A smart aeration device for MBR membranes

Abstract

This utility model discloses an intelligent aeration device for MBR membranes, including a frame. Inside the frame are an MBR frame, a fixing bracket, an aeration pipe, and a pumping pipe. The pumping pipe extends vertically to an air flow meter on the outside of the frame and outputs gas to the aeration pipe. A level gauge is installed on the inner wall of the frame. A power chamber is located on one side of the frame, and the aeration pipe extends laterally into the power chamber. A T-junction is provided between the fixing bracket and the power chamber in the aeration pipe, and the T-junction is vertically connected to the pumping pipe. This utility model, by designing a regulating pipe inside the aeration pipe, allows for adjustment of the regulating pipe via a motor and transmission structure during the aeration process. This ensures the original hourly air output while reducing or increasing the outlet air pressure formed by the airflow channel of the regulating pipe, thereby regulating the bubble size.

Description

Technical Field

[0001] This utility model relates to the field of aeration devices, and in particular to an intelligent aeration device for MBR membranes. Background Technology

[0002] MBR aeration is an important means of controlling membrane fouling and one of the key technologies to ensure the normal and stable operation of the MBR system. The MBR aeration system consists of a blower, gas delivery pipeline, valves, instruments and a purging device located at the bottom of the membrane tank.

[0003] The uniformity of aeration directly affects the normal operation of MBR membranes. When aeration is uneven, the membrane curtains in the low aeration volume section are quickly fouled, while the membrane in the high aeration volume section may suffer structural damage to the membrane fibers due to excessive aeration. At the same time, excessive aeration leads to high energy consumption. Therefore, how to ensure the aeration volume while intelligently adjusting the size and uniformity of bubbles is the current development trend of MBR membrane aeration devices. Utility Model Content

[0004] The technical problem to be solved by this utility model is to overcome the defects of the prior art and provide an intelligent aeration device for MBR membranes, which mainly solves the technical problem of how current aeration devices can ensure aeration volume while making aeration uniform.

[0005] To solve the above-mentioned technical problems, this utility model provides the following technical solution: This utility model relates to an intelligent aeration device for MBR membranes, comprising a frame, an MBR frame, a fixing frame, an aeration pipe, and a pumping pipe inside the frame. The pumping pipe extends vertically to an air flow meter on the outside of the frame and outputs gas to the aeration pipe. A level gauge is installed on the inner wall of the frame. A power chamber is provided on one side of the frame, and the aeration pipe extends laterally into the power chamber. A three-way pipe is provided between the fixing frame and the power chamber, and the three-way pipe is vertically connected to the pumping pipe. The power chamber includes a motor and a transmission mechanism. A rotating shaft is installed at the bottom of the transmission mechanism, and the motor is driven to the rotating shaft through the transmission structure. The rotating shaft extends laterally into the aeration pipe. An adjusting pipe is provided inside the aeration pipe, and airflow channels are provided on both sides of the adjusting pipe. An air inlet is installed at one end of the adjusting pipe and is fixedly connected to the adjusting pipe. The air inlet is located inside the three-way pipe, and one end of the air inlet is connected to the rotating shaft.

[0006] Preferably, the power chamber has a C-shaped structure, a motor is provided on the upper part of the power chamber, a first bevel gear is installed at one end of the motor, the transmission mechanism includes a second bevel gear, the second bevel gear meshes with the first bevel gear, a vertical transmission shaft is installed at the bottom of the second bevel gear, a third bevel gear is installed at the bottom of the vertical transmission shaft, a fourth bevel gear is installed on one side of the rotating shaft, and the fourth bevel gear meshes with the third bevel gear.

[0007] Preferably, the air inlet is provided with openings at both the top and bottom, and the diameter of the air inlet is smaller than that of the regulating pipe and the rotating shaft.

[0008] Preferably, the aeration pipe is provided with extension pipes at equal intervals on both sides of the bottom of the fixed frame, and the top and bottom of the extension pipes are provided with equally spaced bubble holes.

[0009] Preferably, a bearing seat is installed at the end of the regulating pipe away from the tee pipe, the bearing seat is fixedly connected to the inner wall of the aeration pipe, and the regulating pipe and the inner wall of the aeration pipe are in clearance fit.

[0010] Preferably, the level gauge is used to monitor the liquid level inside the frame, the air flow meter is used to monitor the aeration rate of the MBR frame, and the outside of the frame also includes a system host. The system host is connected to the level gauge, the air flow meter and the motor respectively, and the system host includes a CPU, an MCU microcontroller chip or a PLC controller.

[0011] Preferably, the MBR frame is located on the upper part of the fixed frame, the aeration pipe is used to aerate the MBR frame, and the end of the aeration pipe is installed at the bottom of the fixed frame.

[0012] Preferably, one end of the rotating shaft is installed to the inner wall of the power cavity, the fourth bevel gear is located in the middle of the rotating shaft, and the vertical transmission shaft extends downward along the vertical part of the power cavity to the bottom of the frame.

[0013] Preferably, the surface of the vertical drive shaft is provided with a fixing mechanism to fix it to the inner wall of the power chamber, both ends of the air inlet are equipped with dynamic sealing bearings between them and the three-way pipe, and the number of level gauges is at least three.

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows: This invention features an adjustable tube inside the aeration pipe. During the aeration process, a motor can adjust the adjustable tube via a transmission structure, ensuring the original hourly air output while reducing or increasing the air pressure in the airflow channel of the adjustable tube, thus regulating the bubble size. If necessary, it can also be combined with a sensor to achieve adaptive action for real-time adjustment. Attached Figure Description

[0015] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings: Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a cross-sectional view of the aeration pipe structure of this utility model; Figure 3 This is an exploded view of the aeration pipe structure of this utility model; Figure 4 This is a cross-sectional view of the aeration pipe structure of this utility model; In the diagram: 1. Frame; 101. MBR frame; 102. Fixing bracket; 103. Aeration pipe; 104. Liquid level gauge; 105. Pump pipe; 106. Air flow meter; 2. Power chamber; 201. Motor; 202. First bevel gear; 203. Second bevel gear; 204. Vertical drive shaft; 205. Third bevel gear; 206. Fourth bevel gear; 3. T-shaped pipe; 4. Rotating shaft; 5. Adjusting pipe; 501. Airflow channel; 502. Bearing seat; 6. Air inlet; 601. Opening; 7. Extension pipe; 701. Bubble hole; 8. Dynamic seal bearing. Detailed Implementation

[0016] The preferred embodiments of the present invention will be described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are for illustration and explanation only and are not intended to limit the present invention.

[0017] In the attached diagram, all identical reference numerals refer to the same components.

[0018] Example 1 like Figure 1-4As shown, this utility model provides an intelligent aeration device for MBR membranes, including a frame 1. Inside the frame 1 are an MBR frame 101, a fixing bracket 102, an aeration pipe 103, and a pumping pipe 105. The pumping pipe 105 extends vertically to an air flow meter 106 on the outside of the frame 1, and outputs gas to the aeration pipe 103. A level gauge 104 is installed on the inner wall of the frame 1. A power chamber 2 is provided on one side of the frame 1, and the aeration pipe 103 extends laterally into the power chamber 2. A three-way pipe 3 is provided between the fixing bracket 102 and the power chamber 2 in the aeration pipe 103. Vertically connected to the air pump pipe 105, the power chamber 2 includes a motor 201 and a transmission mechanism. A rotating shaft 4 is installed at the bottom of the transmission mechanism. The motor 201 is driven to the rotating shaft 4 through the transmission structure. The rotating shaft 4 extends laterally into the aeration pipe 103. An adjusting pipe 5 is provided inside the aeration pipe 103. Airflow channels 501 are provided on both sides of the adjusting pipe 5. An air inlet 6 is installed at one end of the adjusting pipe 5. The air inlet 6 is fixedly connected to the adjusting pipe 5 and is located inside the three-way pipe 3. One end of the air inlet 6 is connected to the rotating shaft 4. Its structure is as follows Figure 1 As shown, the conventional structure includes a frame 1, through which gas is output from the pumping pipe 105 to the aeration pipe 103, forming bubbles from the lower part of the fixing frame 102, which then rise and affect the MBR frame 101. Conventional aeration pipe 103 cannot achieve local adjustment. When the aeration is uneven, the membrane curtain in the part with small aeration volume is quickly blocked, affecting the stability of operation. The membrane in the part with large aeration volume may suffer structural damage to the membrane fibers due to excessive aeration. At the same time, excessive aeration volume results in high energy consumption. How to adjust the air output of aeration pipe 103 in a simple and convenient way is the current direction of technological development. Please see Figure 1 A power chamber 2 is provided on the surface of the original frame 1, allowing the power chamber 2 to output power to the rotating shaft 4 at the bottom. The rotating shaft 4 extends into the aeration pipe 103 to form a rotation adjustment function; please refer to Figure 2-4 When the aeration rate of the aeration pipe 103 needs to be adjusted, the rear air inlet 6 remains unaffected and can still continuously output air through the pump pipe 105 during rotation; while the regulating pipe 5, due to the airflow channels 501 on both sides, will form a shape similar to... Figure 4 The airflow channel 501, which is partially blocked until the airflow is completely blocked, will greatly reduce the generation of bubbles. At the same time, the airflow channel 501 continuously decreases, and the air pump continuously aerates the air, causing the internal pressure to increase. This, in turn, causes a jet to form on the inner wall of the air outlet extension pipe 7, thereby assisting in clearing the airflow from the bubble outlet 701.

[0019] Furthermore, the power chamber 2 has a C-shaped structure, and a motor 201 is provided on the upper part of the power chamber 2. A first bevel gear 202 is installed at one end of the motor 201. The transmission mechanism includes a second bevel gear 203, which meshes with the first bevel gear 202. A vertical transmission shaft 204 is installed at the bottom of the second bevel gear 203, and a third bevel gear 205 is installed at the bottom of the vertical transmission shaft 204. A fourth bevel gear 206 is installed on one side of the rotating shaft 4, and the fourth bevel gear 206 meshes with the third bevel gear 205. In order to realize the transmission mechanism to drive the rotating shaft 4, the following is provided: Figure 1 The structure is such that the upper motor 201 of the power chamber 2 serves as the main power source, and power is transmitted through a vertical transmission rod. Based on the kinetic energy transmission of the first bevel gear 202, the second bevel gear 203, the third bevel gear 205, and the fourth bevel gear 206, the transmission shaft located at the bottom can be rotated by the power of the motor 201. This is how the operating principle of this scheme is realized. At the same time, the transmission mechanism can also be other transmission components, such as a synchronous belt with a tensioning pulley.

[0020] Furthermore, the air inlet 6 has openings 601 at both the top and bottom, and the diameter of the air inlet 6 is smaller than that of the regulating pipe 5 and the rotating shaft 4; dynamic sealing bearings 8 are installed between both ends of the air inlet 6 and the three-way pipe 3. This structure allows airflow to pass through the top and bottom of the intake pipe 6, and the dynamic sealing bearings 8 on both sides form a closed space, ensuring that airflow can only enter the internal hollow space of the regulating pipe 5 from the opening 601. Figure 3 As shown, this ensures that the airflow direction is unique.

[0021] Furthermore, the aeration pipe 103 is provided with extension pipes 7 at equal intervals on both sides of the bottom of the fixed frame 102, and the top and bottom of the extension pipes 7 are provided with equally spaced bubble holes 701; the end of the regulating pipe 5 away from the tee pipe 3 is equipped with a bearing seat 502, the bearing seat 502 is fixedly connected to the inner wall of the aeration pipe 103, and the regulating pipe 5 and the inner wall of the aeration pipe 103 are in clearance fit; the MBR frame 101 is located on the upper part of the fixed frame 102, the aeration pipe 103 is used to aerate the MBR frame 101, and the end of the aeration pipe 103 is installed at the bottom of the fixed frame 102; The regulating pipe 5 is located coaxially inside the aeration pipe 103. Both ends of the regulating pipe 5 need to be fixed to a certain extent. This is mainly achieved by the bearing seat 502 at the end of the aeration pipe 103 and the dynamic sealing bearings 8 at both ends of the tee pipe 3. The clearance fit allows the regulating pipe 5 to rotate freely inside the aeration pipe 103. It also allows the airflow channel 501 to be shielded. The clearance fit allows the airflow to pass through the gap between the regulating pipe 5 and the aeration pipe 103 and flow into the extension pipe 7. At the same time, the extension pipes 7 installed on both sides of the aeration pipe 103 allow the bubbles to have a wider aeration range to cover the wider MBR frame 101.

[0022] Furthermore, the surface of the vertical drive shaft 204 is provided with a fixing mechanism to fix it to the inner wall of the power cavity 2, one end of the rotating shaft 4 is installed to the inner wall of the power cavity 2, the fourth bevel gear 206 is located in the middle of the rotating shaft 4, and the vertical drive shaft 204 extends downward along the vertical part of the power cavity 2 to the bottom of the frame 1. Its structure allows the vertical rotating shaft 4 to be fixed inside the power chamber 2, extending the kinetic energy to one side of the bottom of the frame 1, so that when the frame 1 is pre-buried below the ground, the length of the vertical rotating shaft 4 is sufficient to allow the rotating shaft 4 to move.

[0023] Specifically, in order to facilitate intelligent adjustment of the bubble volume of the aeration pipe 103, this device is mainly designed with a rotatable adjustment pipe 5 installed inside the aeration pipe 103; that is, when the operator finds that the aeration is uneven, the bubble volume of a certain part of the aeration pipe 103 can be adjusted as needed.

[0024] After the regulating motor 201 rotates, the motor 201 will rotate the air inlet 6 through the rotating shaft 4 via the transmission mechanism. The inside of the air inlet 6 is connected to the inside of the regulating pipe 5, so that the regulating pipe 5 also rotates synchronously. At the same time, the internal airflow will be regulated according to the size of the openings on both sides of the airflow channel 501 and the aeration pipe 103. The air pressure formed at the extension pipe 7 will also have a regulating effect. Compared with the original method of directly regulating the power of the air pump connected to the air pump pipe 105, this solution can directly regulate the size of the bubbles generated, that is, the airflow channel 501 is narrower. When the internal air pressure is high, the bubbles are small. The air pressure forms a jet that impacts the inside of the extension tube, and the bubbles are directly broken up. Alternatively, when the air pressure is low, the outlet space of the airflow channel 501 is narrowed to increase the airflow pressure, allowing the airflow to be evenly distributed to each different bubble hole 701. When the airflow channel 501 is wide, the internal air pressure is low, and the output bubbles can be directly output upward from the bubble holes 701 of the extension tube. For example, when the air pressure is low, the bubbles can flow upward directly along the nearest bubble hole 701 in the form of larger bubbles, thereby achieving intelligent regulation.

[0025] Example 2 The difference from the embodiment is that the level gauge 104 is used to monitor the liquid level height inside the frame 1, and there are at least three level gauges 104. The air flow meter 106 is used to monitor the aeration rate of the MBR frame 101. The frame 1 also includes a system host outside, which is connected to the level gauge 104, the air flow meter 106 and the motor 201 respectively. The system host includes a CPU, an MCU microcontroller chip or a PLC controller.

[0026] Specifically, this solution can also connect the motor 201 to the system host to form intelligent control. After adjusting the air volume output by the air flow meter 106 and adjusting the motor 201 accordingly, it can adjust the aeration state currently formed inside the frame 1. When the output air volume is determined, the size of the bubbles output by the aeration pipe 103 can be selected. It can also be used in conjunction with the liquid level gauge 104 for adjustment. For example, if large bubbles are generated when the liquid level is high, it will cause the liquid surface to splash. At this time, the motor 201 can be adjusted to make the regulating pipe 5 slightly reduce the bubble output size, thereby realizing intelligent adjustment and control.

[0027] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. An intelligent aeration device for an MBR membrane, comprising a frame (1), wherein an MBR frame (101), a fixing frame (102), an aeration pipe (103), and a pumping pipe (105) are provided inside the frame (1), the pumping pipe (105) extends vertically to an air flow meter (106) on the outside of the frame (1), and the pumping pipe (105) outputs gas to the aeration pipe (103), and a level gauge (104) is installed on the inner wall of the frame (1), characterized in that, The frame (1) has a power chamber (2) on one side, and the aeration pipe (103) extends laterally to the power chamber (2). The aeration pipe (103) between the fixed frame (102) and the power chamber (2) is provided with a three-way pipe (3). The three-way pipe (3) is vertically connected to the air pump pipe (105). The power chamber (2) includes a motor (201) and a transmission mechanism. The bottom of the transmission mechanism is equipped with a rotating shaft (4). The motor (201) is transmitted to the rotating shaft (4) through the transmission structure. The rotating shaft (4) extends laterally to the inside of the aeration pipe (103). The aeration pipe (103) is provided with an regulating pipe (5). The two sides of the regulating pipe (5) are provided with airflow channels (501). One end of the regulating pipe (5) is equipped with an air inlet (6). The air inlet (6) is fixedly connected to the regulating pipe (5), and the air inlet (6) is located inside the three-way pipe (3). One end of the air inlet (6) is connected to the rotating shaft (4).

2. The MBR membrane intelligent aeration device according to claim 1, characterized in that, The power chamber (2) has a C-shaped structure. A motor (201) is provided on the upper part of the power chamber (2). A first bevel gear (202) is installed at one end of the motor (201). The transmission mechanism includes a second bevel gear (203). The second bevel gear (203) meshes with the first bevel gear (202). A vertical transmission shaft (204) is installed at the bottom of the second bevel gear (203). A third bevel gear (205) is installed at the bottom of the vertical transmission shaft (204). A fourth bevel gear (206) is installed on one side of the rotating shaft (4). The fourth bevel gear (206) meshes with the third bevel gear (205).

3. The MBR membrane intelligent aeration device according to claim 2, characterized in that, The air inlet (6) has openings (601) at both the top and bottom. The diameter of the air inlet (6) is smaller than that of the regulating pipe (5) and the rotating shaft (4).

4. The MBR membrane intelligent aeration device according to claim 3, characterized in that, The aeration pipe (103) is provided with extension pipes (7) at equal distances on both sides of the bottom of the fixing frame (102), and the top and bottom of the extension pipe (7) are provided with equally spaced bubble holes (701).

5. The MBR membrane intelligent aeration device according to claim 4, characterized in that, The regulating pipe (5) is equipped with a bearing seat (502) at the end away from the three-way pipe (3). The bearing seat (502) is fixedly connected to the inner wall of the aeration pipe (103). The regulating pipe (5) and the inner wall of the aeration pipe (103) are in clearance fit.

6. The MBR membrane intelligent aeration device according to claim 5, characterized in that, The level gauge (104) is used to monitor the liquid level inside the frame (1), and the air flow meter (106) is used to monitor the aeration rate of the MBR frame (101). The frame (1) also includes a system host, which is connected to the level gauge (104), the air flow meter (106) and the motor (201) respectively. The system host includes a CPU, an MCU microcontroller chip or a PLC controller.

7. The MBR membrane intelligent aeration device according to claim 6, characterized in that, The MBR frame (101) is located on the upper part of the fixed frame (102), and the aeration pipe (103) is used to aerate the MBR frame (101). The end of the aeration pipe (103) is installed at the bottom of the fixed frame (102).

8. The MBR membrane intelligent aeration device according to claim 7, characterized in that, One end of the rotating shaft (4) is installed to the inner wall of the power cavity (2), the fourth bevel gear (206) is located in the middle of the rotating shaft (4), and the vertical transmission shaft (204) extends downward along the vertical part of the power cavity (2) to the bottom of the frame (1).

9. The MBR membrane intelligent aeration device according to claim 8, characterized in that, The surface of the vertical drive shaft (204) is provided with a fixing mechanism to fix it to the inner wall of the power chamber (2). Both ends of the air inlet (6) are equipped with dynamic sealing bearings (8) between them and the three-way pipe (3). The number of liquid level gauges (104) is at least three.

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