CO2 catalytic conversion life support verification system

Abstract

A CO2 catalytic conversion life support verification system, including gas pressure regulating module, catalytic reaction module, online detection module, direct current secondary conversion power supply, control module and structure module. The present application adopts modular assembly design, and controllably converts carbon dioxide into oxygen and carbon-containing fuel, can realize wide range, high precision independent continuous regulation of gas and liquid flow in space unmanned environment, through the catalytic reaction module, the product gas and liquid can be separated, collected, and through the online monitoring module, the high precision real-time online measurement and analysis of the tested device and the reaction product are realized. The present application can realize high efficient energy conversion efficiency, through gas driven liquid, realizes high precision control of liquid, and has small size, high sensitivity detection capacity.

Description

TECHNICAL FIELD

[0001] The application relates to a CO2 catalytic conversion life support verification system and belongs to the technical field of industrial machine design. BACKGROUND

[0002] Whether it is the current space station project or the future manned moon landing, fire, solving the life support problem of astronauts is the top priority. In order to maintain the normal work of astronauts, sufficient water, food and oxygen need to be provided, and the metabolic amount of astronauts is about one kilogram of oxygen and water. Therefore, to realize long-term extraterrestrial survival means that a large amount of living materials need to be provided, which represents a huge launch cost.

[0003] Since the development of manned space technology, the use of carbon dioxide reduction to prepare oxygen has always been of great concern. In addition to extraterrestrial artificial photosynthesis technology, there are many projects related to carbon dioxide reduction to prepare oxygen. At present, the international space station uses water electrolysis to supplement oxygen for astronauts, and in view of the in-situ resource utilization of space station and Mars CO2, high-temperature thermal reduction or electrolysis technology is being developed to reduce carbon dioxide to oxygen, but the operating conditions are harsh (high temperature and high pressure), and the energy consumption is high. These technologies still have their own problems and cannot completely solve the problem of carbon dioxide utilization.

[0004] Extraterrestrial artificial photosynthesis is a chemical process that simulates the natural photosynthesis of green plants on earth and can controllably convert carbon dioxide into oxygen and carbon-containing fuel through photoelectrocatalytic acceleration. It not only can convert the carbon dioxide produced by human respiration into oxygen through artificial photosynthesis technology to realize the recycling of waste in-situ resources in a closed space, greatly reducing the supply demand of materials for manned space stations and manned deep space ships, but also can use the abundant carbon dioxide and water resources in the atmospheric environment of Mars and other extraterrestrial planets to produce oxygen and fuel, realizing the extraterrestrial survival of humans on other planets and supporting sustainable manned deep space exploration missions.

[0005] In view of the urgency of in-situ resource utilization for deep space exploration and the uncertainty of existing mechanisms, it is urgent to design a high-efficiency CO2 catalytic conversion life support verification system suitable for extraterrestrial survival, to verify the catalytic conversion of oxygen production, carbon dioxide reduction and other catalytic conversions under the conditions of light / heat / electricity multi-field coupling under the conditions of space complex environment and solar radiation spectrum; to study the catalytic reaction efficiency of gas-liquid two-phase under microgravity conditions, to complete the collection of reaction products, and to verify the environmental adaptability, key component stability and working time of the overall technology and test device. SUMMARY

[0006] The purpose of the present application is to provide a CO2 catalytic conversion life support verification system, which adopts modular assembly design, can realize autonomous intelligent catalytic reaction capability in space environment, realizes high-efficiency energy conversion efficiency, and realizes high-precision control of liquid.

[0007] The above-mentioned objectives of the present invention are mainly achieved through the following technical solutions:

[0008] A CO2 catalytic conversion life support verification system includes a gas supply pressure regulation module, a catalytic reaction module, an online detection module, a DC secondary conversion power supply, and a controller module; wherein:

[0009] The gas supply pressure regulating module receives instructions from the controller module, inputs the stored CO2 gas and sodium bicarbonate electrolyte solution into the catalytic reaction module, regulates the CO2 gas pressure and flow rate, and sends the CO2 gas pressure data to the controller module.

[0010] The catalytic reaction module is used to receive instructions from the controller module and react CO2 gas and sodium bicarbonate electrolyte solution to realize the conversion of CO2 to oxygen and the separate collection of gaseous and liquid products after the reaction. It also performs pressure detection of reactant and product gases and sends the pressure data to the controller module.

[0011] The online detection module is used to detect the composition and reaction efficiency of the reaction products of the catalytic reaction module after receiving instructions from the controller module, and send the result data to the controller module.

[0012] The DC-DC secondary converter power supply is used to power the gas supply pressure regulating module, catalytic reaction module, online detection module and controller module, and outputs current at different voltages;

[0013] The controller module is used to receive command signals from the host computer, send control commands to the gas supply pressure regulating module, catalytic reaction module and online detection module, control the opening and closing of the gas supply pressure regulating module, catalytic reaction module and online detection module according to the task flow, and store the experimental data sent by the gas supply pressure regulating module, catalytic reaction module and online detection module.

[0014] The gas supply and pressure regulation module includes a gas source, a solenoid valve, a storage tank, a pressure sensor, a self-locking valve, and a mass flow meter. The gas source supplies CO2 gas to the storage tank. The solenoid valve regulates the pressure and flow rate of the CO2 gas output from the gas source. The pressure sensor detects the pressure of the CO2 gas and sends the data to the controller module. The storage tank contains a sodium bicarbonate electrolyte solution. When CO2 gas enters the storage tank, it compresses the electrolyte solution and flows into the catalytic reaction module. The self-locking valve controls the CO2 gas flow rate output from the gas source, and the mass flow meter detects the CO2 gas flow rate entering the catalytic reaction module.

[0015] The storage tank has a bladder-like structure with an internal diaphragm to isolate liquids and gases and prevent irregular movement of gases in the liquid path.

[0016] The catalytic reaction module includes a quick disconnect device, a pressure sensor, a three-way valve, a collection bag, a reactor, an electrical connector, and a self-locking valve. The quick disconnect device, three-way valve, and self-locking valve are used to connect and disconnect the catalytic reaction module from the gas supply pressure regulating module and the online detection module. The electrical connector centralizes all electrical interfaces of the catalytic reaction module. The pressure sensor is used to detect the pressure of reactant and product gases and send the pressure data to the controller module. The CO2 gas output from the gas source and the sodium bicarbonate electrolyte solution output from the storage tank enter the reactor for catalytic reaction. The gaseous and liquid products of the reaction enter the collection bag respectively, realizing the separation and collection of reaction products.

[0017] The replacement method for the catalytic reaction module is as follows: disconnect the quick-connector to disconnect the flow path between the gas supply pressure regulating module and the catalytic reaction module; disconnect the quick-connector to disconnect the online detection module from the catalytic reaction module, and disconnect the electrical connector to disconnect the entire flow path; then disconnect the catalytic reaction module screws from the structural module to replace the entire catalytic reaction module.

[0018] The catalytic reaction module also includes a CCD camera to monitor the microchannels inside the reactor, enabling visual observation of the reaction process.

[0019] The online detection module includes a mass spectrometer and a spectrometer; the mass spectrometer is used to detect the composition and reaction efficiency of gaseous products, and the spectrometer is used to detect the composition and reaction efficiency of liquid products. The detection results of the mass spectrometer and the spectrometer are respectively sent to the controller module.

[0020] It also includes a structural module, which is a shell structure used to house the gas supply pressure regulating module, catalytic reaction module, online detection module, DC secondary conversion power supply and controller module.

[0021] The structural module includes an upper cover plate, a left side plate, a bottom plate, a front cover plate, a right side plate, a rear cover plate, a packaging plate, and an auxiliary bracket. The upper cover plate, left side plate, bottom plate, front cover plate, right side plate, and rear cover plate are connected by screws to form an overall external structure. The packaging plate is fixed to the front cover plate by a threaded connection for fixing and protecting the system.

[0022] The DC secondary converter power supply has a 100V DC input power supply and outputs current at different voltages such as 5V, 12V, and 24V.

[0023] Compared with the prior art, the present invention has at least the following beneficial effects:

[0024] (1) The CO2 catalytic conversion life support verification system of the present invention adopts a modular assembly design, which allows for convenient replacement of catalytic reaction components; the present invention can realize autonomous intelligent catalytic reaction capability in space environment and achieve high energy conversion efficiency.

[0025] (2) The CO2 catalytic conversion life support verification system of the present invention can realize the independent and continuous adjustment of gas and liquid flow rates with a wide range and high precision in an unmanned space environment. The product gas and liquid can be separated and collected through the catalytic reaction module, and the test device and reaction products can be measured and analyzed in real time with high precision through the online monitoring module.

[0026] (3) The liquid storage tank of the CO2 catalytic conversion life support verification system of the present invention is preferably a capsule structure, which can prevent irregular movement of gas in the liquid path and ensure high-precision control of the liquid. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the CO2 catalytic conversion life support verification system of the present invention;

[0028] Figure 2 This is a diagram of the internal structure of the CO2 catalytic conversion life support verification system of the present invention;

[0029] Figure 3 This is a diagram showing the composition of the gas supply pressure regulation module of the CO2 catalytic conversion life support verification system of the present invention;

[0030] Figure 4 This is a diagram showing the composition of the catalytic reaction module of the CO2 catalytic conversion life support verification system of the present invention;

[0031] Figure 5 This is an overall view of the CO2 catalytic conversion life support verification system of the present invention. Detailed Implementation

[0032] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0033] like Figure 1 As shown, the principle of the CO2 catalytic conversion life support verification system of this invention is as follows: The gas supply pressure regulation module 1 regulates the pressure and flow rate, inputting CO2 gas and sodium bicarbonate electrolyte solution into reactors 219-220 in the catalytic reaction module 2. Under the influence of a light source, CO2 is converted into oxygen. After the reaction, the reaction products are collected by a product collection device. Simultaneously, the reaction products are detected by a spectrometer 32 and a mass spectrometer 31. The DC secondary conversion power supply 4 receives a 100V DC power supply as input and outputs power to the controller module 5. Based on the embedded working mode code, the controller module 5 autonomously controls the gas supply pressure regulation module 1, the catalytic reaction module 2, and the online detection module 3, enabling the system to operate autonomously.

[0034] like Figure 2As shown, the present invention provides a high-efficiency CO2 catalytic conversion life support verification system suitable for extraterrestrial survival, comprising: a gas supply pressure regulation module 1, a catalytic reaction module 2, an online detection module 3, a DC secondary conversion power supply 4, and a control module 5.

[0035] The online detection module 3 mainly includes a mass spectrometer 31 and a spectrometer 32. The mounting interface of the spectrometer is fixed to the side plate of the structural module 6. The mounting interface of the mass spectrometer 31 is also fixed to the bottom plate of the structural module 6. The flow path interface is connected to the catalytic reaction module through a quick disconnect connector to realize the detection of the fluid working medium.

[0036] The DC secondary converter power supply 4 receives a 100V DC input and outputs current at different voltages such as 5V, 12V, and 24V to meet the voltage requirements of different components. It is mounted and fixed to the top plate of the structural module 6 via an interface.

[0037] The electrical interfaces of controller module 5 include power supply, detection, and communication, and its mounting interface is installed on the base plate of structural module 6.

[0038] like Figure 3 As shown, the gas supply and pressure regulating module 1 includes a gas source 11, a high-frequency solenoid valve 12, a storage tank 13, a pressure sensor 14, a self-locking valve 15, and a mass flow meter 16. These components are fixed to the base plate 63, right side plate 65, and other structures via mounting holes or brackets. The pressure sensor 14 is installed at the outlet of the gas source 11 and is connected to the solenoid valve 12 via a pipeline. The high-frequency drive enables precise control of the gas source flow. The solenoid valve 12 is connected to the storage tank 13 via a metal pipeline. The storage tank 13 has a bladder-like structure and stores an electrolyte solution inside. When the gas source 11 supplies gas, the gas is supplied to the storage tank 13. Through the isolation of the diaphragm in the storage tank 13, the liquid is supplied by gas. At the same time, the mass flow meter 16 detects the flow rate entering the catalytic reaction module 2.

[0039] like Figure 4 As shown, the catalytic reaction module 2 of this invention includes: 8 quick disconnectors 201-208, 4 pressure sensors 209-212, 2 three-way valves 213-214, 4 collection bags 215-218, 2 reactors 219-220, a CCD camera 222, 8 self-locking valves 223-230, and 1 electrical connector 221. The gas supply pressure regulating module 1 has four outlet flow paths, which are respectively connected to quick disconnectors 201, 202, 203, and 204, and the four flow paths enter the cathode and anode of reactors 219 and 220, respectively.

[0040] The anode outlet of reactor 219 is connected to a tee 213. One tee leads to a quick disconnector 205, then through a self-locking valve 227, and finally to spectrometer 32 and mass spectrometer 31. The outlet of mass spectrometer 31 is then connected to a self-locking valve 229, before entering the quick disconnector 207 again, and finally the collection bag 215. The other tee is directly connected to a self-locking valve 223 and also enters the collection bag 215. The cathode outlet of reactor 219 is connected to a self-locking valve 224 and directly enters the collection bag 216.

[0041] The cathode outlet of reactor 220 is connected to a tee 214. One branch enters the quick disconnector 206, passes through the self-locking valve 228, and then connects to the mass spectrometer 31. The outlet of mass spectrometer 31 is then connected to the self-locking valve 230, enters the quick disconnector 208, and finally enters the collection bag 217. The other branch is connected to the self-locking valve 225 and then enters the collection bag 217. The anode outlet of reactor 220 is connected to the self-locking valve 226 and then directly enters the collection bag 218.

[0042] The catalytic reaction module 2 centralizes all electrical interfaces to the electrical connector 221 via cables, and integrates all structures and individual units onto the support plate 231. The support plate 231 is customized according to the installation interface and fixing requirements of each individual unit.

[0043] like Figure 5 The diagram shows a structural module of a CO2 catalytic conversion life support verification system according to the present invention. Structural module 6 includes an upper cover plate 61, a left side plate 62, a bottom plate 63, a front cover plate 64, a right side plate 65, a rear cover plate 66, and an encapsulation plate 67, as well as related components. The upper cover plate 61, left side plate 62, bottom plate 63, front cover plate 64, right side plate 65, and rear cover plate 66 are connected by screws to form the overall external structure of the verification system. The encapsulation plate 67 is threadedly fixed to the front cover plate 64. The internal components, including the gas supply pressure regulating module 1, catalytic reaction module 2, online detection module 3, DC secondary conversion power supply 4, and control module 5, are all threadedly connected and installed on the respective plates of structural module 6, ensuring the reliability and stability of the installation.

[0044] The CO2 catalytic conversion life support verification system of this invention can replace the catalytic reaction module 2. By opening the encapsulation plate 67 and disconnecting quick disconnectors 201, 202, 203, and 204, the flow path between the gas supply pressure regulating module 1 and the catalytic reaction module 2 is disconnected. By disconnecting quick disconnectors 205, 206, 207, and 208, the online detection module 3 is disconnected from the catalytic reaction module 2. By disconnecting the electrical connector 221, the entire flow path is disconnected. Finally, by disconnecting the screws of the catalytic reaction module 2 from the structural module 6, the entire catalytic reaction module 2 can be replaced.

[0045] The above description is only the best specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in the present invention should be included within the protection scope of the present invention.

[0046] The contents not described in detail in this specification are common knowledge to those skilled in the art.

Claims

1. A life support verification system for CO2 catalytic conversion, characterized in that: It includes a gas supply pressure regulating module (1), a catalytic reaction module (2), an online detection module (3), a DC secondary conversion power supply (4), and a controller module (5); wherein: The gas supply pressure regulating module (1) is used to receive the instructions sent by the controller module (5), input the stored CO2 gas and sodium bicarbonate electrolyte solution into the catalytic reaction module (2), and simultaneously regulate the CO2 gas pressure and flow rate, and send the CO2 gas pressure data to the controller module (5). The catalytic reaction module (2) is used to receive instructions from the controller module (5) and then react CO2 gas and sodium bicarbonate electrolyte solution to realize the conversion of CO2 to oxygen and the separate collection of gaseous and liquid products after the reaction. It also performs pressure detection of reactants and product gases and sends the pressure data to the controller module (5). The online detection module (3) is used to detect the composition and reaction efficiency of the reaction products of the catalytic reaction module (2) after receiving the instructions sent by the controller module (5), and send the result data to the controller module (5); The DC secondary converter power supply (4) is used to supply power to the gas supply pressure regulating module (1), the catalytic reaction module (2), the online detection module (3) and the controller module (5), and output currents of different voltages; The controller module (5) is used to receive instruction signals from the host computer, send control instructions to the gas supply pressure regulating module (1), the catalytic reaction module (2) and the online detection module (3), control the opening and closing of the gas supply pressure regulating module (1), the catalytic reaction module (2) and the online detection module (3) according to the task flow, and store the experimental data sent by the gas supply pressure regulating module (1), the catalytic reaction module (2) and the online detection module (3); The gas supply pressure regulating module (1) includes a gas source (11), a solenoid valve (12), a storage tank (13), a pressure sensor (14), a self-locking valve (15), and a mass flow meter (16); wherein, the gas source (11) is used to supply CO2 gas to the storage tank (13), the solenoid valve (12) regulates the output CO2 gas pressure and flow rate of the gas source (11), the pressure sensor (14) detects the pressure of CO2 gas and sends the data to the controller module (5), the storage tank (13) stores sodium bicarbonate electrolyte solution, CO2 gas enters the storage tank (13) and compresses the electrolyte solution to flow into the catalytic reaction module (2), the self-locking valve (15) is used to control the output CO2 gas flow rate of the gas source (11), and the mass flow meter (16) is used to detect the CO2 gas flow rate entering the catalytic reaction module (2); The storage tank (13) has a bladder-like structure with an internal diaphragm to isolate liquid and gas and prevent irregular movement of gas in the liquid path.

2. The CO2 catalytic conversion life support verification system according to claim 1, characterized in that: The catalytic reaction module (2) includes a quick disconnect device (201-208), a pressure sensor (209-212), a three-way valve (213-214), a collection bag (215-218), a reactor (219-220), an electrical connector (221), and a self-locking valve (223-230); wherein the quick disconnect device (201-208), the three-way valve (213-214), and the self-locking valve (223-230) are used to realize the connection between the catalytic reaction module (2), the gas supply pressure regulating module (1), and the online detection module (3). Connection and disconnection; the electrical connector (221) is used to centralize all electrical interfaces of the catalytic reaction module (2), the pressure sensor (209-212) is used to detect the pressure of the reactant and product gases and send the pressure data to the controller module (5), the CO2 gas output from the gas source (11) and the sodium bicarbonate electrolyte solution output from the storage tank (13) enter the reactor (219-220) for catalytic reaction, and the gaseous product and liquid product of the reaction enter the collection bag (215-218) respectively to realize the separation and collection of the reaction products.

3. The CO2 catalytic conversion life support verification system according to claim 2, characterized in that: The replacement method of the catalytic reaction module (2) is as follows: disconnect the quick disconnector (201-204) to disconnect the flow path between the gas supply pressure regulating module (1) and the catalytic reaction module (2); disconnect the quick disconnector (205-208) to disconnect the online detection module (3) from the catalytic reaction module (2), disconnect the electrical connector (221) to disconnect the entire flow path, and then disconnect the catalytic reaction module screw from the structural module (6) to replace the entire catalytic reaction module (2).

4. The CO2 catalytic conversion life support verification system according to claim 2, characterized in that: The catalytic reaction module (2) also includes a CCD camera (222) to monitor the microchannels in the reactor (219-220), enabling visual observation of the reaction process.

5. The CO2 catalytic conversion life support verification system according to claim 1, characterized in that: The online detection module (3) includes a mass spectrometer (31) and a spectrometer (32); wherein the mass spectrometer (31) is used to detect the composition and reaction efficiency of gaseous products, and the spectrometer (32) is used to detect the composition and reaction efficiency of liquid products. The detection results of the mass spectrometer (31) and the spectrometer (32) are respectively sent to the controller module (5).

6. The CO2 catalytic conversion life support verification system according to claim 1, characterized in that: It also includes a structural module (6), which is a shell structure used to house the gas supply pressure regulating module (1), the catalytic reaction module (2), the online detection module (3), the DC secondary conversion power supply (4), and the controller module (5).

7. The CO2 catalytic conversion life support verification system according to claim 6, characterized in that: The structural module (6) includes an upper cover plate (61), a left side plate (62), a bottom plate (63), a front cover plate (64), a right side plate (65), a rear cover plate (66), an encapsulation plate (67), and an auxiliary bracket; wherein the upper cover plate (61), the left side plate (62), the bottom plate (63), the front cover plate (64), the right side plate (65), and the rear cover plate (66) are connected by screws to form an overall external structure, and the encapsulation plate (67) is fixed to the front cover plate (64) by threaded connection for fixing and protecting the system.

8. The CO2 catalytic conversion life support verification system according to claim 1, characterized in that: The input power supply of the DC secondary converter (4) is a 100V DC power supply, and the output is a current with different voltages of 5V, 12V and 24V.

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