Aeration device capable of realizing self-cleaning of microporous aeration hose and aeration tank

Abstract

The aeration device comprises a first air supply main pipe and a second air supply main pipe which are connected in parallel, each air supply main pipe is provided with a main pipe switch valve, each air supply main pipe is connected with a plurality of air supply branch pipes, and each air supply branch pipe is provided with a main pipe switch valve. The bottom of each air supply branch pipe is provided with an aeration hose made of an elastic material, the aeration hose is provided with an aeration hole, a branch pipe switch valve is arranged between each air supply main pipe and the corresponding air supply branch pipe, each air supply branch pipe is provided with a blockage detection sensor, and the blockage detection sensor is a pressure sensor or a flow sensor. Each air supply branch pipe is connected with a blow-down pipe, and a blow-down pipe switch valve is arranged on each blow-down pipe. According to the utility model, the problem of air source waste caused by the fact that a group of aeration hoses must be flushed simultaneously in the prior art is solved.

Description

Technical Field

[0001] The utility model relates to a sewage treatment device, in particular to an aeration device and an aeration tank capable of realizing self-cleaning of microporous aeration hoses. Background Technique

[0002] In order to enable microorganisms in water to obtain sufficient dissolved oxygen, people use a blower to compress air or inflate water through surface agitation. The air-blowing device for providing oxygen to microorganisms, as well as the supporting pipelines, fixing devices, etc., are collectively referred to as an aeration device.

[0003] The bottom aeration device is a relatively common aeration device. Generally, the bottom aeration device introduces the compressed air of the blower through the air-blowing branch pipe, and diffuses the oxygen-containing air into the air through the aerator installed at the bottom of the aeration tank, so that the microorganisms in the aeration tank obtain oxygen. Existing such aeration devices, such as a "self-cleaning aeration device and aeration tank" disclosed in Chinese Patent CN203683210U, include a main air supply pipe and an odd-numbered row main air supply pipe and an even-numbered row main air supply pipe connected thereto. A plurality of air supply branch pipes are connected to both the odd-numbered row main air supply pipe and the even-numbered row main air supply pipe. Control valves and vent valves are provided on both the odd-numbered row main air supply pipe and the even-numbered row main air supply pipe. The low ends of each air supply branch pipe are connected with an aeration hose. The aeration hose is made of an elastic material, and aeration holes are distributed on the aeration hose.

[0004] The size of the aeration holes is relatively small and is prone to blockage during use. Therefore, it is necessary to clean the blocked aeration holes in time. When it is necessary to clean the aeration hoses connected to the odd-numbered row main air supply pipe, first close the control valve on the odd-numbered row main air supply pipe, open the vent valve on the odd-numbered row main air supply pipe. Under the action of water pressure, the aeration hoses connected to the odd-numbered row main air supply pipe are flattened, and the gas in the aeration hoses is discharged into the atmosphere through the vent valve. The aeration holes on the aeration hoses become smaller, and the dirt in the aeration holes is also pressed smaller. Subsequently, open the control valve connected to the odd-numbered row main air supply pipe again, close the vent valve on the odd-numbered row main air supply pipe, and the blower supplies air to the odd-numbered row main air supply pipe. The corresponding aeration hoses re-expand, the size of the aeration holes becomes larger, and the dirt in the aeration holes will be washed out; by the same token, the cleaning of the aeration hoses connected to the odd-numbered row main air supply pipe can be completed.

[0005] However, the existing such aeration device has the following problems: Each time of cleaning, it is necessary to clean all the aeration hoses connected to the odd-numbered row main air supply pipe or the even-numbered row main air supply pipe at the same time. However, in actual use, not all the aeration hoses need to be cleaned at the same time. Such an operation not only causes waste of the air source, but also during cleaning, the corresponding aeration hoses cannot perform the aeration work, and it will also reduce the oxygen supply to the aeration tank. Summary of the Utility Model

[0006] The purpose of the present utility model is to provide an aeration device capable of realizing self - flushing of microporous aeration hoses, so as to solve the problem of waste of gas source caused by the necessity of flushing a group of aeration hoses simultaneously in the prior art; the purpose of the present utility model is also to provide an aeration tank using this aeration device.

[0007] To solve the above - mentioned technical problems, the technical solution of an aeration device in the present utility model is as follows:

[0008] An aeration device capable of realizing self - cleaning of microporous aeration hoses, including a first air supply main pipe and a second air supply main pipe arranged in parallel. A main pipe switch valve is provided on each air supply main pipe. A plurality of air supply branch pipes are connected to each air supply main pipe. An aeration hose made of elastic material is provided at the bottom of each air supply branch pipe. Aeration holes are provided on the aeration hose. A branch pipe switch valve is provided between each air supply main pipe and the corresponding air supply branch pipe. A blockage detection sensor is provided on each air supply branch pipe. The blockage detection sensor is a pressure sensor or a flow sensor. A vent pipe is connected to each air supply branch pipe. A vent pipe switch valve is provided on the vent pipe.

[0009] Furthermore, the air supply branch pipes are arranged vertically, the vent pipes are coaxially connected to the upper ends of the corresponding air supply branch pipes, and the vent pipe switch valves are provided at the upper ends of the air supply branch pipes.

[0010] Furthermore, the upper ends of each air supply branch pipe are connected to the corresponding air supply main pipe through a horizontal pipe, and the branch pipe switch valves are provided on the horizontal pipes.

[0011] Furthermore, the air supply branch pipes connected to the first air supply main pipe are called first air supply branch pipes, and the air supply branch pipes connected to the second air supply main pipe are called second air supply branch pipes. The first air supply branch pipes and the second air supply branch pipes are arranged in a cross - pattern, and the heights of the vent pipe switch valves on the vent pipes connected to the first air supply branch pipes are different from those of the vent valves connected to the second air supply branch pipes.

[0012] The beneficial effects of the present utility model are as follows: In the present utility model, a blockage detection sensor and a vent pipe are connected to each air supply branch pipe. When the blockage detection sensor detects that the aeration hose connected to a certain air supply branch pipe is blocked, the branch pipe switch valve on the corresponding air supply branch pipe is closed. Under the action of water pressure, the gas in the blocked aeration hose is discharged through the vent valve on the corresponding air supply branch pipe. Only the blocked aeration hose is deflated. Then, the branch pipe switch valve on the corresponding air supply branch pipe is opened, and gas is introduced into the deflated aeration hose, so that only the blocked aeration hose can be flushed, and the unblocked aeration hoses do not need to be flushed, which can avoid waste of gas source and also minimize the aeration loss caused during the flushing process as much as possible. Description of the Drawings

[0013] By reading the following detailed description with reference to the accompanying drawings, the above and other objects, features, and advantages of the exemplary embodiments of the present disclosure will become readily understandable. In the drawings, several embodiments of the present disclosure are shown by way of illustration and not limitation, and like or corresponding reference numerals denote like or corresponding parts, wherein:

[0014] Figure 1 is a schematic structural diagram of an embodiment of the aeration device in the present utility model;

[0015] Figure 2 is Figure 1 the enlarged view of part A in;

[0016] 1. Aeration blower; 2. First main air supply pipe; 3. Second main air supply pipe; 4. First main pipe switch valve; 5. Second main pipe switch valve; 6. First vent pipe; 7. First vent pipe switch valve; 8. Second vent pipe; 9. Second vent pipe switch valve; 10. First air supply branch pipe; 11. Second air supply branch pipe; 12. Blockage detection sensor; 13. Aeration hose; 14. Horizontal pipe; 15. Branch pipe switch valve. Detailed implementation manners

[0017] For the convenience of understanding the present utility model, the present utility model will be described in more detail below with reference to the accompanying drawings and specific embodiments. The preferred embodiments of the present utility model are shown in the drawings. However, the present utility model can be implemented in many different forms and is not limited to the embodiments described in this specification. On the contrary, the purpose of providing these embodiments is to make the understanding of the disclosure content of the present utility model more thorough and comprehensive.

[0018] It should be noted that unless otherwise defined, all technical and scientific terms used in this specification have the same meaning as commonly understood by those skilled in the technical field to which the present utility model belongs. The terms used in the specification of the present utility model are only for the purpose of describing specific embodiments and are not used to limit the present utility model.

[0019] An embodiment of an aeration device capable of realizing self-flushing of a microporous aeration hose in the present utility model is as Figures 1 - 2 shown:

[0020] It includes an aeration blower 1. The air outlet of the aeration blower 1 is connected to a first main air supply pipe 2 and a second main air supply pipe 3 which are arranged in parallel. A main pipe switch valve is provided on each main air supply pipe. The main pipe switch valve connected to the air inlet end of the first main air supply pipe is called the first main pipe switch valve 4, and the main pipe switch valve connected to the air inlet end of the second main air supply pipe is called the second main pipe switch valve 5.

[0021] A plurality of air supply branch pipes arranged in parallel are connected to each main air supply pipe. The air supply branch pipes connected to the first main air supply pipe are called the first air supply branch pipes 10, and the air supply branch pipes connected to the second main air supply pipe are called the second air supply branch pipes 11. Aeration flexible hoses 13 made of elastic materials are provided at the bottoms of the air supply branch pipes. Aeration holes are provided on the aeration flexible hoses 13. The aeration flexible hoses belong to the prior art and will not be elaborated here.

[0022] The upper ends of the respective air supply branch pipes are respectively connected to the corresponding main air supply pipes through horizontal pipes 14. Branch pipe on-off valves 15 are provided on each horizontal pipe. The branch pipe on-off valve connected to the first air supply branch pipe is called the first branch pipe on-off valve, and the branch pipe on-off valve connected to the second air supply branch pipe is called the second branch pipe on-off valve. Blockage detection sensors 12 are provided on each air supply branch pipe. The blockage detection sensors are pressure sensors (or flow sensors). When the aeration holes of the aeration flexible hoses are blocked, the pressure in the corresponding air supply branch pipes will change. By detecting this pressure change with the pressure sensors, it can be determined that the corresponding aeration flexible hoses are blocked.

[0023] Emptying pipes are connected to each air supply branch pipe. Emptying pipe on-off valves are provided on the emptying pipes. The emptying pipe connected to the first air supply branch pipe is called the first emptying pipe 6, and the emptying pipe connected to the second air supply branch pipe is called the second emptying pipe 8. The emptying valve on the first emptying pipe is called the first emptying pipe on-off valve 7, and the emptying valve on the second emptying pipe is called the second emptying pipe on-off valve 9.

[0024] The air supply branch pipes are arranged vertically, and the emptying pipes are coaxially connected to the upper ends of the corresponding air supply branch pipes. The emptying pipe on-off valves are provided at the upper ends of the air supply branch pipes.

[0025] The first air supply branch pipes and the second air supply branch pipes are arranged in a cross pattern. That is to say, in the left-right direction, the first air supply branch pipes, the second air supply branch pipes, the first air supply branch pipes... are arranged in sequence. The heights of the first emptying pipes are different from those of the second emptying pipes. The heights of all the first emptying pipe on-off valves are the same, and the heights of all the second emptying pipe on-off valves are the same. This helps to reduce the space required for installation in the left-right direction.

[0026] In this embodiment, a blockage detection sensor and a vent pipe shut-off valve are provided on each air supply branch pipe. Therefore, each aeration hose connected to each air supply branch pipe can be independently detected and independently flushed. Specifically, when a certain aeration hose is blocked, the pressure sensor on the corresponding air supply branch pipe detects a pressure change, determines that the corresponding aeration hose is blocked, and then the branch pipe shut-off valve on the corresponding air supply branch pipe can be closed, and the vent pipe shut-off valve on the corresponding air supply branch pipe can be opened to realize the flattening of the blocked aeration hose under the action of water pressure. Subsequently, the branch pipe shut-off valve on the corresponding air supply branch pipe is opened, and the vent pipe shut-off valve on the corresponding air supply branch pipe is closed to inflate the blocked aeration hose, realizing the flushing of the blocked aeration hose. This embodiment can realize the independent flushing of a single aeration hose, avoiding the problem of waste in the flushing of those non-blocked aeration hoses when multiple aeration hoses are flushed simultaneously in the prior art, and at the same time, it can also reduce the problem of excessive reduction in the aeration volume caused by the simultaneous flushing of multiple aeration hoses.

[0027] An example of the aeration tank is as Figures 1 - 2 shown: The aeration tank includes a tank body and an aeration device. The aeration device is the same as each of the above-mentioned aeration device embodiments and will not be described in detail here.

[0028] In the above description of this specification, unless otherwise clearly specified and limited, terms such as "fixed", "installed", "connected" or "coupled" should be understood in a broad sense. For example, with respect to the term "connected", it can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, or it can be the communication inside two elements or the interaction relationship between two elements. Therefore, unless otherwise clearly limited in this specification, those skilled in the art can understand the specific meanings of the above terms in the present invention according to specific circumstances.

[0029] According to the above description of this specification, those skilled in the art can also understand the following terms used, such as "upper", "lower", "front", "rear", "left", "right", "length", "width", "thickness", "vertical", "horizontal", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", "center", "longitudinal", "lateral", "clockwise" or "counterclockwise", etc. Terms indicating orientation or position relationship are based on the orientation or position relationship shown in the drawings of this specification. It is only for the purpose of facilitating the description of the solution of the present invention and simplifying the description, rather than explicitly or implicitly indicating that the device or element involved must have the specific orientation, be constructed and operate in the specific orientation. Therefore, the above terms of orientation or position relationship cannot be understood or interpreted as a limitation to the solution of the present invention.

[0030] In addition, the terms "first" or "second" used in this specification, which are terms referring to numbers or ordinals, are only for descriptive purposes and should not be construed as explicitly or implicitly indicating relative importance or implicitly specifying the quantity of the indicated technical features. Thus, features defined with "first" or "second" may explicitly or implicitly include at least one such feature. In the description of this specification, the meaning of "a plurality of" is at least two, such as two, three or more, etc., unless otherwise specifically defined.

[0031] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements on some of the technical features; and these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. An aeration device capable of realizing self-cleaning of a microporous aeration hose, comprising a first air supply main pipe and a second air supply main pipe connected in parallel, each air supply main pipe is provided with a main switch valve, each air supply main pipe is connected with a plurality of air supply branches, an aeration hose made of elastic material is provided at the bottom of each air supply branch pipe, and an aeration hole is provided on the aeration hose, characterized in that: A branch pipe switch valve is provided between each gas supply main pipe and the corresponding gas supply branch pipe, and a blockage detection sensor is provided on each gas supply branch pipe. The blockage detection sensor is a pressure sensor or a flow sensor. Each gas supply branch pipe is connected to a vent pipe, and a vent pipe switch valve is provided on the vent pipe.

2. The aeration device according to claim 1, characterized in that: The gas supply branch pipe is arranged vertically, the vent pipe is coaxially connected to the upper end of the corresponding gas supply branch pipe, and the vent pipe switch valve is arranged at the upper end of the gas supply branch pipe.

3. The aeration device according to claim 2, characterized in that: The upper end of each gas supply branch pipe is connected to the corresponding gas supply main pipe through a transverse pipe, and the branch pipe switch valve is arranged on the transverse pipe.

4. The aeration device according to claim 3, characterized in that: The gas supply branch connected to the first gas supply main is called the first gas supply branch, and the gas supply branch connected to the second gas supply main is called the second gas supply branch. The first gas supply branch and the second gas supply branch are arranged crosswise, and the vent pipe switch valve on the vent pipe connected to the first gas supply branch is at a different height from the vent valve connected to the second gas supply branch.

5. An aeration tank, comprising a tank body and an aeration device, wherein the aeration device comprises a first air supply main pipe and a second air supply main pipe connected in parallel, each air supply main pipe is provided with a main switch valve, each air supply main pipe is connected with a plurality of air supply branches, an aeration hose made of elastic material is provided at the bottom of each air supply branch pipe, and an aeration hole is provided on the aeration hose, characterized in that: A branch pipe switch valve is provided between each gas supply main pipe and the corresponding gas supply branch pipe, and a blockage detection sensor is provided on each gas supply branch pipe. The blockage detection sensor is a pressure sensor or a flow sensor. Each gas supply branch pipe is connected to a vent pipe, and a vent pipe switch valve is provided on the vent pipe.

6. The aeration tank according to claim 5, characterized in that: The gas supply branch pipe is arranged vertically, the vent pipe is coaxially connected to the upper end of the corresponding gas supply branch pipe, and the vent pipe switch valve is arranged at the upper end of the gas supply branch pipe.

7. The aeration tank according to claim 6, characterized in that: The upper end of each gas supply branch pipe is connected to the corresponding gas supply main pipe through a transverse pipe, and the branch pipe switch valve is arranged on the transverse pipe.

8. The aeration tank according to claim 7, characterized in that: The gas supply branch connected to the first gas supply main is called the first gas supply branch, and the gas supply branch connected to the second gas supply main is called the second gas supply branch. The first gas supply branch and the second gas supply branch are arranged crosswise, and the vent pipe switch valve on the vent pipe connected to the first gas supply branch is at a different height from the vent valve connected to the second gas supply branch.

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