Efficient adjustable anaerobic water distribution system

Abstract

The utility model relates to an efficient adjustable anaerobic water distribution system which is characterized in that a hydrolysis water distribution system is arranged at the upper end of a hydrolysis acidification unit, a plurality of hydrolysis water distribution pipes are arranged on the lower side of the hydrolysis water distribution system and are communicated with the bottom of a cavity of the hydrolysis acidification unit, and an anaerobic water distribution system is arranged at the upper end of an anaerobic unit; the anaerobic water distribution system comprises a middle channel and anaerobic water distribution channels, the middle channel is arranged on the side, connected with the hydrolytic acidification unit, of the anaerobic unit, all the anaerobic water distribution channels are communicated with the middle channel, and a plurality of anaerobic water distribution pipes are arranged on the lower side of each anaerobic water distribution channel and communicated with the bottom of a cavity of the anaerobic unit. A water outlet is formed in the upper end of the side, connected with the anaerobic unit, of the hydrolytic acidification unit, the upper end of the anaerobic unit is lower than the upper end of the hydrolytic acidification unit, and the middle channel is arranged below the water outlet. According to the utility model, efficient and uniform water distribution of the hydrolytic acidification unit and the anaerobic unit can be realized, the overall energy consumption of the equipment is reduced, the equipment volume is not additionally increased, and the integrated design requirement of the equipment can be met.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of sewage treatment, and specifically to an efficient adjustable anaerobic water distribution system. BACKGROUND

[0002] Hydrolysis acidification + anaerobic process is a common process in sewage treatment, and many sewage treatment equipment now has integrated design requirements. However, in the current integrated sewage treatment equipment, the hydrolysis acidification tank and the anaerobic tank are connected through the reserved opening on the partition or through the pipeline, which is not conducive to uniform water distribution, and since the tank bodies are integrally connected, it also increases the operating energy consumption of the equipment to drive water flow.

[0003] For example, the CN211367324U patent discloses an integrated sewage treatment device, which includes a conditioning tank, a hydrolysis acidification tank, an anaerobic tank, an anoxic tank, and other structures formed by a partition wall. The hydrolysis acidification tank, anaerobic tank, and anoxic tank are connected in sequence through the water passage holes on the partition wall. For example, the CN213295074U patent discloses a new intelligent sewage treatment equipment, which includes a prefabricated box body with a reinforced hydrolysis acidification tank, an anaerobic tank, and an aerobic tank arranged from left to right. The reinforced hydrolysis acidification tank and the anaerobic tank are connected through the reserved opening of the partition. Utility model content

[0004] The utility model aims at providing an efficient adjustable anaerobic water distribution system, which can realize efficient and uniform water distribution of the hydrolysis acidification unit and the anaerobic unit, reduce the overall energy consumption of the equipment, and does not increase the equipment size, meeting the needs of integrated design of the equipment.

[0005] The utility model aims to achieve the following technical solutions:

[0006] The application discloses a high-efficiency adjustable anaerobic water distribution system, which comprises a hydrolytic acidification unit and an anaerobic unit, wherein the upper end of the hydrolytic acidification unit is provided with a hydrolytic water distribution system, the lower side of the hydrolytic water distribution system is provided with a plurality of hydrolytic water distribution pipes which are communicated with the bottom of the cavity of the hydrolytic acidification unit, the upper end of the anaerobic unit is provided with an anaerobic water distribution system, the anaerobic water distribution system comprises an intermediate channel and anaerobic water distribution channels, the intermediate channel is arranged on the side of the anaerobic unit connected with the hydrolytic acidification unit, each anaerobic water distribution channel is communicated with the intermediate channel, the lower side of the anaerobic water distribution channel is provided with a plurality of anaerobic water distribution pipes which are communicated with the bottom of the cavity of the anaerobic unit, the side of the hydrolytic acidification unit connected with the anaerobic unit is provided with a water outlet at the upper end, the upper end of the anaerobic unit is lower than the upper end of the hydrolytic acidification unit, and the intermediate channel is arranged below the water outlet.

[0007] The hydrolytic water distribution system comprises a water inlet device and a hydrolytic water distribution channel, the hydrolytic water distribution channel comprises water distribution branch channels and communication channels, adjacent water distribution branch channels are communicated through corresponding communication channels, the lower side of each water distribution branch channel is provided with a hydrolytic water distribution pipe, and any communication channel is communicated with the water inlet device.

[0008] The upper end of the hydrolytic acidification unit is internally provided with a plurality of hydrolytic collection grooves, the tail end of each hydrolytic collection groove is communicated with a corresponding water outlet, and each hydrolytic water distribution pipe passes through the space between adjacent hydrolytic collection grooves.

[0009] The upper end of the anaerobic unit is internally provided with a plurality of anaerobic collection grooves, the side of the anaerobic unit away from the hydrolytic acidification unit is provided with a water outlet channel, the tail end of each anaerobic collection groove is communicated with the water outlet channel, and each anaerobic water distribution pipe passes through the space between adjacent anaerobic collection grooves.

[0010] The anaerobic unit is internally provided with a three-phase separator, and the anaerobic water distribution pipe extends to the bottom of the unit cavity after passing through the three-phase separator.

[0011] The anaerobic unit is provided with a gas collection system, the gas collection system comprises gas-liquid separation tanks, gas inlet pipelines and gas discharge pipelines, the gas-liquid separation tanks are arranged at the upper end of the anaerobic unit and connected with the three-phase separator through the gas inlet pipelines, and the upper end of each gas-liquid separation tank is communicated with the gas discharge pipelines.

[0012] The anaerobic unit is provided with a sludge backflow system, the sludge backflow system comprises backflow inlet sludge pipes, backflow branch pipes, a backflow main pipe and a backflow outlet sludge pipe, the backflow inlet sludge pipes and the backflow outlet sludge pipe are arranged in the anaerobic unit, one end of the backflow branch pipe is connected with a corresponding backflow inlet sludge pipe, the other end is connected with the backflow main pipe, the backflow main pipe is connected with the backflow outlet sludge pipe, and the backflow main pipe is provided with a backflow sludge pump.

[0013] The anaerobic water distribution pipe is provided with an inlet port at the upper end, and the bottom of the anaerobic water distribution channel is provided with a pre-embedded pipe for the anaerobic water distribution pipe to pass through. The pre-embedded pipe is provided with a limiting ring at the upper end, and the anaerobic water distribution pipe is provided with a limiting flange at the upper end to abut against the limiting ring for limiting. The limiting flange is connected to the inlet port through a telescopic adjustment pipe.

[0014] The advantages and positive effects of this utility model are as follows:

[0015] 1. In this utility model, multiple sets of hydrolysis water distribution pipes and anaerobic water distribution pipes are evenly arranged at the upper end of the hydrolysis acidification unit and the upper end of the anaerobic unit according to the tank conditions. The spacing, length, and number of each set of water distribution pipes can be further designed according to the tank conditions of the unit, thereby ensuring efficient and uniform water distribution in the hydrolysis acidification unit and the anaerobic unit, and thus ensuring sufficient contact between mud and water. The hydrolysis water distribution system includes multiple water distribution branches, and each water distribution branch is equipped with a hydrolysis water distribution pipe on its lower side, thereby achieving a uniform arrangement of each set of hydrolysis water distribution pipes. The anaerobic water distribution system includes multiple anaerobic water distribution channels, and each anaerobic water distribution channel is equipped with an anaerobic water distribution pipe on its lower side, thereby achieving a uniform arrangement of each set of anaerobic water distribution pipes.

[0016] 2. This utility model sets up an intermediate channel between the hydrolysis acidification unit and the anaerobic unit to achieve water flow connection. The upper end of the anaerobic unit is lower than the upper end of the hydrolysis acidification unit, and the intermediate channel is located below the outlet of the hydrolysis acidification unit. After the sewage is output from the hydrolysis acidification unit, it automatically flows into the intermediate channel by gravity, and then flows naturally into the anaerobic unit along the intermediate channel and the anaerobic water distribution channel. This process does not require any power drive, thereby reducing the overall energy consumption of the equipment.

[0017] 3. The anaerobic water distribution pipe of this utility model is provided with an adjustable water inlet port at the upper end, which can adjust the liquid level flowing into the water inlet port in the anaerobic water distribution channel, thereby improving the flexibility of use and control. Attached Figure Description

[0018] Figure 1 This is a top view of the present invention.

[0019] Figure 2 for Figure 1 AA view in

[0020] Figure 3 for Figure 1 BB view in

[0021] Figure 4 for Figure 3 Enlarged view of point I in the image.

[0022] Wherein, 1 is a hydrolysis acidification unit, 101 is a water outlet, 102 is a hydrolysis collection tank, 2 is an anaerobic unit, 3 is a hydrolysis water distribution system, 301 is a water inlet device, 302 is a hydrolysis water distribution channel, 3021 is a water distribution branch channel, 3022 is a communication channel, 303 is a hydrolysis water distribution pipe, 4 is an anaerobic water distribution system, 401 is an intermediate channel, 402 is an anaerobic water distribution channel, 403 is an anaerobic water distribution pipe, 4031 is a water inlet port, 4032 is an expansion adjusting pipe, 4033 is a limiting flange, 4034 is a limiting ring, 4035 is a pre-buried pipe, 5 is a sludge backflow system, 501 is a backflow main pipe, 502 is a backflow branch pipe, 503 is a backflow sludge inlet pipe, 504 is a backflow sludge outlet pipe, 6 is a gas collection system, 601 is a gas-liquid separation tank, 602 is an exhaust pipe, 603 is a gas inlet pipe, 7 is a three-phase separator, 8 is an anaerobic collection tank, and 9 is a water outlet channel. DETAILED DESCRIPTION

[0023] The utility model will be further described in connection with the drawings.

[0024] As shown in the utility model, the hydrolysis acidification unit 1 is provided with the hydrolysis water distribution system 3 at the upper end, and a plurality of hydrolysis water distribution pipes 303 are arranged at the lower side of the hydrolysis water distribution system 3 and communicated with the bottom of the cavity of the hydrolysis acidification unit 1. Figures 1 to 4 The anaerobic water distribution system 4 is arranged at the upper end of the anaerobic unit 2 and comprises the intermediate channel 401 and the anaerobic water distribution channel 402. Figure 2 The upper end of the anaerobic unit 2 is lower than the upper end of the hydrolysis acidification unit 1, and the intermediate channel 401 is arranged below the water outlet 101.

[0025] During operation of the utility model, the sewage is output from the lower end of the hydrolysis water distribution pipe 303 into the hydrolysis acidification unit 1, then flows upward and overflows into the intermediate channel 401 through the water outlet 101, then enters the anaerobic water distribution channels 402, and finally is output from the lower end of the anaerobic water distribution pipe 403 into the anaerobic unit 2. Figure 1As shown, in the embodiment, a plurality of hydrolysis water distribution pipes 303 and anaerobic water distribution pipes 304 can be uniformly arranged on the upper end of the hydrolysis acidification unit 1 and the upper end of the anaerobic unit 2 according to the pool body, and the spacing, length, number and the like of each group of water distribution pipes can be further designed according to the pool body, so as to ensure efficient and uniform water distribution of the hydrolysis acidification unit 1 and the anaerobic unit 2, and then ensure sufficient contact between the sludge and water, and secondly, the whole system can reduce the energy consumption for driving the water flow, wherein Figure 2 As shown, the sewage is automatically flowed into the intermediate channel 401 by gravity after being output from the hydrolysis acidification unit 1, and then naturally flows along the intermediate channel 401 and the anaerobic water distribution channel 402 into the anaerobic unit 2, and this process does not need any power driving, thereby reducing the overall energy consumption of the equipment system. Thirdly, the utility model can not increase the equipment volume, and can meet the integrated design requirements of the sewage treatment equipment.

[0026] As shown, Figures 1 to 2 In the embodiment, the hydrolysis water distribution system 3 comprises a water inlet device 301 and a hydrolysis water distribution channel 302, wherein the hydrolysis water distribution channel 302 comprises a water distribution branch channel 3021 and a communication channel 3022, and adjacent water distribution branch channels 3021 are communicated through corresponding communication channels 3022, each water distribution branch channel 3021 is provided with a hydrolysis water distribution pipe 303 on the lower side, and any communication channel 3022 is communicated with the water inlet device 301. The water inlet device 301 can be selected according to actual needs, such as a water inlet pump, a pulse water distributor and the like.

[0027] As shown, Figures 1 to 2 In the embodiment, a plurality of hydrolysis collection grooves 102 are arranged in the upper end of the hydrolysis acidification unit 1, and the tail end of each hydrolysis collection groove 102 is communicated with a corresponding water outlet 101, and each hydrolysis water distribution pipe 303 passes through the space between adjacent hydrolysis collection grooves 102, and the water flow first overflows into the hydrolysis collection groove 102 and then is output from the water outlet 101. In addition, as shown, Figure 3 The upper end of the anaerobic unit 2 is provided with a plurality of anaerobic collection grooves 8, as shown, Figure 2 As shown, the side of the anaerobic unit 2 away from the hydrolysis acidification unit 1 is provided with a water outlet channel 9, and the tail end of each anaerobic collection groove 8 is communicated with the water outlet channel 9, and each anaerobic water distribution pipe 403 passes through the space between adjacent anaerobic collection grooves 8, and the water flow first overflows into the anaerobic collection groove 8 and then is discharged from the water outlet channel 9 into the next process. The hydrolysis collection groove 102 and the anaerobic collection groove 8 have the same structure, which is a concave notch.

[0028] As shown, Figures 2 to 3As shown, in this embodiment, the anaerobic unit 2 is equipped with a three-phase separator 7, and the anaerobic water distribution pipe 403 extends to the bottom of the unit cavity after passing through the three-phase separator 7. The three-phase separator 7 is a technology known in the art, which can realize the separation of gas, water and mud into three phases. For example, the three-phase separator in CN210340467U can be used.

[0029] like Figures 1 to 3 As shown, the anaerobic unit 2 is equipped with a gas collection system 6, which includes a gas-liquid separator 601, an inlet pipe 603, and an exhaust pipe 602. The gas-liquid separator 601 is located at the upper end of the anaerobic unit 2 and is connected to the three-phase separator 7 through the inlet pipe 603. The gas separated by the three-phase separator 7 enters the corresponding gas-liquid separator 601 through the inlet pipe 603. The liquid in the tank falls due to gravity, while the gas continues to rise, thereby achieving gas-liquid separation. The upper end of each gas-liquid separator 601 is connected to the exhaust pipe 602. The rising gas is collected and discharged through the exhaust pipe 602 and flows into a water seal tank or other equipment.

[0030] like Figures 1 to 3 As shown, the anaerobic unit 2 is equipped with a sludge return system 5, which includes a sludge return pipe 503, a sludge return branch pipe 502, a sludge return main pipe 501, and a sludge return outlet pipe 504. The sludge return pipe 503 and the sludge return outlet pipe 504 are both located in the anaerobic unit 2. One end of the sludge return branch pipe 502 is connected to the corresponding sludge return pipe 503, and the other end is connected to the sludge return main pipe 501. The sludge return main pipe 501 is connected to the sludge return outlet pipe 504, and a sludge return pump is provided on the sludge return main pipe 501 to drive the sludge return.

[0031] like Figure 4 As shown, in this embodiment, the anaerobic water distribution pipe 403 has an adjustable-height inlet port 4031 at its upper end. The anaerobic water distribution channel 402 has a pre-embedded pipe 4035 at its bottom for the anaerobic water distribution pipe 403 to pass through. The pre-embedded pipe 4035 has a limiting ring 4034 at its upper end, and the anaerobic water distribution pipe 403 has a limiting flange 4033 at its upper end that abuts against the limiting ring 4034 for limiting. The limiting flange 4033 is connected to the inlet port 4031 via a telescopic adjustment pipe 4032. In this embodiment, the telescopic adjustment pipe 4032 is a PVC expansion joint, a commercially available product. This invention, through the above design, can adjust the liquid level flowing into the inlet port 4031 from the anaerobic water distribution channel 402, thereby improving the flexibility of use and control.

[0032] The working principle of this utility model is as follows:

[0033] In operation, wastewater is controlled by the inlet device 301 in the hydrolysis distribution system 3 to first flow into the hydrolysis distribution channel 302. The hydrolysis distribution channel 302 includes multiple distribution branch channels 3021 evenly arranged according to the tank structure. Each distribution branch channel 3021 has multiple hydrolysis distribution pipes 303 on its lower side, ensuring uniform and efficient water distribution to the hydrolysis acidification unit 1. Water flows out from the lower end of the hydrolysis distribution pipes 303, enters the bottom of the hydrolysis unit 1, flows upwards to react, and then overflows into the hydrolysis collection tank 102 at the upper end of the hydrolysis unit 1. Finally, it overflows into the intermediate channel 401 of the anaerobic distribution system 4 through the outlet 101. Since the upper height of the anaerobic unit 2 is lower than the upper height of the hydrolysis acidification unit 1, and the outlet 101 is located above the intermediate channel 401, the water body... The water automatically flows into the intermediate channel 401 under the influence of gravity, which reduces the overall energy consumption of the equipment driving the water flow. Then, the water in the intermediate channel 401 flows along the anaerobic distribution channel 402 and enters the bottom of the anaerobic unit 2 cavity through the anaerobic water distribution pipe 403. The anaerobic distribution channel 402 and the anaerobic water distribution pipe 403 can also be evenly arranged according to the tank conditions to ensure uniform and efficient water distribution. The water entering the bottom of the anaerobic unit 2 cavity flows upward and reacts with the sludge in the cavity. After passing through the three-phase separator 7, the gas, water and sludge are separated into three phases. The sludge falls back into the anaerobic unit 2 cavity, the gas is collected and discharged through the gas collection system 6, and the water rises through the three-phase separator 7 and overflows into the anaerobic collection tank 8 at the upper end of the anaerobic unit 2, and finally flows into the effluent channel 9 to be discharged into the next process.

[0034] Other examples Figure 4 As shown, this utility model can also flexibly adjust the height of the inlet port 4031 of the anaerobic water distribution pipe 403 in the anaerobic water distribution channel 402 according to actual needs. When adjusting, it is only necessary to drive the inlet port 4031 to move and drive the telescopic adjustment pipe 4032 to extend and retract. The operation is simple and convenient.

Claims

1. A high efficiency adjustable anaerobic water distribution system, characterized by: The application relates to a hydrolytic acidification and anaerobic unit, which comprises a hydrolytic acidification unit (1) and an anaerobic unit (2), wherein the upper end of the hydrolytic acidification unit (1) is provided with a hydrolytic water distribution system (3), the lower side of the hydrolytic water distribution system (3) is provided with a plurality of hydrolytic water distribution pipes (303) which are communicated with the bottom of the cavity of the hydrolytic acidification unit (1), the upper end of the anaerobic unit (2) is provided with an anaerobic water distribution system (4), the anaerobic water distribution system (4) comprises an intermediate channel (401) and an anaerobic water distribution channel (402), the intermediate channel (401) is arranged on the side of the anaerobic unit (2) which is connected with the hydrolytic acidification unit (1), each anaerobic water distribution channel (402) is communicated with the intermediate channel (401), the lower side of the anaerobic water distribution channel (402) is provided with a plurality of anaerobic water distribution pipes (403) which are communicated with the bottom of the cavity of the anaerobic unit (2), the side of the hydrolytic acidification unit (1) which is connected with the anaerobic unit (2) is provided with a water outlet (101), the upper end of the anaerobic unit (2) is lower than the upper end of the hydrolytic acidification unit (1), and the intermediate channel (401) is arranged below the water outlet (101).

2. The high efficiency adjustable anaerobic water distribution system of claim 1, wherein: The hydrolytic water distribution system (3) comprises a water inlet device (301) and a hydrolytic water distribution channel (302), wherein the hydrolytic water distribution channel (302) comprises a water distribution branch channel (3021) and a communication channel (3022), adjacent water distribution branch channels (3021) are communicated through corresponding communication channels (3022), the lower side of each water distribution branch channel (3021) is provided with a hydrolytic water distribution pipe (303), and any communication channel (3022) is communicated with the water inlet device (301).

3. The high efficiency adjustable anaerobic distribution system of claim 1, wherein: The upper end of the hydrolytic acidification unit (1) is internally provided with a plurality of hydrolytic collection grooves (102), and the tail end of each hydrolytic collection groove (102) is communicated with a corresponding water outlet (101), and each hydrolytic water distribution pipe (303) passes through the space between adjacent hydrolytic collection grooves (102).

4. The high efficiency adjustable anaerobic distribution system of claim 1, wherein: The upper end of the anaerobic unit (2) is internally provided with a plurality of anaerobic collection grooves (8), the side of the anaerobic unit (2) which is away from the hydrolytic acidification unit (1) is provided with a water outlet channel (9), and the tail end of each anaerobic collection groove (8) is communicated with the water outlet channel (9), and each anaerobic water distribution pipe (403) passes through the space between adjacent anaerobic collection grooves (8).

5. The high efficiency adjustable anaerobic distribution system of claim 1, wherein: The anaerobic unit (2) is internally provided with a three-phase separator (7), and the anaerobic water distribution pipe (403) extends to the bottom of the unit cavity after passing through the three-phase separator (7).

6. The high efficiency adjustable anaerobic distribution system of claim 5, wherein: The anaerobic unit (2) is provided with a gas collection system (6), the gas collection system (6) comprises a gas-liquid separation tank (601), a gas inlet pipeline (603) and a gas discharge pipeline (602), wherein the gas-liquid separation tank (601) is arranged at the upper end of the anaerobic unit (2) and is connected with the three-phase separator (7) through the gas inlet pipeline (603), and the upper end of each gas-liquid separation tank (601) is communicated with the gas discharge pipeline (602).

7. The high efficiency adjustable anaerobic distribution system of claim 1, wherein: The anaerobic unit (2) is provided with a sludge reflux system (5), the sludge reflux system (5) includes reflux into mud pipe (503), reflux branch pipe (502), reflux main pipe (501) and reflux out mud pipe (504), wherein reflux into mud pipe (503) and reflux out mud pipe (504) are all arranged in anaerobic unit (2), one end of the reflux branch pipe (502) is connected with corresponding reflux into mud pipe (503), the other end is connected with reflux main pipe (501), reflux main pipe (501) is connected with reflux out mud pipe (504), and reflux main pipe (501) is provided with reflux sludge pump.

8. The high efficiency adjustable anaerobic distribution system of claim 1, wherein: The upper end of the anaerobic water distribution pipe (403) is provided with a water inlet port (4031), the bottom of the anaerobic water distribution channel (402) is provided with a pre-embedded pipe (4035) for the anaerobic water distribution pipe (403) to pass through, the upper end of the pre-embedded pipe (4035) is provided with a limiting ring (4034), and the upper end of the anaerobic water distribution pipe (403) is provided with a limiting flange (4033) to limit the limiting ring (4034), and the limiting flange (4033) and the water inlet port (4031) are connected through an extension and contraction adjusting pipe (4032).

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