A modular MBR curtain membrane frame

Abstract

This utility model discloses a modular MBR curtain membrane frame, relating to the field of ultrafiltration membrane technology. It includes a mounting frame, with an aeration mechanism movably mounted on the inner side of the bottom wall of the mounting frame. Four rectangularly distributed fixing plates are fixedly connected to the left and right sides of the mounting frame near the bottom. A permeate pipe is movably mounted in the middle of the inner side of the left wall of the mounting frame. A fixing mechanism is movably sleeved on the inner side of the mounting frame, and several horizontally distributed MBR membrane mounting frames are fixedly connected to the inner side of the fixing mechanism. This modular MBR curtain membrane frame, by directly placing multiple MBR membrane mounting frames on the fixing frame to form a single module, allows for quick replacement and maintenance of all MBR membranes by directly installing and removing the fixing frame. The fixing components facilitate rapid installation and removal of the fixing frame.

Description

Technical Field

[0001] This utility model relates to the field of ultrafiltration membrane technology, and in particular to a modular MBR curtain membrane frame. Background Technology

[0002] MBR curtain membrane frame is a key component used in membrane bioreactors (MBR). Its main function is to support and fix the curtain membrane module, thereby achieving efficient solid-liquid separation in wastewater treatment or reuse processes.

[0003] Chinese patent document CN207596556U discloses a novel MBR curtain-type membrane frame, including an air pipe frame, a water pipe frame, interfaces, a product water inlet, an aeration inlet, a support body, blind holes, a hydraulic rod, a movable clamp, and a rotating plate. The water pipe frame is assembled in the middle of the air pipe frame. Interfaces are assembled on the upper and lower parts of the front and rear sides of the water pipe frame. The product water inlet is located on the right side of the upper end face of the water pipe frame, and the aeration inlet is located on the upper side of the air pipe frame behind the product water inlet. This design makes the structure of the device compact and reasonable. Blind holes are opened on the left and right ends of the support body. The hydraulic rod is installed on the right side inside the blind hole. The movable clamp is connected to the hydraulic rod, and the right end of the movable clamp is assembled inside the blind hole. The rotating plate is connected to the movable clamp through a round shaft, which is assembled inside the movable clamp. This design improves the adaptability of the support body. This utility model has a compact structure, small size, good stability, and high reliability.

[0004] The existing technology has the following problems:

[0005] The MBR membrane is directly placed on the membrane frame assembly. However, in actual operation, multiple membrane frame assemblies are usually set on the membrane frame. Since the MBR membrane needs to be replaced and maintained regularly, all MBR membranes need to be removed during maintenance, which consumes a lot of time and occupies the maintenance time of the filtration device, making it difficult to use during this period. If the entire membrane frame is removed directly, since the membrane frame often has components with aeration and water circulation functions that are connected to the filtration device, installing a new membrane frame requires reconnecting these components, which also consumes time. Utility Model Content

[0006] This invention provides a modular MBR curtain membrane frame to solve the problems mentioned in the background art.

[0007] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows:

[0008] A modular MBR curtain membrane frame includes an installation frame. An aeration mechanism is movably installed on the inner side of the bottom wall of the installation frame. Four rectangular fixing plates are fixedly connected to the left and right sides of the installation frame near the bottom. A permeate pipe is movably installed in the middle of the inner side of the left wall of the installation frame. A fixing mechanism is movably sleeved on the inner side of the installation frame. Several horizontally distributed MBR membrane mounting frames are fixedly connected to the inner side of the fixing mechanism.

[0009] The fixing mechanism includes a fixing frame, with four rectangularly distributed fixing shafts fixedly connected to the bottom of the fixing frame. The outer sides of the fixing shafts are movably sleeved in the insertion holes near the front and rear sides of the inner bottom of the mounting bracket. Four rectangularly distributed fixing components are fixedly connected to the left and right sides of the fixing frame near the upper side via horizontal plates. Several rectangularly distributed connecting components are movably installed on the upper and lower walls of the fixing frame near the front and rear sides.

[0010] Preferably, the fixing component includes a mechanism sleeve, the outer side of which is movably sleeved on the upper wall of the mounting bracket near the front and rear sides, a plurality of annularly distributed ball bearings are movably sleeved on the inner side of the side wall of the mechanism sleeve, a limiting seat is movably sleeved on the inner side of the mechanism sleeve, a first spring is movably sleeved on the inner side of the mechanism sleeve and the first spring is located on the upper side of the limiting seat, and an annular groove is formed on the outer side of the limiting seat.

[0011] Preferably, the mounting bracket has four rectangularly distributed rotating plates rotatably connected to the top inner side near the four corners.

[0012] Preferably, a push seat is movably sleeved at the bottom of the limiting seat, and a rubber sheet is fixedly connected to the outer side of the push seat. The outer side of the rubber sheet is fixedly connected to the inner side of the upper wall of the mounting frame near the bottom.

[0013] Preferably, the connecting assembly includes a base, the outer side of which is movably mounted on the inner side of the upper and lower walls of the fixed frame near the front and rear sides. Two second springs distributed front and rear are fixedly connected to the side of the base away from the fixed frame. Movable seats are fixedly connected to the side of the second springs away from the base. Rotary seats are rotatably connected to the side of the movable seats away from the base. The inner sides of four rotating seats located on the same vertical plane are fixedly connected to the outer side of the MBR membrane placement frame near the four corners.

[0014] Preferably, two limiting rods distributed front to back are fixedly connected to the left and right sides of the inner front and rear sides of the upper wall of the mounting bracket. The upper side of the base located on the upper side is movably sleeved on the outer side of the limiting rods. Several horizontally distributed third springs are movably sleeved on the outer side of each of the two limiting rods. Four electric cylinders are fixedly connected to the upper side of the fixed frame near the front and rear sides. Two movable frames distributed left and right are fixedly connected to the left and right sides of the electric cylinders. The lower side of the movable frames is fixedly connected to the side of the four outermost bases located on the upper side that are close to each other.

[0015] Preferably, a flexible sleeve is fixedly connected between the outer sides of the base and the movable seat, and an elastic telescopic sleeve is movably sleeved on the outer sides of both limiting rods. The elastic telescopic sleeves are arranged alternately with the base, and the left and right sides of the elastic telescopic sleeves are fixedly connected to the sides of the base that are close to each other.

[0016] Due to the adoption of the above technical solution, the technological progress achieved by this utility model compared to the prior art is as follows:

[0017] This utility model provides a modular MBR curtain membrane frame, which uses a mounting frame, fixing mechanism, fixing frame, fixing shaft, fixing component, mechanism sleeve, ball bearing, limit seat, annular groove, first spring, rubber sheet, push seat, connecting component and MBR membrane placement frame in cooperation. By directly placing multiple MBR membrane placement frames on the fixing frame to form a single module, it is possible to quickly replace and maintain all MBR membranes by directly installing and removing the fixing frame when replacing and maintaining the MBR membrane. The fixing component makes the installation and removal of the fixing frame quick and easy.

[0018] This utility model provides a modular MBR curtain membrane frame, which uses a connecting component, base, second spring, movable seat, rotating seat, flexible sleeve, limiting rod, third spring, moving frame, electric cylinder, elastic telescopic sleeve and MBR membrane mounting frame in cooperation. The electric cylinder drives the moving frame to move, so that the left and right bases on the upper side move closer to each other, causing all MBR membrane mounting frames to be in an inclined state. Then, when performing mid-term maintenance of the MBR membrane, such as removing solid matter from the MBR membrane, the inclined MBR membrane mounting frames and the movable seat can quickly remove these solid matter by vibration, which is convenient for mid-term maintenance of the MBR membrane. Attached Figure Description

[0019] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0020] Figure 2 This is a partial cross-sectional three-dimensional structural schematic diagram of the present invention;

[0021] Figure 3 This is a three-dimensional structural diagram of the fixing frame part of this utility model;

[0022] Figure 4 This utility model Figure 2 Enlarged structural diagram of part A in the middle;

[0023] Figure 5 This is a partial cross-sectional three-dimensional structural diagram of the connecting component of this utility model.

[0024] In the diagram: 1. Mounting frame; 2. Aeration mechanism; 3. Fixing plate; 4. Product water pipe; 5. Fixing mechanism; 51. Fixing frame; 52. Fixing shaft; 53. Fixing component; 531. Mechanism sleeve; 532. Ball bearing; 533. Limiting seat; 534. Annular groove; 535. First spring; 536. Rubber sheet; 537. Push seat; 54. Connecting component; 541. Base; 542. Second spring; 543. Movable seat; 544. Rotating seat; 545. Flexible sleeve; 55. Limiting rod; 56. Third spring; 57. Moving frame; 58. Electric cylinder; 59. Rotating plate; 510. Elastic telescopic sleeve; 6. MBR membrane mounting frame. Detailed Implementation

[0025] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0026] like Figures 1-5 As shown, a modular MBR curtain membrane frame includes a mounting frame 1, an aeration mechanism 2 is movably mounted on the inner side of the bottom wall of the mounting frame 1, four rectangular fixed plates 3 are fixedly connected to the left and right sides of the mounting frame 1 near the bottom, a permeate pipe 4 is movably mounted in the middle of the inner side of the left wall of the mounting frame 1, a fixing mechanism 5 is movably sleeved on the inner side of the mounting frame 1, and several horizontally distributed MBR membrane mounting frames 6 are fixedly connected to the inner side of the fixing mechanism 5.

[0027] The fixing mechanism 5 includes a fixing frame 51. The bottom of the fixing frame 51 is fixedly connected to four rectangularly distributed fixing shafts 52. The outer side of the fixing shafts 52 is movably sleeved in the insertion holes near the front and rear sides of the inner bottom of the mounting bracket 1. The left and right sides of the fixing frame 51 are fixedly connected to four rectangularly distributed fixing components 53 near the upper side by a horizontal plate. Several rectangularly distributed connecting components 54 are movably installed on the upper and lower walls of the fixing frame 51 near the front and rear sides.

[0028] It should be noted that the MBR membrane mounting frame 6 is used to mount the MBR membrane and has a water outlet pipe on it. The pipes on multiple MBR membrane mounting frames 6 are connected to the same flexible hose, which is directly connected to the product water pipe 4. The fixing shaft 52 is used to fix the bottom of the fixing frame 51 so that it cannot move forward, backward, left or right. The fixing component 53 is used to fix the upper side of the fixing frame 51 so that the fixing frame 51 cannot be pulled out from the inside of the fixing frame 51.

[0029] like Figure 4 As shown, the fixing component 53 includes a mechanism sleeve 531. The outer side of the mechanism sleeve 531 is movably sleeved on the upper wall of the mounting bracket 1 near the front and rear sides. A plurality of annularly distributed ball bearings 532 are movably sleeved on the inner side of the side wall of the mechanism sleeve 531. A limiting seat 533 is movably sleeved on the inner side of the mechanism sleeve 531. A first spring 535 is movably sleeved on the inner side of the mechanism sleeve 531, and the first spring 535 is located on the upper side of the limiting seat 533. An annular groove 534 is provided on the outer side of the limiting seat 533.

[0030] It should be noted that, in the initial state, the annular groove 534 is located below the ball 532, so that the limiting seat 533 fixes the position of the ball 532. The outer side of the ball 532 is movably sleeved in the ball groove opened on the inner side of the upper wall of the mounting frame 1, so that the ball 532 fixes the fixed frame 51. Pushing the limiting seat 533 upwards makes the annular groove 534 aligned with the ball 532, so that the mechanism sleeve 531 can be pulled out from the inner side of the upper wall of the mounting frame 1.

[0031] like Figure 4 As shown, four rectangular rotating plates 59 are rotatably connected to the top inner side of the mounting bracket 1 near the four corners.

[0032] It should be noted that a torsion spring is provided between the rotating plate 59 and the mounting bracket 1 to drive the rotating plate 59. After the limit seat 533 is pushed up, the rotating plate 59 automatically moves to the lower position of the limit seat 533, so that the limit seat 533 cannot move down.

[0033] like Figure 4 As shown, a push seat 537 is movably sleeved at the bottom of the limiting seat 533, and a rubber sheet 536 is fixedly connected to the outside of the push seat 537. The outside of the rubber sheet 536 is fixedly connected to the inner side of the upper wall of the mounting bracket 1 near the bottom.

[0034] It should be noted that the push seat 537 and the rubber sheet 536 work together, and at the same time, the horizontal plates on the left and right sides of the fixing frame 51 near the upper side are provided with rubber rings, so that the mechanism sleeve 531 is in a closed state, preventing external moisture and debris from entering the cavity where the mechanism sleeve 531 is located, which would increase the friction between the parts and prevent the parts from rusting.

[0035] like Figure 5As shown, the connecting assembly 54 includes a base 541. The outer side of the base 541 is movably mounted on the inner side of the upper and lower walls of the fixed frame 51 near the front and rear sides. Two second springs 542 distributed front and rear are fixedly connected to the side of the base 541 away from the fixed frame 51. Movable seats 543 are fixedly connected to the side of the second springs 542 away from the base 541. Rotating seats 544 are rotatably connected to the side of the movable seats 543 away from the base 541. The inner sides of the four rotating seats 544 located on the same vertical plane are fixedly connected to the outer side of the MBR membrane placement frame 6 near the four corners.

[0036] It should be noted that the lower base 541 is fixedly connected to the bottom of the fixed frame 51, and the upper base 541 is slidably connected to the upper side of the fixed frame 51. Due to the setting of the second spring 542, the movable seat 543 is in an active state, so that the whole can use the vibration component to shake off the debris on the MBR membrane, so that it will not clog the MBR membrane.

[0037] like Figure 5 As shown, two limiting rods 55 are fixedly connected to the left and right sides of the front and rear sides of the inner side of the upper wall of the mounting bracket 1. The upper side of the base 541 located on the upper side is movably sleeved on the outside of the limiting rods 55. Several horizontally distributed third springs 56 are movably sleeved on the outside of the two limiting rods 55. Four electric cylinders 58 are fixedly connected to the upper side of the fixed frame 51 near the front and rear sides. Two movable frames 57 are fixedly connected to the left and right sides of the electric cylinders 58. The lower side of the movable frame 57 is fixedly connected to the side of the four outermost bases 541 located on the upper side that are close to each other.

[0038] It should be noted that the third spring 56 and the base 541 are arranged alternately. The electric cylinder 58 can drive the moving frame 57 to move, causing the moving frame 57 to drive the four outermost bases 541 at the top to move closer to each other. Due to the presence of the third spring 56, the upper sides of all MBR membrane mounting frames 6 are brought together, so that the MBR membrane mounting frames 6 are in an inclined state, which improves the effect of shaking off debris from the MBR membrane.

[0039] like Figure 5 As shown, a flexible sleeve 545 is fixedly connected between the outer sides of the base 541 and the movable seat 543. An elastic telescopic sleeve 510 is movably sleeved on the outer sides of the two limiting rods 55. The elastic telescopic sleeves 510 and the base 541 are arranged alternately. The left and right sides of the elastic telescopic sleeves 510 are fixedly connected to the sides of the base 541 that are close to each other.

[0040] It should be noted that the elastic telescopic sleeve 510 is double-layered, and the third spring 56 is located between the two elastic telescopic sleeves 510. The elastic telescopic sleeve 510 is used to protect the third spring 56, and the flexible sleeve 545 is used to protect the second spring 542 to prevent it from being immersed in water, which would affect the service life of the components.

[0041] The working principle of this utility model is as follows: First, the MBR membrane mounting frame 6 is used to mount the MBR membrane, and it is equipped with a water outlet pipe. The pipes on multiple MBR membrane mounting frames 6 are connected to the same flexible hose, which is directly connected to the product water pipe 4. The fixing shaft 52 is used to fix the bottom of the fixing frame 51, preventing it from moving forward, backward, left, or right. The fixing component 53 is used to fix the upper side of the fixing frame 51, preventing the fixing frame 51 from being pulled out from the inside. In the initial state, the annular groove 534 is located below the ball bearing 532, so that the limiting seat 533 fixes the position of the ball bearing 532. The outer side of the ball bearing 532 is movably fitted into the ball groove on the inner side of the upper wall of the mounting frame 1, causing the ball bearing 532 to fix the fixed frame 51. Pushing the limit seat 533 upwards aligns the annular groove 534 with the ball bearing 532, allowing the mechanism sleeve 531 to be pulled out from the inner side of the upper wall of the mounting frame 1. By directly placing multiple MBR membrane mounting frames 6 onto the fixed frame 51 to form a single module, this allows for quick replacement and maintenance of all MBR membranes by directly installing and removing the fixed frame 51. The fixing component 53 ensures the stability of the MBR membrane. The fixed frame 51 can be quickly installed and disassembled. Finally, the lower base 541 is fixedly connected to the bottom of the fixed frame 51, and the upper base 541 is slidably connected to the upper side of the fixed frame 51. Due to the setting of the second spring 542, the movable seat 543 is in a movable state, so that the whole can use the vibration component to shake off the debris on the MBR membrane, so as not to clog the MBR membrane. The third spring 56 is arranged alternately with the base 541. The electric cylinder 58 can drive the moving frame 57 to move, so that the moving frame 57 drives the four outermost bases 541 at the top to move closer to each other. Due to the presence of the third spring 56, The upper sides of all the MBR membrane mounting frames 6 are brought closer together, making the MBR membrane mounting frames 6 tilted, which improves the effect of shaking off debris from the MBR membrane. The moving frame 57 is moved by the electric cylinder 58, which makes the left and right bases 541 on the upper side closer together, causing all the MBR membrane mounting frames 6 to be tilted. Then, when performing mid-term maintenance on the MBR membrane, such as removing solid matter from the MBR membrane, the tilted MBR membrane mounting frames 6 and the movable seat 543 can use vibration to quickly remove these solid matter, which is convenient for mid-term maintenance of the MBR membrane.

[0042] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A unit modular MBR curtain membrane rack, comprising a mounting rack (1), characterized in that: An aeration mechanism (2) is movably installed on the inner side of the bottom wall of the mounting frame (1). Four rectangular fixed plates (3) are fixedly connected to the left and right sides of the mounting frame (1) near the bottom. A product water pipe (4) is movably installed in the middle of the inner side of the left wall of the mounting frame (1). A fixing mechanism (5) is movably sleeved on the inner side of the mounting frame (1). Several horizontally distributed MBR membrane placement frames (6) are fixedly connected to the inner side of the fixing mechanism (5). The fixing mechanism (5) includes a fixing frame (51), and four rectangularly distributed fixing shafts (52) are fixedly connected to the bottom of the fixing frame (51). The outer side of the fixing shafts (52) is movably sleeved in the insertion holes near the front and rear sides of the inner bottom of the mounting bracket (1). Four rectangularly distributed fixing components (53) are fixedly connected to the left and right sides of the fixing frame (51) near the upper side by a horizontal plate. Several rectangularly distributed connecting components (54) are movably installed on the upper and lower walls of the fixing frame (51) near the front and rear sides.

2. A modular MBR curtain membrane rack according to claim 1, characterized in that: The fixing component (53) includes a mechanism sleeve (531). The outer side of the mechanism sleeve (531) is movably sleeved on the upper wall of the mounting bracket (1) near the front and rear sides. The inner side of the side wall of the mechanism sleeve (531) is movably sleeved with a plurality of annularly distributed ball bearings (532). The inner side of the mechanism sleeve (531) is movably sleeved with a limiting seat (533). The inner side of the mechanism sleeve (531) is movably sleeved with a first spring (535), and the first spring (535) is located on the upper side of the limiting seat (533). The outer side of the limiting seat (533) is provided with an annular groove (534).

3. A modular MBR curtain membrane rack according to claim 2, characterized in that: The mounting bracket (1) has four rectangular rotating plates (59) rotatably connected to the top inner side near the four corners.

4. A modular MBR curtain membrane rack according to claim 3, characterized in that: The bottom of the limiting seat (533) is movably sleeved with a push seat (537), and a rubber sheet (536) is fixedly connected to the outside of the push seat (537). The outside of the rubber sheet (536) is fixedly connected to the inner side of the upper wall of the mounting bracket (1) near the bottom.

5. The modular MBR curtain membrane skid of claim 1, wherein: The connecting assembly (54) includes a base (541). The outer side of the base (541) is movably installed on the inner side of the upper and lower walls of the fixed frame (51) near the front and rear sides. Two second springs (542) are fixedly connected to the side of the base (541) away from the fixed frame (51). A movable seat (543) is fixedly connected to the side of the second spring (542) away from the base (541). A rotating seat (544) is rotatably connected to the side of the movable seat (543) away from the base (541). The inner side of the four rotating seats (544) located on the same vertical plane is fixedly connected to the outer side of the MBR membrane placement frame (6) near the four corners.

6. A modular MBR curtain membrane rack according to claim 5, characterized in that: The upper wall of the mounting bracket (1) has two limiting rods (55) fixedly connected to the left and right sides of the front and rear sides. The upper side of the base (541) located on the upper side is movably sleeved on the outside of the limiting rods (55). Several third springs (56) are movably sleeved on the outside of the two limiting rods (55). Four electric cylinders (58) are fixedly connected to the upper side of the fixed frame (51) near the front and rear sides. Two movable frames (57) are fixedly connected to the left and right sides of the electric cylinders (58). The lower side of the movable frame (57) is fixedly connected to the side of the four outermost bases (541) located on the upper side that are close to each other.

7. A modular MBR curtain membrane rack according to claim 6, characterized in that: A flexible sleeve (545) is fixedly connected between the outer sides of the base (541) and the movable seat (543). An elastic telescopic sleeve (510) is movably sleeved on the outer sides of the two limiting rods (55). The elastic telescopic sleeve (510) and the base (541) are arranged alternately. The left and right sides of the elastic telescopic sleeve (510) are fixedly connected to the side of the base (541) that is close to each other.

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