Long-distance low-energy-consumption aeration pipe and aeration system

Abstract

The utility model provides a long-distance low-energy-consumption aeration pipe and an aeration system. The long-distance low-energy-consumption aeration pipe comprises an outer pipe, a plurality of inner pipes, a one-way flow channel, an air inlet and an air outlet, wherein one end of the outer pipe is closed; the inner pipes are arranged in the outer pipe; wherein a plurality of aeration holes are formed in the outer pipe; the outer wall of the inner pipe is connected with the inner wall of the outer pipe, the air inlet penetrates through the pipe wall of the inner pipe, the air inlet and the air outlet are located at the two ends of the one-way flow channel respectively and communicated with the one-way flow channel, and the air outlet is communicated with the aeration hole. According to the utility model, through the arrangement of the one-way flow channel, the pressure of gas can be relieved, and the uniformity of bubbles in all aeration areas in a long-distance aeration pipe is ensured.

Description

Technical Field

[0001] This utility model relates to the field of aeration system technology, specifically to a long-distance, low-energy-consumption aeration pipe and aeration system. Background Technology

[0002] With the continuous advancement of urbanization and industrialization in my country this year, unprecedented challenges have been brought to water resource management. Water pollution in my country is accelerating, and usable water resources are decreasing day by day. Therefore, wastewater treatment is of great significance.

[0003] Wastewater treatment refers to the physical, chemical, and biological treatment of domestic sewage and industrial wastewater containing pollutants and harmful substances. The aim is to remove or reduce the concentration of pollutants in the water to meet discharge standards or reuse requirements. Biological treatment requires adjusting dissolved oxygen levels based on the participating microorganisms; therefore, aeration is generally used to increase the oxygen concentration in the water, promoting microbial activity and accelerating the decomposition and removal of organic matter.

[0004] In existing technologies, commonly used aeration equipment mainly includes blower aeration equipment and mechanical aeration equipment. Mechanical aeration equipment mainly includes propeller aerators, jet aerators, and impeller aerators. However, mechanical aeration equipment generally must be fixed at a single point in the pond, and the aeration area is limited to a certain range. When used in larger ponds, its aeration effect on the bottom water is poor. Blower aeration equipment consists of an aeration device, a blower (air compressor), and a continuous air delivery pipeline (aeration pipe). The aeration device is an important component of the blower aeration system, and its types mainly include diaphragm microporous aerators and swirling aerators, which can achieve long-distance and large-area aeration.

[0005] However, the flow of air in the aeration pipe causes pressure loss as the pipe length increases; that is, the longer the aeration pipe, the greater the pressure loss. This means that in long aeration pipes, the gas pressure gradually decreases, resulting in insufficient pressure in aeration areas far from the air compressor, leading to uneven aeration. After long-term operation of the aeration equipment, some areas have fewer bubbles and slower flow rates, making them prone to forming large bubbles and facilitating sediment accumulation, while other areas have more bubbles, which are too dense and excessively scour the aeration equipment, accelerating wear. Simultaneously, due to pipe pressure loss, air pressure and flow rates vary at different locations within the pipe, especially at the end, where reduced pressure may lead to decreased flow rates, causing uneven aeration. Therefore, high-power air compressors are generally used to ensure sufficient air pressure at the ends of long aeration pipes.

[0006] Therefore, there is an urgent need to provide an aeration pipe and aeration system that is suitable for long-distance and wide-area aeration and has low power consumption (energy consumption). Utility Model Content

[0007] The purpose of this invention is to propose a long-distance, low-energy-consumption aeration pipe and aeration system to solve the problems in the prior art where existing aeration pipes produce uniform bubbles and have high energy consumption during long-distance, large-scale aeration.

[0008] To achieve the above objectives, this utility model proposes a long-distance, low-energy-consumption aeration pipe, comprising an outer pipe closed at one end, multiple inner pipes installed inside the outer pipe, a unidirectional flow channel, an air inlet, and an air outlet set on the outer wall of the inner pipes for guiding the gas flow direction and extending the gas flow path; wherein, the outer pipe is provided with multiple aeration holes; the outer wall of the inner pipe is connected to the inner wall of the outer pipe, the air inlet is set through the inner pipe wall, the air inlet and the air outlet are respectively located at both ends of the unidirectional flow channel and connected to the unidirectional flow channel, and the air outlet is connected to the aeration holes; the gas flowing in the inner pipe enters the unidirectional flow channel through the air inlet, flows along the unidirectional flow channel into the air outlet, and then aerates through the aeration holes.

[0009] Optionally, the unidirectional flow channel is located in the middle of the outer wall of the inner tube.

[0010] Optionally, the air outlet is arranged in a ring shape.

[0011] Optionally, the unidirectional flow channel includes an intake guide flow channel for communicating with the intake port, a plurality of parallel first flow channels, and a plurality of parallel second flow channels.

[0012] Optionally, one end of one of the first flow channels is connected to the intake guide flow channel, and the other end is connected to the second flow channel.

[0013] Optionally, the second flow channel is used to connect the ends of two adjacent first flow channels; any two adjacent second flow channels are located at the two ends of the same first flow channel.

[0014] Optionally, the gas flow direction in the first flow channel is parallel to the length direction of the inner tube; the gas flow direction in the second flow channel is perpendicular to the gas flow direction in the first flow channel.

[0015] Optionally, the first and second flow channels are connected sequentially end to end in an S-shaped distribution.

[0016] Optionally, a partition is formed between two adjacent first flow channels and connected to the inner wall of the outer tube, and a protruding buffer portion is provided on both sides of the first flow channel.

[0017] Optionally, a first arc surface is provided at the connection between the protruding buffer portion and the side of the first flow channel, and a second arc surface is provided on the side of the protruding buffer portion facing the center of the first flow channel.

[0018] Optionally, a sealing strip is fitted on the outer wall of the inner tube. The sealing strip is located in the middle of the inner tube and wraps around the unidirectional flow channel. The inner wall of the sealing strip is connected to the partition.

[0019] This utility model also discloses an aeration system, including an air compressor, an air supply pipe installed at the air outlet of the air compressor, a connector installed at one end of the air supply pipe, and the aforementioned aeration pipe installed at the other end of the connector.

[0020] Compared with the prior art, this utility model provides a long-distance, low-power aeration pipe and aeration system, which has the following beneficial effects:

[0021] This long-distance, low-energy-consumption aeration pipe and aeration system, through the setting of a unidirectional flow channel, can alleviate the gas pressure, avoiding excessive aeration when the gas pressure is high and insufficient aeration when the gas pressure is low. At the same time, after the gas pressure is alleviated by the unidirectional flow channel, the amount of air used at the front end of the outer pipe can be controlled, ensuring that there is sufficient air for aeration at the rear end of the outer pipe, ensuring sufficient flow for aeration at the end of the long-distance aeration pipe, and ensuring the uniformity of bubbles in all aeration areas in the long-distance aeration pipe.

[0022] In addition, the unidirectional flow channel design ensures uniform aeration, which in turn creates a stable micro-jet zone, thereby reducing the accumulation of sediment, accelerating the decomposition of organic matter, and reducing clogging. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the overall structure of the aeration pipe of this utility model.

[0024] Figure 2 This is a partial cross-sectional schematic diagram of the outer tube of this utility model.

[0025] Figure 3 This is a schematic diagram of the inner tube structure of this utility model.

[0026] Figure 4 This is a schematic diagram of the connection between the unidirectional flow channel and the air outlet of this utility model.

[0027] Figure 5 This is a schematic diagram of the aeration system of this utility model.

[0028] Figure 6 This is a schematic diagram of the inner tube in Embodiment 2 of this utility model.

[0029] Figure 7 This is a structural schematic diagram of the inner tube from another perspective in Embodiment 2 of this utility model.

[0030] Figure 8 This is a schematic diagram of the inner tube in Embodiment 3 of this utility model.

[0031] Figure 9 This is a schematic diagram of the sealing strip in Embodiment 3 of this utility model.

[0032] The diagram shows the following components: 1. Outer pipe; 2. Inner pipe; 21. Sealing strip; 3. Aeration hole; 4. One-way flow channel; 41. Inlet guide flow channel; 42. First flow channel; 43. Second flow channel; 44. Separator; 45. Protruding buffer; 451. First arc surface; 452. Second arc surface; 5. Air inlet; 6. Air outlet; 7. Air compressor; 8. Air supply pipe; 9. Connector. Detailed Implementation

[0033] The following detailed description, in conjunction with the accompanying drawings and specific embodiments, illustrates the present invention. Numerous specific details are set forth in the description below to provide a thorough understanding of the invention. However, the present invention can be implemented in many other ways different from those described herein, and those skilled in the art can make similar extensions without departing from the spirit of the invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0034] The long-distance, low-energy-consumption aeration pipe of this application can be used in situations such as long-distance and large-scale aeration, and of course, it can also be used in other similar application scenarios. The following is a detailed description of a long-distance, low-energy-consumption aeration pipe.

[0035] Example 1

[0036] See appendix Figure 1 — Figure 4 The diagram shows a preferred embodiment of a long-distance, low-energy-consumption aeration pipe according to this application. This long-distance, low-energy-consumption aeration pipe includes an outer pipe 1, one end of which is sealed by a pipe plug; multiple inner pipes 2 installed inside the outer pipe 1; an air inlet 5 and an air outlet 6 disposed on the outer wall of the inner pipes 2; and a unidirectional flow channel 4 for guiding the gas flow direction and extending the gas flow path length. The outer pipe 1 has multiple aeration holes 3, and the outer wall of the inner pipes 2 is connected to the inner wall of the outer pipe 1. The air inlet 5 penetrates the inner wall 2, and the air inlet 5 and air outlet 6 are located at opposite ends of the unidirectional flow channel 4, both connected to the unidirectional flow channel 4. The air outlet 6 is connected to the aeration holes 3.

[0037] This invention, through the arrangement of an outer tube 1 and an inner tube 2, with the inner tube 2 installed inside the outer tube 1, requires the gas to pass through the inner tube 2 before it can be aerated through the aeration holes 3. The one-way flow channel 4 extends the formation of gas aerated through the aeration holes 3 and buffers the gas flow, easing the pressure of the gas in the outer tube 1 and inner tube 2 as it passes through the one-way flow channel 4. This prevents excessive pressure at the aeration holes 3, avoiding the merging and splitting of microbubbles, and also prevents insufficient pressure at the aeration holes 3, resulting in a small number of bubbles, thus improving the uniformity of bubbles during aeration. The air inlet 5 connects the inner tube 2 and the one-way flow channel 4, ensuring that gas can only be aerated after passing through the one-way flow channel 4. The air outlet 6 connects the one-way flow channel 4 and the aeration holes 3, allowing the gas after passing through the one-way flow channel 4 to be aerated. It should be noted that in this application, the inner pipe is produced first, and then the inner pipe 2 is installed during the production of the outer pipe 1. This pipe production process is existing technology, so it will not be described in detail in this application.

[0038] See appendix Figure 2 — Figure 4 As shown, the unidirectional flow channel 4 is located in the middle of the outer wall of the inner tube 2; the air outlet 6 is arranged in a ring shape.

[0039] This invention ensures that the gas flows in a unidirectional direction by setting the unidirectional flow channel 4 on the outer wall of the inner tube 2 without penetrating the inner tube 2 wall. Furthermore, by positioning the unidirectional flow channel 4 in the middle of the inner tube 2, both ends of the inner tube 2 can be fixedly connected to the outer tube 1, improving the strength of the connection between the inner tube 2 and the outer tube 1. By setting the air outlet 6 in an annular shape, an annular groove is formed on the outer wall of the inner tube 2, reducing the limitation on the relative position of the aeration hole 3 and the air outlet 6. This ensures that only the length and position of the aeration hole 3 on the outer tube 1 need to be limited, allowing the aeration hole 3 to communicate with the unidirectional flow channel 4 through the air outlet 6.

[0040] See appendix Figure 2 — Figure 4 As shown, in this utility model, the unidirectional flow channel 4 includes an intake guide flow channel 41 for communicating with the air inlet 5, a plurality of parallel first flow channels 42 and a plurality of parallel second flow channels 43; one end of one of the first flow channels 42 is connected to the intake guide flow channel 41 and the other end is connected to the second flow channel 43; the second flow channel 43 is used to connect the ends of two adjacent first flow channels 42; any adjacent second flow channels 43 are located at both ends of the same first flow channel 42.

[0041] This invention utilizes the intake guide channel 41 to buffer the gas passing through the intake port 5, reducing the gas flow rate. The opening direction of the intake port 5 is perpendicular to the gas flow direction within the outer tube 1. When the gas passes through the intake port 5, it impacts the inner wall of the outer tube 1, thus reducing the gas flow rate. The first channel 42 and the second channel 43 are used to repeatedly adjust the gas flow direction, buffering the gas multiple times within the channels, adjusting the gas flow rate multiple times, and adjusting the gas pressure multiple times, making the gas pressure more uniform, thereby generating uniform bubbles. The second channel 43 connects to the first channel 42, extending the gas path length. The connection between adjacent second channels 43 and the two ends of the same first channel 42, combined with the connection between the second channels 43 and adjacent first channels 42, ensures unidirectional gas movement within the channels.

[0042] See appendix Figure 2 — Figure 4 As shown, in this invention, the gas flow direction in the first flow channel 42 is parallel to the length direction of the inner tube 2; the gas flow direction in the second flow channel 43 is perpendicular to the gas flow direction in the first flow channel 42; wherein, multiple first flow channels 42 and second flow channels 43 are sequentially connected end to end in an S-shaped distribution.

[0043] This invention, by aligning the flow direction of the first flow channel 42 parallel to the length direction of the inner tube 2, fully utilizes the outer wall and length of the inner tube 2, ensuring an extended gas flow path. That is, when a longer path is needed, only the length of the inner tube 2 needs to be extended; there is no need to change the diameter of the inner tube 2, making its production easier. Furthermore, by aligning the gas flow direction in the first flow channel 42 perpendicular to the gas flow direction in the second flow channel 43, the gas can be buffered again when flowing from the first flow channel 42 to the second flow channel 43, reducing the gas velocity, improving the uniformity of gas pressure, and ensuring consistent gas flow from the first flow channel 42 to the second flow channel 43. The angles through which the flow channel 43 passes to the first flow channel 42 are consistent, and the buffering effect is the same. By alternately connecting the first flow channel 42 and the second flow channel 43, multiple first flow channels 42 and multiple second flow channels 43 are connected to form an S-shape, ensuring the buffering effect of the flow channels on the gas. It should be noted that the alternating connection at the beginning and end in this application means that the gas enters at the beginning end (inlet end) of the first flow channel 42, leaves at the end end (outlet end) and enters the beginning end (inlet end) of the second flow channel 43, and then leaves from the end end (outlet end) of the second flow channel 43 and enters the beginning end (inlet end) of the next first flow channel 42, and so on. The beginning and end ends of two adjacent first flow channels 42 are set in opposite directions.

[0044] See appendix Figure 2 — Figure 4As shown, in this utility model, a partition 44 connected to the inner wall of the outer tube 1 is formed between two adjacent first flow channels 42, and a protruding buffer portion 45 is provided on both sides of the first flow channel 42.

[0045] This invention, through the provision of a separator 44, connects the separator 44 to the inner wall of the outer tube 1, ensuring that adjacent first flow channels 42 can only communicate through the second flow channel 43. This ensures that the gas can only flow in one direction within the unidirectional flow channel 4, and that the unidirectional flow channel 4 can buffer the gas, making the gas pressure more uniform. The protruding buffer portion 45 allows for small-range buffering adjustments within the first flow channel 42, preventing the first flow channel 42 from becoming too long and causing the gas velocity to increase again, further improving the buffering effect of the unidirectional flow channel 4. It should be noted that, to further improve the buffering effect of the unidirectional flow channel 4, the protruding buffer portions 45 on both sides of the first flow channel 42 are staggered, making the first flow channel 42 serrated. This ensures that the air flow direction within the first flow channel 42 can be adjusted and changed multiple times, ensuring that the first flow channel 42 can buffer the air.

[0046] See appendix Figure 1 — Figure 4 As shown, the usage process of this utility model is as follows:

[0047] First, pressurized gas enters at one end of the outer tube 1 and flows inside the outer tube 1. When the pressurized gas flows to the inner tube 2, it enters the one-way flow channel 4 from the air inlet 5 of the inner tube 2 for gas buffering, so that the gas pressure is adjusted and the gas pressure in the air outlet 6 of each inner tube 2 is equal, ensuring that the bubbles generated by subsequent aeration are more uniform.

[0048] The gas buffering process within the unidirectional flow channel 4 is as follows: When the gas enters the air guide channel 41 through the air inlet 5, it impacts the inner wall of the outer tube 1, undergoing the first buffering. Subsequently, the gas moves along the air guide channel 41. After being buffered again at the tail of the air guide channel 41, the gas enters the first flow channel 42. In the first flow channel 42, the gas is buffered multiple times by multiple protruding buffer parts 45. Furthermore, the gas is buffered both when it leaves the first flow channel 42 and enters the second flow channel 43, and when it enters the first flow channel 42 from the second flow channel 43. This reduces the gas velocity. As the gas velocity decreases, the collisions and friction between gas molecules decrease, resulting in reduced pressure fluctuations and a more uniform pressure distribution, ensuring that uniform bubbles can be generated during aeration.

[0049] Meanwhile, by setting the unidirectional flow channel 4, the flow rate at the front end of the outer pipe 1 is slowed down and controlled, thereby controlling the amount of gas used at the front end, so that more gas flows to the end of the outer pipe 1, ensuring the amount of gas at the end of the outer pipe 1. Compared with the existing technology, under the same conditions, a lower power consumption air compressor can be used to provide the gas source.

[0050] In addition, generating uniform bubbles can effectively prevent sediment from adhering around the pores and can effectively prevent the aeration head located at aeration hole 3 from becoming clogged.

[0051] See appendix Figure 5 As shown, this utility model also provides an aeration system, including an air compressor 7 for compressing gas, an air supply pipe 8 installed at the air outlet of the air compressor 7, a connector 9 with one end installed on the air supply pipe 8, and the aforementioned aeration pipe installed on the other end of the connector 9.

[0052] Example 2

[0053] See appendix Figure 6 and Figure 7 As shown, the difference between this embodiment and the above embodiment is that, in this embodiment, a first arc surface 451 is provided at the connection between the protruding buffer part 45 and the side of the first flow channel 42, and a second arc surface 452 is provided on the side of the protruding buffer part 45 facing the center of the first flow channel 42.

[0054] In this embodiment, by setting the first arc surface 451 and the second arc surface 452, the obstruction and buffering of the protruding buffer part 45 on the fluid is adjusted to an angle adjustment buffer to avoid the vertical impact of the air fluid on the protruding buffer part 45. This helps to improve the flow state in the flow channel, reduce the vortex area and the flow stagnation area, and allow the air fluid to fill the entire flow channel more evenly. The reduction of the flow stagnation area helps to reduce the deposition of impurities, thereby improving the anti-clogging ability of the flow channel.

[0055] Example 3

[0056] See appendix Figure 8 and Figure 9 As shown, the difference between this embodiment and the above embodiment is that, in this embodiment, a sealing strip 21 is fitted on the outer wall of the inner tube 2. The sealing strip 21 is located in the middle of the inner tube 2 and is used to wrap the one-way flow channel 4. The inner wall of the sealing strip 21 is connected to the partition 44. It should be noted that, in this embodiment, the maximum diameter of the area of ​​the inner tube 2 with the one-way flow channel 4 is smaller than the diameter of the outer wall at both ends of the inner tube 2. That is, the area of ​​the inner tube 2 with the one-way flow channel 4 and the two ends of the inner tube 2 form a groove to allow the sealing strip 21 to pass. The sealing strip 21 is wrapped in the groove to ensure that the inner tube 2 is installed by connecting the outer walls at both ends to the inner wall of the outer tube 1. The sealing strip 21 can be installed by means of adhesive or other methods to wrap the one-way flow channel 4.

[0057] In this embodiment, the sealing strip 21 is used to wrap the one-way flow channel 4 and connect it with the partition 44. This ensures that before the inner tube 2 and outer tube 1 are connected, the first flow channel 42 in the one-way flow channel 4 can only be connected through the second flow channel 43, thus ensuring the effectiveness of the one-way flow channel 4.

[0058] The above embodiments are illustrative of this application and are not intended to limit this application. Any simple modifications to this application are within the protection scope of this application.

Claims

1. A long distance low energy aeration pipe, characterized by, The application relates to an aerator, which comprises an outer pipe (1) with one end closed, a plurality of inner pipes (2) installed in the outer pipe (1), an air inlet (5) and an air outlet (6) arranged on the outer wall of the inner pipe (2), and a one-way flow channel (4) for guiding the direction of gas flow and prolonging the length of the gas flow path. A plurality of aeration holes (3) are arranged on the outer pipe (1). The outer wall of the inner pipe (2) is connected with the inner wall of the outer pipe (1). The air inlet (5) penetrates the pipe wall of the inner pipe (2) and is arranged at the two ends of the one-way flow channel (4) and is connected with the one-way flow channel (4). The gas flowing in the inner pipe (2) enters the one-way flow channel (4) through the air inlet (5), flows along the one-way flow channel (4) into the air outlet (6), and is aerated through the aeration holes (3).

2. The long distance low energy aeration pipe according to claim 1, wherein, The one-way flow channel (4) is arranged at the middle position of the outer wall of the inner pipe (2). The air outlet (6) is arranged in a ring shape.

3. The long distance low energy aeration pipe according to claim 1, wherein, The one-way flow channel (4) comprises an air inlet guiding flow channel (41) for being connected with the air inlet (5), a plurality of first flow channels (42) arranged in parallel and a plurality of second flow channels (43) arranged in parallel. One end of one of the first flow channels (42) is connected with the air inlet guiding flow channel (41), and the other end is connected with the second flow channel (43). The second flow channel (43) is used for connecting the end portions of two adjacent first flow channels (42). Any adjacent second flow channel (43) is located at the two ends of the same first flow channel (42).

4. The long distance low energy aeration pipe according to claim 3, wherein, The gas flow direction in the first flow channel (42) is parallel to the length direction of the inner pipe (2). The gas flow direction in the second flow channel (43) is perpendicular to the gas flow direction in the first flow channel (42).

5. The long distance low energy aeration pipe according to claim 3, wherein, The first flow channel (42) and the second flow channel (43) are alternately connected in sequence and arranged in an S shape.

6. The long distance low energy aeration pipe according to claim 3, wherein, A separation portion (44) connected with the inner wall of the outer pipe (1) is formed between two adjacent first flow channels (42), and a convex buffer portion (45) is arranged on the two sides of the first flow channel (42).

7. The long distance low energy aeration pipe according to claim 6, wherein, The convex buffer portions (45) on the two sides of the first flow channel (42) are arranged in a staggered mode, so that the first flow channel (42) is formed in a zigzag shape.

8. The long distance low energy aeration pipe according to claim 7, wherein, A first arc surface (451) is arranged at the connection position between the convex buffer portion (45) and the side surface of the first flow channel (42), and a second arc surface (452) is arranged on the side of the convex buffer portion (45) facing the center of the first flow channel (42).

9. The long distance low energy aeration pipe according to claim 6, wherein, A sealing strip (21) is arranged on the outer wall of the inner pipe (2), the sealing strip (21) is arranged at the middle position of the inner pipe (2) and wraps the one-way flow channel (4), and the inner wall of the sealing strip (21) is connected with the separation portion (44).

10. An aeration system characterized by, The application further relates to an aerator, which comprises an air compressor (7), a gas conveying pipe (8) arranged at the air outlet end of the air compressor (7), a connecting piece (9) arranged at one end of the gas conveying pipe (8), and an aerator according to any one of claims 1 to 9 arranged at the other end of the connecting piece (9).

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