CN107558593B

CN107558593B - Drainage system comprising one-in four-out type diversion well and drainage control method

Info

Publication number: CN107558593B
Application number: CN201710915304.4A
Authority: CN
Inventors: 周超; 覃应机
Original assignee: Wuhan Shengyu Drainage Systems Co Ltd
Current assignee: Wuhan Shengyu Smart Ecological Environmental Protection Co ltd
Priority date: 2017-09-30
Filing date: 2017-09-30
Publication date: 2023-08-29
Anticipated expiration: 2037-09-30
Also published as: CN107558593A

Abstract

The invention discloses a drainage system comprising a four-in and four-out type diversion well and a drainage control method, wherein the drainage system comprises a regulation and storage facility, an online treatment facility and an integrated treatment facility, and the integrated treatment facility can replace the function of a sewage treatment plant to treat the domestic sewage and the water body of initial rainwater stored in the regulation and storage facility; the online treatment facility can treat the rainwater in the middle and later stages; the use of the drainage system can achieve the target discharge standard of dirty water inlet-purified water outlet. The drainage system is provided with the control system, manual operation is not needed in the use process, automatic adjustment of the water conservancy switch can be achieved through the control unit, reasonable water discharge is achieved through reasonable control of the opening of the water conservancy switch and related components in the drainage system, flood discharge safety is guaranteed, and meanwhile dirty water or initial rainwater is intercepted to a sewage interception pipe and a regulation facility to the greatest extent.

Description

Drainage system comprising one-in four-out type diversion well and drainage control method

Technical Field

The invention belongs to the technical field of drainage, and particularly relates to a drainage system comprising a one-in four-out type diversion well and a drainage control method.

Background

At present, drainage systems of cities and building groups mainly comprise a diversion system, a confluence system and a mixed flow system, and the main purpose of the drainage systems is to collect, convey and treat water bodies. For example, a system for treating all waste water in one way is called a combined system. It has only one drainage system, called confluence system, and its drainage pipeline is called confluence pipeline. The system for treating wastewater with different properties in different ways is called split system, and generally has two drainage systems. One, which may be referred to as a rainwater system, is used to collect rainwater and low-pollution industrial wastewater that is directly discharged from a water body without treatment, and the pipeline is called a rainwater pipeline. Another type of system may be called a sewage system, in which domestic sewage is collected and industrial waste water which needs to be treated before it is discharged, and a pipeline thereof is called a sewage pipeline. The mixed flow system is a system between the split flow system and the combined flow system, and is mainly caused by that part of pipelines are connected in a staggered manner, mixed manner and the like in the split flow system area, so that wastewater with different properties appears in part of pipelines, namely, a rainwater pipeline or a sewage pipeline is actually changed into a combined flow pipeline. The wastewater in municipal sewage pipelines and converging pipelines is often referred to collectively as municipal wastewater.

With the advent of modern house sanitary equipment and high-rise buildings, the population is dense, and the feces are conveyed by water flow, so that the strength of urban sewage is greatly increased; in addition, the industrial wastewater is greatly increased, and intolerable pollution is caused in rivers and lakes near the city. And then, adding a sewage treatment plant, connecting the sewage treatment plant with each water outlet by using a pipeline, and collecting and treating the wastewater in each drainage main pipe by using the sewage treatment plant to form a closure type converging system. The pipeline which is connected with the water outlet and intercepts wastewater to the sewage treatment plant is called an intercepting pipeline or a sewage intercepting pipeline.

The amount of wastewater suddenly increases during rainfall, and if all the wastewater is trapped, the interception pipeline and the sewage treatment plant are inevitably required to be large in scale, and engineering cost is excessively increased. The manhole at the intersection of the drain main and the cutoff pipe is typically replaced with a diverter well. The structure of the diversion well can have different designs, but the current design is not perfect, and no improvement is made for different sewage and rain water quantities. In dry seasons, only sewage is contained in the pipe, so that the sewage can be caught by the diversion well and flows to the sewage pipe; during rainy season, part of rainwater and sewage are caught and flow into the sewage pipe, and the rest rainwater overflows through the well weir and flows to the downstream. Most of the current control methods for the flow direction of rainwater and sewage adopt water level or rainfall to control, but the current water level control method or rainfall control method is not good for the diversion control of the rainwater and the sewage, so that the meaning of a diversion well is lost.

Disclosure of Invention

In order to solve the defects of the prior art, the invention provides a drainage system comprising a one-inlet four-outlet type diversion well and a drainage control method, wherein the drainage system is used for intercepting and diverting rainwater and/or sewage, and the reasonable regulation and control are adopted to reasonably divert water and realize reasonable allocation of resources.

The invention provides the following technical scheme:

a drainage system comprises a diversion well, wherein the diversion well comprises a diversion well body and five openings which are respectively a water inlet, a first water outlet, a second water outlet, a third water outlet and a fourth water outlet, wherein the five openings are arranged in the diversion well body;

the drainage system further comprises a regulation and storage facility, an online treatment facility and an integrated treatment facility, wherein the integrated treatment facility is connected with the first water outlet through the regulation and storage facility; the on-line treatment facility is connected with the second water outlet;

the drainage system further comprises a first water conservancy switch, a second water conservancy switch, a third water conservancy switch, a fourth water conservancy switch and an eighth water conservancy switch; the first water conservancy switch is arranged near the first water outlet and used for controlling the water passing quantity passing through the first water outlet; a second water conservancy switch is arranged near the second water outlet and is used for controlling the water passing quantity passing through the second water outlet; a third water conservancy switch is arranged near the third water outlet and is used for controlling the water passing quantity passing through the third water outlet; a fourth water conservancy switch is arranged near the fourth water outlet and is used for controlling the water passing quantity passing through the fourth water outlet; an eighth water conservancy switch is arranged near the outlet end of the regulation facility or the inlet end of the integrated treatment facility and is used for controlling the water passing through the outlet end of the regulation facility or the inlet end of the integrated treatment facility.

The invention also provides a drainage control method of the drainage system, which comprises at least one of a water level method, a water quality-water level method, a time-water level method, a total amount-water level method and a rainfall-water level method.

The invention has the beneficial effects that:

(1) The drainage system comprises a regulation and storage facility, an online treatment facility and an integrated treatment facility, wherein the integrated treatment facility can replace the function of a sewage treatment plant to treat the water body of domestic sewage and initial rainwater stored in the regulation and storage facility; the online treatment facility can treat the rainwater in the middle and later stages; the use of the drainage system can achieve the target discharge standard of dirty water inlet-purified water outlet.

(2) The drainage system has the advantages of small occupied area, powerful functions and the like, and can realize effective separation treatment of rainwater and sewage by using a small amount of land area. The use of the drainage system is not limited by occasions, and the drainage system can be suitable for any pipe network in the drainage pipe network system.

(3) The drainage system is provided with the control system, manual operation is not needed in the use process, automatic adjustment of the water conservancy switch can be realized through the control unit, the drainage system has the characteristics of flexibility, variability and the like, and a large amount of manpower and material resources are reduced. Specifically, the drainage system has the effect of intelligent drainage, reasonable water discharge is realized by reasonably controlling the opening of the water conservancy switch and related components in the drainage system through the control system, and dirty water or initial rainwater is stopped to the sewage interception pipe and/or the regulation facility to the greatest extent while the flood discharge safety is ensured.

(4) The drainage control method comprises a water level method, a water quality-water level method, a time-water level method, a total amount-water level method and a rainfall-water level method, and the method effectively solves the problems that a sewage interception pipe cannot limit current, clean water or later rainwater can enter the sewage interception pipe to be conveyed to a sewage treatment plant in the prior art. Through reasonable control dirty water, initial rainwater and the drainage way of middle and later period rainwater, the dirty water is stopped to a dirty pipe and/or a regulation facility to the maximum extent, and cleaner water is discharged to a natural water body.

(5) According to the drainage control method, when rainfall occurs, the initial rainwater which cannot be intercepted in time to a sewage treatment plant is sent to a regulation facility for storage due to high rainfall intensity, and the later clean rainwater is directly discharged to a natural water body, so that the overflow times and overflow quantity of the rainwater during rainfall can be reduced, and the overflow pollution of the rainwater is reduced.

Drawings

FIG. 1 is a schematic view showing a structure of a drainage system according to a preferred embodiment of the present invention;

wherein, 1-water inlet; 2-a first water outlet; 3-a second water outlet; 4-a third water outlet; 5-a fourth water outlet; 6-splitting the well body; 7-a first water conservancy switch; 8-a second water conservancy switch; 9-a third water conservancy switch; 10-a fourth water conservancy switch; 11-a regulation facility; 12-an on-line treatment facility; 13-integrated treatment facility.

Detailed Description

[ drainage System ]

A first aspect of the present invention provides a drainage system, the drainage system comprising a diversion well, the diversion well comprising a diversion well body and five openings arranged in the diversion well body, which are a water inlet, a first water outlet, a second water outlet, a third water outlet and a fourth water outlet, respectively;

In a preferred embodiment of the present invention, the drainage system further comprises a control system including a first monitoring device, a second monitoring device, and a control unit in signal connection with both; the control unit is in signal connection with the first water conservancy switch, the second water conservancy switch, the third water conservancy switch, the fourth water conservancy switch and the eighth water conservancy switch; the first monitoring device and the second monitoring device are used for monitoring signals and transmitting the monitored signals to the control unit, and the control unit controls the opening degrees of the first hydraulic switch, the second hydraulic switch, the third hydraulic switch, the fourth hydraulic switch and the eighth hydraulic switch according to the received signals.

In a preferred embodiment of the invention, the drainage system further comprises a sewage interception pipe, through which the first water outlet is connected to a pipeline leading to a sewage treatment plant.

In a preferred embodiment of the invention, the regulation facility is connected to the second water outlet via a pipe or gallery; the regulation facility is connected with the inlet end of the integrated treatment facility through a pipeline or a gallery; the outlet end of the integrated treatment facility is connected with a pipeline leading to the natural water body or directly connected with the natural water body.

In a preferred embodiment of the invention, the on-line treatment facility is connected to the third water outlet via a pipe or gallery; the outlet end of the on-line treatment facility is connected with a pipeline leading to the natural water body.

In a preferred embodiment of the present invention, the drainage system further comprises a water outlet pipe; the fourth water outlet is connected with a pipeline leading to the natural water body through a water outlet pipe.

The drainage system reasonably arranges the sewage interception pipe, the regulation and storage facility, the online treatment facility and the integrated treatment facility in one system, thereby maximally realizing the function of a diversion well. Specifically, the introduction of the regulation facility can send the initial rainwater which cannot be stopped in time to a sewage treatment plant to the regulation facility for storage during rainfall, and the later clean rainwater is directly discharged to a natural water body, so that the overflow times and overflow quantity during rainfall can be reduced, and the overflow pollution of the rainwater is reduced; the method has the advantages that the method can effectively solve the problem that the online interception rate of the intercepting pipe is limited by introducing the online treatment facilities to online treat rainwater or confluent sewage, effectively relieve the treatment pressure of the sewage treatment plant in rainy days when the rainfall is uniform and the rainfall history is long, realize the maximum reasonable utilization of resources, and remove and intercept the particulate matters discharged into the rainwater of the natural water body to the maximum extent, so that the natural water body is protected.

In a preferred embodiment of the present invention, the first monitoring device comprises a device for monitoring the water level (such as a liquid level sensor, a liquid level meter, a liquid level switch, etc.), and a device for monitoring the water quality (such as a water quality detector, an on-line COD monitor, an on-line TSS monitor, an on-line BOD monitor, an on-line TN monitor, an on-line TP monitor, an on-line NH) _3- N monitor, online ammonia nitrogen monitor, electrode, conductivity meter, etc.), the device of monitoring total amount of water (for example can be the electric hoist etc. that have the measurement function), the device of monitoring rainfall (such as the rain gauge, etc.), the device of monitoring time (such as the time-recorder, etc.).

In a preferred embodiment of the invention, the first monitoring device may be located inside the diverter well body or outside the diverter well body, depending on the type of requirements. For example, the device for monitoring the water level of the water body and the device for monitoring the water quality of the water body are arranged in the well body of the diversion well, the device for monitoring the rainfall is arranged outside the well body of the diversion well, the device for monitoring the total water body is arranged on a water switch in the well body of the diversion well, and the device for monitoring the time is arranged in the well body of the diversion well or outside the well body of the diversion well.

In a preferred embodiment of the invention, the second monitoring means comprises means for monitoring the level of the body of water (which may be, for example, a level sensor, a level gauge, a level switch, etc.).

In a preferred embodiment of the invention, the second monitoring device is arranged in a regulation facility.

In a preferred embodiment of the present invention, it will be understood by those skilled in the art that the shapes and opening sizes of the water inlet, the first water outlet, the second water outlet, the third water outlet and the fourth water outlet are not particularly limited, and may be matched with the shape of the pipeline connected thereto or the shape of the water conservancy switch arranged thereto. For example, the water inlet, the first water outlet, the second water outlet, the third water outlet and the fourth water outlet are circular in shape.

In a preferred embodiment of the present invention, it will be understood by those skilled in the art that the arrangement order and arrangement manner of the water inlet, the first water outlet, the second water outlet, the third water outlet and the fourth water outlet in the well body of the diversion well are not limited, and the relative positions of the water inlet, the first water outlet, the second water outlet, the third water outlet and the fourth water outlet may be set reasonably according to the area and the topography of the area where the diversion well is disposed. For example, the water inlet, the first water outlet, the second water outlet, the third water outlet and the fourth water outlet are arranged on the side wall of the well body of the diversion well; or the water inlet, the second water outlet, the third water outlet and the fourth water outlet are arranged on the side wall of the well body of the diversion well, a groove is formed in the bottom of the well body of the diversion well, and the first water outlet is arranged in the groove.

When the water inlet, the first water outlet, the second water outlet, the third water outlet and the fourth water outlet are arranged on the side wall of the well body of the diversion well, as will be understood by those skilled in the art, the heights of the bottoms of the water inlet, the first water outlet, the second water outlet, the third water outlet and the fourth water outlet from the bottom of the well of the diversion well are not particularly limited, for example, a pipeline connected with the water inlet is positioned in a high-altitude position, and the water inlet can be arranged at any position on the side wall of the well body of the diversion well; the pipeline connected with the first water outlet, the second water outlet, the third water outlet and the fourth water outlet is positioned at a low-grade position, and the first water outlet, the second water outlet, the third water outlet and the fourth water outlet are arranged at the position, close to the bottom of the diversion well, of the side wall of the diversion well. The purpose of this is to better flow downstream so that water does not build up in the diverter well volume.

When the water inlet, the second water outlet, the third water outlet and the fourth water outlet are arranged on the side wall of the well body of the diversion well, and a groove is formed in the bottom of the well body of the diversion well, and the first water outlet is arranged in the groove, a person skilled in the art can understand that the heights of the bottoms of the water inlet, the second water outlet, the third water outlet and the fourth water outlet from the bottom of the well of the diversion well are not particularly limited, for example, a pipeline connected with the water inlet is positioned in a high topography, and the water inlet can be arranged at any position on the side wall of the well body of the diversion well; the pipeline connected with the second water outlet, the third water outlet and the fourth water outlet is positioned at a low-grade position, the second water outlet, the third water outlet and the fourth water outlet are arranged at the position, close to the bottom of the diversion well, of the side wall of the diversion well, the first water outlet is positioned at a lower grade position, and water preferentially passes through the first water outlet. The purpose of this is to better achieve that no water is accumulated in the body of the shunt well and better flows downstream.

In a preferred embodiment of the present invention, those skilled in the art will understand that the shape of the well body of the diverter well is not particularly limited, and reasonable drainage of the water body may be achieved, for example, the shape of the well body of the diverter well is square or circular.

In a preferred embodiment of the present invention, it will be understood by those skilled in the art that the number and arrangement of the storage facilities in the drainage system are not particularly limited, and may be reasonably arranged according to the area of the area where the system is used, for example, a plurality of storage facilities may be connected in series or in parallel. The regulation facility may be a regulation facility known in the art, including, for example, a regulation tank, a regulation box culvert, a deep tunnel, a shallow tunnel, or the like.

In a preferred embodiment of the present invention, it will be understood by those skilled in the art that the number and arrangement of the in-line processing facilities in the system are not particularly limited, and may be a plurality of in-line processing facilities connected in series or in parallel; the specific arrangement mode can be reasonably arranged according to the area of the area using the system. The on-line treatment facility may be an on-line treatment facility known in the art, including, for example, a biological filter, an on-line treatment tank, a flocculation tank, an inclined plate sedimentation tank, a grit chamber, or an artificial wetland, or the like.

In a preferred embodiment of the present invention, it will be understood by those skilled in the art that the number and arrangement of the integrated treatment facilities in the system are not particularly limited, and may be a plurality of integrated treatment facilities connected in series or parallel; the specific arrangement mode can be reasonably arranged according to the area of the area using the system. The integrated treatment facility may be an integrated treatment facility known in the art, including for example an integrated sewage treatment station or the like.

In a preferred embodiment of the present invention, the first hydraulic switch, the second hydraulic switch, the third hydraulic switch, the fourth hydraulic switch and the eighth hydraulic switch are each independently selected from one of a valve (ball valve, gate valve, knife gate valve, butterfly valve, elevation type rubber plate shutoff check valve, etc.), a gate (upper open gate, lower open gate, etc.), a slice gate (upper open slice gate, lower open slice gate, rotary slice gate, etc.), a flap gate (shutoff flap gate, etc.).

In a preferred embodiment of the invention, the first hydraulic switch may perform a maximum flow restriction function, i.e. to ensure that the flow through the first hydraulic switch does not exceed a set flow value.

In a preferred embodiment of the invention, the second hydraulic switch may perform a maximum flow restriction function, i.e. to ensure that the flow through the second hydraulic switch does not exceed a set flow value.

In a preferred embodiment of the invention, the third hydraulic switch may perform a maximum flow restriction function, i.e. to ensure that the flow through the third hydraulic switch does not exceed a set flow value.

In a preferred embodiment of the invention, the eighth hydraulic switch may perform a maximum flow restriction function, i.e. to ensure that the flow through the eighth hydraulic switch does not exceed a set flow value.

[ drainage control method ]

[ Water level method ]

A second aspect of the present invention provides a drainage control method controlled by a water level method, the drainage control method is based on the drainage system, the drainage system comprises a control system, a first monitoring device in the control system comprises a device for monitoring the water body liquid level and is arranged in a well body of a diversion well, a second monitoring device in the control system comprises a device for monitoring the water body liquid level and is arranged in a regulation facility, and a standard water level H1 of the diversion well, a warning water level H2 of the diversion well and a highest water storage water level H3 of the regulation facility are set in a control unit of the control system; the method comprises the following steps:

1a) Water enters the diversion well from the water inlet, and the water level height H in the well body of the diversion well is monitored in real time through a device for monitoring the water level; monitoring the water level height H4 in the regulation facility in real time through a device for monitoring the water level;

2a) When H is smaller than H1, the first water conservancy switch is in an on state, the second water conservancy switch and the third water conservancy switch are in an off state, the fourth water conservancy switch is in a cut-off state, and the eighth water conservancy switch is in an off state;

3a) When H1 is less than or equal to H2, if H4 is less than H3, the first water conservancy switch and the second water conservancy switch are in an on state, the third water conservancy switch is in an off state, the fourth water conservancy switch is in a cut-off state, the eighth water conservancy switch is in an on state, and the water body is ensured to flow through the eighth water conservancy switch at a constant flow rate; if H4 is more than or equal to H3, the first water conservancy switch is in an on state, the second water conservancy switch is in an off state, the third water conservancy switch is in an on state, the fourth water conservancy switch is in an off state, the eighth water conservancy switch is in an on state, and the water body is ensured to flow through the eighth water conservancy switch at a constant flow rate;

4a) When H is more than or equal to H2, the first water conservancy switch and the third water conservancy switch are in an on state, the second water conservancy switch is in an off state, the fourth water conservancy switch is in an on state, and the eighth water conservancy switch is in an off state.

[ Water quality method ]

A third aspect of the present invention provides a drainage control method controlled by a water quality method, the drainage control method is based on the drainage system, the drainage system comprises a control system, a first monitoring device in the control system comprises a device for monitoring water quality of a water body and is arranged in a well body of a diversion well, a second monitoring device in the control system comprises a device for monitoring water liquid level of the water body and is arranged in a regulation facility, and a standard value C1 of pollutant concentration, an overscale value C2 of pollutant concentration and a highest water storage level H3 of the regulation facility are set in a control unit of the control system; the method comprises the following steps:

1b) The water enters the diversion well from the water inlet, and the water quality C of the water in the diversion well is monitored in real time through a device for monitoring the water quality of the water in the diversion well; monitoring the water level height H4 in the regulation facility in real time through a device for monitoring the water level;

2b) When C is more than or equal to C2, if H4 is less than H3, the first water conservancy switch and the second water conservancy switch are in an on state, the third water conservancy switch is in an off state, the fourth water conservancy switch is in a cut-off state, the eighth water conservancy switch is in an on state, and the water body is ensured to flow through the eighth water conservancy switch at a constant flow rate; if H4 is more than or equal to H3, the first water conservancy switch is in an on state, the second water conservancy switch and the third water conservancy switch are in an off state, the fourth water conservancy switch is in a cut-off state, the eighth water conservancy switch is in an on state, and the water body is ensured to flow through the eighth water conservancy switch at a constant flow rate;

3b) When C2 is more than C1, the first water conservancy switch and the third water conservancy switch are in an on state, the second water conservancy switch is in an off state, the fourth water conservancy switch is in a cut-off state, and the eighth water conservancy switch is in an off state;

4b) When C1 is more than or equal to C, the first water conservancy switch and the second water conservancy switch are in the closed state, the third water conservancy switch is in the open state, the fourth water conservancy switch is in the open state, and the eighth water conservancy switch is in the closed state.

[ Water level-Water quality method ]

A fourth aspect of the present invention provides a drainage control method controlled by a water level-water quality method, the drainage control method is based on the drainage system, the drainage system comprises a control system, a first monitoring device in the control system comprises a device for monitoring the water level of a water body and a device for monitoring the water quality of the water body and is arranged in a well body of a diversion well, a second monitoring device in the control system comprises a device for monitoring the water level of the water body and is arranged in a regulation facility, and a standard water level H1 of the diversion well, a warning water level H2 of the diversion well, a pollutant concentration standard value C1 and a highest water storage water level H3 of the regulation facility are set in a control unit of the control system; the method comprises the following steps:

1c) The water enters the diversion well from the water inlet, the water level height H in the well body of the diversion well is monitored in real time through a device for monitoring the water level, and the water quality C in the well body of the diversion well is monitored in real time through a device for monitoring the water quality of the water; monitoring the water level height H4 in the regulation facility in real time through a device for monitoring the water level;

2c) When H is smaller than H1 and C is larger than C1, the first water conservancy switch is in an on state, the second water conservancy switch and the third water conservancy switch are in an off state, the fourth water conservancy switch is in a cut-off state, and the eighth water conservancy switch is in an off state;

3c) When H is smaller than H1 and C is smaller than or equal to C1, the first water conservancy switch and the second water conservancy switch are in a closed state, the third water conservancy switch is in an open state, the fourth water conservancy switch is in a shut-off state, and the eighth water conservancy switch is in a closed state;

4c) When H1 is less than or equal to H2 and C is more than or equal to C1, if H4 is less than H3, the first water conservancy switch and the second water conservancy switch are in an on state, the third water conservancy switch is in an off state, the fourth water conservancy switch is in a cut-off state, the eighth water conservancy switch is in an on state, and the water body is ensured to flow through the eighth water conservancy switch at a constant flow rate; if H4 is more than or equal to H3, the first water conservancy switch is in an on state, the second water conservancy switch is in an off state, the third water conservancy switch is in an off state, the fourth water conservancy switch is in a cut-off state, the eighth water conservancy switch is in an on state, and the water body is ensured to flow through the eighth water conservancy switch at a constant flow rate;

5c) When H1 is less than or equal to H2 and C is less than or equal to C1, if H4 is less than or equal to H3, the first water conservancy switch is in an off state, the second water conservancy switch and the third water conservancy switch are in an on state, the fourth water conservancy switch is in a cut-off state, the eighth water conservancy switch is in an on state, and the water body is ensured to flow through the eighth water conservancy switch at a constant flow rate; if H4 is more than or equal to H3, the first water conservancy switch and the second water conservancy switch are in the closed state, the third water conservancy switch is in the open state, the fourth water conservancy switch is in the cut-off state, the eighth water conservancy switch is in the open state, and the water body is ensured to flow through the eighth water conservancy switch at a constant flow rate;

6c) When H is more than or equal to H2 and C is more than or equal to C1, if H4 is less than H3, the first water conservancy switch, the second water conservancy switch and the fourth water conservancy switch are in an on state, the third water conservancy switch is in an off state, the eighth water conservancy switch is in an on state, and the water body is ensured to flow through the eighth water conservancy switch at a constant flow rate; if H4 is more than or equal to H3, the first water conservancy switch and the fourth water conservancy switch are in an on state, the second water conservancy switch and the third water conservancy switch are in an off state, and the eighth water conservancy switch is in an on state, so that water body can flow through the eighth water conservancy switch at a constant flow rate;

7c) When H is more than or equal to H2 and C is less than or equal to C1, if H4 is less than H3, the first water conservancy switch is in a closed state, the second water conservancy switch, the third water conservancy switch and the fourth water conservancy switch are in an open state, the eighth water conservancy switch is in an open state, and the water body is ensured to flow through the eighth water conservancy switch at a constant flow rate; if H4 is more than or equal to H3, the first water conservancy switch and the second water conservancy switch are in the closed state, the third water conservancy switch and the fourth water conservancy switch are in the open state, and the eighth water conservancy switch is in the open state, so that the water body can flow through the eighth water conservancy switch at a constant flow rate.

[ Water level-total method ]

A fifth aspect of the present invention provides a drainage control method controlled by a water level-total amount method, the drainage control method is based on the drainage system described above, the drainage system includes a control system, a first monitoring device in the control system includes a device for monitoring total amount of water and is disposed on a first water conservancy switch and a second water conservancy switch in a well body of a diversion well, the first monitoring device in the control system further includes a device for monitoring water level and is disposed in the well body of the diversion well, a second monitoring device in the control system includes a device for monitoring water level and is disposed in a regulation facility, and a standard total amount of initial rain Q3 required to be intercepted by the diversion well, a standard water level H1 of the diversion well, a warning water level H2 of the diversion well, and a highest water storage level H3 of the regulation facility are set in a control unit of the control system; the method comprises the following steps:

1d) In rainy days, water enters the diversion well from the water inlet, the water level height H in the diversion well is monitored in real time through a device for monitoring the water level, and the total water quantity Q1 passing through the first water conservancy switch and the total water quantity Q2 passing through the second water conservancy switch are monitored in real time through a device for monitoring the total water quantity; monitoring the water level height H4 in the regulation facility in real time through a device for monitoring the water level;

2d) When H is smaller than H1 and (Q1 +Q 2) is smaller than Q3, the first water conservancy switch is in an on state, the second water conservancy switch and the third water conservancy switch are in an off state, the fourth water conservancy switch is in a cut-off state, and the eighth water conservancy switch is in an off state;

3d) When H is smaller than H1 and (Q1 +Q 2) is larger than or equal to Q3, the first water conservancy switch and the second water conservancy switch are in a closed state, the third water conservancy switch is in an open state, the fourth water conservancy switch is in a shut-off state, and the eighth water conservancy switch is in a closed state;

4d) When H1 is less than or equal to H2 and (Q1 +Q 2) is less than or equal to Q3, if H4 is less than H3, the first water conservancy switch and the second water conservancy switch are in an on state, the third water conservancy switch is in an off state, the fourth water conservancy switch is in a cut-off state, the eighth water conservancy switch is in an on state, and the water body is ensured to flow through the eighth water conservancy switch at a constant flow rate; if H4 is more than or equal to H3, the first water conservancy switch is in an on state, the second water conservancy switch is in an off state, the third water conservancy switch is in an off state, the fourth water conservancy switch is in a cut-off state, the eighth water conservancy switch is in an on state, and the water body is ensured to flow through the eighth water conservancy switch at a constant flow rate;

5d) When H1 is less than or equal to H2 and (Q1 +Q 2) is more than or equal to Q3, if H4 is less than H3, the first water conservancy switch is in a closed state, the second water conservancy switch and the third water conservancy switch are in an open state, the fourth water conservancy switch is in a shut-off state, the eighth water conservancy switch is in an open state, and the water body is ensured to flow through the eighth water conservancy switch at a constant flow rate; if H4 is more than or equal to H3, the first water conservancy switch and the second water conservancy switch are in the closed state, the third water conservancy switch is in the open state, the fourth water conservancy switch is in the cut-off state, the eighth water conservancy switch is in the open state, and the water body is ensured to flow through the eighth water conservancy switch at a constant flow rate;

6d) When H is more than or equal to H2 and (Q1 +Q 2) is less than Q3, if H4 is less than H3, the first hydraulic switch, the second hydraulic switch and the fourth hydraulic switch are in an on state, the third hydraulic switch is in an off state, the eighth hydraulic switch is in an on state, and the water body is ensured to flow through the eighth hydraulic switch at a constant flow rate; if H4 is more than or equal to H3, the first water conservancy switch and the fourth water conservancy switch are in an on state, the second water conservancy switch and the third water conservancy switch are in an off state, and the eighth water conservancy switch is in an on state, so that water body can flow through the eighth water conservancy switch at a constant flow rate;

7d) When H is more than or equal to H2 and (Q1 +Q 2) is more than or equal to Q3, if H4 is less than H3, the first water conservancy switch is in a closed state, the second water conservancy switch, the third water conservancy switch and the fourth water conservancy switch are in an open state, the eighth water conservancy switch is in an open state, and the water body is ensured to flow through the eighth water conservancy switch at a constant flow rate; if H4 is more than or equal to H3, the first water conservancy switch and the second water conservancy switch are in the closed state, the third water conservancy switch and the fourth water conservancy switch are in the open state, and the eighth water conservancy switch is in the open state, so that the water body can flow through the eighth water conservancy switch at a constant flow rate.

In a preferred embodiment of the invention, the method further comprises the steps of:

8d) When sunny days, the water gets into the reposition of redundant personnel well from the water inlet, and first hydraulic switch is in the open state, and second hydraulic switch and third hydraulic switch are in the closed state, and fourth hydraulic switch is in the state of closure, and eighth hydraulic switch is in the closed state.

[ rainfall-Water level method ]

A sixth aspect of the present invention provides a drainage control method controlled by a rainfall-water level method, the drainage control method is based on the drainage system, the drainage system comprises a control system, a first monitoring device in the control system comprises a device for monitoring rainfall and is arranged outside a well body of a diversion well, a first monitoring device in the control system further comprises a device for monitoring water body liquid level and is arranged in the well body of the diversion well, a second monitoring device in the control system comprises a device for monitoring water body liquid level and is arranged in a regulation facility, and a standard initial rainfall L1 of the diversion well, a standard water level H1 of the diversion well, a warning water level H2 of the diversion well and a highest water storage water level H3 of the regulation facility are set in a control unit of the control system; the method comprises the following steps:

1e) The water enters the diversion well from the water inlet, and the initial rain quantity L is monitored in real time through a device for monitoring the rain quantity;

2e) When l=0, on a sunny day, the first water conservancy switch is in an on state, the second water conservancy switch and the third water conservancy switch are in an off state, the fourth water conservancy switch is in a cut-off state, and the eighth water conservancy switch is in an off state;

3e) When L is more than 0, in rainy days, monitoring the water level height H in the well body of the diversion well in real time through a device for monitoring the water level; monitoring the water level height H4 in the regulation facility in real time through a device for monitoring the water level;

4e) When H is smaller than H1 and L is smaller than 0 and smaller than L1, the first water conservancy switch is in an on state, the second water conservancy switch and the third water conservancy switch are in an off state, the fourth water conservancy switch is in a cut-off state, and the eighth water conservancy switch is in an off state;

5e) When H is smaller than H1 and L is larger than or equal to L1, the first water conservancy switch and the second water conservancy switch are in a closed state, the third water conservancy switch is in an open state, the fourth water conservancy switch is in a shut-off state, and the eighth water conservancy switch is in a closed state;

6e) When H1 is less than or equal to H2 and L is more than or equal to 0 and less than L1, if H4 is less than H3, the first water conservancy switch and the second water conservancy switch are in an on state, the third water conservancy switch is in an off state, the fourth water conservancy switch is in a cut-off state, the eighth water conservancy switch is in an on state, and the water body is ensured to flow through the eighth water conservancy switch at a constant flow rate; if H4 is more than or equal to H3, the first water conservancy switch is in an on state, the second water conservancy switch and the third water conservancy switch are in an off state, the fourth water conservancy switch is in a cut-off state, the eighth water conservancy switch is in an on state, and the water body is ensured to flow through the eighth water conservancy switch at a constant flow rate;

7e) When H1 is less than or equal to H2 and L is more than or equal to L1, if H4 is less than or equal to H3, the first water conservancy switch is in an off state, the second water conservancy switch is in an on state, the third water conservancy switch is in an on state, the fourth water conservancy switch is in a cut-off state, the eighth water conservancy switch is in an on state, and the water body is ensured to flow through the eighth water conservancy switch at a constant flow rate; if H4 is more than or equal to H3, the first water conservancy switch and the second water conservancy switch are in the closed state, the third water conservancy switch is in the open state, the fourth water conservancy switch is in the cut-off state, the eighth water conservancy switch is in the open state, and the water body is ensured to flow through the eighth water conservancy switch at a constant flow rate;

8e) When H is more than or equal to H2 and is more than 0 and less than L1, if H4 is less than H3, the first water conservancy switch, the second water conservancy switch and the fourth water conservancy switch are in an on state, the third water conservancy switch is in an off state, the eighth water conservancy switch is in an on state, and the water body is ensured to flow through the eighth water conservancy switch at a constant flow rate; if H4 is more than or equal to H3, the first water conservancy switch and the fourth water conservancy switch are in an on state, the second water conservancy switch and the third water conservancy switch are in an off state, and the eighth water conservancy switch is in an on state, so that water body can flow through the eighth water conservancy switch at a constant flow rate;

9e) When H is more than or equal to H2 and L is more than or equal to L1, if H4 is less than H3, the first water conservancy switch is in a closed state, the second water conservancy switch, the third water conservancy switch and the fourth water conservancy switch are in an open state, the eighth water conservancy switch is in an open state, and the water body is ensured to flow through the eighth water conservancy switch at a constant flow rate; if H4 is more than or equal to H3, the first water conservancy switch and the second water conservancy switch are in the closed state, the third water conservancy switch and the fourth water conservancy switch are in the open state, and the eighth water conservancy switch is in the open state, so that the water body can flow through the eighth water conservancy switch at a constant flow rate.

[ time-Water level method ]

A seventh aspect of the present invention provides a drainage control method controlled by a time-water level method, the drainage control method is based on the drainage system, the drainage system comprises a control system, a first monitoring device in the control system comprises a device for monitoring time and is arranged in or out of a well body of a diversion well, a first monitoring device in the control system further comprises a device for monitoring water body liquid level and is arranged in the well body of the diversion well, a second monitoring device in the control system comprises a device for monitoring water body liquid level and is arranged in a regulation facility, and a standard time T1, a standard water level H1 of the diversion well, a warning water level H2 of the diversion well and a highest water storage water level H3 of the regulation facility are set in a control unit of the control system; the method comprises the following steps:

1f) When the water enters the diversion well from the water inlet on sunny days, the first water conservancy switch is in an on state, the second water conservancy switch and the third water conservancy switch are in an off state, the fourth water conservancy switch is in a cut-off state, and the eighth water conservancy switch is in an off state;

2f) In rainy days, water enters the diversion well from the water inlet, the water level height H in the diversion well is monitored in real time through a device for monitoring the water level, and the rainfall time T is monitored in real time through a device for monitoring the time; monitoring the water level height H4 in the regulation facility in real time through a device for monitoring the water level;

3f) When H is smaller than H1 and T is smaller than T1, the first water conservancy switch is in an on state, the second water conservancy switch and the third water conservancy switch are in an off state, the fourth water conservancy switch is in a cut-off state, and the eighth water conservancy switch is in an off state;

4f) When H is smaller than H1 and T is larger than or equal to T1, the first water conservancy switch and the second water conservancy switch are in a closed state, the third water conservancy switch is in an open state, the fourth water conservancy switch is in a shut-off state, and the eighth water conservancy switch is in a closed state;

5f) When H1 is less than or equal to H2 and T is less than T1, if H4 is less than H3, the first water conservancy switch and the second water conservancy switch are in an on state, the third water conservancy switch is in an off state, the fourth water conservancy switch is in a cut-off state, the eighth water conservancy switch is in an on state, and the water body is ensured to flow through the eighth water conservancy switch at a constant flow rate; if H4 is more than or equal to H3, the first water conservancy switch is in an on state, the second water conservancy switch and the third water conservancy switch are in an off state, the fourth water conservancy switch is in a cut-off state, the eighth water conservancy switch is in an on state, and the water body is ensured to flow through the eighth water conservancy switch at a constant flow rate;

6f) When H1 is less than or equal to H2 and T is more than or equal to T1, if H4 is less than H3, the first water conservancy switch is in an off state, the second water conservancy switch is in an on state, the third water conservancy switch is in an on state, the fourth water conservancy switch is in a cut-off state, the eighth water conservancy switch is in an on state, and the water body is ensured to flow through the eighth water conservancy switch at a constant flow rate; if H4 is more than or equal to H3, the first water conservancy switch and the second water conservancy switch are in the closed state, the third water conservancy switch is in the open state, the fourth water conservancy switch is in the cut-off state, the eighth water conservancy switch is in the open state, and the water body is ensured to flow through the eighth water conservancy switch at a constant flow rate;

7f) When H is more than or equal to H2 and T is less than T1, if H4 is less than H3, the first water conservancy switch, the second water conservancy switch and the fourth water conservancy switch are in an on state, the third water conservancy switch is in an off state, the eighth water conservancy switch is in an on state, and the water body is ensured to flow through the eighth water conservancy switch at a constant flow rate; if H4 is more than or equal to H3, the first water conservancy switch and the fourth water conservancy switch are in an on state, the second water conservancy switch and the third water conservancy switch are in an off state, and the eighth water conservancy switch is in an on state, so that water body can flow through the eighth water conservancy switch at a constant flow rate;

8f) When H is more than or equal to H2 and T is more than or equal to T1, if H4 is less than H3, the first water conservancy switch is in a closed state, the second water conservancy switch, the third water conservancy switch and the fourth water conservancy switch are in an open state, the eighth water conservancy switch is in an open state, and the water body is ensured to flow through the eighth water conservancy switch at a constant flow rate; if H4 is more than or equal to H3, the first water conservancy switch and the second water conservancy switch are in the closed state, the third water conservancy switch and the fourth water conservancy switch are in the open state, and the eighth water conservancy switch is in the open state, so that the water body can flow through the eighth water conservancy switch at a constant flow rate.

[ concrete limitation of the above method ]

In a preferred embodiment of the invention, the standard water level H1 of the diverter well is set according to the height of the average topography point in the area corresponding to the water receiving area of the diverter well when the risk of water accumulation occurs.

In a preferred embodiment of the invention, the warning water level H2 of the diverter well is set in the control unit of the control system according to the height of the diverter well corresponding to the lowest point of the topography in the water receiving area when there is a risk of water accumulation.

In a preferred embodiment of the invention, the highest water storage level H3 of the regulation facility is set in the control unit of the control system as a function of the capacity of the regulation facility.

In a preferred embodiment of the invention, the device for monitoring the water body liquid level is a liquid level sensor, a liquid level meter, a liquid level switch and the like.

In a preferred embodiment of the present invention, the standard value of the pollutant concentration C1 is set in the control unit of the control system according to the environmental capacity of the natural water discharged and the quality of the water entering the diversion well.

In a preferred embodiment of the invention, the pollutant concentration superscalar C2 is set in the control unit based on the environmental capacity of the natural body of water being discharged and the quality of the body of water entering the diversion well and the highest pollutant concentration that can be treated by the on-line treatment facility.

In a preferred embodiment of the invention, the device for monitoring the water quality of the water body is a water quality detector, an online COD monitor, an online ammonia nitrogen monitor, an online TSS monitor, an online BOD monitor and an online NH _3- N monitor, online TP monitor, online TN monitor, electrode, conductivity meter, etc., which monitor the concentration of pollutants in water in the well body of the shunt well, wherein the pollutants comprise TSS, COD, BOD, NH _3- N, TN or TP.

In a preferred embodiment of the present invention, the water quality detector may detect the water quality of the water body by using an electrode method, a UV optical method, an optical scattering method, or the like.

In a preferred embodiment of the present invention, the environmental capacity of the natural water body discharged by the diversion well may be a natural water body such as a river, a lake or a sea; when the environment capacity of the natural water body is large (such as ocean), the pollutant concentration standard value C1 can be properly improved; when the environment capacity of the natural water body is smaller (such as a lake), the pollutant concentration standard value C1 can be properly reduced. When the water quality of the water body entering the diversion well is good, if the water body is middle-late-stage rainwater, the pollutant concentration standard value C1 can be properly reduced; when the water quality of the water body entering the diversion well is poor, such as domestic sewage and/or initial rainwater, the pollutant concentration standard value C1 can be properly improved. The purpose is to reduce pollution to natural water as little as possible.

In a preferred embodiment of the present invention, the above-mentioned setting principle is also applied to the pollutant concentration superscalar C2, and on the basis of this, the setting standard of the pollutant concentration superscalar C2 is also related to the upper concentration limit that can be processed by the on-line processing facility, and is generally not higher than the upper concentration limit that can be processed by the on-line processing facility.

In a preferred embodiment of the present invention, the total amount of initial rain Q3 is the total amount of initial rain Q3 to be processed by the diversion well calculated by multiplying the millimeter number of initial rain to be collected in the area corresponding to the water receiving area of the diversion well by the corresponding water receiving area.

In a preferred embodiment of the invention, the device for monitoring the total water body is selected from an electric hoist with a metering function.

In a preferred embodiment of the invention, a standard initial rain amount L1 of the diversion well to be intercepted is set in a control unit of the control system according to the millimeter number of the initial rain to be collected in the corresponding water receiving area of the diversion well.

In a preferred embodiment of the present invention, the device for monitoring rainfall is a rain gauge.

In a preferred embodiment of the present invention, the standard time T1 is set in the control unit of the control system according to the rainfall time of the initial rainwater and the time required for the entire initial rainwater to flow to the diversion well in the corresponding water receiving area of the diversion well.

In a preferred embodiment of the present invention, the means for monitoring the time is a timer.

In a preferred embodiment of the present invention, the first hydraulic switch, the second hydraulic switch, the third hydraulic switch and the eighth hydraulic switch may implement a maximum flow limiting function, and the on state means that the flow value of the hydraulic switch is smaller than or equal to a set maximum flow value, which may be implemented by adjusting the opening of the hydraulic switch by a control unit in a control system.

In a preferred embodiment of the present invention, the fourth hydraulic switch being in an on state means that the water body can flow to the natural water body through the hydraulic switch.

In a preferred embodiment of the present invention, the fourth hydraulic switch being in a shut-off state means that the opening degree of the fourth hydraulic switch is adjusted, so that the water body is ensured to be shut off at the upstream end of the hydraulic switch, and cannot flow to the natural water body through the hydraulic switch.

In a preferred embodiment of the present invention, the water conservancy switch being in an off state means that the flow value of the water body passing through the water conservancy switch is zero.

The invention will be further illustrated with reference to specific examples. It is to be understood that these examples are illustrative of the present invention and are not intended to limit the scope of the present invention. Further, it is understood that various changes and modifications of the invention will become apparent to those skilled in the art upon reading the description herein, and such equivalents are intended to fall within the scope of the invention as defined by the appended claims.

In the description of the present invention, it should be noted that the terms "first," "second," "third," "fourth," and "eighth" are used for descriptive purposes only and not for indicating or implying relative importance.

Example 1

As shown in fig. 1, the drainage system comprises a diversion well, wherein the diversion well comprises a diversion well body and five openings which are respectively a water inlet 1, a first water outlet 2, a second water outlet 3, a third water outlet 4 and a fourth water outlet 5, wherein the five openings are arranged in the diversion well body;

the drainage system further comprises a regulation facility 11, an online treatment facility 12 and an integrated treatment facility 13, wherein the integrated treatment facility 13 is connected with the first water outlet 2 through the regulation facility 11; the online treatment facility 12 is connected with the second water outlet 3;

the drainage system further comprises a first hydraulic switch 7, a second hydraulic switch 8, a third hydraulic switch 9, a fourth hydraulic switch 10 and an eighth hydraulic switch (not shown); wherein, a first water conservancy switch 7 is arranged near the first water outlet 2 and is used for controlling the water passing through the first water outlet 2; a second water conservancy switch 8 is arranged near the second water outlet 3 and is used for controlling the water passing amount passing through the second water outlet 3; a third water conservancy switch 9 is arranged near the third water outlet 4 and is used for controlling the water passing amount passing through the third water outlet 4; a fourth water conservancy switch 10 is arranged near the fourth water outlet 5 and is used for controlling the water passing amount passing through the fourth water outlet 5; an eighth water switch is provided near the outlet end of the regulation facility 11 or the inlet end of the integrated treatment facility 13 for controlling the amount of water passing through the outlet end of the regulation facility 11 or the inlet end of the integrated treatment facility 13.

In a preferred embodiment of the invention, the inlet end of the regulation facility is connected to the second water outlet via a pipe or gallery; the outlet end of the regulation facility is connected with the inlet end of the integrated treatment facility through a pipeline or a gallery; the outlet end of the integrated treatment facility is connected with a pipeline leading to the natural water body or directly connected with the natural water body.

In a preferred embodiment of the invention, the inlet end of the on-line treatment facility is connected to the third water outlet via a pipe or gallery; the outlet end of the on-line treatment facility is connected with a pipeline leading to the natural water body.

In a preferred embodiment of the inventionThe first monitoring device comprises a device for monitoring the water level (such as a liquid level sensor, a liquid level meter, a liquid level switch and the like), and a device for monitoring the water quality (such as a water quality detector, an online COD monitor, an online TSS monitor, an online BOD monitor, an online TN monitor, an online TP monitor and an online NH) _3- N monitor, online ammonia nitrogen monitor, electrode, conductivity meter, etc.), the device of monitoring total amount of water (for example can be the electric hoist etc. that have the measurement function), the device of monitoring rainfall (such as the rain gauge, etc.), the device of monitoring time (such as the time-recorder, etc.).

Example 2

The embodiment provides a drainage control method controlled by a water level method, the drainage control method is based on the drainage system of the embodiment 1, the drainage system comprises a control system, a first monitoring device in the control system comprises a device for monitoring the water body liquid level and is arranged in a well body of a diversion well, and a standard water level H1 of the diversion well is set in a control unit of the control system according to the height of an average topography point in a corresponding water receiving area of the diversion well when water accumulation risks occur; setting the warning water level H2 of the diversion well in a control unit of the control system according to the height of the lowest point of the topography in the area corresponding to the water receiving area of the diversion well when the water accumulation risk occurs; the second monitoring device in the control system comprises a device for monitoring the water body liquid level and is arranged in the regulation facility, and the highest water storage water level H3 of the regulation facility is set in the control unit of the control system according to the accommodation capacity of the regulation facility; the control unit is a PLC program, and the method comprises the following steps:

Starting a PLC program, and initializing running in a stroke sequence; inputting the set standard parameters into a PLC program, and monitoring the shunt well system in real time;

1a) When water enters the diversion well from the water inlet, the water level height in the well body of the diversion well and the water level height in the regulation facility are monitored in real time through a device for monitoring the water level, and the received signals are transmitted to a control unit, namely a PLC program, and the signals are converted into the water level height H in the well body of the diversion well and the water level height H4 in the regulation facility after being calculated by the analog quantity of the PLC program; at the moment, the PLC program can compare and judge according to the numerical value monitored in real time and the preset standard parameters, and issues a program command to each hydraulic switch controlled by the PLC program, the program command is transmitted to each hydraulic switch in a signal form, and reasonable water discharge can be realized by controlling the opening of each hydraulic switch; specifically:

2a) When the water level height H of the water body in the well body of the diversion well is smaller than the standard water level H1, the first water conservancy switch is in an on state, the second water conservancy switch and the third water conservancy switch are in an off state, the fourth water conservancy switch is in a cut-off state, and the eighth water conservancy switch is in an off state; the water body flows through the sewage interception pipe and is discharged to a sewage treatment plant;

3a) When the standard water level H1 is less than or equal to the water level height H in the well body of the diversion well and is less than the warning water level H2, if the water level height H4 in the regulation facility is less than the highest water storage water level H3 of the regulation facility, the first water conservancy switch and the second water conservancy switch are in an on state, the third water conservancy switch is in an off state, the fourth water conservancy switch is in a cut-off state, the eighth water conservancy switch is in an on state, and the water body is ensured to flow through the eighth water conservancy switch at a constant flow rate; part of water flows through the sewage interception pipe and is discharged to a sewage treatment plant, and part of water flows through the primary rain pipe and is discharged to a regulation facility for temporary storage; at this time, the water body temporarily stored in the regulation facility flows through the outlet end of the regulation facility at a constant flow rate into the integrated treatment facility; if the water level height H4 of the water body in the regulation facility is more than or equal to the highest water storage level H3 of the regulation facility, the first water conservancy switch and the third water conservancy switch are in an on state, the second water conservancy switch is in an off state, the fourth water conservancy switch is in a cut-off state, the eighth water conservancy switch is in an on state, and the water body is ensured to flow through the eighth water conservancy switch at a constant flow rate; part of water flows through the sewage interception pipe and is discharged to a sewage treatment plant, and part of water flows through the online treatment pipe and is discharged to an online treatment facility for treatment, so that the treated water can be directly discharged to natural water; at this time, the water body temporarily stored in the regulation facility flows through the outlet end of the regulation facility at a constant flow rate into the integrated treatment facility;

4a) When the water level H in the well body of the diversion well is more than or equal to the warning water level H2, the first water conservancy switch and the third water conservancy switch are in an on state, the second water conservancy switch is in an off state, the fourth water conservancy switch is in an on state, and the eighth water conservancy switch is in an off state; part of water flows through the sewage interception pipe and the on-line treatment pipe, and the flow passing through the sewage interception pipe and the on-line treatment pipe is ensured not to exceed a set flow value, and part of water flows through the water outlet pipe and is discharged to the natural water;

after each program command is finished, the PLC system reenters the initialization command and repeats the operation.

Example 3

A drainage control method controlled by a water quality method, the drainage control method is based on the drainage system of the embodiment 1, the drainage system comprises a control system, a first monitoring device in the control system comprises a device for monitoring the water quality of a water body and is arranged in a well body of a diversion well, and a pollutant concentration standard value C1 and a pollutant concentration superscale value C2 of the water body in the well of the diversion well are set according to the environmental capacity of the water body discharged to a natural water body by the diversion well and the water quality entering the well body of the diversion well; the second monitoring device of the drainage system comprises a device for monitoring the water body liquid level and is arranged in the regulation facility, and the highest water storage level H3 of the regulation facility is set according to the accommodation capacity of the regulation facility; the method comprises the following steps:

1b) The water enters the diversion well from the water inlet, and the water quality C in the diversion well is monitored in real time through a device for monitoring the water quality in the diversion well; monitoring the water level height H4 of the regulation facility in real time through a device for monitoring the water level;

2b) When the water quality C of the water body in the well is more than or equal to the pollutant concentration exceeding standard value C2, if the water level height H4 of the water body in the regulation facility is less than the highest water storage level H3 of the regulation facility, the first water conservancy switch and the second water conservancy switch are in an on state, the third water conservancy switch is in an off state, the fourth water conservancy switch is in a cut-off state, the eighth water conservancy switch is in an on state, and the water body is ensured to flow through the eighth water conservancy switch at a constant flow rate; part of water flows through the sewage interception pipe and is discharged to a sewage treatment plant, and part of water flows through the primary rain pipe and is discharged to a regulation facility for temporary storage; at this time, the water body temporarily stored in the regulation facility flows through the outlet end of the regulation facility at a constant flow rate into the integrated treatment facility; if the water level height H4 of the water body in the regulation facility is more than or equal to the highest water storage level H3 of the regulation facility, the first water conservancy switch is in an on state, the second water conservancy switch and the third water conservancy switch are in an off state, the fourth water conservancy switch is in a cut-off state, the eighth water conservancy switch is in an on state, and the water body is ensured to flow through the eighth water conservancy switch at a constant flow rate; the water body flows through the sewage interception pipe and is discharged to a sewage treatment plant; at this time, the water body temporarily stored in the regulation facility flows through the outlet end of the regulation facility at a constant flow rate into the integrated treatment facility;

3b) When the pollutant concentration exceeds the standard value C2 and the water quality C of the water body in the well is larger than the pollutant concentration standard value C1, the first water conservancy switch and the third water conservancy switch are in an on state, the second water conservancy switch is in an off state, the fourth water conservancy switch is in a cut-off state, and the eighth water conservancy switch is in an off state; part of water flows through the sewage interception pipe and is discharged to a sewage treatment plant, and part of water flows through the online treatment pipe and is discharged to an online treatment facility for treatment, so that the treated water can be directly discharged to natural water;

4b) When the pollutant concentration standard value C1 is more than or equal to the water quality C of the water body in the well, the first water conservancy switch and the second water conservancy switch are in a closed state, the third water conservancy switch is in an open state, the fourth water conservancy switch is in an open state, and the eighth water conservancy switch is in a closed state; part of water flows through the on-line treatment pipe, and the flow passing through the on-line treatment pipe is ensured not to exceed the set flow value, and part of water flows through the water outlet pipe and is discharged to the natural water.

Example 4

A drainage control method controlled by a water level-water quality method, the drainage control method is based on the drainage system of the embodiment 1, the drainage system comprises a control system, a first monitoring device in the control system comprises a device for monitoring the water level of a water body and is arranged in a well body of a diversion well, and a standard water level H1 of the diversion well is arranged according to the height of an average topography point in a corresponding water receiving area region of the diversion well when a ponding risk occurs; setting the warning water level H2 of the diversion well according to the height of the lowest point of the topography in the area corresponding to the water receiving area of the diversion well when the risk of water accumulation occurs; the first monitoring device in the control system further comprises a device for monitoring the water quality of the water body and is arranged in the well body of the diversion well, and the pollutant concentration standard value C1 of the water body in the well of the diversion well is set according to the environmental capacity of the diversion well discharged to the natural water body and the water quality entering the well body of the diversion well; the second monitoring device of the drainage system comprises a device for monitoring the water body liquid level and is arranged in the regulation facility, and the highest water storage level H3 of the regulation facility is set according to the accommodation capacity of the regulation facility; the method comprises the following steps:

1c) The water enters the diversion well from the water inlet, the water level height H in the well body of the diversion well is monitored in real time through a device for monitoring the water level, and the water quality C in the well body of the diversion well is monitored in real time through a device for monitoring the water quality of the water; monitoring the water level height H4 of the regulation facility in real time through a device for monitoring the water level;

2c) When the water level height H of the water body in the well body of the diversion well is smaller than the standard water level H1 and C is larger than C1, the first water conservancy switch is in an on state, the second water conservancy switch and the third water conservancy switch are in an off state, the fourth water conservancy switch is in a cut-off state, and the eighth water conservancy switch is in an off state; the water body flows through the sewage interception pipe and is discharged to a sewage treatment plant;

3c) When the water level height H of the water body in the well body of the diversion well is smaller than the standard water level H1 and C is smaller than or equal to C1, the first water conservancy switch and the second water conservancy switch are in a closed state, the third water conservancy switch is in an open state, the fourth water conservancy switch is in a shut-off state, and the eighth water conservancy switch is in a closed state; the water body flows through the online treatment pipe and enters the online treatment facility to enter the treatment and then is discharged into the natural water body;

4c) When the standard water level H1 is less than or equal to the water level height H < warning water level H2 and C > C1 in the well body of the diversion well, if the water level height H4 in the regulation facility is less than the highest water storage water level H3 of the regulation facility, the first water conservancy switch and the second water conservancy switch are in an on state, the third water conservancy switch is in an off state, the fourth water conservancy switch is in a cut-off state, the eighth water conservancy switch is in an on state, and the water body is ensured to flow through the eighth water conservancy switch at a constant flow rate; part of water flows through the sewage interception pipe and is discharged to a sewage treatment plant, and part of water flows through the primary rain pipe and is temporarily stored in a regulation facility; at this time, the water body temporarily stored in the regulation facility flows through the outlet end of the regulation facility at a constant flow rate into the integrated treatment facility; if the water level height H4 of the water body in the regulation facility is more than or equal to the highest water storage level H3 of the regulation facility, the first water conservancy switch is in an on state, the second water conservancy switch is in an off state, the third water conservancy switch is in an off state, the fourth water conservancy switch is in a cut-off state, the eighth water conservancy switch is in an on state, and the water body is ensured to flow through the eighth water conservancy switch at a constant flow rate; the water body only flows through the sewage interception pipe and is discharged to a sewage treatment plant; at this time, the water body temporarily stored in the regulation facility flows through the outlet end of the regulation facility at a constant flow rate into the integrated treatment facility;

5c) When the standard water level H1 is less than or equal to the water level height H of the water body in the diversion well body is less than the warning water level H2 and C is less than or equal to C1, if the water level height H4 in the regulation facility is less than the highest water storage water level H3 of the regulation facility, the first water conservancy switch is in an off state, the second water conservancy switch is in an on state, the third water conservancy switch is in an on state, the fourth water conservancy switch is in a cut-off state, the eighth water conservancy switch is in an on state, and the water body is ensured to flow through the eighth water conservancy switch at a constant flow rate; part of water flows through the primary rain pipe and flows to the regulation and storage facility for temporary storage; part of water flows through the online treatment pipe and enters the online treatment facility to enter the treatment, and then is discharged into the natural water; at this time, the water body temporarily stored in the regulation facility flows through the outlet end of the regulation facility at a constant flow rate into the integrated treatment facility; if the water level height H4 of the water body in the regulation facility is more than or equal to the highest water storage level H3 of the regulation facility, the first water conservancy switch is in a closed state, the second water conservancy switch is in a closed state, the third water conservancy switch is in an open state, the fourth water conservancy switch is in a shut-off state, the eighth water conservancy switch is in an open state, and the water body is ensured to flow through the eighth water conservancy switch at a constant flow rate; the water body only flows through the online treatment pipe to enter the online treatment facility for treatment and then is discharged into the natural water body; at this time, the water body temporarily stored in the regulation facility flows through the outlet end of the regulation facility at a constant flow rate into the integrated treatment facility;

6c) When the water level height H of the water body in the well body of the diversion well is more than or equal to the warning water level H2 and C is more than or equal to C1, if the water level height H4 of the water body in the regulation facility is more than or equal to the highest water storage water level H3 of the regulation facility, the first water conservancy switch is in an on state, the second water conservancy switch and the third water conservancy switch are in an off state, the eighth water conservancy switch is in an on state, and the water body is ensured to flow through the eighth water conservancy switch at a constant flow rate; the fourth water conservancy switch is in an on state; the water body flows through the water outlet pipe and is directly discharged into the natural water body; the water body also flows through the sewage interception pipe and is discharged to a sewage treatment plant; at this time, the water body temporarily stored in the regulation facility flows through the outlet end of the regulation facility at a constant flow rate into the integrated treatment facility; if the water level height H4 of the water body in the regulation facility is smaller than the highest water storage level H3 of the regulation facility, the first water conservancy switch and the second water conservancy switch are in an on state, the third water conservancy switch is in an off state, the eighth water conservancy switch is in an on state, and the water body is ensured to flow through the eighth water conservancy switch at a constant flow rate; the fourth water conservancy switch is in an on state; the water body flows through the water outlet pipe and is directly discharged into the natural water body; the water body also flows through the sewage interception pipe to be discharged to a sewage treatment plant, and can also flow through the primary rain pipe to be temporarily stored in a regulation facility; at this time, the water body temporarily stored in the regulation facility flows through the outlet end of the regulation facility at a constant flow rate into the integrated treatment facility;

7c) When the water level height H of the water body in the well body of the diversion well is more than or equal to the warning water level H2 and C is less than or equal to C1, if the water level height H4 of the water body in the regulation facility is more than or equal to the highest water storage water level H3 of the regulation facility, the first water conservancy switch and the second water conservancy switch are in a closed state, the third water conservancy switch is in an opened state, the eighth water conservancy switch is in an opened state, and the water body is ensured to flow through the eighth water conservancy switch at a constant flow rate; the fourth water conservancy switch is in an on state; the water body flows through the water outlet pipe and is directly discharged into the natural water body; the water body also flows through the online treatment pipe to enter the online treatment facility for treatment and then is discharged into the natural water body; at this time, the water body temporarily stored in the regulation facility flows through the outlet end of the regulation facility at a constant flow rate into the integrated treatment facility; if the water level height H4 of the water body in the regulation facility is smaller than the highest water storage level H3 of the regulation facility, the first water conservancy switch is in a closed state, the second water conservancy switch is in an open state, the third water conservancy switch is in an open state, the eighth water conservancy switch is in an open state, and the water body is ensured to flow through the eighth water conservancy switch at a constant flow rate; the fourth water conservancy switch is in an on state; the water body flows through the water outlet pipe and is directly discharged into the natural water body; the water body also flows through the online treatment pipe to enter the online treatment facility for treatment and then is discharged into the natural water body; at this time, the water body temporarily stored in the regulation facility flows through the outlet end of the regulation facility into the integrated treatment facility at a constant flow rate.

Example 5

The embodiment provides a drainage control method controlled by a total amount-water level method, the drainage control method is based on the drainage system of the embodiment 1, the drainage system comprises a control system, a first monitoring device in the control system comprises a device for monitoring the water body liquid level and is arranged on a first water conservancy switch and a second water conservancy switch in a well body of a diversion well, and a standard water level H1 of the diversion well is arranged according to the height of an average topography point in a corresponding water receiving area region of the diversion well when water accumulation risks occur; setting the warning water level H2 of the diversion well according to the height of the lowest point of the topography in the area corresponding to the water receiving area of the diversion well when the risk of water accumulation occurs; the first monitoring device in the control system comprises a device for monitoring the total water body and is arranged in the well body of the diversion well, and the total amount Q3 of the initial rain to be processed of the diversion well is set according to the millimeter number of the initial rain to be collected in the corresponding water receiving area of the diversion well; the second monitoring device comprises a device for monitoring the water body liquid level and is arranged in the regulation facility, and the highest water storage water level H3 of the regulation facility is set according to the accommodation capacity of the regulation facility; the control unit is a PLC program, and the method comprises the following steps:

when water enters the diversion well from the water inlet, the water level height in the well body of the diversion well and the water level height in the regulation facility are monitored in real time through a device for monitoring the water level, and the received signals are transmitted to a control unit, namely a PLC program, and the signals are converted into the water level height H in the well body of the diversion well and the water level height H4 in the regulation facility after being calculated by the analog quantity of the PLC program; the method comprises the steps of monitoring the total water quantity passing through a first water conservancy switch and the total water quantity passing through the first water conservancy switch in real time through a device for monitoring the total water quantity, transmitting received signals to a control unit, namely a PLC program, and converting the signals into the total water quantity Q1 passing through the first water conservancy switch and the total water quantity Q2 passing through the first water conservancy switch after analog quantity operation of the PLC program; at the moment, the PLC program can compare and judge according to the numerical value monitored in real time and the preset standard parameters, and issues a program command to each hydraulic switch controlled by the PLC program, the program command is transmitted to each hydraulic switch in a signal form, and reasonable water discharge can be realized by controlling the opening of each hydraulic switch; specifically:

1d) In rainy days, water enters the diversion well from the water inlet, the water level height H in the diversion well is monitored in real time through a device for monitoring the water level, and the total water quantity Q1 passing through the first water conservancy switch and the total water quantity Q2 passing through the first water conservancy switch are monitored in real time through a device for monitoring the total water quantity;

2d) When the water level height H in the well body of the diversion well is smaller than the standard water level H1 and (Q1 +Q 2) < Q3, the first water conservancy switch is in an on state, the second water conservancy switch and the third water conservancy switch are in an off state, the fourth water conservancy switch is in a cut-off state, and the eighth water conservancy switch is in an off state; the water body flows through the sewage interception pipe and is discharged to a sewage treatment plant;

3d) When the water level height H in the well body of the diversion well is smaller than the standard water level H1 and (Q1 +Q 2) is more than or equal to Q3, the first water conservancy switch and the second water conservancy switch are in a closed state, the third water conservancy switch is in an open state, the fourth water conservancy switch is in a shut-off state, and the eighth water conservancy switch is in a closed state; the water body flows through the online treatment pipe and enters the online treatment facility to enter the treatment and then is discharged into the natural water body;

4d) When the standard water level H1 is less than or equal to the water level height H of the water body in the well body of the diversion well and is less than the warning water level H2 and (Q1 +Q 2) < Q3, if the water level height H4 in the regulation facility is less than the highest water storage water level H3 of the regulation facility, the first water conservancy switch and the second water conservancy switch are in an on state, the third water conservancy switch is in an off state, the fourth water conservancy switch is in a cut-off state, the eighth water conservancy switch is in an on state, and the water body is ensured to flow through the eighth water conservancy switch at a constant flow rate; part of water flows through the sewage interception pipe and is discharged to a sewage treatment plant, and part of water flows through the primary rain pipe and is temporarily stored in a regulation facility; at this time, the water body temporarily stored in the regulation facility flows through the outlet end of the regulation facility at a constant flow rate into the integrated treatment facility; if the water level height H4 of the water body in the regulation facility is more than or equal to the highest water storage level H3 of the regulation facility, the first water conservancy switch is in an on state, the second water conservancy switch is in an off state, the third water conservancy switch is in an off state, the fourth water conservancy switch is in a cut-off state, the eighth water conservancy switch is in an on state, and the water body is ensured to flow through the eighth water conservancy switch at a constant flow rate; the water body only flows through the sewage interception pipe and is discharged to a sewage treatment plant; at this time, the water body temporarily stored in the regulation facility flows through the outlet end of the regulation facility at a constant flow rate into the integrated treatment facility;

5d) When the standard water level H1 is less than or equal to the water level height H of the water body in the well body of the diversion well and is less than the warning water level H2, and (Q1 +Q 2) is more than or equal to Q3, if the water level height H4 in the regulation facility is less than the highest water storage water level H3 of the regulation facility, the first water conservancy switch is in a closed state, the second water conservancy switch is in an open state, the third water conservancy switch is in an open state, the fourth water conservancy switch is in a shut-off state, the eighth water conservancy switch is in an open state, and the water body is ensured to flow through the eighth water conservancy switch at a constant flow rate; part of water flows through the primary rain pipe and flows to the regulation and storage facility for temporary storage; part of water flows through the online treatment pipe and enters the online treatment facility to enter the treatment, and then is discharged into the natural water; at this time, the water body temporarily stored in the regulation facility flows through the outlet end of the regulation facility at a constant flow rate into the integrated treatment facility; if the water level height H4 of the water body in the regulation facility is more than or equal to the highest water storage level H3 of the regulation facility, the first water conservancy switch is in a closed state, the second water conservancy switch is in a closed state, the third water conservancy switch is in an open state, the fourth water conservancy switch is in a shut-off state, the eighth water conservancy switch is in an open state, and the water body is ensured to flow through the eighth water conservancy switch at a constant flow rate; the water body only flows through the online treatment pipe to enter the online treatment facility for treatment and then is discharged into the natural water body; at this time, the water body temporarily stored in the regulation facility flows through the outlet end of the regulation facility at a constant flow rate into the integrated treatment facility;

6d) When the water level height H in the well body of the diversion well is more than or equal to the warning water level H2 and (Q1 +Q 2) is less than Q3, if the water level height H4 in the regulation facility is more than or equal to the highest water storage water level H3 of the regulation facility, the first water conservancy switch is in an on state, the second water conservancy switch and the third water conservancy switch are in an off state, the eighth water conservancy switch is in an on state, and the water body is ensured to flow through the eighth water conservancy switch at a constant flow rate; the fourth water conservancy switch is in an on state; the water body flows through the water outlet pipe and is directly discharged into the natural water body; the water body also flows through the sewage interception pipe and is discharged to a sewage treatment plant; at this time, the water body temporarily stored in the regulation facility flows through the outlet end of the regulation facility at a constant flow rate into the integrated treatment facility; if the water level height H4 of the water body in the regulation facility is smaller than the highest water storage level H3 of the regulation facility, the first water conservancy switch and the second water conservancy switch are in an on state, the third water conservancy switch is in an off state, the eighth water conservancy switch is in an on state, and the water body is ensured to flow through the eighth water conservancy switch at a constant flow rate; the fourth water conservancy switch is in an on state; the water body flows through the water outlet pipe and is directly discharged into the natural water body; the water body also flows through the sewage interception pipe to be discharged to a sewage treatment plant, and can also flow through the primary rain pipe to be temporarily stored in a regulation facility; at this time, the water body temporarily stored in the regulation facility flows through the outlet end of the regulation facility at a constant flow rate into the integrated treatment facility;

7d) When the water level height H in the well body of the diversion well is more than or equal to the warning water level H2 and (Q1 + Q2) is more than or equal to Q3, if the water level height H4 in the regulation facility is more than or equal to the highest water storage water level H3 of the regulation facility, the first water conservancy switch and the second water conservancy switch are in a closed state, the third water conservancy switch is in an open state, the eighth water conservancy switch is in an open state, and the water body is ensured to flow through the eighth water conservancy switch at a constant flow rate; the fourth water conservancy switch is in an on state; the water body flows through the water outlet pipe and is directly discharged into the natural water body; the water body also flows through the online treatment pipe to enter the online treatment facility for treatment and then is discharged into the natural water body; at this time, the water body temporarily stored in the regulation facility flows through the outlet end of the regulation facility at a constant flow rate into the integrated treatment facility; if the water level height H4 of the water body in the regulation facility is smaller than the highest water storage level H3 of the regulation facility, the first water conservancy switch is in a closed state, the second water conservancy switch is in an open state, the third water conservancy switch is in an open state, the eighth water conservancy switch is in an open state, and the water body is ensured to flow through the eighth water conservancy switch at a constant flow rate; the fourth water conservancy switch is in an on state; the water body flows through the water outlet pipe and is directly discharged into the natural water body; the water body also flows through the online treatment pipe to enter the online treatment facility for treatment and then is discharged into the natural water body; at this time, the water body temporarily stored in the regulation facility flows through the outlet end of the regulation facility into the integrated treatment facility at a constant flow rate.

8d) When the water enters the diversion well from the water inlet on sunny days, the first water conservancy switch is in an on state, the second water conservancy switch and the third water conservancy switch are in an off state, the fourth water conservancy switch is in a cut-off state, and the eighth water conservancy switch is in an off state; the water body flows through the sewage interception pipe and is discharged to a sewage treatment plant;

Example 6

A drainage control method based on the drainage system of embodiment 1, wherein the drainage system comprises a control system, a first monitoring device in the control system comprises a device for monitoring the water body liquid level and is arranged in a well body of a diversion well, and the standard water level H1 of the diversion well is set according to the height of an average topography point in a corresponding water receiving area region of the diversion well when the risk of water accumulation occurs; setting the warning water level H2 of the diversion well according to the height of the lowest point of the topography in the area corresponding to the water receiving area of the diversion well when the risk of water accumulation occurs; the first monitoring device in the control system comprises a device for monitoring rainfall and is arranged outside the well body of the diversion well, and the standard initial rainfall L1 which needs to be processed by the diversion well is set according to the initial rainfall millimeter number which needs to be collected in the corresponding water receiving area of the diversion well; the second monitoring device in the control system comprises a device for monitoring the water body liquid level and is arranged in the regulation facility, and the highest water storage water level H3 of the regulation facility is set according to the accommodation capacity of the regulation facility; the method comprises the following steps:

2e) When l=0, on a sunny day, the first water conservancy switch is in an on state, the second water conservancy switch and the third water conservancy switch are in an off state, the fourth water conservancy switch is in a cut-off state, and the eighth water conservancy switch is in an off state; the water body flows through the sewage interception pipe and is discharged to a sewage treatment plant;

4e) When the water level height H of the water body in the well body of the diversion well is smaller than the standard water level H1 and L1 is larger than L > 0, the first water conservancy switch is in an on state, the second water conservancy switch and the third water conservancy switch are in an off state, the fourth water conservancy switch is in a cut-off state, and the eighth water conservancy switch is in an off state; the water body flows through the sewage interception pipe and is discharged to a sewage treatment plant;

5e) When the water level height H of the water body in the well body of the diversion well is smaller than the standard water level H1 and L is larger than or equal to L1, the first water conservancy switch and the second water conservancy switch are in a closed state, the third water conservancy switch is in an open state, the fourth water conservancy switch is in a shut-off state, and the eighth water conservancy switch is in a closed state; the water body flows through the online treatment pipe and enters the online treatment facility to enter the treatment and then is discharged into the natural water body;

6e) When the standard water level H1 is less than or equal to the water level height H in the well body of the diversion well and is less than the warning water level H2, and 0 is less than L and is less than L1, if the water level height H4 in the regulation facility is less than the highest water storage water level H3 of the regulation facility, the first water conservancy switch and the second water conservancy switch are in an on state, the third water conservancy switch is in an off state, the fourth water conservancy switch is in a cut-off state, the eighth water conservancy switch is in an on state, and the water is ensured to flow through the eighth water conservancy switch at a constant flow rate; part of water flows through the sewage interception pipe and is discharged to a sewage treatment plant, and part of water flows through the primary rain pipe and is temporarily stored in a regulation facility; at this time, the water body temporarily stored in the regulation facility flows through the outlet end of the regulation facility at a constant flow rate into the integrated treatment facility; if the water level height H4 of the water body in the regulation facility is more than or equal to the highest water storage level H3 of the regulation facility, the first water conservancy switch is in an on state, the second water conservancy switch is in an off state, the third water conservancy switch is in an off state, the fourth water conservancy switch is in a cut-off state, the eighth water conservancy switch is in an on state, and the water body is ensured to flow through the eighth water conservancy switch at a constant flow rate; the water body only flows through the sewage interception pipe and is discharged to a sewage treatment plant; at this time, the water body temporarily stored in the regulation facility flows through the outlet end of the regulation facility at a constant flow rate into the integrated treatment facility;

7e) When the standard water level H1 is less than or equal to the water level height H of the water body in the well body of the diversion well and is less than the warning water level H2, and L is more than or equal to L1, if the water level height H4 in the regulation facility is less than the highest water storage water level H3 of the regulation facility, the first water conservancy switch is in an off state, the second water conservancy switch is in an on state, the third water conservancy switch is in an on state, the fourth water conservancy switch is in a cut-off state, the eighth water conservancy switch is in an on state, and the water body is ensured to flow through the eighth water conservancy switch at a constant flow rate; part of water flows through the primary rain pipe and flows to the regulation and storage facility for temporary storage; part of water flows through the online treatment pipe and enters the online treatment facility to enter the treatment, and then is discharged into the natural water; at this time, the water body temporarily stored in the regulation facility flows through the outlet end of the regulation facility at a constant flow rate into the integrated treatment facility; if the water level height H4 of the water body in the regulation facility is more than or equal to the highest water storage level H3 of the regulation facility, the first water conservancy switch is in a closed state, the second water conservancy switch is in a closed state, the third water conservancy switch is in an open state, the fourth water conservancy switch is in a shut-off state, the eighth water conservancy switch is in an open state, and the water body is ensured to flow through the eighth water conservancy switch at a constant flow rate; the water body only flows through the online treatment pipe to enter the online treatment facility for treatment and then is discharged into the natural water body; at this time, the water body temporarily stored in the regulation facility flows through the outlet end of the regulation facility at a constant flow rate into the integrated treatment facility;

8e) When the water level height H in the well body of the diversion well is more than or equal to the warning water level H2 and is more than 0 and less than L1, if the water level height H4 in the regulation facility is more than or equal to the highest water storage water level H3 of the regulation facility, the first water conservancy switch is in an on state, the second water conservancy switch and the third water conservancy switch are in an off state, the eighth water conservancy switch is in an on state, the water body is ensured to flow through the eighth water conservancy switch at a constant flow rate, and the fourth water conservancy switch is in an on state; the water body flows through the water outlet pipe and is directly discharged into the natural water body; the water body also flows through the sewage interception pipe and is discharged to a sewage treatment plant; at this time, the water body temporarily stored in the regulation facility flows through the outlet end of the regulation facility at a constant flow rate into the integrated treatment facility; if the water level height H4 of the water body in the regulation facility is smaller than the highest water storage level H3 of the regulation facility, the first water conservancy switch and the second water conservancy switch are in an on state, the third water conservancy switch is in an off state, the eighth water conservancy switch is in an on state, the water body is ensured to flow through the eighth water conservancy switch at a constant flow rate, and the fourth water conservancy switch is in an on state; the water body flows through the water outlet pipe and is directly discharged into the natural water body; the water body also flows through the sewage interception pipe to be discharged to a sewage treatment plant, and can also flow through the primary rain pipe to be temporarily stored in a regulation facility; at this time, the water body temporarily stored in the regulation facility flows through the outlet end of the regulation facility at a constant flow rate into the integrated treatment facility;

9e) When the water level height H of the water body in the well body of the diversion well is more than or equal to the warning water level H2 and L is more than or equal to L1, if the water level height H4 of the water body in the regulation facility is less than the highest water storage water level H3 of the regulation facility, the first water conservancy switch is in a closed state, the second water conservancy switch is in an open state, the third water conservancy switch is in an open state, the eighth water conservancy switch is in an open state, and the water body is ensured to flow through the eighth water conservancy switch at a constant flow rate, and the fourth water conservancy switch is in an open state; the water body flows through the water outlet pipe and is directly discharged into the natural water body; the water body also flows through the online treatment pipe to enter the online treatment facility for treatment and then is discharged into the natural water body; at this time, the water body temporarily stored in the regulation facility flows through the outlet end of the regulation facility at a constant flow rate into the integrated treatment facility; if the water level height H4 of the water body in the regulation facility is more than or equal to the highest water storage level H3 of the regulation facility, the first water conservancy switch and the second water conservancy switch are in a closed state, the third water conservancy switch is in an open state, the eighth water conservancy switch is in an open state, the water body is ensured to flow through the eighth water conservancy switch at a constant flow rate, and the fourth water conservancy switch is in an open state; the water body flows through the water outlet pipe and is directly discharged into the natural water body; the water body also flows through the online treatment pipe to enter the online treatment facility for treatment and then is discharged into the natural water body; at this time, the water body temporarily stored in the regulation facility flows through the outlet end of the regulation facility into the integrated treatment facility at a constant flow rate.

Example 7

A drainage control method controlled by a time-water level method, the drainage control method is based on the drainage system of the embodiment 1, the drainage system comprises a control system, a first monitoring device in the control system comprises a device for monitoring the water body liquid level and is arranged in a well body of a diversion well, and a standard water level H1 of the diversion well is arranged according to the height of an average topography point in a corresponding water receiving area of the diversion well when water accumulation risk occurs; setting the warning water level H2 of the diversion well according to the height of the lowest point of the topography in the area corresponding to the water receiving area of the diversion well when the risk of water accumulation occurs; the first monitoring device in the control system comprises a device for monitoring time and is arranged in or out of the diversion well body, and the standard time T1 required for the whole initial rainwater in the corresponding water receiving area of the diversion well to flow to the diversion well is calculated according to the rainfall time of the initial rainwater; the second monitoring device in the control system comprises a device for monitoring the water body liquid level and is arranged in the regulation facility, and the highest water storage water level H3 of the regulation facility is set according to the accommodation capacity of the regulation facility; the method comprises the following steps:

1f) When the water enters the diversion well from the water inlet on sunny days, the first water conservancy switch is in an on state, the second water conservancy switch and the third water conservancy switch are in an off state, the fourth water conservancy switch is in a cut-off state, and the eighth water conservancy switch is in an off state; the water body flows through the sewage interception pipe and is discharged to a sewage treatment plant;

2f) In rainy days, water enters the diversion well from the water inlet, the water level height H in the diversion well is monitored in real time through a device for monitoring the water level, and the rainfall time T is monitored in real time through a device for monitoring the time; monitoring the water level height H4 of the regulation facility in real time through a device for monitoring the water level;

3f) When the water level height H of the water body in the well body of the diversion well is smaller than the standard water level H1 and T is smaller than T1, the first water conservancy switch is in an on state, the second water conservancy switch and the third water conservancy switch are in an off state, the fourth water conservancy switch is in a cut-off state, and the eighth water conservancy switch is in an off state; the water body flows through the sewage interception pipe and is discharged to a sewage treatment plant;

4f) When the water level height H of the water body in the well body of the diversion well is smaller than the standard water level H1 and T is larger than or equal to T1, the first water conservancy switch and the second water conservancy switch are in a closed state, the third water conservancy switch is in an open state, the fourth water conservancy switch is in a shut-off state, and the eighth water conservancy switch is in a closed state; the water body flows through the online treatment pipe and enters the online treatment facility to enter the treatment and then is discharged into the natural water body;

5f) When the standard water level H1 is less than or equal to the water level height H of the water body in the well body of the diversion well and is less than the warning water level H2, and T is less than T1, if the water level height H4 in the regulation facility is less than the highest water storage water level H3 of the regulation facility, the first water conservancy switch and the second water conservancy switch are in an on state, the third water conservancy switch is in an off state, the fourth water conservancy switch is in a cut-off state, the eighth water conservancy switch is in an on state, and the water body is ensured to flow through the eighth water conservancy switch at a constant flow rate; part of water flows through the sewage interception pipe and is discharged to a sewage treatment plant, and part of water flows through the primary rain pipe and is temporarily stored in a regulation facility; at this time, the water body temporarily stored in the regulation facility flows through the outlet end of the regulation facility at a constant flow rate into the integrated treatment facility; if the water level height H4 of the water body in the regulation facility is more than or equal to the highest water storage level H3 of the regulation facility, the first water conservancy switch is in an on state, the second water conservancy switch is in an off state, the third water conservancy switch is in an off state, the fourth water conservancy switch is in a cut-off state, the eighth water conservancy switch is in an on state, and the water body is ensured to flow through the eighth water conservancy switch at a constant flow rate; the water body only flows through the sewage interception pipe and is discharged to a sewage treatment plant; at this time, the water body temporarily stored in the regulation facility flows through the outlet end of the regulation facility at a constant flow rate into the integrated treatment facility;

6f) When the standard water level H1 is less than or equal to the water level height H of the water body in the well body of the diversion well and is less than the warning water level H2, and L is more than or equal to L1, if the water level height H4 in the regulation facility is less than the highest water storage water level H3 of the regulation facility, the first water conservancy switch is in an off state, the second water conservancy switch is in an on state, the third water conservancy switch is in an on state, the fourth water conservancy switch is in a cut-off state, the eighth water conservancy switch is in an on state, and the water body is ensured to flow through the eighth water conservancy switch at a constant flow rate; part of water flows through the primary rain pipe and flows to the regulation and storage facility for temporary storage; part of water flows through the online treatment pipe and enters the online treatment facility to enter the treatment, and then is discharged into the natural water; at this time, the water body temporarily stored in the regulation facility flows through the outlet end of the regulation facility at a constant flow rate into the integrated treatment facility; if the water level height H4 of the water body in the regulation facility is more than or equal to the highest water storage level H3 of the regulation facility, the first water conservancy switch is in a closed state, the second water conservancy switch is in a closed state, the third water conservancy switch is in an open state, the fourth water conservancy switch is in a shut-off state, the eighth water conservancy switch is in an open state, and the water body is ensured to flow through the eighth water conservancy switch at a constant flow rate; the water body only flows through the online treatment pipe to enter the online treatment facility for treatment and then is discharged into the natural water body; at this time, the water body temporarily stored in the regulation facility flows through the outlet end of the regulation facility at a constant flow rate into the integrated treatment facility;

7f) When the water level height H of the water body in the well body of the diversion well is more than or equal to the warning water level H2 and T is less than T1, if the water level height H4 of the water body in the regulation facility is more than or equal to the highest water storage water level H3 of the regulation facility, the first water conservancy switch is in an on state, the second water conservancy switch and the third water conservancy switch are in an off state, the eighth water conservancy switch is in an on state, the water body is ensured to flow through the eighth water conservancy switch at a constant flow rate, and the fourth water conservancy switch is in an on state; the water body flows through the water outlet pipe and is directly discharged to the natural water body, and the water body also flows through the sewage interception pipe and is discharged to the sewage treatment plant; at this time, the water body temporarily stored in the regulation facility flows through the outlet end of the regulation facility at a constant flow rate into the integrated treatment facility; if the water level height H4 of the water body in the regulation facility is smaller than the highest water storage level H3 of the regulation facility, the first water conservancy switch and the second water conservancy switch are in an on state, the third water conservancy switch is in an off state, the eighth water conservancy switch is in an on state, the water body is ensured to flow through the eighth water conservancy switch at a constant flow rate, and the fourth water conservancy switch is in an on state; the water body flows through the water outlet pipe to be directly discharged into the natural water body, flows through the sewage interception pipe to be discharged into a sewage treatment plant, and can also flow through the primary rain pipe to be temporarily stored in a regulation facility; at this time, the water body temporarily stored in the regulation facility flows through the outlet end of the regulation facility at a constant flow rate into the integrated treatment facility;

8f) When the water level height H of the water body in the well body of the diversion well is more than or equal to the warning water level H2 and T is more than or equal to T1, if the water level height H4 of the water body in the regulation facility is more than or equal to the highest water storage water level H3 of the regulation facility, the first water conservancy switch and the second water conservancy switch are in a closed state, the third water conservancy switch is in an opened state, the eighth water conservancy switch is in an opened state, the water body is ensured to flow through the eighth water conservancy switch at a constant flow rate, and the fourth water conservancy switch is in an opened state; the water body flows through the water outlet pipe and is directly discharged into the natural water body, and the water body also flows through the online treatment pipe and enters the online treatment facility to enter the treatment and is discharged into the natural water body after being treated; at this time, the water body temporarily stored in the regulation facility flows through the outlet end of the regulation facility at a constant flow rate into the integrated treatment facility; if the water level height H4 of the water body in the regulation facility is smaller than the highest water storage level H3 of the regulation facility, the first water conservancy switch is in an off state, the second water conservancy switch is in an on state, the third water conservancy switch is in an on state, the eighth water conservancy switch is in an on state, the water body is ensured to flow through the eighth water conservancy switch at a constant flow rate, and the fourth water conservancy switch is in an on state; the water body flows through the water outlet pipe and is directly discharged into the natural water body, and the water body also flows through the online treatment pipe and enters the online treatment facility to enter the treatment and is discharged into the natural water body after being treated; at this time, the water body temporarily stored in the regulation facility flows through the outlet end of the regulation facility into the integrated treatment facility at a constant flow rate.

In the above embodiments 2 to 7, the device for monitoring the water level is a level sensor, a level gauge, a level switch, etc.

In the above embodiments 2-7, the device for monitoring water quality is a water quality detector, an online COD monitor, an online ammonia nitrogen monitor, an online TSS monitor, an online BOD monitor, or an online NH _3- N monitor, online TP monitor, online TN monitor, electrode, conductivity meter, etc., which monitor the concentration of pollutants in water in the well body of the shunt well, wherein the pollutants comprise TSS, COD, BOD, NH _3- N, TN or TP.

In the above embodiments 2 to 7, the water quality detector may be an electrode method, a UV optical method, an optical scattering method, or the like to detect the water quality of the water body.

In the above embodiments 2 to 7, the environmental capacity of the natural water body discharged from the diversion well may be a natural water body such as a river, a lake or a sea; when the environment capacity of the natural water body is large (such as ocean), the pollutant concentration standard value C1 can be properly improved; when the environment capacity of the natural water body is smaller (such as a lake), the pollutant concentration standard value C1 can be properly reduced. When the water quality of the water body entering the diversion well is good, if the water body is middle-late-stage rainwater, the pollutant concentration standard value C1 can be properly reduced; when the water quality of the water body entering the diversion well is poor, such as domestic sewage and/or initial rainwater, the pollutant concentration standard value C1 can be properly improved. The purpose is to reduce pollution to natural water as little as possible.

In the above embodiments 2-7, the above setting principle is also applied to the pollutant concentration superscalar value C2, and on the basis of this, the setting standard of the pollutant concentration superscalar value C2 is related to the upper concentration limit that can be processed by the on-line processing facility, and is generally not higher than the upper concentration limit that can be processed by the on-line processing facility.

In the above embodiments 2 to 7, the device for monitoring the total amount of the water body is selected from an electric hoist with a metering function.

In the above embodiments 2 to 7, the device for monitoring rainfall is a rain gauge.

In the above embodiments 2 to 7, the device for monitoring time is a timer.

In the above embodiments 2 to 7, the first hydraulic switch, the second hydraulic switch, the third hydraulic switch and the eighth hydraulic switch may implement a maximum flow restriction function, and the on state of the first hydraulic switch, the second hydraulic switch, the third hydraulic switch and the eighth hydraulic switch means that the flow value of the hydraulic switch is smaller than or equal to the set maximum flow value, which may be implemented by adjusting the opening of the hydraulic switch by a control unit in the control system.

In embodiments 2 to 7, the fourth hydraulic switch being in the on state means that the water body can flow to the natural water body through the hydraulic switch.

In the foregoing embodiments 2 to 7, the fourth hydraulic switch being in the shut-off state means that the opening of the fourth hydraulic switch is adjusted, so that the water body is guaranteed to be shut-off at the upstream end of the hydraulic switch, and cannot flow to the natural water body through the hydraulic switch.

In embodiments 2-7 above, the water conservancy switch being in the off state means that the flow value of the water body passing through the water conservancy switch is zero.

The embodiments of the present invention have been described above. However, the present invention is not limited to the above embodiment. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A drainage system comprises a diversion well, wherein the diversion well comprises a diversion well body and five openings which are respectively a water inlet, a first water outlet, a second water outlet, a third water outlet and a fourth water outlet, wherein the five openings are arranged in the diversion well body;

the drainage system further comprises a first water conservancy switch, a second water conservancy switch, a third water conservancy switch, a fourth water conservancy switch and an eighth water conservancy switch; the first water conservancy switch is arranged near the first water outlet and used for controlling the water passing quantity passing through the first water outlet; a second water conservancy switch is arranged near the second water outlet and is used for controlling the water passing quantity passing through the second water outlet; a third water conservancy switch is arranged near the third water outlet and is used for controlling the water passing quantity passing through the third water outlet; a fourth water conservancy switch is arranged near the fourth water outlet and is used for controlling the water passing quantity passing through the fourth water outlet; an eighth water conservancy switch is arranged near the outlet end of the regulation facility or the inlet end of the integrated treatment facility and is used for controlling the water passing through the outlet end of the regulation facility or the inlet end of the integrated treatment facility;

The drainage system further comprises a sewage interception pipe, and the first water outlet is connected with a pipeline leading to a sewage treatment plant through the sewage interception pipe; the inlet end of the regulation facility is connected with the second water outlet through a pipeline or a gallery; the outlet end of the regulation facility is connected with the inlet end of the integrated treatment facility through a pipeline or a gallery; the outlet end of the integrated treatment facility is connected with a pipeline leading to the natural water body or directly connected with the natural water body; the inlet end of the online treatment facility is connected with the third water outlet through a pipeline or a gallery; the outlet end of the on-line treatment facility is connected with a pipeline leading to a natural water body; the drainage system further comprises a water outlet pipe; the fourth water outlet is connected with a pipeline leading to the natural water body through a water outlet pipe;

the drainage system further comprises a control system, wherein the control system comprises a first monitoring device, a second monitoring device and a control unit in signal connection with the first monitoring device and the second monitoring device; the control unit is in signal connection with the first water conservancy switch, the second water conservancy switch, the third water conservancy switch, the fourth water conservancy switch and the eighth water conservancy switch; the first monitoring device and the second monitoring device are used for monitoring signals and transmitting the monitored signals to the control unit, and the control unit controls the opening degrees of the first hydraulic switch, the second hydraulic switch, the third hydraulic switch, the fourth hydraulic switch and the eighth hydraulic switch according to the received signals.

2. The drainage system of claim 1 wherein the first monitoring means comprises at least one of means for monitoring the level of the body of water, means for monitoring the quality of the body of water, means for monitoring the total amount of water, means for monitoring the amount of rain, and means for monitoring the time.

3. The drainage system of claim 2, wherein the first monitoring device is disposable in or out of the diverter well body according to type requirements, wherein the means for monitoring water body level and the means for monitoring water body quality are disposed in or out of the diverter well body, the means for monitoring rainfall is disposed out of the diverter well body, the means for monitoring total water body is disposed on a water switch in the diverter well body, and the means for monitoring time is disposed in or out of the diverter well body.

4. The drainage system of claim 1 wherein said second monitoring means comprises means for monitoring the level of a body of water;

and/or the second monitoring device is arranged in the regulation facility.

5. The drainage system of claim 1, wherein the regulation facility is a plurality of regulation facilities connected in series or in parallel in the drainage system; the regulation facility comprises a regulation pool, a regulation box culvert and a deep tunnel or shallow tunnel;

And/or the integrated treatment facility is a plurality of integrated treatment facilities connected in series or in parallel; the integrated treatment facility comprises an integrated sewage treatment station;

and/or the online processing facility is a plurality of online processing facilities connected in series or in parallel; the online treatment facility comprises a biological filter, an online treatment tank, a flocculation tank, an inclined plate sedimentation tank, a sand setting tank or an artificial wetland.

6. The drainage system of claim 1, wherein the first, second, third, fourth, and eighth hydraulic switches are each independently selected from one of a valve, gate, slice gate, flap gate.

7. The drainage system of claim 6, wherein the valve is selected from one of a ball valve, a gate valve, a knife gate valve, a butterfly valve, a lift rubber plate shut-off check valve; the gate is selected from one of an upper open gate and a lower open gate; the weir gate is selected from one of an upper open type weir gate, a lower open type weir gate and a rotary type weir gate; the flap valve is selected from a closure flap valve.

8. The drainage system of claim 1, 6 or 7, wherein the first water switch is capable of achieving a maximum flow restriction function, i.e. ensuring that the flow through the first water switch does not exceed a set flow value;

And/or the second water conservancy switch can realize the maximum current limiting function, namely, the flow passing through the second water conservancy switch is ensured not to exceed the set flow value;

and/or the third water conservancy switch can realize the maximum current limiting function, namely, the flow passing through the third water conservancy switch is ensured not to exceed the set flow value;

and/or the eighth water conservancy switch can realize the maximum current limiting function, namely the flow passing through the eighth water conservancy switch is ensured not to exceed the set flow value.

9. A water level controlled drainage control method, the drainage control method is based on the drainage system of any one of claims 1-8, the drainage system comprises a control system, a first monitoring device in the control system comprises a device for monitoring the water body liquid level and is arranged in a well body of a diversion well, a second monitoring device in the control system comprises a device for monitoring the water body liquid level and is arranged in a regulation facility, and a standard water level H1 of the diversion well, a warning water level H2 of the diversion well and a highest water storage water level H3 of the regulation facility are set in a control unit of the control system; the method comprises the following steps:

3a) When H1 is less than or equal to H2, if H4 is less than or equal to H3, the first water conservancy switch and the second water conservancy switch are in an on state, the third water conservancy switch is in an off state, the fourth water conservancy switch is in a cut-off state, the eighth water conservancy switch is in an on state, and the water body is ensured to flow through the eighth water conservancy switch at a constant flow rate; if H4 is more than or equal to H3, the first water conservancy switch is in an on state, the second water conservancy switch is in an off state, the third water conservancy switch is in an on state, the fourth water conservancy switch is in an off state, the eighth water conservancy switch is in an on state, and the water body is ensured to flow through the eighth water conservancy switch at a constant flow rate;

10. The drainage control method according to claim 9, wherein the standard water level H1 of the diversion well is set according to the height of the average topography point in the area corresponding to the water receiving area of the diversion well when the risk of water accumulation occurs;

And/or setting the warning water level H2 of the diversion well in a control unit of the control system according to the height of the lowest point of the topography in the corresponding water receiving area of the diversion well when the water accumulation risk occurs;

and/or setting a highest water storage level H3 of the regulation facility in a control unit of the control system according to the accommodation capacity of the regulation facility;

and/or the device for monitoring the water body liquid level is a liquid level sensor, a liquid level meter or a liquid level switch.

11. A drainage control method controlled by a water quality method, the drainage control method is based on the drainage system of any one of claims 1-8, the drainage system comprises a control system, a first monitoring device in the control system comprises a device for monitoring the water quality of a water body and is arranged in a well body of a diversion well, a second monitoring device in the control system comprises a device for monitoring the water body liquid level and is arranged in a regulation facility, and a standard value C1 of pollutant concentration, an overscale value C2 of pollutant concentration and a highest water storage level H3 of the regulation facility are set in a control unit of the control system; the method comprises the following steps:

3b) When C2> C > C1, the first water conservancy switch and the third water conservancy switch are in an on state, the second water conservancy switch is in an off state, the fourth water conservancy switch is in a cut-off state, and the eighth water conservancy switch is in an off state;

12. The water discharge control method according to claim 11, wherein a highest water storage level H3 of the regulation facility is set in a control unit of the control system according to the accommodation capacity of the regulation facility;

And/or the device for monitoring the water body liquid level is a liquid level sensor, a liquid level meter or a liquid level switch;

and/or setting a pollutant concentration standard value C1 in a control unit of the control system according to the environmental capacity of the discharged natural water body and the water quality of the water body entering the diversion well;

and/or setting a pollutant concentration superscript C2 in the control unit according to the environmental capacity of the discharged natural water body, the water quality of the water body entering the diversion well and the highest pollutant concentration which can be treated by the on-line treatment facility;

and/or the device for monitoring the water quality of the water body is a water quality detector, an online COD (chemical oxygen demand) monitor, an online ammonia nitrogen monitor, an online TSS (TSS) monitor, an online BOD (biochemical oxygen demand) monitor and an online NH (NH) monitor ₃ -N monitor, on-line TP monitor, on-line TN monitor, electrode or conductivity meter, which monitors the concentration of contaminants in the water in the well body of the shunt well, said contaminants comprising TSS, COD, BOD, NH ₃ -one or more of N, TN or TP;

and/or the water quality detector adopts at least one of an electrode method, a UV optical method and an optical scattering method to detect the water quality of the water body.

13. A drainage control method controlled by a water level-water quality method, the drainage control method is based on the drainage system of any one of claims 1-8, the drainage system comprises a control system, a first monitoring device in the control system comprises a device for monitoring the water level of a water body and a device for monitoring the water quality of the water body and is arranged in a well body of a diversion well, a second monitoring device in the control system comprises a device for monitoring the water level of the water body and is arranged in a regulation facility, and a standard water level H1 of the diversion well, a warning water level H2 of the diversion well, a pollutant concentration standard value C1 and a highest water storage water level H3 of the regulation facility are set in a control unit of the control system; the method comprises the following steps:

2c) When H < H1 and C > C1, the first water conservancy switch is in an on state, the second water conservancy switch and the third water conservancy switch are in an off state, the fourth water conservancy switch is in a cut-off state, and the eighth water conservancy switch is in an off state;

4c) When H1 is less than or equal to H < H2 and C > C1, if H4 is less than H3, the first water conservancy switch and the second water conservancy switch are in an on state, the third water conservancy switch is in an off state, the fourth water conservancy switch is in a cut-off state, the eighth water conservancy switch is in an on state, and the water body is ensured to flow through the eighth water conservancy switch at a constant flow rate; if H4 is more than or equal to H3, the first water conservancy switch is in an on state, the second water conservancy switch is in an off state, the third water conservancy switch is in an off state, the fourth water conservancy switch is in a cut-off state, the eighth water conservancy switch is in an on state, and the water body is ensured to flow through the eighth water conservancy switch at a constant flow rate;

14. The drainage control method according to claim 13, wherein the standard water level H1 of the diversion well is set according to the height of the average topography point in the area corresponding to the water receiving area of the diversion well when the risk of water accumulation occurs;

15. A drainage control method controlled by a water level-total method, the drainage control method is based on the drainage system of any one of claims 1-8, the drainage system comprises a control system, a first monitoring device in the control system comprises a device for monitoring the total water amount and is arranged on a first water conservancy switch and a second water conservancy switch in a well body of a diversion well, the first monitoring device in the control system also comprises a device for monitoring the water level and is arranged in the well body of the diversion well, a second monitoring device in the control system comprises a device for monitoring the water level and is arranged in a regulation facility, and a standard total amount of initial rain Q3 required to be intercepted by the diversion well, a standard water level H1 of the diversion well, a warning water level H2 of the diversion well and a highest water storage level H3 of the regulation facility are set in a control unit of the control system; the method comprises the following steps:

2d) When H is smaller than H1 and (Q1 +Q 2) < Q3, the first water conservancy switch is in an on state, the second water conservancy switch and the third water conservancy switch are in an off state, the fourth water conservancy switch is in a cut-off state, and the eighth water conservancy switch is in an off state;

4d) When H1 is less than or equal to H2 and (Q1 +Q 2) < Q3, if H4 is less than H3, the first water conservancy switch and the second water conservancy switch are in an on state, the third water conservancy switch is in an off state, the fourth water conservancy switch is in a cut-off state, the eighth water conservancy switch is in an on state, and the water body is ensured to flow through the eighth water conservancy switch at a constant flow rate; if H4 is more than or equal to H3, the first water conservancy switch is in an on state, the second water conservancy switch is in an off state, the third water conservancy switch is in an off state, the fourth water conservancy switch is in a cut-off state, the eighth water conservancy switch is in an on state, and the water body is ensured to flow through the eighth water conservancy switch at a constant flow rate;

5d) When H1 is less than or equal to H2 and (Q1 +Q 2) is more than or equal to Q3, if H4 is less than H3, the first water conservancy switch is in an off state, the second water conservancy switch and the third water conservancy switch are in an on state, the fourth water conservancy switch is in a cut-off state, the eighth water conservancy switch is in an on state, and the water body is ensured to flow through the eighth water conservancy switch at a constant flow rate; if H4 is more than or equal to H3, the first water conservancy switch and the second water conservancy switch are in the closed state, the third water conservancy switch is in the open state, the fourth water conservancy switch is in the cut-off state, the eighth water conservancy switch is in the open state, and the water body is ensured to flow through the eighth water conservancy switch at a constant flow rate;

6d) When H is more than or equal to H2 and (Q1 +Q 2) < Q3, if H4 is less than H3, the first hydraulic switch, the second hydraulic switch and the fourth hydraulic switch are in an on state, the third hydraulic switch is in an off state, the eighth hydraulic switch is in an on state, and the water body is ensured to flow through the eighth hydraulic switch at a constant flow rate; if H4 is more than or equal to H3, the first water conservancy switch and the fourth water conservancy switch are in an on state, the second water conservancy switch and the third water conservancy switch are in an off state, and the eighth water conservancy switch is in an on state, so that water body can flow through the eighth water conservancy switch at a constant flow rate;

16. The drainage control method according to claim 15, characterized in that the method further comprises the step of:

17. The drainage control method according to claim 15 or 16, wherein the standard water level H1 of the diversion well is set according to the height of the average topography point in the area corresponding to the water receiving area of the diversion well when the risk of water accumulation occurs;

and/or, the total amount of the initial rain Q3 is calculated by multiplying the millimeter number of the initial rain needed to be collected in the area corresponding to the water receiving area of the diversion well by the corresponding water receiving area, and the total amount of the initial rain Q3 needed to be processed by the diversion well is calculated;

and/or the device for monitoring the total water body is selected from an electric hoist with a metering function.

18. A drainage control method based on the drainage system of any one of claims 1-8, wherein the drainage system comprises a control system, a first monitoring device in the control system comprises a device for monitoring the rainfall and is arranged outside a well body of a diversion well, a first monitoring device in the control system further comprises a device for monitoring the water body liquid level and is arranged in the well body of the diversion well, a second monitoring device in the control system comprises a device for monitoring the water body liquid level and is arranged in a regulation facility, and a standard initial rainfall L1 of the diversion well, a standard water level H1 of the diversion well, a warning water level H2 of the diversion well and a highest water storage water level H3 of the regulation facility are set in a control unit of the control system; the method comprises the following steps:

4e) When H < H1 and 0< L1, the first water conservancy switch is in an on state, the second water conservancy switch and the third water conservancy switch are in an off state, the fourth water conservancy switch is in a cut-off state, and the eighth water conservancy switch is in an off state;

6e) When H1 is less than or equal to H2 and 0< L1, if H4 is less than H3, the first water conservancy switch and the second water conservancy switch are in an on state, the third water conservancy switch is in an off state, the fourth water conservancy switch is in a cut-off state, the eighth water conservancy switch is in an on state, and the water body is ensured to flow through the eighth water conservancy switch at a constant flow rate; if H4 is more than or equal to H3, the first water conservancy switch is in an on state, the second water conservancy switch and the third water conservancy switch are in an off state, the fourth water conservancy switch is in a cut-off state, the eighth water conservancy switch is in an on state, and the water body is ensured to flow through the eighth water conservancy switch at a constant flow rate;

8e) When H is more than or equal to H2 and 0< L1, if H4 is less than H3, the first hydraulic switch, the second hydraulic switch and the fourth hydraulic switch are in an on state, the third hydraulic switch is in an off state, the eighth hydraulic switch is in an on state, and the water body is ensured to flow through the eighth hydraulic switch at a constant flow rate; if H4 is more than or equal to H3, the first water conservancy switch and the fourth water conservancy switch are in an on state, the second water conservancy switch and the third water conservancy switch are in an off state, and the eighth water conservancy switch is in an on state, so that water body can flow through the eighth water conservancy switch at a constant flow rate;

19. The drainage control method according to claim 18, wherein the standard water level H1 of the diversion well is set according to the height of the average topography point in the area corresponding to the water receiving area of the diversion well when the risk of water accumulation occurs;

and/or setting a standard initial rain amount L1 of the diversion well to be intercepted in a control unit of the control system according to the initial rain millimeter number required to be collected in the corresponding water receiving area of the diversion well;

and/or the device for monitoring the rainfall is a rain gauge.

20. A drainage control method controlled by a time-water level method, the drainage control method is based on the drainage system of any one of claims 1-8, the drainage system comprises a control system, a first monitoring device in the control system comprises a device for monitoring time and is arranged in or out of a diversion well body, a first monitoring device in the control system also comprises a device for monitoring water body liquid level and is arranged in the diversion well body, a second monitoring device in the control system comprises a device for monitoring water body liquid level and is arranged in a regulation facility, and a standard time T1, a standard water level H1 of the diversion well, a warning water level H2 of the diversion well and a highest water storage water level H3 of the regulation facility are set in a control unit of the control system; the method comprises the following steps:

3f) When H < H1 and T < T1, the first water conservancy switch is in an on state, the second water conservancy switch and the third water conservancy switch are in an off state, the fourth water conservancy switch is in a cut-off state, and the eighth water conservancy switch is in an off state;

6f) When H1 is less than or equal to H2 and T is more than or equal to T1, if H4 is less than or equal to H3, the first water conservancy switch is in an off state, the second water conservancy switch is in an on state, the third water conservancy switch is in an on state, the fourth water conservancy switch is in a cut-off state, the eighth water conservancy switch is in an on state, and the water body is ensured to flow through the eighth water conservancy switch at a constant flow rate; if H4 is more than or equal to H3, the first water conservancy switch and the second water conservancy switch are in the closed state, the third water conservancy switch is in the open state, the fourth water conservancy switch is in the cut-off state, the eighth water conservancy switch is in the open state, and the water body is ensured to flow through the eighth water conservancy switch at a constant flow rate;

21. The drainage control method according to claim 20, wherein the standard water level H1 of the diversion well is set according to the height of the average topography point in the area corresponding to the water receiving area of the diversion well when the risk of water accumulation occurs;

And/or setting standard time T1 in a control unit of the control system according to the rainfall time of the initial rainwater and the time required for the total initial rainwater in the corresponding water receiving area of the diversion well to flow to the diversion well;

and/or, the device for monitoring the time is a timer.