CN108915065A

CN108915065A - One into the three pipeline shunt system gone out and shunt method

Info

Publication number: CN108915065A
Application number: CN201810990116.2A
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: 2018-11-30

Abstract

One into three goes out the pipeline shunt system of structure, including：Compressed gas source；At least two control valves, import are connected with compressed gas source；The outlet of at least two gases conveying main pipes 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, third exports, first outlet is used for connection import and sewage pipe, and second outlet is for connection import with drainpipe, third outlet for being connected to import and first rain pipe；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 three-outlet pipeline shunting system and method

Technical Field

The invention relates to municipal rainwater and sewage diversion, in particular to a one-inlet three-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 three 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 three-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 two control valves, the inlet of which is communicated with the compressed air source,

at least two gas conveying main pipes which are communicated with the outlets of the control valves and are used for conveying 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 two pneumatic control assemblies, the flow divider body is arranged on a drain pipe pipeline, the flow divider body is provided with an inlet, a first outlet, a second outlet and a third outlet, the first outlet is used for communicating the inlet with a sewage pipe to form a flow-stopping channel, the first pneumatic control assembly is arranged in the flow-stopping channel, the second outlet is used for communicating the inlet with the drain pipe at the downstream of the flow divider body, and the third outlet is used for communicating the inlet with the initial rain pipe;

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,

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 in the drainage pipe is shunted to the sewage pipe, initial rainwater in the drainage pipe is shunted to the initial rainwater pipe, and middle and later stage rainwater in the drainage pipe is shunted to the rainwater pipe.

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

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 tube pinch valve is inflated and expanded, the first outlet, the second outlet and the third outlet are in a cut-off state,

when the air bag or the pneumatic tube pinch valve is not inflated and is in a natural state, the first outlet, the second outlet and the third outlet are in a conducting state.

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

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.

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

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, each air bag or pneumatic pipe clamping valve of each pneumatic flow divider is communicated with the gas conveying main pipes through the gas conveying branch pipes, and a controller controls all corresponding air bags or pneumatic pipe clamping valves in the areas to be opened and closed simultaneously.

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

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, and therefore the first outlet and the third outlet are in a cut-off 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 from the compressed air source, the gas delivery 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 first outlet or the third outlet is in a conducting state.

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 three: a first gas conveying main pipe, a second gas conveying main pipe and a third gas conveying main pipe,

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

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

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

the pipe network area is divided into a plurality of subareas, each subarea is provided with three control valves, three gas conveying main pipes and a plurality of pneumatic flow dividers, all the first air bags or pneumatic tube pinch valves in the sheet area are respectively communicated with the first gas conveying main pipe through the gas conveying branch pipes, all the second air bags or pneumatic tube clamp valves in the area are respectively communicated with a second gas conveying main pipe through the gas conveying branch pipes, all the third air bags or pneumatic tube pinch valves in the sheet area are respectively communicated with a third gas conveying main pipe through the gas conveying branch pipes, and the controller controls all the first air bags or the pneumatic pipe clamp valves or all the second air bags or the pneumatic pipe clamp valves and all the third air bags or the pneumatic pipe clamp valves to be communicated with the atmosphere or the air source by controlling the first control valve or the second control valve and the third control valve according to the measurement signals.

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.

wherein the pneumatic diverter further has a position sensor,

the position sensor is arranged on the inner wall of the sewage intercepting channel and is used for detecting the expansion position of the air bag or the pneumatic tube pinch valve.

the pneumatic control assembly comprises an air cylinder and a flashboard assembly, the flashboard assembly is installed in the flow divider body, the pneumatic control assembly installed in the intercepting channel comprises a first air cylinder and a first flashboard assembly, the pneumatic control assembly installed in the initial rain diversion channel comprises a second air cylinder and a second flashboard assembly, the first air cylinder drives the first flashboard assembly to switch between a first position and a second position, the first flashboard assembly blocks the second outlet and the third outlet under the first position, the inlet is communicated with the first outlet, the first flashboard assembly blocks the first outlet under the second position, the inlet is communicated with the second outlet or the third outlet, the second flashboard assembly blocks the second outlet under the first position, and the inlet is communicated with the third outlet, the second flashboard assembly blocks the third outlet at the second position, and the inlet is communicated with the second outlet;

correspondingly, two gas conveying main pipes are arranged: the first gas conveying main pipe is connected with the first cylinder through two gas conveying branch main pipes, the second gas conveying main pipe is connected with the second cylinder through two gas conveying branch main pipes, and the two gas conveying branch main pipes are connected with the gas source through the control valve;

two control valves are correspondingly arranged: the first control valve is used for controlling the first air cylinder to extend and contract so as to control the first flashboard assembly to be switched between a first position and a second position, and the second control valve is used for controlling the second air cylinder to extend and contract so as to control the second flashboard assembly to be switched between the first position and the second position.

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

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-three-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, the pneumatic control assembly acts to control the second outlet and the third outlet to be closed, the first outlet is in a conduction state, and sewage in the drain pipe is shunted to the sewage 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, stopping the first outlet and the second outlet controlled by the pneumatic control assembly, and switching on the third outlet to shunt initial rainwater in the drainage pipe to the initial rainwater pipe;

when the measurement information reaches the threshold value, the first outlet and the third outlet controlled by the pneumatic control assembly are cut off, the second outlet is conducted, and middle and later stage rainwater in the drainage pipe is shunted to the rainwater pipe.

The invention provides a pipeline shunting method of a one-inlet three-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 a sunny day, the controller controls the pneumatic control assembly to act according to zero rainfall to control the second outlet and the third outlet to be cut off, the first outlet is in a conduction state, and sewage in the drainage pipe is diverted to the sewage pipe;

when rainfall enters the diversion system in rainy days, 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 first outlet and the second outlet are cut off, the third outlet is conducted, and the initial rainwater in the drainage pipe is diverted to the initial rainwater pipe;

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 pneumatic control assembly is changed to control the first outlet and the third outlet to be cut off, and the second outlet is communicated;

the inlet is communicated with the rainwater pipeline so as to correspondingly divide the fluid at the inlet into the rainwater pipe.

The invention has the following functions and beneficial effects: according to the pipeline shunting system with the one-inlet and three-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 shunting system with a one-in three-out structure in a first embodiment of the present invention;

fig. 2 is a schematic structural diagram of a pipeline shunting system with a one-in-three-out structure in a second embodiment of the present invention;

FIG. 3 is a cross-sectional view along AA of FIG. 2;

FIG. 4 is a cross-sectional view taken along line BB of FIG. 2;

FIG. 5 is a schematic structural view of a one-in-three-out pipe branching system according to a fifth embodiment, in which cylinder and shutter assemblies are used as pneumatic control assemblies; and

fig. 6 is a schematic structural diagram of a cylinder and a shutter assembly in a one-in-three-out pipe branching system according to the fifth embodiment.

Illustration of the drawings:

a rainwater pipe 2, a diversion well 3, a sewage pipe 4, a drain pipe 5 and a primary rainwater pipe 6;

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 third outlet 44, a pneumatic control assembly 45, a first bladder 451, a second bladder 452, a third bladder 453;

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 shunting system with a one-in three-out structure in a first embodiment of the present invention.

Referring to fig. 1, an embodiment of the present invention provides a zonal pipe diversion system for diverting sewage and rainwater in drains of a plurality of zones in an area, wherein the drains may be diversion rainwater pipes or confluence pipes, such as a rainwater pipe 2, a sewer pipe or primary rainwater 6, and a pipe diversion system with a one-in-three-out structure, as shown in fig. 1. Wherein,

the pipeline shunting system with the one-inlet-three-outlet structure is used for shunting the fluid in the drainage pipe.

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 compressed air source 10, which is an air compressor in this embodiment, is used to provide compressed air.

The inlets of the at least two control valves 20 are 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 valves are electromagnetic valve combinations or two-position three-way reversing valves, in the embodiment, the two-position three-way electromagnetic reversing valve 21 is used as the control 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 two gas transmission main pipes 30 are communicated with the outlet of the control valve 20 and used for transmitting compressed gas, and the gas transmission main pipes 30 are arranged on the inner wall of the upper part of the sewage pipe 4 and communicated with the pneumatic flow divider 40 through gas transmission branch pipes. 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 a cylinder type gate plate structure, four gas transmission trunk pipes 30 are provided, and divided into two groups, each group corresponding to one cylinder type gate plate.

A plurality of pneumatic diverters 40, disposed on the drain line, include a diverter body having an inlet 41 communicating with the drain line and first and second outlets 42 and 43, respectively communicating with the sewer, storm water line, and incipient rain line, and a third outlet 44, and at least one pneumatic control assembly 45 disposed in the outlet communicating with the sewer. .

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

The pneumatic control assembly 45, which may be an air bladder or air pillow, in this embodiment a drum-shaped air bladder, is disposed within the outlet and secured by a cord.

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 45 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.

And a controller 50 electrically connected to the control valve 20 for controlling the control valve 20, which is provided in a 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:

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 first outlet, the second outlet and the third outlet are changed in on-off states to cause the inlet to be switched on or off with the sewage pipe or the first rain pipe and the rain pipe, so that the fluid at the inlet is correspondingly distributed to the sewage pipe or the first 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

In addition to the first embodiment, as shown in fig. 1, in this case, when the level of the sewer pipe 4 and the primary rain pipe is lower than the level of the rain 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 at the upstream of the pneumatic diverter through a short connecting pipe, the second outlet of the diverter body is connected with the connecting pipe connected with the rain pipe at the downstream of the pneumatic diverter through a short connecting pipe, the first outlet of the diverter body extends downwards, the third outlet of the diverter body extends downwards to communicate with the primary rain pipe, and the first outlet 42 connected with the sewer pipe 4 is opposite to the second outlet 43 communicated with the rain pipe, The third outlet connected to the primary rain pipe is upstream, the first outlet 42 connected to the sewage pipe 4 is upstream with respect to the other third outlet connected to the rough rain pipe, correspondingly, the number of the gas delivery trunk pipes 30 is two, the number of the control valves 20 is two, and the corresponding air bags 44 in the pneumatic splitter 40 are also two and are provided in the first outlet 42 connected to the sewage pipe and the third outlet connected to the rough rain 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. 1, the air bag is installed in the shunt body through a mounting assembly, the mounting assembly comprises a mounting frame G and two hanging rods H, 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 upper position and the lower 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 third outlet has two states:

when the first 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, so that the drainage pipe is communicated with the sewage pipe communicated with the outlet provided with the air bag, namely the fluid in the drainage pipe is directly discharged into the sewage pipe, and domestic sewage is discharged into the sewage pipe;

when the first air bag is inflated and expanded and the third air bag is not inflated and is in a natural state, the first outlet is in a cut-off state, and the third outlet is in a conducting state, namely, the fluid in the drainage pipe is directly drained into the primary rain pipe at the moment, and the domestic sewage is drained into the primary rain pipe

When the first air bag and the third air bag are inflated, the first outlet and the third outlet are in a cut-off state, the inlet can only be communicated with the second outlet, namely, the fluid in the drainage pipe can only be drained into the rainwater pipe through the outlet communicated with the rainwater pipe, and the middle-period and later-period rainwater is drained 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 is 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-three-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 1, the sewage pipe and a primary rainwater pipe are arranged below the drainage pipes, and when a first outlet of the pneumatic flow divider is communicated with the sewage pipe, a second outlet of the pneumatic flow divider is communicated with the rainwater pipe, and a third outlet of the pneumatic flow divider is communicated with the primary 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.

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 first outlet to be in a conduction state, and the entering sewage can enter the sewage pipe through the intercepting channel.

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

and fourthly, the control valve is changed to control the first outlet and the third outlet to be cut off after the action of the pneumatic control assembly, the second outlet is communicated, and the inlet is communicated with a rainwater pipeline, so that the fluid at the inlet is correspondingly distributed to 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. 2 is a schematic structural diagram of a pipeline shunting system with a one-in-three-out structure in a second embodiment of the present invention.

FIG. 3 is a cross-sectional view along AA of FIG. 2.

Fig. 4 is a cross-sectional view taken along the direction BB of fig. 2.

As shown in fig. 3 and 4, the difference between this embodiment and the first embodiment is that the sewage pipe, the initial rain pipe and the pneumatic splitter are not at the same level, and natural splitting cannot be performed by means of height difference. For this reason, in this case, three air bags are required to be disposed in the pneumatic diverter for the diversion control: a first air bag is arranged in a first outlet in communication with a sewage pipe, a second air bag is arranged in a second outlet in communication with the storm drain, a third air bag is arranged in a corresponding third outlet in communication with the storm drain, three control valves are correspondingly arranged: the number of the gas transmission main pipes is also three: the first control valve controls the first gas conveying main pipe to control inflation and deflation of the first air bag, the second control valve controls the second gas conveying main pipe to control inflation and deflation of the second air bag, and the third control valve controls the third gas conveying main pipe to control inflation and deflation of the third air bag. As shown in fig. 3 and 4.

As shown in fig. 3 and 4, the inlet 41 and the first outlet 42 of the pneumatic separator 40 and the second and third outlets 43 and 44 are cross-shaped in one plane, and the first outlet 42, the second outlet 43, and the third outlet 44 are provided with the first bladder 451, the second bladder 452, and the third bladder 453, respectively. All of the first air cells 451 of the plurality of pneumatic diverters 40 of the system are respectively communicated with the first gas delivery main through gas delivery branched pipes, all of the second air cells 452 of the plurality of pneumatic diverters 40 are respectively communicated with the second gas delivery main through gas delivery branched pipes, and all of the third air cells 452 of the plurality of pneumatic diverters 40 are respectively communicated with the third gas delivery main through gas delivery branched pipes. The controller controls the control valve to act, controls all the first air bags and all the third air bags to be inflated and opened simultaneously and controls all the second air bags to be deflated and to recover the natural state at the same time according to the monitoring information, or controls all the first air bags to be deflated and to recover the natural state simultaneously and controls all the second air bags and all the third air bags to be inflated and opened simultaneously or controls all the first air bags and all the second air bags to be inflated and opened simultaneously and controls all the third air bags to be deflated and to recover the natural state.

In a specific situation, in sunny days, the control valve acts to connect the compressed air source and the pneumatic control assembly, the pneumatic control assembly acts to control the inflation of the second air bag and the third air bag corresponding to the second outlet and the third outlet to be in a cut-off state, the first air bag corresponding to the first outlet naturally deflates to be in a conducting state, and sewage in the drainage pipe is shunted to the sewage pipe;

when the measurement information does not reach the threshold value, the pneumatic control assembly acts to control the first air bag and the second air bag corresponding to the first outlet and the second outlet to inflate to be in a cut-off state, the third air bag corresponding to the third outlet naturally deflates to be in a conducting state, and initial rainwater in the drainage pipe is shunted to the initial rainwater pipe;

when the measurement information reaches a threshold value, the pneumatic control assembly acts to control the first air bag and the third air bag corresponding to the first outlet and the third outlet to inflate to be in a cut-off state, the second air bag corresponding to the second outlet deflates naturally to be in a conducting state, and middle and later stage rainwater in the drainage pipe is shunted to the rainwater pipe.

Example four

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, the pneumatic control assembly (air bag) is provided, the pneumatic flow divider further includes a storage tank, 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.

EXAMPLE five

Fig. 5 is a schematic structural diagram of a one-in-three-out pipe branching system according to a fifth embodiment, in which a cylinder and a shutter assembly are used as a pneumatic control assembly.

Fig. 5 is a schematic structural diagram of a cylinder and a shutter assembly in a one-in-three-out pipe branching system according to 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 setting up two shunts, the corresponding two tunnel gas conveying main pipes that set up: the first gas conveying main pipe is connected with the first cylinder through two gas conveying branch main pipes, the second gas conveying main pipe is connected with the second cylinder through two gas conveying branch main pipes, and the two gas conveying branch main pipes are connected with the gas source through the control valve;

Referring to fig. 6, a crank F and a transmission shaft G are arranged between the cylinder D and the shutter assembly E, one end of the crank is rotatably connected with a cylinder piston rod D-1, the other end of the crank is fixedly connected with one end of the transmission shaft, and the shutter 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 46, when the pneumatic diverter 40 comprises an air bag, the position sensor is arranged on the inner peripheral wall of the outlet of the pneumatic diverter 40 provided with the air bag, and the position of the expansion of the air bag can be detected in real time in a one-to-one manner by correspondingly arranging the position sensor on the inner wall of the outlet communicated with the sewer pipe.

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-three-out configuration for diverting fluid in a drain, comprising:

a compressed gas source for providing compressed gas;

at least two control valves for controlling the on-off of the gas path,

the gas conveying main pipes are communicated with the outlets of the corresponding control valves and used for conveying compressed gas, and the control valves are used for controlling the connection or the disconnection of the corresponding gas conveying main pipes and a compressed gas source;

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

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

2. The pipe branching system of a one-in-three-out structure 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 corresponding gas conveying main pipe through a gas conveying branch pipe,

when the air bag or the pneumatic pipe clamp valve is inflated, the air bag or the pneumatic pipe clamp valve is closed corresponding to the cut-off channel and/or the initial rain diversion channel;

when the air bag or the pneumatic pipe clamp valve is not inflated and is in a natural state, the corresponding cut-off channel and/or the initial rain diversion channel are communicated.

3. The pipe branching system of an in-and-out construction as set forth in claim 2, wherein:

when the horizontal height of the drain pipe is higher than the horizontal height of the sewage pipe and the initial rain pipe, two air bags or pneumatic pipe clamp valves, two control valves and two gas conveying main pipes are arranged, the air bags or the pneumatic pipe clamp valves are respectively arranged at one end, close to the first outlet, in the intercepting channel and one end, close to the third outlet, of the initial rain shunt, and the sewage discharged from the first outlet and the initial rain water discharged from the third outlet are respectively controlled to fall into the sewage pipe and the initial rain pipe through gravity.

4. A pipeline splitting system of a one-in-three-out configuration as claimed in claim 3, wherein:

the method comprises the 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, each pneumatic flow divider is installed on an air bag or a pneumatic pipe clamping valve on a cut-off channel, the gas conveying main pipes are communicated with the pneumatic pipe clamping valve respectively through the gas conveying branch pipes, each pneumatic flow divider is installed on an air bag or a pneumatic pipe clamping valve on an initial rain flow dividing channel, the pneumatic pipe clamping valve is communicated with the other gas conveying main pipe respectively through the gas conveying branch pipes, and a controller controls the air bags or the pneumatic pipe clamping valves on all cut-off channels in the areas to be opened and closed simultaneously and the air bags or the pneumatic pipe clamping valves on all initial rain flow dividing channels to be opened and closed.

5. The pipe branching system of a one-in-three-out structure as claimed in claim 1, wherein:

6. The pipe branching system of an in-and-out construction as set forth in claim 2, wherein:

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, and therefore the corresponding first outlet or the corresponding third outlet is in a cut-off state,

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 corresponding first outlet or third outlet is in a communicated state.

7. The pipe branching system of an in-and-out construction as set forth in claim 2, wherein:

the number of the corresponding air bags or pneumatic tube clamping valves in the pneumatic flow divider is also three: a first air bag or pneumatic tube pinch valve is arranged in the intercepting channel, a second air bag or pneumatic tube pinch valve is arranged in a pipeline communicated with the second outlet and close to one end of the second outlet, a third air bag or pneumatic tube pinch valve is arranged in the primary rain diversion channel,

8. The pipe branching system of an in-and-out construction as claimed in claim 7, wherein:

9. The pipe branching system of a one-in-three-out structure as claimed in claim 1, wherein:

10. 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,

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

12. The pipe branching system of a one-in-three-out configuration as claimed in claim 11, 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-position four-way control valves, two gas conveying branch pipes, four gas conveying branch pipes and a plurality of pneumatic flow dividers, all first cylinders in each area are respectively connected with the corresponding gas conveying air branch pipes through the gas conveying branch pipes, all first flashboard assemblies of each area are controlled to be located at a first position or a second position, all second cylinders in each area are respectively connected with the corresponding gas conveying air branch pipes through the gas conveying branch pipes, and all second flashboard assemblies of each area are controlled to be located at the first position or the second position.

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

14. A pipeline reposition of redundant personnel method of structure of going into three 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:

15. The pipe splitting method of an in-out structure according to claim 16, wherein when the measurement information is a rainfall measured using a rain gauge: