Automatic amine solution supplementing device and method for carbon capture system

Abstract

The embodiment of the invention provides an automatic amine solution supplementing device and method for a carbon capture system. Comprising an amine solution storage tank which is provided with an amine solution inlet and an amine solution outlet, the amine solution inlet is used for communicating with an amine solution source, and the amine solution outlet is used for communicating with an absorption tower; the liquid level measuring piece is arranged in the amine solution storage tank and is used for measuring the liquid level in the amine solution storage tank; the monitoring and early warning system is electrically connected with the liquid level measuring part and is used for adjusting the adding amount of the amine solution added into the absorption tower by the amine solution storage tank according to the monitored liquid level change, so that the amine solution in the absorption tower is constant. Through the automatic amine solution supplementing device of the carbon capture system, which is composed of the liquid level measuring piece, the monitoring and early warning system, the amine solution storage tank and the like, the liquid level of the amine solution in the absorption tower can be monitored in real time, and the amine solution can be automatically supplemented in time so as to ensure continuous and efficient operation of the capture system; and the problems of liquid level drop and instability, low trapping efficiency and thermal efficiency, insufficient storage tank amine solution, labor input and the like are avoided.

Description

Technical Field

[0001] The embodiments of the present invention relate to the technical field of carbon dioxide capture, and more particularly to an automatic amine solution replenishment device and method for a carbon capture system. Background Art

[0002] Carbon dioxide capture systems are an important means of reducing CO2 emissions from industrial processes. One of their core components is the absorption tower. Within the absorption tower, CO2 absorbents, such as amine solutions, are typically used to capture CO2. However, in actual operation, these absorbents face a number of challenges:

[0003] Thermal degradation: Amine solutions are prone to thermal degradation in high temperature environments, which not only reduces the effective concentration of amines but also may generate by-products, affecting absorption efficiency.

[0004] Volatility: Amine solution has a certain volatility, especially at higher temperatures. This characteristic will lead to the loss of amine and thus reduce the capture efficiency of the system.

[0005] Escape problem: Some amines may escape from the absorption tower in gaseous form, which not only increases operating costs but also has potential impacts on the environment.

[0006] These problems lead to the need for irregular replenishment of amine solution. However, traditional carbon capture devices have the following deficiencies in amine solution replenishment:

[0007] The need for manual refilling: Whenever the amine solution needs to be replenished, the traditional practice relies on manual refilling operations, which is time-consuming, labor-intensive and imprecise.

[0008] The amount of replenishment is difficult to accurately control: Due to the lack of an effective monitoring and control system, the replenishment amount is often based on estimation rather than accurate measurement, resulting in unstable amine solution addition, which in turn affects the stability and capture efficiency of the entire system.

[0009] Unstable liquid level: Artificial rehydration makes it difficult to maintain a constant liquid level of the amine solution in the absorption tower, which directly affects the thermal efficiency and carbon dioxide capture efficiency of the system and fails to achieve the goal of maximizing resource utilization.

[0010] Therefore, in order to improve the long-term stability and operational efficiency of the carbon dioxide capture system, there is an urgent need for a more intelligent and efficient amine solution automatic replenishment and management system to solve the above-mentioned technical problems. Summary of the Invention

[0011] The embodiments of the present invention aim to solve at least one of the technical problems existing in the prior art, and provide an automatic amine solution replenishing device and method for a carbon capture system.

[0012] In a first aspect, an embodiment of the present invention provides an automatic amine solution replenishing device for a carbon capture system, the automatic amine solution replenishing device for a carbon capture system comprising:

[0013] an amine solution storage tank having an amine solution inlet and an amine solution outlet, wherein the amine solution inlet is connected to an amine solution source, and the amine solution outlet is connected to an absorption tower;

[0014] A liquid level measuring component is provided in the amine solution storage tank, and is used to measure the liquid level in the amine solution storage tank;

[0015] A monitoring and early warning system is electrically connected to the liquid level measuring component. The monitoring and early warning system is used to adjust the amount of amine solution added from the amine solution storage tank to the absorption tower via the amine solution outlet according to the liquid level change monitored by the liquid level measuring component, so as to keep the amine solution in the absorption tower constant.

[0016] In some possible embodiments, the monitoring and early warning system is further used to:

[0017] The dosage of the amine solution is calculated based on the liquid level monitored by the liquid level measuring element and the total amount of amine solution set in the amine solution storage tank.

[0018] In some possible embodiments, the monitoring and early warning system is further used to:

[0019] When the liquid level monitored by the liquid level measuring component is lower than a preset threshold, an early warning signal is issued.

[0020] In some possible embodiments, the monitoring and early warning system is further used to:

[0021] The warning signal is pushed to the mobile terminal.

[0022] In some possible embodiments, the carbon capture system amine solution automatic refilling device further includes an absorption tower pipeline;

[0023] The inlet of the absorption tower pipeline is communicated with the amine solution outlet of the amine solution storage tank, and the outlet of the absorption tower pipeline is communicated with the absorption tower.

[0024] In some possible embodiments, the carbon capture system amine solution automatic replenishment device further includes an amine solution pump;

[0025] The amine solution pump is arranged in series with the absorption tower pipeline.

[0026] In some possible embodiments, the liquid level measuring component is a liquid level gauge.

[0027] In a second aspect, an embodiment of the present invention provides a method for automatically replenishing amine solution in a carbon capture system, using the aforementioned automatic replenishing device for amine solution in a carbon capture system. The method comprises:

[0028] The liquid level measuring member measures the liquid level in the amine solution storage tank;

[0029] The monitoring and early warning system adjusts the amount of amine solution added from the amine solution storage tank to the absorption tower via the amine solution outlet according to the liquid level change monitored by the liquid level measuring component, so as to keep the amine solution in the absorption tower constant.

[0030] In some possible embodiments, the carbon capture system amine solution automatic refill method

[0031] The law also includes:

[0032] The monitoring and early warning system calculates the dosage of the amine solution according to the liquid level monitored by the liquid level measuring element and the total amount of amine solution set in the amine solution storage tank.

[0033] In some possible embodiments, the carbon capture system amine solution automatic refill method

[0034] The law also includes:

[0035] The monitoring and early warning system sends out an early warning signal when the liquid level monitored by the liquid level measuring component is lower than a preset threshold.

[0036] The automatic amine solution replenishment device and method for a carbon capture system according to an embodiment of the present invention, which is composed of a liquid level measuring device, a monitoring and early warning system, and an amine solution storage tank, can monitor the amine solution level in the absorption tower in real time and automatically replenish the amine solution in a timely manner to ensure continuous and efficient operation of the capture system, thereby avoiding problems such as liquid level drop and instability, reduced capture efficiency and thermal efficiency, insufficient amine solution in the storage tank, and manual input. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] In order to more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the specific embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0038] Figure 1 This is a schematic structural diagram of an automatic amine solution replenishing device for a carbon capture system according to an embodiment of the present invention;

[0039] Figure 2This is a flow chart of a method for automatically replenishing amine solution in a carbon capture system according to an embodiment of the present invention. DETAILED DESCRIPTION

[0040] To enable those skilled in the art to better understand the technical solutions of the present invention, the present invention is further described below in conjunction with the accompanying drawings and specific embodiments. It is apparent that the described embodiments are only a portion of the embodiments of the present invention, rather than all of them. Based on the described embodiments of the present invention, all other embodiments obtained by those skilled in the art without requiring creative effort are within the scope of protection of the present invention.

[0041] Unless otherwise specified, the technical terms or scientific terms used in the embodiments of the present invention should be understood by people with ordinary skills in the field to which the present invention belongs. The terms "including" or "comprising" used in the embodiments of the present invention neither limit the shapes, numbers, steps, actions, operations, components, originals and / or their groups mentioned, nor exclude the appearance or addition of one or more other different shapes, numbers, steps, actions, operations, components, originals and / or their groups, or the addition of these. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number and order of the indicated technical features. Thus, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the embodiments of the present invention, the meaning of "multiple" is two or more, unless otherwise clearly and specifically defined.

[0042] Unless otherwise specifically stated, the relative arrangements of the components and steps, numerical expressions, and numerical values set forth in these embodiments do not limit the scope of the present invention. At the same time, it should be understood that, for ease of description, the dimensions of the various parts shown in the drawings are not drawn in accordance with actual proportional relationships, and that the techniques, methods, and devices known to those of ordinary skill in the relevant art may not be discussed in detail, but where appropriate, the techniques, methods, and devices shown should be considered part of the authorized specification. In all examples shown and discussed herein, any specific other examples may have different values. It should be noted that similar symbols and letters represent similar items in the following figures, and therefore, once an item is defined in one figure, it does not need to be further discussed in subsequent figures.

[0043] In the description of the embodiments of the present invention, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In the embodiments of the present invention, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine different embodiments or examples described in the embodiments of the present invention and the features of different embodiments or examples, unless they are mutually inconsistent.

[0044] Below, the exemplary embodiments according to the present invention will be described in detail with reference to the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments of the present invention, and it should be understood that the present invention is not limited to the exemplary embodiments described herein.

[0045] Figure 1 This is a schematic diagram of the structure of the automatic amine solution replenishment device for the carbon capture system according to an embodiment of the present invention. Figure 1 As shown, an embodiment of the present invention relates to an automatic amine solution replenishing device for a carbon capture system, which includes: an amine solution storage tank 1, a liquid level measuring device 2 and a monitoring and early warning system 3.

[0046] For example, Figure 1 As shown, the amine solution storage tank 1 has an amine solution inlet and an amine solution outlet. The amine solution inlet is used to communicate with an amine solution source so that amine solution is provided to the amine solution storage tank 1 through the provided amine solution inlet. The amine solution outlet is used to communicate with an absorption tower so that amine solution is added to the absorption tower through the amine solution outlet.

[0047] It should be noted that there is no limitation on the locations of the amine solution inlet and outlet provided on the amine solution storage tank 1. For example, in some embodiments, the amine solution inlet and outlet may be provided on the top and bottom walls of the amine solution storage tank 1, respectively. In other embodiments, the amine solution inlet and outlet may be provided on the top and bottom walls of the side walls of the amine solution storage tank 1, respectively, and this embodiment does not limit this.

[0048] For example, Figure 1As shown, the liquid level measuring device 2 is disposed within the amine solution storage tank 1 and is used to measure the liquid level within the amine solution storage tank 1. In some embodiments, the liquid level measuring device 2 can be a liquid level gauge. In specific applications, the liquid level gauge can be inserted into the amine solution storage tank 1 to facilitate monitoring of liquid level changes within the amine solution storage tank 1. Of course, those skilled in the art may also use other devices capable of liquid level measurement, and this embodiment does not specifically limit this.

[0049] For example, Figure 1 As shown, the monitoring and early warning system 3 is electrically connected to the liquid level measuring element 2. For example, in some embodiments, the monitoring and early warning system 3 can be electrically connected to the liquid level measuring element 2 via a wired manner, and in other embodiments, the monitoring and early warning system 3 can also be electrically connected to the liquid level measuring element 2 via a wireless manner, which is not limited in this embodiment.

[0050] Specifically, the monitoring and early warning system 3 is used to adjust the amount of amine solution added from the amine solution storage tank 1 to the absorption tower via the amine solution outlet according to the liquid level change monitored by the liquid level measuring device 2, so as to keep the amine solution in the absorption tower constant.

[0051] The automatic amine solution replenishing device for a carbon capture system according to an embodiment of the present invention, which is composed of a liquid level measuring device, a monitoring and early warning system, and an amine solution storage tank, can monitor the amine solution level in the absorption tower in real time and automatically replenish the amine solution in a timely manner to ensure continuous and efficient operation of the capture system, thereby avoiding problems such as liquid level drop and instability, reduced capture efficiency and thermal efficiency, insufficient amine solution in the storage tank, and manual input.

[0052] For example, Figure 1 As shown, the monitoring and early warning system 3 is further used to calculate the dosage of the amine solution according to the liquid level monitored by the liquid level measuring element 2 and the total amount of amine solution set in the amine solution storage tank 1 .

[0053] Specifically, in this embodiment, the monitoring and early warning system 3 converts the pressure signal of the liquid level measuring component 2 into an electrical signal for transmission, monitors the liquid level in the amine solution storage tank 1 in real time, and obtains the dosage through the set total amount in the storage tank, thereby ensuring the constant amine solution in the absorption tower and the safety of the standby amine solution level in the storage tank.

[0054] For example, in order to further ensure the safety of the reserve amine solution level in the amine solution storage tank 1, Figure 1 As shown, the monitoring and warning system 3 is further configured to send out a warning signal when the liquid level detected by the liquid level measuring element 2 is lower than a preset threshold value, thereby promptly reminding the operator to replenish the amine solution in the amine solution storage tank 1 .

[0055] For example, Figure 1 As shown, the monitoring and early warning system 3 is further configured to push the early warning signal to a mobile terminal. For example, when the monitoring and early warning system 3 issues an early warning signal, it can push the early warning signal to a mobile terminal such as a mobile phone, tablet computer, laptop, or desktop computer, so that the operator can promptly be informed of the current liquid level early warning signal.

[0056] For example, Figure 1 As shown, the carbon capture system amine solution automatic refilling device further includes an absorption tower pipeline 4; the inlet of the absorption tower pipeline 4 is connected to the amine solution outlet of the amine solution storage tank 1, and the outlet of the absorption tower pipeline 4 is connected to the absorption tower.

[0057] For example, Figure 1 As shown, the carbon capture system amine solution automatic replenishment device also includes an amine solution pump (not shown in the figure). The amine solution pump is connected in series with the absorption tower pipeline 4. With this arrangement, the amine solution in the amine solution storage tank 1 can be pumped into the absorption tower.

[0058] Figure 2 Flow chart of the automatic amine solution replenishment method for the carbon capture system according to an embodiment of the present invention. Figure 2 As shown, an embodiment of the present invention provides a method for automatically replenishing amine solution in a carbon capture system, which adopts the automatic replenishing device for amine solution in a carbon capture system described above. The specific structure of the device can be referred to the relevant description above and will not be described here in detail.

[0059] like Figure 2 As shown, the carbon capture system amine solution automatic refilling method includes the following steps S201 and S202:

[0060] Step S201: The liquid level measuring component measures the liquid level in the amine solution storage tank.

[0061] Step S202: The monitoring and early warning system adjusts the amount of amine solution added from the amine solution storage tank to the absorption tower via the amine solution outlet according to the liquid level change monitored by the liquid level measuring device, so as to keep the amine solution in the absorption tower constant.

[0062] The automatic amine solution replenishment method for a carbon capture system according to an embodiment of the present invention can monitor the amine solution level in the absorption tower in real time and automatically replenish the amine solution in a timely manner through the automatic amine solution replenishment device for the carbon capture system composed of a liquid level measuring device, a monitoring and early warning system, and an amine solution storage tank, to ensure continuous and efficient operation of the capture system, thereby avoiding problems such as liquid level drop and instability, reduced capture efficiency and thermal efficiency, insufficient amine solution in the storage tank, and manual input.

[0063] In some embodiments, the carbon capture system amine solution automatic replenishment method further comprises:

[0064] The monitoring and early warning system calculates the dosage of the amine solution according to the liquid level monitored by the liquid level measuring element and the total amount of amine solution set in the amine solution storage tank.

[0065] In some embodiments, the carbon capture system amine solution automatic replenishment method further comprises:

[0066] The monitoring and early warning system sends out an early warning signal when the liquid level monitored by the liquid level measuring component is lower than a preset threshold.

[0067] It will be understood that the above embodiments are merely exemplary embodiments for illustrating the principles of the present invention, and the present invention is not limited thereto. Those skilled in the art will appreciate that various modifications and improvements can be made without departing from the spirit and substance of the present invention, and such modifications and improvements are also considered to be within the scope of protection of the present invention.

Claims

1. An automatic amine solution replenishing device for a carbon capture system, characterized in that: The carbon capture system amine solution automatic refilling device comprises: an amine solution storage tank having an amine solution inlet and an amine solution outlet, wherein the amine solution inlet is connected to an amine solution source, and the amine solution outlet is connected to an absorption tower; A liquid level measuring component is provided in the amine solution storage tank, and is used to measure the liquid level in the amine solution storage tank; A monitoring and early warning system is electrically connected to the liquid level measuring component. The monitoring and early warning system is used to adjust the amount of amine solution added from the amine solution storage tank to the absorption tower via the amine solution outlet according to the liquid level change monitored by the liquid level measuring component, so as to keep the amine solution in the absorption tower constant.

2. The automatic amine solution replenishing device for a carbon capture system according to claim 1, characterized in that: The monitoring and early warning system is also used to: The dosage of the amine solution is calculated based on the liquid level monitored by the liquid level measuring element and the total amount of amine solution set in the amine solution storage tank.

3. The automatic amine solution replenishing device for a carbon capture system according to claim 1, characterized in that: The monitoring and early warning system is also used to: When the liquid level monitored by the liquid level measuring component is lower than a preset threshold, an early warning signal is issued.

4. The automatic amine solution replenishing device for a carbon capture system according to claim 3, characterized in that: The monitoring and early warning system is also used to: The warning signal is pushed to the mobile terminal.

5. The automatic amine solution replenishing device for a carbon capture system according to any one of claims 1 to 4, characterized in that: The carbon capture system amine solution automatic refilling device also includes an absorption tower pipeline; The inlet of the absorption tower pipeline is communicated with the amine solution outlet of the amine solution storage tank, and the outlet of the absorption tower pipeline is communicated with the absorption tower.

6. The automatic amine solution replenishing device for a carbon capture system according to claim 5, characterized in that: The carbon capture system amine solution automatic refilling device further comprises an amine solution pump; The amine solution pump is arranged in series with the absorption tower pipeline.

7. The automatic amine solution replenishing device for a carbon capture system according to any one of claims 1 to 4, characterized in that: The liquid level measuring component is a liquid level gauge.

8. A method for automatically replenishing amine solution in a carbon capture system, characterized in that: The carbon capture system amine solution automatic refilling device according to any one of claims 1 to 7 is used, and the carbon capture system amine solution automatic refilling method comprises: The liquid level measuring member measures the liquid level in the amine solution storage tank; The monitoring and early warning system adjusts the amount of amine solution added from the amine solution storage tank to the absorption tower via the amine solution outlet according to the liquid level change monitored by the liquid level measuring component, so as to keep the amine solution in the absorption tower constant.

9. The method for automatically replenishing amine solution in a carbon capture system according to claim 8, characterized in that: The carbon capture system amine solution automatic refilling method further comprises: The monitoring and early warning system calculates the dosage of the amine solution according to the liquid level monitored by the liquid level measuring element and the total amount of amine solution set in the amine solution storage tank.

10. The automatic amine solution replenishing device for a carbon capture system according to claim 8 or 9, characterized in that: The carbon capture system amine solution automatic refilling method further comprises: The monitoring and early warning system sends out an early warning signal when the liquid level monitored by the liquid level measuring component is lower than a preset threshold.

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