Extraterrestrial weak magnetic field environment simulation device suitable for biological culture

By designing a device that integrates a weak magnetic environment to simulate a cylinder, a temperature control module and a condensate recovery module, the problem that the existing technology cannot simultaneously simulate a weak magnetic field and control environmental factors is solved, and the control of temperature, humidity and light is realized. and the recycling of condensate water supports the development of biological and ecological research.

CN119323915APending Publication Date: 2025-01-17BEIHANG UNIV
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Patent Information

Application Number
CN202411666642.5
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2024-11-21
Publication Date
2025-01-17

AI Technical Summary

Technical Problem

The existing magnetic shielding devices cannot effectively control temperature, humidity and light while simulating an extraterrestrial weak magnetic field environment, and are difficult to recover condensate, limiting the research and experiments of organisms in extreme environments.

Method used

A device including a weak magnetic environment simulation cylinder, a temperature control module and a condensate recovery module is designed. The multi-layer magnetic shielding cylinder and non-magnetic material are used, combined with a liquid-cooled tube and a water-absorbing water conducting ring to achieve temperature and humidity Regulate and recover condensate water to ensure the stability and accuracy of biological experiments.

Benefits of technology

It realizes fine control of temperature, humidity and light in a weak magnetic field environment, and supports the development of biological and ecological research through an efficient condensate recovery module, ensuring the reliability of experimental results and the stability of biological experiments. .

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Abstract

The invention belongs to the field of scientific experimental instruments, and particularly relates to an extraterrestrial weak magnetic field environment simulation device. The invention aims to provide an extraterrestrial weak magnetic field environment simulation device suitable for biological culture. The device mainly comprises a weak magnetic environment simulation cylinder, a temperature control module, a condensate water recovery module and a load-bearing biological culture table. According to the invention, simulation of the extraterrestrial weak magnetic field environment and environment control are integrated, simulation of the extraterrestrial weak magnetic field environment is realized, environment temperature, humidity and illumination can be controlled, condensate water can be recycled and utilized in a personalized manner, biological and ecological experiment requirements are considered in material selection and design, and the system has a wide application prospect. The load bearing and high stability, including structural stability and chemical stability, of the extraterrestrial weak magnetic field environment simulation device are achieved, and the device is suitable for biological and ecological research related to plant, animal and microorganism culture in the weak magnetic field environment.
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Description

Technical Field

[0001] The present invention belongs to the field of scientific experimental instruments, and in particular relates to an extraterrestrial weak magnetic field environment simulation device suitable for biological cultivation, which aims to provide a weak magnetic field environment, and can control temperature, humidity and light, and can recycle and utilize condensed water, so as to provide a stable and suitable environment for biological cultivation and scientific research in the fields of space life ecology science and magnetobiology. Background Art

[0002] With the development of human spaceflight, such as China's Chang'e series, Tianwen series missions and the International Lunar Research Station large scientific facility, the United States' Artemis Program and the Mars exploration series missions, new requirements and opportunities for rapid development have been put forward for the technical and theoretical development in the field of space life science and space ecology. These include theories and technologies related to biological regeneration life support systems that can provide the most advanced life support for human extraterrestrial survival. Among the typical extreme environmental factors outside the earth, the magnetic field environment, as one of the constant environmental factors in the process of biological life activities, plays an important role in the life activities of organisms. The magnetic field environment on the moon and Mars is significantly different from that on the ground. There is no global dipole. Most of the moon has a zero magnetic field, and a very small number of areas have a magnetic field of 100nT-300nT due to the presence of magnetic minerals on its surface. On Mars, based on the magnetic field observation data of the Mars Global Surveyor (MGS) satellite at an altitude of about 400 kilometers, the surface of Mars is distributed with local magnetic fields formed by magnetic rock minerals, and the intensity usually reaches thousands of nT. In contrast, the Earth has a global magnetic field, namely the geomagnetic field, which can be regarded as a dipole magnetic field along the Earth's core axis, with a magnetic induction intensity between 25μT and 65μT, and an average size of about 50μT. Its range covers the entire Earth and near-Earth space. The current geomagnetic South Pole is close to the geographic North Pole, and the geomagnetic North Pole is close to the geographic South Pole. It can be seen that although there may still be large uncertainties in the results of the magnetic field measurements for the Moon and Mars, it can be basically clearly determined that the magnetic fields of the Moon and Mars are significantly different from the Earth's magnetic field environment.

[0003] Then, in the process of exploring the moon and Mars, human beings will inevitably need a biological regeneration life support system composed of plants, animals, and microorganisms to survive outside the earth. Plants, animals, and microorganisms have adapted to the magnetic field environment on the earth in the long-term evolution process. When the magnetic field environment changes, their life activities are bound to change significantly, which will lead to system construction and operation control parameters that are significantly different from those on the ground. Therefore, if we want to establish and stably operate a biological regeneration life support system in an extraterrestrial environment, we must study the response and adaptation laws of plants, animals, and microorganisms to the weak magnetic field environment outside the earth and their deep mechanisms, and carry out cultivation research on plants, animals, and microorganisms in weak magnetic environments on the moon or Mars. On the one hand, it is limited by resource constraints to carry out long-life cycle, large-scale, and more test index research on the surface of the moon or Mars. On the other hand, it is difficult to return samples and conduct deep research on molecules or genes. Therefore, it is necessary to develop an experimental device that can shield the ground magnetic field, simulate the magnetic field environment on the moon or Mars, and control environmental factors that must be regulated for biological life activity, such as temperature, humidity, and light.

[0004] The magnetic shielding devices developed in the past are all for detection equipment, electromechanical equipment, etc., and magnetic shielding is used to ensure or improve the operating performance of the equipment. There is no weak magnetic environment simulation equipment that can regulate environmental factors such as temperature, humidity, and light to cultivate plants, animals, microorganisms, etc. The technical difficulty is to achieve the regulation of the temperature, humidity, and light environment in the culture room while ensuring the weak magnetic field environment, and to recover condensed water at the same time. Therefore, the present invention has developed an extraterrestrial weak magnetic field environment simulation device suitable for biological culture. While shielding the ground magnetic field to simulate the weak magnetic field of extraterrestrial space, it can achieve the regulation of the temperature, humidity, and light environment in the weak magnetic field effective space, as well as the recovery of condensed water, etc., which can better support the biological and ecological research on the extraterrestrial weak magnetic environment. Summary of the invention

[0005] The purpose of the present invention is to provide a device for simulating an extraterrestrial weak magnetic field environment suitable for biological cultivation. The device can be used in laboratories to carry out life science and ecological research in extraterrestrial magnetic field environments such as the moon and Mars.

[0006] In order to realize the simulation of the above weak magnetic environment, environmental control and recovery of condensed water, this extraterrestrial weak magnetic field environment simulation device suitable for biological cultivation was designed and invented.

[0007] The technical solution adopted by the present invention to solve the above technical problems is:

[0008] An extraterrestrial weak magnetic field environment simulation device suitable for biological cultivation is designed to provide a weak magnetic environment for biological cultivation experiments, and has a certain degree of scalability. It can install fixed temperature and humidity, gas composition sensors and cameras and other small components inside the device to detect the temperature, humidity and gas composition environmental conditions inside the effective space of the device; it can connect external devices to the outside of the device to achieve temperature control inside the device. It mainly includes four parts:

[0009] 1. Weak magnetic environment simulation cylinder

[0010] The weak magnetic environment simulation cylinder of the device consists of a multi-layer magnetic shielding cylinder, an inner cylinder, a cylinder cover, a through-wall hole, and a base. The cylinder adopts a cylindrical structure. In order to ensure the stability of the cylinder structure and the applicability of biological experiments, a vertical cylinder design is adopted. This can better ensure that the device will not be deformed due to force during long-term use, and is more conducive to the development of larger biological experiments such as plants and animals. In order to meet the needs of different biological cultivation, such as plant cultivation often requires a larger effective space height, in view of the needs of plant cultivation experiments, the effective space height of the weak magnetic environment simulation cylinder is not less than the minimum height required for plant cultivation.

[0011] Since some inorganic salt chemical solutions are inevitably used in the biological culture process, the life activities of the organisms themselves will release some organic volatiles, and the environment is often humid, the structure of the weak magnetic environment simulation cylinder must be designed specifically for biological or chemical corrosion. The weak magnetic environment simulation cylinder in the invention uses a non-magnetic and chemically stable material as the inner tube inside the multi-layer magnetic shielding tube, and the connection between the bottom of the inner tube and the tube wall is chamfered. The inner tube wall is stable and smooth without dead corners, which avoids the release of gaseous or solid substances from the inner tube material under chemical or biological corrosion during life science or ecological experiments, which interferes with the experiment and is easy to clean.

[0012] When the weak magnetic environment simulation cylinder is expanded to connect environmental detection sensors, cameras or light source equipment, it is necessary to avoid interference with the magnetic field environment inside the cylinder as much as possible. Therefore, the powered wires or control equipment modules need to be placed outside the cylinder as much as possible. Therefore, through-wall holes must be designed according to needs. The through-wall holes are distributed in the upper, middle and lower positions of the cylinder, namely the upper edge of the cylinder, the middle of the cylinder, and the lower part of the cylinder. The through-wall holes at the upper edge of the cylinder are convenient for installing light sources and other components placed on the top of the experimental space through the wall; the through-wall holes in the middle of the cylinder are convenient for installing environmental detection sensors and image camera modules and other components that need to be installed in the middle of the equipment through the wall; the through-wall holes in the lower part of the cylinder are set at the lower edge of the effective space, which is convenient for the continuous input of related substances (such as water, nutrient solution, etc.) required for biological culture, or for the installation of components such as sensors required at the bottom; all the through-wall holes here are closed by passing pipes through the interlayer spaces of the device, so that the interlayer spaces cannot be connected with the space inside the barrel or the space outside the barrel, so as to prevent water vapor, dust and other substances from entering the interlayer. The inner diameter of each hole should be based on the requirements of the weak magnetic field simulation level of the magnetic shielding cylinder and the needs of the required through-wall lines, and a comprehensive design analysis should be conducted to select the minimum aperture value.

[0013] Preferably, the effective space diameter of the weak magnetic environment simulation cylinder of the device is 100mm-180mm, and the height is 250mm or more, so as to meet the cultivation of plants, animals, and microorganisms with different space requirements, or the experimental requirements of two-chain ring and three-chain ring micro-ecosystems;

[0014] Preferably, two through-wall holes with a diameter of 10mm-20mm are arranged opposite to each other at the upper, middle and lower parts of the weak magnetic environment simulation cylinder. While ensuring the magnetic shielding effect, it can meet the installation and fixation requirements of sensors, light sources, cameras and other components at different positions and types, and ensure that a minimum of energized wires enter the cylinder to interfere with the magnetic field environment.

[0015] Preferably, all the through-wall holes are sealed by passing pipes through the interlayer spaces of the device, so that the interlayer spaces cannot communicate with the space inside the barrel or the space outside the barrel, thereby preventing water vapor, dust and other substances from entering the interlayer.

[0016] Preferably, the inner wall of the weak magnetic environment simulation cylinder is provided with an inner liner tube which is corrosion-resistant, resistant to high and low temperatures, and has stable performance, and the corners of the inner liner tube or the junctions of the walls are chamfered to meet the requirements of the high humidity environment of the biological experimental environment for material stability, and will not be corroded by high temperature and humidity or acidic and alkaline solutions produced by the biological culture process, thereby releasing gaseous or free substances that interfere with the life activities of the organism and the test results.

[0017] 2. Temperature control module

[0018] Temperature is an important environmental factor in experiments related to life science and ecology. If the ambient temperature cannot be well controlled, it will directly lead to significant changes in the life activities of organisms in scientific research, thereby interfering with the reliability of research results. In order to achieve temperature control in the effective space of the tube on the basis of achieving a better weak magnetic field environment simulation, the device designed a temperature control module. The technical solution of this module is as follows: on the outer wall of the innermost tube of the multi-layer magnetic shielding tube, the liquid cooling tube is densely distributed, and the liquid cooling tube is installed closely with the innermost magnetic shielding tube. The outer diameter of the liquid cooling tube is equal to the interlayer pore size of the multi-layer magnetic shielding tube to ensure that the liquid cooling tube is in close contact with the outer wall of the innermost magnetic shielding tube, and the arrangement density of the liquid cooling tube is designed to achieve efficient temperature control; the material of the liquid cooling tube is non-magnetic material with good thermal conductivity, and the pores between the tubes can be filled with thermal conductive glue, etc., to improve the stability of the liquid cooling tube while improving the thermal conductivity effect.

[0019] Preferably, the device is implemented by densely arranging liquid cooling tubes on the outer wall of the innermost layer of the multi-layer magnetic shielding tube. The liquid cooling tubes are installed tightly against the innermost magnetic shielding tube. The outer diameter of the liquid cooling tubes is equal to the interlayer pore size of the magnetic shielding tube to ensure that the liquid cooling tubes are in close contact with the outer wall of the magnetic shielding inner layer tube to facilitate heat transfer. For example, the interlayer pore size is 10 mm and the outer diameter of the liquid cooling tube is 10 mm.

[0020] Preferably, the liquid cooling tube is made of non-magnetic material with good thermal conductivity.

[0021] Preferably, the arrangement density of the liquid cooling tubes is aimed at achieving optimal control of the simulated temperature. Heat calculation is performed comprehensively by combining parameters such as operating heat generation and heat conductivity of the liquid cooling module, and the arrangement density range of the liquid cooling tubes is calculated based on the calculation results.

[0022] 3. Condensate recovery module

[0023] Condensate recovery is one of the key points in biological culture experiments and ecosystem experiments, and there is a coupling relationship between condensate recovery and temperature control. In order to recover the condensate generated in the experiment process in the cylinder, a water-absorbing water-guiding ring is fixed on the inner wall of the inner liner tube facing upward from the bottom of the effective space, close to the inner wall of the inner liner tube. The lower edge of the water-absorbing water-guiding ring can extend to the bottom of the inner liner tube of the magnetic shielding tube, and the upper edge does not exceed the 1 / 2 height line of the effective space. The lower part of the water-absorbing water-guiding ring can be extended into the experimental module or not according to the experimental design requirements. The former can realize the direct recovery and utilization of condensate, and the latter can only realize direct recovery. Such a design can achieve more efficient and personalized condensate recovery and utilization; the water-absorbing water-guiding ring is made of fiber materials that are resistant to acid and alkali corrosion, high and low temperature resistance, high water absorption, and high water conductivity, and can be disassembled and replaced for easy cleaning and disinfection during use. A condensate pipe is arranged at the bottom of the magnetic shielding tube to facilitate the discharge of condensate. The condensate pipe seals the interlayer gaps of the device by passing through the tube, so that the interlayer space cannot be connected with the inside or outside of the tube, avoiding water vapor, dust, impurities and other substances from entering and being retained in the interlayer. The inner diameter of the condensate pipe should be based on the magnetic shielding level requirements of the magnetic shielding tube and the need for through-wall condensate discharge. Comprehensive analysis should be conducted to select the minimum pipe diameter value.

[0024] Preferably, the condensed water recovery module is fixed with a layer of water absorption and water guiding ring on the inner tube wall facing upward from the bottom of the effective space, close to the inner wall surface of the inner liner tube. The lower edge of the water absorption and water guiding ring can extend to the bottom of the inner liner tube of the weak magnetic field environment simulation tube, and the upper edge does not exceed the 1 / 2 height line of the effective space.

[0025] Preferably, the water-absorbing and water-conducting ring is made of a fiber material that is resistant to acid and alkali corrosion, high and low temperature resistance, high water absorption, and high water conductivity, and is removable and replaceable to facilitate cleaning and disinfection during use.

[0026] Preferably, the water absorption and water guiding ring has high flexibility, and its lower part can be extended into the experimental module or not according to the experimental design requirements. The former can realize the direct recovery and utilization of condensed water, and the latter can only realize direct recovery. Such a design can achieve more efficient and personalized condensed water recovery and utilization.

[0027] Preferably, the condensate water pipe seals the interlayer gaps of the device by penetrating the wall, so that the interlayer space cannot be connected with the inside or outside of the tube, preventing water vapor, dust, impurities and other substances from entering and being retained in the interlayer. The inner diameter of the condensate water pipe should be based on the magnetic field level requirements of the weak magnetic field environment simulation tube and the need for the required through-wall condensate discharge. After comprehensive evaluation and analysis, the minimum aperture value should be selected. The edge of the inner port of the condensate water pipe should smoothly connect with the ground of the inner tank tube to facilitate the smooth discharge of condensate and the impurities contained therein. The outer port of the condensate water pipe is connected to a water pipe and a water stop valve to facilitate the discharge and control of condensate.

[0028] 4. Load-bearing biological culture platform

[0029] In view of the strength and stress-deformation characteristics of magnetic shielding alloy materials, in order to meet certain load-bearing requirements and not cause gravity pressure on the bottom of the magnetic shielding tube, causing it to deform and ultimately affect the performance of the imaging device, a load-bearing biological culture platform is set at the bottom of the tube. The load-bearing biological culture platform consists of a load-bearing platform bracket and a load-bearing platform plate, both of which are made of non-magnetic materials. The load-bearing platform plate can be disassembled and the manufacturing material is corrosion-resistant, which is convenient for cleaning the inside of the device; the load-bearing platform bracket passes through the wall to transfer the weight to the base of the device, and the multi-layer magnetic shielding tube is not subjected to force.

[0030] Compared with the prior art, the advantages of the present invention are:

[0031] 1) The device of the present invention integrates simulation of extraterrestrial weak magnetic field environment and environmental control, which not only realizes the simulation of extraterrestrial weak magnetic field environment, but also realizes the control of environmental temperature, humidity and light. It is suitable for biological and ecological research involving the cultivation of plants, animals and microorganisms in weak magnetic field environment.

[0032] 2) The present invention not only has the function of regulating temperature, humidity and light, but also can realize the personalized recovery and utilization of condensed water.

[0033] 3) The material selection and design of the device of the present invention fully consider the needs of biological and ecological experiments, and realize the load-bearing and high stability of the extraterrestrial weak magnetic field environment simulation device, including structural stability and chemical stability. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] Figure 1 : 3D longitudinal cross-sectional view of the experimental device;

[0035] in:

[0036] 1- Weak magnetic environment simulation cylinder 2- Multi-layer magnetic shielding cylinder 3- Inner cylinder 4- Cylinder cover

[0037] 5- wall hole 6- base 7- liquid cooling pipe 8- water absorption and water guide ring

[0038] 9-Load-bearing platform 10-Load-bearing platform bracket 11-Thermal conductive glue 12-Condensate pipe

[0039] 13-Multi-layer magnetic shielding tube cover 14-Liquid cooling pipe liquid inlet 15-Liquid cooling pipe liquid outlet DETAILED DESCRIPTION

[0040] The present invention will be further described in detail below with reference to the accompanying drawings.

[0041] according to Figure 1As shown, a magnetic shielding device suitable for biological culture proposed by the present invention is composed of a weak magnetic environment simulation cylinder 1, a temperature control module, a condensate recovery module and a load-bearing biological culture platform, wherein the weak magnetic environment simulation cylinder 1 is composed of a multi-layer magnetic shielding cylinder 2, an inner liner cylinder 3, and a through-wall hole 5. The multi-layer magnetic shielding cylinder 2 and the cylinder cover 4 realize the simulation of the weak magnetic field environment outside the earth on the ground through the magnetic shielding characteristics of the material; the inner liner cylinder 3 is made of a non-magnetic, corrosion-resistant, high and low temperature resistant, and stable physical and chemical properties material, and each corner or wall junction of the inner liner cylinder 3 is chamfered to meet the requirements of the high humidity environment of the biological experimental environment for material stability, and will not be corroded due to high temperature and humidity or acidic and alkaline solutions generated during the biological culture process. Phenomenon, to ensure that during the application of the device, no gaseous or free substances that interfere with the life activities of organisms and the test results will be released; the through-wall holes 5 are distributed in the upper, middle and lower parts of the weak magnetic field environment simulation cylinder, and a pair of through-wall holes are arranged relatively at each part. While ensuring the magnetic shielding effect, it can meet the installation and fixation requirements of sensors, light sources, cameras and other components at different positions and types, and ensure that the minimum number of energized wires enters the cylinder to interfere with the magnetic field environment. All through-wall holes are sealed in the form of pipes to seal the interlayer spaces of the device, so that the interlayer gaps cannot be connected to the inside or outside of the cylinder, and water vapor, dust and other substances are prevented from entering the interlayer gaps; the temperature control module is composed of a liquid cooling tube 7, a thermal conductive glue 11, and a liquid cooling tube inlet 14 and a liquid cooling pipe outlet 15. When the device is running, low-temperature cold liquid enters from the cold liquid pipe inlet 14 through an external connection, and the cold liquid flows through all the cold liquid pipes 7 and is discharged from the cold liquid pipe outlet 15, so as to circulate the device. By adjusting the temperature and flow rate of the circulating cold liquid, the temperature inside the tank 3 of the device is controlled under the joint action of the thermal conductive glue 11. The condensed water recovery module is composed of a water absorption and water guiding ring 8 and a condensed water pipe 12. The water absorption and water guiding ring 8 adopts a fiber material that is resistant to acid and alkali corrosion, resistant to high and low temperatures, highly absorbent, and highly conductive, and is detachable and replaceable for cleaning and disinfection during use. At the same time, the water absorption and water guiding ring has high flexibility, and its lower part can be extended into the experimental module or not according to the requirements of the experimental design. , the former can realize direct recovery and utilization of condensed water, while the latter can only realize direct recovery. Such design can realize more efficient and personalized condensed water recovery and utilization; the condensed water pipe 12 seals the interlayer gaps of the device by penetrating the wall, so that the interlayer space cannot be connected with the inside or outside of the tube, and prevents water vapor, dust, impurities and other substances from entering and being retained in the interlayer. The inner diameter of the condensed water pipe should be based on the magnetic field level requirements of the weak magnetic field environment simulation tube and the need for the required through-wall condensed water discharge. After comprehensive analysis, the minimum aperture value is selected, and the edge of the inner port of the condensed water pipe is smoothly connected with the ground of the inner tank tube, which is convenient for the smooth discharge of condensed water and impurities contained therein. The outer port of the condensed water pipe is connected to a water pipe and a water stop valve to facilitate the discharge and control of condensed water;The load-bearing biological culture platform is composed of a load-bearing platform plate 9 and a load-bearing platform bracket 10, both of which are made of non-magnetic and corrosion-resistant materials. The load-bearing platform bracket 10 penetrates the wall and transmits the weight on the load-bearing platform plate 9 to the base 6 to bear, so as to avoid the bottom of the weak magnetic field environment simulation cylinder 1 being stressed, thereby causing the cylinder structure to deform during use, affecting the weak magnetic field environment simulation effect of the entire device. The load-bearing platform plate 9 is detachable, which is convenient for cleaning inside the device. ;

[0042] The protection scope of the present invention is not limited thereto. Any equivalent substitution or change made by a person skilled in the art based on the present invention is within the protection scope of the present invention. The protection scope of the present invention is subject to the claims.

Claims

1. A device for simulating an extraterrestrial weak magnetic field environment suitable for biological cultivation, characterized in that: It mainly includes four parts: a weak magnetic environment simulation cylinder, a temperature control module, a condensate recovery module, and a load-bearing biological culture platform; the weak magnetic environment simulation cylinder is characterized in that it is composed of a multi-layer magnetic shielding cylinder 2, an inner liner cylinder 3, and a through-wall hole 5; the multi-layer magnetic shielding cylinder 2 and the cylinder cover 4 realize the simulation of the weak magnetic field environment outside the earth on the ground through the magnetic shielding characteristics of the material; the inner liner cylinder 3 is made of a material that is non-magnetic, corrosion-resistant, high and low temperature resistant, and has stable physical and chemical properties, and the corners or wall intersections of the inner liner cylinder 3 are chamfered to meet the requirements of the high humidity environment of the biological experimental environment for material stability, and will not be affected by High temperature and high humidity or acidic and alkaline solutions produced during the biological culture process will cause corrosion, ensuring that no gaseous or free substances that interfere with the life activities of the organism and the test results will be released during the use of the device; the through-wall holes 5 are distributed as required by the external components of the device, while ensuring the magnetic shielding effect, in order to meet the installation and fixation requirements of sensors, light sources, cameras and other components at different positions and of different types, and to ensure the minimum interference with the magnetic field environment. All through-wall holes are closed by passing pipes through the interlayer spaces of the device, so that the interlayer pores cannot be connected to the inside or outside of the tube, and water vapor, dust and other substances are prevented from entering the interlayer.

2. A device for simulating an extraterrestrial weak magnetic field environment suitable for biological cultivation as claimed in claim 1, characterized in that The temperature control module is composed of a liquid cooling tube 7, a thermally conductive adhesive 11, a liquid cooling tube liquid inlet 14 and a liquid cooling tube liquid outlet 15. When the device is running, low-temperature cold liquid enters from the cold liquid tube liquid inlet 14, flows through all the cold liquid tubes 7, and is discharged from the cold liquid tube liquid outlet 15, thereby circulating the device. By adjusting the temperature and flow rate of the circulating cold liquid, the temperature inside the tank 3 of the device is controlled under the joint action of the thermally conductive adhesive 11.

3. A device for simulating an extraterrestrial weak magnetic field environment suitable for biological cultivation as claimed in claim 1, characterized in that The condensate recovery module is composed of a water absorption and water guide ring 8 and a condensate pipe 12. The water absorption and water guide ring 8 is made of a fiber material that is resistant to acid and alkali corrosion, high and low temperature resistance, high water absorption, and high water conductivity, and can be disassembled and replaced to facilitate cleaning and disinfection during use. At the same time, the water absorption and water guide ring has high flexibility, and its lower part can be extended into the experimental module or not according to the experimental design requirements to achieve more efficient and personalized condensate recovery and utilization; the condensate pipe 12 seals the interlayer gaps of the device by penetrating the wall , so that the interlayer space cannot be connected with the inside or outside of the tube, to prevent water vapor, dust, impurities and other substances from entering and being retained in the interlayer. The inner diameter of the condensate pipe 12 should be based on the magnetic field level requirements of the weak magnetic field environment simulation tube and the need for the required through-wall condensate discharge. Comprehensive analysis is performed to select the minimum aperture value. The edge of the inner port of the condensate pipe 12 is smoothly connected with the bottom surface of the inner tank tube 3, which is convenient for the smooth discharge of condensate and the impurities contained therein. The outer port of the condensate pipe 12 is connected to a water pipe and a water stop valve to facilitate the discharge and control of condensate.

4. The device for simulating an extraterrestrial weak magnetic field environment suitable for biological cultivation as claimed in claim 1, characterized in that The load-bearing biological culture table is composed of a load-bearing platform 9 and a load-bearing platform bracket 10, both of which are made of non-magnetic and corrosion-resistant materials. The load-bearing platform bracket 10 passes through the wall to transfer the weight on the load-bearing platform 9 to the base 6 to bear it, so as to avoid the bottom of the weak magnetic field environment simulation cylinder 1 being subjected to force, thereby causing the cylinder structure to deform during use and affecting the weak magnetic field environment simulation effect of the entire device. The load-bearing platform 9 is detachable, which is convenient for cleaning inside the device.