Vortex horizontal pump front filter

Abstract

The utility model relates to a vortex horizontal pump front filter which comprises a filter cylinder composed of a filter screen and a cylinder body, a cavity inner cover is arranged in the filter cylinder, one end of the inner cover is fixedly connected with the cylinder body on the corresponding side to form a non-open end, the other end of the inner cover is an open end, and a rotatable impeller is arranged in the open end. A water outlet pipe is fixedly inserted in the center of the cylinder on the side, the inner end of the water outlet pipe is closed and extends into the inner cover, and a water inlet pipe is arranged between the water outlet pipe and the inner cover and is communicated with the water outlet pipe; and the inner end of the shaft extends towards the opposite side of the cylinder body and is connected with the closed end of the water outlet pipe. The vortex generated by rotation of the impeller can enhance the flow near the water inlet, so that the adaptability is higher.

Description

Technical Field

[0001] This application relates to a pre-pump filter, and more particularly to a vortex horizontal pre-pump filter. Background Technology

[0002] A pre-pump filtration device is a filtration system placed in a water body. It consists of a water impeller outlet and a filter cartridge. The water impeller outlet is connected to a water pump. As the pump draws water, it passes through the filter screen encased in the side wall of the filter cartridge, where it is filtered and purified before flowing back into the pump from the water impeller outlet. This prevents impurities from entering the pump. However, the rotation of the filter cartridge is driven by a motor, which is typically set to a constant power output. This means the filter cartridge's rotational speed remains constant and does not change with the volume of water entering the cartridge. Therefore, this type of pre-pump filtration device cannot be used in areas where electricity is difficult to obtain.

[0003] To address the shortcomings of the existing technology, Chinese utility model patent CN202020811017.6 discloses a hydraulically driven horizontal pre-pump self-cleaning filter. The filter includes a support frame, a filter cartridge housed within the support frame, and a drain pipe extending from one end of the filter cartridge, with its outlet connected to the water pump inlet. A turbine shaft is housed within the drain pipe, with turbines spaced apart on the turbine shaft. Bearing assemblies are located on both sides of the filter cartridge, one bearing assembly externally fitted with a three-stage driven wheel fixedly connected to the filter cartridge. One end of the turbine shaft extends from the side wall of the filter cartridge and passes through another bearing assembly, with a drive wheel mounted on the extended end. A transmission shaft is mounted on the support beam, with a primary driven wheel and a secondary driven wheel mounted at each end. The primary driven wheel is linked to the drive wheel, and the secondary driven wheel is linked to the tertiary driven wheel. This utility model patent utilizes hydraulic drive, allowing the drum speed to be automatically adjusted according to the water output. Normal pressure water flow can drive the filter cartridge, making it more versatile. However, because the inlet is located on the wall of the drain pipe, the drain pipe must be below the water surface during use. Otherwise, air will be drawn in, resulting in insufficient pump suction for filtration, causing water flow to stagnate and the filter cartridge to stop rotating. The horizontal structure places the inlet near the axis of the filter cartridge, at a relatively high position. Therefore, at lower water levels, the water level cannot exceed the inlet, rendering it unusable. Furthermore, since water extraction is powered by a pump, the inlet, being far from the pump, experiences a relatively low flow velocity, resulting in lower extraction efficiency compared to this application.

[0004] Therefore, it is necessary to design a vortex horizontal pre-pump filter that can meet both high-water-level and low-water-level pumping filtration requirements. Summary of the Invention

[0005] The purpose of this application is to provide a vortex horizontal pump pre-filter that can concentrate water flow towards the inner wall of the inner casing by using the vortex generated by the impeller rotation, whether the liquid level is high or low, so that the water flow can enter through the inlet.

[0006] This application is implemented as follows: A vortex horizontal pre-pump filter includes a filter cartridge composed of a filter screen and a cylinder. A cavity inner cover is provided inside the filter cartridge. One end of the inner cover is fixedly connected to the corresponding side of the cylinder to form a non-open end, and the other end of the inner cover is an open end. A rotatable impeller is provided inside the open end. A water outlet pipe is fixedly inserted at the center of the cylinder on that side. The inner end of the water outlet pipe is closed and extends into the inner cover. A water inlet pipe is provided between the water outlet pipe and the inner cover, and the water inlet pipe is connected to the water outlet pipe. A shaft is inserted at the center of the cylinder on the other side. The inner end of the shaft extends towards the opposite side of the cylinder and is connected to the closed end of the water outlet pipe.

[0007] The filter cartridge is cylindrical, consisting of two circular cylindrical bodies on both sides, with a filter screen covering the circumference of the cylindrical bodies.

[0008] The water inlet pipe is L-shaped, including an inlet and an outlet. The inlet faces the open end of the inner cover and is located on the right side of the impeller. An opening is provided on the lower side wall of the outlet pipe, and the outlet is connected to the opening.

[0009] A gap is left between the impeller and the open end of the inner cover, thus forming a cavity between the left side of the impeller and the inner cover.

[0010] A water supply pipe is installed inside the outlet pipe. The inner end of the water supply pipe is closed, and it extends out of the closed end of the outlet pipe to the outside of the inner cover and is fixedly connected to the shaft. The outer end of the water supply pipe extends out of the wall of the outlet pipe and is connected to the outlet of the water supply device.

[0011] Inside the filter cartridge outside the inner cover, a rinsing pipe is arranged parallel to the axial side. The rinsing pipe is covered with nozzles, which face the inner wall of the filter screen. The inlet of the rinsing pipe is connected to the water supply pipe.

[0012] The impeller is rotatably connected to the shaft via bearings, and the inner end of the shaft is directly and fixedly connected to the closed end of the outlet pipe.

[0013] The impeller is rotatably connected to the water supply pipe via bearings. The shaft is first fixedly connected to the closed end of the water supply pipe. The water supply pipe is inserted into the closed end of the outlet pipe. The shaft is indirectly fixedly connected to the closed end of the outlet pipe.

[0014] The outer circumferential surface of the impeller is not connected to the inner wall of the inner casing.

[0015] The outer circumferential surface of the impeller is fixedly connected to the inner wall of the inner cover.

[0016] By implementing the above technical solution, this application confines the water flow within the inner casing of the mesh bucket by setting an inner cover. Then, an impeller agitates the water flow to create a vortex, concentrating the water flow towards the inner wall of the inner casing. The water finally enters the outlet pipe through the inlet pipe located at the bottom of the inner casing, thus improving pumping efficiency while meeting low water level pumping requirements. Simultaneously, a flushing pipe can clean the inner wall of the mesh bucket, preventing clogging of the mesh and ensuring proper water intake. This application utilizes the vortex generated by the impeller rotation to enhance the flow rate near the inlet, thus making it more adaptable. Attached Figure Description

[0017] The specific structure of this application is given by the following figures and embodiments:

[0018] Figure 1 This is a structural schematic diagram of the present application when the impeller and inner cover are separated;

[0019] Figure 2 This is a structural diagram of the present application when the impeller is connected to the inner cover;

[0020] Figure 3 This is a schematic diagram of the connection between the inlet pipe and the outlet pipe;

[0021] Figure 4 This is a structural diagram of the present application with the flushing pipe and water supply pipe removed.

[0022] Legend: 1. Cylinder, 2. Filter screen, 3. Flushing pipe, 4. Impeller, 5. Inner cover, 6. First bearing, 7. Water supply pipe, 8. Water outlet pipe, 9. Water inlet pipe, 10. Shaft, 11. Second bearing, 12. Water inlet, 13. Water outlet, 14. Support. Detailed Implementation

[0023] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0024] In the description of this application, it should be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0025] Example: Figure 1-4As shown, the vortex horizontal pump pre-filter includes a filter cartridge consisting of a filter screen 2 and a cylinder 1. A cavity inner cover 5 is provided inside the filter cartridge. One end of the inner cover 5 is fixedly connected to the corresponding side of the cylinder 1 to form a non-open end, and the other end of the inner cover 5 is an open end. A rotatable impeller 4 is provided inside the open end. A water outlet pipe 8 is fixedly inserted into the center of the cylinder 1 on this side. The inner end of the water outlet pipe 8 is closed and extends into the inner cover 5. A water inlet pipe 9 is provided between the water outlet pipe 5 and the inner cover 5, and the water inlet pipe 9 is connected to the water outlet pipe 5. A shaft 10 is inserted through the center of the other side of the cylinder 1. The inner end of the shaft 10 extends toward the opposite side of the cylinder 1 and is fixedly connected to the closed end of the water outlet pipe 8.

[0026] Furthermore, the filter cartridge is cylindrical, including two circular cylinders 1 on both sides, with a filter screen 2 covering the circumference of the cylinder 1, and water flows into the filter cartridge through the filter screen 2.

[0027] Furthermore, the inlet pipe 9 is L-shaped, including an inlet 12 and an outlet 13. The inlet 12 faces the open end of the inner cover 5 and is located to the right of the impeller 4. An opening is formed on the lower wall of the outlet pipe 8, and the outlet 13 connects to the opening, so that the inlet pipe 9 and the outlet pipe 8 are connected. The inlet pipe 9 is preferably located between the outlet pipe 5 and the lower part of the inner cover 5, below the outlet pipe 8.

[0028] Furthermore, such as Figure 4 As shown, the impeller 4 is rotatably connected to the shaft 10 via a bearing, and at this time the inner end of the shaft 10 is directly and fixedly connected to the closed end of the water outlet pipe 9.

[0029] Furthermore, a gap is left between the impeller 4 and the open end of the inner cover 5, thus forming a cavity between the left side of the impeller 4 and the inner cover 5 where the water flow easily forms a vortex. When the impeller 4 rotates, a local vortex will first form within this space, and then diffuse to the left and right sides of the impeller 4, causing the water flow within this space and behind it to concentrate on the inner wall of the inner cover 5, so that it can be more concentratedly drawn out from the outlet pipe 9.

[0030] The outer end of the outlet pipe 9 is connected to the water pump inlet. During use, the entire device is placed in the water flow, ensuring the water level is higher than the highest point of the inlet 12 of the inlet pipe 9. After starting the water pump, water flows from outside the filter cartridge, through the filter screen 2, into the filter cartridge, and flows towards the inner cover 5. As the water flows past the impeller 4, it drives the impeller 4 to rotate, creating a vortex at the impeller 4. The water, agitated by the impeller 4, is concentrated towards the side wall of the inner cover 5 and flows from the inlet pipe 9 to the outlet pipe 8. Because the inlet pipe 9 is located at the bottom, it can meet the needs of pumping water at lower water levels. When the water level is higher, the vortex can quickly guide the water flow towards the inlet 12 of the inlet pipe 9, thereby improving pumping efficiency.

[0031] Furthermore, such as Figure 1-3As shown, a water supply pipe 8 is installed inside the outlet pipe 8. The inner end of the water supply pipe 8 is closed, and it extends from the closed end of the outlet pipe 8 to the outside of the inner cover 5 and is fixedly connected to the shaft 10. The outer end of the water supply pipe 8 extends from the wall of the outlet pipe 8 and connects to the outlet of the water supply device. For example, a tee can be installed at the outlet of the water pump, with one tee connected to the outer end of the water supply pipe 8, one tee connected to the outlet of the water pump, and one tee connected to the water supply pipeline.

[0032] Furthermore, inside the filter cartridge outside the inner cover 5, a rinsing pipe 3 is arranged parallel to the shaft 10 side. The rinsing pipe 3 is covered with nozzles, which face the inner wall of the filter screen 2. The inlet of the rinsing pipe 3 is connected to the pipe wall near the closed end of the water supply pipe 8.

[0033] Furthermore, the impeller 4 is rotatably connected to the water supply pipe 8 via a bearing. At this time, the shaft 10 is first fixedly connected to the closed end of the water supply pipe 8, the water supply pipe 8 is inserted into the closed end of the outlet pipe 8, and the shaft 10 is indirectly fixedly connected to the closed end of the outlet pipe 8.

[0034] like Figure 1 As shown, the outer circumferential surface of the impeller 4 is not connected to the inner wall of the inner cover 5. During water pumping, the impeller 4 rotates, while the inner cover 5 and the filter cartridge do not rotate. With this structure, the filter screen 2 can be backwashed through the fixed flushing pipe 3 to remove impurities adhering to it and prevent the filter screen from clogging. However, since the filter cartridge does not rotate, the flushing effect is not good.

[0035] Therefore, the preferred embodiment of this application is, as follows: Figure 2 As shown, the outer circumferential surface of the impeller 4 is fixedly connected to the inner wall of the inner cover 5. When pumping water, the impeller 4 drives the inner cover 5 to rotate, thereby driving the filter cylinder to rotate. With this structure, the filter screen 2 can be backwashed through the fixed flushing pipe 3 to remove the impurities attached to it and prevent the filter screen from clogging.

[0036] A first bearing 6 is installed between the water outlet pipe 8 and the cylinder 1, and a second bearing 11 is installed between the shaft 10 and the cylinder 1.

[0037] In practical use, the filter cartridge is placed horizontally inside the support 14. The outer end of the shaft 10 is fixed to the inner crossbeam on one side of the support 14, and the outer end of the outlet pipe 8 is fixed to the inner crossbeam on the other side of the support 14. The support 14 is existing technology, which includes symmetrically arranged triangular frames, with an inner crossbeam inside each frame, and an outer crossbeam connecting the upper or lower ends of the two triangular frames. This application uses the impeller 4 to create a vortex, making it easier for the water flow to concentrate towards the lower side wall of the inner cover 5. Correspondingly, the water inlet pipe 9 is located on the lower side, causing the water flow to concentrate towards the inlet of the water inlet pipe 9, which is beneficial for the pump's pumping. Because the water inlet pipe 9 is located at a low position, the water level requirement is reduced. Thus, at low water levels, pumping can be carried out as long as the water surface is higher than the upper end of the inlet 12.

[0038] The above technical features constitute the embodiments of this application, which have strong adaptability and implementation effect. Non-essential technical features can be added or removed according to actual needs to meet the needs of different situations.

Claims

1. A vortex horizontal pre-pump filter, comprising a horizontally placed filter cartridge, characterized in that: A cavity inner cover is provided inside the filter cartridge. One end of the inner cover is fixedly connected to the corresponding side of the cartridge to form a closed end, while the other end of the inner cover is an open end. A rotatable impeller is provided inside the open end. A water outlet pipe is fixedly inserted into the center of the cartridge on that side. The inner end of the water outlet pipe is closed and extends into the inner cover. A water inlet pipe is provided between the water outlet pipe and the inner cover, and the water inlet pipe is connected to the water outlet pipe. A shaft is inserted through the center of the cartridge on the other side. The inner end of the shaft extends towards the opposite side of the cartridge and connects to the closed end of the water outlet pipe.

2. The vortex horizontal pre-pump filter according to claim 1, characterized in that: The filter cartridge is cylindrical, consisting of two circular cylindrical bodies on both sides, with a filter screen covering the circumference of the cylindrical bodies.

3. The vortex horizontal pre-pump filter according to claim 1, characterized in that: The water inlet pipe is L-shaped, including an inlet and an outlet. The inlet faces the open end of the inner cover and is located on the right side of the impeller. An opening is provided on the lower side wall of the outlet pipe, and the outlet is connected to the opening.

4. The vortex horizontal pre-pump filter according to claim 1, 2, or 3, characterized in that: A water supply pipe is installed inside the outlet pipe. The inner end of the water supply pipe is closed, and it extends out of the closed end of the outlet pipe to the outside of the inner cover and is fixedly connected to the shaft. The outer end of the water supply pipe extends out of the wall of the outlet pipe and is connected to the outlet of the water supply device.

5. The vortex horizontal pre-pump filter according to claim 4, characterized in that: Inside the filter cartridge outside the inner cover, a rinsing pipe is arranged parallel to the axial side. The rinsing pipe is covered with nozzles, which face the inner wall of the filter screen. The inlet of the rinsing pipe is connected to the water supply pipe.

6. The vortex horizontal pre-pump filter according to claim 1, characterized in that: The impeller is rotatably connected to the shaft via bearings, and the inner end of the shaft is directly and fixedly connected to the closed end of the outlet pipe.

7. The vortex horizontal pre-pump filter according to claim 4, characterized in that: The impeller is rotatably connected to the water supply pipe via bearings. The shaft is first fixedly connected to the closed end of the water supply pipe. The water supply pipe is inserted into the closed end of the outlet pipe. The shaft is indirectly fixedly connected to the closed end of the outlet pipe.

8. The vortex horizontal pre-pump filter according to claim 4, characterized in that: The outer circumferential surface of the impeller is not connected to the inner wall of the inner casing.

9. The vortex horizontal pre-pump filter according to claim 4, characterized in that: The outer circumferential surface of the impeller is fixedly connected to the inner wall of the inner cover.

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