Water conservancy project drainage device

Abstract

The invention discloses a water conservancy project drainage device which comprises a first pipeline, a first filter assembly, a vertical pipe, a second filter assembly, a second inclined plate and a third filter plate. The first filtering assembly comprises a first cavity block with a first filtering plate and a through groove and is used for intercepting large-particle impurities and discharging the large-particle impurities through the through groove. The second filter assembly comprises a second filter plate, a sliding block, a rebound assembly and a resistance assembly, the second filter plate is slidably connected into the first cavity block through the sliding block, and variable resistance generated when water flow impacts the resistance plate and the second filter plate is matched with the rebound assembly to drive the second filter plate to reciprocate. The movement can automatically vibrate off impurities attached to the second filter plate and assist in cleaning impurities on the first filter plate. The vertical pipe is connected below the cavity block I, is internally provided with an inclined plate II and a filter plate III, and is used for collecting, guiding and discharging impurities and further filtering water flow. Through two-stage filtration and self-cleaning design, efficient and continuous impurity separation and filtration without external power are realized, blockage is effectively prevented, and the maintenance intensity is reduced.

Description

Technical Field

[0001] This invention relates to the field of water conservancy engineering technology, specifically to a drainage device for water conservancy projects. Background Technology

[0002] In water conservancy projects, municipal drainage, and farmland irrigation, drainage systems are crucial equipment for ensuring unobstructed waterways, preventing flooding, and achieving effective water resource utilization. Water flow, especially from rivers, ditches, and reservoirs, typically carries a large amount of impurities such as leaves, plastics, sand, and silt. If these impurities directly enter drainage pipes or subsequent treatment facilities, they can easily cause pipe blockages, pump damage, and overloading of filtration systems, severely impacting the normal operating efficiency and reliability of the drainage system.

[0003] Currently common drainage systems typically have static filters or grilles at the inlet to intercept large debris. However, these systems have significant shortcomings: 1. The intercepted impurities will continuously accumulate on the surface of the filter screen. If not cleaned in time, they will rapidly reduce the water flow area, increase water flow resistance, and even completely block the channel, resulting in a sharp decline in drainage efficiency or even failure.

[0004] 2. Cleaning impurities on the filter screen usually requires stopping the machine and relying on manual retrieval or backwashing, which is a cumbersome and inefficient process, and it is difficult to achieve timely maintenance under high load or unattended operating conditions.

[0005] 3. For wastewater containing a mixture of particles of different sizes, a single static filtration structure is insufficient for graded treatment. Fine particles can easily penetrate or adhere to the filter screen, making cleaning even more difficult. Summary of the Invention

[0006] The technical problem to be solved by the present invention is to overcome the above-mentioned technical defects and provide a drainage device for water conservancy projects.

[0007] To achieve the above objectives, the present invention provides the following technical solution: A drainage device for a water conservancy project includes a pipeline, a filter assembly, a riser, a filter assembly, an inclined plate, and a filter plate. The rear end of the pipeline is connected to the filter assembly. The riser is connected to the filter assembly, and a hole is formed on its rear end face. The filter assembly is connected inside the filter assembly. The inclined plate is fixedly connected inside the riser. The filter plate is fixedly connected to the riser through the hole.

[0008] Furthermore, the filter assembly includes a cavity block, a filter plate, a through groove, and several sliding grooves. The filter plate is fixedly connected to the lower end of the cavity block. The through groove is formed between the lower end of the cavity block and the filter plate. Several sliding grooves are formed on both sides of the upper and lower end faces of the cavity block.

[0009] Furthermore, the second filter assembly includes a second filter plate, a slider, several rebound components, and two resistance components. The slider is fixedly connected to both sides of the upper and lower end faces of the second filter plate, and the slider is slidably connected in the groove. Several rebound components are connected to the four corners of the rear end face of the second filter plate. Two resistance components are connected to both sides of the rear end face of the second filter plate.

[0010] Furthermore, the rebound assembly includes a hollow tube, a solid tube, and a spring. The solid tube is slidably connected within the hollow tube. The spring is disposed within the hollow tube, with its two ends respectively abutting against the inner bottom wall of the hollow tube and the end of the solid tube extending into the hollow tube.

[0011] Furthermore, the resistance assembly includes a connecting plate, a fixed shaft, and a resistance plate. The connecting plate is fixedly connected to the rear end face of the second filter plate. The fixed shaft is fixedly connected to one side end face of the connecting plate. The resistance plate is rotatably connected to the fixed shaft.

[0012] Furthermore, the first pipe is connected to the front end of the first cavity block, and the second pipe is connected to the rear end of the first cavity block.

[0013] Furthermore, the rear end of the second pipeline is connected to the second cavity block, and the rear end of the second cavity block is connected to the third pipeline.

[0014] Furthermore, the lower end of the cavity block one is connected to the riser pipe.

[0015] Furthermore, the rear end face of the riser is connected to pipe four.

[0016] Furthermore, an inclined plate is rotatably connected to the second cavity block.

[0017] The advantages of this invention compared to existing technologies are: 1. This invention achieves two-stage filtration of impurities in water flow by setting up filter assembly one and filter assembly two. Filter plate one first intercepts large debris and guides it into the riser for discharge through a channel; filter plate two further filters fine particles, improving filtration accuracy and drainage water quality.

[0018] 2. An innovative self-cleaning filter assembly two was designed. Utilizing the kinetic energy of the water flow, the filter plate two impacts the resistance plate, driving it to reciprocate within the chute. This reciprocating motion serves two purposes: firstly, it shakes off fine impurities adhering to the mesh of filter plate two, preventing clogging; secondly, the reciprocating vibration of filter plate two also pushes forward impurities accumulated on filter plate one, causing them to fall through the channel into the riser and be discharged, thus achieving auxiliary cleaning of the primary filtration surface.

[0019] 3. The ingenious structural design requires no external power. The entire self-cleaning process is driven entirely by water flow. The resistance is automatically adjusted by the rotation of the resistance plate, and works in conjunction with the rebound component to form a periodic reciprocating motion. It is energy-efficient and highly suitable for water conservancy projects in the field, where electricity is inconvenient, or where long-term unattended operation is required.

[0020] 4. The riser and its internal inclined plate two and filter plate three constitute independent channels for impurity settling and discharge. Large mass impurities slide down and are discharged under the action of gravity along inclined plate two, while filter plate three ensures that only water that meets the requirements can enter the subsequent pipeline, realizing effective separation of water and solids and guiding their respective paths. Attached Figure Description

[0021] Figure 1 This is a three-dimensional diagram of the unfolded invention. Figure 1 ; Figure 2 This is a three-dimensional diagram of the unfolded invention. Figure 2 ; Figure 3 This is a cross-sectional view of the present invention. Figure 1 ; Figure 4 This is a cross-sectional view of the present invention. Figure 2 ; Figure 5 This is a three-dimensional schematic diagram of the filter assembly of the present invention; Figure 6 This is a three-dimensional schematic diagram of the filter component of the present invention.

[0022] Figure 7 This is a cross-sectional schematic diagram of the springback assembly of the present invention; Figure 8 This is a three-dimensional schematic diagram of the resistance component of the present invention.

[0023] As shown in the figure: 1. Pipeline 1; 2. Filter assembly 1; 201. Cavity block 1; 202. Filter plate 1; 203. Through groove; 204. Slide groove; 3. Pipeline 2; 4. Cavity block 2; 5. Pipeline 3; 6. Riser; 7. Pipeline 4; 8. Filter assembly 2; 801. Filter plate 2; 802. Slider; 803. Rebound assembly; 8031. Hollow tube; 8032. Solid tube; 8033. Spring; 804. Resistance assembly; 8041. Connecting plate; 8042. Fixed shaft; 8043. Resistance plate; 9. Inclined plate 1; 10. Inclined plate 2; 11. Filter plate 3. Detailed Implementation

[0024] The specific embodiments of the present invention will be further described below with reference to the accompanying drawings. Identical components are indicated by the same reference numerals.

[0025] It should be noted that the terms “front,” “back,” “left,” “right,” “up,” and “down” used in the following description refer to the directions shown in the attached diagrams, while the terms “inner” and “outer” refer to the directions toward or away from the geometric center of a specific component, respectively.

[0026] To make the content of this invention easier to understand, the technical solutions in the embodiments of this invention will be clearly and completely described below with reference to the accompanying drawings.

[0027] like Figure 1 and Figure 8 As shown, the technical solution of the present invention is as follows: a drainage device for water conservancy projects, mainly including a water inlet pipe 1, a filter assembly 2 for primary filtration and impurity separation, a filter assembly 8 for secondary filtration and self-cleaning function, a riser 6 for impurity collection and discharge, and subsequent components such as a cavity block 4 and a pipe 5. The entire device constitutes a series water flow channel, realizing the step-by-step treatment of impurities.

[0028] Filter assembly 2 constitutes the primary filtration and diversion unit of the device. Its main body is a hollow chamber block 201, typically made of corrosion-resistant metal or engineering plastic. The front end of chamber block 201 is sealed to pipe 1 via flange, thread, or socket to introduce the water to be treated. The rear end of chamber block 201 is connected to pipe 3 in a similar manner to drain the pre-filtered water.

[0029] Inside chamber 201, near the bottom, a filter plate 202 is horizontally fixed. The filter plate 202 has relatively large mesh openings, primarily used to intercept larger debris in the water flow, such as leaves, plastic bags, and stones. The filter plate 202 is not tightly fitted to the bottom of the inner wall of chamber 201, but rather has a certain height gap, which forms the channel 203. The channel 203 is the key path for large impurities to escape from the main water flow channel. Large debris intercepted by the filter plate 202 will accumulate on it under the influence of gravity and slight disturbances in the water flow, and may fall through the channel 203.

[0030] On the inner wall of cavity block 201, specifically on both sides of its upper and lower end faces, there is a longitudinal sliding groove 204. These four sliding grooves 204 are opposite each other and together form a sliding track.

[0031] Filter assembly 2 (8) is the core component of this invention for achieving fine filtration and automatic cleaning. It is installed as an integral module inside filter assembly 1 (2). The main body of filter assembly 2 (8) is a filter plate 2 (801) with a mesh size smaller than that of filter plate 1 (202), used to intercept fine particles that pass through or wrap around filter plate 1 (202). A slider 802 is fixedly connected to the upper and lower edges of filter plate 2 (801). The shape of these sliders 802 matches the grooves 204 inside cavity 1 (201), allowing the entire filter assembly 2 (8) to slide along the water flow direction inside cavity 1 (201) through the cooperation of the sliders 802 and the grooves 204.

[0032] To achieve the automatic reciprocating motion of filter plate 2 801, a drive and reset mechanism is provided on the end face of filter plate 2 801 facing away from the incoming water direction. Specifically, a spring assembly 803 is connected to each of the four corners of the rear end face of filter plate 2 801. The specific structure of the spring assembly 803 is as follows: it includes a hollow tube 8031 ​​fixed to the inner wall of cavity block 1 201, a solid tube 8032 with one end extending into the hollow tube 8031, and a spring 8033 disposed outside the solid tube 8032 and located inside the hollow tube 8031. The solid tube 8032 can slide axially within the hollow tube 8031. One end of the spring 8033 abuts against the inner bottom wall of the hollow tube 8031, and the other end abuts against the end or shoulder of the solid tube 8032 extending into it. When filter plate 801 moves backward, it pushes solid tube 8032 into hollow tube 8031, thereby compressing spring 8033, which stores elastic potential energy. When the backward thrust decreases, spring 8033 releases its potential energy, pushing solid tube 8032 and filter plate 801 connected to it to return to their original position.

[0033] On the left and right sides of the rear end face of filter plate 801, a resistance component 804 is connected. Each resistance component 804 includes a connecting plate 8041 vertically fixed to filter plate 801, a fixed shaft 8042 horizontally fixed to the connecting plate 8041, and a resistance plate 8043 rotatable around the fixed shaft 8042. Under normal conditions, the resistance plate 8043 may be at a certain angle due to gravity or counterweight. When water flows, the resistance plate 8043 is subjected to water pressure, and the size of its bearing area changes with the angle between the plate surface and the direction of water flow, thus providing variable fluid resistance for the movement of filter plate 801.

[0034] The impurity treatment unit mainly consists of a riser 6 and its internal components. The riser 6 is a vertically or inclined tube, its upper end connected to the bottom of the cavity block 201, positioned directly opposite or below the through channel 203, used to receive large mass impurities falling from the through channel 203 and impurities sliding off the filter plate 202. Inside the riser 6, an inclined plate 10 is fixedly installed. The inclined plate 10 slopes downwards towards the side wall of the riser 6, its function being to guide the flow. Falling impurities, after landing on the inclined plate 10, slide along the inclined surface towards the side wall of the riser 6 under gravity, and finally exit from the opening at the bottom of the riser 6, thus achieving impurity collection and automatic discharge.

[0035] A hole is provided on the rear end face of riser 6. A filter plate 311 is fixedly installed in this hole. The mesh of filter plate 311 can be relatively fine, and its main function is to prevent impurities that have entered riser 6 from being carried back into the main water channel by the internal water flow disturbance. After the initial filtration by filter plate 202, the water flow will carry some lighter small particles that failed to fall from the channel 203. This part of the water flow will pass through filter plate 311 when it flows through the riser 6 area. Filter plate 311 can block these fine particles in the cavity of riser 6, so that they will eventually settle under the action of gravity and be discharged with the larger impurities. The clean water flow passes through filter plate 311 and enters the subsequent pipe 4 7. Pipe 4 7 is sealed to the perimeter of the hole in riser 6 to discharge this further filtered water.

[0036] The water flowing from the main channel of chamber 201 and from pipe 4 7 can converge into pipe 2 3. Pipe 2 3 transports the water to chamber 2 4. Chamber 2 4 acts as a buffer or secondary sedimentation chamber, and an inclined plate 9 is rotatably connected inside. The inclined plate 9 functions similarly to a component in an inclined plate sedimentation tank, further slowing down the water flow and promoting the settling of extremely small suspended particles in the water. Finally, the relatively clean water flows out from the rear end of chamber 2 4 through pipe 3 5, entering the next stage facility or being directly discharged.

[0037] In the specific process, raw water containing impurities of various sizes enters chamber 201 through pipe 1. The water flow first impacts the filter plate 202. Larger debris (such as stones and branches) is directly intercepted by the filter plate 202 and accumulates on its surface. Some of the larger debris, under the influence of gravity and water flow, falls directly into the riser 6 below through the channel 203 between the filter plate 202 and the bottom of the chamber. The debris falling into the riser 6 lands on the inclined plate 10 and slides out of the riser along the inclined surface, achieving separation and discharge.

[0038] The water flowing through filter plate 202 still contains a considerable number of fine particles. This portion of the water continues to flow towards filter plate 801. The fine particles are intercepted by filter plate 801 and adhere to its surface. Simultaneously, the continuous impact of the water flow generates a backward thrust on filter plate 801. This thrust propels the entire filter assembly 801 to overcome the elastic force of the spring 8033 in the rebound assembly 803 and move backward along the slide groove 204. During this process, the resistance plate 8043 connected to filter plate 801 fully unfolds, directly bearing the impact of the water flow and providing significant fluid resistance. This allows filter plate 801 to move backward a large distance, and spring 8033 is significantly compressed, storing a large amount of energy.

[0039] As the water flow continuously washes over the resistance plate 8043, since the resistance plate 8043 is rotatably connected to the fixed shaft 8042, it will rotate under the action of water pressure, causing its surface to gradually become parallel to the direction of water flow. As the resistance plate 8043 rotates, its water-facing area continuously decreases, and the thrust (resistance) generated by the water flow on it also decreases rapidly. At this time, the elastic potential energy stored in the compressed spring 8033 becomes the dominant force, which pushes the solid tube 8032 to extend, thereby causing the filter plate 801 to quickly spring back forward (in the direction of incoming water).

[0040] As filter plate 801 springs forward, its inertia and potential vibrations effectively shake off or remove fine particulate impurities adhering to its mesh, achieving automatic dust removal. When filter plate 801 returns to its original position, the water flow again impacts the resistance plate 8043, causing it to rotate back to the angle providing maximum resistance. The water flow force then overcomes the gradually increasing spring force, pushing filter plate 801 backward. This cycle repeats continuously, with filter plate 801 performing periodic back-and-forth motion driven by the water flow, constantly cleaning itself and preventing mesh clogging.

[0041] The reciprocating motion of filter plate 2801 not only cleans itself, but also, as it bounces forward, it squeezes or disturbs the impurities accumulated on the rear surface of filter plate 1202. This action helps loosen large pieces of impurities accumulated on filter plate 1202 that have not fallen off the through channel 203 on their own, and with the assistance of water flow, they are pushed into or fall into the through channel 203, and then fall into the riser 6 for discharge. This enhances the cleaning effect on the primary filtration surface.

[0042] The water filtered from filter plate 2 (801) and some water flowing around the edge of filter plate 1 (202) enters the riser 6 area. Here, the water passes through filter plate 3 (11), which intercepts residual fine particles. The clean water then passes through filter plate 3 (11) into pipe 4 (7), where it mixes with the water flowing from the main channel of chamber 1 (201) and enters pipe 2 (3). The water then enters chamber 2 (4), where it undergoes further flow stabilization and sedimentation by inclined plate 1 (9), and finally, the clean water is discharged from pipe 3 (5). Throughout this process, impurities of all sizes are intercepted in stages and discharged through different paths, while the water flow remains unobstructed, achieving a highly efficient, continuous, and self-cleaning drainage filtration function.

[0043] The primary interception and gravity separation of large particles are achieved through the cooperation of filter plate 202 and through channel 203; fine filtration of small particles is achieved through filter plate 801; innovatively, the energy of the water flow itself is used to drive a mechanical system consisting of filter plate 801, slider 802 / channel 204, spring assembly 803, and resistance assembly 804, causing filter plate 801 to produce periodic reciprocating motion, thereby achieving the dual functions of automatic dust removal and auxiliary cleaning of filter plate 1; finally, the collection and drainage of impurities and the final filtration of water are completed through riser 6, inclined plate 10, and filter plate 11. The entire device has a compact structure, requires no external power, and realizes automatic and efficient filtration and maintenance in the drainage process, greatly improving the reliability and automation level of the water conservancy drainage system.

[0044] The present invention and its embodiments have been described above. This description is not restrictive, and the accompanying drawings are only one embodiment of the present invention; the actual structure is not limited thereto. In conclusion, if those skilled in the art are inspired by this description and design similar structures and embodiments without departing from the spirit of the invention, such designs should fall within the protection scope of the present invention.

[0045] In the description of this specification, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0046] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0047] Although embodiments of this application have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting this application. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of this application.

Claims

1. A drainage device for a water conservancy project, characterized in that, include: Pipeline 1 (1), the rear end of which is connected to filter assembly 1 (2); Riser (6), the riser (6) is connected to filter assembly (2), and the rear end face of the riser (6) has a hole; Filter assembly two (8), which is connected to filter assembly one (2); Inclined plate two (10), the inclined plate two (10) is fixedly connected to the riser (6); Filter plate three (11) is fixedly connected to the riser pipe (6) through holes.

2. A drainage device for water conservancy projects according to claim 1, characterized in that: The filter assembly one (2) includes: Cavity block one (201), and filter plate one (202) is fixedly connected to the lower end of cavity block one (201); A through groove (203) is provided between the lower end of the cavity block (201) and the filter plate (202); Slides (204), several of the slides (204) are opened on both sides of the upper and lower end faces of cavity block one (201).

3. A drainage device for water conservancy projects according to claim 2, characterized in that: The second filter component (8) includes: Filter plate two (801), both the upper and lower end faces of the filter plate two (801) are fixedly connected to sliders (802), and the sliders (802) are slidably connected in the slide groove (204); Spring-rebound assembly (803), several of the spring-rebound assemblies (803) are connected to the four corners of the rear end face of filter plate two (801); Resistance components (804), two of the resistance components (804) are connected to both sides of the rear end face of filter plate two (801).

4. A drainage device for a water conservancy project according to claim 3, characterized in that: The springback assembly (803) includes: A hollow tube (8031) is slidably connected to a solid tube (8032). A spring (8033) is disposed in a hollow tube (8031), and the spring (8033) abuts against the hollow tube (8031) and the solid tube (8032).

5. A drainage device for a water conservancy project according to claim 3, characterized in that: The resistance component (804) includes: A connecting plate (8041) is fixedly connected to the rear end face of filter plate two (801); A fixed shaft (8042) is fixedly connected to one end face of the connecting plate (8041); A resistance plate (8043) is rotatably connected to a fixed shaft (8042).

6. A drainage device for a water conservancy project according to claim 2, characterized in that: Pipeline 1 (1) is connected to the front end of cavity block 1 (201), and pipeline 2 (3) is connected to the rear end of cavity block 1 (201).

7. A drainage device for a water conservancy project according to claim 6, characterized in that: The rear end of the second pipe (3) is connected to the cavity block (4), and the rear end of the cavity block (4) is connected to the third pipe (5).

8. A drainage device for a water conservancy project according to claim 2, characterized in that: The lower end of the cavity block (201) is connected to the riser (6).

9. A drainage device for a water conservancy project according to claim 1, characterized in that: Pipeline 4 (7) is connected to the rear end of the riser (6).

10. A drainage device for a water conservancy project according to claim 7, characterized in that: The cavity block 2 (4) is rotatably connected to the inclined plate 1 (9).

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