CN218382230U - Water body anaerobic biodegradation experimental device - Google Patents
Water body anaerobic biodegradation experimental device Download PDFInfo
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- CN218382230U CN218382230U CN202222277662.6U CN202222277662U CN218382230U CN 218382230 U CN218382230 U CN 218382230U CN 202222277662 U CN202222277662 U CN 202222277662U CN 218382230 U CN218382230 U CN 218382230U
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Abstract
The utility model discloses a water anaerobism biodegradable experimental apparatus, including airtight container, airtight container's open end is provided with the detachable top cap, the up end fixed mounting of top cap has pressure gauge and first gas collection unit, wherein, first gas collection unit includes first flexible gas collection container and first pipeline, the open end of first flexible gas collection container is provided with self sealss sampling cap, self sealss sampling cap can be dismantled with the wherein one end of first pipeline and be connected, the other end of first pipeline passes through top cap and airtight container intercommunication, and the middle part of first pipeline is provided with the valve, wherein, the valve is under the state of closing, self sealss sampling cap is connected with the scale injector, extract the inside whole gases of storing of first flexible gas collection container through the scale injector. The beneficial effects of the utility model are that: the device is designed by using low-cost components, and simultaneously realizes the monitoring of two parameters of gas production volume and pressure change in the test process, thereby achieving mutual verification between methods and ensuring the accuracy of data.
Description
Technical Field
The utility model relates to a plastics degradation survey technical field especially relates to a water anaerobism biodegradable experiment device.
Background
The degradation performance of plastics is the most important index in material requirements, various methods are provided for plastic degradation testing, the mainstream method at home and abroad is aerobic composting, but the method is long in testing time, and generally takes 1.5-6 months. Compared with aerobic composting, the anaerobic degradation method is more advantageous in test time, generally 2 months, and the longest time is not more than 3 months, so that a great amount of time is saved for experimenters.
The national standard GB/T32106-2015 of the water body anaerobic degradation method provides two test methods of a pressure method and a volume method and corresponding devices. The pressure method device calculates the degradation condition according to the reading of the top pressure gauge so as to judge the degradation process of the inoculum in the container, but the test container has small head space generally, the generated pressure change is not obvious, and the error of the test result is often large. Although the volumetric method device has higher measurement precision than the pressure method device, the design is complex, components such as a culture container, a gas collecting pipe with high precision and the like need to be additionally customized, the manufacturing cost is higher, and the operation process is also complex. For experimenters, the two conceptual devices have respective defects, and a low-cost high-precision experimental device for anaerobic biodegradation of water body is urgently needed to be obtained.
SUMMERY OF THE UTILITY MODEL
To the above problem, the utility model discloses mainly provide a water anaerobism biodegradation experimental apparatus based on the volumetric method, aim at solving the problem that water anaerobism degradation volumetric method device cost of manufacture is high simultaneously.
In order to solve the technical problem, the technical scheme of the utility model as follows:
the utility model provides a water anaerobism biodegradable experimental apparatus, includes airtight container, airtight container's open end is provided with the detachable top cap, the up end fixed mounting of top cap has pressure gauge and a gas collection unit, wherein, a gas collection unit includes a flexible gas collection container and first pipeline, the open end of a flexible gas collection container is provided with self sealss sample cap, self sealss sample cap with the connection can be dismantled to one of them one end of first pipeline, the other end of first pipeline passes through the top cap with airtight container intercommunication, just the middle part of first pipeline is provided with the valve, wherein, the valve is under the state of closing, self sealss sample cap is connected with the scale injector, through the scale injector extraction the inside whole gas that stores of a flexible gas collection container.
In some embodiments, the first flexible gas collection container is an aluminum foil gas pouch.
In some embodiments, the gas collection device further comprises a second gas collection unit, wherein the second gas collection unit comprises a second flexible gas collection container and a second pipeline, an open end of the second flexible gas collection container is detachably connected with one end of the second pipeline, the other end of the second pipeline is communicated with the closed container through the top cover, and a pressure release valve is arranged in the middle of the second pipeline.
In some embodiments, the second flexible gas collection container is an aluminum foil gas bag.
In some embodiments, the top cover is made of metal.
In some embodiments, the top cover is provided with a lock catch at a side thereof, and the open side of the closed container is provided with a ring-shaped protrusion engaged with the lock catch.
In some embodiments, the inside of the top cover is provided with a ring-shaped sealing ring.
In some embodiments, the closed container is a brown glass bottle.
In some embodiments, the valve is an automatic pressure relief valve.
The utility model has the advantages that: the pressure gauge and the first gas collecting unit are arranged on the top cover of the closed container, the pressure gauge is used for measuring the pressure value in the closed container, the pressure measuring device can be used for measuring and calculating by a pressure method, the first gas collecting unit adopts components which are simple in structure and low in cost, such as the first flexible gas collecting container, the first pipeline, the self-sealing sampling cap and the valve, and the like, and a scale injector is used for extracting all gas stored in the first flexible gas collecting container and can be used for measuring and calculating by a volumetric method. The device mainly adopts a volumetric method, a pressure method is adopted to obtain the degradation rate before the volumetric method is adopted, then a valve is opened to transfer the biogas generated by the closed container to the first flexible gas collection container, the gas extracted by the scale injector is the generated biogas, and the degradation rate can be calculated by adopting the volumetric method, so that the monitoring of two parameters of the gas generation volume and the pressure change in the test process can be realized simultaneously, the mutual verification among the methods is achieved, and the accuracy of the data is ensured. Moreover, the device is formed by combining common parts in a laboratory, special customization is not needed, the experiments of two detection methods can be completed simultaneously by using one set of test equipment, and the validity of a test result is greatly ensured.
Drawings
FIG. 1 is a schematic structural diagram of an experimental apparatus for anaerobic biodegradation of a water body disclosed in an embodiment of the present invention;
wherein: 1-a closed container, 2-a top cover, 3-a pressure gauge, 4-a first flexible gas collection container, 5-a first pipeline, 6-a self-sealing sampling cap, 7-a valve, 8-a scale injector, 9-a second flexible gas collection container, 10-a second pipeline, 11-a pressure release valve, 101-an annular bulge and 201-a lock catch.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention clearer and clearer, the following describes the contents of the present invention in further detail with reference to the accompanying drawings and detailed description. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not to be construed as limiting the invention. It should be further noted that, for the convenience of description, only some but not all of the relevant portions of the present invention are shown in the drawings.
The embodiment provides a water body anaerobic biodegradation experimental apparatus, as shown in fig. 1, including airtight container 1, airtight container 1's open end is provided with detachable top cap 2, top end fixed mounting of top cap 2 has pressure gauge 3 and first gas collection unit, wherein, first gas collection unit includes first flexible gas collection container 4 and first pipeline 5, the open end of first flexible gas collection container 4 is provided with self sealss sampling cap 6, self sealss sampling cap 6 can be dismantled with one of them end of first pipeline 5 and be connected, the other end of first pipeline 5 passes through top cap 2 and airtight container 1 intercommunication, and the middle part of first pipeline 5 is provided with valve 7, wherein, valve 7 is under the state of closing, self sealss sampling cap 6 is connected with scale injector 8, extract the inside whole gases of storing of first flexible gas collection container 4 through scale injector 8.
The device mainly adopts a volume method for measurement, and a pressure method for measurement is taken as a means for proving the volume method. For the pressure method, the valve 7 is in a closed state firstly in the culture process, the closed container 1 is ensured not to be communicated with the outside or the first gas collection unit, the pressure change in the closed container 1 is read through the pressure gauge 3, the current pressure value is recorded after the pressure value reaches a certain value, the degradation rate under the pressure method is obtained through calculation, and then the valve 7 is opened to enter the volumetric measurement process. For the volumetric method, a headspace space with a certain height needs to be reserved at the top of the closed container 1, which is beneficial to timely collecting the biogas by the first flexible gas collecting container 4, after the valve 7 is opened, the atmospheric pressure in the first flexible gas collecting container 4 and the atmospheric pressure in the closed container 1 reach the atmospheric pressure at the same time, the valve 7 is closed immediately, the gas stored in the first flexible gas collecting container 4 is the produced biogas, the first flexible gas collecting container 4 is used as a medium for collecting the biogas, the staged gas production can be obtained by extracting through the scale injector 8, and then the degradation rate under the volumetric method is calculated. The degradation rates obtained by the two methods can be mutually verified.
In this embodiment, a pressure gauge 3 and a first gas collection unit are arranged on a top cover 2 of a closed container 1, the pressure gauge 3 is used for measuring the pressure value in the closed container 1, and the first gas collection unit can be used for measurement and calculation of a pressure method, the first gas collection unit adopts components which are simple in structure and low in cost, such as a first flexible gas collection container 4, a first pipeline 5, a self-sealing sampling cap 6 and a valve 7, and the like, and can be used for measurement and calculation of a volume method by extracting all gas stored in the first flexible gas collection container 4 through a scale injector 8. The device mainly adopts a volumetric method, a pressure method is adopted to obtain the degradation rate before the volumetric method is adopted, then a valve 7 is opened to transfer the biogas generated by the closed container 1 to the first flexible gas collection container 4, the gas extracted by the scale injector 8 is the generated biogas, and the degradation rate can be calculated by adopting the volumetric method, so that the monitoring of two parameters of gas generation volume and pressure change in the test process can be realized simultaneously, the mutual verification among the methods is achieved, and the accuracy of data is ensured. Moreover, the device is formed by combining common parts in a laboratory, special customization is not needed, the experiments of two detection methods can be completed simultaneously by using one set of test equipment, and the validity of a test result is greatly ensured.
In addition, the pressure gauge 3 can display the degradation degree by the change of the pressure in time, and reflects the behavior of whether the inside of the closed container 1 is degraded or not. The pressure gauge 3 may be a device of different accuracy depending on the size of the closed vessel 1.
And the device also comprises a second gas collecting unit, and a second flexible gas collecting container 9 is used as an auxiliary container. Wherein, the second gas collection unit includes flexible gas collection container 9 of second and second pipeline 10, and the open end of flexible gas collection container 9 of second can be dismantled with one of them one end of second pipeline 10 and be connected, and the other end of second pipeline 10 passes through top cap 2 and 1 intercommunication of airtight container, and the middle part of second pipeline 10 is provided with relief valve 11. Under normal conditions, only when the first flexible gas collecting container 4 collects gas and the gas production condition is large, the second flexible gas collecting container 9 is used for collecting excessive gas by opening the pressure release valve 11 so as to ensure the safety of the test.
Since the scale injector 8 needs to extract the gas in the first flexible gas collecting container 4, the first flexible gas collecting container 4 needs to be made of a flexible material. Optionally, the first flexible gas collecting container 4 and the second flexible gas collecting container 9 can both select an aluminum foil gas bag. The aluminum foil air bag has certain plasticity, and different volumes can be selected according to the gas release amount of a sample.
Because the top cap 2 need process three mounting holes that are used for fixed first flexible gas collection container 4, second pipeline 10 and pressure gauge 3, top cap 2 is the metal material.
The side or top of the top cover 2 is provided with a lock 201, and the side of the opening of the closed container 1 is provided with a ring-shaped protrusion 101 matched with the lock 201. The lock catch 201 can ensure the sealing of the closed container 1 and the top cover 2, relatively good anaerobic environment is manufactured, the closed container 1 can be made into a cylindrical shape, a square shape and a hexagonal shape, and the size and the height can be adjusted according to the scale of the test;
to further enhance the sealing effect of the closed container 1, a ring-shaped sealing ring (not shown) is disposed on the inner side of the top cover 2.
Preferably, the closed container 1 is a brown glass bottle. The closed container 1 can select the brown glass container suitable for use in the laboratory, and the brown glass material can be perfectly protected from light, so that the bottle body which provides a good living environment for anaerobic microorganisms in the water body is made of glass materials, and can also be made of organic glass and other materials according to the experimental requirements.
As another preferred embodiment of the present invention, the valve employs an automatic pressure relief valve, and when the pressure in the closed container 1 reaches the predetermined pressure of the automatic pressure relief valve, the automatic pressure relief valve is opened immediately, and the biogas generated by the closed container 1 is transferred to the first flexible gas collecting container 4. In this embodiment, the type selection of the automatic relief valve needs to be determined according to the material of the closed container 1 or the condition such as the limit pressure marked on the closed container 1.
The above embodiments are only for illustrating the technical concept and features of the present invention, and the purpose thereof is to enable those skilled in the art to understand the contents of the present invention and to implement the present invention, which cannot limit the protection scope of the present invention. All equivalent changes and modifications made according to the spirit of the present invention should be covered by the protection scope of the present invention.
Claims (9)
1. The utility model provides a water anaerobism biodegradable experimental apparatus, includes the closed container, its characterized in that, the open end of closed container is provided with the detachable top cap, the up end fixed mounting of top cap has pressure gauge and first gas collection unit, wherein, first gas collection unit includes first flexible gas collection container and first pipeline, the open end of first flexible gas collection container is provided with self sealss sample cap, self sealss sample cap with wherein one end of first pipeline can be dismantled and be connected, the other end of first pipeline passes through the top cap with the closed container intercommunication, just the middle part of first pipeline is provided with the valve, wherein, the valve is under the state of closing, self sealss sample cap is connected with the scale syringe, through the scale syringe extraction the whole gas of the inside storage of first flexible gas collection container.
2. The experimental apparatus for anaerobic biodegradation of water body according to claim 1, wherein said first flexible gas collection container is an aluminum foil gas bag.
3. The experimental device for water body anaerobic biodegradation according to claim 1, further comprising a second gas collecting unit, wherein the second gas collecting unit comprises a second flexible gas collecting container and a second pipeline, an open end of the second flexible gas collecting container is detachably connected with one end of the second pipeline, the other end of the second pipeline is communicated with the closed container through the top cover, and a pressure relief valve is arranged in the middle of the second pipeline.
4. The experimental apparatus for anaerobic biodegradation of water body according to claim 3, wherein said second flexible gas collecting container is an aluminum foil gas bag.
5. The experimental device for the anaerobic biodegradation of water body of claim 1, wherein the top cover is made of metal.
6. The experimental device for the anaerobic biodegradation of water bodies of claim 5, wherein a lock catch is arranged on the side surface of the top cover, and a ring of annular bulges matched with the lock catch are arranged on the side surface of the opening of the closed container.
7. The experimental device for the anaerobic biodegradation of water bodies of claim 1, wherein a ring of annular sealing ring is arranged on the inner side of the top cover.
8. The experimental device for the anaerobic biodegradation of water body of claim 1, wherein the closed container is a brown glass bottle.
9. The experimental apparatus for anaerobic biodegradation of water body of claim 1 wherein said valve is an automatic pressure relief valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222277662.6U CN218382230U (en) | 2022-08-29 | 2022-08-29 | Water body anaerobic biodegradation experimental device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222277662.6U CN218382230U (en) | 2022-08-29 | 2022-08-29 | Water body anaerobic biodegradation experimental device |
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| Publication Number | Publication Date |
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| CN218382230U true CN218382230U (en) | 2023-01-24 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202222277662.6U Active CN218382230U (en) | 2022-08-29 | 2022-08-29 | Water body anaerobic biodegradation experimental device |
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| CN (1) | CN218382230U (en) |
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- 2022-08-29 CN CN202222277662.6U patent/CN218382230U/en active Active
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Inventor after: Xie Canghao Inventor after: Bi Haobin Inventor after: Hou Junwen Inventor after: Chen Sheng Inventor after: Yao Haocheng Inventor after: Huang Meiling Inventor after: Li Dan Inventor after: Zhong Huaining Inventor after: Zheng Jianguo Inventor before: Xie Canghao Inventor before: Bi Haobin Inventor before: Hou Junwen Inventor before: Chen Sheng Inventor before: Yao Haocheng Inventor before: Huang Meiling Inventor before: Li Dan Inventor before: Zhong Huaining Inventor before: Zheng Jianguo |