Fiber membrane contactor capable of removing carbon dioxide in flue gas

Abstract

The utility model discloses a fibrous membrane contactor capable of removing carbon dioxide in flue gas, which belongs to the technical field of flue gas filtration, and adopts the technical scheme that the fibrous membrane contactor comprises a separation box, a fibrous membrane structure is arranged on the inner wall of the separation box, a discharge cylinder is arranged on the inner side of the fibrous membrane structure, the separation box is a hollow annular cylinder, and the discharge cylinder is arranged on the inner side of the fibrous membrane structure. Input pipes are arranged on the inner side and the outer side of the separation box, a discharge pipe is arranged on the outer side of the separation box, and an output disc is arranged at the bottom of a discharge barrel, by arranging a matching assembly, flue gas entering the input pipes can be preliminarily filtered, impurities and particulate matter in the flue gas can be preliminarily filtered, and the flue gas can be conveniently discharged; and after flue gas enters the separation box along the input pipe, carbon dioxide permeates the fiber membrane faster than the flue gas, and is discharged through discharge pipes arranged at the top and the bottom of the inner side of the separation box, and collection can be facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of flue gas filtration, in particular to a fiber membrane contactor capable of removing carbon dioxide from flue gas. Background Art

[0002] Flue gas is a mixture of gases and smoke, and is the main cause of atmospheric pollution in residential areas. The composition of flue gas is very complex. Gases include water vapor, sulfur dioxide, nitrogen, oxygen, carbon monoxide, carbon dioxide, hydrocarbons and nitrogen oxides, etc. Smoke includes fuel ash, coal particles, oil droplets and high-temperature cracking products, etc. The pollution of air by smoke is closely related to meteorological conditions. Wind, atmospheric stability, turbulence, etc. are closely related to the atmospheric pollution status. In addition, photochemistry and biochemistry also have a certain impact on flue gas pollution.

[0003] When filtering flue gas, waste gas and particulate matter such as sulfide are usually removed through structures such as spray towers, and some of the gases can be reused, so the carbon dioxide in the flue gas needs to be removed. Existing flue gas filtration rarely performs special removal operations for carbon dioxide, and even if it is removed, the efficiency needs to be improved. Utility Model Content

[0004] The utility model provides a fiber membrane contactor capable of removing carbon dioxide from flue gas, aiming to solve the problem that carbon dioxide is seldom removed during existing flue gas filtration and the efficiency needs to be improved even if it is removed.

[0005] The utility model is implemented as follows: a fiber membrane contactor capable of removing carbon dioxide from flue gas comprises a separation box, the inner wall of the separation box is provided with a fiber membrane structure, the inner side of the fiber membrane structure is provided with a discharge cylinder, the separation box is a hollow annular cylinder, the inner and outer sides of the separation box are provided with input pipes, the outer side of the separation box is provided with a discharge pipe, the bottom of the discharge cylinder is provided with an output disk, and a matching component is provided on the right side of the input pipe;

[0006] The matching component comprises two smoke ducts, the inner side of which is movably connected with a mesh frame, the inner side of the left mesh frame is provided with an activated carbon filter block, and the inner side of the right mesh frame is provided with a filter screen.

[0007] In order to improve the sealing performance between structures, as a preferred fiber membrane contactor for removing carbon dioxide from flue gas according to the utility model, the inner wall of the separation box is provided with a sealing plug, and the inner side of the sealing plug is bonded to the fiber membrane structure.

[0008] In order to avoid air leakage in the flue gas duct, as a preferred fiber membrane contactor for removing carbon dioxide from flue gas in the utility model, grooves are provided on opposite sides of the two flue gas ducts, and a sealing strip is movably connected to the inner side of the groove.

[0009] In order to facilitate the connection of the output pipe, as a preferred fiber membrane contactor for removing carbon dioxide from flue gas of the utility model, a connecting pipe is bolted to the outside of the input pipe, and the right side of the connecting pipe is movably connected to a matching component.

[0010] In order to facilitate the fixation of the two flue gas ducts and avoid the loosening of the structure, a fiber membrane contactor capable of removing carbon dioxide from flue gas is preferably used in the utility model. The right side of the connecting pipe and the left side of the flue gas duct are bolted with limiting rings, and the right side of the outer side of the flue gas duct is provided with a clamping ring.

[0011] In order to facilitate the connection of the flue gas duct and the connecting pipe, a fiber membrane contactor capable of removing carbon dioxide from flue gas is preferably used in the utility model. The outer side of the flue gas duct is movably connected with a connecting hoop, the front connecting hoop and the rear connecting hoop are rotatably connected by a hinge, and a buckle is provided at the bottom of the connecting hoop.

[0012] In order to facilitate the limiting effect of the connection of the structure, as a preferred fiber membrane contactor capable of removing carbon dioxide from flue gas of the utility model, the inner side of the connecting hoop is movably connected to the limiting ring.

[0013] In order to facilitate the position limitation of the mesh frame, as a preferred fiber membrane contactor capable of removing carbon dioxide from flue gas of the utility model, the inner side of the flue gas duct is bolted with an inner ring, and the inner side of the inner ring is clamped with the mesh frame.

[0014] Compared with the prior art, the beneficial effects of the utility model are:

[0015] The fiber membrane contactor capable of removing carbon dioxide from flue gas can facilitate preliminary filtration of the flue gas entering the input pipe by setting matching components, so as to perform preliminary filtration of impurities and particulate matter therein, thereby avoiding pollution to the internal structure and causing excessive consumption. After the flue gas enters the separation box along the input pipe, the carbon dioxide will penetrate the fiber membrane faster than the flue gas, and be discharged through the discharge pipes set at the top and bottom of the inner side of the separation box, and can be easily collected. The flue gas that cannot pass through the fiber membrane structure will be discharged into the discharge cylinder through the pipeline and output along the output disk. Because the fiber membrane structure is annular in design, the area that can contact the gas at the same time is large, and its efficiency is also high. Because the incoming flue gas is preliminarily filtered, it is not easy to pollute the fiber membrane structure, thereby extending the service life of the structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is the overall structural diagram of the fiber membrane contactor capable of removing carbon dioxide from flue gas according to the utility model;

[0017] Figure 2 It is a schematic diagram of the internal structure of the utility model;

[0018] Figure 3 It is a structural schematic diagram of the matching components of the utility model;

[0019] Figure 4 This is a schematic diagram of the structure of the connecting pipe of the utility model;

[0020] Figure 5 It is a schematic diagram of the external structure of the separation box of the utility model.

[0021] In the figure, 1, separation box; 2, fiber membrane structure; 3, discharge cylinder; 4, input pipe; 5, discharge pipe; 6, output disk; 7, matching components; 701, flue gas duct; 702, mesh frame; 703, activated carbon filter block; 704, filter screen; 8, sealing plug; 9, groove; 10, sealing strip; 11, connecting pipe; 12, limiting ring; 13, clamping ring; 14, connecting hoop; 15, inner ring. DETAILED DESCRIPTION

[0022] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0023] In the description of the present invention, it should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In addition, in the description of the present invention, "multiple" means two or more, unless otherwise clearly and specifically defined.

[0024] See also Figure 1-5The utility model provides a technical solution: a fiber membrane contactor capable of removing carbon dioxide from flue gas, comprising a separation box 1, the inner wall of the separation box 1 is provided with a fiber membrane structure 2, the inner side of the fiber membrane structure 2 is provided with a discharge cylinder 3, the separation box 1 is a hollow annular cylinder, the inner and outer sides of the separation box 1 are provided with an input pipe 4, the outer side of the separation box 1 is provided with a discharge pipe 5, the bottom of the discharge cylinder 3 is provided with an output disk 6, and the right side of the input pipe 4 is provided with a matching component 7;

[0025] The matching component 7 includes two smoke ducts 701 , the inner side of the smoke duct 701 is movably connected with a mesh frame 702 , the inner side of the left mesh frame 702 is provided with an activated carbon filter block 703 , and the inner side of the right mesh frame 702 is provided with a filter screen 704 .

[0026] In this embodiment: by setting the matching component 7, it is convenient to perform preliminary filtration on the flue gas entering the input pipe 4, so that the impurities and particulate matter therein can be preliminarily filtered to avoid pollution to the internal structure and thus cause excessive consumption. After the flue gas enters the separation box 1 along the input pipe 4, the carbon dioxide will penetrate the fiber membrane faster than the flue gas, and be discharged through the exhaust pipe 5 set at the top and bottom of the inner side of the separation box 1, and can be easily collected. The flue gas that cannot pass through the fiber membrane structure 2 will be discharged into the exhaust tube 3 through the pipeline and output along the output disk 6. Because the fiber membrane structure 2 is annular in design, it can contact a larger area of ​​gas at the same time, and its efficiency is also higher. Because the incoming flue gas is preliminarily filtered, it is not easy to pollute the fiber membrane structure 2, thereby extending the service life of the structure.

[0027] As a technical optimization solution of the present invention, a sealing plug 8 is provided on the inner wall of the separation box 1 , and the inner side of the sealing plug 8 is bonded to the fiber membrane structure 2 .

[0028] In this embodiment, by providing the sealing plug 8, the sealing between the separation box 1 and the fiber membrane structure 2 can be improved to avoid air leakage between the structures or unstable installation.

[0029] As a technical optimization solution of the present invention, a groove 9 is provided on one side opposite to the two smoke ducts 701 , and a sealing strip 10 is movably connected to the inner side of the groove 9 .

[0030] In this embodiment, by providing the groove 9 and cooperating with the sealing strip 10 , the sealing between the smoke ducts 701 can be ensured.

[0031] As a technical optimization solution of the present utility model, a connecting pipe 11 is bolted to the outside of the input pipe 4 , and the right side of the connecting pipe 11 is movably connected to the matching component 7 .

[0032] In this embodiment, by providing a connecting pipe 11 , the air inlets of the two input pipes 4 can be easily connected.

[0033] As a technical optimization solution of the utility model, the right side of the connecting pipe 11 and the left side of the smoke duct 701 are both bolted with a limiting ring 12, and the right side of the outer side of the smoke duct 701 is sleeved with a clamping ring 13.

[0034] In this embodiment, by providing the limiting ring 12, the smoke ducts 701 can be easily fixed to avoid the structure from loosening.

[0035] As a technical optimization solution of the utility model, a connecting hoop 14 is movably connected to the outer side of the smoke duct 701, the front connecting hoop 14 and the rear connecting hoop 14 are rotatably connected by a hinge, and a buckle is provided at the bottom of the connecting hoop 14.

[0036] In this embodiment, by providing the connecting hoop 14, it is convenient to connect the smoke passage 701 and the connecting pipe 11, so that the installation between the structures is more reasonable.

[0037] As a technical optimization solution of the present invention, the inner side of the connecting hoop 14 is movably connected to the limiting ring 12 .

[0038] In this embodiment, by providing the limiting ring 12, the connecting hoop 14 can be conveniently connected to the structure to prevent the structure from being displaced or loosened.

[0039] As a technical optimization solution of the present invention, an inner ring 15 is bolted to the inner side of the smoke duct 701 , and the inner side of the inner ring 15 is snap-fitted to the mesh frame 702 .

[0040] In this embodiment, the inner ring 15 is provided to limit the position of the screen frame 702, thereby preventing the screen frame 702 from being displaced or tilted and thus being unable to be used normally.

[0041] Working principle: First, when in use, the flue gas is directly passed into the connecting pipe 11 through the matching component 7, and the flue gas entering the input pipe 4 is preliminarily filtered, and the impurities and particulate matter therein are filtered through the activated carbon filter block 703 and the filter mesh 704. After the flue gas enters the separation box 1 along the input pipe 4, the carbon dioxide will penetrate the fiber membrane faster than the flue gas, and be discharged through the exhaust pipe 5 arranged at the top and bottom of the inner side of the separation box 1. The flue gas that cannot pass through the fiber membrane structure 2 will be discharged into the exhaust tube 3 through the pipeline and output along the output disk 6.

[0042] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A fiber membrane contactor capable of removing carbon dioxide from flue gas, comprising a separation box (1), characterized in that: The inner wall of the separation box (1) is provided with a fiber membrane structure (2), the inner side of the fiber membrane structure (2) is provided with a discharge cylinder (3), the separation box (1) is a hollow annular cylinder, the inner and outer sides of the separation box (1) are provided with an input pipe (4), the outer side of the separation box (1) is provided with a discharge pipe (5), the bottom of the discharge cylinder (3) is provided with an output disk (6), and the right side of the input pipe (4) is provided with a matching component (7); The matching component (7) comprises two smoke ducts (701), the inner side of each smoke duct (701) is movably connected to a mesh frame (702), the inner side of the left mesh frame (702) is provided with an activated carbon filter block (703), and the inner side of the right mesh frame (702) is provided with a filter screen (704).

2. A fiber membrane contactor capable of removing carbon dioxide from flue gas according to claim 1, characterized in that: The inner wall of the separation box (1) is provided with a sealing plug (8), and the inner side of the sealing plug (8) is bonded to the fiber membrane structure (2).

3. The fiber membrane contactor capable of removing carbon dioxide from flue gas according to claim 1, characterized in that: A groove (9) is provided on one side opposite to the two smoke ducts (701), and a sealing strip (10) is movably connected to the inner side of the groove (9).

4. The fiber membrane contactor capable of removing carbon dioxide from flue gas according to claim 1, characterized in that: A connecting pipe (11) is bolted to the outside of the input pipe (4), and the right side of the connecting pipe (11) is movably connected to the matching component (7).

5. A fiber membrane contactor capable of removing carbon dioxide from flue gas according to claim 4, characterized in that: The right side of the connecting pipe (11) and the left side of the smoke duct (701) are both bolted with a limiting ring (12), and the right side of the outer side of the smoke duct (701) is sleeved with a clamping ring (13).

6. A fiber membrane contactor capable of removing carbon dioxide from flue gas according to claim 5, characterized in that: The outer side of the smoke duct (701) is movably connected with a connecting hoop (14), the front connecting hoop (14) and the rear connecting hoop (14) are rotatably connected via a hinge, and a buckle is provided at the bottom of the connecting hoop (14).

7. A fiber membrane contactor capable of removing carbon dioxide from flue gas according to claim 6, characterized in that: The inner side of the connecting hoop (14) is movably connected to the limiting ring (12).

8. The fiber membrane contactor capable of removing carbon dioxide from flue gas according to claim 1, characterized in that: An inner ring (15) is bolted to the inner side of the smoke passage (701), and the inner side of the inner ring (15) is clamped to the mesh frame (702).

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