An ultrafiltration filter element

Abstract

This utility model provides an ultrafiltration filter element, including an outer sleeve and a filter element component. The filter element component includes a filter assembly and a support head. A liquid passage is provided in the middle of the support head, and the filter assembly is disposed within the liquid passage to filter the fluid passing through it. The support head is disposed within the outer sleeve, with one end of the liquid passage located inside the outer sleeve and the other end located outside. The outer sleeve has an inlet and an outlet. This utility model embodiment achieves the technical effect of shortening the backwashing time of the filter element.

Description

Technical Field

[0001] This utility model relates to the field of filtration technology, and more specifically, to an ultrafiltration filter element. Background Technology

[0002] Filter cartridges are widely used as common filtration components, with fluid filtration being the most common application. It is known that after a certain period of filtration, filter cartridges are prone to accumulating impurities, easily leading to clogging. Current solutions to filter cartridge clogging include backwashing.

[0003] However, backwashing involves the flushing fluid flowing from inside the filter element to the outside. Due to the filter element's own filtration characteristics, this process is relatively slow, resulting in a long backwashing time. Utility Model Content

[0004] This invention addresses the shortcomings of existing methods by proposing an ultrafiltration filter element to solve the technical problem of long backwashing time in existing technologies.

[0005] This utility model provides an ultrafiltration filter element, including an outer sleeve and a filter element component;

[0006] The filter element component includes a filter assembly and a support head. The support head has a liquid passage in the middle. The filter assembly is disposed in the liquid passage to filter the fluid passing through the liquid passage. The support head is disposed in the outer sleeve, and one end of the liquid passage is located in the outer sleeve, while the other end is located outside the outer sleeve.

[0007] The outer sleeve is provided with a liquid inlet and a liquid outlet.

[0008] Optionally, the liquid outlet includes a liquid outlet pipe, one end of which is disposed in the outer sleeve and the other end extends out of the outer sleeve.

[0009] Optionally, the liquid outlet pipe passes through the liquid passage, the filter assembly is disposed at one end of the liquid passage located inside the outer sleeve, the gap between the liquid outlet pipe and the liquid passage has a liquid flow gap, and the filter assembly is disposed at the liquid flow gap.

[0010] Optionally, the filtration assembly includes multiple U-shaped filters;

[0011] The U-shaped filter screen has open ends at both ends and is disposed in the outer sleeve. The open ends are connected to the liquid passage.

[0012] Optionally, a plurality of the U-shaped filters are arranged around the periphery of the liquid outlet pipe.

[0013] Optionally, the liquid outlet tube is located at one end inside the outer sleeve and extends towards the end away from the support head, so as to be at least flush with the end of the U-shaped filter screen away from the support head;

[0014] And / or,

[0015] A blocking ring is provided at one end of the support head located inside the outer sleeve. One end of the blocking ring extends away from the support head to be at least flush with the end of the U-shaped filter screen away from the support head. The blocking ring surrounds all of the U-shaped filter screens.

[0016] Optionally, one end of the outer sleeve is provided with an open opening;

[0017] The support head is disposed at the opening, and a liquid inlet gap is provided between the outer wall of the support head and the inner wall of the outer sleeve, at least part of the liquid inlet gap is used to form the liquid inlet section.

[0018] Optionally, it also includes a sealing element, which is provided with a first channel, a second channel and a third channel;

[0019] The sealing element covers the opening and is connected to the support head and the liquid outlet pipe respectively. The first channel is connected to the liquid inlet, the second channel is connected to the liquid passage of the support head, and the third channel is connected to the liquid outlet pipe.

[0020] Optionally, it also includes a sealing element, wherein the sealing element is provided at the connection between the sealing element and the open port, at the connection between the sealing element and the support head, and at the connection between the sealing element and the liquid outlet pipe.

[0021] The beneficial technical effects brought about by the technical solution provided by this utility model embodiment include:

[0022] By setting up an outlet section, before the backwashing flushing liquid is introduced into the liquid inlet section, the forward flushing flushing liquid can be introduced first. The forward flushing flushing liquid is discharged from the outlet section. The forward flushing process will partially re-recycle the impurities attached to the outer wall of the filter element, thereby reducing the flushing volume during backwashing, thus speeding up the backwashing speed, improving the efficiency of backwashing, and shortening the backwashing time.

[0023] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and will become apparent from the description or may be learned by practice of the invention. Attached Figure Description

[0024] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the following description of the embodiments taken in conjunction with the accompanying drawings, in which:

[0025] Figure 1 A cross-sectional view of an ultrafiltration filter element product provided in an embodiment of this utility model;

[0026] Figure 2 A second sectional view of an ultrafiltration filter element product provided in an embodiment of this utility model;

[0027] Figure 3 An exploded view of an ultrafiltration filter element product provided in an embodiment of this utility model;

[0028] Figure 4 This is a second exploded view of an ultrafiltration filter element product provided in an embodiment of the present utility model.

[0029] The meanings of the reference numerals in the attached figures are as follows:

[0030] 10. Outer sleeve; 110. Liquid inlet; 120. Liquid outlet; 20. Filter element component; 21. Filter assembly; 22. Support head; 220. Liquid passage; 221. Baffle ring; 30. Liquid outlet pipe; 40. Sealing component; 41. First channel; 42. Second channel; 43. Third channel; 50. Sealing component. Detailed Implementation

[0031] The present invention will now be described in detail. Examples of embodiments of the present invention are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar parts or parts having the same or similar functions throughout. Furthermore, detailed descriptions of known technologies that are unnecessary for the features of the present invention shown are omitted. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0032] It will be understood by those skilled in the art that, unless otherwise defined, all terms used herein (including technical and scientific terms) have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. It should also be understood that terms such as those defined in general dictionaries should be understood to have the same meaning as in the context of the prior art, and should not be interpreted in an idealized or overly formal sense unless specifically defined as herein.

[0033] Those skilled in the art will understand that, unless specifically stated otherwise, the singular forms “a,” “an,” “the,” and “the” used herein may also include the plural forms. It should be further understood that the term “comprising” as used in this specification means the presence of the stated features, integers, steps, operations, elements, and / or components, but does not exclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and / or groups thereof. It should be understood that when we say an element is “connected” or “coupled” to another element, it can be directly connected or coupled to the other element, or there may be intermediate elements. Furthermore, “connected” or “coupled” as used herein can include wireless connections or wireless coupling. The term “and / or” as used herein includes all or any units and all combinations of one or more associated listed items.

[0034] The present invention provides an ultrafiltration filter element, which aims to solve the above-mentioned technical problems of the prior art.

[0035] The technical solution of this utility model and how the technical solution of this utility model solves the above-mentioned technical problems will be described in detail below with specific embodiments.

[0036] This utility model embodiment provides an ultrafiltration filter element product, the structural schematic diagram of which is shown below. Figures 1-4 As shown, it includes: an outer sleeve 10 and a filter element component 20; the filter element component 20 includes a filter assembly 21 and a support head 22, the support head 22 is provided with a liquid passage 220 in the middle, the filter assembly 21 is disposed in the liquid passage 220 to filter the fluid passing through the liquid passage 220, the support head 22 is disposed in the outer sleeve 10, and one end of the liquid passage 220 is located in the outer sleeve 10, and the other end is located outside the outer sleeve 10; the outer sleeve 10 is provided with a liquid inlet 110 and a liquid outlet 120.

[0037] It is known that the outer sleeve 10 has a hollow structure in the middle, so its interior can be used to store fluids and other media. In this embodiment, the process of fluid passing through the filter assembly 21 is as follows: the fluid enters the outer sleeve 10 from the liquid inlet 110, then the fluid is filtered by the filter assembly 21 and flows out from the liquid passage 220, thereby completing the filtration of the fluid. During this process, impurities in the fluid are filtered by the filter assembly 21 and adhere to the filter assembly 21.

[0038] Importantly, this embodiment also includes a liquid outlet 120 on the outer sleeve 10. The liquid outlet 120 is used for forward rinsing before backwashing. Combined with... Figure 1Specifically, in a normal filtration process, the outlet section 120 is closed. When the filter assembly 21 needs to be rinsed, the outlet section 120 is first opened, and rinsing liquid is introduced into the outer sleeve 10 from the inlet section 110. The rinsing liquid washes away the deposits (i.e., impurities) on the filter assembly 21. Afterward, the rinsing liquid, carrying the deposits, is discharged from the outlet section 120, thus completing the aforementioned forward rinsing. Combined with... Figure 2 However, at this time, there are still some deposits on the filter assembly 21. Then, the flushing liquid is introduced into the filter assembly 21 in reverse from the liquid passage 220. The flushing liquid washes away the remaining deposits on the filter assembly 21. After that, the flushing liquid is discharged from the liquid outlet 120. After the flushing is completed, the liquid outlet 120 can be closed.

[0039] Preferably, the filter component 21 is a filter screen.

[0040] In the above embodiment, a prior forward flush is performed through the liquid inlet 110 and the liquid outlet 120 before backflushing. The forward flush effectively removes some of the deposits on the filter assembly 21, reducing the flushing resistance for subsequent backflushing, increasing the speed of backflushing, and thus reducing the backflushing time.

[0041] Optionally, the liquid outlet section 120 includes a liquid outlet pipe 30, one end of which is disposed in the outer sleeve 10 and the other end extends out of the outer sleeve 10.

[0042] In this embodiment, the outlet pipe 30 is provided to better discharge the flushing fluid after rinsing. In this embodiment, the outlet pipe 30 may be equipped with a valve for opening or closing, which will not be elaborated here.

[0043] Optionally, the liquid outlet pipe 30 passes through the liquid passage 220, and the filter assembly 21 is disposed at one end of the liquid passage 220 located inside the outer sleeve 10. The gap between the liquid outlet pipe 30 and the liquid passage 220 has a liquid flow gap, and the filter assembly 21 is disposed at the liquid flow gap as a barrier.

[0044] In this embodiment, the liquid outlet pipe 30 and the support head 22 can be understood as having a nested relationship. This allows for the centralized arrangement of different components, improving the overall compactness of the ultrafiltration filter element structure. In addition, both the liquid passage 220 and the liquid outlet pipe 30 guide the flow of the same fluid, making it easier for external pipes to be connected at the same position or in the same direction, thus improving the neatness of the external pipe arrangement.

[0045] Optionally, the filter assembly 21 includes a plurality of U-shaped filters; both ends of the U-shaped filters are open, the U-shaped filters are disposed in the outer sleeve 10, and the open ends are connected to the liquid passage 220.

[0046] In this embodiment, the U-shaped filter has more outer surface area (which can also be understood as an effective filtration surface), and the U-shaped filter can effectively extend into the bottom of the outer sleeve 10 to filter the fluid at various locations more quickly.

[0047] In addition, regarding the fixing of the U-shaped filter screen, this embodiment is provided with a fixing ring. The fixing ring is set in the liquid passage 220 and sleeved on the liquid outlet pipe 30. The fixing ring is provided with multiple through holes. One end of the U-shaped filter screen is correspondingly connected to one of the through holes. After the fluid in the outer sleeve 10 passes through the U-shaped filter screen, it flows out from the gap between the outer wall of the liquid outlet pipe 30 and the inner wall of the liquid passage 220.

[0048] Optionally, multiple U-shaped filters are arranged around the periphery of the liquid outlet pipe 30.

[0049] First, more U-shaped filters can speed up the filtration process. Second, as mentioned above, the outlet pipe 30 is used to discharge the flushing liquid during both forward and reverse rinsing, carrying away any debris that falls off the filter screens. It is understood that in this embodiment, the outlet pipe 30 is positioned between multiple U-shaped filters to ensure timely and rapid discharge of the flushing liquid after rinsing, preventing any leakage of debris.

[0050] Optionally, the liquid outlet tube 30 is located at one end inside the outer sleeve 10 and extends toward the end away from the support head 22, so as to be at least flush with the end of the U-shaped filter screen away from the support head 22; and / or, a blocking ring 221 is provided at the end of the support head 22 located inside the outer sleeve 10, one end of the blocking ring 221 extends toward the end away from the support head 22, so as to be at least flush with the end of the U-shaped filter screen away from the support head 22, and the blocking ring 221 surrounds all the U-shaped filters.

[0051] In this embodiment, the end of the liquid outlet pipe 30 and one end of the U-shaped filter screen are arranged in parallel to each other, so as to ensure that the rinsing liquid at the farthest end of the U-shaped filter screen is better discharged.

[0052] In addition, on the shaft of the liquid outlet pipe 30, the part of the liquid outlet pipe 30 located inside the outer sleeve 10 can have several liquid passage holes on the pipe wall, so that the attached substances that fall off from various positions of the U-shaped filter screen can be guided into the liquid outlet pipe 30 and discharged more quickly.

[0053] The extended baffle ring 221 can be understood as tubular. Fluid entering the outer sleeve 10 from the inlet 110 must pass through the end of the baffle ring 221 before moving towards the U-shaped filter screen. This lengthens the fluid's journey in the outer sleeve 10, allowing some impurities in the fluid to settle and reducing the amount of residue adhering to the filter screen.

[0054] Optionally, one end of the outer sleeve 10 is provided with an open opening; the support head 22 is provided at the open opening, and a liquid inlet gap is provided between the outer wall of the support head 22 and the inner wall of the outer sleeve 10, at least part of the liquid inlet gap is used to form the liquid inlet section 110.

[0055] Referring to the foregoing, the sleeve arrangement between the support head 22 and the outlet pipe 30 allows for a more concentrated arrangement of the inlet and outlet components of the filter element, improving overall compactness. In this embodiment, the open port serves as the inlet section 110, thus the inlet section 110, outlet section 120, and support head 22 are arranged in the same position, preferably coaxially. Therefore, their respective external pipes can be arranged in the same direction, achieving the aforementioned simplified pipe layout and compact structure.

[0056] Optionally, it also includes a sealing component 40, which is provided with a first channel 41, a second channel 42 and a third channel 43. The sealing component 40 covers the open opening and is connected to the support head 22 and the liquid outlet pipe 30 respectively. The first channel 41 is connected to the liquid inlet 110, the second channel 42 is connected to the liquid passage 220 of the support head 22, and the third channel 43 is connected to the liquid outlet pipe 30.

[0057] For example, the sealing component 40 includes an inner column, a middle column, and an outer column that are nested and connected in sequence. The inner column has a third through hole forming a third channel 43 in the axial direction. The middle column has at least one second through hole or a second arc-shaped through groove forming the second channel 42 in the axial direction. The outer column has at least one third through hole or a third arc-shaped through groove forming the first channel 41. In this way, the channels of the liquid passage 220, the liquid inlet 110, and the liquid outlet 120 are independent at the opening and do not affect each other.

[0058] Preferably, the aforementioned outer sleeve 10 and support head 22 are cylindrical.

[0059] Optionally, the system also includes a sealing element 50, with the sealing element 40 and the connection between the opening and the sealing element 40, the connection between the sealing element 40 and the support head 22, and the connection between the sealing element 40 and the liquid outlet pipe 30 each having a sealing element 50.

[0060] For example, seal 50 is a sealing ring. The sealing ring plays a role in sealing and preventing leakage at the connection between various components, which will not be elaborated here.

[0061] Those skilled in the art will understand that the steps, measures, and schemes in the various operations, methods, and processes discussed in this utility model can be alternated, modified, combined, or deleted. Furthermore, other steps, measures, and schemes in the various operations, methods, and processes discussed in this utility model can also be alternated, modified, rearranged, decomposed, combined, or deleted. Furthermore, the steps, measures, and schemes in the prior art that are similar to those disclosed in this utility model can also be alternated, modified, rearranged, decomposed, combined, or deleted.

[0062] 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", "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 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. Therefore, they should not be construed as limitations on this utility model.

[0063] The terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0064] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0065] In the description of this specification, specific features, structures, materials, or characteristics may be combined in any suitable manner in one or more embodiments or examples.

[0066] It should be understood that although the steps in the flowcharts of the accompanying figures are shown sequentially as indicated by the arrows, these steps are not necessarily executed in the order indicated by the arrows. Unless explicitly stated herein, there is no strict order restriction on the execution of these steps, and they can be executed in other orders. Moreover, at least some steps in the flowcharts of the accompanying figures may include multiple sub-steps or multiple stages. These sub-steps or stages are not necessarily completed at the same time, but can be executed at different times, and their execution order is not necessarily sequential, but can be performed alternately or in turn with other steps or at least some of the sub-steps or stages of other steps.

[0067] The above description is only a partial embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. An ultrafiltration filter cartridge, characterized in that, Includes an outer sleeve (10) and a filter element component (20); The filter element component (20) includes a filter assembly (21) and a support head (22). The support head (22) has a liquid passage (220) in the middle. The filter assembly (21) is disposed in the liquid passage (220) to filter the fluid passing through the liquid passage (220). The support head (22) is disposed in the outer sleeve (10), and one end of the liquid passage (220) is located in the outer sleeve (10), and the other end is located outside the outer sleeve (10). The outer sleeve (10) is provided with a liquid inlet (110) and a liquid outlet (120).

2. The ultrafiltration cartridge of claim 1, wherein, The liquid outlet section (120) includes a liquid outlet pipe (30), one end of which is disposed in the outer sleeve (10), and the other end extends out of the outer sleeve (10).

3. The ultrafiltration cartridge of claim 2, wherein, The liquid outlet pipe (30) passes through the liquid passage (220), and the filter assembly (21) is located at one end of the liquid passage (220) inside the outer sleeve (10). The gap between the liquid outlet pipe (30) and the liquid passage (220) has a liquid flow gap, and the filter assembly (21) is positioned at the liquid flow gap.

4. The ultrafiltration cartridge of claim 3, wherein, The filter assembly (21) includes multiple U-shaped filters; The U-shaped filter screen has open ends at both ends and is installed in the outer sleeve (10). The open ends are connected to the liquid passage (220).

5. The ultrafiltration cartridge of claim 4, wherein, Multiple U-shaped filters are arranged around the periphery of the liquid outlet pipe (30).

6. The ultrafiltration filter element according to claim 4, characterized in that, The liquid outlet tube (30) is located inside the outer sleeve (10) at one end and extends away from the support head (22) at the other end, so as to be at least flush with the end of the U-shaped filter screen away from the support head (22); And / or, A blocking ring (221) is provided at one end of the support head (22) located inside the outer sleeve (10). One end of the blocking ring (221) extends away from the support head (22) to be at least flush with the end of the U-shaped filter screen away from the support head (22). The blocking ring (221) surrounds all of the U-shaped filter screens.

7. The ultrafiltration cartridge of claim 3, wherein, The outer sleeve (10) has an open opening at one end; The support head (22) is disposed at the opening, and a liquid inlet gap is provided between the outer wall of the support head (22) and the inner wall of the outer sleeve (10), at least part of the liquid inlet gap is used to form the liquid inlet part (110).

8. The ultrafiltration cartridge of claim 7, wherein, It also includes a sealing element (40), which is provided with a first channel (41), a second channel (42) and a third channel (43). The sealing element (40) covers the opening and is connected to the support head (22) and the liquid outlet pipe (30) respectively. The first channel (41) is connected to the liquid inlet (110), the second channel (42) is connected to the liquid passage (220) of the support head (22), and the third channel (43) is connected to the liquid outlet pipe (30).

9. The ultrafiltration cartridge of claim 8, wherein, It also includes a sealing element (50), which is provided at the connection between the sealing element (40) and the opening, the connection between the sealing element (40) and the support head (22), and the connection between the sealing element (40) and the liquid outlet pipe (30).

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