CN217795335U - Carbon dioxide capture system - Google Patents
Carbon dioxide capture system Download PDFInfo
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- CN217795335U CN217795335U CN202221485498.1U CN202221485498U CN217795335U CN 217795335 U CN217795335 U CN 217795335U CN 202221485498 U CN202221485498 U CN 202221485498U CN 217795335 U CN217795335 U CN 217795335U
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Abstract
The utility model provides a carbon dioxide entrapment system, this system includes: the system comprises a power generation energy storage device, a phase change heat storage device and a carbon dioxide capture device, wherein the phase change heat storage device is used for converting sunlight into heat energy for storage and supplying the heat energy to the carbon dioxide capture device; the carbon dioxide capture device adsorbs carbon dioxide in an adsorption mode; in the release mode, receiving heat energy of the phase change heat storage device to release carbon dioxide indoors, and controlling the power generation and energy storage device to enter a discharge mode; the carbon dioxide capture device is also used for detecting the concentration of carbon dioxide in the room so as to control the discharge capacity of the power generation and energy storage device and the heat release capacity of the phase change heat storage device when the concentration of carbon dioxide does not meet the requirement; the power generation and energy storage device generates and stores electric energy in a power generation mode; in the discharge mode, electric energy is released to assist the discharge of carbon dioxide from the gas inlet and outlet passage. According to the utility model discloses a system can solve current carbon dioxide entrapment technical cost height, the big problem of energy consumption.
Description
Technical Field
The utility model relates to a carbon dioxide entrapment technical field especially relates to a carbon dioxide entrapment system.
Background
In order to effectively deal with the problems of global energy shortage, ecological environment deterioration and the like, the utilization of renewable energy sources is widely concerned and developed, wherein the solar hot air power generation gradually draws the attention of researchers due to the advantages of simple system structure, green and pollution-free performance and the like. However, solar hot air flow power generation has the problems of large weather influence, low power generation efficiency and the like, and cannot be used as a mature commercial power generation mode, and the effective way for promoting the application and development of the technology is to store electric energy to adapt to other application scenes. An energy storage medium is needed when electric energy is stored, a common energy storage medium at present is a lead-acid battery, but the lead-acid battery has the problems of short service life, serious pollution and the like, and has defects when used for storing electric energy generated by solar hot air flow, and a super capacitor has the characteristics of multiple charging and discharging times and no pollution, so that a coupling system for solar hot air flow power generation and super capacitor energy storage has a wide application prospect.
The air carbon dioxide direct capture technology (DAC) can directly capture carbon dioxide from air, and is a technology which is expected to realize negative emission of carbon dioxide, but the technology usually utilizes a wind power plant, needs a fan to pump a large amount of air and needs a heat source to heat an adsorbent so as to desorb the carbon dioxide, so that the air carbon dioxide direct capture technology has the problems of high cost, large energy consumption and the like, and currently stays in a small-scale industrial demonstration stage.
SUMMERY OF THE UTILITY MODEL
The present invention aims at solving at least one of the technical problems in the related art to a certain extent. Therefore, an object of the present invention is to provide a carbon dioxide collecting system, which mainly aims to solve the problems of high cost and large energy consumption of the existing carbon dioxide collecting technology.
In order to achieve the above object, a first aspect of the present invention provides a carbon dioxide capture system, including: the device comprises a power generation energy storage device, a phase change heat storage device and a carbon dioxide capture device, wherein the carbon dioxide capture device is respectively connected with the power generation energy storage device and the phase change heat storage device;
the phase change heat storage device is used for converting sunlight into heat energy for storage and providing the heat energy for the carbon dioxide capture device;
the carbon dioxide capture device adsorbs carbon dioxide in an absorption mode; in a release mode, receiving heat energy from the phase change heat storage device to release carbon dioxide indoors, and controlling the power generation and energy storage device to enter a discharge mode; the carbon dioxide capture device is also used for detecting the concentration of carbon dioxide in a room so as to control the discharge capacity of the power generation and energy storage device and the heat release capacity of the phase change heat storage device when the concentration of the carbon dioxide does not meet the requirement;
the power generation and energy storage device generates electric energy in a power generation mode and stores the electric energy; releasing electrical energy in the discharge mode assists in the discharge of the carbon dioxide from the gas access passage.
In an embodiment of the present invention, the power generation and energy storage device includes a generator, a super capacitor and an impeller disposed at the gas access passage.
In one embodiment of the present invention, an AC/DC converter is disposed between the generator and the super capacitor, and a DC/AC inverter is disposed between the super capacitor and the impeller.
In one embodiment of the present invention, the carbon dioxide capture device comprises a carbon dioxide adsorption and desorption module.
In an embodiment of the present invention, the carbon dioxide collecting system further includes a slide rail disposed outside the gas access passage, and the phase change heat storage device is mounted on the slide rail.
In an embodiment of the utility model, the carbon dioxide capture system further comprises a reflector arranged on the ground, and the reflector is used for collecting the received sunlight reflection to the phase change heat storage device.
In an embodiment of the present invention, the carbon dioxide collecting system further includes a diversion module disposed indoors, the diversion module is used for guiding indoor airflow to flow into the gas access passage.
In an embodiment of the present invention, the diversion module is a diversion cone.
In one embodiment of the present invention, the carbon dioxide adsorption and desorption module includes a catalytic unit for converting greenhouse gases other than carbon dioxide into carbon dioxide.
In an embodiment of the present invention, the carbon dioxide adsorption and desorption module further includes an adsorption unit for adsorbing carbon dioxide.
In one or more embodiments of the present invention, the carbon dioxide collecting system includes a power generation energy storage device, a phase change heat storage device and a carbon dioxide collecting device, the carbon dioxide collecting device is respectively connected to the power generation energy storage device and the phase change heat storage device, and the phase change heat storage device is used for converting sunlight into heat energy for storage and supplying the heat energy to the carbon dioxide collecting device; the carbon dioxide capturing device adsorbs carbon dioxide in an absorption mode; in the release mode, receiving heat energy of the phase change heat storage device to release carbon dioxide indoors, and controlling the power generation and energy storage device to enter a discharge mode; the carbon dioxide capture device is also used for detecting the concentration of carbon dioxide in the room so as to control the discharge capacity of the power generation and energy storage device and the heat release capacity of the phase change heat storage device when the concentration of carbon dioxide does not meet the requirement; the power generation and energy storage device generates and stores electric energy in a power generation mode; in the discharge mode, electric energy is released to assist the discharge of carbon dioxide from the gas inlet and outlet passage. Under the condition, the coupling system for generating power and storing energy is applied to the technology for directly capturing carbon dioxide in the air, and meanwhile, the solar phase-change heat storage device is used for providing heat energy for the desorption of the carbon dioxide, so that the cost for system construction and the energy consumption in the capturing process can be effectively reduced, the carbon dioxide capturing system is enabled to operate in a green, pollution-free and low-energy-consumption mode, the utilization of renewable energy sources is promoted, and the problems of high cost and high energy consumption of the existing carbon dioxide capturing technology are solved.
Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.
Drawings
The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
FIG. 1 shows a block diagram of a carbon dioxide capture system provided by an embodiment of the present invention;
fig. 2 is a schematic view illustrating a scene of a carbon dioxide capture system for coupling solar energy and energy stored in a super capacitor according to an embodiment of the present invention;
FIG. 3 shows a block diagram of a carbon dioxide capture device provided by an embodiment of the present invention;
FIG. 4 shows a block diagram of another carbon dioxide capture device provided by an embodiment of the present invention;
fig. 5 shows a schematic flow diagram of a carbon dioxide capture method for coupling solar energy and energy stored by a super capacitor according to an embodiment of the present invention.
Detailed Description
Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, like numbers in different drawings represent the same or similar elements unless otherwise indicated. The implementations described in the following exemplary embodiments do not represent all implementations consistent with embodiments of the present invention. Rather, they are merely examples of apparatus and methods consistent with certain aspects of embodiments of the invention, as detailed in the appended claims.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Moreover, various embodiments or examples and features of various embodiments or examples described in this specification can be combined and combined by one skilled in the art without being mutually inconsistent.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of the feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless explicitly defined otherwise. It should also be understood that the term "and/or" as used in the present disclosure refers to and encompasses any and all possible combinations of one or more of the associated listed items.
Reference will now be made in detail to the embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the drawings are exemplary and intended to be used for explaining the present invention, and should not be construed as limiting the present invention.
In a first embodiment, FIG. 1 shows a block diagram of a carbon dioxide capture system provided by an embodiment of the present invention. Fig. 2 shows a schematic view of a scene of a carbon dioxide capture system coupling solar energy and super capacitor energy storage provided by an embodiment of the present invention. As shown in fig. 1, the carbon dioxide capturing system 10 includes a power generation energy storage device 11, a phase change heat storage device 12, and a carbon dioxide capturing device 13, wherein the carbon dioxide capturing device 13 is connected to the power generation energy storage device 11 and the phase change heat storage device 12, respectively.
In the present embodiment, the power generation and storage device 11 generates electric energy in the power generation mode and stores the electric energy; in the discharging mode, electric energy is released to assist the carbon dioxide to be discharged from the gas inlet and outlet channel. If the power generation and energy storage device 11 utilizes solar energy to generate power and utilizes the super capacitor to store energy, then the carbon dioxide capture system of the utility model can also be called as the carbon dioxide capture system of coupling solar energy and super capacitor energy storage.
Specifically, in the present embodiment, the power generation and energy storage device 11 generates power by using the hot air flow in the room after being irradiated by sunlight. The indoor space is a light-transmitting space, and during power generation, the space discharges gas (namely airflow) to the outside through a gas inlet and outlet channel. The outer wall of the gas inlet and outlet channel is in an open air environment. For example, in the scenario shown in fig. 2, the chamber is a space with a conical top, and the gas inlet and outlet channel is the topmost chimney of the space.
The power generation and energy storage device 11 in this embodiment includes a solar thermal current power generation unit and a super capacitor, where the solar thermal current power generation unit includes a power generator and an impeller disposed at a gas inlet/outlet passage, and the impeller is connected to the power generator. In a power generation mode, the impeller is used for rotating by utilizing hot air flow entering the gas inlet and outlet channel to generate mechanical energy, the generator is used for converting the mechanical energy into electric energy, so that solar hot air flow power generation is realized, and the super capacitor is used for storing the electric energy; in the discharge mode, the supercapacitor is used to transmit electricity to the impeller to rotate the impeller.
In some embodiments, as shown in fig. 2, an AC/DC converter (AC to DC converter) may also be disposed between the generator and the super capacitor. A DC/AC inverter (direct current to alternating current converter) can also be arranged between the super capacitor and the impeller. As shown in fig. 2, the impeller is disposed in the chimney, and in the power generation mode, sunlight irradiates the greenhouse, the indoor temperature of the greenhouse rises, hot air flow rises and enters the chimney to drive the impeller in the chimney to rotate, the impeller is connected with the generator, so that solar hot air flow power generation is realized, and electric energy (i.e., alternating current output by the generator) generated by the generator is converted by alternating current and direct current of the AC/DC converter and then stored in the super capacitor. In the discharging mode, the electric energy stored in the super capacitor (namely the direct current output by the super capacitor) is converted by the alternating current and the direct current of the DC/AC inverter and then enters the impeller so as to drive the impeller to rotate.
The power generation and storage device 11 in this embodiment is usually in power generation mode during the day with sunlight.
In the present embodiment, the phase change heat storage device 12 is used to convert sunlight into thermal energy for storage, and supply the thermal energy to the carbon dioxide capture device 13.
Specifically, in the present embodiment, the phase change heat storage device 12 is used to convert sunlight into thermal energy for storage, and supply heat to the carbon dioxide capture device using the thermal energy. Specifically, the phase change heat storage device 12 may receive sunlight and convert the received sunlight into heat energy for storage, and a heat release switch of the phase change heat storage device 12 is connected to the carbon dioxide capture device 13 and is controlled by a heat release instruction sent by the carbon dioxide capture device 13, and when receiving the heat release instruction from the carbon dioxide capture device 13, the heat release switch is closed to supply heat energy to the carbon dioxide capture device. Therefore, the phase change heat storage device is used for providing a heat source for the carbon dioxide capturing device 13, and the energy consumption of the carbon dioxide capturing system is reduced.
In some embodiments, the phase change thermal storage device 12 may be disposed directly on the outer wall of the gas access passage, such that the phase change thermal storage device 12 receives sunlight. In particular, the phase change thermal storage device 12 may be disposed directly at the topmost outer wall of the gas access duct to reduce the possibility of the phase change thermal storage device 12 being shielded by other objects around it. A phase change heat storage device such as that in fig. 2 is provided at the outer wall of the top of the chimney.
In some embodiments, the carbon dioxide capture system 10 may further comprise a slide rail disposed outside the gas access duct, the phase change thermal storage device being mounted on the slide rail; when the heat energy is stored, the phase change heat storage device moves on the slide rail according to the change of the position of the sun to adjust the height; when heat is supplied to the carbon dioxide capture device, the phase change heat storage device moves to one side close to the carbon dioxide capture device so as to reduce heat loss. As shown in fig. 2, the chimney is provided with a slide rail, so that the height of the phase change heat storage device 12 can be reduced during heat release, and the heat dissipation amount of the working medium flowing to the cold end is reduced.
In some embodiments, the carbon dioxide capture system 10 may also include a mirror disposed at the surface. The reflector is used for reflecting and collecting the received sunlight to the phase change heat storage device.
In some embodiments, the ground reflector is equipped with a sun tracker, and the phase change thermal storage device and the ground reflector can be adjusted in height and angle according to the change of the position of the sun, so that the heat storage capacity is improved.
In some embodiments, there may be more than one mirror to better increase the amount of stored heat. For example, there are 2 mirrors in fig. 2.
In the present embodiment, the carbon dioxide trapping device 13 adsorbs carbon dioxide in the absorption mode; in the release mode, receiving heat energy from the phase change heat storage device 12 to release carbon dioxide into the room, and controlling the electricity generation and energy storage device 11 to enter a discharge mode; the carbon dioxide capture device 13 is also used for detecting the carbon dioxide concentration in the room so as to control the discharge amount of the power generation and energy storage device 11 and the heat release amount of the phase change heat storage device 12 when the carbon dioxide concentration does not meet the requirement.
Specifically, fig. 3 shows a block diagram of a carbon dioxide capture device provided by an embodiment of the present invention. In the present embodiment, the carbon dioxide trapping device 13 has an absorption mode and an absorption mode, in which the carbon dioxide trapping device 13 determines whether it is in the absorption mode according to whether the adsorption of carbon dioxide is saturated and whether there is sunlight. The carbon dioxide capturing device 13 in this embodiment enters the release mode upon receiving a carbon dioxide demand instruction from another place on the premise that sunlight is not present.
In the present embodiment, as shown in fig. 3, the carbon dioxide capture device 13 includes a carbon dioxide adsorption and desorption module 131. The carbon dioxide adsorption and desorption module 131 is disposed in the chamber. In the absorption mode, the carbon dioxide adsorption and desorption module 131 is used to adsorb carbon dioxide; in the release mode, the carbon dioxide adsorption and desorption module 131 is used to receive thermal energy from the phase change thermal storage device 12 to release (i.e., desorb) carbon dioxide into the chamber. In this case, the carbon dioxide adsorption and desorption modules of the power generation and energy storage device 11 and the carbon dioxide capture device 13 share one greenhouse, and the impeller and the phase change heat storage device 12 are integrated on the chimney, so that the construction cost of the carbon dioxide capture system is reduced.
Specifically, in the present embodiment, the carbon dioxide adsorption and desorption module 131 includes an adsorption unit and a catalytic unit, which are provided indoors. The adsorption unit and the catalytic unit may have one or more groups. As shown in fig. 2, there may be 2 groups of adsorption units and catalytic units.
In this embodiment, the catalytic unit includes a catalyst, and the catalytic unit can convert greenhouse gases other than carbon dioxide to carbon dioxide. The greenhouse gas other than carbon dioxide may be, for example, methane. The adsorption unit is used for adsorbing carbon dioxide. The adsorption unit comprises carbon dioxide (CO) 2 ) The adsorbent and the adsorption unit can adsorb carbon dioxide in indoor air and carbon dioxide converted by the catalytic unit. Specifically, in the absorption mode, sunlight irradiates the greenhouse to raise the indoor temperature, and when hot air flows through the catalytic unit in the carbon dioxide adsorption and desorption module 131, the catalyst absorbs CO under the action of ultraviolet rays 2 Conversion of other greenhouse gases to CO 2 CO converted by catalytic unit 2 Together with the CO present in the air itself 2 Is absorbed by the carbon dioxide absorbent in the absorption unit, thereby realizing the absorption process of the carbon dioxide in the carbon dioxide capture technology. In the release mode, the carbon dioxide capture device 13 sends a heat release instruction to the phase change heat storage device 12, the phase change heat storage device 12 receives the heat release instruction and then supplies heat to the carbon dioxide adsorption and desorption module 131, and the carbon dioxide adsorption and desorption module 131 receives heat energy from the phase change heat storage device 12 and then heats the adsorption unit to adsorb CO 2 Releasing, thereby realizing the release process of the carbon dioxide in the carbon dioxide capture technology. Under the condition, the phase change heat storage device 12 is used for providing heat energy for desorption of carbon dioxide, so that the construction cost of the carbon dioxide capture system 10 and the energy consumption in the capture process can be effectively reduced, the carbon dioxide capture system can operate in a green, pollution-free and low-energy-consumption mode, and the purpose of reducing the concentration of carbon dioxide in the air is achieved.
In the present embodiment, in the release mode, the carbon dioxide trapping device 13 is also used to control the power generation and energy storage device 11 to enter the discharge mode, so as to assist the discharge of carbon dioxide from the gas inlet and outlet passage by using the rotation of the impeller. The suction effect of the chimney and the impeller enables more air to flow through the carbon dioxide adsorbent, so that the adsorption quantity of carbon dioxide is increased, the use of a fan is reduced or avoided, and the energy consumption of the carbon dioxide capture system is reduced.
Specifically, the carbon dioxide capture device 13 is connected with a discharge switch of the super capacitor, the discharge switch is controlled by a discharge mode command sent by the carbon dioxide capture device 13, in a release mode, the carbon dioxide capture device 13 sends the discharge mode command to the power generation and energy storage device 11, the power generation and energy storage device 11 receives the discharge mode command, then the discharge switch is closed to enter a discharge mode, at the moment, the super capacitor discharges, the impeller is driven to rotate through the DC/AC inverter, and the suction chamber contains high CO 2 A gas stream of a concentration, which is then conveyed to the desired CO via a stack and a pipeline 2 The location of (a) is utilized. Need for CO 2 The site(s) may be, for example, a vegetable greenhouse, where the CO is introduced 2 The carbon dioxide is delivered to the vegetable greenhouse and can be used for adjusting the concentration of the carbon dioxide in the vegetable greenhouse, promoting the photosynthesis of plants and achieving the purpose of reducing the concentration of the carbon dioxide in the air.
In some embodiments, the carbon dioxide capture system 10 may further include a flow guide module disposed within the chamber for guiding the flow of gas from the chamber into the gas access passage, taking into account the possible reduction in velocity of the flow of gas as it passes through the adsorption unit. The indoor air stream is, for example, a hot air stream exposed to sunlight or an air stream comprising a higher concentration of carbon dioxide when carbon dioxide is released by carbon dioxide capture. As shown in fig. 2, the diversion module is a diversion cone disposed right below the chimney so as to better guide the direction of the airflow, so that the kinetic energy loss is reduced when the hot airflow turns, and the power generation efficiency is improved. The thick arrows in fig. 2 indicate the flow direction of the gas flow.
In the present embodiment, as shown in fig. 3, the carbon dioxide trapping device 13 includes a carbon dioxide concentration detection module 132. The carbon dioxide concentration detection module 132 is disposed in a room or a chimney for detecting the carbon dioxide concentration in the room.
In the present embodiment, the carbon dioxide capture device 13 determines whether the carbon dioxide concentration satisfies the requirement based on the carbon dioxide concentration detected by the carbon dioxide concentration detection module 132, and controls the discharge amount of the supercapacitor in the power generation and energy storage device 11 and the heat release amount of the phase change heat storage device 12 when it is determined that the carbon dioxide concentration does not satisfy the requirement.
Specifically, as shown in FIG. 3, the carbon dioxide trapping device 13 includes a first determination module 133. The first determining module 133 is provided with a first concentration threshold and a second concentration threshold, and the first concentration threshold is greater than the second concentration threshold.
In some embodiments, the first concentration threshold may be determined from a release rate when the carbon dioxide content of the adsorption unit is sufficient, and the second concentration threshold may be determined from a release rate when the carbon dioxide content of the adsorption unit is insufficient.
In other embodiments, the first and second concentration thresholds may be based on CO throughout the course of carbon dioxide release from the adsorption unit under experimental conditions 2 And determining the change condition of the concentration. For example, CO detection 2 When the concentration is obviously reduced, the CO adsorbed in daytime is indicated 2 Most of the CO is released at this time 2 The concentration determines a second concentration threshold.
In this embodiment, the first determining module 133 is configured to determine the carbon dioxide concentration, the second concentration threshold, and the magnitude between the first concentration thresholds and generate a corresponding instruction. Specifically, when the carbon dioxide concentration is greater than the second concentration threshold and less than the first concentration threshold, the first determining module 133 generates a first instruction for instructing to increase the heat release amount; when the carbon dioxide concentration is equal to or greater than the first concentration threshold, the first determination module 133 generates a second instruction for instructing an increase in the discharge amount; when the carbon dioxide concentration is less than or equal to the second concentration threshold, the first determination module 133 generates a third instruction for instructing to reduce the heat release amount and a fourth instruction for instructing to reduce the discharge amount.
Fig. 4 is a block diagram illustrating another carbon dioxide capture device according to an embodiment of the present invention.
In some embodiments, the carbon dioxide capture device 13 may further include a first obtaining module 134, a second obtaining module 135, a second determining module 136, and a third determining module 137.
The first acquiring module 134 is configured to acquire a carbon dioxide demand instruction or a carbon dioxide stop instruction, and when the carbon dioxide demand instruction is received, the carbon dioxide trapping device 13 enters the release mode, and when the carbon dioxide stop instruction is received, the carbon dioxide trapping device stops the release mode. Wherein, the carbon dioxide demand instruction or the carbon dioxide stop instruction can be changed from other demand CO 2 The device of the site.
The second obtaining module 135 is configured to, in the release mode, obtain a carbon dioxide demand increase instruction or a carbon dioxide demand decrease instruction, and transmit the obtained carbon dioxide demand increase instruction or carbon dioxide demand decrease instruction to the second determining module 136. Wherein the carbon dioxide demand increase command or the carbon dioxide demand decrease command can be controlled by other CO-demand commands 2 The device of the site.
The second judging module 136 is configured to judge whether a carbon dioxide demand increase instruction or a carbon dioxide demand decrease instruction is received and generate a corresponding instruction, specifically, when the carbon dioxide demand increase instruction is received, the second judging module 136 generates a fifth instruction for instructing to increase the heat release amount and a sixth instruction for instructing to increase the discharge amount, and when the carbon dioxide demand decrease instruction is received, the second judging module 136 generates a seventh instruction for instructing to decrease the heat release amount and an eighth instruction for instructing to decrease the discharge amount.
The third judging module 137 is configured to obtain the instruction generated by the second judging module 136 and the instruction generated by the first judging module 133, and send a confirmation instruction to the second judging module 136 or the first judging module 133 through instruction judgment to control the discharge amount of the supercapacitor in the power generation and energy storage device 11 and the heat release amount of the phase change thermal storage device 12.
Specifically, the third determining module 137 is further configured to send a first confirmation instruction to the first determining module 133 when the second determining module 136 generates the fifth instruction and the sixth instruction and the first determining module 133 generates the first instruction or the second instruction; the third judging module 137 is further configured to output an alarm instruction when the second judging module 136 generates a fifth instruction and a sixth instruction and the first judging module 133 generates a third instruction and a fourth instruction; the third determining module 137 is further configured to send a second confirmation instruction to the second determining module 136 when the second determining module 136 generates the seventh instruction and the eighth instruction and the first determining module 133 generates the first instruction or the second instruction; the third determining module 137 is further configured to send a third confirmation instruction to the first determining module 133 when the second determining module 136 generates the seventh instruction and the eighth instruction and the first determining module 133 generates the third instruction and the fourth instruction. In addition, after receiving the corresponding confirmation instruction, the first determining module 133 and the second determining module 136 respectively send instructions to the corresponding super capacitor or phase change heat storage device 12 in the power generation and energy storage device 11, so as to control the discharge amount of the super capacitor in the power generation and energy storage device 11 and the heat release amount of the phase change heat storage device 12.
In some embodiments, the carbon dioxide capture system 10 further comprises an alarm device, which gives an alarm prompt after receiving the alarm command output by the third determination module 137.
In the carbon dioxide capturing system of the utility model, the carbon dioxide capturing device is respectively connected with the power generation energy storage device and the phase change heat storage device, and the phase change heat storage device is used for converting sunlight into heat energy for storage and supplying the heat energy to the carbon dioxide capturing device; the carbon dioxide capturing device adsorbs carbon dioxide in an absorption mode; in the release mode, receiving heat energy of the phase change heat storage device to release carbon dioxide indoors, and controlling the power generation and energy storage device to enter a discharge mode; the carbon dioxide capture device is also used for detecting the concentration of carbon dioxide in the room so as to control the discharge capacity of the power generation and energy storage device and the heat release capacity of the phase change heat storage device when the concentration of carbon dioxide does not meet the requirement; the power generation and energy storage device generates and stores electric energy in a power generation mode; in the discharging mode, electric energy is released to assist the carbon dioxide to be discharged from the gas inlet and outlet channel. Under the condition, the coupling system for power generation and energy storage is applied to the technology for directly capturing carbon dioxide in the air, and meanwhile, the solar phase-change heat storage device is used for providing heat energy for desorption of the carbon dioxide, so that the cost for system construction and the energy consumption in the capturing process can be effectively reduced, the carbon dioxide capturing system can operate in a green, pollution-free and low-energy-consumption mode, the utilization of renewable energy sources is promoted, and the problems of high cost and high energy consumption of the existing carbon dioxide capturing technology are solved. The power generation and energy storage device comprises a power generator, a super capacitor and an impeller arranged at a gas inlet and outlet channel, wherein the impeller rotates by utilizing hot gas flow entering the gas inlet and outlet channel to generate mechanical energy in a power generation mode, the power generator converts the mechanical energy into electric energy, and the super capacitor stores the electric energy; in the discharging mode, the super capacitor transmits electricity to the impeller so as to rotate the impeller; the phase change heat storage device converts sunlight into heat energy for storage, and the heat energy is used for supplying heat to the carbon dioxide capture device; the carbon dioxide capture device comprises a carbon dioxide concentration detection module and a carbon dioxide adsorption and desorption module which are arranged indoors; the carbon dioxide adsorption and desorption module adsorbs carbon dioxide in an absorption mode; the carbon dioxide adsorption and desorption module receives heat energy from the phase change heat storage device to release carbon dioxide indoors in the release mode, the carbon dioxide capture device controls the power generation and energy storage device to enter the discharge mode so as to use rotation of the impeller to assist the carbon dioxide to be discharged from the gas inlet and outlet channel, and the carbon dioxide concentration detection module detects the concentration of the carbon dioxide indoors so that the carbon dioxide capture device controls the discharge capacity of the supercapacitor and the heat release capacity of the phase change heat storage device when judging that the concentration of the carbon dioxide does not meet requirements. Under the condition, the coupling system for solar thermal energy airflow power generation and super capacitor energy storage is applied to the air carbon dioxide direct capture technology, and meanwhile, the solar phase change heat storage device is used for providing heat energy for desorption of carbon dioxide, so that the cost of system construction and the energy consumption in the capture process can be effectively reduced, the carbon dioxide capture system is enabled to operate in a green, pollution-free and low-energy-consumption mode, negative emission of carbon dioxide is achieved, the purpose of reducing the concentration of carbon dioxide in air is achieved, the application scene of solar thermal energy airflow power generation is widened, the utilization of renewable energy is promoted, and the problems of high cost and high energy consumption of the existing carbon dioxide capture technology are solved.
The following is a method embodiment of the present invention, and please refer to a system embodiment of the present invention for details not disclosed in the method embodiment of the present invention. The embodiment of the utility model provides a carbon dioxide capture method for coupling solar energy and super capacitor energy storage. The carbon dioxide capturing method for coupling solar energy and super capacitor energy storage adopts the carbon dioxide capturing system for coupling solar energy and super capacitor energy storage of the system embodiment to realize a carbon dioxide capturing technology.
Fig. 5 shows a schematic flow diagram of a carbon dioxide capture method for coupling solar energy and energy stored by a super capacitor according to an embodiment of the present invention. As shown in fig. 5, the method for capturing carbon dioxide by coupling solar energy with energy stored in a super capacitor comprises the following steps:
s101, utilizing sunlight to irradiate a room to generate hot air flow, driving an impeller to rotate through the hot air flow to generate mechanical energy, converting the mechanical energy into electric energy through a generator, and storing the electric energy in a super capacitor;
s102, converting the entering sunlight into heat energy through a phase change heat storage device, and storing the heat energy in the phase change heat storage device;
s103, judging whether the carbon dioxide capture device is in an absorption mode or a release mode, and if the carbon dioxide capture device is in the absorption mode, adsorbing carbon dioxide by the carbon dioxide capture device;
and S104, in the release mode, receiving heat from the phase-change heat storage device through the carbon dioxide capturing device, releasing carbon dioxide into the room, controlling the super capacitor to transmit power to the impeller so as to rotate the impeller, assisting carbon dioxide discharge by using rotation of the impeller, and detecting the carbon dioxide concentration in the room so as to control the discharge amount of the super capacitor and the heat release amount of the phase-change heat storage device when the carbon dioxide concentration does not meet requirements. Wherein whether the carbon dioxide concentration meets the requirement is mainly determined based on the carbon dioxide concentration, the second concentration threshold value and the first concentration threshold value. The first concentration threshold and the second concentration threshold are preset, and the first concentration threshold is larger than the second concentration threshold.
The specific determination process of step S103 and step S104 is as follows:
acquiring a carbon dioxide demand instruction or a carbon dioxide stop instruction, and controlling the carbon dioxide trapping device to enter a corresponding mode;
judging whether the carbon dioxide trapping device is in a release mode;
if the carbon dioxide trapping device is not in the release mode, whether the adsorption condition of the carbon dioxide in the carbon dioxide trapping device is saturated or not is comprehensively determined, and whether the carbon dioxide is in the absorption mode or not is determined;
if the control module is in the release mode, acquiring a carbon dioxide demand increase instruction or a carbon dioxide demand decrease instruction, judging whether the received command is the carbon dioxide demand increase instruction, and if so, generating a fifth instruction for indicating to increase the heat release amount and a sixth instruction for indicating to increase the discharge amount by a second judging module; if not, the second judgment module is used for indicating a seventh command for reducing the heat release amount and an eighth command for indicating the discharge amount;
if the device is in the release mode, the carbon dioxide trapping device simultaneously sends a heat release instruction to the phase change heat storage device and sends a discharge mode instruction to the power generation and energy storage device, the phase change heat storage device releases heat, the power generation and energy storage device enters the discharge mode, and the carbon dioxide trapping device releases carbon dioxide; detecting the concentration of carbon dioxide in a room, judging whether the concentration of the carbon dioxide is greater than a second concentration threshold and smaller than a first concentration threshold, and generating a first instruction for indicating to increase the heat release amount through a first judging module of the carbon dioxide trapping device when the concentration of the carbon dioxide is greater than the second concentration threshold and smaller than the first concentration threshold; generating a second instruction for instructing to increase the discharge amount by a first judgment module of the carbon dioxide trapping device when the carbon dioxide concentration is greater than or equal to a first concentration threshold; generating a third instruction for instructing to reduce the heat release amount and a fourth instruction for instructing to reduce the discharge amount by a first judgment module of the carbon dioxide trapping device when the carbon dioxide concentration is less than or equal to a second concentration threshold;
and acquiring an instruction generated by the second judging module and an instruction generated by the first judging module, and sending a confirmation instruction to the second judging module or the first judging module through instruction judgment so as to control the discharge capacity of the super capacitor in the power generation and energy storage device and the heat release capacity of the phase change heat storage device. Specifically, when the second judging module generates a fifth instruction and a sixth instruction and the first judging module generates the first instruction or the second instruction, a first confirmation instruction is sent to the first judging module; when the second judging module generates a fifth instruction and a sixth instruction and the first judging module generates a third instruction and a fourth instruction, outputting an alarm instruction; when the second judgment module generates a seventh instruction and an eighth instruction and the first judgment module generates the first instruction or the second instruction, sending a second confirmation instruction to the second judgment module; when the second judging module generates a seventh instruction and an eighth instruction and the first judging module generates a third instruction and a fourth instruction, a third confirmation instruction is sent to the first judging module; after receiving the corresponding confirmation instruction, the first judgment module or the second judgment module sends an instruction to the corresponding power generation energy storage device and the phase change heat storage device respectively so as to control the discharge capacity of the super capacitor in the power generation energy storage device and the heat release capacity of the phase change heat storage device. And if the alarm device receives the corresponding instruction, alarming.
In combination with the scene of fig. 2, the utility model discloses a carbon dioxide capture method of coupling solar energy and super capacitor energy storage specifically processes as follows:
CO adsorbed in an adsorption unit of a carbon dioxide capture device in sunlight during daytime 2 Under unsaturated condition, sunlight irradiates the greenhouse, indoor temperature rises, hot air flows through the adsorption unit and the catalytic unit in the carbon dioxide catching device, wherein the catalyst in the catalytic unit can make CO under the action of ultraviolet rays 2 Conversion of other greenhouse gases such as methane to CO 2 And converting the CO 2 Together with the CO present in the air itself 2 CO in the adsorbed unit 2 Adsorbing by an adsorbent; the hot air flow is guided by the diversion cone and then rises to drive the impeller in the chimney to rotate, and the impeller is connected with the generator to realize solar hot air flowGenerating power, wherein the current is stored by the super capacitor through the AC/DC converter; sunlight is collected to the phase change heat storage device at the top of the chimney through the reflector, and heat energy is stored by heating a working medium;
at night and when the carbon dioxide capture device receives a carbon dioxide demand instruction sent by target equipment at other places, the carbon dioxide capture device enters a release mode, simultaneously sends a heat release instruction to the phase change heat storage device, sends a discharge mode instruction to the power generation and energy storage device, releases heat to the phase change heat storage device, heats the adsorption unit through the heat exchanger, and enables adsorbed CO 2 Releasing; discharging the super capacitor, driving the impeller to rotate through the DC/AC inverter, and pumping high CO in the chamber 2 The method comprises the steps that air flow with concentration is conveyed to a place corresponding to target equipment sending a carbon dioxide demand instruction through a chimney and a pipeline for utilization, a carbon dioxide concentration detection module arranged in the chimney detects the concentration of carbon dioxide in a room, a first judgment module of a carbon dioxide capture device judges the concentration of the carbon dioxide, a second concentration threshold and the first concentration threshold to generate corresponding instructions, in addition, in a release mode, a carbon dioxide demand increase instruction or a carbon dioxide demand decrease instruction sent by the target equipment is obtained, a corresponding instruction is generated through a second judgment module of the carbon dioxide capture device, a third judgment module of the carbon dioxide capture device obtains the instruction generated by the second judgment module and the instruction generated by the first judgment module, and a confirmation instruction is sent to the second judgment module or the first judgment module through instruction judgment to control the discharge amount of a super capacitor in a power generation and energy storage device and control the heat release amount of a phase change and heat storage device, so that the automation degree of a system is improved and the energy loss is reduced.
It should be noted that the foregoing explanation of the embodiment of the carbon dioxide capture system for coupling solar energy and energy stored in the super capacitor is also applicable to the carbon dioxide capture method for coupling solar energy and energy stored in the super capacitor of this embodiment, and is not repeated herein.
The above embodiment numbers of the present invention are only for description, and do not represent the advantages and disadvantages of the embodiments.
In the carbon dioxide trapping method of coupling solar energy and supercapacitor energy storage of the utility model, a carbon dioxide trapping system comprising a power generation energy storage device, a phase change heat storage device and a carbon dioxide trapping device is utilized, the power generation energy storage device comprises a generator, a supercapacitor and an impeller arranged at a gas inlet and outlet channel, the impeller realizes rotation by hot air flow entering the gas inlet and outlet channel in a power generation mode to generate mechanical energy, the generator converts the mechanical energy into electric energy, and the supercapacitor stores the electric energy; in the discharging mode, the super capacitor transmits electricity to the impeller so as to rotate the impeller; the phase change heat storage device converts sunlight into heat energy for storage, and the heat energy is used for supplying heat to the carbon dioxide capture device; the carbon dioxide capture device comprises a carbon dioxide concentration detection module and a carbon dioxide adsorption and desorption module which are arranged indoors; the carbon dioxide adsorption and desorption module adsorbs carbon dioxide in an absorption mode; the carbon dioxide adsorption and desorption module receives heat energy from the phase change heat storage device to release carbon dioxide indoors in the release mode, the carbon dioxide capture device controls the power generation and energy storage device to enter the discharge mode so as to use rotation of the impeller to assist the carbon dioxide to be discharged from the gas inlet and outlet channel, and the carbon dioxide concentration detection module detects the concentration of the carbon dioxide indoors so that the carbon dioxide capture device controls the discharge capacity of the supercapacitor and the heat release capacity of the phase change heat storage device when judging that the concentration of the carbon dioxide does not meet requirements. Under the condition, the coupling system for solar hot air flow power generation and super capacitor energy storage is applied to the technology of directly capturing air carbon dioxide, and meanwhile, the solar phase change heat storage device is used for providing heat energy for desorption of the carbon dioxide, so that the cost of system construction and the energy consumption in the capturing process can be effectively reduced, the carbon dioxide capturing system is enabled to operate in a green, pollution-free and low-energy-consumption mode, meanwhile, the utilization of renewable energy sources is promoted, and the problems of high cost and high energy consumption of the existing carbon dioxide capturing technology are solved.
It should be understood that various forms of the flows shown above, reordering, adding or deleting steps, may be used. For example, the steps described in the present invention may be executed in parallel or sequentially or in different orders, and the present invention is not limited thereto as long as the desired result of the technical solution of the present invention can be achieved.
The above detailed description does not limit the scope of the present invention. It should be understood by those skilled in the art that various modifications, combinations, sub-combinations and substitutions may be made, depending on design requirements and other factors. Any modification, equivalent replacement, and improvement 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 capture system, comprising: the device comprises a power generation energy storage device, a phase change heat storage device and a carbon dioxide capture device, wherein the carbon dioxide capture device is respectively connected with the power generation energy storage device and the phase change heat storage device;
the phase change heat storage device is used for converting sunlight into heat energy for storage and providing the heat energy for the carbon dioxide capture device;
the carbon dioxide capture device adsorbs carbon dioxide in an absorption mode; in a release mode, receiving heat energy from the phase change heat storage device to release carbon dioxide indoors, and controlling the power generation and energy storage device to enter a discharge mode; the carbon dioxide capture device is also used for detecting the concentration of carbon dioxide in a room so as to control the discharge capacity of the power generation and energy storage device and the heat release capacity of the phase change heat storage device when the concentration of the carbon dioxide does not meet the requirement;
the power generation and energy storage device generates electric energy in a power generation mode and stores the electric energy; releasing electrical energy in the discharge mode assists in the discharge of the carbon dioxide from the gas access passage.
2. The carbon dioxide capture system of claim 1, wherein the electricity-generating energy storage device comprises an electric generator, an ultracapacitor, and an impeller disposed at the gas access duct.
3. The carbon dioxide capture system of claim 2, wherein an AC/DC converter is provided between the generator and the supercapacitor, and a DC/AC inverter is provided between the supercapacitor and the impeller.
4. The carbon dioxide capture system of claim 1, wherein the carbon dioxide capture device comprises a carbon dioxide adsorption and desorption module.
5. The carbon dioxide capture system of claim 1, further comprising a skid disposed outside the gas access duct, the phase change heat storage device being mounted on the skid.
6. The carbon dioxide capture system of claim 1 or 5, further comprising a mirror disposed on the ground for reflecting and concentrating received sunlight onto the phase change heat storage device.
7. The carbon dioxide capture system of claim 1, further comprising a flow guide module disposed within the chamber for guiding a flow of gas within the chamber into the gas access duct.
8. The carbon dioxide capture system of claim 7, wherein the flow guide module is a flow guide cone.
9. The carbon dioxide capture system of claim 4, wherein the carbon dioxide adsorption and desorption module comprises a catalytic unit for converting greenhouse gases other than carbon dioxide to carbon dioxide.
10. The carbon dioxide capture system of claim 9, wherein the carbon dioxide adsorption and desorption module further comprises an adsorption unit for adsorbing carbon dioxide.
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| CN202221485498.1U CN217795335U (en) | 2022-06-14 | 2022-06-14 | Carbon dioxide capture system |
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