CN214299488U - MBR intermittent type aeration equipment - Google Patents

Abstract

The utility model discloses a MBR intermittent type aeration equipment, the cask that has the bung including the upper end, cask inside is separated into upper portion and lower part through intermediate bottom, the upper portion is connected with total air inlet, lower part is cut apart into left half and right half through square baffle, be equipped with left gas outlet and right gas outlet on the lateral wall of cask, left gas outlet intercommunication left half, right gas outlet intercommunication right half, be equipped with two through-holes that communicate left half and right half respectively on the intermediate bottom, but relative pivoted laminating has the carousel on the intermediate bottom, the carousel covers the through-hole, the carousel is driven by the motor and is rotated, be equipped with the air vent on the carousel, the air vent is corresponding with the through-hole. The utility model provides a simple, stable intermittent type aeration equipment for intermittent type aeration MBR system can the steady operation. The valve has the advantages of stable operation, adjustable gap frequency and the like, and effectively solves the problem that the conventional valve switch aeration process is frequently failed.

Description

MBR intermittent type aeration equipment

Technical Field

The utility model belongs to the technical field of aeration equipment, concretely relates to MBR intermittent type aeration equipment.

Background

The membrane bioreactor (hereinafter referred to as MBR) uses a membrane separation technology to replace the traditional secondary sedimentation tank, and filters the sewage after biochemical treatment out of the bioreactor to obtain the treated water with low turbidity. At the same time, sludge, bacteria and macromolecular organic matter in the system are also kept in the reactor. Compared with the traditional activated sludge process, the MBR technology has good effluent quality, very low COD, BOD and turbidity, most bacteria and viruses are intercepted, and the effluent quality reaches or is superior to the water quality standard of domestic miscellaneous water. Can be directly used as reclaimed water for urban landscaping, cleaning, fire fighting, cooling circulating water and other applications. The high-efficiency interception function of the membrane in the MBR technology also realizes the separation of the sewage retention time and the microorganism retention time, and the method has the advantages of high microorganism and sludge concentration, small occupied area, small sludge yield and high treatment efficiency.

When the MBR membrane is operated, the surface of the membrane needs to be washed by large aeration quantity, so that the stable operation of the MBR membrane system is prevented from being influenced by excessive sludge deposition on the surface of the membrane. In the actual operation process of the MBR membrane, the gas-water ratio is generally between 15 and 30, and in some special fields, the gas-water ratio even exceeds 50. An excessively high gas-water ratio indicates an excessively high energy consumption for aeration operation. Too high operating energy consumption becomes a short board for the MBR treatment process and needs to be improved.

Known researches find that intermittent aeration can effectively reduce the air-water ratio of MBR operation, and is a very effective method for reducing the energy consumption of MBR operation. However, the existing method for generating intermittent aeration is mostly realized by opening and closing a valve, and for the valve operation of opening and closing for many times per minute, the condition of valve opening and closing failure often occurs, so that the intermittent aeration cannot be applied in a large scale.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problem, the utility model discloses a technical scheme is: the utility model provides a MBR intermittent type aeration equipment, has the cask of bung including the upper end, and the cask is inside to be separated into upper portion and lower part through intermediate bottom, and the upper portion is connected with total air inlet, and lower part is cut apart into left half and right half through square baffle, and sealing connection between the higher authority of square baffle and the intermediate bottom is equipped with left gas outlet and right gas outlet on the lateral wall of cask, and left gas outlet intercommunication left half, right gas outlet intercommunication right half, be equipped with two through-holes that communicate left half and right half respectively on the intermediate bottom, but relative pivoted laminating has the carousel on the intermediate bottom, and the carousel covers the through-hole, and the carousel is driven by the motor and rotates, is equipped with the air vent on the carousel, and the air vent is corresponding with the through-hole.

Preferably, the through holes are semi-ring-shaped, the semi-ring-shaped through holes are coaxial with the drum, connecting ribs are respectively arranged between two ends of each semi-ring-shaped through hole, the upper surfaces of the connecting ribs are flush with the upper surface of the middle partition plate, and the lower surfaces of the connecting ribs are in sealing connection with the square partition plate.

Preferably, the vent hole is defined by an outer arc edge, an inner arc edge and two equidistant side edges, the circle center of the outer arc edge and the circle center of the inner arc edge are both located on the axis of the turntable, and the length of each side edge is equal to the width of the semicircular through hole.

Preferably, the through holes are divided into a plurality of small through holes by a plurality of separating ribs, and the separating ribs all point to the axis of the middle partition plate.

Preferably, the lower surface of the turntable is a smooth surface, the connecting ribs and the middle partition plate are integrally formed, and the upper surface of the middle partition plate and the upper surface of the connecting ribs are both smooth surfaces.

Preferably, the turntable is made of nylon or polytetrafluoroethylene.

Preferably, the motor is mounted on the barrel cover and located outside the barrel, the upper portion of the motor is provided with a connecting shaft, the upper end of the connecting shaft is fixedly connected with a rotating shaft of the motor through a coupling, the lower end of the connecting shaft is fixedly connected with a turntable, and the rotating shaft, the connecting shaft and the turntable of the motor are coaxially arranged.

Preferably, in the above technical solution, the motor is a variable frequency motor.

Preferably, the left air outlet, the right air outlet and the total air inlet are respectively provided with a connecting flange.

The utility model has the advantages that: the utility model provides a simple, stable intermittent type aeration equipment for intermittent type aeration MBR system can the steady operation. The valve has the advantages of stable operation, adjustable gap frequency and the like, and effectively solves the problem that the conventional valve switch aeration process is frequently failed.

Drawings

Fig. 1 is a schematic structural diagram of the present invention;

fig. 2 is a schematic cross-sectional structure of the present invention;

FIG. 3 is a schematic structural view of the turntable;

fig. 4 is a schematic structural view of the intermediate partition.

Detailed Description

The technical solution of the present invention will be described clearly and completely with reference to the accompanying drawings, and obviously, the described embodiments are some, but not all embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

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 in specific cases to those skilled in the art.

As shown in fig. 1-4, an MBR intermittent aeration device comprises a barrel 2 with a barrel cover 1 at the upper end, the barrel 2 is divided into an upper part 4 and a lower part by a middle partition plate 3, the upper part 4 is connected with a total air inlet 5, the lower part is divided into a left half part 7 and a right half part 8 by a square partition plate 6, the upper side of the square partition plate 6 is hermetically connected with the middle partition plate 3, the side wall of the barrel 2 is provided with a left air outlet 9 and a right air outlet 10, the left air outlet 9 is communicated with the left half part 7, the right air outlet 10 is communicated with the right half part 8, the middle partition plate 3 is provided with two through holes 11 which are respectively communicated with the left half part 7 and the right half part 8, the middle partition plate 3 is attached with a rotary disc 12 which can rotate relatively, the rotary disc 12 covers the through holes 11, the rotary disc 12 is driven by a motor 13 to rotate, the rotary disc 12 is provided with vent holes 14, and the vent holes 14 correspond to the through holes 11. An annular table 15 is arranged on the inner wall of the drum 2, and the periphery of the middle partition plate 3 is arranged on the annular table 15 and is in sealing connection with the annular table 15 through glue.

Furthermore, the through holes 11 are semi-ring-shaped, the semi-ring-shaped through holes 11 are coaxial with the barrel 2, the connecting ribs 16 are respectively arranged between the two ends of the two semi-ring-shaped through holes 11, the upper surfaces of the connecting ribs 16 are flush with the upper surface of the middle partition plate 3, and the lower surfaces of the connecting ribs 16 are hermetically connected with the square partition plate 6.

Furthermore, the vent hole 14 is defined by an outer arc edge, an inner arc edge 18 and two equidistant side edges 19, the center of the outer arc edge and the center of the inner arc edge 18 are both located on the axis of the turntable 12, and the length of the side edges 19 is equal to the width of the semicircular through hole 11.

Further, the through hole 11 is divided into a plurality of small through holes 22 by a plurality of partition ribs 21, and the partition ribs 21 all point to the axis of the middle partition plate 3.

Further, the lower surface of the rotary table 12 is a smooth surface, the connecting ribs 16 and the middle partition plate 3 are integrally formed, and both the upper surface of the middle partition plate 3 and the upper surface of the connecting ribs 16 are smooth surfaces. The lower surface of the rotary table 12 and the upper surface of the middle partition plate 3 are in direct contact rotation, and the sealing effect is improved after the lower surfaces are smooth surfaces, so that gas is prevented from passing through.

Further, the turntable 12 is made of nylon or teflon. This is to reduce the friction with the intermediate partition 3 and to improve the wear resistance of the turntable 12.

Further, the motor 13 is installed on the barrel cover 1 and located outside the barrel 2, the upper portion 4 is provided with a connecting shaft 17, the upper end of the connecting shaft 17 is fixedly connected with a rotating shaft of the motor 13 through a coupling, the lower end of the connecting shaft 17 is fixedly connected with the rotating disc 12, and the rotating shaft of the motor 13, the connecting shaft 17 and the rotating disc 12 are coaxially arranged.

Further, the motor 13 is a variable frequency motor.

Furthermore, the left air outlet 9, the right air outlet 10 and the total air inlet 5 are respectively provided with a connecting flange 20.

The total inlet 5 is pressed into the high-pressure gas by the compressor. The motor 13 drives the rotary table 12 to rotate, the vent holes 14 on the rotary table 12 do circular motion, and the motion track is consistent with the two semi-annular through holes 11 on the lower middle partition plate 3. The gas enters the upper section 4 through the total gas inlet 5. Since the lower part is divided into the left half 7 and the right half 8 by the square partition 6, the two semi-annular through holes 11 of the middle partition 3 communicate with the left half 7 and the right half 8, respectively. When the vent hole 14 on the rotary disk 12 rotates to pass through the semi-annular through hole 11 communicated with the left half part 7, the gas flows into the left half part 7 and is discharged through the left gas outlet 9; when the vent hole 14 of the turntable 12 passes through the semi-annular through hole 11 communicating with the right half 8, the gas flows into the right half 8 and is discharged through the right gas outlet 10. The left air outlet 9 and the right air outlet 10 are respectively connected with an aeration pipe through a flange 20 and an air pipe, and the aeration pipes are respectively arranged below different MBR membranes for aeration. Gas does not circulate between the left half 7 and the right half 8. Thus realizing the gas reversing of the intermittent aeration device. The intermittent aeration device can control the aeration and the stop time of the MBR to be between 0.5 second and 1 minute respectively, and a more preferable scheme is between 1 second and 15 seconds.

It is worth mentioning that the technical features such as the inverter motor that the utility model discloses a patent application relates to should be regarded as prior art, and the concrete structure of these technical features, theory of operation and the control mode that may involve, spatial arrangement mode adopt the conventional selection in this field can, should not be regarded as the invention point of the utility model discloses a place, the utility model discloses a do not do further specifically expand the detailing.

Having described in detail preferred embodiments of the present invention, it is to be understood that modifications and variations can be made by persons skilled in the art without inventive faculty, and therefore all technical solutions which can be obtained by a person skilled in the art based on the concepts of the present invention through logic analysis, reasoning or limited experimentation will fall within the scope of protection defined by the claims.

Claims (9)

1. The utility model provides a MBR intermittent type aeration equipment, its characterized in that, has the cask of bung including the upper end, and the cask is inside to be separated into upper portion and lower part through intermediate bottom, and the upper portion is connected with total air inlet, and lower part is cut apart into left half and right half through square baffle, and sealing connection between the higher authority of square baffle and the intermediate bottom is equipped with left gas outlet and right gas outlet on the lateral wall of cask, and left gas outlet intercommunication left half, right gas outlet intercommunication right half, be equipped with two through-holes that communicate left half and right half respectively on the intermediate bottom, but relative pivoted laminating has the carousel on the intermediate bottom, and the carousel covers the through-hole, and the carousel is driven by the motor and rotates, is equipped with the air vent on the carousel, and the air vent is corresponding with the through-hole.

2. The MBR intermittent aeration device as set forth in claim 1, wherein the through holes are semi-ring shaped, the semi-ring shaped through holes are coaxial with the barrel, connecting ribs are respectively provided between both ends of the two semi-ring shaped through holes, the upper surfaces of the connecting ribs are flush with the upper surface of the middle partition plate, and the lower surfaces of the connecting ribs are hermetically connected with the square partition plate.

3. The MBR intermittent aeration device of claim 2, wherein the vent holes are defined by an outer arc edge, an inner arc edge and two equidistant side edges, the center of the outer arc edge and the center of the inner arc edge are both located on the axis of the turntable, and the length of each side edge is equal to the width of the semi-annular through hole.

4. The MBR intermittent aeration apparatus of claim 3, wherein the through holes are divided into a plurality of small through holes by a plurality of dividing ribs, and the dividing ribs are all directed to the axis of the middle partition plate.

5. The MBR intermittent aeration apparatus of claim 4, wherein the lower surface of the rotating disc is smooth, the connecting ribs are integrally formed with the middle partition plate, and both the upper surface of the middle partition plate and the upper surface of the connecting ribs are smooth.

6. The MBR intermittent aeration apparatus of claim 5, wherein the rotating disc is made of nylon or polytetrafluoroethylene.

7. The MBR intermittent aeration device as set forth in claim 1 or 6, wherein the motor is mounted on the cover and located outside the drum, the upper portion is provided with a connecting shaft, the upper end of the connecting shaft is fixedly connected with the rotating shaft of the motor through a coupling, the lower end of the connecting shaft is fixedly connected with the rotating disk, and the rotating shaft of the motor, the connecting shaft and the rotating disk are coaxially arranged.

8. The MBR intermittent aeration apparatus of claim 7, wherein the motor is a variable frequency motor.

9. The MBR intermittent aeration apparatus according to claim 8, wherein the left outlet port, the right outlet port, and the total inlet port are respectively provided with a connecting flange.

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