Village and town sewage treatment system

Abstract

The invention relates to the technical field of sewage treatment, in particular to a village and town sewage treatment system. According to the village and town sewage treatment system disclosed by the invention, through cooperation of the diversion well, the rainwater system, the water building, the sewage branch pipe, the sewage main pipe, the sewage lifter, the first valve, the negative pressure pipeline, the vacuum pump station, the sewage discharge pipeline, the municipal sewage pipe, the sewage treatment station and the like, water of the rainwater system is converged into the sewage main pipe through the diversion well in sunny days or first rain; sewage discharged by the water building is gathered to the sewage main pipe through the sewage branch pipe, sequentially passes through the sewage lifter, the negative pressure pipeline, the sewage discharge pipeline and the municipal sewage pipe, finally reaches the sewage treatment station to be treated and then is discharged, and when more rainwater exists, the rainwater system does not gather into the sewage main pipe and is directly discharged; rainwater and sewage can be effectively separated, the overflow condition of a sewage plant during rainstorm can be solved, in addition, the sewage can be lifted under negative pressure by using the vacuum pump station, and the device has the advantages of odor isolation, no permeation or leakage, high collection rate, good leakproofness and the like.

Description

Technical Field

[0001] The present invention relates to the technical field of sewage treatment, and in particular to a township sewage treatment system. Background Art

[0002] In the existing technology, township sewage treatment has the following main shortcomings: 1. Sewage collection is difficult, the collection rate is low, and the cost is high; 2. Sewage lifting equipment is easily blocked, and the operation and maintenance costs are high; 3. The sewage transmission network merges with the rainwater network, and during heavy rains, the sewage treatment plant is unable to deal with overflow in time; 4. There are many sewage treatment plants, which are scattered and cover a large area. The equipment is manually controlled, the number of staff is large, and they rely on personal experience. The operation level varies greatly, equipment failures are not discovered in time, the operation risk is high, the equipment energy consumption and drug consumption are high, and the water quality of the factory water is unstable; 5. There is a lack of a unified operation and maintenance management platform, and cluster management cannot be achieved. Information acquisition is delayed, and management decision-making is inefficient. Summary of the invention

[0003] In view of the defects in the prior art, the present invention provides a township sewage treatment system.

[0004] The technical solution adopted by the present invention is: a township sewage treatment system, including a rainwater system connected to the sewage system through a diversion well, the sewage system includes a municipal sewage pipe and multiple water-using buildings, each water-using building is connected to a sewage branch pipe, and multiple sewage branch pipes converge into a sewage main pipe, which is connected to a sewage lift and is equipped with a corresponding first valve; the sewage lift is connected to a negative pressure pipeline, which is connected to a vacuum pump station, and the vacuum pump station is connected to the municipal sewage pipe through a sewage pipe, and the municipal sewage pipe is connected to a sewage treatment station, and the sewage treatment station is provided with a discharge pipe.

[0005] In order to better realize the present invention, the rainwater system includes a rainwater gathering trough, which is connected to a rainwater pipe, and the rainwater pipe is connected to a diversion well, which is connected to the municipal rainwater pipe through a rainwater diversion pipe; the diversion well is also connected to a sewage diversion pipe, which is connected to the sewage main pipe and is equipped with a corresponding second valve.

[0006] In order to better implement the present invention, a septic tank is arranged between the first valve and the sewage lift.

[0007] In order to better realize the present invention, a hydraulically operated downward opening weir gate located between the rainwater pipe and the rainwater diversion pipe is arranged in the diversion well, and the sewage diversion pipe is located between the hydraulically operated downward opening weir gate and the rainwater pipe and is equipped with a diversion mechanism.

[0008] In order to better realize the present invention, a floating baffle is arranged between the diversion mechanism and the hydraulic downward opening weir gate to prevent backflow.

[0009] In order to better implement the present invention, the diversion mechanism includes a hydraulic cylinder, and the hydraulic cylinder is equipped with a gate that cooperates with the sewage diversion pipe.

[0010] In order to better realize the present invention, the sewage lift includes a shell and a power motor, the rotating shaft of the power motor extends into the shell and is connected to a spiral centrifugal impeller; a sewage inlet and a sewage outlet are also provided on the shell, the sewage inlet is connected to the septic tank, and the sewage outlet is connected to the negative pressure pipe.

[0011] In order to better implement the present invention, the rotating shaft is equipped with a bearing and a sealing ring fitted with the bearing.

[0012] The beneficial effects of the present invention are embodied in: the township sewage treatment system of the present invention, through the cooperation of the diversion well, rainwater system, water-using buildings, sewage branch pipes, sewage main pipes, sewage lifts, first valves, negative pressure pipes, vacuum pump stations, sewage pipes, municipal sewage pipes and sewage treatment stations, on sunny days or early rain, the water of the rainwater system is merged into the sewage main pipe through the diversion well, and the sewage discharged from the water-using buildings is gathered into the sewage main pipe through the sewage branch pipe, and then passes through the sewage lift, negative pressure pipes, sewage pipes, municipal sewage pipes in turn, and finally reaches the sewage treatment station for treatment and discharge. When there is a lot of rainwater, the rainwater system does not merge into the sewage main pipe but is directly discharged; it can effectively separate rainwater and sewage, and can solve the overflow of sewage treatment plants during heavy rains. In addition, the use of the vacuum pump station allows the sewage to be lifted under negative pressure, which has the advantages of water saving, odor isolation, no infiltration or leakage, high collection rate, good airtightness, etc. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] In order to more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following is a brief introduction to the drawings required for the specific embodiments or the description of the prior art. In all the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, the elements or parts are not necessarily drawn according to the actual scale.

[0014] Figure 1 A schematic diagram of the structure of the township sewage treatment system of the present invention;

[0015] Figure 2 A schematic diagram of the structure of a diversion well of a township sewage treatment system of the present invention;

[0016] Figure 3 A schematic diagram of the structure of a sewage lifter of a township sewage treatment system of the present invention;

[0017] In the attached figure, 1 is a municipal sewage pipe, 2 is a municipal rainwater pipe, 3 is a diversion well, 4 is a rainwater pipe, 5 is a rainwater gathering trough, 6 is a water-using building, 7 is a sewage branch pipe, 8 is a septic tank, 9 is a sewage lift, 10 is a negative pressure pipe, 11 is a vacuum pump station, 12 is a sewage pipe, 13 is a sewage treatment station, 14 is a discharge pipe, 15 is a sewage diversion pipe, 16 is a rainwater diversion pipe, 18 is a second valve, 19 is a first valve, 20 is a hydraulically operated down-opening weir gate, 21 is a hydraulic cylinder, 22 is a gate, 23 is a floating baffle, 24 is a shell, 25 is a sewage outlet, 26 is a sewage inlet, 27 is a rotating shaft, 28 is a bearing, 29 is a sealing ring, 30 is a spiral centrifugal impeller, and 31 is a power motor. DETAILED DESCRIPTION

[0018] The following embodiments of the technical solution of the present invention are described in detail in conjunction with the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the present invention, and are therefore only used as examples, and cannot be used to limit the protection scope of the present invention.

[0019] It should be noted that, unless otherwise specified, the technical terms or scientific terms used in this application should have the common meanings understood by those skilled in the art in the field to which the present invention relates.

[0020] Example:

[0021] like Figures 1 to 3As shown, the township sewage treatment system of the present invention includes a rainwater system connected to the sewage system through a diversion well 3, the sewage system includes a municipal sewage pipe 1 and a plurality of water-using buildings 6, each of the water-using buildings 6 is connected to a sewage branch pipe 7, and the plurality of sewage branch pipes 7 converge at a sewage main pipe, which is connected to a sewage lift 9 and is equipped with a corresponding first valve 19; the sewage lift 9 is connected to a negative pressure pipe 10, which is connected to a vacuum pump station 11, and the vacuum pump station 11 is connected to the municipal sewage pipe 1 through a sewage pipe 12, and the municipal sewage pipe 1 is connected to a sewage treatment station 13, and the sewage treatment station 13 is provided with a discharge pipe 14. The township sewage treatment system of the present invention cooperates with the diversion well 3, the rainwater system, the water-using building 6, the sewage branch pipe 7, the sewage main pipe, the sewage lift 9, the first valve 19, the negative pressure pipeline 10, the vacuum pump station 11, the sewage pipe 12, the municipal sewage pipe 1 and the sewage treatment station 13. On sunny days or the beginning of rain, the water of the rainwater system flows into the sewage main pipe through the diversion well 3, and the sewage discharged from the water-using building 6 flows into the sewage main pipe through the sewage branch pipe 7, and then passes through the sewage lift 9, the negative pressure pipeline 10, the sewage pipe 12, the municipal sewage pipe 1 in turn, and finally reaches the sewage treatment station 13 for treatment and discharge. When there is a lot of rainwater, the rainwater system does not flow into the sewage main pipe but directly discharges. It can effectively separate rainwater and sewage, and can solve the overflow problem of the sewage treatment plant during heavy rain. In addition, the use of the vacuum pump station 11 allows the sewage to be lifted under negative pressure, which has the advantages of water saving, odor isolation, no infiltration and leakage, high collection rate, good airtightness, etc.

[0022] Preferably, the rainwater system comprises a rainwater collection trough 5, which is connected to a rainwater pipe 4, which is connected to a diversion well 3, which is connected to a municipal rainwater pipe 2 via a rainwater diversion pipe 16; the diversion well 3 is also connected to a sewage diversion pipe 15, which is connected to a sewage main pipe and is equipped with a corresponding second valve 18. In the early rain or sunny days, the diversion well 3 allows rainwater to enter the sewage diversion pipe 15, the second valve 18 is opened, and the water obtained by the rainwater collection trough 5 enters the sewage main pipe. In heavy rain or rainstorm, the diversion well 3 allows the water to enter the rainwater diversion pipe 16.

[0023] Preferably, a septic tank 8 is provided between the first valve 19 and the sewage lift 9. The septic tank 8 can be used to generate biogas and the like.

[0024] Preferably, a hydraulically operated downward opening weir gate 20 is provided in the diversion well 3 between the rainwater pipe 4 and the rainwater diversion pipe 16, and the sewage diversion pipe 15 is located between the hydraulically operated downward opening weir gate 20 and the rainwater pipe 4, and is equipped with a diversion mechanism. In heavy rain or rainstorm, the diversion mechanism is closed and the hydraulically operated downward opening weir gate 20 is opened. In the initial rain or light rain, the hydraulically operated downward opening weir gate 20 is closed and the diversion mechanism is opened.

[0025] Preferably, a floating baffle 23 for preventing backflow is provided between the diversion mechanism and the hydraulic downward opening weir gate 20, so as to prevent backflow of rainwater.

[0026] Preferably, the diversion mechanism comprises a hydraulic cylinder 21, which is matched with a gate 22 matched with the sewage diversion pipe 15. The hydraulic cylinder 21 drives the gate 22 to rise and fall, thereby realizing the opening and closing of the gate 22, thereby realizing the diversion function.

[0027] Preferably, the sewage lift 9 includes a housing 24 and a power motor 31, the rotating shaft 27 of the power motor 31 extends into the housing 24 and is connected to a spiral centrifugal impeller 30; a sewage inlet 26 and a sewage outlet 25 are also provided on the housing 24, the sewage inlet 26 is connected to the septic tank 8, and the sewage outlet 25 is connected to the negative pressure pipe 10. The spiral centrifugal impeller 30 will automatically screw into the soft solid, so there will be no blockage, and the back of the spiral centrifugal impeller 30 is also designed with a reverse thread groove to prevent fiber accumulation. The spiral propulsion and gentle conveying of the spiral centrifugal impeller 30 ensure that fiber materials several times the circumference of the impeller will not entangle the spiral centrifugal impeller 30, completely solving the problems of blockage and entanglement.

[0028] Preferably, the rotating shaft 27 is equipped with a bearing 28 and a sealing ring 29 fitted with the bearing 28, which can greatly improve the sealing performance.

[0029] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein by equivalents. These modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present invention, and they should all be included in the scope of the claims and specification of the present invention.

Claims

1. Township sewage treatment system, characterized by: The invention relates to a rainwater system which is connected to a sewage system through a diversion well (3). The sewage system comprises a municipal sewage pipe (1) and a plurality of water-using buildings (6). Each water-using building (6) is connected to a sewage branch pipe (7). The plurality of sewage branch pipes (7) converge into a sewage main pipe. The sewage main pipe is connected to a sewage lifter (9) and is equipped with a corresponding first valve (19). The sewage lifter (9) is connected to a negative pressure pipe (10). The negative pressure pipe (10) is connected to a vacuum pump station (11). The vacuum pump station (11) is connected to the municipal sewage pipe (1) through a sewage discharge pipe (12). The municipal sewage pipe (1) is connected to a sewage treatment station (13). The sewage treatment station (13) is provided with a discharge pipe (14).

2. The township sewage treatment system according to claim 1, characterized in that: The rainwater system comprises a rainwater collection trough (5), the rainwater collection trough (5) is connected to a rainwater pipe (4), the rainwater pipe (4) is connected to a diversion well (3), the diversion well (3) is connected to a municipal rainwater pipe (2) via a rainwater diversion pipe (16); the diversion well (3) is also connected to a sewage diversion pipe (15), the sewage diversion pipe (15) is connected to a sewage main pipe, and is equipped with a corresponding second valve (18).

3. The township sewage treatment system according to claim 2, characterized in that: A septic tank (8) is arranged between the first valve (19) and the sewage lift (9).

4. The township sewage treatment system according to claim 3, characterized in that: A hydraulically operated downward opening weir gate (20) located between the rainwater pipe (4) and the rainwater diversion pipe (16) is arranged in the diversion well (3); the sewage diversion pipe (15) is located between the hydraulically operated downward opening weir gate (20) and the rainwater pipe (4) and is equipped with a diversion mechanism.

5. The township sewage treatment system according to claim 4, characterized in that: A floating baffle (23) for preventing backflow is arranged between the diversion mechanism and the hydraulically driven downward opening weir gate (20).

6. The township sewage treatment system according to claim 5, characterized in that: The diversion mechanism comprises a hydraulic cylinder (21), and the hydraulic cylinder (21) is matched with a gate (22) matched with the sewage diversion pipe (15).

7. The township sewage treatment system according to claim 6, characterized in that: The sewage lift (9) comprises a housing (24) and a power motor (31), wherein a rotating shaft (27) of the power motor (31) extends into the housing (24) and is connected to a spiral centrifugal impeller (30); a sewage inlet (26) and a sewage outlet (25) are also provided on the housing (24), wherein the sewage inlet (26) is connected to a septic tank (8), and the sewage outlet (25) is connected to a negative pressure pipe (10).

8. The township sewage treatment system according to claim 7, characterized in that: The rotating shaft (27) is matched with a bearing (28) and a sealing ring (29) fitted with the bearing (28).

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