CN216106206U

CN216106206U - Aeration balanced MBR membrane module

Info

Publication number: CN216106206U
Application number: CN202122795754.9U
Authority: CN
Inventors: 李海波
Original assignee: Huaershi Wuhan Environmental Technology Co ltd
Current assignee: Huaershi Wuhan Environmental Technology Co ltd
Priority date: 2021-11-16
Filing date: 2021-11-16
Publication date: 2022-03-22
Anticipated expiration: 2031-11-16

Abstract

The utility model provides an MBR (membrane bioreactor) membrane assembly with balanced aeration, which comprises a membrane frame, membranes, water collecting pipes, an air inlet pipe, aeration pipes and adjusting devices, wherein each adjusting device comprises an adjusting screw rod, a fixing lug fixed on the membrane frame and a fixing nut fixed on the fixing lug, the fixing lug is provided with a mounting hole, the adjusting screw rod is provided with a thread matched with the fixing nut, the adjusting screw rods penetrate through mounting ports and the fixing nuts and are connected to the fixing nuts through the threads, the adjusting devices are more than four, the aeration pipes are horizontally arranged at the bottom of the membranes, the aeration pipes are connected with supports, the bottom ends of the adjusting screw rods are connected with the supports through spherical hinges, and the aeration pipes are connected with the air inlet pipe through corrugated hoses. This MBR membrane module simple structure directly adjusts the aeration balance of aeration pipe through adjusting device, need not to adjust whole MBR membrane module, and aeration regulation is convenient simple to can be applicable to and fall to ground installation and hang the installation.

Description

Aeration balanced MBR membrane module

Technical Field

The utility model relates to a membrane bioreactor, in particular to an MBR (membrane bioreactor) membrane component for aeration balance, belonging to the technical field of water treatment equipment

Background

Membrane Bioreactors (MBR) are an emerging technology that combines membrane technology with biochemical reactions in sewage treatment, also known as membrane separation activated sludge process. The Membrane Bioreactor (MBR) filters the sludge-containing sewage in the biochemical reaction tank by using a membrane to realize sludge-water separation. When in use, the MBR membrane is generally manufactured into a membrane component form, so that the MBR membrane is convenient to transport and install. The MBR membrane module generally comprises a membrane frame, membranes, a water collecting pipe, an aeration pipe and other components, wherein membrane filaments of all the membranes are connected to the water collecting pipe, and when the MBR membrane module is used, the MBR membrane module is placed in a biochemical tank with higher sludge concentration, and is connected with the water collecting pipe through a self-priming pump to suck vacuum, so that sewage is filtered by the membrane filaments and then is sucked out; when the MBR membrane module produces water, in order to ensure that the sludge in the biochemical tank is uniform, the surface of the membrane filaments is not attached by the sludge to block the membrane filaments when the MBR membrane module is cut, and the bottom of the MBR membrane module is required to be provided with an aeration pipe for uniform aeration. However, once the bottom aeration is uneven, the aeration amount of partial membrane filaments is small, which can cause sludge adhesion and blockage, and the membrane flux of the whole membrane module is reduced after long-time operation, thereby affecting the effluent quality and water yield and further affecting the service life of the MBR. Therefore, the MBR membrane module requires balanced and uniform aeration of the bottom aeration pipe during use.

The conventional MBR membrane module is generally arranged in two modes, one mode is that the MBR membrane module is placed at the bottom of a tank, support legs of the MBR membrane module are supported at the bottom of the tank, and horizontal displacement is limited by arranging guide rods at two sides of the MBR membrane module; the other type is suspension installation, and is suspended to fixed positions at two sides of the tank body through hangers at the upper part of the MBR; when the MBR membrane module is obliquely placed (the bearing platform at the bottom of the tank is not level enough, or foreign matters exist on the bearing platform, or the bottom of the membrane tank is not settled uniformly, and other reasons cause the MBR membrane frame device to be obliquely placed) or the aeration pipe and the membrane frame module are not level enough, so that the aeration is not uniform, part of the membrane is not aerated to the ideal aeration amount, the pollution and blockage probability of the MBR membrane is increased, and the integral working efficiency and the working quality are influenced. Both of these installation forms require the aeration pipe at the bottom of the MBR membrane module to be kept horizontal during manufacture and installation, but are not easily adjustable because the aeration pipe assembly and the MBR membrane module are fixedly connected together. In addition, even if the horizontal position of the MBR membrane module is adjusted as required in the installation and debugging process, the horizontal position of the whole membrane module can be shifted after long-time accumulation due to the aeration effect and the water flow effect in the operation process of the membrane module, so that the aeration is uneven, and the effluent quality and the blockage and normal operation of the MBR membrane are influenced.

To the bottom of the pool mounting means that falls to the ground, patent CN204356136U discloses a can be in service adjust MBR membrane group ware levelness's device, the device through the adjusting screw adjustment membrane group ware's that the bottom set up levelness to adjust the aeration levelness. In addition to hanging the mounting means, patent CN205367859 discloses a MBR membrane frame device with adjustable hang, and the device makes MBR membrane frame device bottom level through the regulation to MBR membrane frame device's the pole height that hangs to ensure that MBR membrane frame device can evenly receive the aeration. However, the two technical solutions have the following problems: the MBR membrane module is generally heavier, and the person of heaviness is as many as several tons, and adjusting screw or suspension rod is supporting whole membrane module during the actual use, and screw or suspension rod need very big strength when adjusting, and the screw thread of the bolt on adjusting screw or suspension rod bears the membrane module gravity for a long time and is out of shape easily and easy corrosion simultaneously.

Disclosure of Invention

In order to solve the defects in the prior art, the utility model provides the MBR membrane module with balanced aeration, which has a simple structure, directly adjusts the aeration balance of the aeration pipe through an adjusting device, does not need to adjust the whole MBR membrane module, has low requirement on the levelness of installation and manufacture of each part, saves the manufacturing time, is quick and convenient to install, is convenient and simple to adjust the aeration, and can be suitable for ground installation and suspension installation.

The technical scheme adopted by the utility model for solving the technical problem is as follows:

an aeration balanced MBR membrane assembly comprises a membrane frame, a membrane, a water collecting pipe, an air inlet pipe, an aeration pipe and an adjusting device, wherein the membrane, the water collecting pipe and the air inlet pipe are fixedly arranged in the membrane frame, the upper water outlet end and the lower water outlet end of the membrane are both connected with the water collecting pipe, the aeration pipe is positioned in the membrane frame, the adjusting device comprises an adjusting screw rod, a fixing lug and a fixing nut, the adjusting screw rod is vertically arranged, the fixing lug is fixed on the membrane frame, the fixing lug is provided with a mounting hole, the adjusting screw rod is provided with a thread matched with the fixing nut, the adjusting screw rod penetrates through the mounting hole and the fixing nut and is connected onto the fixing nut through the thread, the adjusting device is provided with more than four parts which are symmetrically distributed on the membrane frame, the aeration pipe is horizontally arranged at the bottom of the membrane, the aeration pipe is connected with a support, the bottom end of the adjusting screw rod is connected with the support through a spherical hinge, so that the aeration pipe is suspended under the adjusting screw rod, the aeration pipe and the air inlet pipe are connected through a corrugated hose, and the aeration balance of the aeration pipe is adjusted by screwing an adjusting screw.

The fixing lugs are fixed on the upper and lower beams of the membrane frame.

The length of the thread is matched with the adjusting height of the support.

And the top end of the adjusting screw rod is fixedly connected with an adjusting nut.

The membrane frame is rectangular frame structure, and the bottom of membrane frame is provided with four landing legs, and the top of membrane frame is provided with the screw connecting plate, is connected with the hangers that are used for suspension installation on the screw connecting plate.

The diaphragm is of a plate type or sheet type structure.

And slings for hoisting and transporting are connected and arranged at four corners of the top of the film frame.

The utility model has the beneficial effects based on the technical scheme that: (1) the MBR membrane module provided by the utility model directly adjusts the aeration balance of the aeration pipe through the adjusting device, the whole MBR membrane module is not required to be adjusted, the adjustment is simple and convenient, and the time and the labor are saved. (2) The aeration adjusting device provided by the utility model is suitable for MBR membrane modules in a floor installation and suspension installation mode, and has a wide application range. (3) The MBR membrane module provided by the utility model has lower requirements on the levelness of the tank body, and is convenient and quick to install. (4) The MBR membrane module provided by the utility model has a simple structure, low levelness of installation and manufacture of the aeration pipe of the MBR membrane module, saved manufacturing time and low cost.

Drawings

FIG. 1 is a left side view of an aeration-balanced MBR membrane module provided by the present invention;

FIG. 2 is a front view of an MBR membrane module for aeration equalization provided by the present invention;

FIG. 3 is a top view of an MBR membrane module for providing aeration equalization in accordance with the present invention;

FIG. 4 is a schematic view of the connection between the adjusting device and the aeration pipe;

in the figure: 1-a membrane frame, 2-a membrane, 3-a water collecting pipe, 4-an air inlet pipe, 5-an aeration pipe, 6-an adjusting device, 61-an adjusting screw rod, 611-a thread, 612-an adjusting nut, 62-a fixing lug, 63-a fixing nut, 7-a sling, 8-a screw hole connecting plate, 9-a hanging lug, 10-a support, 11-a spherical hinge and 12-a corrugated hose.

Detailed Description

The utility model is further illustrated by the following figures and examples.

The structure of an MBR membrane module with balanced aeration is shown in figures 1-3, and comprises a membrane frame 1, a membrane 2, a water collecting pipe 3, an air inlet pipe 4, an aeration pipe 5, an adjusting device 6 and a sling 7. The membrane frame is the rectangular frame structure that shaped steel was makeed into in this embodiment, and the bottom of membrane frame is provided with four landing legs for falling to the ground and installing the MBR membrane module, the top of membrane frame is provided with screw connecting plate 8, is connected with hangers 9 on the screw connecting plate, is used for the installation that hangs of MBR membrane module, and specifically, the hangers is "7" style of calligraphy structure, installs the hangers and hangs on the four corners of membrane frame. The diaphragm is a plate type or sheet type structure and is arranged in the diaphragm frame, a certain number of diaphragms are arranged according to the design requirement and the specified interval, and the upper water outlet end and the lower water outlet end of the diaphragm are both connected with the water collecting pipe. The water collecting pipe is made of UPVC material and is arranged in the middle of the top of the membrane frame or at one end of the membrane frame. The slings are connected with four corners of the top of the membrane frame and used for hoisting and transporting the MBR membrane component.

The adjusting device in the embodiment comprises an adjusting screw 61 vertically arranged, a fixing lug 62 fixed on the membrane frame and a fixing nut 63 fixed on the fixing lug, wherein the fixing lug is provided with a mounting hole, the adjusting screw is provided with a thread 611 matched with the fixing nut, the adjusting screw passes through the mounting hole and the fixing nut and is connected to the fixing nut through the thread, so that the adjusting screw is fixed on the membrane frame, and the height of the adjusting screw relative to the membrane frame can be adjusted by screwing the adjusting screw. In this embodiment, four adjusting devices are arranged and symmetrically distributed on the film frame. In this embodiment, the fixing lugs are fixed on the upper and lower beams of the membrane frame, so as to ensure that the adjusting screw rod is always arranged along the vertical direction, and reduce the bottom end deviation caused by the action of aeration and water flow. Adjusting nut 612 is fixedly connected to the top end of the adjusting screw, and tools such as a wrench can be used for screwing and adjusting the adjusting screw, so that time and labor are saved. In the embodiment, the fixing lug, the fixing nut and the adjusting nut are fixed by welding, and the connection is reliable and stable.

Aeration pipe level sets up in the bottom of diaphragm in this embodiment to aerate the diaphragm, be connected with support 10 on the aeration pipe, guarantee that the aeration pipe rigidity is indeformable when adjusting, adjusting screw's bottom all through ball-type hinge 11 and leg joint, make the aeration pipe suspend in midair under adjusting screw, can rotate for the support when guaranteeing adjusting screw and leg joint. The air inlet pipe is vertically installed and fixed on the membrane frame and is connected with the aeration pipe through the corrugated hose 12, the adjusting screw is screwed, the adjusting screw drives the support and the aeration pipe to adjust the height up and down, the aeration balance of the aeration pipe is ensured, meanwhile, the relative movement between the air inlet pipe and the aeration pipe is ensured through the arrangement of the corrugated pipe, and the aeration stability is ensured, as shown in fig. 4. The length of the thread on the adjusting screw is matched with the adjusting height of the support in the embodiment, so that the height adjustment of the support between the membrane frame and the bottom of the membrane is ensured.

The MBR membrane module for aeration balance provided by the utility model can be suitable for aeration balance adjustment in floor mounting or suspension mounting, and specifically comprises the following components: the MBR membrane module is grounded or hung, an external pipeline is connected, and the height of the adjusting screw rod at the corresponding position is adjusted according to the aeration uniformity after the aeration of the tank body is completed, so that the height of the aeration pipe at the corresponding position is adjusted, and the aeration balance is finally ensured.

Claims

1. The utility model provides a balanced MBR membrane module of aeration, includes membrane frame, diaphragm, collector pipe, intake pipe, aeration pipe and adjusting device, wherein in diaphragm, collector pipe and intake pipe installation were fixed in the membrane frame, the upper and lower water outlet end of diaphragm all was connected with the collector pipe, and the aeration pipe is located membrane frame, its characterized in that: the adjusting device comprises an adjusting screw rod, a fixing lug and a fixing nut, wherein the adjusting screw rod is vertically arranged, the fixing lug is fixed on the membrane frame, the fixing nut is fixed on the fixing lug, a mounting hole is formed in the fixing lug, threads matched with the fixing nut are arranged on the adjusting screw rod, the adjusting screw rod penetrates through the mounting hole and the fixing nut and is connected onto the fixing nut through threads, the adjusting device is more than four and is symmetrically distributed on the membrane frame, the aeration pipe is horizontally arranged at the bottom of the membrane, a support is connected onto the aeration pipe, the bottom end of the adjusting screw rod is connected with the support through a spherical hinge, the aeration pipe is suspended below the adjusting screw rod, the aeration pipe and the air inlet pipe are connected through corrugated hoses, and the adjusting screw rod is screwed to adjust aeration balance of the aeration pipe.

2. An aeration balanced MBR membrane module according to claim 1, wherein: the fixing lugs are fixed on the upper and lower beams of the membrane frame.

3. An aeration balanced MBR membrane module according to claim 1, wherein: the length of the thread is matched with the adjusting height of the support.

4. An aeration balanced MBR membrane module according to claim 1, wherein: and the top end of the adjusting screw rod is fixedly connected with an adjusting nut.

5. An aeration balanced MBR membrane module according to claim 1, wherein: the membrane frame is rectangular frame structure, and the bottom of membrane frame is provided with four landing legs, and the top of membrane frame is provided with the screw connecting plate, is connected with the hangers that are used for suspension installation on the screw connecting plate.

6. An aeration balanced MBR membrane module according to claim 1, wherein: the diaphragm is of a plate type or sheet type structure.

7. An aeration balanced MBR membrane module according to claim 1, wherein: and slings for hoisting and transporting are connected and arranged at four corners of the top of the film frame.