Hollow fiber nanofiltration membrane assembly with replaceable filter element

Abstract

The utility model relates to the technical field of nanofiltration membrane filter elements, and discloses a hollow fiber nanofiltration membrane assembly with a replaceable filter element, which comprises a mounting seat, a filter element seat mounted in the mounting seat, a filter element part mounted in the filter element seat, and a dismounting assembly convenient for dismounting and replacing the filter element part. According to the utility model, the filter element piece can be easily disassembled and assembled only by simply rotating the filter element piece, the operation is convenient and efficient, the filter element seat does not need to be replaced, the defect that an assembling and disassembling structure is generally arranged on the filter element piece in the prior art is skillfully avoided, the use cost is obviously reduced, and the practicability is high. And the connection and separation operation between the filter element seat and the mounting seat can be quickly completed, so that a firm guarantee is provided for the stable fixation of the filter element seat on the mounting seat, and the problem of connection looseness possibly caused by factors such as vibration and pressure fluctuation in the working process of the nanofiltration membrane assembly is effectively solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to nanofiltration membrane filter core technical field, specifically to a hollow fiber nanofiltration membrane assembly of replaceable filter core. BACKGROUND

[0002] Hollow fiber nanofiltration membrane assembly is a kind of ultrafiltration membrane, it is the most mature and advanced technology in ultrafiltration technology.Ultrafiltration membrane purification technology adopts high-precision pure physical filtration principle, and the filtration precision is 0.1-0.001 microns, without adding any chemical substance, relies on the micro-porous screen of ultrafiltration membrane surface, to retain harmful substances, to realize the effect of filtration purification, purification.Iron rust, particles, bacteria, colloids and part of organic matter in water are retained, the pH value of product water is kept unchanged, and trace minerals and trace dissolved oxygen required by human body in water are retained.

[0003] The existing hollow fiber nanofiltration membrane assembly is fixed in the shell to carry out stable filtration work, and the assembly operation is relatively cumbersome, and the existing hollow fiber filter core is mostly installed and disassembled structure to be disassembled and replaced, in the process of frequently replacing filter core parts, filter core parts or related components are easily damaged.Meanwhile, when replacing filter core parts, filter core seat may also need to be replaced, which undoubtedly greatly improves the use cost, brings many inconveniences to actual application, and when facing the vibration, pressure fluctuation and other situations generated in the working process of nanofiltration membrane assembly, it is difficult to ensure the firmness of connection.The problem of loose connection is prone to occur, and then the normal operation of nanofiltration membrane assembly is affected, and the stability and reliability of the equipment are reduced.

[0004] Therefore, we propose a hollow fiber nanofiltration membrane assembly with replaceable filter core to solve the above problems. INVENTION CONTENTS

[0005] The utility model aims at providing a hollow fiber nanofiltration membrane assembly with replaceable filter core to solve the problem that frequent replacement of filter core requires synchronous replacement of disassembly assembly, increases cost, and is unstable in connection and prone to looseness.

[0006] To achieve the above object, the utility model provides the following technical scheme: a hollow fiber nanofiltration membrane assembly with replaceable filter core, comprising a mounting seat, a filter core seat is installed in the mounting seat, and a filter core part is installed in the filter core seat.

[0007] Further comprising a disassembly assembly, the disassembly assembly comprises a detachable part and a replacement part, the detachable part and the replacement part facilitate the disassembly and replacement of the filter element seat and the filter element, the detachable part comprises a rotating rod, the rotating rod is rotationally connected to the filter element seat, a control rod is fixedly sleeved on the top surface of the rotating rod, a latch is inserted on the end side of the control rod, a bevel gear is coaxially sleeved on the rotating rod, a support plate is fixedly arranged in the filter element seat, a screw rod is rotationally connected in the middle of the support plate, a bevel gear is fixedly connected at the end of the screw rod, and the screw rod is threadedly sleeved outside.

[0008] Preferably, the replacement part comprises:

[0009] A clamping ring is fixed to the bottom surface of the filter element seat, the clamping ring is internally hollow, screw grooves are formed in the inner wall of the clamping ring, and a cover is fixed to the upper end and the lower end of the filter element, and the outer wall of the cover at the upper end is provided with threads which are threadedly connected with the screw grooves.

[0010] Preferably, the latch is inserted into the filter element seat, the filter element seat is internally hollow, and the bevel gear, the bevel gear, the support plate and the screw rod are all arranged in the hollow cavity in the filter element seat.

[0011] Preferably, the bevel gear, the screw rod and the insertion rod are symmetrically provided with two about the axis of the bevel gear, and the two bevel gears are meshed with the bevel gear.

[0012] Preferably, opposite sides of the filter element seat are provided with through holes, and the insertion rod is slidably connected with the through holes.

[0013] Preferably, the mounting seat is provided with an insertion hole, and the insertion hole is inserted with the insertion rod.

[0014] Compared with the prior art, the utility model has the advantages that:

[0015] 1、The utility model discloses a control rod, a rotating rod, a bevel gear, a bevel gear and a screw rod and other components precisely cooperate, and the connection and separation operation between the filter element seat and the mounting seat can be quickly and reliably completed.

[0016] 2, The utility model discloses a filter core piece cover screw connection mode of snap ring and filter core piece, greatly simplifies the replacement process of filter core piece. The operator only needs to rotate filter core piece simply, can realize the disassembly and installation of filter core piece easily, and the operation is convenient and efficient. In addition, the design does not need to replace filter core seat, ingeniously avoids the drawbacks of setting installation and dismounting structure on filter core piece in the prior art, and remarkably reduces the use cost. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is whole three -dimensional structure schematic diagram of the utility model;

[0018] Figure 2 It is mounting seat, filter core seat and filter core piece separation structure schematic diagram of the utility model;

[0019] Figure 3 It is whole cross section structure schematic diagram of the utility model;

[0020] Figure 4 It is the structure schematic diagram of the utility model's loading and unloading spare.

[0021] In the drawing: 1, mounting seat;101, jack;2, filter core seat;201, through -hole;21, snap ring;22, screw groove;3, filter core piece;31, cover;32, thread;4, dismounting assembly;41, rotating rod;42, control rod;421, bolt;43, bevel gear;44, bevel gear;45, support plate;46, screw;47, plug rod. DETAILED DESCRIPTION

[0022] The technical scheme in the embodiments of the utility model will be described clearly and completely below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of the utility model.

[0023] Embodiment one: please refer to Figures 1-4The application discloses a replaceable filter core hollow fiber nanofiltration membrane assembly which comprises a mounting base 1, a filter core seat 2 is arranged in the mounting base 1, and the filter core seat 2 is used for accommodating a filter core piece 3 which is matched with the filter core seat 2 in shape and size so as to ensure that the filter core piece 3 can be accurately mounted in the filter core seat 2 and cannot shake or displace during working process. The filter core piece 3 is a core filtering component of the nanofiltration membrane assembly and adopts a hollow fiber nanofiltration membrane technology. The hollow fiber nanofiltration membrane has a large specific surface area and good filtering performance, can effectively separate small molecular substances, ions and the like in a solution, and simultaneously allows water molecules and some specific small molecules to pass. When the nanofiltration membrane assembly works, fluid to be treated enters the filter core seat 2 through an interface on the mounting base 1 and then flows through the hollow fiber nanofiltration membrane of the filter core piece 3. Under the action of pressure, water molecules and some small molecular substances can pass through the nanofiltration membrane, and large molecular substances, ions and the like are intercepted, so that the separation and purification of the solution are realized.

[0024] The replaceable filter core hollow fiber nanofiltration membrane assembly further comprises a dismounting assembly 4 which is convenient for mounting the filter core seat 2. The dismounting assembly 4 comprises a replacement piece which comprises a snap ring 21 fixed to the bottom surface of the filter core seat 2 and arranged in a hollow mode. In order to adapt to the structure of the filter core piece 3 and realize the mounting of the filter core piece 3, a screw groove 22 is formed in the inner wall of the snap ring 21 and is matched with a thread 32 on the outer wall of an upper end cover 31 of the filter core piece 3 in size and shape. The filter core piece 3 is fixed in the filter core seat 2 in a threaded connection mode of the thread 32. The upper and lower ends of the filter core piece 3 are both fixed with the end cover 31 which protects the two ends of the hollow fiber nanofiltration membrane and prevents the hollow fiber nanofiltration membrane from being damaged. The outer wall of the end cover 31 is provided with the thread 32 which is used for connecting with the snap ring 21, realizing the mounting and fixing of the filter core piece 3, and screwing the thread 32 with the screw groove 22. The filter core piece 3 can be easily dismounted from the snap ring 21 by rotating the filter core piece 3, and the filter core piece 3 can be quickly and accurately mounted in place when being mounted.

[0025] Specifically, when the filter core piece 3 needs to be replaced, an operator can rotate the filter core piece 3 so that the thread 32 is gradually unscrewed from the screw groove 22. With the rotation, the connection between the filter core piece 3 and the snap ring 21 is gradually loosened until the filter core piece 3 is completely separated from the snap ring 21, and then the filter core piece 3 can be taken out from the filter core seat 2.

[0026] When installing the new filter element 3, the upper end cover 31 of the new filter element 3 is aligned with the snap ring 21, the threads 32 on the outer wall of the end cover 31 are aligned with the screw grooves 22 on the inner wall of the snap ring 21, and then the filter element 3 is rotated in the opposite direction, so that the threads 32 are gradually screwed into the screw grooves 22. With rotation, the filter element 3 is gradually tightly connected with the snap ring 21 until it is completely installed in place. In this way, the filter element 3 is firmly installed in the filter element seat 2, and the filter element seat 2 with the filter element 3 is installed back into the mounting seat 1, completing the entire installation process of the filter element 3. Through this disassembly and assembly method, the filter element 3 can be quickly and conveniently replaced to maintain the good filtering performance of the nanofiltration membrane assembly.

[0027] Example two: This embodiment is an improvement based on example one. For details, please refer to Figures 2-4 In this embodiment: A hollow fiber nanofiltration membrane assembly with replaceable filter elements further comprises a disassembly and assembly assembly 4, which further comprises a disassembly and assembly component, and the disassembly and assembly component comprises a rotating rod 41, which provides the basis for the rotation of the entire disassembly and assembly component. The rotating rod 41 is rotationally connected to the filter element seat 2, and a control rod 42 is fixedly sleeved on the top surface of the rotating rod 41. A latch 421 is inserted into the end side of the control rod 42. The presence of the latch 421 plays a role in locking and unlocking the control rod 42. When the latch 421 is inserted into the filter element seat 2, the control rod 42 is locked and cannot be rotated at will, ensuring the stability of the filter element seat 2 after being connected to the mounting seat 1. When it is necessary to disassemble the filter element seat 2, the latch 421 is pulled out, and the control rod 42 can be freely rotated, thereby driving other components to perform disassembly operations. A bevel gear 43 is coaxially sleeved on the rotating rod 41. When the operator rotates the control rod 42 and the rotating rod 41, the bevel gear 43 rotates and transmits power to the bevel gear 44 engaged therewith. A support plate 45 is fixed inside the filter element seat 2, and a screw rod 46 is rotationally connected in the middle of the support plate 45. The support plate is fixed inside the filter element seat 2 and plays a supporting and positioning role. It provides a stable support structure for the rotation of the screw rod 46, ensuring that the screw rod 46 does not shake or deviate during rotation. The screw rod 46 is fixedly connected to the bevel gear 44 at the end, and the screw rod 46 is sleeved with a screw rod 46 outside the threads 32.

[0028] The latch 421 is inserted into the filter element seat 2, and the filter element seat 2 is hollow inside. The bevel gear 43, the bevel gear 44, the support plate 45, and the screw rod 46 are all installed inside the hollow cavity of the filter element seat 2. The bevel gear 44, the screw rod 46, and the insertion rod 47 are symmetrically provided with two about the axis of the bevel gear 43. The two bevel gears 44 are engaged with the bevel gear 43, which changes the direction of power transmission.

[0029] The filter element seat 2 is provided with a through hole 201 on opposite sides, the insertion rod 47 is in sliding connection with the through hole 201, the mounting seat 1 is provided with an insertion hole 101, the insertion hole 101 is in insertion connection with the insertion rod 47, one end of the insertion rod 47 is in insertion connection with the insertion hole 101 in the mounting seat 1, when the insertion rod 47 is inserted into the insertion hole 101, the filter element seat 2 is connected with the mounting seat 1, when the insertion rod 47 is pulled out of the insertion hole 101, the filter element seat 2 can be disassembled from the mounting seat 1. The material of the insertion rod 47 needs to have certain strength and rigidity, so as to ensure reliable work during connection and disassembly, and can bear certain external force.

[0030] Specifically, during installation, the insertion rod 47 is in the through hole 201 of the filter element seat 2 in the initial state, the filter element seat 2 is clamped into the mounting seat 1, at this time, the insertion pin 421 is in the pulled-out state, the control rod 42 can be freely rotated, the operator rotates the control rod 42, drives the rotating rod 41 and the bevel gear 43 to rotate, the bevel gear 43 transmits power to the bevel gear 44 engaged therewith, the bevel gear 44 drives the screw rod 46 to rotate, the rotation of the screw rod 46 causes the component to move axially, thereby pushing the insertion rod 47 to slide out of the through hole 201 and move to the insertion hole 101 in the mounting seat 1, when the insertion rod 47 is completely inserted into the insertion hole 101, the insertion pin 421 is inserted, the control rod 42 is locked, at this time, the filter element seat 2 and the mounting seat 1 are firmly connected together, and the installation process is completed.

[0031] During disassembly, the insertion pin 421 is pulled out first, and the locking of the control rod 42 is released. Then the control rod 42 is reversely rotated, driving the rotating rod 41 and the bevel gear 43 to reversely rotate. The bevel gear 43 reversely rotates the screw rod 46 through the bevel gear 44, and the rotation of the screw rod 46 reversely moves the component outside the sleeve, thereby pulling the insertion rod 47 out of the insertion hole 101 in the mounting seat 1. When the insertion rod 47 is completely pulled out of the insertion hole 101, the filter element seat 2 can be taken out of the mounting seat 1, and the disassembly process is completed.

[0032] The contents not described in detail in the specification belong to the prior art known to those skilled in the art.

[0033] Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement to part of the technical features, any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the utility model shall be included in the protection scope of the utility model.

Claims

1. A replaceable cartridge hollow fiber nanofiltration membrane module comprising a mounting base (1), characterized in that: The installation seat (1) is provided with a filter core seat (2), and the filter core seat (2) is provided with a filter core piece (3); The installation seat (1) is provided with a filter core seat (2), and the filter core seat (2) is provided with a filter core piece (3); 2. A replaceable cartridge type hollow fiber nanofiltration membrane module according to claim 1, characterized in that: The dismounting assembly (4) comprises a mounting and dismounting piece and a replacement piece, the mounting and dismounting piece and the replacement piece facilitate the mounting and dismounting and replacement of the filter core seat (2) and the filter core piece (3), the mounting and dismounting piece comprises a rotating rod (41), the rotating rod (41) is rotationally connected to the filter core seat (2), a control rod (42) is fixedly sleeved on the top surface of the rotating rod (41), a latch (421) is inserted on the end side of the control rod (42), a bevel gear (43) is coaxially sleeved on the rotating rod (41), a supporting plate (45) is fixedly arranged in the filter core seat (2), a screw rod (46) is rotationally connected to the middle of the supporting plate (45), and a bevel gear (44) is fixedly connected to the end of the screw rod (46). The screw rod (46) is externally provided with a screw rod (46). The replacement piece comprises:

3. A replaceable cartridge type hollow fiber nanofiltration membrane module according to claim 1, characterized in that: A clamping ring (21) is fixed to the bottom surface of the filter core seat (2), the clamping ring (21) is hollow, a screw groove (22) is formed in the inner wall of the clamping ring (21), and a cover (31) is fixed to the upper and lower ends of the filter core piece (3). The outer wall of the upper cover (31) is provided with a screw thread (32), and the screw thread (32) is connected with the screw groove (22).

4. A replaceable cartridge type hollow fiber nanofiltration membrane module according to claim 3, characterized in that: The latch (421) is inserted into the filter core seat (2), the filter core seat (2) is hollow, and the bevel gear (43), the bevel gear (44), the supporting plate (45) and the screw rod (46) are arranged in the hollow cavity of the filter core seat (2).

5. A replaceable cartridge type hollow fiber nanofiltration membrane module according to claim 4, characterized in that: The bevel gear (44) and the screw rod (46) are symmetrically provided with two about the axis of the bevel gear (43), and the two bevel gears (44) are engaged with the bevel gear (43).

6. A replaceable cartridge type hollow fiber nanofiltration membrane module according to claim 4, characterized in that: The filter core seat (2) is provided with a through hole (201) on the opposite sides, and the plug rod (47) is slidably connected with the through hole (201). The installation seat (1) is provided with a plug hole (101), and the plug hole (101) is inserted with the plug rod (47).

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