Anti-blocking ultrafiltration membrane assembly

Abstract

The utility model discloses an anti-blocking ultrafiltration membrane component which comprises an ultrafiltration membrane shell, an inlet end cover, an outlet end cover, an ultrafiltration membrane group and a front filtering module, and the inlet end cover and the outlet end cover are fixed on two sides of the ultrafiltration membrane shell; the ultrafiltration module comprises a central tube, an ultrafiltration membrane wire and an ultrafiltration membrane cover which are fixed through sealing glue; a water inlet port is formed in the top of the central pipe, and a plurality of water through holes are formed in the circumference of the central pipe; the front filter module is arranged between the ultrafiltration membrane group and the inlet end cover, the front filter module comprises a front filter element, a first front end cover and a second front end cover, a first water outlet column is arranged in the middle of the second front end cover, the first water outlet column is inserted into a water inlet port of the central pipe, and the first water outlet column and the water inlet port are in close fit. According to the utility model, the front filter element is arranged between the ultrafiltration membrane group and the water inlet interface, and large-particle impurities such as silt are filtered by using activated carbon, so that the rate of blocking the membrane filaments by dirt can be reduced, and the service life of the ultrafiltration membrane filaments is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of purification equipment, in particular to an anti-clogging ultrafiltration membrane component. Background Art

[0002] Ultrafiltration membranes are used as artificial permeable membranes in the ultrafiltration process. They are generally made from polymer materials such as cellulose acetate, cellulose acetate esters, polyethylene, polysulfone, and polyamide. They are typically prefabricated into various types of membrane modules, including tubular, plate-type, spiral, and capillary modules. Multiple modules are then assembled together to increase the filtration area and facilitate maintenance.

[0003] When the ultrafiltration membrane assembly is filtering, the water sometimes contains large particles of impurities such as mud and sand. After long-term use, the mud and sand will cause blockage or damage to the membrane fibers, reducing the service life and filtration effect of the membrane fibers, causing the membrane assembly to be unable to continue to be used, resulting in economic losses. Utility Model Content

[0004] In order to solve the above problems, the utility model provides an anti-clogging ultrafiltration membrane component, which can effectively isolate mud and sand and prevent the membrane fibers from being blocked and scrapped.

[0005] To this end, the technical solution of the present invention is: a blockage-proof ultrafiltration membrane assembly, comprising an ultrafiltration membrane shell, an inlet end cover, an outlet end cover, an ultrafiltration membrane group and a pre-filter module, the inlet end cover and the outlet end cover are fixed on both sides of the ultrafiltration membrane shell; the ultrafiltration module comprises a central tube, an ultrafiltration membrane wire and an ultrafiltration membrane cover, and the three are fixed by sealing glue; a water inlet port is provided at the top of the central tube, and a plurality of water holes are provided on the circumference of the central tube; the pre-filter module is placed between the ultrafiltration membrane group and the inlet end cover, the pre-filter module comprises a pre-filter element, a first pre-end end cover and a second pre-end end cover, a first water outlet column is provided in the middle of the second pre-end end cover, the first water outlet column is inserted into the water inlet port of the central tube, and the two are tightly matched; a water inlet interface is provided at the inlet end cover, the water inlet interface is connected to the outside of the pre-filter element, and the middle of the pre-filter element is connected to the central tube through the first water outlet column; a water outlet interface is provided on the outlet end cover, and the water outlet interface is connected to the water outlet hole inside the ultrafiltration membrane wire.

[0006] On the basis of the above scheme and as a preferred scheme of the above scheme: the pre-filter element is a hollow cylindrical structure, with non-woven fabrics on the inside and outside, and activated carbon filler in the middle.

[0007] On the basis of the above solution and as a preferred solution of the above solution: the water inlet interface is connected to the outer circumference of the pre-filter element to form a first water inlet channel.

[0008] On the basis of the above solution and as a preferred solution of the above solution: the second front end cover is tightly combined with the interior of the ultrafiltration membrane shell to block the prefiltration area and the ultrafiltration area.

[0009] On the basis of the above scheme and as a preferred scheme of the above scheme: the middle of the pre-filter is connected to the first water outlet column, and the first water outlet column is tightly connected to the central tube through a sealing ring to form a second water inlet channel.

[0010] On the basis of the above scheme and as a preferred scheme of the above scheme: the outer side of the ultrafiltration membrane cover is tightly fitted with the inner wall of the outlet end cover, and the end face of the ultrafiltration membrane cover is provided with a water outlet hole of the ultrafiltration membrane wire, which is connected to the water outlet interface to form a water outlet channel.

[0011] On the basis of the above scheme and as a preferred scheme of the above scheme: a flushing port is provided on the side of the outlet end cover, the flushing port is located on the inner side of the ultrafiltration membrane cover, and is connected to the ultrafiltration membrane shell to form a flushing channel.

[0012] During use, raw water flows into the pre-filtration area from the water inlet interface of the inlet end cover, enters from the circumferential surface of the pre-filter element, and the water after coarse filtration by activated carbon flows into the central tube from the first water outlet column, and then flows out from the water hole of the central tube, enters the inner side of the membrane fiber from the outside, and then flows out from the water outlet hole of the ultrafiltration membrane cover, and finally flows out from the water outlet interface.

[0013] Compared with the prior art, the beneficial effects of the present invention are:

[0014] A pre-filter element is set between the ultrafiltration membrane group and the water inlet interface, and activated carbon is used to filter out large particles of impurities such as mud and sand. The water after coarse filtration enters the ultrafiltration membrane wire for further filtration, which can reduce the rate at which the membrane wire is blocked by dirt, thereby extending the service life of the ultrafiltration membrane wire. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a structural sectional view of the utility model;

[0016] Figure 2 for Figure 1 A partial enlarged view of

[0017] Figure 3 This is a structural cross-sectional view of the pre-filter module of the present utility model;

[0018] Figure 4 This is the water flow direction diagram of the present utility model.

[0019] Marked in the figure are: ultrafiltration membrane shell 1, inlet end cover 2, water inlet interface 21, outlet end cover 3, water outlet interface 31, flushing port 32, ultrafiltration membrane group 4, central tube 41, water inlet port 411, water hole 412, ultrafiltration membrane filament 42, ultrafiltration membrane cover 43, pre-filter module 5, pre-filter element 51, activated carbon filler 511, first pre-end end cover 52, second pre-end end cover 53, first water outlet column 531. DETAILED DESCRIPTION

[0020] In the description of the present invention, it should be noted that, for directional words, such as the terms "center", "horizontal (X)", "longitudinal (Y)", "vertical (Z)", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and so on, indicating directions and positional relationships are based on the directions or positional relationships shown in the accompanying drawings, which are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and cannot be understood as limiting the specific protection scope of the present invention.

[0021] Furthermore, 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. Therefore, the terms "first" and "second" may explicitly or implicitly refer to one or more of these features. In the description of this utility model, "several" and "a number" mean two or more, unless otherwise specifically defined.

[0022] See the accompanying drawings. The anti-clogging ultrafiltration membrane assembly described in this embodiment includes an ultrafiltration membrane shell 1, an inlet end cover 2, an outlet end cover 3, an ultrafiltration membrane group 4 and a pre-filtration module 5. The inlet end cover 2 and the outlet end cover 3 are fixed on both sides of the ultrafiltration membrane shell 1; the ultrafiltration module 4 includes a central tube 41, an ultrafiltration membrane filament 42 and an ultrafiltration membrane cover 43, and the three are fixed by sealing glue; the top of the central tube 41 is provided with a water inlet port 411, and the circumference of the central tube 41 is provided with a plurality of water holes 412. The outer side of the ultrafiltration membrane cover 43 is tightly fitted with the inner wall of the outlet end cover 2, and the end face of the ultrafiltration membrane cover 43 is provided with a water outlet hole of the ultrafiltration membrane filament, which is connected to the water outlet interface 31 to form a water outlet channel.

[0023] The pre-filter module 5 is placed between the ultrafiltration membrane group 4 and the inlet end cover 2. The pre-filter module 5 includes a pre-filter element 51, a first pre-end cover 52 and a second pre-end cover 53. The pre-filter element 51 is a hollow cylindrical structure with non-woven fabrics on both the inside and the outside, and an activated carbon filler 511 in the middle. The second pre-end cover 53 is tightly combined with the inside of the ultrafiltration membrane shell 1 to block the pre-filter area and the ultrafiltration area, so that the raw water does not flow into the ultrafiltration area. A first water outlet column 531 is provided in the middle of the second pre-end cover 53. The first water outlet column 531 is inserted into the water inlet port 411 of the central tube 41. The two are tightly matched, so that the water filtered by the pre-filter element 51 flows into the central tube 41 through the first water outlet column 531 and enters the ultrafiltration area.

[0024] The inlet end cap 2 is provided with a water inlet interface 21, which is connected to the outer circumference of the pre-filter element 51 to form a first water inlet channel. The center of the pre-filter element 51 is connected to the first water outlet column 531, which is tightly connected to the center tube 41 via a sealing ring to form a second water inlet channel. The outlet end cap 3 is provided with a water outlet interface 31, which is connected to the water outlet hole inside the ultrafiltration membrane.

[0025] A flushing port 32 is provided on the side of the outlet end cover 3 . The flushing port 32 is located inside the ultrafiltration membrane cover 43 and is connected to the ultrafiltration membrane shell 1 to form a flushing channel.

[0026] During use, raw water flows into the pre-filtration area from the water inlet interface 21 of the inlet end cover 2, enters from the circumferential surface of the pre-filter element 51, and the water after coarse filtration by activated carbon flows into the central tube 41 from the first water outlet column 531, and then flows out from the water hole 412 of the central tube 41, enters the inner side of the membrane fiber from the outside of the membrane fiber, and then flows out from the water outlet hole of the ultrafiltration membrane cover 43, and finally flows out from the water outlet interface 31.

[0027] During flushing, the water outlet interface 31 is closed, and the raw water rushes toward the membrane fibers through the pre-filter element 51 and the water holes 412 of the ultrafiltration membrane central tube 41. Since the water outlet is cut off, the raw water flushes the membrane fibers from the center to the surrounding areas, and the waste water after flushing flows out through the flushing port 32, which can also prevent the membrane fibers from being blocked by dirt.

[0028] The above description is merely a preferred embodiment of the present invention. The scope of protection of the present invention is not limited to the above embodiment. All technical solutions based on the concept of the present invention are within the scope of protection of the present invention. It should be noted that for those skilled in the art, certain improvements and modifications that do not depart from the principles of the present invention should also be considered within the scope of protection of the present invention.

Claims

1. An anti-clogging ultrafiltration membrane assembly, characterized in that: It includes an ultrafiltration membrane shell, an inlet end cover, an outlet end cover, an ultrafiltration membrane group and a pre-filtration module, and the inlet end cover and the outlet end cover are fixed on both sides of the ultrafiltration membrane shell; the ultrafiltration membrane group includes a central tube, an ultrafiltration membrane wire and an ultrafiltration membrane cover, and the three are fixed by sealing glue; a water inlet port is provided on the top of the central tube, and a plurality of water holes are provided on the circumference of the central tube; the pre-filtration module is placed between the ultrafiltration membrane group and the inlet end cover, the pre-filtration module includes a pre-filter element, a first pre-end end cover and a second pre-end end cover, a first water outlet column is provided in the middle of the second pre-end end cover, the first water outlet column is inserted into the water inlet port of the central tube, and the two are tightly matched; a water inlet interface is provided at the inlet end cover, the water inlet interface is connected to the outside of the pre-filter element, and the middle of the pre-filter element is connected to the central tube through the first water outlet column; a water outlet interface is provided on the outlet end cover, and the water outlet interface is connected to the water outlet hole inside the ultrafiltration membrane wire.

2. The anti-clogging ultrafiltration membrane assembly according to claim 1, characterized in that: The pre-filter element is a hollow cylindrical structure, with non-woven fabrics on the inside and outside, and activated carbon filler in the middle.

3. The anti-clogging ultrafiltration membrane assembly according to claim 1, characterized in that: The water inlet interface is communicated with the outer circumference of the pre-filter element to form a first water inlet channel.

4. The anti-clogging ultrafiltration membrane assembly according to claim 1, characterized in that: The second front end cover is tightly integrated with the interior of the ultrafiltration membrane housing to separate the prefiltration area and the ultrafiltration area.

5. The anti-clogging ultrafiltration membrane assembly according to claim 1, characterized in that: The middle of the pre-filter element is connected to the first water outlet column, and the first water outlet column is tightly connected to the central tube through a sealing ring to form a second water inlet channel.

6. The anti-clogging ultrafiltration membrane assembly according to claim 1, characterized in that: The outer side of the ultrafiltration membrane cover is tightly fitted with the inner wall of the outlet end cover, and the end face of the ultrafiltration membrane cover is provided with a water outlet hole for the ultrafiltration membrane wire, which is connected to the water outlet interface to form a water outlet channel.

7. The anti-clogging ultrafiltration membrane assembly according to claim 1, characterized in that: A flushing port is provided on the side of the outlet end cover. The flushing port is located on the inner side of the ultrafiltration membrane cover and is connected to the ultrafiltration membrane shell to form a flushing channel.

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