CN115178056A - Efficient capturing method and device for medium and high-concentration carbon dioxide - Google Patents
Efficient capturing method and device for medium and high-concentration carbon dioxide Download PDFInfo
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- CN115178056A CN115178056A CN202210905546.6A CN202210905546A CN115178056A CN 115178056 A CN115178056 A CN 115178056A CN 202210905546 A CN202210905546 A CN 202210905546A CN 115178056 A CN115178056 A CN 115178056A
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- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 title claims abstract description 158
- 229910002092 carbon dioxide Inorganic materials 0.000 title claims abstract description 79
- 239000001569 carbon dioxide Substances 0.000 title claims abstract description 74
- 238000000034 method Methods 0.000 title claims abstract description 20
- 230000002745 absorbent Effects 0.000 claims abstract description 74
- 239000002250 absorbent Substances 0.000 claims abstract description 74
- 239000007788 liquid Substances 0.000 claims description 49
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 36
- 238000001914 filtration Methods 0.000 claims description 13
- 239000007921 spray Substances 0.000 claims description 9
- 238000007599 discharging Methods 0.000 claims description 8
- 230000001174 ascending effect Effects 0.000 claims description 4
- 238000005507 spraying Methods 0.000 claims description 4
- 230000000903 blocking effect Effects 0.000 claims 1
- 239000013589 supplement Substances 0.000 claims 1
- 238000000926 separation method Methods 0.000 abstract description 8
- 238000005265 energy consumption Methods 0.000 abstract description 6
- 230000000694 effects Effects 0.000 abstract description 4
- 238000004821 distillation Methods 0.000 description 7
- 238000010521 absorption reaction Methods 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 3
- 230000008929 regeneration Effects 0.000 description 3
- 238000011069 regeneration method Methods 0.000 description 3
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 2
- 238000003795 desorption Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000005431 greenhouse gas Substances 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 238000000746 purification Methods 0.000 description 2
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 1
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- 229910021529 ammonia Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 239000003546 flue gas Substances 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000003345 natural gas Substances 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000009628 steelmaking Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
- 238000010792 warming Methods 0.000 description 1
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/14—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by absorption
- B01D53/1456—Removing acid components
- B01D53/1475—Removing carbon dioxide
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/14—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by absorption
- B01D53/18—Absorbing units; Liquid distributors therefor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2258/00—Sources of waste gases
- B01D2258/02—Other waste gases
- B01D2258/0283—Flue gases
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02C—CAPTURE, STORAGE, SEQUESTRATION OR DISPOSAL OF GREENHOUSE GASES [GHG]
- Y02C20/00—Capture or disposal of greenhouse gases
- Y02C20/40—Capture or disposal of greenhouse gases of CO2
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Analytical Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Treating Waste Gases (AREA)
- Gas Separation By Absorption (AREA)
Abstract
The invention belongs to the field of carbon dioxide, in particular to a high-efficiency capturing method and a device for medium-high concentration carbon dioxide, aiming at the problems that the contact time is short, the capturing effect is poor, and simultaneously, because the content of the carbon dioxide in an absorbent is low, the separation time of the subsequent carbon dioxide separating process is long, and the energy consumption is large when the existing carbon dioxide is captured, the invention provides a scheme which comprises a capturing box, wherein four corners of the bottom of the capturing box are fixedly connected with supporting legs, the top of the capturing box is fixedly communicated with an exhaust pipe, and one side of the capturing box is fixedly communicated with an air inlet pipe.
Description
Technical Field
The invention relates to the technical field of carbon dioxide, in particular to a high-efficiency capturing method and device for medium-high concentration carbon dioxide.
Background
Carbon dioxide (CO 2) is a main greenhouse gas causing global warming, and the capture and separation of CO2 in the flue gas of a coal-fired power plant is an important field of greenhouse gas emission reduction. In addition, a large number of CO2 capture or separation processes also exist in industrial fields such as steel making, cement, chemical industry (e.g., ammonia synthesis, hydrogen production, natural gas purification), and the like. The absorption method is the most mature CO2 capture and separation technology which is expected to realize large-scale commercial application at present.
The utility model with the publication number of CN203944274U discloses a carbon dioxide trapping or separating device coupled with a low-temperature multi-effect distillation technology, a rich liquid outlet of an absorption tower is connected with a low-temperature multi-effect distillation device, the low-temperature multi-effect distillation device is connected with an absorbent lean liquid storage tank, a concentrated rich liquid outlet of the distillation device is connected with a regeneration tower, and outlets of the regeneration tower and the low-temperature multi-effect distillation device are connected with a gas-liquid separation tank; the system can be applied to the fields of process gas purification, carbon dioxide emission reduction and the like, concentration treatment is carried out before CO2 rich liquid enters a desorption tower by adopting a low-temperature multi-effect distillation technology, the participation degree of water in the rich liquid desorption process in the regeneration tower is reduced, the heat load of the reboiler is reduced, and the reduction of the total energy consumption in the CO2 capturing or separating process can be realized compared with the energy consumption increased by the low-temperature multi-effect distillation device.
The prior method and device for capturing the carbon dioxide with medium and high concentration are provided to solve the problems that the prior method and device for capturing the carbon dioxide only utilizes an absorbent to spray the carbon dioxide to contact with the carbon dioxide in the air, the contact time is short, the capturing effect is poor, and meanwhile, the content of the carbon dioxide in the absorbent is low, the subsequent process for separating the carbon dioxide needs to carry out long-time unnecessary work, the separation time is long, and the energy consumption is high.
Disclosure of Invention
The invention aims to solve the problems that in the prior art, when carbon dioxide is captured, an absorbent is usually only used for spraying, the carbon dioxide is in contact with carbon dioxide in the air, the contact time is short, the capturing effect is poor, and meanwhile, because the content of the carbon dioxide in the absorbent is low, the subsequent carbon dioxide separation process needs to carry out long-time unnecessary work, the separation time is long, and the energy consumption is high.
In order to achieve the purpose, the invention adopts the following technical scheme:
a high-efficiency capturing device for medium-high concentration carbon dioxide comprises a capturing box, wherein four corners of the bottom of the capturing box are fixedly connected with supporting legs, the top of the capturing box is fixedly communicated with an exhaust pipe, one side of the capturing box is fixedly communicated with an air inlet pipe, an exhaust fan is arranged inside the air inlet pipe, a plurality of carbon dioxide concentration sensors are arranged on the inner wall of one side of the capturing box, a temporary storage box is arranged on one side of the capturing box, the capturing box is fixedly communicated with the temporary storage box through a liquid discharge pipe, an electromagnetic valve is arranged on the liquid discharge pipe, and a filtering assembly for filtering air is arranged at one end of the air inlet pipe;
the inner wall of the bottom of the catching box is fixedly connected with a second inclined plate, the top of the second inclined plate is fixedly connected with a fixed plate, one side of the fixed plate is provided with a plurality of arc-shaped holes, and one side of the fixed plate is slidably connected with a plugging assembly for plugging the arc-shaped holes;
the top of the catching box is provided with a liquid supply assembly for feeding an absorbent;
the inner wall of one side of the catching box is connected with a baffle in a sliding manner, the baffle is matched with the air inlet pipe for use, and the top of the baffle is provided with a control assembly for controlling an exhaust fan;
and a lifting assembly for driving the baffle to lift is arranged on one side of the catching box.
Preferably, filtering component includes that the thread bush of threaded sleeve at the intake pipe outer wall, the filter screen has been placed to the inside of thread bush, the filter screen uses with the intake pipe cooperation for impurity among the filtered air improves device life.
Preferably, the plugging assembly comprises a connecting rod which is slidably connected to one side of the fixed plate, a plurality of side plates are fixedly connected to the bottom of the connecting rod, a plurality of sliding plates are fixedly connected to the bottom of the connecting rod, and the sliding plates are matched with the arc-shaped holes for plugging the arc-shaped holes.
Preferably, the liquid supply assembly comprises a water pump fixedly connected to the top of the trapping box, an absorbent box is arranged on one side of the trapping box, a liquid inlet of the water pump is fixedly communicated with a liquid inlet pipe, the bottom of the liquid inlet pipe extends into the absorbent box, a liquid outlet pipe is fixedly communicated with a water outlet of the water pump, one end of the liquid outlet pipe penetrates through the trapping box and is fixedly communicated with a water box, the water box is fixedly connected to the inner wall of the top of the trapping box, and a plurality of spray heads are fixedly communicated with the bottom of the water box and used for providing absorbent.
Preferably, the control assembly comprises a push rod fixedly connected to the top of the baffle, the inner wall of one side of the collecting box is fixedly connected with a waterproof box, the inner wall of the top of the waterproof box is fixedly connected with an elastic switch, the elastic switch is matched with the push rod for use, and the elastic switch is electrically connected with the exhaust fan and used for controlling the on-off state of the exhaust fan.
Preferably, the lifting assembly comprises a servo motor fixedly connected to one side of the catching box, an output shaft of the servo motor penetrates through the catching box and is fixedly connected with a gear, a first vertical plate is fixedly connected to the top of the baffle, and a first rack meshed with the gear is fixedly connected to one side of the first vertical plate and used for driving the baffle to lift.
Preferably, the top fixedly connected with diaphragm of fixed plate, the first swash plate of top fixedly connected with of diaphragm, the top fixedly connected with second riser of connecting rod, the second riser slides and runs through diaphragm and first swash plate and fixedly connected with second rack, the second rack meshes with the gear mutually for drive the connecting rod removal.
Preferably, the bottom of curb plate is the slope setting and uses with the cooperation of second swash plate, guarantees when discharging the absorbent, can realize sealed, avoids containing the absorbent of low concentration carbon dioxide also to discharge in the lump, increases follow-up work load.
A high-efficiency capturing method for medium and high concentration carbon dioxide specifically comprises the following steps:
s1, starting an air draft fan, sucking air into the trapping box through a threaded sleeve and an air inlet pipe by the air draft fan, enabling the bottom of the air inlet pipe to enter an absorbent in the trapping box, enabling carbon dioxide to rise after being primarily absorbed by the absorbent, and discharging the carbon dioxide through an exhaust pipe;
s2, in the ascending process, starting a water pump, sucking the absorbent in the absorbent box out through a liquid inlet pipe and discharging the absorbent through a liquid outlet pipe by the water pump, spraying the absorbent through a spray head after entering a water box, absorbing carbon dioxide in the air again, and dropping the absorbent into the catching box, wherein the dropped absorbent slides down through the top of the first inclined plate and the top of the second inclined plate and enters one side of the fixed plate through the arc-shaped hole;
s3, when the carbon dioxide concentration sensor detects that the carbon dioxide concentration in a certain area reaches a standard, a servo motor is started, an output shaft of the servo motor drives a gear to rotate, the gear drives a first rack to vertically move upwards and drives a second rack to vertically move downwards, at the moment, the first rack drives a first vertical plate to vertically move upwards, the first vertical plate drives a baffle to vertically move upwards, the baffle drives a push rod to vertically move upwards, the baffle blocks one end of an air inlet pipe, continuous air inlet is avoided, meanwhile, the push rod touches an elastic switch, at the moment, an air exhaust fan is closed, air inlet is not carried out, and damage of the air exhaust fan is avoided;
s4, the second rack drives the vertical downstream of second riser, the second riser drives the vertical downstream of connecting rod, the connecting rod drives the vertical downstream of a plurality of curb plates, separate the absorbent of fixed plate one side, the connecting rod drives the vertical downstream of sliding plate and plugs up the arc hole, open corresponding solenoid valve, make the absorbent that carbon dioxide concentration reaches the standard pass through the inside that the fluid-discharge tube discharged the case of keeping in, keep in, put the back, make servo motor' S output shaft reversal, resume the device to initial position, continue to admit air, shower nozzle spun absorbent can supply exhaust absorbent simultaneously, be convenient for continuously use.
Compared with the prior art, the invention has the beneficial effects that:
1. starting an air draft fan, pumping air into the trapping box through a threaded sleeve and an air inlet pipe by the air draft fan, enabling the bottom of the air inlet pipe to enter an absorbent in the trapping box, enabling carbon dioxide to rise after being primarily absorbed by the absorbent, and discharging the carbon dioxide through an exhaust pipe;
2. in the ascending process, a water pump is started, the water pump sucks the absorbent in the absorbent box out through a liquid inlet pipe and discharges the absorbent through a liquid outlet pipe, the absorbent is sprayed out through a spray head after entering a water box, carbon dioxide in the air is absorbed again and falls into the trapping box, and the falling absorbent slides down through the top of the first inclined plate and the top of the second inclined plate and enters one side of the fixing plate through the arc-shaped holes;
3. when the carbon dioxide concentration sensor detects that the concentration of carbon dioxide in a certain area reaches a standard, a servo motor is started, an output shaft of the servo motor drives a gear to rotate, the gear drives a first rack to vertically move upwards and drives a second rack to vertically move downwards, at the moment, the first rack drives a first vertical plate to vertically move upwards, the first vertical plate drives a baffle to vertically move upwards, the baffle drives a push rod to vertically move upwards, the baffle blocks one end of an air inlet pipe to avoid continuous air intake, meanwhile, the push rod touches an elastic switch, at the moment, an air exhaust fan is closed and does not intake air any more, and the damage of the air exhaust fan is avoided;
4. the second rack drives the vertical downstream of second riser, the second riser drives the vertical downstream of connecting rod, the connecting rod drives the vertical downstream of a plurality of curb plates, separate the absorbent of fixed plate one side, the connecting rod drives the vertical downstream of sliding plate and plugs up the arc hole, open corresponding solenoid valve, make the absorbent that carbon dioxide concentration reaches the standard pass through the inside that the fluid-discharge tube discharged the case of keeping in, keep in, put the back, make servo motor's output shaft reversal, resume the device to initial position, continue to admit air, shower nozzle spun absorbent can supply discharged absorbent simultaneously, be convenient for continuously use.
According to the invention, air is firstly discharged into the absorbent for primary absorption, and then the absorbent is sprayed for secondary absorption, so that the absorption effect is good, the absorbent absorbing carbon dioxide cannot be directly discharged, the concentration can be detected by the carbon dioxide sensor, and the absorbent is discharged after the concentration reaches the standard, so that the energy consumption of the time for subsequently separating carbon dioxide can be greatly reduced, and the use is convenient.
Drawings
FIG. 1 is a schematic three-dimensional structure diagram of a first view angle of a high-efficiency capturing device for medium-high concentration carbon dioxide according to the present invention;
FIG. 2 is a schematic three-dimensional structure diagram of a second view angle of a high-efficiency capturing device for medium and high concentration carbon dioxide according to the present invention;
FIG. 3 is a schematic three-dimensional sectional view of the catch tank of the present invention;
FIG. 4 is a schematic view of the structure of the baffle and the push rod of the present invention;
FIG. 5 is a schematic view of the structure of the threaded sleeve and the air inlet pipe of the present invention;
FIG. 6 is a schematic three-dimensional structure of a fixing plate and a side plate according to the present invention;
fig. 7 is an exploded view of the fixing plate and the side plate according to the present invention.
In the figure: 1. a support leg; 2. a catch tank; 3. an exhaust pipe; 4. a liquid outlet pipe; 5. a water pump; 6. a liquid inlet pipe; 7. an absorbent box; 8. a temporary storage box; 9. a liquid discharge pipe; 10. an electromagnetic valve;
11. a threaded sleeve; 12. an air inlet pipe; 13. a servo motor; 14. a side plate; 15. a baffle plate;
16. a first vertical plate; 17. a spray head; 18. a water box; 19. a first rack; 20. a gear;
21. a first swash plate; 22. a push rod; 23. an elastic switch; 24. a waterproof box; 25. filtering with a screen; 26. an air draft fan; 27. an arc-shaped hole; 28. a second swash plate; 29. a connecting rod; 30. a carbon dioxide concentration sensor; 31. a second vertical plate; 32. a second rack; 33. a sliding plate; 34. a fixing plate; 35. a transverse plate.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.
Example one
Referring to fig. 1-7, a high-efficiency capturing device for medium and high concentration carbon dioxide comprises a capturing box 2, wherein four corners of the bottom of the capturing box 2 are fixedly connected with supporting legs 1, the top of the capturing box 2 is fixedly communicated with an exhaust pipe 3, one side of the capturing box 2 is fixedly communicated with an air inlet pipe 12, an air exhaust fan 26 is arranged inside the air inlet pipe 12, a plurality of carbon dioxide concentration sensors 30 are arranged on the inner wall of one side of the capturing box 2, a temporary storage box 8 is arranged on one side of the capturing box 2, the capturing box 2 is fixedly communicated with the temporary storage box 8 through a liquid discharge pipe 9, an electromagnetic valve 10 is arranged on the liquid discharge pipe 9, and one end of the air inlet pipe 12 is provided with a filtering component for filtering air;
the inner wall of the bottom of the catching box 2 is fixedly connected with a second inclined plate 28, the top of the second inclined plate 28 is fixedly connected with a fixed plate 34, one side of the fixed plate 34 is provided with a plurality of arc-shaped holes 27, and one side of the fixed plate 34 is slidably connected with a plugging component for plugging the arc-shaped holes 27;
the top of the catching box 2 is provided with a liquid supply assembly for feeding absorbent;
the inner wall of one side of the catch box 2 is connected with a baffle 15 in a sliding way, the baffle 15 is matched with the air inlet pipe 12 for use, and the top of the baffle 15 is provided with a control component for controlling an exhaust fan 26;
a lifting assembly for driving the baffle 15 to ascend and descend is provided at one side of the catch tank 2.
Example two
Referring to fig. 1-7, a high-efficiency capturing device for medium-high concentration carbon dioxide comprises a capturing box 2, four corners of the bottom of the capturing box 2 are fixedly connected with supporting legs 1, the top of the capturing box 2 is fixedly communicated with an exhaust pipe 3, one side of the capturing box 2 is fixedly communicated with an air inlet pipe 12, an air exhaust fan 26 is arranged inside the air inlet pipe 12, a plurality of carbon dioxide concentration sensors 30 are arranged on the inner wall of one side of the capturing box 2, a temporary storage box 8 is arranged on one side of the capturing box 2, the capturing box 2 is fixedly communicated with the temporary storage box 8 through a liquid discharge pipe 9, an electromagnetic valve 10 is arranged on the liquid discharge pipe 9, a filtering component for filtering air is arranged at one end of the air inlet pipe 12 and comprises a threaded sleeve 11 which is sleeved on the outer wall of the air inlet pipe 12 through threads, a filtering screen 25 is arranged inside the threaded sleeve 11, and is matched with the air inlet pipe 12 for filtering impurities in the air, so that the service life of the device is prolonged;
the inner wall of the bottom of the catching box 2 is fixedly connected with a second inclined plate 28, the top of the second inclined plate 28 is fixedly connected with a fixed plate 34, one side of the fixed plate 34 is provided with a plurality of arc-shaped holes 27, one side of the fixed plate 34 is slidably connected with a plugging component for plugging the arc-shaped holes 27, the plugging component comprises a connecting rod 29 slidably connected to one side of the fixed plate 34, the bottom of the connecting rod 29 is fixedly connected with a plurality of side plates 14, the bottom of the connecting rod 29 is fixedly connected with a plurality of sliding plates 33, and the sliding plates 33 are matched with the arc-shaped holes 27 for use and are used for plugging the arc-shaped holes 27;
the top of the catching box 2 is provided with a liquid supply assembly for feeding an absorbent, the liquid supply assembly comprises a water pump 5 fixedly connected to the top of the catching box 2, one side of the catching box 2 is provided with an absorbent box 7, a liquid inlet of the water pump 5 is fixedly communicated with a liquid inlet pipe 6, the bottom of the liquid inlet pipe 6 extends to the inside of the absorbent box 7, a water outlet of the water pump 5 is fixedly communicated with a liquid outlet pipe 4, one end of the liquid outlet pipe 4 penetrates through the catching box 2 and is fixedly communicated with a water box 18, the water box 18 is fixedly connected to the inner wall of the top of the catching box 2, and the bottom of the water box 18 is fixedly communicated with a plurality of spray heads 17 for providing the absorbent;
the inner wall of one side of the collecting box 2 is connected with a baffle 15 in a sliding mode, the baffle 15 is matched with the air inlet pipe 12 for use, a control assembly used for controlling the exhaust fan 26 is arranged at the top of the baffle 15 and comprises a push rod 22 fixedly connected to the top of the baffle 15, a waterproof box 24 is fixedly connected to the inner wall of one side of the collecting box 2, an elastic switch 23 is fixedly connected to the inner wall of the top of the waterproof box 24, the elastic switch 23 is matched with the push rod 22 for use, and the elastic switch 23 is electrically connected with the exhaust fan 26 and used for controlling the on-off state of the exhaust fan 26;
one side of the catching box 2 is provided with a lifting component for driving the baffle plate 15 to lift, the lifting component comprises a servo motor 13 fixedly connected to one side of the catching box 2, an output shaft of the servo motor 13 penetrates through the catching box 2 and is fixedly connected with a gear 20, the top of the baffle plate 15 is fixedly connected with a first vertical plate 16, one side of the first vertical plate 16 is fixedly connected with a first rack 19 meshed with the gear 20 and is used for driving the baffle plate 15 to lift, the top of a fixing plate 34 is fixedly connected with a transverse plate 35, the top of the transverse plate 35 is fixedly connected with a first inclined plate 21, the top of a connecting rod 29 is fixedly connected with a second vertical plate 31, the second vertical plate 31 slidably penetrates through the transverse plate 35 and the first inclined plate 21 and is fixedly connected with a second rack 32, the second rack 32 is meshed with the gear 20 and is used for driving the connecting rod 29 to move, the bottom of the side plate 14 is obliquely arranged and is matched with the second inclined plate 28, so that sealing can be realized when the absorbent is discharged, the absorbent containing low-concentration carbon dioxide is prevented from being discharged together, and subsequent workload is increased.
A high-efficiency capturing method for medium and high concentration carbon dioxide specifically comprises the following steps:
s1, starting an air draft fan 26, sucking air into the interior of the catching box 2 through a threaded sleeve 11 and an air inlet pipe 12 by the air draft fan 26, enabling the bottom of the air inlet pipe 12 to enter an absorbent in the interior of the catching box 2, enabling carbon dioxide to rise after being primarily absorbed by the absorbent, and discharging the carbon dioxide through an exhaust pipe 3;
s2, in the ascending process, starting a water pump 5, sucking the absorbent in an absorbent box 7 by the water pump 5 through a liquid inlet pipe 6, discharging the absorbent through a liquid outlet pipe 4, spraying the absorbent through a spray head 17 after entering a water box 18, absorbing carbon dioxide in the air again, enabling the absorbent to fall into the catching box 2, enabling the falling absorbent to slide down from the top of the first inclined plate 21 and the top of the second inclined plate 28, and enabling the falling absorbent to enter one side of the fixed plate 34 through the arc-shaped hole 27;
s3, when the carbon dioxide concentration sensor 30 detects that the carbon dioxide concentration of a certain area reaches a standard, the servo motor 13 is started, the output shaft of the servo motor 13 drives the gear 20 to rotate, the gear 20 drives the first rack 19 to vertically move upwards and drives the second rack 32 to vertically move downwards, at the moment, the first rack 19 drives the first vertical plate 16 to vertically move upwards, the first vertical plate 16 drives the baffle plate 15 to vertically move upwards, the baffle plate 15 drives the push rod 22 to vertically move upwards, the baffle plate 15 blocks one end of the air inlet pipe 12 to avoid continuous air intake, meanwhile, the push rod 22 touches the elastic switch 23, at the moment, the air exhaust fan 26 is closed and does not intake air any more, and the damage of the air exhaust fan 26 is avoided;
s4, second rack 32 drives the vertical downstream of second riser 31, second riser 31 drives the vertical downstream of connecting rod 29, connecting rod 29 drives the vertical downstream of a plurality of curb plates 14, separate the absorbent of fixed plate 34 one side, connecting rod 29 drives the vertical downstream of sliding plate 33 and plugs up arc hole 27, open corresponding solenoid valve 10, make the absorbent that carbon dioxide concentration reaches the standard discharge through fluid-discharge tube 9 and enter the inside of temporary storage box 8, keep in, put the back, make servo motor 13' S output shaft reversal, resume the device to initial position, continue to admit air, the absorbent that shower nozzle 17 spun simultaneously can supply exhaust absorbent, be convenient for continuously use.
However, as is well known to those skilled in the art, the working principle and the wiring method of the ventilator 26, the water pump 5, the carbon dioxide sensor 30, the elastic switch 23, the servo motor 13 and the solenoid valve 10 are common and are conventional means or common knowledge, and thus they will not be described herein again, and those skilled in the art can make any choice according to their needs or convenience.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.
Claims (9)
1. The efficient capturing device for the medium-high concentration carbon dioxide comprises a capturing box (2) and is characterized in that four corners of the bottom of the capturing box (2) are fixedly connected with supporting legs (1), the top of the capturing box (2) is fixedly communicated with an exhaust pipe (3), one side of the capturing box (2) is fixedly communicated with an air inlet pipe (12), an air exhaust fan (26) is arranged inside the air inlet pipe (12), a plurality of carbon dioxide concentration sensors (30) are arranged on the inner wall of one side of the capturing box (2), a temporary storage box (8) is arranged on one side of the capturing box (2), the capturing box (2) is fixedly communicated with the temporary storage box (8) through a liquid discharge pipe (9), an electromagnetic valve (10) is arranged on the liquid discharge pipe (9), and a filtering component for filtering air is arranged at one end of the air inlet pipe (12);
a second inclined plate (28) is fixedly connected to the inner wall of the bottom of the catching box (2), a fixing plate (34) is fixedly connected to the top of the second inclined plate (28), a plurality of arc-shaped holes (27) are formed in one side of the fixing plate (34), and a plugging assembly for plugging the arc-shaped holes (27) is slidably connected to one side of the fixing plate (34);
the top of the catching box (2) is provided with a liquid supply assembly for feeding absorbent;
the inner wall of one side of the catching box (2) is connected with a baffle (15) in a sliding mode, the baffle (15) is matched with an air inlet pipe (12) for use, and a control assembly for controlling an air exhaust fan (26) is arranged at the top of the baffle (15);
and a lifting component for driving the baffle (15) to lift is arranged on one side of the catching box (2).
2. The efficient capturing device for the medium and high concentration carbon dioxide according to claim 1, characterized in that the filtering component comprises a threaded sleeve (11) which is sleeved on the outer wall of the air inlet pipe (12), a filter screen (25) is placed inside the threaded sleeve (11), and the filter screen (25) is matched with the air inlet pipe (12) for use.
3. The high-efficiency capturing device for the medium-high concentration carbon dioxide according to claim 1, characterized in that the blocking assembly comprises a connecting rod (29) slidably connected to one side of a fixed plate (34), a plurality of side plates (14) are fixedly connected to the bottom of the connecting rod (29), a plurality of sliding plates (33) are fixedly connected to the bottom of the connecting rod (29), and the sliding plates (33) are matched with the arc-shaped holes (27).
4. The high-efficiency capturing device for the medium-high concentration carbon dioxide as claimed in claim 1, wherein the liquid supply assembly comprises a water pump (5) fixedly connected to the top of the capturing tank (2), an absorbent tank (7) is arranged on one side of the capturing tank (2), a liquid inlet of the water pump (5) is fixedly communicated with a liquid inlet pipe (6), the bottom of the liquid inlet pipe (6) extends into the absorbent tank (7), a liquid outlet of the water pump (5) is fixedly communicated with a liquid outlet pipe (4), one end of the liquid outlet pipe (4) penetrates through the capturing tank (2) and is fixedly communicated with a water box (18), the water box (18) is fixedly connected to the inner wall of the top of the capturing tank (2), and the bottom of the water box (18) is fixedly communicated with a plurality of nozzles (17).
5. The high-efficiency capturing device for medium-high concentration carbon dioxide as claimed in claim 1, wherein the control assembly comprises a push rod (22) fixedly connected to the top of the baffle (15), a waterproof box (24) is fixedly connected to the inner wall of one side of the capturing box (2), an elastic switch (23) is fixedly connected to the inner wall of the top of the waterproof box (24), the elastic switch (23) is matched with the push rod (22) for use, and the elastic switch (23) is electrically connected with an air draft fan (26).
6. The high-efficiency capturing device for middle and high concentration carbon dioxide according to claim 1, characterized in that the lifting assembly comprises a servo motor (13) fixedly connected to one side of the capturing box (2), an output shaft of the servo motor (13) penetrates through the capturing box (2) and is fixedly connected with a gear (20), a first vertical plate (16) is fixedly connected to the top of the baffle (15), and a first rack (19) meshed with the gear (20) is fixedly connected to one side of the first vertical plate (16).
7. The high-efficiency capturing device for the medium and high concentration carbon dioxide according to claim 3, characterized in that a transverse plate (35) is fixedly connected to the top of the fixing plate (34), a first inclined plate (21) is fixedly connected to the top of the transverse plate (35), a second vertical plate (31) is fixedly connected to the top of the connecting rod (29), the second vertical plate (31) penetrates through the transverse plate (35) and the first inclined plate (21) in a sliding manner and is fixedly connected with a second rack (32), and the second rack (32) is meshed with the gear (20).
8. The high efficiency capture device for middle and high concentration carbon dioxide according to claim 3, characterized in that the bottom of the side plate (14) is inclined and used with the second inclined plate (28).
9. The high-efficiency capture method for medium and high concentration carbon dioxide according to any one of claims 1 to 8, characterized by comprising the following steps:
s1, starting an air draft fan (26), sucking air into the interior of the collection box (2) through a threaded sleeve (11) and an air inlet pipe (12) by the air draft fan (26), enabling the bottom of the air inlet pipe (12) to enter an absorbent in the collection box (2), enabling carbon dioxide to rise after being absorbed by the absorbent for the first time, and discharging the carbon dioxide through an exhaust pipe (3);
s2, in the ascending process, starting a water pump (5), sucking the absorbent in an absorbent box (7) by the water pump (5) through a liquid inlet pipe (6), discharging the absorbent through a liquid outlet pipe (4), spraying the absorbent through a spray head (17) after entering a water box (18), absorbing carbon dioxide in the air again, and dropping into the capturing box (2), wherein the dropped absorbent slides down through the top of a first inclined plate (21) and the top of a second inclined plate (28) and enters one side of a fixed plate (34) through an arc-shaped hole (27);
s3, when the carbon dioxide concentration sensor (30) detects that the concentration of carbon dioxide in a certain area reaches a standard, the servo motor (13) is started, an output shaft of the servo motor (13) drives the gear (20) to rotate, the gear (20) drives the first rack (19) to vertically move upwards and drives the second rack (32) to vertically move downwards, at the moment, the first rack (19) drives the first vertical plate (16) to vertically move upwards, the first vertical plate (16) drives the baffle (15) to vertically move upwards, the baffle (15) drives the push rod (22) to vertically move upwards, the baffle (15) blocks one end of the air inlet pipe (12) to avoid continuous air intake, meanwhile, the push rod (22) triggers the elastic switch (23), at the moment, the air exhaust fan (26) is closed, air intake is not performed, and the damage of the air exhaust fan (26) is avoided;
s4, the second rack (32) drives the second vertical plate (31) to vertically move downwards, the second vertical plate (31) drives the connecting rod (29) to vertically move downwards, the connecting rod (29) drives the side plates (14) to vertically move downwards, the absorbent on one side of the fixing plate (34) is separated, the connecting rod (29) drives the sliding plate (33) to vertically move downwards and plug the arc-shaped hole (27), the corresponding electromagnetic valve (10) is opened, the absorbent with the carbon dioxide concentration reaching the standard is discharged into the temporary storage box (8) through the liquid discharge pipe (9) for temporary storage, after the storage is finished, the output shaft of the servo motor (13) is reversely rotated, the device is restored to the initial position, air continues to be introduced, and meanwhile, the absorbent sprayed by the spray head (17) can supplement the discharged absorbent, and the continuous use is facilitated.
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