Filter element capable of being easily backwashed under multi-slag working condition

Abstract

The utility model discloses an easy-to-backwash filter element suitable for a multi-slag working condition. The easy-to-backwash filter element comprises an inner framework and an outer framework, the inner framework and the outer framework are both of a cylindrical structure, the outer framework is coaxially arranged outside the inner framework in a sleeving mode, and a gap is formed between the inner framework and the outer framework; two groups of end covers are arranged, and the two groups of end covers are detachably connected with the two ends of the outer framework respectively; a plurality of composite function filtering raw material cloth layers are wound on the inner framework; the inflatable layer is arranged between the adjacent composite function filtering raw material cloth layers; wherein an air supply module is installed on the end cover located at the top end, and the air supply module is communicated with the inflatable layer. In the using process of the filter element, the filter layer structure of the filter element is changed during backwashing through ventilation and deflation, so that the interlayer distance is increased, the material is thinned, backwashing impurities are rapidly removed, the interlayer impurities are removed, and the impurities in the material can also be effectively removed.

Description

Technical Field

[0001] This utility model relates to the field of filtration equipment technology, and in particular to a filter element that is easy to backwash under various slag conditions. Background Technology

[0002] Currently, in the water treatment field, filter cartridges, especially wound filter cartridges, often suffer from buildup of sludge. The multi-layered structure easily leads to the accumulation of sludge between the layers, causing deep clogging. The dense, multi-layered structure also prevents the sludge from being flushed out, resulting in a shorter filter cartridge lifespan. Therefore, extending filter cartridge lifespan while reducing costs and waste generation is a crucial issue.

[0003] Based on the above-mentioned technical problems, this utility model provides a filter element that is easy to backwash under various slag conditions. Utility Model Content

[0004] The purpose of this invention is to provide a filter element that is easy to backwash under various slag conditions, in order to solve the problems existing in the prior art.

[0005] To achieve the above objectives, this utility model provides the following solution: This utility model provides an easily backwashable filter element suitable for various slag conditions, comprising:

[0006] Internal skeleton;

[0007] The outer frame, the inner frame and the outer frame are both cylindrical structures, and the outer frame is coaxially sleeved outside the inner frame, with a gap between the inner frame and the outer frame;

[0008] End caps, wherein two sets of end caps are provided, and the two sets of end caps are detachably connected to both ends of the outer frame respectively;

[0009] A composite functional filter material cloth layer, wherein several layers of the composite functional filter material cloth layer are wound around the inner skeleton;

[0010] An air-expansion layer is disposed between adjacent composite functional filter material cloth layers;

[0011] An air supply module is installed on the end cap located at the top, and the air supply module is connected to the air expansion layer.

[0012] According to the present invention, the filter element that is easy to backwash under various slag conditions is provided, and the ends of the outer frame are configured with a serrated structure.

[0013] According to the present invention, the filter element that is easy to backwash under various slag conditions is provided. The air supply module includes an annular air supply pipe. The top and bottom ends of the air expansion layer are respectively fixedly connected to an annular air distribution pipe. An air supply connector is installed on the annular air supply pipe. An air inlet valve is installed on the annular air distribution pipe. The air supply connector is connected to the air inlet valve.

[0014] According to the present invention, the filter element is applicable to various slag conditions and can be easily backwashed. The end cover is equipped with a buckle, and the end cover and the outer frame are detachably connected by the buckle.

[0015] According to the present invention, the inner diameter of the inner skeleton of the filter element that is easy to backwash under various slag conditions is 60-95mm, the height is 25-1500mm, and the outer diameter of the outer skeleton is 100-200mm.

[0016] According to the present invention, the filter element that is easy to backwash under various slag conditions has a knob fixedly connected to the end cap located at the top.

[0017] The present invention discloses the following technical effects:

[0018] This invention utilizes air circulation and venting to alter the filter element's structure during backwashing. This increases the interlayer distance, thins the material, and, combined with the material's elasticity, enables rapid removal of backwash impurities. It effectively removes not only interlayer impurities but also those within the material itself, and allows for convenient control over the impact of incoming liquid impurities. Even with high levels of incoming liquid impurities, the filter element can be allowed to pass through without backwashing, achieving pore size control during the process and significantly extending its lifespan. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a schematic diagram of the structure of the filter element that can be easily backwashed under various slag conditions according to this utility model;

[0021] Figure 2 This is a schematic diagram of the stacked structure of the composite functional filter material cloth layer and the air expansion layer of this utility model.

[0022] The components include: 1. Inner skeleton; 2. Outer skeleton; 3. End caps; 4. Composite functional filter material cloth layer; and 5. Air expansion layer. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0025] Reference Figures 1-2 This utility model provides an easily backwashable filter element suitable for various slag conditions, comprising:

[0026] Internal skeleton 1;

[0027] The outer frame 2, inner frame 1 and outer frame 2 are all cylindrical structures, and the outer frame 2 is coaxially sleeved outside the inner frame 1, with a gap between the inner frame 1 and the outer frame 2.

[0028] End cap 3, two sets of end cap 3 are provided, and the two sets of end cap 3 are detachably connected to both ends of the outer frame 2 respectively;

[0029] The composite functional filter material cloth layer 4 has several layers wound on the inner skeleton 1; the composite functional filter material cloth layer 4 is an elastic cloth or a non-elastic cloth.

[0030] The composite functional filter material layer 4 is a composite of elastic fibers and functional fibers, wherein the functions include hydrophilic, oleophilic, water-blocking, and oil-blocking composite materials; or it may be a functional fiber only.

[0031] Air-expansion layer 5 is disposed between adjacent composite functional filter material cloth layers 4;

[0032] An air supply module is installed on the end cap 3 at the top, and the air supply module is connected to the air expansion layer 5.

[0033] This invention utilizes air circulation and venting to alter the filter element's structure during backwashing, increasing the interlayer distance and thinning the material. This allows for rapid removal of backwash impurities, effectively eliminating not only interlayer impurities but also those within the material itself. Furthermore, it allows for convenient control over the impact of incoming liquid impurities. Even with high levels of incoming liquid impurities, the filter element can be allowed to pass through without backwashing, achieving pore size control during the process and significantly extending its lifespan.

[0034] In this invention, the composite functional filter material cloth layer 4 is composed of elastic fibers and functional fibers, which enables elasticity while maintaining performance. At the same time, during the deformation process, impurities inside the material can be removed by extrusion, and the volume filtration changes according to Poisson's ratio.

[0035] Further optimization of the design involves setting the ends of the exoskeleton 2 to a serrated structure.

[0036] The scheme is further optimized. The air supply module includes an annular air supply pipe. The top and bottom of the air expansion layer 5 are respectively fixedly connected to annular air distribution pipes. An air supply connector is installed on the annular air supply pipe, and an air inlet valve is installed on the annular air distribution pipe. The air supply connector and the air inlet valve are connected. A connecting pipe is installed on the annular air supply pipe, which is connected to the air supply component to facilitate air supply to the device. The air expansion layer 5 is formed by weaving multiple sets of flexible air-filled tubes and is set in the inner layer of the composite functional filter material cloth layer 4. It is wound around the composite functional filter material cloth layer 4. When in use, air is supplied through the air supply device. The annular distribution pipe distributes the gas into multiple air-filled tubes, so that the air expansion layer 5 expands the composite functional filter material cloth layer 4. Impurities in the material can be easily flushed out as the material expands and thins. At the same time, impurities between layers can also be flushed out through the enlarged material holes, ultimately achieving back-cleaning.

[0037] The design has been further optimized by installing a buckle on the end cap 3, which allows for a detachable connection between the end cap 3 and the outer frame 2. The buckle is designed to be embedded.

[0038] Further optimization of the scheme: the inner diameter of the inner frame 1 is 60-95mm, the height is 25-1500mm, and the outer diameter of the outer frame 2 is 100-200mm.

[0039] The design was further optimized by attaching a knob to the top end cap 3. This knob allows the top end cap 3 to be quickly removed, preventing it from being pressed and stuck to the internal structure, which would make disassembly and maintenance difficult.

[0040] In the description of this utility model, it should be understood that the terms "longitudinal", "lateral", "up", "down", "front", "back", "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 this utility model 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 utility model.

[0041] The embodiments described above are merely preferred embodiments of the present utility model and are not intended to limit the scope of the present utility model. Various modifications and improvements made to the technical solutions of the present utility model by those skilled in the art without departing from the spirit of the present utility model should fall within the protection scope defined by the claims of the present utility model.

Claims

1. A filter element that is easy to backwash under various slag conditions, characterized in that, include: Internal skeleton (1); The outer frame (2) and the inner frame (1) and the outer frame (2) are both cylindrical structures, and the outer frame (2) is coaxially sleeved outside the inner frame (1), and there is a gap between the inner frame (1) and the outer frame (2); End caps (3), two sets of end caps (3) are provided, and the two sets of end caps (3) are detachably connected to both ends of the outer frame (2); Composite functional filter material cloth layer (4), wherein the composite functional filter material cloth layer (4) is wound with several layers on the inner skeleton (1); An air-expanding layer (5) is disposed between adjacent composite functional filter material cloth layers (4); An air supply module is installed on the end cap (3) at the top, and the air supply module is connected to the air expansion layer (5).

2. The filter element that is easy to backwash under various slag conditions according to claim 1, characterized in that: The ends of the exoskeleton (2) are configured with a serrated structure.

3. The filter element that is easy to backwash under various slag conditions according to claim 1, characterized in that: The gas supply module includes an annular gas supply pipe. The top and bottom ends of the gas expansion layer (5) are respectively fixedly connected to an annular gas distribution pipe. A gas supply connector is installed on the annular gas supply pipe. An air inlet valve is installed on the annular gas distribution pipe. The gas supply connector is connected to the air inlet valve.

4. The filter element that is easy to backwash under various slag conditions according to claim 1, characterized in that: The end cap (3) is equipped with a buckle, and the end cap (3) and the outer frame (2) are detachably connected by the buckle.

5. The filter element that is easy to backwash under various slag conditions according to claim 1, characterized in that: The inner frame (1) has an inner diameter of 60-95mm and a height of 25-1500mm, and the outer frame (2) has an outer diameter of 100-200mm.

6. The filter element that is easy to backwash under various slag conditions according to claim 1, characterized in that: A knob is fixedly connected to the end cap (3) located at the top.

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