Hollow fiber membrane unit bundle device

Abstract

The utility model discloses a hollow fiber membrane unit bundle device, which belongs to the technical field of membrane treatment, and comprises an aeration base, a connecting pipe, a water collecting box, a plurality of hollow fiber membrane filaments, a sealing colloid and a plurality of first aeration pipes, and the inner bottom wall of the aeration base is fixedly communicated with the plurality of first aeration pipes. A water collecting box is fixed to the top end of the first aeration pipe, a sealing colloid is fixed to the inner bottom wall of the water collecting box, a plurality of hollow fiber membrane filaments are fixed to the sealing colloid, the top ends of the hollow fiber membrane filaments are open, the bottom ends of the hollow fiber membrane filaments are closed and are free ends, and the bottom ends of the hollow fiber membrane filaments penetrate through the bottom wall of the water collecting box and extend into the aeration base; the first aeration pipe is arranged among the plurality of hollow fiber membrane filaments in a penetrating manner. According to the utility model, through the arrangement of the first aeration pipe, the aeration base and the water collecting box are connected, each position of the hollow fiber membrane silk can be aerated and cleaned, and the membrane pollution treatment effect is good.

Description

Technical Field

[0001] The utility model belongs to the technical field of membrane treatment, and in particular relates to a hollow fiber membrane unit bundle device. Background Art

[0002] With the development of membrane industry in recent years, the application of membrane technology has attracted more and more attention. Hollow fiber membrane components have been widely used in sewage treatment, wastewater reuse and many other fields due to their unique structural characteristics, such as high packing density and self-supporting system. However, especially for high turbidity water treatment applications, membrane contamination and membrane element fouling are inevitable, affecting the filtration efficiency and service life of the elements.

[0003] A clustered detachable external pressure column membrane assembly with announcement number CN202762316U comprises a detachable shell formed by a cylindrical shell, a water inlet and water production head, and a clamp, and a detachable filter element formed by a water inlet and water production isolation disk, a homogenizing disk, a support tube, a concentrated water tube, a hollow pin, a lock nut, a center tube, and a unit bundle. The two ends of the cylindrical shell are respectively fixed with a water inlet and water production head by a clamp, and a water inlet and water production isolation disk is arranged at the connection between the water inlet and water production head and the cylindrical shell at the top. The support tube and the concentrated water tube are connected between the water inlet and water production isolation disk and the homogenizing disk. A plurality of unit bundles are arranged around the support tube in a circumferentially uniform distribution. The bottom of the unit bundle is fixed on the homogenizing disk by a hollow pin, the top of the unit bundle passes through the water inlet and water production isolation disk, and the top of the unit bundle is fixed by a lock nut. The lower end of the unit bundle is fixed, and the unit bundle itself does not have an aeration structure, and the membrane pollution treatment effect is not good. Utility Model Content

[0004] The purpose of the utility model is to provide a hollow fiber membrane unit bundle device to overcome at least one of the above-mentioned defects in the prior art.

[0005] To achieve this purpose, the utility model adopts the following technical solutions:

[0006] The utility model provides a hollow fiber membrane unit bundle device, comprising an aeration base, a connecting pipe, a water collecting box, a plurality of hollow fiber membrane threads, a sealing colloid, and a plurality of first aeration tubes. An air distribution cavity is provided in the side wall and the bottom wall of the aeration base, and the air distribution cavity is connected with an external aeration device through the connecting pipe. The inner bottom wall of the aeration base is fixedly connected with a plurality of first aeration tubes, a water collecting box is fixed at the top end of the first aeration tube, a sealing colloid is fixed at the inner bottom wall of the water collecting box, a plurality of hollow fiber membrane threads are fixed at the sealing colloid, the top end of the hollow fiber membrane thread is open, and the opening is located above the sealing colloid, the bottom end of the hollow fiber membrane thread is closed and is a free end, the bottom end of the hollow fiber membrane thread passes through the bottom wall of the water collecting box, and extends into the aeration base, and the first aeration tube is penetrated between the plurality of hollow fiber membrane threads.

[0007] Preferably, the first aeration tube is provided with a plurality of groups of first aeration holes spaced apart along the length direction of the first aeration tube, and each group of first aeration holes includes a plurality of first aeration holes spaced apart along the circumference direction of the first aeration tube.

[0008] Preferably, it also includes a second aeration tube, a plurality of second aeration tubes are fixed to the top of the side wall of the aeration base, the bottom end of the second aeration tube is connected to the air distribution cavity, the top end of the second aeration tube is fixedly connected to the bottom wall of the water collecting box, and the inner side wall of the second aeration tube is provided with a plurality of second aeration holes distributed at intervals along the length direction of the second aeration tube.

[0009] Preferably, a plurality of third aeration holes are formed on the inner bottom wall of the aeration base, and the third aeration holes are connected to the air distribution cavity.

[0010] Preferably, a plurality of fourth aeration holes are formed on the inner side wall of the aeration base, and the fourth aeration holes are connected to the air distribution cavity.

[0011] Preferably, the top of the water collecting box is fixedly connected with a threaded pipe.

[0012] Preferably, the plurality of first aeration tubes include a first tube located in the middle of the aeration base, and a plurality of second tubes spaced apart along the circumference of the first tube.

[0013] The beneficial effects of the utility model are:

[0014] 1. The first aeration tube is set up to not only connect the aeration base and the water collection box, but also to aerate and clean each position of the hollow fiber membrane. In addition, the bottom end of the hollow fiber membrane is a free end, and the aeration of the first aeration tube makes the hollow fiber membrane vibrate, which can reduce the deposition of pollutants, enhance its anti-fouling ability, improve the membrane pollution treatment effect, and extend the service life.

[0015] 2. The first aeration holes spaced apart along the length direction of the first aeration tube can aerate various positions along the length direction of the hollow fiber membrane, thus avoiding the problem of incomplete aeration and cleaning caused by aeration only from the bottom.

[0016] 3. By setting the first aeration holes spaced apart along the circumference of the first aeration tube, each hollow fiber membrane surrounded by the first aeration tube can be aerated and cleaned laterally, and the aeration and cleaning effect is good.

[0017] 4. The second aeration tube is provided to not only further improve the connection stability between the aeration base and the water collecting box, but also to aerate the hollow fiber membrane inwards. Together with the first aeration tube, the overall aeration is more comprehensive and efficient.

[0018] 5. By setting the third aeration hole, the hollow fiber membrane is vertically aerated from the bottom, so as to further shake the hollow fiber membrane, thereby improving the membrane fouling treatment effect.

[0019] 6. Through the setting of the fourth aeration hole, the hollow fiber membrane is transversely aerated from the bottom, so as to further shake the hollow fiber membrane, thereby improving the membrane fouling treatment effect.

[0020] 7. The threaded pipe is used to realize the detachable connection with other structures of the membrane assembly, which is convenient for disassembly and assembly.

[0021] 8. The arrangement of the first pipe in the middle and a plurality of second pipes surrounding it makes the aeration cleaning more comprehensive and thorough. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a main structural schematic diagram of the utility model.

[0023] Figure 2 It is a cross-sectional structural schematic diagram of the utility model.

[0024] Figure 3 It is a schematic diagram of the matching structure of the aeration base and the second aeration pipe of the utility model.

[0025] Figure 4 It is an enlarged schematic diagram of A in the figure.

[0026] The markings in the attached drawings are: 1-aeration base, 2-connecting pipe, 3-water collecting box, 4-hollow fiber membrane, 5-sealing colloid, 6-first aeration tube, 7-air distribution cavity, 8-first aeration hole, 9-second aeration tube, 10-second aeration hole, 11-third aeration hole, 12-fourth aeration hole, 13-threaded tube, 61-first tube, 62-second tube. DETAILED DESCRIPTION

[0027] The utility model is now further described in conjunction with the accompanying drawings and specific implementation methods.

[0028] Contents not described in detail in this specification belong to the prior art known to professional and technical personnel in this field. In the description of the present utility model, it should be understood that the terms "center", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate the orientation or position relationship based on the orientation or position relationship shown in the accompanying drawings, which is only for the convenience of describing the present utility model and simplifying the description, and does not indicate or imply 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 the present utility model. In addition, the terms "first", "second", "third" and the like are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.

[0029] like Figures 1 to 4As shown, a hollow fiber membrane unit bundle device provided in this embodiment includes an aeration base 1, a connecting pipe 2, a water collecting box 3, a plurality of hollow fiber membranes 4, a sealing colloid 5, and a plurality of first aeration tubes 6. The side wall and the bottom wall of the aeration base 1 are provided with an air distribution cavity 7, and the air distribution cavity 7 is connected to the external aeration equipment through the connecting pipe 2. The inner bottom wall of the aeration base 1 is fixedly connected with a plurality of first aeration tubes 6, and the top of the first aeration tube 6 is fixed with a water collecting box 3, and the inner bottom wall of the water collecting box 3 is fixed with a sealing colloid 5, and the sealing colloid 5 is fixed with a plurality of hollow fiber membranes 4. The top of the hollow fiber membrane filament 4 is open, and the opening is located above the sealing colloid 5. The bottom end of the hollow fiber membrane filament 4 is closed and is a free end. The bottom end of the hollow fiber membrane filament 4 passes through the bottom wall of the water collecting box 3 and extends into the aeration base 1. The first aeration tube 6 is penetrated between the plurality of hollow fiber membranes 4. The aeration base 1 is integrated into the hollow fiber membrane unit bundle, and aeration is provided. The first aeration tube 6 is provided to not only connect the aeration base 1 and the water collecting box 3, but also to aerate and clean each position of the hollow fiber membrane 4. In addition, the bottom end of the hollow fiber membrane 4 is a free end, and the aeration of the first aeration tube 6 makes the hollow fiber membrane 4 vibrate, which can reduce the deposition of pollutants, enhance its anti-fouling ability, improve the membrane pollution treatment effect, and extend the service life.

[0030] Among them, the first aeration tube 6 is provided with a plurality of groups of first aeration holes 8 spaced apart along the length direction of the first aeration tube 6, and each group of first aeration holes includes a plurality of first aeration holes spaced apart along the circumferential direction of the first aeration tube 6. The arrangement of the first aeration holes 8 spaced apart along the length direction of the first aeration tube 6 can aerate each position in the length direction of the hollow fiber membrane filament 4, avoiding the problem of incomplete aeration and cleaning caused by aeration only from the bottom end. By arranging the first aeration holes spaced apart along the circumferential direction of the first aeration tube 6, each hollow fiber membrane filament 4 surrounded by the first aeration tube 6 can be aerated and cleaned laterally, and the aeration and cleaning effect is good.

[0031] Among them, it also includes a second aeration tube 9, a plurality of second aeration tubes 9 are fixed on the top of the side wall of the aeration base 1, the bottom end of the second aeration tube 9 is connected to the air distribution cavity 7, the top end of the second aeration tube 9 is fixedly connected to the bottom wall of the water collecting box 3, and the inner side wall of the second aeration tube 9 is provided with a plurality of second aeration holes 10 distributed at intervals along the length direction of the second aeration tube 9. The second aeration tube 9 is provided to not only further improve the connection stability between the aeration base 1 and the water collecting box 3, but also to aerate the hollow fiber membrane filament 4 inwardly, and cooperate with the first aeration tube 6, so that the overall aeration is more comprehensive and efficient.

[0032] The inner bottom wall of the aeration base 1 is provided with a plurality of third aeration holes 11, which are connected to the air distribution cavity 7. Through the provision of the third aeration holes 11, the hollow fiber membrane filaments 4 are vertically aerated from below, further shaking the hollow fiber membrane filaments 4, thereby improving the membrane fouling treatment effect.

[0033] The inner wall of the aeration base 1 is provided with a plurality of fourth aeration holes 12, which are connected to the air distribution cavity 7. Through the arrangement of the fourth aeration holes 12, the hollow fiber membrane filaments 4 are transversely aerated from their lower parts, further shaking the hollow fiber membrane filaments 4, thereby improving the membrane fouling treatment effect.

[0034] The top of the water collecting box 3 is fixedly connected with a threaded pipe 13. The threaded pipe 13 is used to realize a detachable connection with other structures of the membrane assembly, which is convenient for disassembly and assembly.

[0035] The first aeration tubes 6 include a first tube 61 located in the middle of the aeration base 1 and a plurality of second tubes 62 spaced apart along the circumference of the first tube 61. The first tube 61 in the middle and the second tubes 62 surrounding it make the aeration cleaning more comprehensive and thorough.

[0036] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some of the technical features thereof may be replaced by equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A hollow fiber membrane unit bundle device, characterized in that: It includes an aeration base, a connecting pipe, a water collecting box, a plurality of hollow fiber membranes, a sealing colloid, and a plurality of first aeration pipes; An air distribution cavity is provided in the side wall and the bottom wall of the aeration base, and the air distribution cavity is connected with an external aeration device through a connecting pipe; The inner bottom wall of the aeration base is fixedly connected with a plurality of first aeration tubes, a water collecting box is fixed at the top end of the first aeration tube, a sealing colloid is fixed at the inner bottom wall of the water collecting box, a plurality of hollow fiber membranes are fixed to the sealing colloid, the top end of the hollow fiber membrane is open, and the opening is located above the sealing colloid, the bottom end of the hollow fiber membrane is closed and is a free end, and the bottom end of the hollow fiber membrane passes through the bottom wall of the water collecting box and extends into the aeration base; The first aeration tube is arranged between a plurality of the hollow fiber membranes.

2. The hollow fiber membrane unit bundle device according to claim 1, characterized in that: The first aeration tube is provided with a plurality of groups of first aeration holes spaced apart along the length direction of the first aeration tube, and each group of the first aeration holes includes a plurality of first aeration holes spaced apart along the circumference direction of the first aeration tube.

3. The hollow fiber membrane unit bundle device according to claim 1, characterized in that: Also included is a second aeration tube; A plurality of second aeration tubes are fixed to the top of the side wall of the aeration base, the bottom ends of the second aeration tubes are communicated with the air distribution cavity, and the top ends of the second aeration tubes are fixedly connected to the bottom wall of the water collecting box; The inner side wall of the second aeration tube is provided with a plurality of second aeration holes distributed at intervals along the length direction of the second aeration tube.

4. The hollow fiber membrane unit bundle device according to claim 1, characterized in that: The inner bottom wall of the aeration base is provided with a plurality of third aeration holes, and the third aeration holes are communicated with the air distribution cavity.

5. The hollow fiber membrane unit bundle device according to claim 1, characterized in that: The inner side wall of the aeration base is provided with a plurality of fourth aeration holes, and the fourth aeration holes are communicated with the air distribution cavity.

6. The hollow fiber membrane unit bundle device according to claim 1, characterized in that: The top of the water collecting box is fixedly connected with a threaded pipe.

7. The hollow fiber membrane unit bundle device according to claim 1, characterized in that: The first aeration tubes include a first tube located in the middle of the aeration base and a plurality of second tubes spaced apart along the circumference of the first tube.

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