A wastewater treatment pond water passing device

Abstract

This utility model discloses a wastewater treatment tank water conveyance device, relating to the technical field of wastewater treatment tanks. It includes a treatment tank body composed of a first tank and a second tank, connected by a conveying pipe. The bottom end of the conveying pipe is inclined and connected to a discharge pipe, which is vertical. An exhaust pipe is connected to the top of the discharge pipe, and a guide component is connected to the bottom of the discharge pipe. The guide component includes a connecting frame, which is bolted to the discharge pipe. This utility model discharges wastewater through a vertical discharge pipe, reducing local flow resistance caused by bends compared to U-shaped pipes, allowing wastewater to flow more smoothly. It also prevents wastewater residue from deteriorating and becoming smelly, or from freezing in winter, affecting pipe use. The exhaust pipe connected to the top of the discharge pipe prevents gas generated by the aeration system from flowing back into the conveying pipe and forming air resistance, ensuring gas-liquid separation and maintaining stable water flow.

Description

Technical Field

[0001] This utility model relates to the field of sewage treatment tank technology, specifically to a sewage treatment tank water flow device. Background Technology

[0002] The activated sludge process is a classic technology widely used in the treatment of various types of wastewater, such as municipal sewage and industrial wastewater. It typically employs multiple wastewater treatment tanks connected in series as the main reaction device, with walls separating the tanks. Wastewater flows from front to back within the tanks and undergoes biochemical treatment to degrade and remove pollutants.

[0003] Chinese utility model patent application number 202420572857.X provides a wastewater treatment tank water passage device. By setting a sealing mechanism, it is easy to seal the gaps between adjacent wastewater treatment tanks, thereby improving the convenience and efficiency of equipment maintenance in the treatment tank; by setting an exhaust mechanism, it is easy to exhaust air from the water passage pipe; and by setting an anti-fouling mechanism, it is easy to block one end of the U-shaped water outlet bend.

[0004] However, during the use of the above equipment, it was found that the main function of the U-shaped outlet bend is to prevent the gas generated by the aeration system of the No. 2 sewage treatment tank from flowing back into the water pipe and forming an air blockage. However, the U-shaped structure increases the local resistance of the water flow, which can easily cause the water flow velocity in the water pipe to decrease slightly. Especially when there are many impurities in the sewage, the reduced flow velocity can easily cause slight siltation. At the same time, a small amount of sewage will remain at the bottom of the U-shaped pipe. If the system is shut down for a long time, the residual sewage may deteriorate and smell bad, or freeze in the low temperature environment of winter, affecting the normal use of the pipe. Utility Model Content

[0005] To address the shortcomings of existing technologies, this utility model provides a wastewater treatment tank water flow device, which solves the problem mentioned in the background technology that the U-shaped outlet bend head affects the water flow speed and leaves a small amount of wastewater residue.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a wastewater treatment tank water conveying device, comprising a treatment tank body, the treatment tank body being composed of a No. 1 tank and a No. 2 tank, the No. 1 tank and the No. 2 tank being connected by a conveying pipe, the bottom end of the conveying pipe being inclined and connected to a discharge pipe, the discharge pipe being vertical, the top of the discharge pipe being connected to an exhaust pipe, the bottom of the discharge pipe being connected to a guide member, the guide member including a connecting frame, the connecting frame being bolted to the discharge pipe.

[0007] Preferably, the guide includes a guide block, and the bottom of the guide block is provided with a first guide surface in the shape of an inverted frustum.

[0008] Preferably, a guide groove is provided at the top of the first guide surface, the guide groove is arranged in a ring shape and the cross-section is arc-shaped.

[0009] Preferably, guide tubes are equidistantly connected to the periphery of the guide groove, and the guide tubes are in the shape of a vertical arc.

[0010] Preferably, a connecting rod is fixedly provided on the outer wall of the guide tube, and the guide tube is connected to the connecting frame through the connecting rod.

[0011] Preferably, the top of the guide block is provided with a frustum-shaped second guide surface.

[0012] Preferably, the top end of the second guide surface corresponds to the bottom end of the discharge pipe.

[0013] This utility model provides a wastewater treatment tank water passing device. It has the following beneficial effects:

[0014] (1) This utility model discharges sewage through a vertical discharge pipe. Compared with a U-shaped pipe, it reduces the local water flow resistance caused by bends, allowing sewage to flow more smoothly. At the same time, it avoids sewage residue, deterioration, odor, or freezing in winter, which would affect the use of the pipe. The top of the discharge pipe is connected to an exhaust pipe, which can prevent the gas generated by the aeration system from flowing back into the conveying pipe and forming gas resistance, ensuring the gas-liquid separation effect and maintaining stable water flow transmission.

[0015] (2) In this utility model, the bubbles generated by aeration will move upward along the first guide surface in the shape of an inverted frustum due to buoyancy and enter the guide groove. The vertical arc-shaped guide pipes connected at equal intervals around the guide groove are connected to the guide groove to provide an outlet channel for the bubbles gathered in the guide groove. The bubbles can move upward along the guide pipe and be discharged, further preventing the bubbles from entering the conveying pipe and ensuring the stability of the water flow in the conveying pipe. Attached Figure Description

[0016] Figure 1 This is a diagram showing the overall structure of the present utility model;

[0017] Figure 2 This utility model Figure 1 Structural diagram of the central conveying pipe;

[0018] Figure 3 This utility model Figure 2 A structural diagram of the guide component;

[0019] Figure 4 This utility model Figure 3 Bottom view of the guide component.

[0020] In the diagram, 1 is the main body of the treatment pool; 11 is pool number one; and 12 is pool number two.

[0021] 2. Conveying pipe; 3. Discharge pipe; 31. Exhaust pipe;

[0022] 4. Guide component; 41. Guide block; 411. First guide surface; 412. Second guide surface; 413. Guide groove; 42. Guide tube; 43. Connecting rod; 44. Connecting bracket. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] Example 1:

[0025] Please see Figures 1-4 This utility model provides a wastewater treatment tank water passage device, including a treatment tank body 1, which is composed of a first tank 11 and a second tank 12. The first tank 11 and the second tank 12 are connected by a conveying pipe 2. The bottom end of the conveying pipe 2 is inclined and connected to a discharge pipe 3. The discharge pipe 3 is vertical. The top of the discharge pipe 3 is connected to an exhaust pipe 31, and the bottom of the discharge pipe 3 is connected to a guide 4. The guide 4 includes a connecting frame 44, which is bolted to the discharge pipe 3.

[0026] The guide component 4 includes a guide block 41, and the bottom of the guide block 41 is provided with a first guide surface 411 in the shape of an inverted frustum.

[0027] The top of the first guide surface 411 is provided with a guide groove 413, which is arranged in a ring shape and has an arc-shaped cross section.

[0028] Guide tubes 42 are equidistantly connected to the periphery of the guide groove 413, and the guide tubes 42 are in the shape of a vertical arc.

[0029] A connecting rod 43 is fixedly installed on the outer wall of the guide tube 42, and the guide tube 42 is connected to the connecting frame 44 through the connecting rod 43.

[0030] The top of the guide block 41 is provided with a frustum-shaped second guide surface 412.

[0031] The top of the second guide surface 412 corresponds to the bottom of the discharge pipe 3.

[0032] Specifically, the device uses a vertical discharge pipe 3 instead of a U-shaped pipe. Compared to the U-shaped pipe, the discharge pipe 3 reduces the local water flow resistance caused by bends. Under the influence of gravity, sewage can flow more smoothly from pool 11 through the inclined conveying pipe 2 into the discharge pipe 3, and finally into pool 2 12. At the same time, the bottom of the vertical discharge pipe 3 does not have the water storage space like the U-shaped pipe, avoiding sewage residue and thus preventing residual sewage from deteriorating and smelling, or freezing in winter and affecting the use of the pipeline. The exhaust pipe 31 connected to the top of the discharge pipe 3 can promptly discharge the gas entrained in the sewage, while preventing the gas generated by the aeration system from flowing back into the conveying pipe 2, ensuring the gas-liquid separation effect and maintaining stable water flow transmission.

[0033] The guide block 41 in the guide component 4 has a first guide surface 411 in the shape of an inverted frustum at its bottom. Because the density of the bubbles generated by aeration is less than that of water, they will move upward along the first guide surface 411 under the action of buoyancy and enter the guide groove 413 at its top. The guide groove 413 is annular and has a circular arc cross-section, which facilitates the accumulation of bubbles. Vertical arc-shaped guide pipes 42 are connected to the guide groove 413 at equal intervals around its periphery, providing a dedicated discharge channel for the bubbles accumulated in the guide groove 413. The bubbles can move upward along the guide pipes 42 to avoid entering the discharge pipe 3. Even if a small number of bubbles enter the discharge pipe 3, they can be discharged through the exhaust pipe 31, further preventing the bubbles from entering the conveying pipe 2, ensuring the stability of the water flow in the conveying pipe 2, and avoiding air resistance from affecting the water flow efficiency.

[0034] The exhaust pipe 31 works with the guide 4 to achieve gas-liquid separation from two levels. The structure composed of the guide block 41, guide groove 413 and guide pipe 42 actively guides and discharges the bubbles generated by aeration. The exhaust pipe 31 promptly discharges the gas in the sewage to prevent backflow. This dual protection avoids the formation of air resistance and ensures stable water flow.

[0035] The second guide surface 412 is frustum-shaped, with its top end corresponding to the bottom of the discharge pipe 3. When sewage flows from the discharge pipe 3 to the guide block 41, the frustum-shaped structure causes the water flow to spread outward. Impurities that originally moved downward with the water flow are guided to the edge of the guide block 41 due to the change in the direction of the water flow, making it difficult for impurities to accumulate on the guide block 41. At the same time, naturally deposited impurities are also guided to the edge of the guide block 41 under the guidance of the inclined surface, avoiding accumulation on the guide block 41 and facilitating the cleaning of impurities.

[0036] Working principle: After the sewage collects in pool 11, it flows along the conveying pipe 2 to the discharge pipe 3. The sewage flows into the vertical discharge pipe 3, which reduces the resistance of bends compared to a U-shaped pipe, allowing the sewage to flow more smoothly. At the same time, the exhaust pipe 31 at the top of the discharge pipe 3 discharges the gas entrained in the sewage in real time, preventing the gas generated by the aeration system from flowing back into the conveying pipe 2, and maintaining gas-liquid separation and water flow stability.

[0037] When the sewage flows through the guide 4 at the bottom of the discharge pipe 3, the frustum-shaped second guide surface 412 at the top of the guide block 41 causes the water to spread outward, changes the direction of movement of impurities, and guides them to the edge of the guide block 41 to prevent impurities from accumulating in the guide block 41. At the same time, naturally deposited impurities are also guided to the edge under the action of the inclined surface, which is convenient for subsequent cleaning.

[0038] Because the bubbles generated by aeration are less dense than water, they move upward along the first guide surface 411 under the influence of buoyancy and enter the arc-shaped guide groove 413 at the top. The vertical arc-shaped guide pipe 42 on the periphery of the guide groove 413 is connected to the groove, providing a discharge channel for the bubbles. The bubbles rise along the guide pipe 42, avoiding entering the discharge pipe 3. Even if a small number of bubbles enter the discharge pipe 3, they can eventually be discharged through the exhaust pipe 31, preventing them from entering the conveying pipe 2 and affecting the water flow efficiency.

[0039] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. It will be apparent to those skilled in the art that this utility model is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or basic characteristics of this utility model. Therefore, the embodiments should be considered exemplary and non-limiting in all respects. The scope of this utility model is defined by the appended claims rather than the foregoing description, and thus all variations falling within the meaning and scope of equivalents of the claims are intended to be included within this utility model. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0040] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A sewage treatment tank water passing device, comprising a treatment tank body (1) which is composed of a first tank (11) and a second tank (12), characterized in that: The first pool (11) and the second pool (12) are communicated through a conveying pipe (2), the bottom end of the conveying pipe (2) is inclined, and the conveying pipe (2) is communicated with a discharge pipe (3), the discharge pipe (3) is vertical, the top of the discharge pipe (3) is connected with an exhaust pipe (31), and the bottom of the discharge pipe (3) is connected with a guide (4), the guide (4) comprises a connecting frame (44), and the connecting frame (44) is connected on the discharge pipe (3) through bolts.

2. The water overflow device for sewage treatment tank according to claim 1, characterized in that: The guide (4) comprises a guide block (41), and the bottom of the guide block (41) is provided with a first guide surface (411) in the shape of an inverted circular truncated cone.

3. The device according to claim 2, characterized in that: The top of the first guide surface (411) is provided with a guide groove (413), the guide groove (413) is arranged in a ring shape, and the cross section is in the shape of a circular arc.

4. The water overflow device for sewage treatment tank according to claim 3, characterized in that: Equidistant guide pipes (42) are connected on the circumferential side of the guide groove (413), and the guide pipes (42) are in the shape of vertical circular arcs.

5. The device according to claim 4, characterized in that: A connecting rod (43) is fixedly arranged on the outer wall of the guide pipe (42), and the guide pipe (42) is connected with the connecting frame (44) through the connecting rod (43).

6. The device according to claim 5, wherein: The top of the guide block (41) is provided with a second guide surface (412) in the shape of a circular truncated cone.

7. The device according to claim 6, characterized in that: The top end of the second guide surface (412) corresponds to the bottom of the discharge pipe (3).

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