Filtering device for carbon capture organic amine absorbent

Abstract

The utility model relates to the technical field of industrial carbon capture, in particular to a filter device for carbon capture of an organic amine absorbent, which comprises a filter cartridge, a filter screen, a steam component, an adjusting component and a control component, the filter screen is used for filtering amine liquid when the amine liquid is conveyed; the steam assembly is suspended on the inner side of the filter screen and is used for spraying high-pressure steam towards the filter screen; the adjusting assembly is connected to the filter cartridge and the steam assembly and is used for driving the steam assembly to move relative to the filter screen; the control assembly is in signal connection with and automatically controls the steam assembly and the adjusting assembly. In the filtering device of the embodiment, the amine liquid is filtered by the filter screen after being input into the filter cartridge and is output from the filter cartridge, when the filter screen needs to be cleaned, the steam assembly can be driven by the adjusting assembly to move relative to the filter screen so as to clean the filter screen, and the control assembly can realize automatic control; the filtering device can effectively improve the filtering quality and efficiency of amine liquid.

Description

Technical Field

[0001] The utility model relates to the technical field of industrial carbon capture, in particular to a filtering device for an organic amine absorbent used for carbon capture. Background Art

[0002] In the current industrial sector, especially in the energy and environmental protection sectors, carbon capture, utilization, and storage (CCUS) technology is increasingly becoming one of the key strategies for mitigating global climate change. Among them, organic amine absorption plays an important role in the carbon capture process and is widely used due to its high efficiency and relatively low cost. However, the complex components in the flue gas of coal-fired power plants, such as SO2, NOx, particulate matter (such as fly ash), hydrogen chloride, hydrogen fluoride, etc., as well as the pyrolysis products and oxidation products in the flue gas, pose a challenge to the cleanliness of organic amine solutions. Long-term operation will lead to the accumulation of particulate matter in the solution, an increase in thermally stable salts, and an increase in the corrosiveness of halide ions. These factors will seriously affect the desulfurization and decarbonization efficiency of the organic amine solution and the stable operation of the equipment.

[0003] Existing organic amine solution purification technologies primarily include heating distillation, amine solution filtration combined with ion exchange, and amine solution filtration combined with electrodialysis desalination. While heating distillation can effectively recover organic amine absorbents, it consumes high amounts of heat and energy, has limited recovery rates, and produces large amounts of waste amine solution, resulting in high treatment costs. Ion exchange and electrodialysis technologies excel in terms of waste amine solution generation, energy consumption, and treatment efficiency, but they encounter a significant challenge in practical application: incompatibility with the local environment. Specifically, under the complex composition of coal-fired power plant flue gas, the efficiency of these technologies decreases significantly: the solution darkens, viscosity increases, particulate matter increases, and heat-stable salts accumulate, ultimately shortening filter element life, increasing maintenance costs, and increasing the workload of operators.

[0004] Therefore, it is necessary to make improvements to the above problems in order to change the current situation. Utility Model Content

[0005] The utility model provides a filtering device for carbon capture organic amine absorbent, which is used to solve the problem of poor filtering effect of organic amine in the prior art.

[0006] The utility model provides a filtering device for carbon capture organic amine absorbent, comprising:

[0007] Filter cartridge, used to transport amine liquid;

[0008] a filter screen, disposed in the filter cartridge, and configured to filter the amine liquid during transport;

[0009] a steam component, suspended on the inner side of the filter screen, and configured to spray high-pressure steam toward the filter screen;

[0010] an adjusting assembly, connected to the filter cartridge and the steam assembly, respectively, and configured to drive the steam assembly to move relative to the filter screen; and

[0011] The control component is respectively connected to the signals and automatically controls the steam component and the regulating component.

[0012] According to one embodiment of the present invention, the control component includes a PLC controller and a differential pressure transmitter, at least two receiving ends of the differential pressure transmitter are used to obtain pressure signals on the inner and outer sides of the filter respectively, and the PLC controller is signal-connected to the differential pressure transmitter, the steam component and the regulating component respectively.

[0013] According to one embodiment of the present utility model, the control component includes a raw material solenoid valve and a clean material solenoid valve, the raw material solenoid valve and the clean material solenoid valve are respectively connected to the PLC controller by signal, the raw material solenoid valve and the clean material solenoid valve are respectively connected to the filter cartridge, and the raw material solenoid valve is used to control the amine liquid input into the filter cartridge, and the clean material solenoid valve is used to control the amine liquid output from the filter cartridge.

[0014] According to one embodiment of the present utility model, the control component also includes a sewage discharge solenoid valve, the sewage discharge solenoid valve signal is connected to the PLC controller, and the sewage discharge solenoid valve is connected to the filter cartridge and connected to the inner side of the filter screen, and the sewage discharge solenoid valve is used to discharge the dirt in the filter screen.

[0015] According to one embodiment of the present invention, the steam component includes a steam nozzle and a steam hose, the steam nozzle is connected to the steam hose, the steam hose is used to connect to external high-pressure steam, and the steam nozzle is suspended on the inside of the filter; the adjustment component includes a drive motor and a lifting mechanism, the drive motor is connected to the filter cartridge, the lifting mechanism is respectively powered by the drive motor and the steam hose, and the drive motor is used to drive the steam nozzle to move up and down relative to the filter through the lifting mechanism.

[0016] According to one embodiment of the present invention, the lifting mechanism includes a hollow worm and a worm wheel, the worm wheel is connected to the output end of the drive motor, the hollow worm is slidably matched with the filter cartridge and meshed with the worm wheel, and the steam hose is passed through the hollow worm.

[0017] According to one embodiment of the present invention, the steam component further includes a steam solenoid valve, which is connected to the steam hose and is used to control the on / off state of the steam hose.

[0018] According to one embodiment of the present invention, the outer wall of the steam hose is provided with a heat insulation layer.

[0019] According to an embodiment of the present invention, a Hall sensor module is provided inside the drive motor, and the Hall sensor module is used to obtain the number of rotations of the rotor of the drive motor.

[0020] According to one embodiment of the present invention, the steam nozzle is provided with a conical nozzle, and the opening of the conical nozzle faces the inner side of the filter screen.

[0021] The implementation of the present invention has the following beneficial effects:

[0022] In the filtering device of this embodiment, the amine liquid is input into the filter cartridge, filtered through the filter screen, and output from the filter cartridge. When the filter screen needs to be cleaned, the steam component can be driven by the adjustment component to move relative to the filter screen to clean the filter screen. The control component can realize automatic control. This filtering device can effectively improve the filtering quality and efficiency of the amine liquid. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0024] in:

[0025] Figure 1 It is a structural schematic diagram of a filtering device for carbon capture organic amine absorbent in an embodiment of the present utility model;

[0026] Reference numerals:

[0027] 10. Filter device; 100. Filter cartridge; 200. Filter screen; 300. Steam assembly; 310. Steam nozzle; 320. Steam hose; 330. Steam solenoid valve; 400. Adjustment assembly; 410. Drive motor; 420. Hollow worm; 430. Worm gear; 500. Control assembly; 510. PLC controller; 520. Differential pressure transmitter; 530. Raw material solenoid valve; 540. Net material solenoid valve; 550. Sewage discharge solenoid valve. DETAILED DESCRIPTION

[0028] To make the purpose, technical solutions, and advantages of the present invention more clear, the following will be combined with the accompanying drawings to clearly and completely describe the technical solutions of the present invention. Obviously, the embodiments described are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0029] See Figure 1 As shown, an embodiment of the present invention provides a filtering device 10 for carbon capture of organic amine absorbent, which includes a filter cartridge 100, a filter screen 200, a steam component 300, an adjustment component 400 and a control component 500; the filter cartridge 100 is used to convey amine liquid; the filter screen 200 is arranged in the filter cartridge 100, and the filter screen 200 is used to filter the amine liquid when conveying the amine liquid; the steam component 300 is suspended on the inner side of the filter screen 200, and the steam component 300 is used to spray high-pressure steam toward the filter screen 200; the adjustment component 400 is respectively connected to the filter cartridge 100 and the steam component 300, and the adjustment component 400 is used to drive the steam component 300 to move relative to the filter screen 200; the control component 500 is respectively signal-connected and automatically controls the steam component 300 and the adjustment component 400.

[0030] In the filter device 10 of this embodiment, the amine liquid is input into the filter cartridge 100, filtered through the filter screen 200, and output from the filter cartridge 100. When the filter screen 200 needs to be cleaned, the steam component 300 can be driven by the adjustment component 400 to move relative to the filter screen 200 to clean the filter screen 200. The control component 500 can realize automatic control. This filter device 10 can effectively improve the filtration quality and efficiency of the amine liquid.

[0031] Specifically in this embodiment, the interior of the filter cartridge 100 is provided with an upper end plate and a lower end plate, which can be fixed to the two ends of the filter screen 200 by bolt connection to fix the filter screen 200 to the filter cartridge 100; of course, in some embodiments, the filter screen 200 and the upper end plate and the lower end plate can also be installed by detachable connection methods such as screws, clamps, pins, etc., to facilitate disassembly and maintenance.

[0032] Specifically, the control component 500 includes a PLC controller 510 and a differential pressure transmitter 520. At least two receiving ends of the differential pressure transmitter 520 are used to obtain pressure signals on the inner and outer sides of the filter 200 respectively. The PLC controller 510 is respectively connected to the differential pressure transmitter 520, the steam component 300 and the regulating component 400.

[0033] In this embodiment, a PLC controller 510 is located outside the filter cartridge 100 and is used to automatically control the operating status of the filter device 10. Specifically, one end of a differential pressure transmitter 520 is connected to the lower portion of the filter cartridge 100 to sense the pressure inside the filter screen 200. The other end of the differential pressure transmitter 520 is connected to the middle portion of the filter cartridge 100 to sense the pressure outside the filter screen 200, thereby measuring the pressure differential between the inside and outside of the filter screen 200.

[0034] In one embodiment, the control component 500 includes a raw material solenoid valve 530 and a net material solenoid valve 540, the raw material solenoid valve 530 and the net material solenoid valve 540 are respectively connected to the PLC controller 510, the raw material solenoid valve 530 and the net material solenoid valve 540 are respectively connected to the filter cartridge 100, and the raw material solenoid valve 530 is used to control the amine liquid input into the filter cartridge 100, and the net material solenoid valve 540 is used to control the amine liquid output from the filter cartridge 100.

[0035] In this embodiment, a raw material inlet is provided at the lower part of the filter cartridge 100, and a raw material solenoid valve 530 is provided at the raw material inlet, which can be used to automatically control the amine liquid from entering the filter cartridge 100; a clean material outlet is provided at the middle and upper part of the filter cartridge 100, and a clean material solenoid valve 540 is provided at the clean material outlet, which can be used to automatically control the filtered amine liquid from outputting the filter cartridge 100.

[0036] Furthermore, the control component 500 also includes a sewage discharge solenoid valve 550, the sewage discharge solenoid valve 550 signal is connected to the PLC controller 510, and the sewage discharge solenoid valve 550 is connected to the filter cartridge 100 and connected to the inner side of the filter net 200. The sewage discharge solenoid valve 550 is used to discharge the dirt in the filter net 200.

[0037] In this embodiment, a sewage outlet is provided at the bottom of the filter cartridge 100 . By providing a sewage outlet solenoid valve 550 , the sewage output from the filter cartridge 100 can be controlled.

[0038] Specifically, the steam component 300 includes a steam nozzle 310 and a steam hose 320. The steam nozzle 310 is connected to the steam hose 320. The steam hose 320 is used to connect to external high-pressure steam, and the steam nozzle 310 is suspended on the inside of the filter 200; the adjustment component 400 includes a drive motor 410 and a lifting mechanism. The drive motor 410 is connected to the filter cartridge 100. The lifting mechanism is respectively powered by the drive motor 410 and the steam hose 320. The drive motor 410 is used to drive the steam nozzle 310 to move up and down relative to the filter 200 through the lifting mechanism.

[0039] In this arrangement, the steam hose 320 is used to deliver high-pressure steam toward the steam nozzle 310. By starting the drive motor 410, the lifting mechanism can be driven to move the steam nozzle 310 relative to the filter 200, so as to drive the steam nozzle 310 to perform high-pressure spray cleaning on the filter 200. The filter 200 adopts a surface filtration form, which is conducive to high-pressure and high-temperature steam cleaning of surface sticky impurities.

[0040] In one embodiment, the lifting mechanism includes a hollow worm 420 and a worm wheel 430. The worm wheel 430 is connected to the output end of the drive motor 410. The hollow worm 420 slides with the filter cartridge 100 and is meshed with the worm wheel 430. The steam hose 320 is passed through the hollow worm 420.

[0041] In this embodiment, the lower end of the hollow worm 420 extends into the interior of the filter 200 and is fixedly connected to the steam nozzle 310. By starting the drive motor 410, the worm gear 430 is driven to rotate, and the steam nozzle 310 is driven to move up and down through the engagement of the worm gear 430 and the hollow worm 420 to adjust the injection direction of the steam nozzle 310.

[0042] Specifically, the steam assembly 300 further includes a steam solenoid valve 330 , which is connected to the steam hose 320 and is used to control the on / off state of the steam hose 320 .

[0043] With this configuration, the PLC controller 510 can be used to control the opening and closing of the steam solenoid valve 330 to automatically control the high-pressure steam delivery of the steam hose 320 .

[0044] Furthermore, the outer wall of the steam hose 320 is provided with a heat insulation layer.

[0045] In this embodiment, a heat insulating layer is provided on the outer wall of the steam hose 320 to prevent the high temperature steam inside the steam hose 320 from dissipating heat to the outside. Specifically, the heat insulating layer can be made of thermal insulation material.

[0046] Furthermore, a Hall sensor module is provided inside the driving motor 410 , and the Hall sensor module is used to obtain the number of rotations of the rotor of the driving motor 410 .

[0047] With this arrangement, by providing a magnetic component on the rotor to cooperate with the Hall sensor module for induction, the Hall sensor module can obtain the number of rotations of the rotor to obtain the precise position of the worm gear 430 and realize automatic control.

[0048] In one embodiment, the steam nozzle 310 has a conical nozzle, and the opening of the conical nozzle faces the inner side of the filter 200 .

[0049] In this embodiment, by providing the steam nozzle 310 with a conical nozzle, the high-pressure steam output by the steam nozzle 310 can be sprayed in a diffuse shape, so as to increase the spray range and dispersion of the steam nozzle 310.

[0050] Specifically, the filter device 10 works as follows:

[0051] (1) First, open the raw material solenoid valve 530 and the net material solenoid valve 540. The organic amine absorbent raw material enters the interior of the filter cartridge 100 from the lower part of the filter cartridge 100. Then, the amine liquid enters the inner side of the filter screen 200. Solid impurities and flocculent matter are deposited on the inner side of the filter screen 200. The absorbent passes through the filter screen 200 and enters the space formed by the outer side of the filter screen 200 and the filter cartridge 100, and leaves the filter device 10 through the net material outlet in the upper middle part.

[0052] (2) As solid impurities and flocculent matter continue to accumulate inside the filter 200, the differential pressure transmitter 8 detects that the pressure difference between the inside and outside of the filter 200 continues to increase. When the pressure difference reaches the set value, the filter device 10 enters the cleaning stage.

[0053] (3) The PLC controller 510 issues a command to close the raw material solenoid valve 530 and the net material solenoid valve 540, and cuts the filter device 10 out of the entire carbon capture system.

[0054] (4) The PLC controller 510 opens the sewage discharge solenoid valve 550 and recovers the organic amine absorbent raw material inside the filtering device 10.

[0055] (5) After the organic amine absorbent raw material recovery is complete, the PLC controller 510 opens the steam solenoid valve 330 and issues a command to the drive motor 410, driving the hollow worm 420 from top to bottom at a fixed speed. High-temperature, high-pressure steam passes through the steam hose 320 and the steam nozzle 310 to form a conical high-pressure steam. The high-pressure steam flushes the inner surface of the filter screen 200, cleaning the solid impurities and flocculent matter accumulated on the inner surface of the filter screen 200 from top to bottom to the lower part of the filter cartridge 100, and then leaves the filter device 10 through the sewage discharge solenoid valve 550.

[0056] (6) To ensure the cleaning effect, the PLC controller 510 can control the driving motor 410 to rotate in the reverse direction, lift the hollow worm 420 to the initial position, and repeat the above cleaning process multiple times.

[0057] (7) After cleaning is completed, the PLC controller 510 closes the steam solenoid valve 330 and the sewage solenoid valve 550, and controls the drive motor 410 to drive the hollow worm 420 to the initial position, and then opens the raw material solenoid valve 530 and the clean material solenoid valve 540, so that the filter device 10 returns to the working state.

[0058] In the description of the embodiments of the present invention, it should be noted that the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing the embodiments of the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore should not be understood as limiting the embodiments of the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only and should not be understood as indicating or implying relative importance.

[0059] In the description of the embodiments of the present invention, it should be noted that, unless otherwise specified or limited, the terms "connected" and "connection" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections, electrical connections; direct connections, or indirect connections through an intermediary. Those skilled in the art will understand the specific meanings of the above terms in the embodiments of the present invention based on specific circumstances.

[0060] In the embodiments of the present invention, unless otherwise expressly specified or limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediate medium. Furthermore, a first feature being "above," "above," or "above" a second feature may mean that the first feature is directly above or diagonally 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 diagonally below the second feature, or simply means that the first feature is lower in level than the second feature.

[0061] In the description of this specification, 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 embodiment of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art can combine and combine different embodiments or examples described in this specification and the features of different embodiments or examples without contradiction.

[0062] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the present invention.

Claims

1. A filtering device for carbon capture organic amine absorbent, characterized in that: include: Filter cartridge, used to transport amine liquid; a filter screen, disposed in the filter cartridge, and configured to filter the amine liquid during transport; a steam component, suspended on the inner side of the filter screen, and configured to spray high-pressure steam toward the filter screen; an adjusting assembly, connected to the filter cartridge and the steam assembly, respectively, and configured to drive the steam assembly to move relative to the filter screen; and The control component is respectively connected to the signals and automatically controls the steam component and the regulating component.

2. The filtering device for carbon capture organic amine absorbent according to claim 1, characterized in that: The control component includes a PLC controller and a differential pressure transmitter. At least two receiving ends of the differential pressure transmitter are used to obtain pressure signals on the inner and outer sides of the filter respectively. The PLC controller is signal-connected to the differential pressure transmitter, the steam component and the regulating component respectively.

3. The filtering device for carbon capture organic amine absorbent according to claim 2, characterized in that: The control component includes a raw material solenoid valve and a net material solenoid valve, the raw material solenoid valve and the net material solenoid valve are respectively connected to the PLC controller by signal, the raw material solenoid valve and the net material solenoid valve are respectively connected to the filter cartridge, and the raw material solenoid valve is used to control the amine liquid input into the filter cartridge, and the net material solenoid valve is used to control the amine liquid output from the filter cartridge.

4. The filtering device for carbon capture organic amine absorbent according to claim 3, characterized in that: The control component also includes a sewage discharge solenoid valve, the sewage discharge solenoid valve signal is connected to the PLC controller, and the sewage discharge solenoid valve is connected to the filter cartridge and communicated with the inner side of the filter screen, and the sewage discharge solenoid valve is used to discharge dirt in the filter screen.

5. The filtering device for carbon capture organic amine absorbent according to claim 1, characterized in that: The steam component includes a steam nozzle and a steam hose, the steam nozzle is connected to the steam hose, the steam hose is used to connect to external high-pressure steam, and the steam nozzle is suspended on the inside of the filter; the adjustment component includes a drive motor and a lifting mechanism, the drive motor is connected to the filter cartridge, the lifting mechanism is respectively powered by the drive motor and the steam hose, and the drive motor is used to drive the steam nozzle to move up and down relative to the filter through the lifting mechanism.

6. The filtering device for carbon capture organic amine absorbent according to claim 5, characterized in that: The lifting mechanism includes a hollow worm and a worm wheel, the worm wheel is connected to the output end of the drive motor, the hollow worm is slidably matched with the filter cartridge and meshedly connected with the worm wheel, and the steam hose is inserted into the hollow worm.

7. The filtering device for carbon capture organic amine absorbent according to claim 5, characterized in that: The steam component further includes a steam solenoid valve, which is connected to the steam hose and is used to control the on / off of the steam hose.

8. The filtering device for carbon capture organic amine absorbent according to claim 5, characterized in that: The outer wall of the steam hose is provided with a heat insulation layer.

9. The filtering device for carbon capture organic amine absorbent according to claim 5, characterized in that: A Hall sensor module is provided inside the drive motor, and the Hall sensor module is used to obtain the number of rotations of the rotor of the drive motor.

10. The filtering device for carbon capture organic amine absorbent according to claim 5, characterized in that: The steam nozzle is provided with a conical nozzle, and the opening of the conical nozzle faces the inner side of the filter screen.

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