A biogas recovery device for livestock farms

Abstract

This utility model discloses a biogas recovery device for a livestock farm, relating to the field of biogas recovery technology. It includes a biogas tank with a cover rotatably connected to its outer side. An inlet pipe is connected to the inner wall of the cover. An opening and closing assembly is provided on the outer side of the cover, and a fixing pipe is connected to the inner wall of the biogas tank. This utility model has the following advantages: The opening and closing assembly facilitates the detachment and positioning of the cover, allowing for easy cleaning of impurities inside the biogas tank when needed, thus preventing a decline in biogas quality and affecting subsequent utilization. The installation assembly facilitates the rotation of the filter disc, making it easy to install and disassemble. This prevents corrosive substances from entering the generator or purification device due to inconvenient disassembly of the filter equipment, accelerating equipment wear, increasing filtration resistance, affecting biogas flow, and reducing overall gas production efficiency.

Description

Technical Field

[0001] This utility model relates to the field of biogas recovery technology, and in particular to a biogas recovery device for livestock farms. Background Technology

[0002] The biogas recovery device in livestock farms is the core equipment for realizing the resource utilization, energy utilization, and environmental protection of waste in modern livestock and poultry farming. Its role spans multiple dimensions such as waste treatment, energy production, environmental improvement, and economic benefit enhancement. It converts high-concentration organic waste such as livestock and poultry manure and flushing wastewater into biogas, biogas residue, and biogas liquid through anaerobic fermentation, thereby reducing and rendering pollutants harmless. At the same time, the main component of biogas is methane, which can be directly used for power generation, heating, or purified into biogas to replace fossil fuels.

[0003] In modern farms, biogas recovery devices are not only core equipment for waste treatment, but also key links in achieving resource recycling, energy conservation and emission reduction, and economic value-added. In current practical use, biogas tanks need to be cleaned regularly to remove sediment. If impurities such as siloxanes and hydrogen sulfide crystals cannot be removed in time, the quality of biogas may decline, affecting subsequent utilization and directly leading to increased maintenance costs, increased safety risks, decreased gas production efficiency, and economic losses. Secondly, if the filter mechanism is inconvenient to replace, particulate matter or corrosive substances may enter the generator or purification device, accelerating equipment wear, increasing filtration resistance, affecting biogas flow, and reducing overall gas production efficiency. Utility Model Content

[0004] The purpose of this section is to outline some aspects of embodiments of the present invention and to briefly describe some preferred embodiments. Simplifications or omissions may be made in this section, as well as in the abstract and title of this application, to avoid obscuring the purpose of these documents; however, such simplifications or omissions should not be construed as limiting the scope of the present invention.

[0005] To solve the above-mentioned technical problems, this utility model provides the following technical solution:

[0006] A biogas recovery device for a livestock farm includes a biogas box, a box cover rotatably connected to the outside of the biogas box, a feed pipe connected to the inner wall of the box cover, an opening and closing assembly provided on the outside of the box cover, a fixing pipe connected to the inner wall of the biogas box, a fixing tank connected to one end of the fixing pipe, a blower installed at one end of the fixing tank, a connecting pipe connected to the air outlet of the blower, an installation assembly provided on the outside of the connecting pipe, and a gas storage tank connected to one end of the connecting pipe.

[0007] The opening and closing assembly includes a snap-fit ​​block slidably connected to the outside of the box cover, and a snap-fit ​​groove is fixedly connected to the outside of the biogas box, with the outside of the snap-fit ​​block slidably connected to the inner wall of the snap-fit ​​groove.

[0008] The mounting assembly includes a fixing ring rotatably connected to the outside of the connecting pipe, a filter disc being mounted on the inner wall of the fixing ring, and a limit rod being slidably connected to the outside of the connecting pipe.

[0009] As a preferred embodiment of the biogas recovery device for livestock farms described in this utility model, two sets of support rings are fixed on the outside of the biogas box to support the fixed pipe.

[0010] As a preferred embodiment of the biogas recovery device for livestock farms described in this utility model, a fixing block is fixedly connected to the outside of the biogas box, and a limit bolt is threadedly connected to the inner wall of the fixing block, and the outer side of the limit bolt is threadedly connected to the inner wall of the box cover.

[0011] In a preferred embodiment of the biogas recovery device for livestock farms described in this utility model, a support block is fixedly connected to the outer side of the biogas tank, and a support rod is fixedly connected to the inner wall of the support block, with the outer side of the support rod rotatably connected to the inner wall of the tank cover.

[0012] In a preferred embodiment of the biogas recovery device for livestock farms described in this utility model, a valve is installed on the outside of the fixed pipe, and a drain pipe is connected to the bottom of the fixed tank.

[0013] In a preferred embodiment of the biogas recovery device for livestock farms described in this utility model, a limiting plate is fixedly connected to the outer side of the limiting rod, a spring is provided on the outer side of the limiting rod, and the outer side of the limiting plate is fixedly connected to one end of the spring.

[0014] In a preferred embodiment of the biogas recovery device for livestock farms described in this utility model, the inner side of the fixing ring is bolted with an installation block for connecting the filter disc, the inner wall of the snap-fit ​​block is slidably connected with a plug rod, and the outer side of the plug rod is slidably connected with the inner wall of the snap-fit ​​groove.

[0015] In summary, this utility model has the following beneficial effects:

[0016] By incorporating an opening and closing mechanism, the cover can be easily detached and positioned, facilitating the cleaning of impurities inside the biogas tank when needed. This prevents a decline in biogas quality and ensures its continued use. Furthermore, the installation mechanism allows for easy rotation of the filter disc, facilitating its installation and removal. This prevents corrosive substances from entering the generator or purification unit due to inconvenient disassembly of the filter equipment, which could accelerate equipment wear, increase filtration resistance, impede biogas flow, and reduce overall gas production efficiency. Attached Figure Description

[0017] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Among them:

[0018] Figure 1 This is a structural diagram of the biogas recovery device in a livestock farm.

[0019] Figure 2 This is another structural view of the biogas recovery device in the livestock farm.

[0020] Figure 3 This is a structural diagram of the connecting pipes for a biogas recovery device in a livestock farm.

[0021] Figure 4 for Figure 3 The enlarged structural diagram at point A is shown.

[0022] The following are the labels in the diagram: 1. Biogas tank; 2. Tank cover; 3. Feed pipe; 4. Opening and closing assembly; 41. Snap-fit ​​block; 42. Snap-fit ​​groove; 5. Fixing pipe; 6. Fixing tank; 7. Blower; 8. Connecting pipe; 9. Mounting assembly; 91. Fixing ring; 92. Filter disc; 93. Limiting rod; 10. Gas storage tank; 11. Support ring; 12. Fixing block; 13. Limiting bolt; 14. Support block; 15. Support rod; 16. Valve; 17. Drain pipe; 18. Limiting plate; 19. Spring; 20. Mounting block; 21. Insertion rod. Detailed Implementation

[0023] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0024] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0025] Secondly, the term "an embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that excludes other embodiments.

[0026] Example 1:

[0027] Reference Figures 1-4 This is the first embodiment of the present invention. This embodiment provides a biogas recovery device for a livestock farm, including a biogas box 1 and a cover 2 rotatably connected to the outside of the biogas box 1. The inner wall of the cover 2 is connected to a feed pipe 3. An opening and closing component 4 is provided on the outside of the cover 2. A fixing pipe 5 is connected to the inner wall of the biogas box 1. One end of the fixing pipe 5 is connected to a fixing tank 6. A blower 7 is installed at one end of the fixing tank 6. The air outlet of the blower 7 is connected to a connecting pipe 8. An installation component 9 is provided on the outside of the connecting pipe 8. One end of the connecting pipe 8 is connected to a gas storage tank 10.

[0028] The cover 2 allows for cleaning of the biogas tank 1 when needed. The feed pipe 3 facilitates the addition of fermentation materials to the inside of the biogas tank 1 when needed. The opening and closing component 4 allows for convenient opening and closing of the cover 2 when needed, thus facilitating cleaning of the inside of the biogas tank 1. The fixing pipe 5 facilitates connection to the fixing tank 6, which facilitates reducing the water content in the biogas and thus improving the purity of the biogas. The blower 7 can extract the air from the inside of the fixing tank 6, thereby creating a negative pressure area, which facilitates the extraction of biogas from the biogas tank 1. The connecting pipe 8 facilitates the installation of the mounting component 9, which can filter the biogas.

[0029] The opening and closing assembly 4 includes a snap-fit ​​block 41 that is slidably connected to the outside of the cover 2. A snap-fit ​​groove 42 is fixedly connected to the outside of the biogas box 1, and the outside of the snap-fit ​​block 41 is slidably connected to the inner wall of the snap-fit ​​groove 42.

[0030] When it is necessary to open or close the lid 2, first pull the plug rod 21 to disengage the locking block 41 from the locking groove 42. If the lid 2 is rotated directly, the locking block 41 will be limited by the locking groove 42. Therefore, the locking block 41 should be lifted upwards first. The locking block 41 slides along the outside of the lid 2, thereby disengaging the locking block 41 from the locking groove 42. At this time, the lid 2 can be rotated to complete the opening and closing.

[0031] The mounting assembly 9 includes a retaining ring 91 rotatably connected to the outside of the connecting pipe 8, a filter disc 92 mounted on the inner wall of the retaining ring 91, and a limit rod 93 slidably connected to the outside of the connecting pipe 8.

[0032] The fixing ring 91 can drive the filter disc 92 to rotate, thereby facilitating the installation and removal of the filter disc 92. The limiting rod 93 can limit the fixing ring 91, thereby facilitating the installation and removal of the filter disc 92. The filter disc 92 is an activated carbon plate. In the biogas recovery system, activated carbon is mainly used for deep purification of biogas, removing trace impurities such as hydrogen sulfide, volatile organic compounds, and siloxanes, and improving the quality of biogas to meet the requirements of subsequent utilization such as power generation and purification into biomethane.

[0033] Example 2:

[0034] This is the second embodiment of the present invention, which is based on the previous embodiment.

[0035] Specifically, two sets of support rings 11 are fixed on the outside of the biogas box 1 to support the fixed pipe 5.

[0036] Specifically, a fixing block 12 is fixedly connected to the outside of the biogas box 1, and a limit bolt 13 is threadedly connected to the inner wall of the fixing block 12, and the outer side of the limit bolt 13 is threadedly connected to the inner wall of the box cover 2.

[0037] The use of the fixing block 12 and the limiting bolt 13 together can facilitate further limiting of both sides of the cover 2, thereby preventing biogas from leaking from the connection between the cover 2 and the biogas box 1.

[0038] Specifically, a support block 14 is fixedly connected to the outside of the biogas box 1, and a support rod 15 is fixedly connected to the inner wall of the support block 14. The outer side of the support rod 15 is rotatably connected to the inner wall of the box cover 2.

[0039] The cooperation between the support block 14 and the support rod 15 facilitates the rotation of the auxiliary cover 2, making it easier to open and close the cover 2 when needed, and thus making it easier to clean the biogas tank 1.

[0040] Specifically, a valve 16 is installed on the outside of the fixed pipe 5, and a drain pipe 17 is connected to the bottom of the fixed tank 6.

[0041] Valve 16 can seal the fixed pipe 5 when the blower 7 starts, thereby preventing the fixed tank 6 from failing to form a negative pressure area.

[0042] Example 3:

[0043] This is the third embodiment of the present invention, which is based on the first two embodiments.

[0044] Specifically, a limiting piece 18 is fixedly connected to the outer side of the limiting rod 93, and a spring 19 is provided on the outer side of the limiting rod 93, with the outer side of the limiting piece 18 fixedly connected to one end of the spring 19.

[0045] The limiting piece 18 can easily limit the spring 19, and the spring 19 can limit the limiting rod 93, thereby facilitating the rotation of the fixing ring 91 and the filter disc 92, and thus facilitating the installation and removal of the filter disc 92.

[0046] Specifically, the inner side of the fixing ring 91 is bolted with a mounting block 20 for connecting the filter disc 92, and the inner wall of the snap-fit ​​block 41 is slidably connected with a plug rod 21, and the outer side of the plug rod 21 is slidably connected with the inner wall of the snap-fit ​​groove 42.

[0047] Mounting block 20 facilitates the connection between retaining ring 91 and filter disc 92, thereby facilitating the installation and removal of retaining ring 91 and filter disc 92.

[0048] In use, first, the biogas fermentation material is fed into the biogas tank 1 through the feed pipe 3. After biogas is produced, valve 16 is closed, and then blower 7 is started. At this time, blower 7 extracts the air from the fixed tank 6. Then blower 7 is turned off and valve 16 is opened. At this time, biogas will enter the fixed tank 6 due to negative pressure, stop in the fixed tank 6, and separate the moisture. Then blower 7 is started again to draw the biogas into the connecting pipe 8, and then through the filter disc 92 into the gas storage tank 10. When cleaning the biogas tank 1, first pull the plug rod 21, then... Pull the locking block 41 to disengage it from the locking groove 42, and then rotate the limiting bolt 13 to release the cover 2. At this time, the cover 2 can be rotated to clean the biogas tank 1. When installing and disassembling the filter disc 92, first pull the limiting rod 93. At this time, the limiting rod 93 drives the limiting plate 18 to compress the spring 19, thereby releasing the fixing ring 91. Then rotate the fixing ring 91, thereby driving the filter disc 92 to rotate. Then, the fixing ring 91 is separated from the filter disc 92 by the bolt on the outside of the mounting block 20, thereby completing the disassembly of the filter disc 92. After preparation, you can start the operation again.

[0049] It should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A biogas recovery device for a livestock farm, comprising a biogas tank (1), characterized in that: The biogas box (1) is rotatably connected to a box cover (2), the inner wall of the box cover (2) is connected to a feed pipe (3), the outer side of the box cover (2) is provided with an opening and closing component (4), the inner wall of the biogas box (1) is connected to a fixing pipe (5), one end of the fixing pipe (5) is connected to a fixing tank (6), one end of the fixing tank (6) is installed with a blower (7), the air outlet of the blower (7) is connected to a connecting pipe (8), the outer side of the connecting pipe (8) is provided with an installation component (9), one end of the connecting pipe (8) is connected to a gas storage tank (10); The opening and closing assembly (4) includes a snap-fit ​​block (41) slidably connected to the outside of the box cover (2), and a snap-fit ​​groove (42) is fixedly connected to the outside of the biogas box (1), and the outside of the snap-fit ​​block (41) is slidably connected to the inner wall of the snap-fit ​​groove (42). The mounting assembly (9) includes a fixing ring (91) rotatably connected to the outside of the connecting pipe (8), a filter disc (92) is mounted on the inner wall of the fixing ring (91), and a limit rod (93) is slidably connected to the outside of the connecting pipe (8).

2. The biogas recovery device for livestock farms as described in claim 1, characterized in that: The biogas box (1) is fixed with two sets of support rings (11) on the outside for supporting the fixed pipe (5).

3. The biogas recovery device for livestock farms as described in claim 1, characterized in that: A fixing block (12) is fixedly connected to the outside of the biogas box (1). A limit bolt (13) is threadedly connected to the inner wall of the fixing block (12), and the outer side of the limit bolt (13) is threadedly connected to the inner wall of the box cover (2).

4. The biogas recovery device for livestock farms as described in claim 1, characterized in that: A support block (14) is fixedly connected to the outside of the biogas box (1), and a support rod (15) is fixedly connected to the inner wall of the support block (14), and the outer side of the support rod (15) is rotatably connected to the inner wall of the box cover (2).

5. The biogas recovery device for livestock farms as described in claim 1, characterized in that: A valve (16) is installed on the outside of the fixed pipe (5), and a drain pipe (17) is connected to the bottom of the fixed tank (6).

6. The biogas recovery device for livestock farms as described in claim 1, characterized in that: A limiting piece (18) is fixedly connected to the outer side of the limiting rod (93), and a spring (19) is provided on the outer side of the limiting rod (93), and the outer side of the limiting piece (18) is fixedly connected to one end of the spring (19).

7. The biogas recovery device for livestock farms as described in claim 1, characterized in that: The inner side of the fixing ring (91) is bolted with a mounting block (20) for connecting the filter disc (92). The inner wall of the snap-fit ​​block (41) is slidably connected with a plug rod (21), and the outer side of the plug rod (21) is slidably connected with the inner wall of the snap-fit ​​groove (42).

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