Aeration pipe

Abstract

The utility model discloses an aeration pipe, which relates to the technical field of aerators and comprises a pipe body, air holes are arranged on the pipe wall of the pipe body, a membrane pipe is sleeved outside the pipe body, two ends of the membrane pipe are connected with the pipe body through hoops, the pipe body comprises a connecting ring and a plug, a first hoop groove is arranged on the outer side wall of the connecting ring, and the plug is arranged in the first hoop groove. A plurality of grid rods are arranged at one end of the connecting ring in the circumferential direction, the long edges of the grid rods extend in the axial direction of the connecting ring, the air holes are formed between every two adjacent grid rods, a plurality of inserting grooves are formed in one end of the plug in the circumferential direction, the ends, away from the connecting ring, of the grid rods are matched with the inserting grooves in an inserted mode, first grooves are formed in the outer side walls of the grid rods, and second grooves are formed in the outer side wall of the plug. The first groove and the second groove are communicated to form a second hoop groove, and the hoops are arranged in the first hoop groove and the second hoop groove. According to the utility model, the frictional resistance when the membrane tube is sleeved and taken off can be reduced, and the sleeving operation and the taking-off operation of the membrane tube are more convenient.

Description

Technical Field

[0001] This utility model relates to the field of aerator technology, specifically to an aeration pipe. Background Technology

[0002] Aeration pipes, also known as tubular aerators, are a new type of aeration equipment. A blower delivers air through an air supply pipe to the aeration pipes located at the bottom of the tank. The air diffuses out in the form of bubbles, dissolving oxygen into the water at the gas-liquid interface, thus enhancing the oxidative decomposition of organic matter in the tank.

[0003] The aeration pipe includes a pipe body with air holes on the pipe wall and a membrane tube sleeved on the outside of the pipe body. The membrane tube has tiny self-closing pores (referred to as micropores) and both ends of the membrane tube are connected to the pipe body by clamps.

[0004] During operation, air from the gas supply pipeline enters the interior of the tube, and then enters the space between the outer wall of the tube and the inner wall of the membrane tube through pores on the tube wall. The micropores of the membrane tube automatically open under air pressure, allowing air to enter the tank for oxygenation. If the pressure is released, the micropores of the membrane tube contract and close to prevent water from flowing back into the micropores.

[0005] Because the distance between the outer wall of the tube and the inner wall of the membrane tube is small (about 1 mm), the frictional resistance between the inner wall of the membrane tube and the outer wall of the tube increases when the membrane tube is put on or removed from the tube, making it inconvenient to put on or remove the membrane sleeve.

[0006] For example, in the patent with publication number CN204779071U, an "aeration pipe" is disclosed. In this aeration pipe, the pipe diameter is 63mm, the inner diameter of the membrane sleeve is 65mm, and the distance between the outer wall of the pipe and the inner wall of the membrane tube is only 1mm. Therefore, the aeration pipe of this patent is not easy to put on and take off the membrane sleeve.

[0007] Therefore, how to reduce the frictional resistance during the application and removal of the membrane tube is a technical problem that needs to be solved. Utility Model Content

[0008] To address the aforementioned shortcomings of existing technologies, this invention proposes an aeration pipe that reduces frictional resistance during the application and removal of the membrane tube, making the application and removal operations more convenient.

[0009] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0010] An aeration pipe includes a pipe body with air holes on its wall. A membrane tube is fitted over the outside of the pipe body, and both ends of the membrane tube are connected to the pipe body by clamps. The pipe body includes a connecting ring and a plug. The outer wall of the connecting ring has a first groove. One end of the connecting ring has multiple grid rods arranged circumferentially, with the long side of each grid rod extending axially along the connecting ring. The air holes are located between adjacent grid rods. One end of the plug has multiple slots arranged circumferentially. The end of each grid rod away from the connecting ring is inserted into a slot. The outer wall of each grid rod has a first groove, and the outer wall of the plug has a second groove. The first and second grooves communicate to form a second groove. The clamps are located in both the first and second grooves.

[0011] Furthermore, the plug includes a sealing column and a guide column connected together. The diameter of the sealing column is larger than the diameter of the guide column. The outer wall of the sealing column is provided with the slot and the second groove. The guide column is located on the side of the sealing column facing the connecting ring. The guide column has an arc-shaped surface at the end away from the sealing column.

[0012] Furthermore, the sealing column has a first cavity inside, and the guide column has a second cavity inside, with the first cavity and the second cavity communicating with each other.

[0013] Furthermore, the first cavity has an opening at the end away from the second cavity.

[0014] Furthermore, the inner wall of the connecting ring is provided with internal threads.

[0015] The beneficial effects of this utility model are:

[0016] 1. When installing and removing the membrane tube from the tube body, because the ends of all the grid rods furthest from the connecting ring are suspended, these suspended ends can converge, forming a conical structure. The increased distance between the outer wall of the conical structure and the inner wall of the membrane tube during installation and removal reduces frictional resistance, facilitating both processes and making membrane tube replacement easier.

[0017] 2. The first and second hoop grooves prevent the membrane tube from moving axially in the tube body, thus improving the reliability of the membrane tube being fitted onto the tube body.

[0018] 3. The design of the guide column and the arc-shaped surface can guide the airflow entering the pipe body, reduce the impact of the airflow on the entire plug, and help improve the assembly reliability of the entire aeration pipe structure.

[0019] 4. The airflow can be guided more evenly to all the pores by the arc-shaped surface and the guide column, which helps to improve the uniformity of airflow distribution and thus allows for more uniform aeration.

[0020] 5. The design of the first and second chambers reduces the weight of the entire plug, thereby reducing the weight of the entire aeration pipe.

[0021] 6. The internal thread on the connecting pipe facilitates assembly with the gas outlet of the gas pipeline, which can improve assembly efficiency. Attached Figure Description

[0022] Figure 1 This is a three-dimensional representation of the aeration pipe in the embodiment. Figure 1 ;

[0023] Figure 2 This is a three-dimensional representation of the aeration pipe in the embodiment. Figure 2 ;

[0024] Figure 3 This is a top view of the aeration pipe in the embodiment;

[0025] Figure 4 yes Figure 3 Sectional view at point AA;

[0026] Figure 5 It is a three-dimensional view of the tube;

[0027] Figure 6 It is a 3D view of the pipe after the plug has been removed;

[0028] Figure 7 It is a three-dimensional plug. Figure 1 ;

[0029] Figure 8 It is a three-dimensional plug. Figure 2 ;

[0030] Figure 9 This is a schematic diagram of fitting a membrane tube onto the tube body;

[0031] Figure 10 This is a schematic diagram of the membrane tube being removed from the tube body.

[0032] Explanation of reference numerals in the attached figures:

[0033] 1-tube body,

[0034] 11-Stomata,

[0035] 12-Connecting ring, 121-Internal thread, 122-First hoop groove,

[0036] 13-Fence bar, 131-First groove,

[0037] 14-Blocking post, 141-First cavity, 142-Opening, 143-Slot, 144-Second groove

[0038] 15-Guide column, 151-Arc-shaped surface, 152-Second cavity,

[0039] 2-Membrane tube,

[0040] 3-Holding hoop. Detailed Implementation

[0041] To better understand this utility model, it will be further described below with reference to the accompanying drawings. It is worth noting that in the description of this utility model, terms such as "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. These terms are used only for the convenience of describing this utility model and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0042] Example:

[0043] See Figures 1 to 10 The aeration pipe includes a pipe body 1, with air holes 11 on the pipe wall. A membrane tube 2 is sleeved on the outside of the pipe body 1, and both ends of the membrane tube 2 are connected to the pipe body 1 by clamps 3.

[0044] The pipe body 1 includes a connecting ring 12, a grid rod 13, and a plug.

[0045] The inner wall of the connecting ring 12 is provided with an internal thread 121. One end of the connecting ring 12 is provided with a plurality of circumferential bars 13. In this embodiment, there are six circumferential bars 13. The circumferential bars 13 and the connecting ring 12 are integrally formed, and the long side of the circumferential bars 13 extends along the axial direction of the connecting ring 12. An air hole 11 is provided between two adjacent circumferential bars 13.

[0046] The plug includes a sealing column 14 and a guide column 15. The guide column 15 is located on one end face of the sealing column 14. The guide column 15 has an arc-shaped surface 151 at the end away from the sealing column 14. The sealing column 14 and the guide column 15 are an integral structure. The diameter of the sealing column 14 is larger than the diameter of the guide column 15. The sealing column 14 has a first cavity 141 inside, and the guide column 15 has a second cavity 152 inside. The first cavity 141 and the second cavity 152 are connected. The first cavity 141 has an opening 142 at the end away from the second cavity 152.

[0047] The outer side wall of the sealing post 14 is provided with a plurality of slots 143 along the circumferential direction. The number of slots 143 is the same as the number of grid rods 13. The end of the grid rod 13 away from the connecting ring 12 is inserted into the slot 143.

[0048] The outer wall of the connecting ring 12 is provided with a first groove 122. The outer wall of the grid rod 13 is provided with a first groove 131, and the outer wall of the sealing column 14 is provided with a second groove 144. All the first grooves 131 and all the second grooves 144 are connected to form a second groove. When the membrane tube 2 is sleeved on the outside of the tube body 1, the first clamp 3 clamps one end of the membrane tube 2 in the first groove 122, and the second clamp 3 clamps the other end of the membrane tube 2 in the second groove. The first groove 122 and the second groove can prevent the membrane tube 2 from moving axially on the tube body 1, thereby improving the reliability of the membrane tube 2 being sleeved on the tube body 1.

[0049] The clamp 3 can be made of stainless steel. The clamp 3 adopts an open ring structure. Both sides of the open ring have ear plates, which are integral with the open ring. A screw thread passes through the two ear plates, with nuts threaded to both ends of the screw. By tightening the nuts at both ends of the screw, the distance between the two nuts can be adjusted. When the distance between the two nuts decreases, the distance between the two ear plates decreases, and the opening of the open ring decreases, allowing the open ring to clamp the membrane tube 2 tightly onto the tube body 1.

[0050] The assembly principle of the aeration pipe in this embodiment is as follows:

[0051] (1) Fitting membrane tube 2 onto tube body 1: See Figure 9 (a) The worker's left hand grasps the end of all the gate bars 13 closest to the connecting ring 12 (i.e., the left end of all the gate bars 13), causing the ends of all the gate bars 13 furthest from the connecting ring 12 to come together, forming a tapered structure. See also Figure 9 (a) Figure 9 (b) to Figure 9 (c) The worker's right hand slides the membrane tube 2 from the tip of the conical structure to the wider end, until the entire membrane tube 2 is fitted onto the conical structure. At this point, the end of the membrane tube 2 closest to the left hand will overlap and wrinkle. During this process, the distance between the outer surface of the conical structure and the membrane tube 2 increases, reducing frictional resistance during fitting and making the fitting operation of the membrane tube 2 easier. See also Figure 9 (d) The worker releases his left hand from the fence bar 13 and uses his left hand to... Figure 9 (c) The folds in the membrane tube 2 are stretched out and cover the first groove 122 on the connecting ring 12, thus completing the installation of the membrane tube 2.

[0052] (2) Install the first clamp 3: The worker uses a clamp 3 to clamp the membrane tube 2 into the first clamp groove 122.

[0053] (3) Install the plug: The worker inserts the end of the sealing column 14 with the guide column 15 into the inner cavity of the cylindrical structure formed by all the grid rods 13 until the end of the grid rod 13 away from the connecting ring 12 is inserted into the slot 143 of the sealing column 14. At this time, all the first grooves 131 and all the second grooves 144 are connected to form the second hoop groove.

[0054] (4) Install the second clamp 3: The worker uses the second clamp 3 to clamp the membrane tube 2 in the second clamp groove.

[0055] The principle behind the disassembly of the aeration tube in this embodiment is as follows:

[0056] (1) Remove the two clamps 3: The workers remove the clamps 3 from both ends of the membrane tube 2.

[0057] (2) Disassembling the plug: The worker pulls the guide column 15 on the plug column 14 out of the cylindrical structure formed by all the grid bars 13.

[0058] (3) Remove membrane tube 2 from tube body 1: See Figure 10 (a) The worker's left hand pushes the left end of membrane tube 2, exposing the left end of grid bar 13. The worker's left hand then grasps the left ends of all grid bars 13 together, forming a tapered structure. See also Figure 10 (b) to Figure 10 (c) The worker pulls the membrane tube 2 with his right hand to completely separate the membrane tube 2 from the conical structure. During this process, because all the grid bars 13 form a conical structure, the distance between the outer side of the conical structure and the membrane tube 2 increases, which can reduce the frictional resistance when removing the membrane tube 2 and make it easier to remove the membrane tube 2.

[0059] Through the above process of disassembling and assembling the aeration pipe, it can be seen that this embodiment has the following effects:

[0060] When the membrane tube 2 is fitted onto the tube body 1, and when the membrane tube 2 is removed from the tube body 1, because the ends of all the grid rods 13 away from the connecting ring 12 are suspended, the suspended ends of all the grid rods 13 can converge, allowing all the grid rods 13 to form a conical structure. When the membrane tube 2 is fitted onto the conical structure, or when the membrane tube 2 is removed from the conical structure, the distance between the outer wall of the conical structure and the inner wall of the membrane tube 2 increases, which reduces the frictional resistance when fitting and removing the membrane tube 2, making the fitting and removal operations more convenient, and facilitating the replacement of the membrane tube 2.

[0061] The operating principle of the aeration pipe in this embodiment is as follows:

[0062] The assembled aeration pipe is connected to the air outlet of the air supply pipe by threading the connecting ring 12. The blower sends air into the interior of the pipe body 1 through the air supply pipe. The air entering the interior of the pipe body 1 is guided to the periphery of the guide column 15 by the arc-shaped surface 151 at the end of the guide column 15, and then blown to the membrane tube 2 through the air hole 11. Finally, it is blown into the water body through the micropores on the membrane tube 2 to achieve aeration treatment.

[0063] Through the aeration process described above, it can be seen that this embodiment has the following effects:

[0064] First, the design of the guide column 15 and the arc-shaped surface 151 can guide the airflow entering the pipe body 1, reduce the impact of the airflow on the entire plug, and help improve the assembly reliability of the entire aeration pipe structure.

[0065] Secondly, the airflow can be guided more evenly to all the air holes 11 by the arc-shaped surface 151 and the guide column 15, which helps to improve the uniformity of airflow distribution and thus allows for more uniform aeration.

[0066] Third, the arrangement of the first chamber 141 and the second chamber 152 can reduce the weight of the entire plug, thereby helping to reduce the weight of the entire aeration pipe.

[0067] Fourth, the internal thread 121 on the connecting pipe facilitates assembly with the gas outlet of the gas pipeline, which can improve assembly efficiency.

[0068] Obviously, those skilled in the art can make various modifications and variations to this utility model without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims of this utility model and their equivalents, this utility model also intends to include these modifications and variations.

Claims

1. An aeration pipe comprising a pipe body, a pipe wall of the pipe body being provided with air holes, an outer portion of the pipe body being provided with a membrane tube, both ends of the membrane tube being connected to the pipe body by a clamp, characterized in that, The pipe body comprises a connecting ring and a plug, an outer sidewall of the connecting ring is provided with a first hoop groove, a plurality of grid rods are circumferentially arranged at one end of the connecting ring, long edges of the grid rods extend along an axial direction of the connecting ring, the gas holes are arranged between adjacent two grid rods, one end of the plug is circumferentially provided with a plurality of insertion grooves, one end of the grid rod away from the connecting ring is insertedly matched with the insertion groove, an outer sidewall of the grid rod is provided with a first recess, an outer sidewall of the plug is provided with a second recess, the first recess and the second recess are communicated to form a second hoop groove, and the first hoop groove and the second hoop groove are both provided with the hoop.

2. An aeration pipe according to claim 1, characterized in that The plug comprises a plugging column and a flow guide column connected with each other, a diameter of the plugging column is greater than that of the flow guide column, an outer sidewall of the plugging column is provided with the insertion groove and the second recess, the flow guide column is arranged on a side of the plugging column facing the connecting ring, and the flow guide column is provided with an arc surface at one end away from the plugging column.

3. An aeration pipe according to claim 2, characterised in that An inner portion of the plugging column is provided with a first cavity, and an inner portion of the flow guide column is provided with a second cavity.

4. An aerator tube according to claim 3, wherein, The first cavity is provided with an open end at one end away from the second cavity.

5. An aeration pipe according to any one of claims 1-4, characterized in that An inner wall of the connecting ring is provided with an internal thread.

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