Hydrocarbon generation simulation instrument for unconventional oil and gas resource evaluation

Abstract

The invention relates to a hydrocarbon generation simulation instrument for unconventional oil and gas resource evaluation, belongs to the technical field of hydrocarbon generation simulation, and aims to solve the problem that a reaction kettle of an existing hydrocarbon generation simulation instrument is time-consuming and labor-consuming during unloading. The hydrocarbon generation simulation instrument for unconventional oil and gas resource evaluation comprises a reaction kettle, an analysis pipeline and automatic discharging equipment, a bottom cover is detachably arranged at the bottom end of a kettle body of the reaction kettle, and a sample bin assembly is arranged in the kettle body; the analysis pipeline is connected with the sample bin assembly and is used for collecting reaction products of the hydrocarbon generation simulation reaction; the automatic unloading equipment comprises three abutting pieces, a telescopic mechanism, a rotating mechanism, a rotating base, a releasing mechanism and a storage mechanism. The whole unloading process is automatically completed from the starting action of the rotating base and the telescopic mechanism to the in-position of the abutting piece, the driving of the rotating mechanism out of the bottom cover, the downward movement of the power-assisted component and the cooperative work of the subsequent releasing mechanism and the storage mechanism, the experiment efficiency is higher, and more labor is saved.

Description

Technical Field

[0001] This application belongs to the technical field of hydrocarbon generation simulation, and more particularly relates to a hydrocarbon generation simulation instrument for unconventional oil and gas resource evaluation. Background Art

[0002] In related fields such as unconventional natural gas, conventional oil and gas exploration and development, the hydrocarbon generation process is crucial for oil and gas resource evaluation. As an important experimental device, a hydrocarbon generation simulation instrument can simulate the hydrocarbon generation process under formation conditions in a laboratory environment, thereby providing key data for understanding the hydrocarbon generation mechanism and evaluating the potential of oil and gas resources. However, with the continuous in-depth research on hydrocarbon generation simulation and the increasing requirements for refinement, the existing hydrocarbon generation simulation instruments have gradually revealed limitations in some aspects, especially in the unloading operation of the internal components of the reaction kettle of the simulation instrument, where there are many inconveniences and problems to be solved urgently.

[0003] After the traditional hydrocarbon generation simulation instrument completes the simulation experiment, it is necessary to open the reaction kettle and take out the reaction chamber. However, currently, the unloading of the internal components of the reaction kettle requires relatively cumbersome manual operations. More importantly, all the internal components of the instrument are made of metal. During the unloading stage after each experiment, manually handling these heavy metal components becomes a difficult problem. The operator needs to consume a large amount of physical strength, resulting in physical fatigue of the operator and difficulty in maintaining a high-efficiency working state for a long time, which slows down the overall turnover rhythm of the experiment. Summary of the Invention

[0004] In view of the above analysis, the embodiments of the present invention aim to provide a hydrocarbon generation simulation instrument for unconventional oil and gas resource evaluation to solve the problem of time-consuming and laborious unloading of the reaction kettle of the existing hydrocarbon generation simulation instrument.

[0005] The object of the present invention is achieved as follows: A hydrocarbon generation simulation instrument for unconventional oil and gas resource evaluation, comprising: A reaction kettle having a kettle body, the bottom end of the kettle body is detachably provided with a bottom cover, and the interior of the kettle body has a sample chamber assembly for installing hydrocarbon source rock samples; An analysis pipeline connected to the sample chamber assembly and configured to collect reaction products of the hydrocarbon generation simulation reaction; An automatic discharging device is provided below the reaction kettle and includes three abutting members, a telescopic mechanism, a rotating mechanism, a rotating base, a releasing mechanism, and a storage mechanism; the bottom cover of the reaction kettle and the three abutting members enclose an accommodating space; the telescopic mechanism is connected to the abutting members, and the abutting members are switched to a temporary storage position and a screwed-out position through the telescopic mechanism; when the abutting members are in the temporary storage position, the bottom cover and the sample bin assembly thereon can move into the accommodating space; the rotating mechanism is connected to the telescopic mechanism; the rotating base is arranged at the bottom of one of the abutting members, and when the abutting member abuts against the bottom cover, the rotating base moves to a clamping position and abuts against the lower part of the abutting member; the releasing mechanism is arranged on the abutting member, and the sample bin assemblies in the accommodating space are released one by one through the releasing mechanism; the storage mechanism is arranged below the abutting member, and the released sample bin assemblies are received one by one through the storage mechanism.

[0006] Further, the abutting member includes an abutting plate, and the length of the abutting plate is greater than the overall height of the bottom cover and the sample bin assembly thereon.

[0007] Further, the telescopic mechanism includes a lead screw mechanism, a fixed seat, a mounting seat, and a telescopic member. The lead screw mechanism is installed on the mounting seat, the fixed seat is connected to the lead screw mechanism, the telescopic member is connected to the middle of the abutting plate, the mounting seat is connected to the rotating mechanism, the telescopic member includes two relatively parallel telescopic plates, the telescopic plates are arranged parallel to the horizontal plane and are respectively connected to both sides of the surface of the abutting plate.

[0008] Further, the rotating mechanism includes a circular track, a circular gear ring, and a rotating driver. The circular gear ring is rotatably connected to the circular track, the rotating driver drives the circular gear ring to rotate by driving a rotating gear, the circular gear ring is connected to the telescopic mechanism, and the circular gear ring rotates counterclockwise to drive the abutting plate to screw out of the bottom cover.

[0009] Further, the rotating base includes a rotating cover, a rotating shaft, a rotating gear set, and a cover driving motor. The rotating cover is connected to the rotating shaft, the rotating shaft is rotatably connected in the bottom rotating groove of the abutting plate, and the cover driving motor is connected to the outer side surface of the abutting plate.

[0010] Further, the storage mechanism includes a storage motor, a storage bracket, and storage bins. The storage bins are connected to the storage bracket, the driving end of the storage motor is connected to the storage bracket, and a plurality of the storage bins are distributed around the storage motor. The circular path of the rotation of the storage bins is located below the accommodating space.

[0011] Further, there are a plurality of the releasing mechanisms, and the plurality of the releasing mechanisms are vertically arranged along the middle of the abutting plate.

[0012] Further, the release mechanism includes a release motor, a release bracket, a release belt, a release track, a release slide plate, and a release driver. The release motor is connected to the outside of the abutting plate. The release belt covers the release bracket. One corner of the triangle formed by the release motor and the release belt is drivingly connected. The side of the release belt corresponding to the corner passes through a through hole formed in the side wall of the abutting plate and penetrates into the accommodation space. The release track is vertically connected to the outer side surface of the abutting plate. The release slide plate is slidably connected to the release track. The release driver is drivingly connected to the release slide plate to slide. The release bracket and the release motor are both connected to the release slide plate through welding parts.

[0013] Further, the hydrocarbon generation simulation instrument further includes a discharge detector and a height reset mechanism connected to the rotation mechanism.

[0014] Further, the height reset mechanism includes a lifting motor, a blocking motor, a blocking plate, a lifting rail, and a lifting sleeve. The lifting sleeve is slidably connected to the lifting rail. The driving end of the lifting motor is connected to the blocking motor. The blocking motor is connected to the blocking plate. The blocking plate can extend below the lifting sleeve. A limiting plate is connected to the lower part of the lifting rail. A part of the blocking plate extends beyond the limiting plate.

[0015] Compared with the prior art, the present invention can at least achieve the following beneficial effects: The hydrocarbon generation simulation instrument for unconventional oil and gas resource evaluation provided by the present invention, when the hydrocarbon generation simulation experiment is completed and the sample chamber assembly needs to be unloaded, the rotating base located at the bottom of the abutment moves to the clamping position, and the telescopic mechanism operates to drive the three abutments arranged in a triangle to move from the initial position to the unscrewed position. The abutment tightly abuts the bottom cover of the reactor, and the three cross-sections of the bottom cover perfectly fit with the abutment to ensure a stable contact), and the rotating base abuts against the lower part of the abutment. At this time, the upper and lower ends of the abutment are both subjected to force, avoiding one end of the abutment being subjected to force, resulting in an unbalanced situation. Next, the rotating mechanism starts, driving the telescopic mechanism and the abutment as a whole to rotate in a predetermined direction (such as counterclockwise) at the unscrewed position, and gradually unscrewing the bottom cover. When the bottom cover is unscrewed, the bottom cover and the sample bin assembly thereon move downward under the downward pressure of the static rock pressure rod or the action of gravity or the drive of the telescopic device. At this time, the telescopic mechanism is controlled to drive the abutment to switch to the temporary storage position, that is, the abutment moves outward, and the bottom cover and the sample bin assembly thereon enter the accommodating space and contact the release mechanism, and then are controlled by the release mechanism so that the bottom cover and the sample bin assembly thereon just move into the accommodating space surrounded by the abutment, and prepare for subsequent unloading and acceptance. When the bottom cover and the sample bin assembly rotate to the appropriate position and are fully supported by the rotating base, the rotating base rotates to open the accommodating space. The release mechanism releases the sample bin assemblies one by one, and the storage mechanism is arranged under the abutment to receive the released sample bin assemblies one by one. During the whole process, the storage mechanism rotates the storage bin in a timely manner according to the instructions to ensure that it is located below the accommodating space to accurately accept the unloaded components, and the cycle operation is repeated until all components are unloaded.

[0016] With three abutments arranged in a triangle and perfectly matching the three cross-sections of the bottom cover of the analog instrument, and the rotating base simultaneously applying force to the upper and lower ends of the abutments, an extremely stable contact and support system is constructed to ensure that during the process of unloading the bottom cover and components, there will be no shaking, deviation and other unstable conditions due to uneven force. The unloading action is accurately controlled to ensure the integrity of the instrument and components, and to improve the unloading success rate and quality.

[0017] From the rotating base and the initial movement of the telescopic mechanism, to the positioning of the abutment, the rotation mechanism driving the bottom cover to be rotated out, to the use of the static rock pressure rod, gravity or telescopic device to assist the downward movement of the components, and the subsequent release mechanism and storage mechanism working together, the entire process is closely connected and automatically operated, and does not require manual work, which reduces labor intensity, saves time and effort, and improves experimental efficiency. The release mechanism and the storage mechanism work in conjunction, the release mechanism accurately controls the rhythm of releasing components one by one, and the storage mechanism rotates the storage bin to the corresponding position in time according to the instructions to accept, effectively avoiding the accumulation, confusion, and damage of components, and realizing the classification and orderly storage of unloaded parts. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] To more clearly illustrate the technical solutions in the embodiments of this specification or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments recorded in the embodiments of this specification. For those of ordinary skill in the art, other drawings can also be obtained based on these drawings.

[0019] Figure 1 Structural schematic diagram of the hydrocarbon generation simulation instrument for unconventional oil and gas resource evaluation provided by the present invention; Figure 2 Top view of the hydrocarbon generation simulation instrument for unconventional oil and gas resource evaluation provided by the present invention; Figure 3 Structural schematic diagram of the connection between the abutting plate and the rotating base of the hydrocarbon generation simulation instrument for unconventional oil and gas resource evaluation provided by the present invention; Figure 4 Structural schematic diagram of the connection between the telescopic mechanism and the abutting plate of the hydrocarbon generation simulation instrument for unconventional oil and gas resource evaluation provided by the present invention; Figure 5 For Figure 4 Enlarged view of area A in Figure 6 Schematic diagram of the state of the release mechanism, the bottom cover of the reaction kettle and the sample bin assembly above it during the discharging process of the hydrocarbon generation simulation instrument for unconventional oil and gas resource evaluation provided by the present invention.

[0020] Reference numerals: 10, bottom cover; 11, kettle body; 12, static rock pressure rod; 20, abutting member; 201, abutting plate; 30, telescopic mechanism; 301, lead screw mechanism; 302, fixed seat; 303, mounting seat; 304, telescopic member; 305, telescopic plate; 40, rotating mechanism; 401, circular track; 402, circular gear ring; 50, rotating base; 501, rotating cover; 502, rotating shaft; 503, rotating gear set; 504, cover driving motor; 60, release mechanism; 601, release motor; 602, release belt; 603, release bracket; 604, release track; 605, release slide plate; 70, storage mechanism; 701, storage motor; 702, storage bin; 80, blocking motor; 81, blocking plate; 82, lifting track; 83, lifting sleeve; 84, limiting plate; 90, sample bin assembly. Detailed implementation manners

[0021] In order to make the purpose, technical scheme and advantages of the embodiments of the present application clearer, the technical scheme in the embodiments of the present application will be clearly and completely described in combination with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all of the embodiments. It should be noted that, in the absence of conflict, the embodiments in the present disclosure and the features in the embodiments can be combined, separated, interchanged and / or rearranged with each other. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of this application.

[0022] In the accompanying drawings, the size and relative size of components may be exaggerated for clarity and / or descriptive purposes. When the exemplary embodiments may be implemented differently, a specific process sequence may be performed in a different order than described. For example, two successively described processes may be performed substantially simultaneously or in an order opposite to the order described. In addition, the same reference numerals represent the same components.

[0023] The terms used here are for the purpose of describing specific embodiments, and are not intended to be restrictive. As used here, unless the context clearly indicates otherwise, the singular forms "one (kind, person)" and "said (the)" are also intended to include plural forms. In addition, when the terms "comprise" and / or "include" and their variations are used in this specification, it is explained that there are stated features, integral bodies, steps, operations, parts, assemblies and / or their groups, but it is not excluded that there are or add one or more other features, integral bodies, steps, operations, parts, assemblies and / or their groups. It should also be noted that, as used here, the terms "substantially", "approximately" and other similar terms are used as approximate terms and not as degree terms, so that they are used to explain the inherent deviations of the measured values, calculated values ​​and / or the values ​​provided that will be recognized by those of ordinary skill in the art.

[0024] A specific embodiment of the present invention discloses a hydrocarbon generation simulation instrument for unconventional oil and gas resource evaluation, comprising: The reaction kettle comprises a kettle body 11, wherein the bottom end of the kettle body 11 is provided with a detachable bottom cover 10, and the interior of the kettle body 11 comprises a sample chamber assembly 90, wherein the source rock sample is contained in the sample chamber assembly 90; An analysis pipeline is connected to the sample chamber assembly and is configured to collect reaction products in the hydrocarbon generation simulation reaction process; various products (solid, liquid, and gas products) are collected through the analysis pipeline, and the output of liquid and gas products can be quantified, providing source rock evaluation parameters and providing key parameters for the evaluation of source rock hydrocarbon generation potential; The automatic unloading device is located below the reaction kettle and can remove the bottom cover after the simulation test is completed, and unload the sample chamber assembly 90 after the reaction.

[0025] In this embodiment, taking out the sample bin assembly 90 in the kettle body 11 can be understood as taking out all the components in the kettle body 11. For the convenience of description, the action of taking out all the sample bin assemblies 90 in the kettle body 11 can be simply referred to as "unloading".

[0026] As Figures 1 to 6 shown, the automatic unloading device in this embodiment includes: three abutting members 20 arranged in a triangle, a telescopic mechanism 30, a rotating mechanism 40, a rotating base 50, a releasing mechanism 60 and a storage mechanism 70; the bottom cover 10 of the reaction kettle has three cut surfaces, which can just abut against the abutting members 20, and the three abutting members 20 enclose an accommodating space; the telescopic mechanism 30 is connected to the abutting members 20 and is configured to be able to drive the abutting members 20 to switch to the temporary storage position and the screwing-out position. When the abutting members 20 are in the temporary storage position, the bottom cover 10 and the sample bin assembly 90 thereon can move into the accommodating space; the rotating mechanism 40 is connected to the telescopic mechanism 30 and is used to drive the telescopic mechanism 30 and the abutting members 20 to rotate at the screwing-out position; the rotating base 50 is arranged at the bottom of one abutting member 20. When the telescopic mechanism 30 drives the abutting members 20 to abut against the bottom cover 10, the rotating base 50 moves to the clamping position and abuts against the lower part of the abutting members 20, so that both the upper and lower ends of the abutting members 20 are stressed. After the bottom cover 10 is unloaded, it is also used to support the bottom cover 10 and the sample bin assembly 90 thereon; the releasing mechanism 60 is arranged on the abutting members 20 and is used to release the sample bin assemblies 90 one by one; the storage mechanism 70 is arranged below the abutting members 20 and is used to receive the released sample bin assemblies 90 one by one.

[0027] When it is necessary to unload the materials at the end of the hydrocarbon generation simulation experiment, the rotating base 50 responds quickly and moves to the clamping position. At the same time, the telescopic mechanism 30 is activated, pulling the three abutting members 20 arranged in a triangle from the initial position to the extended position. With a structure that precisely fits the three cut surfaces of the bottom cover 10 of the simulation instrument, the abutting members 20 achieve a tight and stable abutment. The rotating base 50 is docked with the lower part of the abutting members 20 to achieve a balanced stress state up and down, effectively avoiding the imbalance problem of the abutting members 20. Then, the rotating mechanism 40 operates, driving the telescopic mechanism 30 and the abutting members 20 in place to rotate as a whole in the preset counterclockwise direction, gradually screwing out the bottom cover 10. After the bottom cover 10 is screwed out, with the assistance of external forces such as the downward pressure of the static rock pressure bar 12, gravity, or the drive of the telescopic device, the bottom cover 10 and the sample chamber assembly 90 move downward. At this time, the telescopic mechanism 30 controls the abutting members 20 to switch to the temporary storage position (move outwards), enabling the bottom cover 10 and the sample chamber assembly 90 to smoothly enter the accommodation space formed by the enclosure of the abutting members 20, contact the release mechanism 60 and be controlled by it, preparing for the subsequent unloading process. When the bottom cover 10 and the sample chamber assembly 90 are transferred to a suitable position that the rotating base 50 can fully carry, the rotating base 50 rotates to open the accommodation space, and the release mechanism 60 sequentially releases the components (abbreviated as "parts") of the sample chamber assembly 90 one by one. The storage mechanism 70 precisely catches them below and rotates the storage bin 702 in a timely manner according to the instructions, and cycles until the unloading is completed. The triangular arrangement of the abutting members 20 matches the cut surface of the bottom cover 10, and cooperates with the rotating base 50 to achieve a stable and precise docking, laying a solid mechanical and structural foundation for the entire unloading process, preventing equipment shaking and component damage caused by poor contact and uneven stress, and ensuring the integrity of the instrument and the stability of unloading. Each mechanism collaborates in sequence, from the screwing out of the bottom cover 10, the storage of components to the release and storage, building a coherent automation framework, reducing manual intervention, significantly speeding up the unloading process, enhancing standardization, and facilitating the efficient turnover of the experiment. The enclosed accommodation space, as a key "transition zone", connects the screwing out of the bottom cover 10 and the release and storage of the components of the sample chamber assembly 90, orderly receiving components under different working conditions, and ensuring the orderly progress of the unloading operation.

[0028] The abutting member 20 includes an abutting plate 201, and the length of the abutting plate 201 is greater than the overall height of the bottom cover 10 and the sample chamber assembly 90 above it. With a design where the length of the abutting plate 201 exceeds the overall height of the bottom cover 10 and the components above it, it can better receive the components.

[0029] In some embodiments, the telescopic mechanism 30 includes a screw mechanism 301, a fixed seat 302, a mounting seat 303 and a telescopic member 304. The screw mechanism 301 is mounted on the mounting seat 303, the fixed seat 302 is connected to the screw mechanism 301, the telescopic member 304 is connected to the middle of the abutment plate 201, the mounting seat 303 is connected to the rotating mechanism 40, and the telescopic member 304 includes two relatively parallel telescopic plates 305, the telescopic plates 305 are arranged parallel to the horizontal plane, and are respectively connected to the two sides of the surface of the abutment plate 201. The screw mechanism 301 carried by the mounting seat 303 operates to drive the fixed seat 302 to linearly displace, and then the telescopic member 304 (composed of a double telescopic plate 305 parallel to the horizontal plane) connected to the middle of the abutment plate 201 is linked to carry out an action, so as to achieve the flexible switching of the abutment member 20 between the temporary storage and the rotation-out position, and the precise abutment operation of the bottom cover 10. During the entire unloading process, according to the requirements of the process nodes, the screw rod running stroke and the telescopic degree of the telescopic member 304 are finely adjusted, and the rotating mechanism 40 and other mechanisms are coordinated tacitly to ensure the smooth transfer of the bottom cover 10 and the components, and the orderly connection of the subsequent release and storage links. The high-precision transmission of the screw rod mechanism 301 ensures the high positioning accuracy of the telescopic mechanism 30, and the abutment member 20 can move accurately according to the preset trajectory to ensure close and timely contact with the bottom cover 10, improve the accuracy and stability of the unloading operation, and prevent the occurrence of jamming and unloading failures due to position deviation. The parallel double telescopic plate 305 structure evenly distributes the driving force to the abutment plate 201. Since the abutment plate 201 is set horizontally, its horizontal bearing capacity during rotation is also better.

[0030] In some embodiments, the rotating mechanism 40 includes a circular track 401, a circular gear ring 402, and a rotating driver. The circular gear ring 402 is rotatably connected to the circular track 401. The rotating driver drives the circular gear ring 402 to rotate by driving the rotating gear. The circular gear ring 402 is connected to the telescopic mechanism 30. The circular gear ring 402 rotates counterclockwise to drive the abutment plate 201 to rotate out of the bottom cover 10. When the abutment 20 holds the bottom cover 10 steadily and the rotating base is in place, the rotating driver drives the rotating gear to cause the meshing circular gear ring 402 to rotate smoothly on the circular track 401, driving the connected telescopic mechanism 30 and the abutment 20 to rotate counterclockwise as a whole, and gradually rotating the bottom cover 10 out. This rotation process follows the preset program, accurately controls the speed and angle, seamlessly connects the subsequent component downward movement, release and storage process, and ensures the continuity and smoothness of unloading. The gear ring transmission system has reliable performance, providing continuous and stable torque output for the bottom cover 10 to be rotated out, avoiding rotational jitter and jamming, ensuring that the bottom cover 10 and related components are completely and smoothly separated from the instrument body, and reducing the probability of component damage.

[0031] It should be noted that the sample chamber assembly 90 in this embodiment includes some necessary components inside the reactor such as a sample chamber, a spacer, and a seal. These components are all circular structures. The test principle of the hydrocarbon generation instrument and other structures not mentioned here are prior arts and will not be described in detail herein.

[0032] In some embodiments, the rotating base 50 includes a rotating cover 501, a rotating shaft 502, a rotating gear set 503, and a cover driving motor 504. The shape and size of the rotating cover 501 are the same as those of the bottom cover 10. The rotating cover 501 is connected to the rotating shaft 502. The rotating shaft 502 is rotatably connected to the bottom rotating groove of the abutting plate 201. The cover driving motor 504 is connected to the outer side of the abutting plate 201. The cover driving motor 504 drives the rotating shaft 502 to rotate through the rotating gear set 503, so as to drive the rotating cover 501 to rotate into and out of the bottom of the accommodation space. When the rotating cover 501 is located at the bottom of the accommodation space, the rotating cover 501 is parallel to the bottom cover 10 and the two are coaxial.

[0033] At the bottom of the abutting member 20, the rotating cover 501 is connected to the bottom rotating groove of the abutting plate 201 by means of the rotating shaft 502, and the cover driving motor 504 drives the rotating shaft 502 to operate through the rotating gear set 503. The rotating cover 501 is driven to rotate into the bottom of the accommodation space, and cooperates with the abutting member 20 to support the bottom cover 10 up and down. After the bottom cover 10 is unloaded and the components fall on it, according to the process instructions, the rotating cover 501 is rotated out under the drive of the motor, and operations such as cooperating with the release mechanism 60 to release the components and opening and closing the accommodation space of the rotating base are carried out in an orderly cycle until the unloading is completed.

[0034] The rotating cover 501 and the abutting member 20 cooperate up and down to support the bottom cover 10 and the components, disperse loads such as gravity and rotational force, strengthen the overall structural stability, prevent the components from slipping and the structure from deforming due to excessive single-point stress and unstable support, and ensure the safety and reliability of unloading.

[0035] The rotating cover 501 and the bottom cover 10 are designed with the same shape, size and coaxial parallel, which fits the shape of the bottom cover 10, optimizes the support contact effect, improves the support accuracy and stability, and is conducive to the stable placement of the components and the subsequent operation.

[0036] The storage mechanism 70 includes a storage motor 701, a storage bracket, and a storage bin 702. The storage bin 702 is connected to the storage bracket. The driving end of the storage motor 701 is connected to the storage bracket. There are multiple storage bins 702, which are distributed in a circle around the storage motor 701. The storage motor 701 can drive the storage bin 702 to rotate, and the circular path of the rotation of the storage bin 702 is exactly located below the accommodation space.

[0037] The storage motor 701 drives the storage bracket to drive the multiple storage bins 702 distributed in a circle around it to rotate, and the rotation path of the storage bins 702 accurately covers the bottom of the storage space. During the unloading process, according to the rhythm of releasing components one by one by the release mechanism 60, the storage motor 701 accurately controls the position of the storage bins 702 according to the instructions to ensure that the released components can accurately fall into the corresponding storage bins 702, so as to realize the orderly classification and storage of components, and repeat the cycle until all components are properly placed.

[0038] The multi-bin circular distribution is matched with a precise rotation mechanism to achieve classification and orderly storage of unloaded parts, avoid cluttered accumulation of parts, facilitate subsequent retrieval, statistics, and maintenance, and improve the convenience of experimental operations and the standardization of material management.

[0039] The rotation path of storage bin 702 is perfectly matched with the accommodation space, ensuring the timeliness and accuracy of the receiving action, preventing parts from falling and being misplaced, and improving the overall efficiency and stability of the unloading process.

[0040] In some embodiments, the release mechanism 60 includes a plurality of release mechanisms 60, which are arranged vertically along the middle of the abutment plate 201. The release mechanism 60 includes a release motor 601, a release bracket 603, a release belt 602, a release track 604, a release slide 605, and a release driver. The release motor 601 is connected to the outer side of the abutment plate 201, the release belt 602 covers the outside of the release bracket 603, and the release belt 602 forms a triangle. The release motor 601 is driven and connected with one corner of the triangle formed by the release belt 602. The side of the release belt 602 corresponding to the corner is penetrated in the accommodation space through a penetration hole opened on the side wall of the abutment plate 201. The release track 604 is vertically connected to the outer side of the abutment plate 201. The release slide 605 is slidably connected to the release track 604. The release driver drives the release slide 605 to slide. The release bracket 603 and the release motor 601 are connected to the release slide 605 through welding parts. The release mechanism 60 includes a peristaltic mode and a resistance mode. When the outer diameters of the bottom cover 10 and the sample chamber assembly 90 thereon are the same, the peristaltic mode is enabled. When the outer diameters of the bottom cover 10 and the sample chamber assembly 90 thereon are different, the resistance mode is enabled.

[0041] A plurality of release mechanisms 60 are longitudinally arranged along the middle part of the abutting plate 201. The release motor 601 is installed outside the abutting plate 201 to drive the release belt 602, which is triangular in structure and covers the release bracket 603, to operate (driving one corner of the connecting belt). One side of the belt extends into the accommodation space through the through hole on the side wall of the abutting plate 201. The release track 604 is vertically and fixedly connected to the outer side surface of the abutting plate 201, and the release sliding plate 605 is slidably engaged with it. The release driver drives the sliding plate to slide, thereby driving the release bracket 603 and the motor to move synchronously. During operation, according to the similarities and differences in the outer diameters of the bottom cover 10 and the sample bin assembly 90, the peristaltic mode (same outer diameter) or the abutting mode (different outer diameters) is enabled to carry out the discharging control. Some of the bottom cover 10 and the sample bin assembly 90 above it are set to have the same outer diameter structure, and some structures are set to have the same overall outer diameter, and some structures have a convex design. For example, the pressing ring and the lower end cover have an annular protrusion on the outer edge. At the same time, the end of the lower end cover also has a cylindrical protrusion that can be engaged with the bottom cover 10.

[0042] In some embodiments, the peristaltic mode includes adjusting the release belt 602 to the peristaltic position. When the bottom cover 10 and the sample bin assembly 90 thereon start to enter the accommodation space, the telescopic mechanism 30 drives the abutting plate 201 and the release belt 602 to abut against the bottom cover 10 and the sample bin assembly 90 thereon. The release motor 601 is started to drive the release belt 602 to rotate, assisting the bottom cover 10 and the sample bin assembly 90 thereon to move downward. When the bottom cover 10 and the sample bin assembly 90 thereon move to the position where they are supported by the rotating base 50, the release belt 602 stops rotating. After controlling the storage mechanism 70 to move into place, the rotating base 50 is controlled to open the accommodation space, and the release belt 602 corresponding to the lowermost component in the bottom cover 10 and the sample bin assembly 90 thereon is controlled to rotate, while the upper release belt 602 remains stationary, so as to unload the lowermost part into the storage mechanism 70 from the accommodation space. After unloading, the rotating base 50 is controlled to rotate into the accommodation space, and the release belt 602 is controlled to rotate to drive the bottom cover 10 and the sample bin assembly 90 thereon to continue to move downward onto the rotating base 50, and the unloading operation is repeated. When the peristaltic mode is enabled, the release belt 602 is first adjusted to the corresponding peristaltic position. The bottom cover 10 and the sample bin assembly 90 initially enter the accommodation space, and the telescopic mechanism 30 pushes the abutting plate 201 to closely abut against the release belt 602. The release motor 601 is then started to drive the release belt 602 to rotate, assisting the component to move downward smoothly. When the component moves to the position supported by the rotating base, the belt stops rotating. After the storage mechanism 70 is in place and the rotating base opens the accommodation space, the belt corresponding to the lowermost component is precisely controlled to rotate (the upper belt is stationary), and the component is unloaded into the storage bin 702; after unloading, the rotating base is reset, the belt restarts to rotate, driving the component to continue to move downward, and the cyclic operation continues to unload. In this embodiment, the number of components such as the release belt 602 is set according to parameters such as the length of the bottom cover 10 and the sample bin assembly 90, so that each release belt 602 can correspond to a main component for contact after the component descends. For components with a relatively narrow width such as the sealing ring, they can be not considered, and these components can fall with the main component such as the sample bin at the same time.

[0043] In the peristaltic mode, the belt cooperates with the telescopic mechanism 30 to provide appropriate assistance and precise control throughout the process of the component moving downward, ensuring that the components are separated in sequence and smoothly, avoiding rapid falling and collision damage, and adapting to the batch unloading requirements of components with the same outer diameter. It can accurately control the release timing and action of a single component, handle the component unloading in layers, achieve orderly storage, improve the unloading accuracy and material management level, and maintain the performance state of the components.

[0044] In some embodiments, the resistance mode includes unscrewing the bottom cover 10, directly pressing the bottom cover 10 and the sample bin assembly 90 thereon into the accommodation space onto the rotating base 50 through the static rock pressure rod 12, and then controlling the release driver to drive the release belt 602 to move and abut against the bottom cover 10 and the sample bin assembly 90 thereon. When unloading, the rotating base 50 is controlled to open the accommodation space, and the release belt 602 corresponding to the lowest component of the bottom cover 10 and the sample bin assembly 90 thereon is retracted, so that the component falls onto the storage mechanism 70 in place based on gravity. After controlling the storage mechanism 70 to switch to the next material receiving position, the unloading operation is repeated.

[0045] When the abutment mode is enabled, the bottom cover 10 and the sample chamber assembly 90 in the kettle body 11 are directly pressed into the receiving space onto the rotating base by means of the static rock pressure rod 12, and then the release driver is controlled to push the release belt 602 to abut the component. In the unloading stage, the rotating base opens the receiving space, and the release belt 602 corresponding to the lowermost component retracts, and the component falls into the storage mechanism 70 by gravity; after the storage mechanism 70 switches the material receiving position, the operation is repeated until the unloading is completed.

[0046] For components with different outer diameters, the static rock pressure rod is used to forcefully press in the combination with the release belt 602 to flexibly resist, effectively overcoming the obstacles of component shapes and sizes, ensuring smooth unloading and expanding the scope of application of equipment unloading. Rationally use gravity to achieve component drop storage, simplify the operation process, and combine the release belt 602 for precise control, while ensuring orderly unloading, improve unloading efficiency, and reduce equipment energy consumption and complexity.

[0047] In some embodiments, it also includes a discharge detector and a height reset mechanism, which are connected to the rotating mechanism 40. The height reset mechanism includes a lifting motor, a blocking motor 80, a blocking plate 81, a lifting rail 82 and a lifting sleeve 83. The lifting sleeve 83 is slidably connected to the lifting rail 82. The driving end of the lifting motor is connected to the blocking motor 80, and the blocking motor 80 is connected to the blocking plate 81. The blocking plate 81 can extend to the bottom of the lifting sleeve 83. The lower part of the lifting rail 82 is connected to the limiting plate 84, and part of the blocking plate 81 exceeds the limiting plate 84. When the discharge detector does not detect that the bottom component of the bottom cover 10 and the sample chamber assembly 90 thereon falls out of the accommodating space, it is determined that the bottom component is stuck with the upper component, and the lifting motor is controlled to drive the blocking plate 81 and the lifting sleeve 83 to move upward, and then the blocking motor 80 is controlled to retract, and the rotating mechanism 40 quickly falls to the limiting plate 84, generating an impact force to knock the bottom component out.

[0048] During the unloading process, the unloading detector monitors the falling state of the components in real time. When it detects that the lowermost component does not fall out normally (stuck with the previous component), it immediately feeds back a signal. After receiving the signal, the control unit drives the lifting motor to drive the grid baffle 81 and the lifting sleeve 83 to move upward along the lifting rail 82, and then controls the grid blocking motor 80 to retract the grid baffle 81, prompting the rotating mechanism 40 to drive the components to quickly fall and hit the limit plate 84. By means of the impact force, the stuck component is shaken off, and the normal operation of the unloading process is restored.

[0049] The unloading detector is linked with the height reset mechanism, monitors in real time, makes intelligent judgments and automatically processes component jamming faults, reduces manual troubleshooting intervention, ensures continuous and efficient unloading, and improves the operation stability and reliability of the equipment.

[0050] The unloading sensor can work based on the photoelectric principle. For example, it may include a light-emitting element and a receiving element. When the component passes through the detection area of the sensor during unloading, it will block the light, and the light signal received by the receiving element changes. By analyzing this change in the light signal, the position of the component can be determined. For example, in a hydrocarbon generation simulation instrument for unconventional oil and gas resource evaluation, when the component moves out of the accommodation space, it can be sensed.

[0051] There is also an unloading sensor based on the principle of electromagnetic induction. When a metal component (such as a metal component in a hydrocarbon generation simulation instrument) approaches the sensor, it will cause a change in the internal electromagnetic field of the sensor. The sensor senses the position of the component by detecting this change in the electromagnetic field. This method is more sensitive and accurate for detecting unloading components made of metal.

[0052] The above specific implementation manners further elaborate on the purpose, technical solutions, and beneficial effects of the present application. It should be understood that the above are only specific implementation manners of the present application and are not used to limit the protection scope of the present application. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A hydrocarbon generation simulation instrument for unconventional oil and gas resource evaluation, characterized in that: include: A reaction kettle, comprising a kettle body, a bottom cover is detachably provided at the bottom end of the kettle body, and a sample chamber assembly is provided inside the kettle body; An analysis pipeline connected to the sample chamber assembly and configured to collect reaction products; The automatic unloading device is arranged below the reaction kettle, and comprises three abutting members, a telescopic mechanism, a rotating mechanism, a rotating base, a releasing mechanism and a storing mechanism; the bottom cover of the reaction kettle has three cut surfaces; the telescopic mechanism is connected with the abutting member, and the abutting member is switched to a temporary storage position and a rotating position through the telescopic mechanism; the rotating mechanism is connected with the telescopic mechanism; the rotating base is arranged at the bottom of one of the abutting members; the releasing mechanism is arranged on the abutting member, and is used to release the sample chamber components in the accommodating space one by one; The storage mechanism is arranged below the abutment member and is used for receiving the released sample chamber components one by one.

2. The hydrocarbon generation simulation instrument for unconventional oil and gas resource evaluation according to claim 1, characterized in that: The abutment member comprises an abutment plate, the length of which is greater than the overall height of the bottom cover and the sample chamber assembly thereon.

3. The hydrocarbon generation simulation instrument for unconventional oil and gas resource evaluation according to claim 2, characterized in that: The telescopic mechanism includes a screw mechanism, a fixed seat, a mounting seat and a telescopic member, the screw mechanism is installed on the mounting seat, the fixed seat is connected to the screw mechanism, the telescopic member is connected to the middle part of the abutment plate, the mounting seat is connected to the rotating mechanism, and the telescopic member includes two telescopic plates arranged relatively parallel to each other, the telescopic plates are arranged parallel to the horizontal plane, and are respectively connected to both sides of the surface of the abutment plate.

4. The hydrocarbon generation simulation instrument for unconventional oil and gas resource evaluation according to claim 2, characterized in that: The rotating mechanism includes a circular track, a circular gear ring, and a rotating driver. The circular gear ring is rotatably connected to the circular track. The rotating driver drives the circular gear ring to rotate by driving the rotating gear. The circular gear ring is connected to the telescopic mechanism. The circular gear ring rotates counterclockwise to drive the abutment plate to rotate out of the bottom cover.

5. The hydrocarbon generation simulation instrument for unconventional oil and gas resource evaluation according to claim 2, characterized in that: The rotating base includes a rotating cover, a rotating shaft, a rotating gear set and a cover driving motor. The rotating cover is connected to the rotating shaft. The rotating shaft is rotatably connected in the bottom rotating groove of the abutment plate. The cover driving motor is connected to the outer side of the abutment plate.

6. The hydrocarbon generation simulation instrument for unconventional oil and gas resource evaluation according to claim 2, characterized in that: The storage mechanism includes a storage motor, a storage bracket and a storage bin. The storage bin is connected to the storage bracket. The driving end of the storage motor is connected to the storage bracket. A plurality of storage bins are distributed around the storage motor. The circular path of rotation of the storage bins is located below the accommodating space.

7. The hydrocarbon generation simulation instrument for unconventional oil and gas resource evaluation according to claim 2, characterized in that: The release mechanism comprises a plurality of release mechanisms, and the plurality of release mechanisms are vertically arranged along the middle portion of the abutment plate.

8. The hydrocarbon generation simulation instrument for unconventional oil and gas resource evaluation according to claim 7, characterized in that: The release mechanism includes a release motor, a release bracket, a release belt, a release track, a release slide, and a release driver. The release motor is connected to the outer side of the abutment plate, the release belt covers the outside of the release bracket, and the release motor is drivingly connected to one corner of the triangle formed by the release belt. The side of the release belt corresponding to the corner is penetrated into the accommodating space through a penetration hole opened in the side wall of the abutment plate. The release track is vertically connected to the outer side of the abutment plate, the release slide is slidably connected to the release track, and the release driver drives the release slide to slide. The release bracket and the release motor are connected to the release slide via welding parts.

9. The hydrocarbon generation simulation instrument for unconventional oil and gas resource evaluation according to claim 1, characterized in that: It also includes a discharge detector and a height resetting mechanism connected to the rotating mechanism.

10. The hydrocarbon generation simulation instrument for unconventional oil and gas resource evaluation according to claim 9, characterized in that: The height resetting mechanism includes a lifting motor, a blocking motor, a blocking plate, a lifting rail and a lifting sleeve. The lifting sleeve is slidably connected to the lifting rail. The driving end of the lifting motor is connected to the blocking motor. The blocking motor is connected to the blocking plate. The blocking plate can extend to the bottom of the lifting sleeve. The lower part of the lifting rail is connected to a limiting plate, and part of the blocking plate exceeds the limiting plate.

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