Device for removing foreign gas in carbon dioxide

Abstract

The utility model relates to the field of carbon dioxide purification, and discloses a device for removing impurity gas in carbon dioxide, which comprises an impurity removal box, a carrier plate I provided with activated carbon, a carrier plate II provided with a photocatalyst, a carrier plate III provided with a polyimide film, an ultraviolet lamp and a steering assembly. The waste gas is introduced into an impurity removal box, activated carbon adsorbs all smoke dust, water molecules and part of impurity gases such as sulfur dioxide and nitrogen dioxide in the waste gas, and then a photocatalyst is irradiated by an ultraviolet lamp to promote volatile organic compounds, hydrocarbons and other impurities to be converted into carbon dioxide and water; meanwhile, impurities such as nitrogen dioxide and sulfur dioxide can be converted into nitrate, sulfate and the like, finally, the carbon dioxide is discharged out of the impurity removal box to be collected through the selection effect of the polyimide film on the carbon dioxide, and pure carbon dioxide is obtained. The device has the advantages and effects that the illumination intensity of the photocatalyst is uniform, the impurity removal efficiency is high, and the process is simple.

Description

TECHNICAL FIELD

[0001] The utility model relates to carbon dioxide purification technical field, especially in removing the device of impurity gas in carbon dioxide. BACKGROUND

[0002] Industrial waste gas contains a large amount of carbon dioxide, which can be recycled and reused, but also contains a large amount of smoke dust particles, moisture, nitride, sulfide, benzene, alcohol and hydrocarbon impurities, and needs to be treated to obtain pure carbon dioxide gas.

[0003] The utility model discloses a kind of devices for removing impurity gas in carbon dioxide, the device for removing impurity gas in carbon dioxide includes impurity removal box, ultraviolet lamp, photocatalytic substrate, lifting assembly and rectifying column, impurity removal box is circulated with the carbon dioxide gas to be removed impurity, photocatalytic substrate is installed in impurity removal box, rectifying column is circulated with impurity removal box, ultraviolet lamp is set in impurity removal box by lifting assembly and can be lifted, ultraviolet lamp irradiates photocatalytic substrate, so that impurity gas catalytically generates oxygen, nitrogen, hydrogen etc., again enters rectifying column and carries out next step removal, to obtain the carbon dioxide gas with higher purity.But in prior art, when impurity removal device removes the carbon dioxide gas to be removed impurity, it also needs to remove smoke dust particles and water molecules in gas in excess process, to avoid affecting the efficiency of photocatalytic reaction, needs to process impurity in several processes, and the impurity removal process is complex, reduces impurity removal efficiency;And ultraviolet lamp is fixedly irradiated at fixed angle during photocatalytic reaction, the incidence angle of ultraviolet light on the surface of photocatalyst does not change, and it is easy to cause local light to be too strong or too weak phenomenon to reduce impurity removal efficiency and the utilization of photocatalyst. UTILITY MODEL CONTENTS

[0004] The utility model aims at providing a kind of device for removing impurity gas in carbon dioxide, with the effect of solving above-mentioned technical problems, ultraviolet lamp can rotate left and right, photocatalyst is evenly illuminated, improve impurity removal efficiency, and impurity removal process is simple.

[0005] The above technical purpose of the utility model is realized by the following technical scheme: a kind of device for removing impurity gas in carbon dioxide, including impurity removal box, impurity removal box is sequentially provided with carrier plate one, carrier plate two, carrier plate three from top to bottom, active carbon is provided on carrier plate one, fixed plate is provided below carrier plate two, ultraviolet lamp is provided on fixed plate, photocatalyst is evenly laid on carrier plate two, ultraviolet lamp is opposite to photocatalyst, polyimide film is provided on carrier plate three, further including steering assembly, steering assembly is used to drive ultraviolet lamp to reciprocate steering left and right.

[0006] By adopting the above technical scheme, the industrial waste gas is introduced into the impurity removal box, the carbon dioxide gas moves downward, first passes through the carrier plate one, the activated carbon on the carrier plate one can adsorb all smoke dust, and water molecules, part of sulfur dioxide, nitrogen dioxide and other impurity gases, then passes through the carrier plate two and is irradiated by the ultraviolet lamp to promote the conversion of volatile organic compounds, hydrocarbons and other impurities into carbon dioxide and water, and at the same time, the impurities such as nitrogen dioxide and sulfur dioxide can be converted into nitrate, sulfate and the like, the turning assembly drives the ultraviolet lamp to slowly sway left and right in the impurity removal box, the incidence angle of the ultraviolet light on the surface of the photocatalyst is changed constantly, the photocatalyst can be uniformly irradiated, the utilization efficiency of the photocatalyst is high, finally, the selective action of the polyimide film on the carbon dioxide is utilized, the carbon dioxide is discharged from the impurity removal box for collection, and relatively pure carbon dioxide is obtained, and the impurity removal process is simple and the impurity removal efficiency is high.

[0007] The further setting of the utility model is that: the turning assembly includes the U-shaped frame fixed below the fixed plate, the U-shaped frame is rotationally connected with the rotating shaft in the middle, the horizontal rod is fixedly connected with the opening below, the ultraviolet lamp top is equipped with the fixed ring, the fixed ring rotationally covers the horizontal rod, the rotating shaft is fixedly equipped with the V-shaped connecting piece below, the V-shaped connecting piece is hingedly connected with the U-shaped rotating frame at the other end, the fixed ring is hingedly connected in the U-shaped rotating frame, the fixed plate is equipped with the micro motor, and the micro motor is used for driving the rotating shaft to rotate.

[0008] By adopting the above technical scheme, the micro motor drives the rotating shaft to rotate, the rotating shaft drives the V-shaped connecting piece to rotate when rotating, the V-shaped connecting piece drives the U-shaped rotating frame to rotate around the point connected with the fixed ring, thereby driving the fixed ring to sway slowly left and right reciprocatingly, the incidence angle of the ultraviolet light on the surface of the photocatalyst is changed constantly, the light uniformity of the photocatalyst is improved, the utilization rate of the photocatalyst is enhanced, and the consistency and stability of the photocatalytic reaction are improved, which is beneficial to improving the removal effect of the impurity gas.

[0009] The further setting of the utility model is that: the horizontal rod is equipped with the groove, and the fixed ring is turned to be connected in the groove.

[0010] By adopting the above technical scheme, the fixed ring is rotationally connected in the groove, the left and right limitation of the fixed ring is realized, the fixed ring can only rotate relative to the horizontal rod and cannot move left and right, and the ultraviolet lamp is always located outside the middle of the impurity removal box.

[0011] The further setting of the utility model is that: the included angle of the V-shaped connecting piece is 120 DEG.

[0012] The further setting of the utility model is that: one side of the impurity removal box is equipped with the through groove one, the carrier plate one is slidably connected with the impurity removal box through the through groove one, one side of the carrier plate one is fixedly equipped with the sealing plate one, the sealing plate one is matched with the through groove one in size, and the outer side of the sealing plate one is equipped with the handle.

[0013] The present invention is further configured such that: a through groove 2 is provided on one side of the impurity removal box, a carrier plate 2 is slidably connected to the impurity removal box through the through groove 2, a sealing plate 2 is fixedly provided on one side of the carrier plate 2, the size of the sealing plate 2 matches the through groove 2, and a handle is provided on the outer side of the sealing plate 2.

[0014] The present invention is further configured such that: a through groove 3 is provided on one side of the impurity removal box, a carrier plate 3 is slidably connected to the impurity removal box through the through groove 3, a sealing plate 3 is fixedly provided on one side of the carrier plate 3, the size of the sealing plate 3 matches the through groove 3, and a handle is provided on the outer side of the sealing plate 3.

[0015] By adopting the above technical solution, during the reaction, carrier plate one, carrier plate two, and carrier plate three slide into the impurity removal box through through channels one, two, and three, respectively, and are supported inside the impurity removal box. At this time, sealing plate one, sealing plate two, and sealing plate three respectively seal through channels one, two, and three, ensuring that the impurity removal box is in a sealed state and preventing gas leakage. When it is necessary to replace or clean the activated carbon, photocatalyst, or polyimide membrane, simply hold the handle and pull out the corresponding carrier plate for replacement or cleaning. The operation is simple and convenient.

[0016] A further feature of this invention is that the photocatalyst is TiO2.

[0017] A further feature of this invention is that the top of the impurity removal box has an air inlet and the bottom has an air outlet.

[0018] The beneficial effects of this utility model are:

[0019] 1. By setting up a triple-carrier plate inside the impurity removal box, impurity gases are separated from carbon dioxide. First, the activated carbon on the first carrier plate can adsorb all the smoke dust, water molecules, and some impurity gases such as sulfur dioxide and nitrogen dioxide. Then, the photocatalyst on the second carrier plate is irradiated by ultraviolet light, which promotes the conversion of volatile organic compounds, hydrocarbons and other impurities into carbon dioxide and water. At the same time, it can also convert impurities such as nitrogen dioxide and sulfur dioxide into nitrates and sulfates. Finally, the carbon dioxide is discharged from the impurity removal box and collected by the polyimide membrane, resulting in relatively pure carbon dioxide. The impurity removal process is simple and has high impurity removal efficiency.

[0020] 2. By setting a steering component, the ultraviolet lamp is driven to slowly sway left and right inside the impurity removal box. The micro motor drives the rotating shaft to rotate, and the rotating shaft drives the V-shaped connector to rotate. The rotation of the V-shaped connector drives the U-shaped rotating frame to rotate around the point connected to the fixed ring, thereby causing the fixed ring to slowly sway left and right. This makes the incident angle of ultraviolet light on the photocatalyst surface constantly change, improves the uniformity of light received by the photocatalyst, enhances the utilization rate of the photocatalyst, and thus improves the consistency and stability of the photocatalytic reaction, which is beneficial to improving the removal effect of impurity gases. Attached Figure Description

[0021] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed in the embodiment description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present application, and all other drawings obtained by those of ordinary skill in the art based on the drawings without creative labor fall within the scope of the present application.

[0022] Figure 1 is a schematic diagram of the overall mechanism of the present application.

[0023] Figure 2 is a schematic diagram of the internal structure of the impurity removal box of the present application.

[0024] Figure 3 is Figure 2 is a partial enlarged view of A-A in FIG.

[0025] In the figure, 1 is an impurity removal box; 11 is an air inlet; 12 is an air outlet; 2 is a carrier plate one; 21 is a through groove one; 22 is a sealing plate one; 3 is a carrier plate two; 31 is a through groove two; 32 is a sealing plate two; 4 is a carrier plate three; 41 is a through groove three; 42 is a sealing plate three; 5 is a fixed plate; 6 is an ultraviolet lamp; 7 is a steering assembly; 71 is a U-shaped frame; 72 is a rotating shaft; 73 is a crossbar; 74 is a fixing ring; 75 is a V-shaped connecting piece; 76 is a U-shaped rotating frame; 77 is a micro motor. DETAILED DESCRIPTION

[0026] The technical solutions of the present application will be described clearly and completely in combination with specific embodiments. Obviously, the described embodiments are only some embodiments of the present application, not all embodiments. Based on the embodiments of the present application, all other embodiments obtained by those of ordinary skill in the art without creative labor fall within the scope of the present application.

[0027] Embodiment, a device for removing impurity gas in carbon dioxide, as shown in Figures 1-3As shown, including the top opening with air inlet 11, bottom with air outlet 12 of the box 1, the box 1 from top to bottom is provided with a carrier plate one 2, carrier plate two 3, carrier plate three 4, carrier plate one 2 is provided with activated carbon, carrier plate one 2 below is provided with fixed plate 5, fixed plate 5 is provided with ultraviolet lamp 6, carrier plate two 3 is uniformly provided with photocatalyst, ultraviolet lamp 6 and photocatalyst opposite, carrier plate three 4 is provided with polyimide film, also includes steering assembly 7, steering assembly 7 includes the U type frame 71 fixed below the fixed plate 5, the middle part of the U type frame 71 is rotatably connected with the rotating shaft 72, the lower opening is fixedly connected with the horizontal rod 73, the top of the ultraviolet lamp 6 is provided with the fixed ring 74, the fixed ring 74 is rotatably sleeved in the groove on the horizontal rod 73, the lower part of the rotating shaft 72 is fixedly provided with the V type connecting piece 75, the other end of the V type connecting piece 75 is hingedly connected with the U type rotating frame 76, the fixed ring 74 is hingedly connected in the U type rotating frame 76, the fixed plate 5 is provided with micro motor 77, micro motor 77 is used to drive the rotating shaft 72 to rotate, wherein, the included angle of the V type connecting piece 75 is 120 DEG, the photocatalyst is TiO2.

[0028] The working principle is: first start micro motor 77, micro motor 77 drives rotating shaft 72 to rotate, rotating shaft 72 drives V type connecting piece 75 to rotate when rotating, V type connecting piece 75 drives U type rotating frame 76 to rotate around the point connected with fixed ring 74, so as to drive fixed ring 74, ultraviolet lamp 6 to reciprocate slowly left and right, so that the incident angle of ultraviolet light on the surface of photocatalyst changes constantly, then the exhaust gas enters the box 1 from the air inlet 11, first, the activated carbon on the carrier plate one 2 adsorbs all the smoke and water molecules and part of the sulfur dioxide, nitrogen dioxide and other impurity gases in the exhaust gas, then the photocatalyst on the carrier plate two 3 is irradiated by ultraviolet lamp 6 to promote volatile organic compounds, hydrocarbon and other impurities to be converted into carbon dioxide and water, at the same time, nitrogen dioxide, sulfur dioxide and other impurities can also be converted into nitrate, sulfate and other substances, finally, the selective action of polyimide film on carbon dioxide is utilized, so that carbon dioxide is discharged from the box 1 to collect, and relatively pure carbon dioxide is obtained, the impurity removal process is simple and the impurity removal efficiency is high.

[0029] Specifically, one side of the box 1 is provided with a through slot one 21, the carrier plate one 2 is slidably connected to the box 1 through the through slot one 21, one side of the carrier plate one 2 is fixedly provided with a sealing plate one 22, the sealing plate one 22 is matched with the through slot one 21 in size, and the outer side of the sealing plate one 22 is provided with a handle.

[0030] Specifically, one side of the box 1 is provided with a through slot two 31, the carrier plate two 3 is slidably connected to the box 1 through the through slot two 31, one side of the carrier plate two 3 is fixedly provided with a sealing plate two 32, the sealing plate two 32 is matched with the through slot two 31 in size, and the outer side of the sealing plate two 32 is provided with a handle.

[0031] Specifically, the one side of the impurity box 1 is provided with a through slot three 41, the carrier plate three 4 is slidably connected to the impurity box 1 through the through slot three 41, and the one side of the carrier plate three 4 is fixedly provided with a sealing plate three 42 which is matched with the through slot three 41 in size, and the outer side of the sealing plate three 42 is provided with a handle.

Claims

1. An apparatus for removing impurity gases from carbon dioxide, characterized by: Including the impurity removal box (1), the impurity removal box (1) is sequentially provided with the carrier plate one (2), the carrier plate two (3), the carrier plate three (4) from top to bottom, the carrier plate one (2) is provided with activated carbon, the carrier plate one (2) below is provided with the fixed plate (5), the fixed plate (5) is provided with the ultraviolet lamp (6), the carrier plate two (3) is uniformly provided with photocatalyst, the ultraviolet lamp (6) is opposite to the photocatalyst, the carrier plate three (4) is provided with polyimide film, further including the steering assembly (7), the steering assembly (7) is used to drive the ultraviolet lamp (6) left and right reciprocating steering.

2. The device for removing impurity gases from carbon dioxide according to claim 1, characterized in that: The steering assembly (7) includes the U-shaped frame (71) fixed below the fixed plate (5), the U-shaped frame (71) is rotatably connected with the rotating shaft (72) in the middle, and the horizontal rod (73) is fixedly connected with the opening below, the ultraviolet lamp (6) is provided with the fixed ring (74) on the top, the fixed ring (74) is rotatably sleeved on the horizontal rod (73), the V-shaped connecting piece (75) is fixed below the rotating shaft (72), one end of the V-shaped connecting piece (75) is hingedly connected with the U-shaped rotating frame (76), and the fixed ring (74) is hingedly connected in the U-shaped rotating frame (76), the fixed plate (5) is provided with the micro motor (77), and the micro motor (77) is used to drive the rotating shaft (72) to rotate.

3. The device for removing impurity gases from carbon dioxide according to claim 2, characterized in that: The horizontal rod (73) is provided with a groove, and the fixed ring (74) is connected in the groove.

4. The device for removing impurity gases from carbon dioxide according to claim 2, characterized by: The included angle of the V-shaped connecting piece (75) is 120°.

5. The device for removing impurity gases from carbon dioxide according to claim 1, characterized by: One side of the impurity removal box (1) is provided with a through groove one (21), the carrier plate one (2) is slidably connected with the impurity removal box (1) through the through groove one (21), one side of the carrier plate one (2) is fixedly provided with a sealing plate one (22), the sealing plate one (22) is matched with the through groove one (21) in size, and the sealing plate one (22) is provided with a handle outside.

6. The device for removing impurity gases from carbon dioxide according to claim 1, characterized by: One side of the impurity removal box (1) is provided with a through groove two (31), the carrier plate two (3) is slidably connected with the impurity removal box (1) through the through groove two (31), one side of the carrier plate two (3) is fixedly provided with a sealing plate two (32), the sealing plate two (32) is matched with the through groove two (31) in size, and the sealing plate two (32) is provided with a handle outside.

7. The device for removing impurity gases from carbon dioxide according to claim 1, characterized by: One side of the impurity removal box (1) is provided with a through groove three (41), the carrier plate three (4) is slidably connected with the impurity removal box (1) through the through groove three (41), one side of the carrier plate three (4) is fixedly provided with a sealing plate three (42), the sealing plate three (42) is matched with the through groove three (41) in size, and the sealing plate three (42) is provided with a handle outside.

8. The device for removing impurity gases from carbon dioxide according to claim 1, characterized by: The photocatalyst is TiO2.

9. The device for removing impurity gases from carbon dioxide according to claim 1, characterized by: The impurity removal box (1) is provided with an air inlet (11) on the top and an air outlet (12) below.

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