Rainwater mixed connection traceability monitoring device and use method thereof

Abstract

The application discloses a rainwater mixing connection traceability monitoring device, which comprises a tracer flushing system and a tracer detection system. The tracer flushing system comprises a water collecting device and a tracer adding area. The tracer detection system comprises a tracer detection device. The water collecting device comprises a water collecting fence, a water collecting disc and a water collecting port. The water collecting disc is arranged below the water collecting fence. The water collecting port is arranged at a gap of the water collecting fence. A tracer adding area is arranged below one side of the water collecting port. The tracer adding area comprises a tracer storage area and a water collecting flowing channel. The water collecting flowing channel comprises a flowing groove, a flowing partition plate and a flowing bottom plate. The flowing bottom plate is connected with the flowing groove. The flowing partition plate is connected with the flowing groove. Spaces between the flowing partition plate and the flowing bottom plate form the tracer storage area. A tracer flowing-out groove is arranged at one side of the flowing groove. A tracer mixing device is arranged at a lower end of the tracer flowing-out groove.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of municipal monitoring and analysis, in particular to a rainwater mixed connection tracing monitoring device and a use method thereof. BACKGROUND

[0002] The drainage pipe network is a very important infrastructure of the city, and the safety and stability of the drainage pipe network play an extremely important role in the normal operation of the city. Due to historical reasons, the quality of the domestic pipe network is generally poor, and the situation of wrong connection, missing connection and random connection is serious, which greatly affects the normal operation of the drainage pipe network, and also causes a huge negative impact on the water environment quality.

[0003] In order to find out the defects of the drainage pipe network, the main means currently used are manual checking, QV / CCTV video checking and the like, on the one hand, the cost is huge, on the other hand, due to the lack of continuity of checking, only the situation at the checking time can be represented. At the same time, affected by the pipe garbage and equipment cost, the traditional monitoring system based on water quantity and water quality monitoring quality calculation is also difficult to realize the comprehensive monitoring of the urban pipe network. There are many missing situations in the checking of the mixed situation of the pipe outside water (rainwater, groundwater, river and lake water).

[0004] At the same time, the rainwater mixed connection analysis work is closely related to the capture of the rainfall opportunity, and needs to pay attention to the urban rainfall trend at all times, and make preparation for monitoring in advance before the rain. The traditional temporary flow and pollutant concentration analysis method is time-consuming and laborious in the early stage, and may be delayed due to the rainfall false alarm.

[0005] The urban pipe network system urgently needs a rainwater mixed connection tracing monitoring device and a use method thereof which are convenient, low in cost and high in sensitivity. SUMMARY

[0006] The present application aims to provide a rainwater mixed connection tracing monitoring device and a use method thereof to solve the problems in the background art, the tracer module of the rainwater mixed connection tracing monitoring device can passively realize the addition of the same concentration of conductive liquid and place inorganic salt particles into the sewer tracing monitoring environment, the tracer module is low in height, effectively adheres to the curbstone, the device running process does not cause influence on the pedestrian traffic, can be arranged for a long time, and passively realizes the capture of the rainwater mixed connection working condition.

[0007] In order to achieve the above-mentioned purpose, the present application provides the following technical scheme:

[0008] A rainwater mixing connection traceability monitoring device, comprising a tracer flushing system and a tracer detection system, the tracer flushing system comprising a catchment device and a tracer adding area, and the tracer detection system comprising a tracer detection device, the catchment device comprising a catchment fence, a catchment tray and a catchment opening, the catchment tray being arranged below the catchment fence, the catchment opening being arranged at the gap of the catchment fence, the tracer adding area being arranged below one side of the catchment opening, the tracer adding area comprising a tracer storage area and a catchment flow channel, the catchment flow channel comprising a flow groove, a flow partition and a flow bottom plate, the flow bottom plate being connected with the flow groove, the flow partition being connected with the flow groove, and the flow partition and the flow bottom plate being spaced apart to form the tracer storage area, one side of the flow groove being provided with a tracer outflow groove, the elevation of the tracer outflow groove being slightly lower than the upper surface of the catchment tray, the lower end of the tracer outflow groove being provided with a tracer mixing device, one side of the tracer mixing device being provided with a flushing device, the tracer detection device comprising a sensor and a cover plate, the sensor being arranged at the lower end of the cover plate.

[0009] The flow groove comprises a flow inlet and a flow outlet, the flow inlet being arranged at the lower end of the catchment opening, the flow outlet being symmetrically arranged with the flow inlet with respect to the flow partition, the tracer storage area being arranged at the lower end of the flow inlet and the lower end of the flow outlet, a space being arranged between the flow partition and the flow bottom plate, and the flow partition separating the flow groove into a U-shaped water channel.

[0010] A cloth can be placed on the flow outlet and the tracer outflow groove, one section of the cloth being fixed in the tracer outflow groove by a fixing plate, and the other section of the cloth being fixedly connected in the U-shaped water channel.

[0011] The flow outlet is connected with the tracer outflow groove, the tracer outflow groove comprising an outflow groove baffle and an outflow groove bottom plate, the outflow groove baffle and the outflow groove bottom plate being connected with the flow groove at the flow outlet, respectively.

[0012] The tracer mixing device comprises a tracer mixing bottom plate, a mixing fence being arranged on the periphery of the tracer mixing bottom plate, the mixing fence being arranged to collect mixed water from the catchment device and along the curb stone, and the catchment device being arranged on one side of the curb stone.

[0013] The inside of the flushing weir body is vertically related to the tracer mixing bottom plate at an angle of 90°, and the flushing weir body is related to the curb stone at an angle of less than 45°.

[0014] The flushing device comprises a flushing weir body and a melting hole, the melting hole being parallel to the direction of incoming water, the flushing weir body being arranged on one side of the tracer mixing device, and the melting holes being uniformly arranged on the flushing weir body.

[0015] The melting hole is a tapered hole body arranged on the scour weir body.

[0016] The sensor comprises a sensing battery and an electronic cabin, the sensing battery is connected with the electronic cabin, the lower end of the sensing battery is provided with a probe interface, the lower end of the probe interface is provided with a probe cable, and the lower end of the probe cable is provided with a probe.

[0017] The shape of the cover plate is engaged with the shape of the lock hole of the inspection well cover.

[0018] The tracer is one of inorganic salts such as sodium chloride and potassium chloride.

[0019] A use method of a rainwater mixed connection traceability monitoring device, comprising the following steps:

[0020] S1: the rainwater mixed connection traceability monitoring device places inorganic salt in the tracer storage area, wherein the inorganic salt is placed on the flowing bottom plate with a certain interval at the lower end of the flowing partition plate, and the inorganic salt is placed with a certain thickness to ensure use in the rainwater scouring process; when it rains, the falling rainwater is collected at the water collecting port through the water collecting fence and the water collecting disc, and the water collecting fence is higher than the ground water; the collected rainwater flows out through the water collecting port and enters the flowing inlet, and then flows into the flowing groove through the flowing inlet; the rainwater falls into the tracer storage area through the flowing inlet.

[0021] S2: after entering the tracer storage area, when the rainfall is large, the rainwater scours and melts the inorganic salt, so that the inorganic salt solution ions are contained in the rainwater; the inorganic salt solution ions flow out of the rainwater through the flowing outlet and enter the tracer outlet groove, and then flow into the tracer mixing device through the tracer outlet groove; when the rainfall is small, the flowing outlet and the tracer outlet groove are provided with a cloth, a proper amount of pure water is added to the tracer storage area to ensure that the lower edge of the cloth is slightly higher than the water level, and the inorganic salt solution ions flow out of the rainwater through the capillary action of the cloth and enter the tracer outlet groove, and then flow into the tracer mixing device through the tracer outlet groove.

[0022] S3: the inorganic salt ions flow into the tracer mixing device during the flowing process, other rainwater flows along the road along the ground and enters the tracer mixing bottom plate, and then is mixed; in this process, the mixed rainwater enters the scouring device, the scour weir body of the scouring device is higher than the tracer mixing bottom plate, a jump wave layer is formed during the flowing process, the inorganic salt particles carried out from the tracer storage area are contained in the jump wave layer rainwater, the inorganic salt particles can be melted and scoured in the melting hole in the scour weir body to prevent the inorganic salt particles from flowing out, ensure the stability of the tracer output, and the inorganic salt is melted in the melting hole, and then the mixed rainwater enters the urban pipeline.

[0023] S4: After the rainwater enters the urban pipeline, in order to ensure the outflow monitoring of the inorganic salt rainwater, a plurality of tracer detection devices are arranged in the lock holes of different inspection wells in the urban pipeline, the rainwater is monitored through the sensor of the tracer detection device, the conductivity monitoring of the sensing probe is carried out in the monitoring process, the water tracing substance is monitored through the probe into the water, the qualitative monitoring of mixing and the semi-quantitative analysis of mixing distance are realized through the peak value of the wave conductivity change.

[0024] Compared with the prior art, the beneficial effects of the present application are:

[0025] 1) The rainwater mixing and tracing device tracer module can realize the stable concentration of the conductive liquid and place the inorganic salt particles into the sewer tracing monitoring environment without power supply;

[0026] 2) The setting of the water collecting device effectively matches the road curb stone, and the device running process does not affect the pedestrian traffic;

[0027] 3) The tracer is not affected by the environment, and can be placed in the measured place for a long period of time before the rain, and the preparation is convenient;

[0028] 4) A cloth can be placed at the outlet of the tracer module, and the capillary phenomenon can still realize the release of the tracer in the case of insufficient rainwater.

[0029] 5) The inner side of the flushing weir body is in a 90° vertical relationship with the tracer mixing bottom plate, and the flushing weir body and the road curb stone form an angle of less than 45 degrees, under the guidance of the weir body, the water flow is collected below the outlet of the tracer module, and under the influence of the vertical retaining wall on the inner side of the flushing weir body, a strong mixing vortex is formed below the outlet of the tracer module, and the mixing of the tracer is accelerated.

[0030] 6) The weir body is provided with a through hole below, which can guide the fine sand and prevent the weir body from being silted to weaken the mixing.

[0031] 7) The conductivity monitoring module of the rainwater mixing and tracing device can realize the probe into the water detection and the water tracing substance monitoring at the same time;

[0032] 8) There is a certain gap between the conductivity monitoring module of the rainwater mixing and tracing device and the lock hole of the inspection well, and the monitoring probe can be effectively shaken by the wheel rolling, so as to prevent the probe from being attached with silt;

[0033] 9) The rainwater mixing and tracing monitoring and analysis method uses harmless, cheap and inorganic substances such as sodium chloride as tracers, uses the tracer throwing module and the tracer monitoring module, realizes the qualitative monitoring of mixing and the semi-quantitative analysis of mixing distance through the peak value of the wave conductivity change. BRIEF DESCRIPTION OF DRAWINGS

[0034] Figure 1Structure principle schematic view of rainwater mixed connection traceability monitoring device of the present application.

[0035] Figure 2 Side structure schematic view of rainwater mixed connection traceability monitoring device of the present application.

[0036] Figure 3 Structure principle schematic view of water collection device of the present application.

[0037] Figure 4 Structure principle schematic view of flushing device of the present application.

[0038] Figure 5 Structure principle schematic view of tracer detection device of the present application.

[0039] Figure 6 Combined structure schematic view of cover plate and inspection well cover of the present application.

[0040] Figure 7 Structure principle schematic view of cloth strip position of the present application.

[0041] Reference signs: 1, water collection device, 2, tracer adding area, 3, tracer detection device, 4, water collection fence, 5, water collection disc, 6, water collection port, 7, tracer storage area, 8, water collection flowing channel, 9, flowing groove, 10, flowing partition, 11, flowing bottom plate, 12, tracer flowing groove, 13, tracer mixing device, 14, flushing device, 15, sensor, 16, cover plate, 17, flowing inlet, 18, flowing outlet, 19, flowing groove baffle, 20, flowing groove bottom plate, 21, tracer mixing bottom plate, 22, mixing fence, 23, curbstone, 24, flushing weir body, 25, melting hole, 26, sensing battery, 27, electronic cabin, 28, probe interface, 29, probe cable, 30, probe, 31, inspection well cover, 32, cloth strip. DETAILED DESCRIPTION

[0042] The specific embodiments of the present application are described in detail below in combination with the drawings.

[0043] The rainwater mixed connection traceability monitoring device comprises a tracer flushing system and a tracer detection system, the tracer flushing system comprises a water collecting device 1 and a tracer adding area 2, the tracer detection system comprises a tracer detection device 3, the water collecting device 1 comprises a water collecting fence 4, a water collecting disc 5 and a water collecting port 6, the water collecting disc 5 is arranged below the water collecting fence 4, the water collecting port 6 is arranged at the gap of the water collecting fence 4, the tracer adding area 2 is arranged below one side of the water collecting port 6, the tracer adding area 2 comprises a tracer storage area 7 and a water collecting flowing channel 8, the water collecting flowing channel 8 comprises a flowing groove 9, a flowing partition plate 10 and a flowing bottom plate 11, the flowing bottom plate 11 is connected with the flowing groove 9, the flowing partition plate 10 is connected with the flowing groove 9, the space between the flowing partition plate 10 and the flowing bottom plate 11 forms the tracer storage area 7, one side of the flowing groove 9 is provided with a tracer flowing groove 12, the lower end of the tracer flowing groove 12 is provided with a tracer mixing device 13, one side of the tracer mixing device 13 is provided with a flushing device 14, the tracer detection device 3 comprises a sensor 15 and a cover plate 16, the sensor 15 is arranged at the lower end of the cover plate 16; the tracer module of the rainwater mixed connection traceability monitoring device can passively realize the adding of the isodensity conductive liquid and the placing of the inorganic salt particles into the sewer tracing monitoring environment, the tracer module has a low height, can effectively adhere to the curbstone, will not affect the pedestrian traffic during the operation of the device, and can provide more information for the traceability analysis.

[0044] The flowing groove 9 comprises a flowing inlet 17 and a flowing outlet 18, the flowing inlet 17 is arranged at the lower end of the water collecting port 6, the flowing outlet 18 is symmetrically arranged with the flowing inlet 17 about the flowing partition plate 10, the tracer storage area 7 is arranged at the lower end of the flowing inlet 17, a spacing is arranged between the flowing partition plate 10 and the flowing bottom plate 11, and the flowing partition plate 10 divides the flowing groove 9 into a U-shaped water flowing channel.

[0045] The flowing outlet 18 is connected with the tracer flowing groove 12, the tracer flowing groove 12 comprises a flowing groove baffle 19 and a flowing groove bottom plate 20, and the flowing groove baffle 19 and the flowing groove bottom plate 20 are connected with the flowing groove 9 at the flowing outlet 18 respectively.

[0046] Cloths 32 can be arranged on the flowing outlet 18 and the tracer flowing groove 12, one section of the cloth 32 is fixed in the tracer flowing groove 12 through a fixing plate, and the other section of the cloth 32 is fixedly connected and arranged in the U-shaped water flowing channel.

[0047] The tracer mixing device 13 includes a tracer mixing base plate 21, and a mixing enclosure 22 is provided around the tracer mixing base plate 21. The mixing enclosure 22 respectively collects the water collected by the water collection device 1 and the mixed water flowing from the ground to the road curb and along the side of the curbstone 23. The water collection device 1 is located on one side of the curbstone 23.

[0048] The flushing and melting device 14 includes a flushing and melting weir 24 and melting holes 25. The flushing and melting weir 24 is disposed on one side of the tracer mixing device 13, and the melting holes 25 are uniformly disposed on the flushing and melting weir 24.

[0049] The melting hole 25 is a conical hole, and the conical holes are arranged on the melting weir from large to small.

[0050] The sensor 15 includes a sensing battery 26 and an electronic compartment 27. The sensing battery 26 is connected to the electronic compartment 27. A probe interface 28 is provided at the lower end of the sensing battery 26. A probe cable 29 is provided at the lower end of the probe interface 28. A probe 30 is provided at the lower end of the probe cable 29. The probe 30 is a conductivity detection probe. The conductivity monitoring module of the rainwater mixing traceability device can simultaneously realize probe water entry detection and water traceability substance monitoring.

[0051] The shape of the cover plate 16 is engaged with the shape of the lock hole of the manhole cover 31; the conductivity monitoring module of the rainwater mixing source tracing device can be adapted to the manhole lock hole to achieve installation without opening the cover. There is a certain gap between it and the manhole lock hole, and the monitoring probe can be effectively shaken by the wheel rolling to prevent the probe from being covered by silt.

[0052] The tracer is an inorganic salt such as sodium chloride or potassium chloride. The rainwater mixing source tracing and analysis method uses harmless, inexpensive, and inorganic substances such as sodium chloride as tracers. With the help of tracer dosing module and tracer monitoring module, qualitative monitoring of mixing and semi-quantitative analysis of mixing distance are achieved by measuring the peak value of wave conductivity changes.

[0053] A method for using a rainwater mixing source tracing monitoring device under heavy rain conditions includes the following steps:

[0054] S1: The rainwater mixing and tracing monitoring device places inorganic salt in the tracer storage area 7. The inorganic salt is placed on the flow base plate 11 with a certain distance at the lower end of the flow baffle 10. At the same time, the inorganic salt is placed to a certain thickness to ensure its use during the rainwater flushing process. When it rains, the falling rainwater is collected at the water inlet 6 through the water collection enclosure 4 and the water collection plate 5. At the same time, the water collection enclosure 4 is higher than the water on the ground. The collected rainwater flows out through the water inlet 6 and enters the flow inlet 17. It enters the flow channel 9 through the flow inlet 17 and falls into the tracer storage area 7 through the rainwater entering the flow inlet 17.

[0055] S2: After entering the tracer storage area 7, the rainwater washes and melts the inorganic salt, so that the rainwater contains inorganic salt solution ions. The inorganic salt solution ions flow out of the rainwater through the flow-out port 18, enter the tracer outflow groove 12, and pass through the tracer outflow groove 12 to enter the tracer mixing device 13.

[0056] S3: In the tracer mixing device 13, the rainwater flows out through the tracer outflow groove 12. During the flowing process, the other rainwater flows along the road to the two sides of the road and enters the tracer mixing bottom plate 21 on the side of the road curb stone 23 for mixing. During this process, the mixed rainwater enters the flushing device 14. The flushing weir body 24 of the flushing device 14 is higher than the tracer mixing bottom plate 21. During the flowing process, a leap layer is formed to accelerate the mixing of the inorganic salt. After the inorganic salt is melted, the inorganic salt and the rainwater are mixed and enter the urban pipeline.

[0057] S4: After the rainwater enters the urban pipeline, in order to ensure the outflow monitoring of the inorganic salt rainwater, a plurality of tracer detection devices 3 are arranged in the lock holes of different inspection wells in the urban pipeline. The rainwater is monitored through the sensor of the tracer detection device 3. During the monitoring process, the water detection and the water tracing substance monitoring are realized through the conductivity monitoring of the sensing probe. The qualitative mixing connection monitoring and the semi-quantitative mixing distance analysis are realized through the peak value of the wave conductivity change.

[0058] A method for using a rainwater mixing connection tracing monitoring device in light rain conditions, comprising the following steps:

[0059] S1: The rainwater mixing connection tracing monitoring device places the inorganic salt in the tracer storage area 7. The inorganic salt is placed on the flow-out bottom plate 11 with a certain interval at the lower end of the flow-out partition plate 10. At the same time, the inorganic salt is placed with a certain thickness to ensure the use during the rainwater washing process.

[0060] The flow-out port 18 and the tracer outflow groove 12 are provided with a cloth 32. A proper amount of pure water is added in the tracer storage area 7 to ensure that the lower edge of the cloth 32 is slightly higher than the water level.

[0061] When it rains, the falling rainwater is collected at the water collecting port 6 through the water collecting fence 4 and the water collecting disc 5. At the same time, the water collecting fence 4 is higher than the ground water. The collected rainwater flows out through the water collecting port 6, enters the flow-in port 17, and then enters the flow-in groove 9. The rainwater falls into the tracer storage area 7 through the flow-in port 17.

[0062] S2: After entering the tracer storage area 7, the rainwater washes and melts the inorganic salt, so that the rainwater contains inorganic salt solution ions.

[0063] The limited water quantity, the inorganic salt solution ions flow out through the cloth 32 capillary action in the rainwater, into the tracer outflow groove 12, through the tracer outflow groove 12 into the tracer mixing device 13;

[0064] S3: in the tracer mixing device 13 through the tracer outflow groove 12 in the outflow, in the outflow process, the tracer mixing device 13, other rainwater through the road to both sides of the road along the collection, and on the road along the stone 23 side into the tracer mixing bottom plate 21, mixing, in the process, the mixed rainwater into the leaching device 14, the leaching weir 24 of the leaching device 14 is higher than the tracer mixing bottom plate 21, in the flow process, the formation of the jump wave layer, accelerate the inorganic salt mixing, inorganic salt melting with rainwater mixed into the city pipeline;

[0065] S4: after the rainwater into the city pipeline, in order to ensure the outflow monitoring of inorganic salt rainwater, a plurality of tracer detection devices 3 are arranged in the lock hole of different inspection wells in the city pipeline, the rainwater is monitored through the sensor of the tracer detection device 3, in the monitoring process, the water detection and water tracing material monitoring are realized through the conductivity monitoring of the sensing probe, the qualitative monitoring of mixing and the semi-quantitative analysis of mixing distance are realized through the peak value of the wave conductivity change.

[0066] The above only is the preferred embodiment of the present application, it should be pointed out, for the person skilled in the art, without departing from the technical principles of the present application, can make a number of improvements and replacement, these improvements and replacement are considered within the scope of the present application.

Claims

1. A rainwater cross-connection tracing monitoring device comprising a tracer flushing system and a tracer detection system, characterized in that, The tracer flushing system comprises a water collecting device and a tracer adding area, and the tracer detecting system comprises a tracer detecting device, the water collecting device comprises a water collecting fence, a water collecting tray and a water collecting port, the water collecting tray is arranged below the water collecting fence, the water collecting port is arranged at the gap of the water collecting fence, one side of the water collecting port is below the tracer adding area, the tracer adding area comprises a tracer storage area and a water flowing channel, the water flowing channel comprises a flowing groove, a flowing partition plate and a flowing bottom plate, the flowing bottom plate is connected with the flowing groove, the flowing partition plate is connected with the flowing groove, the space between the flowing partition plate and the flowing bottom plate forms the tracer storage area, one side of the flowing groove is provided with a tracer outlet groove, the lower end of the tracer outlet groove is provided with a tracer mixing device, one side of the tracer mixing device is provided with a melting device, the tracer detecting device comprises a sensor and a cover plate, and the sensor is arranged at the lower end of the cover plate. The flowing groove comprises a flowing inlet and a flowing outlet, the flowing inlet is arranged at the lower end of the water collecting port, the flowing outlet is symmetrically arranged with the flowing inlet about the flowing partition plate, the lower end of the flowing inlet is provided with the tracer storage area, and the flowing partition plate and the flowing bottom plate are arranged with a spacing, the flowing partition plate separates the flowing groove into a U-shaped water channel. The flowing outlet is connected with the tracer outlet groove, the tracer outlet groove comprises an outlet groove baffle and an outlet groove bottom plate, the outlet groove baffle and the outlet groove bottom plate are respectively connected with the flowing groove at the flowing outlet; the tracer mixing device comprises a tracer mixing bottom plate, the mixing fence is arranged on the periphery of the tracer mixing bottom plate, the mixing fence respectively takes the mixed water of the water collecting device and through the ground to the road along the road edge, and the water collecting device is arranged on one side of the road edge stone. The melting device comprises a melting weir body and melting holes, the melting weir body is arranged on one side of the tracer mixing device, the melting holes are uniformly arranged on the melting weir body, the melting holes are conical hole bodies arranged from large to small on the melting weir body.

2. The rainwater mixing connection traceability monitoring device according to claim 1, characterized in that, Cloth can be placed on the flowing outlet and the tracer outlet groove, one section of the cloth is fixed in the tracer outlet groove through a fixing plate, and the other section of the cloth is fixedly connected in the U-shaped water channel.

3. The rainwater mixing connection traceability monitoring device according to claim 1, characterized in that, The sensor comprises a sensing battery and an electronic cabin, the sensing battery is connected with the electronic cabin, the lower end of the sensing battery is provided with a probe interface, the lower end of the probe interface is provided with a probe cable, and the lower end of the probe cable is provided with a probe, and the probe is a conductivity detection probe.

4. The rainwater mixing connection traceability monitoring device according to claim 2, characterized in that, The tracer is sodium chloride or potassium chloride.

5. A method for using a rainwater mixing connection traceability monitoring device, characterized in that, The rainwater mixing traceability monitoring device is the rainwater mixing traceability monitoring device according to any one of claims 1 to 4, comprising the following steps: S1: The rainwater mixing connection traceability monitoring device places inorganic salt in the tracer storage area, wherein the inorganic salt is placed on the flowing bottom plate at a certain distance from the lower end of the flowing partition plate, and the inorganic salt is placed at a certain thickness to ensure use during the rainwater washing process. When it rains, the falling rainwater is collected in the water collection opening through the water collection fence and the water collection disc, and the water collection fence is higher than the ground water. The collected rainwater flows out through the water collection opening and enters the flowing inlet, and then falls into the tracer storage area through the rainwater flowing into the flowing inlet. S2: After entering the tracer storage area, when the rainfall is large, the rainwater washes and melts the inorganic salt, so that the inorganic salt solution ions are contained in the rainwater. The inorganic salt solution ions flow out of the rainwater through the flowing outlet and enter the tracer outlet groove, and then enter the tracer mixing device through the tracer outlet groove. When the rainfall is small, the flowing outlet and the tracer outlet groove are placed with cloth strips. A certain amount of pure water is added to the tracer storage area to ensure that the lower edge of the cloth strip is slightly higher than the water level. The inorganic salt solution ions flow out of the rainwater through the capillary action of the cloth strip, enter the tracer outlet groove, and then enter the tracer mixing device through the tracer outlet groove. S3: In the tracer mixing device, the inorganic salt ions flow into the tracer mixing device through the tracer outlet groove. Other rainwater flows along the road along the ground and enters the tracer mixing bottom plate along the side of the road along the stone. The mixed rainwater enters the flushing device, and the flushing weir body of the flushing device is higher than the tracer mixing bottom plate. In the flowing process, a jump wave layer is formed, and the inorganic salt particles carried out from the tracer storage area are in the jump wave layer. The inorganic salt particles can be melted and washed in the melting hole of the flushing weir body to prevent the inorganic salt particles from flowing out and ensure the stability of the tracer output. After the inorganic salt is melted in the melting hole, the mixed rainwater enters the city pipeline. S4: After the rainwater enters the city pipeline, in order to ensure the outflow monitoring of the inorganic salt rainwater, a plurality of tracer detection devices are arranged in the lock hole of the different inspection wells of the city pipeline. The rainwater is traced and monitored by the sensor of the tracer detection device. In the monitoring process, the probe is monitored by the conductivity of the sensing probe to monitor the traceability material in the water. The mixing connection is qualitatively monitored and the mixing connection distance is semi-quantitatively analyzed by the peak value of the wave conductivity change.

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