Life support verification system for CO2 catalytic conversion

Abstract

A CO2 catalytic conversion life support verification system comprises a gas supply pressure regulating module, a catalytic reaction module, an online detection module, a direct current secondary conversion power supply, a control module and a structure module. The modular assembly design is adopted, carbon dioxide is controllably converted into oxygen and carbon-containing fuel, wide-range and high-precision gas and liquid flow independent continuous adjustment under the space unmanned environment can be achieved, product gas and liquid can be separated and collected through the catalytic reaction module, and the gas and liquid separation efficiency is improved. And high-precision real-time on-line measurement and analysis of the tested device and the reaction product are realized through the on-line monitoring module. High energy conversion efficiency can be achieved, liquid is driven by gas, high-precision control over the liquid is achieved, and meanwhile the gas-driven gas-driven liquid sensor has the small-sized and high-sensitivity detection capacity.

Description

Technical Field

[0001] The invention relates to a CO2 catalytic conversion life support verification system, belonging to the technical field of industrial machinery design. Background Art

[0002] Whether it is the current space station project or the future manned lunar and Mars landings, solving the life support problem of astronauts is the top priority. In order to maintain the normal work of astronauts, they need to provide enough water, food and oxygen, and the astronauts' metabolic volume of oxygen and water is about one kilogram. Therefore, to achieve long-term extraterrestrial survival means that a large amount of survival supplies 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 produce oxygen has always attracted much attention. In addition to extraterrestrial artificial photosynthesis technology, there are many projects related to the reduction of carbon dioxide to produce oxygen. At present, the International Space Station uses electrolysis of water to supplement oxygen for astronauts. For the in-situ resource utilization of CO2 in the space station and Mars, high-temperature thermal reduction or electrolysis technology is being developed to reduce carbon dioxide to oxygen. However, the operating conditions are harsh (high temperature and high pressure conditions) 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 accelerates and controllably converts carbon dioxide into oxygen and carbon-containing fuels through photoelectric catalysis. It can not only convert carbon dioxide produced by human breathing into oxygen through artificial photosynthesis technology, realize the recycling of waste in-situ resources in confined spaces, and greatly reduce the material supply needs of manned space stations and manned deep space spacecraft, but also use the rich carbon dioxide and water resources in the extraterrestrial atmosphere such as Mars to produce oxygen and fuel, realize human survival on other planets, and support affordable and sustainable manned deep space exploration missions.

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

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

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

[0008] A CO2 catalytic conversion life support verification system includes a gas supply pressure regulating 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 is used to input the stored CO2 gas and sodium bicarbonate electrolyte solution into the catalytic reaction module after receiving the instruction sent by the controller module, and simultaneously regulate the CO2 gas pressure and flow, and send the CO2 gas pressure data to the controller module;

[0010] The catalytic reaction module is used to react CO2 gas and sodium bicarbonate electrolyte solution after receiving the instruction sent by the controller module, realize the conversion of CO2 into oxygen and collect the reaction gas product and liquid product after the reaction, perform pressure detection of reactant and product gas, and send the pressure data to the controller module;

[0011] The online detection module is used to detect the composition and reaction efficiency of the reaction product of the catalytic reaction module after receiving the instruction sent by the controller module, and send the result data to the controller module;

[0012] The DC secondary conversion power supply is used to supply power to the gas supply pressure regulating module, the catalytic reaction module, the online detection module and the controller module, and output currents of 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 regulating module includes a gas source, a solenoid valve, a storage tank, a pressure sensor, a self-locking valve and a mass flow meter; wherein, the gas source is used to supply CO2 gas to the storage tank, and the solenoid valve is used to regulate the pressure and flow of CO2 gas output by the gas source, the pressure sensor detects the pressure of the CO2 gas and sends the data to the controller module, the storage tank stores sodium bicarbonate electrolyte solution, CO2 gas enters the storage tank, and compresses the electrolyte solution to flow into the catalytic reaction module, the self-locking valve is used to control the CO2 gas flow output by the gas source, and the mass flow meter is used to detect the CO2 gas flow entering the catalytic reaction module.

[0015] The storage box is a bladder-type structure, and a diaphragm is arranged inside to isolate liquid and gas and prevent irregular movement of gas in the liquid path.

[0016] The catalytic reaction module includes a quick disconnect, a pressure sensor, a tee, a collection bag, a reactor, an electrical connector and a self-locking valve; wherein the quick disconnect, the tee and the self-locking valve are used to realize the connection and disconnection between the catalytic reaction module and the gas supply pressure regulating module and the online detection module; the electrical connector is used to concentrate all electrical interfaces of the catalytic reaction module, the pressure sensor is used to perform pressure detection of reactants and product gases, and send the pressure data to the controller module, the CO2 gas output by the gas source and the sodium bicarbonate electrolyte solution output by the storage tank enter the reactor for catalytic reaction, and the reaction gas product and liquid product enter the collection bag respectively, so as to realize the separation and collection of the reaction products.

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

[0018] The catalytic reaction module also includes a CCD camera to monitor the micro-channels in the reactor, thereby realizing 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 gas product composition and reaction efficiency, and the spectrometer is used to detect the liquid product composition and reaction efficiency. The detection result data of the mass spectrometer and the spectrometer are sent to the controller module respectively.

[0020] It also includes a structural module, which is a shell structure for placing a gas supply pressure regulating module, a catalytic reaction module, an online detection module, a DC secondary conversion power supply and a controller module therein.

[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; wherein the upper cover plate, the left side plate, the bottom plate, the front cover plate, the right side plate and the rear cover plate are connected by screwing to form an overall external structure, and the packaging plate is fixed to the front cover plate by threaded connection, so as to fix and protect the system.

[0022] The input power of the DC secondary conversion power supply is a 100V DC power supply, and the output is current of 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, and the catalytic reaction components can be easily replaced; the present invention can realize autonomous intelligent catalytic reaction capabilities in a space environment and achieve high energy conversion efficiency.

[0025] (2) The CO2 catalytic conversion life support verification system of the present invention can realize independent and continuous regulation of gas and liquid flow rates over a wide range and with high precision in an unmanned space environment. The product gas and liquid can be separated and collected through the catalytic reaction module, and high-precision real-time online measurement and analysis of the test device and reaction products can be achieved 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 bladder-type structure, which can prevent irregular movement of gas in the liquid path and ensure high-precision control of the liquid. BRIEF DESCRIPTION OF THE DRAWINGS

[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 the internal structure diagram of the CO2 catalytic conversion life support verification system of the present invention;

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

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

[0031] Figure 5 This is the overall appearance diagram of the CO2 catalytic conversion life support verification system of the present invention. DETAILED DESCRIPTION

[0032] The present invention is further described in detail below 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 the present invention is: the gas supply pressure regulating module 1 performs pressure and flow control, and inputs CO2 gas and sodium bicarbonate electrolyte solution into the reactor 219-220 in the catalytic reaction module 2. Under the action of the light source, the conversion of CO2 to oxygen is realized, and the reaction products are collected by the product collection device after the reaction; at the same time, the reaction products pass through the spectrometer 32 and the mass spectrometer 31 to realize the detection of the reaction products. The input of the DC secondary conversion power supply 4 is a 100V DC power supply, and the output voltage is used to power the controller module 5. The controller module 5 mainly performs autonomous control of the gas supply pressure regulating module 1, the catalytic reaction module 2 and the online detection module 3, such as power supply, detection, and communication, based on the embedded working mode code, to realize the autonomous operation of the system.

[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 regulating 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 mounted and fixed to the side plate of the structural module 6. The mounting interface of the mass spectrometer 31 is also mounted and 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 to realize the detection of the fluid working medium.

[0036] The input of the DC secondary conversion power supply 4 is a 100V DC power supply, and the output is currents of different voltages such as 5V, 12V, and 24V, which can meet the voltage requirements of different components. The mounting interface is mounted and fixed to the top plate of the structural module 6.

[0037] The electrical interface of the controller module 5 includes power supply, detection, communication, etc., and its installation interface is installed on the bottom plate of the structure module 6.

[0038] like Figure 3 As shown, the gas source 11, high-frequency solenoid valve 12, storage tank 13, pressure sensor 14, self-locking valve 15 and mass flow meter 16 of the gas supply and pressure regulating module 1 are fixed on the bottom plate 63, the right side plate 65 and other structures by means of single-machine 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 through a pipeline. The precise regulation of the gas source flow is achieved through high-frequency drive. The solenoid valve 12 is connected to the storage tank 13 through a metal pipeline. The storage tank 13 is a sac-type structure and stores electrolyte solution inside. When the gas source 11 supplies gas, the gas is supplied to the storage tank 13 and the diaphragm of the storage tank 13 is used to isolate the gas-liquid supply. At the same time, the mass flow meter 16 detects the flow entering the catalytic reaction module 2.

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

[0040] The anode outlet of the reactor 219 is connected to the tee 213, one of which enters the quick disconnect 205, passes through the self-locking valve 227, and is connected to the spectrometer 32 and the mass spectrometer 31. The outlet of the mass spectrometer 31 is connected to the self-locking valve 229, enters the quick disconnect 207, and finally enters the collection bag 215. The other one is directly connected to the self-locking valve 223 and enters the collection bag 215. The cathode outlet of the reactor 219 is connected to the self-locking valve 224 and directly enters the collection bag 216.

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

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

[0043] like Figure 5 The structure diagram of the structural module of a CO2 catalytic conversion life support verification system of the present invention is shown. 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, and a packaging plate 67, and also includes related direct parts. 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 form the overall external structure of the verification system by screwing, and in the front cover plate 64, the packaging plate 67 is fixed to the front cover plate 64 by threading, and the internal gas supply pressure regulating module 1, the catalytic reaction module 2, the online detection module 3, the DC secondary conversion power supply 4, the control module 5, etc. are all connected by threads and installed on each plate of the structural module 6 to ensure the reliability and stability of the installation.

[0044] The CO2 catalytic conversion life support verification system of the present invention can realize the replacement of the catalytic reaction module 2, by opening the packaging plate 67, unplugging the quick disconnectors 201, 202, 203 and 204, and disconnecting the flow path between the gas supply and pressure regulating module 1 and the catalytic reaction module 2; unplugging the quick disconnectors 205, 206, 207 and 208, and disconnecting the online detection module 3 and the catalytic reaction module 2, and disconnecting the electrical connector 221, and disconnecting the entire flow path, and then disconnecting the screws of the catalytic reaction module 2 from the structural module 6, and replacing the entire catalytic reaction module 2 can be realized.

[0045] The above description is only the best specific implementation mode of the present invention, but the protection scope of the present invention is not limited thereto. Any changes or substitutions that can be easily thought of by any technician familiar with the technical field within the technical scope disclosed by the present invention should be covered within the protection scope of the present invention.

[0046] The contents not described in detail in the specification of the present invention belong to the common knowledge of the professionals in this field.

Claims

1. A CO2 catalytic conversion life support verification system, characterized by: It comprises 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: A gas supply pressure regulating module (1) is used for, after receiving the instruction sent by the controller module (5), inputting the stored CO2 gas and sodium bicarbonate electrolyte solution into the catalytic reaction module (2), and simultaneously regulating the CO2 gas pressure and flow, and sending the CO2 gas pressure data to the controller module (5); The catalytic reaction module (2) is used to, after receiving the instruction sent by the controller module (5), react the CO2 gas with the sodium bicarbonate electrolyte solution, realize the conversion of CO2 into oxygen and collect the reaction gas product and liquid product after the reaction, perform pressure detection of the reactant and product gas, and send the pressure data to the controller module (5); An online detection module (3) is used to detect the composition and reaction efficiency of the reaction product of the catalytic reaction module (2) after receiving the instruction sent by the controller module (5), and send the result data to the controller module (5); A DC secondary conversion 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 a command signal from a host computer, send control commands 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).

2. The CO2 catalytic conversion life support verification system according to claim 1 is characterized in that: The gas supply and pressure regulating module (1) comprises 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 pressure and flow of the CO2 gas outputted by the gas source (11) are regulated by the solenoid valve (12); the pressure sensor (14) detects the pressure of the CO2 gas and sends the data to the controller module (5); the storage tank (13) stores a sodium bicarbonate electrolyte solution; the 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 flow of the CO2 gas outputted by the gas source (11); and the mass flow meter (16) is used to detect the flow of the CO2 gas entering the catalytic reaction module (2).

3. The CO2 catalytic conversion life support verification system according to claim 2 is characterized in that: The storage box (13) is a bladder-type structure, and a diaphragm is arranged inside to separate liquid and gas and prevent irregular movement of gas in the liquid path.

4. The CO2 catalytic conversion life support verification system according to claim 1 is characterized in that: The catalytic reaction module (2) comprises a quick disconnect (201-208), a pressure sensor (209-212), a three-way connection (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 (201-208), the three-way connection (213-214) and the self-locking valve (223-230) are used to realize 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 sensors (209-212) are used to detect the pressure of reactants and product gases, and send the pressure data to the controller module (5); the CO2 gas output by the gas source (11) and the sodium bicarbonate electrolyte solution output by the storage tank (13) enter the reactor (219-220) for catalytic reaction; the reaction gas product and the liquid product enter the collection bag (215-218) respectively, so as to achieve separation and collection of the reaction products.

5. The CO2 catalytic conversion life support verification system according to claim 4 is characterized in that: The replacement method of the catalytic reaction module (2) is as follows: unplug the quick disconnects (201-204) to disconnect the flow path between the gas supply pressure regulating module (1) and the catalytic reaction module (2); unplug the quick disconnects (205-208) to disconnect the online detection module (3) and the catalytic reaction module (2), and disconnect the electrical connector (221) to disconnect the entire flow path, and then disconnect the catalytic reaction module screws from the structural module (6) to achieve replacement of the entire catalytic reaction module (2).

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

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

8. The CO2 catalytic conversion life support verification system according to claim 1 is characterized by: It also includes a structural module (6), which is a shell structure and is used to place 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) therein.

9. The CO2 catalytic conversion life support verification system according to claim 8, characterized in that: The structural module (6) comprises 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), a packaging 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 screwing to form an integral external structure, and the packaging plate (67) is fixed to the front cover plate (64) by screwing, so as to fix and protect the system.

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

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