Low-concentration carbon dioxide emission reduction device

Abstract

The low-concentration carbon dioxide emission reduction device comprises a purification bin, a gas inlet pipe is arranged in the purification bin, a liquid outlet is formed in the top of one side of the purification bin, a gas flowing pipe is arranged in the middle of the side, away from the liquid outlet, of the purification bin, and a liquid storage tank is arranged at the bottom of the side, away from the liquid outlet, of the purification bin; through cooperation of the purification bin and the gas inlet pipe, residual sulfur compounds in gas can be absorbed after the coal chemical industry discharges the gas, the sulfur compounds are prevented from being discharged to the outside, and then through cooperation of a cooling pipe, a gas flowing pipe, a second pump machine, a liquid storage tank and a circulating pipe, in the gas circulation process, the sulfur compounds are prevented from being discharged to the outside. The circulating cooling liquid can be used for exchanging heat with gas, the situation that the service life of the device is shortened due to the fact that the device is affected by continuous high temperature is avoided, and then it is guaranteed that the device can operate for a long time.

Description

Technical Field

[0001] The present invention relates to the technical field of carbon dioxide emission reduction, and in particular to a low-concentration carbon dioxide emission reduction device. Background Art

[0002] Carbon dioxide is a greenhouse gas. If the carbon dioxide content in the atmosphere is too high, it will cause the temperature to rise, and then a large amount of carbon dioxide will be produced in the process of preparing gas from coal chemical industry. In order to reduce emissions, it needs to be processed during the emission process.

[0003] The existing authorization announcement number is "CN216815070U". An iron smelting system for reducing carbon dioxide emissions includes a smelting furnace, a washing tower, and a desorption tower. The smelting furnace includes an air outlet and an air outlet, and also includes a first heater. The smelting furnace is provided with an air inlet, and the air outlet of the smelting furnace is connected to the gas inlet of the washing tower. The upper part of the washing tower is provided with a liquid inlet for introducing an organic liquid that selectively absorbs carbon dioxide. The gas outlet of the washing tower is connected to the air inlet of the smelting furnace through the first heater, and the liquid outlet of the washing tower is connected to the liquid inlet of the desorption tower. The desorption tower is provided with a gas outlet for discharging carbon dioxide. The iron smelting system for reducing carbon dioxide emissions provided by the present invention has small equipment investment, low energy consumption, and high industrial application benefits.

[0004] However, during the process of carbon dioxide absorption, these absorption liquids will gradually become diluted, resulting in a large amount of carbon dioxide being discharged, which will reduce the absorption rate of carbon dioxide and fail to achieve a good emission reduction effect. Summary of the invention

[0005] The object of the present invention is to provide a low-concentration carbon dioxide emission reduction device to solve the existing problems raised in the above background technology.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a low-concentration carbon dioxide emission reduction device, comprising a purification chamber, an air inlet pipe is provided inside the purification chamber, a liquid discharge port is provided at the top of one side of the purification chamber, a gas flow pipe is provided in the middle of the side of the purification chamber away from the liquid discharge port, a liquid storage tank is provided at the bottom of the purification chamber away from the liquid discharge port, a circulation pipe is provided inside the liquid storage tank, a second pump is provided inside the liquid storage tank, a cooling pipe is provided at the output end of the second pump, the cooling pipe extends to the inside of the gas flow pipe, a carbon dioxide absorption component is provided at the bottom of the gas flow pipe, and a carbon dioxide recovery component is provided on one side of the carbon dioxide absorption component.

[0007] Preferably, the carbon dioxide absorption component includes a carbon dioxide circulation pipe, a through pipe, a first solenoid valve, a carbon dioxide purification tower, a through hole, a heating mechanism, an electric heating pipe, a second solenoid valve and an exhaust port, through pipes are symmetrically arranged on both sides of the bottom of the gas flow pipe, a first solenoid valve is arranged inside the through pipe, a carbon dioxide purification tower is arranged at the bottom of the through pipe, a carbon dioxide circulation pipe is arranged inside the carbon dioxide purification tower, a through hole is arranged outside the carbon dioxide circulation pipe, a heating mechanism is arranged inside the carbon dioxide purification tower, a plurality of groups of electric heating pipes are evenly arranged on the top of the heating mechanism, a second solenoid valve is arranged on one side of the through hole, an exhaust port is arranged on one side of the second solenoid valve, potassium carbonate is arranged inside the carbon dioxide purification tower, and during the discharge of carbon dioxide, the gas flow time can be extended so that the potassium carbonate inside the carbon dioxide purification tower can fully absorb carbon dioxide, thereby avoiding the situation that carbon dioxide flows out of the outside, and after absorbing carbon dioxide for a certain period of time, another carbon dioxide purification tower can be switched to absorb carbon dioxide again, and the carbon dioxide purification tower that absorbs a large amount of carbon dioxide will be closed, and the potassium carbonate will be heated at high temperature, so that the potassium carbonate that absorbs carbon dioxide and changes into potassium bicarbonate will be decomposed and reduced again, ensuring that the potassium carbonate can be reused.

[0008] Preferably, the carbon dioxide recovery component includes a first connecting pipe, a storage bin, a carbon dioxide compression mechanism, a first pump, a dry ice making mechanism and a second connecting pipe, the first connecting pipe is located on one side of the carbon dioxide purification tower, a third solenoid valve is provided inside the first connecting pipe, a storage bin is provided on one side of the first connecting pipe, a carbon dioxide compression mechanism is provided inside the storage bin, a second connecting pipe is provided at the bottom of one side of the storage bin, a dry ice making mechanism is provided at the bottom of one side of the second connecting pipe, a first pump is provided at the bottom of one side of the storage bin, the circulation pipe is connected to one end of the first pump, and the other end of the circulation pipe extends to the interior of the storage bin, can be liquefied and then made into dry ice for repeated use, and the liquefied carbon dioxide can also be circulated through the first pump and the circulation pipe to cool the coolant inside the liquid storage tank.

[0009] Preferably, a liquid inlet pipe is provided at the top of one side of the purification chamber, a liquid discharge port is provided at the bottom of one side of the purification chamber, and sealing plugs are provided inside the liquid discharge port and the liquid inlet pipe, which is convenient for replenishing the purification liquid and draining the liquid.

[0010] Preferably, an installation bin is provided on the outside of the second pump, and the installation bin is interconnected with the liquid storage tank. The second pump is located between the water inlet and outlet ends of the cooling pipe, and the second pump is installed to ensure stability during the installation of the second pump.

[0011] Preferably, a cover plate is provided on the top of one end of the carbon dioxide purification tower, and a plurality of groups of connecting bolts are provided at the four corners of one end of the cover plate, so as to facilitate opening the interior of the carbon dioxide purification tower and maintaining the interior of the carbon dioxide purification tower.

[0012] Compared with the prior art, the beneficial effects of the present invention are: the low-concentration carbon dioxide emission reduction device;

[0013] 1. Through the cooperation of the purification chamber and the air inlet pipe, after the coal chemical industry discharges the gas, the residual sulfur compounds in the gas can be absorbed to prevent the sulfur compounds from being discharged to the outside. Then, through the cooperation of the cooling pipe, the gas flow pipe, the second pump, the liquid storage tank and the circulation pipe, during the gas circulation process, the circulating coolant can be used to exchange heat with the gas to avoid the continuous high temperature affecting the device and reducing the service life of the device, thereby ensuring that the device can operate for a long time;

[0014] 2. Through the cooperation of the carbon dioxide circulation pipe, the through pipe, the first solenoid valve, the through hole, the heating mechanism, the electric heating pipe and the second solenoid valve, the gas flow time can be extended during the carbon dioxide discharge process, so that the potassium carbonate inside the carbon dioxide purification tower can fully absorb the carbon dioxide, thereby preventing the carbon dioxide from flowing out. After absorbing carbon dioxide for a certain period of time, another carbon dioxide purification tower can be switched to absorb carbon dioxide again, and the carbon dioxide purification tower that absorbs a large amount of carbon dioxide will be closed, and the potassium carbonate will be heated at a high temperature, so that the potassium carbonate that absorbs carbon dioxide and changes into potassium bicarbonate will be decomposed and restored again, ensuring that the potassium carbonate can be reused, and the generated carbon dioxide can be liquefied and then made into dry ice for repeated use through the cooperation of the carbon dioxide compression mechanism, the first pump, the dry ice making mechanism and the second connecting pipe, and the liquefied carbon dioxide can also be circulated through the first pump and the circulation pipe to cool the coolant inside the liquid storage tank. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 A perspective view of the present invention;

[0016] Figure 2 It is a front cross-sectional view of the present invention;

[0017] Figure 3 It is a front view of the present invention;

[0018] Figure 4 It is a top view of the circulation pipe of the present invention.

[0019] In the figure: 1. purification chamber; 2. air inlet pipe; 3. cooling pipe; 4. gas flow pipe; 5. carbon dioxide absorption component; 51. carbon dioxide circulation pipe; 52. through pipe; 53. first solenoid valve; 54. carbon dioxide purification tower; 55. through hole; 56. heating mechanism; 57. electric heating pipe; 58. second solenoid valve; 59. exhaust port; 510. potassium carbonate; 6. carbon dioxide recovery component; 61. first connecting pipe; 62. storage chamber; 63. carbon dioxide compression mechanism; 64. first pump; 65. dry ice making mechanism; 66. second connecting pipe; 67. third solenoid valve; 7. liquid inlet pipe; 8. liquid discharge port; 9. second pump; 10. liquid storage tank; 11. circulation pipe. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0021] See also Figure 1-Figure 4 , the embodiment provided by the present invention: a low-concentration carbon dioxide emission reduction device, including a purification chamber 1, an air inlet pipe 2 is provided inside the purification chamber 1, a liquid discharge port 8 is provided at the top of one side of the purification chamber 1, a liquid inlet pipe 7 is provided at the top of one side of the purification chamber 1, a liquid discharge port 8 is provided at the bottom of one side of the purification chamber 1, and a sealing plug is provided inside the liquid discharge port 8 and the liquid inlet pipe 7, which is convenient for replenishing the purification liquid and draining the liquid, a gas flow pipe 4 is provided in the middle of the side of the purification chamber 1 away from the liquid discharge port 8, a liquid storage tank 10 is provided at the bottom of the side of the purification chamber 1 away from the liquid discharge port 8, a circulation pipe 11 is provided inside the liquid storage tank 10, a second pump 9 is provided inside the liquid storage tank 10, a cooling pipe 3 is provided at the output end of the second pump 9, an installation chamber is provided outside the second pump 9, and the installation chamber and the liquid storage tank 10 are connected to each other, the second pump 9 is located between the water inlet end and the water outlet end of the cooling pipe 3, the second pump 9 is installed to ensure the stability of the second pump 9 during installation, the cooling pipe 3 extends to the inside of the gas flow pipe 4, and a carbon dioxide absorption component 5 is provided at the bottom of the gas flow pipe 4;

[0022] The carbon dioxide absorption assembly 5 includes a carbon dioxide circulation pipe 51, a through pipe 52, a first solenoid valve 53, a carbon dioxide purification tower 54, a through hole 55, a heating mechanism 56, an electric heating pipe 57, a second solenoid valve 58 and an exhaust port 59. Through pipes 52 are symmetrically arranged on both sides of the bottom of the gas flow pipe 4. The first solenoid valve 53 is arranged inside the through pipe 52. The carbon dioxide purification tower 54 is arranged at the bottom of the through pipe 52. A cover plate is arranged on the top of one end of the carbon dioxide purification tower 54, and a plurality of groups of connecting bolts are arranged at the four corners of one end of the cover plate, so as to facilitate opening the interior of the carbon dioxide purification tower 54 and maintaining the interior of the carbon dioxide purification tower 54. The carbon dioxide circulation pipe 51 is arranged inside the carbon dioxide purification tower 54, and a through hole 55 is arranged on the outer side of the carbon dioxide circulation pipe 51. The heating mechanism 56 is arranged inside the carbon dioxide purification tower 54.

[0023] A plurality of groups of electric heating tubes 57 are evenly arranged on the top of the heating mechanism 56, a second solenoid valve 58 is arranged on one side of the through hole 55, an exhaust port 59 is arranged on one side of the second solenoid valve 58, and potassium carbonate 510 is arranged inside the carbon dioxide purification tower 54. During the discharge of carbon dioxide, the gas flow time can be extended so that the potassium carbonate 510 inside the carbon dioxide purification tower 54 can fully absorb carbon dioxide, thereby preventing the carbon dioxide from flowing out of the outside, and after absorbing carbon dioxide for a certain period of time, another carbon dioxide purification tower 54 can be switched to absorb carbon dioxide again, and the carbon dioxide purification tower 54 that absorbs a large amount of carbon dioxide will be closed, and the potassium carbonate 510 will be heated at a high temperature, so that the potassium carbonate 510 that absorbs carbon dioxide and changes into potassium bicarbonate will be decomposed and reduced again, ensuring that the potassium carbonate 510 can be reused. A carbon dioxide recovery component 6 is arranged on one side of the carbon dioxide absorption component 5;

[0024] The carbon dioxide recovery component 6 includes a first connecting pipe 61, a storage bin 62, a carbon dioxide compression mechanism 63, a first pump 64, a dry ice making mechanism 65 and a second connecting pipe 66. The first connecting pipe 61 is located on one side of the carbon dioxide purification tower 54. A third solenoid valve 67 is provided inside the first connecting pipe 61. A storage bin 62 is provided on one side of the first connecting pipe 61. The carbon dioxide compression mechanism 63 is provided inside the storage bin 62. A second connecting pipe 66 is provided at the bottom of one side of the storage bin 62. A dry ice making mechanism 65 is provided at the bottom of one side of the second connecting pipe 66. A first pump 64 is provided at the bottom of one side of the storage bin 62. A circulation pipe 11 is connected to one end of the first pump 64, and the other end of the circulation pipe 11 extends to the interior of the storage bin 62. It can be liquefied and then made into dry ice for repeated use. The liquefied carbon dioxide can also be circulated through the first pump 64 and the circulation pipe 11 to cool the coolant inside the liquid storage tank 10.

[0025] Working principle: In the process of industrial ammonia production and other coal industries, a large amount of mixed gases such as carbon dioxide will be generated, and then these gases will enter the purification chamber 1 through the air intake pipe 2, and then the purification liquid inside the air intake pipe 2 will absorb the sulfide in the gas, and then purify the gas to a certain extent, and then these gases will enter the gas flow pipe 4, and at the same time, the second pump 9 will start to extract the coolant in the liquid storage tank 10, and these coolants will circulate along the cooling pipe 3, and absorb and exchange heat with the gas during the circulation process, thereby reducing the temperature of the gas;

[0026] Then the gas enters the interior of the carbon dioxide circulation pipe 51 along the through pipe 52, flows along the carbon dioxide circulation pipe 51, and contacts the potassium carbonate 510 outside through the through hole 55. The potassium carbonate 510 absorbs the carbon dioxide and water vapor in the gas and turns into potassium bicarbonate. Then the remaining gas is discharged from the exhaust port 59.

[0027] After a carbon dioxide purification tower 54 absorbs carbon dioxide for a period of time, the first solenoid valve 53 and the second solenoid valve 58 there are closed, while the first solenoid valve 53 and the second solenoid valve 58 inside the other carbon dioxide purification tower 54 are opened to absorb carbon dioxide again. At this time, the closed carbon dioxide purification tower 54 has its internal heating mechanism 56 and electric heating tube 57 opened, thereby heating the potassium carbonate 510 inside the carbon dioxide purification tower 54 at high temperature, heating the potassium bicarbonate to 200°~220°, and then the potassium bicarbonate is reduced to potassium carbonate 510 and carbon dioxide for reuse. At this time, the third solenoid valve 67 is opened again, and the carbon dioxide compression mechanism 63 cools the carbon dioxide and liquefies it into the storage bin 62 for storage. At the same time, the first pump 64 extracts the liquefied carbon dioxide inside the storage bin 62 into the circulation pipe 11 for circulation, and cools the coolant inside the liquid storage tank 10. At the same time, the dry ice making mechanism 65 also extracts the carbon dioxide inside the storage bin 62 to make dry ice for use.

[0028] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

[0029] In the description of the present invention, unless otherwise specified, "plurality" means two or more than two; the orientations or positional relationships indicated by the terms "upper", "lower", "left", "right", "inner", "outer", "front end", "rear end", "head", "tail", etc. are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing 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 cannot be understood as limiting the present invention. In addition, the terms "first", "second", "third", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0030] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "connected" and "connection" should be understood in a broad sense, for example, it can be a fixed connection or a detachable connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

Claims

1. A low-concentration carbon dioxide emission reduction device, comprising a purification chamber (1), characterized in that: An air inlet pipe (2) is provided inside the purification chamber (1), a liquid discharge port (8) is provided at the top of one side of the purification chamber (1), a gas flow pipe (4) is provided in the middle of the side of the purification chamber (1) away from the liquid discharge port (8), a liquid storage tank (10) is provided at the bottom of the side of the purification chamber (1) away from the liquid discharge port (8), a circulation pipe (11) is provided inside the liquid storage tank (10), a second pump (9) is provided inside the liquid storage tank (10), a cooling pipe (3) is provided at the output end of the second pump (9), the cooling pipe (3) extends to the inside of the gas flow pipe (4), a carbon dioxide absorption component (5) is provided at the bottom of the gas flow pipe (4), and a carbon dioxide recovery component (6) is provided on one side of the carbon dioxide absorption component (5).

2. A low-concentration carbon dioxide emission reduction device according to claim 1, characterized in that: The carbon dioxide absorption component (5) comprises a carbon dioxide circulation pipe (51), a through pipe (52), a first electromagnetic valve (53), a carbon dioxide purification tower (54), a through hole (55), a heating mechanism (56), an electric heating pipe (57), a second electromagnetic valve (58), an exhaust port (59) and potassium carbonate (510). Through pipes (52) are symmetrically arranged on both sides of the bottom of the gas flow pipe (4). The first electromagnetic valve (53) is arranged inside the through pipe (52). The carbon dioxide purification tower (54) is arranged at the bottom of the through pipe (52). A carbon dioxide circulation pipe (51) is provided inside the carbon dioxide purification tower (54), a through hole (55) is provided on the outside of the carbon dioxide circulation pipe (51), a heating mechanism (56) is provided inside the carbon dioxide purification tower (54), a plurality of groups of electric heating pipes (57) are evenly provided on the top of the heating mechanism (56), a second solenoid valve (58) is provided on one side of the through hole (55), an exhaust port (59) is provided on one side of the second solenoid valve (58), and potassium carbonate (510) is provided inside the carbon dioxide purification tower (54).

3. A low-concentration carbon dioxide emission reduction device according to claim 2, characterized in that: The carbon dioxide recovery assembly (6) comprises a first connecting pipe (61), a storage bin (62), a carbon dioxide compression mechanism (63), a first pump (64), a dry ice manufacturing mechanism (65), a second connecting pipe (66) and a third solenoid valve (67). The first connecting pipe (61) is located at one side of the carbon dioxide purification tower (54). The third solenoid valve (67) is arranged inside the first connecting pipe (61). A storage bin (62) is arranged at one side of the first connecting pipe (61). The carbon dioxide compression mechanism (63) is arranged inside the storage bin (62). A second connecting pipe (66) is arranged at the bottom of one side of the storage bin (62). The dry ice manufacturing mechanism (65) is arranged at the bottom of one side of the second connecting pipe (66). The first pump (64) is arranged at the bottom of one side of the storage bin (62). The circulation pipe (11) is connected to one end of the first pump (64), and the other end of the circulation pipe (11) extends to the inside of the storage bin (62).

4. A low-concentration carbon dioxide emission reduction device according to claim 1, characterized in that: A liquid inlet pipe (7) is provided at the top of one side of the purification chamber (1), a liquid discharge port (8) is provided at the bottom of one side of the purification chamber (1), and sealing plugs are provided inside the liquid discharge port (8) and the liquid inlet pipe (7).

5. A low-concentration carbon dioxide emission reduction device according to claim 1, characterized in that: An installation compartment is provided on the outside of the second pump (9), and the installation compartment is connected to the liquid storage tank (10). The second pump (9) is located between the water inlet and the water outlet of the cooling pipe (3).

6. A low-concentration carbon dioxide emission reduction device according to claim 2, characterized in that: A cover plate is provided at the top of one end of the carbon dioxide purification tower (54), and a plurality of groups of connecting bolts are respectively provided at the four corners of the one end of the cover plate.

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