Hydrate synthesis and decomposition measurement experiment device

Abstract

The invention discloses a hydrate synthesis and decomposition measurement experiment device, which relates to the technical field of natural gas hydrate artificial synthesis sample test analysis, and comprises a reaction kettle, a water injection assembly, an inflation assembly, a gas collection assembly, a monitoring assembly, a temperature control assembly and an attitude control assembly, the reaction kettle is provided with a reaction cavity; the water injection assembly is communicated with the reaction cavity and used for filling water into the reaction cavity for pressurization; the inflating assembly is communicated with the reaction cavity and introduces reaction gas into the reaction cavity; the gas collection assembly is communicated with the reaction cavity and collects decomposition gas of the hydrate in the reaction cavity; the monitoring assembly is arranged in the reaction kettle and is used for monitoring the heat conductivity coefficient and the conductivity of the hydrate in the reaction cavity; the temperature control assembly is connected with the reaction kettle and is used for regulating and controlling the temperature in the reaction cavity; and the attitude control assembly is connected with the temperature control assembly or the reaction kettle and is used for driving the reaction kettle and the temperature control assembly to vertically overturn upwards. The accuracy and the reliability of experimental data are improved, and an important technical means is provided for researching the thermal-electric coupling characteristic in the hydrate phase change process.

Description

Technical Field

[0001] This invention relates to the field of testing and analysis technology for artificially synthesized natural gas hydrate samples, and in particular to an experimental apparatus for measuring the synthesis and decomposition of hydrates. Background Technology

[0002] As an important strategic energy source and carbon storage carrier, the accurate measurement of the physical properties (such as thermal conductivity and electrical conductivity) of natural gas hydrates is crucial for resource extraction, storage, transportation, and environmental assessment. Currently, hydrate research mainly focuses on synthesis and decomposition kinetics, but the simultaneous measurement of their thermal and electrical properties during phase transitions remains a technical bottleneck. Traditional experimental setups often employ single-parameter measurement methods, such as measuring only thermal conductivity or electrical conductivity. This results in asynchronous data collection and is typically conducted under static conditions, making it difficult to reflect the true characteristics of the dynamic phase transition process of hydrates. Summary of the Invention

[0003] The purpose of this invention is to provide an experimental apparatus for measuring the synthesis and decomposition of hydrates, thereby solving the problems existing in the prior art, improving the accuracy and reliability of experimental data, and providing an important technical means for studying the thermo-electric coupling characteristics in the phase transition process of hydrates.

[0004] To achieve the above objectives, the present invention provides the following solution: This invention provides an experimental apparatus for measuring the synthesis and decomposition of hydrates, comprising a reaction vessel, a water injection component, a gas filling component, a gas collecting component, a monitoring component, a temperature control component, and an attitude control component. The reaction vessel has a reaction chamber. The water injection component is connected to the reaction chamber and is used to fill and pressurize the reaction chamber with water. The gas filling component is connected to the reaction chamber and is used to introduce reaction gas into the reaction chamber. The gas collecting component is connected to the reaction chamber and is used to collect the decomposition gas of the hydrate in the reaction chamber. The monitoring component is disposed in the reaction vessel and is used to monitor the thermal conductivity and electrical conductivity of the hydrate in the reaction chamber. The temperature control component is connected to the reaction vessel and is used to regulate the temperature in the reaction chamber. The attitude control component is connected to the temperature control component or the reaction vessel and is used to drive the reaction vessel and the temperature control component to rotate vertically upwards.

[0005] Preferably, the water injection assembly is connected to the side wall of the reactor and communicates with the reaction chamber, the gas filling assembly is connected to the bottom of the reactor and communicates with the reaction chamber, and the gas collecting assembly is connected to the top of the reactor and communicates with the reaction chamber.

[0006] Preferably, the water injection assembly, the air filling assembly, and the air collecting assembly each include a capillary tube and a control valve. The capillary tube is connected to the reaction chamber to perform water injection, air filling, or air collecting accordingly. Each capillary tube is provided with a control valve, which can control the opening and closing of the corresponding capillary tube.

[0007] Preferably, the monitoring component includes a thermal conductivity probe sensor and an electrical conductivity probe sensor disposed at the bottom of the reactor. Both the thermal conductivity probe sensor and the electrical conductivity probe sensor can extend into the reaction chamber to detect the thermal conductivity and electrical conductivity of the hydrate in the reaction chamber, respectively.

[0008] Preferably, the thermal conductivity probe sensor includes a probe, a probe rod, and a first watertight connector; the two ends of the probe rod form a detachable sealed connection with the probe and the first watertight connector, respectively; the probe rod seal penetrates the reaction vessel, and the probe rod has a first pressure-resistant cavity inside; the probe extends into the reaction cavity to monitor the thermal conductivity; the probe and the first watertight connector are communicatively connected through a wire inside the first pressure-resistant cavity; the first watertight connector is used for communicative connection to external devices.

[0009] Preferably, the conductivity probe sensor includes a probe, a probe holder, and a second watertight connector. The probe holder is sealed to the probe and the second watertight connector at both ends, respectively. The probe holder seals through the reaction vessel and has a second pressure-resistant cavity inside. The probe extends into the reaction cavity to monitor conductivity. The probe and the second watertight connector are communicatively connected through wires inside the second pressure-resistant cavity. The second watertight connector is used for communicative connection to external devices.

[0010] Preferably, the temperature control component includes a jacket, which is detachably and sealingly fitted onto the outer peripheral wall of the reactor. The jacket is used to introduce a temperature-regulating fluid to adjust the temperature inside the reaction chamber. The attitude control component is fixedly connected to the jacket and can drive the reactor to rotate vertically through the jacket.

[0011] Preferably, the attitude control component includes a support and a flip control device. The flip control device is disposed on the support, and the temperature control component is rotatably connected to the support. The flip control device can drive the temperature control component and the reactor to flip vertically and can limit the flip angle.

[0012] Preferably, the reactor is detachably and sealed at both ends with an upper end cover and a lower end cover, the gas collection component is disposed on the upper end cover, and the gas filling component and the monitoring component are disposed on the lower end cover; the upper end cover is also provided with a lifting component.

[0013] Preferably, the upper end cover is further provided with a temperature monitoring device, a pressure monitoring device, and an exhaust assembly communicating with the reaction chamber; the lower end cover is further provided with a drainage assembly communicating with the reaction chamber; the temperature monitoring device and the pressure monitoring device are used to monitor the temperature and pressure information of the reaction chamber, respectively; the exhaust assembly enables the reaction chamber to be connected to or disconnected from the outside world to allow for exhaust, and the drainage assembly enables the reaction chamber to be connected to or disconnected from the outside world to allow for drainage.

[0014] The present invention achieves the following technical effects compared to the prior art: The hydrate synthesis and decomposition measurement experimental apparatus provided by this invention uses a water injection component and an aeration component to fill the reaction chamber of the reactor with water and gas to generate hydrates. When the hydrate decomposes, the decomposition gas is collected by a gas collection component for subsequent analysis. During the formation and decomposition of hydrates, a temperature control component adjusts the temperature in the reaction chamber in real time, and a monitoring component monitors the thermal conductivity and electrical conductivity of the hydrates in the reaction chamber in real time, achieving synchronous real-time dynamic measurement of thermal conductivity and electrical conductivity. This significantly improves the accuracy and reliability of experimental data and provides an important technical means for studying the thermo-electric coupling characteristics of hydrate phase transition processes. In addition, an attitude control component adjusts the attitude of the reactor and temperature control component by vertically rotating them, so that the temperature control component and the reactor are adjusted to the required state for experimental preparation or post-experiment cleanup. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a schematic diagram of the experimental apparatus for measuring the synthesis and decomposition of hydrates provided by the present invention; Figure 2 This is a cross-sectional view of the experimental apparatus for measuring the synthesis and decomposition of hydrates provided by the present invention; Figure 3 This is a schematic diagram of the upper end cover and its components provided by the present invention; Figure 4 This is a schematic diagram of the lower end cap and its components provided by the present invention; Figure 5 This is a schematic diagram of the flipping control device provided by the present invention; Figure 6 This is a schematic diagram of the thermal conductivity probe sensor structure provided by the present invention; Figure 7 This is a cross-sectional schematic diagram of the thermal conductivity probe sensor provided by the present invention; Figure 8 This is a schematic diagram of the conductivity probe sensor structure provided by the present invention; Figure 9 This is a cross-sectional schematic diagram of the conductivity probe sensor provided by the present invention.

[0017] In the diagram: 1-Support; 2-Tilting control device; 3-Large clamp; 4-Jacket; 5-Reaction vessel; 6-Small clamp; 7-Capillary tube one; 8-Upper end cover; 9-Lower end cover; 10-Upper end cover of jacket; 11-Lower end cover of jacket; 12-Capillary tube two; 13-Thermal conductivity probe sensor; 14-Capillary tube three; 15-Temperature sensor; 16-Pressure gauge; 17-Lifting ring; 18-Exhaust pipe; 19-Conductivity probe sensor ; 20-Drain pipe; 21-Protective cover; 22-Handwheel; 23-Support frame; 24-Connecting shaft; 25-Worm gear reducer; 26-Limiting plate; 27-Positioning block; 28-Limiting block; 29-Mounting plate; 30-Probe; 31-Probe rod; 32-First watertight connector; 33-Thermistor; 34-First pressure-resistant chamber; 35-Second pressure-resistant chamber; 36-Probe; 37-Probe base; 38-Second watertight connector. Detailed Implementation

[0018] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0019] The purpose of this invention is to provide an experimental apparatus for measuring the synthesis and decomposition of hydrates, thereby solving the problems existing in the prior art, improving the accuracy and reliability of experimental data, and providing an important technical means for studying the thermo-electric coupling characteristics in the phase transition process of hydrates.

[0020] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0021] Example 1 This embodiment provides an experimental apparatus for measuring the synthesis and decomposition of hydrates. Please refer to [link / reference]. Figures 1-9The system includes a reaction vessel 5, a water injection assembly, an aeration assembly, a gas collection assembly, a monitoring assembly, a temperature control assembly, and an attitude control assembly. The reaction vessel 5 has a reaction chamber. The water injection assembly is connected to the reaction chamber and is used to fill and pressurize the reaction chamber with water. The aeration assembly is connected to the reaction chamber and is used to introduce reaction gas into the reaction chamber. The gas collection assembly is connected to the reaction chamber and is used to collect the decomposition gas of the hydrate in the reaction chamber. The monitoring assembly is located in the reaction vessel 5 and is used to monitor the thermal conductivity and electrical conductivity of the hydrate in the reaction chamber. The temperature control assembly is connected to the reaction vessel 5 and is used to regulate the temperature in the reaction chamber. The attitude control assembly is connected to the temperature control assembly or the reaction vessel 5 and is used to drive the reaction vessel 5 and the temperature control assembly to rotate vertically.

[0022] The reaction chamber of reactor 5 is filled with water and gas through the water injection and gas filling components to generate hydrates. When the hydrates decompose, the decomposition gas is collected by the gas collection component for subsequent analysis. During the formation and decomposition of hydrates, the temperature control component adjusts the temperature in the reaction chamber in real time, and the monitoring component monitors the thermal conductivity and electrical conductivity of the hydrates in the reaction chamber in real time, realizing synchronous real-time dynamic measurement of thermal conductivity and electrical conductivity. This significantly improves the accuracy and reliability of experimental data and provides an important technical means for studying the thermo-electric coupling characteristics of hydrate phase transition processes. In addition, the attitude control component controls the vertical rotation of reactor 5 and temperature control component to adjust their attitudes so that they are adjusted to the required state for experimental preparation or post-experiment cleanup.

[0023] In the optional embodiments of this example, more preferably, the water injection assembly is connected to the side wall of the reactor 5 and communicates with the reaction chamber, the gas filling assembly is connected to the bottom of the reactor 5 and communicates with the reaction chamber, and the gas collecting assembly is connected to the top of the reactor 5 and communicates with the reaction chamber.

[0024] The water injection component is connected to the upper side wall of the reactor 5, and the gas filling component is connected to the bottom of the reactor 5, which facilitates water injection from the top and gas filling from the bottom, so as to achieve full mixing of water and gas to generate hydrates; the gas collection component is connected to the top of the reactor 5, so that the decomposed gas can rise and be collected.

[0025] In the optional scheme of this embodiment, more preferably, the water injection component, the air filling component, and the air collecting component all include capillary tubes and control valves. The capillary tubes are connected to the reaction chamber to perform water injection, air filling, or air collecting accordingly. Each capillary tube is equipped with a control valve, which can control the opening and closing of the corresponding capillary tube. The capillary tubes facilitate precise control of fluid flow.

[0026] Specifically, the water injection assembly includes capillary tube 7 and ball valve 1. Capillary tube 7 is installed at the upper end of the reactor 5 and connected to ball valve 1, which controls the on / off state. Capillary tube 7 is connected to an external liquid supply device for filling the reactor 5 with water and pressurizing it to control the pressure. The capillary tube is designed to facilitate precise flow control to adjust the water filling pressure. The gas filling assembly includes capillary tube 12 and ball valve 2. Capillary tube 12 is installed at the lower end of the reactor 5 and connected to ball valve 2, which controls the on / off state. Capillary tube 12 is connected to an external gas supply device for filling the reactor 5 with gas. The gas collecting assembly includes capillary tube 14 and ball valve 3. Capillary tube 14 is installed at the upper end of the reactor 5 and connected to ball valve 3, which controls the on / off state. Capillary tube 14 is connected to a gas collecting device for collecting decomposed gases.

[0027] In the optional embodiments of this example, more preferably, the monitoring components include a thermal conductivity probe sensor 13 and an electrical conductivity probe sensor 19 disposed at the bottom of the reactor 5. Both the thermal conductivity probe sensor 13 and the electrical conductivity probe sensor 19 can extend into the reaction chamber to detect the thermal conductivity and electrical conductivity of the hydrate in the reaction chamber, respectively. The thermal conductivity and electrical conductivity can be measured simultaneously during the dynamic process of hydrate synthesis and decomposition, which significantly improves the accuracy and reliability of experimental data and provides an important technical means for studying the thermo-electric coupling characteristics of hydrate phase transition.

[0028] In the optional embodiment, more preferably, the thermal conductivity probe sensor 13 includes a probe 30, a probe rod 31, and a first watertight connector 32; the two ends of the probe rod 31 form a detachable sealed connection with the probe 30 and the first watertight connector 32 respectively; the probe rod 31 seals through the reactor 5, and the probe rod 31 has a first pressure-resistant cavity 34 inside; the probe 30 extends into the reaction cavity to monitor the thermal conductivity; the probe 30 and the first watertight connector 32 are communicatively connected through wires inside the first pressure-resistant cavity 34; the first watertight connector 32 is used for communicative connection to external devices.

[0029] Specifically, such as Figure 6 and Figure 7As shown, the probe 30 includes an internal thermistor 33, and the probe rod 31 is a hollow structure with a first pressure-resistant cavity 34. The probe 30 is connected to one end of the probe rod 31 by a thread and is conventionally sealed. The probe rod 31 is sealed through the reactor 5 to prevent leakage. The first watertight connector 32 is connected to the other end of the probe rod 31 by a thread and is conventionally sealed. The thermistor 33 is installed inside the probe 30 and the probe rod 31. The thermistor 33 is connected to one end of the first watertight connector 32 that extends into the first pressure-resistant cavity 34 via a wire. The end of the first watertight connector 32 located outside the probe rod 31 is connected to the data acquisition board via a wire to realize data transmission. Specifically, the first pressure-resistant cavity 34 is vulcanized. This makes the thermal conductivity probe sensor 13 have sealing and pressure resistance to cope with the high-pressure environment inside the reactor.

[0030] In the optional embodiment, more preferably, the conductivity probe sensor 18 includes a probe 36, a probe base 37, and a second watertight connector 38. The probe base 37 is sealed to the probe 36 and the second watertight connector 38 at both ends. The probe base 37 seals through the reactor 5 and has a second pressure-resistant cavity 35 inside. The probe 36 extends into the reaction cavity to monitor conductivity. The probe 36 and the second watertight connector 38 are connected for communication through wires inside the second pressure-resistant cavity 35. The second watertight connector 38 is used for communication connection to external devices.

[0031] Specifically, such as Figure 8 and Figure 9 As shown, probe 36 is a conventional conductivity probe. Probe base 37 includes a connecting cylinder and a two-half structure. The two-half structure encircles one end of probe 36 and one end of connecting cylinder, and then the two halves are tightened together by bolts. The other end of connecting cylinder is sealed by threads and a second watertight connector 38. After the two halves are tightened, they are sealed and pass through the lower end of reactor 5. One end of the second watertight connector 38, which extends into the second pressure-resistant cavity 35, is connected to probe 36 via a wire, and the other end is connected to data acquisition board via a wire. The second pressure-resistant cavity 35 is vulcanized to provide sealing and high pressure resistance.

[0032] In the optional embodiment, more preferably, the temperature control component includes a jacket 4, which is detachably and sealed to the outer peripheral wall of the reactor 5. The jacket 4 is used to introduce a temperature-regulating fluid to adjust the temperature inside the reaction chamber. The attitude control component is fixedly connected to the jacket 4 and can drive the reactor 5 to rotate vertically through the jacket 4.

[0033] Specifically, the jacket 4 is fixedly fitted outside the reactor 5. The side wall of the jacket 4 has an inlet and an outlet for circulating water, i.e., temperature-regulating fluid, to regulate the temperature inside the reactor 5. The upper end and lower end of the jacket 4 are bolted to the upper end cover 10 and the lower end cover 11, respectively, and are connected and sealed by a sealing ring. The reactor 5 is fixed to the upper end cover 10 of the jacket by bolts, providing a place for the formation and decomposition of hydrates.

[0034] In the optional scheme of this embodiment, more preferably, the attitude control component includes a support 1 and a flip control device 2. The flip control device 2 is disposed on the support 1, and the temperature control component is rotatably connected to the support 1. The flip control device 2 can drive the temperature control component and the reaction vessel 5 to flip vertically and can limit the flip angle.

[0035] Specifically, bracket 1 is used to install the tilt control device 2 and the large clamp 3, and serves as a load-bearing device; tilt control device 2 is used to adjust the direction of reactor 5; one end of the large clamp 3 is mounted on bracket 1 through a bearing, and the other end is connected to tilt control device 2; jacket 4 is fixedly mounted on the large clamp 3 to achieve connection with tilt control device 2.

[0036] Specifically, the flipping control device 2 includes a protective cover 21, a handwheel 22, a support frame 23, a connecting shaft 24, a worm gear reducer 25, a limiting disc 26, a positioning block 27, a limiting block 28, and a mounting plate 29. The mounting plate 29 is fixed on the bracket 1 and is used to install the support frame 23, the worm gear reducer 25, and the protective cover 21. The protective cover 21 is used to cover the worm gear reducer 25, the limiting disc 26, the positioning block 27, the limiting block 28, etc., and plays a protective role. The support frame 23 and the worm gear reducer 25 are kept parallel during installation. The connecting shaft 24 passes through the support frame 23 and is connected to it through a bearing. One end of the connecting shaft 24 is used to fix the handwheel 22, and the other end is connected to the worm gear reducer 25. The limiting disc 26 is installed on the worm gear reducer 25. On the surface; there are two positioning blocks 27, which are bolted to the limiting plate 26 at a certain angle. The positioning blocks 27 can also be provided with arc-shaped holes, and bolts are set in the arc-shaped holes to connect the positioning blocks 27 and the limiting plate 26. Moreover, the positioning position of the positioning blocks 27 relative to the limiting plate 26 can be adjusted to adjust the limit tilting angle; the limiting block 28 is fixed to the extension shaft of the worm gear reducer 25, and a flat key is installed on the limiting block 28; the positioning blocks 27 position the limiting blocks 28 by blocking the flat key; by rotating the handwheel 22, the limiting blocks 28 are driven to rotate through the connecting shaft 24 and the worm gear reducer 25 to drive the reactor 5 to tilt vertically, and the tilting angle can be limited by the abutment of the limiting blocks 28 and the positioning blocks 27.

[0037] In addition, the flipping control device 2 can also use conventional electronically controlled rotation, such as a rotary motor, to control the flipping angle through a program.

[0038] In the optional scheme of this embodiment, more preferably, the reactor 5 is detachably and sealed with an upper end cover 8 and a lower end cover 9 at both ends, the gas collection component is disposed on the upper end cover 8, and the gas filling component and the monitoring component are disposed on the lower end cover 9; the upper end cover 8 is also provided with a lifting component.

[0039] The upper end cover 8 is connected to the reactor 5 via a small clamp 6 and is sealed to the reactor 5 via a sealing ring; the lower end cover 9 is connected to the reactor 5 via bolts and is sealed to the reactor 5 via a sealing ring; the lifting component, i.e., the lifting ring 17, is used for lifting during the transportation or installation of the experimental device.

[0040] In the optional scheme of this embodiment, more preferably, the upper end cover 8 is also provided with a temperature monitoring device, a pressure monitoring device and an exhaust assembly that connect to the reaction chamber; the lower end cover 9 is also provided with a drainage assembly that connects to the reaction chamber; the temperature monitoring device and the pressure monitoring device are used to monitor the temperature and pressure information of the reaction chamber, respectively; the exhaust assembly can enable the reaction chamber to be connected to or disconnected from the outside world so as to exhaust gas, and the drainage assembly can enable the reaction chamber to be connected to or disconnected from the outside world so as to drain water.

[0041] The temperature monitoring device uses a temperature sensor 15 to collect the temperature inside the reactor 5 during the synthesis and decomposition of hydrates; the pressure monitoring device uses a pressure gauge 16 to display and collect the pressure inside the reactor 5 during the synthesis and decomposition of hydrates; the exhaust assembly includes an exhaust pipe 18 and a ball valve thereon, used to exhaust air when the reactor 5 is filled with water and pressurized; the drainage assembly includes a drain pipe 20 and a ball valve thereon, used to drain the water inside the reactor 5 after the experiment or when cleaning the experimental apparatus.

[0042] The working process of this embodiment is as follows: At the start of the experiment, water was first introduced into reactor 5 through capillary tube 7 to expel air. After water continued to flow from exhaust pipe 18, the ball valve on exhaust pipe 18 was closed, and water was introduced into reactor 5 again until pressure gauge 16 displayed the specified pressure. Then, the ball valve on capillary tube 7 was closed, and water introduction was stopped. Next, methane gas was continuously and slowly introduced into reactor 5 through capillary tube 12, waiting for hydrate formation. This continued until a certain amount of methane gas was introduced into reactor 5, at which point the ball valve on capillary tube 12 was closed, and gas introduction was stopped. During hydrate formation, the thermal conductivity and electrical conductivity of the medium inside reactor 5 were continuously measured using thermal conductivity probe sensor 13 and electrical conductivity probe sensor 19. The temperature and pressure inside reactor 5 were measured using temperature sensor 15 and pressure gauge 16, and the experimental data were stored on a data acquisition board. During the experiment, cold water was continuously circulated in jacket 4 through the inlet and outlet on the side wall of jacket 4 to maintain a low-temperature environment inside reactor 5, which is conducive to hydrate formation. When the data from temperature sensor 15, pressure gauge 16, thermal conductivity probe sensor 13, and electrical conductivity probe sensor 19 all cease to change, it indicates that the hydrate formation in reactor 5 is complete, and the hydrate synthesis process measurement is finished. At this point, the ball valve on the exhaust pipe 18 is slowly opened to gradually reduce the pressure inside reactor 5, and the hydrate begins to decompose. Simultaneously, hot water is circulated into jacket 4 to raise the temperature inside reactor 5, promoting hydrate decomposition. During the hydrate decomposition process, the thermal conductivity and electrical conductivity of the medium inside reactor 5 are continuously measured using thermal conductivity probe sensor 13 and electrical conductivity probe sensor 19, while the temperature and pressure inside reactor 5 are measured using temperature sensor 15 and pressure gauge 16. The experimental data is stored on the data acquisition board. When the data from temperature sensor 15, pressure gauge 16, thermal conductivity probe sensor 13, and electrical conductivity probe sensor 19 all cease to change, it indicates that the hydrate decomposition in reactor 5 is complete, and the hydrate decomposition process measurement is finished.

[0043] Thus, the hydrate synthesis and decomposition measurement experimental apparatus provided in this embodiment adopts a modular design among its components, which is conducive to achieving precise temperature and pressure control functions and can simulate the hydrate formation and decomposition environment under different geological conditions. At the same time, the reactor 5 can adopt a compact structural design, which helps to reduce the influence of external factors on the measurement, improves experimental stability and repeatability, and is suitable for the rapid and efficient testing needs in laboratory research and engineering applications.

[0044] Specific examples have been used to illustrate the principles and implementation methods of this invention. The descriptions of the above embodiments are only for the purpose of helping to understand the method and core ideas of this invention. Furthermore, those skilled in the art will recognize that, based on the ideas of this invention, there will be changes in the specific implementation methods and application scope. Therefore, the content of this specification should not be construed as a limitation of this invention.

Claims

1. An experimental apparatus for measuring the synthesis and decomposition of hydrates, characterized in that: include: A reaction vessel, having a reaction chamber; The water injection assembly connects to the reaction chamber and is used to fill and pressurize the reaction chamber with water; An inflation assembly, connected to the reaction chamber and used to introduce reaction gas into the reaction chamber; A gas collection assembly, connected to the reaction chamber and used to collect the decomposition gases of hydrates within the reaction chamber; A monitoring component is installed in the reaction vessel and is used to monitor the thermal conductivity and electrical conductivity of the hydrate in the reaction chamber; A temperature control component is connected to the reactor and is used to regulate the temperature inside the reaction chamber; and An attitude control component is connected to the temperature control component or the reactor and is used to drive the reactor and the temperature control component to rotate vertically upwards.

2. The experimental apparatus for measuring the synthesis and decomposition of hydrates according to claim 1, characterized in that: The water injection assembly is connected to the side wall of the reactor and communicates with the reaction chamber; the gas filling assembly is connected to the bottom of the reactor and communicates with the reaction chamber; and the gas collecting assembly is connected to the top of the reactor and communicates with the reaction chamber.

3. The experimental apparatus for measuring the synthesis and decomposition of hydrates according to claim 2, characterized in that: The water injection assembly, the air filling assembly, and the air collecting assembly each include a capillary tube and a control valve. The capillary tube is connected to the reaction chamber to perform water injection, air filling, or air collecting. Each capillary tube is equipped with a control valve, which can control the opening and closing of the corresponding capillary tube.

4. The experimental apparatus for measuring the synthesis and decomposition of hydrates according to claim 1, characterized in that: The monitoring component includes a thermal conductivity probe sensor and an electrical conductivity probe sensor disposed at the bottom of the reactor. Both the thermal conductivity probe sensor and the electrical conductivity probe sensor can extend into the reaction chamber to detect the thermal conductivity and electrical conductivity of the hydrate in the reaction chamber, respectively.

5. The experimental apparatus for measuring the synthesis and decomposition of hydrates according to claim 4, characterized in that: The thermal conductivity probe sensor includes a probe, a probe rod, and a first watertight connector. The two ends of the probe rod are respectively connected to the probe and the first watertight connector in a detachable sealed manner. The probe rod seal penetrates the reaction vessel and has a first pressure-resistant cavity inside. The probe extends into the reaction cavity to monitor the thermal conductivity. The probe and the first watertight connector are communicatively connected through a wire inside the first pressure-resistant cavity. The first watertight connector is used for communicative connection to external devices.

6. The experimental apparatus for measuring the synthesis and decomposition of hydrates according to claim 5, characterized in that: The conductivity probe sensor includes a probe, a probe holder, and a second watertight connector. The probe holder is sealed to the probe and the second watertight connector at both ends, respectively. The probe holder seals through the reaction vessel and has a second pressure-resistant cavity inside. The probe extends into the reaction cavity to monitor conductivity. The probe and the second watertight connector are communicatively connected through wires inside the second pressure-resistant cavity. The second watertight connector is used for communicative connection to external devices.

7. The experimental apparatus for measuring the synthesis and decomposition of hydrates according to claim 1, characterized in that: The temperature control component includes a jacket, which is detachably and sealed to the outer peripheral wall of the reactor. The jacket is used to introduce a temperature-regulating fluid to adjust the temperature inside the reaction chamber. The attitude control component is fixedly connected to the jacket and can drive the reactor to rotate vertically through the jacket.

8. The experimental apparatus for measuring the synthesis and decomposition of hydrates according to claim 7, characterized in that: The attitude control component includes a support and a flip control device. The flip control device is mounted on the support, and the temperature control component is rotatably connected to the support. The flip control device can drive the temperature control component and the reactor to flip vertically and can limit the flip angle.

9. The experimental apparatus for measuring the synthesis and decomposition of hydrates according to claim 1, characterized in that: The reactor is detachably sealed with an upper end cover and a lower end cover at both ends. The gas collection component is located on the upper end cover, and the gas filling component and the monitoring component are located on the lower end cover. The upper end cover is also equipped with a lifting device.

10. The experimental apparatus for measuring the synthesis and decomposition of hydrates according to claim 9, characterized in that: The upper end cover is also provided with a temperature monitoring device, a pressure monitoring device, and an exhaust assembly that connect to the reaction chamber; the lower end cover is also provided with a drainage assembly that connects to the reaction chamber; the temperature monitoring device and the pressure monitoring device are used to monitor the temperature and pressure information of the reaction chamber, respectively; the exhaust assembly enables the reaction chamber to be connected to or disconnected from the outside world to allow for exhaust, and the drainage assembly enables the reaction chamber to be connected to or disconnected from the outside world to allow for drainage.

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