Ultrafiltration membrane core structure convenient to replace

Abstract

The utility model discloses an ultrafiltration membrane core body structure convenient to replace, belongs to the technical field of ultrafiltration membrane core bodies, and mainly solves the problems that in the prior art, an ultrafiltration membrane filter core is of an integrated fixed structure, the filter core is difficult to be directly detached and taken out from a sleeve, when the filter core is blocked or damaged, a worker cannot conveniently replace the filter core at any time, and the filter core is inconvenient to replace. The ultrafiltration membrane core comprises a membrane shell, two mounting rings are fixedly connected to the inner wall of the membrane shell, fixing seats are arranged in the two mounting rings and are cylindrical, ultrafiltration membrane wires are arranged between the two fixing seats in a penetrating mode and are fixed in the membrane shell, and the ultrafiltration membrane wires are fixed in the membrane shell. A fixing assembly is arranged on the surface of one side of one mounting ring, a connecting ring is coaxially arranged on the surface of one fixing seat and located in the membrane shell, and a plurality of mounting bolts are connected to the surface of one side of the connecting ring in a penetrating and threaded mode.

Description

Technical Field

[0001] The utility model relates to the technical field of ultrafiltration membrane cores, and more specifically, it particularly relates to a structure of an ultrafiltration membrane core that is convenient for replacement. Background Art

[0002] An ultrafiltration membrane is an artificial permeable membrane used in the ultrafiltration process. Ultrafiltration technology can intercept particles of colloidal size in water, while water and low-molecular-weight solutes are allowed to pass through the membrane. The mechanism of ultrafiltration refers to the comprehensive effect of mechanical sieving on the membrane surface, membrane pore blockage, and adsorption on the membrane surface and membrane pores, mainly based on sieving. Since the ultrafiltration membrane is a porous material and removes impurities in water by physical interception, the ultrafiltration membrane needs to be cleaned regularly to ensure the throughput of the ultrafiltration membrane and extend the service life of the ultrafiltration membrane. Therefore, an automatic cleaning device is required to perform cleaning operations on the ultrafiltration membrane.

[0003] However, there are various types of ultrafiltration membrane cores in the prior art. For example, the utility model patent CN206152645U relates to a cross-flow ultrafiltration membrane filter element structure. This utility model is provided with a sleeve, a reverse osmosis membrane filter element arranged inside the sleeve, and end caps detachably connected to both ends of the sleeve. The reverse osmosis membrane filter element is composed of a central tube and a reverse osmosis membrane wound around the central tube. A pure water port extending out of the sleeve is formed on the side wall of the central tube. The two end caps are respectively provided with a water inlet port and a water outlet port. There is a flow gap between the reverse osmosis membrane and the sleeve. The water inlet port and the water outlet port are connected through the flow gap. Under the action of pressure, part of the water radially penetrates inward through the reverse osmosis membrane into the central tube, and the other part of the water flows axially through the flow gap at a high speed to form a turbulent flow, continuously washing the inner surface of the reverse osmosis membrane, and taking away a small amount of impurities and foreign matters attached to the reverse osmosis membrane, thereby preventing the blockage of the reverse osmosis membrane, reducing the number of backwashing times, and effectively extending the service life of the reverse osmosis membrane filter element.

[0004] Although this ultrafiltration membrane filter element can reduce the number of backwashing times and extend the service life of the filter element, during use, the filter element is an integral fixed structure, and it is difficult to directly remove the filter element from the sleeve. When the filter element is blocked or damaged, it is inconvenient for the staff to replace the filter element at any time, which is time-consuming and laborious and inconvenient to use. To avoid this phenomenon, it is very necessary to design a structure of an ultrafiltration membrane core that is convenient for replacement. Content of the Utility Model

[0005] The purpose of this part is to outline some aspects of the embodiments of the utility model and briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this part, as well as in the abstract of the specification and the title of the utility model of this application, to avoid obscuring the purpose of this part, the abstract of the specification, and the title of the utility model. However, such simplifications or omissions cannot be used to limit the scope of the utility model.

[0006] To achieve the above object, the utility model provides an ultrafiltration membrane core structure that is convenient to replace, which is achieved by the following specific technical means:

[0007] An ultrafiltration membrane core structure that is convenient to replace, including a membrane shell, two mounting rings are fixedly connected to the inner wall of the membrane shell, fixing seats are arranged in both of the two mounting rings, and the fixing seats are cylindrical. An ultrafiltration membrane filament is penetrated and arranged between the two fixing seats, and the ultrafiltration membrane filament is fixed within the membrane shell. A fixing component is arranged on one side surface of one of the mounting rings. A connecting ring is coaxially arranged on the surface of one of the fixing seats, and the connecting ring is located within the membrane shell. A plurality of mounting bolts are penetrated and threadedly connected to one side surface of the connecting ring.

[0008] Preferably, the fixing component includes guiding chutes, clamping blocks, return springs, connecting blocks, adjusting blocks, clamping grooves and limiting rings. Two guiding chutes are penetrated and arranged on one side surface of one of the mounting rings. Clamping blocks are slidably mounted inside the guiding chutes respectively, and the shapes of the clamping blocks are trapezoidal. Return springs are fixed inside the guiding chutes respectively, and one end of each return spring is fixedly connected to one end of the corresponding clamping block. The two return springs are in a compressed state.

[0009] Preferably, adjusting blocks are fixedly connected to one side surfaces of the clamping blocks respectively through connecting blocks, and the two adjusting blocks are L-shaped. Two clamping grooves are formed on the surface of the other fixing seat. The return springs can press the clamping blocks tightly to snap them into the matching clamping grooves. A limiting ring is coaxially arranged on the surface of the other fixing seat, and the limiting ring is matched with the adjusting blocks.

[0010] Preferably, two first connecting flanges are coaxially arranged on the outer surface of the membrane shell, and the two first connecting flanges are symmetrically arranged. Second connecting flanges are arranged on the surfaces of the two first connecting flanges away from each other.

[0011] Preferably, sealing end caps are fixedly connected to the surfaces of the two second connecting flanges away from each other respectively, and the two sealing end caps are symmetrically arranged. A plurality of connecting bolts are penetrated and arranged on one side surface of each of the two first connecting flanges. Connecting nuts are threadedly mounted on the surfaces of the connecting bolts. Positioning grooves are formed at both ends of the membrane shell. Sealing rings are arranged inside the positioning grooves. Positioning rings are arranged on the surfaces of the two sealing end caps close to each other respectively, and the positioning rings are matched with the positioning grooves.

[0012] Preferably, an isolating ring is fixedly connected to the inner wall of one of the sealing end caps. A rubber ring is fixedly connected to one side surface of the isolating ring, and the rubber ring is in close contact with one of the fixing seats.

[0013] Preferably, a water inlet pipe is embedded at one end of one of the sealing end caps, a sewage discharge pipe is embedded at one end of the other sealing end cap, and two water outlet pipes are embedded on the outer surface of the membrane shell.

[0014] Due to the application of the above technical solution, the utility model has the following advantages compared with the prior art:

[0015] 1. When disassembling the ultrafiltration membrane filter element, the movable adjusting block is used to first release the fixing of the adjusting block on the limit ring, and then the card block is withdrawn from the card slot, and the positioning function of the card block is released, and the filter element can be taken out for replacement. When reinstalling the filter element, the movable adjusting block is used to directly press the entire filter element into the membrane shell, and the resilience of the reset spring is used to make the trapezoidal card block movable and fit into the card slot, and the installation is completed by pressing the limit ring with the adjusting block. Therefore, when the filter element is blocked or damaged, it is convenient to replace the filter element, saving time and effort, and being convenient to use.

[0016] 2. After assembling the ultrafiltration membrane filter element, the fixing seat passes through the mounting ring so that the connecting ring is close to the inner wall of the membrane shell, and then tightens multiple mounting bolts to tighten one end of the ultrafiltration membrane filter element to further ensure the stability of the ultrafiltration membrane filter element during use. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The accompanying drawings, which constitute part of this application, are intended to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are intended to explain the present invention and do not constitute an improper limitation of the present invention. In the accompanying drawings:

[0018] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0019] Figure 2 It is a front cross-sectional schematic diagram of the present utility model;

[0020] Figure 3 It is a schematic diagram of the local structure of the utility model;

[0021] Figure 4 It is a schematic diagram of the structure enlarged at point A;

[0022] Figure 5 It is a structural diagram of an ultrafiltration membrane filter element;

[0023] Figure 6 It is a schematic diagram of the structure enlarged at B;

[0024] Figure 7 It is a structural diagram of the sealing end cover.

[0025] In the figure: 1, membrane housing; 2, mounting ring; 3, fixed seat; 4, ultrafiltration membrane filaments; 5, guiding chute; 6, clamping block; 7, return spring; 8, connecting block; 9, adjusting block; 10, clamping groove; 11, limiting ring; 12, connecting ring; 13, mounting bolt; 14, first connecting flange; 15, second connecting flange; 16, sealing end cover; 17, connecting bolt; 18, connecting nut; 19, positioning groove; 20, sealing ring; 21, water outlet pipe; 22, isolation ring; 23, rubber ring; 24, water inlet pipe; 25, sewage pipe. Detailed implementation manners

[0026] To make the above objects, features and advantages of the present utility model more obvious and understandable, the following detailed description of the specific implementation manners of the present utility model will be given in conjunction with the accompanying drawings of the specification.

[0027] In the following description, many specific details are set forth in order to fully understand the present utility model, but the present utility model may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the connotation of the present utility model. Therefore, the present utility model is not limited by the specific embodiments disclosed below.

[0028] Secondly, the so-called "one embodiment" or "embodiment" herein refers to a specific feature, structure or characteristic that may be included in at least one implementation manner of the present utility model. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment that is mutually exclusive with other embodiments. The present utility model provides the following embodiments.

[0029] Such as Figure 3 、 Figure 4 And Figure 5As shown, it is a structural schematic diagram of the ultrafiltration membrane core structure that is easy to replace in this embodiment. The ultrafiltration membrane core structure in this embodiment includes a membrane shell 1, and the inner wall of the membrane shell 1 is fixedly connected with two mounting rings 2. A fixing seat 3 is provided in the mounting ring 2, and the fixing seat 3 is cylindrical. An ultrafiltration membrane wire 4 is penetrated between the two fixing seats 3, and the ultrafiltration membrane wire 4 is fixed in the membrane shell 1. One side surface of one mounting ring 2 is penetrated by two guide grooves 5, and a card block 6 is slidably installed inside the guide groove 5, and the shape of the card block 6 is trapezoidal. A reset spring 7 is fixed inside the guide groove 5, and one end of the reset spring 7 is fixedly connected to one end of the card block 6. The two reset springs 7 are in a compressed state, and an adjustment block 9 is fixed to one side surface of the card block 6 through a connecting block 8, and the two adjustment blocks 9 are L-shaped. Two card slots 10 are provided on the surface of the other fixing seat 3. When the filter element is to be reinstalled, the movable adjusting block 9 directly presses the entire filter element into the membrane housing 1, and utilizes the resilience of the reset spring 7 to make the trapezoidal block 6 movable and snap into the groove 10, and the installation operation can be directly completed by adjusting the block 9 against the limiting ring 11, thereby facilitating the replacement of the filter element at any time when the filter element is blocked or damaged.

[0030] It is worth noting that the guide groove 5, the block 6, the return spring 7, the connecting block 8, the adjusting block 9, the slot 10 and the limiting ring 11 in this embodiment constitute a fixing assembly, which is used to fix the set ultrafiltration membrane filter element.

[0031] In addition, if Figure 2 and Figure 3 As shown, in this embodiment, a connecting ring 12 is coaxially provided on the surface of one of the fixing seats 3, and the connecting ring 12 is located in the membrane shell 1. A plurality of mounting bolts 13 are threadedly connected through the surface of one side of the connecting ring 12. After the ultrafiltration membrane filter element is assembled, the fixing seat 3 passes through the mounting ring 2 so that the connecting ring 12 is close to the inner wall of the membrane shell 1, and then the plurality of mounting bolts 13 are tightened to tighten one end of the ultrafiltration membrane filter element to ensure the stability of the ultrafiltration membrane filter element during use.

[0032] like Figure 1 and Figure 6As shown, on the outer surface of the membrane housing 1 in this embodiment, two first connection flanges 14 are coaxially arranged, and the two first connection flanges 14 are symmetrically arranged. On the surfaces of the two first connection flanges 14 away from each other, second connection flanges 15 are provided.

[0033] As Figure 6 As shown, on the surfaces of the two second connection flanges 15 away from each other in this embodiment, sealing end caps 16 are fixed, and the two sealing end caps 16 are symmetrically arranged. On one side surface of the two first connection flanges 14, a plurality of connection bolts 17 are penetrated. A connection nut 18 is threadedly installed on the surface of the connection bolt 17. Positioning grooves 19 are provided at both ends of the membrane housing 1. Sealing rings 20 are arranged in the positioning grooves 19. On the surfaces of the two sealing end caps 16 close to each other, positioning rings are provided, and the positioning rings are matched with the positioning grooves 19. Before disassembling the filter element, loosen the plurality of connection bolts 17 to separate the first connection flange 14 and the second connection flange 15, so as to remove the two sealing end caps 16, facilitating the subsequent disassembly and assembly operations of the filter element.

[0034] As Figure 3 and Figure 7 As shown, on the inner wall of one of the sealing end caps 16 in this embodiment, an isolation ring 22 is fixedly connected. On one side surface of the isolation ring 22, a rubber ring 23 is fixed, and the rubber ring 23 is in close contact with one of the fixing seats 3. After installing the sealing end cap 16, the isolation ring 22 can be used to drive the rubber ring 23 to press the fixing seat 3, and the isolation ring 22 is used to seal the provided fixing component.

[0035] As Figure 7 As shown, one end of one of the sealing end caps 16 in this embodiment is embedded with a water inlet pipe 24, and one end of the other sealing end cap 16 is embedded with a sewage discharge pipe 25. Two water outlet pipes 21 are embedded on the outer surface of the membrane housing 1.

[0036] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A conveniently replaceable ultrafiltration membrane core structure, comprising a membrane shell (1), wherein the inner wall of the membrane shell (1) is fixedly connected to two mounting rings (2), a fixing seat (3) is provided in each of the two mounting rings (2), and the fixing seat (3) is cylindrical, an ultrafiltration membrane filament (4) is provided between the two fixing seats (3), and the ultrafiltration membrane filament (4) is fixed in the membrane shell (1), and is characterized in that: A fixing assembly is provided on one side surface of one mounting ring (2), a connecting ring (12) is coaxially provided on the surface of one fixing seat (3), and the connecting ring (12) is located inside the membrane shell (1), and a plurality of mounting bolts (13) are threadedly connected through one side surface of the connecting ring (12).

2. The ultrafiltration membrane core structure that is easy to replace according to claim 1, characterized in that: The fixing assembly comprises a guide slot (5), a clamping block (6), a return spring (7), a connecting block (8), an adjusting block (9), a clamping slot (10) and a limiting ring (11), wherein one side surface of a mounting ring (2) is provided with two guide slots (5), the inside of each guide slot (5) is slidably mounted with a clamping block (6), and the shape of the clamping block (6) is trapezoidal, the inside of each guide slot (5) is fixed with a return spring (7), and one end of the return spring (7) is fixedly connected to one end of the clamping block (6), and the two return springs (7) are in a compressed state.

3. The ultrafiltration membrane core structure that is easy to replace according to claim 1, characterized in that: An adjusting block (9) is fixed to one side surface of each clamping block (6) via a connecting block (8), and the two adjusting blocks (9) are L-shaped. Two clamping grooves (10) are provided on the surface of the other fixing seat (3). A reset spring (7) can press the clamping block (6) to clamp it into the matching clamping grooves (10). A limiting ring (11) is coaxially provided on the surface of the other fixing seat (3), and the limiting ring (11) matches the adjusting block (9).

4. The ultrafiltration membrane core structure that is easily replaceable according to claim 1, characterized in that: Two first connecting flanges (14) are coaxially arranged on the outer surface of the membrane shell (1), and the two first connecting flanges (14) are symmetrically arranged. Second connecting flanges (15) are both arranged on surfaces of the two first connecting flanges (14) that are away from each other.

5. The ultrafiltration membrane core structure that is easy to replace according to claim 4, characterized in that: The surfaces of the two second connecting flanges (15) that are away from each other are fixed with sealing end covers (16), and the two sealing end covers (16) are symmetrically arranged. A plurality of connecting bolts (17) are provided through the surfaces of one side of the two first connecting flanges (14), and connecting nuts (18) are threadedly installed on the surfaces of the connecting bolts (17). Positioning grooves (19) are provided at both ends of the membrane shell (1), and sealing rings (20) are provided in the positioning grooves (19). The surfaces of the two sealing end covers (16) that are close to each other are provided with positioning rings, and the positioning rings match the positioning grooves (19).

6. The ultrafiltration membrane core structure that is easily replaceable according to claim 5, characterized in that: An isolating ring (22) is fixedly connected to the inner wall of one of the sealing end covers (16), a rubber ring (23) is fixed to one side surface of the isolating ring (22), and the rubber ring (23) and one of the fixing seats (3) are in close contact with each other.

7. The ultrafiltration membrane core structure that is easily replaceable according to claim 5, characterized in that: One end of one sealing end cover (16) is embedded with a water inlet pipe (24), one end of the other sealing end cover (16) is embedded with a sewage discharge pipe (25), and the outer surface of the membrane shell (1) is embedded with two water outlet pipes (21).

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