A high-magnification light condensation thermoelectric utilization and multi-product preparation device suitable for space station

Abstract

The present application relates to the technical field of energy preparation, in particular to a high-multiple light condensation thermoelectric utilization and multi-product preparation device suitable for space station, comprising a recyclable CO2 extraction system, an H2O capture system, a methanol synthesis system, a supercritical CO2 conversion system, a CO electro-reduction system, a multi-cycle cooling and heating system, a dimethyl carbonate synthesis system and a light-sensing Fresnel high-multiple light condensation thermoelectric conversion system; the present application captures and converts the cabin environment gas, combines the light-tracking Fresnel high-multiple light condensation thermoelectric system, converts the cabin gas into fuel, oxygen and fuel additive, effectively alleviates the resource shortage problem of space environment, and uses the multi-cycle cooling and heating system to exchange heat for the device, effectively reduces energy loss.

Description

Technical Field

[0001] This invention relates to the field of energy production technology, specifically to a device for high-concentration photothermal power utilization and multi-product preparation suitable for space stations. Background Technology

[0002] Manned spaceflight is a concentrated display of the world's advanced technologies, and therefore holds immense significance in politics, strategy, economy, science and technology, talent cultivation, and cultural development. The manned space program is a landmark project showcasing a nation's comprehensive national strength, concerning the country's long-term development and the nation's future, and will also have a significant impact on the global landscape.

[0003] Dimethyl carbonate (DMC) is an excellent fuel additive that effectively improves fuel performance. It is characterized by safe and convenient use, low pollution, and easy transportation during production. DMC possesses properties such as high oxygen content (up to 53% oxygen in the molecule), excellent octane rating enhancement, low toxicity, and rapid degradation, effectively reducing harmful gas emissions. Furthermore, as a fuel additive, it overcomes the drawback of conventional fuel additives' water solubility. Therefore, DMC plays a significant role in maintaining the high quality of aviation fuel.

[0004] Oxygen, like food and water, is an essential energy source for the human body. Oxygen inhaled through the respiratory tract can combine with hemoglobin in the blood. The functioning of organs such as the heart and brain is closely related to the amount of oxygen delivered to the blood. Space is an oxygen-free environment, making oxygen even more important for astronauts inside the cabin, and it can directly affect their life safety.

[0005] Carbon monoxide, as a combustible energy source, releases a large amount of heat when burned. Therefore, as a gaseous fuel, it can effectively alleviate the resource shortage caused by the limited carrying capacity of other fuels in spacecraft.

[0006] Solar energy has become an important part of human energy use and continues to develop. For the space environment, abundant solar energy, as a renewable energy source, can ensure the sustainable operation of spacecraft. Moreover, solar energy is a new energy source with enormous potential, and its development and utilization produce almost no pollution. Summary of the Invention

[0007] The technical problem to be solved by this invention is to provide a device for high-concentration photothermal power utilization and multi-product preparation suitable for space stations, in order to alleviate the problem of limited resources in the space environment.

[0008] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: a device for high-concentration photothermal power utilization and multi-product preparation suitable for space stations, including a recyclable CO2 extraction system, an H2O capture system, a methanol synthesis system, a supercritical CO2 conversion system, a CO electroreduction system, a multi-cycle cooling and heating system, a dimethyl carbonate synthesis system, and a photosensitive Fresnel high-concentration photothermal power conversion system;

[0009] The output of the recyclable CO2 extraction system is connected to the input of the H2O capture system, the methanol synthesis system, and the supercritical CO2 conversion system, respectively. The output of the H2O capture system is connected to the input of the methanol synthesis system, the output of the supercritical CO2 conversion system is connected to the input of the dimethyl carbonate synthesis system and the CO electroreduction system, respectively, and the output of the methanol synthesis system is connected to the input of the dimethyl carbonate synthesis system.

[0010] A recyclable CO2 extraction system is used to extract CO2 from the environment, and an H2O capture system is used to extract H2O from the environment. A portion of the extracted CO2 and H2O is fed into a methanol synthesis system to synthesize methanol, while another portion of CO2 is converted into supercritical CO2 through a supercritical CO2 conversion system. A portion of the supercritical CO2 can be converted into CO through a CO electroreduction system, and another portion of the supercritical CO2 is combined with methanol to synthesize dimethyl carbonate.

[0011] The photosensitive Fresnel high-concentration photothermal-electric conversion system is used to provide heat for the methanol synthesis system and the supercritical CO2 conversion system, and to provide power for the CO electroreduction system.

[0012] The multi-cycle cooling and heating system exchanges heat with the recyclable CO2 extraction system, methanol synthesis system, supercritical CO2 conversion system, CO electroreduction system, and dimethyl carbonate synthesis system, respectively.

[0013] The above-mentioned technical solution captures and converts the gas in the cabin environment, combined with a Fresnel high-concentration photothermal system that can track light, converts the gas in the cabin into fuel, oxygen and fuel additives, effectively alleviating the resource shortage problem in the space environment. Furthermore, it uses a multi-cycle cooling and heating system to exchange heat for the device, effectively reducing energy loss.

[0014] Furthermore, the recyclable CO2 extraction system includes a CO2 capture chamber, a recyclable heating chamber, and a NaOH collection chamber connected in sequence by a transmission pipeline, and a loop is provided between the NaOH collection chamber and the CO2 capture chamber, with a switch installed on the loop, and a gas-liquid mixing pump is installed on the transmission pipeline.

[0015] The recirculating heating chamber includes an inverted frustum-shaped funnel at the bottom and a solid-liquid separation filter screen located above the inverted frustum-shaped funnel. An annular conveying device is installed at the bottom of the recirculating heating chamber to convey the recirculating heating chamber into the double-door heating box. The annular conveying device includes an annular conveying track and a support bracket for supporting the annular conveying track. The double-door heating box includes a fixed box body and slidable cover plates located on both sides of the fixed box body and slidably connected to it. The gas output end of the double-door heating box is connected to the CO2 collection chamber, and the gas output end of the CO2 capture chamber is connected to the H2O capture system.

[0016] When the recyclable CO2 extraction system is working, the ambient gas inside the spacecraft is drawn into the CO2 capture chamber by the gas-liquid mixing pump through the transmission pipeline. At this time, the switch of the recyclable CO2 extraction system is turned off. The NaOH originally carried in the CO2 capture chamber reacts with the CO2 in the drawn-in gas to generate Na2CO3 and CO2. The remaining gas is then sent to the H2O capture system through the transmission pipeline by the gas-liquid mixing pump at the output end.

[0017] The mixed liquid in the CO2 capture chamber is pumped to the recirculating heating chamber by a gas-liquid mixing pump. The gas-liquid mixing pump accelerates the fluid flow. The recirculating heating chamber originally carries CaO solid. The mixed liquid from the CO2 capture chamber reacts with CaO to produce CaCO3 and NaOH. The solid-liquid separation filter separates the solid and liquid. The mixed solution of NaOH and a small amount of Na2CO3 enters the NaOH collection chamber to complete the collection of NaOH. At this time, the switch of the recirculating CO2 extraction system is turned on. The NaOH and a small amount of Na2CO3 in the NaOH collection chamber are returned to the CO2 capture chamber by the gas-liquid mixing pump, completing the recycling of NaOH.

[0018] At this point, the gas-liquid mixing pumps at both ends of the recirculating heating chamber are turned off, and the liquid stops flowing. The recirculating heating chamber is then conveyed to the double-door heating box via the annular conveyor track on the annular conveyor device. After the recirculating heating chamber stops, the sliding covers on both sides of the double-door heating box are lowered to close the box. At this time, the gas-liquid mixing pump on the second oil pipe of the multi-circulation cooling and heating system and the gas-liquid mixing pump on the CO2 transmission pipe above the double-door heating box start working simultaneously. The solid CaCO3 and a small amount of CaO on the solid-liquid separation filter screen of the recirculating heating chamber in the double-door heating box are heated to generate CaO and CO2. The CO2 is sent to the CO2 collection chamber via the CO2 transmission pipe. The sliding covers on both sides of the double-door heating box are opened again, and the recirculating heating chamber carries the remaining CaO back to its original position via the annular conveyor device to complete the extraction of CO2.

[0019] Furthermore, the H2O capture system includes an H2O collection box, with a coil and refrigeration equipment on the upper part of the H2O collection box. The coil has several through holes and a filter screen installed inside. The input end of the coil is connected to the gas output end of the CO2 capture chamber, and the output end of the coil extends out of the H2O collection box. Switches are installed at both the input and output ends of the coil. A timer switch fan blade is provided in the middle of the H2O collection box, and an annular heating plate is provided at the bottom. The output end of the H2O capture system is connected to the methanol synthesis system.

[0020] Turn on the switches on both sides of the H2O collection box. The refrigeration equipment cools the gas to -20℃. The H2O in the mixed gas at the input end turns into a solid and is intercepted by the filter screen inside the coil with through holes. The remaining gas is discharged by the gas-liquid mixing pump. After a period of time, turn off the input switch of the H2O collection box while keeping the output switch open. After the excess gas in the coil is discharged by the gas-liquid mixing pump at the output end, turn off the output switch. At this time, the coil is a closed pipe. There is no excess gas in the pipe and the solid H2O is attached to the filter screen inside the coil. Turn on the timer switch fan blades. The annular heating plate heats the solid H2O to liquefy and then vaporize it. At this time, the gas-liquid mixing pump on the H2O transmission pipe at the lower output end of the H2O collection box starts to work, delivering the H2O gas to the high-temperature oxidation-reduction reaction chamber to complete the extraction of H2O.

[0021] Furthermore, the methanol synthesis system includes a high-temperature oxidation-reduction reaction chamber, a gas mixing chamber, and a gas separation chamber connected in sequence. The gas separation chamber includes a paramagnetic rotor and a dimagnetic rotor. One side of the paramagnetic rotor is connected to the O2 collection chamber, and one side of the dimagnetic rotor is connected to the methanol synthesis chamber. The output end of the methanol synthesis chamber is connected to the methanol collection tank through a methanol transmission pipe.

[0022] Both the high-temperature redox reaction chamber and the methanol synthesis chamber include, from the outside to the inside, an outer wall of a water injection layer, a cooling water injection layer, and an inner wall of the chamber.

[0023] A gas-liquid mixing pump delivers CO2 and H2O from the CO2 collection chamber and H2O collection tank to the high-temperature redox reaction chamber. Simultaneously, a gas-liquid mixing pump on the second water pipe of the multi-cycle cooling and heating system starts working, and the photosensitive Fresnel high-concentration photothermal conversion system provides heat. High temperature and pressure are generated in the high-temperature redox reaction chamber, and H2O and CO2 are reduced to CO and H2 at high temperature. At the same time, at high temperature, vapor decomposition is accompanied by O2 and H2. Meanwhile, the gas-liquid mixing pump on the second water pipe accelerates the flow of H2O in the pipe and cools the chamber appropriately through heat exchange in the energy storage tank. The mixed gas generated in the high-temperature redox reaction chamber is drawn into the gas mixing chamber by the gas-liquid mixing pump, fully mixed and appropriately cooled, and then enters the gas separation chamber through the transmission pipeline with the gas-liquid mixing pump.

[0024] Since CO and H2 are diamagnetic and O2 is paramagnetic, the paramagnetic rotor in the gas separation chamber separates O2 to the O2 collection chamber; the diamagnetic rotor separates CO and H2 to the methanol synthesis chamber via the gas-liquid mixing pump, completing the separation of the mixed gas; in the methanol synthesis chamber, CO and H2 are fully mixed and methanol is generated under high temperature and high pressure catalysis. At the same time, the third water pipe cools the chamber appropriately through the energy storage tank and the gas-liquid mixing pump. The methanol is transported to the methanol collection tank through the methanol transmission pipe with the gas-liquid mixing pump, completing the preparation of methanol.

[0025] Furthermore, the supercritical CO2 conversion system includes a supercritical CO2 conversion chamber, a supercritical CO2 collection chamber, and a supercritical CO2 sterilization box connected in sequence. The supercritical CO2 conversion chamber has a groove structure, including an outer wall of the chamber, a supercritical CO2 conversion layer, and an inner wall of the chamber from the outside to the inside. The supercritical CO2 conversion chamber is equipped with solar cells and a compressor. The inner wall of the chamber is attached to the solar cells. The input end of the supercritical CO2 conversion chamber is connected to the CO2 collection chamber.

[0026] A portion of the CO2 in the CO2 collection chamber is transported by a gas-liquid mixing pump to the supercritical CO2 conversion layer of the trough-type supercritical CO2 conversion chamber. The supercritical CO2 conversion layer is a four-sided encircling layer without a bottom. Since the solar cells are mounted in the groove of the trough-type supercritical CO2 conversion chamber and the inner wall of the chamber is in close contact with the cells, the supercritical CO2 conversion layer is heated. At the same time, the compressor inside the layer pressurizes it. When the internal temperature of the supercritical CO2 conversion layer reaches 31°C and 7.3 MPa, CO2 can be converted into supercritical CO2. It is then transported to the supercritical CO2 collection chamber by a supercritical CO2 heat-insulated pipe with a gas-liquid mixing pump, thus completing the collection of supercritical CO2 and also providing appropriate cooling for the cells.

[0027] Furthermore, the CO electroreduction system includes a storage tank and an H-type electrolytic cell, which are connected by a power transmission line. One end of the H-type electrolytic cell is connected to the CO collection chamber, and the other end is connected to the output end of the supercritical CO2 collection chamber.

[0028] A portion of the supercritical CO2 in the supercritical CO2 collection chamber is supplied to the supercritical CO2 sterilization box for sterilizing food, equipment, etc., while the other portion is transferred through a transmission pipeline to the energy storage tank for heat exchange. When the temperature drops below 31℃, the supercritical CO2 is converted into ordinary CO2 and then fed into the H-type electrolytic cell. The electrolysis process is based on the electrochemical reduction of CO2 using a KOH / methanol mixed electrolyte. At around 35℃, with a slightly higher methanol concentration in the mixed electrolyte, the maximum Faraday efficiency for CO formation can reach over 55%. To address temperature instability, a fourth water pipe is added, passing through the energy storage tank and then through the H-type electrolytic cell, to continuously control the electrolyte temperature at around 35℃ before flowing back to the energy storage tank, forming a closed-loop heating pipeline. The battery is powered by solar cells. CO is transported to the CO collection chamber via a gas-liquid mixing pump and a transmission pipeline to complete the preparation and collection of CO.

[0029] Furthermore, the dimethyl carbonate synthesis system includes a dimethyl carbonate synthesis chamber, a dimethyl carbonate transfer pipe, and a dimethyl carbonate collection chamber connected in sequence. The dimethyl carbonate synthesis chamber is equipped with a propeller-type stirrer, and the input end of the dimethyl carbonate synthesis chamber is connected to a supercritical CO2 collection chamber and a methanol collection tank, respectively.

[0030] A portion of the supercritical CO2 collected in the supercritical CO2 collection chamber is transported to the dimethyl carbonate synthesis chamber via a supercritical CO2 insulated pipeline equipped with a gas-liquid mixing pump. In the dimethyl carbonate synthesis chamber, methanol from the methanol collection tank is mixed with supercritical CO2 from the supercritical CO2 collection chamber. The first oil pipe of the multi-cycle cooling and heating system provides heat to the mixture via an energy storage tank. The pressure equipment and the first oil pipe in the dimethyl carbonate synthesis chamber bring the chamber environment to 20 MPa and 150°C. The mixture is then thoroughly mixed by a propeller agitator to generate dimethyl carbonate, which is then transported to the dimethyl carbonate collection chamber via a dimethyl carbonate transfer pipe and a gas-liquid mixing pump, thus completing the preparation of dimethyl carbonate.

[0031] Furthermore, the multi-cycle cooling and heating system includes an energy storage tank. A first water pipe connects the energy storage tank to the bottom of the supercritical CO2 conversion chamber. A second water pipe connects the energy storage tank to the cooling water injection layer of the high-temperature oxidation-reduction reaction chamber. A third water pipe connects the energy storage tank to the cooling water injection layer of the methanol synthesis chamber. A fourth water pipe connects the energy storage tank to the H-type electrolytic cell. A first oil pipe connects the energy storage tank to the dimethyl carbonate synthesis chamber. A second oil pipe connects the energy storage tank to the double-door heating box.

[0032] Furthermore, the photosensitive Fresnel high-concentration photothermal conversion system includes a Fresnel mirror module, on which a photosensitive element is mounted, and below it is a carrying housing. The carrying housing houses a high-temperature redox reaction chamber and solar cells, providing a high reaction temperature for the high-temperature redox reaction chamber and converting solar energy into electrical energy to power the H-type electrolytic cell and the cabin facilities. The carrying housing is rotatably connected to a support frame via a rotatable shaft, and the support frame is fixed to a fixed base. The photosensitive element can be adjusted in angle via the rotatable shaft to achieve real-time, continuous, and efficient utilization of solar energy through light tracking. The entire light-tracking device is secured by the support frame and the fixed base, ensuring stable and sustainable system operation.

[0033] The beneficial effects of this invention are as follows: By capturing and converting the gases in the cabin environment, combined with a traceable Fresnel high-concentration solar thermal power system, this invention converts the gases in the cabin into fuel, oxygen, and fuel additives, effectively alleviating the resource shortage problem in the space environment. Furthermore, the use of a multi-cycle cooling and heating system for heat exchange effectively reduces energy loss; simultaneously, the application of the traceable Fresnel high-concentration solar thermal power integrated system enables continuous and efficient utilization of solar energy, maintaining stable spacecraft operation and energy conversion, and sustainably converting the gases in the space cabin environment into carbon monoxide, dimethyl carbonate, and oxygen. Attached Figure Description

[0034] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0035] Figure 1 This is a schematic diagram of the structure of the present invention;

[0036] Figure 2 This is a schematic diagram of the CO2 extraction system;

[0037] Figure 3 This is a schematic diagram of the H2O capture system;

[0038] Figure 4 This is a schematic diagram of the gas separation chamber;

[0039] Figure 5 This is a schematic diagram of the high-temperature redox reaction chamber;

[0040] Figure 6 This is a schematic diagram of a supercritical CO2 conversion system;

[0041] Figure 7 This is a schematic diagram of the dimethyl carbonate synthesis system;

[0042] Figure 8 This is a schematic diagram of the structure of a photosensitive Fresnel high-concentration photothermal conversion system equipped with a high-temperature redox reaction chamber;

[0043] Figure 9 This is a schematic diagram of a solar cell mounted on a photosensitive Fresnel high-concentration photothermal conversion system;

[0044] In the picture:

[0045] 1-CO2 extraction system; 11-Transfer pipeline; 12-Gas-liquid mixing pump; 13-CO2 capture chamber; 14-Circulating heating chamber; 141-Solid-liquid separation filter; 142-Inverted frustum-shaped funnel; 15-NaOH collection chamber; 16-Annular conveyor; 161-Support; 162-Annular conveyor track; 17-Double-door heating box; 171-Sliding cover; 172-Fixed box body; 18-CO2 transfer pipe; 19-CO2 collection chamber;

[0046] 2-H2O capture system; 21-H2O collection box; 22-coil; 221-filter; 23-switch; 24-timer switch fan blade; 25-ring heating plate; 26-refrigeration equipment; 27-H2O transfer pipe;

[0047] 3-Methanol synthesis system; 31-High-temperature redox reaction chamber; 311-Outer wall of water injection layer; 312-Cooling water injection layer; 313-Inner wall of chamber; 32-Gas mixing chamber; 33-Gas separation chamber; 331-Parmagnetic rotor; 332-Dimagnetic rotor; 34-O2 transfer pipe; 35-O2 collection chamber; 36-Methanol synthesis chamber; 37-Methanol transfer pipe; 38-Methanol collection tank;

[0048] 4-Supercritical CO2 conversion system; 41-Trough-type supercritical CO2 conversion chamber; 411-Outer wall of the chamber; 412-Supercritical CO2 conversion layer; 413-Inner wall of the chamber; 42-Compressor; 43-Supercritical CO2 insulated pipe; 44-Supercritical CO2 collection chamber; 45-Supercritical CO2 sterilization box;

[0049] 5- CO electroreduction system; 51- Storage tank; 52- Transmission line; 53- H-type electrolytic cell; 54- CO collection chamber;

[0050] 6-Multi-cycle cooling and heating system; 61-Energy storage tank; 62-First water pipe; 63-Second water pipe; 64-Third water pipe; 65-Fourth water pipe; 66-First oil pipe; 67-Second oil pipe;

[0051] 7. Dimethyl carbonate synthesis system; 71-Dimethyl carbonate synthesis chamber; 72-Propeller stirrer; 73-Dimethyl carbonate transfer pipe; 74-Dimethyl carbonate collection chamber;

[0052] 8-Photosensitive Fresnel high-concentration photothermal conversion system; 81-Fresnel mirror module; 82-Photosensitive element; 83-Loading box; 84-Rotating shaft; 85-Bracket; 86-Fixed base; 87-Solar cell. Detailed Implementation

[0053] The invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams, illustrating only the basic structure of the invention in a schematic manner. Therefore, they only show the components relevant to the invention, and the orientations and references (e.g., up, down, left, right, etc.) are only used to aid in the description of the features in the drawings. Therefore, the following specific embodiments are not intended to be limiting, and the scope of the claimed subject matter is defined solely by the appended claims and their equivalents. Example

[0054] like Figure 1As shown, the present invention is a high-concentration photothermal power utilization and multi-product preparation device suitable for space stations, including a recyclable CO2 extraction system 1, an H2O capture system 2, a methanol synthesis system 3, a supercritical CO2 conversion system 4, a CO electroreduction system 5, a multi-cycle cooling and heating system 6, a dimethyl carbonate synthesis system 7, and a photosensitive Fresnel high-concentration photothermal power conversion system 8.

[0055] The output of the recyclable CO2 extraction system 1 is connected to the input of the H2O capture system 2, the methanol synthesis system 3 and the supercritical CO2 conversion system 4, respectively. The output of the H2O capture system 2 is connected to the input of the methanol synthesis system 3. The output of the supercritical CO2 conversion system 4 is connected to the input of the dimethyl carbonate synthesis system 7 and the CO electroreduction system 5, respectively. The output of the methanol synthesis system 3 is connected to the input of the dimethyl carbonate synthesis system 7.

[0056] The photosensitive Fresnel high-concentration photothermal-electric conversion system 8 is used to provide heat for the methanol synthesis system 3 and the supercritical CO2 conversion system 4, and to provide power for the CO electroreduction system 5.

[0057] The multi-cycle cooling and heating system 6 exchanges heat with the recyclable CO2 extraction system 1, the methanol synthesis system 3, the supercritical CO2 conversion system 4, the CO electroreduction system 5, and the dimethyl carbonate synthesis system 7, respectively.

[0058] like Figure 1 and Figure 2 As shown, the recyclable CO2 extraction system 1 includes a CO2 capture chamber 13, a recyclable heating chamber 14 and a NaOH collection chamber 15 connected in sequence through a transmission pipe 11. A loop is provided between the NaOH collection chamber 15 and the CO2 capture chamber 13, and a switch 23 is installed on the loop. A gas-liquid mixing pump 12 is installed on the transmission pipe 11.

[0059] The recirculating heating chamber 14 includes an inverted frustum-shaped funnel 142 at the bottom and a solid-liquid separation filter 141 located above the inverted frustum-shaped funnel 142. The bottom of the recirculating heating chamber 14 is equipped with an annular conveying device 16 that can convey the recirculating heating chamber 14 to the inside of the double-door heating box 17. The annular conveying device 16 includes an annular conveying track 162 and a support bracket 161 for supporting the annular conveying track 162. The support bracket 161 can make the annular conveying track 162 more stable. The double-door heating box 17 includes a fixed box body 172 and a slidable cover plate 171 located on both sides of the fixed box body 172 and slidably connected to it. The slidable cover plate 171 can slide up and down to realize the opening and closing of the fixed box body 172. The gas output end of the double-door heating box 17 is connected to the CO2 collection chamber 19, and the gas output end of the CO2 capture chamber 13 is connected to the H2O capture system 2.

[0060] like Figure 1 and Figure 3 As shown, the H2O capture system 2 includes an H2O collection tank 21. The upper part of the H2O collection tank 21 is provided with a coil 22 and a refrigeration device 26. The coil 22 has several through holes and is equipped with a filter screen 221 inside to prevent solids from flowing out with the airflow. The input end of the coil 22 is connected to the gas output end of the CO2 capture chamber 13, and the output end of the coil 22 extends out of the H2O collection tank 21. Switches 23 are installed at both the input and output ends of the coil 22. A timer switch fan blade 24 is provided in the middle of the H2O collection tank 21, and an annular heating plate 25 is provided at the bottom. The output end of the H2O capture system 2 is connected to the methanol synthesis system 3.

[0061] like Figure 1 , Figure 4 and Figure 5 As shown, the methanol synthesis system 3 includes a high-temperature redox reaction chamber 31, a gas mixing chamber 32, and a gas separation chamber 33 connected in sequence. The input end of the high-temperature redox reaction chamber 31 is connected to the output end of the H2O capture system 2 and the output end of the CO2 collection chamber 19, respectively. The gas separation chamber 33 includes a paramagnetic rotor 331 and a dimagnetic rotor 332. One side of the paramagnetic rotor 331 is connected to the O2 collection chamber 35 through an O2 transmission pipe 34, and one side of the dimagnetic rotor 332 is connected to the methanol synthesis chamber 36. The output end of the methanol synthesis chamber 36 is connected to the methanol collection tank 38 through a methanol transmission pipe 37.

[0062] The high-temperature redox reaction chamber 31 and the methanol synthesis chamber 36 both include an outer wall 311 of the water injection layer, a cooling water injection layer 312 and an inner wall 313 of the chamber, from the outside to the inside.

[0063] like Figure 1 and Figure 6 As shown, the supercritical CO2 conversion system 4 includes a supercritical CO2 conversion chamber 41, a supercritical CO2 collection chamber 44, and a supercritical CO2 sterilization box 45 connected in sequence. The supercritical CO2 conversion chamber 41 has a groove structure and includes an outer wall 411, a supercritical CO2 conversion layer 412, and an inner wall 413 from the outside to the inside. The supercritical CO2 conversion chamber 41 is equipped with a solar cell 87 and a compressor 42. The inner wall 413 is attached to the solar cell 87. The input end of the supercritical CO2 conversion chamber 41 is connected to the CO2 collection chamber 19.

[0064] like Figure 1 As shown, the CO electroreduction system 5 includes a storage tank 51 and an H-type electrolytic cell 53, which are connected by a transmission line 52. One end of the H-type electrolytic cell 53 is connected to the CO collection chamber 54, and the other end is connected to the output end of the supercritical CO2 collection chamber 44.

[0065] like Figure 1 and Figure 7 As shown, the dimethyl carbonate synthesis system 7 includes a dimethyl carbonate synthesis chamber 71, a dimethyl carbonate transfer pipe 73, and a dimethyl carbonate collection chamber 74 connected in sequence. The dimethyl carbonate synthesis chamber 71 is equipped with a propeller-type stirrer 72, and the input end of the dimethyl carbonate synthesis chamber 71 is connected to the supercritical CO2 collection chamber 44 and the methanol collection tank 38, respectively.

[0066] like Figure 1 As shown, the multi-cycle cooling and heating system 6 includes an energy storage tank 61. A first water pipe 62 connects the energy storage tank 61 to the bottom of the supercritical CO2 conversion chamber 41. A second water pipe 63 connects the energy storage tank 61 to the cooling water injection layer of the high-temperature oxidation-reduction reaction chamber 31. A third water pipe 64 connects the energy storage tank 61 to the cooling water injection layer of the methanol synthesis chamber 36. A fourth water pipe 65 connects the energy storage tank 61 to the H-type electrolytic cell 53. A first oil pipe 66 connects the energy storage tank 61 to the dimethyl carbonate synthesis chamber 73. A second oil pipe 67 connects the energy storage tank 61 to the double-door heating box 17. The energy storage tank 61 acts as a central hub in the entire heat exchange process of the device.

[0067] like Figure 1 , Figure 8 and Figure 9 As shown, the photosensitive Fresnel high-concentration photothermal conversion system 8 includes a Fresnel mirror module 81, on which a photosensitive element 82 is mounted, and below it is a carrying box 83. The carrying box 83 houses a high-temperature oxidation-reduction reaction chamber 31 and a solar cell 87, providing a high reaction temperature for the high-temperature oxidation-reduction reaction chamber 31 and converting solar energy into electrical energy to power the H-type electrolytic cell 53 and the cabin facilities. The carrying box 83 is rotatably connected to a bracket 85 via a rotatable shaft 84, and the bracket 85 is fixed to a fixed base 86. The photosensitive element 82 can be adjusted in angle via the rotatable shaft 84 to achieve real-time tracking and continuous, efficient utilization of solar energy. The bracket 85 and the fixed base 86 fix the entire tracking device, ensuring stable and sustainable system operation.

[0068] Working principle and usage process of this invention:

[0069] When the entire device starts working, the ambient gas inside the space capsule is drawn into the CO2 capture chamber 13 by the gas-liquid mixing pump 12 through the transmission pipe 11. At this time, the switch 23 in the recyclable CO2 extraction system 1 is turned off. The NaOH originally carried in the CO2 capture chamber 13 reacts with the CO2 in the drawn-in gas to generate Na2CO3 and H2O. The remaining gas is then sent from the output gas-liquid mixing pump 12 through the transmission pipe 11 to the H2O collection tank 21.

[0070] The mixed liquid in the CO2 capture chamber 13 is pumped to the recirculating heating chamber 14 by the gas-liquid mixing pump 12, which accelerates the fluid flow. The recirculating heating chamber 14 originally contained solid CaO. The mixed liquid from the CO2 capture chamber 13 reacts with CaO to generate CaCO3 and NaOH. The solid-liquid separation filter 141 separates the solid and liquid. The mixed solution of NaOH and a small amount of Na2CO3 enters the NaOH collection chamber 15 to complete the collection of NaOH. At this time, the switch 23 in the recirculating CO2 extraction system 1 is turned on. The NaOH and a small amount of Na2CO3 in the NaOH collection chamber 15 return to the CO2 capture chamber 13 via the gas-liquid mixing pump 12, thus completing the recycling of NaOH.

[0071] At this time, the gas-liquid mixing pumps 12 at both ends of the recirculating heating chamber 14 are turned off, and the liquid stops flowing. The recirculating heating chamber 14 is then conveyed to the double-door heating box 17 via the annular conveying track 162 on the annular conveying device 16. After the recirculating heating chamber 14 stops, the sliding cover plates 171 on both sides of the double-door heating box 17 are lowered to close the box. At this time, the gas-liquid mixing pump 12 on the second oil pipe 67 in the multi-circulation cooling and heating system 6 and the gas-liquid mixing pump 12 on the CO2 transmission pipe 18 above the double-door heating box 17 start working simultaneously. The solid CaCO3 and a small amount of CaO on the solid-liquid separation filter 141 of the recirculating heating chamber 14 in the double-door heating box 17 are heated to generate CaO and CO2. The CO2 is passed to the CO2 collection chamber 19 via the CO2 transmission pipe 18. The sliding cover plates 171 on both sides of the double-door heating box 17 are opened again, and the recirculating heating chamber 14 carries the remaining CaO back to its original position via the annular conveying device 16 to complete the extraction of CO2.

[0072] Turn on the switches 23 on both sides of the H2O collection box 21. The refrigeration equipment 26 cools the mixture to -20°C. The H2O in the mixed gas at the input end becomes solid and is intercepted by the filter screen 221 inside the coil 22 with through holes. The remaining gas is discharged through the gas-liquid mixing pump 12. After a period of time, turn off the input switch 23 of the H2O collection box 21 and keep the output switch 23 open. After the excess gas in the coil 22 is discharged by the gas-liquid mixing pump 12 at the output end, turn off the output switch 23. At this time, the coil 22 is a closed pipe. There is no excess gas in the pipe and the solid H2O is attached to the filter screen 221 inside the coil 22. Turn on the timer switch fan blade 24. The annular heating plate 25 heats the solid H2O to liquefy and then vaporize it. At this time, the gas-liquid mixing pump 12 located on the H2O transmission pipe 27 at the lower output end of the H2O collection box 21 starts to work and delivers the H2O gas to the high-temperature oxidation-reduction reaction chamber 31 to complete the extraction of H2O.

[0073] The gas-liquid mixing pump 12 delivers CO2 and H2O from the CO2 collection chamber 19 and the H2O collection box 21 to the high-temperature redox reaction chamber 31. At the same time, the gas-liquid mixing pump 12 on the second water pipe 63 in the multi-circulation cooling and heating system 6 starts to work. The high-temperature redox reaction chamber 31 is mounted on the loading box 83 in the photosensitive Fresnel high-concentration photothermal conversion system 8 and is heated by the Fresnel mirror module 81. High temperature and pressure are generated in the high-temperature redox reaction chamber 31. H2O and CO2 are reduced to CO and H2 at high temperature. At the same time, at high temperature, vapor decomposition is accompanied by O2 and H2. At the same time, the gas-liquid mixing pump 12 on the second water pipe 63 accelerates the flow of H2O in the pipe and cools the chamber appropriately through heat exchange in the energy storage box 61. The mixed gas generated in the high-temperature redox reaction chamber 31 is drawn into the gas mixing chamber 32 by the gas-liquid mixing pump 12. After being fully mixed and appropriately cooled, it enters the gas separation chamber 33 through the transmission pipe 11 with the gas-liquid mixing pump 12.

[0074] Since CO and H2 are diamagnetic and O2 is paramagnetic, the paramagnetic rotor 331 in the gas separation chamber 33 separates O2 to the O2 collection chamber 35; the diamagnetic rotor 332 separates CO and H2 to the methanol synthesis chamber 36 via the gas-liquid mixing pump 12, thus completing the separation of the mixed gas; CO and H2 are fully mixed in the methanol synthesis chamber 36 and methanol is generated under high temperature and high pressure catalysis. At the same time, the third water pipe 64 cools the chamber appropriately via the energy storage tank 61 and the gas-liquid mixing pump 12, and the methanol is transported to the methanol collection tank 38 via the methanol transmission pipe 37 with the gas-liquid mixing pump 12, thus completing the preparation of methanol;

[0075] Another portion of the CO2 in the CO2 collection chamber 19 is transported by the gas-liquid mixing pump 12 to the supercritical CO2 conversion layer 412 of the trough-type supercritical CO2 conversion chamber 41. The supercritical CO2 conversion layer 412 is a four-sided surrounding sandwich without a bottom. Since the solar cell 87 is mounted in the groove of the trough-type supercritical CO2 conversion chamber 41 and the inner wall 413 of the chamber is in close contact with the cell, the supercritical CO2 conversion layer 412 is heated. At the same time, the compressor 42 inside the layer pressurizes it. When the inside of the supercritical CO2 conversion layer 412 reaches 31°C and 7.3MPa, CO2 can be converted into supercritical CO2 and transported to the supercritical CO2 collection chamber 44 by the supercritical CO2 heat insulation pipe 43 with the gas-liquid mixing pump 12, thus completing the collection of supercritical CO2 and also appropriately cooling the cell.

[0076] Part of the supercritical CO2 in the supercritical CO2 collection chamber 44 is supplied to the supercritical CO2 sterilization box 45 for sterilization of food, instruments, etc., while the other part is transferred through the transmission pipe 11 to the energy storage box 61 for heat exchange. When the temperature is below 31℃, the supercritical CO2 is converted into ordinary CO2 and sent to the H-type electrolytic cell 53. The electrolysis process is based on the electrochemical reduction of CO2 using a KOH / methanol mixed electrolyte. Since the maximum Faraday efficiency of CO generation can reach more than 55% when the methanol concentration in the mixed electrolyte is slightly higher at around 35℃, and in order to solve the problem of temperature instability, a fourth water pipe 65 is added, which passes through the energy storage box 61 and then through the H-type electrolytic cell 53, so that the electrolyte temperature is continuously controlled at around 35℃, and then flows back to the energy storage box 61 to form a closed-loop heat-assisted pipeline. The battery storage box 51 is powered by solar cells 87. CO is transported to the CO collection chamber 54 through the gas-liquid mixing pump 12 and the transmission pipe 11 to complete the preparation and collection of CO.

[0077] Another portion of the supercritical CO2 in the supercritical CO2 collection chamber 44 is transported to the dimethyl carbonate synthesis chamber 71 via the supercritical CO2 insulated pipe 43 equipped with a gas-liquid mixing pump 12. In the dimethyl carbonate synthesis chamber 71, methanol from the methanol collection tank 38 is mixed with supercritical CO2 from the supercritical CO2 collection chamber 44. The first oil pipe 66 of the multi-cycle cooling and heating system 6 provides heat to it via the energy storage tank 61. The pressure equipment and the first oil pipe 66 in the dimethyl carbonate synthesis chamber 71 make the chamber environment reach 20MPa and 150℃. The propeller stirrer 72 fully mixes the mixture to generate dimethyl carbonate, which is then transported to the dimethyl carbonate collection chamber 74 via the dimethyl carbonate transfer pipe 73 and the gas-liquid mixing pump 12 to complete the preparation of dimethyl carbonate.

[0078] Considering the scarcity of space resources and adhering to the concept of sustainability, the device is equipped with a photosensitive Fresnel high-concentration thermoelectric conversion system 8 to continuously provide thermal and electrical energy to the entire device. The photosensitive Fresnel high-concentration thermoelectric conversion system 8 consists of two Fresnel high-concentration modules. The difference is that one type has a solar cell 87 installed in the cargo box 83 to convert solar energy into electrical energy to power the H-type electrolytic cell 53 and the cabin facilities, while the other type has a high-temperature oxidation-reduction reaction chamber 31 installed in the cargo box 83 to provide a higher reaction temperature. At the same time, the system is equipped with a photosensitive element 82, and the angle can be adjusted by a rotatable shaft 84 to achieve real-time light tracking. The entire light tracking device is fixed by a bracket 85 and a fixed base 86 to ensure stable and sustainable operation of the system.

[0079] The above description, based on the preferred embodiments of the present invention, provides inspiration. Those skilled in the art can make various changes and modifications without departing from the inventive concept. The technical scope of this invention is not limited to the contents of the specification but must be determined according to the claims.

Claims

1. A device for high-concentration solar thermal power utilization and multi-product preparation suitable for space stations, characterized in that: It includes a recyclable CO2 extraction system (1), an H2O capture system (2), a methanol synthesis system (3), a supercritical CO2 conversion system (4), a CO electroreduction system (5), a multi-cycle cooling and heating system (6), a dimethyl carbonate synthesis system (7), and a photosensitive Fresnel high-concentration photothermal-electric conversion system (8). The output of the recyclable CO2 extraction system (1) is connected to the input of the H2O capture system (2), the methanol synthesis system (3) and the supercritical CO2 conversion system (4), respectively. The output of the H2O capture system (2) is connected to the input of the methanol synthesis system (3). The output of the supercritical CO2 conversion system (4) is connected to the input of the dimethyl carbonate synthesis system (7) and the CO electroreduction system (5), respectively. The output of the methanol synthesis system is connected to the input of the dimethyl carbonate synthesis system (7). The photosensitive Fresnel high-concentration photothermal-electric conversion system (8) is used to provide heat for the methanol synthesis system (3) and the supercritical CO2 conversion system (4), and to provide power for the CO electroreduction system (5); The multi-cycle cooling and heating system (6) exchanges heat with the recyclable CO2 extraction system (1), the methanol synthesis system (3), the supercritical CO2 conversion system (4), the CO electroreduction system (5), and the dimethyl carbonate synthesis system (7), respectively. The methanol synthesis system (3) includes a high-temperature redox reaction chamber (31), a gas mixing chamber (32), and a gas separation chamber (33) connected in sequence. The gas separation chamber (33) includes a paramagnetic rotor (331) and a dimagnetic rotor (332). An O2 collection chamber (35) is connected to one side of the paramagnetic rotor (331), and a methanol synthesis chamber (36) is connected to one side of the dimagnetic rotor (332). The output end of the methanol synthesis chamber (36) is connected to a methanol collection tank (38) through a methanol transmission pipe (37). The high-temperature redox reaction chamber (31) and the methanol synthesis chamber (36) both include, from the outside to the inside, an outer wall of the water injection layer (311), a cooling water injection layer (312), and an inner wall of the chamber (313).

2. The apparatus for high-concentration solar thermal power utilization and multi-product preparation suitable for space stations according to claim 1, characterized in that: The recyclable CO2 extraction system (1) includes a CO2 capture chamber (13), a recyclable heating chamber (14) and a NaOH collection chamber (15) connected in sequence through a transmission pipe (11), and a loop is provided between the NaOH collection chamber (15) and the CO2 capture chamber (13), with a switch (23) installed on the loop, and a gas-liquid mixing pump (12) installed on the transmission pipe (11). The recirculating heating chamber (14) includes an inverted frustum-shaped funnel (142) at the bottom and a solid-liquid separation filter (141) above the inverted frustum-shaped funnel (142). The bottom of the recirculating heating chamber (14) is equipped with an annular conveying device (16) that can convey the recirculating heating chamber (14) to the inside of the double-door heating box (17). The annular conveying device (16) includes an annular conveying track (162) and a support bracket (161) for supporting the annular conveying track (162). The double-door heating box (17) includes a fixed box body (172) and a sliding cover plate (171) located on both sides of the fixed box body (172) and slidably connected thereto. The gas output end of the double-door heating box (17) is connected to the CO2 collection chamber (19), and the gas output end of the CO2 capture chamber (13) is connected to the H2O capture system (2).

3. The apparatus for high-concentration solar thermal power utilization and multi-product preparation suitable for space stations according to claim 2, characterized in that: The H2O capture system (2) includes an H2O collection box (21). The upper part of the H2O collection box (21) is provided with a coil (22) and a refrigeration device (26). The coil (22) has several through holes and a filter screen (221) is installed inside. The input end of the coil (22) is connected to the gas output end of the CO2 capture chamber (13). The output end of the coil (22) extends out of the H2O collection box (21). Switches (23) are installed at both the input and output ends of the coil (22). A timer switch fan blade (24) is provided in the middle of the H2O collection box (21), and a ring heating plate (25) is provided at the bottom. The output end of the H2O capture system (2) is connected to the methanol synthesis system (3).

4. The high-concentration solar thermal power utilization and multi-product preparation device suitable for space stations as described in claim 3, characterized in that: The supercritical CO2 conversion system (4) includes a supercritical CO2 conversion chamber (41), a supercritical CO2 collection chamber (44), and a supercritical CO2 sterilization box (45) connected in sequence. The supercritical CO2 conversion chamber (41) is a groove structure, including an outer wall (411), a supercritical CO2 conversion layer (412), and an inner wall (413) of the chamber from the outside to the inside. The supercritical CO2 conversion chamber (41) is equipped with a solar cell (87) and a compressor (42). The inner wall (413) of the chamber is attached to the solar cell (87). The input end of the supercritical CO2 conversion chamber (41) is connected to the CO2 collection chamber (19).

5. The apparatus for high-concentration solar thermal power utilization and multi-product preparation suitable for space stations as described in claim 4, characterized in that: The CO electroreduction system (5) includes a battery storage box (51) and an H-type electrolytic cell (53). One end of the H-type electrolytic cell (53) is connected to the CO collection chamber (54), and the other end is connected to the output end of the supercritical CO2 collection chamber (44).

6. The apparatus for high-concentration solar thermal power utilization and multi-product preparation suitable for space stations as described in claim 5, characterized in that: The dimethyl carbonate synthesis system (7) includes a dimethyl carbonate synthesis chamber (71), a dimethyl carbonate transfer pipe (73), and a dimethyl carbonate collection chamber (74) connected in sequence. The dimethyl carbonate synthesis chamber (71) is equipped with a propeller stirrer (72), and the input end of the dimethyl carbonate synthesis chamber (71) is connected to the supercritical CO2 collection chamber (44) and the methanol collection tank (38), respectively.

7. The apparatus for high-concentration solar thermal power utilization and multi-product preparation suitable for space stations as described in claim 6, characterized in that: The multi-cycle cooling and heating system (6) includes an energy storage tank (61), a first water pipe (62) connecting the energy storage tank (61) to the bottom of the supercritical CO2 conversion chamber (41), a second water pipe (63) connecting the energy storage tank (61) to the cooling water injection layer (312) of the high-temperature oxidation-reduction reaction chamber (31), a third water pipe (64) connecting the energy storage tank (61) to the cooling water injection layer of the methanol synthesis chamber (36), a fourth water pipe (65) connecting the energy storage tank (61) to the H-type electrolytic cell (53), a first oil pipe (66) connecting the energy storage tank (61) to the dimethyl carbonate synthesis chamber (73), and a second oil pipe (67) connecting the energy storage tank (61) to the double-door heating box (17).

8. The apparatus for high-concentration solar thermal power utilization and multi-product preparation suitable for space stations as described in claim 4, characterized in that: The photosensitive Fresnel high-concentration photothermal conversion system (8) includes a Fresnel mirror module (81), on which a photosensitive element (82) is mounted and a loading box (83) is provided below it. The loading box (83) contains a high-temperature oxidation-reduction reaction chamber (31) and a solar cell (87), and the loading box (83) is rotatably connected to a fixed base (86) via a rotatable shaft (84).

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