Deep in-situ high-temperature and ultrahigh-pressure environment reconstruction system

Abstract

The invention relates to the technical field of in-situ environment reconstruction, and particularly provides a deep in-situ high-temperature and ultrahigh-pressure environment reconstruction system which comprises a shifting cabin, the shifting cabin comprises a pressure cavity and a temperature control cavity, the pressure cavity is coated with the temperature control cavity, and the temperature control cavity is communicated with the shifting cabin; a pressure sensor and a temperature sensor are arranged in the pressure cavity, the pressure cavity is filled with a liquid medium, and a heating structure is arranged in the temperature control cavity; the push rod is provided with a pressure piston in the pressure cavity; the control part is electrically connected with the heating structure, the push rod, the pressure sensor and the temperature sensor; according to the invention, the deep in-situ high-temperature and ultrahigh-pressure environment can be reconstructed, and an environmental basis is provided for researching the in-situ problem of deep rock mechanics.

Description

Technical Field

[0001] The present invention relates to the technical field of in-situ environment reconstruction, and particularly to a deep in-situ high-temperature and ultra-high-pressure environment reconstruction system. Background Art

[0002] Studying the "in-situ" problems of deep rock mechanics is the theoretical basis for exploring deep resources. The key lies in obtaining a true-fidelity core under the deep in-situ environment and conducting true-fidelity tests and analyses in the in-situ state. The deep in-situ high-temperature and ultra-high-pressure environment reconstruction system is an important system for realizing true-fidelity testing of deep in-situ cores.

[0003] At present, the in-situ environment reconstruction systems developed by research institutions at home and abroad can only simulate and construct in-situ environments at relatively low temperatures and pressures, with poor accuracy in reconstructing the target temperature and pressure environments, and are unable to reconstruct the deep in-situ high-temperature and ultra-high-pressure environment up to 150°C and 140 MPa. Therefore, this application proposes a deep in-situ high-temperature and ultra-high-pressure environment reconstruction system. Summary of the Invention

[0004] The purpose of the present invention is to provide a deep in-situ high-temperature and ultra-high-pressure environment reconstruction system to solve the problem that the current in-situ environment reconstruction systems cannot reconstruct the deep in-situ high-temperature and ultra-high-pressure environment.

[0005] To achieve the above purpose, the present invention provides the following technical solutions:

[0006] A deep in-situ high-temperature and ultra-high-pressure environment reconstruction system, the reconstruction system includes:

[0007] A displacement chamber, the displacement chamber includes a pressure chamber and a temperature control chamber. The temperature control chamber is coated outside the pressure chamber, and the pressure chamber and the temperature control chamber are isolated. A pressure sensor and a temperature sensor are arranged inside the pressure chamber to respectively obtain the pressure and temperature inside the pressure chamber. The pressure chamber is filled with a liquid medium, and a heating structure is arranged inside the temperature control chamber to realize the temperature increase of the liquid medium inside the pressure chamber;

[0008] A push rod, a pressure piston is arranged on the push rod inside the pressure chamber, and the push rod pushes the pressure piston to slide inside the pressure chamber to realize the pressure increase inside the pressure chamber;

[0009] A control unit, the control unit is electrically connected to the heating structure, the push rod, the pressure sensor and the temperature sensor. The control unit controls the heating structure to increase the temperature and stops heating after the temperature sensor detects that the temperature inside the liquid medium reaches a preset temperature value. The control unit controls the push rod to push the pressure piston to slide inside the pressure chamber and controls the pressure piston to stop moving after the pressure sensor detects that the pressure inside the pressure chamber reaches a preset pressure value.

[0010] Further, the control unit controls the heating structure to increase the temperature step by step, and the pressure in the pressure chamber increases in a stepwise manner.

[0011] Further, the displacement chamber includes:

[0012] A pressure shell that forms a pressure chamber;

[0013] A temperature control shell that is hermetically connected to the outside of the pressure shell, and the temperature control shell and the pressure shell enclose a temperature control chamber.

[0014] Further, the liquid medium is water.

[0015] Further, the reconstruction system further includes:

[0016] A switching valve that is fixedly connected to one end of the displacement chamber away from the push rod;

[0017] A core extraction chamber having the same structure as the displacement chamber, one end of the core extraction chamber is communicated with the switching valve, and the end of the core extraction chamber away from the switching valve is sealed;

[0018] A displacement mechanism that is fixedly connected to the core extraction chamber and is used to control the movement of the core extraction chamber.

[0019] Further, the switching valve includes:

[0020] A valve body with a valve chamber provided inside. Connecting ports are respectively arranged on both sides of the valve chamber, and the connecting ports are used to connect the displacement chamber and the core extraction chamber;

[0021] A valve core that is hermetically connected to the valve body and is slidably connected inside the valve chamber. A communication hole is provided on the valve core. During the sliding process of the valve core, the communication hole is coaxial or offset with the connecting port, so as to communicate or close the connecting ports on both sides;

[0022] An expansion member that is fixedly connected to the valve body and is used to control the sliding of the valve core inside the valve body.

[0023] Further, the reconstruction system further includes:

[0024] A hoop for clamping the connection ends of the displacement chamber, the switching valve and the core extraction chamber.

[0025] Further, flange structures are provided at the positions where the displacement chamber, the switching valve and the core extraction chamber are interconnected, and the hoop includes:

[0026] A connection seat;

[0027] A lead screw, the lead screw is rotatably connected to the connection seat, there are two lead screws, and two sections of external threads with opposite helix directions are provided on the lead screw;

[0028] A motor, the motor is fixedly connected to the connection seat and is used to drive the lead screw to rotate;

[0029] Clamping members, there are two clamping members, and the two clamping members are respectively connected to the two sections of threads on the lead screw through threads. The two lead screws are respectively arranged at both ends of the clamping members. A clamping groove is arranged in the clamping members. When the clamping members clamp the connection ends of the displacement cabin, the switching valve and the coring cabin, the flange structures on the displacement cabin, the switching valve and the coring cabin are stuck in the clamping groove.

[0030] Further, the displacement mechanism includes:

[0031] A displacement base;

[0032] A linear displacement mechanism, the linear displacement mechanism is fixedly connected to the displacement base;

[0033] A bracket, the bracket is of a frame structure, the coring cabin is connected to the bracket, and the coring cabin can rotate along its own axis on the bracket. The linear displacement mechanism drives the bracket to move linearly.

[0034] In summary, compared with the prior art, the present invention has the following beneficial effects:

[0035] The deep in-situ high-temperature and ultra-high-pressure environment reconstruction system disclosed in the embodiment of the present invention gradually increases the temperature in the pressure chamber through the methods of conductive heating and stepped heating, and increases the temperature in the pressure chamber through the methods of extrusion and stepped pressure increase, so as to reconstruct the deep in-situ high-temperature and ultra-high-pressure environment and provide an environmental basis for studying the "in-situ" problems of deep rock mechanics. Description of the Drawings

[0036] Figure 1 It is a schematic structural diagram of the deep in-situ high-temperature and ultra-high-pressure environment reconstruction system disclosed in the embodiment of the present invention.

[0037] Figure 2 It is the front view of the deep in-situ high-temperature and ultra-high-pressure environment reconstruction system disclosed in the embodiment of the present invention.

[0038] Figure 3 For Figure 2 The top view.

[0039] Figure 4 For Figure 3 The left view.

[0040] Figure 5 ForFigure 4 A cross-sectional view taken along A-A.

[0041] Figure 6 is Figure 5 An enlarged partial view of portion I.

[0042] Figure 7 is Figure 5 An enlarged partial view of portion II.

[0043] Figure 8 This is a schematic structural view of the hoop in the deep in-situ high-temperature and high-pressure environment reconstruction system disclosed in the embodiment of the present invention.

[0044] Reference numerals:

[0045] 100, displacement cabin; 110, pressure chamber; 111, pressure shell; 120, temperature control chamber; 121, temperature control shell; 130, pressure sensor; 140, temperature sensor; 200, push rod; 210, pressure piston; 300, switch valve; 310, valve body; 311, valve cavity; 312, connection port; 313, sealing tube; 320, valve core; 321, communication hole; 330, telescopic member; 331, valve rod; 340, valve cover; 400, hoop; 410, connection seat; 411, support seat; 420, lead screw; 430, motor; 440, clamping member; 441, clamping plate; 442, clamping groove; 443, clamping slot; 444, slider; 500, core sampling cabin; 600, displacement mechanism; 700, base; 710, fixed bracket. Detailed implementation manners

[0046] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0047] As Figures 1 to 3 shown, a deep in-situ high-temperature and high-pressure environment reconstruction system provided by an embodiment of the present invention, the reconstruction system includes:

[0048] Displacement chamber 100, the displacement chamber 100 includes a pressure chamber 110 and a temperature control chamber 120. The temperature control chamber 120 is wrapped outside the pressure chamber 110. The pressure chamber 110 and the temperature control chamber 120 are isolated. A pressure sensor 130 and a temperature sensor 140 are arranged inside the pressure chamber 110 to respectively obtain the pressure and temperature inside the pressure chamber 110. The pressure chamber 110 is filled with a liquid medium. A heating structure is arranged inside the temperature control chamber 120 to increase the temperature of the liquid medium inside the pressure chamber 110;

[0049] Push rod 200, a pressure piston 210 is arranged inside the pressure chamber 110 of the push rod 200. The push rod 200 pushes the pressure piston 210 to slide inside the pressure chamber 110 to increase the pressure inside the pressure chamber 110;

[0050] Control unit, the control unit is electrically connected to the heating structure, the push rod 200, the pressure sensor 130 and the temperature sensor 140. The control unit controls the heating structure to increase the temperature step by step and stops heating after the temperature sensor 140 detects that the temperature inside the liquid medium reaches the preset temperature value. The control unit controls the push rod 200 to push the pressure piston 210 to slide inside the pressure chamber 110 and controls the pressure piston 210 to stop moving after the pressure sensor 130 detects that the pressure inside the pressure chamber 110 reaches the preset pressure value. Wherein, the pressure increase mode inside the pressure chamber 110 is step-by-step pressure increase.

[0051] In this embodiment, when simulating the environment, the fidelity core is placed inside the pressure chamber 110, and a liquid medium is added to the pressure chamber 110. The control unit obtains the pressure and temperature inside the pressure chamber 110 in real time through the pressure sensor 130 and the temperature sensor 140. At the same time, the control unit controls the heating structure to increase the temperature to increase the temperature inside the temperature control chamber 120. The temperature increase mode inside the temperature control chamber 120 is step-by-step temperature increase, such as setting multiple temperature increase thresholds and heat preservation times. After reaching a threshold, heat preservation is carried out for a preset time, and then the temperature is continued to be increased until the preset temperature value is reached and the temperature increase is stopped. The output shaft of the push rod 200 extends under the control of the control unit, so that the output shaft of the push rod 200 pushes the pressure piston 210 to move inside the pressure chamber 110. The pressure piston 210 compresses the liquid medium inside the pressure chamber 110, so that the pressure of the liquid medium inside the pressure chamber 110 increases. The pressure increase mode is step-by-step increase, such as setting multiple pressure values and setting the pressure holding time. When the pressure inside the pressure chamber 110 reaches a pressure value, after pressure holding for a preset time, the pressure is increased again until the preset pressure value is reached, and the pressure piston 210 stops moving. At this time, the temperature and pressure inside the pressure chamber 110 reach the preset values.

[0052] The deep in-situ high-temperature and ultra-high-pressure environment reconstruction system provided by the present invention can be applied to reconstruct the in-situ environment of deep rocks, test the physical and mechanical properties of real deep in-situ rock cores at different occurrence depths in a simulated real environment, promote the innovation of deep engineering science theories, improve the exploration and development capabilities of deep resources, and can also be applied to reconstruct the in-situ environment of deep-sea natural gas hydrates, provide equipment manufacturing technology for natural gas development, and can be used to simulate the lunar core environment to provide ideas for deep-space exploration equipment.

[0053] The deep in-situ high-temperature and ultra-high-pressure environment reconstruction system disclosed in the embodiment of the present invention gradually increases the temperature in the pressure chamber 110 by means of conduction heating and stepwise heating, and increases the pressure in the pressure chamber 110 by means of extrusion and stepwise pressure increase, thereby reconstructing the deep in-situ high-temperature and ultra-high-pressure environment and providing an environmental basis for studying the "in-situ" problems of deep rock mechanics.

[0054] Specifically, in this embodiment, the pressure chamber 110 is composed of the pressure shell 111. The pressure shell 111 is in a cylindrical shape with openings at both ends. One end of the pressure shell 111 is connected to the push rod 200, and the other end of the pressure shell 111 is sealed to simulate the sealed environment. The temperature control chamber 120 is composed of a temperature control shell 121 sleeved outside the pressure shell 111. The temperature control shell 121 is hermetically connected to the pressure shell 111. The pressure sensor 130 passes through the temperature control shell 121 and the pressure shell 111 and is connected to the inside of the pressure chamber 110. The temperature sensor 140 passes through the temperature control shell 121 and the pressure shell 111 and is connected to the inside of the pressure chamber 110. The pressure sensor 130 and the temperature sensor 140 are hermetically connected to the pressure shell 111 and the temperature control shell 121. The pressure shell 111 is made of a high-temperature and high-pressure resistant material, and the pressure shell 111 can withstand a pressure of 140 MPa without causing destructive or permanent deformation.

[0055] Preferably, the liquid medium in the pressure chamber 110 is water.

[0056] Preferably, the temperature control chamber 120 is filled with a heat-conducting medium, such as high-temperature heat-conducting oil, and the high-temperature heat-conducting oil can maintain stable performance at least at a temperature of 150 degrees.

[0057] In this embodiment, the heating structure is an electric heating wire, and the high-temperature heat-conducting oil is insulated.

[0058] It should be noted that there seems to be an error in the pressure value description in the original text of item , where "140MPa" is likely a miswriting. It should be "140 MPa" or other correct values. The above translation is based on the original text provided.Preferably, the control unit includes a temperature control mechanism, a pressure control mechanism, and a total control mechanism. The temperature control mechanism controls the temperature change in the pressure chamber 110. The temperature control mechanism is a stable remote control temperature control cabinet based on Modbus. The pressure control mechanism is also a stable remote control temperature control cabinet based on Modbus. The pressure control mechanism controls the pressure change in the pressure chamber 110. The temperature control mechanism is electrically connected to the temperature sensor 140 and the heating structure. The pressure control mechanism is electrically connected to the control member of the push rod 200 and the pressure sensor 130. The total control mechanism is an industrial computer, which is connected to the temperature control mechanism and the pressure control mechanism for inputting control parameters.

[0059] The pressure control mechanism and the temperature control mechanism adopt a remote control method, which can effectively ensure the safety of the test personnel.

[0060] In this embodiment, the push rod 200 is a long-stroke liquid expansion cylinder. The push rod 200 is hermetically connected to one end of the pressure shell 111. The control member of the push rod 200 is an electromagnetic control valve, which is electrically connected to the pressure control cabinet. The pressure piston 210 is a prior art. The pressure piston 210 is fixedly connected to the output end of the push rod 200 by bolts. The push rod 200 and the pressure shell 111 are fixedly connected by bolts.

[0061] It should be noted that a liquid medium injection interface is also provided on the pressure shell 111. The liquid medium injection interface is sealed by bolts and is used to inject liquid medium into the pressure shell 111.

[0062] In this embodiment, the reconstruction system further includes:

[0063] A base 700, which is used to support the displacement cabin 100 and the push rod 200. The base 700 is a frame structure. The bottom of the base 700 is fixed with a support foot structure in the prior art. A fixed bracket 710 is fixedly connected to the base 700 by bolts. The fixed bracket 710 is a frame structure. The displacement cabin 100 and the push rod 200 are fixedly connected to the fixed bracket 710 by bolts.

[0064] As a preferred implementation manner in this embodiment, the reconstruction system further includes:

[0065] A switching valve 300, which is fixedly connected to one end of the displacement cabin 100 away from the push rod 200;

[0066] Core extraction chamber 500, the structure of the core extraction chamber 500 is the same as that of the displacement chamber 100. One end of the core extraction chamber 500 is communicated with the switching valve 300, and the end of the core extraction chamber 500 away from the switching valve 300 is sealed by a plug 510;

[0067] Displacement mechanism 600, the displacement mechanism 600 is fixedly connected to the core extraction chamber 500, and is used to control the movement of the core extraction chamber 500 to realize the separation and combination of the switching valve 300 and the core extraction chamber 500.

[0068] Specifically, in this embodiment, as Figures 4 to 7 shown, the switching valve 300 includes:

[0069] Valve body 310, a valve cavity 311 is arranged inside the valve body 310, connection ports 312 are respectively arranged on both sides of the valve cavity 311, and the connection ports 312 are used to connect the displacement chamber 100 and the core extraction chamber 500;

[0070] Valve core 320, the valve core 320 is hermetically connected to the valve body 310, the valve core 320 is slidably connected inside the valve cavity 311, a communication hole 321 is arranged on the valve core 320, and during the sliding process of the valve core 320, the communication hole 321 is coaxial or staggered with the connection port 312, so as to communicate or close the connection ports 312 on both sides;

[0071] Expansion member 330, the expansion member 330 is fixedly connected to the valve body 310, and is used to control the sliding of the valve core 320 inside the valve body 310.

[0072] The valve body 310 is provided with flange holes at the mouths of the connection ports 312 located outside the valve body 310. The displacement chamber 100 and the core extraction chamber 500 are fixedly connected to the valve body 310 by bolts. A sealing pipe 313 is fixed in the valve cavity 311, and the sealing pipe 313 is hermetically connected to the valve cavity 311. The sealing pipe 313 and the valve cavity 311 are coaxially arranged. The sealing pipe 313 is attached to the surface of the valve core 320. The valve core 320 is a square block. The expansion member 330 is a hydraulic expansion structure. The expansion shaft of the expansion member 330 is fixedly connected to the valve core 320 through a valve rod 331. One end of the valve cavity 311 also passes through the valve body 310. The mouth of the valve cavity 311 on the valve body 310 is provided with a valve cover 340. The valve cover 340 is fixedly connected to the valve body 310. The setting of the valve cover 340 facilitates the installation of the valve core 320 and the sealing pipe 313.

[0073] The structure of the core sampling chamber 500 is the same as that of the displacement chamber 100. The pressure sensor 130 and the temperature sensor 140 provided on the core sampling chamber 500 are also electrically connected to the control unit. The plug 510 is fixedly connected to one end of the core sampling chamber 500 away from the switching valve 300 by bolts for sealing the core sampling chamber 500.

[0074] In this embodiment, the valve body 310 is fixedly connected to the base 700 by bolts.

[0075] As a preferred implementation mode in this embodiment, as Figure 1 and Figure 8 shown, the reconstruction system further includes:

[0076] A hoop 400 for clamping the connection ends of the displacement chamber 100, the switching valve 300, and the core sampling chamber 500.

[0077] Specifically, flange structures are provided at the interconnected positions of the displacement chamber 100, the switching valve 300, and the core sampling chamber 500. As Figure 8 shown, the hoop 400 includes:

[0078] A connecting seat 410;

[0079] A lead screw 420, the lead screw 420 is rotatably connected to the connecting seat 410. There are two lead screws 420, and two sections of external threads with opposite helix directions are provided on the lead screw 420;

[0080] A motor 430, the motor 430 is fixedly connected to the connecting seat 410 for driving the lead screw 420 to rotate;

[0081] Clamping members 440, there are two clamping members 440, and the two clamping members 440 are respectively connected to the two sections of threads on the lead screw 420 by threads. The two lead screws 420 are respectively arranged at both ends of the clamping member 440. A clamping groove 443 is provided in the clamping member 440. When the clamping member 440 clamps the connection ends of the displacement chamber 100, the switching valve 300, and the core sampling chamber 500, the flange structures on the displacement chamber 100, the switching valve 300, and the core sampling chamber 500 are stuck in the clamping groove 443.

[0082] Specifically, the connection seat 410 is of a flat plate structure. Two support seats 411 are fixedly connected to the connection seat 410. The lead screw 420 is rotatably connected to the support seats 411 through a bearing or a bushing structure. The motor 430 is fixedly connected to the support seats 411 by bolts. The lead screw 420 and the motor 430 are fixedly connected through a coupling. The clamping member 440 includes a clamping plate 441, a clamping groove 442 and a slider 444. The clamping groove 442 is a semi-circular groove provided on the clamping plate 441. The clamping plate 441 is of a block structure. The clamping groove 443 is provided inside the clamping groove 442. The slider 444 is fixedly connected to the clamping plate 441. The slider 444 is rotatably connected to the lead screw 420 through a thread.

[0083] The displacement mechanism 600 includes a displacement base 610, a linear displacement mechanism 620 and a bracket 630. The linear displacement mechanism 620 is fixedly connected to the displacement base 610. The linear displacement mechanism 620 is a prior art. For example, the linear displacement mechanism 620 is a lead screw guide displacement device. The bracket 630 is of a frame structure. The coring chamber 500 is connected to the bracket 630. And the coring chamber 500 can rotate along its own axis on the bracket 630. The bracket 630 is fixedly connected to the output end of the linear displacement mechanism 620 by bolts. The bracket 630 is slidably connected to the displacement base 610. A groove structure for connecting the coring chamber 500 is provided on the bracket 630. The coring chamber 500 is located in the groove structure.

[0084] The terms used in the present invention are for the purpose of describing specific embodiments only and are not intended to limit the present invention. The singular forms "a", "the" and "said" used in the present invention and the appended claims are also intended to include the plural forms unless the context clearly indicates otherwise. It should also be understood that the term "and / or" as used herein refers to and encompasses any and all possible combinations of one or more of the associated listed items.

[0085] It should be understood that although the terms first, second, third, etc. may be used in the present invention to describe various information, such information should not be limited to these terms. These terms are only used to distinguish information of the same type from each other. For example, without departing from the scope of the present invention, the first information may also be referred to as the second information, and similarly, the second information may also be referred to as the first information. Depending on the context, the word "if" as used herein may be interpreted as "when" or "while" or "in response to a determination".

[0086] Although embodiments of the present invention have been shown and described, those of ordinary skill in the art will appreciate that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A deep in-situ high-temperature and high-pressure environment reconstruction system, characterized in that, The reconstruction system comprises: A displacement chamber, wherein the displacement chamber comprises a pressure chamber and a temperature control chamber, wherein the temperature control chamber covers the outside of the pressure chamber, wherein the pressure chamber and the temperature control chamber are isolated, wherein a pressure sensor and a temperature sensor are arranged inside the pressure chamber to obtain the pressure and temperature inside the pressure chamber respectively, wherein the pressure chamber is filled with a liquid medium, and wherein a heating structure is arranged inside the temperature control chamber to increase the temperature of the liquid medium in the pressure chamber; A push rod, wherein a pressure piston is arranged in the pressure chamber, and the push rod pushes the pressure piston to slide in the pressure chamber to increase the pressure in the pressure chamber; A control unit, wherein the control unit is electrically connected to the heating structure, the push rod, the pressure sensor and the temperature sensor, the control unit controls the heating structure to heat up and stops heating after the temperature sensor detects that the temperature in the liquid medium reaches a preset temperature value, the control unit controls the push rod to push the pressure piston to slide in the pressure chamber and controls the pressure piston to stop moving after the pressure sensor detects that the pressure in the pressure chamber reaches a preset pressure value.

2. The deep in-situ high-temperature and high-pressure environment reconstruction system according to claim 1, wherein The control unit controls the heating structure to increase the temperature in a step-by-step manner, and the pressure in the pressure chamber increases in a step-by-step manner.

3. The deep in-situ high-temperature and ultra-high-pressure environment reconstruction system according to claim 1, characterized in that The shifting cabin comprises: A pressure shell, wherein the pressure shell forms a pressure chamber; A temperature control shell is sealed and connected to the outside of the pressure shell, and the temperature control shell and the pressure shell form a temperature control cavity.

4. The deep in-situ high-temperature and high-pressure environment reconstruction system according to claim 1, characterized in that The liquid medium is water.

5. The deep in-situ high-temperature and high-pressure environment reconstruction system according to any one of claims 1-4, characterized in that, The reconstruction system further comprises: A switch valve, the switch valve is fixedly connected to an end of the shifting cabin away from the push rod; A coring chamber, the structure of which is the same as that of the displacement chamber, one end of which is in communication with the switch valve, and one end of which is away from the switch valve is sealed; A shifting mechanism is fixedly connected to the coring chamber and is used to control the movement of the coring chamber.

6. The deep in-situ high-temperature and high-pressure environment reconstruction system according to claim 5, characterized in that The switch valve comprises: A valve body, wherein a valve cavity is arranged inside the valve body, and connecting ports are respectively arranged on both sides of the valve cavity, and the connecting ports are used to connect the shifting cabin and the coring cabin; A valve core, the valve core is sealed and connected to the valve body, the valve core is slidably connected to the inside of the valve cavity, a communication hole is provided on the valve core, and during the sliding process of the valve core, the communication hole is coaxial with or staggered with the connecting port, thereby connecting or closing the connecting ports on both sides; A telescopic member is fixedly connected to the valve body and is used to control the valve core to slide inside the valve body.

7. The deep in-situ high-temperature and high-pressure environment reconstruction system according to claim 5, characterized in that The reconstruction system further comprises: The clamp is used to clamp the connection ends of the shifting chamber, the switch valve and the coring chamber.

8. The deep in-situ high-temperature and high-pressure environment reconstruction system according to claim 7, characterized in that The positions where the displacement chamber, the switch valve and the coring chamber are connected to each other are all provided with flange structures, and the clamp comprises: Connecting seat; A screw rod, the screw rod is rotatably connected to the connecting seat, two screw rods are provided, and two sections of external threads with opposite rotation directions are provided on the screw rod; A motor, the motor is fixedly connected to the connecting seat and is used to drive the screw rod to rotate; Clamping members, there are two of the clamping members, and the two clamping members are respectively connected to two sections of threads on the lead screw through threads. The two lead screws are respectively arranged at both ends of the clamping member. A clamping groove is arranged in the clamping member. When the clamping member clamps the connection ends of the displacement cabin, the switching valve and the coring cabin, the flange structures on the displacement cabin, the switching valve and the coring cabin are stuck in the clamping groove.

9. The in-situ high-temperature and ultra-high-pressure environment reconstruction system for deep parts according to claim 5, wherein The displacement mechanism includes: A displacement base; A linear displacement mechanism, which is fixedly connected to the displacement base; A bracket, the bracket is a frame structure, the coring cabin is connected to the bracket, and the coring cabin can rotate along its own axis on the bracket. The linear displacement mechanism drives the bracket to move linearly.

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