Filter element capable of improving liquid output

Abstract

The utility model discloses a filter element capable of improving liquid output, which relates to the field of filter elements, and adopts the technical scheme that the filter element comprises a filter cavity formed by a filter cartridge and a central pipe arranged in the filter cavity, filtered filtrate is discharged through the central pipe, a sleeve is arranged in the center of the inner part of the central pipe, and after the filter element is arranged in a filter tank body, the sleeve is connected with the filter cartridge. The casing pipe can filter and discharge residual liquid at the bottom of the tank body, so that the residual liquid at the bottom of the tank body can be filtered and discharged through the casing pipe, and liquid accumulation in the tank is avoided, and the liquid output is not influenced.

Description

Technical Field

[0001] The utility model relates to the field of filter elements, and more specifically, to a filter element capable of increasing liquid output. Background Art

[0002] The filter element is a key component in the filtration device and is usually made of a variety of materials. It generally includes filter membranes, such as ultrafiltration membranes and reverse osmosis membranes, for precise filtering of impurities; activated carbon to absorb odors and harmful substances; and may also contain ion exchange resins to treat specific ions. Filter elements have different shapes and sizes to suit various filtration equipment. Its outer shell and end caps play a role in protection and sealing, and the center tube is used to guide the outflow of filtered liquid. Through sophisticated structural design and material selection, the filter element can effectively intercept and remove various pollutants and impurities in the fluid, thereby ensuring the quality and purity of the filtered fluid. It has important and wide applications in many fields such as water treatment and air purification.

[0003] After the traditional filter element has completed the filtration, filtrate (hereinafter referred to as residual liquid) will remain at the bottom of the filter tank (the tank of the filter device), and it is often discharged by injecting gas. However, the method of discharging the accumulated liquid from the bottom of the tank by pressing down the gas will cause the gas to be discharged from the filter element holes before reaching the bottom of the tank, resulting in insufficient pressure. There are still parts of the tank that have accumulated liquid and cannot be completely discharged, affecting the liquid output.

[0004] After the traditional filter element has completed the filtration, filtrate (hereinafter referred to as residual liquid) will remain at the bottom of the filter tank (tank body of the filtration device). The residual liquid is often filtered out by injecting compressed gas to pressurize the inside of the filter tank. However, the method of filtering the residual liquid by gas pressurization will cause the gas to be discharged from the holes of the filter cartridge on the filter element before reaching the bottom of the tank, resulting in insufficient pressure. There are still parts of the tank that accumulate liquid and cannot be filtered, affecting the liquid output.

[0005] Therefore, in order to solve the above technical problems, the present application proposes a filter element that can increase liquid output. Utility Model Content

[0006] In view of the deficiencies in the prior art, the utility model aims to provide a filter element that can increase liquid output.

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a filter element capable of improving liquid output, comprising a filter chamber formed by a filter cartridge and a central tube installed in the filter chamber, through which the filtrate after filtration is discharged, a sleeve is installed in the inner center of the central tube, a notch is opened in the middle of the central tube for the filtrate to enter, and the central tube extends from the bottom of the sleeve, and after the filter element is installed in the filter tank body, the sleeve can filter and discharge the residual liquid at the bottom of the tank body.

[0008] Preferably, the middle part of the filter cartridge is separated by a partition so that the filter element forms two upper and lower chambers. Through the obstruction of the partition, the filter element forms two upper and lower chambers, and also forms two groups of filter cartridges. The liquid filtered by the upper filter cartridge enters the upper chamber and is discharged through the central pipe, and the residual liquid is filtered through the lower filter cartridge and enters the lower chamber and is discharged by the sleeve. The design of the two chambers can make the selection of the upper and lower groups of filter cartridges more targeted.

[0009] Preferably, an annular fixing plate that fits the filter cartridge is welded on the outer side wall of the partition, and the two groups of filter cartridges separated by the partition are connected via the annular fixing plate.

[0010] Preferably, end caps are installed at both upper and lower ends of the filter cartridge, and the top and bottom of the filter cartridge are limited and fixed by the end caps, so that the overall stability of the filter element is higher.

[0011] Preferably, the central tube and the casing tube each have an independent pipeline to discharge the filtrate, and the drainage work between the two does not affect each other, so they can be controlled separately.

[0012] Preferably, the filter tank is detachably connected to the annular fixing plate by screws, so that the upper and lower filter cartridges can be removed from the annular fixing plate, making it convenient to repair, clean and replace different filter cartridges separately.

[0013] Compared with the prior art, the utility model has the following beneficial effects:

[0014] 1. Under the normal state of the utility model, the central tube discharges the liquid that has been filtered by the lower filter cartridge and enters the upper filter chamber through the notch. After the filtering is completed, the accumulated liquid is discharged by injecting compressed gas. When there is still accumulated liquid at the bottom of the filtering tank body by this method, the residual liquid that has been filtered by the lower filter cartridge and enters the lower filter chamber can be discharged through the sleeve to avoid the accumulation of liquid in the tank and affect the output of liquid, so as to solve the problem in the background technology that the pressure is not enough, there is still liquid accumulated in some parts of the tank and cannot be filtered, which affects the output of liquid;

[0015] 2. The utility model forms two upper and lower chambers of the filter element through the barrier of the partition, and also forms two groups of filter cartridges. The liquid entering the upper chamber after filtering by the upper filter cartridge is discharged through the central tube, and the residual liquid is filtered through the bottom filter cartridge and enters the lower chamber and is discharged by the sleeve. The design of the two chambers can select the filter cartridge more targetedly;

[0016] 3. The filter cartridge of the utility model is detachably connected to the annular fixing plate by screws, so that the upper and lower filter cartridges can be removed from the annular fixing plate, making it convenient to repair, clean and replace different filter cartridges separately. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of the present application. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention. In the drawings:

[0018] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0019] Figure 2 for Figure 1 The specific structural diagram after removing the head connection structure, the filter cartridge below, the end cover and the center tube below the notch;

[0020] Figure 3 For this utility model Figure 2 A schematic diagram of the specific structure after removing the annular fixing plate, the partition, the central tube below the notch and the filter cartridge below;

[0021] Figure 4 For this utility model Figure 1 Schematic diagram of the cross-sectional structure.

[0022] In the figure: 1. filter cartridge; 2. filter chamber; 3. center tube; 4. casing; 5. partition; 6. notch; 7. annular fixing plate; 8. end cover. DETAILED DESCRIPTION

[0023] like Figure 1-3 As shown, the utility model provides a filter element capable of improving the output of liquid, comprising a filter chamber 2 formed by a filter cartridge, and a central tube 3 installed in the filter chamber 2, through which the filtrate after filtering is discharged, a sleeve 4 is installed at the inner center of the central tube 3, and a notch 6 for the filtrate to enter is provided in the middle of the central tube 3 (such a middle does not refer to the exact middle, and can be understood as the area between the head and the bottom of the central tube 3. The staff can manufacture a central tube 3 with a corresponding notch height according to the needs of treating the residual liquid for use in conjunction with the filter element), the central tube 3 extends from the bottom of the sleeve 4, and after the filter element is installed in the filter tank body, the sleeve 4 can filter and discharge the residual liquid at the bottom of the tank body, and the middle of the filter cartridge 1 is separated by a partition 5 so that two upper and lower chambers are formed inside the filter element.

[0024] Through the obstruction of the partition 5, the filter element forms two upper and lower chambers, and also forms two groups of filter cartridges 1. After the upper filter cartridge 1 filters the liquid entering the upper chamber, it is discharged through the central tube 3 (normal filtering steps), and the residual liquid is filtered through the lower filter cartridge 1 and enters the lower chamber and is discharged by the sleeve 4. The design of the two chambers can more specifically select the types of filter cartridges 1 and filter cloths of the upper and lower groups. For example, the upper filter cartridge 1 only needs to be used for normal liquid, and there will be a lot of impurities accumulated in the residual liquid. When selecting the lower filter cartridge 1 and filter cloth, it is necessary to focus on selecting those with good anti-blocking performance. At the same time, the height of the partition 5 can be adjusted during manufacturing according to the actual height of the residual liquid in the tank to better discharge the residual liquid.

[0025] When in use, under normal conditions, the central tube 3 discharges the liquid that has passed through the lower filter cartridge 1 (filtered by the filter cloth on the surface of the filter cartridge 1, not shown in the figure) and entered the upper filter chamber 2 through the notch 6. After the filtration is completed, the accumulated liquid is discharged by injecting compressed gas. When there is still accumulated liquid at the bottom of the filtering tank body (tank body of the filtering device) in this way, the residual liquid that has passed through the lower filter cartridge 1 (filter cloth is set on the surface of the upper and lower groups of filter cartridges 1) and entered the lower filter chamber 2 can be discharged through the sleeve 4 (the sleeve 4 surface has no holes) (pressure is applied to the sleeve 4 to suck the liquid, and the liquid will naturally enter the lower filter chamber 2, so as to be filtered and discharged. The liquid discharge method of the central tube 3 is the same as this, which will not be explained in detail here) to avoid the accumulation of liquid in the tank and affect the liquid output. It should be noted that the central tube 3 and the sleeve 4 each have independent pipes to discharge the filtrate, and the drainage work between the two does not affect each other, so they can be controlled separately.

[0026] An annular fixing plate 7 that fits the filter cartridge 1 is welded on the outer wall of the partition 5, and the two groups of filter cartridges 1 separated by the partition 5 are connected through the annular fixing plate 7. It should be noted that the annular fixing plate 7 is designed to correspond to the filter cartridge 1, can fit tightly against the inner wall of the filter cartridge 1, and can limit the position of multiple filter cartridges 1, making the connection more secure. At the same time, the filter cartridge 1 and the annular fixing plate 7 are detachably connected by screws, so that the upper and lower filter cartridges 1 can be removed from the annular fixing plate 7, which is convenient for repairing, cleaning and replacing different filter cartridges 1 respectively.

[0027] End caps 8 are installed at both upper and lower ends of the filter cartridge 1, and the top and bottom of the filter cartridge 1 are limited and fixed (detachable fixing method) by the end caps 8, so that the overall stability of the filter element is higher.

[0028] The above description is only a preferred embodiment of the utility model and does not limit the utility model in any form. Any ordinary technician in the industry can smoothly implement the utility model as shown in the drawings of the specification and described above. However, any equivalent changes, modifications and evolutions made by technicians familiar with the profession without departing from the scope of the technical solution of the utility model using the technical content disclosed above are all equivalent embodiments of the utility model. At the same time, any equivalent changes, modifications and evolutions made to the above embodiments based on the essential technology of the utility model are still within the protection scope of the technical solution of the utility model.

Claims

1. A filter element capable of increasing liquid output, comprising a filter chamber (2) formed by a filter cartridge (1), and a central tube (3) installed in the filter chamber (2), wherein the filtrate after filtration is discharged through the central tube (3), characterized in that: A sleeve (4) is installed at the central part of the center tube (3), a notch (6) is provided in the middle of the center tube (3) for the filtrate to enter, the center tube (3) extends from the bottom of the sleeve (4), and after the filter element is installed in the filter tank body, the sleeve (4) can filter and discharge the residual liquid at the bottom of the tank body.

2. A filter element capable of increasing liquid output according to claim 1, characterized in that: The middle part of the filter cartridge (1) is separated by a partition (5), so that two upper and lower chambers are formed inside the filter element.

3. A filter element capable of increasing liquid output according to claim 2, characterized in that: An annular fixing plate (7) that fits the filter cartridge (1) is welded to the outer wall of the partition (5), and the two groups of filter cartridges (1) separated by the partition (5) are connected via the annular fixing plate (7).

4. A filter element capable of increasing liquid output according to claim 1, characterized in that: End covers (8) are installed at both the upper and lower ends of the filter cartridge (1).

5. A filter element capable of increasing liquid output according to claim 1, characterized in that: The central tube (3) and the casing tube (4) each have an independent pipeline for discharging the filtrate.

6. A filter element capable of increasing liquid output according to claim 3, characterized in that: The filter cartridge (1) and the annular fixing plate (7) are detachably connected via screws.

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