CN118770721A - A volume-adjustable liquid replenishment tank and carbon capture system - Google Patents

Abstract

The invention discloses a liquid supplementing tank with an adjustable volume and a carbon capturing system, and relates to the technical field of carbon dioxide capturing and transportation. The volume-adjustable liquid supplementing tank comprises a tank body, wherein the tank body comprises a first cavity and a second cavity which are sequentially arranged, a plurality of unit cavities are arranged in the second cavity, the cavity volumes of the unit cavities are adjustable and are used for storing different solvents, each unit cavity is provided with a first liquid outlet, a liquid conveying pipe communicated with the first cavity is connected onto the first liquid outlet, an electromagnetic valve is arranged on the liquid conveying pipe, the first cavity is used for temporarily storing at least one solvent discharged by the unit cavity, and the first cavity is provided with a second liquid outlet. According to the volume-adjustable fluid infusion tank, multiple solvents are stored independently, so that the solution infusion and the quantitative infusion of single solvents after the multiple solvents are mixed according to the set proportion can be realized, meanwhile, the volume of a unit cavity can be adjusted, the storage capacity of the solvents easy to consume is increased, and the fluid infusion efficiency is ensured.

Description

A volume-adjustable liquid replenishment tank and carbon capture system

Technical Field

The present invention relates to the technical field of carbon dioxide capture, and in particular to a volume-adjustable liquid replenishment tank and a carbon capture system.

Background Art

In carbon capture, utilization and storage technology, the carbon capture system often uses a storage tank to replenish the absorbent entering the absorption tower. The absorbent includes water, physical solvents, organic amines and other ingredients. The storage tank has only one chamber, and the chamber volume is not adjustable. Generally, water, physical solvents, organic amines and other ingredients are mixed according to a set ratio and stored in the storage tank. The absorbent is quantitatively replenished according to the system loss.

However, when individual components of the water, physical solvent and organic amine in the liquid inlet pipe of the absorption tower are consumed excessively during use, it is impossible to add a certain component quantitatively, and passing a solution with a fixed composition ratio into the liquid inlet pipe still cannot make the composition ratio of the solution entering the absorption tower meet the design requirements, which will lead to an imbalance in the absorbent composition ratio and a change in the absorbent concentration, thereby reducing the capture efficiency of carbon dioxide and increasing the consumption cost of capturing carbon dioxide.

Summary of the invention

The present invention aims to solve one of the technical problems in the related art at least to a certain extent.

To this end, an embodiment of the present invention proposes a fluid replenishment tank with adjustable volume. The fluid replenishment tank with adjustable volume can achieve replenishment of solutions after multiple solvents are mixed in a set ratio and quantitative replenishment of a single solvent by separately storing multiple solvents. At the same time, the volume of the unit cavity can be adjusted to increase the storage capacity of consumable solvents and ensure fluid replenishment efficiency.

An embodiment of the present invention further provides a carbon capture system.

The volume-adjustable fluid infusion tank of an embodiment of the present invention comprises a tank body, wherein the tank body comprises a first chamber and a second chamber arranged in sequence from bottom to top, wherein a plurality of unit chambers are arranged in the second chamber, wherein the chamber volumes of the plurality of unit chambers are adjustable and are used to store different solvents, wherein each of the unit chambers is provided with a first drain port, wherein an infusion tube is connected to the first drain port, wherein the other end of the infusion tube is located in the first chamber to connect the corresponding unit chamber and the first chamber, wherein an electromagnetic valve is provided on the infusion tube, wherein the electromagnetic valve is used to control the opening and closing of the corresponding infusion tube, wherein the first chamber is used to temporarily store the solvent discharged from at least one of the unit chambers, and wherein the first chamber is provided with a second drain port.

The volume-adjustable rehydration tank of the embodiment of the present invention can achieve replenishment of solutions after multiple solvents are mixed in a set ratio and quantitative replenishment of a single solvent by storing multiple solvents separately. At the same time, the volume of the unit cavity can be adjusted to increase the storage capacity of consumable solvents and ensure rehydration efficiency.

In some embodiments, a plurality of partitions are arranged in the second chamber, and the unit cavity is limited between two adjacent partitions and the tank body and between the partitions located on both sides and the side walls of the tank body. The partition can be deformed in the arrangement direction of the plurality of partitions to increase or decrease the volume of the corresponding unit cavity.

In this embodiment, by providing a partition and utilizing the deformation of the partition itself, the volume of the unit cavity can be adjusted without changing the position of the partition and the structure in the second chamber, thereby facilitating the regulation of different unit cavities to meet the storage capacity requirements of different solvents.

In some embodiments, the separator is a tin foil plate with a W-shaped horizontal cross-section, or the separator is an elastic diaphragm made of rubber material or polymer plastic.

In some embodiments, a liquid level observation window is provided on the tank body corresponding to the second chamber, and the liquid level observation window is used to observe the liquid level height of the solvent in the plurality of unit cavities.

In this embodiment, a liquid level observation window is provided, and when solvent is added to each unit cavity, the liquid level height in the unit cavity can be observed, so that the liquid level height in the unit cavity where the easily consumable solvent is located is higher than the liquid level heights in other unit cavities, so that in multiple unit cavities, at the same horizontal height, the liquid pressure of the solvent in the unit cavity with a high liquid level is greater than the liquid pressure of the solvent in the unit cavity with a low liquid level. At this time, the solvent in the unit cavity with a high liquid level will deform the partition constituting the unit cavity to increase the volume of the unit cavity. The actual volume of the unit cavity can be adjusted by controlling the liquid level change in the unit cavity, and the operation is convenient and reliable.

In some embodiments, a plurality of mounting portions are provided in the second chamber at intervals, the number of the mounting portions is greater than the number of the partitions, and the partitions are used to be mounted in cooperation with the mounting portions.

In this embodiment, by providing multiple installation parts, the installation position of the partition can be adjusted according to actual needs, so as to increase the capacity of the consumed solvent before adding the solvent into the unit cavity. At the same time, it can be combined with a deformable partition to remove the limitation of the maximum deformation of the partition on the volume adjustment of the unit cavity, thereby ensuring that the solvent stored in the unit cavity meets the consumption requirements.

In some embodiments, the mounting portion is a U-shaped mounting groove provided on the inner wall and bottom wall of the tank body, the mounting groove includes two parallel vertical groove sections, the vertical groove sections are T-shaped grooves, and the partition is provided with a T-shaped connecting portion adapted to the T-shaped groove.

In this embodiment, a T-shaped groove is provided on the installation groove, and the T-shaped groove is connected to the T-shaped connecting portion of the separator, thereby ensuring the stability of the separator during installation and use, and ensuring the isolation effect on the solvent.

In some embodiments, a sealing gasket is provided in the installation groove, and/or a sealing sleeve is provided on the peripheral side of the partition.

In some embodiments, a stirring component and a component measuring instrument are provided in the first chamber, the stirring component is used to stir and mix the multiple solvents in the first chamber, and the component measuring instrument is used to perform component analysis on the solution formed after stirring and mixing.

In this embodiment, a plurality of solvents are mixed by a stirring component, so that the plurality of solvents are mixed evenly, and a component measuring instrument is convenient for component detection, thereby ensuring that the solution to be added meets the liquid supply demand.

In some embodiments, the infusion tube is provided with a flow meter, and the flow meter is used to record the flow corresponding to the infusion tube, or,

A liquid level meter is provided in each unit cavity, and the liquid level meter is used to record the liquid level change in the corresponding unit cavity to calculate the solvent consumption.

The carbon capture system of an embodiment of the present invention comprises a volume-adjustable rehydration tank according to any of the above-mentioned embodiments, wherein the carbon capture system comprises an absorption tower and a return pipe connected to the absorption tower, wherein the second discharge port of the rehydration tank is connected to a discharge pipe, and the discharge pipe is connected to the return pipe and is used to transport a single solvent or a mixed solution of multiple solvents to the return pipe.

The carbon capture system of the embodiment of the present invention adopts a rehydration tank with adjustable volume to realize the replenishment of a solution after mixing multiple solvents according to a set ratio and the quantitative replenishment of a single solvent. By adjusting the storage volume of the consumable solvent, the rehydration efficiency and the reliable supply of each solvent are guaranteed, so that the solution composition ratio in the absorption tower meets the design requirements, the capture of carbon dioxide will be continuously maintained at a high efficiency, and the consumption cost of capturing carbon dioxide will be reduced.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG1 is a cross-sectional view of a fluid infusion tank with adjustable volume according to an embodiment of the present invention from a first viewing angle.

FIG. 2 is a cross-sectional view of the volume-adjustable fluid infusion tank according to the embodiment of the present invention from a second viewing angle.

FIG. 3 is a top view of a fluid infusion tank with adjustable volume according to another embodiment of the present invention.

Reference numerals:

Tank body 1; first chamber 11; second chamber 12; unit chamber 121; infusion tube 2; solenoid valve 3; partition 4; mounting portion 5; vertical groove section 51; stirring assembly 6.

DETAILED DESCRIPTION

Embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to be used to explain the present invention, but should not be understood as limiting the present invention.

As shown in Figures 1, 2 and 3, the volume-adjustable fluid infusion tank of an embodiment of the present invention includes a tank body 1, and the tank body 1 includes a first chamber 11 and a second chamber 12 arranged in sequence from bottom to top. A plurality of unit chambers 121 are provided in the second chamber 12, and the chamber volumes of the plurality of unit chambers 121 are adjustable and are used to store different solvents. Each unit chamber 121 is provided with a first drain port, and an infusion tube 2 is connected to the first drain port. The other end of the infusion tube 2 is located in the first chamber 11 to connect the corresponding unit chamber 121 and the first chamber 11. A solenoid valve 3 is provided on the infusion tube 2, and the solenoid valve 3 is used to control the opening and closing of the corresponding infusion tube 2. The first chamber 11 is used to temporarily store the solvent discharged from at least one unit chamber 121, and the first chamber 11 is provided with a second drain port.

When in use, the volume-adjustable rehydration tank of the embodiment of the present invention can increase or decrease the volume of the corresponding unit cavity 121 according to the actual consumption of the solvent, so that after adding solvent to each unit cavity 121, each unit cavity 121 can meet the corresponding solution consumption requirement and make the rehydration time of each unit cavity 121 the same. During the use of the rehydration tank, one or more solenoid valves 3 are opened to allow the corresponding one or more solvents to be mixed in the first chamber 11 and finally discharged through the second drain port.

The volume-adjustable rehydration tank of the embodiment of the present invention can achieve replenishment of solutions after multiple solvents are mixed in a set ratio and quantitative replenishment of a single solvent by storing multiple solvents separately. At the same time, the volume of the unit cavity 121 can be adjusted to increase the storage capacity of consumable solvents and ensure rehydration efficiency.

Optionally, a controller is provided on the tank body 1 , and the controller is electrically connected to the plurality of solenoid valves 3 to control the operation of the solenoid valves 3 .

Optionally, as shown in FIG. 2 , part of the infusion tube 2 extends out of the tank body 1 , and the solenoid valve 3 is arranged on the tube section of the infusion tube 2 extending out of the tank body 1 .

In other embodiments, the infusion tube 2 and the solenoid valve 3 may also be disposed in the first chamber 11 .

Optionally, each unit cavity 121 is connected to a liquid delivery pipe on the outside. When the solvent in the unit cavity 121 drops to a set liquid level, solvent can be added to the unit cavity 121 through the corresponding liquid delivery pipe. There is no limitation on the liquid delivery method of the liquid delivery pipe, and the siphon principle can be used or a pump body can be used for pumping.

In some embodiments, as shown in Figures 1, 2 and 3, a plurality of partitions 4 are arranged in the second chamber 12, and a unit cavity 121 is limited between two adjacent partitions 4 and the tank body 1, and between the partitions 4 located on both sides and the side walls of the tank body 1, and the partitions 4 can be deformed in the arrangement direction of the plurality of partitions 4 to increase or decrease the volume of the corresponding unit cavity 121.

By setting the partition 4 and utilizing the deformation of the partition 4 itself, the volume of the unit cavity 121 can be increased or decreased without changing the position of the partition 4 and the structure in the second chamber 12, thereby facilitating the regulation of different unit cavities 121 to meet the demand for storage of different solvents.

In some embodiments, as shown in FIG. 3 , the separator 4 is a tin foil plate with a W-shaped horizontal cross-section, the bottom and both sides of the tin foil plate are fixedly connected to the inner wall of the tank body 1, and the top of the tin foil plate is in contact with the tank body. When solvent is added into the unit cavity 121, when the liquid pressures at the same height in two adjacent unit cavities 121 are different, the tin foil plate will be driven to move to the side with weaker liquid pressure to increase the volume of the original unit cavity 121.

In some embodiments, the separator 4 is an elastic diaphragm made of rubber material or polymer plastic. The bottom and both sides of the elastic diaphragm are fixedly connected to the inner wall of the tank body 1, and the top of the elastic diaphragm is in contact with or fixedly connected to the inner wall of the tank body. By adding solvents of different liquid levels into the unit cavity 121, the separator 4 can be adjusted by utilizing the pressure generated by the liquid itself, which is convenient to operate.

In some embodiments, a liquid level observation window is provided on the tank body 1 corresponding to the second chamber 12 , and the liquid level observation window is used to observe the liquid level height of the solvent in the plurality of unit cavities 121 .

By setting a liquid level observation window, when adding solvent to each unit cavity 121, the liquid level height in the unit cavity 121 can be observed, so that the liquid level height in the unit cavity 121 where the easily consumable solvent is located is higher than the liquid level heights in other unit cavities 121, so that among multiple unit cavities 121, at the same horizontal height, the liquid pressure of the solvent in the unit cavity 121 with a high liquid level is greater than the liquid pressure of the solvent in the unit cavity 121 with a low liquid level. At this time, the solvent in the unit cavity 121 with a high liquid level will deform the partition 4 constituting the unit cavity 121 to increase the volume of the unit cavity 121. The actual volume of the unit cavity 121 can be adjusted by controlling the liquid level change in the unit cavity 121, and the operation is convenient and reliable.

Optionally, a glass window is provided on one side of the tank body 1 corresponding to the plurality of unit cavities 121 , or a portion of the tank body 1 corresponding to the second chamber 12 is made entirely of a transparent material.

In some embodiments, as shown in Figures 1 and 2, a plurality of mounting portions 5 are provided at intervals in the second chamber 12, and the number of the mounting portions 5 is greater than the number of the partitions 4. The partitions 4 are used to cooperate with and be installed on the mounting portions 5. For example, when storing three different solvents, four mounting portions 5 or five mounting portions 5 may be provided, and two partitions 4 may be provided. Two of the five mounting portions 5 are selected for installation of the partitions 4, and the installation position of the partitions 4 may be adjusted according to the demand for solvent consumption.

By setting a plurality of mounting parts 5, the mounting position of the partition 4 can be adjusted according to actual needs, so as to increase the capacity to consume the solvent before adding the solvent into the unit cavity 121. At the same time, it can be combined with the deformable partition 4 to remove the limitation of the maximum deformation amount of the partition 4 on the volume adjustment of the unit cavity 121, thereby ensuring that the solvent stored in the unit cavity 121 meets the consumption requirements.

Optionally, at least two mounting portions 5 are provided between two adjacent first liquid discharge ports, so as to facilitate installation and adjustment of the partition plate with the first liquid discharge ports as the center, thereby facilitating increasing the volume of the unit cavity 121 corresponding to the consumable solvent.

In some embodiments, as shown in Figures 1 and 2, the mounting portion 5 is a U-shaped mounting groove provided on the inner wall and bottom wall of the tank body 1, and the mounting groove includes two parallel vertical groove sections 51, the vertical groove sections 51 are T-shaped grooves, and the partition 4 is provided with a T-shaped connecting portion adapted to the T-shaped groove.

A T-slot is set on the installation groove, and the T-connecting part of the separator 4 is inserted into the T-slot. When the separator 4 is subjected to force, the firmness of the connection can be increased by the limiting cooperation between the T-slot and the T-connecting part to avoid disconnection, thereby ensuring the partition effect of the separator 4 on different solvents.

Optionally, the separator 4 is a plate body, and T-shaped connecting parts are provided on both sides of the plate body. When the plate body is matched with the mounting part 5, there is good sealing between the plate body and the mounting part 5 to avoid mixing of solutions on both sides of the plate body.

Optionally, the partition 4 includes a U-shaped mating frame and a partition unit arranged in the mating frame. T-shaped connecting parts are provided on both sides of the mating frame. The mating frame is used to seal and fit in the U-shaped mounting groove. The mating frame is used to ensure the connection stability and sealing between the partition unit and the mounting groove. At the same time, the partition unit can be an elastic diaphragm made of rubber material or polymer plastic, so as to ensure that the partition 4 can be deformed to increase the maximum adjustable volume of the unit cavity 121 while the partition 4 is movable, thereby ensuring that the solvent stored in the unit cavity 121 meets the consumption requirements.

In some embodiments, a sealing gasket is provided in the installation groove. By providing the sealing gasket, the sealing of the connection position between the installation groove and the partition plate is ensured, and the independent storage of different solvents at 121 degrees in each unit cavity is ensured.

In some embodiments, a sealing sleeve is provided on the peripheral side of the partition 4 to ensure the sealing of the connection position between the installation groove and the partition plate and to prevent different solvents from mixing in the second chamber 12 .

In some embodiments, as shown in FIG1 , a stirring component 6 and a component measuring instrument are provided in the first chamber 11. The stirring component 6 is used to stir and mix the multiple solvents in the first chamber 11, and the component measuring instrument is used to perform component analysis on the solution formed after stirring and mixing. By mixing the multiple solvents through the stirring component 6, it is convenient to mix the multiple solvents evenly, and it is convenient for the component measuring instrument to perform component detection to ensure that the solution to be added meets the liquid supply demand.

Optionally, the stirring assembly 6 includes a stirring motor, a stirring shaft and a stirring blade. The stirring motor is fixed on the top of the first chamber 11, the stirring shaft is coaxially and fixedly arranged on the output shaft of the stirring motor, and the stirring blade is arranged on the stirring shaft. The stirring shaft is driven by the stirring motor to rotate, thereby achieving mixing of multiple solvents.

Optionally, the portion of the tank body 1 corresponding to the first chamber 11 is conical.

In some embodiments, a flow meter is provided on the infusion tube 2 , and the flow meter is used to record the flow of the corresponding infusion tube 2 .

In some embodiments, a liquid level meter is provided in each unit cavity 121 , and the liquid level meter is used to record the change of the liquid level in the corresponding unit cavity 121 to calculate the solvent consumption.

By recording the flow rates of different solvents, the flow rates can be compared with the composition results detected by the composition measuring instrument to verify the mixing degree of each solvent, ensure uniform mixing, and facilitate control of the discharge volume of each solvent in multiple unit cavities 121.

The carbon capture system according to an embodiment of the present invention is described below.

The carbon capture system of an embodiment of the present invention includes a volume-adjustable liquid replenishment tank according to any of the above embodiments, and the carbon capture system includes an absorption tower and a return pipe connected to the absorption tower. The second liquid discharge port of the liquid replenishment tank is connected to a discharge pipe, and the discharge pipe is communicated with the return pipe. A one-way valve and a pressure pump are provided on the discharge pipe, and a single solvent or a mixed solution of multiple solvents is transported to the return pipe through the discharge pipe and the pressure pump.

The carbon capture system of the embodiment of the present invention adopts a rehydration tank with adjustable volume to realize the replenishment of a solution after mixing multiple solvents according to a set ratio and the quantitative replenishment of a single solvent. By adjusting the storage volume of the consumable solvent, the rehydration efficiency and the reliable supply of each solvent are guaranteed, so that the solution composition ratio in the absorption tower meets the design requirements, the capture of carbon dioxide will be continuously maintained at a high efficiency, and the consumption cost of capturing carbon dioxide will be reduced.

In the description of the present invention, it is to be understood that the terms “center”, “longitudinal”, “lateral”, “length”, “width”, “thickness”, “up”, “down”, “front”, “back”, “left”, “right”, “vertical”, “horizontal”, “top”, “bottom”, “inside”, “outside”, “clockwise”, “counterclockwise”, “axial”, “radial”, “circumferential”, etc., indicating orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection, an electrical connection, or communication with each other; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. 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 this specification, 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 the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

Although the embodiments of the present invention have been shown and described above, it is to be understood that the above embodiments are exemplary and are not to be construed as limitations of the present invention. A person skilled in the art may change, modify, replace and vary the above embodiments within the scope of the present invention.

Claims (10)

1. A volume-adjustable fluid infusion tank, characterized in that it includes a tank body, the tank body includes a first chamber and a second chamber arranged in sequence from bottom to top, the second chamber is provided with a plurality of unit chambers, the chamber volumes of the plurality of unit chambers are adjustable and are used to store different solvents, each of the unit chambers is provided with a first drain port, the first drain port is connected to an infusion tube, the other end of the infusion tube is located in the first chamber to connect the corresponding unit chamber and the first chamber, the infusion tube is provided with an electromagnetic valve, the electromagnetic valve is used to control the opening and closing of the corresponding infusion tube, the first chamber is used to temporarily store the solvent discharged from at least one of the unit chambers, and the first chamber is provided with a second drain port. 2. The volume-adjustable fluid infusion tank according to claim 1 is characterized in that a plurality of partitions are arranged in the second chamber, and the unit cavity is limited between two adjacent partitions and the tank body and between the partitions located on both sides and the side walls of the tank body, and the partition can be deformed in the arrangement direction of the plurality of partitions to increase or decrease the volume of the corresponding unit cavity. 3. The volume-adjustable fluid infusion tank according to claim 2 is characterized in that the separator is a tin foil plate with a W-shaped horizontal cross-section, or the separator is an elastic diaphragm made of rubber material or polymer plastic. 4. The volume-adjustable liquid replenishing tank according to claim 3 is characterized in that a liquid level observation window is provided on the tank body corresponding to the second chamber, and the liquid level observation window is used to observe the liquid level height of the solvent in the plurality of unit cavities. 5. The volume-adjustable fluid infusion tank according to claim 2 is characterized in that a plurality of mounting portions are provided in the second chamber at intervals, the number of the mounting portions is greater than the number of the partitions, and the partitions are used to be mounted in cooperation with the mounting portions. 6. The volume-adjustable fluid infusion tank according to claim 5 is characterized in that the mounting portion is a U-shaped mounting groove provided on the inner wall and bottom wall of the tank body, the mounting groove includes two parallel vertical groove sections, the vertical groove sections are T-shaped grooves, and the partition is provided with a T-shaped connecting portion adapted to the T-shaped groove. 7. The volume-adjustable fluid infusion tank according to claim 6, characterized in that a sealing gasket is provided in the mounting groove, and/or a sealing sleeve is provided on the peripheral side of the partition. 8. The volume-adjustable fluid infusion tank according to any one of claims 1-7 is characterized in that a stirring component and a component measuring instrument are provided in the first chamber, the stirring component is used to stir and mix the multiple solvents in the first chamber, and the component measuring instrument is used to perform component analysis on the solution formed after stirring and mixing. 9. The volume-adjustable infusion tank according to claim 8, characterized in that a flow meter is provided on the infusion tube, and the flow meter is used to record the flow corresponding to the infusion tube, or, A liquid level meter is provided in each unit cavity, and the liquid level meter is used to record the liquid level change in the corresponding unit cavity to calculate the solvent consumption. 10. A carbon capture system, characterized in that it comprises the volume-adjustable rehydration tank according to any one of claims 1 to 9, the carbon capture system comprises an absorption tower and a return pipe connected to the absorption tower, the second liquid discharge port of the rehydration tank is connected to a discharge pipe, the discharge pipe is in communication with the return pipe and is used to transport a single solvent or a mixed solution of multiple solvents to the return pipe.