A water conservancy construction method for farmland drainage station

Abstract

This invention relates to the technical field of water conservancy engineering, specifically to a water conservancy construction method for a farmland drainage station, comprising the following steps: planning the location of farmland along the riverbank; leaving space between two farmlands to construct a pit for collecting silt; designating the corner of the farmland closest to the pit and the riverbank as the lowest depression, and pouring concrete at this location to install a first water pump; a pipe on one side of the first water pump extending into the pit; setting up an irrigation tank on one side of the first water pump; connecting the top of the first water pump and the tank via a three-way valve, the other end of which extends towards the riverbank; constructing a slope at the riverbank, and establishing a track on the slope; installing a sliding assembly along the track and constructing a pump house on the sliding assembly; installing a partition inside the pump house; fixing a drainage pump and a second water pump on both sides of the partition; and also providing an extension pipe inside the pump house. This invention can combine the application of farmland drainage and irrigation, improving the flood control and drainage function of low-lying areas such as farmland.

Description

Technical Field

[0001] This invention relates to the technical field of water conservancy engineering, specifically to a water conservancy construction method for a farmland drainage station. Background Technology

[0002] Farmland is typically planned near rivers to facilitate water conservancy projects. Farmland cultivation often creates low-lying areas, making flood control and drainage a major challenge during the rainy season. Currently, most areas rely on pipes to guide water downhill to nearby rivers. Some areas consider low-lying farmland and build pumping stations to address insufficient drainage power due to elevation differences. However, farmland often carries large amounts of silt during floods, easily clogging pipes and disrupting drainage systems, potentially flooding farmland and causing crop losses. While existing pumping stations provide some drainage power, their construction requires careful consideration, needing to be built at higher elevations. They lack adequate measures to handle potential tidal surges, increasing the head and workload of pumps. Furthermore, during droughts, farmland often needs to draw water from rivers for irrigation. Current methods typically involve connecting pipes only when needed to pump water to water plants or tanks, frequently requiring the transport of pumps and other equipment. Summary of the Invention

[0003] To address the problems existing in the prior art, the present invention aims to provide a water conservancy construction method for farmland drainage stations. This invention combines farmland drainage and irrigation, improving flood control and drainage capabilities in low-lying areas such as farmland during the rainy season, and enabling the extraction and storage of river water for farmland irrigation during droughts.

[0004] The present invention discloses a method for constructing a farmland drainage pumping station, comprising the following steps:

[0005] Farmland locations are planned along the riverbank, and a pit is built between two farmlands to collect silt. The corner of the farmland near the pit and the riverbank is set as the lowest depression, and concrete is poured here to install the first water pump. The pipe on one side of the first water pump extends into the pit.

[0006] An irrigation tank is installed on one side of the first water pump. The top of the first water pump and the top of the water tank are connected by a three-way valve, and the other end of the three-way valve extends toward the riverbank.

[0007] A slope is constructed at the riverbank, and a track is set up on the slope. A sliding assembly is installed along the track, and a pump house is built on the sliding assembly. A partition is set inside the pump house, and a drainage pump and a second water pump are fixed on both sides of the partition. An extension pipe is also provided inside the pump house.

[0008] In one embodiment, a filter screen is provided between the first water pump and the three-way valve, the first water pump is connected to the pit through a delivery pipe, and the delivery pipe is connected below the filter screen, and a spiral pump is provided inside the delivery pipe.

[0009] In one embodiment, the sliding assembly includes a rotating wheel adapted to the track, the rotating wheel's axis of rotation extending into the pump house and wound with a pull rope, and a take-up reel at the top of the track, the take-up reel being linked to the rotating wheel via the pull rope, thereby adjusting the position of the pump house relative to the track.

[0010] In one embodiment, the track consists of two symmetrically arranged racks located on opposite sides of the pump house, and the rotating wheel consists of two gears that mesh with the racks respectively.

[0011] In one embodiment, the two take-up reels are driven synchronously by a motor, the drive shaft of which is equipped with a ratchet.

[0012] In one embodiment, the pump house is surrounded by guardrails, and the bottom of the pump house is also equipped with rollers that contact the slope.

[0013] In one embodiment, the pump house has an opening at the bottom on the side closest to the riverbank, and the inlet pipe of the second pump bends downward from the opening, with a water level gauge installed at the inlet pipe.

[0014] In one embodiment, the pit is provided with a waterproof layer.

[0015] Compared with the prior art, the beneficial effects of the technical solution of the present invention are:

[0016] This invention combines farmland drainage and irrigation, improving flood control and drainage in low-lying areas like farmland during the rainy season. A first pump provides drainage power, drawing excess water from low-lying areas to higher levels while simultaneously filtering the collected silt into trenches. A large volume of water is then transported along a slope to a pumping station on the riverbank. A drainage pump in the station further powers the water, diverting it into the river to prevent flooding. During droughts, river water can be drawn for storage and irrigation. In this case, a second pump in the pumping station operates. The pumping station's location can be adjusted according to river conditions, allowing the second pump to draw water and channel it through a three-way valve to a water tank or other suitable equipment. The water tank is then connected to an irrigation system for water distribution. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the construction method of a farmland drainage station according to the present invention;

[0018] Figure 2 This is a top view of the overall structure of the present invention;

[0019] Figure 3 This is a schematic diagram of the structure of the first water pump of the present invention;

[0020] Figure 4 This is a structural schematic diagram of the pump room of the present invention;

[0021] Figure 5 This is a schematic diagram of the structure of the second water pump of the present invention.

[0022] Explanation of reference numerals in the attached drawings: 1-pit, 2-first water pump, 21-filter screen, 22-delivery pipe, 3-water tank, 4-three-way valve, 5-track, 6-sliding assembly, 61-rotating wheel, 62-pull rope, 63-reel, 7-pump room, 71-guardrail, 72-roller, 73-water level gauge, 8-drainage pump, 9-second water pump, 10-extension pipe. Detailed Implementation

[0023] The accompanying drawings are for illustrative purposes only and should not be construed as limiting the scope of this patent. To better illustrate this embodiment, some components in the drawings may be omitted, enlarged, or reduced, and do not represent the actual dimensions of the product. It is understandable to those skilled in the art that some well-known structures and their descriptions may be omitted in the drawings.

[0024] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation" and "connection" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances. The technical solution of this invention will be further described below with reference to the accompanying drawings and embodiments.

[0025] like Figure 1-Figure 5 As shown, a method for constructing a farmland drainage pumping station according to the present invention includes the following steps:

[0026] The farmland locations are planned along the riverbank. Space is left between two farmlands to build a pit 1 for collecting silt. The corner of the farmland near the pit 1 and the riverbank is set as the lowest depression, and concrete is poured here to install the first water pump 2. The pipe on one side of the first water pump 2 extends into the pit 1.

[0027] An irrigation water tank 3 is installed on one side of the first water pump 2. The top of the first water pump 2 and the top of the water tank 3 are connected by a three-way valve 4, and the other end of the three-way valve 4 extends towards the riverbank.

[0028] A slope is built at the riverbank, and a track 5 is set on the slope. A sliding component 6 is installed along the track 5, and a pump house 7 is built on the sliding component 6. A partition is set inside the pump house 7, and a drainage pump 8 and a second water pump 9 are fixed on both sides of the partition. An extension pipe 10 is also set inside the pump house 7.

[0029] This invention combines farmland drainage and irrigation, improving flood control and drainage capabilities in low-lying areas like farmland during the rainy season. A first pump 2 provides drainage power, drawing excess water from low-lying areas to a higher level. Simultaneously, the extracted silt is filtered into a pit 1, which is slightly higher than the farmland and has a waterproof layer inside and on top to prevent water from flowing back into the farmland and to prevent rainwater from directly flooding the pit 1. To prevent silt accumulation in the pit 1, silt can be promptly cleared along the pit 1 if necessary, or the silt can be refilled on the other side of the farmland to create a higher area, ensuring that the first pump 2 is positioned at the lowest point. A large amount of water, through the opening of the three-way valve 4, connects to the drainage pump 8 in the pump house 7, allowing it to be transported along a certain slope to the riverbank. The pump house 7 on the side, and the drainage pump 8 in the pump house 7 will further provide drainage power to divert water into the river to prevent farmland from being flooded. The position of the pump house 7 can be adjusted according to the river conditions by sliding the sliding component 6 on the track 5 to keep the pump house 7 above the river surface as much as possible. The connection between the three-way valve 4 and the drainage pump 8 can be extended by splicing the extension pipe 10 as needed. In drought, it can draw river water for storage and farmland irrigation. At this time, the second water pump 9 in the pump house 7 mainly works. The position of the pump house 7 can also be adjusted according to the river conditions so that the second water pump 9 can draw river water and connect to the three-way valve 4 through the extension pipe 10 to open its other side channel and lead the water to the water tank 3 or corresponding equipment. The water tank 3 is then connected to the irrigation system to distribute the water volume.

[0030] In one embodiment, a filter screen 21 is provided between the first water pump 2 and the three-way valve 4. The first water pump 2 is connected to the pit 1 via a delivery pipe 22, which is located below the filter screen 21. A spiral pump is installed inside the delivery pipe 22. The filter screen 21 is placed inside the pipe connecting the first water pump 2 and the three-way valve 4. Due to the drainage pressure of the first water pump 2, a large amount of water mixed with mud and silt will be sent to the drainage pump 8 of the pump room 7 through the connection of the three-way valve 4. Through the isolation of the filter screen 21 and the drainage power provided by the drainage pump 8, the water flow is not easily blocked by silt. The delivery pipe 22 is provided below the filter screen 21, and the delivery pipe 22 is mainly equipped with an Archimedes spiral to transport the silt isolated by the filter screen 21 to the pit 1 for centralized treatment through stable rotation, effectively avoiding the problem of silt blockage at the filter screen 21.

[0031] In one embodiment, the sliding assembly 6 includes a rotating wheel 61 adapted to the track 5. The rotating shaft of the rotating wheel 61 extends into the pump house 7 and is wound with a pull rope 62, which can be made of a relatively strong rope such as steel wire rope. A take-up reel 63 is provided at the top of the track 5. The take-up reel 63 is linked to the rotating wheel 61 through the pull rope 62, thereby adjusting the position of the pump house 7 relative to the track 5. The sliding assembly 6 mainly provides power for the movement of the pump house 7, and it uses the rotating wheel 61 arranged parallel to the track 5 as the power source. When the tide is high, the reel 63 starts to retract the pull rope 62. Due to the winding of the other end of the pull rope 62, its friction will cause the rotating wheel 61 to rotate, thereby causing the pump house 7 to climb along the track 5. When the water level drops, in order to enable the second pump 9 to draw water from the river, the reel 63 can be reversed or released, allowing the pump house 7 to slide down by gravity. At the same time, the pull rope 62 is tightly wound around the rotating shaft of the rotating wheel 61. Once the appropriate position is reached, the reel 63 is tightened to stop the pump house 7 from moving.

[0032] Furthermore, to ensure stable movement of the pump house 7, the track 5 can be configured as two symmetrically arranged racks located on either side of the pump house 7. The rotating wheels 61 consist of two gears that mesh with the racks. The meshing of the gears and racks makes the up-and-down sliding of the pump house 7 more stable and easier to control, preventing excessive acceleration due to gravity and avoiding adverse effects such as breakage of the pull rope 62. Simultaneously, the two corresponding take-up reels 63 are synchronously driven by a motor. The motor's drive shaft is equipped with a ratchet, which prevents the take-up reels 63 from reversing when pulling the pump house 7 upwards. When lowering the pump house 7, the motor with the ratchet needs to be disengaged from the take-up reels 63.

[0033] In addition, the pump house 7 is surrounded by guardrails 71 to protect the safety of maintenance personnel when inspecting the pump body. The bottom of the pump house 7 is also equipped with rollers 72, which contact the slope to facilitate the pump house 7 to slide up and down along the slope and avoid the increase of friction between the pump house 7 and the slope due to silt washed away during the rainy season.

[0034] In one embodiment, such as Figure 5 As shown, the pump house 7 has an opening at the bottom on the side closest to the riverbank, and the inlet pipe of the second water pump 9 extends downward from this opening, with a water level gauge 73 installed at the inlet pipe. When adjusting the pump house 7's vertical sliding position, the inlet pipe of the second water pump 9 should be used as a reference to ensure that the opening of the pump house 7 is above the river surface, while the inlet pipe extends into the river water, avoiding the suction of silt from the riverbank. The water level gauge 73 is installed simultaneously to detect the water level. The pump house 7 can be pulled up in time by a motor connected to the reel 63 via a control system, preventing the pump body or other equipment inside from being directly submerged by the river water.

[0035] In the description of this application, it should be understood that the orientation or positional relationship indicated by directional terms such as "front, back, up, down, left, right", "horizontal, vertical, horizontal" and "top, bottom" is usually based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing this application and simplifying the description. Unless otherwise stated, these directional terms do not indicate or imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on the scope of protection of this application.

[0036] The positional relationships described in the figures are for illustrative purposes only and should not be construed as limiting this patent. Clearly, the above embodiments of the present invention are merely examples to clearly illustrate the invention and are not intended to limit the implementation of the invention. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the scope of protection of the claims of this invention.

Claims

1. A method for constructing a farmland drainage pumping station, characterized in that, Includes the following steps: The farmland is planned along the riverbank, and a pit (1) is built between two farmlands to collect silt. The corner of the farmland near the pit (1) and the riverbank is set as the lowest depression, and concrete is poured here to install the first water pump (2). The pipe on one side of the first water pump (2) extends into the pit (1). An irrigation tank (3) is set on one side of the first water pump (2). The top of the first water pump (2) and the water tank (3) are connected by a three-way valve (4). The other end of the three-way valve (4) extends toward the riverbank. A slope is built at the riverbank, and a track (5) is set on the slope. A sliding assembly (6) is installed along the track (5), and a pump house (7) is built on the sliding assembly (6). A partition is set inside the pump house (7), and a drainage pump (8) and a second water pump (9) are fixed on both sides of the partition. An extension pipe (10) is also set inside the pump house (7). The drainage pump (8) and the second water pump (9) are connected to the three-way valve (4) through the extension pipe (10). The sliding assembly (6) includes a rotating wheel (61) adapted to the track (5). The rotating shaft of the rotating wheel (61) extends into the pump house (7) and is wound with a pull rope (62). The top of the track (5) is provided with a take-up wheel (63). The take-up wheel (63) is linked with the rotating wheel (61) through the pull rope (62) to adjust the position of the pump house (7) relative to the track (5). The pump house (7) has an opening at the bottom on the side near the riverbank, and the inlet pipe of the second water pump (9) extends downward from the opening, with a water level gauge (73) provided at the inlet pipe. When the pump house (7) is adjusted up and down, the inlet pipe of the second water pump (9) is used as the reference so that the opening of the pump house (7) is above the river surface and the inlet pipe can extend into the river water to avoid sucking up the silt on the riverbank. At the same time, a water level gauge (73) is installed to detect the water level. The motor of the take-up reel (63) is connected through the control system to pull up the pump house (7) in time to avoid the pump body or other equipment inside being directly submerged by the river water.

2. The method for constructing a farmland drainage pumping station according to claim 1, characterized in that, A filter screen (21) is provided between the first water pump (2) and the three-way valve (4). The first water pump (2) is connected to the pit (1) through a delivery pipe (22), and the delivery pipe (22) is connected below the filter screen (21). A spiral pump is provided inside the delivery pipe (22).

3. The method for constructing a farmland drainage pumping station according to claim 1, characterized in that, The track (5) consists of two symmetrically arranged racks located on both sides of the pump house (7), and the rotating wheel (61) consists of two gears that mesh with the racks respectively.

4. The method for constructing a farmland drainage pumping station according to claim 3, characterized in that, The two take-up reels (63) are driven synchronously by a motor, and the drive shaft of the motor is equipped with a ratchet.

5. The method for constructing a farmland drainage pumping station according to claim 4, characterized in that, The pump house (7) is surrounded by guardrails (71), and the bottom of the pump house (7) is also provided with rollers (72), which are in contact with the slope.

6. A method for constructing a farmland drainage pumping station according to any one of claims 1-5, characterized in that, The pit (1) is provided with a waterproof layer.

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