A micro-porous membrane filter

Abstract

The utility model discloses a microporous membrane filter, including frame, lower casing, a plurality of microporous membrane filter core, socket plate, upper casing, quick -witted hoop, feed port and discharge port. Set up socket plate and fix a plurality of microporous membrane filter core on lower casing, after the raw liquid of waiting for filtering enters lower casing, a plurality of microporous membrane filter core carry out synchronous filtration to the raw liquid of waiting for filtering, and the pure liquid after filtration flows into upper casing and is drawn away, and the impurity that has not passed through filtration remains on the microporous membrane filter core. The present application has solved the problem that the liquid of waiting for filtering is more easy to not pass through the filtration of microporous membrane filter core and directly discharge from the blowdown, leads to waste the liquid of waiting for filtering and low filtration efficiency, and a plurality of microporous membrane filter core synchronous filtration realizes quick synchronous filtration, and improves filtration efficiency.

Description

Technical Field

[0001] This utility model relates to the field of filter technology, specifically a microporous membrane filter. Background Technology

[0002] A microporous membrane filter is a filtration device based on membrane separation technology. The main body is made of 304 or 316L stainless steel in a cylindrical structure. The core component is a microporous membrane filter element, which can filter out particles and bacteria larger than 0.1 μm in liquids and gases.

[0003] For example, Chinese Patent No. CN220432450U, published on February 2, 2024, discloses a microporous membrane sterilization filter, including a support, a drain pipe, a sewage pipe, a filter cylinder, a microporous membrane filter element, an antibacterial ceramic frame, a sewage outlet, a mounting plate, a water inlet, a water pump, and a water inlet pipe. The drain pipe is installed at the rear of the bottom end of the support, the sewage pipe is installed at the front of the bottom end of the support, the filter cylinder is installed at the top of the support, the microporous membrane filter element is installed on the drain pipe through the top of the support, the antibacterial ceramic frame is installed on the side end of the microporous membrane filter element, the sewage outlet is connected to the sewage pipe through the top of the support, the mounting plate is fixed to the top of the filter cylinder, the water inlet is opened at the front of the mounting plate, the water pump is installed at the top of the mounting plate, and the water inlet pipe is connected to the water inlet through the water pump. This invention solves the problem that microporous membrane filter cartridges in microporous membrane filters generally have filter holes and grooves, which inevitably lead to the accumulation of residual bacteria after long-term use, creating safety hazards.

[0004] As can be seen from the above patents, the inlet and outlet of this filter are opposite each other during use. This means that the liquid to be filtered is easily discharged directly from the outlet without passing through the microporous membrane filter element, resulting in waste of the liquid. Furthermore, the filter only has one microporous membrane filter element, leading to low filtration efficiency. Therefore, this utility model provides a microporous membrane filter to solve the above problems. Summary of the Invention

[0005] The purpose of this invention is to address the shortcomings of existing technologies by providing a microporous membrane filter.

[0006] To achieve the above objectives, this utility model provides the following technical solution: A microporous membrane filter includes a frame. The lower housing is used for feeding and fixing the raw liquid to be filtered, and the lower housing is welded to the upper part of the frame; A plurality of microporous membrane filter elements are provided, wherein the microporous membrane filter elements are used to filter the raw liquid to be filtered, and the microporous membrane filter elements are fixedly installed on the upper part of the lower housing. A socket plate is used to fix a plurality of microporous membrane filter elements to the lower housing, and the socket plate is fixedly connected above the plurality of microporous membrane filter elements; The upper housing is used to store the filtered pure liquid, and the upper housing is sealed to the upper part of the lower housing by quick-release clamps and O-rings; The microporous membrane filter element includes a filter element base, a filter element skeleton, a microporous membrane filter element body, and a filter element cover arranged sequentially from bottom to top and coaxially. The outer diameter of the filter element base is larger than the outer diameter of the filter element skeleton. The outer wall of the microporous membrane filter element body is close to the inner wall of the filter element skeleton. The filter element cover is rotatably connected to and covers the upper part of the inner wall of the filter element skeleton.

[0007] Preferably, the microporous membrane filter element is made of food-grade polypropylene, and the length of the microporous membrane filter element body is 0.5 m, with a micropore diameter of 1~3 μm.

[0008] Preferably, the filter core frame includes several horizontal frames and several vertical frames arranged alternately from top to bottom. The horizontal frames are evenly distributed with equal vertical spacing in the horizontal direction, and the vertical frames are evenly connected in layers with equal horizontal spacing in the vertical direction between the horizontal frames. The center of each layer of the vertical frames is located on the same vertical line as the horizontal center of several vertical frames in the adjacent layer.

[0009] Preferably, the bottom of the lower housing is hollow and arc-shaped, and a circular bottom shell is provided above the bottom of the lower housing. A fixing rod is provided at the axis of the circular bottom shell. The fixing rod penetrates the circular bottom shell downward and is fixed to the circular bottom shell from below by screws. Five circular through holes are evenly provided along the axis at an angle of 72º. The inner wall of the through holes fits the outer wall of the filter core skeleton.

[0010] Preferably, a fixing hole is provided at the center of the socket plate, the fixing rod passes through the fixing hole upward and the socket plate is fixed to the round bottom shell from above by a screw through the fixing hole, and five circular insertion holes are evenly arranged along the center of the socket plate at an angle of 72º.

[0011] Preferably, the bottom of the lower housing and the top of the upper housing are respectively provided with a feed inlet and a discharge outlet. The feed inlet is connected downward to a feed pipe, the discharge outlet is connected downward to the bottom of the upper housing via a hose, and the discharge outlet is connected upward to a miniature self-priming water pump via a discharge pipe.

[0012] The beneficial effects of this utility model are: A socket plate is used to fix several microporous membrane filter elements to the lower housing. After the raw liquid to be filtered enters the lower housing, the several microporous membrane filter elements simultaneously filter the raw liquid. The filtered pure liquid flows into the upper housing and is then pumped away. Impurities that do not pass through the filter remain on the microporous membrane filter elements. This application solves the problem that the liquid to be filtered is easily discharged directly from the drain port without passing through the microporous membrane filter elements, resulting in waste of the liquid to be filtered and low filtration efficiency. Simultaneous filtration by several microporous membrane filter elements achieves rapid synchronous filtration and improves filtration efficiency. Attached Figure Description

[0013] To more clearly illustrate the embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings in the following description are merely exemplary, and those skilled in the art can derive other embodiments based on the provided drawings without creative effort.

[0014] The structures, proportions, sizes, etc. illustrated in this specification are only for the purpose of assisting those skilled in the art in understanding and reading the content disclosed herein, and are not intended to limit the conditions under which the present invention can be implemented. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in the proportions, or adjustments to the size, without affecting the effects and objectives that the present invention can produce, should still fall within the scope of the technical content disclosed in the present invention.

[0015] Figure 1 This is a front view structural diagram of the present utility model; Figure 2 This is a front view structural diagram of the microporous membrane filter element of this utility model; Figure 3 This is a partial structural schematic diagram of the microporous membrane filter element of this utility model; Figure 4 This is a top view of the lower shell structure of this utility model; As shown in the figure: 1. Frame; 2. Lower housing; 21. Round bottom shell; 22. Fixing rod; 23. Through hole; 3. Microporous membrane filter element; 31. Filter element bottom; 32. Filter element frame; 321. Horizontal frame; 322. Longitudinal frame; 33. Microporous membrane filter element body; 34. Filter element cover; 4. Socket plate; 5. Upper housing; 6. Quick-release clamp; 7. Feed port; 8. Discharge port. Detailed Implementation

[0016] 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. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can typically be arranged and designed in various different configurations.

[0017] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0018] It should be noted that, where there is no conflict, the embodiments and features in the embodiments of this utility model can be combined with each other.

[0019] It should be noted that similar labels and letters are likely to represent similar items in the following figures. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0020] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "front," "rear," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the utility model product is in use, or the orientation or positional relationship commonly understood by those skilled in the art. They are only used 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. In addition, the terms "first," "second," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0021] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" 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 mechanical connection or an electrical 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.

[0022] Reference Figure 1-4The present invention discloses a microporous membrane filter, comprising a frame 1, a lower housing 2, several microporous membrane filter elements 3, a socket plate 4, an upper housing 5, a quick-release clamp 6, a feed inlet 7, and a discharge outlet 8. The lower housing 2, used for feeding the raw liquid to be filtered and fixing the microporous membrane filter element 3, is welded to the top of the frame 1. Several microporous membrane filter elements 3, used for filtering the raw liquid to be filtered, are fixedly installed on the top of the lower housing 2. The microporous membrane filter element 3 includes a filter element base 31, a filter element frame 32, a microporous membrane filter element body 33, and a filter element cover 34, arranged sequentially from bottom to top and coaxially. The outer diameter of the filter element base 31 is larger than the outer diameter of the filter element frame 32, so that the microporous membrane filter element 3 can be pressed onto the lower housing 2 by pressing the filter element base 31. The outer wall of the microporous membrane filter element body 33 is close to the inner wall of the filter element frame 32, so that the filter element frame 32 supports and fixes the microporous membrane filter element body 33. The filter element cover 34 is rotatably connected to and covers the upper part of the inner wall of the filter element frame 32, so that the raw liquid to be filtered is sealed inside the microporous membrane filter element body 33. The socket plate 4, used to fix several microporous membrane filter elements 3 to the lower housing 2, is fixedly connected above the several microporous membrane filter elements 3; the upper housing 5, used to store the filtered pure liquid, is sealed to the upper part of the lower housing 2 by quick-release clamps 6 and O-rings.

[0023] In an optional embodiment, the microporous membrane filter element 3 is made of food-grade polypropylene, the length of the microporous membrane filter element body 33 is 0.5 m, and the micropore diameter is 1~3 μm. The microporous membrane filter element body 33 filters impurities in the raw liquid to be filtered.

[0024] In an optional embodiment, the filter core frame 32 includes a plurality of transverse frames 321 and a plurality of longitudinal frames 322 arranged alternately from top to bottom to support and fix the microporous membrane filter core body 33. The transverse frames 321 are evenly distributed in the transverse direction with equal longitudinal spacing, and the longitudinal frames 322 are evenly connected in the transverse direction with equal transverse spacing in the longitudinal layers. The center of each layer of longitudinal frames 322 is located on the same vertical line as the transverse center of a plurality of longitudinal frames 322 in the adjacent layer to enhance the support and fixation.

[0025] In an optional embodiment, the bottom of the lower housing 2 is hollow and arc-shaped. A circular bottom shell 21 is provided above the bottom of the lower housing 2. A fixing rod 22 for fixing is provided at the axis of the circular bottom shell 21. The fixing rod 22 penetrates downward through the circular bottom shell 21 and is fixed to the circular bottom shell 21 from below by screws. Five circular through holes 23 are evenly provided along the axis at an angle of 72º. The inner wall of the through holes 23 fits the outer wall of the filter element frame 32 so that the filter element frame 32 can pass through the through holes 23 and be fixed.

[0026] In an optional embodiment, a fixing hole is provided at the axis of the socket plate 4, the fixing rod 22 passes through the fixing hole upward and the socket plate 4 is fixed to the round bottom shell 21 from above by screws through the fixing hole, and five circular insertion holes are evenly and symmetrically arranged along the axis of the socket plate 4 at an angle of 72º.

[0027] In this embodiment, five microporous membrane filter elements 3 are first passed through the five circular insertion holes of the socket plate 4, and then the fixing rod 22 passes through the fixing hole of the socket plate 4 to press the five microporous membrane filter elements 3 onto the lower housing 2 by pressing the filter element bottom 31. At the same time, the axis of the five microporous membrane filter elements 3 is aligned with the axis of the five circular through holes 23 of the circular bottom shell 21 of the lower housing 2, so that the raw liquid to be filtered can enter the five microporous membrane filter elements 3 through the five circular through holes 23 for synchronous filtration. Finally, the socket plate 4 is fixed to the circular bottom shell 21 from above by screws through the fixing hole.

[0028] In an optional embodiment, the bottom of the lower housing 2 and the top of the upper housing 5 are respectively provided with an inlet 7 and an outlet 8. The raw liquid to be filtered is pressurized and enters the lower housing 2 through the inlet 7 via the inlet pipe (not shown in the figure) for filtration. The outlet 8 is connected downward to the bottom of the upper housing 5 via a hose so that the purified liquid filtered at the bottom of the upper housing 5 can be discharged from the outlet 8 through the hose. The outlet 8 is connected upward to a miniature self-priming water pump (not shown in the figure) via a discharge pipe. The working pressure of the miniature self-priming water pump is ≤0.3 MPa. The miniature self-priming water pump draws the purified liquid filtered at the bottom of the upper housing 5 through the outlet 8.

[0029] The working principle and usage process of this utility model are as follows: Installation and commissioning of the microporous membrane filter: First, five microporous membrane filter elements 3 are passed through the five circular insertion holes of the socket plate 4. Then, the fixing rod 22 passes through the fixing holes of the socket plate 4 to press the five microporous membrane filter elements 3 onto the lower housing 2 by pressing the filter element bottom 31. At the same time, the axis of the five microporous membrane filter elements 3 is aligned with the axis of the five circular through holes 23 of the circular bottom shell 21 of the lower housing 2. Then, the socket plate 4 is fixed to the circular bottom shell 21 from above by screws through the fixing holes. Finally, the upper housing 5 is sealed and connected to the upper part of the lower housing 2 by quick-release clamps 6 and O-rings.

[0030] The working process of the microporous membrane filter is as follows: The raw liquid to be filtered is pressurized and enters the lower shell 2 through the feed pipe from the feed port 7. It then enters the five microporous membrane filter elements 3 through the five circular through holes 23 for synchronous filtration. The pressurized raw liquid to be filtered is forced into the microporous membrane filter element body 33 for filtration. The filtered pure liquid flows through the outer wall of the microporous membrane filter element body 33 into the bottom of the upper shell 5 and is then extracted by a micro self-priming water pump through the hose, the discharge port 8 and the discharge pipe in sequence. Impurities that have not passed through filtration remain on the microporous membrane filter element body 33.

[0031] Of course, the embodiments described in this specific implementation are all preferred embodiments of this utility model, and are not intended to limit the scope of protection of this utility model. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this utility model should be covered within the scope of protection of this utility model.

Claims

1. A microporous membrane filter, comprising a frame (1), The lower housing (2) is used for feeding and fixing the raw liquid to be filtered, and the lower housing (2) is welded to the top of the frame (1); Its features are: A plurality of microporous membrane filter elements (3) are provided, wherein the microporous membrane filter elements (3) are used to filter the original liquid to be filtered, and the microporous membrane filter elements (3) are fixedly installed above the lower housing (2). The socket plate (4) is used to fix a plurality of microporous membrane filter elements (3) onto the lower housing (2), and the socket plate (4) is fixedly connected above the plurality of microporous membrane filter elements (3); The upper housing (5) is used to store the filtered pure liquid. The upper housing (5) is sealed to the upper part of the lower housing (2) by a quick-release clamp (6) and an O-ring. The microporous membrane filter element (3) includes a filter element core bottom (31), a filter element skeleton (32), a microporous membrane filter element body (33), and a filter element cover (34) arranged sequentially from bottom to top and coaxially. The outer diameter of the filter element core bottom (31) is larger than the outer diameter of the filter element skeleton (32). The outer wall of the microporous membrane filter element body (33) is close to the inner wall of the filter element skeleton (32). The filter element cover (34) is rotatably connected to and covers the upper part of the inner wall of the filter element skeleton (32).

2. A microporous membrane filter according to claim 1, characterized in that: The microporous membrane filter element (3) is made of food-grade polypropylene. The length of the microporous membrane filter element body (33) is 0.5 m, and the micropore diameter is 1~3 μm.

3. A microporous membrane filter according to claim 1, characterized in that: The filter core frame (32) includes several horizontal frames (321) and several vertical frames (322) arranged alternately from top to bottom. The horizontal frames (321) are evenly distributed horizontally with equal vertical spacing. The vertical frames (322) are evenly connected vertically in layers with equal horizontal spacing between the horizontal frames (321). The center of each layer of the vertical frames (322) is on the same vertical line as the horizontal center of several vertical frames (322) in the adjacent layer.

4. A microporous membrane filter according to claim 1, characterized in that: The bottom of the lower housing (2) is hollow arc-shaped. A round bottom shell (21) is provided above the bottom of the lower housing (2). A fixing rod (22) is provided at the axis of the round bottom shell (21). The fixing rod (22) penetrates the round bottom shell (21) downward and is fixed to the round bottom shell (21) from below by screws. Five circular through holes (23) are evenly provided along the axis of the round bottom shell (21) at an angle of 72º. The inner wall of the through hole (23) is attached to the outer wall of the filter core skeleton (32).

5. A microporous membrane filter according to claim 4, characterized in that: A fixing hole is provided at the center of the socket plate (4). The fixing rod (22) passes through the fixing hole upward and the socket plate (4) is fixed to the round bottom shell (21) from above by a screw through the fixing hole. Five circular insertion holes are evenly arranged along the center of the socket plate (4) at an angle of 72º.

6. A microporous membrane filter according to claim 1, characterized in that: The bottom of the lower housing (2) and the top of the upper housing (5) are respectively provided with a feed inlet (7) and a discharge outlet (8). The feed inlet (7) is connected downward to a feed pipe, and the discharge outlet (8) is connected downward to the bottom of the upper housing (5) through a hose. The discharge outlet (8) is connected upward to a micro self-priming water pump through a discharge pipe.

Images