Precise intelligent oxidation aeration energy-saving device

Abstract

The application discloses a precise intelligent oxidation aeration energy-saving device, which comprises a blower, an air diffusing device, an aeration area, a water quality on-line monitoring instrument or an oxygen content instrument, an intelligent control system and a related data and remote maintenance system, the aeration area is arranged on the side of the blower, the air diffusing device is used for connecting the blower and the aeration area, the aeration area is internally provided with an aeration moving structure and a plurality of aeration diffusion structures which are communicated with the air diffusing device, and the plurality of aeration diffusion structures are equidistantly arranged on the aeration moving structure. The blower is designed with a variable frequency motor to control the aeration amount, so that the energy consumption of a sewage treatment plant / desulfurization oxidation system is reduced, the device is standardized and modularized in design and production, stable in performance and good in environmental and economic benefits; through an advanced neural network model and intelligent control technology, the aeration amount can be accurately and intelligently adjusted in real time, and the device is convenient for remote maintenance and efficient operation.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of aeration technology, in particular to a precise intelligent oxidation aeration energy-saving device. BACKGROUND

[0002] The energy consumption of sewage treatment plants and desulfurization oxidation systems in China is mainly electricity consumption, and the energy consumption of air blowing aeration accounts for about 51% of the total energy consumption in sewage plants. Based on the construction of sewage treatment plants, there is a huge space for improving the effluent quality and reducing energy and material consumption through the optimization of existing facilities. At present, under the background of the state's vigorous promotion of energy saving and consumption reduction, the energy saving and consumption reduction of sewage treatment plants is of great significance. According to the survey, about half of the sewage treatment plants in China use oxidation ditch and AAO process, and more and more AAO modified processes show an upward trend. Therefore, the research on the energy consumption and energy efficiency of the aeration system always involves the modification and innovation of the aeration equipment, and the energy-saving operation of the aeration system is the key to the energy saving of the sewage plant. Excessive aeration directly causes waste of electric energy, and dissolved oxygen is taken to the anoxic zone by internal reflux, affecting the denitrification effect, and dissolved oxygen is taken to the anaerobic zone by external reflux, affecting the anaerobic phosphorus release process. Insufficient aeration affects the microbial activity in the biochemical tank, which may affect the effluent quality. It may also cause denitrification in the secondary sedimentation tank, sludge floating, and affect the effluent.

[0003] In addition, the current SO2 removal technology in thermal power plants generally adopts the limestone-gypsum wet flue gas desulfurization process, and the desulfurization process is divided into four stages of absorption, neutralization, oxidation and crystallization. Only the oxidation stage has no measurement and control means, resulting in no effective measurement of the oxidation index of the slurry in the oxidation stage and no reliable basis for adjusting the oxidation air volume. The monitoring of the entire oxidation stage is out of control, which affects the desulfurization effect of the waste gas and affects the subsequent emission of the waste gas.

[0004] Therefore, it is necessary to provide a precise intelligent oxidation aeration energy-saving device for use. SUMMARY

[0005] The present application relates to the field of aeration technology, in particular to a precise intelligent oxidation aeration energy-saving device.

[0006] To achieve the above-mentioned purpose, the present application provides the following technical scheme:

[0007] The application discloses a precise intelligent oxidation aeration energy-saving device, which comprises an air blower, an air diffusing device, an aeration area, an online water quality monitor or an oxygen content meter, an intelligent control system and a related data and remote maintenance system, the aeration area is arranged beside the air blower, the air diffusing device is used for connecting the air blower and the aeration area, the online water quality monitor or the oxygen content meter is arranged on the aeration area and electrically connected with the intelligent control system, the air blower is electrically connected with the intelligent control system, the related data and remote maintenance system is electrically connected with the intelligent control system, the aeration area is internally provided with an aeration moving structure and a plurality of aeration diffusion structures which are connected with the air diffusing device, and the plurality of aeration diffusion structures are equidistantly arranged on the aeration moving structure.

[0008] Further, the air diffusing device comprises a conveying pipe, a pressure sensor, an electric valve and branch pipes, one end of the conveying pipe is connected with the air blower, the other end of the conveying pipe extends into the aeration area (3), the pressure sensor and the electric valve are respectively connected with the conveying pipe, and the branch pipes are connected with the conveying pipe.

[0009] Further, the air blower is internally provided with a variable frequency motor.

[0010] Further, the aeration moving structure comprises a moving frame plate, two moving motors and two moving lead screws, the two moving motors are symmetrically arranged at the top of the aeration area, the two moving lead screws are respectively in transmission connection with the two moving motors, the moving lead screws are vertically rotatably connected in the aeration area, and the two ends of the moving frame plate are respectively in threaded connection with the two moving lead screws.

[0011] Further, the plurality of aeration diffusion structures are respectively connected with the plurality of branch pipes, each aeration diffusion structure comprises an aeration rotating piece and an aeration adjusting piece, the aeration adjusting piece is rotatably connected with the aeration rotating piece, and the aeration rotating piece can drive the aeration adjusting piece to rotate.

[0012] Further, the aeration rotating piece comprises a rotating base arranged on the moving frame plate, a rotating cylinder arranged on the rotating base, a rotating ring arranged on the rotating cylinder, and a rotating motor arranged in the rotating base and in transmission connection with the rotating cylinder.

[0013] Further technical solutions, the aeration adjusting part includes an adjusting motor, a rotating shaft and three adjusting shafts, the adjusting motor is located in the rotating cylinder, the rotating shaft is vertically connected to the main shaft of the adjusting motor, the three adjusting shafts are circumferentially and equidistantly rotationally connected to the rotating cylinder, the adjusting shafts are horizontally arranged, the rotating shaft is provided with a main bevel gear, one end of each of the adjusting shafts is provided with a slave bevel gear in transmission connection with the main bevel gear, the other end of the adjusting shaft is provided with an aeration diffuser, and the aeration diffuser is in communication with the branch pipe.

[0014] Further technical solutions, the aeration area is respectively provided with an inlet and an outlet.

[0015] The beneficial effects of the present application are as follows:

[0016] The present application can reduce the energy consumption of the sewage treatment plant / desulfurization oxidation system by designing a frequency conversion motor for the air blower to control the aeration amount, and the energy consumption is reduced, the standardization modular design and production are adopted, the performance is stable, and the environmental benefits and economic benefits are good; the intelligent control system receives water quality online monitoring / oxygen content instrument data, and through an advanced neural network model and intelligent control technology, the aeration amount can be accurately and intelligently adjusted in real time, remote maintenance is facilitated, and the purpose of precise intelligent oxidation aeration energy saving is achieved; the whole application adopts the standardization modular design and production, the performance is stable, the environmental benefits and economic benefits are good, and is suitable for being widely promoted and used.

[0017] Other features and advantages of the present application will be described in detail in the following specific embodiments. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 : Process flow chart of the precise intelligent oxidation aeration device of the present application.

[0019] Figure 2 : Equipment flow chart of the precise intelligent oxidation aeration device of the present application.

[0020] Figure 3 : The three-dimensional structure schematic diagram of the aeration area in the present application.

[0021] Figure 4 : Side view of the aeration area of the present application.

[0022] Figure 5 : Top view of the aeration area of the present application.

[0023] Figure 6 : Figure 5 Sectional view along line A-A.

[0024] Figure 7 : The three-dimensional structure schematic diagram of the aeration moving structure in the present application.

[0025] Figure 8The three-dimensional structure split view of the aeration diffusion structure in the application.

[0026] The figure mark: air blower 1, variable frequency motor 10, import 11, export 12, air diffusion device 2, conveying pipe 20, pressure sensor 21, electric valve 22, branch pipe 23, aeration area 3, water quality on-line monitoring instrument or oxygen content instrument 4, intelligent control system 5, associated data and remote maintenance system 6, aeration moving structure 7, moving frame plate 70, moving motor 71, moving screw rod 72, aeration diffusion structure 8, rotating base 80, rotating cylinder 81, rotating ring 82, rotating motor 83, adjusting motor 84, rotating shaft 85, adjusting shaft 86, main bevel gear 87, from bevel gear 88, aeration diffuser 89. DETAILED DESCRIPTION

[0027] The technical solutions in the embodiments of the application will be apparently and completely described below with reference to the drawings in the embodiments of the application.

[0028] Please refer to Figures 1-8 The figure mark: air blower 1, variable frequency motor 10, import 11, export 12, air diffusion device 2, conveying pipe 20, pressure sensor 21, electric valve 22, branch pipe 23, aeration area 3, water quality on-line monitoring instrument or oxygen content instrument 4, intelligent control system 5, associated data and remote maintenance system 6, aeration moving structure 7, moving frame plate 70, moving motor 71, moving screw rod 72, aeration diffusion structure 8, rotating base 80, rotating cylinder 81, rotating ring 82, rotating motor 83, adjusting motor 84, rotating shaft 85, adjusting shaft 86, main bevel gear 87, from bevel gear 88, aeration diffuser 89.

[0029] The water quality on-line monitoring instrument can monitor the content of dissolved oxygen in the aeration area 3, and the oxygen content instrument can monitor the oxygen content in the wastewater or waste gas in the aeration area 3; the intelligent control system 5 receives the dissolved oxygen / oxygen content data of the water quality on-line monitoring instrument or oxygen content instrument 4, and performs data linkage with the associated data and remote maintenance system 6.

[0030] The application can treat wastewater, and oxidation aeration is a key link in the activated sludge method for treating domestic wastewater; in the aeration area 3, air or oxygen is filled into the wastewater through the aeration equipment, so that the microorganisms in the activated sludge can fully contact oxygen; these microorganisms can decompose organic pollutants in the wastewater, such as carbohydrates, proteins and oils, etc.

[0031] The pollution desulfurization in the exhaust gas can also be treated, and oxygen aeration can play an oxidation role. For example, in the forced oxidation link in the wet flue gas desulfurization technology, oxygen can oxidize sulfite into sulfate. Taking the limestone-gypsum method as an example, in the absorption tower, sulfur dioxide reacts with limestone slurry to generate calcium sulfite, and then air is blown into the absorption liquid through aeration or the like to provide oxygen, so that the calcium sulfite is oxidized into calcium sulfate, and the calcium sulfate can be crystallized to form gypsum, which is convenient for subsequent separation and treatment, and the gypsum can also be used in the field of building materials.

[0032] In the embodiment, referring to Figure 2 , the air diffuser 2 comprises a conveying pipe 20, a pressure sensor 21, an electric valve 22 and branch pipes 23, one end of the conveying pipe 20 is connected to the air blower 1, the other end of the conveying pipe 20 extends into the aeration area 3, the pressure sensor 21 and the electric valve 22 are respectively connected to the conveying pipe 20, and the branch pipes 23 are provided in plurality and are in communication with the conveying pipe 20.

[0033] It should be noted that the branch pipes 23 are corrugated and can move in position along with the angle movement of the aeration diffuser 89.

[0034] In use, the air blower 1 works to convey gas into the branch pipes 23 through the conveying pipe 20, the branch pipes 23 then convey the gas to the aeration diffuser 89 to perform aeration work in the aeration area 3, the pressure sensor 21 can monitor the pressure of the gas conveyed in the conveying pipe 20, and the electric valve 22 can adjust the flow rate of the conveyed gas, so as to accurately control the flow of the gas.

[0035] In the embodiment, referring to Figure 2 , a variable frequency motor 10 is arranged in the air blower 1. The variable frequency motor 10 is designed in the air blower 1 to control the aeration amount and reduce the energy consumption of the wastewater treatment plant / desulfurization oxidation system

[0036] In the embodiment, referring to Figure 7 , the aeration moving structure 7 comprises a moving frame plate 70, two moving motors 71 and two moving lead screws 72, the two moving motors 71 are symmetrically arranged at the top of the aeration area 3, the two moving lead screws 72 are respectively in transmission connection with the two moving motors 71, the moving lead screws 72 are vertically rotatably connected in the aeration area 3, and the two ends of the moving frame plate 70 are respectively in threaded connection with the two moving lead screws 72.

[0037] When aeration is performed, the two moving motors 71 work simultaneously to drive the two moving lead screws 72 to rotate, thereby driving the position of the moving frame plate 70 to move in the vertical direction of the aeration area 3, so as to perform aeration work at different positions in the aeration area 3, and the aeration work is more uniform and the effect is better.

[0038] It should be noted that the aeration area 3 can be an aeration tank used for aeration of wastewater, or an aeration tank used for aeration of waste gas.

[0039] In the embodiment, referring to Figure 8 The aeration diffusion structure 8 is connected with the branch pipe 23, and includes an aeration rotating part and an aeration adjusting part. The aeration adjusting part is rotatably connected to the aeration rotating part, and the aeration rotating part can drive the aeration adjusting part to rotate.

[0040] In the embodiment, the aeration rotating part includes a rotating base 80 arranged on the moving frame plate 70, a rotating cylinder 81 arranged on the rotating base 80, a rotating ring 82 arranged on the rotating cylinder 81, and a rotating motor 83 arranged in the rotating base 80 and drivingly connected to the rotating cylinder 81. The aeration adjusting part includes an adjusting motor 84, a rotating shaft 85, and three adjusting shafts 86. The adjusting motor 84 is arranged in the rotating cylinder 81. The rotating shaft 85 is vertically connected to the main shaft of the adjusting motor 84. The three adjusting shafts 86 are circumferentially and equidistantly rotatably connected to the rotating cylinder 81. The adjusting shafts 86 are horizontally arranged. The rotating shaft 85 is provided with a main bevel gear 87. Each of the adjusting shafts 86 is provided with a slave bevel gear 88 at one end and an aeration diffuser 89 at the other end. The aeration diffuser 89 is connected to the branch pipe 23.

[0041] When the angle of aeration is adjusted, the rotating motor 83 drives the rotating cylinder 81 to rotate on the rotating base 80 through the rotating ring 82, thereby driving the three aeration diffusers 89 to rotate, so as to change the angle position of the aeration diffuser 89. Then, the adjusting motor 84 drives the rotating shaft 85 to rotate, thereby driving the main bevel gear 87 to rotate, and the main bevel gear 87 drives the three slave bevel gears 88 to rotate on the rotating cylinder 81 through the three adjusting shafts 86, respectively, thereby driving the three aeration diffusers 89 to rotate and change the angle, respectively.

[0042] The angle position of the aeration diffuser 89 is changed and rotated, which has the following advantages:

[0043] Increased coverage: When the aeration angle is changed, the trajectory of the bubbles changes accordingly. For example, adjusting the aeration device from vertical aeration to inclined aeration at an angle, the bubbles can have a certain displacement in the horizontal direction during their ascent. For large aeration areas 3, especially rectangular or irregularly shaped aeration areas 3, this inclined aeration can make the bubbles cover a wider area. Just like in a rectangular pond, vertical aeration can cause bubbles to concentrate in the area directly above the aerator, while inclined aeration can allow bubbles to reach the corners and edges of the pond, reducing dead zones and making oxygen distribution more uniform throughout the water body.

[0044] Enhanced mixing of different water layers: Reasonable aeration angles can help promote oxygen exchange and mixing between water layers of different depths. For example, using stratified aeration combined with different aeration angles, a smaller angle close to horizontal is used at the bottom layer, allowing bubbles to move horizontally for a long distance before rising, thus better delivering oxygen to deep water. At the same time, using aeration with appropriate inclination angles in the middle and upper layers, the bubbles produce lateral stirring effect during their ascent, strengthening the convection between different water layers, allowing oxygen to be more evenly distributed in each water layer, which is beneficial to improve the dissolved oxygen level of the entire water body.

[0045] Increased contact area and time: By adjusting the aeration angle, the path of the bubbles in the water becomes longer, and the contact time with the liquid increases accordingly. For example, when bubbles rise at an angle, they stay in the water longer than when they rise vertically. Moreover, during the inclined ascent of the bubbles, due to the change in direction of motion, they constantly produce new contact interfaces with the surrounding liquid, thereby increasing the gas-liquid contact area. It's like throwing a stone into the water vertically and at an angle. When thrown at an angle, the stone travels a longer path in the water, and the contact area and time with the water are also greater. During aeration, a larger gas-liquid contact area and time help improve the transfer efficiency of oxygen from the gas phase to the liquid phase.

[0046] Improved bubble dispersion: Proper aeration angles can prevent bubbles from clustering, making them more evenly dispersed. When bubbles rise vertically, they tend to move closer to each other due to buoyancy, merging into large bubbles. Changing the aeration angle, the horizontal component of the force can make them move away from each other, maintaining a smaller size. Small bubbles have a larger specific surface area, allowing them to transfer oxygen to the water more effectively. For example, in wastewater treatment, small bubbles with a diameter of 1 mm have a gas-liquid contact area about 5 times that of large bubbles with a diameter of 5 mm, which is crucial for improving aeration efficiency.

[0047] In the embodiment, the aeration area 3 is respectively provided with an inlet 11 and an outlet 12; during the aeration process, sewage or waste gas can be transported into the aeration area 3 through the inlet 11, and after the aeration work is completed, the waste water and waste gas can be discharged through the outlet 12.

[0048] It is apparent for a person skilled in the art that the present application is not limited to the details of the above exemplary embodiments, but can be implemented in other concrete forms without departing from the spirit or essential characteristics of the present application. Therefore, the embodiments should be considered in all respects as illustrative and not restrictive, the scope of the present application being defined by the appended claims rather than that of the above description, and it is therefore intended that all changes and modifications that come within the meaning and range of equivalency of the claims are to be embraced by the application. Any reference signs in the claims should not be construed as limiting the claims to the figures in which the reference signs are used.

[0049] The above description is merely preferred embodiments of the present application, and not intended to limit the present application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A precise intelligent oxidation aeration energy-saving device, characterized by: It comprises a blower (1), an air diffuser (2), an aeration area (3), an online water quality monitor or oxygen content meter (4), an intelligent control system (5) and a related data and remote maintenance system (6). The aeration area (3) is arranged beside the blower (1), and the air diffuser (2) is used to connect the blower (1) and the aeration area (3). The online water quality monitor or oxygen content meter (4) is arranged on the aeration area (3) and electrically connected with the intelligent control system (5), the blower (1) is electrically connected with the intelligent control system (5), and the related data and remote maintenance system (6) is electrically connected with the intelligent control system (5). The aeration area (3) is internally provided with an aeration moving structure (7) and a plurality of aeration diffusion structures (8) which are in communication with the air diffuser (2), and the aeration diffusion structures (8) are equidistantly arranged on the aeration moving structure (7). The air diffuser (2) comprises a conveying pipe (20), a pressure sensor (21), an electric valve (22) and branch pipes (23), one end of the conveying pipe (20) is connected with the blower (1), the other end of the conveying pipe (20) extends into the aeration area (3), the pressure sensor (21) and the electric valve (22) are respectively connected with the conveying pipe (20), and the branch pipes (23) are in communication with the conveying pipe (20). The aeration diffusion structures (8) are in communication with the branch pipes (23), each aeration diffusion structure (8) comprises an aeration rotating part and an aeration adjusting part, the aeration adjusting part is rotationally connected with the aeration rotating part, and the aeration rotating part can drive the aeration adjusting part to rotate. The aeration rotating part comprises a rotating base (80) arranged on a moving frame plate (70), the rotating base (80) is internally provided with a rotating cylinder (81), the rotating cylinder (81) is externally provided with a rotating ring (82), the rotating cylinder (81) is rotationally connected with the rotating base (80) through the rotating ring (82), and the rotating base (80) is internally provided with a rotating motor (83) which is in transmission connection with the rotating cylinder (81). The aeration adjusting part comprises an adjusting motor (84), a rotating shaft (85) and three adjusting shafts (86), the adjusting motor (84) is arranged in the rotating cylinder (81), the rotating shaft (85) is vertically connected with a main shaft of the adjusting motor (84), the three adjusting shafts (86) are circumferentially and equidistantly rotationally connected with the rotating cylinder (81), the adjusting shafts (86) are horizontally arranged, the rotating shaft (85) is externally provided with a main bevel gear (87), one end of each adjusting shaft (86) is externally provided with a slave bevel gear (88) which is in transmission connection with the main bevel gear (87), and the other end of each adjusting shaft (86) is externally provided with an aeration diffuser (89) which is in communication with the branch pipe (23).

2. The precise intelligent oxidation aeration energy-saving device according to claim 1, characterized in that: The blower (1) is internally provided with a variable frequency motor (10).

3. The precise intelligent oxidation aeration energy-saving device according to claim 1, characterized in that: The aeration moving structure (7) comprises a moving frame plate (70), two moving motors (71) and two moving lead screws (72), the two moving motors (71) are symmetrically arranged at the top of the aeration area (3), the two moving lead screws (72) are respectively in transmission connection with the two moving motors (71), the moving lead screw (72) is vertically rotatably connected in the aeration area (3), and the two ends of the moving frame plate (70) are respectively in threaded connection with the two moving lead screws (72).

4. The precise intelligent oxidation aeration energy-saving device according to claim 1, characterized in that: The aeration area (3) is respectively provided with an inlet (11) and an outlet (12).

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