Sludge flushing facility for rainwater storage pond

Abstract

The utility model discloses a rainwater storage pond silt flushing facility which comprises a storage pond body, a flushing water tank, a first water inlet pipe, a water outlet pipe, an aeration flushing pipe, an aeration flushing nozzle, a liquid level meter and a PLC, and the first water inlet pipe is arranged on the side wall of the storage pond body; the water outlet pipe is arranged at the bottom of the storage pond body, the aeration flushing nozzle is connected with the aeration flushing pipeline and is arranged on the upper side of the pond bottom of the storage pond body, an electric three-way valve is arranged on a pipeline of the aeration flushing pipe, one end of the aeration flushing pipe is connected with an air blower room, and the other end of the aeration flushing pipe is connected with the aeration flushing pipeline. The flushing water tank is connected with the aeration flushing pipe through the electric three-way valve, the PLC is electrically connected with the electric three-way valve, and a liquid level meter is hung above the storage pond body. Under the action of air flow and water flow, pollutants in the regulation and storage tank are effectively stirred, pollutant deposition is prevented, odor generated by pollutant decomposition is reduced, and storage and discharge of initial rainwater are realized.

Description

Technical Field

[0001] The utility model relates to the technical field of rainwater storage tanks, in particular to a rainwater storage tank flushing and silting facility. Background Art

[0002] When the initial rainwater falls, it dissolves a large amount of polluting gases in the air. After falling to the ground, it collects a large amount of accumulated materials from the urban surface and rainwater and sewage pipes, and the pollutant concentration is high. Rainwater storage and regulation collects the initial rainwater by intercepting and collecting it at the end of the region, so as to achieve the "detention" and "storage" of rainwater with high pollution. This can effectively weaken the pollution of initial rainwater runoff and control the pollution of receiving water bodies by initial rainwater. At the same time, it can also effectively reduce the peak flow of rainstorms, dispatch drainage between regions, effectively alleviate urban waterlogging, and efficiently manage rainwater resources. However, a major problem that is inevitable in the process of rainwater storage and regulation is that the initial rainwater carries a large amount of impurities and pollutants. The initial rainwater is prone to deposit pollutants at the bottom during storage in the storage tank. Under anaerobic conditions, the long-term deposition of pollutants may stink and produce toxic and harmful gases, which not only affects the subsequent operation, but also poses a safety hazard.

[0003] Therefore, designing a rainwater storage tank flushing and silting facility that can achieve effective mixing, low cost and rapid discharge of cement mixture has become a technical problem that needs to be solved urgently by technical personnel in this field. Utility Model Content

[0004] In view of the above-mentioned shortcomings or deficiencies of the prior art, the technical problem to be solved by the utility model is to provide a rainwater storage tank flushing and silting facility.

[0005] To solve the above technical problems, this application is implemented through the following technical solutions:

[0006] A rainwater storage tank silt flushing facility comprises: a storage tank body, a flushing water tank, a first water inlet pipe, a water outlet pipe, an aeration flushing pipe, an aeration flushing nozzle, a liquid level meter and a PLC controller, wherein the first water inlet pipe is arranged on the side wall of the storage tank body; the water outlet pipe is arranged at the bottom of the storage tank body, the aeration flushing nozzle is connected to the aeration flushing pipe and the aeration flushing nozzle is arranged on the upper side of the bottom of the storage tank body, an electric three-way valve is arranged on the aeration flushing pipe, one end of the aeration flushing pipe is connected to a blower room, the flushing water tank is connected to the aeration flushing pipe through the electric three-way valve, the PLC controller is electrically connected to the electric three-way valve, and a liquid level meter is suspended above the storage tank body.

[0007] Furthermore, the flushing water tank is arranged on one side of the regulating tank body and the upper end of the flushing water tank is sealed.

[0008] Furthermore, one end of the first water inlet pipe is arranged in parallel on the upper side of the regulating tank body, and the other end thereof is close to the side wall of the regulating tank body, and the water inlet of the first water inlet pipe is arranged in the middle and lower part of the regulating tank body.

[0009] Furthermore, the water outlet of the water outlet pipe extends out from the side wall opening along which the regulating tank body is arranged.

[0010] Furthermore, the aeration flushing pipe includes a main pipe and a branch pipe, one end of the main pipe is connected to the blower room, the other end of the main pipe is connected to the branch pipe, the branch pipe is connected to the aeration flushing nozzle, and the aeration flushing nozzle is arranged obliquely.

[0011] Furthermore, the branch pipes are evenly laid parallel to the bottom of the regulating reservoir body and a plurality of aeration and flushing nozzles are evenly arranged on the branch pipes.

[0012] Furthermore, the branch pipe is arranged in a U-shape or a C-shape.

[0013] Furthermore, a rotating connection portion for adjusting the inclination angle of the aeration flushing nozzle is provided between the branch pipe and the aeration flushing nozzle.

[0014] Furthermore, the aeration and flushing nozzle comprises a connecting end and an aeration and flushing end, the aeration and flushing end is provided with a plurality of evenly distributed aeration and flushing holes, and the connecting end is rotatably connected to the rotating connection portion.

[0015] Furthermore, the electric three-way valve is arranged between the main pipe of the flushing water tank and the main pipe connected to the blower room.

[0016] Compared with the prior art, this application has the following technical effects:

[0017] (1) In this application, the regulating reservoir body can make full use of the structures and facilities of the original sewage treatment plant, and does not require the construction of a new water storage tank. The structure is simple and the cost is low. The pollutants are effectively mixed in rainwater and removed by a combination of aeration and water flushing. A liquid level gauge is suspended on the upper part of the regulating reservoir, which is conducive to accurately monitoring the water level changes. The regulating reservoir body is equipped with aeration and flushing branch pipes, which are connected to the aeration and flushing nozzles to discharge air and water obliquely downward; when the water level in the regulating reservoir is high, the aeration system is started, and the pollutants are suspended in the water through the action of airflow to prevent them from settling; when the water level in the regulating reservoir is low, the flushing system is started, and the pollutants are mixed with water and discharged through the impact of water flow.

[0018] (2) In the present application, the branch pipe is evenly laid parallel to the main body of the regulating and storage tank and a plurality of aeration flushing nozzles are evenly arranged on the branch pipe, which is conducive to a larger range and more comprehensive mixing of the rainwater and sediment in the main body of the regulating and storage tank by aeration of the initial rainwater, so that impurities and pollutants will not be deposited, thereby reducing the possibility of generating odor and solids.

[0019] (3) In the present application, when the water level in the tank is low, the water in the flushing tank is pumped through the aeration flushing branch pipe to fill the aeration flushing nozzle for high-pressure spraying to remove the sediment in the regulating reservoir body, and finally the cement mixture is discharged from the regulating reservoir through the outlet pipe, thereby improving the dredging and flushing effect of the rainwater regulating reservoir. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Other features, objects and advantages of the present application will become more apparent by reading the detailed description of non-limiting embodiments made with reference to the following drawings:

[0021] Figure 1 : A schematic structural diagram of a rainwater storage tank flushing and silting facility according to an embodiment of the present application;

[0022] Figure 2 : A top view of a rainwater storage tank flushing and silting facility according to an embodiment of the present application;

[0023] Figure 3 : A schematic structural diagram of an aeration flush nozzle according to an embodiment of the present application.

[0024] In the figure: 1 - regulating reservoir body, 2 - first water inlet pipe, 3 - water outlet pipe, 4 - aeration flushing main pipe, 41 - aeration flushing branch pipe, 5 - aeration flushing nozzle, 51 - aeration flushing end, 52 - connecting end, 511 - aeration flushing hole, 6 - liquid level meter, 7 - electric three-way valve, 8 - PLC controller, 9 - blower room, 10 - flushing water tank, 11 - second water inlet pipe, 12 - rotating connection part. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0026] If there are descriptions involving "first", "second", etc. in the embodiments of the utility model, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or suggesting their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in the field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the utility model.

[0027] like Figure 1 As shown, in this embodiment, a rainwater storage tank silt flushing facility includes: a storage tank body 1, a flushing water tank 10, a first water inlet pipe 2, a water outlet pipe 3, an aeration flushing pipe, an aeration flushing nozzle 5, a liquid level meter 6 and a PLC controller 8, wherein the first water inlet pipe 2 is arranged on the side wall of the storage tank body 1; the water outlet pipe 3 is arranged at the bottom of the storage tank body 1, the aeration flushing nozzle 5 is connected to the aeration flushing pipe and the aeration flushing nozzle 5 is arranged on the upper side of the bottom of the storage tank body 1, an electric three-way valve 7 is arranged on the pipe of the aeration flushing pipe, one end of the aeration flushing pipe is connected to the blower room 9, the flushing water tank 10 is connected to the aeration flushing pipe through the electric three-way valve 7, the PLC controller 8 is electrically connected to the electric three-way valve 7, and a liquid level meter 6 is suspended above the storage tank body 1.

[0028] When the water level in the regulating reservoir 1 is high, the aeration system is started, the electric three-way valve 9 is opened to connect to the blower room 9 end, and the electric three-way valve 9 is closed to connect to the flushing water tank 10 end, and the initial rainwater is stirred by aeration to prevent the deposition of pollutants. The pollutants and rainwater are discharged from the regulating reservoir through the outlet pipe 3. When the water level in the pool is low, the water in the flushing water tank 10 is filled with the aeration flushing nozzle 5 through the aeration flushing branch pipe 41 by the pressure pump arranged in the second water inlet pipe 11 for high-pressure spraying to remove the sediment at the bottom of the regulating reservoir, and finally the cement mixture is discharged from the regulating reservoir 1 through the outlet pipe 3, thereby improving the dredging and flushing effect of the rainwater regulating reservoir.

[0029] Preferably, in this embodiment, the rainwater storage tank can be transformed from the original structure of the sewage treatment plant, including but not limited to the natural gas reaction tank, the primary sedimentation tank, the secondary sedimentation tank, etc. Through the above-mentioned arrangement, the structure is simple and the cost is low, and the pollutants mixed in the rainwater can be effectively removed through the combination of aeration and water flushing.

[0030] Preferably, in this embodiment, a mounting bracket is provided above the regulating reservoir body 1, and the liquid level meter 6 is a split ultrasonic liquid level meter installed on the mounting bracket and vertically suspended above the regulating reservoir for real-time monitoring of the liquid level in the reservoir and accurate grasp of the storage conditions of rainwater; wherein, the liquid level meter 6 can also select an explosion-proof float level switch, a glass tube level gauge, a steel belt level gauge, a magnetic column level gauge, a weight detection level gauge, a capacitive level gauge and a radar level gauge, as long as the function of monitoring the water level is realized, and this application does not make specific limitations.

[0031] Furthermore, in this embodiment, the flushing water tank 10 is arranged on one side of the regulating reservoir body 1 and the upper end of the flushing water tank 1 is sealed. The sealing arrangement is conducive to ensuring that the water in the flushing water tank is clean and pollution-free, so as to prevent the flushing water from causing secondary pollution to the regulating reservoir body 1.

[0032] Preferably, in this embodiment, the water in the flushing water tank 10 can be selected from relatively clean mid- to late-stage rainwater.

[0033] Furthermore, in this embodiment, one end of the first water inlet pipe 2 is arranged in parallel on the upper side of the regulating tank body 1, and the other end thereof is close to the side wall of the regulating tank body 1, and the water inlet of the first water inlet pipe 2 is arranged in the middle and lower part of the regulating tank body 1.

[0034] Furthermore, in this embodiment, the water outlet of the water outlet pipe 3 extends out along the side wall opening where the regulating reservoir body 1 is provided.

[0035] Further, in this embodiment, the aeration flushing pipe includes an aeration flushing main pipe 4 and an aeration flushing branch pipe 41, one end of the aeration flushing main pipe 4 is connected to the blower room 9, the other end of the aeration flushing main pipe 4 is connected to the aeration flushing branch pipe 41, the aeration flushing branch pipe 41 is connected to the aeration flushing nozzle 5, and the aeration flushing nozzle 5 is arranged at an angle. Through the above arrangement, the aeration flushing nozzle can be arranged at different angles to maximize the mixing of rainwater and pollutants to prevent their deposition.

[0036] Furthermore, in this embodiment, the aeration and flushing branch pipe 41 is evenly laid parallel to the bottom of the regulating reservoir body 1 and a plurality of aeration and flushing nozzles 5 are evenly arranged on the aeration and flushing branch pipe 41. The above arrangement is conducive to achieving aeration and flushing to the maximum extent and range.

[0037] Furthermore, in this embodiment, the aeration and flushing branch pipe 41 is configured in a U-shape or a C-shape.

[0038] Preferably, if Figure 2As shown, in this embodiment, the aeration flushing branch pipe 41 is arranged in a U-shape, and one end of each aeration flushing branch pipe 41 is connected to an aeration flushing nozzle 5, and the aeration flushing nozzle 5 is arranged at an angle. Through the above arrangement, the aeration flushing nozzle can be arranged at different angles to maximize the mixing of rainwater and pollutants to prevent their deposition.

[0039] Furthermore, in this embodiment, a rotating connection portion 12 for adjusting the inclination angle of the aeration flushing nozzle 5 is provided between the aeration flushing branch pipe 41 and the aeration flushing nozzle 5. Through the above arrangement, it is convenient to adjust the direction angle of the aeration flushing nozzle 5 to any other angle, such as downwardly slanting toward the pool bottom, horizontally toward the pool wall, etc., to avoid dead angles and improve flexibility and practicality.

[0040] Furthermore, if Figure 3 As shown, in this embodiment, the aeration flushing nozzle 5 includes a connection end 52 and an aeration flushing end 51, the aeration flushing end 51 is provided with a plurality of evenly arranged aeration flushing holes 511, and the connection end 52 is rotatably connected to the rotatable connection portion 12. The aeration flushing nozzle 5 can discharge airflow and water flow obliquely downward, forming a certain angle with the bottom of the storage tank. Through the above arrangement, it is advantageous to arrange at different angles to maximize the stirring of rainwater and pollutants to prevent their deposition.

[0041] Furthermore, in this embodiment, the electric three-way valve 7 is arranged between the aeration flushing main pipe 4 of the flushing water tank 10 and the main pipe 11 connected to the blower room 9 .

[0042] In this example, the initial rainwater enters the regulating reservoir 1 through the water inlet pipe 2, and the split ultrasonic level meter 6 monitors the liquid level of the regulating reservoir in real time. When the rainwater storage reaches the rated liquid level of the regulating reservoir 1, the water inlet is stopped. When the regulating reservoir 1 has a high liquid level, aeration begins. The electric three-way valve 7 on the aeration flushing main pipe 4 is opened to connect to the blower room 9 end, and the end connected to the flushing water tank 10 is closed. The initial rainwater is stirred by aeration so that impurities and pollutants will not be deposited, reducing the possibility of generating odor and solids. The pollutants are discharged from the regulating reservoir 1 through the outlet pipe 3 together with the rainwater in a suspended state. When the water level in the pool is low, some pollutants such as silt will inevitably be deposited at the bottom. By closing the electric three-way valve 7 to connect to the blower room 9 end, opening the end connected to the flushing water 10 end, the pressure pump arranged in the second water inlet pipe 11 sprays the water in the flushing water tank 10 with high pressure, and the pollutants such as silt deposited at the bottom of the regulating reservoir 1 are washed away. Finally, the cement mixture is discharged from the regulating reservoir 1 through the outlet pipe 3.

[0043] Compared with the prior art, this application has the following technical effects:

[0044] In this application, the regulating reservoir body can make full use of the structures and facilities of the original sewage treatment plant, and does not require the construction of a new water storage tank. The structure is simple and the cost is low. The pollutants are effectively mixed in rainwater and removed by combining aeration and water flushing. A liquid level gauge is suspended on the upper part of the regulating reservoir, which is conducive to accurately monitoring water level changes. The regulating reservoir body is equipped with aeration and flushing branch pipes, which are connected to aeration and flushing nozzles to discharge air and water obliquely downward; when the water level in the regulating reservoir is high, the aeration system is started, and the pollutants are suspended in the water through the action of airflow to prevent them from settling; when the water level in the regulating reservoir is low, the flushing system is started, and the pollutants are mixed with water and discharged through the impact of water flow.

[0045] In the present application, the branch pipe is evenly laid parallel to the regulating and storage tank body and a plurality of aeration flushing nozzles are evenly arranged on the branch pipe, which is conducive to a larger range and more comprehensive mixing of the rainwater and sediment in the regulating and storage tank body by aeration of the initial rainwater, so that impurities and pollutants will not be deposited, thereby reducing the possibility of generating odor and solids.

[0046] In the present application, when the water level in the pool is low, the water in the flushing water tank is pumped through the aeration flushing branch pipe to fill the aeration flushing nozzle for high-pressure spraying to remove the sediment in the regulating and storage tank body, and finally the cement mixture is discharged from the regulating and storage tank through the outlet pipe, thereby improving the desilting and flushing effect of the rainwater regulating and storage tank. The above embodiments are only used to illustrate the technical solution of the present application and are not limited thereto. The present application is described in detail with reference to the preferred embodiments. Those skilled in the art should understand that the technical solution of the present application can be modified or equivalently replaced without departing from the spirit and scope of the technical solution of the present application, and should be included in the scope of the claims of the present application.

Claims

1. A rainwater storage pond flushing and silting facility, characterized in that: include: A regulating tank body, a flushing water tank, a first water inlet pipe, a water outlet pipe, an aeration flushing pipe, an aeration flushing nozzle, a liquid level gauge and a PLC controller, wherein the first water inlet pipe is arranged on the side wall of the regulating tank body; the water outlet pipe is arranged at the bottom of the regulating tank body, the aeration flushing nozzle is connected to the aeration flushing pipe and the aeration flushing nozzle is arranged on the upper side of the bottom of the regulating tank body, an electric three-way valve is arranged on the aeration flushing pipe, one end of the aeration flushing pipe is connected to the blower room, the flushing water tank is connected to the aeration flushing pipe through the electric three-way valve, the PLC controller is electrically connected to the electric three-way valve, and a liquid level gauge is suspended above the regulating tank body.

2. The rainwater storage tank flushing and silting facility according to claim 1, characterized in that: The flushing water tank is arranged on one side of the regulating tank body and the upper end of the flushing water tank is sealed.

3. The rainwater storage tank flushing and silting facility according to claim 1, characterized in that: One end of the first water inlet pipe is arranged in parallel on the upper side of the regulating tank body, and the other end thereof is close to the side wall of the regulating tank body, and the water inlet of the first water inlet pipe is arranged in the middle and lower part of the regulating tank body.

4. The rainwater storage tank flushing and silting facility according to claim 1, characterized in that: The water outlet of the water outlet pipe extends out along the side wall opening where the regulating tank body is arranged.

5. The rainwater storage tank flushing and silting facility according to any one of claims 1 to 4, characterized in that: The aeration flushing pipe comprises a main pipe and a branch pipe, one end of the main pipe is connected to the blower room, the other end of the main pipe is connected to the branch pipe, the branch pipe is connected to the aeration flushing nozzle, and the aeration flushing nozzle is inclined.

6. The rainwater storage tank flushing and silting facility according to claim 5, characterized in that: The branch pipes are evenly laid parallel to the bottom of the regulating reservoir body and a plurality of aeration and flushing nozzles are evenly arranged on the branch pipes.

7. The rainwater storage tank flushing and silting facility according to claim 6, characterized in that: The branch pipe is arranged in a U-shape or a C-shape.

8. The rainwater storage tank flushing and silting facility according to claim 7, characterized in that: A rotating connection part for adjusting the inclination angle of the aeration flushing nozzle is also provided between the branch pipe and the aeration flushing nozzle.

9. The rainwater storage tank flushing and silting facility according to claim 8, characterized in that: The aeration and flushing nozzle comprises a connecting end and an aeration and flushing end, the aeration and flushing end is provided with a plurality of evenly distributed aeration and flushing holes, and the connecting end is rotatably connected to the rotating connection part.

10. The rainwater storage tank flushing and silting facility according to claim 9, characterized in that: The electric three-way valve is arranged between the main pipe of the flushing water tank and the main pipe connected to the blower room.

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