Divided-flow purification river channel communication network section standard reaching system and operation method

Abstract

The invention relates to a diversion purification river channel communication network section standard reaching system and an operation method. The control system comprises a main river channel, a river channel communication network, a water diversion purification system and an intelligent detection control system. Monitoring sections are arranged in the main river channel and the river channel communication network, at the branch water channels and at the branch water confluence, meanwhile, intelligent detection systems are arranged at the monitoring sections and used for monitoring water quality, and when the water quality reaches the set standard, the gate station is normally opened; when the water quality does not reach the standard, the intelligent detection control system judges the water quality condition in the river channel according to the water quality monitoring result and controls the gate station control system, so that the river channel gate is closed, the water diversion river channel opening gate is opened, the polluted water flow is introduced into the water diversion purification system, and the purified water flow reaching the standard is introduced into the main river channel again; and water flow which does not reach the standard is intercepted outside the main river channel and is subjected to a new round of water distribution and purification again through a pump station control system, so that the water quality of the main river channel stably reaches the standard. The flow division of the sewage and the purified water is scientifically, timely and intelligently implemented.

Description

Technical Field

[0001] The invention belongs to the field of environmental protection and water body restoration, and specifically relates to a segmented purification system for river section compliance and an operation method. Background Art

[0002] Water environment governance is a broad concept, and its content includes but is not limited to: pollutant reduction and environmental restoration, black and odorous water treatment, water resource management and protection, water quality improvement and real-time monitoring, rural water environment governance, etc. In recent years, with the development of industry, the quantity and scale of urban sewage treatment have continued to grow, and even rainwater and sewage are mixed and connected incorrectly, causing sewage to enter the rainwater pipe and directly discharge into the river. Many behaviors have led to more and more challenges to the water environment. Ensuring the quality of the water environment is a direction that the industry must control. Therefore, there is an urgent need for a scientific, effective and accurate measure to control the circulation and purification of river water quality. Better yet, a circulation purification system is needed to effectively treat river water.

[0003] The Chinese patent application with application number CN202322465694.3, "A Microbial River Purification Device", provides a method for purifying a river by quantitatively placing microorganisms. The specific process includes: (1) The one-way valve drives the connecting rod to open the piston plate, and the microbial purification liquid is placed through the feeding pipe. (2) There are tires under the device for the device to move, so that the device can carry out the feeding work more conveniently. (3) The device is equipped with two sets of internal and external motors. The internal motor can stir the microbial purification liquid, and the external motor can stir the water evenly after the feeding. This method realizes quantitative delivery in the river purification process through innovative technology, but does not solve the problem of automation.

[0004] The Chinese patent application "A river circulation purification green treatment device and process" with application number CN202310727565.9 provides a river circulation purification device including a hull, a drive motor, a joystick, a drug suction part, a drug discharge part and a drug feeding part. The device solves the problem that it is only suitable for fixed-point interception purification of the river, and cannot be used for local purification of severely polluted water quality in the river. If the river water in the area with poor water quality cannot flow, it cannot be purified, and the riverbed sludge cannot be purified, thereby affecting the denitrification and phosphorus removal effect. The device can push away the riverbed sludge and disperse it, so that the sludge can be purified to enhance the purification effect. However, the device has high labor costs and is not easy to maintain, and it is easy to cause excessive treatment during operation.

[0005] The Chinese patent application with application number CN202320829947.8, "An Ecological Dam with River Purification Function", provides an ecological dam with ecological purification function, which includes a dam body, an inner cavity water storage tank, a drainage notch, a purification tank, a purification box, a water pump, and a connecting hose. When the river water flows through the right side of the dam body, the water storage tank inlet allows the river water to enter the tank autonomously and cooperatively, and then the river water is sucked into the purification box in the purification tank through the connecting hose to be purified, and finally discharged back into the river through the drainage tank. This device achieves the purpose of river purification and solves the problem that the purification effect of the existing ecological dam is not stable enough, but the blockage problem of the dam has not been solved, and the reliability of the connecting hose and the maintenance cost of multiple water tanks are still problems. Summary of the invention

[0006] In view of the lack of accurate, timely and intelligent control measures in the current river water quality monitoring section compliance system, the present invention provides a segmented purification river section compliance system and operation method. Based on the water quality of the river water passing through the section, the opening and closing of the gate station is controlled by an intelligent system to achieve intelligent control, and the diversion of sewage and clean water is implemented scientifically, timely and intelligently. The purification strategy is adjusted according to the actual situation to ensure that the water quality of the main river is stable and meets the standards.

[0007] Technical solution: The purpose of the present invention is achieved through the following technical solutions:

[0008] A diversion and purification river channel interconnection network cross-section compliance system comprises a main river channel and a river channel interconnection network (1), a water diversion and purification system (2), and an intelligent detection and control system (3); wherein

[0009] The main river channel and the river channel interconnection network (1) include the main river channel and the multi-river channel interconnection network, and are provided with a plurality of monitoring sections (1-1, 1-2, 1-4, 1-5, 1-6, 3-16, 3-18) for monitoring the water quality of each river channel and providing data support for the intelligent detection and control system;

[0010] The water diversion and purification system (2) includes artificial wetland purification, which is used to purify water sources. After the main river gate station is closed, the water quality that does not meet the standard is purified by a large number of artificial wetlands arranged in the water diversion and purification system to improve the water quality. After the purified water quality reaches the preset standard, the gate station is opened to allow the water that meets the standard water quality to enter the river channel to optimize the river channel water quality. The water that does not meet the preset standard will re-enter the circulation purification system, mix with the water diverted from the main river channel, and be purified again through multiple river channel interconnection and artificial wetland purification.

[0011] The intelligent detection and control system (3) comprises a detection system (3-12) and a judgment system (3-13); the detection system (3-12), a gate station control system (3-14), gate stations (3-1, 3-2, 3-4, 3-5, 3-6), a pump station control system (3-15), and pump stations (3-7, 3-8, 3-9, 3-10, 3-11) are all regulated by the judgment system (3-13); the detection system (3-12) detects the water quality of the section set in the river channel, and sends the obtained water quality data to the judgment system (3-13) for analysis and judgment; the judgment system (3-13) controls the gate station control system (3-14) and the pump station control system (3-15) according to the judgment result, so that the purified water that meets the standards enters the main river channel, and the water that does not meet the standards is pumped back to the water diversion point by the pump station for re-purification.

[0012] The operation method of the diversion and purification river interconnection network section compliance system is as follows:

[0013] (I) According to the judgment system, the pump station control system (3-15) and the gate station control system (3-14) are controlled according to the judgment result. The following are specific manifestations of some situations:

[0014] Case 1: When the water quality detected in the monitoring sections (1-1, 3-16, 3-18) before the main river channel and before the dam after the purification system meets the standards, the river flows smoothly.

[0015] Case 2: When the water quality of the monitoring sections (1-1, 3-16, 3-18) partially meets the standards:

[0016] ① When the water quality detected by the monitoring section (1-1) does not meet the standard, but the water quality of the river in the monitoring section (3-16, 3-18) in front of the dam meets the standard: close the gate stations (3-1, 3-4, 3-5) of the main river and tributaries, start the water diversion and purification system, and let most of the river in the main river enter the purification system through the diversion channel (A2-1). The intelligent detection system monitors the water quality in real time. When the water quality of the monitoring section (1-4, 1-5) meets the standard, the gate stations (3-4, 3-5) are opened. When the water quality of the monitoring section (1-2) still meets the standard, the gate station (3-2) is opened and the river passes.

[0017] ② When the water quality of the monitoring sections (3-16, 3-18) is not up to standard, but the water quality of the monitoring section (1-1) is up to standard: close the gate stations (3-4, 3-5), start the water diversion and purification system, and a small part of the main river enters the diversion river A2-1), so that the two tributaries enter the purification system and mix with the qualified water. The intelligent detection system monitors the water quality in real time. When the water quality of the monitoring sections (1-4, 1-5) is up to standard, the gate stations (3-2, 3-4, 3-5) are opened and the river passes.

[0018] Case 3: When the water quality detected at the monitoring sections (1-1, 3-16, 3-18) does not meet the standards, close the sluice stations (3-1, 3-4, 3-5) and start the water diversion and purification system to make most of the main river flow into the purification system through the water diversion channel (A2-1). The intelligent detection system monitors the water quality in real time. When the water quality detected at the monitoring sections (1-2, 1-4, 1-5) meets the standards, open the sluice stations (3-4, 3-5). When the water quality still meets the standards after being detected at the monitoring section (1-2), open the sluice station (3-2) and the river passes through.

[0019] Case 4: When the water quality detected at the monitoring sections (1-2, 1-4, 1-5) still does not meet the standards, turn on the pumping station ().

[0020] Special case: When the water level detected by the liquid level gauge installed at the sluice station is higher than the flood level, all sluice stations are forced to open for flood discharge operations;

[0021] (2) Set the water quality standards for river detection

[0022] According to the Class III surface water environmental quality standards issued by the State Environmental Protection Administration and the General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China, referring to the four water quality indicators of dissolved oxygen, chemical oxygen demand (COD), ammonia nitrogen, and total phosphorus, set self-established quality labels that are higher than the Class III water quality standards as the basic items of the surface water environmental quality standards, and name these indicators c1, c2, c3, and c4 respectively; at the same time, input the respective data of c1, c2, c3, and c4 into the judgment system (3-13);

[0023] (3) Judge the flow conditions of the dams (3-17, 3-19):

[0024] ① When h < H (h: water surface height; H: dam height), open the sluice stations (3-17, 3-18) set at the dam and calculate the flow rate q of the dam river bi :

[0025]

[0026] Among them:

[0027] q bi is the flow rate of the dam river i, m 3 / s;

[0028] q zi is the flow rate of a single sluice i, m 3 / s;

[0029] n is the number of dams;

[0030] The total flow rate Q is then:

[0031]

[0032] q bi is the flow rate of dammed channel i, m 3 / s;

[0033] q wi is the discharge of the undammed channel i, m 3 / s;

[0034] q zi is the flow rate of a single sluice i, m 3 / s;

[0035] n is the number of dams;

[0036] ② When h>H (h: water surface height; H: dam height), open the sluice gates (3-17, 3-18) of the dam and calculate the dam river flow q bi :

[0037]

[0038] q bi is the flow rate of dammed channel i, m 3 / s;

[0039] q zi is the flow rate of a single sluice i, m 3 / s;

[0040] h is the height of the water surface, m;

[0041] H is the height of the dam, m;

[0042] n is the number of dams;

[0043] The total flow Q is:

[0044]

[0045] q bi is the flow rate of dammed channel i, m 3 / s;

[0046] q wi is the discharge of the undammed channel i, m 3 / s;

[0047] q zi is the flow rate of a single sluice i, m 3 / s;

[0048] h is the height of the water surface, m;

[0049] H is the height of the dam, m;

[0050] n is the number of dams;

[0051] (4) Analyze the opening status of the sluice stations and pumping stations:

[0052] 汇入判断系统(3-13),判断系统对所检测数据以及输入数据标准进行判断。 1n 、c 2n 、c 3n 、c 4n ) Merge the detected data (c

[0053] ① When c 1n 、c 2n 、c 3n 、c 4n <c1, c2, c3, c4, the sluice stations (3-1, 3-2, 3-4, 3-5, 3-6) are opened and the water flows out smoothly.

[0054] ② When one of the detected data in a certain sluice station a appears c 1n 、c 2n 、c 3n 、c 4n One of them is less than c1, c2, c3, c4, close the sluice station a and open the pumping station b to make the unpurified water flow back into the river for a new round of purification.

[0055] ③ When the water surface height of the monitoring section is higher than the flood line, all sluice stations are opened and the pumping stations are closed for flood discharge.

[0056] Compared with the prior art, the present invention has the following advantages:

[0057] (1) The present invention realizes the purification of river water quality during the river purification process. Through the water diversion and flow control system, the cyclic purification system, and the intelligent control system, the automatic purification of river water flow is realized, the river water flow is circulated, and the stable compliance of water quality is effectively and timely ensured.

[0058] (2) This system has low labor cost and simple operation. Through the intelligent control system, the real-time monitoring and control of river water are realized.

[0059] (3) The water quality standard set by this system is higher than the required water quality standard, realizing better river water quality, making full use of the self-purification ability of the river, and having good purification effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0060] Figure 1 It is a flowchart of the operation of a shunt purification river connection network section compliance system;

[0061] Figure 2 It is a plan view of a shunt purification river connection network section compliance system in the embodiment;

[0062] Figure 3 It is a schematic diagram of the cross-section structure of the dam.

[0063] In the figure: 1: Main river and river connection network; 2: Water diversion and purification system; 3: Intelligent detection and control system

[0064] Monitoring sections: 1-1, 1-2, 1-4, 1-5, 1-6, 3-16, 3-18; Tributary A: A2-1, A2-2, A2-3, A2-4, A2-5; Lock stations: 3-1, 3-2, 3-4, 3-5, 3-6, 3-17, 3-19; Pump stations: 3-7, 3-8, 3-9, 3-10, 3-11; Detection system: 3-12; Judgment system: 3-13; Lock station control system: 3-14; Pump station control system: 3-15; Dams: 3-17, 3-19 DETAILED DESCRIPTION

[0065] The technical solution of the present invention is further described through the following specific examples.

[0066] Example 1

[0067] A diversion and purification river channel interconnection network section compliance system includes three parts: a main river channel and a river channel interconnection network, a water diversion purification system, and an intelligent detection control system. The main river channel and the river channel interconnection network 1 include the main river channel and the multi-river channel interconnection network; monitoring sections are arranged at the main river channel and the river channel interconnection network, the diversion channel, and the diversion confluence, and an intelligent detection system is set at the monitoring section to monitor the water quality. When the water quality reaches the set standard, the gate station can be opened normally; when the water quality does not meet the standard, the intelligent detection control system will judge the water quality in the river channel through the water quality monitoring results, control the gate station control system, close the river gate and open the diversion river channel mouth gate, introduce the polluted water flow into the water diversion purification system, and introduce the purified water flow that meets the standard into the main river again. The water flow that does not meet the standard will be intercepted outside the main river channel, and a new round of water diversion purification will be carried out again through the pump station control system to ensure that the water quality of the main river channel is stable and meets the standard.

[0068] A plurality of monitoring sections are provided along the flow direction of the main river in the main river channel and the river channel interconnection network (1) for monitoring the water quality of the main river channel, including: monitoring sections (1-1, 1-2, 1-6), which are respectively provided at the front, middle and rear of the main river channel, where tributaries are separated or merged, for monitoring water quality; a plurality of monitoring sections are also provided along the flow direction of the branch river in the main river channel and the river channel interconnection network (1) for monitoring the water quality of the branch river channel, including: monitoring sections (1-4, 1-5, 3-16, 3-18), which are respectively provided in the river channel interconnection network composed of each branch river channel, for monitoring water quality. Figure 2As shown, in this embodiment, the system has a main river channel, and 5 tributaries A are arranged in an interlaced manner with the main river channel, with an artificial wetland in the middle. Among them, tributary A2-1 branches from the water inflow direction of the main river channel, bends along the water flow direction and flows into tributary A2-5, merges with the water inflow of tributary A2-4 and then merges into the main river channel; a monitoring section 1-1, a gate station 3-1 and a pump station 3-7 are provided at the branch of the main river channel; a monitoring section 1-2, a gate station 3-2 and a pump station 3-9 are provided behind the confluence point. Another part of the water body of tributary A2-4 merges into the main river channel in the downstream direction, and a monitoring section 1-6, a gate station 3-6 and an intelligent detection and control system 3 are provided at the confluence. After the tributaries A2-3, A2-5 and A2-4 merge into the main river, monitoring sections 1-5, sluice stations 3-5 and pumping stations 3-8 are installed in the tributaries behind the confluence point; monitoring sections, sluice stations and pumping stations are also installed in the tributaries before the confluence point. Specifically, monitoring section 3-16 and dam 3-17 are installed in tributary A2-3; monitoring section 3-18 and dam 3-19 are installed in tributary A2-4; monitoring section 1-4, sluice station 3-5 and pumping station 3-10 are installed behind the confluence point of the above three tributaries.

[0069] The water diversion and purification system 2 includes tributaries A, specifically: tributaries A2-1, tributaries A2-2, tributaries A2-3, tributaries A2-4, and tributaries A2-5; the interconnection network formed by connecting multiple rivers and the artificial wetland purification system are used to purify water. The main river channel is divided into water flows, and the water flows that do not meet the water quality standards enter the tributary A2-1, and are circulated and purified through the artificial wetlands arranged in the circulation purification system to purify the water quality, and then the water flow of tributary A2-1 enters the tributary A2-5. After the purified water quality reaches the preset standard, the gate station 3-5 is opened to allow the water that meets the standard water quality to enter the main river channel from the tributary A2-5 to optimize the water quality of the main river channel. The remaining water enters the river channel interconnection network through tributaries A2-3 and A2-4, and enters the dam for water storage or release after passing the water quality test at the monitoring sections 3-16 and 3-18. After the water quality of each tributary reaches the preset standard after purification, sluice station 3-5 will be opened to allow the water that meets the standard water quality to enter the main river from tributary A2-5, thereby optimizing the water quality of the main river. All water that does not meet the preset standard will re-enter the circulation purification system, mix with the water separated from the main river, and pass through the multi-channel interconnection network and artificial wetlands for purification again.

[0070] The intelligent control system 3 includes a sluice station, a level meter, a pump station, a pump station control system, a detection system, a judgment system, and a sluice station control system; wherein the sluice station is arranged behind the monitoring section in the above-mentioned main river channel and behind the monitoring section at the intersection of the regional tributary and the main river channel; the level meter is arranged inside the sluice station, and a pump station is arranged behind the monitoring section in the main river channel, and the pump station is connected to the pump station control system; the detection system 3-12, the sluice station control system 3-14 and the pump station control system 3-15 are all connected to the judgment system 3-13, the detection system 3-12 detects the water quality of the river channel and sends the data to the judgment system 3-13, and the judgment system 3-13 controls the sluice station control system 3-14 and the pump station control system 3-15 according to the judgment result, so that the purified water that meets the standards enters the main river channel, and the water that does not meet the standards is recirculated and purified. Thus, real-time dynamic monitoring and adjustment of the river water quality can be achieved.

[0071] The operation method of the above-mentioned segmented purification river section compliance system is as follows:

[0072] (1) Set the water quality standards that the river needs to meet (plus self-purification capacity):

[0073] According to the three-level standard of surface water environment quality issued by the State Environmental Protection Administration and the General Administration of Quality Supervision, Inspection and Quarantine, with reference to the four water quality indicators of dissolved oxygen (DO), chemical oxygen demand (COD), ammonia nitrogen (NH3-N) and total phosphorus (TP), set a self-set quality mark that is higher than the three-level water quality standard as the basic items of the surface water environment quality standard, and name these indicators c1, c2, c3 and c4 respectively;

[0074] According to the water quality standard to be achieved, the data of c1, c2, c3 and c4 are respectively input into the judgment system (3-13);

[0075] (2) Monitoring of water inflow from the river interconnection network:

[0076] When water comes from the river network, it will first pass through the monitoring section (1-1, 3-16, 3-18) in the front of the main river, and the water quality passing through the monitoring section will be tested;

[0077] A detection system (3-12) is set up in the monitoring section. The detection system (3-12) detects the water quality of the river and detects the above four indicators, which are named c 1n 、c 2n 、c 3n 、c 4n ;

[0078] Note:

[0079] c inIndicates the data of various indicators n measured by the detection systems set in each monitoring section (1-i, i = 1, 2, 3, 4, 5);

[0080] (3) Judge the flow situation of the dams (3-17, 3-19):

[0081] ① Refer to Figure 3 , when h < H (h: water surface height; H: dam height), open the sluice stations (3-16, 3-18) set in the dam, and calculate the river flow q of the dam bi :

[0082]

[0083] Among them:

[0084] q bi is the flow of the river channel i with the dam, m 3 / s;

[0085] q zi is the flow of a single sluice i, m 3 / s;

[0086] n is the number of dams;

[0087] The total flow Q is then:

[0088]

[0089] q bi is the flow of the river channel i with the dam, m 3 / s;

[0090] q wi is the flow of the river channel i without the dam, m 3 / s;

[0091] q zi is the flow of a single sluice i, m 3 / s;

[0092] n is the number of dams;

[0093] ② When h > H (h: water surface height; H: dam height), open the sluice stations (3-16, 3-18) set in the dam, and calculate the river flow q of the dam bi :

[0094]

[0095] q bi is the flow of the river channel i with the dam, m 3 / s;

[0096] q ziis the flow rate of a single sluice i, m 3 / s;

[0097] h is the height of the water surface, m;

[0098] H is the height of the dam, m;

[0099] n is the number of dams;

[0100] The total flow Q is:

[0101]

[0102] q bi is the flow rate of dammed channel i, m 3 / s;

[0103] q wi is the discharge of the undammed channel i, m 3 / s;

[0104] q zi is the flow rate of a single sluice i, m 3 / s;

[0105] h is the height of the water surface, m;

[0106] H is the height of the dam, m;

[0107] n is the number of dams;

[0108] (4) When gate station a is closed:

[0109] The detected data (c 1n 、c 2n 、c 3n 、c 4n ) is imported into the judgment system (3-13), and the judgment system judges the detected data and the input data standards.

[0110] When the detection data in a certain gate station a appears c 1n 、c 2n 、c 3n 、c 4n When one of the above is greater than c1, c2, c3, and c4, gate station a is closed and the pump station at the gate station is opened to allow the unpurified water to re-enter the river channel for a new round of purification.

[0111] Example 2

[0112] (1) Set the water quality standards that the river needs to meet (plus self-purification capacity):

[0113] According to the third-level surface water environmental quality standard issued by the State Environmental Protection Administration and the General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China, referring to four water quality indicators of dissolved oxygen (DO), chemical oxygen demand (COD), ammonia nitrogen (NH₃-N), and total phosphorus (TP), set a self-defined quality standard that is higher than the third-level water quality standard as the basic items of the surface water environmental quality standard, and name these indicators c1, c2, c3, and c4 respectively;

[0114] According to the required water quality standard, input the respective data of c1, c2, c3, and c4 into the judgment system (3-13);

[0115] (2) Monitor the incoming water of the river channel connection network:

[0116] When the water in the river channel connection network comes, it will first pass through the monitoring sections (1-1, 3-16, 3-18) at the front, middle, and rear of the main river channel to detect the water quality flowing through the monitoring sections;

[0117] A detection system (3-12) is set in the monitoring section. The detection system (3-12) detects the river water quality, detects the above 4 indicators, and names them c 1n , c 2n , c 3n , c 4n ;

[0118] Note:

[0119] c in represents the data of pollutant n measured by the detection system set in each monitoring section (1-i, i = 1, 2, 3, 4, 5);

[0120] (3) Judge the flow conditions of the dams (3-17, 3-19):

[0121] ① When h < H (h: water surface height; H: dam height), open the sluice stations (3-16, 3-18) set in the dam, and calculate the river flow q of the dam bi :

[0122]

[0123] Among them:

[0124] q bi is the flow of river channel i with a dam, m 3 / s;

[0125] q zi is the flow of a single sluice i, m 3 / s;

[0126] n is the number of dams;

[0127] The total flow Q is then:

[0128]

[0129] q bi is the flow rate of dammed channel i, m 3 / s;

[0130] q wi is the discharge of the undammed channel i, m 3 / s;

[0131] q zi is the flow rate of a single sluice i, m 3 / s;

[0132] n is the number of dams;

[0133] ② When h>H (h: water surface height; H: dam height), open the sluice gates (3-16, 3-18) of the dam and calculate the dam river flow q bi :

[0134]

[0135] q bi is the flow rate of dammed channel i, m 3 / s;

[0136] q zi is the flow rate of a single sluice i, m 3 / s;

[0137] h is the height of the water surface, m;

[0138] H is the height of the dam, m;

[0139] n is the number of dams;

[0140] The total flow Q is:

[0141]

[0142] q bi is the flow rate of dammed channel i, m 3 / s;

[0143] q wi is the discharge of the undammed channel i, m 3 / s;

[0144] q zi is the flow rate of a single sluice i, m 3 / s;

[0145] h is the height of the water surface, m;

[0146] H is the height of the dam, m;

[0147] n is the number of dams;

[0148] (4) When all the sluice stations are opened:

[0149] The data (c 1n , c 2n , c 3n , c 4n ) detected by each monitoring section (1-1, 1-2, 1-4, 1-5, 1-6, 3-16, 3-18) is fed into the judgment system (3-13), and the judgment system judges the detected data and the input data standard.

[0150] ① When c 1n , c 2n , c 3n , c 4n < c1, c2, c3, c4, the sluice stations (3-1, 3-2, 3-4, 3-5, 3-6) are opened and the water flows out smoothly.

[0151] ② When the water surface height of the monitoring section is higher than the flood line, all the sluice stations are opened and the pumping stations are closed for flood discharge.

Claims

1. A diversion and purification river channel interconnection network section compliance system, characterized in that: It includes a main river channel and a river channel interconnection network (1), a water diversion and purification system (2), and an intelligent detection and control system (3); wherein the main river channel and the multi-river channel interconnection network of the main river channel and the river channel interconnection network (1) are provided with one or more monitoring sections at the locations where the tributaries are opened or merged, for monitoring the water quality of each river channel and providing data support for the intelligent detection and control system; The water diversion and purification system (2) includes an artificial wetland, which is a main river channel that divides one or more tributaries, and an artificial wetland is set between the tributaries. Water in the main river channel that does not meet the water quality standards flows into the tributaries and is purified by the artificial wetland. The purified water that meets the standards flows into the main river channel; The intelligent detection and control system (3) comprises a detection system (3-12) and a judgment system (3-13); wherein the detection system (3-12), a gate station control system (3-14), one or more gate stations, a pump station control system (3-15), and one or more pump stations are all connected to the judgment system (3-13) and regulated by the judgment system (3-13), and the detection system is arranged in front of each gate station.

2. The method for operating the diversion and purification river channel interconnection network cross-section compliance system according to claim 1 is characterized in that: Here are the steps: (1) The monitoring section set up upstream of the main river channel is used to test the water quality flowing through it. If the water quality exceeds the standard, the gate station of the monitoring section and the gate station at the end of the water diversion and purification system are closed to prevent the substandard water from being discharged from the main river channel or tributaries; the water diverted from the main river channel that does not meet the standard is purified by the artificial wetlands arranged in the water diversion and purification system to improve the water quality index; after the purified water quality reaches the preset standard, the gate station is opened to allow the water that meets the standard to enter the river channel; the water that does not meet the preset standard will re-enter the circulation purification system, mix with the water diverted from the main river channel, and be purified again through multiple river channels and artificial wetlands; (2) The detection system (3-12) is installed in front of each monitoring section to detect the water quality of the water flowing through the monitoring section in the river channel, and send the obtained water quality data to the judgment system (3-13) for analysis and judgment. The judgment system (3-13) controls the gate station control system (3-14) and the pump station control system (3-15) according to the judgment result, so that the purified water that meets the standards enters the main river channel, and the water that does not meet the standards is pumped back to the water diversion point by the pump station for re-purification.

3. The operating method of the diversion and purification river channel interconnection network section compliance system according to claim 2 is characterized in that: The main river channel and the river channel interconnection network (1) include a main river channel, and the water diversion and purification system (2) includes one or more tributaries arranged in parallel in the main river channel, wherein at least one tributary is separated from the upstream of the main river channel, bends to enclose an artificial wetland, and merges with all or part of the water bodies of one or more other tributaries into the main river channel. Monitoring sections and dams are set at the location where the tributary is separated, the location where it merges into the main river channel, and the tail end of the tributary.

4. The method for operating a diversion and purification river channel interconnection network cross-section compliance system according to claim 2 is characterized in that: The environmental capacity (W) of the main river and the river network for the nth pollutant Bn ), the nth pollutant amount (W n ), the nth pollutant purification amount (J n ) is analyzed as follows: ① Calculate the environmental capacity of the river network (W Bn ): The environmental capacity of the river network includes the environmental capacity of the main river and its branches (W Bn ), so we need to calculate the total flow of the river network (Q): Q=∫(q wi +q bi ) Where: Q is the total flow of the river network, m 3 / s; q wi is the discharge of the undammed channel i, m 3 / s; q bi is the flow rate of dammed channel i, m 3 / s; Environmental capacity of pollutant n in the river flow network (W Bn )for: W Bn is the environmental capacity of the river network pollutant n, g / d; C sn The concentration value of the pollutant n required for input into the judgment system, mg / L; C dn is the current pollutant concentration value in the river, mg / L; K is the first-order reaction rate constant; Q is the total flow of the river network, m 3 / s; ② Calculate the total amount of pollutants in the river network: (1) When there is no sewage outlet in the river network: W n =C dn ×Q Where: W n is the amount of pollutant n in the river network, mg; C dn is the current pollutant concentration value in the river, mg / L; Q is the total flow of the river network, m 3 / s; (2) When there is a sewage outlet in the river network: Wn=C dn ×(Q-Q v )+C vn ×Q v Where: W n is the amount of pollutant n in the river network, mg; C dn is the current pollutant concentration value in the river, mg / L; C vn is the pollutant concentration value of the current river sewage outlet, mg / L; Q is the total flow of the river network, m 3 / s; Q v is the total flow rate of the sewage outfall, m 3 / s; ③ Calculate the purification amount of pollutant n in the river network (J n ): J n =(J dn +J tn +J sn +R n )×Q Where: J n Purification amount of pollutant n in the river network, mg J tn is the migration capacity of the river flow network, mg / L; J sn is the self-purification capacity of the river flow network, mg / L; R n is the purification capacity of the artificial wetlands in the river flow network, mg / L; Q is the total flow of the river network, m 3 / s; Since artificial wetlands are set up in the river, the sewage purification rate of a single artificial wetland is set to V j . The purification capacity of artificial wetlands in the river flow network (R n ): R n is the purification capacity of the artificial wetlands in the river flow network, mg / L; Q is the total flow of the river network, m 3 / s; V j is the sewage purification rate of a single artificial wetland, mg / (L·d); q wi is the discharge of the undammed channel i, m 3 / s q bi is the flow rate of dammed channel i, m 3 / s.

5. According to the method for operating the cross-section standard-reaching system of the diversion and purification river interconnection network described in claim 2, the main river water purification process involves the following situations: Case 1: When the water quality detected by the monitoring section (1-1) upstream of the main river and the monitoring sections (3-16, 3-18) at the tail end of the tributary enclosing the artificial wetland meets the standard, the river passes smoothly; Case 2: When the water quality of the monitoring section involved in Case 1 partially meets the standard: ① When the water quality of the monitoring section (1-1) upstream of the main river fails to meet the standard, but the water quality of the monitoring section (3-16, 3-18) at the tail end of the tributary surrounding the artificial wetland meets the standard: close the gate station (3-1) upstream of the main river and all the gate stations (3-4, 3-5) flowing into the main river, start the water diversion and purification system, and make most of the river in the main river enter the purification system through the tributary (A2-1); the intelligent detection system monitors the water quality in real time, and when the water quality of the monitoring section (1-4, 1-5) at the tail end of the tributary flowing into the main river meets the standard, the gate station is opened, and the water enters the main river. When the monitoring section (1-2) in the middle of the main river still meets the standard, the gate station is opened, and the river passes through the entire main river; ② When the monitoring section (3-16, 3-18) at the end of the tributary detects that the water quality does not meet the standard, while the monitoring section (1-1) upstream of the main river successfully meets the water quality standard: close the gate station (3-4, 3-5) at the end of the tributary, start the water diversion and purification system, and a small part of the river in the main river enters the tributary (A2-1), so that the two tributaries enter the purification system and mix with the qualified water at the same time; the intelligent detection system monitors the water quality in real time, and when the water quality of the monitoring section (1-4, 1-5) where the tributary merges into the main river meets the standard, the gate station (3-2) of the main river and the gate station (3-4, 3-5) of the tributary are opened, and the river passes; Case 3: When the water quality detected by the monitoring sections (1-1, 3-16, 3-18) upstream of the main river and in the tributaries is not up to standard, the gate stations (3-1, 3-4, 3-5) upstream of the main river and at the end of the confluence of the tributaries are closed, and the water diversion and purification system is started, so that most of the river in the main river enters the purification system through the tributary (A2-1); the intelligent detection system monitors the water quality in real time. When the water quality detection of the monitoring section (1-2) in the middle of the main river and the monitoring section (1-4, 1-5) set in the tributaries meets the standard, the gate stations (3-4, 3-5) where the tributaries merge into the main river are opened. When the detection of the monitoring section (1-2) in the middle of the main river still meets the standard, the gate station (3-2) in the middle of the main river is opened and the river passes; Case 4: When the water quality detected by the monitoring section (1-2) upstream of the main river and the monitoring section (1-4, 1-5) where the tributaries merge into the main river still does not meet the standards, the pumping stations (3-9, 3-10) are turned on; Case 5: When the water level detected by the liquid level gauge installed at the sluice station is higher than the flood level, all sluice stations are forced to open and perform flood discharge operations.

6. Based on the operating method of the diversion and purification river channel interconnection network section compliance system according to claim 5, it is characterized in that: In the above situations 1, 2①, 2②, 3, and 4, the specific steps for controlling the gate station and the pump station are as follows: (1) Set the water quality standards that rivers need to meet: According to the surface water environmental quality tertiary standard released in the industry, referring to four water quality indicators of dissolved oxygen, chemical oxygen demand (COD), ammonia nitrogen, and total phosphorus, a self-set quality standard that is a certain level higher than the tertiary water quality standard is set as the basic item of the surface water environmental quality standard, and these indicators are named c1, c2, c3, and c4 respectively; at the same time, the respective data of c1, c2, c3, and c4 are input into the judgment system (3-13). (2) Monitor the incoming water of the river channel connection network: When the water comes into the river channel connection network, it will first pass through the monitoring sections (1-1, 3-16, 3-18) set in the upper reaches of the main river channel and the tributaries, and the water quality flowing through the monitoring sections is detected. A detection system (3-12) is set up in the monitoring section. The detection system (3-12) detects the water quality of the river and detects the above four indicators, which are named c 1n 、c 2n 、c 3n 、c 4n ; Note: c in Represents the data of each index n measured by the detection system set in the monitoring section (1-i, i=1, 2, 3, 4, 5); (3) Judge the flow conditions of the dams (3-17, 3-19) set in the two tributaries enclosing the artificial wetland: ① When h < H, open the sluice stations (3-17, 3-18) set in the two dams, and calculate the river channel flow qbi of the dams: Among them: q bi is the flow rate of dammed channel i, m 3 / s; q zi is the flow rate of a single sluice i, m 3 / s; n is the number of dams; h is the water surface height; H is the dam height; The total flow Q is: q bi is the flow rate of dammed channel i, m 3 / s; q wi is the discharge of the undammed channel i, m 3 / s; q zi is the flow rate of a single sluice i, m 3 / s; n is the number of dams; ② When h>H, open the dam gate station (3-17, 3-18) and calculate the dam river flow q bi : q bi is the flow rate of dammed channel i, m 3 / s; q zi is the flow rate of a single sluice i, m 3 / s; h is the water surface height, m; H is the dam height, m; n is the number of dams; The total flow Q is: q bi is the flow rate of dammed channel i, m 3 / s; q wi is the discharge of the undammed channel i, m 3 / s; q zi is the flow rate of a single sluice i, m 3 / s; h is the water surface height, m; H is the dam height, m; n is the number of dams; (4) Judge the opening conditions of the sluice stations and pumping stations: The data detected by each monitoring section c 1n ~c 4n ) is imported into the judgment system (3-13), and the judgment system judges the detected data and the input data standard: ①When c 1n , c 2n , c 3n , c 4n <When c1, c2, c3, c4, all the sluice stations are opened and the water flows out smoothly; ②When the detection data in a certain gate station appears c 1n 、c 2n 、c 3n 、c 4n When one of the above is less than c1, c2, c3, c4, the gate station is closed and the pumping station (3-4, 3-9) is opened to allow the unpurified water to re-enter the river channel for a new round of purification. ③ When the water surface height of the monitoring section is higher than the flood line, all sluice stations are opened and the pumping stations are closed for flood discharge; Flow process of the tributary circulation purification system: The water body enters the tributary circulation purification system. First, it flows from the pumping station (3-7) upstream of the main river channel into the tributary (A2-1), and then enters the next-level branch circulation tributary (A2-2). After purification, it is汇总 into (A2-5); the incoming water from the external tributaries (A2-3, A2-4) enters the circulation system. After participating in the water quality purification, the qualified water body enters the monitoring section (1-2) in the middle reaches of the main river channel after passing through the monitoring section (1-5) of the confluence water body of the tributaries; the remaining water body flows into the pumping station (3-10) through the monitoring section (1-4) in the tributary and finally converges to the monitoring section downstream of the main river channel (1-6); after the total flowing water quality is qualified, the sluice station (3-6) downstream of the main river channel is opened and flows out through the pumping station (3-11); if the total flowing water quality is unqualified, it will enter the tributary circulation purification system again and flow out after the water quality is qualified.

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