CN210049357U

CN210049357U - Combined type distributed sewage pretreatment system

Info

Publication number: CN210049357U
Application number: CN201920642794.XU
Authority: CN
Inventors: 张伟娜; 崔海龙; 陆波; 姜素云
Original assignee: Zhongye Jingcheng Engineering Technology Co Ltd
Current assignee: MCC Capital Engineering and Research Incorporation Ltd; Zhongye Jingcheng Engineering Technology Co Ltd
Priority date: 2019-05-07
Filing date: 2019-05-07
Publication date: 2020-02-11
Anticipated expiration: 2029-05-07

Abstract

The utility model discloses a modular sewage pretreatment systems that distributes, promote pump station (21) including sump pit (20) and integration, sump pit (20) are connected with inlet tube (8) that can introduce this sump pit (20) with sewage, connect through connecting pipe (22) between sump pit (20) and the integration promotion pump station (21), are equipped with water pump (1) in the integration promotion pump station (21), and integration promotion pump station (21) are connected with outlet pipe (9), and water pump (1) can promote the sewage in pump station (21) with the integration and pass through outlet pipe (9) and discharge. This combination formula sewage pretreatment system that distributes can be in situ preliminary treatment small region sewage, has the pressure to carry to sewage treatment plant further centralized processing through utility tunnel sewage.

Description

Combined type distributed sewage pretreatment system

Technical Field

The utility model relates to a sewage treatment field, specificly a modular distribution sewage pretreatment system.

Background

The municipal sewage treatment system at present is mainly a centralized treatment system, namely, after sewage in a defined sewage discharge range is collected, the sewage is conveyed to a sewage treatment plant through a pressureless pipe network system to be treated in a unified and centralized manner. In the centralized treatment mode, sewage pipelines are used for conveying sewage by adopting a natural slope, the pipeline burying depth is increased, and the investment of municipal pipe networks accounts for 60-70% of the total investment of sewage treatment.

The construction of utility tunnel can effectively eliminate city "zip fastener way", and guarantee road traffic is unobstructed, guarantees the pipeline safety operation simultaneously. But the sewage pipeline non-pressure conveying, the inspection well setting and the pipeline burial depth all restrict the sewage pipeline to be brought into the comprehensive pipe gallery, and the advantages of the comprehensive pipe gallery in municipal engineering cannot be fully highlighted. Therefore, a method which can facilitate the incorporation of sewage into the comprehensive pipe gallery and can reduce the total investment of sewage treatment is urgently needed to be found.

SUMMERY OF THE UTILITY MODEL

In order to bring sewage pipe into utility tunnel, the utility model provides a modular sewage pretreatment system that distributes, this modular sewage pretreatment system that distributes can be in advance treatment small region sewage on the spot, have the sewage to press and carry to sewage treatment plant further centralized processing through utility tunnel.

The utility model provides a technical scheme that its technical problem adopted is: a combined distributed sewage pretreatment system comprises a water collecting well and an integrated lifting pump station which are connected through a connecting pipe, wherein the water collecting well is connected with a water inlet pipe capable of introducing sewage into the water collecting well; be equipped with the water pump in the integration promotion pump station, the integration promotion pump station is connected with the outlet pipe, and the water pump can pass through the outlet pipe with the sewage in the integration promotion pump station and discharge.

A central cylinder is sleeved in the water collecting well, one end of the water inlet pipe is connected with the central cylinder, and the other end of the water inlet pipe is located outside the water collecting well.

One end of the water inlet pipe is provided with a basket type grating or a crushing type grating, and a first ladder stand and a dredging guide rail are arranged in the central cylinder.

The lower end of the central cylinder is positioned above the bottom of the water collecting well, an overflow weir is sleeved between the wall of the water collecting well and the central cylinder, the overflow weir is of a cylindrical structure with the upper end and the lower end open, and the lower end of the overflow weir is hermetically connected with the lower end of the central cylinder through an annular plate.

The water collecting well is internally provided with a cover plate, the cover plate is positioned between the upper end of the overflow weir and the upper end of the water collecting well, the water inlet pipe is positioned between the upper end of the overflow weir and the cover plate, and the inlet end of the connecting pipe is positioned between the upper end of the overflow weir and the lower end of the overflow weir.

A service platform is arranged in the integrated lifting pump station, the water pump is located below the service platform, and the water outlet pipe is located above the service platform.

The water pump is the self coupling formula immersible pump, the self coupling formula immersible pump loops through self coupling base, pipeline under pressure, check valve and butterfly valve and is connected with the entry end of outlet pipe, and the exit end of outlet pipe is located outside the integration promotion pump station.

The self-coupling base is located below the service platform, the pressure pipeline penetrates through the service platform, and the check valve and the butterfly valve are located above the service platform.

Be equipped with in the integration promotion pump station and be used for making the guide rail that the water pump goes up and down, still be equipped with the pressure sensor who is used for measuring the depth of water in the integration promotion pump station, guide rail and pressure sensor all are located service platform's below.

The upper end outer joint of integration promotion pump station has well lid, safety grid, electrical control cabinet and ventilation pipe, is equipped with the second cat ladder in the upper portion of integration promotion pump station, is equipped with a plurality of water pumps of parallelly connected in the integration promotion pump station.

The utility model has the advantages that:

1. the utility model discloses a little regional sewage is collected to distributing type sewage collection, preliminary treatment and distributing type sewage lift system combination mode, has realized the distributed processing of sewage.

2. The sewage enters the central cylinder of the water collecting well in a rotational flow mode, so that sediments in the sewage can be deposited for sewage pretreatment.

3. The inlet of the water collecting well is provided with a basket grating for intercepting large-particle obstacles, the grating is provided with a guide rail, and when the grating intercepts more obstacles, the old grating can be lifted out through the guide rail and a new grating is led in.

4. Also can adopt sump pit sewer line entry to set up crushing formula grid, can smash large granule barrier, the grid need not frequent change.

5. A central cylinder of the water collecting well is provided with a crawling ladder, so that the water collecting well is convenient to check and desilt.

6. Sewage overflows from an overflow weir on the central cylinder of the water collecting well to the gravity flow well, so that water flow can uniformly enter a lifting system.

7. Adopt the self coupling water pump to set up the guide rail in the junction, accessible guide rail goes up and down to transport the water pump during maintenance, need not personnel and goes into the well operation.

8. The liquid level control water pump is started, stopped, gives an alarm and the like, manual operation is not needed, and the personnel cost is saved.

9. The water collecting well and the integrated lifting pump station in the system are all underground, so that the occupied area is saved.

10. The system can solve the defect that the traditional gravity flow sewage pipeline needs to increase the pipeline burial depth along with the pipeline length.

11. This system need not the interval certain distance and sets up the sewage inspection shaft, has solved the more problem of town road well lid.

12. This system promotes the transport to sewage treatment plant with preliminary treatment sewage, has realized that sewage pipe gets into utility tunnel pressure delivery.

Drawings

The accompanying drawings, which form a part of the present application, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention and not to limit the invention.

Figure 1 is a schematic overview of a combined distributed sewage pretreatment system according to the present invention as described in example 1.

Figure 2 is a general schematic diagram of a combined distributed sewage pretreatment system of the present invention as described in example 2.

1. A water pump; 2. a self-coupling base; 3. a guide rail; 4. a guide rail; 5. a check valve; 6. a butterfly valve; 7. a pressure line; 8. a water inlet pipe; 9. a water outlet pipe; 10. a service platform; 11. a second ladder stand; 12. a well cover; 13. a safety grill; 14. a basket-type grid; 15. a pressure sensor; 16. an electrical control cabinet; 17. a vent pipe; 18. a cable duct; 19. dredging the guide rail; 20. a water collecting well; 21. an integrated lifting pump station; 22. a connecting pipe; 23. a central barrel; 24. an overflow weir; 25. a first ladder stand; 26. a cover plate; 27. an annular plate.

Detailed Description

It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present invention will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.

Example 1

The utility model provides a modular sewage pretreatment systems that distributes, including sump pit 20 and integration lift pump station 21, sump pit 20 is connected with can introduce the inlet tube 8 in this sump pit 20 with sewage, connect through connecting pipe 22 between sump pit 20 and the integration lift pump station 21, be equipped with water pump 1 in the integration lift pump station 21, integration lift pump station 21 is connected with outlet pipe 9, water pump 1 can discharge the sewage in the integration lift pump station 21 outside integration lift pump station 21 through outlet pipe 9, as shown in fig. 1.

In this embodiment, a central cylinder 23 is sleeved in the water collecting well 20, the central line of the water collecting well 20 coincides with the central line of the central cylinder 23, an annular cavity is formed between the well wall of the water collecting well 20 and the central cylinder 23, a distance exists between the lower end of the central cylinder 23 and the lower end of the water collecting well 20, the left end of the water inlet pipe 8 is connected with the central cylinder 23, and the right end of the water inlet pipe 8 is located outside the water collecting well 20.

In this embodiment, the left end of the water inlet pipe 8 is provided with a basket type grating 14 or a crushing type grating, and the central cylinder 23 is provided with a first ladder stand 25 and a dredging guide rail 19. When the basket type grating 14 is provided, the central cylinder 23 is further provided with a guide rail 4 for lifting the basket type grating 14. The basket type grating 14 can intercept large-particle obstacles, and when the grating intercepts more obstacles, the old grating can be lifted out of the guide rail and a new grating can be led in. If the crushing type grating is adopted, large-particle obstacles can be crushed, and the crushing type grating does not need to be frequently replaced.

In this embodiment, the lower end of the central cylinder 23 is located above the bottom of the water collecting well 20, an overflow weir 24 is sleeved between the well wall of the water collecting well 20 and the central cylinder 23, the overflow weir 24 is a cylindrical structure with both upper and lower ends open, an annular space is formed between the overflow weir 24 and the well wall of the water collecting well 20, an annular space is formed between the overflow weir 24 and the central cylinder 23, the lower end of the overflow weir 24 is hermetically connected with the lower end of the central cylinder 23 through an annular plate 27, and the water level in the water collecting well 20 can enter between the overflow weir 24 and the central cylinder 23 only if the water level exceeds the upper end of the overflow weir 24.

In this embodiment, a cover plate 26 is provided in the sump 20, the cover plate 26 is located between the upper end of the overflow weir 24 and the upper end of the sump 20, the water inlet pipe 8 is located between the upper end of the overflow weir 24 and the cover plate 26, the inlet end of the connecting pipe 22 is located between the upper end of the overflow weir 24 and the lower end of the overflow weir 24, the inlet end of the connecting pipe 22 is located between the wall of the sump 20 and the central cylinder 23, and the upper end of the sump 20 is provided with a well lid, as shown in fig. 1.

In this embodiment, sewage enters the central cylinder 23 of the water collecting well through the water inlet pipe 8 in a rotational flow mode, so that sediment in the sewage can be deposited for sewage pretreatment. The first ladder stand 25 and the dredging guide rail 19 are arranged, so that the checking and dredging can be conveniently carried out. The settled sewage overflows from the upper end of the overflow weir 24 in the water collecting well 20 to the gravity flow well, so that water flow can uniformly enter the integrated lifting pump station 21.

In this embodiment, a service platform 10 is disposed in the integrated lift pump station 21, the water pump 1 is located below the service platform 10, and the water outlet pipe 9 is located above the service platform 10. Preferably, the water pump 1 is a self-coupling submersible pump, the self-coupling submersible pump is connected with the inlet end of the water outlet pipe 9 sequentially through the self-coupling base 2, the pressure pipeline 7, the check valve 5 and the butterfly valve 6, and the outlet end of the water outlet pipe 9 is positioned outside the integrated lifting pump station 21.

In this embodiment, the autotransformer base 2 is located below the service platform 10, the pressure pipe 7 is in a vertical state, the pressure pipe 7 passes through the service platform 10, and the check valve 5 and the butterfly valve 6 are located above the service platform 10. Be equipped with in the integration lift pump station 21 and be used for making the guide rail 3 that water pump 1 goes up and down, still be equipped with the pressure sensor 15 that is used for measuring the depth of water in the integration lift pump station 21, guide rail 3 and pressure sensor 15 all are located the below of service platform 10.

The water pump 1 adopts the self-coupling type submersible pump, the guide rail is arranged at the joint, and the water pump can be transported through the guide rail in a lifting mode during maintenance without personnel going into the well. The pressure sensor 15 can control the starting, stopping, alarming and the like of the water pump 1 by liquid level, manual operation is not needed, and personnel cost is saved. The water collecting well 20 and the integrated lifting pump station 21 are all underground, only the well covers of the water collecting well 20 and the integrated lifting pump station 21 are displayed on the ground, and occupied land is saved. The system can solve the defect that the traditional gravity flow sewage pipeline needs to increase the pipeline burial depth along with the pipeline length.

In addition, the upper end of the integrated lifting pump station 21 is externally connected with a well cover 12, a safety grid 13, an electrical control cabinet 16 and a ventilation pipe 17, the upper part of the integrated lifting pump station 21 is internally provided with a second ladder stand 11 and a cable pipe 18, the integrated lifting pump station 21 can be internally provided with a plurality of water pumps 1 which are connected in parallel, and the water pumps 1 can work simultaneously or alternatively. This system need not the interval certain distance and sets up the sewage inspection shaft, has solved the more problem of town road well lid. The pretreated sewage is lifted and conveyed to a sewage treatment plant, and the pressure conveying of a sewage pipeline is realized.

The operation of the combined distributed sewage pretreatment system will now be described.

Sewage enters the water collecting well 20 from the water inlet pipe 8 and is precipitated at the lower part of the water collecting well 20, after the water level of the sewage exceeds the inlet end of the connecting pipe 22, the precipitated sewage enters the integrated lifting pump station 21 through the connecting pipe 22, when the water level of the sewage in the integrated lifting pump station 21 reaches the design height, the water pump 1 is started and discharges the sewage in the integrated lifting pump station 21 out of the integrated lifting pump station 21 from the water outlet pipe 9, the water outlet pipe 9 is externally connected with a conveying pipeline, and the conveying pipeline is arranged in a comprehensive pipe gallery.

Example 2

This embodiment is an improvement of embodiment 1, and the only difference between this embodiment and embodiment 1 is that the inlet end of the connecting pipe 22 is located between the upper end of the overflow weir 24 and the lower end of the overflow weir 24 in the vertical direction, and the inlet end of the connecting pipe 22 is located between the overflow weir 24 and the central cylinder 23 in the horizontal direction, as shown in fig. 2, in this structure, the sewage can be deposited twice in the water collecting well 20, and the effect of deposition and purification is good.

During operation, sewage enters the water collecting well 20 from the water inlet pipe 8 and is precipitated for the first time at the lower part of the water collecting well 20, after the water level of the sewage exceeds the upper end of the overflow weir 24, the precipitated sewage firstly enters between the overflow weir 24 and the central cylinder 23 for the second inspection, and after the water level of the sewage exceeds the inlet end of the connecting pipe 22, the sewage enters the integrated lifting pump station 21 through the connecting pipe 22.

The rest of the technical features in this embodiment are the same as those in embodiment 1, and the present invention will not be described in detail for the sake of saving space. In addition, for the convenience of understanding and description, the present invention is expressed in terms of absolute positional relationship, wherein the term "upper" indicates the direction of the upper side of fig. 1 and 2, "lower" indicates the direction of the lower side of fig. 1 and 2, "left" indicates the left direction of fig. 1 and 2, and "right" indicates the right direction of fig. 1 and 2. The present invention has been described with reference to the viewing angle of the user, but the above words cannot be understood or interpreted as limitations to the scope of the present invention.

The above description is only for the specific embodiments of the present invention, and the scope of the present invention can not be limited by the embodiments, so that the replacement of the equivalent components or the equivalent changes and modifications made according to the protection scope of the present invention should still belong to the scope covered by the present patent. In addition, the utility model provides an between technical feature and the technical feature, between technical feature and technical scheme, technical scheme and the technical scheme all can the independent assortment use.

Claims

1. A combined distributed sewage pretreatment system is characterized by comprising a water collecting well (20) and an integrated lifting pump station (21) which are connected through a connecting pipe (22), wherein,

the water collecting well (20) is connected with a water inlet pipe (8) which can lead sewage into the water collecting well (20);

be equipped with water pump (1) in the integration promotion pump station (21), integration promotion pump station (21) are connected with outlet pipe (9), and water pump (1) can be with the sewage in the integration promotion pump station (21) through outlet pipe (9) discharge.

2. The combined distributed sewage pretreatment system of claim 1, wherein a central cylinder (23) is sleeved in the water collection well (20), one end of the water inlet pipe (8) is connected with the central cylinder (23), and the other end of the water inlet pipe (8) is positioned outside the water collection well (20).

3. A combined distributed sewage pretreatment system according to claim 2, characterized in that one end of the inlet pipe (8) is provided with a basket grid (14) or a grating, and in the central cylinder (23) is provided with a first ladder (25) and a dredging guide (19).

4. The combined distributed sewage pretreatment system according to claim 1, wherein the lower end of the central cylinder (23) is located above the bottom of the water collecting well (20), an overflow weir (24) is sleeved between the wall of the water collecting well (20) and the central cylinder (23), the overflow weir (24) is a cylindrical structure with both open upper and lower ends, and the lower end of the overflow weir (24) is hermetically connected with the lower end of the central cylinder (23) through an annular plate (27).

5. The combined distributed sewage pretreatment system of claim 4, wherein a cover plate (26) is provided in the sump (20), the cover plate (26) is positioned between an upper end of the overflow weir (24) and an upper end of the sump (20), the water inlet pipe (8) is positioned between the upper end of the overflow weir (24) and the cover plate (26), and the inlet end of the connection pipe (22) is positioned between the upper end of the overflow weir (24) and a lower end of the overflow weir (24).

6. The combined distributed sewage pretreatment system according to claim 1, wherein a service platform (10) is arranged in the integrated lifting pump station (21), the water pump (1) is positioned below the service platform (10), and the water outlet pipe (9) is positioned above the service platform (10).

7. The combined distributed sewage pretreatment system according to claim 6, wherein the water pump (1) is a self-coupling submersible pump, the self-coupling submersible pump is connected with an inlet end of the water outlet pipe (9) sequentially through the self-coupling base (2), the pressure pipeline (7), the check valve (5) and the butterfly valve (6), and an outlet end of the water outlet pipe (9) is located outside the integrated lifting pump station (21).

8. The combined distributed sewage pretreatment system of claim 7, wherein the autotransformer base (2) is located below the service platform (10), the pressure pipe (7) passes through the service platform (10), and the check valve (5) and the butterfly valve (6) are located above the service platform (10).

9. The combined distributed sewage pretreatment system according to claim 6, wherein a guide rail (3) for lifting the water pump (1) is arranged in the integrated lifting pump station (21), a pressure sensor (15) for measuring water depth is further arranged in the integrated lifting pump station (21), and the guide rail (3) and the pressure sensor (15) are both positioned below the service platform (10).

10. The combined distributed sewage pretreatment system according to claim 1, wherein a well cover (12), a safety grid (13), an electrical control cabinet (16) and a ventilation pipe (17) are connected to the outside of the upper end of the integrated lifting pump station (21), a second ladder (11) is arranged in the upper portion of the integrated lifting pump station (21), and a plurality of water pumps (1) connected in parallel are arranged in the integrated lifting pump station (21).