Vortex vertical filter in front of pump

Abstract

The vortex vertical type pump front filter comprises a vertically-arranged filter cylinder, the filter cylinder comprises vertically-symmetrical cylinder bodies and a filter screen arranged between the cylinder bodies in a covering mode, a cavity inner cover with the upper end open is arranged on the lower portion in the filter cylinder, and the lower end of the inner cover is fixedly connected with the cylinder body on the lower side to form a non-open end. A rotatable impeller is arranged in the open end of the inner cover and can drive the inner cover to rotate, a water outlet pipe is fixedly inserted in the center of the cylinder on the lower side, the upper end of the water outlet pipe is closed and extends into the inner cover, water inlet pipes are symmetrically distributed between the water outlet pipe and the inner cover, and the water inlet pipes are communicated with the water outlet pipe; a shaft is inserted in the center of the upper cylinder; the lower end of the shaft is connected with the closed end of the water outlet pipe.

Description

Technical Field

[0001] This application relates to a pre-pump filter, and more particularly to a vortex vertical 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] In existing technologies, there are some hydraulically driven mesh cartridge filtration devices, but they are all horizontal. Because the inlet of a horizontal structure is relatively high, generally located near the axis of the filter cartridge, water below the inlet cannot be pumped out when the water level is low, failing to meet the pumping requirements at low water levels. Therefore, some vertical pre-pump filtration devices with submersible pumps have emerged. These devices have lower inlets, enabling pumping operations at low water levels, but the submersible pump draws water from bottom to top, requiring higher energy consumption.

[0004] Therefore, it is necessary to design a vertical vortex pre-pump filter that can extract water from lower levels, is hydraulically driven, and has low energy consumption. Summary of the Invention

[0005] The purpose of this application is to provide a vortex vertical 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, regardless of whether the liquid level is high or low, so that the water flow can be quickly sucked into the inlet.

[0006] This application is implemented as follows: A vortex vertical pre-pump filter includes a vertically arranged filter cartridge, which includes symmetrically arranged cylindrical bodies and a filter screen covering the space between the cylindrical bodies. A hollow inner cover with an open upper end is provided in the lower part of the filter cartridge. The lower end of the inner cover is fixedly connected to the lower cylindrical body to form a non-open end. A rotatable impeller is provided in the open end of the inner cover, which can drive the inner cover to rotate. A water outlet pipe is fixedly inserted at the center of the lower cylindrical body. The upper end of the water outlet pipe is closed and extends into the inner cover. Water inlet pipes are symmetrically distributed between the water outlet pipe and the inner cover, and the water inlet pipes are connected to the water outlet pipe. A shaft is inserted at the center of the upper cylindrical body, and the lower end of the shaft is connected to the closed end of the water outlet pipe.

[0007] 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 below the impeller. An opening is provided on the lower wall of the outlet pipe, and the outlet is connected to the opening.

[0008] A gap is left between the impeller and the open end of the inner cover, thus forming a cavity between the upper side of the impeller and the inner cover.

[0009] A water supply pipe is installed inside the outlet pipe. The upper end of the water supply pipe is closed, and it extends from the upper closed end of the outlet pipe to the outside of the inner cover and is fixedly connected to the lower end of the shaft. The lower end of the water supply pipe extends from the wall of the outlet pipe and is connected to the outlet of the water supply device.

[0010] Inside the filter cartridge on the upper side of the inner cover, at least one flushing pipe is arranged parallel to the axial side. The flushing pipe is covered with nozzles, which face the inner wall of the filter screen. The inlet of the flushing pipe is connected to the water supply pipe.

[0011] The impeller is rotatably connected to the water supply pipe via bearings, the shaft is fixedly connected to the closed end of the water supply pipe, and the water supply pipe is fixedly connected to the closed end of the outlet pipe.

[0012] The outer circumferential surface of the impeller is fixedly connected to the inner wall of the inner cover.

[0013] By implementing the above technical solution, this application, through vertical placement with the inlet as close to the bottom as possible, confines the water flow within the inner cover of the mesh bucket. An impeller then agitates the water flow, creating a vortex that concentrates the water towards the inner wall of the inner cover. The water ultimately enters the outlet pipe through the inlet pipe located between the inner cover and the outlet pipe. Simultaneously, a flushing pipe cleans 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 offering greater adaptability. Attached Figure Description

[0014] The specific structure of this application is given by the following figures and embodiments:

[0015] Figure 1 This is a schematic diagram of the structure of this application;

[0016] Figure 2 This is a top-view cross-sectional structural diagram of this application.

[0017] Legend: 1. Cylinder, 2. Second bearing, 3. Shaft, 4. Support, 5. Float, 6. Outlet pipe, 7. Water supply pipe, 8. First bearing, 9. Inlet pipe, 10. Inner cover, 11. Impeller, 12. Flushing pipe, 13. Filter screen, 14. Inlet, 15. Outlet. Detailed Implementation

[0018] 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.

[0019] 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.

[0020] Example: Figure 1-2 As shown, the vortex vertical pump pre-filter includes a vertically arranged filter cartridge, which includes symmetrically arranged cylindrical bodies 1 and a filter screen 13 covering the cylindrical bodies 1. A hollow inner cover 10 with an open upper end is provided in the lower part of the filter cartridge. The lower end of the inner cover 10 is fixedly connected to the lower cylindrical body 1 to form a non-open end. A rotatable impeller 11 is provided in the open end of the inner cover 10. The impeller 11 can drive the inner cover 10 to rotate. A water outlet pipe 6 is fixedly inserted into the center of the lower cylindrical body 1. The upper end of the water outlet pipe 6 is closed and extends into the inner cover 10. Water inlet pipes 9 are symmetrically distributed between the water outlet pipe 6 and the inner cover 10. The water inlet pipes 9 are connected to the water outlet pipe 6. A shaft 3 is inserted through the center of the upper cylindrical body 1. The lower end of the shaft 3 is connected to the closed end of the water outlet pipe 6.

[0021] Furthermore, the filter cartridge is cylindrical, including a circular cylinder 1 located on the upper and lower sides, and a filter screen 13 covering the circumference of the cylinder 1, with water flowing into the filter cartridge through the filter screen 13.

[0022] Furthermore, the water inlet pipe 9 is L-shaped, including an inlet 14 and an outlet 15. The inlet 14 faces the open end of the inner cover 10 and is located below the impeller 11. Openings corresponding to the outlet 15 are provided on both sides of the pipe wall of the outlet pipe 6. The outlet 15 is connected to the opening, so that the water inlet pipe 9 and the outlet pipe 6 are connected.

[0023] Furthermore, a gap is left between the impeller 11 and the open end of the inner cover 10, thus forming a cavity above the impeller 11 and between the inner cover 10, which facilitates the formation of vortices in the water flow. When the impeller 11 rotates, a local vortex will first form within this space, and then diffuse to the upper and lower sides of the impeller 11, causing the water flow in this space and on the lower side to concentrate towards the inner wall of the inner cover 10, so that it can be more concentratedly drawn out from the outlet pipe 6.

[0024] The lower end of the outlet pipe 9 is connected to the water pump inlet. In use, the entire application is placed inside the support 4, with a float 5 installed at the upper end of the support 4. The support 4, along with the application, is then placed underwater, ensuring the water level is higher than the inlet 14 of the inlet pipe 9. After the water pump is started, water flows from outside the filter cartridge, through the filter screen 13, into the filter cartridge, and flows towards the inner cover 5. As the water flows past the impeller 11, it drives the impeller 11 to rotate. The impeller 11 drives the inner cover 10 and the filter cartridge to rotate within the support 4. When the impeller 4 rotates, it generates a vortex. The water, stirred by the impeller 11, is concentrated towards the side wall of the inner cover 10 and flows from the inlet pipe 9 to the outlet pipe 6. Because the inlet pipe 9 is located near the bottom of the filter cartridge, 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 14 of the inlet pipe 9, thereby improving pumping efficiency.

[0025] Furthermore, a water supply pipe 7 is installed inside the outlet pipe 6. The upper end of the water supply pipe 7 is closed, and it extends from the upper closed end of the outlet pipe 6 to the outside of the inner cover 10, and is fixedly connected to the lower end of the shaft 3. The lower end of the water supply pipe 7 extends from the wall of the outlet pipe 6 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 lower end of the water supply pipe 7, one tee connected to the outlet of the water pump, and one tee connected to the water supply pipeline.

[0026] Furthermore, inside the filter cartridge on the upper side of the inner cover 10, at least one flushing pipe 12 is arranged parallel to the shaft 3. The flushing pipe 12 is covered with nozzles, which face the inner wall of the filter screen 13. The inlet of the flushing pipe 12 is connected to the pipe wall near the closed end of the water supply pipe 8 and is in communication with it.

[0027] 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, and the water supply pipe 8 is inserted into the closed end of the outlet pipe 8.

[0028] The lower end of shaft 3 can also be directly fixedly connected to the center of the closed end of water outlet pipe 8. In this structure, since impeller 11 needs to rotate, the water supply pipe 8 cannot be connected to flushing pipe 12 due to the obstruction of impeller 11. Therefore, this structure is not the optimal solution, and related drawings are omitted.

[0029] like Figure 1 As shown, the outer circumferential surface of the impeller 11 may not be connected to the inner wall of the inner cover 10. During water pumping, the impeller 11 rotates, while the inner cover 10 and the filter cartridge do not rotate. In this structure, the filter screen 13 can be backwashed through the fixed flushing pipe 12 to remove impurities adhering to it and prevent the filter screen 13 from clogging. However, since the filter cartridge does not rotate, the flushing effect is not good.

[0030] Therefore, the preferred embodiment of this application is that the outer circumferential surface of the impeller 11 is fixedly connected to the inner wall of the inner cover 10. When pumping water, the impeller 11 drives the inner cover 10 to rotate, thereby driving the filter cartridge to rotate. With this structure, the filter screen 13 can be backwashed through the fixed flushing pipe 12 to remove the impurities attached to it and prevent the filter screen 13 from clogging.

[0031] A first bearing 8 is installed between the water outlet pipe 6 and the lower cylinder 1, and a second bearing 2 is installed between the shaft 3 and the upper cylinder 1.

[0032] In practical use, the filter cartridge is placed vertically inside the support 4. The upper end of the shaft 3 is fixed to the upper end of the support 4, and the lower part of the outlet pipe 8 is fixed to the lower end of the support 4. The support 4 is existing technology, which includes symmetrically arranged upper and lower supports. An inner crossbeam is provided inside the upper and lower supports, and a vertical beam connects the upper and lower supports. This application uses the impeller 11 to create a vortex, making it easier for the water flow to concentrate towards the side wall of the inner cover 10. The corresponding inlet pipe 9, which is set between the inner cover 10 and the outlet pipe 6, causes the water flow to concentrate towards the inlet of the inlet pipe 9, which is beneficial for the pump's pumping. Since the inlet pipe 9 is set 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.

[0033] 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 vertical pre-pump filter, comprising a vertically arranged filter cartridge, the filter cartridge comprising upper and lower symmetrical cylindrical bodies, and a filter screen covering the space between the cylindrical bodies, characterized in that: A hollow inner cover with an open top is provided in the lower part of the filter cartridge. The lower end of the inner cover is fixedly connected to the lower cylinder body to form a closed end. A rotatable impeller is provided in the open end of the inner cover. The impeller can drive the inner cover to rotate. A water outlet pipe is fixedly inserted into the center of the lower cylinder body. The upper end of the water outlet pipe is closed and extends into the inner cover. Water inlet pipes are symmetrically distributed between the water outlet pipe and the inner cover. The water inlet pipes are connected to the water outlet pipe. A shaft is inserted through the center of the upper cylinder body. The lower end of the shaft is connected to the closed end of the water outlet pipe.

2. The vortex vertical 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 below the impeller. An opening is provided on the lower wall of the outlet pipe, and the outlet is connected to the opening.

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

4. The vortex vertical pre-pump filter according to claim 3, characterized in that: Inside the filter cartridge on the upper side of the inner cover, at least one flushing pipe is arranged parallel to the axial side. The flushing pipe is covered with nozzles, which face the inner wall of the filter screen. The inlet of the flushing pipe is connected to the water supply pipe.

5. The vortex vertical pre-pump filter according to claim 3, characterized in that: The impeller is rotatably connected to the water supply pipe via bearings, the shaft is fixedly connected to the closed end of the water supply pipe, and the water supply pipe is fixedly connected to the closed end of the outlet pipe.

6. The vortex vertical pre-pump filter according to claim 1, 2, 4, or 5, 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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