CN213233171U

CN213233171U - Sewage intercepting device and drainage system

Info

Publication number: CN213233171U
Application number: CN202021959189.4U
Authority: CN
Inventors: 周超; 李习洪; 杨凯
Original assignee: Wuhan Shengyu Drainage Systems Co Ltd
Current assignee: Wuhan Shengyu Smart Ecological Environmental Protection Co ltd
Priority date: 2020-04-02
Filing date: 2020-09-09
Publication date: 2021-05-18
Anticipated expiration: 2030-09-09
Also published as: CN112127290A; CN111424568A

Abstract

The utility model relates to a sewage interception device, which is applied to a drainage system, the system comprises a box culvert, a drainage branch pipe connected along the box culvert and a sewage interception pipeline for conveying sewage, and the sewage interception device is characterized in that the sewage interception device comprises a tubular tee joint part and a connecting pipe, the tee joint part is provided with an inlet, a first outlet, a second outlet and a containing space, the inlet is used for communicating the containing space of the drainage branch pipe and the tee joint part, the first outlet is used for communicating the tee joint part and the sewage interception pipeline, the second outlet is used for communicating the tee joint part and the space inside the box culvert, the horizontal height of the first outlet is higher than the pipe top elevation of the sewage interception pipeline, and the horizontal height of the second outlet is higher than the horizontal height of the first outlet; one end of the connecting pipe is connected with the three-way connecting piece, and the other end of the connecting pipe is used for being connected with the sewage intercepting pipeline so as to communicate the accommodating space of the three-way connecting piece with the sewage intercepting pipeline. The application provides a cut dirty device, simple structure, it is convenient to make, and the installation is also more convenient.

Description

Sewage intercepting device and drainage system

Technical Field

The application relates to the technical field of drainage systems, in particular to a sewage intercepting device and a drainage system.

Background

At present, box culverts are widely applied in a drainage system, and usually, water flow is discharged to the box culverts through the drainage branch pipes and then is discharged to a sewage treatment plant or a natural water body through the box culverts. In order to avoid pollution to natural water and improve sewage treatment efficiency, it is necessary to convey clear-day sewage or initial rain to a sewage treatment plant via a box culvert for treatment and then discharge the sewage, and later stage rain is directly discharged to natural water via the box culvert.

Among the prior art, can construct an intelligent reposition of redundant personnel well at the row's of mouth end of box culvert and cut dirty usually, carry the sewage in the box culvert to sewage treatment plant when fine day or early rain, discharge the rainwater in the box culvert to natural water in the later stage of raining.

Because the size of box culvert is general great, the catchment area that corresponds the upper reaches is general also very big, and the rain characteristic is not obvious just in the box culvert, and sewage or rain just and a large amount of later stage rainwater or groundwater mix in the box culvert, carry sewage treatment plant again and handle for sewage treatment plant's work load is great, when carrying out sewage treatment, also can handle a large amount of this later stage rainwater that can directly discharge natural water, causes certain wasting of resources.

SUMMERY OF THE UTILITY MODEL

The embodiment of the application provides a cut dirty device, on the one hand, it is when the box culvert is used, can solve the mixed problem of rainwater and sewage in the box culvert, has not only reduced sewage treatment plant's work load, can not pollute natural water moreover, and on the other hand, simple structure makes conveniently, and it is also more convenient to install.

The first aspect provides a cut dirty device, is applied to drainage system, and this system includes the drainage branch pipe that box culvert, box culvert insert along the line and carry dirty pipeline of cutting of sewage, and its characterized in that should cut dirty device and include:

the sewage treatment device comprises a tubular three-way connecting piece and a box culvert, wherein the tubular three-way connecting piece is provided with an inlet, a first outlet, a second outlet and an accommodating space, the inlet is used for communicating a drainage branch pipe with the accommodating space of the three-way connecting piece, the first outlet is used for communicating the three-way connecting piece with the sewage interception pipeline, the second outlet is used for communicating the three-way connecting piece with the space inside the box culvert, the level of the first outlet is higher than the pipe top level of the sewage interception pipeline, and the level of the second outlet is higher than the level of the first outlet;

and one end of the connecting pipe is connected with the three-way connecting piece, and the other end of the connecting pipe is used for being connected with the sewage intercepting pipeline so as to communicate the accommodating space of the three-way connecting piece with the sewage intercepting pipeline.

In some embodiments, the connector further comprises a connecting plate, and the three-way connector and the connecting pipe are connected through the connecting plate.

In some embodiments, the connecting plate is flanged to a tee connector.

In some embodiments, a dirt intercepting opening is formed in the connecting plate, the connecting pipe is welded to the connecting plate, and the connecting pipe is communicated with the three-way connecting piece through the dirt intercepting opening.

In some embodiments, the tee connection is flanged to the connector pipe.

In some embodiments, a switch for controlling the connection or disconnection of the connection pipe is disposed on the connection pipe.

In some embodiments, the switch member is a flexible dirt intercepting device.

In some embodiments, an installation well is correspondingly arranged at the position of the connecting pipe, and the installation well is arranged on the sewage intercepting pipeline.

In some embodiments, the three-way connection member is a three-way straight pipe, the inlet is horizontally arranged, the first outlet and the second outlet are located on the same straight line, the first outlet faces downward vertically, and the second outlet faces upward vertically.

In some embodiments, the device further comprises an ear plate, wherein the ear plate is arranged at the inlet position of the three-way connecting piece and is used for anchoring the three-way connecting piece on the inner wall of the box culvert through bolts.

The embodiment of the application provides a cut dirty device, on the one hand, when it was used on the box culvert, entry intercommunication drainage branch pipe and cut dirty body, first export intercommunication cut dirty body with cut dirty pipeline, the inside space of dirty body and box culvert is cut to the second export intercommunication, thereby will the clean water that drainage branch pipe flows dams extremely box culvert, sewage dam extremely cut dirty pipeline can solve the problem that rainwater and sewage mix in the box culvert, has not only reduced sewage treatment plant's work load, can not pollute the natural water moreover, and on the other hand adopts tee bend connecting piece to carry out the mode of connecting, simple structure, and it is convenient to make, and the installation is also more convenient.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.

FIG. 1 is a schematic view of a sewage interception device provided by an embodiment of the present application along a transverse direction of a box culvert;

FIG. 2 is a schematic view of the sewage interception device provided by the embodiment of the application along the longitudinal direction of a box culvert;

FIG. 3 is a first schematic structural diagram of a drainage system according to an embodiment of the present disclosure;

fig. 4 is a second schematic structural diagram of a drainage system provided in the embodiment of the present application;

fig. 5 is a schematic structural diagram three of a drainage system provided in the embodiment of the present application;

fig. 6 is a schematic structural diagram of a drainage system according to an embodiment of the present application.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some embodiments of the present application, but not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

Example 1

Referring to fig. 1 and 2, in the embodiment of the present application, a sewage interception apparatus is provided, which is applied to a drainage system, and the drainage system includes a box culvert 1, a drainage branch pipe 3 connected along the box culvert 1, and a sewage interception pipeline 2 for conveying sewage.

The sewage interception device comprises a tubular three-way connecting piece 4 and a connecting pipe 5, wherein the three-way connecting piece 4 is provided with an inlet, a first outlet, a second outlet and an accommodating space, the inlet is used for communicating the accommodating space of a drainage branch pipe 3 and the three-way connecting piece 4, the first outlet is used for communicating the three-way connecting piece 4 and a sewage interception pipeline 2, the second outlet is used for communicating the three-way connecting piece 4 and the space inside a box culvert 1, the horizontal height of the first outlet is higher than the pipe top elevation of the sewage interception pipeline 2, and the horizontal height of the second outlet is higher than the horizontal height of the first outlet; one end of the connecting pipe 5 is connected with the three-way connecting piece 4, and the other end of the connecting pipe is used for being connected with the sewage intercepting pipeline 2 so as to communicate the accommodating space of the three-way connecting piece 4 with the sewage intercepting pipeline 2.

On the one hand, the device of cutting dirty of this application embodiment, when it was used on the box culvert, entry intercommunication drainage branch pipe with cut dirty body, first export intercommunication cut dirty body with cut dirty pipeline, the inside space of dirty body and box culvert is cut to the second export intercommunication, thereby will drainage branch pipe outflow's clean water dams extremely box culvert, sewage dams extremely cut dirty pipeline, can solve the problem that rainwater and sewage mix in the box culvert, not only reduced sewage treatment plant's work load, can not pollute natural water moreover.

On the other hand, the mode that the tee joint connecting piece 4 is connected is adopted, and the tee joint connecting piece 4 is simple in structure, convenient to manufacture and more convenient to install.

Further, in the embodiment of the present application, the sewage intercepting apparatus further includes a connecting plate 8, and the three-way connecting member 4 and the connecting pipe 5 are connected by the connecting plate 8.

Specifically, the connecting plate 8 is flange-connected with the three-way connecting piece 4. A sewage intercepting port is formed in the connecting plate 8, the connecting pipe 5 is welded to the connecting plate 8, and the connecting pipe 5 is communicated with the three-way connecting piece 4 through the sewage intercepting port.

In this application embodiment, the pipe diameter of tee junction spare 4 is greater than the pipe diameter of connecting pipe 5, connects through connecting plate 8, can realize the tee junction spare 4 of different pipe diameters and the connection between connecting pipe 5, and it is comparatively convenient to connect moreover, and the equipment is more swift with the dismantlement.

In practical application, when the pipe diameter of the three-way connecting piece 4 is the same as that of the connecting pipe 5, the pipe diameter can also be directly connected by flanges.

Furthermore, in the embodiment of the present application, a switch element 6 is disposed on the connection pipe 5 for controlling the connection or disconnection of the connection pipe 5.

Preferably, in the present embodiment, the switching member 6 is a flexible cut-off device, both ends of which are flanged with the connection pipe 5. The flexible stop of the present application may be an adjustable flexible stop as shown in application No. 201910533236.4, or other similar forms. In practical applications, a gate, a valve, a pipe clamp valve, or the like may be used according to practical situations, and the connection pipe 5 may be controlled to be opened or closed.

Furthermore, in the embodiment of the present application, an installation well 7 is correspondingly disposed at the position of the connecting pipe 5, and the installation well 7 is disposed on the sewage intercepting pipeline 2.

Preferably, in this application embodiment, three way connection 4 is the tee bend straight tube, the entry level sets up, first export and second export are located same straight line, just first export is vertical down, the second export is vertical up, the second export is the overflow mouth.

In this application embodiment, select the pipe fitting to connect, simple structure, simple to operate adopts the mode of overflow to carry out the drainage moreover, and the structure is simpler, construction convenience.

Further, in the present application, the sewage intercepting apparatus further comprises an ear plate installed at the inlet position of the three-way connecting member 4 for bolting the three-way connecting member 4 to the inner wall of the culvert 1.

In this application, set up an otic placode in three way connection 4's entry position, when the installation, three way connection 4 can be through this otic placode bolt anchor on the inner wall of box culvert 1, and it is all more convenient to assemble and dismantle, provides convenience for construction and maintenance.

Example 2

Referring to fig. 1 and 2, in the embodiment of the present application, an application of a sewage interception apparatus, that is, a drainage system for a box culvert is provided.

The drainage system for the box culvert comprises the box culvert 1 and a sewage interception device, wherein a space for water flow circulation is formed in the box culvert 1, and a plurality of drainage branch pipes 3 are arranged along the box culvert 1; cut dirty device and locate in the box culvert 1, drainage branch pipe 3 passes through tee bend connecting piece 4 respectively with cut dirty pipeline 2 and box culvert 1 inside and be linked together, tee bend connecting piece 4 be used for with the clean water that drainage branch pipe 3 flows dams extremely box culvert 1, sewage dams extremely cut dirty pipeline 2.

The working principle of the drainage system for the box culvert is as follows: in practical application, the outlet of the box culvert 1 is connected with a natural water body, the tail end of the sewage intercepting pipeline 2 is connected with a sewage treatment plant, when the rain is in the fine day or the early stage of rainfall, the water discharged by the drainage branch pipe 3 is sewage which is relatively less, the sewage is discharged into the sewage intercepting pipeline 2 through the sewage intercepting device and is discharged to the sewage treatment plant through the sewage intercepting pipeline 2, when the rain is in the later stage, the water discharged by the drainage branch pipe 3 is clean water, and because the water volume is very large, the later stage rainwater mainly overflows into the box culvert 1 through the sewage intercepting device and is discharged into the natural water body through the outlet of the box culvert 1.

The utility model provides a drainage system for box culvert passes through tee junction spare 4 and realizes the reposition of redundant personnel, directly discharges sewage by cutting dirty pipeline 2, discharges the later stage rainwater via box culvert 1 to natural water to with later stage rainwater and sewage separation, solved the problem that later stage rainwater and sewage mix, not only reduced sewage treatment plant's work load, can not pollute natural water moreover.

When using and cutting dirty device, drainage system includes and cuts dirty device with 3 the same of drainage branch pipe quantity, and the delivery port position of every drainage branch pipe 3 all sets up one and cuts dirty device, and every drainage branch pipe 3 all communicates one and cuts dirty device, and every first export of cutting dirty device is linked together through connecting pipe 5 and cutting dirty pipeline 2, and the position department of every connecting pipe 5 all corresponds and sets up an installing well 7, and installing well 7 is located and is cut on dirty pipeline 2.

In this application embodiment, every drain branch 3 all sets up one and cuts dirty device, can be so that every drain branch 3 has an solitary rivers passageway, can discharge the sewage in drain branch 3 to cutting dirty pipeline 2 better to in overflowing the clean water among drain branch 3 to the box culvert 1, and then make sewage and clean water separation more thorough.

It should be noted that the box culvert 1 referred to in the present application may also be a pipe culvert, a confluent pipe, or other equipment having a water storage and delivery function similar to the box culvert 1, and the present application will not be limited to the box culvert 1 shown herein, and the similar structures are all within the protection scope of the present application.

It should be noted that, in order to describe the following embodiments 3-7 in more detail so as to enable those skilled in the art to understand the present invention more clearly and clearly, and further support the technical problem to be solved by embodiment 3 and the technical effect that can be achieved correspondingly, before describing embodiment 3, the following explanation is made for the terms and terms related thereto:

a confluence (branch) pipe which is a pipe for transporting rainwater, sewage, or mixed water of rainwater and sewage in the unit area pipe; a sewage branch pipe which is a pipe for transporting sewage in the unit area pipe; the municipal rainwater pipe is a pipeline used for conveying rainwater in a municipal pipeline; municipal sewage pipes are pipes used for conveying sewage in municipal pipelines. It will be understood by those skilled in the art that the terms "storm water", "sewage", and "mixed water" are not intended to limit the "branch pipe" function, nor are the terms "municipal storm water", "municipal sewage", and "pipe" function, but are merely used for distinguishing purposes. In other words, municipal administration conflux pipe 34, sewage branch pipe, municipal administration downspout, municipal administration sewage pipe all can use same kind of pipeline, perhaps different kind of pipeline, perhaps the same, the pipeline that partly is different, this the utility model discloses do not do the injecing, as long as can realize the pipeline that liquid was carried, all be applicable to the utility model discloses, also all be within the protection scope. As for the dirty water and the clean water referred to in this embodiment 3, the dirty water may be domestic sewage, or primary rain, or mixed water of domestic sewage and primary rain; "clean water" is understood to mean late-stage rainwater. Specifically, for the rainfall period, the rain water can be divided into the first rain and the middle and later rain, and the division manner can adopt a time-length method, a water quality method or a liquid level method in the prior art, for example, when the time-length method is adopted, the corresponding rain water is the first rain at the early stage of the rainfall, and the corresponding rain water is the middle and later rain at the middle and later stages of the rainfall; if a water quality method is adopted, when the concentration of the rainwater is higher than a certain concentration threshold value, the rainwater is the initial rainwater, and when the concentration of the rainwater is lower than a certain concentration threshold value, the rainwater is the middle and later stage rainwater; if the liquid level method is adopted, the rainwater is the initial rainwater when the liquid level of the rainwater is lower than a certain liquid level threshold, and the rainwater is the middle and later stage rainwater when the liquid level of the rainwater is higher than a certain liquid level threshold.

The method for determining the specific mode of the initial rain or the middle and later rain is not limited, and the determination can be selected according to the actual operation requirement; in other words, any of the above-mentioned manners of determining the initial rain or the middle and later rain is applicable to the present invention.

Of course, those skilled in the art should understand that, because there is a certain error also allowed in the discharging process of rainwater and/or sewage in the actual operation process, there may be a certain error in the specific division of each period, for example, there is a division node that is not strict in the middle of the first rain and the middle and later rain, and the middle and later rain is mixed with the middle and later rain, or the first rain/middle and later rain is mixed with a small amount of sewage, etc., so that there is an error in the division of "clean water" and "dirty water", and the operation influence caused by this error is negligible and should not be considered as being out of the protection range of the present invention because it does not affect the implementation effect of the whole technical solution of the present invention.

The existing confluence pipe-making network system is provided with a sewage branch pipe 10, a rainwater port 11 and a municipal confluence pipe 34 which are positioned in a unit area, water in the unit area flows out and enters a drainage branch pipe 3, the sewage branch pipe 10 and the rainwater port 11 in the unit area are respectively connected to the line of the municipal confluence pipe 34, and the sewage branch pipe 10 and the rainwater port 11 are connected in parallel to the line of the municipal confluence pipe 34; the unit areas in the embodiment are areas where domestic sewage is generated, such as residential areas, hospitals and office buildings.

Example 3

Referring to fig. 3-4, the present embodiment provides a drainage system based on a town road combined pipe network, which includes:

the cut-off part 20 is arranged close to the access part of the sewage branch pipe 10 accessed to the municipal confluence pipe 34 or the upstream of the access part, the cut-off part 20 is provided with an inlet and an outlet A, the inlet is communicated with the sewage branch pipe 10, the outlet A is communicated with the municipal confluence pipe 34, and a first water switch is arranged to control the water passing of the outlet A; the intercepting part 20 in this embodiment may be a well structure such as a gate well, an installation well, a diversion well, or an intercepting well, the multiple sewage branch pipes 10 in each unit region may be collected into one pipeline to be connected with the municipal confluence pipe 34, the intercepting part 20 may be disposed on the pipeline connected with the municipal confluence pipe 34, the multiple sewage branch pipes 10 may be respectively connected with the municipal confluence pipe 34, the intercepting part 20 may be disposed on each sewage branch pipe 10 or the part connected with the municipal confluence pipe 34, specifically, the sewage branch pipes may be reconstructed according to the actual conditions of the pipelines in the existing unit regions, and the positions and the number of the intercepting parts 20 are arranged;

in the sewage interception apparatus 30 according to the

embodiment

1 or 2, an inlet of the sewage interception apparatus 30 is connected to a municipal confluence pipe 34, a plurality of municipal confluence pipes 34 are connected to a line of the drain branch pipe 3, a first outlet of the sewage interception apparatus 30 is connected to the sewage treatment facility 12, a second outlet of the sewage interception apparatus 30 is connected to a downstream pipeline (the municipal confluence pipe 34) or a natural water body, the sewage interception apparatus 30 is located downstream of the sewage branch pipe 10, the rainwater port 11 and the municipal confluence pipe 34, and the sewage interception apparatus 30 is used for shunting dirty water to the sewage treatment facility 12 and shunting clean water to the downstream pipeline or the natural water body. The structure of the dirt intercepting device 30 in this embodiment 3 is completely the same as that of the dirt intercepting device 30 described in any of the

above embodiments

1 or 2, and for this reason, details are not described, and reference may be made to

embodiment

1 or 2 for the structure part of the dirt intercepting device 30 in this embodiment 3.

Example 4

The existing confluence pipe-making network system is provided with a sewage branch pipe 10, a rainwater port 11, a sewage containing facility (such as a septic tank) and a municipal flow-merging pipe 34 which are positioned in a unit area, wherein the septic tank outlet and the rainwater port 11 in the unit area are respectively connected to the line of the municipal flow-merging pipe 34, and the septic tank and the rainwater port 11 are connected in parallel to the line of the municipal flow-merging pipe 34; the unit areas in this embodiment are areas such as a community, a hospital, an office building, and the like.

The present embodiment 4 differs from embodiment 3 in that:

the cut-off part 20 in the embodiment 4 is arranged between the sewage branch pipe 10 and the municipal flow-joining pipe 34 or the connecting part of the sewage branch pipe and the municipal flow-joining pipe 34;

the cut-off portion 20 in embodiment 3 is provided between the outlet of the septic tank and the confluence or at the connection point of the outlet of the septic tank and the municipal confluence pipe 34. The specific cut-off part 20 is arranged at a position determined by the specific environment of the unit area, and the facility can be freely and flexibly arranged.

Example 5

On the basis of the embodiment 3 and the embodiment 4, the arrangement mode of the sewage branch pipe, the cut-off part and the sewage containing facility is as follows:

in the first mode, the number of the sewage branch pipes is 1, the number of the cut-off parts 20 is 1, 1 sewage accommodating facility is arranged between 1

sewage branch pipe

10 and 1 cut-off part 20, and an inlet of 1 cut-off part 20 is connected with an outlet of 1 sewage accommodating facility;

in a second mode, the number of the sewage branch pipes 10 is several, the number of the cut-off parts 20 and the number of the sewage containing facilities are both adapted to the number of the sewage branch pipes 10, a corresponding sewage containing facility is arranged between each sewage branch pipe 10 and a corresponding cut-off part 20, and an inlet of each cut-off part 20 is connected with an outlet of a corresponding sewage containing facility;

in a third mode, the number of the sewage branch pipes 10 is a plurality, the number of the interception portions 20 is matched with the number of the sewage containing facilities, the number of the interception portions 20 or the number of the sewage containing facilities is smaller than the number of the sewage branch pipes 10, one part of the sewage branch pipes 10 in the plurality of sewage branch pipes 10 is communicated with the corresponding interception portion 20 through one sewage containing facility, and each other part of the sewage branch pipes 10 in the rest part of the sewage branch pipes 10 is communicated with the corresponding interception portion 20 through the corresponding sewage containing facility.

In a fourth mode, the number of the sewage branch pipes 10 is a plurality, the number of the cut-off portions 20 and the number of the sewage containing facilities are 1, and the plurality of the sewage branch pipes 10 are communicated with a corresponding one of the cut-off portions 20 through one of the sewage containing facilities.

Those skilled in the art can understand that the arrangement mode of the cut-off part, the sewage branch pipe and the sewage containing facility is specifically determined by which of the above embodiments, and can be selected according to the actual operation requirement; in other words, the utility model discloses accept the mode of arranging of facility and do not specifically limit to damming portion, sewage branch pipe and sewage, above-mentioned four kinds of embodiments to and similar embodiment among the prior art, as long as can realize by the sewage of getting rid of in the unit area, at first collect sewage behind the sewage branch pipe and accept the facility, accept the facility by sewage and discharge to the technological effect of damming portion again, all be applicable to the utility model discloses, also all be in the protection scope of the utility model and so on.

In addition, the number and the position of the intercepting parts 20 provided in the present embodiment are not particularly limited as long as sewage interception can be achieved.

Further, in the

present embodiment

3 or 4 or 5, regarding the cut-off portion, there may be a plurality of (2 or more), that is, when there are a plurality of unit areas, the drainage system may include:

1 municipal confluence pipe 34, which is respectively connected with a plurality of sewage branch pipes 10 and a rainwater port 11 in the plurality of unit areas along the line; with a plurality of cut-off portion 20 of regional quantity looks adaptation of unit, each cut-off portion 20 is corresponding to one the sewage branch pipe is connected to set up in being close to this sewage branch pipe 10 and insert the access position or the upper reaches of access position of municipal conjuncted flow pipe 34, each cut-off portion 20 has import and A export, the import intercommunication corresponds sewage branch pipe 10, the A export is through first water conservancy switch intercommunication municipal conjuncted flow pipe 34, first water conservancy switch control the water of A export. A sewage containing facility is arranged between each sewage branch pipe 10 and the corresponding cut-off part 20, and an inlet of the cut-off part 20 is connected with an outlet of the sewage containing facility.

Similarly, the system also comprises a control system, wherein the control system comprises a first monitoring device and a controller, and the first monitoring device is in signal connection with the controller; the controller is used for controlling the action of the water conservancy switch of the outlet A according to a rainfall signal; when a clear day signal is monitored, the outlet A of one or more cut-off parts 20 is controlled to be opened, and dirty water flows into the municipal confluence pipe 34 through the outlet A; when a rainy day signal is detected, the outlet A of the control cut-off part 20 is closed, and the water flowing into the rainwater inlet 11 is gathered to the municipal confluence pipe 34.

Therefore, by constructing the drainage system of the pipe network structure aiming at a plurality of unit areas, pipe networks in the plurality of unit areas are communicated, rain and sewage distribution in the plurality of unit areas is synchronously realized, and the method has the characteristics of low cost and wide applicability.

Example 6

On the basis of embodiment 3 to 5, the drainage system of this embodiment 3 to 5 still includes controller and first monitoring devices, and first monitoring devices and controller signal connection, first monitoring devices are used for monitoring the rainfall signal, and the controller is used for according to the action of the water conservancy switch of rainfall signal control A export. Specifically, when a clear day signal is monitored, the first water conservancy switch is turned on, the outlet A is conducted, and sewage in the unit area enters the sewage treatment facility 12 through the sewage branch pipe 10, the municipal confluence pipe 34 and the first outlet of the sewage interception device 30; in rainy days, the first water conservancy switch is closed, the outlet A is cut off, rainwater flowing in from the rainwater port 11 in the unit area is converged into the municipal flow-merging pipe 34 and enters the downstream drainage branch pipe 3 or the natural water body through the second outlet of the sewage interception device 30. In this embodiment, whether the weather is sunny or rainy is determined by using the monitoring signal of the first monitoring device, taking the first monitoring device as an example of rainfall, setting a rainfall threshold value for the rainfall in the area of the rainfall monitoring unit, and determining that the monitored rainfall is higher than the rainfall threshold value is rainy and irregular is sunny. The first water conservancy switch, the second water conservancy switch and the fourth water conservancy switch are turned on or off in the embodiment, which means states of the first water conservancy switch, the second water conservancy switch and the fourth water conservancy switch in rainy days or sunny days.

Preferably, the first monitoring device is at least one of a device for monitoring the liquid level of the water body, a device for monitoring the water quality of the water body, a device for monitoring the rainfall and a device for monitoring the total amount of the water body, and the rainfall signal is at least one of a water level signal, a water quality signal, a rainfall signal and a total amount of the water body.

Further preferably, the control system further comprises a third monitoring device, the third monitoring device is used for monitoring the capacity signal of the sewage treatment facility 12, and the controller is used for controlling the action of the water conservancy switch at the outlet A according to the rainfall signal and the capacity signal. The third monitoring device in this embodiment is a liquid level meter disposed in the sewage treatment facility 12, and determines whether the sewage treatment facility 12 has capacity by monitoring the liquid level height in the sewage treatment facility 12. The control logic is as follows: when the sewage treatment facility 12 has capacity in rainy days and runoff pollution needs to be considered in the unit area, in rainy days, the first water conservancy switch is closed in the initial rainwater stage, the outlet A is cut off, initial rainwater converged by the rainwater openings 11 in the unit area flows into the municipal flow-merging pipe 34 and enters the sewage treatment facility 12 through the first outlet of the sewage interception device 30; in the middle and later stage rainwater stage, the first water conservancy switch is closed, the outlet A is cut off, and the rainwater in the middle and later stages flowing into the rainwater port 11 in the unit area flows into the municipal flow combining pipe 34 and passes through the drainage branch pipe 3 or the natural water body at the downstream of the second outlet of the sewage interception device 30. In this embodiment, the initial rainwater refers to dirty rainwater, and the middle-late rainwater refers to cleaner rainwater, and is not specific to the time sequence of rainfall. In this embodiment, the capacity monitoring of the wastewater treatment facility 12 in the present method is performed using the capacity signal of the third monitoring device.

Further preferably, the control system further comprises a fourth monitoring device, the fourth monitoring device is used for monitoring rainfall intensity signals, and the controller is used for controlling the action of the water conservancy switch at the outlet A according to the rainfall signals and the rainfall intensity signals. The specific control logic is as follows: when the rainfall intensity is low, the first water conservancy switch is turned on, the sewage of the sewage branch pipe and the rainwater gathered by the rainwater inlet are mixed in the municipal flow merging pipe 34, and then the sewage is intercepted to a sewage treatment facility through a first outlet of the sewage intercepting device; when the rainfall intensity is higher, the first water conservancy switch is closed, and the rainwater enters a pipeline or a natural water body at the downstream of the shunting facility through the municipal confluence pipe 34, the municipal confluence pipe 34 and the D outlet of the shunting facility. The fourth monitoring device in this embodiment is the same device as the first monitoring device, and the rainfall intensity signal is converted from the signal monitored by the first monitoring device, and if the first monitoring device is a rainfall meter, the rainfall intensity can be converted from the rainfall monitored by a rainfall meter, and the fourth monitoring device can also be an independent device, specifically set according to the actual use requirement. The rainfall intensity is larger than the set rainfall intensity threshold, and the rainfall intensity is smaller than the set rainfall intensity threshold, so the rainfall intensity is determined according to the set rainfall intensity threshold, and the setting of the rainfall intensity threshold, the perennial rainfall environment in which the unit area is located, and the capacity of the sewage pipe are determined, which is not specifically limited in this embodiment.

The long condition if exceed 12 hours is suitable for in the rainfall, close first water conservancy switch sewage branch pipe 10 for a long time and cut off, sewage branch pipe 10 pressure is great, for further solving the great problem of sewage branch pipe 10 pressure, can select to be less at rainfall intensity, and sewage treatment facility 12 has the condition of holding capacity, open first water conservancy switch, the A export switches on, flows into municipal flow joining pipe 34 with the partial sewage in sewage branch pipe 10, and inlet gully 11 flows into a small amount of rainwater and sewage and mixes the back and gets into municipal flow joining pipe 34 through first export and flow into sewage treatment facility 12. The mode relieves the pressure of the sewage branch pipe 10, and can fully utilize the resources of the sewage treatment facility 12 and reasonably utilize the resources.

Example 7

After the cut-off portion is closed to the sewage branch pipe and the municipal flow merging pipe 34, the sewage in the rainy day is contained depending on the volume of the sewage branch pipe itself or the volume of the septic tank, and there may be a problem that the sewage holding amount is insufficient and the sewage is submerged in the unit area, so that on the basis of embodiments 3 to 6, there is provided a drainage system based on the municipal road flow merging pipe network as a preferable embodiment further comprising: and a buffer 40. Wherein, the A export of cut-off portion 20 links to each other with municipal confluence pipe 34, and cut-off portion 20 sets up the B export and links to each other with buffering portion 40, and buffering portion 40 is used for the partial domestic sewage that the buffer storage septic tank flows out. Buffering portion 40 is used for saving the partial domestic sewage of rainy day, and the rainwater that the inlet for stom water 11 flows is converged in municipal flow tube 34, has avoided domestic sewage to sneak into the rainwater, shunts the rainwater to low reaches pipeline or natural water through cut-off equipment, when rainy day, keeps domestic sewage in, and municipal flow tube 34 and the pipe 34 of municipal confluence discharge the rainwater as the downspout, postpone domestic sewage's emission, and control mode is simple, and treatment effect is good.

Further preferably, the intercepting part 20 and the buffer part 40 in the above scheme form an integral storage pool, a partition part is arranged in the storage pool to partition the inside of the pool body into the intercepting part 20 and the buffer part 4, the outlet B is positioned on the partition part, and the pool body enclosing the intercepting part 20 is provided with an inlet and an outlet A.

In addition, the storage pool of this embodiment is the pool body structure that is excavated at least part of which is located underground, an overflow wall is arranged in the pool body structure, a buffer corridor enclosed by the front side of the partition wall and the surrounding pool bodies is equivalent to the cut-off part 20, a storage space enclosed by the rear side of the partition wall and the surrounding pool bodies is equivalent to the buffer part 40, wherein an outlet a is arranged on one side wall of the buffer corridor, a water switch is arranged near the outlet a, an outlet B is arranged on the partition wall, if the partition wall is the overflow wall, the overflow port of the overflow wall is the outlet B, as other modes, the outlet B can also be arranged on the partition wall, and a water switch, i.e., a second water switch, is arranged near the outlet B. The specific operation and use mode is as follows: in sunny days, the first water conservancy switch close to the A outlet is opened, the A outlet is communicated, the domestic sewage flowing out of the septic tank flows into the municipal combined flow pipe 34 from the A outlet of the buffer corridor, in rainy days, the first water conservancy switch close to the A outlet is closed, the domestic sewage flowing out of the septic tank overflows into the buffer part 40 from the overflow port above the overflow wall, namely the B outlet, or the B outlet of the second water conservancy switch is opened for communication, the domestic sewage in rainy days is stored in the buffer part 40, and the rainwater flowing out of the rainwater port 11 is converged into the municipal combined flow pipe 34. The control mode is simple, and maneuverability is strong, can realize the distribution of rain and sewage promptly from the source.

In another preferred scheme, the intercepting part 20 and the buffer part 40 in the above scheme are of a split structure, the intercepting part 20 is a diversion well, an intercepting well or a flow abandoning well, the buffer part 40 is a tank body structure or a tank body with a storage space, when the diversion well, the intercepting well or the flow abandoning well adopts a weir structure or a groove weir structure, an outlet a and an outlet B are arranged on the well body of the diversion well, the intercepting well or the flow abandoning well, a water switch, namely a first water switch, can be provided only near the outlet a, the outlet B is located at the downstream of an overflow weir in the well, and a second water switch for controlling the outlet B to pass water is required to be arranged near the outlet B of the diversion well, the intercepting well or the flow abandoning well of other structures. The utility model has the advantages of can be according to the particular case of service environment, in suitable regional facility cut-off portion 20 and buffer portion 4, nimble many convenient, application scope is wide.

In another preferred embodiment, the buffering portion 40 in the above embodiment may be connected to an outlet of a septic tank, or may be connected to outlets of a plurality of septic tanks and/or sewage branch pipes 10. The storage space of the buffer part 40 is designed according to the sewage amount generated by the sewage catchment area corresponding to the septic tank and the sewage branch pipe 10 connected with the buffer part, the design is reasonable, and the resources are distributed and merged.

Example 8

Referring to fig. 5 to 6, the conventional confluence piping network system has a sewage branch pipe 10, a gully 11 and a confluent pipe in a unit area, the water flowing out of the unit area enters a municipal sewage pipe 32 and a municipal gully 33, the sewage branch pipe 10 and the gully 11 in the unit area are respectively connected to the line of the confluent pipe, and the sewage branch pipe 10 and the gully 11 are connected in parallel to the line of the confluent pipe; the unit areas in this embodiment are areas such as a community, a hospital, an office building, and the like.

This embodiment 8 provides a drainage system based on town road reposition of redundant personnel tubulation net, this system includes:

the cut-off part 20 is arranged at the access part of the pipe which is close to the sewage branch pipe 10 and is connected into the confluence or the upstream of the access part, the cut-off part 20 is provided with an inlet and an outlet A, the inlet is communicated with the sewage branch pipe 10, the outlet A is communicated with the pipe of the confluence, and a first water switch is arranged to control the water passing of the outlet A; the intercepting part 20 in this embodiment may be a well structure such as a gate well, an installation well, a diversion well, and an intercepting well, a plurality of sewage branch pipes 10 in each unit region may be collected into one pipe to be connected with a pipe for confluence, the intercepting part 20 may be disposed on the pipe connected with the pipe for confluence, the plurality of sewage branch pipes 10 may be respectively connected with the pipe for confluence, the intercepting part 20 may be disposed on each sewage branch pipe 10 or at a position connected with the pipe for confluence, and the position and the number of the arrangement part 20 may be modified and intercepted specifically according to the actual condition of the pipe in the existing unit region;

the sewage intercepting device 30 is provided with an inlet, a first outlet and a second outlet, the inlet of the sewage intercepting device 30 is connected with a confluence pipe, the first outlet is connected with a municipal sewage pipe 32, the second outlet is connected with a municipal rainwater pipe 33, the sewage intercepting device 30 is positioned at the downstream of the sewage branch pipe 10 and the rainwater port 11, and the sewage intercepting device 30 is used for dividing dirty water into the municipal sewage pipe 32 and dividing clean water into the municipal rainwater pipe 33.

Example 9

The existing confluence piping network system has a sewage branch pipe 10, a rain water inlet 11, a sewage containing facility (such as a septic tank) and a confluence pipe which are positioned in a unit area, the septic tank outlet and the rain water inlet 11 in the unit area are respectively connected to the line of the confluence pipe, and the septic tank and the rain water inlet 11 are connected in parallel to the line of the confluence pipe; the unit areas in this embodiment are areas such as a community, a hospital, an office building, and the like.

The present embodiment 8 differs from embodiment 9 in that:

the cutoff portion 20 in example 8 is provided between the sewage branch pipe 10 and the pipe at confluence or at the connecting portion of the sewage branch pipe and the pipe at confluence;

the cutoff part 20 in embodiment 9 is provided between the outlet of the septic tank and the confluent pipe or at the connecting portion of the outlet of the septic tank and the confluent pipe. The specific cut-off part 20 is arranged at a position determined by the specific environment of the unit area, and the facility can be freely and flexibly arranged.

Example 10

On the basis of the example 8 and the example 9, for the arrangement mode of the sewage branch pipe, the cut-off part and the sewage containing facility:

sewage branch pipe

Further, in the present embodiment 8 or 9 or 10, regarding the cut-off portion, there may be a plurality of (2 or more), that is, when there are a plurality of unit areas, the drainage system may include:

1 municipal confluence pipe 1, which is respectively connected with a plurality of sewage branch pipes 10 and a rainwater port 11 in the plurality of unit areas along the line; with a plurality of cut-off portion 20 of regional quantity looks adaptation of unit, each cut-off portion 20 is corresponding to one the sewage branch pipe is connected to set up and connect near this sewage branch pipe 10 the access position of municipal administration confluence pipe 1 or the upper reaches of access position, each cut-off portion 20 has import and A export, the import intercommunication corresponds sewage branch pipe 10, the A export is through first water conservancy switch intercommunication municipal administration confluence pipe 1, first water conservancy switch control the water of A export. A sewage containing facility is arranged between each sewage branch pipe 10 and the corresponding cut-off part 20, and an inlet of the cut-off part 20 is connected with an outlet of the sewage containing facility.

Similarly, the system also comprises a control system, wherein the control system comprises a first monitoring device and a controller, and the first monitoring device is in signal connection with the controller; the controller is used for controlling the action of the water conservancy switch of the outlet A according to a rainfall signal; when a clear day signal is monitored, the outlet A of one or more cut-off parts 20 is controlled to be opened, and dirty water flows into the municipal confluence pipe 1 through the outlet A; when a rainy day signal is detected, the outlet A of the cut-off part 20 is controlled to be closed, and the water flowing into the rainwater inlet 11 is converged into a confluent pipe.

Example 11

On the basis of embodiment 8 to 10, this system still includes controller and first monitoring devices, and first monitoring devices and controller signal connection, first monitoring devices are used for monitoring the rainfall signal, and the controller is used for according to the rainfall signal control A export the water conservancy switch action.

The first monitoring device is at least one of a device for monitoring the liquid level of the water body, a device for monitoring the water quality of the water body, a device for monitoring the rainfall and a device for monitoring the total amount of the water body correspondingly, and the rainfall signal is at least one of a water level signal, a water quality signal, a rainfall signal and a total amount of the water body signal.

Further preferably, the control system further comprises a third monitoring device, the third monitoring device is used for monitoring the capacity signal of the municipal sewage pipe 32, and the controller is used for controlling the action of the water conservancy switch of the A outlet according to the rainfall signal and the capacity signal. The third monitoring device in this embodiment is a liquid level meter disposed in the municipal sewage pipe 32, and determines whether the municipal sewage pipe 32 has capacity by monitoring the liquid level in the municipal sewage pipe 32.

Further preferably, the control system further comprises a fourth monitoring device, the fourth monitoring device is used for monitoring rainfall intensity signals, and the controller is used for controlling the action of the water conservancy switch at the outlet A according to the rainfall signals and the rainfall intensity signals. The fourth monitoring device in this embodiment is the same device as the first monitoring device, and the rainfall intensity signal is converted from the signal monitored by the first monitoring device, and if the first monitoring device is a rainfall meter, the rainfall intensity can be converted from the rainfall monitored by a rainfall meter, and the fourth monitoring device can also be an independent device, specifically set according to the actual use requirement.

The specific control logic is as follows: in sunny days, the first water conservancy switch is turned on, the outlet A is communicated, and sewage in the unit area enters the municipal sewage pipe 32 through the sewage branch pipe 10, the confluence pipe and the first outlet of the sewage interception device 30;

in rainy days, the first water conservancy switch is closed, the outlet A is cut off, rainwater flowing in the rainwater inlet 11 in the unit area is converged into the confluence pipe and enters the municipal rainwater pipe 33 through the second outlet of the sewage interception device 30. In this embodiment, whether the weather is sunny or rainy is determined by using the monitoring signal of the first monitoring device, taking the first monitoring device as an example of rainfall, setting a rainfall threshold value for the rainfall in the area of the rainfall monitoring unit, and determining that the monitored rainfall is higher than the rainfall threshold value is rainy and irregular is sunny. The first water conservancy switch, the second water conservancy switch and the fourth water conservancy switch are turned on or off in the embodiment, which means states of the first water conservancy switch, the second water conservancy switch and the fourth water conservancy switch in rainy days or sunny days.

Further preferably, when the municipal sewage pipe 32 has capacity in rainy days, runoff pollution needs to be considered in the unit area, and in rainy days, the first water conservancy switch is closed in the initial rainwater stage, the outlet A is cut off, and the initial rainwater converged at the rainwater inlet 11 in the unit area flows into the converging pipe and enters the municipal sewage pipe 32 through the first outlet of the sewage interception device 30; in the middle and later stage rainwater stage, the first water conservancy switch is closed, the outlet A is cut off, and the rainwater in the middle and later stages flowing into the rainwater port 11 in the unit area flows into a confluence pipe and enters the municipal rainwater pipe 33 through the second outlet of the sewage interception device 30. In this embodiment, the initial rainwater refers to dirty rainwater, and the middle-late rainwater refers to cleaner rainwater, and is not specific to the time sequence of rainfall. In this embodiment, the municipal sewer piping 32 capacity monitoring in the method is performed using a capacity signal from the third monitoring device.

The fourth monitoring device in this embodiment is the same device as the first monitoring device, and the rainfall intensity signal is converted from the signal monitored by the first monitoring device, and if the first monitoring device is a rainfall meter, the rainfall intensity can be converted from the rainfall monitored by a rainfall meter, and the fourth monitoring device can also be an independent device, specifically set according to the actual use requirement. The rainfall intensity is larger than the set rainfall intensity threshold, and the rainfall intensity is smaller than the set rainfall intensity threshold, so the rainfall intensity is determined according to the set rainfall intensity threshold, and the setting of the rainfall intensity threshold, the perennial rainfall environment in which the unit area is located, and the capacity of the sewage pipe are determined, which is not specifically limited in this embodiment.

Example 12

On the basis of embodiments 8 to 11, a buffer part 40 is further arranged, an outlet A of the interception part 20 is connected with a pipe for confluence, an outlet B of the interception part 20 is connected with the buffer part 40, and the buffer part 40 is used for buffering part of domestic sewage flowing out of the septic tank. Buffering portion 40 is used for saving the partial domestic sewage of rainy day, and the rainwater that the inlet for stom water 11 flows is converged in the intraductal of confluence, has avoided domestic sewage to sneak into the rainwater, shunts the rainwater to municipal rainwater pipe 33 through cutting dirty device 30, and when the rainy day, postpone domestic sewage's emission, control mode is simple, and treatment effect is good.

Further preferably, the intercepting part 20 and the buffer part 40 in the above scheme are combined into a storage pool with an integral structure, the storage pool is internally provided with a partition part which does not partition the inside of the pool body into the intercepting part 20 and the buffer part 40, the outlet B is positioned on the partition part, and the pool body which encloses the intercepting part 20 is provided with an inlet and an outlet A.

In addition, the storage pool of this embodiment is the pool body structure that is excavated at least part of which is located underground, an overflow wall is arranged in the pool body structure, a buffer corridor enclosed by the front side of the partition wall and the surrounding pool bodies is equivalent to the cut-off part 20, a storage space enclosed by the rear side of the partition wall and the surrounding pool bodies is equivalent to the buffer part 40, wherein an outlet a is arranged on one side wall of the buffer corridor, a water switch is arranged near the outlet a, an outlet B is arranged on the partition wall, if the partition wall is the overflow wall, the overflow port of the overflow wall is the outlet B, as other modes, the outlet B can also be arranged on the partition wall, and a water switch, i.e., a second water switch, is arranged near the outlet B. The specific operation and use mode is as follows: in sunny days, the first water conservancy switch close to the A outlet is opened, the A outlet is communicated, the domestic sewage flowing out of the septic tank flows into the confluence pipe from the A outlet of the buffer corridor, in rainy days, the first water conservancy switch close to the A outlet is closed, the domestic sewage flowing out of the septic tank overflows into the buffer part 4 from the overflow port above the overflow wall, namely the B outlet, or the B outlet of the second water conservancy switch is opened for communication, the domestic sewage in rainy days is stored in the buffer part 4, and the rainwater flowing out of the rainwater port 11 is converged into the confluence pipe. The control mode is simple, and maneuverability is strong, can realize the distribution of rain and sewage promptly from the source.

Further preferably, in the above scheme, the intercepting part 20 and the buffering part 40 are of a split structure, the intercepting part 20 is a diversion well, an intercepting well or a flow abandoning well, the buffering part 40 is a tank body structure or a tank body with a storage space, when the diversion well, the intercepting well or the flow abandoning well adopts a weir structure or a groove weir structure, an outlet a and an outlet B are arranged on the well body of the diversion well, the intercepting well or the flow abandoning well, a facility water switch, i.e. a first water conservancy switch, can be only arranged near the outlet a, the outlet B is located at the downstream of an overflow weir in the well, and a second water conservancy switch for controlling the outlet B to pass water is required to be arranged near the outlet B of the diversion well, the intercepting well or the flow abandoning well of other structures. The utility model has the advantages of can be according to the particular case of service environment, in suitable regional facility cut-off portion 20 and buffer portion 40, nimble many convenient, application scope is wide.

Further preferably, the buffering portion 40 and the cut-off portion 20 in the above-mentioned solution can be connected to an outlet of a septic tank or to outlets of a plurality of septic tanks and sewage branch pipes 10. The storage space of the buffer part 40 is designed according to the sewage amount generated by the sewage catchment area corresponding to the septic tank and the sewage branch pipe 10 connected with the buffer part, the design is reasonable, and the resources are distributed and merged.

In the description of the present application, it should be noted that the terms "upper", "lower", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, which are only for convenience in describing the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and operate, and thus, should not be construed as limiting the present application. Unless expressly stated or limited otherwise, the terms "mounted," "connected," and "connected" are intended to be inclusive and mean, for example, that they may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.

It is noted that, in the present application, relational terms such as "first" and "second", and the like, are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. The term "comprising", without further limitation, means that the element so defined is not excluded from the group consisting of additional identical elements in the process, method, article, or apparatus that comprises the element. The above description is merely exemplary of the present application and is presented to enable those skilled in the art to understand and practice the present application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the application. Thus, the present application is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. The utility model provides a cut dirty device, is applied to drainage system, and this system includes drainage branch pipe (3) that box culvert (1), box culvert (1) insert along the line to and carry dirty pipeline (2) of cutting of sewage, its characterized in that should cut dirty device and include:

the sewage intercepting device comprises a tubular three-way connecting piece (4) and a sewage collecting box, wherein the tubular three-way connecting piece is provided with an inlet, a first outlet, a second outlet and a containing space, the inlet is used for communicating the containing space of a drainage branch pipe (3) and the containing space of the three-way connecting piece (4), the first outlet is used for communicating the three-way connecting piece (4) and the sewage intercepting pipeline (2), the second outlet is used for communicating the three-way connecting piece (4) and the space inside the box culvert (1), the horizontal height of the first outlet is higher than the pipe top elevation of the sewage intercepting pipeline (2), and the horizontal height of the second outlet is higher than the horizontal height of the first outlet;

and one end of the connecting pipe (5) is connected with the three-way connecting piece (4), and the other end of the connecting pipe is used for being connected with the sewage intercepting pipeline (2) so as to communicate the accommodating space of the three-way connecting piece (4) with the sewage intercepting pipeline (2).

2. The soil interception apparatus of claim 1 wherein: the three-way connecting piece is characterized by further comprising a connecting plate (8), and the three-way connecting piece (4) is connected with the connecting pipe (5) through the connecting plate (8).

3. The soil interception apparatus of claim 2 wherein: and the connecting plate (8) is connected with the three-way connecting piece (4) through a flange.

4. The soil interception apparatus of claim 2 wherein: the connecting plate (8) is provided with a sewage intercepting port, the connecting pipe (5) is welded on the connecting plate (8), and the connecting pipe (5) is communicated with the three-way connecting piece (4) through the sewage intercepting port.

5. The soil interception apparatus of claim 1 wherein: and the three-way connecting piece (4) is connected with the connecting pipe (5) through a flange.

6. The soil interception apparatus of claim 1 wherein: and a switch piece (6) for controlling the connection or the disconnection of the connecting pipe (5) is arranged on the connecting pipe (5).

7. The soil interception apparatus of claim 6 wherein: the switch piece (6) is a flexible sewage interception device.

8. The soil interception apparatus of claim 1 wherein: the position department of connecting pipe (5) corresponds sets up an erection well (7), just erection well (7) are located cut dirty pipeline (2) last.

9. The soil interception apparatus of claim 1 wherein: the three-way connecting piece (4) is a three-way straight pipe, the inlet is horizontally arranged, the first outlet and the second outlet are positioned on the same straight line, the first outlet faces downwards vertically, and the second outlet faces upwards vertically.

10. The soil interception apparatus of claim 1 wherein: the three-way connecting piece is characterized by further comprising an ear plate, wherein the ear plate is arranged at the inlet position of the three-way connecting piece (4) and used for anchoring the three-way connecting piece (4) on the inner wall of the box culvert (1) through bolts.

11. A drainage system, comprising:

the municipal confluence pipe (34) is respectively connected with the sewage branch pipe (10) and the rainwater port (11) in the unit area along the line;

the intercepting part (20) is arranged close to an access part of the sewage branch pipe (10) to the municipal confluence pipe (34) or at the upstream of the access part, the intercepting part (20) is provided with an inlet and an A outlet, the inlet is communicated with the sewage branch pipe (10), the A outlet is communicated with the municipal confluence pipe (34), and a first water switch is arranged to control the water passing of the A outlet;

the sewage interception device (30) of any of claims 1 to 10, which is disposed on a municipal flow-joining pipe (34), wherein an inlet of the sewage interception device (30) is connected to the municipal flow-joining pipe (34), a first outlet of the sewage interception device (30) is connected to a sewage treatment facility (12), a second outlet of the sewage interception device is connected to a downstream pipeline or a natural water body, and the sewage interception device (30) is located downstream of the municipal flow-joining pipe (34), the sewage branch pipe (10) and the gutter inlet (11).

12. A drainage system as claimed in claim 11, comprising: a sewage containing facility is arranged between the sewage branch pipe (10) and the cut-off part (20), and an inlet of the cut-off part (20) is connected with an outlet of the sewage containing facility.

13. The drainage system of claim 11 or 12, wherein:

the intercepting part (20) is a diversion well, an intercepting well, a flow abandoning well, a buffer corridor or an installation well.

14. The drainage system of claim 11 or 12, wherein: the control system comprises a first monitoring device and a controller, wherein the first monitoring device is in signal connection with the controller; the controller is used for controlling the action of the water conservancy switch of the outlet A according to a rainfall signal;

when a clear day signal is monitored, an outlet A of the cut-off part (20) is controlled to be opened, and dirty water flows into the municipal confluence pipe (34) through the outlet A; when a rainy day signal is monitored, the outlet A of the cut-off part (20) is controlled to be closed, and water flowing into the rainwater inlet (11) is gathered to the municipal confluence pipe (34).

15. The drainage system of claim 14, wherein: the first monitoring device is at least one of a device for monitoring the liquid level of the water body, a device for monitoring the water quality of the water body, a device for monitoring the rainfall and a device for monitoring the total amount of the water body;

correspondingly, the rainfall signal is at least one of a water body liquid level signal, a water body water quality signal, a rainfall signal and a water body total amount signal.

16. The drainage system of claim 15, wherein: the control system further comprises a third monitoring device for monitoring a capacity signal of the sewage treatment plant (12) and transmitting the capacity signal to the controller.

17. A drainage system is applied to a municipal road shunt pipe network, and the municipal road shunt pipe network comprises a municipal sewage pipe and a municipal rainwater pipe; characterized in that the drainage system comprises:

the sewage interception device (30) of any of claims 1 to 10, said sewage interception device (30) having an inlet, a first outlet and a second outlet, said inlet of said sewage interception device (30) being connected to said municipal flow manifold (34), said first outlet being connected to a municipal sewer pipe (32), said second outlet being connected to said municipal sewer pipe (33), and said sewage interception device (30) being located downstream of said sewer branch (10) and said gully (11).

18. A drainage system as claimed in claim 17, comprising: a sewage containing facility is arranged between the sewage branch pipe (10) and the cut-off part (20), and an inlet of the cut-off part (20) is connected with an outlet of the sewage containing facility.

19. The drainage system of claim 18, wherein:

20. The drainage system of claim 17, wherein: the rainfall monitoring system comprises a first monitoring device and a controller, the first monitoring device is in signal connection with the controller, the first monitoring device is used for monitoring rainfall signals, and the controller is used for controlling the action of a water conservancy switch of the A outlet according to the rainfall signals.

21. The drainage system of claim 20, wherein: the first monitoring device is at least one of a device for monitoring the liquid level of the water body, a device for monitoring the water quality of the water body, a device for monitoring the rainfall and a device for monitoring the total amount of the water body;

22. The drainage system of claim 21, wherein: the control system further comprises a third monitoring device for monitoring a volume signal of the municipal sewer pipe (32).

23. The drainage system of claim 22, wherein: the control system further comprises a fourth monitoring device for monitoring rainfall intensity in the unit area.