Low-energy-consumption aeration system suitable for oxidation ditch

Abstract

The utility model relates to a low energy consumption aeration system suitable for oxidation ditch, including fan, main pipeline, oxidation ditch, be equipped with the gas pipeline and aerator on the oxidation ditch, said fan is connected with the main pipeline, the main pipeline is connected with the gas pipeline through the bend pipe, the gas pipeline is connected with the aerator; the aerator is a pipe type aerator capable of being lifted; according to the utility model, the advantage of high dissolved oxygen of the lifting type tubular aerator is utilized, and compared with the traditional aeration device, the air supply of the fan saves energy consumption, so that the power of the fan is reduced, the air supply path is reduced, meanwhile, the maintenance cost of the lifting type tubular aerator is low, and the low-energy-consumption operation of an oxidation ditch sewage plant is ensured.

Description

Technical Field

[0001] This utility model belongs to the field of aeration technology, specifically a low-energy aeration system suitable for oxidation ditches. Background Technology

[0002] Currently, wastewater treatment processes used in wastewater treatment plants can be broadly categorized into two types: activated sludge processes and contact oxidation processes. Aeration is the core technology of all these processes and is an indispensable step. Simultaneously, aeration equipment is the most energy-intensive component in aerobic biological wastewater treatment systems, accounting for 60-70% of the total energy consumption of activated sludge wastewater treatment plants. The performance of the aeration equipment directly affects the wastewater treatment effect and also influences the operating costs of the wastewater treatment plant.

[0003] Ensuring effective aeration and oxygenation depends on the aeration equipment. There are two main types of aeration equipment: blower aeration and mechanical aeration. Blower aeration systems are very complex, consume a lot of power, and are prone to clogging and other accidents. When clogging occurs and equipment needs repair, the system must be stopped, and all the water in the aeration tank must be drained before repairs can begin. This repair method is time-consuming, labor-intensive, increases maintenance costs, and makes management and maintenance very inconvenient. Utility Model Content

[0004] The purpose of this section is to outline some aspects of embodiments of the present invention and to briefly describe some preferred embodiments. Simplifications or omissions may be made in this section, as well as in the abstract and title of this application, to avoid obscuring the purpose of these documents; however, such simplifications or omissions should not be construed as limiting the scope of the present invention.

[0005] Given the following technical problems in the existing technology: the pipeline layout of the existing oxidation ditch aeration system requires higher power for gas transportation, and the airflow is difficult to deliver directly to all parts of the oxidation ditch, resulting in a low distribution area.

[0006] To solve the above-mentioned technical problems, this utility model provides the following technical solution: a low-energy aeration system suitable for oxidation ditches, including a blower, a main pipeline, an oxidation ditch, and an air supply pipeline installed on the oxidation ditch. The blower is connected to the main pipeline, and the main pipeline is connected to the air supply pipeline through a bend pipe. The air supply pipeline is connected to an aerator through an air guide pipe. The aerator is installed at the bottom of the oxidation ditch, and the aerator is a liftable tubular aerator.

[0007] The main pipeline is installed at a higher height than the gas transmission pipeline.

[0008] As a preferred technical solution for a low-energy aeration system suitable for oxidation ditches, the bent pipe includes a horizontal section and an inclined section, and the angle between the horizontal section and the inclined section is greater than 120°.

[0009] As a preferred technical solution for a low-energy aeration system suitable for oxidation ditches, the oxidation ditch includes an outer ring ditch and an inner ring ditch, a first platform is provided between the outer ring ditch and the inner ring ditch, and a second platform is provided within the inner ring ditch.

[0010] As a preferred technical solution for a low-energy aeration system suitable for oxidation ditches, the air supply pipeline includes a first bend, a first straight pipe and a second bend located on the outside of the outer ring ditch. The first bend is connected to the horizontal section and the first straight pipe is connected to the first bend and the second bend.

[0011] As a preferred technical solution for a low-energy aeration system suitable for oxidation ditches, a second straight pipe and a third straight pipe are provided on the second platform. The second straight pipe is connected to the main pipeline through a bend, and the third straight pipe is connected to the second straight pipe through a third bend.

[0012] As a preferred technical solution for a low-energy aeration system suitable for oxidation ditches, both the outer and inner ring ditches are equipped with horizontal air guide pipes, which are connected to the air supply pipeline.

[0013] As a preferred technical solution for a low-energy aeration system suitable for oxidation ditches, the air guide pipe is provided with a detachable connecting rod at the bottom, and an aeration pipe frame is provided at the bottom of the oxidation ditch.

[0014] The beneficial effects of this utility model are as follows: This utility model utilizes the advantage of high dissolved oxygen in the liftable tubular aerator, and the blower air supply saves energy compared to traditional aeration devices, thereby reducing blower power and reducing air supply paths. At the same time, the liftable tubular aerator has low maintenance costs, ensuring low-energy operation of oxidation ditch wastewater treatment plants. Attached Figure Description

[0015] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Among them:

[0016] Figure 1 This is a schematic diagram of the overall distribution structure of this utility model;

[0017] Figure 2 This is a schematic diagram of the structure of the bent tube of this utility model;

[0018] Figure 3 This is a schematic diagram of the distribution structure of the air guide tube in this utility model.

[0019] Figure reference numerals: Fan 1, Inclined section 52, First platform 33, First bend 41, Horizontal section 51, First straight pipe 42, Second bend 43, Second platform 34, Bent pipe 5, Main pipeline 2, Third straight pipe 342, Third bend 343, Second straight pipe 341, Outer groove 31, Inner groove 32, Gas transmission pipeline 4, Air guide pipe 6, Connecting rod 61, Aeration pipe frame 62, Oxidation ditch 3. Detailed Implementation

[0020] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0021] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0022] Secondly, the term "an embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that excludes other embodiments.

[0023] Secondly, this utility model is described in detail with reference to the schematic diagrams. When describing the embodiments of this utility model, for ease of explanation, the cross-sectional views illustrating the device structure may be partially enlarged, not adhering to the usual scale. Furthermore, the schematic diagrams are merely examples and should not limit the scope of protection of this utility model. In addition, actual manufacturing should include the three-dimensional spatial dimensions of length, width, and depth.

[0024] Example 1

[0025] Reference Figures 1-3 This embodiment provides a low-energy aeration system suitable for oxidation ditches, including a blower 1, a main pipeline 2, an oxidation ditch 3, and an air supply pipeline 4 installed on the oxidation ditch 3. The blower 1 is connected to the main pipeline 2, and the main pipeline 2 is connected to the air supply pipeline 4 through a bend pipe 5. The air supply pipeline 4 is connected to an aerator through an air guide pipe 6. The aerator is installed at the bottom of the oxidation ditch 3 and is a liftable tubular aerator.

[0026] The main pipeline 2 is installed at a higher height than the gas transmission pipeline 4.

[0027] Oxidation ditch 3 is a deep ditch with a straight groove opening, which includes semi-circular sections at both ends and a straight groove section connecting the semi-circular sections in the middle.

[0028] The bent pipe 5 includes a horizontal section 51 and an inclined section 52, with an angle greater than 120° between the horizontal section 51 and the inclined section 52.

[0029] The bend in pipe 5 allows airflow to enter the gas pipeline 4 more smoothly from the main pipeline 2 at a higher position.

[0030] The oxidation ditch 3 includes an outer ring ditch 31 and an inner ring ditch 32. A first platform 33 is provided between the outer ring ditch 31 and the inner ring ditch 32, and a second platform 34 is provided inside the inner ring ditch 32.

[0031] The gas pipeline 4 includes a first bend 41, a first straight pipe 42 and a second bend 43 located outside the outer ring trench 31. The first bend 41 is connected to the horizontal section 51 and the first straight pipe 42 is connected to the first bend 41 and the second bend 43.

[0032] Furthermore, the connection angle between the first bend 41 and the horizontal section 51 is an obtuse angle, which facilitates gas transport and reduces gas energy loss.

[0033] The second platform 34 is equipped with a second straight pipe 341 and a third straight pipe 342. The second straight pipe 341 is connected to the main pipe 2 through a bend pipe 5, and the third straight pipe 342 is connected to the second straight pipe 341 through a third bend pipe 343.

[0034] It should be noted that valves are installed at the joints of each pipeline, especially valves are installed at the outlets of the main pipeline 2 to each gas supply pipeline 4 to control the gas supply status of a single oxidation tank, and valves are also installed at the connection points of each gas guide pipe 6 to the gas supply pipeline 4 to control the gas supply status to a single gas guide pipe 6.

[0035] Both the outer groove 31 and the inner groove 32 are equipped with horizontal air guide pipes 6, which are connected to the air supply pipeline 4.

[0036] Furthermore, the air guide pipe 6 set on the outer groove 31 is connected to the first bend pipe 41, the first straight pipe 42 and the second bend pipe 43. The bend section is connected to the bend pipe, and the straight groove is connected to the straight pipe, so that the air guide pipe 6 can be directly connected to the gas transmission pipeline 4 with a small distance span, so that each air guide pipe 6 can be directly connected to the gas transmission pipeline 4 to deliver gas directly.

[0037] The second straight pipe 341 and the third straight pipe 342 are supported by the second platform 34 and supply gas to the inner ring trench 32.

[0038] A detachable connecting rod 61 is provided downwards in the air guide pipe 6, and an aeration pipe frame 62 is provided at the bottom of the connecting rod 61. The aeration pipe frame 62 is located at the bottom of the oxidation ditch 3.

[0039] The detachable connecting rod 61 can be connected to the air guide pipe 6 via a flange. Therefore, when the aeration pipe frame 62 fails and needs to be replaced, the detachable connecting rod 61 can be completely disassembled and lifted out of the water for replacement without shutting down the entire system for maintenance.

[0040] This pipeline layout ensures that all parts of the oxidation ditch are covered, resulting in high efficiency.

[0041] This invention utilizes the advantage of high dissolved oxygen in liftable tubular aerators, and the blower-assisted air delivery saves energy compared to traditional aeration devices, thereby reducing blower power and reducing air supply paths. At the same time, liftable tubular aerators have low maintenance costs, ensuring low-energy operation of oxidation ditch wastewater treatment plants.

[0042] Specifically, compared with the traditional method: ① the fan has a smaller air volume and power, which can be reduced by 43%;

[0043] ② The air delivery system has a small pipe diameter and low investment;

[0044] ③ The aeration system adopts a liftable design, resulting in low operation and maintenance costs;

[0045] ④ It increases sewage treatment capacity and has a low cost per ton of water treated.

[0046] It should be understood that numerous specific implementation decisions can be made during the development of any practical implementation, such as in any engineering or design project. Such development efforts may be complex and time-consuming, but for those skilled in the art who benefit from this disclosure, the development effort will be a routine work of design, manufacturing, and production without requiring much experimentation.

[0047] It should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A low-energy aeration system suitable for oxidation ditches, characterized in that: include, The fan (1), main pipeline (2), oxidation ditch (3) and gas transmission pipeline (4) set on the oxidation ditch (3) are provided. The fan (1) is connected to the main pipeline (2). The main pipeline (2) is connected to the gas transmission pipeline (4) through a bend pipe (5). The gas transmission pipeline (4) is connected to an aerator through a gas guide pipe (6). The aerator is set at the bottom of the oxidation ditch (3). The aerator is a liftable tubular aerator. The bent pipe (5) includes a horizontal section (51) and an inclined section (52), and the angle between the horizontal section (51) and the inclined section (52) is greater than 120°; The oxidation ditch (3) includes an outer ring ditch (31) and an inner ring ditch (32). A first platform (33) is provided between the outer ring ditch (31) and the inner ring ditch (32), and a second platform (34) is provided inside the inner ring ditch (32). The gas pipeline (4) includes a first bend (41), a first straight pipe (42) and a second bend (43) located outside the outer ring trench (31). The first bend (41) is connected to the horizontal section (51), and the first straight pipe (42) is connected to the first bend (41) and the second bend (43).

2. The low-energy aeration system suitable for oxidation ditches according to claim 1, characterized in that: The second platform (34) is provided with a second straight pipe (341) and a third straight pipe (342). The second straight pipe (341) is connected to the main pipeline (2) through a bend pipe (5), and the third straight pipe (342) is connected to the second straight pipe (341) through a third bend pipe (343).

3. The low-energy aeration system suitable for oxidation ditches according to claim 2, characterized in that: Both the outer groove (31) and the inner groove (32) are provided with horizontal air guide pipes (6), which are connected to the gas transmission pipeline (4).

4. The low-energy aeration system suitable for oxidation ditches according to claim 3, characterized in that: The air guide pipe (6) is provided with a detachable connecting rod (61) at the bottom, and an aeration pipe frame (62) is provided at the bottom of the connecting rod (61). The aeration pipe frame (62) is located at the bottom of the oxidation ditch (3).

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