Livestock farm biogas and BOG comprehensive utilization mechanism

Abstract

The utility model relates to the technical field of biogas utilization, in particular to a livestock farm biogas and BOG comprehensive utilization mechanism which comprises a collecting cover installed at the top of a livestock farm biogas and BOG pool, a gas collecting treatment box is installed at the top of the collecting cover, the gas collecting treatment box is externally connected with a biogas compressor, and a drying device is installed in the gas collecting treatment box. The collecting cover is installed on the top of a biogas and BOG pool of a livestock farm, a mixture of biogas and BOG can be effectively collected, the collecting efficiency of the gas is ensured, leakage is reduced, potential influences on the environment are reduced, the arranged gas collecting treatment box serves as a gas transfer station, a drying device is arranged in the gas collecting treatment box, and the drying effect is good. And the collected gas is subjected to necessary pretreatment before being used in the next step. Meanwhile, the gas conveying pipe at the top is connected with the biogas compressor, gas in the gas collection treatment box is compressed, the volume energy density of the gas is improved, and convenience is provided for subsequent storage or utilization.

Description

Technical Field

[0001] The utility model relates to the technical field of biogas utilization, in particular to a comprehensive utilization mechanism for biogas and BOG in a farm. Background Technique

[0002] As an important part of agriculture, the problems of waste treatment and energy utilization in the breeding industry have become increasingly prominent. As two important renewable energy sources, the application of biogas and BOG in farms can not only effectively solve the problem of waste treatment, but also provide stable energy supply for farms, reduce energy costs and improve economic benefits. Therefore, the comprehensive utilization technology of biogas and BOG in farms has become a hot spot and key point of current research. At present, the comprehensive utilization technology of biogas and BOG has been applied in some farms. Although the comprehensive utilization of biogas and BOG can reduce the energy cost of farms, due to insufficient technical maturity and low raw material utilization rate, its economic benefits are not obvious. The direct utilization efficiency of low-pressure biogas is low, and the humidity in biogas is too high, affecting the use effect. Content of the Utility Model

[0003] The purpose of the utility model is to provide a comprehensive utilization mechanism for biogas and BOG in a farm, so as to solve the problems of low direct utilization efficiency of low-pressure biogas and too high humidity in biogas, which affect the use effect, as mentioned in the above background technique.

[0004] To achieve the above purpose, the utility model provides the following technical scheme:

[0005] A comprehensive utilization mechanism for biogas and BOG in a farm, including a collection hood installed on the top of the biogas and BOG pool in the farm. A gas collection and treatment box is installed on the top of the collection hood. A biogas compressor is externally connected to the gas collection and treatment box. A drying device is installed in the gas collection and treatment box;

[0006] The top of the gas collection and treatment box is connected with a gas transmission pipe and a corrugated pipe. The gas transmission pipe is connected to the intake pipe of the biogas compressor. Installation chutes are opened on the outer wall of the gas collection and treatment box;

[0007] The drying device includes a desiccant mesh cover that is adapted to the size of the installation chute and is inserted and matched. The desiccant mesh cover is filled with granular desiccants. A connection disk is installed at one end of the desiccant mesh cover.

[0008] Preferably, the height of the collection hood is 0.5 - 1.2 m, and a sealing ring seat is installed at the bottom edge of the collection hood.

[0009] Preferably, a filter screen is installed at the bottom inside the gas collection and treatment box, and the filter screen is arranged below the drying device.

[0010] Preferably, a control valve is installed on the pressurized outlet pipe of the biogas compressor.

[0011] Preferably, a sealing gasket is provided on the side of the connecting plate in contact with the gas collection and treatment tank, and the sealing gasket is made of silica gel material with a thickness of 3-5 mm.

[0012] Preferably, a number of connecting holes are installed on the edge of the connecting plate, which are evenly spaced and arranged in a ring shape. The connecting plate is connected to the outer wall of the gas collection and treatment tank through mounting screws passing through the connecting holes.

[0013] Preferably, the particle size of the granular desiccant in the desiccant mesh cover is larger than the aperture of the mesh holes of the desiccant mesh cover.

[0014] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0015] 1. In the biogas and BOG comprehensive utilization mechanism of this farm, through the provided collection hood, which is installed on the top of the biogas and BOG pool of the farm, it can effectively gather the mixture of biogas and BOG, ensure the collection efficiency of these gases, reduce leakage, and reduce the potential impact on the environment. The equipped gas collection and treatment tank not only serves as a gas transfer station but also has a built-in drying device, enabling the collected gas to be subjected to necessary pretreatment before entering the next step of utilization. At the same time, the gas pipe on its top is connected to the biogas compressor, which can efficiently transport biogas and BOG for further treatment or utilization. The introduced biogas compressor is connected to the gas pipe through the intake pipe to compress the gas in the gas collection and treatment tank, improving its volume energy density and facilitating subsequent storage or utilization. The desiccant mesh cover is inserted and matched with the gas collection and treatment tank through the installation chute, which is convenient for installation and replacement. The granular desiccant can effectively remove the moisture in the gas, ensure the dryness of biogas and BOG, and prevent equipment corrosion or efficiency reduction caused by moisture during subsequent utilization.

[0016] 2. In the biogas and BOG comprehensive utilization mechanism of this farm, a filter screen is installed at the bottom of the gas collection and treatment tank, and the filter screen is arranged below the drying device, which can effectively filter out impurities and particulate matter in the gas. The setting of the filter screen also improves the quality of subsequent gas treatment and provides a purer raw material for the further utilization of biogas and BOG.

[0017] 3. In the biogas and BOG comprehensive utilization mechanism of this farm, a number of connecting holes are installed on the edge of the connecting plate, which are evenly spaced and arranged in a ring shape. The connecting plate is connected to the outer wall of the gas collection and treatment tank through mounting screws passing through the connecting holes, which is convenient for users to replace and maintain the desiccant mesh cover. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The accompanying drawings are used to provide a further understanding of the present utility model and form a part of the specification. Together with the embodiments of the present utility model, they are further explained in detail, but do not constitute a limitation to the present utility model.

[0019] Figure 1 is a schematic structural diagram of the present utility model;

[0020] Figure 2 is a schematic structural diagram of the collection hood of the present utility model;

[0021] Figure 3 is a schematic sectional exploded structural diagram of the gas collection and treatment tank of the present utility model.

[0022] The meanings of the reference numerals in the figure are as follows:

[0023] 10. Collection hood; 11. Sealing ring seat;

[0024] 20. Gas collection and treatment tank; 21. Gas transmission pipe; 22. Bellows; 23. Filter screen; 24. Installation chute;

[0025] 30. Biogas compressor; 31. Intake pipe; 32. Boosted outlet pipe; 33. Control valve;

[0026] 40. Drying device; 41. Desiccant mesh cover; 42. Granular desiccant; 43. Connection plate; 44. Connection hole. Detailed implementation manners

[0027] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the embodiments of the present utility model and the drawings of the specification. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0028] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by the terms "center", "vertical", "horizontal", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation to the present utility model.

[0029] A comprehensive utilization mechanism for biogas and BOG in a farm, as Figures 1-3As shown in the figure, it includes a collection hood 10 installed on the top of the biogas and BOG pool in the farm. A gas collection and treatment box 20 is installed on the top of the collection hood 10. A biogas compressor 30 is externally connected to the gas collection and treatment box 20. A drying device 40 is installed in the gas collection and treatment box 20. A gas transmission pipe 21 and a corrugated pipe 22 are connected to the top of the gas collection and treatment box 20. The gas transmission pipe 21 is connected to the intake pipe 31 of the biogas compressor 30. An installation chute 24 is opened on the outer wall of the gas collection and treatment box 20. The drying device 40 includes a desiccant mesh cover 41 that is dimensionally adapted to the installation chute 24 and is inserted and matched therewith. The desiccant mesh cover 41 is filled with granular desiccants 42. A connection disk 43 is installed at one end of the desiccant mesh cover 41. By providing the collection hood 10, which is installed on the top of the biogas and BOG pool in the farm, it can effectively gather the mixture of biogas and BOG, ensure the collection efficiency of these gases, reduce leakage, and reduce the potential impact on the environment. The equipped gas collection and treatment box 20 not only serves as a gas transfer station but also has a built-in drying device 40, enabling the collected gas to be subjected to necessary pretreatment before entering the next step of utilization. At the same time, the gas transmission pipe 21 at its top is connected to the biogas compressor 30, enabling the efficient transmission of biogas and BOG for further treatment or utilization. The introduced biogas compressor 30 is connected to the gas transmission pipe 21 through the intake pipe 31 to compress the gas in the gas collection and treatment box 20, improving its volumetric energy density and facilitating subsequent storage or utilization. The desiccant mesh cover 41 is inserted and matched with the gas collection and treatment box 20 through the installation chute 24, facilitating installation and replacement. The granular desiccants 42 can effectively remove moisture in the gas, ensure the dryness of biogas and BOG, and prevent equipment corrosion or efficiency reduction caused by moisture during subsequent utilization.

[0030] Furthermore, the height of the collection hood 10 is 0.5 - 1.2 m, ensuring that biogas and BOG can be effectively and fully collected, avoiding the escape and waste of gas. A sealing ring seat 11 is installed at the bottom edge of the collection hood 10 to enhance the sealing between the collection hood 10 and the biogas and BOG pool.

[0031] Specifically, a filter screen 23 is installed at the bottom inside the gas collection and treatment box 20. The filter screen 23 is arranged below the drying device 40 and can effectively filter out impurities and particulate matters in the gas. The setting of the filter screen 23 also improves the quality of subsequent gas treatment and provides a purer raw material for the further utilization of biogas and BOG.

[0032] Among them, a control valve 33 is installed on the pressurized outlet pipe 32 of the biogas compressor 30, allowing users to adjust the output pressure and flow rate of biogas as needed to meet the requirements of different utilization scenarios.

[0033] It should be noted that a sealing gasket is provided on the side of the connecting plate 43 in contact with the gas collecting and treating box 20, and the sealing gasket is made of silica gel material with a thickness of 3-5 mm to ensure the sealing between the desiccant mesh cover 41 and the gas collecting and treating box 20.

[0034] In addition, a number of connecting holes 44 are evenly arranged at equal distances in a circular pattern on the edge of the connecting plate 43, and the connecting plate 43 is connected to the outer wall of the gas collecting and treating box 20 through mounting screws passing through the connecting holes 44, which facilitates the replacement and maintenance of the desiccant mesh cover 41 by the user.

[0035] It is worth noting that the particle size of the granular desiccant 42 in the desiccant mesh cover 41 is larger than the aperture of the mesh holes of the desiccant mesh cover 41, ensuring that the granular desiccant 42 will not leak out from the mesh holes during the drying process, guaranteeing the drying effect while also extending the service life of the desiccant.

[0036] The working principle of the biogas and BOG comprehensive utilization mechanism in this farm: First, a collecting hood 10 is installed on the top of the biogas and BOG pool in the farm. This collecting hood 10 can effectively gather the mixture of biogas and BOG, ensuring the collection efficiency of these gases, reducing leakage, and minimizing the potential impact on the environment. After the biogas and BOG mixture is collected through the collecting hood 10, it enters the gas collecting and treating box 20. The gas collecting and treating box 20 not only serves as a gas transfer station but also has a drying device 40 built-in to pre-treat the gas. The desiccant mesh cover 41 is filled with granular desiccant 42, and these granular desiccants 42 can effectively remove the moisture in the gas, ensuring the dryness of biogas and BOG and preventing equipment corrosion or efficiency reduction caused by moisture during subsequent utilization. The dried biogas and BOG are transmitted through the gas pipeline 21 at the top of the gas collecting and treating box 20. The gas pipeline 21 is connected to the intake pipe 31 of the biogas compressor 30 to ensure that the gas can enter the biogas compressor 30 efficiently and stably. The biogas compressor 30 receives the biogas and BOG from the gas pipeline 21 through the intake pipe 31 and compresses it. The volume energy density of the compressed gas increases, providing convenience for subsequent storage or utilization. As time goes by, the granular desiccant 42 in the desiccant mesh cover 41 will gradually become saturated and lose its drying effect. At this time, the desiccant mesh cover 41 can be easily taken out from the installation chute 24 by sliding it, and a new desiccant mesh cover 41 can be replaced to ensure the continuous and efficient operation of the entire system.

[0037] The above has shown and described the basic principles, main features and advantages of the present utility model. Those skilled in the art should understand that the present utility model is not limited by the above embodiments. The above embodiments and the descriptions in the specification are only preferred examples of the present utility model and are not used to limit the present utility model. Without departing from the spirit and scope of the present utility model, the present utility model will have various changes and improvements, and these changes and improvements all fall within the scope of the present utility model claimed. The scope of protection claimed by the present utility model is defined by the appended claims and their equivalents.

Claims

1. A comprehensive utilization mechanism of biogas and BOG in a farm, characterized by: It comprises a collecting hood (10) installed on the top of a biogas and BOG pool in a breeding farm, a gas collecting and processing box (20) is installed on the top of the collecting hood (10), a biogas compressor (30) is externally connected to the gas collecting and processing box (20), and a drying device (40) is installed in the gas collecting and processing box (20); The top of the gas collection and processing box (20) is connected to a gas delivery pipe (21) and a bellows (22), the gas delivery pipe (21) is connected to an air intake pipe (31) of the biogas compressor (30), and an installation slide groove (24) is provided on the outer wall of the gas collection and processing box (20); The drying device (40) comprises a desiccant mesh cover (41) which is adapted to the size of the installation slide groove (24) and is plugged in and matched with the installation slide groove (24). The desiccant mesh cover (41) is filled with granular desiccant (42). A connecting plate (43) is installed at one end of the desiccant mesh cover (41).

2. The comprehensive utilization mechanism of biogas and BOG from farms according to claim 1, characterized in that: The height of the collecting hood (10) is 0.5-1.2 m, and a sealing ring seat (11) is installed on the bottom edge of the collecting hood (10).

3. The comprehensive utilization mechanism of biogas and BOG from farms according to claim 1, characterized in that: A filter screen (23) is installed at the bottom of the gas collection and processing box (20), and the filter screen (23) is arranged below the drying device (40).

4. The comprehensive utilization mechanism of biogas and BOG from farms according to claim 1, characterized in that: A control valve (33) is installed on the booster outlet pipe (32) of the biogas compressor (30).

5. The comprehensive utilization mechanism of biogas and BOG from farms according to claim 1, characterized in that: A sealing gasket is provided on the side of the connection plate (43) that contacts the gas collection and processing box (20), and the sealing gasket is made of silicone material and has a thickness of 3-5 mm.

6. The comprehensive utilization mechanism of biogas and BOG from farms according to claim 1, characterized in that: The edge of the connection plate (43) is provided with a plurality of connection holes (44) arranged evenly and equidistantly in a ring shape, and the connection plate (43) is connected to the outer wall of the gas collection and processing box (20) by means of mounting screws passing through the connection holes (44).

7. The comprehensive utilization mechanism of biogas and BOG from farms according to claim 1, characterized in that: The particle size of the granular desiccant (42) in the desiccant mesh cover (41) is larger than the aperture of the mesh of the desiccant mesh cover (41).

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