CN114588754B - Device and method for capturing and compressing carbon dioxide in air - Google Patents
Device and method for capturing and compressing carbon dioxide in air Download PDFInfo
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- CN114588754B CN114588754B CN202210204503.5A CN202210204503A CN114588754B CN 114588754 B CN114588754 B CN 114588754B CN 202210204503 A CN202210204503 A CN 202210204503A CN 114588754 B CN114588754 B CN 114588754B
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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
- B01D53/22—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 diffusion
- B01D53/229—Integrated processes (Diffusion and at least one other process, e.g. adsorption, absorption)
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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
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
- B01D53/77—Liquid phase processes
- B01D53/78—Liquid phase processes with gas-liquid contact
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03C—MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03C3/00—Separating dispersed particles from gases or vapour, e.g. air, by electrostatic effect
- B03C3/02—Plant or installations having external electricity supply
- B03C3/04—Plant or installations having external electricity supply dry type
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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
- B01D53/22—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 diffusion
- B01D2053/221—Devices
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2256/00—Main component in the product gas stream after treatment
- B01D2256/22—Carbon dioxide
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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
- 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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- 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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Abstract
The invention relates to the field of carbon dioxide trapping, in particular to a device and a method for trapping and compressing air carbon dioxide, comprising a carbon dioxide trapping device, a carbon dioxide compressing device and a shell, wherein the carbon dioxide trapping device and the carbon dioxide compressing device are both positioned in the shell, and the carbon dioxide trapping device comprises an air trapping component: further comprises: the purification assembly is connected with the air trapping assembly and comprises a purification tank, wherein the purification tank is positioned in the shell, and the trapped carbon dioxide gas is pre-collected, so that the carbon dioxide gas is introduced into the compressor at a constant speed, and meanwhile, the traditional carbon dioxide compressor is replaced by the film type compressor, so that the problems that the traditional carbon dioxide compressor is not beneficial to controlling the compression process and meanwhile cannot meet the requirements of small-batch compression and low compression efficiency are solved.
Description
Technical Field
The invention relates to the field of carbon dioxide trapping, in particular to a device and a method for trapping and compressing air carbon dioxide.
Background
At present, the problems of melting glaciers, rising sea level and the like caused by the greenhouse effect on average temperature threaten the survival of human beings, and become a global urgent problem to be solved. Greenhouse gases this mainly includes CO2, CH4, N20, etc., where CO2 is the most dominant greenhouse gas, and the contribution rate of carbon dioxide to the greenhouse effect is up to 63% among various greenhouse gases that cause climate change to the greatest extent. Therefore, reducing the carbon dioxide emissions would be an important measure against the greenhouse effect.
With the development of modern technology, carbon dioxide can be used as a gas fertilizer and can be used for extinguishing fire, preparing a refrigerant and being used in the chemical industry as an industrial raw material, so that the importance of capturing and compressing carbon dioxide in the air is increasing;
the conventional carbon dioxide capture and compression device suffers from the following drawbacks:
1. the traditional carbon dioxide is directly led into the compressor for compression after being trapped, and because the trapping amount of the carbon dioxide is changed along with the carbon dioxide content in the flue gas, when the carbon dioxide content in the flue gas is changed greatly, the transmission amount of the carbon dioxide transmitted into the compressor is changed, so that the transmission process is a non-uniform process, while the traditional carbon dioxide compressor can be compressed only when the carbon dioxide reaches a certain content, the time for controlling the carbon dioxide compressor to work is changed along with the change of the transmission amount of the carbon dioxide transmitted into the compressor, and when the transmission amount of the carbon dioxide is a non-constant value, the control of the compression process is not facilitated, so that the practicability is not high;
2. The traditional carbon dioxide compressor can compress carbon dioxide when the carbon dioxide reaches a certain content, so that when a small amount of carbon dioxide gas is compressed, the traditional carbon dioxide compressor cannot meet the requirement, and can work only when the carbon dioxide reaches a threshold value, so that 'pressure while conveying' cannot be realized, and the working efficiency is low.
Therefore, it is necessary to invent a device and method for capturing and compressing air carbon dioxide.
Disclosure of Invention
Therefore, the invention provides a device and a method for capturing and compressing air carbon dioxide, which are used for pre-collecting captured carbon dioxide gas so as to lead the carbon dioxide gas into a compressor at a constant speed, and simultaneously, a film type compressor is adopted to replace a traditional carbon dioxide compressor, so that the problems that the traditional carbon dioxide compressor is not beneficial to controlling the compression process and meanwhile, the small-batch compression and the low compression efficiency cannot be satisfied are solved.
In order to achieve the above object, the present invention provides the following technical solutions: the device and the method for capturing and compressing the carbon dioxide in the air comprise a carbon dioxide capturing device, a carbon dioxide compressing device and a shell, wherein the carbon dioxide capturing device and the carbon dioxide compressing device are both positioned inside the shell, and the carbon dioxide capturing device comprises an air capturing component: further comprises: a purification assembly connected to the air capture assembly;
The purification assembly comprises a purification tank, the purification tank is located inside the casing, the inside saturated sodium bicarbonate solution that has filled of purification tank, the inside purifying bottle that is equipped with of purification tank, the purifying bottle is located inside the saturated sodium bicarbonate solution, the purifying bottle is equipped with the multiunit, the multiunit purifying bottle is the symmetry setting, the multiunit purifying bottle all inverts, the multiunit purifying bottle is inside all to be full of saturated sodium bicarbonate solution, purifying bottle bottleneck department joint has the jam, it has sodium bicarbonate solution conducting pipe to block up middle part joint, it has carbon dioxide admission pipe and carbon dioxide discharge pipe to block up middle part both sides respectively joint, carbon dioxide admission pipe, sodium bicarbonate solution conducting pipe and carbon dioxide discharge pipe all seal run through the jam.
Preferably, one end of the carbon dioxide inlet pipe is in contact with the bottom of the purifying bottle, the sodium bicarbonate solution conducting pipe and one end of the carbon dioxide discharge pipe are both positioned at the opening of the purifying bottle, the other end of the sodium bicarbonate solution conducting pipe is positioned inside the sodium bicarbonate solution, and a waterproof and breathable film is fixedly arranged on the inner wall of the opening of the carbon dioxide discharge pipe positioned inside the purifying bottle.
Preferably, the purification tank upper end fixed mounting has sealed baffle, form sealed interval between sealed baffle and the purification tank, multiunit the carbon dioxide admission pipe other end is fixed to run through sealed baffle, sealed baffle upper end is equipped with first carbon dioxide osmotic membrane, first carbon dioxide osmotic membrane both sides and casing both sides inner wall fixed connection, form the carbon dioxide storage area between sealed baffle and the first carbon dioxide osmotic membrane.
Preferably, the air trapping assembly comprises a supporting shell, the supporting shell is fixedly connected with the upper end of the shell, the supporting shell fixedly penetrates through the upper wall of the shell, electrostatic dust removal rods are fixedly mounted on the inner walls of the two sides of the supporting shell, multiple groups of electrostatic dust removal rods are arranged, the electrostatic dust removal rods are layered, the electrostatic dust removal rods located on the same layer are arranged in a linear array, and a second carbon dioxide permeable membrane is arranged between the electrostatic dust removal rods on two adjacent layers.
Preferably, a gas supplementing pipeline is arranged on one side of the supporting shell and is communicated with the second carbon dioxide permeable membrane positioned in the middle, a plurality of groups of negative pressure fans are fixedly arranged at the bottom of the supporting shell, and a plurality of groups of negative pressure fans are communicated with the second carbon dioxide permeable membrane positioned at the bottommost part.
Preferably, the carbon dioxide compression device comprises a film compressor, the film compressor is located inside the shell, the film compressor comprises a shell, two side inner walls of the shell are rotationally connected with the same crankshaft, two groups of connecting rods are rotationally connected to the crankshaft, the tail ends of the two groups of connecting rods are rotationally connected with sealing slide columns, and the two groups of sealing slide columns are in sealing sliding connection with the inner side walls of the shell.
Preferably, two groups of sealing slide posts upper ends are all equipped with the metal film, two groups of metal film and casing inside wall sealing fixed connection, form sealed interval between metal film and the sealing slide post, the casing upper end is equipped with two sets of air inlets and two sets of gas outlet respectively, and two sets of the air inlet all is equipped with the gas check valve with two sets of gas outlet bottom, gas check valve bottom and metal film contact, casing one side fixed mounting has servo motor, servo motor output shaft and crank axle fixed connection.
Preferably, the air outlet at the left end is fixedly provided with a secondary compression pipe, the other end of the secondary compression pipe is fixedly connected with the air inlet at the right end, a plurality of carbon dioxide discharge pipes are fixedly provided with the same pre-compression pipe, the tail end of the pre-compression pipe is fixedly connected with the air inlet at the left end, the air outlet at the right end is fixedly provided with a shunt pipe, and all pipe orifices of the shunt pipe are fixedly provided with air bottle communicating pipes.
Preferably, a heating box is fixedly arranged on one side of the shell, a plurality of groups of heating plates are arranged on the inner side wall of the heating box, a plurality of groups of carbon dioxide liquid storage bottles are clamped in the heating box, and a plurality of groups of carbon dioxide liquid storage bottle opening air pressure valves are fixedly connected with the gas cylinder communicating pipe.
Preferably, the application method for the air carbon dioxide capturing and compressing device further comprises the following specific operation steps:
s1: the negative pressure fan is turned on by a user, gas and dust in the air enter the supporting shell through the gas supplementing pipeline, meanwhile, the gas and dust in the air also enter the supporting shell from the uppermost part of the supporting shell, the electrostatic dust removing rod is electrified, the electrostatic dust removing rod adsorbs the dust in the air which is introduced into the supporting shell, meanwhile, the air passes through a plurality of layers of second carbon dioxide permeable membranes and the negative pressure fan to enter the upper part of the first carbon dioxide permeable membrane through the negative pressure generated by the negative pressure fan, other gases in the air are blocked through the permeation of the second carbon dioxide permeable membranes, the carbon dioxide gas enters the shell, the internal air pressure is increased along with the continuous accumulation of the carbon dioxide gas in the shell, and redundant carbon dioxide gas passes through the first carbon dioxide permeable membrane to enter the carbon dioxide storage area, and meanwhile, the first carbon dioxide permeable membrane has a screening effect;
S2: when the carbon dioxide gas is required to be compressed, the servo motor is opened, the output shaft of the servo motor drives the crank shaft to rotate, so that the crank shaft is forced to drive the two groups of connecting rods to rotate, and the sealing slide columns connected with the connecting rods are driven to reciprocate, so that the air pressure in the sealing intervals at the upper parts of the two groups of sealing slide columns is changed, when the sealing slide columns move downwards, the air pressure in the sealing intervals is reduced, the metal film moves, the air one-way valve in the air inlet at the left end is conducted, and negative pressure is generated in the pre-pressing pipe connected with the air inlet at the left end;
s3: the carbon dioxide in the purifying bottle enters the purifying bottle along with the accumulation of the carbon dioxide in the carbon dioxide storage area, the redundant carbon dioxide enters the purifying bottle along with the carbon dioxide entering pipe, the saturated sodium bicarbonate solution in the purifying bottle is discharged into the purifying tank through the sodium bicarbonate solution conducting pipe along with the increase of the carbon dioxide in the purifying bottle, and because the pre-pressing pipe is communicated with the carbon dioxide discharging pipe, when negative pressure is generated in the pre-pressing pipe, the carbon dioxide in the purifying bottle enters the carbon dioxide discharging pipe and the pre-pressing pipe, and therefore enters the air inlet at the left end of the film compressor, and when the carbon dioxide in the purifying bottle enters the carbon dioxide discharging pipe, the saturated sodium bicarbonate solution in the purifying tank enters the purifying bottle through the sodium bicarbonate solution conducting pipe under the action of the pressure;
S4: when the sealing slide column moves upwards, the air pressure in the sealing interval is increased, the metal film moves, the air one-way valve in the air outlet at the left end is communicated, carbon dioxide sucked on the metal film is compressed, the compressed carbon dioxide is discharged into the secondary compression pipe from the air outlet, along with the movement of the sealing slide column, the metal film at the right end performs secondary compression on the carbon dioxide introduced into the right end, and the carbon dioxide after secondary compression is discharged into the carbon dioxide liquid storage bottle through the shunt pipe and the gas bottle communicating pipe;
s5: the pressure in the carbon dioxide liquid storage bottle gradually rises along with the continuous increase of the carbon dioxide gas discharged into the carbon dioxide liquid storage bottle, when the pressure in the carbon dioxide liquid storage bottle reaches 7.14MPa, the heating plate heats the carbon dioxide liquid storage bottle, so that the temperature of the carbon dioxide gas in the carbon dioxide liquid storage bottle reaches 31.3 ℃, and the liquefaction of the gaseous carbon dioxide in the carbon dioxide liquid storage bottle can be realized, thereby realizing the storage of the carbon dioxide.
The beneficial effects of the invention are as follows:
1. the method comprises the steps that a user turns on a negative pressure fan, captures carbon dioxide in air through the dust removal effect of an electrostatic dust removal rod and the screening effect of a second carbon dioxide permeable membrane, the captured carbon dioxide is collected into a purifying bottle through a saturated sodium bicarbonate solution discharging method, then a servo motor is started to change the negative pressure in a carbon dioxide discharge pipe connected with a film type compressor and a pre-pressing pipe, so that carbon dioxide in the purifying bottle is extracted, the carbon dioxide transmission amount introduced into the film type compressor is ensured to be a fixed value, the compression process is conveniently controlled, and meanwhile, the saturated sodium bicarbonate solution in a purifying tank can clean the carbon dioxide;
2. Because the film compressor can only compress the carbon dioxide which is introduced, the compression amount of the film compressor is related to the stroke and the movement frequency of the piston, the compression amount of the film compressor can be changed by controlling the power of the servo motor, when the power of the motor is constant, the compression amount of the film compressor is constant, and because the compression amount of the film compressor is constant, the carbon dioxide can be continuously introduced into the carbon dioxide liquid storage bottle, at the moment, the air pressure in the carbon dioxide liquid storage bottle is continuously increased, when the air pressure in the carbon dioxide liquid storage bottle reaches 7.14MPa, the heating plate heats the carbon dioxide liquid storage bottle, so that the temperature of the carbon dioxide in the carbon dioxide liquid storage bottle reaches 31.3 ℃, the liquefaction of the gaseous carbon dioxide in the carbon dioxide liquid storage bottle can be realized, and the carbon dioxide can be stored while conveying and the working efficiency is improved.
Drawings
FIG. 1 is a schematic diagram of a structure provided by the present invention;
FIG. 2 is a diagram of the internal structure of the purification assembly provided by the present invention;
FIG. 3 is a view of the installation location of the sealing barrier provided by the present invention;
FIG. 4 is an internal structural view of the purifying tank provided by the invention;
FIG. 5 is a schematic diagram of a carbon dioxide compression device according to the present invention;
FIG. 6 is a schematic view of a structure of a film compressor according to the present invention;
FIG. 7 is an internal structural view of a film compressor according to the present invention;
FIG. 8 is a schematic view of an air capture assembly according to the present invention;
FIG. 9 is a cross-sectional view of an air capture assembly provided by the present invention;
fig. 10 is a schematic view of the internal structure of the purifying bottle provided by the invention.
In the figure: the carbon dioxide capturing device 100, the purification module 110, the purification tank 111, the purification bottle 112, the plug 113, the carbon dioxide inlet pipe 114, the sodium bicarbonate solution conduit 115, the carbon dioxide outlet pipe 116, the waterproof and breathable membrane 117, the sealing partition 118, the first carbon dioxide permeable membrane 119, the carbon dioxide storage area 120, the air capturing module 130, the support case 131, the gas supplementing pipe 132, the electrostatic precipitator bar 133, the second carbon dioxide permeable membrane 134, the negative pressure fan 135, the pre-compression pipe 140, the carbon dioxide compression device 200, the film compressor 210, the housing 211, the crank shaft 212, the connecting rod 213, the sealing spool 214, the metal film 215, the gas check valve 216, the gas inlet 217, the gas outlet 218, the servo motor 220, the secondary compression pipe 230, the shunt 240, the gas cylinder communicating pipe 250, the heating box 260, the heating plate 261, the carbon dioxide liquid storage bottle 270, and the housing 300.
Detailed Description
The preferred embodiments of the present invention will be described below with reference to the accompanying drawings, it being understood that the preferred embodiments described herein are for illustration and explanation of the present invention only, and are not intended to limit the present invention.
Referring to fig. 1-10, the present invention provides a device and a method for capturing and compressing carbon dioxide in air, which includes a carbon dioxide capturing device 100, a carbon dioxide compressing device 200 and a housing 300, wherein the carbon dioxide capturing device 100 and the carbon dioxide compressing device 200 are both located inside the housing 300, and the carbon dioxide capturing device 100 includes an air capturing component 130: further comprises: a purification assembly 110 coupled to the air capture assembly 130;
the purification assembly 110 comprises a purification tank 111, the purification tank 111 is positioned in a shell 300, the shell 300 provides support for the purification tank 111, saturated sodium bicarbonate solution is filled in the purification tank 111, carbon dioxide gas is insoluble in the saturated sodium bicarbonate solution, when the saturated sodium bicarbonate solution is heated and decomposed, only carbon dioxide gas is generated, other gas impurities are not generated, a purification bottle 112 is arranged in the purification tank 111, the purification tank 111 provides an installation position for the purification bottle 112, the purification bottle 112 is positioned in the saturated sodium bicarbonate solution, the purification bottle 112 is provided with a plurality of groups, the purification bottles 112 are symmetrically arranged, the plurality of groups of purification bottles 112 are inverted, because the molecular mass of the carbon dioxide gas is far smaller than that of the saturated sodium bicarbonate solution, when the carbon dioxide gas is introduced into the purification bottle 112, the carbon dioxide gas is positioned at the upper part, the saturated sodium bicarbonate solution is positioned at the lower part, therefore, the purification bottle 112 is inverted to facilitate liquid discharge, saturated sodium bicarbonate solution is filled in the purification bottle 112, a plug 113 is clamped at the bottle mouth of the purification bottle 112, a sodium bicarbonate solution guide pipe 115 is clamped at the middle part of the plug 113, a carbon dioxide inlet pipe 114 and a carbon dioxide discharge pipe 116 are respectively clamped at two sides of the middle part of the plug 113, the plug 113 provides mounting positions for the carbon dioxide inlet pipe 114, the sodium bicarbonate solution guide pipe 115 and the carbon dioxide discharge pipe 116, the carbon dioxide inlet pipe 114, the sodium bicarbonate solution guide pipe 115 and the carbon dioxide discharge pipe 116 are sealed to penetrate through the plug 113, specifically, along with the accumulation of carbon dioxide gas in the carbon dioxide storage area 120, redundant carbon dioxide gas enters the purification bottle 112 along with the carbon dioxide inlet pipe 114, and because the molecular mass of the carbon dioxide gas is far smaller than that of the saturated sodium bicarbonate solution, therefore, when carbon dioxide gas is introduced into the purifying bottle 112, the carbon dioxide gas is at the upper part, the saturated sodium bicarbonate solution is at the lower part, along with the increase of the carbon dioxide gas in the purifying bottle 112, the saturated sodium bicarbonate solution in the purifying bottle 112 is discharged into the purifying tank 111 through the sodium bicarbonate solution conduit 115 under the action of pressure, and because the pre-pressing pipe 140 is communicated with the carbon dioxide discharge pipe 116, when negative pressure is generated in the pre-pressing pipe 140, the carbon dioxide gas in the purifying bottle 112 enters into the carbon dioxide discharge pipe 116 and the pre-pressing pipe 140, and thus enters into the air inlet 217 at the left end of the film compressor 210, and when the carbon dioxide gas in the purifying bottle 112 enters into the carbon dioxide discharge pipe 116, the saturated sodium bicarbonate solution in the purifying tank 111 enters into the purifying bottle 112 through the sodium bicarbonate solution conduit 115 under the action of pressure, so as to fill the generated gaps, thereby facilitating the liquid discharge of the re-introduced carbon dioxide gas.
Further, carbon dioxide admission pipe 114 one end and the bottle bottom contact of purifying bottle 112, sodium bicarbonate solution conduit 115 and carbon dioxide discharge pipe 116 one end all are located purifying bottle 112 bottleneck department, sodium bicarbonate solution conduit 115 other end is located inside the sodium bicarbonate solution, the inside carbon dioxide discharge pipe 116 mouth of pipe department inner wall fixed mounting of purifying bottle 112 has waterproof ventilated membrane 117, concretely, because the molecular mass of carbon dioxide gas is about to be less than saturated sodium bicarbonate solution, therefore when letting in carbon dioxide gas to purifying bottle 112 inside, carbon dioxide gas is in the upper portion, consequently, with carbon dioxide admission pipe 114 one end and purifying bottle 112 bottle bottom contact, can prevent that the carbon dioxide gas of letting in from directly flowing out from sodium bicarbonate solution conduit 115 and carbon dioxide discharge pipe 116, set up carbon dioxide discharge pipe 116 one end in purifying bottle 112 bottleneck department, can guarantee that the carbon dioxide gas of letting in film compressor 210 is washed, simultaneously set up waterproof ventilated membrane 117 in carbon dioxide discharge pipe 116 department, can prevent that the saturated sodium bicarbonate solution in the purifying bottle 112 from getting into film compressor 210.
Further, the sealing partition plate 118 is fixedly installed at the upper end of the purifying tank 111, the purifying tank 111 provides support for the sealing partition plate 118, a sealing interval is formed between the sealing partition plate 118 and the purifying tank 111, carbon dioxide gas formed by decomposition of saturated sodium bicarbonate solution in the purifying tank 111 can be prevented from flowing out, the other ends of the plurality of groups of carbon dioxide inlet pipes 114 fixedly penetrate through the sealing partition plate 118, a first carbon dioxide permeable membrane 119 is arranged at the upper end of the sealing partition plate 118, two sides of the first carbon dioxide permeable membrane 119 are fixedly connected with inner walls at two sides of the shell 300, a carbon dioxide storage area 120 is formed between the sealing partition plate 118 and the first carbon dioxide permeable membrane 119, and specifically, the carbon dioxide storage area 120 can store carbon dioxide gas sucked by the air trapping assembly 130.
Further, the air trapping assembly 130 includes a supporting shell 131, the supporting shell 131 is fixedly connected with the upper end of the shell 300, the shell 300 provides support for the supporting shell 131, the supporting shell 131 fixedly penetrates through the upper wall of the shell 300, electrostatic dust removing rods 133 are fixedly mounted on the inner walls of two sides of the supporting shell 131, the supporting shell 131 provides support for the electrostatic dust removing rods 133, the electrostatic dust removing rods 133 are provided with multiple groups, the multiple groups of electrostatic dust removing rods 133 are layered, the electrostatic dust removing rods 133 located on the same layer are arranged in a linear array, a second carbon dioxide permeable membrane 134 is arranged between the electrostatic dust removing rods 133 of two adjacent layers, and in particular, the electrostatic dust removing rods 133 (electrostatic dust removing rods) can generate a large number of air clusters with positive and negative charges and neutralize charges on objects passing through the ion radiation area. When the surface of the object is charged with negative charges, the object attracts positive charges in the radiation area, when the surface of the object is charged with positive charges, the object attracts negative charges in the radiation area, so that static electricity on the surface of the object is neutralized, the purpose of eliminating static electricity is achieved, charged dust is adsorbed, meanwhile, the second carbon dioxide permeable membrane 134 and the first carbon dioxide permeable membrane 119 are all made of membranes made of acid fiber, polyimide, polysulfone and the like, different permeabilities of different gases are utilized for separation, the driving force of membrane separation is pressure difference, when pressure difference exists on two sides of the membrane, gas components with high permeabilities penetrate the membranes at a high rate to form permeable gas flows, the gas with low permeabilities forms residual gas flows on the gas inlet side of the membranes for the vast majority, and two gas flows are respectively led out, so that the purpose of separation is achieved, therefore, by turning on the negative pressure fan 135, the air and dust in the air enter the supporting shell 131 through the air supplementing pipeline 132, meanwhile, the air and dust in the air also enter the supporting shell 131 from the uppermost part of the supporting shell 131, the electrostatic dust removing rod 133 is electrified to generate a large amount of air clusters with positive and negative charges, which attract negative charges in a radiation area, so that static electricity on the surface of an object is neutralized, the purpose of eliminating the static electricity is achieved, meanwhile, the charged dust is adsorbed, the electrostatic dust removing rod 133 adsorbs the dust in the air which is introduced into the supporting shell 131, meanwhile, the air enters the upper part of the first carbon dioxide penetrating film 119 through the multi-layer second carbon dioxide penetrating film 134 and the negative pressure fan 135, the negative pressure forms a pressure difference on the two surfaces of the second carbon dioxide penetrating film 134, other gases in the air are blocked through the penetrating action of the second carbon dioxide penetrating film 134, the carbon dioxide gas enters the inside of the housing 300, and as the carbon dioxide gas in the housing 300 is continuously accumulated, the internal air pressure increases, and the excessive carbon dioxide gas passes through the first carbon dioxide permeable membrane 119 to enter the carbon dioxide storage area 120, while the first carbon dioxide permeable membrane 119 has a screening effect.
Further, a gas supplementing pipeline 132 is arranged on one side of the supporting shell 131, the supporting shell 131 provides support for the gas supplementing pipeline 132, the gas supplementing pipeline 132 is communicated with a second carbon dioxide permeable membrane 134 positioned in the middle, a plurality of groups of negative pressure fans 135 are fixedly arranged at the bottom of the supporting shell 131, the plurality of groups of negative pressure fans 135 are communicated with the second carbon dioxide permeable membrane 134 positioned at the bottommost part, specifically, negative pressure generated by the negative pressure fans 135 can form pressure difference on two surfaces of the second carbon dioxide permeable membrane 134, so that the permeation of carbon dioxide is facilitated, meanwhile, a plurality of layers of second carbon dioxide permeable membranes 134 are arranged, multi-layer screening can be carried out, and particularly, the second carbon dioxide permeable membranes 134 arranged between two layers of electrostatic dust removing rods 133 are wave-shaped, so that the pressure difference of all surfaces of the second carbon dioxide permeable membranes is different, and the permeability of carbon dioxide is higher.
Further, the carbon dioxide compression device 200 includes a film compressor 210, the film compressor 210 is located inside the housing 300, the film compressor 210 includes a housing 211, two inner walls of the housing 211 are rotatably connected with a same crank shaft 212, the housing 211 provides support for the crank shaft 212, two sets of connecting rods 213 are rotatably connected to the crank shaft 212, the crank shaft 212 provides support for the connecting rods 213, the ends of the two sets of connecting rods 213 are rotatably connected with sealing slide posts 214, the two sets of sealing slide posts 214 are slidably connected with the inner walls of the housing 211 in a sealing manner, specifically, by opening the servo motor 220, the output shaft of the servo motor 220 drives the crank shaft 212 to rotate, thereby forcing the crank shaft 212 to drive the two sets of connecting rods 213 to rotate, and driving the sealing slide posts 214 connected with the connecting rods 213 to reciprocate, so that the air pressure in the sealing regions at the upper parts of the two sets of sealing slide posts 214 is changed.
Further, the upper ends of the two groups of sealing slide posts 214 are respectively provided with a metal film 215, the two groups of metal films 215 are fixedly connected with the inner side wall of the machine shell 211 in a sealing way, the machine shell 211 provides support for the metal films 215, a sealing area is formed between the metal films 215 and the sealing slide posts 214, the upper ends of the machine shell 211 are respectively provided with two groups of air inlets 217 and two groups of air outlets 218, the machine shell 211 provides mounting positions for the two groups of air inlets 217 and the two groups of air outlets 218, the bottoms of the two groups of air inlets 217 and the two groups of air outlets 218 are respectively provided with a gas check valve 216, the bottoms of the gas check valves 216 are contacted with the metal films 215, one side of the shell 300 is fixedly provided with a servo motor 220, an output shaft of the servo motor 220 is fixedly connected with the crankshaft 212, specifically, when the sealing slide posts 214 move downwards, the air pressure in the sealing area is reduced, the metal films 215 move, the gas check valves 216 in the left end are conducted, and negative pressure is generated in the pre-pressed tube 140 connected with the left end air inlet 217.
Further, the air outlet 218 at the left end is fixedly provided with the secondary compression tube 230, the air outlet 218 at the left end provides support for the secondary compression tube 230, the other end of the secondary compression tube 230 is fixedly connected with the air inlet 217 at the right end, the air inlet 217 at the right end provides support for the secondary compression tube 230, the same precompaction tube 140 is fixedly arranged at the tail end of the carbon dioxide discharge tubes 116, the tail end of the precompaction tube 140 is fixedly connected with the air inlet 217 at the left end, the air inlet 217 at the left end provides support for the precompaction tube 140, the air outlet 218 at the right end is fixedly provided with the shunt tube 240, the air outlet 218 at the right end provides support for the shunt tube 240, the air pressure in the sealing slide column 214 is increased in the sealing interval, the metal film 215 moves, the air check valve 216 in the left end is conducted, carbon dioxide gas sucked in the metal film 215 is compressed at the moment, the carbon dioxide gas sucked in the air outlet 218 is discharged into the secondary compression tube 230, the carbon dioxide gas in the right end is discharged into the air bottle 240 along with the movement of the sealing slide column 214, and the carbon dioxide gas in the right end is compressed into the air bottle 250 through the air bottle 250.
Further, a heating box 260 is fixedly installed on one side of the housing 300, the housing 300 provides support for the heating box 260, a plurality of groups of heating plates 261 are arranged on the inner side wall of the heating box 260, a plurality of groups of carbon dioxide liquid storage bottles 270 are clamped inside the heating box 260, the heating box 260 provides support for the carbon dioxide liquid storage bottles 270, the air pressure valves of the plurality of groups of carbon dioxide liquid storage bottles 270 are fixedly connected with the air bottle communicating pipe 250, specifically, as the carbon dioxide gas discharged into the carbon dioxide liquid storage bottles 270 is continuously increased, the air pressure in the carbon dioxide liquid storage bottles 270 is gradually increased, when the air pressure in the carbon dioxide liquid storage bottles 270 reaches 7.14MPa, the heating plates 261 heat the carbon dioxide liquid storage bottles 270, the temperature of the carbon dioxide gas in the carbon dioxide liquid storage bottles 270 reaches 31.3 ℃, and the liquefaction of the gas carbon dioxide in the carbon dioxide liquid storage bottles 270 can be realized, so that the carbon dioxide is stored.
Further, the application method for the air carbon dioxide capturing and compressing device further comprises the following specific operation steps:
s1: by opening the negative pressure fan 135, the air and dust in the air enter the supporting shell 131 through the air supplementing pipeline 132, meanwhile, the air and dust in the air also enter the supporting shell 131 from the uppermost part of the supporting shell 131, the electrostatic dust removing rod 133 is electrified, the electrostatic dust removing rod 133 adsorbs the dust in the air which is introduced into the supporting shell 131, meanwhile, the air passes through the plurality of layers of second carbon dioxide permeable membranes 134 and the negative pressure fan 135 to enter the upper part of the first carbon dioxide permeable membrane 119 under the negative pressure generated by the negative pressure fan 135, other gases in the air are blocked by the permeation of the second carbon dioxide permeable membrane 134, the carbon dioxide gas enters the inside of the shell 300, the internal air pressure is increased along with the continuous accumulation of the carbon dioxide gas in the shell 300, and the redundant carbon dioxide gas passes through the first carbon dioxide permeable membrane 119 to enter the carbon dioxide storage area 120, and meanwhile, the first carbon dioxide permeable membrane 119 has a screening effect;
S2: when the carbon dioxide gas is required to be compressed, the output shaft of the servo motor 220 drives the crank shaft 212 to rotate by opening the servo motor 220, so that the crank shaft 212 is forced to drive the two groups of connecting rods 213 to rotate, and the sealing slide posts 214 connected with the connecting rods 213 are driven to reciprocate, so that the air pressure in the upper sealing intervals of the two groups of sealing slide posts 214 is changed, when the sealing slide posts 214 move downwards, the air pressure in the sealing intervals is reduced, the metal film 215 moves, the air one-way valve 216 in the air inlet 217 at the left end is conducted, and thus the negative pressure is generated in the pre-compression tube 140 connected with the air inlet 217 at the left end;
s3: with the accumulation of carbon dioxide gas in the carbon dioxide storage area 120, redundant carbon dioxide gas enters the purifying bottle 112 along with the carbon dioxide entering pipe 114, saturated sodium bicarbonate solution in the purifying bottle 112 is discharged into the purifying tank 111 through the sodium bicarbonate solution conducting pipe 115 along with the increase of the carbon dioxide gas in the purifying bottle 112, and because the pre-pressing pipe 140 is communicated with the carbon dioxide discharging pipe 116, when negative pressure is generated in the pre-pressing pipe 140, the carbon dioxide gas in the purifying bottle 112 enters the carbon dioxide discharging pipe 116 and the pre-pressing pipe 140, and thus enters the air inlet 217 at the left end of the film compressor 210, and when the carbon dioxide gas in the purifying bottle 112 enters the carbon dioxide discharging pipe 116, the saturated sodium bicarbonate solution in the purifying tank 111 enters the purifying bottle 112 through the sodium bicarbonate solution conducting pipe 115 under the action of the pressure;
S4: when the sealing slide column 214 moves upwards, the air pressure in the sealing interval increases, the metal film 215 moves, the air check valve 216 in the air outlet 218 at the left end is conducted, at this time, the carbon dioxide gas sucked in from the metal film 215 is compressed, the compressed carbon dioxide gas is discharged from the air outlet 218 into the secondary compression tube 230, along with the movement of the sealing slide column 214, the metal film 215 at the right end performs secondary compression on the carbon dioxide gas introduced into the right end, and the carbon dioxide gas after secondary compression is discharged into the carbon dioxide liquid storage bottle 270 through the shunt tube 240 and the gas cylinder communicating tube 250;
s5: as the carbon dioxide gas discharged into the carbon dioxide liquid storage bottle 270 increases, the air pressure in the carbon dioxide liquid storage bottle 270 increases gradually, and when the air pressure in the carbon dioxide liquid storage bottle 270 reaches 7.14MPa, the heating plate 261 heats the carbon dioxide liquid storage bottle 270 to make the temperature of the carbon dioxide gas in the carbon dioxide liquid storage bottle 270 reach 31.3 ℃, so that the liquefaction of the gaseous carbon dioxide in the carbon dioxide liquid storage bottle 270 can be realized, and the carbon dioxide storage can be realized.
The application process of the invention is as follows: by opening the negative pressure fan 135, the air and dust in the air enter the supporting shell 131 through the air supplementing pipeline 132, meanwhile, the air and dust in the air also enter the supporting shell 131 from the uppermost part of the supporting shell 131, the electrostatic dust removing rod 133 is electrified, the electrostatic dust removing rod 133 adsorbs the dust in the air which is introduced into the supporting shell 131, meanwhile, the air passes through the plurality of layers of second carbon dioxide permeable membranes 134 and the negative pressure fan 135 to enter the upper part of the first carbon dioxide permeable membrane 119 under the negative pressure generated by the negative pressure fan 135, other air in the air is blocked under the permeation of the second carbon dioxide permeable membrane 134, the carbon dioxide gas enters the inside of the shell 300, the internal air pressure is increased along with the continuous accumulation of the carbon dioxide gas in the shell 300, the surplus carbon dioxide gas passes through the first carbon dioxide permeable membrane 119 to enter the carbon dioxide storage area 120, and at the same time, the first carbon dioxide permeable membrane 119 has a screening function, and as the carbon dioxide gas in the carbon dioxide storage area 120 is accumulated, the surplus carbon dioxide gas enters the purification bottle 112 along with the carbon dioxide entering pipe 114, and as the molecular mass of the carbon dioxide gas is far less than that of the saturated sodium bicarbonate solution, the carbon dioxide gas is in the upper part when the carbon dioxide gas is introduced into the purification bottle 112, the saturated sodium bicarbonate solution is in the lower part, as the carbon dioxide gas in the purification bottle 112 increases, the saturated sodium bicarbonate solution in the purification bottle 112 is discharged into the purification tank 111 through the sodium bicarbonate solution conduit 115 under the action of pressure, and as the pre-compression pipe 140 is communicated with the carbon dioxide discharging pipe 116, when the pre-compression pipe 140 generates negative pressure, when the carbon dioxide gas in the purifying bottle 112 enters the carbon dioxide discharge pipe 116 and the pre-pressing pipe 140, and then enters the air inlet 217 at the left end of the film compressor 210, under the action of pressure, saturated sodium bicarbonate solution in the purifying tank 111 enters the purifying bottle 112 through the sodium bicarbonate solution guide pipe 115 when the carbon dioxide gas in the purifying bottle 112 enters the carbon dioxide discharge pipe 116, the generated gap is filled, so that the carbon dioxide gas which is introduced again is convenient for discharging liquid, when the carbon dioxide gas is required to be compressed, the output shaft of the servo motor 220 drives the crank shaft 212 to rotate by opening the servo motor 220, so that the crank shaft 212 is forced to drive the two groups of connecting rods 213 to rotate, the sealing slide posts 214 connected with the connecting rods 213 are driven to reciprocate, the air pressure in the sealing intervals at the upper parts of the two groups of the sealing slide posts 214 is changed, when the seal slide 214 moves downwards, the air pressure in the seal section is reduced, the metal film 215 moves, the air check valve 216 in the left air inlet 217 is conducted, so that negative pressure is generated in the pre-compression pipe 140 connected with the left air inlet 217, when the seal slide 214 moves upwards, the air pressure in the seal section is increased, the metal film 215 moves, the air check valve 216 in the left air outlet 218 is conducted, carbon dioxide sucked on the metal film 215 is compressed, the compressed carbon dioxide is discharged into the secondary compression pipe 230 from the air outlet 218, the metal film 215 at the right end performs secondary compression on the carbon dioxide introduced into the right end along with the movement of the seal slide 214, the carbon dioxide after secondary compression is discharged into the carbon dioxide liquid storage bottle 270 through the shunt pipe 240 and the gas bottle communicating pipe 250, as the carbon dioxide gas discharged into the carbon dioxide liquid storage bottle 270 increases, the air pressure in the carbon dioxide liquid storage bottle 270 increases gradually, and when the air pressure in the carbon dioxide liquid storage bottle 270 reaches 7.14MPa, the heating plate 261 heats the carbon dioxide liquid storage bottle 270 to make the temperature of the carbon dioxide gas in the carbon dioxide liquid storage bottle 270 reach 31.3 ℃, so that the liquefaction of the gaseous carbon dioxide in the carbon dioxide liquid storage bottle 270 can be realized, and the carbon dioxide storage can be realized.
The above description is of the preferred embodiments of the present invention, and any person skilled in the art may modify the present invention or make modifications to the present invention with the technical solutions described above. Therefore, any simple modification or equivalent made according to the technical solution of the present invention falls within the scope of the protection claimed by the present invention.
Claims (10)
1. The utility model provides a device for air carbon dioxide entrapment and compression, includes carbon dioxide entrapment device (100), carbon dioxide compression device (200) and casing (300), carbon dioxide entrapment device (100) and carbon dioxide compression device (200) all are located inside casing (300), its characterized in that: the carbon dioxide capture device (100) includes an air capture assembly (130); further comprises: a purification assembly (110) coupled to the air capture assembly (130);
the purification assembly (110) comprises a purification tank (111), the purification tank (111) is located inside the casing (300), the inside packing of purification tank (111) has saturated sodium bicarbonate solution, the inside purification bottle (112) that is equipped with of purification tank (111), purification bottle (112) are located inside the sodium bicarbonate solution of saturation, purification bottle (112) are equipped with the multiunit, multiunit purification bottle (112) are the symmetry setting, multiunit purification bottle (112) are all inverted, multiunit purification bottle (112) are inside all to be full of saturated sodium bicarbonate solution, purification bottle (112) bottleneck department joint has jam (113), jam (113) middle part joint has sodium bicarbonate solution conduit (115), jam (113) middle part both sides joint have carbon dioxide admission pipe (114) and carbon dioxide discharge pipe (116) respectively, carbon dioxide admission pipe (114), sodium bicarbonate solution conduit (115) and carbon dioxide discharge pipe (116) are all sealed run through and are blocked (113).
2. An apparatus for air carbon dioxide capture and compression according to claim 1, wherein: carbon dioxide admission pipe (114) one end and purifying bottle (112) bottle bottom contact, sodium bicarbonate solution conducting pipe (115) and carbon dioxide discharge pipe (116) one end all are located purifying bottle (112) bottleneck department, sodium bicarbonate solution conducting pipe (115) other end is located inside the sodium bicarbonate solution, is located inside purifying bottle (112) carbon dioxide discharge pipe (116) mouth of pipe department inner wall fixed mounting has waterproof ventilated membrane (117).
3. An apparatus for air carbon dioxide capture and compression according to claim 2, wherein: sealing partition plates (118) are fixedly arranged at the upper end of the purifying tank (111), sealing intervals are formed between the sealing partition plates (118) and the purifying tank (111), a plurality of groups of carbon dioxide inlet pipes (114) penetrate through the sealing partition plates (118) fixedly at the other ends, first carbon dioxide permeable membranes (119) are arranged at the upper ends of the sealing partition plates (118), two sides of each first carbon dioxide permeable membrane (119) are fixedly connected with inner walls of two sides of the shell (300), and a carbon dioxide storage area (120) is formed between each sealing partition plate (118) and each first carbon dioxide permeable membrane (119).
4. A device for capturing and compressing air carbon dioxide according to claim 3, wherein: the air trapping assembly (130) comprises a supporting shell (131), the supporting shell (131) is fixedly connected with the upper end of the shell (300), the supporting shell (131) fixedly penetrates through the upper wall of the shell (300), electrostatic dust removal rods (133) are fixedly mounted on the inner walls of two sides of the supporting shell (131), multiple groups of electrostatic dust removal rods (133) are arranged in a layered mode, the electrostatic dust removal rods (133) located on the same layer are arranged in a linear array mode, and a second carbon dioxide permeable membrane (134) is arranged between the electrostatic dust removal rods (133) of two adjacent layers.
5. An apparatus for air carbon dioxide capture and compression according to claim 4, wherein: the support shell (131) one side is equipped with gas replenishment pipeline (132), gas replenishment pipeline (132) and be located second carbon dioxide osmotic membrane (134) in middle part intercommunication, support shell (131) bottom fixed mounting has multiunit negative pressure fan (135), multiunit negative pressure fan (135) and be located second carbon dioxide osmotic membrane (134) in bottommost intercommunication.
6. An apparatus for air carbon dioxide capture and compression according to claim 5, wherein: the carbon dioxide compression device (200) comprises a film compressor (210), the film compressor (210) is located inside a shell (300), the film compressor (210) comprises a shell (211), two side inner walls of the shell (211) are rotationally connected with the same crankshaft (212), two groups of connecting rods (213) are rotationally connected to the crankshaft (212), the tail ends of the two groups of connecting rods (213) are rotationally connected with sealing slide columns (214), and the two groups of sealing slide columns (214) are in sealing sliding connection with the inner side walls of the shell (211).
7. An apparatus for air carbon dioxide capture and compression according to claim 6, wherein: the two groups of sealing slide posts (214) upper ends are all equipped with metal film (215), two groups of metal film (215) and casing (211) inside wall sealing fixed connection, form sealed interval between metal film (215) and sealing slide posts (214), casing (211) upper end is equipped with two sets of air inlets (217) and two sets of gas outlets (218) respectively, and two groups of air inlets (217) and two sets of gas outlets (218) bottom all are equipped with gaseous check valve (216), gaseous check valve (216) bottom and metal film (215) contact, casing (300) one side fixed mounting has servo motor (220), servo motor (220) output shaft and crank axle (212) fixed connection.
8. An apparatus for air carbon dioxide capture and compression according to claim 7, wherein: the device is characterized in that a secondary compression pipe (230) is fixedly installed on the air outlet (218) at the left end, the other end of the secondary compression pipe (230) is fixedly connected with an air inlet (217) at the right end, a plurality of carbon dioxide discharge pipes (116) are fixedly installed with the same pre-compression pipe (140), the tail end of the pre-compression pipe (140) is fixedly connected with the air inlet (217) at the left end, a shunt pipe (240) is fixedly installed on the air outlet (218) at the right end, and air bottle communicating pipes (250) are fixedly installed at all pipe orifices of the shunt pipe (240).
9. An apparatus for air carbon dioxide capture and compression according to claim 8, wherein: the heating box (260) is fixedly arranged on one side of the shell (300), a plurality of groups of heating plates (261) are arranged on the inner side wall of the heating box (260), a plurality of groups of carbon dioxide liquid storage bottles (270) are clamped inside the heating box (260), and a plurality of groups of bottle mouth air pressure valves of the carbon dioxide liquid storage bottles (270) are fixedly connected with the air bottle communicating pipe (250).
10. A method for using an air carbon dioxide capture and compression device according to claim 9, characterized in that: the method also comprises the following specific operation steps:
s1: the negative pressure fan (135) is turned on by a user, gas and dust in the air enter the supporting shell (131) through the gas supplementing pipeline (132), meanwhile, the gas and dust in the air enter the supporting shell (131) from the uppermost part of the supporting shell (131), the electrostatic dust removing rod (133) is electrified, the electrostatic dust removing rod (133) adsorbs the dust in the air which is introduced into the supporting shell (131), meanwhile, the air passes through the plurality of layers of second carbon dioxide permeable membranes (134) and the negative pressure fan (135) to enter the upper part of the first carbon dioxide permeable membrane (119) through the negative pressure generated by the negative pressure fan (135), other gases in the air are blocked through the permeation of the second carbon dioxide permeable membranes (134), the carbon dioxide gas enters the inside of the shell (300), the internal air pressure is increased along with the continuous accumulation of the carbon dioxide gas in the shell (300), and the redundant carbon dioxide gas passes through the first carbon dioxide permeable membrane (119) to enter the carbon dioxide storage area (120), and meanwhile, the first carbon dioxide permeable membrane (119) has a screening effect;
S2: when carbon dioxide gas is required to be compressed, the output shaft of the servo motor (220) drives the crank shaft (212) to rotate, so that the crank shaft (212) is forced to drive the two groups of connecting rods (213) to rotate, and the sealing slide columns (214) connected with the connecting rods (213) are driven to reciprocate, so that the air pressure in the upper sealing intervals of the two groups of sealing slide columns (214) is changed, when the sealing slide columns (214) move downwards, the air pressure in the sealing intervals is reduced, the metal film (215) moves, the air check valve (216) positioned in the left air inlet (217) is conducted, and thus negative pressure is generated in the pre-pressing pipe (140) connected with the left air inlet (217);
s3: with the accumulation of carbon dioxide gas in the carbon dioxide storage area (120), redundant carbon dioxide gas enters the purifying bottle (112) along with the carbon dioxide entering pipe (114), saturated sodium bicarbonate solution in the purifying bottle (112) is discharged into the purifying tank (111) through the sodium bicarbonate solution conducting pipe (115) along with the increase of the carbon dioxide gas in the purifying bottle (112), and because the pre-pressing pipe (140) is communicated with the carbon dioxide discharging pipe (116), when negative pressure is generated in the pre-pressing pipe (140), the carbon dioxide gas in the purifying bottle (112) enters the carbon dioxide discharging pipe (116) and the pre-pressing pipe (140), and then enters the air inlet (217) at the left end of the film compressor (210), and when the carbon dioxide gas in the purifying bottle (112) enters the carbon dioxide discharging pipe (116), under the action of the pressure, the saturated sodium bicarbonate solution in the purifying tank (111) enters the purifying bottle (112) through the sodium bicarbonate solution conducting pipe (115);
S4: when the sealing slide column (214) moves upwards, the air pressure in the sealing section is increased, the metal film (215) moves, the air check valve (216) in the air outlet (218) at the left end is communicated, carbon dioxide sucked on the metal film (215) is compressed, the compressed carbon dioxide is discharged into the secondary compression tube (230) from the air outlet (218), along with the movement of the sealing slide column (214), the metal film (215) at the right end performs secondary compression on the carbon dioxide introduced into the right end, and the carbon dioxide after secondary compression is discharged into the carbon dioxide liquid storage bottle (270) through the shunt tube (240) and the gas cylinder communicating tube (250);
s5: along with the continuous increase of the carbon dioxide gas discharged into the carbon dioxide liquid storage bottle (270), the air pressure in the carbon dioxide liquid storage bottle (270) is gradually increased, when the air pressure in the carbon dioxide liquid storage bottle (270) reaches 7.14MPa, the heating plate (261) is used for heating the carbon dioxide liquid storage bottle (270) to enable the temperature of the carbon dioxide gas in the carbon dioxide liquid storage bottle to reach 31.3 ℃, and the liquefaction of the gaseous carbon dioxide in the carbon dioxide liquid storage bottle (270) can be realized, so that the carbon dioxide is stored.
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JP6462323B2 (en) * | 2014-11-12 | 2019-01-30 | 三菱重工業株式会社 | CO2 separation apparatus in gas and membrane separation method thereof |
CN108339377B (en) * | 2017-01-23 | 2021-02-26 | 神华集团有限责任公司 | From containing CO2Separation of CO from gas streams2Method and membrane separation system |
CN109536209A (en) * | 2018-11-28 | 2019-03-29 | 刘金成 | A kind of defeated coal carbon dioxide feeder of coal gasification |
CN214840086U (en) * | 2021-02-02 | 2021-11-23 | 山东产发低碳环保科技有限公司 | Carbon capture equipment for absorbing carbon dioxide emission |
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JP2001215072A (en) * | 2000-02-02 | 2001-08-10 | Matsushita Electric Ind Co Ltd | Vessel for recovering and trapping carbon dioxide gas and method for reproducing the same |
CN201244430Y (en) * | 2008-05-30 | 2009-05-27 | 西安热工研究院有限公司 | Apparatus for collecting carbonic anhydride in coal-fired plant flue gas |
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