Water conservancy and hydropower construction drainage device facilitating impurity separation

The drainage device, designed with a three-layer structure, utilizes centrifugal force and vortex sedimentation technology to solve the clogging problem caused by impurity accumulation, achieving efficient impurity separation and water resource recycling.

CN224388297UActive Publication Date: 2026-06-23SHANDONG WATER GENERAL CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SHANDONG WATER GENERAL CO LTD
Filing Date
2025-07-08
Publication Date
2026-06-23

AI Technical Summary

Technical Problem

Existing drainage devices are prone to accumulating impurities outside the filter screen, leading to blockages and affecting drainage efficiency and equipment stability.

Method used

It adopts a three-layer structure design, including a grid, a conical filter, and a labyrinth-shaped baffle. Combined with built-in fan blades, it uses centrifugal force and water flow vortex to first block large particles of impurities, then settle and filter them, and finally ensure clean water flow through the filter.

Benefits of technology

It effectively reduces the probability of blockage, improves drainage efficiency and equipment stability, and ensures the recycling of water resources.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN224388297U_ABST
    Figure CN224388297U_ABST
Patent Text Reader

Abstract

The utility model discloses a water conservancy and hydropower construction drainage device convenient to impurity separation, specifically related to water conservancy engineering technical field, including drainage device shell, the drainage device shell bottom end is established with the sliding groove, the sliding groove is inlayed with the sand trap, and the sand trap includes the pool body, the pool body inner surface is connected with the labyrinth guide vane, the pool body bottom is installed with the sealing groove through the inlaying, the sealing groove is connected with the sealing strip in, the sealing strip bottom is connected with the collection box, one side of sand trap is connected with no.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] This utility model relates to the field of water conservancy engineering technology, and more specifically, to a drainage device for water conservancy and hydropower construction that facilitates the separation of impurities. Background Technology

[0002] Water conservancy and hydropower engineering operations are mostly water-related, often requiring the removal of accumulated water from the site before proceeding with subsequent work processes. Drainage systems are therefore essential to remove water from the construction site and ensure smooth operation. However, existing drainage systems can only block impurities outside the filter screen and cannot separate them. Adding an impurity separation device inside the drainage system can effectively separate sediment and impurities, preventing blockages caused by sediment accumulation, improving drainage efficiency and stability, extending equipment lifespan, and promoting water resource recycling.

[0003] Existing publication number CN222685674U discloses a drainage device for water conservancy and hydropower construction, including a universal wheel. A base plate is fixedly connected to one side of the universal wheel, and a water pump is fixedly connected to the top surface of the base plate. A drain pipe is fixedly connected to one side of the water pump. The advantage is that impurities can be filtered through the filter plate, and the water flow impacts the water wheel, which drives the cleaning frame to rotate. Furthermore, under the compression of the spring, the cleaning brush is kept in close contact with the filter plate. As the cleaning frame rotates, the cleaning brush scrapes off impurities from the filter plate. The scraped impurities fall into the collection frame for collection. When a certain amount of impurities accumulates in the collection frame, the electric telescopic rod can be activated to move the bottom cover downwards, allowing the collection frame to be pulled out for cleaning. This not only achieves self-cleaning of the filter plate but also facilitates the cleaning of impurities inside the filter box. The inventors discovered the following problems with the existing technology during the development of this utility model:

[0004] Most existing drainage devices simply trap impurities outside the filter screen. During drainage, this can easily lead to blockages due to impurity accumulation, affecting drainage efficiency. Existing devices use internal filters and cleaning brushes. Water flow drives the cleaning brushes to rotate, continuously cleaning impurities trapped on the filter screen and scraping them into a collection frame. This prevents blockages caused by impurity accumulation, maintaining drainage efficiency and collecting impurities for later processing. However, this scraping device uses water flow to drive the cleaning brush, and impurities entering the rotating structure during operation can easily affect the rotation process, potentially causing the cleaning brush to stop working. Therefore, to address these issues, a drainage device for water conservancy and hydropower construction that facilitates impurity separation is proposed. Utility Model Content

[0005] In order to overcome the above-mentioned defects of the prior art, the present invention provides a drainage device for water conservancy and hydropower construction that facilitates the separation of impurities, so as to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a drainage device for water conservancy and hydropower construction that facilitates impurity separation, comprising a drainage device shell, a sliding groove at the bottom of the drainage device shell, a sedimentation tank embedded in the sliding groove, the sedimentation tank comprising a tank body, a labyrinth-shaped guide plate connected to the inner surface of the tank body, a sealing groove embedded at the bottom of the tank body, a sealing strip connected inside the sealing groove, a collection box connected to the bottom end of the sealing strip, a No. 1 water outlet pipe connected to one side of the sedimentation tank, and a filter screen provided in the inner cavity of the No. 1 water outlet pipe near the sedimentation tank, and a No. 1 water inlet pipe connected to the side of the sedimentation tank away from the No. 1 water outlet pipe.

[0007] Preferably, a dynamic filtration and separation device is connected to the side of the No. 1 water inlet pipe away from the sedimentation tank, and the No. 1 water inlet pipe and the dynamic filtration and separation device are connected by a flange.

[0008] Preferably, the dynamic filtration and separation device includes a grid, the inner cavity of which is provided with a conical filter screen, the inner cavity of which is rotatably connected to a central shaft, and the side of the central shaft away from the conical filter screen is rotatably connected to an internal fan blade.

[0009] Preferably, the No. 1 outlet pipe is bolted to the side away from the sedimentation tank and a No. 2 inlet pipe is connected to the side of the No. 2 inlet pipe away from the No. 1 outlet pipe, and a water pump is connected to the side of the No. 2 inlet pipe away from the No. 1 outlet pipe.

[0010] Preferably, the water pump is connected to the No. 2 outlet pipe on the side away from the No. 2 inlet pipe, and the bottom of the water pump is fixedly mounted with a base by bolts.

[0011] Preferably, an air vent valve is threadedly connected to one side of the outer surface of the first water outlet pipe, and a vacuum pressure gauge is threadedly connected to one side of the outer surface of the second water inlet pipe.

[0012] Preferably, a pressure alarm light is installed on one side of the drainage device housing, and the pressure alarm light is fixed to the drainage device housing by bolts.

[0013] Preferably, a cover plate is installed on the top of the drainage device housing via a folding buckle, a roller assembly is fixedly installed on the bottom of the drainage device housing via bolts, and a sewage discharge pipe is connected to one side of the sedimentation tank.

[0014] The technical effects and advantages of this utility model are as follows:

[0015] Compared with existing technologies, this drainage device for water conservancy and hydropower construction, which facilitates impurity separation, establishes a grid and a conical filter at the No. 1 inlet, with built-in fan blades inside the conical filter. The grid can block large impurities, and the conical filter, due to its structure, can generate turbulence using centrifugal force to carry some impurities to the outside of the filter, reducing the probability of clogging. The built-in fan blades inside the conical filter can break up aquatic plants and other debris that enter the filter, causing impurities to settle quickly with less force. Impurities are blocked and treated at the inlet, which can effectively reduce the number of impurities entering the filter and facilitate subsequent impurity separation processes. Furthermore, this structure is not prone to clogging, does not affect the water intake efficiency, and has a significant filtration effect.

[0016] Compared with existing technologies, this drainage device for water conservancy and hydropower construction, which facilitates impurity separation, connects the No. 1 inlet to one side of the sedimentation tank. Water treated by impurities enters the sedimentation tank through the inlet. The water flow impacts the labyrinth-shaped guide wall, which slows down the impact. Due to the high density of impurities, they slowly sink to the bottom as they flow with the labyrinth-shaped guide wall. The curved design guides the water flow to form a controllable vortex, avoiding turbulence and backflow, and preventing the settled impurities from moving. By setting up a No. 1 outlet pipe at the top of the sedimentation tank, the water flow that has completed impurity separation can be extracted. A filter screen is installed at the outlet of the No. 1 outlet pipe for a second impurity blocking, preventing unsettled impurities from being sucked into the water pump by suction. The three-layer structure first blocks for pretreatment, then separates the impurities through sedimentation, and finally blocks them again, so that the impurities are separated from the discharged water flow. In addition, the sedimentation tank is increased, reducing the impact of blockage caused by impurity accumulation on the drainage rate and increasing the stability of the operation. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of this utility model.

[0018] Figure 2 This is a schematic diagram of the internal three-dimensional structure of this utility model.

[0019] Figure 3 This is a schematic diagram of the unfolded structure of the dynamic filtration and separation device of this utility model.

[0020] Figure 4 This is a schematic diagram of the unfolded structure of the sedimentation tank of this utility model.

[0021] The attached diagram is labeled as follows: 1. Drainage device housing; 2. Sliding trough; 3. Sedimentation tank; 4. No. 1 outlet pipe; 5. Filter screen; 6. No. 1 inlet pipe; 7. Dynamic filtration and separation device; 8. No. 2 inlet pipe; 9. Water pump; 10. No. 2 outlet pipe; 11. Base; 12. Air vent valve; 13. Vacuum pressure gauge; 14. Pressure alarm light; 15. Cover plate; 16. Roller assembly; 17. Sewage discharge pipe; 301. Tank body; 302. Labyrinth-shaped guide plate; 303. Sealing groove; 304. Sealing strip; 305. Collection box; 701. Grid; 702. Conical filter screen; 703. Central shaft; 704. Built-in fan blade. Detailed Implementation

[0022] 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. Example 1

[0023] As attached Figures 1 to 4 The drainage device for water conservancy and hydropower construction, which facilitates the separation of impurities, includes a drainage device shell 1. A sliding groove 2 is provided at the bottom of the drainage device shell 1. A sedimentation tank 3 is embedded in the sliding groove 2. The sedimentation tank 3 includes a tank body 301. A labyrinth-shaped guide plate 302 is connected to the inner surface of the tank body 301. A sealing groove 303 is installed at the bottom of the tank body 301 through an embedded part. A sealing strip 304 is connected inside the sealing groove 303. A collection box 305 is connected to the bottom end of the sealing strip 304. A No. 1 water outlet pipe 4 is connected to one side of the sedimentation tank 3. A filter screen 5 is provided in the inner cavity of the No. 1 water outlet pipe 4 near the sedimentation tank 3. A No. 1 water inlet pipe 6 is connected to the side of the sedimentation tank 3 away from the No. 1 water outlet pipe 4.

[0024] Among them: the outer shell 1 of the drainage device protects the internal components from impact and wear and provides support; the sliding groove 2 provides sliding positioning for the collection box 305; the sedimentation tank 3 can separate impurities inside the drainage equipment by settling impurities through its internal structure; the tank body 301 provides space for water flow deceleration and sediment settling and is the core load-bearing structure of the sedimentation tank 3; the labyrinth-shaped guide plate 302 decelerates the water flow and uses the bend characteristics to achieve controllable vortex to prevent backflow; the turbulent flow carries up the settled impurities; the sealing groove 303 and the sealing strip 304 form a sealed space to prevent air from entering the interior and to prevent water from flowing out; the collection box 305 collects the settled impurities and can be concentrated and carried out when the operation stops; the first outlet pipe 4 discharges the water inside the sedimentation tank 3; the filter screen 5 prevents unsettled impurities from flowing out with the water flow and controls them to continue to settle inside the sedimentation tank 3; the first inlet pipe 6 introduces water into the sedimentation tank 3 to settle impurities and achieve impurity separation. Example 2

[0025] Based on Example 1, the solution in Example 1 will be further described in detail below with reference to the specific working method, such as... Figures 1 to 4 As shown below, see details:

[0026] In a preferred embodiment, a dynamic filtration and separation device 7 is connected to the side of the No. 1 water inlet pipe 6 away from the sedimentation tank 3. The dynamic filtration and separation device 7 is the first stage for blocking impurity separation and can be connected to the No. 1 water inlet pipe 6 through a flange to extend the water pipe to adapt to various construction conditions. The No. 1 water inlet pipe 6 and the dynamic filtration and separation device 7 are connected by a flange.

[0027] In a preferred embodiment, the dynamic filtration and separation device 7 includes a grid 701, which prevents large particles of impurities from flowing into the pipe and reduces the load on subsequent treatment equipment. The inner cavity of the grid 701 is provided with a conical filter 702, which can guide the water flow to generate rotational motion by its structure, and use centrifugal force to throw out impurities with higher density. The inner cavity of the conical filter 702 is rotatably connected to a central shaft 703, which can provide support and operation for the built-in fan blades 704. The side of the central shaft 703 away from the conical filter 702 is rotatably connected to the built-in fan blades 704, which break up the water plants and other impurities that are sucked in, facilitating subsequent sedimentation, and can generate a swirling flow to push the impurities and improve the separation efficiency.

[0028] In a preferred embodiment, the No. 1 outlet pipe 4 is bolted to the side away from the sedimentation tank 3 and the No. 2 inlet pipe 8 is used to transmit the separated water. The side of the No. 2 inlet pipe 8 away from the No. 1 outlet pipe 4 is connected to a water pump 9, which is the core of the drainage equipment and the power source of the whole equipment.

[0029] In a preferred embodiment, the water pump 9 is connected to the second outlet pipe 10 on the side away from the second inlet pipe 8. The second outlet pipe 10 discharges the separated water and serves as a carrier for transmission. The bottom of the water pump 9 is fixedly mounted with a base 11 by bolts. The base 11 provides a platform for installing the water pump 9 and serves as a support for stability.

[0030] In a preferred embodiment, an air vent valve 12 is threadedly connected to one side of the outer surface of the No. 1 water outlet pipe 4. The air vent valve 12 expels the air inside the equipment, thereby accelerating the pumping rate during startup. A vacuum pressure gauge 13 is threadedly connected to one side of the outer surface of the No. 2 water inlet pipe 8. The vacuum pressure gauge 13 monitors the pressure at the water inlet pipe and transmits information to the pressure alarm light 14 when insufficient power is caused by internal pressure problems.

[0031] In a preferred embodiment, a pressure alarm light 14 is installed on one side of the drainage device housing 1. The pressure alarm light 14 receives information from the vacuum pressure gauge 13 and issues a warning so that it can be detected in time to avoid damage to the machine's interior due to pressure problems. The pressure alarm light 14 is fixedly installed to the drainage device housing 1 by bolts.

[0032] In a preferred embodiment, a cover plate 15 is installed at the top of the drainage device housing 1 via a folding buckle. The cover plate 15 provides a repair platform when problems occur inside. A roller assembly 16 is fixedly installed at the bottom of the drainage device housing 1 via bolts. The roller assembly 16 facilitates the movement of the drainage device and allows for quick relocation of operations. A sewage discharge pipe 17 is connected to one side of the sedimentation tank 3. After drainage, the sewage discharge pipe 17 removes the remaining water from the sedimentation tank 3 to clean impurities.

[0033] In this embodiment, the water pump 9, the exhaust valve 12, the vacuum pressure gauge 13, and the pressure alarm light 14 are all commercially available devices known to those skilled in the art. They can be customized or selected according to actual needs. Here, we are only using them without making any structural or functional improvements, and we will not elaborate further.

[0034] The working process of this utility model is as follows: First, according to the extraction depth of the work site, connect the water pipe between the No. 1 water inlet pipe 6 and the dynamic filtration and separation device 7. Then, place the connected dynamic filtration and separation device 7 into the extraction area, open the cover plate 15, adjust the required air pressure of the vacuum pressure gauge 13, open the exhaust valve 12 to discharge the gas inside the device, and then start the machine. The water pump 9 starts working, and the pressurized water is drawn into the dynamic filtration and separation device 7. The grid 701 blocks large particles of impurities from flowing into the pipe. The conical filter screen 702 uses its own structure to rotate the water flow, forming centrifugal force to throw out the denser impurities. The built-in fan blades 704 start to rotate with the water flow, and suck in water plants and other impurities. The material is broken down, and a swirling current is generated to push the impurities away. The water flows into the sedimentation tank 3 through the first inlet pipe 6, impacting the labyrinth-shaped guide plate 302 and starting to flow. During the flow, impurities begin to settle. At the bend, the bend's characteristics create a vortex to prevent backflow. The turbulence causes impurities to be thrown up and settle into the collection box 305. The water flows with the guide plate to the end of the sedimentation tank 3. The first outlet pipe 4 draws out the water, and the filter screen 5 blocks the unsettled impurities. The water flows through the first outlet pipe 4 to the second inlet pipe 8 and finally out of the drainage device through the second outlet pipe 10. Finally, the machine is turned off, the sewage pipe 17 is opened to drain the remaining water, and then the collection box 305 is pulled out to empty the impurities.

[0035] The above describes the working principle of this drainage device for water conservancy and hydropower construction that facilitates the separation of impurities.

Claims

1. A drainage device for water conservancy and hydropower construction that facilitates the separation of impurities, comprising a drainage device housing (1), characterized in that: The drainage device housing (1) has a sliding groove (2) at the bottom end, and a sedimentation tank (3) is embedded in the sliding groove (2). The sedimentation tank (3) includes a tank body (301). A labyrinth-shaped guide plate (302) is connected to the inner surface of the tank body (301). A sealing groove (303) is installed at the bottom of the tank body (301) through an embedded installation. A sealing strip (304) is connected inside the sealing groove (303). A collection box (305) is connected to the bottom end of the sealing strip (304). A No. 1 water outlet pipe (4) is connected to one side of the sedimentation tank (3), and a filter screen (5) is provided in the inner cavity of the No. 1 water outlet pipe (4) near the sedimentation tank (3). A No. 1 water inlet pipe (6) is connected to the side of the sedimentation tank (3) away from the No. 1 water outlet pipe (4).

2. The drainage device for water conservancy and hydropower construction that facilitates impurity separation according to claim 1, characterized in that: The No. 1 water inlet pipe (6) is connected to a dynamic filtration and separation device (7) on the side away from the sedimentation tank (3), and the No. 1 water inlet pipe (6) and the dynamic filtration and separation device (7) are connected by a flange.

3. A drainage device for water conservancy and hydropower construction that facilitates impurity separation, as described in claim 2, is characterized in that: The dynamic filtration and separation device (7) includes a grid (701), the inner cavity of the grid (701) is provided with a conical filter (702), the inner cavity of the conical filter (702) is rotatably connected to a central shaft (703), and the side of the central shaft (703) away from the conical filter (702) is rotatably connected to an internal fan blade (704).

4. A drainage device for water conservancy and hydropower construction that facilitates impurity separation, as described in claim 2, is characterized in that: The No. 1 outlet pipe (4) is connected to the No. 2 inlet pipe (8) by bolts on the side away from the sedimentation tank (3), and the No. 2 inlet pipe (8) is connected to the side away from the No. 1 outlet pipe (4) by a water pump (9).

5. A drainage device for water conservancy and hydropower construction that facilitates impurity separation, as described in claim 4, is characterized in that: The water pump (9) is connected to the No. 2 outlet pipe (10) on the side away from the No. 2 inlet pipe (8), and the bottom end of the water pump (9) is fixedly installed with a base (11) by bolts.

6. A drainage device for water conservancy and hydropower construction that facilitates impurity separation, as described in claim 4, is characterized in that: The first water outlet pipe (4) has an air vent valve (12) connected to one side of its outer surface by a threaded rotation, and the second water inlet pipe (8) has a vacuum pressure gauge (13) connected to one side of its outer surface by a threaded rotation.

7. A drainage device for water conservancy and hydropower construction that facilitates impurity separation, as described in claim 1, is characterized in that: A pressure alarm light (14) is installed on one side of the outer shell (1) of the drainage device, and the pressure alarm light (14) is fixedly installed to the outer shell (1) of the drainage device by bolts.

8. A drainage device for water conservancy and hydropower construction that facilitates impurity separation, as described in claim 4, is characterized in that: The top of the drainage device housing (1) is fitted with a cover plate (15) by a folding buckle, and the bottom of the drainage device housing (1) is fitted with a roller assembly (16) by bolts. A sewage pipe (17) is connected to one side of the sedimentation tank (3).