Rain and sewage diversion structure of mixed-flow sewage pipeline
Through the rain and sewage diversion structure of mixed sewage pipes, the slope and height of ordinary drainage pipes are transformed simplified, the rain and sewage diversion of old buildings is solved, and the problem of mixed rain and sewage renovation in old communities is achieved, and low cost and low land occupation is achieved The diversion of rain and sewage reduces pollution risks and maintenance costs, and is suitable for the needs of rain and sewage diversion and transformation in old communities.
Patent Information
- Application Number
- CN202420974216.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-08
- Publication Date
- 2024-12-31
- Estimated Expiration
- 2034-05-08
AI Technical Summary
The lack of rainwater and sewage diversion pipeline design in old buildings has led to high cost of sewage treatment and difficult transformation. The intelligent rainwater and sewage diversion device is expensive and takes up a large space, and requires continuous power supply and maintenance. The transformation of the interceptor well requires multiple directions and multiple directions. Pipeline diversion and deep well excavation are difficult to implement in limited space.
The rain and sewage diversion structure of mixed-flow sewage pipes is adopted, and the flow is intercepted through simple pipelines, and the slope and height of ordinary drainage pipes are transformed to realize the rain and sewage diversion, including the combined riser, slope connection pipe, sewage pipe, reverse slope pipe and resistance Flow pipes simplify pipeline design, reduce equipment and facilities, avoid deep well excavation and power supply, and reduce costs and land occupation demand.
It realizes the rain and sewage diversion with simple construction, small footprint, low cost and simple maintenance, solves the problem of mixed rain and sewage renovation in old communities, reduces the leakage rate of the diversion pipeline, reduces groundwater pollution, and meets the rain and sewage diversion. Retrofit requirements, no additional equipment and power supply, reduce maintenance costs and space consumption.
Smart Images
Figure CN222275705U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of rainwater and sewage diversion, in particular to a rainwater and sewage diversion structure of a mixed-flow sewage pipe. Background Art
[0002] In order to meet the needs of ecological environment and to make rational use of water resources, housing and urban and rural construction need to divert sewage and rainwater for treatment. Currently, new buildings have already achieved rainwater and sewage diversion pipeline design.
[0003] Some buildings that have been built for a long time, especially the older communities, did not have rainwater and sewage separation pipelines proposed and designed at that time. Now it is necessary to make up for the shortcomings of urban sewage collection and treatment facilities and realize full coverage, collection and treatment of sewage pipe networks as soon as possible. The rainwater and sewage separation transformation of drainage pipe networks is the key path to improve the quality and efficiency of urban sewage treatment.
[0004] In order to achieve full coverage of rainwater and sewage diversion, the city has gradually carried out the renovation of rainwater and sewage diversion in old communities. Among them, the renovation of balcony combined risers is one of the important tasks of rainwater and sewage diversion renovation in old communities. At present, residents' balconies are generally equipped with anti-theft facilities, and the balcony combined risers are set in the anti-theft facilities. The rainwater and sewage diversion requires the diversion of domestic water, especially the water for washing clothes, from the rainwater on the top floor. Therefore, it is necessary to set up another rainwater pipe on the balcony to separate rainwater from domestic water. A pipe is used to collect rainwater from the roof and directly drain it to the municipal rainwater pipe, while domestic water is drained to the municipal sewage pipe through a separate pipe, and then collected to the sewage treatment station for centralized treatment. The combined risers of these old buildings are set in anti-theft facilities, and the exterior walls of these old buildings are also hung with air-conditioning outdoor units, and the balconies are closed. These unfavorable factors will increase the difficulty of adding and renovating the risers on the balconies, resulting in the fact that the balcony combined risers of some buildings have no conditions to add drainage risers, and it is impossible to separate rainwater and sewage in the conventional double-pipe way of collecting rainwater and sewage separately. For this situation, the general renovation method is to install an intelligent rainwater and sewage diversion device or an interception well between the drain outlet of the balcony combined riser outside the lowest floor of the building and the municipal sewage pipe, so as to reduce the pollution of downstream water bodies to a certain extent.
[0005] This type of intelligent rainwater and sewage diversion device has high requirements for the installation environment. Generally, it is necessary to provide a continuous power supply to the intelligent diverter, and it is necessary to install a variety of sensors to identify sewage. Some reagents and consumables also need to be replaced and maintained for a long time. In addition, the price of intelligent rainwater and sewage diversion devices is relatively expensive, and the cost pressure of reconstruction of old communities is relatively high; some intelligent rainwater and sewage diversion devices also need to install a rainwater pipe for water quality judgment, which occupies a large space and further increases the difficulty of reconstruction. When the interception well reconstruction method is adopted, it is necessary to divert multiple pipes in multiple directions, and it is also necessary to dig deep wells for interception and separation. Most old communities are built with only a few buildings, and the outdoor space is extremely limited. There is not enough space to install the interception well pipes and diversion pits, which makes the reconstruction difficult.
[0006] Based on this, the utility model designs a rainwater-sewage diversion structure for a mixed-flow sewage pipe to solve the above-mentioned problem. Utility Model Content
[0007] The purpose of the utility model is to provide a rainwater and sewage diversion structure for a mixed sewage pipe. The device realizes rainwater and sewage diversion through a simple pipeline interception, utilizes common ordinary drainage pipes on the market, improves the slope and height of the pipeline transformation, intercepts sewage at the end of the balcony combined pipe, and reduces downstream water pollution. The most important thing is that the construction is simple, the space is small, the materials are convenient to obtain, the cost is low, the maintenance is simple, and the service life is long. The device solves the difficult problem of rainwater and sewage mixed connection transformation in old communities. It does not need to occupy too much space, nor does it require additional high-priced intelligent equipment, nor does it require the excavation of additional interception wells, nor does it require the addition of water quality judgment pipelines and equipment, nor does it require a continuous power supply. Even the device does not require additional equipment maintenance, and can easily complete the sewage pipeline transformation in old communities.
[0008] The utility model is implemented as follows: a rainwater-sewage diversion structure for a mixed-flow sewage pipe, comprising:
[0009] Combined risers, sloped connection pipes, sewage pipes, reverse slope pipes and flow control pipes;
[0010] The combined riser is a vertically arranged pipe, the upper end of which is connected to the building drainage pipe; the lower end of the combined riser is connected to the combined sewer pipe, which is arranged horizontally, and the rear end of the combined sewer pipe is connected to the slope connection pipe;
[0011] The slope connection pipe is a straight pipe that is laid obliquely with the front higher and the back lower, and the rear end of the slope connection pipe is connected to the sewage pipe and the reverse slope pipe respectively through a tee;
[0012] The sewage pipe and the sloped connecting pipe are on the same plane, and the rear end of the sewage pipe is connected to the municipal sewage pipe;
[0013] The reverse slope pipe is a straight pipe that is laid low at the front and high at the back, and the rear end of the reverse slope pipe is higher than the height of the sewage pipe;
[0014] The rear end of the reverse slope pipe is also connected to a choke pipe, which is also a straight pipe with a lower front and a higher back. The rear end of the choke pipe is connected to a municipal rainwater pipe.
[0015] The rear end height of the choke pipe is lower than the height position of the combined sewer pipe;
[0016] The diameter of the sewage pipe is smaller than the diameter of the reverse slope pipe.
[0017] The beneficial effects of the utility model are as follows: 1. The utility model uses commonly used pipeline materials to carry out drainage of the combined riser of old buildings, does not affect the water flow rate, has good hydraulic conditions, and only changes the flow direction of the pipeline without other equipment and facilities. The transformation method is particularly simple, and the complex problem is simplified. It is precisely because of the simple structure that the probability of leakage in the diversion pipeline is reduced, and the impact on groundwater pollution is small;
[0018] 2. No intelligent rainwater and sewage diversion device is used, no additional equipment installation is required, and no continuous power supply is required, so the device has a low engineering cost when in use, and can meet the requirements of rainwater and sewage diversion transformation work. There is no need for a separate rainwater pipe for testing. The construction is simple and the operation is simple. After the transformation is completed, there is almost no additional pipeline maintenance cost, and there is no need to maintain the rainwater and sewage diversion device;
[0019] 3. No interception well is used, and the space requirement is small. Only the setting and installation of sloped connecting pipes, sewage pipes and reverse slope pipes are added, which almost does not take up additional space and has little impact on the original environment of the community. The installation is flexible and convenient, and there is no need to renovate the interior of the residents' balcony, which solves the problem of rainwater and sewage diversion renovation of the combined pipes inside the building balcony. BRIEF DESCRIPTION OF THE DRAWINGS
[0020] The present invention will be further described below in conjunction with the embodiments with reference to the accompanying drawings.
[0021] Figure 1 It is a schematic diagram of the overall structure of the utility model;
[0022] Figure 2 This is a schematic diagram of the side structure of the overall pipeline of the utility model;
[0023] Figure 3 This is a schematic diagram of the overall pipeline structure from top view of the utility model;
[0024] Figure 4 This is a schematic diagram of the angle arrangement structure of the reverse slope pipe and the flow blocking pipe of the utility model.
[0025] In the accompanying drawings, the components represented by the reference numerals are listed as follows:
[0026] 1-combined riser, 11-combined sewer pipe, 12-combined diversion pipe, 2-slope connection pipe, 3-drain pipe, 31-sewage pipe, 4-reverse slope pipe, 41-blocking pipe, 42-rainwater pipe. DETAILED DESCRIPTION
[0027] See also Figures 1 to 4 As shown, the utility model provides a rainwater and sewage diversion structure for a mixed sewage pipe. In order to better understand the above technical solution, the above technical solution will be described in detail below in conjunction with the accompanying drawings in the specification and specific implementation methods.
[0028] In a specific embodiment of the technical solution of the utility model:
[0029] It includes a combined riser 1, a slope connection pipe 2, a sewage pipe 3, a reverse slope pipe 4 and a flow blocking pipe 41;
[0030] The combined riser 1 is a vertically arranged pipe, and the upper end of the combined riser 1 is connected to the building drainage pipe; the lower end of the combined riser 1 is connected to the combined sewer 11, the combined sewer 11 is horizontally arranged, and the rear end of the combined sewer 11 is connected to the slope connection pipe 2; the rear end of the combined sewer 11 is also connected to the combined diversion pipe 12, and the rear end of the combined diversion pipe 12 is connected to the front end of the slope connection pipe 2, the combined sewer 11, the combined diversion pipe 12 and the slope connection pipe 2 are in the same vertical plane, and the corner sizes at the connections between the combined sewer 11, the combined diversion pipe 12 and the slope connection pipe 2 are the same, and the corner size range is between 40°-60°.
[0031] The slope connection pipe 2 is a straight pipe that is laid obliquely with the front higher and the back lower. The rear end of the slope connection pipe 2 is connected to the sewage pipe 3 and the reverse slope pipe 4 through a tee.
[0032] The sewage pipe 3 and the sloped connecting pipe 2 are on the same plane, which is a high-front and low-back inclined plane, and the inclination angle is generally about 3°, which is convenient for draining sewage and making the water flow smoother. The rear end of the sewage pipe 3 is connected to the municipal sewage pipe 31; the sewage pipe 3 is laid with a high front and a low back, and the sloped connecting pipe 2 and the sewage pipe 3 have the same inclination slope ratio, that is, the same inclination angle, and the inclination slope ratio of the sewage pipe 3 is between 0.03 and 0.05. That is, the rear end is tilted downward at an angle of about 15-30°.
[0033] The reverse slope pipe 4 is a straight pipe that is laid with the front lower and the rear higher, and the rear end of the reverse slope pipe 4 is higher than the height position of the sewage pipe 31;
[0034] The rear end of the reverse slope pipe 4 is also connected to a choke pipe 41, which is also a straight pipe with a lower front and a higher rear. The rear end of the choke pipe 41 is connected to a municipal rainwater pipe 42.
[0035] The rear end height of the choke pipe 41 is lower than the height position of the combined sewer pipe 11;
[0036] The slope ratio of the choke tube 41 to the horizontal plane is in the range of 0.03 to 0.05; that is, the angle a between the choke tube 41 and the horizontal plane is in the range of 10° to 15°;
[0037] The slope angle b of the reverse slope pipe 4 is in the range of 30°-45°, depending on the number of users and the water flow, and is sufficient to ensure that the water flow of the residents cannot rush into the blocking pipe 41.
[0038] The height difference h between the rear end of the choke tube 41 and the front end of the reverse slope tube 4 is 30 mm to 50 mm.
[0039] The diameter of the sewage pipe 3 is smaller than that of the reverse slope pipe 4. The diameter of the reverse slope pipe 4 is 1-2 levels larger than that of the sewage pipe 3. In the sewer pipe, the diameter specifications of the plastic drainage pipes are DN32, DN40, DN50, DN63, DN75, DN90, DN110, DN125, DN160, etc., and the diameter is 1 or 2 levels larger, that is, the diameter size is pushed back by one or two specifications on the original basis. This classification of pipe diameters is common knowledge among those skilled in the art, and the reverse slope pipe 4 has the same diameter as the slope connection pipe 2.
[0040] It should be noted that:
[0041] 1. The current intelligent rainwater and sewage diversion device needs to be installed at the lower outlet of the combined riser 1, and a deep well needs to be excavated for installing the diversion device. However, the space required for this diversion device is not large, generally within 1 cubic meter. Different rainwater and sewage diversion devices are selected according to the actual rainfall in the area, and parameter design, debugging and installation are required, which is not convenient to use. In addition, a small pump or other power device needs to be installed inside, and a throttle valve and a sensor need to be installed. Therefore, this overall device must have a processor, so that the sewage can be identified and diverted through the sensor, and an external power supply is required. Some old community pipelines cannot be connected to the combined riser 1, and it is difficult to achieve wiring installation, resulting in inconvenience in installation and maintenance. The device does not require these deep wells for the transformation of old pipelines. The device is connected from the combined riser 1 to the rainwater pipe 42 or The sewage pipe 31 has only a pipeline, and it is a single pipeline with a very simple structure, which is particularly suitable for the pipeline renovation of old communities; 2. The setting of overflow wells and interception wells requires a larger deep well to cooperate with the use, and there are also multiple different pipelines to install. The interception well generally requires rainwater on one side and sewage on the other side, which are diverted through the internal structure of the interception well. It is also necessary to identify the rainfall and water flow. Not only is the identification inaccurate, but it is also difficult to achieve accurate diversion. Digging deep wells in old communities causes inconvenience to normal life, and this kind of interception well is often equipped with a filter and a one-way valve, which requires long-term maintenance. For the sake of life safety, pedestrians are generally not allowed to move normally within the scope of the interception well. This device does not have a deep well excavation. The device as a whole only has pipelines buried. After the construction is completed, the road surface returns to normal. The rainwater and sewage pipes after the transformation of this device have no impact on the original environment of the community and do not affect normal life.
[0042] When the utility model is in use, the combined vertical pipe 1 inside the building balcony is connected through the combined downpipe 11 and the combined diversion pipe 12. The bending angle is convenient for the smooth drainage of water flow, so that the water flow drop is larger and the inclination is steeper, thereby reducing the obstruction to the water flow inside the combined vertical pipe 1. If the combined vertical pipe 1 is vertically connected with a horizontal pipe, the obstruction will be greater. The combined downpipe 11 and the combined diversion pipe 12 of the device do not form too much obstruction to the vertical water flow in the horizontal surface, so it is convenient for drainage.
[0043] The pipeline of this device needs to be high in the front and low in the back of the sloped connecting pipe 2, and the sloped connecting pipe 2 needs to be 100mm-150mm lower than the height of the combined sewer pipe 11 to facilitate water drainage. The pipeline cleaning angle can be slightly tilted, and the rear end is generally tilted downward at an angle of 2-5° to facilitate diversion. A sewage pipe 3 needs to be set, and the sewage pipe 3 needs to continue to be connected with the sloped connecting pipe 2 at the same inclination angle. The sewage pipe 3 and the sloped connecting pipe 2 are on the same plane. Figure 3As shown, the sewage pipe 3 needs to be connected to the side of the sloped connecting pipe 2 on the left or right side, and the sewage pipe 3 has a small diameter, and the optimal diameter of the sewage pipe 3 is one-third of the sloped connecting pipe 2. The sewage pipe 3 is limited, and the flow of domestic sewage is generally small and intermittent, and there will be no sudden increase. Generally, the maximum flow is in the evening, which is the peak period of domestic water use. The rear end of the sewage pipe 3 can be connected to the municipal sewage pipe 31.
[0044] like Figure 2 As shown, the pipelines connected by the slope connection pipe 2, the reverse slope pipe 4 and the choke pipe 41 are in the same vertical plane, and the reverse slope pipe 4 needs to be low in the front and high in the back, and the slope ratio of the choke pipe 41 to the horizontal plane ranges from 0.03 to 0.05, that is, the reverse slope pipe 4 can be arranged at an angle of 10°, forming a reverse slope for the water flow, making it difficult for conventional domestic sewage to flow in.
[0045] A choke tube 41 is connected to the rear end of the reverse slope pipe 4. The angle b of the choke tube 41 can be selected to be 45° to form a steeper slope, so that the choke tube 41 forms a countercurrent water seal on the reverse slope pipe 4, thereby causing domestic sewage to flow toward the lower sewage pipe 3. Moreover, the height position of the rear end of the reverse slope pipe 4 is higher than the highest point of the front end of the sewage pipe 3, and it is difficult for domestic sewage to flow along the reverse slope pipe 4 and the choke tube 41.
[0046] When rain falls and a large water flow is generated, the water flow gathers from the roof to form a torrent. A large amount of accumulated water and torrents will impact the resistance flow-blocking pipe 41 and the reverse slope pipe 4, and impact the water flow into the rainwater pipe 42. When the water flow is too large, the diameter of the sewage pipe 3 is small and it is difficult to divert the large torrent. Therefore, when a large water flow is generated, the device uses gravity drainage to generate a torrent that impacts the water flow into the rainwater pipe 42. However, it is difficult for domestic sewage to generate a continuous large-flow water flow and it is difficult to break through the obstruction of the torrent pipe 41 and the reverse slope pipe 4. Therefore, the sewage will slowly flow into the sewage pipe 31, and a large amount of rainwater will flow into the rainwater pipe 42, thereby completing the separation of rainwater and sewage.
[0047] The device as a whole has only pipeline connections, no diverter, no interception well, simple installation and simple structure.
[0048] For ease of description, the front-to-back direction of the device refers to the direction of water flow, the upstream of the water flow is the front end, and the downstream of the water flow is the rear end.
[0049] In addition, the slope ratio is also called the slope, which is the ratio of the vertical height of the slope to the horizontal width, i.e. the tangent value of the slope angle. In the present embodiment, tana is the slope ratio of the reverse slope pipe 4, and tanb is the slope ratio of the choke pipe 41.
[0050] The inclination slope and proportion data are well known to construction personnel, and both construction and design personnel are familiar with the inclination degree of the pipeline laying.
[0051] Although the specific implementation methods of the present invention are described above, those skilled in the art should understand that the specific embodiments described are only illustrative and are not intended to limit the scope of the present invention. Equivalent modifications and changes made by those skilled in the art in accordance with the spirit of the present invention should be included in the scope of protection of the claims of the present invention.
Claims
1. A rainwater and sewage diversion structure for a mixed flow sewage pipe, characterized in that: include: A combined riser (1), a slope connection pipe (2), a sewage pipe (3), a reverse slope pipe (4) and a flow blocking pipe (41); The combined riser (1) is a vertically arranged pipeline, the upper end of which is connected to a building drainage pipeline; the lower end of the combined riser (1) is connected to a combined sewer pipe (11), the combined sewer pipe (11) is arranged horizontally, and the rear end of the combined sewer pipe (11) is connected to a sloped connecting pipe (2); The sloped connecting pipe (2) is a straight pipe that is laid obliquely with the front higher and the rear lower, and the rear end of the sloped connecting pipe (2) is connected to the sewage pipe (3) and the reverse slope pipe (4) respectively through a tee. The sewage pipe (3) and the sloped connecting pipe (2) are on the same plane, and the rear end of the sewage pipe (3) is connected to a municipal sewage pipe (31); The reverse slope pipe (4) is a straight pipe that is laid with the front lower and the rear higher, and the rear end of the reverse slope pipe (4) is higher than the height of the sewage pipe (31); The rear end of the reverse slope pipe (4) is also connected to a flow-blocking pipe (41), which is also a straight pipe with a lower front and a higher rear. The rear end of the flow-blocking pipe (41) is connected to a municipal rainwater pipe (42); The rear end of the blocking pipe (41) is lower than the height of the combined sewer pipe (11); The pipe diameter of the sewage discharge pipe (3) is smaller than the pipe diameter of the reverse slope pipe (4).
2. The rainwater and sewage diversion structure of a mixed flow sewage pipe according to claim 1 is characterized by: The slope ratio of the choke tube (41) to the horizontal plane is in the range of 0.03 to 0.05; The slope angle b of the reverse slope pipe (4) is in the range of 30°-45°; The height difference h between the rearmost end of the blocking tube (41) and the frontmost end of the reverse slope tube (4) is 30 mm to 50 mm.
3. The rainwater and sewage diversion structure of a mixed flow sewage pipe according to claim 1 is characterized in that: The rear end of the combined sewer pipe (11) is also connected to the combined flow guide pipe (12), and the rear end of the combined flow guide pipe (12) is connected to the front end of the sloped connecting pipe (2). The combined sewer pipe (11), the combined flow guide pipe (12) and the sloped connecting pipe (2) are in the same vertical plane, and the corner sizes at the connection points between the combined sewer pipe (11), the combined flow guide pipe (12) and the sloped connecting pipe (2) are all the same, and the corner size range is between 40° and 60°.
4. The rainwater and sewage diversion structure of a mixed flow sewage pipe according to claim 1 is characterized by: The sewage pipe (3) is laid with a slope higher in the front and lower in the back, and the slope connection pipe (2) and the sewage pipe (3) have the same slope ratio, and the slope ratio of the sewage pipe (3) is in the range of 0.03 to 0.
05.
5. The rainwater and sewage diversion structure of a mixed flow sewage pipe according to claim 1 is characterized in that: The diameter of the reverse slope pipe (4) is 1-2 levels larger than the diameter of the sewage pipe (3), and the diameter of the reverse slope pipe (4) is the same as that of the slope connection pipe (2).