Flood drainage station with irrigation function

Abstract

The invention relates to the technical field of drainage stations, in particular to a drainage station with an irrigation function, which comprises an inland river protection slope and an outer river protection slope, one side of the inland river protection slope is provided with a wet drainage system, and the wet drainage system is used for pumping rainwater and sewage accumulated in a low-lying area to a water outlet at a high position to realize preliminary drainage; the wet drainage system comprises a pump station and a water outlet pool, one side of the water outlet pool is connected with a self-drainage culvert, the wet drainage system is connected with a drainage system and an irrigation system, the drainage system comprises a drainage culvert and a drainage groove, and the irrigation system comprises an irrigation culvert, an irrigation pool, an irrigation canal and an irrigation water supply pipe. The irrigation system is arranged on the basis of the flood drainage station, the utilization rate of the pump set is increased, the flood drainage and fighting capacity of the flood drainage station is improved, the irrigation system is used for sharing the flood drainage pressure, and in cooperation with the drainage system in the rainstorm or flood season, the waterlogging pressure is relieved, and flood inundation is prevented through timely drainage.

Description

Technical Field

[0001] The invention relates to the technical field of waterlogging drainage stations, and in particular to a waterlogging drainage station with irrigation function. Background Art

[0002] There are significant differences in the functions and roles of drainage stations and irrigation stations. They are not the same. Drainage stations are mainly used in urban construction and industrial areas, as well as low-lying areas prone to water accumulation, such as around rivers and lakes. Irrigation stations are mainly used in agricultural production areas, especially farmland areas that need irrigation.

[0003] Drainage stations are mainly used to remove groundwater or lower the groundwater level, as well as to drain accumulated water (such as rainwater, sewage, etc.) to ensure that the ground is not flooded and to maintain the normal operation of cities and industrial areas. Drainage stations include dry drainage and wet drainage, of which wet drainage is often achieved through pumping stations. As an important facility for wet drainage, pumping stations achieve the purpose of drainage by lifting accumulated water to a higher place.

[0004] Irrigation stations are mainly used in agricultural production to transport water from water sources to farmland to meet the growth and development needs of crops. Irrigation stations build pumping stations and other facilities to lift water from low places to high places to irrigate the irrigation area.

[0005] Existing drainage stations and irrigation stations are generally built separately with single functions, used for drainage or irrigation. However, there are similarities in structure between the two, both involving structures such as pumping stations and water outlet pools, and the working hours of irrigation and drainage do not overlap. Therefore, it is feasible to have a drainage station that also takes into account irrigation functions. In the existing technology, drainage stations are only used for drainage and their use is restricted. In addition, if the pump group does not work for a long time, it will also increase the maintenance cost and affect the reliability of the pump station. Summary of the invention

[0006] The purpose of the present invention is to solve the shortcomings of the prior art and to propose a drainage station with irrigation function.

[0007] In order to achieve the above object, the present invention adopts the following technical solutions: A drainage station with irrigation function includes an inner river slope protection and an outer river slope protection. A wet drainage system is arranged on one side of the inner river slope protection. The wet drainage system is used to pump rainwater and sewage accumulated in low-lying areas to a high drainage outlet to achieve preliminary drainage. The wet drainage system includes a pump station and a water outlet pool. A pump group and a monitoring module are arranged in the pump station. A water outlet gate is arranged in the water outlet pool. A self-draining culvert is connected to one side of the water outlet pool. The self-draining culvert runs through the inner river slope protection. The wet drainage system is connected to a drainage system and an irrigation system. The drainage system is used to discharge the rainwater and sewage from the wet drainage system. The rainwater and sewage discharged from the wet drainage system are transported to the discharge outlet or treatment facility. The drainage system includes a drainage culvert and a drainage trough. The drainage trough is provided with a drainage gate. The drainage culvert is connected with the outlet pool and the drainage trough. The drainage trough is arranged corresponding to the outer river slope protection. The irrigation system is used to transport the rainwater and sewage discharged by the wet drainage system to the farmland area that needs irrigation. The irrigation system includes an irrigation culvert, an irrigation pool, an irrigation channel and an irrigation water supply pipe. The irrigation culvert is connected with the outlet pool and the irrigation pool. A water limiting gate is provided between the irrigation pool and the irrigation channel, and a water diversion gate is provided on the irrigation channel.

[0008] Preferably, a water reservoir is opened on the inner side of the pump station near the inner river slope protection, and the pump group includes a water suction pipe, a water pumping pipe and a water pump; one end of the water suction pipe extends into the water reservoir, a sewage collecting elbow joint is provided between the water suction pipe and the water pumping pipe, and a water suction valve is provided on the water suction pipe.

[0009] Preferably, a water pump is arranged on the water pump pipe, one end of the water pump pipe outlet extends to above the water outlet pool, a reversing valve is arranged on the water pump pipe on one side of the water pump outlet, and the reversing valve is connected to the irrigation water supply pipe.

[0010] Preferably, the outlet gates are provided with two groups, which are respectively arranged corresponding to the self-draining culvert and the irrigation culvert, and a water level monitor is provided in the outlet pool. The self-draining culvert and the irrigation culvert are located at the lower part of the outlet pool.

[0011] Preferably, a protective platform is provided between the drainage ditch and the outer river slope protection, a square groove matching the drainage ditch is opened on the protective platform, an S-shaped groove is opened on the outer river slope protection, the bottom of the square groove and the S-shaped groove are provided with concrete bottom protection, and a sand and gravel cushion layer is laid on the upper side of the concrete bottom protection.

[0012] Preferably, a monitoring device is installed on the protection platform, and a hydroelectric generator is arranged in the square trough.

[0013] Preferably, the water limiting gate includes a door panel, a threaded sleeve and a screw rod, the side wall of the irrigation pool is provided with a mounting seat, the threaded sleeve is rotatably connected to the mounting seat, the screw rod is fixedly connected to the door panel, and the threaded sleeve and the screw rod are connected via a spiral pair.

[0014] Preferably, the irrigation channel is arranged in a stepped manner, the irrigation water supply pipe is communicated with the inner side of the irrigation channel, a control valve is provided on the irrigation water supply pipe, and the water outlet of the water limiting gate is located above the gate panel.

[0015] Compared with the prior art, the present invention has the following beneficial effects: 1. The present invention configures an irrigation system on the basis of the drainage station to improve the utilization rate of the pump group and the drainage and flood resistance capacity of the drainage station. The irrigation system is used to share the drainage pressure. In conjunction with the drainage system, timely drainage during rainstorm or flood seasons can reduce the waterlogging pressure and prevent flooding. 2. The present invention connects an irrigation culvert to the outlet pool, uses a pump group to transport irrigation water, makes full use of the pump group, provides reliable and stable irrigation in the non-rainy season, and simultaneously sets a water limiting gate to cooperate with the irrigation water supply pipe to meet the needs of different irrigation volumes. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the three-dimensional structure of the general assembly of a drainage station with irrigation function proposed by the present invention; Figure 2 This is a schematic diagram of the overall assembly of a drainage station with irrigation function proposed by the present invention; Figure 3 A schematic diagram of the three-dimensional structure of a wet drainage system and an irrigation system of a drainage station with irrigation function proposed by the present invention; Figure 4 A schematic diagram of the three-dimensional structure of a drainage system of a drainage station with irrigation function proposed by the present invention; Figure 5 This is a schematic diagram of a pump station with irrigation function proposed in the present invention from a top view; Figure 6 This is a schematic diagram of the partial three-dimensional structure of an irrigation system of a drainage station with irrigation function proposed by the present invention.

[0017] In the figure: 1. Inner river slope protection; 11. Protection net; 2. Pump station; 21. Pump group; 211. Water intake pipe; 212. Water intake valve; 213. Sewage collection elbow joint; 214. Water pump; 215. Reversing valve; 22. Reservoir; 23. Inspection port; 24. Distribution cabinet; 3. Self-draining culvert; 4. Outlet pool; 5. Irrigation system; 51. Irrigation pool; 52. Water limiting gate; 521. Door plate; 522. Threaded sleeve; 523. Screw rod; 53. Irrigation channel; 531. Water diversion gate; 54. Irrigation water supply pipe; 6. Drainage culvert; 7. Drainage trough; 71. Drainage gate; 8. Protection platform; 9. Outer river slope protection. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. The following description of at least one exemplary embodiment is actually only illustrative and is by no means intended to limit the present invention and its application or use. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0019] Reference Figure 1-6 , a drainage station with irrigation function, including an inner river slope protection 1 and an outer river slope protection 9, a wet drainage system is arranged on one side of the inner river slope protection 1, and the wet drainage system is connected with a drainage system and an irrigation system 5, the wet drainage system is used to pump rainwater and sewage accumulated in low-lying areas to a drainage outlet at a high place to achieve preliminary drainage, the drainage system is used to transport rainwater and sewage discharged by the wet drainage system to an outlet or a treatment facility, and the irrigation system 5 is used to transport rainwater and sewage discharged by the wet drainage system to farmland areas that need irrigation. When urban waterlogging disasters occur, rainwater gathers in the inner river of the city, and the wet drainage system extracts water from the inner river and discharges it into the outer river through the drainage system. If the drainage system still cannot meet the drainage work by discharging the accumulated water into the outer river, the water can be discharged into the farmland with the help of the irrigation system 5 to alleviate urban waterlogging. According to the environment, dams can be built on the edge of the farmland to limit floods. In areas with heavy precipitation, beach cultivated land can be set up according to local conditions to reduce the impact of floods; like Figure 1 , Figure 3 and Figure 5 As shown, the wet drainage system includes a pump station 2 and a water outlet pool 4. A pump group 21 and a monitoring module are provided in the pump station 2. The monitoring module is used to monitor the internal environment of the pump station 2 and the working state of the pump group 21. A power distribution cabinet 24 for controlling the operation of the pump group 21 is provided in the pump station 2. Waterproof and moisture-proof treatment is required. The monitoring module is convenient for staff to check in time to avoid equipment wading, fire or water leakage accidents. A reservoir 22 is opened on the inner side of the pump station 2 near the inner river slope 1. A maintenance port 23 is provided on one side of the reservoir 22 to facilitate staff to go into the water and clean and maintain the reservoir 22. The reservoir 22 is connected to the inner river. A protective net 11 corresponding to the inner river is provided on one side of the reservoir 22 to block fish, shrimp, aquatic plants or garbage in the inner river to prevent debris from entering the reservoir 22; The pump group 21 includes a water-drawing pipe 211, a water-pumping pipe and a water pump 214. One end of the water-drawing pipe 211 extends into the water reservoir 22 for extracting river water. A sewage-collecting elbow joint 213 is provided between the water-drawing pipe 211 and the water-pumping pipe. An interception net can be provided inside to intercept debris. The sewage-collecting elbow joint 213 is detachable to facilitate regular cleaning of debris to avoid clogging the water-pumping pipe and the water pump 214. A water-drawing valve 212 is provided on the water-drawing pipe 211 to control the on-off of the water-drawing pipe 211. A water pump 214 is provided on the water-pumping pipe to extract river water. One end of the outlet of the water-pumping pipe extends above the water outlet pool 4 to discharge the river water into the water outlet pool 4. A reversing valve 215 is provided on the water-pumping pipe on one side of the water outlet of some water pumps 214 for directly supplying water to the irrigation system 5. A water outlet gate is provided in the water outlet pool 4 for controlling the drainage volume and drainage path. A self-draining culvert 3 is connected to one side of the water outlet pool 4. The self-draining culvert 3 runs through the inner river slope protection 1 to achieve the natural discharge of the inner river water without forced intervention of the water pump 214. At the same time, when the liquid level in the water outlet pool 4 is too high, it can be directly discharged back to the inner river through the self-draining culvert 3 to avoid overflow of the water outlet pool 4. In addition, when the water volume of the outer river is sufficient and the inner river water level is lower than that of the outer river, the water outlet gate corresponding to the self-draining culvert 3 can be opened to guide the outer river water in the water outlet pool 4 into the inner river with the help of the self-draining culvert 3 to adjust the water level. The drainage system includes a drainage culvert 6 and a drainage trough 7. A drainage gate 71 is provided on the drainage trough 7. The drainage culvert 6 connects the outlet pool 4 and the drainage trough 7. The drainage trough 7 is arranged corresponding to the outer river slope protection 9. The drainage culvert 6 discharges the accumulated water in the outlet pool 4 into the outer river through the drainage trough 7. A protective platform 8 is provided between the drainage trough 7 and the outer river slope protection 9, on which monitoring equipment is installed. A square trough adapted to the drainage trough 7 is provided on the protective platform 8, in which a hydroelectric generator may be provided to convert the impact force of the water flow in the drainage trough 7 into electrical energy, thereby recovering energy and reducing the energy consumption of the pumping station 2. An eight-shaped trough is provided on the outer river slope protection 9 to buffer the water flow, and a concrete bottom protection is provided at the bottom of the square trough and the eight-shaped trough, and a sand and gravel cushion layer is laid on the upper side of the concrete bottom protection to prevent the water flow from rushing away the river bank soil and causing soil erosion.

[0020] The irrigation system 5 includes an irrigation culvert, an irrigation pool 51, an irrigation canal 53 and an irrigation water supply pipe 54. The reversing valve 215 is connected to the irrigation water supply pipe 54. The inland river water is directly used for irrigation through the pump group 21. The irrigation culvert connects the water outlet pool 4 and the irrigation pool 51. A water limiting gate 52 is arranged between the irrigation pool 51 and the irrigation canal 53. The water limiting gate 52 includes a door plate 521, a threaded sleeve 522 and a screw rod 523. A mounting seat is arranged on the side wall of the irrigation pool 51. The threaded sleeve 522 is rotatably connected to the mounting seat. The screw rod 523 is fixedly connected to the door plate 521. The threaded sleeve 522 and the screw rod 523 are connected through a spiral pair. By rotating the threaded sleeve 522, the height of the screw rod 523 is adjusted to change the height of the door plate 521. The water outlet of the water limiting gate 52 is located above the door plate 521. The height of the door plate 521 is adjusted corresponding to the liquid level to limit the flow of water and prevent the water in the irrigation canal 53 from flowing back into the irrigation pool 51. The irrigation channel 53 is arranged in a stepped manner, and the bottom height decreases step by step, and the irrigation water flows accordingly. The irrigation water supply pipe 54 is connected to the inner side of the irrigation channel 53, and the water pumped by the pump group 21 is sent into the irrigation channel 53. The irrigation water supply pipe 54 is provided with a control valve for controlling the water flow. The irrigation channel 53 is provided with a water diversion gate 531 for delivering irrigation water to various parts of the farmland.

[0021] There are two groups of water outlet gates, which are respectively set corresponding to the self-draining culvert 3 and the irrigation culvert. A water level monitor is provided in the water outlet pool 4. The self-draining culvert 3 and the irrigation culvert are located at the lower part of the water outlet pool 4. The self-draining culvert 3 and the irrigation culvert are controlled by the water outlet gates.

[0022] During normal drainage: Sewage or rainwater in the city gathers into the inner river, the water level of the inner river rises, the outlet gate corresponding to the self-draining culvert 3 opens, the inner river water enters the outlet pool 4 through the self-draining culvert 3, the drainage gate 71 on the drainage trough 7 opens, the accumulated water flows out through the drainage culvert 6, and flows into the outer river through the drainage trough 7 until the water levels of the inner river and the outer river are the same; When draining water with a small amount of water: The self-draining culvert 3 cannot meet the drainage needs of the inner river. The water level of the inner river rises to the warning line. The outlet gate corresponding to the self-draining culvert 3 is closed, and the pump group 21 works. The water pump 214 draws water from the reservoir 22 through the water pumping pipe 211. The reservoir 22 is connected to the inner river. The water pump 214 pumps the water from the inner river to the outlet pool 4. The water level rises, and the accumulated water flows and is discharged into the outer river through the drainage trough 7. When large amounts of water are discharged: When the drainage system works normally but still cannot meet the drainage demand, the irrigation system 5 is used for drainage. The outlet gate corresponding to the irrigation culvert is opened, and the accumulated water in the outlet pool 4 flows into the irrigation pool 51. The door plate 521 on the water limiting gate 52 drops, and the accumulated water in the irrigation pool 51 is discharged through the irrigation channel 53, so as to share the drainage pressure with the help of farmland. When small-volume irrigation: The water pump 214 corresponding to the irrigation water supply pipe 54 works, the reversing valve 215 switches the water outlet, connects the pump water pipe with the irrigation water supply pipe 54, and directly sends the river water into the irrigation channel 53 through the irrigation water supply pipe 54. The door plate 521 is lifted to prevent water from flowing back into the irrigation pool 51, and the water diversion gate 531 is opened to send the irrigation water to the farmland. When irrigating with large discharge volume: The drainage gate 71 is closed, and the outlet gate corresponding to the drainage culvert 3 is closed. The water pump 214 is turned on according to the irrigation volume to send the water in the reservoir 22 to the outlet pool 4. The liquid level rises, and the outlet gate corresponding to the irrigation culvert is opened. The water flows into the irrigation pool 51, and the threaded sleeve 522 is rotated to lower the door plate 521. The water level in the irrigation pool 51 exceeds the door plate 521 and flows into the irrigation channel 53 for irrigation water supply.

[0023] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

[0024] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.

[0025] Unless otherwise specifically stated, the relative arrangement of the parts and steps described in these embodiments, numerical expressions and numerical values ​​do not limit the scope of the present invention. At the same time, it should be understood that, for ease of description, the sizes of the various parts shown in the accompanying drawings are not drawn according to the actual proportional relationship. The technology, method and equipment known to ordinary technicians in the relevant field may not be discussed in detail, but in appropriate cases, the technology, method and equipment should be regarded as a part of the authorization specification. In all examples shown and discussed here, any specific value should be interpreted as being merely exemplary, rather than as a limitation. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters represent similar items in the following drawings, so once a certain item is defined in an accompanying drawing, it does not need to be further discussed in subsequent drawings.

Claims

1. A drainage station with irrigation function, comprising an inner river slope protection (1) and an outer river slope protection (9), characterized in that: A wet drainage system is arranged on one side of the inner river slope protection (1), and the wet drainage system is used to pump rainwater and sewage accumulated in the low-lying area to a drainage outlet at a high place to achieve preliminary drainage. The wet drainage system comprises a pump station (2) and a water outlet pool (4), wherein a pump group (21) and a monitoring module are arranged in the pump station (2), and a water outlet gate is arranged in the water outlet pool (4). A self-draining culvert (3) is connected to one side of the water outlet pool (4), and the self-draining culvert (3) runs through the inner river slope protection (1); The wet drainage system is connected to a drainage system and an irrigation system (5). The drainage system is used to transport rainwater and sewage discharged from the wet drainage system to a discharge outlet or a treatment facility. The drainage system comprises a drainage culvert (6) and a drainage trough (7). The drainage trough (7) is provided with a drainage gate (71). The drainage culvert (6) is connected to the water outlet pool (4) and the drainage trough (7). The drainage trough (7) is arranged corresponding to the outer river slope protection (9). The irrigation system (5) is used to transport rainwater and sewage discharged from the wet drainage system to farmland areas that need irrigation. The irrigation system (5) comprises an irrigation culvert, an irrigation pool (51), an irrigation channel (53) and an irrigation water supply pipe (54). The irrigation culvert connects the water outlet pool (4) and the irrigation pool (51). A water limiting gate (52) is provided between the irrigation pool (51) and the irrigation channel (53). A water diversion gate (531) is provided on the irrigation channel (53).

2. A drainage station with irrigation function according to claim 1, characterized in that: A water reservoir (22) is provided on the inner side of the pump station (2) near the inner river slope protection (1), and the pump group (21) includes a water suction pipe (211), a water pump pipe and a water pump (214); One end of the water-drawing pipe (211) extends into the water reservoir (22); a sewage-collecting elbow joint (213) is provided between the water-drawing pipe (211) and the water-pumping pipe; and a water-drawing valve (212) is provided on the water-drawing pipe (211).

3. A drainage station with irrigation function according to claim 2, characterized in that: A water pump (214) is arranged on the water pump pipe, one end of the water pump pipe outlet extends to above the water outlet pool (4), a reversing valve (215) is arranged on the water pump pipe on one side of the water pump (214) outlet, and the reversing valve (215) is connected to the irrigation water supply pipe (54).

4. A drainage station with irrigation function according to claim 1, characterized in that: The water outlet gates are provided in two groups, which are respectively arranged corresponding to the self-draining culvert (3) and the irrigation culvert. A water level monitor is provided in the water outlet pool (4). The self-draining culvert (3) and the irrigation culvert are located at the lower part of the water outlet pool (4).

5. The drainage station with irrigation function according to claim 1, characterized in that: A protective platform (8) is provided between the drainage trough (7) and the outer river slope protection (9); a square groove matching the drainage trough (7) is provided on the protective platform (8); an eight-shaped groove is provided on the outer river slope protection (9); a concrete bottom protection is provided at the bottom of the square groove and the eight-shaped groove; and a sand and gravel cushion layer is laid on the upper side of the concrete bottom protection.

6. A drainage station with irrigation function according to claim 5, characterized in that: A monitoring device is installed on the protection platform (8), and a hydroelectric generator is arranged in the square trough.

7. The drainage station with irrigation function according to claim 1, characterized in that: The water limiting gate (52) comprises a door plate (521), a threaded sleeve (522) and a screw rod (523); a mounting seat is provided on a side wall of the irrigation pool (51); the threaded sleeve (522) and the mounting seat are rotatably connected; the screw rod (523) and the door plate (521) are fixedly connected; and the threaded sleeve (522) and the screw rod (523) are connected via a screw pair.

8. A drainage station with irrigation function according to claim 7, characterized in that: The irrigation channel (53) is arranged in a stepped manner, the irrigation water supply pipe (54) is communicated with the inner side of the irrigation channel (53), a control valve is provided on the irrigation water supply pipe (54), and the water outlet of the water limiting gate (52) is located above the gate plate (521).

Images