Ultrafiltration membrane assembly with detachable membrane core

Abstract

The invention provides an ultrafiltration membrane assembly with a detachable membrane core, which comprises a membrane tube and quick-release structures, the quick-release structures are arranged at two ends of the membrane tube, each quick-release structure comprises a seal cover and a stainless steel hoop, the seal covers are attached to the end surface of the membrane tube, the stainless steel hoops are tightly hooped on the side surfaces of the seal covers and the membrane tube, the end parts of the seal covers are provided with a water inlet and a water outlet, and the water inlet and the water outlet are communicated with the membrane tube. A water producing opening is formed in the side surface of the sealing head cover; and a detachable membrane core is arranged in the membrane tube. The structure is simple and reasonable, the integrality is high, the membrane tube and the membrane core are designed to be of a detachable split structure, the independent end socket covers are designed at the two ends of the membrane tube, and the water inlet, the water production port and the water outlet are formed in the end socket covers; on the premise that the complete function of the ultrafiltration membrane assembly is met, the membrane core can be independently detached from the membrane tube, and the usable membrane shell (containing the membrane tube) can be reserved when the old membrane core is replaced, so that the resource waste is avoided, and the material cost is saved; and the structural design is optimized, mounting and dismounting are convenient and fast, time is saved, and the mounting and maintenance efficiency is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of ultrafiltration membrane assemblies, in particular to the technical field of replaceable membrane core ultrafiltration membrane assemblies; specifically, to an ultrafiltration membrane assembly with a detachable membrane core. Background Art

[0002] Currently, ultrafiltration membranes have become a commonly used filtration product in industrial production and daily life. Ultrafiltration membranes are artificial permeable membranes used in the ultrafiltration process. They are polymer semi-permeable membranes that can separate polymer colloids or suspended particles of a certain size from solutions. They are driven by pressure, have a pore size of 1 to 100 nm, are asymmetric membranes, have a pore density of approximately 10 / cm, and operate at a pressure differential of 100 to 1000 kPa. They are suitable for removing colloidal particles and macromolecules, and can separate solutions with a concentration of less than 10%.

[0003] However, after long-term use, residues will adhere to the surface of the ultrafiltration membrane core and form fouling, resulting in a decrease in filtration effect and water production.

[0004] After the membrane core is clogged with dirt, the membrane shell (including the membrane tube) will not be damaged and can still be used. However, the existing ultrafiltration membrane components are all integrated and need to be replaced as a whole. The membrane core is directly discarded together with the membrane shell, resulting in a huge waste of resources. Summary of the Invention

[0005] In view of this, the purpose of the present invention is to design an ultrafiltration membrane assembly with a detachable membrane core, designing the membrane tube and the membrane core into a detachable split structure, designing independent head covers at both ends of the membrane tube, and providing a water inlet, a water outlet and a water outlet on the head cover; on the premise of meeting the complete functions of the ultrafiltration membrane assembly, the membrane core can be separately removed from the membrane tube, so that when the old membrane core is replaced, the usable membrane shell (including the membrane tube) can be retained, avoiding waste of resources and saving material costs; and the structural design is optimized, and the installation and disassembly are convenient and quick, saving time and improving installation and maintenance efficiency.

[0006] The present invention provides an ultrafiltration membrane assembly with a detachable membrane core, comprising: a membrane tube and a quick-release structure, wherein the quick-release structure is arranged at both ends of the membrane tube, the quick-release structure includes a head cover and a stainless steel clamp, the head cover is fitted with the end face of the membrane tube, the stainless steel clamp is tightly clamped on the side of the head cover and the membrane tube, the end of the head cover is provided with a water inlet and a water outlet, and the side of the head cover is provided with a water production port; a detachable membrane core is provided in the membrane tube.

[0007] The end caps are installed at both ends of the membrane tube, allowing it to be opened and removed from both ends, resolving the problem of the membrane tube being unable to be removed in existing integrated ultrafiltration tube assemblies. The end caps are tightly connected to the ends of the membrane tube via stainless steel clamps, enabling quick assembly and disassembly. Compared to conventional threaded connections, they improve installation and maintenance efficiency.

[0008] Wastewater flows from the inlet into the membrane tube for filtration. The outlet is used to discharge impurities, pollutants, and some concentrated water captured by the ultrafiltration membrane during the filtration process. If these captured substances remain within the membrane for a long time, they will not only affect the filtration efficiency of the ultrafiltration membrane but may also damage the membrane. Therefore, these substances must be regularly discharged from the membrane tube through the outlet.

[0009] The water outlet is the outlet of pure water after being filtered by the ultrafiltration membrane. This water has been free of most impurities, microorganisms and harmful substances, and has reached a relatively high water quality standard. It can be directly drunk by people or used in other occasions with high water quality requirements.

[0010] Furthermore, the head cover includes an upper head cover and a lower head cover respectively arranged at the upper end and the lower end of the membrane tube, and the upper head cover and the lower head cover are tightly connected to the membrane tube through an upper stainless steel clamp and a lower stainless steel clamp respectively; the bottom end of the lower head cover is provided with a water inlet, and the side is provided with a water outlet; the top end of the upper head cover is provided with a water outlet, and the side is provided with a water outlet.

[0011] The upper and lower head covers are connected to the upper and lower ends of the membrane tube using upper and lower stainless steel clamps, respectively, for quick and easy assembly. The water outlets on the sides of the upper and lower head covers allow the purified water filtered by the ultrafiltration membrane to flow out of the membrane tube. The water outlet at the top of the upper head cover discharges impurities, pollutants, and some concentrated water intercepted by the ultrafiltration membrane tube during the filtration process.

[0012] Furthermore, the membrane core includes a wire distribution rack and an ultrafiltration membrane, the ultrafiltration membrane is wrapped on the wire distribution rack, the wire distribution rack includes a central tube, the central tube is located on the central axis of the membrane core, and wire distribution devices are fixedly provided at both ends of the central tube.

[0013] The existing wire routing frame is a one-piece structure, and the membrane tube itself cannot be disassembled. The wire routing frame of the present invention adopts a separate structure with a central tube and a wire routing device, which is convenient for production and processing, and also facilitates the installation and removal of the wire routing frame from the inner wall of the membrane tube. The wire routing frame can be easily removed from the membrane tube, and the upper and lower wire routing devices and the central tube can be replaced separately, while the remaining parts can be reused.

[0014] Furthermore, the upper inner wall and the lower inner wall of the membrane tube are each provided with a plurality of radial concentric flanges centered on the axis of the membrane tube, and the outer circumference of the wire distributor is provided with radial grooves that match the flanges (same size, height, and number), and the grooves are snap-connected to the flanges.

[0015] The upper and lower wire distributors are connected to the central tube to form a wire distribution rack. The wire distribution rack is placed into the membrane tube, and the groove on the wire distribution rack is aligned with the flange on the inner wall of the membrane tube to prevent the wire distribution rack from shifting inside the membrane tube.

[0016] When replacing the membrane element, the old membrane element fixed by the flange and groove is pushed out of the membrane tube, and then the new membrane element is pushed into the membrane tube for replacement.

[0017] Furthermore, the upper stainless steel hoop and the lower stainless steel hoop are respectively provided with a bolt, a through-hole surface, and a clamping surface. The bolt includes a screw and a nut with threaded connection. The screw passes through the through-hole surface and the clamping surface of the upper stainless steel hoop and the lower stainless steel hoop, and the nut is pressed on the side of the screw passing through the clamping surface.

[0018] Preferably, the bolts are arranged in two groups symmetrically relative to the membrane tube, which can evenly compress the membrane tube and improve the connection stability.

[0019] When disassembling and assembling the ultrafiltration membrane assembly, the bolts of the stainless steel clamp can be removed with a movable wrench, so that the upper head cover and the lower head cover can be smoothly separated from the membrane tube. The old membrane core can be taken out of the membrane tube, and the new membrane core can be pushed into the membrane tube. Then, the upper head cover and the lower head cover can be connected to the membrane tube through the stainless steel clamp, and the bolts of the stainless steel clamp can be tightened with a movable wrench. This process completes the replacement of the membrane core, which not only utilizes the original membrane shell but also saves time.

[0020] Furthermore, the upper stainless steel clamp and the lower stainless steel clamp are respectively provided with an oblong through-hole on the through-hole surface and a circular connecting hole on the clamping surface. The screw is passed through the through-hole and the connecting hole, and the nut is pressed on the part of the screw extending from the connecting hole.

[0021] The oblong holes for the bolts allow for a certain range of movement at the connection point, avoiding stress concentration caused by rigid connections and making the assembly more stable in vibrating environments. The oblong holes allow the device to expand and contract freely during temperature fluctuations, avoiding the significant restraint caused by thermal expansion and thus protecting the assembly. The oblong holes also enhance flexibility in the assembly of the stainless steel clamps, making installation easier even with tight tolerances and improving assembly convenience.

[0022] Furthermore, the upper stainless steel hoop and the lower stainless steel hoop each include two semicircular plates, and the two semicircular plates form a complete circular structure; the two semicircular plates are bolted together.

[0023] This semicircular split clamp consists of two semicircular plates bolted together. Installation is quick and easy, requiring no special tools or equipment, significantly reducing installation complexity. The tightening force of the bolts secures the clamp to the membrane tube and head cap, ensuring a secure and reliable connection. Furthermore, the semicircular split clamp is lightweight, simple to manufacture, and cost-effective, making it widely applicable.

[0024] Furthermore, the joint surfaces between the upper head cover and the lower head cover and the membrane tube are of a stepped structure, and a boss (male stop) is provided on the end faces of the upper head cover and the lower head cover, and a recess (female stop) is provided on the end face of the membrane tube, and the boss and the recess are matched with a small gap.

[0025] The concave-concave-concave fit improves assembly precision and stability. This design ensures precise relative positioning between the end cap and the membrane tube by interlocking the boss (male stop) with the groove (female stop), thereby improving assembly precision and stability. This fit prevents parts from shifting or rotating during assembly, ensuring precise component alignment. The concave-concave-concave fit increases the contact area, thereby enhancing the overall strength and rigidity of the structure. This allows the components to better distribute stress when subjected to external forces, reducing deformation and damage. The precise fit simplifies the installation process, making it easier and faster. The precise fit between the parts eliminates the need for additional fixings during installation, reducing installation time and labor costs. Extending service life: The precise fit reduces friction and wear between parts, thereby extending component life. Furthermore, the stable fit reduces the frequency of failures caused by looseness or misalignment. The precise fit reduces debugging and correction time during production, improving production efficiency.

[0026] Furthermore, the outer diameter of the head cover is the same as that of the membrane tube, and the outer side contour curves of the head cover and the membrane tube are flush.

[0027] The end cap is flush with the outer cylindrical surface of the membrane tube. When the stainless steel clamp is tightened around the sides of the end cap and the membrane tube, the stability and balance of the tight connection between the end cap and the membrane tube are improved, preventing one end from tilting or tilting. After assembly, the entire ultrafiltration membrane assembly maintains a high degree of connection reliability.

[0028] Furthermore, a non-metallic anti-slip material (preferably a rubber pad) is provided on the inner side of the stainless steel clamp.

[0029] The rubber pad increases the friction between the stainless steel clamp and the fixed membrane tube and head cover to prevent the head cover from sliding along the circumferential direction of the membrane tube. The non-metallic anti-slip material will not cause wear to the membrane tube and the head cover, thereby ensuring the service life of the components.

[0030] Compared with the prior art, the present invention has the following beneficial effects: The ultrafiltration membrane assembly provided by the present invention has a simple and reasonable structure and strong integrity. The membrane tube and the membrane core are designed to be a detachable split structure, and independent head covers are designed at both ends of the membrane tube, and the head covers are provided with a water inlet, a water outlet and a water outlet. Under the premise of meeting the complete functions of the ultrafiltration membrane assembly, the membrane core can be separately removed from the membrane tube, so that when the old membrane core is replaced, the usable membrane shell (including the membrane tube) can be retained, thereby avoiding waste of resources and saving material costs. In addition, the structural design is optimized, and the installation and disassembly are convenient and quick, which saves time and improves the installation and maintenance efficiency, and has a broad prospect for promotion and application. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Various other advantages and benefits will become apparent to those skilled in the art by reading the following detailed description of the preferred embodiment.The accompanying drawings are only for the purpose of illustrating the preferred embodiment and are not to be considered as limiting the present invention.

[0032] In the attached figure: Figure 1 2 is a schematic structural diagram of an ultrafiltration membrane assembly provided with a quick-disassembly structure according to an embodiment of the present invention; Figure 2 This is a schematic diagram of the flange structure on the membrane tube according to an embodiment of the present invention; Figure 3 Schematic diagram of the structural connection between the wire distributor and the central tube according to an embodiment of the present invention.

[0033] The symbols in the accompanying drawings are: 1. Upper head cover, 2. Membrane tube, 3. Lower stainless steel clamp, 4. Lower head cover, 5. Upper stainless steel clamp, 6. Flange, 7. Wire distributor, 8. Center tube, 9. Groove, 10. Boss, 11. Concave. DETAILED DESCRIPTION

[0034] Exemplary embodiments will be described in detail herein, with examples illustrated in the accompanying drawings. In the following description, when referring to the drawings, identical numerals in different figures represent identical or similar elements, unless otherwise indicated. The embodiments described in the following exemplary embodiments are not intended to represent all possible embodiments consistent with the present disclosure. Rather, they are merely examples of apparatus and methods consistent with certain aspects of the present disclosure, as detailed in the appended claims.

[0035] The terms used in this disclosure are for the purpose of describing specific embodiments only and are not intended to limit the disclosure. As used in this disclosure and the appended claims, the singular forms "a," "an," "the," and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It should also be understood that the term "and / or" as used herein refers to and encompasses any and all possible combinations of one or more of the associated listed items.

[0036] It should be understood that although the terms first, second, and third may be used in this disclosure to describe various information, such information should not be limited to these terms. These terms are only used to distinguish information of the same type from each other. For example, without departing from the scope of this disclosure, first information may also be referred to as second information, and similarly, second information may also be referred to as first information. Depending on the context, the word "if" as used herein may be interpreted as "at the time of" or "when" or "in response to determining."

[0037] Example The embodiment of the present invention provides an ultrafiltration membrane assembly with a detachable membrane core, such as Figure 1 The device shown includes a membrane tube 2 and a quick-release structure. The quick-release structure is provided at both ends of the membrane tube 2. The quick-release structure includes a head cover and a stainless steel clamp. The head cover fits the end face of the membrane tube 2. The stainless steel clamp is tightly clamped to the head cover and the side of the membrane tube 2. The head cover is provided at both ends of the membrane tube 2, so that the membrane tube 2 can be opened and disassembled from both ends, solving the problem that the membrane tube 2 of the existing integrated ultrafiltration tube assembly cannot be disassembled. The head cover is tightly connected to the end of the membrane tube 2 by the stainless steel clamp, realizing quick disassembly and easy operation. Compared with the conventional threaded connection method, it improves installation and maintenance efficiency.

[0038] A water inlet and a water outlet are provided at the end of the head cover, and a water outlet is provided on the side of the head cover; a detachable membrane core is provided in the membrane tube 2. Sewage flows from the water inlet into the membrane tube 2 for filtration treatment. The water outlet discharges impurities, pollutants, and some concentrated water intercepted by the ultrafiltration membrane during the filtration process. These substances intercepted during the filtration process need to be regularly discharged from the membrane tube 2 through the water outlet. The water flowing out of the water outlet has been freed of most impurities, microorganisms, and harmful substances. It is pure water filtered through the ultrafiltration membrane and meets relatively high water quality standards.

[0039] The head cover includes an upper head cover 1 and a lower head cover 4, which are respectively arranged at the upper and lower ends of the membrane tube 2. The upper head cover 1 and the lower head cover 4 are respectively fastened to the membrane tube 2 via an upper stainless steel clamp 5 and a lower stainless steel clamp 3. The upper stainless steel clamp 5 and the lower stainless steel clamp 3 are respectively provided with bolts, a through-hole surface, and a compression surface. The bolts include a threaded screw and a nut. The screw passes through the through-hole surface and the compression surface of the upper stainless steel clamp 5 and the lower stainless steel clamp 3, and the nut is compressed on the side where the screw passes through the compression surface. In this embodiment, the upper stainless steel clamp 5 and the lower stainless steel clamp 3 each include two semicircular plates, which form a complete circular structure; the two semicircular plates are bolted together. The bolts are arranged in two symmetrical groups relative to the membrane tube 2, which can evenly compress the membrane tube 2 and improve the stability of the connection. When disassembling and assembling the ultrafiltration membrane assembly, the bolts of the stainless steel clamp can be removed with an adjustable wrench, so that the upper head cover 1 and the lower head cover 4 can be smoothly separated from the membrane tube 2. The old membrane core is removed from the membrane tube 2, and the new membrane core is pushed into the membrane tube 2. Then, the upper head cover 1 and the lower head cover 4 are connected to the membrane tube 2 through the stainless steel clamp, and the bolts of the stainless steel clamp are tightened with an adjustable wrench. This process completes the replacement of the membrane core, which not only utilizes the original membrane shell but also saves time. The semicircular split clamp consists of two semicircular plates connected together by bolts. The installation process is simple and quick, and does not require special tools and equipment, which greatly reduces the difficulty of installation. Through the tightening force of the bolts, the clamp can be tightly fixed to the fixed membrane tube 2 and the head cover, ensuring the firmness and reliability of the connection. In addition, the semicircular split clamp has a light structure, simple processing and manufacturing, low cost, and a wide range of applications. The upper stainless steel clamp 5 and the lower stainless steel clamp 3 are provided with oblong through-holes on their through-hole surfaces and circular connection holes on their clamping surfaces. The screw is passed through the through-hole and the connection hole, and the nut is pressed against the portion of the screw extending from the connection hole. The oblong hole length of the bolt through-hole allows the connection point to move within a certain range, avoiding stress concentration caused by rigid connection and making the component more stable in a vibrating environment. When the temperature changes, the oblong hole enables the equipment to expand and contract freely, avoiding the large restraining force caused by thermal expansion, thereby protecting the safety of the component. The oblong hole makes the assembly of the stainless steel clamp of the component more flexible, and it can be easily installed even if the tolerance is large, which improves the convenience of assembly.

[0040] The membrane core comprises a wire rack and an ultrafiltration membrane. The ultrafiltration membrane is wrapped around the wire rack. The wire rack comprises a central tube 8. The central tube 8 is located on the central axis of the membrane core. Wire distributors 7 (such as Figure 3The wire distribution frame adopts a split structure of the central tube 8 and the wire distribution device 7, which is convenient for production and processing. It also facilitates the assembly and disassembly between the wire distribution frame and the inner wall of the membrane tube 2. The wire distribution frame can be easily removed from the membrane tube 2, and the upper and lower wire distribution devices 7 and the central tube 8 can be replaced separately. The remaining parts can be reused, achieving the effect of saving resources and avoiding waste. After quickly replacing the membrane core, water can be passed through the operation.

[0041] The upper inner wall and the lower inner wall of the membrane tube 2 are each provided with a plurality of radially concentric flanges 6 (such as Figure 2 As shown, the outer circumference of the wire distributor 7 is provided with radial grooves 9 that match the flanges 6 (same size, height, and number). The grooves 9 are snap-fitted to the flanges 6. After the upper and lower wire distributors 7 are connected to the central tube 8 to form a wire distribution rack, the rack is placed inside the membrane tube 2, aligning the grooves 9 with the flanges 6 on the inner wall of the membrane tube 2 to prevent the rack from shifting within the membrane tube 2. When replacing the membrane core, the old membrane core, secured by the flanges 6 and grooves 9, is pushed out of the membrane tube 2, and the new membrane core is then pushed into the membrane tube 2 for replacement.

[0042] like Figure 1 As shown, the joint surfaces of the upper head cover 1 and the lower head cover 4 and the membrane tube 2 are of a stepped structure, a boss 10 (male stop) is provided on the end faces of the upper head cover 1 and the lower head cover 4, and a recessed platform 11 (female stop) is provided on the end face of the membrane tube 2, and the boss 10 and the recessed platform 11 are matched with a small gap.

[0043] The 11-11 design improves assembly precision and stability: The 11-11 design ensures precise relative positioning between the end cap and the membrane tube by interlocking the boss 10 (male stop) with the groove 9 (female stop), thereby enhancing assembly accuracy and stability. This design prevents component shifting or rotation during assembly, ensuring precise alignment. The 11-11 design increases contact area, enhancing the overall strength and rigidity of the structure. This allows for better stress distribution when subjected to external forces, reducing deformation and damage. This precise fit simplifies the installation process, making it easier and faster. The precise fit eliminates the need for additional fixings during installation, reducing installation time and labor costs. Extending service life: The precise fit reduces friction and wear between components, thereby extending component life. Furthermore, the stable fit reduces the frequency of failures caused by loosening or misalignment. This precise fit reduces debugging and correction time during production, improving production efficiency.

[0044] The outer diameter of the end cap is the same as that of the membrane tube 2 , and the outer side profile curves of the end cap and the membrane tube 2 are flush.

[0045] The end cap is flush with the outer cylindrical surface of the membrane tube 2. When the stainless steel clamp is tightened around the sides of the end cap and membrane tube 2, it improves the stability and balance of the tight connection between the end cap and membrane tube 2, preventing one end from tilting or tilting. After assembly, the entire ultrafiltration membrane assembly maintains a high degree of connection reliability.

[0046] An anti-slip rubber pad is installed on the inner side of the stainless steel clamp. The rubber pad increases the friction between the stainless steel clamp and the fixed membrane tube 2 and the head cover, preventing the head cover from sliding along the circumference of the membrane tube 2. As a non-metallic anti-slip material, the rubber pad will not cause wear to the membrane tube 2 and the head cover, thus ensuring the service life of the component.

[0047] The lower end of the lower head cover 4 is provided with a water inlet and a water outlet on the side; the upper end of the upper head cover 1 is provided with a water outlet and a water outlet on the side. The upper head cover 1 and the lower head cover 4 are connected to the upper and lower ends of the membrane tube 2 through the upper stainless steel clamp 5 and the lower stainless steel clamp 3 respectively, which facilitates quick assembly. The water outlets on the sides of the upper head cover 1 and the lower head cover 4 allow the pure water filtered by the membrane tube 2 through the ultrafiltration membrane to flow out, and the water outlet at the top of the upper head cover 1 can discharge impurities, pollutants and some concentrated water intercepted by the membrane tube 2 of the ultrafiltration membrane during the filtration process.

[0048] The embodiments of the present invention mainly include the following operations in actual field applications: After connecting the wire routing rack with the upper and lower wire routing devices 7 and the center tube 8, insert the membrane tube 2 and align the flange 6 inside the membrane tube 2 with the groove 9 of the wire routing device 7 to prevent displacement. Connect the upper and lower head covers 1 and 4 to the membrane tube 2 using the upper and lower stainless steel clamps 5 and 3.

[0049] When the ultrafiltration membrane assembly needs to be disassembled and replaced, the stainless steel clamp is disassembled by configuring ordinary assembly and disassembly tools. First, use an adjustable wrench to remove the bolts of the stainless steel clamp so that the upper and lower head covers can be smoothly separated from the membrane tube. Remove the upper stainless steel clamp 5 and the lower stainless steel clamp 3, then remove the upper and lower head covers 1 and the lower head cover 4. Then, use a rubber hammer or other tools to push the old membrane core (mainly the wire rack, sometimes with a small amount of ultrafiltration membrane) fixed by the groove 9 out of the membrane tube, and remove the upper and lower wire racks 7 and the center tube 8 from the membrane tube 2.

[0050] Then, use a tool such as a rubber hammer to push the new membrane core into the membrane tube. Place the new wire routing frame (consisting of two upper and lower wire routing devices 7 connected to a center tube 8) into the membrane tube 2. Align the flange 6 inside the membrane tube 2 with the groove 9 of the new wire routing device 7 to prevent displacement. Connect the upper and lower head covers 1 and 4 to the membrane tube 2 using the upper and lower stainless steel clamps 5 and 3. Tighten the bolts of the stainless steel clamps with an adjustable wrench to complete the assembly.

[0051] This process completes the replacement of the membrane core, which not only utilizes the original membrane shell, saves resources, but also saves time.

[0052] The ultrafiltration membrane assembly of this embodiment has a simple and reasonable structure and strong integrity. The membrane tube and the membrane core are designed to be a detachable split structure. Independent head covers are designed at both ends of the membrane tube, and the head covers are provided with a water inlet, a water outlet and a water outlet. Under the premise of meeting the complete functions of the ultrafiltration membrane assembly, the membrane core can be separately removed from the membrane tube, so that when the old membrane core is replaced, the usable membrane shell (including the membrane tube) can be retained, thereby avoiding waste of resources and saving material costs. In addition, the structural design is optimized, and installation and disassembly are convenient and quick, which saves time and improves installation and maintenance efficiency.

[0053] Thus far, the technical solutions of the present invention have been described in conjunction with the preferred embodiments shown in the accompanying drawings. However, it will be readily understood by those skilled in the art that the scope of protection of the present invention is obviously not limited to these specific embodiments. Without departing from the principles of the present invention, those skilled in the art may make equivalent changes or substitutions to the relevant technical features, and the technical solutions after such changes or substitutions will fall within the scope of protection of the present invention.

[0054] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Those skilled in the art will readily appreciate that the present invention is susceptible to various modifications and variations. Any modifications, substitutions, or improvements made within the spirit and principles of the present invention are intended to be within the scope of protection of the present invention.

Claims

1. An ultrafiltration membrane assembly with a detachable membrane core, characterized in that: include: Membrane tube and quick-release structure, the quick-release structure is arranged at both ends of the membrane tube, the quick-release structure includes a head cover and a stainless steel clamp, the head cover is fitted with the end face of the membrane tube, the stainless steel clamp is tightly clamped on the side of the head cover and the membrane tube, the end of the head cover is provided with a water inlet and a water outlet, and the side of the head cover is provided with a water production port; a detachable membrane core is provided in the membrane tube.

2. The ultrafiltration membrane assembly with a detachable membrane core according to claim 1, characterized in that: The head cover includes an upper head cover and a lower head cover respectively arranged at the upper end and the lower end of the membrane tube, and the upper head cover and the lower head cover are tightly connected to the membrane tube through an upper stainless steel clamp and a lower stainless steel clamp respectively; the bottom end of the lower head cover is provided with a water inlet, and the side is provided with a water outlet; the top end of the upper head cover is provided with a water outlet, and the side is provided with a water outlet.

3. The ultrafiltration membrane assembly with a detachable membrane core according to claim 2, characterized in that: The membrane core includes a wire distribution frame and an ultrafiltration membrane. The ultrafiltration membrane is wrapped on the wire distribution frame. The wire distribution frame includes a central tube. The central tube is located on the central axis of the membrane core. Wire distribution devices are fixedly provided at both ends of the central tube.

4. The ultrafiltration membrane assembly with a detachable membrane core according to claim 3, characterized in that: The upper inner wall and the lower inner wall of the membrane tube are each provided with a plurality of radially concentric flanges centered on the axis of the membrane tube, and the outer circumference of the wire distributor is provided with radial grooves matching the flanges, and the grooves are snap-connected to the flanges.

5. The ultrafiltration membrane assembly with a detachable membrane core according to claim 2, characterized in that: The upper stainless steel hoop and the lower stainless steel hoop are respectively provided with a bolt, a through-hole surface, and a clamping surface. The bolt includes a screw and a nut with threaded connection. The screw passes through the through-hole surface and the clamping surface of the upper stainless steel hoop and the lower stainless steel hoop, and the nut is pressed on the side of the screw passing through the clamping surface.

6. The ultrafiltration membrane assembly with a detachable membrane core according to claim 5, characterized in that: The upper stainless steel clamp and the lower stainless steel clamp are respectively provided with an oblong through-hole on the through-hole surface and a circular connecting hole on the pressing surface. The screw is passed through the through-hole and the connecting hole, and the nut is pressed on the part of the screw extending from the connecting hole.

7. The ultrafiltration membrane assembly with a detachable membrane core according to claim 6, characterized in that: The upper stainless steel hoop and the lower stainless steel hoop each include two semicircular plates, and the two semicircular plates form a complete circular structure; the two semicircular plates are bolted together.

8. The ultrafiltration membrane assembly with a detachable membrane core according to claim 2, characterized in that: The joint surfaces of the upper and lower head covers and the membrane tube are stepped structures. Bosses are provided on the end surfaces of the upper and lower head covers, and recesses are provided on the end surface of the membrane tube. The bosses and recesses are fitted with a small gap.

9. The ultrafiltration membrane assembly with a detachable membrane core according to claim 1, characterized in that: The outer diameter of the head cover is the same as that of the membrane tube, and the outer side profile curves of the head cover and the membrane tube are flush.

10. The ultrafiltration membrane assembly with a detachable membrane core according to claim 1, characterized in that: The inner side of the stainless steel hoop is provided with non-metallic anti-slip material.

Images