CN109339187A

CN109339187A - A diversion system and control method with a pneumatic diversion well

Info

Publication number: CN109339187A
Application number: CN201811279023.5A
Authority: CN
Inventors: 周超; 李习洪
Original assignee: Wuhan Shengyu Drainage Systems Co Ltd
Current assignee: Wuhan Shengyu Drainage Systems Co Ltd
Priority date: 2018-08-28
Filing date: 2018-10-30
Publication date: 2019-02-15

Abstract

The present invention provides a kind of separate system with pneumatic shunting well, for being shunted to the fluid in drainpipe, it include: compressed gas source, air shooter, pneumatic shunting well, pneumatic shunting well includes well body structure and the import that is arranged in the well body structure, first outlet pipe, second outlet pipe and the pneumatic cut-off equipment being set on the second outlet pipe are the second pneumatic cut-off equipment, the wherein drainpipe of the pneumatic shunting well upstream of inlet communication, first outlet pipe is connected to the rain pipe or natural water in pneumatic shunting well downstream, second outlet pipe is connected to sewage pipe or sewage treatment facility or storage pond or first rain pipe or storage pond or initial rainwater treatment facility；Control valve comprising the second control valve is set on air shooter, and the second control valve controls being filled and deflated by for the second pneumatic cut-off equipment respectively, for controlling cut-off, the conducting of corresponding second outlet pipe；Wherein, drainpipe is combined system, the drainpipe of separate system or mixed flow region or the pipeline arranged before mouth before natural water.

Description

Flow distribution system with pneumatic flow distribution well and control method

Technical Field

The invention relates to rainwater and sewage diversion, in particular to a diversion system with a pneumatic diversion well and a control method, and belongs to the technical field of civil buildings and water supply and drainage.

Background

At present, in a pneumatic flow dividing well, a flow abandoning well and an intercepting well system, the system consists of a water inlet pipe, a water outlet pipe and a sewage pipe, domestic sewage or initial rainwater and later rainwater in a drain pipe are divided, wherein the domestic sewage or the initial rainwater is intercepted to the 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 rainwater or the middle and later rainwater is directly discharged to natural water.

In reality, devices for realizing the cut-off and conduction functions in a pneumatic flow dividing well, a flow abandoning well and an intercepting well generally adopt electric control or hydraulic control. However, in reality, the following problems exist in the electric control: 1. flammable and explosive biogas is generally generated in a closed pipeline and a sewage environment, and a general electric control device is easy to explode and unsafe, so that an electric control part in contact with the biogas is required to have an explosion-proof function when the electric control device is applied, and therefore, an electric control system is expensive and high in cost; 2. under the environment of severe stormy weather, the condition of power failure can occur, and equipment in a pneumatic diversion well, a flow abandoning well or a intercepting well can not work normally after the power failure, so that the conditions of urban waterlogging and the like can occur; 3. under the condition of heavy rain, the flooding conditions of the pneumatic diversion well, the abandoning well and the intercepting well are between hours and days, so that the redundancy and the cost are too high by adopting an electric control device which is completely suitable for underwater use, and the flooding capacity of a common IP 68-grade electric control device is insufficient within hours; 4. the device of the electric control system uses non-safe voltage, and the high voltage is unsafe and easy to have accidents; 5. after the electrical equipment is flooded, the electric leakage is easy to occur, and the electric shock danger exists; 6. the electric control equipment (a gate and a weir gate) needs an upward or downward stroke during operation, the urban ground is exposed, the urban landscape beautiful traffic is influenced, and the excavation area is large during construction; 7. the electric control system uses 380V three-phase power, and a municipal power grid cannot supply power, so that the problem of difficulty in power supply is solved.

Particularly, for the occasion requiring the concealed installation, the power supply and the generated cost of the electric control system are not easy to be solved. Hydraulic control also has certain problems: the hydraulic station uses a high-pressure oil pipe, and the cost of the hydraulic station and the high-pressure oil pipe is high; the high-pressure oil pipe is broken and leaks oil to pollute the environment; after the electrical equipment is flooded, the electric leakage is easy to occur, and the electric shock danger exists; the electric control equipment (the gate and the weir gate) needs an upward or downward stroke during operation, the urban ground is exposed, the urban landscape beautiful traffic is influenced, and the excavation area is large during construction. In addition, in the prior art, when a living district, a road district, a discharge port and the like are treated, only the sewage and rainwater conditions of the current position and the current area are considered, resource sharing is not carried out, and the treatment cost is high.

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 realization of 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 one-inlet two-outlet subarea flow system arranges a main pneumatic flow dividing well on the drainage pipe, the general control is carried out on a gas conveying main pipe, and the gas conveying branch pipe is arranged for expansion, thereby skillfully solving the problems of ensuring the safety and 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 and convenient expansion, The requirement of convenient dilatation. For a cell, a new pneumatic flow-dividing well is directly arranged in a drain pipe of the cell to lead out a corresponding pipeline to be connected with a rainwater pipe, a sewage pipe or a sewage treatment facility or a regulation pool or an initial rainwater pipe or an initial rainwater treatment facility, so that the new cell can be quickly and conveniently expanded by arranging the new pneumatic flow-dividing well and connecting a gas conveying main pipe laid in the drain pipe with a conveying branch pipe to realize flow dividing control.

Therefore, the invention provides the following technical scheme:

a diversion system with a pneumatic diversion well for diverting fluid in a drain, comprising:

a compressed gas source for providing compressed gas;

the gas conveying pipe is used for conveying gas;

the pneumatic flow-dividing well is provided with a flow-dividing well,

the pneumatic flow dividing well comprises a well body structure, an inlet, a first water outlet pipe, a second water outlet pipe and a pneumatic cut-off device, wherein the inlet, the first water outlet pipe and the second water outlet pipe are at least arranged on the well body structure, the pneumatic cut-off device is a second pneumatic cut-off device, the inlet is communicated with a water discharge pipe on the upstream of the pneumatic flow dividing well, the first water outlet pipe is communicated with a rainwater pipe or a natural water body on the downstream of the pneumatic flow dividing well, and the second water outlet pipe is communicated with a sewage pipe or a sewage treatment facility or a regulation pool or a primary rainwater pipe or a regulation pool or an;

the control valve comprises a second control valve connected with the gas conveying pipe, and the second control valve is used for controlling the charging and discharging of the second pneumatic cut-off device respectively and controlling the cut-off and the conduction of the corresponding second water outlet pipe;

the drainage pipe is a confluence pipe of a confluence system cell, a rainwater pipe of a shunt system cell or a drainage pipe of a rainwater pipe mixed with sewage of the shunt system cell, or a drainage pipeline before a discharge opening close to the natural water body.

On the basis of the scheme, the inlet height of the first water outlet pipe is higher than the inlet height of the second water outlet pipe; or,

the first water outlet pipe is further provided with a first pneumatic cut-off device, the control valve further comprises a first control valve, the first control valve is connected with the gas conveying pipe, and the first control valve controls the inflation and deflation of the first pneumatic cut-off device and is used for controlling the cut-off and the conduction of the first water outlet pipe.

On the basis of the scheme, the system also comprises a measuring instrument and a controller, wherein the measuring instrument and the control valve are respectively in signal connection with the controller, the controller controls the control valve to act according to a measuring signal measured by the measuring instrument, wherein,

when the pneumatic diversion well is provided with a second pneumatic cut-off device:

the controller is used for controlling the second control valve to act, so that a second water outlet pipe is communicated when the second pneumatic cut-off device deflates, domestic sewage and/or initial rainwater entering the pneumatic diversion well are diverted to a sewage pipe or a sewage treatment facility or a regulation and storage tank or an initial rainwater pipe or a regulation and storage tank or an initial rainwater treatment facility, so that the second pneumatic cut-off device inflates the second water outlet pipe to be cut off, and rainwater entering the pneumatic diversion well or middle and later stage rainwater are diverted to a rainwater pipe or a natural water body;

when the pneumatic diverter well is provided with a first pneumatic cut-off device and a second pneumatic cut-off device:

the controller is used for controlling the first control valve and the second control valve to act respectively, so that the second water outlet pipe for air discharging of the second pneumatic cut-off device is switched on, the first water outlet pipe for air inflation of the first pneumatic cut-off device is switched off, domestic sewage and/or initial rainwater entering the pneumatic diversion well is diverted to a sewage pipe or a sewage treatment facility or a regulation pool or an initial rainwater pipe or a regulation pool or an initial rainwater treatment facility, the first water outlet pipe for air discharging of the first pneumatic cut-off device is switched on, the second water outlet pipe for air inflation of the second pneumatic cut-off device is switched off, and rainwater entering the pneumatic diversion well or middle and later stage rainwater is diverted to a rainwater pipe or a natural water body.

On the basis of the scheme, at least two pneumatic flow dividing wells are arranged; wherein,

the gas conveying pipeline comprises a second gas conveying main pipe and a plurality of gas conveying branch pipes, second pneumatic cut-off devices of all the pneumatic diversion wells are respectively communicated with the second gas conveying main pipe through the gas conveying branch pipes, the second control valves are connected with the second gas conveying main pipe and are used for controlling the second pneumatic cut-off devices of all the pneumatic diversion wells to be inflated or deflated simultaneously;

the gas conveying pipeline comprises a first gas conveying main pipe, a second gas conveying main pipe, a gas conveying main pipe and a plurality of gas conveying branch pipes, first pneumatic cut-off devices of all pneumatic flow dividing wells are communicated with the first gas conveying main pipe through the gas conveying branch pipes respectively, second pneumatic cut-off devices of all pneumatic flow dividing wells are communicated with the second gas conveying main pipe through the gas conveying branch pipes respectively, a first control valve is connected with the first gas conveying main pipe and used for controlling the first gas cut-off devices of all pneumatic flow dividing wells to be inflated or deflated simultaneously, a second control valve is connected with the second gas conveying main pipe and used for controlling the second pneumatic cut-off devices of all pneumatic flow dividing wells to be inflated or deflated simultaneously.

On the basis of the scheme, when the second water outlet pipe is communicated with the storage tank, the second water outlet pipes of the plurality of pneumatic flow dividing wells are connected with one storage tank.

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

and/or the pneumatic cut-off device is a pneumatic pipe clamp valve or an air bag;

and/or the pneumatic cut-off device is arranged in the shunt well and positioned at the beginning of the first water outlet pipe and the second water outlet pipe, or arranged on the pipeline of the first water outlet pipe and the second water outlet pipe.

On the basis of the scheme, the measuring instrument comprises one or more of a rain gauge, a flow meter, a water meter, a timer, a water quality detector and a liquid level meter,

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

On the basis of the scheme, the system further comprises a control center, and the controller is provided with a communication module communicated with the control center;

the control center sends an operation instruction to remotely control the controller and controls the control valve to be opened and closed through the controller; and/or the control center collects, displays and stores the measurement information collected by the measuring instrument through the controller and analyzes the measurement information.

On the basis of the scheme, the control method of the diversion system with the pneumatic diversion well comprises the diversion system with the pneumatic diversion well according to claim 3, and is used for correspondingly diverting the sewage, the initial rainwater and the rainwater in the drainage pipe or the middle and later stage rainwater: the method comprises a first mode and a second mode, wherein the measuring device continuously collects measuring information, the controller sets a first threshold value, and the controller executes the first mode or the second mode according to the comparison between the collected measuring information and the first threshold value, wherein the first mode or the second mode is executed

When the measurement information does not reach a first threshold value, a first mode is selected:

when the pneumatic diversion well is provided with a second pneumatic cut-off device, the controller controls a second control valve to act, the second pneumatic cut-off device is communicated with air to be deflated, the second water outlet pipe is communicated, and sewage and/or initial rainwater entering the pneumatic diversion well is diverted to the sewage pipe or sewage treatment facility or the initial rainwater pipe or the initial rainwater treatment facility;

when the pneumatic diversion well is provided with a first pneumatic cut-off device and a second pneumatic cut-off device, the controller respectively controls the first control valve and the second control valve to respectively act, the second pneumatic cut-off device is communicated with air to be deflated, the second water outlet pipe is communicated, the first pneumatic cut-off device is respectively communicated with the compressed air source to be inflated, the first water outlet pipe is cut off, and sewage and/or initial rainwater entering the pneumatic diversion well is diverted to the sewage pipe or a sewage treatment facility or an initial rainwater pipe or an initial rainwater treatment facility;

when the measurement information reaches a first threshold, switching from the first mode to the second mode, specifically as follows:

when the pneumatic diversion well is provided with a second pneumatic cut-off device, the controller controls the second pneumatic cut-off device to act, the second pneumatic cut-off device is communicated with the compressed air source to inflate, the second water outlet pipe is cut off, and rainwater entering the pneumatic diversion well or rainwater in the middle and later periods is diverted to a natural water body through the first water outlet pipe;

work as pneumatic reposition of redundant personnel well sets up first pneumatic cut-off equipment and the pneumatic cut-off equipment of second, and controller control the action of the pneumatic cut-off equipment of second, the pneumatic cut-off equipment of second with compressed air source intercommunication is aerifyd, the second outlet pipe ends, and the action of first pneumatic cut-off equipment, first pneumatic cut-off equipment and air intercommunication gassing, first outlet pipe switches on, will get into the rainwater in pneumatic reposition of redundant personnel well or middle and later stage rainwater through first outlet pipe reposition of redundant personnel to natural water.

On the basis of the proposal, when the measuring instrument is a water quality detector,

the fact that the measurement information does not reach the first threshold value corresponds to the fact that the measurement information is larger than or equal to the first threshold value;

the measurement information reaching the first threshold corresponds to the measurement information being less than the first threshold.

On the basis of the scheme, at least two pneumatic flow distributing wells are arranged, each flow distributing well is arranged on a water discharge pipe, a controller controls all the flow distributing wells to execute the same action, wherein,

the gas conveying pipeline comprises a second gas conveying main pipe and a plurality of gas conveying branch pipes, second pneumatic cut-off devices of all the pneumatic flow dividing wells are respectively communicated with the second gas conveying main pipe through the gas conveying branch pipes, and the second control valves are connected with the second gas conveying main pipe;

the gas conveying pipeline comprises a first gas conveying main pipe, a second gas conveying main pipe, a gas conveying main pipe and a plurality of gas conveying branch pipes, first pneumatic cut-off devices of all pneumatic flow dividing wells are communicated with the first gas conveying main pipe through the gas conveying branch pipes respectively, second pneumatic cut-off devices of all pneumatic flow dividing wells are communicated with the second gas conveying main pipe through the gas conveying branch pipes respectively, a first control valve is connected with the first gas conveying main pipe, and a second control valve is connected with the second gas conveying main pipe.

The invention has the following functions and beneficial effects:

1. the cost is low: the working pressure of compressed air is lower and safer, the existing compressed air generating and controlling device is mature, reliable and economical, the power source of the pneumatic diversion well is a gas station, and the cost of the gas station is lower than that of a hydraulic station; the cost of the air pipe is lower as compared with that of a high-pressure oil pipe; a plurality of pneumatic flow dividing wells can share one gas source and one gas conveying main pipe, so that the cost is saved;

2. and (3) environmental protection: the compressed air can not introduce secondary pollution, and the compressed air device has no explosion risk; safety:

3. the construction is simple: the excavation amount is small;

4. does not occupy the height space: the earth surface can not be exposed, and the urban beauty and traffic are not disturbed;

5. safety: the pneumatic shunt well does not use non-safety voltage on site, and no safety accident of electricity utilization exists;

6. the power supply is easy to obtain: the power supply voltage of the pneumatic shunt well is 220V, and a civil power grid can be used and is conveniently obtained;

7. the reliability is high: the normal work of equipment is not influenced by urban inland inundation and flooding;

8. antiwind anti-clogging ability is strong: because the sewage contains more entanglement, sundries, floaters and the like, the overflowing channel and the flow channel of the pipeline are completely kept in consistent and smooth transition after the device is installed, and the entanglement blockage cannot be generated;

9. zero water loss: the flow passage of the device after installation and the flow passage of the pipeline are completely kept consistent and smoothly transited, and drainage and flood discharge are not influenced;

10. the service life is long: in the environment of using sewage, the electric or hydraulic equipment used in sewage can often break down, and the opening and closing piece of the pneumatic cut-off device is simple and can not break down.

11. Sealing is good: the general electric or hydraulic equipment has poor water leakage sealing caused by the blockage of sundries, and the pneumatic cut-off device adopts flexible rubber sealing and has a larger sealing surface, so the sealing effect is reliable.

12. Capacity expansion and control are convenient: divide into a plurality of districts with the drain pipe network, each district sets up a pneumatic reposition of redundant personnel well, the pneumatic reposition of redundant personnel well in all districts is connected to on the gas transmission main pipe through gas transmission branch union coupling just can, all pneumatic reposition of redundant personnel wells sharing compressed air source, control valve and gas transmission main pipe, only need set up the control valve on the main road, simultaneously with control valve and controller, compressed air source sets up in the control chamber in district, just can control the reposition of redundant personnel process of sewage and rainwater to the inflation and deflation of the pneumatic cut-off equipment in the pneumatic reposition of redundant personnel well in whole district, and be convenient for insert and expand, not only with low costs, and security maneuverability is high, burst control, response speed is fast, and the operation is simple.

Drawings

Fig. 1 is a schematic structural diagram of a one-in two-out cell distribution system according to a second embodiment of the present invention;

fig. 2 is a schematic structural diagram of a one-in two-out cell splitting system in a third embodiment of the present invention.

Illustration of the drawings:

a rainwater pipe 2, a sewage pipe or a sewage treatment facility or a regulation pool or an initial rainwater pipe or an initial rainwater treatment facility 4, a water outlet pipe 1, a sewage intercepting pipe 3, a first gas conveying main pipe A, a sewage intercepting pipe A1(A2) and a second gas conveying main pipe B;

the system comprises a compressed gas source 10, a control valve 20, a gas conveying main pipe 30, a pneumatic flow dividing well 40, a controller 50 and a measuring instrument 60;

pneumatic diverter well 41, inlet 411, second outlet pipe 412, first outlet pipe 413, first pneumatic shutoff 421, second pneumatic shutoff 422.

Detailed Description

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

Example one

A flow diversion system with a pneumatic flow diversion well 40 for diverting fluid in a drain, wherein the drain is a combined, split or mixed flow regional drain or a line before a drain opening near the front of a natural body of water, comprising:

a compressed gas source 10 for providing compressed gas;

the gas conveying pipe is used for conveying gas;

the pneumatic diverter well 40 is positioned in the well,

the pneumatic flow dividing well 40 comprises a well body structure, an inlet 411, a first water outlet pipe 413, a second water outlet pipe 412 and a pneumatic cut-off device which is arranged on the second of the second water outlet pipe 412 and is a second pneumatic cut-off device 422, wherein the inlet 411 is communicated with a drain pipe on the upstream of the pneumatic flow dividing well 40, the first water outlet pipe 413 is communicated with a rainwater pipe or a natural water body on the downstream of the pneumatic flow dividing well 40, and the second water outlet pipe 412 is communicated with a sewage pipe or a sewage treatment facility or a storage tank or an initial rainwater pipe or an initial rainwater treatment facility; the sewage treatment facility in the embodiment is an integrated sewage treatment station, and the initial rainwater treatment facility is a biological filter, a sedimentation tank or an inclined plate sedimentation device;

and a control valve 20 including a second control valve 20 connected to the gas delivery pipe, the second control valve controlling the charging and discharging of the second pneumatic cut-off device 422 for controlling the closing and opening of the corresponding second water outlet pipe 412.

The pneumatic diverter well 40 in this embodiment may be of the form one or the form two, where the form one is: the inlet height of the first water outlet pipe 413 is higher than the water inlet height of the second water outlet pipe 412, and a first pneumatic cut-off device 421 is arranged at the first water outlet; the second form is: the first second water outlet pipe and the second water outlet pipe 412 are respectively provided with a first second pneumatic cut-off device and a second pneumatic cut-off device 422, the control valves 20 correspond to a first control valve and a second control valve, the first control valve and the second control valve are arranged on the gas conveying pipe, and the first control valve and the second control valve respectively control the charging and discharging of the first pneumatic cut-off device and the second pneumatic cut-off device and are used for controlling the cut-off and the conduction of the first water outlet pipe 413 and the second water outlet pipe 412.

The gas delivery pipe in this embodiment includes a gas delivery main pipe 30 and a plurality of gas delivery branch pipes, the first pneumatic shutoff device and the second pneumatic shutoff device 422 are respectively connected to the gas delivery main pipe 30 through a gas delivery branch pipe, and the corresponding gas delivery branch pipes are connected to the first control valve and the second control valve. Wherein the gas transmission main pipe 30 is connected with the gas transmission branch pipe and the compressed gas source 10.

Further, the system further comprises a measuring instrument 60 and a controller 50, the measuring instrument 60 and the control valve 20 are respectively connected with the controller 50 by signals, the controller 50 controls the control valve 20 to act according to the measuring signals measured by the measuring instrument 60, wherein,

when the pneumatic diverter well 41 is provided with the second pneumatic shut-off 422, i.e. in the form of one:

the measuring instrument 60 is used for controlling the second control valve to act, so that the second water outlet pipe 412 is communicated after the second pneumatic cut-off device 422 is deflated, domestic sewage and/or initial rainwater entering the pneumatic flow dividing well 41 are divided to a sewage pipe or a sewage treatment facility or a regulation pool or an initial rainwater pipe or an initial rainwater treatment facility, so that the second pneumatic cut-off device 422 is inflated to the second water outlet pipe 412 to be cut off, and rainwater entering the pneumatic flow dividing well or middle and later rainwater are divided to a rainwater pipe or a natural water body;

when the pneumatic diverter well 41 is provided with the first pneumatic stop 421 and the second pneumatic stop 422, i.e. the form two:

the measuring instrument 60 is used for controlling the first control valve and the second control valve to respectively act, so that the second water outlet pipe 412 is communicated after the second pneumatic cut-off device 422 deflates, the first water outlet pipe 413 is inflated by the first pneumatic cut-off device 421 to cut off domestic sewage and/or initial rainwater entering the pneumatic flow dividing well 41 to be distributed to a sewage pipe or a sewage treatment facility or a regulation and storage tank or a rain pipe or a regulation and storage tank or an initial rainwater treatment facility, so that the first water outlet pipe 413 is deflated by the first pneumatic cut-off device 421 and is communicated, and the second water outlet pipe 412 is inflated by the second pneumatic cut-off device 422 to cut off rainwater entering the pneumatic flow dividing well 41 or rainwater at middle and later periods to be distributed to a rain pipe or a natural water.

The gas delivery pipe in this embodiment may be two gas delivery main pipes 30, the first pneumatic shutoff device and the second pneumatic shutoff device 422 are respectively connected to the compressed gas source 10 through one gas delivery main pipe 30, and the corresponding gas delivery main pipe 30 is provided with a first control valve and a second control valve. The pneumatic cut-off device is a pneumatic pipe clamp valve or an air bag or an air pillow, in the embodiment, the air bag is a drum-shaped air bag and is fixed through a rope. The first and second pneumatic cut-off devices are arranged in the diversion well and positioned at the beginning of the first and second water outlet pipes or arranged on the pipelines of the first and second water outlet pipes

The measuring instrument 60 includes one or more of a rain gauge, a flow meter, a water gauge, a timer, a water quality detector, and a liquid level meter, and correspondingly, the measuring information includes one or more of rainfall, rainfall time, instantaneous flow, accumulated water amount, water quality, and water level in the well structure.

The flowmeter is arranged on a water outlet of the pneumatic flow dividing well 41 and is controlled by setting a flow threshold value through the controller 50, and the instantaneous flow collected by the flowmeter is sent to the controller 50 as measurement information.

The water meter is arranged on a water outlet of the pneumatic flow dividing well 41 and is controlled by setting a flow threshold value through the controller 50, and the accumulated flow collected by the water meter is sent to the controller 50.

The timer is controlled by setting a time threshold of the rainfall time, measures the rainfall time, and transmits the rainfall time as measurement information to the controller 50.

The water quality detector is arranged in the diversion well to monitor and obtain the water quality index in water, a corresponding threshold value of the water quality index is set, and the measured value of the water quality index is sent to the controller 50 as the measurement information in real time.

And the liquid level meter is arranged in the pneumatic flow dividing well 41, the flow abandoning well or the intercepting well, is controlled by measuring the liquid level, and sends the measured liquid level as measurement information to the controller 50.

The rain gauge is placed outdoors in the open air, performs control by measuring the amount of rain, and transmits the measured amount of rain as measurement information to the controller 50.

In the above embodiment, the measuring instrument 60 may be one type, and in a special requirement or in order to improve the accuracy of the control, a plurality of measuring instruments 60 may be provided to collect a plurality of types of measurement information for control: when various kinds of measurement information meet the requirements, the controller 50 acts, and the operation enables the rainwater and sewage to be better in shunting effect.

The control method of the system comprises the following steps:

the method includes a first mode and a second mode, the measuring device continuously collects measurement information, the controller 50 sets a first threshold, the controller 50 performs the first mode or the second mode according to a comparison of the collected measurement information with the first threshold, wherein

S1, when the pneumatic measurement information does not reach the first threshold value, the first mode is:

when the pneumatic flow splitting well 41 is provided with the second pneumatic intercepting device 422, namely, the mode I is adopted, the pneumatic controller 50 respectively controls the second control valves to act, the second pneumatic intercepting device 422 is communicated with air to deflate, the second water outlet pipe 412 is communicated, and sewage entering the pneumatic flow splitting well 41 is split to a sewage pipe or a regulation and storage pool or a sewage treatment facility;

when the pneumatic diversion well 41 is provided with the first pneumatic cut-off device 421 and the second pneumatic cut-off device 422, namely the second form, the pneumatic controller 50 respectively controls the first control valve and the second control valve to respectively act, the second pneumatic cut-off device 422 is communicated with air to be deflated, the second water outlet pipe 412 is communicated, the first pneumatic cut-off device 421 is communicated with the pneumatic compressed air source 10 to be inflated, the first water outlet pipe 413 is cut off, and sewage entering the pneumatic diversion well 41 is diverted and/or initial rainwater is delivered to a pneumatic sewage pipe or a regulation pool or a sewage treatment facility or an initial rainwater pipe or an initial rainwater treatment facility;

s2, when the pneumatic measurement information reaches the first threshold, switching from the first mode to the second mode, specifically as follows:

if the pneumatic diversion well 41 is provided with the second pneumatic cut-off device 422, namely the mode I, if the second water outlet pipe 412 is in a conducting state, the controller 50 controls the second pneumatic cut-off device 422 to act, the second pneumatic cut-off device 422 is communicated with the pneumatic compressed air source 10 for inflation, the second water outlet pipe 412 is cut off, and rainwater entering the pneumatic diversion well 41 or rainwater at the middle and later stages is diverted to the natural water body through the first water outlet pipe 413;

if the pneumatic diversion well 41 is provided with the first pneumatic cut-off device 421 and the second pneumatic cut-off device 422, namely the second type, the second pneumatic cut-off device 422 is communicated with the pneumatic compressed air source 10 for inflation, the second water outlet pipe 412 is cut off, the first pneumatic cut-off device 421 acts, the first pneumatic cut-off device 421 is communicated with the air for deflation, the first water outlet pipe 413 is communicated, and rainwater entering the pneumatic diversion well or rainwater at the middle and later stages is diverted to the natural water body through the first water outlet pipe 413.

Specifically, when the measurement information is the rainfall measured by using a rain gauge, the first threshold is a first rainfall threshold, the second threshold is a second rainfall threshold, the second rainfall threshold is greater than the first rainfall threshold, and the selected value of the first rainfall threshold is greater than or equal to zero. By analogy, different types of threshold values can be selected according to specific use requirements, and the control method is adjusted on the basis of the scheme.

When the measuring instrument is a water quality detector,

The water pipes are confluence pipes of confluence system districts, rainwater pipes of shunt system districts or rainwater pipes mixed with sewage of the shunt system districts or drainage pipelines arranged in front of a discharge port close to the front of a natural water body, each drainage pipe is provided with a pneumatic shunt well, the controller controls all the shunt wells to execute the same action and simultaneously executes the steps of S1, S2 and S3,

when the pneumatic diversion well is provided with the second pneumatic cut-off device:

the gas conveying pipeline comprises a second gas conveying main pipe and a plurality of gas conveying branch pipes, second pneumatic cut-off devices of all the pneumatic flow dividing wells are respectively communicated with the second gas conveying main pipe through the gas conveying branch pipes, and second control valves are connected with the second gas conveying main pipe;

when the pneumatic diverter well sets up first pneumatic cut-off equipment and the pneumatic cut-off equipment of second:

the gas conveying pipeline comprises a first gas conveying main pipe, a second gas conveying main pipe, a gas conveying main pipe and a plurality of gas conveying branch pipes, first pneumatic cut-off devices of all pneumatic flow dividing wells are communicated with the first gas conveying main pipe through the gas conveying branch pipes respectively, second pneumatic cut-off devices of all pneumatic flow dividing wells are communicated with the second gas conveying main pipe through the gas conveying branch pipes respectively, a first control valve is connected with the first gas conveying main pipe, and a second control valve is connected with the second gas conveying main pipe

Example two

Fig. 1 is a schematic structural diagram of a one-in-two-out cell flow system applied to a flow division cell, a flow combination cell, or a flow mixing cell according to an embodiment of the present invention.

Referring to fig. 1, the pneumatic flow-dividing well is in the form of a first pneumatic flow-dividing well, and comprises a compressed air source 10, a control valve 20, a gas conveying main pipe 30, a pneumatic flow-dividing well 40, a controller 50, a measuring instrument 60, a rainwater pipe and a sewage pipe 4 which are communicated with each other through a water outlet pipe 1, a sewage intercepting pipe 3 and the pneumatic flow-dividing well 40.

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

The inlet of the control valve 20 is communicated with a compressed air source, when an air bag or a pneumatic pipe clamp valve structure is arranged in the pneumatic flow dividing well 40, 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 21 and is arranged in a control chamber of a community.

The gas transmission main pipe 30 is communicated with the outlet of the control valve 20 and is used for transmitting compressed gas, and the compressed gas is communicated with the pneumatic cut-off device of the pneumatic flow dividing well 40 through the gas transmission branch pipe. Where a gas delivery main 30 is provided when the pneumatic diverter well 40 is in the form of a bladder or pneumatic pinch valve.

A plurality of pneumatic reposition of redundant personnel wells 40, form one, it includes that pneumatic reposition of redundant personnel well 41 and an gasbag or pneumatic tube pinch valve constitute, pneumatic reposition of redundant personnel well 41 sets up on the drain pipe pipeline, pneumatic reposition of redundant personnel well includes well body structure and sets up import 411, first outlet pipe 413, second outlet pipe 412 on this well body structure, wherein the import communicates the drain pipe of pneumatic reposition of redundant personnel well upstream, first outlet pipe 413 passes through outlet pipe C and communicates the downspout of pneumatic reposition of redundant personnel well downstream, second outlet pipe 412 passes through cut off dirty pipe A and communicates sewage pipe or sewage treatment facility or regulation pond or primary rain pipe or primary rain treatment facility.

The pneumatic cut-off device disposed on the second water outlet pipe 412 may be an air bag or a pneumatic pipe clamp valve or an air pillow, in this embodiment, a drum-shaped air bag or a pneumatic pipe clamp valve, disposed in the first water outlet pipe 413, and fixed by a rope.

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

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

A controller 50, in signal connection with said control valve 20, for controlling the control valve 20, is arranged 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 detector 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.

The controller of this embodiment determines according to the collected measurement information, and changes the on or off state of the second water outlet pipe 412 controlled by all the air bags or the pneumatic pipe clamps after the control valve is actuated. In this embodiment, the change of the on-off state of the second outlet pipe 412 causes the inlet to be connected or disconnected with the sewage pipe or the sewage treatment facility or the regulation pool or the primary rain pipe or the primary rain treatment facility, so as to correspondingly shunt the fluid at the inlet into the sewage pipe or the sewage treatment facility or the regulation pool or the primary rain pipe or the primary rain treatment facility 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 the actions of all air bags or pneumatic pipe clamp valves connected with a gas conveying main pipe 30, and all the air bags or pneumatic pipe clamp valves are switched to be in one state at the same time, so that the control is simple, and the automation cost is high.

EXAMPLE III

Fig. 2 is a schematic structural diagram of a one-in two-out cell splitting system in a third embodiment of the present invention. The pneumatic diverter well in this embodiment is of the second type.

As shown in fig. 2, the present embodiment is different from the second embodiment in that: two pneumatic cut-off devices are correspondingly arranged at the first water outlet pipe 413 and the second water outlet pipe 412 of the pneumatic diversion well, the first pneumatic cut-off device 421 and the second pneumatic cut-off device 422 are respectively arranged, and the pneumatic cut-off devices are air bags or pneumatic pipe clamp valves. Correspondingly, two control valves are to be provided: the number of the first control valve and the second control valve, 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 pneumatic cut-off device 421, and the second control valve controls the second gas conveying main pipe to control the inflation and deflation of the second pneumatic cut-off device 422.

When a plurality of pneumatic diversion wells 40 are arranged in a certain area, the first pneumatic cut-off devices 421421 are respectively communicated with the first gas conveying main pipe through gas conveying branch pipes, all the second pneumatic cut-off devices 422 of the pneumatic diversion wells 40 are respectively communicated with the second gas conveying main pipe through gas conveying branch pipes, the controller controls the control valves to act, controls all the first pneumatic cut-off devices 421 to be inflated and opened simultaneously and controls all the second pneumatic cut-off devices 422 to be deflated and restored to a natural state simultaneously according to monitoring information, or controls all the first pneumatic cut-off devices 421 to be deflated and restored to a natural state simultaneously and controls all the second pneumatic cut-off devices 422 to be inflated and opened simultaneously.

Example four

The technical solution of this embodiment is to replace the air bag in the technical solutions of the first to third embodiments with a pneumatic pinch valve.

EXAMPLE five

On the basis of the third or fourth embodiment, in this embodiment:

when the second water outlet pipe 412 is communicated with a storage tank, the second water outlet pipes 412 of the plurality of pneumatic diversion wells 41 are connected with a storage tank; correspondingly, when shunting, domestic sewage and/or initial rainwater directly enter the regulation and storage pond and are stored.

Or, as an optimization, in some occasions, two or more second water outlet pipes 412 of the pneumatic flow dividing wells can be communicated with the same storage tank, so that the utilization rate of the storage tank is improved or the number of the storage tanks is reduced, and the construction cost is saved.

EXAMPLE six

On the basis of the first to the fifth embodiments, the system further comprises a control center, and the controller 50 is provided with a communication module for communicating with the control center;

the control center sends an operation instruction to remotely control the controller 50 and controls the opening and closing of the control valve 20 through the controller 50; and/or, the control center collects, displays, stores and analyzes the measurement information collected by the measurement instrument 60 through the controller 50.

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 as a trunk line of a gas conveying main pipe and a branch pipe and a plurality of shunting ways are used, the control valve is only required to be arranged on the trunk line, and meanwhile, the control valve, the controller and the compressed gas source are arranged in the control chamber of the plate area, so that the charging and discharging of the air bag or the pneumatic pipe clamping valve in the pneumatic shunting well in the whole plate area can be controlled to control the shunting process of sewage and rainwater, and the connection and the expansion are convenient.

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

For the condition that the sewage pipe or the sewage treatment facility or the regulation pool or the primary rain pipe or the primary rain treatment facility is arranged below the pneumatic flow dividing well, the short circuit of the sewage is carried out 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 or the sewage treatment facility or the regulation pool or the initial rain pipe or the initial rain treatment facility is positioned at the same horizontal plane with the pneumatic diversion well, two air bags or pneumatic pipe clamp valves are arranged for controlling, one air bag or pneumatic pipe clamp valve and one air conveying main pipe and one control valve are respectively used for uniformly controlling the conduction and the stop states of the sewage pipe or the sewage treatment facility or the regulation pool or the initial rain pipe or the initial rain treatment facility and the rain pipe and the inlet drain pipe, the same air source is only used, corresponding controllers, control valves and measuring instruments are arranged in a control room of a lower cell or a cell, the remote and synchronous control is realized, a control room is arranged in a certain cell (such as a certain road of the cell, a certain street of a city or a vegetable market, a shop or a clapping area), and a control device (comprising an air source, a control valve and a clapping area), Controller, measuring instrument) can control the diversion of rainwater and sewage in the drain pipe (either diversion or confluence) of the target area.

Further, since the pneumatic flow dividing well further has a position sensor, by providing the position sensor on the inner peripheral wall of the outlet of the pneumatic flow dividing well 40 where the air bag or the pneumatic pipe clamp valve is provided, and by correspondingly providing the position sensor on the inner wall of the outlet communicated with the sewage pipe or the sewage treatment facility or the storage tank or the primary rain pipe or the primary rain treatment facility, the expanded position of the air bag or the pneumatic pipe 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 pipe clamp valve is blocked or damaged and leaked, the problem of which air bag or pneumatic pipe clamp valve can be detected specifically and rapidly occurs:

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 flow diversion system with a pneumatic flow diversion well for diverting fluid in a drain, comprising:

a compressed gas source for providing compressed gas;

the gas conveying pipe is used for conveying gas;

the pneumatic flow-dividing well is provided with a flow-dividing well,

the pneumatic flow dividing well comprises a well body structure, an inlet, a first water outlet pipe, a second water outlet pipe and a pneumatic cut-off device, wherein the inlet, the first water outlet pipe and the second water outlet pipe are at least arranged on the well body structure, the pneumatic cut-off device is a second pneumatic cut-off device, the pneumatic cut-off device is arranged on the second water outlet pipe, the inlet is communicated with a water discharge pipe on the upstream of the pneumatic flow dividing well, the first water outlet pipe is communicated with a rainwater pipe or a natural water body on the downstream of the pneumatic flow dividing well, and the second water outlet pipe is communicated with a sewage pipe or;

the control valve comprises a second control valve connected with the gas conveying pipe, and the second control valve controls the inflation and deflation of the second pneumatic cut-off device and is used for controlling the cut-off and the conduction of the corresponding second water outlet pipe;

the drainage pipe is a confluence pipe of a confluence system community, a rainwater pipe of a shunt system community or a rainwater pipe mixed with sewage of the shunt system community or a drainage pipeline arranged in front of a discharge port close to the front of a natural water body.

2. The flow diversion system with a pneumatic flow diversion well of claim 1, wherein:

the inlet height of the first water outlet pipe is higher than the water inlet height of the second water outlet pipe; or,

still be provided with first pneumatic cut-off equipment on the first outlet pipe, the control valve still includes first control valve, first control valve set up in on the gas delivery pipe, first control valve control the inflation of first pneumatic cut-off equipment, gassing for control first outlet pipe cut-off, switch on.

3. A flow diversion system with a pneumatic flow diversion well according to claim 2, wherein: the system also comprises a measuring instrument and a controller, wherein the measuring instrument and the control valve are respectively in signal connection with the controller, the controller controls the control valve to act according to the measuring signal measured by the measuring instrument, wherein,

the control valves are used for controlling the second control valves to act respectively, so that the second air discharging pipe of the second pneumatic intercepting device is communicated, and domestic sewage and/or initial rainwater entering the pneumatic shunt well are shunted to a sewage pipe or a sewage treatment facility or a regulation and storage pool or an initial rainwater pipe or an initial rainwater treatment facility; stopping inflating a second water outlet pipe by a second pneumatic cut-off device, and shunting rainwater entering the pneumatic shunting well or middle and later stage rainwater to a rainwater pipe or a natural water body;

the controller is used for controlling the first control valve and the second control valve to act respectively, so that the second air outlet pipe of the second pneumatic cut-off device is communicated, the first air outlet pipe of the first pneumatic cut-off device is inflated to cut off, domestic sewage and/or initial rainwater entering the pneumatic diversion well are diverted to a sewage pipe or a sewage treatment facility or a regulation pool or an initial rainwater pipe or an initial rainwater treatment facility, the first air outlet pipe of the first pneumatic cut-off device is communicated, the second air outlet pipe of the second pneumatic cut-off device is inflated to cut off, and rainwater entering the pneumatic diversion well or rainwater at middle and later stages is diverted to a rainwater pipe or a natural water body.

4. A flow diversion system with a pneumatic flow diversion well according to claim 3, wherein: arranging at least two pneumatic flow dividing wells; wherein,

the gas conveying pipeline comprises a second gas conveying main pipe and a plurality of gas conveying branch pipes, second pneumatic cut-off devices of all the pneumatic flow dividing wells are respectively communicated with the second gas conveying main pipe through the gas conveying branch pipes, the second control valves are arranged on the second gas conveying main pipes, and the second control valves are used for controlling the second pneumatic cut-off devices of all the pneumatic flow dividing wells to be inflated or deflated simultaneously;

the gas conveying pipeline comprises a first gas conveying main pipe, a second gas conveying main pipe and a plurality of gas conveying branch pipes, first pneumatic intercepting devices of all pneumatic flow dividing wells are communicated with the first gas conveying main pipe through the gas conveying branch pipes respectively, second pneumatic intercepting devices of all pneumatic flow dividing wells are communicated with the second gas conveying main pipe through the gas conveying branch pipes respectively, first control valves are arranged on the first gas conveying main pipes and used for controlling the first gas intercepting devices of all pneumatic flow dividing wells to inflate or deflate simultaneously, second control valves are arranged on the second gas conveying main pipes and used for controlling the second pneumatic intercepting devices of all pneumatic flow dividing wells to inflate or deflate simultaneously.

5. A flow diversion system with a pneumatic flow diversion well according to claim 4, wherein: when the second water outlet pipe is communicated with the storage tank, the second water outlet pipes of the plurality of pneumatic flow distribution wells are connected with one storage tank.

6. A flow diversion system with a pneumatic flow diversion well according to claim 3, wherein:

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

7. A flow diversion system with a pneumatic flow diversion well according to claim 3, wherein: the controller is provided with a communication module communicated with the control center;

8. A control method of a flow distribution system with a pneumatic flow distribution well, having the flow distribution system with a pneumatic flow distribution well according to claim 3, for correspondingly distributing sewage, early stage rainwater and rainwater or middle and later stage rainwater in a drain pipe, characterized in that: the method comprises a first mode and a second mode, wherein the measuring device continuously collects measuring information, the controller sets a first threshold value, and the controller executes the first mode or the second mode according to the comparison between the collected measuring information and the first threshold value, wherein the first mode or the second mode is executed

when the pneumatic diversion well is provided with a second pneumatic cut-off device, the controller controls a second control valve to act, the second pneumatic cut-off device is communicated with air to release air, the second water outlet pipe is communicated, and sewage and/or initial rainwater entering the pneumatic diversion well is diverted to the sewage pipe or sewage treatment facility or a regulation and storage pool or an initial rainwater pipe or an initial rainwater treatment facility;

when the pneumatic diversion well is provided with a first pneumatic cut-off device and a second pneumatic cut-off device, the controller respectively controls the first control valve and the second control valve to respectively act, the second pneumatic cut-off device is communicated with air to deflate, the second water outlet pipe is communicated, the first pneumatic cut-off device is respectively communicated with the compressed air source to inflate, the first water outlet pipe is cut off, and sewage and/or initial rainwater entering the pneumatic diversion well is diverted to the sewage pipe or a sewage treatment facility or a regulation pool or an initial rainwater pipe or an initial rainwater treatment facility;

when the pneumatic diversion well is provided with a second pneumatic cut-off device, the controller controls the second pneumatic cut-off device to act, the second pneumatic cut-off device is communicated with the compressed air source to inflate, the second water outlet pipe is cut off, and rainwater entering the pneumatic diversion well or rainwater at the middle and later stages are diverted to a natural water body or a rainwater pipe through the first water outlet pipe;

work as pneumatic reposition of redundant personnel well sets up first pneumatic cut-off equipment and the pneumatic cut-off equipment of second, and controller control the action of the pneumatic cut-off equipment of second, the pneumatic cut-off equipment of second with compressed air source intercommunication is aerifyd, the second outlet pipe ends, and the action of first pneumatic cut-off equipment, first pneumatic cut-off equipment and air intercommunication gassing, first outlet pipe switches on, and the rainwater that will get into in the pneumatic reposition of redundant personnel well or middle and later stage rainwater is shunted to natural water or rainwater pipe through first outlet pipe.

9. The method of controlling a flow diversion system having a pneumatic flow diversion well according to claim 8,

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

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

10. The method of controlling a flow diversion system having a pneumatic flow diversion well of claim 8, wherein: when the measuring instrument is a water quality detector,

11. The method of controlling a flow diversion system having a pneumatic flow diversion well of claim 8, wherein: at least two pneumatic flow distributing wells are arranged, each flow distributing well is arranged on a water discharge pipe, the controller controls all the flow distributing wells to execute the same action, wherein,