A pump station water inlet sediment separation assembly

Abstract

The utility model discloses a kind of pump station water inlet silt separation components, more specifically in silt separation technical field, including inlet pipe, the separation component for realizing silt separation is assembled on the inlet pipe, and the vertical section of the inlet pipe is in the shape of a circular truncated cone, the top end of the inlet pipe is detachably connected with second locking ring, second locking ring middle part is connected with outlet pipe by thread cooperation, the outlet pipe and inlet pipe coaxial line arrangement.The utility model is efficiently cooperated by the blade of being set up obliquely upwards and the circular truncated cone inlet pipe.Water flow impacts blade, both will drive rotating disc high-speed rotation to generate centrifugal force, and will coarse sand, fine gravel etc. main silt particle be thrown to pipe wall and realize separation;It can also be with the flow guiding effect of circular truncated cone pipeline, so that water flow keeps stable upward flow track, avoid silt particle deposit in pipe, ensure that centrifugal separation continues efficiently, greatly reduce the filtration pressure of subsequent filter element.

Description

Technical Field

[0001] This utility model relates to the field of sediment separation technology, and more specifically, to a sediment separation component for pump station inlet. Background Technology

[0002] A pumping station is essentially a system that uses mechanical power (water pumps) as its core, along with supporting pipelines, valves, and control systems, to achieve directional movement or pressure regulation of water flow. Its core value lies in solving problems such as insufficient height difference, slow flow velocity, and inability to accurately transport water in natural water flow. It is widely used in domestic, industrial, and ecological scenarios to transport water from low-lying areas to higher-lying areas (e.g., in urban sewage treatment plants, it lifts sewage from underground pipe networks to treatment ponds; in rural irrigation, it lifts water from rivers / reservoirs to farmland irrigation ditches).

[0003] Sediment in water flow (especially coarse sand and fine gravel with a particle size ≥0.05mm, or long-term deposited silt) is an "invisible killer" for pump station operation. If it is not separated in advance, it will directly attack the core components of the pump station, leading to equipment failure, reduced efficiency, and soaring operation and maintenance costs. To address this, a sediment separation component for pump station inlet is provided. Utility Model Content

[0004] In order to overcome the above-mentioned defects of the prior art, the present invention provides a pump station inlet sediment separation component, which aims to solve the problems mentioned in the background art.

[0005] This utility model provides the following technical solution: a pump station inlet sediment separation component, including an inlet pipe, on which a separation component for achieving sediment separation is mounted, and the vertical cross section of the inlet pipe is frustum-shaped, and a second locking ring is detachably connected to the top of the inlet pipe, and an outlet pipe is connected to the middle of the second locking ring by a threaded connection, and the outlet pipe and the inlet pipe are arranged coaxially; The separation assembly includes a central rod fixedly installed inside the water inlet pipe. A turntable is mounted on the top of the central rod via a rotating connection structure. Several blades are evenly distributed on the outer circumference of the turntable, and each blade is inclined upward along the radial direction of the turntable. A limiting ring is fixedly installed at the top of the inner cavity of the water inlet pipe, and a filter element for filtering silt is embedded in the middle of the limiting ring. The filtration accuracy of the filter element is adapted to the silt interception requirements of the pump station's water intake.

[0006] Optionally, in one possible implementation, a reinforcing ring is fixedly sleeved at the bottom of the water inlet pipe. The reinforcing ring is made of high-strength metal, and a first locking ring is threadedly connected to the outside of the reinforcing ring. The thread fit between the first locking ring and the reinforcing ring meets the sealing requirements. A water inlet filter is embedded in the middle of the first locking ring. The mesh size of the water inlet filter is adapted to the need to intercept large-diameter impurities. A raised structure is integrally formed in the middle of the water inlet filter. The raised structure is oriented towards the water inlet direction to guide the water flow to disperse and flow to the outside of the water inlet filter. Optionally, in one possible implementation, the filter element is made of stainless steel filter mesh, and a sealing ring is provided between the filter element and the limiting ring. The sealing ring is used to prevent unfiltered water from flowing through the gap between the filter element and the limiting ring. A preset gap is left between the end of the blade away from the turntable and the inner wall of the water inlet pipe to avoid friction between the blade and the inner wall of the water inlet pipe when the blade rotates. The reinforcing ring is fixedly connected to the water inlet pipe by welding, and the outer circumferential surface of the reinforcing ring is provided with an external thread structure for adapting to the connection of the first locking ring. The technical effects and advantages of this utility model are as follows: The inlet filter screen features a special structure with a raised center, which not only accurately intercepts large-diameter impurities such as stones and branches, preventing them from entering the components and damaging the core parts, but also guides the water flow to the outside of the filter screen through the raised center, increasing the contact area between the water flow and the filter screen, improving filtration efficiency, reducing local wear caused by concentrated water flow impact, and extending the service life of the filter screen.

[0007] The upward-sloping blades work in tandem with the frustum-shaped inlet pipe. When water flows over the blades, it drives the disc to rotate at high speed, generating centrifugal force that throws coarse sand, fine gravel, and other main sediment particles toward the pipe wall for separation. Simultaneously, the frustum-shaped pipe guides the water flow, maintaining a stable upward trajectory and preventing sediment particles from settling inside the pipe. This ensures continuous and efficient centrifugal separation, significantly reducing the filtration pressure on subsequent filter cartridges. The first locking ring and the reinforcing ring, as well as the second locking ring and the inlet pipe, are all detachable. When the water flow rate decreases or the separation efficiency drops, staff can quickly disassemble the locking ring to clean or replace the inlet filter and maintain the filter element without disassembling the entire assembly, significantly shortening maintenance time. Attached Figure Description

[0008] To more clearly illustrate the technical solutions in this disclosure, the accompanying drawings used in some embodiments will be briefly described below. Obviously, the drawings described below are only drawings of some embodiments of this disclosure, and those skilled in the art can obtain other drawings based on these drawings. In addition, the drawings described below can be regarded as schematic diagrams and are not intended to limit the actual size of the product, the actual flow of the method, the actual timing of the signals, etc. involved in the embodiments of this disclosure.

[0009] Figure 1 This is a front view of the overall structure of this utility model.

[0010] Figure 2 This is a schematic diagram showing the central rod, inlet pipe, blades, first locking ring, and inlet filter screen of this utility model installed together.

[0011] Figure 3 This is a schematic diagram of the water inlet pipe, the first locking ring, the water inlet filter, and the second locking ring of this utility model.

[0012] Figure 4 This is a schematic diagram of the water inlet pipe, reinforcing ring, limiting ring, filter element, turntable, and blades of this utility model.

[0013] The attached diagram is labeled as follows: 1. Inlet pipe; 2. Center rod; 3. Turntable; 4. Blade; 5. Limiting ring; 6. Filter element; 7. Reinforcing ring; 8. First locking ring; 9. Inlet filter screen; 10. Second locking ring; 11. Outlet pipe. Detailed Implementation

[0014] 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.

[0015] The pump station inlet sediment separation component disclosed in this embodiment aims to solve the technical problem that sediment easily enters the core components of the existing pump station during the water intake process, leading to equipment failure, reduced efficiency, and a surge in operation and maintenance costs.

[0016] As shown in Figure 1, the inlet sediment separation assembly of this pumping station mainly consists of an inlet pipe 1, a separation component, a first locking ring 8, a second locking ring 10, and an outlet pipe 11. The inlet pipe 1 has a frustum-shaped vertical cross-section. This design guides the water flow to form a stable trajectory within the pipe and facilitates the assembly and positioning of the components. The second locking ring 10 is detachably connected to the top of the inlet pipe 1 via a threaded connection. The outlet pipe 11 is threadedly connected to the middle of the second locking ring 10. The outlet pipe 11 is coaxial with the inlet pipe 1, ensuring that the separated and filtered water can smoothly enter the subsequent pipelines of the pumping station.

[0017] As shown in Figure 4, the inlet pipe 1 is equipped with a separation assembly, the core components of which include a central rod 2, a turntable 3, and blades 4.

[0018] The central rod 2 is fixed to the center of the inlet pipe 1 by welding. A turntable 3 is rotatably connected to its top via a bearing. Several blades 4 are evenly distributed circumferentially on the outer surface of the turntable 3. Each blade 4 is inclined upwards at a 45° angle along the radial direction of the turntable 3, allowing it to rotate under the action of water flow, thus enhancing the centrifugal separation effect. A gap is left between the end of the blade 4 furthest from the turntable 3 and the inner wall of the inlet pipe 1. This avoids frictional wear between the blade 4 and the inner wall of the inlet pipe 1 during rotation, and also prevents excessively large gaps from causing sediment to flow directly to subsequent filtration structures without sufficient separation.

[0019] A limiting ring 5 is bolted to the top of the inner cavity of the inlet pipe 1. The inner diameter of the limiting ring 5 is adapted to the installation requirements of the filter element 6, and its function is to position and fix the filter element 6. The filter element 6 is embedded in the middle of the limiting ring 5, which can effectively intercept sediment particles and meet the water quality requirements of the pump station. A nitrile rubber sealing ring is also provided between the filter element 6 and the limiting ring 5. The sealing between the filter element 6 and the limiting ring 5 is achieved by compression deformation, preventing unfiltered sand-containing water from flowing through the gap between the two and ensuring that all water flows are filtered by the filter element 6.

[0020] As shown in Figures 2 and 3, a reinforcing ring 7 is fixedly fitted at the bottom of the water inlet pipe 1. It is fixedly connected to the water inlet pipe 1 by welding, which can effectively enhance the structural strength of the bottom of the water inlet pipe 1 and prevent the water inlet pipe 1 from deforming due to water flow impact during long-term use. The reinforcing ring 7 has an external thread on its outer side, which is threaded to the first locking ring 8 to ensure a tight connection between the first locking ring 8 and the reinforcing ring 7, and at the same time facilitate subsequent disassembly and maintenance.

[0021] The first locking ring 8 has an inlet filter screen 9 embedded in its center. The inlet filter screen 9 is made of nylon and can pre-intercept large-diameter impurities such as stones and branches in the water, preventing such impurities from entering the inlet pipe 1 and damaging the separation components or filter element 6. The inlet filter screen 9 has a hemispherical protrusion structure integrally formed in its center, facing the direction of water flow. When water flows in from the outside, the protrusion structure can disperse the water flow to the outside of the inlet filter screen 9, increasing the contact area between the water flow and the filter screen, improving filtration efficiency, and at the same time preventing the water flow from concentrating and impacting a certain area of ​​the filter screen, which could cause local damage. The specific working principle is as follows: When the pump station starts to receive water, the water flow first flows to the inlet filter screen 9 at the first locking ring 8. Guided by the raised structure in the middle of the inlet filter screen 9, the water flow disperses to the outside of the filter screen. Large-diameter impurities such as stones and branches in the water flow are intercepted by the inlet filter screen 9, achieving the first stage of impurity filtration. The water flow after preliminary filtration enters the interior of the inlet pipe 1. Since the vertical cross-section of the inlet pipe 1 is frustum-shaped, the water flow forms an upward flow trend inside the pipe, while simultaneously impacting the blades 4 on the turntable 3. Because the blades 4 are inclined upward, the water flow impacting the blades 4 generates a component force along the circumference of the turntable 3, causing the turntable 3 to rotate at high speed around the central rod 2.

[0022] During the rotation of turntable 3, centrifugal force throws sediment particles in the water flow toward the inner wall of inlet pipe 1, initially separating the sediment particles from the water flow, achieving the second stage of centrifugal separation. The water flow after this initial separation continues upwards, reaching filter element 6 at limit ring 5. The mesh size of filter element 6 can intercept the remaining fine sediment particles, achieving the third stage of fine filtration. The clean water flow after three stages of filtration enters the subsequent pipeline of the pump station through outlet pipe 11, which is coaxial with inlet pipe 1, providing a clean water source for the core components of the pump station and preventing sediment from damaging the equipment.

[0023] If a decrease in inlet water flow or a drop in separation efficiency is found during long-term use of the equipment, the inlet filter screen 9 can be cleaned or replaced by disassembling the first locking ring 8, and the filter element 6 can be maintained or replaced by disassembling the second locking ring 10. The detachable design of each component greatly reduces the difficulty of operation and maintenance and reduces the operation and maintenance cost.

[0024] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A pump station inlet sediment separation assembly, comprising an inlet pipe (1), characterized in that: The inlet pipe (1) is equipped with a separation component for separating mud and sand, and the vertical cross section of the inlet pipe (1) is frustum-shaped. The top end of the inlet pipe (1) is detachably connected to a second locking ring (10), and the middle part of the second locking ring (10) is connected to an outlet pipe (11) by a threaded connection. The outlet pipe (11) and the inlet pipe (1) are arranged coaxially. The separation assembly includes a central rod (2) fixedly installed inside the water inlet pipe (1). A turntable (3) is installed on the top of the central rod (2) through a rotating connection structure. Several blades (4) are evenly distributed on the outer circumferential surface of the turntable (3). Each blade (4) is inclined upward along the radial direction of the turntable (3). A limiting ring (5) is fixedly installed at the top of the inner cavity of the water inlet pipe (1). A filter element (6) for filtering mud and sand is embedded in the middle of the limiting ring (5). The filtration accuracy of the filter element (6) is adapted to the mud and sand interception requirements of the pump station water intake.

2. The pump station inlet sediment separation component according to claim 1, characterized in that: The bottom end of the water inlet pipe (1) is fixedly fitted with a reinforcing ring (7). The reinforcing ring (7) is made of high-strength metal, and the outer side of the reinforcing ring (7) is connected to a first locking ring (8) by a thread. The thread fit between the first locking ring (8) and the reinforcing ring (7) meets the sealing requirements.

3. The pump station inlet sediment separation component according to claim 2, characterized in that: The first locking ring (8) is fitted with an inlet filter screen (9) in the middle. The mesh size of the inlet filter screen (9) is adapted to the requirement of intercepting large-diameter impurities. The inlet filter screen (9) has an integrally formed protruding structure in the middle. The protruding structure is set in the direction of water flow in order to guide the water flow to disperse and flow to the outside of the inlet filter screen (9).

4. The pump station inlet sediment separation component according to claim 1, characterized in that: The filter element (6) is made of stainless steel filter mesh material, and a sealing ring is provided between the filter element (6) and the limiting ring (5). The sealing ring is used to prevent unfiltered water from flowing through the gap between the filter element (6) and the limiting ring (5).

5. A pump station inlet sediment separation component according to claim 1, characterized in that: A preset gap is left between the end of the blade (4) away from the turntable (3) and the inner wall of the water inlet pipe (1) to avoid friction between the blade (4) and the inner wall of the water inlet pipe (1) when the blade (4) rotates.

6. A pump station inlet sediment separation component according to claim 2, characterized in that: The reinforcing ring (7) is fixedly connected to the water inlet pipe (1) by welding, and the outer circumferential surface of the reinforcing ring (7) is provided with an external thread structure for adapting to the connection of the first locking ring (8).

Images