Anaerobic fermentation gas collection and purification integrated device
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- TIANJIN TEDA ENVIRONMENTAL PROTECTION
- Filing Date
- 2025-07-25
- Publication Date
- 2026-08-07
AI Technical Summary
[0003]厌氧发酵过程中往往会产生沼气,为满足沼气的后续使用需要往往需要对其进行处理,由于无法对内部的惰性气体进行处理,进而导致后续沼气的燃烧值降低同时由于厌氧发酵沼气的内部往往含有异味不能够满足实际的使用需要
[0015] 1. The anaerobic fermentation gas collection and purification integrated device provided by this utility model uses a small air compressor to compress and collect the gas purified by the purification mechanism, so as to facilitate subsequent centralized discharge and subsequent use. The purification mechanism is used to collect methane and carbon dioxide produced inside the anaerobic fermentation equipment, and at the same time dry it and eliminate the carbon dioxide contained inside, and eliminate the odor in the gas, so as to meet the needs of subsequent use, increase the purity of methane, and thus increase the calorific value during subsequent combustion.
Smart Images

Figure CN224604918U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of anaerobic fermentation gas treatment technology, specifically to an integrated device for anaerobic fermentation gas collection and purification. Background Technology
[0002] Anaerobic fermentation is the metabolic process by which microorganisms decompose organic matter (such as feces, straw, food ingredients, etc.) in an oxygen-deficient environment. The final products include biogas (methane and carbon dioxide), organic acids (such as lactic acid), alcohol, or other compounds.
[0003] Anaerobic fermentation often produces biogas, which needs to be processed to meet the needs of subsequent use. However, the inert gases inside cannot be processed, which leads to a decrease in the calorific value of the biogas. In addition, anaerobic fermentation biogas often contains odors and cannot meet the actual use requirements. Utility Model Content
[0004] This invention aims to solve the problems mentioned in the background art by providing an integrated device for anaerobic fermentation gas collection and purification.
[0005] The specific technical solution is as follows:
[0006] An integrated anaerobic fermentation gas collection and purification device includes a base, a small air compressor is fixedly installed on the right side of the top of the base, and a purification mechanism is set on the top of the base and to the left of the small air compressor.
[0007] The purification mechanism includes two tanks fixedly installed on the top of the base and a sealing cap threaded to the top of the tank. A first receiving tank is provided at the bottom of the sealing cap on the left side of the top of the base and inside the tank. A second receiving tank is provided at the bottom of the sealing cap on the right side of the top of the base and below the tank.
[0008] As a preferred embodiment of this utility model, the top of the sealing cover on the top left side of the base is connected to a first conduit, the bottom of the first conduit extends into the interior of the first receiving bucket, and the left side of the first conduit is connected to a first one-way valve.
[0009] As a preferred embodiment of this utility model, the top of the sealing cover on the left side of the base is connected to a second conduit, the top of the sealing cover on the right side of the base is connected to a third conduit, the bottom of the third conduit extends to the second receiving bucket, the left side of the third conduit is threadedly connected to a first connecting pipe, and the left side of the first connecting pipe is threadedly connected to the right side of the second conduit.
[0010] As a preferred embodiment of this utility model, the top of the sealing cover on the right side of the base is connected to a fourth conduit, the right side of the fourth conduit is connected to a second one-way valve, the right side of the second one-way valve is threadedly connected to a third connecting pipe, and the right side of the third connecting pipe is connected to the top of the small air compressor.
[0011] As a preferred embodiment of this utility model, the top of the tank is provided with an installation groove, and a rubber sealing gasket is provided inside the installation groove, with the top of the rubber sealing gasket contacting the bottom of the sealing cap.
[0012] As a preferred embodiment of this utility model, a connecting ring is fixedly installed at the bottom of the two sealing caps, and the connecting ring is rotatably connected to the first and second receiving barrels by means of threads.
[0013] As a preferred embodiment of this utility model, the front side of the small air compressor is connected to an air outlet, and a valve is fixedly installed on the rear side of the air outlet.
[0014] This utility model has the following beneficial effects:
[0015] 1. The anaerobic fermentation gas collection and purification integrated device provided by this utility model uses a small air compressor to compress and collect the gas purified by the purification mechanism, so as to facilitate subsequent centralized discharge and subsequent use. The purification mechanism is used to collect methane and carbon dioxide produced inside the anaerobic fermentation equipment, and at the same time dry it and eliminate the carbon dioxide contained inside, and eliminate the odor in the gas, so as to meet the needs of subsequent use, increase the purity of methane, and thus increase the calorific value during subsequent combustion.
[0016] 2. The anaerobic fermentation gas collection and purification integrated device provided by this utility model uses two tanks and a sealing cap to install and contain a first and a second container. The first container is used to hold chemical elements for removing carbon dioxide (including but not limited to calcium oxide, calcium hydroxide, and zirconium sodium zeolite, etc.). When calcium oxide removes carbon dioxide, it can also remove moisture from the gas, thereby satisfying the drying of the gas and facilitating subsequent combustion. The second container is used to hold activated carbon, which is used to remove odors from the gas. Attached Figure Description
[0017] Figure 1 A schematic diagram of the integrated anaerobic fermentation gas collection and purification device provided in this embodiment of the utility model;
[0018] Figure 2A schematic diagram of the tank structure of the integrated anaerobic fermentation gas collection and purification device provided in this embodiment of the utility model;
[0019] Figure 3 A schematic diagram of the first receiving tank and installation structure of the integrated anaerobic fermentation gas collection and purification device provided in this embodiment of the utility model;
[0020] Figure 4 A schematic diagram of the second container and installation structure of the integrated anaerobic fermentation gas collection and purification device provided in this embodiment of the utility model.
[0021] In the attached diagram: 1. Base; 2. Small air compressor; 3. Purification mechanism; 301. Tank; 302. Sealing cap; 303. First one-way valve; 304. First conduit; 305. Second conduit; 306. First connecting pipe; 307. Third conduit; 308. Fourth conduit; 309. Second one-way valve; 310. Third connecting pipe; 311. Mounting groove; 312. Rubber sealing gasket; 313. Connecting ring; 314. First receiving tank; 315. Second receiving tank; 4. Air outlet. Detailed Implementation
[0022] The technical solution of this utility model will be further described below with reference to the accompanying drawings and specific embodiments.
[0023] The accompanying drawings are for illustrative purposes only and are schematic diagrams, not actual images. They should not be construed as limiting the scope of this patent. To better illustrate the embodiments of this utility model, some components in the drawings may be omitted, enlarged, or reduced, and do not represent the actual dimensions of the product. It is understandable to those skilled in the art that some well-known structures and their descriptions may be omitted in the drawings.
[0024] In the accompanying drawings of this utility model, the same or similar reference numerals correspond to the same or similar components. In the description of this utility model, it should be understood that if terms such as "upper," "lower," "left," "right," "inner," and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, they are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, the terms used to describe positional relationships in the drawings are only for illustrative purposes and should not be construed as limiting this patent. For those skilled in the art, the specific meaning of the above terms can be understood according to the specific circumstances.
[0025] In the description of this utility model, unless otherwise explicitly specified and limited, the term "connection" or similar designation indicating the connection relationship between components should be interpreted broadly. For example, it can refer to a fixed connection, a detachable connection, or an integral part; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
[0026] Example
[0027] The integrated anaerobic fermentation gas collection and purification device provided in this embodiment, such as Figure 1 — Figure 4 As shown, the device includes a base 1, a small air compressor 2 fixedly installed on the right side of the top of the base 1, and a purification mechanism 3 set on the top of the base 1 and to the left of the small air compressor 2. The small air compressor 2 is used to compress and collect the gas purified by the purification mechanism 3, so as to facilitate subsequent centralized discharge and subsequent use. The purification mechanism 3 is used to collect the methane and carbon dioxide produced inside the anaerobic fermentation equipment, dry them, eliminate the carbon dioxide contained inside, and eliminate the odor in the gas, so as to meet the needs of subsequent use, increase the purity of methane, and thus increase the calorific value during subsequent combustion.
[0028] The purification mechanism 3 includes two tanks 301 fixedly installed on the top of the base 1 and a sealing cap 302 threadedly connected to the top of the tanks 301. A first container 314 is provided at the bottom of the sealing cap 302 on the top left side of the base 1 and inside the tank 301. A second container 315 is provided at the bottom of the sealing cap 302 on the top right side of the base 1 and below the tank 301. The two tanks 301 and the sealing cap 302 are used to install and accommodate the first container 314 and the second container 315. The first container 314 is used to hold the chemical elements for removing carbon dioxide (including but not limited to calcium oxide, calcium hydroxide, and zirconium sodium zeolite, etc.). When calcium oxide removes carbon dioxide, it can also remove moisture from the gas, thereby satisfying the drying of the gas and facilitating subsequent combustion. The second container 315 is used to hold activated carbon, which is used to remove odors from the gas.
[0029] The top of the sealing cap 302 on the top left of the base 1 is connected to the top of the first conduit 304. The bottom of the first conduit 304 extends into the interior of the first container 314. The left side of the first conduit 304 is connected to the first one-way valve 303. The first conduit 304 is used to install the first one-way valve 303. At the same time, the first one-way valve 303 is used to prevent gas from entering the interior of the anaerobic fermentation equipment through the first conduit 304 and affecting the subsequent fermentation. The first conduit 304 is also connected to the anaerobic fermentation equipment to discharge the generated methane gas for purification.
[0030] The top of the sealing cap 302 on the top left of the base 1 is connected to the second conduit 305, and the top of the sealing cap 302 on the top right of the base 1 is connected to the third conduit 307. The bottom of the third conduit 307 extends to the second container 315. The left side of the third conduit 307 is threadedly connected to the first connecting pipe 306. The left side of the first connecting pipe 306 is threadedly connected to the right side of the second conduit 305. The cooperation between the second conduit 305, the first connecting pipe 306 and the third conduit 307 is used to realize the communication between the first container 314 and the second container 315, thereby realizing the flow of gas.
[0031] The top of the sealing cover 302 on the right side of the base 1 is connected to the fourth conduit 308. The right side of the fourth conduit 308 is connected to the second one-way valve 309. The right side of the second one-way valve 309 is threadedly connected to the third connecting pipe 310. The right side of the third connecting pipe 310 is connected to the top of the small air compressor 2. The fourth conduit 308 and the third connecting pipe 310 are used to compress and store the filtered and purified methane through the small air compressor 2 for subsequent centralized discharge and use.
[0032] The top of the tank body 301 is provided with an installation groove 311, and a rubber sealing gasket 312 is provided inside the installation groove 311. The top of the rubber sealing gasket 312 contacts the bottom of the sealing cover 302. The installation groove 311 is used to accommodate the rubber sealing gasket 312. The rubber sealing gasket 312 is used to increase the connection and seal between the tank body 301 and the sealing cover 302, and to prevent the internal gas from leaking out and causing danger.
[0033] Connecting rings 313 are fixedly installed at the bottom of the two sealing caps 302. The connecting rings 313 are connected to the first container 314 and the second container 315 by thread rotation. The connection between the sealing caps 302 and the first container 314 and the second container 315 is achieved by the setting of the connecting rings 313, which also facilitates disassembly and replacement of the internal purification materials.
[0034] The front of the small air compressor 2 is connected to an air outlet 4, and a valve is fixedly installed on the rear side of the air outlet 4. The air outlet 4 is used to connect to an external storage device, so as to discharge the purified methane gas stored inside the small air compressor 2 for subsequent use.
[0035] In use, the entire unit is connected to the output end of the anaerobic fermentation equipment via the first conduit 304. After connection, the gas produced by the fermentation of substances inside the anaerobic fermentation equipment is sent to the inside of the first container 314 via the first conduit 304. The calcium oxide inside the first container 314 collects the moisture in the gas and simultaneously produces calcium hydroxide to react with and eliminate the carbon dioxide in the gas. The gas, which has been dehydrated and removed, is sent to the inside of the second container 315 via the second conduit 305, the first connecting pipe 306, and the third conduit 307 for odor adsorption and purification. The purified gas is extracted by the small air compressor 2 and compressed and stored. When needed, the storage and transfer device is connected to the gas outlet 4 to discharge the methane gas collected inside the small air compressor 2 for subsequent use.
[0036] The above are merely preferred embodiments of the present utility model and are not intended to limit the implementation methods and protection scope of the present utility model. Those skilled in the art should realize that any equivalent substitutions and obvious changes made based on the description and illustrations of the present utility model should be included within the protection scope of the present utility model.
Claims
1. An integrated device for anaerobic fermentation gas collection and purification, characterized in that, Includes a base (1), a small air compressor (2) is fixedly installed on the right side of the top of the base (1), and a purification mechanism (3) is provided on the top of the base (1) and on the left side of the small air compressor (2). The purification mechanism (3) includes two tanks (301) fixedly installed on the top of the base (1) and a sealing cap (302) threadedly connected to the top of the tank (301). A first container (314) is provided at the bottom of the sealing cap (302) on the left side of the top of the base (1) and inside the tank (301). A second container (315) is provided at the bottom of the sealing cap (302) on the right side of the top of the base (1) and below the tank (301).
2. The integrated anaerobic fermentation gas collection and purification device according to claim 1, characterized in that, The top of the sealing cap (302) on the top left of the base (1) is connected to the top of the first conduit (304), the bottom of the first conduit (304) extends into the interior of the first container (314), and the left side of the first conduit (304) is connected to the first one-way valve (303).
3. The integrated anaerobic fermentation gas collection and purification device according to claim 2, characterized in that, The top of the sealing cap (302) on the top left of the base (1) is connected to the top of the second conduit (305), and the top of the sealing cap (302) on the top right of the base (1) is connected to the top of the third conduit (307). The bottom of the third conduit (307) extends to the second receiving bucket (315). The left side of the third conduit (307) is threadedly connected to the first connecting pipe (306), and the left side of the first connecting pipe (306) is threadedly connected to the right side of the second conduit (305).
4. The integrated anaerobic fermentation gas collection and purification device according to claim 3, characterized in that, The top of the sealing cover (302) on the right side of the base (1) is connected to the top of the fourth conduit (308), the right side of the fourth conduit (308) is connected to the second one-way valve (309), the right side of the second one-way valve (309) is threadedly connected to the third connecting pipe (310), and the right side of the third connecting pipe (310) is connected to the top of the small air compressor (2).
5. The integrated anaerobic fermentation gas collection and purification device according to claim 4, characterized in that, The top of the tank (301) is provided with an installation groove (311), and a rubber sealing gasket (312) is provided inside the installation groove (311). The top of the rubber sealing gasket (312) contacts the bottom of the sealing cover (302).
6. The integrated anaerobic fermentation gas collection and purification device according to claim 5, characterized in that, Connecting rings (313) are fixedly installed at the bottom of the two sealing caps (302), and the connecting rings (313) are respectively connected to the first container (314) and the second container (315) by thread rotation.
7. The integrated anaerobic fermentation gas collection and purification device according to any one of claims 1-6, characterized in that, The front side of the small air compressor (2) is connected to an air outlet (4), and a valve is fixedly installed on the rear side of the air outlet (4).