CN109098252A

CN109098252A - The pipeline shunt system and shunt method of One In and Two Out

Info

Publication number: CN109098252A
Application number: CN201810988889.7A
Authority: CN
Inventors: 李远科; 孙志先; 史笃山
Original assignee: Wuhan Shengyu Drainage Systems Co Ltd
Current assignee: Wuhan Shengyu Drainage Systems Co Ltd
Priority date: 2018-08-28
Filing date: 2018-08-28
Publication date: 2018-12-28

Abstract

The pipeline shunt system of One In and Two Out structure, comprising: compressed gas source；At least one control valve, import are connected with compressed gas source；The outlet of at least one gas conveying main pipe and control valve；By current divider ontology and at least, a pneumatic control component forms pneumatic current divider, current divider ontology is equipped with import, first outlet and second outlet, first outlet forms channel of shutting off for connection import and sewage pipe or first rain pipe, pneumatic control component, which is set to, to shut off in channel, and second outlet is used for the drainpipe of connection import and current divider ontology downstream；Pneumatic control component and gas conveying main pipe are conveyed by gas and are in charge of connection；Controller is connect with control valve；And measuring instrument, controller is after receiving metrical information, control valve events are controlled according to the metrical information to connect compressed gas source and pneumatic control component, pneumatic control component movement is switched off and on state control channel of shutting off, by drainpipe sewage and/or initial rainwater, later period rainwater shunt.

Description

One-inlet two-outlet pipeline shunting system and method

Technical Field

The invention relates to municipal rainwater and sewage diversion, in particular to a one-inlet two-outlet pipeline diversion system and a diversion method, and belongs to the technical field of civil buildings and municipal water supply and drainage.

Background

At present, in a diversion well, a abandoning well and an intercepting well system, the system is composed of a water inlet pipe, a water outlet pipe and a sewage intercepting pipe, domestic sewage or initial rainwater and later stage rainwater in a drain pipe are diverted, wherein the domestic sewage or the initial rainwater is intercepted to a sewage pipe and then is conveyed to a sewage treatment plant for treatment and then is discharged after reaching the standard (further, the initial rainwater can be stored or intercepted to the sewage treatment plant for treatment and then is discharged after reaching the standard), and the middle and later stage rainwater is directly discharged to a natural water body.

In reality, devices for realizing the cut-off and conduction functions in a diversion well, a abandoning well and an intercepting well generally adopt electric control or hydraulic control. However, in reality, electric control or hydraulic control is not suitable:

flammable and explosive biogas is generally generated in a closed pipeline and a sewage environment, so that an electric control part in contact with the biogas is required to have an explosion-proof function when an electric control type device is applied, the price of an electric control type system is expensive, and the flooding conditions in a diversion well, a flow abandoning well and an intercepting well are between hours and days, so that the redundancy and the cost of the electric control device which is completely suitable for underwater use are overlarge, and the flooding capacity of a common IP 68-grade electric control device is insufficient within hours. In addition, the device adopting the electric control system generally installs the electric control part on the ground, and the electric control device is not suitable for occasions requiring concealed installation.

To solve the above problems, a hydraulic control type apparatus has been developed. The hydraulic control device has no explosion hidden trouble and can be flooded for a long time. But it also has obvious shortcomings, the hydraulic control system has higher working pressure, has very high requirements on the pressure resistance and the leakage resistance of the hydraulic pipeline, and must use two oil pipes: the high-pressure oil pipe is expensive, so the price of the whole system is expensive under the requirements of unit price and longer pipeline. Further, since the operation is performed at a high pressure, safety accidents are easily caused once leakage problems occur. And the leaked hydraulic oil is easy to pollute the environment in the debugging and overhauling processes.

Disclosure of Invention

In view of the safety problems of the prior art with electrical control and the high cost of hydraulic control, the inventors considered a device that uses compressed air as a power source. The compressed air has smaller working pressure and is safer, the prior compressed air generation and control device is mature, reliable and economical, secondary pollution can not be introduced into the compressed air, and the compressed air device has no explosion risk. The compressed air control device can be flooded for a long time, however, because the condition in the pipeline is responsible, how to control the compressed air as power and ensure the safety and the low cost is a dilemma, the main problem in the process is that the design and the control of the pipeline need to meet the requirements of subsequent quick and convenient expansion, the inventor group develops the technical scheme of the invention through creative research and work aiming at the real condition of domestic drainage pipes for rain and sewage combined control and rain and sewage separated control, the pipeline flow dividing system with one inlet and two outlets arranges the main flow divider on the pipeline, the main control is carried out on the gas conveying main pipe, and the gas conveying branch pipe is arranged for expansion, thereby skillfully solving the problems of ensuring the safety and the low cost by using the compressed air for control, and ensuring the design and the control of the pipeline to meet the requirements of subsequent quick, low cost, The requirement of convenient dilatation.

Therefore, the invention provides the following technical scheme:

the invention provides a pipeline shunting system with a one-inlet-two-outlet structure, which is used for shunting fluid in a drain pipe and is characterized by comprising the following components:

a compressed gas source for providing compressed gas;

at least one control valve, the inlet of which is communicated with the compressed air source,

at least one gas delivery trunk in communication with the outlet of the control valve for delivering compressed gas;

a pneumatic flow divider is arranged on the upper portion of the air cylinder,

the pneumatic flow divider is composed of a flow divider body and at least one pneumatic control assembly, the flow divider body is arranged on a drain pipe pipeline, the flow divider body is provided with an inlet, a first outlet and a second outlet, the first outlet is used for communicating the inlet with a sewage pipe or an initial rain pipe to form a flow-stopping channel, the pneumatic control assembly is arranged in the flow-stopping channel, and the second outlet is used for communicating the inlet with the drain pipe at the downstream of the flow divider body;

the pneumatic control assembly is connected with the gas conveying main pipe through a gas conveying branch pipe and is used for controlling the opening and closing of the corresponding outlet;

the controller is connected with the control valve and is used for controlling the control valve; and

the measuring instrument is connected with the controller and is used for transmitting the measuring information collected by the measuring instrument to the controller,

and after receiving the measurement information, the controller controls the control valve to act according to the measurement information to switch on the compressed air source and the pneumatic control assembly, the pneumatic control assembly acts to control the cut-off and switch-on states of the intercepting channel, sewage and/or initial rainwater in the drainage pipe is shunted to the sewage pipe or the initial rainwater pipe, and middle and later rainwater in the drainage pipe is shunted to the rainwater pipe.

The invention provides a pipeline shunting system with a one-inlet and two-outlet structure, which is characterized in that: the pneumatic control assembly is an air bag or a pneumatic pipe clamp valve, an outlet of the air bag or the pneumatic pipe clamp valve is communicated with the gas conveying main pipe through a gas conveying branch pipe, when the air bag or the pneumatic pipe clamp valve is inflated and expanded, the intercepting channel is in a stop state, and when the air bag or the pneumatic pipe clamp valve is not inflated and is in a natural state, the intercepting channel is in a conducting state.

The invention provides a pipeline shunting system with a one-inlet and two-outlet structure, which is characterized in that: when the horizontal height of the drain pipe is higher than that of the sewage pipe or the initial rain pipe, the pneumatic control assembly is arranged and arranged at the first outlet, and sewage and/or initial rainwater discharged by the first outlet fall into the sewage pipe or the initial rain pipe by gravity.

The invention provides a pipeline shunting system with a one-inlet and two-outlet structure, which is characterized in that: when the horizontal height of the drain pipe is lower than that of the sewage pipe or the rainwater pipe, the pneumatic control assembly is arranged, the pneumatic flow divider further comprises a storage pool, a connecting pipe and a water pump, the horizontal height of the connecting pipe is lower than that of the drain pipe, the first water outlet is connected with the storage pool through the connecting pipe, the pneumatic control assembly is arranged on the connecting pipe, the storage pool is used for storing sewage and/or initial rainwater, and the water pump pumps the sewage and/or initial rainwater in the storage pool into the sewage pipe or the initial rainwater pipe.

The invention provides a pipeline shunting system with a one-inlet and two-outlet structure, which is characterized in that: the system is provided with a control valve and a gas conveying main pipe, and the air bag or pneumatic pipe clamping valve is communicated with the gas conveying main pipe through the gas conveying branch pipe.

The invention provides a pipeline shunting system with a one-inlet and two-outlet structure, which is characterized in that: the method comprises the following steps that a pipe network area is divided into a plurality of areas, each area is provided with a control valve, a gas conveying main pipe and a plurality of pneumatic flow dividers, an air bag or a pneumatic pipe clamping valve of each pneumatic flow divider is communicated with the gas conveying main pipe through the gas conveying branch pipe, and a controller controls all the air bags or the pneumatic pipe clamping valves in the areas to be opened and closed simultaneously.

The invention provides a pipeline shunting system with a one-inlet and two-outlet structure, which is characterized in that: the drainage pipe is a rainwater pipe in a split system or a confluence pipe in a confluence system.

The invention provides a pipeline shunting system with a one-inlet and two-outlet structure, which is characterized in that: wherein the compressed air source is an air compressor, the control valve is an electromagnetic valve combination or a two-position three-way reversing valve,

the controller is electrically connected with the air compressor and the control valve,

after receiving the measurement information sent by the measuring instrument, the controller controls the control valve to act according to the measurement information so as to switch on the compressed air source and the air bag or the pneumatic tube pinch valve, the air bag or the pneumatic tube pinch valve is inflated and expanded, so that the intercepting channel is in a cut-off state,

after receiving the measurement information sent by the measuring instrument again, the controller controls the control valve to act again according to the measurement information, so that the control valve is stopped from the compressed air source, the gas conveying main pipe is communicated with the atmosphere, namely, compressed air in the air bag or the pneumatic pipe clamp valve is exhausted to be in a natural state, and the intercepting channel is in a conducting state.

The invention provides a pipeline shunting system with a one-inlet and two-outlet structure, which is characterized in that: when the sewage pipe or the primary rain pipe is at the same level without height difference with the connecting pipe,

correspondingly, the number of the gas conveying main pipes is two: a first gas delivery main and a second gas delivery main,

the number of the control valves is two: a first control valve and a second control valve,

the number of the corresponding air bags or pneumatic tube clamping valves in the pneumatic flow divider is also two: a first air bag or pneumatic pinch valve is disposed in the first outlet, a second air bag or pneumatic pinch valve is disposed in the second outlet,

the first control valve controls the first gas conveying main pipe to control the inflation and deflation of the first air bag or the pneumatic pipe clamp valve, and the second control valve controls the second gas conveying main pipe to control the inflation and deflation of the second air bag or the pneumatic pipe clamp valve.

The invention provides a pipeline shunting system with a one-inlet and two-outlet structure, which is characterized in that: the method comprises the following steps that a pipe network area is divided into a plurality of areas, each area is provided with two control valves, two gas conveying main pipes and a plurality of pneumatic flow dividers, all first air bags or pneumatic pipe clamp valves in the area are respectively communicated with the first gas conveying main pipes through the gas conveying branch pipes, all second air bags or pneumatic pipe clamp valves in the area are respectively communicated with the second gas conveying main pipes through the gas conveying branch pipes, and a controller controls all the first air bags or pneumatic pipe clamp valves or all the second air bags or pneumatic pipe clamp valves to be communicated with the atmosphere or the gas source through controlling the first control valves or the second control valves according to measurement signals.

The invention provides a pipeline shunting system with a one-inlet and two-outlet structure, which is characterized in that: wherein the measuring instrument comprises one or more of a rain gauge, a timer, a water quality monitor and a liquid level meter,

correspondingly, the measurement information comprises one or more of rainfall, rainfall time, water quality and water level in the well body structure.

The invention provides a pipeline shunting system with a one-inlet and two-outlet structure, which is characterized in that: wherein the pneumatic diverter further has a position sensor disposed on an inner wall of the mounting tube for detecting a position at which the air bag or pneumatic pinch valve is inflated.

The invention provides a pipeline shunting system with a one-inlet and two-outlet structure, which is characterized in that:

the pneumatic control assembly comprises an air cylinder and a flashboard assembly, the flashboard assembly is arranged in the flow divider body, the air cylinder drives the flashboard assembly to switch between a first position and a second position, the flashboard assembly blocks the second outlet at the first position, the inlet is communicated with the first outlet, the flashboard assembly blocks the first outlet at the second position, and the inlet is communicated with the second outlet;

correspondingly, set up two way gas conveying main pipes and gas conveying and be in charge of, an inlet port of cylinder is in charge of through gas conveying and is linked to each other with gas conveying main pipe all the way, another inlet port of cylinder is in charge of through another gas conveying and is linked to each other with another way gas conveying main pipe, two way gas conveying main pipe with pass through between the air supply the control valve links to each other, the control valve is used for control the cylinder stretches out and contracts, and then control the flashboard subassembly switches between primary importance and second place.

The invention provides a pipeline shunting system with a one-inlet and two-outlet structure, which is characterized in that: the method comprises the following steps that a pipe network area is divided into a plurality of subareas, each subarea is provided with two control valves, two gas conveying main pipes and a plurality of pneumatic flow dividers, one gas inlet hole of each cylinder in each subarea is respectively communicated with a first gas conveying main pipe through a gas conveying branch pipe, and the other gas hole of each cylinder in each subarea is respectively communicated with a second gas conveying main pipe through a gas conveying branch pipe.

The invention provides a pipeline shunting system with a one-inlet and two-outlet structure, which is characterized in that: the gas conveying main pipe is arranged on the inner wall of the upper part of the sewage pipe and communicated with the pneumatic control assembly through the gas conveying branch pipe.

The invention also provides a pipeline shunting method with a one-inlet-two-outlet structure, which is used for correspondingly shunting sewage and rainwater in the drainage pipes of a plurality of areas in the area to a sewage pipe or an initial rainwater pipe and a rainwater pipe and is characterized in that:

in sunny days, the control valve acts to connect the compressed air source and the pneumatic control assembly, and the pneumatic control assembly acts to control the intercepting channel to be in a conducting state and to shunt the sewage in the drainage pipe to the sewage pipe or the primary rain pipe;

when raining, the measuring device continuously collects the measuring information, the controller judges according to the collected measuring information, the controller controls the pneumatic control assembly to act,

setting a threshold value, and when the measurement information does not reach the threshold value, controlling the conduction of the intercepting channel by the pneumatic control assembly to shunt initial rainwater in the drainage pipe to the sewage pipe or the initial rainwater pipe;

when the measurement information reaches the threshold value, the cut-off channel controlled by the pneumatic control assembly is cut off, and middle and later stage rainwater in the drainage pipe is distributed to the rainwater pipe.

The invention provides a pipeline shunting method with a one-inlet-two-outlet structure, which is characterized in that when the measurement information is the rainfall measured by using a rain gauge:

when no rainwater enters the diversion system in fine days, the controller controls the control valve according to the zero rainfall to enable the intercepting channel to be in a conducting state, and the entering sewage can enter the sewage pipe or the primary rainwater pipe through the intercepting channel;

when rainfall enters the diversion system in a rainy day, because the initial rainfall does not reach the threshold value, the corresponding controller still controls the control valve according to the rainfall which does not reach the threshold value so that the interception channel is in a conduction state, and the entering initial rainwater can enter an initial rainwater pipe or a sewage pipe through the interception channel;

along with the increase of the rainfall, when the rainfall reaches a threshold value, the controller controls the control valve to act;

after the control valve acts, the cut-off channel controlled by the pneumatic control assembly is changed from a conduction state to a cut-off state;

after the intercepting channel is changed into a cut-off state, the inlet is communicated with the rainwater pipeline, so that the fluid at the inlet is correspondingly distributed into the rainwater pipe.

The invention has the following functions and beneficial effects: according to the pipeline shunting system with the one-inlet and two-outlet structure, which is provided by the invention, compressed gas can be provided due to the compressed gas source; the control valve is provided with at least one inlet which is communicated with the compressed gas source and can control the inflation and deflation of the compressed gas; at least one gas delivery main, which is communicated with the outlet of the control valve and can remotely deliver compressed gas; the pneumatic flow divider is arranged on a pipeline of the water drainage pipe, and is provided with an inlet communicated with the water drainage pipe, two outlets respectively communicated with the sewage pipe and the rainwater pipe, and at least one pneumatic control assembly arranged in the outlet communicated with the sewage pipe, wherein the pneumatic control assembly is connected with the gas conveying main pipe through a gas conveying branch pipe, and can control the opening and closing of the corresponding outlet under the action of compressed air of a remote compressed gas source; the controller is connected with the control valve and can directly control the control valve; the pipeline shunting system provided by the invention can be safely and controllably controlled by using compressed air, and only a control valve is arranged on a trunk line, and the control valve, the controller and a compressed air source are arranged in a control chamber of a plate area, so that the inflation and deflation of an air bag or an air pipe clamping valve in a pneumatic shunt in the whole plate area can be controlled to control the shunting process of sewage and rainwater, and the access and expansion are convenient.

The whole system has simple pipeline relation, easy design realization and convenient capacity expansion.

Drawings

FIG. 1 is a schematic structural diagram of a pipeline splitting system of a zoning zone according to an embodiment of the present invention;

FIG. 2 is a cross-sectional view of this FIG. 1;

FIG. 3 is a schematic structural diagram of a pipeline splitting system of a splitting area according to a second embodiment of the present invention;

FIG. 4 is a cross-sectional view of this FIG. 2;

FIG. 5 is a schematic structural diagram of a pipeline splitting system of a third zoning zone according to the embodiment of the invention;

FIG. 6 is a cross-sectional view of this FIG. 5;

FIG. 7 is a schematic structural diagram of a pipe diversion system of a fifth zoning zone according to the embodiment of the present invention;

FIG. 8 is a cross-sectional view of this FIG. 7;

FIG. 9 is a schematic structural view of a fifth embodiment of a zonal pipeline diversion system employing cylinder and ram assemblies as pneumatic control assemblies;

FIG. 10 is a schematic structural view of a cylinder and gate plate assembly in the zonal piping system of the fifth embodiment; and

figure 11 is a schematic view of an air bag or pneumatic pinch valve installation.

Illustration of the drawings:

the system comprises an inspection well 1, a rainwater pipe 2, a diversion well 3, a sewage pipe 4, a drainage pipe 5, a connecting pipe 6 and a storage pool 7;

a compressed gas source 10, a control valve 20, a gas conveying main pipe 30, a pneumatic flow divider 40, a controller 50 and a measuring instrument 60;

an inlet 41, a first outlet 42, a second outlet 43, a pneumatic control assembly 44, a first air bag or pneumatic pinch valve 441, a second air bag or pneumatic pinch valve 442;

the device comprises a cylinder D, a flashboard assembly E, a crank F, a transmission shaft G and a cylinder piston rod D-1;

mounting bracket G, jib H.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and examples.

Example one

Fig. 1 is a schematic structural diagram of a pipeline branching system of a zoning zone according to an embodiment of the present invention.

Fig. 2 is a cross-sectional view of fig. 1.

Referring to fig. 1 and 2, an embodiment of the present invention provides a zonal pipe diversion system for splitting sewage and rainwater in drains of a plurality of zones in an area, wherein the drains may be split-type rainwater pipes or split-type merging pipes, such as a rainwater pipe 2, a sewer pipe or a primary rainwater pipe 4, and a pipe diversion system 100 of a one-in-two-out structure, as shown in fig. 1. Wherein,

a pipe diversion system 100 of a one-in-two-out configuration for diverting fluid in a drain.

The system comprises a compressed gas source 10, a control valve 20, a gas conveying main pipe 30, a pneumatic flow divider 40, a controller 50 and a measuring instrument 60 which are arranged in a cell control room.

A plurality of inspection wells 1 are provided along the rainwater pipe 2, and each inspection well 1 is communicated with one outlet of the pneumatic diverter 40 through a connecting pipe.

A compressed air source 10, which is an air compressor in this embodiment, is disposed in the control room of the cell.

A control valve 20, the inlet of which is communicated with the compressed air source, the used control valves are different according to the difference of the pneumatic flow divider 40, when the pneumatic flow divider 40 is in an air bag structure, the control valve is an electromagnetic valve combination or a two-position three-way reversing valve, in the embodiment, the control valve uses a two-position three-way electromagnetic reversing valve and is arranged in a control chamber of a cell; when the pneumatic splitter 40 is a cylinder-type gate plate structure, the control valve is a two-position four-way reversing valve.

At least one gas delivery trunk 30, which is communicated with the outlet of the control valve 20 and is used for delivering compressed gas, is arranged on the inner wall of the upper part of the sewage pipe 4, and is communicated with the pneumatic diverter 40 through a gas delivery branch pipe. Wherein, when the pneumatic diverter 40 has an air bladder, a gas delivery manifold 30 is provided; when the pneumatic splitter 40 has two air bags, two gas delivery main pipes 30 are provided; when the pneumatic splitter 40 is of a cylinder type gate plate structure, two gas delivery mains 30 are provided.

A plurality of pneumatic diverters 40, disposed on the drain line, include a diverter body having an inlet 41 communicating with the drain pipe and two outlets 42 and 43 communicating with the sewer pipe, the storm sewer pipe, respectively, and at least one pneumatic control assembly 44 disposed in the outlet communicating with the sewer pipe. In this embodiment, the inlet 41 and the first outlet 42 are main passages, and the second outlet 43 is a bypass.

The first outlet 42 is used for communicating the inlet with a sewage pipe or an initial rain pipe 4 to form a cut-off channel, the pneumatic control assembly is arranged in the cut-off channel, and the second outlet is used for communicating the inlet with the rain pipe 2 at the downstream of the diverter body.

The pneumatic control assembly 44, which may be a bladder or air pillow, in this embodiment a drum-shaped bladder, is disposed within the second outlet 43 and secured thereto by a tether.

When the air bag is inflated and expanded, the air bag is tightly attached and fixed with the pipeline, and the expanded air bag can be fixed again under the action of the rope, so that the air bag can not be displaced too much and separated from the outlet, and can be expanded to completely block the outlet, so that the outlet is in a cut-off state,

when the air bag is not inflated and is in a natural state, a gap is formed between the air bag and the inner wall of the outlet pipe, and the gap can allow fluid to pass through and is in a conducting state.

The pneumatic control assembly 44 is connected with the gas transmission main pipe 30 through a gas transmission branch pipe, and is used for controlling the opening and closing of the corresponding outlet.

A controller 50, electrically connected to the control valve 2, for controlling the control valve 20, is provided in the control room of the cell.

And the measuring instrument 60 is in communication connection with the controller, is used for transmitting the measuring information collected by the measuring instrument to the controller for control, and is arranged in a control room of the cell. The measuring instrument comprises one or more of a rain gauge, a timer, a water quality monitor and a liquid level meter, correspondingly, and the measuring information comprises one or more of rainfall, rainfall time, water quality and water level in a well body structure.

And the timer is controlled by setting a time threshold of the rainfall time, measures the rainfall time and sends the rainfall time as measurement information to the controller.

The water quality monitor monitors and acquires water quality indexes in water by arranging the detector in an inlet of a drain pipe, sets a threshold value of the corresponding water quality index, and sends a measurement value of the water quality index as measurement information to the controller in real time.

And the liquid level meter is arranged at the underground part of the diversion well, the abandoned flow well or the intercepting well, is controlled by measuring the liquid level, and sends the measured liquid level as measurement information to the controller.

And the rain gauge is placed outdoors in the open air, is controlled by measuring the rainfall and sends the measured rainfall to the controller as measurement information.

In the above embodiment, one measuring instrument may be used, and in order to improve the accuracy of control or in a special requirement, multiple measuring instruments may be provided to collect multiple kinds of measurement information for control: when various measurement information all satisfy the requirement, the controller just moves, and such operation can make the reposition of redundant personnel effect of rainwater, sewage better.

After receiving the measurement information, the controller 50 determines whether the measurement information exceeds a set threshold, and accordingly generates a control signal, and the control valve operates to turn on the compressed air source and the pneumatic control assembly according to the control signal, and the pneumatic control assembly operates to control the cut-off and turn-on states of the corresponding outlet.

The control method of the system comprises the following steps:

in sunny days, the control valve acts to connect the compressed air source and all the pneumatic control assemblies in the area, and the pneumatic control assemblies act to control all the intercepting channels to be in a conducting state and shunt the sewage in the drainage pipe to the sewage pipe or the initial rain pipe;

when raining, the measuring device continuously collects the measuring information, the controller judges according to the collected measuring information, the controller acts to control all the pneumatic control components to act simultaneously,

setting a threshold value, and when the measurement information does not reach the threshold value, switching on the intercepting channels controlled by all the pneumatic control assemblies to shunt initial rainwater in the drainage pipe to the sewage pipe or the initial rainwater pipe;

when the measurement information reaches the threshold value, all the intercepting channels controlled by the pneumatic control assembly are cut off, and middle and later stage rainwater in the drainage pipe is shunted to the rainwater pipe. Specifically, when the measuring device is a rainfall timer, the set threshold is a rainfall threshold, when the measuring device is a timer, the set threshold is a time threshold, when the measuring device is a liquid level timer, the set threshold is a liquid level threshold, and so on, different types of thresholds can be selected according to specific use requirements.

The controller of this embodiment judges according to the acquired measurement information, and changes the on-off state of the intercepting channels controlled by all the pneumatic control assemblies after the control valve acts. In this embodiment, the inlet is communicated with or blocked from the sewage pipe or the primary rain pipe by changing the on-off state of the intercepting channel, so that the fluid at the inlet is correspondingly distributed to the sewage pipe or the primary rain pipe and the rain pipe. Only one compressed air source 10 and one control valve 20 need to be designed in one area, the control valve 20 can control all the pneumatic control components connected with one gas conveying main pipe 30 to act, all the pneumatic control components are switched to be in one state at the same time, and the control is simple and the automation cost is high.

Example two

On the basis of the first embodiment, as shown in fig. 2, in this case, when the level of the sewer pipe 4 is lower than that of the rainwater pipe, the pneumatic diverter 40 is installed in the manhole, the intercepting well or the well body of the diverting well, the inlet of the sewer pipe 4 is arranged on the well wall of the well body, the sewer pipe 4 is arranged below the pneumatic diverter 40, the pneumatic diverter 40 comprises a diverter body and a pneumatic control assembly, the inlet of the diverter body is connected with the drain pipe upstream of the pneumatic diverter through a connecting short pipe, the second outlet of the diverter body is connected with the connecting pipe connected with the rainwater pipe downstream of the pneumatic diverter through a connecting short pipe, the first outlet of the diverter body extends downwards, the outlet connected with the sewer pipe 4, i.e. the first outlet 42, is upstream relative to the other second outlet 43 communicated with the rainwater pipe, correspondingly, the number of the pneumatic conveying trunk 30 is one, the number of the control valves 20 is also one, and the number of the corresponding air bags 44 in the pneumatic splitter 40 is also one and is provided in the first outlet 42 communicating with the sewer pipe. The air bags of the pneumatic flow dividers 40 of the system are respectively communicated with the air conveying main pipe through the air conveying branch pipes, and the controller controls the control valves to act and controls all the air bags to be inflated and opened or deflated at the same time to restore the natural state.

Referring to fig. 11, the air bag is installed in the shunt body through a mounting assembly, the mounting assembly comprises a mounting frame and two hanging rods, one end of each hanging rod is hooked on a lifting hook on the mounting frame, the other end of each hanging rod is connected with the air bag, a plurality of lifting hooks which are arranged in a straight line are arranged on the mounting frame, and the two hanging rods are hooked on the lifting hooks at different positions to adjust the up-and-down position of the air bag in the first outlet pipe.

Specifically for the pneumatic diverter 40, the pneumatic control assembly, i.e., the air bladder or air pillow, disposed in the first outlet 42 and/or the second outlet 43 has two states:

when the air bag is not inflated and is in a natural state, a gap is formed between the air bag and the inner wall of the outlet pipe, fluid can be allowed to pass through the gap, and the drain pipe is communicated with the sewage pipe communicated with the outlet provided with the air bag, namely the fluid in the drain pipe is directly discharged into the sewage pipe at the moment, and domestic sewage and initial rainwater are discharged into the sewage pipe;

when the air bag is inflated and expanded, the expanded air bag can be expanded to completely block the outlet communicated with the sewage pipe, so that the outlet is in a cut-off state, namely, at the moment, the fluid in the drainage pipe can only be discharged into the rainwater pipe through the outlet communicated with the rainwater pipe, and the middle and later stage rainwater is discharged into the rainwater pipe.

The controller controls the control valve to act according to whether the measurement information exceeds a threshold value or not after receiving the measurement information sent by the measuring instrument, the controller is communicated with the communication state of the compressed air source and the air bag, when the air bag is communicated with the compressed air source and inflated and expanded, the outlet is in a stop state, when the air bag is not communicated with the compressed air source and is communicated with the atmosphere, the air bag is deflated and cannot be expanded, and the outlet is in a communication state.

After receiving the measurement information sent by the measurement instrument again, the controller controls the control valve to act again according to the measurement information, so that the control valve is stopped or communicated with the compressed air source, the gas delivery main pipe is communicated with the atmosphere or is communicated with the compressed air source, namely, the compressed air in the air bag is emptied to be in a natural state or inflated to be in an expansion state, and the communication and stop states of the corresponding outlets are changed.

Aiming at the condition that one air bag is used for controlling, the invention also provides a pipeline flow dividing method with a one-inlet-two-outlet structure, which is used for correspondingly dividing sewage and rainwater in the drainage pipes of a plurality of areas in the area into a sewage pipe and a rainwater pipe, wherein as shown in figure 2, the sewage pipe is arranged below the drainage pipes, and when an outlet, namely a bypass outlet, close to an inlet of the pneumatic flow divider is communicated with the sewage pipe, and an outlet, far away from the inlet, of the pneumatic flow divider is communicated with the rainwater pipe, the flow dividing method comprises the following steps:

when no rainwater enters the diversion system, the measurement information measured by the measurement instrument does not reach a threshold value, the controller sends an instruction to the control valve according to the measurement information, so that the gas conveying main pipe is communicated with the atmosphere, the gas conveying main pipe has no pressure, the gas bag is not inflated and is in a natural state, a gap is formed between the gas bag and the inner wall of the outlet close to the inlet, the gap can allow fluid to pass through, so that the inlet and the outlet close to the inlet are in a communicated state, and when rainwater or sewage enters the diversion system, initial rainwater or sewage is discharged into the sewage pipe through the outlet close to the inlet under the action of a height difference.

According to the measurement information that gets into the reposition of redundant personnel system, the controller sends the instruction according to the measurement information that measuring instrument sent and gives the control valve for gas transmission main pipe and compressed air source intercommunication, compressed air will get into in the gasbag and make the gasbag is aerifyd and is in the inflation state, and the gasbag of inflation can expand to block up the export that is close to the import completely, thereby makes the export that is close to the import be in the off-state, the import switches on with the export of keeping away from the import, and when rainwater got into reposition of redundant personnel system, middle and later stage rainwater drained into the downspout through this export of keeping away from the import.

When the outlet close to the inlet is communicated with the rain water pipe and the outlet far from the inlet is communicated with the sewage pipe, which is the case described in the first embodiment, the flow dividing method is as follows:

when no rainwater enters the diversion system, the controller sends an instruction to the control valve according to measurement information sent by the measuring instrument, so that the gas conveying main pipe is communicated with the compressed gas source, compressed air can enter the air bag to inflate the air bag to be in an expansion state, the expanded air bag can expand to completely block the outlet close to the inlet, so that the outlet close to the inlet is in a stop state, the inlet is communicated with the outlet far away from the inlet, and when rainwater enters the diversion system, initial rainwater or sewage is discharged into the sewage pipe through the outlet far away from the inlet under the action of height difference;

according to the measurement information that gets into the reposition of redundant personnel system, the controller sends the instruction according to measurement information and gives the control valve for gas transmission main pipe and atmosphere intercommunication, gas transmission main pipe do not have pressure, the gasbag is not aerifyd and is in natural state, has the clearance between gasbag and the inner wall of the export that is close to the import, and this clearance can allow the fluid to pass through, thereby makes import and the export that is close to the import are in the conducting state, and when rainwater got into the reposition of redundant personnel system, middle and later stage rainwater was discharged into the downspout through the export that is close to the import.

The case of using the rain gauge will be described below.

In the initial state, when no rainwater enters the diversion system in fine days, the controller controls the control valve according to the zero rainfall to enable the intercepting channel to be in a conducting state, and the entering sewage can enter the sewage pipe or the initial rainwater pipe through the intercepting channel.

When rainfall enters the diversion system in a rainy day, because the initial rainfall does not reach the threshold value, the corresponding controller still controls the control valve according to the rainfall which does not reach the threshold value so that the intercepting channel is in a conducting state, and the entering initial rainwater can enter an initial rainwater pipe or a sewage pipe through the intercepting channel.

And secondly, along with the increase of the rainfall, when the rainfall reaches a threshold value, the controller controls the control valve to act.

And thirdly, changing the cut-off channel controlled by the pneumatic control assembly from a conducting state to a cut-off state after the control valve acts.

And fourthly, after the intercepting channel is changed into a cut-off state, the inlet is communicated with the rainwater pipeline, so that the fluid at the inlet is correspondingly distributed into the rainwater pipe.

State one is entered when the amount of rain decreases below the threshold.

When the rain is rained, the system enters an initial state.

EXAMPLE III

Fig. 3 is a schematic structural diagram of a pipeline branching system of a zoning area in the second embodiment of the invention.

Fig. 4 is a cross-sectional view of fig. 3.

As shown in fig. 3 and 4, the present embodiment is different from the first embodiment in that the sewage pipe 4 and the pneumatic diverter 40 are not at the same level, and cannot naturally divert water depending on the height difference. For this reason, in this case, two air bags are required to be disposed in the pneumatic diverter for the diversion control: a first air bag is arranged in the outlet in communication with the sewer pipe and a second air bag is arranged in the outlet in communication with the storm sewer pipe, and correspondingly, two control valves are to be arranged: a first control valve and a second control valve, the number of the gas transmission main pipes is also two: the first control valve controls the first gas conveying main pipe to control the inflation and deflation of the first air bag, and the second control valve controls the second gas conveying main pipe to control the inflation and deflation of the second air bag. As shown in fig. 3 and 4.

As shown in fig. 4, the inlet 41, the first outlet 42, and the second outlet 43 of the pneumatic separator 40 are in a single plane, and the first outlet 42 and the second outlet 43 are provided with the first bladder 441 and the second bladder 442, respectively. All the first air bags 441 of the plurality of pneumatic flow dividers 40 of the system are respectively communicated with the first gas conveying main pipe through gas conveying branch pipes, all the second air bags 442 of the plurality of pneumatic flow dividers 40 are respectively communicated with the second gas conveying main pipe through gas conveying branch pipes, and the controller controls the action of the control valve, controls all the first air bags to be inflated and opened at the same time, controls all the second air bags to be deflated and restored to a natural state, or controls all the first air bags to be deflated and restored to the natural state at the same time, and controls all the second air bags to be inflated and opened.

In a specific situation, on a sunny day, after receiving the measurement information sent by the measurement instrument 60, the controller 50 controls the second control valve 22 to operate according to the measurement information to turn on the compressed air source 10 and the second air bag 442, the second air bag 442 is inflated, and at this time, an outlet communicated with the rainwater pipe 2 is in a cut-off state, so that the sewage in the drainage pipe is short-circuited and flows into the sewage pipe 4.

When raining, the controller 50 receives the measurement information sent by the measurement instrument 60, and controls the first control valve 21 to operate according to the measurement information to turn on the compressed air source 10 and the first air bag 441, and the first air bag 441 is inflated, and at this time, the outlet communicated with the sewer pipe 4 is in a cut-off state, so that the rainwater in the sewer pipe is short-circuited and flows into the rainwater pipe 2.

Aiming at the condition that the two air bags are controlled, the invention also provides a pipeline flow dividing method with a one-inlet-two-outlet structure, which is used for correspondingly dividing sewage and rainwater in the drainage pipes of a plurality of areas in the area into a sewage pipe and a rainwater pipe, and the method is suitable for three ports of a pneumatic separator, namely, the sewage pipe and the drainage pipe have no height difference: the inlet and the two outlets are on the same horizontal plane, and the number of the corresponding air bags in the pneumatic flow divider is also two: the first air bag is arranged in an outlet communicated with the sewage pipe, the second air bag is arranged in an outlet communicated with the rainwater pipe, the first control valve controls the first air conveying main pipe to control the inflation and deflation of the first air bag, the second control valve controls the second air conveying main pipe to control the inflation and deflation of the second air bag,

1. when the outlet of the pneumatic diverter close to the inlet is communicated with the sewage pipe and the outlet far from the inlet is communicated with the rainwater pipe, this situation is the two cases described in this embodiment, and the diversion method at this time is as follows:

when no rainwater enters the flow dividing system in sunny days, the controller sends an instruction to the first control valve and the second control valve according to the measurement information, so that the first gas conveying main pipe is communicated with the atmosphere, the second gas conveying main pipe is communicated with the compressed gas source, the first gas conveying main pipe has no pressure, the first gas conveying main pipe has pressure, the first air bag is not inflated to be in a natural state, and the compressed air enters the second air bag to inflate the second air bag to be in an expansion state,

at this time, the first bladder and the inner wall of the outlet near the inlet have a gap therebetween which allows the fluid to pass therethrough, so that the inlet and the outlet near the inlet are in a conductive state, and

the second air bag will expand to block the outlet far from the inlet completely, so that the outlet far from the inlet is in a cut-off state, the inlet is communicated with the outlet far from the inlet,

when initial rainwater or sewage enters the flow dividing system, the initial rainwater or sewage in the drainage pipe is in a short circuit and flows into the sewage pipe through the outlet close to the inlet even if no height difference exists because the outlet communicated with the rainwater pipe is in a cut-off state and the outlet communicated with the sewage pipe is in a conduction state;

when rainfall enters the shunt system in rainy days, the controller sends an instruction to the first control valve and the second control valve according to the measurement information, so that the second gas conveying main pipe is communicated with the atmosphere, the first gas conveying main pipe is communicated with the compressed gas source, the second gas conveying main pipe has no pressure, the first gas conveying main pipe has pressure, the second air bag is not inflated to be in a natural state, and the compressed air enters the first air bag to inflate the first air bag to be in an expansion state,

at this time, the second bladder has a gap with an inner wall of the outlet near the inlet to allow the fluid to pass therethrough, so that the inlet and the outlet near the inlet are in a conductive state

The first air bag will expand to completely block the outlet far from the inlet, so that the outlet far from the inlet is in a cut-off state, the inlet is communicated with the outlet far from the inlet,

when later stage rainwater enters the diversion system, the outlet communicated with the rainwater pipe is in a conduction state and the outlet communicated with the sewage pipe is in a cut-off state, so that even if no height difference exists, the later stage rainwater in the drainage pipe can be in short circuit and flows into the rainwater pipe through the outlet far away from the inlet.

Example four

Fig. 5 is a schematic structural diagram of a pipeline branching system of a fourth zoning area according to the embodiment of the invention.

Fig. 6 is a cross-sectional view of fig. 5.

As shown in fig. 5 and 6, the difference between this embodiment and the second embodiment is that when the level of the drain pipe is lower than the level of the sewage pipe or the rain pipe, a pneumatic control assembly is provided, the pneumatic diverter further includes a storage tank 5, a connection pipe and a water pump, the level of the connection pipe is lower than the level of the drain pipe, the first water outlet is connected to the storage tank through the connection pipe, the pneumatic control assembly is provided on the connection pipe, the storage tank is used for storing sewage and/or initial rainwater, and the water pump pumps the sewage and/or initial rainwater in the storage tank into the sewage pipe or the initial rainwater pipe. The air bag in the embodiment is suspended in the communicating pipe through the inhaul cable to fix the air bag.

Aiming at the situation of the embodiment, a pipeline flow dividing method with a one-inlet two-outlet structure is also provided, in sunny days, a controller controls a two-position three-way valve to act, an air bag arranged in a connecting pipe is in a natural state, sewage flowing from an inlet falls into the connecting pipe, enters a storage pool from the connecting pipe, and is pumped into a sewage pipe or an incipient rain pipe by a water pump, wherein the storage pool can be a pump pit;

in rainy days, the rain gauge detects rainfall in real time, a rainfall threshold value is set, when the rainfall threshold value is not reached, the air bag is still in a natural state, initial rainwater flowing in from the inlet falls into the connecting pipe, enters the storage pool from the connecting pipe, and sewage in the storage pool is pumped into the sewage pipe or the initial rain pipe through the water pump; when the rainfall threshold is reached, the controller controls the two-position three-way valve to act to inflate the gas conveying main pipe, all the air bags connected to the changed gas conveying main pipe are inflated to expand to plug the connecting pipe, at the moment, the connecting pipe is cut off, the inlet is communicated with the second outlet, and the rainwater in the middle and later periods flowing in from the inlet directly flows out of the rainwater pipe and is discharged into the natural water body.

EXAMPLE five

Fig. 7 is a schematic structural diagram of a pipe branching system of a fifth zoning zone according to the embodiment of the invention.

Fig. 8 is a cross-sectional view of fig. 7.

FIG. 9 is a schematic structural diagram of a piping diversion system of a zoning zone of the fifth embodiment, which uses a cylinder and a shutter assembly as a pneumatic control assembly.

Fig. 10 is a schematic structural diagram of a cylinder and shutter assembly in a zonal pipeline diversion system of the fifth embodiment.

On the basis of the first embodiment, the pneumatic control assembly in the first embodiment comprises an air cylinder and a gate plate assembly, the gate plate assembly is installed in the flow divider body, the air cylinder drives the gate plate assembly to switch between a first position and a second position, the gate plate assembly blocks the second outlet at the first position, the inlet is communicated with the first outlet, the gate plate assembly blocks the first outlet at the second position, and the inlet is communicated with the second outlet; correspondingly, two paths of gas conveying main pipes and two paths of gas conveying branch pipes are arranged, one gas inlet hole of the cylinder is connected with one path of gas conveying main pipe through one gas conveying branch pipe to form an A path of main pipe, the other gas inlet hole of the cylinder is connected with the other path of gas conveying main pipe to form an A path of main pipe through the other gas conveying branch pipe, the two paths of gas conveying main pipes are connected with a gas source through a control valve, the control valve is used for controlling the cylinder to stretch out and shrink, and then the control gate plate assembly is switched between the first position and the second position. When a plurality of pneumatic diverters are arranged, a two-position four-way reversing valve and two gas conveying main pipes are arranged, the two gas conveying main pipes are connected with a compressed gas source 10 through the two-position four-way reversing valve, one gas inlet hole of all the cylinders in the block area is respectively communicated with a first gas conveying main pipe, namely an A-way main pipe, through a gas conveying branch pipe, and the other gas hole of all the cylinders in the block area is respectively communicated with a second gas conveying main pipe, namely a B-way main pipe, through a gas conveying branch pipe.

Referring to fig. 9 and 10, a crank and a transmission shaft are arranged between the cylinder and the gate plate assembly, one end of the crank is rotatably connected with a piston rod of the cylinder, the other end of the crank is fixedly connected with one end of the transmission shaft, and the gate plate assembly is connected with the transmission shaft. Wherein, the flashboard subassembly includes the flashboard seat and installs the flashboard on the flashboard seat, and the flashboard seat is located between export and the first export, pneumatic drive assembly's output with the flashboard links to each other, drives the flashboard upset switches between primary importance and second place.

The specific control method of the system is as follows:

when the water is in a sunny day, the two-position four-way reversing valve is powered off, the trunk pipe in the path A is communicated with a compressed air source, the trunk pipe in the path B is communicated with the atmosphere, the trunk pipe in the path B has no pressure, the air cylinder contracts, the pneumatic flashboard assembly is located at the first position, the inlet is communicated with the first outlet, and domestic sewage in the water discharge pipe in the sunny day is discharged into the sewage pipe through the first outlet and enters a sewage treatment plant for treatment;

when the rainfall occurs, the conditions of the set threshold value are the same as those in the first embodiment, when the threshold value is not reached, the pneumatic flashboard assembly keeps the first position, and the initial rainwater is discharged into a sewage pipe through the first outlet and enters a sewage treatment plant for treatment;

when the threshold value is reached, the two four-way valves are powered on, the trunk pipe B is communicated with the compressed air source 10, the trunk pipe A is communicated with the atmosphere, the trunk pipe A has no pressure, the air cylinder contracts, the pneumatic flashboard assembly is switched to the second position, the inlet is communicated with the second outlet, and the middle and later stage rainwater in the drainage pipe is drained into the rainwater pipe and is drained into a natural water body;

after rainfall is finished, the two-position four-way reversing valve loses electricity, and the pneumatic flashboard assembly is switched to the first position.

EXAMPLE six

In a further embodiment, for the problem that a certain pipeline possibly has blockage or displacement after expansion and blockage, which cannot properly block the outlet, the further improved embodiment also provides the following optimized embodiments:

the pneumatic diverter 40 is further provided with a position sensor, and when the pneumatic diverter 40 includes an airbag, a position sensor is provided on an inner circumferential wall of the pneumatic diverter 40, on which an outlet of the airbag is provided, the position sensor being provided on an inner wall of the mounting tube for detecting a position at which the airbag is inflated.

EXAMPLE seven

The technical solution of this embodiment is to replace the air bag in the technical solutions of the first to sixth embodiments with a pneumatic pinch valve, and an elastic sleeve of the pneumatic pinch valve may be installed in a pipeline or may protrude from the pipeline and be installed on the inner wall of the well body.

The embodiment has the following functions and beneficial effects: the pipeline shunting system provided by the invention can be safely and controllably controlled by using compressed air, and only by arranging the control valve on the trunk line and arranging the control valve, the controller and the compressed air source in the control chamber of the whole area by using a trunk line and a plurality of shunting ways of the gas conveying main pipe and the branch pipes, the charging and discharging of the air bag or the pneumatic pipe clamp valve in the pneumatic shunt in the whole area can be controlled to control the shunting process of sewage and rainwater, and the connection and the expansion are convenient.

Because the pipeline diverter is used in the pipeline, the diverter body is integrally installed on the pipeline as a component, the size is small, the diverter body only needs to be installed on the pipeline, the construction and installation are convenient, and the cost is low.

For the condition that the sewage pipe is arranged below the pneumatic flow divider, the sewage is short-circuited by utilizing the height difference, so that only one gas conveying main pipe is needed to be designed to control the expansion and inflation process of the air bag or the pneumatic pipe clamp valve, the design and layout cost of the pipeline is simplified, and the subsequent management and maintenance and the subsequent expansion and access process are facilitated.

For the condition that the sewage pipe and the pneumatic diverter are positioned on the same horizontal plane, two air bags or pneumatic pipe clamp valves are arranged for controlling, one air bag or pneumatic pipe clamp valve, one gas conveying main pipe and one control valve are respectively used for uniformly controlling the conduction and stop states of the sewage pipe, the rainwater pipe and the inlet drain pipe, and only one air source is used, and the corresponding controller, control valve and measuring instrument are all arranged in the control room of the lower cell or area, so as to realize remote and synchronous control, a control room is arranged in a certain district (such as a certain road of a district, a certain street of a city or a dish market, a shop or a picture-taking area), and a control device (comprising an air source, a control valve, a controller and a measuring instrument) can carry out shunt control on rainwater and sewage of a drain pipe (which can be in a shunt system or a confluence system) of a target district.

Further, since the pneumatic diverter further has a position sensor, by providing the position sensor on the inner peripheral wall of the outlet of the pneumatic diverter 40 where the air bag or the pneumatic tube clamp valve is provided and by correspondingly providing the position sensor on the inner wall of the outlet communicated with the sewage pipe, the expanded position of the air bag or the pneumatic tube clamp valve can be detected in real time one-to-one and the detection signal can be transmitted to the controller to be detected, so that even if a certain air bag or pneumatic tube clamp valve is blocked or damaged by air leakage, the problem of which air bag or pneumatic tube clamp valve can be detected rapidly and specifically can be solved:

after the air source pressure is normal and a certain air bag or pneumatic tube pinch valve is not expanded according to requirements, the fault can be quickly checked;

after the fault that the air source detects air leakage all the time and the air source is inflated all the time but can not reach normal pressure occurs, the air bag or pneumatic tube pinch valve or pipeline air leakage can be judged, and the air bag or pneumatic tube pinch valve is judged to have a problem according to the condition of the position sensor.

The present invention is not limited to the above-described embodiments, and it will be apparent to those skilled in the art that various modifications and improvements can be made without departing from the principle of the present invention, and such modifications and improvements are also considered to be within the scope of the present invention. Those not described in detail in this specification are within the skill of the art.

Claims

1. A pipe diversion system of a one-in-two-out configuration for diverting fluid in a drain, comprising:

a compressed gas source for providing compressed gas;

a pneumatic flow divider is arranged on the upper portion of the air cylinder,

and after receiving the measurement information, the controller controls the control valve to act according to the measurement information to switch on the compressed air source and the pneumatic control assembly, the pneumatic control assembly acts to control the cut-off and the switching on of the intercepting channel, so that the sewage and/or the initial rainwater in the drainage pipe are/is distributed to the sewage pipe or the initial rainwater pipe, and the middle and later stage rainwater in the drainage pipe is distributed to the rainwater pipe.

2. The pipe branching system of a one-in-two-out configuration as claimed in claim 1, wherein:

wherein the pneumatic control component is an air bag or a pneumatic pipe clamp valve, the outlet of the air bag or the pneumatic pipe clamp valve is communicated with the gas conveying main pipe through a gas conveying branch pipe,

when the air bag or the pneumatic pipe clamp valve is inflated, the cut-off channel is in a cut-off state,

when the air bag or the pneumatic pipe clamp valve is not inflated and is in a natural state, the intercepting channel is in a conducting state.

3. The pipe branching system of a one-in-two-out configuration as claimed in claim 2, wherein:

when the horizontal height of the drain pipe is higher than that of the sewage pipe or the initial rain pipe, the pneumatic control assembly is arranged and arranged at the first outlet, and sewage and/or initial rainwater discharged by the first outlet fall into the sewage pipe or the initial rain pipe by gravity.

4. A one-in-two-out pipe branching system as claimed in claim 2, wherein:

when the horizontal height of the drain pipe is lower than that of the sewage pipe or the primary rain pipe, the pneumatic control assembly is arranged, the pneumatic flow divider further comprises a storage pool, a connecting pipe and a water pump, the horizontal height of the connecting pipe is lower than that of the drain pipe, the first water outlet is connected with the storage pool through the connecting pipe, the pneumatic control assembly is arranged on the connecting pipe, the storage pool is used for storing sewage and/or primary rain water, and the water pump pumps the sewage and/or primary rain water in the storage pool into the sewage pipe or the primary rain pipe.

5. A pipe branching system of a one-in-two-out structure as claimed in claim 3 or 4, wherein:

the system is provided with a control valve and a gas conveying main pipe, and the air bag or pneumatic pipe clamping valve is communicated with the gas conveying main pipe through the gas conveying branch pipe.

6. The pipe branching system of a one-in-two-out configuration as claimed in claim 5, wherein:

the method comprises the following steps that a pipe network area is divided into a plurality of areas, each area is provided with a control valve, a gas conveying main pipe and a plurality of pneumatic flow dividers, an air bag or a pneumatic pipe clamping valve of each pneumatic flow divider is communicated with the gas conveying main pipe through the gas conveying branch pipe, and a controller controls all the air bags or the pneumatic pipe clamping valves in the areas to be opened and closed simultaneously.

7. The pipe branching system of a one-in-two-out configuration as claimed in claim 2, wherein:

the drainage pipe is a rainwater pipe in a split system or a confluence pipe in a confluence system.

8. The pipe branching system of a one-in-two-out configuration as claimed in claim 2, wherein:

wherein the compressed air source is an air compressor, the control valve is an electromagnetic valve combination or a two-position three-way reversing valve,

and after receiving the measurement information sent by the measuring instrument again, the controller controls the control valve to act again according to the measurement information, so that the gas conveying main pipe is communicated with the atmosphere, namely, compressed air in the air bag or the pneumatic pipe clamp valve is evacuated to be in a natural state, and the cut-off channel is communicated.

9. The pipe branching system of a one-in-two-out configuration as claimed in claim 2, wherein:

when the sewage pipe or the primary rain pipe is at the same level without height difference with the connecting pipe,

10. The pipe branching system of a one-in-two-out configuration as claimed in claim 9, wherein:

the method comprises the following steps that a pipe network area is divided into a plurality of areas, each area is provided with two control valves, two gas conveying main pipes and a plurality of pneumatic flow dividers, all first air bags or pneumatic pipe clamp valves in the area are respectively communicated with the first gas conveying main pipes through the gas conveying branch pipes, all second air bags or pneumatic pipe clamp valves in the area are respectively communicated with the second gas conveying main pipes through the gas conveying branch pipes, and a controller controls all the first air bags or pneumatic pipe clamp valves or all the second air bags or pneumatic pipe clamp valves to be communicated with the atmosphere or the gas source through controlling the first control valves or the second control valves according to measurement signals.

11. The pipe branching system of a one-in-two-out configuration as claimed in claim 1, wherein:

wherein the measuring instrument comprises one or more of a rain gauge, a timer, a water quality monitor and a liquid level meter,

12. The pipe branching system of a one-in-two-out configuration as claimed in claim 1, wherein:

wherein the pneumatic diverter further has a position sensor,

the position sensor is arranged on the inner wall of the installation pipe and used for detecting the expansion position of the air bag or the pneumatic pipe clamp valve.

13. The pipe branching system of a one-in-two-out configuration as claimed in claim 1, wherein:

14. The pipe branching system of a one-in-two-out configuration as claimed in claim 13, wherein:

the method comprises the following steps that a pipe network area is divided into a plurality of subareas, each subarea is provided with two control valves, two gas conveying main pipes and a plurality of pneumatic flow dividers, one gas inlet hole of each cylinder in each subarea is respectively communicated with a first gas conveying main pipe through a gas conveying branch pipe, and the other gas hole of each cylinder in each subarea is respectively communicated with a second gas conveying main pipe through a gas conveying branch pipe.

15. The pipe branching system of a one-in-two-out configuration as claimed in claim 1, wherein:

the gas conveying main pipe is arranged on the inner wall of the upper part of the sewage pipe and communicated with the pneumatic control assembly through the gas conveying branch pipe.

16. A pipeline reposition of redundant personnel method of structure of advancing two is used for sewage and rainwater in the drain pipe of a plurality of districts in the region to correspond reposition of redundant personnel to sewage pipe or first rain pipe and rainwater pipe, its characterized in that:

setting a threshold value, and when the measurement information does not reach the threshold value, controlling the closure channel to be conducted by the pneumatic control assembly to shunt initial rainwater in the drainage pipe to the sewage pipe or the initial rainwater pipe;

when the measurement information reaches a threshold value, the pneumatic control assembly controls the cut-off channel to be cut off, and middle and later stage rainwater in the drainage pipe is shunted to the rainwater pipe.

17. The pipe splitting method of a one-in two-out structure according to claim 15, wherein when the measurement information is a rainfall measured using a rain gauge: