Biological reaction tank with integrated pipe gallery structure layout

Abstract

The present invention discloses a biological reaction tank with an integrated pipe gallery structure, which includes two groups of symmetrically arranged biological tanks, and an integrated pipe gallery structure is provided between the two groups of biological tanks; an air pipe, a deodorization air pipe and a sludge return pipe are arranged in the integrated pipe gallery structure; the sludge return pipe passes through the side wall of the integrated pipe gallery structure and is connected to the anaerobic tank and the aerobic tank of the corresponding biological tank; the air pipe and the deodorization air pipe are connected to the aerobic tank through a pipe trench that horizontally intersects the integrated pipe gallery structure. The application of the present invention can more reasonably and effectively lay various pipelines in the biological tank, simplify the complex operation and maintenance work of the existing biological tank, and monitor various pipelines in real time.

Description

Technical Field

[0001] The present invention relates to the technical field of biological reaction tank construction, and particularly to a biological reaction tank with an integrated pipe gallery structure layout. Background Art

[0002] In existing sewage treatment plants, biological treatment processes are mainly used to treat urban sewage. Biological treatment processes have become the main choice for urban sewage treatment due to their good treatment effect, low pollutant production, low treatment cost, and simple facilities.

[0003] However, the implementation of biological treatment processes requires a biological reaction tank as a basis. Currently, many urban sewage treatment plants use an A 2 O biological reaction tank to biologically treat urban sewage. The A 2 O biological reaction tank consists of an anaerobic tank, an anoxic tank, and an aerobic tank, and can effectively remove various pollutants such as COD, BOD, nitrogen, and phosphorus.

[0004] However, although the A 2 O biological reaction tank has a good treatment effect on sewage, the pipelines involved inside the reaction tank are relatively complex, including air pipes, deodorization air pipes, mixed liquor return pipes (sludge return inside the biological reaction tank), and sludge return pipes (mainly receiving the returned sludge from the secondary sedimentation tank). The design and laying of these pipelines play a very crucial role in the pool type layout in the early stage of the biological tank and the later operation, maintenance, and repair.

[0005] The existing pipeline design in biological tanks mainly adopts the method of open laying of pipelines, and various pipelines are laid on the top of the biological tank, outdoors, etc.

[0006] The above pipeline laying method easily leads to higher operation and maintenance costs, and it is necessary to monitor various pipelines in real time. At the same time, the exposed pipelines on the top of the pool and outdoors affect the cleanliness and beauty of the environment.

[0007] Therefore, how to reasonably arrange the air pipes, deodorization air pipes, internal return pipes, and external return pipes in the biological tank has become a technical problem that needs to be urgently solved by those skilled in the art. Summary of the Invention

[0008] In view of the above-mentioned defects of the prior art, the present invention provides a biological reaction tank with an integrated pipe gallery structure layout, and the purpose achieved is to be able to lay various pipelines in the biological tank more reasonably and effectively, simplify the complex operation and maintenance work of the existing biological tank, and monitor various pipelines in real time.

[0009] To achieve the above purpose, the present invention discloses a biological reaction tank with an integrated pipe gallery structure layout, including two groups of symmetrically arranged biological tanks, and an integrated pipe gallery structure is provided between the two groups of biological tanks;

[0010] An air pipe, a deodorization air duct, and a sludge return pipe are arranged in the utility tunnel structure;

[0011] The sludge return pipe passes through the side wall of the utility tunnel structure and is connected to the anaerobic tank and aerobic tank of the corresponding biological tank;

[0012] The air pipe and the deodorization air duct are connected to the aerobic tank through a trench that horizontally intersects the utility tunnel structure.

[0013] Preferably, each biological tank includes an anaerobic tank, an anoxic tank, and an aerobic tank connected in sequence.

[0014] More preferably, the sludge return pipe includes an internal return pipeline and an external return pipeline;

[0015] The external return pipeline is a return culvert for sludge return, which is arranged at a position near the bottom of the side wall of the utility tunnel structure adjacent to each biological tank, and passes through the corresponding side wall at a position near the bottom of the utility tunnel structure and is connected to the anoxic tank;

[0016] The internal return pipeline is a mixed liquor return pipe, which is arranged at a position above the corresponding external return pipeline on the side wall of the utility tunnel structure adjacent to each biological tank, and passes through the corresponding side wall at a position near the bottom of the utility tunnel structure and is connected to the anaerobic tank.

[0017] More preferably, the diameter of each mixed liquor return pipe is 1000 mm; the cross-sectional size of each return culvert is 1000 mm × 2000 mm.

[0018] More preferably, the mixed liquor return pipe is connected to a mixed liquor return pump; the return culvert is connected to a sludge return pump.

[0019] Preferably, the air pipe is buried from the blower room into the utility tunnel structure and laid on the top of the utility tunnel structure;

[0020] The side wall of the utility tunnel structure adjacent to the corresponding aerobic tank is provided with a reserved hole for passing through the corresponding air pipe.

[0021] More preferably, the air pipe is fixed to the top of the utility tunnel structure by a hanging bracket.

[0022] More preferably, the diameter of the air pipe is 700 mm.

[0023] Preferably, the utility tunnel structure is a double-layer structure separated by a partition board up and down;

[0024] The internal return pipeline and the external return pipeline of the sludge return pipe, that is, the mixed liquor return pipe and the return culvert, are respectively arranged above and below the partition board;

[0025] The air pipe is located below the top of the top layer in the double-layer structure.

[0026] Advantages of the present invention:

[0027] The application of the present invention can lay various pipelines in the biological pond more reasonably and effectively, simplify the complex operation and maintenance work of the existing biological pond, and monitor various pipelines in real time.

[0028] The concept, specific structure and technical effects of the present invention will be further described below in conjunction with the drawings to fully understand the purpose, features and effects of the present invention. Brief Description of the Drawings

[0029] Figure 1 A schematic plan view showing the height of the mixed liquid return pipe in the utility tunnel structure according to an embodiment of the present invention.

[0030] Figure 2 A schematic plan view showing the height of the return culvert in the utility tunnel structure according to an embodiment of the present invention.

[0031] Figure 3 A schematic plan view showing the height of the air pipe in the utility tunnel structure according to an embodiment of the present invention.

[0032] Figure 4 A schematic cross-sectional view of the utility tunnel structure according to an embodiment of the present invention. Detailed Description of the Invention

[0033] Embodiment

[0034] As Figures 1 to 4 shown, a biological reaction pond with a utility tunnel structure arrangement includes two groups of symmetrically arranged biological ponds, and a utility tunnel structure is provided between the two groups of biological ponds;

[0035] An air pipe 8, a deodorization air pipe and a sludge return pipe are arranged in the utility tunnel structure; the sludge return pipe passes through the side wall of the utility tunnel structure and is connected to the anaerobic pond 1 and the aerobic pond 3 of the corresponding biological pond;

[0036] The air pipe 8 and the deodorization air pipe are connected to the aerobic pond 3 through a trench intersecting horizontally with the utility tunnel structure. The biological pond includes an anaerobic pond 1, an anoxic pond 2 and an aerobic pond 3.

[0037] The sludge return pipe includes an internal return pipeline and an external return pipeline;

[0038] The external reflux pipeline is the reflux culvert 5, which is used to return the secondary sedimentation tank sludge to the biological tank. It is set at the position near the bottom of the side wall adjacent to the biological tank in the utility tunnel. The cross-sectional dimension of the external reflux culvert 5 is 1000mm×2000mm. Under the action of the sludge reflux pump, the external reflux sludge passes through the side wall at the position near the bottom of the utility tunnel structure and is connected to the anoxic tank 2.

[0039] The internal reflux pipeline is the biological tank mixed sludge reflux pipe, which is set on the side wall adjacent to the biological tank in the utility tunnel structure, above the external reflux pipeline. The diameter of the internal reflux pipe is DN1000. Under the action of the sludge reflux pump, the internal reflux sludge passes through the corresponding side wall at the position near the bottom of the utility tunnel structure and is connected to the anaerobic tank 1.

[0040] The air pipe 8 is buried from the blower room into the utility tunnel in the biological tank and is laid on the top of the utility tunnel structure; the air pipe 8 supplies air to the aerobic tank 3 through the reserved hole 9 set on the side wall to penetrate the side wall of the utility tunnel and the aerobic tank 3. The air pipe 8 is fixed on the top of the utility tunnel structure through a hanger, and the pipe diameter is DN700.

[0041] The utility tunnel structure is a double-layer structure separated by a partition board up and down;

[0042] The internal reflux pipeline and the external reflux pipeline of the sludge reflux pipe, that is, the mixed liquor reflux pipe 4 and the reflux culvert 5 are respectively set above and below the partition board;

[0043] The air pipe 8 is located below the top of the top layer in the double-layer structure.

[0044] In some embodiments, the mixed liquor reflux pipe 4 is connected to the mixed liquor reflux pump 6; the reflux culvert 5 is connected to the sludge reflux pump 7.

[0045] The preferred specific embodiments of the present invention have been described in detail above. It should be understood that those of ordinary skill in the art can make many modifications and variations based on the concept of the present invention without creative work. Therefore, all technical solutions that can be obtained by those skilled in the art in the technical field of the present invention based on the concept of the present invention through logical analysis, reasoning or limited experiments on the basis of the prior art should be within the protection scope determined by the claims.

Claims

1. Biological reaction tank with integrated pipe gallery structure layout, including two groups of symmetrically arranged biological tanks; characterized in that, There is an integrated pipe gallery structure between the two groups of the biological ponds; each biological pond includes an anaerobic pond (1), an anoxic pond (2) and an aerobic pond (3) connected in sequence; The integrated pipe gallery structure is provided with an air pipe (8), a deodorization air pipe and a sludge return pipe; The sludge return pipe passes through the side wall of the integrated pipe gallery structure and is connected to the anaerobic pond (1) and the aerobic pond (3) of the corresponding biological pond; The air pipe (8) and the deodorization air pipe are connected to the aerobic pond (3) through a pipe trench horizontally intersecting with the integrated pipe gallery structure; the sludge return pipe includes an internal return pipeline and an external return pipeline; The external return pipeline is a return box culvert (5) for sludge return, which is arranged at a position close to the bottom of the side wall adjacent to each biological pond of the integrated pipe gallery structure, and passes through the corresponding side wall at a position close to the bottom of the integrated pipe gallery structure and is connected to the anoxic pond (2); The internal return pipeline is a mixed liquor return pipe (4), which is arranged at a position above the corresponding external return pipeline on the side wall adjacent to each biological pond of the integrated pipe gallery structure, and passes through the corresponding side wall at a position close to the bottom of the integrated pipe gallery structure and is connected to the anaerobic pond (1).

2. The bioreactor with the integrated utility tunnel structure layout according to claim 1, characterized in that, The diameter of each mixed liquor return pipe (4) is 1000 millimeters; the cross-sectional dimension of each return box culvert (5) is 1000 millimeters X 2000 millimeters.

3. The biological reaction tank with the integrated pipe gallery structure layout according to claim 1, characterized in that, The mixed liquor return pipe (4) is connected to a mixed liquor return pump (6); the return box culvert (5) is connected to a sludge return pump (7).

4. The biological reaction tank with the integrated pipe gallery structure layout according to claim 1, characterized in that, The air pipe (8) is buried from the blower room into the integrated pipe gallery structure and is laid on the top of the integrated pipe gallery structure; The side wall of the integrated pipe gallery structure adjacent to the corresponding aerobic pond (3) is provided with a reserved hole (9) for passing through the corresponding air pipe (8).

5. The biological reaction tank with the integrated pipe gallery structure layout according to claim 4, characterized in that, The air pipe (8) is fixed to the top of the integrated pipe gallery structure through a hanger.

6. The biological reaction tank with the integrated pipe gallery structure layout according to claim 4, characterized in that, The pipe diameter of the air pipe (8) is 700 millimeters.

7. The biological reaction tank arranged according to the utility model of the utility model of the comprehensive pipe gallery structure, characterized in that, The integrated pipe gallery structure is a double-layer structure separated up and down by a partition board; The internal return pipeline and the external return pipeline of the sludge return pipe, that is, the mixed liquor return pipe (4) and the return box culvert (5) are respectively arranged under and above the partition board; The air pipe (8) is located under the top of the top layer in the double-layer structure.

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