Water outlet groove structure of radial-flow sedimentation tank

Abstract

The utility model relates to a water outlet groove structure of a radial-flow sedimentation tank, and belongs to the technical field of radial-flow sedimentation tanks. Comprising a tank body which is fixedly connected to the right side of a radial-flow sedimentation tank. The highest position of the upper surface of the buried horizontal pipeline is connected with the first exhaust pipeline in a penetrating mode, so that gas generated in the water outlet pipeline can be exhausted into the tank body through the first exhaust pipeline, the second exhaust pipeline and the inverted-U-shaped exhaust pipeline, the gas in the water outlet pipeline is effectively released, the gas is prevented from accumulating to form water vapor resistance, and the service life of the tank body is prolonged. Therefore, the risks of pressure change and cavitation of the water outlet pipeline are reduced, the service life of the water outlet pipeline is prolonged, meanwhile, the situation that the liquid level in the tank body is suddenly high and suddenly low due to gas pressure change can be avoided, and the possibility of water spray sputtering is reduced. By arranging the fixed cover plate, the box body and the movable cover plate, the opening in the upper end of the tank body is closed, so that water in the tank body can be prevented from being splashed onto a walkway around the radial-flow sedimentation tank.

Description

Technical Field

[0001] The utility model relates to the technical field of radial flow sedimentation tanks, in particular to a water outlet tank structure of a radial flow sedimentation tank. Background Art

[0002] When a sewage treatment plant treats sewage, the sewage will enter the radial flow sedimentation tank from the sewage pipeline. After the water in the radial flow sedimentation tank undergoes radial flow sedimentation, the solid particles in the water will settle to the bottom of the tank to form sludge, which is discharged through the sludge pipe. The relatively clear water will overflow over the baffle and enter the water outlet channel, then converge to the water outlet tank through the water outlet holes, and finally flow into the high-density radial flow sedimentation tank by gravity through the water outlet pipe. The high-density radial flow sedimentation tank is usually used to further purify the water quality and remove residual suspended solids and tiny particulate matter.

[0003] During actual operation, when the radial flow sedimentation tank reaches full load operation or the treated water volume is large, the water outlet pipe often encounters the phenomenon of water and gas blockage. This phenomenon will cause a sudden change in the pressure inside the water outlet pipe, which will in turn trigger the cavitation phenomenon, accelerate the wear of the inner wall of the water outlet pipe, and thus shorten the service life of the water outlet pipe. Secondly, the water and gas blockage will also cause the liquid level in the water outlet tank to fluctuate. When the liquid level suddenly drops, it will cause the water in the water outlet tank to splash everywhere. These splashes will fly to the walkways around the radial flow sedimentation tank and may freeze in winter, increasing the safety risk for operators. In addition, the splashing of the water may also affect the operation of the sludge scraper in the radial flow sedimentation tank. When the sludge scraper passes through these areas, the tires may slip, and even the motor may burn out, further affecting the normal operation of the equipment. Content of the Utility Model

[0004] To solve the above technical problems, the utility model provides a water outlet tank structure of a radial flow sedimentation tank. The technical solution of the utility model is as follows:

[0005] A structure of the effluent trough of a radial flow sedimentation tank, comprising a trough body, the trough body is fixedly connected to the right side of the radial flow sedimentation tank, a baffle is fixedly connected inside the radial flow sedimentation tank, an effluent channel is formed between the baffle and the outer wall of the radial flow sedimentation tank, the effluent channel is communicated with the trough body through an effluent hole, a sewage pipe is connected through the lower surface of the trough body, and a flange is connected to the lower end of the sewage pipe with an effluent pipe. The effluent pipe includes a connecting pipe, a buried elbow pipe and a buried horizontal pipe. The connecting pipe is flange-connected to the lower end of the sewage pipe, the buried elbow pipe is flange-connected to the lower end of the connecting pipe, and the buried horizontal pipe is fixedly connected to one end of the buried elbow pipe away from the connecting pipe. The highest point on the upper surface of the buried horizontal pipe is connected through an exhaust pipe one, the upper end of the exhaust pipe one is flange-connected with an exhaust pipe two, and the upper end of the exhaust pipe two is fixedly connected with an inverted U-shaped exhaust pipe. A square frame is fixedly connected inside the upper opening of the trough body, a fixed cover plate is fixedly connected to the left side inside the square frame, a box body is fixedly connected to the right side inside the square frame, the lower surface of the box body is in an open state and is communicated with the trough body, a ventilation net is fixedly connected to the right side of the box body, one end of the inverted U-shaped exhaust pipe away from the exhaust pipe two penetrates through the box body and extends into the trough body, and a movable cover plate is movably connected to the left side of the box body, and the movable cover plate is located between the fixed cover plate and the box body.

[0006] Optionally, the lower half of the inner part of the trough body is in a funnel-shaped structure.

[0007] Optionally, the sewage pipe, the connecting pipe, the buried elbow pipe, the buried horizontal pipe, the exhaust pipe one, the exhaust pipe two and the inverted U-shaped exhaust pipe are all made of carbon steel pipes.

[0008] Optionally, a rotating shaft is fixedly connected to the left side of the box body, and the movable cover plate forms a rotating structure with the box body through the rotating shaft.

[0009] Optionally, a through hole is formed through the upper surface of the box body, and one end of the inverted U-shaped exhaust pipe away from the exhaust pipe two is fixedly connected inside the through hole.

[0010] Optionally, an observation port is formed through the middle position of the surface of the movable cover plate, and a protective net is fixedly connected inside the observation port.

[0011] Optionally, a protective plate is movably connected inside the observation port and above the protective net.

[0012] All the above optional technical solutions can be arbitrarily combined, and the present invention does not elaborate on the structures after combination one by one.

[0013] By means of the above solution, the beneficial effects of the present invention are as follows:

[0014] 1. The utility model penetrates and connects the first exhaust pipe at the highest point on the upper surface of the buried horizontal pipeline, so that the gas generated in the water outlet pipeline can be discharged into the inside of the tank through the first exhaust pipe, the second exhaust pipe and the inverted U-shaped exhaust pipe, effectively releasing the gas in the water outlet pipeline, preventing the accumulation of gas to form water-gas resistance, thereby reducing the risk of pressure change and cavitation in the water outlet pipeline, extending the service life of the water outlet pipeline, and at the same time, it can also prevent the liquid level in the tank from fluctuating up and down due to gas pressure change and reduce the possibility of water splash.

[0015] 2. By setting the fixed cover plate, the box body and the movable cover plate to seal the upper end opening of the tank, the water splash in the tank can be prevented from splashing onto the walkway around the radial flow sedimentation tank, thereby preventing the normal operation of the sludge scraper from being affected.

[0016] The above description is only an overview of the technical solution of the utility model. In order to be able to understand the technical means of the utility model more clearly and implement it according to the content of the specification, the following takes the preferred embodiment of the utility model and combines with the attached drawings to describe in detail as follows. Brief Description of the Drawings

[0017] Figure 1 It is a schematic diagram of the overall appearance structure of the water outlet tank structure of the radial flow sedimentation tank provided by the utility model;

[0018] Figure 2 It is a top view of the water outlet tank structure of the radial flow sedimentation tank provided by the utility model;

[0019] Figure 3 It is a main sectional view of the water outlet tank structure of the radial flow sedimentation tank provided by the utility model;

[0020] Figure 4 It is a schematic diagram of the structure of the tank body cooperating with the square frame and peripheral components in the utility model;

[0021] Figure 5 It is an exploded structure diagram of the square frame, the fixed cover plate, the box body and the movable cover plate in the utility model;

[0022] Figure 6 It is a main sectional view of the cooperation of the square frame, the fixed cover plate, the box body and the movable cover plate in the utility model.

[0023] Reference numerals in the figures: 1, radial flow sedimentation tank; 11, baffle; 12, effluent channel; 2, tank body; 21, effluent hole; 22, sewage pipe; 3, connecting pipe; 4, buried elbow pipe; 41, buried horizontal pipe; 42, exhaust pipe I; 5, exhaust pipe II; 51, inverted U-shaped exhaust pipe; 6, square frame; 7, fixed cover plate; 8, box body; 81, rotating shaft; 82, ventilation net; 83, through hole; 9, movable cover plate; 91, observation port; 92, protection net; 93, protection plate. Detailed implementation mode

[0024] The following combines the drawings and embodiments to further describe in detail the specific implementation mode of the present utility model. The following embodiments are used to illustrate the present utility model, but are not used to limit the scope of the present utility model.

[0025] Please refer to Figure 1-6 , the present utility model provides a structure of an effluent trough for a radial flow sedimentation tank, including a tank body 2, the tank body 2 is fixedly connected to the right side of the radial flow sedimentation tank 1, a baffle 11 is fixedly connected to the inner side of the radial flow sedimentation tank 1, an effluent channel 12 is formed between the baffle 11 and the outer wall of the radial flow sedimentation tank 1, the effluent channel 12 is communicated with the tank body 2 through an effluent hole 21, a sewage pipe 22 is connected through the lower surface of the tank body 2, the lower end of the sewage pipe 22 is flange-connected to an effluent pipe, the effluent pipe includes a connecting pipe 3, a buried elbow pipe 4 and a buried horizontal pipe 41, the connecting pipe 3 is flange-connected to the lower end of the sewage pipe 22, the buried elbow pipe 4 is flange-connected to the lower end of the connecting pipe 3, the buried horizontal pipe 41 is fixedly connected to the end of the buried elbow pipe 4 away from the connecting pipe 3, the highest point on the upper surface of the buried horizontal pipe 41 is connected through an exhaust pipe I 42, the upper end of the exhaust pipe I 42 is flange-connected to an exhaust pipe II 5, the upper end of the exhaust pipe II 5 is fixedly connected to an inverted U-shaped exhaust pipe 51, a square frame 6 is fixedly connected to the inner side of the upper end opening of the tank body 2, a fixed cover plate 7 is fixedly connected to the left side inside the square frame 6, a box body 8 is fixedly connected to the right side inside the square frame 6, the lower surface of the box body 8 is in an open state and is communicated with the tank body 2, a ventilation net 82 is fixedly connected to the right side of the box body 8, the end of the inverted U-shaped exhaust pipe 51 away from the exhaust pipe II 5 penetrates through the box body 8 and extends into the inside of the tank body 2, a movable cover plate 9 is movably connected to the left side of the box body 8, and the movable cover plate 9 is located between the fixed cover plate 7 and the box body 8.

[0026] In this utility model, an exhaust pipe 42 is connected through the highest point on the upper surface of the buried horizontal pipe 41, so that the gas generated in the water outlet pipe can be discharged into the inside of the tank body 2 through the exhaust pipe 42, the exhaust pipe 5 and the inverted U-shaped exhaust pipe 51, effectively releasing the gas in the water outlet pipe, preventing the gas from accumulating to form a water-vapor resistance, thereby reducing the risk of pressure change and cavitation in the water outlet pipe, and prolonging the service life of the water outlet pipe. At the same time, it can also prevent the liquid level in the tank body 2 from fluctuating due to gas pressure changes, reducing the possibility of water splashing.

[0027] By setting the fixed cover plate 7, the box body 8 and the movable cover plate 9 to seal the upper end opening of the tank body 2, it is possible to prevent the water splashes in the tank body 2 from splashing onto the walkway around the radial flow sedimentation tank 1.

[0028] Specifically, the main function of the fixed cover plate 7 is that when the sludge scraper is operating, it will pass through the upper end opening of the tank body 2, and the fixed cover plate 7 can provide support for the rollers of the sludge scraper; a ventilation net 82 is connected to the right side of the box body 8, ensuring that the air inside the tank body 2 can circulate freely, avoiding air accumulation or pressure changes. At the same time, the ventilation net 82 is arranged on the right side of the box body 8. When water splashes in the tank body 2, the ventilation net 82 is located on the right side of the box body 8, which can effectively control the direction of the water splashes, so that they can only splash out through the ventilation net 82 and will not splash onto the walkway around the radial flow sedimentation tank 1, thereby reducing icing and potential safety hazards and preventing them from affecting the normal operation of the sludge scraper; the function of the movable cover plate 9 is to facilitate the staff to maintain and repair the inside of the tank body 2. Since the movable cover plate 9 can be opened or moved, the staff can easily enter the inside of the tank body 2 for cleaning, maintenance or inspection.

[0029] Specifically, both the connecting pipe 3 and the exhaust pipe 5 are in an external state and are exposed to the external environment for a long time. The flange connection method is adopted, which is convenient for subsequent maintenance and replacement.

[0030] Furthermore, the lower half of the inside of the tank body 2 is of a funnel-shaped structure.

[0031] Specifically, the funnel-shaped structure can centrally guide the water inside the tank body 2 to the bottom drain pipe 22, ensuring smooth and efficient water discharge. At the same time, the funnel-shaped structure makes there be no dead corners or sunken areas inside the tank body 2, which can reduce or avoid the accumulation of solid particles or sediment, facilitating cleaning and maintenance.

[0032] Furthermore, the drain pipe 22, the connecting pipe 3, the buried elbow pipe 4, the buried horizontal pipe 41, the exhaust pipe 42, the exhaust pipe 5 and the inverted U-shaped exhaust pipe 51 are all made of carbon steel pipes.

[0033] Specifically, the pipeline made of carbon steel has high strength and durability, can withstand the transmission of high-pressure and large-flow liquids or gases, and is suitable for long-term use.

[0034] Furthermore, a rotating shaft 81 is fixedly connected to the left side of the box body 8, and the movable cover plate 9 forms a rotating structure with the box body 8 through the rotating shaft 81.

[0035] Specifically, the movable cover plate 9 is rotatably connected to the box body 8. When maintenance of the inside of the tank body 2 by staff is required, the movable cover plate 9 can be easily rotated and opened.

[0036] Furthermore, a through hole 83 is penetrated and opened on the upper surface of the box body 8, and one end of the inverted U-shaped exhaust pipe 51 far away from the exhaust pipe two 5 is fixedly connected inside the through hole 83.

[0037] Specifically, the function of the through hole 83 is to allow the inverted U-shaped exhaust pipe 51 to pass through and extend into the box body 8.

[0038] Furthermore, an observation port 91 is penetrated and opened at the middle position on the surface of the movable cover plate 9, and a protective net 92 is fixedly connected inside the observation port 91.

[0039] Specifically, staff can see the internal state and working conditions of the tank body 2 through the observation port 91, which is convenient for staff to conduct inspections and monitoring. The protective net 92 plays a protective role to prevent sundries, foreign objects or personnel from accidentally falling into the tank body 2.

[0040] Furthermore, a protective plate 93 is movably connected inside the observation port 91 and above the protective net 92.

[0041] Specifically, when it is necessary to observe the inside of the tank body 2, the protective plate 93 needs to be taken out first. The function of the protective plate 93 can prevent the water splash inside the tank body 2 from splashing out from the observation port 91.

[0042] The above are only the preferred embodiments of the present invention and are not used to limit the present invention. It should be noted that for those of ordinary skill in the art, without departing from the technical principle of the present invention, several improvements and modifications can still be made, and these improvements and modifications should also be regarded as the protection scope of the present invention.

Claims

1. A structure of the effluent trough of a radial flow sedimentation tank, characterized in that: It includes a trough body (2) which is fixedly connected to the right side of a radial sedimentation tank (1). A baffle (11) is fixedly connected inside the radial sedimentation tank (1). An effluent channel (12) is formed between the baffle (11) and the outer wall of the radial sedimentation tank (1). The effluent channel (12) is communicated with the trough body (2) through an effluent hole (21). A drain pipe (22) is connected through the lower surface of the trough body (2). The lower end of the drain pipe (22) is flange-connected to an effluent pipe. The effluent pipe includes a connecting pipe (3), a buried elbow pipe (4), and a buried horizontal pipe (41). The connecting pipe (3) is flange-connected to the lower end of the drain pipe (22). The buried elbow pipe (4) is flange-connected to the lower end of the connecting pipe (3). The buried horizontal pipe (41) is fixedly connected to one end of the buried elbow pipe (4) far from the connecting pipe (3). The highest point on the upper surface of the buried horizontal pipe (41) is connected through an exhaust pipe one (42). The upper end of the exhaust pipe one (42) is flange-connected to an exhaust pipe two (5). The upper end of the exhaust pipe two (5) is fixedly connected to an inverted U-shaped exhaust pipe (51). A square frame (6) is fixedly connected inside the upper opening of the trough body (2). A fixed cover plate (7) is fixedly connected to the left side inside the square frame (6). A box body (8) is fixedly connected to the right side inside the square frame (6). The lower surface of the box body (8) is in an open state and is communicated with the trough body (2). A ventilation net (82) is fixedly connected to the right side of the box body (8). One end of the inverted U-shaped exhaust pipe (51) far from the exhaust pipe two (5) penetrates through the box body (8) and extends into the inside of the trough body (2). A movable cover plate (9) is movably connected to the left side of the box body (8). The movable cover plate (9) is located between the fixed cover plate (7) and the box body (8).

2. The structure of the effluent trough of a radial flow sedimentation tank according to claim 1, characterized in that, The lower half part inside the trough body (2) is of a funnel-shaped structure.

3. The radial flow sedimentation tank effluent trough structure according to claim 1, wherein The drain pipe (22), the connecting pipe (3), the buried elbow pipe (4), the buried horizontal pipe (41), the exhaust pipe one (42), the exhaust pipe two (5), and the inverted U-shaped exhaust pipe (51) are all made of carbon steel pipes.

4. The structure of the effluent trough of a radial flow sedimentation tank according to claim 1, characterized in that, A rotating shaft (81) is fixedly connected to the left side of the box body (8). The movable cover plate (9) forms a rotating structure with the box body (8) through the rotating shaft (81).

5. The structure of the effluent trough of a radial flow sedimentation tank according to claim 4, characterized in that, A through hole (83) is formed through the upper surface of the box body (8). One end of the inverted U-shaped exhaust pipe (51) far from the exhaust pipe two (5) is fixedly connected inside the through hole (83).

6. A radial flow sedimentation tank effluent trough structure according to claim 1 or 4 or 5, characterized in that, An observation port (91) is formed through the middle position on the surface of the movable cover plate (9). A protective net (92) is fixedly connected to the inside of the observation port (91).

7. The structure of the effluent trough of a radial sedimentation tank according to claim 6, characterized in that, A protective plate (93) is movably connected to the inside of the observation port (91) and above the protective net (92).

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