Pulsed rotational flow uasb water distribution system

Abstract

The utility model relates to sewage treatment technical field especially, more particularly to a kind of pulse cyclone's UASB water distribution system.It includes water distribution pool body, bottom cyclone water distribution device and external reservoir foundation, add pulse water distribution module, circulation backflow module, and set three-phase separator on the upper half of water distribution pool body.Pulse water distribution module realizes intermittent pulse water inlet, cooperates with cyclone water distribution structure to promote wastewater mass transfer efficiency, and collocates self-cleaning nozzle to avoid equipment blockage;Circulation backflow module can circulate backwater, adjust backflow rate, save water and enhance system impact resistance.The system effectively solves the problem of uneven water distribution, has high running stability, energy consumption is reduced by 20% compared with traditional equipment, maintenance cost is low, adapts to high-concentration organic wastewater treatment, and has excellent practicability and economy.

Description

Technical Field

[0001] This utility model relates to the field of wastewater treatment technology, and in particular to a pulsed vortex UASB water distribution system. Background Technology

[0002] UASB (Upflow Anaerobic Sludge Blanket) is a highly efficient anaerobic bioreactor widely used in the treatment of high-concentration organic wastewater (such as in the food, brewing, paper, and chemical industries). Its core feature is the utilization of rising water flow and microorganisms in the anaerobic sludge blanket to degrade organic matter, while simultaneously producing biogas (mainly methane).

[0003] Existing technology, patent announcement number CN215208706U, discloses a specific swirl distribution structure for an anaerobic reactor, which is installed at the bottom of the anaerobic reactor and can evenly distribute the wastewater to be treated to various positions in the anaerobic tank. However, existing swirl distributors typically use a continuous water inlet method, which has certain limitations in terms of mass transfer efficiency and is prone to sludge bed clogging or short-circuiting. In addition, traditional UASB reactors have high energy consumption and weak resistance to shock loads during operation, making it difficult to meet the requirements of high efficiency and stability for the treatment of high-concentration organic wastewater.

[0004] Therefore, it is necessary to design a pulsed vortex UASB water distribution system to solve the above problems. Utility Model Content

[0005] The purpose of this invention is to provide a pulsed vortex UASB water distribution system to overcome the aforementioned shortcomings of the existing technology.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: A pulsed vortex UASB water distribution system includes a water distribution tank, a vortex water distribution device installed at the bottom of the water distribution tank, an external water storage tank, and further includes: A pulse water distribution module is connected to the vortex water distribution device. The pulse water distribution module includes a pulse water distributor and an inlet pipe. The pulse water distributor is connected to the vortex water distribution device through a first pipe, and the inlet pipe is connected to the pulse water distributor through a second pipe. An inlet pump is installed on the inlet pipe, and the inlet pump is connected to an external water storage tank through a third pipe. The circulating return module includes a circulating pump and a return pipe. The circulating pump is connected to the water distribution tank through a fourth pipe, and the return pipe connects the circulating pump to an external water storage tank. The three-phase separator is installed in the upper half of the water distribution tank.

[0007] Preferably, a flow meter and a regulating valve are provided on the return pipe. The flow meter is threadedly installed in the middle of the return pipe, and the regulating valve is connected to the return pipe through a flange to regulate the return rate.

[0008] Preferably, the circulating pump is fixed to the outside of the water distribution tank by bolts, one end of the return pipe is connected to the outlet flange of the circulating pump, and the other end extends to the external water storage tank.

[0009] Preferably, the rotation speed of the vortex water distribution device is driven by a drive component, which includes a motor and a reducer.

[0010] Preferably, the motor is connected to the reducer via a coupling, and the output shaft of the reducer is fixedly connected to the vortex water distribution device.

[0011] Preferably, the first pipeline, the second pipeline, the third pipeline and the fourth pipeline are all made of corrosion-resistant materials, and the connections between the pipelines are made by flanges or threaded connections to ensure sealing.

[0012] Preferably, solenoid valves are installed on the first pipeline, the second pipeline, the third pipeline, the fourth pipeline, the inlet pipeline, and the return pipeline.

[0013] Preferably, the vortex water distribution device uses a self-cleaning nozzle.

[0014] The beneficial effects of this utility model are: This technical solution significantly improves the mixing degree and mass transfer efficiency in the reactor through the synergistic effect of intermittent pulse water inlet and swirling water distribution device, and solves the problem of uneven water distribution in traditional UASB. The disturbance effect of pulsed water flow on the sludge bed effectively prevents clogging or short-circuiting, and improves the operational stability of the system. The self-cleaning nozzles of the vortex water distribution device prevent particulate matter from depositing, reducing maintenance costs; The introduction of the recirculation module reduces the amount of fresh water used, while improving the system's resistance to shock loads. This invention reduces energy consumption by 20% compared to the traditional UASB, and has high economic efficiency and practicality. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of a pulsed vortex UASB water distribution system according to the present invention; In the diagram: 1. Water distribution tank; 2. Swirl water distribution device; 21. Drive assembly; 22. Drive shaft; 3. Pulse water distribution module; 31. Pulse water distributor; 32. Inlet pipe; 33. First pipeline; 34. Inlet pump; 35. Third pipeline; 36. Second pipeline; 4. Circulation return module; 41. Circulation pump; 42. Return pipeline; 43. Fourth pipeline; 5. Three-phase separation module; 6. Water storage tank; 7. Solenoid valve. Detailed Implementation

[0016] Reference Figure 1 A pulsed vortex UASB water distribution system, comprising a water distribution tank 1 for containing wastewater and forming an anaerobic reaction environment; A swirling water distribution device 2 is installed at the bottom of the water distribution tank 1. It includes a conical guide hood, a spiral guide vane, and a drive assembly 21. The drive assembly 21 is connected to the spiral guide vane via a transmission shaft 22, driving the spiral guide vane to rotate to form a swirling flow. The specific structure of the swirling water distribution device 2 can be found in existing literature, specifically the content disclosed in CN 211338964 U, a point-shaped swirling water distributor; or in existing literature, specifically the content disclosed in CN 109354178 B, a swirling water distributor for an anaerobic reactor; or in Baidu Encyclopedia. In addition, to prevent clogging of the rotating water distribution device 2, the swirling water distribution device adopts a self-cleaning nozzle to avoid particulate matter deposition. For specific structure details, please refer to existing technology, specifically the document with application number CN202321516180.X entitled "A Self-Cleaning Nozzle, Spraying Device, and Control System".

[0017] The pulse water distribution module 3, connected to the vortex water distribution device 2, includes a pulse water distributor 31 and an inlet pipe 32; the pulse water distributor 31 is connected to the vortex water distribution device 2 through a first pipe 33, and the inlet pipe 32 is connected to the pulse water distributor 31 through a second pipe 36; an inlet pump 34 is installed on the inlet pipe 32, and the inlet pump 34 is connected to an external water storage tank 6 through a third pipe 35; Other implementation schemes include using multiple sets of water inlet pumps 34 in the pulse water distribution module 3 to adapt to different pulse requirements; or using a siphon system, a high-level water tank with solenoid valves and pneumatic valves, and a gas pulse method. The circulation and return module 4 includes a circulation pump 41 and a return pipe 42. The circulation pump 41 is connected to the water distribution tank 1 via a fourth pipe 43, and the return pipe 42 connects the circulation pump 41 to the external water storage tank 6. A flow meter and a regulating valve are installed on the return pipe 42. The flow meter is threaded into the middle of the return pipe 42, and the regulating valve is connected to the return pipe 42 via a flange to regulate the return rate. The circulation pump 41 is bolted to the ground outside the water distribution tank 1. One end of the return pipe 42 is connected to the outlet flange of the circulation pump 41, and the other end extends to the external water storage tank 6.

[0018] The three-phase separation module 5 is installed in the upper part of the water distribution tank 1 to achieve the separation of gas, liquid and sludge; its function is to efficiently separate the biogas, treated wastewater and anaerobic sludge generated during the reaction process to ensure the stable operation of the reactor. The rotational speed of the vortex water distribution device 2 is adjusted by the drive assembly 21, which includes a motor and a reducer. The motor is connected to the reducer via a coupling, and the output shaft of the reducer is fixedly connected to the vortex water distribution device 2. The first pipe 33, the second pipe 36, the third pipe 35 and the fourth pipe 43 are all made of corrosion-resistant materials, and the connections between the pipes are made by flanges or threaded connections to ensure sealing.

[0019] To ensure the control of the water flow switches between pipelines, solenoid valves 7 are installed on the first pipeline 33, the second pipeline 36, the third pipeline 35, the fourth pipeline 43, the inlet pipeline 32, and the return pipeline 42. The switches are remotely controlled to close via the solenoid valves 7.

[0020] During operation, wastewater first enters the storage chamber of the pulse water distributor 31 through the inlet pipe 32. Under the control of the electromagnetic control unit, the storage chamber opens and closes at set time intervals, thus achieving intermittent pulse water intake. The pulsed water flow enters the vortex water distribution device 2 through the first pipe 33, and the drive component 21 rotates, causing the wastewater to form a vortex and flow upward under its action. The self-cleaning nozzle periodically sprays high-pressure airflow to remove particulate matter deposits on the surface and prevent clogging. In the water distribution tank, the combined effect of the vortex and pulsed water flow improves the mixing degree and mass transfer efficiency within the reactor. Partially treated wastewater is drawn by circulating pump 41 and returned to external storage tank 6 via return pipe 42, forming a water cycle. The return rate is controlled by a regulating valve, and a flow meter monitors the return water volume in real time and transmits the data to the external control system. The gas collection hood of the three-phase separator collects the generated biogas and discharges it through the biogas outlet. The liquid diversion channel guides the treated wastewater to flow out from the drain outlet. Excess sludge settled in the sludge settling zone is periodically discharged by a sludge pump, completing the entire wastewater treatment process.

[0021] The advantages of this utility model are that, through the synergistic effect of intermittent pulse water inlet and swirling water distribution device, this technical solution significantly improves the mixing degree and mass transfer efficiency in the reactor, and solves the problem of uneven water distribution in traditional UASB reactors. The disturbance effect of pulsed water flow on the sludge bed effectively prevents clogging or short-circuiting, and improves the operational stability of the system. The self-cleaning nozzles of the vortex water distribution device prevent particulate matter from depositing, reducing maintenance costs; The introduction of the recirculation module reduces the amount of fresh water used, while improving the system's resistance to shock loads. This invention reduces energy consumption by 20% compared to the traditional UASB, and has high economic efficiency and practicality.

[0022] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A pulsed vortex UASB water distribution system, comprising a water distribution tank, a vortex water distribution device installed at the bottom of the water distribution tank, and an external water storage tank, characterized in that: Also includes A pulse water distribution module is connected to the vortex water distribution device. The pulse water distribution module includes a pulse water distributor and an inlet pipe. The pulse water distributor is connected to the vortex water distribution device through a first pipe, and the inlet pipe is connected to the pulse water distributor through a second pipe. An inlet pump is installed on the inlet pipe, and the inlet pump is connected to an external water storage tank through a third pipe. The circulating return module includes a circulating pump and a return pipe. The circulating pump is connected to the water distribution tank through a fourth pipe, and the return pipe connects the circulating pump to an external water storage tank. The three-phase separator is installed in the upper half of the water distribution tank.

2. The UASB water distribution system with pulsed vortex flow according to claim 1, characterized in that: A flow meter and a regulating valve are installed on the return pipe. The flow meter is threadedly installed in the middle of the return pipe, and the regulating valve is connected to the return pipe through a flange to regulate the return rate.

3. The UASB water distribution system with pulsed vortex flow according to claim 1, characterized in that: The circulating pump is fixed to the outside of the water distribution tank by bolts. One end of the return pipe is connected to the outlet flange of the circulating pump, and the other end extends to the external water storage tank.

4. The UASB water distribution system with pulsed vortex flow according to claim 1, characterized in that: The rotation speed of the vortex water distribution device is driven by a drive component, which includes a motor and a reducer.

5. A pulsed vortex UASB water distribution system according to claim 4, characterized in that: The motor is connected to the reducer via a coupling, and the output shaft of the reducer is fixedly connected to the vortex water distribution device.

6. The UASB water distribution system with pulsed vortex flow according to claim 1, characterized in that: The first, second, third, and fourth pipelines are all made of corrosion-resistant materials, and the connections between the pipelines are made of flanges or threads to ensure sealing.

7. The UASB water distribution system with pulsed vortex flow according to claim 1, characterized in that: Solenoid valves are installed on the first pipeline, the second pipeline, the third pipeline, the fourth pipeline, the inlet pipeline, and the return pipeline.

8. The UASB water distribution system with pulsed vortex flow according to claim 1, characterized in that: The vortex water distribution device uses self-cleaning nozzles.

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