A volume adjustable make-up tank and carbon capture system

Abstract

The application discloses a volume-adjustable liquid supplementing tank and a carbon capture system, and relates to the technical field of carbon dioxide capture and transportation. The volume-adjustable liquid supplementing tank comprises a tank body, the tank body comprises a first chamber and a second chamber arranged in sequence, a plurality of unit chambers are arranged in the second chamber, the chamber volumes of the plurality of unit chambers are adjustable and the plurality of unit chambers are used for storing different solvents, each unit chamber is provided with a first liquid outlet, a liquid conveying pipe in communication with the first chamber is connected to the first liquid outlet, an electromagnetic valve is arranged on the liquid conveying pipe, the first chamber is used for temporarily storing the solvents discharged from at least one unit chamber, and the first chamber is provided with a second liquid outlet. The volume-adjustable liquid supplementing tank can realize the supplement of the solution obtained by mixing a plurality of solvents according to a set ratio and the quantitative supplement of a single solvent, and the volume of the unit chamber can be adjusted, the storage amount of the easily-consumed solvents is increased, and the liquid supplementing efficiency is ensured.

Description

Technical Field

[0001] This invention relates to the field of carbon dioxide capture technology, and more specifically, to an adjustable-volume replenishment tank and a carbon capture system. Background Technology

[0002] In carbon capture, utilization and storage technology, carbon capture systems often use storage tanks to replenish the absorbent entering the absorption tower. The absorbent includes components such as water, physical solvents, and organic amines. The storage tank has only one chamber, and the chamber volume is not adjustable. Generally, water, physical solvents, organic amines, and other components are mixed according to a set ratio and stored in the storage tank. The absorbent is replenished quantitatively according to the system loss.

[0003] However, when a single component of the water, physical solvent, or organic amine in the inlet pipe of the absorber is consumed excessively during use, it becomes impossible to add a certain component quantitatively. Even if a solution with a fixed composition ratio is introduced into the inlet pipe, the composition ratio of the solution entering the absorber cannot meet the design requirements. This will lead to an imbalance in the composition ratio of the absorbent, a change in the concentration of the absorbent, and consequently a reduction in the carbon dioxide capture efficiency, increasing the cost of capturing carbon dioxide. Summary of the Invention

[0004] The present invention aims to at least partially solve one of the technical problems in the related art.

[0005] To address this, this invention proposes an adjustable-volume replenishment tank. This adjustable-volume replenishment tank can replenish solutions of various solvents mixed in a set ratio and quantitatively replenish individual solvents by storing multiple solvents separately. At the same time, the volume of the unit chamber can be adjusted to increase the storage capacity of easily consumable solvents and ensure replenishment efficiency.

[0006] This invention also proposes a carbon capture system.

[0007] An adjustable-volume replenishment tank according to an embodiment of the present invention includes a tank body, the tank body including a first chamber and a second chamber arranged sequentially from bottom to top, the second chamber having multiple unit chambers, the volume of the multiple unit chambers being adjustable and used to store different solvents, each unit chamber having a first drain port, the first drain port being connected to an infusion tube, the other end of the infusion tube being located in the first chamber to connect the corresponding unit chamber and the first chamber, the infusion tube being provided with a solenoid valve, the solenoid valve being used to control the opening and closing of the corresponding infusion tube, the first chamber being used to temporarily store solvent discharged from at least one of the unit chambers, the first chamber having a second drain port.

[0008] The adjustable-volume replenishment tank of this invention can replenish solutions of various solvents mixed in a set ratio and quantitatively replenish individual solvents by storing multiple solvents separately. At the same time, the volume of the unit chamber can be adjusted to increase the storage capacity of easily consumable solvents and ensure replenishment efficiency.

[0009] In some embodiments, the second chamber is provided with a plurality of partitions at intervals, and the unit cavity is defined between two adjacent partitions and the tank body, and between the partitions located on both sides and the sidewalls of the tank body. The partitions are deformable in the arrangement direction of the plurality of partitions to increase or decrease the volume of the corresponding unit cavity.

[0010] In this embodiment, by setting a separator, the volume of the unit cavity can be adjusted by utilizing the deformation of the separator itself without changing the position of the separator or the structure of the second chamber. This facilitates the control of different unit cavities to meet the storage requirements of different solvents.

[0011] 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.

[0012] In some embodiments, a liquid level observation window is provided on the tank corresponding to the second chamber, and the liquid level observation window is used to observe the liquid level height of the solvent in the multiple unit chambers.

[0013] In this embodiment, by setting a liquid level observation window, the liquid level height in each unit cavity can be observed when adding solvent. This ensures that the liquid level in the unit cavity containing easily consumed solvent is higher than the liquid level in other unit cavities. This ensures that, at the same horizontal height, the liquid pressure of the solvent in the unit cavity with the higher liquid level is greater than that in the unit cavity with the lower liquid level. At this time, the solvent in the unit cavity with the higher liquid level will deform the partition of that unit cavity to increase the volume of that unit cavity. The actual volume of the unit cavity can be adjusted by controlling the liquid level change in the control unit cavity, making the operation convenient and reliable.

[0014] In some embodiments, the second cavity is provided with a plurality of mounting portions at intervals, the number of mounting portions being greater than the number of partitions, and the partitions being used to be installed in conjunction with the mounting portions.

[0015] In this embodiment, by setting multiple mounting parts, the mounting position of the separator can be adjusted according to actual needs, so as to increase the capacity to consume solvent before adding solvent into the unit cavity. At the same time, it can be combined with a deformable separator to remove the limitation of the maximum deformation of the separator on the volume adjustment of the unit cavity, and ensure that the solvent stored in the unit cavity meets the consumption requirements.

[0016] In some embodiments, the mounting portion is a U-shaped mounting groove provided on the inner wall and bottom wall of the tank. The mounting groove includes two parallel vertical groove sections, each of which is a T-shaped groove. The separator is provided with a T-shaped connecting portion adapted to the T-shaped groove.

[0017] In this embodiment, a T-shaped groove is provided on the mounting groove, and the T-shaped groove is connected to the T-shaped connecting part of the separator to ensure the stability of the separator during installation and use, and to ensure the solvent isolation effect.

[0018] In some embodiments, a sealing gasket is provided in the mounting groove, and / or a sealing sleeve is provided on the periphery of the separator.

[0019] In some embodiments, the first chamber is provided with a stirring assembly and a component measuring instrument. The stirring assembly is used to stir and mix 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.

[0020] In this embodiment, multiple solvents are mixed by a stirring assembly, which facilitates uniform mixing of the solvents, makes it convenient for the component measuring instrument to detect the components, and ensures that the solution to be added meets the liquid supply requirements.

[0021] In some embodiments, the infusion tubing is equipped with a flow meter, which is used to record the flow rate corresponding to the infusion tubing, or...

[0022] Each of the unit chambers is equipped with a liquid level gauge, which is used to record the liquid level change in the corresponding unit chamber to calculate the solvent consumption.

[0023] The carbon capture system of this invention includes a replenishment tank with adjustable volume according to any of the above embodiments. The carbon capture system includes an absorption tower and a return pipe connected to the absorption tower. The second drain port of the replenishment tank is connected to a drain pipe. The drain pipe is connected to the return pipe and is used to deliver a solution of a single solvent or a mixture of multiple solvents to the return pipe.

[0024] The carbon capture system of this invention uses an adjustable-volume replenishment tank to replenish solutions of various solvents mixed in a set ratio and to replenish individual solvents quantitatively. By adjusting the storage amount of easily consumable solvents, replenishment efficiency and reliable supply of each solvent are ensured, so that the solution composition ratio in the absorption tower meets the design requirements, and the capture of carbon dioxide is maintained at a high efficiency, reducing the cost of capturing carbon dioxide. Attached Figure Description

[0025] Figure 1 This is a first-view cross-sectional view of the adjustable-volume replenishment tank according to an embodiment of the present invention.

[0026] Figure 2 This is a cross-sectional view from a second perspective of the adjustable-volume replenishment tank according to an embodiment of the present invention.

[0027] Figure 3 This is a top view of an adjustable-volume replenishment tank according to another embodiment of the present invention.

[0028] Figure label:

[0029] Tank body 1; First chamber 11; Second chamber 12; Unit chamber 121; Infusion pipe 2; Solenoid valve 3; Separator 4; Mounting part 5; Vertical trough section 51; Stirring assembly 6. Detailed Implementation

[0030] Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, and should not be construed as limiting the present invention.

[0031] like Figure 1 , Figure 2 and Figure 3 As shown, the adjustable volume replenishment tank of this invention includes a tank body 1. The tank body 1 includes a first chamber 11 and a second chamber 12 arranged sequentially from bottom to top. The second chamber 12 is provided with a plurality of unit chambers 121. 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. A delivery tube 2 is connected to the first drain port. The other end of the delivery 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 delivery tube 2. The solenoid valve 3 is used to control the opening and closing of the corresponding delivery 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.

[0032] When using the adjustable-volume replenishment tank of this invention, the volume of the corresponding unit chamber 121 can be increased or decreased according to the actual consumption of solvent, so that after adding solvent to each unit chamber 121, each unit chamber 121 can meet the corresponding solution consumption requirements and make the replenishment time of each unit chamber 121 the same. During the use of the replenishment tank, one or more solenoid valves 3 are opened to mix one or more corresponding solvents in the first chamber 11 and finally discharge them through the second drain port.

[0033] The adjustable-volume replenishment tank of this invention can replenish solutions of various solvents mixed in a set ratio and quantitatively replenish individual solvents 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 easily consumable solvents and ensure replenishment efficiency.

[0034] Optionally, the tank body 1 is equipped with a controller, which is electrically connected to multiple solenoid valves 3 to control the operation of the solenoid valves 3.

[0035] Optionally, such as Figure 2 As shown, part of the infusion pipe 2 extends out of the tank body 1, and the solenoid valve 3 is installed on the section of the infusion pipe 2 that extends out of the tank body 1.

[0036] In other embodiments, the infusion tube 2 and the solenoid valve 3 may both be located within the first chamber 11.

[0037] Optionally, each unit cavity 121 is connected to a liquid delivery pipe on its outer side. When the solvent in the unit cavity 121 drops to the 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. It can be carried out by siphon principle or by pumping.

[0038] In some embodiments, such as Figure 1 , Figure 2 and Figure 3 As shown, the second chamber 12 is provided with multiple partitions 4 at intervals. The unit cavity 121 is defined between two adjacent partitions 4 and the tank body 1, and between the partitions 4 located on both sides and the side wall of the tank body 1. The partitions 4 can be deformed in the arrangement direction of the multiple partitions 4 to increase or decrease the volume of the corresponding unit cavity 121.

[0039] By setting the separator 4 and utilizing the deformation of the separator 4 itself, the volume of the unit cavity 121 can be increased or decreased without changing the position of the separator 4 or the structure inside the second chamber 12. This facilitates the control of different unit cavities 121 to meet the storage requirements of different solvents.

[0040] In some embodiments, such as Figure 3 As shown, the separator 4 is a W-shaped tin foil plate with a horizontal cross section. The bottom and sides of the tin foil plate are fixedly connected to the inner wall of the tank 1, and the top of the tin foil plate is in contact with the tank. Solvent is added into the unit cavity 121. When the liquid pressure at the same height in two adjacent unit cavities 121 is different, the tin foil plate will move to the side with weaker liquid pressure to increase the volume of the original unit cavity 121.

[0041] In some embodiments, the separator 4 is an elastic diaphragm made of rubber or polymer plastic. The bottom and sides of the elastic diaphragm are fixedly connected to the inner wall of the tank 1, and the top of the elastic diaphragm is in contact with or fixedly connected to the inner wall of the tank. By adding solvents of different liquid levels into the unit cavity 121, the pressure generated by the liquid itself is used to adjust the separator 4, which is convenient to operate.

[0042] In some embodiments, a liquid level observation window is provided on the tank body 1 corresponding to the second chamber 12. The liquid level observation window is used to observe the liquid level height of the solvent in multiple unit chambers 121.

[0043] By setting up a liquid level observation window, the liquid level in each unit cavity 121 can be observed when adding solvent. This ensures that the liquid level in the unit cavity 121 containing easily consumed solvent is higher than that in other unit cavities 121. This ensures that, at the same horizontal level, the liquid pressure of the solvent in the unit cavity 121 with a higher liquid level is greater than that in the unit cavity 121 with a lower liquid level. In this case, the solvent in the unit cavity 121 with a higher liquid level will deform the partition 4 that makes up the unit cavity 121, thereby increasing 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, making the operation convenient and reliable.

[0044] Optionally, a glass window is provided on one side of the tank body 1 corresponding to the multiple unit cavities 121, or the part of the tank body 1 corresponding to the second chamber 12 is made entirely of transparent material.

[0045] In some embodiments, such as Figure 1 and Figure 2 As shown, the second chamber 12 is provided with multiple mounting parts 5 at intervals. The number of mounting parts 5 is greater than the number of partitions 4. The partitions 4 are used to cooperate with the mounting parts 5. For example, when storing three different solvents, four or five mounting parts 5 can be set, and two partitions 4 can be set. Two of the five mounting parts 5 can be selected to install the partitions 4. The installation position of the partitions 4 can be adjusted according to the demand for solvent consumption.

[0046] By setting multiple mounting parts 5, the mounting position of the separator 4 can be adjusted according to actual needs, so as to increase the capacity to consume solvent before adding solvent into the unit cavity 121. At the same time, it can be combined with the deformable separator 4 to remove the limitation of the maximum deformation of the separator 4 on the volume adjustment of the unit cavity 121, and ensure that the solvent stored in the unit cavity 121 meets the consumption requirements.

[0047] Optionally, at least two mounting portions 5 are provided between two adjacent first drain ports to facilitate the installation and adjustment of the partition plate with the first drain port as the center, thereby increasing the volume of the unit cavity 121 corresponding to the easily consumable solvent.

[0048] In some embodiments, such as Figure 1 and Figure 2 As shown, the mounting part 5 is a U-shaped mounting groove provided on the inner wall and bottom wall of the tank body 1. The mounting groove includes two parallel vertical groove sections 51, and the vertical groove sections 51 are T-shaped grooves. The separator 4 is provided with a T-shaped connecting part that is adapted to the T-shaped groove.

[0049] A T-slot is set on the mounting groove, and the T-shaped connecting part of the separator 4 is inserted into the T-slot. When the separator 4 is under force, the connection can be strengthened by the limiting fit of the T-slot and the T-shaped connecting part, so as to avoid detachment and ensure the separation effect of the separator 4 on different solvents.

[0050] Optionally, the separator 4 is a plate with T-shaped connecting parts on both sides. When the plate is fitted with the mounting part 5, there is good sealing between the plate and the mounting part 5 to prevent the solutions on both sides of the plate from mixing.

[0051] Optionally, the separator 4 includes a U-shaped mating frame and a separator unit disposed within the mating frame. The mating frame has T-shaped connecting parts on both sides. The mating frame is used to seal and fit within the U-shaped mounting groove. The mating frame is used to ensure the connection stability and sealing between the separator unit and the mounting groove. Meanwhile, the separator unit can be an elastic diaphragm made of rubber material or polymer plastic, so that while the separator 4 is movable, it can deform to increase the maximum adjustable volume of the unit cavity 121, ensuring that the solvent stored in the unit cavity 121 meets the consumption requirements.

[0052] In some embodiments, a sealing gasket is provided in the mounting groove. By providing the sealing gasket, the sealing of the connection between the mounting groove and the partition plate is ensured, and the independent storage of different solvents at 121 degrees in each unit cavity is guaranteed.

[0053] In some embodiments, a sealing sleeve is provided on the periphery of the partition 4 to ensure the sealing of the connection between the mounting groove and the partition plate, and to prevent different solvents from mixing in the second chamber 12.

[0054] In some embodiments, such as Figure 1 As shown, the first chamber 11 is equipped with a stirring assembly 6 and a component measuring instrument. The stirring assembly 6 is used to stir and mix multiple solvents in the first chamber 11, and the component measuring instrument is used to analyze the composition of the solution formed after stirring and mixing. By mixing multiple solvents through the stirring assembly 6, it is easy to mix multiple solvents evenly, which facilitates the component measuring instrument to detect the composition and ensures that the solution to be added meets the liquid supply requirements.

[0055] Optionally, the stirring assembly 6 includes a stirring motor, a stirring shaft, and stirring blades. The stirring motor is fixed to the top of the first chamber 11, the stirring shaft is coaxial and fixedly mounted on the output shaft of the stirring motor, and the stirring blades are mounted on the stirring shaft. The stirring motor drives the stirring shaft to rotate, thereby achieving the mixing of multiple solvents.

[0056] Optionally, the portion corresponding to the first chamber 11 of the tank body 1 is conical.

[0057] In some embodiments, the infusion tube 2 is equipped with a flow meter, which is used to record the flow rate of the corresponding infusion tube 2.

[0058] In some embodiments, each unit cavity 121 is provided with a liquid level gauge, which is used to record the liquid level change in the corresponding unit cavity 121 to calculate the solvent consumption.

[0059] By recording the flow rates of different solvents, the results can be compared with those detected by the component measuring instrument, ensuring the degree of mixing and stirring of each solvent is verified, ensuring uniform mixing, and facilitating the control of the discharge volume of each solvent in multiple unit chambers 121.

[0060] The carbon capture system according to an embodiment of the present invention is described below.

[0061] The carbon capture system of this invention includes a replenishment tank with adjustable volume according to any of the above embodiments. The carbon capture system includes an absorption tower and a return pipe connected to the absorption tower. The second drain port of the replenishment tank is connected to a drain pipe, which is connected to the return pipe. The drain pipe is equipped with a one-way valve and a pressure pump. A solution of a single solvent or a mixture of multiple solvents is delivered to the return pipe through the drain pipe and the pressure pump.

[0062] The carbon capture system of this invention uses an adjustable-volume replenishment tank to replenish solutions of various solvents mixed in a set ratio and to replenish individual solvents quantitatively. By adjusting the storage amount of easily consumable solvents, replenishment efficiency and reliable supply of each solvent are ensured, so that the solution composition ratio in the absorption tower meets the design requirements, and the capture of carbon dioxide is maintained at a high efficiency, reducing the cost of capturing carbon dioxide.

[0063] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this invention and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0064] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this invention, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0065] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between them; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0066] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "over," and "on top" of the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0067] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0068] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. A volume adjustable fluid replacement tank, characterized by, The device includes a tank body, which comprises a first chamber and a second chamber arranged sequentially from bottom to top. The second chamber contains multiple unit chambers, the volume of which is adjustable and used to store different solvents. Each unit chamber has a first drain port connected to a delivery tube. The other end of the delivery tube is located in the first chamber to connect the corresponding unit chamber and the first chamber. The delivery tube is equipped with a solenoid valve for controlling the opening and closing of the corresponding delivery tube. The first chamber is used to temporarily store solvent discharged from at least one of the unit chambers. The first chamber has a second drain port. The second chamber is provided with multiple partitions at intervals. The unit cavity is defined by the space between two adjacent partitions and the tank body, and by the spacers located on both sides and the side wall of the tank body. The partitions can be deformed in the arrangement direction of the multiple partitions to increase or decrease the volume of the corresponding unit cavity. The partition is a tin foil plate with a horizontal cross section of W, or the partition is an elastic diaphragm made of rubber material or polymer plastic. The tank body is provided with a liquid level observation window corresponding to the second chamber, and the liquid level observation window is used to observe the liquid level height of the solvent in the multiple unit chambers; The second chamber is provided with a plurality of mounting portions at intervals, the number of mounting portions being greater than the number of partitions, and the partitions being used to fit into the mounting portions; The mounting part is a U-shaped mounting groove provided on the inner wall and bottom wall of the tank. The mounting groove includes two parallel vertical groove sections, each of which is a T-shaped groove. The separator is provided with a T-shaped connecting part that is adapted to the T-shaped groove.

2. The adjustable-volume replenishment tank according to claim 1, characterized in that, The mounting groove is provided with a sealing gasket, and / or the periphery of the separator is provided with a sealing sleeve.

3. The adjustable-volume replenishment tank according to any one of claims 1-2, characterized in that, The first chamber is equipped with a stirring assembly and a component measuring instrument. The stirring assembly is used to stir and mix multiple solvents in the first chamber, and the component measuring instrument is used to analyze the composition of the solution formed after stirring and mixing.

4. The adjustable-volume replenishment tank according to claim 3, characterized in that, The infusion tubing is equipped with a flow meter, which is used to record the flow rate corresponding to the infusion tubing, or... Each of the unit chambers is equipped with a liquid level gauge, which is used to record the liquid level change in the corresponding unit chamber to calculate the solvent consumption.

5. A carbon capture system, characterized in that, The system includes an adjustable-volume replenishment tank as described in any one of claims 1-4, wherein the carbon capture system includes an absorption tower and a return pipe connected to the absorption tower, and the second drain port of the replenishment tank is connected to a drain pipe, which is connected to the return pipe and used to deliver a solution of a single solvent or a mixture of multiple solvents to the return pipe.

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