Two-inlet and two-outlet type water outlet mixing well capable of flexibly distributing water

Abstract

The utility model discloses a two-in and two-out water outlet mixing well capable of flexibly distributing water. The two-in and two-out water outlet mixing well comprises an overflow bin and a mixing bin, the mixing bin receives upstream pretreatment effluent through a first water inlet, water flowing through the mixing bin is discharged to an aeration desilting basin of a sewage treatment plant through a first water outlet, and a conversion gate is arranged between the mixing bin and the overflow bin; one side of the overflow bin is connected with the mixing bin, a plurality of water pump water outlet bins are arranged on the other side of the overflow bin in the length direction, a second water outlet and a second water outlet control gate are arranged on the side wall connected with the mixing bin, and the overflow bin is connected with a main water distribution well of a sewage treatment plant through the second water outlet; the side wall, back on to the overflow bin, of each water pump water outlet bin receives water discharged by the lifting pump of the storage pond through a second water inlet and is provided with a water pump water outlet control gate, and an overflow weir is arranged between the water pump water outlet bin and the overflow bin. According to the utility model, different operation modes can be realized by adjusting the control valve according to the requirements of different time periods or different processes.

Description

Technical Field

[0001] This utility model relates to the field of wastewater treatment technology, and in particular to a two-inlet, two-outlet effluent mixing well with flexible water distribution. Background Technology

[0002] Drainage systems are crucial municipal infrastructure for modern urban development, and effluent wells are common node structures within drainage system plants and stations. In recent years, with the growing acceptance of the concept of resilient cities, this idea has brought numerous new challenges to urban drainage systems. Against this backdrop, there is an urgent need to optimize the connections between large-scale wastewater treatment systems and build a more efficient urban drainage network to meet the needs of resilient city construction. To better achieve interconnection, interoperability, and complementarity among urban drainage systems, the operation of wastewater pipe networks and plants / stations has become highly complex, placing higher demands on traditional structural construction methods.

[0003] Traditional effluent wells are mostly single-source or single-outflow wells. In order to better manage sewage, multiple diversion wells or distribution wells are often needed to be built inside the plant to achieve sewage allocation under different operating modes.

[0004] The design of effluent wells in wastewater treatment systems is relatively simple, and different process flows often require the construction of separate effluent wells or distribution wells. When a wastewater system malfunctions, it is difficult to flexibly adjust the wastewater discharge route, which can easily lead to wastewater accumulation or overflow. In situations with multiple inflow directions, multiple outflow channels, or differentiated water distribution for different operating water levels, traditional effluent wells cannot accurately allocate water volume according to actual needs, which may cause uneven water distribution in different areas and affect the overall operating efficiency of the wastewater treatment system.

[0005] Moreover, due to limitations such as land use, underground space, and geographical conditions, achieving different sewage operation modes through intensive structures is one of the key challenges in the current construction of sewage drainage systems.

[0006] Therefore, how to achieve flexible water distribution through effluent mixing wells can optimize the process flow, alleviate the shortage of land within the plant, reduce the difficulty of site selection, reduce the number of structures inside the sewage treatment plant, and realize the intensive design of sewage treatment structures and optimize the process flow has become a technical problem that urgently needs to be solved by those skilled in the art. Utility Model Content

[0007] In view of the above-mentioned defects of the prior art, the present invention provides a two-inlet, two-outlet effluent mixing well with flexible water distribution. The purpose of this invention is to optimize the process flow, alleviate the shortage of land within the plant, reduce the difficulty of site selection, reduce the number of structures inside the sewage treatment plant, and achieve intensive design of sewage treatment structures and optimization of the process flow.

[0008] To achieve the above objectives, this utility model discloses a two-inlet, two-outlet water mixing well with flexible water distribution; characterized in that it includes an overflow chamber and a mixing chamber.

[0009] The mixing chamber is rectangular and has a first inlet at one end to receive pretreated effluent from upstream. The other end has a first outlet to discharge the water flowing through the mixing chamber to the aeration sedimentation tank and subsequent treatment processes of the wastewater treatment plant. A switching gate is provided between the mixing chamber and the overflow chamber.

[0010] The overflow chamber is rectangular, with one side connected to the mixing chamber and the other side having multiple pump outlet chambers along its length. A second outlet and a second outlet control gate for controlling the opening and closing of the second outlet are provided on the side wall connected to the mixing chamber. The second outlet is connected to the main water distribution well of the sewage treatment plant, and water is redistributed to different plant areas through the main water distribution well.

[0011] Each of the water pump outlet chambers receives water from the regulating tank booster pump through a second inlet on its side wall facing away from the overflow chamber, and each is equipped with a water pump outlet control gate, and an overflow weir is provided between each of them and the overflow chamber.

[0012] Preferably, the portion of the second outlet that passes through the mixing chamber is provided with an independent channel partition wall, enabling separate water output from the first inlet and the second outlet.

[0013] Preferably, both the first inlet and the first outlet are equipped with a first outlet control gate.

[0014] Preferably, the mixing chamber, the overflow chamber, and each of the water pump outlet chambers are provided with local drainage pits.

[0015] Preferably, equipment hoisting holes are provided at the top near all gate positions.

[0016] Preferably, railings are provided at the top near the four edges.

[0017] The beneficial effects of this utility model are:

[0018] This utility model can achieve flexible water distribution and different operating modes by adjusting the control valves according to the operating requirements of different time periods or processes, or when the sewage volume in a certain area is at full capacity or the equipment is under maintenance.

[0019] This utility model effectively realizes the water distribution function required for different time periods or different processes by dividing the internal structure of the water mixing well into compartments and setting gates in a reasonable manner. It enables a single water mixing well to achieve water distribution processes in three operating modes, and realizes differentiated water discharge for water from different sources and at different water levels, with intensive design of water inlet and outlet structures.

[0020] This utility model can not only effectively alleviate the tight land use situation inside the plant, reduce the design and construction difficulty, and improve the land utilization rate within the plant, but also significantly reduce the land demand for structures and pipelines.

[0021] This utility model is applicable to large-scale sewage treatment areas with multiple main water intakes. The multi-directional water intake and multi-channel water discharge design of the effluent mixing well facilitates water distribution and scheduling among the plant groups.

[0022] The following will further explain the concept, specific structure and technical effects of this utility model in conjunction with the accompanying drawings, so as to fully understand the purpose, features and effects of this utility model. Attached Figure Description

[0023] Figure 1 A schematic diagram of a planar structure according to an embodiment of the present invention is shown.

[0024] Figure 2 A schematic diagram of the longitudinal section structure of an embodiment of the present invention is shown.

[0025] Figure 3 A cross-sectional structural schematic diagram of an embodiment of the present invention is shown.

[0026] Figure 4 This diagram shows a planar structure of an embodiment of the present invention in a first working condition.

[0027] Figure 5 This diagram shows a planar structure of an embodiment of the present invention in a second working condition.

[0028] Figure 6 This diagram shows a planar structure of an embodiment of the present invention in a third working condition.

[0029] Among them, 1. First water inlet; 2. Second water inlet; 3. Pump outlet chamber; 4. Overflow chamber; 5. Mixing chamber; 6. Overflow weir; 7. Local drainage pit; 8. First water outlet; 9. Second water outlet; 10. First water outlet control gate; 11. Second water outlet control gate; 12. Switching gate; 13. Pump outlet control gate; 14. Equipment hoisting hole; 15. Railing. Detailed Implementation

[0030] Example

[0031] like Figures 1 to 3 As shown, the two-inlet, two-outlet water mixing well with flexible water distribution includes an overflow chamber 4 and a mixing chamber 5.

[0032] The mixing chamber 5 is rectangular strip-shaped. One end is provided with a first inlet 1, through which the pre-treated effluent from the upstream is received. The other end is provided with a first outlet 8, through which the water flowing through the mixing chamber 5 is discharged to the aeration sedimentation tank and subsequent treatment processes of the sewage treatment plant. A conversion gate 12 is provided between the mixing chamber 5 and the overflow chamber 4.

[0033] The overflow chamber 4 is rectangular, with one side connected to the mixing chamber 5 and the other side having multiple water pump outlet chambers 3 along its length. A second outlet 9 and a second outlet control gate 11 for controlling the opening and closing of the second outlet 9 are provided on the side wall connected to the mixing chamber 5. The second outlet 9 is connected to the main water distribution well of the sewage treatment plant, and water is redistributed to different plant areas through the main water distribution well.

[0034] Each water pump outlet chamber 3 receives water from the regulating tank booster pump through the second inlet 2 on its side wall facing away from the overflow chamber 4, and each is equipped with a water pump outlet control gate 13, and an overflow weir 6 is provided between each pump outlet chamber 3 and the overflow chamber 4.

[0035] This invention rationally divides the internal structural space of the effluent mixing well into multiple independent yet interconnected compartments. Gates and other flow control devices are installed on the partition walls between the compartments as needed for operation.

[0036] Meanwhile, the partition walls and flow channels of the effluent mixing well are designed according to the hydraulic elevation of each process flow to avoid short-circuiting, making the effluent more stable and uniform, and providing good hydraulic conditions for subsequent treatment processes.

[0037] To prevent the potential danger of excessive sewage backflow caused by the sudden stop of the water pump, this utility model sets up multiple water pump outlet chambers 3 in the overflow chamber 4 to form a separation measure, so that each water pump outlet pipe connected to the second water inlet 2 corresponds to an independent water pump outlet chamber 3, and a water pump outlet control gate 13 is set on each water pump outlet pipe.

[0038] Wastewater in the outlet chamber 3 of each water pump enters the overflow chamber 4 after passing through the corresponding overflow weir 6;

[0039] Since the water pump outlet chamber 3 receives the water from the regulating tank booster pump, the flow rate fluctuates greatly due to the influence of upstream and downstream water levels. In order to avoid the sewage from impacting subsequent treatment, the water pump outlet chamber 3 uses an overflow weir 6 to discharge water, so as to regulate the water volume and make the water flow rate more stable.

[0040] In some embodiments, the portion of the second outlet 9 that passes through the mixing chamber 5 is provided with an independent channel partition wall, so as to separate the incoming water from the first inlet 1 and the second outlet 9.

[0041] In some embodiments, both the first inlet 1 and the first outlet 8 are provided with a first outlet control gate 10.

[0042] In practical applications, the first outlet control gate 10 can be set to close the first inlet 1 and block the incoming water when the switching gate 12 is opened.

[0043] In some embodiments, the mixing chamber 5, the overflow chamber 4, and each water pump outlet chamber 3 are provided with a local drainage pit 7.

[0044] In practical applications, the setting of local drainage pit 7 can facilitate the emptying of water in the corresponding mixing chamber 5, the corresponding overflow chamber 4, or the corresponding water pump outlet chamber 3 when the equipment is under maintenance.

[0045] In some embodiments, equipment hoisting holes 14 are provided at the top near all gate mounting locations.

[0046] In some embodiments, railings 15 are provided at the top near the four edges.

[0047] like Figures 4 to 6 As shown, this utility model also provides a method for using a two-inlet, two-outlet water mixing well with flexible water distribution, including three working conditions;

[0048] like Figure 4 As shown, in the first operating condition, the pretreated effluent enters the mixing chamber 5 through the first inlet 1, flows through the mixing chamber 5 and the first outlet 8, and then enters the aerated grit chamber and subsequent treatment process of the downstream sewage treatment plant. The first outlet control gate 10 is in the open state, the switching gate 12 and the second outlet control gate 11 are both closed, the regulating tank has no effluent, the overflow chamber 4 is empty, and no effluent enters the main distribution well of the sewage treatment plant through the second outlet 9.

[0049] like Figure 5 As shown, in the second operating condition, the water effluent from the regulating tank enters the water pump outlet chamber 3 and overflow chamber 4 sequentially through the second inlet 2, and then enters the main distribution well of the sewage treatment plant through the second outlet 9. The switching gate 12 is closed, the second outlet channel control gate 11 is opened, and the first inlet 1 and the first outlet 8 operate normally.

[0050] like Figure 6 As shown, in the third operating condition, the effluent from the regulating tank enters the pump outlet chamber 3 and overflow chamber 4 sequentially through the second inlet 2, and then enters the downstream sewage treatment plant's aeration grit chamber and subsequent treatment processes through the first outlet 8 via the switching gate 12. The second outlet control gate 11 is closed, and the opening degree of the first outlet control gate 10 is adjusted according to the load of the downstream sewage treatment plant.

[0051] The preferred embodiments of this utility model have been described in detail above. It should be understood that those skilled in the art can make numerous modifications and variations based on the concept of this utility model without creative effort. Therefore, all technical solutions that can be obtained by those skilled in the art based on the concept of this utility model through logical analysis, reasoning, or limited experimentation on the basis of existing technology should be within the scope of protection defined by the claims.

Claims

1. A two-inlet, two-outlet water mixing well with flexible water distribution; characterized in that, Including an overflow container (4) and a mixing container (5); The mixing chamber (5) is rectangular and has a first inlet (1) at one end, through which it receives the pretreated water from the upstream. The other end has a first outlet (8), through which the water flowing through the mixing chamber (5) is discharged to the aeration sedimentation tank and subsequent treatment processes of the sewage treatment plant. A switching gate (12) is provided between the mixing chamber (5) and the overflow chamber (4). The overflow chamber (4) is rectangular, with one side connected to the mixing chamber (5) and the other side having multiple water pump outlet chambers (3) along its length. A second outlet (9) and a second outlet control gate (11) for controlling the opening and closing of the second outlet (9) are provided on the side wall connected to the mixing chamber (5). The second outlet (9) is connected to the main water distribution well of the sewage treatment plant and the water is redistributed to different plant areas through the main water distribution well. Each of the pump outlet chambers (3) receives water from the regulating tank booster pump through a second inlet (2) on the side wall facing away from the overflow chamber (4), and each is equipped with a pump outlet control gate (13), and an overflow weir (6) is provided between the pump outlet chamber (4) and the overflow chamber (4).

2. The two-inlet, two-outlet flexible water distribution mixing well according to claim 1, characterized in that, The portion of the second outlet (9) that passes through the mixing chamber (5) is provided with an independent channel partition wall, which enables the separate discharge of water from the first inlet (1) and the second outlet (9).

3. The two-inlet, two-outlet flexible water distribution mixing well according to claim 1, characterized in that, Both the first inlet (1) and the first outlet (8) are equipped with a first outlet control gate (10).

4. The two-inlet, two-outlet flexible water distribution mixing well according to claim 1, characterized in that, Each of the mixing chamber (5), the overflow chamber (4), and each of the pump outlet chambers (3) is provided with a local drainage pit (7).

5. The two-inlet, two-outlet flexible water distribution mixing well according to claim 1, characterized in that, Equipment hoisting holes (14) are provided at the top near all gates.

6. The two-inlet, two-outlet flexible water distribution mixing well according to claim 1, characterized in that, There are railings (15) at the top near the four edges.

Images