Water sample sampling system for surface water environment quality intelligent monitoring

Abstract

The present application relates to the field of water quality monitoring method, in particular to a water sample sampling system for intelligent monitoring of surface water environmental quality, comprising a background processor and a water quality sampling station located at a monitoring point; further comprising a plurality of water quality monitoring devices for monitoring the water sample of the water quality sampling station, the water quality monitoring devices being in wireless communication connection with the background processor and transmitting monitoring data to the background processor; the water quality sampling station continuously extracts and stores the water sample at the monitoring point and automatically overflows the excess water sample, and the water quality sampling station respectively delivers the water sample to the water quality monitoring devices for water quality analysis to obtain monitoring data. The present application is used for continuously monitoring raw water quality, makes the collected monitoring water sample more uniform, improves the stability of water quality, reduces the monitoring error, and makes the water quality monitoring result more accurate.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of water quality monitoring methods, in particular to a water sample sampling system for intelligent monitoring of surface water environmental quality. BACKGROUND

[0002] Surface water is the general term for dynamic water and static water on the surface of the earth, including various liquid and solid water bodies, mainly rivers, lakes, marshes, glaciers, ice caps, etc. With the development of human life activities and industrial activities, rivers and lakes near human life or industrial activities are easily polluted. Surface water is related to the cleanliness of human drinking water, so it is very important to monitor the water environmental quality of surface water.

[0003] The monitoring of water environmental quality is usually carried out using sensors of relevant pollutants to detect the concentration of pollutants, or using a container carried by the person to temporarily sample and store the water sample at the destination, and then determining the water quality in a specific laboratory, and then warning according to the concentration of the monitoring or determination result to remind the management of the water environment.

[0004] However, the current automatic monitoring of surface water is to collect instantaneous water samples at one point for monitoring. Since the water of some rivers or lakes is in a state of rapid flow, the water quality is unstable, and the pollutants in the water are not evenly distributed. Directly using sensors to detect the concentration of pollutants at the pollution point, or using a container carried by the person to sample and determine, the instantaneous water sample at one point sometimes cannot accurately and effectively reflect the true condition of the water quality, and the monitoring result will have a large error. SUMMARY

[0005] The present application aims to provide a water sample sampling system for intelligent monitoring of surface water environmental quality, which collects mixed water samples for automatic monitoring, to solve the problem of error in monitoring results caused by the water samples collected at one point cannot accurately and effectively reflect the true condition of the water quality.

[0006] The water sample sampling system for intelligent monitoring of surface water environmental quality in the present application comprises a background processor and a water quality sampling station located at the monitoring point.

[0007] It also comprises a plurality of water quality monitoring devices for monitoring the water sample of the water quality sampling station, the water quality monitoring devices are wirelessly connected to the background processor and transmit monitoring data to the background processor.

[0008] The water quality sampling station continuously extracts and stores the water sample at the monitoring point and automatically overflows the excess water sample, and the water quality sampling station delivers the water sample to the water quality monitoring device for water quality analysis to obtain monitoring data.

[0009] The beneficial effects of the present application are:

[0010] For the water sample in a flowing state, the water sample is continuously extracted and stored by the water quality sampling station, and the excess water sample is automatically overflowed, so that a stable water quality sampling environment can be formed in the water quality sampling station. The water sample is then transported to the water quality monitoring equipment for water quality analysis to obtain monitoring data. In the stable environment for water quality sampling, continuous water quality monitoring is performed, the monitoring water sample for monitoring water quality is more uniform, the stability of the water quality condition is improved, the monitoring error is reduced, and the water quality monitoring result is more accurate.

[0011] Further, the water quality sampling station comprises a water extraction assembly and a water storage tank, the water extraction assembly continuously extracts water samples into the water storage tank, and any water storage tank is fixedly provided with a drain pipe at the top.

[0012] The beneficial effect is that: by setting a plurality of water storage tanks and connecting the water storage tanks, the water samples can be stably stored for accurate sampling and detection, the accuracy of the monitoring result is improved, and the water samples in the water storage tank are consistent with the monitoring point through the overflow discharge of the excess water sample by the drain pipe.

[0013] Further, the water extraction assembly comprises a plurality of water pumps located in the water of the monitoring point, the water pumps are started in turn and in sequence at equal intervals, and the water pumps are connected to the water storage tank through a pipeline.

[0014] The beneficial effect is that: by setting a plurality of water pumps to work in turn and in sequence at equal intervals, the water sample can be continuously extracted for a long time, the water sample in the water storage tank is consistent with the monitoring point, and the water quality condition in the water sample monitoring system is stable, so that the overall monitoring result is more accurate.

[0015] Further, the water extraction assembly further comprises a time controller, the time controller is located on the water storage tank, the time controller counts the equal interval time, and controls the water pump to start or stop when the counting is completed.

[0016] The beneficial effect is that: by automatically controlling the start or stop of the water pump, the continuity of the water sample extracted into the water storage tank can be improved.

[0017] Further, the water storage tank transports the water sample to the water quality monitoring equipment for water quality detection through a raw water pipe, the raw water pipe is provided with a first sampler at one end of the water storage tank, the raw water pipe is provided with a second sampler at one end of the water quality monitoring equipment, the first sampler detects the water quality information of the inlet end of the raw water pipe, the second sampler is used to detect the water quality information of the outlet end of the raw water pipe, the background processor acquires the inlet water quality information and the outlet water quality information to determine whether they are the same and whether the raw water pipe pollutes the water sample.

[0018] The beneficial effect is that by detecting the water quality information of the two ends of the raw water pipe conveying the water sample to the water quality monitoring device, it is judged whether the water quality before and after conveying the water sample is the same, so as to judge whether the water quality is polluted by the raw water pipe, thereby excluding the interference of additional equipment and improving the accuracy of the monitoring result of the water quality monitoring device.

[0019] Further, the third sampler is arranged at one end of the pipeline of the water storage tank, and the third sampler detects initial water quality information of the water inlet end of the water storage tank. The background processor acquires the initial water quality information and judges whether the initial water quality information is the same as the inlet water quality information. The background processor determines the device position of water quality interference according to the initial water quality information, the inlet water quality information and the outlet water quality information.

[0020] The beneficial effect is that the water quality information is detected at three points, and then the device position of water quality interference is judged according to the water quality information of the three points, so as to accurately determine the interference position and facilitate subsequent processing.

[0021] Further, a plurality of monitors are arranged on the water storage tank, and the monitors are uniformly distributed along the outer side wall of the water storage tank. The monitor is signal-connected with a communicator. The monitor shoots a monitoring image and sends the monitoring image to the background processor through the communicator.

[0022] The beneficial effect is that the communicator is arranged to send the monitoring image to the background processor, so as to facilitate remote monitoring of the scene.

[0023] Further, an adjusting mechanism for adjusting the depth of the water pump in water is arranged on the pipeline, and any monitor is arranged towards the pipeline side. The background processor acquires the monitoring image of the monitor towards the pipeline side and identifies the reduction amount of water level from the monitoring image. When the reduction amount is greater than a threshold value, the background processor sends an adjusting signal to the time controller. The time controller controls the adjusting mechanism to start and drive the water pump to dive into water by a preset distance according to the adjusting signal.

[0024] The beneficial effect is that when the reduction amount of water level is large, an adjusting signal is sent to the adjusting mechanism to make the water pump dive into water by a preset distance, so that the reduction of water level can be monitored in time and the water pump can be kept at a suitable position in water for water sample sampling.

[0025] Further, the background processor adds a time label to the monitoring image acquired from the monitor towards the pipeline side, and identifies the water surface position on the monitoring image in the order of time label time. The background processor obtains the reduction amount by subtracting the water surface positions of adjacent time point monitoring images.

[0026] The beneficial effect is that the water level monitoring does not need to additionally set a water level sensor, saves the overall cost of the system, and the water level monitoring is more timely.

[0027] Further, the adjusting mechanism comprises a mounting seat, a motor and a screw rod, the water pump is located on the end of the screw rod entering the water, the mounting seat is fixed on the bank, the motor is fixed on the mounting seat, a driving gear is fixed on the output shaft of the motor, a driven gear is threadedly matched on the screw rod, the driving gear is engaged with the driven gear, a rotation limiting plate is fixed on the mounting seat, the rotation limiting plate is L-shaped and shields above the motor, a limiting groove extending in the axial direction is formed on the screw rod, and a limiting head extending into the limiting groove is fixed on the rotation limiting plate.

[0028] The beneficial effect is that the position of the water pump can be adjusted conveniently through the setting of various structures of the adjusting mechanism. BRIEF DESCRIPTION OF DRAWINGS

[0029] Figure 1 is a schematic block diagram of the water sample sampling system for the intelligent monitoring of the surface water environment quality of the first embodiment of the application;

[0030] Figure 2 is a front view of the water quality sampling station in the water sample sampling system for the intelligent monitoring of the surface water environment quality of the first embodiment of the application;

[0031] Figure 3 is a front view of the water quality sampling station in the water sample sampling system for the intelligent monitoring of the surface water environment quality of the second embodiment of the application;

[0032] Figure 4 is a front view of the water sample sampling system for the intelligent monitoring of the surface water environment quality of the fourth embodiment of the application. DETAILED DESCRIPTION

[0033] The following is further described in detail through specific embodiments:

[0034] The reference signs in the drawings of the specification comprise a water storage tank 1, a pipeline 2, a drain pipe 3, water quality monitoring equipment 4, a water pump 5, a mounting seat 6, a rotation limiting plate 7, a motor 8, a screw rod 9, a supporting limiting plate 10, a driving gear 11, a driven gear 12, a third sampler 13, a raw water pipe 14, a first sampler 15 and a second sampler 16.

[0035] Embodiment one

[0036] The water sample sampling system for the intelligent monitoring of the surface water environment quality, like Figure 1As shown: It includes a background processor, a water quality sampling station located at the monitoring point, and several water quality monitoring devices 4 for monitoring water samples from the water quality sampling station. The monitoring point is the location to be monitored, such as the area around a sewage treatment plant. The water quality monitoring devices 4 are wirelessly connected to the background processor and transmit monitoring data to the background processor. The water quality monitoring devices 4 communicate with the background processor through a 4G mobile network or a 5G mobile network. The water quality monitoring devices 4 select devices that meet the measurement requirements according to actual needs.

[0037] The water sampling station continuously extracts and stores water samples from monitoring points, automatically overflowing any excess water samples. The water sampling station then supplies water samples to the water quality monitoring equipment 4 for analysis to obtain monitoring data. The water sampling station includes a pumping unit and a storage tank 1. The pumping unit continuously pumps water samples into the storage tank 1. A drain pipe 3 is welded to the top of the storage tank 1, automatically overflowing any excess water when full. The capacity of the storage tank 1 is set according to actual needs; for example, the capacity of the storage tank 1 is five liters. The water quality monitoring equipment 4 is located on the raw water pipe from which the water sample is output from the storage tank 1. The pumping assembly includes several pumps 5 located in the water at the monitoring points. The pumps 5 start sequentially at equal intervals, meaning that continuous pumping means that the water storage tank 1 works alternately to keep pumping water into the water storage tank 1. The pumps 5 are connected to the water storage tank 1 through pipes 2. The pumping assembly also includes a time controller located on the water storage tank 1. The time controller times the equal intervals and controls the pumps 5 to start or stop when the timer ends. The time controller can use an existing microcontroller chip.

[0038] like Figure 2 As shown, taking the installation of two water pumps 5 as an example, each water pump 5 is a 5.5kW submersible pump, and the pipeline 2 uses PPR-DN75 pipe. The water pumps 5 operate continuously for 24 hours, using a one-in-one-out-of-service configuration, meaning that each water pump 5 runs for 24 hours before stopping and switching to the other, which is equivalent to an equal interval of 24 hours.

[0039] When taking water samples at monitoring points, especially for flowing water samples, the water pump 5 of the water quality sampling station is started sequentially at intervals to continuously extract water samples and store them in the water storage tank 1. Excess water sample in the storage tank 1 automatically overflows through the drain pipe 3, creating a stable water quality sampling environment within the water quality sampling station. The water samples are then transported to the water quality monitoring equipment 4 for water quality analysis to obtain monitoring data. The water quality monitoring equipment 4 uses existing equipment, and the frequency of water sample testing is determined according to actual needs, such as once every two hours or once every four hours. Water quality testing is conducted in a stable environment for water quality sampling, resulting in more uniform raw water for testing, improved water quality stability, reduced monitoring errors, and more accurate water quality monitoring results.

[0040] In contrast to traditional water quality monitoring methods that typically involve real-time collection and storage followed by subsequent testing, or direct collection from flowing water samples for testing, this application addresses the issue of continuously pumping water samples into a storage tank 1 over a long period and draining the pumped water sample (which exceeds the volume of water in the storage tank 1) through a drain pipe 3. The water sample stored in the storage tank 1 maintains the same real-time water conditions as rivers, etc. This embodiment stores water samples in a flowing manner, keeping the water sample consistent with the water conditions in rivers, etc. At the same time, the instantaneous flow rate of the water sample in the storage tank 1 is less than that in rivers, thereby improving the uniformity and stability of the water sample.

[0041] Example 2

[0042] The water sampling system for intelligent monitoring of surface water environmental quality differs from Example 1 in that, for example... Figure 3 Therefore, the water storage tank 1 delivers water samples to the water quality monitoring equipment 4 through the raw water pipe 14 for water quality testing. A first sampler 15 is installed on one end of the raw water pipe 14 located in the water storage tank 1, and a second sampler 16 is installed on the other end of the raw water pipe 14 located in the water quality monitoring equipment 4. The first sampler 15 detects the inlet water quality information of the raw water pipe 14, and the second sampler 16 is used to detect the outlet water quality information of the raw water pipe 14. A third sampler 13 is installed on one end of the pipe 2 located in the water storage tank 1. The third sampler 13 detects the initial water quality information at the inlet of the water storage tank 1. The first sampler 15, the second sampler, and the third sampler can be existing water quality information sensors. The water quality information sensors are selected according to the actual situation. For example, the water quality information sensors can be selected such as conductivity electrodes, pH meters, etc., and the parameters detected by the conductivity electrodes are used as water quality information.

[0043] The background processor obtains the water quality information of the inlet and the outlet to determine whether they are the same. The difference between the water quality information of the inlet and the outlet is determined to be within an error range. If the difference is within the error range, the water quality information of the inlet and the outlet is the same. The water quality information of the inlet and the outlet is used to determine whether the raw water pipe 14 pollutes the water sample. When the water quality information of the inlet and the outlet is the same, it is determined that the raw water pipe 14 does not pollute. When the water quality information of the inlet and the outlet is different, it is determined that the raw water pipe 14 pollutes. The background processor performs pollution identification, which can be represented by text. The background processor obtains the initial water quality information and determines whether it is the same as the water quality information of the inlet. The determination of whether the initial water quality information and the water quality information of the inlet are the same is the same as the determination of whether the water quality information of the inlet and the outlet is the same. The background processor determines the position of the water quality interference device according to the initial water quality information, the water quality information of the inlet and the outlet. When the initial water quality information and the water quality information of the inlet are different, it is determined that the position of the water quality interference device is the water storage tank 1. The background processor adds a pollution identification to the water storage tank 1. When the water quality information of the inlet and the outlet is different, it is determined that the position of the water quality interference device is the raw water pipe 14. The background processor adds a pollution identification to the raw water pipe 14.

[0044] In actual monitoring environment, water quality information is monitored for a long time. During use, various pipes may age or change in other ways, thereby releasing other substances into the water sample and interfering with the water quality monitoring results. Therefore, in this embodiment, the water quality information of the water sample at both ends of the raw water pipe 14 conveying to the water quality monitoring device 4 is detected to determine whether the water quality before and after conveying the water sample is the same, thereby determining whether the water quality is polluted by the raw water pipe 14, and determining the position of the water quality interference device in combination with the initial water quality information, thereby excluding the interference of additional devices, improving the accuracy of the monitoring results of the water quality monitoring device 4, and timely discovering the aging of the raw water pipe 14 for timely replacement.

[0045] In this embodiment, the water sample is continuously extracted and mixed to ensure uniformity of the monitoring water sample. The water quality information of each device of the continuously extracted water sample is detected and compared to determine whether the water sample is polluted by the device, thereby excluding the interference of the water quality monitoring results, and ensuring the accuracy, timeliness, uniformity and integrity of the water sample collection results from multiple aspects.

[0046] Embodiment three

[0047] The water sample sampling system for intelligent monitoring of surface water environmental quality is different from that of the first embodiment in that a plurality of monitors are installed on the water storage tank 1, the monitors are evenly distributed along the outer side wall of the water storage tank, the monitor can use an existing camera, the monitor is connected with a communicator, the communicator can interact information through a 4G network, the monitor shoots a monitoring image and sends the monitoring image to the background processor through the communicator, so as to monitor the situation on the scene.

[0048] Embodiment four

[0049] The water sample sampling system for intelligent monitoring of surface water environmental quality is different from that of the third embodiment in that, as shown in Figure 4 The adjusting mechanism for adjusting the depth of the water pump 5 in the water is installed on the pipeline 2, the adjusting mechanism comprises a mounting seat 6, a motor 8 and a lead screw 9, the water pump 5 is fixedly installed on the end of the lead screw 9 into the water through gaskets and screws, the mounting seat 6 is fixed on the shore through screws, the motor 8 is fixedly installed on the mounting seat 6, a driving gear 11 is keyed on the output shaft of the motor 8, a driven gear 12 is threadedly matched on the lead screw 9, the driving gear 11 is engaged with the driven gear 12, a rotating limiting plate 7 is welded on the mounting seat 6, the rotating limiting plate 7 is L-shaped and shields above the motor 8, a limiting groove extending in the axial direction is formed on the lead screw 9, a limiting head extending into the limiting groove is fixed on the rotating limiting plate 7, a supporting limiting plate 10 limiting the driven gear 12 is welded on the rotating limiting plate 7, and the driven gear 12 is fixed on the supporting limiting plate 10 through a rotating bearing.

[0050] Any monitor is arranged towards one side of the pipeline 2, the background processor acquires the monitoring image of the monitor towards one side of the pipeline 2, the background processor adds a time label to the monitoring image acquired from the monitor towards one side of the pipeline 2, the background processor identifies the reduction amount of the water level from the monitoring image, and sequentially identifies the water surface position on the monitoring image according to the time sequence of the time label, the water surface position is obtained by an image processing algorithm, the background processor obtains the reduction amount by subtracting the water surface positions of adjacent time points, the subtraction of the water surface positions is based on the pixel positions on the image, when the reduction amount is greater than a threshold value, the threshold value is set according to actual requirements, for example, the threshold value is 3cm, the background processor sends an adjusting signal to the time controller, the time controller controls the adjusting mechanism to start driving the water pump 5 to dive into the water by a preset distance according to the adjusting signal, that is, the time controller controls the motor 8 to rotate, the motor 8 drives the driving gear 11 to rotate, the driving gear 11 drives the driven gear 12 to rotate, the lead screw 9 cannot rotate because it is limited, so that the driven gear 12 rotates to make the lead screw 9 move linearly, and the linear position of the adjusting water pump 5 is adjusted.

[0051] Since the surface water is affected by the weather at each section of the river, the water level of the river will change, if the water pump 5 is still pumping water at the fixed position at this time, the water sample cannot accurately represent the water quality information. Therefore, in the embodiment, the monitoring image is sequentially added with a time label, the water surface position difference on the monitoring image is obtained according to the order of the time label, the water level reduction amount is identified from the monitoring image, when the water level reduction amount is large, an adjustment signal is sent to the adjusting mechanism, so that the water pump 5 is submerged in the water by a preset distance, the water level reduction can be monitored in time, and the water pump 5 can be kept at a suitable position in the water to sample the water sample. Further, while the monitoring water sample is continuously collected in the water storage tank 1 to keep the uniformity of the monitoring water sample, the accuracy and timeliness of the water quality represented by the monitoring water sample are ensured from the water pumping source of the water pump 5.

[0052] The above is only an embodiment of the present application, and the common knowledge of the specific structure and characteristics in the scheme is not described in detail. It should be pointed out that for those skilled in the art, without departing from the structure of the present application, a number of modifications and improvements can be made, which should also be considered as the protection scope of the present application, which will not affect the effect and practicality of the patent. The protection scope of the present application should be subject to the content of its claims, and the specific implementation mode and the like in the specification can be used to explain the content of the claims.

Claims

1. A water sampling system for intelligent monitoring of surface water environmental quality, comprising a backend processor and a water sampling station located at the monitoring point; characterized in that: It also includes several water quality monitoring devices for monitoring water samples from water sampling stations. The water quality monitoring devices are wirelessly connected to the background processor and transmit monitoring data to the background processor. The water sampling station continuously extracts and stores water samples from the monitoring point and automatically overflows any excess water samples. The water sampling station then supplies water samples to the water quality monitoring equipment for water quality analysis to obtain monitoring data. The water sampling station includes a pumping assembly and a water storage tank. The pumping assembly continuously pumps water samples into the water storage tank. The water storage tank delivers water samples to the water quality monitoring equipment through a raw water pipe for water quality testing. A first sampler is installed at one end of the raw water pipe in the water storage tank, and a second sampler is installed at the other end of the raw water pipe in the water quality monitoring equipment. The first sampler detects the inlet water quality information at the inlet end of the raw water pipe, and the second sampler detects the outlet water quality information at the outlet end of the raw water pipe. The background processor obtains the inlet water quality information and the outlet water quality information to determine whether they are the same, and determines whether the raw water pipe has caused pollution to the water sample. The pumping assembly includes several pumps located in the water at monitoring points. The pumps are started sequentially at equal intervals. The pumps are connected to a water storage tank via pipes. A third sampler is installed at one end of the pipes in the water storage tank. The third sampler detects the initial water quality information at the inlet of the water storage tank. The background processor acquires the initial water quality information and determines whether the initial water quality information is the same as the inlet water quality information. The background processor determines the location of the equipment causing water quality interference based on the initial water quality information, the inlet water quality information, and the outlet water quality information.

2. The water sampling system for intelligent monitoring of surface water environmental quality according to claim 1, characterized in that: A drain pipe is fixed to the top of each water storage tank.

3. The water sampling system for intelligent monitoring of surface water environmental quality according to claim 1, characterized in that: The pumping assembly also includes a time controller located on the water storage tank. The time controller times the time at equal intervals and controls the pump to start or stop when the timer ends.

4. The water sampling system for intelligent monitoring of surface water environmental quality according to claim 1, characterized in that: The water storage tank is equipped with several monitors, which are evenly distributed along the outer wall of the water storage tank. The monitors are connected to a communicator, and the monitors capture monitoring images and send them to the background processor through the communicator.

5. The water sampling system for intelligent monitoring of surface water environmental quality according to claim 4, characterized in that: The pipeline is equipped with an adjustment mechanism to regulate the depth of the water pump in the water. Any monitor is set facing one side of the pipeline. The background processor acquires the monitoring image of the monitor facing the pipeline and identifies the amount of water level drop from the monitoring image. When the amount of drop is greater than a threshold, the background processor sends an adjustment signal to the time controller. The time controller controls the adjustment mechanism to start and drive the water pump to submerge a preset distance in the water according to the adjustment signal.

6. The water sampling system for intelligent monitoring of surface water environmental quality according to claim 5, characterized in that: The background processor adds time tags to the monitoring images obtained from the monitor on the side facing the pipeline, and identifies the water surface position on the monitoring images in chronological order according to the time tags. The background processor calculates the reduction amount by subtracting the water surface positions of monitoring images at adjacent time points.

7. The water sampling system for intelligent monitoring of surface water environmental quality according to claim 6, characterized in that: The adjustment mechanism includes a mounting base, a motor, and a lead screw. The water pump is located at the end of the lead screw that enters the water. The mounting base is fixed to the shore. The motor is fixed to the mounting base. A drive gear is fixed on the output shaft of the motor. A driven gear is threaded onto the lead screw. The drive gear meshes with the driven gear. A rotation limiting plate is fixed on the mounting base. The rotation limiting plate is L-shaped and covers the motor. A limiting groove extending axially is opened on the lead screw. A limiting head extending into the limiting groove is fixed on the rotation limiting plate.

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