Uniform water distribution device applied to reaction and precipitation integrated biological tank

Abstract

The utility model provides a water distribution device applied to a reaction precipitation integrated biological tank, which comprises a water inlet distribution system and a water outlet pipeline system, the water inlet distribution system is positioned on one side of a tank body and consists of a water inlet, a water inlet channel and a distribution weir, and the water outlet pipeline system is positioned behind the weir and consists of a water outlet and a water outlet channel. The water outlet pipeline system comprises a water outlet pipeline, a water outlet hole, a pipeline sleeve and a pipeline support. The water distribution device can solve the problem of non-uniform water distribution of a water distribution system of the reaction and precipitation integrated biological tank, improves the operation efficiency of subsequent reaction and precipitation integrated equipment, and reduces the maintenance amount of the equipment.

Description

Technical Field

[0001] This utility model belongs to the field of wastewater treatment and relates to a uniform water distribution device applied to an integrated biological reaction and sedimentation tank. Background Technology

[0002] With the increasing stringency of national environmental protection requirements, wastewater treatment standards are becoming increasingly stringent. This not only raises the requirements for wastewater treatment but also extends the treatment process. Faced with increasingly scarce land resources, how to achieve efficient and environmentally friendly wastewater treatment within limited space has become an urgent problem to be solved. Against this backdrop, integrated biological reaction and sedimentation tanks have emerged. This new type of wastewater treatment facility integrates biological treatment and sedimentation processes within the same tank, significantly reducing the land area required, simplifying the treatment process, and improving treatment efficiency, achieving a win-win situation for both economic benefits and environmental protection.

[0003] The integrated reaction-sedimentation biological tank is a high-efficiency wastewater treatment device that integrates biological treatment and sedimentation functions. It combines the advantages of traditional activated sludge processes and sedimentation tanks, achieving a high degree of integration in the wastewater treatment process through optimized design. This process saves space by transforming the aerobic zone of the traditional biological treatment section into an aerobic sedimentation zone, thus reducing the need for a secondary sedimentation tank and minimizing land occupation.

[0004] In integrated biological reaction and sedimentation tanks, water inlet is mostly distributed using sleeve valves. Due to the inherent limitations of the equipment, it is difficult to achieve uniform water distribution under low-resistance conditions, resulting in uneven flow into the perforated distribution pipe. Furthermore, the maintenance workload for sleeve valves is significant; a problem with any set of sleeve valves can cause changes in the operating conditions of the entire reaction module series, reducing stability. Utility Model Content

[0005] The purpose of this invention is to provide a water distribution device for an integrated reaction and sedimentation biological tank, which solves the problem of uneven water distribution in the water distribution system of the integrated reaction and sedimentation biological tank, improves the operating efficiency of subsequent integrated reaction and sedimentation equipment, and reduces the amount of equipment maintenance.

[0006] A water distribution device for an integrated reaction and sedimentation biological tank is characterized by comprising an inlet distribution system and an outlet pipeline system. The inlet distribution system is located on one side of the tank and consists of an inlet, an inlet channel, and a distribution weir. The outlet pipeline system is located behind the weir and includes an outlet pipeline, an outlet hole, a pipeline sleeve, and a pipeline support.

[0007] Preferably, each distribution weir includes a set of weir plates, and each set of weir plates corresponds to a water outlet pipe.

[0008] Preferably, an air mixing system is further provided, which is located at the bottom of the water inlet channel and has aeration holes on the pipe.

[0009] Preferably, the crest of the distribution weir has a uniform height and is equipped with an adjustable weir plate.

[0010] Preferably, a water outlet pipe is installed behind the weir, descending to near the bottom of the pool and extending from the side of the water distribution well into the entire interior of the pool.

[0011] Preferably, water distribution holes are provided on the water outlet pipe at 4m intervals, with the opening direction vertically downward.

[0012] Preferably, the weir plate of the water inlet distribution system is a metal weir plate, which is adjustable, and the water level can be precisely controlled by adjusting the height of the weir plate.

[0013] Preferably, an aeration pipe is installed at the bottom of the water inlet channel, 15cm away from the side wall.

[0014] Compared with the existing sleeve valve water distribution method, the uniform water distribution device of this utility model has the following advantages:

[0015] By setting up a distribution weir, the impact of incoming water can be reduced, while ensuring the uniformity of water distribution and reducing head loss.

[0016] The number of devices is reduced, thus decreasing the frequency and workload of inspection and maintenance;

[0017] An air mixing system is installed at the bottom to prevent sludge from accumulating. Attached Figure Description

[0018] Figure 1 This is a plan view of the uniform water distribution device of this utility model;

[0019] Figure 2 This is a cross-sectional view (AA) of the uniform water distribution device of this utility model;

[0020] Figure 3 This is a schematic diagram of the distribution weir of the uniform water distribution device of this utility model.

[0021] The diagram labels are: A - Water inlet distribution system, B - Water outlet piping system, C - Air mixing system.

[0022] Symbol markings: 1-Inlet, 2-Distribution weir, 3-Outlet pipe, 4-Outlet hole, 5-Aeration pipe, 6-Aeration hole, 7-Pipe sleeve, 8-Pipe support Detailed Implementation

[0023] This invention can be used in structures for multi-point water distribution in sewage treatment plants to solve the problem of uneven water distribution by sleeve valves. This invention is illustrated using an integrated biological reaction and sedimentation tank as an example, but it is also applicable to other tanks with the same requirements.

[0024] Combination Figure 1 , 2 Further explanation of the uniform water distribution device of this utility model, applied to the uniform water distribution process of an integrated reaction and sedimentation biological tank, includes an inlet water distribution system A and an outlet water pipeline system B. An air mixing system C is provided to prevent bottom sludge deposition. The air mixing system C corresponds to and serves the inlet water distribution system A; the inlet water distribution system A consists of an inlet 1, an inlet channel, and a distribution weir 2; the outlet water pipeline system B consists of an outlet water pipeline 3, an outlet hole 4, a pipe sleeve 7, and a pipe support 8; the air mixing system consists of an aeration pipe 5 and an aeration hole 6.

[0025] The incoming water flows through the inlet and rises to the distribution weir, where it is distributed. The weir plates can be adjusted to ensure uniform water distribution.

[0026] During normal operation of the integrated reaction and sedimentation biological tank, the effluent from the previous stage enters the subsequent inlet channel through inlet 1. Multiple distribution weirs 2 are installed inside the channel. The incoming water flows up through inlet 1 to the distribution weirs 2, where it is distributed. Adjustable weir plates ensure uniform water distribution. Distribution weirs 2 are as follows... Figure 3 As shown, each distribution weir 2 includes a set of weir plates, and each set of weir plates corresponds to a water outlet pipe 3.

[0027] After passing under the intake channel, the water flows over the top of the weir. The top of the weir has a uniform height and is equipped with adjustable weir plates to ensure that the water level at the outlet in front of the weir and the water head above the weir are the same.

[0028] During normal operation of the integrated biological reaction and sedimentation tank, water flows into the inlet channel through inlet 1. Due to the presence of distribution weirs 2 within the channel, a water-turning weir system is used, where water is turned over from the outside of the weirs on both sides to the inside. The number of weirs determines the number of water distribution points. After distribution, the water volume is evenly distributed and enters the outlet pipe 3. The reaction unit uses pipe distribution, with the pipes lowered to near the bottom of the tank and then arranged horizontally, running through the entire lower section. Outlet holes 4 are arranged on the outlet pipe 3 at 4m intervals to ensure uniform water distribution. Simultaneously, the openings of the outlet holes are vertically downwards to ensure water flow stability. The outlet pipe 3 crosses the distribution weir 2 using sleeves 7, and is supported by pipe supports 8 when laid at the bottom of the tank. The inlet channel is long and narrow, easily accumulating sludge; therefore, an aeration pipe 5 is installed at the bottom of the channel, 15cm from the side wall. Aeration holes are arranged above the aeration pipe to agitate the accumulated sludge in the tank.

[0029] In this utility model example, the uniform water distribution device is used for water distribution in the integrated reaction and sedimentation biological tank to solve the problem of uneven water distribution. However, this utility model is not limited to the water distribution of the integrated reaction and sedimentation biological tank. This device can be used in any location that requires multi-series distribution flow and is within the protection scope of this utility model.

[0030] The above embodiments are merely examples for clearly illustrating the present invention and are not intended to limit the implementation of the present invention. Those skilled in the art will recognize that other variations or modifications can be made based on the following description, and these obvious variations or modifications arising from the spirit of the present invention are still within the protection scope of the present invention.

Claims

1. A uniform water distribution device for use in an integrated reaction and sedimentation biological tank, characterized in that: It includes an inlet water distribution system and an outlet water pipeline system. The inlet water distribution system is located on one side of the pool and consists of an inlet, an inlet channel, and a distribution weir. The outlet water pipeline system is located behind the weir and includes an outlet water pipe, an outlet hole, a pipe sleeve, and a pipe support.

2. The uniform water distribution device for an integrated reaction and sedimentation biological tank according to claim 1, characterized in that: Each distribution weir consists of a set of weir plates, and each set of weir plates corresponds to a water outlet pipe.

3. The uniform water distribution device applied to an integrated reaction and sedimentation biological tank according to claim 1, characterized in that: An air mixing system is further provided, which is located at the bottom of the water inlet channel and has aeration holes on the pipe.

4. The uniform water distribution device applied to an integrated reaction and sedimentation biological tank according to claim 1, characterized in that: The distribution weir has a uniform height at its crest and is equipped with adjustable weir plates.

5. The uniform water distribution device applied to an integrated reaction and sedimentation biological tank according to claim 1, characterized in that: A water outlet pipe is installed behind the weir, descending to near the bottom of the pool and extending from the side of the water distribution well into the entire interior of the pool.

6. The uniform water distribution device applied to an integrated reaction and sedimentation biological tank according to claim 1, characterized in that: Water distribution holes are installed at 4m intervals on the water outlet pipe, with the openings pointing vertically downwards.

7. The uniform water distribution device for an integrated reaction and sedimentation biological tank according to claim 1, characterized in that: The weir plate of the water inlet distribution system is a metal weir plate, which is adjustable. The water level can be precisely controlled by adjusting the height of the weir plate.

8. The uniform water distribution device applied to an integrated reaction and sedimentation biological tank according to claim 1, characterized in that: An aeration pipe is installed at the bottom of the water inlet channel, 15cm away from the side wall.

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