A farmland water and fertilizer recycling device

Abstract

The utility model discloses a farmland water and fertilizer recycling device, and relates to the technical field of agricultural equipment. A farmland water and fertilizer recycling device comprises a plurality of groups of experimental fields arranged in sequence, wherein an ecological ditch is arranged along the longitudinal direction of the experimental fields, and a double water inlet centrifugal pump is installed in the ecological ditch; it also comprises an irrigation mechanism, and the irrigation mechanism extracts the fertilizer water in the ecological ditch into the experimental fields through the double water inlet centrifugal pump; it also comprises a drainage mechanism, and the drainage mechanism extracts the water in the experimental fields into the ecological ditch using the double water inlet centrifugal pump, and the two water inlet ends of the double water inlet centrifugal pump are respectively equipped with a first water inlet pipe and a second water inlet pipe, and the water outlet end of the double water inlet centrifugal pump is equipped with a water outlet pipe. The utility model can complete the functions of irrigation and drainage of the experimental fields and irrigation of fertilizer water between the experimental fields by a double water inlet centrifugal pump, and the pipeline system is reasonably designed, which is convenient for scientific management and more convenient to use, so as to achieve scientific irrigation and drainage.

Description

Technical Field

[0001] The utility model relates to the technical field of agricultural equipment, in particular to a farmland water and fertilizer recycling device. Background Art

[0002] Agricultural research institutes and agricultural colleges of many universities use experimental fields to study the growth status of plants, and water and fertilizer management is the key to ensuring the growth, appearance and quality of plants. Generally, an ecological ditch is dug next to the experimental field, and the fertilizer and water in the ecological ditch are pumped into the experimental field through pipelines.

[0003] However, the design of the existing piping system is not scientific enough, and often requires the use of multiple water pumps. It is also unable to flexibly control the fertilizer and water in the experimental fields, causing management difficulties. Utility Model Content

[0004] The purpose of the utility model is to provide a farmland water and fertilizer recycling device to solve the problems raised in the above background technology.

[0005] To achieve the above purpose, the utility model provides the following technical solutions: a farmland water and fertilizer recycling device, comprising a plurality of groups of experimental fields arranged in sequence, wherein an ecological ditch is arranged along the longitudinal direction of the experimental fields, and a double water inlet centrifugal pump is installed in the ecological ditch;

[0006] It also includes an irrigation mechanism, which pumps fertilizer water from the ecological ditch into the experimental field through a double-inlet centrifugal pump;

[0007] It also includes a drainage mechanism, which uses a double-inlet centrifugal pump to pump water from the experimental field into the ecological ditch.

[0008] As a preferred technical solution in the present application, a first water inlet pipe and a second water inlet pipe are respectively installed at the two water inlet ends of the double water inlet centrifugal pump, and a water outlet pipe is installed at the water outlet end of the double water inlet centrifugal pump.

[0009] As the preferred technical solution in the present application, the irrigation mechanism includes a water collecting pipe horizontally installed in the ecological ditch, one end of the first water inlet pipe of the double-inlet centrifugal pump is connected to the water collecting pipe, a switch valve is installed at the water inlet of the water collecting pipe, a main drainage pipe is installed at the ridge of the experimental field, one end of the outlet pipe is connected to the main drainage pipe, and a plurality of drainage pipes are equidistantly installed on the main drainage pipe, the drainage pipes correspond one-to-one to the experimental fields, and drainage valves are installed on the drainage pipes.

[0010] As the preferred technical solution in the present application, the drainage mechanism includes a water inlet main pipe installed at the ridge of the experimental field, a plurality of delivery pipes are connected between the water inlet main pipe and the water collecting pipe, a second water suction valve is installed on the delivery pipe, a plurality of water suction bends are equidistantly arranged on the delivery pipe, the water outlets of the water suction bends are all located in the experimental field, a horizontally arranged irrigation main pipe is installed on the water outlet pipe, and a three-way valve is installed at the connection between the irrigation main pipe and the water outlet pipe.

[0011] As a preferred technical solution in the present application, water pipe valves are installed on both the first water inlet pipe and the second water inlet pipe of the double water inlet centrifugal pump.

[0012] As a preferred technical solution in the present application, a first water suction valve is installed on each of the water suction elbows.

[0013] As a preferred technical solution in the present application, the height of the bottom end of the water suction elbow is lower than the height of the bottom end of the drainage pipe.

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

[0015] A farmland water and fertilizer recycling device, which utilizes a double-inlet centrifugal pump to complete the functions of irrigation and drainage of an experimental field and fertilizer and water irrigation between experimental fields. The piping system is reasonably designed, convenient for scientific management, and more convenient to use, so that scientific irrigation and drainage can be achieved, and the experimental field can be reasonably controlled according to actual conditions. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the structure of the utility model;

[0017] Figure 2 It is a structural schematic diagram of the utilization device of the utility model;

[0018] Figure 3 It is a structural schematic diagram of the irrigation mechanism of the utility model;

[0019] Figure 4 It is a schematic diagram of the drainage structure of the utility model.

[0020] In the figure: 1. Experimental field; 2. Water collecting pipe; 201. Switch valve; 3. Double water inlet centrifugal pump; 301. First water inlet pipe; 302. Second water inlet pipe; 303. Outlet pipe; 304. Water pipe valve; 4. Drainage main pipe; 401. Drainage pipe; 402. Drainage valve; 5. Irrigation main pipe; 6. Inlet main pipe; 601. Water suction elbow; 602. First water suction valve; 603. Delivery pipe; 604. Second water suction valve; 7. Ecological ditch. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] It should be noted that, in the description of the present invention, the terms "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" etc. indicating directions or positional relationships are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description. They do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present invention.

[0023] Furthermore, it should be understood that for the sake of ease of description, the sizes of the various components shown in the drawings are not drawn according to actual proportions. For example, the thickness or width of certain layers may be exaggerated relative to other layers.

[0024] It should be noted that like reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined or described in one drawing, it will not require further detailed discussion and description in the description of the subsequent drawings.

[0025] like Figure 1-Figure 4 As shown, the utility model provides a technical solution: a farmland water and fertilizer recycling device, comprising a plurality of groups of experimental fields 1 arranged in sequence, an ecological ditch 7 is arranged along the longitudinal direction of the experimental field 1, the ecological ditch 7 is arranged in parallel with the experimental field 1, and the height of the ecological ditch 7 is lower than the height of the experimental field 1, the experimental field 1 is formed by surrounding ridges, and a double water inlet centrifugal pump 3 is installed in the ecological ditch 7; and also includes an irrigation mechanism, the irrigation mechanism extracts fertilizer water in the ecological ditch 7 into the experimental field 1 through the double water inlet centrifugal pump 3;

[0026] It also includes a drainage mechanism, which uses a double-inlet centrifugal pump 3 to pump water in the experimental field 1 into the ecological ditch 7.

[0027] As a specific embodiment, Figure 2 , Figure 3 and Figure 4As shown, the first water inlet pipe 301 and the second water inlet pipe 302 are respectively installed at the two water inlet ends of the double water inlet centrifugal pump 3, and the water outlet pipe 303 is installed at the water outlet end of the double water inlet centrifugal pump 3. Specifically, the double water inlet centrifugal pump 3 is a centrifugal pump with two water inlets and one water outlet, and the first water inlet pipe 301 and the second water inlet pipe 302 of the double water inlet centrifugal pump 3 are both installed with a water pipe valve 304.

[0028] As a specific embodiment, Figure 3 As shown, the irrigation mechanism includes a water collecting pipe 2 installed horizontally in the ecological ditch 7, one end of the first water inlet pipe 301 of the double water inlet centrifugal pump 3 is connected to the water collecting pipe 2, and a switch valve 201 is installed at the water inlet of the water collecting pipe 2. A drainage main pipe 4 is installed at the ridge of the experimental field 1, one end of the outlet pipe 303 is connected to the drainage main pipe 4, and a plurality of drainage pipes 401 are equidistantly installed on the drainage main pipe 4, the drainage pipes 401 correspond to the experimental fields 1 one by one, and drainage valves 402 are installed on the drainage pipes 401. It should be noted that the number of drainage pipes 401 is the same as the number of experimental fields 1, each drainage pipe 401 supplies water to one experimental field 1, and the drainage pipes 401 are all installed on the ridge, with the water outlet facing downward and located above the experimental field 1. Specifically, by turning on the double-inlet centrifugal pump 3, the water pipe valve 304 on the first water inlet pipe 301 is opened, and the water pipe valve 304 on the second water inlet pipe 302 is closed, and then the switch valve 201 on the water collection pipe 2 is opened, the fertilizer water in the ecological ditch 7 will be pumped into the water collection pipe 2, and then the fertilizer water flows To the first water inlet pipe 301, and then from the outlet pipe 303 of the double water inlet centrifugal pump 3 to the drainage main pipe 4, during the irrigation process, adjust the three-way valve on the irrigation main pipe 5 so that the water channel in the irrigation main pipe 5 is closed, and the flow channel in the outlet pipe 303 is open, so that the fertilizer water can flow through the outlet pipe 303 to the drainage main pipe 4, and the fertilizer water gradually fills the entire drainage main pipe 4, and then selectively open the drainage valve 402 of the drainage pipe 401 on a certain experimental field 1, the fertilizer water will flow into the drainage pipe 401 and finally irrigate the experimental field 1. It should also be noted here that when it is necessary to irrigate multiple groups of experimental fields 1 at the same time, it is necessary to open the drainage valves 402 on all drainage pipes 401, and when irrigating a certain experimental field 1 or several groups of experimental fields 1 separately, it is only necessary to open the drainage valve 402 above the experimental field 1 that needs to be irrigated and keep the drainage valve 402 on the experimental field 1 that does not need to be irrigated closed.

[0029] As a specific embodiment, Figure 4As shown, the drainage mechanism includes a water inlet main pipe 6 installed at the ridge of the experimental field 1, a plurality of delivery pipes 603 are connected between the water inlet main pipe 6 and the water collecting pipe 2, a second water suction valve 604 is installed on each of the delivery pipes 603, a plurality of water suction elbows 601 are equidistantly arranged on the delivery pipes 603, and a first water suction valve 602 is installed on each of the water suction elbows 601. Because the water inlet of the water suction elbow 601 is close to the soil of the experimental field 1, the water inlet of the water suction elbow 601 is located below the water level, but the complex environment in the experimental field 1, such as waterweed, algae, etc., easily blocks the water suction elbow 601 and the pump, so a filter is installed at the water inlet at the bottom of the water suction elbow 601, and the filter has a very small aperture to prevent waterweed and algae from entering the water suction elbow 601. The outlets of the water suction elbow 601 are all located in the experimental field 1, and a horizontally arranged irrigation main pipe 5 is installed on the outlet pipe 303, and a three-way valve is installed at the connection between the irrigation main pipe 5 and the outlet pipe 303. It should be noted that the number of the delivery pipe 603, the water suction elbow 601 and the drainage pipe 401 is the same, and is the same as that of the experimental field 1. Specifically, each experimental field 1 corresponds to a set of delivery pipes 603, water suction elbows 601 and drainage pipes 401.

[0030] When the water in the experimental field 1 is discharged into the ecological ditch 7, the water pipe valve 304 on the first water inlet pipe 301 is first closed to block the first water inlet pipe 301, and then the switch valve 201 on the water collecting pipe 2 is closed, and the water collecting pipe 2 is in a closed state. Then, the double water inlet centrifugal pump 3 is turned on to suck away the air in the water collecting pipe 2 to generate negative pressure, and then the second water suction valve 604 on the delivery pipe 603 is selectively opened to generate negative pressure in the water inlet main pipe 6 and the delivery pipe 603. Finally, the first water suction valve 602 on the water suction elbow 601 is selectively opened, so that the water in the experimental field 1 is pumped into the water suction pipe 601. The water in the bend pipe 601 flows into the water inlet main pipe 6, and then flows from the delivery pipe 603 to the water collecting pipe 2. Then the water in the water collecting pipe 2 enters the double water inlet centrifugal pump 3 through the second water inlet pipe 302, and then flows out from the outlet pipe 303 on the double water inlet centrifugal pump 3. At this time, it is necessary to adjust the three-way valve at the outlet pipe 303 and the irrigation main pipe 5 so that the flow channel between the outlet pipe 303 and the irrigation main pipe 5 is connected, and the flow channel between the outlet pipe 303 and the drainage main pipe 4 is closed, so that the water in the outlet pipe 303 will flow into the irrigation main pipe 5, and flow out from the irrigation main pipe 5 to the ecological ditch 7. In addition, the drainage mechanism can be used to drain all or some of the experimental fields 1. Specifically, in the drainage process, by controlling the opening state of the first water suction valve 602 on the water suction bend pipe 601, the number of drained experimental fields 1 can be controlled, so as to achieve scientific drainage and reasonable drainage according to actual conditions.

[0031] In addition, the device can also be used to realize fertilizer and water irrigation between the experimental fields 1. For example, when the water level in the first experimental field 1 is too high, while the water level in the fifth experimental field 1 is relatively low, the device can be used to discharge the excess fertilizer and water in the first experimental field 1 to the fifth experimental field 1. Specifically, first close the water pipe valve 304 on the first water inlet pipe 301 to block the first water inlet pipe 301, then close the switch valve 201 on the water collecting pipe 2, the water collecting pipe 2 is in a closed state, and then start the double water inlet centrifugal pump 3 , sucking away the air in the water collecting pipe 2 to generate negative pressure, then opening the second water suction valve 604 on the delivery pipe 603, so that negative pressure is also generated in the water inlet main pipe 6 and the delivery pipe 603. It should be explained here that the second water suction valve 604 on the last delivery pipe 603 can be opened, so that when negative pressure is generated in the water inlet main pipe 6, the water in the first experimental field 1 flows to the water inlet main pipe 6 and gradually fills the entire water inlet main pipe 6, that is, the water finally flows to the end of the water inlet main pipe 6 close to the last delivery pipe 603. Then open the first water suction valve 602 on the first delivery pipe 603, so that the water in the first experimental field 1 is drawn into the water suction elbow 601, and then flows into the water inlet main pipe 6. After the fertilizer water gradually fills the water inlet main pipe 6, close the double water inlet centrifugal pump 3, and open the first water suction valve 602 on the fifth water suction elbow 601, and the water in the water inlet main pipe 6 will be discharged to the fifth experimental field 1.

[0032] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A farmland water and fertilizer recycling device, comprising a plurality of groups of experimental fields (1) arranged in sequence, characterized in that: An ecological ditch (7) is arranged in the longitudinal direction of the experimental field (1), and a double water inlet centrifugal pump (3) is installed in the ecological ditch (7); It also includes an irrigation mechanism, which pumps fertile water in the ecological ditch (7) into the experimental field (1) through a double water inlet centrifugal pump (3); It also includes a drainage mechanism, which uses a double-inlet centrifugal pump (3) to pump water in the experimental field (1) into the ecological ditch (7).

2. The farmland water and fertilizer recycling device according to claim 1, characterized in that: The two water inlet ends of the double water inlet centrifugal pump (3) are respectively provided with a first water inlet pipe (301) and a second water inlet pipe (302), and the water outlet end of the double water inlet centrifugal pump (3) is provided with a water outlet pipe (303).

3. A farmland water and fertilizer recycling device according to claim 2, characterized in that: The irrigation mechanism comprises a water collecting pipe (2) installed horizontally in an ecological ditch (7); one end of a first water inlet pipe (301) of a double water inlet centrifugal pump (3) is connected to the water collecting pipe (2); a switch valve (201) is installed at the water inlet of the water collecting pipe (2); a drainage main pipe (4) is installed at the ridge of the experimental field (1); one end of a water outlet pipe (303) is connected to the drainage main pipe (4); and a plurality of drainage pipes (401) are installed at equal intervals on the drainage main pipe (4); the drainage pipes (401) correspond to the experimental fields (1) one by one, and drainage valves (402) are installed on the drainage main pipe (401).

4. The farmland water and fertilizer recycling device according to claim 3 is characterized in that: The drainage mechanism comprises a water inlet main pipe (6) installed at the ridge of the experimental field (1); a plurality of delivery pipes (603) are connected between the water inlet main pipe (6) and the water collecting pipe (2); a second water suction valve (604) is installed on each of the delivery pipes (603); a plurality of water suction elbows (601) are equidistantly arranged on the delivery pipe (603); the water outlets of the water suction elbows (601) are all located in the experimental field (1); a horizontally arranged irrigation main pipe (5) is installed on the water outlet pipe (303); and a three-way valve is installed at the connection between the irrigation main pipe (5) and the water outlet pipe (303).

5. The farmland water and fertilizer recycling device according to claim 2, characterized in that: Water pipe valves (304) are installed on both the first water inlet pipe (301) and the second water inlet pipe (302) of the dual water inlet centrifugal pump (3).

6. The farmland water and fertilizer recycling device according to claim 4, characterized in that: The water suction elbow (601) is provided with a first water suction valve (602).

7. The farmland water and fertilizer recycling device according to claim 4, characterized in that: The height of the bottom end of the water suction elbow (601) is lower than the height of the bottom end of the drainage pipe (401).

8. The farmland water and fertilizer recycling device according to claim 4, characterized in that: The water inlet at the bottom of the water suction elbow (601) is equipped with a filter screen.

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