Raw water pretreatment device with multiple filtering structures

Abstract

The utility model discloses a raw water pretreatment device with multiple filtering structures, which belongs to the technical field of multiple filtering and comprises a device body and a plurality of filtering components. The filtering assembly comprises a filtering cylinder and a filtering conical net; according to the invention, a plurality of conical filtering nets are arranged, a traditional plane structure of each filtering net is changed into a conical three-dimensional filtering structure, and an annular collecting groove is formed between the outer side of each filtering conical net and the filtering cylinder, so that impurities can naturally slide down along the conical net surface and enter the collecting grooves after being blocked, and cannot be attached to the surface layer of the filtering surface for a long time; the blocking phenomenon caused by the fact that impurities block the surface of the filter screen in the prior art is avoided, and the water supply flow speed cannot be reduced.

Description

Technical Field

[0001] This utility model relates to the field of multi-filtration technology, specifically to a raw water pretreatment device with a multi-filtration structure. Background Technology

[0002] With the continuous growth in demand for industrial production, agricultural irrigation, and urban water supply, raw water generally contains various impurities such as silt, suspended solids, iron and manganese ions, organic debris, algae, and flocculent matter. Before entering the fine treatment process at water plants, water purification equipment, or membrane treatment systems, raw water usually needs to be pre-treated to reduce the load on downstream equipment, extend equipment lifespan, and improve overall treatment efficiency.

[0003] CN211799095U discloses a raw water pretreatment device with a multi-layer filtration structure, including a connecting pipe, a filter box, a slot, a carrier plate, a filter screen, and a water direction regulating valve; it can be connected to the raw water supply pipeline, and pretreatment of raw water through multiple filter screens can effectively improve the raw water pretreatment effect. The filter screens can be disassembled individually for easy daily cleaning and replacement.

[0004] The aforementioned prior art has the following drawbacks:

[0005] This device uses a flat filter screen with a relatively fixed filtration surface, and the water flows through the filter screen in a single direction. When the raw water contains a large amount of suspended solids or silt, the impurities will accumulate on the filter screen surface, causing blockage and resulting in a rapid reduction in the water flow area, which in turn leads to a decrease in the water supply flow rate. Utility Model Content

[0006] The purpose of this invention is to provide a raw water pretreatment device with a multi-layer filtration structure, which solves the problems in the prior art where the filter surface of the filter screen is fixed and the water flow direction is unidirectional. When the raw water contains a large amount of suspended solids or silt, the impurities are easy to accumulate on the surface of the filter screen and form a blockage, resulting in a rapid reduction in the water flow area of ​​the filter screen and a decrease in the water supply velocity.

[0007] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0008] A raw water pretreatment device with a multi-stage filtration structure includes:

[0009] The device body has a channel running through both ends inside; the device body has several filter slots connected to the channel.

[0010] Multiple filter components are detachably installed in the filter tank for filtering impurities in the raw water;

[0011] The filter assembly includes a filter cylinder and a filter cone; one end of the filter cylinder has an inlet hole and the other end has an outlet hole, and the diameter of the inlet hole is larger than that of the outlet hole; the filter cone is coaxially disposed at the outlet hole; the filter cone and the filter cylinder form an annular collection groove for collecting blocked impurities.

[0012] A further technical solution is that the filter assembly further includes a collecting inner ring; the collecting inner ring is coaxially and detachably disposed at the impurity outlet; the filter cone is coaxially fixed to the end of the collecting inner ring opposite to the impurity outlet.

[0013] A further technical solution is that a driven gear is rotatably arranged inside the filter tank; multiple retaining teeth are provided on the periphery of the filter cylinder and mesh with the driven gear; a driving component is provided on the main body of the device; the driving component is used to drive the filter cylinder to rotate.

[0014] A further technical solution is that the device body is detachably equipped with a cover plate for sealing the filter tank; a positioning gear is rotatably provided on the cover plate; the positioning gear is located inside the filter tank and meshes with the locking teeth on the filter cylinder; the driving member is used to drive the positioning gear to rotate, thereby driving the filter cylinder to rotate.

[0015] A further technical solution is that the driving component includes a drive motor and a drive gear; the drive motor is mounted on the cover plate; the drive gear is located at the power end of the drive motor and meshes with the positioning gear.

[0016] A further technical solution is that the two ends of the channel are provided with connecting pipes; the connecting pipes are provided with manual valves.

[0017] Compared with the prior art, the beneficial effects of this utility model are:

[0018] This application sets up multiple filter cones and changes the filter structure from the traditional planar structure to a cone-shaped three-dimensional filter structure. An annular collection groove is formed between the outer side of the filter cone and the filter cylinder. This allows impurities to slide naturally down the cone surface and into the collection groove after being blocked, instead of adhering to the filter surface for a long time. This avoids the blockage caused by impurities clogging the filter surface in the prior art and does not reduce the flow rate of the water supply.

[0019] Furthermore, the filter cartridge can actively rotate under the action of the drive component, creating a dynamic filtration state on the surface of the filter cone. The impact surface of the water flow on the filter cone is constantly changing, thus preventing impurities from continuously accumulating in a fixed position. The rotational motion further promotes the shedding of attached impurities and their entry into the collection tank, achieving a self-cleaning effect and significantly extending the continuous working time of the filter. Attached Figure Description

[0020] To make the objectives, technical solutions, and beneficial effects of this utility model clearer, the following drawings are provided for illustration:

[0021] Figure 1 This is a three-dimensional drawing of the present invention.

[0022] Figure 2 This is a three-dimensional view of the main body of the device of this utility model.

[0023] Figure 3 This is a three-dimensional view of the structure inside the filter tank of this utility model.

[0024] Figure 4 This is a three-dimensional view of the filter cone mesh of this utility model.

[0025] Figure 5 This is a three-dimensional view of the filter cartridge of this utility model.

[0026] Icons: 1. Device body; 2. Filter assembly; 3. Channel; 4. Filter tank; 5. Filter cylinder; 6. Filter cone; 7. Inlet hole; 8. Outlet hole; 9. Inner collection ring; 10. Driven gear; 11. Cover plate; 12. Extension bar; 13. Positioning gear; 14. Extension groove; 15. Drive motor; 16. Drive port; 17. Connecting pipe; 18. Manual valve; 19. Detailed Implementation

[0027] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0028] Example:

[0029] like Figures 1-5 As shown, this utility model provides a raw water pretreatment device with a multi-layer filtration structure, including a device body 1 and multiple filter components 2 (three are used as an example in this embodiment); the device body 1 has a channel 3 that runs through both ends; the device body 1 has several filter tanks 4 that connect to the channel 3; the filter components 2 are detachably installed in the filter tanks 4 and are used to filter impurities in the raw water; wherein, each filter component 2 includes a filter cylinder 5 and a filter cone 6; one end of the filter cylinder 5 has an inlet hole 7 and the other end has an outlet hole 8, and the diameter of the inlet hole 7 is larger than that of the outlet hole 8; the filter cone 6 is coaxially arranged at the outlet hole 8; the filter cone 6 and the filter cylinder 5 form an annular collection groove for collecting blocked impurities.

[0030] The principles and beneficial effects of the above technical solution:

[0031] This application sets up multiple filter cones 6 and changes the filter structure from a traditional planar structure to a cone-shaped three-dimensional filter structure. An annular collection groove is formed between the outer side of the filter cone 6 and the filter cylinder 5, so that impurities can slide naturally down the cone-shaped mesh surface and enter the collection groove after being blocked, instead of being attached to the filter surface for a long time. This avoids the blockage phenomenon caused by impurities clogging the filter surface in the prior art and does not reduce the flow rate of the water supply.

[0032] In this embodiment, the filter assembly 2 further includes a collecting inner ring 9; the collecting inner ring 9 is coaxially threaded to the impurity outlet hole 8; and the filter cone 6 is coaxially fixed to the end of the collecting inner ring 9 opposite to the impurity outlet hole 8.

[0033] The principles and beneficial effects of the above technical solution:

[0034] By setting a detachable inner collection ring 9 at the impurity outlet 8, the installation position of the filter cone 6 is moved back, thereby increasing the axial distance between the filter cone 6 and the filter cylinder 5, which effectively increases the depth and capacity of the collection tank. At the same time, the detachable setting of the inner collection ring 9 makes it easy to clean the impurities collected in the collection tank after the filter assembly is removed.

[0035] In this embodiment, a driven gear 10 is rotatably arranged inside the filter tank 4; multiple teeth are provided on the periphery of the filter cylinder 5 and mesh with the driven gear 10; a driving component is provided on the device body 1; the driving component is used to drive the filter cylinder 5 to rotate.

[0036] The principles and beneficial effects of the above technical solution:

[0037] The drive unit rotates the filter cylinder 5, which changes the water-facing surface of the filter cone 6, preventing a large amount of impurities from accumulating in a fixed area. At the same time, the relative flow generated by the rotation causes the impurities attached to the filter cone 6 to be washed away by the water flow. After the impurities are peeled off, they enter the collection tank under the guidance of the cone-shaped filter surface, realizing automatic cleaning and circulation.

[0038] In this embodiment, a cover plate 11 for sealing the filter tank 4 is detachably connected to the device body 1 by bolts; the cover plate 11 is provided with an insertion strip 12; a positioning gear 13 is rotatably provided between the opposite side walls of the two insertion strips 12; an insertion groove 14 for the insertion strips 12 to engage is opened vertically on the opposite side walls of the filter tank 4; the positioning gear 13 is located in the filter tank 4 and meshes with the locking teeth on the filter cylinder 5; the driving member is used to drive the positioning gear 13 to rotate, so as to drive the filter cylinder 5 to rotate.

[0039] The principles and beneficial effects of the above technical solution:

[0040] By providing an insertion strip 12 on the cover plate 11, the positioning gear 13 is securely inserted into the filter tank 4 and engages with the teeth of the filter cylinder 5; the cover plate 11 is detachably connected, which facilitates the removal and cleaning of the filter assembly 2; at the same time, the cooperation between the insertion strip 12 and the insertion groove 14 can provide stable support for the rotation of the positioning gear 13.

[0041] In this embodiment, the driving component includes a drive motor 15 and a drive gear 16; a drive port 17 is opened on the cover plate 11; the drive motor 15 is mounted on the drive port 17; the drive gear 16 is located at the power end of the drive motor 15 and meshes with the positioning gear 13; the drive motor 15 is a servo motor.

[0042] The principles and beneficial effects of the above technical solution:

[0043] The drive motor 15 is fixed at the drive port 17 of the cover plate 11. The drive gear 16 at its power end meshes with the positioning gear 13, and the power is transmitted to the filter cartridge 5 through gear transmission.

[0044] In this embodiment, the two ends of the channel 3 are provided with connecting pipes 18; the connecting pipes 18 are provided with internal threads; and the connecting pipes 18 are provided with manual valves 19.

[0045] The principles and beneficial effects of the above technical solution:

[0046] Connect the external water supply pipe and water outlet pipe to the connecting pipe 18 at both ends via internal threads, then open the manual valve 19 to start the raw water filtration. The flow rate can be controlled by the manual valve 19.

[0047] Although the present invention has been described herein with reference to several illustrative embodiments, it should be understood that many other modifications and implementations can be devised by those skilled in the art, which will fall within the scope and spirit of the principles disclosed herein. More specifically, various variations and modifications can be made to the components and / or layout of the subject matter combination within the scope of the disclosure, drawings, and claims. Besides variations and modifications to the components and / or layout, other uses will be apparent to those skilled in the art.

Claims

1. A raw water pretreatment device with a multi-stage filtration structure, characterized in that, The utility model relates to a kind of raw water pretreatment devices with multiple filtration structures comprising: Device body, which is internally provided with a channel through both ends;A plurality of filter grooves are formed in the device body and communicate with the channel; A plurality of filter assemblies are detachably installed in the filter grooves for filtering impurities in raw water; The filter assembly includes a filter cartridge and a filter cone screen. An impurity inlet hole is formed at one end of the filter cartridge, and an impurity outlet hole is formed at the other end. The diameter of the impurity inlet hole is larger than that of the impurity outlet hole. The filter cone screen is coaxially arranged at the impurity outlet hole. An annular collection groove is formed between the filter cone screen and the filter cartridge for collecting blocked impurities.

2. The raw water pretreatment device with multiple filtration structures according to claim 1, characterized in that: The filter assembly further includes a collection inner ring. The collection inner ring is coaxially and detachably arranged at the impurity outlet hole. The filter cone screen is coaxially fixed at one end of the collection inner ring away from the impurity outlet hole.

3. The raw water pretreatment device with multiple filtration structures according to claim 1, characterized in that: A driven gear is rotatably arranged in the filter groove. A plurality of clamping teeth are arranged on the circumferential side of the filter cartridge and engage with the driven gear. A driving member is arranged on the device body. The driving member is used to drive the rotation of the filter cartridge.

4. The raw water pretreatment device with multiple filtration structures according to claim 3, characterized in that: A cover plate is detachably installed on the device body to close the filter groove. A positioning gear is rotatably arranged on the cover plate. The positioning gear is located in the filter groove and engages with the clamping teeth on the filter cartridge. The driving member is used to drive the rotation of the positioning gear to drive the rotation of the filter cartridge.

5. The raw water pretreatment device with multiple filtration structures according to claim 4, characterized in that: The driving member includes a driving motor and a driving gear. The driving motor is installed on the cover plate. The driving gear is arranged at the power end of the driving motor and engages with the positioning gear.

6. The raw water pretreatment device with multiple filtration structures according to claim 1, characterized in that: Both ends of the channel are provided with connecting pipes. Manual valves are arranged on the connecting pipes.

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