Fabricated partition plate for sewage treatment pool

Abstract

The utility model belongs to the field of sewage treatment, and discloses an assembled partition plate for a sewage treatment pool, which comprises a partition plate main body formed by sequentially splicing a plurality of sub-plate bodies, one or more flap valves are arranged on the partition plate main body; the partition plate body is provided with at least one communicating pipe communicating the two sides of the partition plate body, and the height difference between an upper end opening and a lower end opening of the communicating pipe is smaller than the pressure-bearing liquid level difference of the partition plate body. The partition plate adopts an assembled structure, is formed by splicing a plurality of sub-plate bodies, and is provided with a flap valve for controlling sewage to flow in one direction and a communicating pipe for preventing the assembled structure from being deformed and collapsed due to front and back liquid level difference, so that safe operation of the assembled partition plate in a sewage pool can be realized; therefore, the assembly efficiency is high, the cost is low and the construction period is short. Meanwhile, the utility model further discloses a sewage treatment pool.

Description

Technical Field

[0001] This utility model relates to the field of sewage treatment, and in particular to a prefabricated partition for sewage treatment tanks. Background Technology

[0002] Currently, the AOA (Anaerobic-Aerobic-Anoxic) process is a popular technology for wastewater treatment plant process upgrades and renovations. Besides updating process equipment, modifications to the existing civil engineering of wastewater treatment tanks are often required. For example, to adjust the length and volume ratio of the anaerobic, aerobic, and anoxic zones in a biological treatment tank, fixed partition walls need to be added to the existing tank. In the past, adding fixed partition walls to existing concrete tanks often involved reinforced concrete walls, requiring extensive work such as rebar installation, reinforcement binding, and concrete pouring. This was costly, time-consuming, and resulted in prolonged downtime of the wastewater treatment facilities, which was unacceptable to owners. Therefore, there is a need to find a low-cost, short-term, and simple-to-operate technical solution to improve work efficiency and project benefits. Summary of the Invention

[0003] The main purpose of this utility model is to provide a prefabricated baffle. The baffle adopts a prefabricated structure and is composed of multiple sub-plates. It is equipped with a flap valve to control the unidirectional flow of sewage and a connecting pipe to prevent the prefabricated structure from deforming or collapsing due to the difference in liquid level. This prefabricated baffle can be safely operated in sewage tanks. Because the baffle adopts a prefabricated structure, it has high assembly efficiency, low cost and short construction period.

[0004] Meanwhile, this utility model also discloses a sewage treatment pool.

[0005] The technical solution provided by this utility model is: an assembled partition for a sewage treatment tank, comprising a partition body formed by sequentially splicing multiple sub-plates; one or more flap gates are provided on the partition body; at least one connecting pipe is provided on the partition body to connect the two sides of the partition body, and the height difference between the upper opening and the lower opening of the connecting pipe is less than the pressure liquid level difference of the partition body.

[0006] The height difference between the upper and lower openings of the connecting pipe should be set according to the pressure level difference that the baffle body can withstand. The pressure level difference that the baffle body can withstand is related to many factors such as the material, area, and fixing stability of the baffle body. Therefore, during the design process, the designer should calculate the pressure level difference of the baffle body in advance and then design the specifications of the connecting pipe.

[0007] In the above-mentioned assembled partition, the connecting pipe is located above and / or below the flap gate;

[0008] The function of a connecting pipe varies depending on its location; the details are as follows:

[0009] If prefabricated partitions are installed inside the sewage tank, the sewage tank is divided into zone A and zone B; sewage flows unidirectionally from zone A to zone B through a flap gate.

[0010] If the connecting pipe is placed below the flap gate, it is mainly to prevent the liquid level in zone B from dropping too quickly, which could damage the assembled partition due to the liquid level difference between zone A and zone B.

[0011] If the connecting pipe is placed above the flap gate, it is mainly to prevent the liquid level difference from damaging the assembled partition plate if the operator fails to lower the water level in area B and pumps out the liquid in area A too quickly during maintenance.

[0012] Therefore, from a design perspective, a connecting pipe should be installed below the flap gate; from a comprehensive safety perspective, connecting pipes should be installed above and below the flap gate.

[0013] The height difference between the upper and lower openings of the connecting pipe is less than 1.5m;

[0014] Preferably, the height difference between the upper and lower openings of the connecting pipe is less than 1.2m;

[0015] Preferably, the height difference between the upper and lower openings of the connecting pipe is 0.5 to 1.2 m.

[0016] In the aforementioned prefabricated partition, a connecting pipe is installed within a sub-plate.

[0017] It should be noted that the connecting pipe is not necessarily limited to being located inside the sub-plate; it can also be located on the outside of the sub-plate. For example, a hole can be drilled in the sub-plate, and the top or bottom opening of an additional pipe can be connected to the hole to achieve the function of the connecting pipe described above.

[0018] The sub-plate is made of cast iron, stainless steel, or aluminum alloy.

[0019] In the above-mentioned prefabricated partition, there are multiple connecting pipes; the multiple connecting pipes are arranged side by side, or the multiple connecting pipes are arranged in multiple rows, with two or more connecting pipes arranged in each row.

[0020] The number of connecting pipes is related to the volume of the pool and the cross-sectional area of ​​the connecting pipes; a larger pool volume and a larger inflow rate require more connecting pipes, and a smaller cross-sectional area requires more connecting pipes. The primary purpose of the connecting pipes in this invention is to prevent excessive liquid level differences between the front and rear areas of the prefabricated partition, or to prolong the time it takes for excessive liquid level differences to occur (from an extreme perspective, if the liquid level drops extremely quickly, even a large number of connecting pipes cannot prevent the liquid level difference from occurring; however, this application is designed only to consider water level fluctuations during normal wastewater treatment).

[0021] In the above-mentioned assembled partition, there are 2 to 10 connecting pipes.

[0022] The prefabricated partition mentioned above also includes multiple columns; multiple sub-plates are sealed and fixed between two adjacent columns from top to bottom.

[0023] The prefabricated partition also includes a crossbeam, with the two outermost columns fixedly connected to the side of the external water tank; the tops of the remaining columns are fixedly connected to the crossbeam and the bottoms are fixedly connected to the bottom of the water tank.

[0024] In the above-mentioned prefabricated partition, the sub-plate and the column are connected by a snap-fit ​​method, and a first sealing element is provided at the snap-fit ​​position.

[0025] In the aforementioned prefabricated partition, a second sealing element is provided between two adjacent sub-plates.

[0026] Meanwhile, the present invention also discloses a sewage treatment pool, including a pool and an assembled partition as described above, fixed inside the pool; the assembled partition divides the pool into two chambers.

[0027] The beneficial effects of this utility model are as follows:

[0028] This solution adopts a prefabricated structure, which is composed of multiple sub-plates. It is equipped with a flap gate to control the unidirectional flow of sewage and a connecting pipe to prevent the prefabricated structure from deforming or collapsing due to the difference in liquid level. This allows the prefabricated baffle to operate safely in the sewage tank. Because the baffle adopts a prefabricated structure, it has high assembly efficiency, low cost and short construction period. Attached Figure Description

[0029] Figure 1 This is a front view of one implementation of Example 1;

[0030] Figure 2 This is the main view of another implementation of Example 1;

[0031] Figure 3 This is a perspective view of Example 1;

[0032] Figure 4 It is Example 1 Figure 3 A magnified view of a portion of C;

[0033] Figure 5 This is a perspective view of the column in Example 1;

[0034] Figure 6 This is a perspective view of the two sub-plates fitting together in Example 1;

[0035] Figure 7 This is an enlarged view of the sub-plate of Example 1;

[0036] Figure 8 This is a cross-sectional view of the two sub-plates fitting together in Example 1;

[0037] Figure 9 This is a schematic diagram of the structure of Example 2. Detailed Implementation

[0038] The technical solution of this utility model will be further described in detail below with reference to specific embodiments, but this does not constitute any limitation on this utility model.

[0039] refer to Figures 1 to 8 An assembled partition for a sewage treatment tank includes a partition body formed by sequentially splicing multiple sub-plates 1; one or more flap gates 2 are provided on the partition body; at least one connecting pipe 3 is provided on the partition body to connect the two sides of the partition body, and the height difference between the upper opening and the lower opening of the connecting pipe 3 is less than the pressure liquid level difference of the partition body.

[0040] The height difference between the upper and lower openings of the connecting pipe 3 should be set according to the pressure level difference that the baffle body can withstand. The pressure level difference that the baffle body can withstand is related to many factors such as the material, area, and fixing stability of the baffle body. Therefore, during the design process, the designer should calculate the pressure level difference of the baffle body in advance and then design the specifications of the connecting pipe 3.

[0041] In practical applications, depending on the width of the pool, the structure of sub-plate 1 can be set as 1 column and N rows, i.e., 1*N structure, or it can be designed as M columns and N rows, i.e., M*N structure; M and N are both greater than 2 and are natural numbers;

[0042] In conventional designs, the structure is M*N; for example, 3*10, 4*8, etc.

[0043] Flap valve 2 is a check valve that can control the unidirectional flow of liquid and prevent backflow of external water. To prevent corrosion, steel flap valve 2 is selected. In the sewage treatment process, the flow of liquid from one chamber to another is generally selected by overflow, that is, flap valve 2 is generally selected to be set at the top between adjacent chambers, but it can also be set in the middle or lower part to form a low liquid level overflow.

[0044] Since this embodiment uses a prefabricated partition, the biggest problem is that an excessive liquid level difference can cause the partition to deform or collapse. By setting up a connecting pipe 3 to balance the liquid level difference between adjacent chambers, this risk can be mitigated or eliminated.

[0045] In the above-mentioned assembled partition, the connecting pipe 3 is located below the flap gate 2;

[0046] If the prefabricated partition is installed in the sewage tank, the sewage tank is divided into zone A and zone B; sewage flows from zone A to zone B in one direction through flap gate 2; the connecting pipe 3 is installed below flap gate 2, mainly to prevent the liquid level difference between zone A and zone B from being damaged by the liquid level difference caused by the rapid drop in the liquid level of zone B.

[0047] The height difference between the upper and lower openings of the connecting pipe 3 is less than 1.5m;

[0048] There are many ways to implement the configuration of the connecting pipe 3:

[0049] Implementation Form 1: Reference Figure 1 One connecting pipe 3 is set in one sub-plate 1; multiple connecting pipes 3 are set in multiple sub-plates 1;

[0050] Implementation Form 2: Reference Figure 2 The connecting pipe 3 is located on the outside of the sub-plate 1. For example, a hole is drilled in the sub-plate 1, and the top or bottom opening of an additional pipe is connected to the hole to achieve the function of the connecting pipe 3.

[0051] In this embodiment, the sub-plate 1 is made of cast iron, stainless steel, or aluminum alloy.

[0052] In the design, the connecting pipe 3 can be set as multiple pipes; multiple connecting pipes 3 can be arranged side by side, or multiple connecting pipes 3 can be arranged in multiple rows, with 2 or more connecting pipes 3 arranged in each row.

[0053] In this embodiment, a 2*3 layout is adopted, that is, it is divided into two rows, with 6 connecting pipes in each row.

[0054] The number of connecting pipes 3 is related to the volume of the pool and the cross-sectional area of ​​the connecting pipes 3. If the pool volume is large and the inflow is large, then the number of connecting pipes 3 should be large. If the cross-sectional area of ​​the connecting pipes 3 is small, then the number of connecting pipes 3 should also be large. The primary purpose of setting the connecting pipes 3 in this utility model is to prevent excessive liquid level difference from occurring in the front and rear areas of the assembled partition, or to prolong the time for excessive liquid level difference to occur (from an extreme point of view, if the liquid level drops very quickly, then no matter how many connecting pipes 3 there are, they cannot prevent the liquid level difference from occurring; however, for the purposes of this application, the design only considers the water level fluctuation situation in the normal sewage treatment process).

[0055] Preferably, it also includes multiple columns 4 and crossbeams 5; the two outermost columns 4 of multiple sub-plates 1 are sealed and fixed from top to bottom between two adjacent columns 4 and the side of the external water tank; the top of the remaining columns 4 is fixedly connected to the crossbeams 5 and the bottom is fixedly connected to the bottom of the water tank; the sub-plates 1 and columns 4 are connected by snap-fit, and a first sealing element 6 is provided at the snap-fit ​​position, and a second sealing element 7 is provided between two adjacent sub-plates 1.

[0056] Example 2

[0057] refer to Figure 9 A wastewater treatment tank includes a tank and an assembled partition as described in Example 1, fixed inside the tank; the assembled partition divides the tank into two chambers. The tank is divided into zone A and zone B; wastewater flows unidirectionally from zone A to zone B through a flap gate 2; a connecting pipe 3 is located below the flap gate 2, mainly to prevent the liquid level in zone B from dropping too quickly, which could damage the assembled partition due to the liquid level difference between zone A and zone B; a crossbeam 5 is fixed to the top of the tank; the bottom of the columns 4 is fixed to the bottom of the tank, and the two outermost columns 4 are fixedly connected to the side of the tank.

[0058] With the above setup, the pool is divided into two areas. During assembly, the sub-plates 1 are inserted one by one between the two columns 4, and the seal between the sub-plates 1 is then ensured.

[0059] The above description is only a preferred embodiment of the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A prefabricated partition for a sewage treatment tank, characterized in that, It includes a partition body formed by sequentially splicing multiple sub-plates; the partition body is provided with one or more flap gates; the partition body is provided with at least one connecting pipe connecting both sides of the partition body, and the height difference between the upper and lower openings of the connecting pipe is less than the pressure liquid level difference of the partition body.

2. The prefabricated partition according to claim 1, characterized in that, The connecting pipe is located above and / or below the flap gate; The height difference between the upper and lower openings of the connecting pipe is less than 1.5m.

3. The prefabricated partition according to claim 1, characterized in that, A connecting pipe is installed inside a sub-plate; The sub-plate is made of cast iron, stainless steel, or aluminum alloy.

4. The prefabricated partition according to claim 1, characterized in that, The connecting pipe may be multiple; the multiple connecting pipes may be arranged side by side, or the multiple connecting pipes may be arranged in multiple rows, with two or more connecting pipes arranged in each row.

5. The prefabricated partition according to claim 4, characterized in that, The number of connecting pipes is 2 to 10.

6. The prefabricated partition according to claim 1, characterized in that, It also includes multiple columns; multiple sub-plates are sealed and fixed between two adjacent columns from top to bottom.

7. The prefabricated partition according to claim 6, characterized in that, It also includes a crossbeam, the two outermost columns and the side of the external water tank are fixedly connected; the tops of the remaining columns are fixedly connected to the crossbeam and the bottoms are fixedly connected to the bottom of the water tank.

8. The prefabricated partition according to claim 6, characterized in that, The sub-plate and the column are connected by a snap-fit ​​mechanism, and a first sealing element is provided at the snap-fit ​​location.

9. The prefabricated partition according to claim 1, characterized in that, A second sealing element is provided between two adjacent sub-plates.

10. A sewage treatment tank, characterized in that, It includes a water tank and a prefabricated partition as described in any one of claims 1 to 9, which is fixed inside the water tank; the prefabricated partition divides the water tank into two chambers.

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