A device for degradation analysis of a biodegradable material

Abstract

The application relates to the field of environmental protection, and discloses a degradation analysis device for biodegradable materials, which comprises a test module and a detection module; the test module is provided with a test box, a temperature control assembly, a sprayer and a temperature and humidity pressure sensor; the test box is provided with a containing space and an air inlet communicated with the containing space; the detection module is provided with a filter grid, a condensing device, a C 14 detector and a greenhouse gas detector. The test box can accurately simulate various different environments, the experimental efficiency can be improved through the environmental factors, the best test effect is achieved, the problem of a long natural degradation period of biological materials is solved, the defects of the prior art, i.e. only considering single-factor degradation test and single greenhouse gas release, are solved, the environmental influence of biological carbon and fossil carbon is distinguished, and the test result is more accurate.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of environmental protection, and particularly relates to a degradation analysis device for biodegradable materials. BACKGROUND

[0002] The initial intention of the research and development of biomass and bio-based new functional materials is to reduce plastic environmental pollution. However, there is a great controversy about the greenhouse gas effect of biodegradable materials. Biodegradable materials can be degraded naturally and eventually converted into water, carbon dioxide, methane and other substances. However, natural degradation is often uncontrollable and time-consuming, and cannot effectively analyze the greenhouse gas emissions during the degradation process. In addition, the open environment will cause greenhouse gas pollution to the environment; carbon dioxide, methane and other substances are the main types of greenhouse gases and have a great impact on the greenhouse effect; and for bio-based materials, the carbon elements include fossil carbon and biological carbon; secondly, most of the existing artificial degradation devices are constant-temperature aerobic environment analysis, and the entire degradation cycle still needs more than a month. There is a lack of quantitative analysis of greenhouse gas emissions during the degradation process of biological materials. The existing devices mainly focus on the single greenhouse gas carbon dioxide emission and the degradation rate, and less monitor the emission of multiple greenhouse gases such as carbon dioxide and methane. There is no device for preparing, controlling and processing multiple greenhouse gases, and most devices directly take the total carbon dioxide emission as the greenhouse gas emission value, without quantitatively distinguishing biological carbon and fossil carbon, and ignoring the influence of biological carbon. Therefore, it is necessary to accelerate the degradation of biological materials and improve the high-throughput nature and accuracy of online analysis of greenhouse gases during the degradation process.

[0003] Patent CN115028492A discloses an aerobic compost methane emission reduction test device and its use method, which comprises: a compost reaction chamber and a gas sampling chamber; the methane gas production data of different time periods can be obtained, which is convenient for studying the methane emission change characteristics in the composting process. Patent CN114315445A discloses a device and method for realizing composting condition control and monitoring carbon dioxide release amount, which comprises the following modules: oxygen supply module, composting module, gas pretreatment module and gas testing module; it is beneficial to accurately convert carbon dioxide mass results and realize automatic management of composting condition control. The above patents mainly measure aerobic compost methane or carbon dioxide gas and control the composting process, focusing on the change of the composting process, and the comprehensive environmental impact of the composting process and results is not considered, multiple greenhouse gases cannot be monitored at the same time, there is no accelerated degradation module, and the greenhouse gas emission carbon dioxide equivalent value of the degradation process cannot be quickly obtained; and the above patents only consider single factor aerobic degradation experiment conditions, and do not consider multiple factors or complex factor superposition: such as anaerobic, aerobic, temperature, humidity, water body, soil multiple factors and factor superposition degradation experiment conditions; secondly, although the detection of carbon dioxide improves the sensitivity, but it does not distinguish the influence of biological carbon and fossil carbon. Therefore, it is necessary to design an accelerated degradation and greenhouse gas high-throughput online analysis and purification device system. SUMMARY

[0004] The purpose of the present application is to provide a biodegradable material degradation analysis device that can accurately measure the greenhouse gases produced during the degradation of biological materials and can accelerate the degradation rate of biological materials.

[0005] The purpose of the present application is achieved by the following technical solutions:

[0006] A biodegradable material degradation analysis device, comprising:

[0007] The test module has a test box, a temperature control assembly, a sprayer and a temperature and humidity pressure sensor, the inside of the test box is provided with a containing space for accommodating biological materials, the temperature control assembly, the sprayer and the temperature and humidity pressure sensor are all arranged in the containing space, the temperature control assembly is used to control the temperature of the containing space, the sprayer is used to control the humidity of the containing space, and the temperature and humidity pressure sensor is used to sense and feedback the temperature and humidity of the containing space, and the test box is provided with an air inlet communicated with the containing space for introducing test gas into the containing space;

[0008] The detection module has a filter grid, a condensation device, a C 14The detector and the greenhouse gas detector are in communication, and the C 14 The detector and the greenhouse gas detector are in communication, and the C 14 The detector is used for measuring biological carbon, and the greenhouse gas detector is used for qualitative and quantitative analysis of greenhouse gases.

[0009] In some embodiments of the present application, the air inlet module further comprises a carbon dioxide absorption device, a second air path, and a second flow meter, the second air path is in communication with the carbon dioxide absorption device and the air inlet, the first air path is in communication with the carbon dioxide absorption device, and the second flow meter is arranged on the second air path.

[0010] In some embodiments of the present application, the first air path is in communication with the lower part of the carbon dioxide absorption device, and the second air path is in communication with the upper part of the carbon dioxide absorption device.

[0011] In some embodiments of the present application, the first air path is in communication with the lower part of the carbon dioxide absorption device, and the second air path is in communication with the upper part of the carbon dioxide absorption device.

[0012] In some embodiments of the present application, the signal control and data processing module further comprises a processor and a photovoltaic power supply component, the processor is in communication connection with the test module, the detection module, and the air inlet module, and the photovoltaic power supply component is in electrical connection with the test module, the detection module, and the air inlet module.

[0013] In some embodiments of the present application, the test module further comprises a screw rod, and the screw rod is rotatably installed inside the test box.

[0014] In some embodiments of the present application, the test module further comprises a filter screen partition plate, the filter screen partition plate is arranged in the accommodation space and divides the accommodation space into a first space and a second space, a filter hole for fluid flow is arranged on the filter screen partition plate, the first space is used for accommodating biological materials, the temperature control component, the sprayer, and the temperature and humidity pressure sensor are arranged in the first space, and the second space is used for accommodating filtered particles, and the air inlet is in communication with the second space.

[0015] In some embodiments of the present application, the test module further comprises an absorption treatment device, the absorption treatment device is in communication with the second space and is used for recycling liquid in the accommodation space.

[0016] In some embodiments of the present application, the detection module further comprises an air extraction device, the air extraction device is arranged in the C14 a third gas path, which is communicated between the air extraction device and the absorption treatment device, for guiding the greenhouse gas into the absorption treatment device.

[0017] In some embodiments of the present application, the detection module further comprises a liquid circulation device, and the condensing device and the sprayer are communicated through the liquid circulation device.

[0018] In some embodiments of the present application, the detection module further comprises a temperature compensator, which is used to adjust the temperature of the greenhouse gas discharged by the condensing device.

[0019] In some embodiments of the present application, the detection module further comprises a flow controller, which is used to control the release rate and release amount of the greenhouse gas.

[0020] The biodegradable material degradation analysis device of the present application controls the temperature of the accommodation space through the temperature control assembly in the test box, controls the humidity of the accommodation space through the sprayer, so that the test box can simulate various different environments, and at the same time, high temperature, high humidity, high pressure and other environments can be used for accelerated testing to improve the testing efficiency. The temperature and humidity of the real-time state can be sensed and fed back through the sensor, so that the test box can reach the best test environment. The filter grid in the detection module can filter the greenhouse gas produced by the test module, and remove the liquid through the condensing device, so as to achieve C 14 The detection requirements of the detector and the greenhouse gas detector, C 14 The detector is used to measure the biological carbon, and the greenhouse gas detector is used for qualitative and quantitative analysis of the greenhouse gas. By using this high-throughput detection method, the release of the greenhouse gas and the release of the fossil carbon and the biological carbon of the test module can be quickly and accurately detected online, so that the degradation test data is more accurate. BRIEF DESCRIPTION OF DRAWINGS

[0021] Figure 1 is a structural schematic diagram of the biodegradable material degradation analysis device of the present application.

[0022] In the figure, 1, test module; 11, test box; 12, temperature control assembly; 13, sprayer; 14, temperature and humidity pressure sensor; 15, accommodation space; 151, first space; 152, second space; 16, air inlet; 17, screw; 18, filter screen partition; 19, absorption treatment device; 2, detection module; 21, filter grid; 22, condensing device; 23, C 14Detector; 24, Greenhouse gas detector; 25, Air extraction device; 26, Third gas path; 27, Liquid circulating device; 28, Temperature compensator; 29, Flow controller; 3, Air inlet module; 31, First gas path; 32, Air inlet valve; 33, Air inlet pump; 34, First flow meter; 35, Carbon dioxide absorption device; 36, Second gas path; 37, Second flow meter; 4, Signal control and data processing module; 41, Processor; 42, Photovoltaic power supply assembly. DETAILED DESCRIPTION

[0023] The specific embodiments of the present application will be further described in conjunction with the drawings and examples. The following examples are used to illustrate the present application, but are not used to limit the scope of the present application.

[0024] In the description of the present application, it should be understood that the terms "upper", "lower", "top", "bottom", "inner", "outer" and the like used in the present application indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the purpose of facilitating the description of the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application. In addition, the terms "first", "second" and the like are only for the purpose of description and cannot be understood as indicating or implying relative importance.

[0025] In the present application, unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connection", "fixing" and the like should be understood broadly, for example, it can be fixed connection, or detachable connection, or integral; it can be mechanical connection, or electrical connection; it can be directly connected, or indirectly connected through intermediate medium, it can be the internal communication of two elements or the interaction relationship between two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0026] As Figure 1As shown, the embodiment of the present application proposes a biodegradable material degradation analysis device, comprising: a test module 1 and a detection module 2, the test module 1 has a test box 11, a temperature control assembly 12, a sprayer 13 and a temperature and humidity pressure sensor 14, the inside of the test box 11 is provided with a containing space 15 for accommodating biological materials, the temperature control assembly 12, the sprayer 13 and the temperature and humidity pressure sensor 14 are all arranged in the containing space 15, the temperature control assembly 12 is used for controlling the temperature of the containing space 15, the sprayer 13 is used for controlling the humidity of the containing space 15, the temperature and humidity pressure sensor 14 is used for sensing and feeding back the temperature and humidity of the containing space 15, and the test box 11 is provided with an air inlet 16 communicating with the containing space 15, for introducing test gas into the containing space 15; the detection module 2 has a filter grid 21, a condensing device 22, a C 14 detector 23 and a greenhouse gas detector 24, the containing space 15 communicates with the C 14 detector 23 and the greenhouse gas detector 24 through the filter grid 21 and the condensing device 22, the C 14 detector 23 is used for measuring biological carbon, and the greenhouse gas detector 24 is used for qualitative and quantitative analysis of greenhouse gases.

[0027] Based on the above technical scheme, the biodegradable material degradation analysis device of the present application can control the temperature of the containing space 15 through the temperature control assembly 12 in the test box 11, control the humidity of the containing space 15 through the sprayer 13, so that the test box 11 can simulate various different environments, at the same time, high temperature, high humidity and high pressure environments can be used for accelerating the test, improving the test efficiency, and the real-time temperature and humidity can be sensed and fed back through the sensor, so that the test box 11 can reach the best test environment, and the filter grid 21 in the detection module 2 can filter the greenhouse gas produced by the test module 1, and remove the liquid through the condensing device 22, so as to meet the detection requirements of the C 14 detector 23 and the greenhouse gas detector 24, the C 14 detector 23 is used for measuring biological carbon, and the greenhouse gas detector 24 is used for qualitative and quantitative analysis of greenhouse gases. By using this high-throughput detection method, the release of greenhouse gases, fossil carbon and biological carbon in the test module 1 can be quickly and accurately detected, qualitatively and quantitatively analyzed, so that the degradation test data is more accurate. It should be noted that the C 14 in the chemical substance is derived from the carbon dioxide in the atmosphere in recent years, and due to radioactive decay, it is almost not found in fossil products 20,000 to 30,000 years ago. Therefore, the C 14 content can be considered as a tracer of chemical substances synthesized from atmospheric CO2 in recent years, especially biological products produced in recent years. The determination of biomass content is based on the C 14This measurement allows for the calculation of bio-based carbon fraction. Therefore, carbon derived from biomass can be measured using C2. 14 The value is determined by the ratio of carbon to total carbon and does not require labeling. However, its detection requires a gaseous state, so the device can heat the sample and detect the generated gas.

[0028] In some embodiments of this application, such as Figure 1 As shown, it also includes: an air intake module 3, which has a first air passage 31, an air intake valve 32, an air intake pump 33, and a first flow meter 34. The air intake valve 32, the air intake pump 33, and the first flow meter 34 are all located on the first air passage 31, which is connected to the air inlet 16. The first air passage 31 can introduce test gas into the test chamber 11. The opening and closing of the first air passage 31 is controlled by the air intake valve 32. The air intake pump 33 draws the test gas into the first air passage 31, and the real-time flow rate of the test gas is measured by the first flow meter 34. Gas is supplied as needed. The air intake module 3 can introduce gases such as air and nitrogen according to the test requirements, thereby meeting the aerobic and anaerobic environmental requirements of the test chamber 11.

[0029] Specifically, such as Figure 1 As shown, the air intake module 3 also includes a carbon dioxide absorption device 35, a second air passage 36, and a second flow meter 37. The second air passage 36 connects the carbon dioxide absorption device 35 and the air inlet 16, and the first air passage 31 is connected to the carbon dioxide absorption device 35. The second flow meter 37 is installed on the second air passage 36. When the gas entering the first air passage 31 contains carbon dioxide, for example, if the gas is air, the greenhouse gas detected by the detection module 2 is not entirely the greenhouse gas released by the biological material, which will affect the accuracy of the test results. Therefore, carbon removal treatment can be performed on the test gas in the first air passage 31 before it enters the test chamber 11 to remove the carbon dioxide from the gas. The gas is then transported into the test chamber 11 through the second air passage 36. The second flow meter 37 can monitor the gas flow rate to obtain the final amount of gas entering the test chamber 11. At the same time, the gas flow rate of the second flow meter 37 can be compared with the gas flow rate in the first flow meter 34 to verify the carbon removal effect, thereby achieving the most ideal air intake effect.

[0030] More specifically, such as Figure 1 As shown, the first gas path 31 is connected to the lower part of the carbon dioxide absorption device 35, and the second gas path 36 is connected to the upper part of the carbon dioxide absorption device 35. The air intake of the first gas path 31 flows from the bottom to the top, which can ensure that the carbon dioxide in the test gas is fully absorbed, and then flows into the test chamber 11 from the second gas path 36 at the top, ensuring the accuracy of the test.

[0031] In some embodiments of this application, such asFigure 1 As shown, the signal control and data processing module 4 is provided with a processor 41 and a photovoltaic power component 42, the processor 41 is in communication connection with the test module 1, the detection module 2 and the gas inlet module 3, and the photovoltaic power component 42 is in electrical connection with the test module 1, the detection module 2 and the gas inlet module 3. The processor 41 includes a hardware part and a software part, wherein the hardware part preferably includes a chip, an NFC module, a display and a memory, and the software part preferably includes a test parameter control page and a data processing display page. The test parameters include, but are not limited to, gas delivery metering control parameters, temperature, humidity, pressure and spraying parameters of the test box 11, cooling circulation parameters, temperature compensation parameters, high-throughput detection device detection parameters, air pump parameters, etc. The data processing display includes, but is not limited to, various greenhouse gas release period curves, biological carbon and fossil carbon release period curves, greenhouse gas emission carbon dioxide equivalent curves, etc. The photovoltaic power component 42 is provided with a photovoltaic panel, which can generate photovoltaic electric energy for the test box 11. By using the above-mentioned signal control and data processing module 4, the related parameters of the gas purification and control module, the environmental test module 1 and the high-throughput detection module 2 can be controlled online, the greenhouse gas emission carbon dioxide equivalent curve can be quickly and accurately monitored, and green energy can be provided for the entire system, which is more energy-saving.

[0032] In some embodiments of the present application, as shown in Figure 1 The test module 1 further comprises a screw rod 17 rotatably installed inside the test box 11. The rotating screw rod 17 can ensure uniform dispersion of biological materials and environmental media, facilitating the release of greenhouse gases. The screw rod 17 is preferably arranged at a position slightly below the middle of the test box 11, which can better achieve the dispersion effect.

[0033] In some embodiments of the present application, as shown in Figure 1 The test module 1 further comprises a filter screen partition 18 arranged in the accommodation space 15 and dividing the accommodation space 15 into a first space 151 and a second space 152. The filter screen partition 18 is provided with filter holes for fluid flow. The first space 151 is used to accommodate biological materials, and the temperature control component 12, the sprayer 13 and the temperature and humidity pressure sensor 14 are all arranged in the first space 151. The second space 152 is used to accommodate filter particles, and the gas inlet 16 is connected to the second space 152. The filter screen partition 18 mainly plays a role in filtering impurities and bearing test materials, and the filter particles mainly play a role in filtering gas and liquid impurities. The gas inlet 16 is located in the second space 152, so that the incoming gas first passes through the filter particles and then passes through the filter screen partition 18 to enter the first space 151, avoiding the influence of other impurities in the test gas on the outlet gas of the test box 11.

[0034] Specifically, such as Figure 1 As shown, the test module 1 further includes an absorption and treatment device 19, which is connected to the second space 152 and is used to recover the liquid in the containing space 15. Preferably, a valve is provided at the connection point between the absorption and treatment device 19 and the test chamber 11, allowing for periodic liquid release and centralized treatment to avoid environmental pollution.

[0035] More specifically, such as Figure 1 As shown, the detection module 2 further includes: an air extraction device 25, the air extraction device 25 being disposed at the C 14 After detector 23 and greenhouse gas detector 24, a third gas path 26 connects the extraction device 25 and the absorption and treatment device 19, and is used to introduce greenhouse gases into the absorption and treatment device 19. By using the extraction device 25 and the third gas path 26 to extract greenhouse gases generated by the biological materials into the absorption and treatment device 19, they are treated together with the waste liquid generated by the test chamber 11, thus achieving the purpose of environmental protection.

[0036] In some embodiments of this application, such as Figure 1 As shown, the detection module 2 further includes a liquid circulation device 27, through which the condenser 22 and the sprayer 13 are connected. The liquid circulation device 27 can reuse the water produced by the condenser 22, spraying it back into the test chamber 11 by the sprayer 13, thus saving water resources.

[0037] In some embodiments of this application, such as Figure 1 As shown, the detection module 2 further includes a temperature compensator 28, which is used to adjust the temperature of the greenhouse gas discharged from the condensation device 22. By adjusting the temperature of the greenhouse gas, the requirements for high-throughput detection are met.

[0038] In some embodiments of this application, such as Figure 1 As shown, the detection module 2 further includes a flow controller 29, which is used to control the release rate and amount of greenhouse gases passing through. By adjusting the release rate and amount of greenhouse gases, the requirements for high-throughput detection are met.

[0039] In use, through the air inlet module 3, the test module 1 can carry out degradation experiments under various environmental factors such as aerobic, anaerobic, soil, compost, water body and other environmental conditions, and can also carry out aerobic and anaerobic superimposed environmental condition degradation experiments, and high temperature acceleration experiments, and can treat and purify the waste produced by degradation to avoid environmental release. The air inlet module 3 is mainly provided with an air inlet valve 32 and a carbon dioxide absorption device 35, which can effectively control the types and purity of the entering gas; the test module 1 is mainly provided with a temperature and humidity pressure sensor 14, a heating and stirring device, a sprayer 13 and a multi-layer filter screen partition plate 18, and a waste liquid and waste gas absorption treatment device 19, which can carry out experiments under various environmental factors and avoid environmental pollution; the high-throughput detection module 2 is provided with various greenhouse gas detectors 24 and C 14 The detector 13 is beneficial to quickly and accurately obtain the greenhouse gas emission carbon dioxide equivalent value.

[0040] Herein, the specific use process of the biodegradable material degradation analysis device is described as follows:

[0041] 1. Ventilation: according to the test atmosphere, open the air inlet valve 32 through the computer control system, ventilate for a period of time, wait for the generated greenhouse gas release curve to be stable, and obtain the greenhouse gas baseline value.

[0042] 2. Feeding: according to the test object and environmental conditions, feed the test substance and environmental medium, and rotate the screw rod 17 to make the test substance and environmental medium uniformly distributed.

[0043] 3. Parameter setting: set the test program and parameters according to the test conditions. The specific test program is a single environmental condition degradation program or a multi-environmental condition superimposed degradation program, and the specific test parameters are the gas related parameters of each module, as well as the temperature, humidity, pressure of the test box 11, the parameters of the screw rod 17, etc.

[0044] 4. Environmental test: start the test through the signal control module, and control the test process parameters online to ensure the smooth progress of the degradation test, including greenhouse gas release and degradation waste liquid filtration disposal.

[0045] 5. Degradation gas detection: the gas released by the environmental test box 11 is filtered by the filter grid 21, adjusted to the detection temperature by the condensate pipe and the temperature compensator 28, and then enters the high-throughput detector for detection, and feedback to the signal control and data processing module 4.

[0046] 6. Test result analysis and processing: the software of the computer control and data processing system automatically analyzes the test data online in real time, generates various greenhouse gas release period curves, biogenic carbon and fossil carbon release period curves, and greenhouse gas emission carbon dioxide equivalent curves. The carbon dioxide equivalent data value of the greenhouse gas carbon dioxide equivalent curve is calculated and corrected by the following formula:

[0047] M=∑m GHG *GWP-C 生物 *44 / 14-M0

[0048] Where M is the carbon dioxide equivalent data value of the degradation gas, M0 is the carbon dioxide equivalent data value of the atmospheric baseline, which is generally approximately 0, and m GHG The GWP (Global Warming Potential) represents the mass of greenhouse gases; it is a fixed parameter and can be referenced from values ​​published by the Intergovernmental Panel on Climate Change (IPCC). 生物 For biocarbon quality.

[0049] In summary, the degradation analysis device for biodegradable materials of this application controls the temperature of the containment space 15 through the temperature control component 12 in the test chamber 11 and controls the humidity of the containment space 15 through the sprayer 13. This allows the test chamber 11 to simulate various environments, such as aerobic, anaerobic, soil, compost, and aquatic conditions. It can also utilize high temperature, high humidity, and high pressure environments to accelerate the experiment and improve efficiency. Furthermore, sensors can detect and provide real-time temperature and humidity data, thereby controlling the test chamber 11 to achieve the optimal experimental environment. The filter grid 21 in the detection module 2 filters the greenhouse gases produced by the test module 1 and removes liquid through the condenser 22, thus achieving the desired C... 14 The detection requirements for detectors 23 and 24, C 14 Detector 23 is used to measure biocarbon, and greenhouse gas detector 24 is used for qualitative and quantitative analysis of greenhouse gases. This high-throughput detection method can quickly and accurately detect and qualitatively analyze the release of greenhouse gases, fossil carbon, and biocarbon in the experimental module 1, making the degradation test data more accurate.

[0050] The above are merely preferred embodiments of this application. It should be noted that, for those skilled in the art, several improvements and substitutions can be made without departing from the technical principles of this application, and these improvements and substitutions should also be considered within the scope of protection of this application.

Claims

1. A device for degradation analysis of a biodegradable material, characterized by, The utility model relates to a kind of biological material test device, including: Test module (1), the test module (1) has test box (11), temperature control component (12), sprayer (13) and temperature and humidity pressure sensor (14), the inside of the test box (11) is opened with the accommodation space (15) for accommodating biological material, the temperature control component (12), the sprayer (13) and the temperature and humidity pressure sensor (14) are all located in the accommodation space (15); a detection module (2) having a filter grid (21), a condensation device (22), a C 14 detector (23) and a greenhouse gas detector (24), the accommodation space (15) being in communication with the C 14 detector (23) and the greenhouse gas detector (24) through the filter grid (21) and the condensation device (22) arranged in sequence 14 the detector (23) is used for measuring biochar, and the greenhouse gas detector (24) is used for qualitative and quantitative analysis of greenhouse gases The test module (1) further includes: Filter screen partition (18), the filter screen partition (18) is located in the accommodation space (15), and the accommodation space (15) is divided into first space (151) and second space (152), the filter screen partition (18) is equipped with filter hole for fluid flow; The first space (151) is used for accommodating biological material, and the temperature control component (12), the sprayer (13) and the temperature and humidity pressure sensor (14) are all located in the first space (151); The second space (152) is used for accommodating filter particles, and the air inlet (16) is communicated with the second space (152).

2. The device for degradation analysis of biodegradable materials according to claim 1, characterized in that, Further including: Air inlet module (3), the air inlet module (3) has first gas path (31), air inlet valve (32), air inlet pump (33) and first flowmeter (34), the air inlet valve (32), the air inlet pump (33) and the first flowmeter (34) are all located on the first gas path (31), and the first gas path (31) is communicated with the air inlet (16).

3. The device for degradation analysis of biodegradable materials according to claim 2, characterized in that, The air inlet module (3) further includes carbon dioxide absorption device (35), second gas path (36) and second flowmeter (37), the second gas path (36) is communicated with the carbon dioxide absorption device (35) and the air inlet (16), and the first gas path (31) is communicated with the carbon dioxide absorption device (35), and the second flowmeter (37) is located on the second gas path (36).

4. The device for degradation analysis of biodegradable materials according to claim 3, characterized in that, The first gas path (31) is communicated with the lower part of the carbon dioxide absorption device (35), and the second gas path (36) is communicated with the upper part of the carbon dioxide absorption device (35).

5. The device for degradation analysis of biodegradable materials according to any one of claims 2 to 4, characterized in that, Further including: Signal control and data processing module (4), the signal control and data processing module (4) has processor (41) and photovoltaic power supply component (42), the processor (41) is connected with communication test module (1), detection module (2) and air inlet module (3), and the photovoltaic power supply component (42) is electrically connected with test module (1), detection module (2) and air inlet module (3).

6. The apparatus for degradation analysis of biodegradable materials according to claim 1, characterized by, The test module (1) further includes: Screw rod (17), the screw rod (17) is rotatably installed in the inside of the test box (11).

7. The apparatus for degradation analysis of biodegradable materials according to claim 1, characterized by, The test module (1) further includes: Absorption processing device (19), the absorption processing device (19) is communicated with the second space (152), for recycling liquid in the accommodation space (15).

8. The device for degradation analysis of biodegradable materials according to claim 7, characterized in that, The detection module (2) further includes: A gas suction device (25) is provided in the C 14 After the detector (23) and the outlet of the greenhouse gas detector (24); A third gas path (26) is connected between the gas extraction device (25) and the absorption treatment device (19) for guiding the greenhouse gas into the absorption treatment device (19).

9. The device for degradation analysis of biodegradable materials according to claim 1, characterized in that, The detection module (2) further comprises: A liquid circulation device (27) is connected between the condensing device (22) and the sprayer (13).

10. The device for degradation analysis of biodegradable materials according to claim 1, characterized in that, The detection module (2) further comprises: A temperature compensator (28) is arranged to adjust the temperature of the greenhouse gas discharged from the condensing device (22).

11. The device for degradation analysis of biodegradable materials according to claim 1, characterized in that, The detection module (2) further comprises: A flow controller (29) is arranged to control the release rate and release amount of the greenhouse gas passing through.

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