Precise intelligent oxidation aeration energy-saving device

Abstract

The invention discloses a precise intelligent oxidation aeration energy-saving device which comprises an air blower, an air diffusion device, an aeration area, a water quality online monitor or oxygen content meter, an intelligent control system and an associated data and remote maintenance system, the aeration area is arranged beside the air blower, the air diffusion device is used for connecting the air blower and the aeration area, and the air diffusion device is used for connecting the air blower and the aeration area. An aeration moving structure and a plurality of aeration diffusion structures communicated with the air diffusion device are arranged in the aeration area, and the plurality of aeration diffusion structures are arranged on the aeration moving structure at equal intervals. The variable frequency motor is designed through the air blower, so that the aeration rate is controlled in an energy-saving manner, the energy consumption of a sewage treatment plant / desulfurization oxidation system is reduced, standardized modular design and production are achieved, the performance is stable, and good environmental benefits and economic benefits are achieved; through an advanced neural network model and an intelligent control technology, the aeration rate can be accurately and intelligently adjusted in real time, remote maintenance is facilitated, and efficient operation is achieved.

Description

Technical Field

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

[0002] The energy consumption of sewage treatment plants and desulfurization oxidation systems in my country is mainly electricity consumption, among which the energy consumption of aeration accounts for about 51% of the total energy consumption in sewage treatment plants. On the basis of sewage treatment plant construction, there is a huge space to improve the effluent quality and reduce energy and material consumption through the optimization operation of existing facilities. At present, with the background of the country vigorously advocating energy conservation and consumption reduction, energy conservation and consumption reduction in sewage treatment plants are of great significance. According to the survey, about half of the sewage treatment plants in the country use oxidation ditch and AAO process, and more and more AAO deformation processes are showing an upward trend. Therefore, the study of energy consumption and energy efficiency of aeration systems always involves the transformation and innovation of aeration equipment. Realizing energy-saving operation of aeration systems is the key to energy conservation in sewage treatment plants. Excessive aeration directly causes waste of electricity, and dissolved oxygen is brought to the anoxic zone through internal recirculation, affecting the effect of denitrification, and dissolved oxygen is brought to the anaerobic zone through external recirculation, affecting the process of anaerobic phosphorus release. Insufficient aeration affects the activity of microorganisms in the biochemical pool and 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. The desulfurization process is divided into four stages: absorption, neutralization, oxidation and crystallization. Only the oxidation stage has no measurement and control means, resulting in no effective measurement of the slurry oxidation index 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, resulting in poor desulfurization effect in the exhaust gas and affecting the subsequent exhaust gas emissions.

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

[0005] The purpose of the present invention is to provide a precise intelligent oxidation aeration energy-saving device to solve the problems raised in the above background technology.

[0006] To achieve the above object, the present invention provides the following technical solutions:

[0007] A precise intelligent oxidation aeration energy-saving device comprises a blower, an air diffusion device, an aeration area, an online water quality monitor or an oxygen content meter, an intelligent control system, associated data and a remote maintenance system, wherein the aeration area is arranged beside the blower, the air diffusion device is used to connect the blower and the aeration area, the online water quality monitor or the oxygen content meter is located in the aeration area and is electrically connected to the intelligent control system, the blower is electrically connected to the intelligent control system, the associated data and the remote maintenance system are electrically connected to the intelligent control system, an aeration mobile structure and a plurality of aeration diffusion structures connected to the air diffusion device are provided in the aeration area, and the plurality of aeration diffusion structures are arranged on the aeration mobile structure at equal intervals.

[0008] According to a further technical solution, the air diffusion device comprises a delivery pipe, a pressure sensor, an electric valve and a branch pipe, one end of the delivery pipe is connected to the blower, and the other end of the delivery pipe extends into the aeration area (3), the pressure sensor and the electric valve are respectively connected to the delivery pipe, and a plurality of branch pipes are provided and are connected to the delivery pipe.

[0009] According to a further technical solution, a variable frequency motor is provided inside the blower.

[0010] A further technical solution is that the aeration moving structure includes a moving frame, two moving motors and two moving screws. The two moving motors are symmetrically arranged at the top of the aeration area. The two moving screws are respectively connected to the two moving motors in a transmission manner. The moving screws are vertically rotatably connected in the aeration area, and the two ends of the moving frame are respectively threadedly connected to the two moving screws.

[0011] According to a further technical solution, a plurality of aeration diffusion structures are respectively connected to a plurality of branch pipes; each of the aeration diffusion structures comprises an aeration rotating member and an aeration adjusting member, the aeration adjusting member is rotatably connected to the aeration rotating member, and the aeration rotating member can drive the aeration adjusting member to rotate.

[0012] According to a further technical solution, the aeration rotating member comprises a rotating base arranged on a movable frame plate, a rotating drum is provided on the rotating base, a rotating ring is provided on the rotating drum, the rotating drum is rotatably connected to the rotating base via the rotating ring, and a rotating motor is provided in the rotating base which is transmission-connected to the rotating drum.

[0013] A further technical solution is that the aeration adjustment member includes an adjustment motor, a rotating shaft and three adjustment shafts, the adjustment motor is located in the rotating cylinder, the rotating shaft is vertically connected to the main shaft of the adjustment motor, the three adjustment shafts are rotatably connected to the rotating cylinder at equal intervals, the adjustment shaft is horizontally arranged, a main bevel gear is provided on the rotating shaft, one end of each of the adjustment shafts is provided with a slave bevel gear transmission-connected to the main bevel gear, an aeration diffuser is provided on the other end of the adjustment shaft, and the aeration diffuser is communicated with the branch pipe.

[0014] According to a further technical solution, an inlet and an outlet are respectively provided on the aeration area.

[0015] Beneficial effects of the present invention:

[0016] The present invention controls the aeration volume by designing a variable frequency motor for the blower to save energy, thereby reducing the energy consumption of the sewage treatment plant / desulfurization oxidation system. It has standardized modular design and production, stable performance, and good environmental and economic benefits. The intelligent control system receives water quality online monitoring / oxygen content meter data, and through advanced neural network models and intelligent control technology, it can accurately and intelligently adjust the aeration volume in real time, facilitate remote maintenance, and achieve the purpose of accurate intelligent oxidation aeration energy saving. The entire application has standardized modular design and production, stable performance, and good environmental and economic benefits, and is suitable for wide promotion and use.

[0017] Other features and advantages of the present invention will be described in detail in the following detailed description. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 : This is a process flow chart of a practical, precise and intelligent oxidation aeration device.

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

[0020] Figure 3 : Schematic diagram of the three-dimensional structure of the aeration area in the present invention.

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

[0022] Figure 5 : A top view of the aeration area of ​​the present invention.

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

[0024] Figure 7 : Schematic diagram of the three-dimensional structure of the aeration mobile structure in the present invention.

[0025] Figure 8: A three-dimensional structural breakdown diagram of the aeration diffusion structure in the present invention.

[0026] Figure numerals: blower 1, variable frequency motor 10, inlet 11, outlet 12, air diffusion device 2, delivery pipe 20, pressure sensor 21, electric valve 22, branch pipe 23, aeration area 3, online water quality monitor or oxygen content meter 4, intelligent control system 5, associated data and remote maintenance system 6, aeration mobile structure 7, mobile frame plate 70, mobile motor 71, mobile screw 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, slave bevel gear 88, aeration diffuser 89. DETAILED DESCRIPTION

[0027] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0028] Please refer to Figure 1-8 As shown; the present invention provides a technical solution for a precise intelligent oxidation aeration energy-saving device: a precise intelligent oxidation aeration energy-saving device, comprising a blower 1, an air diffusion device 2, an aeration area 3, an online water quality monitor or an oxygen content meter 4, an intelligent control system 5 and an associated data and remote maintenance system 6, wherein the aeration area 3 is arranged beside the blower 1, the air diffusion device 2 is used to connect the blower 1 and the aeration area 3, the online water quality monitor or the oxygen content meter 4 is located on the aeration area 3 and is electrically connected to the intelligent control system 5, the blower 1 is electrically connected to the intelligent control system 5, the associated data and remote maintenance system 6 is electrically connected to the intelligent control system 5, an aeration moving structure 7 and a plurality of aeration diffusion structures 8 connected to the air diffusion device 2 are provided in the aeration area 3, and a plurality of aeration diffusion structures 8 are arranged on the aeration moving structure 7 at equal intervals.

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

[0030] In the present invention, wastewater can be treated, and oxidation aeration is the key link in the treatment of domestic sewage by the activated sludge method; in the aeration area 3, air or oxygen is filled into the sewage through the aeration equipment, so that the microorganisms in the activated sludge can fully contact with oxygen. These microorganisms can decompose organic pollutants in the sewage, such as carbohydrates, proteins and oils, in an aerobic environment.

[0031] It can also treat the pollution desulfurization in the exhaust gas, and oxygen aeration can play an oxidizing role. For example, in the forced oxidation link of 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 form calcium sulfite, and then air is blown into the absorption liquid through aeration and other methods to provide oxygen, so that calcium sulfite is oxidized into calcium sulfate. Calcium sulfate can crystallize to form gypsum, which is convenient for subsequent separation and treatment. This gypsum can also be used in building materials and other fields.

[0032] In this embodiment, refer to Figure 2 As shown, the air diffusion device 2 includes a delivery pipe 20, a pressure sensor 21, an electric valve 22 and a branch pipe 23. One end of the delivery pipe 20 is connected to the blower 1, and the other end of the delivery pipe 20 extends into the aeration area 3. The pressure sensor 21 and the electric valve 22 are respectively connected to the delivery pipe 20. A plurality of branch pipes 23 are provided and are connected to the delivery pipe 20.

[0033] It should be noted that the branch pipe 23 is corrugated and can move in position as the aeration diffuser 89 moves in angle.

[0034] When in use, the blower 1 works to transport the gas through the delivery pipe 20 to the branch pipe 23, and the branch pipe 23 then transports 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 transported gas in the delivery pipe 20, and the electric valve 22 can adjust the flow rate of the transported gas, so as to accurately control the flow rate of the gas.

[0035] In this embodiment, refer to Figure 2 As shown, the blower 1 is provided with a variable frequency motor 10. By designing the variable frequency motor 10 in the blower 1, the aeration volume can be controlled to reduce the energy consumption of the sewage treatment plant / desulfurization oxidation system.

[0036] In this embodiment, refer to Figure 7 As shown, the aeration moving structure 7 includes a moving frame plate 70, two moving motors 71 and two moving screw rods 72. The two moving motors 71 are symmetrically arranged on the top of the aeration area 3. The two moving screw rods 72 are respectively connected to the two moving motors 71 by transmission. The moving screw rods 72 are vertically rotatably connected in the aeration area 3. The two ends of the moving frame plate 70 are respectively threadedly connected to the two moving screw rods 72.

[0037] When aeration is performed, the two movable motors 71 can work simultaneously to drive the two movable screw rods 72 to rotate respectively, thereby driving the position of the movable frame plate 70 to move in the vertical direction of the aeration area 3. Aeration work can be performed at different positions in the aeration area 3, making the aeration work more uniform and effective.

[0038] It should be noted that the aeration area 3 may be an aeration tank for aerating wastewater, or an aeration box for aerating waste gas.

[0039] In this embodiment, refer to Figure 8 As shown, a plurality of aeration diffusion structures 8 are respectively connected to a plurality of branch pipes 23; each of the aeration diffusion structures 8 includes an aeration rotating member and an aeration adjusting member, the aeration adjusting member is rotatably connected to the aeration rotating member, and the aeration rotating member can drive the aeration adjusting member to rotate.

[0040] In this embodiment, the aeration rotating member includes a rotating base 80 arranged on the movable frame plate 70, the rotating base 80 is provided with a rotating cylinder 81, the rotating cylinder 81 is provided with a rotating ring 82, the rotating cylinder 81 is rotatably connected to the rotating base 80 through the rotating ring 82, and a rotating motor 83 is provided in the rotating base 80 that is transmission-connected to the rotating cylinder 81; the aeration adjusting member includes an adjusting motor 84, a rotating shaft 85 and three adjusting shafts 86, the adjusting motor 84 is located 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 rotationally connected to the rotating cylinder 81 at equal intervals around the circumference, the adjusting shafts 86 are horizontally arranged, a main bevel gear 87 is provided on the rotating shaft 85, and one end of each of the adjusting shafts 86 is provided with a slave bevel gear 88 transmission-connected to the main bevel gear 87, and an aeration diffuser 89 is provided on the other end of the adjusting shaft 86, and the aeration diffuser 89 is connected to the branch pipe 23.

[0041] When adjusting the aeration angle, the rotating motor 83 can drive 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, thereby changing the angle position of the aeration diffusers 89, and then the adjusting motor 84 drives the rotating shaft 85 to rotate, which will drive the main bevel gear 87 to rotate, and the main bevel gear 87 will drive the three slave bevel gears 88 to rotate and rotate on the rotating cylinder 81 through the three adjusting shafts 86, and the rotation of the three adjusting shafts 86 will respectively drive the angles of the three aeration diffusers 89 to rotate and change.

[0042] Changing and rotating the angular position of the aeration diffuser 89 has the following benefits:

[0043] Expanded coverage: When the aeration angle changes, the trajectory of the bubbles changes accordingly. For example, by adjusting the aeration device from vertical aeration to inclined aeration at a certain angle, the bubbles can have a certain displacement in the horizontal direction during the rising process. For large aeration areas 3, especially rectangular or irregularly shaped aeration areas 3, this inclined aeration can allow the bubbles to cover a wider area. Just like in a rectangular pond, vertical aeration may cause the bubbles to concentrate in the area directly above the aerator, while inclined aeration allows the bubbles to reach the corners and edges of the pond, reducing aeration dead corners and making the oxygen more evenly distributed throughout the water body.

[0044] Enhance the mixing of different water layers: A reasonable aeration angle helps promote oxygen exchange and mixing between water layers at different depths. For example, by using layered aeration combined with aeration methods at different angles, a smaller angle close to horizontal aeration is used at the bottom layer, which can make the bubbles move horizontally for a long distance in the bottom water body before rising, thereby better transporting oxygen to the deep water body. At the same time, aeration at an appropriate tilt angle is used in the middle and upper layers, so that the bubbles produce a lateral stirring effect during the rising process, which strengthens the convection between different water layers, allowing oxygen to be more evenly distributed in each water layer, which is conducive to improving the dissolved oxygen level of the entire water body.

[0045] Increase contact area and time: By adjusting the aeration angle, the movement path of the bubbles in the water becomes longer, and the contact time with the liquid will increase accordingly. For example, when the bubbles rise at a certain tilt angle, they will stay in the water longer than when they rise vertically. Moreover, during the process of the bubbles rising at an angle, due to the change in the direction of movement, new contact interfaces will be continuously generated with the surrounding liquid, thereby increasing the gas-liquid contact area. This is like throwing a stone vertically into the water and throwing it in at a certain angle. When thrown in at a certain angle, the stone will take a longer path in the water, and the contact area and time with the water will also be longer. During the aeration process, a larger gas-liquid contact area and time help to improve the efficiency of oxygen transfer from the gas phase to the liquid phase.

[0046] Improve the dispersion of bubbles: A suitable aeration angle can prevent bubbles from agglomerating and make them dispersed more evenly. When bubbles rise vertically, they tend to approach each other and merge into large bubbles due to buoyancy. After changing the aeration angle, the horizontal force of the bubbles can keep them away from each other and keep their size small. Small bubbles have a larger specific surface area and can transfer oxygen to the water more effectively. For example, in sewage treatment, the gas-liquid contact area of ​​a small bubble with a diameter of 1mm is about 5 times that of a large bubble with a diameter of 5mm, which is very critical to improving the aeration effect.

[0047] In this embodiment, the aeration area 3 is provided with an inlet 11 and an outlet 12 respectively; 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 to the outside through the outlet 12.

[0048] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

[0049] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, 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. A precise intelligent oxidation aeration energy-saving device, characterized by: It includes a blower (1), an air diffusion device (2), an aeration area (3), an online water quality monitor or an 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 diffusion device (2) is used to connect the blower (1) and the aeration area (3); The water quality online monitoring instrument or oxygen content meter (4) is located on the aeration area (3) and is electrically connected to the intelligent control system (5), the blower (1) is electrically connected to the intelligent control system (5), and the associated data and remote maintenance system (6) is electrically connected to the intelligent control system (5); An aeration moving structure (7) and a plurality of aeration diffusion structures (8) connected to the air diffusion device (2) are provided in the aeration area (3); the plurality of aeration diffusion structures (8) are arranged at equal intervals on the aeration moving structure (7).

2. According to claim 1, a precise intelligent oxidation aeration energy-saving device is characterized in that: The air diffusion device (2) comprises a delivery pipe (20), a pressure sensor (21), an electric valve (22) and a branch pipe (23); one end of the delivery pipe (20) is connected to the blower (1); the other end of the delivery pipe (20) extends into the aeration area (3); the pressure sensor (21) and the electric valve (22) are respectively connected to the delivery pipe (20); and a plurality of branch pipes (23) are provided and are in communication with the delivery pipe (20).

3. According to claim 1, a precise intelligent oxidation aeration energy-saving device is characterized in that: A variable frequency motor (10) is provided inside the blower (1).

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

5. According to claim 4, a precise intelligent oxidation aeration energy-saving device is characterized in that: A plurality of aeration diffusion structures (8) are respectively connected to a plurality of branch pipes (23); each of the aeration diffusion structures (8) comprises an aeration rotating member and an aeration adjusting member, the aeration adjusting member is rotatably connected to the aeration rotating member, and the aeration rotating member can drive the aeration adjusting member to rotate.

6. According to claim 5, a precise intelligent oxidation aeration energy-saving device is characterized in that: The aeration rotating member comprises a rotating base (80) arranged on a movable frame plate (70); a rotating cylinder (81) is arranged on the rotating base (80); a rotating ring (82) is arranged on the rotating cylinder (81); the rotating cylinder (81) is rotatably connected to the rotating base (80) via the rotating ring (82); and a rotating motor (83) is arranged in the rotating base (80) and is transmission-connected to the rotating cylinder (81).

7. The precise intelligent oxidation aeration energy-saving device according to claim 6 is characterized by: The aeration adjustment member comprises an adjustment motor (84), a rotating shaft (85) and three adjustment shafts (86); the adjustment motor (84) is located in the rotating drum (81); the rotating shaft (85) is vertically connected to the main shaft of the adjustment motor (84); the three adjustment shafts (86) are rotatably connected to the rotating drum (81) at equal intervals; the adjustment shafts (86) are arranged horizontally; a main bevel gear (87) is provided on the rotating shaft (85); one end of each of the adjustment shafts (86) is provided with a slave bevel gear (88) drivingly connected to the main bevel gear (87); the other end of the adjustment shaft (86) is provided with an aeration diffuser (89); the aeration diffuser (89) is connected to the branch pipe (23).

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

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