CN222275705U - Rain and sewage diversion structure of mixed-flow sewage pipeline - Google Patents

Abstract

The utility model discloses a rain and sewage diversion structure of a mixed flow sewage pipeline in the technical field of rain and sewage diversion, which comprises a confluence vertical pipe, a slope connecting pipe, a drain pipe, a reverse slope pipe and a blocking pipe which are sequentially connected back and forth, wherein the slope connecting pipe is used for conducting drainage on the vertically arranged confluence vertical pipe, the drain pipe and the reverse slope pipe are used for diversion on the slope connecting pipe, different flow rates are used for conducting differentiated drainage on rain and sewage, the blocking pipe is used for blocking flow on the reverse slope pipe, only a large amount of water flow is allowed to pass through, small flow of sewage cannot enter, the operation of rain and sewage diversion is completed, the rain and sewage diversion device is used for achieving rain and sewage diversion through a simple pipeline, the common water drainage pipeline in the market is utilized, the slope and the height of pipeline transformation are improved, the sewage interception is conducted on the tail end of the balcony confluence pipeline, the downstream water pollution is reduced, the key is that the construction is simple, the occupied area is less, the material is convenient, the cost is low, the maintenance is simple, and the service life is long.

Description

Rain and sewage diversion structure of mixed-flow sewage pipeline

Technical Field

The utility model relates to the technical field of rain and sewage diversion, in particular to a rain and sewage diversion structure of a mixed-flow sewage pipeline.

Background

In order to meet the ecological environment requirements, and also in order to reasonably utilize water resources, sewage and rainwater need to be split, and at present, new buildings have been designed with rainwater and sewage split pipelines.

Some buildings with longer construction years, especially older communities, are not provided and designed with rainwater and sewage diversion pipelines, and now urban sewage collection and treatment facility short plates need to be supplemented, so that full coverage, full collection and full treatment of a sewage pipe network are realized as soon as possible. The diversion transformation of the rainwater and sewage of the drainage pipe network is a key path for realizing the quality improvement and synergy of urban sewage treatment.

Municipal construction is in order to reach full coverage formula rain and sewage reposition of redundant personnel, and old district rain and sewage reposition of redundant personnel transformation work is carried out in succession in the city. The balcony confluence vertical pipe transformation is one of important works of rain and sewage diversion transformation of old communities. At present, an antitheft facility is generally installed on a resident balcony, a balcony converging and standing pipe is arranged in the antitheft facility, domestic water, particularly clothes washing water, needs to be split from rainwater of a top building, then another rainwater pipe needs to be arranged on the balcony to separate the rainwater from the domestic water, a pipeline is used for collecting the rainwater on a roof and directly draining the rainwater to the municipal rainwater pipe, the domestic water is drained to the municipal sewage pipe through an independent pipeline, and centralized treatment is performed on the domestic water collected to a sewage treatment site. The old building converging vertical pipes are arranged in the anti-theft facility, the outer walls of the old buildings are also hung with the air conditioner outer units, and the balcony is closed, so that the difficulty in adding the reconstruction vertical pipes to the balcony is increased due to the adverse factors, the balcony converging vertical pipes of part of the buildings are not provided with the drainage vertical pipes, and rainwater and sewage can not be split according to the mode of separately collecting rainwater and sewage through the conventional double pipelines. Under the condition, the common modification treatment method is to install an intelligent rain and sewage diversion device or a intercepting well between a water outlet of a balcony confluence riser at the outer part of the bottommost layer of the building and a municipal sewage pipeline, so that the pollution to downstream water bodies is reduced to a certain extent.

The intelligent rain and sewage diversion device is high in demand on the installation environment, continuous power supply is generally required to be provided for the intelligent diverter, multiple sensors are additionally required to be installed for identifying sewage, reagent consumables are required to be replaced and maintained for a long time, the intelligent rain and sewage diversion device is high in price, the old community is high in reconstruction cost pressure, a rain pipe is required to be installed for the intelligent rain and sewage diversion device for water quality judgment, occupied space is large, and reconstruction difficulty is further increased. When the method for modifying the intercepting well is adopted, multi-directional multi-pipeline diversion is needed, a deep well is dug to intercept and separate, most old communities are only built in a centralized way, outdoor space and limited space are not enough to install pipelines and diversion pits of the intercepting well, and modification difficulty is high.

Based on the above, the utility model designs a rain and sewage diversion structure of a mixed-flow sewage pipeline to solve the problems.

Disclosure of utility model

The utility model aims to provide a rain and sewage diversion structure of a mixed-flow sewage pipeline, the rain and sewage diversion structure realizes rain and sewage diversion through simple pipeline interception, common drainage pipelines in the market are utilized, the slope and the height of pipeline transformation are improved, sewage interception is carried out on the tail end of a balcony confluence pipeline, the pollution of downstream water is reduced, the most important is that the construction is simple and convenient, the occupied area is small, the material is convenient to obtain, the cost is low, the maintenance is simple, the service life is long, the device solves the problem of rain and sewage mixed-connection transformation of old communities, the device does not occupy too large space, does not need additional high-price intelligent equipment, does not need to excavate an additional intercepting well, does not need to add a water quality judging pipeline and equipment, does not need to provide continuous power supply, and even the device does not need additional equipment maintenance, so that the sewage pipeline transformation of the old communities can be conveniently completed.

The utility model is realized in that the rain and sewage diversion structure of the mixed-flow sewage pipeline comprises:

The device comprises a converging vertical pipe, a slope connecting pipe, a sewage draining pipe, a reverse slope pipe and a choke pipe;

The upper end of the converging vertical pipe is connected with a building drainage pipeline, the lower end of the converging vertical pipe is connected with a converging sewer pipe, the converging sewer pipe is horizontally arranged, and the rear end of the converging sewer pipe is communicated with a slope joint pipe;

the rear end of the slope direction connecting pipe is respectively communicated with the sewage draining pipe and the reverse slope pipe through a tee joint;

the sewage draining pipe and the slope direction connecting pipe are arranged on the same plane, and the rear end of the sewage draining pipe is connected with a municipal sewage pipe;

the back-slope pipe is a straight pipe with a front lower part and a rear higher part, and the rear end of the back-slope pipe is higher than the height position of the sewage pipe;

The rear end of the reverse slope pipe is also connected with a choke pipe which is a straight pipe with a low front and a high rear, and the rear end of the choke pipe is communicated with a municipal rainwater pipe;

The rear end of the choke tube is lower than the height of the converging sewer pipe;

The pipe diameter of the sewage discharge pipe is smaller than that of the reverse slope pipe.

The utility model has the beneficial effects that 1, the common pipeline materials are used for carrying and draining the confluent vertical pipes of old buildings, the water flow speed is not influenced, the hydraulic condition is good, the pipeline flow direction is only changed, other equipment and facilities are not needed, the modification mode is particularly simple, the complex problem is simplified, and the probability of leakage of the diversion pipeline is reduced due to the simple structure, so that the influence on groundwater pollution is small;

2. The intelligent rain and sewage diversion device is not adopted, no additional equipment is needed for installation, and continuous power supply is not needed, so that the device has low engineering cost when in use, can meet the rain and sewage diversion reconstruction work requirement, does not need to be externally provided with a separate rain pipe for detection, is simple to construct and operate, has almost no additional pipeline maintenance cost after reconstruction is finished, and does not need to maintain the rain and sewage diversion device;

3. The intercepting well is not used, the occupied space requirement is small, only the arrangement and the installation of the slope connecting pipe, the sewage draining pipe and the reverse slope pipe are increased, the additional space is hardly occupied, the original environment influence on a community is small, the installation is flexible and convenient, the improvement of the inside of a household balcony is not required, and the problem of rainwater and sewage diversion improvement of the confluence pipeline in the building balcony is solved.

Drawings

The utility model will be further described with reference to examples of embodiments with reference to the accompanying drawings.

FIG. 1 is a schematic diagram of the overall structure of the present utility model;

FIG. 2 is a schematic side view of the overall pipeline according to the present utility model;

FIG. 3 is a schematic top view of the overall piping structure of the present utility model;

FIG. 4 is a schematic view showing the angle layout structure of the reverse slope pipe and the choke pipe of the present utility model

In the drawings, the list of components represented by the various numbers is as follows:

1-confluent vertical pipe, 11-confluent sewer pipe, 12-confluent guide pipe, 2-slope connecting pipe, 3-blow-down pipe, 31-sewage pipe, 4-reverse slope pipe, 41-choke pipe and 42-rainwater pipe.

Detailed Description

Referring to fig. 1 to 4, the present utility model provides a rain and sewage diversion structure of a mixed-flow sewage pipeline, and in order to better understand the above technical solution, the following detailed description of the above technical solution will be given with reference to the accompanying drawings and specific embodiments.

In a specific embodiment of the technical scheme of the utility model:

Comprises a converging vertical pipe 1, a slope joint pipe 2, a sewage drain pipe 3, a reverse slope pipe 4 and a choke pipe 41;

The converging vertical pipe 1 is vertically provided with a pipeline, the upper end of the converging vertical pipe 1 is connected with a building drainage pipeline, the lower end of the converging vertical pipe 1 is connected with a converging sewer pipe 11, the converging sewer pipe 11 is horizontally arranged, the rear end of the converging sewer pipe 11 is communicated with the slope-direction connecting pipe 2, the rear end of the converging sewer pipe 11 is also connected with a converging guide pipe 12, the rear end of the converging guide pipe 12 is connected with the front end of the slope-direction connecting pipe 2, the converging sewer pipe 11, the converging guide pipe 12 and the slope-direction connecting pipe 2 are in the same vertical plane, the corner sizes of the joints among the converging sewer pipe 11, the converging guide pipe 12 and the slope-direction connecting pipe 2 are the same, and the corner size ranges from 40 degrees to 60 degrees.

The slope joint pipe 2 is a straight pipe which is obliquely paved with a high front part and a low rear part, and the rear end of the slope joint pipe 2 is respectively communicated with the sewage discharge pipe 3 and the reverse slope pipe 4 through a tee joint;

The sewage draining pipe 3 and the slope connecting pipe 2 are arranged on the same plane, the plane is an inclined plane with a high front part and a low rear part, the inclined angle is generally about 3 degrees, sewage is conveniently drained, the water flow is smoother, the rear end of the sewage draining pipe 3 is connected with the municipal sewage pipe 31, the sewage draining pipe 3 is laid in a low front-to-high rear inclined mode, the inclined gradient ratio of the slope connecting pipe 2 and the sewage draining pipe 3 is the same, namely the inclined angle is the same, and the inclined gradient ratio of the sewage draining pipe 3 ranges from 0.03 to 0.05. I.e. the rear end is inclined downwards by an angle of about 15-30 deg..

The back-slope pipe 4 is a straight pipe with a front lower part and a rear higher part, and the rear end of the back-slope pipe 4 is higher than the height position of the sewage pipe 31;

The rear end of the reverse slope pipe 4 is also connected with a choke pipe 41, the choke pipe 41 is also a straight pipe with a lower front part and a higher rear part, and the rear end of the choke pipe 41 is communicated with a municipal rainwater pipe 42;

the rear end of the choke tube 41 is lower than the height of the converging downcomer 11;

The gradient ratio of the choke tube 41 to the horizontal plane ranges from 0.03 to 0.05, namely, the included angle a between the choke tube 41 and the horizontal plane is 10 degrees to 15 degrees;

The gradient included angle b of the reverse slope pipe 4 ranges from 30 degrees to 45 degrees, and the water flow of the household cannot be flushed into the choke pipe 41 according to the number of users and the water flow.

The height difference h between the rearmost end of the choke tube 41 and the foremost end of the reverse slope tube 4 is 30mm to 50mm.

The pipe diameter of the blow-down pipe 3 is smaller than that of the reverse slope pipe 4. The pipe diameter of the reverse slope pipe 4 is 1-2 stages larger than that of the sewage pipe 3, and in the sewer pipe, the specifications of the plastic drain pipe are dn32, dn40, dn50, dn63, dn75, dn90, dn110, dn125, dn160 and the like, and the pipe diameter is 1 or 2 stages larger, namely, the pipe diameter is pushed back by one specification or two specifications on the basis of the original pipe diameter. Such grading of the pipe diameter is well known to those skilled in the art, and the pipe diameter of the counter-slope pipe 4 is the same as that of the slope-joining pipe 2.

It should be noted that:

1. the existing intelligent rain and sewage diversion device needs to be installed at the outlet of the lower end of the confluence vertical pipe 1, a deep well is also needed to be excavated and used for installing the diversion device, only the space needed by the diversion device is not large, generally within the range of 1 cubic meter, different rain and sewage diversion devices are selected according to the actual rainfall in the region, the parameter design, debugging and installation are also needed, the use is inconvenient, a small pump or other power devices are generally needed to be installed inside, a throttle valve and a sensor are also needed to be installed, therefore, the whole device must have a processor, so that the identification and drainage of sewage are limited through the sensor, an external power supply is needed, the pipeline of an old community cannot be connected to the confluence vertical pipe 1, the installation of the confluence vertical pipe is difficult to realize, the installation is inconvenient, the maintenance is inconvenient, the device is used for the transformation of the old pipeline, the deep well is not needed, the device is connected to the rain pipe 42 or the facility of the sewage pipe 31, the structure is very simple, and the device is particularly suitable for the transformation of the pipeline of the old community; 2, the setting of overflow well and vatch basin, need bigger deep well to cooperate the use, and also a plurality of different pipelines are installed, the vatch basin generally needs one side rainwater, the opposite side sewage, shunt through vatch basin inner structure, still need discern rainfall and rivers, not only discern inaccurately, moreover be difficult to accomplish accurate reposition of redundant personnel, excavate the deep well in old district, cause inconvenience to normal life, and this kind of vatch basin often has filter screen and check valve, need long-term maintenance, for life safety, lead to generally not allowing the pedestrian to normally move about in the scope of the vatch basin, the device has no deep well excavation, the whole device is buried by only pipelines, the road surface is recovered to be normal after construction is completed, and the rain and sewage pipeline after the device is transformed has no influence on the original environment of a community and does not influence normal life.

When the device is used, the converging vertical pipe 1 in the building balcony is connected through the converging sewer pipe 11 and the converging guide pipe 12, the bending angle is convenient for smooth drainage of water flow, the water flow drop is larger, the inclination angle is more urgent, the resistance of the water flow in the converging vertical pipe 1 is reduced, if the converging vertical pipe 1 is vertically connected through a horizontal pipeline, the resistance is larger, and the converging sewer pipe 11 and the converging guide pipe 12 of the device do not form too large resistance in the horizontal plane to vertical water flow, so that drainage is convenient.

The pipeline of the device needs to be high before and low after the slope-direction connecting pipe 2, the slope-direction connecting pipe 2 needs to be 100 mm-150 mm lower than the height position of the confluence sewer pipe 11, water flow drainage is facilitated, a pipeline cleaning included angle is slightly inclined, the general rear end is inclined downwards by 2-5 degrees, water flow is facilitated, the sewage pipe 3 needs to be arranged, the sewage pipe 3 needs to be continuously connected with the slope-direction connecting pipe 2 at the same inclination angle, the sewage pipe 3 and the slope-direction connecting pipe 2 are on the same plane, as shown in fig. 3, the sewage pipe 3 needs to be continuously connected on the side edge of the slope-direction connecting pipe 2 on the left side or the right side, the pipe diameter of the sewage pipe 3 is small, the pipe diameter of the sewage pipe 3 is optimally one third of the slope-direction connecting pipe 2, the sewage pipe 3 is subjected to flow limiting, the general flow of domestic sewage is small, the intermittent, the general maximum flow is not increased suddenly, and is in the evening, and the peak period of domestic water is at this moment. The rear end of the sewage drain pipe 3 is connected with the municipal sewage pipe 31.

As shown in FIG. 2, the pipelines connected with the slope connecting pipe 2, the reverse slope pipe 4 and the choke pipe 41 are in the same vertical plane, the reverse slope pipe 4 needs to be low at the front and high at the back, the gradient ratio of the choke pipe 41 to the horizontal plane ranges from 0.03 to 0.05, namely, the inclined included angle a of the reverse slope pipe 4 can be selected to be arranged at an angle of 10 degrees, a reverse slope is formed for water flow, so that domestic sewage which is conventionally used is difficult to flow in,

The back end of the reverse slope pipe 4 is connected with the choke pipe 41, the included angle b of the choke pipe 41 can be arranged at an angle of 45 degrees to form steeper slope, so that the choke pipe 41 forms a reverse flow water seal on the reverse slope pipe 4, domestic sewage flows towards the lower sewage discharge pipe 3, the height position of the back end of the reverse slope pipe 4 is higher than the highest position of the front end of the sewage discharge pipe 3, and the domestic sewage is difficult to flow along the reverse slope pipe 4 and the choke pipe 41.

When the rainwater falls to generate larger water flow, the water flow is gathered by the roof to form a torrent, a large amount of accumulated water and the torrent can impact the resistance flow pipe 41 and the reverse slope pipe 4, the water flow is impacted into the rainwater pipe 42, when the water flow is large, the pipe diameter of the sewage pipe 3 is small, and the larger torrent is difficult to guide, so when the larger water flow is generated, the device can impact the water flow into the rainwater pipe 42 because of gravity drainage, domestic sewage is difficult to generate continuous large-flow water flow, the resistance of the resistance flow pipe 41 and the reverse slope pipe 4 is difficult to impact, and therefore, the sewage slowly flows into the sewage pipe 31, and a large amount of rainwater flows into the rainwater pipe 42, so that the diversion of the rainwater and the sewage is completed.

The device is wholly connected by a pipeline, has no flow divider, does not use a intercepting well, and has simple installation and simple structure.

For convenience of description, the front-back direction of the device refers to the direction of water flow, the upstream of water flow is the front end, and the downstream of water flow is the rear end.

In addition, the slope ratio, also called the grade, i.e. the ratio of the vertical height and the horizontal width of the slope, i.e. the tangent of the angle of the slope. In this embodiment, tana is the gradient of the reverse pipe 4, and tanb is the gradient of the choke pipe 41.

The inclination of the pipeline is well known to construction personnel and design personnel, and belongs to inclination slope and proportion data known to construction personnel.

While specific embodiments of the utility model have been described above, it will be appreciated by those skilled in the art that the specific embodiments described are illustrative only and not intended to limit the scope of the utility model, and that equivalent modifications and variations of the utility model in light of the spirit of the utility model will be covered by the claims of the present utility model.

Claims (5)

1. The rain and sewage diversion structure of the mixed-flow sewage pipeline is characterized by comprising a confluence vertical pipe (1), a slope connecting pipe (2), a sewage draining pipe (3), a reverse slope pipe (4) and a choke pipe (41);

The drainage pipe is characterized in that the confluence vertical pipe (1) is vertically provided with a pipeline, the upper end of the confluence vertical pipe (1) is connected with a building drainage pipeline, the lower end of the confluence vertical pipe (1) is connected with a confluence sewer pipe (11), the confluence sewer pipe (11) is horizontally arranged, and the rear end of the confluence sewer pipe (11) is communicated with a slope-direction connecting pipe (2);

the slope joint pipe (2) is a straight pipe which is obliquely paved with a high front part and a low rear part, and the rear end of the slope joint pipe (2) is respectively communicated with the sewage draining pipe (3) and the reverse slope pipe (4) through a tee joint;

The sewage draining pipe (3) and the slope connecting pipe (2) are arranged on the same plane, and the rear end of the sewage draining pipe (3) is connected with a municipal sewage pipe (31);

the back-slope pipe (4) is a straight pipe with a front lower part and a rear higher part, and the rear end of the back-slope pipe (4) is higher than the height position of the sewage pipe (31);

The rear end of the reverse slope pipe (4) is also connected with a choke pipe (41), the choke pipe (41) is also a straight pipe with a lower front part and a higher rear part, and the rear end of the choke pipe (41) is communicated with a municipal rainwater pipe (42);

The rear end of the choke tube (41) is lower than the height of the converging sewer pipe (11);

The pipe diameter of the blow-down pipe (3) is smaller than that of the reverse slope pipe (4).

2. The rain and sewage diversion structure of the mixed-flow sewage pipeline according to claim 1, wherein the gradient ratio of the choke tube (41) to the horizontal plane ranges from 0.03 to 0.05;

the gradient included angle b of the reverse slope pipe (4) ranges from 30 degrees to 45 degrees;

the height difference h between the rearmost end of the choke tube (41) and the foremost end of the reverse slope tube (4) is 30-50 mm.

3. The rain and sewage diversion structure of the mixed-flow sewage pipeline according to claim 1, wherein the rear end of the converging sewer pipe (11) is further connected with a converging flow guide pipe (12), the rear end of the converging flow guide pipe (12) is connected with the front end of the slope-direction connecting pipe (2), the converging sewer pipe (11), the converging flow guide pipe (12) and the slope-direction connecting pipe (2) are in the same vertical plane, and the corners of the joints among the converging sewer pipe (11), the converging flow guide pipe (12) and the slope-direction connecting pipe (2) are the same in size, and the range of the sizes of the corners is 40-60 degrees.

4. The rain and sewage diversion structure of the mixed-flow sewage pipeline according to claim 1, wherein the front part and the rear part of the sewage pipe (3) are paved in a low-inclination mode, the inclination gradient ratio of the slope connecting pipe (2) to the sewage pipe (3) is the same, and the inclination gradient ratio of the sewage pipe (3) ranges from 0.03 to 0.05.

5. The rain and sewage diversion structure of the mixed-flow sewage pipeline according to claim 1, wherein the pipe diameter of the reverse slope pipe (4) is 1-2 stages larger than that of the sewage pipe (3), and the pipe diameter of the reverse slope pipe (4) is the same as that of the slope connecting pipe (2).