Modularized MBR (Membrane Bioreactor) membrane frame

Abstract

The utility model relates to a modularized MBR (Membrane Bioreactor) membrane frame which comprises a support body, the water collecting mechanism comprises first pipe bodies arranged on the support, at least one group of mounting beams arranged on one side of the first pipe bodies, a plurality of groups of second pipe bodies with one ends communicated with the first pipe bodies and the other ends closed and film curtains communicated with the second pipe bodies, and at least two mounting beams and at least two first pipe bodies are arranged in each group in the length direction; and the at least two mounting beams are connected with the first pipe body through a first module and a second module respectively. Through the arrangement, the membrane frame can be designed according to water quantity and suggested operating flux, the number of membrane curtains and the number of the membrane frames are determined, and the design of quick disassembly and modularization of the membrane frame is realized so as to cope with the condition that the operating flux is insufficient or the occupied space of the membrane frame is too large.

Description

Technical Field

[0001] The utility model relates to the technical field of membrane frames, in particular to a modular MBR membrane frame. Background Art

[0002] MBR, also known as membrane bioreactor, is a new type of sewage treatment equipment that combines ultrafiltration and microfiltration membrane separation technology with bioreactors in sewage treatment. It improves the overall removal efficiency of the reaction device for pollutants and ensures good effluent water quality. At the same time, it also makes the entire device have a strong ability to resist shock loads to various changes in the influent load (water quality and water volume), and can stably obtain high-quality effluent water quality.

[0003] When a traditional membrane frame is constructed, the MBR membrane is designed based on the water volume and the recommended operating flux, and the number of membrane curtains and membrane frames is determined. After the project is completed, if the system water load increases, causing the MBR membrane operating flux to increase or even exceed the recommended operating value, frequent backwashing and chemical cleaning will occur, and energy consumption will increase. If the membrane frame is replaced to increase the number of membrane curtains, the investment cost will increase, and the replaced membrane frame can only be recycled. Utility Model Content

[0004] Therefore, the technical problem to be solved by the utility model is to overcome the problem in the prior art that the membrane frame cannot be modularly assembled freely to determine the number of membrane curtains and the number of membrane frames, thereby providing a modular MBR membrane frame.

[0005] In order to solve the above technical problems, the utility model provides a modular MBR membrane frame, comprising:

[0006] Bracket body;

[0007] A water collecting mechanism comprises: a first tube body arranged on the bracket, at least one group of mounting beams arranged on one side of the first tube body, multiple groups of second tube bodies connected to the first tube body at one end and closed at the other end, and a membrane curtain connected to the second tube body, each group of the mounting beams and the first tube body is respectively provided with at least two along the length direction thereof, and at least two mounting beams and the first tube body are respectively connected via a first module and a second module.

[0008] In one embodiment of the utility model, each group of the mounting beams and the first tubes are respectively arranged on the upper and lower sides of the bracket body, and multiple groups of second tubes are also respectively arranged on the upper and lower sides of the bracket body and respectively connected to the first tubes and mounting beams in the corresponding horizontal directions.

[0009] In one embodiment of the utility model, the first module and the second module have the same structure, and both include: a third tube body, a first flange connected to both sides of the third tube body, and a corresponding second flange is provided at one end of the mounting beam or the first tube body close to the first module or the second module.

[0010] In one embodiment of the utility model, an aeration mechanism is also provided below the water collecting mechanism, and the aeration mechanism includes: a first air inlet pipe provided on the bracket body, an aeration beam respectively connected to the two ends of the first air inlet pipe, a plurality of aeration pipes provided between the aeration beams, and a second air inlet pipe connected to the first air inlet pipe at one end and connected to an air intake pump at the other end, and the aeration beam has at least two and a third module provided along its length, and its structure is the same as the first module.

[0011] In one embodiment of the utility model, the water collection mechanism further includes: a water collection pipe connected to the first pipe bodies on the upper and lower sides respectively, and a water outlet pipe with one end connected to the water collection pipeline and the other end connected to an external water pump.

[0012] In one embodiment of the present invention, the second tube body includes: an outer tube, a first tube assembly and a second tube assembly respectively sleeved on both ends of the second tube body, the first tube assembly is fixedly connected to the mounting beam, and the second tube assembly is connected to the first tube body.

[0013] In one embodiment of the utility model, the first tube assembly includes: a first inner tube coaxially sleeved on the inner circle of one end of the second tube body near the mounting beam, a first groove body arranged around the outer periphery of the first inner tube, a first sealing ring embedded in the first groove body, and a sealing plug sealingly connected between the first inner tube and the second tube body, the first inner tube is fixedly passed through the mounting beam, one side of the sealing plug also includes a flange and a plug-in portion, the flange extends between the first inner tube and the second tube body and fits the sealing ring, and the plug-in portion is plugged into the first inner tube.

[0014] In one embodiment of the utility model, the second tube assembly includes: a second inner tube coaxially sleeved on the inner circle of the second tube body close to one end of the first tube body, a second groove body arranged around the outer circumference of the second inner tube, and a second sealing ring embedded in the second groove body. The outer diameter of the second inner tube is adapted to the inner diameter of the second tube body, and a locking assembly is provided at the other end of the second inner tube.

[0015] In one embodiment of the utility model, the locking assembly includes: a sealing sleeve arranged at the second end of the second inner tube, a connecting piece arranged in the sealing sleeve, a threaded hole opened in the center of the connecting piece, a plurality of through holes arranged in a ring around the connecting piece, and a threaded rod having one end threadedly engaged with the threaded hole and the other end passing through the first tube body and threadedly engaged with another connecting piece, and the sealing sleeve is inserted into the side wall of the first tube body and is sealed and connected to the side wall of the first tube body.

[0016] In one embodiment of the present invention, a gasket is provided between the first flange and the second flange.

[0017] The above technical solution of the utility model has the following advantages compared with the prior art:

[0018] The modular MBR membrane frame described in the utility model collects and discharges sewage in the water treatment pool through a water collection mechanism, filters and purifies the sewage through a membrane curtain, supports the membrane curtain through a second pipe body, and the membrane curtain is hung by the second pipe body above and cooperates with the second pipe body below to be fixed and kept open. The sewage enters the second pipe body after being purified by the membrane curtain, and is collected and flows into the first pipe body under the negative pressure of an external water pump and flows out to the clean water pool. Through the set second module and first module, the membrane frame can be freely assembled with different numbers of first pipe bodies and mounting beams, so that different numbers of second pipe bodies and membrane curtains can be installed between the first pipe body and the mounting beam. It can be designed according to the water volume and the recommended operating flux, and the number of membrane curtains and membrane frames can be determined, realizing the quick-disassembly and modular design of the membrane frame, so that the membrane frame is no longer project unique, and the operating water volume in the later stage of the project can be estimated and flexibly adjusted. The number of membrane curtains can be increased by simply adding corresponding modules to cope with the situation that the operating flux is insufficient or the membrane frame occupies too much space. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to make the content of the utility model easier to understand, the utility model is further described in detail according to the specific embodiments of the utility model in combination with the accompanying drawings, wherein

[0020] Figure 1 It is a structural schematic diagram of the membrane frame of the utility model;

[0021] Figure 2 It is a cross-sectional view of the membrane frame of the utility model;

[0022] Figure 3 is a cross-sectional view of the second tube body of the utility model;

[0023] Figure 4 It is a structural schematic diagram of the first module of the utility model.

[0024] Explanation of the reference numerals in the specification: 1. bracket body; 2. first tube body; 3. second tube body; 4. first module; 5. membrane curtain; 6. mounting beam; 7. second module; 8. third module; 9. aeration beam; 10. second air inlet pipe; 11. outlet pipe; 12. water collecting pipe; 13. first air inlet pipe; 14. second inner tube; 15. threaded rod; 16. through hole; 17. sealing sleeve; 18. sealing plug; 19. first inner tube; 20. first flange; 21. third tube body; 22. flow channel hole. DETAILED DESCRIPTION

[0025] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments so that those skilled in the art can better understand the present invention and implement it, but the embodiments are not intended to limit the present invention. Example

[0026] Reference Figure 1-4 As shown, a modular MBR membrane frame of the utility model comprises:

[0027] Bracket body 1;

[0028] A water collecting mechanism comprises: a first tube body 2 arranged on the bracket, at least one group of mounting beams 6 arranged on one side of the first tube body 2, a plurality of groups of second tube bodies 3 connected to the first tube body 2 at one end and closed at the other end, and a membrane curtain 5 connected to the second tube body 3, wherein each group of mounting beams 6 and the first tube body 2 are respectively provided with at least two along the length direction thereof, and at least two mounting beams 6 and the first tube body 2 are respectively connected via a first module 4 and a second module 7.

[0029] The modular MBR membrane frame described in the utility model collects and discharges sewage in the water treatment pool through a water collection mechanism, filters and purifies the sewage through a membrane curtain 5, supports the membrane curtain 5 through a second pipe body 3, and the membrane curtain 5 is hung by the second pipe body 3 above and cooperates with the second pipe body 3 below to be fixed and kept open. The sewage enters the second pipe body 3 after being purified by the membrane curtain 5, and is collected and flows into the first pipe body 2 under the negative pressure of an external water pump and flows out to the clean water pool. Through the provided second module 7 and first module 4, the membrane frame can be freely assembled with different numbers of first pipe bodies 2 and mounting beams 6, so that different numbers of second pipe bodies 3 and membrane curtains 5 can be installed between the first pipe body 2 and the mounting beam 6. The membrane frame can be designed according to the water volume and the recommended operating flux to determine the number of membrane curtains 5 and the number of membrane frames, realizing the quick-disassembly and modular design of the membrane frame, so that the membrane frame is no longer project unique, and the operating water volume in the later stage of the project can be estimated and flexibly adjusted. The number of membrane curtains 5 can be increased by simply adding corresponding modules to cope with the situation of insufficient operating flux, which can reduce energy consumption per ton of water and reduce the investment cost of transformation.

[0030] See also Figure 2 As shown, each group of the mounting beams 6 and the first tube body 2 are respectively arranged on the upper and lower sides of the bracket body 1, and multiple groups of second tube bodies 3 are also respectively arranged on the upper and lower sides of the bracket body 1 and are respectively connected to the first tube body 2 and the mounting beams 6 in the corresponding horizontal directions. Multiple groups of mounting beams 6 and first tube bodies 2 are arranged along the length direction of the membrane frame. In the present embodiment, there are two groups. The two groups of mounting beams 6 and the first tube body 2 are connected through the first module 4 and the second module 7 respectively. Each group of mounting beams 6, the first tube body 2 and the second tube body 3 are arranged on the upper and lower sides of the membrane frame.

[0031] See also Figure 4As shown, the first module 4 and the second module 7 have the same structure, and both include: a third tube body 21, a first flange 20 connected to both sides of the third tube body 21, a corresponding second flange is provided at one end of the mounting beam 6 or the first tube body 2 close to the first module 4 or the second module 7, and the mounting beams 6 or the first tube body 2 or the second tube body 3 on both sides are connected by the third tube body 21, and both ends of the third tube body 21 are sealed by the first flange 20, and a second flange corresponding to the first flange 20 is also provided on the side of the first tube body 2 or the second tube body 3 close to the third tube body 21, and a gasket is provided between the first flange 20 and the second flange to improve the sealing degree, and the third tube body 21 of the first module 4 and the third module 8 is also provided with a flow channel hole 22 for ventilation or water, which can be connected to the second tube body 3 or the aeration pipe.

[0032] See also Figure 2 As shown, an aeration mechanism is also provided below the water collecting mechanism, and the aeration mechanism includes: a first air inlet pipe 13 provided on the bracket body 1, an aeration beam 9 respectively connected to both ends of the aeration pipe, a plurality of aeration pipes provided between the aeration beams 9, and a second air inlet pipe 10 having one end connected to the first air inlet pipe 13 and the other end connected to an air intake pump.

[0033] An aeration mechanism is also provided below the water collecting mechanism, and the aeration mechanism includes: a first air inlet pipe 13 provided on the support body 1, an aeration beam 9 respectively connected to the two ends of the first air inlet pipe 13, a plurality of aeration pipes provided between the aeration beams 9, and a second air inlet pipe 10 connected to the first air inlet pipe 13 at one end and externally connected to an air inlet pump at the other end. The aeration beam 9 has at least two third modules 8 provided along its length direction, and its structure is the same as that of the first module 4. Gas is pumped into the second air inlet pipe 10 and the first air inlet pipe 13 through an external air pump, and enters each aeration pipe through the aeration beam 9. Aeration holes are evenly provided in the aeration pipes, so that the pumped gas floats from bottom to top in the form of a large number of bubbles, so that the sewage in the pool contacts with the air for oxygenation, and the liquid is stirred to accelerate the transfer of oxygen in the air to the liquid, prevent the suspended objects in the pool from sinking, strengthen the contact between the organic matter in the pool and the microorganisms and dissolved oxygen, oxidize and decompose the organic matter in the sewage, thereby improving the purification effect of the membrane curtain 5.

[0034] Continue to see Figure 2 As shown, the water collecting mechanism also includes: a water collecting pipe 12 respectively connected to the first tube bodies 2 on the upper and lower sides, and a water outlet pipe 11 with one end connected to the water collecting pipe 12 and the other end connected to an external water pump. The purified water in the first tube bodies 2 on the upper and lower sides is led out through the water collecting pipe 12 and the water outlet pipe 11. When there are multiple groups of first tube bodies 2, the water collecting pipe 12 can collect the purified water in each group of first tube bodies 2 and introduce it into the water outlet pipe 11.

[0035] See also Figure 3As shown, the second tube body 3 includes: an outer tube, a first tube assembly and a second tube assembly respectively sleeved on both ends of the second tube body 3, the first tube assembly is fixedly connected to the mounting beam 6, the second tube assembly is connected to the first tube body 2, one side of the membrane curtain 5 is connected to the second tube body 3, and the second tube body 3 is provided with an opening which is connected to the flow channel of the membrane curtain 5 and is clamped.

[0036] The first tube assembly includes: a first inner tube 19 coaxially sleeved on the inner circle of one end of the second tube body 3 close to the mounting beam 6, a first groove body arranged around the outer periphery of the first inner tube 19, a first sealing ring embedded in the first groove body, and a sealing plug 18 sealingly connected between the first inner tube 19 and the second tube body 3. The first inner tube 19 is fixedly passed through the mounting beam 6. One side of the sealing plug 18 also includes a flange and a plug-in portion. The flange extends between the first inner tube 19 and the second tube body 3 and fits the sealing ring. The plug-in portion is plugged into the first inner tube 19. The second tube body 3 and the mounting beam 6 are sealed by the provided sealing plug 18.

[0037] The second tube assembly includes: a second inner tube 14 coaxially sleeved on the inner circle of one end of the second tube body 3 close to the first tube body 2, a second groove body arranged around the outer periphery of the second inner tube 14, and a second sealing ring embedded in the second groove body. The outer diameter of the second inner tube 14 is adapted to the inner diameter of the second tube body 3. A locking assembly is provided at the other end of the second inner tube 14. The second tube body 3 is connected to the first tube body 2 through the second inner tube 14.

[0038] Continue to see Figure 3 As shown, the locking assembly includes: a sealing sleeve 17 arranged at the second end of the second inner tube 14, a connecting piece arranged in the sealing sleeve 17, a threaded hole opened in the center of the connecting piece, a plurality of through holes 16 arranged in a ring on the connecting piece, and a threaded rod 15 with one end threadedly engaged with the threaded hole and the other end passing through the first tube body 2 and threadedly engaged with another connecting piece. The sealing sleeve 17 is inserted into the side wall of the first tube body 2 and is sealed and connected to the side wall of the first tube body 2. The locking assembly is used to fix the end of the second tube body 3 close to the first tube body 2 and achieve communication through the through hole 16.

[0039] Obviously, the above embodiments are merely examples for the purpose of clear explanation and are not intended to limit the implementation methods. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation methods here. The obvious changes or modifications derived from these are still within the scope of protection of the invention of the utility model.

Claims

1. A modular MBR membrane frame, characterized in that: include: Bracket body; A water collecting mechanism comprises: a first tube body arranged on the bracket, at least one group of mounting beams arranged on one side of the first tube body, multiple groups of second tube bodies connected to the first tube body at one end and closed at the other end, and a membrane curtain connected to the second tube body, each group of the mounting beams and the first tube body is respectively provided with at least two along the length direction thereof, and at least two mounting beams and the first tube body are respectively connected via a first module and a second module.

2. A modular MBR membrane frame according to claim 1, characterized in that: Each group of the mounting beams and the first tubes are respectively arranged on the upper and lower sides of the bracket body, and multiple groups of second tubes are also respectively arranged on the upper and lower sides of the bracket body and are respectively connected to the first tubes and mounting beams in the corresponding horizontal directions.

3. A modular MBR membrane frame according to claim 2, characterized in that: The first module and the second module have the same structure, and both include: a third tube body, a first flange connected to both sides of the third tube body, and a corresponding second flange is provided at one end of the mounting beam or the first tube body close to the first module or the second module.

4. A modular MBR membrane frame according to claim 1, characterized in that: An aeration mechanism is also arranged below the water collecting mechanism, and the aeration mechanism includes: a first air inlet pipe arranged on the bracket body, an aeration beam respectively connected to the two ends of the first air inlet pipe, a plurality of aeration pipes arranged between the aeration beams, and a second air inlet pipe connected to the first air inlet pipe at one end and externally connected to an air inlet pump at the other end. The aeration beam has at least two and a third module arranged along its length, and its structure is the same as the first module.

5. A modular MBR membrane frame according to claim 1, characterized in that: The water collecting mechanism further comprises: a water collecting pipe connected to the first pipe bodies at the upper and lower sides respectively, and a water outlet pipe connected to the water collecting pipeline at one end and connected to an external water pump at the other end.

6. A modular MBR membrane frame according to claim 1, characterized in that: The second pipe body comprises: an outer pipe, a first pipe assembly and a second pipe assembly respectively sleeved at two ends of the second pipe body, the first pipe assembly is fixedly connected to the mounting beam, and the second pipe assembly is communicated with the first pipe body.

7. A modular MBR membrane frame according to claim 6, characterized in that: The first tube assembly includes: a first inner tube coaxially sleeved on the inner circle of one end of the second tube body near the mounting beam, a first groove body arranged around the outer circumference of the first inner tube, a first sealing ring embedded in the first groove body, and a sealing plug sealingly connected between the first inner tube and the second tube body, the first inner tube is fixedly passed through the mounting beam, one side of the sealing plug also includes a flange and a plug-in portion, the flange extends between the first inner tube and the second tube body and fits the sealing ring, and the plug-in portion is plugged into the first inner tube.

8. A modular MBR membrane frame according to claim 6, characterized in that: The second tube assembly includes: a second inner tube coaxially sleeved on the inner circle of the second tube body close to one end of the first tube body, a second groove body arranged around the outer circumference of the second inner tube, and a second sealing ring embedded in the second groove body. The outer diameter of the second inner tube is adapted to the inner diameter of the second tube body, and a locking assembly is arranged at the other end of the second inner tube.

9. A modular MBR membrane frame according to claim 8, characterized in that: The locking assembly includes: a sealing sleeve arranged at the second end of the second inner tube, a connecting piece arranged in the sealing sleeve, a threaded hole opened in the center of the connecting piece, a plurality of through holes arranged in a ring around the connecting piece, and a threaded rod with one end threadedly engaged with the threaded hole and the other end passing through the first tube body and threadedly engaged with another connecting piece. The sealing sleeve is inserted into the side wall of the first tube body and is sealed and connected to the side wall of the first tube body.

10. A modular MBR membrane frame according to claim 3, characterized in that: A gasket is arranged between the first flange and the second flange.

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