Injection device, method and terminal equipment for seabed storage of carbon dioxide

Abstract

The present application relates to an injection device, method, and terminal equipment for seabed carbon dioxide storage. The device includes a carbon dioxide transport mechanism, an injection pipeline, a fixed clamping and transferring mechanism, and an injection and storage control module. The carbon dioxide transport mechanism is used to store carbon dioxide and transport it to the sea; the injection pipeline is used to transmit carbon dioxide, and a detection element is provided at the pointed end of the injection pipeline; the fixed clamping and transferring mechanism is used to transfer the injection pipeline to a predetermined position in the seabed sediment layer; and the injection and storage control module is used to control the carbon dioxide transport mechanism to inject carbon dioxide into the seabed sediment layer through the injection pipeline for storage based on the injection pipeline reaching the predetermined position and the detected temperature meeting preset conditions. The device achieves carbon dioxide storage through the cooperation of the carbon dioxide transport mechanism, the injection pipeline, the fixed clamping and transferring mechanism, and the injection and storage control module, thereby improving the efficiency and safety of CO2 storage.

Description

Technical Field

[0001] The present application relates to the field of environmental treatment technology, and in particular to an injection device, method and terminal equipment for seabed storage of carbon dioxide. Background Art

[0002] Carbon dioxide (CO2) accounts for the majority of global greenhouse gas emissions. Since the mid-20th century, atmospheric CO2 concentrations have continued to climb, reaching a nearly 40% increase by the early 21st century. Excessive CO2 emissions are one of the main factors contributing to rising global temperatures, leading to global climate deterioration and causing extreme weather, droughts, floods, and smog. Therefore, controlling CO2 emissions is crucial to curbing global warming. Carbon capture, utilization, and storage (CCUS) technology can capture industrial CO2 emissions and store them for long periods, reducing their release into the atmosphere. The CO2 storage process, in particular, prevents CO2 from being released into the atmosphere and is crucial to mitigating the greenhouse effect.

[0003] The shortcomings of existing CO2 storage technologies are:

[0004] Low transport efficiency: The transport efficiency of CO2 is not high. When CO2 is injected into the sediment, its location cannot be effectively determined, which can easily cause CO2 leakage;

[0005] Operational complexity and safety risks of CO2 delivery devices: The delivery and injection of CO2 often require multiple independent steps and equipment, which increases operational complexity and potential safety risks;

[0006] CO2 storage is not safe: There is a risk of leakage when CO2 is stored on the seabed. Summary of the Invention

[0007] The embodiments of the present application provide an injection device, method and terminal equipment for seabed storage of carbon dioxide, which are used to solve the technical problems of low efficiency and low safety of existing CO2 storage technologies.

[0008] In order to achieve the above objectives, the embodiments of the present application provide the following technical solutions:

[0009] In one aspect, an injection device for seabed storage of carbon dioxide is provided, comprising:

[0010] a carbon dioxide transport mechanism for storing carbon dioxide and transporting the carbon dioxide to sea;

[0011] an injection pipe connected to the carbon dioxide transport mechanism and used to transport the carbon dioxide, wherein a detection element for temperature detection is provided at a pointed end of the injection pipe;

[0012] a fixed clamping and transporting mechanism connected to the injection pipe and used to transport the injection pipe to a predetermined position of the seabed sediment layer;

[0013] The injection and sealing control module is arranged on the carbon dioxide transportation mechanism and is used to control the carbon dioxide transportation mechanism to inject the carbon dioxide into the seabed sediment layer through the injection pipeline for sealing based on the injection pipeline reaching the predetermined position and the temperature detected by the detection element meeting the preset conditions.

[0014] Preferably, the fixed clamping and transporting mechanism comprises a suction pile and a clamping and moving assembly provided on the suction pile, and the suction pile is used to sink the clamping and moving assembly and the injection pipe to the seabed.

[0015] Preferably, the suction pile includes a suction pile body having an inner cavity and in the shape of an inverted cylinder, a first pipe through hole for accommodating the injection pipe is opened in the suction pile body, at least two vacuum holes connected to the inner cavity are opened on the suction pile body, a connecting column connected to the clamping and moving assembly is provided on the top surface of the suction pile body, and a connecting hole is provided on the connecting column.

[0016] Preferably, the clamping moving assembly is used to clamp the injection pipe and move it downward, and the clamping moving assembly is used to clamp the injection pipe and move it downward, and the clamping moving assembly includes a base, a driving element, a movable telescopic element, a clamping and fixing element and a clamping element, the base is installed on the top of the suction pile, the driving element is installed on the base, the movable telescopic element is connected to the driving element, the clamping and fixing element is fixedly connected to the movable telescopic element, a second pipe through hole for accommodating the injection pipe is opened in the clamping and fixing element and the clamping element, and the clamping element is movably clamped on the clamping and fixing element; the driving element drives the movable telescopic element to move downward, driving the clamping and fixing element to move downward, the clamping element clamps the injection pipe and drives the injection pipe to move downward; the driving element drives the movable telescopic element to move upward, driving the clamping and fixing element to move upward, and the clamping element releases the injection pipe.

[0017] Preferably, two arc-shaped clamping blocks are provided on the clamping element, and the two arc-shaped clamping blocks are movably clamped on the slide. A sliding column is provided on the outer wall surface of each arc-shaped clamping block, and a groove corresponding to the slide and an arc-shaped groove corresponding to the sliding column are provided on the clamping and fixing element.

[0018] Preferably, the fixed clamping and transporting mechanism comprises a metal frame mounted on the base and wrapping the clamping and moving assembly.

[0019] Preferably, the pointed end of the injection pipe is further provided with a plurality of injection holes.

[0020] In another aspect, a method for injecting carbon dioxide into the seabed for storage is provided, comprising the following steps:

[0021] The injection pipe is moved to a predetermined position in the seabed sediment layer using the fixed clamping and transporting mechanism in the injection device for seabed storage of carbon dioxide described above;

[0022] The temperature data of the environment in which the injection pipeline is located is obtained. If the temperature data meets the preset conditions, the carbon dioxide transport mechanism is controlled to input high-pressure carbon dioxide into the injection pipeline. The injection hole of the injection pipeline is opened to inject the carbon dioxide into the seabed sediment layer for sealing.

[0023] Preferably, the preset condition is 0-5°C.

[0024] In another aspect, a terminal device is provided, comprising a processor and a memory;

[0025] The memory is used to store program code and transmit the program code to the processor;

[0026] The processor is configured to execute the above-mentioned injection device for seabed storage of carbon dioxide according to instructions in the program code.

[0027] The injection device, method and terminal equipment for seabed storage of carbon dioxide include a carbon dioxide transport mechanism, an injection pipeline, a fixed clamping and transferring mechanism and an injection and storage control module. The carbon dioxide transport mechanism is used to store carbon dioxide and transport it to the sea. The injection pipeline is connected to the carbon dioxide transport mechanism and is used to transfer carbon dioxide. The tip end of the injection pipeline is provided with a detection element for temperature detection. The fixed clamping and transferring mechanism is connected to the injection pipeline and is used to transfer the injection pipeline to a predetermined position of the seabed sediment layer. The injection and storage control module is provided on the carbon dioxide transport mechanism and is used to control the carbon dioxide transport mechanism to inject carbon dioxide into the seabed sediment layer through the injection pipeline for storage based on the injection pipeline reaching the predetermined position and the temperature detected by the detection element meeting the preset conditions. As can be seen from the above technical solutions, the embodiments of the present application have the following advantages: the injection device for seabed storage of carbon dioxide injects carbon dioxide into the predetermined position and the seabed sediment layer that meets the preset conditions through the cooperation of the carbon dioxide transport mechanism, the injection pipeline, the fixed clamping and transferring mechanism and the injection and storage control module, thereby achieving carbon dioxide storage and improving the efficiency and safety of CO2 storage. It solves the technical problems of low efficiency and low safety of existing CO2 storage technologies. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following is a brief introduction to the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0029] Figure 1 This is a schematic structural diagram of the injection device for seabed storage of carbon dioxide according to an embodiment of the present application;

[0030] Figure 2 This is a schematic diagram of the three-dimensional structure of the fixed clamping and transfer mechanism in the injection device for seabed storage of carbon dioxide according to an embodiment of the present application;

[0031] Figure 3 This is a schematic diagram of the three-dimensional structure of a suction pile in the injection device for seabed storage of carbon dioxide according to an embodiment of the present application;

[0032] Figure 4 This is a schematic diagram of the exploded structure of the clamping and fixing elements in the injection device for seabed storage of carbon dioxide according to an embodiment of the present application;

[0033] Figure 5 This is a partial cross-sectional structural diagram of a clamping and fixing element and a clamping element in the injection device for seafloor storage of carbon dioxide according to an embodiment of the present application;

[0034] Figure 6 This is a flow chart of the steps of the injection method for seabed storage of carbon dioxide according to an embodiment of the present application;

[0035] Figure 7 This is a schematic diagram of the terminal device described in an embodiment of the present application. DETAILED DESCRIPTION

[0036] In order to make the purpose, features, and advantages of the invention of this application more obvious and easy to understand, the technical solutions in the embodiments of this application will be clearly and completely described below in conjunction with the drawings in the embodiments of this application. Obviously, the embodiments described below are only part of the embodiments of this application, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

[0037] In the description of the embodiments of the present application, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of the embodiments of the present application, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0038] In the embodiments of the present application, unless otherwise expressly specified or limited, the terms "installed," "connected," "connected," "fixed," etc. should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integration; mechanical connections, electrical connections; direct connections, or indirect connections through an intermediate medium; and can refer to internal communication between two components or interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in the embodiments of the present application based on specific circumstances.

[0039] The embodiments of the present application provide an injection device, method and terminal equipment for seabed storage of carbon dioxide, which solve the technical problems of low efficiency and low safety of existing CO2 storage technologies.

[0040] Example 1:

[0041] Figure 1 This is a schematic structural diagram of the injection device for seabed storage of carbon dioxide described in an embodiment of the present application.

[0042] like Figure 1 As shown, the embodiment of the present application provides an injection device for seabed storage of carbon dioxide, comprising:

[0043] a carbon dioxide transport mechanism 10, for storing carbon dioxide and transporting it to sea;

[0044] The injection pipe 20 is connected to the carbon dioxide transport mechanism 10 and is used to transport carbon dioxide. The tip end of the injection pipe 20 is provided with a detection element for temperature detection;

[0045] A fixed clamping and transporting mechanism 30 is connected to the injection pipe 20 and is used to transport the injection pipe 20 to a predetermined position of the seabed sediment layer;

[0046] The injection and storage control module 40 is arranged on the carbon dioxide transportation mechanism 10, and is used to control the carbon dioxide transportation mechanism 10 to inject carbon dioxide into the seabed sediment layer through the injection pipeline 20 for storage according to the injection pipeline 10 reaching a predetermined position and the temperature detected by the detection element meeting the preset conditions.

[0047] It should be noted that the predetermined position may be within a range of 50 to 100 meters into the seabed sediment layer, and the preset condition may be 0 to 5° C. The detection element may be a temperature sensor.

[0048] In this embodiment of the present application, the carbon dioxide transport mechanism 10 includes a transport vessel for storing carbon dioxide. The bottom of the transport vessel is provided with a connection port that is connected to the injection pipe 20. The injection pipe 20, located between the carbon dioxide transport mechanism 10 and the fixed clamping transfer mechanism 30, is wrapped with a hose 50.

[0049] It should be noted that the hose 50 is used to protect the injection pipe 20 from erosion on the seabed.

[0050] In the embodiment of the present application, one end of the injection pipe 20 is configured as a pointed tip to facilitate the insertion of the injection pipe 20 into the seabed sediment layer.

[0051] In the embodiment of the present application, the fixed clamping and conveying mechanism 30 is used to gradually sink the injection pipe 20 into the seabed sediment layer.

[0052] In an embodiment of the present application, the injection and sealing control module 40 is arranged on a transport ship. When the pointed end of the injection pipe 20 is pressed into a predetermined position of the seabed sediment layer, the injection and sealing control module 40 detects the temperature data of the environment at the predetermined position according to the detection element at the pointed end of the injection pipe 20. When the temperature data meets the preset conditions (that is, the temperature data is in the range of 0 to 5°C), it indicates that the seabed sediment layer meets the conditions for the formation of carbon dioxide hydrates. The carbon dioxide transport mechanism 10 is controlled to inject carbon dioxide into the seabed sediment layer through the injection pipe 20, thereby sealing the carbon dioxide in the sediment layer.

[0053] The present application provides a carbon dioxide seabed storage injection device, comprising a carbon dioxide transport mechanism, an injection pipeline, a fixed clamping and transferring mechanism, and an injection and sealing control module. The carbon dioxide transport mechanism is used to store carbon dioxide and transport it to the sea. The injection pipeline is connected to the carbon dioxide transport mechanism and is used to transmit carbon dioxide. The tip end of the injection pipeline is provided with a detection element for temperature detection. The fixed clamping and transferring mechanism is connected to the injection pipeline and is used to transfer the injection pipeline to a predetermined position in the seabed sediment layer. The injection and sealing control module is provided on the carbon dioxide transport mechanism and is used to control the carbon dioxide transport mechanism to inject carbon dioxide into the seabed sediment layer through the injection pipeline for sealing based on the injection pipeline reaching the predetermined position and the temperature detected by the detection element meeting a preset condition. The carbon dioxide seabed storage injection device achieves carbon dioxide sealing by injecting carbon dioxide into the predetermined position and into the seabed sediment layer that meets the preset conditions through the cooperation of the carbon dioxide transport mechanism, the injection pipeline, the fixed clamping and transferring mechanism, and the injection and sealing control module. This improves the efficiency and safety of CO2 storage and solves the technical problems of low efficiency and low safety of existing CO2 storage technologies.

[0054] Figure 2 This is a schematic diagram of the three-dimensional structure of the fixed clamping and transfer mechanism in the injection device for seabed storage of carbon dioxide according to an embodiment of the present application. Figure 3 This is a schematic diagram of the three-dimensional structure of the suction pile in the injection device for seabed storage of carbon dioxide described in an embodiment of the present application.

[0055] like Figure 2 and Figure 3 As shown, in one embodiment of the present application, the fixed clamping and transporting mechanism 30 includes a suction pile 101 and a clamping and moving assembly 102 disposed on the suction pile 101. The suction pile 101 is used to sink the clamping and moving assembly 102 and the injection pipe 20 to the seabed. Figure 3 As shown, the suction pile 101 includes a suction pile body 31 having an inner cavity and in the shape of an inverted cylinder. A first pipe through hole 32 for accommodating the injection pipe 20 is provided in the suction pile body 31. At least two vacuum holes 311 that are connected to the inner cavity are provided on the suction pile body 31. A connecting column 312 connected to the clamping and moving component 102 is provided on the top surface of the suction pile body 31, and a connecting hole 313 is provided on the connecting column 312.

[0056] It should be noted that bolts or screws are inserted into the connection holes 313 of the connection columns 312 to secure the clamping and moving assembly to the suction pile body 31. In this embodiment, the suction pile body 31 adopts an inverted cylindrical structure, which prevents CO2 leakage and overflow, ensuring environmental safety and ecological balance. The suction pile body 31 maintains a vacuum state within its interior through the vacuum hole 311. The inverted cylindrical structure refers to a cylindrical shape with a closed upper end and an open lower end. A suction pile is a rigid, short pile that uses water pressure to press the suction pile body 31 into sedimentary soil on the seabed. The suction pile is sunk to the seabed by the pressure difference between the internal pressure of the suction pile body 31 and the external air or water pressure. This creates an internal and external pressure differential under the action of the suction pile body 31. This negative pressure then absorbs sediment, causing the suction pile to continue sinking, allowing the suction pile body 31 to stably enter the ground, presenting an inverted cylindrical shape to prevent CO2 from overflowing.

[0057] Figure 4 This is a schematic diagram of the exploded structure of the clamping and fixing elements in the injection device for seafloor storage of carbon dioxide according to an embodiment of the present application. Figure 5 This is a partial cross-sectional structural schematic diagram of the clamping and fixing elements and the clamping elements in the injection device for seafloor storage of carbon dioxide described in an embodiment of the present application.

[0058] like Figure 2 、 Figure 4 and Figure 5 As shown, in one embodiment of the present application, the clamping moving assembly 102 is used to clamp the injection pipe 20 and move it downward. The clamping moving assembly 102 includes a base 33, a driving element 34, a movable telescopic element 35, a clamping and fixing element 36 and a clamping element. The base 33 is installed on the top of the suction pile, the driving element 34 is installed on the base 33, the movable telescopic element 35 is connected to the driving element 34, the clamping and fixing element 36 is fixedly connected to the movable telescopic element 35, and a second pipe through hole 361 for accommodating the injection pipe is opened in the clamping and fixing element 36 and the clamping element; the clamping element is movably connected to the clamping and fixing element 36; the driving element 34 drives the movable telescopic element 35 to move downward, driving the clamping and fixing element 36 to move downward, the clamping element clamps the injection pipe 20 and drives the injection pipe 20 to move downward; the driving element 34 drives the movable telescopic element 35 to move upward, driving the clamping and fixing element 36 to move upward, and the clamping element releases the injection pipe 50.

[0059] It should be noted that the clamping and moving assembly includes a hydraulic oil tank 37 for providing a power source to the driving element 34. The fixed clamping and transporting mechanism includes a metal frame 38 mounted on the base 33 and enclosing the clamping and moving assembly. The metal frame 38 protects the clamping and moving assembly from interference from external factors. The driving element 34 can be a hydraulic cylinder, and the movable telescopic element 35 can be a push rod. The hydraulic oil tank 37 is used to store the power oil (such as engine oil, mineral oil, and petroleum, etc.) that provides power to the driving element 34. The hydraulic oil tank 37 provides power oil to the driving element 34 through a pipe 371. The driving element 34 drives the movable telescopic element 35 to move up and down, thereby driving the injection pipe 20 placed on the clamping and fixed element 36 to be pressed into the seabed sediment layer. A hydraulic pump 39 is provided on the pipe 371. In this embodiment, when the clamping and moving assembly 102 is installed on the suction pile 101, the center of the second pipe through hole 361 and the center of the first pipe through hole 32 are on the same center line, which facilitates the placement and fixation of the injection pipe 20.

[0060] In the embodiment of the present application, the injection device for the seabed storage of carbon dioxide is an injection system of an injection pipe 20 composed of a clamping and fixing element 36, a movable and telescopic element 35, a driving element 34, a hydraulic oil tank 37, a suction pile body 31 and a hydraulic pump 39. The injection system can accurately control the injection depth of the injection pipe 20 to ensure that CO2 is effectively stored in the sediment, thereby minimizing the impact on the seabed ecosystem. In contrast, the existing technology is often not precise enough in controlling the injection depth, which may lead to inefficiency or damage to the environment. In addition, the bottom leakage prevention design of the injection device for the seabed storage of carbon dioxide is realized by the suction pile body 31 in the shape of an inverted cylinder, which also significantly improves the level of environmental protection and ensures the safe storage of carbon dioxide.

[0061] like Figure 4 and Figure 5 As shown, two arc-shaped clamping blocks 51 are provided on the clamping element, and the two arc-shaped clamping blocks 51 are movably clamped on the slide 52. A sliding column 53 is provided on the outer wall surface of each arc-shaped clamping block 51, and a groove 363 corresponding to the slide 52 and an arc-shaped groove 362 corresponding to the sliding column 53 are provided on the clamping fixing element 36.

[0062] It should be noted that the two ends of each arc-shaped clamping block 51 are movably arranged in the movable groove 55 of the slide 52 through the connecting clamping column 54. In this embodiment, the arc-shaped groove 362 is an arc-shaped groove that is wide at the top and narrow at the bottom. When the driving element 34 drives the movable telescopic element 35 to move downward, driving the clamping and fixing element 36 to move downward, the clamping element moves upward relatively, and the two arc-shaped clamping plates 51 move inward so that the clamping element clamps the injection pipe 20. When the driving element 34 drives the movable telescopic element 35 to move upward, driving the clamping and fixing element 36 to move upward, the clamping element moves downward relatively, and the two arc-shaped clamping plates 51 move outward so that the clamping element releases the injection pipe 20. Among them, the clamping and fixing element 36 includes two fixedly connected fixing elements. The two arc-shaped clamping plates 51 form a second pipe through hole 361.

[0063] like Figure 1 As shown, in one embodiment of the present application, a plurality of injection holes 21 are further provided at the pointed end of the injection pipe 20 .

[0064] It should be noted that the pointed end of the injection pipe 20 is provided with at least 6 injection holes 21, and the shape of the injection holes 21 is preferably a small circular hole. When the pointed end of the injection pipe 20 reaches the preset position and the temperature of the environment in which it is located meets the preset conditions, the injection and storage control module 40 injects at least 15Mpa of carbon dioxide into the injection pipe 20, so that the injection holes 21 are opened. The carbon dioxide penetrates into the seabed sediment layer in the environment where the pointed end of the injection pipe 20 is located through the injection holes 21. The high-pressure carbon dioxide will cause tiny cracks in the seabed sediment layer, thereby allowing more CO2 to be injected. In the low-temperature and high-pressure seabed sediment environment, the injected CO2 may be converted into hydrates, thereby achieving stable long-term storage of carbon dioxide.

[0065] In an embodiment of the present application, the injection device for subsea carbon dioxide storage is placed in seawater via a hose 6. When the fixed clamping and transporting mechanism 30 reaches the subsea sediment layer, the fixed clamping and transporting mechanism 20 transports the injection pipe 20 to a predetermined position in the subsea sediment layer. This subsea carbon dioxide storage injection device injects carbon dioxide into the subsea sediment layer for storage, taking into account the unique challenges of the deep-sea environment, such as high pressure, low temperature, and the stability of subsea sediments. This can effectively reduce atmospheric carbon dioxide concentrations and combat the effects of global warming.

[0066] It should be noted that the CO2 subsea storage injection device uses a CO2 transport mechanism to transport CO2, the injection and storage control module cooperates with the injection pipeline to inject CO2, and a fixed clamping and transfer mechanism is used to fix the injection pipeline. This makes the CO2 subsea storage injection device designed as an integrated and efficient system, significantly improving operational efficiency and reliability. Compared with the existing technology, the CO2 transport and injection of the existing technology are usually carried out separately, which not only increases the complexity of operation but also increases the risk of equipment failure and operational errors. The integrated design of the CO2 subsea storage injection device simplifies the entire process, reduces potential error points, and thus improves the safety and reliability of the entire CO2 subsea storage injection device. The CO2 subsea storage injection device directly solves the problems of low efficiency and high environmental risks existing in the existing technology, making the CO2 subsea storage injection device have significant technical advantages in the field of subsea CO2 storage.

[0067] Example 2:

[0068] Figure 6 This is a flow chart of the steps of the injection method for seabed storage of carbon dioxide described in an embodiment of the present application.

[0069] like Figure 6 As shown, the embodiment of the present application provides a method for injecting carbon dioxide into the seabed, comprising the following steps:

[0070] S1. Using the above-mentioned carbon dioxide seabed storage injection device fixed clamping transfer mechanism to transfer the injection pipe to a predetermined position of the seabed sediment layer;

[0071] S2. Obtain temperature data of the environment where the injection pipeline is located. If the temperature data meets preset conditions, control the carbon dioxide transport mechanism to input high-pressure carbon dioxide into the injection pipeline. The injection hole of the injection pipeline is opened to inject the carbon dioxide into the seabed sediment layer for sealing.

[0072] In the embodiment of the present application, the preset condition is 0-5°C.

[0073] It should be noted that the details of the injection device for subsea carbon dioxide storage in the method of Example 2 have been described in Example 1 and will not be further elaborated in this example. In this example, the injection method for subsea carbon dioxide storage involves moving an injection pipeline to a predetermined position using the injection device for subsea carbon dioxide storage. When the temperature of the environment surrounding the pointed end of the injection pipeline meets preset conditions, high-pressure carbon dioxide is injected into the injection pipeline and then infiltrated into the subsea sediment layer through the injection hole of the injection pipeline. In the low-temperature, high-pressure environment of the subsea sediment layer, the injected CO2 may be converted into hydrates, thereby achieving stable, long-term storage of the carbon dioxide.

[0074] Example 3:

[0075] Figure 7 This is a schematic diagram of the terminal device described in an embodiment of the present application.

[0076] like Figure 7 As shown, an embodiment of the present application provides a terminal device, including a processor and a memory;

[0077] A memory, configured to store program codes and transmit the program codes to a processor;

[0078] The processor is configured to execute the above-mentioned injection method for seabed storage of carbon dioxide according to instructions in the program code.

[0079] It should be noted that the processor is configured to execute the steps of the aforementioned embodiment of the injection method for subsea storage of carbon dioxide according to the instructions in the program code. Alternatively, the processor implements the functions of the modules / units in the aforementioned system / device embodiments when executing the computer program.

[0080] For example, a computer program may be divided into one or more modules / units, one or more of which are stored in a memory and executed by a processor to complete the present application. One or more modules / units may be a series of computer program instruction segments capable of performing specific functions, and the instruction segments are used to describe the execution process of the computer program in a terminal device.

[0081] Terminal devices can be computing devices such as desktop computers, laptops, PDAs, and cloud servers. Terminal devices may include, but are not limited to, processors and memory. Those skilled in the art will appreciate that this does not constitute a limitation on terminal devices and may include more or fewer components than shown, or a combination of certain components, or different components. For example, terminal devices may also include input / output devices, network access devices, buses, and the like.

[0082] The processor may be a central processing unit (CPU), other general-purpose processors, digital signal processors (DSP), application-specific integrated circuits (dSIC), field-programmable gate arrays (FPGAs), other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc. A general-purpose processor may be a microprocessor or any conventional processor, etc.

[0083] The memory can be an internal storage unit of a terminal device, such as a hard drive or memory of the terminal device. The memory can also be an external storage device of the terminal device, such as a plug-in hard drive equipped with the terminal device, a smart memory card (SMC), a secure digital (SD) card, a flash memory card, etc. Furthermore, the memory can include both the internal storage unit of the terminal device and an external storage device. The memory is used to store computer programs and other programs and data required by the terminal device. The memory can also be used to temporarily store data that has been output or is about to be output.

[0084] Those skilled in the art will clearly understand that, for the convenience and brevity of description, the specific working processes of the systems, devices and units described above can refer to the corresponding processes in the aforementioned method embodiments and will not be repeated here.

[0085] In the several embodiments provided in this application, it should be understood that the disclosed systems, devices and methods can be implemented in other ways. For example, the device embodiments described above are merely schematic. For example, the division of the units is merely a logical function division. In actual implementation, there may be other division methods, such as multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be an indirect coupling or communication connection through some interfaces, devices or units, which can be electrical, mechanical or other forms.

[0086] The units described as separate components may or may not be physically separate, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed across multiple network units. Some or all of these units may be selected to achieve the purpose of this embodiment according to actual needs.

[0087] In addition, the functional units in the various embodiments of the present application may be integrated into a single processing unit, or each unit may exist physically separately, or two or more units may be integrated into a single unit. The aforementioned integrated units may be implemented in the form of hardware or software functional units.

[0088] If the integrated unit is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present application is essentially or the part that contributes to the prior art or all or part of the technical solution can be embodied in the form of a software product, and the computer software product is stored in a storage medium, including a number of instructions for enabling a computer device (which can be a personal computer, a server, or a network device, etc.) to execute all or part of the steps of the method described in each embodiment of the present application. The aforementioned storage medium includes: various media that can store program codes, such as a U disk, a mobile hard disk, a read-only memory (ROM), a random access memory (RdM), a magnetic disk or an optical disk.

[0089] As described above, the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them. Although the present application has been described in detail with reference to the above embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the above embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims

1. A carbon dioxide seabed storage injection device, characterized in that: include: a carbon dioxide transport mechanism for storing carbon dioxide and transporting the carbon dioxide to sea; an injection pipe connected to the carbon dioxide transport mechanism and used to transport the carbon dioxide, wherein a detection element for temperature detection is provided at a pointed end of the injection pipe; a fixed clamping and transporting mechanism connected to the injection pipe and used to transport the injection pipe to a predetermined position of the seabed sediment layer; an injection and storage control module, disposed on the carbon dioxide transport mechanism, for controlling the carbon dioxide transport mechanism to inject the carbon dioxide into the seabed sediment layer through the injection pipeline for storage based on the injection pipeline reaching the predetermined position and the temperature detected by the detection element meeting a preset condition; The fixed clamping and transporting mechanism includes a suction pile and a clamping and moving assembly arranged on the suction pile, wherein the suction pile is used to sink the clamping and moving assembly and the injection pipe to the seabed; The clamping moving assembly is used to clamp the injection pipe and move it downward. The clamping moving assembly includes a base, a driving element, a movable telescopic element, a clamping and fixing element, and a clamping element. The base is installed on the top of the suction pile, the driving element is installed on the base, the movable telescopic element is connected to the driving element, and the clamping and fixing element is fixedly connected to the movable telescopic element. A second pipe through hole for accommodating the injection pipe is provided in the clamping and fixing element and the clamping element, and the clamping element is movably clamped on the clamping and fixing element; the driving element drives the movable telescopic element to move downward, driving the clamping and fixing element to move downward, the clamping element clamps the injection pipe and drives the injection pipe to move downward; the driving element drives the movable telescopic element to move upward, driving the clamping and fixing element to move upward, and the clamping element releases the injection pipe.

2. The injection device for seabed storage of carbon dioxide according to claim 1, characterized in that: The suction pile includes a suction pile body having an inner cavity and in the shape of an inverted cylinder. A first pipe through hole for accommodating the injection pipe is provided in the suction pile body. At least two vacuum holes connected to the inner cavity are provided on the suction pile body. A connecting column connected to the clamping and moving assembly is provided on the top surface of the suction pile body, and a connecting hole is provided on the connecting column.

3. The injection device for seabed storage of carbon dioxide according to claim 1, characterized in that: Two arc-shaped clamping blocks are provided on the clamping element, and the two arc-shaped clamping blocks are movably clamped on the slide. A sliding column is provided on the outer wall surface of each arc-shaped clamping block, and a groove corresponding to the slide and an arc-shaped groove corresponding to the sliding column are provided on the clamping and fixing element.

4. The injection device for seabed storage of carbon dioxide according to claim 1, characterized in that: The fixed clamping and transporting mechanism includes a metal frame mounted on the base and wrapping the clamping and moving assembly.

5. The injection device for seabed storage of carbon dioxide according to claim 1, characterized in that: The pointed end of the injection pipe is also provided with a plurality of injection holes.

6. A method for injecting carbon dioxide into the seabed for storage, characterized in that: The following steps are involved: The injection pipe is moved to a predetermined position in the seabed sediment layer using the fixed clamping and transferring mechanism in the injection device for seabed storage of carbon dioxide according to any one of claims 1 to 5; The temperature data of the environment in which the injection pipeline is located is obtained. If the temperature data meets the preset conditions, the carbon dioxide transport mechanism is controlled to input high-pressure carbon dioxide into the injection pipeline. The injection hole of the injection pipeline is opened to inject the carbon dioxide into the seabed sediment layer for sealing.

7. The method for injecting carbon dioxide for seabed storage according to claim 6, characterized in that: The preset condition is 0~5℃.

8. A terminal device, characterized in that: including a processor and a memory; The memory is used to store program code and transmit the program code to the processor; The processor is configured to execute the injection method for seabed storage of carbon dioxide according to claim 6 according to the instructions in the program code.

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