Compact ultrafiltration device

Abstract

The utility model relates to the technical field of filtering equipment, in particular to a compact ultrafiltration device, which comprises a box body, a filtering component, a membrane stack I and a membrane stack II which are symmetrically distributed in the box body, the first pipeline is positioned at the bottom of the filtering assembly and is used for respectively introducing raw water into the membrane stack I and the membrane stack II during filtering or discharging cleaning water passing through the membrane stack I and the membrane stack II during backwashing; the second pipeline is positioned at the top of the filtering assembly and is used for discharging produced water passing through the membrane stack I and the membrane stack II during filtering or introducing backwashing water into the membrane stack I and the membrane stack II during backwashing; the third pipeline is located at the bottom of the filtering assembly and used for introducing compressed air into the bottoms of the first membrane stack and the second membrane stack so as to scrub air in the first membrane stack and the second membrane stack, and due to the design of the first pipeline, the second pipeline and the third pipeline, water distribution is more uniform, and the ultrafiltration effect is further improved.

Description

Technical Field

[0001] The utility model relates to the technical field of filtering equipment, in particular to a compact ultrafiltration device. Background Art

[0002] With the gradual maturity of ultrafiltration membrane technology, ultrafiltration membranes are increasingly used in various water treatment systems.

[0003] Existing ultrafiltration devices, such as the ultrafiltration device for purified water preparation disclosed in Patent No. CN 209890301 U, have a technical solution that includes a mounting frame and a plurality of ultrafiltration tanks fixed to the mounting frame. The mounting frame is in the shape of a rectangular frame and includes a crossbeam and a column. The ultrafiltration tanks are arranged along the length of the column. The ultrafiltration tanks are divided into two groups, each group arranged along the length of the mounting frame; two rows of ultrafiltration tanks in the same group are staggered on both sides of the crossbeam; and fixed components are provided between the crossbeam of the mounting frame and the ultrafiltration tanks. While occupying the same space, the utility model is provided with more ultrafiltration tanks and the ultrafiltration tanks are arranged compactly, which greatly improves the water treatment capacity of the ultrafiltration device and can meet the needs of preparing large quantities of purified water.

[0004] The above-mentioned ultrafiltration device has technical problems of uneven water distribution to varying degrees in water supply distribution, water production distribution, and backwash water distribution. If the water distribution is uneven, the flux of membrane components at different positions of the ultrafiltration membrane will be uneven, which will have a significant adverse impact on the operating effect. At the same time, the operating cost of the ultrafiltration membrane stack is also high. Summary of the Invention

[0005] The purpose of the utility model is to solve the above-mentioned shortcomings in the prior art and to propose a compact ultrafiltration device.

[0006] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0007] Design a compact ultrafiltration device, including a box,

[0008] The filtration component includes a membrane stack 1 and a membrane stack 2, which are symmetrically distributed in the box;

[0009] The first pipeline is located at the bottom of the filter assembly and is used to pass raw water into the membrane stack 1 and the membrane stack 2 during filtration or to discharge the cleaning water passing through the membrane stack 1 and the membrane stack 2 during backwashing;

[0010] A second pipeline is located at the top of the filter assembly and is used to discharge the produced water passing through the membrane stack 1 and the membrane stack 2 during filtration or to pass the backwash water into the membrane stack 1 and the membrane stack 2 during backwashing;

[0011] The third pipeline is located at the bottom of the filter assembly and is used to introduce compressed air into the bottom of the membrane stack 1 and the membrane stack 2 to achieve air scrubbing inside the membrane stack 1 and the membrane stack 2.

[0012] Furthermore, the first pipeline includes an intermediate pipeline 1, a side pipeline 1 connecting the intermediate pipeline 1 and the membrane stack 1, and a side pipeline 2 connecting the intermediate pipeline 1 and the membrane stack 2.

[0013] Furthermore, the intermediate pipeline is connected to a raw water inlet.

[0014] Furthermore, the intermediate pipeline is connected to a backwash discharge port.

[0015] Furthermore, the second pipeline includes an intermediate pipeline 2, a side pipeline 3 connecting the intermediate pipeline 2 and the membrane stack 1, and a side pipeline 4 connecting the intermediate pipeline 2 and the membrane stack 2.

[0016] Furthermore, the intermediate pipeline 2 is connected to a produced water outlet.

[0017] Furthermore, the intermediate pipeline 2 is connected to a backwash water inlet.

[0018] Furthermore, the third pipeline includes an intermediate pipeline three, a side pipeline five connecting the intermediate pipeline three and the membrane stack one, and a side pipeline six connecting the intermediate pipeline three and the membrane stack two.

[0019] Furthermore, the intermediate pipeline three is provided with a compressed air inlet.

[0020] The utility model proposes a compact ultrafiltration device, which has the following beneficial effects:

[0021] The utility model distributes the membrane stack 1 and the membrane stack 2 symmetrically in the box body, and makes the water distribution more uniform through the design of the first pipeline, the second pipeline and the third pipeline, thereby further improving the ultrafiltration effect. By controlling the water inlet flow rate and flow rate, it can ensure that the liquid on the surface of the ultrafiltration membrane is evenly distributed, reducing the risk of concentration polarization and membrane contamination.

[0022] By optimizing the structural design, maximum utilization within a limited space is achieved. This design not only reduces the footprint, but also reduces construction and operating costs. The compact structure also improves the mobility and flexibility of the equipment, making it suitable for a variety of application scenarios. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is a schematic diagram of the structure of the utility model;

[0024] Figure 2 This is a top view of the utility model; DETAILED DESCRIPTION

[0025] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0026] Example, see Figure 1-2 A compact ultrafiltration device, comprising a housing 1,

[0027] The filter assembly 2 includes a membrane stack 1 201 and a membrane stack 202, which are symmetrically distributed in the housing 1;

[0028] The first pipeline 3 is located at the bottom of the filter assembly 2 and is used to pass raw water into the membrane stack 1 201 and the membrane stack 2 202 during filtration or to discharge the cleaning water passing through the membrane stack 1 201 and the membrane stack 2 202 during backwashing;

[0029] The second pipeline 4 is located at the top of the filter assembly 2 and is used to discharge the produced water passing through the membrane stack 1 201 and the membrane stack 2 202 during filtration or to pass the backwash water into the membrane stack 1 201 and the membrane stack 2 202 during backwashing;

[0030] The third pipeline 5 is located at the bottom of the filter assembly 2 and is used to pass compressed air into the bottom of the membrane stack 1 201 and the membrane stack 2 202 to achieve air scrubbing inside the membrane stack 1 201 and the membrane stack 2 202 .

[0031] The utility model distributes the membrane stack 1 201 and the membrane stack 2 202 symmetrically in the box body, and makes the water distribution more uniform through the design of the first pipeline 3, the second pipeline 4 and the third pipeline 5, further improving the ultrafiltration effect. By controlling the water flow rate and flow rate, it can ensure that the liquid on the surface of the ultrafiltration membrane is evenly distributed, reducing the risk of concentration polarization and membrane contamination.

[0032] By optimizing the structural design, the maximum utilization within the limited space is achieved. This design not only reduces the floor space, but also reduces the construction and operation costs. The compact structure also improves the mobility and flexibility of the equipment, making it suitable for a variety of application scenarios.

[0033] In an optional embodiment of the present invention, the first pipeline 3 includes an intermediate pipeline 1 301 , a side pipeline 1 302 connecting the intermediate pipeline 1 301 and the membrane stack 1 201 , and a side pipeline 2 303 connecting the intermediate pipeline 1 301 and the membrane stack 2 202 .

[0034] In an optional embodiment of the present invention, the intermediate pipeline 1 301 is connected to a raw water inlet 304, and the raw water inlet 304 is provided with a pneumatic valve; during filtration, the raw water enters the intermediate pipeline 1 301 through the raw water inlet 304, and enters the membrane stack 1 201 and the membrane stack 2 202 through the side pipeline 1 302 and the side pipeline 2 303 respectively for filtration.

[0035] In an optional embodiment of the present invention, the intermediate pipeline 1 301 is connected to the backwash discharge port 305, and the backwash discharge port 305 is provided with a pneumatic valve; during backwashing, the backwash water enters the membrane stack 1 201 and the membrane stack 2 202 from the top of the membrane stack 1 201 and the membrane stack 2 202 respectively, flows to the bottom of the membrane stack 1 201 and the membrane stack 2 202, and enters the intermediate pipeline 1 301 through the side pipeline 1 302 and the side pipeline 2 303 respectively, and the cleaning water is discharged through the backwash discharge port 305.

[0036] In an optional embodiment of the present invention, the second pipeline 4 includes an intermediate pipeline 2 401 , a side pipeline 3 402 connecting the intermediate pipeline 2 401 and the membrane stack 1 201 , and a side pipeline 403 connecting the intermediate pipeline 2 401 and the membrane stack 2 202 .

[0037] In an optional embodiment of the present invention, the intermediate pipeline 2 401 is connected to the produced water outlet 404, and the produced water outlet 404 is provided with a pneumatic valve; during filtration, the produced water filtered by the membrane stack 1 201 and the membrane stack 2 202 respectively enters the side pipeline 3 402 and the side pipeline 4 403, and then flows into the intermediate pipeline 2 401, and finally flows out at the produced water outlet 404.

[0038] In an optional embodiment of the present invention, the intermediate pipeline 2 401 is connected to the backwash water inlet 405, and the backwash water inlet 405 is provided with a pneumatic valve; during backwashing, the backwash water enters the intermediate pipeline 2 401 through the backwash water inlet 405, and enters the membrane stack 1 201 and the membrane stack 2 202 through the side pipeline 3 402 and the side pipeline 4 403 respectively for reverse cleaning.

[0039] In an optional embodiment of the present invention, the third pipeline 5 includes an intermediate pipeline three 501, a side pipeline five 502 connecting the intermediate pipeline three 501 and the membrane stack one 201, and a side pipeline six 503 connecting the intermediate pipeline three 501 and the membrane stack two 202.

[0040] In an optional embodiment of the present invention, the intermediate pipeline three 501 is provided with a compressed air inlet 504, and the compressed air inlet 504 is provided with a pneumatic valve; during air scrubbing, compressed air enters the intermediate pipeline three 501 through the compressed air inlet 504, and enters the membrane stack one 201 and the membrane stack two 202 through the side pipeline five 502 and the side pipeline six 503 respectively for air scrubbing.

[0041] Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are illustrative and cannot be understood as limitations on the present invention. Ordinary technicians in this field can change, modify, replace and modify the above embodiments within the scope of the present invention.

[0042] In the description of this specification, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the technical solutions of this patent and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on this patent application.

[0043] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be understood to indicate or imply relative importance or implicitly specify the number of the technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of such features. In the description of this patent application, "plurality" means at least two, such as two, three, etc., unless otherwise specifically defined.

[0044] In this specification, unless otherwise specified or limited, the terms "mounted," "connected," "connect," "fixed," etc. should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection or electrical connection; direct connection or indirect connection through an intermediate medium; internal communication between two components or interaction between two components, unless otherwise specified. Those skilled in the art will understand the specific meanings of the above terms in this specification based on specific circumstances.

[0045] In this specification, unless otherwise expressly specified or limited, when a first feature is "above" or "below" a second feature, it can mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediary. Furthermore, when a first feature is "above," "above," or "above" a second feature, it can mean that the first feature is directly above or diagonally above the second feature, or simply means that the first feature is at a higher level than the second feature. When a first feature is "below," "below," or "below" a second feature, it can mean that the first feature is directly below or diagonally below the second feature, or simply means that the first feature is at a lower level than the second feature.

[0046] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art can combine and combine different embodiments or examples described in this specification and features of different embodiments or examples without contradiction.

[0047] Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limitations on the present invention. Ordinary technicians in this field can change, modify, replace and modify the above embodiments within the scope of the present invention.

Claims

1. A compact ultrafiltration device, comprising a housing (1), characterized in that: It comprises a filter assembly (2), comprising a membrane stack 1 (201) and a membrane stack 2 (202), which are symmetrically distributed in the box (1); a first pipeline (3), which is located at the bottom of the filter assembly (2) and is used to pass raw water into the membrane stack 1 (201) and the membrane stack 2 (202) during filtration or to discharge the cleaning water passing through the membrane stack 1 (201) and the membrane stack 2 (202) during backwashing; a second pipeline (4), which is located at the top of the filter assembly (2) and is used to discharge the produced water passing through the membrane stack 1 (201) and the membrane stack 2 (202) during filtration or to pass the backwash water into the membrane stack 1 (201) and the membrane stack 2 (202) during backwashing; The third pipeline (5) is located at the bottom of the filter assembly (2) and is used to pass compressed air into the bottom of the membrane stack 1 (201) and the membrane stack 2 (202) to achieve air scrubbing inside the membrane stack 1 (201) and the membrane stack 2 (202).

2. The ultrafiltration device according to claim 1, characterized in that: The first pipeline (3) includes an intermediate pipeline 1 (301), a side pipeline 1 (302) connecting the intermediate pipeline 1 (301) and the membrane stack 1 (201), and a side pipeline 2 (303) connecting the intermediate pipeline 1 (301) and the membrane stack 2 (202).

3. The ultrafiltration device according to claim 2, characterized in that: The intermediate pipeline 1 (301) is connected to a raw water inlet (304).

4. The ultrafiltration device according to claim 2, characterized in that: The intermediate pipeline 1 (301) is connected to a backwash discharge port (305).

5. The ultrafiltration device according to claim 1, characterized in that: The second pipeline (4) includes an intermediate pipeline 2 (401), a side pipeline 3 (402) connecting the intermediate pipeline 2 (401) and the membrane stack 1 (201), and a side pipeline 4 (403) connecting the intermediate pipeline 2 (401) and the membrane stack 2 (202).

6. The ultrafiltration device according to claim 5, characterized in that: The intermediate pipeline 2 (401) is connected to a produced water outlet (404).

7. The ultrafiltration device according to claim 5, characterized in that: The second intermediate pipeline (401) is connected to a backwash water inlet (405).

8. The ultrafiltration device according to claim 1, characterized in that: The third pipeline (5) includes an intermediate pipeline three (501), a side pipeline five (502) connecting the intermediate pipeline three (501) and the membrane stack one (201), and a side pipeline six (503) connecting the intermediate pipeline three (501) and the membrane stack two (202).

9. The ultrafiltration device according to claim 8, characterized in that: The intermediate pipeline three (501) is provided with a compressed air inlet (504).

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