Carbon dioxide capture method and apparatus

Abstract

The invention is suitable for the technical field of gas treatment, and particularly relates to a carbon dioxide capturing method and equipment. Analyzing based on the carbon dioxide capture information, and determining whether the carbon dioxide capture equipment is in a first state; in a case where it is determined that the carbon dioxide capture device is in the first state, a capture action is performed. According to the carbon dioxide capture method provided by the invention, the problem that in the traditional carbon dioxide capture process, operation is often based on manual monitoring or a fixed operation process, when the capture environment changes, the environment change cannot be responded in time, and the capture effect is delayed can be solved.

Description

Technical Field

[0001] This application belongs to the technical field of gas treatment, and particularly relates to a carbon dioxide capture method and device. Background Art

[0002] Currently, the global energy structure is still mainly based on fossil fuels such as coal, oil, and natural gas. During the combustion of fossil fuels, a large amount of carbon dioxide is released. For example, the carbon dioxide emissions from coal combustion are relatively high. Therefore, to achieve the emission reduction goals in the energy field, effective carbon dioxide capture technologies must be developed.

[0003] In traditional carbon dioxide capture processes, they often operate based on manual monitoring or fixed operating procedures. When the capture environment changes, they cannot respond to the environmental changes in a timely manner, resulting in a delay in the capture effect. Summary of the Invention

[0004] The embodiments of this application provide a carbon dioxide capture method and device, which can solve the problem that in traditional carbon dioxide capture processes, they often operate based on manual monitoring or fixed operating procedures. When the capture environment changes, they cannot respond to the environmental changes in a timely manner, resulting in a delay in the capture effect.

[0005] In a first aspect, the embodiments of this application provide a carbon dioxide capture method, including:

[0006] Obtain carbon dioxide capture information; wherein, the carbon dioxide capture information is used to reflect the working state of the carbon dioxide capture device and the corresponding absorbent type;

[0007] Based on the analysis of the carbon dioxide capture information, determine whether the carbon dioxide capture device is in a first state; wherein, the first state includes a to-be-captured state and a backlog state. The to-be-captured state is used to reflect that the carbon dioxide capture device fails to successfully capture a specified amount of carbon dioxide within a set period, and the backlog state is used to reflect that the gas capture area of the carbon dioxide capture device stores more carbon dioxide gas than the safety capacity within a target period;

[0008] When it is determined that the carbon dioxide capture device is in the first state, perform a capture action.

[0009] The above technical solutions in the embodiments of this application have at least the following technical effects:

[0010] The carbon dioxide capture method provided by this application can obtain carbon dioxide capture information that reflects the working state of the carbon dioxide capture device and the corresponding absorbent type, enabling real-time monitoring of the operation of the carbon dioxide capture device. This helps to identify potential environmental changes earlier, providing data support for subsequent decision-making in advance and avoiding the problem of delayed capture effects. Secondly, by analyzing the carbon dioxide capture information, it is determined whether the carbon dioxide capture device is in the first state, which can promptly judge the working state of the device and is conducive to timely adjustment of the operation strategy in the subsequent process, more flexibly coping with different loads and operating conditions, and avoiding the problem of delayed capture effects. Then, when it is determined that the carbon dioxide capture device is in the first state, a capture action is executed, which can promptly respond to environmental changes, prevent further efficiency decline, and further reduce delays in the capture process, ensuring that the device can quickly return to the normal working state.

[0011] In a possible implementation manner of the first aspect, when it is determined that the carbon dioxide capture device is in the first state, executing the capture action includes:

[0012] When it is determined that the carbon dioxide capture device is in the first state, obtaining device information corresponding to the occurrence of the first state; wherein, the device information is used to reflect the capture device associated with the occurrence of the first state;

[0013] Executing the capture action based on the device information.

[0014] In a possible implementation manner of the first aspect, the method further includes:

[0015] When a capture task for carbon dioxide capture of the target gas generating device has been set for the carbon dioxide capture device, if the capture failure requirement is met for the xth time, the carbon dioxide capture device terminates the current capture task for the target gas generating device and regularly restarts the carbon dioxide capture device according to the capture failure instruction to indicate that the carbon dioxide capture device restarts the capture task for the target gas generating device; where x is an integer greater than or equal to 1; when the capture task of the carbon dioxide capture device for the target gas generating device fails for the first time, a first timestamp is obtained and a flag bit is set; whenever the capture failure requirement is met, the flag bit is incremented by one;

[0016] When the time difference between the current timestamp and the first timestamp is less than or equal to the target time difference and the capture failure requirement is met for the yth time, receiving an acquisition instruction sent by the target gas generating device; wherein, the acquisition instruction is used to instruct the carbon dioxide capture device to acquire the concentration data of the capture area between the carbon dioxide capture device and the target gas generating device; where y is an integer greater than x;

[0017] When the concentration data meets the restart capture requirement, receive the capture information sent by the target gas generation device; wherein, the capture information includes the device type information of the target gas generation device.

[0018] The carbon dioxide capture device sets a capture task for the device corresponding to the device type information of the target gas generation device according to the capture information.

[0019] In a possible implementation manner of the first aspect, the capture failure requirement is that the carbon dioxide capture device does not detect the flow of effective gas within a target time period or obtains a forced interruption operation.

[0020] In a possible implementation manner of the first aspect, the restart capture requirement is that the carbon dioxide concentration in the capture area between the carbon dioxide capture device and the target gas generation device is greater than a preset concentration threshold, or the carbon dioxide concentration in the capture area between the carbon dioxide capture device and the target gas generation device is continuously greater than the preset concentration threshold within a preset time period, or the carbon dioxide concentration in the capture area is greater than the preset concentration threshold and the concentration change form is a continuously rising form, or the carbon dioxide concentration in the capture area is greater than the preset concentration threshold and the concentration change form is a continuously rising form within the preset time period.

[0021] In a possible implementation manner of the first aspect, the method further includes:

[0022] After obtaining the concentration data of the capture area between the carbon dioxide capture device and the target gas generation device and setting a capture task for the device corresponding to the device type information of the target gas generation device, delete the obtained first timestamp and initialize the flag bit.

[0023] In a possible implementation manner of the first aspect, the method further includes:

[0024] When the time difference between the current timestamp and the first timestamp is less than or equal to the target time difference and the y-th time the capture failure requirement is met, the carbon dioxide capture device increases the receiving frequency; wherein, the receiving frequency is set according to the single-reception duration and the reception interval duration.

[0025] After the carbon dioxide capture device receives the acquisition instruction sent by the target gas generation device, the carbon dioxide capture device decreases the receiving frequency.

[0026] In a possible implementation manner of the first aspect, the method further includes:

[0027] When there is a capture task before the carbon dioxide capture device meets the capture failure requirement, it is determined that the carbon dioxide concentration corresponding to the capture task is the preset concentration threshold.

[0028] In a possible implementation manner of the first aspect, the method further includes:

[0029] When the carbon dioxide capture device has set a capture task for capturing carbon dioxide from the target gas generation device, the carbon dioxide capture device detects that the standby gas generation device has reached the activation ready state;

[0030] When the carbon dioxide concentration in the capture area between the carbon dioxide capture device and the standby gas generation device continuously exceeds the carbon dioxide concentration in the capture area between the carbon dioxide capture device and the target gas generation device within a preset time period, the current capture operation is switched from the target gas generation device to the standby gas generation device.

[0031] In a second aspect, an embodiment of the present application provides a carbon dioxide capture system for implementing the carbon dioxide capture method described in any one of the first aspects above. The carbon dioxide capture system is applied to a carbon dioxide capture device, and the carbon dioxide capture system includes:

[0032] An acquisition unit for acquiring carbon dioxide capture information; wherein, the carbon dioxide capture information is used to reflect the working state of the carbon dioxide capture device and the corresponding absorbent type;

[0033] An analysis unit for analyzing based on the carbon dioxide capture information to determine whether the carbon dioxide capture device is in a first state; wherein, the first state includes a pending capture state and a backlog state. The pending capture state is used to reflect that the carbon dioxide capture device fails to successfully capture a specified amount of carbon dioxide within a set time period, and the backlog state is used to reflect that the gas pending capture area of the carbon dioxide capture device stores more carbon dioxide gas than the safe capacity within a target time period;

[0034] A determination unit for performing a capture action when it is determined that the carbon dioxide capture device is in the first state.

[0035] In a third aspect, an embodiment of the present application provides a carbon dioxide capture device, including a memory, a processor, and a computer program stored in the memory and executable on the processor. When the processor executes the computer program, the carbon dioxide capture method described in any one of the first aspects above is implemented.

[0036] It can be understood that the beneficial effects of the second aspect to the third aspect above can refer to the relevant descriptions in the first aspect above, and will not be elaborated here. Brief Description of the Drawings

[0037] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings described below are only some embodiments of the present application. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0038] Figure 1 It is a schematic flowchart of a carbon dioxide capture method provided by an embodiment of the present application;

[0039] Figure 2 It is a schematic flowchart of implementing a capture task in a carbon dioxide capture method provided by an embodiment of the present application;

[0040] Figure 3 It is a schematic structural diagram of a carbon dioxide capture system provided by an embodiment of the present application;

[0041] Figure 4 It is a schematic structural diagram of a carbon dioxide capture device provided by an embodiment of the present application. Detailed Embodiments

[0042] In the following description, specific details such as specific system structures and technologies are presented for the purpose of illustration rather than limitation, so as to thoroughly understand the embodiments of the present application. However, those skilled in the art should clearly understand that the present application can also be implemented in other embodiments without these specific details. In other cases, detailed descriptions of well-known systems, devices, circuits, and methods are omitted to avoid unnecessary details from interfering with the description of the present application.

[0043] It should be understood that when used in the specification and appended claims of the present application, the term "comprising" indicates the presence of the described features, wholes, steps, operations, elements, and / or components, but does not exclude the presence or addition of one or more other features, wholes, steps, operations, elements, components, and / or their combinations.

[0044] It should also be understood that the term " / and" as used in the specification and appended claims of the present application refers to any combination and all possible combinations of one or more of the associated listed items, and includes these combinations.

[0045] As used in the specification of this application and the appended claims, the term "if" may be construed, depending on the context, as "when" or "once" or "in response to determining" or "in response to detecting". Similarly, the phrases "if determined" or "if the described condition or event is detected" may be construed, depending on the context, as meaning "once determined" or "in response to determining" or "once the described condition or event is detected" or "in response to detecting the described condition or event".

[0046] In addition, in the description of the specification of this application and the appended claims, the terms "first", "second", "third", etc. are only used for distinguishing descriptions and cannot be construed as indicating or implying relative importance.

[0047] The reference to "one embodiment" or "some embodiments" or the like described in the specification of this application means that a particular feature, structure, or characteristic described in connection with the embodiment is included in one or more embodiments of this application. Thus, the statements "in one embodiment", "in some embodiments", "in other some embodiments", "in still other embodiments", etc. that appear in different places in this specification do not necessarily all refer to the same embodiment, but mean "one or more but not all embodiments", unless otherwise specifically emphasized in other ways. The terms "comprising", "including", "having", and their variants all mean "including but not limited to", unless otherwise specifically emphasized in other ways.

[0048] In the related art, currently, the global energy structure still mainly relies on fossil fuels such as coal, oil, and natural gas. During the combustion process of fossil fuels, a large amount of carbon dioxide is released. For example, the carbon dioxide emissions generated by coal combustion are relatively high. Therefore, to achieve the emission reduction goal in the energy field, effective carbon dioxide capture technology must be developed.

[0049] In the traditional carbon dioxide capture process, it often operates based on manual monitoring or fixed operation procedures. When the capture environment changes, it cannot respond to the environmental changes in a timely manner, resulting in a delay in the capture effect.

[0050] To solve the above problems, the embodiments of this application provide a carbon dioxide capture method and device.

[0051] In this method, by obtaining carbon dioxide capture information that reflects the working state of the carbon dioxide capture device and the corresponding absorbent type, the operation of the carbon dioxide capture device can be monitored in real time, which helps to identify potential environmental changes earlier. Thus, it can provide data support for subsequent early decision-making and avoid the problem of delayed capture effect. Secondly, by analyzing the carbon dioxide capture information to determine whether the carbon dioxide capture device is in the first state, the working state of the device can be judged in a timely manner, which helps to adjust the operation strategy in a timely manner and respond more flexibly to different loads and operating conditions, avoiding the problem of delayed capture effect. Then, when it is determined that the carbon dioxide capture device is in the first state, the capture action is executed, which can respond to environmental changes in a timely manner, prevent further efficiency decline, and further reduce delays in the capture process, ensuring that the device can quickly return to the normal working state.

[0052] The carbon dioxide capture method provided by the embodiments of the present application can be applied to a carbon dioxide capture device. At this time, the carbon dioxide capture device is the execution subject of the carbon dioxide capture method provided by the embodiments of the present application. The embodiments of the present application do not impose any restrictions on the specific type of the carbon dioxide capture device.

[0053] For example, the carbon dioxide capture device can be a chemical absorption device (for example, a solution absorption device can use a liquid absorbent (such as amine solution) to absorb carbon dioxide), or a physical adsorption device (for example, a fixed bed adsorption tower can use a solid absorbent (such as activated carbon, molecular sieve) to adsorb carbon dioxide), or a membrane separation device (for example, a thin film filtration device can selectively separate carbon dioxide from other gases through a selective permeable membrane (such as a polymer membrane, a ceramic membrane, etc.)). The carbon dioxide capture device is electrically connected to the gas generation device.

[0054] For example, the gas generation device can be a heating furnace (for example, heating certain specific substances (such as coal, petroleum) to produce gas products), and the gas generation device can transport the gas to the carbon dioxide capture device through a pipeline system.

[0055] To better understand the carbon dioxide capture method provided by the embodiments of the present application, the following provides an exemplary introduction to the specific implementation process of the carbon dioxide capture method provided by the embodiments of the present application.

[0056] Figure 1 The schematic flowchart of the carbon dioxide capture method provided by the embodiments of the present application is shown. The carbon dioxide capture method includes:

[0057] S100, obtain carbon dioxide capture information. Among them, the carbon dioxide capture information is used to reflect the working state of the carbon dioxide capture device and the corresponding absorbent type.

[0058] It can be understood that the working state of the carbon dioxide capture device is used to reflect the capture efficiency and the utilization of the absorbent.

[0059] Exemplarily, dedicated sensors can be used to monitor the concentration and state of the absorbent. For example, in a chemical absorption device, the sensor can monitor the concentration of the amine solution to determine the consumption of the absorbent. The concentration of carbon dioxide can also be monitored in real time through a gas concentration sensor to determine the capture efficiency.

[0060] With such a setting, by obtaining the carbon dioxide capture information that reflects the working state of the carbon dioxide capture device and the corresponding absorbent type, the operation of the carbon dioxide capture device can be grasped in real time, which helps to identify potential environmental changes earlier, so as to provide data support for subsequent early decision-making and avoid the problem of delayed capture effect.

[0061] S200, based on the analysis of the carbon dioxide capture information, determine whether the carbon dioxide capture device is in the first state. Among them, the first state includes the to-be-captured state and the backlog state. The to-be-captured state is used to reflect that the carbon dioxide capture device fails to successfully capture a specified amount of carbon dioxide within a set period. The backlog state is used to reflect that the gas to-be-captured area of the carbon dioxide capture device stores more carbon dioxide gas than the safe capacity within a target period.

[0062] It can be understood that the set period can be 10 minutes, 15 minutes, etc. The target period can be 10 minutes, 15 minutes, etc. The gas to-be-captured area can be a gas storage device in the carbon dioxide capture device for storing the gas to be captured.

[0063] Exemplarily, the carbon dioxide inlet flow rate entering the carbon dioxide capture device can be measured within a set period through a flow meter, and the carbon dioxide outlet flow rate leaving the carbon dioxide capture device can be measured within the set period. Then, the flow rate difference between the carbon dioxide inlet flow rate and the carbon dioxide outlet flow rate is calculated to obtain the actual capture amount. The actual capture amount is compared with the specified amount of carbon dioxide. If the actual capture amount is less than the specified amount of carbon dioxide, it means that the specified amount of carbon dioxide has not been successfully captured within the set period; otherwise, it means that the specified amount of carbon dioxide has been successfully captured within the set period.

[0064] Exemplarily, the maximum safe storage capacity of the gas to be captured area can be set, for example, 10 cubic meters, 20 cubic meters, etc. The initial gas quantity, input flow rate, and output flow rate can be obtained through a gas mass flow sensor or a pressure sensor during a target period, and then the quantity of carbon dioxide in the gas to be captured area can be calculated based on the initial gas quantity, input flow rate, and output flow rate. For example, the quantity of carbon dioxide in the gas to be captured area = initial gas quantity + input flow rate - output flow rate. By comparing the quantity of carbon dioxide in the gas to be captured area with the maximum safe storage capacity, it is determined whether the gas to be captured area stores carbon dioxide gas exceeding the safe capacity during the target period. For example, if the quantity of carbon dioxide in the gas to be captured area is greater than the maximum safe storage capacity, it means it has exceeded; otherwise, it means it has not exceeded.

[0065] With such a setting, based on the analysis of carbon dioxide capture information, it is determined whether the carbon dioxide capture device is in the first state, which can timely judge the working state of the device, help to adjust the operation strategy in a timely manner, more flexibly respond to different loads and operating conditions, and avoid the problem of delayed capture effect.

[0066] S300, in the case where it is determined that the carbon dioxide capture device is in the first state, perform a capture action.

[0067] It can be understood that the capture action can be to increase the capture rate (for example, increase the concentration of the absorbent), or adjust the exhaust rate, or regulate the gas inflow rate.

[0068] Exemplarily, the state of the device can be confirmed to judge whether it meets the "first state". In the case where it is judged that the conditions of the "first state" are met, the capture action can be performed.

[0069] With such a setting, in the case where it is determined that the carbon dioxide capture device is in the first state, performing the capture action can timely respond to environmental changes, prevent further efficiency decline, and then reduce the delay in the capture process, ensuring that the device can quickly return to the normal working state.

[0070] In a possible implementation, please refer to Figure 2 , S300, in the case where it is determined that the carbon dioxide capture device is in the first state, perform a capture action, including:

[0071] S310, in the case where it is determined that the carbon dioxide capture device is in the first state, obtain the device information corresponding to the occurrence of the first state. Among them, the device information is used to reflect the capture device associated with the occurrence of the first state.

[0072] It can be understood that the device information can be key data such as device number, name, model, current storage quantity, capture rate, working time, etc., and the information on when the device enters the first state.

[0073] Exemplarily, a filtering function can be used to select "the first state" as a query condition in the system log to obtain all devices in this state, that is, to obtain the device information corresponding to the occurrence of the first state.

[0074] With such a setting, by filtering out the devices that enter "the first state", it is possible to quickly identify which devices have changed to a state that requires special attention, which helps to quickly locate the devices that may have problems and take timely measures to prevent the devices from further failing.

[0075] S320, perform a capture action based on the device information.

[0076] It can be understood that the device number and name in the device information are parsed so that the capture action is performed on the device corresponding to the device number in the device information.

[0077] With such a setting, it is possible to respond to environmental changes in a timely manner, prevent further efficiency decline, and thus reduce delays in the capture process, ensuring that the corresponding device can quickly return to the normal working state.

[0078] In a possible implementation manner, please refer to Figure 2 , the carbon dioxide capture method further includes:

[0079] S400, when a capture task for capturing carbon dioxide from a target gas generating device has been set in the carbon dioxide capture device, if the xth time the capture failure requirement is met, the carbon dioxide capture device terminates the current capture task for the target gas generating device, and according to the capture failure instruction, regularly restarts the carbon dioxide capture device to instruct the carbon dioxide capture device to restart the capture task for the target gas generating device. Here, x is an integer greater than or equal to 1. When the capture task of the carbon dioxide capture device for the target gas generating device fails for the first time, a first timestamp is obtained and a flag bit is set. Each time the capture failure requirement is met, the flag bit is incremented by one.

[0080] It can be understood that the capture failure requirement can be that the carbon dioxide capture device does not detect the flow of effective gas within a target duration or obtains a forced interruption operation. The capture task can be a task for the carbon dioxide capture device to capture carbon dioxide from the gas generated by the target gas generating device.

[0081] Exemplarily, the concentration data of the capture area between the carbon dioxide capture device and the target gas generating device obtained by the carbon dioxide capture device can be a, b, c, where a > b > c. When the concentration data is a, the carbon dioxide capture device captures carbon dioxide from the target gas generating device without the phenomenon of capturing for a while and then not capturing for a while. When the concentration data is approximately equal to b (that is, the value of the current concentration data fluctuates around b, or the value of the current concentration data is very close to the maximum working concentration of the device. Therefore, any small environmental change (such as temperature, humidity, air flow, etc.) may cause a change in carbon dioxide concentration. Under the action of this factor, the carbon dioxide capture device may repeatedly start and stop the capture process), the carbon dioxide capture device may frequently start and stop the capture process, that is, the phenomenon of capturing for a while and then not capturing for a while occurs. When the concentration data is c, the carbon dioxide capture device does not capture carbon dioxide from the target gas generating device, that is, the phenomenon of capturing for a while and then not capturing for a while does not occur.

[0082] Exemplarily, the maximum working concentration can be the concentration that supports the carbon dioxide capture device to capture carbon dioxide from the target gas generating device. For example, it is 12 - 20 milligrams per cubic meter. And the concentration at which the capture process frequently starts and stops can be the concentration adjacent to or near the maximum working concentration. For example, it is 11 - 13 milligrams per cubic meter. At the concentration where the capture process frequently starts and stops, the phenomenon of capturing for a while and then not capturing for a while may occur. Among them, the maximum working concentration can include the concentration at which the capture process frequently starts and stops, or can also include some of the concentrations at which the capture process frequently starts and stops.

[0083] Exemplarily, in the case where the carbon dioxide capture device has set a capture task to capture carbon dioxide from the target gas generating device, if the xth time meets the capture failure requirement, it indicates that the concentration data of the capture area between the carbon dioxide capture device and the target gas generating device may be the concentration at which the capture process frequently starts and stops, or may also be an environmental sudden factor (for example, the device may fail to capture this time, but does not fail to capture the next time). Therefore, in order to reduce the interference of the uncertainty of a single environment, the carbon dioxide capture device can terminate the current capture task for the target gas generating device and regularly restart the carbon dioxide capture device according to the capture failure instruction to instruct the carbon dioxide capture device to restart the capture task for the target gas generating device.

[0084] Exemplarily, when the carbon dioxide capture device fails to capture for the first time the capture task of the target gas generating device, a first timestamp can be obtained, and a flag bit (for example, 1) can be set. Whenever the capture failure requirement is met, the flag bit is incremented by one (for example, 2). Herein, the flag bit is used to reflect the number of times the carbon dioxide capture device meets the capture failure requirement. It should be noted that after the number of times the capture failure requirement is met exceeds the set number of times, the flag bit is initialized.

[0085] Exemplarily, whenever the carbon dioxide capture device performs the capture task of capturing carbon dioxide from the target gas generating device, the number of capture failures can be incremented. Thus, the number of times the capture failure requirement is met within the target duration can be obtained.

[0086] With such a setting, the uncertainty interference of a single environment can be reduced.

[0087] S500, when the time difference between the current timestamp and the first timestamp is less than or equal to the target time difference, and the capture failure requirement is met for the y-th time, receive the acquisition instruction sent by the target gas generating device. Herein, the acquisition instruction is used to instruct the carbon dioxide capture device to acquire the concentration data of the capture area between the carbon dioxide capture device and the target gas generating device. Herein, y is an integer greater than x.

[0088] It can be understood that when the time difference between the current timestamp and the first timestamp is less than or equal to the target time difference, and the capture failure requirement is met for the y-th time, it indicates that within a specific time (i.e., the target time difference), the concentration data of the capture area between the carbon dioxide capture device and the target gas generating device may be the concentration during the frequent start and stop of the capture process, rather than an environmental sudden factor, that is, the phenomenon of frequent start and stop of the capture process occurs. Therefore, in order to avoid the phenomenon of frequent start and stop of the capture process, the regular restart of the carbon dioxide capture device can be stopped. At this time, the concentration data of the capture area between the carbon dioxide capture device and the target gas generating device can be obtained, so as to further analyze whether the concentration data meets the restart capture requirement.

[0089] With such a setting, on the one hand, the uncertainty interference of a single environment can be reduced. On the other hand, the unnecessary frequent start and stop of the capture process can be stopped, reducing the burden on the device (for example, the frequent start and stop of the capture process may cause mechanical wear, thereby affecting the capture effect of the device), making the operation of the carbon dioxide capture device more stable.

[0090] S600, when the concentration data meets the restart capture requirement, receive the capture information sent by the target gas generating device. Herein, the capture information includes the device type information of the target gas generating device.

[0091] It can be understood that the restart capture requirement can be that the carbon dioxide concentration in the capture area between the carbon dioxide capture device and the target gas generation device is greater than a preset concentration threshold, or the carbon dioxide concentration in the capture area between the carbon dioxide capture device and the target gas generation device is continuously greater than the preset concentration threshold within a preset time period, or the carbon dioxide concentration in the capture area is greater than the preset concentration threshold and the concentration change form is a continuously rising form, or the carbon dioxide concentration in the capture area is greater than the preset concentration threshold and the concentration change form is a continuously rising form within a preset time period.

[0092] Exemplarily, when the concentration data meets the restart capture requirement, it indicates that the concentration data in the capture area between the carbon dioxide capture device and the target gas generation device is within the steady-state concentration, that is, not within the concentration of the frequently starting and stopping capture process. Therefore, the capture information sent by the target gas generation device can be obtained to identify which type of gas generation device is within the steady-state concentration, so that the capture task of carbon dioxide capture can be performed on the gas generation device within the steady-state concentration subsequently.

[0093] With such a setting, by confirming that the concentration data meets the restart capture requirement, the instability caused by frequent capture start and stop can be avoided, and the incorrect frequent start or stop of capture can be avoided.

[0094] S700, the carbon dioxide capture device sets the capture task of the device corresponding to the device type information of the target gas generation device according to the capture information.

[0095] It can be understood that the type information of the target gas generation device is determined, the capture information is matched with the existing type information of the target gas generation device, and after successful matching, the capture task of the device corresponding to the device type information of the target gas generation device is set.

[0096] With such a setting, the capture task can be carried out specifically, and the ineffective operation of capturing the inadaptable gas generation device can be avoided.

[0097] In a possible implementation manner, the capture failure requirement is that the carbon dioxide capture device does not detect the flow of effective gas within the target time period, or a forced interruption operation is obtained.

[0098] It can be understood that the forced interruption operation can be an operation to interrupt carbon dioxide capture due to user requirements. The carbon dioxide capture device not detecting the flow of effective gas within the target time period is used to indicate that the gas generation device does not generate gas. The capture failure requirement can also be that the carbon dioxide concentration in the capture area between the carbon dioxide capture device and the target gas generation device is less than the preset concentration threshold.

[0099] With such a setting, it helps to provide a basis for judging whether there is frequent capture start and stop.

[0100] In a possible implementation, the restart capture requirement is that the carbon dioxide concentration in the capture area between the carbon dioxide capture device and the target gas generation device is greater than a preset concentration threshold, or the carbon dioxide concentration in the capture area between the carbon dioxide capture device and the target gas generation device continuously exceeds the preset concentration threshold within a preset time period, or the carbon dioxide concentration in the capture area is greater than the preset concentration threshold and the concentration change form is a continuously rising form, or the carbon dioxide concentration in the capture area is greater than the preset concentration threshold and the concentration change form is a continuously rising form within a preset time period.

[0101] It can be understood that if the carbon dioxide concentration continuously exceeds the preset concentration threshold and this state lasts for a preset time period (e.g., several minutes or several hours), it indicates that the concentration data in the capture area between the carbon dioxide capture device and the target gas generation device is not within the concentration range of frequent start and stop of the capture process, or the probability of being within the concentration range of frequent start and stop of the capture process is very small, and the capture device will trigger a restart capture task. If the carbon dioxide concentration in the capture area is greater than the preset concentration threshold and the concentration change form is a continuously rising form within a preset time period, it indicates that the concentration data in the capture area between the carbon dioxide capture device and the target gas generation device is not within the concentration range of frequent start and stop of the capture process, or the probability of being within the concentration range of frequent start and stop of the capture process is very small.

[0102] Exemplarily, the continuously rising form of the concentration change can be that under the action of the increased power of the target gas generation device, the concentration data in the capture area between the carbon dioxide capture device and the target gas generation device slowly increases. For example, the preset time period is 5 minutes, the concentration in the first minute is 10 milligrams per cubic meter, the concentration in the third minute is 12 milligrams per cubic meter, and the concentration in the fifth minute is 15 milligrams per cubic meter, then it represents a continuously rising form.

[0103] Such a setting helps to provide a basis for determining whether the capture starts and stops frequently.

[0104] In a possible implementation, the carbon dioxide capture method further includes:

[0105] After obtaining the concentration data in the capture area between the carbon dioxide capture device and the target gas generation device and setting the capture task of the device corresponding to the device type information of the target gas generation device, delete the obtained first timestamp and initialize the flag bit.

[0106] It can be understood that initializing the flag bit can be resetting the flag bit to 0.

[0107] Exemplarily, after obtaining the concentration data of the capture area between the carbon dioxide capture device and the target gas generation device and setting the capture task of the device corresponding to the device type information of the target gas generation device, it is stated that the concentration data of the capture area between the carbon dioxide capture device and the target gas generation device at this time is not within the concentration range of the frequently starting and stopping capture process, but it cannot be guaranteed whether the phenomenon of the frequently starting and stopping capture process will occur subsequently. Therefore, the obtained first timestamp can be deleted and the flag bit can be initialized. When the phenomenon of the frequently starting and stopping capture process appears for the first time subsequently, the first timestamp can be obtained again and the flag bit can be set so that the carbon dioxide capture device can correctly respond according to the current situation.

[0108] With such a setting, the influence of the previous task or state can be cleared to ensure that the device can correctly respond according to the current situation in subsequent operations.

[0109] In a possible implementation manner, the carbon dioxide capture method further includes:

[0110] S710, when the time difference between the current timestamp and the first timestamp is less than or equal to the target time difference and the y-th time meets the capture failure requirement, the carbon dioxide capture device increases the receiving frequency. The receiving frequency is set according to the single receiving duration and the receiving interval duration.

[0111] It can be understood that the duration of receiving the acquisition instruction sent by the target gas generation device once is the single receiving duration. The difference between the start time nodes of two adjacent single receiving durations is the receiving interval duration. The receiving frequency is the ratio between the single receiving duration and the receiving interval duration.

[0112] Exemplarily, if the receiving frequency is larger (i.e., the single receiving duration is longer), it is easier to receive the acquisition instruction sent by the target gas generation device; conversely, it is more difficult to receive the acquisition instruction sent by the target gas generation device. Because when the time difference between the current timestamp and the first timestamp is less than or equal to the target time difference and the y-th time meets the capture failure requirement, in order to receive the acquisition instruction sent by the target gas generation device, therefore, in order to more easily receive the acquisition instruction sent by the target gas generation device, the receiving frequency can be increased.

[0113] With such a setting, it is possible to more easily and successfully receive the acquisition instruction, thereby improving the reaction speed and capture success rate of the capture system.

[0114] S720, after the carbon dioxide capture device receives the acquisition instruction sent by the target gas generation device, the carbon dioxide capture device decreases the receiving frequency.

[0115] It can be understood that after the carbon dioxide capture device receives the acquisition instruction sent by the target gas generation device, it means that there is no need to receive the acquisition instruction sent by the target gas generation device anymore. Therefore, the reception frequency can be reduced.

[0116] With such a setting, unnecessary reception operations can be reduced, saving energy and computing resources, so that the power consumption and load of the device can be effectively controlled, ensuring that the system remains efficient during long-term capture operation.

[0117] In a possible implementation, the carbon dioxide capture method further includes:

[0118] When there is a capture task before the carbon dioxide capture device meets the capture failure requirement, determine that the carbon dioxide concentration corresponding to the capture task is the preset concentration threshold.

[0119] It can be understood that when there is a capture task before the carbon dioxide capture device meets the capture failure requirement, it indicates that the phenomenon of frequent start and stop of the capture process occurs currently, and it also indicates that the concentration data in the capture area between the carbon dioxide capture device and the target gas generation device is not within the concentration range of the frequent start and stop of the capture process at this time. Therefore, the carbon dioxide concentration corresponding to the capture task can be set as the preset concentration threshold.

[0120] With such a setting, a clear reference standard can be provided, providing a data basis for subsequent decision-making.

[0121] In a possible implementation, the carbon dioxide capture method further includes:

[0122] S730, in the case where the carbon dioxide capture device has set a capture task for carbon dioxide capture of the target gas generation device, the carbon dioxide capture device detects that the standby gas generation device reaches the activation ready state.

[0123] It can be understood that the carbon dioxide capture device can not only perform carbon dioxide capture on the target gas generation device, but also perform carbon dioxide capture on the standby gas generation device. However, the carbon dioxide capture device can only execute the capture task of carbon dioxide capture on one gas generation device at the same time. The activation ready state can be the state where the standby gas generation device is ready to generate gas.

[0124] Exemplarily, the standby gas generation device can transmit whether it is in the activation ready state to the carbon dioxide capture device through a set of status feedback mechanisms (such as sensors, PLCs, IoT devices, etc.). When the standby gas generation device meets the preset ready standard, it will send a "activation ready" signal, and the carbon dioxide capture device can receive this "activation ready" signal, that is, the carbon dioxide capture device detects that the standby gas generation device reaches the activation ready state.

[0125] Such a setting can provide data support for the subsequent switching of the carbon dioxide capture device between the target gas generation device and the standby gas generation device.

[0126] S740. When the carbon dioxide concentration in the capture area between the carbon dioxide capture device and the standby gas generation device continuously exceeds the carbon dioxide concentration in the capture area between the carbon dioxide capture device and the target gas generation device within a preset time period, the current capture operation is switched from the target gas generation device to the standby gas generation device.

[0127] It can be understood that when the carbon dioxide concentration in the capture area between the carbon dioxide capture device and the standby gas generation device continuously exceeds the carbon dioxide concentration in the capture area between the carbon dioxide capture device and the target gas generation device within a preset time period, it indicates that the probability of the capture task between the carbon dioxide capture device and the standby gas generation device not experiencing frequent start and stop of the capture process is higher than that of the capture task between the carbon dioxide capture device and the target gas generation device. Therefore, the current capture operation can be switched from the target gas generation device to the standby gas generation device. Moreover, in order to further avoid the problem of frequent start and stop of the capture process, the steps of S400, S500, S600, and S700 can be executed subsequently.

[0128] Such a setting can make the system more flexible by dynamically monitoring and switching devices, which helps the carbon dioxide capture device to always execute the capture task on the most suitable device, maximizing the carbon dioxide capture efficiency.

[0129] It should be understood that the magnitudes of the sequence numbers of the steps in the above embodiments do not imply the order of execution. The order of execution of each process should be determined by its function and internal logic, and should not constitute any limitation to the implementation process of the embodiments of the present application.

[0130] Corresponding to the carbon dioxide capture method described in the above embodiments, an embodiment of the present application further provides a carbon dioxide capture system, and each unit of this system can implement each step of the carbon dioxide capture method. Figure 3 The block diagram of the carbon dioxide capture system provided by the embodiment of the present application is shown. For the sake of convenience of description, only the parts related to the embodiment of the present application are shown.

[0131] Referring to Figure 3 , the carbon dioxide capture system includes:

[0132] An acquisition unit, configured to acquire carbon dioxide capture information. Among them, the carbon dioxide capture information is used to reflect the working state of the carbon dioxide capture device and the corresponding absorbent type.

[0133] An analysis unit is configured to analyze based on carbon dioxide capture information to determine whether the carbon dioxide capture device is in a first state. The first state includes a to-be-captured state and a backlog state. The to-be-captured state is used to reflect that the carbon dioxide capture device fails to successfully capture a specified amount of carbon dioxide within a set period. The backlog state is used to reflect that the gas to-be-captured area of the carbon dioxide capture device stores carbon dioxide gas exceeding the safe capacity within a target period.

[0134] A determination unit is configured to perform a capture action when it is determined that the carbon dioxide capture device is in the first state.

[0135] It should be noted that for the information interaction, execution process, etc. between the above-mentioned systems / units, since they are based on the same concept as the method embodiments of the present application, their specific functions and the technical effects brought about can be specifically referred to in the method embodiment section, and will not be elaborated here.

[0136] Those skilled in the art can clearly understand that for the convenience and simplicity of description, only the above division of each functional unit is used as an example. In practical applications, the above functions can be allocated to different functional units according to needs, that is, the internal structure of the system is divided into different functional units to complete all or part of the functions described above. Each functional unit in the embodiment can be integrated into a processing unit, or each unit can exist physically alone, or two or more units can be integrated into one unit. The above integrated units can be implemented in the form of hardware or in the form of software functional units. In addition, the specific names of each functional unit are only for the convenience of mutual distinction and do not limit the protection scope of the present application. The specific working process of the units in the above system can refer to the corresponding process in the foregoing method embodiments and will not be elaborated here.

[0137] An embodiment of the present application further provides a carbon dioxide capture device. Figure 4 It is a schematic structural diagram of a carbon dioxide capture device provided by an embodiment of the present application. As Figure 4 shown, the carbon dioxide capture device 6 of this embodiment includes: at least one processor 60 ( Figure 4 only one is shown herein), at least one memory 61 ( Figure 4 only one is shown herein), and a computer program 62 stored in the at least one memory 61 and executable on the at least one processor 60. When the processor 60 executes the computer program 62, the carbon dioxide capture device 6 implements the steps in any of the above carbon dioxide capture method embodiments, or the functions of each unit in the above system embodiments.

[0138] Exemplarily, the computer program 62 may be divided into one or more units, which are stored in the memory 61 and executed by the processor 60 to complete the present application. The one or more units may be a series of computer program instruction segments capable of performing specific functions, and these instruction segments are used to describe the execution process of the computer program 62 in the carbon dioxide capture device 6.

[0139] The carbon dioxide capture device 6 may be a chemical absorption device (for example, a solution absorption device may use a liquid absorbent (such as an amine solution) to absorb carbon dioxide), or a physical adsorption device (for example, a fixed bed adsorption tower may use a solid absorbent (such as activated carbon, molecular sieve) to adsorb carbon dioxide), or a membrane separation device (for example, a thin film filtration device may selectively separate carbon dioxide from other gases through a selective permeable membrane (such as a polymer membrane, a ceramic membrane, etc.)). The carbon dioxide capture device is electrically connected to the gas generation device. The carbon dioxide capture device 6 may include, but is not limited to, a processor 60 and a memory 61. Those skilled in the art can understand that Figure 4 merely examples of the carbon dioxide capture device 6 do not constitute a limitation on the carbon dioxide capture device 6, and it may include more or fewer components than shown in the figure, or combine certain components, or different components. For example, it may also include input and output devices, network access devices, buses, etc.

[0140] The processor 60 may be a central processing unit (CPU), and the processor 60 may also be other general-purpose processors, digital signal processors (DSPs), application specific integrated circuits (ASICs), field-programmable gate arrays (FPGAs), or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc. The general-purpose processor may be a microprocessor or the processor may also be any conventional processor, etc.

[0141] The memory 61 may be an internal storage unit of the carbon dioxide capture device 6 in some embodiments, such as the hard disk or memory of the carbon dioxide capture device 6. The memory 61 may also be an external storage device of the carbon dioxide capture device 6 in some other embodiments, such as a plug-in hard disk, a Smart Media Card (SMC), a Secure Digital (SD) card, a FlashCard, etc. equipped on the carbon dioxide capture device 6. Further, the memory 61 may also include both the internal storage unit and the external storage device of the carbon dioxide capture device 6. The memory 61 is used to store an operating system, application programs, a BootLoader, data, and other programs, such as the program code of the computer program, etc. The memory 61 may also be used to temporarily store the data that has been output or will be output.

[0142] An embodiment of the present application also provides a computer-readable storage medium storing a computer program, and when the computer program is executed by a processor, the steps in any of the above method embodiments are implemented.

[0143] An embodiment of the present application provides a computer program product, and when the computer program product runs on a carbon dioxide capture device, the carbon dioxide capture device implements the steps in any of the above method embodiments.

[0144] 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 such an understanding, to implement all or part of the processes in the above embodiment methods of the present application, a computer program can be used to instruct relevant hardware to complete. The computer program can be stored in a computer-readable storage medium, and when the computer program is executed by a processor, the steps in the above method embodiments can be implemented. Among them, the computer program includes computer program code, and the computer program code can be in the form of source code, object code, executable file, or some intermediate form, etc. The computer-readable medium can at least include: any entity or device capable of carrying the computer program code to the carbon dioxide capture device, a recording medium, a computer memory, a read-only memory (ROM), a random access memory (RAM), an electrical carrier signal, a telecommunication signal, and a software distribution medium. For example, a USB flash drive, a mobile hard disk, a magnetic disk, or an optical disc, etc.

[0145] In the above embodiments, the descriptions of the embodiments have their own emphases. For the parts not detailed or recorded in a certain embodiment, reference may be made to the relevant descriptions of other embodiments.

[0146] Those of ordinary skill in the art can realize that the units and algorithm steps of the examples described in combination with the embodiments disclosed herein can be implemented by electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are executed in a hardware or software manner depends on the specific application and design constraints of the technical solution. Professional technicians can use different methods to implement the described functions for each specific application, but such implementation should not be considered to exceed the scope of this application.

[0147] In the embodiments provided in this application, it should be understood that the disclosed carbon dioxide capture device, carbon dioxide capture system, and carbon dioxide capture method can be implemented in other ways. For example, the carbon dioxide capture device and carbon dioxide capture system embodiments described above are merely illustrative. For example, the division of the units is only a logical function division. In actual implementation, there may be other division methods. For example, 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 displayed or discussed couplings or direct couplings or communication connections to each other can be through some interfaces, and the indirect couplings or communication connections of devices or units can be in electrical, mechanical, or other forms.

[0148] The units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, they can be located in one place, or distributed to multiple network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of this embodiment.

[0149] The above embodiments are only used to illustrate the technical solutions of this application, rather than to limit them; although this application has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements for some of the technical features; and these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this application, and should all be included in the protection scope of this application.

Claims

1. A method for carbon dioxide capture, characterized in that, The method includes: Obtaining carbon dioxide capture information; wherein, the carbon dioxide capture information is used to reflect the working state of the carbon dioxide capture device and the corresponding absorbent type; Analyzing based on the carbon dioxide capture information to determine whether the carbon dioxide capture device is in a first state; wherein, the first state includes a to-be-captured state and a backlog state, the to-be-captured state is used to reflect that the carbon dioxide capture device fails to successfully capture a specified amount of carbon dioxide within a set time period, and the backlog state is used to reflect that the gas to-be-captured area of the carbon dioxide capture device stores carbon dioxide gas exceeding the safe capacity within a target time period; When it is determined that the carbon dioxide capture device is in the first state, perform a capture action.

2. The carbon dioxide capture method according to claim 1, characterized in that When it is determined that the carbon dioxide capture device is in the first state, performing a capture action includes: When it is determined that the carbon dioxide capture device is in the first state, obtaining device information corresponding to the occurrence of the first state; wherein, the device information is used to reflect the capture device associated with the occurrence of the first state; Perform a capture action based on the device information.

3. The carbon dioxide capture method according to claim 1, wherein, The method further includes: When a capture task for carbon dioxide capture of a target gas generating device has been set for the carbon dioxide capture device, if the capture failure requirement is met for the xth time, the carbon dioxide capture device terminates the current capture task for the target gas generating device, and according to the capture failure instruction, regularly restarts the carbon dioxide capture device to instruct the carbon dioxide capture device to restart the capture task for the target gas generating device; wherein, x is an integer greater than or equal to 1; when the capture task of the carbon dioxide capture device for the target gas generating device fails for the first time, obtain a first timestamp and set a flag bit; whenever the capture failure requirement is met, the flag bit is incremented by one; When the time difference between the current timestamp and the first timestamp is less than or equal to the target time difference, and the capture failure requirement is met for the yth time, receive an acquisition instruction sent by the target gas generating device; wherein, the acquisition instruction is used to instruct the carbon dioxide capture device to obtain the concentration data of the capture area between the carbon dioxide capture device and the target gas generating device; wherein, y is an integer greater than x; When the concentration data meets the restart capture requirement, receive capture information sent by the target gas generating device; wherein, the capture information includes the device type information of the target gas generating device; The carbon dioxide capture device sets a capture task for the device corresponding to the device type information of the target gas generating device according to the capture information.

4. The carbon dioxide capture method according to claim 3, wherein, The capture failure requirement is that the carbon dioxide capture device does not detect the flow of effective gas within a target duration or obtains a forced interruption operation.

5. The carbon dioxide capture method according to claim 3, characterized in that, The restart capture requirement is that the carbon dioxide concentration in the capture area between the carbon dioxide capture device and the target gas generation device is greater than a preset concentration threshold, or the carbon dioxide concentration in the capture area between the carbon dioxide capture device and the target gas generation device continuously exceeds the preset concentration threshold within a preset time period, or the carbon dioxide concentration in the capture area is greater than the preset concentration threshold and the concentration change form is a continuously rising form, or the carbon dioxide concentration in the capture area is greater than the preset concentration threshold and the concentration change form is a continuously rising form within the preset time period.

6. The carbon dioxide capture method according to claim 3, characterized in that, The method further includes: After obtaining the concentration data of the capture area between the carbon dioxide capture device and the target gas generation device and setting the capture task of the device corresponding to the device type information of the target gas generation device, delete the obtained first timestamp and initialize the flag bit.

7. The carbon dioxide capture method according to claim 3, wherein, The method further includes: When the time difference between the current timestamp and the first timestamp is less than or equal to the target time difference and the capture failure requirement is met for the y-th time, the carbon dioxide capture device increases the reception frequency; wherein, the reception frequency is set according to the single reception duration and the reception interval duration. After the carbon dioxide capture device receives the acquisition instruction sent by the target gas generation device, the carbon dioxide capture device decreases the reception frequency.

8. The carbon dioxide capture method according to claim 4, wherein The method further includes: When there is a capture task before the carbon dioxide capture device meets the capture failure requirement, determine that the carbon dioxide concentration corresponding to the capture task is the preset concentration threshold.

9. The carbon dioxide capture method according to any one of claims 3 to 5, characterized in that The method further includes: When the carbon dioxide capture device has set a capture task for capturing carbon dioxide from the target gas generation device, the carbon dioxide capture device detects that the standby gas generation device has reached the activation ready state. When the carbon dioxide concentration in the capture area between the carbon dioxide capture device and the standby gas generation device continuously exceeds the carbon dioxide concentration in the capture area between the carbon dioxide capture device and the target gas generation device within a preset time period, switch the current capture operation from the target gas generation device to the standby gas generation device.

10. A carbon dioxide capture device, characterized in that, It includes a memory, a processor, and a computer program stored in the memory and executable on the processor. When the processor executes the computer program, the method described in any one of claims 1 to 7 is implemented.

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