Multilayer turbulent flow aeration tank

Abstract

The multi-layer turbulent flow aeration tank comprises an aeration main pipe and a plurality of layers of aeration branch pipes, the aeration branch pipes are arranged at intervals in the depth direction of a tank body and are respectively communicated with the aeration main pipe, and each aeration branch pipe comprises a longitudinal pipe and a transverse pipe, the longitudinal pipes are arranged along the length direction of the tank body and are communicated with the aeration main pipe, and the transverse pipes are symmetrically arranged on the two sides of the longitudinal pipes and are communicated at intervals; a pressure regulating valve and a ball valve are arranged at the input end of the longitudinal pipe. According to the multi-layer turbulent flow aeration tank disclosed by the utility model, the multi-layer aeration branch pipes are adopted and can operate simultaneously according to requirements, or one layer or two layers can be selected to operate according to the water depth in the tank, so that the use is more convenient and flexible. Meanwhile, the aeration device disclosed by the utility model not only can play an aeration role, but also can realize a turbulent flow stirring function through airflow, so that the uniformity of a water body is improved, pollutants are prevented from precipitating, the aeration holes are prevented from being blocked by precipitates, and the treatment efficiency of the aeration tank is improved.

Description

Technical Field

[0001] This utility model relates to the field of water treatment technology, and more specifically, to a multi-layer turbulent aeration tank. Background Technology

[0002] The aeration tank is the core component of the activated sludge wastewater treatment process. By forcibly adding oxygen, it promotes the reproduction of aerobic microorganisms, decomposing organic pollutants in the wastewater into inorganic or low-molecular-weight organic matter, thereby reducing the concentration of organic matter in the wastewater and achieving water resource recycling and sustainable development. To avoid uneven pollutant concentrations within the aeration tank, mixing equipment is usually installed to improve treatment efficiency.

[0003] Currently, the aeration devices in traditional aeration tanks are only located at the bottom of the tank, resulting in uneven oxygenation. The treatment efficiency decreases at high water levels, requiring an increase in wastewater retention time or an increase in the area of ​​the aeration tank. During the aeration process, particulate matter and flocculents in the wastewater will settle, easily clogging the air outlet of the aeration device, thereby further reducing the treatment efficiency.

[0004] Therefore, in order to improve the treatment efficiency of aeration tanks without increasing the wastewater retention time or the area of ​​the aeration tank, it is necessary to propose a multi-layer turbulent flow aeration tank, which is of great significance for improving aeration treatment efficiency. Utility Model Content

[0005] This invention provides a multi-layer turbulent flow aeration tank to solve the problems of poor oxygen supplementation effect and easy sedimentation of flocs during the aeration process in existing aeration tanks, which affect the treatment efficiency.

[0006] According to one aspect of the present invention, a multi-layer turbulent aeration tank is provided, comprising a tank body, an aeration main pipe, and multiple layers of aeration branch pipes. The aeration branch pipes are spaced apart along the depth direction of the tank body and are respectively connected to the aeration main pipe. Each aeration branch pipe includes a longitudinal pipe and a transverse pipe. The longitudinal pipe is arranged along the length direction of the tank body and is connected to the aeration main pipe. The transverse pipe is symmetrically arranged on both sides of the longitudinal pipe and is spaced apart and connected. A pressure regulating valve and a ball valve are provided at the input end of the longitudinal pipe.

[0007] Based on the above scheme, the preferred embodiment is that the aeration branch pipe includes an upper aeration branch pipe, a middle aeration branch pipe, and a lower aeration branch pipe.

[0008] Based on the above scheme, the preferred option is that the intermediate aeration branch pipe is located at 1 / 2 depth of the pool body.

[0009] Based on the above scheme, preferably, one end of the transverse pipe is connected to the aeration main pipe, and the other end of the transverse pipe is equipped with a plug.

[0010] Based on the above scheme, a check valve is preferably provided on the aeration main pipe.

[0011] Based on the above scheme, the preferred option is that the aeration main pipe is connected to a variable frequency aeration fan.

[0012] This invention relates to a multi-layer turbulent flow aeration tank, which employs multiple aeration branch pipes. These pipes can operate simultaneously as needed, or one or two layers can be selected for operation depending on the water depth, making it more convenient and flexible to use. Furthermore, the aeration device of this invention not only provides aeration but also achieves turbulent mixing through airflow, improving water homogeneity while preventing pollutant sedimentation and avoiding clogging of the aeration holes by sediment, thus enhancing the treatment efficiency of the aeration tank. Attached Figure Description

[0013] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying 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. In the drawings:

[0014] Figure 1 This is a top view of the multi-layer turbulent aeration tank of this utility model;

[0015] Figure 2 This invention relates to a multi-layer turbulent flow aeration tank. Figure 1 AA diagram;

[0016] Figure 3 For the present utility model Figure 1 BB image;

[0017] Figure 4 This is a cross-sectional view of the transverse tube of this utility model;

[0018] Explanation of icon numbers:

[0019] 1. Aeration main pipe; 11. Check valve; 2. Aeration branch pipe; 21. Longitudinal pipe; 22. Transverse pipe; 23. Pressure regulating valve; 24. Ball valve; 25. Upper aeration branch pipe; 26. Middle aeration branch pipe; 27. Lower aeration branch pipe; 28. Plug; 29. ​​Aeration hole; 30. Variable frequency aeration blower; 31. Check valve; 6. Tank body. Detailed Implementation

[0020] The specific embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are used to illustrate this utility model, but are not intended to limit its scope.

[0021] It should be understood that, when used in this specification and the appended claims, the term "comprising" indicates the presence of a descriptive feature, integral, step, operation, element, and / or component, but does not exclude the presence or addition of one or more other features, integrals, steps, operations, elements, components, and / or sets.

[0022] To keep the drawings concise, only the parts relevant to this invention are shown schematically in each figure, and they do not represent the actual structure of the product. Furthermore, for ease of understanding, in some figures, only one of the components with the same structure or function is schematically depicted, or only one is labeled. In this document, "one" not only means "only one," but can also mean "more than one."

[0023] It should also be further understood that the term “and / or” as used in this application specification and the appended claims means any combination of one or more of the associated listed items and all possible combinations, and includes such combinations.

[0024] In the embodiments shown in the accompanying drawings, the directional indications (such as up, down, left, right, front, and back) used to explain the structure and movement of the various components of this invention are relative rather than absolute. These descriptions are appropriate when these components are in the positions shown in the drawings. If the descriptions of the positions of these components change, these directional indications also change accordingly.

[0025] Furthermore, in the description of this application, the terms "first," "second," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0026] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the specific implementation methods of this utility model will be described below with reference to the accompanying drawings. Obviously, the drawings described below are merely some embodiments of this utility model. For those skilled in the art, other drawings and other implementation methods can be obtained based on these drawings without any creative effort.

[0027] Please see Figure 1 and combined Figure 2 and Figure 3As shown, this utility model discloses a multi-layer turbulent aeration tank, including an aeration main pipe 1 and multi-layer aeration branch pipes 2. The aeration branch pipes 2 are spaced apart along the depth direction of the tank body 6 and are respectively connected to the aeration main pipe 1. The aeration branch pipes 2 include longitudinal pipes 21 and transverse pipes 22. The longitudinal pipes 21 are arranged along the length direction of the tank body 6 and are connected to the aeration main pipe 1. The transverse pipes 22 are symmetrically arranged on both sides of the longitudinal pipes 21 and are spaced apart and connected to the longitudinal pipes 21. The input end of the longitudinal pipes 21 is provided with a pressure regulating valve 23 and a ball valve 24. The ball valve 24 is used to cut off the air source. The pressure regulating valve 23 is used to adjust the aeration air pressure according to the sewage treatment depth.

[0028] The aeration main pipe 1 is equipped with a check valve 11 and is connected to a variable frequency aeration fan 30. The variable frequency aeration fan 30 provides air to the aeration branch pipe 2, and the exhaust air pressure is determined according to the pool depth.

[0029] In one embodiment of the present invention, the aeration device of the present invention includes an upper aeration branch pipe 25, a middle aeration branch pipe 26 and a lower aeration branch pipe 27. The upper aeration branch pipe 25, the middle aeration branch pipe 26 and the lower aeration branch pipe 27 can operate simultaneously, or one or two layers can be selected to operate according to the water depth in the pool 6.

[0030] The multi-layer aeration branch pipe 2 of this utility model can not only play the role of aeration, but also realize the function of turbulent mixing through airflow, improve the homogeneity of water body while preventing pollutant sedimentation and avoiding sediment from clogging the aeration holes 29.

[0031] It is worth noting that the aeration branch pipe 26 of this utility model is located at 1 / 2 depth of the pool body 6.

[0032] During operation, when the sewage level in the tank is below 1 / 2 of the tank depth, ball valves 24 and 24 on the upper aeration branch pipe 25 and the middle aeration branch pipe 26 can be closed, and ball valve 24 can be opened, operating only the lower aeration branch pipe 27; when the sewage level is between 1 / 2 and 2 / 3 of the tank depth, ball valve 24 on the upper aeration main pipe 1 can be closed, and ball valves 24 and 24 can be opened, operating the middle and lower aeration devices; when the sewage level in the tank is above 2 / 3 of the tank depth, ball valves 24, 24 and 24 can be opened, operating the upper aeration branch pipe 25, the middle aeration branch pipe 26 and the lower aeration branch pipe 27.

[0033] In this invention, each layer of the transverse pipe 22 is provided with two rows of spaced aeration holes 29 in the opposite direction of water flow. The aeration holes 29 are arranged along the length of the transverse pipe 22. The airflow sprayed from the aeration holes 29 can increase the dissolved oxygen in the water; disturb the water to create turbulence, thereby achieving the effect of stirring and homogenizing; reduce the water flow velocity and increase the reaction time of the sewage; prevent pollutants from settling and avoid clogging the aeration holes 29 with sediment.

[0034] Furthermore, it should be noted that one end of the transverse pipe 22 of this utility model is connected to the aeration main pipe, and the other end of the transverse pipe 22 is equipped with a plug 28.

[0035] This utility model discloses a multi-layer turbulent aeration tank, which adopts multi-layer aeration branch pipes 2. It can operate simultaneously as needed, or select one or two layers to operate according to the water depth in the tank, making it more convenient and flexible to use. Compared with traditional aeration tanks, the new aeration tank can deepen the tank body 6, reducing the footprint of the aeration tank.

[0036] Meanwhile, the aeration device of this utility model can not only play the role of aeration, but also achieve the function of turbulent mixing through airflow, improve the homogeneity of water body while preventing pollutant sedimentation, avoid sediment clogging the aeration holes 29, and improve the treatment efficiency of its aeration tank.

[0037] Finally, the method described in this application is merely a preferred embodiment and is not intended to limit the scope of protection of this utility model. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this utility model should be included within the scope of protection of this utility model.

Claims

1. A multi-layer turbulent aeration tank, characterized in that, The system includes a tank body, an aeration main pipe, and multiple layers of aeration branch pipes. The aeration branch pipes are spaced apart along the depth direction of the tank body and are connected to the aeration main pipe. Each aeration branch pipe includes a longitudinal pipe and a transverse pipe. The longitudinal pipe is laid out along the length direction of the tank body and is connected to the aeration main pipe. The transverse pipe is symmetrically arranged on both sides of the longitudinal pipe and is spaced apart. The input end of the longitudinal pipe is equipped with a pressure regulating valve and a ball valve.

2. The multi-layer turbulent aeration tank as described in claim 1, characterized in that, The aeration branch pipe has three layers, namely the upper aeration branch pipe, the middle aeration branch pipe, and the lower aeration branch pipe.

3. A multi-layer turbulent aeration tank as described in claim 2, characterized in that, The aeration branch pipe is located at 1 / 2 depth of the pool.

4. A multi-layer turbulent aeration tank as described in claim 1, characterized in that, One end of the transverse pipe is connected to the aeration main pipe, and the other end of the transverse pipe is equipped with a plug.

5. A multi-layer turbulent aeration tank as described in claim 1, characterized in that, A check valve is installed on the aeration main pipe.

6. A multi-layer turbulent aeration tank as described in claim 5, characterized in that, The aeration main pipe is connected to a variable frequency aeration fan.

Images