Screw rod cleaning and flow increasing structure and rain sewage pipeline system

Abstract

The utility model discloses a helical rod cleaning and flow increasing structure and rain and sewage pipeline system, be applied to rain and sewage pipeline, a plurality of helical rod cleaning and flow increasing structures are along rain and sewage pipeline interval arrangement. The helical rod is along rain and sewage pipeline length direction arrangement, the gradually changing impeller group is fixed on the helical rod, gradually changes the impeller group and is divided into the front section blade and rear section blade along rainwater flow direction, and the outer diameter of front section blade gradually increases from starting point to rear section blade junction. The hanger is arranged at both ends of the helical rod, and the helical rod is connected on the rain and sewage pipeline through the hanger in only rotatable connection mode. The outer diameter of front section blade gradually increases, and gradually guides the water flow to form the rotation tendency and forces the water flow to concentrate to the pipeline center, forms the stable spiral flow. The spiral flow increases the ability of water flow to wrap sand and sundries, prevents the deposition at the bottom of the pipeline, reduces the risk of blockage, in addition, the spiral flow pushes the water flow to concentrate to the pipeline center, reduces the friction resistance with the pipe wall, improves the drainage efficiency of rain and sewage pipeline.

Description

Technical Field

[0001] This utility model relates to the field of pipeline technology, specifically to a spiral rod cleaning and flow enhancement structure and a rainwater and sewage pipeline system. Background Technology

[0002] During long-term use, the city's stormwater and sewage pipes are too long and have a low flow rate. As a result, mud, leaves, garbage and other substances carried by road water often settle at the bottom of the pipes, causing the sewage and drainage flow rate to continue to decrease and the amount of garbage to gradually increase.

[0003] To address the aforementioned problems of pipe blockage and reduced drainage efficiency, current conventional cleaning methods include: first, high-pressure water jet flushing requires interrupting drainage, resulting in low efficiency and significant water waste; second, mechanical sludge removal equipment is bulky, difficult to access small-diameter pipes, and may damage the pipe walls; third, chemical sludge removal poses environmental pollution risks and is costly. Furthermore, stormwater and sewage pipes typically experience non-full-flow, low-velocity flow, further exacerbating the sedimentation problem. Therefore, a technological measure is urgently needed that can operate continuously within pipes, automatically clean itself, and optimize flow conditions. Utility Model Content

[0004] To address the aforementioned shortcomings of existing technologies, a spiral rod cleaning and flow enhancement structure and a rainwater and sewage pipe system are provided to reduce blockages and improve drainage efficiency.

[0005] The technical solution adopted by this utility model to solve the above-mentioned technical problems is as follows: The screw-type cleaning and flow-enhancing structure is used in stormwater and sewage pipes, including... The helical rod is installed along the length of the storm and sewage pipes. The variable impeller assembly is fixed on the screw rod. The variable impeller assembly is divided into front blades and rear blades along the direction of rainwater flow. The outer diameter of the front blades gradually increases from the starting point to the connection point of the rear blades. The outer diameter of the rear blades is the same and equal to the maximum outer diameter of the front blades. The bracket is located at both ends of the screw rod and is fixedly installed on the inner wall of the rainwater and sewage pipe. The screw rod is connected to the bracket in a rotatable manner.

[0006] According to the above technical solution, the tilt angle of the front blades gradually decreases, while the tilt angles of the rear gradient impeller assembly are all the same.

[0007] According to the above technical solution, the tilt angle of the front blade gradually decreases, and the tilt angle of the rear gradient impeller assembly gradually decreases.

[0008] According to the above technical solution, the tilt angle range of the gradient impeller assembly is 15°~45°.

[0009] According to the above technical solution, the front blade has at least one ring, and the rear blade has at least one ring.

[0010] According to the above technical solution, the screw rod, the gradient impeller assembly, and the bracket are all made of corrosion-resistant materials; the surface of the gradient impeller assembly is designed to be smooth, and a wrapping layer is provided on the outermost contour of the front and rear blades.

[0011] Secondly, the stormwater and sewage pipeline system includes stormwater and sewage pipelines, and any of the aforementioned helical rod cleaning and flow enhancement structures, with several helical rod cleaning and flow enhancement structures arranged at intervals along the stormwater and sewage pipelines.

[0012] According to the above technical solution, multiple inspection wells are provided at intervals along the rainwater and sewage pipes, and the spiral rod cleaning and flow enhancement structure is provided at the rainwater and sewage pipes near the inspection wells.

[0013] According to the above technical solution, the spiral rod is located in a high-deposition area inside the pipeline.

[0014] According to the above technical solution, an installation sleeve is fixedly installed on the inner wall of the rainwater and sewage pipe. Each single-side bracket of the spiral rod cleaning and flow enhancement structure is equipped with at least one installation sleeve. A plug rod matching the installation sleeve is provided on the bracket. The plug rod is placed inside the installation sleeve.

[0015] This utility model has the following beneficial effects: 1. First, the rotation of the gradient impeller assembly relies entirely on fluid kinetic energy and requires no external energy source.

[0016] Secondly, the gradient impeller is composed of front and rear blades. The outer diameter of the front blades gradually increases, resulting in less disturbance when the water initially contacts the blades. This gradually guides the water flow to form a rotational tendency, avoiding energy loss due to sudden increases in resistance, and forcing the water flow to concentrate towards the center of the pipe, forming a stable spiral flow. The rear blades have a large outer diameter, which enhances the centrifugal effect of the rotating water flow, pushing the water flow towards the center of the pipe, reducing frictional resistance with the pipe wall, and improving the drainage efficiency of rainwater and sewage pipes.

[0017] Third, the gradual impeller assembly forms a stable spiral flow, which increases the water flow's ability to carry sand and debris, prevents sediment from settling at the bottom of the pipe, reduces the risk of blockage, and lifts the bottom sediment to the core area of ​​the water flow through centrifugal effect, allowing it to be discharged with the mainstream.

[0018] Therefore, this screw cleaning and flow enhancement structure has the characteristics of increasing flow rate, preventing deposition, simple structure, and long-term operation.

[0019] 2. The helix angle gradually increases from the inlet to the outlet of the gradually increasing impeller assembly, forcing the water flow to concentrate towards the center of the pipe, forming a stable helical flow.

[0020] 3. By installing multiple spiral cleaning and flow-enhancing structures at intervals within the storm and sewage pipes, the water flow state within the pipes is optimized, increasing flow velocity and preventing sediment deposition. This is particularly suitable for storm and sewage pipe systems with low flow velocities and non-full pipe operation, solving the problems of low efficiency and high cost associated with traditional dredging methods, while also improving the long-term drainage capacity of the pipes. Finally, depending on the actual site conditions, the pipes do not require continuous installation, significantly reducing costs. They can be used immediately upon removal, and installation and disassembly are convenient without affecting the original pipe structure.

[0021] The above description is merely an overview of the technical solution of this utility model. In order to better understand the technical means of this utility model and to implement it according to the contents of the specification, the preferred embodiments of this utility model are described in detail below with reference to the accompanying drawings. The specific implementation methods of this utility model are given in detail in the following embodiments and their accompanying drawings. Attached Figure Description

[0022] The accompanying drawings, which are included to provide a further understanding of the present invention and form part of this application, illustrate exemplary embodiments of the present invention and are used to explain the present invention, but do not constitute an undue limitation of the present invention.

[0023] Figure 1 This is a front structural diagram of an embodiment provided by this utility model; Figure 2 This is a schematic diagram of the internal installation structure of the sewage and rainwater pipe according to an embodiment of this utility model; Figure 3 This is a schematic diagram of the longitudinal section of the pipe side provided in an embodiment of this utility model; Figure 4 This is a schematic diagram of the segmented installation structure of a single-section sewage and rainwater pipe according to an embodiment of this utility model; In the diagram, 1 is the stormwater and sewage pipe; 2 is the helical rod; 3 is the gradient impeller assembly; 3-1 is the front blade; 3-2 is the rear blade; 4 is the bracket; 5 is the inspection well; and 6 is the installation sleeve. Detailed Implementation

[0024] The following is in conjunction with the appendix Figures 1-4 The principles and features of this utility model are described below. The examples given are for illustrative purposes only and are not intended to limit the scope of this utility model. The utility model is described more specifically in the following paragraphs by way of example with reference to the accompanying drawings. The advantages and features of this utility model will become clearer from the following description and claims. It should be noted that the drawings are in a very simplified form and use non-precise proportions, and are only used to facilitate and clarify the illustration of the embodiments of this utility model.

[0025] It should be noted that when a component is described as "fixed to" another component, it can be directly on the other component or may have a component in between. When a component is considered "connected to" another component, it can be directly connected to the other component or may have a component in between. When a component is considered "set on" another component, it can be directly set on the other component or may have a component in between. The terms "vertical," "horizontal," "left," "right," and similar expressions used in this document are for illustrative purposes only.

[0026] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0027] Reference Figures 1-4 As shown, the spiral rod cleaning and flow enhancement structure provided by this utility model is applied to rainwater and sewage pipe 1.

[0028] Example 1 include 2. The spiral rod is installed along the length of the rainwater and sewage pipe; The gradual change impeller assembly 3 is fixed on the screw rod. The gradual change impeller assembly is divided into a front section blade 3-1 and a rear section blade 3-2 along the direction of rainwater flow. The outer diameter of the front section blade gradually increases from the starting point to the connection point of the rear section blade. The outer diameter of the rear section blade is the same and equal to the maximum outer diameter of the front section blade. Hanger 4 is located at both ends of the helical rod and is fixedly installed on the inner wall of the rainwater and sewage pipe. The helical rod is connected to the hanger in a rotatable manner. In the embodiment shown in the figure, both ends of the helical rod are connected to the hanger via bearings.

[0029] In the above structure, as water flows through the gradually increasing diameter impeller assembly, it is guided by the front blades and gradually transforms from laminar flow to helical flow. The helical flow formed by the gradually increasing diameter impeller assembly creates a high-speed core zone in the center of the stormwater and sewage pipe, increasing the overall flow velocity; the rotating shear force at the bottom of the helical flow continuously disturbs the silt, preventing static deposition. The low-pressure vortex generated at the trailing edge of the impeller further breaks up the agglomerated silt, avoiding local blockage.

[0030] The above measures have the following advantages: First, the rotation of the gradient impeller assembly relies entirely on fluid kinetic energy, requiring no external energy source.

[0031] Secondly, the gradient impeller is composed of front and rear blades. The outer diameter of the front blades gradually increases, resulting in less disturbance when the water initially contacts the blades. This gradually guides the water flow to form a rotational tendency, avoiding energy loss due to sudden increases in resistance, and forcing the water flow to concentrate towards the center of the pipe, forming a stable spiral flow. The rear blades have a large outer diameter, which enhances the centrifugal effect of the rotating water flow, pushing the water flow towards the center of the pipe, reducing frictional resistance with the pipe wall, and improving the drainage efficiency of rainwater and sewage pipes.

[0032] Third, the gradual impeller assembly forms a stable spiral flow, which increases the water flow's ability to carry sand and debris, prevents sediment from settling at the bottom of the pipe, reduces the risk of blockage, and lifts the bottom sediment to the core area of ​​the water flow through centrifugal effect, allowing it to be discharged with the mainstream.

[0033] Therefore, this screw cleaning and flow enhancement structure has the characteristics of increasing flow rate, preventing deposition, simple structure, and long-term operation.

[0034] Example 2 In Example 1, the front and rear blades have various structural forms; in this embodiment, two preferred configurations are given.

[0035] First, the tilt angle of the front blades gradually decreases, while the tilt angle of the rear gradually tapering impeller assembly remains the same. The helix angle gradually increases from the front blades, forcing the water flow to concentrate towards the center of the pipe, forming a stable helical flow.

[0036] Secondly, the tilt angle of the front blades gradually decreases, and the tilt angle of the rear variable impeller assembly also gradually decreases. The helix angle gradually increases from the inlet to the outlet of the variable impeller assembly, forcing the water flow to concentrate towards the center of the pipe, forming a stable helical flow.

[0037] In Examples 1 and 2, preferably, the tilt angle range of the front and rear blades in the gradient impeller assembly is 15° to 45°.

[0038] In embodiments 1 and 2, the front blade has at least one ring and the rear blade has at least one ring.

[0039] In embodiments 1 and 2, the screw rod, the gradient impeller assembly, and the bracket are all made of corrosion-resistant materials; the impeller edges are designed to be streamlined and smooth to reduce resistance; and a wrapping layer is provided on the outermost contour of the front and rear blades to prevent the structure from being cut by the blades during installation. The blade material is relatively lightweight and can easily rotate under the influence of water flow through bearings.

[0040] This utility model also provides a stormwater and sewage pipeline system, including stormwater and sewage pipelines, and a spiral rod cleaning and flow enhancement structure as described above, wherein a plurality of spiral rod cleaning and flow enhancement structures are arranged at intervals along the stormwater and sewage pipelines.

[0041] By installing multiple spiral cleaning and flow-enhancing structures at intervals within the storm and sewage pipes, the water flow state within the pipes is optimized, increasing flow velocity and preventing silt deposition. This is particularly suitable for storm and sewage pipe systems operating at low flow rates and not at full capacity. It solves the problems of low efficiency and high cost associated with traditional dredging methods, while also improving the long-term drainage capacity of the pipes. Finally, depending on the actual site conditions, the pipes do not require continuous installation (although continuous installation is possible in special circumstances), which can significantly reduce costs. They are readily available, easy to install and disassemble, and do not affect the original pipe structure.

[0042] If the pipeline is newly constructed and continuous increases in sewage discharge capacity are required, the installation density can be increased within the pipeline, i.e., a single spiral structure can be installed on each section of the pipeline, followed by discontinuous assembly. If the pipeline is an upgraded section, the length of the spiral rod must meet the spatial installation requirements. Multiple inspection wells 5 are spaced along the storm and sewage pipelines. Preferably, the spiral rod cleaning and flow-enhancing structure is installed at the storm and sewage pipeline sections adjacent to the inspection wells. For newly constructed pipelines, the storm and sewage pipelines are assembled section by section. The spiral rod cleaning and flow-enhancing structure can be installed on a designated section of the storm and sewage pipeline before assembly; then the assembly of the storm and sewage pipeline is completed. For existing pipelines, the spiral rod cleaning and flow-enhancing structure is installed at the storm and sewage pipeline sections near the inspection wells.

[0043] The auger is located in a high-deposition area within the pipe. Based on requirements, a suitable distance is determined between the bottom of the rear blade and the bottom wall of the pipe. The position of the auger is then determined based on the outer diameter of the rear blade and this suitable distance. Alternatively, the position of the auger can be determined first, and the outer diameter of the rear blade adjusted subsequently. The auger cleaning and flow-enhancing structure is connected to the inner wall sleeve via a bracket, with a pre-existing gap at the bottom to precisely agitate the deposited layer.

[0044] An installation sleeve 6 is fixedly installed on the inner wall of the rainwater and sewage pipe. Each single-side bracket of the spiral rod cleaning and flow enhancement structure is equipped with at least one installation sleeve. A matching insertion rod is provided on the bracket; the insertion rod is placed inside the installation sleeve. The bracket material is corrosion-resistant, has high strength and rigidity, and can be stably inserted into the installation sleeve, effectively fixing the sleeve even when the subsequent gradual impeller assembly rotates and causes shaking. The bracket and installation sleeve facilitate easy installation and disassembly, resulting in low cost, making it ideal for newly constructed pipelines. Furthermore, it eliminates the need for continuous installation; if the pipeline is modified, it can be installed at locations with inspection wells for easy periodic observation and maintenance. Other structural forms can also be used to fix the unit to the inner wall of the rainwater and sewage pipe.

[0045] Taking the installation sleeve as an example, the installation process of this spiral rod cleaning and flow boosting structure is as follows: Access the bottom of the sewage and rainwater pipes through existing inspection wells and clean the sediment from the inner walls of the pipes to determine the installation location, avoiding areas prone to disturbance such as bends and valves. Mark the installation line at the bottom of the straight section of the sewage and rainwater pipe, ensuring that the disturbance areas of the helical rod and the rear blades are close to areas with high sedimentation rates. Fix the installation sleeve to the inner wall of the sewage and rainwater pipe, or use a sewage and rainwater pipe with pre-embedded installation sleeves in the early stages. Installation sleeves come in several forms; one type consists of two parts: the first part is fixed to the inner wall of the sewage and rainwater pipe, and the second part is fixed to the first part with fasteners, forming the installation sleeve structure; another type involves first inserting the bracket's insertion rod into the installation steel cylinder, and then fixing the installation steel sleeve to the inner wall of the sewage and rainwater pipe.

[0046] The rear blades maintain an appropriate distance from the sewage pipe wall to disturb the sediment layer. When water flows through the sewage pipe, the water passes through the front and rear blades, creating thrust. Under this thrust, the front and rear blades rotate within the bearings of the side brackets. The impeller structure drives the water flow to disturb, gradually transforming it from laminar flow to spiral flow. The shear force continuously disturbs the sediment, preventing static deposition of impurities in the water flow.

[0047] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model in any way. Those skilled in the art can readily implement this utility model based on the accompanying drawings and the above description. However, any modifications, alterations, or variations made by those skilled in the art without departing from the scope of the utility model's technical solution, utilizing the disclosed technical content, are equivalent embodiments of this utility model. Furthermore, any equivalent changes, alterations, or variations made to the above embodiments based on the essential technology of this utility model are still within the protection scope of this utility model's technical solution.

Claims

1. A screw rod cleaning and flow-enhancing structure, applied in rainwater and sewage pipes, characterized by: include The helical rod is installed along the length of the storm and sewage pipes. The variable impeller assembly is fixed on the screw rod. The variable impeller assembly is divided into front blades and rear blades along the direction of rainwater flow. The outer diameter of the front blades gradually increases from the starting point to the connection point of the rear blades. The outer diameter of the rear blades is the same and equal to the maximum outer diameter of the front blades. The bracket is located at both ends of the screw rod and is fixedly installed on the inner wall of the rainwater and sewage pipe. The screw rod is connected to the bracket in a rotatable manner.

2. The screw rod cleaning and flow enhancement structure according to claim 1, characterized in that: The tilt angle of the front blades gradually decreases, while the tilt angle of the rear gradually tapering impeller assembly is the same.

3. The screw rod cleaning and flow enhancement structure according to claim 1, characterized in that: The tilt angle of the front blades gradually decreases, and the tilt angle of the rear gradient impeller assembly gradually decreases.

4. The screw rod cleaning and flow-boosting structure according to any one of claims 1-3, characterized in that: The tilt angle range of the gradient impeller assembly is 15° to 45°.

5. The screw rod cleaning and flow enhancement structure according to claim 4, characterized in that: The front section blade has at least one ring, and the rear section blade has at least one ring.

6. The screw rod cleaning and flow enhancement structure according to claim 1, characterized in that: The screw rod, the gradient impeller assembly, and the hanger are all made of corrosion-resistant materials; the gradient impeller assembly has a smooth surface design, and a wrapping layer is provided on the outermost contour of the front and rear blades.

7. A stormwater and sewage pipe system, characterized in that: It includes stormwater and sewage pipes, and a spiral rod cleaning and flow enhancement structure as described in any one of claims 1-6, wherein a plurality of spiral rod cleaning and flow enhancement structures are arranged at intervals along the stormwater and sewage pipes.

8. The stormwater and sewage pipeline system according to claim 7, characterized in that: Multiple inspection wells are installed at intervals along the rainwater and sewage pipes, and the spiral rod cleaning and flow enhancement structure is installed at the rainwater and sewage pipes near the inspection wells.

9. The stormwater and sewage pipeline system according to claim 7, characterized in that: The spiral rod is located in a high-deposition area inside the pipeline.

10. The stormwater and sewage pipeline system according to claim 7, characterized in that: An installation sleeve is fixedly installed on the inner wall of the rainwater and sewage pipe. Each single-side bracket of the spiral rod cleaning and flow enhancement structure is equipped with at least one installation sleeve. A plug rod that matches the installation sleeve is provided on the bracket. The plug rod is placed inside the installation sleeve.

Images