Modularized microporous membrane energy-saving aerator

Abstract

The utility model relates to a modularized microporous membrane energy-saving aerator which comprises a modularized membrane assembly, a supporting base with an air guide groove and an air flow distribution system. Quick replacement is realized through a clamping structure of the detachable diaphragm module and the base, and the air guide groove adopts a tapered spiral air channel design and is matched with a flow guide bulge at the bottom of the diaphragm to form a turbulent flow effect. A special sealing ring assembly realizes air chamber sealing, and an anti-backflow mechanism maintains stable air pressure. The structure obviously reduces the energy consumption, improves the oxygen transfer efficiency and prolongs the maintenance period.

Description

TECHNICAL FIELD

[0001] The utility model belongs to sewage treatment equipment technical field, concretely relates to a modularization microporous diaphragm energy -conserving aerator. BACKGROUND

[0002] In the sewage treatment industry, aerator as one of the core equipment, its performance directly influences the effect and cost of sewage treatment. However, traditional aerator has a series of problems to be solved urgently:

[0003] Membrane replacement is difficult: the membrane of traditional aerator usually adopts complicated connection mode, such as bolt connection etc. When the membrane needs to be replaced, this connection mode makes the operation process cumbersome, needs to consume a lot of time and manpower. Moreover, in some cases, in order to replace the membrane, the operation of sewage treatment equipment has to be stopped, and the water in the treatment tank is emptied, which not only influences the continuity of sewage treatment, but also greatly reduces the treatment efficiency and increases the operation cost.

[0004] Airflow distribution is uneven: the structural design of traditional aerator often leads to uneven distribution of airflow when entering sewage. This makes the dissolved oxygen content in different areas of sewage have large difference, and the activity of microorganisms in some areas may be affected due to insufficient oxygen, resulting in poor sewage treatment effect; while in another part of the area, it may cause resource waste due to excess oxygen. This uneven airflow distribution may also cause local over-aeration or insufficient aeration, further affecting the stability and efficiency of sewage treatment.

[0005] High energy consumption: due to uneven airflow distribution and unreasonable structure of aerator itself, traditional aerator needs to consume a lot of energy to maintain sufficient aeration effect during operation. In order to make up for the influence of uneven airflow distribution, it is often necessary to increase the gas supply pressure or increase the gas supply amount, which undoubtedly increases the energy consumption and improves the cost of sewage treatment.

[0006] Although some aerators with modular design at present try to solve the above problems, most of them still adopt bolt connection etc., and still cannot avoid the operation of stopping and draining water during maintenance, and cannot fundamentally solve the defects of traditional aerator. Therefore, it is of important practical significance to develop a new type of aerator which can effectively solve the problems of membrane replacement difficulty, uneven airflow distribution and high energy consumption. SUMMARY

[0007] The utility model aims at providing a modularization microporous diaphragm energy -conserving aerator, through the innovative structural design, solves the problems of membrane replacement difficulty, uneven airflow distribution, high energy consumption etc. of traditional aerator, improves the sewage treatment efficiency, reduces the operation cost, and enhances the stability and reliability of equipment.

[0008] To solve the above technical problems, the utility model discloses the following technical scheme: A modularization microporous membrane piece energy -conserving aerator, containing detachable membrane piece module, with the support base of air guide groove, sealing assembly, the membrane piece module contains microporous membrane piece, support frame and flow guide boss, the support base is equipped with taper screw -thread air guide groove and clamping structure.

[0009] Preferably, the microporous membrane piece bottom surface is equipped with equidistance distribution hemispherical flow guide boss, and the boss height decreases from center to edge.

[0010] Preferably, the fixed end of the motor is fixedly installed with an L-shaped mounting bracket, and one end of the L-shaped mounting bracket is fixedly connected with the upper surface of the equipment disc.

[0011] Preferably, the air guide groove cross section is trapezoidal, and the groove depth decreases by 15-20% along the air flow direction.

[0012] Preferably, the sealing assembly contains an elastic sealing ring and a limiting pressure ring, and the sealing ring is provided with a bidirectional sealing lip.

[0013] Preferably, the support base bottom is provided with an anti-backflow device containing a floating valve core and a guide column.

[0014] Preferably, the clamping structure is a rotary locking type containing a clamping groove and an elastic buckle.

[0015] Preferably, the support frame is provided with a module identification mark area adopting a concave-convex coding structure.

[0016] Compared with the prior art, the utility model has the beneficial effects that:

[0017] 1. The clamping structure of the rotary locking type realizes the quick replacement of the membrane piece module under the waterless working condition. Compared with the traditional bolt connection mode, the time for replacing the membrane piece is greatly shortened. For example, in the actual application of the municipal sewage treatment plant, the traditional aerator takes 4 hours to replace the membrane piece, while the aerator adopting the utility model takes 15 minutes to replace the membrane piece, greatly improving the maintenance efficiency of the equipment and reducing the sewage treatment interruption time caused by equipment maintenance.

[0018] 2. The taper screw -thread air guide groove and the flow guide boss work cooperatively to generate controllable turbulence. This special flow field distribution makes the gas more evenly dispersed after entering the sewage, reduces the bubble diameter, increases the bubble residence time in the sewage, and thus significantly improves the aeration efficiency. According to actual test, the oxygen transfer efficiency of the aerator adopting the utility model is obviously improved compared with the traditional aerator, effectively reducing the energy consumption in the sewage treatment process.

[0019] 3. The double sealing structure formed by the elastic sealing ring and the limiting pressure ring, along with the bidirectional sealing lip design of the sealing ring, ensures the aerator's sealing performance during operation. This not only prevents gas leakage and improves aeration efficiency but also avoids wastewater entering the aerator and causing damage, thus extending the aerator's service life.

[0020] 4. The self-cleaning guide protrusions effectively prevent clogging of the microporous membrane pores. During aeration, the guide protrusions direct the airflow, allowing the gas to pass through the microporous membrane more evenly, reducing the accumulation of impurities at the pores, lowering the risk of clogging, and ensuring the long-term stable operation of the aerator. Attached Figure Description

[0021] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0022] Fig. 1 This is a schematic diagram of the disassembled structure of this utility model.

[0023] Fig. 2 This is a partially enlarged schematic diagram of the sealing component of this utility model.

[0024] In the diagram: 1. Diaphragm module; 11. Microporous diaphragm; 12. Support frame; 121. Module identification area; 13. Flow guide protrusion; 2. Support base; 21. Air guide groove; 22. Snap-fit ​​structure; 3. Sealing assembly; 31. Sealing ring; 32. Limiting pressure ring; 311. Sealing lip; 4. Anti-backflow device; 41. Floating valve core; 42. Guide column. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0026] Example: Figs. 1-2The utility model provides a kind of modularization microporous membrane piece energy-saving aerator, including detachable membrane module 1, support base 2 with air guide groove, sealing assembly 3;Membrane module 1 includes microporous membrane 11, support frame 12 and flow guide protrusion 13;Support base 2 is equipped with tapered spiral air guide groove 21 and clamping structure 22;Microporous membrane 11 bottom is equipped with equidistant distribution hemispherical flow guide protrusion 13, protrusion height decreases from center to edge;Air guide groove 21 cross section is trapezoidal, slot depth decreases 15-20% along air current direction;Sealing assembly 3 includes elastic sealing ring 31 and limit pressure ring 32, sealing ring is equipped with two-way sealing lip 311;Support base 2 bottom is equipped with anti-backflow device 4, including floating valve core 41 and guide column 42;Clamping structure 22 is rotary locking type, including clamping groove 221 and elastic buckle;Support frame 12 is equipped with module identification mark area 121, adopts concave-convex coding structure.

[0027] With municipal sewage treatment plant upgrading and reconstruction project as an example, the specific implementation of the modularization microporous membrane piece energy-saving aerator of the utility model is described in detail:

[0028] Installation steps

[0029] Install support base: first, support base 2 is fixed on aeration branch pipe according to design requirements. Ensure that the installation position of support base 2 is accurate and correct, and the connection with aeration branch pipe is firm and reliable, to ensure that there is no loosening or displacement in the subsequent operation process.

[0030] Install membrane module: align the elastic buckle of membrane module 1 with the clamping groove on support base 2, and then slowly rotate the membrane module 1. When rotated to the appropriate angle, the elastic buckle will automatically enter the clamping groove, realizing the quick locking of the membrane module 1 and the support base 2. During installation, pay attention to check the sealing condition between the membrane module 1 and the support base 2 to ensure good sealing.

[0031] Install sealing assembly: place the elastic sealing ring 31 at the connection between the membrane module 1 and the support base 2, to ensure that the two-way sealing lip 311 can effectively realize the sealing function. Then, install the limit pressure ring 32, which compresses and positions the elastic sealing ring 31, further enhancing the sealing effect.

[0032] Check anti-backflow device: check the anti-backflow device 4 at the bottom of the support base 2, to ensure that the floating valve core 41 can move up and down freely under the guidance of the guide column 42. In normal working condition, the floating valve core 41 should be in the open position to ensure that the gas can pass smoothly; when the aerator stops working, the floating valve core 41 should be able to automatically close the channel to prevent backflow of sewage.

[0033] Operation process

[0034] In the normal operation process of the sewage treatment plant, compressed air enters the tapered spiral air guide groove 21 of the supporting base 2 through the aeration branch pipe. The air flow forms a spiral flow path in the air guide groove 21, and as the groove depth of the air guide groove 21 gradually decreases, the air flow speed gradually increases. When the air flow reaches the microporous membrane 11, under the action of the flow guide protrusion 13, the gas discharged from the microporous membrane 11 forms a vertical micro-jet, which disperses the gas into the sewage. This special flow field distribution makes the bubble diameter decrease by more than 30%, greatly increases the contact area of the gas and the sewage, and improves the oxygen transfer efficiency. At the same time, the bidirectional sealing system ensures that the gas in the aerator cannot leak, and the sewage cannot enter the aerator, ensuring the normal operation of the aerator.

[0035] Maintenance process

[0036] When the aerator needs to be maintained or the membrane is replaced, it is not necessary to stop the drainage. The operator only needs to reverse the rotation of the membrane module 1 to make the elastic buckle disengage from the card slot, so that the membrane module 1 can be easily taken out. When replacing the new membrane module 1, the operation is performed according to the installation steps. The whole replacement process takes a short time, which is shortened from 4 hours to 15 minutes, greatly improving the maintenance efficiency of the equipment and reducing the influence on the sewage treatment work.

[0037] Through the above specific embodiments, the modular microporous membrane energy-saving aerator of the present application has been successfully applied in the upgrading and reconstruction project of the municipal sewage treatment plant, effectively solving the problems existing in the traditional aerator, improving the sewage treatment efficiency, reducing the operation cost, and providing an efficient and reliable aerator solution for the sewage treatment industry.

[0038] Obviously, those skilled in the art can make various modifications and variations to the present application without departing from the spirit and scope of the present application. Therefore, if these modifications and variations of the present application fall within the scope of the claims of the present application and their equivalents, the present application also intends to include these modifications and variations.

Claims

1. A modular microporous membrane lamination energy saving aerator characterized by: The detachable membrane module (1), the support base (2) with air guide groove, and the sealing assembly are provided.

2. The aerator of claim 1, wherein: The bottom surface of the microporous membrane (11) is provided with equidistantly distributed semispherical flow guide protrusions (13), and the height of the protrusions decreases from the center to the edge.

3. The aerator of claim 1 wherein: The cross section of the air guide groove (21) is trapezoidal, and the groove depth decreases by 15-20% along the air flow direction.

4. The aerator of claim 1 wherein: The sealing assembly (3) comprises an elastic sealing ring (31) and a limiting pressure ring (32), and the sealing ring is provided with bidirectional sealing lips (311).

5. The aerator of claim 1 wherein: The bottom of the support base (2) is provided with an anti-backflow device (4) comprising a floating valve core (41) and a guide column (42).

6. The aerator of claim 1 wherein: The clamping structure (22) is a rotary locking type comprising a clamping groove and an elastic buckle.

7. The aerator of claim 1 wherein: The support frame (12) is provided with a module identification mark area (121) adopting a concave-convex coding structure.

Images