Field biogas slurry irrigation system

Abstract

The utility model discloses a field biogas slurry irrigation system which comprises a biogas slurry pool. The liquid discharge pipe group comprises a main pipe and at least one branch pipe connected to the main pipe, the main pipe is communicated with the bottom of the biogas slurry tank, and the at least one branch pipe is connected to the main pipe; the elastic guide pipe is connected to the inner side end, extending into the biogas slurry tank, of the main pipe; one end of the first pull wire is connected to the free end of the elastic guide pipe, and the other end of the first pull wire penetrates out of the biogas slurry tank from the upper part of the biogas slurry tank and then pulls the elastic guide pipe, so that the free end of the elastic guide pipe is higher than the liquid level of biogas slurry in the biogas slurry tank. According to the scheme, the elastic guide pipe is arranged in the biogas slurry tank, and the free end of the elastic guide pipe can be pulled up to be higher than the liquid level of the biogas slurry, so that the biogas slurry discharge is conveniently controlled under the condition that a valve is not arranged in a discharge pipeline, and the problem of biogas slurry leakage caused by much corrosion of the valve by the biogas slurry is avoided.

Description

Technical Field

[0001] The utility model relates to a biogas slurry irrigation system, in particular to a field biogas slurry irrigation system. Background Art

[0002] At present, large-scale farms generally directly store the biogas slurry produced after anaerobic fermentation of livestock and poultry manure in the biogas slurry storage tank of the farm. When the planting base needs to apply biogas slurry, the biogas slurry can be directly pumped from the biogas slurry storage tank to the farmland and forest land through a water pump and pipeline in the farm. However, in reality, there are often different planting subjects and different fertilizer application requirements in different planting plots. If the communication between the farm and the planting subject is not in place, misapplication of biogas slurry may occur, and even environmental pollution may occur. Therefore, it is necessary to optimize the biogas slurry irrigation system so that farmers can apply biogas slurry as needed in the field. At the same time, it can also break up the whole into parts, reduce the storage volume of biogas slurry in the biogas slurry storage tank in the farm, thereby reducing the odor emission and alleviating the problem of difficult storage of a large amount of sewage generated in a short time due to special reasons such as rainfall.

[0003] However, there are also certain problems with the above biogas slurry treatment method. The most important problem is that after the valve controlling the discharge of the biogas slurry tank is corroded by biogas slurry for a long time, the sealing performance is likely to decrease, posing a hidden danger to the safe use of the biogas slurry tank. Summary of the Utility Model

[0004] The purpose of the utility model is to provide a field biogas slurry irrigation system to solve some technical problems existing in the existing centralized storage of biogas slurry.

[0005] To achieve the above purpose, the utility model provides the following technical solutions:

[0006] A field biogas slurry irrigation system includes

[0007] A biogas slurry tank;

[0008] A liquid discharge pipe group, including a main pipe and at least one branch pipe connected to the main pipe. The main pipe is communicated with the bottom of the biogas slurry tank, and the at least one branch pipe is connected to the main pipe;

[0009] An elastic catheter, connected to the inner end of the main pipe extending into the biogas slurry tank;

[0010] A first traction wire, one end of which is connected to the free end of the elastic catheter, and the other end passes through the upper part of the biogas slurry tank after passing through the biogas slurry tank to pull the elastic catheter, so that the free end of the elastic catheter is higher than the liquid level of the biogas slurry in the biogas slurry tank.

[0011] Preferably, a maintenance opening is provided at the top of the biogas slurry tank, and a maintenance door is hermetically covered on the maintenance opening.

[0012] Preferably, a liquid level gauge communicating with the biogas slurry pond is provided on the side of the biogas slurry pond.

[0013] Preferably, a silt cleaning port is further provided at the bottom of the biogas slurry pond, and a first valve is provided on the silt cleaning port.

[0014] Preferably, a photovoltaic power supply device is provided at the upper part of the biogas slurry pond, a blower electrically connected to the photovoltaic power supply device is further provided at the top of the biogas slurry pond, an air distribution pipe is laid at the top of the biogas slurry pond, and the blower is communicated with the air distribution pipe.

[0015] Preferably, a number of elastic fillers are evenly hung in the biogas slurry pond.

[0016] Preferably, an ORP sensor / DO sensor is further provided in the biogas slurry pond, and the ORP sensor / DO sensor is electrically connected to the blower respectively.

[0017] Preferably, a winch is further provided at the top of the biogas slurry pond, a second towing line is wound on the winch, and one end of the second towing line is connected to the free end of the elastic conduit.

[0018] Preferably, a second valve is provided on the branch discharge pipe, and the second valve is electrically connected to the photovoltaic power supply device.

[0019] Preferably, a third valve is provided on the main pipe, and the third valve is electrically connected to the photovoltaic power supply device.

[0020] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0021] 1. In this solution, an elastic conduit is arranged in the biogas slurry pond, and the free end can be lifted to a height higher than the liquid level of the biogas slurry. Without a valve in the discharge pipeline, the convenient control of discharging the biogas slurry is realized, thus avoiding the problem of biogas slurry leakage caused by the long-term corrosion of the valve by the biogas slurry.

[0022] 2. An inspection port is provided to facilitate the subsequent maintenance of the biogas slurry pond, a liquid level gauge is provided to facilitate understanding the usage situation of the biogas slurry inside the biogas slurry pond, and a silt cleaning port is provided to facilitate timely cleaning and discharging of the sediment deposited in the biogas slurry pond.

[0023] 3. An aeration mechanism is provided to reduce the generation of biogas.

[0024] 4. A winch is provided to enable the automatic pulling and lifting of the free end of the elastic conduit.

[0025] 5. Electric second valves and third valves are provided to further realize the refined management of biogas slurry discharge and prevent the uncontrolled discharge of biogas slurry when the free end of the elastic conduit falls into the biogas slurry pond. Description of the Drawings

[0026] Figure 1 is a schematic top view of the structure of the present utility model;

[0027] Figure 2 is a cross-sectional view of the present utility model taken along the A-A direction;

[0028] Figure 3 is a cross-sectional view of the present utility model taken along the B-B direction;

[0029] Figure 4 is a distribution diagram of the aeration pipe and the elastic filler in the present utility model.

[0030] Reference numerals: 1. biogas slurry tank, 101. inspection opening, 102. silt cleaning opening, 2. liquid discharge pipe group, 201. main pipe, 202. branch pipe, 3. elastic conduit, 4. first towing wire, 5. inspection door, 6. liquid level gauge, 7. first valve, 8. photovoltaic power supply equipment, 9. blower, 10. aeration pipe, 11. elastic filler, 12. ORP sensor / DO sensor, 13. winch, 14. second towing wire, 15. second valve, 16. third valve. Specific embodiments

[0031] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are some but not all of the embodiments of the present utility model. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0032] In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", 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 should not be construed as a limitation of the present utility model. In addition, the terms "first", "second", "third" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance.

[0033] In the description of the present utility model, it should be noted that unless otherwise clearly defined and limited, the terms "installed", "connected", "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.

[0034] This solution is mainly used to solve the problems existing in the existing large-scale biogas slurry storage devices, namely, the inability to flexibly adjust according to the fertilization requirements of different types of plants, and the leakage caused by the easy corrosion of the valves during the use of the biogas slurry pool.

[0035] Specifically, this solution includes a biogas slurry pool 1 placed in the field. To avoid volatilization, the biogas slurry pool is in a tank-like structure, and a liquid inlet is provided on the biogas slurry pool to facilitate the introduction of external biogas slurry into the biogas slurry pool 1.

[0036] At the same time, a set of drain pipe groups 2 is connected to the biogas slurry pool 1 to lead the biogas slurry to the field where fertilization is required through this drain pipe group when biogas slurry irrigation is needed. Specifically, the drain pipe group 2 includes a main pipe 201 and at least one branch pipe 202. Among them, one end of the main pipe is connected to the bottom of the biogas slurry pool and is in communication with the biogas slurry pool, while the branch pipes are connected to the main pipe in parallel to enable simultaneous and multi-channel irrigation of biogas slurry to the field.

[0037] However, it should be noted that in the above solution, if the liquid inlet control of the drain pipe group is not implemented, the biogas slurry in the biogas slurry pool will continuously flow out due to gravity. Therefore, in this solution, an elastic conduit 3 is also provided. Specifically, one end of the elastic conduit is connected to the main pipe 201, and the other free end that can freely lift is arranged in the biogas slurry pool in a manner that can be lifted through a first traction rope 4. In detail, one end of the first traction line 4 is connected to the free end of the elastic conduit, and the other end passes through the upper part of the biogas slurry pool and is tightly fixed to an external wire pile after exiting the biogas slurry pool. At this time, the first traction line pulls the free end of the elastic conduit to a position higher than the biogas slurry liquid level to ensure that the biogas slurry will not be discharged into the drain pipe group 2 through the elastic conduit at this time. It should also be noted that when biogas slurry irrigation is required, just loosen the first traction line wound around the wire pile and slowly release it so that the free end of the elastic conduit sinks into the biogas slurry. At this time, the biogas slurry can enter the drain pipe group 2 from the biogas slurry pool and be discharged to the plants that need to be irrigated through the drain pipe group.

[0038] It should be noted that after long-term use of the biogas slurry pool, problems such as aging and leakage are inevitable. At this time, it is necessary to drain the biogas slurry in the biogas slurry pool and enter it for maintenance. To facilitate maintenance personnel to enter the interior of the biogas slurry pool, such as Figure 2As shown, at least one inspection port 101 is provided on the top of the biogas tank. This inspection port is suitable for at least one person to pass through, so that maintenance personnel can enter through this inspection port. It should be noted that after the biogas enters the biogas tank, it will still ferment and produce biogas. In this case, the inspection port can also be used as an exhaust port to prevent the gas pressure in the biogas tank from being too high and causing the tank to explode. It should be noted that in order to prevent the rapid volatilization of the biogas, an inspection door 5 is provided on the inspection port cover. There are exhaust holes on the inspection door to take into account both exhaust and prevention of rapid volatilization of the biogas.

[0039] In addition, in order to facilitate the understanding of the amount of biogas in the biogas tank and the use of biogas during irrigation, a liquid level gauge 6 is installed on the side of the biogas tank 1. The liquid level gauge is a glass tube connected to the biogas tank so that the liquid level in the glass tube is kept at the same height as the liquid level in the biogas tank.

[0040] It should be noted that after prolonged use, some impurities will inevitably settle in the biogas tank 1. To prevent the continued accumulation of impurities in the biogas tank 1, a desilting port 102 is provided at the bottom of the biogas tank 1. A first valve 7 is installed on the desilting port to control its opening and closing. The first valve is opened to discharge the silt settled in the biogas tank 1 through the desilting port.

[0041] It should be noted that biogas will continue to be produced due to insufficient degradation (according to research, the biogas production of biogas continues to increase in the first 12 days, and reaches a peak value on the 12th day; after that, the production of biogas gradually decreases). The greenhouse effect of biogas is 21 times that of carbon dioxide, and the emission of biogas will cause greenhouse gas pollution. Moreover, biogas is a flammable and explosive gas. When biogas accumulates, it is easy to form safety hazards such as fire (explosion), which will affect agricultural production safety. Therefore, the field biogas irrigation system must try to prevent the production of biogas. Figure 1 、 Figure 3 As shown, an aeration mechanism is also provided on the biogas tank 1. Specifically, a photovoltaic power supply device 8 capable of generating electricity and storing this electricity through solar energy is installed on the top of the biogas tank 1. A blower 9 is also installed on the top of the biogas tank. The blower is electrically connected to the photovoltaic power supply device to ensure the supply of electricity. At the same time, a number of aeration pipes 10 are laid at the bottom of the biogas tank. The aeration pipes are provided with air holes and are connected to the air outlet of the blower. The blower blows air into the aeration pipes, thereby aerating the biogas in the biogas tank and reducing its continued fermentation and the amount of biogas produced.

[0042] It should be noted that, based on the above embodiment, a plurality of strings of elastic fillers 11 may be evenly hung in the biogas slurry pool to enhance the aeration effect.

[0043] In addition, during the specific aeration process, it is also necessary to flexibly adjust according to the specific situation of the biogas slurry. Therefore, on the above basis, an ORP sensor / DO sensor 12 can also be installed in the biogas slurry tank 1 to monitor the properties of the biogas slurry in real time. It should be noted that the ORP sensor / DO sensor 12 is electrically connected to the blower 9. When the ORP sensor / DO sensor detects that the biogas slurry data is lower than its preset threshold, it can drive the blower to rotate automatically to implement aeration.

[0044] It should be noted that in this solution, the lifting control of the free end of the elastic conduit 3 can also be automated when there is a photovoltaic power supply device 8. Specifically, as Figure 2 shown, a winch 13 is installed on the top of the biogas slurry tank 1, and a second traction line 14 is wound around the output shaft of the winch. At the same time, one end of the second traction line passes through the biogas slurry tank and is connected to the free end of the elastic conduit 3. Then, when it is necessary to raise the free end of the elastic conduit, only need to drive the winch to wind, and when it is necessary to lower the free end of the elastic conduit, only need to reverse the winch.

[0045] It should be noted that in this solution, if there are multiple branch pipes, when irrigation is carried out, it is necessary to tie and seal the unused branch pipes with ropes, which is very inconvenient. For this reason, the following preferred solution is also proposed in this solution, that is, a second valve 15 for controlling the opening and closing of the branch pipe is also installed at the connection between the branch pipe 202 and the main pipe 201. Then, to control which branch pipe to open, only need to control the corresponding second valve. It should be noted that in this solution, the second valve is an electric control valve and is electrically connected to the photovoltaic power supply device to realize the power supply for electric drive.

[0046] In addition, in order to further improve the safety of this solution, that is, to prevent the biogas slurry from discharging from the biogas slurry tank automatically when the first traction line and the second traction line break at the same time (the free end of the elastic conduit sinks into the biogas slurry), a third valve 16 is also installed on the main pipe. The third valve is an electric control valve and is electrically connected to the photovoltaic power supply device. When this solution is in a non-irrigation state, the third valve can be controlled to close.

[0047] Working principle: First, introduce the biogas slurry that meets the growth needs of nearby plants into the biogas slurry tank. When it is necessary to irrigate the biogas slurry, the staff can first loosen the first traction rope, and then drive the winch to turn over so that the wound second traction rope is released. The free end of the elastic conduit will immediately sink into the biogas slurry, and the biogas slurry will then enter the elastic conduit and enter the drain pipe group through the elastic conduit to realize the irrigation of the biogas slurry. When it is not necessary to irrigate the biogas slurry, only need to pull the first traction line or the second traction line to raise the free end of the elastic conduit above the liquid level of the biogas slurry again.

[0048] It should be noted that when the biogas slurry is stored in the biogas slurry storage tank, in order to avoid the generation of a large amount of biogas, a large amount of air can be sent into the biogas slurry storage tank through a blower and an air diffuser pipe to achieve the aeration treatment of the biogas slurry. Among them, the ORP sensor / DO sensor, as the monitoring device for the biogas slurry, can control the blower electrically connected to it to rotate automatically when the water quality of the biogas slurry is lower than the set value, so as to achieve the aeration treatment of the biogas slurry.

[0049] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A field biogas slurry irrigation system, characterized in that: including a biogas slurry pit (1); a liquid discharge pipe group (2), including a main pipe (201) and at least one branch pipe (202) connected to the main pipe (201), the main pipe (201) being communicated with the bottom of the biogas slurry pit (1), and the at least one branch pipe (202) being connected to the main pipe (201); an elastic conduit (3) connected to the inner end of the main pipe (201) extending into the biogas slurry pit (1); a first towing line (4), one end of which is connected to the free end of the elastic conduit (3), and the other end of which passes through the upper part of the biogas slurry pit (1) and then pulls the elastic conduit (3) to make the free end of the elastic conduit (3) higher than the liquid level of the biogas slurry in the biogas slurry pit (1).

2. The field biogas slurry irrigation system according to claim 1, characterized in that An inspection opening (101) is provided at the top of the biogas slurry pit (1), and an inspection door (5) is hermetically covered on the inspection opening (101).

3. The field biogas slurry irrigation system according to claim 1, characterized in that A liquid level gauge (6) communicated with the biogas slurry pit (1) is provided on the side of the biogas slurry pit (1).

4. The field biogas slurry irrigation system according to claim 1, wherein A sludge cleaning opening (102) is further provided at the bottom of the biogas slurry pit (1), and a first valve (7) is provided on the sludge cleaning opening (102).

5. The field biogas slurry irrigation system according to claim 1, characterized in that A photovoltaic power supply device (8) is provided at the upper part of the biogas slurry pit (1), a blower (9) electrically connected to the photovoltaic power supply device (8) is further provided on the top of the biogas slurry pit (1), an air distribution pipe (10) is laid on the top of the biogas slurry pit (1), and the blower (9) is communicated with the air distribution pipe (10).

6. The field biogas slurry irrigation system according to claim 5, wherein A number of elastic fillers (11) are evenly hung in the biogas slurry pit (1).

7. The field biogas slurry irrigation system according to claim 6, characterized in that An ORP sensor / DO sensor (12) is further provided in the biogas slurry pit (1), and the ORP sensor / DO sensor (12) is electrically connected to the blower (9) respectively.

8. The field biogas slurry irrigation system according to claim 5, characterized in that A winch (13) is further provided on the top of the biogas slurry pit (1), a second towing line (14) is wound on the winch (13), and one end of the second towing line (14) is connected to the free end of the elastic conduit (3).

9. The field biogas slurry irrigation system according to claim 5, characterized in that A second valve (15) is provided on the branch pipe discharge pipe, and the second valve (15) is electrically connected to the photovoltaic power supply device (8).

10. The field biogas slurry irrigation system according to claim 5, characterized in that A third valve (16) is provided on the main pipe (201), and the third valve (16) is electrically connected to the photovoltaic power supply device (8).

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