Integrated pump station

Abstract

The application relates to the technical field of pump stations, and discloses an integrated pump station which comprises a pump box, a fixing frame, a grid cylinder, two driving rollers, an upper crushing roller, a lower crushing roller and a floating box; the fixing frame is fixedly arranged in a water inlet pipe; the grid cylinder is fixedly arranged in the fixing frame, and two ends of the water inlet pipe are connected in communication through the grid cylinder; the driving rollers are rotationally arranged in the fixing frame; the upper crushing roller is slidingly arranged on the driving roller; the lower crushing roller is fixedly arranged at the lower end of the driving roller; and the floating box is arranged on the upper crushing roller, so that the middle position of the upper crushing roller is flush with the liquid surface. The upper crushing roller which can float with the liquid surface is combined with the lower crushing roller which is fixed to the bottom, and the differential material selection and the gear gap design are matched, so that the suspended and floating objects and the precipitated hard objects in water can be crushed in different areas and efficiently, the tool wear is balanced, and the overall service life is prolonged.

Description

Technical Field

[0001] This invention relates to the field of pump station technology, and more particularly to integrated pump stations. Background Technology

[0002] Integrated prefabricated pumping stations are widely used in municipal drainage, sewage lifting and rainwater collection, due to their advantages such as high integration, convenient installation and space saving. Their core function is to lift fluids.

[0003] In the prior art, a shredder is usually installed at the inlet of the pumping station. For example, the integrated drainage pumping station disclosed in the invention patent with publication number CN118166897A has an inlet on the lower left side of the outer wall of the integrated well. A shredder lifting cable and a shredder are installed inside the integrated well, and the shredder is connected to the inlet. The shredder is used to intercept and shred solid impurities in the fluid to prevent blockage of the booster pump and subsequent pipelines.

[0004] However, traditional shredders typically use a single type of crushing blade, which makes it difficult to efficiently process impurities in sewage with large differences in density and hardness (such as hard sand and gravel at the bottom and suspended plastic fabrics). This results in uneven blade wear and shortened lifespan. At the same time, the influent flow and water level fluctuate during pump station operation, and the fixed crushing device cannot dynamically adapt to changes in the liquid level, causing some floating objects to "escape" from above the device and reducing the anti-clogging performance of the pump station. Summary of the Invention

[0005] In view of this, the present invention proposes an integrated pump station that can pulverize impurities in water in a zoned and targeted manner, balance the wear of the blades, and extend the overall service life of the device.

[0006] The technical solution of this invention is implemented as follows: This invention provides an integrated pumping station, including a pump box, a fixed frame, a grid cylinder, two drive rollers, an upper crushing roller, a lower crushing roller, and a float. An inlet pipe is fixedly fixed through the periphery of the pump box. The fixed frame is fixedly installed inside the inlet pipe. The grid cylinder is fixedly installed inside the fixed frame, and the two ends of the inlet pipe are connected through the grid cylinder. The drive rollers are rotatably installed inside the fixed frame. The upper crushing roller is slidably installed on the drive roller. The lower crushing roller is fixedly installed at the lower end of the drive roller. The upper and lower crushing rollers correspond one-to-one with the drive rollers and are located on one side of the grid cylinder. The float is installed on the upper crushing roller, such that the middle position of the upper crushing roller is flush with the liquid surface.

[0007] Based on the above technical solutions, preferably, the grid cylinder includes two end plates and multiple baffles, the two end plates are respectively fixedly disposed on the top and bottom sides of the fixing frame; the baffles are fixedly disposed between the two end plates, and the multiple baffles are arranged in a circumferential array around the center line of the end plates.

[0008] Based on the above technical solutions, preferably, the grid cylinder further includes multiple flow plates, which are fixedly mounted on the baffle and parallel to the horizontal plane, with adjacent flow plates spaced apart.

[0009] Based on the above technical solutions, preferably, two grid cylinders are provided, and the upper crushing roller and the lower crushing roller are both arranged between the two grid cylinders.

[0010] Based on the above technical solutions, preferably, the pontoon is slidably mounted on the baffle, and both upper crushing rollers are rotatably connected to the pontoon.

[0011] Based on the above technical solutions, preferably, a flexible baffle is also included, one end of which is fixedly mounted on the float box, and the other end is rotatably connected to the lower crushing roller to block the gap between the float box and the lower crushing roller.

[0012] Based on the above technical solutions, preferably, the flexible baffle includes a top frame, a bottom frame, and multiple sliding plates. Each sliding plate includes a vertical part, an upper end, a lower end, and a limiting part. The top frame is fixedly disposed on the bottom side of the float box. The bottom frame is rotatably disposed between the two lower crushing rollers. The upper end and the lower end are integrally formed at both ends of the vertical part and are parallel to the horizontal plane. The lower end is sealed and abuts against the vertical part adjacent to it. The lower end is slidably disposed on the baffle rod. The upper end located at one end of the flexible baffle is fixedly disposed on the top frame, and the lower end located at the other end of the flexible baffle is fixedly disposed on the bottom frame. The limiting part is integrally formed on the side of the vertical part away from the lower end.

[0013] Based on the above technical solutions, preferably, the side of the float box away from the pump box is inclined.

[0014] Based on the above technical solutions, preferably, the pontoon is provided with a filling port.

[0015] Based on the above technical solutions, preferably, a lift pump is also included. A water outlet pipe is provided on the periphery of the pump box. The water outlet pipe is located above the water inlet pipe. The lift pump is fixedly installed inside the pump box and is used to lift the water at the bottom of the pump box to the water outlet pipe.

[0016] The integrated pump station of the present invention has the following advantages over the prior art: (1) By setting up an upper crushing roller that can float with the liquid surface and a lower crushing roller that is fixed at the bottom, and with the combination of differentiated material selection and tooth gap design, it is possible to achieve regional, targeted and efficient crushing of suspended floating objects and sedimentary hard objects in water, significantly balancing the wear of the blades and extending the overall service life.

[0017] (2) By setting a deformable flexible baffle, not only can the gap formed between the floating box and the lower crushing roller be blocked, but also the impurities can be guided and diverted, reducing turbulence and impurity accumulation, and ensuring the smooth progress of the filtration and crushing process.

[0018] (3) By making both the float box and the sliding plate slide connected to the baffle, and by having the end of the sliding plate pass through the grid tube, not only is the stable floating of the float box and the flexible baffle achieved, but the filtration reliability of the pump station under complex working conditions is also improved. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a cross-sectional view of the integrated pump station of the present invention.

[0021] Figure 2 This is a perspective view of the water-facing side of the fixed frame in the integrated pump station of the present invention.

[0022] Figure 3 This is a perspective view of the backwater side of the fixed frame in the integrated pump station of the present invention.

[0023] Figure 4 This is a cross-sectional view of the fixed frame in the integrated pump station of the present invention.

[0024] Figure 5 This is a perspective view of the drive roller in the integrated pump station of the present invention.

[0025] Figure 6 This is a perspective view of the screen cylinder in the integrated pump station of the present invention.

[0026] Figure 7 This is a front view of the float box and flexible baffle in the integrated pump station of the present invention.

[0027] Figure 8 This is a front view of the flexible baffle in the integrated pump station of the present invention.

[0028] Figure 9 This is a perspective view of the end position of the sliding plate in the integrated pump station of the present invention.

[0029] Figure 10 This is a perspective view of the end position of the float box in the integrated pump station of the present invention.

[0030] The components include: 1. Pump box; 101. Inlet pipe; 102. Outlet pipe; 2. Fixing frame; 3. Grille cylinder; 31. End plate; 32. Baffle bar; 33. Flow plate; 4. Drive roller; 5. Upper crushing roller; 6. Lower crushing roller; 7. Float box; 701. Filling port; 8. Flexible baffle; 81. Top frame; 82. Base frame; 83. Sliding plate; 801. Vertical part; 802. Upper end; 803. Lower end; 804. Limiting part; 9. Lifting pump. Detailed Implementation

[0031] The technical solutions of this invention will be clearly and completely described below with reference to specific embodiments. Obviously, the described embodiments are only a part of the embodiments of this invention, and not all of them. Based on the embodiments of this invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this invention.

[0032] The integrated pump station of the present invention includes a pump box 1, a fixed frame 2, a grid cylinder 3, a drive roller 4, an upper crushing roller 5, a lower crushing roller 6, a float box 7, a flexible baffle 8, and a lifting pump 9.

[0033] Pump box 1 is a hollow tank structure, usually cylindrical or cuboid in shape. An inlet pipe 101 and an outlet pipe 102 are fixedly installed on the periphery of pump box 1, with the outlet pipe 102 located above the inlet pipe 101. A lift pump 9 is fixedly installed at the bottom of pump box 1. During operation, water flows into pump box 1 through inlet pipe 101, and then the lift pump 9 lifts the water from the bottom of pump box 1 to outlet pipe 102, allowing the water to be discharged through outlet pipe 102, thus achieving the water lifting function.

[0034] When the pumping station is used in the sewage field, a filtration and pulverizing mechanism is installed in the inlet pipe 101 to prevent impurities from clogging the booster pump 9 and the pipeline. This mechanism includes a fixed frame 2, a bar screen 3, a drive roller 4, and a crushing roller. The fixed frame 2 is fixedly installed in the inlet pipe 101, the bar screen 3 is fixedly installed in the fixed frame 2, and the two ends of the inlet pipe 101 are connected through the bar screen 3. The drive roller 4 is rotatably installed in the fixed frame 2, and there are two drive rollers 4, each with a crushing roller.

[0035] like Figure 4As shown, when the sewage flows from left to right, clean water and fine particles can pass through the screen cylinder 3, while larger particles are blocked by the screen cylinder 3 and guided between the two drive rollers 4. The drive rollers 4 are driven by a motor or other equipment, which drives the two crushing rollers to rotate in opposite directions. The meshing of the two crushing rollers crushes the larger particles into smaller particles, thereby preventing impurities from accumulating on the left side of the screen cylinder 3 and causing blockage.

[0036] like Figure 5 As shown, two drive rollers 4 are arranged in parallel, and a gear is fixed coaxially on each of the two drive rollers 4. The two gears mesh with each other. When the motor drives one of the drive rollers 4 to rotate, the meshing of the two gears can drive the other drive roller 4 to rotate in the opposite direction, thereby realizing the opposite rotation of the two crushing rollers and ensuring the coordination and efficiency of the crushing action.

[0037] Impurities in wastewater are generally divided into two types: one is sediment with higher density and harder material, such as stones and metal fragments, and the other is floating matter with lower density and softer material, such as materials, fabrics and branches.

[0038] To address the coexistence and varying locations of hard sediments and soft floating debris in wastewater, this application employs a combination of an upper crushing roller 5, a lower crushing roller 6, and a float box 7. The lower crushing roller 6 is fixedly mounted at the lower end of the drive roller 4, while the upper crushing roller 5 is mounted on the drive roller 4 and can slide along its axial direction. Both the upper and lower crushing rollers correspond one-to-one with the drive roller 4 and are located on one side of the screen cylinder 3. The float box 7 is mounted on the upper crushing roller 5. When water flows through the fixed frame 2, the buoyancy generated by the float box 7 causes the upper crushing roller 5 to slide, keeping its middle position flush with the liquid surface. Thus, the lower crushing roller 6 is responsible for crushing the sediments settled at the bottom of the pump box 1, while the upper crushing roller 5 specifically crushes the floating debris suspended on the liquid surface.

[0039] This design offers two advantages: First, the lower crushing roller 6 is made of a material with a higher hardness than the upper crushing roller 5, and the gap between two adjacent meshing teeth in the upper crushing roller 5 is smaller than that in the lower crushing roller 6. This differentiated design and material selection allows both rollers to better adapt to the characteristics of their respective target impurities, thereby significantly balancing the wear state, extending service life, and reducing production and maintenance costs. Second, the upper crushing roller 5 can automatically rise and fall with the liquid level, always dynamically maintaining itself in the optimal working position for crushing floating objects. This not only effectively addresses liquid level fluctuations during operation but also fundamentally avoids the problem of floating objects overflowing from the top, thus improving the reliability of the device.

[0040] In a preferred embodiment, the upper crushing roller 5 includes multiple meshing teeth and a sleeve. The meshing teeth are coaxially fixed on the sleeve, which has a tubular structure and a hexagonal cross-section of its internal cavity. The cross-section of the drive roller 4 is also hexagonal, thereby enabling the upper crushing roller 5 to be slidably connected to the drive roller 4.

[0041] like Figure 1 As shown, in order to improve the flow stability of the water flowing through the crushing roller area, this application increases the length of the inlet pipe 101 and makes one end of the inlet pipe 101 pass through and extend into the pump box 1, which helps to stratify the impurities in the water and make the water flow more stable before entering the crushing zone, thereby ensuring the stability of the position of the upper crushing roller 5.

[0042] like Figure 6 As shown, the bar screen 3 includes two end plates 31, multiple baffles 32 and multiple flow plates 33. The two end plates 31 are respectively fixedly installed on the top and bottom sides of the fixed frame 2. The multiple baffles 32 are fixedly installed between the two end plates 31 and arranged in a circumferential array around the center line of the end plates 31. Water can flow into the pump box 1 through the gap between two adjacent baffles 32.

[0043] like Figure 2 and Figure 6 As shown, the flow plates 33 are fixedly arranged between multiple baffles 32, with adjacent flow plates 33 spaced apart. The flow plates 33 are parallel to the horizontal plane. When water flows through the grid cylinder 3, these flow plates 33 parallel to the horizontal plane can effectively counteract the up-and-down fluctuations of the water flow, making the flow more stable and creating stable conditions for the subsequent crushing process. At the same time, the arrangement of the flow plates 33 also shortens the longitudinal length of the interval between two adjacent baffles 32, which can effectively block slender impurities from passing through and improve the pretreatment accuracy of the grid cylinder 3.

[0044] like Figure 2 and Figure 3 As shown, two grid cylinders 3 are preferably configured. The two grid cylinders 3 are arranged opposite each other in the fixed frame 2, and the upper crushing roller 5 and the lower crushing roller 6 are both arranged between the two grid cylinders 3. This symmetrical layout improves the balance of the device and makes the flow field distribution more uniform and stable when the water flows through the fixed frame 2.

[0045] like Figure 2 and Figure 3 As shown, only one pontoon 7 is provided, and both upper crushing rollers 5 are rotatably connected to the pontoon 7, thereby ensuring that the two upper crushing rollers 5 can rise and fall synchronously; in order to further improve the stability of the pontoon 7 and the upper crushing rollers 5 during the rising and falling process, as follows: Figure 10 As shown, it is preferable to make the float 7 slidably connected to the stop bar 32.

[0046] When the water level is high, the float box 7 and the upper crushing roller 5 float upwards, creating a gap between the float box 7 and the lower crushing roller 6. Although there are fewer impurities in this area, in order to completely eliminate the risk of blockage and improve the overall anti-blockage capability of the pumping station, it is still necessary to effectively seal this gap.

[0047] One end of the flexible baffle 8 is fixedly mounted on the float box 7, and the other end is rotatably connected to the lower crushing roller 6. It is used to block the gap generated between the float box 7 and the lower crushing roller 6. The flexible baffle 8 has flexible deformation capability. When the gap between the float box 7 and the lower crushing roller 6 changes with the liquid level, the flexible baffle 8 can automatically adapt and expand to seal the gap.

[0048] In a preferred embodiment, the flexible baffle 8 includes a top frame 81, a bottom frame 82, and a plurality of sliding plates 83. Each sliding plate 83 includes a vertical portion 801, an upper end portion 802, a lower end portion 803, and a limiting portion 804. Figure 7 and Figure 8 As shown, the top frame 81 is fixedly mounted on the bottom side of the float box 7, and the bottom frame 82 is rotatably mounted between the two lower crushing rollers 6. The upper end 802 and the lower end 803 are integrally formed on both ends of the vertical part 801, and are both parallel to the horizontal plane. The lower end 803 is slidably connected to the adjacent vertical part 801 and sealed against it. The upper end 802 at the uppermost end of the flexible baffle 8 is fixedly mounted on the top frame 81, and the lower end 803 at the lowermost end of the flexible baffle 8 is fixedly mounted on the bottom frame 82. The limiting part 804 is integrally formed on the side of the vertical part 801 away from the lower end 803, and the lower end 803 is located between the adjacent upper end 802 and the limiting part 804. Through the sliding cooperation between the lower end 803 and the vertical part 801, the overall height of the flexible baffle 8 can be changed, thereby effectively blocking gaps of different longitudinal widths. Among them, the sliding plate 83 can be a mesh plate structure, that is, the sliding plate 83 is densely covered with a number of small filter holes, which allows water to pass through smoothly, while impurities cannot pass through the filter holes and are blocked on the water-facing side of the flexible baffle 8, thus achieving a combination of sealing and flow.

[0049] like Figure 9 As shown, on the one hand, the lower end 803 is slidably connected to the baffle 32, which ensures the stable lifting and lowering of the lower end 803, thereby ensuring that the lower end 803 is stably abutted against the adjacent vertical part 801; on the other hand, the end of the sliding plate 83 extends into the grid cylinder 3, so that there is no gap between the sliding plate 83 and the periphery of the grid cylinder 3, completely eliminating the possibility of impurities bypassing the crushing roller, and further improving the filtration reliability of the pump station.

[0050] like Figure 6As shown, the side of the float box 7 away from the pump box 1 is inclined, that is, the water-facing side of the float box 7 is an inclined surface. When the water flows from left to right, the impurities located in the middle position are effectively driven and concentrated to the meshing area of ​​the upper crushing roller 5 and the lower crushing roller 6 under the synergistic guiding effect of the inclined side of the float box 7 and the flexible baffle 8, thereby ensuring that the impurities are fully captured and crushed, and improving the crushing efficiency.

[0051] To achieve the floating effect of the pontoon 7, it is preferable to design the pontoon 7 as a hollow, sealed structure. For example... Figure 3 As shown, the float box 7 is equipped with a filling port 701. Water is added to or discharged into the float box 7 through the filling port 701 to actively adjust the position of the float box 7 and the upper crushing roller 5. This allows the device to flexibly adapt to different characteristics of influent impurities or special working conditions, thereby enhancing the adjustability and applicability of the equipment.

[0052] The working principle of the integrated pump station of the present invention is as follows: Wastewater flows in through inlet pipe 101 and undergoes preliminary filtration through screen cylinders 3. Screen cylinders 3 intercept large particles of impurities in the water and guide them between two screen cylinders 3. Driven by a motor, the drive roller 4 rotates the upper crushing roller 5 and lower crushing roller 6 in opposite directions, crushing the large impurities between the two screen cylinders 3 into fine particles. These finely crushed particles then flow with the water into the bottom of pump box 1, where they are finally pressurized by the lift pump 9 and transported to a higher location through outlet pipe 102, thus completing the lifting and discharge of wastewater. During this process, the wastewater flows smoothly through inlet pipe 101, and impurities naturally stratify. The fixed lower crushing roller 6 is responsible for crushing hard sediments at the bottom, while the upper crushing roller 5, supported by buoyancy through a float box 7, automatically rises and falls with the liquid level, always aligned with the surface, specifically for crushing floating objects, thus achieving precise crushing of different types of impurities. Simultaneously, a flexible baffle 8 dynamically seals between the float box 7 and the lower crushing roller 6, preventing impurities from leaking out and further enhancing the automatic filtration capacity of the pump station.

[0053] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. An integrated pumping station, characterized in that: It includes a pump box (1), a fixed frame (2), a grid cylinder (3), two drive rollers (4), an upper crushing roller (5), a lower crushing roller (6), and a float box (7), wherein, A water inlet pipe (101) is fixed through the periphery of the pump box (1). The fixing bracket (2) is fixedly installed inside the water inlet pipe (101); The grid cylinder (3) is fixedly installed inside the fixed frame (2), and the two ends of the water inlet pipe (101) are connected through the grid cylinder (3); The drive roller (4) is rotatably mounted inside the fixed frame (2); The upper crushing roller (5) is slidably disposed on the drive roller (4); The lower crushing roller (6) is fixedly disposed at the lower end of the drive roller (4). The upper crushing roller (5) and the lower crushing roller (6) are respectively corresponding to the drive roller (4) and located on one side of the grid cylinder (3). The float (7) is set on the upper crushing roller (5) so that the middle position of the upper crushing roller (5) is flush with the liquid surface.

2. The integrated pumping station as described in claim 1, characterized in that: The grid cylinder (3) includes two end plates (31) and multiple baffles (32). The two end plates (31) are respectively fixedly installed on the top and bottom sides of the fixed frame (2). The baffles (32) are fixedly installed between the two end plates (31), and the multiple baffles (32) are arranged in a circumferential array around the center line of the end plates (31).

3. The integrated pumping station as described in claim 2, characterized in that: The grid cylinder (3) also includes multiple flow plates (33), which are fixedly mounted on the baffle (32) and parallel to the horizontal plane, with adjacent flow plates (33) spaced apart.

4. The integrated pumping station as described in claim 3, characterized in that: Two grid cylinders (3) are provided, and the upper crushing roller (5) and the lower crushing roller (6) are both provided between the two grid cylinders (3).

5. The integrated pumping station as described in claim 2, characterized in that: The pontoon (7) is slidably mounted on the baffle (32), and both upper crushing rollers (5) are rotatably connected to the pontoon (7).

6. The integrated pumping station as described in claim 5, characterized in that: It also includes a flexible baffle (8), one end of which is fixedly mounted on the float (7), and the other end is rotatably connected to the lower crushing roller (6) to block the gap between the float (7) and the lower crushing roller (6).

7. The integrated pumping station as described in claim 6, characterized in that: The flexible baffle (8) includes a top frame (81), a bottom frame (82), and multiple sliding plates (83). Each sliding plate (83) includes a vertical part (801), an upper end (802), a lower end (803), and a limiting part (804). The top frame (81) is fixedly disposed on the bottom side of the float (7). The bottom frame (82) is rotatably disposed between the two lower crushing rollers (6). The upper end (802) and the lower end (803) are integrally formed at both ends of the vertical part (801) and are both perpendicular to the horizontal. The surfaces are parallel, and the lower end (803) is sealed and abuts against the vertical part (801) adjacent to it; the lower end (803) is slidably disposed on the stop bar (32); the upper end (802) located at one end of the flexible baffle (8) is fixedly disposed on the top frame (81), and the lower end (803) located at the other end of the flexible baffle (8) is fixedly disposed on the base frame (82); the limiting part (804) is integrally formed on the side of the vertical part (801) away from the lower end (803).

8. The integrated pumping station as described in claim 7, characterized in that: The float box (7) is tilted on the side away from the pump box (1).

9. The integrated pumping station as described in claim 1, characterized in that: The pontoon (7) is provided with a filling port (701).

10. The integrated pumping station as described in claim 1, characterized in that: It also includes a lift pump (9), and a water outlet pipe (102) is provided on the periphery of the pump box (1). The water outlet pipe (102) is located above the water inlet pipe (101). The lift pump (9) is fixedly installed in the pump box (1) and is used to lift the water at the bottom of the pump box (1) to the water outlet pipe (102).

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