Rain and sewage staggered well with sewage interception and sand setting functions

Abstract

The utility model provides a rain and sewage staggered well with sewage interception and sand setting functions. The sewage pipe penetrates into the staggered well, the problem that the utilization rate of elevations at the head end and the tail end of a rain and sewage pipeline is insufficient due to the fact that the pipelines avoid each other when the rain and sewage pipeline vertically collides can be effectively solved, meanwhile, the sewage intercepting grating is arranged in the sewage intercepting well, and blocking of an overflowing hole and the staggered well can be effectively avoided. And the sand setting well can collect fine mud and sand passing through the sewage intercepting grating to one place, so that later cleaning and maintenance are facilitated. The sewage interception staggered well not only guarantees smooth discharge of rain and sewage, improves the elevation utilization rate between the beginning end and the tail end of a rain pipeline and the tail end of a sewage pipeline and reduces the number of lifting pump stations, but also is compact in structure and convenient to construct, can be prefabricated in a factory, reduces the construction cost, and has a good application prospect.

Description

Technical Field

[0001] The utility model relates to the field of rain and sewage pipe laying, in particular to a rain and sewage interlaced well with sewage interception and sand settling functions. Background Art

[0002] With the continuous advancement of my country's urbanization process, from the perspective of pipeline burial depth, the laying of rain and sewage pipes has the following situation: Under the premise of ensuring the thickness of the soil cover at the beginning of the rain and sewage pipes and utilizing the existing urban sewage treatment plants and the original flood discharge channels, that is, under the premise of a certain burial depth at the beginning and end of the urban rain and sewage pipes, with the continuous expansion of the city boundaries, the interlacing of underground pipes has become increasingly serious. In order to ensure that rain and sewage within the service range of rain and sewage pipes can be smoothly collected and transported to flood discharge channels or sewage treatment plants, rain and sewage pipe networks can usually only be laid at staggered elevations and additional lifting pump stations can be added. In order to improve the elevation utilization rate between the beginning and end of rain and sewage pipes and reduce the number of lifting pump stations, a staggered well with sewage interception and sand settling functions, which can efficiently utilize the elevation difference between the beginning and end of the pipe and effectively avoid vertical collision of the pipe is very necessary. Utility Model Content

[0003] The utility model aims at the problem that the vertical elevation collision of rain and sewage pipes now leads to the need to lay rain and sewage pipes at the wrong elevation, which reduces the elevation utilization rate between the beginning and end of the rain and sewage pipes, and thus requires the installation of a lifting pump station in the rain and sewage pipes. The utility model proposes a rain and sewage staggered well with sewage interception and sand settling functions and guaranteed drainage capacity. The staggered well not only ensures the smooth discharge of rain and sewage, improves the elevation utilization rate between the beginning and end of the pipe, and reduces the number of lifting pump stations, but also has a compact structure, convenient construction, can be prefabricated, and has good application prospects.

[0004] In order to achieve the above purpose, the technical solution adopted by the utility model is as follows:

[0005] A rain and sewage interlaced well with sewage interception and sand settling functions comprises a sewage interception well and an interlaced well.

[0006] The sewage interception well and the staggered well share a wellbore wall, and the shared wellbore wall is provided with an overflow pipe and a flow hole in a spatial order from top to bottom. The bottom elevation of the overflow pipe is higher than the top elevation of the rainwater inflow pipe of the sewage interception well, and the bottom of the flow hole is close to the finished surface of the staggered well bottom.

[0007] The sewage interception well comprises a well shaft, a well cover is installed on the top of the well shaft, the bottom of the well shaft is a well base, the well shaft is provided with a rainwater inflow pipe, and a sewage interception grille is installed in the well shaft.

[0008] The staggered well comprises a well shaft, a well cover is installed on the top of the well shaft, a well base with a sand settling well is provided at the bottom of the well shaft, a rainwater outflow pipe is provided in the well shaft, and a sewage pipe runs through the well shaft.

[0009] The diameter of the rainwater outflow pipe is greater than or equal to the rainwater inflow pipe, the water cross-sectional area of ​​the flow hole is greater than or equal to the water cross-sectional area of ​​the rainwater inflow pipe, the diameter of the overflow pipe is greater than or equal to the diameter of the rainwater inflow pipe, and the water cross-sectional area between the lower edge of the sewage pipe and the bottom of the staggered well is greater than or equal to the water cross-sectional area of ​​the rainwater inflow pipe.

[0010] Compared with the prior art, the beneficial effects of the utility model are:

[0011] 1. The rain and sewage staggered well with sewage interception and sand settling functions can effectively solve the problem of insufficient underground elevation utilization caused by the mutual avoidance of the rain and sewage pipes when the elevations collide, by passing the sewage pipes through the staggered wells. It is especially suitable for controlling the buried depth of rain and sewage main pipes in urban municipal and district-level large public buildings. At the same time, it is suitable for the diversion and reconstruction of rain and sewage in old communities, reducing the frequency of mechanical lifting measures due to insufficient soil covering in the community or too shallow elevation of the reserved interface of the municipality.

[0012] 2. The rain and sewage interlaced well with sewage interception and sand settling functions can effectively avoid blockage of flow holes and interlaced wells by setting sewage interception grids in the sewage interception wells. In addition, the setting of sewage interception grids is also convenient for later fixed-point and centralized cleaning and maintenance.

[0013] 3. The rain and sewage interlaced well with sewage interception and sand settling functions can collect the fine sediment passing through the sewage interception grille in one place by setting a sand settling well at the lowest elevation in the interlaced well, which is convenient for later cleaning and maintenance.

[0014] 4. The cross-sectional water area of ​​the flow hole of the rainwater and sewage well with sewage interception and sand settling functions, and the cross-sectional water area formed by the lower edge of the sewage pipe and the finished surface of the bottom of the cross-sectional water well are both greater than or equal to the cross-sectional water area of ​​the rainwater inflow pipe of the sewage interception well, ensuring the rainwater drainage capacity of the cross-sectional water well. At the same time, because the width of the well wall shared by the sewage interception well and the cross-sectional water well is greater than the diameter of the rainwater inflow pipe, under the premise of ensuring the cross-sectional water area of ​​the flow hole, by reducing the height of the flow hole, the overall buried depth of the rainwater and sewage pipes in the cross-sectional water well is shallower and more cost-effective than the traditional vertical staggered avoidance laying method of rainwater and sewage pipes.

[0015] 5. The cross-sectional area of ​​the overflow pipe of the rainwater and sewage well with sewage interception and sand settling functions is greater than or equal to the cross-sectional area of ​​the rainwater inflow pipe of the sewage interception well, ensuring that the drainage capacity of the overflow pipe is not less than that of the rainwater inflow pipe. The setting of the overflow pipe can prevent the sewage interception well from overflowing due to the blockage of the sewage interception grille caused by the large amount of debris contained in the initial rainwater during the rainy season every year.

[0016] 6. The rain and sewage interlaced well with sewage interception and sand settling functions has a common well wall with the sewage interception well and the interlaced well, so that the utility model occupies a small area, has a compact structure, can be prefabricated in a factory, and reduces the project cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 The utility model discloses a rain and sewage staggered well plan with sewage interception and sand settling functions.

[0018] Figure 2 It is the sectional view 1-1 of the utility model.

[0019] Figure 3 It is the sectional view 2-2 of the utility model.

[0020] As shown in the figure: 1- sewage interception well, 2- staggered well, 3- rainwater inflow pipe, 4- rainwater outflow pipe, 5- sewage pipe, 6- flow hole, 7- sand settling well, 8- common well wall, 9- well base, 10- overflow pipe, 11- sewage interception grille, 12- sewage interception well cover, 13- staggered well cover, 14- anti-fall net, 15- maintenance ladder, 16- waterproof casing. DETAILED DESCRIPTION

[0021] The utility model is further described below in conjunction with the accompanying drawings and specific embodiments.

[0022] Please also read Figures 1 to 3 This embodiment provides a rainwater and sewage interlaced well with sewage interception and sand settling functions, including a sewage interception well 1, an interlaced well 2, a rainwater inflow pipe 3, a rainwater outflow pipe 4 and a sewage pipe 5. The rainwater pipe and the sewage pipe 5 composed of the rainwater inflow pipe 3 and the rainwater outflow pipe 4 are pipes that originally collide in the vertical elevation in the urban drainage system. The interlaced well 2 is set at the collision point of the pipes, and the sewage pipe 5 runs through the interlaced well 2. The rainwater pipe is divided into two parts, the rainwater inflow pipe 3 and the rainwater outflow pipe 4, by the sewage interception well 1 and the interlaced well 2. In this way, the rainwater received by the rainwater inflow pipe 3 is transferred through the sewage interception well 1 and the interlaced well 2 and then discharged into the rainwater outflow pipe 4, so that the cross collision problem of the rainwater inflow pipe 3, the rainwater outflow pipe 4 and the sewage pipe 5 originally occurring in the elevation can be solved.

[0023] The interception well 1 and the staggered well 2 share a well wall 8 and a well base 9. The shared well wall 8 is provided with an overflow pipe 10 and a flow hole 6 from top to bottom. The water flow cross-sectional area of ​​the overflow pipe 10 and the flow hole 6 is greater than or equal to the water flow cross-sectional area of ​​the rainwater inflow pipe 3, ensuring that the overflow pipe 10 and the flow hole 6 have sufficient drainage capacity so that the rainwater received by the rainwater inflow pipe 3 can smoothly enter the staggered well 2. In addition, in order to avoid the situation in the early rainy season when the rainwater pipe transports more debris and blocks the interception grille, causing the interception well cover 12 to overflow, the overflow pipe 10 is provided.

[0024] The sewage interception well 1 is provided with a sewage interception well cover 12, an anti-falling net 14, a rainwater inflow pipe 3 and a sewage interception grid 11 from top to bottom. The upper end of the sewage interception grid 11 is lower than the lower edge of the overflow pipe 10, and the lower end is lower than the lower edge of the rainwater inflow pipe 3.

[0025] The staggered well 2 is provided with a staggered well cover 13, an anti-falling net 14, a rainwater outflow pipe 4, a sewage pipe 5 and a sand settling well 7 from top to bottom. The sand settling well 7 can collect mud and sand deposited in the staggered well 2 in the rainwater in one place, which is convenient for centralized maintenance and cleaning in the later stage.

[0026] The inspection ladders 15 installed in the interception well 1 and the staggered well 2 are made of corrosion-resistant materials such as stainless steel or reinforced anti-corrosion carbon steel to improve the work safety of the maintenance personnel. In addition, waterproof sleeves 16 are installed at the joints of the interception well 1, the staggered well 2 and the rainwater inflow pipe 3, the rainwater outflow pipe 4 and the sewage pipe 5 to prevent leakage of rain and sewage.

[0027] In use, rainwater flows into the sewage interception well 1 through the rainwater inflow pipe 3. Under normal circumstances, after the mechanical interception effect of the sewage interception grid 11, the large-size impurities in the rainwater remain on the water-facing surface of the sewage interception grid 11, and the rainwater after interception treatment enters the staggered well 2 through the flow hole 6. The fine mud and sand in the rainwater entering the staggered well 2 are deposited in the sand settling well 7, and finally the rainwater is discharged to the downstream pipe network through the rainwater outflow pipe 4. When the sewage interception grid 11 is blocked, the water level on the water-facing surface of the sewage interception grid 11 continues to rise, and the rainwater entering the sewage interception well 1 enters the staggered well 2 through the overflow pipe 10. After the rainwater entering the staggered well 2 is sanded in the sand settling well 7, it is discharged to the downstream pipe network through the rainwater outflow pipe 4. In addition, since the width of the shared well wall between the intercepting well and the staggered well is greater than the diameter of the rainwater inlet pipe, under the premise of ensuring the water-passing cross-sectional area of ​​the flow hole, the height of the flow hole is lowered to ensure that the overall burial depth of the rain and sewage pipes in the staggered well is shallower and more cost-effective than the traditional vertical staggered avoidance laying method of rain and sewage pipes.

[0028] The staggered rain and sewage well with sewage interception and sand settling functions is an integrated rectangular structure enclosed by concrete or masonry. Compared with separately setting up sewage interception well 1 and staggered well 2, it has the characteristics of compact structure and can be prefabricated in a factory, effectively reducing the occupied area.

[0029] In summary, compared with the traditional pipeline laying method of vertically staggered pipelines and greatly increased burial depth of water wells and pipelines, the utility model achieves the effect of rainwater flowing into and passing through the inspection well in sections, and sewage passing through the inspection well completely under the conditions of rain and sewage flow and limited increase in the burial depth of the water well.

[0030] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A rainwater and sewage interlaced well with sewage interception and sand settling functions, characterized in that: It includes a sewage interception well and a staggered well. The sewage interception well and the staggered well are connected in series according to the order of rainwater flow. The sewage interception well and the staggered well share a wall of the wellbore. A sewage interception grid and a rainwater inflow pipe are arranged in the sewage interception well. A rainwater outflow pipe is arranged in the staggered well. A sand settling well is arranged at the bottom of the staggered well. A sewage pipe runs through the staggered well.

2. A rainwater and sewage staggered well with sewage interception and sand settling functions according to claim 1, characterized in that: The sewage interception well comprises a wellbore, a well cover is installed on the top of the wellbore, and the bottom of the wellbore is a well foundation.

3. A rainwater and sewage interlaced well with sewage interception and sand settling functions according to claim 1, characterized in that: The staggered well comprises a wellbore, a well cover is installed on the top of the wellbore, and the bottom of the wellbore is a well foundation.

4. The rainwater and sewage interlaced well with sewage interception and sand settling functions according to claim 1, characterized in that: The diameter of the rainwater outflow pipe is greater than or equal to the diameter of the rainwater inflow pipe, and the water flow cross-sectional area between the sewage pipe and the bottom of the staggered well is greater than or equal to the water flow cross-sectional area of ​​the rainwater inflow pipe.

5. The rainwater and sewage interlaced well with sewage interception and sand settling functions according to claim 1, characterized in that: An overflow pipe and a flow hole are arranged on one wall of the common well shaft in a spatial order from top to bottom. The diameter of the overflow pipe is greater than or equal to the diameter of the rainwater inlet pipe, the bottom elevation of the overflow pipe is higher than the top elevation of the rainwater inlet pipe of the sewage interception well, the bottom of the flow hole is level with the well bottom finish surface, and the water flow cross-sectional area of ​​the flow hole is greater than or equal to the water flow cross-sectional area of ​​the rainwater inlet pipe.

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