Full-automatic net type filtering dirt suction device

Abstract

The utility model discloses a full-automatic net type filtering sewage suction device, relates to the technical field of filtering equipment, and mainly aims to provide the full-automatic net type filtering sewage suction device capable of improving the suction force of the sewage suction device. According to the main technical scheme, the full-automatic net type filtering dirt suction device comprises a pipe body, and a dirt discharge hole is formed in the side face of one end of the pipe body; the dirt suction component comprises a first Venturi tube and a branch pipeline, one end of the first Venturi tube is connected to the side face of the tube body, and one end of the branch pipeline is connected to the middle of the first Venturi tube. The sewage filter is mainly used for filtering sewage.

Description

Technical Field

[0001] The utility model relates to the technical field of filtering equipment, in particular to a full-automatic mesh filter and dirt suction device. Background Art

[0002] A mesh filter is a precision device that directly intercepts impurities in liquids such as water and oil by using a filter mesh, removes suspended solids and particulate matter in water bodies and oil bodies, reduces turbidity, purifies water quality and oil quality, reduces the generation of system dirt, bacteria, algae, rust, etc., so as to purify liquids such as water quality and oil quality and protect the normal operation of other equipment in the system.

[0003] The existing mesh filter mainly includes a housing, a coarse filter mesh, a fine filter mesh, a dirt suction device, a differential pressure controller, a sewage discharge cavity and a sewage discharge valve. An inlet is provided on the housing, the coarse filter mesh is arranged at the inlet, the fine filter mesh is arranged at one end of the dirt suction device, the dirt suction device is arranged inside the housing, and the dirt suction device can rotate around its axis. The sewage discharge valve is arranged at one end of the dirt suction device. Sewage flows through the coarse filter mesh and the fine filter mesh for filtration. Impurities will continuously accumulate on the fine filter mesh, resulting in a pressure difference between the inner and outer surfaces of the fine filter mesh. When the pressure difference continuously increases and reaches the preset value of the differential pressure controller, the sewage discharge valve opens, causing the pressure in the sewage discharge cavity to drop rapidly, thereby generating a suction force at the dirt suction nozzle of the dirt suction device to suck the suspended matter accumulated on the inner surface of the fine filter mesh into the dirt suction device. However, since the suction force of the dirt suction device can only be controlled according to the internal and external pressure difference, it often leads to insufficient suction force of the dirt suction device, resulting in blockage of the dirt suction device. Content of the Utility Model

[0004] In view of this, an embodiment of the utility model provides a full-automatic mesh filter and dirt suction device, and the main purpose is to provide a full-automatic mesh filter and dirt suction device that can improve the suction force of the dirt suction device.

[0005] To achieve the above object, the utility model mainly provides the following technical solutions:

[0006] An embodiment of the utility model provides a full-automatic mesh filter and dirt suction device, including:

[0007] A pipe body, with a sewage discharge hole provided on the side surface of one end of the pipe body;

[0008] A dirt suction component, the dirt suction component includes a first Venturi tube and a sub-pipeline, one end of the first Venturi tube is connected to the side surface of the pipe body, and one end of the sub-pipeline is connected to the middle part of the first Venturi tube.

[0009] Further, the number of the dirt suction components is multiple, and the multiple dirt suction components are spirally arranged around the side surface of the pipe body.

[0010] Further, the branch pipe is an arc pipe, and the other end of the branch pipe has the same opening direction as the other end of the first Venturi tube.

[0011] Further, two adjacent sewage suction components are a first sewage suction component and a second sewage suction component, and the first sewage suction component and the second sewage suction component are arranged perpendicular to each other.

[0012] Further, the diameter of the branch pipe is smaller than the diameter of one end of the first Venturi tube.

[0013] Further, the axes of the branch pipe, the first Venturi tube, and the pipe body are located in the same plane.

[0014] Further, the pipe body includes a plugging pipe, a sewage discharge pipe, and a Venturi assembly. The Venturi assembly includes a plurality of second Venturi tubes, and the plurality of second Venturi tubes are sequentially connected in series. The plugging pipe and the sewage discharge pipe are respectively connected to both ends of the Venturi assembly, and the sewage discharge hole is arranged on the sewage discharge pipe.

[0015] Further, one end of the first Venturi tube is connected to the middle part of the second Venturi tube.

[0016] Compared with the prior art, the utility model has the following technical effects:

[0017] In the technical solution provided by the embodiment of the present utility model, the function of the pipe body is to discharge impurities, and a sewage discharge hole is arranged on the side surface of one end of the pipe body; the function of the sewage suction component is to suck water and impurities into the pipe body. The sewage suction component includes a first Venturi tube and a sub-pipeline. One end of the first Venturi tube is connected to the side surface of the pipe body, and one end of the sub-pipeline is connected to the middle part of the first Venturi tube. Compared with the prior art, the mesh filter mainly includes a shell, a coarse filter screen, a fine filter screen, a sewage suction device, a differential pressure controller, a sewage discharge cavity and a sewage discharge valve. An inlet is arranged on the shell, the coarse filter screen is arranged at the inlet, the fine filter screen is arranged at one end of the sewage suction device, the sewage suction device is arranged inside the shell, and the sewage suction device can rotate around its axis. The sewage discharge valve is arranged at one end of the sewage suction device. Sewage flows through the coarse filter screen and the fine filter screen for filtration, and impurities will continuously accumulate on the fine filter screen, causing a pressure difference between the inner and outer surfaces of the fine filter screen. When the pressure difference continuously increases and reaches the preset value of the differential pressure controller, the sewage discharge valve opens, causing the pressure in the sewage discharge cavity to drop rapidly, thereby generating a suction force at the sewage suction nozzle of the sewage suction device, sucking the suspended matter accumulated on the inner surface of the fine filter screen into the sewage suction device. However, since the suction force of the sewage suction device can only be controlled according to the internal and external pressure difference, it often results in insufficient suction force of the sewage suction device, causing blockage of the sewage suction device. In this technical solution, by arranging a sewage suction component on the side surface of the pipe body, one end of the first Venturi tube is connected to the pipe body, and the sub-pipeline is connected to the middle part of the first Venturi tube. When the liquid flows in the first Venturi tube, due to the continuity equation, at the narrowest part of the pipeline, the speed reaches the maximum value and the static pressure reaches the minimum value. The speed of the liquid increases due to the change in the cross-sectional area of the flowing stream. The entire flowing stream has to experience the process of pipeline narrowing at the same time, so the pressure also decreases at the same time, thereby generating a pressure difference. This pressure difference is used to measure or provide an external suction force to the fluid, causing a strong suction force to be generated at the other end of the first Venturi tube and in the sub-pipeline, enabling impurities to quickly enter the pipe body, thereby increasing the suction force of the sewage suction component and further achieving the technical effect of improving the suction force of the sewage suction device. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 FIG. 6 is a schematic structural diagram of the first fully automatic mesh filter and sewage suction device provided by the embodiment of the present utility model;

[0019] Figure 2 FIG. 10 is a schematic structural diagram of the second fully automatic mesh filter and sewage suction device provided by the embodiment of the present utility model;

[0020] Figure 3 FIG. 14 is a schematic structural diagram of the third fully automatic mesh filter and sewage suction device provided by the embodiment of the present utility model. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0021] The present utility model will be further described in detail below with reference to the drawings and embodiments.

[0022] As shown in Figure 1 the figure, an embodiment of the present utility model provides a fully automatic mesh filter and dirt suction device, including:

[0023] a pipe body 1, with a sewage discharge hole 11 provided on the side surface of one end of the pipe body 1;

[0024] a dirt suction component, which includes a first Venturi tube 21 and a sub-pipe 22. One end of the first Venturi tube 21 is connected to the side surface of the pipe body 1, and one end of the sub-pipe 22 is connected to the middle part of the first Venturi tube 21.

[0025] In the technical solution provided by the embodiment of the present utility model, the function of the pipe body 1 is to discharge impurities, and the sewage discharge hole 11 is provided on the side surface of one end of the pipe body 1; the function of the dirt suction component is to suck water and impurities into the pipe body 1. The dirt suction component includes a first Venturi tube 21 and a sub-pipe 22. One end of the first Venturi tube 21 is connected to the side surface of the pipe body 1, and one end of the sub-pipe 22 is connected to the middle part of the first Venturi tube 21. Compared with the prior art, the mesh filter mainly includes a shell, a coarse filter screen, a fine filter screen, a dirt suction device, a differential pressure controller, a sewage discharge cavity and a sewage discharge valve. An inlet is provided on the shell, the coarse filter screen is arranged at the inlet, the fine filter screen is arranged at one end of the dirt suction device, the dirt suction device is arranged inside the shell, and the dirt suction device can rotate around its axis. The sewage discharge valve is arranged at one end of the dirt suction device. Sewage flows through the coarse filter screen and the fine filter screen for filtration. Impurities will continuously accumulate on the fine filter screen, causing a pressure difference between the inner and outer surfaces of the fine filter screen. When the pressure difference continuously increases and reaches the preset value of the differential pressure controller, the sewage discharge valve opens, causing the pressure in the sewage discharge cavity to drop rapidly, thereby generating a suction force at the dirt suction nozzle of the dirt suction device to suck the suspended matter accumulated on the inner surface of the fine filter screen into the dirt suction device. However, since the suction force of the dirt suction device can only be controlled according to the internal and external pressure difference, it often leads to insufficient suction force of the dirt suction device, resulting in blockage of the dirt suction device. In this technical solution, by arranging a dirt suction component on the side surface of the pipe body 1, one end of the first Venturi tube 21 is connected to the pipe body 1, and the sub-pipe 22 is connected to the middle part of the first Venturi tube 21. When the liquid flows in the first Venturi tube 21, due to the continuity equation, at the narrowest part of the pipe, the speed reaches the maximum value and the static pressure reaches the minimum value. The speed of the liquid increases due to the change in the cross-sectional area of the flowing stream. The entire flowing stream has to experience the process of pipe narrowing at the same time, so the pressure also decreases at the same time, thereby generating a pressure difference. This pressure difference is used to measure or provide an external suction force to the fluid, causing a strong suction force to be generated at the other end of the first Venturi tube 21 and inside the sub-pipe 22, enabling impurities to quickly enter the pipe body 1, thereby increasing the suction force of the dirt suction component and further achieving the technical effect of improving the suction force of the dirt suction device.

[0026] The function of the above-mentioned pipe body 1 is to discharge impurities. A sewage discharge hole 11 is provided on the side of one end of the pipe body 1. The pipe body 1 adopts a straight pipe. A sewage discharge hole 11 is provided on the side of one end of the pipe body 1, and the other end of the pipe body 1 is in a closed state. During use, the pipe body 1 rotates along its axis; the function of the sewage suction component is to suck water and impurities into the pipe body 1. The sewage suction component includes a first Venturi tube 21 and a branch pipe 22. One end of the first Venturi tube 21 is connected to the side of the pipe body 1, and one end of the branch pipe 22 is connected to the middle of the first Venturi tube 21. The number of sewage suction components is multiple, and moreover, multiple sewage suction components are spirally arranged around the side of the pipe body 1. One end of the first Venturi tube 21 is fixedly connected to the pipe body 1, and moreover, the first Venturi tube 21 communicates with the pipe body 1. The branch pipe 22 is an arc-shaped pipe. The other end of the branch pipe 22 has the same opening direction as the other end of the first Venturi tube 21, and moreover, the axes of the branch pipe 22, the first Venturi tube 21, and the pipe body 1 are located in the same plane, which can increase the sewage suction area. Specifically, the branch pipe 22 is a quarter-circular pipe, and moreover, the diameter of the branch pipe 22 is smaller than the diameter of one end of the first Venturi tube 21. When the sewage discharge valve is opened, the pressure inside the sewage suction device is greater than the atmospheric pressure, and the water flow will flow from high pressure to low pressure. During the flowing process of the water flow, a strong suction force is generated inside the first Venturi tube 21, so that the impurities on the filter screen are washed away, and moreover, the impurities can quickly enter the pipe body 1, thereby increasing the suction force of the sewage suction component, and further achieving the technical effect of improving the suction force of the sewage suction device.

[0027] Further, two adjacent sewage suction components are a first sewage suction component 23 and a second sewage suction component 24, and the first sewage suction component 23 and the second sewage suction component 24 are arranged perpendicular to each other. In this embodiment, the sewage suction components are further defined. The first sewage suction component 23 is arranged on the left side of the second sewage suction component 24, and moreover, the first sewage suction component 23 is perpendicular to the second sewage suction component 24. The right side of the second sewage suction component 24 is a third sewage suction component, and the third sewage suction component is parallel to the first sewage suction component 23 but in the opposite direction. By analogy, the positions of multiple sewage suction components are set. When the pipe body 1 rotates, multiple sewage suction components can suck impurities in different directions, which can not only improve the sewage suction efficiency, but also cover all areas inside the filter, thereby achieving the technical effect of quickly sucking sewage.

[0028] Further, as Figure 2As shown, the pipe body 1 includes a plugging pipe 12, a sewage discharge pipe 13 and a Venturi assembly. The Venturi assembly includes a plurality of second Venturi pipes 14, and the plurality of second Venturi pipes 14 are sequentially connected in order. The plugging pipe 12 and the sewage discharge pipe 13 are respectively connected to both ends of the Venturi assembly, and the sewage discharge hole 11 is provided on the sewage discharge pipe 13. In this embodiment, the pipe body 1 is further defined. The pipe body 1 is composed of three parts. The plugging pipe 12 is arranged at one end of the pipe body 1, the sewage discharge pipe 13 is arranged at the other end of the pipe body 1, the sewage discharge hole 11 is provided on the sewage discharge pipe 13, and the Venturi assembly is composed of a plurality of second Venturi pipes 14. The plurality of second Venturi pipes 14 are sequentially connected end to end. Moreover, the Venturi assembly is arranged between the plugging pipe 12 and the sewage discharge pipe 13. One end of the first Venturi pipe 21 is connected to the middle part of the second Venturi pipe 14. When sewage and impurities enter the second Venturi pipe 14 from the first Venturi pipe 21, a greater suction force will be provided, so that the impurities are quickly sucked in and discharged through the sewage discharge pipe 13, thereby achieving the technical effect of improving the sewage suction efficiency.

[0029] As Figure 3 As shown, when the pipe body 1 is composed of a plugging pipe 12, a sewage discharge pipe 13 and a Venturi assembly, the sewage suction component can also be a straight pipe. A plurality of straight pipes are arranged around the middle position of each second Venturi pipe 14. When sewage and impurities enter the second Venturi pipe 14 from the straight pipe, the second Venturi pipe 14 will provide a greater suction force, so that the impurities are quickly sucked in and discharged through the sewage discharge pipe 13, thereby achieving the technical effect of improving the sewage suction efficiency.

[0030] The above is only the specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention can easily think of changes or substitutions, which should all be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims

1. A fully automatic net-type filter suction device, characterized in that: include: A pipe body, wherein a drain hole is arranged on a side surface of one end of the pipe body; The sewage suction component comprises a first venturi tube and a branch pipe, one end of the first venturi tube is connected to the side surface of the tube body, and one end of the branch pipe is connected to the middle part of the first venturi tube.

2. A fully automatic net-type filter suction device according to claim 1, characterized in that: There are multiple dirt-absorbing components, and the multiple dirt-absorbing components are spirally arranged on the side of the tube body.

3. A fully automatic net-type filter suction device according to claim 2, characterized in that: The branch pipe is an arc pipe, and the other end of the branch pipe has the same opening direction as the other end of the first venturi tube.

4. The fully automatic net-type filter suction device according to claim 3 is characterized in that: The two adjacent dirt-absorbing components are a first dirt-absorbing component and a second dirt-absorbing component, and the first dirt-absorbing component and the second dirt-absorbing component are arranged perpendicular to each other.

5. The fully automatic net-type filter suction device according to claim 4, characterized in that: The diameter of the branch pipe is smaller than the diameter of one end of the first venturi tube.

6. The fully automatic net-type filter suction device according to claim 4, characterized in that: The axes of the branch pipe, the first venturi tube and the pipe body are located in the same plane.

7. A fully automatic net-type filter suction device according to any one of claims 2 to 5, characterized in that: The pipe body includes a plugging pipe, a drain pipe and a Venturi assembly. The Venturi assembly includes a plurality of second Venturi tubes, which are connected in sequence. The plugging pipe and the drain pipe are respectively connected to the two ends of the Venturi assembly, and the drain hole is arranged on the drain pipe.

8. The fully automatic net-type filter suction device according to claim 7, characterized in that: One end of the first venturi tube is connected to the middle portion of the second venturi tube.

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