Dam foundation water seepage recycling device

Abstract

The utility model provides a dam foundation seepage water recycling device relates to water recycling technical field, including sedimentation tank and purification pond, the pipeline is installed between sedimentation tank and purification pond, the water inlet of sedimentation tank is installed with the flow guide pipe, the flow guide pipe is connected with dam foundation wall body. In the utility model, the dam foundation seepate water of the direct discharge of the past is introduced into the processing system through the flow guide pipe, is filtered and is primarily settled through the filter screen grid of sedimentation tank, purification pond, is converted into the water resource that accords with the cooling standard after the depth purification of filter and hydraulic rotator, this process effectively vitalizes the dam foundation seepage water that is wasted originally, replaces part fresh cooling water source, reduces fresh water resource's consumption again, provides stable clean water source supply for summer unit high frequency cooling demand, fundamentally solves the contradiction of cooling water source deficiency and unit heat dissipation demand high, significantly reduces the probability of unit failure due to insufficient cooling.

Description

Technical Field

[0001] This utility model relates to the field of water recycling technology, and more specifically, to a device for recycling and utilizing seepage water from dam foundations. Background Technology

[0002] During the operation of hydropower stations, the operating load of generator units increases under high summer temperatures, and the heat dissipation demand of core components rises accordingly. A stable supply of clean cooling water is required to control the unit temperature and ensure normal operating parameters. However, some hydropower stations face a shortage of clean water sources because traditional unit cooling water replenishment relies on fresh water sources, which consumes a large amount and has a low utilization rate, making it difficult to meet the high-frequency cooling demand of the units in summer. This can easily lead to a decrease in the operational stability of the units due to insufficient cooling and an increased risk of failure. At the same time, seepage continuously occurs in the dam foundation of hydropower station powerhouses during daily operation. Currently, most of this seepage is directly discharged without effective utilization, which not only wastes water resources but also increases the operating load and maintenance costs of the drainage system around the dam. Therefore, we propose a dam foundation seepage recycling device to solve the above problems. Utility Model Content

[0003] The main purpose of this utility model is to provide a dam foundation seepage recovery and utilization device, which solves the problem of clean water shortage faced by some hydropower stations. Traditional unit cooling water supply relies on fresh water sources, which consumes a lot of water and has a low utilization rate. It is difficult to meet the high-frequency cooling demand of the units in summer, which can easily lead to a decrease in the stability of the units and an increase in the risk of failure due to insufficient cooling. At the same time, seepage will continuously occur in the dam foundation of the hydropower station powerhouse during daily operation. Currently, most of this seepage is directly discharged and not effectively utilized, which not only wastes water resources, but also increases the operating load and maintenance cost of the drainage system around the dam.

[0004] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0005] A dam foundation seepage recovery and utilization device includes a sedimentation tank and a purification tank, with a pipeline running through the sedimentation tank and the purification tank. A guide pipe is installed at the inlet of the sedimentation tank and connected to the dam foundation wall. A first connecting pipe is installed through the outlet of the purification tank. A booster pump is installed on the outside of the first connecting pipe. A water filter is installed at the end of the first connecting pipe away from the purification tank. A second connecting pipe is installed at the outlet of the water filter. A diversion pipe is installed through the second connecting pipe. Several hydraulic rotators are installed between the second connecting pipe and the diversion pipe. A drain pipe is installed at the outlet of the hydraulic rotators, and a water quality detector is installed on the outside of the drain pipe.

[0006] Preferably, filter screens are installed inside the sedimentation tank and the purification tank, respectively, at the end near the inlet, and several partitions are installed inside the sedimentation tank and the purification tank.

[0007] Preferably, water level sensors are installed at the upper part of the sedimentation tank and the purification tank, and overflow pipes are installed through the upper part of the sedimentation tank and the purification tank.

[0008] Preferably, a butterfly valve is installed in the first connecting pipe between the booster pump and the water filter, a check valve is installed in the second connecting pipe, and a second drain pipe is installed at the drain outlet of the hydraulic rotator.

[0009] Preferably, a booster pump motor is installed on one side of the booster pump, and the booster pump motor is connected to the booster pump.

[0010] Preferably, the drain outlet of the water filter is equipped with a first drain pipe, and the first drain pipe and the second drain pipe are connected to an external water collection well.

[0011] Compared with the prior art, the present invention has the following beneficial effects:

[0012] (1) In this utility model, the dam foundation seepage water that was previously directly discharged is introduced into the treatment system through the diversion pipe. After being filtered and pre-sedied by the filter screen of the sedimentation tank and the purification tank, and then deeply purified by the water filter and the hydraulic rotator, it is transformed into water resources that meet the cooling standards. This process effectively revitalizes the dam foundation seepage water that was originally wasted and replaces part of the fresh cooling water source. It not only reduces the consumption of fresh water resources, but also provides a stable clean water source for the high-frequency cooling demand of the unit in summer. It fundamentally solves the contradiction between insufficient cooling water source and high heat dissipation demand of the unit, significantly reduces the probability of unit failure caused by insufficient cooling, and ensures the stable operation of key equipment of the hydropower station.

[0013] (2) In this utility model, the seepage water of the dam foundation is recycled and reused, which reduces the amount of water discharged to the drainage system and directly reduces the operating pressure and maintenance cost of the drainage system. At the same time, the recycled seepage water replaces the fresh water source for cooling, which reduces the cost of pumping and transporting fresh water to the hydropower station and indirectly reduces the overall operating energy consumption and cost. Then, the device achieves preliminary solid-liquid separation through the partition and filter screen of the sedimentation tank and purification tank, and then deep purification through the water filter and hydraulic rotator. With the first sewage pipe and the second sewage pipe, the impurities generated during the purification process are uniformly discharged to the external water collection well, avoiding the pollution of the surrounding environment caused by the direct discharge of impurities. In addition, the recycling of water resources reduces the excessive dependence on natural water sources, which is in line with the concept of environmental protection and achieves a double improvement in economic and ecological benefits. Attached Figure Description

[0014] Figure 1This is a schematic diagram of the overall structure of a dam foundation seepage recycling device according to the present invention.

[0015] In the diagram: 1. Diversion pipe; 2. Sedimentation tank; 3. Purification tank; 4. Overflow pipe; 5. Booster pump; 6. Booster pump motor; 7. Water filter; 8. First sewage pipe; 9. First connecting pipe; 10. Second connecting pipe; 11. Diversion pipe; 12. Water quality detector; 13. Drainage pipe; 14. Hydraulic rotator; 15. Second sewage pipe. Detailed Implementation

[0016] The technical solutions of this utility model will be clearly and completely described below with reference to the embodiments of this utility model. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of this utility model.

[0017] like Figure 1 As shown in the figure, this utility model embodiment proposes a dam foundation seepage recycling device, including a sedimentation tank 2 and a purification tank 3. A pipe is installed through the sedimentation tank 2 and the purification tank 3. A guide pipe 1 is installed at the inlet of the sedimentation tank 2 and is connected to the dam foundation wall. A first connecting pipe 9 is installed through the outlet of the purification tank 3. A booster pump 5 is installed on the outside of the first connecting pipe 9. A water filter 7 is installed at the end of the first connecting pipe 9 away from the purification tank 3. A second connecting pipe 10 is installed at the outlet of the water filter 7. A diversion pipe 11 is installed through the body of the second connecting pipe 10. A plurality of hydraulic rotators 14 are installed through the second connecting pipe 10 and the diversion pipe 11. A drain pipe 13 is installed at the outlet of the hydraulic rotators 14. A water quality detector 12 is installed on the outside of the drain pipe 13.

[0018] like Figure 1 As shown, in another embodiment of this utility model, filter screens are installed inside the sedimentation tank 2 and the purification tank 3, respectively, near the inlet. Several partitions are installed inside the sedimentation tank 2 and the purification tank 3. Water level sensors are installed at the upper part of the sedimentation tank 2 and the purification tank 3. Overflow pipes 4 are installed through the upper part of the sedimentation tank 2 and the purification tank 3. A butterfly valve is installed in the first connecting pipe 9 between the booster pump 5 and the water filter 7. A check valve is installed in the second connecting pipe 10. A second drain pipe 15 is installed at the drain outlet of the hydraulic rotator 14. A booster pump motor 6 is installed on one side of the booster pump 5. The booster pump motor 6 is connected to the booster pump 5. A first drain pipe 8 is installed at the drain outlet of the water filter 7. The first drain pipe 8 and the second drain pipe 15 are connected to the external water collection well.

[0019] The seepage water continuously generated by the dam foundation is introduced into the sedimentation tank 2 through the diversion pipe 1 connected to the dam foundation wall. In the sedimentation tank 2, the seepage water undergoes preliminary filtration of large particles by a screen near the inlet, and the flow rate is slowed by several baffles within the sedimentation tank 2, achieving initial sedimentation. The pre-treated seepage water flows into the purification tank 3 through a connecting pipe between the sedimentation tank 2 and the purification tank 3. In the purification tank 3, it undergoes further filtration by a screen near the inlet, and finer impurities are further settled by the baffles within the purification tank 3. The purified seepage water flows from the outlet of the purification tank 3 into the first connecting pipe 9. The booster pump motor 6, connected to the booster pump 5, is started, providing power to the seepage water. The butterfly valve located in the first connecting pipe 9 between the booster pump 5 and the filter 7 is opened, allowing the seepage water to enter the filter 7 for deep filtration. The filtered seepage water then flows out... The water from the outlet of the water filter 7 flows into the second connecting pipe 10. The check valve in the second connecting pipe 10 prevents backflow of the seepage. After the seepage is diverted by the diversion pipe 11 installed through the second connecting pipe 10, it enters a number of hydraulic rotators 14 installed between the second connecting pipe 10 and the diversion pipe 11 to further separate fine solid particles, sand and other impurities in the water. Finally, the treated seepage flows from the outlet of the hydraulic rotator 14 into the drain pipe 13. The water quality detector 12 on the outside of the drain pipe 13 monitors the seepage water quality in real time to ensure that the water quality meets the unit cooling standards. The qualified seepage can be transported to the unit circulating water pool for cooling. During the process, the impurities produced by the water filter 7 are discharged to the external collection well through the first drain pipe 8 connected to its drain outlet. The impurities separated by the hydraulic rotator 14 are discharged to the external collection well through the second drain pipe 15 installed at its drain outlet.

[0020] The water level sensors installed at the upper part of the sedimentation tank 2 and the purification tank 3 monitor the water level in the tank in real time. If the water level is too high, the seepage will be discharged through the overflow pipe 4 installed through the upper part of the sedimentation tank 2 and the purification tank 3 to prevent the water from overflowing.

[0021] The filter screen near the inlet in sedimentation tank 2 can quickly filter out large particles of impurities in the seepage water, reducing the processing pressure of subsequent purification equipment. Several internal baffles slow down the water flow, allowing suspended impurities in the water to settle fully, improving the initial treatment effect and laying the foundation for the fine treatment in subsequent purification tank 3, thus preventing large particles of impurities from clogging subsequent pipes or equipment.

[0022] The filter screen in purification tank 3 performs finer filtration, further removing small impurities from the seepage water and improving water quality. The internal baffles further promote the sedimentation of small impurities, making the seepage water purification more effective, reducing the wear and tear on subsequent deep filtration equipment, and extending the service life of the equipment.

[0023] The booster pump motor 6 drives the booster pump 5 to provide power for the seepage water, ensuring that the seepage water can be smoothly transported to the subsequent equipment, especially ensuring stability in long-distance or high-drop transportation scenarios. The butterfly valve in the first connecting pipe 9 can flexibly control the seepage water flow rate, which can be adjusted according to the actual treatment needs to avoid excessive flow rate causing equipment overload. The deep filtration of the water filter 7 can effectively remove tiny impurities and suspended solids in the water, making the seepage water quality close to the cooling standard, reducing the burden on the subsequent hydraulic rotary device 14.

[0024] The diversion pipe 11 evenly distributes the seepage water to several hydraulic rotary valves 14, ensuring that each hydraulic rotary valve 14 can work efficiently and improve the overall purification efficiency. The hydraulic rotary valves 14 use centrifugal force to separate fine solid particles, sand, mud and other substances in the water, further improving the water quality and ensuring that the final seepage water meets the unit's cooling requirements. The check valve in the second connecting pipe 10 prevents seepage water from flowing back, avoiding the mixing of treated seepage water with untreated seepage water, ensuring stable treated water quality, and preventing backflow pressure from damaging the upstream equipment.

[0025] The water quality detector 12 on the drain pipe 13 monitors the water quality of the treated seepage water in real time, which can promptly detect water quality failures, prevent unqualified water from entering the unit's cooling system, prevent water quality issues from affecting the unit's operational stability, ensure the heat dissipation needs of the unit's core components, and reduce the risk of unit failure.

[0026] The working principle of this dam foundation seepage recovery and utilization device:

[0027] In operation, the seepage water continuously generated by the dam foundation is first introduced into the sedimentation tank 2 through the diversion pipe 1 connected to the dam foundation wall. In the sedimentation tank 2, the seepage water undergoes preliminary filtration by a screen near the inlet to remove large particles, and the flow rate is slowed by several baffles within the sedimentation tank 2, achieving initial sedimentation. The pre-treated seepage water then flows into the purification tank 3 through a connecting pipe between the sedimentation tank 2 and the purification tank 3. In the purification tank 3, it undergoes further filtration by a screen near the inlet, and finer impurities are further settled by the baffles within the purification tank 3. The purified seepage water flows from the outlet of the purification tank 3 into the first connecting pipe 9. The booster pump motor 6, connected to the booster pump 5, is then started, providing power to the seepage water. The butterfly valve located in the first connecting pipe 9 between the booster pump 5 and the filter 7 is opened, allowing the seepage water to enter the filter 7 for deep filtration. Seepage water flows from the outlet of water filter 7 into the second connecting pipe 10. The check valve in the second connecting pipe 10 prevents backflow of seepage water. After being diverted by the diversion pipe 11 installed through the second connecting pipe 10, the seepage water enters several hydraulic rotators 14 installed between the second connecting pipe 10 and the diversion pipe 11 to further separate fine solid particles, sand and other impurities in the water. Finally, the treated seepage water flows from the outlet of the hydraulic rotator 14 into the drain pipe 13. The water quality detector 12 on the outside of the drain pipe 13 monitors the seepage water quality in real time to ensure that the water quality meets the unit cooling standards. The qualified seepage water can be transported to the unit circulating water pool for cooling. During the process, the impurities produced by the water filter 7 are discharged to the external collection well through the first drain pipe 8 connected to its drain outlet. The impurities separated by the hydraulic rotator 14 are discharged to the external collection well through the second drain pipe 15 installed at their respective drain outlets.

[0028] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating this utility model, and are not intended to limit the implementation of this utility model. For those skilled in the art, other variations or modifications can be made based on the above description. It is impossible to exhaustively list all the implementation methods here. Any obvious variations or modifications derived from the technical solutions of this utility model are still within the protection scope of this utility model.

Claims

1. A device for recycling seepage water from a dam foundation, comprising a sedimentation tank (2) and a purification tank (3), characterized in that: A pipe is installed between the sedimentation tank (2) and the purification tank (3). A guide pipe (1) is installed at the inlet of the sedimentation tank (2). The guide pipe (1) is connected to the dam foundation wall. A first connecting pipe (9) is installed at the outlet of the purification tank (3). A booster pump (5) is installed on the outside of the first connecting pipe (9). A water filter (7) is installed at the end of the first connecting pipe (9) away from the purification tank (3). A second connecting pipe (10) is installed at the outlet of the water filter (7). A diversion pipe (11) is installed through the body of the second connecting pipe (10). Several hydraulic rotators (14) are installed through the second connecting pipe (10) and the diversion pipe (11). A drain pipe (13) is installed at the outlet of the hydraulic rotator (14). A water quality detector (12) is installed on the outside of the drain pipe (13).

2. The dam foundation seepage recovery and utilization device according to claim 1, characterized in that: The sedimentation tank (2) and the purification tank (3) are respectively equipped with filter screens at the end near the water inlet. The sedimentation tank (2) and the purification tank (3) are respectively equipped with several partitions.

3. The dam foundation seepage recovery and utilization device according to claim 1, characterized in that: Water level sensors are installed at the upper part of the sedimentation tank (2) and the purification tank (3), and overflow pipes (4) are installed through the upper part of the sedimentation tank (2) and the purification tank (3).

4. The dam foundation seepage recovery and utilization device according to claim 1, characterized in that: A butterfly valve is installed in the first connecting pipe (9) between the booster pump (5) and the water filter (7), and a check valve is installed in the second connecting pipe (10). The drain outlet of the hydraulic rotator (14) is equipped with a second drain pipe (15).

5. The dam foundation seepage recovery and utilization device according to claim 1, characterized in that: A booster pump motor (6) is installed on one side of the booster pump (5), and the booster pump motor (6) is connected to the booster pump (5).

6. The dam foundation seepage recovery and utilization device according to claim 4, characterized in that: The drain outlet of the water filter (7) is equipped with a first drain pipe (8), and the first drain pipe (8) and the second drain pipe (15) are connected to the external water collection well.

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