Aeration device for biochemical treatment of wastewater

Abstract

The utility model relates to an aeration device for biochemical treatment of wastewater. The aeration device comprises an air inlet pipe, an air outlet pipe, a plurality of aeration hoses, a first aeration branch pipe, a second aeration branch pipe, a third aeration branch pipe and a fourth aeration branch pipe, wherein the first aeration branch pipe and the second aeration branch pipe are vertically arranged up and down, and the lower sections of the first aeration branch pipe and the second aeration branch pipe are positioned in an aeration tank; a vent hole is formed in the third inner pipe, and the inner top wall of the aeration hose is tightly connected with a shielding piece which is used for shielding the vent hole when the aeration hose is in a flat state or opening the vent hole when the aeration hose is in an expanded state. According to the aeration device, alternate aeration can be carried out on odd and even aeration hoses, self-washing aeration is realized, and sludge in an aeration tank can be prevented from entering the aeration hoses to a certain extent when the aeration hoses are in a flat state.

Description

Technical Field

[0001] This utility model relates to the field of aeration device technology, and in particular to an aeration device for wastewater biochemical treatment. Background Technology

[0002] Aerobic biochemical reactions are crucial in wastewater treatment processes because they effectively remove organic matter, nitrogen, and phosphorus from water, offering both cost-effectiveness and environmental protection. Furthermore, aerobic biochemical reactions also play a vital role in industrial wastewater treatment. Industrial wastewater has a complex composition, containing many substances that are difficult to biodegrade. Through pretreatment and subsequent biochemical treatment, the toxicity and pollution levels of wastewater can be effectively reduced, meeting discharge standards.

[0003] In water treatment processes, aeration equipment is a key component in biological pretreatment of water supply and biological treatment of wastewater. Its function is to transfer oxygen from the air into the liquid of the aeration tank through specific technical measures, supplying the oxygen needed for aerobic biological metabolism, while simultaneously ensuring thorough and uniform mixing of the water within the tank, thus achieving the purpose of biological treatment. Submersible aerators are placed in the middle or bottom layer of the water being aerated, introducing air into the water to mix with it, completing the transfer of oxygen from the gas phase to the liquid phase.

[0004] Existing aeration devices generally use aeration hoses, which are prone to sludge entering the aeration hose when in a flat state, thus affecting the normal use of the aeration hose.

[0005] Therefore, in this utility model patent application, the applicant has carefully researched an aeration device for wastewater biochemical treatment to solve the above problems. Utility Model Content

[0006] The present invention addresses the shortcomings of the prior art and aims to provide an aeration device for wastewater biochemical treatment. This device enables alternating aeration with odd and even numbers of aeration hoses, achieves self-washing aeration, and can also prevent sludge from entering the aeration hoses when they are in a flat state.

[0007] To achieve the above objectives, the present invention adopts the following technical solution:

[0008] An aeration device for wastewater biochemical treatment includes an air inlet pipe, an air outlet pipe, several aeration hoses, a first aeration branch pipe, a second aeration branch pipe, a third aeration branch pipe, and a fourth aeration branch pipe, which are arranged vertically up and down and whose lower part is located in an aeration tank.

[0009] The distance between the first aeration branch pipe and the second aeration branch pipe is set, and the distance between the third aeration branch pipe and the fourth aeration branch pipe is set.

[0010] The inlet end of the air inlet pipe is used to connect to the air pump, and the outlet end of the air inlet pipe is connected to one end of the first aeration branch pipe. The other end of the first aeration branch pipe is connected to the third aeration branch pipe. All the third aeration branch pipes are provided with a first inner air pipe and a second inner air pipe arranged vertically and staggered. The first inner air pipe and the second inner air pipe both extend into the first aeration branch pipe and communicate with the first aeration branch pipe. Solenoid valves are provided on the first inner air pipe and the second inner air pipe located in the first aeration branch pipe.

[0011] The inlet end of the air outlet pipe is connected to one end of the second aeration branch pipe, and the other end of the second aeration branch pipe is connected to the fourth aeration branch pipe.

[0012] Several aeration supports are configured for each aeration hose. Each aeration hose is arranged horizontally from left to right. All aeration hoses are located between the third aeration branch pipe and the fourth aeration branch pipe, and the front and rear spacing of all aeration hoses is set.

[0013] The left and right ends of the aeration hose are connected to the third aeration branch pipe and the fourth aeration branch pipe, respectively. The aeration hose is provided with aeration micro-holes arranged at intervals along its extension direction. A third inner tube is provided inside the aeration hose. The left and right ends of the third inner tube extend into the third aeration branch pipe and the fourth aeration branch pipe, respectively, and are connected to the third aeration branch pipe and the fourth aeration branch pipe. The left end of the odd-numbered aeration hoses from front to back extends into the third aeration branch pipe and is connected to the first inner air pipe. The left end of the even-numbered aeration hoses from front to back extends into the third aeration branch pipe and is connected to the second inner air pipe.

[0014] The third inner tube has a vent hole, and the inner top wall of the aeration hose is tightly connected with a shield for covering the vent hole in the flat state or opening the vent hole in the expanded state.

[0015] As a preferred embodiment, the first aeration branch pipe and the second aeration branch pipe are arranged side by side with a spacing between them.

[0016] As a preferred embodiment, the third and fourth aeration branch pipes are arranged side by side with a spacing between them.

[0017] As a preferred option, all aeration hoses are spaced side-by-side.

[0018] As a preferred embodiment, the aeration support includes a fixed ring through which an aeration hose passes and a support portion for connecting to the bottom wall of the aeration tank, the support portion being connected to the fixed ring.

[0019] As a preferred embodiment, an air-blocking valve is provided inside the air outlet pipe.

[0020] Compared with the prior art, this utility model has obvious advantages and beneficial effects. Specifically, it mainly uses solenoid valves installed on the first and second inner air pipes located in the first aeration branch pipe to realize alternating aeration of odd and even number aeration hoses and achieve self-washing aeration. In particular, the shielding part can prevent sludge in the aeration tank from entering the aeration hose when it is in a flat state.

[0021] To more clearly illustrate the structural features and effects of this utility model, the following detailed description is provided in conjunction with the accompanying drawings and specific embodiments. Attached Figure Description

[0022] Figure 1 This is a front view of an embodiment of the present utility model;

[0023] Figure 2 This is a top view of an embodiment of the present utility model;

[0024] Figure 3 This is another top view of an embodiment of the present utility model (mainly showing the first inner air tube, the second inner air tube, and the third inner air tube);

[0025] Figure 4 This is a first partial cross-sectional view of an embodiment of the present invention (mainly showing the aeration hose in an expanded state);

[0026] Figure 5 This is a second partial sectional view of an embodiment of the present invention (mainly showing the aeration hose in a flat state).

[0027] Explanation of icon numbers:

[0028] 11. Inlet pipe; 12. Outlet pipe; 121. Air stop valve

[0029] 21. First aeration branch pipe; 22. Second aeration branch pipe

[0030] 23. Third aeration branch pipe

[0031] 231. First endotracheal tube; 232. Second endotracheal tube

[0032] 24. Fourth aeration branch pipe

[0033] 30. Aeration support frame

[0034] 31. Fixing ring; 32. Support part

[0035] 40. Aeration hose 401. Aeration micropores

[0036] 41. Third inner tube; 411. Vent hole

[0037] 42. Masking plate. Detailed Implementation

[0038] The present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0039] like Figures 1 to 5 As shown, an aeration device for wastewater biochemical treatment includes an air inlet pipe 11, an air outlet pipe 12, several aeration hoses 40, a first aeration branch pipe 21 and a second aeration branch pipe 22 arranged vertically with their lower sections located in an aeration tank, and a third aeration branch pipe 23 and a fourth aeration branch pipe 24 arranged longitudinally in front and behind and located in an aeration tank.

[0040] The inlet end of the air inlet pipe 11 is used to connect to the air pump, and the outlet end of the air inlet pipe 11 is connected to one end of the first aeration branch pipe 21.

[0041] The distance between the first aeration branch pipe 21 and the second aeration branch pipe 22 is set, preferably, the first aeration branch pipe 21 and the second aeration branch pipe 22 are set side by side with a distance between them.

[0042] The other end of the first aeration branch pipe 21 is connected to the third aeration branch pipe 23. Preferably, the third aeration branch pipe 23 and the fourth aeration branch pipe 24 are arranged side by side with a distance between them.

[0043] The third aeration branch pipe 23 and the fourth aeration branch pipe 24 are spaced apart; each of the third aeration branch pipes 23 is provided with a first inner air pipe 231 and a second inner air pipe 232 arranged vertically and staggered. The first inner air pipe 231 and the second inner air pipe 232 both extend into the first aeration branch pipe 21 and communicate with the first aeration branch pipe 21. Solenoid valves 233 are provided on the first inner air pipe 231 and the second inner air pipe 232 located in the first aeration branch pipe 21.

[0044] The inlet end of the air outlet pipe 12 is connected to one end of the second aeration branch pipe 22. In this embodiment, an air-blocking valve is provided inside the air outlet pipe 12. The other end of the second aeration branch pipe 22 is connected to the fourth aeration branch pipe 24.

[0045] Each aeration hose 40 is equipped with several aeration supports 30. In this embodiment, the aeration support 30 includes a fixed ring 31 through which the aeration hose 40 passes and a support portion 32 for connecting to the bottom wall of the aeration tank. The support portion 32 is connected to the fixed ring 31. The outer diameter of the aeration hose 40 in its fully expanded state is smaller than the inner diameter of the fixed ring 31.

[0046] Each aeration hose 40 is arranged laterally from left to right. In this embodiment, all aeration hoses 40 are arranged side by side with spacing between them. All aeration hoses 40 are located between the third aeration branch pipe 23 and the fourth aeration branch pipe 24, and all aeration hoses 40 are arranged with front and rear spacing between them.

[0047] The left and right ends of the aeration hose 40 are connected to the third aeration branch pipe 23 and the fourth aeration branch pipe 24, respectively. The aeration hose 40 is provided with aeration micropores 401 arranged at intervals along its extension direction. A third inner tube 41 is provided inside the aeration hose 40. The left and right ends of the third inner tube 41 extend into the third aeration branch pipe 23 and the fourth aeration branch pipe 24, respectively, and are connected to the third aeration branch pipe 23 and the fourth aeration branch pipe 24. The left end of the odd-numbered aeration hoses 40 extends into the third aeration branch pipe 23 and is connected to the first inner air pipe 231. The left end of the even-numbered aeration hoses 40 extends into the third aeration branch pipe 23 and is connected to the second inner air pipe 232.

[0048] The third inner tube 41 is provided with a vent hole 411, and the inner top wall of the aeration hose 40 is tightly connected with a shielding plate 42 for covering the vent hole 411 in the flat state or opening the vent hole 411 in the expanded state.

[0049] The following explanation will take the example of solenoid valve 233 being installed on the first internal air pipe 231:

[0050] When the first inner air pipe 231 needs to be ventilated, simply open the solenoid valve 233 of the first inner air pipe 231 and close the solenoid valve 233 of the second inner air pipe 232. At this time, the air from the air pump passes sequentially through the first aeration branch pipe 21, the first inner air pipe 231 of the third aeration branch pipe 23, the third inner air pipe of the odd-numbered aeration hose 40, the fourth aeration branch pipe 24, the second aeration branch pipe 22 and the air outlet pipe 12.

[0051] When the second inner air pipe 232 needs to be ventilated, simply open the solenoid valve 233 of the second inner air pipe 232 and close the solenoid valve 233 of the first inner air pipe 231. At this time, the air from the air pump passes sequentially through the first aeration branch pipe 21, the second inner air pipe 232 of the third aeration branch pipe 23, the third inner air pipe of the even-numbered aeration hose 40, the fourth aeration branch pipe 24, the second aeration branch pipe 22 and the air outlet pipe 12.

[0052] Whether it is an odd-numbered aeration hose 40 or an even-numbered aeration hose 40, when air is introduced, the air in the third inner air tube will first blow the shield 42 outward through the air vent 411, thereby opening the air vent 411 and entering the aeration tank through the aeration micropores 401.

[0053] When the third inner air pipe inside the aeration hose 40 is blocked from air, it will flatten under the action of water pressure, and the shield 42 will block the air hole 411.

[0054] The key design feature of this utility model is that it mainly uses solenoid valves installed on the first and second inner air pipes located in the first aeration branch pipe to realize alternating aeration of odd and even number of aeration hoses and achieve self-washing aeration. In particular, the shielding part can prevent sludge in the aeration tank from entering the aeration hose when it is in a flat state.

[0055] The above description is merely a preferred embodiment of the present utility model and does not constitute any limitation on the technical scope of the present utility model. Therefore, any minor modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present utility model shall still fall within the scope of the technical solution of the present utility model.

Claims

1. An aeration device for wastewater biochemical treatment, characterized in that: It includes an air inlet pipe, an air outlet pipe, several aeration hoses, a first aeration branch pipe and a second aeration branch pipe that are arranged vertically up and down with their lower sections located in the aeration tank, and a third aeration branch pipe and a fourth aeration branch pipe that are arranged longitudinally from front to back and located in the aeration tank. The distance between the first aeration branch pipe and the second aeration branch pipe is set, and the distance between the third aeration branch pipe and the fourth aeration branch pipe is set. The inlet end of the air inlet pipe is used to connect to the air pump, and the outlet end of the air inlet pipe is connected to one end of the first aeration branch pipe. The other end of the first aeration branch pipe is connected to the third aeration branch pipe. All the third aeration branch pipes are provided with a first inner air pipe and a second inner air pipe arranged vertically and staggered. The first inner air pipe and the second inner air pipe both extend into the first aeration branch pipe and communicate with the first aeration branch pipe. Solenoid valves are provided on the first inner air pipe and the second inner air pipe located in the first aeration branch pipe. The inlet end of the air outlet pipe is connected to one end of the second aeration branch pipe, and the other end of the second aeration branch pipe is connected to the fourth aeration branch pipe. Several aeration supports are configured for each aeration hose. Each aeration hose is arranged horizontally from left to right. All aeration hoses are located between the third aeration branch pipe and the fourth aeration branch pipe, and the front and rear spacing of all aeration hoses is set. The left and right ends of the aeration hose are connected to the third aeration branch pipe and the fourth aeration branch pipe, respectively. The aeration hose is provided with aeration micro-holes arranged at intervals along its extension direction. A third inner tube is provided inside the aeration hose. The left and right ends of the third inner tube extend into the third aeration branch pipe and the fourth aeration branch pipe, respectively, and are connected to the third aeration branch pipe and the fourth aeration branch pipe. The left end of the odd-numbered aeration hoses from front to back extends into the third aeration branch pipe and is connected to the first inner air pipe. The left end of the even-numbered aeration hoses from front to back extends into the third aeration branch pipe and is connected to the second inner air pipe. The third inner tube has a vent hole, and the inner top wall of the aeration hose is tightly connected with a shield for covering the vent hole in the flat state or opening the vent hole in the expanded state.

2. The aeration device for wastewater biochemical treatment according to claim 1, characterized in that: The first aeration branch pipe and the second aeration branch pipe are arranged side by side with a spacing between them.

3. The aeration device for wastewater biochemical treatment according to claim 1, characterized in that: The third and fourth aeration branch pipes are arranged side by side with a certain spacing.

4. The aeration device for wastewater biochemical treatment according to claim 1, characterized in that: All aeration hoses are spaced side-by-side.

5. The aeration device for wastewater biochemical treatment according to claim 1, characterized in that: The aeration support includes a fixed ring through which an aeration hose passes and a support portion for connecting to the bottom wall of the aeration tank, the support portion being connected to the fixed ring.

6. The aeration device for wastewater biochemical treatment according to claim 1, characterized in that: An air-blocking valve is installed inside the air outlet pipe.

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