Integrated pump station for drainage and irrigation

Abstract

The utility model belongs to the technical field of water conservancy, and particularly relates to a flood drainage and irrigation integrated pump station. The water outlet pool is provided with a drainage port; a submersible pump is arranged in the water collecting tank and can discharge water in the water collecting tank into the water guiding tank; the flood drainage pump station is provided with a water collecting chamber, a water collecting gallery, a flood drainage pump room and a flood drainage pump, the water collecting chamber is in on-off connection with the water guiding pool, the water collecting chamber is in on-off connection with the water collecting gallery, the flood drainage pump is arranged in the flood drainage pump room, an inlet of the flood drainage pump extends into the water collecting chamber below, and an outlet of the flood drainage pump is connected with a flood drainage pipe extending to the water outlet pool; the water collecting gallery is communicated with the water collecting tank; the irrigation pump station is provided with an irrigation pump, an inlet of the irrigation pump is connected with a water pumping pipe extending to the water outlet pool, and an outlet of the irrigation pump is connected with an irrigation pipe connected with the irrigation pipe network. According to the utility model, the flood drainage pump station is effectively utilized to reserve water resources for irrigation during flood drainage, so that temporary irrigation water is provided when the external water source is insufficient, and the applicability of the pump station is greatly enhanced.

Description

Technical Field

[0001] The utility model belongs to the technical field of water conservancy facilities, and particularly relates to a comprehensive drainage and irrigation pumping station. Background Art

[0002] In recent years, the frequent occurrence of flood disasters has had a serious impact on many major grain-producing areas. Therefore, more water conservancy facilities should be built in the main grain-producing areas where there are rivers passing by to reduce the harm caused by floods.

[0003] The patent with the publication number CN 215053497 U discloses a dual-purpose pumping station for irrigation and drainage, and specifically discloses that "operating principle: during irrigation, open the intake sluice 4, start the irrigation unit, and the upstream water source flows through the intake sluice 4 → the culvert under the canal 3 → the forebay 2 → the pumping station unit 1 → the outlet pipe 6 → the irrigation outlet pond 7 → the irrigation canal in sequence. During drainage, open the intake sluice 4, start the drainage unit, and the upstream water source flows through the intake sluice 4 → the culvert under the canal 3 → the forebay 2 → the pumping station unit 1 → the lateral pressure water tank → the connecting section 8 → the drainage sluice 9 → the drainage river in sequence; during flood control, the drainage sluice 9 is closed."

[0004] It can be seen that whether it is drainage or irrigation, the intake sluice needs to be controlled. That is to say, the water used for irrigation actually comes from the water source. This means that once the water source is short of water, the irrigation function will be lost. Content of the Utility Model

[0005] The purpose of the utility model is to provide a comprehensive drainage and irrigation pumping station, which can not only play the functions of drainage and irrigation, but also the water required for irrigation can come from the stored water after the occurrence of floods, thereby avoiding the situation of being unable to irrigate due to the lack of water in the external water source.

[0006] To achieve the above object, the utility model provides the following technical solutions: A comprehensive drainage and irrigation pumping station, comprising:

[0007] A water inlet pond, which can collect accumulated water;

[0008] An outlet pond, which is provided with a drainage outlet;

[0009] A sump, in which a submersible pump is arranged, and the submersible pump can drain the water in the pond into the water inlet pond;

[0010] A drainage pumping station, which is provided with a water collection chamber, a water collection corridor, a drainage pump house and a drainage pump. The water collection chamber is in a switchable connection with the water inlet pond, the water collection chamber is in a switchable connection with the water collection corridor, the drainage pump is arranged in the drainage pump house, its inlet extends to the water collection chamber below, and its outlet is connected to a drainage pipe extending to the outlet pond; the water collection corridor is communicated with the sump;

[0011] Irrigation pumping station, the irrigation pumping station is provided with an irrigation pump, the inlet of the irrigation pump is connected to a water suction pipe extending to the water outlet pool, and its outlet is connected to an irrigation pipe connected to the irrigation pipe network.

[0012] Furthermore, the drainage pumping station has at least two pumping station units, each pumping station unit has a water collection chamber and a water collection corridor, a drainage pump is arranged in each water collection chamber, and adjacent two water collection corridors are communicated through a corridor passage; the water in adjacent two water collection chambers can be discharged into the adjacent water collection chamber through a pressure equalizing pipeline system arranged in the water collection corridor and the corridor passage.

[0013] Furthermore, the pressure equalizing pipeline system includes a pressure equalizing pipe and a connecting pipe. The pressure equalizing pipe is connected to the water collection chamber and the water collection corridor within the same pumping station unit. The connecting pipe is arranged in the corridor passage and is connected to the water inlet side of the pressure equalizing pipes in the water collection corridors on both sides. A corridor valve is arranged on the water outlet side of the pressure equalizing pipe, and a connecting valve is arranged on the connecting pipe.

[0014] Furthermore, the water outlet pool further includes a buffer pool and a storage pool, and a one-way pipe capable of one-way connection is arranged between the two; the buffer pool is provided with the drainage outlet and a drainage baffle at the drainage outlet. A floating ball is arranged in the storage pool, and the water suction pipe extends into the storage pool; the floating ball is connected to the drainage baffle through a traction rope;

[0015] After the water level of the buffer pool exceeds the water level of the storage pool, the one-way pipe opens; after the water level of the buffer pool is lower than the water level of the storage pool, the one-way pipe closes;

[0016] After the water level of the storage pool exceeds the preset water level, the floating ball drives the drainage baffle to rise and opens the drainage outlet.

[0017] Furthermore, threading rings for the traction rope to pass through are arranged on the pool walls of the buffer pool and the storage pool.

[0018] Furthermore, a first liquid level detector is arranged on the water-facing side of the gate of the drainage pumping station, and the installation height of the first liquid level detector is greater than the highest elevation of the water collection chamber;

[0019] A second liquid level detector is arranged in the water collection chamber, and the installation height of the second liquid level detector is less than the installation height of the water inlet of the drainage pump.

[0020] Furthermore, a third liquid level detector is arranged in the buffer pool, and the installation height of the third liquid level detector is greater than the installation height of the water inlet of the water suction pipe, and the height difference is 10 - 20 cm.

[0021] Further, a fourth liquid level detector is arranged in the sump, and the installation height of the fourth liquid level detector is greater than the installation height of the inlet of the submersible pump.

[0022] Further, it further includes a lubrication and cooling system, and the lubrication and cooling system includes a water tank and a water delivery pipeline connecting the water tank. The water delivery pipeline lubricates the drainage pump through it and cools the drainage pump motor through it.

[0023] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0024] 1. The comprehensive pumping station in the present utility model simultaneously has the functions of drainage and irrigation, and can be applied to the main grain-producing areas where rivers flow through; effectively utilize the drainage pumping station to reserve water resources for irrigation while draining water, so as to provide temporary irrigation water when the external water source is insufficient, greatly enhancing the applicability of the pumping station.

[0025] 2. The drainage pumping station in the present utility model realizes the automatic pressure compensation water supply regulation after the maintenance operation of a single pumping station unit through multiple pumping station units, ensuring the normal opening of the maintenance gate.

[0026] 3. The reservoir in the present utility model controls the opening and closing of the drainage outlet in the buffer pool by using a floating ball, and at the same time realizes the switching of the water storage and drainage functions of the two pool bodies according to the water level difference by means of the one-way conduction operation of the one-way pipe. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a structural plan view of a preferred embodiment of the present utility model;

[0028] Figure 2 is Figure 1 a structural cross-sectional view of the drainage pumping station side in the shown embodiment;

[0029] Figure 3 is Figure 1 a structural plan view of the drainage pumping station side in the shown embodiment;

[0030] Figure 4 is Figure 3 a structural cross-sectional view in the A-A direction in

[0031] Figure 5 is Figure 3 a structural cross-sectional view in the B-B direction in

[0032] Figure 6 is Figure 1 a structural cross-sectional view of the irrigation pumping station side in the shown embodiment;

[0033] Figure 7 is Figure 1 a structural cross-sectional view of the water outlet pool in the drainage state in the shown embodiment;

[0034] Figure 8 is Figure 1 a schematic structural diagram of the lubrication and cooling system in the illustrated embodiment.

[0035] Reference numerals: 1, intake pool; 2, outlet pool; 3, buffer pool; 4, reservoir; 5, partition wall; 6, one-way pipe; 7, drainage outlet; 8, drainage baffle; 9, chute; 10, floating ball; 11, towing rope; 12, threading ring; 13, sump; 14, submersible pump; 15, drainage pumping station; 16, pumping station unit; 17, water collection chamber; 18, gate; 19, water collection corridor; 20, corridor passage; 21, equalizing pipeline system; 22, equalizing pipe; 23, connecting pipe; 24, corridor valve; 25, connecting valve; 26, drainage pump house; 27, drainage pump; 28, drainage pipe; 29, irrigation pumping station; 30, irrigation pump; 31, suction pipe; 32, irrigation pipe; 33, first liquid level detector; 34, second liquid level detector; 35, third liquid level detector; 36, fourth liquid level detector; 37, lubrication and cooling system; 38, water tank; 39, water delivery pipeline; 40, manhole. Specific embodiments

[0036] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0037] As Figures 1 to 8 shown, the present invention provides a comprehensive drainage and irrigation pumping station, including an intake pool 1, an outlet pool 2, a sump 13, a drainage pumping station 15 and an irrigation pumping station 29.

[0038] The intake pool 1 serves as a forebay, connecting to low-lying areas or farmland ditches for collecting floodwater.

[0039] The outlet pool 2 serves as a rear pool, connecting to a river for collecting floodwater as an irrigation standby water source. The outlet pool 2 is provided with a drainage outlet 7, and the drainage outlet 7 is connected to a drainage culvert, and the drainage culvert leads to the river, so as to drain the accumulated water into the river.

[0040] A submersible pump 14 is arranged in the sump 13 for collecting the accumulated water discharged from the water collection chamber 17 of the drainage pumping station 15 during the maintenance of the drainage pumping station 15. The accumulated water in the sump 13 can be drained into the intake pool 1 through the submersible pump 14.

[0041] The drainage pump station 15 is provided with a water collection chamber 17, a water collection corridor 19, a drainage pump house 26 and a drainage pump 27. A gate 18 is provided between the water collection chamber 17 and the water diversion pool 1, thereby forming an on-off connection. When the gate 18 is lowered, the waterway between the water collection chamber 17 and the water diversion pool 1 is cut off, so that the water collection chamber 17 forms a closed space.

[0042] A pressure-equalizing pipe system 21 is provided between the water collecting chamber 17 and the water collecting gallery 19, thereby forming an on-off connection. The water collecting gallery 19 is connected to the water collecting pool 13. That is to say, when the pressure-equalizing pipe system 21 is opened, the accumulated water in the water collecting chamber 17 is discharged into the water collecting gallery 19, and then discharged into the water collecting pool 13. Since the capacity of the water collecting pool 13 is much larger than the capacity of the water collecting chamber 17, the water collecting chamber 17 will be completely emptied, so that maintenance personnel can enter through the manhole 40 at the top of the water collecting chamber 17 to perform maintenance work. When the pressure-equalizing pipe system 21 is closed, the waterway between the water collecting chamber 17 and the water collecting gallery 19 is cut off.

[0043] The drainage pump 27 is arranged in the drainage pump room 26, with its inlet extending to the water collection chamber 17 below, and its outlet connected to the drainage pipe 28 extending to the outlet pool 2; so that after a flood occurs, the water in the water collection chamber 17 is discharged into the outlet pool 2.

[0044] The irrigation pump station 29 is provided with an irrigation pump 30 , the inlet of the irrigation pump 30 is connected to a water pumping pipe 31 extending to the water outlet pool 2 , and the outlet of the irrigation pump 30 is connected to an irrigation pipe 32 connected to an irrigation pipe network.

[0045] As a preferred example, in order to improve the drainage capacity, multiple groups of drainage pumps 27 are usually set, and each unit can be repaired separately. Specifically, the drainage pump station 15 has three pump station units 16 arranged side by side. Each pump station unit 16 has a water collection chamber 17 and a water collection gallery 19, and a drainage pump 27 is arranged in each water collection chamber 17. Two adjacent water collection galleries 19 are connected through the gallery channel 20. In other words, all water collection galleries 19 are connected. The water in two adjacent water collection chambers 17 can be discharged into the adjacent water collection chamber 17 through the equal pressure pipe system 21 arranged in the water collection gallery 19 and the gallery channel 20.

[0046] As a preferred example, the horizontal pressure pipeline system 21 includes a horizontal pressure pipe 22 and a connecting pipe 23. The horizontal pressure pipe 22 connects the water collection chamber 17 and the water collection corridor 19 within the same pumping station unit 16. The connecting pipe 23 is arranged in the corridor passage 20 and connects the water inlet sides of the horizontal pressure pipes 22 in the water collection corridors 19 on both sides. A corridor valve 24 is arranged on the water outlet side of the horizontal pressure pipe 22, and a connecting valve 25 is arranged on the connecting pipe 23. For two adjacent pumping station units 16, when the connecting valve 25 is closed and the corridor valve 24 is opened, the accumulated water in the two water collection chambers 17 can enter the water collection corridor 19 through the horizontal pressure pipe 22 and then be discharged into the water collection pool 13 together. When the connecting valve 25 is opened and the corridor valve 24 is closed, the accumulated water in one of the water collection chambers 17 can enter the other water collection chamber 17 through the horizontal pressure pipe 22 and the connecting pipe 23. The function of this is to compensate for the horizontal pressure. Specifically, when one of the water collection chambers 17 is overhauled and completed, replenishing water into this water collection chamber 17 can reduce the pressure difference on both sides of the gate 18, thereby realizing the opening of the gate 18.

[0047] For a traditional comprehensive drainage and irrigation pumping station, the water outlet pool 2 still has to undertake the water storage function after the drainage is completed, so as to enable the irrigation pumping station 29 to play its role. Therefore, when the drainage outlet 7 of the water outlet pool 2 is set at a low position, the opening and closing of the drainage outlet 7 are usually controlled by the gate 18 to prevent the water in the water outlet pool 2 from being discharged into the river. However, when setting the gate 18 at the drainage outlet 7, the water stop and sealing need to be considered, so the installation difficulty is increased. In addition, manual control is not conducive to the linkage control of the entire pumping station, while electric control requires additional wiring. There may be inconveniences in both installation and use. For this reason, the utility model divides the water outlet pool 2 into two pool bodies to better control the drainage timing. As Figure 6 and Figure 7 shown, as a preferred example, the water outlet pool 2 further includes a buffer pool 3 and a water storage pool 4, which are separated by a partition wall 5. A one-way pipe 6 that can communicate unidirectionally is arranged at a position near the bottom of the partition wall 5. The one-way conduction function of the one-way pipe 6 is realized according to the water pressure difference on both sides. This is prior art, so it will not be elaborated here. The buffer pool 3 is provided with a drainage outlet 7 and a drainage baffle 8 at the drainage outlet 7. A floating ball 10 is arranged in the water storage pool 4, and a water extraction pipe 31 extends into the water storage pool 4. The floating ball 10 is connected to the drainage baffle 8 through a traction rope 11. Sliding grooves 9 are arranged on the pool walls on both sides of the drainage outlet 7 for slidingly installing the drainage baffle 8. The buffer pool 3 and the water storage pool 4 are not connected under certain circumstances, and the buffer pool 3 is not used for storing water. Therefore, the drainage baffle 8 at the drainage outlet 7 does not need to be provided with a water stop and sealing structure, reducing the installation difficulty. That is to say, the drainage baffle 8 does not need to completely block the drainage outlet 7, because when there is an internal flood, the water volume is large, most of the water in the buffer pool 3 will quickly drain into the water storage pool 4, and a small part of the water will flow into the drainage outlet 7, which does not affect the water storage of the water storage pool 4.

[0048] After the water level of the buffer pool 3 exceeds the water level of the storage pool 4, the one-way pipe 6 opens. Similarly, after the water level of the buffer pool 3 is lower than the water level of the storage pool 4, the one-way pipe 6 closes. When the water level of the storage pool 4 exceeds the preset water level, the floating ball 10 drives the drainage baffle 8 to rise and opens the drainage outlet 7. During the process of the drainage outlet 7 being gradually opened, the flow rate of the water flowing from the buffer pool 3 into the drainage outlet 7 gradually increases. Therefore, a large amount of water in the buffer pool 3 starts to be discharged into the river, causing its water level to drop. At this time, the one-way pipe 6 closes, and the water in the storage pool 4 does not flow back into the buffer pool 3, thus being used for irrigation.

[0049] In order to realize the opening and closing control of the drainage baffle 8 by the floating ball 10, threading rings 12 for the traction rope 11 to pass through are provided on the pool walls of the buffer pool 3 and the storage pool 4. The threading rings 12 are arranged in two highs and two lows. The two high threading rings 12 are respectively located on the pool walls of the buffer pool 3 and the storage pool 4, and the two low threading rings 12 are located in the storage pool 4. When the floating ball 10 rises, it will drive the drainage baffle 8 to rise. On the contrary, when the floating ball 10 drops, the drainage baffle 8 drops. The rising height, weight, and buoyancy of both can be determined according to the actual situation. This is a conventional method, so it will not be elaborated.

[0050] As a preferred example, a first liquid level detector 33 is provided on the water-facing side of the gate 18 of the drainage pumping station 15. The installation height of the first liquid level detector 33 is greater than the highest elevation of the water collection chamber 17. A second liquid level detector 34 is provided in the water collection chamber 17. The installation height of the second liquid level detector 34 is less than the installation height of the water inlet of the drainage pump 27. A third liquid level detector 35 is provided in the storage pool 4. The installation height of the third liquid level detector 35 is greater than the installation height of the inlet of the water extraction pipe 31 of the irrigation pump 30 in the water outlet pool 2, and the height difference is 10 - 20 cm. A fourth liquid level detector 36 is provided in the sump 13. The installation height of the fourth liquid level detector 36 is greater than the installation height of the inlet of the submersible pump 14. The purpose of setting the liquid level detectors is to detect the water level, so as to determine the opening or closing timing of the pumps, which helps to realize the overall linkage control.

[0051] As Figure 8 shown, the present utility model further includes a lubrication and cooling system 37. The lubrication and cooling system includes a water tank 38 and a water delivery pipeline 39 connecting the water tank 38. The water delivery pipeline 39 lubricates the drainage pump 27 through it and cools the drainage pump motor through it. The high-level water tank 38 is supplied with water through the tap water network or groundwater, and then is distributed to the corresponding pumps and motors through pipelines.

[0052] In the present utility model, the drainage pump 27 is selected as a vertical axial flow pump, the irrigation pump 30 is selected as a strong self-priming centrifugal pump, and the submersible pump 14 is selected as a submersible sewage pump.

[0053] The working principle and process of the present utility model

[0054] After waterlogging occurs, the accumulated water in the low-lying area or surrounding farmland flows into the water intake pool 1 through the ditch. When the first liquid level detector 33 detects that the water level in the water intake pool 1 rises to the drainage level, the drainage pump 27 starts to drain the waterlogged water into the water outlet pool 2. After the waterlogged water enters the water outlet pool 2, it first enters the buffer pool 3. Since the water volume is large at this time, its water level rises rapidly and flows into the storage pool 4 through the one-way pipe 6. When the water level in the storage pool 4 rises to make the floating ball 10 rise to the preset height, the drainage baffle 8 is lifted to open the drainage port 7. At this time, the waterlogged water in the buffer pool 3 is quickly drained into the river through the drainage port 7 to achieve drainage. When the water volume of the waterlogged water entering the buffer pool 3 decreases, the water level of the buffer pool 3 will drop at this time, so that the one-way pipe 6 is closed and the storage in the storage pool 4 is completed. After the drainage is completed, the remaining water in the storage pool 4 can be used to irrigate the farmland through the irrigation pump 30. When the third liquid level detector 35 detects that the water level drops to the lowest level, the irrigation pump 30 will stop working.

[0055] When it is necessary to repair one of the pumping station units 16, lower its gate 18. Since there is still accumulated water in the water collection chamber 17, open the corridor valve 24 at this time. The accumulated water in the water collection chamber 17 enters the water collection corridor 19 through the pressure equalizing pipe 22 and then is discharged into the water collection pool 13. When the fourth liquid level detector 36 detects that the water level drops to the maintenance level, the staff can enter the water collection chamber 17 through the manhole 40 to repair the equipment. After the repair is completed, the personnel withdraw. Open the connection valve 25 of the connecting pipe 23 of the adjacent pumping station unit 16 and close the corridor valve 24 on the two pressure equalizing pipes 22. At this time, the water in the water collection chamber 17 of the adjacent pumping station unit 16 will flow into the water collection chamber 17 of the current pumping station unit 16, so that the pressure difference on both sides of the gate 18 is reduced and it meets the opening condition.

[0056] The details not described in the present utility model are all well-known technologies to those skilled in the art.

[0057] It should be noted that the above specific embodiments are only used to illustrate the technical solutions of the present utility model and not to limit them. Although the present utility model has been described in detail with reference to the embodiments, those of ordinary skill in the art should understand that the technical solutions of the present utility model can be modified and equivalently replaced without departing from the spirit and scope of the technical solutions of the present utility model, and they should all be covered within the scope of the claims of the present utility model.

Claims

1. An integrated drainage and irrigation pumping station, characterized in that: Comprising: A water intake pool (1) which can collect accumulated water; A water outlet pool (2) provided with a drainage outlet (7); A sump (13) with a submersible pump (14) installed therein, and the submersible pump (14) can drain the water in the pool into the water intake pool (1); A drainage pumping station (15) having a water collection chamber (17), a water collection corridor (19), a drainage pump house (26) and a drainage pump (27). The water collection chamber (17) is in a connectable and disconnectable connection with the water intake pool (1), the water collection chamber (17) is in a connectable and disconnectable connection with the water collection corridor (19), the drainage pump (27) is arranged in the drainage pump house (26), its inlet extends into the lower water collection chamber (17), and its outlet is connected to a drainage pipe (28) extending to the water outlet pool (2); the water collection corridor (19) is communicated with the sump (13); An irrigation pumping station (29) having an irrigation pump (30), the inlet of the irrigation pump (30) is connected and extended to a water extraction pipe (31) of the water outlet pool (2), and its outlet is connected to an irrigation pipe (32) connected to an irrigation pipe network (32).

2. The integrated pumping station for drainage and irrigation according to claim 1, characterized in that: The drainage pumping station (15) has at least two pumping station units (16), each pumping station unit (16) has a water collection chamber (17) and a water collection corridor (19), a drainage pump (27) is arranged in each water collection chamber (17), and adjacent two water collection corridors (19) are communicated through a corridor passage (20); the water in adjacent two water collection chambers (17) can be drained into the adjacent water collection chamber (17) through a pressure equalizing pipeline system (21) arranged in the water collection corridor (19) and the corridor passage (20).

3. The integrated pumping station for drainage and irrigation according to claim 2, characterized in that: The pressure equalizing pipeline system (21) includes a pressure equalizing pipe (22) and a connecting pipe (23). The pressure equalizing pipe (22) connects the water collection chamber (17) and the water collection corridor (19) within the same pumping station unit (16), the connecting pipe (23) is arranged in the corridor passage (20) and is connected to the water inlet side of the pressure equalizing pipes (22) in the water collection corridors (19) on both sides, a corridor valve (24) is arranged on the water outlet side of the pressure equalizing pipe (22), and a connecting valve (25) is arranged on the connecting pipe (23).

4. The integrated pumping station for drainage and irrigation according to claim 3, characterized in that: The water outlet pool (2) further includes a buffer pool (3) and a reservoir (4), and a one-way pipe (6) capable of one-way connection is arranged therebetween; the buffer pool (3) is provided with the drainage outlet (7) and a drainage baffle (8) located at the drainage outlet (7), a floating ball (10) is arranged in the reservoir (4), and the water extraction pipe (31) extends into the reservoir (4); the floating ball (10) is connected to the drainage baffle (8) through a traction rope (11); After the water level of the buffer pool (3) exceeds the water level of the reservoir (4), the one-way pipe (6) opens; after the water level of the buffer pool (3) is lower than the water level of the reservoir (4), the one-way pipe (6) closes; After the water level of the reservoir (4) exceeds the preset water level, the float (10) drives the drainage baffle (8) to rise and open the drainage outlet (7).

5. The integrated pumping station for drainage and irrigation according to claim 4, characterized in that: Threading rings (12) through which the towing rope (11) passes are provided on the pool walls of the buffer pool (3) and the reservoir (4).

6. The integrated pumping station for drainage and irrigation according to claim 4, characterized in that: A first liquid level detector (33) is provided on the water-facing side of the gate (18) of the drainage pumping station (15), and the installation height of the first liquid level detector (33) is greater than the highest elevation of the water collection chamber (17); A second liquid level detector (34) is provided in the water collection chamber (17), and the installation height of the second liquid level detector (34) is less than the installation height of the water inlet of the drainage pump (27).

7. The integrated pumping station for drainage and irrigation according to claim 4, characterized in that: A third liquid level detector (35) is provided in the buffer pool (3), and the installation height of the third liquid level detector (35) is greater than the installation height of the inlet of the water extraction pipe (31), and the height difference is 10 - 20 cm.

8. The integrated pumping station for drainage and irrigation according to claim 4, characterized in that: A fourth liquid level detector (36) is provided in the water collection pool (13), and the installation height of the fourth liquid level detector (36) is greater than the installation height of the inlet of the submersible pump (14).

9. The integrated pumping station for drainage and irrigation according to claim 1, characterized in that: It further includes a lubrication and cooling system (37). The lubrication and cooling system includes a water tank (38) and a water delivery pipeline (39) connecting the water tank (38). The water delivery pipeline (39) lubricates the drainage pump (27) and cools the drainage pump motor through the drainage pump (27).

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