Anti-seepage dam supporting structure for water conservancy project

Abstract

The utility model relates to the technical field of dam supporting structures, and discloses an anti-seepage dam supporting structure for a water conservancy project, which comprises a water retaining section and an overflow section, a rotating shaft and a water turbine blade are arranged in the middle of the overflow section, buffer components are arranged on the overflow section and the water retaining section, each buffer component comprises a supporting plate, and the supporting plates are arranged on the rotating shaft. Sealing plates are fixedly connected to the two sides of the supporting plate correspondingly, and sliding blocks are fixedly connected to the outer sides of the sealing plates. According to the utility model, the water flow impact direction is changed and the kinetic energy of the water flow is consumed through the buffer assembly, the inclined support plate and the buffer ripples at the top of the support plate, so that the water flow is prevented from directly impacting the water turbine blade, and the risk of damage to the water turbine blade is reduced. And meanwhile, the supporting plate can be buffered and reset through cooperation of the sliding blocks, the springs and the dampers when being impacted by water flow, the buffering effect on the water flow impact is further enhanced, and the service life of the water turbine blades and the service life of the whole device are prolonged.

Description

Technical Field

[0001] This utility model relates to the field of dam support structure technology, and in particular to a seepage-proof dam support structure for water conservancy projects. Background Technology

[0002] In common hydraulic engineering seepage-proof dam support structures, the dam forms a robust barrier to regulate water flow and enable hydropower utilization. Water flowing downstream from upstream makes direct, unobstructed contact with the dam structure.

[0003] In the spillway section of the dam, turbine blades are housed. Their core function is to utilize the powerful impact force of the water flow to drive the blades to rotate rapidly, thus efficiently converting water energy into other usable forms of energy, such as electrical energy. During this energy conversion process, the water flow, with extremely high speed and force, violently impacts the turbine blades directly without any buffering, attempting to propel the blades to rotation using its own kinetic energy. Simultaneously, the various support structures installed on the dam body focus primarily on stabilizing the dam structure, preventing water seepage into the dam's interior, and ensuring the dam's safety and durability.

[0004] Because water flow directly impacts turbine blades without any buffer, the blades, subjected to prolonged high-intensity impact, are highly susceptible to damage. Frequent impacts can cause wear, deformation, and even breakage on the blade surface. This not only reduces the turbine blades' efficiency but also significantly shortens their service life and increases maintenance and replacement costs. Therefore, a seepage-proof dam support structure for hydraulic engineering is proposed to address these problems. Utility Model Content

[0005] To overcome the above shortcomings, this utility model provides a seepage-proof dam support structure for water conservancy projects, which aims to improve the problems of water flow directly impacting turbine blades, causing them to be easily damaged, high maintenance costs, and affecting the stability of the dam body in the existing technology.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a seepage-proof dam support structure for water conservancy projects, comprising a water-retaining section and an overflow section, wherein a rotating shaft and turbine blades are provided in the middle of the overflow section, and buffer components are provided on both the overflow section and the water-retaining section;

[0007] The buffer assembly includes a support plate, with sealing plates fixedly connected to both sides of the support plate. A slider is fixedly connected to the outer side of the sealing plate. A groove is formed on the inner side of the water-blocking section. The slider is disposed on the inner wall of the groove. A damper is fixedly installed on the inner wall of the groove. A spring is fixedly connected to the telescopic end of the damper. The top end of the spring is fixedly connected to the bottom of the slider, and the bottom end of the spring is fixedly connected to the surface of the damper. The support plate is located directly above the turbine blades, and a diversion assembly is disposed below the support plate.

[0008] As a further description of the above technical solution: the diversion component includes an interceptor plate, the interceptor plate is provided with an overflow hole, the two ends of the rotating shaft are respectively rotatably connected to the inner walls of the two sides of the water-blocking section through bearings, and the surface of the turbine blades is in contact with the top of the interceptor plate.

[0009] As a further description of the above technical solution: the support plate is inclined, and a buffer corrugation is fixedly connected to the top of the support plate.

[0010] As a further description of the above technical solution: the sealing plate is strip-shaped, and the outer side of the sealing plate is in sealing contact with the inner walls of both sides of the water-blocking section.

[0011] As a further description of the above technical solution: the interceptor plate is arc-shaped, and the two sides of the interceptor plate are fixedly connected to the inner walls of the two sides of the water-blocking section, respectively.

[0012] As a further description of the above technical solution: a scraper is fixedly connected to the surface of the turbine blade, the scraper is arc-shaped, and the outer side of the scraper contacts the top of the interceptor plate.

[0013] As a further description of the above technical solution: both the slider and the groove are convex in shape, and the outer wall of the slider is slidably connected to the inner wall of the groove.

[0014] As a further description of the above technical solution: the overflow holes are circular and symmetrically spaced at the top of the interceptor plate.

[0015] This utility model has the following beneficial effects:

[0016] 1. In this utility model, by setting a buffer component, by setting an inclined support plate and its top buffer corrugations, the impact direction of the water flow is changed and the kinetic energy of the water flow is consumed, so as to avoid the water flow directly impacting the turbine blades and reduce the risk of damage to the turbine blades. At the same time, when the support plate is impacted by the water flow, it can be buffered and reset by the cooperation of the slider, spring and damper, which further enhances the buffering effect of the water flow impact and extends the service life of the turbine blades and the entire device.

[0017] 2. In this utility model, by setting up a diversion component, the overflow hole on the interceptor plate allows water to flow through and impact the turbine blades. At the same time, the interceptor plate intercepts impurities such as mud and sand in the water flow. Then, with the help of the scraper on the turbine blades during rotation, the mud and sand on the interceptor plate are scraped off, thereby achieving the diversion of mud and sand and water, preventing mud and sand from causing wear on the turbine blades, improving the efficiency of the turbine blades in utilizing water flow energy, and ensuring the dam's efficient utilization of water energy. Attached Figure Description

[0018] Figure 1This is a front view of a seepage-proof dam support structure for water conservancy projects proposed in this utility model;

[0019] Figure 2 This is a schematic diagram of the overall structure of the buffer component and diversion component of the anti-seepage dam support structure for water conservancy projects proposed in this utility model;

[0020] Figure 3 This is a schematic diagram of the rotating shaft, turbine blades, and scraper of a seepage-proof dam support structure for water conservancy projects proposed in this utility model.

[0021] Figure 4 This is a partial structural schematic diagram of a buffer component of a seepage-proof dam support structure for water conservancy projects proposed in this utility model.

[0022] Legend:

[0023] 1. Water-blocking section; 2. Interception plate; 3. Support plate; 4. Overflow section; 5. Damper; 6. Sliding block; 7. Spring; 8. Turbine blade; 9. Shaft; 10. Buffer corrugations; 11. Scraper; 12. Sealing plate. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] Reference Figure 1 This utility model provides an embodiment of a seepage-proof dam support structure for water conservancy projects, including a water-blocking section 1 and an overflow section 4. The water-blocking section 1 is used to block water flow and control the water level, while the overflow section 4 guides the water flow to overflow when the water level is too high, ensuring the safety of the dam. A rotating shaft 9 and a turbine blade 8 are provided in the middle of the overflow section 4. The rotating shaft 9 provides rotational support for the turbine blade 8. The turbine blade 8 rotates under the impact of the water flow to realize the conversion of water energy. Both the overflow section 4 and the water-blocking section 1 are provided with buffer components, which can effectively reduce the impact of the water flow on the dam body and the turbine blade 8, and extend the service life of the device.

[0026] Reference Figure 1 , Figure 2 , Figure 4The buffer assembly includes a support plate 3, which is inclined. The inclined support plate 3 can change the direction of water flow impact and disperse the water flow impact force. A buffer corrugation 10 is fixedly connected to the top of the support plate 3. The buffer corrugation 10 further consumes the kinetic energy of the water flow through a special corrugated structure, reducing the impact on the support plate 3. Sealing plates 12 are fixedly connected to both sides of the support plate 3. The sealing plates 12 can prevent water from entering the internal structure of the water-blocking section 1 and avoid damage to the internal device of the chute. The sealing plates 12 are strip-shaped, and the outer side of the sealing plates 12... The sealing plate 12 is in sealed contact with the inner walls on both sides of the water-retaining section 1 to ensure the sealing effect and maintain the stable operating environment of the internal structure of the dam. The outer side of the sealing plate 12 is fixedly connected with a slider 6. The slider 6 is used to connect the sealing plate 12 and the water-retaining section 1 to realize the movement function of the buffer component. The inner side of the water-retaining section 1 is provided with a sliding groove. The slider 6 is set on the inner wall of the sliding groove. The sliding groove provides a sliding track for the slider 6. Both the slider 6 and the sliding groove are convex. The outer wall of the slider 6 is slidably connected to the inner wall of the sliding groove. The convex design prevents the slider 6 from falling out and ensures the stability of the sliding process.

[0027] Reference Figure 2 , Figure 4 A damper 5 is fixedly installed on the inner wall of the chute. The damper 5 is used to reduce the sliding speed of the slider 6 and suppress the violent shaking of the buffer assembly. A spring 7 is fixedly connected to the telescopic end of the damper 5. The spring 7 stores energy when impacted by the water flow and assists the buffer assembly to reset after the impact. The top end of the spring 7 is fixedly connected to the bottom of the slider 6, and the bottom end of the spring 7 is fixedly connected to the surface of the damper 5, so as to realize the stable connection between the spring 7, the damper 5, and the slider 6, and work together to play a buffering role. The support plate 3 is located directly above the turbine blade 8, so that the support plate 3 can effectively block the water flow and prevent the water flow from directly impacting the turbine blade 8. A diversion assembly is set below the support plate 3. The diversion assembly is used to separate impurities such as mud and sand in the water flow from the water and protect the turbine blade 8.

[0028] Reference Figures 1-3The diversion assembly includes an interceptor plate 2, which is arc-shaped. This arc design helps guide the water flow and better intercepts impurities such as silt. The two sides of the interceptor plate 2 are fixedly connected to the inner walls of the two sides of the water-blocking section 1, ensuring its stability and long-term stable operation. Overflow holes are provided on the interceptor plate 2. These overflow holes are circular and symmetrically spaced at the top of the interceptor plate 2, allowing water to flow through and impact the turbine blades 8 while simultaneously intercepting impurities such as silt. The two ends of the rotating shaft 9 are rotatably connected to the inner walls of the two sides of the water-blocking section 1 via bearings. To ensure the smooth rotation of the rotating shaft 9 and reduce frictional resistance, the surface of the turbine blade 8 contacts the top of the interceptor plate 2, allowing the turbine blade 8 to rotate under the impact of water flow. At the same time, it works in conjunction with the scraper 11 to clean the mud and sand on the interceptor plate 2. The scraper 11 is fixedly connected to the surface of the turbine blade 8. As the turbine blade 8 rotates, the scraper 11 scrapes off the mud and sand intercepted on the interceptor plate 2, realizing the separation of mud and sand from water. The scraper 11 is arc-shaped, and the outer side of the scraper 11 contacts the top of the interceptor plate 2. The arc-shaped scraper 11 fits the top of the interceptor plate 2, improving the effect of scraping mud and sand.

[0029] Working principle: When the water flows to the dam, it first comes into contact with the inclined support plate 3. Since the support plate 3 is inclined, it can effectively change the impact direction of the water flow and disperse the impact force of the water flow. At the same time, the buffer corrugations 10 on the top of the support plate 3 begin to play their role. The buffer corrugations 10 have a special corrugated structure. When the water flows, the water flow changes its direction at the concave and convex parts of the corrugations, consuming some kinetic energy, thereby further reducing the impact force on the support plate 3.

[0030] As the water flow continues to impact the support plate 3, the impact force on the support plate 3 gradually increases. At this time, the sealing plates 12 on both sides of the support plate 3 drive the slider 6 to begin sliding downward in the groove opened inside the water-blocking section 1. Both the slider 6 and the groove are convex. This special shape design can ensure that the slider 6 slides stably in the groove and prevent the slider 6 from falling out of the groove. During the downward sliding of the slider 6, it will squeeze the spring 7 below, causing the spring 7 to compress and deform. The spring 7 absorbs part of the energy generated by the water flow impact through its own elastic deformation. At the same time, the telescopic end of the damper 5 installed on the inner wall of the groove contracts. The function of the damper 5 is to provide damping force during the sliding of the slider 6, slow down the sliding speed of the slider 6, and avoid the support plate 3 from sliding down rapidly due to excessive water flow impact, which could damage other components of the device.

[0031] After the water flow impact ends, the spring 7 will try to rebound due to its own elastic potential energy, causing the support plate 3 to return to its original position. However, if only the elastic force of the spring 7 is relied upon, the support plate 3 may oscillate significantly during the return process, affecting the stability and service life of the device. At this time, the damper 5 plays a key role. It suppresses the rebound speed of the spring 7, allowing the support plate 3 to return to its initial position smoothly. Throughout the process, the sealing plate 12 always remains in a blocking state with the slide groove opened in the water-blocking section 1, effectively preventing water from entering the slide groove. Once water enters the slide groove, it will come into contact with the damper 5 and the spring 7, which may cause the damper 5 and the spring 7 to rust and age over time.

[0032] After being buffered by the support plate 3, the water flow continues downward, impacting the turbine blades 8. Under the impact of the water flow, the turbine blades 8 begin to rotate around the shaft 9. The two ends of the shaft 9 are rotatably connected to the inner walls of the two sides of the water-retaining section 1 through bearings, ensuring the smooth rotation of the turbine blades 8. Because scrapers 11 are fixedly connected to the surface of the turbine blades 8, the scrapers 11 are arc-shaped and their outer sides contact the top of the interceptor plate 2. The interceptor plate 2 is arc-shaped and its two sides are fixedly connected to the inner walls of the two sides of the water-retaining section 1. The interceptor plate 2 has circular and equally spaced openings. The overflow holes are symmetrically distributed. Water flows through the overflow holes and impacts the turbine blades 8. The interceptor plate 2 can intercept impurities such as silt in the water flow. As the turbine blades 8 rotate, the scraper 11 also rotates. During the rotation, the scraper 11 scrapes the silt intercepted by the interceptor plate 2 down from above, achieving the effect of separating silt and water. This not only prevents impurities such as silt from causing wear on the turbine blades 8 and affecting their service life, but also allows the turbine blades 8 to utilize water energy more efficiently for rotation, improving the dam's efficiency in utilizing water energy.

[0033] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A seepage-proof dam support structure for hydraulic engineering, comprising a water-retaining section (1) and an overflow section (4), characterized in that: The overflow section (4) is provided with a rotating shaft (9) and a turbine blade (8) in the middle, and both the overflow section (4) and the water-blocking section (1) are provided with buffer components; The buffer assembly includes a support plate (3), with sealing plates (12) fixedly connected to both sides of the support plate (3), and a slider (6) fixedly connected to the outer side of the sealing plate (12). A groove is provided on the inner side of the water-blocking section (1), and the slider (6) is set on the inner wall of the groove. A damper (5) is fixedly installed on the inner wall of the groove. A spring (7) is fixedly connected to the telescopic end of the damper (5). The top end of the spring (7) is fixedly connected to the bottom of the slider (6), and the bottom end of the spring (7) is fixedly connected to the surface of the damper (5). The support plate (3) is located directly above the turbine blades (8), and a diversion assembly is provided below the support plate (3).

2. The anti-seepage dam support structure for hydraulic engineering according to claim 1, characterized in that: The diversion assembly includes an interceptor plate (2), on which an overflow hole is provided. The two ends of the rotating shaft (9) are rotatably connected to the inner walls of the two sides of the water-blocking section (1) through bearings. The surface of the turbine blade (8) is in contact with the top of the interceptor plate (2).

3. The anti-seepage dam support structure for hydraulic engineering according to claim 1, characterized in that: The support plate (3) is inclined, and a buffer corrugation (10) is fixedly connected to the top of the support plate (3).

4. The anti-seepage dam support structure for water conservancy projects according to claim 1, characterized in that: The sealing plate (12) is strip-shaped, and the outer side of the sealing plate (12) is in sealed contact with the inner walls of both sides of the water-blocking section (1).

5. A seepage-proof dam support structure for hydraulic engineering according to claim 2, characterized in that: The interceptor plate (2) is arc-shaped, and the two sides of the interceptor plate (2) are fixedly connected to the inner walls of the two sides of the water-blocking section (1).

6. The anti-seepage dam support structure for hydraulic engineering according to claim 1, characterized in that: A scraper (11) is fixedly connected to the surface of the turbine blade (8). The scraper (11) is arc-shaped, and the outer side of the scraper (11) contacts the top of the interceptor plate (2).

7. The anti-seepage dam support structure for hydraulic engineering according to claim 1, characterized in that: Both the slider (6) and the groove are convex in shape, and the outer wall of the slider (6) is slidably connected to the inner wall of the groove.

8. The anti-seepage dam support structure for hydraulic engineering according to claim 1, characterized in that: The overflow holes are circular and symmetrically spaced at equal intervals on the top of the interceptor plate (2).

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