CN209907521U - Backflow prevention system for sewage pipe and/or primary rain pipe of flow dividing well - Google Patents
Backflow prevention system for sewage pipe and/or primary rain pipe of flow dividing well Download PDFInfo
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- 239000010865 sewage Substances 0.000 title claims description 36
- 230000002265 prevention Effects 0.000 title claims description 6
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- 239000008239 natural water Substances 0.000 claims description 8
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Abstract
The utility model discloses a system of flowing backward is prevented flowing backward of sewer pipe and/or first rain pipe of reposition of redundant personnel well, this system includes: a compressed gas source for providing compressed gas; the gas conveying pipe is communicated with the outlet of the compressed gas source and is used for conveying compressed gas; the control valve is connected with the gas conveying pipe; the controller is connected with the control valve and is used for controlling the control valve to act; and the pneumatic flow dividing well comprises a flow dividing well body, a pneumatic cut-off device and an in-well liquid level meter arranged in the flow dividing well body, wherein an out-of-well liquid level meter is arranged outside the flow dividing well body, the in-well liquid level meter is used for transmitting the collected in-well liquid level and out-of-well liquid level information to the controller, and the controller is used for controlling the action of the second control valve according to the relation between the out-of-well liquid level and the in-well liquid level.
Description
Technical Field
The utility model relates to a municipal works field, concretely relates to method and system are prevented flowing backward by sewage pipe and/or first rain pipe of reposition of redundant personnel well.
Background
At present in reposition of redundant personnel well, abandon a class well and vatch basin system, its system all comprises inlet tube, outlet pipe and intercepting dirty pipe, and the device that uses of preventing flowing backward all uses gate or weir door to carry out the preventing flowing backward that corresponds the outlet pipe, and the power supply of gate valve is electricity or hydraulic pressure. 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 diversion well, a flow abandoning well or a closure 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 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 the common electric control device with the IP68 grade 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.
SUMMERY OF THE UTILITY MODEL
In order to solve the problems, the utility model provides a method and a system for preventing backflow of a sewage pipe and/or an initial rain pipe of a flow dividing well, which are convenient to install and maintain, safe and reliable.
In order to achieve the above purpose, the utility model adopts the technical proposal that:
a method for preventing backflow of a sewage pipe and/or an initial rain pipe of a diversion well comprises the following steps:
acquiring liquid level information H1 in the well in the diversion well in real time and liquid level information H2 in an inspection well of which a second water outlet pipe of the diversion well is connected with a sewage pipe and/or an initial rain pipe,
when H2 is more than or equal to H1, executing a backflow preventing program: the second pneumatic cut-off device is inflated, and the second water outlet pipe is closed to prevent the fluid in the sewage pipe or the primary rain pipe from flowing backwards into the diversion well;
and when the liquid level information H2 is less than the liquid level information H1 in the well, the backflow preventing program is exited.
On the basis of the scheme, the controller is also provided with a backflow prevention water level H corresponding to the bottom elevation of the second water outlet pipe,
when H2 is more than or equal to H and H2 is more than or equal to H1, executing a backflow preventing program;
and when H2 is less than H, the backflow preventing program is exited.
On the basis of the scheme, when H2 is H1, the second pneumatic cut-off device starts to be inflated, the second water outlet pipe starts to be gradually closed, and then,
if H2 is not less than H1, the second pneumatic cut-off device continuously inflates until the second water outlet pipe is cut off;
if H2 is less than H1, the second pneumatic cut-off device is deflated and communicated with the second water outlet pipe.
On the basis of the scheme, the anti-falling of the sewage pipe and/or the primary rain pipe of the shunt well
A irrigation system comprising:
a compressed gas source for providing compressed gas;
the gas conveying pipe is communicated with the outlet of the compressed gas source and is used for conveying compressed gas;
the control valve is connected with the gas conveying pipe;
the controller is connected with the control valve and is used for controlling the control valve to act; and
the pneumatic flow-dividing well is provided with a flow-dividing well,
the pneumatic flow dividing well comprises a flow dividing well body, a pneumatic cut-off device and an in-well liquid level meter arranged in the flow dividing well body,
the diversion well body is provided with a water inlet and at least two water outlets which are respectively a first outlet and a second outlet, the first outlet is connected with a natural water body or a rainwater pipe through a first water outlet pipe, the second outlet is connected with a sewage pipe or a primary rainwater pipe through a second water outlet pipe, at least the second water outlet pipe is provided with a pneumatic cut-off device which is a second pneumatic cut-off device,
an outdoor liquid level meter is arranged outside the diversion well body at the downstream of the second water outlet pipe, the control valve is a second control valve, and the second control valve is connected with the gas conveying pipe and used for controlling the inflation and deflation of the second pneumatic cut-off device and corresponding to the cut-off or conduction of the second water outlet pipe;
the second water outlet pipe is communicated with the sewage pipe or the primary rain pipe through a sewage well, and an outdoor liquid level meter is arranged in the sewage well;
the liquid level meter in the well, the liquid level meter outside the well and the second control valve are respectively connected with the controller by signals,
the liquid level gauge in the well, the liquid level gauge outside the well is used for transmitting the liquid level in the well and the liquid level information outside the well collected to the controller, the controller is used for controlling the action of the second control valve according to the relation between the liquid level outside the well and the liquid level in the well.
On the basis of the scheme, the method further comprises the following steps:
the solar panel or the wind driven generator is used for supplying power to the controller and the control valve;
and/or, a storage battery for supplying power to the controller and the control valve;
and/or the control valve is a two-position three-way control valve or an electromagnetic valve combination.
On the basis of the scheme, the pneumatic cut-off device is an air bag or a pneumatic pipe clamping valve,
the air bag is provided with an air inlet which is connected with the gas conveying branch pipe;
the pneumatic pinch valve also has a gas inlet that is connected to the gas delivery manifold.
On the basis of the scheme, the pneumatic flow dividing well is in a first form, a water inlet, a first outlet and a second outlet are formed in the flow dividing well body, the first water outlet pipe and the second water outlet pipe are respectively provided with the pneumatic cut-off devices which are respectively a first pneumatic cut-off device and a second pneumatic cut-off device, the first pneumatic cut-off device and the second pneumatic cut-off device are connected with the gas conveying pipe, and the control valves are a first control valve and a second control valve which are connected with the gas conveying pipe;
or, the form of pneumatic reposition of redundant personnel well is form two, works as the level height in the feed liquor position of first export is higher than when the level height in the feed liquor position of second export, sets up one pneumatic cut-off equipment is the pneumatic cut-off equipment of second, the pneumatic cut-off equipment of second is located on the second outlet pipe.
On the basis of the scheme, the diversion well body also comprises a third outlet, the first outlet is communicated with a rainwater pipe or a natural water body through a first water outlet pipe, the second outlet is communicated with a sewage pipe through a second water outlet pipe, the third outlet is communicated with a primary rainwater pipe through a third water outlet pipe, wherein,
the diversion well is in a third form, the first water outlet pipe, the second water outlet pipe and the third water outlet pipe are respectively provided with a first pneumatic cut-off device, a second pneumatic cut-off device and a third pneumatic cut-off device, and the diversion well further comprises a first control valve and a third control valve which are used for controlling the inflation and deflation of the first pneumatic cut-off device and the third pneumatic cut-off device;
or, the form of pneumatic reposition of redundant personnel well is form four, works as the level height of the feed liquor position of first export is higher than during the level height of the feed liquor position of second export, third export, sets up two pneumatic cut-off equipment, respectively be with the pneumatic cut-off equipment of second that the second outlet pipe links to each other and the pneumatic cut-off equipment of third of setting on the third outlet pipe still include the third control valve for control the pneumatic cut-off equipment of third fills, outgases.
On the basis of the scheme, the first pneumatic intercepting device is arranged in the diversion well body and positioned at the starting end of the first outlet or on a pipeline of the first water outlet pipe;
and/or the second pneumatic cut-off device is arranged on the start end of the second outlet of the diversion well body or on the pipeline of the second water outlet pipe;
and/or the third pneumatic cut-off device is arranged at the starting end of a third water outlet or on a third water outlet pipe of the diversion well body.
On the basis of the scheme, the system also comprises one or more of a rain gauge, a flow meter, a water meter, a timer and a water quality detector,
correspondingly, the measurement information comprises one or more of rainfall, instantaneous flow, accumulated flow, rainfall time and water quality.
Utility model's advantage and beneficial effect lie in:
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;
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 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 shunt well is 220V, and the shunt well can use a municipal and civil power grid and is convenient to obtain;
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 of the device after being installed and the flow channel of the municipal pipeline are completely kept in consistent and smooth transition, and the entanglement and blockage can not be generated;
9. zero water loss: the overflowing channel after the device is installed and the flow channel of the municipal pipeline are completely kept in consistent and smooth transition, and drainage and flood discharge are not influenced;
10. the service life is long: in the environment of using sewage, electric or hydraulic equipment used in the sewage can often generate faults, and the opening and closing piece of the pneumatic cut-off device is simple and cannot generate faults;
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. Safe and reliable: through setting up level gauge and the outer level gauge of well in, compare the relation between liquid level and the outer liquid level of well in, switch on when the export of control interception dirt pipe still ends, in the mode sewage flows backward gets into the reposition of redundant personnel well, causes environmental pollution behind the inflow natural water body.
Drawings
Fig. 1 is a schematic structural diagram of a diversion well provided with a first outlet and a second outlet in an embodiment of the present invention;
FIG. 2 is a cross-sectional view of FIG. 1;
FIG. 3 is a schematic diagram of a junction control system for a diverter well having a first outlet and a second outlet according to an embodiment of the present invention;
fig. 4 is a schematic structural diagram of a diversion well provided with a first outlet, a second outlet and a third outlet in the embodiment of the present invention;
FIG. 5 is a cross-sectional view of FIG. 3;
fig. 6 is a diagram of a junction control system with a first outlet, a second outlet and a third outlet in an embodiment of the present invention;
fig. 7 is a schematic view of the embodiment of the present invention in which the diversion well is connected to the inspection well.
10-a diverter well, 11-a diverter well body, 12-a water inlet, 13-a first pneumatic cut-off device, 14-a second pneumatic cut-off device, 15-a third pneumatic cut-off device, 16-a first water outlet pipe, 17-a second water outlet pipe, 18-a third water outlet pipe and 19-an inspection well;
20-control valve, 23-first control valve, 24-second control valve, 25-third control valve,
30-an outside-well liquid level meter, 31-an inside-well liquid level meter,
and 40, a controller.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and examples.
Example 1
Referring to fig. 3, an embodiment of the present invention provides a method for preventing backflow of a sewage pipe and/or an initial rain pipe of a diversion well:
collecting liquid level information H1 in the well in the diversion well in real time and liquid level information H2 in the inspection well of which the water outlet pipe of the diversion well is connected with a sewage pipe and/or an initial rain pipe,
when H2 is more than or equal to H1, executing a backflow preventing program: the pneumatic cut-off device is inflated, and the water outlet pipe is closed to prevent the fluid in the sewage pipe or the primary rain pipe from flowing back into the diversion well;
and when the liquid level information H2 is less than the liquid level information H1 in the well, the backflow preventing program is exited.
The controller is also provided with a backflow-preventing water level H corresponding to the elevation of the bottom of the water outlet pipe,
when H2 is more than or equal to H and H2 is more than or equal to H1, executing a backflow preventing program;
and when H2 is less than H, the backflow preventing program is exited.
A method for preventing backflow of a sewage pipe and/or an initial rain pipe of a diversion well comprises the following steps:
when H2 is H1, the pneumatic cut-off starts to inflate, the outlet pipe starts to close gradually, and then,
if H2 is not less than H1, the pneumatic cut-off device continuously inflates until the water outlet pipe is cut off;
if H2 is less than H1, the pneumatic cut-off device is deflated and communicated with the water outlet pipe.
In the embodiment, if the water outlet pipe connected with the sewage pipe is the second water outlet pipe, the pneumatic cut-off device is the second pneumatic cut-off device, the water outlet pipe connected with the primary rain pipe is the third water outlet pipe, and the pneumatic cut-off device is the third pneumatic cut-off device. The liquid level information H2 in this embodiment is the liquid level information H2 outside the well, measured inside the inspection well.
Example 2
Referring to fig. 1, 2, 3, and 7, an embodiment of the present invention provides a backflow prevention system for a sewage pipe and/or an initial rain pipe of a diversion well, including: compressed gas source, gas delivery pipe, control valve 20, liquid level gauge 30 outside the well, liquid level gauge 31 in the well and pneumatic flow dividing well 10.
The pneumatic diverter well 10 comprises a diverter well body 11, a pneumatic cut-off device, an in-well liquid level meter 31 arranged in the diverter well body 11, an out-well liquid level meter 30 arranged in an inspection well 19 outside the diverter well body 11,
the diverter well 10 in this embodiment is of the form one: the diversion well body is provided with a water inlet 12 and two water outlets, namely a first outlet and a second outlet, the first outlet is connected with a natural water body or a rainwater pipe through a first water outlet pipe 16, the second outlet is connected with a sewage pipe through a second water outlet pipe 17, and pneumatic cut-off devices, namely a first pneumatic cut-off device 13 and a second pneumatic cut-off device 14, are arranged on the first water outlet pipe 16 and the second water outlet pipe 17. The control valve 20 comprises a first control valve 23 and a second control valve 24 controlling the first pneumatic stop 13, the second pneumatic stop 14. The first pneumatic cut-off equipment 13 and the second pneumatic cut-off equipment 14 are air bags or pneumatic pipe clamp valves, the first pneumatic cut-off equipment 13 and the second pneumatic cut-off equipment 14 are connected with a compressed air source through a gas conveying pipe, an inlet is arranged on the first pneumatic cut-off equipment, the inlet is connected with the compressed air source through the gas conveying pipe, when the air bags or the pneumatic pipe clamp valves are inflated and expanded, the first water outlet pipe 16 and the second water outlet pipe 17 are blocked and cut off, and when the air bags or the pneumatic pipe clamp valves are deflated to restore the natural state, the first water outlet pipe 16 and the second water outlet pipe 17 are communicated with the interior of the shunt well body 11 and are communicated.
The gas delivery line in this embodiment may be two main pipes, the inlet of the first pneumatic shut-off device 13 is connected to one main pipe, the main pipe is provided with a first control valve 23, the inlet of the second pneumatic shut-off device 14 is connected to the other main pipe, and the main pipe is provided with a second control valve 24. In addition, the gas delivery pipe in this embodiment may be a main pipe and two branch pipes, the main pipe communicates with the compressed gas source and the branch pipes, one branch pipe is connected to the first pneumatic shutoff device 13, the first control valve 23 is disposed on the branch pipe, the other branch pipe is connected to the second pneumatic shutoff device 14, and the second control valve 24 is disposed on the branch pipe. When the first control valve 23 is actuated, the first pneumatic cut-off device 13 can be communicated with the compressed air source or the atmosphere, the first pneumatic cut-off device 13 is inflated or deflated to restore the natural state, when the second control valve 24 is actuated, the second pneumatic cut-off device 14 can be communicated with the compressed air source or the atmosphere, and the second pneumatic cut-off device 14 is inflated or deflated to restore the natural state.
In this embodiment, a solar panel or a wind power generator may be installed beside the diversion well 10 to supply power to the controller 40 and the control valve 20; and/or, a battery for powering the controller 40 and the control valve 20; and/or the control valve 20 is a two-position three-way control valve 20 or a solenoid valve combination.
The dynamic flow distributing well 10 in this embodiment is disposed in a rainwater pipe of a flow distributing district, a confluence pipe of a confluence flow distributing district, or a mixed flow pipe of a mixed flow distributing district, or a pipeline before entering a discharge port of a natural water body. The application environment is various, and the popularization is strong.
The inside liquid level meter 31, the outside liquid level meter 30, the first control valve 23 and the second control valve 24 are respectively in signal connection with the controller 40,
the in-well liquid level meter 31 and the out-of-well liquid level meter 30 are used for transmitting the acquired information of the in-well liquid level and the out-of-well liquid level to the controller 40, and the controller 40 is used for controlling the action of the control valve 20 according to the relation between the out-of-well liquid level and the in-well liquid level.
The pneumatic cut-off device in the embodiment is an air bag or a pneumatic pipe clamping valve, the air bag is provided with an air inlet, and the air inlet is connected with the gas conveying branch pipe; the pneumatic pinch valve also has a gas inlet connected to the gas delivery manifold. The control valve is a three-way electromagnetic valve or an electromagnetic valve group.
Example 3
On the basis of the embodiments 1 and 2, the system further comprises other measuring instruments for detecting the measurement information inside or outside the diversion well 10, wherein the measuring instruments comprise one or more of a rain gauge, a flow meter, a water gauge, a timer and a water quality monitor, and correspondingly, the measurement information comprises one or more of rainfall, instantaneous flow, accumulated flow, rainfall time and water quality.
Wherein, the rain gauge is arranged outside the diversion well 10, the rainfall is monitored, and the rainfall is monitored to be 0 in sunny days;
the flow meters are arranged on the first outlet and the second outlet of the flow dividing well 10 and are used for monitoring instantaneous flow values passing through the first outlet and the second outlet and calculating the instantaneous flow entering the flow dividing well 10 according to the instantaneous flow values;
the water meter is arranged on the water inlet 12 of the flow dividing well 10 and measures the accumulated flow entering the flow dividing well 10;
the timer is arranged in the diversion well 10 and used for monitoring the raining time, and the time value monitored by the timer is 0 in sunny days;
the water quality monitor is a COD sensor and is arranged in the diversion well 10, and the COD concentration value of the water body in the diversion well 10 is monitored.
The control method of the shunt system in this embodiment is as follows:
the method includes the following steps based on embodiment 1 when the measuring instrument 30 is one or more of a rain gauge, a flow meter, a water gauge, a timer and a liquid level meter, the preset alarm level value H and a first threshold value Q0, the in-well level value H1 in the diversion well body 11 collected by the in-well level meter 31, the out-well level value H2 outside the diversion well body 11 collected by the out-well level meter 30, and the measurement information collected by the measuring instrument is Q
When the backflow preventing program exits, if Q is less than Q1, the controller 40 controls the second control valve 24 to act, so that the second pneumatic cut-off device 14 is deflated, the second water outlet pipe 17 is conducted, at this time, the first control valve 23 is controlled to act or not act according to the state of the first water outlet pipe 16, so that the first pneumatic cut-off device 13 is inflated, and the first water outlet pipe 16 is cut off;
when the backflow preventing program exits, if Q is larger than or equal to Q1, the second control valve 24 does not act, the second water outlet pipe 17 is cut off, and the first control valve 23 is controlled to act or not act, so that the first pneumatic cut-off device 13 is deflated, and the first water outlet pipe 16 is conducted.
Example 4
Example 4 differs from example 3 in that: the form of reposition of redundant personnel well 10 is form two, and the height of intaking of first export is higher than second water inlet 12 greatly, and at this moment, only need set up second pneumatic cut-off equipment 14 on second outlet pipe 17, set up second control valve 24 can.
When the backflow preventing program exits, if Q is less than Q1, the controller 40 controls the second control valve 24 to act, so that the second pneumatic cut-off device 14 deflates, the second water outlet pipe 17 is conducted, and the first water outlet pipe 16 is cut off due to the existence of the height difference;
when the backflow preventing program is quitted, if Q is larger than or equal to Q1, the second control valve 24 does not act, the second water outlet pipe 17 is stopped, and the water level in the diversion well 10 rises and overflows through the second water outlet pipe 17.
Example 5
Referring to fig. 4, 5, and 6, embodiment 5 differs from embodiment 3 in that: the form of reposition of redundant personnel well 10 is the form three, still include the third export on the reposition of redundant personnel well body 11, the rainwater pipe or natural water are communicate through first outlet pipe 16 in the first export, second outlet pipe 17 communicates the sewage pipe, regulation pond or sewage treatment facility through second outlet pipe 17, the first rainwater pipe or initial stage rainwater treatment facility are communicated through third outlet pipe 18 in the third export, the form of reposition of redundant personnel well 10 is the form three, be equipped with first pneumatic cut-off equipment 13 on first outlet pipe 16, second outlet pipe 17 and the third outlet pipe 18 respectively, the pneumatic cut-off equipment of second 14, the pneumatic cut-off equipment of third 15. Three main pipes can be arranged, a third control valve 25 is arranged on the third main pipe and used for controlling the third pneumatic cut-off device 15 to be inflated and deflated, and the third control valve 25 can also be arranged on the branch pipe and connected with the main pipes.
When the backflow preventing program is quitted, if Q is less than Q0, the controller 40 controls the second control valve 24 to act, so that the second pneumatic cut-off device 14 deflates, the second water outlet pipe 17 is conducted, and according to the states of the first water outlet pipe 16 and the third water outlet pipe 18 at the moment, the controller 40 controls the first control valve 23 and the third control valve 25 to act or not to act, so that the first pneumatic cut-off device 13 and the third pneumatic cut-off device 15 are inflated, and the first water outlet pipe 16 and the third water outlet pipe 18 are cut off;
when the backflow preventing program exits, if Q0 is not more than Q < Q1, the controller 40 controls the first control valve 23 and the third control valve 25 to act or not to act according to the states of the first water outlet pipe 16 and the third water outlet pipe 18 at the moment, so that the third pneumatic cut-off device 15 is deflated, the third water outlet pipe 18 is conducted, so that the first pneumatic cut-off device 13 is inflated, the first water outlet pipe 16 is cut off, and according to whether the device connected with the second water outlet pipe 17 has receiving capacity or not, the second control valve 24 can act or not at the moment, so that the second water outlet pipe 17 is conducted or in a cut-off state, if the receiving capacity exists, the second pneumatic cut-off device 14 is deflated, the second water outlet pipe 17 is conducted, and if the receiving capacity does not exist, the second pneumatic cut-off device 14 is inflated, and the second;
when the backflow preventing program exits, if Q1 is not greater than Q, the controller 40 controls the third control valve 25 to act or not to act according to the states of the first water outlet pipe 16 and the third water outlet pipe 18 at the moment, so that the third pneumatic cut-off device 15 is inflated, the third water outlet pipe 18 is stopped, the first pneumatic cut-off device 13 is deflated, the first water outlet pipe 16 is conducted, and the second control valve 24 is not operated at the moment, so that the second water outlet pipe 17 is in a stop state.
Example 6
Example 5 differs from example 3 in that: because the water inlet height of the first water outlet pipe 16 is far greater than the water inlet height of the second water outlet pipe 17 and the third water outlet pipe 18, only the second water outlet pipe 17 and the third water outlet pipe 18 are respectively provided with the second pneumatic cut-off device 14 and the third pneumatic cut-off device 15, and the second control valve 24 and the third control valve 25 are respectively used for controlling the inflation or deflation of the second pneumatic cut-off device 14 and the third pneumatic cut-off device 15.
When the backflow preventing program exits, if Q is less than Q0, the controller 40 controls the second control valve 24 to act, so that the second pneumatic cut-off device 14 is deflated, the second water outlet pipe 17 is conducted, and according to the state of the third water outlet pipe 18 at the moment, the controller 40 controls the third control valve 25 to act or not to act, so that the third pneumatic cut-off device 15 is inflated, and the third water outlet pipe 18 is cut off;
when the backflow preventing program exits, if Q0 is not more than Q < Q1, the controller 40 controls the third control valve 25 to act or not to act according to the state of the third water outlet pipe 18 at the moment, so that the third pneumatic cut-off device 15 is deflated, the third water outlet pipe 18 is conducted, and according to whether the device connected with the second water outlet pipe 17 has receiving capacity or not, the second control valve 24 can act or not to act at the moment, so that the second water outlet pipe 17 is conducted or in a cut-off state, if the receiving capacity exists, the second pneumatic cut-off device 14 is deflated, the second water outlet pipe 17 is conducted, and if the receiving capacity does not exist, the second pneumatic cut-off device 14 is inflated, and the second water outlet pipe 17 is cut off;
when the backflow preventing program exits, if Q1 is not greater than Q, the controller 40 controls the third control valve 25 to operate or not to operate according to the state of the third water outlet pipe 18 at this time, so that the third pneumatic cut-off device 15 inflates air, the third water outlet pipe 18 is stopped, and the second control valve 24 does not operate at this time, so that the second water outlet pipe 17 is in a stop state.
Example 7
When the diverter well 10 is in the form of the first form or the second form, the controller 40 further includes a first arming water level H3, wherein,
when the diverter well 10 is in the form of a first,
when the backflow preventing program is quitted, if H1 is less than H3, the controller 40 controls the second control valve 24 to act, the second pneumatic cut-off device 14 is deflated, the second water outlet pipe 17 is conducted, and the first control valve 23 is controlled to act or not act according to the current state of the first water outlet pipe 16, so that the first pneumatic cut-off device 13 is inflated, and the first water outlet pipe 16 is cut off;
when the backflow preventing program is exited, if H1 is not less than H3, the controller 40 controls the second control valve 24 to stop acting, the second pneumatic cut-off device 14 is inflated, the second water outlet pipe 17 is stopped, and the first control valve 23 is controlled to act or not act according to the current state of the first water outlet pipe 16, so that the first pneumatic cut-off device 13 is deflated, and the first water outlet pipe 16 is conducted;
when the diverter well 10 is in the form of the second type,
when the backflow preventing program is quitted, if H1 is less than H3, the controller 40 controls the second control valve 24 to act, the second pneumatic cut-off device 14 is deflated, and the second water outlet pipe 17 is conducted;
when the backflow preventing program is quitted, if H1 is not less than H3, the controller 40 controls the second control valve 24 not to act, the second pneumatic cut-off device 14 is inflated, and the second water outlet pipe 17 is stopped;
when the diverter well 10 is in the form of either the form three or the form four, the controller 40 further includes a first arming water level H3 and a first arming water level H4, wherein,
when the diverter well 10 is in the form of the form three,
when the backflow preventing program is quitted, if H1 is less than H3, the controller 40 controls the second control valve 24 to act, the second pneumatic cut-off device 14 is deflated, the second water outlet pipe 17 is conducted, and the first control valve 25 and the third control valve 25 are controlled to act or not act according to the current states of the first water outlet pipe 18 and the third water outlet pipe 18, so that the first pneumatic cut-off device 15 and the third pneumatic cut-off device 15 are inflated, and the first water outlet pipe 18 and the third water outlet pipe 18 are stopped;
when the backflow preventing program exits, if H1 is less than or equal to H3 and less than H4, the controller 40 controls the first and third control valves 25 to act or not to act according to the current states of the first and third water outlet pipes 18, so that the first pneumatic cut-off device 13 is inflated, the third pneumatic cut-off device 15 is deflated, the first water outlet pipe 16 is stopped, the third water outlet pipe 18 is communicated, at the moment, the second control valve 24 acts or does not act, the second pneumatic cut-off device 14 is deflated or inflated, and the second water outlet pipe 17 is communicated or stopped;
when the backflow preventing program is exited, if H1 is not less than H4, the controller 40 controls the second control valve 24 to stop acting, the second pneumatic cut-off device 14 is inflated, the second water outlet pipe 17 is stopped, and the first control valve 25 and the third control valve 25 are controlled to act or not act according to the current states of the first water outlet pipe 18 and the third water outlet pipe 18, so that the first pneumatic cut-off device 13 is deflated, the third pneumatic cut-off device 15 is inflated, the first water outlet pipe 16 is communicated, and the third water outlet pipe 18 is stopped;
when the diverter well 10 is in the form of a diverter well four,
when the backflow preventing program is exited, if H1 is less than H3, the controller 40 controls the second control valve 24 to act, the second pneumatic cut-off device 14 is deflated, the second water outlet pipe 17 is conducted, and the third control valve 25 is controlled to act or not act according to the current state of the third water outlet pipe 18, so that the third pneumatic cut-off device 15 is inflated, and the third water outlet pipe 18 is stopped;
when the backflow preventing program is quitted, if H1 is less than or equal to H3 and less than H4, the controller 40 controls the third control valve 25 to act or not to act according to the current state of the third water outlet pipe 18, so that the third pneumatic cut-off device 15 is deflated, the third water outlet pipe 18 is conducted, at the moment, the second control valve 24 acts or does not act, the second pneumatic cut-off device 14 is deflated or inflated, and the second water outlet pipe 17 is conducted or stopped;
when the backflow preventing program is exited, if the H1 is not less than H4, the controller 40 controls the second control valve 24 to stop acting, the second pneumatic cut-off device 14 is inflated, the second water outlet pipe 17 is stopped, and the third control valve 25 is controlled to act or not act according to the current state of the third water outlet pipe 18, so that the third pneumatic cut-off device 15 is inflated, and the third water outlet pipe 18 is stopped.
In the embodiments 2 to 6, the first pneumatic intercepting device is disposed in the diversion well body at the start end of the first outlet, or on the pipeline of the first water outlet pipe; and/or the second pneumatic cut-off device is arranged on the start end of the second outlet of the diversion well body or on the pipeline of the second water outlet pipe; and/or the third pneumatic cut-off device is arranged at the starting end of a third water outlet or on a third water outlet pipe of the diversion well body.
When carrying out the sewage reposition of redundant personnel, can prevent effectively that sewage from flowing backward and entering into reposition of redundant personnel well 10 in, pollute outer river course, after removing the procedure of flowing backward, shunt according to original control procedure, do not influence subsequent rain and sewage reposition of redundant personnel.
The present invention is not limited to the above embodiments, and for those skilled in the art, a plurality of improvements and decorations can be made without departing from the principle of the present invention, and these improvements and decorations are also considered to be within the protection scope of the present invention. Those not described in detail in this specification are within the skill of the art.
Claims (7)
1. A backflow prevention system for a sewage pipe and/or an initial rain pipe of a diversion well is characterized in that,
the method comprises the following steps:
a compressed gas source for providing compressed gas;
the gas conveying pipe is communicated with the outlet of the compressed gas source and is used for conveying compressed gas;
the control valve is connected with the gas conveying pipe;
the controller is connected with the control valve and is used for controlling the control valve to act; and
the pneumatic flow-dividing well is provided with a flow-dividing well,
the pneumatic flow dividing well comprises a flow dividing well body, a pneumatic cut-off device and an in-well liquid level meter arranged in the flow dividing well body,
the diversion well body is provided with a water inlet and at least two water outlets which are respectively a first outlet and a second outlet, the first outlet is connected with a natural water body or a rainwater pipe through a first water outlet pipe, the second outlet is connected with a sewage pipe or a primary rainwater pipe through a second water outlet pipe, at least the second water outlet pipe is provided with a pneumatic cut-off device which is a second pneumatic cut-off device,
an outdoor liquid level meter is arranged outside the diversion well body at the downstream of the second water outlet pipe, the control valve is a second control valve, and the second control valve is connected with the gas conveying pipe and used for controlling the inflation and deflation of the second pneumatic cut-off device and corresponding to the cut-off or conduction of the second water outlet pipe;
the second water outlet pipe is communicated with the sewage pipe or the primary rain pipe through a sewage well, and an outdoor liquid level meter is arranged in the sewage well;
the liquid level meter in the well, the liquid level meter outside the well and the second control valve are respectively connected with the controller by signals,
the controller is used for controlling the second control valve to act according to the relation between the liquid level outside the well and the liquid level inside the well;
and the inspection well is connected with the pneumatic diversion well through the second water outlet pipe, and an outdoor liquid level meter is arranged in the inspection well.
2. The anti-backflow system for sewer pipes and/or primary rain pipes of a diverter well according to claim 1, further comprising:
the solar panel or the wind driven generator is used for supplying power to the controller and the control valve;
and/or, a storage battery for supplying power to the controller and the control valve;
and/or the control valve is a two-position three-way control valve or an electromagnetic valve combination.
3. The backflow prevention system of a sewer pipe and/or a primary rain pipe of a diverter well according to claim 1, wherein the pneumatic cut-off device is an air bag or a pneumatic pinch valve,
the air bag is provided with an air inlet which is connected with the gas conveying branch pipe;
the pneumatic pinch valve also has a gas inlet that is connected to the gas delivery manifold.
4. The anti-backflow system for the sewer pipe and/or the primary rain pipe of a diverter well according to claim 1, wherein:
the pneumatic flow dividing well is in a first form, a water inlet, a first outlet and a second outlet are formed in the flow dividing well body, the first water outlet pipe and the second water outlet pipe are respectively provided with the pneumatic cut-off devices which are respectively a first pneumatic cut-off device and a second pneumatic cut-off device, the first pneumatic cut-off device and the second pneumatic cut-off device are connected with the gas conveying pipe, and the control valves are a first control valve and a second control valve which are connected with the gas conveying pipe;
or, the form of pneumatic reposition of redundant personnel well is form two, works as the level height in the feed liquor position of first export is higher than when the level height in the feed liquor position of second export, sets up one pneumatic cut-off equipment is the pneumatic cut-off equipment of second, the pneumatic cut-off equipment of second is located on the second outlet pipe.
5. The anti-backflow system for the sewer pipe and/or the primary rain pipe of a diverter well according to claim 1, wherein: the diversion well body also comprises a third outlet, the first outlet is communicated with a rainwater pipe or a natural water body through a first water outlet pipe, the second outlet is communicated with a sewage pipe through a second water outlet pipe, the third outlet is communicated with a primary rainwater pipe through a third water outlet pipe, wherein,
the diversion well is in a third form, the first water outlet pipe, the second water outlet pipe and the third water outlet pipe are respectively provided with a first pneumatic cut-off device, a second pneumatic cut-off device and a third pneumatic cut-off device, and the diversion well further comprises a first control valve and a third control valve which are used for controlling the inflation and deflation of the first pneumatic cut-off device and the third pneumatic cut-off device;
or, the form of pneumatic reposition of redundant personnel well is form four, works as the level height of the feed liquor position of first export is higher than during the level height of the feed liquor position of second export, third export, sets up two pneumatic cut-off equipment, respectively be with the pneumatic cut-off equipment of second that the second outlet pipe links to each other and the pneumatic cut-off equipment of third of setting on the third outlet pipe still include the third control valve for control the pneumatic cut-off equipment of third fills, outgases.
6. The anti-backflow system for the sewer pipe and/or the primary rain pipe of a diverter well according to claim 5, wherein:
the first pneumatic cut-off device is arranged in the diversion well body and positioned at the starting end of the first outlet or on a pipeline of the first water outlet pipe;
and/or the second pneumatic cut-off device is arranged on the start end of the second outlet of the diversion well body or on the pipeline of the second water outlet pipe;
and/or the third pneumatic cut-off device is arranged at the starting end of a third water outlet or on a third water outlet pipe of the diversion well body.
7. The anti-backflow system for sewer pipes and/or primary rain pipes of a diverter well according to claim 1, wherein:
the system also comprises a measuring instrument used for detecting the measuring information in or out of the shunt well, the measuring instrument comprises one or more of a rain gauge, a flow meter, a water gauge, a timer and a water quality detector,
the corresponding measurement information comprises one or more of rainfall, instantaneous flow, accumulated flow, rainfall time and water quality.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821773101.2U CN209907521U (en) | 2018-10-30 | 2018-10-30 | Backflow prevention system for sewage pipe and/or primary rain pipe of flow dividing well |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821773101.2U CN209907521U (en) | 2018-10-30 | 2018-10-30 | Backflow prevention system for sewage pipe and/or primary rain pipe of flow dividing well |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209907521U true CN209907521U (en) | 2020-01-07 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821773101.2U Active CN209907521U (en) | 2018-10-30 | 2018-10-30 | Backflow prevention system for sewage pipe and/or primary rain pipe of flow dividing well |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209907521U (en) |
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2018
- 2018-10-30 CN CN201821773101.2U patent/CN209907521U/en active Active
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Address after: No. 509 Weihu Road, Shamao Street, Hannan District, Wuhan City, Hubei Province, 430000 Patentee after: Wuhan Shengyu Smart Ecological Environmental Protection Co.,Ltd. Address before: 430000, No. 189, Minli North Road, Wuhan Economic and Technological Development Zone, Hubei Province Patentee before: WUHAN SHENGYU DRAINAGE SYSTEM Co.,Ltd. |
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