CN215208691U

CN215208691U - Compatible submergence formula MBR pond aeration systems has

Info

Publication number: CN215208691U
Application number: CN202120904040.4U
Authority: CN
Inventors: 张宇; 鞠花; 吴亚南; 张超奇
Original assignee: Dayu Environmental Protection Tianjin Co ltd
Current assignee: Dayu Rural Environmental Infrastructure Operation Service Co ltd
Priority date: 2021-04-28
Filing date: 2021-04-28
Publication date: 2021-12-17
Anticipated expiration: 2031-04-28

Abstract

The utility model provides a compatible submergence formula MBR pond aeration systems has, the gas collecting tank communicates to the one end of connecting pipe, a plurality of first branch pipe one ends of connecting pipe other end intercommunication, every first branch pipe other end communicates to adding medicine mechanism, installs a third valve on every first branch pipe respectively, the gas collecting tank communicates to the aeration dish of a plurality of good oxygen pond bottoms through good oxygen aeration mechanism, the gas collecting tank still communicates to unloading aeration mechanism one end, the unloading aeration mechanism other end is located good oxygen pond liquid level below, the gas collecting tank still communicates a plurality of aeration main pipe mechanism one ends, a compatible submergence formula MBR pond aeration systems has, easy operation is nimble, and the investment is lower, and life is longer simultaneously and have stronger compatible characteristics, but wide application in the whole aeration systems of small-size integrated equipment.

Description

Compatible submergence formula MBR pond aeration systems has

Technical Field

The utility model belongs to the technical field of sewage treatment, especially, relate to an aeration system with compatible submergence formula MBR pond.

Background

The aeration mode used for sewage treatment equipment at present mainly includes two main types of blast aeration and mechanical aeration, the blast aeration is to utilize an air compressor to convey air to an air diffusion device arranged at the bottom of a tank by using a pipeline, so that the air is dispersed and overflowed as bubbles, oxygen is dissolved into water through a gas-liquid interface, the common air diffusion device is provided with four different types of a perforated pipe, a fixed spiral aerator, a water injector, a microporous diffusion plate and the like, the aeration method is mainly suitable for a regular rectangular tank body, the aeration mode has certain use limitation, the mechanical aeration needs to be additionally provided with a mechanical impeller device in the tank, and the aeration method is not suitable for small-sized sewage treatment equipment, namely, the aeration mode is not more than 400m³And the MBR tank aeration system has higher cost.

Aiming at the situations and combining the actual situation of unstable quality and quantity of rural sewage, the installation structure of the aeration system with the compatible immersed MBR tank is independently researched, developed and improved. The aeration system has the characteristics of simple and flexible operation, low investment, long service life and strong compatibility, and can be widely applied to the integral aeration system of small-sized integrated equipment

Disclosure of Invention

In view of this, the utility model aims at providing a have compatible submergence formula MBR pond aeration systems to solve prior art and uncomfortable be applied to and be not more than 400m³A problem in MBR tanks of/d.

In order to achieve the above purpose, the technical scheme of the utility model is realized like this:

an aeration system with a compatible immersed MBR tank comprises a gas collecting tank, a first air blowing mechanism, a second air blowing mechanism, a connecting mechanism, an aerobic aeration mechanism, an emptying aeration mechanism, an aeration main pipe mechanism and a dosing mechanism, wherein the first air blowing mechanism comprises a first gas distribution pipe, a first valve and a first air pump, the gas collecting tank is communicated to the gas outlet end of the first air pump through the first gas distribution pipe, the first valve is installed on the first gas distribution pipe, the second air blowing mechanism comprises a second gas distribution pipe, a second valve and a second air pump, the gas collecting tank is of a box body structure, the gas collecting tank is communicated to the gas outlet end of the second air pump through the second gas distribution pipe, the second valve is installed on the second gas distribution pipe, the connecting mechanism comprises a connecting pipe, a first branch pipe, a third valve and a tenth valve, the gas collecting tank is communicated to one end of the connecting pipe, the other end of the connecting pipe is communicated with one end of a plurality of first branch pipes, the other end of each first branch pipe is communicated to the dosing mechanism, and each first branch pipe is provided with a third valve respectively, the connecting pipe is provided with a tenth valve, the gas collecting tank is communicated to aeration discs at the bottoms of the aerobic tanks through the aerobic aeration mechanism, the gas collecting tank is also communicated to one end of the emptying aeration mechanism, the other end of the emptying aeration mechanism is positioned below the liquid level of the aerobic tanks, the gas collecting tank is also communicated with one ends of the aeration main pipe mechanisms, the other end of each aeration main pipe mechanism is communicated to the pipe orifice of an MBR (membrane bioreactor) membrane component in the aerobic tanks respectively, and the first air pump and the second air pump are respectively connected to the controller through signals.

Further, the aerobic aeration mechanism comprises a third valve, a first gas flowmeter, a fourth valve, a fifth valve, a first vent pipe, a first aerobic aeration pipe, a second branch pipe and a second aerobic aeration pipe, wherein one end of the first vent pipe is communicated to the gas collecting tank, the other end of the first vent pipe is communicated to the first aerobic aeration pipe, the other end of the first aerobic aeration pipe is communicated to aeration discs at the bottoms of the aerobic tanks respectively, the third valve, the first gas flowmeter, the fourth valve and the second branch pipe are sequentially arranged from one end close to the water collecting tank to one end close to the first aerobic aeration pipe, the other end of the second branch pipe is communicated with the second aerobic aeration pipe, the fifth valve is further arranged on the second branch pipe, and the fifth valve, the second branch pipe and the second aerobic aeration pipe are all positioned below the liquid level of the aerobic tank.

Furthermore, the inner diameter of the aeration hole at the top end of the second aerobic aeration pipe is larger than that at the bottom end of the second aerobic aeration pipe.

Furthermore, the emptying aeration mechanism comprises a second vent pipe, a sixth valve, a second gas flowmeter and a seventh valve, wherein the sixth valve, the second gas flowmeter and the seventh valve are sequentially arranged between the two ends of the second vent pipe, one end of the second vent pipe is communicated to the gas collecting box, and the other end of the second vent pipe is positioned below the liquid level of the aerobic tank.

Furthermore, the aeration main pipe mechanism comprises third air pipes, eighth valves, third gas flow meters and ninth valves, wherein an eighth valve, a third gas flow meter and a ninth valve are sequentially arranged between two ends of each third air pipe, one end of each third air pipe is communicated to the gas collecting box, and the other end of each third air pipe is communicated to a pipe opening of the MBR membrane component in the aerobic tank.

Further, add medicine mechanism and include agitator tank and stirring aeration pipe, and the agitator tank is the box structure, and inside stirring aeration pipe installed to the agitator tank, stirring aeration pipe one end passed behind the agitator tank top surface and linked to a first branch pipe.

Further, the first valve, the second valve, the third valve, the fourth valve, the fifth valve, the sixth valve, the seventh valve, the eighth valve, the ninth valve and the tenth valve are all mechanical valves.

Furthermore, one end of the first vent pipe (51) in the aerobic tank is subjected to diameter-changing treatment.

Compared with the prior art, the aeration system with the compatible immersed MBR tank has the following beneficial effects:

(1) a have compatible submergence formula MBR pond aeration systems, easy operation is nimble, the investment is lower, life is longer simultaneously and have stronger compatible characteristics, but wide application in the whole aeration systems of small-size integrated equipment, go to decide the main quantity of third tee bend trachea according to the concrete quantity of MBR membrane module in the equipment, increase and decrease compatible aeration main pipe mechanism, first good oxygen aeration pipe, the good oxygen aeration pipe quantity of second in a flexible way when the design is used according to cell body parameter, great flexibility has, but wide application in handling capacity is not more than 400m³D, in an immersed MBR membrane tank aeration system of the integrated sewage treatment equipment.

(2) The utility model discloses an have compatible submergence formula MBR pond aeration systems, first valve, second valve, third valve, fourth valve, fifth valve, sixth valve, seventh valve, eighth valve, ninth valve and tenth valve are mechanical valves, mainly act on the regulation amount of wind, play certain gas diffusion effect simultaneously, extension fan life, first aerobic aeration pipe is mainly used for the stirring of cell body whole, play the stirring effect, prevent the siltation of bottom mud; the aeration pore internal diameter on second good oxygen aeration pipe top is greater than the aeration pore internal diameter of second good oxygen aeration pipe bottom, make under the effect of water pressure and atmospheric pressure, the aeration hole of aeration pipe bottom has certain mud effect of arranging concurrently, the jam of the aeration pipeline section of second good oxygen aeration pipe has effectively been prevented, the life of being suitable for of having increased equipment has reduced the operation maintenance cost in a variable phase, can nimble operation regulation amount of wind size erode the pipeline during fortune dimension, aeration in the pond evenly effectively prevents right angle limit dead angle mud siltation simultaneously, first good oxygen aeration pipe and second good oxygen aeration pipe port are the encapsulated situation, mainly used for improves the deposit of equipment inner wall support and structure dead angle silt, more be favorable to adjusting the whole aeration rate of cell body simultaneously.

Drawings

The accompanying drawings, which form a part hereof, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention without undue limitation. In the drawings:

FIG. 1 is a schematic diagram of an aeration system with a compatible submerged MBR tank, according to an embodiment of the present invention;

FIG. 2 is a schematic view of an aerobic aeration mechanism according to an embodiment of the present invention;

fig. 3 is an assembly diagram of the connection mechanism and the dosing mechanism according to the embodiment of the present invention.

Description of reference numerals:

1-a gas collection box; 2-a first blowing mechanism; 3-a second blowing mechanism; 4-a connection mechanism; 41-connecting pipe; 42-a first branch pipe; 5-aerobic aeration mechanism; 51-a first vent pipe; 52-a first aerobic aeration pipe; 53-second branch; 54-a second aerobic aeration pipe; 6-emptying an aeration mechanism; 7-an aeration main pipe mechanism; 8-a dosing mechanism; 81-stirring box; 82-stirring aeration pipe.

Detailed Description

It should be noted that, in the present invention, the embodiments and features of the embodiments may be combined with each other without conflict.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are used merely for convenience of description and for simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention. Furthermore, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first," "second," etc. may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art through specific situations.

The present invention will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.

As shown in fig. 1-3, an aeration system with compatible submerged MBR tanks includes: the air collecting box 1 is of a box body structure, the air collecting box 1 is communicated to the air outlet end of the second air pump through the second air distribution pipe, the second air distribution pipe is mounted with the second valve, the connecting mechanism 4 comprises a connecting pipe 41, a first branch pipe 42, a third valve and a tenth valve, the air collecting box 1 is communicated to one end of the connecting pipe 41, the other end of the connecting pipe 41 is communicated with one end of a plurality of first branch pipes 42, the other end of each first branch pipe 42 is communicated to the medicine adding mechanism 8, each first branch pipe 42 is respectively provided with a third valve, the connecting pipe 41 is also provided with a tenth valve, the gas collecting tank 1 is communicated with aeration discs at the bottoms of a plurality of aerobic tanks through an aerobic aeration mechanism 5, the gas collecting tank 1 is also communicated with one end of a vent aeration mechanism 6, the other end of the vent aeration mechanism 6 is positioned below the liquid level of the aerobic tanks, the gas collecting tank 1 is also communicated with one end of a plurality of aeration main pipe mechanisms 7, the other end of each aeration main pipe mechanism 7 is respectively communicated with a pipe orifice of an MBR membrane component in the aerobic tanks, a first air pump and a second air pump are respectively connected with a controller in a signal mode, the controller is a PLC, the model of the PLC is Siemens S7-200smart, the MBR membrane component is an immersed MBR membrane component (the MBR membrane component is the prior art) and is responsible for supplying gas to the MBR membrane component according to the required design requirement, the national standard seamless steel pipe of DN65 or DN50, the length of the pipe section can be flexibly determined according to the size of the equipment and the connection condition, specific pipe diameters of the first branch pipe 42, the second branch pipe 53, the connecting pipe 41, the first vent pipe, the second vent pipe and the third vent pipe include, but are not limited to DN65, DN 50. The nominal diameter of the interface can be determined according to the requirement of main equipment for connecting an MBR membrane frame, the types of the first air pump and the second air pump are generally selected from a Roots blower, a rotary blower or a high-pressure air pump with the same type of a large brand on the market, the specific type is determined by specific parameters such as aeration quantity required by the whole biochemical system, and the diameter change treatment is performed on one end of the first air pipe 51 in the aerobic tank (for example, the first air pipe 51 is the pipe diameter of DN65, and the pipe diameter of the part of the first air pipe 51 in the aerobic tank is DN 50. the advantage that the pipe diameter is reduced under the condition of the same air quantity and air pressure, the air speed is correspondingly increased, the aeration intensity can be met, and the aeration can be better performed);

the aerobic aeration mechanism 5 comprises a third valve, a first gas flowmeter, a fourth valve, a fifth valve, a first aeration pipe 51, a first aerobic aeration pipe 52, a second branch pipe 53 and a second aerobic aeration pipe 54, one end of the first aeration pipe 51 is communicated with the gas collection tank 1, the other end of the first aeration pipe 51 is communicated with the first aerobic aeration pipe 52, the other end of the first aerobic aeration pipe 52 is respectively communicated with aeration discs at the bottom of a plurality of aerobic tanks, the first aeration pipe 51 is provided with the third valve, the first gas flowmeter, the fourth valve and the second branch pipe 53 in sequence from one end close to the water collection tank 1 to one end close to the first aerobic aeration pipe 52, the other end of the second branch pipe 53 is communicated with the second aerobic aeration pipe 54, the second branch pipe 53 is also provided with the fifth valve, the second branch pipe 53 and the second aerobic aeration pipe 54 are all positioned below the liquid level of the aerobic tank, the first aerobic aeration pipe 52 is mainly used for stirring the whole tank body, stirring to prevent sludge from depositing at the bottom;

the inner diameter of the aeration hole at the top end of the second aerobic aeration pipe 54 is larger than that at the bottom end of the second aerobic aeration pipe 54, so that under the action of water pressure and air pressure, the aeration hole at the bottom end of the aeration pipe 54 has a certain sludge discharge function, the blockage of the aeration pipe section of the second aerobic aeration pipe 54 is effectively prevented, the service life of the equipment is prolonged, the operation and maintenance cost is reduced, the air volume can be flexibly operated and adjusted during operation and maintenance, a pipeline is washed, meanwhile, the aeration in the tank is uniform, the sludge deposition at right-angle dead corners is effectively prevented, the pipe ports of the first aerobic aeration pipe 52 and the second aerobic aeration pipe 54 are in a closed state, the device is mainly used for improving the support of the inner wall of the equipment and the deposition of sludge at structural dead corners, and the whole aeration quantity of the tank body is more favorably adjusted;

the emptying aeration mechanism 6 comprises a second vent pipe (the vertical distance of the second vent pipe is 100mm below the liquid level of the aerobic tank, the second vent pipe is mainly used for flexibly adjusting and relieving the pressure of fan equipment and prolonging the service life of air pump equipment, meanwhile, if the whole equipment is subjected to upgrading optimization or the number of membrane components is increased, the pipeline can also be compatible with an aeration pipeline of a newly-added component, the problem of the pipeline generated by the increase of main equipment is more effectively solved under the condition of small equipment change), a sixth valve, a second gas flowmeter and a seventh valve are arranged between the two ends of the second vent pipe, a sixth valve, a second gas flowmeter and a seventh valve are sequentially arranged between the two ends of the second vent pipe, one end of the second vent pipe is communicated to the gas collection box 1, the other end of the second vent pipe is positioned below the liquid level of the aerobic tank, the second gas flowmeter, the third gas flowmeter, the first valve, the second valve, The third valve, the fourth valve, the fifth valve, the sixth valve, the seventh valve, the eighth valve, the ninth valve and the tenth valve ensure that the air is connected into the sealed steel gas distribution chamber through the fan to be a unidirectional irreversible process, the service life of the fan is prolonged, the air pressure of the fan is monitored, and the maintenance is easy;

the aeration main pipe mechanism 7 comprises third air pipes, eighth valves, third gas flowmeters and ninth valves, wherein an eighth valve, a third gas flowmeter and a ninth valve are sequentially arranged between two ends of each third air pipe, one end of each third air pipe is communicated to the gas collecting box 1, the other end of each third air pipe is communicated to a pipe orifice of the MBR membrane component in the aerobic tank, the first gas flowmeter, the second gas flowmeter and the third gas flowmeter are convenient for workers to observe gas flow, the first gas flowmeter, the second gas flowmeter and the third gas flowmeter are glass rotameters under the general condition, and the treatment capacity is not more than 400m³When the device is applied, the model is generally selected to have the measurement accuracy of +/-1.5 percent, the pipe diameter DN15-DN50 and the gas measurement selection range of 0.25m³/h-100m³A flow meter within/h;

the dosing mechanism 8 comprises a stirring tank 81 and a stirring aeration pipe 82, the stirring tank 81 is of a tank structure, the stirring aeration pipe 82 is installed inside the stirring tank 81, one end of the stirring aeration pipe 82 penetrates through the top surface of the stirring tank 81 and then is communicated to a first branch pipe 42, and an aeration hole of the stirring aeration pipe 82 plays a role in medicine stirring;

the first valve, the second valve, the third valve, the fourth valve, the fifth valve, the sixth valve, the seventh valve, the eighth valve, the ninth valve and the tenth valve are all mechanical valves (generally in an open state), the models are all RVHX Z45X-16Q, the air quantity adjusting device mainly acts on air quantity adjustment, meanwhile, a certain air dispersing effect is achieved, the service life of a fan is prolonged, the air quantity distributing device mainly acts on better control of the distribution size of pipelines with different effects of the system in the operation process of the device, the utilization rate of the air quantity is effectively improved when the aeration system with the compatible immersed MBR pool is used more flexibly in operation and maintenance, partial stirring devices are reduced, and the overall device cost of integrated devices using the aeration system is effectively reduced.

The utility model discloses an it is stronger wholly compatible, can be suitable for the change in a flexible way, compatible different quantity specification and equipment promote the convenience that the mark was reformed transform simultaneously, through the selected amount of wind to the air pump at furthest's reasonable application, this aeration structure can be well from gas collection box 1 with the air, good oxygen aeration mechanism 5, unloading aeration mechanism 6, aeration dry tube mechanism 7 distributes the MBR membrane module, the aeration dish in good oxygen pond and add the position that need stir or aeration in equipments such as 8 of medicine mechanism, guarantee the activity of microorganism among the biochemical system, improve biological oxidative decomposition function, the aeration volume that can accomplish each position in the good oxygen pond of equipment distributes more evenly rationally, consider the silt condition and the pipeline problem when equipment maintenance or the transformation of having improved bottom and equipment inner wall bearing structure dead angle.

The utility model discloses the theory of operation: as shown in fig. 1, B is an aerobic tank, the first valve, the second valve, the third valve, the fourth valve, the fifth valve, the sixth valve, the seventh valve, the eighth valve, the ninth valve and the tenth valve are all generally in an open state, the first fan and the second fan (wherein the first fan and the second fan are alternately supplied air, the alternate operation is controlled by the PLC electric control system, the period is usually one month) perform centralized air supply under the control of the PLC electric control system, the first fan and the second fan supply air after passing through the steel gas sealing structure (i.e. the gas collecting box 1) and the air volume is uniform, and then the air volume is led to each point of the aeration system (i.e. the connecting mechanism 4, the aerobic aeration mechanism 5, the emptying aeration mechanism 6, the aeration dry pipe mechanism 7 and the dosing mechanism 8) through the other end of the gas collecting box 1, the stirring aeration pipe 82 leading to the mechanism 8 is in a working state in the stirring box 81 to provide stirring action for the drugs and drugs in the stirring box 81, the gas passes through the first vent pipe 51 and then respectively leads to the first aerobic aeration pipe 52 and the second aerobic aeration pipe 54 for aeration work, the gas reaches the aerobic tank through the second vent pipe and generally plays a role in aeration and emptying, the gas is designed according to the conditions encountered in the practical application in the past, the gas is mainly used for protecting the first fan and the second fan, but also can be used as a change line when the equipment is upgraded and transformed, the gas leads to the aeration pipe of the MBR membrane component through the third vent pipe, and the gas mainly aims at providing a working environment for the equipment.

The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. An aeration system with compatible immersed MBR tank is characterized in that: comprises a gas collecting box (1), a first blowing mechanism (2), a second blowing mechanism (3), a connecting mechanism (4), an aerobic aeration mechanism (5), a venting aeration mechanism (6), an aeration main pipe mechanism (7) and a medicine adding mechanism (8), wherein the first blowing mechanism (2) comprises a first gas distribution pipe, a first valve and a first air pump, the gas collecting box (1) is communicated to the gas outlet end of the first air pump through the first gas distribution pipe, the first valve is arranged on the first gas distribution pipe, the second blowing mechanism (3) comprises a second gas distribution pipe, a second valve and a second air pump, the gas collecting box (1) is of a box body structure, the gas collecting box (1) is communicated to the gas outlet end of the second air pump through the second gas distribution pipe, the second valve is arranged on the second gas distribution pipe, the connecting mechanism (4) comprises a connecting pipe (41), a first branch pipe (42), a third valve and a tenth valve, the gas collecting box (1) is communicated to one end of the connecting pipe (41), the other end of the connecting pipe (41) is communicated with one end of a plurality of first branch pipes (42), the other end of each first branch pipe (42) is communicated to the dosing mechanism (8), a third valve is respectively installed on each first branch pipe (42), a tenth valve is further installed on the connecting pipe (41), the gas collecting box (1) is communicated to aeration discs at the bottoms of a plurality of aerobic tanks through the aerobic aeration mechanisms (5), the gas collecting box (1) is further communicated to one end of the emptying aeration mechanism (6), the other end of the emptying aeration mechanism (6) is located below the liquid level of the aerobic tanks, the gas collecting box (1) is further communicated with one ends of a plurality of aeration main pipe mechanisms (7), the other end of each aeration main pipe mechanism (7) is respectively communicated to a pipe opening of an MBR membrane component in the aerobic tanks, and the first air pump and the second air pump are respectively in signal connection with the controller.

2. The MBR tank aeration system with compatibility according to claim 1, wherein: the aerobic aeration mechanism (5) comprises a third valve, a first gas flowmeter, a fourth valve, a fifth valve, a first air pipe (51), a first aerobic aeration pipe (52), a second branch pipe (53) and a second aerobic aeration pipe (54), one end of the first air pipe (51) is communicated to the gas collection box (1), the other end of the first air pipe (51) is communicated to the first aerobic aeration pipe (52), the other end of the first aerobic aeration pipe (52) is respectively communicated to aeration discs at the bottoms of the aerobic tanks, the first air pipe (51) is sequentially provided with the third valve, the first gas flowmeter, the fourth valve and the second branch pipe (53) from one end close to the water collection box (1) to one end close to the first aerobic aeration pipe (52), the other end of the second branch pipe (53) is communicated with the second aerobic aeration pipe (54), the fifth valve is further arranged on the second branch pipe (53), and the fifth valve, The second branch pipe (53) and the second aerobic aeration pipe (54) are both positioned below the liquid level of the aerobic tank.

3. The MBR tank aeration system with compatibility according to claim 2, wherein: the inner diameter of the aeration hole at the top end of the second aerobic aeration pipe (54) is larger than that of the aeration hole at the bottom end of the second aerobic aeration pipe (54).

4. The MBR tank aeration system with compatibility according to claim 1, wherein: the emptying aeration mechanism (6) comprises a second vent pipe, a sixth valve, a second gas flowmeter and a seventh valve, the sixth valve, the second gas flowmeter and the seventh valve are sequentially arranged between the two ends of the second vent pipe, one end of the second vent pipe is communicated to the gas collection tank (1), and the other end of the second vent pipe is positioned below the liquid level of the aerobic tank.

5. The MBR tank aeration system with compatibility according to claim 1, wherein: the aeration main pipe mechanism (7) comprises third air pipes, eighth valves, third gas flow meters and ninth valves, wherein an eighth valve, a third gas flow meter and a ninth valve are sequentially arranged between two ends of each third air pipe, one end of each third air pipe is communicated to the gas collecting box (1), and the other end of each third air pipe is communicated to a pipe opening of the MBR membrane component in the aerobic tank.

6. The MBR tank aeration system with compatibility according to claim 1, wherein: add medicine mechanism (8) and include agitator tank (81) and stirring aeration pipe (82), agitator tank (81) are the box structure, and inside stirring aeration pipe (82) installed to agitator tank (81), intercommunication to a first branch pipe (42) behind agitator tank (81) top surface is passed to stirring aeration pipe (82) one end.

7. The MBR tank aeration system with compatibility according to claim 5, wherein: the first valve, the second valve, the third valve, the fourth valve, the fifth valve, the sixth valve, the seventh valve, the eighth valve, the ninth valve and the tenth valve are all mechanical valves.

8. The MBR tank aeration system with compatibility according to claim 2, wherein: one end of the first vent pipe (51) positioned in the aerobic tank is subjected to reducing treatment.