A dam bottom air-closed pressurized water delivery device

Abstract

The application relates to the technical field of pressure boosting water delivery, in particular to a dam bottom air-closed pressure boosting water delivery device, which comprises a pressure boosting water delivery device, a main liquid chamber is arranged in the middle of the pressure boosting water delivery device, an air-closed chamber and a first water delivery chamber are arranged in the pressure boosting water delivery device and are in internal communication, and the main liquid chamber is in internal communication with the air-closed chamber. The purpose of the application is: when the pressure of the main liquid chamber is greater than that of the second water delivery chamber, the pressure difference drives the liquid to flow into the second water delivery chamber and to flow to the conveying pipe, the water gate controls the liquid flow in the first water delivery chamber to guarantee the smooth pressure transmission, the liquid level is monitored in the stroke switch in the circulation, the air-closed chamber liquid level is closed-loop controlled through linkage of the water gate and the air pump, the device is driven by the dam water source, realizes the circulation pressure boosting water delivery without additional power, can realize the cross-region and long-distance water body allocation and delivery through pipe network construction, effectively alleviates the water resource shortage problem in arid regions, and helps to develop the water shortage wasteland into arable land.

Description

Technical Field

[0001] This invention relates to the field of pressurized water conveyance technology, specifically to a pressurized water conveyance device with airtight seal at the bottom of a dam. Background Technology

[0002] The air-sealed pressurized water conveyance device at the bottom of the dam is a device that uses a sealed air chamber to isolate the water body and uses the compressibility of compressed air to achieve water storage, regulation and pressurized conveyance. Its core function is to replace traditional high-level water tanks or water towers and provide a stable pressure water source for the downstream of the dam or water conveyance system.

[0003] Currently, in the process of water resource allocation and transportation from dams, conventional water conveyance modes are prone to problems such as insufficient water pressure and low transportation efficiency when transporting water across regions and over long distances. This results in significant water resource transportation losses and limited allocation range, leading to insufficient water resource replenishment in arid areas and affecting the development and utilization of water-scarce wastelands. Summary of the Invention

[0004] The purpose of this invention is to provide a closed-loop pressurized water conveyance device at the bottom of a dam. When the pressure in the main liquid chamber is greater than that in the second water conveyance chamber, the pressure difference drives the liquid to flow into the second water conveyance chamber and into the conveying pipe. The sluice gate regulates the liquid flow rate in the first water conveyance chamber to ensure stable pressure transmission. During the circulation, the limit switch monitors the liquid level, and the linkage between the sluice gate and the air pump realizes closed-loop control of the liquid level in the closed-loop chamber. This device relies on the dam's water source for driving and realizes cyclic pressurized water conveyance without additional power. It can achieve cross-regional and long-distance water allocation and transportation through pipeline network construction, effectively alleviating the water shortage problem in arid areas and helping to develop water-scarce wasteland into arable land, thereby solving the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a pressure-boosting water conveyance device for the bottom of a dam, comprising a pressure-boosting water conveyor, wherein a main liquid chamber is provided in the middle of the pressure-boosting water conveyor, and an air-sealed chamber and a first water conveyance chamber are provided inside the pressure-boosting water conveyor, wherein the air-sealed chamber and the first water conveyance chamber are connected internally, and the main liquid chamber is connected internally to the air-sealed chamber, wherein a concealed pipe is connected internally to the first water conveyance chamber, and a second water conveyance chamber is provided at the bottom of the pressure-boosting water conveyor, wherein the second water conveyance chamber is connected internally to the first water conveyance chamber through a port, and a delivery pipe is connected internally to the second water conveyance chamber.

[0006] Preferably, a sluice gate is provided at the connection between the main liquid chamber and the airtight chamber, and the sluice gate is a sluice gate control valve made of stainless steel.

[0007] Preferably, one end of the concealed pipe passes through the interior of the main liquid chamber and the air-sealed chamber in sequence, and the other end of the concealed pipe is connected to the interior of the first water conveying chamber.

[0008] Preferably, the other end of the culvert extends to the riverbank of the dam, and the other end of the culvert is connected to an air pump installed on the riverbank of the dam.

[0009] Preferably, two sets of limit switches are installed on the inner wall of the second water conveying chamber. The limit switches are submersible magnetic coupling limit switches, and the two sets of limit switches correspond to the high and low water level thresholds of the second water conveying chamber, respectively.

[0010] Preferably, a drain valve is provided at the connection between the second water supply chamber and the delivery pipe, and the drain valve adopts a sealed valve structure design.

[0011] Preferably, the booster water conveyance device is located at the bottom of the dam, the booster water conveyance device is an integrated main cavity of the device, and the booster water conveyance device is integrally formed from carbon steel or stainless steel.

[0012] Compared with the prior art, the beneficial effects of the present invention are:

[0013] 1. When the pressure in the main liquid chamber is greater than that in the second water conveying chamber, the pressure difference drives the liquid to flow into the second water conveying chamber and then into the conveying pipe. The sluice gate regulates the liquid flow rate in the first water conveying chamber to ensure stable pressure transmission. During the circulation, the limit switch monitors the liquid level and links the sluice gate and the air pump to achieve closed-loop control of the liquid level in the air-sealed chamber, maintaining a stable pressure difference and ensuring that the liquid is continuously circulated and conveyed to the conveying pipe through the main liquid chamber and the second water conveying chamber. This device relies on the dam's water source to achieve circulating pressurized water conveyance without additional power. It can realize cross-regional and long-distance water allocation and transportation through pipeline network construction, effectively alleviating the water shortage problem in arid areas and helping to develop water-scarce wasteland into arable land.

[0014] 2. During long-term circulating water supply, impurities and blockages in the water will gradually accumulate in the second water supply chamber. If there are too many impurities, it will affect the liquid flow efficiency and pressure transmission effect. At this time, the water gate can be closed to cut off the pressure transmission between the air-sealed chamber and the main liquid chamber. Then, the drain valve can be opened to use the remaining pressure in the main liquid chamber to discharge the accumulated impurities and blockages through the conveying pipe. After the drain is completed, the drain valve can be closed, and the water gate and water supply branch valve can be reopened. The air pump will pressurize to the preset value according to the pressure in the air-sealed chamber, and the device can quickly resume circulating water supply. Regular draining can ensure the long-term stable operation of the device. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of a dam bottom air-tight pressurized water conveyance device according to the present invention;

[0016] Figure 2 This is a second schematic diagram of the overall structure of a dam bottom air-tight pressurized water conveyance device according to the present invention;

[0017] Figure 3 This is one of the overall structural cross-sectional views of a dam bottom air-tight pressurized water conveyance device according to the present invention;

[0018] Figure 4This is one of the overall structural cross-sectional views of a dam bottom air-tight pressurized water conveyance device according to the present invention;

[0019] Figure 5 This is a cross-sectional plan view of the overall structure of a dam bottom air-tight pressurized water conveyance device according to the present invention;

[0020] Figure 6 This invention relates to an airtight pressurized water conveyance device at the bottom of a dam. Figure 5 Enlarged view of the structure at point A in the image;

[0021] Figure 7 This invention relates to an airtight pressurized water conveyance device at the bottom of a dam. Figure 5 Enlarged view of the structure at point B in the image.

[0022] In the diagram: 1. Booster water supply device; 2. Main liquid chamber; 3. Air-sealed chamber; 4. First water supply chamber; 5. Second water supply chamber; 6. Delivery pipe; 7. Water gate; 8. Concealed pipe; 9. Limit switch; 10. Sewage discharge tank valve. Detailed Implementation

[0023] The technical solutions of 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 some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0024] Please see Figures 1 to 7 This invention provides a pressurized water conveying device for the bottom of a dam with an airtight seal, including a pressurized water conveyor 1. The pressurized water conveyor 1 has a main liquid chamber 2 in the middle. The pressurized water conveyor 1 has an airtight chamber 3 and a first water conveying chamber 4 inside, and the airtight chamber 3 and the first water conveying chamber 4 are internally connected. The main liquid chamber 2 is internally connected to the airtight chamber 3. The first water conveying chamber 4 is internally connected to a concealed pipe 8. The pressurized water conveyor 1 has a second water conveying chamber 5 at the bottom. The second water conveying chamber 5 is internally connected to the first water conveying chamber 4 through a port. The second water conveying chamber 5 is internally connected to a conveying pipe 6.

[0025] After the booster water supply unit 1 is fully installed underwater, the main liquid chamber 2 is connected to the dam water body. The dam water body naturally flows into the main liquid chamber 2 until the liquid level in the main liquid chamber 2 reaches pressure equilibrium with the dam water body. The air pump injects gas into the air-sealed chamber 3 through the concealed pipe 8, so that the air-sealed chamber 3 contains enough air to form a space to buffer the pressure. At this time, the liquid level in the air-sealed chamber 3 is at the low threshold, the limit switch 9 is not triggered, the sluice gate 7 is in a slightly open state, and the sewage discharge valve 10 is in a sealed closed state. The booster water supply unit 1 completes the initial pressure and liquid level adjustment and starts working.

[0026] The liquid pressure in the main liquid chamber 2 is transmitted to the air-sealed chamber 3 through the first water supply chamber 4. The gas in the air-sealed chamber 3 generates an elastic reaction force under the action of the liquid pressure. This reaction force is transmitted back to the main liquid chamber 2 through the first water supply chamber 4, forming a dynamic balance with the pipeline pressure in the second water supply chamber 5. At this time, the liquid pressure in the main liquid chamber 2 and the pressure in the second water supply chamber 5 tend to be the same, the liquid does not flow, the device is in a low-power standby state, the liquid level in the air-sealed chamber 3 remains stable, the limit switch 9 continuously monitors the liquid level, and the air pump is in a standby state. If a small amount of air leakage occurs in the air-sealed chamber 3, the air pump will automatically replenish the pressure through the concealed pipe 8 to ensure the stability of the gas volume in the air-sealed chamber 3 and avoid affecting the standby state due to pressure imbalance.

[0027] When the water level of the dam rises or the demand for water delivery at the end of the second water delivery chamber 5 increases, the liquid pressure in the main liquid chamber 2 increases and the pressure value is greater than the pipeline pressure in the second water delivery chamber 5. The booster pump 1 no longer maintains the original pressure balance state. Under the action of the pressure difference, the high-pressure liquid in the main liquid chamber 2 is slowly pushed into the air-sealed chamber 3 through the first water delivery chamber 4, causing the liquid level in the air-sealed chamber 3 to rise slowly. Driven by the pressure difference, the liquid flows along the second water delivery chamber 5 to the delivery pipe 6, and the circulation water delivery of the device is officially started. At the same time, the sluice gate 7 automatically adjusts the opening and closing degree according to the pressure difference to control the liquid flow rate in the first water delivery chamber 4, prevent the liquid from rushing into the air-sealed chamber 3, causing the gas to be over-compressed, and ensure the stability of pressure transmission.

[0028] During the circulating water transport process, the liquid level in the air-sealed chamber 3 continuously rises with the pressure change in the main liquid chamber 2. When the liquid level reaches the preset high threshold of the limit switch 9, both sets of limit switches 9 are triggered and send signals. On the one hand, the sluice gate 7 is controlled to reduce the opening degree, thereby reducing the liquid inflow into the first water transport chamber 4. On the other hand, the air pump is started. The air pump replenishes gas into the air-sealed chamber 3 through the concealed pipe 8. The gas pressure is used to push some of the liquid in the air-sealed chamber 3 back into the main liquid chamber 2, causing the liquid level in the air-sealed chamber 3 to gradually decrease. When the liquid level drops to the preset low threshold of the limit switch 9, the limit switch 9 is reset, the air pump stops replenishing pressure, and the sluice gate 7 returns to the opening degree that matches the current pressure difference. Through this closed-loop control of the liquid level, the air-sealed chamber 3 is guaranteed to always retain a sufficient gas volume, maintain its air elastic buffer function, and keep the pressure difference between the main liquid chamber 2 and the second water transport chamber 5 within a stable working range, ensuring the continuity and stability of the circulating water transport.

[0029] Under the coordinated control of limit switch 9, air pump, and water gate 7, the gas volume and liquid level in the air-sealed chamber 3 are always maintained within the preset range. The pressure difference between the main liquid chamber 2 and the second water delivery chamber 5 is continuously balanced through the elastic buffering effect of air. Driven by the continuous pressure difference, the liquid in the main liquid chamber 2 flows into the second water delivery chamber 5 and is transported to the delivery pipe 6. While completing the water delivery, the dam water continuously replenishes the main liquid chamber 2, forming a continuous circulation of the dam water through the main liquid chamber 2, the second water delivery chamber 5, and the delivery pipe 6. During the circulation process, the elastic buffering effect of the air-sealed chamber 3 effectively absorbs the pressure fluctuations in the pipeline, avoids pipeline impact caused by water hammer effect, and improves the safety of water delivery by the device.

[0030] When the pressure in the main liquid chamber 2 is greater than that in the second water conveying chamber 5, the pressure difference drives the liquid to flow into the second water conveying chamber 5 and into the conveying pipe 6. The sluice gate 7 regulates the liquid flow rate in the first water conveying chamber 4 to ensure stable pressure transmission. During the circulation, the limit switch 9 monitors the liquid level and links the sluice gate 7 and the air pump to achieve closed-loop control of the liquid level in the air-sealed chamber 3, maintaining a stable pressure difference and ensuring that the liquid is continuously circulated and conveyed to the conveying pipe 6 through the main liquid chamber 2 and the second water conveying chamber 5. This device relies on the dam's water source to achieve circulating pressurized water conveyance without additional power. It can achieve cross-regional and long-distance water allocation and transportation through pipeline network construction, effectively alleviating the water shortage problem in arid areas and helping to develop water-scarce wasteland into arable land.

[0031] During the long-term circulating water supply process of the booster water supply device 1, impurities and silt in the water will gradually accumulate in the second water supply chamber 5. If there are too many impurities, it will affect the liquid flow efficiency and pressure transmission effect. At this time, the water gate 7 can be closed to cut off the pressure transmission between the air-sealed chamber 3 and the main liquid chamber 2. Then, the drain valve 10 can be opened to use the remaining pressure in the main liquid chamber 2 to discharge the accumulated impurities and silt through the conveying pipe 6. After the drain is completed, the drain valve 10 can be closed, and the water gate 7 and the water supply branch valve can be reopened. The air pump can replenish the pressure to the preset value according to the pressure in the air-sealed chamber 3, and the device can quickly resume the circulating water supply working state. Regular draining can ensure the long-term stable operation of the device.

[0032] In an optional embodiment, a sluice gate 7 is provided at the connection between the main liquid chamber 2 and the air-sealed chamber 3. The sluice gate 7 is a sluice gate control valve made of stainless steel.

[0033] It should be noted that the sluice gate 7 can automatically adjust its opening and closing degree according to the pressure difference between the main liquid chamber 2 and the second water delivery chamber 5, accurately control the liquid flow rate in the first water delivery chamber 4, avoid the liquid from rushing into the air-sealed chamber 3 and causing excessive gas compression, and ensure stable pressure transmission.

[0034] In an optional embodiment, one end of the concealed pipe 8 passes through the interior of the main liquid chamber 2 and the airtight chamber 3 in sequence, and the other end of the concealed pipe 8 is connected to the interior of the first water delivery chamber 4.

[0035] It should be noted that the concealed pipe 8 is the gas delivery channel of the air-sealed chamber 3. Its through-type structure ensures that the gas replenishment path is unobstructed, and at the same time it is connected to the first water delivery chamber 4 to realize the linkage transmission of gas pressure and liquid pressure.

[0036] In an optional embodiment, the other end of the culvert 8 extends to the riverbank of the dam, and the other end of the culvert 8 is connected to an air pump installed on the riverbank of the dam.

[0037] It should be noted that the air pump provides air replenishment and pressure replenishment functions for the air-sealed chamber 3. It can automatically respond to air leakage or liquid level changes in the air-sealed chamber 3 and replenish gas in a timely manner through the concealed pipe 8 to ensure the stability of the gas volume in the air-sealed chamber 3.

[0038] In an optional embodiment, two sets of limit switches 9 are installed on the inner wall of the second water supply chamber 5. The limit switches 9 are submersible magnetic coupling limit switches, and the two sets of limit switches 9 correspond to the high and low water level thresholds of the second water supply chamber 5, respectively.

[0039] It should be noted that the two sets of limit switches 9 monitor the high and low liquid level thresholds of the air-sealed chamber 3 respectively. After being triggered, they can control the opening and closing of the sluice gate 7 and the start and stop of the air pump, forming a closed-loop control of the liquid level and maintaining the buffer function of the air-sealed chamber 3.

[0040] In an optional embodiment, a drain valve 10 is provided at the connection between the second water supply chamber 5 and the delivery pipe 6. The drain valve 10 adopts a sealed valve structure design.

[0041] It should be noted that the drain valve 10 is normally sealed and closed, but opens during draining. It can use the residual pressure in the main liquid chamber 2 to discharge the impurities accumulated in the second water delivery chamber 5, ensuring the efficiency of liquid flow and pressure transmission.

[0042] In an optional embodiment, the booster water supply device 1 is located at the bottom of the dam. The booster water supply device 1 is an integrated main cavity of the device, and the booster water supply device 1 is integrally formed from carbon steel or stainless steel.

[0043] It should be noted that the integrated main cavity is adapted to the high-pressure underwater environment at the bottom of the dam. The carbon steel or stainless steel material has corrosion resistance and pressure resistance properties, which prevents the cavity from deforming and leaking, and ensures the overall sealing and pressure transmission effect of the device.

[0044] Working principle: After the booster water supply unit 1 is fully installed underwater, the main liquid chamber 2 is connected to the dam water body. The dam water body naturally flows into the main liquid chamber 2 until the liquid level in the main liquid chamber 2 reaches pressure balance with the dam water body. The air pump injects gas into the air-sealed chamber 3 through the concealed pipe 8, so that the air-sealed chamber 3 contains enough air to form a space to buffer the pressure. At this time, the liquid level in the air-sealed chamber 3 is at the low threshold, the limit switch 9 is not triggered, the water gate 7 is in a slightly open state, and the sewage discharge valve 10 is in a sealed closed state. The booster water supply unit 1 completes the initial pressure and liquid level adjustment and starts working.

[0045] The liquid pressure in the main liquid chamber 2 is transmitted to the air-sealed chamber 3 through the first water supply chamber 4. The gas in the air-sealed chamber 3 generates an elastic reaction force under the action of the liquid pressure. This reaction force is transmitted back to the main liquid chamber 2 through the first water supply chamber 4, forming a dynamic balance with the pipeline pressure in the second water supply chamber 5. At this time, the liquid pressure in the main liquid chamber 2 and the pressure in the second water supply chamber 5 tend to be the same. There is no liquid flow, and the device is in a low-power standby state. The liquid level in the air-sealed chamber 3 remains stable. The limit switch 9 continuously monitors the liquid level. The air pump is in a standby state. If a small amount of air leakage occurs in the air-sealed chamber 3, the air pump will automatically replenish the pressure through the concealed pipe 8 to ensure the stability of the gas volume in the air-sealed chamber 3.

[0046] When the water level of the dam rises or the demand for water delivery at the end of the second water delivery chamber 5 increases, the liquid pressure in the main liquid chamber 2 increases and the pressure value is greater than the pipeline pressure in the second water delivery chamber 5. The booster pump 1 no longer maintains the original pressure balance state. Under the action of the pressure difference, the high-pressure liquid in the main liquid chamber 2 is slowly pushed into the air-sealed chamber 3 through the first water delivery chamber 4, causing the liquid level in the air-sealed chamber 3 to rise slowly. Driven by the pressure difference, the liquid flows along the second water delivery chamber 5 to the delivery pipe 6, and the circulation water delivery of the device is officially started. At the same time, the sluice gate 7 automatically adjusts the opening and closing degree according to the pressure difference to control the liquid flow rate in the first water delivery chamber 4.

[0047] During the circulating water transport process, the liquid level in the air-sealed chamber 3 continuously rises with the pressure change in the main liquid chamber 2. When the liquid level reaches the high threshold preset by the limit switch 9, both sets of limit switches 9 are triggered and send signals. On the one hand, the sluice gate 7 is controlled to reduce the opening degree, thereby reducing the liquid inflow into the first water transport chamber 4. On the other hand, the air pump is started. The air pump replenishes gas into the air-sealed chamber 3 through the concealed pipe 8. The gas pressure is used to push some of the liquid in the air-sealed chamber 3 back into the main liquid chamber 2, causing the liquid level in the air-sealed chamber 3 to gradually decrease. When the liquid level drops to the low threshold preset by the limit switch 9, the limit switch 9 is reset, the air pump stops replenishing pressure, and the sluice gate 7 returns to the opening degree that matches the current pressure difference. Through this closed-loop control of the liquid level, the air-sealed chamber 3 is guaranteed to always retain a sufficient gas volume to maintain its air elastic buffer function.

[0048] Under the coordinated control of limit switch 9, air pump and sluice gate 7, the gas volume and liquid level in the air-sealed chamber 3 are always kept within the preset range. The pressure difference between the main liquid chamber 2 and the second water conveying chamber 5 is continuously balanced through the elastic buffering effect of air. Under the continuous pressure difference, the liquid in the main liquid chamber 2 flows into the second water conveying chamber 5 and is conveyed to the conveying pipe 6. While the water is conveyed, the dam water body continuously replenishes the main liquid chamber 2, forming a continuous circulation of the dam water body through the main liquid chamber 2, the second water conveying chamber 5, and the conveying pipe 6.

[0049] During the long-term circulating water supply process of the booster water supply device 1, impurities and silt in the water will gradually accumulate in the second water supply chamber 5. At this time, the water gate 7 can be closed to cut off the pressure transmission between the air-sealed chamber 3 and the main liquid chamber 2. Then, the drain tank valve 10 can be opened to use the remaining pressure in the main liquid chamber 2 to discharge the accumulated impurities and silt through the conveying pipe 6. After the drain is completed, the drain tank valve 10 can be closed, and the water gate 7 and the water supply branch valve can be reopened. The air pump can replenish the pressure to the preset value according to the pressure in the air-sealed chamber 3, and the device can quickly resume the circulating water supply operation.

[0050] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A dam bottom air-tight pressurized water conveyance device, characterized in that, The device includes a booster water delivery unit (1), which has a main liquid chamber (2) in the middle, an airtight chamber (3) and a first water delivery chamber (4) inside the booster water delivery unit (1), and the airtight chamber (3) and the first water delivery chamber (4) are internally connected. The main liquid chamber (2) and the airtight chamber (3) are internally connected. The first water delivery chamber (4) is internally connected to a concealed pipe (8). The booster water delivery unit (1) has a second water delivery chamber (5) at the bottom, which is internally connected to the first water delivery chamber (4) through a port. The second water delivery chamber (5) is internally connected to a delivery pipe (6).

2. The airtight pressurized water conveyance device at the bottom of a dam according to claim 1, characterized in that, A sluice gate (7) is provided at the connection between the main liquid chamber (2) and the air-sealed chamber (3). The sluice gate (7) is a sluice gate control valve made of stainless steel.

3. The airtight pressurized water conveyance device at the bottom of a dam according to claim 1, characterized in that, One end of the concealed pipe (8) is connected to the interior of the main liquid chamber (2) and the air-sealed chamber (3) in sequence, and the other end of the concealed pipe (8) is connected to the interior of the first water delivery chamber (4).

4. The airtight pressurized water conveyance device at the bottom of a dam according to claim 3, characterized in that, The other end of the culvert (8) extends to the riverbank of the dam, and the other end of the culvert (8) is connected to an air pump installed on the riverbank of the dam.

5. The airtight pressurized water conveyance device at the bottom of a dam according to claim 1, characterized in that, Two sets of limit switches (9) are installed on the inner wall of the second water conveying chamber (5). The limit switches (9) are submersible magnetic coupling limit switches. The two sets of limit switches (9) correspond to the high and low water level thresholds of the second water conveying chamber (5) respectively.

6. The airtight pressurized water conveyance device at the bottom of a dam according to claim 1, characterized in that, A drain valve (10) is provided at the connection between the second water supply chamber (5) and the delivery pipe (6), and the drain valve (10) adopts a sealed valve structure design.

7. A dam bottom air-tight pressurized water conveyance device according to claim 1, characterized in that, The booster water conveying device (1) is located at the bottom of the dam. The booster water conveying device (1) is an integrated main cavity of the device, and the booster water conveying device (1) is integrally formed from carbon steel or stainless steel.

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