CN211051261U

CN211051261U - MBR membrane cleaning system

Info

Publication number: CN211051261U
Application number: CN201921127128.9U
Authority: CN
Inventors: 张�杰; 蒋胜利
Original assignee: Huanghua Zhongli Environmental Protection Technology Co ltd
Current assignee: Huanghua Zhongli Environmental Protection Technology Co ltd
Priority date: 2019-07-18
Filing date: 2019-07-18
Publication date: 2020-07-21
Anticipated expiration: 2029-07-18

Abstract

The utility model discloses an MBR membrane cleaning system, which comprises a treatment water tank, a membrane separation tank, a membrane component arranged in the membrane separation tank and a blowing device; the membrane assembly is communicated with a treatment water tank through a first pipeline, and a filter pump, a check valve III, a valve IV and an automatic valve are arranged on the first pipeline; the membrane component is communicated with the automatic valve through a second pipeline and the liquid medicine tank, and a stirrer, the liquid medicine pump, an electric valve II and a valve I are arranged on the second pipeline; the valve I is communicated with the stirrer through a third pipeline, and the third pipeline is provided with an electric valve I, a check valve I and a dilution water pump; the blowing device is connected with an air blower through a fourth pipeline, and a second check valve, a second valve and a first air filtering device are installed on the fourth pipeline. The utility model discloses a MBR membrane cleaning system structure is ingenious, and the function is various, and convenient operation can effectively improve the cleaning efficiency and the quality of MBR membrane, and is convenient for observe and overhaul, has great development prospect in sewage treatment technical field.

Description

MBR membrane cleaning system

Technical Field

The utility model relates to a sewage treatment technical field especially relates to a MBR membrane cleaning system.

Background

The large and medium-sized sewage treatment plants have large investment and large occupied area, so a matched and huge sewage collecting pipe network is needed, the application of integrated sewage treatment equipment is needed, and MBR membrane cleaning is the most important in the current integrated sewage treatment equipment.

In the MBR membrane cleaning process in the existing integrated sewage treatment, equipment such as an external liquid medicine tank, a dilution water tank, a liquid medicine pump, a dilution water pump, a static mixer and a back flushing pump are needed, the corresponding volume of the integrated equipment is large, the integrated equipment is placed in a reaction tank, the occupied area is large, the cleaning efficiency and the quantity are limited, and most importantly, once the corresponding integrated equipment in a high-salinity sewage area is corroded, the integrated equipment cannot be found immediately, and the maintenance process is complicated. Based on this, the utility model provides a MBR membrane cleaning system who sets up on integration sewage treatment device outlet pipeline.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a MBR membrane cleaning system solves the problem of MBR membrane cleaning in-process inefficiency, maintenance difficulty and difficult observation.

In order to solve the technical problem, the utility model adopts the following technical scheme:

the utility model relates to an MBR membrane cleaning system, which comprises a treatment water tank, a membrane separation tank, a membrane component arranged in the membrane separation tank and a blowing device;

the membrane assembly is communicated with the treatment water tank through a first pipeline, a filter pump is arranged on the first pipeline, and a check valve III and a valve IV are sequentially arranged between the filter pump and the treatment water tank; an automatic valve is arranged between the filter pump and the membrane component;

a first pipeline between the membrane assembly and the automatic valve is communicated with a liquid medicine tank through a second pipeline, a stirrer and a liquid medicine pump are sequentially installed on the second pipeline, the liquid medicine pump is close to one side of the liquid medicine tank, an electric valve II is installed on the second pipeline, communicated with the first pipeline, of the stirrer, and a valve I is installed between the stirrer and the liquid medicine pump;

the second pipeline between the first valve and the stirrer is communicated with a dilution water tank through a third pipeline, the third pipeline is sequentially provided with a first electric valve, a first check valve and a dilution water pump, and the dilution water pump is close to one side of the dilution water tank;

the blowing device is connected with a blower through a fourth pipeline, a second check valve and a second valve are sequentially installed on the fourth pipeline, and the second check valve is close to one side of the blower; and the air inlet side of the air blower is connected with a first air filtering device.

Furthermore, a water pressure gauge is connected to the first pipeline between the automatic valve and the membrane component through a valve III.

Furthermore, an air pressure meter is connected to the fourth pipeline between the second valve and the blowing device through a third electric valve.

Furthermore, liquid level sensors are arranged in the membrane separation tank, the treatment water tank, the liquid medicine tank and the dilution water tank.

Furthermore, flow displays are arranged between the valve IV and the treatment water tank, between the valve I and the liquid medicine pump, between the stirrer and the electric valve I, and between the blowing device and the valve II.

Furthermore, the bottom of the membrane separation tank is connected with a sludge discharge pump through a pipeline.

Furthermore, a second air filtering device is arranged between the second valve and the second check valve.

Compared with the prior art, the utility model discloses a beneficial technological effect:

the utility model discloses a MBR membrane cleaning system places the membrane module in the membrane separation tank at the in-process of actual work to place a blast apparatus in its lower part, its upper end has abluent liquid through the tube coupling. The cleaning liquid is mainly prepared by stirring water in a dilution water tank and liquid medicine in a liquid medicine tank in a stirrer according to a certain proportion after passing through a corresponding water pump and a valve, then entering the membrane module through the valve, and performing the cleaning process of the membrane module with the aid of a blowing device. In addition, the air of the blowing device enters the blower after passing through the first air filtering device, and then enters the blowing device from the blower for air supply. Meanwhile, a pipeline on the blowing device is connected with a wind pressure meter for detecting wind pressure at any time; the pipeline is connected with a water pressure gauge on the membrane component and used for detecting the water pressure condition in the membrane separation tank, once the water pressure exceeds the standard, the water in the membrane separation tank is proved to be required to be cleaned, an electric valve connected with a stirrer is closed under the condition, an automatic valve of another pipeline is manually reached, a filter pump is started, the sewage in the membrane separation tank is pumped out and enters a treatment water tank after being filtered, and meanwhile, the residual sludge in the membrane separation tank is discharged out of the tank through a sludge discharge pump.

According to the content, the utility model relates to a MBR membrane cleaning system can wash the membrane module at any time, and can carry out a lot of washing of liquid medicine, save and wash the liquid medicine, whole system installs outside the retort of integration sewage treatment simultaneously, the abluent quantity of membrane module and efficiency have been increased, even in high salt sewage district, also can observe whole system's operational aspect at any time, the condition that equipment is corroded by high salt sewage and is not known by oneself can not appear, and can overhaul at any time, in addition this system can handle the washing sewage in the membrane separation pond automatically, and wash sewage and discharge after handling, and each jar body or the interior liquid position of box just can learn through level sensor, the automation work efficiency has been improved greatly. In a word, this utility model an MBR membrane cleaning system structure is ingenious, and the function is various, and convenient operation can effectively improve the cleaning efficiency and the quality of MBR membrane, and is convenient for observe and overhaul, has great development prospect in sewage treatment technical field.

Drawings

The present invention will be further explained with reference to the following description of the drawings.

FIG. 1 is a schematic structural view of the MBR membrane cleaning system of the present invention;

description of reference numerals: 1. a dilution water tank; 2. a dilution water pump; 3. a first check valve; 4. a first electric valve; 5. a blender; 6. a second electric valve; 7. a membrane module; 8. a liquid medicine tank; 9. a liquid medicine pump; 10. a first valve; 11. a first air filtration device; 12. a blower; 13. a second check valve; 14. a second air filtration device; 15. a second valve; 16. electrically operated valve III; 17. a blowing device; 18. a sludge discharge pump; 19. a third valve; 20. a water pressure gauge; 21. an automatic valve; 22. a filter pump; 23. a third check valve; 24. a fourth valve; 25. treating the water pool; 26. a liquid level sensor; 27. a flow display; 28. a membrane separation tank; 29. a wind pressure meter; 30. a first pipeline; 31. a second pipeline; 32. a third pipeline; 33. a fourth pipeline.

Detailed Description

As shown in fig. 1, an MBR membrane cleaning system includes a treatment water tank 25, a membrane separation tank 28, a membrane module 7 installed in the membrane separation tank 28, and a blowing device 17, wherein the membrane module 7 is placed in the membrane separation tank 28 for cleaning, and the blowing device 17 is a device for assisting cleaning. The bottom of the membrane separation tank 28 is connected with a sludge discharge pump 18 through a pipeline, and the sludge discharge pump is used for cleaning the membrane separation tank 28.

The membrane module 7 is communicated with the processing water tank 25 through a first pipeline 30, and a filter pump 22 is installed on the first pipeline 30 and is used for pumping the liquid in the membrane separation tank 28 into the processing water tank 25 and discharging the liquid after being processed in the processing water tank 25. A third check valve 23 and a fourth check valve 24 are sequentially arranged between the filter pump 22 and the treatment water tank 25, an automatic valve 21 is arranged between the filter pump 22 and the membrane module 7, and the automatic valve 21 is manually operated to be switched on and off. In addition, a water pressure gauge 20 is connected to the first pipeline 30 between the automatic valve 21 and the membrane module 7 through a valve III 19 and is used for detecting the water pressure condition in the pipeline, once the water pressure is too high, the situation that the liquid in the pipeline contains more impurities and needs to be cleaned is indicated, and at this time, the water pressure gauge 20 gives an alarm to remind related personnel.

The membrane module 7 is communicated with the liquid medicine tank 8 through a second pipeline 31 on a first pipeline 30 between the automatic valves 21, the stirrer 5 and the liquid medicine pump 9 are sequentially installed on the second pipeline 31, the liquid medicine pump 9 is close to one side of the liquid medicine tank 8, and liquid medicine flows into the stirrer 5 from the liquid medicine tank 8 through the liquid medicine pump 9 to be stirred. An electric valve II 6 is arranged on the second pipeline 31 which is communicated with the first pipeline 30 of the stirrer 5, and a valve I10 is arranged between the stirrer 5 and the liquid medicine pump 9.

The second pipeline 31 between the first valve 10 and the stirrer 5 is communicated with the dilution water tank 1 through a third pipeline 32, the third pipeline 32 is sequentially provided with a first electric valve 4, a first check valve 3 and a dilution water pump 2, the dilution water pump 2 is close to one side of the dilution water tank 1, liquid in the dilution water tank 1 enters the stirrer 5 through the dilution water pump 2 and is mixed and stirred with liquid medicine, so that liquid capable of cleaning the membrane module 7 is prepared, then enters the interior of the membrane module 7 through the second pipeline 31 and the first pipeline 30 and is cleaned under the assistance of a blowing device 17, and the cleaned liquid enters the membrane separation tank 28.

The blowing device 17 is connected with the blower 12 through a fourth pipeline 33, a second check valve 13 and a second valve 15 are sequentially installed on the fourth pipeline 33, the second check valve 13 is connected with a first air filtering device 11 on one side, close to the blower 12, of the second check valve, the air inlet side of the blower 12 is connected with the first air filtering device 11, the blower 12 compresses air in the nature through the first air filtering device 11, the air enters the fourth pipeline 33, and finally the air is blown out of the blowing device 17. In addition, the second valve 15 and between the blowing devices 17, the fourth pipeline 33 is connected with an air pressure meter 29 through a third electric valve 16, and the air pressure meter is used for detecting air pressure in the pipeline, so that the wind speed can be conveniently checked by a worker. And a second air filtering device 14 is arranged between the second valve 15 and the second check valve 13 and is used for filtering the air blown by the blower 12 to prevent small particulate matters such as dust and the like from entering the blowing device 17, so that the device or the membrane component 7 is damaged.

In the above system, the membrane separation tank 28, the treatment water tank 25, the liquid medicine tank 8 and the dilution water tank 1 are all provided with liquid level sensors 26 for detecting the displacement of liquid in each tank and tank, thereby determining which device needs to add or discharge liquid.

Flow displays 27 are respectively arranged between the valve IV 24 and the treatment water tank 25, between the valve I10 and the liquid medicine pump 9, between the stirrer 5 and the electric valve I4, and between the blowing device 17 and the valve II 15, and are used for detecting the flow rate and the flow condition of liquid or gas in each pipeline.

All the valves are ordinary stop valves, the electric valves are all electrically connected with a control system, and the check valves are all used for preventing liquid in the pipelines from flowing back, which is the prior art and redundant description is not needed here.

The action process of the utility model is as follows:

firstly, the dilution water pump 2 and the liquid medicine pump 9 are started simultaneously, the electric valves I4 and I of the check valves 3 on the third pipeline and the second pipeline are opened, so that the liquid passes through the pipelines to reach the mixer 5, and the flow rates on the two pipelines are checked by the flow display 27. After the proportional mixing by the mixer 5, the motor-operated valve 6 is opened, and the mixed liquid is introduced into the membrane module 7 in the membrane separation tank 28 through the first pipe, so that the membrane module 7 is cleaned. Meanwhile, the blower 12 compresses and blows out the natural wind passing through the first air filter 11 to form wind with a certain wind pressure difference, and the wind passes through the second check valve 13, the second air filter 14 and the second valve 15 on the fourth pipeline 33 and then is blown out from the blowing device 17 to assist in the cleaning process of the membrane module 7. In the above process, the valve three 19 connected in parallel with the electric valve two 6 and the electric valve three 16 connected in parallel with the valve two 15 are both in an open state, and the liquid in the first pipeline 30 enters the water pressure gauge 20 from the valve three 19 and is used for detecting the pressure condition of the liquid; the air blown by the blower 12 and the electric valve III 16 enter the air pressure gauge 29 for detecting the air pressure condition. Finally, once the value in the water pressure gauge 20 exceeds the specified value, the relevant personnel replace the liquid generated by cleaning the membrane module 7 in the membrane separation tank 28, at this time, the electric valve two 6 is closed, the automatic valve 21 is opened, the liquid in the membrane separation tank 28 is pumped out along the first pipeline 30 by the filter pump 22, and enters the treatment water tank 25 after passing through the check valve three 23 and the valve four 24, and the waste liquid is discharged after treatment, and simultaneously the sludge in the membrane separation tank 28 is discharged out of the tank by the sludge discharge pump 18.

The above-mentioned embodiments are only intended to describe the preferred embodiments of the present invention, but not to limit the scope of the present invention, and those skilled in the art should also be able to make various modifications and improvements to the technical solution of the present invention without departing from the spirit of the present invention, and all such modifications and improvements are intended to fall within the scope of the present invention as defined in the appended claims.

Claims

1. An MBR membrane cleaning system, its characterized in that: comprises a treatment water tank (25), a membrane separation tank (28), a membrane module (7) arranged in the membrane separation tank (28) and a blowing device (17);

the membrane module (7) is communicated with the treatment water tank (25) through a first pipeline (30), a filter pump (22) is arranged on the first pipeline (30), and a check valve III (23) and a valve IV (24) are sequentially arranged between the filter pump (22) and the treatment water tank (25); an automatic valve (21) is arranged between the filter pump (22) and the membrane module (7);

a first pipeline (30) between the membrane assembly (7) and the automatic valve (21) is communicated with a liquid medicine tank (8) through a second pipeline (31), a stirrer (5) and a liquid medicine pump (9) are sequentially installed on the second pipeline (31), the liquid medicine pump (9) is close to one side of the liquid medicine tank (8), an electric valve II (6) is installed on the second pipeline (31) through which the stirrer (5) is communicated with the first pipeline (30), and a valve I (10) is installed between the stirrer (5) and the liquid medicine pump (9);

the second pipeline (31) between the first valve (10) and the stirrer (5) is communicated with the dilution water tank (1) through a third pipeline (32), an electric valve I (4), a check valve I (3) and a dilution water pump (2) are sequentially installed on the third pipeline (32), and the dilution water pump (2) is close to one side of the dilution water tank (1);

the blowing device (17) is connected with a blower (12) through a fourth pipeline (33), a second check valve (13) and a second valve (15) are sequentially installed on the fourth pipeline (33), and the second check valve (13) is close to one side of the blower (12); the air inlet side of the air blower (12) is connected with a first air filtering device (11);

a water pressure gauge (20) is connected to the first pipeline (30) between the automatic valve (21) and the membrane component (7) through a valve III (19);

and an air pressure gauge (29) is connected to the fourth pipeline (33) between the second valve (15) and the blowing device (17) through a third electric valve (16).

2. The MBR membrane cleaning system of claim 1, wherein: liquid level sensors (26) are arranged in the membrane separation tank (28), the treatment water tank (25), the liquid medicine tank (8) and the dilution water tank (1).

3. The MBR membrane cleaning system of claim 1, wherein: flow displays (27) are arranged between the valve IV (24) and the treatment water tank (25), between the valve I (10) and the liquid medicine pump (9), between the stirrer (5) and the electric valve I (4) and between the blowing device (17) and the valve II (15).

4. The MBR membrane cleaning system of claim 1, wherein: the bottom of the membrane separation tank (28) is connected with a sludge discharge pump (18) through a pipeline.

5. The MBR membrane cleaning system of claim 1, wherein: and a second air filtering device (14) is arranged between the second valve (15) and the second check valve (13).