Dismounting device for pressure-maintaining sampling tool

Abstract

The invention provides a dismounting device for a pressure-maintaining sampling tool, the pressure-maintaining sampling tool comprises a first sealing cylinder, a connecting cylinder and a second sealing cylinder which are communicated in sequence, the first sealing cylinder, the connecting cylinder and the second sealing cylinder are relatively fixed together through connecting buckles, and a sealing cavity for accommodating a rock core is defined by the first sealing cylinder, the connecting cylinder and the second sealing cylinder. The device comprises a sliding rail extending in the horizontal direction, at least two bearing mechanisms arranged on the sliding rail and used for bearing the tools and a fixing mechanism arranged on the sliding rail, and the fixing mechanism can be relatively fixed with the tools and enables the tools to be located on the bearing mechanisms. In this way, when the tool is disassembled, the tool can be located on the same horizontal plane. Therefore, the tool can be prevented from being damaged due to the fact that the tool is subjected to acting force in multiple directions.

Description

Technical Field

[0001] This invention belongs to the field of disassembly technology for pressure-holding sampling tools, and particularly relates to a disassembly device for pressure-holding sampling tools. Background Technology

[0002] Natural gas hydrates produce only carbon dioxide and water upon combustion, making them a clean energy source and thus considered a major future energy source. Natural gas hydrates primarily adhere to rock cores and exist in high-pressure, low-temperature environments (such as the seabed). When their temperature and pressure equilibrium conditions change, the natural gas hydrates decompose. Currently, to obtain rock cores containing natural gas hydrates, pressure-holding sampling tools are generally used to achieve accurate sampling of the natural gas hydrates.

[0003] Generally speaking, such as Figure 1 As shown, the pressure-holding sampling tool 10 includes a first sealing cylinder 101, a connecting cylinder 103, and a second sealing cylinder 102 that are interconnected. The first sealing cylinder 101, connecting cylinder 103, and second sealing cylinder 102 together define a chamber for holding a rock core containing natural gas hydrates. Simultaneously, both ends of the first sealing cylinder 101 and the second sealing cylinder 102 are sealed to create a high-pressure environment within the chamber. Furthermore, the connecting cylinders 103 can be arranged in any number and interconnected via connecting buckles 104. In this way, the length of the pressure-holding sampling tool can be specifically set according to the length of the rock core.

[0004] In this configuration, when it is necessary to remove the rock core located inside the tool 10, a cryogenic fluid needs to be sprayed onto the tool 10 to reduce the temperature inside the tool 10, thereby preventing the natural gas hydrate from decomposing.

[0005] Then, by opening the connecting buckle 104, the connecting cylinder 103 can be disengaged from the first sealing cylinder 101 or the second sealing cylinder 102. At the same time, the connecting cylinders 103 can also be disengaged from each other by opening the connecting buckle 104 between each connecting cylinder 103.

[0006] This allows the core sample to be removed from the tool 10. While this method effectively removes the core sample from the tool 10, during disassembly, the tool 10 is typically placed on the ground. Since the ground at work sites is often uneven, the ground exerts forces on the tool 10 from multiple directions, which can easily damage the tool 10. Summary of the Invention

[0007] To overcome at least one or more of the aforementioned defects in the prior art, the present invention provides a disassembly device for a pressure-holding sampling tool, the pressure-holding sampling tool comprising a first sealing cylinder, a connecting cylinder, and a second sealing cylinder connected in sequence, the first sealing cylinder, the connecting cylinder, and the second sealing cylinder being fixed together relative to each other by a connecting buckle, and together defining a sealed cavity for accommodating a rock core.

[0008] The device includes a slide rail extending in a horizontal direction, at least two receiving mechanisms disposed on the slide rail for receiving the tool, and a fixing mechanism disposed on the slide rail, the fixing mechanism being configured to be fixed relative to the tool and such that the tool is located on the receiving mechanism.

[0009] In one embodiment, the receiving mechanism includes a receiving component for receiving the tool, and a sliding component connected to the receiving component for being disposed on the slide rail, the sliding component being configured to move along a path formed by the slide rail.

[0010] In one embodiment, the receiving assembly includes connecting plates disposed on both sides of the slide rail in a corresponding manner, and a receiving plate parallel to the slide rail is disposed between the connecting plates, the receiving plate being configured to abut against the tool.

[0011] In one embodiment, the sliding assembly includes a bearing rod disposed between two connecting plates, the bearing rod abutting against the slide rail for movement along the slide rail.

[0012] In one embodiment, the fixing mechanism includes a fixing block fixed relative to the slide rail, and a clamping assembly optionally connected to the fixing block and configured to be fixed relative to the tool.

[0013] In one embodiment, the clamping assembly includes clamping portions disposed on both sides of the tool, and an adjusting portion connected to the clamping portions, the adjusting portion being configured to adjust the relative distance between the two clamping portions.

[0014] In one embodiment, the device further includes a spray mechanism disposed on a slide rail. The spray mechanism includes a support rod disposed on the slide rail, and a spray head connected to a fluid supply device is disposed on the support rod. The support rod and the spray head together form a space for the tool to move, for spraying the tool located in the space.

[0015] In one embodiment, the device further includes a drive mechanism disposed on the slide rail, the drive mechanism including a lead screw, and a lead screw hole that cooperates with the lead screw is provided on the receiving plate, the lead screw being configured to drive the receiving mechanism to move along the slide rail during rotation.

[0016] In one embodiment, the device further includes a support mechanism comprising a support portion having an inwardly recessed groove formed thereon, the groove being configured to engage with the slide rail and be fixedly attached to the slide rail.

[0017] In one embodiment, the support mechanism further includes a connecting portion disposed on the support portion and extending outward, wherein a moving mechanism is disposed on the connecting portion, the moving mechanism being configured to support the support mechanism and drive the support mechanism to move together.

[0018] Overall, compared with the prior art, the above-conceived technical solution through the invention can achieve at least the following beneficial effects:

[0019] In this invention, a slide rail extending horizontally is provided, and at least two receiving mechanisms are provided on the slide rail, configured to receive the tool. Simultaneously, a fixing mechanism is also provided on the slide rail, configured to be fixed relative to the tool, with the tool positioned on the receiving mechanism. In this way, when the tool needs to be disassembled, it can be placed on the receiving mechanism, with one end of the tool fixed relative to the fixing mechanism, and then the other end can be disassembled. This ensures the tool is on a horizontal plane. Therefore, the tool can be prevented from being subjected to forces from multiple directions, thus avoiding damage to the tool. Attached Figure Description

[0020] The embodiments of the present invention will now be described in detail with reference to the accompanying drawings, in which:

[0021] Figure 1 The schematic diagram illustrates the overall structure of the pressure-holding sampling tool;

[0022] Figure 2 The schematic diagram illustrates the overall structure of the disassembly device for the pressure-holding sampling tool according to the present invention;

[0023] Figure 3 The schematic diagram illustrates the overall structure of the receiving mechanism of the disassembly device for the pressure-holding sampling tool according to the present invention;

[0024] Figure 4 The schematic diagram illustrates the overall structure of the clamping assembly of the disassembly device for the pressure-holding sampling tool according to the present invention, in conjunction with the pressure-holding sampling tool;

[0025] Figure 5 The schematic diagram shows the overall structure of the disassembly device for the pressure-holding sampling tool according to the present invention from a side view.

[0026] Figure 6 The schematic diagram illustrates the overall structure of the slide rail of the disassembly device for the pressure-holding sampling tool according to the present invention.

[0027] It should be noted that the accompanying drawings are not necessarily drawn to scale.

[0028] In all the accompanying drawings, the same reference numerals denote the same technical features, specifically: 10-pressure-holding sampling tool; 101-first sealing cylinder; 1011-bottom wall; 1012-side wall; 1013-cavity; 102-second sealing cylinder; 103-connecting cylinder; 104-connecting buckle; 100-disassembly device for the pressure-holding sampling tool; 1-slide rail; 11-limiting hole; 2-receiving mechanism; 21-receiving assembly; 211-connecting plate; 212-receiving plate; 2121-screw hole; 213-connecting rod; 214-first bearing; 22-sliding assembly; 221-bearing rod; 222 - Second bearing; 3- Fixing mechanism; 31- Fixing block; 32- Clamping assembly; 321- Clamping part; 3211- Force-applying part; 3212- Force-receiving part; 322- Adjusting part; 3221- Stud; 3222- Threaded cylinder; 3223- Handle; 4- Spraying mechanism; 41- Support rod; 42- Spray head; 43- Collection tank; 5- Limiting mechanism; 51- Threaded rod; 6- Drive mechanism; 61- Lead screw; 62- Motor; 7- Support mechanism; 71- Support part; 72- Connecting part; 8- Moving mechanism; 81- Connecting shaft; 82- Fixing plate; 83- Fixing rod; 84- Traveling wheel. Detailed Implementation

[0029] To better understand the purpose, structure, and function of this invention, the following detailed description of a disassembly device for a pressure-holding sampling tool is provided in conjunction with the accompanying drawings.

[0030] like Figure 1 As shown, the pressure-holding sampling tool 10 includes a first sealing cylinder 101 and a second sealing cylinder 102 for communicating with the first sealing cylinder 101. The first sealing cylinder 101 includes a bottom wall 1011 and a side wall 1012 disposed on the bottom wall 1011 and extending outward. The side wall 1012, together with the bottom wall 1011, defines an open-end, hollow cavity 1013 for holding a rock core (not shown) containing natural gas hydrates.

[0031] Meanwhile, the second sealing cylinder 102 is configured with the same structure as the first sealing cylinder 101, and the second sealing cylinder 102 is constructed to be selectively and sealingly fastened together with the first sealing cylinder 101. In this way, the first sealing cylinder 101 and the second sealing cylinder 102 can together form a cavity with sealed ends and a hollow interior for holding the rock core, and can seal the rock core within the cavity.

[0032] In addition, such as Figure 1 As shown, the pressure-holding sampling tool 10 further includes a connecting cylinder 103 disposed between the first sealing cylinder 101 and the second sealing cylinder 102. The connecting cylinder 103 is hollow and is used to connect the first sealing cylinder 101 and the second sealing cylinder 102 to each other. Furthermore, several connecting cylinders 103 can be disposed between the first sealing cylinder 101 and the second sealing cylinder 102, and each connecting cylinder 103 can be detachably connected together. In this way, the number of connecting cylinders 103 can be oriented to accommodate the required length of the rock core, thus meeting the needs for holding the rock core.

[0033] At the same time, such as Figure 1 As shown, the pressure-holding sampling tool 10 also includes a connecting buckle 104, which is optionally disposed at the connection of the two connecting cylinders 103 to fix the connecting cylinders 103 together and connect them in a sealed manner.

[0034] In this configuration, when the rock core (not shown in the figure) needs to be placed, the number of connecting cylinders 103 is quantitatively selected according to the length of the rock core, and each connecting cylinder 103 is sealed together as one unit by connecting buckles 104, with one end of the connecting cylinder 103 connected to the first sealing cylinder 101. This forms a space to accommodate the rock core.

[0035] Then, the rock core is placed in the space, and the end of the connecting cylinder 103 is attached to the second sealing cylinder 102. This completes the assembly of the tool 10 and seals the rock core within the tool 10, thereby subjecting the rock core to a high-pressure environment.

[0036] When it is necessary to remove the rock core located in the pressure-holding sampling tool 10, the tool 10 is placed horizontally, and then a low-temperature fluid is sprayed on the tool 10 to reduce the temperature inside the tool 10, thereby preventing the natural gas hydrate from decomposing.

[0037] Then, the connecting buckle 104 is opened, which allows the connecting cylinder 103 to disengage from the first sealing cylinder 101 or the second sealing cylinder 102. Simultaneously, the connecting buckles 104 between the various connecting cylinders 103 can also be opened, thereby disengaging the individual connecting cylinders 103 from each other. Thus, the rock core can be removed from the tool 10. It should be noted that these structures of the tool 10 are well known to those skilled in the art.

[0038] Figure 2 The schematic diagram illustrates the overall structure of a disassembly device 100 for a pressure-holding sampling tool according to the present invention. In such a way... Figure 2 In the illustrated embodiment, the disassembly device 100 for the pressure-holding sampling tool includes a slide rail 1 extending horizontally and at least two receiving mechanisms 2 disposed on the slide rail 1, the receiving mechanisms 2 being configured to receive the tool 10. In this way, when the tool 10 needs to be disassembled, it can be placed on the two receiving mechanisms 2 to ensure the tool 10 is placed horizontally.

[0039] At the same time, such as Figure 2 As shown, the device 100 further includes a fixing mechanism 3 that is relatively fixed to the slide rail 1. The fixing mechanism 3 is configured to be selectively connected to the tool 10 and to form a relatively fixed relationship with the tool 10. In this way, the tool 10 can be selectively fixed to the slide rail 1.

[0040] In this configuration, when the tool 10 needs to be disassembled to remove the rock core inside, the tool 10 is placed on the receiving mechanism 2, and the fixing mechanism 3 is fixed relative to the first sealing cylinder 101 or the connecting cylinder 103. In this way, the tool 10 can be relatively fixed on the slide rail 1. Simultaneously, a cryogenic fluid is sprayed onto the tool 10 to lower the temperature inside, thereby preventing the decomposition of the natural gas hydrate.

[0041] Then, a force is applied to the second sealing cylinder 102, causing it to detach from the first sealing cylinder 101 or the connecting cylinder 103. This allows the rock core to be removed from the tool 10. However, when it is necessary to disassemble the first sealing cylinder 101, the second sealing cylinder 101 is fixed to the fixing mechanism 3, and the remaining operations are the same as described above, so they will not be repeated. In this way, the tool 10 can be disassembled on a horizontal plane. This avoids the tool 10 being subjected to forces from multiple directions, thus preventing damage to the tool 10.

[0042] In one embodiment, such as Figure 2 As shown, the device 100 also includes a spray mechanism 4 disposed on the slide rail 1. The spray mechanism 4 is configured to selectively spray fluid toward the tool 10 to cool the tool 10, thereby keeping the interior of the tool 10 in a low-temperature environment. This prevents the decomposition of natural gas hydrates contained in the rock core located inside the tool 10.

[0043] In this embodiment, as Figure 2 As shown, the spray mechanism 4 is optionally connected to a fluid supply device (not shown), which is configured to continuously supply fluid to the spray mechanism 4. In this way, the spray mechanism 4 can continuously spray the tool 10, thereby continuously cooling the tool 10.

[0044] In one embodiment, such as Figure 2 As shown, the receiving mechanism 2 is configured to move along the path formed by the slide rail 1. In this way, the relative distance formed between the two receiving mechanisms 2 can be adjusted. Thus, tools 10 of different lengths can be supported, thereby improving the applicability of the device 100.

[0045] In this embodiment, as Figure 3 As shown, the receiving mechanism 2 includes a receiving component 21, which is configured to abut against the tool 10 and support the tool 10. Meanwhile, as... Figure 3 As shown, the receiving mechanism 2 also includes a sliding component 22 connected to the receiving component 21. The sliding component 22 is disposed on the slide rail 1 and can move along the path formed by the slide rail 1.

[0046] Among them, such as Figure 3 As shown, the receiving assembly 21 includes connecting plates 211 arranged in a corresponding manner. A receiving plate 212, parallel to the slide rail 1, is disposed between the connecting plates 211. The receiving plate 212 is configured to abut against the tool 10 to support it. In this way, when the tool 10 is placed on the receiving plate 212, the tool 10 receives an upward vertical support force from the receiving plate 212, and is laterally limited by the connecting plates 211. This allows the tool 10 to be stably mounted on the receiving assembly 21.

[0047] According to a preferred embodiment of the present invention, such as Figure 3As shown, the free end of the receiving plate 212 is concave inward to form an arc shape. In this way, a surface contact can be formed between the tool 10 and the receiving plate 212, thereby increasing the friction between the tool 10 and the receiving plate 212. As a result, the tool 10 can be more stably mounted on the receiving assembly 21.

[0048] According to a preferred embodiment of the present invention, such as Figure 3 As shown, two receiving plates 212 are provided and arranged correspondingly to each other. This arrangement further increases the contact area between the tool 10 and the receiving assembly 21. Consequently, the tool 10 can be more stably mounted on the receiving assembly 21. Furthermore, with this arrangement, when the tool 10 is disassembled, it can rotate along the receiving plate 212, thus facilitating disassembly.

[0049] According to a preferred embodiment of the present invention, such as Figure 3 As shown, a connecting rod 213 is detachably provided between the receiving plates 212, and the connecting rod 213 is used to connect the two receiving plates 212 into one unit. In this way, a stable connection can be formed between the two receiving plates 212. At the same time, at least one first bearing 214 is provided on the connecting rod 213. The first bearing 214 is configured to be parallel to the tool 10, and when the tool 10 is placed on the receiving plate 212, the tool 10 abuts against the first bearing 214.

[0050] In this way, when the tool 10 is disassembled, the disassembled part can come into contact with the first bearing 214 during rotation, and the friction between the tool 10 and the receiving plate 212 is reduced by the first bearing. This further facilitates the disassembly of the tool 10.

[0051] In one embodiment, such as Figure 3 As shown, the sliding assembly 22 includes a bearing rod 221 detachably disposed between two connecting plates 211. The bearing rod 221 is mounted on the slide rail 1 and is perpendicular to the slide rail 1. In this way, when it is necessary for the receiving mechanism 2 to move along the path formed by the slide rail 1, a force is applied to the receiving mechanism 2. At this time, the bearing rod 221 will move relative to the slide rail 1 along the path formed by the slide rail 1 until the sliding assembly 22 moves to a suitable position.

[0052] According to a preferred embodiment of the present invention, such as Figure 3As shown, a second bearing 222 is also provided on the bearing rod 221. The second bearing 222 passes through the bearing rod 221 and is perpendicular to the slide rail 1. In this way, when the receiving mechanism 2 needs to move along the path formed by the slide rail 1, the second bearing 222 can change the sliding friction between the bearing rod 221 and the slide rail 1 into rolling friction. This reduces the frictional force between the bearing rod 221 and the slide rail 1.

[0053] According to a preferred embodiment of the present invention, such as Figure 3 As shown, a limiting mechanism 5 is also provided on the connecting plate 211. Meanwhile, a plurality of limiting holes 11 are provided along the slide rail 1, extending from the slide rail 1. These limiting holes 11 are configured to cooperate with the limiting mechanism 5. Thus, the receiving component 2 can be relatively fixed on the slide rail 1.

[0054] In this embodiment, as Figure 3 As shown, the limiting mechanism 5 includes a threaded rod 51, which passes through the connecting plate 211 and optionally extends into the limiting hole 11 to limit the movement of the receiving component 2. Preferably, the limiting hole 11 is configured to be threadedly engaged with the threaded rod 51. In this way, the threaded rod 51 can be relatively fixed to the slide rail 1, thereby further ensuring a relatively fixed relationship between the receiving component 2 and the slide rail 1.

[0055] In this configuration, when it is necessary to adjust the distance between the two receiving components 2, the relative fixation between the threaded rod 51 and the slide rail 1 is first cancelled, and then a force is applied to the receiving component 2.

[0056] At this time, the receiving component 2 will move along the path formed by the slide rail 1. When the receiving component 2 moves to a suitable position, the threaded rod 51 is screwed into the limiting hole 11, thereby forming a relatively fixed relationship between the receiving component 2 and the slide rail 1. In this way, the relative distance between the two receiving components 2 can be adjusted according to the different lengths of the tool 10, making it suitable for tools 10 of different lengths.

[0057] In one embodiment, such as Figure 1 As shown, the fixing mechanism 3 includes a fixing block 31 fixed to the slide rail 1, and a clamping assembly 32 optionally connected to the fixing block 31 and configured to be fixed to the tool 10. In this way, the fixing mechanism 3 can optionally fix the tool 10 to the receiving assembly 2, thereby facilitating the disassembly of the tool 10.

[0058] In this embodiment, as Figure 4 As shown, the clamping assembly 32 includes clamping portions 321 disposed on both sides of the tool 10, and an adjusting portion 322 for connecting the clamping portions 321 together and adjusting the relative distance formed between the two clamping portions 321. Each clamping portion 321 includes a force-applying portion 3211 for applying force toward the tool 10, and a force-receiving portion 3212 connected to the force-applying portion 3211 and capable of receiving force from the adjusting portion 322.

[0059] In this way, when it is necessary to fix the tool 10, the tool is placed between the force-applying parts 3211, and the force-receiving parts 3212 are subjected to force by the adjusting part 322, thereby adjusting the relative distance between the force-applying parts 3211. In this way, the tool 10 can be fixed.

[0060] According to a preferred embodiment of the present invention, such as Figure 4 As shown, the side of the force-applying part 3211 that abuts against the tool 10 is configured to have the same curvature as the tool. This increases the contact area between the force-applying part 3211 and the tool 10, thereby allowing the tool 10 to be more stably mounted on the fixing mechanism 3.

[0061] In one embodiment, such as Figure 4 As shown, the adjusting part 322 includes studs 3221 passing through the force-applying parts 3211, and a threaded sleeve 3222 is disposed between the studs 3221, the threaded sleeve 3222 being configured to cooperate with the studs 3221. In this way, when the studs 3221 are rotated, the relative distance formed between the force-applying parts 3211 can be adjusted, thereby fixing the tool 10 relatively on the slide rail 1 or removing the tool 10 from the slide rail 1.

[0062] According to a preferred embodiment of the present invention, such as Figure 4 As shown, a handle 3223 is provided at the free end of the stud 3221. The handle 3223 is used to provide a fulcrum for applying force when the stud 3221 is rotated, thereby facilitating the application of force.

[0063] According to a preferred embodiment of the present invention, the fixing block 31 and the clamping assembly 32 are configured to be threadedly engaged. In this way, the clamping assembly 32 can be detachably connected to the fixing block 31, thereby forming a relative fixation with the slide rail 31.

[0064] In one embodiment, such as Figure 2As shown, the spraying mechanism 4 includes a support rod 41 mounted on a slide rail 1, and a spray head 42 is mounted on the support rod 41. The support rod 41 and the spray head 42 together form the space for the tool's movement. The spray head 42 is configured to communicate with a fluid supply device (not shown). In this embodiment, the fluid supply device is configured to continuously supply low-temperature fluid toward the spray head 42 to cool the interior of the tool 10. In this way, fluid from the fluid supply device can continuously flow from the spray head 42 and spray the tool 10 located in the space.

[0065] According to a preferred embodiment of the present invention, such as Figure 2 As shown, the spray mechanism 4 also includes a collection tank 43 disposed on the slide rail 1, the collection tank 43 being configured to collect fluid from the spray head 42. In this way, leakage of the fluid can be prevented.

[0066] In one embodiment, such as Figure 2 As shown, the device 100 further includes a drive mechanism 6 disposed on the slide rail 1. The drive mechanism 6 is configured to drive the receiving mechanism 2 to reciprocate along the slide rail 1. In this embodiment, the drive mechanism 6 includes a lead screw 61, and a lead screw hole 2121 cooperating with the lead screw 212 is provided on the receiving plate 212.

[0067] In this way, when the lead screw 61 rotates, it can drive the receiving mechanism 2 to move along the path formed by the slide rail 1. This allows for easy adjustment of the relative distance between the receiving mechanisms 2. Furthermore, after the tool 10 is disassembled, the drive mechanism 6 can also move the disassembled tool along with it, facilitating the removal of the rock core located within the tool 10.

[0068] According to a preferred embodiment of the present invention, such as Figure 2 As shown, the drive mechanism 6 also includes a motor 62, which is mounted on the slide rail 1 and configured to be connected to the lead screw 61 to drive the lead screw to rotate.

[0069] In one embodiment, such as Figure 5As shown, the device 100 further includes a support mechanism 7, which is configured to cooperate with the slide rail 1 and support the slide rail 1, thereby ensuring that the slide rail 1 is horizontally positioned. In this embodiment, the support mechanism 7 includes a support portion 71, on which an inwardly recessed groove (not shown in the figure) is formed. The groove is configured to cooperate with the slide rail 1 and be fixedly attached to it. In this way, the support portion 71 can stably support the slide rail 1. Simultaneously, in this configuration, during use, the support portion 71 comes into contact with the placement surface (ground or similar object), thereby increasing the contact area. This further ensures the stable positioning of the slide rail 1.

[0070] According to a preferred embodiment of the present invention, such as Figure 5 As shown, the support mechanism 7 also includes a connecting part 72 disposed on the support part 71 and extending outward, and a moving mechanism 8 for transferring the device 100 is optionally provided on the connecting part 72.

[0071] In this embodiment, as Figure 5 As shown, the moving mechanism 8 includes a connecting shaft 81 fixed to the connecting part 72. A fixing plate 82 is arranged perpendicularly to the connecting shaft 81, and a fixing rod 83 is arranged perpendicularly to the fixing shaft 82 on the fixing plate 82. The moving mechanism 8 also includes a traveling wheel 84, the central axis of which is fixed to the fixing rod 83. In this way, the traveling wheel 84 can rotate along the central axis, and during rotation, it drives the fixing rod 83, which is connected to the rotating axis, to move together, thereby driving the support mechanism 7 to move synchronously. Thus, the device 100 can be moved.

[0072] The operation of the disassembly device 100 for the pressure-holding sampling tool according to the present invention is as follows.

[0073] First, the moving mechanism 8 is connected to the supporting mechanism 7, and the slide rail 1 is set on the supporting mechanism 7, so that the slide rail 1 and the supporting mechanism 7 are relatively fixed together. Then, the receiving mechanism 2, the fixing mechanism 3, the spraying mechanism 4, the limiting mechanism 5 and the driving mechanism 6 are respectively set on the slide rail 1, and the fixing mechanism 3 and the limiting mechanism 5 are relatively fixed together.

[0074] Simultaneously, the receiving mechanism 2 and the driving mechanism 6 are interconnected, and the relative distance between the receiving mechanisms 2 is adjusted by the driving mechanism 6. Furthermore, a fluid supply device (not shown in the figure) is connected to the spraying mechanism 4, and the fluid supply device 4 continuously supplies fluid toward the spraying mechanism 4. Thus, the assembly of the device 100 is completed.

[0075] However, when it is necessary to disassemble the tool 10 to remove the rock core located inside the tool 10, the tool 10 is placed on the receiving mechanism 2 and connected to the fixing mechanism 3. Then, the spraying mechanism 4 is turned on, so that the spraying mechanism 4 continuously sprays the tool 10 to reduce the temperature inside the tool 10, thereby preventing the decomposition of the natural gas hydrate.

[0076] Then, the connecting buckle 104 on the tool 10 is disassembled. At this time, the disassembled part will be located on the receiving mechanism 2. During this process, the lead screw 61 can be driven to rotate by the drive mechanism 6, thereby causing the receiving mechanism 2 carrying the disassembled part to move. In this way, the tools 10 can be separated from each other. Thus, the rock core located in the tool 10 can be removed. In this way, the tool 10 can be disassembled on a horizontal plane. Thus, the tool 10 can be avoided from being subjected to forces from multiple directions, thereby preventing damage to the tool 10.

[0077] It is understood that the present invention has been described through some embodiments, and those skilled in the art will recognize that various changes or equivalent substitutions can be made to these features and embodiments without departing from the spirit and scope of the invention. Furthermore, under the teachings of the present invention, these features and embodiments can be modified to adapt to specific situations and materials without departing from the spirit and scope of the invention. Therefore, the present invention is not limited to the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of this application are within the protection scope of the present invention.

Claims

1. A disassembly device for a pressure-holding sampling tool, the pressure-holding sampling tool (10) comprising a first sealing cylinder (101), a connecting cylinder (103), and a second sealing cylinder (102) connected in sequence, wherein the first sealing cylinder (101), the connecting cylinder (103), and the second sealing cylinder (102) are fixed together relative to each other by a connecting buckle (104) and together define a sealed cavity for accommodating a rock core. Its features are, The device includes a slide rail (1) extending in a horizontal direction, at least two receiving mechanisms (2) disposed on the slide rail (1) for receiving the tool (10), and a fixing mechanism (3) disposed on the slide rail (1), the fixing mechanism (3) being configured to be fixed relative to the tool (10) and such that the tool (10) is located on the receiving mechanism (2).

2. The disassembly device for a pressure-holding sampling tool according to claim 1, characterized in that, The receiving mechanism (2) includes a receiving component (21) for receiving the tool (10) and a sliding component (22) connected to the receiving component (21) for being disposed on the slide rail (1), the sliding component (22) being configured to move along the path formed by the slide rail (1).

3. The disassembly device for a pressure-holding sampling tool according to claim 2, characterized in that, The receiving assembly (21) includes connecting plates (211) disposed on both sides of the slide rail (1) in a corresponding manner, and a receiving plate (212) parallel to the slide rail (1) is disposed between the connecting plates (211), the receiving plate (212) being configured to abut against the tool (10).

4. The disassembly device for a pressure-holding sampling tool according to claim 3, characterized in that, The sliding assembly (22) includes a bearing rod (221) disposed between two connecting plates (211), the bearing rod (221) abutting against the slide rail (1) for movement along the slide rail (1).

5. The disassembly device for a pressure-holding sampling tool according to any one of claims 1 to 4, characterized in that, The fixing mechanism (3) includes a fixing block (31) fixed to the slide rail (1) and a clamping assembly (32) optionally connected to the fixing block (31) and configured to be fixed to the tool (10).

6. The disassembly device for a pressure-holding sampling tool according to claim 5, characterized in that, The clamping assembly (32) includes clamping portions (321) disposed on both sides of the tool (10) and an adjusting portion (322) connected to the clamping portions (321), the adjusting portion (322) being configured to adjust the relative distance between the two clamping portions (321).

7. The disassembly apparatus for a pressure-holding sampling tool according to any one of claims 1 to 4, characterized in that, The device also includes a spray mechanism (4) mounted on the slide rail (1). The spray mechanism (4) includes a support rod (41) mounted on the slide rail (1). A spray head (42) connected to a fluid supply device is mounted on the support rod (41). The support rod (41) and the spray head (42) together form a space for the tool (10) to move, and spray the tool (10) located in the space.

8. The disassembly device for a pressure-holding sampling tool according to claim 3 or 4, characterized in that, The device also includes a drive mechanism (6) mounted on the slide rail (1). The drive mechanism (6) includes a lead screw (61). A lead screw hole (2121) is provided on the receiving plate (212) to cooperate with the lead screw (212). The lead screw (61) is configured to drive the receiving mechanism (2) to move along the slide rail (1) during rotation.

9. The disassembly apparatus for a pressure-holding sampling tool according to any one of claims 1 to 4, characterized in that, The device further includes a support mechanism (7), which includes a support portion (71) on which an inwardly recessed groove is formed. The groove is configured to cooperate with the slide rail (1) and be fixed together with the slide rail (1).

10. The disassembly device for a pressure-holding sampling tool according to claim 9, characterized in that, The support mechanism (7) further includes a connecting part (72) disposed on the support part (71) and extending outward, and a moving mechanism (8) is disposed on the connecting part (72). The moving mechanism (8) is configured to support the support mechanism (7) and drive the support mechanism (7) to move together.

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