A biogas slurry irrigation sprinkler and irrigation assembly

Abstract

The present application relates to the field of agricultural appliances, in particular to a nozzle for biogas slurry irrigation and an irrigation assembly, the nozzle for biogas slurry irrigation comprises a nozzle body and a connecting pipe device, the connecting pipe device is arranged on one end of the nozzle body, the connecting pipe device is used for connecting an irrigation pipeline, the nozzle body is internally provided with a first water channel and a second water channel, the biogas slurry after pressure treatment is sprayed into the air through the first water channel, the second water channel is communicated with the first water channel, and the second water channel is used for conveying clean water into the first water channel. The nozzle for biogas slurry irrigation of the present application is provided with the second water channel communicated with the first water channel, the second water channel is used for conveying clean water into the first water channel, the concentration of the biogas slurry can be diluted when passing through the first water channel, and the risk of nozzle blockage in the process of sprinkling irrigation is reduced. In addition, in the embodiment, the second water channel is arranged to adjust the concentration of the biogas slurry in the process of sprinkling irrigation, the continuity of the irrigation work is ensured, and the efficiency of the sprinkling irrigation work is improved.

Description

Technical Field

[0001] This invention relates to the field of agricultural implements, and in particular to a spray nozzle and irrigation assembly for biogas slurry irrigation. Background Technology

[0002] Biogas slurry is a high-concentration organic wastewater produced from the anaerobic fermentation of livestock and poultry manure and other organic matter. It is a high-quality organic fertilizer resource, containing not only nutrients such as nitrogen, phosphorus, and potassium, but also abundant organic matter, humic acid, amino acids, growth hormones, and various trace elements. Furthermore, the long-term anaerobic fermentation environment of biogas slurry suffocates and kills a large number of pathogens, insect eggs, and weed seeds. In agricultural production, the rational use of biogas slurry can improve the yield and quality of agricultural products, improve soil physical and chemical properties, enhance soil fertility, reduce the use of chemical fertilizers, and lower production costs.

[0003] Currently, sprinkler irrigation is the most common method for applying biogas slurry. The principle is to use a water pump to pressurize the biogas slurry, and then use a pipeline system and sprinklers to spray the pressurized slurry into the air, breaking it down into fine droplets that fall onto plants and the ground. This method offers advantages such as rapid fertilization, even application, and labor savings.

[0004] However, biogas slurry contains a large amount of suspended particulate matter, colloids and other impurities, which can easily clog the sprinkler heads during sprinkler irrigation, affecting the continuity of sprinkler irrigation.

[0005] Therefore, when applying biogas slurry using sprinkler irrigation, how to prevent the nozzles from being clogged by impurities in the biogas slurry is a technical problem that urgently needs to be solved in the existing technology. Summary of the Invention

[0006] The purpose of this invention is to address the problem in the existing technology that biogas slurry contains a large amount of suspended particulate matter, colloids and other impurities, which easily clog the sprinkler head during sprinkler irrigation and affect the continuity of sprinkler irrigation work, by providing a sprinkler head and irrigation components for biogas slurry irrigation.

[0007] To achieve the above objectives, the technical solution adopted by the present invention is as follows:

[0008] A biogas slurry irrigation nozzle includes a nozzle body and a connecting pipe device. The connecting pipe device is disposed at one end of the nozzle body and is used to connect to an irrigation pipe. The nozzle body has a first water channel and a second water channel inside. The pressurized biogas slurry is sprayed into the air through the first water channel. The second water channel is connected to the first water channel and is used to transport clean water into the first water channel.

[0009] Preferably, with any diameter of the first waterway as the dividing line, the outlet of the second waterway is arranged around one side of the inner wall of the first waterway, and the central axis of the outlet of the second waterway is parallel to the central axis of the first waterway, and the flow rate of the clean water transported by the second waterway is greater than the flow rate of the biogas slurry transported by the first waterway.

[0010] Preferably, the outlet of the second water channel is flush with the inlet of the first water channel.

[0011] Preferably, the edge of the outlet of the second water channel is separated from the edge of the inner wall of the first water channel.

[0012] Preferably, the cross-sectional shape of the outlet of the second waterway is set to be circular.

[0013] Preferably, the outlet of the second water channel is provided in multiple configurations surrounding the inner wall of the first water channel.

[0014] Preferably, the nozzle body is further provided with an air channel inside, the cross-sectional shape of the air channel is set to an annular shape, and the air channel surrounds the first water channel, and the air outlet of the air channel and the liquid outlet of the first water channel are located on the same plane.

[0015] Preferably, the central axis of the air outlet of the air channel intersects the central axis of the liquid outlet of the first water channel.

[0016] Preferably, a gas distributor is provided inside the airflow channel.

[0017] Preferably, the air outlet of the airflow channel is configured as a constricted structure.

[0018] A biogas slurry irrigation assembly includes a biogas slurry tank, a clean water tank, a biogas slurry pipeline, a clean water pipeline, a first water pump, a second water pump, and the aforementioned nozzles. The first water pump is located at the outlet of the biogas slurry tank. One end of the biogas slurry pipeline is connected to the first water pump, and the other end is connected to a first water channel provided inside the nozzle. The second water pump is located at the outlet of the clean water tank. One end of the clean water pipeline is connected to the second water pump, and the other end is connected to a second water channel provided inside the nozzle.

[0019] In summary, due to the adoption of the above technical solution, the beneficial effects of the present invention are:

[0020] 1. The present invention provides a sprinkler head for biogas slurry irrigation, wherein a second water channel is connected to a first water channel. The second water channel is used to transport clean water into the first water channel, and the biogas slurry is diluted in concentration when passing through the first water channel, thereby reducing the risk of sprinkler head clogging during irrigation. Furthermore, in this embodiment, the second water channel also allows for adjustment of the biogas slurry concentration during irrigation, ensuring the continuity of irrigation and improving the efficiency of irrigation.

[0021] 2. The biogas slurry irrigation nozzle of the present invention uses any diameter of the first waterway as a dividing line, and sets the outlet of the second waterway around one side of the inner wall of the first waterway, with the central axis of the outlet of the second waterway parallel to the central axis of the first waterway, and sets the flow velocity of the clean water transported by the second waterway to be greater than the flow velocity of the biogas slurry transported by the first waterway. Thus, when the biogas slurry passes through the first waterway, the flow velocity on the side corresponding to the outlet of the second waterway is accelerated, resulting in lower pressure on that side. Plant fibers entering the first waterway in a "lateral" state are guided at one end to tilt towards the side with a faster biogas slurry flow rate under the influence of the velocity and pressure differences, and the plant fibers as a whole gradually lean towards the side with a faster biogas slurry flow rate. Therefore, the plant fibers entering the first waterway in a "lateral" state can be adjusted to pass through the first waterway in a relatively "vertical" state, further reducing the risk of nozzle clogging during sprinkler irrigation.

[0022] 3. The biogas slurry irrigation nozzle of the present invention is configured such that the edge of the outlet of the second water channel is separated from the edge of the inner wall of the first water channel. This prevents the clean water jet sprayed from the outlet of the second water channel from contacting the inner wall of the first water channel, thereby reducing the loss of clean water jet velocity and ensuring that a sufficiently large velocity difference can be formed on both sides of the first water channel. This allows plant fibers entering the first water channel in a "lateral" state to be adjusted to a "vertical" state more quickly, further reducing the risk of nozzle clogging during sprinkler irrigation. Furthermore, with this structural design, the biogas slurry accelerated by the clean water jet can be closer to the central axis of the first water channel. Consequently, the ends of plant fibers entering the first water channel in a "lateral" state have a greater probability of contacting the area with a faster biogas slurry flow velocity, thus improving the efficiency and success rate of adjusting the state of the plant fibers to a certain extent. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the first cross-sectional structure of a biogas slurry irrigation nozzle;

[0024] Figure 2 yes Figure 1 A schematic diagram of the structure of A in the middle;

[0025] Figure 3This is a schematic diagram of the second cross-sectional structure of a biogas slurry irrigation nozzle;

[0026] Figure 4 This is a schematic diagram of a biogas slurry irrigation component.

[0027] The markings in the diagram are: 1-nozzle body, 2-connection device, 3-first water channel, 4-second water channel, 5-air flow channel, 6-gas distributor, 7-biogas slurry tank, 8-clean water tank, 9-biogas slurry pipe, 10-clean water pipe, 11-first water pump, 12-second water pump, 14-first extension pipe, 15-second extension pipe. Detailed Implementation

[0028] The present invention will now be described in detail with reference to the accompanying drawings.

[0029] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the invention.

[0030] Example 1

[0031] like Figures 1 to 3 As shown, the present invention provides a biogas slurry irrigation nozzle, comprising a nozzle body 1 and a connecting pipe device 2. The connecting pipe device 2 is disposed at one end of the nozzle body 1 and is used to connect to an irrigation pipe. The nozzle body 1 has a first water channel 3 and a second water channel 4 inside. The pressurized biogas slurry is sprayed into the air through the first water channel 3. The second water channel 4 is connected to the first water channel 3 and is used to transport clean water into the first water channel 3.

[0032] The present invention employs a biogas slurry irrigation nozzle, wherein a second water channel 4 is connected to a first water channel 3. The second water channel 4 is used to transport clean water into the first water channel 3. The biogas slurry is diluted in concentration as it passes through the first water channel 3, thereby reducing the risk of nozzle clogging during irrigation. Furthermore, in this embodiment, the second water channel 4 also allows for adjustment of the biogas slurry concentration during irrigation, ensuring the continuity of irrigation and improving the efficiency of irrigation.

[0033] Specifically, in this embodiment, the connecting pipe device 2 includes a first extension pipe 14, a second extension pipe 15, and a threaded sleeve. The first extension pipe 14 is connected to the inlet of the first waterway 3, and the second extension pipe 15 is connected to the inlet of the second waterway 4. The threaded sleeve is disposed at the ends of the first extension pipe 14 and the second extension pipe 15, and is used to connect the biogas slurry irrigation pipe and the clean water irrigation pipe. In this embodiment, a liquid control device is provided on the second extension pipe 15. The liquid control device is used to adjust the flow rate of clean water flowing into the first waterway 3 per unit time, thereby realizing real-time adjustment of the biogas slurry concentration during irrigation, improving the continuity of irrigation construction, and improving the convenience of the invention in practical use. In this embodiment, the nozzle is made entirely of pure copper material, and a galvanized layer is provided on its surface.

[0034] As a preferred embodiment, based on the above method, further, taking any diameter of the first waterway 3 as the dividing line, the outlet of the second waterway 4 is arranged around one side of the inner wall of the first waterway 3, and the central axis of the outlet of the second waterway 4 is parallel to the central axis of the first waterway 3. The flow rate of the clean water transported by the second waterway 4 is greater than the flow rate of the biogas slurry transported by the first waterway 3.

[0035] This embodiment focuses on biogas slurry formed from the fermentation of livestock manure. This type of biogas slurry contains a large amount of fine, long, fibrous plant fibers. When the biogas slurry passes through the first waterway 3, these plant fibers easily become stuck and cause blockages. Therefore, in this embodiment, using any diameter of the first waterway 3 as a boundary line, the outlet of the second waterway 4 is positioned around one side of the inner wall of the first waterway 3, with the central axis of the outlet of the second waterway 4 parallel to the central axis of the first waterway 3. Furthermore, the flow rate of the clean water transported by the second waterway 4 is set to be greater than the flow rate of the biogas slurry transported by the first waterway 3. Thus, when the biogas slurry passes through the first waterway 3, the flow rate on the side corresponding to the outlet of the second waterway 4 is accelerated, resulting in lower pressure on that side. Plant fibers entering the first waterway 3 in a "horizontal" state will be guided at one end to tilt towards the side with a faster biogas slurry flow rate under the influence of flow velocity and pressure differences. The plant fibers as a whole will also gradually lean towards the side with a faster biogas slurry flow rate. Thus, the plant fibers entering the first waterway 3 in a "horizontal" state can be adjusted to pass through the first waterway 3 in a relatively "vertical" state, further reducing the risk of nozzle clogging during sprinkler irrigation.

[0036] As a preferred embodiment, based on the above method, the outlet of the second waterway 4 is set flush with the inlet of the first waterway 3.

[0037] This structural design does not alter the internal structure of the first waterway 3, thus ensuring the stability of the generated biogas slurry jet parameters. Furthermore, the outlet of the second waterway 4 does not occupy the internal space of the first waterway 3, preventing impurities from accumulating on the back side of the outlet of the second waterway 4 as the biogas slurry passes through the first waterway 3, thereby further reducing the risk of nozzle clogging during sprinkler irrigation. Specifically, by aligning the outlet of the second waterway 4 with the inlet of the first waterway 3, a velocity and pressure difference is generated on both sides of the biogas slurry upon entry into the first waterway 3. This allows plant fibers entering the first waterway 3 in a "lateral" state to be more quickly adjusted to a "vertical" state, further reducing the risk of nozzle clogging during sprinkler irrigation. Specifically, in this embodiment, clean water is first introduced into the first waterway 3 via the second waterway 4, and then biogas slurry is introduced into the first waterway 3 via the irrigation pipe.

[0038] As a preferred embodiment, based on the above method, the edge of the liquid outlet of the second waterway 4 is further separated from the inner wall edge of the first waterway 3.

[0039] In this embodiment, the edge of the outlet of the second water channel 4 is separated from the inner wall edge of the first water channel 3. This prevents the clean water jet sprayed from the outlet of the second water channel 4 from contacting the inner wall of the first water channel 3, thereby reducing the loss of clean water jet velocity. This ensures that a sufficiently large velocity difference can be formed on both sides of the first water channel 3, allowing plant fibers entering the first water channel 3 in a "lateral" state to be adjusted to a "vertical" state more quickly, further reducing the risk of nozzle clogging during sprinkler irrigation. Furthermore, with this structural design, the biogas slurry accelerated by the clean water jet can be closer to the central axis of the first water channel 3. Consequently, the ends of plant fibers entering the first water channel 3 in a "lateral" state have a greater probability of contacting the area with a faster biogas slurry flow velocity, improving the efficiency and success rate of adjusting the state of the plant fibers to a certain extent.

[0040] As a preferred embodiment, based on the above method, the cross-sectional shape of the outlet of the second water channel 4 is further set to circular. With this structural arrangement, the clear water jet ejected from the outlet of the second water channel 4 can form an approximately circular cross-sectional shape. When the clear water jet comes into contact with the inner wall of the first water channel 3, a line contact can be formed, thereby reducing the loss of flow velocity of the clear water jet in the first water channel 3.

[0041] As a preferred embodiment, based on the above method, the outlet of the second waterway 4 is further configured as multiple outlets surrounding the inner wall of the first waterway 3. This structural arrangement reduces the cross-sectional area of ​​the outlet of the second waterway 4, allowing the clear water jet to generate a higher flow velocity. Consequently, the flow velocity of the biogas slurry on one side corresponding to the outlet of the second waterway 4 can be better increased, and a larger velocity difference can be formed on both sides of the first waterway 3. This further accelerates the adjustment of plant fibers from a "horizontal" to a "vertical" state, thereby further reducing the risk of nozzle clogging during sprinkler irrigation.

[0042] Example 2

[0043] like Figures 1 to 3 As shown, the biogas slurry irrigation nozzle of the present invention, based on the above-mentioned method, further includes an air channel 5 inside the nozzle body 1. The cross-sectional shape of the air channel 5 is set as an annular shape, and the air channel 5 is arranged around the first water channel 3. The air outlet of the air channel 5 and the liquid outlet of the first water channel 3 are arranged on the same plane.

[0044] In this embodiment, an air channel 5 is also provided inside the nozzle body 1. During irrigation, high-pressure gas is introduced into the air channel 5. The high-pressure gas ejected from the air channel 5 mixes with the biogas slurry jet ejected from the first water channel 3 outside the nozzle body 1. During this process, the high-pressure gas cuts and breaks down the biogas slurry, causing it to decompose into finer droplets, thereby improving the quality of biogas slurry irrigation. Specifically, in this embodiment, an air compressor is used to increase the high-pressure gas.

[0045] As a preferred embodiment, based on the above method, the central axis of the air outlet of the air channel 5 intersects with the central axis of the liquid outlet of the first water channel 3. With this structural arrangement, the high-pressure gas ejected from the air channel 5 can mix more thoroughly with the biogas slurry, cutting and breaking it into finer droplets, further improving the quality of biogas slurry irrigation. Furthermore, with this structural arrangement, the high-pressure airflow jet ejected from the air channel 5 can be closer to the liquid outlet of the first water channel 3. Impurities in the biogas slurry passing through the liquid outlet of the first water channel 3 can be better accelerated by the high-pressure airflow jet, increasing their speed of passage through the liquid outlet. Alternatively, the high-pressure airflow jet can apply force to assist impurities in the biogas slurry in passing through the liquid outlet of the first water channel 3, thereby further reducing the risk of nozzle clogging during irrigation.

[0046] As a preferred embodiment, based on the above method, a gas distributor 6 is further provided inside the airflow channel 5. In this embodiment, the gas distributor 6 enables a more uniform distribution of high-pressure air across the cross-section of the airflow channel 5, thereby improving the quality of the ejected high-pressure airflow jet.

[0047] As a preferred embodiment, based on the above method, the air outlet of the air channel 5 is further configured as a constricted structure. This structural design increases the velocity of the ejected high-pressure air jet, resulting in better cutting and breaking of the biogas slurry by the high-pressure air jet, thus further improving the quality of biogas slurry irrigation.

[0048] Example 3

[0049] like Figures 1 to 4 As shown, the biogas slurry irrigation component of the present invention includes a biogas slurry tank 7, a clean water tank 8, a biogas slurry pipe 9, a clean water pipe 10, a first water pump 11, a second water pump 12, and the aforementioned nozzle. The first water pump 11 is located at the outlet of the biogas slurry tank 7. One end of the biogas slurry pipe 9 is connected to the first water pump 11, and the other end is connected to the first water channel 3 provided in the nozzle. The second water pump 12 is located at the outlet of the clean water tank 8. One end of the clean water pipe 10 is connected to the second water pump 12, and the other end is connected to the second water channel 4 provided in the nozzle.

[0050] Specifically, during sprinkler irrigation, the second water pump 12 is first started to introduce clean water into the first water channel 3 inside the sprinkler head, and then the first water pump 11 is started to introduce biogas slurry into the first water channel 3 inside the sprinkler head. When sprinkler irrigation ends, the first water pump 11 is first turned off, and the second water pump 12 continues to work for a period of time to carry out the biogas slurry remaining in the first water channel 3 with clean water, and then the second water pump 12 is turned off.

[0051] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A sprinkler head for biogas slurry irrigation, characterized in that, The device includes a nozzle body and a connecting pipe device. The connecting pipe device is located at one end of the nozzle body and is used to connect to an irrigation pipe. The nozzle body has a first water channel and a second water channel inside. The pressurized biogas slurry is sprayed into the air through the first water channel. The second water channel is connected to the first water channel and is used to transport clean water into the first water channel. Using any diameter of the first waterway as a dividing line, the outlet of the second waterway is arranged around one side of the inner wall of the first waterway, and the central axis of the outlet of the second waterway is parallel to the central axis of the first waterway. The flow rate of the clean water transported by the second waterway is greater than the flow rate of the biogas slurry transported by the first waterway.

2. The biogas slurry irrigation nozzle according to claim 1, characterized in that, The outlet of the second water channel is flush with the inlet of the first water channel.

3. The biogas slurry irrigation nozzle according to claim 2, characterized in that, The edge of the outlet of the second water channel is separated from the edge of the inner wall of the first water channel.

4. The biogas slurry irrigation nozzle according to claim 3, characterized in that, The outlet of the second water channel has a circular cross-sectional shape; the outlet of the second water channel is arranged in multiple ways around the inner wall of the first water channel.

5. The sprinkler head for biogas slurry irrigation according to claim 1, characterized in that, The nozzle body is also provided with an air channel inside. The cross-sectional shape of the air channel is set as an annular shape, and the air channel surrounds the first water channel. The air outlet of the air channel and the liquid outlet of the first water channel are located on the same plane.

6. The sprinkler head for biogas slurry irrigation according to claim 5, characterized in that, The central axis of the air outlet of the air channel intersects with the central axis of the liquid outlet of the first water channel.

7. The biogas slurry irrigation nozzle according to claim 6, characterized in that, A gas distributor is installed inside the airflow channel.

8. The biogas slurry irrigation nozzle according to claim 6, characterized in that, The air outlet of the airflow channel is designed with a constricted opening.

9. A biogas slurry irrigation component, characterized in that, The sprinkler head for irrigation with biogas slurry as described in any one of claims 1-8 further includes a biogas slurry tank, a clean water tank, a biogas slurry pipeline, a clean water pipeline, a first water pump, and a second water pump. The first water pump is disposed at the outlet of the biogas slurry tank. One end of the biogas slurry pipeline is connected to the first water pump, and the other end is connected to the first water channel disposed inside the sprinkler head. The second water pump is disposed at the outlet of the clean water tank. One end of the clean water pipeline is connected to the second water pump, and the other end is connected to the second water channel disposed inside the sprinkler head.

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