Water supply pipeline filtering water supply self-cleaning device

Abstract

The application discloses a water supply pipeline filtering and self-cleaning device, and belongs to the technical field of pipeline filtering and cleaning. The device comprises a tank body, the inside of the tank body is divided into a primary filtering area, a fine filtering area and a water outlet area through two fixed partition plates. A through opening is arranged on one side of the fixed partition plate, and a sealing plate driven by a sealing control unit is arranged on the through opening. A plurality of movable partition plates and deformable filtering units interposed between the movable partition plates are arranged in the fine filtering area, and the gaps in the movable partition plates make the water flow in a continuous S shape. The movable partition plates are driven to move through a cleaning driving unit, and the filtering units are repeatedly compressed to realize self-cleaning. The application integrates multiple filtering levels in a single tank body, has a compact structure, can complete efficient and deep cleaning through a pure physical and mechanical mode, effectively avoids secondary pollution, and significantly improves filtering efficiency and maintenance convenience.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of pipeline filtration and cleaning, and particularly relates to a water supply pipeline filtration and water supply self-cleaning device. BACKGROUND

[0002] In city water supply, industrial circulating water and other systems, the pipeline filtration device is a key link for guaranteeing water quality and protecting the rear-end equipment. The existing pipeline filtration technology mainly relies on fixed filter screens, filter cartridges or filter materials for impurity interception, but in long-term operation, it generally faces two core problems: the contradiction between filtration precision and self-cleaning capacity, and the interference of the cleaning process on the continuous operation of the system.

[0003] Firstly, in terms of filtration precision, a single filtration unit often cannot balance high impurity capacity and high filtration precision. To solve this problem, a multi-stage series filtration system appears, for example, a plurality of functional tanks (such as primary filtration tanks, precision filtration tanks, adsorption tanks, etc.) arranged side by side to process water flow in turn. Although this kind of system can realize staged filtration, it has a complex structure, a large floor area and a long pipeline, resulting in high equipment cost and large water flow resistance loss. More importantly, the filtration media (such as filter screens, filter cartridges, activated carbon, etc.) in these tanks are mostly fixed structures, and their cleaning methods have significant limitations.

[0004] Secondly, in terms of self-cleaning, the mainstream technology mainly adopts reverse water flow flushing (backwashing) or introduces external chemical agents, high-temperature steam and the like. The backwashing technology has a certain effect on surface-attached pollutants, but it is not thorough for particles deeply embedded in the pores of the filtration media. The use of chemical agents or high-temperature steam for killing microorganisms may cause chemical residues to pollute the water quality. In addition, the boiler, pump, valve and complex distribution pipeline required for steam cleaning further increase the complexity and energy consumption of the system.

[0005] Therefore, there is an urgent need in the art for an integrated and efficient filtration solution, which should be able to: realize efficient multi-stage filtration in a limited space; have an online self-cleaning capacity without interrupting operation; and avoid secondary pollution and high cost problems caused by chemical cleaning or introduction of complex external media. SUMMARY

[0006] To solve the above technical problems, the application is solved by the following technical scheme.

[0007] A water supply pipeline filtration and water supply self-cleaning device, comprising a tank body having a filtration cavity inside, a water inlet interface being arranged at the lower part of the tank body, and a water outlet interface being arranged at the upper part of the tank body, wherein the tank body is provided with:

[0008] Two fixed partitions, which divide the filter cavity into a primary filtration zone, a fine filtration zone and a water outlet zone from bottom to top; one side of the fixed partitions is provided with a gap for water flow, and the gap cooperates with the inner wall of the tank to form a through port for water flow from the primary filtration zone to the fine filtration zone or from the fine filtration zone to the water outlet zone; a sealing plate is assembled on the fixed partition, and a sealing control unit is assembled on the tank, which is used to control the sealing plate to seal the through port.

[0009] A plurality of movable partitions are arranged in the fine filtration zone and distributed along the axial direction of the tank, and the movable partitions are provided with gaps for water flow; the gaps of adjacent movable partitions face in opposite directions, so that the water flow direction in the fine filtration zone forms a continuous S shape; a deformable filter unit is arranged between adjacent movable partitions.

[0010] A cleaning drive unit is used to drive the movable partitions to move, so that the distance between two adjacent movable partitions or between an adjacent movable partition and a fixed partition increases or decreases, thereby cleaning the filter unit by repeatedly compressing the filter unit.

[0011] A blowdown pipe is in communication with the fine filtration zone and is used for blowdown during self-cleaning.

[0012] As a preferred embodiment of the water pipeline filter water self-cleaning device, the fixed partition is provided with a sliding rail extending towards the gap, and the sealing plate is provided with a sliding groove matched with the sliding rail; the sealing control unit is connected with a drive rod, which penetrates the wall of the tank through a sealing structure and is connected with the sealing plate.

[0013] As a preferred embodiment of the water pipeline filter water self-cleaning device, the cleaning drive unit includes a drive motor connected with a screw rod, and the screw rod is processed with thread segments with opposite rotation directions; each movable partition is engaged with a corresponding thread segment through a thread sleeve.

[0014] A limiting groove is arranged on the movable partition, and a protruding rib matched with the limiting groove is arranged on the inner wall of the tank, so as to convert the rotary motion of the screw rod into the linear motion of the movable partition; when the screw rod rotates in one direction, the adjacent movable partitions are driven to move towards or away from each other synchronously.

[0015] As a preferred embodiment of the water pipeline filter water self-cleaning device, the filter unit is a flexible sponge made of polymer fiber material.

[0016] As a preferred embodiment of the water pipeline filter water self-cleaning device, silver ions are added to the flexible sponge.

[0017] As a preferred embodiment of the water supply pipeline filtering water supply self-cleaning device, the inlet of the blowdown pipe is arranged in the fine filtering area and located in the area surrounded by the gap of the moving partition plate and the inner wall of the tank.

[0018] As a preferred embodiment of the water supply pipeline filtering water supply self-cleaning device, a flushing pipe is further arranged, which is connected to the water supply system and communicates with the area where the inlet of the blowdown pipe is located.

[0019] As a preferred embodiment of the water supply pipeline filtering water supply self-cleaning device, a Venturi aerator is arranged on the flushing pipe.

[0020] Compared with the prior art, the present application has the following beneficial technical effects:

[0021] 1. By using a fixed partition plate to divide the tank into a primary filtering area, a fine filtering area and a water outlet area, the multi-stage filtering function realized by connecting multiple independent tanks in series in the traditional technology is highly integrated. This effectively solves the problems of complex structure, large occupied area and long pipeline leading to large resistance loss of the prior art equipment, simplifies the system structure, and reduces the manufacturing cost and installation space requirement.

[0022] 2. By arranging a moving partition plate controlled by a cleaning driving unit and a deformable filtering unit, mechanical compression cleaning can be started regularly or on demand. The entire self-cleaning process relies entirely on physical and mechanical action, without introducing any chemicals or external high-temperature steam that may contaminate the water quality, thereby fundamentally eliminating the risk of chemical residues or medium mixing and ensuring the purity and safety of the water supply. Moreover, the cleaning efficiency is high, overcoming the technical defects of incomplete traditional backwashing cleaning, residual chemical cleaning, high energy consumption of steam cleaning and long downtime.

[0023] 3. By using a deformable filtering unit (such as a flexible sponge) that can be directly compressed, stubborn particles embedded deep in the unit can be effectively released. This cleaning method is more thorough than simple surface flushing backwashing technology, and can significantly restore the filtering performance of the filtering unit and prolong its service life.

[0024] 4. By arranging a sealing plate and a sealing control unit, the filtering area can be closed during cleaning to form an independent cleaning area, so that the high-concentration sewage generated during cleaning can be concentrated and quickly discharged through the blowdown pipe, avoiding the circulation of pollutants in the system, thereby improving the cleaning efficiency and reducing the consumption of cleaning water, achieving the effect of water and energy saving. BRIEF DESCRIPTION OF DRAWINGS

[0025] Figure 1 FIG. 1 is a perspective view of the self-cleaning device.

[0026] Figure 2 FIG. 7 is a sectional view of the structure of the self-cleaning device at the filtering cavity.

[0027] Figure 3 Structure diagram of fixed partition for self-cleaning device.

[0028] Figure 4 Assembly diagram of screw rod and movable partition.

[0029] Figure 5 Wiring diagram of blowdown pipe and flushing pipe.

[0030] The following is a description of the reference signs:

[0031] 100, tank body; 101, water inlet; 102, water outlet; 103, blowdown pipe; 104, flushing pipe; 105, convex rib; 106, primary filter blowdown port; 110, fixed partition; 111, through hole; 112, sealing plate; 113, sliding rail; 120, movable partition; 121, notch; 122, threaded sleeve; 123, limiting groove; 130, filter unit; 140, Venturi aerator;

[0032] 200, cleaning driving unit; 210, driving motor; 220, screw rod; 221, threaded segment;

[0033] 300, sealing control unit; 310, driving rod. DETAILED DESCRIPTION

[0034] The application will be further described below in conjunction with the drawings and specific embodiments.

[0035] In the following embodiments, the same or similar reference signs represent the same or similar elements or elements having the same or similar functions throughout, and the following embodiments described by referring to the drawings are exemplary and are only used to explain the application, and cannot be understood as limiting the application.

[0036] In the description of the application, it should be understood that the terms: center, longitudinal, transverse, length, width, thickness, upper, lower, front, rear, left, right, vertical, horizontal, top, bottom, inner, outer, clockwise, counterclockwise, etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the application and simplifying the description, and therefore cannot be understood as limiting the application. In addition, the terms: first, second, etc. are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features shown. In the description of the application, unless otherwise explicitly specified and limited, the terms: mounting, connecting, connecting, etc. should be understood in a broad sense, and those skilled in the art can understand the specific meaning of the above terms in the application according to the specific circumstances.

[0037] Reference Figures 1 to 5This invention provides a water supply pipeline filtration and self-cleaning device, which mainly includes a tank 100 with a filter chamber inside. The tank 100 has a water inlet 101 at the bottom and a water outlet 102 at the top.

[0038] The filtration chamber is divided into three continuous chambers from bottom to top by two fixed partitions: a pre-filtration zone, a fine filtration zone, and an outlet zone. A notch 121 is formed on the side of the fixed partition 110, which, together with the inner wall of the tank 100, defines a passage 111 for fluid passage. The upper passage 111 connects the fine filtration zone and the outlet zone, while the lower passage 111 connects the pre-filtration zone and the fine filtration zone.

[0039] To achieve a seal in the filter chamber, each fixed partition 110 is equipped with a slidable sealing plate 112. A sealing control unit 300 is installed externally on the tank body 100; this unit is preferably an electric push rod, a pneumatic cylinder, or a hydraulic cylinder. The drive rod 310 of the sealing control unit 300 passes through the wall of the tank body 100 via a dynamic sealing structure and connects to the sealing plate 112. To ensure the stability of the sealing plate 112's movement, a slide rail 113 extending along the notch 121 can be provided on the fixed partition 110; correspondingly, a groove is formed on the sealing plate 112 to cooperate with the slide rail 113. This structure ensures the straightness and smoothness of the sealing plate 112's movement during opening and closing, thereby achieving reliable sealing and smooth opening and closing of the port 111.

[0040] Within the fine filtration zone, several movable baffles are distributed along the axial direction of the tank 100. Each movable baffle 120 has a notch 121, and the notches 121 on adjacent movable baffles 120 are oriented opposite to each other. This arrangement forces the flow direction of the fluid to change as it flows through the fine filtration zone, thereby forming a roughly S-shaped tortuous flow channel to increase the contact path and time between the fluid and the filter medium.

[0041] Between every two adjacent movable partitions 120, a deformable filter unit 130 is filled. In a preferred embodiment, the filter unit 130 is made of a flexible sponge of polymer fiber material. This material has a highly porous three-dimensional network structure, capable of trapping suspended particles in the water. Its inherent elastic deformation capability is the basis for its ability to withstand repeated mechanical compression to achieve self-cleaning. To further improve the hygienic performance of the filter unit 130, silver ions can be added during the manufacturing process of the flexible sponge to give it the function of inhibiting microbial growth, thereby ensuring the biological safety of the effluent.

[0042] The device also includes a cleaning drive unit 200 for driving the movable partition 120 to move, thereby increasing or decreasing the distance between two adjacent movable partitions 120 or between adjacent movable partitions 120 and fixed partition 110, thereby periodically compressing and expanding the flexible sponge filter unit 130 disposed therebetween to achieve mechanical self-cleaning.

[0043] Specifically, the cleaning drive unit 200 includes a drive motor 210, the output shaft of which is connected to a screw 220. The screw 220 is rotatably supported on the tank 100 by a bearing structure, and its shaft is machined with alternating opposite threaded sections 221. Each movable partition 120 is engaged with one of the threaded sections by a built-in threaded sleeve 122. To prevent the movable partition 120 from rotating with the screw 220, a limiting groove 123 is provided on the edge of the movable partition 120, and a rib 105 is provided on the inner wall of the tank 100 to slide in cooperation with the limiting groove 123. Based on this structure, when the drive motor 210 drives the screw 220 to rotate in one direction, the movable partitions 120 engaged with adjacent, oppositely oriented threaded sections 221 will move synchronously towards or away from each other under the constraint of the limiting structure.

[0044] To discharge wastewater during the self-cleaning cycle, the fine filtration zone is connected to a drain pipe 103. Preferably, the inlet of the drain pipe 103 is located in the area enclosed by the flow opening 121 of the movable baffle 120 and the inner wall of the tank 100. This area is a fluid turning space during the filtration process, with a low flow velocity, making it easy for dirt to accumulate. Therefore, setting the drain pipe 103 here helps to efficiently collect and remove contaminants that fall off during the cleaning process.

[0045] To further improve cleaning efficiency, the device can be further equipped with a flushing pipe 104. This flushing pipe 104 is connected to a clean water source, and its outlet leads to the area where the inlet of the drain pipe 103 is located. During self-cleaning, high-pressure clean water can be injected into the flushing pipe 104, which, in conjunction with the mechanical compression action of the moving baffle 120, quickly flushes the detached dirt away from the filter unit 130 and guides it to the drain pipe 103.

[0046] More preferably, a Venturi aerator 140 can be integrated into the flushing pipe 104. This aerator utilizes the negative pressure generated by the high-speed water flow through its nozzle to automatically draw in air and mix it with the water flow, forming an air-water mixture rich in microbubbles. These microbubbles are eliminated as they flow through the filter unit 130, generating localized high-energy microjet streams, thereby enhancing the deep cleaning effect on the filter unit 130.

[0047] Furthermore, the primary filtration zone is mainly used to intercept large suspended particles in the water. To achieve independent sewage discharge and cleaning of this zone, an independent primary filtration sewage outlet 106 is provided at the bottom of the primary filtration zone. This primary filtration sewage outlet 106 is preferably located at the lowest point of the primary filtration zone, so that high-density impurities and particles deposited there can be concentrated and periodically discharged. This design enables the device to achieve staged cleaning: the primary filtration zone can independently undergo regular sludge discharge without affecting the main filtration process of the fine filtration zone, and can also be opened synchronously during the self-cleaning of the entire device, thereby improving the overall sewage discharge efficiency and extending the service life of the fine filtration zone filter unit 130.

[0048] The scope of protection of this invention includes, but is not limited to, the above embodiments. The scope of protection of this invention is defined by the claims. Any substitutions, modifications, or improvements to this technology that are easily conceived by those skilled in the art fall within the scope of protection of this invention.

Claims

1. A water supply pipeline filtration and self-cleaning device, comprising a tank (100) with an internal filter chamber, a water inlet (101) at the lower part of the tank (100), and a water outlet (102) at the upper part of the tank (100), characterized in that, The tank (100) is equipped with: Two fixed partitions (110) divide the filtration chamber into a primary filtration zone, a fine filtration zone, and an outlet zone from bottom to top. One side of the fixed partition (110) is provided with a flow notch (121), which, together with the inner wall of the tank (100), forms an opening (111) for water to flow from the primary filtration zone into the fine filtration zone or from the fine filtration zone into the outlet zone. A sealing plate (112) is mounted on the fixed partition (110), and a sealing control unit (300) is mounted on the tank (100). The sealing control unit (300) is used to control the sealing plate (112) to seal the opening (111). Several movable baffles (120) are provided in the fine filtration zone and distributed along the axial direction of the tank (100). The movable baffles (120) are provided with notches (121) for flow. The notches (121) of adjacent movable baffles (120) face opposite directions, so that the water flow direction in the fine filtration zone is a continuous S-shape. Deformable filter units (130) are provided between adjacent movable baffles (120). The cleaning drive unit (200) is used to drive the movable partition (120) to move, so that the distance between two adjacent movable partitions (120) or between adjacent movable partitions (120) and fixed partitions (110) increases or decreases, and the filter unit (130) is cleaned by repeatedly compressing the filter unit (130). The drain pipe (103) is connected to the fine filtration area and is used to drain sewage during self-cleaning. The fixed partition (110) is provided with a slide rail (113) extending toward the notch (121), and the sealing plate (112) is provided with a groove that matches the slide rail (113); the sealing control unit (300) is connected to a drive rod (310), and the drive rod (310) penetrates the wall of the tank (100) through the sealing structure and connects to the sealing plate (112); The cleaning drive unit (200) includes a drive motor (210), which is connected to a screw (220). The screw (220) has threaded segments (221) with alternating opposite directions of rotation. Each movable partition (120) is engaged with a corresponding threaded segment (221) through a threaded sleeve (122). The movable partition (120) is provided with a limiting groove (123), and the inner wall of the tank (100) is provided with a rib (105) that matches the limiting groove (123), thereby converting the rotational motion of the screw (220) into the linear motion of the movable partition (120). When the screw (220) rotates in one direction, it drives the adjacent movable partitions (120) to move synchronously towards or away from each other.

2. The water supply pipeline filtration and self-cleaning device according to claim 1, characterized in that, The filter unit (130) is a flexible sponge made of polymer fiber material.

3. The water supply pipeline filtration and self-cleaning device according to claim 2, characterized in that, The flexible sponge contains silver ions.

4. The water supply pipeline filtration and self-cleaning device according to claim 1, characterized in that, The inlet of the drain pipe (103) is located within the fine filtration zone and in the area enclosed by the notch (121) of the movable partition (120) and the inner wall of the tank (100).

5. A water supply pipeline filtration and self-cleaning device according to claim 4, characterized in that, It also includes a flushing pipe (104), which is connected to an external water supply system and is connected to the area where the inlet of the sewage pipe (103) is located.

6. A water supply pipeline filtration and self-cleaning device according to claim 5, characterized in that, The flushing pipe (104) is equipped with a Venturi aerator (140).

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