Organic wastewater aeration system

Abstract

This invention discloses an organic wastewater aeration system, comprising: an aeration pipeline, an air pump, and aeration heads. The output end of the air pump is connected to the aeration pipeline, which is connected to a plurality of aeration heads. Each aeration head includes: a connecting head, a diffuser cover, a one-way valve plate, a valve stem, and a spring. One end of the connecting head is connected to the aeration pipeline, and the other end of the connecting head forms an annular step. A through hole for gas passage is opened in the middle of the annular step. A diffuser cover is placed on the outer surface of the annular step. A movable one-way valve plate is disposed between the diffuser cover and the annular step. The one-way valve plate is fixed to the valve stem, and a spring is connected between the valve stem and the connecting head. The spring is used to keep the one-way valve plate pressed tightly against the annular step. The outer diameter of the annular step is d1, and the diameter of the through hole in the annular adjustment matches the diameter of the valve stem. This organic wastewater aeration system solves the problem in the prior art that gas cannot be uniformly diffused from the one-way valve plate.

Description

Technical Field

[0001] This invention relates to aeration tools, specifically to an organic wastewater aeration system. Background Technology

[0002] In the existing technology, the organic wastewater aeration system includes: an aeration pipeline, an air pump, and aeration heads. The output end of the air pump is connected to the aeration pipeline, which is connected to several aeration heads. The air pump blows air into the aeration pipeline, which then reaches the aeration heads, and the aeration heads aerate the air outward. In the process of organic wastewater treatment, the aeration device is an essential piece of equipment that can promote the growth of aerobic microorganisms, so that the aerobic microorganisms can degrade organic matter.

[0003] like Figure 1 as well as Figure 2 As shown, the aeration head includes: a connecting head 21, a diverging cover 22, a one-way valve plate 23, a valve stem, and a spring. One end of the connecting head 21 is connected to the aeration pipeline, and the other end of the connecting head 21 forms an annular step 210. A through hole for gas to pass through is opened in the middle of the annular step 210. The annular step 210 is covered by a diverging cover 22. A movable one-way valve plate 23 is provided between the diverging cover 22 and the annular step 210. The one-way valve plate 23 is fixed to the valve stem. A spring is connected between the valve stem and the connecting head 21. The spring is used to keep the one-way valve plate 23 pressed against the annular step 210.

[0004] In the aforementioned aeration head, although the one-way valve plate 23 can achieve the function of closing the annular step 210 when the air pump stops working and the air pressure inside the connecting head 21 decreases, thus blocking external impurities such as mud and sand from entering, the aeration head still has the following drawback: because the one-way valve plate 23 is a plate structure without openings, when the air pump is working, gas rushes out from the gap between the one-way valve plate 23 and the annular step 210, and very little gas reaches the center of the diffusion cover 22. Consequently, the gas is scattered around the diffusion cover 22, and very little gas is discharged from the center of the diffusion cover 22. This results in uneven distribution of aerobic gas to the packing material, leading to a higher concentration of aerobic bacteria in some areas and a lower concentration in others. Therefore, how to ensure that the gas is evenly dispersed from the one-way valve plate 23 is a problem that this application urgently needs to solve. Summary of the Invention

[0005] The present invention provides an organic wastewater aeration system that solves the problem in the prior art that the gas cannot be evenly dispersed from the one-way valve plate.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] This invention discloses an organic wastewater aeration system, comprising: an aeration pipeline, an air pump, and aeration heads. The output end of the air pump is connected to the aeration pipeline, and the aeration pipeline is connected to a plurality of aeration heads. Each aeration head includes: a connecting head, a radiating cover, a one-way valve plate, a valve stem, and a spring. One end of the connecting head is connected to the aeration pipeline, and the other end of the connecting head forms an annular step. A through hole for gas passage is opened in the middle of the annular step. A radiating cover is placed over the annular step, and a movable one-way valve is provided between the radiating cover and the annular step. The valve plate is fixed to the valve stem, and a spring is connected between the valve stem and the connecting head. The spring is used to keep the one-way valve plate pressed against the annular step. The outer diameter of the annular step is d1. The diameter of the through hole opened in the annular adjustment matches the diameter of the valve stem. The diameter of the valve stem is d2, and d2 is less than or equal to 1 / 4 of d1. Several first air guide holes are opened on the annular step. The first air guide holes surround the through hole. The one-way valve plate can block the first air guide holes. A second air guide hole is opened on the one-way valve and is located next to the first air guide holes.

[0008] Preferably, the first air guide holes are arranged to form at least two rings of first air guide holes, and a sealing ring is provided on both the inner and outer sides of each ring of first air guide holes. The sealing ring is installed on the surface of the one-way valve plate near the annular step. The second air guide holes of the one-way valve plate are also arranged to form several rings of second air guide holes, and a ring of second air guide holes is provided in the gap between two adjacent first air guide holes.

[0009] Preferably, granular filler is installed between the radiating cap and the annular step.

[0010] Preferably, an air vent plate is installed at one end of the connecting head near the aeration pipe, and a number of first aeration holes are opened on the air vent plate. A movable seat is installed next to the aeration pipe, and a number of adjusting blocks are fixed on the movable seat. There is an adjusting block corresponding to each aeration head. A second aeration hole is opened on the adjusting block. The second aeration hole can be aligned with or deviated from the first aeration hole. The axis of the aeration pipe is located in the X direction, and the adjusting block and the movable seat can move relative to the aeration pipe in the X direction.

[0011] Preferably, the aeration pipeline is covered with a protective cover, and a movable seat is installed inside the protective cover, with the movable seat extending outside the protective cover.

[0012] Preferably, an installation groove is provided at the end of the connector near the aeration pipe, and the installation groove allows the air vent plate and the adjusting block to be inserted into the connector from the X direction.

[0013] Preferably, the valve stem has a socket at the end away from the annular step, one end of which is inserted. The end of the socket has a "mountain" shaped structure, and a spring is installed between the end of the end and the annular step.

[0014] Preferably, the vent plate has a notch through which the middle of the end block passes, the vent plate restricts the end block from disengaging from the insertion hole, and the end block has a sliding groove for the end block to move relative to the vent plate in the Z direction.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] This application addresses the problem of airflow only escaping from the gap between the inner wall of the through hole and the valve stem at the annular step, where airflow is only possible through the gap between the one-way valve and the annular step due to the lack of airflow through the one-way valve plate. The main design involves opening a first air guide hole on the annular step and a second air guide hole on the one-way valve plate. During aeration, gas no longer passes through the gap between the through hole and the valve stem; the through hole merely guides the movement of the valve stem. Gas flows from the first air guide hole on the annular step towards the one-way valve plate. The second air guide hole on the one-way valve plate is staggered with the first air guide hole on the annular step, allowing some airflow to pass through the gap between the one-way valve plates while the gas flows towards the second guide hole. This ensures that the airflow is evenly directed towards the diffuser cover, preventing edge aeration and ensuring aeration in the center of the diffuser cover. This allows oxygen to be evenly sprayed onto the packing material in the organic wastewater treatment process, preventing aerobic bacteria from concentrating in clumps and ensuring even distribution of aerobic bacteria, thus enabling uniform degradation of wastewater throughout the packing material. Then, because a large area is needed to open the first air guide hole, the ratio of the valve stem diameter to the outer diameter of the annular step is set to ensure sufficient space for opening the first air guide hole. Finally, because the second air guide hole and the first air guide hole are staggered, when the aeration work is completed and the one-way valve plate is pressed against the annular step under the spring force, the position of the one-way valve plate where the second air guide hole is not opened can block the first air guide hole. This prevents sludge and other impurities from flowing back into the connector due to a sudden drop in air pressure after the aeration work is completed, thus preventing the connector from being blocked. Therefore, the coordinated setting of the first air guide hole and the second air guide hole will not affect the function of the one-way valve plate in restricting the flow direction.

[0017] Other advantages, objectives and features of the present invention will become apparent in part from the following description, and in part from those skilled in the art through study and practice of the invention. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of the aeration head in the prior art.

[0019] Figure 2 for Figure 1 A schematic diagram of the structure after the central radiating cover is disassembled.

[0020] Figure 3 This is a schematic diagram of the organic wastewater aeration system in this application.

[0021] Figure 4 for Figure 3 A schematic diagram of the structure after the protective cover has been disassembled.

[0022] Figure 5 This is a schematic diagram of the aeration head in this application.

[0023] Figure 6 for Figure 5 A schematic diagram of the structure after the central radiating cover is disassembled.

[0024] Figure 7 for Figure 6 A schematic diagram of the structure of the one-way valve plate after disassembly.

[0025] Figure 8 This is a schematic diagram of the mechanism at the one-way valve plate in this application.

[0026] Figure 9 for Figure 6 A schematic diagram of the structure after the central connector is disassembled.

[0027] Figure 10 This is a schematic diagram of the organic wastewater aeration system in this application.

[0028] Reference numerals in the attached drawings: 1. Aeration pipe; 2. Aeration head; 21. Connecting head; 210. Annular step; 211. First air guide hole; 212. Mounting groove; 22. Diffusion cover; 23. One-way valve plate; 230. Second air guide hole; 24. Valve stem; 240. End block; 241. Slide groove; 25. Spring; 26. Sealing ring; 27. Ventilation plate; 28. Adjusting block; 3. Moving seat; 4. Protective cover; 5. Packing material. Detailed Implementation

[0029] To make the technical means, creative features, objectives and effects of this invention clearer and easier to understand, the invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0030] like Figures 2 to 8As shown, this invention discloses an organic wastewater aeration system, comprising: an aeration pipeline 1, an air pump (not shown), and aeration heads 2. The output end of the air pump is connected to the aeration pipeline 1, and the aeration pipeline 1 is connected to a plurality of aeration heads 2. Each aeration head 2 includes: a connecting head 21, a radiating cover 22, a one-way valve plate 23, a valve stem 24, and a spring 25. One end of the connecting head 21 is connected to the aeration pipeline 1, and the other end of the connecting head 21 forms an annular step 210. A through hole for gas passage is opened in the middle of the annular step 210. The annular step 210 is covered by a radiating cover 22, and a movable one-way valve plate 23 is provided between the radiating cover 22 and the annular step 210. 3. A one-way valve plate 23 is fixed to a valve stem 24. A spring 25 is connected between the valve stem 24 and the connecting head 21. The spring 25 is used to keep the one-way valve plate 23 pressed against the annular step 210. The outer diameter of the annular step 210 is d1. The diameter of the through hole opened by the annular adjustment matches the diameter of the valve stem 24. The diameter of the valve stem 24 is d2, which is less than or equal to 1 / 4 of d1. Several first air guide holes 211 are opened on the annular step 210. The first air guide holes 211 surround the through hole. The one-way valve plate 23 can block the first air guide holes 211. A second air guide hole 230 is opened on the one-way valve. The second air guide hole 230 is located next to the first air guide hole 211.

[0031] The first air guide holes 211 are arranged in at least two rings. A sealing ring 26 is correspondingly provided on both the inner and outer sides of each ring of first air guide holes 211. The sealing rings 26 are installed on the surface of the one-way valve plate 23 near the annular step 210. The second air guide holes 230 of the one-way valve plate 23 are also arranged in several rings. A ring of second air guide holes 230 is correspondingly provided between adjacent first air guide holes 211. This is one way to alternate the arrangement of the first air guide holes 211 and the second air guide holes 230; other methods also exist. The sealing rings 26 on both the inner and outer sides of each ring of first air guide holes 211 ensure that all first air guide holes 211 are fully sealed when the one-way valve plate 23 presses against the annular step 210. The sealing rings 26 are spaced apart to avoid affecting the function of the first air guide holes 211 and the second air guide holes 230.

[0032] Granular packing is installed between the diffuser cover 22 and the annular step 210. This packing has the function of firstly preventing sludge from entering the connecting head 21. When the air pressure inside the diffuser cover 22 decreases, the granular packing can first block the sludge, thus achieving the possibility of doubly preventing sludge from entering.

[0033] An air vent plate 27 is installed at one end of the connecting head 21 near the aeration pipe 1. The air vent plate 27 has several first aeration holes. A movable seat 3 is installed beside the aeration pipe 1, and several adjusting blocks 28 are fixed on the movable seat 3. Each aeration head 2 has an adjusting block 28, and each adjusting block 28 has a second aeration hole. The second aeration holes can be aligned with or offset from the first aeration holes. The axis of the aeration pipe 1 is located in the X direction, and the adjusting blocks 28 and the movable seat 3 can move relative to the aeration pipe in the X direction. Since the aeration rate needs to be adjusted at different times during the organic wastewater treatment process, the aeration speed is adjusted by adjusting the position of the adjusting blocks 28 to adjust the alignment between the second and first aeration holes, thereby meeting the requirements of organic wastewater treatment.

[0034] A protective cover 4 is installed on the outside of the aeration pipe 1. A movable seat 3 is installed inside the protective cover 4 and extends outside the protective cover 4. This covers the adjusting block 28 and the movable seat 3, which can move relative to the protective cover 4 in the X direction.

[0035] An installation groove 212 is provided at the end of the connecting head 21 near the aeration pipe 1. The installation groove 212 allows the air vent plate 27 and the adjusting block 28 to be inserted into the connecting head 21 from the X direction. This enables the air vent plate 27 and the adjusting block 28 to be installed from the X direction by insertion.

[0036] The valve stem 24 has a insertion hole at the end away from the annular step 210. One end block 240 is inserted into the insertion hole. The end block 240 has a "mountain" shaped structure, and a spring 25 is installed between the end block 240 and the annular step 210. This allows the end block 240 to be installed by inserting it into the end block 240.

[0037] The vent plate 27 has a notch through which the middle of the end block 240 passes. The vent plate 27 restricts the end block 240 from disengaging from the insertion hole. The end block 240 has a sliding groove 241 through which the end block 240 moves relative to the vent plate 27 in the Z direction.

[0038] In this application, firstly, to prevent sludge and other impurities from entering the connecting head 21 after aeration, a one-way valve plate 23, a valve stem 24, and a spring 25 are installed. This allows the annular step 210 to automatically close when the air pressure inside the connecting head 21 decreases, preventing sludge and other impurities from clogging the connecting head 21. Secondly, to allow the airflow at the one-way valve plate 23 to dissipate, a first air guide hole 211 is designed on the annular step 210, and a second air guide hole 230 is designed on the one-way valve plate 23. The second air guide hole 230 and the first air guide hole 211 are staggered. Thirdly, to adjust the aeration speed, all adjusting blocks 28 are designed to move relative to the ventilation plate 27 under the action of the movable seat 3, thereby adjusting the alignment between the second and first aeration holes to regulate the aeration speed. Furthermore, to facilitate the installation of the vent plate 27 and the adjusting block 28, a mounting groove 212 is provided on the connecting head 21 to allow insertion into the connecting head 21 from the X direction, while also ensuring that the adjusting block 28 can move relative to the connecting head 21 in the X direction. Additionally, due to limited installation space and the small size of the inner cavity of the connecting head 21, if the end block 240 is installed on the valve stem 24 via a threaded connection, it would be difficult to rotate the end block 240. Therefore, the design incorporates the end block 240 by inserting it into a socket. Finally, since the end block 240 is only inserted into the valve stem 24, there is a high risk that the end block 240 may detach from the valve stem 24 during operation. Therefore, the end block 240 is provided with a groove 241 for the vent plate 27 and the adjusting block 28 to be inserted. After the vent plate 27 is installed on the connecting head 21 by screws or other means, it positions the end block 240 in the X direction and restricts the movement of the end block 240 in the X direction, thereby restricting the end block 240 from detaching from the valve stem 24. Positioning the end block 240 also simplifies the installation of the end block 240 on the valve stem 24. At the same time, since the height of the connecting head 21 is limited, in order to avoid the vent plate 27 and the adjusting block 28 blocking the movement of the valve stem 24, this design allows the end block 240 to pass through the vent plate 27 and the adjusting block 28, so that the valve stem 24, the end block 240 and the valve plate can move together relative to the vent plate 27 and the adjusting block 28.

[0039] When installing the spring 25, end block 240, vent plate 27, and adjusting block 28, firstly, insert the valve stem 24 into the connecting head 21, with the one-way valve plate 23 fixed on the valve stem 24 positioned one position away from the aeration pipe 1 in the connecting head 21. Then, place the spring 25 over the valve stem 24. Next, insert the end block 240 into the connecting head 21 from the side closest to the aeration pipe 1, causing the end block 240 to deform under the pressure of the spring 25. Then, insert a finger into the mounting groove 212, pinch the end block 240, and insert it into the insertion hole on the valve stem 24. Next, insert the vent plate 27 into the mounting groove 212, passing through the sliding groove 241 on the side of the end block 240, and simultaneously install the vent plate 27 onto the connecting head 21 using screws. Finally, insert the adjusting block 28 into the mounting groove 212 to complete the installation.

[0040] 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 it. Although the present invention 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 solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all such modifications or substitutions should be covered within the scope of the claims of the present invention.

Claims

1. An organic wastewater aeration system, including: The aeration pipeline (1), air pump and aeration head (2) are connected to the aeration pipeline (1), and the aeration pipeline (1) is connected to several aeration heads (2). The aeration head (2) includes: a connecting head (21), a diverging cover (22), a one-way valve plate (23), a valve stem (24), and a spring (25). One end of the connecting head (21) is connected to the aeration pipeline (1), and the other end of the connecting head (21) forms an annular step (210). A through hole for gas to pass through is opened in the middle of the annular step (210). The annular step (210) is covered by a diverging cover (22). A movable one-way valve plate (23) is provided between the diverging cover (22) and the annular step (210). The one-way valve plate (23) is fixed to the valve stem (24). A spring (25) is connected between the valve stem (24) and the connecting head (21). The spring (25) is used to keep the one-way valve plate (23) pressed against the annular step (210). The outer diameter of the annular step (210) is d1. The diameter of the through hole opened by the annular adjustment matches the diameter of the valve stem (24). The diameter of the valve stem (24) is d2, which is less than or equal to 1 / 4 of d1. Several first air guide holes (211) are opened on the annular step (210). The first air guide holes (211) surround the through hole. The one-way valve plate (23) can block the first air guide holes (211). A second air guide hole (230) is opened on the one-way valve. The second air guide hole (230) is located next to the first air guide hole (211). The first air guide holes (211) are arranged to form at least two rings of first air guide holes (211). Each ring of first air guide holes (211) has a sealing ring (26) on both the inner and outer sides. The sealing ring (26) is installed on the surface of the one-way valve plate (23) near the annular step (210). The second air guide holes (230) of the one-way valve plate (23) are also arranged to form several rings of second air guide holes (230). A ring of second air guide holes (230) is arranged in the gap between two adjacent first air guide holes (211). Granular filler is installed between the radiating cap (22) and the annular step (210).

2. The organic wastewater aeration system according to claim 1, characterized in that, An air vent plate (27) is installed at one end of the connecting head (21) near the aeration pipe (1). Several first aeration holes are opened on the air vent plate (27). A movable seat is installed next to the aeration pipe (1). Several adjusting blocks are fixed on the movable seat. There is an adjusting block corresponding to each aeration head (2). A second aeration hole is opened on the adjusting block. The second aeration hole can be aligned with or deviated from the first aeration hole. The axis of the aeration pipe (1) is located in the X direction. The adjusting block and the movable seat can move relative to the aeration pipe in the X direction.

3. The organic wastewater aeration system according to claim 2, characterized in that, A protective cover (4) is provided on the outside of the aeration pipe (1), and a movable seat is installed inside the protective cover (4), which extends to the outside of the protective cover (4).

4. The organic wastewater aeration system according to claim 3, characterized in that, An installation groove (212) is provided at the end of the connector (21) near the aeration pipe (1). The installation groove (212) allows the ventilation plate (27) and the adjusting block to be inserted into the connector (21) from the X direction.

5. The organic wastewater aeration system according to claim 4, characterized in that, The valve stem (24) has an insertion hole at the end away from the annular step (210). One end block (240) is inserted into the insertion hole. The end block (240) has a "mountain" shaped structure. A spring (25) is installed between the end block (240) and the annular step (210).

6. The organic wastewater aeration system according to claim 5, characterized in that, The vent plate (27) has a notch through which the middle of the end block (240) passes. The vent plate (27) restricts the end block (240) from disengaging from the insertion hole. The end block (240) has a groove (241) through which the end block (240) moves relative to the vent plate (27) in the Z direction.

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