Reaction equipment and method for reducing emission of CO in flue gas

Abstract

The invention relates to the technical field of air pollution treatment, in particular to reaction equipment for reducing CO emission in smoke, which comprises a chassis, a chimney and a water tank, the chimney is transversely mounted at the left end of the upper surface of the chassis, the water tank is transversely mounted in an inner cavity of the chimney, a gap is reserved between the water tank and the chimney, and the smoke flows from left to right through the chimney. The water tank is heated by waste heat of the flue gas, the reaction equipment for reducing the emission of CO in the flue gas further comprises a purification mechanism, a filtering mechanism, a forming mechanism and an energy conversion mechanism, and the purification mechanism is mounted in the middle of the upper surface of the chassis; the filtering mechanism is mounted on the right side wall of the purifying mechanism; the forming mechanism is vertically mounted at the right end of the upper surface of the chassis; and the energy conversion mechanism is transversely mounted on the upper surface of the chimney. CO2 gas can be cooled and converted into dry ice, CO2 gas emission is reduced, the greenhouse effect is prevented, CO2 gas is recycled, flue gas waste heat is converted into electric energy, electric energy is saved, and then the production cost of enterprises is reduced.

Description

Technical Field

[0001] The invention relates to the technical field of air pollution control, in particular to a reaction device and a method for reducing CO emission in flue gas. Background Art

[0002] Flue gas is produced by the combustion of dyes. It is the main cause of air pollution in residential areas. The composition of flue gas is very complex, including water vapor, sulfur dioxide, nitrogen, oxygen, carbon monoxide, carbon dioxide, hydrocarbons and nitrogen oxides, etc. Carbon monoxide gas, as a toxic gas, directly threatens the health of residents. It must be purified by a plasma purifier, which first ionizes the carbon monoxide gas and then allows the carbon ions and oxygen ions to recombine to form stable carbon dioxide gas.

[0003] Direct emission of carbon dioxide gas will cause carbon emissions to exceed the standard, which is the main factor leading to the greenhouse effect. Carbon dioxide gas cannot be reused, and the waste heat carried by the flue gas cannot be recovered and reused, resulting in a waste of resources. For this reason, a reaction device with energy conversion function for reducing CO emissions in flue gas is proposed. Summary of the invention

[0004] The present invention provides a reaction device and a method for reducing CO emission in flue gas, aiming to solve the problem that carbon dioxide cannot be recycled and reused and flue gas waste heat cannot be recovered in the prior art.

[0005] The present invention achieves the above-mentioned purpose through the following technical scheme: a reaction device for reducing CO emissions in flue gas, comprising a chassis, a chimney, and a water tank, wherein the chimney is horizontally installed at the left end of the upper surface of the chassis, and the water tank is horizontally installed in the inner cavity of the chimney. There is a gap between the water tank and the chimney, and the chimney allows the smoke to flow from left to right, and the waste heat of the smoke heats the water tank. The reaction device for reducing CO emissions in flue gas also includes a purification mechanism, a filtering mechanism, a molding mechanism and an energy conversion mechanism, wherein the purification mechanism is installed in the middle of the upper surface of the chassis; the filtering mechanism is installed on the right side wall of the purification mechanism; the molding mechanism is vertically installed at the right end of the upper surface of the chassis; and the energy conversion mechanism is horizontally installed on the upper surface of the chimney.

[0006] Specifically, the purification mechanism includes a purification box, a smoke hood, a flow-equalizing net, a filter plate, a plasma generator, a box door, an insulator and a fan. The purification box is installed in the middle of the upper surface of the chassis; the smoke hood is installed on the left side wall of the purification box, and the smoke hood is installed at the right end of the chimney to allow smoke to enter the purification box from the chimney; the flow-equalizing net is installed on the left side of the inner cavity of the purification box, and the smoke is dispersed through the mesh holes of the flow-equalizing net; the filter plate is plugged into the left end of the inner cavity of the purification box to filter the smoke and remove particulate matter in the smoke; the plasma generator is placed in the middle of the inner cavity of the purification box, and the plasma generator generates positive high voltage and negative high voltage to ionize the smoke, and CO gas is decomposed into CO gas; the box door is connected to the right end of the front of the purification box by a hinge; there are several insulators, all of which are installed on the inner top of the box door, and the plasma generator is powered by the insulator; the fan is installed on the right side wall of the purification box.

[0007] Specifically, the filtering mechanism includes an air hood, a carbon dioxide filter membrane and a multi-pass, the air hood is installed on the right side wall of the purification box; there are several carbon dioxide filter membranes, which are horizontally installed on the right side wall of the air hood from top to bottom, and CO gas is separated from the flue gas through the carbon dioxide filter membrane; the multi-pass is vertically installed at the air outlet of the carbon dioxide filter membrane.

[0008] Specifically, the forming mechanism includes a high-pressure box, a pressure cover, a condenser, an air pump and an air tank. The high-pressure box is installed at the right end of the upper surface of the chassis; the pressure cover is connected to the front of the high-pressure box by a hinge; there are several condensers installed around the high-pressure box, and heat exchange is completed with the high-pressure box through the condenser to cool the high-pressure box; the air pump and the air tank are respectively installed on the front and rear sides of the upper surface of the high-pressure box, the top of the air tank is connected to the multi-way through the air pipe, the air inlet of the air pump is connected to the outer wall of the air tank, and the air outlet of the air pump is connected to the high-pressure box, and the CO gas in the gas tank is transported to the high-pressure box under the suction of the air pump.

[0009] Specifically, a pressure gauge is installed on the outer wall of the high-pressure box.

[0010] Specifically, the energy conversion mechanism includes a base, a steam cylinder, a steam piston, a column, a connecting rod, a power generation component, a valve body, a pressure reducing valve, a driving rod, a valve core, a channel, a conduit, a cross rod, a lever and a plug rod. The base is horizontally installed on the upper surface of the chimney; the steam cylinder is installed on the left end of the upper surface of the base; the steam piston is horizontally inserted into the inner cavity of the steam cylinder, and the steam piston is pushed left and right by the steam pressure; the column is vertically installed on the right end of the top of the steam piston; one end of the connecting rod is connected to the right end of the steam piston through a pin shaft; the power generation component is installed on the right end of the upper surface of the base; the valve body is installed on the upper surface of the steam cylinder; the pressure reducing valve is installed at the center of the upper surface of the valve body, and the top of the pressure reducing valve is aligned with the top of the water tank. The valve body is connected by an air pipe; the driving rod is inserted into the right side wall of the valve body so as to be able to slide left and right; the valve core is inserted into the inner cavity of the valve body, and the right side wall of the valve core is connected to the left end of the driving rod; there are three channels, which are opened at the bottom of the inner cavity of the valve body from left to right, and the middle channel is connected to the top of the water tank through an air pipe; there are two conduits, one end of which is respectively installed on the left and right sides of the valve body, and the other end is connected to the top of the steam cylinder, so that steam enters the steam cylinder from the valve body through the conduit; the cross bar is horizontally installed on the top of the right side wall of the steam cylinder; there are two shifting rods, which are respectively installed on the left and right sides of the front of the cross bar through pins; there are two plugging rods, which are separately installed on the left and right sides of the front of the driving rod, and the plugging rods are inserted in the inner cavity of the shifting rod.

[0011] Specifically, the valve core is in a trapezoidal shape.

[0012] Specifically, the power generation assembly includes a gearbox, a rotating shaft, a cam, a first gear, a generator and a second gear. The gearbox is installed at the right end of the upper surface of the base; the rotating shaft is installed on the left side of the inner cavity of the gearbox so that it can rotate around its own axis through a bearing; the cam and the first gear are respectively installed at the front and rear ends of the rotating shaft, and the outer side of the cam is connected to the other end of the connecting rod through a pin shaft. When the steam piston moves back and forth left and right, the connecting rod can pull the cam to make a circular motion; the generator is installed at the right end of the rear side of the gearbox; the second gear is installed at the input end of the generator, and the second gear is meshed and connected with the first gear.

[0013] Specifically, a transmission ratio between the first gear and the second gear is less than 1.

[0014] A reaction method for reducing CO emissions in flue gas comprises the following steps:

[0015] Step 1: The generated flue gas enters the chimney through the flue. The waste heat of the flue gas heats the distilled water in the water tank. Under the suction of the fan, the flue gas enters the purification box from left to right. The filter plate filters out the particulate matter in the flue gas, and the flow-evening net can disperse the flue gas. When the flue gas passes through the plasma generator evenly, the plasma generator generates positive and negative high voltages. The high voltage ionizes the gas, and the ionized gas molecules recombine. The SO gas is converted into stable SO gas, and the CO gas is converted into stable CO gas, thereby achieving CO gas purification.

[0016] Step 2: After the mixed gas enters the gas hood, the carbon dioxide filter membrane separates the CO gas, and the CO gas enters the gas tank through multiple channels. The air pump's own suction injects the CO gas into the high-pressure box until the air pressure in the high-pressure box reaches the standard for making dry ice. The condenser exchanges heat with the high-pressure box, and the CO gas cools down to eventually form dry ice, thereby reducing carbon emissions and utilizing the CO gas.

[0017] Step three, the distilled water in the water tank is heated to form water vapor. When the water vapor pressure exceeds the set value of the pressure reducing valve, the water vapor enters the valve body. When the valve core is on the right side of the valve body, the water vapor passes through the left conduit. The water vapor pressure pushes the steam piston to the right. When the column pushes the right lever to the right, the plug rod drives the drive rod to move left, the valve core moves to the left, and the rightmost channel opens to achieve reversal. Water vapor enters from the right side of the steam cylinder, the steam piston moves to the left, and the water vapor on the left side of the steam cylinder flows back to the water tank along the left conduit and the middle channel. Under the water vapor pressure, the steam piston moves back and forth left and right, allowing the connecting rod to pull the cam to make a circular motion. The generator rotor rotates under the transmission of the first gear and the second gear, the generator generates electricity, and the waste heat of the flue gas is recovered and reused.

[0018] The beneficial effects of the present invention are:

[0019] 1. The present invention allows the flue gas to move from left to right in the purification box through the suction of the fan, the filter plate filters out the particulate matter in the flue gas, the mesh of the equal flow net disperses the flue gas, the flue gas passes through the plasma generator evenly, the mixed gas is ionized and recombined, CO gas and SO gas are removed, and structurally stable CO2 gas and SO2 gas are formed, thereby reducing the CO gas emission in the flue gas, the carbon dioxide filter membrane separates the CO2 gas, and the CO2 gas in the gas tank is injected into the high-pressure box under the suction of the air pump until the CO2 gas pressure reaches the dry ice manufacturing standard, the condenser and the high-pressure box undergo heat exchange, the CO2 gas is cooled to form dry ice, thereby reducing the CO2 gas emission, preventing the formation of the greenhouse effect, and the CO2 gas is recycled and reused.

[0020] 2. The present invention heats the distilled water in the water tank through the waste heat of flue gas, and gradually generates water vapor. When the water vapor pressure exceeds the set value of the pressure reducing valve, it will enter the valve body. The conduit can connect the valve body with the left and right sides of the steam cylinder. When the valve core is on the right side of the valve body, the water vapor pressure pushes the steam piston to move right, and the column touches the bottom of the lever to swing right. At the same time, the plug rod pulls the left side of the drive rod, the valve core moves left, the water vapor is reversed, and the water vapor enters from the right side of the steam cylinder, and the steam piston moves left. Therefore, the purpose of the steam piston reciprocating left and right is achieved, and the connecting rod pulls the cam to make a circular motion. Under the transmission of the first gear and the second gear, the generator generates electrical energy, converts the waste heat of flue gas into electrical energy, saves electrical energy, and thus reduces the production cost of the enterprise. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the structure of the present invention;

[0022] Figure 2 It is a schematic diagram of the purification mechanism structure of the present invention;

[0023] Figure 3 for Figure 1 A in the enlarged view;

[0024] Figure 4 It is a structural schematic diagram of the molding mechanism of the present invention;

[0025] Figure 5 It is a schematic diagram of the structure of the energy conversion mechanism of the present invention;

[0026] Figure 6 It is a front cross-sectional view of the energy conversion mechanism;

[0027] Figure 7 It is a front cross-sectional view of the power generation assembly of the present invention.

[0028] In the figure: 1, chassis; 2, chimney; 3, water tank; 4, purification mechanism; 5, filtering mechanism; 6, forming mechanism; 7, energy conversion mechanism; 41, purification box; 42, smoke hood; 43, flow-equalizing net; 44, filter plate; 45, plasma generator; 46, box door; 47, insulator; 48, fan; 51, gas hood; 52, carbon dioxide filter membrane; 53, multi-pass; 61, high-pressure box; 62, pressure cover; 63, condenser; 64, gas tank; 6 5. Air pump; 71. Base; 72. Steam cylinder; 73. Steam piston; 74. Column; 75. Connecting rod; 76. Power generation assembly; 77. Valve body; 78. Pressure reducing valve; 79. Driving rod; 710. Valve core; 711. Channel; 712. Conduit; 713. Cross bar; 714. Push rod; 715. Insert rod; 761. Gear box; 762. Rotating shaft; 763. Cam; 764. First gear; 765. Generator; 766. Second gear. DETAILED DESCRIPTION

[0029] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the preferred implementation scheme of the present invention is further described below in conjunction with specific implementation schemes and accompanying drawings.

[0030] See also Figure 1-Figure 7 The present invention provides a reaction device for reducing CO emissions in flue gas, including a chassis 1, a chimney 2 and a water tank 3. The chimney 2 is horizontally installed at the left end of the upper surface of the chassis 1, and the water tank 3 is installed in the inner cavity of the chimney 2. There is a gap between the water tank 3 and the chimney 2. The left side of the chimney 2 is connected to the flue, so that the flue gas moves from left to right in the gap between the water tank 3 and the chimney 2. The residual heat of the flue gas heats the distilled water in the water tank 3. A purification mechanism 4 and a molding mechanism 6 are respectively installed on the upper surface of the chassis 1 from left to right, a filtering mechanism 5 is installed on the right side wall of the purification mechanism 4, and an energy conversion mechanism 7 is horizontally installed on the upper surface of the chimney 2.

[0031] As a preferred embodiment, further, the purification mechanism 4 includes a purification box 41 installed in the middle of the upper surface of the chassis 1, a smoke hood 42 is installed on the left side wall of the purification box 41, and the left side of the smoke hood 42 is connected to the right side wall of the chimney 2, so that the smoke moves from the chimney 2 to the purification box 41, and a flow equalizing net 43 is installed on the left side of the inner cavity of the purification box 41. A filter plate 44 is inserted on the left side of the inner cavity of the purification box 41, and a plasma generator 45 is placed in the middle of the inner cavity of the purification box 41. A fan 48 is installed on the right side wall of the purification box 41. The rotation of the fan 48 forms a negative pressure in the purification box 41, and the smoke is filtered through the filter plate 44 to remove particulate matter in the smoke. The small holes on the surface of the flow equalizing net 43 disperse the smoke, and the plasma generator 45 generates positive and negative high voltages to ionize the CO gas. The C ions and O ions recombine to form CO2 gas, thereby eliminating the CO gas in the smoke.

[0032] As a preferred embodiment, further, the filtering mechanism 5 includes an air hood 51 installed on the right side wall of the purification box 41, and a plurality of carbon dioxide filter membranes 52 are installed laterally on the right side wall of the air hood 51 at equal distances from top to bottom. The carbon dioxide in the mixed gas is separated by the carbon dioxide filter membrane 52, and a plurality of ports 53 are installed at the gas outlet of the carbon dioxide filter membrane 52.

[0033] As a preferred embodiment, further, the forming mechanism 6 includes a high-pressure box 61 installed on the right end of the upper surface of the chassis 1, and a pressure cover 62 is connected to the front of the high-pressure box 61 by a hinge. The high-pressure box 61 is used to store high-pressure CO2 gas. A pressure gauge is installed on the top of the high-pressure box 61 to monitor the CO2 gas pressure. Condensers 63 are installed on all sides of the high-pressure box 61. The condenser 63 exchanges heat with the high-pressure box 61 to cool the high-pressure box 61. A gas tank 64 is installed on the upper surface of the high-pressure box 61. The top of the gas tank 64 is connected to the multi-way 53 through an air pipe to introduce CO2 gas into the gas tank 64. An air pump 65 is installed on the front end of the upper surface of the high-pressure box 61. The air inlet of the air pump 65 is connected to the gas tank 64, and the air outlet of the air pump 65 is connected to the high-pressure box 61. Under the suction of the air pump 65, the CO2 gas in the gas tank 64 is injected into the high-pressure box 61, so that the CO2 gas pressure reaches the standard of being compressed into dry ice.

[0034] As a preferred embodiment, further, the energy conversion mechanism 7 includes a base 71 installed horizontally on the upper surface of the chimney 2, a steam cylinder 72 is installed on the left side of the upper surface of the base 71, a steam piston 73 that can move left and right is inserted in the inner cavity of the steam cylinder 72, a column 74 is installed on the right end of the top of the steam piston 73, the right end of the steam piston 73 is connected to a connecting rod 75 through a pin shaft, a power generation component 76 is installed on the right end of the upper surface of the base 71, and mechanical energy is converted into electrical energy through the cooperation of the connecting rod 75 and the power generation component 76, a valve body 77 is installed on the upper surface of the steam cylinder 72, a pressure reducing valve 78 is installed on the top of the valve body 77, the top of the pressure reducing valve 78 is connected to the top of the water tank 3 through an air pipe, the distilled water in the water tank 3 is heated to generate water vapor, and when the water vapor pressure exceeds the set value of the pressure reducing valve 78, it will enter the valve body 77, and a driving rod 79 that can slide left and right is inserted in the right wall of the valve body 77, and a valve body 77 connected to the left end of the driving rod 79 is inserted in the inner cavity of the valve body 77 The valve core 710 and the bottom of the inner cavity of the valve body 77 are equidistantly provided with three channels 711 from left to right. The valve core 710 is in a trapezoidal shape. When the valve core 710 moves left and right, the middle channel 711 can be connected to the left and right channels 711 respectively. The middle channel 711 is connected to the water tank 3 through the air pipe. The left and right sides of the valve body 77 are both equipped with conduits 712 connected to the channels 711. The bottom of the conduit 712 is connected to the top of the steam cylinder 72. The right wall of the steam cylinder 72 is A cross bar 713 is installed horizontally on the top, and the left and right sides of the front of the cross bar 713 are connected with a lever 714 through a pin shaft. Two left and right separated plug rods 715 are installed on the front of the driving rod 79. The plug rod 715 is inserted into the inner cavity of the lever 714. When the column 74 pushes the right lever 714 to the left, the plug rod 715 can drive the driving rod 79 to move left. When the column 74 pushes the left lever 714 to the right, the plug rod 715 can drive the driving rod 79 to move right.

[0035] As a preferred solution, further, the power generation component 76 includes a gear box 761 installed on the right end of the upper surface of the base 71, and a rotating shaft 762 capable of rotating around its own axis is installed on the left side of the inner cavity of the gear box 761 through a bearing, and a cam 763 and a first gear 764 are installed at the front and rear ends of the rotating shaft 762 respectively, and a generator 765 is installed at the right end of the rear side of the gear box 761, and a second gear 766 meshing with the first gear 764 is installed at the input end of the generator 765. The transmission ratio of the first gear 764 to the second gear 766 is less than 1, which increases the rotation speed of the second gear 766, thereby increasing the rotation speed of the rotor of the generator 765, thereby increasing the power generation of the generator 765.

[0036] Working principle:

[0037] Step 1: The generated flue gas enters the chimney 2 through the flue, and the residual heat of the flue gas heats the distilled water in the water tank 3. Under the suction of the fan 48, the flue gas enters the purification box 41 from left to right, and the filter plate 44 filters out the particulate matter in the flue gas. The flow-evening net 43 can disperse the flue gas, and the flue gas passes through the plasma generator 45 evenly. The plasma generator 45 generates positive and negative high voltages. The high voltage ionizes the gas, and the ionized gas molecules are recombined. The SO gas is converted into stable SO2 gas, and the CO gas is converted into stable CO2 gas, thereby achieving CO gas purification.

[0038] Step 2: After the mixed gas enters the gas hood 51, the carbon dioxide filter membrane 52 separates the CO2 gas, and the CO2 gas enters the gas tank 64 through the multi-port 53. The air pump 65 injects the CO2 gas into the high-pressure box 61 by its own suction until the air pressure in the high-pressure box 61 reaches the standard for making dry ice. The condenser 63 exchanges heat with the high-pressure box 61, and the CO2 gas cools down to finally form dry ice, thereby reducing carbon emissions and utilizing the CO2 gas.

[0039] Step three, the distilled water in the water tank 3 is heated to form water vapor. When the water vapor pressure exceeds the set value of the pressure reducing valve 78, the water vapor enters the valve body 77. When the valve core 710 is on the right side of the valve body 77, the water vapor passes through the left conduit 712. The water vapor pressure pushes the steam piston 73 to move right. When the column 74 pushes the right lever 714 to the right, the plug rod 715 drives the drive rod 79 to move left, the valve core 710 moves to the left, and the rightmost channel 711 is opened to achieve reversal. The water vapor enters from the right side of the steam cylinder 72, and the steam piston 73 moves left. The water vapor on the left side of the steam cylinder 72 flows back to the water tank 3 along the left conduit 712 and the middle channel 711. Under the water vapor pressure, the steam piston 73 moves back and forth left and right, allowing the connecting rod 75 to pull the cam 763 to do a circular motion. The rotor of the generator 765 rotates under the transmission of the first gear 764 and the second gear 766, the generator 765 generates electricity, and the waste heat of the flue gas is recovered and reused.

[0040] The technical features of the above embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

Claims

1. A reaction device for reducing CO emissions in flue gas, comprising a chassis (1), a chimney (2), and a water tank (3), wherein the chimney (2) is transversely mounted on the left end of the upper surface of the chassis (1), and the water tank (3) is transversely mounted in the inner cavity of the chimney (2), and there is a gap between the water tank (3) and the chimney (2), and the chimney (2) allows the flue gas to flow from left to right, and the residual heat of the flue gas heats the water tank (3), characterized in that: The reaction device for reducing CO emission in flue gas also includes: A purification mechanism (4) is installed in the middle of the upper surface of the chassis (1); A filtering mechanism (5) is installed on the right side wall of the purification mechanism (4); A molding mechanism (6) is vertically mounted on the right end of the upper surface of the chassis (1); An energy conversion mechanism (7) is transversely mounted on the upper surface of the chimney (2); The purification mechanism (4) comprises: A purification box (41) is installed in the middle of the upper surface of the chassis (1); A smoke hood (42) is installed on the left side wall of the purification box (41), and the smoke hood (42) is installed on the right end of the chimney (2) to allow smoke to enter the purification box (41) from the chimney (2); A flow-evening net (43) is installed on the left side of the inner cavity of the purification box (41) to disperse the smoke through the mesh of the flow-evening net (43); A filter plate (44) is inserted into the left end of the inner cavity of the purification box (41) to filter the smoke and remove particulate matter in the smoke; The plasma generator (45) is placed in the middle of the inner cavity of the purification box (41), and generates positive high voltage and negative high voltage through the plasma generator (45), so that the flue gas is ionized and the CO gas is decomposed to form CO2 gas; A box door (46) is connected to the right end of the front side of the purification box (41) via a hinge; Insulators (47), the number of which is several and all installed on the top of the inner side of the box door (46), and the plasma generator (45) is energized through the insulators (47); A fan (48) is installed on the right side wall of the purification box (41).

2. A reaction device for reducing CO emissions in flue gas according to claim 1, characterized in that: The filtering mechanism (5) comprises: An air hood (51) is installed on the right side wall of the purification box (41); A plurality of carbon dioxide filter membranes (52) are installed laterally from top to bottom on the right side wall of the gas hood (51), and the carbon dioxide filter membranes (52) are used to separate CO2 gas from the flue gas; The multi-pass (53) is vertically installed at the gas outlet of the carbon dioxide filter membrane (52).

3. The reaction device for reducing CO emissions in flue gas according to claim 2, characterized in that: The forming mechanism (6) comprises: A high-voltage box (61) is mounted on the right end of the upper surface of the chassis (1); A pressure cover (62) is connected to the front side of the high pressure box (61) via a hinge; A plurality of condensers (63) are installed around the high-pressure box (61), and heat exchange is completed between the condensers (63) and the high-pressure box (61), so that the high-pressure box (61) is cooled; The air pump (65) and the air tank (64) are respectively installed on the front and rear sides of the upper surface of the high-pressure box (61); the top of the air tank (64) is connected to the multi-port (53) through an air pipe; the air inlet of the air pump (65) is connected to the outer wall of the air tank (64); the air outlet of the air pump (65) is connected to the high-pressure box (61); and the CO2 gas in the air tank (64) is transported to the high-pressure box (61) under the suction of the air pump (65).

4. A reaction device for reducing CO emissions in flue gas according to claim 3, characterized in that: A pressure gauge is installed on the outer wall of the high-pressure box (61).

5. A reaction device for reducing CO emissions in flue gas according to claim 4, characterized in that: The energy conversion mechanism (7) comprises: A base (71) is transversely mounted on the upper surface of the chimney (2); A steam cylinder (72) is mounted on the left end of the upper surface of the base (71); A steam piston (73) is inserted transversely into the inner cavity of the steam cylinder (72) and is pushed by steam pressure to move left and right; A column (74) is vertically mounted on the right end of the top of the steam piston (73); A connecting rod (75), one end of which is connected to the right end of the steam piston (73) through a pin; A power generation assembly (76) is mounted on the right end of the upper surface of the base (71); A valve body (77) is mounted on the upper surface of the steam cylinder (72); A pressure reducing valve (78) is installed at the center of the upper surface of the valve body (77), and the top of the pressure reducing valve (78) is connected to the top of the water tank (3) through an air pipe; A driving rod (79) is inserted into the right side wall of the valve body (77) so as to slide leftward and rightward; The valve core (710) is inserted into the inner cavity of the valve body (77), and the right side wall of the valve core (710) is connected to the left end of the driving rod (79); There are three channels (711) which are opened from left to right at the bottom of the inner cavity of the valve body (77), and the middle channel (711) is connected to the top of the water tank (3) through an air pipe; There are two conduits (712), one end of which is respectively installed on the left and right sides of the valve body (77), and the other end is connected to the top of the steam cylinder (72), so that steam enters the steam cylinder (72) from the valve body (77) through the conduits (712); A cross bar (713) is transversely mounted on the top of the right side wall of the steam cylinder (72); There are two levers (714), which are respectively installed on the left and right sides of the front of the cross bar (713) through pins; There are two insertion rods (715) which are separately installed on the front of the driving rod (79) on the left and right sides, and the insertion rods (715) are inserted into the inner cavity of the shifting rod (714).

6. A reaction device for reducing CO emissions in flue gas according to claim 5, characterized in that: The valve core (710) is in a trapezoidal shape.

7. The reaction device for reducing CO emission in flue gas according to claim 6, characterized in that: The power generation assembly (76) comprises: A gear box (761) is mounted on the right end of the upper surface of the base (71); A rotating shaft (762) is installed on the left side of the inner cavity of the gear box (761) via a bearing so as to be rotatable around its own axis; The cam (763) and the first gear (764) are respectively mounted on the front and rear ends of the rotating shaft (762), and the outer side of the cam (763) is connected to the other end of the connecting rod (75) through a pin shaft. When the steam piston (73) reciprocates left and right, the connecting rod (75) can pull the cam (763) to make a circular motion. A generator (765) is installed at the rear right end of the gear box (761); The second gear (766) is installed at the input end of the generator (765), and the second gear (766) is meshedly connected with the first gear (764).

8. The reaction device for reducing CO emission in flue gas according to claim 7, characterized in that: The transmission ratio between the first gear (764) and the second gear (766) is less than 1.

9. A reaction method for reducing CO emissions in flue gas, which is applied to the reaction device for reducing CO emissions in flue gas as claimed in claim 8, characterized in that: The following steps are involved: Step 1: The generated flue gas enters the chimney (2) through the flue, and the residual heat of the flue gas heats the distilled water in the water tank (3). Under the suction of the fan (48), the flue gas enters the purification box (41) from left to right, and the filter plate (44) filters out the particulate matter in the flue gas. The flow-evening net (43) can disperse the flue gas. When the flue gas passes through the plasma generator (45) evenly, the plasma generator (45) generates positive and negative high voltages. The high voltage ionizes the gas, and the ionized gas molecules recombine, so that the SO gas is converted into stable SO2 gas, and the CO gas is converted into stable CO2 gas, thereby achieving CO gas purification. Step 2: After the mixed gas enters the gas hood (51), the carbon dioxide filter membrane (52) separates the CO2 gas, and the CO2 gas enters the gas tank (64) through the multi-port (53). The air pump (65) injects the CO2 gas into the high-pressure box (61) by its own suction until the air pressure in the high-pressure box (61) reaches the standard for making dry ice. The condenser (63) and the high-pressure box (61) perform heat exchange, and the CO2 gas cools down to finally form dry ice, thereby reducing carbon emissions and utilizing the CO2 gas. Step 3: The distilled water in the water tank (3) is heated to form water vapor. When the water vapor pressure exceeds the set value of the pressure reducing valve (78), the water vapor enters the valve body (77). When the valve core (710) is on the right side of the valve body (77), the water vapor passes through the left conduit (712). The water vapor pressure pushes the steam piston (73) to move right. When the column (74) pushes the right lever (714) to the right, the plug rod (715) drives the driving rod (79) to move left, the valve core (710) moves to the left, and the rightmost channel (711) opens to achieve reversal. Steam enters from the right side of the steam cylinder (72), the steam piston (73) moves to the left, and the water vapor on the left side of the steam cylinder (72) flows back to the water tank (3) along the left conduit (712) and the middle channel (711). Under the water vapor pressure, the steam piston (73) moves back and forth left and right, allowing the connecting rod (75) to pull the cam (763) to make a circular motion. Under the transmission of the first gear (764) and the second gear (766), the rotor of the generator (765) rotates, the generator (765) generates electrical energy, and the waste heat of the flue gas is recovered and reused.

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