A scroll filter device

By employing a conical space and rotating blade structure in the vortex filter device, the problem of low efficiency in existing vortex filters is solved, achieving the effects of rapid discharge of impurities and large liquid outflow.

CN224346083UActive Publication Date: 2026-06-12SHANGHAI AOHU AUTOMATION EQUIP CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SHANGHAI AOHU AUTOMATION EQUIP CO LTD
Filing Date
2025-06-03
Publication Date
2026-06-12

AI Technical Summary

Technical Problem

Existing vortex filters have low filtration efficiency, low liquid outflow from the outlet, slow vortex speed, and the bottom of the vortex cannot effectively reach the outlet when processing liquids with small and few particles such as hydraulic oil.

Method used

Design a vortex filtration device that uses a conical space and a rotating blade structure. The outer diameter of the rotating blade is smaller than that of the conical space. The blades are evenly distributed on the central axis to form a larger and deeper vortex. The vortex speed is increased by using an eccentric liquid inlet, and the rotating blades are set in the conical space to enhance the discharge of impurities.

🎯Benefits of technology

It enables rapid discharge of impurities, increases the liquid pressure and flow rate at the outlet, reduces the impact on the outlet, and the blade material does not damage the filter body, resulting in a compact structure.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to filter technical field discloses a vortex filter device, including filter body, the filter body includes the head and body part of separate setting, the head is connected with body part into an organic whole, the side of head sets up liquid inlet, and the upper end sets up liquid outlet, and the body part presents the taper structure of big down small, and the inside space forms the taper space of big down small, and the body part lower end opening is the outlet for the dirt, and one rotating vane is arranged in the taper space, the outer diameter of rotating vane is less than the big mouth size of taper space and is greater than the small mouth size of taper space, the liquid inlet is eccentric and sets up, and the receiving surface of rotating vane faces the one side of liquid inlet.
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Description

Technical Field

[0001] This utility model relates to the field of filter technology, and in particular to a vortex filter device. Background Technology

[0002] When filtering solid particles or suspended matter in a liquid, a filter must be used. However, for liquids with small amounts of fine impurities, such as hydraulic oil, performing a single filtration operation is time-consuming and expensive. Under less demanding operating conditions, a vortex filter, allowing for continuous hydraulic oil input, eliminates the need for filtration, enabling the output liquid to simultaneously discharge any impurities from the outlet.

[0003] Because existing vortex filters have a large outlet diameter, the volume of liquid flowing out with impurities is large, thus reducing the amount of liquid flowing out from the outlet. Moreover, the vortex varies depending on the flow velocity and angle at the inlet; a slow vortex speed results in a small vortex, and the bottom of the vortex cannot effectively reach the outlet. Utility Model Content

[0004] The purpose of this invention is to solve the above problems by providing a vortex filtration device, which sets up a conical space formed by the vortex and sets a rotating blade in the conical space to make the vortex larger and deeper, effectively remove impurities, and increase the liquid pressure at the outlet.

[0005] The technical solution adopted by this utility model is:

[0006] A vortex filtration device is characterized by comprising a filter body, the filter body comprising a head and a body separately disposed therefrom, the head and the body being connected as one unit, an inlet being disposed on the side of the head and an outlet being disposed at the top, the body having a conical structure that is larger at the top and smaller at the bottom, the internal space forming a conical space that is larger at the top and smaller at the bottom, the lower end of the body having an outlet for wastewater, a rotating blade disposed in the conical space, the outer diameter of the rotating blade being smaller than the size of the larger opening of the conical space but larger than the size of the smaller opening of the conical space, the inlet being eccentrically disposed, and the receiving surface of the rotating blade facing the side of the inlet.

[0007] Furthermore, the rotating blade includes a central shaft and blades, wherein multiple blades are evenly distributed at the upper end of the central shaft, and the lower end of the central shaft extends into the lower middle part of the conical space.

[0008] Furthermore, the blades consist of 3 to 6 pieces, are circular in shape, with one side concave and the concave side facing the liquid inlet.

[0009] Furthermore, the head and body are connected by a threaded seal.

[0010] Furthermore, the head and body are connected and locked via a flange face.

[0011] Furthermore, quick-connectors are provided on the inlet, outlet, and waste outlet for connecting their respective pipes.

[0012] Furthermore, the filter body is made of steel, and the rotating blade is made of polymer material.

[0013] The beneficial effects of this utility model are:

[0014] (1) The increased vortex speed causes impurities to be discharged rapidly towards the outlet;

[0015] (2) The blades increase the vortex inertia, making the vortex rotate faster and reach a higher height, so that impurities are discharged more quickly;

[0016] (3) It has less impact on the pressure at the outlet;

[0017] (4) The blades are made of plastic or other materials and will not affect the filter body. Attached Figure Description

[0018] Appendix Figure 1 This is a schematic diagram of the structure of this utility model;

[0019] Appendix Figure 2 This is a schematic diagram of the structure of this utility model with the head removed;

[0020] Appendix Figure 3 This is a schematic diagram of the blade structure;

[0021] Appendix Figure 4 This is a cross-sectional schematic diagram of the present invention.

[0022] The labels in the attached diagram are as follows:

[0023] 1. Filter element; 2. Head;

[0024] 3. Body; 4. Liquid inlet;

[0025] 5. Liquid outlet; 6. Conical space;

[0026] 7. Wastewater outlet; 8. Rotating blade;

[0027] 9. Central shaft; 10. Blades;

[0028] 11. Concave surface; 12. Extension. Detailed Implementation

[0029] The specific embodiments of the vortex filtration device of this utility model will be described in detail below with reference to the accompanying drawings.

[0030] See appendix Figure 1The vortex filter device of this patent includes a filter body 1 comprising a separately disposed head 2 and a body 3, which are connected as a single unit, forming an internal space in which a vortex is formed. The head 2 and the body 3 can be connected by a threaded seal or by a flange and bolts. For filter bodies 1 with smaller diameters, threaded connections are suitable, while for filter bodies 1 with larger diameters, flange connections are suitable.

[0031] The filter body 1 has an inlet 4 on the side of its head 2 and an outlet 5 at its top. The inlet 4 is eccentrically positioned, so that the liquid entering through the inlet 4 forms a rotating liquid flow around its axis, thereby creating a vortex. The outlet 5 at the top is located in the middle position, and the liquid rising from the vortex flows out through the outlet 5.

[0032] See appendix Figure 2 The filter body 1 has a cone-shaped structure with a larger top and a smaller bottom, forming a cone-shaped space 6 inside. The opening at the lower end of the body 3 is the sludge outlet 7. The shape of the vortex matches the cone-shaped space 6, making the vortex stable after it is formed. The impurities gather towards the sludge outlet 7, while the clean liquid flows upward to the liquid outlet 5.

[0033] See appendix Figure 3 A rotating blade 8 is disposed in the conical space 6. The outer diameter of the rotating blade 8 is smaller than the large opening size of the conical space 6 but larger than the small opening size. The rotating blade 8 includes a central shaft 9 and blades 10. Multiple blades 10 are evenly distributed at the upper end of the central shaft 9, and the lower end of the central shaft 9 extends into the lower middle part of the conical space 6. The blades 10 at the upper end of the rotating blade 8 are supported by the conical space 6. When the vortex is formed, the rotating blade 8 rotates without contacting the perimeter of the conical space 6.

[0034] The rotating blade 8 has 3 to 6 blades 10, which are circular in shape and have one concave side facing the inlet 4. The pressurized liquid entering the inlet 4 is eccentrically positioned directly on the blade 10 with the concave side 11, causing the rotating blade 8 to rotate. This drives the liquid to rotate rapidly, forming a vortex.

[0035] See appendix Figure 4 The outlet 5 can extend downwards to the conical space 6 via the downward extension 12, so that the liquid can enter quickly.

[0036] The filter body 1 is made of steel, and the rotating blade 8 is made of polymer plastic or rubber. When the rotating blade 8 rotates, it will not have any impact on the filter body 1.

[0037] When the vortex filter device of this patent is working, quick connectors are used to connect the respective pipes to the liquid inlet 4, liquid outlet 5, and waste outlet 7. The pipe of the liquid inlet 4 is connected to the pressure oil, the liquid outlet 5 is connected to the pressure cylinder or other equipment that uses the pressure oil, and the waste outlet 7 is connected to the sedimentation tank to discharge the impurity oil.

[0038] When pressurized oil is input through inlet 4, the pressure rushes towards the rotating blade 8. The rotating blade 8 rotates with the liquid flow, causing the pressurized oil in the conical space 6 to form a vortex. The vortex carries slightly heavier impurities to the bottom of the vortex, which flows out from the outlet 7, while the top of the vortex flows upward to the outlet 5. While achieving the filtration function, the pressure at outlet 5 decreases, resulting in fast liquid discharge. The entire filter body 1 has a small volume but a large liquid discharge rate.

[0039] The above are merely preferred embodiments of this utility model. It should be noted that those skilled in the art can make several improvements and modifications without departing from the principle of this utility model, and these improvements and modifications should also be considered within the scope of protection of this utility model.

Claims

1. A vortex filtration device, characterized in that: The filter includes a filter body comprising a separate head and a body, the head and body being connected as one unit. The head has an inlet on its side and an outlet at its top. The body has a conical structure that is larger at the top and smaller at the bottom, forming a conical space inside. The bottom of the body has an outlet for wastewater. A rotating blade is provided in the conical space. The outer diameter of the rotating blade is smaller than the size of the larger opening of the conical space but larger than the size of the smaller opening. The inlet is eccentrically positioned, and the receiving surface of the rotating blade faces the inlet.

2. The vortex filter device according to claim 1, characterized in that: The rotating blade includes a central shaft and blades. Multiple blades are evenly distributed at the upper end of the central shaft, and the lower end of the central shaft extends into the lower middle part of the conical space.

3. The vortex filter device according to claim 2, characterized in that: The blades consist of 3 to 6 pieces, are circular in shape, and have one concave side facing the liquid inlet.

4. A vortex filtration device according to any one of claims 1 to 3, characterized in that: The head and body are connected by a threaded seal.

5. A vortex filtration device according to any one of claims 1 to 3, characterized in that: The head and body are connected and locked via a flange face.

6. A vortex filtration device according to any one of claims 1 to 3, characterized in that: Quick-connectors are provided on the inlet, outlet, and waste outlet for connecting their respective pipes.

7. A vortex filtration device according to any one of claims 1 to 3, characterized in that: The filter body is made of steel, and the rotating blades are made of polymer materials.