Dredging device for water conservancy project
By designing a dredging device for water conservancy projects, the blocked pipeline is blocked by backwashing sand and cyclone water flow, the problem of existing equipment damages the pipeline and jet misalignment when cleaning the pipeline blockage is solved, and efficient pipeline cleaning effect is achieved.
Patent Information
- Application Number
- CN202421175608.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-28
- Publication Date
- 2025-03-18
- Estimated Expiration
- 2034-05-28
AI Technical Summary
When existing water conservancy pipeline dredging equipment cleansing pipelines, mechanical dredging equipment can easily damage the inner wall of the pipeline, and the jet direction of the water flow dredging equipment is not aligned with the pipe wall, resulting in poor cleaning effect on stubborn attachments.
A dredging device for water conservancy engineering is designed, including backwashing pipes and rotary nozzles. The blocked pipeline is blocked by backwashing sand flushing and cyclone water flow. The multi-stage driving impeller and support rod structure of the rotary nozzle make the water flow form jet and cyclone, improving the cleaning effect.
Without touching the pipe wall, the device effectively cleans up the adherent silt in the pipe wall, improves the cleaning effect of blocked silt and pipe walls, and enhances the cleaning ability of the dredging equipment.
Smart Images
Figure CN222625652U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of water conservancy projects, in particular to a dredging device for water conservancy projects. Background Art
[0002] After the water pipes have been used for a period of time, the accumulation of garbage and sand and gravel can easily cause blockage in the pipes, so the inside of the pipes needs to be dredged. The current pipe dredging equipment is divided into mechanical dredging and water dredging, or a combination of the two.
[0003] During the above-mentioned equipment cleaning process, due to the fear that mechanical dredging may damage the inner wall of the pipe, a hole smaller than the pipe diameter is often required. Water dredging is mostly carried out by direct flushing or backwashing to dredge the pipe blockage. The direction of the jet nozzle is often aligned with the axial direction of the pipe. Therefore, the jet direction is not aligned with the pipe wall, and the stubborn attachments on the inner wall of the pipe cannot be effectively cleaned. In view of this, in-depth research was conducted on the above-mentioned problem, which led to the present case. Utility Model Content
[0004] In view of the deficiencies of the prior art, the utility model provides a dredging device for water conservancy projects, which solves the existing background technical problems.
[0005] To achieve the above purpose, the utility model is implemented through the following technical solutions: a dredging device for water conservancy projects, comprising a water pipe and a plurality of backwashing pipes connected end to end, wherein the plurality of backwashing pipes are axially connected and inserted into the water pipe, the head end of the backwashing pipe located at the head end is connected to a pipeline guide, and a dredging cleaning head is arranged on the backwashing pipe located at the head end;
[0006] The unblocking cleaning head comprises a pipe body, a fixing seat is arranged on the pipe body, the fixing seat is connected to the backwashing pipe at the head end, a cylindrical through cavity is axially penetrated in the pipe body, and a diameter-changing expanding annular groove is arranged at the head end of the cylindrical through cavity;
[0007] A rotating nozzle coaxial with the pipe body is installed in the expanded diameter ring groove, a main nozzle hole is opened in the center of the rotating nozzle, a plurality of auxiliary nozzle holes are arranged on the outer ring of the main nozzle hole, the main nozzle hole is coaxial with the cylindrical through cavity, a pair of support rods are arranged in parallel on both sides of the rotating nozzle, a shaft plate is connected to the pair of support rods, a rotating shaft is arranged on the shaft plate, and a multi-stage driving impeller is sleeved on the rotating shaft.
[0008] Preferably, a pair of matching threaded joints are respectively provided at both ends of the backwash pipe, and the fixing seat and the backwash pipe are connected by threads.
[0009] Preferably, a bearing ring sleeve is provided in the diameter expansion ring groove and is sleeved on both sides of the shaft plate to limit the position of the shaft plate.
[0010] Preferably, the diameter of the pipeline guide matches the inner diameter of the water pipe, and a plurality of reverse flow holes are arranged on the pipeline guide.
[0011] Preferably, the head end of the pipeline guide is connected to a shield with a slope structure.
[0012] Preferably, the main spray hole and the plurality of auxiliary spray holes are through holes with a partial cone structure, and the diameter of the main spray hole is greater than the diameter of the auxiliary spray holes.
[0013] Beneficial Effects
[0014] The utility model provides a dredging device for water conservancy projects. It has the following beneficial effects: the dredging device for water conservancy projects dredges blocked pipes by backwashing and sand flushing. In order to increase the dredging effect, the straight axial flow water flow is changed into a cleaning water flow with jet and swirl effects through a rotating nozzle, which can not only improve the cleaning effect of blocked mud and sand, but also improve the cleaning effect of the pipe wall. When the mechanical part does not contact the pipe wall, the attached mud and sand in the pipe wall can be effectively cleaned. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] Figure 1 It is a schematic diagram of the three-dimensional structure of a dredging device for water conservancy engineering described in the utility model.
[0016] Figure 2 It is a partial three-dimensional structural schematic diagram of a dredging device for water conservancy engineering described in the utility model.
[0017] Figure 3 It is a partial cross-sectional structural schematic diagram of a dredging device for water conservancy engineering described in the utility model.
[0018] In the figure: 1, water pipe; 2, backwash pipe; 3, pipe guide; 4, unclogging cleaning head; 31, backwash hole; 41, pipe body; 42, fixing seat; 43, cylindrical cavity; 44, diameter expansion ring groove; 45, rotating nozzle; 451, main spray hole; 452, auxiliary spray hole; 453, support rod; 454, shaft plate; 455, multi-stage driving impeller; 456, bearing ring sleeve. DETAILED DESCRIPTION
[0019] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0020] See also Figure 1-3The utility model provides an implementation scheme: in the existing pipeline dredging operations of water conservancy projects, conventional cleaning methods such as mechanical cleaning and backwashing cleaning, the former usually does not contact the pipe wall in order to avoid scratching the pipe wall, and the flushing water flow is only axial, so the cleaning ability for attached and closed sand and debris is poor.
[0021] In order to solve the above technical problems, the present application discloses a dredging device for water conservancy projects, specifically, a water pipe 1 is used as a pipeline to be dredged and cleaned, and backwash cleaning is adopted as a cleaning method. Specifically, a plurality of backwash pipes 2 connected end to end are inserted into the water pipe 1, and the head end of the backwash pipe 2 located at the innermost end is connected with a pipeline guide 3 for guiding the backwash pipe 2 forward, and the outermost backwash pipe 2 is connected to an upper water pump through a coupling, and the upper water pump pumps cleaning water into the backwash pipe 2, and the water is transported to one side of a dredging cleaning head 4 through the backwash pipe 2, and the blocked sediment in the water pipe 1 is cleaned by the dredging cleaning head 4, and the dredging cleaning head 4 is provided on the backwash pipe 2 located at the head end;
[0022] Specifically, according to the instructions Figure 1-3 It can be known that the above-mentioned dredging cleaning head 4 includes a pipe body 41, on which a fixing seat 42 is provided as a coupling to connect the innermost backwash pipe 2, and a cylindrical through cavity 43 is axially penetrated in the pipe body 41, and the cleaning water enters the cylindrical through cavity 43 through the backwash pipe 2, and a variable diameter expansion ring groove 44 is provided at the head end of the cylindrical through cavity 43, and the expansion ring groove 44 is used as an installation space for a rotating nozzle 45, and a multi-stage driving impeller 455 connected to the upper part of the rotating nozzle 45 drives the rotating nozzle 45 to rotate under the action of the water flow, and the specific multi-stage driving impeller 455 rotates under the impact of the axial water flow, thereby driving the shaft plate 454 to rotate, and the shaft plate 454 drives a pair of support rods 453 to rotate the rotating nozzle 45, and the rotating nozzle In addition to the main spray hole 451 corresponding to the central axis, the head 45 is also provided with a plurality of auxiliary spray holes 452, which play a role of diversion. The main spray hole 451 and the plurality of auxiliary spray holes 452 are through holes with a partial conical structure, and the diameter of the main spray hole 451 is larger than the diameter of the auxiliary spray hole 452. Since the diameter of the water outlet end of the partial conical structure is smaller than the diameter of the water inlet end, the spraying water pressure can be further increased. Since the diameter of the auxiliary spray hole 452 is smaller than the diameter of the main spray hole 451, the auxiliary spray hole 452 increases the water pressure to form a jet, and the direction of the auxiliary spray hole 452 is inclined toward the inner pipe wall. Therefore, during spraying, the jet can be aimed at the stubborn sand and soil on the pipe wall for cleaning, and the rotating nozzle 45 will form a vortex due to the rotation effect, thereby improving the cleaning effect.
[0023] Furthermore, a pair of matching threaded joints are provided at both ends of the backwash pipe 2 for end-to-end connection between the backwash pipes 2. The fixing seat 42 is threadedly connected to the backwash pipe 2 to facilitate the dismantling of the backwash pipe 2 section by section.
[0024] Furthermore, a bearing ring sleeve 456 is provided in the expanded ring groove 44 and is sleeved on both sides of the shaft plate 454 to limit the shaft plate 454 to prevent the shaft plate 454 from shaking up and down. The shape of the shaft plate 454 should be oblong or square, or at least have a water supply to ensure the passage of water.
[0025] Furthermore, the diameter of the pipeline guide 3 matches the inner diameter of the water pipe 1 . The matching of the pipeline guide 3 and the inner diameter of the water pipe 1 enables the backwashing pipe 2 to move according to the shape and direction of the water pipe 1 .
[0026] Furthermore, a shield with a sloped structure is connected to the head end of the pipe guide 3, and a plurality of recirculation holes 31 are arranged on the pipe guide 3. The shield plays a role in protecting the pipe guide 3. In order to avoid problems such as pipe wall fracturing due to water pressure, recirculation holes 31 are required to be opened on the pipe guide 3 to discharge the sand-carrying liquid.
[0027] From the above, it can be generally known that the dredging device for water conservancy projects dredges blocked pipes by backwashing and sand flushing. In order to increase the dredging effect, the straight axial flow water is changed into a cleaning water flow with jet and swirl effects through the rotating nozzle 45. This can not only improve the cleaning effect of the blocked mud and sand, but also improve the cleaning effect of the pipe wall. Without the mechanical part contacting the pipe wall, the attached mud and sand in the pipe wall can be effectively cleaned.
[0028] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.
Claims
1. A dredging device for a water conservancy project, comprising a water pipe (1) and a plurality of backwash pipes (2) connected end to end, wherein the plurality of backwash pipes (2) are axially connected and inserted into the water pipe (1), and the head end of the backwash pipe (2) located at the head end is connected to a pipeline guide (3), characterized in that: A backwashing pipe (2) located at the head end is provided with a clearing and cleaning head (4); The unclogging and cleaning head (4) comprises a pipe body (41), a fixing seat (42) is arranged on the pipe body (41), the fixing seat (42) is connected to the backwashing pipe (2) located at the head end, a cylindrical through cavity (43) is axially penetrated in the pipe body (41), and a diameter-changing expanding annular groove (44) is provided at the head end of the cylindrical through cavity (43); A rotating nozzle (45) coaxial with the pipe body (41) is installed in the enlarged diameter annular groove (44); a main nozzle hole (451) is opened at the center of the rotating nozzle (45); a plurality of auxiliary nozzle holes (452) are arranged on the outer ring of the main nozzle hole (451); the main nozzle hole (451) is coaxial with the cylindrical cavity (43); a pair of support rods (453) are arranged in parallel on both sides of the rotating nozzle (45); a shaft plate (454) is connected to the pair of support rods (453); a rotating shaft is arranged on the shaft plate (454); and a multi-stage driving impeller (455) is sleeved on the rotating shaft.
2. A dredging device for water conservancy projects according to claim 1, characterized in that: A pair of matching threaded joints are respectively provided at both ends of the backwash pipe (2), and the fixing seat (42) is connected to the backwash pipe (2) by threads.
3. A dredging device for water conservancy projects according to claim 2, characterized in that: A bearing ring sleeve (456) is arranged in the diameter-expanding ring groove (44) and is sleeved on both sides of the shaft plate (454) to limit the position of the shaft plate (454).
4. A dredging device for water conservancy projects according to claim 3, characterized in that: The diameter of the pipeline guide (3) matches the inner diameter of the water pipe (1), and a plurality of reverse flow holes (31) are arranged on the pipeline guide (3).
5. A dredging device for water conservancy projects according to claim 4, characterized in that: The head end of the pipeline guide (3) is connected to a shield with a slope structure.
6. A dredging device for water conservancy projects according to claim 5, characterized in that: The main spray hole (451) and the plurality of auxiliary spray holes (452) are all through holes with a partially conical structure, and the diameter of the main spray hole (451) is greater than the diameter of the auxiliary spray hole (452).