CN112758933A - Carbon dioxide recycling system and method - Google Patents
Carbon dioxide recycling system and method Download PDFInfo
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- CN112758933A CN112758933A CN202011496800.9A CN202011496800A CN112758933A CN 112758933 A CN112758933 A CN 112758933A CN 202011496800 A CN202011496800 A CN 202011496800A CN 112758933 A CN112758933 A CN 112758933A
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- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 title claims abstract description 288
- 239000001569 carbon dioxide Substances 0.000 title claims abstract description 144
- 229910002092 carbon dioxide Inorganic materials 0.000 title claims abstract description 144
- 238000004064 recycling Methods 0.000 title claims abstract description 27
- 238000000034 method Methods 0.000 title claims abstract description 11
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 claims abstract description 72
- 239000003546 flue gas Substances 0.000 claims abstract description 72
- 238000003860 storage Methods 0.000 claims abstract description 53
- 238000000926 separation method Methods 0.000 claims abstract description 31
- 238000000605 extraction Methods 0.000 claims abstract description 25
- 238000006477 desulfuration reaction Methods 0.000 claims abstract description 14
- 230000023556 desulfurization Effects 0.000 claims abstract description 14
- 238000001816 cooling Methods 0.000 claims description 59
- 239000007789 gas Substances 0.000 claims description 49
- 239000000779 smoke Substances 0.000 claims description 47
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 35
- 238000012544 monitoring process Methods 0.000 claims description 33
- 238000000746 purification Methods 0.000 claims description 24
- 235000019504 cigarettes Nutrition 0.000 claims description 22
- 239000000428 dust Substances 0.000 claims description 20
- 239000000498 cooling water Substances 0.000 claims description 17
- 238000007599 discharging Methods 0.000 claims description 16
- 238000011084 recovery Methods 0.000 claims description 14
- 238000001514 detection method Methods 0.000 claims description 12
- 238000013500 data storage Methods 0.000 claims description 9
- 238000004891 communication Methods 0.000 claims description 6
- 238000001914 filtration Methods 0.000 claims description 6
- 239000002912 waste gas Substances 0.000 claims description 6
- 230000003009 desulfurizing effect Effects 0.000 claims description 5
- 230000007613 environmental effect Effects 0.000 claims description 4
- 238000005086 pumping Methods 0.000 claims description 2
- 238000007781 pre-processing Methods 0.000 abstract description 5
- 239000002699 waste material Substances 0.000 abstract description 3
- 241000208125 Nicotiana Species 0.000 description 6
- 235000002637 Nicotiana tabacum Nutrition 0.000 description 6
- 238000004880 explosion Methods 0.000 description 4
- 239000003517 fume Substances 0.000 description 4
- 238000013022 venting Methods 0.000 description 4
- 230000009286 beneficial effect Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 230000029553 photosynthesis Effects 0.000 description 3
- 238000010672 photosynthesis Methods 0.000 description 3
- 239000000243 solution Substances 0.000 description 3
- 239000013589 supplement Substances 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 239000000284 extract Substances 0.000 description 2
- 239000002803 fossil fuel Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000007769 metal material Substances 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 239000003595 mist Substances 0.000 description 2
- 238000012546 transfer Methods 0.000 description 2
- 241000196324 Embryophyta Species 0.000 description 1
- 241000282414 Homo sapiens Species 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000003034 coal gas Substances 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 238000011049 filling Methods 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000003345 natural gas Substances 0.000 description 1
- 238000013021 overheating Methods 0.000 description 1
- 239000003209 petroleum derivative Substances 0.000 description 1
- 238000012805 post-processing Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000008929 regeneration Effects 0.000 description 1
- 238000011069 regeneration method Methods 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000010792 warming Methods 0.000 description 1
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- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B32/00—Carbon; Compounds thereof
- C01B32/50—Carbon dioxide
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01G—HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
- A01G7/00—Botany in general
- A01G7/02—Treatment of plants with carbon dioxide
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01G—HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
- A01G9/00—Cultivation in receptacles, forcing-frames or greenhouses; Edging for beds, lawn or the like
- A01G9/18—Greenhouses for treating plants with carbon dioxide or the like
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
-
- 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
-
- 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
- B01D53/002—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 condensation
-
- 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
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/46—Removing components of defined structure
- B01D53/48—Sulfur compounds
-
- 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
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- 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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/151—Reduction of greenhouse gas [GHG] emissions, e.g. CO2
-
- 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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P60/00—Technologies relating to agriculture, livestock or agroalimentary industries
- Y02P60/20—Reduction of greenhouse gas [GHG] emissions in agriculture, e.g. CO2
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- General Chemical & Material Sciences (AREA)
- Environmental Sciences (AREA)
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- Health & Medical Sciences (AREA)
- Cultivation Of Plants (AREA)
- Environmental & Geological Engineering (AREA)
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Abstract
The invention provides a carbon dioxide recycling system and a carbon dioxide recycling method, belongs to the technical field of flue gas treatment and recycling, and comprises an air extraction device, a pretreatment device, a separation device, a storage unit, a cultivation greenhouse and a conveying unit. Wherein in air exhaust device with the flue gas suction preprocessing device, get into separator after preprocessing device cools off to filter and the desulfurization and deposit storage unit with carbon dioxide separation in, the other cultivation big-arch shelter that is provided with of storage unit reduces flue gas transport and pipeline waste, and carbon dioxide in will storage unit is carried to supplying to cultivate the crops in the big-arch shelter to use according to the carbon dioxide content of cultivating in the big-arch shelter, can the carbon dioxide resource in the rational utilization flue gas, reduces the pollution of flue gas to the atmosphere.
Description
Technical Field
The invention belongs to the technical field of flue gas treatment and recovery, and particularly relates to a carbon dioxide recovery and reuse system and a carbon dioxide recovery and reuse method.
Background
At present, the amount of carbon dioxide discharged to the atmosphere by burning various fossil fuels (such as coal, petroleum and natural gas) reaches 185-242 hundred million t/a, the annual consumption amount of the utilized fossil fuels is less than 1 hundred million t/a, so that not only is the waste of carbon dioxide resources caused, but also the global warming tendency of human beings to live is aggravated, and in the aspects of electric energy conversion and industrial production, the emission amount of carbon dioxide is extremely high, so that the control of the emission amount of carbon dioxide, the recovery, fixation, utilization and recycling of the emitted carbon dioxide become problems to be paid attention urgently; at present, in the planting process of the agricultural greenhouse, plants growing in the greenhouse need a large amount of carbon dioxide for photosynthesis, but the existing gas supply system cannot directly supply carbon dioxide for the agricultural cultivation greenhouse in a short time, so that the photosynthesis cannot be carried out due to too low carbon dioxide, and the growth of crops is influenced.
Disclosure of Invention
The invention aims to provide a carbon dioxide recycling system and a carbon dioxide recycling method, and aims to solve the problems that in the prior art, carbon dioxide in flue gas is difficult to recycle, and direct supply of carbon dioxide to an agricultural cultivation greenhouse in a short time cannot be realized in the agricultural greenhouse.
In order to achieve the purpose, the invention adopts the technical scheme that: provided is a carbon dioxide recovery and reuse system comprising:
the air extracting device is used for extracting smoke;
the pretreatment device is communicated with the air extraction device and is used for filtering and desulfurizing the flue gas;
the separation device is communicated with the outlet of the pretreatment device and is used for separating carbon dioxide in the flue gas;
the storage unit is communicated with the outlet pipeline of the separation device and is used for storing the carbon dioxide separated by the separation device;
the cultivation greenhouse is communicated with the storage unit pipeline and is used for cultivating crops; and
and the conveying unit is arranged between the storage unit and the cultivation greenhouse and is used for conveying the carbon dioxide in the storage unit into the cultivation greenhouse.
As another embodiment of the present application, the carbon dioxide recycling system further includes:
the control unit is electrically connected with the control ends of the conveying unit and the separating device and is used for controlling the running states of the conveying unit and the separating device; and
the monitoring unit is arranged in the cultivation greenhouse and electrically connected with the control unit for detecting the content of carbon dioxide in the cultivation greenhouse.
As another embodiment of the present application, the preprocessing apparatus includes:
the dust removal unit is communicated with the air extraction device and is used for removing dust in the flue gas;
the flue gas desulfurization unit is arranged between the dust removal unit and the separation device; and
and the cooling unit is arranged between the dust removal unit and the air extraction device.
As another embodiment of the present application, the cooling unit includes:
the number of the thin smoke pipes is multiple, the thin smoke pipes are arranged in parallel at intervals, and the thin smoke pipes are arranged between the dust removal unit and the air extraction device;
the cigarette inlet box is arranged at the inlet of the thin cigarette pipe and is used for conveying smoke into the thin cigarette pipe;
the cigarette discharging box is arranged at the outlet of the thin cigarette pipe and is used for discharging smoke from the thin cigarette pipe; and
a plurality of cooling pipes, wherein the cooling pipes are wound on the circumference of the thin smoke pipe.
As another embodiment of the present application, the cooling unit further includes:
the water inlet pipeline is arranged at the water inlet of the cooling pipe, is connected with the cooling pipe pipeline and is used for conveying cooling water to the cooling pipe;
the water outlet pipeline is arranged at the water outlet of the cooling pipe, is connected with the cooling pipe pipeline and is used for outputting cooling water in the cooling pipe; and
and the air cooler is arranged between the water inlet pipeline and the water outlet pipeline and is used for cooling the cooling water output by the water outlet pipeline.
As another embodiment of the present application, the separation device includes:
the purification unit is communicated with the flue gas desulfurization unit and is used for extracting carbon dioxide in the flue gas;
the conveying pipeline is arranged between the purification unit and the storage unit and is used for conveying the carbon dioxide to the storage unit;
the smoke discharging tower is communicated with the purification unit pipeline and is used for discharging redundant waste gas;
and the axial flow fan is arranged between the purification unit and the smoke exhaust tower and used for conveying the waste gas into the smoke exhaust tower.
As another embodiment of the present application, the conveying unit includes:
the communication pipeline is arranged between the storage unit and the cultivation greenhouse and is used for conveying the carbon dioxide gas in the storage unit into the cultivation greenhouse; and
and the switch conveying element is arranged on the communicating pipeline, is electrically connected with the control unit and is used for controlling the carbon dioxide gas in the storage unit to be conveyed into the cultivation greenhouse.
As another embodiment of the present application, the carbon dioxide recycling system further includes:
the wireless module is electrically connected with the control unit and used for receiving or transmitting signals;
the remote controller is electrically connected with the wireless module and is used for remotely observing the detection data and controlling the control unit;
the data storage module is electrically connected with the control unit and used for the control unit to call the environmental data in the cultivation greenhouse and store the detection data of the detection unit; and
and the power supply module is used for transmitting power to the control unit.
As another embodiment of the present application, the detection module includes:
the carbon dioxide detector is used for detecting the content of carbon dioxide in the cultivation greenhouse;
the temperature and humidity sensor is used for monitoring the temperature and the humidity in the cultivation greenhouse; and
and the ultraviolet sensor is used for monitoring the ultraviolet numerical value in the cultivation greenhouse.
The carbon dioxide recycling system provided by the invention has the beneficial effects that: compared with the prior art, the system is communicated with a pretreatment device through an air exhaust device, the pretreated gas enters a separation device, the separation device is connected with a storage unit, the storage unit is communicated with the cultivation greenhouse through a conveying unit, the carbon dioxide recycling system can suck the flue gas into the pretreatment device through the air exhaust device, the flue gas enters the separation device after being cooled, filtered, dedusted and desulfurized through the pretreatment device, the separation device separately separates and extracts the carbon dioxide gas in the flue gas and conveys the carbon dioxide gas to the storage unit, the cultivation greenhouse is arranged beside the storage unit and is communicated with the cultivation greenhouse, the carbon dioxide conveying cost and the pipeline erection cost are reduced, the conveying unit can be monitored according to the carbon dioxide gas in the cultivation greenhouse so as to control the conveying unit to convey the carbon dioxide gas in the storage unit to the cultivation greenhouse, through the arrangement, the carbon dioxide in the flue gas can be extracted and separated, and the carbon dioxide in the flue gas waste gas can be quickly and fully utilized.
The invention also provides a method for recycling the carbon dioxide in the flue gas, which is characterized by comprising the following steps of:
step a: pumping the flue gas into the pretreatment unit through an air extractor;
step b: preliminarily filtering, cooling and desulfurizing the extracted flue gas through a pretreatment unit;
step c: extracting carbon dioxide gas in the flue gas through a purification unit and conveying the carbon dioxide gas to a storage unit, and discharging redundant gas through a smoke discharging tower;
step d: the monitoring unit monitors the content of carbon dioxide in the cultivation greenhouse and feeds back information to the control unit;
step e: the control unit controls the conveying unit to input carbon dioxide gas into the cultivation greenhouse according to the monitoring of the monitoring unit on the carbon dioxide content in the cultivation greenhouse.
The method for recycling the carbon dioxide in the flue gas has the beneficial effects that: compared with the prior art, flue gas that produces in to the production process through the preprocessing unit cools off, after filtration and the desulfurization, the purification unit is separating the carbon dioxide in the mist, the carbon dioxide of separation gets into the memory cell and saves, cultivate the carbon dioxide content data in the big-arch shelter through the monitoring unit monitoring and monitor feedback to the control unit, carry carbon dioxide gas in to the big-arch shelter through the control unit control conveying unit, can control conveying unit and carry in to the big-arch shelter according to the demand volume of the carbon dioxide gas in the big-arch shelter, make the carbon dioxide gas who draws in the flue gas obtain abundant utilization, the utilization ratio of carbon dioxide gas in the flue gas has been improved.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed for the embodiments or the prior art descriptions will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.
FIG. 1 is a schematic diagram of a carbon dioxide recycling system according to an embodiment of the present invention;
FIG. 2 is a schematic structural view of a cooling jacket according to an embodiment of the present invention;
fig. 3 is a schematic control flow diagram according to an embodiment of the present invention.
In the figure: 1. an air extraction device; 111. an explosion venting valve; 2. a pretreatment device; 21. a dust removal unit; 22. a flue gas desulfurization unit; 23. a cooling unit; 231. a thin smoke tube; 232. a cigarette feeding box; 233. a cigarette discharging box; 234. a cooling tube; 235. a water inlet pipeline; 236. a water outlet pipeline; 237. an air cooler; 3. a separation device; 31. a purification unit; 32. a delivery line; 33. a fume extractor; 34. an axial flow fan; 4. a storage unit; 5. cultivating a greenhouse; 51. a fresh air ventilator; 52. a greenhouse light supplement lamp; 6. a conveying unit; 61. a communicating pipeline; 62. a switching conveying element; 7. a control unit; 8. a monitoring unit; 81. a carbon dioxide detector; 82. a temperature and humidity sensor; 83. an ultraviolet sensor; 9. a wireless module; 10. a remote controller; 11. a data storage module; 12. and a power supply module.
Detailed Description
In order to make the technical problems, technical solutions and advantageous effects to be solved by the present invention more clearly apparent, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Referring to fig. 1 and 3 together, a carbon dioxide recycling system according to the present invention will now be described. The carbon dioxide recycling system comprises an air extraction device 1, a pretreatment device 2, a separation device 3, a storage unit 4, a cultivation greenhouse 5 and a conveying unit 6. The air extraction device 1 is used for extracting flue gas; the pretreatment device 2 is communicated with the air extraction device 1 and is used for filtering and desulfurizing the flue gas; the separation device 3 is communicated with an outlet of the pretreatment device 2 and is used for separating carbon dioxide in the flue gas; the storage unit 4 is communicated with an outlet pipeline of the separation device 3 and is used for storing the carbon dioxide separated by the separation device 3; the cultivation greenhouse 5 is communicated with the storage unit 4 through pipelines and is used for cultivating crops; and a delivery unit 6 provided between the storage unit 4 and the cultivation greenhouse 5 for delivering the carbon dioxide in the storage unit 4 into the cultivation greenhouse 5.
Compared with the prior art, the carbon dioxide recycling system provided by the embodiment is characterized in that the air extractor 1 is communicated with the pretreatment device 2, the pretreated gas enters the separation device 3, the separation device 3 is connected with the storage unit 4, and the storage unit 4 is communicated with the cultivation greenhouse 5 through the conveying unit 6, the carbon dioxide recycling system can pump the flue gas into the pretreatment device 2 through the air extractor 1, the flue gas is cooled, filtered, dedusted and desulfurized through the pretreatment device 2 and then enters the separation device 3, the separation device 3 is used for separately separating, extracting and conveying the carbon dioxide gas in the flue gas to the storage unit 4, the cultivation greenhouse 5 is arranged beside the storage unit 4 and is communicated with the cultivation greenhouse 5, the carbon dioxide conveying cost and the pipeline erection cost are reduced, and the monitoring can be carried out according to the carbon dioxide gas in the cultivation greenhouse 5 so as to control the conveying unit 6 to convey the carbon dioxide gas in the storage unit 4 Send to in cultivating big-arch shelter 5, can extract the separation with the carbon dioxide gas in the flue gas through above setting, carbon dioxide gas in the flue gas waste gas of can be quick, abundant utilization.
In this embodiment, an explosion venting valve 111 is further disposed above the smoke tube behind the air extractor 1, and the explosion venting valve 111 is used for opening the explosion venting valve 111 when the pressure in the smoke tube is too high to release the pressure in the smoke tube, and after the pressure release is completed, the smoke tube is sealed due to the self-gravity action, so as to protect the smoke tube from pressure.
Referring to fig. 1, the carbon dioxide recycling system further includes a control unit 7 and a monitoring unit 8. The control unit 7 is electrically connected with the conveying unit 6 and the control end of the separating device 3 and is used for controlling the running states of the conveying unit 6 and the separating device 3; and the monitoring unit 8 is arranged in the cultivation greenhouse 5 and is electrically connected with the control unit 7 for detecting the content of carbon dioxide in the cultivation greenhouse 5. The control unit 7 is used for controlling the setting and adjustment of carbon dioxide in the flue gas by the separation device 3 in various parameters in the extraction process, meanwhile, the control unit 7 is also used for controlling the conveying unit 6 to convey carbon dioxide gas into the cultivation greenhouse 5, so that the system can fully control the extraction and the conveying of the carbon dioxide, the controllability of the system is more extensive and flexible, the monitoring unit 8 is used for monitoring the planting environment and the content of the carbon dioxide in the cultivation greenhouse 5, the carbon dioxide in the storage unit 4 is controlled to stop the conveyor in the cultivation greenhouse 5 by controlling the conveying unit 6 when the carbon dioxide in the cultivation greenhouse 5 reaches the lowest value and the highest value by setting the content value region, and the separated carbon dioxide can be fully utilized.
Referring to fig. 1, the pretreatment device 2 includes a dust removal unit 21, a flue gas desulfurization unit 22, and a cooling unit 23. The dust removal unit 21 is communicated with the air extraction device 1 and is used for removing dust in the flue gas; the flue gas desulfurization unit 22 is arranged between the dust removal unit 21 and the separation device 3; and a cooling unit 23 is provided between the dust removing unit 21 and the air-extracting device 1. The dust removal unit 21 is communicated with the pipeline of the air extraction device 1, so that the content of the particulate matters in the extracted smoke can be reduced to 100mg/m3Then the flue gas is conveyed into a flue gas desulfurization unit 22 to be desulfurized, a cooling unit 23 is arranged between a dust removal unit 21 and the air extraction device 1, the flue gas which is just extracted by the air extraction device 1 is cooled, the temperature of the cooled flue gas is reduced to below 60 degrees, and the high temperature is prevented from carrying out post-treatment on the flue gasCausing damage.
In this embodiment, can increase one set of cooling unit 23 between dust removal unit 21 and flue gas desulfurization unit 22, can make the flue gas further cool off, reduce to cause because of the flue gas cooling is not enough to cause the damage to the post processing device, improve the security of later stage flue gas to flue gas desulfurization unit 22 and separator 3.
Referring to fig. 1 and 2 together, the cooling unit 23 includes a thin smoke tube 231, a smoke inlet box 232, a smoke outlet box 233 and a cooling tube 234. The number of the fine smoke pipes 231 is multiple, the plurality of fine smoke pipes 231 are arranged in parallel at intervals, and the plurality of fine smoke pipes 231 are all arranged between the dust removal unit 21 and the air extraction device 1; the cigarette inlet box 232 is arranged at the inlet of the thin cigarette pipe 231 and used for conveying smoke into the thin cigarette pipe 231; the cigarette outlet box 233 is arranged at the outlet of the thin cigarette pipe 231 and is used for discharging smoke from the thin cigarette pipe 231; and the number of the cooling pipes 234 is plural, and the cooling pipes 234 are wound around the circumference of the fine smoke pipe 231. The flue gas is shunted into a plurality of thin tobacco pipes 231 through cigarette case 232 into, a plurality of thin tobacco pipes 231 and a plurality of cooling tube 234 intertwine set up, increase the area of contact of thin tobacco pipe 231 and cooling tube 234, can increase the cooling water and discharge through cigarette case 233 after the cooling to thin tobacco pipe 231, thin tobacco pipe 231 and cooling tube 234's setting, can guarantee that the flue gas can obtain abundant cooling and handle, thin tobacco pipe 231 and cooling tube 234 intertwine set up simultaneously and make flue gas and cooling water contactless, can effectively avoid the cooling water in cooling tube 234 to cause the pollution, prolong the life of cooling water.
In this embodiment, the thin smoke tube 231 and the cooling tube 234 are made of metal materials, and the heat transfer speed of the metal materials is high, so that the heat of the smoke in the thin smoke tube 231 can be accelerated to be transferred to the cooling tube 234, and the cooling efficiency of the cooling unit 23 on the smoke extracted by the air extraction device 1 is improved.
Referring to fig. 1 and 2 together, as a specific embodiment of the carbon dioxide recycling system provided by the present invention, the cooling unit 23 further includes a water inlet pipeline 235, a water outlet pipeline 236, and an air cooler 237. The water inlet pipeline 235 is arranged at the water inlet of the cooling pipe 234, is connected with the cooling pipe 234 through a pipeline, and is used for conveying cooling water to the cooling pipe 234; the water outlet pipeline 236 is arranged at the water outlet of the cooling pipe 234, is connected with the cooling pipe 234 through a pipeline, and is used for outputting cooling water in the cooling pipe 234; and an air cooler 237 is disposed between the water inlet conduit 235 and the water outlet conduit 236 for cooling the cooling water output by the water outlet conduit 236. The water inlet end of the water inlet pipeline 235 is connected with a water pump, the water inlet end of the water pump is connected with the water outlet pipeline 236, cooling water circulates between the water inlet pipeline 235 and the water outlet pipeline 236, the water inlet pipeline 235 and the water outlet pipeline 236 are connected with an air cooler 237 through a tee joint, the air cooler 237 is used for cooling water in the pipelines, the cooling water is prevented from overheating and failing to reach an expected cooling effect after the cooling time is too long, a check valve is further connected to an air outlet pipe of the air cooler 237, and the cooling water is prevented from being damaged by flowing back to the air cooler 237.
Referring to fig. 1, the separation device 3 includes a purification unit 31, a conveying pipeline 32, a smoke exhaust tower 33, and an axial flow fan 34. The purification unit 31 is communicated with the flue gas desulfurization unit 22 and is used for extracting carbon dioxide in the flue gas; a transfer line 32 is provided between purification unit 31 and storage unit 4 for transferring carbon dioxide to storage unit 4; the fume extraction tower 33 is in pipeline communication with the purification unit 31 for removing excess exhaust gases; an axial fan 34 is provided between the purification unit 31 and the fume extractor 33 for feeding the exhaust gases into the fume extractor 33; the desulfurized flue gas enters a purification unit 31, and the purification unit 31 carries out purification treatment of pressurization, injection, absorption, lean-rich solution heat exchange, regeneration, condensation and drying on the carbon dioxide in the mixed gas, and then conveys the extracted carbon dioxide to a storage unit 4 for storage through a conveying pipeline 32; other redundant gases are generated in the carbon dioxide extraction process, the other gases are discharged into the smoke exhaust tower 33 through the axial flow fan 34 and are exhausted, the purification unit 31 is electrically connected with the control unit 7, and the control unit 7 controls various parameters of the purification unit 31, so that the normal extraction of the carbon dioxide in the smoke is ensured, and the extraction amount of the carbon dioxide in the smoke can be controlled in real time.
Referring to fig. 1, as an embodiment of the carbon dioxide recycling system provided by the present invention, the conveying unit 6 includes a communicating pipe 61 and a switching conveying element 62. The communication pipeline 61 is arranged between the storage unit 4 and the cultivation greenhouse 5 and is used for conveying the carbon dioxide gas in the storage unit 4 into the cultivation greenhouse 5; the switch conveying element 62 is arranged on the communication pipeline 61, is electrically connected with the control unit 7 and is used for controlling the carbon dioxide gas in the storage unit 4 to be conveyed into the cultivation greenhouse 5; the storage unit 4 is communicated with the cultivation greenhouse 5 through the communication pipeline 61, the effect of controlling the carbon dioxide gas delivery switch to the cultivation greenhouse 5 is achieved through monitoring the carbon dioxide content in the cultivation greenhouse 5 under the control of the switch delivery element 62, and the switch delivery element 62 can be an air circuit electromagnetic valve or a metering air inlet pump and is mainly used for controlling the carbon dioxide gas in the storage unit 4 to be delivered into the cultivation greenhouse 5.
Referring to fig. 1 and 3, the carbon dioxide recycling system further includes a wireless module 9, a remote controller 10, a data storage module 11, and a power supply module 12. The wireless module 9 is electrically connected with the control unit 7 and used for receiving or transmitting signals; the remote controller 10 is electrically connected with the wireless module 9 and is used for remotely observing the detection data and controlling the control unit 7; the data storage module 11 is electrically connected with the control unit 7 and is used for the control unit 7 to call the environmental data in the cultivation greenhouse 5 and store the detection data of the detection unit; and a power supply module 12 for supplying power to the control unit 7. The wireless module 9 is electrically connected with the remote controller 10, the remote monitoring and control of the field detection condition can be realized, the remote controller 10 can remotely adjust preset parameters and control the working state of the separating device 3 and the conveying unit 6 according to the actual field condition, the remote operation can be conveniently carried out by workers at a remote place, unnecessary labor waste caused by frequently observing the field and updating the field data is reduced, the preset data can be stored by the data storage module 11, the control unit 7 can fetch and store regional values with different carbon dioxide content according to different varieties of planted crops in the cultivation greenhouse 5, the stored data in the data storage module 11 can be directly fetched and updated when the crops are changed at a later stage, the growth of the crops is facilitated, and the power supply module 12 is connected with an external power supply to have the power storage function, the power supply device is used for ensuring the power supply of the control unit 7, the monitoring unit 8, the wireless module 9 and the data storage module 11, preventing the control of the control unit 7 and the monitoring unit 8 from being incapable of being monitored after external power failure, preventing the data of the data storage module 11 from being lost and improving the use safety.
Referring to fig. 1 and 3 together, as an embodiment of the carbon dioxide recycling system provided by the present invention, the monitoring unit 8 includes a carbon dioxide detector 81, a temperature and humidity sensor 82, and an ultraviolet sensor 83. The carbon dioxide detector 81 is used for detecting the content of carbon dioxide in the cultivation greenhouse 5; the temperature and humidity sensor 82 is used for monitoring the temperature and the humidity in the cultivation greenhouse 5; and an ultraviolet sensor 83 for monitoring the ultraviolet value in the cultivation greenhouse 5. The carbon dioxide detector 81 and the ultraviolet sensor 83 are electrically connected with the control unit 7, and the control unit 7 is used for feeding back information to the control unit 7 after the environmental value in the cultivation greenhouse 5 exceeds the preset value through presetting the ultraviolet intensity range, the temperature range and the humidity range value in the cultivation greenhouse 5 in the control unit 7, so that the control unit 7 works and provides effective basis for the control unit 7 to control the planting environment in the cultivation greenhouse 5.
In this embodiment, a greenhouse light supplement lamp 52 and a fresh air ventilator 51 are further disposed in the cultivation greenhouse 5, and the greenhouse light supplement lamp 52 is disposed in the cultivation greenhouse 5 and electrically connected to the control unit 7; and the fresh air ventilator 51 is arranged on the side wall of the cultivation greenhouse 5, is electrically connected with the control unit 7 and is used for exhausting the gas in the cultivation greenhouse 5 outdoors. Greenhouse light filling lamp 52 is when cultivating the ultraviolet intensity in big-arch shelter 5 low through ultraviolet sensor 83 monitoring, open through the control unit 7, the ultraviolet intensity in big-arch shelter 5 is cultivated in the reinforcing, improve the photosynthesis of crops, when carbon dioxide detector 81 detects to cultivate the gas content in the big-arch shelter 5 too high, the control unit 7 control fresh air ventilator 51 is opened and is carried out the processing of taking a breath with the external world with the gas in the big-arch shelter 5 of will cultivating, guarantee to cultivate the carbon dioxide content in the big-arch shelter 5 at the default within range.
The invention also provides a method for recycling the carbon dioxide in the flue gas, which is characterized by comprising the following steps of:
step a: the flue gas is pumped into the pretreatment unit through an air extractor 1;
step b: the extracted flue gas is preliminarily filtered, cooled and desulfurized through the pretreatment unit 2;
step c: extracting carbon dioxide gas in the flue gas through a purification unit 31 and conveying the carbon dioxide gas to a storage unit 4, and discharging redundant gas through a smoke discharging tower 33;
step d: the monitoring unit 8 monitors the content of carbon dioxide in the cultivation greenhouse 5 and feeds back information to the control unit 7;
step e: the control unit 7 controls the conveying unit 6 to input the carbon dioxide gas into the cultivation greenhouse 5 according to the monitoring of the carbon dioxide content in the cultivation greenhouse 5 by the monitoring unit 8.
The method for recycling the carbon dioxide in the flue gas has the beneficial effects that: compared with the prior art, after the flue gas that produces in the production process is cooled down, filter and the desulfurization through preprocessing unit 2, purification unit 31 separates the carbon dioxide in the mist, the carbon dioxide of separation gets into storage unit 4 and stores, it monitors to feed back to control unit 7 to cultivate the carbon dioxide content data in the big-arch shelter 5 through monitoring unit 8 monitoring, carry carbon dioxide gas in 6 to the big-arch shelter of control unit 7 control conveying unit, can control conveying unit 6 to carry in the big-arch shelter according to the demand of the carbon dioxide gas in the big-arch shelter, make the carbon dioxide gas who draws in the flue gas obtain abundant utilization, the utilization ratio of carbon dioxide gas in the flue gas has been improved.
The present invention is not limited to the above preferred embodiments, and any modifications, equivalent substitutions and improvements made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. A carbon dioxide recovery and reuse system, comprising:
the air extracting device is used for extracting smoke;
the pretreatment device is communicated with the air extraction device and is used for filtering and desulfurizing the flue gas;
the separation device is communicated with the outlet of the pretreatment device and is used for separating carbon dioxide in the flue gas;
the storage unit is communicated with the outlet pipeline of the separation device and is used for storing the carbon dioxide separated by the separation device;
the cultivation greenhouse is communicated with the storage unit pipeline and is used for cultivating crops; and
and the conveying unit is arranged between the storage unit and the cultivation greenhouse and is used for conveying the carbon dioxide in the storage unit into the cultivation greenhouse.
2. The carbon dioxide recovery and reuse system according to claim 1, further comprising:
the control unit is electrically connected with the control ends of the conveying unit and the separating device and is used for controlling the running states of the conveying unit and the separating device; and
the monitoring unit is arranged in the cultivation greenhouse and electrically connected with the control unit for detecting the content of carbon dioxide in the cultivation greenhouse.
3. The carbon dioxide recovery and reuse system according to claim 2, wherein the pretreatment device includes:
the dust removal unit is communicated with the air extraction device and is used for removing dust in the flue gas;
the flue gas desulfurization unit is arranged between the dust removal unit and the separation device; and
and the cooling unit is arranged between the dust removal unit and the air extraction device.
4. The carbon dioxide recovery and reuse system according to claim 3, wherein the cooling unit includes:
the number of the thin smoke pipes is multiple, the thin smoke pipes are arranged in parallel at intervals, and the thin smoke pipes are arranged between the dust removal unit and the air extraction device;
the cigarette inlet box is arranged at the inlet of the thin cigarette pipe and is used for conveying smoke into the thin cigarette pipe;
the cigarette discharging box is arranged at the outlet of the thin cigarette pipe and is used for discharging smoke from the thin cigarette pipe; and
a plurality of cooling pipes, wherein the cooling pipes are wound on the circumference of the thin smoke pipe.
5. The carbon dioxide recovery and reuse system according to claim 4, wherein the cooling unit further comprises:
the water inlet pipeline is arranged at the water inlet of the cooling pipe, is connected with the cooling pipe pipeline and is used for conveying cooling water to the cooling pipe;
the water outlet pipeline is arranged at the water outlet of the cooling pipe, is connected with the cooling pipe pipeline and is used for outputting cooling water in the cooling pipe; and
and the air cooler is arranged between the water inlet pipeline and the water outlet pipeline and is used for cooling the cooling water output by the water outlet pipeline.
6. The carbon dioxide recovery and reuse system according to claim 3, wherein the separation device includes:
the purification unit is communicated with the flue gas desulfurization unit and is used for extracting carbon dioxide in the flue gas;
the conveying pipeline is arranged between the purification unit and the storage unit and is used for conveying the carbon dioxide to the storage unit;
the smoke discharging tower is communicated with the purification unit pipeline and is used for discharging redundant waste gas;
and the axial flow fan is arranged between the purification unit and the smoke exhaust tower and used for conveying the waste gas into the smoke exhaust tower.
7. The carbon dioxide recovery and reuse system according to claim 6, wherein the delivery unit includes:
the communication pipeline is arranged between the storage unit and the cultivation greenhouse and is used for conveying the carbon dioxide gas in the storage unit into the cultivation greenhouse; and
and the switch conveying element is arranged on the communicating pipeline, is electrically connected with the control unit and is used for controlling the carbon dioxide gas in the storage unit to be conveyed into the cultivation greenhouse.
8. The carbon dioxide recovery and reuse system according to claim 2, further comprising:
the wireless module is electrically connected with the control unit and used for receiving or transmitting signals;
the remote controller is electrically connected with the wireless module and is used for remotely observing the detection data and controlling the control unit;
the data storage module is electrically connected with the control unit and used for the control unit to call the environmental data in the cultivation greenhouse and store the detection data of the monitoring unit; and
and the power supply module is used for transmitting power to the control unit.
9. The carbon dioxide recovery and reuse system according to claim 2, wherein the monitoring unit includes:
the carbon dioxide detector is used for detecting the content of carbon dioxide in the cultivation greenhouse;
the temperature and humidity sensor is used for monitoring the temperature and the humidity in the cultivation greenhouse; and
and the ultraviolet sensor is used for monitoring the ultraviolet numerical value in the cultivation greenhouse.
10. A method for recycling carbon dioxide in flue gas is characterized by comprising the following steps:
step a: pumping the flue gas into the pretreatment unit through an air extractor;
step b: preliminarily filtering, cooling and desulfurizing the extracted flue gas through a pretreatment unit;
step c: extracting carbon dioxide gas in the flue gas through a purification unit and conveying the carbon dioxide gas to a storage unit, and discharging redundant gas through a smoke discharging tower;
step d: the detection unit detects the content of carbon dioxide in the cultivation greenhouse and feeds back information to the control unit;
step e: the control unit controls the conveying unit to input carbon dioxide gas into the cultivation greenhouse according to the detection of the monitoring unit on the content of the carbon dioxide in the cultivation greenhouse.
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Cited By (1)
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Application publication date: 20210507 |