In-situ thermal property measurement probe ejection device and working method

Abstract

The present invention relates to the field of geothermal resource development and utilization, and specifically relates to an in-situ thermophysical property measurement probe ejection device and a working method; the in-situ thermophysical property measurement probe ejection device comprises: a main body having a first chamber and a second chamber, a measuring probe being provided in the second chamber; a cover body being provided on the main body, the cover body and the main body together enclosing the first chamber, a gas charging mechanism being provided on the cover body, the gas charging mechanism being connected to an external gas source; a gas release mechanism connecting the first chamber and the second chamber, the gas release mechanism comprising a heating rod, a copper ring, and a heat insulating ring; the in-situ thermophysical property measurement probe ejection device has the characteristics of miniaturization, low power consumption, and high operational feasibility, proposes an unlocking form of melting the first heating melting part by heat conduction, and under the working condition that hard materials such as stones may exist in the soil layer, the size of the annular exhaust port can be changed to control the gas flow rate, thereby achieving slow actuation, reducing impact, and avoiding damage to the measurement due to excessive ejection speed.

Description

Technical Field

[0001] The present invention relates to the technical field of geothermal resource development and utilization, and in particular to an in-situ thermophysical property measurement probe ejection device and a working method. Background Art

[0002] As fossil energy is gradually depleted, the development of clean and renewable energy has received attention from countries around the world. Among them, geothermal resources have great potential to ensure the long-term supply of electricity and heat resources for human society.

[0003] Thermophysical parameters of soil layers are an important basis for the development and utilization of geothermal energy. Thermophysical parameter measurement probes are widely used in the measurement of thermophysical parameters of soil layers due to their simple process and low cost. Currently, there are two main ways for probes to penetrate the soil layer: one is to use the drill bit to cut the soil layer to drive the drill rod to drill downward, and then lower the probe into the target formation through the hollow drill rod; the other is to place the probe assembly into the conical probe, and then use a mechanical penetration device to press the probe into the soil layer, and then push the probe out through internal drive.

[0004] In the existing technology, the method of drilling holes on site and then placing probes is expensive, and the probes are large in size, which will cause a certain degree of disturbance to the soil, causing the loss of moisture in the soil, resulting in a certain degree of deviation between the measured value and the true value. Therefore, the size of the probe is usually limited to a certain range. Considering the working conditions where there are hard materials such as stones in the soil layer, it is very necessary for the probe to penetrate the soil layer slowly. Therefore, there is no probe pushing device in China that can achieve slow action. Summary of the Invention

[0005] Therefore, the technical problem to be solved by the present invention is to overcome the problem that the probe of the measuring device in the prior art is large in size, which will cause a certain degree of disturbance to the soil and cause the loss of moisture in the soil, so that the measured value has a certain degree of deviation from the true value. At the same time, it takes into account the possibility that hard materials such as stones may exist in the soil layer, and the situation that the probe may be damaged if the pushing speed is too fast, thereby providing an in-situ thermal physical property measurement probe pushing device and working method.

[0006] To solve the above technical problems, the present invention provides an in-situ thermophysical property measurement probe ejection device, comprising: a main body, the main body having a first chamber and a second chamber, the second chamber being provided with a measuring probe; a cover body, provided on the main body, the cover body and the main body together enclosing the first chamber, the cover body being provided with a gas charging mechanism, the gas charging mechanism being connected to an external gas source; a gas release mechanism, connecting the first chamber and the second chamber, the gas release mechanism comprising a heating rod, a copper ring, and a thermal insulation ring; the heating rod passes through the first chamber and the second chamber, the copper ring being provided in the second chamber and sleeved on the bottom of the heating rod, the thermal insulation ring being provided above the copper ring and sleeved on the heating rod, an exhaust port being provided between the thermal insulation ring and the copper ring, and a first heating and melting element being provided on the exhaust port, the first heating and melting element being used to isolate the first chamber from the second chamber; after gas enters the first chamber through the gas charging mechanism, it heats the first heating and melting element and enters the second chamber through the exhaust port, thereby pushing the measuring probe to move; and a strain gauge, provided on the outer wall of the main body.

[0007] Furthermore, the gas release mechanism also includes a fixing ring, which is arranged on the side wall of the first chamber, and the heating rod is sleeved in the fixing ring.

[0008] Furthermore, the gas release mechanism also includes a second heating and melting component, which is arranged on the insulation ring and the cavity wall of the second chamber.

[0009] Furthermore, the copper ring includes: a main body, a ring-shaped structure is provided on the main body, the heating rod passes through the ring-shaped structure and is connected to the main body, and thermal grease is provided at the connection between the copper ring and the heating rod; a mounting hole is provided on the main body and is located at one end away from the ring-shaped structure.

[0010] Furthermore, the gas release mechanism further includes: a wiring terminal, which is provided on the cover; and a connecting wire, one end of which is connected to the wiring terminal and the other end of which is connected to the heating rod.

[0011] Furthermore, the gas filling mechanism includes: an inflation channel, which is provided on the cover body, the inflation channel is located in the first chamber, and a first sealing member is provided at one end of the inflation channel; a connecting ring, which is sleeved on the outer wall of the inflation channel and connected to the bottom of the cover body; a high-pressure check plate, which is provided at the other end of the inflation channel, and a plurality of elastic members are provided between the high-pressure check plate and the connection; a second sealing member, which is provided on the high-pressure check plate, and the second sealing member is used to seal the inflation channel.

[0012] Furthermore, the first sealing member includes a bolt and a sealing ring, the sealing ring is sleeved on the bolt, and the bolt is connected to the inflation channel.

[0013] Furthermore, it also includes an inflation connector, which is provided on the cover body and is used to connect to an external air source.

[0014] Furthermore, a piston is provided in the second chamber, a connecting piece connects the piston and the copper ring, and the measuring probe is provided at the bottom of the piston.

[0015] The present invention also provides a working method of an in-situ thermal property measurement probe ejection device, comprising: connecting a gas filling mechanism with an external gas source, determining the amount of gas filled in the first chamber according to the value displayed by the strain gauge, and the gas entering the first chamber through the gas filling mechanism; after the gas filling amount reaches a predetermined standard, heating the copper ring with a heating rod, melting the first heating melting part between the insulation ring and the copper ring in the form of heat conduction, and exposing the exhaust port, and the gas in the first chamber enters the second chamber. As the gas in the second chamber increases, the pressure increases, and the gas pushes the measuring probe downward by utilizing the pressure difference between the first chamber and the second chamber, and inserts it into the soil to complete the measurement of thermal parameters.

[0016] The technical solution of the present invention has the following advantages:

[0017] 1. The in-situ thermophysical property measurement probe ejection device provided by the present invention comprises: a main body, the main body having a first chamber and a second chamber, the second chamber being provided with a measuring probe; a cover body provided on the main body, the cover body and the main body together enclosing the first chamber, the cover body being provided with a gas charging mechanism, the gas charging mechanism being connected to an external gas source; a gas release mechanism connecting the first chamber and the second chamber, the gas release mechanism comprising a heating rod, a copper ring, and a thermal insulation ring; the heating rod passes through the first chamber and the second chamber, the copper ring being provided in the second chamber and sleeved on the bottom of the heating rod, the thermal insulation ring being provided above the copper ring and sleeved on the heating rod, an exhaust port being provided between the thermal insulation ring and the copper ring, and a first heating and melting element being provided on the exhaust port, the first heating and melting element being used to isolate the first chamber from the second chamber; after gas enters the first chamber through the gas charging mechanism, it heats the first heating and melting element and enters the second chamber through the exhaust port, thereby pushing the measuring probe to move; a strain gauge provided on the outer wall of the main body.

[0018] The strain gauge is located on the outer wall of the main body, and the gas pressure is determined based on the change in the resistance value of the strain gauge caused by the stress generated by the gas pressure on the main body. That is, the amount of gas filled in the first chamber can be determined based on the value displayed by the strain gauge. By arranging a gas filling mechanism on the cover body, the gas filling mechanism is conveniently connected to the external gas source, so that the gas in the external gas source can smoothly enter the first chamber. At the same time, the gas release mechanism includes a heating rod, a copper ring, and an insulating ring. That is, the heating rod can be used to heat the copper ring, and the first heating and melting part between the insulating ring and the copper ring is melted in the form of heat conduction, exposing the exhaust port, so that the gas entering the first chamber can further enter the second chamber. As the gas in the second chamber increases, the pressure increases. The gas pushes the measuring probe downward by utilizing the pressure difference between the first chamber and the second chamber. This in-situ thermophysical property measurement probe ejection device is characterized by miniaturization, low power consumption, and high operational feasibility. It proposes an unlocking form of melting the first heated melting part by heat conduction. Taking into account the working conditions where hard materials such as stones may exist in the soil layer, the gas flow rate can be controlled by changing the size of the annular exhaust port, which can achieve slow actuation, reduce impact, and avoid damage to the measurement due to excessive ejection speed.

[0019] 2. In the in-situ thermophysical property measurement probe ejection device provided by the present invention, the gas release mechanism further includes a retaining ring disposed on the sidewall of the first chamber, and the heating rod is sleeved within the retaining ring. The retaining ring, in its fixed connection to the sidewall of the first chamber, facilitates securing the heating rod and prevents movement.

[0020] 3. In the in-situ thermophysical property measurement probe ejection device provided by the present invention, the gas release mechanism further includes a second heating and melting element disposed between the insulation ring and the wall of the second chamber. The provision of the second heating and melting element ensures the stable placement of the insulation ring; at the same time, the provision of the second heating and melting element also forms an exhaust port between the insulation ring and the wall of the second chamber. When it is necessary to increase the amount of gas delivered from the first chamber to the second chamber, the copper ring can be heated by a heating rod, and the second heating and melting element between the insulation ring and the wall of the second chamber can be melted by heat conduction.

[0021] This Summary is provided to introduce a selection of concepts in a simplified form that are further described below in the Detailed Description. This Summary is not intended to identify key features or essential features of the disclosure, nor is it intended to limit the scope of the disclosure. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the specific embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0023] Figure 1 A schematic structural diagram of the in-situ thermophysical property measurement probe ejection device provided by the present invention;

[0024] Figure 2 A schematic structural diagram of the cover of the in-situ thermal property measurement probe ejection device provided by the present invention;

[0025] Figure 3 A cross-sectional view of the in-situ thermal property measurement probe ejection device provided by the present invention;

[0026] Figure 4 A schematic structural diagram of the gas charging mechanism of the in-situ thermal property measurement probe ejection device provided by the present invention;

[0027] Figure 5 A schematic structural diagram of an inflatable joint of an in-situ thermophysical property measurement probe ejection device provided by the present invention;

[0028] Figure 6 A schematic structural diagram of a high-pressure check plate of an in-situ thermophysical property measurement probe ejection device provided by the present invention;

[0029] Figure 7 A schematic structural diagram of the gas release mechanism of the in-situ thermophysical property measurement probe ejection device provided by the present invention;

[0030] Figure 8 A schematic structural diagram of the thermal insulation ring of the in-situ thermal property measurement probe ejection device provided by the present invention;

[0031] Figure 9 This is a schematic structural diagram of the copper ring of the in-situ thermal property measurement probe ejection device provided by the present invention.

[0032] Description of reference numerals:

[0033] 1. Main body; 11. First chamber; 12. Second chamber;

[0034] 2. Measuring probe;

[0035] 3. Cover;

[0036] 4. Gas charging mechanism; 41. Inflating channel; 42. First sealing member; 421. Bolt; 422. Sealing ring; 43. Connecting ring; 44. High-pressure check plate; 441. Annular housing; 442. Protrusion; 443. Connecting block; 444. Through hole; 45. Elastic member; 46. Second sealing member; 47. Inflating connector;

[0037] 5. Gas release mechanism; 51. Heating rod; 52. Copper ring; 521. Main body; 522. Ring structure; 523. Mounting hole; 53. Insulation ring; 54. First heating and melting element; 55. Exhaust port; 56. Fixing ring; 57. Second heating and melting element; 58. Terminal block; 59. Connecting wire; 510. Thermal grease; 511. Connecting piece;

[0038] 6. Strain gauge;

[0039] 7. Piston;

[0040] 8. Cable. DETAILED DESCRIPTION

[0041] Hereinafter, only certain exemplary embodiments are briefly described. As will be appreciated by those skilled in the art, the described embodiments may be modified in various ways without departing from the spirit or scope of the present disclosure. Therefore, the drawings and description are to be considered as illustrative in nature and not restrictive.

[0042] In the description of the present disclosure, it should be understood that the terms "center," "longitudinal," "transverse," "length," "width," "thickness," "up," "down," "front," "back," "left," "right," "vertical," "horizontal," "top," "bottom," "inside," "outside," "clockwise," "counterclockwise," and the like, indicating positions or relationships, are based on the positions or relationships shown in the accompanying drawings and are intended solely for the purpose of facilitating the description of the present disclosure and simplifying the description. They do not indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation, and therefore should not be construed as limiting the present disclosure. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features indicated. Thus, features defined as "first" or "second" may explicitly or implicitly include one or more of the described features. In the description of the present disclosure, "plurality" means two or more, unless otherwise expressly and specifically defined.

[0043] In the description of this disclosure, it should be noted that, unless otherwise expressly specified or limited, the terms "installed," "connected," and "connected" should be understood broadly. For example, they can refer to fixed, removable, or integral connections; mechanical, electrical, or intercommunication connections; direct or indirect connections through an intermediary; and internal communication between two components or interaction between two components. Those skilled in the art will understand the specific meanings of these terms in this disclosure based on specific circumstances.

[0044] In this disclosure, unless otherwise expressly specified or limited, a first feature being "above" or "below" a second feature may include the first and second features being in direct contact, or may include the first and second features not being in direct contact but being in contact via another feature between them. Furthermore, a first feature being "above," "above," and "above" a second feature may include the first feature being directly above or diagonally above the second feature, or may simply mean that the first feature is at a higher level than the second feature. A first feature being "below," "below," and "below" a second feature may include the first feature being directly above or diagonally above the second feature, or may simply mean that the first feature is at a lower level than the second feature.

[0045] The disclosure below provides many different embodiments or examples for realizing different structures of the present disclosure. In order to simplify the disclosure of the present disclosure, the components and settings of specific examples are described below. Of course, they are merely examples and are not intended to limit the present disclosure. In addition, the present disclosure may repeat reference numbers and / or reference letters in different examples, and such repetition is for the purpose of simplicity and clarity and does not in itself indicate the relationship between the various embodiments and / or settings discussed. In addition, the present disclosure provides examples of various specific processes and materials, but those of ordinary skill in the art will appreciate the application of other processes and / or the use of other materials.

[0046] The preferred embodiments of the present disclosure are described below in conjunction with the accompanying drawings. It should be understood that the preferred embodiments described herein are only used to illustrate and explain the present disclosure, and are not used to limit the present disclosure.

[0047] See also Figures 1 to 9As shown, the present invention provides an in-situ thermal property measurement probe ejection device, comprising: a main body 1, the main body 1 having a first chamber 11 and a second chamber 12, wherein a measuring probe 2 is provided in the second chamber 12; a cover 3, provided on the main body 1, the cover 3 and the main body 1 together enclose the first chamber 11, the cover 3 is provided with a gas charging mechanism 4, the gas charging mechanism 4 is connected to an external gas source; a gas release mechanism 5, connecting the first chamber 11 and the second chamber 12, the gas release mechanism 5 comprising a heating rod 51, a copper ring 52, and a heat insulating ring 53; the heating rod 51 passes through the first chamber 11 and the second chamber 12, the copper ring 52 is provided in the second chamber 12 and is sleeved on the bottom of the heating rod 51. The insulation ring 53 is provided above the copper ring 52 and is sleeved on the heating rod 51. An exhaust port 55 is provided between the insulation ring 53 and the copper ring 52, and a first heating and melting component 54 is provided on the exhaust port 55. The first heating and melting component 54 is used to isolate the first chamber 11 and the second chamber 12; after the gas enters the first chamber 11 through the gas filling mechanism 4, it heats the first heating and melting component 54 and enters the second chamber 12 through the exhaust port 55, pushing the measuring probe 2 to move; the strain gauge 6 is provided on the outer wall of the main body 1.

[0048] The strain gauge 6 is located on the outer wall of the main body 1. The gas pressure is determined based on the change in the resistance value of the strain gauge 6 caused by the stress generated by the gas pressure on the main body. That is, the amount of gas filled in the first chamber 11 can be determined based on the value displayed by the strain gauge 6. By arranging a gas filling mechanism 4 on the cover body 3, it is convenient for the gas filling mechanism 4 to be connected to the external gas source, so that the gas in the external gas source can smoothly enter the first chamber 11. At the same time, the gas release mechanism 5 includes a heating rod 51, a copper ring 52, and an insulating ring 53. That is, the heating rod 51 can be used to heat the copper ring 52, and in the form of heat conduction, the first heating and melting member 54 between the insulating ring 53 and the copper ring 52 is melted, and the exhaust port 55 is exposed, so that the gas entering the first chamber 11 can further enter the second chamber 12. As the gas in the second chamber 12 increases, the pressure increases. By utilizing the pressure difference between the first chamber 11 and the second chamber 12, the gas pushes the measuring probe 2 downward. The in-situ thermophysical property measurement probe ejection device is characterized by miniaturization, low power consumption, and high operational feasibility. It proposes an unlocking form of melting the first heating melting part 54 by heat conduction. Taking into account the working conditions where hard materials such as stones may exist in the soil layer, the gas flow rate can be controlled by changing the size of the annular exhaust port 55, which can achieve slow actuation, reduce impact, and avoid damage to the measurement due to excessive ejection speed.

[0049] Among them, the size of the exhaust port 55 can be controlled by changing the size of the exhaust port 55, that is, the copper ring 52 is heated by the heating rod 51, and the degree of melting of the first heating melting part 54 is driven by heat conduction to ensure that the appropriate size of the exhaust port 55 can be obtained.

[0050] The heat-insulating ring 53 disposed at the upper end of the exhaust port 55 has the function of preventing the heating process from affecting the gas.

[0051] In some optional embodiments, the gas release mechanism 5 further includes a fixing ring 56, which is provided on the side wall of the first chamber 11, and the heating rod 51 is sleeved within the fixing ring 56. The provision of the fixing ring 56 and its fixed connection to the side wall of the first chamber 11 facilitate the fixing of the heating rod 51 and prevent the heating rod 51 from moving.

[0052] In some optional embodiments, the gas release mechanism 5 further includes a second heating and melting member 57, which is disposed between the insulation ring 53 and the wall of the second chamber 12. The provision of the second heating and melting member 57 ensures the stable placement of the insulation ring 53; at the same time, the provision of the second heating and melting member 57 also forms an exhaust port 55 between the insulation ring 53 and the wall of the second chamber 12; when it is necessary to increase the amount of gas delivered from the first chamber 11 to the second chamber 12, the copper ring 52 can be heated by the heating rod 51, and the second heating and melting member 57 between the insulation ring 53 and the wall of the second chamber 12 can be melted by heat conduction.

[0053] In this embodiment, the first heating and melting member 54 and the second heating and melting member 57 are both for melting solder.

[0054] In some optional embodiments, the copper ring 52 includes a main body 521 and an annular structure 522; wherein, the main body 521 is provided with an annular structure 522, and the main body 521 and the annular structure 522 are an integrally formed part. The copper ring 52 produced by integral molding can effectively increase the overall strength and rigidity of the copper ring 52, thereby ensuring the service life of the copper ring 52.

[0055] The heating rod 51 passes through the annular structure 522 and is connected to the main body 521. Thermal grease 510 is provided at the connection between the copper ring 52 and the heating rod 51. The provision of the thermal grease 510 can effectively increase the thermal conductivity of the heating rod 51 and improve the melting rate of the first heating melting part 54.

[0056] The mounting hole 523 is provided on the body 521 and is located at an end away from the annular structure 522 . The provision of the mounting hole 523 facilitates the connection between the copper ring 52 and the piston 7 .

[0057] In some optional embodiments, the gas release mechanism 5 further includes a wiring terminal 58 and a connecting wire 59; wherein, the wiring terminal 58 is provided on the cover body 3; in this embodiment, there are two wiring terminals 58; of course, they can also be set according to actual conditions.

[0058] One end of the connecting wire 59 is connected to the terminal block 58, and the other end is connected to the heating rod 51; the terminal block 58 is used to connect to an external device. Through the setting of the connecting wire 59, a power source is provided for the heating rod 51, and the electricity transmitted by the connecting wire 59 can be used to heat the heating rod 51.

[0059] In some optional embodiments, the gas charging mechanism 4 includes an air charging channel 41, a connecting ring 43, a first sealing member 42, a high-pressure check plate 44, and a second sealing member 46; wherein the air charging channel 41 is provided on the cover body 3, the air charging channel 41 is located in the first chamber 11, and a first sealing member 42 is provided at one end of the air charging channel 41;

[0060] In this embodiment, the inflation channel 41 is a tube body integrally formed with the cover body 3. The tube body is a hollow structure, and the gas enters the first chamber 11 through the hollow structure; after the first chamber 11 is filled with gas, the first sealing member 42 is used to seal the first chamber 11.

[0061] Specifically, the first sealing member 42 includes a bolt 421 and a sealing ring 422. The sealing ring 422 is sleeved onto the bolt 421. Meanwhile, the inner wall of the inflation channel 41 is provided with an internal thread, and the bolt 421 is threadedly connected to the inflation channel 41, thereby sealing the first chamber 11. Furthermore, the provision of the sealing ring 422 can fully ensure the sealing performance of the first chamber 11.

[0062] A sealing process may also be performed on the top of the bolt 421 , which is mainly used to assist in sealing.

[0063] A connecting ring 43 is sleeved on the outer wall of the inflation channel 41 and connected to the bottom of the cover body 3; a high-pressure check plate 44 is provided at the other end of the inflation channel 41, and a plurality of elastic members 45 are provided between the high-pressure check plate 44 and the connection; the connecting ring 43 and the high-pressure check plate 44 are connected via the elastic members 45. When gas is filled into the first chamber 11, the gas enters the first chamber 11 through the inflation channel 41. The pressure of the gas filling is greater than the elastic force of the elastic member 45, causing the elastic member 45 to change to a stretched state, thereby facilitating the entry of gas into the first chamber 11. When the gas in the first chamber 11 reaches a predetermined standard, the filling of gas into the first chamber 11 is stopped, and the high-pressure check plate 44 returns to its initial state under the action of the elastic member 45, i.e., blocking the inflation channel 41.

[0064] In this embodiment, there are four elastic members 45, and the elastic members 45 are spaced and evenly arranged along the outer wall of the inflation channel 41. Specifically, the elastic members 45 are tension springs.

[0065] At the same time, since a second sealing member 46 is provided on the high-pressure check plate 44, the second sealing member 46 is used to seal the inflation channel 41; the second sealing member 46 is also a sealing ring. Since there is a pressure difference between the first chamber 11 and the outside of the main body 1, the pressure in the first chamber 11 will generate outward pressure on the high-pressure check plate 44, further compressing the second sealing member 46, that is, blocking the inflation channel 41, avoiding gas leakage in the first chamber 11, and making the first chamber 11 have good sealing properties.

[0066] Among them, the high-pressure check plate 44 is an annular shell 441, and a protrusion 442 is provided in the middle of the annular shell 441, and a connecting block 443 is provided on the annular shell 441, and the connecting block 443 corresponds to the inflation channel 41; and a through hole 444 is provided on the annular shell 441, and the through hole 444 is used to connect the elastic member 45.

[0067] The second seal 46 is sleeved within the annular housing 441, with the protrusion 442 positioned corresponding to the inflation channel 41. The diameter of the protrusion 442 is larger than that of the inflation channel 41, thus preventing gas leakage. The combination of the second seal 46 and the first seal 42 creates a secondary seal, ensuring the sealing performance of the first chamber 11.

[0068] In some optional embodiments, the in-situ thermophysical property measurement probe ejection device further includes an inflation connector 47, which is provided on the cover 3 when the first chamber 11 needs to be inflated. The inflation connector 47 is used to connect to an external gas source, so that gas from the external gas source can enter the first chamber 11 through the inflation connector 47. This process is completed on the ground.

[0069] After the first chamber 11 is inflated, the inflation joint 47 is removed and the inflation channel 41 is sealed using the first sealing member 42 .

[0070] In some optional embodiments, a piston 7 is disposed within the second chamber 12, a connector 511 connects the piston 7 and the copper ring 52, and the measurement probe 2 is disposed at the bottom of the piston 7. Specifically, the connector 511 connects the piston 7 and the copper ring 52 through the mounting hole 523 on the copper ring 52, and utilizes the gas within the second chamber 12 to propel the piston 7 and the measurement probe 2 downward, thereby inserting the measurement probe 2 into the soil to complete the measurement of thermal parameters.

[0071] The piston 7 and the connecting piece 511 are both made of insulating and heat-insulating materials to prevent heat conduction from affecting the temperature measurement of the temperature measuring probe 2.

[0072] In this embodiment, the connecting member 511 is a bolt.

[0073] A cable 8 is provided on the main body 1 , and the cable 8 is connected to the measuring probe 2 .

[0074] The present invention also provides a working method of an in-situ thermal property measurement probe ejection device, comprising: connecting a gas filling mechanism 4 with an external gas source, determining the amount of gas filled in the first chamber 11 according to the value displayed by the strain gauge 6, and the gas entering the first chamber 11 through the gas filling mechanism 4; after the gas filling amount reaches a predetermined standard, heating the copper ring 52 by using a heating rod 51, and melting the first heating melting part 54 between the insulation ring 53 and the copper ring 52 in the form of heat conduction, and exposing the exhaust port 55, so that the gas in the first chamber 11 enters the second chamber 12, and as the gas in the second chamber 12 increases, the pressure increases, and using the pressure difference between the first chamber 11 and the second chamber 12, the gas pushes the measuring probe 2 downward, inserts it into the soil to complete the measurement of thermal parameters.

[0075] The specific working method is as follows: first, the inflation connector 47 is connected to the external gas source through the gas pipeline, and inflation is implemented. During inflation, the external gas source applies a certain external force to the inflation connector 47, and the pressure of the gas injection is greater than the elastic force of the elastic member 45, so that the elastic member 45 is transformed into a stretched state, so that the lower end of the inflation connector 47 pushes open the high-pressure check plate 44, that is, a certain gap is formed between the inflation channel 41 and the high-pressure check plate 44, and then the amount of gas injected is determined according to the value displayed by the strain gauge 6; after inflation is completed, the external force is stopped, and the high-pressure check plate 44 returns to its initial state under the action of the elastic member 45, that is, the inflation channel 41 is blocked, and since there is a pressure difference between the first chamber 11 and the outside of the main body 1, the pressure in the first chamber 11 is It will generate outward pressure on the high-pressure check plate 44, further compressing the second sealing member 46, that is, blocking the inflation channel 41. The above process is completed at the ground stage; a hole is drilled in the measurement test area in the form of drilling, and then the in-situ thermal physical property measurement probe ejection device is lowered to the target position through the hollow drill rod, and then the heating rod 51 starts to work, and the copper ring 52 is heated by the heating rod 51, and the first heating melting member 54 between the insulation ring 53 and the copper ring 52 is melted in the form of heat conduction, and the exhaust port 55 is exposed, and the gas in the first chamber 11 enters the second chamber 12. As the amount of gas increases, the pressure in the second chamber 12 gradually increases, and the piston 7 starts to push the measurement probe 2 downward and inserts it into the soil to complete the measurement of thermal parameters.

[0076] Obviously, the above embodiments are merely examples for clarity of explanation and are not intended to limit the implementation methods. Those skilled in the art will readily appreciate that other variations or modifications based on the above descriptions are possible. It is not necessary and impossible to enumerate all implementation methods here. Obvious variations or modifications arising therefrom remain within the scope of protection of the present invention.

Claims

1. An in-situ thermophysical property measurement probe ejection device, characterized in that: include: A main body (1), the main body (1) having a first chamber (11) and a second chamber (12), wherein a measuring probe (2) is provided in the second chamber (12); The cover body (3) is provided on the main body (1), and the cover body (3) and the main body (1) together enclose a first chamber (11). The cover body (3) is provided with a gas charging mechanism (4), and the gas charging mechanism (4) is connected to an external gas source; A gas release mechanism (5) is connected to the first chamber (11) and the second chamber (12), and the gas release mechanism (5) includes a heating rod (51), a copper ring (52), and a heat-insulating ring (53); the heating rod (51) passes through the first chamber (11) and the second chamber (12); the copper ring (52) is arranged in the second chamber (12) and is sleeved on the bottom of the heating rod (51); the heat-insulating ring (53) is arranged above the copper ring (52) and is sleeved on the heating rod (51); an exhaust port (55) is provided between the heat-insulating ring (53) and the copper ring (52), and a first heating and melting member (54) is provided on the exhaust port (55); the first heating and melting member (54) is used to isolate the first chamber (11) and the second chamber (12); After the gas enters the first chamber (11) through the gas filling mechanism (4), the gas heats the first heating and melting member (54) and enters the second chamber (12) through the exhaust port (55), pushing the measuring probe (2) to move; A strain gauge (6) is provided on the outer wall of the main body (1); The gas release mechanism (5) further comprises a fixing ring (56), the fixing ring (56) being arranged on the side wall of the first chamber (11), and the heating rod (51) being sleeved inside the fixing ring (56); The gas release mechanism (5) further includes a second heating and melting component (57), and the second heating and melting component (57) is provided on the cavity wall between the heat-insulating ring (53) and the second cavity (12); The copper ring (52) comprises: A body (521), wherein an annular structure (522) is provided on the body (521), a heating rod (51) passes through the annular structure (522) and is connected to the body (521), and a thermal conductive silicone grease (510) is provided at the connection between the copper ring (52) and the heating rod (51); A mounting hole (523) is provided on the body (521) and is located at an end away from the annular structure (522); The gas release mechanism (5) further comprises: A connection terminal (58), the connection terminal (58) is provided on the cover (3); A connecting wire (59), one end of which is connected to the terminal block (58) and the other end of which is connected to the heating rod (51); The gas charging mechanism (4) comprises: An inflation channel (41) is provided on the cover body (3), the inflation channel (41) is located in the first chamber (11), and a first sealing member (42) is provided at one end of the inflation channel (41); A connecting ring (43) is sleeved on the outer wall of the inflation channel (41) and connected to the bottom of the cover body (3); A high-pressure check plate (44) is provided at the other end of the inflation channel (41), and a plurality of elastic members (45) are provided between the high-pressure check plate (44) and the connecting ring (43); The second sealing member (46) is provided on the high-pressure check plate (44), and the second sealing member (46) is used to seal the inflation channel (41).

2. The in-situ thermophysical property measurement probe ejection device according to claim 1, characterized in that: The first sealing member (42) comprises a bolt (421) and a sealing ring (422). The sealing ring (422) is sleeved on the bolt (421), and the bolt (421) is connected to the inflation channel (41).

3. The in-situ thermophysical property measurement probe ejection device according to claim 2, characterized in that: It also includes an inflation connector (47), which is provided on the cover body (3) and is used to connect to an external air source.

4. The in-situ thermophysical property measurement probe ejection device according to any one of claims 1 to 3, characterized in that: A piston (7) is provided in the second chamber (12), a connecting piece connects the piston (7) and the copper ring (52), and a measuring probe (2) is provided at the bottom of the piston (7).

5. A method for operating the in-situ thermophysical property measurement probe ejection device according to claim 4, characterized in that: include: The gas filling mechanism (4) is connected to an external gas source, and the amount of gas filled in the first chamber (11) is determined according to the value displayed by the strain gauge (6). The gas enters the first chamber (11) through the gas filling mechanism (4); after the amount of gas filled reaches a predetermined standard, the copper ring (52) is heated by the heating rod (51), and the first heating melting member (54) between the heat insulating ring (53) and the copper ring (52) is melted in the form of heat conduction, and the exhaust port (55) is exposed. The gas in the first chamber (11) enters the second chamber (12). As the gas in the second chamber (12) increases, the pressure increases. By utilizing the pressure difference between the first chamber (11) and the second chamber (12), the gas pushes the measuring probe (2) downward and inserts it into the soil to complete the measurement of thermal parameters.

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