One-stage external source self-cleaning filtering system

Abstract

The utility model relates to the technical field of environmental protection, and particularly discloses a one-stage external source self-cleaning filtering system. Comprising a filter cavity, a filter element and a cleaning assembly, and the filter cavity is provided with a liquid inlet and a liquid outlet which are communicated with the filter cavity through valves; the filter element is arranged in the filter cavity and is used for filtering liquid entering the filter cavity; the cleaning assembly is used for self-cleaning the filter element; wherein the liquid inlet and the liquid outlet are respectively provided with a liquid inlet pipeline and a liquid outlet pipeline; a liquid inlet valve and a liquid outlet valve are respectively arranged on the liquid inlet pipeline and the liquid outlet pipeline; wherein the liquid inlet pipeline and the liquid outlet pipeline are respectively provided with a branch pipe, and the branch pipes of the liquid inlet pipeline and the liquid outlet pipeline are respectively provided with a cleaning valve and a blow-down valve. The system provided by the utility model realizes the function of maintenance without shutdown, so that not only is the operation efficiency of equipment improved, but also the productivity stability and reliability of the whole production line are remarkably improved.

Description

Technical Field

[0001] This utility model relates to the field of environmental protection technology, and in particular to a one-stage external self-cleaning filtration system. Background Technology

[0002] Traditional filtration systems, such as filter bags, filter cartridges, and filter plates, are widely used in various industries including water treatment, chemicals, and food. These systems primarily rely on physical interception or adsorption to separate impurities, thereby purifying liquids. However, these traditional filtration systems often encounter problems during long-term operation. Due to the continuous accumulation of particulate matter and clogging of the filter media, these systems frequently experience a gradual increase in pressure differential and a gradual decrease in flow rate. This not only leads to frequent shutdowns but also requires filter media replacement or manual cleaning, increasing maintenance costs. Furthermore, frequent shutdowns and cleaning can affect the continuity of production, negatively impacting production efficiency. Especially when handling fluids with high solids content, viscous fluids, or in applications requiring a sterile environment, manual intervention may introduce the risk of secondary contamination, which not only affects product quality but may also pose potential hazards to the environment and human health.

[0003] The patent "A Tubular Filter with Removable and Replaceable Filter Cartridge" (application number CN201922169392.5, hereinafter referred to as Prior Art 1) discloses a filter with a removable and replaceable filter cartridge. Prior Art 1's composite material filter adopts a modular design, facilitating quick replacement of filter media or cartridges. It mainly consists of a tubular inner liner, end support kits, and an outer fiberglass layer. The support kit has built-in embedded parts and retaining rings to fix the removable upper and lower covers. The lower cover connects to a three-way valve and extends an outlet pipe to insert a filter canister or pleated filter cartridge. The filter media container (filter canister or pleated filter cartridge) is equipped with a pull ring and a sealing insertion structure. Replacement is simple: remove the retaining ring, pull out the old filter cartridge, insert the new filter cartridge, and reset it. No professional tools are required, significantly reducing maintenance costs.

[0004] However, in the existing technology 1, the filter element still needs to be replaced and cleaned regularly. Although the process is relatively simple, when dealing with high loads or special fluids, the filter element may still be quickly clogged, resulting in frequent manual replacements, which is time-consuming and labor-intensive. Utility Model Content

[0005] In view of this, the present invention provides a one-stage external self-cleaning filtration system to solve the problem of rapid clogging of filter media in traditional filtration, which requires frequent replacement by manual intervention.

[0006] This utility model embodiment provides a one-stage external self-cleaning filtration system, comprising: a filtration chamber, having an inlet and an outlet connected to the filtration chamber via valves; a filter element, disposed within the filtration chamber, for filtering liquid entering the filtration chamber; and a cleaning component for self-cleaning the filter element; wherein the inlet and outlet are respectively provided with an inlet pipe and an outlet pipe; the inlet pipe and outlet pipe are respectively provided with an inlet valve and an outlet valve; wherein both the inlet pipe and outlet pipe are provided with branch pipes, and the branch pipes of the inlet pipe and outlet pipe are respectively provided with a cleaning valve and a drain valve.

[0007] Preferably, the cleaning component includes a backwashing structure; the backwashing structure backwashes the filter element by switching the flow direction of the inlet and outlet to discharge filter residue.

[0008] Preferably, when the backwashing structure is cleaning, the inlet valve is closed, the outlet valve is closed, the cleaning valve is open, and the drain valve is open; the cleaning liquid enters the filter chamber through the outlet to clean the filter element, and the cleaned liquid is discharged through the inlet.

[0009] Preferably, the cleaning assembly further includes: a first mounting portion and a second mounting portion respectively disposed at both ends of the filter element; and a cleaning brush rotatably mounted on the first mounting portion and the second mounting portion, wherein at least one cleaning brush is provided, and the cleaning brush is used to brush off filter residue from the surface of the filter element.

[0010] Preferably, the cleaning brush is driven by a rotating motor, causing the cleaning brush to rotate around the filter element for cleaning.

[0011] Preferably, the first mounting part and the second mounting part are configured as bearings or rotating tracks, and the cleaning brush moves along the path of the first mounting part and the second mounting part.

[0012] Preferably, the self-cleaning of the filter element by the filter chamber is triggered by the pressure difference between the inlet and outlet.

[0013] Preferably, the branch pipe includes a drain pipe connected to the inlet, and the drain valve is disposed on the drain pipe. The drain pipe is used to discharge sewage during self-cleaning.

[0014] Preferably, the branch pipe includes a cleaning pipe connected to the outlet, the cleaning valve is disposed on the cleaning pipe, and the cleaning pipe is used to introduce cleaning fluid.

[0015] Preferably, the filter element has a cylindrical structure, and the cleaning brush moves circumferentially to remove filter residue.

[0016] The one-stage external self-cleaning filtration system provided by this utility model has the following beneficial effects:

[0017] In this invention, by implementing an automated cleaning mechanism involving backwashing and cleaning brushes, filter media replacement can be achieved without manual intervention, successfully extending the filter media's lifespan. Furthermore, the system can automatically control the cleaning frequency based on real-time monitored differential pressure data, effectively reducing the overall system's energy consumption. Moreover, the system in this invention enables maintenance without downtime, which not only improves equipment operating efficiency but also significantly enhances the production line's capacity stability and reliability. Attached Figure Description

[0018] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments of this utility model will be briefly introduced below. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort, and these are all within the protection scope of this utility model.

[0019] Figure 1 This is a schematic diagram of a single-stage external source cleaning and filtration system;

[0020] Figure 2 This is a schematic diagram of the cleaning component of a one-piece external source cleaning and filtration system;

[0021] Figure 3 This is a schematic diagram of the piping structure of a single-stage external source cleaning and filtration system;

[0022] Parts and their numbers in the diagram:

[0023] 111-Filter chamber, 112-Liquid inlet, 113-Liquid outlet, 114-Filter element;

[0024] 211-Inlet pipe, 212-Outlet pipe, 213-Drain pipe, 214-Inlet valve, 215-Cleaning pipe, 216-Outlet valve, 217-Cleaning valve, 218-Drain valve;

[0025] 311-First mounting part, 312-Second mounting part, 313-Cleaning brush, 314-Rotating motor. Detailed Implementation

[0026] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. It should be noted that, in this document, relational terms such as "first" and "second" are merely used to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. In the description of this utility model, it should be understood that the terms "center," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships, are based on the orientation or positional relationships shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, 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, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element. Unless otherwise specified, embodiments of the present invention and the various features thereof can be combined with each other, all within the protection scope of the present invention.

[0027] Example 1

[0028] Please see Figure 1 This utility model embodiment provides a one-stage external self-cleaning filtration system; in traditional filtration systems, filter residue cannot be discharged during long-term use of filter element 114 and will continuously adhere to filter element 114, which can easily cause blockage, which will significantly reduce filtration efficiency and may even lead to complete failure of the filtration system.

[0029] Because these systems typically lack efficient self-cleaning capabilities, users are forced to frequently shut down for maintenance. This not only consumes a significant amount of time and labor but can also pose safety risks due to residual harmful gases (such as volatile media commonly found in the chemical industry) inside the filters.

[0030] This invention provides a one-stage external self-cleaning filtration system to avoid the problems of low efficiency, poor safety and high maintenance costs caused by frequent manual replacement of filter element 114 due to clogging of existing filtration systems.

[0031] Please see Figure 1In this embodiment, the system includes a single-stage external self-cleaning filtration chamber 111 and a filter element 114 disposed within the filtration chamber 111. The filtration chamber 111 is provided with an inlet 112 and an outlet 113 connected to the filtration chamber 111 via valves. The filter element 114 is used to filter the liquid entering the filtration chamber 111. A cleaning component is disposed within the filtration chamber 111 and is used to self-clean the filter element 114.

[0032] Please see Figure 3 The inlet 112 and outlet 113 are respectively provided with inlet pipe 211 and outlet pipe 212; inlet valve 214 and outlet valve 216 are respectively provided on inlet pipe 211 and outlet pipe 212; both inlet pipe 211 and outlet pipe 212 are provided with branch pipes, and cleaning valve 217 and drain valve 218 are respectively provided on the branch pipes of inlet pipe 211 and outlet pipe 212.

[0033] Given that more filter cake will accumulate on the filter element 114 of the filter chamber 111 as the filtration time increases, this will lead to a decrease in both the filtration quality and filtration efficiency of the filter chamber 111. Therefore, in order to maintain the efficient operation of the system, it is essential to perform regular self-cleaning of the filter chamber 111 using the cleaning component.

[0034] Please see Figure 3 During self-cleaning, the self-cleaning components and various valves work together to allow the cleaning fluid to enter the filter chamber. Through the inlet pipe 211 and its branch pipes, and under the control of the cleaning valve 217, the filter residue on the filter element 114 is flushed and loosened by the cleaning fluid. With the flow of the liquid, it is effectively discharged from the system through the outlet pipe 212 and its branch pipes, under the control of the drain valve 218.

[0035] Further, please see Figure 3 The cleaning assembly includes a backwashing structure. This backwashing structure backwashes the filter element 114 by switching the flow direction of the inlet 112 and outlet 113 to remove filter residue. During backwashing, the inlet valve 214 is closed, the outlet valve 216 is closed, the cleaning valve 217 is open, and the drain valve 218 is open. Cleaning fluid enters the filter chamber 111 through the outlet 113 to clean the filter element 114, and the cleaned liquid is discharged through the inlet 112.

[0036] In use, users simply need to set the cleaning cycle or configure the pressure detection component according to actual needs. The system then performs self-cleaning based on the pressure difference between the inlet 112 and outlet 113. The system automatically activates the cleaning components at preset time intervals and based on the pressure difference to perform backwashing. This automated design not only significantly reduces the workload of manual maintenance but also effectively avoids equipment damage or incomplete cleaning caused by improper manual operation. Simultaneously, by precisely controlling the opening and closing states of each valve, it ensures that the cleaning fluid can fully act on every tiny corner of the filter element 114, thoroughly removing accumulated filter residue and restoring the filtration quality and efficiency of the filter chamber 111, thus guaranteeing the continuous and efficient operation of the entire system.

[0037] Furthermore, please see Figure 2 The cleaning assembly further includes: a first mounting portion 311 and a second mounting portion 312 respectively disposed at both ends of the filter element 114; and a cleaning brush 313 rotatably mounted on the first mounting portion 311 and the second mounting portion 312, wherein at least one cleaning brush 313 is provided, and the cleaning brush 313 is used to brush away filter residue from the surface of the filter element 114. In this way, the filter residue on the filter element 114 is brushed away simultaneously during the backwashing process of the filter chamber 111, ensuring that the filter residue on the filter element 114 is thoroughly removed, thereby restoring it to a state where it can operate normally.

[0038] The cleaning brush 313 is driven by a rotating motor 314. The filter element 114 has a cylindrical structure. The cleaning brush 313 moves circumferentially to remove filter residue, so that the cleaning brush 313 rotates around the filter element 114 for cleaning.

[0039] The first mounting part 311 and the second mounting part 312 are configured as bearings or rotating tracks. The cleaning brush moves along the path of the first mounting part 311 and the second mounting part 312. The cleaning brush 313 is mounted on these bearings or rotating tracks and rotates based on them.

[0040] Furthermore, at least one cleaning brush 313 is provided; when two or more cleaning brushes 313 are provided, the two cleaning brushes 313 are connected by a spacer ring, so that the position between the two cleaning brushes 313 is restricted, and when one cleaning brush 313 is driven, the other cleaning brushes 313 can also work at the same time.

[0041] In use, the user can flexibly control the working state of the cleaning brush 313 by manually or automatically controlling the start and stop of the rotating motor 314. When the filter element 114 needs cleaning, the rotating motor 314 starts, driving the cleaning brush 313 to rotate around the filter element 114, brushing away the filter residue attached to the surface of the filter element 114. This design not only enhances the cleaning effect but also makes the cleaning process more uniform and thorough. At the same time, the first mounting part 311 and the second mounting part 312 act as bearings or rotating tracks, providing a stable and flexible movement path for the cleaning brush 313, ensuring that the cleaning brush 313 can move smoothly on the surface of the filter element 114 without causing damage to the filter element 114.

[0042] Furthermore, the branch pipe includes a drain pipe 213 connected to the inlet 112. The main function of the drain pipe 213 is to discharge wastewater outside the system during the self-cleaning process of the equipment. To achieve this function, a drain valve 218 is carefully positioned at an appropriate location on the drain pipe 213 to ensure that the drain valve 218 can be effectively opened when the self-cleaning cycle is started, thereby allowing wastewater to be discharged smoothly through the drain pipe 213, maintaining the cleanliness and hygiene of the system.

[0043] Meanwhile, the branch pipe also includes a cleaning pipe 215 connected to the outlet 113. The function of the cleaning pipe 215 is to introduce cleaning fluid to flush the inside of the system after the self-cleaning process is completed, ensuring that there is no residual dirt or impurities. In order to control the introduction of cleaning fluid, a cleaning valve 217 is set at an appropriate position on the cleaning pipe 215, so that the flow rate and time of the cleaning fluid can be accurately controlled during the cleaning phase of the self-cleaning cycle, thereby achieving the best cleaning effect.

[0044] This configuration, through the dual function of the drain pipe 213 and the cleaning pipe 215, ensures the cleanliness of the entire system, extends the service life of the equipment, and reduces product quality issues caused by internal contamination. Furthermore, the automation of the drain and cleaning processes significantly reduces the need for manual operation, improves work efficiency, and lowers operating costs.

[0045] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.

Claims

1. A one-stage external self-cleaning filtration system, characterized in that, include: The filter chamber (111) is provided with an inlet (112) and an outlet (113) that are connected to the filter chamber (111) through a valve. A filter element (114) is disposed in the filter chamber (111) for filtering the liquid entering the filter chamber (111); A cleaning component for self-cleaning the filter element (114); The inlet (112) and outlet (113) are respectively provided with an inlet pipe (211) and an outlet pipe (212); the inlet pipe (211) and outlet pipe (212) are respectively provided with an inlet valve (214) and an outlet valve (216). The inlet pipe (211) and outlet pipe (212) are both provided with branch pipes, and the branch pipes of the inlet pipe (211) and outlet pipe (212) are respectively provided with cleaning valve (217) and drain valve (218). The cleaning component also includes: A first mounting portion (311) and a second mounting portion (312) are respectively provided at both ends of the filter element (114); And a cleaning brush (313) rotatably mounted on the first mounting part (311) and the second mounting part (312), the cleaning brush (313) being used to brush off filter residue from the surface of the filter element (114); The cleaning brush (313) is driven by a rotating motor (314) so ​​that the cleaning brush (313) rotates around the filter element (114) for cleaning; The first mounting part (311) and the second mounting part (312) are configured as bearings or rotating tracks, and the cleaning brush (313) moves along the path of the first mounting part (311) and the second mounting part (312).

2. The one-stage external self-cleaning filtration system according to claim 1, characterized in that, The cleaning component includes a backwashing structure; the backwashing structure backwashes the filter element (114) by switching the flow direction of the inlet (112) and outlet (113) to discharge filter residue.

3. The one-stage external self-cleaning filtration system according to claim 2, characterized in that, When the backwashing structure is cleaning, the inlet valve (214) is closed, the outlet valve (216) is closed, the cleaning valve (217) is open, and the drain valve is open; the cleaning liquid enters the filter chamber (111) through the outlet (113) to clean the filter element (114), and the cleaned liquid is discharged through the inlet (112).

4. The one-stage external self-cleaning filtration system according to claim 1, characterized in that, The self-cleaning of the filter element (114) by the filter chamber (111) is triggered by the pressure difference between the inlet (112) and the outlet (113).

5. The one-stage external self-cleaning filtration system according to claim 1, characterized in that, The branch pipe includes a drain pipe (213) connected to the inlet (112), and a drain valve (218) is provided on the drain pipe (213). The drain pipe (213) is used to discharge sewage during self-cleaning.

6. The one-stage external self-cleaning filtration system according to claim 1, characterized in that, The branch pipe includes a cleaning pipe (215) connected to the outlet (113), and a cleaning valve (217) is disposed on the cleaning pipe (215). The cleaning pipe (215) is used to introduce cleaning fluid.

7. The one-stage external self-cleaning filtration system according to claim 1, characterized in that, The filter element (114) has a cylindrical structure, and the cleaning brush (313) moves along its circumference to remove filter residue.

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