CN222593597U

CN222593597U - MBR curtain type membrane water treatment system

Info

Publication number: CN222593597U
Application number: CN202420705822.9U
Authority: CN
Inventors: 宋利民; 赵兴勃; 陈小永; 李玲
Original assignee: Tianjin Huaxia Yitai Environmental Engineering Co ltd
Current assignee: Tianjin Huaxia Yitai Environmental Engineering Co ltd
Priority date: 2024-04-08
Filing date: 2024-04-08
Publication date: 2025-03-11
Anticipated expiration: 2034-04-08

Abstract

The utility model discloses an MBR curtain type membrane water treatment system which comprises a membrane frame box and a dosing mechanism, wherein the membrane frame box comprises a box body, a membrane wire assembly frame, an aeration pipe and a dosing mechanism, the box body is connected with a water inlet pipe, an exhaust pipe and a mud discharge pipe, the membrane wire assembly frame is fixedly arranged in the box body, the aeration pipe is fixedly arranged in the box body and is positioned below the membrane wire assembly frame, and the dosing mechanism comprises a drug storage box, the drug storage box is connected to the exhaust pipe through the dosing pipe, and a diaphragm pump is arranged on the dosing pipe. According to the water treatment system, when the MBR membrane wires are cleaned by offline dosing, the whole membrane wire assembly frame is not required to be lifted out, and the recovery chemical cleaning is directly carried out in the box body, so that the manpower and material resources are saved.

Description

MBR curtain type membrane water treatment system

Technical Field

The utility model relates to the technical field of water treatment, in particular to an MBR curtain type membrane water treatment system.

Background

With the continuous improvement of membrane separation technology, MBR curtain type membranes are increasingly widely applied, and the sewage treatment capability is also continuously increased. In most of the current sewage treatment projects, an immersed scheme is adopted for MBR curtain type membranes, namely a group of complete MBR membrane frames are completely placed in sewage, sludge is intercepted outside membrane wires by negative pressure generated by a suction pump, filtered clean water is pumped into a clean water tank through a hollow pipeline inside the membrane wires, after the operation is carried out for a period of time, clean water is pumped into the membrane wires by a backwash pump, so that various sludge particles clamped on membrane holes of the membrane wires are cleaned, and the membrane wire frame is always in an aeration state in the operation process.

In actual operation, after the membrane module is used for a long time, a firm irreversible pollution layer can be generated, obvious effects can not be achieved through water backwashing and online maintenance cleaning, membrane silk is seriously blocked, membrane silk flux is rapidly reduced, offline dosing soaking cleaning is needed to be carried out on MBR membrane silk at the moment to recover the flux of the MBR membrane silk, the MBR membrane frame soaked in a water tank is required to be completely lifted out, the MBR membrane frame soaked in the water tank filled with a medicament is required to be cleaned, and the process is very time-consuming and labor-consuming, so that a water treatment system is designed, equipment installation is convenient and rapid, the whole MBR membrane frame is not required to be lifted out when the MBR membrane silk is cleaned through offline dosing cleaning, and restorative chemical cleaning is directly carried out in an MBR membrane frame box, so that manpower and material resources are saved.

Disclosure of utility model

In view of the above-mentioned drawbacks or shortcomings in the prior art, it is desirable to provide an MBR curtain type membrane water treatment system, which does not need to hang out the whole membrane wire assembly frame when offline dosing and cleaning the MBR membrane wires, and directly performs restorative chemical cleaning in a box body, thereby saving manpower and material resources.

The utility model provides an MBR curtain type membrane water treatment system, which comprises a membrane frame box and a dosing mechanism;

the membrane frame case comprises:

The device comprises a box body, a water inlet valve, an exhaust valve, a mud valve, a water inlet valve, a water outlet valve and a mud valve, wherein one side of the box body is connected with the water inlet pipe, the top of the box body is connected with the exhaust pipe, and the bottom of the box body is connected with the mud pipe;

A membrane wire group frame fixedly arranged in the box body, one side of the membrane wire group frame is connected with a water outlet pipe extending out of the box body, a water outlet valve is arranged on the water outlet pipe, and

The aeration pipe is fixedly arranged in the box body and positioned below the membrane wire assembly frame, one end of the aeration pipe extends out of the box body and is connected to an aeration source, and an aeration valve is arranged at the input end of the aeration pipe;

the dosing mechanism comprises:

a medicine storage box connected to an exhaust pipe between the box body and the exhaust valve through a medicine adding pipe, wherein the medicine adding pipe is provided with a medicine adding valve, and

The diaphragm pump is arranged on the dosing pipe and is positioned between the medicine storage box and the dosing valve.

Further, the membrane frame box is provided with two groups.

Further, the dosing mechanism further comprises a circulating pump, the input end of the circulating pump is connected to a mud discharging pipe between the box body and the mud discharging valve through a circulating pipe, the circulating pipe is provided with a circulating valve, and the output end of the circulating pump is connected to a dosing pipe between the diaphragm pump and the dosing valve.

Further, one end of the water inlet pipe, which is far away from the box body, is connected to the regulating tank through a water inlet pump.

Further, one end of the exhaust pipe, which is far away from the box body, extends to the upper part of the regulating tank.

Further, one end of the water outlet pipe, which is far away from the membrane wire assembly frame, is respectively connected to a clean water tank and a backwashing water tank, a clean water tank valve is arranged at one end of the water outlet pipe, which is close to the clean water tank, and a backwashing water tank valve is arranged at one end of the water outlet pipe, which is close to the backwashing water tank.

Further, the backwash water tank is connected with a backwash pipe, a backwash valve is arranged on the backwash pipe, one end of the backwash pipe away from the backwash water tank is connected to the water outlet pipe between the membrane wire assembly frame and the water outlet valve, and a backwash pump is arranged on the backwash pipe.

Further, one end of the sludge discharge pipe, which is far away from the box body, is connected to the sludge storage tank.

Compared with the prior art, the utility model has the beneficial effects that:

The water treatment system of the utility model encapsulates the membrane wire assembly frame into the box body, and is connected into the system through the pipeline, sewage treatment is carried out in the box body, the box body can be directly fixed on the cement floor, the equipment is convenient and quick to install, when chemical cleaning is carried out, the box body is cut off from the sewage treatment flow and is connected into the chemical cleaning flow through switching of the valve, the forward chemical adding and the reverse cleaning are utilized, the membrane wire flux is continuously improved along with the gradual progress of the chemical cleaning, the cleaning effect can be enhanced, the cleaning time is shortened, the cleaning flow can be controlled by adopting an automatic program, and an operation and maintenance personnel can adjust the opening of the valve on time. According to the water treatment system, when the MBR membrane wires are cleaned by offline dosing, the whole membrane wire assembly frame is not required to be lifted out, and the recovery chemical cleaning is directly carried out in the box body, so that the manpower and material resources are saved.

It should be understood that the description in this summary is not intended to limit the critical or essential features of the embodiments of the utility model, nor is it intended to limit the scope of the utility model. Other features of the present utility model will become apparent from the description that follows.

Drawings

Other features, objects and advantages of the present utility model will become more apparent upon reading of the detailed description of non-limiting embodiments, made with reference to the accompanying drawings in which:

FIG. 1 is a schematic diagram of an MBR curtain-type membrane water treatment system;

fig. 2 is a schematic structural view of the film frame case.

In the figure, the reference numerals are 1, a membrane frame box, 2, a dosing mechanism, 3, an adjusting tank, 4, a clean water tank, 5, a backwash water tank, 6, and a mud storage tank;

101. The device comprises a box body, a membrane wire assembly frame, 103, an aeration pipe, 104, a water inlet pipe, 105, an exhaust pipe, 106, a mud discharge pipe, 107, a water inlet valve, 108, an exhaust valve, 109, a mud discharge valve, 110, a water outlet pipe, 111, a water outlet valve, 112, an aeration source, 113 and an aeration valve;

201. The medicine storage box, 202, a diaphragm pump, 203, a medicine adding pipe, 204, a medicine adding valve, 205, a circulating pump, 206, a circulating pipe, 207 and a circulating valve;

301. A water inlet pump;

401. A clean water tank valve;

501. A backwash water tank valve 502, backwash pipes 503, backwash valves 504 and backwash pumps.

Detailed Description

The utility model is described in further detail below with reference to the drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the utility model and are not limiting of the utility model. It should be noted that, for convenience of description, only the portions related to the utility model are shown in the drawings.

It should be noted that, without conflict, the embodiments of the present utility model and features of the embodiments may be combined with each other. The utility model will be described in detail below with reference to the drawings in connection with embodiments.

Referring to fig. 1 to 2, an embodiment of the present utility model provides an MBR curtain type membrane water treatment system, which includes a membrane frame box 1 and a dosing mechanism 2;

The film frame case 1 includes:

The device comprises a box body 101, a water inlet pipe 104, an exhaust pipe 105, a mud discharge pipe 106, a water inlet valve 107, an exhaust valve 108, a mud discharge valve 109, a water outlet valve 108 and a mud discharge valve 109, wherein one side of the box body is connected with the water inlet pipe 104;

A film wire group frame 102 fixedly arranged in the box body 101, one side of which is connected with a water outlet pipe 110 extending out of the box body 101, a water outlet valve 111 is arranged on the water outlet pipe 110, and

The aeration pipe 103 is fixedly arranged in the box body 101 and positioned below the membrane wire assembly frame 102, one end of the aeration pipe extends out of the box body 101 and is connected to the aeration source 112, and an aeration valve 113 is arranged at the input end of the aeration pipe 103;

the dosing mechanism 2 includes:

A medicine storage tank 201 connected to the exhaust pipe 105 between the tank body 101 and the exhaust valve 108 through a medicine feeding pipe 203, a medicine feeding valve 204 provided on the medicine feeding pipe 203, and

A diaphragm pump 202 is provided on the dosing tube 203 between the medicine storage tank 201 and the dosing valve 204.

In this embodiment, when the water treatment system is operated, raw water enters the tank 101 through the water inlet pipe 104, and aeration is injected into the tank 101 through the air compressor. Raw water is filtered by MBR membrane wires on the membrane wire assembly frame 102 and then discharged from the water outlet pipe 110.

In general, the MBR membrane wire is cleaned by conventional back cleaning, and when the conventional back cleaning cannot meet the requirements, the water inlet valve 107, the air outlet valve 108, the mud valve 109, the water outlet valve 111 and the aeration valve 113 are closed to cut off the tank 101 from the sewage treatment process, the chemical adding valve 204 and the diaphragm pump 202 are opened to connect the tank 101 to the chemical cleaning process, and the chemical agent in the chemical storage tank 201 is injected into the tank 101 through the chemical adding pipe 203 and the air outlet pipe 105 to perform chemical cleaning. Along with the gradual progress of chemical cleaning, the flux of membrane wires is continuously improved, the cleaning effect can be enhanced, the cleaning time is shortened, the cleaning process can be controlled by adopting an automatic program, and an operation and maintenance person can adjust the opening of a valve on time. The chemical cleaning is directly carried out in the box body 101, the whole membrane wire assembly frame 102 does not need to be lifted out, and manpower and material resources are saved.

In a preferred embodiment, as shown in fig. 1, the film frame cases 1 are provided with two sets.

In the embodiment, two groups of membrane frame boxes 1 are arranged in each water treatment system, one group of membrane frame boxes 1 is used for water treatment, the other group of membrane frame boxes 1 is used for conventional back washing, and the two groups of membrane frame boxes 1 are replaced and operated at intervals for a period of time, so that the continuity of water treatment is ensured.

In a preferred embodiment, as shown in fig. 1, the dosing mechanism 2 further comprises a circulation pump 205, wherein the input end of the circulation pump 205 is connected to the sludge discharge pipe 106 between the tank 101 and the sludge discharge valve 109 through a circulation pipe 206, the circulation pipe 206 is provided with a circulation valve 207, and the output end of the circulation pump 205 is connected to the dosing pipe 203 between the diaphragm pump 202 and the dosing valve 204.

In this embodiment, after the chemical agent is injected into the tank 101, the circulation valve 207 and the circulation pump 205 are opened, the water and the chemical agent in the tank 101 are output through the mud pipe 106 and the circulation pipe 206, and then are injected into the tank 101 through the chemical adding pipe 203 and the exhaust pipe 105, so as to form circulation cleaning, and the cleaning effect of the chemical cleaning is greatly improved.

In a preferred embodiment, as shown in fig. 1, the end of the water inlet pipe 104 remote from the tank 101 is connected to the regulating reservoir 3 by a water inlet pump 301. Raw water is injected into the regulating tank 3 for storage and then is injected into the tank body 101 for filtering treatment through the water inlet pump 301.

In a preferred embodiment, as shown in fig. 1, the end of the exhaust pipe 105 remote from the casing 101 extends above the regulating reservoir 3. The aeration carrying water is discharged together through the exhaust pipe 105, and the water in the aeration carrying water enters the regulating tank 3 to be collected and waiting for filtering treatment.

In a preferred embodiment, as shown in fig. 1, one end of the water outlet pipe 110, which is far away from the membrane wire assembly frame 102, is respectively connected to the clean water tank 4 and the backwash water tank 5, one end of the water outlet pipe 110, which is close to the clean water tank 4, is provided with a clean water tank valve 401, and one end of the water outlet pipe 110, which is close to the backwash water tank 5, is provided with a backwash water tank valve 501.

In this embodiment, raw water is filtered by the membrane wire assembly frame 102 and then output by the water outlet pipe 110, wherein most of the raw water enters the clean water tank 4 for storage, and the other part enters the backwash water tank 5 for backwashing of the membrane wire assembly frame 102.

In a preferred embodiment, as shown in fig. 1, the backwash water tank 5 is connected with a backwash pipe 502, a backwash valve 503 is provided on the backwash pipe 502, one end of the backwash pipe 502 away from the backwash water tank 5 is connected to the water outlet pipe 110 between the membrane wire assembly frame 102 and the water outlet valve 111, and a backwash pump 504 is provided on the backwash pipe 502.

In this embodiment, when the back washing is performed, the water inlet valve 107 and the water outlet valve 111 are closed, the backwash valve 503, the backwash pump 504 and the mud valve 109 are opened, water in the backwash water tank 5 enters the membrane wire assembly frame 102 through the backwash pipe 502 and the water outlet pipe 110, the dirt accumulated on the outer surface of the membrane wires is back washed, and the back-washed sewage is discharged through the mud pipe 106.

In a preferred embodiment, as shown in fig. 1, the end of the sludge discharge pipe 106 remote from the tank 101 is connected to the sludge reservoir 6. The back-cleaned sewage and the chemical cleaned sewage are all discharged into the mud storage tank 6 through the mud discharge pipe 106 for collection.

In the description of the present specification, the terms "connected," "mounted," "fixed," and the like are to be construed broadly, and "connected" may be, for example, a fixed connection, a detachable connection, or an integral connection, and may be directly connected or indirectly connected through an intermediary. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art according to the specific circumstances.

In the description of the present specification, the terms "one embodiment," "some embodiments," and the like, mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present application. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The above is only a preferred embodiment of the present application, and is not intended to limit the present application, but various modifications and variations can be made to the present application by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application should be included in the protection scope of the present application.

Claims

1. An MBR curtain type membrane water treatment system is characterized by comprising a membrane frame box (1) and a dosing mechanism (2);

The film frame box (1) comprises:

The device comprises a box body (101), wherein one side of the box body is connected with a water inlet pipe (104), the top of the box body is connected with an exhaust pipe (105), and the bottom of the box body is connected with a mud discharge pipe (106), a water inlet valve (107) is arranged on the water inlet pipe (104), an exhaust valve (108) is arranged on the exhaust pipe (105), and a mud discharge valve (109) is arranged on the mud discharge pipe (106);

A membrane wire group frame (102) fixedly arranged in the box body (101), one side of the membrane wire group frame is connected with a water outlet pipe (110) extending out of the box body (101), the water outlet pipe (110) is provided with a water outlet valve (111), and

The aeration pipe (103) is fixedly arranged in the box body (101) and positioned below the membrane wire assembly frame (102), one end of the aeration pipe extends out of the box body (101) and is connected to the aeration source (112), and an aeration valve (113) is arranged at the input end of the aeration pipe (103);

The dosing mechanism (2) comprises:

A medicine storage box (201) connected to an exhaust pipe (105) between the box body (101) and the exhaust valve (108) through a medicine adding pipe (203), wherein a medicine adding valve (204) is arranged on the medicine adding pipe (203), and

And the diaphragm pump (202) is arranged on the dosing tube (203) and is positioned between the medicine storage box (201) and the dosing valve (204).

2. The MBR curtain membrane water treatment system according to claim 1, wherein the membrane rack boxes (1) are provided with two groups.

3. The MBR curtain membrane water treatment system according to any one of claims 1 or 2, wherein the dosing mechanism (2) further comprises a circulation pump (205), an input end of the circulation pump (205) is connected to a sludge discharge pipe (106) between the tank (101) and the sludge discharge valve (109) through a circulation pipe (206), a circulation valve (207) is provided on the circulation pipe (206), and an output end of the circulation pump (205) is connected to a dosing pipe (203) between the diaphragm pump (202) and the dosing valve (204).

4. The MBR curtain membrane water treatment system according to any one of claims 1 or 2, wherein an end of the water inlet pipe (104) remote from the tank (101) is connected to the regulating tank (3) by a water inlet pump (301).

5. The MBR curtain membrane water treatment system according to claim 4, wherein an end of the exhaust pipe (105) remote from the tank (101) extends above the regulating tank (3).

6. The MBR curtain type membrane water treatment system according to any one of claims 1 or 2, wherein one end of the water outlet pipe (110) far away from the membrane wire assembly frame (102) is respectively connected to a clean water tank (4) and a backwash water tank (5), one end of the water outlet pipe (110) close to the clean water tank (4) is provided with a clean water tank valve (401), and one end of the water outlet pipe (110) close to the backwash water tank (5) is provided with a backwash water tank valve (501).

7. The MBR curtain membrane water treatment system according to claim 6, wherein the backwash water tank (5) is connected with a backwash pipe (502), a backwash valve (503) is provided on the backwash pipe (502), one end of the backwash pipe (502) away from the backwash water tank (5) is connected to the water outlet pipe (110) between the membrane wire assembly frame (102) and the water outlet valve (111), and a backwash pump (504) is provided on the backwash pipe (502).

8. The MBR curtain membrane water treatment system according to any one of claims 1 or 2, wherein an end of the sludge discharge pipe (106) remote from the tank (101) is connected to a sludge storage tank (6).