the experimenter can only turn on the microwave component 7 and turn off the laser component 4. The microwave component 7 generates microwave radiation on different sides of the specimen 3, facilitating the study of the mechanism changes of the experiment under microwave radiation. And because the microwave radiation is on different sides of the specimen 3, it can reduce the risk of errors in the microwave experiment results caused by the influence of the laser on the specimen 3. Furthermore, the experimenter can turn on both the laser component 4 and the microwave component 7 simultaneously, facilitating the study of the mechanism changes of the specimen 3 in the laser and microwave coupling environment.

[0028] In some embodiments, the connection between the laser component 4 and the experimental cavity 1 is arranged at the top of the experimental cavity 1, and the connection between the microwave component 7 and the experimental cavity 1 is arranged at the side of the experimental cavity 1.

[0029] The laser component 4 is arranged at the top of the experimental cavity 1, and the laser irradiates the surface of the specimen 3 from the top, which is convenient for experimenters to directly observe whether the laser beam irradiates the target area. Moreover, the specimen 3 can be a cylindrical structure, and the curved side wall of the cylindrical specimen 3 can increase the radiation range of the microwave component 7. If the laser irradiates the side wall surface of the specimen 3, due to the curved side wall surface of the specimen 3, there may be errors in the laser irradiation area. Therefore, the laser is irradiated on the flat top of the specimen 3 so that the laser can accurately irradiate the target area.

[0030] The connection between the microwave component 7 and the experimental cavity 1 refers to the place where the microwave radiates into the experimental cavity 1. In the embodiment where the laser component 4 includes a laser head, the connection between the laser component 4 and the experimental cavity 1 refers to the connection between the laser head and the experimental cavity 1.

[0031] The connection between the microwave component 7 and the experimental cavity 1 is arranged on the side wall surface of the experimental cavity 1, which is convenient for setting the number of connections between the microwave component 7 and the experimental cavity 1 as needed. For example, multiple connections can be arranged at intervals in the circumferential direction of the experimental cavity 1 so that the circumferential direction of the specimen 3 can be irradiated.

[0032] In some embodiments, the microwave component 7 includes a microwave head 9 and a microwave duct 8, and the microwave duct 8 is connected between the microwave head 9 and the experimental cavity 1.

[0033] The principle of the microwave head 9 generating microwaves is well-known to those skilled in the art and will not be elaborated here.

[0034] The microwaves generated by the microwave head 9 are transmitted to the experimental cavity 1 through the microwave duct 8, enabling the experiment to be in a microwave radiation environment.

[0035] The experimental chamber 1 may be provided with a communication channel 20 which is internally communicated with the experimental chamber 1. The communication channel 20 is provided with a flange adapted to the microwave waveguide 8, so that the microwave waveguide 8 can be hermetically communicated with the experimental chamber 1.

[0036] In the embodiment of the present application, the connection part between the microwave component 7 and the experimental chamber 1 is also the connection part between the microwave waveguide 8 and the experimental chamber 1.

[0037] In some embodiments, the connection parts between the microwave waveguide 8 and the experimental chamber 1 are provided in plurality, so that microwaves can be radiated into the experimental chamber 1 from different directions.

[0038] The plurality of connection parts are arranged circumferentially around the experimental chamber 1. For example, in the embodiment of the present application, the connection parts can be arranged as two, three or four.

[0039] In the embodiment of the present application, the microwave waveguide 8 may include a straight waveguide and a plurality of bent waveguides. The straight waveguide is connected to the microwave head 9, and the bent waveguides are communicated with the output end of the straight waveguide. The plurality of bent waveguides are connected to different sides of the experimental chamber 1, so that the microwaves generated by the straight waveguide can be radiated into the experimental chamber 1 from multiple directions.

[0040] In some embodiments, the microwave head 9 is provided with a water load.

[0041] The water load can absorb microwave energy to prevent excessive transmission or loss of energy. Moreover, the water load can adjust the impedance of the microwave signal, reduce signal reflection and interference, and ensure effective signal transmission.

[0042] The structure and working principle of the water load are well-known to those skilled in the art and will not be elaborated here.

[0043] In some embodiments, the microwave waveguide 8 is provided with a three-pin tuner 10.

[0044] By means of the three-pin tuner 10, the generation of reflected waves can be reduced, and the microwave energy can be more effectively transmitted to the experimental chamber 1.

[0045] The structure and working principle of the three-pin tuner 10 are well-known to those skilled in the art. Generally speaking, by adjusting the depth of each pin in the microwave waveguide 8, the three-pin tuner 10 can achieve impedance matching and reduce the generation of reflected waves.

[0046] In some embodiments, the microwave waveguide 8 is further provided with a waveguide power meter 11.

[0047] The waveguide power meter 11 facilitates the experimenter to understand the actual output power and reflected power of the microwave head 9.

[0048] The structure and working principle of the waveguide power meter 11 are well-known to those skilled in the art and will not be elaborated here.

[0049] In some embodiments, the experimental chamber 1 is provided with a camera component 5 for photographing the specimen 3.

[0050] The camera component 5 facilitates the experimenter to photograph and record the specimen 3, and is convenient for recording the changes of the specimen 3. The camera component 5 can be an industrial camera.

[0051] In some embodiments, the experimental chamber 1 is further provided with a temperature measuring component 6.

[0052] The temperature measuring component 6 facilitates the experimenter to understand the temperature in the experimental chamber 1. Generally speaking, the temperature measuring component 6 can include a temperature measuring sensor, which is arranged in the experimental chamber 1 and electrically connected to the processor, so that the temperature measuring sensor can measure the temperature and transmit the temperature to the processor.

[0053] It should be noted that the specific circuits and measurement principles for the processor to control the temperature measuring sensor to measure the temperature and control the high-temperature weighing sensor to measure the weight are well-known to those skilled in the art and will not be elaborated here. Further, the operation of the laser component 4 and the microwave component 7 can also be controlled by the processor. The specific circuits and principles for the processor to control the laser component 4 and the microwave component 7 to operate are well-known to those skilled in the art and will not be elaborated here.

[0054] In some embodiments, the camera component 5 and the temperature measuring component 6 can be arranged corresponding to the microwave component 7 and the laser component 4. That is, the camera component 5 and the temperature measuring component 6 are arranged at the laser component 4, and the camera component 5 and the temperature measuring component 6 are also arranged at the connection between the microwave component 7 and the experimental chamber 1, which is convenient for accurately observing the influence of microwaves and lasers on the specimen 3.

[0055] In some embodiments, a humidistat 12 is further included. The humidifying channel 13 and the dehumidifying channel 14 of the humidistat 12 are respectively communicated with the experimental chamber 1.

[0056] The humidistat 12 can control the humidity in the experimental chamber 1, and thus facilitate the regulation of the environmental conditions of the specimen 3.

[0057] The structure and working principle of the humidistat 12 are well-known to those skilled in the art. Generally speaking, the humidistat 12 includes a humidifying channel 13 and a dehumidifying channel 14. When the humidistat 12 works, steam can be input into the experimental chamber 1 through the humidifying channel 13 to increase the humidity. On the contrary, the air in the experimental chamber 1 can be extracted through the dehumidifying channel 14 to reduce the humidity.

[0058] In some embodiments, the experimental chamber 1 can also be provided with a three-dimensional scanning device to scan and record the volume of the specimen 3.

[0059] In some embodiments, it further includes an air cavity 15, and the air cavity 15 is communicated with the humidification channel 13.

[0060] The air cavity 15 is used to accommodate experimental gases, facilitating the mechanism changes of the experimental specimen 3 in different gas environments. For example, the air cavity 15 can be used to accommodate ammonia, argon, helium, carbon dioxide or other inert gases.

[0061] The air cavity 15 is communicated with the humidification channel 13, so that the gas in the air cavity 15 can be input into the experimental cavity 1 through the humidification channel 13, reducing the number of holes to be opened in the experimental cavity 1 and increasing the sealing performance of the experimental cavity 1.

[0062] In the embodiments of the present application, the humidification channel 13 and the dehumidification channel 14 can be communicated with the experimental cavity 1 through the following structure: The experimental cavity 1 can be provided with a connection hole 19 and a connector 16. The connector 16 is inserted into the connection hole 19 and is threadedly connected with the connection hole 19, ensuring the sealing performance between the connector 16 and the experimental cavity 1 while enabling the connector 16 to be detachably connected to the experimental cavity 1. The connector 16 is partially arranged outside the experimental cavity 1, and the connector 16 is inserted into the humidification channel 13 from the port of the humidification channel 13, so that the humidification channel 13 can be communicated with the connector 16, and further the humidification channel 13 can be communicated with the experimental cavity 1.

[0063] A clamp 17 can be arranged on the outer peripheral wall of the connector 16. When the humidification channel 13 is sleeved on the outer peripheral wall of the connector 16, the clamp 17 is sleeved on the outer peripheral wall of the humidification channel 13, so that the humidification channel 13 can be fixed to the connector 16.

[0064] A limiting groove 18 can also be circumferentially arranged on the outer peripheral wall of the connector 16, and the clamp 17 is arranged around the circumference of the limiting groove 18. The advantages of such an arrangement are as follows: on the one hand, it reduces the risk of the clamp 17 detaching from the connector 16 and improves the fixing reliability of the humidification channel 13. On the other hand, the clamp 17 can partially tighten the humidification channel 13, so that the humidification channel 13 is tightened into the limiting groove 18, increasing the sealing performance between the humidification channel 13 and the connection channel.

[0065] The connection mode of the dehumidification channel 14 and the connector 16 is the same as that of the humidification channel 13 and the connector 16.

[0066] The above embodiments only describe the preferred modes of the present invention, rather than limiting the scope of the present invention. Without departing from the design spirit of the present invention, various deformations, variations, modifications and substitutions made by those of ordinary skill in the art to the technical solutions of the present invention shall all fall within the protection scope determined by the claims of the present invention.

Claims

1. A laser-microwave combined rock fracturing experimental device, characterized in that: include: An experimental chamber (1); a supporting portion (2), received in the experimental chamber (1) and used for placing a sample (3); A laser component (4) for emitting laser light to irradiate the sample (3); The microwave component (7) is used to emit microwave radiation to the sample (3), and the laser component (4) and the microwave component (7) are respectively arranged on different sides of the experimental cavity (1).

2. The laser-microwave combined rock fracturing experimental device according to claim 1 is characterized in that: The connection point between the laser component (4) and the experimental cavity (1) is arranged at the top of the experimental cavity (1), and the connection point between the microwave component (7) and the experimental cavity (1) is arranged at the side of the experimental cavity (1).

3. The laser-microwave combined rock fracturing experimental device according to claim 1 is characterized in that: The microwave component (7) comprises a microwave head (9) and a microwave conduit (8), and the microwave conduit (8) is connected to the microwave head (9) and the experimental cavity (1).

4. The laser-microwave combined rock fracturing experimental device according to claim 3 is characterized in that: There are multiple connection points between the microwave guide tube (8) and the experimental cavity (1).

5. The laser-microwave combined rock fracturing experimental device according to claim 3 is characterized in that: The microwave head (9) is provided with a water load.

6. The laser-microwave combined rock fracturing experimental device according to claim 3 is characterized in that: The microwave duct (8) is provided with a three-pin adapter (10).

7. The laser-microwave combined rock fracturing experimental device according to claim 1 is characterized in that: The experimental chamber (1) is provided with a camera component (5) for photographing the sample (3).

8. The laser-microwave combined rock fracturing experimental device according to claim 1 is characterized in that: The experimental chamber (1) is also provided with a temperature measuring component (6).

9. The laser-microwave combined rock fracturing experimental device according to claim 1 is characterized in that: It also comprises a humidifier (12), wherein a humidification channel (13) and a dehumidification channel (14) of the humidifier (12) are respectively connected to the experimental chamber (1).

10. The laser-microwave combined rock fracturing experimental device according to claim 9, characterized in that: It also comprises an air cavity (15), wherein the air cavity (15) is in communication with the humidification channel (13).

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